diff options
Diffstat (limited to 'drivers/usb')
167 files changed, 20930 insertions, 1440 deletions
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig index bcefbddeba50..289d81adfb9c 100644 --- a/drivers/usb/Kconfig +++ b/drivers/usb/Kconfig @@ -36,7 +36,8 @@ config USB_ARCH_HAS_OHCI default y if PXA3xx default y if ARCH_EP93XX default y if ARCH_AT91 - default y if ARCH_PNX4008 + default y if ARCH_PNX4008 && I2C + default y if MFD_TC6393XB # PPC: default y if STB03xxx default y if PPC_MPC52xx @@ -97,6 +98,8 @@ source "drivers/usb/core/Kconfig" source "drivers/usb/mon/Kconfig" +source "drivers/usb/wusbcore/Kconfig" + source "drivers/usb/host/Kconfig" source "drivers/usb/musb/Kconfig" diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile index a419c42e880e..8b7c419b876e 100644 --- a/drivers/usb/Makefile +++ b/drivers/usb/Makefile @@ -16,9 +16,12 @@ obj-$(CONFIG_USB_UHCI_HCD) += host/ obj-$(CONFIG_USB_SL811_HCD) += host/ obj-$(CONFIG_USB_U132_HCD) += host/ obj-$(CONFIG_USB_R8A66597_HCD) += host/ +obj-$(CONFIG_USB_HWA_HCD) += host/ obj-$(CONFIG_USB_C67X00_HCD) += c67x00/ +obj-$(CONFIG_USB_WUSB) += wusbcore/ + obj-$(CONFIG_USB_ACM) += class/ obj-$(CONFIG_USB_PRINTER) += class/ diff --git a/drivers/usb/atm/speedtch.c b/drivers/usb/atm/speedtch.c index 76fce44c2f9a..3e862401a638 100644 --- a/drivers/usb/atm/speedtch.c +++ b/drivers/usb/atm/speedtch.c @@ -722,6 +722,16 @@ static void speedtch_atm_stop(struct usbatm_data *usbatm, struct atm_dev *atm_de flush_scheduled_work(); } +static int speedtch_pre_reset(struct usb_interface *intf) +{ + return 0; +} + +static int speedtch_post_reset(struct usb_interface *intf) +{ + return 0; +} + /********** ** USB ** @@ -740,6 +750,8 @@ static struct usb_driver speedtch_usb_driver = { .name = speedtch_driver_name, .probe = speedtch_usb_probe, .disconnect = usbatm_usb_disconnect, + .pre_reset = speedtch_pre_reset, + .post_reset = speedtch_post_reset, .id_table = speedtch_usb_ids }; diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c index 0da2c25bab3b..06dd114910d4 100644 --- a/drivers/usb/atm/usbatm.c +++ b/drivers/usb/atm/usbatm.c @@ -344,7 +344,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char __func__, sarb->len, vcc); /* discard cells already received */ skb_trim(sarb, 0); - UDSL_ASSERT(sarb->tail + ATM_CELL_PAYLOAD <= sarb->end); + UDSL_ASSERT(instance, sarb->tail + ATM_CELL_PAYLOAD <= sarb->end); } memcpy(skb_tail_pointer(sarb), source + ATM_CELL_HEADER, ATM_CELL_PAYLOAD); @@ -432,7 +432,7 @@ static void usbatm_extract_cells(struct usbatm_data *instance, unsigned char *cell_buf = instance->cell_buf; unsigned int space_left = stride - buf_usage; - UDSL_ASSERT(buf_usage <= stride); + UDSL_ASSERT(instance, buf_usage <= stride); if (avail_data >= space_left) { /* add new data and process cell */ @@ -475,7 +475,7 @@ static unsigned int usbatm_write_cells(struct usbatm_data *instance, unsigned int stride = instance->tx_channel.stride; vdbg("%s: skb->len=%d, avail_space=%u", __func__, skb->len, avail_space); - UDSL_ASSERT(!(avail_space % stride)); + UDSL_ASSERT(instance, !(avail_space % stride)); for (bytes_written = 0; bytes_written < avail_space && ctrl->len; bytes_written += stride, target += stride) { @@ -547,7 +547,7 @@ static void usbatm_rx_process(unsigned long data) if (!urb->iso_frame_desc[i].status) { unsigned int actual_length = urb->iso_frame_desc[i].actual_length; - UDSL_ASSERT(actual_length <= packet_size); + UDSL_ASSERT(instance, actual_length <= packet_size); if (!merge_length) merge_start = (unsigned char *)urb->transfer_buffer + urb->iso_frame_desc[i].offset; @@ -1188,7 +1188,7 @@ int usbatm_usb_probe(struct usb_interface *intf, const struct usb_device_id *id, struct urb *urb; unsigned int iso_packets = usb_pipeisoc(channel->endpoint) ? channel->buf_size / channel->packet_size : 0; - UDSL_ASSERT(!usb_pipeisoc(channel->endpoint) || usb_pipein(channel->endpoint)); + UDSL_ASSERT(instance, !usb_pipeisoc(channel->endpoint) || usb_pipein(channel->endpoint)); urb = usb_alloc_urb(iso_packets, GFP_KERNEL); if (!urb) { diff --git a/drivers/usb/atm/usbatm.h b/drivers/usb/atm/usbatm.h index e6887c6cf3cf..f6f4508a9d42 100644 --- a/drivers/usb/atm/usbatm.h +++ b/drivers/usb/atm/usbatm.h @@ -40,9 +40,15 @@ */ #ifdef DEBUG -#define UDSL_ASSERT(x) BUG_ON(!(x)) +#define UDSL_ASSERT(instance, x) BUG_ON(!(x)) #else -#define UDSL_ASSERT(x) do { if (!(x)) warn("failed assertion '%s' at line %d", __stringify(x), __LINE__); } while(0) +#define UDSL_ASSERT(instance, x) \ + do { \ + if (!(x)) \ + dev_warn(&(instance)->usb_intf->dev, \ + "failed assertion '%s' at line %d", \ + __stringify(x), __LINE__); \ + } while(0) #endif #define usb_err(instance, format, arg...) \ diff --git a/drivers/usb/atm/xusbatm.c b/drivers/usb/atm/xusbatm.c index 8472543eee81..17d167bbd2dc 100644 --- a/drivers/usb/atm/xusbatm.c +++ b/drivers/usb/atm/xusbatm.c @@ -193,7 +193,7 @@ static int __init xusbatm_init(void) num_vendor != num_product || num_vendor != num_rx_endpoint || num_vendor != num_tx_endpoint) { - warn("malformed module parameters"); + printk(KERN_WARNING "xusbatm: malformed module parameters\n"); return -EINVAL; } diff --git a/drivers/usb/class/Kconfig b/drivers/usb/class/Kconfig index 66f17ed88cb5..2519e320098f 100644 --- a/drivers/usb/class/Kconfig +++ b/drivers/usb/class/Kconfig @@ -40,3 +40,13 @@ config USB_WDM To compile this driver as a module, choose M here: the module will be called cdc-wdm. +config USB_TMC + tristate "USB Test and Measurement Class support" + depends on USB + help + Say Y here if you want to connect a USB device that follows + the USB.org specification for USB Test and Measurement devices + to your computer's USB port. + + To compile this driver as a module, choose M here: the + module will be called usbtmc. diff --git a/drivers/usb/class/Makefile b/drivers/usb/class/Makefile index 535d59a30600..32e85277b5cf 100644 --- a/drivers/usb/class/Makefile +++ b/drivers/usb/class/Makefile @@ -6,3 +6,4 @@ obj-$(CONFIG_USB_ACM) += cdc-acm.o obj-$(CONFIG_USB_PRINTER) += usblp.o obj-$(CONFIG_USB_WDM) += cdc-wdm.o +obj-$(CONFIG_USB_TMC) += usbtmc.o diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index c257453fa9de..20104443081a 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -326,8 +326,8 @@ exit: usb_mark_last_busy(acm->dev); retval = usb_submit_urb (urb, GFP_ATOMIC); if (retval) - err ("%s - usb_submit_urb failed with result %d", - __func__, retval); + dev_err(&urb->dev->dev, "%s - usb_submit_urb failed with " + "result %d", __func__, retval); } /* data interface returns incoming bytes, or we got unthrottled */ @@ -514,7 +514,7 @@ static void acm_waker(struct work_struct *waker) rv = usb_autopm_get_interface(acm->control); if (rv < 0) { - err("Autopm failure in %s", __func__); + dev_err(&acm->dev->dev, "Autopm failure in %s\n", __func__); return; } if (acm->delayed_wb) { @@ -849,9 +849,10 @@ static void acm_write_buffers_free(struct acm *acm) { int i; struct acm_wb *wb; + struct usb_device *usb_dev = interface_to_usbdev(acm->control); for (wb = &acm->wb[0], i = 0; i < ACM_NW; i++, wb++) { - usb_buffer_free(acm->dev, acm->writesize, wb->buf, wb->dmah); + usb_buffer_free(usb_dev, acm->writesize, wb->buf, wb->dmah); } } @@ -924,7 +925,7 @@ static int acm_probe (struct usb_interface *intf, /* normal probing*/ if (!buffer) { - err("Weird descriptor references\n"); + dev_err(&intf->dev, "Weird descriptor references\n"); return -EINVAL; } @@ -934,21 +935,24 @@ static int acm_probe (struct usb_interface *intf, buflen = intf->cur_altsetting->endpoint->extralen; buffer = intf->cur_altsetting->endpoint->extra; } else { - err("Zero length descriptor references\n"); + dev_err(&intf->dev, + "Zero length descriptor references\n"); return -EINVAL; } } while (buflen > 0) { if (buffer [1] != USB_DT_CS_INTERFACE) { - err("skipping garbage\n"); + dev_err(&intf->dev, "skipping garbage\n"); goto next_desc; } switch (buffer [2]) { case USB_CDC_UNION_TYPE: /* we've found it */ if (union_header) { - err("More than one union descriptor, skipping ..."); + dev_err(&intf->dev, "More than one " + "union descriptor, " + "skipping ...\n"); goto next_desc; } union_header = (struct usb_cdc_union_desc *) @@ -966,7 +970,9 @@ static int acm_probe (struct usb_interface *intf, call_management_function = buffer[3]; call_interface_num = buffer[4]; if ((call_management_function & 3) != 3) - err("This device cannot do calls on its own. It is no modem."); + dev_err(&intf->dev, "This device " + "cannot do calls on its own. " + "It is no modem.\n"); break; default: /* there are LOTS more CDC descriptors that @@ -1051,7 +1057,7 @@ skip_normal_probe: for (minor = 0; minor < ACM_TTY_MINORS && acm_table[minor]; minor++); if (minor == ACM_TTY_MINORS) { - err("no more free acm devices"); + dev_err(&intf->dev, "no more free acm devices\n"); return -ENODEV; } @@ -1454,7 +1460,8 @@ static int __init acm_init(void) return retval; } - info(DRIVER_VERSION ":" DRIVER_DESC); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; } diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index 7e8e1235e4e5..5a8ecc045e3f 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -42,6 +42,8 @@ static struct usb_device_id wdm_ids[] = { { } }; +MODULE_DEVICE_TABLE (usb, wdm_ids); + #define WDM_MINOR_BASE 176 @@ -132,10 +134,12 @@ static void wdm_in_callback(struct urb *urb) "nonzero urb status received: -ESHUTDOWN"); break; case -EPIPE: - err("nonzero urb status received: -EPIPE"); + dev_err(&desc->intf->dev, + "nonzero urb status received: -EPIPE\n"); break; default: - err("Unexpected error %d", status); + dev_err(&desc->intf->dev, + "Unexpected error %d\n", status); break; } } @@ -170,16 +174,18 @@ static void wdm_int_callback(struct urb *urb) return; /* unplug */ case -EPIPE: set_bit(WDM_INT_STALL, &desc->flags); - err("Stall on int endpoint"); + dev_err(&desc->intf->dev, "Stall on int endpoint\n"); goto sw; /* halt is cleared in work */ default: - err("nonzero urb status received: %d", status); + dev_err(&desc->intf->dev, + "nonzero urb status received: %d\n", status); break; } } if (urb->actual_length < sizeof(struct usb_cdc_notification)) { - err("wdm_int_callback - %d bytes", urb->actual_length); + dev_err(&desc->intf->dev, "wdm_int_callback - %d bytes\n", + urb->actual_length); goto exit; } @@ -198,7 +204,8 @@ static void wdm_int_callback(struct urb *urb) goto exit; default: clear_bit(WDM_POLL_RUNNING, &desc->flags); - err("unknown notification %d received: index %d len %d", + dev_err(&desc->intf->dev, + "unknown notification %d received: index %d len %d\n", dr->bNotificationType, dr->wIndex, dr->wLength); goto exit; } @@ -236,14 +243,16 @@ static void wdm_int_callback(struct urb *urb) sw: rv = schedule_work(&desc->rxwork); if (rv) - err("Cannot schedule work"); + dev_err(&desc->intf->dev, + "Cannot schedule work\n"); } } exit: rv = usb_submit_urb(urb, GFP_ATOMIC); if (rv) - err("%s - usb_submit_urb failed with result %d", - __func__, rv); + dev_err(&desc->intf->dev, + "%s - usb_submit_urb failed with result %d\n", + __func__, rv); } @@ -353,7 +362,7 @@ static ssize_t wdm_write if (rv < 0) { kfree(buf); clear_bit(WDM_IN_USE, &desc->flags); - err("Tx URB error: %d", rv); + dev_err(&desc->intf->dev, "Tx URB error: %d\n", rv); } else { dev_dbg(&desc->intf->dev, "Tx URB has been submitted index=%d", req->wIndex); @@ -401,7 +410,8 @@ retry: int t = desc->rerr; desc->rerr = 0; spin_unlock_irq(&desc->iuspin); - err("reading had resulted in %d", t); + dev_err(&desc->intf->dev, + "reading had resulted in %d\n", t); rv = -EIO; goto err; } @@ -440,7 +450,7 @@ retry: err: mutex_unlock(&desc->rlock); if (rv < 0) - err("wdm_read: exit error"); + dev_err(&desc->intf->dev, "wdm_read: exit error\n"); return rv; } @@ -450,7 +460,8 @@ static int wdm_flush(struct file *file, fl_owner_t id) wait_event(desc->wait, !test_bit(WDM_IN_USE, &desc->flags)); if (desc->werr < 0) - err("Error in flush path: %d", desc->werr); + dev_err(&desc->intf->dev, "Error in flush path: %d\n", + desc->werr); return desc->werr; } @@ -502,7 +513,7 @@ static int wdm_open(struct inode *inode, struct file *file) rv = usb_autopm_get_interface(desc->intf); if (rv < 0) { - err("Error autopm - %d", rv); + dev_err(&desc->intf->dev, "Error autopm - %d\n", rv); goto out; } intf->needs_remote_wakeup = 1; @@ -512,7 +523,8 @@ static int wdm_open(struct inode *inode, struct file *file) rv = usb_submit_urb(desc->validity, GFP_KERNEL); if (rv < 0) { desc->count--; - err("Error submitting int urb - %d", rv); + dev_err(&desc->intf->dev, + "Error submitting int urb - %d\n", rv); } } else { rv = 0; @@ -600,7 +612,7 @@ static int wdm_probe(struct usb_interface *intf, const struct usb_device_id *id) while (buflen > 0) { if (buffer [1] != USB_DT_CS_INTERFACE) { - err("skipping garbage"); + dev_err(&intf->dev, "skipping garbage\n"); goto next_desc; } @@ -614,7 +626,8 @@ static int wdm_probe(struct usb_interface *intf, const struct usb_device_id *id) "Finding maximum buffer length: %d", maxcom); break; default: - err("Ignoring extra header, type %d, length %d", + dev_err(&intf->dev, + "Ignoring extra header, type %d, length %d\n", buffer[2], buffer[0]); break; } @@ -772,7 +785,8 @@ static int recover_from_urb_loss(struct wdm_device *desc) if (desc->count) { rv = usb_submit_urb(desc->validity, GFP_NOIO); if (rv < 0) - err("Error resume submitting int urb - %d", rv); + dev_err(&desc->intf->dev, + "Error resume submitting int urb - %d\n", rv); } return rv; } diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c index 0647164d36db..b5775af3ba26 100644 --- a/drivers/usb/class/usblp.c +++ b/drivers/usb/class/usblp.c @@ -593,8 +593,9 @@ static long usblp_ioctl(struct file *file, unsigned int cmd, unsigned long arg) err = usblp_hp_channel_change_request(usblp, arg, &newChannel); if (err < 0) { - err("usblp%d: error = %d setting " - "HP channel", + dev_err(&usblp->dev->dev, + "usblp%d: error = %d setting " + "HP channel\n", usblp->minor, err); retval = -EIO; goto done; @@ -1076,15 +1077,16 @@ static int usblp_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct usb_device *dev = interface_to_usbdev (intf); - struct usblp *usblp = NULL; + struct usblp *usblp; int protocol; int retval; /* Malloc and start initializing usblp structure so we can use it * directly. */ - if (!(usblp = kzalloc(sizeof(struct usblp), GFP_KERNEL))) { + usblp = kzalloc(sizeof(struct usblp), GFP_KERNEL); + if (!usblp) { retval = -ENOMEM; - goto abort; + goto abort_ret; } usblp->dev = dev; mutex_init(&usblp->wmut); @@ -1179,12 +1181,11 @@ abort_intfdata: usb_set_intfdata (intf, NULL); device_remove_file(&intf->dev, &dev_attr_ieee1284_id); abort: - if (usblp) { - kfree(usblp->readbuf); - kfree(usblp->statusbuf); - kfree(usblp->device_id_string); - kfree(usblp); - } + kfree(usblp->readbuf); + kfree(usblp->statusbuf); + kfree(usblp->device_id_string); + kfree(usblp); +abort_ret: return retval; } @@ -1345,7 +1346,7 @@ static void usblp_disconnect(struct usb_interface *intf) usb_deregister_dev(intf, &usblp_class); if (!usblp || !usblp->dev) { - err("bogus disconnect"); + dev_err(&intf->dev, "bogus disconnect\n"); BUG (); } diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c new file mode 100644 index 000000000000..543811f6e6e8 --- /dev/null +++ b/drivers/usb/class/usbtmc.c @@ -0,0 +1,1087 @@ +/** + * drivers/usb/class/usbtmc.c - USB Test & Measurment class driver + * + * Copyright (C) 2007 Stefan Kopp, Gechingen, Germany + * Copyright (C) 2008 Novell, Inc. + * Copyright (C) 2008 Greg Kroah-Hartman <gregkh@suse.de> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * The GNU General Public License is available at + * http://www.gnu.org/copyleft/gpl.html. + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/fs.h> +#include <linux/uaccess.h> +#include <linux/kref.h> +#include <linux/mutex.h> +#include <linux/usb.h> +#include <linux/usb/tmc.h> + + +#define USBTMC_MINOR_BASE 176 + +/* + * Size of driver internal IO buffer. Must be multiple of 4 and at least as + * large as wMaxPacketSize (which is usually 512 bytes). + */ +#define USBTMC_SIZE_IOBUFFER 2048 + +/* Default USB timeout (in milliseconds) */ +#define USBTMC_TIMEOUT 10 + +/* + * Maximum number of read cycles to empty bulk in endpoint during CLEAR and + * ABORT_BULK_IN requests. Ends the loop if (for whatever reason) a short + * packet is never read. + */ +#define USBTMC_MAX_READS_TO_CLEAR_BULK_IN 100 + +static struct usb_device_id usbtmc_devices[] = { + { USB_INTERFACE_INFO(USB_CLASS_APP_SPEC, 3, 0), }, + { 0, } /* terminating entry */ +}; + +/* + * This structure is the capabilities for the device + * See section 4.2.1.8 of the USBTMC specification for details. + */ +struct usbtmc_dev_capabilities { + __u8 interface_capabilities; + __u8 device_capabilities; + __u8 usb488_interface_capabilities; + __u8 usb488_device_capabilities; +}; + +/* This structure holds private data for each USBTMC device. One copy is + * allocated for each USBTMC device in the driver's probe function. + */ +struct usbtmc_device_data { + const struct usb_device_id *id; + struct usb_device *usb_dev; + struct usb_interface *intf; + + unsigned int bulk_in; + unsigned int bulk_out; + + u8 bTag; + u8 bTag_last_write; /* needed for abort */ + u8 bTag_last_read; /* needed for abort */ + + /* attributes from the USB TMC spec for this device */ + u8 TermChar; + bool TermCharEnabled; + bool auto_abort; + + struct usbtmc_dev_capabilities capabilities; + struct kref kref; + struct mutex io_mutex; /* only one i/o function running at a time */ +}; +#define to_usbtmc_data(d) container_of(d, struct usbtmc_device_data, kref) + +/* Forward declarations */ +static struct usb_driver usbtmc_driver; + +static void usbtmc_delete(struct kref *kref) +{ + struct usbtmc_device_data *data = to_usbtmc_data(kref); + + usb_put_dev(data->usb_dev); + kfree(data); +} + +static int usbtmc_open(struct inode *inode, struct file *filp) +{ + struct usb_interface *intf; + struct usbtmc_device_data *data; + int retval = -ENODEV; + + intf = usb_find_interface(&usbtmc_driver, iminor(inode)); + if (!intf) { + printk(KERN_ERR KBUILD_MODNAME + ": can not find device for minor %d", iminor(inode)); + goto exit; + } + + data = usb_get_intfdata(intf); + kref_get(&data->kref); + + /* Store pointer in file structure's private data field */ + filp->private_data = data; + +exit: + return retval; +} + +static int usbtmc_release(struct inode *inode, struct file *file) +{ + struct usbtmc_device_data *data = file->private_data; + + kref_put(&data->kref, usbtmc_delete); + return 0; +} + +static int usbtmc_ioctl_abort_bulk_in(struct usbtmc_device_data *data) +{ + char *buffer; + struct device *dev; + int rv; + int n; + int actual; + struct usb_host_interface *current_setting; + int max_size; + + dev = &data->intf->dev; + buffer = kmalloc(USBTMC_SIZE_IOBUFFER, GFP_KERNEL); + if (!buffer) + return -ENOMEM; + + rv = usb_control_msg(data->usb_dev, + usb_rcvctrlpipe(data->usb_dev, 0), + USBTMC_REQUEST_INITIATE_ABORT_BULK_IN, + USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_ENDPOINT, + data->bTag_last_read, data->bulk_in, + buffer, 2, USBTMC_TIMEOUT); + + if (rv < 0) { + dev_err(dev, "usb_control_msg returned %d\n", rv); + goto exit; + } + + dev_dbg(dev, "INITIATE_ABORT_BULK_IN returned %x\n", buffer[0]); + + if (buffer[0] == USBTMC_STATUS_FAILED) { + rv = 0; + goto exit; + } + + if (buffer[0] != USBTMC_STATUS_SUCCESS) { + dev_err(dev, "INITIATE_ABORT_BULK_IN returned %x\n", + buffer[0]); + rv = -EPERM; + goto exit; + } + + max_size = 0; + current_setting = data->intf->cur_altsetting; + for (n = 0; n < current_setting->desc.bNumEndpoints; n++) + if (current_setting->endpoint[n].desc.bEndpointAddress == + data->bulk_in) + max_size = le16_to_cpu(current_setting->endpoint[n]. + desc.wMaxPacketSize); + + if (max_size == 0) { + dev_err(dev, "Couldn't get wMaxPacketSize\n"); + rv = -EPERM; + goto exit; + } + + dev_dbg(&data->intf->dev, "wMaxPacketSize is %d\n", max_size); + + n = 0; + + do { + dev_dbg(dev, "Reading from bulk in EP\n"); + + rv = usb_bulk_msg(data->usb_dev, + usb_rcvbulkpipe(data->usb_dev, + data->bulk_in), + buffer, USBTMC_SIZE_IOBUFFER, + &actual, USBTMC_TIMEOUT); + + n++; + + if (rv < 0) { + dev_err(dev, "usb_bulk_msg returned %d\n", rv); + goto exit; + } + } while ((actual == max_size) && + (n < USBTMC_MAX_READS_TO_CLEAR_BULK_IN)); + + if (actual == max_size) { + dev_err(dev, "Couldn't clear device buffer within %d cycles\n", + USBTMC_MAX_READS_TO_CLEAR_BULK_IN); + rv = -EPERM; + goto exit; + } + + n = 0; + +usbtmc_abort_bulk_in_status: + rv = usb_control_msg(data->usb_dev, + usb_rcvctrlpipe(data->usb_dev, 0), + USBTMC_REQUEST_CHECK_ABORT_BULK_IN_STATUS, + USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_ENDPOINT, + 0, data->bulk_in, buffer, 0x08, + USBTMC_TIMEOUT); + + if (rv < 0) { + dev_err(dev, "usb_control_msg returned %d\n", rv); + goto exit; + } + + dev_dbg(dev, "INITIATE_ABORT_BULK_IN returned %x\n", buffer[0]); + + if (buffer[0] == USBTMC_STATUS_SUCCESS) { + rv = 0; + goto exit; + } + + if (buffer[0] != USBTMC_STATUS_PENDING) { + dev_err(dev, "INITIATE_ABORT_BULK_IN returned %x\n", buffer[0]); + rv = -EPERM; + goto exit; + } + + if (buffer[1] == 1) + do { + dev_dbg(dev, "Reading from bulk in EP\n"); + + rv = usb_bulk_msg(data->usb_dev, + usb_rcvbulkpipe(data->usb_dev, + data->bulk_in), + buffer, USBTMC_SIZE_IOBUFFER, + &actual, USBTMC_TIMEOUT); + + n++; + + if (rv < 0) { + dev_err(dev, "usb_bulk_msg returned %d\n", rv); + goto exit; + } + } while ((actual = max_size) && + (n < USBTMC_MAX_READS_TO_CLEAR_BULK_IN)); + + if (actual == max_size) { + dev_err(dev, "Couldn't clear device buffer within %d cycles\n", + USBTMC_MAX_READS_TO_CLEAR_BULK_IN); + rv = -EPERM; + goto exit; + } + + goto usbtmc_abort_bulk_in_status; + +exit: + kfree(buffer); + return rv; + +} + +static int usbtmc_ioctl_abort_bulk_out(struct usbtmc_device_data *data) +{ + struct device *dev; + u8 *buffer; + int rv; + int n; + + dev = &data->intf->dev; + + buffer = kmalloc(8, GFP_KERNEL); + if (!buffer) + return -ENOMEM; + + rv = usb_control_msg(data->usb_dev, + usb_rcvctrlpipe(data->usb_dev, 0), + USBTMC_REQUEST_INITIATE_ABORT_BULK_OUT, + USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_ENDPOINT, + data->bTag_last_write, data->bulk_out, + buffer, 2, USBTMC_TIMEOUT); + + if (rv < 0) { + dev_err(dev, "usb_control_msg returned %d\n", rv); + goto exit; + } + + dev_dbg(dev, "INITIATE_ABORT_BULK_OUT returned %x\n", buffer[0]); + + if (buffer[0] != USBTMC_STATUS_SUCCESS) { + dev_err(dev, "INITIATE_ABORT_BULK_OUT returned %x\n", + buffer[0]); + rv = -EPERM; + goto exit; + } + + n = 0; + +usbtmc_abort_bulk_out_check_status: + rv = usb_control_msg(data->usb_dev, + usb_rcvctrlpipe(data->usb_dev, 0), + USBTMC_REQUEST_CHECK_ABORT_BULK_OUT_STATUS, + USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_ENDPOINT, + 0, data->bulk_out, buffer, 0x08, + USBTMC_TIMEOUT); + n++; + if (rv < 0) { + dev_err(dev, "usb_control_msg returned %d\n", rv); + goto exit; + } + + dev_dbg(dev, "CHECK_ABORT_BULK_OUT returned %x\n", buffer[0]); + + if (buffer[0] == USBTMC_STATUS_SUCCESS) + goto usbtmc_abort_bulk_out_clear_halt; + + if ((buffer[0] == USBTMC_STATUS_PENDING) && + (n < USBTMC_MAX_READS_TO_CLEAR_BULK_IN)) + goto usbtmc_abort_bulk_out_check_status; + + rv = -EPERM; + goto exit; + +usbtmc_abort_bulk_out_clear_halt: + rv = usb_control_msg(data->usb_dev, + usb_sndctrlpipe(data->usb_dev, 0), + USB_REQ_CLEAR_FEATURE, + USB_DIR_OUT | USB_TYPE_STANDARD | + USB_RECIP_ENDPOINT, + USB_ENDPOINT_HALT, data->bulk_out, buffer, + 0, USBTMC_TIMEOUT); + + if (rv < 0) { + dev_err(dev, "usb_control_msg returned %d\n", rv); + goto exit; + } + rv = 0; + +exit: + kfree(buffer); + return rv; +} + +static ssize_t usbtmc_read(struct file *filp, char __user *buf, + size_t count, loff_t *f_pos) +{ + struct usbtmc_device_data *data; + struct device *dev; + unsigned long int n_characters; + u8 *buffer; + int actual; + int done; + int remaining; + int retval; + int this_part; + + /* Get pointer to private data structure */ + data = filp->private_data; + dev = &data->intf->dev; + + buffer = kmalloc(USBTMC_SIZE_IOBUFFER, GFP_KERNEL); + if (!buffer) + return -ENOMEM; + + mutex_lock(&data->io_mutex); + + remaining = count; + done = 0; + + while (remaining > 0) { + if (remaining > USBTMC_SIZE_IOBUFFER - 12 - 3) + this_part = USBTMC_SIZE_IOBUFFER - 12 - 3; + else + this_part = remaining; + + /* Setup IO buffer for DEV_DEP_MSG_IN message + * Refer to class specs for details + */ + buffer[0] = 2; + buffer[1] = data->bTag; + buffer[2] = ~(data->bTag); + buffer[3] = 0; /* Reserved */ + buffer[4] = (this_part - 12 - 3) & 255; + buffer[5] = ((this_part - 12 - 3) >> 8) & 255; + buffer[6] = ((this_part - 12 - 3) >> 16) & 255; + buffer[7] = ((this_part - 12 - 3) >> 24) & 255; + buffer[8] = data->TermCharEnabled * 2; + /* Use term character? */ + buffer[9] = data->TermChar; + buffer[10] = 0; /* Reserved */ + buffer[11] = 0; /* Reserved */ + + /* Send bulk URB */ + retval = usb_bulk_msg(data->usb_dev, + usb_sndbulkpipe(data->usb_dev, + data->bulk_out), + buffer, 12, &actual, USBTMC_TIMEOUT); + + /* Store bTag (in case we need to abort) */ + data->bTag_last_write = data->bTag; + + /* Increment bTag -- and increment again if zero */ + data->bTag++; + if (!data->bTag) + (data->bTag)++; + + if (retval < 0) { + dev_err(dev, "usb_bulk_msg returned %d\n", retval); + if (data->auto_abort) + usbtmc_ioctl_abort_bulk_out(data); + goto exit; + } + + /* Send bulk URB */ + retval = usb_bulk_msg(data->usb_dev, + usb_rcvbulkpipe(data->usb_dev, + data->bulk_in), + buffer, USBTMC_SIZE_IOBUFFER, &actual, + USBTMC_TIMEOUT); + + /* Store bTag (in case we need to abort) */ + data->bTag_last_read = data->bTag; + + if (retval < 0) { + dev_err(dev, "Unable to read data, error %d\n", retval); + if (data->auto_abort) + usbtmc_ioctl_abort_bulk_in(data); + goto exit; + } + + /* How many characters did the instrument send? */ + n_characters = buffer[4] + + (buffer[5] << 8) + + (buffer[6] << 16) + + (buffer[7] << 24); + + /* Copy buffer to user space */ + if (copy_to_user(buf + done, &buffer[12], n_characters)) { + /* There must have been an addressing problem */ + retval = -EFAULT; + goto exit; + } + + done += n_characters; + if (n_characters < USBTMC_SIZE_IOBUFFER) + remaining = 0; + } + + /* Update file position value */ + *f_pos = *f_pos + done; + retval = done; + +exit: + mutex_unlock(&data->io_mutex); + kfree(buffer); + return retval; +} + +static ssize_t usbtmc_write(struct file *filp, const char __user *buf, + size_t count, loff_t *f_pos) +{ + struct usbtmc_device_data *data; + u8 *buffer; + int retval; + int actual; + unsigned long int n_bytes; + int n; + int remaining; + int done; + int this_part; + + data = filp->private_data; + + buffer = kmalloc(USBTMC_SIZE_IOBUFFER, GFP_KERNEL); + if (!buffer) + return -ENOMEM; + + mutex_lock(&data->io_mutex); + + remaining = count; + done = 0; + + while (remaining > 0) { + if (remaining > USBTMC_SIZE_IOBUFFER - 12) { + this_part = USBTMC_SIZE_IOBUFFER - 12; + buffer[8] = 0; + } else { + this_part = remaining; + buffer[8] = 1; + } + + /* Setup IO buffer for DEV_DEP_MSG_OUT message */ + buffer[0] = 1; + buffer[1] = data->bTag; + buffer[2] = ~(data->bTag); + buffer[3] = 0; /* Reserved */ + buffer[4] = this_part & 255; + buffer[5] = (this_part >> 8) & 255; + buffer[6] = (this_part >> 16) & 255; + buffer[7] = (this_part >> 24) & 255; + /* buffer[8] is set above... */ + buffer[9] = 0; /* Reserved */ + buffer[10] = 0; /* Reserved */ + buffer[11] = 0; /* Reserved */ + + if (copy_from_user(&buffer[12], buf + done, this_part)) { + retval = -EFAULT; + goto exit; + } + + n_bytes = 12 + this_part; + if (this_part % 4) + n_bytes += 4 - this_part % 4; + for (n = 12 + this_part; n < n_bytes; n++) + buffer[n] = 0; + + retval = usb_bulk_msg(data->usb_dev, + usb_sndbulkpipe(data->usb_dev, + data->bulk_out), + buffer, n_bytes, &actual, USBTMC_TIMEOUT); + + data->bTag_last_write = data->bTag; + data->bTag++; + + if (!data->bTag) + data->bTag++; + + if (retval < 0) { + dev_err(&data->intf->dev, + "Unable to send data, error %d\n", retval); + if (data->auto_abort) + usbtmc_ioctl_abort_bulk_out(data); + goto exit; + } + + remaining -= this_part; + done += this_part; + } + + retval = count; +exit: + mutex_unlock(&data->io_mutex); + kfree(buffer); + return retval; +} + +static int usbtmc_ioctl_clear(struct usbtmc_device_data *data) +{ + struct usb_host_interface *current_setting; + struct usb_endpoint_descriptor *desc; + struct device *dev; + u8 *buffer; + int rv; + int n; + int actual; + int max_size; + + dev = &data->intf->dev; + + dev_dbg(dev, "Sending INITIATE_CLEAR request\n"); + + buffer = kmalloc(USBTMC_SIZE_IOBUFFER, GFP_KERNEL); + if (!buffer) + return -ENOMEM; + + rv = usb_control_msg(data->usb_dev, + usb_rcvctrlpipe(data->usb_dev, 0), + USBTMC_REQUEST_INITIATE_CLEAR, + USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0, 0, buffer, 1, USBTMC_TIMEOUT); + if (rv < 0) { + dev_err(dev, "usb_control_msg returned %d\n", rv); + goto exit; + } + + dev_dbg(dev, "INITIATE_CLEAR returned %x\n", buffer[0]); + + if (buffer[0] != USBTMC_STATUS_SUCCESS) { + dev_err(dev, "INITIATE_CLEAR returned %x\n", buffer[0]); + rv = -EPERM; + goto exit; + } + + max_size = 0; + current_setting = data->intf->cur_altsetting; + for (n = 0; n < current_setting->desc.bNumEndpoints; n++) { + desc = ¤t_setting->endpoint[n].desc; + if (desc->bEndpointAddress == data->bulk_in) + max_size = le16_to_cpu(desc->wMaxPacketSize); + } + + if (max_size == 0) { + dev_err(dev, "Couldn't get wMaxPacketSize\n"); + rv = -EPERM; + goto exit; + } + + dev_dbg(dev, "wMaxPacketSize is %d\n", max_size); + + n = 0; + +usbtmc_clear_check_status: + + dev_dbg(dev, "Sending CHECK_CLEAR_STATUS request\n"); + + rv = usb_control_msg(data->usb_dev, + usb_rcvctrlpipe(data->usb_dev, 0), + USBTMC_REQUEST_CHECK_CLEAR_STATUS, + USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0, 0, buffer, 2, USBTMC_TIMEOUT); + if (rv < 0) { + dev_err(dev, "usb_control_msg returned %d\n", rv); + goto exit; + } + + dev_dbg(dev, "CHECK_CLEAR_STATUS returned %x\n", buffer[0]); + + if (buffer[0] == USBTMC_STATUS_SUCCESS) + goto usbtmc_clear_bulk_out_halt; + + if (buffer[0] != USBTMC_STATUS_PENDING) { + dev_err(dev, "CHECK_CLEAR_STATUS returned %x\n", buffer[0]); + rv = -EPERM; + goto exit; + } + + if (buffer[1] == 1) + do { + dev_dbg(dev, "Reading from bulk in EP\n"); + + rv = usb_bulk_msg(data->usb_dev, + usb_rcvbulkpipe(data->usb_dev, + data->bulk_in), + buffer, USBTMC_SIZE_IOBUFFER, + &actual, USBTMC_TIMEOUT); + n++; + + if (rv < 0) { + dev_err(dev, "usb_control_msg returned %d\n", + rv); + goto exit; + } + } while ((actual == max_size) && + (n < USBTMC_MAX_READS_TO_CLEAR_BULK_IN)); + + if (actual == max_size) { + dev_err(dev, "Couldn't clear device buffer within %d cycles\n", + USBTMC_MAX_READS_TO_CLEAR_BULK_IN); + rv = -EPERM; + goto exit; + } + + goto usbtmc_clear_check_status; + +usbtmc_clear_bulk_out_halt: + + rv = usb_control_msg(data->usb_dev, + usb_sndctrlpipe(data->usb_dev, 0), + USB_REQ_CLEAR_FEATURE, + USB_DIR_OUT | USB_TYPE_STANDARD | + USB_RECIP_ENDPOINT, + USB_ENDPOINT_HALT, + data->bulk_out, buffer, 0, + USBTMC_TIMEOUT); + if (rv < 0) { + dev_err(dev, "usb_control_msg returned %d\n", rv); + goto exit; + } + rv = 0; + +exit: + kfree(buffer); + return rv; +} + +static int usbtmc_ioctl_clear_out_halt(struct usbtmc_device_data *data) +{ + u8 *buffer; + int rv; + + buffer = kmalloc(2, GFP_KERNEL); + if (!buffer) + return -ENOMEM; + + rv = usb_control_msg(data->usb_dev, + usb_sndctrlpipe(data->usb_dev, 0), + USB_REQ_CLEAR_FEATURE, + USB_DIR_OUT | USB_TYPE_STANDARD | + USB_RECIP_ENDPOINT, + USB_ENDPOINT_HALT, data->bulk_out, + buffer, 0, USBTMC_TIMEOUT); + + if (rv < 0) { + dev_err(&data->usb_dev->dev, "usb_control_msg returned %d\n", + rv); + goto exit; + } + rv = 0; + +exit: + kfree(buffer); + return rv; +} + +static int usbtmc_ioctl_clear_in_halt(struct usbtmc_device_data *data) +{ + u8 *buffer; + int rv; + + buffer = kmalloc(2, GFP_KERNEL); + if (!buffer) + return -ENOMEM; + + rv = usb_control_msg(data->usb_dev, usb_sndctrlpipe(data->usb_dev, 0), + USB_REQ_CLEAR_FEATURE, + USB_DIR_OUT | USB_TYPE_STANDARD | + USB_RECIP_ENDPOINT, + USB_ENDPOINT_HALT, data->bulk_in, buffer, 0, + USBTMC_TIMEOUT); + + if (rv < 0) { + dev_err(&data->usb_dev->dev, "usb_control_msg returned %d\n", + rv); + goto exit; + } + rv = 0; + +exit: + kfree(buffer); + return rv; +} + +static int get_capabilities(struct usbtmc_device_data *data) +{ + struct device *dev = &data->usb_dev->dev; + char *buffer; + int rv; + + buffer = kmalloc(0x18, GFP_KERNEL); + if (!buffer) + return -ENOMEM; + + rv = usb_control_msg(data->usb_dev, usb_rcvctrlpipe(data->usb_dev, 0), + USBTMC_REQUEST_GET_CAPABILITIES, + USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0, 0, buffer, 0x18, USBTMC_TIMEOUT); + if (rv < 0) { + dev_err(dev, "usb_control_msg returned %d\n", rv); + return rv; + } + + dev_dbg(dev, "GET_CAPABILITIES returned %x\n", buffer[0]); + dev_dbg(dev, "Interface capabilities are %x\n", buffer[4]); + dev_dbg(dev, "Device capabilities are %x\n", buffer[5]); + dev_dbg(dev, "USB488 interface capabilities are %x\n", buffer[14]); + dev_dbg(dev, "USB488 device capabilities are %x\n", buffer[15]); + if (buffer[0] != USBTMC_STATUS_SUCCESS) { + dev_err(dev, "GET_CAPABILITIES returned %x\n", buffer[0]); + return -EPERM; + } + + data->capabilities.interface_capabilities = buffer[4]; + data->capabilities.device_capabilities = buffer[5]; + data->capabilities.usb488_interface_capabilities = buffer[14]; + data->capabilities.usb488_device_capabilities = buffer[15]; + + kfree(buffer); + return 0; +} + +#define capability_attribute(name) \ +static ssize_t show_##name(struct device *dev, \ + struct device_attribute *attr, char *buf) \ +{ \ + struct usb_interface *intf = to_usb_interface(dev); \ + struct usbtmc_device_data *data = usb_get_intfdata(intf); \ + \ + return sprintf(buf, "%d\n", data->capabilities.name); \ +} \ +static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL) + +capability_attribute(interface_capabilities); +capability_attribute(device_capabilities); +capability_attribute(usb488_interface_capabilities); +capability_attribute(usb488_device_capabilities); + +static struct attribute *capability_attrs[] = { + &dev_attr_interface_capabilities.attr, + &dev_attr_device_capabilities.attr, + &dev_attr_usb488_interface_capabilities.attr, + &dev_attr_usb488_device_capabilities.attr, + NULL, +}; + +static struct attribute_group capability_attr_grp = { + .attrs = capability_attrs, +}; + +static ssize_t show_TermChar(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct usb_interface *intf = to_usb_interface(dev); + struct usbtmc_device_data *data = usb_get_intfdata(intf); + + return sprintf(buf, "%c\n", data->TermChar); +} + +static ssize_t store_TermChar(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct usb_interface *intf = to_usb_interface(dev); + struct usbtmc_device_data *data = usb_get_intfdata(intf); + + if (count < 1) + return -EINVAL; + data->TermChar = buf[0]; + return count; +} +static DEVICE_ATTR(TermChar, S_IRUGO, show_TermChar, store_TermChar); + +#define data_attribute(name) \ +static ssize_t show_##name(struct device *dev, \ + struct device_attribute *attr, char *buf) \ +{ \ + struct usb_interface *intf = to_usb_interface(dev); \ + struct usbtmc_device_data *data = usb_get_intfdata(intf); \ + \ + return sprintf(buf, "%d\n", data->name); \ +} \ +static ssize_t store_##name(struct device *dev, \ + struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + struct usb_interface *intf = to_usb_interface(dev); \ + struct usbtmc_device_data *data = usb_get_intfdata(intf); \ + ssize_t result; \ + unsigned val; \ + \ + result = sscanf(buf, "%u\n", &val); \ + if (result != 1) \ + result = -EINVAL; \ + data->name = val; \ + if (result < 0) \ + return result; \ + else \ + return count; \ +} \ +static DEVICE_ATTR(name, S_IRUGO, show_##name, store_##name) + +data_attribute(TermCharEnabled); +data_attribute(auto_abort); + +static struct attribute *data_attrs[] = { + &dev_attr_TermChar.attr, + &dev_attr_TermCharEnabled.attr, + &dev_attr_auto_abort.attr, + NULL, +}; + +static struct attribute_group data_attr_grp = { + .attrs = data_attrs, +}; + +static int usbtmc_ioctl_indicator_pulse(struct usbtmc_device_data *data) +{ + struct device *dev; + u8 *buffer; + int rv; + + dev = &data->intf->dev; + + buffer = kmalloc(2, GFP_KERNEL); + if (!buffer) + return -ENOMEM; + + rv = usb_control_msg(data->usb_dev, + usb_rcvctrlpipe(data->usb_dev, 0), + USBTMC_REQUEST_INDICATOR_PULSE, + USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0, 0, buffer, 0x01, USBTMC_TIMEOUT); + + if (rv < 0) { + dev_err(dev, "usb_control_msg returned %d\n", rv); + goto exit; + } + + dev_dbg(dev, "INDICATOR_PULSE returned %x\n", buffer[0]); + + if (buffer[0] != USBTMC_STATUS_SUCCESS) { + dev_err(dev, "INDICATOR_PULSE returned %x\n", buffer[0]); + rv = -EPERM; + goto exit; + } + rv = 0; + +exit: + kfree(buffer); + return rv; +} + +static long usbtmc_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +{ + struct usbtmc_device_data *data; + int retval = -EBADRQC; + + data = file->private_data; + mutex_lock(&data->io_mutex); + + switch (cmd) { + case USBTMC_IOCTL_CLEAR_OUT_HALT: + retval = usbtmc_ioctl_clear_out_halt(data); + + case USBTMC_IOCTL_CLEAR_IN_HALT: + retval = usbtmc_ioctl_clear_in_halt(data); + + case USBTMC_IOCTL_INDICATOR_PULSE: + retval = usbtmc_ioctl_indicator_pulse(data); + + case USBTMC_IOCTL_CLEAR: + retval = usbtmc_ioctl_clear(data); + + case USBTMC_IOCTL_ABORT_BULK_OUT: + retval = usbtmc_ioctl_abort_bulk_out(data); + + case USBTMC_IOCTL_ABORT_BULK_IN: + retval = usbtmc_ioctl_abort_bulk_in(data); + } + + mutex_unlock(&data->io_mutex); + return retval; +} + +static struct file_operations fops = { + .owner = THIS_MODULE, + .read = usbtmc_read, + .write = usbtmc_write, + .open = usbtmc_open, + .release = usbtmc_release, + .unlocked_ioctl = usbtmc_ioctl, +}; + +static struct usb_class_driver usbtmc_class = { + .name = "usbtmc%d", + .fops = &fops, + .minor_base = USBTMC_MINOR_BASE, +}; + + +static int usbtmc_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct usbtmc_device_data *data; + struct usb_host_interface *iface_desc; + struct usb_endpoint_descriptor *endpoint; + int n; + int retcode; + + dev_dbg(&intf->dev, "%s called\n", __func__); + + data = kmalloc(sizeof(struct usbtmc_device_data), GFP_KERNEL); + if (!data) { + dev_err(&intf->dev, "Unable to allocate kernel memory\n"); + return -ENOMEM; + } + + data->intf = intf; + data->id = id; + data->usb_dev = usb_get_dev(interface_to_usbdev(intf)); + usb_set_intfdata(intf, data); + kref_init(&data->kref); + mutex_init(&data->io_mutex); + + /* Initialize USBTMC bTag and other fields */ + data->bTag = 1; + data->TermCharEnabled = 0; + data->TermChar = '\n'; + + /* USBTMC devices have only one setting, so use that */ + iface_desc = data->intf->cur_altsetting; + + /* Find bulk in endpoint */ + for (n = 0; n < iface_desc->desc.bNumEndpoints; n++) { + endpoint = &iface_desc->endpoint[n].desc; + + if (usb_endpoint_is_bulk_in(endpoint)) { + data->bulk_in = endpoint->bEndpointAddress; + dev_dbg(&intf->dev, "Found bulk in endpoint at %u\n", + data->bulk_in); + break; + } + } + + /* Find bulk out endpoint */ + for (n = 0; n < iface_desc->desc.bNumEndpoints; n++) { + endpoint = &iface_desc->endpoint[n].desc; + + if (usb_endpoint_is_bulk_out(endpoint)) { + data->bulk_out = endpoint->bEndpointAddress; + dev_dbg(&intf->dev, "Found Bulk out endpoint at %u\n", + data->bulk_out); + break; + } + } + + retcode = get_capabilities(data); + if (retcode) + dev_err(&intf->dev, "can't read capabilities\n"); + else + retcode = sysfs_create_group(&intf->dev.kobj, + &capability_attr_grp); + + retcode = sysfs_create_group(&intf->dev.kobj, &data_attr_grp); + + retcode = usb_register_dev(intf, &usbtmc_class); + if (retcode) { + dev_err(&intf->dev, "Not able to get a minor" + " (base %u, slice default): %d\n", USBTMC_MINOR_BASE, + retcode); + goto error_register; + } + dev_dbg(&intf->dev, "Using minor number %d\n", intf->minor); + + return 0; + +error_register: + sysfs_remove_group(&intf->dev.kobj, &capability_attr_grp); + sysfs_remove_group(&intf->dev.kobj, &data_attr_grp); + kref_put(&data->kref, usbtmc_delete); + return retcode; +} + +static void usbtmc_disconnect(struct usb_interface *intf) +{ + struct usbtmc_device_data *data; + + dev_dbg(&intf->dev, "usbtmc_disconnect called\n"); + + data = usb_get_intfdata(intf); + usb_deregister_dev(intf, &usbtmc_class); + sysfs_remove_group(&intf->dev.kobj, &capability_attr_grp); + sysfs_remove_group(&intf->dev.kobj, &data_attr_grp); + kref_put(&data->kref, usbtmc_delete); +} + +static struct usb_driver usbtmc_driver = { + .name = "usbtmc", + .id_table = usbtmc_devices, + .probe = usbtmc_probe, + .disconnect = usbtmc_disconnect +}; + +static int __init usbtmc_init(void) +{ + int retcode; + + retcode = usb_register(&usbtmc_driver); + if (retcode) + printk(KERN_ERR KBUILD_MODNAME": Unable to register driver\n"); + return retcode; +} +module_init(usbtmc_init); + +static void __exit usbtmc_exit(void) +{ + usb_deregister(&usbtmc_driver); +} +module_exit(usbtmc_exit); + +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig index cc9f397e8398..e1759d17ac5d 100644 --- a/drivers/usb/core/Kconfig +++ b/drivers/usb/core/Kconfig @@ -134,5 +134,5 @@ config USB_OTG_BLACKLIST_HUB If you say Y here, then Linux will refuse to enumerate external hubs. OTG hosts are allowed to reduce hardware and software costs by not supporting external hubs. So - are "Emedded Hosts" that don't offer OTG support. + are "Embedded Hosts" that don't offer OTG support. diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 7a4fa791dc19..2bccefebff1b 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -413,7 +413,8 @@ static void driver_disconnect(struct usb_interface *intf) if (likely(ifnum < 8*sizeof(ps->ifclaimed))) clear_bit(ifnum, &ps->ifclaimed); else - warn("interface number %u out of range", ifnum); + dev_warn(&intf->dev, "interface number %u out of range\n", + ifnum); usb_set_intfdata(intf, NULL); @@ -624,6 +625,8 @@ static int usbdev_open(struct inode *inode, struct file *file) smp_wmb(); list_add_tail(&ps->list, &dev->filelist); file->private_data = ps; + snoop(&dev->dev, "opened by process %d: %s\n", task_pid_nr(current), + current->comm); out: if (ret) { kfree(ps); @@ -1774,19 +1777,20 @@ int __init usb_devio_init(void) retval = register_chrdev_region(USB_DEVICE_DEV, USB_DEVICE_MAX, "usb_device"); if (retval) { - err("unable to register minors for usb_device"); + printk(KERN_ERR "Unable to register minors for usb_device\n"); goto out; } cdev_init(&usb_device_cdev, &usbdev_file_operations); retval = cdev_add(&usb_device_cdev, USB_DEVICE_DEV, USB_DEVICE_MAX); if (retval) { - err("unable to get usb_device major %d", USB_DEVICE_MAJOR); + printk(KERN_ERR "Unable to get usb_device major %d\n", + USB_DEVICE_MAJOR); goto error_cdev; } #ifdef CONFIG_USB_DEVICE_CLASS usb_classdev_class = class_create(THIS_MODULE, "usb_device"); if (IS_ERR(usb_classdev_class)) { - err("unable to register usb_device class"); + printk(KERN_ERR "Unable to register usb_device class\n"); retval = PTR_ERR(usb_classdev_class); cdev_del(&usb_device_cdev); usb_classdev_class = NULL; diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 5a7fa6f09958..3d7793d93031 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -1070,7 +1070,8 @@ static int autosuspend_check(struct usb_device *udev, int reschedule) struct usb_driver *driver; driver = to_usb_driver(intf->dev.driver); - if (!driver->reset_resume) + if (!driver->reset_resume || + intf->needs_remote_wakeup) return -EOPNOTSUPP; } } @@ -1609,7 +1610,8 @@ int usb_external_resume_device(struct usb_device *udev) status = usb_resume_both(udev); udev->last_busy = jiffies; usb_pm_unlock(udev); - do_unbind_rebind(udev, DO_REBIND); + if (status == 0) + do_unbind_rebind(udev, DO_REBIND); /* Now that the device is awake, we can start trying to autosuspend * it again. */ diff --git a/drivers/usb/core/endpoint.c b/drivers/usb/core/endpoint.c index 22912136fc14..946fae43d622 100644 --- a/drivers/usb/core/endpoint.c +++ b/drivers/usb/core/endpoint.c @@ -169,7 +169,8 @@ static int usb_endpoint_major_init(void) error = alloc_chrdev_region(&dev, 0, MAX_ENDPOINT_MINORS, "usb_endpoint"); if (error) { - err("unable to get a dynamic major for usb endpoints"); + printk(KERN_ERR "Unable to get a dynamic major for " + "usb endpoints.\n"); return error; } usb_endpoint_major = MAJOR(dev); diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c index 55f7f310924b..997e659ff693 100644 --- a/drivers/usb/core/file.c +++ b/drivers/usb/core/file.c @@ -86,7 +86,7 @@ static int init_usb_class(void) usb_class->class = class_create(THIS_MODULE, "usb"); if (IS_ERR(usb_class->class)) { result = IS_ERR(usb_class->class); - err("class_create failed for usb devices"); + printk(KERN_ERR "class_create failed for usb devices\n"); kfree(usb_class); usb_class = NULL; } @@ -115,7 +115,8 @@ int usb_major_init(void) error = register_chrdev(USB_MAJOR, "usb", &usb_fops); if (error) - err("unable to get major %d for usb devices", USB_MAJOR); + printk(KERN_ERR "Unable to get major %d for usb devices\n", + USB_MAJOR); return error; } diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index c8035a8216bd..fc9018e72a09 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -81,6 +81,10 @@ /*-------------------------------------------------------------------------*/ +/* Keep track of which host controller drivers are loaded */ +unsigned long usb_hcds_loaded; +EXPORT_SYMBOL_GPL(usb_hcds_loaded); + /* host controllers we manage */ LIST_HEAD (usb_bus_list); EXPORT_SYMBOL_GPL (usb_bus_list); diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h index e710ce04e228..2dcde61c465e 100644 --- a/drivers/usb/core/hcd.h +++ b/drivers/usb/core/hcd.h @@ -482,4 +482,10 @@ static inline void usbmon_urb_complete(struct usb_bus *bus, struct urb *urb, */ extern struct rw_semaphore ehci_cf_port_reset_rwsem; +/* Keep track of which host controller drivers are loaded */ +#define USB_UHCI_LOADED 0 +#define USB_OHCI_LOADED 1 +#define USB_EHCI_LOADED 2 +extern unsigned long usb_hcds_loaded; + #endif /* __KERNEL__ */ diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index d99963873e37..9b3f16bd12cb 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -77,6 +77,7 @@ struct usb_hub { unsigned has_indicators:1; u8 indicator[USB_MAXCHILDREN]; struct delayed_work leds; + struct delayed_work init_work; }; @@ -100,6 +101,15 @@ module_param (blinkenlights, bool, S_IRUGO); MODULE_PARM_DESC (blinkenlights, "true to cycle leds on hubs"); /* + * Device SATA8000 FW1.0 from DATAST0R Technology Corp requires about + * 10 seconds to send reply for the initial 64-byte descriptor request. + */ +/* define initial 64-byte descriptor request timeout in milliseconds */ +static int initial_descriptor_timeout = USB_CTRL_GET_TIMEOUT; +module_param(initial_descriptor_timeout, int, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(initial_descriptor_timeout, "initial 64-byte descriptor request timeout in milliseconds (default 5000 - 5.0 seconds)"); + +/* * As of 2.6.10 we introduce a new USB device initialization scheme which * closely resembles the way Windows works. Hopefully it will be compatible * with a wider range of devices than the old scheme. However some previously @@ -515,10 +525,14 @@ void usb_hub_tt_clear_buffer (struct usb_device *udev, int pipe) } EXPORT_SYMBOL_GPL(usb_hub_tt_clear_buffer); -static void hub_power_on(struct usb_hub *hub) +/* If do_delay is false, return the number of milliseconds the caller + * needs to delay. + */ +static unsigned hub_power_on(struct usb_hub *hub, bool do_delay) { int port1; unsigned pgood_delay = hub->descriptor->bPwrOn2PwrGood * 2; + unsigned delay; u16 wHubCharacteristics = le16_to_cpu(hub->descriptor->wHubCharacteristics); @@ -537,7 +551,10 @@ static void hub_power_on(struct usb_hub *hub) set_port_feature(hub->hdev, port1, USB_PORT_FEAT_POWER); /* Wait at least 100 msec for power to become stable */ - msleep(max(pgood_delay, (unsigned) 100)); + delay = max(pgood_delay, (unsigned) 100); + if (do_delay) + msleep(delay); + return delay; } static int hub_hub_status(struct usb_hub *hub, @@ -599,21 +616,55 @@ static void hub_port_logical_disconnect(struct usb_hub *hub, int port1) } enum hub_activation_type { - HUB_INIT, HUB_POST_RESET, HUB_RESUME, HUB_RESET_RESUME + HUB_INIT, HUB_INIT2, HUB_INIT3, + HUB_POST_RESET, HUB_RESUME, HUB_RESET_RESUME, }; +static void hub_init_func2(struct work_struct *ws); +static void hub_init_func3(struct work_struct *ws); + static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) { struct usb_device *hdev = hub->hdev; int port1; int status; bool need_debounce_delay = false; + unsigned delay; + + /* Continue a partial initialization */ + if (type == HUB_INIT2) + goto init2; + if (type == HUB_INIT3) + goto init3; /* After a resume, port power should still be on. * For any other type of activation, turn it on. */ - if (type != HUB_RESUME) - hub_power_on(hub); + if (type != HUB_RESUME) { + + /* Speed up system boot by using a delayed_work for the + * hub's initial power-up delays. This is pretty awkward + * and the implementation looks like a home-brewed sort of + * setjmp/longjmp, but it saves at least 100 ms for each + * root hub (assuming usbcore is compiled into the kernel + * rather than as a module). It adds up. + * + * This can't be done for HUB_RESUME or HUB_RESET_RESUME + * because for those activation types the ports have to be + * operational when we return. In theory this could be done + * for HUB_POST_RESET, but it's easier not to. + */ + if (type == HUB_INIT) { + delay = hub_power_on(hub, false); + PREPARE_DELAYED_WORK(&hub->init_work, hub_init_func2); + schedule_delayed_work(&hub->init_work, + msecs_to_jiffies(delay)); + return; /* Continues at init2: below */ + } else { + hub_power_on(hub, true); + } + } + init2: /* Check each port and set hub->change_bits to let khubd know * which ports need attention. @@ -692,9 +743,20 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) * If any port-status changes do occur during this delay, khubd * will see them later and handle them normally. */ - if (need_debounce_delay) - msleep(HUB_DEBOUNCE_STABLE); - + if (need_debounce_delay) { + delay = HUB_DEBOUNCE_STABLE; + + /* Don't do a long sleep inside a workqueue routine */ + if (type == HUB_INIT2) { + PREPARE_DELAYED_WORK(&hub->init_work, hub_init_func3); + schedule_delayed_work(&hub->init_work, + msecs_to_jiffies(delay)); + return; /* Continues at init3: below */ + } else { + msleep(delay); + } + } + init3: hub->quiescing = 0; status = usb_submit_urb(hub->urb, GFP_NOIO); @@ -707,6 +769,21 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) kick_khubd(hub); } +/* Implement the continuations for the delays above */ +static void hub_init_func2(struct work_struct *ws) +{ + struct usb_hub *hub = container_of(ws, struct usb_hub, init_work.work); + + hub_activate(hub, HUB_INIT2); +} + +static void hub_init_func3(struct work_struct *ws) +{ + struct usb_hub *hub = container_of(ws, struct usb_hub, init_work.work); + + hub_activate(hub, HUB_INIT3); +} + enum hub_quiescing_type { HUB_DISCONNECT, HUB_PRE_RESET, HUB_SUSPEND }; @@ -716,6 +793,8 @@ static void hub_quiesce(struct usb_hub *hub, enum hub_quiescing_type type) struct usb_device *hdev = hub->hdev; int i; + cancel_delayed_work_sync(&hub->init_work); + /* khubd and related activity won't re-trigger */ hub->quiescing = 1; @@ -1099,6 +1178,7 @@ descriptor_error: hub->intfdev = &intf->dev; hub->hdev = hdev; INIT_DELAYED_WORK(&hub->leds, led_work); + INIT_DELAYED_WORK(&hub->init_work, NULL); usb_get_intf(intf); usb_set_intfdata (intf, hub); @@ -2467,7 +2547,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, USB_REQ_GET_DESCRIPTOR, USB_DIR_IN, USB_DT_DEVICE << 8, 0, buf, GET_DESCRIPTOR_BUFSIZE, - USB_CTRL_GET_TIMEOUT); + initial_descriptor_timeout); switch (buf->bMaxPacketSize0) { case 8: case 16: case 32: case 64: case 255: if (buf->bDescriptorType == @@ -3035,7 +3115,7 @@ static void hub_events(void) i); clear_port_feature(hdev, i, USB_PORT_FEAT_C_OVER_CURRENT); - hub_power_on(hub); + hub_power_on(hub, true); } if (portchange & USB_PORT_STAT_C_RESET) { @@ -3070,7 +3150,7 @@ static void hub_events(void) dev_dbg (hub_dev, "overcurrent change\n"); msleep(500); /* Cool down */ clear_hub_feature(hdev, C_HUB_OVER_CURRENT); - hub_power_on(hub); + hub_power_on(hub, true); } } @@ -3424,7 +3504,7 @@ int usb_reset_device(struct usb_device *udev) USB_INTERFACE_BOUND) rebind = 1; } - if (rebind) + if (ret == 0 && rebind) usb_rebind_intf(cintf); } } diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c index 77fa7a080801..94632264dccf 100644 --- a/drivers/usb/core/inode.c +++ b/drivers/usb/core/inode.c @@ -180,8 +180,8 @@ static int parse_options(struct super_block *s, char *data) listmode = option & S_IRWXUGO; break; default: - err("usbfs: unrecognised mount option \"%s\" " - "or missing value\n", p); + printk(KERN_ERR "usbfs: unrecognised mount option " + "\"%s\" or missing value\n", p); return -EINVAL; } } @@ -240,7 +240,9 @@ static void update_sb(struct super_block *sb) update_special(bus); break; default: - warn("Unknown node %s mode %x found on remount!\n",bus->d_name.name,bus->d_inode->i_mode); + printk(KERN_WARNING "usbfs: Unknown node %s " + "mode %x found on remount!\n", + bus->d_name.name, bus->d_inode->i_mode); break; } } @@ -259,7 +261,7 @@ static int remount(struct super_block *sb, int *flags, char *data) return 0; if (parse_options(sb, data)) { - warn("usbfs: mount parameter error:"); + printk(KERN_WARNING "usbfs: mount parameter error.\n"); return -EINVAL; } @@ -599,7 +601,7 @@ static int create_special_files (void) /* create the devices special file */ retval = simple_pin_fs(&usb_fs_type, &usbfs_mount, &usbfs_mount_count); if (retval) { - err ("Unable to get usbfs mount"); + printk(KERN_ERR "Unable to get usbfs mount\n"); goto exit; } @@ -611,7 +613,7 @@ static int create_special_files (void) NULL, &usbfs_devices_fops, listuid, listgid); if (devices_usbfs_dentry == NULL) { - err ("Unable to create devices usbfs file"); + printk(KERN_ERR "Unable to create devices usbfs file\n"); retval = -ENODEV; goto error_clean_mounts; } @@ -663,7 +665,7 @@ static void usbfs_add_bus(struct usb_bus *bus) bus->usbfs_dentry = fs_create_file (name, busmode | S_IFDIR, parent, bus, NULL, busuid, busgid); if (bus->usbfs_dentry == NULL) { - err ("error creating usbfs bus entry"); + printk(KERN_ERR "Error creating usbfs bus entry\n"); return; } } @@ -694,7 +696,7 @@ static void usbfs_add_device(struct usb_device *dev) &usbdev_file_operations, devuid, devgid); if (dev->usbfs_dentry == NULL) { - err ("error creating usbfs device entry"); + printk(KERN_ERR "Error creating usbfs device entry\n"); return; } diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 286b4431a097..887738577b28 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -1204,7 +1204,8 @@ int usb_set_interface(struct usb_device *dev, int interface, int alternate) alt = usb_altnum_to_altsetting(iface, alternate); if (!alt) { - warn("selecting invalid altsetting %d", alternate); + dev_warn(&dev->dev, "selecting invalid altsetting %d", + alternate); return -EINVAL; } diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c index 5e1f5d55bf04..f66fba11fbd5 100644 --- a/drivers/usb/core/sysfs.c +++ b/drivers/usb/core/sysfs.c @@ -743,6 +743,29 @@ static ssize_t show_modalias(struct device *dev, } static DEVICE_ATTR(modalias, S_IRUGO, show_modalias, NULL); +static ssize_t show_supports_autosuspend(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct usb_interface *intf; + struct usb_device *udev; + int ret; + + intf = to_usb_interface(dev); + udev = interface_to_usbdev(intf); + + usb_lock_device(udev); + /* Devices will be autosuspended even when an interface isn't claimed */ + if (!intf->dev.driver || + to_usb_driver(intf->dev.driver)->supports_autosuspend) + ret = sprintf(buf, "%u\n", 1); + else + ret = sprintf(buf, "%u\n", 0); + usb_unlock_device(udev); + + return ret; +} +static DEVICE_ATTR(supports_autosuspend, S_IRUGO, show_supports_autosuspend, NULL); + static struct attribute *intf_attrs[] = { &dev_attr_bInterfaceNumber.attr, &dev_attr_bAlternateSetting.attr, @@ -751,6 +774,7 @@ static struct attribute *intf_attrs[] = { &dev_attr_bInterfaceSubClass.attr, &dev_attr_bInterfaceProtocol.attr, &dev_attr_modalias.attr, + &dev_attr_supports_autosuspend.attr, NULL, }; static struct attribute_group intf_attr_grp = { diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index 47111e88f791..f2638009a464 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -10,6 +10,8 @@ #define to_urb(d) container_of(d, struct urb, kref) +static DEFINE_SPINLOCK(usb_reject_lock); + static void urb_destroy(struct kref *kref) { struct urb *urb = to_urb(kref); @@ -68,7 +70,7 @@ struct urb *usb_alloc_urb(int iso_packets, gfp_t mem_flags) iso_packets * sizeof(struct usb_iso_packet_descriptor), mem_flags); if (!urb) { - err("alloc_urb: kmalloc failed"); + printk(KERN_ERR "alloc_urb: kmalloc failed\n"); return NULL; } usb_init_urb(urb); @@ -127,6 +129,13 @@ void usb_anchor_urb(struct urb *urb, struct usb_anchor *anchor) usb_get_urb(urb); list_add_tail(&urb->anchor_list, &anchor->urb_list); urb->anchor = anchor; + + if (unlikely(anchor->poisoned)) { + spin_lock(&usb_reject_lock); + urb->reject++; + spin_unlock(&usb_reject_lock); + } + spin_unlock_irqrestore(&anchor->lock, flags); } EXPORT_SYMBOL_GPL(usb_anchor_urb); @@ -398,7 +407,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags) /* fail if submitter gave bogus flags */ if (urb->transfer_flags != orig_flags) { - err("BOGUS urb flags, %x --> %x", + dev_err(&dev->dev, "BOGUS urb flags, %x --> %x\n", orig_flags, urb->transfer_flags); return -EINVAL; } @@ -544,25 +553,70 @@ EXPORT_SYMBOL_GPL(usb_unlink_urb); */ void usb_kill_urb(struct urb *urb) { - static DEFINE_MUTEX(reject_mutex); - might_sleep(); if (!(urb && urb->dev && urb->ep)) return; - mutex_lock(&reject_mutex); + spin_lock_irq(&usb_reject_lock); ++urb->reject; - mutex_unlock(&reject_mutex); + spin_unlock_irq(&usb_reject_lock); usb_hcd_unlink_urb(urb, -ENOENT); wait_event(usb_kill_urb_queue, atomic_read(&urb->use_count) == 0); - mutex_lock(&reject_mutex); + spin_lock_irq(&usb_reject_lock); --urb->reject; - mutex_unlock(&reject_mutex); + spin_unlock_irq(&usb_reject_lock); } EXPORT_SYMBOL_GPL(usb_kill_urb); /** + * usb_poison_urb - reliably kill a transfer and prevent further use of an URB + * @urb: pointer to URB describing a previously submitted request, + * may be NULL + * + * This routine cancels an in-progress request. It is guaranteed that + * upon return all completion handlers will have finished and the URB + * will be totally idle and cannot be reused. These features make + * this an ideal way to stop I/O in a disconnect() callback. + * If the request has not already finished or been unlinked + * the completion handler will see urb->status == -ENOENT. + * + * After and while the routine runs, attempts to resubmit the URB will fail + * with error -EPERM. Thus even if the URB's completion handler always + * tries to resubmit, it will not succeed and the URB will become idle. + * + * This routine may not be used in an interrupt context (such as a bottom + * half or a completion handler), or when holding a spinlock, or in other + * situations where the caller can't schedule(). + */ +void usb_poison_urb(struct urb *urb) +{ + might_sleep(); + if (!(urb && urb->dev && urb->ep)) + return; + spin_lock_irq(&usb_reject_lock); + ++urb->reject; + spin_unlock_irq(&usb_reject_lock); + + usb_hcd_unlink_urb(urb, -ENOENT); + wait_event(usb_kill_urb_queue, atomic_read(&urb->use_count) == 0); +} +EXPORT_SYMBOL_GPL(usb_poison_urb); + +void usb_unpoison_urb(struct urb *urb) +{ + unsigned long flags; + + if (!urb) + return; + + spin_lock_irqsave(&usb_reject_lock, flags); + --urb->reject; + spin_unlock_irqrestore(&usb_reject_lock, flags); +} +EXPORT_SYMBOL_GPL(usb_unpoison_urb); + +/** * usb_kill_anchored_urbs - cancel transfer requests en masse * @anchor: anchor the requests are bound to * @@ -589,6 +643,35 @@ void usb_kill_anchored_urbs(struct usb_anchor *anchor) } EXPORT_SYMBOL_GPL(usb_kill_anchored_urbs); + +/** + * usb_poison_anchored_urbs - cease all traffic from an anchor + * @anchor: anchor the requests are bound to + * + * this allows all outstanding URBs to be poisoned starting + * from the back of the queue. Newly added URBs will also be + * poisoned + */ +void usb_poison_anchored_urbs(struct usb_anchor *anchor) +{ + struct urb *victim; + + spin_lock_irq(&anchor->lock); + anchor->poisoned = 1; + while (!list_empty(&anchor->urb_list)) { + victim = list_entry(anchor->urb_list.prev, struct urb, + anchor_list); + /* we must make sure the URB isn't freed before we kill it*/ + usb_get_urb(victim); + spin_unlock_irq(&anchor->lock); + /* this will unanchor the URB */ + usb_poison_urb(victim); + usb_put_urb(victim); + spin_lock_irq(&anchor->lock); + } + spin_unlock_irq(&anchor->lock); +} +EXPORT_SYMBOL_GPL(usb_poison_anchored_urbs); /** * usb_unlink_anchored_urbs - asynchronously cancel transfer requests en masse * @anchor: anchor the requests are bound to @@ -633,3 +716,73 @@ int usb_wait_anchor_empty_timeout(struct usb_anchor *anchor, msecs_to_jiffies(timeout)); } EXPORT_SYMBOL_GPL(usb_wait_anchor_empty_timeout); + +/** + * usb_get_from_anchor - get an anchor's oldest urb + * @anchor: the anchor whose urb you want + * + * this will take the oldest urb from an anchor, + * unanchor and return it + */ +struct urb *usb_get_from_anchor(struct usb_anchor *anchor) +{ + struct urb *victim; + unsigned long flags; + + spin_lock_irqsave(&anchor->lock, flags); + if (!list_empty(&anchor->urb_list)) { + victim = list_entry(anchor->urb_list.next, struct urb, + anchor_list); + usb_get_urb(victim); + spin_unlock_irqrestore(&anchor->lock, flags); + usb_unanchor_urb(victim); + } else { + spin_unlock_irqrestore(&anchor->lock, flags); + victim = NULL; + } + + return victim; +} + +EXPORT_SYMBOL_GPL(usb_get_from_anchor); + +/** + * usb_scuttle_anchored_urbs - unanchor all an anchor's urbs + * @anchor: the anchor whose urbs you want to unanchor + * + * use this to get rid of all an anchor's urbs + */ +void usb_scuttle_anchored_urbs(struct usb_anchor *anchor) +{ + struct urb *victim; + unsigned long flags; + + spin_lock_irqsave(&anchor->lock, flags); + while (!list_empty(&anchor->urb_list)) { + victim = list_entry(anchor->urb_list.prev, struct urb, + anchor_list); + usb_get_urb(victim); + spin_unlock_irqrestore(&anchor->lock, flags); + /* this may free the URB */ + usb_unanchor_urb(victim); + usb_put_urb(victim); + spin_lock_irqsave(&anchor->lock, flags); + } + spin_unlock_irqrestore(&anchor->lock, flags); +} + +EXPORT_SYMBOL_GPL(usb_scuttle_anchored_urbs); + +/** + * usb_anchor_empty - is an anchor empty + * @anchor: the anchor you want to query + * + * returns 1 if the anchor has no urbs associated with it + */ +int usb_anchor_empty(struct usb_anchor *anchor) +{ + return list_empty(&anchor->urb_list); +} + +EXPORT_SYMBOL_GPL(usb_anchor_empty); + diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index acc95b2ac6f8..dd4cd5a51370 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -45,7 +45,7 @@ if USB_GADGET config USB_GADGET_DEBUG boolean "Debugging messages (DEVELOPMENT)" - depends on USB_GADGET && DEBUG_KERNEL + depends on DEBUG_KERNEL help Many controller and gadget drivers will print some debugging messages if you use this option to ask for those messages. @@ -59,7 +59,7 @@ config USB_GADGET_DEBUG config USB_GADGET_DEBUG_FILES boolean "Debugging information files (DEVELOPMENT)" - depends on USB_GADGET && PROC_FS + depends on PROC_FS help Some of the drivers in the "gadget" framework can expose debugging information in files such as /proc/driver/udc @@ -70,7 +70,7 @@ config USB_GADGET_DEBUG_FILES config USB_GADGET_DEBUG_FS boolean "Debugging information files in debugfs (DEVELOPMENT)" - depends on USB_GADGET && DEBUG_FS + depends on DEBUG_FS help Some of the drivers in the "gadget" framework can expose debugging information in files under /sys/kernel/debug/. @@ -79,12 +79,36 @@ config USB_GADGET_DEBUG_FS Enable these files by choosing "Y" here. If in doubt, or to conserve kernel memory, say "N". +config USB_GADGET_VBUS_DRAW + int "Maximum VBUS Power usage (2-500 mA)" + range 2 500 + default 2 + help + Some devices need to draw power from USB when they are + configured, perhaps to operate circuitry or to recharge + batteries. This is in addition to any local power supply, + such as an AC adapter or batteries. + + Enter the maximum power your device draws through USB, in + milliAmperes. The permitted range of values is 2 - 500 mA; + 0 mA would be legal, but can make some hosts misbehave. + + This value will be used except for system-specific gadget + drivers that have more specific information. + config USB_GADGET_SELECTED boolean # # USB Peripheral Controller Support # +# The order here is alphabetical, except that integrated controllers go +# before discrete ones so they will be the initial/default value: +# - integrated/SOC controllers first +# - licensed IP used in both SOC and discrete versions +# - discrete ones (including all PCI-only controllers) +# - debug/dummy gadget+hcd is last. +# choice prompt "USB Peripheral Controller" depends on USB_GADGET @@ -94,26 +118,27 @@ choice Many controller drivers are platform-specific; these often need board-specific hooks. -config USB_GADGET_AMD5536UDC - boolean "AMD5536 UDC" - depends on PCI - select USB_GADGET_DUALSPEED +# +# Integrated controllers +# + +config USB_GADGET_AT91 + boolean "Atmel AT91 USB Device Port" + depends on ARCH_AT91 && !ARCH_AT91SAM9RL && !ARCH_AT91CAP9 + select USB_GADGET_SELECTED help - The AMD5536 UDC is part of the AMD Geode CS5536, an x86 southbridge. - It is a USB Highspeed DMA capable USB device controller. Beside ep0 - it provides 4 IN and 4 OUT endpoints (bulk or interrupt type). - The UDC port supports OTG operation, and may be used as a host port - if it's not being used to implement peripheral or OTG roles. + Many Atmel AT91 processors (such as the AT91RM2000) have a + full speed USB Device Port with support for five configurable + endpoints (plus endpoint zero). Say "y" to link the driver statically, or "m" to build a - dynamically linked module called "amd5536udc" and force all + dynamically linked module called "at91_udc" and force all gadget drivers to also be dynamically linked. -config USB_AMD5536UDC +config USB_AT91 tristate - depends on USB_GADGET_AMD5536UDC + depends on USB_GADGET_AT91 default USB_GADGET - select USB_GADGET_SELECTED config USB_GADGET_ATMEL_USBA boolean "Atmel USBA" @@ -150,28 +175,50 @@ config USB_FSL_USB2 default USB_GADGET select USB_GADGET_SELECTED -config USB_GADGET_NET2280 - boolean "NetChip 228x" - depends on PCI - select USB_GADGET_DUALSPEED +config USB_GADGET_LH7A40X + boolean "LH7A40X" + depends on ARCH_LH7A40X help - NetChip 2280 / 2282 is a PCI based USB peripheral controller which - supports both full and high speed USB 2.0 data transfers. - - It has six configurable endpoints, as well as endpoint zero - (for control transfers) and several endpoints with dedicated - functions. + This driver provides USB Device Controller driver for LH7A40x + +config USB_LH7A40X + tristate + depends on USB_GADGET_LH7A40X + default USB_GADGET + select USB_GADGET_SELECTED + +config USB_GADGET_OMAP + boolean "OMAP USB Device Controller" + depends on ARCH_OMAP + select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_H4_OTG + help + Many Texas Instruments OMAP processors have flexible full + speed USB device controllers, with support for up to 30 + endpoints (plus endpoint zero). This driver supports the + controller in the OMAP 1611, and should work with controllers + in other OMAP processors too, given minor tweaks. Say "y" to link the driver statically, or "m" to build a - dynamically linked module called "net2280" and force all + dynamically linked module called "omap_udc" and force all gadget drivers to also be dynamically linked. -config USB_NET2280 +config USB_OMAP tristate - depends on USB_GADGET_NET2280 + depends on USB_GADGET_OMAP default USB_GADGET select USB_GADGET_SELECTED +config USB_OTG + boolean "OTG Support" + depends on USB_GADGET_OMAP && ARCH_OMAP_OTG && USB_OHCI_HCD + help + The most notable feature of USB OTG is support for a + "Dual-Role" device, which can act as either a device + or a host. The initial role choice can be changed + later, when two dual-role devices talk to each other. + + Select this only if your OMAP board has a Mini-AB connector. + config USB_GADGET_PXA25X boolean "PXA 25x or IXP 4xx" depends on (ARCH_PXA && PXA25x) || ARCH_IXP4XX @@ -203,34 +250,6 @@ config USB_PXA25X_SMALL default y if USB_ETH default y if USB_G_SERIAL -config USB_GADGET_M66592 - boolean "Renesas M66592 USB Peripheral Controller" - select USB_GADGET_DUALSPEED - help - M66592 is a discrete USB peripheral controller chip that - supports both full and high speed USB 2.0 data transfers. - It has seven configurable endpoints, and endpoint zero. - - Say "y" to link the driver statically, or "m" to build a - dynamically linked module called "m66592_udc" and force all - gadget drivers to also be dynamically linked. - -config USB_M66592 - tristate - depends on USB_GADGET_M66592 - default USB_GADGET - select USB_GADGET_SELECTED - -config SUPERH_BUILT_IN_M66592 - boolean "Enable SuperH built-in USB like the M66592" - depends on USB_GADGET_M66592 && CPU_SUBTYPE_SH7722 - help - SH7722 has USB like the M66592. - - The transfer rate is very slow when use "Ethernet Gadget". - However, this problem is improved if change a value of - NET_IP_ALIGN to 4. - config USB_GADGET_PXA27X boolean "PXA 27x" depends on ARCH_PXA && PXA27x @@ -251,40 +270,32 @@ config USB_PXA27X default USB_GADGET select USB_GADGET_SELECTED -config USB_GADGET_GOKU - boolean "Toshiba TC86C001 'Goku-S'" - depends on PCI +config USB_GADGET_S3C2410 + boolean "S3C2410 USB Device Controller" + depends on ARCH_S3C2410 help - The Toshiba TC86C001 is a PCI device which includes controllers - for full speed USB devices, IDE, I2C, SIO, plus a USB host (OHCI). - - The device controller has three configurable (bulk or interrupt) - endpoints, plus endpoint zero (for control transfers). + Samsung's S3C2410 is an ARM-4 processor with an integrated + full speed USB 1.1 device controller. It has 4 configurable + endpoints, as well as endpoint zero (for control transfers). - Say "y" to link the driver statically, or "m" to build a - dynamically linked module called "goku_udc" and to force all - gadget drivers to also be dynamically linked. + This driver has been tested on the S3C2410, S3C2412, and + S3C2440 processors. -config USB_GOKU +config USB_S3C2410 tristate - depends on USB_GADGET_GOKU + depends on USB_GADGET_S3C2410 default USB_GADGET select USB_GADGET_SELECTED +config USB_S3C2410_DEBUG + boolean "S3C2410 udc debug messages" + depends on USB_GADGET_S3C2410 -config USB_GADGET_LH7A40X - boolean "LH7A40X" - depends on ARCH_LH7A40X - help - This driver provides USB Device Controller driver for LH7A40x - -config USB_LH7A40X - tristate - depends on USB_GADGET_LH7A40X - default USB_GADGET - select USB_GADGET_SELECTED +# +# Controllers available in both integrated and discrete versions +# -# built in ../musb along with host support +# musb builds in ../musb along with host support config USB_GADGET_MUSB_HDRC boolean "Inventra HDRC USB Peripheral (TI, ...)" depends on USB_MUSB_HDRC && (USB_MUSB_PERIPHERAL || USB_MUSB_OTG) @@ -294,76 +305,124 @@ config USB_GADGET_MUSB_HDRC This OTG-capable silicon IP is used in dual designs including the TI DaVinci, OMAP 243x, OMAP 343x, and TUSB 6010. -config USB_GADGET_OMAP - boolean "OMAP USB Device Controller" - depends on ARCH_OMAP - select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 +config USB_GADGET_M66592 + boolean "Renesas M66592 USB Peripheral Controller" + select USB_GADGET_DUALSPEED help - Many Texas Instruments OMAP processors have flexible full - speed USB device controllers, with support for up to 30 - endpoints (plus endpoint zero). This driver supports the - controller in the OMAP 1611, and should work with controllers - in other OMAP processors too, given minor tweaks. + M66592 is a discrete USB peripheral controller chip that + supports both full and high speed USB 2.0 data transfers. + It has seven configurable endpoints, and endpoint zero. Say "y" to link the driver statically, or "m" to build a - dynamically linked module called "omap_udc" and force all + dynamically linked module called "m66592_udc" and force all gadget drivers to also be dynamically linked. -config USB_OMAP +config USB_M66592 tristate - depends on USB_GADGET_OMAP + depends on USB_GADGET_M66592 default USB_GADGET select USB_GADGET_SELECTED -config USB_OTG - boolean "OTG Support" - depends on USB_GADGET_OMAP && ARCH_OMAP_OTG && USB_OHCI_HCD +config SUPERH_BUILT_IN_M66592 + boolean "Enable SuperH built-in USB like the M66592" + depends on USB_GADGET_M66592 && CPU_SUBTYPE_SH7722 help - The most notable feature of USB OTG is support for a - "Dual-Role" device, which can act as either a device - or a host. The initial role choice can be changed - later, when two dual-role devices talk to each other. + SH7722 has USB like the M66592. - Select this only if your OMAP board has a Mini-AB connector. + The transfer rate is very slow when use "Ethernet Gadget". + However, this problem is improved if change a value of + NET_IP_ALIGN to 4. -config USB_GADGET_S3C2410 - boolean "S3C2410 USB Device Controller" - depends on ARCH_S3C2410 +# +# Controllers available only in discrete form (and all PCI controllers) +# + +config USB_GADGET_AMD5536UDC + boolean "AMD5536 UDC" + depends on PCI + select USB_GADGET_DUALSPEED help - Samsung's S3C2410 is an ARM-4 processor with an integrated - full speed USB 1.1 device controller. It has 4 configurable - endpoints, as well as endpoint zero (for control transfers). + The AMD5536 UDC is part of the AMD Geode CS5536, an x86 southbridge. + It is a USB Highspeed DMA capable USB device controller. Beside ep0 + it provides 4 IN and 4 OUT endpoints (bulk or interrupt type). + The UDC port supports OTG operation, and may be used as a host port + if it's not being used to implement peripheral or OTG roles. - This driver has been tested on the S3C2410, S3C2412, and - S3C2440 processors. + Say "y" to link the driver statically, or "m" to build a + dynamically linked module called "amd5536udc" and force all + gadget drivers to also be dynamically linked. -config USB_S3C2410 +config USB_AMD5536UDC tristate - depends on USB_GADGET_S3C2410 + depends on USB_GADGET_AMD5536UDC default USB_GADGET select USB_GADGET_SELECTED -config USB_S3C2410_DEBUG - boolean "S3C2410 udc debug messages" - depends on USB_GADGET_S3C2410 +config USB_GADGET_FSL_QE + boolean "Freescale QE/CPM USB Device Controller" + depends on FSL_SOC && (QUICC_ENGINE || CPM) + help + Some of Freescale PowerPC processors have a Full Speed + QE/CPM2 USB controller, which support device mode with 4 + programmable endpoints. This driver supports the + controller in the MPC8360 and MPC8272, and should work with + controllers having QE or CPM2, given minor tweaks. -config USB_GADGET_AT91 - boolean "AT91 USB Device Port" - depends on ARCH_AT91 && !ARCH_AT91SAM9RL && !ARCH_AT91CAP9 + Set CONFIG_USB_GADGET to "m" to build this driver as a + dynmically linked module called "fsl_qe_udc". + +config USB_FSL_QE + tristate + depends on USB_GADGET_FSL_QE + default USB_GADGET select USB_GADGET_SELECTED + +config USB_GADGET_NET2280 + boolean "NetChip 228x" + depends on PCI + select USB_GADGET_DUALSPEED help - Many Atmel AT91 processors (such as the AT91RM2000) have a - full speed USB Device Port with support for five configurable - endpoints (plus endpoint zero). + NetChip 2280 / 2282 is a PCI based USB peripheral controller which + supports both full and high speed USB 2.0 data transfers. + + It has six configurable endpoints, as well as endpoint zero + (for control transfers) and several endpoints with dedicated + functions. Say "y" to link the driver statically, or "m" to build a - dynamically linked module called "at91_udc" and force all + dynamically linked module called "net2280" and force all gadget drivers to also be dynamically linked. -config USB_AT91 +config USB_NET2280 tristate - depends on USB_GADGET_AT91 + depends on USB_GADGET_NET2280 + default USB_GADGET + select USB_GADGET_SELECTED + +config USB_GADGET_GOKU + boolean "Toshiba TC86C001 'Goku-S'" + depends on PCI + help + The Toshiba TC86C001 is a PCI device which includes controllers + for full speed USB devices, IDE, I2C, SIO, plus a USB host (OHCI). + + The device controller has three configurable (bulk or interrupt) + endpoints, plus endpoint zero (for control transfers). + + Say "y" to link the driver statically, or "m" to build a + dynamically linked module called "goku_udc" and to force all + gadget drivers to also be dynamically linked. + +config USB_GOKU + tristate + depends on USB_GADGET_GOKU default USB_GADGET + select USB_GADGET_SELECTED + + +# +# LAST -- dummy/emulated controller +# config USB_GADGET_DUMMY_HCD boolean "Dummy HCD (DEVELOPMENT)" @@ -553,19 +612,23 @@ config USB_FILE_STORAGE_TEST normal operation. config USB_G_SERIAL - tristate "Serial Gadget (with CDC ACM support)" + tristate "Serial Gadget (with CDC ACM and CDC OBEX support)" help The Serial Gadget talks to the Linux-USB generic serial driver. This driver supports a CDC-ACM module option, which can be used to interoperate with MS-Windows hosts or with the Linux-USB "cdc-acm" driver. + This driver also supports a CDC-OBEX option. You will need a + user space OBEX server talking to /dev/ttyGS*, since the kernel + itself doesn't implement the OBEX protocol. + Say "y" to link the driver statically, or "m" to build a dynamically linked module called "g_serial". For more information, see Documentation/usb/gadget_serial.txt which includes instructions and a "driver info file" needed to - make MS-Windows work with this driver. + make MS-Windows work with CDC ACM. config USB_MIDI_GADGET tristate "MIDI Gadget (EXPERIMENTAL)" diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile index 2267fa0b51b2..bd4041b47dce 100644 --- a/drivers/usb/gadget/Makefile +++ b/drivers/usb/gadget/Makefile @@ -18,6 +18,7 @@ obj-$(CONFIG_USB_AT91) += at91_udc.o obj-$(CONFIG_USB_ATMEL_USBA) += atmel_usba_udc.o obj-$(CONFIG_USB_FSL_USB2) += fsl_usb2_udc.o obj-$(CONFIG_USB_M66592) += m66592-udc.o +obj-$(CONFIG_USB_FSL_QE) += fsl_qe_udc.o # # USB gadget drivers diff --git a/drivers/usb/gadget/cdc2.c b/drivers/usb/gadget/cdc2.c index a724fc149850..5495b171cf29 100644 --- a/drivers/usb/gadget/cdc2.c +++ b/drivers/usb/gadget/cdc2.c @@ -155,7 +155,6 @@ static struct usb_configuration cdc_config_driver = { .bConfigurationValue = 1, /* .iConfiguration = DYNAMIC */ .bmAttributes = USB_CONFIG_ATT_SELFPOWER, - .bMaxPower = 1, /* 2 mA, minimal */ }; /*-------------------------------------------------------------------------*/ diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index 85c876c1f150..f2da0269e1b1 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -128,6 +128,70 @@ done: } /** + * usb_function_deactivate - prevent function and gadget enumeration + * @function: the function that isn't yet ready to respond + * + * Blocks response of the gadget driver to host enumeration by + * preventing the data line pullup from being activated. This is + * normally called during @bind() processing to change from the + * initial "ready to respond" state, or when a required resource + * becomes available. + * + * For example, drivers that serve as a passthrough to a userspace + * daemon can block enumeration unless that daemon (such as an OBEX, + * MTP, or print server) is ready to handle host requests. + * + * Not all systems support software control of their USB peripheral + * data pullups. + * + * Returns zero on success, else negative errno. + */ +int usb_function_deactivate(struct usb_function *function) +{ + struct usb_composite_dev *cdev = function->config->cdev; + int status = 0; + + spin_lock(&cdev->lock); + + if (cdev->deactivations == 0) + status = usb_gadget_disconnect(cdev->gadget); + if (status == 0) + cdev->deactivations++; + + spin_unlock(&cdev->lock); + return status; +} + +/** + * usb_function_activate - allow function and gadget enumeration + * @function: function on which usb_function_activate() was called + * + * Reverses effect of usb_function_deactivate(). If no more functions + * are delaying their activation, the gadget driver will respond to + * host enumeration procedures. + * + * Returns zero on success, else negative errno. + */ +int usb_function_activate(struct usb_function *function) +{ + struct usb_composite_dev *cdev = function->config->cdev; + int status = 0; + + spin_lock(&cdev->lock); + + if (WARN_ON(cdev->deactivations == 0)) + status = -EINVAL; + else { + cdev->deactivations--; + if (cdev->deactivations == 0) + status = usb_gadget_connect(cdev->gadget); + } + + spin_unlock(&cdev->lock); + return status; +} + +/** * usb_interface_id() - allocate an unused interface ID * @config: configuration associated with the interface * @function: function handling the interface @@ -181,7 +245,7 @@ static int config_buf(struct usb_configuration *config, c->bConfigurationValue = config->bConfigurationValue; c->iConfiguration = config->iConfiguration; c->bmAttributes = USB_CONFIG_ATT_ONE | config->bmAttributes; - c->bMaxPower = config->bMaxPower; + c->bMaxPower = config->bMaxPower ? : (CONFIG_USB_GADGET_VBUS_DRAW / 2); /* There may be e.g. OTG descriptors */ if (config->descriptors) { @@ -368,7 +432,7 @@ static int set_config(struct usb_composite_dev *cdev, } /* when we return, be sure our power usage is valid */ - power = 2 * c->bMaxPower; + power = c->bMaxPower ? (2 * c->bMaxPower) : CONFIG_USB_GADGET_VBUS_DRAW; done: usb_gadget_vbus_draw(gadget, power); return result; diff --git a/drivers/usb/gadget/config.c b/drivers/usb/gadget/config.c index 1ca1c326392a..e1191b9a316a 100644 --- a/drivers/usb/gadget/config.c +++ b/drivers/usb/gadget/config.c @@ -168,7 +168,7 @@ usb_copy_descriptors(struct usb_descriptor_header **src) * usb_find_endpoint - find a copy of an endpoint descriptor * @src: original vector of descriptors * @copy: copy of @src - * @ep: endpoint descriptor found in @src + * @match: endpoint descriptor found in @src * * This returns the copy of the @match descriptor made for @copy. Its * intended use is to help remembering the endpoint descriptor to use diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index 7600a0c78753..9064696636ac 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -82,6 +82,7 @@ struct dummy_ep { const struct usb_endpoint_descriptor *desc; struct usb_ep ep; unsigned halted : 1; + unsigned wedged : 1; unsigned already_seen : 1; unsigned setup_stage : 1; }; @@ -436,6 +437,7 @@ dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) /* at this point real hardware should be NAKing transfers * to that endpoint, until a buffer is queued to it. */ + ep->halted = ep->wedged = 0; retval = 0; done: return retval; @@ -597,7 +599,7 @@ static int dummy_dequeue (struct usb_ep *_ep, struct usb_request *_req) } static int -dummy_set_halt (struct usb_ep *_ep, int value) +dummy_set_halt_and_wedge(struct usb_ep *_ep, int value, int wedged) { struct dummy_ep *ep; struct dummy *dum; @@ -609,16 +611,32 @@ dummy_set_halt (struct usb_ep *_ep, int value) if (!dum->driver) return -ESHUTDOWN; if (!value) - ep->halted = 0; + ep->halted = ep->wedged = 0; else if (ep->desc && (ep->desc->bEndpointAddress & USB_DIR_IN) && !list_empty (&ep->queue)) return -EAGAIN; - else + else { ep->halted = 1; + if (wedged) + ep->wedged = 1; + } /* FIXME clear emulated data toggle too */ return 0; } +static int +dummy_set_halt(struct usb_ep *_ep, int value) +{ + return dummy_set_halt_and_wedge(_ep, value, 0); +} + +static int dummy_set_wedge(struct usb_ep *_ep) +{ + if (!_ep || _ep->name == ep0name) + return -EINVAL; + return dummy_set_halt_and_wedge(_ep, 1, 1); +} + static const struct usb_ep_ops dummy_ep_ops = { .enable = dummy_enable, .disable = dummy_disable, @@ -630,6 +648,7 @@ static const struct usb_ep_ops dummy_ep_ops = { .dequeue = dummy_dequeue, .set_halt = dummy_set_halt, + .set_wedge = dummy_set_wedge, }; /*-------------------------------------------------------------------------*/ @@ -760,7 +779,8 @@ usb_gadget_register_driver (struct usb_gadget_driver *driver) ep->ep.name = ep_name [i]; ep->ep.ops = &dummy_ep_ops; list_add_tail (&ep->ep.ep_list, &dum->gadget.ep_list); - ep->halted = ep->already_seen = ep->setup_stage = 0; + ep->halted = ep->wedged = ep->already_seen = + ep->setup_stage = 0; ep->ep.maxpacket = ~0; ep->last_io = jiffies; ep->gadget = &dum->gadget; @@ -1351,7 +1371,7 @@ restart: } else if (setup.bRequestType == Ep_Request) { // endpoint halt ep2 = find_endpoint (dum, w_index); - if (!ep2) { + if (!ep2 || ep2->ep.name == ep0name) { value = -EOPNOTSUPP; break; } @@ -1380,7 +1400,8 @@ restart: value = -EOPNOTSUPP; break; } - ep2->halted = 0; + if (!ep2->wedged) + ep2->halted = 0; value = 0; status = 0; } diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c index 944c8e889ab4..37252d0012a7 100644 --- a/drivers/usb/gadget/ether.c +++ b/drivers/usb/gadget/ether.c @@ -242,7 +242,6 @@ static struct usb_configuration rndis_config_driver = { .bConfigurationValue = 2, /* .iConfiguration = DYNAMIC */ .bmAttributes = USB_CONFIG_ATT_SELFPOWER, - .bMaxPower = 1, /* 2 mA, minimal */ }; /*-------------------------------------------------------------------------*/ @@ -271,7 +270,6 @@ static struct usb_configuration eth_config_driver = { .bConfigurationValue = 1, /* .iConfiguration = DYNAMIC */ .bmAttributes = USB_CONFIG_ATT_SELFPOWER, - .bMaxPower = 1, /* 2 mA, minimal */ }; /*-------------------------------------------------------------------------*/ diff --git a/drivers/usb/gadget/f_loopback.c b/drivers/usb/gadget/f_loopback.c index 87dde012dacc..8affe1dfc2c1 100644 --- a/drivers/usb/gadget/f_loopback.c +++ b/drivers/usb/gadget/f_loopback.c @@ -352,7 +352,6 @@ static struct usb_configuration loopback_driver = { .bind = loopback_bind_config, .bConfigurationValue = 2, .bmAttributes = USB_CONFIG_ATT_SELFPOWER, - .bMaxPower = 1, /* 2 mA, minimal */ /* .iConfiguration = DYNAMIC */ }; diff --git a/drivers/usb/gadget/f_obex.c b/drivers/usb/gadget/f_obex.c new file mode 100644 index 000000000000..80c2e7e9622f --- /dev/null +++ b/drivers/usb/gadget/f_obex.c @@ -0,0 +1,493 @@ +/* + * f_obex.c -- USB CDC OBEX function driver + * + * Copyright (C) 2008 Nokia Corporation + * Contact: Felipe Balbi <felipe.balbi@nokia.com> + * + * Based on f_acm.c by Al Borchers and David Brownell. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/* #define VERBOSE_DEBUG */ + +#include <linux/kernel.h> +#include <linux/utsname.h> +#include <linux/device.h> + +#include "u_serial.h" +#include "gadget_chips.h" + + +/* + * This CDC OBEX function support just packages a TTY-ish byte stream. + * A user mode server will put it into "raw" mode and handle all the + * relevant protocol details ... this is just a kernel passthrough. + * When possible, we prevent gadget enumeration until that server is + * ready to handle the commands. + */ + +struct obex_ep_descs { + struct usb_endpoint_descriptor *obex_in; + struct usb_endpoint_descriptor *obex_out; +}; + +struct f_obex { + struct gserial port; + u8 ctrl_id; + u8 data_id; + u8 port_num; + u8 can_activate; + + struct obex_ep_descs fs; + struct obex_ep_descs hs; +}; + +static inline struct f_obex *func_to_obex(struct usb_function *f) +{ + return container_of(f, struct f_obex, port.func); +} + +static inline struct f_obex *port_to_obex(struct gserial *p) +{ + return container_of(p, struct f_obex, port); +} + +/*-------------------------------------------------------------------------*/ + +#define OBEX_CTRL_IDX 0 +#define OBEX_DATA_IDX 1 + +static struct usb_string obex_string_defs[] = { + [OBEX_CTRL_IDX].s = "CDC Object Exchange (OBEX)", + [OBEX_DATA_IDX].s = "CDC OBEX Data", + { }, /* end of list */ +}; + +static struct usb_gadget_strings obex_string_table = { + .language = 0x0409, /* en-US */ + .strings = obex_string_defs, +}; + +static struct usb_gadget_strings *obex_strings[] = { + &obex_string_table, + NULL, +}; + +/*-------------------------------------------------------------------------*/ + +static struct usb_interface_descriptor obex_control_intf __initdata = { + .bLength = sizeof(obex_control_intf), + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 0, + + .bAlternateSetting = 0, + .bNumEndpoints = 0, + .bInterfaceClass = USB_CLASS_COMM, + .bInterfaceSubClass = USB_CDC_SUBCLASS_OBEX, +}; + +static struct usb_interface_descriptor obex_data_nop_intf __initdata = { + .bLength = sizeof(obex_data_nop_intf), + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 1, + + .bAlternateSetting = 0, + .bNumEndpoints = 0, + .bInterfaceClass = USB_CLASS_CDC_DATA, +}; + +static struct usb_interface_descriptor obex_data_intf __initdata = { + .bLength = sizeof(obex_data_intf), + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = 2, + + .bAlternateSetting = 1, + .bNumEndpoints = 2, + .bInterfaceClass = USB_CLASS_CDC_DATA, +}; + +static struct usb_cdc_header_desc obex_cdc_header_desc __initdata = { + .bLength = sizeof(obex_cdc_header_desc), + .bDescriptorType = USB_DT_CS_INTERFACE, + .bDescriptorSubType = USB_CDC_HEADER_TYPE, + .bcdCDC = __constant_cpu_to_le16(0x0120), +}; + +static struct usb_cdc_union_desc obex_cdc_union_desc __initdata = { + .bLength = sizeof(obex_cdc_union_desc), + .bDescriptorType = USB_DT_CS_INTERFACE, + .bDescriptorSubType = USB_CDC_UNION_TYPE, + .bMasterInterface0 = 1, + .bSlaveInterface0 = 2, +}; + +static struct usb_cdc_obex_desc obex_desc __initdata = { + .bLength = sizeof(obex_desc), + .bDescriptorType = USB_DT_CS_INTERFACE, + .bDescriptorSubType = USB_CDC_OBEX_TYPE, + .bcdVersion = __constant_cpu_to_le16(0x0100), +}; + +/* High-Speed Support */ + +static struct usb_endpoint_descriptor obex_hs_ep_out_desc __initdata = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = USB_DIR_OUT, + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = __constant_cpu_to_le16(512), +}; + +static struct usb_endpoint_descriptor obex_hs_ep_in_desc __initdata = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = USB_DIR_IN, + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = __constant_cpu_to_le16(512), +}; + +static struct usb_descriptor_header *hs_function[] __initdata = { + (struct usb_descriptor_header *) &obex_control_intf, + (struct usb_descriptor_header *) &obex_cdc_header_desc, + (struct usb_descriptor_header *) &obex_desc, + (struct usb_descriptor_header *) &obex_cdc_union_desc, + + (struct usb_descriptor_header *) &obex_data_nop_intf, + (struct usb_descriptor_header *) &obex_data_intf, + (struct usb_descriptor_header *) &obex_hs_ep_in_desc, + (struct usb_descriptor_header *) &obex_hs_ep_out_desc, + NULL, +}; + +/* Full-Speed Support */ + +static struct usb_endpoint_descriptor obex_fs_ep_in_desc __initdata = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = USB_DIR_IN, + .bmAttributes = USB_ENDPOINT_XFER_BULK, +}; + +static struct usb_endpoint_descriptor obex_fs_ep_out_desc __initdata = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = USB_DIR_OUT, + .bmAttributes = USB_ENDPOINT_XFER_BULK, +}; + +static struct usb_descriptor_header *fs_function[] __initdata = { + (struct usb_descriptor_header *) &obex_control_intf, + (struct usb_descriptor_header *) &obex_cdc_header_desc, + (struct usb_descriptor_header *) &obex_desc, + (struct usb_descriptor_header *) &obex_cdc_union_desc, + + (struct usb_descriptor_header *) &obex_data_nop_intf, + (struct usb_descriptor_header *) &obex_data_intf, + (struct usb_descriptor_header *) &obex_fs_ep_in_desc, + (struct usb_descriptor_header *) &obex_fs_ep_out_desc, + NULL, +}; + +/*-------------------------------------------------------------------------*/ + +static int obex_set_alt(struct usb_function *f, unsigned intf, unsigned alt) +{ + struct f_obex *obex = func_to_obex(f); + struct usb_composite_dev *cdev = f->config->cdev; + + if (intf == obex->ctrl_id) { + if (alt != 0) + goto fail; + /* NOP */ + DBG(cdev, "reset obex ttyGS%d control\n", obex->port_num); + + } else if (intf == obex->data_id) { + if (alt > 1) + goto fail; + + if (obex->port.in->driver_data) { + DBG(cdev, "reset obex ttyGS%d\n", obex->port_num); + gserial_disconnect(&obex->port); + } + + if (!obex->port.in_desc) { + DBG(cdev, "init obex ttyGS%d\n", obex->port_num); + obex->port.in_desc = ep_choose(cdev->gadget, + obex->hs.obex_in, obex->fs.obex_in); + obex->port.out_desc = ep_choose(cdev->gadget, + obex->hs.obex_out, obex->fs.obex_out); + } + + if (alt == 1) { + DBG(cdev, "activate obex ttyGS%d\n", obex->port_num); + gserial_connect(&obex->port, obex->port_num); + } + + } else + goto fail; + + return 0; + +fail: + return -EINVAL; +} + +static int obex_get_alt(struct usb_function *f, unsigned intf) +{ + struct f_obex *obex = func_to_obex(f); + + if (intf == obex->ctrl_id) + return 0; + + return obex->port.in->driver_data ? 1 : 0; +} + +static void obex_disable(struct usb_function *f) +{ + struct f_obex *obex = func_to_obex(f); + struct usb_composite_dev *cdev = f->config->cdev; + + DBG(cdev, "obex ttyGS%d disable\n", obex->port_num); + gserial_disconnect(&obex->port); +} + +/*-------------------------------------------------------------------------*/ + +static void obex_connect(struct gserial *g) +{ + struct f_obex *obex = port_to_obex(g); + struct usb_composite_dev *cdev = g->func.config->cdev; + int status; + + if (!obex->can_activate) + return; + + status = usb_function_activate(&g->func); + if (status) + DBG(cdev, "obex ttyGS%d function activate --> %d\n", + obex->port_num, status); +} + +static void obex_disconnect(struct gserial *g) +{ + struct f_obex *obex = port_to_obex(g); + struct usb_composite_dev *cdev = g->func.config->cdev; + int status; + + if (!obex->can_activate) + return; + + status = usb_function_deactivate(&g->func); + if (status) + DBG(cdev, "obex ttyGS%d function deactivate --> %d\n", + obex->port_num, status); +} + +/*-------------------------------------------------------------------------*/ + +static int __init +obex_bind(struct usb_configuration *c, struct usb_function *f) +{ + struct usb_composite_dev *cdev = c->cdev; + struct f_obex *obex = func_to_obex(f); + int status; + struct usb_ep *ep; + + /* allocate instance-specific interface IDs, and patch descriptors */ + + status = usb_interface_id(c, f); + if (status < 0) + goto fail; + obex->ctrl_id = status; + + obex_control_intf.bInterfaceNumber = status; + obex_cdc_union_desc.bMasterInterface0 = status; + + status = usb_interface_id(c, f); + if (status < 0) + goto fail; + obex->data_id = status; + + obex_data_nop_intf.bInterfaceNumber = status; + obex_data_intf.bInterfaceNumber = status; + obex_cdc_union_desc.bSlaveInterface0 = status; + + /* allocate instance-specific endpoints */ + + ep = usb_ep_autoconfig(cdev->gadget, &obex_fs_ep_in_desc); + if (!ep) + goto fail; + obex->port.in = ep; + ep->driver_data = cdev; /* claim */ + + ep = usb_ep_autoconfig(cdev->gadget, &obex_fs_ep_out_desc); + if (!ep) + goto fail; + obex->port.out = ep; + ep->driver_data = cdev; /* claim */ + + /* copy descriptors, and track endpoint copies */ + f->descriptors = usb_copy_descriptors(fs_function); + + obex->fs.obex_in = usb_find_endpoint(fs_function, + f->descriptors, &obex_fs_ep_in_desc); + obex->fs.obex_out = usb_find_endpoint(fs_function, + f->descriptors, &obex_fs_ep_out_desc); + + /* support all relevant hardware speeds... we expect that when + * hardware is dual speed, all bulk-capable endpoints work at + * both speeds + */ + if (gadget_is_dualspeed(c->cdev->gadget)) { + + obex_hs_ep_in_desc.bEndpointAddress = + obex_fs_ep_in_desc.bEndpointAddress; + obex_hs_ep_out_desc.bEndpointAddress = + obex_fs_ep_out_desc.bEndpointAddress; + + /* copy descriptors, and track endpoint copies */ + f->hs_descriptors = usb_copy_descriptors(hs_function); + + obex->hs.obex_in = usb_find_endpoint(hs_function, + f->descriptors, &obex_hs_ep_in_desc); + obex->hs.obex_out = usb_find_endpoint(hs_function, + f->descriptors, &obex_hs_ep_out_desc); + } + + /* Avoid letting this gadget enumerate until the userspace + * OBEX server is active. + */ + status = usb_function_deactivate(f); + if (status < 0) + WARNING(cdev, "obex ttyGS%d: can't prevent enumeration, %d\n", + obex->port_num, status); + else + obex->can_activate = true; + + + DBG(cdev, "obex ttyGS%d: %s speed IN/%s OUT/%s\n", + obex->port_num, + gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full", + obex->port.in->name, obex->port.out->name); + + return 0; + +fail: + /* we might as well release our claims on endpoints */ + if (obex->port.out) + obex->port.out->driver_data = NULL; + if (obex->port.in) + obex->port.in->driver_data = NULL; + + ERROR(cdev, "%s/%p: can't bind, err %d\n", f->name, f, status); + + return status; +} + +static void +obex_unbind(struct usb_configuration *c, struct usb_function *f) +{ + if (gadget_is_dualspeed(c->cdev->gadget)) + usb_free_descriptors(f->hs_descriptors); + usb_free_descriptors(f->descriptors); + kfree(func_to_obex(f)); +} + +/* Some controllers can't support CDC OBEX ... */ +static inline bool can_support_obex(struct usb_configuration *c) +{ + /* Since the first interface is a NOP, we can ignore the + * issue of multi-interface support on most controllers. + * + * Altsettings are mandatory, however... + */ + if (!gadget_supports_altsettings(c->cdev->gadget)) + return false; + + /* everything else is *probably* fine ... */ + return true; +} + +/** + * obex_bind_config - add a CDC OBEX function to a configuration + * @c: the configuration to support the CDC OBEX instance + * @port_num: /dev/ttyGS* port this interface will use + * Context: single threaded during gadget setup + * + * Returns zero on success, else negative errno. + * + * Caller must have called @gserial_setup() with enough ports to + * handle all the ones it binds. Caller is also responsible + * for calling @gserial_cleanup() before module unload. + */ +int __init obex_bind_config(struct usb_configuration *c, u8 port_num) +{ + struct f_obex *obex; + int status; + + if (!can_support_obex(c)) + return -EINVAL; + + /* maybe allocate device-global string IDs, and patch descriptors */ + if (obex_string_defs[OBEX_CTRL_IDX].id == 0) { + status = usb_string_id(c->cdev); + if (status < 0) + return status; + obex_string_defs[OBEX_CTRL_IDX].id = status; + + obex_control_intf.iInterface = status; + + status = usb_string_id(c->cdev); + if (status < 0) + return status; + obex_string_defs[OBEX_DATA_IDX].id = status; + + obex_data_nop_intf.iInterface = + obex_data_intf.iInterface = status; + } + + /* allocate and initialize one new instance */ + obex = kzalloc(sizeof *obex, GFP_KERNEL); + if (!obex) + return -ENOMEM; + + obex->port_num = port_num; + + obex->port.connect = obex_connect; + obex->port.disconnect = obex_disconnect; + + obex->port.func.name = "obex"; + obex->port.func.strings = obex_strings; + /* descriptors are per-instance copies */ + obex->port.func.bind = obex_bind; + obex->port.func.unbind = obex_unbind; + obex->port.func.set_alt = obex_set_alt; + obex->port.func.get_alt = obex_get_alt; + obex->port.func.disable = obex_disable; + + status = usb_add_function(c, &obex->port.func); + if (status) + kfree(obex); + + return status; +} + +MODULE_AUTHOR("Felipe Balbi"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/gadget/f_sourcesink.c b/drivers/usb/gadget/f_sourcesink.c index f18c3a14d72a..dc84d26d2835 100644 --- a/drivers/usb/gadget/f_sourcesink.c +++ b/drivers/usb/gadget/f_sourcesink.c @@ -552,7 +552,6 @@ static struct usb_configuration sourcesink_driver = { .setup = sourcesink_setup, .bConfigurationValue = 3, .bmAttributes = USB_CONFIG_ATT_SELFPOWER, - .bMaxPower = 1, /* 2 mA, minimal */ /* .iConfiguration = DYNAMIC */ }; diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c index 0c632d22a631..c4e62a6297d7 100644 --- a/drivers/usb/gadget/file_storage.c +++ b/drivers/usb/gadget/file_storage.c @@ -851,7 +851,7 @@ config_desc = { .bConfigurationValue = CONFIG_VALUE, .iConfiguration = STRING_CONFIG, .bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER, - .bMaxPower = 1, // self-powered + .bMaxPower = CONFIG_USB_GADGET_VBUS_DRAW / 2, }; static struct usb_otg_descriptor @@ -2676,11 +2676,24 @@ static int check_command(struct fsg_dev *fsg, int cmnd_size, /* Verify the length of the command itself */ if (cmnd_size != fsg->cmnd_size) { - /* Special case workaround: MS-Windows issues REQUEST SENSE - * with cbw->Length == 12 (it should be 6). */ - if (fsg->cmnd[0] == SC_REQUEST_SENSE && fsg->cmnd_size == 12) + /* Special case workaround: There are plenty of buggy SCSI + * implementations. Many have issues with cbw->Length + * field passing a wrong command size. For those cases we + * always try to work around the problem by using the length + * sent by the host side provided it is at least as large + * as the correct command length. + * Examples of such cases would be MS-Windows, which issues + * REQUEST SENSE with cbw->Length == 12 where it should + * be 6, and xbox360 issuing INQUIRY, TEST UNIT READY and + * REQUEST SENSE with cbw->Length == 10 where it should + * be 6 as well. + */ + if (cmnd_size <= fsg->cmnd_size) { + DBG(fsg, "%s is buggy! Expected length %d " + "but we got %d\n", name, + cmnd_size, fsg->cmnd_size); cmnd_size = fsg->cmnd_size; - else { + } else { fsg->phase_error = 1; return -EINVAL; } diff --git a/drivers/usb/gadget/fsl_qe_udc.c b/drivers/usb/gadget/fsl_qe_udc.c new file mode 100644 index 000000000000..1fe8b44787b3 --- /dev/null +++ b/drivers/usb/gadget/fsl_qe_udc.c @@ -0,0 +1,2760 @@ +/* + * driver/usb/gadget/fsl_qe_udc.c + * + * Copyright (c) 2006-2008 Freescale Semiconductor, Inc. All rights reserved. + * + * Xie Xiaobo <X.Xie@freescale.com> + * Li Yang <leoli@freescale.com> + * Based on bareboard code from Shlomi Gridish. + * + * Description: + * Freescle QE/CPM USB Pheripheral Controller Driver + * The controller can be found on MPC8360, MPC8272, and etc. + * MPC8360 Rev 1.1 may need QE mircocode update + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#undef USB_TRACE + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/ioport.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/slab.h> +#include <linux/list.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/moduleparam.h> +#include <linux/of_platform.h> +#include <linux/dma-mapping.h> +#include <linux/usb/ch9.h> +#include <linux/usb/gadget.h> +#include <linux/usb/otg.h> +#include <asm/qe.h> +#include <asm/cpm.h> +#include <asm/dma.h> +#include <asm/reg.h> +#include "fsl_qe_udc.h" + +#define DRIVER_DESC "Freescale QE/CPM USB Device Controller driver" +#define DRIVER_AUTHOR "Xie XiaoBo" +#define DRIVER_VERSION "1.0" + +#define DMA_ADDR_INVALID (~(dma_addr_t)0) + +static const char driver_name[] = "fsl_qe_udc"; +static const char driver_desc[] = DRIVER_DESC; + +/*ep name is important in gadget, it should obey the convention of ep_match()*/ +static const char *const ep_name[] = { + "ep0-control", /* everyone has ep0 */ + /* 3 configurable endpoints */ + "ep1", + "ep2", + "ep3", +}; + +static struct usb_endpoint_descriptor qe_ep0_desc = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = 0, + .bmAttributes = USB_ENDPOINT_XFER_CONTROL, + .wMaxPacketSize = USB_MAX_CTRL_PAYLOAD, +}; + +/* it is initialized in probe() */ +static struct qe_udc *udc_controller; + +/******************************************************************** + * Internal Used Function Start +********************************************************************/ +/*----------------------------------------------------------------- + * done() - retire a request; caller blocked irqs + *--------------------------------------------------------------*/ +static void done(struct qe_ep *ep, struct qe_req *req, int status) +{ + struct qe_udc *udc = ep->udc; + unsigned char stopped = ep->stopped; + + /* the req->queue pointer is used by ep_queue() func, in which + * the request will be added into a udc_ep->queue 'd tail + * so here the req will be dropped from the ep->queue + */ + list_del_init(&req->queue); + + /* req.status should be set as -EINPROGRESS in ep_queue() */ + if (req->req.status == -EINPROGRESS) + req->req.status = status; + else + status = req->req.status; + + if (req->mapped) { + dma_unmap_single(udc->gadget.dev.parent, + req->req.dma, req->req.length, + ep_is_in(ep) + ? DMA_TO_DEVICE + : DMA_FROM_DEVICE); + req->req.dma = DMA_ADDR_INVALID; + req->mapped = 0; + } else + dma_sync_single_for_cpu(udc->gadget.dev.parent, + req->req.dma, req->req.length, + ep_is_in(ep) + ? DMA_TO_DEVICE + : DMA_FROM_DEVICE); + + if (status && (status != -ESHUTDOWN)) + dev_vdbg(udc->dev, "complete %s req %p stat %d len %u/%u\n", + ep->ep.name, &req->req, status, + req->req.actual, req->req.length); + + /* don't modify queue heads during completion callback */ + ep->stopped = 1; + spin_unlock(&udc->lock); + + /* this complete() should a func implemented by gadget layer, + * eg fsg->bulk_in_complete() */ + if (req->req.complete) + req->req.complete(&ep->ep, &req->req); + + spin_lock(&udc->lock); + + ep->stopped = stopped; +} + +/*----------------------------------------------------------------- + * nuke(): delete all requests related to this ep + *--------------------------------------------------------------*/ +static void nuke(struct qe_ep *ep, int status) +{ + /* Whether this eq has request linked */ + while (!list_empty(&ep->queue)) { + struct qe_req *req = NULL; + req = list_entry(ep->queue.next, struct qe_req, queue); + + done(ep, req, status); + } +} + +/*---------------------------------------------------------------------------* + * USB and Endpoint manipulate process, include parameter and register * + *---------------------------------------------------------------------------*/ +/* @value: 1--set stall 0--clean stall */ +static int qe_eprx_stall_change(struct qe_ep *ep, int value) +{ + u16 tem_usep; + u8 epnum = ep->epnum; + struct qe_udc *udc = ep->udc; + + tem_usep = in_be16(&udc->usb_regs->usb_usep[epnum]); + tem_usep = tem_usep & ~USB_RHS_MASK; + if (value == 1) + tem_usep |= USB_RHS_STALL; + else if (ep->dir == USB_DIR_IN) + tem_usep |= USB_RHS_IGNORE_OUT; + + out_be16(&udc->usb_regs->usb_usep[epnum], tem_usep); + return 0; +} + +static int qe_eptx_stall_change(struct qe_ep *ep, int value) +{ + u16 tem_usep; + u8 epnum = ep->epnum; + struct qe_udc *udc = ep->udc; + + tem_usep = in_be16(&udc->usb_regs->usb_usep[epnum]); + tem_usep = tem_usep & ~USB_THS_MASK; + if (value == 1) + tem_usep |= USB_THS_STALL; + else if (ep->dir == USB_DIR_OUT) + tem_usep |= USB_THS_IGNORE_IN; + + out_be16(&udc->usb_regs->usb_usep[epnum], tem_usep); + + return 0; +} + +static int qe_ep0_stall(struct qe_udc *udc) +{ + qe_eptx_stall_change(&udc->eps[0], 1); + qe_eprx_stall_change(&udc->eps[0], 1); + udc_controller->ep0_state = WAIT_FOR_SETUP; + udc_controller->ep0_dir = 0; + return 0; +} + +static int qe_eprx_nack(struct qe_ep *ep) +{ + u8 epnum = ep->epnum; + struct qe_udc *udc = ep->udc; + + if (ep->state == EP_STATE_IDLE) { + /* Set the ep's nack */ + clrsetbits_be16(&udc->usb_regs->usb_usep[epnum], + USB_RHS_MASK, USB_RHS_NACK); + + /* Mask Rx and Busy interrupts */ + clrbits16(&udc->usb_regs->usb_usbmr, + (USB_E_RXB_MASK | USB_E_BSY_MASK)); + + ep->state = EP_STATE_NACK; + } + return 0; +} + +static int qe_eprx_normal(struct qe_ep *ep) +{ + struct qe_udc *udc = ep->udc; + + if (ep->state == EP_STATE_NACK) { + clrsetbits_be16(&udc->usb_regs->usb_usep[ep->epnum], + USB_RTHS_MASK, USB_THS_IGNORE_IN); + + /* Unmask RX interrupts */ + out_be16(&udc->usb_regs->usb_usber, + USB_E_BSY_MASK | USB_E_RXB_MASK); + setbits16(&udc->usb_regs->usb_usbmr, + (USB_E_RXB_MASK | USB_E_BSY_MASK)); + + ep->state = EP_STATE_IDLE; + ep->has_data = 0; + } + + return 0; +} + +static int qe_ep_cmd_stoptx(struct qe_ep *ep) +{ + if (ep->udc->soc_type == PORT_CPM) + cpm_command(CPM_USB_STOP_TX | (ep->epnum << CPM_USB_EP_SHIFT), + CPM_USB_STOP_TX_OPCODE); + else + qe_issue_cmd(QE_USB_STOP_TX, QE_CR_SUBBLOCK_USB, + ep->epnum, 0); + + return 0; +} + +static int qe_ep_cmd_restarttx(struct qe_ep *ep) +{ + if (ep->udc->soc_type == PORT_CPM) + cpm_command(CPM_USB_RESTART_TX | (ep->epnum << + CPM_USB_EP_SHIFT), CPM_USB_RESTART_TX_OPCODE); + else + qe_issue_cmd(QE_USB_RESTART_TX, QE_CR_SUBBLOCK_USB, + ep->epnum, 0); + + return 0; +} + +static int qe_ep_flushtxfifo(struct qe_ep *ep) +{ + struct qe_udc *udc = ep->udc; + int i; + + i = (int)ep->epnum; + + qe_ep_cmd_stoptx(ep); + out_8(&udc->usb_regs->usb_uscom, + USB_CMD_FLUSH_FIFO | (USB_CMD_EP_MASK & (ep->epnum))); + out_be16(&udc->ep_param[i]->tbptr, in_be16(&udc->ep_param[i]->tbase)); + out_be32(&udc->ep_param[i]->tstate, 0); + out_be16(&udc->ep_param[i]->tbcnt, 0); + + ep->c_txbd = ep->txbase; + ep->n_txbd = ep->txbase; + qe_ep_cmd_restarttx(ep); + return 0; +} + +static int qe_ep_filltxfifo(struct qe_ep *ep) +{ + struct qe_udc *udc = ep->udc; + + out_8(&udc->usb_regs->usb_uscom, + USB_CMD_STR_FIFO | (USB_CMD_EP_MASK & (ep->epnum))); + return 0; +} + +static int qe_epbds_reset(struct qe_udc *udc, int pipe_num) +{ + struct qe_ep *ep; + u32 bdring_len; + struct qe_bd __iomem *bd; + int i; + + ep = &udc->eps[pipe_num]; + + if (ep->dir == USB_DIR_OUT) + bdring_len = USB_BDRING_LEN_RX; + else + bdring_len = USB_BDRING_LEN; + + bd = ep->rxbase; + for (i = 0; i < (bdring_len - 1); i++) { + out_be32((u32 __iomem *)bd, R_E | R_I); + bd++; + } + out_be32((u32 __iomem *)bd, R_E | R_I | R_W); + + bd = ep->txbase; + for (i = 0; i < USB_BDRING_LEN_TX - 1; i++) { + out_be32(&bd->buf, 0); + out_be32((u32 __iomem *)bd, 0); + bd++; + } + out_be32((u32 __iomem *)bd, T_W); + + return 0; +} + +static int qe_ep_reset(struct qe_udc *udc, int pipe_num) +{ + struct qe_ep *ep; + u16 tmpusep; + + ep = &udc->eps[pipe_num]; + tmpusep = in_be16(&udc->usb_regs->usb_usep[pipe_num]); + tmpusep &= ~USB_RTHS_MASK; + + switch (ep->dir) { + case USB_DIR_BOTH: + qe_ep_flushtxfifo(ep); + break; + case USB_DIR_OUT: + tmpusep |= USB_THS_IGNORE_IN; + break; + case USB_DIR_IN: + qe_ep_flushtxfifo(ep); + tmpusep |= USB_RHS_IGNORE_OUT; + break; + default: + break; + } + out_be16(&udc->usb_regs->usb_usep[pipe_num], tmpusep); + + qe_epbds_reset(udc, pipe_num); + + return 0; +} + +static int qe_ep_toggledata01(struct qe_ep *ep) +{ + ep->data01 ^= 0x1; + return 0; +} + +static int qe_ep_bd_init(struct qe_udc *udc, unsigned char pipe_num) +{ + struct qe_ep *ep = &udc->eps[pipe_num]; + unsigned long tmp_addr = 0; + struct usb_ep_para __iomem *epparam; + int i; + struct qe_bd __iomem *bd; + int bdring_len; + + if (ep->dir == USB_DIR_OUT) + bdring_len = USB_BDRING_LEN_RX; + else + bdring_len = USB_BDRING_LEN; + + epparam = udc->ep_param[pipe_num]; + /* alloc multi-ram for BD rings and set the ep parameters */ + tmp_addr = cpm_muram_alloc(sizeof(struct qe_bd) * (bdring_len + + USB_BDRING_LEN_TX), QE_ALIGNMENT_OF_BD); + out_be16(&epparam->rbase, (u16)tmp_addr); + out_be16(&epparam->tbase, (u16)(tmp_addr + + (sizeof(struct qe_bd) * bdring_len))); + + out_be16(&epparam->rbptr, in_be16(&epparam->rbase)); + out_be16(&epparam->tbptr, in_be16(&epparam->tbase)); + + ep->rxbase = cpm_muram_addr(tmp_addr); + ep->txbase = cpm_muram_addr(tmp_addr + (sizeof(struct qe_bd) + * bdring_len)); + ep->n_rxbd = ep->rxbase; + ep->e_rxbd = ep->rxbase; + ep->n_txbd = ep->txbase; + ep->c_txbd = ep->txbase; + ep->data01 = 0; /* data0 */ + + /* Init TX and RX bds */ + bd = ep->rxbase; + for (i = 0; i < bdring_len - 1; i++) { + out_be32(&bd->buf, 0); + out_be32((u32 __iomem *)bd, 0); + bd++; + } + out_be32(&bd->buf, 0); + out_be32((u32 __iomem *)bd, R_W); + + bd = ep->txbase; + for (i = 0; i < USB_BDRING_LEN_TX - 1; i++) { + out_be32(&bd->buf, 0); + out_be32((u32 __iomem *)bd, 0); + bd++; + } + out_be32(&bd->buf, 0); + out_be32((u32 __iomem *)bd, T_W); + + return 0; +} + +static int qe_ep_rxbd_update(struct qe_ep *ep) +{ + unsigned int size; + int i; + unsigned int tmp; + struct qe_bd __iomem *bd; + unsigned int bdring_len; + + if (ep->rxbase == NULL) + return -EINVAL; + + bd = ep->rxbase; + + ep->rxframe = kmalloc(sizeof(*ep->rxframe), GFP_ATOMIC); + if (ep->rxframe == NULL) { + dev_err(ep->udc->dev, "malloc rxframe failed\n"); + return -ENOMEM; + } + + qe_frame_init(ep->rxframe); + + if (ep->dir == USB_DIR_OUT) + bdring_len = USB_BDRING_LEN_RX; + else + bdring_len = USB_BDRING_LEN; + + size = (ep->ep.maxpacket + USB_CRC_SIZE + 2) * (bdring_len + 1); + ep->rxbuffer = kzalloc(size, GFP_ATOMIC); + if (ep->rxbuffer == NULL) { + dev_err(ep->udc->dev, "malloc rxbuffer failed,size=%d\n", + size); + kfree(ep->rxframe); + return -ENOMEM; + } + + ep->rxbuf_d = virt_to_phys((void *)ep->rxbuffer); + if (ep->rxbuf_d == DMA_ADDR_INVALID) { + ep->rxbuf_d = dma_map_single(udc_controller->gadget.dev.parent, + ep->rxbuffer, + size, + DMA_FROM_DEVICE); + ep->rxbufmap = 1; + } else { + dma_sync_single_for_device(udc_controller->gadget.dev.parent, + ep->rxbuf_d, size, + DMA_FROM_DEVICE); + ep->rxbufmap = 0; + } + + size = ep->ep.maxpacket + USB_CRC_SIZE + 2; + tmp = ep->rxbuf_d; + tmp = (u32)(((tmp >> 2) << 2) + 4); + + for (i = 0; i < bdring_len - 1; i++) { + out_be32(&bd->buf, tmp); + out_be32((u32 __iomem *)bd, (R_E | R_I)); + tmp = tmp + size; + bd++; + } + out_be32(&bd->buf, tmp); + out_be32((u32 __iomem *)bd, (R_E | R_I | R_W)); + + return 0; +} + +static int qe_ep_register_init(struct qe_udc *udc, unsigned char pipe_num) +{ + struct qe_ep *ep = &udc->eps[pipe_num]; + struct usb_ep_para __iomem *epparam; + u16 usep, logepnum; + u16 tmp; + u8 rtfcr = 0; + + epparam = udc->ep_param[pipe_num]; + + usep = 0; + logepnum = (ep->desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); + usep |= (logepnum << USB_EPNUM_SHIFT); + + switch (ep->desc->bmAttributes & 0x03) { + case USB_ENDPOINT_XFER_BULK: + usep |= USB_TRANS_BULK; + break; + case USB_ENDPOINT_XFER_ISOC: + usep |= USB_TRANS_ISO; + break; + case USB_ENDPOINT_XFER_INT: + usep |= USB_TRANS_INT; + break; + default: + usep |= USB_TRANS_CTR; + break; + } + + switch (ep->dir) { + case USB_DIR_OUT: + usep |= USB_THS_IGNORE_IN; + break; + case USB_DIR_IN: + usep |= USB_RHS_IGNORE_OUT; + break; + default: + break; + } + out_be16(&udc->usb_regs->usb_usep[pipe_num], usep); + + rtfcr = 0x30; + out_8(&epparam->rbmr, rtfcr); + out_8(&epparam->tbmr, rtfcr); + + tmp = (u16)(ep->ep.maxpacket + USB_CRC_SIZE); + /* MRBLR must be divisble by 4 */ + tmp = (u16)(((tmp >> 2) << 2) + 4); + out_be16(&epparam->mrblr, tmp); + + return 0; +} + +static int qe_ep_init(struct qe_udc *udc, + unsigned char pipe_num, + const struct usb_endpoint_descriptor *desc) +{ + struct qe_ep *ep = &udc->eps[pipe_num]; + unsigned long flags; + int reval = 0; + u16 max = 0; + + max = le16_to_cpu(desc->wMaxPacketSize); + + /* check the max package size validate for this endpoint */ + /* Refer to USB2.0 spec table 9-13, + */ + if (pipe_num != 0) { + switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { + case USB_ENDPOINT_XFER_BULK: + if (strstr(ep->ep.name, "-iso") + || strstr(ep->ep.name, "-int")) + goto en_done; + switch (udc->gadget.speed) { + case USB_SPEED_HIGH: + if ((max == 128) || (max == 256) || (max == 512)) + break; + default: + switch (max) { + case 4: + case 8: + case 16: + case 32: + case 64: + break; + default: + case USB_SPEED_LOW: + goto en_done; + } + } + break; + case USB_ENDPOINT_XFER_INT: + if (strstr(ep->ep.name, "-iso")) /* bulk is ok */ + goto en_done; + switch (udc->gadget.speed) { + case USB_SPEED_HIGH: + if (max <= 1024) + break; + case USB_SPEED_FULL: + if (max <= 64) + break; + default: + if (max <= 8) + break; + goto en_done; + } + break; + case USB_ENDPOINT_XFER_ISOC: + if (strstr(ep->ep.name, "-bulk") + || strstr(ep->ep.name, "-int")) + goto en_done; + switch (udc->gadget.speed) { + case USB_SPEED_HIGH: + if (max <= 1024) + break; + case USB_SPEED_FULL: + if (max <= 1023) + break; + default: + goto en_done; + } + break; + case USB_ENDPOINT_XFER_CONTROL: + if (strstr(ep->ep.name, "-iso") + || strstr(ep->ep.name, "-int")) + goto en_done; + switch (udc->gadget.speed) { + case USB_SPEED_HIGH: + case USB_SPEED_FULL: + switch (max) { + case 1: + case 2: + case 4: + case 8: + case 16: + case 32: + case 64: + break; + default: + goto en_done; + } + case USB_SPEED_LOW: + switch (max) { + case 1: + case 2: + case 4: + case 8: + break; + default: + goto en_done; + } + default: + goto en_done; + } + break; + + default: + goto en_done; + } + } /* if ep0*/ + + spin_lock_irqsave(&udc->lock, flags); + + /* initialize ep structure */ + ep->ep.maxpacket = max; + ep->tm = (u8)(desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK); + ep->desc = desc; + ep->stopped = 0; + ep->init = 1; + + if (pipe_num == 0) { + ep->dir = USB_DIR_BOTH; + udc->ep0_dir = USB_DIR_OUT; + udc->ep0_state = WAIT_FOR_SETUP; + } else { + switch (desc->bEndpointAddress & USB_ENDPOINT_DIR_MASK) { + case USB_DIR_OUT: + ep->dir = USB_DIR_OUT; + break; + case USB_DIR_IN: + ep->dir = USB_DIR_IN; + default: + break; + } + } + + /* hardware special operation */ + qe_ep_bd_init(udc, pipe_num); + if ((ep->tm == USBP_TM_CTL) || (ep->dir == USB_DIR_OUT)) { + reval = qe_ep_rxbd_update(ep); + if (reval) + goto en_done1; + } + + if ((ep->tm == USBP_TM_CTL) || (ep->dir == USB_DIR_IN)) { + ep->txframe = kmalloc(sizeof(*ep->txframe), GFP_ATOMIC); + if (ep->txframe == NULL) { + dev_err(udc->dev, "malloc txframe failed\n"); + goto en_done2; + } + qe_frame_init(ep->txframe); + } + + qe_ep_register_init(udc, pipe_num); + + /* Now HW will be NAKing transfers to that EP, + * until a buffer is queued to it. */ + spin_unlock_irqrestore(&udc->lock, flags); + + return 0; +en_done2: + kfree(ep->rxbuffer); + kfree(ep->rxframe); +en_done1: + spin_unlock_irqrestore(&udc->lock, flags); +en_done: + dev_dbg(udc->dev, "failed to initialize %s\n", ep->ep.name); + return -ENODEV; +} + +static inline void qe_usb_enable(void) +{ + setbits8(&udc_controller->usb_regs->usb_usmod, USB_MODE_EN); +} + +static inline void qe_usb_disable(void) +{ + clrbits8(&udc_controller->usb_regs->usb_usmod, USB_MODE_EN); +} + +/*----------------------------------------------------------------------------* + * USB and EP basic manipulate function end * + *----------------------------------------------------------------------------*/ + + +/****************************************************************************** + UDC transmit and receive process + ******************************************************************************/ +static void recycle_one_rxbd(struct qe_ep *ep) +{ + u32 bdstatus; + + bdstatus = in_be32((u32 __iomem *)ep->e_rxbd); + bdstatus = R_I | R_E | (bdstatus & R_W); + out_be32((u32 __iomem *)ep->e_rxbd, bdstatus); + + if (bdstatus & R_W) + ep->e_rxbd = ep->rxbase; + else + ep->e_rxbd++; +} + +static void recycle_rxbds(struct qe_ep *ep, unsigned char stopatnext) +{ + u32 bdstatus; + struct qe_bd __iomem *bd, *nextbd; + unsigned char stop = 0; + + nextbd = ep->n_rxbd; + bd = ep->e_rxbd; + bdstatus = in_be32((u32 __iomem *)bd); + + while (!(bdstatus & R_E) && !(bdstatus & BD_LENGTH_MASK) && !stop) { + bdstatus = R_E | R_I | (bdstatus & R_W); + out_be32((u32 __iomem *)bd, bdstatus); + + if (bdstatus & R_W) + bd = ep->rxbase; + else + bd++; + + bdstatus = in_be32((u32 __iomem *)bd); + if (stopatnext && (bd == nextbd)) + stop = 1; + } + + ep->e_rxbd = bd; +} + +static void ep_recycle_rxbds(struct qe_ep *ep) +{ + struct qe_bd __iomem *bd = ep->n_rxbd; + u32 bdstatus; + u8 epnum = ep->epnum; + struct qe_udc *udc = ep->udc; + + bdstatus = in_be32((u32 __iomem *)bd); + if (!(bdstatus & R_E) && !(bdstatus & BD_LENGTH_MASK)) { + bd = ep->rxbase + + ((in_be16(&udc->ep_param[epnum]->rbptr) - + in_be16(&udc->ep_param[epnum]->rbase)) + >> 3); + bdstatus = in_be32((u32 __iomem *)bd); + + if (bdstatus & R_W) + bd = ep->rxbase; + else + bd++; + + ep->e_rxbd = bd; + recycle_rxbds(ep, 0); + ep->e_rxbd = ep->n_rxbd; + } else + recycle_rxbds(ep, 1); + + if (in_be16(&udc->usb_regs->usb_usber) & USB_E_BSY_MASK) + out_be16(&udc->usb_regs->usb_usber, USB_E_BSY_MASK); + + if (ep->has_data <= 0 && (!list_empty(&ep->queue))) + qe_eprx_normal(ep); + + ep->localnack = 0; +} + +static void setup_received_handle(struct qe_udc *udc, + struct usb_ctrlrequest *setup); +static int qe_ep_rxframe_handle(struct qe_ep *ep); +static void ep0_req_complete(struct qe_udc *udc, struct qe_req *req); +/* when BD PID is setup, handle the packet */ +static int ep0_setup_handle(struct qe_udc *udc) +{ + struct qe_ep *ep = &udc->eps[0]; + struct qe_frame *pframe; + unsigned int fsize; + u8 *cp; + + pframe = ep->rxframe; + if ((frame_get_info(pframe) & PID_SETUP) + && (udc->ep0_state == WAIT_FOR_SETUP)) { + fsize = frame_get_length(pframe); + if (unlikely(fsize != 8)) + return -EINVAL; + cp = (u8 *)&udc->local_setup_buff; + memcpy(cp, pframe->data, fsize); + ep->data01 = 1; + + /* handle the usb command base on the usb_ctrlrequest */ + setup_received_handle(udc, &udc->local_setup_buff); + return 0; + } + return -EINVAL; +} + +static int qe_ep0_rx(struct qe_udc *udc) +{ + struct qe_ep *ep = &udc->eps[0]; + struct qe_frame *pframe; + struct qe_bd __iomem *bd; + u32 bdstatus, length; + u32 vaddr; + + pframe = ep->rxframe; + + if (ep->dir == USB_DIR_IN) { + dev_err(udc->dev, "ep0 not a control endpoint\n"); + return -EINVAL; + } + + bd = ep->n_rxbd; + bdstatus = in_be32((u32 __iomem *)bd); + length = bdstatus & BD_LENGTH_MASK; + + while (!(bdstatus & R_E) && length) { + if ((bdstatus & R_F) && (bdstatus & R_L) + && !(bdstatus & R_ERROR)) { + if (length == USB_CRC_SIZE) { + udc->ep0_state = WAIT_FOR_SETUP; + dev_vdbg(udc->dev, + "receive a ZLP in status phase\n"); + } else { + qe_frame_clean(pframe); + vaddr = (u32)phys_to_virt(in_be32(&bd->buf)); + frame_set_data(pframe, (u8 *)vaddr); + frame_set_length(pframe, + (length - USB_CRC_SIZE)); + frame_set_status(pframe, FRAME_OK); + switch (bdstatus & R_PID) { + case R_PID_SETUP: + frame_set_info(pframe, PID_SETUP); + break; + case R_PID_DATA1: + frame_set_info(pframe, PID_DATA1); + break; + default: + frame_set_info(pframe, PID_DATA0); + break; + } + + if ((bdstatus & R_PID) == R_PID_SETUP) + ep0_setup_handle(udc); + else + qe_ep_rxframe_handle(ep); + } + } else { + dev_err(udc->dev, "The receive frame with error!\n"); + } + + /* note: don't clear the rxbd's buffer address */ + recycle_one_rxbd(ep); + + /* Get next BD */ + if (bdstatus & R_W) + bd = ep->rxbase; + else + bd++; + + bdstatus = in_be32((u32 __iomem *)bd); + length = bdstatus & BD_LENGTH_MASK; + + } + + ep->n_rxbd = bd; + + return 0; +} + +static int qe_ep_rxframe_handle(struct qe_ep *ep) +{ + struct qe_frame *pframe; + u8 framepid = 0; + unsigned int fsize; + u8 *cp; + struct qe_req *req; + + pframe = ep->rxframe; + + if (frame_get_info(pframe) & PID_DATA1) + framepid = 0x1; + + if (framepid != ep->data01) { + dev_err(ep->udc->dev, "the data01 error!\n"); + return -EIO; + } + + fsize = frame_get_length(pframe); + if (list_empty(&ep->queue)) { + dev_err(ep->udc->dev, "the %s have no requeue!\n", ep->name); + } else { + req = list_entry(ep->queue.next, struct qe_req, queue); + + cp = (u8 *)(req->req.buf) + req->req.actual; + if (cp) { + memcpy(cp, pframe->data, fsize); + req->req.actual += fsize; + if ((fsize < ep->ep.maxpacket) || + (req->req.actual >= req->req.length)) { + if (ep->epnum == 0) + ep0_req_complete(ep->udc, req); + else + done(ep, req, 0); + if (list_empty(&ep->queue) && ep->epnum != 0) + qe_eprx_nack(ep); + } + } + } + + qe_ep_toggledata01(ep); + + return 0; +} + +static void ep_rx_tasklet(unsigned long data) +{ + struct qe_udc *udc = (struct qe_udc *)data; + struct qe_ep *ep; + struct qe_frame *pframe; + struct qe_bd __iomem *bd; + unsigned long flags; + u32 bdstatus, length; + u32 vaddr, i; + + spin_lock_irqsave(&udc->lock, flags); + + for (i = 1; i < USB_MAX_ENDPOINTS; i++) { + ep = &udc->eps[i]; + + if (ep->dir == USB_DIR_IN || ep->enable_tasklet == 0) { + dev_dbg(udc->dev, + "This is a transmit ep or disable tasklet!\n"); + continue; + } + + pframe = ep->rxframe; + bd = ep->n_rxbd; + bdstatus = in_be32((u32 __iomem *)bd); + length = bdstatus & BD_LENGTH_MASK; + + while (!(bdstatus & R_E) && length) { + if (list_empty(&ep->queue)) { + qe_eprx_nack(ep); + dev_dbg(udc->dev, + "The rxep have noreq %d\n", + ep->has_data); + break; + } + + if ((bdstatus & R_F) && (bdstatus & R_L) + && !(bdstatus & R_ERROR)) { + qe_frame_clean(pframe); + vaddr = (u32)phys_to_virt(in_be32(&bd->buf)); + frame_set_data(pframe, (u8 *)vaddr); + frame_set_length(pframe, + (length - USB_CRC_SIZE)); + frame_set_status(pframe, FRAME_OK); + switch (bdstatus & R_PID) { + case R_PID_DATA1: + frame_set_info(pframe, PID_DATA1); + break; + case R_PID_SETUP: + frame_set_info(pframe, PID_SETUP); + break; + default: + frame_set_info(pframe, PID_DATA0); + break; + } + /* handle the rx frame */ + qe_ep_rxframe_handle(ep); + } else { + dev_err(udc->dev, + "error in received frame\n"); + } + /* note: don't clear the rxbd's buffer address */ + /*clear the length */ + out_be32((u32 __iomem *)bd, bdstatus & BD_STATUS_MASK); + ep->has_data--; + if (!(ep->localnack)) + recycle_one_rxbd(ep); + + /* Get next BD */ + if (bdstatus & R_W) + bd = ep->rxbase; + else + bd++; + + bdstatus = in_be32((u32 __iomem *)bd); + length = bdstatus & BD_LENGTH_MASK; + } + + ep->n_rxbd = bd; + + if (ep->localnack) + ep_recycle_rxbds(ep); + + ep->enable_tasklet = 0; + } /* for i=1 */ + + spin_unlock_irqrestore(&udc->lock, flags); +} + +static int qe_ep_rx(struct qe_ep *ep) +{ + struct qe_udc *udc; + struct qe_frame *pframe; + struct qe_bd __iomem *bd; + u16 swoffs, ucoffs, emptybds; + + udc = ep->udc; + pframe = ep->rxframe; + + if (ep->dir == USB_DIR_IN) { + dev_err(udc->dev, "transmit ep in rx function\n"); + return -EINVAL; + } + + bd = ep->n_rxbd; + + swoffs = (u16)(bd - ep->rxbase); + ucoffs = (u16)((in_be16(&udc->ep_param[ep->epnum]->rbptr) - + in_be16(&udc->ep_param[ep->epnum]->rbase)) >> 3); + if (swoffs < ucoffs) + emptybds = USB_BDRING_LEN_RX - ucoffs + swoffs; + else + emptybds = swoffs - ucoffs; + + if (emptybds < MIN_EMPTY_BDS) { + qe_eprx_nack(ep); + ep->localnack = 1; + dev_vdbg(udc->dev, "%d empty bds, send NACK\n", emptybds); + } + ep->has_data = USB_BDRING_LEN_RX - emptybds; + + if (list_empty(&ep->queue)) { + qe_eprx_nack(ep); + dev_vdbg(udc->dev, "The rxep have no req queued with %d BDs\n", + ep->has_data); + return 0; + } + + tasklet_schedule(&udc->rx_tasklet); + ep->enable_tasklet = 1; + + return 0; +} + +/* send data from a frame, no matter what tx_req */ +static int qe_ep_tx(struct qe_ep *ep, struct qe_frame *frame) +{ + struct qe_udc *udc = ep->udc; + struct qe_bd __iomem *bd; + u16 saveusbmr; + u32 bdstatus, pidmask; + u32 paddr; + + if (ep->dir == USB_DIR_OUT) { + dev_err(udc->dev, "receive ep passed to tx function\n"); + return -EINVAL; + } + + /* Disable the Tx interrupt */ + saveusbmr = in_be16(&udc->usb_regs->usb_usbmr); + out_be16(&udc->usb_regs->usb_usbmr, + saveusbmr & ~(USB_E_TXB_MASK | USB_E_TXE_MASK)); + + bd = ep->n_txbd; + bdstatus = in_be32((u32 __iomem *)bd); + + if (!(bdstatus & (T_R | BD_LENGTH_MASK))) { + if (frame_get_length(frame) == 0) { + frame_set_data(frame, udc->nullbuf); + frame_set_length(frame, 2); + frame->info |= (ZLP | NO_CRC); + dev_vdbg(udc->dev, "the frame size = 0\n"); + } + paddr = virt_to_phys((void *)frame->data); + out_be32(&bd->buf, paddr); + bdstatus = (bdstatus&T_W); + if (!(frame_get_info(frame) & NO_CRC)) + bdstatus |= T_R | T_I | T_L | T_TC + | frame_get_length(frame); + else + bdstatus |= T_R | T_I | T_L | frame_get_length(frame); + + /* if the packet is a ZLP in status phase */ + if ((ep->epnum == 0) && (udc->ep0_state == DATA_STATE_NEED_ZLP)) + ep->data01 = 0x1; + + if (ep->data01) { + pidmask = T_PID_DATA1; + frame->info |= PID_DATA1; + } else { + pidmask = T_PID_DATA0; + frame->info |= PID_DATA0; + } + bdstatus |= T_CNF; + bdstatus |= pidmask; + out_be32((u32 __iomem *)bd, bdstatus); + qe_ep_filltxfifo(ep); + + /* enable the TX interrupt */ + out_be16(&udc->usb_regs->usb_usbmr, saveusbmr); + + qe_ep_toggledata01(ep); + if (bdstatus & T_W) + ep->n_txbd = ep->txbase; + else + ep->n_txbd++; + + return 0; + } else { + out_be16(&udc->usb_regs->usb_usbmr, saveusbmr); + dev_vdbg(udc->dev, "The tx bd is not ready!\n"); + return -EBUSY; + } +} + +/* when a bd was transmitted, the function can + * handle the tx_req, not include ep0 */ +static int txcomplete(struct qe_ep *ep, unsigned char restart) +{ + if (ep->tx_req != NULL) { + if (!restart) { + int asent = ep->last; + ep->sent += asent; + ep->last -= asent; + } else { + ep->last = 0; + } + + /* a request already were transmitted completely */ + if ((ep->tx_req->req.length - ep->sent) <= 0) { + ep->tx_req->req.actual = (unsigned int)ep->sent; + done(ep, ep->tx_req, 0); + ep->tx_req = NULL; + ep->last = 0; + ep->sent = 0; + } + } + + /* we should gain a new tx_req fot this endpoint */ + if (ep->tx_req == NULL) { + if (!list_empty(&ep->queue)) { + ep->tx_req = list_entry(ep->queue.next, struct qe_req, + queue); + ep->last = 0; + ep->sent = 0; + } + } + + return 0; +} + +/* give a frame and a tx_req, send some data */ +static int qe_usb_senddata(struct qe_ep *ep, struct qe_frame *frame) +{ + unsigned int size; + u8 *buf; + + qe_frame_clean(frame); + size = min_t(u32, (ep->tx_req->req.length - ep->sent), + ep->ep.maxpacket); + buf = (u8 *)ep->tx_req->req.buf + ep->sent; + if (buf && size) { + ep->last = size; + frame_set_data(frame, buf); + frame_set_length(frame, size); + frame_set_status(frame, FRAME_OK); + frame_set_info(frame, 0); + return qe_ep_tx(ep, frame); + } + return -EIO; +} + +/* give a frame struct,send a ZLP */ +static int sendnulldata(struct qe_ep *ep, struct qe_frame *frame, uint infor) +{ + struct qe_udc *udc = ep->udc; + + if (frame == NULL) + return -ENODEV; + + qe_frame_clean(frame); + frame_set_data(frame, (u8 *)udc->nullbuf); + frame_set_length(frame, 2); + frame_set_status(frame, FRAME_OK); + frame_set_info(frame, (ZLP | NO_CRC | infor)); + + return qe_ep_tx(ep, frame); +} + +static int frame_create_tx(struct qe_ep *ep, struct qe_frame *frame) +{ + struct qe_req *req = ep->tx_req; + int reval; + + if (req == NULL) + return -ENODEV; + + if ((req->req.length - ep->sent) > 0) + reval = qe_usb_senddata(ep, frame); + else + reval = sendnulldata(ep, frame, 0); + + return reval; +} + +/* if direction is DIR_IN, the status is Device->Host + * if direction is DIR_OUT, the status transaction is Device<-Host + * in status phase, udc create a request and gain status */ +static int ep0_prime_status(struct qe_udc *udc, int direction) +{ + + struct qe_ep *ep = &udc->eps[0]; + + if (direction == USB_DIR_IN) { + udc->ep0_state = DATA_STATE_NEED_ZLP; + udc->ep0_dir = USB_DIR_IN; + sendnulldata(ep, ep->txframe, SETUP_STATUS | NO_REQ); + } else { + udc->ep0_dir = USB_DIR_OUT; + udc->ep0_state = WAIT_FOR_OUT_STATUS; + } + + return 0; +} + +/* a request complete in ep0, whether gadget request or udc request */ +static void ep0_req_complete(struct qe_udc *udc, struct qe_req *req) +{ + struct qe_ep *ep = &udc->eps[0]; + /* because usb and ep's status already been set in ch9setaddress() */ + + switch (udc->ep0_state) { + case DATA_STATE_XMIT: + done(ep, req, 0); + /* receive status phase */ + if (ep0_prime_status(udc, USB_DIR_OUT)) + qe_ep0_stall(udc); + break; + + case DATA_STATE_NEED_ZLP: + done(ep, req, 0); + udc->ep0_state = WAIT_FOR_SETUP; + break; + + case DATA_STATE_RECV: + done(ep, req, 0); + /* send status phase */ + if (ep0_prime_status(udc, USB_DIR_IN)) + qe_ep0_stall(udc); + break; + + case WAIT_FOR_OUT_STATUS: + done(ep, req, 0); + udc->ep0_state = WAIT_FOR_SETUP; + break; + + case WAIT_FOR_SETUP: + dev_vdbg(udc->dev, "Unexpected interrupt\n"); + break; + + default: + qe_ep0_stall(udc); + break; + } +} + +static int ep0_txcomplete(struct qe_ep *ep, unsigned char restart) +{ + struct qe_req *tx_req = NULL; + struct qe_frame *frame = ep->txframe; + + if ((frame_get_info(frame) & (ZLP | NO_REQ)) == (ZLP | NO_REQ)) { + if (!restart) + ep->udc->ep0_state = WAIT_FOR_SETUP; + else + sendnulldata(ep, ep->txframe, SETUP_STATUS | NO_REQ); + return 0; + } + + tx_req = ep->tx_req; + if (tx_req != NULL) { + if (!restart) { + int asent = ep->last; + ep->sent += asent; + ep->last -= asent; + } else { + ep->last = 0; + } + + /* a request already were transmitted completely */ + if ((ep->tx_req->req.length - ep->sent) <= 0) { + ep->tx_req->req.actual = (unsigned int)ep->sent; + ep0_req_complete(ep->udc, ep->tx_req); + ep->tx_req = NULL; + ep->last = 0; + ep->sent = 0; + } + } else { + dev_vdbg(ep->udc->dev, "the ep0_controller have no req\n"); + } + + return 0; +} + +static int ep0_txframe_handle(struct qe_ep *ep) +{ + /* if have error, transmit again */ + if (frame_get_status(ep->txframe) & FRAME_ERROR) { + qe_ep_flushtxfifo(ep); + dev_vdbg(ep->udc->dev, "The EP0 transmit data have error!\n"); + if (frame_get_info(ep->txframe) & PID_DATA0) + ep->data01 = 0; + else + ep->data01 = 1; + + ep0_txcomplete(ep, 1); + } else + ep0_txcomplete(ep, 0); + + frame_create_tx(ep, ep->txframe); + return 0; +} + +static int qe_ep0_txconf(struct qe_ep *ep) +{ + struct qe_bd __iomem *bd; + struct qe_frame *pframe; + u32 bdstatus; + + bd = ep->c_txbd; + bdstatus = in_be32((u32 __iomem *)bd); + while (!(bdstatus & T_R) && (bdstatus & ~T_W)) { + pframe = ep->txframe; + + /* clear and recycle the BD */ + out_be32((u32 __iomem *)bd, bdstatus & T_W); + out_be32(&bd->buf, 0); + if (bdstatus & T_W) + ep->c_txbd = ep->txbase; + else + ep->c_txbd++; + + if (ep->c_txbd == ep->n_txbd) { + if (bdstatus & DEVICE_T_ERROR) { + frame_set_status(pframe, FRAME_ERROR); + if (bdstatus & T_TO) + pframe->status |= TX_ER_TIMEOUT; + if (bdstatus & T_UN) + pframe->status |= TX_ER_UNDERUN; + } + ep0_txframe_handle(ep); + } + + bd = ep->c_txbd; + bdstatus = in_be32((u32 __iomem *)bd); + } + + return 0; +} + +static int ep_txframe_handle(struct qe_ep *ep) +{ + if (frame_get_status(ep->txframe) & FRAME_ERROR) { + qe_ep_flushtxfifo(ep); + dev_vdbg(ep->udc->dev, "The EP0 transmit data have error!\n"); + if (frame_get_info(ep->txframe) & PID_DATA0) + ep->data01 = 0; + else + ep->data01 = 1; + + txcomplete(ep, 1); + } else + txcomplete(ep, 0); + + frame_create_tx(ep, ep->txframe); /* send the data */ + return 0; +} + +/* confirm the already trainsmited bd */ +static int qe_ep_txconf(struct qe_ep *ep) +{ + struct qe_bd __iomem *bd; + struct qe_frame *pframe = NULL; + u32 bdstatus; + unsigned char breakonrxinterrupt = 0; + + bd = ep->c_txbd; + bdstatus = in_be32((u32 __iomem *)bd); + while (!(bdstatus & T_R) && (bdstatus & ~T_W)) { + pframe = ep->txframe; + if (bdstatus & DEVICE_T_ERROR) { + frame_set_status(pframe, FRAME_ERROR); + if (bdstatus & T_TO) + pframe->status |= TX_ER_TIMEOUT; + if (bdstatus & T_UN) + pframe->status |= TX_ER_UNDERUN; + } + + /* clear and recycle the BD */ + out_be32((u32 __iomem *)bd, bdstatus & T_W); + out_be32(&bd->buf, 0); + if (bdstatus & T_W) + ep->c_txbd = ep->txbase; + else + ep->c_txbd++; + + /* handle the tx frame */ + ep_txframe_handle(ep); + bd = ep->c_txbd; + bdstatus = in_be32((u32 __iomem *)bd); + } + if (breakonrxinterrupt) + return -EIO; + else + return 0; +} + +/* Add a request in queue, and try to transmit a packet */ +static int ep_req_send(struct qe_ep *ep, struct qe_req *req) +{ + int reval = 0; + + if (ep->tx_req == NULL) { + ep->sent = 0; + ep->last = 0; + txcomplete(ep, 0); /* can gain a new tx_req */ + reval = frame_create_tx(ep, ep->txframe); + } + return reval; +} + +/* Maybe this is a good ideal */ +static int ep_req_rx(struct qe_ep *ep, struct qe_req *req) +{ + struct qe_udc *udc = ep->udc; + struct qe_frame *pframe = NULL; + struct qe_bd __iomem *bd; + u32 bdstatus, length; + u32 vaddr, fsize; + u8 *cp; + u8 finish_req = 0; + u8 framepid; + + if (list_empty(&ep->queue)) { + dev_vdbg(udc->dev, "the req already finish!\n"); + return 0; + } + pframe = ep->rxframe; + + bd = ep->n_rxbd; + bdstatus = in_be32((u32 __iomem *)bd); + length = bdstatus & BD_LENGTH_MASK; + + while (!(bdstatus & R_E) && length) { + if (finish_req) + break; + if ((bdstatus & R_F) && (bdstatus & R_L) + && !(bdstatus & R_ERROR)) { + qe_frame_clean(pframe); + vaddr = (u32)phys_to_virt(in_be32(&bd->buf)); + frame_set_data(pframe, (u8 *)vaddr); + frame_set_length(pframe, (length - USB_CRC_SIZE)); + frame_set_status(pframe, FRAME_OK); + switch (bdstatus & R_PID) { + case R_PID_DATA1: + frame_set_info(pframe, PID_DATA1); break; + default: + frame_set_info(pframe, PID_DATA0); break; + } + /* handle the rx frame */ + + if (frame_get_info(pframe) & PID_DATA1) + framepid = 0x1; + else + framepid = 0; + + if (framepid != ep->data01) { + dev_vdbg(udc->dev, "the data01 error!\n"); + } else { + fsize = frame_get_length(pframe); + + cp = (u8 *)(req->req.buf) + req->req.actual; + if (cp) { + memcpy(cp, pframe->data, fsize); + req->req.actual += fsize; + if ((fsize < ep->ep.maxpacket) + || (req->req.actual >= + req->req.length)) { + finish_req = 1; + done(ep, req, 0); + if (list_empty(&ep->queue)) + qe_eprx_nack(ep); + } + } + qe_ep_toggledata01(ep); + } + } else { + dev_err(udc->dev, "The receive frame with error!\n"); + } + + /* note: don't clear the rxbd's buffer address * + * only Clear the length */ + out_be32((u32 __iomem *)bd, (bdstatus & BD_STATUS_MASK)); + ep->has_data--; + + /* Get next BD */ + if (bdstatus & R_W) + bd = ep->rxbase; + else + bd++; + + bdstatus = in_be32((u32 __iomem *)bd); + length = bdstatus & BD_LENGTH_MASK; + } + + ep->n_rxbd = bd; + ep_recycle_rxbds(ep); + + return 0; +} + +/* only add the request in queue */ +static int ep_req_receive(struct qe_ep *ep, struct qe_req *req) +{ + if (ep->state == EP_STATE_NACK) { + if (ep->has_data <= 0) { + /* Enable rx and unmask rx interrupt */ + qe_eprx_normal(ep); + } else { + /* Copy the exist BD data */ + ep_req_rx(ep, req); + } + } + + return 0; +} + +/******************************************************************** + Internal Used Function End +********************************************************************/ + +/*----------------------------------------------------------------------- + Endpoint Management Functions For Gadget + -----------------------------------------------------------------------*/ +static int qe_ep_enable(struct usb_ep *_ep, + const struct usb_endpoint_descriptor *desc) +{ + struct qe_udc *udc; + struct qe_ep *ep; + int retval = 0; + unsigned char epnum; + + ep = container_of(_ep, struct qe_ep, ep); + + /* catch various bogus parameters */ + if (!_ep || !desc || ep->desc || _ep->name == ep_name[0] || + (desc->bDescriptorType != USB_DT_ENDPOINT)) + return -EINVAL; + + udc = ep->udc; + if (!udc->driver || (udc->gadget.speed == USB_SPEED_UNKNOWN)) + return -ESHUTDOWN; + + epnum = (u8)desc->bEndpointAddress & 0xF; + + retval = qe_ep_init(udc, epnum, desc); + if (retval != 0) { + cpm_muram_free(cpm_muram_offset(ep->rxbase)); + dev_dbg(udc->dev, "enable ep%d failed\n", ep->epnum); + return -EINVAL; + } + dev_dbg(udc->dev, "enable ep%d successful\n", ep->epnum); + return 0; +} + +static int qe_ep_disable(struct usb_ep *_ep) +{ + struct qe_udc *udc; + struct qe_ep *ep; + unsigned long flags; + unsigned int size; + + ep = container_of(_ep, struct qe_ep, ep); + udc = ep->udc; + + if (!_ep || !ep->desc) { + dev_dbg(udc->dev, "%s not enabled\n", _ep ? ep->ep.name : NULL); + return -EINVAL; + } + + spin_lock_irqsave(&udc->lock, flags); + /* Nuke all pending requests (does flush) */ + nuke(ep, -ESHUTDOWN); + ep->desc = NULL; + ep->stopped = 1; + spin_unlock_irqrestore(&udc->lock, flags); + + cpm_muram_free(cpm_muram_offset(ep->rxbase)); + + if (ep->dir == USB_DIR_OUT) + size = (ep->ep.maxpacket + USB_CRC_SIZE + 2) * + (USB_BDRING_LEN_RX + 1); + else + size = (ep->ep.maxpacket + USB_CRC_SIZE + 2) * + (USB_BDRING_LEN + 1); + + if (ep->dir != USB_DIR_IN) { + kfree(ep->rxframe); + if (ep->rxbufmap) { + dma_unmap_single(udc_controller->gadget.dev.parent, + ep->rxbuf_d, size, + DMA_FROM_DEVICE); + ep->rxbuf_d = DMA_ADDR_INVALID; + } else { + dma_sync_single_for_cpu( + udc_controller->gadget.dev.parent, + ep->rxbuf_d, size, + DMA_FROM_DEVICE); + } + kfree(ep->rxbuffer); + } + + if (ep->dir != USB_DIR_OUT) + kfree(ep->txframe); + + dev_dbg(udc->dev, "disabled %s OK\n", _ep->name); + return 0; +} + +static struct usb_request *qe_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags) +{ + struct qe_req *req; + + req = kzalloc(sizeof(*req), gfp_flags); + if (!req) + return NULL; + + req->req.dma = DMA_ADDR_INVALID; + + INIT_LIST_HEAD(&req->queue); + + return &req->req; +} + +static void qe_free_request(struct usb_ep *_ep, struct usb_request *_req) +{ + struct qe_req *req; + + req = container_of(_req, struct qe_req, req); + + if (_req) + kfree(req); +} + +/* queues (submits) an I/O request to an endpoint */ +static int qe_ep_queue(struct usb_ep *_ep, struct usb_request *_req, + gfp_t gfp_flags) +{ + struct qe_ep *ep = container_of(_ep, struct qe_ep, ep); + struct qe_req *req = container_of(_req, struct qe_req, req); + struct qe_udc *udc; + unsigned long flags; + int reval; + + udc = ep->udc; + /* catch various bogus parameters */ + if (!_req || !req->req.complete || !req->req.buf + || !list_empty(&req->queue)) { + dev_dbg(udc->dev, "bad params\n"); + return -EINVAL; + } + if (!_ep || (!ep->desc && ep_index(ep))) { + dev_dbg(udc->dev, "bad ep\n"); + return -EINVAL; + } + + if (!udc->driver || udc->gadget.speed == USB_SPEED_UNKNOWN) + return -ESHUTDOWN; + + req->ep = ep; + + /* map virtual address to hardware */ + if (req->req.dma == DMA_ADDR_INVALID) { + req->req.dma = dma_map_single(ep->udc->gadget.dev.parent, + req->req.buf, + req->req.length, + ep_is_in(ep) + ? DMA_TO_DEVICE : + DMA_FROM_DEVICE); + req->mapped = 1; + } else { + dma_sync_single_for_device(ep->udc->gadget.dev.parent, + req->req.dma, req->req.length, + ep_is_in(ep) + ? DMA_TO_DEVICE : + DMA_FROM_DEVICE); + req->mapped = 0; + } + + req->req.status = -EINPROGRESS; + req->req.actual = 0; + + list_add_tail(&req->queue, &ep->queue); + dev_vdbg(udc->dev, "gadget have request in %s! %d\n", + ep->name, req->req.length); + spin_lock_irqsave(&udc->lock, flags); + /* push the request to device */ + if (ep_is_in(ep)) + reval = ep_req_send(ep, req); + + /* EP0 */ + if (ep_index(ep) == 0 && req->req.length > 0) { + if (ep_is_in(ep)) + udc->ep0_state = DATA_STATE_XMIT; + else + udc->ep0_state = DATA_STATE_RECV; + } + + if (ep->dir == USB_DIR_OUT) + reval = ep_req_receive(ep, req); + + spin_unlock_irqrestore(&udc->lock, flags); + + return 0; +} + +/* dequeues (cancels, unlinks) an I/O request from an endpoint */ +static int qe_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req) +{ + struct qe_ep *ep = container_of(_ep, struct qe_ep, ep); + struct qe_req *req; + unsigned long flags; + + if (!_ep || !_req) + return -EINVAL; + + spin_lock_irqsave(&ep->udc->lock, flags); + + /* make sure it's actually queued on this endpoint */ + list_for_each_entry(req, &ep->queue, queue) { + if (&req->req == _req) + break; + } + + if (&req->req != _req) { + spin_unlock_irqrestore(&ep->udc->lock, flags); + return -EINVAL; + } + + done(ep, req, -ECONNRESET); + + spin_unlock_irqrestore(&ep->udc->lock, flags); + return 0; +} + +/*----------------------------------------------------------------- + * modify the endpoint halt feature + * @ep: the non-isochronous endpoint being stalled + * @value: 1--set halt 0--clear halt + * Returns zero, or a negative error code. +*----------------------------------------------------------------*/ +static int qe_ep_set_halt(struct usb_ep *_ep, int value) +{ + struct qe_ep *ep; + unsigned long flags; + int status = -EOPNOTSUPP; + struct qe_udc *udc; + + ep = container_of(_ep, struct qe_ep, ep); + if (!_ep || !ep->desc) { + status = -EINVAL; + goto out; + } + + udc = ep->udc; + /* Attempt to halt IN ep will fail if any transfer requests + * are still queue */ + if (value && ep_is_in(ep) && !list_empty(&ep->queue)) { + status = -EAGAIN; + goto out; + } + + status = 0; + spin_lock_irqsave(&ep->udc->lock, flags); + qe_eptx_stall_change(ep, value); + qe_eprx_stall_change(ep, value); + spin_unlock_irqrestore(&ep->udc->lock, flags); + + if (ep->epnum == 0) { + udc->ep0_state = WAIT_FOR_SETUP; + udc->ep0_dir = 0; + } + + /* set data toggle to DATA0 on clear halt */ + if (value == 0) + ep->data01 = 0; +out: + dev_vdbg(udc->dev, "%s %s halt stat %d\n", ep->ep.name, + value ? "set" : "clear", status); + + return status; +} + +static struct usb_ep_ops qe_ep_ops = { + .enable = qe_ep_enable, + .disable = qe_ep_disable, + + .alloc_request = qe_alloc_request, + .free_request = qe_free_request, + + .queue = qe_ep_queue, + .dequeue = qe_ep_dequeue, + + .set_halt = qe_ep_set_halt, +}; + +/*------------------------------------------------------------------------ + Gadget Driver Layer Operations + ------------------------------------------------------------------------*/ + +/* Get the current frame number */ +static int qe_get_frame(struct usb_gadget *gadget) +{ + u16 tmp; + + tmp = in_be16(&udc_controller->usb_param->frame_n); + if (tmp & 0x8000) + tmp = tmp & 0x07ff; + else + tmp = -EINVAL; + + return (int)tmp; +} + +/* Tries to wake up the host connected to this gadget + * + * Return : 0-success + * Negative-this feature not enabled by host or not supported by device hw + */ +static int qe_wakeup(struct usb_gadget *gadget) +{ + return -ENOTSUPP; +} + +/* Notify controller that VBUS is powered, Called by whatever + detects VBUS sessions */ +static int qe_vbus_session(struct usb_gadget *gadget, int is_active) +{ + return -ENOTSUPP; +} + +/* constrain controller's VBUS power usage + * This call is used by gadget drivers during SET_CONFIGURATION calls, + * reporting how much power the device may consume. For example, this + * could affect how quickly batteries are recharged. + * + * Returns zero on success, else negative errno. + */ +static int qe_vbus_draw(struct usb_gadget *gadget, unsigned mA) +{ + return -ENOTSUPP; +} + +/* Change Data+ pullup status + * this func is used by usb_gadget_connect/disconnect + */ +static int qe_pullup(struct usb_gadget *gadget, int is_on) +{ + return -ENOTSUPP; +} + +/* defined in usb_gadget.h */ +static struct usb_gadget_ops qe_gadget_ops = { + .get_frame = qe_get_frame, + .wakeup = qe_wakeup, +/* .set_selfpowered = qe_set_selfpowered,*/ /* always selfpowered */ + .vbus_session = qe_vbus_session, + .vbus_draw = qe_vbus_draw, + .pullup = qe_pullup, +}; + +/*------------------------------------------------------------------------- + USB ep0 Setup process in BUS Enumeration + -------------------------------------------------------------------------*/ +static int udc_reset_ep_queue(struct qe_udc *udc, u8 pipe) +{ + struct qe_ep *ep = &udc->eps[pipe]; + + nuke(ep, -ECONNRESET); + ep->tx_req = NULL; + return 0; +} + +static int reset_queues(struct qe_udc *udc) +{ + u8 pipe; + + for (pipe = 0; pipe < USB_MAX_ENDPOINTS; pipe++) + udc_reset_ep_queue(udc, pipe); + + /* report disconnect; the driver is already quiesced */ + spin_unlock(&udc->lock); + udc->driver->disconnect(&udc->gadget); + spin_lock(&udc->lock); + + return 0; +} + +static void ch9setaddress(struct qe_udc *udc, u16 value, u16 index, + u16 length) +{ + /* Save the new address to device struct */ + udc->device_address = (u8) value; + /* Update usb state */ + udc->usb_state = USB_STATE_ADDRESS; + + /* Status phase , send a ZLP */ + if (ep0_prime_status(udc, USB_DIR_IN)) + qe_ep0_stall(udc); +} + +static void ownercomplete(struct usb_ep *_ep, struct usb_request *_req) +{ + struct qe_req *req = container_of(_req, struct qe_req, req); + + req->req.buf = NULL; + kfree(req); +} + +static void ch9getstatus(struct qe_udc *udc, u8 request_type, u16 value, + u16 index, u16 length) +{ + u16 usb_status = 0; + struct qe_req *req; + struct qe_ep *ep; + int status = 0; + + ep = &udc->eps[0]; + if ((request_type & USB_RECIP_MASK) == USB_RECIP_DEVICE) { + /* Get device status */ + usb_status = 1 << USB_DEVICE_SELF_POWERED; + } else if ((request_type & USB_RECIP_MASK) == USB_RECIP_INTERFACE) { + /* Get interface status */ + /* We don't have interface information in udc driver */ + usb_status = 0; + } else if ((request_type & USB_RECIP_MASK) == USB_RECIP_ENDPOINT) { + /* Get endpoint status */ + int pipe = index & USB_ENDPOINT_NUMBER_MASK; + struct qe_ep *target_ep = &udc->eps[pipe]; + u16 usep; + + /* stall if endpoint doesn't exist */ + if (!target_ep->desc) + goto stall; + + usep = in_be16(&udc->usb_regs->usb_usep[pipe]); + if (index & USB_DIR_IN) { + if (target_ep->dir != USB_DIR_IN) + goto stall; + if ((usep & USB_THS_MASK) == USB_THS_STALL) + usb_status = 1 << USB_ENDPOINT_HALT; + } else { + if (target_ep->dir != USB_DIR_OUT) + goto stall; + if ((usep & USB_RHS_MASK) == USB_RHS_STALL) + usb_status = 1 << USB_ENDPOINT_HALT; + } + } + + req = container_of(qe_alloc_request(&ep->ep, GFP_KERNEL), + struct qe_req, req); + req->req.length = 2; + req->req.buf = udc->statusbuf; + *(u16 *)req->req.buf = cpu_to_le16(usb_status); + req->req.status = -EINPROGRESS; + req->req.actual = 0; + req->req.complete = ownercomplete; + + udc->ep0_dir = USB_DIR_IN; + + /* data phase */ + status = qe_ep_queue(&ep->ep, &req->req, GFP_ATOMIC); + + if (status == 0) + return; +stall: + dev_err(udc->dev, "Can't respond to getstatus request \n"); + qe_ep0_stall(udc); +} + +/* only handle the setup request, suppose the device in normal status */ +static void setup_received_handle(struct qe_udc *udc, + struct usb_ctrlrequest *setup) +{ + /* Fix Endian (udc->local_setup_buff is cpu Endian now)*/ + u16 wValue = le16_to_cpu(setup->wValue); + u16 wIndex = le16_to_cpu(setup->wIndex); + u16 wLength = le16_to_cpu(setup->wLength); + + /* clear the previous request in the ep0 */ + udc_reset_ep_queue(udc, 0); + + if (setup->bRequestType & USB_DIR_IN) + udc->ep0_dir = USB_DIR_IN; + else + udc->ep0_dir = USB_DIR_OUT; + + switch (setup->bRequest) { + case USB_REQ_GET_STATUS: + /* Data+Status phase form udc */ + if ((setup->bRequestType & (USB_DIR_IN | USB_TYPE_MASK)) + != (USB_DIR_IN | USB_TYPE_STANDARD)) + break; + ch9getstatus(udc, setup->bRequestType, wValue, wIndex, + wLength); + return; + + case USB_REQ_SET_ADDRESS: + /* Status phase from udc */ + if (setup->bRequestType != (USB_DIR_OUT | USB_TYPE_STANDARD | + USB_RECIP_DEVICE)) + break; + ch9setaddress(udc, wValue, wIndex, wLength); + return; + + case USB_REQ_CLEAR_FEATURE: + case USB_REQ_SET_FEATURE: + /* Requests with no data phase, status phase from udc */ + if ((setup->bRequestType & USB_TYPE_MASK) + != USB_TYPE_STANDARD) + break; + + if ((setup->bRequestType & USB_RECIP_MASK) + == USB_RECIP_ENDPOINT) { + int pipe = wIndex & USB_ENDPOINT_NUMBER_MASK; + struct qe_ep *ep; + + if (wValue != 0 || wLength != 0 + || pipe > USB_MAX_ENDPOINTS) + break; + ep = &udc->eps[pipe]; + + spin_unlock(&udc->lock); + qe_ep_set_halt(&ep->ep, + (setup->bRequest == USB_REQ_SET_FEATURE) + ? 1 : 0); + spin_lock(&udc->lock); + } + + ep0_prime_status(udc, USB_DIR_IN); + + return; + + default: + break; + } + + if (wLength) { + /* Data phase from gadget, status phase from udc */ + if (setup->bRequestType & USB_DIR_IN) { + udc->ep0_state = DATA_STATE_XMIT; + udc->ep0_dir = USB_DIR_IN; + } else { + udc->ep0_state = DATA_STATE_RECV; + udc->ep0_dir = USB_DIR_OUT; + } + spin_unlock(&udc->lock); + if (udc->driver->setup(&udc->gadget, + &udc->local_setup_buff) < 0) + qe_ep0_stall(udc); + spin_lock(&udc->lock); + } else { + /* No data phase, IN status from gadget */ + udc->ep0_dir = USB_DIR_IN; + spin_unlock(&udc->lock); + if (udc->driver->setup(&udc->gadget, + &udc->local_setup_buff) < 0) + qe_ep0_stall(udc); + spin_lock(&udc->lock); + udc->ep0_state = DATA_STATE_NEED_ZLP; + } +} + +/*------------------------------------------------------------------------- + USB Interrupt handlers + -------------------------------------------------------------------------*/ +static void suspend_irq(struct qe_udc *udc) +{ + udc->resume_state = udc->usb_state; + udc->usb_state = USB_STATE_SUSPENDED; + + /* report suspend to the driver ,serial.c not support this*/ + if (udc->driver->suspend) + udc->driver->suspend(&udc->gadget); +} + +static void resume_irq(struct qe_udc *udc) +{ + udc->usb_state = udc->resume_state; + udc->resume_state = 0; + + /* report resume to the driver , serial.c not support this*/ + if (udc->driver->resume) + udc->driver->resume(&udc->gadget); +} + +static void idle_irq(struct qe_udc *udc) +{ + u8 usbs; + + usbs = in_8(&udc->usb_regs->usb_usbs); + if (usbs & USB_IDLE_STATUS_MASK) { + if ((udc->usb_state) != USB_STATE_SUSPENDED) + suspend_irq(udc); + } else { + if (udc->usb_state == USB_STATE_SUSPENDED) + resume_irq(udc); + } +} + +static int reset_irq(struct qe_udc *udc) +{ + unsigned char i; + + qe_usb_disable(); + out_8(&udc->usb_regs->usb_usadr, 0); + + for (i = 0; i < USB_MAX_ENDPOINTS; i++) { + if (udc->eps[i].init) + qe_ep_reset(udc, i); + } + + reset_queues(udc); + udc->usb_state = USB_STATE_DEFAULT; + udc->ep0_state = WAIT_FOR_SETUP; + udc->ep0_dir = USB_DIR_OUT; + qe_usb_enable(); + return 0; +} + +static int bsy_irq(struct qe_udc *udc) +{ + return 0; +} + +static int txe_irq(struct qe_udc *udc) +{ + return 0; +} + +/* ep0 tx interrupt also in here */ +static int tx_irq(struct qe_udc *udc) +{ + struct qe_ep *ep; + struct qe_bd __iomem *bd; + int i, res = 0; + + if ((udc->usb_state == USB_STATE_ADDRESS) + && (in_8(&udc->usb_regs->usb_usadr) == 0)) + out_8(&udc->usb_regs->usb_usadr, udc->device_address); + + for (i = (USB_MAX_ENDPOINTS-1); ((i >= 0) && (res == 0)); i--) { + ep = &udc->eps[i]; + if (ep && ep->init && (ep->dir != USB_DIR_OUT)) { + bd = ep->c_txbd; + if (!(in_be32((u32 __iomem *)bd) & T_R) + && (in_be32(&bd->buf))) { + /* confirm the transmitted bd */ + if (ep->epnum == 0) + res = qe_ep0_txconf(ep); + else + res = qe_ep_txconf(ep); + } + } + } + return res; +} + + +/* setup packect's rx is handle in the function too */ +static void rx_irq(struct qe_udc *udc) +{ + struct qe_ep *ep; + struct qe_bd __iomem *bd; + int i; + + for (i = 0; i < USB_MAX_ENDPOINTS; i++) { + ep = &udc->eps[i]; + if (ep && ep->init && (ep->dir != USB_DIR_IN)) { + bd = ep->n_rxbd; + if (!(in_be32((u32 __iomem *)bd) & R_E) + && (in_be32(&bd->buf))) { + if (ep->epnum == 0) { + qe_ep0_rx(udc); + } else { + /*non-setup package receive*/ + qe_ep_rx(ep); + } + } + } + } +} + +static irqreturn_t qe_udc_irq(int irq, void *_udc) +{ + struct qe_udc *udc = (struct qe_udc *)_udc; + u16 irq_src; + irqreturn_t status = IRQ_NONE; + unsigned long flags; + + spin_lock_irqsave(&udc->lock, flags); + + irq_src = in_be16(&udc->usb_regs->usb_usber) & + in_be16(&udc->usb_regs->usb_usbmr); + /* Clear notification bits */ + out_be16(&udc->usb_regs->usb_usber, irq_src); + /* USB Interrupt */ + if (irq_src & USB_E_IDLE_MASK) { + idle_irq(udc); + irq_src &= ~USB_E_IDLE_MASK; + status = IRQ_HANDLED; + } + + if (irq_src & USB_E_TXB_MASK) { + tx_irq(udc); + irq_src &= ~USB_E_TXB_MASK; + status = IRQ_HANDLED; + } + + if (irq_src & USB_E_RXB_MASK) { + rx_irq(udc); + irq_src &= ~USB_E_RXB_MASK; + status = IRQ_HANDLED; + } + + if (irq_src & USB_E_RESET_MASK) { + reset_irq(udc); + irq_src &= ~USB_E_RESET_MASK; + status = IRQ_HANDLED; + } + + if (irq_src & USB_E_BSY_MASK) { + bsy_irq(udc); + irq_src &= ~USB_E_BSY_MASK; + status = IRQ_HANDLED; + } + + if (irq_src & USB_E_TXE_MASK) { + txe_irq(udc); + irq_src &= ~USB_E_TXE_MASK; + status = IRQ_HANDLED; + } + + spin_unlock_irqrestore(&udc->lock, flags); + + return status; +} + +/*------------------------------------------------------------------------- + Gadget driver register and unregister. + --------------------------------------------------------------------------*/ +int usb_gadget_register_driver(struct usb_gadget_driver *driver) +{ + int retval; + unsigned long flags = 0; + + /* standard operations */ + if (!udc_controller) + return -ENODEV; + + if (!driver || (driver->speed != USB_SPEED_FULL + && driver->speed != USB_SPEED_HIGH) + || !driver->bind || !driver->disconnect + || !driver->setup) + return -EINVAL; + + if (udc_controller->driver) + return -EBUSY; + + /* lock is needed but whether should use this lock or another */ + spin_lock_irqsave(&udc_controller->lock, flags); + + driver->driver.bus = NULL; + /* hook up the driver */ + udc_controller->driver = driver; + udc_controller->gadget.dev.driver = &driver->driver; + udc_controller->gadget.speed = (enum usb_device_speed)(driver->speed); + spin_unlock_irqrestore(&udc_controller->lock, flags); + + retval = driver->bind(&udc_controller->gadget); + if (retval) { + dev_err(udc_controller->dev, "bind to %s --> %d", + driver->driver.name, retval); + udc_controller->gadget.dev.driver = NULL; + udc_controller->driver = NULL; + return retval; + } + + /* Enable IRQ reg and Set usbcmd reg EN bit */ + qe_usb_enable(); + + out_be16(&udc_controller->usb_regs->usb_usber, 0xffff); + out_be16(&udc_controller->usb_regs->usb_usbmr, USB_E_DEFAULT_DEVICE); + udc_controller->usb_state = USB_STATE_ATTACHED; + udc_controller->ep0_state = WAIT_FOR_SETUP; + udc_controller->ep0_dir = USB_DIR_OUT; + dev_info(udc_controller->dev, "%s bind to driver %s \n", + udc_controller->gadget.name, driver->driver.name); + return 0; +} +EXPORT_SYMBOL(usb_gadget_register_driver); + +int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +{ + struct qe_ep *loop_ep; + unsigned long flags; + + if (!udc_controller) + return -ENODEV; + + if (!driver || driver != udc_controller->driver) + return -EINVAL; + + /* stop usb controller, disable intr */ + qe_usb_disable(); + + /* in fact, no needed */ + udc_controller->usb_state = USB_STATE_ATTACHED; + udc_controller->ep0_state = WAIT_FOR_SETUP; + udc_controller->ep0_dir = 0; + + /* stand operation */ + spin_lock_irqsave(&udc_controller->lock, flags); + udc_controller->gadget.speed = USB_SPEED_UNKNOWN; + nuke(&udc_controller->eps[0], -ESHUTDOWN); + list_for_each_entry(loop_ep, &udc_controller->gadget.ep_list, + ep.ep_list) + nuke(loop_ep, -ESHUTDOWN); + spin_unlock_irqrestore(&udc_controller->lock, flags); + + /* unbind gadget and unhook driver. */ + driver->unbind(&udc_controller->gadget); + udc_controller->gadget.dev.driver = NULL; + udc_controller->driver = NULL; + + dev_info(udc_controller->dev, "unregistered gadget driver '%s'\r\n", + driver->driver.name); + return 0; +} +EXPORT_SYMBOL(usb_gadget_unregister_driver); + +/* udc structure's alloc and setup, include ep-param alloc */ +static struct qe_udc __devinit *qe_udc_config(struct of_device *ofdev) +{ + struct qe_udc *udc; + struct device_node *np = ofdev->node; + unsigned int tmp_addr = 0; + struct usb_device_para __iomem *usbpram; + unsigned int i; + u64 size; + u32 offset; + + udc = kzalloc(sizeof(*udc), GFP_KERNEL); + if (udc == NULL) { + dev_err(&ofdev->dev, "malloc udc failed\n"); + goto cleanup; + } + + udc->dev = &ofdev->dev; + + /* get default address of usb parameter in MURAM from device tree */ + offset = *of_get_address(np, 1, &size, NULL); + udc->usb_param = cpm_muram_addr(offset); + memset_io(udc->usb_param, 0, size); + + usbpram = udc->usb_param; + out_be16(&usbpram->frame_n, 0); + out_be32(&usbpram->rstate, 0); + + tmp_addr = cpm_muram_alloc((USB_MAX_ENDPOINTS * + sizeof(struct usb_ep_para)), + USB_EP_PARA_ALIGNMENT); + + for (i = 0; i < USB_MAX_ENDPOINTS; i++) { + out_be16(&usbpram->epptr[i], (u16)tmp_addr); + udc->ep_param[i] = cpm_muram_addr(tmp_addr); + tmp_addr += 32; + } + + memset_io(udc->ep_param[0], 0, + USB_MAX_ENDPOINTS * sizeof(struct usb_ep_para)); + + udc->resume_state = USB_STATE_NOTATTACHED; + udc->usb_state = USB_STATE_POWERED; + udc->ep0_dir = 0; + + spin_lock_init(&udc->lock); + return udc; + +cleanup: + kfree(udc); + return NULL; +} + +/* USB Controller register init */ +static int __devinit qe_udc_reg_init(struct qe_udc *udc) +{ + struct usb_ctlr __iomem *qe_usbregs; + qe_usbregs = udc->usb_regs; + + /* Init the usb register */ + out_8(&qe_usbregs->usb_usmod, 0x01); + out_be16(&qe_usbregs->usb_usbmr, 0); + out_8(&qe_usbregs->usb_uscom, 0); + out_be16(&qe_usbregs->usb_usber, USBER_ALL_CLEAR); + + return 0; +} + +static int __devinit qe_ep_config(struct qe_udc *udc, unsigned char pipe_num) +{ + struct qe_ep *ep = &udc->eps[pipe_num]; + + ep->udc = udc; + strcpy(ep->name, ep_name[pipe_num]); + ep->ep.name = ep_name[pipe_num]; + + ep->ep.ops = &qe_ep_ops; + ep->stopped = 1; + ep->ep.maxpacket = (unsigned short) ~0; + ep->desc = NULL; + ep->dir = 0xff; + ep->epnum = (u8)pipe_num; + ep->sent = 0; + ep->last = 0; + ep->init = 0; + ep->rxframe = NULL; + ep->txframe = NULL; + ep->tx_req = NULL; + ep->state = EP_STATE_IDLE; + ep->has_data = 0; + + /* the queue lists any req for this ep */ + INIT_LIST_HEAD(&ep->queue); + + /* gagdet.ep_list used for ep_autoconfig so no ep0*/ + if (pipe_num != 0) + list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list); + + ep->gadget = &udc->gadget; + + return 0; +} + +/*----------------------------------------------------------------------- + * UDC device Driver operation functions * + *----------------------------------------------------------------------*/ +static void qe_udc_release(struct device *dev) +{ + int i = 0; + + complete(udc_controller->done); + cpm_muram_free(cpm_muram_offset(udc_controller->ep_param[0])); + for (i = 0; i < USB_MAX_ENDPOINTS; i++) + udc_controller->ep_param[i] = NULL; + + kfree(udc_controller); + udc_controller = NULL; +} + +/* Driver probe functions */ +static int __devinit qe_udc_probe(struct of_device *ofdev, + const struct of_device_id *match) +{ + struct device_node *np = ofdev->node; + struct qe_ep *ep; + unsigned int ret = 0; + unsigned int i; + const void *prop; + + prop = of_get_property(np, "mode", NULL); + if (!prop || strcmp(prop, "peripheral")) + return -ENODEV; + + /* Initialize the udc structure including QH member and other member */ + udc_controller = qe_udc_config(ofdev); + if (!udc_controller) { + dev_dbg(&ofdev->dev, "udc_controll is NULL\n"); + return -ENOMEM; + } + + udc_controller->soc_type = (unsigned long)match->data; + udc_controller->usb_regs = of_iomap(np, 0); + if (!udc_controller->usb_regs) { + ret = -ENOMEM; + goto err1; + } + + /* initialize usb hw reg except for regs for EP, + * leave usbintr reg untouched*/ + qe_udc_reg_init(udc_controller); + + /* here comes the stand operations for probe + * set the qe_udc->gadget.xxx */ + udc_controller->gadget.ops = &qe_gadget_ops; + + /* gadget.ep0 is a pointer */ + udc_controller->gadget.ep0 = &udc_controller->eps[0].ep; + + INIT_LIST_HEAD(&udc_controller->gadget.ep_list); + + /* modify in register gadget process */ + udc_controller->gadget.speed = USB_SPEED_UNKNOWN; + + /* name: Identifies the controller hardware type. */ + udc_controller->gadget.name = driver_name; + + device_initialize(&udc_controller->gadget.dev); + + strcpy(udc_controller->gadget.dev.bus_id, "gadget"); + + udc_controller->gadget.dev.release = qe_udc_release; + udc_controller->gadget.dev.parent = &ofdev->dev; + + /* initialize qe_ep struct */ + for (i = 0; i < USB_MAX_ENDPOINTS ; i++) { + /* because the ep type isn't decide here so + * qe_ep_init() should be called in ep_enable() */ + + /* setup the qe_ep struct and link ep.ep.list + * into gadget.ep_list */ + qe_ep_config(udc_controller, (unsigned char)i); + } + + /* ep0 initialization in here */ + ret = qe_ep_init(udc_controller, 0, &qe_ep0_desc); + if (ret) + goto err2; + + /* create a buf for ZLP send, need to remain zeroed */ + udc_controller->nullbuf = kzalloc(256, GFP_KERNEL); + if (udc_controller->nullbuf == NULL) { + dev_dbg(udc_controller->dev, "cannot alloc nullbuf\n"); + ret = -ENOMEM; + goto err3; + } + + /* buffer for data of get_status request */ + udc_controller->statusbuf = kzalloc(2, GFP_KERNEL); + if (udc_controller->statusbuf == NULL) { + ret = -ENOMEM; + goto err4; + } + + udc_controller->nullp = virt_to_phys((void *)udc_controller->nullbuf); + if (udc_controller->nullp == DMA_ADDR_INVALID) { + udc_controller->nullp = dma_map_single( + udc_controller->gadget.dev.parent, + udc_controller->nullbuf, + 256, + DMA_TO_DEVICE); + udc_controller->nullmap = 1; + } else { + dma_sync_single_for_device(udc_controller->gadget.dev.parent, + udc_controller->nullp, 256, + DMA_TO_DEVICE); + } + + tasklet_init(&udc_controller->rx_tasklet, ep_rx_tasklet, + (unsigned long)udc_controller); + /* request irq and disable DR */ + udc_controller->usb_irq = irq_of_parse_and_map(np, 0); + + ret = request_irq(udc_controller->usb_irq, qe_udc_irq, 0, + driver_name, udc_controller); + if (ret) { + dev_err(udc_controller->dev, "cannot request irq %d err %d \n", + udc_controller->usb_irq, ret); + goto err5; + } + + ret = device_add(&udc_controller->gadget.dev); + if (ret) + goto err6; + + dev_info(udc_controller->dev, + "%s USB controller initialized as device\n", + (udc_controller->soc_type == PORT_QE) ? "QE" : "CPM"); + return 0; + +err6: + free_irq(udc_controller->usb_irq, udc_controller); +err5: + if (udc_controller->nullmap) { + dma_unmap_single(udc_controller->gadget.dev.parent, + udc_controller->nullp, 256, + DMA_TO_DEVICE); + udc_controller->nullp = DMA_ADDR_INVALID; + } else { + dma_sync_single_for_cpu(udc_controller->gadget.dev.parent, + udc_controller->nullp, 256, + DMA_TO_DEVICE); + } + kfree(udc_controller->statusbuf); +err4: + kfree(udc_controller->nullbuf); +err3: + ep = &udc_controller->eps[0]; + cpm_muram_free(cpm_muram_offset(ep->rxbase)); + kfree(ep->rxframe); + kfree(ep->rxbuffer); + kfree(ep->txframe); +err2: + iounmap(udc_controller->usb_regs); +err1: + kfree(udc_controller); + + return ret; +} + +#ifdef CONFIG_PM +static int qe_udc_suspend(struct of_device *dev, pm_message_t state) +{ + return -ENOTSUPP; +} + +static int qe_udc_resume(struct of_device *dev) +{ + return -ENOTSUPP; +} +#endif + +static int __devexit qe_udc_remove(struct of_device *ofdev) +{ + struct qe_ep *ep; + unsigned int size; + + DECLARE_COMPLETION(done); + + if (!udc_controller) + return -ENODEV; + + udc_controller->done = &done; + tasklet_disable(&udc_controller->rx_tasklet); + + if (udc_controller->nullmap) { + dma_unmap_single(udc_controller->gadget.dev.parent, + udc_controller->nullp, 256, + DMA_TO_DEVICE); + udc_controller->nullp = DMA_ADDR_INVALID; + } else { + dma_sync_single_for_cpu(udc_controller->gadget.dev.parent, + udc_controller->nullp, 256, + DMA_TO_DEVICE); + } + kfree(udc_controller->statusbuf); + kfree(udc_controller->nullbuf); + + ep = &udc_controller->eps[0]; + cpm_muram_free(cpm_muram_offset(ep->rxbase)); + size = (ep->ep.maxpacket + USB_CRC_SIZE + 2) * (USB_BDRING_LEN + 1); + + kfree(ep->rxframe); + if (ep->rxbufmap) { + dma_unmap_single(udc_controller->gadget.dev.parent, + ep->rxbuf_d, size, + DMA_FROM_DEVICE); + ep->rxbuf_d = DMA_ADDR_INVALID; + } else { + dma_sync_single_for_cpu(udc_controller->gadget.dev.parent, + ep->rxbuf_d, size, + DMA_FROM_DEVICE); + } + + kfree(ep->rxbuffer); + kfree(ep->txframe); + + free_irq(udc_controller->usb_irq, udc_controller); + + tasklet_kill(&udc_controller->rx_tasklet); + + iounmap(udc_controller->usb_regs); + + device_unregister(&udc_controller->gadget.dev); + /* wait for release() of gadget.dev to free udc */ + wait_for_completion(&done); + + return 0; +} + +/*-------------------------------------------------------------------------*/ +static struct of_device_id __devinitdata qe_udc_match[] = { + { + .compatible = "fsl,mpc8360-qe-usb", + .data = (void *)PORT_QE, + }, + { + .compatible = "fsl,mpc8272-cpm-usb", + .data = (void *)PORT_CPM, + }, + {}, +}; + +MODULE_DEVICE_TABLE(of, qe_udc_match); + +static struct of_platform_driver udc_driver = { + .name = (char *)driver_name, + .match_table = qe_udc_match, + .probe = qe_udc_probe, + .remove = __devexit_p(qe_udc_remove), +#ifdef CONFIG_PM + .suspend = qe_udc_suspend, + .resume = qe_udc_resume, +#endif +}; + +static int __init qe_udc_init(void) +{ + printk(KERN_INFO "%s: %s, %s\n", driver_name, driver_desc, + DRIVER_VERSION); + return of_register_platform_driver(&udc_driver); +} + +static void __exit qe_udc_exit(void) +{ + of_unregister_platform_driver(&udc_driver); +} + +module_init(qe_udc_init); +module_exit(qe_udc_exit); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_LICENSE("GPL"); + diff --git a/drivers/usb/gadget/fsl_qe_udc.h b/drivers/usb/gadget/fsl_qe_udc.h new file mode 100644 index 000000000000..31b2710882e4 --- /dev/null +++ b/drivers/usb/gadget/fsl_qe_udc.h @@ -0,0 +1,437 @@ +/* + * drivers/usb/gadget/qe_udc.h + * + * Copyright (C) 2006-2008 Freescale Semiconductor, Inc. All rights reserved. + * + * Xiaobo Xie <X.Xie@freescale.com> + * Li Yang <leoli@freescale.com> + * + * Description: + * Freescale USB device/endpoint management registers + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at + * your option) any later version. + */ + +#ifndef __FSL_QE_UDC_H +#define __FSL_QE_UDC_H + +/* SoC type */ +#define PORT_CPM 0 +#define PORT_QE 1 + +#define USB_MAX_ENDPOINTS 4 +#define USB_MAX_PIPES USB_MAX_ENDPOINTS +#define USB_EP0_MAX_SIZE 64 +#define USB_MAX_CTRL_PAYLOAD 0x4000 +#define USB_BDRING_LEN 16 +#define USB_BDRING_LEN_RX 256 +#define USB_BDRING_LEN_TX 16 +#define MIN_EMPTY_BDS 128 +#define MAX_DATA_BDS 8 +#define USB_CRC_SIZE 2 +#define USB_DIR_BOTH 0x88 +#define R_BUF_MAXSIZE 0x800 +#define USB_EP_PARA_ALIGNMENT 32 + +/* USB Mode Register bit define */ +#define USB_MODE_EN 0x01 +#define USB_MODE_HOST 0x02 +#define USB_MODE_TEST 0x04 +#define USB_MODE_SFTE 0x08 +#define USB_MODE_RESUME 0x40 +#define USB_MODE_LSS 0x80 + +/* USB Slave Address Register Mask */ +#define USB_SLVADDR_MASK 0x7F + +/* USB Endpoint register define */ +#define USB_EPNUM_MASK 0xF000 +#define USB_EPNUM_SHIFT 12 + +#define USB_TRANS_MODE_SHIFT 8 +#define USB_TRANS_CTR 0x0000 +#define USB_TRANS_INT 0x0100 +#define USB_TRANS_BULK 0x0200 +#define USB_TRANS_ISO 0x0300 + +#define USB_EP_MF 0x0020 +#define USB_EP_RTE 0x0010 + +#define USB_THS_SHIFT 2 +#define USB_THS_MASK 0x000c +#define USB_THS_NORMAL 0x0 +#define USB_THS_IGNORE_IN 0x0004 +#define USB_THS_NACK 0x0008 +#define USB_THS_STALL 0x000c + +#define USB_RHS_SHIFT 0 +#define USB_RHS_MASK 0x0003 +#define USB_RHS_NORMAL 0x0 +#define USB_RHS_IGNORE_OUT 0x0001 +#define USB_RHS_NACK 0x0002 +#define USB_RHS_STALL 0x0003 + +#define USB_RTHS_MASK 0x000f + +/* USB Command Register define */ +#define USB_CMD_STR_FIFO 0x80 +#define USB_CMD_FLUSH_FIFO 0x40 +#define USB_CMD_ISFT 0x20 +#define USB_CMD_DSFT 0x10 +#define USB_CMD_EP_MASK 0x03 + +/* USB Event and Mask Register define */ +#define USB_E_MSF_MASK 0x0800 +#define USB_E_SFT_MASK 0x0400 +#define USB_E_RESET_MASK 0x0200 +#define USB_E_IDLE_MASK 0x0100 +#define USB_E_TXE4_MASK 0x0080 +#define USB_E_TXE3_MASK 0x0040 +#define USB_E_TXE2_MASK 0x0020 +#define USB_E_TXE1_MASK 0x0010 +#define USB_E_SOF_MASK 0x0008 +#define USB_E_BSY_MASK 0x0004 +#define USB_E_TXB_MASK 0x0002 +#define USB_E_RXB_MASK 0x0001 +#define USBER_ALL_CLEAR 0x0fff + +#define USB_E_DEFAULT_DEVICE (USB_E_RESET_MASK | USB_E_TXE4_MASK | \ + USB_E_TXE3_MASK | USB_E_TXE2_MASK | \ + USB_E_TXE1_MASK | USB_E_BSY_MASK | \ + USB_E_TXB_MASK | USB_E_RXB_MASK) + +#define USB_E_TXE_MASK (USB_E_TXE4_MASK | USB_E_TXE3_MASK|\ + USB_E_TXE2_MASK | USB_E_TXE1_MASK) +/* USB Status Register define */ +#define USB_IDLE_STATUS_MASK 0x01 + +/* USB Start of Frame Timer */ +#define USB_USSFT_MASK 0x3FFF + +/* USB Frame Number Register */ +#define USB_USFRN_MASK 0xFFFF + +struct usb_device_para{ + u16 epptr[4]; + u32 rstate; + u32 rptr; + u16 frame_n; + u16 rbcnt; + u32 rtemp; + u32 rxusb_data; + u16 rxuptr; + u8 reso[2]; + u32 softbl; + u8 sofucrctemp; +}; + +struct usb_ep_para{ + u16 rbase; + u16 tbase; + u8 rbmr; + u8 tbmr; + u16 mrblr; + u16 rbptr; + u16 tbptr; + u32 tstate; + u32 tptr; + u16 tcrc; + u16 tbcnt; + u32 ttemp; + u16 txusbu_ptr; + u8 reserve[2]; +}; + +#define USB_BUSMODE_GBL 0x20 +#define USB_BUSMODE_BO_MASK 0x18 +#define USB_BUSMODE_BO_SHIFT 0x3 +#define USB_BUSMODE_BE 0x2 +#define USB_BUSMODE_CETM 0x04 +#define USB_BUSMODE_DTB 0x02 + +/* Endpoint basic handle */ +#define ep_index(EP) ((EP)->desc->bEndpointAddress & 0xF) +#define ep_maxpacket(EP) ((EP)->ep.maxpacket) +#define ep_is_in(EP) ((ep_index(EP) == 0) ? (EP->udc->ep0_dir == \ + USB_DIR_IN) : ((EP)->desc->bEndpointAddress \ + & USB_DIR_IN) == USB_DIR_IN) + +/* ep0 transfer state */ +#define WAIT_FOR_SETUP 0 +#define DATA_STATE_XMIT 1 +#define DATA_STATE_NEED_ZLP 2 +#define WAIT_FOR_OUT_STATUS 3 +#define DATA_STATE_RECV 4 + +/* ep tramsfer mode */ +#define USBP_TM_CTL 0 +#define USBP_TM_ISO 1 +#define USBP_TM_BULK 2 +#define USBP_TM_INT 3 + +/*----------------------------------------------------------------------------- + USB RX And TX DATA Frame + -----------------------------------------------------------------------------*/ +struct qe_frame{ + u8 *data; + u32 len; + u32 status; + u32 info; + + void *privdata; + struct list_head node; +}; + +/* Frame structure, info field. */ +#define PID_DATA0 0x80000000 /* Data toggle zero */ +#define PID_DATA1 0x40000000 /* Data toggle one */ +#define PID_SETUP 0x20000000 /* setup bit */ +#define SETUP_STATUS 0x10000000 /* setup status bit */ +#define SETADDR_STATUS 0x08000000 /* setupup address status bit */ +#define NO_REQ 0x04000000 /* Frame without request */ +#define HOST_DATA 0x02000000 /* Host data frame */ +#define FIRST_PACKET_IN_FRAME 0x01000000 /* first packet in the frame */ +#define TOKEN_FRAME 0x00800000 /* Host token frame */ +#define ZLP 0x00400000 /* Zero length packet */ +#define IN_TOKEN_FRAME 0x00200000 /* In token package */ +#define OUT_TOKEN_FRAME 0x00100000 /* Out token package */ +#define SETUP_TOKEN_FRAME 0x00080000 /* Setup token package */ +#define STALL_FRAME 0x00040000 /* Stall handshake */ +#define NACK_FRAME 0x00020000 /* Nack handshake */ +#define NO_PID 0x00010000 /* No send PID */ +#define NO_CRC 0x00008000 /* No send CRC */ +#define HOST_COMMAND 0x00004000 /* Host command frame */ + +/* Frame status field */ +/* Receive side */ +#define FRAME_OK 0x00000000 /* Frame tranmitted or received OK */ +#define FRAME_ERROR 0x80000000 /* Error occured on frame */ +#define START_FRAME_LOST 0x40000000 /* START_FRAME_LOST */ +#define END_FRAME_LOST 0x20000000 /* END_FRAME_LOST */ +#define RX_ER_NONOCT 0x10000000 /* Rx Non Octet Aligned Packet */ +#define RX_ER_BITSTUFF 0x08000000 /* Frame Aborted --Received packet + with bit stuff error */ +#define RX_ER_CRC 0x04000000 /* Received packet with CRC error */ +#define RX_ER_OVERUN 0x02000000 /* Over-run occured on reception */ +#define RX_ER_PID 0x01000000 /* Wrong PID received */ +/* Tranmit side */ +#define TX_ER_NAK 0x00800000 /* Received NAK handshake */ +#define TX_ER_STALL 0x00400000 /* Received STALL handshake */ +#define TX_ER_TIMEOUT 0x00200000 /* Transmit time out */ +#define TX_ER_UNDERUN 0x00100000 /* Transmit underrun */ +#define FRAME_INPROGRESS 0x00080000 /* Frame is being transmitted */ +#define ER_DATA_UNDERUN 0x00040000 /* Frame is shorter then expected */ +#define ER_DATA_OVERUN 0x00020000 /* Frame is longer then expected */ + +/* QE USB frame operation functions */ +#define frame_get_length(frm) (frm->len) +#define frame_set_length(frm, leng) (frm->len = leng) +#define frame_get_data(frm) (frm->data) +#define frame_set_data(frm, dat) (frm->data = dat) +#define frame_get_info(frm) (frm->info) +#define frame_set_info(frm, inf) (frm->info = inf) +#define frame_get_status(frm) (frm->status) +#define frame_set_status(frm, stat) (frm->status = stat) +#define frame_get_privdata(frm) (frm->privdata) +#define frame_set_privdata(frm, dat) (frm->privdata = dat) + +static inline void qe_frame_clean(struct qe_frame *frm) +{ + frame_set_data(frm, NULL); + frame_set_length(frm, 0); + frame_set_status(frm, FRAME_OK); + frame_set_info(frm, 0); + frame_set_privdata(frm, NULL); +} + +static inline void qe_frame_init(struct qe_frame *frm) +{ + qe_frame_clean(frm); + INIT_LIST_HEAD(&(frm->node)); +} + +struct qe_req { + struct usb_request req; + struct list_head queue; + /* ep_queue() func will add + a request->queue into a udc_ep->queue 'd tail */ + struct qe_ep *ep; + unsigned mapped:1; +}; + +struct qe_ep { + struct usb_ep ep; + struct list_head queue; + struct qe_udc *udc; + const struct usb_endpoint_descriptor *desc; + struct usb_gadget *gadget; + + u8 state; + + struct qe_bd __iomem *rxbase; + struct qe_bd __iomem *n_rxbd; + struct qe_bd __iomem *e_rxbd; + + struct qe_bd __iomem *txbase; + struct qe_bd __iomem *n_txbd; + struct qe_bd __iomem *c_txbd; + + struct qe_frame *rxframe; + u8 *rxbuffer; + dma_addr_t rxbuf_d; + u8 rxbufmap; + unsigned char localnack; + int has_data; + + struct qe_frame *txframe; + struct qe_req *tx_req; + int sent; /*data already sent */ + int last; /*data sent in the last time*/ + + u8 dir; + u8 epnum; + u8 tm; /* transfer mode */ + u8 data01; + u8 init; + + u8 already_seen; + u8 enable_tasklet; + u8 setup_stage; + u32 last_io; /* timestamp */ + + char name[14]; + + unsigned double_buf:1; + unsigned stopped:1; + unsigned fnf:1; + unsigned has_dma:1; + + u8 ackwait; + u8 dma_channel; + u16 dma_counter; + int lch; + + struct timer_list timer; +}; + +struct qe_udc { + struct usb_gadget gadget; + struct usb_gadget_driver *driver; + struct device *dev; + struct qe_ep eps[USB_MAX_ENDPOINTS]; + struct usb_ctrlrequest local_setup_buff; + spinlock_t lock; /* lock for set/config qe_udc */ + unsigned long soc_type; /* QE or CPM soc */ + + struct qe_req *status_req; /* ep0 status request */ + + /* USB and EP Parameter Block pointer */ + struct usb_device_para __iomem *usb_param; + struct usb_ep_para __iomem *ep_param[4]; + + u32 max_pipes; /* Device max pipes */ + u32 max_use_endpts; /* Max endpointes to be used */ + u32 bus_reset; /* Device is bus reseting */ + u32 resume_state; /* USB state to resume*/ + u32 usb_state; /* USB current state */ + u32 usb_next_state; /* USB next state */ + u32 ep0_state; /* Enpoint zero state */ + u32 ep0_dir; /* Enpoint zero direction: can be + USB_DIR_IN or USB_DIR_OUT*/ + u32 usb_sof_count; /* SOF count */ + u32 errors; /* USB ERRORs count */ + + u8 *tmpbuf; + u32 c_start; + u32 c_end; + + u8 *nullbuf; + u8 *statusbuf; + dma_addr_t nullp; + u8 nullmap; + u8 device_address; /* Device USB address */ + + unsigned int usb_clock; + unsigned int usb_irq; + struct usb_ctlr __iomem *usb_regs; + + struct tasklet_struct rx_tasklet; + + struct completion *done; /* to make sure release() is done */ +}; + +#define EP_STATE_IDLE 0 +#define EP_STATE_NACK 1 +#define EP_STATE_STALL 2 + +/* + * transmit BD's status + */ +#define T_R 0x80000000 /* ready bit */ +#define T_W 0x20000000 /* wrap bit */ +#define T_I 0x10000000 /* interrupt on completion */ +#define T_L 0x08000000 /* last */ +#define T_TC 0x04000000 /* transmit CRC */ +#define T_CNF 0x02000000 /* wait for transmit confirm */ +#define T_LSP 0x01000000 /* Low-speed transaction */ +#define T_PID 0x00c00000 /* packet id */ +#define T_NAK 0x00100000 /* No ack. */ +#define T_STAL 0x00080000 /* Stall recieved */ +#define T_TO 0x00040000 /* time out */ +#define T_UN 0x00020000 /* underrun */ + +#define DEVICE_T_ERROR (T_UN | T_TO) +#define HOST_T_ERROR (T_UN | T_TO | T_NAK | T_STAL) +#define DEVICE_T_BD_MASK DEVICE_T_ERROR +#define HOST_T_BD_MASK HOST_T_ERROR + +#define T_PID_SHIFT 6 +#define T_PID_DATA0 0x00800000 /* Data 0 toggle */ +#define T_PID_DATA1 0x00c00000 /* Data 1 toggle */ + +/* + * receive BD's status + */ +#define R_E 0x80000000 /* buffer empty */ +#define R_W 0x20000000 /* wrap bit */ +#define R_I 0x10000000 /* interrupt on reception */ +#define R_L 0x08000000 /* last */ +#define R_F 0x04000000 /* first */ +#define R_PID 0x00c00000 /* packet id */ +#define R_NO 0x00100000 /* Rx Non Octet Aligned Packet */ +#define R_AB 0x00080000 /* Frame Aborted */ +#define R_CR 0x00040000 /* CRC Error */ +#define R_OV 0x00020000 /* Overrun */ + +#define R_ERROR (R_NO | R_AB | R_CR | R_OV) +#define R_BD_MASK R_ERROR + +#define R_PID_DATA0 0x00000000 +#define R_PID_DATA1 0x00400000 +#define R_PID_SETUP 0x00800000 + +#define CPM_USB_STOP_TX 0x2e600000 +#define CPM_USB_RESTART_TX 0x2e600000 +#define CPM_USB_STOP_TX_OPCODE 0x0a +#define CPM_USB_RESTART_TX_OPCODE 0x0b +#define CPM_USB_EP_SHIFT 5 + +#ifndef CONFIG_CPM +inline int cpm_command(u32 command, u8 opcode) +{ + return -EOPNOTSUPP; +} +#endif + +#ifndef CONFIG_QUICC_ENGINE +inline int qe_issue_cmd(u32 cmd, u32 device, u8 mcn_protocol, + u32 cmd_input) +{ + return -EOPNOTSUPP; +} +#endif + +#endif /* __FSL_QE_UDC_H */ diff --git a/drivers/usb/gadget/fsl_usb2_udc.c b/drivers/usb/gadget/fsl_usb2_udc.c index 45ad556169f1..091bb55c9aa7 100644 --- a/drivers/usb/gadget/fsl_usb2_udc.c +++ b/drivers/usb/gadget/fsl_usb2_udc.c @@ -23,11 +23,8 @@ #include <linux/ioport.h> #include <linux/types.h> #include <linux/errno.h> -#include <linux/delay.h> -#include <linux/sched.h> #include <linux/slab.h> #include <linux/init.h> -#include <linux/timer.h> #include <linux/list.h> #include <linux/interrupt.h> #include <linux/proc_fs.h> @@ -44,11 +41,9 @@ #include <asm/byteorder.h> #include <asm/io.h> -#include <asm/irq.h> #include <asm/system.h> #include <asm/unaligned.h> #include <asm/dma.h> -#include <asm/cacheflush.h> #include "fsl_usb2_udc.h" @@ -61,8 +56,8 @@ static const char driver_name[] = "fsl-usb2-udc"; static const char driver_desc[] = DRIVER_DESC; -volatile static struct usb_dr_device *dr_regs = NULL; -volatile static struct usb_sys_interface *usb_sys_regs = NULL; +static struct usb_dr_device *dr_regs; +static struct usb_sys_interface *usb_sys_regs; /* it is initialized in probe() */ static struct fsl_udc *udc_controller = NULL; @@ -76,16 +71,14 @@ fsl_ep0_desc = { .wMaxPacketSize = USB_MAX_CTRL_PAYLOAD, }; -static int fsl_udc_suspend(struct platform_device *pdev, pm_message_t state); -static int fsl_udc_resume(struct platform_device *pdev); static void fsl_ep_fifo_flush(struct usb_ep *_ep); #ifdef CONFIG_PPC32 #define fsl_readl(addr) in_le32(addr) -#define fsl_writel(addr, val32) out_le32(val32, addr) +#define fsl_writel(val32, addr) out_le32(addr, val32) #else #define fsl_readl(addr) readl(addr) -#define fsl_writel(addr, val32) writel(addr, val32) +#define fsl_writel(val32, addr) writel(val32, addr) #endif /******************************************************************** @@ -185,10 +178,6 @@ static int dr_controller_setup(struct fsl_udc *udc) unsigned long timeout; #define FSL_UDC_RESET_TIMEOUT 1000 - /* before here, make sure dr_regs has been initialized */ - if (!udc) - return -EINVAL; - /* Stop and reset the usb controller */ tmp = fsl_readl(&dr_regs->usbcmd); tmp &= ~USB_CMD_RUN_STOP; @@ -202,7 +191,7 @@ static int dr_controller_setup(struct fsl_udc *udc) timeout = jiffies + FSL_UDC_RESET_TIMEOUT; while (fsl_readl(&dr_regs->usbcmd) & USB_CMD_CTRL_RESET) { if (time_after(jiffies, timeout)) { - ERR("udc reset timeout! \n"); + ERR("udc reset timeout!\n"); return -ETIMEDOUT; } cpu_relax(); @@ -315,7 +304,8 @@ static void dr_controller_stop(struct fsl_udc *udc) return; } -void dr_ep_setup(unsigned char ep_num, unsigned char dir, unsigned char ep_type) +static void dr_ep_setup(unsigned char ep_num, unsigned char dir, + unsigned char ep_type) { unsigned int tmp_epctrl = 0; @@ -563,7 +553,7 @@ static int fsl_ep_disable(struct usb_ep *_ep) /* nuke all pending requests (does flush) */ nuke(ep, -ESHUTDOWN); - ep->desc = 0; + ep->desc = NULL; ep->stopped = 1; spin_unlock_irqrestore(&udc->lock, flags); @@ -602,7 +592,7 @@ static void fsl_free_request(struct usb_ep *_ep, struct usb_request *_req) } /*-------------------------------------------------------------------------*/ -static int fsl_queue_td(struct fsl_ep *ep, struct fsl_req *req) +static void fsl_queue_td(struct fsl_ep *ep, struct fsl_req *req) { int i = ep_index(ep) * 2 + ep_is_in(ep); u32 temp, bitmask, tmp_stat; @@ -653,13 +643,16 @@ static int fsl_queue_td(struct fsl_ep *ep, struct fsl_req *req) | EP_QUEUE_HEAD_STATUS_HALT)); dQH->size_ioc_int_sts &= temp; + /* Ensure that updates to the QH will occure before priming. */ + wmb(); + /* Prime endpoint by writing 1 to ENDPTPRIME */ temp = ep_is_in(ep) ? (1 << (ep_index(ep) + 16)) : (1 << (ep_index(ep))); fsl_writel(temp, &dr_regs->endpointprime); out: - return 0; + return; } /* Fill in the dTD structure @@ -710,7 +703,7 @@ static struct ep_td_struct *fsl_build_dtd(struct fsl_req *req, unsigned *length, *is_last = 0; if ((*is_last) == 0) - VDBG("multi-dtd request!\n"); + VDBG("multi-dtd request!"); /* Fill in the transfer size; set active bit */ swap_temp = ((*length << DTD_LENGTH_BIT_POS) | DTD_STATUS_ACTIVE); @@ -773,11 +766,11 @@ fsl_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) /* catch various bogus parameters */ if (!_req || !req->req.complete || !req->req.buf || !list_empty(&req->queue)) { - VDBG("%s, bad params\n", __func__); + VDBG("%s, bad params", __func__); return -EINVAL; } if (unlikely(!_ep || !ep->desc)) { - VDBG("%s, bad ep\n", __func__); + VDBG("%s, bad ep", __func__); return -EINVAL; } if (ep->desc->bmAttributes == USB_ENDPOINT_XFER_ISOC) { @@ -1069,7 +1062,7 @@ static int fsl_vbus_session(struct usb_gadget *gadget, int is_active) udc = container_of(gadget, struct fsl_udc, gadget); spin_lock_irqsave(&udc->lock, flags); - VDBG("VBUS %s\n", is_active ? "on" : "off"); + VDBG("VBUS %s", is_active ? "on" : "off"); udc->vbus_active = (is_active != 0); if (can_pullup(udc)) fsl_writel((fsl_readl(&dr_regs->usbcmd) | USB_CMD_RUN_STOP), @@ -1146,7 +1139,6 @@ static int ep0_prime_status(struct fsl_udc *udc, int direction) { struct fsl_req *req = udc->status_req; struct fsl_ep *ep; - int status = 0; if (direction == EP_DIR_IN) udc->ep0_dir = USB_DIR_IN; @@ -1164,27 +1156,21 @@ static int ep0_prime_status(struct fsl_udc *udc, int direction) req->dtd_count = 0; if (fsl_req_to_dtd(req) == 0) - status = fsl_queue_td(ep, req); + fsl_queue_td(ep, req); else return -ENOMEM; - if (status) - ERR("Can't queue ep0 status request \n"); list_add_tail(&req->queue, &ep->queue); - return status; + return 0; } -static inline int udc_reset_ep_queue(struct fsl_udc *udc, u8 pipe) +static void udc_reset_ep_queue(struct fsl_udc *udc, u8 pipe) { struct fsl_ep *ep = get_ep_by_pipe(udc, pipe); - if (!ep->name) - return 0; - - nuke(ep, -ESHUTDOWN); - - return 0; + if (ep->name) + nuke(ep, -ESHUTDOWN); } /* @@ -1208,10 +1194,8 @@ static void ch9getstatus(struct fsl_udc *udc, u8 request_type, u16 value, u16 index, u16 length) { u16 tmp = 0; /* Status, cpu endian */ - struct fsl_req *req; struct fsl_ep *ep; - int status = 0; ep = &udc->eps[0]; @@ -1250,14 +1234,10 @@ static void ch9getstatus(struct fsl_udc *udc, u8 request_type, u16 value, /* prime the data phase */ if ((fsl_req_to_dtd(req) == 0)) - status = fsl_queue_td(ep, req); + fsl_queue_td(ep, req); else /* no mem */ goto stall; - if (status) { - ERR("Can't respond to getstatus request \n"); - goto stall; - } list_add_tail(&req->queue, &ep->queue); udc->ep0_state = DATA_STATE_XMIT; return; @@ -1397,7 +1377,7 @@ static void ep0_req_complete(struct fsl_udc *udc, struct fsl_ep *ep0, udc->ep0_state = WAIT_FOR_SETUP; break; case WAIT_FOR_SETUP: - ERR("Unexpect ep0 packets \n"); + ERR("Unexpect ep0 packets\n"); break; default: ep0stall(udc); @@ -1476,7 +1456,7 @@ static int process_ep_req(struct fsl_udc *udc, int pipe, status = -EILSEQ; break; } else - ERR("Unknown error has occured (0x%x)!\r\n", + ERR("Unknown error has occured (0x%x)!\n", errors); } else if (le32_to_cpu(curr_td->size_ioc_sts) @@ -1495,7 +1475,7 @@ static int process_ep_req(struct fsl_udc *udc, int pipe, } } else { td_complete++; - VDBG("dTD transmitted successful "); + VDBG("dTD transmitted successful"); } if (j != curr_req->dtd_count - 1) @@ -1568,9 +1548,6 @@ static void port_change_irq(struct fsl_udc *udc) { u32 speed; - if (udc->bus_reset) - udc->bus_reset = 0; - /* Bus resetting is finished */ if (!(fsl_readl(&dr_regs->portsc1) & PORTSCX_PORT_RESET)) { /* Get the speed */ @@ -1678,8 +1655,6 @@ static void reset_irq(struct fsl_udc *udc) if (fsl_readl(&dr_regs->portsc1) & PORTSCX_PORT_RESET) { VDBG("Bus reset"); - /* Bus is reseting */ - udc->bus_reset = 1; /* Reset all the queues, include XD, dTD, EP queue * head and TR Queue */ reset_queues(udc); @@ -1768,7 +1743,7 @@ static irqreturn_t fsl_udc_irq(int irq, void *_udc) } if (irq_src & (USB_STS_ERR | USB_STS_SYS_ERR)) { - VDBG("Error IRQ %x ", irq_src); + VDBG("Error IRQ %x", irq_src); } spin_unlock_irqrestore(&udc->lock, flags); @@ -1799,7 +1774,7 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver) /* lock is needed but whether should use this lock or another */ spin_lock_irqsave(&udc_controller->lock, flags); - driver->driver.bus = 0; + driver->driver.bus = NULL; /* hook up the driver */ udc_controller->driver = driver; udc_controller->gadget.dev.driver = &driver->driver; @@ -1809,8 +1784,8 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver) retval = driver->bind(&udc_controller->gadget); if (retval) { VDBG("bind to %s --> %d", driver->driver.name, retval); - udc_controller->gadget.dev.driver = 0; - udc_controller->driver = 0; + udc_controller->gadget.dev.driver = NULL; + udc_controller->driver = NULL; goto out; } @@ -1819,12 +1794,12 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver) udc_controller->usb_state = USB_STATE_ATTACHED; udc_controller->ep0_state = WAIT_FOR_SETUP; udc_controller->ep0_dir = 0; - printk(KERN_INFO "%s: bind to driver %s \n", + printk(KERN_INFO "%s: bind to driver %s\n", udc_controller->gadget.name, driver->driver.name); out: if (retval) - printk("retval %d \n", retval); + printk("gadget driver register failed %d\n", retval); return retval; } EXPORT_SYMBOL(usb_gadget_register_driver); @@ -1842,7 +1817,7 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) return -EINVAL; if (udc_controller->transceiver) - (void)otg_set_peripheral(udc_controller->transceiver, 0); + otg_set_peripheral(udc_controller->transceiver, NULL); /* stop DR, disable intr */ dr_controller_stop(udc_controller); @@ -1863,10 +1838,10 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) /* unbind gadget and unhook driver. */ driver->unbind(&udc_controller->gadget); - udc_controller->gadget.dev.driver = 0; - udc_controller->driver = 0; + udc_controller->gadget.dev.driver = NULL; + udc_controller->driver = NULL; - printk("unregistered gadget driver '%s'\r\n", driver->driver.name); + printk("unregistered gadget driver '%s'\n", driver->driver.name); return 0; } EXPORT_SYMBOL(usb_gadget_unregister_driver); @@ -1922,7 +1897,7 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, tmp_reg = fsl_readl(&dr_regs->usbsts); t = scnprintf(next, size, "USB Status Reg:\n" - "Dr Suspend: %d" "Reset Received: %d" "System Error: %s" + "Dr Suspend: %d Reset Received: %d System Error: %s " "USB Error Interrupt: %s\n\n", (tmp_reg & USB_STS_SUSPEND) ? 1 : 0, (tmp_reg & USB_STS_RESET) ? 1 : 0, @@ -1934,11 +1909,11 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, tmp_reg = fsl_readl(&dr_regs->usbintr); t = scnprintf(next, size, "USB Intrrupt Enable Reg:\n" - "Sleep Enable: %d" "SOF Received Enable: %d" + "Sleep Enable: %d SOF Received Enable: %d " "Reset Enable: %d\n" - "System Error Enable: %d" + "System Error Enable: %d " "Port Change Dectected Enable: %d\n" - "USB Error Intr Enable: %d" "USB Intr Enable: %d\n\n", + "USB Error Intr Enable: %d USB Intr Enable: %d\n\n", (tmp_reg & USB_INTR_DEVICE_SUSPEND) ? 1 : 0, (tmp_reg & USB_INTR_SOF_EN) ? 1 : 0, (tmp_reg & USB_INTR_RESET_EN) ? 1 : 0, @@ -1951,21 +1926,21 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, tmp_reg = fsl_readl(&dr_regs->frindex); t = scnprintf(next, size, - "USB Frame Index Reg:" "Frame Number is 0x%x\n\n", + "USB Frame Index Reg: Frame Number is 0x%x\n\n", (tmp_reg & USB_FRINDEX_MASKS)); size -= t; next += t; tmp_reg = fsl_readl(&dr_regs->deviceaddr); t = scnprintf(next, size, - "USB Device Address Reg:" "Device Addr is 0x%x\n\n", + "USB Device Address Reg: Device Addr is 0x%x\n\n", (tmp_reg & USB_DEVICE_ADDRESS_MASK)); size -= t; next += t; tmp_reg = fsl_readl(&dr_regs->endpointlistaddr); t = scnprintf(next, size, - "USB Endpoint List Address Reg:" + "USB Endpoint List Address Reg: " "Device Addr is 0x%x\n\n", (tmp_reg & USB_EP_LIST_ADDRESS_MASK)); size -= t; @@ -1974,11 +1949,12 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, tmp_reg = fsl_readl(&dr_regs->portsc1); t = scnprintf(next, size, "USB Port Status&Control Reg:\n" - "Port Transceiver Type : %s" "Port Speed: %s \n" - "PHY Low Power Suspend: %s" "Port Reset: %s" - "Port Suspend Mode: %s \n" "Over-current Change: %s" + "Port Transceiver Type : %s Port Speed: %s\n" + "PHY Low Power Suspend: %s Port Reset: %s " + "Port Suspend Mode: %s\n" + "Over-current Change: %s " "Port Enable/Disable Change: %s\n" - "Port Enabled/Disabled: %s" + "Port Enabled/Disabled: %s " "Current Connect Status: %s\n\n", ( { char *s; switch (tmp_reg & PORTSCX_PTS_FSLS) { @@ -2023,7 +1999,7 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, tmp_reg = fsl_readl(&dr_regs->usbmode); t = scnprintf(next, size, - "USB Mode Reg:" "Controller Mode is : %s\n\n", ( { + "USB Mode Reg: Controller Mode is: %s\n\n", ( { char *s; switch (tmp_reg & USB_MODE_CTRL_MODE_HOST) { case USB_MODE_CTRL_MODE_IDLE: @@ -2042,7 +2018,7 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, tmp_reg = fsl_readl(&dr_regs->endptsetupstat); t = scnprintf(next, size, - "Endpoint Setup Status Reg:" "SETUP on ep 0x%x\n\n", + "Endpoint Setup Status Reg: SETUP on ep 0x%x\n\n", (tmp_reg & EP_SETUP_STATUS_MASK)); size -= t; next += t; @@ -2055,12 +2031,12 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, next += t; } tmp_reg = fsl_readl(&dr_regs->endpointprime); - t = scnprintf(next, size, "EP Prime Reg = [0x%x]\n", tmp_reg); + t = scnprintf(next, size, "EP Prime Reg = [0x%x]\n\n", tmp_reg); size -= t; next += t; tmp_reg = usb_sys_regs->snoop1; - t = scnprintf(next, size, "\nSnoop1 Reg : = [0x%x]\n\n", tmp_reg); + t = scnprintf(next, size, "Snoop1 Reg : = [0x%x]\n\n", tmp_reg); size -= t; next += t; @@ -2084,7 +2060,7 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, } else { list_for_each_entry(req, &ep->queue, queue) { t = scnprintf(next, size, - "req %p actual 0x%x length 0x%x buf %p\n", + "req %p actual 0x%x length 0x%x buf %p\n", &req->req, req->req.actual, req->req.length, req->req.buf); size -= t; @@ -2110,7 +2086,7 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, } else { list_for_each_entry(req, &ep->queue, queue) { t = scnprintf(next, size, - "req %p actual 0x%x length" + "req %p actual 0x%x length " "0x%x buf %p\n", &req->req, req->req.actual, req->req.length, req->req.buf); @@ -2202,7 +2178,6 @@ static int __init struct_udc_setup(struct fsl_udc *udc, udc->usb_state = USB_STATE_POWERED; udc->ep0_dir = 0; udc->remote_wakeup = 0; /* default to 0 on reset */ - spin_lock_init(&udc->lock); return 0; } @@ -2254,7 +2229,7 @@ static int __init fsl_udc_probe(struct platform_device *pdev) u32 dccparams; if (strcmp(pdev->name, driver_name)) { - VDBG("Wrong device\n"); + VDBG("Wrong device"); return -ENODEV; } @@ -2264,23 +2239,26 @@ static int __init fsl_udc_probe(struct platform_device *pdev) return -ENOMEM; } + spin_lock_init(&udc_controller->lock); + udc_controller->stopped = 1; + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { - kfree(udc_controller); - return -ENXIO; + ret = -ENXIO; + goto err_kfree; } if (!request_mem_region(res->start, res->end - res->start + 1, driver_name)) { - ERR("request mem region for %s failed \n", pdev->name); - kfree(udc_controller); - return -EBUSY; + ERR("request mem region for %s failed\n", pdev->name); + ret = -EBUSY; + goto err_kfree; } dr_regs = ioremap(res->start, res->end - res->start + 1); if (!dr_regs) { ret = -ENOMEM; - goto err1; + goto err_release_mem_region; } usb_sys_regs = (struct usb_sys_interface *) @@ -2291,7 +2269,7 @@ static int __init fsl_udc_probe(struct platform_device *pdev) if (!(dccparams & DCCPARAMS_DC)) { ERR("This SOC doesn't support device role\n"); ret = -ENODEV; - goto err2; + goto err_iounmap; } /* Get max device endpoints */ /* DEN is bidirectional ep number, max_ep doubles the number */ @@ -2300,22 +2278,22 @@ static int __init fsl_udc_probe(struct platform_device *pdev) udc_controller->irq = platform_get_irq(pdev, 0); if (!udc_controller->irq) { ret = -ENODEV; - goto err2; + goto err_iounmap; } ret = request_irq(udc_controller->irq, fsl_udc_irq, IRQF_SHARED, driver_name, udc_controller); if (ret != 0) { - ERR("cannot request irq %d err %d \n", + ERR("cannot request irq %d err %d\n", udc_controller->irq, ret); - goto err2; + goto err_iounmap; } /* Initialize the udc structure including QH member and other member */ if (struct_udc_setup(udc_controller, pdev)) { ERR("Can't initialize udc data structure\n"); ret = -ENOMEM; - goto err3; + goto err_free_irq; } /* initialize usb hw reg except for regs for EP, @@ -2336,7 +2314,7 @@ static int __init fsl_udc_probe(struct platform_device *pdev) udc_controller->gadget.dev.parent = &pdev->dev; ret = device_register(&udc_controller->gadget.dev); if (ret < 0) - goto err3; + goto err_free_irq; /* setup QH and epctrl for ep0 */ ep0_setup(udc_controller); @@ -2366,20 +2344,22 @@ static int __init fsl_udc_probe(struct platform_device *pdev) DTD_ALIGNMENT, UDC_DMA_BOUNDARY); if (udc_controller->td_pool == NULL) { ret = -ENOMEM; - goto err4; + goto err_unregister; } create_proc_file(); return 0; -err4: +err_unregister: device_unregister(&udc_controller->gadget.dev); -err3: +err_free_irq: free_irq(udc_controller->irq, udc_controller); -err2: +err_iounmap: iounmap(dr_regs); -err1: +err_release_mem_region: release_mem_region(res->start, res->end - res->start + 1); +err_kfree: kfree(udc_controller); + udc_controller = NULL; return ret; } @@ -2469,7 +2449,7 @@ module_init(udc_init); static void __exit udc_exit(void) { platform_driver_unregister(&udc_driver); - printk("%s unregistered \n", driver_desc); + printk("%s unregistered\n", driver_desc); } module_exit(udc_exit); diff --git a/drivers/usb/gadget/fsl_usb2_udc.h b/drivers/usb/gadget/fsl_usb2_udc.h index 6131752a38bc..e63ef12645f5 100644 --- a/drivers/usb/gadget/fsl_usb2_udc.h +++ b/drivers/usb/gadget/fsl_usb2_udc.h @@ -424,16 +424,6 @@ struct ep_td_struct { /* Controller dma boundary */ #define UDC_DMA_BOUNDARY 0x1000 -/* -----------------------------------------------------------------------*/ -/* ##### enum data -*/ -typedef enum { - e_ULPI, - e_UTMI_8BIT, - e_UTMI_16BIT, - e_SERIAL -} e_PhyInterface; - /*-------------------------------------------------------------------------*/ /* ### driver private data @@ -469,9 +459,9 @@ struct fsl_ep { #define EP_DIR_OUT 0 struct fsl_udc { - struct usb_gadget gadget; struct usb_gadget_driver *driver; + struct completion *done; /* to make sure release() is done */ struct fsl_ep *eps; unsigned int max_ep; unsigned int irq; @@ -492,20 +482,13 @@ struct fsl_udc { size_t ep_qh_size; /* size after alignment adjustment*/ dma_addr_t ep_qh_dma; /* dma address of QH */ - u32 max_pipes; /* Device max pipes */ - u32 max_use_endpts; /* Max endpointes to be used */ - u32 bus_reset; /* Device is bus reseting */ + u32 max_pipes; /* Device max pipes */ u32 resume_state; /* USB state to resume */ u32 usb_state; /* USB current state */ - u32 usb_next_state; /* USB next state */ u32 ep0_state; /* Endpoint zero state */ u32 ep0_dir; /* Endpoint zero direction: can be USB_DIR_IN or USB_DIR_OUT */ - u32 usb_sof_count; /* SOF count */ - u32 errors; /* USB ERRORs count */ u8 device_address; /* Device USB address */ - - struct completion *done; /* to make sure release() is done */ }; /*-------------------------------------------------------------------------*/ diff --git a/drivers/usb/gadget/gadget_chips.h b/drivers/usb/gadget/gadget_chips.h index 17d9905101b7..4e3107dd2f34 100644 --- a/drivers/usb/gadget/gadget_chips.h +++ b/drivers/usb/gadget/gadget_chips.h @@ -151,6 +151,13 @@ #define gadget_is_m66592(g) 0 #endif +/* Freescale CPM/QE UDC SUPPORT */ +#ifdef CONFIG_USB_GADGET_FSL_QE +#define gadget_is_fsl_qe(g) !strcmp("fsl_qe_udc", (g)->name) +#else +#define gadget_is_fsl_qe(g) 0 +#endif + // CONFIG_USB_GADGET_SX2 // CONFIG_USB_GADGET_AU1X00 @@ -216,6 +223,8 @@ static inline int usb_gadget_controller_number(struct usb_gadget *gadget) return 0x20; else if (gadget_is_m66592(gadget)) return 0x21; + else if (gadget_is_fsl_qe(gadget)) + return 0x22; return -ENOENT; } diff --git a/drivers/usb/gadget/gmidi.c b/drivers/usb/gadget/gmidi.c index 6eee760410d6..60d3f9e9b51f 100644 --- a/drivers/usb/gadget/gmidi.c +++ b/drivers/usb/gadget/gmidi.c @@ -222,7 +222,7 @@ static struct usb_config_descriptor config_desc = { * power properties of the device. Is it selfpowered? */ .bmAttributes = USB_CONFIG_ATT_ONE, - .bMaxPower = 1, + .bMaxPower = CONFIG_USB_GADGET_VBUS_DRAW / 2, }; /* B.3.1 Standard AC Interface Descriptor */ diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c index 5cfb5ebf3881..8ae70de2c37d 100644 --- a/drivers/usb/gadget/net2280.c +++ b/drivers/usb/gadget/net2280.c @@ -178,6 +178,7 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) /* ep_reset() has already been called */ ep->stopped = 0; + ep->wedged = 0; ep->out_overflow = 0; /* set speed-dependent max packet; may kick in high bandwidth */ @@ -1218,7 +1219,7 @@ static int net2280_dequeue (struct usb_ep *_ep, struct usb_request *_req) static int net2280_fifo_status (struct usb_ep *_ep); static int -net2280_set_halt (struct usb_ep *_ep, int value) +net2280_set_halt_and_wedge(struct usb_ep *_ep, int value, int wedged) { struct net2280_ep *ep; unsigned long flags; @@ -1239,16 +1240,21 @@ net2280_set_halt (struct usb_ep *_ep, int value) else if (ep->is_in && value && net2280_fifo_status (_ep) != 0) retval = -EAGAIN; else { - VDEBUG (ep->dev, "%s %s halt\n", _ep->name, - value ? "set" : "clear"); + VDEBUG (ep->dev, "%s %s %s\n", _ep->name, + value ? "set" : "clear", + wedged ? "wedge" : "halt"); /* set/clear, then synch memory views with the device */ if (value) { if (ep->num == 0) ep->dev->protocol_stall = 1; else set_halt (ep); - } else + if (wedged) + ep->wedged = 1; + } else { clear_halt (ep); + ep->wedged = 0; + } (void) readl (&ep->regs->ep_rsp); } spin_unlock_irqrestore (&ep->dev->lock, flags); @@ -1257,6 +1263,20 @@ net2280_set_halt (struct usb_ep *_ep, int value) } static int +net2280_set_halt(struct usb_ep *_ep, int value) +{ + return net2280_set_halt_and_wedge(_ep, value, 0); +} + +static int +net2280_set_wedge(struct usb_ep *_ep) +{ + if (!_ep || _ep->name == ep0name) + return -EINVAL; + return net2280_set_halt_and_wedge(_ep, 1, 1); +} + +static int net2280_fifo_status (struct usb_ep *_ep) { struct net2280_ep *ep; @@ -1302,6 +1322,7 @@ static const struct usb_ep_ops net2280_ep_ops = { .dequeue = net2280_dequeue, .set_halt = net2280_set_halt, + .set_wedge = net2280_set_wedge, .fifo_status = net2280_fifo_status, .fifo_flush = net2280_fifo_flush, }; @@ -2410,9 +2431,14 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat) goto do_stall; if ((e = get_ep_by_addr (dev, w_index)) == 0) goto do_stall; - clear_halt (e); + if (e->wedged) { + VDEBUG(dev, "%s wedged, halt not cleared\n", + ep->ep.name); + } else { + VDEBUG(dev, "%s clear halt\n", ep->ep.name); + clear_halt(e); + } allow_status (ep); - VDEBUG (dev, "%s clear halt\n", ep->ep.name); goto next_endpoints; } break; @@ -2427,6 +2453,8 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat) goto do_stall; if ((e = get_ep_by_addr (dev, w_index)) == 0) goto do_stall; + if (e->ep.name == ep0name) + goto do_stall; set_halt (e); allow_status (ep); VDEBUG (dev, "%s set halt\n", ep->ep.name); diff --git a/drivers/usb/gadget/net2280.h b/drivers/usb/gadget/net2280.h index 81a71dbdc2c6..c36852263d93 100644 --- a/drivers/usb/gadget/net2280.h +++ b/drivers/usb/gadget/net2280.h @@ -109,6 +109,7 @@ struct net2280_ep { in_fifo_validate : 1, out_overflow : 1, stopped : 1, + wedged : 1, is_in : 1, is_iso : 1, responded : 1; diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c index bb54cca4c543..34e9e393f929 100644 --- a/drivers/usb/gadget/omap_udc.c +++ b/drivers/usb/gadget/omap_udc.c @@ -2313,6 +2313,13 @@ static int proc_otg_show(struct seq_file *s) tmp = omap_readl(OTG_REV); if (cpu_is_omap24xx()) { + /* + * REVISIT: Not clear how this works on OMAP2. trans + * is ANDed to produce bits 7 and 8, which might make + * sense for USB_TRANSCEIVER_CTRL on OMAP1, + * but with CONTROL_DEVCONF, these bits have something to + * do with the frame adjustment counter and McBSP2. + */ ctrl_name = "control_devconf"; trans = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); } else { diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c index 2b3b9e1dd2ee..5a3034fdfe47 100644 --- a/drivers/usb/gadget/printer.c +++ b/drivers/usb/gadget/printer.c @@ -252,7 +252,7 @@ static struct usb_config_descriptor config_desc = { .bConfigurationValue = DEV_CONFIG_VALUE, .iConfiguration = 0, .bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER, - .bMaxPower = 1 /* Self-Powered */ + .bMaxPower = CONFIG_USB_GADGET_VBUS_DRAW / 2, }; static struct usb_interface_descriptor intf_desc = { @@ -1278,8 +1278,7 @@ unknown: /* respond with data transfer before status phase? */ if (value >= 0) { req->length = value; - req->zero = value < wLength - && (value % gadget->ep0->maxpacket) == 0; + req->zero = value < wLength; value = usb_ep_queue(gadget->ep0, req, GFP_ATOMIC); if (value < 0) { DBG(dev, "ep_queue --> %d\n", value); @@ -1477,7 +1476,6 @@ autoconf_fail: if (gadget->is_otg) { otg_desc.bmAttributes |= USB_OTG_HNP, config_desc.bmAttributes |= USB_CONFIG_ATT_WAKEUP; - config_desc.bMaxPower = 4; } spin_lock_init(&dev->lock); diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c index 7cbc78a6853d..caa37c95802c 100644 --- a/drivers/usb/gadget/pxa27x_udc.c +++ b/drivers/usb/gadget/pxa27x_udc.c @@ -22,7 +22,6 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/types.h> -#include <linux/version.h> #include <linux/errno.h> #include <linux/platform_device.h> #include <linux/delay.h> @@ -651,7 +650,7 @@ pxa_ep_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags) struct pxa27x_request *req; req = kzalloc(sizeof *req, gfp_flags); - if (!req || !_ep) + if (!req) return NULL; INIT_LIST_HEAD(&req->queue); diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c index 29d13ebe7500..00ba06b44752 100644 --- a/drivers/usb/gadget/s3c2410_udc.c +++ b/drivers/usb/gadget/s3c2410_udc.c @@ -1651,7 +1651,7 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver) return -EBUSY; if (!driver->bind || !driver->setup - || driver->speed != USB_SPEED_FULL) { + || driver->speed < USB_SPEED_FULL) { printk(KERN_ERR "Invalid driver: bind %p setup %p speed %d\n", driver->bind, driver->setup, driver->speed); return -EINVAL; @@ -1894,11 +1894,8 @@ static int s3c2410_udc_probe(struct platform_device *pdev) udc->regs_info = debugfs_create_file("registers", S_IRUGO, s3c2410_udc_debugfs_root, udc, &s3c2410_udc_debugfs_fops); - if (IS_ERR(udc->regs_info)) { - dev_warn(dev, "debugfs file creation failed %ld\n", - PTR_ERR(udc->regs_info)); - udc->regs_info = NULL; - } + if (!udc->regs_info) + dev_warn(dev, "debugfs file creation failed\n"); } dev_dbg(dev, "probe ok\n"); diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c index 3faa7a7022df..37879af1c433 100644 --- a/drivers/usb/gadget/serial.c +++ b/drivers/usb/gadget/serial.c @@ -43,6 +43,7 @@ #include "epautoconf.c" #include "f_acm.c" +#include "f_obex.c" #include "f_serial.c" #include "u_serial.c" @@ -56,6 +57,7 @@ #define GS_VENDOR_ID 0x0525 /* NetChip */ #define GS_PRODUCT_ID 0xa4a6 /* Linux-USB Serial Gadget */ #define GS_CDC_PRODUCT_ID 0xa4a7 /* ... as CDC-ACM */ +#define GS_CDC_OBEX_PRODUCT_ID 0xa4a9 /* ... as CDC-OBEX */ /* string IDs are assigned dynamically */ @@ -125,6 +127,10 @@ static int use_acm = true; module_param(use_acm, bool, 0); MODULE_PARM_DESC(use_acm, "Use CDC ACM, default=yes"); +static int use_obex = false; +module_param(use_obex, bool, 0); +MODULE_PARM_DESC(use_obex, "Use CDC OBEX, default=no"); + static unsigned n_ports = 1; module_param(n_ports, uint, 0); MODULE_PARM_DESC(n_ports, "number of ports to create, default=1"); @@ -139,6 +145,8 @@ static int __init serial_bind_config(struct usb_configuration *c) for (i = 0; i < n_ports && status == 0; i++) { if (use_acm) status = acm_bind_config(c, i); + else if (use_obex) + status = obex_bind_config(c, i); else status = gser_bind_config(c, i); } @@ -151,7 +159,6 @@ static struct usb_configuration serial_config_driver = { /* .bConfigurationValue = f(use_acm) */ /* .iConfiguration = DYNAMIC */ .bmAttributes = USB_CONFIG_ATT_SELFPOWER, - .bMaxPower = 1, /* 2 mA, minimal */ }; static int __init gs_bind(struct usb_composite_dev *cdev) @@ -249,6 +256,12 @@ static int __init init(void) device_desc.bDeviceClass = USB_CLASS_COMM; device_desc.idProduct = __constant_cpu_to_le16(GS_CDC_PRODUCT_ID); + } else if (use_obex) { + serial_config_driver.label = "CDC OBEX config"; + serial_config_driver.bConfigurationValue = 3; + device_desc.bDeviceClass = USB_CLASS_COMM; + device_desc.idProduct = + __constant_cpu_to_le16(GS_CDC_OBEX_PRODUCT_ID); } else { serial_config_driver.label = "Generic Serial config"; serial_config_driver.bConfigurationValue = 1; diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c index dbd575a194f3..66948b72bb9b 100644 --- a/drivers/usb/gadget/u_ether.c +++ b/drivers/usb/gadget/u_ether.c @@ -873,6 +873,13 @@ struct net_device *gether_connect(struct gether *link) spin_lock(&dev->lock); dev->port_usb = link; link->ioport = dev; + if (netif_running(dev->net)) { + if (link->open) + link->open(link); + } else { + if (link->close) + link->close(link); + } spin_unlock(&dev->lock); netif_carrier_on(dev->net); diff --git a/drivers/usb/gadget/u_serial.h b/drivers/usb/gadget/u_serial.h index af3910d01aea..300f0ed9475d 100644 --- a/drivers/usb/gadget/u_serial.h +++ b/drivers/usb/gadget/u_serial.h @@ -62,5 +62,6 @@ void gserial_disconnect(struct gserial *); /* functions are bound to configurations by a config or gadget driver */ int acm_bind_config(struct usb_configuration *c, u8 port_num); int gser_bind_config(struct usb_configuration *c, u8 port_num); +int obex_bind_config(struct usb_configuration *c, u8 port_num); #endif /* __U_SERIAL_H */ diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 228797e54f9c..56f592dc0b36 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -138,7 +138,6 @@ config USB_OHCI_HCD tristate "OHCI HCD support" depends on USB && USB_ARCH_HAS_OHCI select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 - select I2C if ARCH_PNX4008 ---help--- The Open Host Controller Interface (OHCI) is a standard for accessing USB 1.1 host controller hardware. It does more in hardware than Intel's @@ -305,3 +304,31 @@ config SUPERH_ON_CHIP_R8A66597 help This driver enables support for the on-chip R8A66597 in the SH7366 and SH7723 processors. + +config USB_WHCI_HCD + tristate "Wireless USB Host Controller Interface (WHCI) driver (EXPERIMENTAL)" + depends on EXPERIMENTAL + depends on PCI && USB + select USB_WUSB + select UWB_WHCI + help + A driver for PCI-based Wireless USB Host Controllers that are + compliant with the WHCI specification. + + To compile this driver a module, choose M here: the module + will be called "whci-hcd". + +config USB_HWA_HCD + tristate "Host Wire Adapter (HWA) driver (EXPERIMENTAL)" + depends on EXPERIMENTAL + depends on USB + select USB_WUSB + select UWB_HWA + help + This driver enables you to connect Wireless USB devices to + your system using a Host Wire Adaptor USB dongle. This is an + UWB Radio Controller and WUSB Host Controller connected to + your machine via USB (specified in WUSB1.0). + + To compile this driver a module, choose M here: the module + will be called "hwa-hc". diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index f1edda2dcfde..23be22224044 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -8,6 +8,8 @@ endif isp1760-objs := isp1760-hcd.o isp1760-if.o +obj-$(CONFIG_USB_WHCI_HCD) += whci/ + obj-$(CONFIG_PCI) += pci-quirks.o obj-$(CONFIG_USB_EHCI_HCD) += ehci-hcd.o @@ -19,3 +21,4 @@ obj-$(CONFIG_USB_SL811_CS) += sl811_cs.o obj-$(CONFIG_USB_U132_HCD) += u132-hcd.o obj-$(CONFIG_USB_R8A66597_HCD) += r8a66597-hcd.o obj-$(CONFIG_USB_ISP1760_HCD) += isp1760.o +obj-$(CONFIG_USB_HWA_HCD) += hwa-hc.o diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c index b0f8ed5a7fb9..0cb53ca8d343 100644 --- a/drivers/usb/host/ehci-dbg.c +++ b/drivers/usb/host/ehci-dbg.c @@ -358,7 +358,8 @@ struct debug_buffer { struct usb_bus *bus; struct mutex mutex; /* protect filling of buffer */ size_t count; /* number of characters filled into buffer */ - char *page; + char *output_buf; + size_t alloc_size; }; #define speed_char(info1) ({ char tmp; \ @@ -488,8 +489,8 @@ static ssize_t fill_async_buffer(struct debug_buffer *buf) hcd = bus_to_hcd(buf->bus); ehci = hcd_to_ehci (hcd); - next = buf->page; - size = PAGE_SIZE; + next = buf->output_buf; + size = buf->alloc_size; *next = 0; @@ -510,7 +511,7 @@ static ssize_t fill_async_buffer(struct debug_buffer *buf) } spin_unlock_irqrestore (&ehci->lock, flags); - return strlen(buf->page); + return strlen(buf->output_buf); } #define DBG_SCHED_LIMIT 64 @@ -531,8 +532,8 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) hcd = bus_to_hcd(buf->bus); ehci = hcd_to_ehci (hcd); - next = buf->page; - size = PAGE_SIZE; + next = buf->output_buf; + size = buf->alloc_size; temp = scnprintf (next, size, "size = %d\n", ehci->periodic_size); size -= temp; @@ -568,14 +569,16 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) for (temp = 0; temp < seen_count; temp++) { if (seen [temp].ptr != p.ptr) continue; - if (p.qh->qh_next.ptr) + if (p.qh->qh_next.ptr) { temp = scnprintf (next, size, " ..."); - p.ptr = NULL; + size -= temp; + next += temp; + } break; } /* show more info the first time around */ - if (temp == seen_count && p.ptr) { + if (temp == seen_count) { u32 scratch = hc32_to_cpup(ehci, &p.qh->hw_info1); struct ehci_qtd *qtd; @@ -649,7 +652,7 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) spin_unlock_irqrestore (&ehci->lock, flags); kfree (seen); - return PAGE_SIZE - size; + return buf->alloc_size - size; } #undef DBG_SCHED_LIMIT @@ -665,14 +668,14 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf) hcd = bus_to_hcd(buf->bus); ehci = hcd_to_ehci (hcd); - next = buf->page; - size = PAGE_SIZE; + next = buf->output_buf; + size = buf->alloc_size; spin_lock_irqsave (&ehci->lock, flags); if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)) { size = scnprintf (next, size, - "bus %s, device %s (driver " DRIVER_VERSION ")\n" + "bus %s, device %s\n" "%s\n" "SUSPENDED (no register access)\n", hcd->self.controller->bus->name, @@ -684,7 +687,7 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf) /* Capability Registers */ i = HC_VERSION(ehci_readl(ehci, &ehci->caps->hc_capbase)); temp = scnprintf (next, size, - "bus %s, device %s (driver " DRIVER_VERSION ")\n" + "bus %s, device %s\n" "%s\n" "EHCI %x.%02x, hcd state %d\n", hcd->self.controller->bus->name, @@ -808,7 +811,7 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf) done: spin_unlock_irqrestore (&ehci->lock, flags); - return PAGE_SIZE - size; + return buf->alloc_size - size; } static struct debug_buffer *alloc_buffer(struct usb_bus *bus, @@ -822,6 +825,7 @@ static struct debug_buffer *alloc_buffer(struct usb_bus *bus, buf->bus = bus; buf->fill_func = fill_func; mutex_init(&buf->mutex); + buf->alloc_size = PAGE_SIZE; } return buf; @@ -831,10 +835,10 @@ static int fill_buffer(struct debug_buffer *buf) { int ret = 0; - if (!buf->page) - buf->page = (char *)get_zeroed_page(GFP_KERNEL); + if (!buf->output_buf) + buf->output_buf = (char *)vmalloc(buf->alloc_size); - if (!buf->page) { + if (!buf->output_buf) { ret = -ENOMEM; goto out; } @@ -867,7 +871,7 @@ static ssize_t debug_output(struct file *file, char __user *user_buf, mutex_unlock(&buf->mutex); ret = simple_read_from_buffer(user_buf, len, offset, - buf->page, buf->count); + buf->output_buf, buf->count); out: return ret; @@ -879,8 +883,8 @@ static int debug_close(struct inode *inode, struct file *file) struct debug_buffer *buf = file->private_data; if (buf) { - if (buf->page) - free_page((unsigned long)buf->page); + if (buf->output_buf) + vfree(buf->output_buf); kfree(buf); } @@ -895,10 +899,14 @@ static int debug_async_open(struct inode *inode, struct file *file) static int debug_periodic_open(struct inode *inode, struct file *file) { - file->private_data = alloc_buffer(inode->i_private, - fill_periodic_buffer); + struct debug_buffer *buf; + buf = alloc_buffer(inode->i_private, fill_periodic_buffer); + if (!buf) + return -ENOMEM; - return file->private_data ? 0 : -ENOMEM; + buf->alloc_size = (sizeof(void *) == 4 ? 6 : 8)*PAGE_SIZE; + file->private_data = buf; + return 0; } static int debug_registers_open(struct inode *inode, struct file *file) diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 8409e0705d63..15a803b206b8 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -24,6 +24,7 @@ #include <linux/ioport.h> #include <linux/sched.h> #include <linux/slab.h> +#include <linux/vmalloc.h> #include <linux/errno.h> #include <linux/init.h> #include <linux/timer.h> @@ -59,7 +60,6 @@ * providing early devices for those host controllers to talk to! */ -#define DRIVER_VERSION "10 Dec 2004" #define DRIVER_AUTHOR "David Brownell" #define DRIVER_DESC "USB 2.0 'Enhanced' Host Controller (EHCI) Driver" @@ -620,9 +620,9 @@ static int ehci_run (struct usb_hcd *hcd) temp = HC_VERSION(ehci_readl(ehci, &ehci->caps->hc_capbase)); ehci_info (ehci, - "USB %x.%x started, EHCI %x.%02x, driver %s%s\n", + "USB %x.%x started, EHCI %x.%02x%s\n", ((ehci->sbrn & 0xf0)>>4), (ehci->sbrn & 0x0f), - temp >> 8, temp & 0xff, DRIVER_VERSION, + temp >> 8, temp & 0xff, ignore_oc ? ", overcurrent ignored" : ""); ehci_writel(ehci, INTR_MASK, @@ -706,7 +706,7 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) pcd_status = status; /* resume root hub? */ - if (!(ehci_readl(ehci, &ehci->regs->command) & CMD_RUN)) + if (!(cmd & CMD_RUN)) usb_hcd_resume_root_hub(hcd); while (i--) { @@ -715,8 +715,11 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) if (pstatus & PORT_OWNER) continue; - if (!(pstatus & PORT_RESUME) - || ehci->reset_done [i] != 0) + if (!(test_bit(i, &ehci->suspended_ports) && + ((pstatus & PORT_RESUME) || + !(pstatus & PORT_SUSPEND)) && + (pstatus & PORT_PE) && + ehci->reset_done[i] == 0)) continue; /* start 20 msec resume signaling from this port, @@ -731,9 +734,8 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) /* PCI errors [4.15.2.4] */ if (unlikely ((status & STS_FATAL) != 0)) { - dbg_cmd (ehci, "fatal", ehci_readl(ehci, - &ehci->regs->command)); - dbg_status (ehci, "fatal", status); + dbg_cmd(ehci, "fatal", cmd); + dbg_status(ehci, "fatal", status); if (status & STS_HALT) { ehci_err (ehci, "fatal error\n"); dead: @@ -994,9 +996,7 @@ static int ehci_get_frame (struct usb_hcd *hcd) /*-------------------------------------------------------------------------*/ -#define DRIVER_INFO DRIVER_VERSION " " DRIVER_DESC - -MODULE_DESCRIPTION (DRIVER_INFO); +MODULE_DESCRIPTION(DRIVER_DESC); MODULE_AUTHOR (DRIVER_AUTHOR); MODULE_LICENSE ("GPL"); @@ -1020,11 +1020,6 @@ MODULE_LICENSE ("GPL"); #define PS3_SYSTEM_BUS_DRIVER ps3_ehci_driver #endif -#if defined(CONFIG_440EPX) && !defined(CONFIG_PPC_MERGE) -#include "ehci-ppc-soc.c" -#define PLATFORM_DRIVER ehci_ppc_soc_driver -#endif - #ifdef CONFIG_USB_EHCI_HCD_PPC_OF #include "ehci-ppc-of.c" #define OF_PLATFORM_DRIVER ehci_hcd_ppc_of_driver @@ -1049,6 +1044,16 @@ static int __init ehci_hcd_init(void) { int retval = 0; + if (usb_disabled()) + return -ENODEV; + + printk(KERN_INFO "%s: " DRIVER_DESC "\n", hcd_name); + set_bit(USB_EHCI_LOADED, &usb_hcds_loaded); + if (test_bit(USB_UHCI_LOADED, &usb_hcds_loaded) || + test_bit(USB_OHCI_LOADED, &usb_hcds_loaded)) + printk(KERN_WARNING "Warning! ehci_hcd should always be loaded" + " before uhci_hcd and ohci_hcd, not after\n"); + pr_debug("%s: block sizes: qh %Zd qtd %Zd itd %Zd sitd %Zd\n", hcd_name, sizeof(struct ehci_qh), sizeof(struct ehci_qtd), @@ -1056,8 +1061,10 @@ static int __init ehci_hcd_init(void) #ifdef DEBUG ehci_debug_root = debugfs_create_dir("ehci", NULL); - if (!ehci_debug_root) - return -ENOENT; + if (!ehci_debug_root) { + retval = -ENOENT; + goto err_debug; + } #endif #ifdef PLATFORM_DRIVER @@ -1104,7 +1111,9 @@ clean0: #ifdef DEBUG debugfs_remove(ehci_debug_root); ehci_debug_root = NULL; +err_debug: #endif + clear_bit(USB_EHCI_LOADED, &usb_hcds_loaded); return retval; } module_init(ehci_hcd_init); @@ -1126,6 +1135,7 @@ static void __exit ehci_hcd_cleanup(void) #ifdef DEBUG debugfs_remove(ehci_debug_root); #endif + clear_bit(USB_EHCI_LOADED, &usb_hcds_loaded); } module_exit(ehci_hcd_cleanup); diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index 740835bb8575..218f9660d7ee 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -236,10 +236,8 @@ static int ehci_bus_resume (struct usb_hcd *hcd) temp = ehci_readl(ehci, &ehci->regs->port_status [i]); temp &= ~(PORT_RWC_BITS | PORT_WAKE_BITS); if (test_bit(i, &ehci->bus_suspended) && - (temp & PORT_SUSPEND)) { - ehci->reset_done [i] = jiffies + msecs_to_jiffies (20); + (temp & PORT_SUSPEND)) temp |= PORT_RESUME; - } ehci_writel(ehci, temp, &ehci->regs->port_status [i]); } i = HCS_N_PORTS (ehci->hcs_params); @@ -482,10 +480,9 @@ ehci_hub_status_data (struct usb_hcd *hcd, char *buf) * controller by the user. */ - if ((temp & mask) != 0 - || ((temp & PORT_RESUME) != 0 - && time_after_eq(jiffies, - ehci->reset_done[i]))) { + if ((temp & mask) != 0 || test_bit(i, &ehci->port_c_suspend) + || (ehci->reset_done[i] && time_after_eq( + jiffies, ehci->reset_done[i]))) { if (i < 7) buf [0] |= 1 << (i + 1); else @@ -688,6 +685,7 @@ static int ehci_hub_control ( /* resume completed? */ else if (time_after_eq(jiffies, ehci->reset_done[wIndex])) { + clear_bit(wIndex, &ehci->suspended_ports); set_bit(wIndex, &ehci->port_c_suspend); ehci->reset_done[wIndex] = 0; @@ -734,6 +732,9 @@ static int ehci_hub_control ( ehci_readl(ehci, status_reg)); } + if (!(temp & (PORT_RESUME|PORT_RESET))) + ehci->reset_done[wIndex] = 0; + /* transfer dedicated ports to the companion hc */ if ((temp & PORT_CONNECT) && test_bit(wIndex, &ehci->companion_ports)) { @@ -757,8 +758,17 @@ static int ehci_hub_control ( } if (temp & PORT_PE) status |= 1 << USB_PORT_FEAT_ENABLE; - if (temp & (PORT_SUSPEND|PORT_RESUME)) + + /* maybe the port was unsuspended without our knowledge */ + if (temp & (PORT_SUSPEND|PORT_RESUME)) { status |= 1 << USB_PORT_FEAT_SUSPEND; + } else if (test_bit(wIndex, &ehci->suspended_ports)) { + clear_bit(wIndex, &ehci->suspended_ports); + ehci->reset_done[wIndex] = 0; + if (temp & PORT_PE) + set_bit(wIndex, &ehci->port_c_suspend); + } + if (temp & PORT_OC) status |= 1 << USB_PORT_FEAT_OVER_CURRENT; if (temp & PORT_RESET) @@ -803,6 +813,7 @@ static int ehci_hub_control ( || (temp & PORT_RESET) != 0) goto error; ehci_writel(ehci, temp | PORT_SUSPEND, status_reg); + set_bit(wIndex, &ehci->suspended_ports); break; case USB_PORT_FEAT_POWER: if (HCS_PPC (ehci->hcs_params)) diff --git a/drivers/usb/host/ehci-ppc-soc.c b/drivers/usb/host/ehci-ppc-soc.c deleted file mode 100644 index 529590eb4037..000000000000 --- a/drivers/usb/host/ehci-ppc-soc.c +++ /dev/null @@ -1,201 +0,0 @@ -/* - * EHCI HCD (Host Controller Driver) for USB. - * - * (C) Copyright 2006-2007 Stefan Roese <sr@denx.de>, DENX Software Engineering - * - * Bus Glue for PPC On-Chip EHCI driver - * Tested on AMCC 440EPx - * - * Based on "ehci-au1xxx.c" by K.Boge <karsten.boge@amd.com> - * - * This file is licenced under the GPL. - */ - -#include <linux/platform_device.h> - -extern int usb_disabled(void); - -/* called during probe() after chip reset completes */ -static int ehci_ppc_soc_setup(struct usb_hcd *hcd) -{ - struct ehci_hcd *ehci = hcd_to_ehci(hcd); - int retval; - - retval = ehci_halt(ehci); - if (retval) - return retval; - - retval = ehci_init(hcd); - if (retval) - return retval; - - ehci->sbrn = 0x20; - return ehci_reset(ehci); -} - -/** - * usb_ehci_ppc_soc_probe - initialize PPC-SoC-based HCDs - * Context: !in_interrupt() - * - * Allocates basic resources for this USB host controller, and - * then invokes the start() method for the HCD associated with it - * through the hotplug entry's driver_data. - * - */ -int usb_ehci_ppc_soc_probe(const struct hc_driver *driver, - struct usb_hcd **hcd_out, - struct platform_device *dev) -{ - int retval; - struct usb_hcd *hcd; - struct ehci_hcd *ehci; - - if (dev->resource[1].flags != IORESOURCE_IRQ) { - pr_debug("resource[1] is not IORESOURCE_IRQ"); - retval = -ENOMEM; - } - hcd = usb_create_hcd(driver, &dev->dev, "PPC-SOC EHCI"); - if (!hcd) - return -ENOMEM; - hcd->rsrc_start = dev->resource[0].start; - hcd->rsrc_len = dev->resource[0].end - dev->resource[0].start + 1; - - if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { - pr_debug("request_mem_region failed"); - retval = -EBUSY; - goto err1; - } - - hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); - if (!hcd->regs) { - pr_debug("ioremap failed"); - retval = -ENOMEM; - goto err2; - } - - ehci = hcd_to_ehci(hcd); - ehci->big_endian_mmio = 1; - ehci->big_endian_desc = 1; - ehci->caps = hcd->regs; - ehci->regs = hcd->regs + HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase)); - - /* cache this readonly data; minimize chip reads */ - ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); - -#if defined(CONFIG_440EPX) - /* - * 440EPx Errata USBH_3 - * Fix: Enable Break Memory Transfer (BMT) in INSNREG3 - */ - out_be32((void *)((ulong)(&ehci->regs->command) + 0x8c), (1 << 0)); - ehci_dbg(ehci, "Break Memory Transfer (BMT) has beed enabled!\n"); -#endif - - retval = usb_add_hcd(hcd, dev->resource[1].start, IRQF_DISABLED); - if (retval == 0) - return retval; - - iounmap(hcd->regs); -err2: - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); -err1: - usb_put_hcd(hcd); - return retval; -} - -/* may be called without controller electrically present */ -/* may be called with controller, bus, and devices active */ - -/** - * usb_ehci_hcd_ppc_soc_remove - shutdown processing for PPC-SoC-based HCDs - * @dev: USB Host Controller being removed - * Context: !in_interrupt() - * - * Reverses the effect of usb_ehci_hcd_ppc_soc_probe(), first invoking - * the HCD's stop() method. It is always called from a thread - * context, normally "rmmod", "apmd", or something similar. - * - */ -void usb_ehci_ppc_soc_remove(struct usb_hcd *hcd, struct platform_device *dev) -{ - usb_remove_hcd(hcd); - iounmap(hcd->regs); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); - usb_put_hcd(hcd); -} - -static const struct hc_driver ehci_ppc_soc_hc_driver = { - .description = hcd_name, - .product_desc = "PPC-SOC EHCI", - .hcd_priv_size = sizeof(struct ehci_hcd), - - /* - * generic hardware linkage - */ - .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, - - /* - * basic lifecycle operations - */ - .reset = ehci_ppc_soc_setup, - .start = ehci_run, - .stop = ehci_stop, - .shutdown = ehci_shutdown, - - /* - * managing i/o requests and associated device resources - */ - .urb_enqueue = ehci_urb_enqueue, - .urb_dequeue = ehci_urb_dequeue, - .endpoint_disable = ehci_endpoint_disable, - - /* - * scheduling support - */ - .get_frame_number = ehci_get_frame, - - /* - * root hub support - */ - .hub_status_data = ehci_hub_status_data, - .hub_control = ehci_hub_control, - .bus_suspend = ehci_bus_suspend, - .bus_resume = ehci_bus_resume, - .relinquish_port = ehci_relinquish_port, - .port_handed_over = ehci_port_handed_over, -}; - -static int ehci_hcd_ppc_soc_drv_probe(struct platform_device *pdev) -{ - struct usb_hcd *hcd = NULL; - int ret; - - pr_debug("In ehci_hcd_ppc_soc_drv_probe\n"); - - if (usb_disabled()) - return -ENODEV; - - /* FIXME we only want one one probe() not two */ - ret = usb_ehci_ppc_soc_probe(&ehci_ppc_soc_hc_driver, &hcd, pdev); - return ret; -} - -static int ehci_hcd_ppc_soc_drv_remove(struct platform_device *pdev) -{ - struct usb_hcd *hcd = platform_get_drvdata(pdev); - - /* FIXME we only want one one remove() not two */ - usb_ehci_ppc_soc_remove(hcd, pdev); - return 0; -} - -MODULE_ALIAS("platform:ppc-soc-ehci"); -static struct platform_driver ehci_ppc_soc_driver = { - .probe = ehci_hcd_ppc_soc_drv_probe, - .remove = ehci_hcd_ppc_soc_drv_remove, - .shutdown = usb_hcd_platform_shutdown, - .driver = { - .name = "ppc-soc-ehci", - } -}; diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index b697a13364ec..b11798d17ae5 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -99,6 +99,8 @@ struct ehci_hcd { /* one per controller */ owned by the companion during a bus suspend */ unsigned long port_c_suspend; /* which ports have the change-suspend feature turned on */ + unsigned long suspended_ports; /* which ports are + suspended */ /* per-HC memory pools (could be per-bus, but ...) */ struct dma_pool *qh_pool; /* qh per active urb */ @@ -181,14 +183,16 @@ timer_action (struct ehci_hcd *ehci, enum ehci_timer_action action) * the async ring; just the I/O watchdog. Note that if a * SHRINK were pending, OFF would never be requested. */ - if (timer_pending(&ehci->watchdog) - && ((BIT(TIMER_ASYNC_SHRINK) | BIT(TIMER_ASYNC_OFF)) - & ehci->actions)) - return; + enum ehci_timer_action oldactions = ehci->actions; if (!test_and_set_bit (action, &ehci->actions)) { unsigned long t; + if (timer_pending(&ehci->watchdog) + && ((BIT(TIMER_ASYNC_SHRINK) | BIT(TIMER_ASYNC_OFF)) + & oldactions)) + return; + switch (action) { case TIMER_IO_WATCHDOG: t = EHCI_IO_JIFFIES; @@ -204,7 +208,7 @@ timer_action (struct ehci_hcd *ehci, enum ehci_timer_action action) t = DIV_ROUND_UP(EHCI_SHRINK_FRAMES * HZ, 1000) + 1; break; } - mod_timer(&ehci->watchdog, t + jiffies); + mod_timer(&ehci->watchdog, round_jiffies(t + jiffies)); } } @@ -604,16 +608,7 @@ ehci_port_speed(struct ehci_hcd *ehci, unsigned int portsc) /* * Big-endian read/write functions are arch-specific. * Other arches can be added if/when they're needed. - * - * REVISIT: arch/powerpc now has readl/writel_be, so the - * definition below can die once the 4xx support is - * finally ported over. */ -#if defined(CONFIG_PPC) && !defined(CONFIG_PPC_MERGE) -#define readl_be(addr) in_be32((__force unsigned *)addr) -#define writel_be(val, addr) out_be32((__force unsigned *)addr, val) -#endif - #if defined(CONFIG_ARM) && defined(CONFIG_ARCH_IXP4XX) #define readl_be(addr) __raw_readl((__force unsigned *)addr) #define writel_be(val, addr) __raw_writel(val, (__force unsigned *)addr) diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c new file mode 100644 index 000000000000..64be4d88df11 --- /dev/null +++ b/drivers/usb/host/hwa-hc.c @@ -0,0 +1,925 @@ +/* + * Host Wire Adapter: + * Driver glue, HWA-specific functions, bridges to WAHC and WUSBHC + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * The HWA driver is a simple layer that forwards requests to the WAHC + * (Wire Adater Host Controller) or WUSBHC (Wireless USB Host + * Controller) layers. + * + * Host Wire Adapter is the 'WUSB 1.0 standard' name for Wireless-USB + * Host Controller that is connected to your system via USB (a USB + * dongle that implements a USB host...). There is also a Device Wired + * Adaptor, DWA (Wireless USB hub) that uses the same mechanism for + * transferring data (it is after all a USB host connected via + * Wireless USB), we have a common layer called Wire Adapter Host + * Controller that does all the hard work. The WUSBHC (Wireless USB + * Host Controller) is the part common to WUSB Host Controllers, the + * HWA and the PCI-based one, that is implemented following the WHCI + * spec. All these layers are implemented in ../wusbcore. + * + * The main functions are hwahc_op_urb_{en,de}queue(), that pass the + * job of converting a URB to a Wire Adapter + * + * Entry points: + * + * hwahc_driver_*() Driver initialization, registration and + * teardown. + * + * hwahc_probe() New device came up, create an instance for + * it [from device enumeration]. + * + * hwahc_disconnect() Remove device instance [from device + * enumeration]. + * + * [__]hwahc_op_*() Host-Wire-Adaptor specific functions for + * starting/stopping/etc (some might be made also + * DWA). + */ +#include <linux/kernel.h> +#include <linux/version.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/workqueue.h> +#include <linux/wait.h> +#include <linux/completion.h> +#include "../wusbcore/wa-hc.h" +#include "../wusbcore/wusbhc.h" + +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + +struct hwahc { + struct wusbhc wusbhc; /* has to be 1st */ + struct wahc wa; + u8 buffer[16]; /* for misc usb transactions */ +}; + +/** + * FIXME should be wusbhc + * + * NOTE: we need to cache the Cluster ID because later...there is no + * way to get it :) + */ +static int __hwahc_set_cluster_id(struct hwahc *hwahc, u8 cluster_id) +{ + int result; + struct wusbhc *wusbhc = &hwahc->wusbhc; + struct wahc *wa = &hwahc->wa; + struct device *dev = &wa->usb_iface->dev; + + result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + WUSB_REQ_SET_CLUSTER_ID, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + cluster_id, + wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, + NULL, 0, 1000 /* FIXME: arbitrary */); + if (result < 0) + dev_err(dev, "Cannot set WUSB Cluster ID to 0x%02x: %d\n", + cluster_id, result); + else + wusbhc->cluster_id = cluster_id; + dev_info(dev, "Wireless USB Cluster ID set to 0x%02x\n", cluster_id); + return result; +} + +static int __hwahc_op_set_num_dnts(struct wusbhc *wusbhc, u8 interval, u8 slots) +{ + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + + return usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + WUSB_REQ_SET_NUM_DNTS, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + interval << 8 | slots, + wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, + NULL, 0, 1000 /* FIXME: arbitrary */); +} + +/* + * Reset a WUSB host controller and wait for it to complete doing it. + * + * @usb_hcd: Pointer to WUSB Host Controller instance. + * + */ +static int hwahc_op_reset(struct usb_hcd *usb_hcd) +{ + int result; + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct device *dev = &hwahc->wa.usb_iface->dev; + + d_fnstart(4, dev, "(hwahc %p)\n", hwahc); + mutex_lock(&wusbhc->mutex); + wa_nep_disarm(&hwahc->wa); + result = __wa_set_feature(&hwahc->wa, WA_RESET); + if (result < 0) { + dev_err(dev, "error commanding HC to reset: %d\n", result); + goto error_unlock; + } + d_printf(3, dev, "reset: waiting for device to change state\n"); + result = __wa_wait_status(&hwahc->wa, WA_STATUS_RESETTING, 0); + if (result < 0) { + dev_err(dev, "error waiting for HC to reset: %d\n", result); + goto error_unlock; + } +error_unlock: + mutex_unlock(&wusbhc->mutex); + d_fnend(4, dev, "(hwahc %p) = %d\n", hwahc, result); + return result; +} + +/* + * FIXME: break this function up + */ +static int hwahc_op_start(struct usb_hcd *usb_hcd) +{ + u8 addr; + int result; + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct device *dev = &hwahc->wa.usb_iface->dev; + + /* Set up a Host Info WUSB Information Element */ + d_fnstart(4, dev, "(hwahc %p)\n", hwahc); + result = -ENOSPC; + mutex_lock(&wusbhc->mutex); + /* Start the numbering from the top so that the bottom + * range of the unauth addr space is used for devices, + * the top for HCs; use 0xfe - RC# */ + addr = wusb_cluster_id_get(); + if (addr == 0) + goto error_cluster_id_get; + result = __hwahc_set_cluster_id(hwahc, addr); + if (result < 0) + goto error_set_cluster_id; + + result = wa_nep_arm(&hwahc->wa, GFP_KERNEL); + if (result < 0) { + dev_err(dev, "cannot listen to notifications: %d\n", result); + goto error_stop; + } + usb_hcd->uses_new_polling = 1; + usb_hcd->poll_rh = 1; + usb_hcd->state = HC_STATE_RUNNING; + result = 0; +out: + mutex_unlock(&wusbhc->mutex); + d_fnend(4, dev, "(hwahc %p) = %d\n", hwahc, result); + return result; + +error_stop: + __wa_stop(&hwahc->wa); +error_set_cluster_id: + wusb_cluster_id_put(wusbhc->cluster_id); +error_cluster_id_get: + goto out; + +} + +/* + * FIXME: break this function up + */ +static int __hwahc_op_wusbhc_start(struct wusbhc *wusbhc) +{ + int result; + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct device *dev = &hwahc->wa.usb_iface->dev; + + /* Set up a Host Info WUSB Information Element */ + d_fnstart(4, dev, "(hwahc %p)\n", hwahc); + result = -ENOSPC; + + result = __wa_set_feature(&hwahc->wa, WA_ENABLE); + if (result < 0) { + dev_err(dev, "error commanding HC to start: %d\n", result); + goto error_stop; + } + result = __wa_wait_status(&hwahc->wa, WA_ENABLE, WA_ENABLE); + if (result < 0) { + dev_err(dev, "error waiting for HC to start: %d\n", result); + goto error_stop; + } + result = 0; +out: + d_fnend(4, dev, "(hwahc %p) = %d\n", hwahc, result); + return result; + +error_stop: + result = __wa_clear_feature(&hwahc->wa, WA_ENABLE); + goto out; +} + +static int hwahc_op_suspend(struct usb_hcd *usb_hcd, pm_message_t msg) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + dev_err(wusbhc->dev, "%s (%p [%p], 0x%lx) UNIMPLEMENTED\n", __func__, + usb_hcd, hwahc, *(unsigned long *) &msg); + return -ENOSYS; +} + +static int hwahc_op_resume(struct usb_hcd *usb_hcd) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + + dev_err(wusbhc->dev, "%s (%p [%p]) UNIMPLEMENTED\n", __func__, + usb_hcd, hwahc); + return -ENOSYS; +} + +static void __hwahc_op_wusbhc_stop(struct wusbhc *wusbhc) +{ + int result; + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct device *dev = &hwahc->wa.usb_iface->dev; + + d_fnstart(4, dev, "(hwahc %p)\n", hwahc); + /* Nothing for now */ + d_fnend(4, dev, "(hwahc %p) = %d\n", hwahc, result); + return; +} + +/* + * No need to abort pipes, as when this is called, all the children + * has been disconnected and that has done it [through + * usb_disable_interface() -> usb_disable_endpoint() -> + * hwahc_op_ep_disable() - >rpipe_ep_disable()]. + */ +static void hwahc_op_stop(struct usb_hcd *usb_hcd) +{ + int result; + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + struct device *dev = &wa->usb_iface->dev; + + d_fnstart(4, dev, "(hwahc %p)\n", hwahc); + mutex_lock(&wusbhc->mutex); + wusbhc_stop(wusbhc); + wa_nep_disarm(&hwahc->wa); + result = __wa_stop(&hwahc->wa); + wusb_cluster_id_put(wusbhc->cluster_id); + mutex_unlock(&wusbhc->mutex); + d_fnend(4, dev, "(hwahc %p) = %d\n", hwahc, result); + return; +} + +static int hwahc_op_get_frame_number(struct usb_hcd *usb_hcd) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + + dev_err(wusbhc->dev, "%s (%p [%p]) UNIMPLEMENTED\n", __func__, + usb_hcd, hwahc); + return -ENOSYS; +} + +static int hwahc_op_urb_enqueue(struct usb_hcd *usb_hcd, struct urb *urb, + gfp_t gfp) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + + return wa_urb_enqueue(&hwahc->wa, urb->ep, urb, gfp); +} + +static int hwahc_op_urb_dequeue(struct usb_hcd *usb_hcd, struct urb *urb, + int status) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + + return wa_urb_dequeue(&hwahc->wa, urb); +} + +/* + * Release resources allocated for an endpoint + * + * If there is an associated rpipe to this endpoint, go ahead and put it. + */ +static void hwahc_op_endpoint_disable(struct usb_hcd *usb_hcd, + struct usb_host_endpoint *ep) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + + rpipe_ep_disable(&hwahc->wa, ep); +} + +/* + * Set the UWB MAS allocation for the WUSB cluster + * + * @stream_index: stream to use (-1 for cancelling the allocation) + * @mas: mas bitmap to use + */ +static int __hwahc_op_bwa_set(struct wusbhc *wusbhc, s8 stream_index, + const struct uwb_mas_bm *mas) +{ + int result; + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + struct device *dev = &wa->usb_iface->dev; + u8 mas_le[UWB_NUM_MAS/8]; + + /* Set the stream index */ + result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + WUSB_REQ_SET_STREAM_IDX, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + stream_index, + wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, + NULL, 0, 1000 /* FIXME: arbitrary */); + if (result < 0) { + dev_err(dev, "Cannot set WUSB stream index: %d\n", result); + goto out; + } + uwb_mas_bm_copy_le(mas_le, mas); + /* Set the MAS allocation */ + result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + WUSB_REQ_SET_WUSB_MAS, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0, wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, + mas_le, 32, 1000 /* FIXME: arbitrary */); + if (result < 0) + dev_err(dev, "Cannot set WUSB MAS allocation: %d\n", result); +out: + return result; +} + +/* + * Add an IE to the host's MMC + * + * @interval: See WUSB1.0[8.5.3.1] + * @repeat_cnt: See WUSB1.0[8.5.3.1] + * @handle: See WUSB1.0[8.5.3.1] + * @wuie: Pointer to the header of the WUSB IE data to add. + * MUST BE allocated in a kmalloc buffer (no stack or + * vmalloc). + * + * NOTE: the format of the WUSB IEs for MMCs are different to the + * normal MBOA MAC IEs (IE Id + Length in MBOA MAC vs. Length + + * Id in WUSB IEs). Standards...you gotta love'em. + */ +static int __hwahc_op_mmcie_add(struct wusbhc *wusbhc, u8 interval, + u8 repeat_cnt, u8 handle, + struct wuie_hdr *wuie) +{ + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + u8 iface_no = wa->usb_iface->cur_altsetting->desc.bInterfaceNumber; + + return usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + WUSB_REQ_ADD_MMC_IE, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + interval << 8 | repeat_cnt, + handle << 8 | iface_no, + wuie, wuie->bLength, 1000 /* FIXME: arbitrary */); +} + +/* + * Remove an IE to the host's MMC + * + * @handle: See WUSB1.0[8.5.3.1] + */ +static int __hwahc_op_mmcie_rm(struct wusbhc *wusbhc, u8 handle) +{ + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + u8 iface_no = wa->usb_iface->cur_altsetting->desc.bInterfaceNumber; + return usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + WUSB_REQ_REMOVE_MMC_IE, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0, handle << 8 | iface_no, + NULL, 0, 1000 /* FIXME: arbitrary */); +} + +/* + * Update device information for a given fake port + * + * @port_idx: Fake port to which device is connected (wusbhc index, not + * USB port number). + */ +static int __hwahc_op_dev_info_set(struct wusbhc *wusbhc, + struct wusb_dev *wusb_dev) +{ + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + u8 iface_no = wa->usb_iface->cur_altsetting->desc.bInterfaceNumber; + struct hwa_dev_info *dev_info; + int ret; + + /* fill out the Device Info buffer and send it */ + dev_info = kzalloc(sizeof(struct hwa_dev_info), GFP_KERNEL); + if (!dev_info) + return -ENOMEM; + uwb_mas_bm_copy_le(dev_info->bmDeviceAvailability, + &wusb_dev->availability); + dev_info->bDeviceAddress = wusb_dev->addr; + + /* + * If the descriptors haven't been read yet, use a default PHY + * rate of 53.3 Mbit/s only. The correct value will be used + * when this will be called again as part of the + * authentication process (which occurs after the descriptors + * have been read). + */ + if (wusb_dev->wusb_cap_descr) + dev_info->wPHYRates = wusb_dev->wusb_cap_descr->wPHYRates; + else + dev_info->wPHYRates = cpu_to_le16(USB_WIRELESS_PHY_53); + + ret = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + WUSB_REQ_SET_DEV_INFO, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0, wusb_dev->port_idx << 8 | iface_no, + dev_info, sizeof(struct hwa_dev_info), + 1000 /* FIXME: arbitrary */); + kfree(dev_info); + return ret; +} + +/* + * Set host's idea of which encryption (and key) method to use when + * talking to ad evice on a given port. + * + * If key is NULL, it means disable encryption for that "virtual port" + * (used when we disconnect). + */ +static int __hwahc_dev_set_key(struct wusbhc *wusbhc, u8 port_idx, u32 tkid, + const void *key, size_t key_size, + u8 key_idx) +{ + int result = -ENOMEM; + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + u8 iface_no = wa->usb_iface->cur_altsetting->desc.bInterfaceNumber; + struct usb_key_descriptor *keyd; + size_t keyd_len; + + keyd_len = sizeof(*keyd) + key_size; + keyd = kzalloc(keyd_len, GFP_KERNEL); + if (keyd == NULL) + return -ENOMEM; + + keyd->bLength = keyd_len; + keyd->bDescriptorType = USB_DT_KEY; + keyd->tTKID[0] = (tkid >> 0) & 0xff; + keyd->tTKID[1] = (tkid >> 8) & 0xff; + keyd->tTKID[2] = (tkid >> 16) & 0xff; + memcpy(keyd->bKeyData, key, key_size); + + result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + USB_REQ_SET_DESCRIPTOR, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + USB_DT_KEY << 8 | key_idx, + port_idx << 8 | iface_no, + keyd, keyd_len, 1000 /* FIXME: arbitrary */); + + memset(keyd, 0, sizeof(*keyd)); /* clear keys etc. */ + kfree(keyd); + return result; +} + +/* + * Set host's idea of which encryption (and key) method to use when + * talking to ad evice on a given port. + * + * If key is NULL, it means disable encryption for that "virtual port" + * (used when we disconnect). + */ +static int __hwahc_op_set_ptk(struct wusbhc *wusbhc, u8 port_idx, u32 tkid, + const void *key, size_t key_size) +{ + int result = -ENOMEM; + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + u8 iface_no = wa->usb_iface->cur_altsetting->desc.bInterfaceNumber; + u8 encryption_value; + + /* Tell the host which key to use to talk to the device */ + if (key) { + u8 key_idx = wusb_key_index(0, WUSB_KEY_INDEX_TYPE_PTK, + WUSB_KEY_INDEX_ORIGINATOR_HOST); + + result = __hwahc_dev_set_key(wusbhc, port_idx, tkid, + key, key_size, key_idx); + if (result < 0) + goto error_set_key; + encryption_value = wusbhc->ccm1_etd->bEncryptionValue; + } else { + /* FIXME: this should come from wusbhc->etd[UNSECURE].value */ + encryption_value = 0; + } + + /* Set the encryption type for commmunicating with the device */ + result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + USB_REQ_SET_ENCRYPTION, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + encryption_value, port_idx << 8 | iface_no, + NULL, 0, 1000 /* FIXME: arbitrary */); + if (result < 0) + dev_err(wusbhc->dev, "Can't set host's WUSB encryption for " + "port index %u to %s (value %d): %d\n", port_idx, + wusb_et_name(wusbhc->ccm1_etd->bEncryptionType), + wusbhc->ccm1_etd->bEncryptionValue, result); +error_set_key: + return result; +} + +/* + * Set host's GTK key + */ +static int __hwahc_op_set_gtk(struct wusbhc *wusbhc, u32 tkid, + const void *key, size_t key_size) +{ + u8 key_idx = wusb_key_index(0, WUSB_KEY_INDEX_TYPE_GTK, + WUSB_KEY_INDEX_ORIGINATOR_HOST); + + return __hwahc_dev_set_key(wusbhc, 0, tkid, key, key_size, key_idx); +} + +/* + * Get the Wire Adapter class-specific descriptor + * + * NOTE: this descriptor comes with the big bundled configuration + * descriptor that includes the interfaces' and endpoints', so + * we just look for it in the cached copy kept by the USB stack. + * + * NOTE2: We convert LE fields to CPU order. + */ +static int wa_fill_descr(struct wahc *wa) +{ + int result; + struct device *dev = &wa->usb_iface->dev; + char *itr; + struct usb_device *usb_dev = wa->usb_dev; + struct usb_descriptor_header *hdr; + struct usb_wa_descriptor *wa_descr; + size_t itr_size, actconfig_idx; + + actconfig_idx = (usb_dev->actconfig - usb_dev->config) / + sizeof(usb_dev->config[0]); + itr = usb_dev->rawdescriptors[actconfig_idx]; + itr_size = le16_to_cpu(usb_dev->actconfig->desc.wTotalLength); + while (itr_size >= sizeof(*hdr)) { + hdr = (struct usb_descriptor_header *) itr; + d_printf(3, dev, "Extra device descriptor: " + "type %02x/%u bytes @ %zu (%zu left)\n", + hdr->bDescriptorType, hdr->bLength, + (itr - usb_dev->rawdescriptors[actconfig_idx]), + itr_size); + if (hdr->bDescriptorType == USB_DT_WIRE_ADAPTER) + goto found; + itr += hdr->bLength; + itr_size -= hdr->bLength; + } + dev_err(dev, "cannot find Wire Adapter Class descriptor\n"); + return -ENODEV; + +found: + result = -EINVAL; + if (hdr->bLength > itr_size) { /* is it available? */ + dev_err(dev, "incomplete Wire Adapter Class descriptor " + "(%zu bytes left, %u needed)\n", + itr_size, hdr->bLength); + goto error; + } + if (hdr->bLength < sizeof(*wa->wa_descr)) { + dev_err(dev, "short Wire Adapter Class descriptor\n"); + goto error; + } + wa->wa_descr = wa_descr = (struct usb_wa_descriptor *) hdr; + /* Make LE fields CPU order */ + wa_descr->bcdWAVersion = le16_to_cpu(wa_descr->bcdWAVersion); + wa_descr->wNumRPipes = le16_to_cpu(wa_descr->wNumRPipes); + wa_descr->wRPipeMaxBlock = le16_to_cpu(wa_descr->wRPipeMaxBlock); + if (wa_descr->bcdWAVersion > 0x0100) + dev_warn(dev, "Wire Adapter v%d.%d newer than groked v1.0\n", + wa_descr->bcdWAVersion & 0xff00 >> 8, + wa_descr->bcdWAVersion & 0x00ff); + result = 0; +error: + return result; +} + +static struct hc_driver hwahc_hc_driver = { + .description = "hwa-hcd", + .product_desc = "Wireless USB HWA host controller", + .hcd_priv_size = sizeof(struct hwahc) - sizeof(struct usb_hcd), + .irq = NULL, /* FIXME */ + .flags = HCD_USB2, /* FIXME */ + .reset = hwahc_op_reset, + .start = hwahc_op_start, + .pci_suspend = hwahc_op_suspend, + .pci_resume = hwahc_op_resume, + .stop = hwahc_op_stop, + .get_frame_number = hwahc_op_get_frame_number, + .urb_enqueue = hwahc_op_urb_enqueue, + .urb_dequeue = hwahc_op_urb_dequeue, + .endpoint_disable = hwahc_op_endpoint_disable, + + .hub_status_data = wusbhc_rh_status_data, + .hub_control = wusbhc_rh_control, + .bus_suspend = wusbhc_rh_suspend, + .bus_resume = wusbhc_rh_resume, + .start_port_reset = wusbhc_rh_start_port_reset, +}; + +static int hwahc_security_create(struct hwahc *hwahc) +{ + int result; + struct wusbhc *wusbhc = &hwahc->wusbhc; + struct usb_device *usb_dev = hwahc->wa.usb_dev; + struct device *dev = &usb_dev->dev; + struct usb_security_descriptor *secd; + struct usb_encryption_descriptor *etd; + void *itr, *top; + size_t itr_size, needed, bytes; + u8 index; + char buf[64]; + + /* Find the host's security descriptors in the config descr bundle */ + index = (usb_dev->actconfig - usb_dev->config) / + sizeof(usb_dev->config[0]); + itr = usb_dev->rawdescriptors[index]; + itr_size = le16_to_cpu(usb_dev->actconfig->desc.wTotalLength); + top = itr + itr_size; + result = __usb_get_extra_descriptor(usb_dev->rawdescriptors[index], + le16_to_cpu(usb_dev->actconfig->desc.wTotalLength), + USB_DT_SECURITY, (void **) &secd); + if (result == -1) { + dev_warn(dev, "BUG? WUSB host has no security descriptors\n"); + return 0; + } + needed = sizeof(*secd); + if (top - (void *)secd < needed) { + dev_err(dev, "BUG? Not enough data to process security " + "descriptor header (%zu bytes left vs %zu needed)\n", + top - (void *) secd, needed); + return 0; + } + needed = le16_to_cpu(secd->wTotalLength); + if (top - (void *)secd < needed) { + dev_err(dev, "BUG? Not enough data to process security " + "descriptors (%zu bytes left vs %zu needed)\n", + top - (void *) secd, needed); + return 0; + } + /* Walk over the sec descriptors and store CCM1's on wusbhc */ + itr = (void *) secd + sizeof(*secd); + top = (void *) secd + le16_to_cpu(secd->wTotalLength); + index = 0; + bytes = 0; + while (itr < top) { + etd = itr; + if (top - itr < sizeof(*etd)) { + dev_err(dev, "BUG: bad host security descriptor; " + "not enough data (%zu vs %zu left)\n", + top - itr, sizeof(*etd)); + break; + } + if (etd->bLength < sizeof(*etd)) { + dev_err(dev, "BUG: bad host encryption descriptor; " + "descriptor is too short " + "(%zu vs %zu needed)\n", + (size_t)etd->bLength, sizeof(*etd)); + break; + } + itr += etd->bLength; + bytes += snprintf(buf + bytes, sizeof(buf) - bytes, + "%s (0x%02x) ", + wusb_et_name(etd->bEncryptionType), + etd->bEncryptionValue); + wusbhc->ccm1_etd = etd; + } + dev_info(dev, "supported encryption types: %s\n", buf); + if (wusbhc->ccm1_etd == NULL) { + dev_err(dev, "E: host doesn't support CCM-1 crypto\n"); + return 0; + } + /* Pretty print what we support */ + return 0; +} + +static void hwahc_security_release(struct hwahc *hwahc) +{ + /* nothing to do here so far... */ +} + +static int hwahc_create(struct hwahc *hwahc, struct usb_interface *iface) +{ + int result; + struct device *dev = &iface->dev; + struct wusbhc *wusbhc = &hwahc->wusbhc; + struct wahc *wa = &hwahc->wa; + struct usb_device *usb_dev = interface_to_usbdev(iface); + + wa->usb_dev = usb_get_dev(usb_dev); /* bind the USB device */ + wa->usb_iface = usb_get_intf(iface); + wusbhc->dev = dev; + wusbhc->uwb_rc = uwb_rc_get_by_grandpa(iface->dev.parent); + if (wusbhc->uwb_rc == NULL) { + result = -ENODEV; + dev_err(dev, "Cannot get associated UWB Host Controller\n"); + goto error_rc_get; + } + result = wa_fill_descr(wa); /* Get the device descriptor */ + if (result < 0) + goto error_fill_descriptor; + if (wa->wa_descr->bNumPorts > USB_MAXCHILDREN) { + dev_err(dev, "FIXME: USB_MAXCHILDREN too low for WUSB " + "adapter (%u ports)\n", wa->wa_descr->bNumPorts); + wusbhc->ports_max = USB_MAXCHILDREN; + } else { + wusbhc->ports_max = wa->wa_descr->bNumPorts; + } + wusbhc->mmcies_max = wa->wa_descr->bNumMMCIEs; + wusbhc->start = __hwahc_op_wusbhc_start; + wusbhc->stop = __hwahc_op_wusbhc_stop; + wusbhc->mmcie_add = __hwahc_op_mmcie_add; + wusbhc->mmcie_rm = __hwahc_op_mmcie_rm; + wusbhc->dev_info_set = __hwahc_op_dev_info_set; + wusbhc->bwa_set = __hwahc_op_bwa_set; + wusbhc->set_num_dnts = __hwahc_op_set_num_dnts; + wusbhc->set_ptk = __hwahc_op_set_ptk; + wusbhc->set_gtk = __hwahc_op_set_gtk; + result = hwahc_security_create(hwahc); + if (result < 0) { + dev_err(dev, "Can't initialize security: %d\n", result); + goto error_security_create; + } + wa->wusb = wusbhc; /* FIXME: ugly, need to fix */ + result = wusbhc_create(&hwahc->wusbhc); + if (result < 0) { + dev_err(dev, "Can't create WUSB HC structures: %d\n", result); + goto error_wusbhc_create; + } + result = wa_create(&hwahc->wa, iface); + if (result < 0) + goto error_wa_create; + return 0; + +error_wa_create: + wusbhc_destroy(&hwahc->wusbhc); +error_wusbhc_create: + /* WA Descr fill allocs no resources */ +error_security_create: +error_fill_descriptor: + uwb_rc_put(wusbhc->uwb_rc); +error_rc_get: + usb_put_intf(iface); + usb_put_dev(usb_dev); + return result; +} + +static void hwahc_destroy(struct hwahc *hwahc) +{ + struct wusbhc *wusbhc = &hwahc->wusbhc; + + d_fnstart(1, NULL, "(hwahc %p)\n", hwahc); + mutex_lock(&wusbhc->mutex); + __wa_destroy(&hwahc->wa); + wusbhc_destroy(&hwahc->wusbhc); + hwahc_security_release(hwahc); + hwahc->wusbhc.dev = NULL; + uwb_rc_put(wusbhc->uwb_rc); + usb_put_intf(hwahc->wa.usb_iface); + usb_put_dev(hwahc->wa.usb_dev); + mutex_unlock(&wusbhc->mutex); + d_fnend(1, NULL, "(hwahc %p) = void\n", hwahc); +} + +static void hwahc_init(struct hwahc *hwahc) +{ + wa_init(&hwahc->wa); +} + +static int hwahc_probe(struct usb_interface *usb_iface, + const struct usb_device_id *id) +{ + int result; + struct usb_hcd *usb_hcd; + struct wusbhc *wusbhc; + struct hwahc *hwahc; + struct device *dev = &usb_iface->dev; + + d_fnstart(4, dev, "(%p, %p)\n", usb_iface, id); + result = -ENOMEM; + usb_hcd = usb_create_hcd(&hwahc_hc_driver, &usb_iface->dev, "wusb-hwa"); + if (usb_hcd == NULL) { + dev_err(dev, "unable to allocate instance\n"); + goto error_alloc; + } + usb_hcd->wireless = 1; + usb_hcd->flags |= HCD_FLAG_SAW_IRQ; + wusbhc = usb_hcd_to_wusbhc(usb_hcd); + hwahc = container_of(wusbhc, struct hwahc, wusbhc); + hwahc_init(hwahc); + result = hwahc_create(hwahc, usb_iface); + if (result < 0) { + dev_err(dev, "Cannot initialize internals: %d\n", result); + goto error_hwahc_create; + } + result = usb_add_hcd(usb_hcd, 0, 0); + if (result < 0) { + dev_err(dev, "Cannot add HCD: %d\n", result); + goto error_add_hcd; + } + result = wusbhc_b_create(&hwahc->wusbhc); + if (result < 0) { + dev_err(dev, "Cannot setup phase B of WUSBHC: %d\n", result); + goto error_wusbhc_b_create; + } + d_fnend(4, dev, "(%p, %p) = 0\n", usb_iface, id); + return 0; + +error_wusbhc_b_create: + usb_remove_hcd(usb_hcd); +error_add_hcd: + hwahc_destroy(hwahc); +error_hwahc_create: + usb_put_hcd(usb_hcd); +error_alloc: + d_fnend(4, dev, "(%p, %p) = %d\n", usb_iface, id, result); + return result; +} + +static void hwahc_disconnect(struct usb_interface *usb_iface) +{ + struct usb_hcd *usb_hcd; + struct wusbhc *wusbhc; + struct hwahc *hwahc; + + usb_hcd = usb_get_intfdata(usb_iface); + wusbhc = usb_hcd_to_wusbhc(usb_hcd); + hwahc = container_of(wusbhc, struct hwahc, wusbhc); + + d_fnstart(1, NULL, "(hwahc %p [usb_iface %p])\n", hwahc, usb_iface); + wusbhc_b_destroy(&hwahc->wusbhc); + usb_remove_hcd(usb_hcd); + hwahc_destroy(hwahc); + usb_put_hcd(usb_hcd); + d_fnend(1, NULL, "(hwahc %p [usb_iface %p]) = void\n", hwahc, + usb_iface); +} + +/** USB device ID's that we handle */ +static struct usb_device_id hwahc_id_table[] = { + /* FIXME: use class labels for this */ + { USB_INTERFACE_INFO(0xe0, 0x02, 0x01), }, + {}, +}; +MODULE_DEVICE_TABLE(usb, hwahc_id_table); + +static struct usb_driver hwahc_driver = { + .name = "hwa-hc", + .probe = hwahc_probe, + .disconnect = hwahc_disconnect, + .id_table = hwahc_id_table, +}; + +static int __init hwahc_driver_init(void) +{ + int result; + result = usb_register(&hwahc_driver); + if (result < 0) { + printk(KERN_ERR "WA-CDS: Cannot register USB driver: %d\n", + result); + goto error_usb_register; + } + return 0; + +error_usb_register: + return result; + +} +module_init(hwahc_driver_init); + +static void __exit hwahc_driver_exit(void) +{ + usb_deregister(&hwahc_driver); +} +module_exit(hwahc_driver_exit); + + +MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>"); +MODULE_DESCRIPTION("Host Wired Adapter USB Host Control Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c index ce1ca0ba0515..4dda31b26892 100644 --- a/drivers/usb/host/isp116x-hcd.c +++ b/drivers/usb/host/isp116x-hcd.c @@ -1562,11 +1562,12 @@ static int __devinit isp116x_probe(struct platform_device *pdev) { struct usb_hcd *hcd; struct isp116x *isp116x; - struct resource *addr, *data; + struct resource *addr, *data, *ires; void __iomem *addr_reg; void __iomem *data_reg; int irq; int ret = 0; + unsigned long irqflags; if (pdev->num_resources < 3) { ret = -ENODEV; @@ -1575,12 +1576,16 @@ static int __devinit isp116x_probe(struct platform_device *pdev) data = platform_get_resource(pdev, IORESOURCE_MEM, 0); addr = platform_get_resource(pdev, IORESOURCE_MEM, 1); - irq = platform_get_irq(pdev, 0); - if (!addr || !data || irq < 0) { + ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + + if (!addr || !data || !ires) { ret = -ENODEV; goto err1; } + irq = ires->start; + irqflags = ires->flags & IRQF_TRIGGER_MASK; + if (pdev->dev.dma_mask) { DBG("DMA not supported\n"); ret = -EINVAL; @@ -1634,7 +1639,7 @@ static int __devinit isp116x_probe(struct platform_device *pdev) goto err6; } - ret = usb_add_hcd(hcd, irq, IRQF_DISABLED); + ret = usb_add_hcd(hcd, irq, irqflags | IRQF_DISABLED); if (ret) goto err6; diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c index 051ef7b6bdc6..af849f596135 100644 --- a/drivers/usb/host/isp1760-if.c +++ b/drivers/usb/host/isp1760-if.c @@ -218,7 +218,7 @@ static int __devinit isp1761_pci_probe(struct pci_dev *dev, * and reading back and checking the contents are same or not */ if (reg_data != 0xFACE) { - err("scratch register mismatch %x", reg_data); + dev_err(&dev->dev, "scratch register mismatch %x\n", reg_data); goto clean; } @@ -232,9 +232,10 @@ static int __devinit isp1761_pci_probe(struct pci_dev *dev, hcd = isp1760_register(pci_mem_phy0, length, dev->irq, IRQF_SHARED | IRQF_DISABLED, &dev->dev, dev_name(&dev->dev), devflags); - pci_set_drvdata(dev, hcd); - if (!hcd) + if (!IS_ERR(hcd)) { + pci_set_drvdata(dev, hcd); return 0; + } clean: status = -ENODEV; iounmap(iobase); diff --git a/drivers/usb/host/ohci-dbg.c b/drivers/usb/host/ohci-dbg.c index 7cef1d2f7ccc..d3269656aa4d 100644 --- a/drivers/usb/host/ohci-dbg.c +++ b/drivers/usb/host/ohci-dbg.c @@ -649,7 +649,7 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf) ohci_dbg_sw (ohci, &next, &size, "bus %s, device %s\n" "%s\n" - "%s version " DRIVER_VERSION "\n", + "%s\n", hcd->self.controller->bus->name, dev_name(hcd->self.controller), hcd->product_desc, diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index 89901962cbfd..8aa3f4556a32 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -46,7 +46,6 @@ #include "../core/hcd.h" -#define DRIVER_VERSION "2006 August 04" #define DRIVER_AUTHOR "Roman Weissgaerber, David Brownell" #define DRIVER_DESC "USB 1.1 'Open' Host Controller (OHCI) Driver" @@ -984,10 +983,8 @@ static int ohci_restart (struct ohci_hcd *ohci) /*-------------------------------------------------------------------------*/ -#define DRIVER_INFO DRIVER_VERSION " " DRIVER_DESC - MODULE_AUTHOR (DRIVER_AUTHOR); -MODULE_DESCRIPTION (DRIVER_INFO); +MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE ("GPL"); #ifdef CONFIG_PCI @@ -1078,12 +1075,18 @@ MODULE_LICENSE ("GPL"); #define SM501_OHCI_DRIVER ohci_hcd_sm501_driver #endif +#ifdef CONFIG_MFD_TC6393XB +#include "ohci-tmio.c" +#define TMIO_OHCI_DRIVER ohci_hcd_tmio_driver +#endif + #if !defined(PCI_DRIVER) && \ !defined(PLATFORM_DRIVER) && \ !defined(OF_PLATFORM_DRIVER) && \ !defined(SA1111_DRIVER) && \ !defined(PS3_SYSTEM_BUS_DRIVER) && \ !defined(SM501_OHCI_DRIVER) && \ + !defined(TMIO_OHCI_DRIVER) && \ !defined(SSB_OHCI_DRIVER) #error "missing bus glue for ohci-hcd" #endif @@ -1095,9 +1098,10 @@ static int __init ohci_hcd_mod_init(void) if (usb_disabled()) return -ENODEV; - printk (KERN_DEBUG "%s: " DRIVER_INFO "\n", hcd_name); + printk(KERN_INFO "%s: " DRIVER_DESC "\n", hcd_name); pr_debug ("%s: block sizes: ed %Zd td %Zd\n", hcd_name, sizeof (struct ed), sizeof (struct td)); + set_bit(USB_OHCI_LOADED, &usb_hcds_loaded); #ifdef DEBUG ohci_debug_root = debugfs_create_dir("ohci", NULL); @@ -1149,13 +1153,25 @@ static int __init ohci_hcd_mod_init(void) goto error_sm501; #endif +#ifdef TMIO_OHCI_DRIVER + retval = platform_driver_register(&TMIO_OHCI_DRIVER); + if (retval < 0) + goto error_tmio; +#endif + return retval; /* Error path */ +#ifdef TMIO_OHCI_DRIVER + platform_driver_unregister(&TMIO_OHCI_DRIVER); + error_tmio: +#endif #ifdef SM501_OHCI_DRIVER + platform_driver_unregister(&SM501_OHCI_DRIVER); error_sm501: #endif #ifdef SSB_OHCI_DRIVER + ssb_driver_unregister(&SSB_OHCI_DRIVER); error_ssb: #endif #ifdef PCI_DRIVER @@ -1184,12 +1200,16 @@ static int __init ohci_hcd_mod_init(void) error_debug: #endif + clear_bit(USB_OHCI_LOADED, &usb_hcds_loaded); return retval; } module_init(ohci_hcd_mod_init); static void __exit ohci_hcd_mod_exit(void) { +#ifdef TMIO_OHCI_DRIVER + platform_driver_unregister(&TMIO_OHCI_DRIVER); +#endif #ifdef SM501_OHCI_DRIVER platform_driver_unregister(&SM501_OHCI_DRIVER); #endif @@ -1214,6 +1234,7 @@ static void __exit ohci_hcd_mod_exit(void) #ifdef DEBUG debugfs_remove(ohci_debug_root); #endif + clear_bit(USB_OHCI_LOADED, &usb_hcds_loaded); } module_exit(ohci_hcd_mod_exit); diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c index 7ea9a7b31155..32bbce9718f0 100644 --- a/drivers/usb/host/ohci-hub.c +++ b/drivers/usb/host/ohci-hub.c @@ -359,21 +359,24 @@ static void ohci_finish_controller_resume(struct usb_hcd *hcd) /* Carry out polling-, autostop-, and autoresume-related state changes */ static int ohci_root_hub_state_changes(struct ohci_hcd *ohci, int changed, - int any_connected) + int any_connected, int rhsc_status) { int poll_rh = 1; - int rhsc; + int rhsc_enable; - rhsc = ohci_readl(ohci, &ohci->regs->intrenable) & OHCI_INTR_RHSC; - switch (ohci->hc_control & OHCI_CTRL_HCFS) { + /* Some broken controllers never turn off RHCS in the interrupt + * status register. For their sake we won't re-enable RHSC + * interrupts if the interrupt bit is already active. + */ + rhsc_enable = ohci_readl(ohci, &ohci->regs->intrenable) & + OHCI_INTR_RHSC; + switch (ohci->hc_control & OHCI_CTRL_HCFS) { case OHCI_USB_OPER: - /* If no status changes are pending, enable status-change - * interrupts. - */ - if (!rhsc && !changed) { - rhsc = OHCI_INTR_RHSC; - ohci_writel(ohci, rhsc, &ohci->regs->intrenable); + /* If no status changes are pending, enable RHSC interrupts. */ + if (!rhsc_enable && !rhsc_status && !changed) { + rhsc_enable = OHCI_INTR_RHSC; + ohci_writel(ohci, rhsc_enable, &ohci->regs->intrenable); } /* Keep on polling until we know a device is connected @@ -383,7 +386,7 @@ static int ohci_root_hub_state_changes(struct ohci_hcd *ohci, int changed, if (any_connected || !device_may_wakeup(&ohci_to_hcd(ohci) ->self.root_hub->dev)) { - if (rhsc) + if (rhsc_enable) poll_rh = 0; } else { ohci->autostop = 1; @@ -396,34 +399,45 @@ static int ohci_root_hub_state_changes(struct ohci_hcd *ohci, int changed, ohci->autostop = 0; ohci->next_statechange = jiffies + STATECHANGE_DELAY; - } else if (rhsc && time_after_eq(jiffies, + } else if (time_after_eq(jiffies, ohci->next_statechange) && !ohci->ed_rm_list && !(ohci->hc_control & OHCI_SCHED_ENABLES)) { ohci_rh_suspend(ohci, 1); - poll_rh = 0; + if (rhsc_enable) + poll_rh = 0; } } break; - /* if there is a port change, autostart or ask to be resumed */ case OHCI_USB_SUSPEND: case OHCI_USB_RESUME: + /* if there is a port change, autostart or ask to be resumed */ if (changed) { if (ohci->autostop) ohci_rh_resume(ohci); else usb_hcd_resume_root_hub(ohci_to_hcd(ohci)); - } else { - if (!rhsc && (ohci->autostop || - ohci_to_hcd(ohci)->self.root_hub-> - do_remote_wakeup)) - ohci_writel(ohci, OHCI_INTR_RHSC, - &ohci->regs->intrenable); - /* everything is idle, no need for polling */ + /* If remote wakeup is disabled, stop polling */ + } else if (!ohci->autostop && + !ohci_to_hcd(ohci)->self.root_hub-> + do_remote_wakeup) { poll_rh = 0; + + } else { + /* If no status changes are pending, + * enable RHSC interrupts + */ + if (!rhsc_enable && !rhsc_status) { + rhsc_enable = OHCI_INTR_RHSC; + ohci_writel(ohci, rhsc_enable, + &ohci->regs->intrenable); + } + /* Keep polling until RHSC is enabled */ + if (rhsc_enable) + poll_rh = 0; } break; } @@ -441,18 +455,22 @@ static inline int ohci_rh_resume(struct ohci_hcd *ohci) * autostop isn't used when CONFIG_PM is turned off. */ static int ohci_root_hub_state_changes(struct ohci_hcd *ohci, int changed, - int any_connected) + int any_connected, int rhsc_status) { /* If RHSC is enabled, don't poll */ if (ohci_readl(ohci, &ohci->regs->intrenable) & OHCI_INTR_RHSC) return 0; - /* If no status changes are pending, enable status-change interrupts */ - if (!changed) { - ohci_writel(ohci, OHCI_INTR_RHSC, &ohci->regs->intrenable); - return 0; - } - return 1; + /* If status changes are pending, continue polling. + * Conversely, if no status changes are pending but the RHSC + * status bit was set, then RHSC may be broken so continue polling. + */ + if (changed || rhsc_status) + return 1; + + /* It's safe to re-enable RHSC interrupts */ + ohci_writel(ohci, OHCI_INTR_RHSC, &ohci->regs->intrenable); + return 0; } #endif /* CONFIG_PM */ @@ -467,6 +485,7 @@ ohci_hub_status_data (struct usb_hcd *hcd, char *buf) struct ohci_hcd *ohci = hcd_to_ohci (hcd); int i, changed = 0, length = 1; int any_connected = 0; + int rhsc_status; unsigned long flags; spin_lock_irqsave (&ohci->lock, flags); @@ -492,12 +511,10 @@ ohci_hub_status_data (struct usb_hcd *hcd, char *buf) length++; } - /* Some broken controllers never turn off RHCS in the interrupt - * status register. For their sake we won't re-enable RHSC - * interrupts if the flag is already set. - */ - if (ohci_readl(ohci, &ohci->regs->intrstatus) & OHCI_INTR_RHSC) - changed = 1; + /* Clear the RHSC status flag before reading the port statuses */ + ohci_writel(ohci, OHCI_INTR_RHSC, &ohci->regs->intrstatus); + rhsc_status = ohci_readl(ohci, &ohci->regs->intrstatus) & + OHCI_INTR_RHSC; /* look at each port */ for (i = 0; i < ohci->num_ports; i++) { @@ -517,7 +534,7 @@ ohci_hub_status_data (struct usb_hcd *hcd, char *buf) } hcd->poll_rh = ohci_root_hub_state_changes(ohci, changed, - any_connected); + any_connected, rhsc_status); done: spin_unlock_irqrestore (&ohci->lock, flags); diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c index 522185629624..91697bdb399f 100644 --- a/drivers/usb/host/ohci-omap.c +++ b/drivers/usb/host/ohci-omap.c @@ -231,7 +231,7 @@ static int ohci_omap_init(struct usb_hcd *hcd) omap_ohci_clock_power(1); - if (cpu_is_omap1510()) { + if (cpu_is_omap15xx()) { omap_1510_local_bus_power(1); omap_1510_local_bus_init(); } @@ -319,7 +319,7 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver, if (IS_ERR(usb_host_ck)) return PTR_ERR(usb_host_ck); - if (!cpu_is_omap1510()) + if (!cpu_is_omap15xx()) usb_dc_ck = clk_get(0, "usb_dc_ck"); else usb_dc_ck = clk_get(0, "lb_ck"); diff --git a/drivers/usb/host/ohci-pnx4008.c b/drivers/usb/host/ohci-pnx4008.c index 658a2a978c32..e306ca6aef3d 100644 --- a/drivers/usb/host/ohci-pnx4008.c +++ b/drivers/usb/host/ohci-pnx4008.c @@ -331,7 +331,7 @@ static int __devinit usb_hcd_pnx4008_probe(struct platform_device *pdev) int ret = 0, irq; - dev_dbg(&pdev->dev, "%s: " DRIVER_INFO " (pnx4008)\n", hcd_name); + dev_dbg(&pdev->dev, "%s: " DRIVER_DESC " (pnx4008)\n", hcd_name); if (usb_disabled()) { err("USB is disabled"); ret = -ENODEV; diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c new file mode 100644 index 000000000000..f9f134af0bd1 --- /dev/null +++ b/drivers/usb/host/ohci-tmio.c @@ -0,0 +1,376 @@ +/* + * OHCI HCD(Host Controller Driver) for USB. + * + *(C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> + *(C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net> + *(C) Copyright 2002 Hewlett-Packard Company + * + * Bus glue for Toshiba Mobile IO(TMIO) Controller's OHCI core + * (C) Copyright 2005 Chris Humbert <mahadri-usb@drigon.com> + * (C) Copyright 2007, 2008 Dmitry Baryshkov <dbaryshkov@gmail.com> + * + * This is known to work with the following variants: + * TC6393XB revision 3 (32kB SRAM) + * + * The TMIO's OHCI core DMAs through a small internal buffer that + * is directly addressable by the CPU. + * + * Written from sparse documentation from Toshiba and Sharp's driver + * for the 2.4 kernel, + * usb-ohci-tc6393.c(C) Copyright 2004 Lineo Solutions, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/*#include <linux/fs.h> +#include <linux/mount.h> +#include <linux/pagemap.h> +#include <linux/init.h> +#include <linux/namei.h> +#include <linux/sched.h>*/ +#include <linux/platform_device.h> +#include <linux/mfd/core.h> +#include <linux/mfd/tmio.h> +#include <linux/dma-mapping.h> + +/*-------------------------------------------------------------------------*/ + +/* + * USB Host Controller Configuration Register + */ +#define CCR_REVID 0x08 /* b Revision ID */ +#define CCR_BASE 0x10 /* l USB Control Register Base Address Low */ +#define CCR_ILME 0x40 /* b Internal Local Memory Enable */ +#define CCR_PM 0x4c /* w Power Management */ +#define CCR_INTC 0x50 /* b INT Control */ +#define CCR_LMW1L 0x54 /* w Local Memory Window 1 LMADRS Low */ +#define CCR_LMW1H 0x56 /* w Local Memory Window 1 LMADRS High */ +#define CCR_LMW1BL 0x58 /* w Local Memory Window 1 Base Address Low */ +#define CCR_LMW1BH 0x5A /* w Local Memory Window 1 Base Address High */ +#define CCR_LMW2L 0x5C /* w Local Memory Window 2 LMADRS Low */ +#define CCR_LMW2H 0x5E /* w Local Memory Window 2 LMADRS High */ +#define CCR_LMW2BL 0x60 /* w Local Memory Window 2 Base Address Low */ +#define CCR_LMW2BH 0x62 /* w Local Memory Window 2 Base Address High */ +#define CCR_MISC 0xFC /* b MISC */ + +#define CCR_PM_GKEN 0x0001 +#define CCR_PM_CKRNEN 0x0002 +#define CCR_PM_USBPW1 0x0004 +#define CCR_PM_USBPW2 0x0008 +#define CCR_PM_USBPW3 0x0008 +#define CCR_PM_PMEE 0x0100 +#define CCR_PM_PMES 0x8000 + +/*-------------------------------------------------------------------------*/ + +struct tmio_hcd { + void __iomem *ccr; + spinlock_t lock; /* protects RMW cycles */ +}; + +#define hcd_to_tmio(hcd) ((struct tmio_hcd *)(hcd_to_ohci(hcd) + 1)) + +/*-------------------------------------------------------------------------*/ + +static void tmio_write_pm(struct platform_device *dev) +{ + struct usb_hcd *hcd = platform_get_drvdata(dev); + struct tmio_hcd *tmio = hcd_to_tmio(hcd); + u16 pm; + unsigned long flags; + + spin_lock_irqsave(&tmio->lock, flags); + + pm = CCR_PM_GKEN | CCR_PM_CKRNEN | + CCR_PM_PMEE | CCR_PM_PMES; + + tmio_iowrite16(pm, tmio->ccr + CCR_PM); + spin_unlock_irqrestore(&tmio->lock, flags); +} + +static void tmio_stop_hc(struct platform_device *dev) +{ + struct usb_hcd *hcd = platform_get_drvdata(dev); + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + struct tmio_hcd *tmio = hcd_to_tmio(hcd); + u16 pm; + + pm = CCR_PM_GKEN | CCR_PM_CKRNEN; + switch (ohci->num_ports) { + default: + dev_err(&dev->dev, "Unsupported amount of ports: %d\n", ohci->num_ports); + case 3: + pm |= CCR_PM_USBPW3; + case 2: + pm |= CCR_PM_USBPW2; + case 1: + pm |= CCR_PM_USBPW1; + } + tmio_iowrite8(0, tmio->ccr + CCR_INTC); + tmio_iowrite8(0, tmio->ccr + CCR_ILME); + tmio_iowrite16(0, tmio->ccr + CCR_BASE); + tmio_iowrite16(0, tmio->ccr + CCR_BASE + 2); + tmio_iowrite16(pm, tmio->ccr + CCR_PM); +} + +static void tmio_start_hc(struct platform_device *dev) +{ + struct usb_hcd *hcd = platform_get_drvdata(dev); + struct tmio_hcd *tmio = hcd_to_tmio(hcd); + unsigned long base = hcd->rsrc_start; + + tmio_write_pm(dev); + tmio_iowrite16(base, tmio->ccr + CCR_BASE); + tmio_iowrite16(base >> 16, tmio->ccr + CCR_BASE + 2); + tmio_iowrite8(1, tmio->ccr + CCR_ILME); + tmio_iowrite8(2, tmio->ccr + CCR_INTC); + + dev_info(&dev->dev, "revision %d @ 0x%08llx, irq %d\n", + tmio_ioread8(tmio->ccr + CCR_REVID), hcd->rsrc_start, hcd->irq); +} + +static int ohci_tmio_start(struct usb_hcd *hcd) +{ + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + int ret; + + if ((ret = ohci_init(ohci)) < 0) + return ret; + + if ((ret = ohci_run(ohci)) < 0) { + err("can't start %s", hcd->self.bus_name); + ohci_stop(hcd); + return ret; + } + + return 0; +} + +static const struct hc_driver ohci_tmio_hc_driver = { + .description = hcd_name, + .product_desc = "TMIO OHCI USB Host Controller", + .hcd_priv_size = sizeof(struct ohci_hcd) + sizeof (struct tmio_hcd), + + /* generic hardware linkage */ + .irq = ohci_irq, + .flags = HCD_USB11 | HCD_MEMORY | HCD_LOCAL_MEM, + + /* basic lifecycle operations */ + .start = ohci_tmio_start, + .stop = ohci_stop, + .shutdown = ohci_shutdown, + + /* managing i/o requests and associated device resources */ + .urb_enqueue = ohci_urb_enqueue, + .urb_dequeue = ohci_urb_dequeue, + .endpoint_disable = ohci_endpoint_disable, + + /* scheduling support */ + .get_frame_number = ohci_get_frame, + + /* root hub support */ + .hub_status_data = ohci_hub_status_data, + .hub_control = ohci_hub_control, +#ifdef CONFIG_PM + .bus_suspend = ohci_bus_suspend, + .bus_resume = ohci_bus_resume, +#endif + .start_port_reset = ohci_start_port_reset, +}; + +/*-------------------------------------------------------------------------*/ +static struct platform_driver ohci_hcd_tmio_driver; + +static int __devinit ohci_hcd_tmio_drv_probe(struct platform_device *dev) +{ + struct mfd_cell *cell = dev->dev.platform_data; + struct resource *regs = platform_get_resource(dev, IORESOURCE_MEM, 0); + struct resource *config = platform_get_resource(dev, IORESOURCE_MEM, 1); + struct resource *sram = platform_get_resource(dev, IORESOURCE_MEM, 2); + int irq = platform_get_irq(dev, 0); + struct tmio_hcd *tmio; + struct ohci_hcd *ohci; + struct usb_hcd *hcd; + int ret; + + if (usb_disabled()) + return -ENODEV; + + if (!cell) + return -EINVAL; + + hcd = usb_create_hcd(&ohci_tmio_hc_driver, &dev->dev, dev->dev.bus_id); + if (!hcd) { + ret = -ENOMEM; + goto err_usb_create_hcd; + } + + hcd->rsrc_start = regs->start; + hcd->rsrc_len = regs->end - regs->start + 1; + + tmio = hcd_to_tmio(hcd); + + spin_lock_init(&tmio->lock); + + tmio->ccr = ioremap(config->start, config->end - config->start + 1); + if (!tmio->ccr) { + ret = -ENOMEM; + goto err_ioremap_ccr; + } + + hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); + if (!hcd->regs) { + ret = -ENOMEM; + goto err_ioremap_regs; + } + + if (!dma_declare_coherent_memory(&dev->dev, sram->start, + sram->start, + sram->end - sram->start + 1, + DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE)) { + ret = -EBUSY; + goto err_dma_declare; + } + + if (cell->enable) { + ret = cell->enable(dev); + if (ret) + goto err_enable; + } + + tmio_start_hc(dev); + ohci = hcd_to_ohci(hcd); + ohci_hcd_init(ohci); + + ret = usb_add_hcd(hcd, irq, IRQF_DISABLED); + if (ret) + goto err_add_hcd; + + if (ret == 0) + return ret; + + usb_remove_hcd(hcd); + +err_add_hcd: + tmio_stop_hc(dev); + if (cell->disable) + cell->disable(dev); +err_enable: + dma_release_declared_memory(&dev->dev); +err_dma_declare: + iounmap(hcd->regs); +err_ioremap_regs: + iounmap(tmio->ccr); +err_ioremap_ccr: + usb_put_hcd(hcd); +err_usb_create_hcd: + + return ret; +} + +static int __devexit ohci_hcd_tmio_drv_remove(struct platform_device *dev) +{ + struct usb_hcd *hcd = platform_get_drvdata(dev); + struct tmio_hcd *tmio = hcd_to_tmio(hcd); + struct mfd_cell *cell = dev->dev.platform_data; + + usb_remove_hcd(hcd); + tmio_stop_hc(dev); + if (cell->disable) + cell->disable(dev); + dma_release_declared_memory(&dev->dev); + iounmap(hcd->regs); + iounmap(tmio->ccr); + usb_put_hcd(hcd); + + platform_set_drvdata(dev, NULL); + + return 0; +} + +#ifdef CONFIG_PM +static int ohci_hcd_tmio_drv_suspend(struct platform_device *dev, pm_message_t state) +{ + struct mfd_cell *cell = dev->dev.platform_data; + struct usb_hcd *hcd = platform_get_drvdata(dev); + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + struct tmio_hcd *tmio = hcd_to_tmio(hcd); + unsigned long flags; + u8 misc; + int ret; + + if (time_before(jiffies, ohci->next_statechange)) + msleep(5); + ohci->next_statechange = jiffies; + + spin_lock_irqsave(&tmio->lock, flags); + + misc = tmio_ioread8(tmio->ccr + CCR_MISC); + misc |= 1 << 3; /* USSUSP */ + tmio_iowrite8(misc, tmio->ccr + CCR_MISC); + + spin_unlock_irqrestore(&tmio->lock, flags); + + if (cell->suspend) { + ret = cell->suspend(dev); + if (ret) + return ret; + } + + hcd->state = HC_STATE_SUSPENDED; + + return 0; +} + +static int ohci_hcd_tmio_drv_resume(struct platform_device *dev) +{ + struct mfd_cell *cell = dev->dev.platform_data; + struct usb_hcd *hcd = platform_get_drvdata(dev); + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + struct tmio_hcd *tmio = hcd_to_tmio(hcd); + unsigned long flags; + u8 misc; + int ret; + + if (time_before(jiffies, ohci->next_statechange)) + msleep(5); + ohci->next_statechange = jiffies; + + if (cell->resume) { + ret = cell->resume(dev); + if (ret) + return ret; + } + + tmio_start_hc(dev); + + spin_lock_irqsave(&tmio->lock, flags); + + misc = tmio_ioread8(tmio->ccr + CCR_MISC); + misc &= ~(1 << 3); /* USSUSP */ + tmio_iowrite8(misc, tmio->ccr + CCR_MISC); + + spin_unlock_irqrestore(&tmio->lock, flags); + + ohci_finish_controller_resume(hcd); + + return 0; +} +#else +#define ohci_hcd_tmio_drv_suspend NULL +#define ohci_hcd_tmio_drv_resume NULL +#endif + +static struct platform_driver ohci_hcd_tmio_driver = { + .probe = ohci_hcd_tmio_drv_probe, + .remove = __devexit_p(ohci_hcd_tmio_drv_remove), + .shutdown = usb_hcd_platform_shutdown, + .suspend = ohci_hcd_tmio_drv_suspend, + .resume = ohci_hcd_tmio_drv_resume, + .driver = { + .name = "tmio-ohci", + .owner = THIS_MODULE, + }, +}; diff --git a/drivers/usb/host/ohci.h b/drivers/usb/host/ohci.h index faf622eafce7..222011f6172c 100644 --- a/drivers/usb/host/ohci.h +++ b/drivers/usb/host/ohci.h @@ -540,15 +540,7 @@ static inline struct usb_hcd *ohci_to_hcd (const struct ohci_hcd *ohci) * Big-endian read/write functions are arch-specific. * Other arches can be added if/when they're needed. * - * REVISIT: arch/powerpc now has readl/writel_be, so the - * definition below can die once the STB04xxx support is - * finally ported over. */ -#if defined(CONFIG_PPC) && !defined(CONFIG_PPC_MERGE) -#define readl_be(addr) in_be32((__force unsigned *)addr) -#define writel_be(val, addr) out_be32((__force unsigned *)addr, val) -#endif - static inline unsigned int _ohci_readl (const struct ohci_hcd *ohci, __hc32 __iomem * regs) { diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c index ea7126f99cab..c18d8790c410 100644 --- a/drivers/usb/host/r8a66597-hcd.c +++ b/drivers/usb/host/r8a66597-hcd.c @@ -66,7 +66,7 @@ static unsigned short endian; module_param(endian, ushort, 0644); MODULE_PARM_DESC(endian, "data endian: big=256, little=0 (default=0)"); -static unsigned short irq_sense = INTL; +static unsigned short irq_sense = 0xff; module_param(irq_sense, ushort, 0644); MODULE_PARM_DESC(irq_sense, "IRQ sense: low level=32, falling edge=0 " "(default=32)"); @@ -118,7 +118,7 @@ static int r8a66597_clock_enable(struct r8a66597 *r8a66597) r8a66597_write(r8a66597, SCKE, SYSCFG0); tmp = r8a66597_read(r8a66597, SYSCFG0); if (i++ > 1000) { - err("register access fail."); + printk(KERN_ERR "r8a66597: register access fail.\n"); return -ENXIO; } } while ((tmp & SCKE) != SCKE); @@ -128,7 +128,7 @@ static int r8a66597_clock_enable(struct r8a66597 *r8a66597) r8a66597_write(r8a66597, USBE, SYSCFG0); tmp = r8a66597_read(r8a66597, SYSCFG0); if (i++ > 1000) { - err("register access fail."); + printk(KERN_ERR "r8a66597: register access fail.\n"); return -ENXIO; } } while ((tmp & USBE) != USBE); @@ -141,7 +141,7 @@ static int r8a66597_clock_enable(struct r8a66597 *r8a66597) msleep(1); tmp = r8a66597_read(r8a66597, SYSCFG0); if (i++ > 500) { - err("register access fail."); + printk(KERN_ERR "r8a66597: register access fail.\n"); return -ENXIO; } } while ((tmp & SCKE) != SCKE); @@ -265,7 +265,7 @@ static void get_port_number(char *devpath, u16 *root_port, u16 *hub_port) if (root_port) { *root_port = (devpath[0] & 0x0F) - 1; if (*root_port >= R8A66597_MAX_ROOT_HUB) - err("illegal root port number"); + printk(KERN_ERR "r8a66597: Illegal root port number.\n"); } if (hub_port) *hub_port = devpath[2] & 0x0F; @@ -286,7 +286,7 @@ static u16 get_r8a66597_usb_speed(enum usb_device_speed speed) usbspd = HSMODE; break; default: - err("unknown speed"); + printk(KERN_ERR "r8a66597: unknown speed\n"); break; } @@ -385,7 +385,7 @@ static u8 alloc_usb_address(struct r8a66597 *r8a66597, struct urb *urb) struct r8a66597_device *dev; if (is_hub_limit(urb->dev->devpath)) { - err("Externel hub limit reached."); + dev_err(&urb->dev->dev, "External hub limit reached.\n"); return 0; } @@ -406,8 +406,9 @@ static u8 alloc_usb_address(struct r8a66597 *r8a66597, struct urb *urb) return addr; } - err("cannot communicate with a USB device more than 10.(%x)", - r8a66597->address_map); + dev_err(&urb->dev->dev, + "cannot communicate with a USB device more than 10.(%x)\n", + r8a66597->address_map); return 0; } @@ -447,7 +448,8 @@ static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg, do { tmp = r8a66597_read(r8a66597, reg); if (i++ > 1000000) { - err("register%lx, loop %x is timeout", reg, loop); + printk(KERN_ERR "r8a66597: register%lx, loop %x " + "is timeout\n", reg, loop); break; } ndelay(1); @@ -675,7 +677,7 @@ static u16 get_empty_pipenum(struct r8a66597 *r8a66597, array[i++] = 1; break; default: - err("Illegal type"); + printk(KERN_ERR "r8a66597: Illegal type\n"); return 0; } @@ -705,7 +707,7 @@ static u16 get_r8a66597_type(__u8 type) r8a66597_type = R8A66597_ISO; break; default: - err("Illegal type"); + printk(KERN_ERR "r8a66597: Illegal type\n"); r8a66597_type = 0x0000; break; } @@ -724,7 +726,7 @@ static u16 get_bufnum(u16 pipenum) else if (check_interrupt(pipenum)) bufnum = 4 + (pipenum - 6); else - err("Illegal pipenum (%d)", pipenum); + printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum); return bufnum; } @@ -740,7 +742,7 @@ static u16 get_buf_bsize(u16 pipenum) else if (check_interrupt(pipenum)) buf_bsize = 0; else - err("Illegal pipenum (%d)", pipenum); + printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum); return buf_bsize; } @@ -760,10 +762,12 @@ static void enable_r8a66597_pipe_dma(struct r8a66597 *r8a66597, if ((r8a66597->dma_map & (1 << i)) != 0) continue; - info("address %d, EndpointAddress 0x%02x use DMA FIFO", - usb_pipedevice(urb->pipe), - info->dir_in ? USB_ENDPOINT_DIR_MASK + info->epnum - : info->epnum); + dev_info(&dev->udev->dev, + "address %d, EndpointAddress 0x%02x use " + "DMA FIFO\n", usb_pipedevice(urb->pipe), + info->dir_in ? + USB_ENDPOINT_DIR_MASK + info->epnum + : info->epnum); r8a66597->dma_map |= 1 << i; dev->dma_map |= 1 << i; @@ -1187,7 +1191,7 @@ static int start_transfer(struct r8a66597 *r8a66597, struct r8a66597_td *td) prepare_status_packet(r8a66597, td); break; default: - err("invalid type."); + printk(KERN_ERR "r8a66597: invalid type.\n"); break; } @@ -1295,7 +1299,7 @@ static void packet_read(struct r8a66597 *r8a66597, u16 pipenum) if (unlikely((tmp & FRDY) == 0)) { pipe_stop(r8a66597, td->pipe); pipe_irq_disable(r8a66597, pipenum); - err("in fifo not ready (%d)", pipenum); + printk(KERN_ERR "r8a66597: in fifo not ready (%d)\n", pipenum); finish_request(r8a66597, td, pipenum, td->urb, -EPIPE); return; } @@ -1370,7 +1374,7 @@ static void packet_write(struct r8a66597 *r8a66597, u16 pipenum) if (unlikely((tmp & FRDY) == 0)) { pipe_stop(r8a66597, td->pipe); pipe_irq_disable(r8a66597, pipenum); - err("out write fifo not ready. (%d)", pipenum); + printk(KERN_ERR "r8a66597: out fifo not ready (%d)\n", pipenum); finish_request(r8a66597, td, pipenum, urb, -EPIPE); return; } @@ -2005,7 +2009,7 @@ static struct r8a66597_device *get_r8a66597_device(struct r8a66597 *r8a66597, return dev; } - err("get_r8a66597_device fail.(%d)\n", addr); + printk(KERN_ERR "r8a66597: get_r8a66597_device fail.(%d)\n", addr); return NULL; } @@ -2263,7 +2267,7 @@ static int __init_or_module r8a66597_remove(struct platform_device *pdev) #define resource_len(r) (((r)->end - (r)->start) + 1) static int __init r8a66597_probe(struct platform_device *pdev) { - struct resource *res = NULL; + struct resource *res = NULL, *ires; int irq = -1; void __iomem *reg = NULL; struct usb_hcd *hcd = NULL; @@ -2274,7 +2278,7 @@ static int __init r8a66597_probe(struct platform_device *pdev) if (pdev->dev.dma_mask) { ret = -EINVAL; - err("dma not support"); + dev_err(&pdev->dev, "dma not supported\n"); goto clean_up; } @@ -2282,21 +2286,25 @@ static int __init r8a66597_probe(struct platform_device *pdev) (char *)hcd_name); if (!res) { ret = -ENODEV; - err("platform_get_resource_byname error."); + dev_err(&pdev->dev, "platform_get_resource_byname error.\n"); goto clean_up; } - irq = platform_get_irq(pdev, 0); - if (irq < 0) { + ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!ires) { ret = -ENODEV; - err("platform_get_irq error."); + dev_err(&pdev->dev, + "platform_get_resource IORESOURCE_IRQ error.\n"); goto clean_up; } + irq = ires->start; + irq_trigger = ires->flags & IRQF_TRIGGER_MASK; + reg = ioremap(res->start, resource_len(res)); if (reg == NULL) { ret = -ENOMEM; - err("ioremap error."); + dev_err(&pdev->dev, "ioremap error.\n"); goto clean_up; } @@ -2304,7 +2312,7 @@ static int __init r8a66597_probe(struct platform_device *pdev) hcd = usb_create_hcd(&r8a66597_hc_driver, &pdev->dev, (char *)hcd_name); if (!hcd) { ret = -ENOMEM; - err("Failed to create hcd"); + dev_err(&pdev->dev, "Failed to create hcd\n"); goto clean_up; } r8a66597 = hcd_to_r8a66597(hcd); @@ -2329,13 +2337,33 @@ static int __init r8a66597_probe(struct platform_device *pdev) INIT_LIST_HEAD(&r8a66597->child_device); hcd->rsrc_start = res->start; - if (irq_sense == INTL) - irq_trigger = IRQF_TRIGGER_LOW; - else - irq_trigger = IRQF_TRIGGER_FALLING; + + /* irq_sense setting on cmdline takes precedence over resource + * settings, so the introduction of irqflags in IRQ resourse + * won't disturb existing setups */ + switch (irq_sense) { + case INTL: + irq_trigger = IRQF_TRIGGER_LOW; + break; + case 0: + irq_trigger = IRQF_TRIGGER_FALLING; + break; + case 0xff: + if (irq_trigger) + irq_sense = (irq_trigger & IRQF_TRIGGER_LOW) ? + INTL : 0; + else { + irq_sense = INTL; + irq_trigger = IRQF_TRIGGER_LOW; + } + break; + default: + dev_err(&pdev->dev, "Unknown irq_sense value.\n"); + } + ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | irq_trigger); if (ret != 0) { - err("Failed to add hcd"); + dev_err(&pdev->dev, "Failed to add hcd\n"); goto clean_up; } @@ -2364,7 +2392,8 @@ static int __init r8a66597_init(void) if (usb_disabled()) return -ENODEV; - info("driver %s, %s", hcd_name, DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": driver %s, %s\n", hcd_name, + DRIVER_VERSION); return platform_driver_register(&r8a66597_driver); } module_init(r8a66597_init); diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c index 8a74bbb57d08..e106e9d48d4a 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c @@ -1620,22 +1620,26 @@ sl811h_probe(struct platform_device *dev) { struct usb_hcd *hcd; struct sl811 *sl811; - struct resource *addr, *data; + struct resource *addr, *data, *ires; int irq; void __iomem *addr_reg; void __iomem *data_reg; int retval; u8 tmp, ioaddr = 0; + unsigned long irqflags; /* basic sanity checks first. board-specific init logic should * have initialized these three resources and probably board * specific platform_data. we don't probe for IRQs, and do only * minimal sanity checking. */ - irq = platform_get_irq(dev, 0); - if (dev->num_resources < 3 || irq < 0) + ires = platform_get_resource(dev, IORESOURCE_IRQ, 0); + if (dev->num_resources < 3 || !ires) return -ENODEV; + irq = ires->start; + irqflags = ires->flags & IRQF_TRIGGER_MASK; + /* refuse to confuse usbcore */ if (dev->dev.dma_mask) { DBG("no we won't dma\n"); @@ -1717,8 +1721,11 @@ sl811h_probe(struct platform_device *dev) * triggers (e.g. most ARM CPUs). Initial driver stress testing * was on a system with single edge triggering, so most sorts of * triggering arrangement should work. + * + * Use resource IRQ flags if set by platform device setup. */ - retval = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED); + irqflags |= IRQF_SHARED; + retval = usb_add_hcd(hcd, irq, IRQF_DISABLED | irqflags); if (retval != 0) goto err6; diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c index 3a7bfe7a8874..cf5e4cf7ea42 100644 --- a/drivers/usb/host/uhci-hcd.c +++ b/drivers/usb/host/uhci-hcd.c @@ -53,7 +53,6 @@ /* * Version Information */ -#define DRIVER_VERSION "v3.0" #define DRIVER_AUTHOR "Linus 'Frodo Rabbit' Torvalds, Johannes Erdfelt, \ Randy Dunlap, Georg Acher, Deti Fliegl, Thomas Sailer, Roman Weissgaerber, \ Alan Stern" @@ -951,12 +950,13 @@ static int __init uhci_hcd_init(void) { int retval = -ENOMEM; - printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION "%s\n", - ignore_oc ? ", overcurrent ignored" : ""); - if (usb_disabled()) return -ENODEV; + printk(KERN_INFO "uhci_hcd: " DRIVER_DESC "%s\n", + ignore_oc ? ", overcurrent ignored" : ""); + set_bit(USB_UHCI_LOADED, &usb_hcds_loaded); + if (DEBUG_CONFIGURED) { errbuf = kmalloc(ERRBUF_LEN, GFP_KERNEL); if (!errbuf) @@ -988,6 +988,7 @@ debug_failed: errbuf_failed: + clear_bit(USB_UHCI_LOADED, &usb_hcds_loaded); return retval; } @@ -997,6 +998,7 @@ static void __exit uhci_hcd_cleanup(void) kmem_cache_destroy(uhci_up_cachep); debugfs_remove(uhci_debugfs_root); kfree(errbuf); + clear_bit(USB_UHCI_LOADED, &usb_hcds_loaded); } module_init(uhci_hcd_init); diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c index 1f0c2cf26e5d..5631d89c8730 100644 --- a/drivers/usb/host/uhci-q.c +++ b/drivers/usb/host/uhci-q.c @@ -1065,13 +1065,18 @@ static int uhci_submit_interrupt(struct uhci_hcd *uhci, struct urb *urb, } if (exponent < 0) return -EINVAL; - qh->period = 1 << exponent; - qh->skel = SKEL_INDEX(exponent); - /* For now, interrupt phase is fixed by the layout - * of the QH lists. */ - qh->phase = (qh->period / 2) & (MAX_PHASE - 1); - ret = uhci_check_bandwidth(uhci, qh); + /* If the slot is full, try a lower period */ + do { + qh->period = 1 << exponent; + qh->skel = SKEL_INDEX(exponent); + + /* For now, interrupt phase is fixed by the layout + * of the QH lists. + */ + qh->phase = (qh->period / 2) & (MAX_PHASE - 1); + ret = uhci_check_bandwidth(uhci, qh); + } while (ret != 0 && --exponent >= 0); if (ret) return ret; } else if (qh->period > urb->interval) diff --git a/drivers/usb/host/whci/Kbuild b/drivers/usb/host/whci/Kbuild new file mode 100644 index 000000000000..26a3871ea0f9 --- /dev/null +++ b/drivers/usb/host/whci/Kbuild @@ -0,0 +1,11 @@ +obj-$(CONFIG_USB_WHCI_HCD) += whci-hcd.o + +whci-hcd-y := \ + asl.o \ + hcd.o \ + hw.o \ + init.o \ + int.o \ + pzl.o \ + qset.o \ + wusb.o diff --git a/drivers/usb/host/whci/asl.c b/drivers/usb/host/whci/asl.c new file mode 100644 index 000000000000..4d7078e50572 --- /dev/null +++ b/drivers/usb/host/whci/asl.c @@ -0,0 +1,367 @@ +/* + * Wireless Host Controller (WHC) asynchronous schedule management. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/kernel.h> +#include <linux/dma-mapping.h> +#include <linux/uwb/umc.h> +#include <linux/usb.h> +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +#if D_LOCAL >= 4 +static void dump_asl(struct whc *whc, const char *tag) +{ + struct device *dev = &whc->umc->dev; + struct whc_qset *qset; + + d_printf(4, dev, "ASL %s\n", tag); + + list_for_each_entry(qset, &whc->async_list, list_node) { + dump_qset(qset, dev); + } +} +#else +static inline void dump_asl(struct whc *whc, const char *tag) +{ +} +#endif + + +static void qset_get_next_prev(struct whc *whc, struct whc_qset *qset, + struct whc_qset **next, struct whc_qset **prev) +{ + struct list_head *n, *p; + + BUG_ON(list_empty(&whc->async_list)); + + n = qset->list_node.next; + if (n == &whc->async_list) + n = n->next; + p = qset->list_node.prev; + if (p == &whc->async_list) + p = p->prev; + + *next = container_of(n, struct whc_qset, list_node); + *prev = container_of(p, struct whc_qset, list_node); + +} + +static void asl_qset_insert_begin(struct whc *whc, struct whc_qset *qset) +{ + list_move(&qset->list_node, &whc->async_list); + qset->in_sw_list = true; +} + +static void asl_qset_insert(struct whc *whc, struct whc_qset *qset) +{ + struct whc_qset *next, *prev; + + qset_clear(whc, qset); + + /* Link into ASL. */ + qset_get_next_prev(whc, qset, &next, &prev); + whc_qset_set_link_ptr(&qset->qh.link, next->qset_dma); + whc_qset_set_link_ptr(&prev->qh.link, qset->qset_dma); + qset->in_hw_list = true; +} + +static void asl_qset_remove(struct whc *whc, struct whc_qset *qset) +{ + struct whc_qset *prev, *next; + + qset_get_next_prev(whc, qset, &next, &prev); + + list_move(&qset->list_node, &whc->async_removed_list); + qset->in_sw_list = false; + + /* + * No more qsets in the ASL? The caller must stop the ASL as + * it's no longer valid. + */ + if (list_empty(&whc->async_list)) + return; + + /* Remove from ASL. */ + whc_qset_set_link_ptr(&prev->qh.link, next->qset_dma); + qset->in_hw_list = false; +} + +/** + * process_qset - process any recently inactivated or halted qTDs in a + * qset. + * + * After inactive qTDs are removed, new qTDs can be added if the + * urb queue still contains URBs. + * + * Returns any additional WUSBCMD bits for the ASL sync command (i.e., + * WUSBCMD_ASYNC_QSET_RM if a halted qset was removed). + */ +static uint32_t process_qset(struct whc *whc, struct whc_qset *qset) +{ + enum whc_update update = 0; + uint32_t status = 0; + + while (qset->ntds) { + struct whc_qtd *td; + int t; + + t = qset->td_start; + td = &qset->qtd[qset->td_start]; + status = le32_to_cpu(td->status); + + /* + * Nothing to do with a still active qTD. + */ + if (status & QTD_STS_ACTIVE) + break; + + if (status & QTD_STS_HALTED) { + /* Ug, an error. */ + process_halted_qtd(whc, qset, td); + goto done; + } + + /* Mmm, a completed qTD. */ + process_inactive_qtd(whc, qset, td); + } + + update |= qset_add_qtds(whc, qset); + +done: + /* + * Remove this qset from the ASL if requested, but only if has + * no qTDs. + */ + if (qset->remove && qset->ntds == 0) { + asl_qset_remove(whc, qset); + update |= WHC_UPDATE_REMOVED; + } + return update; +} + +void asl_start(struct whc *whc) +{ + struct whc_qset *qset; + + qset = list_first_entry(&whc->async_list, struct whc_qset, list_node); + + le_writeq(qset->qset_dma | QH_LINK_NTDS(8), whc->base + WUSBASYNCLISTADDR); + + whc_write_wusbcmd(whc, WUSBCMD_ASYNC_EN, WUSBCMD_ASYNC_EN); + whci_wait_for(&whc->umc->dev, whc->base + WUSBSTS, + WUSBSTS_ASYNC_SCHED, WUSBSTS_ASYNC_SCHED, + 1000, "start ASL"); +} + +void asl_stop(struct whc *whc) +{ + whc_write_wusbcmd(whc, WUSBCMD_ASYNC_EN, 0); + whci_wait_for(&whc->umc->dev, whc->base + WUSBSTS, + WUSBSTS_ASYNC_SCHED, 0, + 1000, "stop ASL"); +} + +void asl_update(struct whc *whc, uint32_t wusbcmd) +{ + whc_write_wusbcmd(whc, wusbcmd, wusbcmd); + wait_event(whc->async_list_wq, + (le_readl(whc->base + WUSBCMD) & WUSBCMD_ASYNC_UPDATED) == 0); +} + +/** + * scan_async_work - scan the ASL for qsets to process. + * + * Process each qset in the ASL in turn and then signal the WHC that + * the ASL has been updated. + * + * Then start, stop or update the asynchronous schedule as required. + */ +void scan_async_work(struct work_struct *work) +{ + struct whc *whc = container_of(work, struct whc, async_work); + struct whc_qset *qset, *t; + enum whc_update update = 0; + + spin_lock_irq(&whc->lock); + + dump_asl(whc, "before processing"); + + /* + * Transerve the software list backwards so new qsets can be + * safely inserted into the ASL without making it non-circular. + */ + list_for_each_entry_safe_reverse(qset, t, &whc->async_list, list_node) { + if (!qset->in_hw_list) { + asl_qset_insert(whc, qset); + update |= WHC_UPDATE_ADDED; + } + + update |= process_qset(whc, qset); + } + + dump_asl(whc, "after processing"); + + spin_unlock_irq(&whc->lock); + + if (update) { + uint32_t wusbcmd = WUSBCMD_ASYNC_UPDATED | WUSBCMD_ASYNC_SYNCED_DB; + if (update & WHC_UPDATE_REMOVED) + wusbcmd |= WUSBCMD_ASYNC_QSET_RM; + asl_update(whc, wusbcmd); + } + + /* + * Now that the ASL is updated, complete the removal of any + * removed qsets. + */ + spin_lock(&whc->lock); + + list_for_each_entry_safe(qset, t, &whc->async_removed_list, list_node) { + qset_remove_complete(whc, qset); + } + + spin_unlock(&whc->lock); +} + +/** + * asl_urb_enqueue - queue an URB onto the asynchronous list (ASL). + * @whc: the WHCI host controller + * @urb: the URB to enqueue + * @mem_flags: flags for any memory allocations + * + * The qset for the endpoint is obtained and the urb queued on to it. + * + * Work is scheduled to update the hardware's view of the ASL. + */ +int asl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags) +{ + struct whc_qset *qset; + int err; + unsigned long flags; + + spin_lock_irqsave(&whc->lock, flags); + + qset = get_qset(whc, urb, GFP_ATOMIC); + if (qset == NULL) + err = -ENOMEM; + else + err = qset_add_urb(whc, qset, urb, GFP_ATOMIC); + if (!err) { + usb_hcd_link_urb_to_ep(&whc->wusbhc.usb_hcd, urb); + if (!qset->in_sw_list) + asl_qset_insert_begin(whc, qset); + } + + spin_unlock_irqrestore(&whc->lock, flags); + + if (!err) + queue_work(whc->workqueue, &whc->async_work); + + return 0; +} + +/** + * asl_urb_dequeue - remove an URB (qset) from the async list. + * @whc: the WHCI host controller + * @urb: the URB to dequeue + * @status: the current status of the URB + * + * URBs that do yet have qTDs can simply be removed from the software + * queue, otherwise the qset must be removed from the ASL so the qTDs + * can be removed. + */ +int asl_urb_dequeue(struct whc *whc, struct urb *urb, int status) +{ + struct whc_urb *wurb = urb->hcpriv; + struct whc_qset *qset = wurb->qset; + struct whc_std *std, *t; + int ret; + unsigned long flags; + + spin_lock_irqsave(&whc->lock, flags); + + ret = usb_hcd_check_unlink_urb(&whc->wusbhc.usb_hcd, urb, status); + if (ret < 0) + goto out; + + list_for_each_entry_safe(std, t, &qset->stds, list_node) { + if (std->urb == urb) + qset_free_std(whc, std); + else + std->qtd = NULL; /* so this std is re-added when the qset is */ + } + + asl_qset_remove(whc, qset); + wurb->status = status; + wurb->is_async = true; + queue_work(whc->workqueue, &wurb->dequeue_work); + +out: + spin_unlock_irqrestore(&whc->lock, flags); + + return ret; +} + +/** + * asl_qset_delete - delete a qset from the ASL + */ +void asl_qset_delete(struct whc *whc, struct whc_qset *qset) +{ + qset->remove = 1; + queue_work(whc->workqueue, &whc->async_work); + qset_delete(whc, qset); +} + +/** + * asl_init - initialize the asynchronous schedule list + * + * A dummy qset with no qTDs is added to the ASL to simplify removing + * qsets (no need to stop the ASL when the last qset is removed). + */ +int asl_init(struct whc *whc) +{ + struct whc_qset *qset; + + qset = qset_alloc(whc, GFP_KERNEL); + if (qset == NULL) + return -ENOMEM; + + asl_qset_insert_begin(whc, qset); + asl_qset_insert(whc, qset); + + return 0; +} + +/** + * asl_clean_up - free ASL resources + * + * The ASL is stopped and empty except for the dummy qset. + */ +void asl_clean_up(struct whc *whc) +{ + struct whc_qset *qset; + + if (!list_empty(&whc->async_list)) { + qset = list_first_entry(&whc->async_list, struct whc_qset, list_node); + list_del(&qset->list_node); + qset_free(whc, qset); + } +} diff --git a/drivers/usb/host/whci/hcd.c b/drivers/usb/host/whci/hcd.c new file mode 100644 index 000000000000..ef3ad4dca945 --- /dev/null +++ b/drivers/usb/host/whci/hcd.c @@ -0,0 +1,339 @@ +/* + * Wireless Host Controller (WHC) driver. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/version.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/uwb/umc.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +/* + * One time initialization. + * + * Nothing to do here. + */ +static int whc_reset(struct usb_hcd *usb_hcd) +{ + return 0; +} + +/* + * Start the wireless host controller. + * + * Start device notification. + * + * Put hc into run state, set DNTS parameters. + */ +static int whc_start(struct usb_hcd *usb_hcd) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct whc *whc = wusbhc_to_whc(wusbhc); + u8 bcid; + int ret; + + mutex_lock(&wusbhc->mutex); + + le_writel(WUSBINTR_GEN_CMD_DONE + | WUSBINTR_HOST_ERR + | WUSBINTR_ASYNC_SCHED_SYNCED + | WUSBINTR_DNTS_INT + | WUSBINTR_ERR_INT + | WUSBINTR_INT, + whc->base + WUSBINTR); + + /* set cluster ID */ + bcid = wusb_cluster_id_get(); + ret = whc_set_cluster_id(whc, bcid); + if (ret < 0) + goto out; + wusbhc->cluster_id = bcid; + + /* start HC */ + whc_write_wusbcmd(whc, WUSBCMD_RUN, WUSBCMD_RUN); + + usb_hcd->uses_new_polling = 1; + usb_hcd->poll_rh = 1; + usb_hcd->state = HC_STATE_RUNNING; + +out: + mutex_unlock(&wusbhc->mutex); + return ret; +} + + +/* + * Stop the wireless host controller. + * + * Stop device notification. + * + * Wait for pending transfer to stop? Put hc into stop state? + */ +static void whc_stop(struct usb_hcd *usb_hcd) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct whc *whc = wusbhc_to_whc(wusbhc); + + mutex_lock(&wusbhc->mutex); + + wusbhc_stop(wusbhc); + + /* stop HC */ + le_writel(0, whc->base + WUSBINTR); + whc_write_wusbcmd(whc, WUSBCMD_RUN, 0); + whci_wait_for(&whc->umc->dev, whc->base + WUSBSTS, + WUSBSTS_HCHALTED, WUSBSTS_HCHALTED, + 100, "HC to halt"); + + wusb_cluster_id_put(wusbhc->cluster_id); + + mutex_unlock(&wusbhc->mutex); +} + +static int whc_get_frame_number(struct usb_hcd *usb_hcd) +{ + /* Frame numbers are not applicable to WUSB. */ + return -ENOSYS; +} + + +/* + * Queue an URB to the ASL or PZL + */ +static int whc_urb_enqueue(struct usb_hcd *usb_hcd, struct urb *urb, + gfp_t mem_flags) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct whc *whc = wusbhc_to_whc(wusbhc); + int ret; + + switch (usb_pipetype(urb->pipe)) { + case PIPE_INTERRUPT: + ret = pzl_urb_enqueue(whc, urb, mem_flags); + break; + case PIPE_ISOCHRONOUS: + dev_err(&whc->umc->dev, "isochronous transfers unsupported\n"); + ret = -ENOTSUPP; + break; + case PIPE_CONTROL: + case PIPE_BULK: + default: + ret = asl_urb_enqueue(whc, urb, mem_flags); + break; + }; + + return ret; +} + +/* + * Remove a queued URB from the ASL or PZL. + */ +static int whc_urb_dequeue(struct usb_hcd *usb_hcd, struct urb *urb, int status) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct whc *whc = wusbhc_to_whc(wusbhc); + int ret; + + switch (usb_pipetype(urb->pipe)) { + case PIPE_INTERRUPT: + ret = pzl_urb_dequeue(whc, urb, status); + break; + case PIPE_ISOCHRONOUS: + ret = -ENOTSUPP; + break; + case PIPE_CONTROL: + case PIPE_BULK: + default: + ret = asl_urb_dequeue(whc, urb, status); + break; + }; + + return ret; +} + +/* + * Wait for all URBs to the endpoint to be completed, then delete the + * qset. + */ +static void whc_endpoint_disable(struct usb_hcd *usb_hcd, + struct usb_host_endpoint *ep) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct whc *whc = wusbhc_to_whc(wusbhc); + struct whc_qset *qset; + + qset = ep->hcpriv; + if (qset) { + ep->hcpriv = NULL; + if (usb_endpoint_xfer_bulk(&ep->desc) + || usb_endpoint_xfer_control(&ep->desc)) + asl_qset_delete(whc, qset); + else + pzl_qset_delete(whc, qset); + } +} + +static struct hc_driver whc_hc_driver = { + .description = "whci-hcd", + .product_desc = "Wireless host controller", + .hcd_priv_size = sizeof(struct whc) - sizeof(struct usb_hcd), + .irq = whc_int_handler, + .flags = HCD_USB2, + + .reset = whc_reset, + .start = whc_start, + .stop = whc_stop, + .get_frame_number = whc_get_frame_number, + .urb_enqueue = whc_urb_enqueue, + .urb_dequeue = whc_urb_dequeue, + .endpoint_disable = whc_endpoint_disable, + + .hub_status_data = wusbhc_rh_status_data, + .hub_control = wusbhc_rh_control, + .bus_suspend = wusbhc_rh_suspend, + .bus_resume = wusbhc_rh_resume, + .start_port_reset = wusbhc_rh_start_port_reset, +}; + +static int whc_probe(struct umc_dev *umc) +{ + int ret = -ENOMEM; + struct usb_hcd *usb_hcd; + struct wusbhc *wusbhc = NULL; + struct whc *whc = NULL; + struct device *dev = &umc->dev; + + usb_hcd = usb_create_hcd(&whc_hc_driver, dev, "whci"); + if (usb_hcd == NULL) { + dev_err(dev, "unable to create hcd\n"); + goto error; + } + + usb_hcd->wireless = 1; + + wusbhc = usb_hcd_to_wusbhc(usb_hcd); + whc = wusbhc_to_whc(wusbhc); + whc->umc = umc; + + ret = whc_init(whc); + if (ret) + goto error; + + wusbhc->dev = dev; + wusbhc->uwb_rc = uwb_rc_get_by_grandpa(umc->dev.parent); + if (!wusbhc->uwb_rc) { + ret = -ENODEV; + dev_err(dev, "cannot get radio controller\n"); + goto error; + } + + if (whc->n_devices > USB_MAXCHILDREN) { + dev_warn(dev, "USB_MAXCHILDREN too low for WUSB adapter (%u ports)\n", + whc->n_devices); + wusbhc->ports_max = USB_MAXCHILDREN; + } else + wusbhc->ports_max = whc->n_devices; + wusbhc->mmcies_max = whc->n_mmc_ies; + wusbhc->start = whc_wusbhc_start; + wusbhc->stop = whc_wusbhc_stop; + wusbhc->mmcie_add = whc_mmcie_add; + wusbhc->mmcie_rm = whc_mmcie_rm; + wusbhc->dev_info_set = whc_dev_info_set; + wusbhc->bwa_set = whc_bwa_set; + wusbhc->set_num_dnts = whc_set_num_dnts; + wusbhc->set_ptk = whc_set_ptk; + wusbhc->set_gtk = whc_set_gtk; + + ret = wusbhc_create(wusbhc); + if (ret) + goto error_wusbhc_create; + + ret = usb_add_hcd(usb_hcd, whc->umc->irq, IRQF_SHARED); + if (ret) { + dev_err(dev, "cannot add HCD: %d\n", ret); + goto error_usb_add_hcd; + } + + ret = wusbhc_b_create(wusbhc); + if (ret) { + dev_err(dev, "WUSBHC phase B setup failed: %d\n", ret); + goto error_wusbhc_b_create; + } + + return 0; + +error_wusbhc_b_create: + usb_remove_hcd(usb_hcd); +error_usb_add_hcd: + wusbhc_destroy(wusbhc); +error_wusbhc_create: + uwb_rc_put(wusbhc->uwb_rc); +error: + whc_clean_up(whc); + if (usb_hcd) + usb_put_hcd(usb_hcd); + return ret; +} + + +static void whc_remove(struct umc_dev *umc) +{ + struct usb_hcd *usb_hcd = dev_get_drvdata(&umc->dev); + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct whc *whc = wusbhc_to_whc(wusbhc); + + if (usb_hcd) { + wusbhc_b_destroy(wusbhc); + usb_remove_hcd(usb_hcd); + wusbhc_destroy(wusbhc); + uwb_rc_put(wusbhc->uwb_rc); + whc_clean_up(whc); + usb_put_hcd(usb_hcd); + } +} + +static struct umc_driver whci_hc_driver = { + .name = "whci-hcd", + .cap_id = UMC_CAP_ID_WHCI_WUSB_HC, + .probe = whc_probe, + .remove = whc_remove, +}; + +static int __init whci_hc_driver_init(void) +{ + return umc_driver_register(&whci_hc_driver); +} +module_init(whci_hc_driver_init); + +static void __exit whci_hc_driver_exit(void) +{ + umc_driver_unregister(&whci_hc_driver); +} +module_exit(whci_hc_driver_exit); + +/* PCI device ID's that we handle (so it gets loaded) */ +static struct pci_device_id whci_hcd_id_table[] = { + { PCI_DEVICE_CLASS(PCI_CLASS_WIRELESS_WHCI, ~0) }, + { /* empty last entry */ } +}; +MODULE_DEVICE_TABLE(pci, whci_hcd_id_table); + +MODULE_DESCRIPTION("WHCI Wireless USB host controller driver"); +MODULE_AUTHOR("Cambridge Silicon Radio Ltd."); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/host/whci/hw.c b/drivers/usb/host/whci/hw.c new file mode 100644 index 000000000000..ac86e59c1225 --- /dev/null +++ b/drivers/usb/host/whci/hw.c @@ -0,0 +1,87 @@ +/* + * Wireless Host Controller (WHC) hardware access helpers. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/kernel.h> +#include <linux/dma-mapping.h> +#include <linux/uwb/umc.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +void whc_write_wusbcmd(struct whc *whc, u32 mask, u32 val) +{ + unsigned long flags; + u32 cmd; + + spin_lock_irqsave(&whc->lock, flags); + + cmd = le_readl(whc->base + WUSBCMD); + cmd = (cmd & ~mask) | val; + le_writel(cmd, whc->base + WUSBCMD); + + spin_unlock_irqrestore(&whc->lock, flags); +} + +/** + * whc_do_gencmd - start a generic command via the WUSBGENCMDSTS register + * @whc: the WHCI HC + * @cmd: command to start. + * @params: parameters for the command (the WUSBGENCMDPARAMS register value). + * @addr: pointer to any data for the command (may be NULL). + * @len: length of the data (if any). + */ +int whc_do_gencmd(struct whc *whc, u32 cmd, u32 params, void *addr, size_t len) +{ + unsigned long flags; + dma_addr_t dma_addr; + int t; + + mutex_lock(&whc->mutex); + + /* Wait for previous command to complete. */ + t = wait_event_timeout(whc->cmd_wq, + (le_readl(whc->base + WUSBGENCMDSTS) & WUSBGENCMDSTS_ACTIVE) == 0, + WHC_GENCMD_TIMEOUT_MS); + if (t == 0) { + dev_err(&whc->umc->dev, "generic command timeout (%04x/%04x)\n", + le_readl(whc->base + WUSBGENCMDSTS), + le_readl(whc->base + WUSBGENCMDPARAMS)); + return -ETIMEDOUT; + } + + if (addr) { + memcpy(whc->gen_cmd_buf, addr, len); + dma_addr = whc->gen_cmd_buf_dma; + } else + dma_addr = 0; + + /* Poke registers to start cmd. */ + spin_lock_irqsave(&whc->lock, flags); + + le_writel(params, whc->base + WUSBGENCMDPARAMS); + le_writeq(dma_addr, whc->base + WUSBGENADDR); + + le_writel(WUSBGENCMDSTS_ACTIVE | WUSBGENCMDSTS_IOC | cmd, + whc->base + WUSBGENCMDSTS); + + spin_unlock_irqrestore(&whc->lock, flags); + + mutex_unlock(&whc->mutex); + + return 0; +} diff --git a/drivers/usb/host/whci/init.c b/drivers/usb/host/whci/init.c new file mode 100644 index 000000000000..34a783cb0133 --- /dev/null +++ b/drivers/usb/host/whci/init.c @@ -0,0 +1,188 @@ +/* + * Wireless Host Controller (WHC) initialization. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/kernel.h> +#include <linux/dma-mapping.h> +#include <linux/uwb/umc.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +/* + * Reset the host controller. + */ +static void whc_hw_reset(struct whc *whc) +{ + le_writel(WUSBCMD_WHCRESET, whc->base + WUSBCMD); + whci_wait_for(&whc->umc->dev, whc->base + WUSBCMD, WUSBCMD_WHCRESET, 0, + 100, "reset"); +} + +static void whc_hw_init_di_buf(struct whc *whc) +{ + int d; + + /* Disable all entries in the Device Information buffer. */ + for (d = 0; d < whc->n_devices; d++) + whc->di_buf[d].addr_sec_info = WHC_DI_DISABLE; + + le_writeq(whc->di_buf_dma, whc->base + WUSBDEVICEINFOADDR); +} + +static void whc_hw_init_dn_buf(struct whc *whc) +{ + /* Clear the Device Notification buffer to ensure the V (valid) + * bits are clear. */ + memset(whc->dn_buf, 0, 4096); + + le_writeq(whc->dn_buf_dma, whc->base + WUSBDNTSBUFADDR); +} + +int whc_init(struct whc *whc) +{ + u32 whcsparams; + int ret, i; + resource_size_t start, len; + + spin_lock_init(&whc->lock); + mutex_init(&whc->mutex); + init_waitqueue_head(&whc->cmd_wq); + init_waitqueue_head(&whc->async_list_wq); + init_waitqueue_head(&whc->periodic_list_wq); + whc->workqueue = create_singlethread_workqueue(dev_name(&whc->umc->dev)); + if (whc->workqueue == NULL) { + ret = -ENOMEM; + goto error; + } + INIT_WORK(&whc->dn_work, whc_dn_work); + + INIT_WORK(&whc->async_work, scan_async_work); + INIT_LIST_HEAD(&whc->async_list); + INIT_LIST_HEAD(&whc->async_removed_list); + + INIT_WORK(&whc->periodic_work, scan_periodic_work); + for (i = 0; i < 5; i++) + INIT_LIST_HEAD(&whc->periodic_list[i]); + INIT_LIST_HEAD(&whc->periodic_removed_list); + + /* Map HC registers. */ + start = whc->umc->resource.start; + len = whc->umc->resource.end - start + 1; + if (!request_mem_region(start, len, "whci-hc")) { + dev_err(&whc->umc->dev, "can't request HC region\n"); + ret = -EBUSY; + goto error; + } + whc->base_phys = start; + whc->base = ioremap(start, len); + if (!whc->base) { + dev_err(&whc->umc->dev, "ioremap\n"); + ret = -ENOMEM; + goto error; + } + + whc_hw_reset(whc); + + /* Read maximum number of devices, keys and MMC IEs. */ + whcsparams = le_readl(whc->base + WHCSPARAMS); + whc->n_devices = WHCSPARAMS_TO_N_DEVICES(whcsparams); + whc->n_keys = WHCSPARAMS_TO_N_KEYS(whcsparams); + whc->n_mmc_ies = WHCSPARAMS_TO_N_MMC_IES(whcsparams); + + dev_dbg(&whc->umc->dev, "N_DEVICES = %d, N_KEYS = %d, N_MMC_IES = %d\n", + whc->n_devices, whc->n_keys, whc->n_mmc_ies); + + whc->qset_pool = dma_pool_create("qset", &whc->umc->dev, + sizeof(struct whc_qset), 64, 0); + if (whc->qset_pool == NULL) { + ret = -ENOMEM; + goto error; + } + + ret = asl_init(whc); + if (ret < 0) + goto error; + ret = pzl_init(whc); + if (ret < 0) + goto error; + + /* Allocate and initialize a buffer for generic commands, the + Device Information buffer, and the Device Notification + buffer. */ + + whc->gen_cmd_buf = dma_alloc_coherent(&whc->umc->dev, WHC_GEN_CMD_DATA_LEN, + &whc->gen_cmd_buf_dma, GFP_KERNEL); + if (whc->gen_cmd_buf == NULL) { + ret = -ENOMEM; + goto error; + } + + whc->dn_buf = dma_alloc_coherent(&whc->umc->dev, + sizeof(struct dn_buf_entry) * WHC_N_DN_ENTRIES, + &whc->dn_buf_dma, GFP_KERNEL); + if (!whc->dn_buf) { + ret = -ENOMEM; + goto error; + } + whc_hw_init_dn_buf(whc); + + whc->di_buf = dma_alloc_coherent(&whc->umc->dev, + sizeof(struct di_buf_entry) * whc->n_devices, + &whc->di_buf_dma, GFP_KERNEL); + if (!whc->di_buf) { + ret = -ENOMEM; + goto error; + } + whc_hw_init_di_buf(whc); + + return 0; + +error: + whc_clean_up(whc); + return ret; +} + +void whc_clean_up(struct whc *whc) +{ + resource_size_t len; + + if (whc->di_buf) + dma_free_coherent(&whc->umc->dev, sizeof(struct di_buf_entry) * whc->n_devices, + whc->di_buf, whc->di_buf_dma); + if (whc->dn_buf) + dma_free_coherent(&whc->umc->dev, sizeof(struct dn_buf_entry) * WHC_N_DN_ENTRIES, + whc->dn_buf, whc->dn_buf_dma); + if (whc->gen_cmd_buf) + dma_free_coherent(&whc->umc->dev, WHC_GEN_CMD_DATA_LEN, + whc->gen_cmd_buf, whc->gen_cmd_buf_dma); + + pzl_clean_up(whc); + asl_clean_up(whc); + + if (whc->qset_pool) + dma_pool_destroy(whc->qset_pool); + + len = whc->umc->resource.end - whc->umc->resource.start + 1; + if (whc->base) + iounmap(whc->base); + if (whc->base_phys) + release_mem_region(whc->base_phys, len); + + if (whc->workqueue) + destroy_workqueue(whc->workqueue); +} diff --git a/drivers/usb/host/whci/int.c b/drivers/usb/host/whci/int.c new file mode 100644 index 000000000000..fce01174aa9b --- /dev/null +++ b/drivers/usb/host/whci/int.c @@ -0,0 +1,95 @@ +/* + * Wireless Host Controller (WHC) interrupt handling. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/version.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/uwb/umc.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +static void transfer_done(struct whc *whc) +{ + queue_work(whc->workqueue, &whc->async_work); + queue_work(whc->workqueue, &whc->periodic_work); +} + +irqreturn_t whc_int_handler(struct usb_hcd *hcd) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(hcd); + struct whc *whc = wusbhc_to_whc(wusbhc); + u32 sts; + + sts = le_readl(whc->base + WUSBSTS); + if (!(sts & WUSBSTS_INT_MASK)) + return IRQ_NONE; + le_writel(sts & WUSBSTS_INT_MASK, whc->base + WUSBSTS); + + if (sts & WUSBSTS_GEN_CMD_DONE) + wake_up(&whc->cmd_wq); + + if (sts & WUSBSTS_HOST_ERR) + dev_err(&whc->umc->dev, "FIXME: host system error\n"); + + if (sts & WUSBSTS_ASYNC_SCHED_SYNCED) + wake_up(&whc->async_list_wq); + + if (sts & WUSBSTS_PERIODIC_SCHED_SYNCED) + wake_up(&whc->periodic_list_wq); + + if (sts & WUSBSTS_DNTS_INT) + queue_work(whc->workqueue, &whc->dn_work); + + /* + * A transfer completed (see [WHCI] section 4.7.1.2 for when + * this occurs). + */ + if (sts & (WUSBSTS_INT | WUSBSTS_ERR_INT)) + transfer_done(whc); + + return IRQ_HANDLED; +} + +static int process_dn_buf(struct whc *whc) +{ + struct wusbhc *wusbhc = &whc->wusbhc; + struct dn_buf_entry *dn; + int processed = 0; + + for (dn = whc->dn_buf; dn < whc->dn_buf + WHC_N_DN_ENTRIES; dn++) { + if (dn->status & WHC_DN_STATUS_VALID) { + wusbhc_handle_dn(wusbhc, dn->src_addr, + (struct wusb_dn_hdr *)dn->dn_data, + dn->msg_size); + dn->status &= ~WHC_DN_STATUS_VALID; + processed++; + } + } + return processed; +} + +void whc_dn_work(struct work_struct *work) +{ + struct whc *whc = container_of(work, struct whc, dn_work); + int processed; + + do { + processed = process_dn_buf(whc); + } while (processed); +} diff --git a/drivers/usb/host/whci/pzl.c b/drivers/usb/host/whci/pzl.c new file mode 100644 index 000000000000..8d62df0c330b --- /dev/null +++ b/drivers/usb/host/whci/pzl.c @@ -0,0 +1,398 @@ +/* + * Wireless Host Controller (WHC) periodic schedule management. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/kernel.h> +#include <linux/dma-mapping.h> +#include <linux/uwb/umc.h> +#include <linux/usb.h> +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +#if D_LOCAL >= 4 +static void dump_pzl(struct whc *whc, const char *tag) +{ + struct device *dev = &whc->umc->dev; + struct whc_qset *qset; + int period = 0; + + d_printf(4, dev, "PZL %s\n", tag); + + for (period = 0; period < 5; period++) { + d_printf(4, dev, "Period %d\n", period); + list_for_each_entry(qset, &whc->periodic_list[period], list_node) { + dump_qset(qset, dev); + } + } +} +#else +static inline void dump_pzl(struct whc *whc, const char *tag) +{ +} +#endif + +static void update_pzl_pointers(struct whc *whc, int period, u64 addr) +{ + switch (period) { + case 0: + whc_qset_set_link_ptr(&whc->pz_list[0], addr); + whc_qset_set_link_ptr(&whc->pz_list[2], addr); + whc_qset_set_link_ptr(&whc->pz_list[4], addr); + whc_qset_set_link_ptr(&whc->pz_list[6], addr); + whc_qset_set_link_ptr(&whc->pz_list[8], addr); + whc_qset_set_link_ptr(&whc->pz_list[10], addr); + whc_qset_set_link_ptr(&whc->pz_list[12], addr); + whc_qset_set_link_ptr(&whc->pz_list[14], addr); + break; + case 1: + whc_qset_set_link_ptr(&whc->pz_list[1], addr); + whc_qset_set_link_ptr(&whc->pz_list[5], addr); + whc_qset_set_link_ptr(&whc->pz_list[9], addr); + whc_qset_set_link_ptr(&whc->pz_list[13], addr); + break; + case 2: + whc_qset_set_link_ptr(&whc->pz_list[3], addr); + whc_qset_set_link_ptr(&whc->pz_list[11], addr); + break; + case 3: + whc_qset_set_link_ptr(&whc->pz_list[7], addr); + break; + case 4: + whc_qset_set_link_ptr(&whc->pz_list[15], addr); + break; + } +} + +/* + * Return the 'period' to use for this qset. The minimum interval for + * the endpoint is used so whatever urbs are submitted the device is + * polled often enough. + */ +static int qset_get_period(struct whc *whc, struct whc_qset *qset) +{ + uint8_t bInterval = qset->ep->desc.bInterval; + + if (bInterval < 6) + bInterval = 6; + if (bInterval > 10) + bInterval = 10; + return bInterval - 6; +} + +static void qset_insert_in_sw_list(struct whc *whc, struct whc_qset *qset) +{ + int period; + + period = qset_get_period(whc, qset); + + qset_clear(whc, qset); + list_move(&qset->list_node, &whc->periodic_list[period]); + qset->in_sw_list = true; +} + +static void pzl_qset_remove(struct whc *whc, struct whc_qset *qset) +{ + list_move(&qset->list_node, &whc->periodic_removed_list); + qset->in_hw_list = false; + qset->in_sw_list = false; +} + +/** + * pzl_process_qset - process any recently inactivated or halted qTDs + * in a qset. + * + * After inactive qTDs are removed, new qTDs can be added if the + * urb queue still contains URBs. + * + * Returns the schedule updates required. + */ +static enum whc_update pzl_process_qset(struct whc *whc, struct whc_qset *qset) +{ + enum whc_update update = 0; + uint32_t status = 0; + + while (qset->ntds) { + struct whc_qtd *td; + int t; + + t = qset->td_start; + td = &qset->qtd[qset->td_start]; + status = le32_to_cpu(td->status); + + /* + * Nothing to do with a still active qTD. + */ + if (status & QTD_STS_ACTIVE) + break; + + if (status & QTD_STS_HALTED) { + /* Ug, an error. */ + process_halted_qtd(whc, qset, td); + goto done; + } + + /* Mmm, a completed qTD. */ + process_inactive_qtd(whc, qset, td); + } + + update |= qset_add_qtds(whc, qset); + +done: + /* + * If there are no qTDs in this qset, remove it from the PZL. + */ + if (qset->remove && qset->ntds == 0) { + pzl_qset_remove(whc, qset); + update |= WHC_UPDATE_REMOVED; + } + + return update; +} + +/** + * pzl_start - start the periodic schedule + * @whc: the WHCI host controller + * + * The PZL must be valid (e.g., all entries in the list should have + * the T bit set). + */ +void pzl_start(struct whc *whc) +{ + le_writeq(whc->pz_list_dma, whc->base + WUSBPERIODICLISTBASE); + + whc_write_wusbcmd(whc, WUSBCMD_PERIODIC_EN, WUSBCMD_PERIODIC_EN); + whci_wait_for(&whc->umc->dev, whc->base + WUSBSTS, + WUSBSTS_PERIODIC_SCHED, WUSBSTS_PERIODIC_SCHED, + 1000, "start PZL"); +} + +/** + * pzl_stop - stop the periodic schedule + * @whc: the WHCI host controller + */ +void pzl_stop(struct whc *whc) +{ + whc_write_wusbcmd(whc, WUSBCMD_PERIODIC_EN, 0); + whci_wait_for(&whc->umc->dev, whc->base + WUSBSTS, + WUSBSTS_PERIODIC_SCHED, 0, + 1000, "stop PZL"); +} + +void pzl_update(struct whc *whc, uint32_t wusbcmd) +{ + whc_write_wusbcmd(whc, wusbcmd, wusbcmd); + wait_event(whc->periodic_list_wq, + (le_readl(whc->base + WUSBCMD) & WUSBCMD_PERIODIC_UPDATED) == 0); +} + +static void update_pzl_hw_view(struct whc *whc) +{ + struct whc_qset *qset, *t; + int period; + u64 tmp_qh = 0; + + for (period = 0; period < 5; period++) { + list_for_each_entry_safe(qset, t, &whc->periodic_list[period], list_node) { + whc_qset_set_link_ptr(&qset->qh.link, tmp_qh); + tmp_qh = qset->qset_dma; + qset->in_hw_list = true; + } + update_pzl_pointers(whc, period, tmp_qh); + } +} + +/** + * scan_periodic_work - scan the PZL for qsets to process. + * + * Process each qset in the PZL in turn and then signal the WHC that + * the PZL has been updated. + * + * Then start, stop or update the periodic schedule as required. + */ +void scan_periodic_work(struct work_struct *work) +{ + struct whc *whc = container_of(work, struct whc, periodic_work); + struct whc_qset *qset, *t; + enum whc_update update = 0; + int period; + + spin_lock_irq(&whc->lock); + + dump_pzl(whc, "before processing"); + + for (period = 4; period >= 0; period--) { + list_for_each_entry_safe(qset, t, &whc->periodic_list[period], list_node) { + if (!qset->in_hw_list) + update |= WHC_UPDATE_ADDED; + update |= pzl_process_qset(whc, qset); + } + } + + if (update & (WHC_UPDATE_ADDED | WHC_UPDATE_REMOVED)) + update_pzl_hw_view(whc); + + dump_pzl(whc, "after processing"); + + spin_unlock_irq(&whc->lock); + + if (update) { + uint32_t wusbcmd = WUSBCMD_PERIODIC_UPDATED | WUSBCMD_PERIODIC_SYNCED_DB; + if (update & WHC_UPDATE_REMOVED) + wusbcmd |= WUSBCMD_PERIODIC_QSET_RM; + pzl_update(whc, wusbcmd); + } + + /* + * Now that the PZL is updated, complete the removal of any + * removed qsets. + */ + spin_lock(&whc->lock); + + list_for_each_entry_safe(qset, t, &whc->periodic_removed_list, list_node) { + qset_remove_complete(whc, qset); + } + + spin_unlock(&whc->lock); +} + +/** + * pzl_urb_enqueue - queue an URB onto the periodic list (PZL) + * @whc: the WHCI host controller + * @urb: the URB to enqueue + * @mem_flags: flags for any memory allocations + * + * The qset for the endpoint is obtained and the urb queued on to it. + * + * Work is scheduled to update the hardware's view of the PZL. + */ +int pzl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags) +{ + struct whc_qset *qset; + int err; + unsigned long flags; + + spin_lock_irqsave(&whc->lock, flags); + + qset = get_qset(whc, urb, GFP_ATOMIC); + if (qset == NULL) + err = -ENOMEM; + else + err = qset_add_urb(whc, qset, urb, GFP_ATOMIC); + if (!err) { + usb_hcd_link_urb_to_ep(&whc->wusbhc.usb_hcd, urb); + if (!qset->in_sw_list) + qset_insert_in_sw_list(whc, qset); + } + + spin_unlock_irqrestore(&whc->lock, flags); + + if (!err) + queue_work(whc->workqueue, &whc->periodic_work); + + return 0; +} + +/** + * pzl_urb_dequeue - remove an URB (qset) from the periodic list + * @whc: the WHCI host controller + * @urb: the URB to dequeue + * @status: the current status of the URB + * + * URBs that do yet have qTDs can simply be removed from the software + * queue, otherwise the qset must be removed so the qTDs can be safely + * removed. + */ +int pzl_urb_dequeue(struct whc *whc, struct urb *urb, int status) +{ + struct whc_urb *wurb = urb->hcpriv; + struct whc_qset *qset = wurb->qset; + struct whc_std *std, *t; + int ret; + unsigned long flags; + + spin_lock_irqsave(&whc->lock, flags); + + ret = usb_hcd_check_unlink_urb(&whc->wusbhc.usb_hcd, urb, status); + if (ret < 0) + goto out; + + list_for_each_entry_safe(std, t, &qset->stds, list_node) { + if (std->urb == urb) + qset_free_std(whc, std); + else + std->qtd = NULL; /* so this std is re-added when the qset is */ + } + + pzl_qset_remove(whc, qset); + wurb->status = status; + wurb->is_async = false; + queue_work(whc->workqueue, &wurb->dequeue_work); + +out: + spin_unlock_irqrestore(&whc->lock, flags); + + return ret; +} + +/** + * pzl_qset_delete - delete a qset from the PZL + */ +void pzl_qset_delete(struct whc *whc, struct whc_qset *qset) +{ + qset->remove = 1; + queue_work(whc->workqueue, &whc->periodic_work); + qset_delete(whc, qset); +} + + +/** + * pzl_init - initialize the periodic zone list + * @whc: the WHCI host controller + */ +int pzl_init(struct whc *whc) +{ + int i; + + whc->pz_list = dma_alloc_coherent(&whc->umc->dev, sizeof(u64) * 16, + &whc->pz_list_dma, GFP_KERNEL); + if (whc->pz_list == NULL) + return -ENOMEM; + + /* Set T bit on all elements in PZL. */ + for (i = 0; i < 16; i++) + whc->pz_list[i] = cpu_to_le64(QH_LINK_NTDS(8) | QH_LINK_T); + + le_writeq(whc->pz_list_dma, whc->base + WUSBPERIODICLISTBASE); + + return 0; +} + +/** + * pzl_clean_up - free PZL resources + * @whc: the WHCI host controller + * + * The PZL is stopped and empty. + */ +void pzl_clean_up(struct whc *whc) +{ + if (whc->pz_list) + dma_free_coherent(&whc->umc->dev, sizeof(u64) * 16, whc->pz_list, + whc->pz_list_dma); +} diff --git a/drivers/usb/host/whci/qset.c b/drivers/usb/host/whci/qset.c new file mode 100644 index 000000000000..0420037d2e18 --- /dev/null +++ b/drivers/usb/host/whci/qset.c @@ -0,0 +1,567 @@ +/* + * Wireless Host Controller (WHC) qset management. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/kernel.h> +#include <linux/dma-mapping.h> +#include <linux/uwb/umc.h> +#include <linux/usb.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +void dump_qset(struct whc_qset *qset, struct device *dev) +{ + struct whc_std *std; + struct urb *urb = NULL; + int i; + + dev_dbg(dev, "qset %08x\n", (u32)qset->qset_dma); + dev_dbg(dev, " -> %08x\n", (u32)qset->qh.link); + dev_dbg(dev, " info: %08x %08x %08x\n", + qset->qh.info1, qset->qh.info2, qset->qh.info3); + dev_dbg(dev, " sts: %04x errs: %d\n", qset->qh.status, qset->qh.err_count); + dev_dbg(dev, " TD: sts: %08x opts: %08x\n", + qset->qh.overlay.qtd.status, qset->qh.overlay.qtd.options); + + for (i = 0; i < WHCI_QSET_TD_MAX; i++) { + dev_dbg(dev, " %c%c TD[%d]: sts: %08x opts: %08x ptr: %08x\n", + i == qset->td_start ? 'S' : ' ', + i == qset->td_end ? 'E' : ' ', + i, qset->qtd[i].status, qset->qtd[i].options, + (u32)qset->qtd[i].page_list_ptr); + } + dev_dbg(dev, " ntds: %d\n", qset->ntds); + list_for_each_entry(std, &qset->stds, list_node) { + if (urb != std->urb) { + urb = std->urb; + dev_dbg(dev, " urb %p transferred: %d bytes\n", urb, + urb->actual_length); + } + if (std->qtd) + dev_dbg(dev, " sTD[%td]: %zu bytes @ %08x\n", + std->qtd - &qset->qtd[0], + std->len, std->num_pointers ? + (u32)(std->pl_virt[0].buf_ptr) : (u32)std->dma_addr); + else + dev_dbg(dev, " sTD[-]: %zd bytes @ %08x\n", + std->len, std->num_pointers ? + (u32)(std->pl_virt[0].buf_ptr) : (u32)std->dma_addr); + } +} + +struct whc_qset *qset_alloc(struct whc *whc, gfp_t mem_flags) +{ + struct whc_qset *qset; + dma_addr_t dma; + + qset = dma_pool_alloc(whc->qset_pool, mem_flags, &dma); + if (qset == NULL) + return NULL; + memset(qset, 0, sizeof(struct whc_qset)); + + qset->qset_dma = dma; + qset->whc = whc; + + INIT_LIST_HEAD(&qset->list_node); + INIT_LIST_HEAD(&qset->stds); + + return qset; +} + +/** + * qset_fill_qh - fill the static endpoint state in a qset's QHead + * @qset: the qset whose QH needs initializing with static endpoint + * state + * @urb: an urb for a transfer to this endpoint + */ +static void qset_fill_qh(struct whc_qset *qset, struct urb *urb) +{ + struct usb_device *usb_dev = urb->dev; + struct usb_wireless_ep_comp_descriptor *epcd; + bool is_out; + + is_out = usb_pipeout(urb->pipe); + + epcd = (struct usb_wireless_ep_comp_descriptor *)qset->ep->extra; + + if (epcd) { + qset->max_seq = epcd->bMaxSequence; + qset->max_burst = epcd->bMaxBurst; + } else { + qset->max_seq = 2; + qset->max_burst = 1; + } + + qset->qh.info1 = cpu_to_le32( + QH_INFO1_EP(usb_pipeendpoint(urb->pipe)) + | (is_out ? QH_INFO1_DIR_OUT : QH_INFO1_DIR_IN) + | usb_pipe_to_qh_type(urb->pipe) + | QH_INFO1_DEV_INFO_IDX(wusb_port_no_to_idx(usb_dev->portnum)) + | QH_INFO1_MAX_PKT_LEN(usb_maxpacket(urb->dev, urb->pipe, is_out)) + ); + qset->qh.info2 = cpu_to_le32( + QH_INFO2_BURST(qset->max_burst) + | QH_INFO2_DBP(0) + | QH_INFO2_MAX_COUNT(3) + | QH_INFO2_MAX_RETRY(3) + | QH_INFO2_MAX_SEQ(qset->max_seq - 1) + ); + /* FIXME: where can we obtain these Tx parameters from? Why + * doesn't the chip know what Tx power to use? It knows the Rx + * strength and can presumably guess the Tx power required + * from that? */ + qset->qh.info3 = cpu_to_le32( + QH_INFO3_TX_RATE_53_3 + | QH_INFO3_TX_PWR(0) /* 0 == max power */ + ); +} + +/** + * qset_clear - clear fields in a qset so it may be reinserted into a + * schedule + */ +void qset_clear(struct whc *whc, struct whc_qset *qset) +{ + qset->td_start = qset->td_end = qset->ntds = 0; + qset->remove = 0; + + qset->qh.link = cpu_to_le32(QH_LINK_NTDS(8) | QH_LINK_T); + qset->qh.status = cpu_to_le16(QH_STATUS_ICUR(qset->td_start)); + qset->qh.err_count = 0; + qset->qh.cur_window = cpu_to_le32((1 << qset->max_burst) - 1); + qset->qh.scratch[0] = 0; + qset->qh.scratch[1] = 0; + qset->qh.scratch[2] = 0; + + memset(&qset->qh.overlay, 0, sizeof(qset->qh.overlay)); + + init_completion(&qset->remove_complete); +} + +/** + * get_qset - get the qset for an async endpoint + * + * A new qset is created if one does not already exist. + */ +struct whc_qset *get_qset(struct whc *whc, struct urb *urb, + gfp_t mem_flags) +{ + struct whc_qset *qset; + + qset = urb->ep->hcpriv; + if (qset == NULL) { + qset = qset_alloc(whc, mem_flags); + if (qset == NULL) + return NULL; + + qset->ep = urb->ep; + urb->ep->hcpriv = qset; + qset_fill_qh(qset, urb); + } + return qset; +} + +void qset_remove_complete(struct whc *whc, struct whc_qset *qset) +{ + list_del_init(&qset->list_node); + complete(&qset->remove_complete); +} + +/** + * qset_add_qtds - add qTDs for an URB to a qset + * + * Returns true if the list (ASL/PZL) must be updated because (for a + * WHCI 0.95 controller) an activated qTD was pointed to be iCur. + */ +enum whc_update qset_add_qtds(struct whc *whc, struct whc_qset *qset) +{ + struct whc_std *std; + enum whc_update update = 0; + + list_for_each_entry(std, &qset->stds, list_node) { + struct whc_qtd *qtd; + uint32_t status; + + if (qset->ntds >= WHCI_QSET_TD_MAX + || (qset->pause_after_urb && std->urb != qset->pause_after_urb)) + break; + + if (std->qtd) + continue; /* already has a qTD */ + + qtd = std->qtd = &qset->qtd[qset->td_end]; + + /* Fill in setup bytes for control transfers. */ + if (usb_pipecontrol(std->urb->pipe)) + memcpy(qtd->setup, std->urb->setup_packet, 8); + + status = QTD_STS_ACTIVE | QTD_STS_LEN(std->len); + + if (whc_std_last(std) && usb_pipeout(std->urb->pipe)) + status |= QTD_STS_LAST_PKT; + + /* + * For an IN transfer the iAlt field should be set so + * the h/w will automatically advance to the next + * transfer. However, if there are 8 or more TDs + * remaining in this transfer then iAlt cannot be set + * as it could point to somewhere in this transfer. + */ + if (std->ntds_remaining < WHCI_QSET_TD_MAX) { + int ialt; + ialt = (qset->td_end + std->ntds_remaining) % WHCI_QSET_TD_MAX; + status |= QTD_STS_IALT(ialt); + } else if (usb_pipein(std->urb->pipe)) + qset->pause_after_urb = std->urb; + + if (std->num_pointers) + qtd->options = cpu_to_le32(QTD_OPT_IOC); + else + qtd->options = cpu_to_le32(QTD_OPT_IOC | QTD_OPT_SMALL); + qtd->page_list_ptr = cpu_to_le64(std->dma_addr); + + qtd->status = cpu_to_le32(status); + + if (QH_STATUS_TO_ICUR(qset->qh.status) == qset->td_end) + update = WHC_UPDATE_UPDATED; + + if (++qset->td_end >= WHCI_QSET_TD_MAX) + qset->td_end = 0; + qset->ntds++; + } + + return update; +} + +/** + * qset_remove_qtd - remove the first qTD from a qset. + * + * The qTD might be still active (if it's part of a IN URB that + * resulted in a short read) so ensure it's deactivated. + */ +static void qset_remove_qtd(struct whc *whc, struct whc_qset *qset) +{ + qset->qtd[qset->td_start].status = 0; + + if (++qset->td_start >= WHCI_QSET_TD_MAX) + qset->td_start = 0; + qset->ntds--; +} + +/** + * qset_free_std - remove an sTD and free it. + * @whc: the WHCI host controller + * @std: the sTD to remove and free. + */ +void qset_free_std(struct whc *whc, struct whc_std *std) +{ + list_del(&std->list_node); + if (std->num_pointers) { + dma_unmap_single(whc->wusbhc.dev, std->dma_addr, + std->num_pointers * sizeof(struct whc_page_list_entry), + DMA_TO_DEVICE); + kfree(std->pl_virt); + } + + kfree(std); +} + +/** + * qset_remove_qtds - remove an URB's qTDs (and sTDs). + */ +static void qset_remove_qtds(struct whc *whc, struct whc_qset *qset, + struct urb *urb) +{ + struct whc_std *std, *t; + + list_for_each_entry_safe(std, t, &qset->stds, list_node) { + if (std->urb != urb) + break; + if (std->qtd != NULL) + qset_remove_qtd(whc, qset); + qset_free_std(whc, std); + } +} + +/** + * qset_free_stds - free any remaining sTDs for an URB. + */ +static void qset_free_stds(struct whc_qset *qset, struct urb *urb) +{ + struct whc_std *std, *t; + + list_for_each_entry_safe(std, t, &qset->stds, list_node) { + if (std->urb == urb) + qset_free_std(qset->whc, std); + } +} + +static int qset_fill_page_list(struct whc *whc, struct whc_std *std, gfp_t mem_flags) +{ + dma_addr_t dma_addr = std->dma_addr; + dma_addr_t sp, ep; + size_t std_len = std->len; + size_t pl_len; + int p; + + sp = ALIGN(dma_addr, WHCI_PAGE_SIZE); + ep = dma_addr + std_len; + std->num_pointers = DIV_ROUND_UP(ep - sp, WHCI_PAGE_SIZE); + + pl_len = std->num_pointers * sizeof(struct whc_page_list_entry); + std->pl_virt = kmalloc(pl_len, mem_flags); + if (std->pl_virt == NULL) + return -ENOMEM; + std->dma_addr = dma_map_single(whc->wusbhc.dev, std->pl_virt, pl_len, DMA_TO_DEVICE); + + for (p = 0; p < std->num_pointers; p++) { + std->pl_virt[p].buf_ptr = cpu_to_le64(dma_addr); + dma_addr = ALIGN(dma_addr + WHCI_PAGE_SIZE, WHCI_PAGE_SIZE); + } + + return 0; +} + +/** + * urb_dequeue_work - executes asl/pzl update and gives back the urb to the system. + */ +static void urb_dequeue_work(struct work_struct *work) +{ + struct whc_urb *wurb = container_of(work, struct whc_urb, dequeue_work); + struct whc_qset *qset = wurb->qset; + struct whc *whc = qset->whc; + unsigned long flags; + + if (wurb->is_async == true) + asl_update(whc, WUSBCMD_ASYNC_UPDATED + | WUSBCMD_ASYNC_SYNCED_DB + | WUSBCMD_ASYNC_QSET_RM); + else + pzl_update(whc, WUSBCMD_PERIODIC_UPDATED + | WUSBCMD_PERIODIC_SYNCED_DB + | WUSBCMD_PERIODIC_QSET_RM); + + spin_lock_irqsave(&whc->lock, flags); + qset_remove_urb(whc, qset, wurb->urb, wurb->status); + spin_unlock_irqrestore(&whc->lock, flags); +} + +/** + * qset_add_urb - add an urb to the qset's queue. + * + * The URB is chopped into sTDs, one for each qTD that will required. + * At least one qTD (and sTD) is required even if the transfer has no + * data (e.g., for some control transfers). + */ +int qset_add_urb(struct whc *whc, struct whc_qset *qset, struct urb *urb, + gfp_t mem_flags) +{ + struct whc_urb *wurb; + int remaining = urb->transfer_buffer_length; + u64 transfer_dma = urb->transfer_dma; + int ntds_remaining; + + ntds_remaining = DIV_ROUND_UP(remaining, QTD_MAX_XFER_SIZE); + if (ntds_remaining == 0) + ntds_remaining = 1; + + wurb = kzalloc(sizeof(struct whc_urb), mem_flags); + if (wurb == NULL) + goto err_no_mem; + urb->hcpriv = wurb; + wurb->qset = qset; + wurb->urb = urb; + INIT_WORK(&wurb->dequeue_work, urb_dequeue_work); + + while (ntds_remaining) { + struct whc_std *std; + size_t std_len; + + std = kmalloc(sizeof(struct whc_std), mem_flags); + if (std == NULL) + goto err_no_mem; + + std_len = remaining; + if (std_len > QTD_MAX_XFER_SIZE) + std_len = QTD_MAX_XFER_SIZE; + + std->urb = urb; + std->dma_addr = transfer_dma; + std->len = std_len; + std->ntds_remaining = ntds_remaining; + std->qtd = NULL; + + INIT_LIST_HEAD(&std->list_node); + list_add_tail(&std->list_node, &qset->stds); + + if (std_len > WHCI_PAGE_SIZE) { + if (qset_fill_page_list(whc, std, mem_flags) < 0) + goto err_no_mem; + } else + std->num_pointers = 0; + + ntds_remaining--; + remaining -= std_len; + transfer_dma += std_len; + } + + return 0; + +err_no_mem: + qset_free_stds(qset, urb); + return -ENOMEM; +} + +/** + * qset_remove_urb - remove an URB from the urb queue. + * + * The URB is returned to the USB subsystem. + */ +void qset_remove_urb(struct whc *whc, struct whc_qset *qset, + struct urb *urb, int status) +{ + struct wusbhc *wusbhc = &whc->wusbhc; + struct whc_urb *wurb = urb->hcpriv; + + usb_hcd_unlink_urb_from_ep(&wusbhc->usb_hcd, urb); + /* Drop the lock as urb->complete() may enqueue another urb. */ + spin_unlock(&whc->lock); + wusbhc_giveback_urb(wusbhc, urb, status); + spin_lock(&whc->lock); + + kfree(wurb); +} + +/** + * get_urb_status_from_qtd - get the completed urb status from qTD status + * @urb: completed urb + * @status: qTD status + */ +static int get_urb_status_from_qtd(struct urb *urb, u32 status) +{ + if (status & QTD_STS_HALTED) { + if (status & QTD_STS_DBE) + return usb_pipein(urb->pipe) ? -ENOSR : -ECOMM; + else if (status & QTD_STS_BABBLE) + return -EOVERFLOW; + else if (status & QTD_STS_RCE) + return -ETIME; + return -EPIPE; + } + if (usb_pipein(urb->pipe) + && (urb->transfer_flags & URB_SHORT_NOT_OK) + && urb->actual_length < urb->transfer_buffer_length) + return -EREMOTEIO; + return 0; +} + +/** + * process_inactive_qtd - process an inactive (but not halted) qTD. + * + * Update the urb with the transfer bytes from the qTD, if the urb is + * completely transfered or (in the case of an IN only) the LPF is + * set, then the transfer is complete and the urb should be returned + * to the system. + */ +void process_inactive_qtd(struct whc *whc, struct whc_qset *qset, + struct whc_qtd *qtd) +{ + struct whc_std *std = list_first_entry(&qset->stds, struct whc_std, list_node); + struct urb *urb = std->urb; + uint32_t status; + bool complete; + + status = le32_to_cpu(qtd->status); + + urb->actual_length += std->len - QTD_STS_TO_LEN(status); + + if (usb_pipein(urb->pipe) && (status & QTD_STS_LAST_PKT)) + complete = true; + else + complete = whc_std_last(std); + + qset_remove_qtd(whc, qset); + qset_free_std(whc, std); + + /* + * Transfers for this URB are complete? Then return it to the + * USB subsystem. + */ + if (complete) { + qset_remove_qtds(whc, qset, urb); + qset_remove_urb(whc, qset, urb, get_urb_status_from_qtd(urb, status)); + + /* + * If iAlt isn't valid then the hardware didn't + * advance iCur. Adjust the start and end pointers to + * match iCur. + */ + if (!(status & QTD_STS_IALT_VALID)) + qset->td_start = qset->td_end + = QH_STATUS_TO_ICUR(le16_to_cpu(qset->qh.status)); + qset->pause_after_urb = NULL; + } +} + +/** + * process_halted_qtd - process a qset with a halted qtd + * + * Remove all the qTDs for the failed URB and return the failed URB to + * the USB subsystem. Then remove all other qTDs so the qset can be + * removed. + * + * FIXME: this is the point where rate adaptation can be done. If a + * transfer failed because it exceeded the maximum number of retries + * then it could be reactivated with a slower rate without having to + * remove the qset. + */ +void process_halted_qtd(struct whc *whc, struct whc_qset *qset, + struct whc_qtd *qtd) +{ + struct whc_std *std = list_first_entry(&qset->stds, struct whc_std, list_node); + struct urb *urb = std->urb; + int urb_status; + + urb_status = get_urb_status_from_qtd(urb, le32_to_cpu(qtd->status)); + + qset_remove_qtds(whc, qset, urb); + qset_remove_urb(whc, qset, urb, urb_status); + + list_for_each_entry(std, &qset->stds, list_node) { + if (qset->ntds == 0) + break; + qset_remove_qtd(whc, qset); + std->qtd = NULL; + } + + qset->remove = 1; +} + +void qset_free(struct whc *whc, struct whc_qset *qset) +{ + dma_pool_free(whc->qset_pool, qset, qset->qset_dma); +} + +/** + * qset_delete - wait for a qset to be unused, then free it. + */ +void qset_delete(struct whc *whc, struct whc_qset *qset) +{ + wait_for_completion(&qset->remove_complete); + qset_free(whc, qset); +} diff --git a/drivers/usb/host/whci/whcd.h b/drivers/usb/host/whci/whcd.h new file mode 100644 index 000000000000..1d2a53bd39fd --- /dev/null +++ b/drivers/usb/host/whci/whcd.h @@ -0,0 +1,197 @@ +/* + * Wireless Host Controller (WHC) private header. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ +#ifndef __WHCD_H +#define __WHCD_H + +#include <linux/uwb/whci.h> +#include <linux/workqueue.h> + +#include "whci-hc.h" + +/* Generic command timeout. */ +#define WHC_GENCMD_TIMEOUT_MS 100 + + +struct whc { + struct wusbhc wusbhc; + struct umc_dev *umc; + + resource_size_t base_phys; + void __iomem *base; + int irq; + + u8 n_devices; + u8 n_keys; + u8 n_mmc_ies; + + u64 *pz_list; + struct dn_buf_entry *dn_buf; + struct di_buf_entry *di_buf; + dma_addr_t pz_list_dma; + dma_addr_t dn_buf_dma; + dma_addr_t di_buf_dma; + + spinlock_t lock; + struct mutex mutex; + + void * gen_cmd_buf; + dma_addr_t gen_cmd_buf_dma; + wait_queue_head_t cmd_wq; + + struct workqueue_struct *workqueue; + struct work_struct dn_work; + + struct dma_pool *qset_pool; + + struct list_head async_list; + struct list_head async_removed_list; + wait_queue_head_t async_list_wq; + struct work_struct async_work; + + struct list_head periodic_list[5]; + struct list_head periodic_removed_list; + wait_queue_head_t periodic_list_wq; + struct work_struct periodic_work; +}; + +#define wusbhc_to_whc(w) (container_of((w), struct whc, wusbhc)) + +/** + * struct whc_std - a software TD. + * @urb: the URB this sTD is for. + * @offset: start of the URB's data for this TD. + * @len: the length of data in the associated TD. + * @ntds_remaining: number of TDs (starting from this one) in this transfer. + * + * Queued URBs may require more TDs than are available in a qset so we + * use a list of these "software TDs" (sTDs) to hold per-TD data. + */ +struct whc_std { + struct urb *urb; + size_t len; + int ntds_remaining; + struct whc_qtd *qtd; + + struct list_head list_node; + int num_pointers; + dma_addr_t dma_addr; + struct whc_page_list_entry *pl_virt; +}; + +/** + * struct whc_urb - per URB host controller structure. + * @urb: the URB this struct is for. + * @qset: the qset associated to the URB. + * @dequeue_work: the work to remove the URB when dequeued. + * @is_async: the URB belongs to async sheduler or not. + * @status: the status to be returned when calling wusbhc_giveback_urb. + */ +struct whc_urb { + struct urb *urb; + struct whc_qset *qset; + struct work_struct dequeue_work; + bool is_async; + int status; +}; + +/** + * whc_std_last - is this sTD the URB's last? + * @std: the sTD to check. + */ +static inline bool whc_std_last(struct whc_std *std) +{ + return std->ntds_remaining <= 1; +} + +enum whc_update { + WHC_UPDATE_ADDED = 0x01, + WHC_UPDATE_REMOVED = 0x02, + WHC_UPDATE_UPDATED = 0x04, +}; + +/* init.c */ +int whc_init(struct whc *whc); +void whc_clean_up(struct whc *whc); + +/* hw.c */ +void whc_write_wusbcmd(struct whc *whc, u32 mask, u32 val); +int whc_do_gencmd(struct whc *whc, u32 cmd, u32 params, void *addr, size_t len); + +/* wusb.c */ +int whc_wusbhc_start(struct wusbhc *wusbhc); +void whc_wusbhc_stop(struct wusbhc *wusbhc); +int whc_mmcie_add(struct wusbhc *wusbhc, u8 interval, u8 repeat_cnt, + u8 handle, struct wuie_hdr *wuie); +int whc_mmcie_rm(struct wusbhc *wusbhc, u8 handle); +int whc_bwa_set(struct wusbhc *wusbhc, s8 stream_index, const struct uwb_mas_bm *mas_bm); +int whc_dev_info_set(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev); +int whc_set_num_dnts(struct wusbhc *wusbhc, u8 interval, u8 slots); +int whc_set_ptk(struct wusbhc *wusbhc, u8 port_idx, u32 tkid, + const void *ptk, size_t key_size); +int whc_set_gtk(struct wusbhc *wusbhc, u32 tkid, + const void *gtk, size_t key_size); +int whc_set_cluster_id(struct whc *whc, u8 bcid); + +/* int.c */ +irqreturn_t whc_int_handler(struct usb_hcd *hcd); +void whc_dn_work(struct work_struct *work); + +/* asl.c */ +void asl_start(struct whc *whc); +void asl_stop(struct whc *whc); +int asl_init(struct whc *whc); +void asl_clean_up(struct whc *whc); +int asl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags); +int asl_urb_dequeue(struct whc *whc, struct urb *urb, int status); +void asl_qset_delete(struct whc *whc, struct whc_qset *qset); +void scan_async_work(struct work_struct *work); + +/* pzl.c */ +int pzl_init(struct whc *whc); +void pzl_clean_up(struct whc *whc); +void pzl_start(struct whc *whc); +void pzl_stop(struct whc *whc); +int pzl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags); +int pzl_urb_dequeue(struct whc *whc, struct urb *urb, int status); +void pzl_qset_delete(struct whc *whc, struct whc_qset *qset); +void scan_periodic_work(struct work_struct *work); + +/* qset.c */ +struct whc_qset *qset_alloc(struct whc *whc, gfp_t mem_flags); +void qset_free(struct whc *whc, struct whc_qset *qset); +struct whc_qset *get_qset(struct whc *whc, struct urb *urb, gfp_t mem_flags); +void qset_delete(struct whc *whc, struct whc_qset *qset); +void qset_clear(struct whc *whc, struct whc_qset *qset); +int qset_add_urb(struct whc *whc, struct whc_qset *qset, struct urb *urb, + gfp_t mem_flags); +void qset_free_std(struct whc *whc, struct whc_std *std); +void qset_remove_urb(struct whc *whc, struct whc_qset *qset, + struct urb *urb, int status); +void process_halted_qtd(struct whc *whc, struct whc_qset *qset, + struct whc_qtd *qtd); +void process_inactive_qtd(struct whc *whc, struct whc_qset *qset, + struct whc_qtd *qtd); +enum whc_update qset_add_qtds(struct whc *whc, struct whc_qset *qset); +void qset_remove_complete(struct whc *whc, struct whc_qset *qset); +void dump_qset(struct whc_qset *qset, struct device *dev); +void pzl_update(struct whc *whc, uint32_t wusbcmd); +void asl_update(struct whc *whc, uint32_t wusbcmd); + +#endif /* #ifndef __WHCD_H */ diff --git a/drivers/usb/host/whci/whci-hc.h b/drivers/usb/host/whci/whci-hc.h new file mode 100644 index 000000000000..bff1eb7a35cf --- /dev/null +++ b/drivers/usb/host/whci/whci-hc.h @@ -0,0 +1,416 @@ +/* + * Wireless Host Controller (WHC) data structures. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ +#ifndef _WHCI_WHCI_HC_H +#define _WHCI_WHCI_HC_H + +#include <linux/list.h> + +/** + * WHCI_PAGE_SIZE - page size use by WHCI + * + * WHCI assumes that host system uses pages of 4096 octets. + */ +#define WHCI_PAGE_SIZE 4096 + + +/** + * QTD_MAX_TXFER_SIZE - max number of bytes to transfer with a single + * qtd. + * + * This is 2^20 - 1. + */ +#define QTD_MAX_XFER_SIZE 1048575 + + +/** + * struct whc_qtd - Queue Element Transfer Descriptors (qTD) + * + * This describes the data for a bulk, control or interrupt transfer. + * + * [WHCI] section 3.2.4 + */ +struct whc_qtd { + __le32 status; /*< remaining transfer len and transfer status */ + __le32 options; + __le64 page_list_ptr; /*< physical pointer to data buffer page list*/ + __u8 setup[8]; /*< setup data for control transfers */ +} __attribute__((packed)); + +#define QTD_STS_ACTIVE (1 << 31) /* enable execution of transaction */ +#define QTD_STS_HALTED (1 << 30) /* transfer halted */ +#define QTD_STS_DBE (1 << 29) /* data buffer error */ +#define QTD_STS_BABBLE (1 << 28) /* babble detected */ +#define QTD_STS_RCE (1 << 27) /* retry count exceeded */ +#define QTD_STS_LAST_PKT (1 << 26) /* set Last Packet Flag in WUSB header */ +#define QTD_STS_INACTIVE (1 << 25) /* queue set is marked inactive */ +#define QTD_STS_IALT_VALID (1 << 23) /* iAlt field is valid */ +#define QTD_STS_IALT(i) (QTD_STS_IALT_VALID | ((i) << 20)) /* iAlt field */ +#define QTD_STS_LEN(l) ((l) << 0) /* transfer length */ +#define QTD_STS_TO_LEN(s) ((s) & 0x000fffff) + +#define QTD_OPT_IOC (1 << 1) /* page_list_ptr points to buffer directly */ +#define QTD_OPT_SMALL (1 << 0) /* interrupt on complete */ + +/** + * struct whc_itd - Isochronous Queue Element Transfer Descriptors (iTD) + * + * This describes the data and other parameters for an isochronous + * transfer. + * + * [WHCI] section 3.2.5 + */ +struct whc_itd { + __le16 presentation_time; /*< presentation time for OUT transfers */ + __u8 num_segments; /*< number of data segments in segment list */ + __u8 status; /*< command execution status */ + __le32 options; /*< misc transfer options */ + __le64 page_list_ptr; /*< physical pointer to data buffer page list */ + __le64 seg_list_ptr; /*< physical pointer to segment list */ +} __attribute__((packed)); + +#define ITD_STS_ACTIVE (1 << 7) /* enable execution of transaction */ +#define ITD_STS_DBE (1 << 5) /* data buffer error */ +#define ITD_STS_BABBLE (1 << 4) /* babble detected */ +#define ITD_STS_INACTIVE (1 << 1) /* queue set is marked inactive */ + +#define ITD_OPT_IOC (1 << 1) /* interrupt on complete */ +#define ITD_OPT_SMALL (1 << 0) /* page_list_ptr points to buffer directly */ + +/** + * Page list entry. + * + * A TD's page list must contain sufficient page list entries for the + * total data length in the TD. + * + * [WHCI] section 3.2.4.3 + */ +struct whc_page_list_entry { + __le64 buf_ptr; /*< physical pointer to buffer */ +} __attribute__((packed)); + +/** + * struct whc_seg_list_entry - Segment list entry. + * + * Describes a portion of the data buffer described in the containing + * qTD's page list. + * + * seg_ptr = qtd->page_list_ptr[qtd->seg_list_ptr[seg].idx].buf_ptr + * + qtd->seg_list_ptr[seg].offset; + * + * Segments can't cross page boundries. + * + * [WHCI] section 3.2.5.5 + */ +struct whc_seg_list_entry { + __le16 len; /*< segment length */ + __u8 idx; /*< index into page list */ + __u8 status; /*< segment status */ + __le16 offset; /*< 12 bit offset into page */ +} __attribute__((packed)); + +/** + * struct whc_qhead - endpoint and status information for a qset. + * + * [WHCI] section 3.2.6 + */ +struct whc_qhead { + __le64 link; /*< next qset in list */ + __le32 info1; + __le32 info2; + __le32 info3; + __le16 status; + __le16 err_count; /*< transaction error count */ + __le32 cur_window; + __le32 scratch[3]; /*< h/w scratch area */ + union { + struct whc_qtd qtd; + struct whc_itd itd; + } overlay; +} __attribute__((packed)); + +#define QH_LINK_PTR_MASK (~0x03Full) +#define QH_LINK_PTR(ptr) ((ptr) & QH_LINK_PTR_MASK) +#define QH_LINK_IQS (1 << 4) /* isochronous queue set */ +#define QH_LINK_NTDS(n) (((n) - 1) << 1) /* number of TDs in queue set */ +#define QH_LINK_T (1 << 0) /* last queue set in periodic schedule list */ + +#define QH_INFO1_EP(e) ((e) << 0) /* endpoint number */ +#define QH_INFO1_DIR_IN (1 << 4) /* IN transfer */ +#define QH_INFO1_DIR_OUT (0 << 4) /* OUT transfer */ +#define QH_INFO1_TR_TYPE_CTRL (0x0 << 5) /* control transfer */ +#define QH_INFO1_TR_TYPE_ISOC (0x1 << 5) /* isochronous transfer */ +#define QH_INFO1_TR_TYPE_BULK (0x2 << 5) /* bulk transfer */ +#define QH_INFO1_TR_TYPE_INT (0x3 << 5) /* interrupt */ +#define QH_INFO1_TR_TYPE_LP_INT (0x7 << 5) /* low power interrupt */ +#define QH_INFO1_DEV_INFO_IDX(i) ((i) << 8) /* index into device info buffer */ +#define QH_INFO1_SET_INACTIVE (1 << 15) /* set inactive after transfer */ +#define QH_INFO1_MAX_PKT_LEN(l) ((l) << 16) /* maximum packet length */ + +#define QH_INFO2_BURST(b) ((b) << 0) /* maximum burst length */ +#define QH_INFO2_DBP(p) ((p) << 5) /* data burst policy (see [WUSB] table 5-7) */ +#define QH_INFO2_MAX_COUNT(c) ((c) << 8) /* max isoc/int pkts per zone */ +#define QH_INFO2_RQS (1 << 15) /* reactivate queue set */ +#define QH_INFO2_MAX_RETRY(r) ((r) << 16) /* maximum transaction retries */ +#define QH_INFO2_MAX_SEQ(s) ((s) << 20) /* maximum sequence number */ +#define QH_INFO3_MAX_DELAY(d) ((d) << 0) /* maximum stream delay in 125 us units (isoc only) */ +#define QH_INFO3_INTERVAL(i) ((i) << 16) /* segment interval in 125 us units (isoc only) */ + +#define QH_INFO3_TX_RATE_53_3 (0 << 24) +#define QH_INFO3_TX_RATE_80 (1 << 24) +#define QH_INFO3_TX_RATE_106_7 (2 << 24) +#define QH_INFO3_TX_RATE_160 (3 << 24) +#define QH_INFO3_TX_RATE_200 (4 << 24) +#define QH_INFO3_TX_RATE_320 (5 << 24) +#define QH_INFO3_TX_RATE_400 (6 << 24) +#define QH_INFO3_TX_RATE_480 (7 << 24) +#define QH_INFO3_TX_PWR(p) ((p) << 29) /* transmit power (see [WUSB] section 5.2.1.2) */ + +#define QH_STATUS_FLOW_CTRL (1 << 15) +#define QH_STATUS_ICUR(i) ((i) << 5) +#define QH_STATUS_TO_ICUR(s) (((s) >> 5) & 0x7) + +/** + * usb_pipe_to_qh_type - USB core pipe type to QH transfer type + * + * Returns the QH type field for a USB core pipe type. + */ +static inline unsigned usb_pipe_to_qh_type(unsigned pipe) +{ + static const unsigned type[] = { + [PIPE_ISOCHRONOUS] = QH_INFO1_TR_TYPE_ISOC, + [PIPE_INTERRUPT] = QH_INFO1_TR_TYPE_INT, + [PIPE_CONTROL] = QH_INFO1_TR_TYPE_CTRL, + [PIPE_BULK] = QH_INFO1_TR_TYPE_BULK, + }; + return type[usb_pipetype(pipe)]; +} + +/** + * Maxiumum number of TDs in a qset. + */ +#define WHCI_QSET_TD_MAX 8 + +/** + * struct whc_qset - WUSB data transfers to a specific endpoint + * @qh: the QHead of this qset + * @qtd: up to 8 qTDs (for qsets for control, bulk and interrupt + * transfers) + * @itd: up to 8 iTDs (for qsets for isochronous transfers) + * @qset_dma: DMA address for this qset + * @whc: WHCI HC this qset is for + * @ep: endpoint + * @stds: list of sTDs queued to this qset + * @ntds: number of qTDs queued (not necessarily the same as nTDs + * field in the QH) + * @td_start: index of the first qTD in the list + * @td_end: index of next free qTD in the list (provided + * ntds < WHCI_QSET_TD_MAX) + * + * Queue Sets (qsets) are added to the asynchronous schedule list + * (ASL) or the periodic zone list (PZL). + * + * qsets may contain up to 8 TDs (either qTDs or iTDs as appropriate). + * Each TD may refer to at most 1 MiB of data. If a single transfer + * has > 8MiB of data, TDs can be reused as they are completed since + * the TD list is used as a circular buffer. Similarly, several + * (smaller) transfers may be queued in a qset. + * + * WHCI controllers may cache portions of the qsets in the ASL and + * PZL, requiring the WHCD to inform the WHC that the lists have been + * updated (fields changed or qsets inserted or removed). For safe + * insertion and removal of qsets from the lists the schedule must be + * stopped to avoid races in updating the QH link pointers. + * + * Since the HC is free to execute qsets in any order, all transfers + * to an endpoint should use the same qset to ensure transfers are + * executed in the order they're submitted. + * + * [WHCI] section 3.2.3 + */ +struct whc_qset { + struct whc_qhead qh; + union { + struct whc_qtd qtd[WHCI_QSET_TD_MAX]; + struct whc_itd itd[WHCI_QSET_TD_MAX]; + }; + + /* private data for WHCD */ + dma_addr_t qset_dma; + struct whc *whc; + struct usb_host_endpoint *ep; + struct list_head stds; + int ntds; + int td_start; + int td_end; + struct list_head list_node; + unsigned in_sw_list:1; + unsigned in_hw_list:1; + unsigned remove:1; + struct urb *pause_after_urb; + struct completion remove_complete; + int max_burst; + int max_seq; +}; + +static inline void whc_qset_set_link_ptr(u64 *ptr, u64 target) +{ + if (target) + *ptr = (*ptr & ~(QH_LINK_PTR_MASK | QH_LINK_T)) | QH_LINK_PTR(target); + else + *ptr = QH_LINK_T; +} + +/** + * struct di_buf_entry - Device Information (DI) buffer entry. + * + * There's one of these per connected device. + */ +struct di_buf_entry { + __le32 availability_info[8]; /*< MAS availability information, one MAS per bit */ + __le32 addr_sec_info; /*< addressing and security info */ + __le32 reserved[7]; +} __attribute__((packed)); + +#define WHC_DI_SECURE (1 << 31) +#define WHC_DI_DISABLE (1 << 30) +#define WHC_DI_KEY_IDX(k) ((k) << 8) +#define WHC_DI_KEY_IDX_MASK 0x0000ff00 +#define WHC_DI_DEV_ADDR(a) ((a) << 0) +#define WHC_DI_DEV_ADDR_MASK 0x000000ff + +/** + * struct dn_buf_entry - Device Notification (DN) buffer entry. + * + * [WHCI] section 3.2.8 + */ +struct dn_buf_entry { + __u8 msg_size; /*< number of octets of valid DN data */ + __u8 reserved1; + __u8 src_addr; /*< source address */ + __u8 status; /*< buffer entry status */ + __le32 tkid; /*< TKID for source device, valid if secure bit is set */ + __u8 dn_data[56]; /*< up to 56 octets of DN data */ +} __attribute__((packed)); + +#define WHC_DN_STATUS_VALID (1 << 7) /* buffer entry is valid */ +#define WHC_DN_STATUS_SECURE (1 << 6) /* notification received using secure frame */ + +#define WHC_N_DN_ENTRIES (4096 / sizeof(struct dn_buf_entry)) + +/* The Add MMC IE WUSB Generic Command may take up to 256 bytes of + data. [WHCI] section 2.4.7. */ +#define WHC_GEN_CMD_DATA_LEN 256 + +/* + * HC registers. + * + * [WHCI] section 2.4 + */ + +#define WHCIVERSION 0x00 + +#define WHCSPARAMS 0x04 +# define WHCSPARAMS_TO_N_MMC_IES(p) (((p) >> 16) & 0xff) +# define WHCSPARAMS_TO_N_KEYS(p) (((p) >> 8) & 0xff) +# define WHCSPARAMS_TO_N_DEVICES(p) (((p) >> 0) & 0x7f) + +#define WUSBCMD 0x08 +# define WUSBCMD_BCID(b) ((b) << 16) +# define WUSBCMD_BCID_MASK (0xff << 16) +# define WUSBCMD_ASYNC_QSET_RM (1 << 12) +# define WUSBCMD_PERIODIC_QSET_RM (1 << 11) +# define WUSBCMD_WUSBSI(s) ((s) << 8) +# define WUSBCMD_WUSBSI_MASK (0x7 << 8) +# define WUSBCMD_ASYNC_SYNCED_DB (1 << 7) +# define WUSBCMD_PERIODIC_SYNCED_DB (1 << 6) +# define WUSBCMD_ASYNC_UPDATED (1 << 5) +# define WUSBCMD_PERIODIC_UPDATED (1 << 4) +# define WUSBCMD_ASYNC_EN (1 << 3) +# define WUSBCMD_PERIODIC_EN (1 << 2) +# define WUSBCMD_WHCRESET (1 << 1) +# define WUSBCMD_RUN (1 << 0) + +#define WUSBSTS 0x0c +# define WUSBSTS_ASYNC_SCHED (1 << 15) +# define WUSBSTS_PERIODIC_SCHED (1 << 14) +# define WUSBSTS_DNTS_SCHED (1 << 13) +# define WUSBSTS_HCHALTED (1 << 12) +# define WUSBSTS_GEN_CMD_DONE (1 << 9) +# define WUSBSTS_CHAN_TIME_ROLLOVER (1 << 8) +# define WUSBSTS_DNTS_OVERFLOW (1 << 7) +# define WUSBSTS_BPST_ADJUSTMENT_CHANGED (1 << 6) +# define WUSBSTS_HOST_ERR (1 << 5) +# define WUSBSTS_ASYNC_SCHED_SYNCED (1 << 4) +# define WUSBSTS_PERIODIC_SCHED_SYNCED (1 << 3) +# define WUSBSTS_DNTS_INT (1 << 2) +# define WUSBSTS_ERR_INT (1 << 1) +# define WUSBSTS_INT (1 << 0) +# define WUSBSTS_INT_MASK 0x3ff + +#define WUSBINTR 0x10 +# define WUSBINTR_GEN_CMD_DONE (1 << 9) +# define WUSBINTR_CHAN_TIME_ROLLOVER (1 << 8) +# define WUSBINTR_DNTS_OVERFLOW (1 << 7) +# define WUSBINTR_BPST_ADJUSTMENT_CHANGED (1 << 6) +# define WUSBINTR_HOST_ERR (1 << 5) +# define WUSBINTR_ASYNC_SCHED_SYNCED (1 << 4) +# define WUSBINTR_PERIODIC_SCHED_SYNCED (1 << 3) +# define WUSBINTR_DNTS_INT (1 << 2) +# define WUSBINTR_ERR_INT (1 << 1) +# define WUSBINTR_INT (1 << 0) +# define WUSBINTR_ALL 0x3ff + +#define WUSBGENCMDSTS 0x14 +# define WUSBGENCMDSTS_ACTIVE (1 << 31) +# define WUSBGENCMDSTS_ERROR (1 << 24) +# define WUSBGENCMDSTS_IOC (1 << 23) +# define WUSBGENCMDSTS_MMCIE_ADD 0x01 +# define WUSBGENCMDSTS_MMCIE_RM 0x02 +# define WUSBGENCMDSTS_SET_MAS 0x03 +# define WUSBGENCMDSTS_CHAN_STOP 0x04 +# define WUSBGENCMDSTS_RWP_EN 0x05 + +#define WUSBGENCMDPARAMS 0x18 +#define WUSBGENADDR 0x20 +#define WUSBASYNCLISTADDR 0x28 +#define WUSBDNTSBUFADDR 0x30 +#define WUSBDEVICEINFOADDR 0x38 + +#define WUSBSETSECKEYCMD 0x40 +# define WUSBSETSECKEYCMD_SET (1 << 31) +# define WUSBSETSECKEYCMD_ERASE (1 << 30) +# define WUSBSETSECKEYCMD_GTK (1 << 8) +# define WUSBSETSECKEYCMD_IDX(i) ((i) << 0) + +#define WUSBTKID 0x44 +#define WUSBSECKEY 0x48 +#define WUSBPERIODICLISTBASE 0x58 +#define WUSBMASINDEX 0x60 + +#define WUSBDNTSCTRL 0x64 +# define WUSBDNTSCTRL_ACTIVE (1 << 31) +# define WUSBDNTSCTRL_INTERVAL(i) ((i) << 8) +# define WUSBDNTSCTRL_SLOTS(s) ((s) << 0) + +#define WUSBTIME 0x68 +#define WUSBBPST 0x6c +#define WUSBDIBUPDATED 0x70 + +#endif /* #ifndef _WHCI_WHCI_HC_H */ diff --git a/drivers/usb/host/whci/wusb.c b/drivers/usb/host/whci/wusb.c new file mode 100644 index 000000000000..66e4ddcd961d --- /dev/null +++ b/drivers/usb/host/whci/wusb.c @@ -0,0 +1,241 @@ +/* + * Wireless Host Controller (WHC) WUSB operations. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/version.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/uwb/umc.h> +#define D_LOCAL 1 +#include <linux/uwb/debug.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +#if D_LOCAL >= 1 +static void dump_di(struct whc *whc, int idx) +{ + struct di_buf_entry *di = &whc->di_buf[idx]; + struct device *dev = &whc->umc->dev; + char buf[128]; + + bitmap_scnprintf(buf, sizeof(buf), (unsigned long *)di->availability_info, UWB_NUM_MAS); + + d_printf(1, dev, "DI[%d]\n", idx); + d_printf(1, dev, " availability: %s\n", buf); + d_printf(1, dev, " %c%c key idx: %d dev addr: %d\n", + (di->addr_sec_info & WHC_DI_SECURE) ? 'S' : ' ', + (di->addr_sec_info & WHC_DI_DISABLE) ? 'D' : ' ', + (di->addr_sec_info & WHC_DI_KEY_IDX_MASK) >> 8, + (di->addr_sec_info & WHC_DI_DEV_ADDR_MASK)); +} +#else +static inline void dump_di(struct whc *whc, int idx) +{ +} +#endif + +static int whc_update_di(struct whc *whc, int idx) +{ + int offset = idx / 32; + u32 bit = 1 << (idx % 32); + + dump_di(whc, idx); + + le_writel(bit, whc->base + WUSBDIBUPDATED + offset); + + return whci_wait_for(&whc->umc->dev, + whc->base + WUSBDIBUPDATED + offset, bit, 0, + 100, "DI update"); +} + +/* + * WHCI starts and stops MMCs based on there being a valid GTK so + * these need only start/stop the asynchronous and periodic schedules. + */ + +int whc_wusbhc_start(struct wusbhc *wusbhc) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + + asl_start(whc); + pzl_start(whc); + + return 0; +} + +void whc_wusbhc_stop(struct wusbhc *wusbhc) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + + pzl_stop(whc); + asl_stop(whc); +} + +int whc_mmcie_add(struct wusbhc *wusbhc, u8 interval, u8 repeat_cnt, + u8 handle, struct wuie_hdr *wuie) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + u32 params; + + params = (interval << 24) + | (repeat_cnt << 16) + | (wuie->bLength << 8) + | handle; + + return whc_do_gencmd(whc, WUSBGENCMDSTS_MMCIE_ADD, params, wuie, wuie->bLength); +} + +int whc_mmcie_rm(struct wusbhc *wusbhc, u8 handle) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + u32 params; + + params = handle; + + return whc_do_gencmd(whc, WUSBGENCMDSTS_MMCIE_RM, params, NULL, 0); +} + +int whc_bwa_set(struct wusbhc *wusbhc, s8 stream_index, const struct uwb_mas_bm *mas_bm) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + + if (stream_index >= 0) + whc_write_wusbcmd(whc, WUSBCMD_WUSBSI_MASK, WUSBCMD_WUSBSI(stream_index)); + + return whc_do_gencmd(whc, WUSBGENCMDSTS_SET_MAS, 0, (void *)mas_bm, sizeof(*mas_bm)); +} + +int whc_dev_info_set(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + int idx = wusb_dev->port_idx; + struct di_buf_entry *di = &whc->di_buf[idx]; + int ret; + + mutex_lock(&whc->mutex); + + uwb_mas_bm_copy_le(di->availability_info, &wusb_dev->availability); + di->addr_sec_info &= ~(WHC_DI_DISABLE | WHC_DI_DEV_ADDR_MASK); + di->addr_sec_info |= WHC_DI_DEV_ADDR(wusb_dev->addr); + + ret = whc_update_di(whc, idx); + + mutex_unlock(&whc->mutex); + + return ret; +} + +/* + * Set the number of Device Notification Time Slots (DNTS) and enable + * device notifications. + */ +int whc_set_num_dnts(struct wusbhc *wusbhc, u8 interval, u8 slots) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + u32 dntsctrl; + + dntsctrl = WUSBDNTSCTRL_ACTIVE + | WUSBDNTSCTRL_INTERVAL(interval) + | WUSBDNTSCTRL_SLOTS(slots); + + le_writel(dntsctrl, whc->base + WUSBDNTSCTRL); + + return 0; +} + +static int whc_set_key(struct whc *whc, u8 key_index, uint32_t tkid, + const void *key, size_t key_size, bool is_gtk) +{ + uint32_t setkeycmd; + uint32_t seckey[4]; + int i; + int ret; + + memcpy(seckey, key, key_size); + setkeycmd = WUSBSETSECKEYCMD_SET | WUSBSETSECKEYCMD_IDX(key_index); + if (is_gtk) + setkeycmd |= WUSBSETSECKEYCMD_GTK; + + le_writel(tkid, whc->base + WUSBTKID); + for (i = 0; i < 4; i++) + le_writel(seckey[i], whc->base + WUSBSECKEY + 4*i); + le_writel(setkeycmd, whc->base + WUSBSETSECKEYCMD); + + ret = whci_wait_for(&whc->umc->dev, whc->base + WUSBSETSECKEYCMD, + WUSBSETSECKEYCMD_SET, 0, 100, "set key"); + + return ret; +} + +/** + * whc_set_ptk - set the PTK to use for a device. + * + * The index into the key table for this PTK is the same as the + * device's port index. + */ +int whc_set_ptk(struct wusbhc *wusbhc, u8 port_idx, u32 tkid, + const void *ptk, size_t key_size) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + struct di_buf_entry *di = &whc->di_buf[port_idx]; + int ret; + + mutex_lock(&whc->mutex); + + if (ptk) { + ret = whc_set_key(whc, port_idx, tkid, ptk, key_size, false); + if (ret) + goto out; + + di->addr_sec_info &= ~WHC_DI_KEY_IDX_MASK; + di->addr_sec_info |= WHC_DI_SECURE | WHC_DI_KEY_IDX(port_idx); + } else + di->addr_sec_info &= ~WHC_DI_SECURE; + + ret = whc_update_di(whc, port_idx); +out: + mutex_unlock(&whc->mutex); + return ret; +} + +/** + * whc_set_gtk - set the GTK for subsequent broadcast packets + * + * The GTK is stored in the last entry in the key table (the previous + * N_DEVICES entries are for the per-device PTKs). + */ +int whc_set_gtk(struct wusbhc *wusbhc, u32 tkid, + const void *gtk, size_t key_size) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + int ret; + + mutex_lock(&whc->mutex); + + ret = whc_set_key(whc, whc->n_devices, tkid, gtk, key_size, true); + + mutex_unlock(&whc->mutex); + + return ret; +} + +int whc_set_cluster_id(struct whc *whc, u8 bcid) +{ + whc_write_wusbcmd(whc, WUSBCMD_BCID_MASK, WUSBCMD_BCID(bcid)); + return 0; +} diff --git a/drivers/usb/image/mdc800.c b/drivers/usb/image/mdc800.c index 0fb114ca1eba..878c77ca086e 100644 --- a/drivers/usb/image/mdc800.c +++ b/drivers/usb/image/mdc800.c @@ -355,13 +355,14 @@ static int mdc800_usb_waitForIRQ (int mode, int msec) if (mdc800->camera_request_ready>0) { mdc800->camera_request_ready=0; - err ("timeout waiting for camera."); + dev_err(&mdc800->dev->dev, "timeout waiting for camera.\n"); return -1; } if (mdc800->state == NOT_CONNECTED) { - warn ("Camera gets disconnected during waiting for irq."); + printk(KERN_WARNING "mdc800: Camera gets disconnected " + "during waiting for irq.\n"); mdc800->camera_request_ready=0; return -2; } @@ -379,7 +380,8 @@ static void mdc800_usb_write_notify (struct urb *urb) int status = urb->status; if (status != 0) - err ("writing command fails (status=%i)", status); + dev_err(&mdc800->dev->dev, + "writing command fails (status=%i)\n", status); else mdc800->state=READY; mdc800->written = 1; @@ -406,7 +408,8 @@ static void mdc800_usb_download_notify (struct urb *urb) mdc800->state=READY; } } else { - err ("request bytes fails (status:%i)", status); + dev_err(&mdc800->dev->dev, + "request bytes fails (status:%i)\n", status); } mdc800->downloaded = 1; wake_up (&mdc800->download_wait); @@ -443,13 +446,14 @@ static int mdc800_usb_probe (struct usb_interface *intf, if (mdc800->dev != NULL) { - warn ("only one Mustek MDC800 is supported."); + dev_warn(&intf->dev, "only one Mustek MDC800 is supported.\n"); return -ENODEV; } if (dev->descriptor.bNumConfigurations != 1) { - err ("probe fails -> wrong Number of Configuration"); + dev_err(&intf->dev, + "probe fails -> wrong Number of Configuration\n"); return -ENODEV; } intf_desc = intf->cur_altsetting; @@ -461,7 +465,7 @@ static int mdc800_usb_probe (struct usb_interface *intf, || ( intf_desc->desc.bNumEndpoints != 4) ) { - err ("probe fails -> wrong Interface"); + dev_err(&intf->dev, "probe fails -> wrong Interface\n"); return -ENODEV; } @@ -482,19 +486,19 @@ static int mdc800_usb_probe (struct usb_interface *intf, } if (mdc800->endpoint[i] == -1) { - err ("probe fails -> Wrong Endpoints."); + dev_err(&intf->dev, "probe fails -> Wrong Endpoints.\n"); return -ENODEV; } } - info ("Found Mustek MDC800 on USB."); + dev_info(&intf->dev, "Found Mustek MDC800 on USB.\n"); mutex_lock(&mdc800->io_lock); retval = usb_register_dev(intf, &mdc800_class); if (retval) { - err ("Not able to get a minor for this device."); + dev_err(&intf->dev, "Not able to get a minor for this device.\n"); return -ENODEV; } @@ -570,7 +574,7 @@ static void mdc800_usb_disconnect (struct usb_interface *intf) mdc800->dev = NULL; usb_set_intfdata(intf, NULL); } - info ("Mustek MDC800 disconnected from USB."); + dev_info(&intf->dev, "Mustek MDC800 disconnected from USB.\n"); } @@ -644,7 +648,8 @@ static int mdc800_device_open (struct inode* inode, struct file *file) mdc800->irq_urb->dev = mdc800->dev; retval = usb_submit_urb (mdc800->irq_urb, GFP_KERNEL); if (retval) { - err ("request USB irq fails (submit_retval=%i).", retval); + dev_err(&mdc800->dev->dev, + "request USB irq fails (submit_retval=%i).\n", retval); errn = -EIO; goto error_out; } @@ -701,7 +706,8 @@ static ssize_t mdc800_device_read (struct file *file, char __user *buf, size_t l } if (mdc800->state == WORKING) { - warn ("Illegal State \"working\" reached during read ?!"); + printk(KERN_WARNING "mdc800: Illegal State \"working\"" + "reached during read ?!\n"); mutex_unlock(&mdc800->io_lock); return -EBUSY; } @@ -733,7 +739,9 @@ static ssize_t mdc800_device_read (struct file *file, char __user *buf, size_t l mdc800->download_urb->dev = mdc800->dev; retval = usb_submit_urb (mdc800->download_urb, GFP_KERNEL); if (retval) { - err ("Can't submit download urb (retval=%i)",retval); + dev_err(&mdc800->dev->dev, + "Can't submit download urb " + "(retval=%i)\n", retval); mutex_unlock(&mdc800->io_lock); return len-left; } @@ -742,7 +750,10 @@ static ssize_t mdc800_device_read (struct file *file, char __user *buf, size_t l mdc800->downloaded = 0; if (mdc800->download_urb->status != 0) { - err ("request download-bytes fails (status=%i)",mdc800->download_urb->status); + dev_err(&mdc800->dev->dev, + "request download-bytes fails " + "(status=%i)\n", + mdc800->download_urb->status); mutex_unlock(&mdc800->io_lock); return len-left; } @@ -839,7 +850,8 @@ static ssize_t mdc800_device_write (struct file *file, const char __user *buf, s if (mdc800_usb_waitForIRQ (0,TO_GET_READY)) { - err ("Camera didn't get ready.\n"); + dev_err(&mdc800->dev->dev, + "Camera didn't get ready.\n"); mutex_unlock(&mdc800->io_lock); return -EIO; } @@ -851,7 +863,9 @@ static ssize_t mdc800_device_write (struct file *file, const char __user *buf, s mdc800->write_urb->dev = mdc800->dev; retval = usb_submit_urb (mdc800->write_urb, GFP_KERNEL); if (retval) { - err ("submitting write urb fails (retval=%i)", retval); + dev_err(&mdc800->dev->dev, + "submitting write urb fails " + "(retval=%i)\n", retval); mutex_unlock(&mdc800->io_lock); return -EIO; } @@ -870,7 +884,9 @@ static ssize_t mdc800_device_write (struct file *file, const char __user *buf, s case 0x3e: /* Take shot in Fine Mode (WCam Mode) */ if (mdc800->pic_len < 0) { - err ("call 0x07 before 0x05,0x3e"); + dev_err(&mdc800->dev->dev, + "call 0x07 before " + "0x05,0x3e\n"); mdc800->state=READY; mutex_unlock(&mdc800->io_lock); return -EIO; @@ -890,7 +906,7 @@ static ssize_t mdc800_device_write (struct file *file, const char __user *buf, s if (mdc800_usb_waitForIRQ (1,TO_READ_FROM_IRQ)) { - err ("requesting answer from irq fails"); + dev_err(&mdc800->dev->dev, "requesting answer from irq fails\n"); mutex_unlock(&mdc800->io_lock); return -EIO; } @@ -918,7 +934,7 @@ static ssize_t mdc800_device_write (struct file *file, const char __user *buf, s { if (mdc800_usb_waitForIRQ (0,TO_DEFAULT_COMMAND)) { - err ("Command Timeout."); + dev_err(&mdc800->dev->dev, "Command Timeout.\n"); mutex_unlock(&mdc800->io_lock); return -EIO; } @@ -1018,7 +1034,8 @@ static int __init usb_mdc800_init (void) if (retval) goto cleanup_on_fail; - info (DRIVER_VERSION ":" DRIVER_DESC); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; @@ -1028,7 +1045,7 @@ cleanup_on_fail: if (mdc800 != NULL) { - err ("can't alloc memory!"); + printk(KERN_ERR "mdc800: can't alloc memory!\n"); kfree(mdc800->download_urb_buffer); kfree(mdc800->write_urb_buffer); diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig index 4ea50e0abcbb..e463db5d8188 100644 --- a/drivers/usb/misc/Kconfig +++ b/drivers/usb/misc/Kconfig @@ -42,6 +42,15 @@ config USB_ADUTUX To compile this driver as a module, choose M here. The module will be called adutux. +config USB_SEVSEG + tristate "USB 7-Segment LED Display" + depends on USB + help + Say Y here if you have a USB 7-Segment Display by Delcom + + To compile this driver as a module, choose M here: the + module will be called usbsevseg. + config USB_RIO500 tristate "USB Diamond Rio500 support" depends on USB @@ -271,3 +280,18 @@ config USB_ISIGHTFW The firmware for this driver must be extracted from the MacOS driver beforehand. Tools for doing so are available at http://bersace03.free.fr + +config USB_VST + tristate "USB VST driver" + depends on USB + help + This driver is intended for Vernier Software Technologies + bulk usb devices such as their Ocean-Optics spectrometers or + Labquest. + It is a bulk channel driver with configurable read and write + timeouts. + + To compile this driver as a module, choose M here: the + module will be called vstusb. + + diff --git a/drivers/usb/misc/Makefile b/drivers/usb/misc/Makefile index 45b4e12afb08..1334f7bdd7be 100644 --- a/drivers/usb/misc/Makefile +++ b/drivers/usb/misc/Makefile @@ -26,6 +26,8 @@ obj-$(CONFIG_USB_RIO500) += rio500.o obj-$(CONFIG_USB_TEST) += usbtest.o obj-$(CONFIG_USB_TRANCEVIBRATOR) += trancevibrator.o obj-$(CONFIG_USB_USS720) += uss720.o +obj-$(CONFIG_USB_SEVSEG) += usbsevseg.o +obj-$(CONFIG_USB_VST) += vstusb.o obj-$(CONFIG_USB_SISUSBVGA) += sisusbvga/ diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c index 965f6eaea6a0..7b6922e08ed1 100644 --- a/drivers/usb/misc/adutux.c +++ b/drivers/usb/misc/adutux.c @@ -283,8 +283,8 @@ static int adu_open(struct inode *inode, struct file *file) interface = usb_find_interface(&adu_driver, subminor); if (!interface) { - err("%s - error, can't find device for minor %d", - __func__, subminor); + printk(KERN_ERR "adutux: %s - error, can't find device for " + "minor %d\n", __func__, subminor); retval = -ENODEV; goto exit_no_device; } @@ -416,7 +416,8 @@ static ssize_t adu_read(struct file *file, __user char *buffer, size_t count, /* verify that the device wasn't unplugged */ if (dev->udev == NULL) { retval = -ENODEV; - err("No device or device unplugged %d", retval); + printk(KERN_ERR "adutux: No device or device unplugged %d\n", + retval); goto exit; } @@ -576,7 +577,8 @@ static ssize_t adu_write(struct file *file, const __user char *buffer, /* verify that the device wasn't unplugged */ if (dev->udev == NULL) { retval = -ENODEV; - err("No device or device unplugged %d", retval); + printk(KERN_ERR "adutux: No device or device unplugged %d\n", + retval); goto exit; } @@ -645,7 +647,8 @@ static ssize_t adu_write(struct file *file, const __user char *buffer, retval = usb_submit_urb(dev->interrupt_out_urb, GFP_KERNEL); if (retval < 0) { dev->out_urb_finished = 1; - err("Couldn't submit interrupt_out_urb %d", retval); + dev_err(&dev->udev->dev, "Couldn't submit " + "interrupt_out_urb %d\n", retval); goto exit; } @@ -890,13 +893,14 @@ static int __init adu_init(void) /* register this driver with the USB subsystem */ result = usb_register(&adu_driver); if (result < 0) { - err("usb_register failed for the "__FILE__" driver. " - "Error number %d", result); + printk(KERN_ERR "usb_register failed for the "__FILE__ + " driver. Error number %d\n", result); goto exit; } - info("adutux " DRIVER_DESC " " DRIVER_VERSION); - info("adutux is an experimental driver. Use at your own risk"); + printk(KERN_INFO "adutux " DRIVER_DESC " " DRIVER_VERSION "\n"); + printk(KERN_INFO "adutux is an experimental driver. " + "Use at your own risk\n"); exit: dbg(2," %s : leave, return value %d", __func__, result); diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c index a076c24a312a..1d8e39a557d9 100644 --- a/drivers/usb/misc/appledisplay.c +++ b/drivers/usb/misc/appledisplay.c @@ -130,7 +130,8 @@ static void appledisplay_complete(struct urb *urb) exit: retval = usb_submit_urb(pdata->urb, GFP_ATOMIC); if (retval) { - err("%s - usb_submit_urb failed with result %d", + dev_err(&pdata->udev->dev, + "%s - usb_submit_urb failed with result %d\n", __func__, retval); } } @@ -220,7 +221,7 @@ static int appledisplay_probe(struct usb_interface *iface, } } if (!int_in_endpointAddr) { - err("Could not find int-in endpoint"); + dev_err(&iface->dev, "Could not find int-in endpoint\n"); return -EIO; } @@ -228,7 +229,7 @@ static int appledisplay_probe(struct usb_interface *iface, pdata = kzalloc(sizeof(struct appledisplay), GFP_KERNEL); if (!pdata) { retval = -ENOMEM; - err("Out of memory"); + dev_err(&iface->dev, "Out of memory\n"); goto error; } @@ -241,8 +242,8 @@ static int appledisplay_probe(struct usb_interface *iface, pdata->msgdata = kmalloc(ACD_MSG_BUFFER_LEN, GFP_KERNEL); if (!pdata->msgdata) { retval = -ENOMEM; - err("appledisplay: Allocating buffer for control messages " - "failed"); + dev_err(&iface->dev, + "Allocating buffer for control messages failed\n"); goto error; } @@ -250,7 +251,7 @@ static int appledisplay_probe(struct usb_interface *iface, pdata->urb = usb_alloc_urb(0, GFP_KERNEL); if (!pdata->urb) { retval = -ENOMEM; - err("appledisplay: Allocating URB failed"); + dev_err(&iface->dev, "Allocating URB failed\n"); goto error; } @@ -259,7 +260,7 @@ static int appledisplay_probe(struct usb_interface *iface, GFP_KERNEL, &pdata->urb->transfer_dma); if (!pdata->urbdata) { retval = -ENOMEM; - err("appledisplay: Allocating URB buffer failed"); + dev_err(&iface->dev, "Allocating URB buffer failed\n"); goto error; } @@ -270,7 +271,7 @@ static int appledisplay_probe(struct usb_interface *iface, pdata, 1); if (usb_submit_urb(pdata->urb, GFP_KERNEL)) { retval = -EIO; - err("appledisplay: Submitting URB failed"); + dev_err(&iface->dev, "Submitting URB failed\n"); goto error; } @@ -280,7 +281,7 @@ static int appledisplay_probe(struct usb_interface *iface, pdata->bd = backlight_device_register(bl_name, NULL, pdata, &appledisplay_bl_data); if (IS_ERR(pdata->bd)) { - err("appledisplay: Backlight registration failed"); + dev_err(&iface->dev, "Backlight registration failed\n"); goto error; } @@ -291,7 +292,8 @@ static int appledisplay_probe(struct usb_interface *iface, if (brightness < 0) { retval = brightness; - err("appledisplay: Error while getting initial brightness: %d", retval); + dev_err(&iface->dev, + "Error while getting initial brightness: %d\n", retval); goto error; } @@ -314,7 +316,7 @@ error: pdata->urbdata, pdata->urb->transfer_dma); usb_free_urb(pdata->urb); } - if (pdata->bd) + if (pdata->bd && !IS_ERR(pdata->bd)) backlight_device_unregister(pdata->bd); kfree(pdata->msgdata); } @@ -352,7 +354,7 @@ static int __init appledisplay_init(void) { wq = create_singlethread_workqueue("appledisplay"); if (!wq) { - err("Could not create work queue\n"); + printk(KERN_ERR "appledisplay: Could not create work queue\n"); return -ENOMEM; } diff --git a/drivers/usb/misc/cypress_cy7c63.c b/drivers/usb/misc/cypress_cy7c63.c index 937940404b7a..5720bfef6a38 100644 --- a/drivers/usb/misc/cypress_cy7c63.c +++ b/drivers/usb/misc/cypress_cy7c63.c @@ -278,9 +278,9 @@ static int __init cypress_init(void) /* register this driver with the USB subsystem */ result = usb_register(&cypress_driver); - if (result) { - err("Function usb_register failed! Error number: %d\n", result); - } + if (result) + printk(KERN_ERR KBUILD_MODNAME ": usb_register failed! " + "Error number: %d\n", result); return result; } diff --git a/drivers/usb/misc/cytherm.c b/drivers/usb/misc/cytherm.c index 1cd9e7eba93b..4fb3c38b924b 100644 --- a/drivers/usb/misc/cytherm.c +++ b/drivers/usb/misc/cytherm.c @@ -422,13 +422,14 @@ static int __init usb_cytherm_init(void) int result; result = usb_register(&cytherm_driver); - if (result) - { - err("usb_register failed. Error number %d", result); + if (result) { + printk(KERN_ERR KBUILD_MODNAME ": usb_register failed! " + "Error number: %d\n", result); return result; } - info(DRIVER_VERSION ":" DRIVER_DESC); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; } diff --git a/drivers/usb/misc/emi26.c b/drivers/usb/misc/emi26.c index 4b994a0cd272..e762beb5f3c6 100644 --- a/drivers/usb/misc/emi26.c +++ b/drivers/usb/misc/emi26.c @@ -50,7 +50,7 @@ static int emi26_writememory (struct usb_device *dev, int address, unsigned char *buffer = kmemdup(data, length, GFP_KERNEL); if (!buffer) { - err("emi26: kmalloc(%d) failed.", length); + dev_err(&dev->dev, "kmalloc(%d) failed.\n", length); return -ENOMEM; } /* Note: usb_control_msg returns negative value on error or length of the @@ -64,11 +64,11 @@ static int emi26_writememory (struct usb_device *dev, int address, static int emi26_set_reset (struct usb_device *dev, unsigned char reset_bit) { int response; - info("%s - %d", __func__, reset_bit); + dev_info(&dev->dev, "%s - %d\n", __func__, reset_bit); /* printk(KERN_DEBUG "%s - %d", __func__, reset_bit); */ response = emi26_writememory (dev, CPUCS_REG, &reset_bit, 1, 0xa0); if (response < 0) { - err("emi26: set_reset (%d) failed", reset_bit); + dev_err(&dev->dev, "set_reset (%d) failed\n", reset_bit); } return response; } @@ -88,7 +88,8 @@ static int emi26_load_firmware (struct usb_device *dev) buf = kmalloc(FW_LOAD_SIZE, GFP_KERNEL); if (!buf) { - err( "%s - error loading firmware: error = %d", __func__, -ENOMEM); + dev_err(&dev->dev, "%s - error loading firmware: error = %d\n", + __func__, -ENOMEM); err = -ENOMEM; goto wraperr; } @@ -106,14 +107,16 @@ static int emi26_load_firmware (struct usb_device *dev) &dev->dev); if (err) { nofw: - err( "%s - request_firmware() failed", __func__); + dev_err(&dev->dev, "%s - request_firmware() failed\n", + __func__); goto wraperr; } /* Assert reset (stop the CPU in the EMI) */ err = emi26_set_reset(dev,1); if (err < 0) { - err( "%s - error loading firmware: error = %d", __func__, err); + dev_err(&dev->dev,"%s - error loading firmware: error = %d\n", + __func__, err); goto wraperr; } @@ -254,7 +257,7 @@ static int emi26_probe(struct usb_interface *intf, const struct usb_device_id *i { struct usb_device *dev = interface_to_usbdev(intf); - info("%s start", __func__); + dev_info(&intf->dev, "%s start\n", __func__); emi26_load_firmware(dev); diff --git a/drivers/usb/misc/emi62.c b/drivers/usb/misc/emi62.c index 5d859ded5bbf..602ee05ba9ff 100644 --- a/drivers/usb/misc/emi62.c +++ b/drivers/usb/misc/emi62.c @@ -73,7 +73,7 @@ static int emi62_writememory(struct usb_device *dev, int address, static int emi62_set_reset (struct usb_device *dev, unsigned char reset_bit) { int response; - info("%s - %d", __func__, reset_bit); + dev_info(&dev->dev, "%s - %d\n", __func__, reset_bit); response = emi62_writememory (dev, CPUCS_REG, &reset_bit, 1, 0xa0); if (response < 0) { @@ -271,7 +271,7 @@ static int emi62_probe(struct usb_interface *intf, const struct usb_device_id *i struct usb_device *dev = interface_to_usbdev(intf); dev_dbg(&intf->dev, "emi62_probe\n"); - info("%s start", __func__); + dev_info(&intf->dev, "%s start\n", __func__); emi62_load_firmware(dev); diff --git a/drivers/usb/misc/ftdi-elan.c b/drivers/usb/misc/ftdi-elan.c index 97c280971532..79a7668ef264 100644 --- a/drivers/usb/misc/ftdi-elan.c +++ b/drivers/usb/misc/ftdi-elan.c @@ -698,7 +698,7 @@ static ssize_t ftdi_elan_read(struct file *file, char __user *buffer, int retval = usb_bulk_msg(ftdi->udev, usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr), ftdi->bulk_in_buffer, ftdi->bulk_in_size, - &packet_bytes, msecs_to_jiffies(50)); + &packet_bytes, 50); if (packet_bytes > 2) { ftdi->bulk_in_left = packet_bytes - 2; ftdi->bulk_in_last = 1; @@ -960,7 +960,7 @@ static int ftdi_elan_respond_engine(struct usb_ftdi *ftdi) int retval = usb_bulk_msg(ftdi->udev, usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr), ftdi->bulk_in_buffer, ftdi->bulk_in_size, - &packet_bytes, msecs_to_jiffies(500)); + &packet_bytes, 500); char diag[30 *3 + 4]; char *d = diag; int m = packet_bytes; @@ -1880,7 +1880,7 @@ static int ftdi_elan_flush_input_fifo(struct usb_ftdi *ftdi) int retval = usb_bulk_msg(ftdi->udev, usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr), ftdi->bulk_in_buffer, ftdi->bulk_in_size, - &packet_bytes, msecs_to_jiffies(100)); + &packet_bytes, 100); if (packet_bytes > 2) { char diag[30 *3 + 4]; char *d = diag; @@ -2067,7 +2067,7 @@ static int ftdi_elan_synchronize(struct usb_ftdi *ftdi) usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr), ftdi->bulk_in_buffer, ftdi->bulk_in_size, - &packet_bytes, msecs_to_jiffies(500)); + &packet_bytes, 500); if (packet_bytes > 2) { char diag[30 *3 + 4]; char *d = diag; @@ -2176,7 +2176,7 @@ static int ftdi_elan_stuck_waiting(struct usb_ftdi *ftdi) int retval = usb_bulk_msg(ftdi->udev, usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr), ftdi->bulk_in_buffer, ftdi->bulk_in_size, - &packet_bytes, msecs_to_jiffies(1000)); + &packet_bytes, 1000); if (packet_bytes > 2) { char diag[30 *3 + 4]; char *d = diag; diff --git a/drivers/usb/misc/idmouse.c b/drivers/usb/misc/idmouse.c index 4bcf7fb4e5da..6da8887538c7 100644 --- a/drivers/usb/misc/idmouse.c +++ b/drivers/usb/misc/idmouse.c @@ -403,14 +403,15 @@ static void idmouse_disconnect(struct usb_interface *interface) mutex_unlock(&dev->lock); } - info("%s disconnected", DRIVER_DESC); + dev_info(&interface->dev, "disconnected\n"); } static int __init usb_idmouse_init(void) { int result; - info(DRIVER_DESC " " DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); /* register this driver with the USB subsystem */ result = usb_register(&idmouse_driver); diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c index 9370326a5940..ab0f3226158b 100644 --- a/drivers/usb/misc/legousbtower.c +++ b/drivers/usb/misc/legousbtower.c @@ -851,9 +851,8 @@ static int tower_probe (struct usb_interface *interface, const struct usb_device dbg(2, "%s: enter", __func__); - if (udev == NULL) { - info ("udev is NULL."); - } + if (udev == NULL) + dev_info(&interface->dev, "udev is NULL.\n"); /* allocate memory for our device state and initialize it */ @@ -954,7 +953,9 @@ static int tower_probe (struct usb_interface *interface, const struct usb_device dev->minor = interface->minor; /* let the user know what node this device is now attached to */ - info ("LEGO USB Tower #%d now attached to major %d minor %d", (dev->minor - LEGO_USB_TOWER_MINOR_BASE), USB_MAJOR, dev->minor); + dev_info(&interface->dev, "LEGO USB Tower #%d now attached to major " + "%d minor %d\n", (dev->minor - LEGO_USB_TOWER_MINOR_BASE), + USB_MAJOR, dev->minor); /* get the firmware version and log it */ result = usb_control_msg (udev, @@ -971,10 +972,10 @@ static int tower_probe (struct usb_interface *interface, const struct usb_device retval = result; goto error; } - info("LEGO USB Tower firmware version is %d.%d build %d", - get_version_reply.major, - get_version_reply.minor, - le16_to_cpu(get_version_reply.build_no)); + dev_info(&interface->dev, "LEGO USB Tower firmware version is %d.%d " + "build %d\n", get_version_reply.major, + get_version_reply.minor, + le16_to_cpu(get_version_reply.build_no)); exit: @@ -1021,7 +1022,8 @@ static void tower_disconnect (struct usb_interface *interface) mutex_unlock(&dev->lock); } - info("LEGO USB Tower #%d now disconnected", (minor - LEGO_USB_TOWER_MINOR_BASE)); + dev_info(&interface->dev, "LEGO USB Tower #%d now disconnected\n", + (minor - LEGO_USB_TOWER_MINOR_BASE)); dbg(2, "%s: leave", __func__); } @@ -1046,7 +1048,8 @@ static int __init lego_usb_tower_init(void) goto exit; } - info(DRIVER_DESC " " DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); exit: dbg(2, "%s: leave, return value %d", __func__, retval); diff --git a/drivers/usb/misc/rio500.c b/drivers/usb/misc/rio500.c index 248a12aacef6..deb95bb49fd1 100644 --- a/drivers/usb/misc/rio500.c +++ b/drivers/usb/misc/rio500.c @@ -89,7 +89,7 @@ static int open_rio(struct inode *inode, struct file *file) mutex_unlock(&(rio->lock)); - info("Rio opened."); + dev_info(&rio->rio_dev->dev, "Rio opened.\n"); return 0; } @@ -100,7 +100,7 @@ static int close_rio(struct inode *inode, struct file *file) rio->isopen = 0; - info("Rio closed."); + dev_info(&rio->rio_dev->dev, "Rio closed.\n"); return 0; } @@ -451,7 +451,7 @@ static int probe_rio(struct usb_interface *intf, struct rio_usb_data *rio = &rio_instance; int retval; - info("USB Rio found at address %d", dev->devnum); + dev_info(&intf->dev, "USB Rio found at address %d\n", dev->devnum); retval = usb_register_dev(intf, &usb_rio_class); if (retval) { @@ -503,7 +503,7 @@ static void disconnect_rio(struct usb_interface *intf) kfree(rio->ibuf); kfree(rio->obuf); - info("USB Rio disconnected."); + dev_info(&intf->dev, "USB Rio disconnected.\n"); rio->present = 0; mutex_unlock(&(rio->lock)); @@ -531,7 +531,8 @@ static int __init usb_rio_init(void) if (retval) goto out; - info(DRIVER_VERSION ":" DRIVER_DESC); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); out: return retval; diff --git a/drivers/usb/misc/trancevibrator.c b/drivers/usb/misc/trancevibrator.c index 03368edf3f22..2e14102955c5 100644 --- a/drivers/usb/misc/trancevibrator.c +++ b/drivers/usb/misc/trancevibrator.c @@ -144,7 +144,8 @@ static int __init tv_init(void) return retval; } - info(DRIVER_VERSION ":" DRIVER_DESC); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; } diff --git a/drivers/usb/misc/usblcd.c b/drivers/usb/misc/usblcd.c index 2db4228fbb01..e0ff9ccd866b 100644 --- a/drivers/usb/misc/usblcd.c +++ b/drivers/usb/misc/usblcd.c @@ -311,7 +311,7 @@ static int lcd_probe(struct usb_interface *interface, const struct usb_device_id dev->interface = interface; if (le16_to_cpu(dev->udev->descriptor.idProduct) != 0x0001) { - warn(KERN_INFO "USBLCD model not supported."); + dev_warn(&interface->dev, "USBLCD model not supported.\n"); return -ENODEV; } @@ -359,12 +359,13 @@ static int lcd_probe(struct usb_interface *interface, const struct usb_device_id i = le16_to_cpu(dev->udev->descriptor.bcdDevice); - info("USBLCD Version %1d%1d.%1d%1d found at address %d", - (i & 0xF000)>>12,(i & 0xF00)>>8,(i & 0xF0)>>4,(i & 0xF), - dev->udev->devnum); + dev_info(&interface->dev, "USBLCD Version %1d%1d.%1d%1d found " + "at address %d\n", (i & 0xF000)>>12, (i & 0xF00)>>8, + (i & 0xF0)>>4,(i & 0xF), dev->udev->devnum); /* let the user know what node this device is now attached to */ - info("USB LCD device now attached to USBLCD-%d", interface->minor); + dev_info(&interface->dev, "USB LCD device now attached to USBLCD-%d\n", + interface->minor); return 0; error: @@ -413,7 +414,7 @@ static void lcd_disconnect(struct usb_interface *interface) /* decrement our usage count */ kref_put(&dev->kref, lcd_delete); - info("USB LCD #%d now disconnected", minor); + dev_info(&interface->dev, "USB LCD #%d now disconnected\n", minor); } static struct usb_driver lcd_driver = { diff --git a/drivers/usb/misc/usbsevseg.c b/drivers/usb/misc/usbsevseg.c new file mode 100644 index 000000000000..28a6a3a09538 --- /dev/null +++ b/drivers/usb/misc/usbsevseg.c @@ -0,0 +1,394 @@ +/* + * USB 7 Segment Driver + * + * Copyright (C) 2008 Harrison Metzger <harrisonmetz@gmail.com> + * Based on usbled.c by Greg Kroah-Hartman (greg@kroah.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation, version 2. + * + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/string.h> +#include <linux/usb.h> + + +#define DRIVER_AUTHOR "Harrison Metzger <harrisonmetz@gmail.com>" +#define DRIVER_DESC "USB 7 Segment Driver" + +#define VENDOR_ID 0x0fc5 +#define PRODUCT_ID 0x1227 +#define MAXLEN 6 + +/* table of devices that work with this driver */ +static struct usb_device_id id_table[] = { + { USB_DEVICE(VENDOR_ID, PRODUCT_ID) }, + { }, +}; +MODULE_DEVICE_TABLE(usb, id_table); + +/* the different text display modes the device is capable of */ +static char *display_textmodes[] = {"raw", "hex", "ascii", NULL}; + +struct usb_sevsegdev { + struct usb_device *udev; + + u8 powered; + u8 mode_msb; + u8 mode_lsb; + u8 decimals[MAXLEN]; + u8 textmode; + u8 text[MAXLEN]; + u16 textlength; +}; + +/* sysfs_streq can't replace this completely + * If the device was in hex mode, and the user wanted a 0, + * if str commands are used, we would assume the end of string + * so mem commands are used. + */ +inline size_t my_memlen(const char *buf, size_t count) +{ + if (count > 0 && buf[count-1] == '\n') + return count - 1; + else + return count; +} + +static void update_display_powered(struct usb_sevsegdev *mydev) +{ + int rc; + + rc = usb_control_msg(mydev->udev, + usb_sndctrlpipe(mydev->udev, 0), + 0x12, + 0x48, + (80 * 0x100) + 10, /* (power mode) */ + (0x00 * 0x100) + (mydev->powered ? 1 : 0), + NULL, + 0, + 2000); + if (rc < 0) + dev_dbg(&mydev->udev->dev, "power retval = %d\n", rc); +} + +static void update_display_mode(struct usb_sevsegdev *mydev) +{ + int rc; + + rc = usb_control_msg(mydev->udev, + usb_sndctrlpipe(mydev->udev, 0), + 0x12, + 0x48, + (82 * 0x100) + 10, /* (set mode) */ + (mydev->mode_msb * 0x100) + mydev->mode_lsb, + NULL, + 0, + 2000); + + if (rc < 0) + dev_dbg(&mydev->udev->dev, "mode retval = %d\n", rc); +} + +static void update_display_visual(struct usb_sevsegdev *mydev) +{ + int rc; + int i; + unsigned char *buffer; + u8 decimals = 0; + + buffer = kzalloc(MAXLEN, GFP_KERNEL); + if (!buffer) { + dev_err(&mydev->udev->dev, "out of memory\n"); + return; + } + + /* The device is right to left, where as you write left to right */ + for (i = 0; i < mydev->textlength; i++) + buffer[i] = mydev->text[mydev->textlength-1-i]; + + rc = usb_control_msg(mydev->udev, + usb_sndctrlpipe(mydev->udev, 0), + 0x12, + 0x48, + (85 * 0x100) + 10, /* (write text) */ + (0 * 0x100) + mydev->textmode, /* mode */ + buffer, + mydev->textlength, + 2000); + + if (rc < 0) + dev_dbg(&mydev->udev->dev, "write retval = %d\n", rc); + + kfree(buffer); + + /* The device is right to left, where as you write left to right */ + for (i = 0; i < sizeof(mydev->decimals); i++) + decimals |= mydev->decimals[i] << i; + + rc = usb_control_msg(mydev->udev, + usb_sndctrlpipe(mydev->udev, 0), + 0x12, + 0x48, + (86 * 0x100) + 10, /* (set decimal) */ + (0 * 0x100) + decimals, /* decimals */ + NULL, + 0, + 2000); + + if (rc < 0) + dev_dbg(&mydev->udev->dev, "decimal retval = %d\n", rc); +} + +#define MYDEV_ATTR_SIMPLE_UNSIGNED(name, update_fcn) \ +static ssize_t show_attr_##name(struct device *dev, \ + struct device_attribute *attr, char *buf) \ +{ \ + struct usb_interface *intf = to_usb_interface(dev); \ + struct usb_sevsegdev *mydev = usb_get_intfdata(intf); \ + \ + return sprintf(buf, "%u\n", mydev->name); \ +} \ + \ +static ssize_t set_attr_##name(struct device *dev, \ + struct device_attribute *attr, const char *buf, size_t count) \ +{ \ + struct usb_interface *intf = to_usb_interface(dev); \ + struct usb_sevsegdev *mydev = usb_get_intfdata(intf); \ + \ + mydev->name = simple_strtoul(buf, NULL, 10); \ + update_fcn(mydev); \ + \ + return count; \ +} \ +static DEVICE_ATTR(name, S_IWUGO | S_IRUGO, show_attr_##name, set_attr_##name); + +static ssize_t show_attr_text(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct usb_interface *intf = to_usb_interface(dev); + struct usb_sevsegdev *mydev = usb_get_intfdata(intf); + + return snprintf(buf, mydev->textlength, "%s\n", mydev->text); +} + +static ssize_t set_attr_text(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct usb_interface *intf = to_usb_interface(dev); + struct usb_sevsegdev *mydev = usb_get_intfdata(intf); + size_t end = my_memlen(buf, count); + + if (end > sizeof(mydev->text)) + return -EINVAL; + + memset(mydev->text, 0, sizeof(mydev->text)); + mydev->textlength = end; + + if (end > 0) + memcpy(mydev->text, buf, end); + + update_display_visual(mydev); + return count; +} + +static DEVICE_ATTR(text, S_IWUGO | S_IRUGO, show_attr_text, set_attr_text); + +static ssize_t show_attr_decimals(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct usb_interface *intf = to_usb_interface(dev); + struct usb_sevsegdev *mydev = usb_get_intfdata(intf); + int i; + int pos; + + for (i = 0; i < sizeof(mydev->decimals); i++) { + pos = sizeof(mydev->decimals) - 1 - i; + if (mydev->decimals[i] == 0) + buf[pos] = '0'; + else if (mydev->decimals[i] == 1) + buf[pos] = '1'; + else + buf[pos] = 'x'; + } + + buf[sizeof(mydev->decimals)] = '\n'; + return sizeof(mydev->decimals) + 1; +} + +static ssize_t set_attr_decimals(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct usb_interface *intf = to_usb_interface(dev); + struct usb_sevsegdev *mydev = usb_get_intfdata(intf); + size_t end = my_memlen(buf, count); + int i; + + if (end > sizeof(mydev->decimals)) + return -EINVAL; + + for (i = 0; i < end; i++) + if (buf[i] != '0' && buf[i] != '1') + return -EINVAL; + + memset(mydev->decimals, 0, sizeof(mydev->decimals)); + for (i = 0; i < end; i++) + if (buf[i] == '1') + mydev->decimals[end-1-i] = 1; + + update_display_visual(mydev); + + return count; +} + +static DEVICE_ATTR(decimals, S_IWUGO | S_IRUGO, + show_attr_decimals, set_attr_decimals); + +static ssize_t show_attr_textmode(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct usb_interface *intf = to_usb_interface(dev); + struct usb_sevsegdev *mydev = usb_get_intfdata(intf); + int i; + + buf[0] = 0; + + for (i = 0; display_textmodes[i]; i++) { + if (mydev->textmode == i) { + strcat(buf, " ["); + strcat(buf, display_textmodes[i]); + strcat(buf, "] "); + } else { + strcat(buf, " "); + strcat(buf, display_textmodes[i]); + strcat(buf, " "); + } + } + strcat(buf, "\n"); + + + return strlen(buf); +} + +static ssize_t set_attr_textmode(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct usb_interface *intf = to_usb_interface(dev); + struct usb_sevsegdev *mydev = usb_get_intfdata(intf); + int i; + + for (i = 0; display_textmodes[i]; i++) { + if (sysfs_streq(display_textmodes[i], buf)) { + mydev->textmode = i; + update_display_visual(mydev); + return count; + } + } + + return -EINVAL; +} + +static DEVICE_ATTR(textmode, S_IWUGO | S_IRUGO, + show_attr_textmode, set_attr_textmode); + + +MYDEV_ATTR_SIMPLE_UNSIGNED(powered, update_display_powered); +MYDEV_ATTR_SIMPLE_UNSIGNED(mode_msb, update_display_mode); +MYDEV_ATTR_SIMPLE_UNSIGNED(mode_lsb, update_display_mode); + +static struct attribute *dev_attrs[] = { + &dev_attr_powered.attr, + &dev_attr_text.attr, + &dev_attr_textmode.attr, + &dev_attr_decimals.attr, + &dev_attr_mode_msb.attr, + &dev_attr_mode_lsb.attr, + NULL +}; + +static struct attribute_group dev_attr_grp = { + .attrs = dev_attrs, +}; + +static int sevseg_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + struct usb_device *udev = interface_to_usbdev(interface); + struct usb_sevsegdev *mydev = NULL; + int rc = -ENOMEM; + + mydev = kzalloc(sizeof(struct usb_sevsegdev), GFP_KERNEL); + if (mydev == NULL) { + dev_err(&interface->dev, "Out of memory\n"); + goto error_mem; + } + + mydev->udev = usb_get_dev(udev); + usb_set_intfdata(interface, mydev); + + /*set defaults */ + mydev->textmode = 0x02; /* ascii mode */ + mydev->mode_msb = 0x06; /* 6 characters */ + mydev->mode_lsb = 0x3f; /* scanmode for 6 chars */ + + rc = sysfs_create_group(&interface->dev.kobj, &dev_attr_grp); + if (rc) + goto error; + + dev_info(&interface->dev, "USB 7 Segment device now attached\n"); + return 0; + +error: + usb_set_intfdata(interface, NULL); + usb_put_dev(mydev->udev); + kfree(mydev); +error_mem: + return rc; +} + +static void sevseg_disconnect(struct usb_interface *interface) +{ + struct usb_sevsegdev *mydev; + + mydev = usb_get_intfdata(interface); + sysfs_remove_group(&interface->dev.kobj, &dev_attr_grp); + usb_set_intfdata(interface, NULL); + usb_put_dev(mydev->udev); + kfree(mydev); + dev_info(&interface->dev, "USB 7 Segment now disconnected\n"); +} + +static struct usb_driver sevseg_driver = { + .name = "usbsevseg", + .probe = sevseg_probe, + .disconnect = sevseg_disconnect, + .id_table = id_table, +}; + +static int __init usb_sevseg_init(void) +{ + int rc = 0; + + rc = usb_register(&sevseg_driver); + if (rc) + err("usb_register failed. Error number %d", rc); + return rc; +} + +static void __exit usb_sevseg_exit(void) +{ + usb_deregister(&sevseg_driver); +} + +module_init(usb_sevseg_init); +module_exit(usb_sevseg_exit); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index b358c4e1cf21..444c69c447be 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -1561,8 +1561,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf) if (code != USBTEST_REQUEST) return -EOPNOTSUPP; - if (param->iterations <= 0 || param->length < 0 - || param->sglen < 0 || param->vary < 0) + if (param->iterations <= 0) return -EINVAL; if (mutex_lock_interruptible(&dev->lock)) diff --git a/drivers/usb/misc/uss720.c b/drivers/usb/misc/uss720.c index f1255b0a182d..9a6c27a01793 100644 --- a/drivers/usb/misc/uss720.c +++ b/drivers/usb/misc/uss720.c @@ -228,11 +228,12 @@ static int get_1284_register(struct parport *pp, unsigned char reg, unsigned cha ret = rq->urb->status; *val = priv->reg[(reg >= 9) ? 0 : regindex[reg]]; if (ret) - warn("get_1284_register: usb error %d", ret); + printk(KERN_WARNING "get_1284_register: " + "usb error %d\n", ret); kref_put(&rq->ref_count, destroy_async); return ret; } - warn("get_1284_register timeout"); + printk(KERN_WARNING "get_1284_register timeout\n"); kill_all_async_requests_priv(priv); return -EIO; } @@ -716,7 +717,7 @@ static int uss720_probe(struct usb_interface *intf, spin_lock_init(&priv->asynclock); INIT_LIST_HEAD(&priv->asynclist); if (!(pp = parport_register_port(0, PARPORT_IRQ_NONE, PARPORT_DMA_NONE, &parport_uss720_ops))) { - warn("could not register parport"); + printk(KERN_WARNING "uss720: could not register parport\n"); goto probe_abort; } @@ -800,10 +801,14 @@ static int __init uss720_init(void) if (retval) goto out; - info(DRIVER_VERSION ":" DRIVER_DESC); - info("NOTE: this is a special purpose driver to allow nonstandard"); - info("protocols (eg. bitbang) over USS720 usb to parallel cables"); - info("If you just want to connect to a printer, use usblp instead"); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); + printk(KERN_INFO KBUILD_MODNAME ": NOTE: this is a special purpose " + "driver to allow nonstandard\n"); + printk(KERN_INFO KBUILD_MODNAME ": protocols (eg. bitbang) over " + "USS720 usb to parallel cables\n"); + printk(KERN_INFO KBUILD_MODNAME ": If you just want to connect to a " + "printer, use usblp instead\n"); out: return retval; } diff --git a/drivers/usb/misc/vstusb.c b/drivers/usb/misc/vstusb.c new file mode 100644 index 000000000000..8648470c81ca --- /dev/null +++ b/drivers/usb/misc/vstusb.c @@ -0,0 +1,782 @@ +/***************************************************************************** + * File: drivers/usb/misc/vstusb.c + * + * Purpose: Support for the bulk USB Vernier Spectrophotometers + * + * Author: Johnnie Peters + * Axian Consulting + * Beaverton, OR, USA 97005 + * + * Modified by: EQware Engineering, Inc. + * Oregon City, OR, USA 97045 + * + * Copyright: 2007, 2008 + * Vernier Software & Technology + * Beaverton, OR, USA 97005 + * + * Web: www.vernier.com + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + *****************************************************************************/ +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/uaccess.h> +#include <linux/usb.h> + +#include <linux/usb/vstusb.h> + +#define DRIVER_VERSION "VST USB Driver Version 1.5" +#define DRIVER_DESC "Vernier Software Technology Bulk USB Driver" + +#ifdef CONFIG_USB_DYNAMIC_MINORS + #define VSTUSB_MINOR_BASE 0 +#else + #define VSTUSB_MINOR_BASE 199 +#endif + +#define USB_VENDOR_OCEANOPTICS 0x2457 +#define USB_VENDOR_VERNIER 0x08F7 /* Vernier Software & Technology */ + +#define USB_PRODUCT_USB2000 0x1002 +#define USB_PRODUCT_ADC1000_FW 0x1003 /* firmware download (renumerates) */ +#define USB_PRODUCT_ADC1000 0x1004 +#define USB_PRODUCT_HR2000_FW 0x1009 /* firmware download (renumerates) */ +#define USB_PRODUCT_HR2000 0x100A +#define USB_PRODUCT_HR4000_FW 0x1011 /* firmware download (renumerates) */ +#define USB_PRODUCT_HR4000 0x1012 +#define USB_PRODUCT_USB650 0x1014 /* "Red Tide" */ +#define USB_PRODUCT_QE65000 0x1018 +#define USB_PRODUCT_USB4000 0x1022 +#define USB_PRODUCT_USB325 0x1024 /* "Vernier Spectrometer" */ + +#define USB_PRODUCT_LABPRO 0x0001 +#define USB_PRODUCT_LABQUEST 0x0005 + +#define VST_MAXBUFFER (64*1024) + +static struct usb_device_id id_table[] = { + { USB_DEVICE(USB_VENDOR_OCEANOPTICS, USB_PRODUCT_USB2000)}, + { USB_DEVICE(USB_VENDOR_OCEANOPTICS, USB_PRODUCT_HR4000)}, + { USB_DEVICE(USB_VENDOR_OCEANOPTICS, USB_PRODUCT_USB650)}, + { USB_DEVICE(USB_VENDOR_OCEANOPTICS, USB_PRODUCT_USB4000)}, + { USB_DEVICE(USB_VENDOR_OCEANOPTICS, USB_PRODUCT_USB325)}, + { USB_DEVICE(USB_VENDOR_VERNIER, USB_PRODUCT_LABQUEST)}, + { USB_DEVICE(USB_VENDOR_VERNIER, USB_PRODUCT_LABPRO)}, + {}, +}; + +MODULE_DEVICE_TABLE(usb, id_table); + +struct vstusb_device { + struct kref kref; + struct mutex lock; + struct usb_device *usb_dev; + char present; + char isopen; + struct usb_anchor submitted; + int rd_pipe; + int rd_timeout_ms; + int wr_pipe; + int wr_timeout_ms; +}; +#define to_vst_dev(d) container_of(d, struct vstusb_device, kref) + +static struct usb_driver vstusb_driver; + +static void vstusb_delete(struct kref *kref) +{ + struct vstusb_device *vstdev = to_vst_dev(kref); + + usb_put_dev(vstdev->usb_dev); + kfree(vstdev); +} + +static int vstusb_open(struct inode *inode, struct file *file) +{ + struct vstusb_device *vstdev; + struct usb_interface *interface; + + interface = usb_find_interface(&vstusb_driver, iminor(inode)); + + if (!interface) { + printk(KERN_ERR KBUILD_MODNAME + ": %s - error, can't find device for minor %d\n", + __func__, iminor(inode)); + return -ENODEV; + } + + vstdev = usb_get_intfdata(interface); + + if (!vstdev) + return -ENODEV; + + /* lock this device */ + mutex_lock(&vstdev->lock); + + /* can only open one time */ + if ((!vstdev->present) || (vstdev->isopen)) { + mutex_unlock(&vstdev->lock); + return -EBUSY; + } + + /* increment our usage count */ + kref_get(&vstdev->kref); + + vstdev->isopen = 1; + + /* save device in the file's private structure */ + file->private_data = vstdev; + + dev_dbg(&vstdev->usb_dev->dev, "%s: opened\n", __func__); + + mutex_unlock(&vstdev->lock); + + return 0; +} + +static int vstusb_release(struct inode *inode, struct file *file) +{ + struct vstusb_device *vstdev; + + vstdev = file->private_data; + + if (vstdev == NULL) + return -ENODEV; + + mutex_lock(&vstdev->lock); + + vstdev->isopen = 0; + + dev_dbg(&vstdev->usb_dev->dev, "%s: released\n", __func__); + + mutex_unlock(&vstdev->lock); + + kref_put(&vstdev->kref, vstusb_delete); + + return 0; +} + +static void usb_api_blocking_completion(struct urb *urb) +{ + struct completion *completeit = urb->context; + + complete(completeit); +} + +static int vstusb_fill_and_send_urb(struct urb *urb, + struct usb_device *usb_dev, + unsigned int pipe, void *data, + unsigned int len, struct completion *done) +{ + struct usb_host_endpoint *ep; + struct usb_host_endpoint **hostep; + unsigned int pipend; + + int status; + + hostep = usb_pipein(pipe) ? usb_dev->ep_in : usb_dev->ep_out; + pipend = usb_pipeendpoint(pipe); + ep = hostep[pipend]; + + if (!ep || (len == 0)) + return -EINVAL; + + if ((ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) + == USB_ENDPOINT_XFER_INT) { + pipe = (pipe & ~(3 << 30)) | (PIPE_INTERRUPT << 30); + usb_fill_int_urb(urb, usb_dev, pipe, data, len, + (usb_complete_t)usb_api_blocking_completion, + NULL, ep->desc.bInterval); + } else + usb_fill_bulk_urb(urb, usb_dev, pipe, data, len, + (usb_complete_t)usb_api_blocking_completion, + NULL); + + init_completion(done); + urb->context = done; + urb->actual_length = 0; + status = usb_submit_urb(urb, GFP_KERNEL); + + return status; +} + +static int vstusb_complete_urb(struct urb *urb, struct completion *done, + int timeout, int *actual_length) +{ + unsigned long expire; + int status; + + expire = timeout ? msecs_to_jiffies(timeout) : MAX_SCHEDULE_TIMEOUT; + if (!wait_for_completion_interruptible_timeout(done, expire)) { + usb_kill_urb(urb); + status = urb->status == -ENOENT ? -ETIMEDOUT : urb->status; + + dev_dbg(&urb->dev->dev, + "%s timed out on ep%d%s len=%d/%d, urb status = %d\n", + current->comm, + usb_pipeendpoint(urb->pipe), + usb_pipein(urb->pipe) ? "in" : "out", + urb->actual_length, + urb->transfer_buffer_length, + urb->status); + + } else { + if (signal_pending(current)) { + /* if really an error */ + if (urb->status && !((urb->status == -ENOENT) || + (urb->status == -ECONNRESET) || + (urb->status == -ESHUTDOWN))) { + status = -EINTR; + usb_kill_urb(urb); + } else { + status = 0; + } + + dev_dbg(&urb->dev->dev, + "%s: signal pending on ep%d%s len=%d/%d," + "urb status = %d\n", + current->comm, + usb_pipeendpoint(urb->pipe), + usb_pipein(urb->pipe) ? "in" : "out", + urb->actual_length, + urb->transfer_buffer_length, + urb->status); + + } else { + status = urb->status; + } + } + + if (actual_length) + *actual_length = urb->actual_length; + + return status; +} + +static ssize_t vstusb_read(struct file *file, char __user *buffer, + size_t count, loff_t *ppos) +{ + struct vstusb_device *vstdev; + int cnt = -1; + void *buf; + int retval = 0; + + struct urb *urb; + struct usb_device *dev; + unsigned int pipe; + int timeout; + + DECLARE_COMPLETION_ONSTACK(done); + + vstdev = file->private_data; + + if (vstdev == NULL) + return -ENODEV; + + /* verify that we actually want to read some data */ + if ((count == 0) || (count > VST_MAXBUFFER)) + return -EINVAL; + + /* lock this object */ + if (mutex_lock_interruptible(&vstdev->lock)) + return -ERESTARTSYS; + + /* anyone home */ + if (!vstdev->present) { + mutex_unlock(&vstdev->lock); + printk(KERN_ERR KBUILD_MODNAME + ": %s: device not present\n", __func__); + return -ENODEV; + } + + /* pull out the necessary data */ + dev = vstdev->usb_dev; + pipe = usb_rcvbulkpipe(dev, vstdev->rd_pipe); + timeout = vstdev->rd_timeout_ms; + + buf = kmalloc(count, GFP_KERNEL); + if (buf == NULL) { + mutex_unlock(&vstdev->lock); + return -ENOMEM; + } + + urb = usb_alloc_urb(0, GFP_KERNEL); + if (!urb) { + kfree(buf); + mutex_unlock(&vstdev->lock); + return -ENOMEM; + } + + usb_anchor_urb(urb, &vstdev->submitted); + retval = vstusb_fill_and_send_urb(urb, dev, pipe, buf, count, &done); + mutex_unlock(&vstdev->lock); + if (retval) { + usb_unanchor_urb(urb); + dev_err(&dev->dev, "%s: error %d filling and sending urb %d\n", + __func__, retval, pipe); + goto exit; + } + + retval = vstusb_complete_urb(urb, &done, timeout, &cnt); + if (retval) { + dev_err(&dev->dev, "%s: error %d completing urb %d\n", + __func__, retval, pipe); + goto exit; + } + + if (copy_to_user(buffer, buf, cnt)) { + dev_err(&dev->dev, "%s: can't copy_to_user\n", __func__); + retval = -EFAULT; + } else { + retval = cnt; + dev_dbg(&dev->dev, "%s: read %d bytes from pipe %d\n", + __func__, cnt, pipe); + } + +exit: + usb_free_urb(urb); + kfree(buf); + return retval; +} + +static ssize_t vstusb_write(struct file *file, const char __user *buffer, + size_t count, loff_t *ppos) +{ + struct vstusb_device *vstdev; + int cnt = -1; + void *buf; + int retval = 0; + + struct urb *urb; + struct usb_device *dev; + unsigned int pipe; + int timeout; + + DECLARE_COMPLETION_ONSTACK(done); + + vstdev = file->private_data; + + if (vstdev == NULL) + return -ENODEV; + + /* verify that we actually have some data to write */ + if ((count == 0) || (count > VST_MAXBUFFER)) + return retval; + + /* lock this object */ + if (mutex_lock_interruptible(&vstdev->lock)) + return -ERESTARTSYS; + + /* anyone home */ + if (!vstdev->present) { + mutex_unlock(&vstdev->lock); + printk(KERN_ERR KBUILD_MODNAME + ": %s: device not present\n", __func__); + return -ENODEV; + } + + /* pull out the necessary data */ + dev = vstdev->usb_dev; + pipe = usb_sndbulkpipe(dev, vstdev->wr_pipe); + timeout = vstdev->wr_timeout_ms; + + buf = kmalloc(count, GFP_KERNEL); + if (buf == NULL) { + mutex_unlock(&vstdev->lock); + return -ENOMEM; + } + + urb = usb_alloc_urb(0, GFP_KERNEL); + if (!urb) { + kfree(buf); + mutex_unlock(&vstdev->lock); + return -ENOMEM; + } + + if (copy_from_user(buf, buffer, count)) { + dev_err(&dev->dev, "%s: can't copy_from_user\n", __func__); + retval = -EFAULT; + goto exit; + } + + usb_anchor_urb(urb, &vstdev->submitted); + retval = vstusb_fill_and_send_urb(urb, dev, pipe, buf, count, &done); + mutex_unlock(&vstdev->lock); + if (retval) { + usb_unanchor_urb(urb); + dev_err(&dev->dev, "%s: error %d filling and sending urb %d\n", + __func__, retval, pipe); + goto exit; + } + + retval = vstusb_complete_urb(urb, &done, timeout, &cnt); + if (retval) { + dev_err(&dev->dev, "%s: error %d completing urb %d\n", + __func__, retval, pipe); + goto exit; + } else { + retval = cnt; + dev_dbg(&dev->dev, "%s: sent %d bytes to pipe %d\n", + __func__, cnt, pipe); + } + +exit: + usb_free_urb(urb); + kfree(buf); + return retval; +} + +static long vstusb_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +{ + int retval = 0; + int cnt = -1; + void __user *data = (void __user *)arg; + struct vstusb_args usb_data; + + struct vstusb_device *vstdev; + void *buffer = NULL; /* must be initialized. buffer is + * referenced on exit but not all + * ioctls allocate it */ + + struct urb *urb = NULL; /* must be initialized. urb is + * referenced on exit but not all + * ioctls allocate it */ + struct usb_device *dev; + unsigned int pipe; + int timeout; + + DECLARE_COMPLETION_ONSTACK(done); + + vstdev = file->private_data; + + if (_IOC_TYPE(cmd) != VST_IOC_MAGIC) { + dev_warn(&vstdev->usb_dev->dev, + "%s: ioctl command %x, bad ioctl magic %x, " + "expected %x\n", __func__, cmd, + _IOC_TYPE(cmd), VST_IOC_MAGIC); + return -EINVAL; + } + + if (vstdev == NULL) + return -ENODEV; + + if (copy_from_user(&usb_data, data, sizeof(struct vstusb_args))) { + dev_err(&vstdev->usb_dev->dev, "%s: can't copy_from_user\n", + __func__); + return -EFAULT; + } + + /* lock this object */ + if (mutex_lock_interruptible(&vstdev->lock)) { + retval = -ERESTARTSYS; + goto exit; + } + + /* anyone home */ + if (!vstdev->present) { + mutex_unlock(&vstdev->lock); + dev_err(&vstdev->usb_dev->dev, "%s: device not present\n", + __func__); + retval = -ENODEV; + goto exit; + } + + /* pull out the necessary data */ + dev = vstdev->usb_dev; + + switch (cmd) { + + case IOCTL_VSTUSB_CONFIG_RW: + + vstdev->rd_pipe = usb_data.rd_pipe; + vstdev->rd_timeout_ms = usb_data.rd_timeout_ms; + vstdev->wr_pipe = usb_data.wr_pipe; + vstdev->wr_timeout_ms = usb_data.wr_timeout_ms; + + mutex_unlock(&vstdev->lock); + + dev_dbg(&dev->dev, "%s: setting pipes/timeouts, " + "rdpipe = %d, rdtimeout = %d, " + "wrpipe = %d, wrtimeout = %d\n", __func__, + vstdev->rd_pipe, vstdev->rd_timeout_ms, + vstdev->wr_pipe, vstdev->wr_timeout_ms); + break; + + case IOCTL_VSTUSB_SEND_PIPE: + + if ((usb_data.count == 0) || (usb_data.count > VST_MAXBUFFER)) { + mutex_unlock(&vstdev->lock); + retval = -EINVAL; + goto exit; + } + + buffer = kmalloc(usb_data.count, GFP_KERNEL); + if (buffer == NULL) { + mutex_unlock(&vstdev->lock); + retval = -ENOMEM; + goto exit; + } + + urb = usb_alloc_urb(0, GFP_KERNEL); + if (!urb) { + mutex_unlock(&vstdev->lock); + retval = -ENOMEM; + goto exit; + } + + timeout = usb_data.timeout_ms; + + pipe = usb_sndbulkpipe(dev, usb_data.pipe); + + if (copy_from_user(buffer, usb_data.buffer, usb_data.count)) { + dev_err(&dev->dev, "%s: can't copy_from_user\n", + __func__); + mutex_unlock(&vstdev->lock); + retval = -EFAULT; + goto exit; + } + + usb_anchor_urb(urb, &vstdev->submitted); + retval = vstusb_fill_and_send_urb(urb, dev, pipe, buffer, + usb_data.count, &done); + mutex_unlock(&vstdev->lock); + if (retval) { + usb_unanchor_urb(urb); + dev_err(&dev->dev, + "%s: error %d filling and sending urb %d\n", + __func__, retval, pipe); + goto exit; + } + + retval = vstusb_complete_urb(urb, &done, timeout, &cnt); + if (retval) { + dev_err(&dev->dev, "%s: error %d completing urb %d\n", + __func__, retval, pipe); + } + + break; + case IOCTL_VSTUSB_RECV_PIPE: + + if ((usb_data.count == 0) || (usb_data.count > VST_MAXBUFFER)) { + mutex_unlock(&vstdev->lock); + retval = -EINVAL; + goto exit; + } + + buffer = kmalloc(usb_data.count, GFP_KERNEL); + if (buffer == NULL) { + mutex_unlock(&vstdev->lock); + retval = -ENOMEM; + goto exit; + } + + urb = usb_alloc_urb(0, GFP_KERNEL); + if (!urb) { + mutex_unlock(&vstdev->lock); + retval = -ENOMEM; + goto exit; + } + + timeout = usb_data.timeout_ms; + + pipe = usb_rcvbulkpipe(dev, usb_data.pipe); + + usb_anchor_urb(urb, &vstdev->submitted); + retval = vstusb_fill_and_send_urb(urb, dev, pipe, buffer, + usb_data.count, &done); + mutex_unlock(&vstdev->lock); + if (retval) { + usb_unanchor_urb(urb); + dev_err(&dev->dev, + "%s: error %d filling and sending urb %d\n", + __func__, retval, pipe); + goto exit; + } + + retval = vstusb_complete_urb(urb, &done, timeout, &cnt); + if (retval) { + dev_err(&dev->dev, "%s: error %d completing urb %d\n", + __func__, retval, pipe); + goto exit; + } + + if (copy_to_user(usb_data.buffer, buffer, cnt)) { + dev_err(&dev->dev, "%s: can't copy_to_user\n", + __func__); + retval = -EFAULT; + goto exit; + } + + usb_data.count = cnt; + if (copy_to_user(data, &usb_data, sizeof(struct vstusb_args))) { + dev_err(&dev->dev, "%s: can't copy_to_user\n", + __func__); + retval = -EFAULT; + } else { + dev_dbg(&dev->dev, "%s: recv %d bytes from pipe %d\n", + __func__, usb_data.count, usb_data.pipe); + } + + break; + + default: + mutex_unlock(&vstdev->lock); + dev_warn(&dev->dev, "ioctl_vstusb: invalid ioctl cmd %x\n", + cmd); + return -EINVAL; + break; + } +exit: + usb_free_urb(urb); + kfree(buffer); + return retval; +} + +static const struct file_operations vstusb_fops = { + .owner = THIS_MODULE, + .read = vstusb_read, + .write = vstusb_write, + .unlocked_ioctl = vstusb_ioctl, + .compat_ioctl = vstusb_ioctl, + .open = vstusb_open, + .release = vstusb_release, +}; + +static struct usb_class_driver usb_vstusb_class = { + .name = "usb/vstusb%d", + .fops = &vstusb_fops, + .minor_base = VSTUSB_MINOR_BASE, +}; + +static int vstusb_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct usb_device *dev = interface_to_usbdev(intf); + struct vstusb_device *vstdev; + int i; + int retval = 0; + + /* allocate memory for our device state and intialize it */ + + vstdev = kzalloc(sizeof(*vstdev), GFP_KERNEL); + if (vstdev == NULL) + return -ENOMEM; + + /* must do usb_get_dev() prior to kref_init() since the kref_put() + * release function will do a usb_put_dev() */ + usb_get_dev(dev); + kref_init(&vstdev->kref); + mutex_init(&vstdev->lock); + + i = dev->descriptor.bcdDevice; + + dev_dbg(&intf->dev, "Version %1d%1d.%1d%1d found at address %d\n", + (i & 0xF000) >> 12, (i & 0xF00) >> 8, + (i & 0xF0) >> 4, (i & 0xF), dev->devnum); + + vstdev->present = 1; + vstdev->isopen = 0; + vstdev->usb_dev = dev; + init_usb_anchor(&vstdev->submitted); + + usb_set_intfdata(intf, vstdev); + retval = usb_register_dev(intf, &usb_vstusb_class); + if (retval) { + dev_err(&intf->dev, + "%s: Not able to get a minor for this device.\n", + __func__); + usb_set_intfdata(intf, NULL); + kref_put(&vstdev->kref, vstusb_delete); + return retval; + } + + /* let the user know what node this device is now attached to */ + dev_info(&intf->dev, + "VST USB Device #%d now attached to major %d minor %d\n", + (intf->minor - VSTUSB_MINOR_BASE), USB_MAJOR, intf->minor); + + dev_info(&intf->dev, "%s, %s\n", DRIVER_DESC, DRIVER_VERSION); + + return retval; +} + +static void vstusb_disconnect(struct usb_interface *intf) +{ + struct vstusb_device *vstdev = usb_get_intfdata(intf); + + usb_deregister_dev(intf, &usb_vstusb_class); + usb_set_intfdata(intf, NULL); + + if (vstdev) { + + mutex_lock(&vstdev->lock); + vstdev->present = 0; + + usb_kill_anchored_urbs(&vstdev->submitted); + + mutex_unlock(&vstdev->lock); + + kref_put(&vstdev->kref, vstusb_delete); + } + +} + +static int vstusb_suspend(struct usb_interface *intf, pm_message_t message) +{ + struct vstusb_device *vstdev = usb_get_intfdata(intf); + int time; + if (!vstdev) + return 0; + + mutex_lock(&vstdev->lock); + time = usb_wait_anchor_empty_timeout(&vstdev->submitted, 1000); + if (!time) + usb_kill_anchored_urbs(&vstdev->submitted); + mutex_unlock(&vstdev->lock); + + return 0; +} + +static int vstusb_resume(struct usb_interface *intf) +{ + return 0; +} + +static struct usb_driver vstusb_driver = { + .name = "vstusb", + .probe = vstusb_probe, + .disconnect = vstusb_disconnect, + .suspend = vstusb_suspend, + .resume = vstusb_resume, + .id_table = id_table, +}; + +static int __init vstusb_init(void) +{ + int rc; + + rc = usb_register(&vstusb_driver); + if (rc) + printk(KERN_ERR "%s: failed to register (%d)", __func__, rc); + + return rc; +} + +static void __exit vstusb_exit(void) +{ + usb_deregister(&vstusb_driver); +} + +module_init(vstusb_init); +module_exit(vstusb_exit); + +MODULE_AUTHOR("Dennis O'Brien/Stephen Ware"); +MODULE_DESCRIPTION(DRIVER_VERSION); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/mon/mon_main.c b/drivers/usb/mon/mon_main.c index 442d8076b201..5e0ab4201c00 100644 --- a/drivers/usb/mon/mon_main.c +++ b/drivers/usb/mon/mon_main.c @@ -361,12 +361,12 @@ static int __init mon_init(void) } // MOD_INC_USE_COUNT(which_module?); - usb_register_notify(&mon_nb); mutex_lock(&usb_bus_list_lock); list_for_each_entry (ubus, &usb_bus_list, bus_list) { mon_bus_init(ubus); } + usb_register_notify(&mon_nb); mutex_unlock(&usb_bus_list_lock); return 0; diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig index 58b2b8fc9439..4b9542bbb35c 100644 --- a/drivers/usb/musb/Kconfig +++ b/drivers/usb/musb/Kconfig @@ -33,10 +33,6 @@ config USB_MUSB_SOC default y if ARCH_DAVINCI default y if ARCH_OMAP2430 default y if ARCH_OMAP34XX - help - Use a static <asm/arch/hdrc_cnf.h> file to describe how the - controller is configured (endpoints, mechanisms, etc) on the - current iteration of a given system-on-chip. comment "DaVinci 644x USB support" depends on USB_MUSB_HDRC && ARCH_DAVINCI diff --git a/drivers/usb/musb/cppi_dma.h b/drivers/usb/musb/cppi_dma.h index fc5216b5d2c5..729b4071787b 100644 --- a/drivers/usb/musb/cppi_dma.h +++ b/drivers/usb/musb/cppi_dma.h @@ -119,8 +119,8 @@ struct cppi { void __iomem *mregs; /* Mentor regs */ void __iomem *tibase; /* TI/CPPI regs */ - struct cppi_channel tx[MUSB_C_NUM_EPT - 1]; - struct cppi_channel rx[MUSB_C_NUM_EPR - 1]; + struct cppi_channel tx[4]; + struct cppi_channel rx[4]; struct dma_pool *pool; diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c index 75baf181a8cd..dfb3bcbe00fc 100644 --- a/drivers/usb/musb/davinci.c +++ b/drivers/usb/musb/davinci.c @@ -30,6 +30,7 @@ #include <linux/delay.h> #include <linux/clk.h> #include <linux/io.h> +#include <linux/gpio.h> #include <asm/arch/hardware.h> #include <asm/arch/memory.h> @@ -39,7 +40,7 @@ #include "musb_core.h" #ifdef CONFIG_MACH_DAVINCI_EVM -#include <asm/arch/i2c-client.h> +#define GPIO_nVBUS_DRV 87 #endif #include "davinci.h" @@ -138,7 +139,6 @@ static int vbus_state = -1; /* VBUS SWITCHING IS BOARD-SPECIFIC */ #ifdef CONFIG_MACH_DAVINCI_EVM -#ifndef CONFIG_MACH_DAVINCI_EVM_OTG /* I2C operations are always synchronous, and require a task context. * With unloaded systems, using the shared workqueue seems to suffice @@ -146,12 +146,11 @@ static int vbus_state = -1; */ static void evm_deferred_drvvbus(struct work_struct *ignored) { - davinci_i2c_expander_op(0x3a, USB_DRVVBUS, vbus_state); + gpio_set_value_cansleep(GPIO_nVBUS_DRV, vbus_state); vbus_state = !vbus_state; } static DECLARE_WORK(evm_vbus_work, evm_deferred_drvvbus); -#endif /* modified board */ #endif /* EVM */ static void davinci_source_power(struct musb *musb, int is_on, int immediate) @@ -165,21 +164,10 @@ static void davinci_source_power(struct musb *musb, int is_on, int immediate) #ifdef CONFIG_MACH_DAVINCI_EVM if (machine_is_davinci_evm()) { -#ifdef CONFIG_MACH_DAVINCI_EVM_OTG - /* modified EVM board switching VBUS with GPIO(6) not I2C - * NOTE: PINMUX0.RGB888 (bit23) must be clear - */ - if (is_on) - gpio_set(GPIO(6)); - else - gpio_clear(GPIO(6)); - immediate = 1; -#else if (immediate) - davinci_i2c_expander_op(0x3a, USB_DRVVBUS, !is_on); + gpio_set_value_cansleep(GPIO_nVBUS_DRV, vbus_state); else schedule_work(&evm_vbus_work); -#endif } #endif if (immediate) diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 128e949db47c..4a35745b30be 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -82,9 +82,9 @@ /* * This gets many kinds of configuration information: * - Kconfig for everything user-configurable - * - <asm/arch/hdrc_cnf.h> for SOC or family details * - platform_device for addressing, irq, and platform_data * - platform_data is mostly for board-specific informarion + * (plus recentrly, SOC or family details) * * Most of the conditional compilation will (someday) vanish. */ @@ -974,9 +974,9 @@ static void musb_shutdown(struct platform_device *pdev) /* * The silicon either has hard-wired endpoint configurations, or else * "dynamic fifo" sizing. The driver has support for both, though at this - * writing only the dynamic sizing is very well tested. We use normal - * idioms to so both modes are compile-tested, but dead code elimination - * leaves only the relevant one in the object file. + * writing only the dynamic sizing is very well tested. Since we switched + * away from compile-time hardware parameters, we can no longer rely on + * dead code elimination to leave only the relevant one in the object file. * * We don't currently use dynamic fifo setup capability to do anything * more than selecting one of a bunch of predefined configurations. @@ -1806,6 +1806,7 @@ allocate_instance(struct device *dev, musb->ctrl_base = mbase; musb->nIrq = -ENODEV; musb->config = config; + BUG_ON(musb->config->num_eps > MUSB_C_NUM_EPS); for (epnum = 0, ep = musb->endpoints; epnum < musb->config->num_eps; epnum++, ep++) { @@ -2054,15 +2055,6 @@ bad_config: } - return 0; - -fail: - if (musb->clock) - clk_put(musb->clock); - device_init_wakeup(dev, 0); - musb_free(musb); - return status; - #ifdef CONFIG_SYSFS status = device_create_file(dev, &dev_attr_mode); status = device_create_file(dev, &dev_attr_vbus); @@ -2071,12 +2063,31 @@ fail: #endif /* CONFIG_USB_GADGET_MUSB_HDRC */ status = 0; #endif + if (status) + goto fail2; - return status; + return 0; fail2: +#ifdef CONFIG_SYSFS + device_remove_file(musb->controller, &dev_attr_mode); + device_remove_file(musb->controller, &dev_attr_vbus); +#ifdef CONFIG_USB_MUSB_OTG + device_remove_file(musb->controller, &dev_attr_srp); +#endif +#endif musb_platform_exit(musb); - goto fail; +fail: + dev_err(musb->controller, + "musb_init_controller failed with status %d\n", status); + + if (musb->clock) + clk_put(musb->clock); + device_init_wakeup(dev, 0); + musb_free(musb); + + return status; + } /*-------------------------------------------------------------------------*/ diff --git a/drivers/usb/musb/musb_gadget_ep0.c b/drivers/usb/musb/musb_gadget_ep0.c index a57652fff39c..3f5e30ddfa27 100644 --- a/drivers/usb/musb/musb_gadget_ep0.c +++ b/drivers/usb/musb/musb_gadget_ep0.c @@ -437,7 +437,7 @@ static void ep0_rxstate(struct musb *musb) { void __iomem *regs = musb->control_ep->regs; struct usb_request *req; - u16 tmp; + u16 count, csr; req = next_ep0_request(musb); @@ -449,35 +449,35 @@ static void ep0_rxstate(struct musb *musb) unsigned len = req->length - req->actual; /* read the buffer */ - tmp = musb_readb(regs, MUSB_COUNT0); - if (tmp > len) { + count = musb_readb(regs, MUSB_COUNT0); + if (count > len) { req->status = -EOVERFLOW; - tmp = len; + count = len; } - musb_read_fifo(&musb->endpoints[0], tmp, buf); - req->actual += tmp; - tmp = MUSB_CSR0_P_SVDRXPKTRDY; - if (tmp < 64 || req->actual == req->length) { + musb_read_fifo(&musb->endpoints[0], count, buf); + req->actual += count; + csr = MUSB_CSR0_P_SVDRXPKTRDY; + if (count < 64 || req->actual == req->length) { musb->ep0_state = MUSB_EP0_STAGE_STATUSIN; - tmp |= MUSB_CSR0_P_DATAEND; + csr |= MUSB_CSR0_P_DATAEND; } else req = NULL; } else - tmp = MUSB_CSR0_P_SVDRXPKTRDY | MUSB_CSR0_P_SENDSTALL; + csr = MUSB_CSR0_P_SVDRXPKTRDY | MUSB_CSR0_P_SENDSTALL; /* Completion handler may choose to stall, e.g. because the * message just received holds invalid data. */ if (req) { - musb->ackpend = tmp; + musb->ackpend = csr; musb_g_ep0_giveback(musb, req); if (!musb->ackpend) return; musb->ackpend = 0; } musb_ep_select(musb->mregs, 0); - musb_writew(regs, MUSB_CSR0, tmp); + musb_writew(regs, MUSB_CSR0, csr); } /* diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 8b4be012669a..3133990f04ec 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -108,7 +108,7 @@ static void musb_ep_program(struct musb *musb, u8 epnum, /* * Clear TX fifo. Needed to avoid BABBLE errors. */ -static inline void musb_h_tx_flush_fifo(struct musb_hw_ep *ep) +static void musb_h_tx_flush_fifo(struct musb_hw_ep *ep) { void __iomem *epio = ep->regs; u16 csr; @@ -291,6 +291,7 @@ __acquires(musb->lock) urb->actual_length, urb->transfer_buffer_length ); + usb_hcd_unlink_urb_from_ep(musb_to_hcd(musb), urb); spin_unlock(&musb->lock); usb_hcd_giveback_urb(musb_to_hcd(musb), urb, status); spin_lock(&musb->lock); @@ -353,8 +354,6 @@ musb_giveback(struct musb_qh *qh, struct urb *urb, int status) break; } - usb_hcd_unlink_urb_from_ep(musb_to_hcd(musb), urb); - qh->is_ready = 0; __musb_giveback(musb, urb, status); qh->is_ready = ready; @@ -436,7 +435,7 @@ musb_advance_schedule(struct musb *musb, struct urb *urb, } } -static inline u16 musb_h_flush_rxfifo(struct musb_hw_ep *hw_ep, u16 csr) +static u16 musb_h_flush_rxfifo(struct musb_hw_ep *hw_ep, u16 csr) { /* we don't want fifo to fill itself again; * ignore dma (various models), @@ -1005,7 +1004,7 @@ static bool musb_h_ep0_continue(struct musb *musb, u16 len, struct urb *urb) /* * Handle default endpoint interrupt as host. Only called in IRQ time - * from the LinuxIsr() interrupt service routine. + * from musb_interrupt(). * * called with controller irqlocked */ @@ -1791,7 +1790,9 @@ static int musb_urb_enqueue( */ qh = kzalloc(sizeof *qh, mem_flags); if (!qh) { + spin_lock_irqsave(&musb->lock, flags); usb_hcd_unlink_urb_from_ep(hcd, urb); + spin_unlock_irqrestore(&musb->lock, flags); return -ENOMEM; } @@ -1873,7 +1874,11 @@ static int musb_urb_enqueue( /* set up tt info if needed */ if (urb->dev->tt) { qh->h_port_reg = (u8) urb->dev->ttport; - qh->h_addr_reg |= 0x80; + if (urb->dev->tt->hub) + qh->h_addr_reg = + (u8) urb->dev->tt->hub->devnum; + if (urb->dev->tt->multi) + qh->h_addr_reg |= 0x80; } } } @@ -1903,7 +1908,9 @@ static int musb_urb_enqueue( done: if (ret != 0) { + spin_lock_irqsave(&musb->lock, flags); usb_hcd_unlink_urb_from_ep(hcd, urb); + spin_unlock_irqrestore(&musb->lock, flags); kfree(qh); } return ret; diff --git a/drivers/usb/musb/musb_io.h b/drivers/usb/musb/musb_io.h index 6bbedae83af8..223f0a514094 100644 --- a/drivers/usb/musb/musb_io.h +++ b/drivers/usb/musb/musb_io.h @@ -37,7 +37,9 @@ #include <linux/io.h> -#ifndef CONFIG_ARM +#if !defined(CONFIG_ARM) && !defined(CONFIG_SUPERH) \ + && !defined(CONFIG_AVR32) && !defined(CONFIG_PPC32) \ + && !defined(CONFIG_PPC64) static inline void readsl(const void __iomem *addr, void *buf, int len) { insl((unsigned long)addr, buf, len); } static inline void readsw(const void __iomem *addr, void *buf, int len) diff --git a/drivers/usb/musb/musbhsdma.c b/drivers/usb/musb/musbhsdma.c index 9ba8fb7fcd24..8c734ef2c1ed 100644 --- a/drivers/usb/musb/musbhsdma.c +++ b/drivers/usb/musb/musbhsdma.c @@ -45,8 +45,8 @@ #define MUSB_HSDMA_ADDRESS 0x8 #define MUSB_HSDMA_COUNT 0xc -#define MUSB_HSDMA_CHANNEL_OFFSET(_bChannel, _offset) \ - (MUSB_HSDMA_BASE + (_bChannel << 4) + _offset) +#define MUSB_HSDMA_CHANNEL_OFFSET(_bchannel, _offset) \ + (MUSB_HSDMA_BASE + (_bchannel << 4) + _offset) /* control register (16-bit): */ #define MUSB_HSDMA_ENABLE_SHIFT 0 @@ -67,23 +67,23 @@ struct musb_dma_controller; struct musb_dma_channel { - struct dma_channel Channel; + struct dma_channel channel; struct musb_dma_controller *controller; - u32 dwStartAddress; + u32 start_addr; u32 len; - u16 wMaxPacketSize; - u8 bIndex; + u16 max_packet_sz; + u8 idx; u8 epnum; u8 transmit; }; struct musb_dma_controller { - struct dma_controller Controller; - struct musb_dma_channel aChannel[MUSB_HSDMA_CHANNELS]; - void *pDmaPrivate; - void __iomem *pCoreBase; - u8 bChannelCount; - u8 bmUsedChannels; + struct dma_controller controller; + struct musb_dma_channel channel[MUSB_HSDMA_CHANNELS]; + void *private_data; + void __iomem *base; + u8 channel_count; + u8 used_channels; u8 irq; }; @@ -93,91 +93,91 @@ static int dma_controller_start(struct dma_controller *c) return 0; } -static void dma_channel_release(struct dma_channel *pChannel); +static void dma_channel_release(struct dma_channel *channel); static int dma_controller_stop(struct dma_controller *c) { - struct musb_dma_controller *controller = - container_of(c, struct musb_dma_controller, Controller); - struct musb *musb = (struct musb *) controller->pDmaPrivate; - struct dma_channel *pChannel; - u8 bBit; + struct musb_dma_controller *controller = container_of(c, + struct musb_dma_controller, controller); + struct musb *musb = controller->private_data; + struct dma_channel *channel; + u8 bit; - if (controller->bmUsedChannels != 0) { + if (controller->used_channels != 0) { dev_err(musb->controller, "Stopping DMA controller while channel active\n"); - for (bBit = 0; bBit < MUSB_HSDMA_CHANNELS; bBit++) { - if (controller->bmUsedChannels & (1 << bBit)) { - pChannel = &controller->aChannel[bBit].Channel; - dma_channel_release(pChannel); + for (bit = 0; bit < MUSB_HSDMA_CHANNELS; bit++) { + if (controller->used_channels & (1 << bit)) { + channel = &controller->channel[bit].channel; + dma_channel_release(channel); - if (!controller->bmUsedChannels) + if (!controller->used_channels) break; } } } + return 0; } static struct dma_channel *dma_channel_allocate(struct dma_controller *c, struct musb_hw_ep *hw_ep, u8 transmit) { - u8 bBit; - struct dma_channel *pChannel = NULL; - struct musb_dma_channel *pImplChannel = NULL; - struct musb_dma_controller *controller = - container_of(c, struct musb_dma_controller, Controller); - - for (bBit = 0; bBit < MUSB_HSDMA_CHANNELS; bBit++) { - if (!(controller->bmUsedChannels & (1 << bBit))) { - controller->bmUsedChannels |= (1 << bBit); - pImplChannel = &(controller->aChannel[bBit]); - pImplChannel->controller = controller; - pImplChannel->bIndex = bBit; - pImplChannel->epnum = hw_ep->epnum; - pImplChannel->transmit = transmit; - pChannel = &(pImplChannel->Channel); - pChannel->private_data = pImplChannel; - pChannel->status = MUSB_DMA_STATUS_FREE; - pChannel->max_len = 0x10000; + struct musb_dma_controller *controller = container_of(c, + struct musb_dma_controller, controller); + struct musb_dma_channel *musb_channel = NULL; + struct dma_channel *channel = NULL; + u8 bit; + + for (bit = 0; bit < MUSB_HSDMA_CHANNELS; bit++) { + if (!(controller->used_channels & (1 << bit))) { + controller->used_channels |= (1 << bit); + musb_channel = &(controller->channel[bit]); + musb_channel->controller = controller; + musb_channel->idx = bit; + musb_channel->epnum = hw_ep->epnum; + musb_channel->transmit = transmit; + channel = &(musb_channel->channel); + channel->private_data = musb_channel; + channel->status = MUSB_DMA_STATUS_FREE; + channel->max_len = 0x10000; /* Tx => mode 1; Rx => mode 0 */ - pChannel->desired_mode = transmit; - pChannel->actual_len = 0; + channel->desired_mode = transmit; + channel->actual_len = 0; break; } } - return pChannel; + + return channel; } -static void dma_channel_release(struct dma_channel *pChannel) +static void dma_channel_release(struct dma_channel *channel) { - struct musb_dma_channel *pImplChannel = - (struct musb_dma_channel *) pChannel->private_data; + struct musb_dma_channel *musb_channel = channel->private_data; - pChannel->actual_len = 0; - pImplChannel->dwStartAddress = 0; - pImplChannel->len = 0; + channel->actual_len = 0; + musb_channel->start_addr = 0; + musb_channel->len = 0; - pImplChannel->controller->bmUsedChannels &= - ~(1 << pImplChannel->bIndex); + musb_channel->controller->used_channels &= + ~(1 << musb_channel->idx); - pChannel->status = MUSB_DMA_STATUS_UNKNOWN; + channel->status = MUSB_DMA_STATUS_UNKNOWN; } -static void configure_channel(struct dma_channel *pChannel, +static void configure_channel(struct dma_channel *channel, u16 packet_sz, u8 mode, dma_addr_t dma_addr, u32 len) { - struct musb_dma_channel *pImplChannel = - (struct musb_dma_channel *) pChannel->private_data; - struct musb_dma_controller *controller = pImplChannel->controller; - void __iomem *mbase = controller->pCoreBase; - u8 bChannel = pImplChannel->bIndex; + struct musb_dma_channel *musb_channel = channel->private_data; + struct musb_dma_controller *controller = musb_channel->controller; + void __iomem *mbase = controller->base; + u8 bchannel = musb_channel->idx; u16 csr = 0; DBG(4, "%p, pkt_sz %d, addr 0x%x, len %d, mode %d\n", - pChannel, packet_sz, dma_addr, len, mode); + channel, packet_sz, dma_addr, len, mode); if (mode) { csr |= 1 << MUSB_HSDMA_MODE1_SHIFT; @@ -195,180 +195,183 @@ static void configure_channel(struct dma_channel *pChannel, } } - csr |= (pImplChannel->epnum << MUSB_HSDMA_ENDPOINT_SHIFT) + csr |= (musb_channel->epnum << MUSB_HSDMA_ENDPOINT_SHIFT) | (1 << MUSB_HSDMA_ENABLE_SHIFT) | (1 << MUSB_HSDMA_IRQENABLE_SHIFT) - | (pImplChannel->transmit + | (musb_channel->transmit ? (1 << MUSB_HSDMA_TRANSMIT_SHIFT) : 0); /* address/count */ musb_writel(mbase, - MUSB_HSDMA_CHANNEL_OFFSET(bChannel, MUSB_HSDMA_ADDRESS), + MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_ADDRESS), dma_addr); musb_writel(mbase, - MUSB_HSDMA_CHANNEL_OFFSET(bChannel, MUSB_HSDMA_COUNT), + MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_COUNT), len); /* control (this should start things) */ musb_writew(mbase, - MUSB_HSDMA_CHANNEL_OFFSET(bChannel, MUSB_HSDMA_CONTROL), + MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_CONTROL), csr); } -static int dma_channel_program(struct dma_channel *pChannel, +static int dma_channel_program(struct dma_channel *channel, u16 packet_sz, u8 mode, dma_addr_t dma_addr, u32 len) { - struct musb_dma_channel *pImplChannel = - (struct musb_dma_channel *) pChannel->private_data; + struct musb_dma_channel *musb_channel = channel->private_data; DBG(2, "ep%d-%s pkt_sz %d, dma_addr 0x%x length %d, mode %d\n", - pImplChannel->epnum, - pImplChannel->transmit ? "Tx" : "Rx", + musb_channel->epnum, + musb_channel->transmit ? "Tx" : "Rx", packet_sz, dma_addr, len, mode); - BUG_ON(pChannel->status == MUSB_DMA_STATUS_UNKNOWN || - pChannel->status == MUSB_DMA_STATUS_BUSY); + BUG_ON(channel->status == MUSB_DMA_STATUS_UNKNOWN || + channel->status == MUSB_DMA_STATUS_BUSY); - pChannel->actual_len = 0; - pImplChannel->dwStartAddress = dma_addr; - pImplChannel->len = len; - pImplChannel->wMaxPacketSize = packet_sz; - pChannel->status = MUSB_DMA_STATUS_BUSY; + channel->actual_len = 0; + musb_channel->start_addr = dma_addr; + musb_channel->len = len; + musb_channel->max_packet_sz = packet_sz; + channel->status = MUSB_DMA_STATUS_BUSY; if ((mode == 1) && (len >= packet_sz)) - configure_channel(pChannel, packet_sz, 1, dma_addr, len); + configure_channel(channel, packet_sz, 1, dma_addr, len); else - configure_channel(pChannel, packet_sz, 0, dma_addr, len); + configure_channel(channel, packet_sz, 0, dma_addr, len); return true; } -static int dma_channel_abort(struct dma_channel *pChannel) +static int dma_channel_abort(struct dma_channel *channel) { - struct musb_dma_channel *pImplChannel = - (struct musb_dma_channel *) pChannel->private_data; - u8 bChannel = pImplChannel->bIndex; - void __iomem *mbase = pImplChannel->controller->pCoreBase; + struct musb_dma_channel *musb_channel = channel->private_data; + void __iomem *mbase = musb_channel->controller->base; + + u8 bchannel = musb_channel->idx; u16 csr; - if (pChannel->status == MUSB_DMA_STATUS_BUSY) { - if (pImplChannel->transmit) { + if (channel->status == MUSB_DMA_STATUS_BUSY) { + if (musb_channel->transmit) { csr = musb_readw(mbase, - MUSB_EP_OFFSET(pImplChannel->epnum, + MUSB_EP_OFFSET(musb_channel->epnum, MUSB_TXCSR)); csr &= ~(MUSB_TXCSR_AUTOSET | MUSB_TXCSR_DMAENAB | MUSB_TXCSR_DMAMODE); musb_writew(mbase, - MUSB_EP_OFFSET(pImplChannel->epnum, - MUSB_TXCSR), + MUSB_EP_OFFSET(musb_channel->epnum, MUSB_TXCSR), csr); } else { csr = musb_readw(mbase, - MUSB_EP_OFFSET(pImplChannel->epnum, + MUSB_EP_OFFSET(musb_channel->epnum, MUSB_RXCSR)); csr &= ~(MUSB_RXCSR_AUTOCLEAR | MUSB_RXCSR_DMAENAB | MUSB_RXCSR_DMAMODE); musb_writew(mbase, - MUSB_EP_OFFSET(pImplChannel->epnum, - MUSB_RXCSR), + MUSB_EP_OFFSET(musb_channel->epnum, MUSB_RXCSR), csr); } musb_writew(mbase, - MUSB_HSDMA_CHANNEL_OFFSET(bChannel, MUSB_HSDMA_CONTROL), + MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_CONTROL), 0); musb_writel(mbase, - MUSB_HSDMA_CHANNEL_OFFSET(bChannel, MUSB_HSDMA_ADDRESS), + MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_ADDRESS), 0); musb_writel(mbase, - MUSB_HSDMA_CHANNEL_OFFSET(bChannel, MUSB_HSDMA_COUNT), + MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_COUNT), 0); - pChannel->status = MUSB_DMA_STATUS_FREE; + channel->status = MUSB_DMA_STATUS_FREE; } + return 0; } static irqreturn_t dma_controller_irq(int irq, void *private_data) { - struct musb_dma_controller *controller = - (struct musb_dma_controller *)private_data; - struct musb_dma_channel *pImplChannel; - struct musb *musb = controller->pDmaPrivate; - void __iomem *mbase = controller->pCoreBase; - struct dma_channel *pChannel; - u8 bChannel; - u16 csr; - u32 dwAddress; - u8 int_hsdma; + struct musb_dma_controller *controller = private_data; + struct musb *musb = controller->private_data; + struct musb_dma_channel *musb_channel; + struct dma_channel *channel; + + void __iomem *mbase = controller->base; + irqreturn_t retval = IRQ_NONE; + unsigned long flags; + u8 bchannel; + u8 int_hsdma; + + u32 addr; + u16 csr; + spin_lock_irqsave(&musb->lock, flags); int_hsdma = musb_readb(mbase, MUSB_HSDMA_INTR); if (!int_hsdma) goto done; - for (bChannel = 0; bChannel < MUSB_HSDMA_CHANNELS; bChannel++) { - if (int_hsdma & (1 << bChannel)) { - pImplChannel = (struct musb_dma_channel *) - &(controller->aChannel[bChannel]); - pChannel = &pImplChannel->Channel; + for (bchannel = 0; bchannel < MUSB_HSDMA_CHANNELS; bchannel++) { + if (int_hsdma & (1 << bchannel)) { + musb_channel = (struct musb_dma_channel *) + &(controller->channel[bchannel]); + channel = &musb_channel->channel; csr = musb_readw(mbase, - MUSB_HSDMA_CHANNEL_OFFSET(bChannel, + MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_CONTROL)); - if (csr & (1 << MUSB_HSDMA_BUSERROR_SHIFT)) - pImplChannel->Channel.status = + if (csr & (1 << MUSB_HSDMA_BUSERROR_SHIFT)) { + musb_channel->channel.status = MUSB_DMA_STATUS_BUS_ABORT; - else { + } else { u8 devctl; - dwAddress = musb_readl(mbase, + addr = musb_readl(mbase, MUSB_HSDMA_CHANNEL_OFFSET( - bChannel, + bchannel, MUSB_HSDMA_ADDRESS)); - pChannel->actual_len = dwAddress - - pImplChannel->dwStartAddress; + channel->actual_len = addr + - musb_channel->start_addr; DBG(2, "ch %p, 0x%x -> 0x%x (%d / %d) %s\n", - pChannel, pImplChannel->dwStartAddress, - dwAddress, pChannel->actual_len, - pImplChannel->len, - (pChannel->actual_len - < pImplChannel->len) ? + channel, musb_channel->start_addr, + addr, channel->actual_len, + musb_channel->len, + (channel->actual_len + < musb_channel->len) ? "=> reconfig 0" : "=> complete"); devctl = musb_readb(mbase, MUSB_DEVCTL); - pChannel->status = MUSB_DMA_STATUS_FREE; + channel->status = MUSB_DMA_STATUS_FREE; /* completed */ if ((devctl & MUSB_DEVCTL_HM) - && (pImplChannel->transmit) - && ((pChannel->desired_mode == 0) - || (pChannel->actual_len & - (pImplChannel->wMaxPacketSize - 1))) + && (musb_channel->transmit) + && ((channel->desired_mode == 0) + || (channel->actual_len & + (musb_channel->max_packet_sz - 1))) ) { /* Send out the packet */ musb_ep_select(mbase, - pImplChannel->epnum); + musb_channel->epnum); musb_writew(mbase, MUSB_EP_OFFSET( - pImplChannel->epnum, + musb_channel->epnum, MUSB_TXCSR), MUSB_TXCSR_TXPKTRDY); - } else + } else { musb_dma_completion( musb, - pImplChannel->epnum, - pImplChannel->transmit); + musb_channel->epnum, + musb_channel->transmit); + } } } } @@ -380,9 +383,9 @@ done: void dma_controller_destroy(struct dma_controller *c) { - struct musb_dma_controller *controller; + struct musb_dma_controller *controller = container_of(c, + struct musb_dma_controller, controller); - controller = container_of(c, struct musb_dma_controller, Controller); if (!controller) return; @@ -393,7 +396,7 @@ void dma_controller_destroy(struct dma_controller *c) } struct dma_controller *__init -dma_controller_create(struct musb *musb, void __iomem *pCoreBase) +dma_controller_create(struct musb *musb, void __iomem *base) { struct musb_dma_controller *controller; struct device *dev = musb->controller; @@ -405,29 +408,30 @@ dma_controller_create(struct musb *musb, void __iomem *pCoreBase) return NULL; } - controller = kzalloc(sizeof(struct musb_dma_controller), GFP_KERNEL); + controller = kzalloc(sizeof(*controller), GFP_KERNEL); if (!controller) return NULL; - controller->bChannelCount = MUSB_HSDMA_CHANNELS; - controller->pDmaPrivate = musb; - controller->pCoreBase = pCoreBase; + controller->channel_count = MUSB_HSDMA_CHANNELS; + controller->private_data = musb; + controller->base = base; - controller->Controller.start = dma_controller_start; - controller->Controller.stop = dma_controller_stop; - controller->Controller.channel_alloc = dma_channel_allocate; - controller->Controller.channel_release = dma_channel_release; - controller->Controller.channel_program = dma_channel_program; - controller->Controller.channel_abort = dma_channel_abort; + controller->controller.start = dma_controller_start; + controller->controller.stop = dma_controller_stop; + controller->controller.channel_alloc = dma_channel_allocate; + controller->controller.channel_release = dma_channel_release; + controller->controller.channel_program = dma_channel_program; + controller->controller.channel_abort = dma_channel_abort; if (request_irq(irq, dma_controller_irq, IRQF_DISABLED, - musb->controller->bus_id, &controller->Controller)) { + musb->controller->bus_id, &controller->controller)) { dev_err(dev, "request_irq %d failed!\n", irq); - dma_controller_destroy(&controller->Controller); + dma_controller_destroy(&controller->controller); + return NULL; } controller->irq = irq; - return &controller->Controller; + return &controller->controller; } diff --git a/drivers/usb/serial/aircable.c b/drivers/usb/serial/aircable.c index 99fb7dc59c45..537f953bd7f8 100644 --- a/drivers/usb/serial/aircable.c +++ b/drivers/usb/serial/aircable.c @@ -220,8 +220,8 @@ static void aircable_send(struct usb_serial_port *port) buf = kzalloc(count + HCI_HEADER_LENGTH, GFP_ATOMIC); if (!buf) { - err("%s- kzalloc(%d) failed.", __func__, - count + HCI_HEADER_LENGTH); + dev_err(&port->dev, "%s- kzalloc(%d) failed.\n", + __func__, count + HCI_HEADER_LENGTH); return; } @@ -276,7 +276,7 @@ static void aircable_read(struct work_struct *work) if (!tty) { schedule_work(&priv->rx_work); - err("%s - No tty available", __func__); + dev_err(&port->dev, "%s - No tty available\n", __func__); return ; } @@ -336,7 +336,7 @@ static int aircable_attach(struct usb_serial *serial) priv = kzalloc(sizeof(struct aircable_private), GFP_KERNEL); if (!priv) { - err("%s- kmalloc(%Zd) failed.", __func__, + dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__, sizeof(struct aircable_private)); return -ENOMEM; } diff --git a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c index 1913bc7c5f0b..b7eacad4d48c 100644 --- a/drivers/usb/serial/belkin_sa.c +++ b/drivers/usb/serial/belkin_sa.c @@ -187,7 +187,7 @@ static int belkin_sa_startup(struct usb_serial *serial) /* see comments at top of file */ priv->bad_flow_control = (le16_to_cpu(dev->descriptor.bcdDevice) <= 0x0206) ? 1 : 0; - info("bcdDevice: %04x, bfc: %d", + dev_info(&dev->dev, "bcdDevice: %04x, bfc: %d\n", le16_to_cpu(dev->descriptor.bcdDevice), priv->bad_flow_control); @@ -228,7 +228,7 @@ static int belkin_sa_open(struct tty_struct *tty, port->read_urb->dev = port->serial->dev; retval = usb_submit_urb(port->read_urb, GFP_KERNEL); if (retval) { - err("usb_submit_urb(read bulk) failed"); + dev_err(&port->dev, "usb_submit_urb(read bulk) failed\n"); goto exit; } @@ -236,7 +236,7 @@ static int belkin_sa_open(struct tty_struct *tty, retval = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); if (retval) { usb_kill_urb(port->read_urb); - err(" usb_submit_urb(read int) failed"); + dev_err(&port->dev, "usb_submit_urb(read int) failed\n"); } exit: @@ -342,8 +342,8 @@ static void belkin_sa_read_int_callback(struct urb *urb) exit: retval = usb_submit_urb(urb, GFP_ATOMIC); if (retval) - err("%s - usb_submit_urb failed with result %d", - __func__, retval); + dev_err(&port->dev, "%s - usb_submit_urb failed with " + "result %d\n", __func__, retval); } static void belkin_sa_set_termios(struct tty_struct *tty, @@ -382,12 +382,12 @@ static void belkin_sa_set_termios(struct tty_struct *tty, if ((old_cflag & CBAUD) == B0) { control_state |= (TIOCM_DTR|TIOCM_RTS); if (BSA_USB_CMD(BELKIN_SA_SET_DTR_REQUEST, 1) < 0) - err("Set DTR error"); + dev_err(&port->dev, "Set DTR error\n"); /* don't set RTS if using hardware flow control */ if (!(old_cflag & CRTSCTS)) if (BSA_USB_CMD(BELKIN_SA_SET_RTS_REQUEST , 1) < 0) - err("Set RTS error"); + dev_err(&port->dev, "Set RTS error\n"); } } @@ -403,18 +403,18 @@ static void belkin_sa_set_termios(struct tty_struct *tty, /* Report the actual baud rate back to the caller */ tty_encode_baud_rate(tty, baud, baud); if (BSA_USB_CMD(BELKIN_SA_SET_BAUDRATE_REQUEST, urb_value) < 0) - err("Set baudrate error"); + dev_err(&port->dev, "Set baudrate error\n"); } else { /* Disable flow control */ if (BSA_USB_CMD(BELKIN_SA_SET_FLOW_CTRL_REQUEST, BELKIN_SA_FLOW_NONE) < 0) - err("Disable flowcontrol error"); + dev_err(&port->dev, "Disable flowcontrol error\n"); /* Drop RTS and DTR */ control_state &= ~(TIOCM_DTR | TIOCM_RTS); if (BSA_USB_CMD(BELKIN_SA_SET_DTR_REQUEST, 0) < 0) - err("DTR LOW error"); + dev_err(&port->dev, "DTR LOW error\n"); if (BSA_USB_CMD(BELKIN_SA_SET_RTS_REQUEST, 0) < 0) - err("RTS LOW error"); + dev_err(&port->dev, "RTS LOW error\n"); } /* set the parity */ @@ -425,7 +425,7 @@ static void belkin_sa_set_termios(struct tty_struct *tty, else urb_value = BELKIN_SA_PARITY_NONE; if (BSA_USB_CMD(BELKIN_SA_SET_PARITY_REQUEST, urb_value) < 0) - err("Set parity error"); + dev_err(&port->dev, "Set parity error\n"); } /* set the number of data bits */ @@ -448,7 +448,7 @@ static void belkin_sa_set_termios(struct tty_struct *tty, break; } if (BSA_USB_CMD(BELKIN_SA_SET_DATA_BITS_REQUEST, urb_value) < 0) - err("Set data bits error"); + dev_err(&port->dev, "Set data bits error\n"); } /* set the number of stop bits */ @@ -457,7 +457,7 @@ static void belkin_sa_set_termios(struct tty_struct *tty, : BELKIN_SA_STOP_BITS(1); if (BSA_USB_CMD(BELKIN_SA_SET_STOP_BITS_REQUEST, urb_value) < 0) - err("Set stop bits error"); + dev_err(&port->dev, "Set stop bits error\n"); } /* Set flow control */ @@ -478,7 +478,7 @@ static void belkin_sa_set_termios(struct tty_struct *tty, urb_value &= ~(BELKIN_SA_FLOW_IRTS); if (BSA_USB_CMD(BELKIN_SA_SET_FLOW_CTRL_REQUEST, urb_value) < 0) - err("Set flow control error"); + dev_err(&port->dev, "Set flow control error\n"); } /* save off the modified port settings */ @@ -494,7 +494,7 @@ static void belkin_sa_break_ctl(struct tty_struct *tty, int break_state) struct usb_serial *serial = port->serial; if (BSA_USB_CMD(BELKIN_SA_SET_BREAK_REQUEST, break_state ? 1 : 0) < 0) - err("Set break_ctl %d", break_state); + dev_err(&port->dev, "Set break_ctl %d\n", break_state); } @@ -554,13 +554,13 @@ static int belkin_sa_tiocmset(struct tty_struct *tty, struct file *file, retval = BSA_USB_CMD(BELKIN_SA_SET_RTS_REQUEST, rts); if (retval < 0) { - err("Set RTS error %d", retval); + dev_err(&port->dev, "Set RTS error %d\n", retval); goto exit; } retval = BSA_USB_CMD(BELKIN_SA_SET_DTR_REQUEST, dtr); if (retval < 0) { - err("Set DTR error %d", retval); + dev_err(&port->dev, "Set DTR error %d\n", retval); goto exit; } exit: @@ -577,7 +577,8 @@ static int __init belkin_sa_init(void) retval = usb_register(&belkin_driver); if (retval) goto failed_usb_register; - info(DRIVER_DESC " " DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; failed_usb_register: usb_serial_deregister(&belkin_device); diff --git a/drivers/usb/serial/cp2101.c b/drivers/usb/serial/cp2101.c index 1279553381e3..8008d0bc80ad 100644 --- a/drivers/usb/serial/cp2101.c +++ b/drivers/usb/serial/cp2101.c @@ -753,7 +753,8 @@ static int __init cp2101_init(void) } /* Success */ - info(DRIVER_DESC " " DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; } diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c index 94ef36c4764b..858bdd038fbc 100644 --- a/drivers/usb/serial/cyberjack.c +++ b/drivers/usb/serial/cyberjack.c @@ -141,7 +141,8 @@ static int cyberjack_startup(struct usb_serial *serial) result = usb_submit_urb(serial->port[i]->interrupt_in_urb, GFP_KERNEL); if (result) - err(" usb_submit_urb(read int) failed"); + dev_err(&serial->dev->dev, + "usb_submit_urb(read int) failed\n"); dbg("%s - usb_submit_urb(int urb)", __func__); } @@ -274,8 +275,9 @@ static int cyberjack_write(struct tty_struct *tty, /* send the data out the bulk port */ result = usb_submit_urb(port->write_urb, GFP_ATOMIC); if (result) { - err("%s - failed submitting write urb, error %d", - __func__, result); + dev_err(&port->dev, + "%s - failed submitting write urb, error %d", + __func__, result); /* Throw away data. No better idea what to do with it. */ priv->wrfilled = 0; priv->wrsent = 0; @@ -351,7 +353,9 @@ static void cyberjack_read_int_callback(struct urb *urb) port->read_urb->dev = port->serial->dev; result = usb_submit_urb(port->read_urb, GFP_ATOMIC); if (result) - err("%s - failed resubmitting read urb, error %d", __func__, result); + dev_err(&port->dev, "%s - failed resubmitting " + "read urb, error %d\n", + __func__, result); dbg("%s - usb_submit_urb(read urb)", __func__); } } @@ -360,7 +364,7 @@ resubmit: port->interrupt_in_urb->dev = port->serial->dev; result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); if (result) - err(" usb_submit_urb(read int) failed"); + dev_err(&port->dev, "usb_submit_urb(read int) failed\n"); dbg("%s - usb_submit_urb(int urb)", __func__); } @@ -414,8 +418,8 @@ static void cyberjack_read_bulk_callback(struct urb *urb) port->read_urb->dev = port->serial->dev; result = usb_submit_urb(port->read_urb, GFP_ATOMIC); if (result) - err("%s - failed resubmitting read urb, error %d", - __func__, result); + dev_err(&port->dev, "%s - failed resubmitting read " + "urb, error %d\n", __func__, result); dbg("%s - usb_submit_urb(read urb)", __func__); } } @@ -462,8 +466,9 @@ static void cyberjack_write_bulk_callback(struct urb *urb) /* send the data out the bulk port */ result = usb_submit_urb(port->write_urb, GFP_ATOMIC); if (result) { - err("%s - failed submitting write urb, error %d", - __func__, result); + dev_err(&port->dev, + "%s - failed submitting write urb, error %d\n", + __func__, result); /* Throw away data. No better idea what to do with it. */ priv->wrfilled = 0; priv->wrsent = 0; @@ -499,8 +504,9 @@ static int __init cyberjack_init(void) if (retval) goto failed_usb_register; - info(DRIVER_VERSION " " DRIVER_AUTHOR); - info(DRIVER_DESC); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION " " + DRIVER_AUTHOR "\n"); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC "\n"); return 0; failed_usb_register: diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index f3514a91f915..eae4740d448c 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c @@ -404,8 +404,8 @@ static int cypress_serial_control(struct tty_struct *tty, retval != -ENODEV); if (retval != sizeof(feature_buffer)) { - err("%s - failed sending serial line settings - %d", - __func__, retval); + dev_err(&port->dev, "%s - failed sending serial " + "line settings - %d\n", __func__, retval); cypress_set_dead(port); } else { spin_lock_irqsave(&priv->lock, flags); @@ -443,7 +443,8 @@ static int cypress_serial_control(struct tty_struct *tty, && retval != -ENODEV); if (retval != sizeof(feature_buffer)) { - err("%s - failed to retrieve serial line settings - %d", __func__, retval); + dev_err(&port->dev, "%s - failed to retrieve serial " + "line settings - %d\n", __func__, retval); cypress_set_dead(port); return retval; } else { @@ -476,8 +477,8 @@ static void cypress_set_dead(struct usb_serial_port *port) priv->comm_is_ok = 0; spin_unlock_irqrestore(&priv->lock, flags); - err("cypress_m8 suspending failing port %d - interval might be too short", - port->number); + dev_err(&port->dev, "cypress_m8 suspending failing port %d - " + "interval might be too short\n", port->number); } @@ -679,7 +680,8 @@ static int cypress_open(struct tty_struct *tty, /* setup the port and start reading from the device */ if (!port->interrupt_in_urb) { - err("%s - interrupt_in_urb is empty!", __func__); + dev_err(&port->dev, "%s - interrupt_in_urb is empty!\n", + __func__); return -1; } @@ -1107,8 +1109,8 @@ static void cypress_set_termios(struct tty_struct *tty, data_bits = 3; break; default: - err("%s - CSIZE was set, but not CS5-CS8", - __func__); + dev_err(&port->dev, "%s - CSIZE was set, but not CS5-CS8\n", + __func__); data_bits = 3; } spin_lock_irqsave(&priv->lock, flags); @@ -1658,7 +1660,8 @@ static int __init cypress_init(void) if (retval) goto failed_usb_register; - info(DRIVER_DESC " " DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; failed_usb_register: diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c index 5756ac6d6c92..69f84f0ea6fe 100644 --- a/drivers/usb/serial/digi_acceleport.c +++ b/drivers/usb/serial/digi_acceleport.c @@ -661,7 +661,8 @@ static int digi_write_oob_command(struct usb_serial_port *port, } spin_unlock_irqrestore(&oob_priv->dp_port_lock, flags); if (ret) - err("%s: usb_submit_urb failed, ret=%d", __func__, ret); + dev_err(&port->dev, "%s: usb_submit_urb failed, ret=%d\n", + __func__, ret); return ret; } @@ -743,7 +744,8 @@ static int digi_write_inb_command(struct usb_serial_port *port, spin_unlock_irqrestore(&priv->dp_port_lock, flags); if (ret) - err("%s: usb_submit_urb failed, ret=%d, port=%d", + dev_err(&port->dev, + "%s: usb_submit_urb failed, ret=%d, port=%d\n", __func__, ret, priv->dp_port_num); return ret; } @@ -812,7 +814,8 @@ static int digi_set_modem_signals(struct usb_serial_port *port, spin_unlock(&port_priv->dp_port_lock); spin_unlock_irqrestore(&oob_priv->dp_port_lock, flags); if (ret) - err("%s: usb_submit_urb failed, ret=%d", __func__, ret); + dev_err(&port->dev, "%s: usb_submit_urb failed, ret=%d\n", + __func__, ret); return ret; } @@ -907,7 +910,8 @@ static void digi_rx_unthrottle(struct tty_struct *tty) spin_unlock_irqrestore(&priv->dp_port_lock, flags); if (ret) - err("%s: usb_submit_urb failed, ret=%d, port=%d", + dev_err(&port->dev, + "%s: usb_submit_urb failed, ret=%d, port=%d\n", __func__, ret, priv->dp_port_num); } @@ -1214,7 +1218,8 @@ static int digi_write(struct tty_struct *tty, struct usb_serial_port *port, /* return length of new data written, or error */ spin_unlock_irqrestore(&priv->dp_port_lock, flags); if (ret < 0) - err("%s: usb_submit_urb failed, ret=%d, port=%d", + dev_err(&port->dev, + "%s: usb_submit_urb failed, ret=%d, port=%d\n", __func__, ret, priv->dp_port_num); dbg("digi_write: returning %d", ret); return ret; @@ -1235,14 +1240,16 @@ static void digi_write_bulk_callback(struct urb *urb) /* port and serial sanity check */ if (port == NULL || (priv = usb_get_serial_port_data(port)) == NULL) { - err("%s: port or port->private is NULL, status=%d", - __func__, status); + dev_err(&port->dev, + "%s: port or port->private is NULL, status=%d\n", + __func__, status); return; } serial = port->serial; if (serial == NULL || (serial_priv = usb_get_serial_data(serial)) == NULL) { - err("%s: serial or serial->private is NULL, status=%d", - __func__, status); + dev_err(&port->dev, + "%s: serial or serial->private is NULL, status=%d\n", + __func__, status); return; } @@ -1284,7 +1291,8 @@ static void digi_write_bulk_callback(struct urb *urb) spin_unlock(&priv->dp_port_lock); if (ret) - err("%s: usb_submit_urb failed, ret=%d, port=%d", + dev_err(&port->dev, + "%s: usb_submit_urb failed, ret=%d, port=%d\n", __func__, ret, priv->dp_port_num); } @@ -1518,8 +1526,9 @@ static int digi_startup_device(struct usb_serial *serial) port->write_urb->dev = port->serial->dev; ret = usb_submit_urb(port->read_urb, GFP_KERNEL); if (ret != 0) { - err("%s: usb_submit_urb failed, ret=%d, port=%d", - __func__, ret, i); + dev_err(&port->dev, + "%s: usb_submit_urb failed, ret=%d, port=%d\n", + __func__, ret, i); break; } } @@ -1618,22 +1627,26 @@ static void digi_read_bulk_callback(struct urb *urb) dbg("digi_read_bulk_callback: TOP"); /* port sanity check, do not resubmit if port is not valid */ - if (port == NULL || (priv = usb_get_serial_port_data(port)) == NULL) { - err("%s: port or port->private is NULL, status=%d", - __func__, status); + if (port == NULL) + return; + priv = usb_get_serial_port_data(port); + if (priv == NULL) { + dev_err(&port->dev, "%s: port->private is NULL, status=%d\n", + __func__, status); return; } if (port->serial == NULL || (serial_priv = usb_get_serial_data(port->serial)) == NULL) { - err("%s: serial is bad or serial->private is NULL, status=%d", - __func__, status); + dev_err(&port->dev, "%s: serial is bad or serial->private " + "is NULL, status=%d\n", __func__, status); return; } /* do not resubmit urb if it has any status error */ if (status) { - err("%s: nonzero read bulk status: status=%d, port=%d", - __func__, status, priv->dp_port_num); + dev_err(&port->dev, + "%s: nonzero read bulk status: status=%d, port=%d\n", + __func__, status, priv->dp_port_num); return; } @@ -1650,8 +1663,9 @@ static void digi_read_bulk_callback(struct urb *urb) urb->dev = port->serial->dev; ret = usb_submit_urb(urb, GFP_ATOMIC); if (ret != 0) { - err("%s: failed resubmitting urb, ret=%d, port=%d", - __func__, ret, priv->dp_port_num); + dev_err(&port->dev, + "%s: failed resubmitting urb, ret=%d, port=%d\n", + __func__, ret, priv->dp_port_num); } } @@ -1687,10 +1701,11 @@ static int digi_read_inb_callback(struct urb *urb) /* short/multiple packet check */ if (urb->actual_length != len + 2) { - err("%s: INCOMPLETE OR MULTIPLE PACKET, urb->status=%d, " - "port=%d, opcode=%d, len=%d, actual_length=%d, " - "status=%d", __func__, status, priv->dp_port_num, - opcode, len, urb->actual_length, port_status); + dev_err(&port->dev, "%s: INCOMPLETE OR MULTIPLE PACKET, " + "urb->status=%d, port=%d, opcode=%d, len=%d, " + "actual_length=%d, status=%d\n", __func__, status, + priv->dp_port_num, opcode, len, urb->actual_length, + port_status); return -1; } @@ -1854,7 +1869,8 @@ static int __init digi_init(void) retval = usb_register(&digi_driver); if (retval) goto failed_usb_register; - info(DRIVER_VERSION ":" DRIVER_DESC); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; failed_usb_register: usb_serial_deregister(&digi_acceleport_4_device); diff --git a/drivers/usb/serial/empeg.c b/drivers/usb/serial/empeg.c index 1072e847280f..8a69cce40b6d 100644 --- a/drivers/usb/serial/empeg.c +++ b/drivers/usb/serial/empeg.c @@ -416,7 +416,7 @@ static int empeg_startup(struct usb_serial *serial) dbg("%s", __func__); if (serial->dev->actconfig->desc.bConfigurationValue != 1) { - err("active config #%d != 1 ??", + dev_err(&serial->dev->dev, "active config #%d != 1 ??\n", serial->dev->actconfig->desc.bConfigurationValue); return -ENODEV; } @@ -499,15 +499,15 @@ static int __init empeg_init(void) urb = usb_alloc_urb(0, GFP_KERNEL); write_urb_pool[i] = urb; if (urb == NULL) { - err("No more urbs???"); + printk(KERN_ERR "empeg: No more urbs???\n"); continue; } urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL); if (!urb->transfer_buffer) { - err("%s - out of memory for urb buffers.", - __func__); + printk(KERN_ERR "empeg: %s - out of memory for urb " + "buffers.", __func__); continue; } } @@ -519,7 +519,8 @@ static int __init empeg_init(void) if (retval) goto failed_usb_register; - info(DRIVER_VERSION ":" DRIVER_DESC); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; failed_usb_register: diff --git a/drivers/usb/serial/ezusb.c b/drivers/usb/serial/ezusb.c index 711e84f6ed82..3cfc762f5056 100644 --- a/drivers/usb/serial/ezusb.c +++ b/drivers/usb/serial/ezusb.c @@ -28,7 +28,8 @@ int ezusb_writememory(struct usb_serial *serial, int address, /* dbg("ezusb_writememory %x, %d", address, length); */ if (!serial->dev) { - err("%s - no physical device present, failing.", __func__); + printk(KERN_ERR "ezusb: %s - no physical device present, " + "failing.\n", __func__); return -ENODEV; } diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index c2ac129557aa..51d7bdea2869 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -578,6 +578,7 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) }, { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) }, { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) }, { USB_DEVICE(TTI_VID, TTI_QL355P_PID) }, { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) }, { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) }, @@ -1153,7 +1154,7 @@ static void ftdi_determine_type(struct usb_serial_port *port) /* Assume its an FT232R */ priv->chip_type = FT232RL; } - info("Detected %s", ftdi_chip_name[priv->chip_type]); + dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]); } @@ -1326,7 +1327,7 @@ static int ftdi_sio_port_probe(struct usb_serial_port *port) priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL); if (!priv) { - err("%s- kmalloc(%Zd) failed.", __func__, + dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__, sizeof(struct ftdi_private)); return -ENOMEM; } @@ -1409,7 +1410,8 @@ static int ftdi_jtag_probe(struct usb_serial *serial) dbg("%s", __func__); if (interface == udev->actconfig->interface[0]) { - info("Ignoring serial port reserved for JTAG"); + dev_info(&udev->dev, + "Ignoring serial port reserved for JTAG\n"); return -ENODEV; } @@ -1427,7 +1429,8 @@ static int ftdi_mtxorb_hack_setup(struct usb_serial *serial) if (ep->enabled && ep_desc->wMaxPacketSize == 0) { ep_desc->wMaxPacketSize = cpu_to_le16(0x40); - info("Fixing invalid wMaxPacketSize on read pipe"); + dev_info(&serial->dev->dev, + "Fixing invalid wMaxPacketSize on read pipe\n"); } return 0; @@ -1521,8 +1524,9 @@ static int ftdi_open(struct tty_struct *tty, ftdi_read_bulk_callback, port); result = usb_submit_urb(port->read_urb, GFP_KERNEL); if (result) - err("%s - failed submitting read urb, error %d", - __func__, result); + dev_err(&port->dev, + "%s - failed submitting read urb, error %d\n", + __func__, result); return result; @@ -1556,7 +1560,7 @@ static void ftdi_close(struct tty_struct *tty, FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 0, priv->interface, buf, 0, WDR_TIMEOUT) < 0) { - err("error from flowcontrol urb"); + dev_err(&port->dev, "error from flowcontrol urb\n"); } /* drop RTS and DTR */ @@ -1621,14 +1625,15 @@ static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, buffer = kmalloc(transfer_size, GFP_ATOMIC); if (!buffer) { - err("%s ran out of kernel memory for urb ...", __func__); + dev_err(&port->dev, + "%s ran out of kernel memory for urb ...\n", __func__); count = -ENOMEM; goto error_no_buffer; } urb = usb_alloc_urb(0, GFP_ATOMIC); if (!urb) { - err("%s - no more free urbs", __func__); + dev_err(&port->dev, "%s - no more free urbs\n", __func__); count = -ENOMEM; goto error_no_urb; } @@ -1672,8 +1677,9 @@ static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, status = usb_submit_urb(urb, GFP_ATOMIC); if (status) { - err("%s - failed submitting write urb, error %d", - __func__, status); + dev_err(&port->dev, + "%s - failed submitting write urb, error %d\n", + __func__, status); count = status; goto error; } else { @@ -1780,7 +1786,8 @@ static int ftdi_chars_in_buffer(struct tty_struct *tty) buffered = (int)priv->tx_outstanding_bytes; spin_unlock_irqrestore(&priv->tx_lock, flags); if (buffered < 0) { - err("%s outstanding tx bytes is negative!", __func__); + dev_err(&port->dev, "%s outstanding tx bytes is negative!\n", + __func__); buffered = 0; } return buffered; @@ -1796,11 +1803,12 @@ static void ftdi_read_bulk_callback(struct urb *urb) int status = urb->status; if (urb->number_of_packets > 0) { - err("%s transfer_buffer_length %d actual_length %d number of packets %d", - __func__, - urb->transfer_buffer_length, - urb->actual_length, urb->number_of_packets); - err("%s transfer_flags %x ", __func__, urb->transfer_flags); + dev_err(&port->dev, "%s transfer_buffer_length %d " + "actual_length %d number of packets %d\n", __func__, + urb->transfer_buffer_length, + urb->actual_length, urb->number_of_packets); + dev_err(&port->dev, "%s transfer_flags %x\n", __func__, + urb->transfer_flags); } dbg("%s - port %d", __func__, port->number); @@ -1821,7 +1829,7 @@ static void ftdi_read_bulk_callback(struct urb *urb) } if (urb != port->read_urb) - err("%s - Not my urb!", __func__); + dev_err(&port->dev, "%s - Not my urb!\n", __func__); if (status) { /* This will happen at close every time so it is a dbg not an @@ -1924,7 +1932,8 @@ static void ftdi_process_read(struct work_struct *work) length = min(PKTSZ, urb->actual_length-packet_offset)-2; if (length < 0) { - err("%s - bad packet length: %d", __func__, length+2); + dev_err(&port->dev, "%s - bad packet length: %d\n", + __func__, length+2); length = 0; } @@ -2039,8 +2048,9 @@ static void ftdi_process_read(struct work_struct *work) result = usb_submit_urb(port->read_urb, GFP_ATOMIC); if (result) - err("%s - failed resubmitting read urb, error %d", - __func__, result); + dev_err(&port->dev, + "%s - failed resubmitting read urb, error %d\n", + __func__, result); } out: tty_kref_put(tty); @@ -2069,8 +2079,8 @@ static void ftdi_break_ctl(struct tty_struct *tty, int break_state) FTDI_SIO_SET_DATA_REQUEST_TYPE, urb_value , priv->interface, buf, 0, WDR_TIMEOUT) < 0) { - err("%s FAILED to enable/disable break state (state was %d)", - __func__, break_state); + dev_err(&port->dev, "%s FAILED to enable/disable break state " + "(state was %d)\n", __func__, break_state); } dbg("%s break state is %d - urb is %d", __func__, @@ -2142,7 +2152,7 @@ static void ftdi_set_termios(struct tty_struct *tty, case CS7: urb_value |= 7; dbg("Setting CS7"); break; case CS8: urb_value |= 8; dbg("Setting CS8"); break; default: - err("CSIZE was set but not CS5-CS8"); + dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n"); } } @@ -2155,7 +2165,8 @@ static void ftdi_set_termios(struct tty_struct *tty, FTDI_SIO_SET_DATA_REQUEST_TYPE, urb_value , priv->interface, buf, 0, WDR_SHORT_TIMEOUT) < 0) { - err("%s FAILED to set databits/stopbits/parity", __func__); + dev_err(&port->dev, "%s FAILED to set " + "databits/stopbits/parity\n", __func__); } /* Now do the baudrate */ @@ -2166,14 +2177,17 @@ static void ftdi_set_termios(struct tty_struct *tty, FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 0, priv->interface, buf, 0, WDR_TIMEOUT) < 0) { - err("%s error from disable flowcontrol urb", __func__); + dev_err(&port->dev, + "%s error from disable flowcontrol urb\n", + __func__); } /* Drop RTS and DTR */ clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); } else { /* set the baudrate determined before */ if (change_speed(tty, port)) - err("%s urb failed to set baudrate", __func__); + dev_err(&port->dev, "%s urb failed to set baudrate\n", + __func__); /* Ensure RTS and DTR are raised when baudrate changed from 0 */ if (!old_termios || (old_termios->c_cflag & CBAUD) == B0) set_mctrl(port, TIOCM_DTR | TIOCM_RTS); @@ -2189,7 +2203,8 @@ static void ftdi_set_termios(struct tty_struct *tty, FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface), buf, 0, WDR_TIMEOUT) < 0) { - err("urb failed to set to rts/cts flow control"); + dev_err(&port->dev, + "urb failed to set to rts/cts flow control\n"); } } else { @@ -2220,7 +2235,8 @@ static void ftdi_set_termios(struct tty_struct *tty, urb_value , (FTDI_SIO_XON_XOFF_HS | priv->interface), buf, 0, WDR_TIMEOUT) < 0) { - err("urb failed to set to xon/xoff flow control"); + dev_err(&port->dev, "urb failed to set to " + "xon/xoff flow control\n"); } } else { /* else clause to only run if cflag ! CRTSCTS and iflag @@ -2233,7 +2249,8 @@ static void ftdi_set_termios(struct tty_struct *tty, FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 0, priv->interface, buf, 0, WDR_TIMEOUT) < 0) { - err("urb failed to clear flow control"); + dev_err(&port->dev, + "urb failed to clear flow control\n"); } } @@ -2425,7 +2442,8 @@ static int __init ftdi_init(void) if (retval) goto failed_usb_register; - info(DRIVER_VERSION ":" DRIVER_DESC); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; failed_usb_register: usb_serial_deregister(&ftdi_sio_device); @@ -2458,5 +2476,5 @@ module_param(vendor, ushort, 0); MODULE_PARM_DESC(vendor, "User specified vendor ID (default=" __MODULE_STRING(FTDI_VID)")"); module_param(product, ushort, 0); -MODULE_PARM_DESC(vendor, "User specified product ID"); +MODULE_PARM_DESC(product, "User specified product ID"); diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h index 8a5b6df3a976..07a3992abad2 100644 --- a/drivers/usb/serial/ftdi_sio.h +++ b/drivers/usb/serial/ftdi_sio.h @@ -628,6 +628,11 @@ #define FTDI_SUUNTO_SPORTS_PID 0xF680 /* Suunto Sports instrument */ /* + * Oceanic product ids + */ +#define FTDI_OCEANIC_PID 0xF460 /* Oceanic dive instrument */ + +/* * TTi (Thurlby Thandar Instruments) */ #define TTI_VID 0x103E /* Vendor Id */ diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c index 2ad0569bcf19..8e6a66e38db2 100644 --- a/drivers/usb/serial/garmin_gps.c +++ b/drivers/usb/serial/garmin_gps.c @@ -1585,7 +1585,8 @@ static int __init garmin_init(void) retval = usb_register(&garmin_driver); if (retval) goto failed_usb_register; - info(DRIVER_DESC " " DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; failed_usb_register: diff --git a/drivers/usb/serial/hp4x.c b/drivers/usb/serial/hp4x.c index ab905869e959..431329275133 100644 --- a/drivers/usb/serial/hp4x.c +++ b/drivers/usb/serial/hp4x.c @@ -63,7 +63,8 @@ static int __init hp49gp_init(void) retval = usb_register(&hp49gp_driver); if (retval) goto failed_usb_register; - info(DRIVER_DESC " " DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; failed_usb_register: usb_serial_deregister(&hp49gp_device); diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c index 611f97fd62f1..e85c8c0d1ad9 100644 --- a/drivers/usb/serial/io_edgeport.c +++ b/drivers/usb/serial/io_edgeport.c @@ -3109,13 +3109,13 @@ static int edge_startup(struct usb_serial *serial) edge_serial->interrupt_read_urb = usb_alloc_urb(0, GFP_KERNEL); if (!edge_serial->interrupt_read_urb) { - err("out of memory"); + dev_err(&dev->dev, "out of memory\n"); return -ENOMEM; } edge_serial->interrupt_in_buffer = kmalloc(buffer_size, GFP_KERNEL); if (!edge_serial->interrupt_in_buffer) { - err("out of memory"); + dev_err(&dev->dev, "out of memory\n"); usb_free_urb(edge_serial->interrupt_read_urb); return -ENOMEM; } @@ -3146,13 +3146,13 @@ static int edge_startup(struct usb_serial *serial) edge_serial->read_urb = usb_alloc_urb(0, GFP_KERNEL); if (!edge_serial->read_urb) { - err("out of memory"); + dev_err(&dev->dev, "out of memory\n"); return -ENOMEM; } edge_serial->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL); if (!edge_serial->bulk_in_buffer) { - err("out of memory"); + dev_err(&dev->dev, "out of memory\n"); usb_free_urb(edge_serial->read_urb); return -ENOMEM; } @@ -3181,7 +3181,8 @@ static int edge_startup(struct usb_serial *serial) } if (!interrupt_in_found || !bulk_in_found || !bulk_out_found) { - err("Error - the proper endpoints were not found!"); + dev_err(&dev->dev, "Error - the proper endpoints " + "were not found!\n"); return -ENODEV; } @@ -3190,8 +3191,9 @@ static int edge_startup(struct usb_serial *serial) response = usb_submit_urb(edge_serial->interrupt_read_urb, GFP_KERNEL); if (response) - err("%s - Error %d submitting control urb", - __func__, response); + dev_err(&dev->dev, + "%s - Error %d submitting control urb\n", + __func__, response); } return response; } @@ -3253,7 +3255,8 @@ static int __init edgeport_init(void) if (retval) goto failed_usb_register; atomic_set(&CmdUrbs, 0); - info(DRIVER_DESC " " DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; failed_usb_register: diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index 541dd8e6e7a2..c3cdd00ddc41 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c @@ -2978,7 +2978,8 @@ static int __init edgeport_init(void) retval = usb_register(&io_driver); if (retval) goto failed_usb_register; - info(DRIVER_DESC " " DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; failed_usb_register: usb_serial_deregister(&edgeport_2port_device); diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c index 2affa9c118b2..132be74d2b89 100644 --- a/drivers/usb/serial/ipaq.c +++ b/drivers/usb/serial/ipaq.c @@ -608,7 +608,7 @@ static int ipaq_open(struct tty_struct *tty, bytes_out = 0; priv = kmalloc(sizeof(struct ipaq_private), GFP_KERNEL); if (priv == NULL) { - err("%s - Out of memory", __func__); + dev_err(&port->dev, "%s - Out of memory\n", __func__); return -ENOMEM; } usb_set_serial_port_data(port, priv); @@ -693,8 +693,7 @@ static int ipaq_open(struct tty_struct *tty, } if (!retries && result) { - err("%s - failed doing control urb, error %d", __func__, - result); + dev_err(&port->dev, "%s - failed doing control urb, error %d\n", __func__, result); goto error; } @@ -707,8 +706,9 @@ static int ipaq_open(struct tty_struct *tty, result = usb_submit_urb(port->read_urb, GFP_KERNEL); if (result) { - err("%s - failed submitting read urb, error %d", - __func__, result); + dev_err(&port->dev, + "%s - failed submitting read urb, error %d\n", + __func__, result); goto error; } @@ -716,7 +716,7 @@ static int ipaq_open(struct tty_struct *tty, enomem: result = -ENOMEM; - err("%s - Out of memory", __func__); + dev_err(&port->dev, "%s - Out of memory\n", __func__); error: ipaq_destroy_lists(port); kfree(priv); @@ -781,8 +781,9 @@ static void ipaq_read_bulk_callback(struct urb *urb) ipaq_read_bulk_callback, port); result = usb_submit_urb(port->read_urb, GFP_ATOMIC); if (result) - err("%s - failed resubmitting read urb, error %d", - __func__, result); + dev_err(&port->dev, + "%s - failed resubmitting read urb, error %d\n", + __func__, result); return; } @@ -847,7 +848,8 @@ static int ipaq_write_bulk(struct usb_serial_port *port, spin_unlock_irqrestore(&write_list_lock, flags); result = usb_submit_urb(port->write_urb, GFP_ATOMIC); if (result) - err("%s - failed submitting write urb, error %d", + dev_err(&port->dev, + "%s - failed submitting write urb, error %d\n", __func__, result); } else { spin_unlock_irqrestore(&write_list_lock, flags); @@ -909,8 +911,9 @@ static void ipaq_write_bulk_callback(struct urb *urb) spin_unlock_irqrestore(&write_list_lock, flags); result = usb_submit_urb(port->write_urb, GFP_ATOMIC); if (result) - err("%s - failed submitting write urb, error %d", - __func__, result); + dev_err(&port->dev, + "%s - failed submitting write urb, error %d\n", + __func__, result); } else { priv->active = 0; spin_unlock_irqrestore(&write_list_lock, flags); @@ -957,7 +960,7 @@ static int ipaq_startup(struct usb_serial *serial) { dbg("%s", __func__); if (serial->dev->actconfig->desc.bConfigurationValue != 1) { - err("active config #%d != 1 ??", + dev_err(&serial->dev->dev, "active config #%d != 1 ??\n", serial->dev->actconfig->desc.bConfigurationValue); return -ENODEV; } @@ -976,7 +979,6 @@ static int __init ipaq_init(void) retval = usb_serial_register(&ipaq_device); if (retval) goto failed_usb_serial_register; - info(DRIVER_DESC " " DRIVER_VERSION); if (vendor) { ipaq_id_table[0].idVendor = vendor; ipaq_id_table[0].idProduct = product; @@ -985,6 +987,8 @@ static int __init ipaq_init(void) if (retval) goto failed_usb_register; + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; failed_usb_register: usb_serial_deregister(&ipaq_device); diff --git a/drivers/usb/serial/ipw.c b/drivers/usb/serial/ipw.c index 480cac27d646..3ac59a8a980f 100644 --- a/drivers/usb/serial/ipw.c +++ b/drivers/usb/serial/ipw.c @@ -485,7 +485,8 @@ static int usb_ipw_init(void) usb_serial_deregister(&ipw_device); return retval; } - info(DRIVER_DESC " " DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; } diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c index 45d4043e04ab..b679a556b98d 100644 --- a/drivers/usb/serial/ir-usb.c +++ b/drivers/usb/serial/ir-usb.c @@ -602,7 +602,8 @@ static int __init ir_init(void) if (retval) goto failed_usb_register; - info(DRIVER_DESC " " DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c index 53710aa7eadd..e320972cb227 100644 --- a/drivers/usb/serial/iuu_phoenix.c +++ b/drivers/usb/serial/iuu_phoenix.c @@ -1185,7 +1185,8 @@ static int __init iuu_init(void) retval = usb_register(&iuu_driver); if (retval) goto failed_usb_register; - info(DRIVER_DESC " " DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; failed_usb_register: usb_serial_deregister(&iuu_device); diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index 15447af48691..9878c0fb3859 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -217,7 +217,8 @@ static int __init keyspan_init(void) if (retval) goto failed_usb_register; - info(DRIVER_VERSION ":" DRIVER_DESC); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; failed_usb_register: diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c index 99e9a14c5bf6..bf1ae247da66 100644 --- a/drivers/usb/serial/keyspan_pda.c +++ b/drivers/usb/serial/keyspan_pda.c @@ -742,11 +742,13 @@ static int keyspan_pda_fake_startup(struct usb_serial *serial) fw_name = "keyspan_pda/xircom_pgs.fw"; #endif else { - err("%s: unknown vendor, aborting.", __func__); + dev_err(&serial->dev->dev, "%s: unknown vendor, aborting.\n", + __func__); return -ENODEV; } if (request_ihex_firmware(&fw, fw_name, &serial->dev->dev)) { - err("failed to load firmware \"%s\"\n", fw_name); + dev_err(&serial->dev->dev, "failed to load firmware \"%s\"\n", + fw_name); return -ENOENT; } record = (const struct ihex_binrec *)fw->data; @@ -756,10 +758,10 @@ static int keyspan_pda_fake_startup(struct usb_serial *serial) (unsigned char *)record->data, be16_to_cpu(record->len), 0xa0); if (response < 0) { - err("ezusb_writememory failed for Keyspan PDA " - "firmware (%d %04X %p %d)", - response, be32_to_cpu(record->addr), - record->data, be16_to_cpu(record->len)); + dev_err(&serial->dev->dev, "ezusb_writememory failed " + "for Keyspan PDA firmware (%d %04X %p %d)\n", + response, be32_to_cpu(record->addr), + record->data, be16_to_cpu(record->len)); break; } record = ihex_next_binrec(record); @@ -874,7 +876,8 @@ static int __init keyspan_pda_init(void) retval = usb_register(&keyspan_pda_driver); if (retval) goto failed_usb_register; - info(DRIVER_DESC " " DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; failed_usb_register: #ifdef XIRCOM diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c index ff3a07f5102f..dc36a052766f 100644 --- a/drivers/usb/serial/kl5kusb105.c +++ b/drivers/usb/serial/kl5kusb105.c @@ -182,12 +182,12 @@ static int klsi_105_chg_port_settings(struct usb_serial_port *port, sizeof(struct klsi_105_port_settings), KLSI_TIMEOUT); if (rc < 0) - err("Change port settings failed (error = %d)", rc); - info("%s - %d byte block, baudrate %x, databits %d, u1 %d, u2 %d", - __func__, - settings->pktlen, - settings->baudrate, settings->databits, - settings->unknown1, settings->unknown2); + dev_err(&port->dev, + "Change port settings failed (error = %d)\n", rc); + dev_info(&port->serial->dev->dev, + "%d byte block, baudrate %x, databits %d, u1 %d, u2 %d\n", + settings->pktlen, settings->baudrate, settings->databits, + settings->unknown1, settings->unknown2); return rc; } /* klsi_105_chg_port_settings */ @@ -215,7 +215,7 @@ static int klsi_105_get_line_state(struct usb_serial_port *port, __u8 status_buf[KLSI_STATUSBUF_LEN] = { -1, -1}; __u16 status; - info("%s - sending SIO Poll request", __func__); + dev_info(&port->serial->dev->dev, "sending SIO Poll request\n"); rc = usb_control_msg(port->serial->dev, usb_rcvctrlpipe(port->serial->dev, 0), KL5KUSB105A_SIO_POLL, @@ -226,12 +226,13 @@ static int klsi_105_get_line_state(struct usb_serial_port *port, 10000 ); if (rc < 0) - err("Reading line status failed (error = %d)", rc); + dev_err(&port->dev, "Reading line status failed (error = %d)\n", + rc); else { status = get_unaligned_le16(status_buf); - info("%s - read status %x %x", __func__, - status_buf[0], status_buf[1]); + dev_info(&port->serial->dev->dev, "read status %x %x", + status_buf[0], status_buf[1]); *line_state_p = klsi_105_status2linestate(status); } @@ -280,15 +281,16 @@ static int klsi_105_startup(struct usb_serial *serial) priv->write_urb_pool[j] = urb; if (urb == NULL) { - err("No more urbs???"); + dev_err(&serial->dev->dev, "No more urbs???\n"); goto err_cleanup; } urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL); if (!urb->transfer_buffer) { - err("%s - out of memory for urb buffers.", - __func__); + dev_err(&serial->dev->dev, + "%s - out of memory for urb buffers.\n", + __func__); goto err_cleanup; } } @@ -409,7 +411,8 @@ static int klsi_105_open(struct tty_struct *tty, rc = usb_submit_urb(port->read_urb, GFP_KERNEL); if (rc) { - err("%s - failed submitting read urb, error %d", __func__, rc); + dev_err(&port->dev, "%s - failed submitting read urb, " + "error %d\n", __func__, rc); retval = rc; goto exit; } @@ -424,7 +427,7 @@ static int klsi_105_open(struct tty_struct *tty, 0, KLSI_TIMEOUT); if (rc < 0) { - err("Enabling read failed (error = %d)", rc); + dev_err(&port->dev, "Enabling read failed (error = %d)\n", rc); retval = rc; } else dbg("%s - enabled reading", __func__); @@ -464,7 +467,8 @@ static void klsi_105_close(struct tty_struct *tty, NULL, 0, KLSI_TIMEOUT); if (rc < 0) - err("Disabling read failed (error = %d)", rc); + dev_err(&port->dev, + "Disabling read failed (error = %d)\n", rc); } mutex_unlock(&port->serial->disc_mutex); @@ -475,8 +479,9 @@ static void klsi_105_close(struct tty_struct *tty, /* FIXME */ /* wgg - do I need this? I think so. */ usb_kill_urb(port->interrupt_in_urb); - info("kl5kusb105 port stats: %ld bytes in, %ld bytes out", - priv->bytes_in, priv->bytes_out); + dev_info(&port->serial->dev->dev, + "port stats: %ld bytes in, %ld bytes out\n", + priv->bytes_in, priv->bytes_out); } /* klsi_105_close */ @@ -522,7 +527,9 @@ static int klsi_105_write(struct tty_struct *tty, urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_ATOMIC); if (urb->transfer_buffer == NULL) { - err("%s - no more kernel memory...", __func__); + dev_err(&port->dev, + "%s - no more kernel memory...\n", + __func__); goto exit; } } @@ -549,8 +556,9 @@ static int klsi_105_write(struct tty_struct *tty, /* send the data out the bulk port */ result = usb_submit_urb(urb, GFP_ATOMIC); if (result) { - err("%s - failed submitting write urb, error %d", - __func__, result); + dev_err(&port->dev, + "%s - failed submitting write urb, error %d\n", + __func__, result); goto exit; } buf += size; @@ -694,8 +702,9 @@ static void klsi_105_read_bulk_callback(struct urb *urb) port); rc = usb_submit_urb(port->read_urb, GFP_ATOMIC); if (rc) - err("%s - failed resubmitting read urb, error %d", - __func__, rc); + dev_err(&port->dev, + "%s - failed resubmitting read urb, error %d\n", + __func__, rc); } /* klsi_105_read_bulk_callback */ @@ -799,7 +808,8 @@ static void klsi_105_set_termios(struct tty_struct *tty, priv->cfg.databits = kl5kusb105a_dtb_8; break; default: - err("CSIZE was not CS5-CS8, using default of 8"); + dev_err(&port->dev, + "CSIZE was not CS5-CS8, using default of 8\n"); priv->cfg.databits = kl5kusb105a_dtb_8; break; } @@ -886,7 +896,8 @@ static int klsi_105_tiocmget(struct tty_struct *tty, struct file *file) rc = klsi_105_get_line_state(port, &line_state); if (rc < 0) { - err("Reading line control failed (error = %d)", rc); + dev_err(&port->dev, + "Reading line control failed (error = %d)\n", rc); /* better return value? EAGAIN? */ return rc; } @@ -944,8 +955,9 @@ static void klsi_105_unthrottle(struct tty_struct *tty) port->read_urb->dev = port->serial->dev; result = usb_submit_urb(port->read_urb, GFP_ATOMIC); if (result) - err("%s - failed submitting read urb, error %d", __func__, - result); + dev_err(&port->dev, + "%s - failed submitting read urb, error %d\n", + __func__, result); } @@ -960,7 +972,8 @@ static int __init klsi_105_init(void) if (retval) goto failed_usb_register; - info(DRIVER_DESC " " DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; failed_usb_register: usb_serial_deregister(&kl5kusb105d_device); diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c index cfcf37c2b957..6286baad9392 100644 --- a/drivers/usb/serial/kobil_sct.c +++ b/drivers/usb/serial/kobil_sct.c @@ -744,8 +744,8 @@ static int __init kobil_init(void) if (retval) goto failed_usb_register; - info(DRIVER_VERSION " " DRIVER_AUTHOR); - info(DRIVER_DESC); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; failed_usb_register: diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c index 9b2cef81cde0..07710cf31d0d 100644 --- a/drivers/usb/serial/mct_u232.c +++ b/drivers/usb/serial/mct_u232.c @@ -246,7 +246,8 @@ static int mct_u232_set_baud_rate(struct tty_struct *tty, 0, 0, &divisor, MCT_U232_SET_BAUD_RATE_SIZE, WDR_TIMEOUT); if (rc < 0) /*FIXME: What value speed results */ - err("Set BAUD RATE %d failed (error = %d)", value, rc); + dev_err(&port->dev, "Set BAUD RATE %d failed (error = %d)\n", + value, rc); else tty_encode_baud_rate(tty, speed, speed); dbg("set_baud_rate: value: 0x%x, divisor: 0x%x", value, divisor); @@ -274,8 +275,9 @@ static int mct_u232_set_baud_rate(struct tty_struct *tty, 0, 0, &zero_byte, MCT_U232_SET_UNKNOWN1_SIZE, WDR_TIMEOUT); if (rc < 0) - err("Sending USB device request code %d failed (error = %d)", - MCT_U232_SET_UNKNOWN1_REQUEST, rc); + dev_err(&port->dev, "Sending USB device request code %d " + "failed (error = %d)\n", MCT_U232_SET_UNKNOWN1_REQUEST, + rc); if (port && C_CRTSCTS(tty)) cts_enable_byte = 1; @@ -288,8 +290,8 @@ static int mct_u232_set_baud_rate(struct tty_struct *tty, 0, 0, &cts_enable_byte, MCT_U232_SET_CTS_SIZE, WDR_TIMEOUT); if (rc < 0) - err("Sending USB device request code %d failed (error = %d)", - MCT_U232_SET_CTS_REQUEST, rc); + dev_err(&port->dev, "Sending USB device request code %d " + "failed (error = %d)\n", MCT_U232_SET_CTS_REQUEST, rc); return rc; } /* mct_u232_set_baud_rate */ @@ -303,7 +305,8 @@ static int mct_u232_set_line_ctrl(struct usb_serial *serial, unsigned char lcr) 0, 0, &lcr, MCT_U232_SET_LINE_CTRL_SIZE, WDR_TIMEOUT); if (rc < 0) - err("Set LINE CTRL 0x%x failed (error = %d)", lcr, rc); + dev_err(&serial->dev->dev, + "Set LINE CTRL 0x%x failed (error = %d)\n", lcr, rc); dbg("set_line_ctrl: 0x%x", lcr); return rc; } /* mct_u232_set_line_ctrl */ @@ -325,7 +328,8 @@ static int mct_u232_set_modem_ctrl(struct usb_serial *serial, 0, 0, &mcr, MCT_U232_SET_MODEM_CTRL_SIZE, WDR_TIMEOUT); if (rc < 0) - err("Set MODEM CTRL 0x%x failed (error = %d)", mcr, rc); + dev_err(&serial->dev->dev, + "Set MODEM CTRL 0x%x failed (error = %d)\n", mcr, rc); dbg("set_modem_ctrl: state=0x%x ==> mcr=0x%x", control_state, mcr); return rc; @@ -341,7 +345,8 @@ static int mct_u232_get_modem_stat(struct usb_serial *serial, 0, 0, msr, MCT_U232_GET_MODEM_STAT_SIZE, WDR_TIMEOUT); if (rc < 0) { - err("Get MODEM STATus failed (error = %d)", rc); + dev_err(&serial->dev->dev, + "Get MODEM STATus failed (error = %d)\n", rc); *msr = 0; } dbg("get_modem_stat: 0x%x", *msr); @@ -470,8 +475,9 @@ static int mct_u232_open(struct tty_struct *tty, port->read_urb->dev = port->serial->dev; retval = usb_submit_urb(port->read_urb, GFP_KERNEL); if (retval) { - err("usb_submit_urb(read bulk) failed pipe 0x%x err %d", - port->read_urb->pipe, retval); + dev_err(&port->dev, + "usb_submit_urb(read bulk) failed pipe 0x%x err %d\n", + port->read_urb->pipe, retval); goto error; } @@ -479,8 +485,9 @@ static int mct_u232_open(struct tty_struct *tty, retval = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); if (retval) { usb_kill_urb(port->read_urb); - err(" usb_submit_urb(read int) failed pipe 0x%x err %d", - port->interrupt_in_urb->pipe, retval); + dev_err(&port->dev, + "usb_submit_urb(read int) failed pipe 0x%x err %d", + port->interrupt_in_urb->pipe, retval); goto error; } return 0; @@ -612,8 +619,9 @@ static void mct_u232_read_int_callback(struct urb *urb) exit: retval = usb_submit_urb(urb, GFP_ATOMIC); if (retval) - err("%s - usb_submit_urb failed with result %d", - __func__, retval); + dev_err(&port->dev, + "%s - usb_submit_urb failed with result %d\n", + __func__, retval); } /* mct_u232_read_int_callback */ static void mct_u232_set_termios(struct tty_struct *tty, @@ -680,7 +688,8 @@ static void mct_u232_set_termios(struct tty_struct *tty, case CS8: last_lcr |= MCT_U232_DATA_BITS_8; break; default: - err("CSIZE was not CS5-CS8, using default of 8"); + dev_err(&port->dev, + "CSIZE was not CS5-CS8, using default of 8\n"); last_lcr |= MCT_U232_DATA_BITS_8; break; } @@ -817,7 +826,8 @@ static int __init mct_u232_init(void) retval = usb_register(&mct_u232_driver); if (retval) goto failed_usb_register; - info(DRIVER_DESC " " DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; failed_usb_register: usb_serial_deregister(&mct_u232_device); diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index 7b538caec37f..e772cc0a97fd 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -355,14 +355,16 @@ static int mos7720_open(struct tty_struct *tty, mos7720_port->write_urb_pool[j] = urb; if (urb == NULL) { - err("No more urbs???"); + dev_err(&port->dev, "No more urbs???\n"); continue; } urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL); if (!urb->transfer_buffer) { - err("%s-out of memory for urb buffers.", __func__); + dev_err(&port->dev, + "%s-out of memory for urb buffers.\n", + __func__); usb_free_urb(mos7720_port->write_urb_pool[j]); mos7720_port->write_urb_pool[j] = NULL; continue; @@ -694,7 +696,8 @@ static int mos7720_write(struct tty_struct *tty, struct usb_serial_port *port, urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL); if (urb->transfer_buffer == NULL) { - err("%s no more kernel memory...", __func__); + dev_err(&port->dev, "%s no more kernel memory...\n", + __func__); goto exit; } } @@ -714,8 +717,8 @@ static int mos7720_write(struct tty_struct *tty, struct usb_serial_port *port, /* send it down the pipe */ status = usb_submit_urb(urb, GFP_ATOMIC); if (status) { - err("%s - usb_submit_urb(write bulk) failed with status = %d", - __func__, status); + dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " + "with status = %d\n", __func__, status); bytes_sent = status; goto exit; } @@ -975,7 +978,7 @@ static int send_cmd_write_baud_rate(struct moschip_port *mos7720_port, /* Calculate the Divisor */ status = calc_baud_rate_divisor(baudrate, &divisor); if (status) { - err("%s - bad baud rate", __func__); + dev_err(&port->dev, "%s - bad baud rate\n", __func__); return status; } @@ -1478,7 +1481,7 @@ static int mos7720_startup(struct usb_serial *serial) /* create our private serial structure */ mos7720_serial = kzalloc(sizeof(struct moschip_serial), GFP_KERNEL); if (mos7720_serial == NULL) { - err("%s - Out of memory", __func__); + dev_err(&dev->dev, "%s - Out of memory\n", __func__); return -ENOMEM; } @@ -1491,7 +1494,7 @@ static int mos7720_startup(struct usb_serial *serial) for (i = 0; i < serial->num_ports; ++i) { mos7720_port = kzalloc(sizeof(struct moschip_port), GFP_KERNEL); if (mos7720_port == NULL) { - err("%s - Out of memory", __func__); + dev_err(&dev->dev, "%s - Out of memory\n", __func__); usb_set_serial_data(serial, NULL); kfree(mos7720_serial); return -ENOMEM; @@ -1585,7 +1588,8 @@ static int __init moschip7720_init(void) if (retval) goto failed_port_device_register; - info(DRIVER_DESC " " DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); /* Register with the usb */ retval = usb_register(&usb_driver); diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index 60543d79ef56..fda4a6421c44 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -844,7 +844,7 @@ static int mos7840_open(struct tty_struct *tty, mos7840_port->write_urb_pool[j] = urb; if (urb == NULL) { - err("No more urbs???"); + dev_err(&port->dev, "No more urbs???\n"); continue; } @@ -853,7 +853,9 @@ static int mos7840_open(struct tty_struct *tty, if (!urb->transfer_buffer) { usb_free_urb(urb); mos7840_port->write_urb_pool[j] = NULL; - err("%s-out of memory for urb buffers.", __func__); + dev_err(&port->dev, + "%s-out of memory for urb buffers.\n", + __func__); continue; } } @@ -1021,8 +1023,8 @@ static int mos7840_open(struct tty_struct *tty, usb_submit_urb(serial->port[0]->interrupt_in_urb, GFP_KERNEL); if (response) { - err("%s - Error %d submitting interrupt urb", - __func__, response); + dev_err(&port->dev, "%s - Error %d submitting " + "interrupt urb\n", __func__, response); } } @@ -1055,8 +1057,8 @@ static int mos7840_open(struct tty_struct *tty, port->bulk_in_endpointAddress); response = usb_submit_urb(mos7840_port->read_urb, GFP_KERNEL); if (response) { - err("%s - Error %d submitting control urb", __func__, - response); + dev_err(&port->dev, "%s - Error %d submitting control urb\n", + __func__, response); } /* initialize our wait queues */ @@ -1492,7 +1494,8 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port, kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL); if (urb->transfer_buffer == NULL) { - err("%s no more kernel memory...", __func__); + dev_err(&port->dev, "%s no more kernel memory...\n", + __func__); goto exit; } } @@ -1517,8 +1520,8 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port, if (status) { mos7840_port->busy[i] = 0; - err("%s - usb_submit_urb(write bulk) failed with status = %d", - __func__, status); + dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " + "with status = %d\n", __func__, status); bytes_sent = status; goto exit; } @@ -1856,8 +1859,7 @@ static int mos7840_send_cmd_write_baud_rate(struct moschip_port *mos7840_port, /* Calculate the Divisor */ if (status) { - err("%s - bad baud rate", __func__); - dbg("%s\n", "bad baud rate"); + dev_err(&port->dev, "%s - bad baud rate\n", __func__); return status; } /* Enable access to divisor latch */ @@ -2446,7 +2448,7 @@ static int mos7840_startup(struct usb_serial *serial) for (i = 0; i < serial->num_ports; ++i) { mos7840_port = kzalloc(sizeof(struct moschip_port), GFP_KERNEL); if (mos7840_port == NULL) { - err("%s - Out of memory", __func__); + dev_err(&dev->dev, "%s - Out of memory\n", __func__); status = -ENOMEM; i--; /* don't follow NULL pointer cleaning up */ goto error; @@ -2743,7 +2745,8 @@ static int __init moschip7840_init(void) goto failed_port_device_register; dbg("%s\n", "Entring..."); - info(DRIVER_DESC " " DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); /* Register with the usb */ retval = usb_register(&io_driver); diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c index c4d70b0f1e48..df6539712726 100644 --- a/drivers/usb/serial/omninet.c +++ b/drivers/usb/serial/omninet.c @@ -154,8 +154,8 @@ static int omninet_attach(struct usb_serial *serial) od = kmalloc(sizeof(struct omninet_data), GFP_KERNEL); if (!od) { - err("%s- kmalloc(%Zd) failed.", - __func__, sizeof(struct omninet_data)); + dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", + __func__, sizeof(struct omninet_data)); return -ENOMEM; } usb_set_serial_port_data(port, od); @@ -183,8 +183,9 @@ static int omninet_open(struct tty_struct *tty, omninet_read_bulk_callback, port); result = usb_submit_urb(port->read_urb, GFP_KERNEL); if (result) - err("%s - failed submitting read urb, error %d", - __func__, result); + dev_err(&port->dev, + "%s - failed submitting read urb, error %d\n", + __func__, result); return result; } @@ -244,8 +245,9 @@ static void omninet_read_bulk_callback(struct urb *urb) omninet_read_bulk_callback, port); result = usb_submit_urb(urb, GFP_ATOMIC); if (result) - err("%s - failed resubmitting read urb, error %d", - __func__, result); + dev_err(&port->dev, + "%s - failed resubmitting read urb, error %d\n", + __func__, result); return; } @@ -298,8 +300,9 @@ static int omninet_write(struct tty_struct *tty, struct usb_serial_port *port, result = usb_submit_urb(wport->write_urb, GFP_ATOMIC); if (result) { wport->write_urb_busy = 0; - err("%s - failed submitting write urb, error %d", - __func__, result); + dev_err(&port->dev, + "%s - failed submitting write urb, error %d\n", + __func__, result); } else result = count; @@ -364,7 +367,8 @@ static int __init omninet_init(void) retval = usb_register(&omninet_driver); if (retval) goto failed_usb_register; - info(DRIVER_VERSION ":" DRIVER_DESC); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; failed_usb_register: usb_serial_deregister(&zyxel_omninet_device); diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 6b1727e751e3..bd07eaa300b9 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -79,38 +79,36 @@ static int option_send_setup(struct tty_struct *tty, struct usb_serial_port *po #define OPTION_PRODUCT_VIPER 0x6600 #define OPTION_PRODUCT_VIPER_BUS 0x6601 #define OPTION_PRODUCT_GT_MAX_READY 0x6701 -#define OPTION_PRODUCT_GT_MAX 0x6711 #define OPTION_PRODUCT_FUJI_MODEM_LIGHT 0x6721 #define OPTION_PRODUCT_FUJI_MODEM_GT 0x6741 #define OPTION_PRODUCT_FUJI_MODEM_EX 0x6761 -#define OPTION_PRODUCT_FUJI_NETWORK_LIGHT 0x6731 -#define OPTION_PRODUCT_FUJI_NETWORK_GT 0x6751 -#define OPTION_PRODUCT_FUJI_NETWORK_EX 0x6771 #define OPTION_PRODUCT_KOI_MODEM 0x6800 -#define OPTION_PRODUCT_KOI_NETWORK 0x6811 #define OPTION_PRODUCT_SCORPION_MODEM 0x6901 -#define OPTION_PRODUCT_SCORPION_NETWORK 0x6911 #define OPTION_PRODUCT_ETNA_MODEM 0x7001 -#define OPTION_PRODUCT_ETNA_NETWORK 0x7011 #define OPTION_PRODUCT_ETNA_MODEM_LITE 0x7021 #define OPTION_PRODUCT_ETNA_MODEM_GT 0x7041 #define OPTION_PRODUCT_ETNA_MODEM_EX 0x7061 -#define OPTION_PRODUCT_ETNA_NETWORK_LITE 0x7031 -#define OPTION_PRODUCT_ETNA_NETWORK_GT 0x7051 -#define OPTION_PRODUCT_ETNA_NETWORK_EX 0x7071 #define OPTION_PRODUCT_ETNA_KOI_MODEM 0x7100 -#define OPTION_PRODUCT_ETNA_KOI_NETWORK 0x7111 #define HUAWEI_VENDOR_ID 0x12D1 #define HUAWEI_PRODUCT_E600 0x1001 #define HUAWEI_PRODUCT_E220 0x1003 #define HUAWEI_PRODUCT_E220BIS 0x1004 #define HUAWEI_PRODUCT_E1401 0x1401 +#define HUAWEI_PRODUCT_E1402 0x1402 #define HUAWEI_PRODUCT_E1403 0x1403 +#define HUAWEI_PRODUCT_E1404 0x1404 #define HUAWEI_PRODUCT_E1405 0x1405 #define HUAWEI_PRODUCT_E1406 0x1406 +#define HUAWEI_PRODUCT_E1407 0x1407 #define HUAWEI_PRODUCT_E1408 0x1408 #define HUAWEI_PRODUCT_E1409 0x1409 +#define HUAWEI_PRODUCT_E140A 0x140A +#define HUAWEI_PRODUCT_E140B 0x140B +#define HUAWEI_PRODUCT_E140C 0x140C +#define HUAWEI_PRODUCT_E140D 0x140D +#define HUAWEI_PRODUCT_E140E 0x140E +#define HUAWEI_PRODUCT_E140F 0x140F #define HUAWEI_PRODUCT_E1410 0x1410 #define HUAWEI_PRODUCT_E1411 0x1411 #define HUAWEI_PRODUCT_E1412 0x1412 @@ -121,6 +119,44 @@ static int option_send_setup(struct tty_struct *tty, struct usb_serial_port *po #define HUAWEI_PRODUCT_E1417 0x1417 #define HUAWEI_PRODUCT_E1418 0x1418 #define HUAWEI_PRODUCT_E1419 0x1419 +#define HUAWEI_PRODUCT_E141A 0x141A +#define HUAWEI_PRODUCT_E141B 0x141B +#define HUAWEI_PRODUCT_E141C 0x141C +#define HUAWEI_PRODUCT_E141D 0x141D +#define HUAWEI_PRODUCT_E141E 0x141E +#define HUAWEI_PRODUCT_E141F 0x141F +#define HUAWEI_PRODUCT_E1420 0x1420 +#define HUAWEI_PRODUCT_E1421 0x1421 +#define HUAWEI_PRODUCT_E1422 0x1422 +#define HUAWEI_PRODUCT_E1423 0x1423 +#define HUAWEI_PRODUCT_E1424 0x1424 +#define HUAWEI_PRODUCT_E1425 0x1425 +#define HUAWEI_PRODUCT_E1426 0x1426 +#define HUAWEI_PRODUCT_E1427 0x1427 +#define HUAWEI_PRODUCT_E1428 0x1428 +#define HUAWEI_PRODUCT_E1429 0x1429 +#define HUAWEI_PRODUCT_E142A 0x142A +#define HUAWEI_PRODUCT_E142B 0x142B +#define HUAWEI_PRODUCT_E142C 0x142C +#define HUAWEI_PRODUCT_E142D 0x142D +#define HUAWEI_PRODUCT_E142E 0x142E +#define HUAWEI_PRODUCT_E142F 0x142F +#define HUAWEI_PRODUCT_E1430 0x1430 +#define HUAWEI_PRODUCT_E1431 0x1431 +#define HUAWEI_PRODUCT_E1432 0x1432 +#define HUAWEI_PRODUCT_E1433 0x1433 +#define HUAWEI_PRODUCT_E1434 0x1434 +#define HUAWEI_PRODUCT_E1435 0x1435 +#define HUAWEI_PRODUCT_E1436 0x1436 +#define HUAWEI_PRODUCT_E1437 0x1437 +#define HUAWEI_PRODUCT_E1438 0x1438 +#define HUAWEI_PRODUCT_E1439 0x1439 +#define HUAWEI_PRODUCT_E143A 0x143A +#define HUAWEI_PRODUCT_E143B 0x143B +#define HUAWEI_PRODUCT_E143C 0x143C +#define HUAWEI_PRODUCT_E143D 0x143D +#define HUAWEI_PRODUCT_E143E 0x143E +#define HUAWEI_PRODUCT_E143F 0x143F #define NOVATELWIRELESS_VENDOR_ID 0x1410 @@ -218,8 +254,19 @@ static int option_send_setup(struct tty_struct *tty, struct usb_serial_port *po /* ZTE PRODUCTS */ #define ZTE_VENDOR_ID 0x19d2 #define ZTE_PRODUCT_MF628 0x0015 +#define ZTE_PRODUCT_MF626 0x0031 #define ZTE_PRODUCT_CDMA_TECH 0xfffe +/* Ericsson products */ +#define ERICSSON_VENDOR_ID 0x0bdb +#define ERICSSON_PRODUCT_F3507G 0x1900 + +/* Pantech products */ +#define PANTECH_VENDOR_ID 0x106c +#define PANTECH_PRODUCT_PC5740 0x3701 +#define PANTECH_PRODUCT_PC5750 0x3702 /* PX-500 */ +#define PANTECH_PRODUCT_UM150 0x3711 + static struct usb_device_id option_ids[] = { { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) }, { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) }, @@ -235,36 +282,34 @@ static struct usb_device_id option_ids[] = { { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER) }, { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER_BUS) }, { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX_READY) }, - { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX) }, { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) }, { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) }, { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) }, - { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_LIGHT) }, - { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_GT) }, - { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_EX) }, { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) }, - { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_NETWORK) }, { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) }, - { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_NETWORK) }, { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) }, - { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK) }, { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) }, { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) }, { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) }, - { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_LITE) }, - { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_GT) }, - { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_EX) }, { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) }, - { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_NETWORK) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1401, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1402, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1403, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1404, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1405, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1406, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1407, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1408, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1409, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140A, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140B, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140C, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140D, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140E, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140F, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1410, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1411, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1412, 0xff, 0xff, 0xff) }, @@ -275,6 +320,44 @@ static struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1417, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1418, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1419, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141A, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141B, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141C, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141D, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141E, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141F, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1420, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1421, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1422, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1423, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1424, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1425, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1426, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1427, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1428, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1429, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142A, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142B, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142C, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142D, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142E, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142F, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1430, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1431, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1432, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1433, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1434, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1435, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1436, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1437, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1438, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1439, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143A, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143B, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143C, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143D, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143E, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143F, 0xff, 0xff, 0xff) }, { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_9508) }, { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */ { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */ @@ -318,7 +401,8 @@ static struct usb_device_id option_ids[] = { { USB_DEVICE(DELL_VENDOR_ID, 0x8136) }, /* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */ { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */ { USB_DEVICE(DELL_VENDOR_ID, 0x8138) }, /* Dell Wireless 5520 Voda I Mobile Broadband (3G HSDPA) Minicard */ - { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) }, + { USB_DEVICE(DELL_VENDOR_ID, 0x8147) }, /* Dell Wireless 5530 Mobile Broadband (3G HSPA) Mini-Card */ + { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) }, /* ADU-E100, ADU-310 */ { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) }, { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) }, { USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) }, @@ -347,8 +431,13 @@ static struct usb_device_id option_ids[] = { { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */ { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */ { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864E) }, + { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF626) }, { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF628) }, { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH) }, + { USB_DEVICE(ERICSSON_VENDOR_ID, ERICSSON_PRODUCT_F3507G) }, + { USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_PC5740) }, + { USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_PC5750) }, + { USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_UM150) }, { } /* Terminating entry */ }; MODULE_DEVICE_TABLE(usb, option_ids); @@ -427,7 +516,8 @@ static int __init option_init(void) if (retval) goto failed_driver_register; - info(DRIVER_DESC ": " DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 908437847165..491c8857b644 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -1147,7 +1147,7 @@ static int __init pl2303_init(void) retval = usb_register(&pl2303_driver); if (retval) goto failed_usb_register; - info(DRIVER_DESC); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC "\n"); return 0; failed_usb_register: usb_serial_deregister(&pl2303_device); diff --git a/drivers/usb/serial/safe_serial.c b/drivers/usb/serial/safe_serial.c index 72903ac9f5c0..4b463cd140ef 100644 --- a/drivers/usb/serial/safe_serial.c +++ b/drivers/usb/serial/safe_serial.c @@ -250,17 +250,18 @@ static void safe_read_bulk_callback(struct urb *urb) if (!fcs) { int actual_length = data[length - 2] >> 2; if (actual_length <= (length - 2)) { - info("%s - actual: %d", __func__, - actual_length); + dev_info(&urb->dev->dev, "%s - actual: %d\n", + __func__, actual_length); tty_insert_flip_string(tty, data, actual_length); tty_flip_buffer_push(tty); } else { - err("%s - inconsistent lengths %d:%d", + dev_err(&port->dev, + "%s - inconsistent lengths %d:%d\n", __func__, actual_length, length); } } else { - err("%s - bad CRC %x", __func__, fcs); + dev_err(&port->dev, "%s - bad CRC %x\n", __func__, fcs); } } else { tty_insert_flip_string(tty, data, length); @@ -277,8 +278,9 @@ static void safe_read_bulk_callback(struct urb *urb) result = usb_submit_urb(urb, GFP_ATOMIC); if (result) - err("%s - failed resubmitting read urb, error %d", - __func__, result); + dev_err(&port->dev, + "%s - failed resubmitting read urb, error %d\n", + __func__, result); /* FIXME: Need a mechanism to retry later if this happens */ } @@ -369,8 +371,9 @@ static int safe_write(struct tty_struct *tty, struct usb_serial_port *port, result = usb_submit_urb(port->write_urb, GFP_KERNEL); if (result) { port->write_urb_busy = 0; - err("%s - failed submitting write urb, error %d", - __func__, result); + dev_err(&port->dev, + "%s - failed submitting write urb, error %d\n", + __func__, result); return 0; } dbg("%s urb: %p submitted", __func__, port->write_urb); @@ -428,14 +431,13 @@ static int __init safe_init(void) { int i, retval; - info(DRIVER_VERSION " " DRIVER_AUTHOR); - info(DRIVER_DESC); - info("vendor: %x product: %x safe: %d padded: %d\n", - vendor, product, safe, padded); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); /* if we have vendor / product parameters patch them into id list */ if (vendor || product) { - info("vendor: %x product: %x\n", vendor, product); + printk(KERN_INFO KBUILD_MODNAME ": vendor: %x product: %x\n", + vendor, product); for (i = 0; i < ARRAY_SIZE(id_table); i++) { if (!id_table[i].idVendor && !id_table[i].idProduct) { diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index 8b9eaf383679..0f2b67244af6 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -247,7 +247,7 @@ static int sierra_send_setup(struct tty_struct *tty, struct sierra_port_private *portdata; __u16 interface = 0; - dbg("%s", __func__); + dev_dbg(&port->dev, "%s", __func__); portdata = usb_get_serial_port_data(port); @@ -284,7 +284,7 @@ static int sierra_send_setup(struct tty_struct *tty, static void sierra_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios) { - dbg("%s", __func__); + dev_dbg(&port->dev, "%s", __func__); tty_termios_copy_hw(tty->termios, old_termios); sierra_send_setup(tty, port); } @@ -295,6 +295,7 @@ static int sierra_tiocmget(struct tty_struct *tty, struct file *file) unsigned int value; struct sierra_port_private *portdata; + dev_dbg(&port->dev, "%s", __func__); portdata = usb_get_serial_port_data(port); value = ((portdata->rts_state) ? TIOCM_RTS : 0) | @@ -334,14 +335,14 @@ static void sierra_outdat_callback(struct urb *urb) int status = urb->status; unsigned long flags; - dbg("%s - port %d", __func__, port->number); + dev_dbg(&port->dev, "%s - port %d", __func__, port->number); /* free up the transfer buffer, as usb_free_urb() does not do this */ kfree(urb->transfer_buffer); if (status) - dbg("%s - nonzero write bulk status received: %d", - __func__, status); + dev_dbg(&port->dev, "%s - nonzero write bulk status " + "received: %d", __func__, status); spin_lock_irqsave(&portdata->lock, flags); --portdata->outstanding_urbs; @@ -363,12 +364,12 @@ static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port, portdata = usb_get_serial_port_data(port); - dbg("%s: write (%d chars)", __func__, count); + dev_dbg(&port->dev, "%s: write (%d chars)", __func__, count); spin_lock_irqsave(&portdata->lock, flags); if (portdata->outstanding_urbs > N_OUT_URB) { spin_unlock_irqrestore(&portdata->lock, flags); - dbg("%s - write limit hit\n", __func__); + dev_dbg(&port->dev, "%s - write limit hit\n", __func__); return 0; } portdata->outstanding_urbs++; @@ -437,8 +438,8 @@ static void sierra_indat_callback(struct urb *urb) port = urb->context; if (status) { - dbg("%s: nonzero status: %d on endpoint %02x.", - __func__, status, endpoint); + dev_dbg(&port->dev, "%s: nonzero status: %d on" + " endpoint %02x.", __func__, status, endpoint); } else { if (urb->actual_length) { tty = tty_port_tty_get(&port->port); @@ -447,7 +448,8 @@ static void sierra_indat_callback(struct urb *urb) tty_flip_buffer_push(tty); tty_kref_put(tty); } else - dbg("%s: empty read urb received", __func__); + dev_dbg(&port->dev, "%s: empty read urb" + " received", __func__); /* Resubmit urb so we continue receiving */ if (port->port.count && status != -ESHUTDOWN) { @@ -468,15 +470,17 @@ static void sierra_instat_callback(struct urb *urb) struct sierra_port_private *portdata = usb_get_serial_port_data(port); struct usb_serial *serial = port->serial; - dbg("%s", __func__); - dbg("%s: urb %p port %p has data %p", __func__, urb, port, portdata); + dev_dbg(&port->dev, "%s", __func__); + dev_dbg(&port->dev, "%s: urb %p port %p has data %p", __func__, + urb, port, portdata); if (status == 0) { struct usb_ctrlrequest *req_pkt = (struct usb_ctrlrequest *)urb->transfer_buffer; if (!req_pkt) { - dbg("%s: NULL req_pkt\n", __func__); + dev_dbg(&port->dev, "%s: NULL req_pkt\n", + __func__); return; } if ((req_pkt->bRequestType == 0xA1) && @@ -487,7 +491,8 @@ static void sierra_instat_callback(struct urb *urb) sizeof(struct usb_ctrlrequest)); struct tty_struct *tty; - dbg("%s: signal x%x", __func__, signals); + dev_dbg(&port->dev, "%s: signal x%x", __func__, + signals); old_dcd_state = portdata->dcd_state; portdata->cts_state = 1; @@ -501,19 +506,20 @@ static void sierra_instat_callback(struct urb *urb) tty_hangup(tty); tty_kref_put(tty); } else { - dbg("%s: type %x req %x", __func__, - req_pkt->bRequestType, req_pkt->bRequest); + dev_dbg(&port->dev, "%s: type %x req %x", + __func__, req_pkt->bRequestType, + req_pkt->bRequest); } } else - dbg("%s: error %d", __func__, status); + dev_dbg(&port->dev, "%s: error %d", __func__, status); /* Resubmit urb so we continue receiving IRQ data */ if (status != -ESHUTDOWN) { urb->dev = serial->dev; err = usb_submit_urb(urb, GFP_ATOMIC); if (err) - dbg("%s: resubmit intr urb failed. (%d)", - __func__, err); + dev_dbg(&port->dev, "%s: resubmit intr urb " + "failed. (%d)", __func__, err); } } @@ -523,14 +529,14 @@ static int sierra_write_room(struct tty_struct *tty) struct sierra_port_private *portdata = usb_get_serial_port_data(port); unsigned long flags; - dbg("%s - port %d", __func__, port->number); + dev_dbg(&port->dev, "%s - port %d", __func__, port->number); /* try to give a good number back based on if we have any free urbs at * this point in time */ spin_lock_irqsave(&portdata->lock, flags); if (portdata->outstanding_urbs > N_OUT_URB * 2 / 3) { spin_unlock_irqrestore(&portdata->lock, flags); - dbg("%s - write limit hit\n", __func__); + dev_dbg(&port->dev, "%s - write limit hit\n", __func__); return 0; } spin_unlock_irqrestore(&portdata->lock, flags); @@ -549,7 +555,7 @@ static int sierra_open(struct tty_struct *tty, portdata = usb_get_serial_port_data(port); - dbg("%s", __func__); + dev_dbg(&port->dev, "%s", __func__); /* Set some sane defaults */ portdata->rts_state = 1; @@ -561,8 +567,8 @@ static int sierra_open(struct tty_struct *tty, if (!urb) continue; if (urb->dev != serial->dev) { - dbg("%s: dev %p != %p", __func__, - urb->dev, serial->dev); + dev_dbg(&port->dev, "%s: dev %p != %p", + __func__, urb->dev, serial->dev); continue; } @@ -601,7 +607,7 @@ static void sierra_close(struct tty_struct *tty, struct usb_serial *serial = port->serial; struct sierra_port_private *portdata; - dbg("%s", __func__); + dev_dbg(&port->dev, "%s", __func__); portdata = usb_get_serial_port_data(port); portdata->rts_state = 0; @@ -630,7 +636,7 @@ static int sierra_startup(struct usb_serial *serial) int i; int j; - dbg("%s", __func__); + dev_dbg(&serial->dev->dev, "%s", __func__); /* Set Device mode to D0 */ sierra_set_power_state(serial->dev, 0x0000); @@ -644,8 +650,9 @@ static int sierra_startup(struct usb_serial *serial) port = serial->port[i]; portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); if (!portdata) { - dbg("%s: kmalloc for sierra_port_private (%d) failed!.", - __func__, i); + dev_dbg(&port->dev, "%s: kmalloc for " + "sierra_port_private (%d) failed!.", + __func__, i); return -ENOMEM; } spin_lock_init(&portdata->lock); @@ -665,8 +672,8 @@ static int sierra_startup(struct usb_serial *serial) for (j = 0; j < N_IN_URB; ++j) { urb = usb_alloc_urb(0, GFP_KERNEL); if (urb == NULL) { - dbg("%s: alloc for in port failed.", - __func__); + dev_dbg(&port->dev, "%s: alloc for in " + "port failed.", __func__); continue; } /* Fill URB using supplied data. */ @@ -688,7 +695,7 @@ static void sierra_shutdown(struct usb_serial *serial) struct usb_serial_port *port; struct sierra_port_private *portdata; - dbg("%s", __func__); + dev_dbg(&serial->dev->dev, "%s", __func__); for (i = 0; i < serial->num_ports; ++i) { port = serial->port[i]; @@ -743,7 +750,8 @@ static int __init sierra_init(void) if (retval) goto failed_driver_register; - info(DRIVER_DESC ": " DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; diff --git a/drivers/usb/serial/spcp8x5.c b/drivers/usb/serial/spcp8x5.c index 1533d6e12238..a65bc2bd8e71 100644 --- a/drivers/usb/serial/spcp8x5.c +++ b/drivers/usb/serial/spcp8x5.c @@ -589,8 +589,8 @@ static void spcp8x5_set_termios(struct tty_struct *tty, case 1000000: buf[0] = 0x0b; break; default: - err("spcp825 driver does not support the baudrate " - "requested, using default of 9600."); + dev_err(&port->dev, "spcp825 driver does not support the " + "baudrate requested, using default of 9600.\n"); } /* Set Data Length : 00:5bit, 01:6bit, 10:7bit, 11:8bit */ @@ -629,7 +629,8 @@ static void spcp8x5_set_termios(struct tty_struct *tty, SET_UART_FORMAT_TYPE, SET_UART_FORMAT, uartdata, 0, NULL, 0, 100); if (i < 0) - err("Set UART format %#x failed (error = %d)", uartdata, i); + dev_err(&port->dev, "Set UART format %#x failed (error = %d)\n", + uartdata, i); dbg("0x21:0x40:0:0 %d\n", i); if (cflag & CRTSCTS) { @@ -1054,7 +1055,8 @@ static int __init spcp8x5_init(void) retval = usb_register(&spcp8x5_driver); if (retval) goto failed_usb_register; - info(DRIVER_DESC " " DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; failed_usb_register: usb_serial_deregister(&spcp8x5_device); diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index c90237d48b0e..31c42d1cae13 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -85,7 +85,6 @@ #include <linux/uaccess.h> #include <linux/usb.h> #include <linux/usb/serial.h> -#include <linux/firmware.h> #include "ti_usb_3410_5052.h" @@ -383,7 +382,8 @@ static int __init ti_init(void) if (ret) goto failed_usb; - info(TI_DRIVER_DESC " " TI_DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " TI_DRIVER_VERSION ":" + TI_DRIVER_DESC "\n"); return 0; diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index e7d4246027b2..8be3f39891c7 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -1121,7 +1121,8 @@ static int __init usb_serial_init(void) result = bus_register(&usb_serial_bus_type); if (result) { - err("%s - registering bus driver failed", __func__); + printk(KERN_ERR "usb-serial: %s - registering bus driver " + "failed\n", __func__); goto exit_bus; } @@ -1142,25 +1143,28 @@ static int __init usb_serial_init(void) tty_set_operations(usb_serial_tty_driver, &serial_ops); result = tty_register_driver(usb_serial_tty_driver); if (result) { - err("%s - tty_register_driver failed", __func__); + printk(KERN_ERR "usb-serial: %s - tty_register_driver failed\n", + __func__); goto exit_reg_driver; } /* register the USB driver */ result = usb_register(&usb_serial_driver); if (result < 0) { - err("%s - usb_register failed", __func__); + printk(KERN_ERR "usb-serial: %s - usb_register failed\n", + __func__); goto exit_tty; } /* register the generic driver, if we should */ result = usb_serial_generic_register(debug); if (result < 0) { - err("%s - registering generic driver failed", __func__); + printk(KERN_ERR "usb-serial: %s - registering generic " + "driver failed\n", __func__); goto exit_generic; } - info(DRIVER_DESC); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC "\n"); return result; @@ -1174,7 +1178,8 @@ exit_reg_driver: bus_unregister(&usb_serial_bus_type); exit_bus: - err("%s - returning with error %d", __func__, result); + printk(KERN_ERR "usb-serial: %s - returning with error %d\n", + __func__, result); put_tty_driver(usb_serial_tty_driver); return result; } @@ -1233,11 +1238,11 @@ int usb_serial_register(struct usb_serial_driver *driver) retval = usb_serial_bus_register(driver); if (retval) { - err("problem %d when registering driver %s", - retval, driver->description); + printk(KERN_ERR "usb-serial: problem %d when registering " + "driver %s\n", retval, driver->description); list_del(&driver->driver_list); } else - info("USB Serial support registered for %s", + printk(KERN_INFO "USB Serial support registered for %s\n", driver->description); return retval; @@ -1248,7 +1253,8 @@ EXPORT_SYMBOL_GPL(usb_serial_register); void usb_serial_deregister(struct usb_serial_driver *device) { /* must be called with BKL held */ - info("USB Serial deregistering driver %s", device->description); + printk(KERN_INFO "USB Serial deregistering driver %s\n", + device->description); list_del(&device->driver_list); usb_serial_bus_deregister(device); } diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c index a6d1c75a1c89..4facce3d9364 100644 --- a/drivers/usb/serial/visor.c +++ b/drivers/usb/serial/visor.c @@ -768,7 +768,7 @@ static int visor_probe(struct usb_serial *serial, dbg("%s", __func__); if (serial->dev->actconfig->desc.bConfigurationValue != 1) { - err("active config #%d != 1 ??", + dev_err(&serial->dev->dev, "active config #%d != 1 ??\n", serial->dev->actconfig->desc.bConfigurationValue); return -ENODEV; } @@ -971,11 +971,14 @@ static int __init visor_init(void) break; } } - info( - "Untested USB device specified at time of module insertion"); - info("Warning: This is not guaranteed to work"); - info("Using a newer kernel is preferred to this method"); - info("Adding Palm OS protocol 4.x support for unknown device: 0x%x/0x%x", + printk(KERN_INFO KBUILD_MODNAME + ": Untested USB device specified at time of module insertion\n"); + printk(KERN_INFO KBUILD_MODNAME + ": Warning: This is not guaranteed to work\n"); + printk(KERN_INFO KBUILD_MODNAME + ": Using a newer kernel is preferred to this method\n"); + printk(KERN_INFO KBUILD_MODNAME + ": Adding Palm OS protocol 4.x support for unknown device: 0x%x/0x%x\n", vendor, product); } retval = usb_serial_register(&handspring_device); @@ -990,7 +993,7 @@ static int __init visor_init(void) retval = usb_register(&visor_driver); if (retval) goto failed_usb_register; - info(DRIVER_DESC); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC "\n"); return 0; failed_usb_register: diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c index 11c8b97a5177..5335d3211c07 100644 --- a/drivers/usb/serial/whiteheat.c +++ b/drivers/usb/serial/whiteheat.c @@ -303,12 +303,15 @@ static int whiteheat_firmware_download(struct usb_serial *serial, if (request_ihex_firmware(&firmware_fw, "whiteheat.fw", &serial->dev->dev)) { - err("%s - request \"whiteheat.fw\" failed", __func__); + dev_err(&serial->dev->dev, + "%s - request \"whiteheat.fw\" failed\n", __func__); goto out; } if (request_ihex_firmware(&loader_fw, "whiteheat_loader.fw", &serial->dev->dev)) { - err("%s - request \"whiteheat_loader.fw\" failed", __func__); + dev_err(&serial->dev->dev, + "%s - request \"whiteheat_loader.fw\" failed\n", + __func__); goto out; } ret = 0; @@ -320,9 +323,10 @@ static int whiteheat_firmware_download(struct usb_serial *serial, (unsigned char *)record->data, be16_to_cpu(record->len), 0xa0); if (response < 0) { - err("%s - ezusb_writememory failed for loader (%d %04X %p %d)", - __func__, response, be32_to_cpu(record->addr), - record->data, be16_to_cpu(record->len)); + dev_err(&serial->dev->dev, "%s - ezusb_writememory " + "failed for loader (%d %04X %p %d)\n", + __func__, response, be32_to_cpu(record->addr), + record->data, be16_to_cpu(record->len)); break; } record = ihex_next_binrec(record); @@ -338,9 +342,11 @@ static int whiteheat_firmware_download(struct usb_serial *serial, (unsigned char *)record->data, be16_to_cpu(record->len), 0xa3); if (response < 0) { - err("%s - ezusb_writememory failed for first firmware step (%d %04X %p %d)", - __func__, response, be32_to_cpu(record->addr), - record->data, be16_to_cpu(record->len)); + dev_err(&serial->dev->dev, "%s - ezusb_writememory " + "failed for first firmware step " + "(%d %04X %p %d)\n", __func__, response, + be32_to_cpu(record->addr), record->data, + be16_to_cpu(record->len)); break; } ++record; @@ -354,9 +360,11 @@ static int whiteheat_firmware_download(struct usb_serial *serial, (unsigned char *)record->data, be16_to_cpu(record->len), 0xa0); if (response < 0) { - err("%s - ezusb_writememory failed for second firmware step (%d %04X %p %d)", - __func__, response, be32_to_cpu(record->addr), - record->data, be16_to_cpu(record->len)); + dev_err(&serial->dev->dev, "%s - ezusb_writememory " + "failed for second firmware step " + "(%d %04X %p %d)\n", __func__, response, + be32_to_cpu(record->addr), record->data, + be16_to_cpu(record->len)); break; } ++record; @@ -421,12 +429,12 @@ static int whiteheat_attach(struct usb_serial *serial) ret = usb_bulk_msg(serial->dev, pipe, command, 2, &alen, COMMAND_TIMEOUT_MS); if (ret) { - err("%s: Couldn't send command [%d]", - serial->type->description, ret); + dev_err(&serial->dev->dev, "%s: Couldn't send command [%d]\n", + serial->type->description, ret); goto no_firmware; } else if (alen != 2) { - err("%s: Send command incomplete [%d]", - serial->type->description, alen); + dev_err(&serial->dev->dev, "%s: Send command incomplete [%d]\n", + serial->type->description, alen); goto no_firmware; } @@ -437,31 +445,33 @@ static int whiteheat_attach(struct usb_serial *serial) ret = usb_bulk_msg(serial->dev, pipe, result, sizeof(*hw_info) + 1, &alen, COMMAND_TIMEOUT_MS); if (ret) { - err("%s: Couldn't get results [%d]", - serial->type->description, ret); + dev_err(&serial->dev->dev, "%s: Couldn't get results [%d]\n", + serial->type->description, ret); goto no_firmware; } else if (alen != sizeof(*hw_info) + 1) { - err("%s: Get results incomplete [%d]", - serial->type->description, alen); + dev_err(&serial->dev->dev, "%s: Get results incomplete [%d]\n", + serial->type->description, alen); goto no_firmware; } else if (result[0] != command[0]) { - err("%s: Command failed [%d]", - serial->type->description, result[0]); + dev_err(&serial->dev->dev, "%s: Command failed [%d]\n", + serial->type->description, result[0]); goto no_firmware; } hw_info = (struct whiteheat_hw_info *)&result[1]; - info("%s: Driver %s: Firmware v%d.%02d", serial->type->description, - DRIVER_VERSION, hw_info->sw_major_rev, hw_info->sw_minor_rev); + dev_info(&serial->dev->dev, "%s: Driver %s: Firmware v%d.%02d\n", + serial->type->description, DRIVER_VERSION, + hw_info->sw_major_rev, hw_info->sw_minor_rev); for (i = 0; i < serial->num_ports; i++) { port = serial->port[i]; info = kmalloc(sizeof(struct whiteheat_private), GFP_KERNEL); if (info == NULL) { - err("%s: Out of memory for port structures\n", - serial->type->description); + dev_err(&port->dev, + "%s: Out of memory for port structures\n", + serial->type->description); goto no_private; } @@ -481,18 +491,20 @@ static int whiteheat_attach(struct usb_serial *serial) for (j = 0; j < urb_pool_size; j++) { urb = usb_alloc_urb(0, GFP_KERNEL); if (!urb) { - err("No free urbs available"); + dev_err(&port->dev, "No free urbs available\n"); goto no_rx_urb; } buf_size = port->read_urb->transfer_buffer_length; urb->transfer_buffer = kmalloc(buf_size, GFP_KERNEL); if (!urb->transfer_buffer) { - err("Couldn't allocate urb buffer"); + dev_err(&port->dev, + "Couldn't allocate urb buffer\n"); goto no_rx_buf; } wrap = kmalloc(sizeof(*wrap), GFP_KERNEL); if (!wrap) { - err("Couldn't allocate urb wrapper"); + dev_err(&port->dev, + "Couldn't allocate urb wrapper\n"); goto no_rx_wrap; } usb_fill_bulk_urb(urb, serial->dev, @@ -505,18 +517,20 @@ static int whiteheat_attach(struct usb_serial *serial) urb = usb_alloc_urb(0, GFP_KERNEL); if (!urb) { - err("No free urbs available"); + dev_err(&port->dev, "No free urbs available\n"); goto no_tx_urb; } buf_size = port->write_urb->transfer_buffer_length; urb->transfer_buffer = kmalloc(buf_size, GFP_KERNEL); if (!urb->transfer_buffer) { - err("Couldn't allocate urb buffer"); + dev_err(&port->dev, + "Couldn't allocate urb buffer\n"); goto no_tx_buf; } wrap = kmalloc(sizeof(*wrap), GFP_KERNEL); if (!wrap) { - err("Couldn't allocate urb wrapper"); + dev_err(&port->dev, + "Couldn't allocate urb wrapper\n"); goto no_tx_wrap; } usb_fill_bulk_urb(urb, serial->dev, @@ -534,8 +548,9 @@ static int whiteheat_attach(struct usb_serial *serial) command_info = kmalloc(sizeof(struct whiteheat_command_private), GFP_KERNEL); if (command_info == NULL) { - err("%s: Out of memory for port structures\n", - serial->type->description); + dev_err(&serial->dev->dev, + "%s: Out of memory for port structures\n", + serial->type->description); goto no_command_private; } @@ -552,12 +567,15 @@ static int whiteheat_attach(struct usb_serial *serial) no_firmware: /* Firmware likely not running */ - err("%s: Unable to retrieve firmware version, try replugging\n", - serial->type->description); - err("%s: If the firmware is not running (status led not blinking)\n", - serial->type->description); - err("%s: please contact support@connecttech.com\n", - serial->type->description); + dev_err(&serial->dev->dev, + "%s: Unable to retrieve firmware version, try replugging\n", + serial->type->description); + dev_err(&serial->dev->dev, + "%s: If the firmware is not running (status led not blinking)\n", + serial->type->description); + dev_err(&serial->dev->dev, + "%s: please contact support@connecttech.com\n", + serial->type->description); kfree(result); return -ENODEV; @@ -680,8 +698,9 @@ static int whiteheat_open(struct tty_struct *tty, /* Start reading from the device */ retval = start_port_read(port); if (retval) { - err("%s - failed submitting read urb, error %d", - __func__, retval); + dev_err(&port->dev, + "%s - failed submitting read urb, error %d\n", + __func__, retval); firm_close(port); stop_command_port(port->serial); goto exit; @@ -806,8 +825,9 @@ static int whiteheat_write(struct tty_struct *tty, urb->transfer_buffer_length = bytes; result = usb_submit_urb(urb, GFP_ATOMIC); if (result) { - err("%s - failed submitting write urb, error %d", - __func__, result); + dev_err(&port->dev, + "%s - failed submitting write urb, error %d\n", + __func__, result); sent = result; spin_lock_irqsave(&info->lock, flags); list_add(tmp, &info->tx_urbs_free); @@ -1075,7 +1095,7 @@ static void whiteheat_read_callback(struct urb *urb) wrap = urb_to_wrap(urb, &info->rx_urbs_submitted); if (!wrap) { spin_unlock(&info->lock); - err("%s - Not my urb!", __func__); + dev_err(&port->dev, "%s - Not my urb!\n", __func__); return; } list_del(&wrap->list); @@ -1119,7 +1139,7 @@ static void whiteheat_write_callback(struct urb *urb) wrap = urb_to_wrap(urb, &info->tx_urbs_submitted); if (!wrap) { spin_unlock(&info->lock); - err("%s - Not my urb!", __func__); + dev_err(&port->dev, "%s - Not my urb!\n", __func__); return; } list_move(&wrap->list, &info->tx_urbs_free); @@ -1383,8 +1403,9 @@ static int start_command_port(struct usb_serial *serial) command_port->read_urb->dev = serial->dev; retval = usb_submit_urb(command_port->read_urb, GFP_KERNEL); if (retval) { - err("%s - failed submitting read urb, error %d", - __func__, retval); + dev_err(&serial->dev->dev, + "%s - failed submitting read urb, error %d\n", + __func__, retval); goto exit; } } @@ -1522,7 +1543,8 @@ static void rx_data_softint(struct work_struct *work) urb->dev = port->serial->dev; result = usb_submit_urb(urb, GFP_ATOMIC); if (result) { - err("%s - failed resubmitting read urb, error %d", + dev_err(&port->dev, + "%s - failed resubmitting read urb, error %d\n", __func__, result); spin_lock_irqsave(&info->lock, flags); list_add(tmp, &info->rx_urbs_free); @@ -1556,7 +1578,8 @@ static int __init whiteheat_init(void) retval = usb_register(&whiteheat_driver); if (retval) goto failed_usb_register; - info(DRIVER_DESC " " DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); return 0; failed_usb_register: usb_serial_deregister(&whiteheat_device); diff --git a/drivers/usb/storage/initializers.c b/drivers/usb/storage/initializers.c index 4995bb595aef..2dd9bd4bff56 100644 --- a/drivers/usb/storage/initializers.c +++ b/drivers/usb/storage/initializers.c @@ -95,11 +95,10 @@ int usb_stor_huawei_e220_init(struct us_data *us) { int result; - us->iobuf[0] = 0x1; result = usb_stor_control_msg(us, us->send_ctrl_pipe, USB_REQ_SET_FEATURE, USB_TYPE_STANDARD | USB_RECIP_DEVICE, - 0x01, 0x0, us->iobuf, 0x1, 1000); + 0x01, 0x0, NULL, 0x0, 1000); US_DEBUGP("usb_control_msg performing result is %d\n", result); return (result ? 0 : -1); } diff --git a/drivers/usb/storage/onetouch.c b/drivers/usb/storage/onetouch.c index 98b89ea9e312..c7bf8954b4e4 100644 --- a/drivers/usb/storage/onetouch.c +++ b/drivers/usb/storage/onetouch.c @@ -78,8 +78,8 @@ static void usb_onetouch_irq(struct urb *urb) resubmit: retval = usb_submit_urb (urb, GFP_ATOMIC); if (retval) - err ("can't resubmit intr, %s-%s/input0, retval %d", - onetouch->udev->bus->bus_name, + dev_err(&dev->dev, "can't resubmit intr, %s-%s/input0, " + "retval %d\n", onetouch->udev->bus->bus_name, onetouch->udev->devpath, retval); } @@ -90,7 +90,7 @@ static int usb_onetouch_open(struct input_dev *dev) onetouch->is_open = 1; onetouch->irq->dev = onetouch->udev; if (usb_submit_urb(onetouch->irq, GFP_KERNEL)) { - err("usb_submit_urb failed"); + dev_err(&dev->dev, "usb_submit_urb failed\n"); return -EIO; } @@ -117,7 +117,8 @@ static void usb_onetouch_pm_hook(struct us_data *us, int action) break; case US_RESUME: if (usb_submit_urb(onetouch->irq, GFP_KERNEL) != 0) - err("usb_submit_urb failed"); + dev_err(&onetouch->irq->dev->dev, + "usb_submit_urb failed\n"); break; default: break; diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c index 3523a0bfa0ff..79108d5d3171 100644 --- a/drivers/usb/storage/transport.c +++ b/drivers/usb/storage/transport.c @@ -663,7 +663,7 @@ void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us) } /* Did we transfer less than the minimum amount required? */ - if (srb->result == SAM_STAT_GOOD && + if ((srb->result == SAM_STAT_GOOD || srb->sense_buffer[2] == 0) && scsi_bufflen(srb) - scsi_get_resid(srb) < srb->underflow) srb->result = (DID_ERROR << 16) | (SUGGEST_RETRY << 24); diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index cd155475cb6e..a2b9ebbef38e 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -1628,97 +1628,332 @@ UNUSUAL_DEV( 0x1210, 0x0003, 0x0100, 0x0100, /* Reported by fangxiaozhi <huananhu@huawei.com> * This brings the HUAWEI data card devices into multi-port mode */ -UNUSUAL_DEV( 0x12d1, 0x1001, 0x0000, 0x0000, +UNUSUAL_DEV( 0x12d1, 0x1001, 0x0000, 0x0000, "HUAWEI MOBILE", "Mass Storage", US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, 0), -UNUSUAL_DEV( 0x12d1, 0x1003, 0x0000, 0x0000, +UNUSUAL_DEV( 0x12d1, 0x1003, 0x0000, 0x0000, "HUAWEI MOBILE", "Mass Storage", US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, 0), -UNUSUAL_DEV( 0x12d1, 0x1004, 0x0000, 0x0000, +UNUSUAL_DEV( 0x12d1, 0x1004, 0x0000, 0x0000, "HUAWEI MOBILE", "Mass Storage", US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, 0), -UNUSUAL_DEV( 0x12d1, 0x1401, 0x0000, 0x0000, +UNUSUAL_DEV( 0x12d1, 0x1401, 0x0000, 0x0000, "HUAWEI MOBILE", "Mass Storage", US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, 0), -UNUSUAL_DEV( 0x12d1, 0x1403, 0x0000, 0x0000, +UNUSUAL_DEV( 0x12d1, 0x1402, 0x0000, 0x0000, "HUAWEI MOBILE", "Mass Storage", US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, 0), -UNUSUAL_DEV( 0x12d1, 0x1405, 0x0000, 0x0000, +UNUSUAL_DEV( 0x12d1, 0x1403, 0x0000, 0x0000, "HUAWEI MOBILE", "Mass Storage", US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, 0), -UNUSUAL_DEV( 0x12d1, 0x1406, 0x0000, 0x0000, +UNUSUAL_DEV( 0x12d1, 0x1404, 0x0000, 0x0000, "HUAWEI MOBILE", "Mass Storage", US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, 0), -UNUSUAL_DEV( 0x12d1, 0x1408, 0x0000, 0x0000, +UNUSUAL_DEV( 0x12d1, 0x1405, 0x0000, 0x0000, "HUAWEI MOBILE", "Mass Storage", US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, 0), -UNUSUAL_DEV( 0x12d1, 0x1409, 0x0000, 0x0000, +UNUSUAL_DEV( 0x12d1, 0x1406, 0x0000, 0x0000, "HUAWEI MOBILE", "Mass Storage", US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, 0), -UNUSUAL_DEV( 0x12d1, 0x1410, 0x0000, 0x0000, +UNUSUAL_DEV( 0x12d1, 0x1407, 0x0000, 0x0000, "HUAWEI MOBILE", "Mass Storage", US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, 0), -UNUSUAL_DEV( 0x12d1, 0x1411, 0x0000, 0x0000, +UNUSUAL_DEV( 0x12d1, 0x1408, 0x0000, 0x0000, "HUAWEI MOBILE", "Mass Storage", US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, 0), -UNUSUAL_DEV( 0x12d1, 0x1412, 0x0000, 0x0000, +UNUSUAL_DEV( 0x12d1, 0x1409, 0x0000, 0x0000, "HUAWEI MOBILE", "Mass Storage", US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, 0), -UNUSUAL_DEV( 0x12d1, 0x1413, 0x0000, 0x0000, +UNUSUAL_DEV( 0x12d1, 0x140A, 0x0000, 0x0000, "HUAWEI MOBILE", "Mass Storage", US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, 0), -UNUSUAL_DEV( 0x12d1, 0x1414, 0x0000, 0x0000, +UNUSUAL_DEV( 0x12d1, 0x140B, 0x0000, 0x0000, "HUAWEI MOBILE", "Mass Storage", US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, 0), -UNUSUAL_DEV( 0x12d1, 0x1415, 0x0000, 0x0000, +UNUSUAL_DEV( 0x12d1, 0x140C, 0x0000, 0x0000, "HUAWEI MOBILE", "Mass Storage", US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, 0), -UNUSUAL_DEV( 0x12d1, 0x1416, 0x0000, 0x0000, +UNUSUAL_DEV( 0x12d1, 0x140D, 0x0000, 0x0000, "HUAWEI MOBILE", "Mass Storage", US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, 0), -UNUSUAL_DEV( 0x12d1, 0x1417, 0x0000, 0x0000, +UNUSUAL_DEV( 0x12d1, 0x140E, 0x0000, 0x0000, "HUAWEI MOBILE", "Mass Storage", US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, 0), -UNUSUAL_DEV( 0x12d1, 0x1418, 0x0000, 0x0000, +UNUSUAL_DEV( 0x12d1, 0x140F, 0x0000, 0x0000, "HUAWEI MOBILE", "Mass Storage", US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, 0), -UNUSUAL_DEV( 0x12d1, 0x1419, 0x0000, 0x0000, +UNUSUAL_DEV( 0x12d1, 0x1410, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1411, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1412, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1413, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1414, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1415, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1416, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1417, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1418, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1419, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x141A, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x141B, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x141C, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x141D, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x141E, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x141F, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1420, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1421, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1422, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1423, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1424, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1425, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1426, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1427, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1428, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1429, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x142A, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x142B, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x142C, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x142D, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x142E, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x142F, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1430, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1431, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1432, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1433, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1434, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1435, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1436, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1437, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1438, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x1439, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x143A, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x143B, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x143C, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x143D, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x143E, 0x0000, 0x0000, + "HUAWEI MOBILE", + "Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, + 0), +UNUSUAL_DEV( 0x12d1, 0x143F, 0x0000, 0x0000, "HUAWEI MOBILE", "Mass Storage", US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init, @@ -1745,6 +1980,15 @@ UNUSUAL_DEV( 0x14cd, 0x6600, 0x0201, 0x0201, US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_IGNORE_RESIDUE ), +/* Reported by Alexandre Oliva <oliva@lsd.ic.unicamp.br> + * JMicron responds to USN and several other SCSI ioctls with a + * residue that causes subsequent I/O requests to fail. */ +UNUSUAL_DEV( 0x152d, 0x2329, 0x0100, 0x0100, + "JMicron", + "USB to ATA/ATAPI Bridge", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_IGNORE_RESIDUE ), + /* Reported by Robert Schedel <r.schedel@yahoo.de> * Note: this is a 'super top' device like the above 14cd/6600 device */ UNUSUAL_DEV( 0x1652, 0x6600, 0x0201, 0x0201, @@ -1818,6 +2062,15 @@ UNUSUAL_DEV( 0x2770, 0x915d, 0x0010, 0x0010, US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_FIX_CAPACITY ), +/* Reported by Frederic Marchal <frederic.marchal@wowcompany.com> + * Mio Moov 330 + */ +UNUSUAL_DEV( 0x3340, 0xffff, 0x0000, 0x0000, + "Mitac", + "Mio DigiWalker USB Sync", + US_SC_DEVICE,US_PR_DEVICE,NULL, + US_FL_MAX_SECTORS_64 ), + /* Reported by Andrey Rahmatullin <wrar@altlinux.org> */ UNUSUAL_DEV( 0x4102, 0x1020, 0x0100, 0x0100, "iRiver", diff --git a/drivers/usb/wusbcore/Kconfig b/drivers/usb/wusbcore/Kconfig new file mode 100644 index 000000000000..eb09a0a14a80 --- /dev/null +++ b/drivers/usb/wusbcore/Kconfig @@ -0,0 +1,41 @@ +# +# Wireless USB Core configuration +# +config USB_WUSB + tristate "Enable Wireless USB extensions (EXPERIMENTAL)" + depends on EXPERIMENTAL + depends on USB + select UWB + select CRYPTO + select CRYPTO_BLKCIPHER + select CRYPTO_CBC + select CRYPTO_MANAGER + select CRYPTO_AES + help + Enable the host-side support for Wireless USB. + + To compile this support select Y (built in). It is safe to + select even if you don't have the hardware. + +config USB_WUSB_CBAF + tristate "Support WUSB Cable Based Association (CBA)" + depends on USB + help + Some WUSB devices support Cable Based Association. It's used to + enable the secure communication between the host and the + device. + + Enable this option if your WUSB device must to be connected + via wired USB before establishing a wireless link. + + It is safe to select even if you don't have a compatible + hardware. + +config USB_WUSB_CBAF_DEBUG + bool "Enable CBA debug messages" + depends on USB_WUSB_CBAF + help + Say Y here if you want the CBA to produce a bunch of debug messages + to the system log. Select this if you are having a problem with + CBA support and want to see more of what is going on. + diff --git a/drivers/usb/wusbcore/Makefile b/drivers/usb/wusbcore/Makefile new file mode 100644 index 000000000000..75f1ade66258 --- /dev/null +++ b/drivers/usb/wusbcore/Makefile @@ -0,0 +1,26 @@ +obj-$(CONFIG_USB_WUSB) += wusbcore.o +obj-$(CONFIG_USB_HWA_HCD) += wusb-wa.o +obj-$(CONFIG_USB_WUSB_CBAF) += wusb-cbaf.o + + +wusbcore-objs := \ + crypto.o \ + devconnect.o \ + dev-sysfs.o \ + mmc.o \ + pal.o \ + rh.o \ + reservation.o \ + security.o \ + wusbhc.o + +wusb-cbaf-objs := cbaf.o + +wusb-wa-objs := wa-hc.o \ + wa-nep.o \ + wa-rpipe.o \ + wa-xfer.o + +ifeq ($(CONFIG_USB_WUSB_CBAF_DEBUG),y) +EXTRA_CFLAGS += -DDEBUG +endif diff --git a/drivers/usb/wusbcore/cbaf.c b/drivers/usb/wusbcore/cbaf.c new file mode 100644 index 000000000000..ab4788d1785a --- /dev/null +++ b/drivers/usb/wusbcore/cbaf.c @@ -0,0 +1,673 @@ +/* + * Wireless USB - Cable Based Association + * + * + * Copyright (C) 2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * Copyright (C) 2008 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * WUSB devices have to be paired (associated in WUSB lingo) so + * that they can connect to the system. + * + * One way of pairing is using CBA-Cable Based Association. First + * time you plug the device with a cable, association is done between + * host and device and subsequent times, you can connect wirelessly + * without having to associate again. That's the idea. + * + * This driver does nothing Earth shattering. It just provides an + * interface to chat with the wire-connected device so we can get a + * CDID (device ID) that might have been previously associated to a + * CHID (host ID) and to set up a new <CHID,CDID,CK> triplet + * (connection context), with the CK being the secret, or connection + * key. This is the pairing data. + * + * When a device with the CBA capability connects, the probe routine + * just creates a bunch of sysfs files that a user space enumeration + * manager uses to allow it to connect wirelessly to the system or not. + * + * The process goes like this: + * + * 1. Device plugs, cbaf is loaded, notifications happen. + * + * 2. The connection manager (CM) sees a device with CBAF capability + * (the wusb_chid etc. files in /sys/devices/blah/OURDEVICE). + * + * 3. The CM writes the host name, supported band groups, and the CHID + * (host ID) into the wusb_host_name, wusb_host_band_groups and + * wusb_chid files. These get sent to the device and the CDID (if + * any) for this host is requested. + * + * 4. The CM can verify that the device's supported band groups + * (wusb_device_band_groups) are compatible with the host. + * + * 5. The CM reads the wusb_cdid file. + * + * 6. The CM looks up its database + * + * 6.1 If it has a matching CHID,CDID entry, the device has been + * authorized before (paired) and nothing further needs to be + * done. + * + * 6.2 If the CDID is zero (or the CM doesn't find a matching CDID in + * its database), the device is assumed to be not known. The CM + * may associate the host with device by: writing a randomly + * generated CDID to wusb_cdid and then a random CK to wusb_ck + * (this uploads the new CC to the device). + * + * CMD may choose to prompt the user before associating with a new + * device. + * + * 7. Device is unplugged. + * + * When the device tries to connect wirelessly, it will present its + * CDID to the WUSB host controller. The CM will query the + * database. If the CHID/CDID pair found, it will (with a 4-way + * handshake) challenge the device to demonstrate it has the CK secret + * key (from our database) without actually exchanging it. Once + * satisfied, crypto keys are derived from the CK, the device is + * connected and all communication is encrypted. + * + * References: + * [WUSB-AM] Association Models Supplement to the Certified Wireless + * Universal Serial Bus Specification, version 1.0. + */ +#include <linux/module.h> +#include <linux/ctype.h> +#include <linux/version.h> +#include <linux/usb.h> +#include <linux/interrupt.h> +#include <linux/delay.h> +#include <linux/random.h> +#include <linux/mutex.h> +#include <linux/uwb.h> +#include <linux/usb/wusb.h> +#include <linux/usb/association.h> + +#define CBA_NAME_LEN 0x40 /* [WUSB-AM] table 4-7 */ + +/* An instance of a Cable-Based-Association-Framework device */ +struct cbaf { + struct usb_device *usb_dev; + struct usb_interface *usb_iface; + void *buffer; + size_t buffer_size; + + struct wusb_ckhdid chid; + char host_name[CBA_NAME_LEN]; + u16 host_band_groups; + + struct wusb_ckhdid cdid; + char device_name[CBA_NAME_LEN]; + u16 device_band_groups; + + struct wusb_ckhdid ck; +}; + +/* + * Verify that a CBAF USB-interface has what we need + * + * According to [WUSB-AM], CBA devices should provide at least two + * interfaces: + * - RETRIEVE_HOST_INFO + * - ASSOCIATE + * + * If the device doesn't provide these interfaces, we do not know how + * to deal with it. + */ +static int cbaf_check(struct cbaf *cbaf) +{ + int result; + struct device *dev = &cbaf->usb_iface->dev; + struct wusb_cbaf_assoc_info *assoc_info; + struct wusb_cbaf_assoc_request *assoc_request; + size_t assoc_size; + void *itr, *top; + int ar_rhi = 0, ar_assoc = 0; + + result = usb_control_msg( + cbaf->usb_dev, usb_rcvctrlpipe(cbaf->usb_dev, 0), + CBAF_REQ_GET_ASSOCIATION_INFORMATION, + USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0, cbaf->usb_iface->cur_altsetting->desc.bInterfaceNumber, + cbaf->buffer, cbaf->buffer_size, 1000 /* FIXME: arbitrary */); + if (result < 0) { + dev_err(dev, "Cannot get available association types: %d\n", + result); + return result; + } + + assoc_info = cbaf->buffer; + if (result < sizeof(*assoc_info)) { + dev_err(dev, "Not enough data to decode association info " + "header (%zu vs %zu bytes required)\n", + (size_t)result, sizeof(*assoc_info)); + return result; + } + + assoc_size = le16_to_cpu(assoc_info->Length); + if (result < assoc_size) { + dev_err(dev, "Not enough data to decode association info " + "(%zu vs %zu bytes required)\n", + (size_t)assoc_size, sizeof(*assoc_info)); + return result; + } + /* + * From now on, we just verify, but won't error out unless we + * don't find the AR_TYPE_WUSB_{RETRIEVE_HOST_INFO,ASSOCIATE} + * types. + */ + itr = cbaf->buffer + sizeof(*assoc_info); + top = cbaf->buffer + assoc_size; + dev_dbg(dev, "Found %u association requests (%zu bytes)\n", + assoc_info->NumAssociationRequests, assoc_size); + + while (itr < top) { + u16 ar_type, ar_subtype; + u32 ar_size; + const char *ar_name; + + assoc_request = itr; + + if (top - itr < sizeof(*assoc_request)) { + dev_err(dev, "Not enough data to decode associaton " + "request (%zu vs %zu bytes needed)\n", + top - itr, sizeof(*assoc_request)); + break; + } + + ar_type = le16_to_cpu(assoc_request->AssociationTypeId); + ar_subtype = le16_to_cpu(assoc_request->AssociationSubTypeId); + ar_size = le32_to_cpu(assoc_request->AssociationTypeInfoSize); + ar_name = "unknown"; + + switch (ar_type) { + case AR_TYPE_WUSB: + /* Verify we have what is mandated by [WUSB-AM]. */ + switch (ar_subtype) { + case AR_TYPE_WUSB_RETRIEVE_HOST_INFO: + ar_name = "RETRIEVE_HOST_INFO"; + ar_rhi = 1; + break; + case AR_TYPE_WUSB_ASSOCIATE: + /* send assoc data */ + ar_name = "ASSOCIATE"; + ar_assoc = 1; + break; + }; + break; + }; + + dev_dbg(dev, "Association request #%02u: 0x%04x/%04x " + "(%zu bytes): %s\n", + assoc_request->AssociationDataIndex, ar_type, + ar_subtype, (size_t)ar_size, ar_name); + + itr += sizeof(*assoc_request); + } + + if (!ar_rhi) { + dev_err(dev, "Missing RETRIEVE_HOST_INFO association " + "request\n"); + return -EINVAL; + } + if (!ar_assoc) { + dev_err(dev, "Missing ASSOCIATE association request\n"); + return -EINVAL; + } + + return 0; +} + +static const struct wusb_cbaf_host_info cbaf_host_info_defaults = { + .AssociationTypeId_hdr = WUSB_AR_AssociationTypeId, + .AssociationTypeId = cpu_to_le16(AR_TYPE_WUSB), + .AssociationSubTypeId_hdr = WUSB_AR_AssociationSubTypeId, + .AssociationSubTypeId = cpu_to_le16(AR_TYPE_WUSB_RETRIEVE_HOST_INFO), + .CHID_hdr = WUSB_AR_CHID, + .LangID_hdr = WUSB_AR_LangID, + .HostFriendlyName_hdr = WUSB_AR_HostFriendlyName, +}; + +/* Send WUSB host information (CHID and name) to a CBAF device */ +static int cbaf_send_host_info(struct cbaf *cbaf) +{ + struct wusb_cbaf_host_info *hi; + size_t name_len; + size_t hi_size; + + hi = cbaf->buffer; + memset(hi, 0, sizeof(*hi)); + *hi = cbaf_host_info_defaults; + hi->CHID = cbaf->chid; + hi->LangID = 0; /* FIXME: I guess... */ + strlcpy(hi->HostFriendlyName, cbaf->host_name, CBA_NAME_LEN); + name_len = strlen(cbaf->host_name); + hi->HostFriendlyName_hdr.len = cpu_to_le16(name_len); + hi_size = sizeof(*hi) + name_len; + + return usb_control_msg(cbaf->usb_dev, usb_sndctrlpipe(cbaf->usb_dev, 0), + CBAF_REQ_SET_ASSOCIATION_RESPONSE, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0x0101, + cbaf->usb_iface->cur_altsetting->desc.bInterfaceNumber, + hi, hi_size, 1000 /* FIXME: arbitrary */); +} + +/* + * Get device's information (CDID) associated to CHID + * + * The device will return it's information (CDID, name, bandgroups) + * associated to the CHID we have set before, or 0 CDID and default + * name and bandgroup if no CHID set or unknown. + */ +static int cbaf_cdid_get(struct cbaf *cbaf) +{ + int result; + struct device *dev = &cbaf->usb_iface->dev; + struct wusb_cbaf_device_info *di; + size_t needed; + + di = cbaf->buffer; + result = usb_control_msg( + cbaf->usb_dev, usb_rcvctrlpipe(cbaf->usb_dev, 0), + CBAF_REQ_GET_ASSOCIATION_REQUEST, + USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0x0200, cbaf->usb_iface->cur_altsetting->desc.bInterfaceNumber, + di, cbaf->buffer_size, 1000 /* FIXME: arbitrary */); + if (result < 0) { + dev_err(dev, "Cannot request device information: %d\n", result); + return result; + } + + needed = result < sizeof(*di) ? sizeof(*di) : le32_to_cpu(di->Length); + if (result < needed) { + dev_err(dev, "Not enough data in DEVICE_INFO reply (%zu vs " + "%zu bytes needed)\n", (size_t)result, needed); + return result; + } + + strlcpy(cbaf->device_name, di->DeviceFriendlyName, CBA_NAME_LEN); + cbaf->cdid = di->CDID; + cbaf->device_band_groups = le16_to_cpu(di->BandGroups); + + return 0; +} + +static ssize_t cbaf_wusb_chid_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct usb_interface *iface = to_usb_interface(dev); + struct cbaf *cbaf = usb_get_intfdata(iface); + char pr_chid[WUSB_CKHDID_STRSIZE]; + + ckhdid_printf(pr_chid, sizeof(pr_chid), &cbaf->chid); + return scnprintf(buf, PAGE_SIZE, "%s\n", pr_chid); +} + +static ssize_t cbaf_wusb_chid_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + ssize_t result; + struct usb_interface *iface = to_usb_interface(dev); + struct cbaf *cbaf = usb_get_intfdata(iface); + + result = sscanf(buf, + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx", + &cbaf->chid.data[0] , &cbaf->chid.data[1], + &cbaf->chid.data[2] , &cbaf->chid.data[3], + &cbaf->chid.data[4] , &cbaf->chid.data[5], + &cbaf->chid.data[6] , &cbaf->chid.data[7], + &cbaf->chid.data[8] , &cbaf->chid.data[9], + &cbaf->chid.data[10], &cbaf->chid.data[11], + &cbaf->chid.data[12], &cbaf->chid.data[13], + &cbaf->chid.data[14], &cbaf->chid.data[15]); + + if (result != 16) + return -EINVAL; + + result = cbaf_send_host_info(cbaf); + if (result < 0) + return result; + result = cbaf_cdid_get(cbaf); + if (result < 0) + return -result; + return size; +} +static DEVICE_ATTR(wusb_chid, 0600, cbaf_wusb_chid_show, cbaf_wusb_chid_store); + +static ssize_t cbaf_wusb_host_name_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct usb_interface *iface = to_usb_interface(dev); + struct cbaf *cbaf = usb_get_intfdata(iface); + + return scnprintf(buf, PAGE_SIZE, "%s\n", cbaf->host_name); +} + +static ssize_t cbaf_wusb_host_name_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + ssize_t result; + struct usb_interface *iface = to_usb_interface(dev); + struct cbaf *cbaf = usb_get_intfdata(iface); + + result = sscanf(buf, "%63s", cbaf->host_name); + if (result != 1) + return -EINVAL; + + return size; +} +static DEVICE_ATTR(wusb_host_name, 0600, cbaf_wusb_host_name_show, + cbaf_wusb_host_name_store); + +static ssize_t cbaf_wusb_host_band_groups_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct usb_interface *iface = to_usb_interface(dev); + struct cbaf *cbaf = usb_get_intfdata(iface); + + return scnprintf(buf, PAGE_SIZE, "0x%04x\n", cbaf->host_band_groups); +} + +static ssize_t cbaf_wusb_host_band_groups_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + ssize_t result; + struct usb_interface *iface = to_usb_interface(dev); + struct cbaf *cbaf = usb_get_intfdata(iface); + u16 band_groups = 0; + + result = sscanf(buf, "%04hx", &band_groups); + if (result != 1) + return -EINVAL; + + cbaf->host_band_groups = band_groups; + + return size; +} + +static DEVICE_ATTR(wusb_host_band_groups, 0600, + cbaf_wusb_host_band_groups_show, + cbaf_wusb_host_band_groups_store); + +static const struct wusb_cbaf_device_info cbaf_device_info_defaults = { + .Length_hdr = WUSB_AR_Length, + .CDID_hdr = WUSB_AR_CDID, + .BandGroups_hdr = WUSB_AR_BandGroups, + .LangID_hdr = WUSB_AR_LangID, + .DeviceFriendlyName_hdr = WUSB_AR_DeviceFriendlyName, +}; + +static ssize_t cbaf_wusb_cdid_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct usb_interface *iface = to_usb_interface(dev); + struct cbaf *cbaf = usb_get_intfdata(iface); + char pr_cdid[WUSB_CKHDID_STRSIZE]; + + ckhdid_printf(pr_cdid, sizeof(pr_cdid), &cbaf->cdid); + return scnprintf(buf, PAGE_SIZE, "%s\n", pr_cdid); +} + +static ssize_t cbaf_wusb_cdid_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + ssize_t result; + struct usb_interface *iface = to_usb_interface(dev); + struct cbaf *cbaf = usb_get_intfdata(iface); + struct wusb_ckhdid cdid; + + result = sscanf(buf, + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx", + &cdid.data[0] , &cdid.data[1], + &cdid.data[2] , &cdid.data[3], + &cdid.data[4] , &cdid.data[5], + &cdid.data[6] , &cdid.data[7], + &cdid.data[8] , &cdid.data[9], + &cdid.data[10], &cdid.data[11], + &cdid.data[12], &cdid.data[13], + &cdid.data[14], &cdid.data[15]); + if (result != 16) + return -EINVAL; + + cbaf->cdid = cdid; + + return size; +} +static DEVICE_ATTR(wusb_cdid, 0600, cbaf_wusb_cdid_show, cbaf_wusb_cdid_store); + +static ssize_t cbaf_wusb_device_band_groups_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct usb_interface *iface = to_usb_interface(dev); + struct cbaf *cbaf = usb_get_intfdata(iface); + + return scnprintf(buf, PAGE_SIZE, "0x%04x\n", cbaf->device_band_groups); +} + +static DEVICE_ATTR(wusb_device_band_groups, 0600, + cbaf_wusb_device_band_groups_show, + NULL); + +static ssize_t cbaf_wusb_device_name_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct usb_interface *iface = to_usb_interface(dev); + struct cbaf *cbaf = usb_get_intfdata(iface); + + return scnprintf(buf, PAGE_SIZE, "%s\n", cbaf->device_name); +} +static DEVICE_ATTR(wusb_device_name, 0600, cbaf_wusb_device_name_show, NULL); + +static const struct wusb_cbaf_cc_data cbaf_cc_data_defaults = { + .AssociationTypeId_hdr = WUSB_AR_AssociationTypeId, + .AssociationTypeId = cpu_to_le16(AR_TYPE_WUSB), + .AssociationSubTypeId_hdr = WUSB_AR_AssociationSubTypeId, + .AssociationSubTypeId = cpu_to_le16(AR_TYPE_WUSB_ASSOCIATE), + .Length_hdr = WUSB_AR_Length, + .Length = cpu_to_le32(sizeof(struct wusb_cbaf_cc_data)), + .ConnectionContext_hdr = WUSB_AR_ConnectionContext, + .BandGroups_hdr = WUSB_AR_BandGroups, +}; + +static const struct wusb_cbaf_cc_data_fail cbaf_cc_data_fail_defaults = { + .AssociationTypeId_hdr = WUSB_AR_AssociationTypeId, + .AssociationSubTypeId_hdr = WUSB_AR_AssociationSubTypeId, + .Length_hdr = WUSB_AR_Length, + .AssociationStatus_hdr = WUSB_AR_AssociationStatus, +}; + +/* + * Send a new CC to the device. + */ +static int cbaf_cc_upload(struct cbaf *cbaf) +{ + int result; + struct device *dev = &cbaf->usb_iface->dev; + struct wusb_cbaf_cc_data *ccd; + char pr_cdid[WUSB_CKHDID_STRSIZE]; + + ccd = cbaf->buffer; + *ccd = cbaf_cc_data_defaults; + ccd->CHID = cbaf->chid; + ccd->CDID = cbaf->cdid; + ccd->CK = cbaf->ck; + ccd->BandGroups = cpu_to_le16(cbaf->host_band_groups); + + dev_dbg(dev, "Trying to upload CC:\n"); + ckhdid_printf(pr_cdid, sizeof(pr_cdid), &ccd->CHID); + dev_dbg(dev, " CHID %s\n", pr_cdid); + ckhdid_printf(pr_cdid, sizeof(pr_cdid), &ccd->CDID); + dev_dbg(dev, " CDID %s\n", pr_cdid); + dev_dbg(dev, " Bandgroups 0x%04x\n", cbaf->host_band_groups); + + result = usb_control_msg( + cbaf->usb_dev, usb_sndctrlpipe(cbaf->usb_dev, 0), + CBAF_REQ_SET_ASSOCIATION_RESPONSE, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0x0201, cbaf->usb_iface->cur_altsetting->desc.bInterfaceNumber, + ccd, sizeof(*ccd), 1000 /* FIXME: arbitrary */); + + return result; +} + +static ssize_t cbaf_wusb_ck_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + ssize_t result; + struct usb_interface *iface = to_usb_interface(dev); + struct cbaf *cbaf = usb_get_intfdata(iface); + + result = sscanf(buf, + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx", + &cbaf->ck.data[0] , &cbaf->ck.data[1], + &cbaf->ck.data[2] , &cbaf->ck.data[3], + &cbaf->ck.data[4] , &cbaf->ck.data[5], + &cbaf->ck.data[6] , &cbaf->ck.data[7], + &cbaf->ck.data[8] , &cbaf->ck.data[9], + &cbaf->ck.data[10], &cbaf->ck.data[11], + &cbaf->ck.data[12], &cbaf->ck.data[13], + &cbaf->ck.data[14], &cbaf->ck.data[15]); + if (result != 16) + return -EINVAL; + + result = cbaf_cc_upload(cbaf); + if (result < 0) + return result; + + return size; +} +static DEVICE_ATTR(wusb_ck, 0600, NULL, cbaf_wusb_ck_store); + +static struct attribute *cbaf_dev_attrs[] = { + &dev_attr_wusb_host_name.attr, + &dev_attr_wusb_host_band_groups.attr, + &dev_attr_wusb_chid.attr, + &dev_attr_wusb_cdid.attr, + &dev_attr_wusb_device_name.attr, + &dev_attr_wusb_device_band_groups.attr, + &dev_attr_wusb_ck.attr, + NULL, +}; + +static struct attribute_group cbaf_dev_attr_group = { + .name = NULL, /* we want them in the same directory */ + .attrs = cbaf_dev_attrs, +}; + +static int cbaf_probe(struct usb_interface *iface, + const struct usb_device_id *id) +{ + struct cbaf *cbaf; + struct device *dev = &iface->dev; + int result = -ENOMEM; + + cbaf = kzalloc(sizeof(*cbaf), GFP_KERNEL); + if (cbaf == NULL) + goto error_kzalloc; + cbaf->buffer = kmalloc(512, GFP_KERNEL); + if (cbaf->buffer == NULL) + goto error_kmalloc_buffer; + + cbaf->buffer_size = 512; + cbaf->usb_dev = usb_get_dev(interface_to_usbdev(iface)); + cbaf->usb_iface = usb_get_intf(iface); + result = cbaf_check(cbaf); + if (result < 0) { + dev_err(dev, "This device is not WUSB-CBAF compliant" + "and is not supported yet.\n"); + goto error_check; + } + + result = sysfs_create_group(&dev->kobj, &cbaf_dev_attr_group); + if (result < 0) { + dev_err(dev, "Can't register sysfs attr group: %d\n", result); + goto error_create_group; + } + usb_set_intfdata(iface, cbaf); + return 0; + +error_create_group: +error_check: + kfree(cbaf->buffer); +error_kmalloc_buffer: + kfree(cbaf); +error_kzalloc: + return result; +} + +static void cbaf_disconnect(struct usb_interface *iface) +{ + struct cbaf *cbaf = usb_get_intfdata(iface); + struct device *dev = &iface->dev; + sysfs_remove_group(&dev->kobj, &cbaf_dev_attr_group); + usb_set_intfdata(iface, NULL); + usb_put_intf(iface); + kfree(cbaf->buffer); + /* paranoia: clean up crypto keys */ + memset(cbaf, 0, sizeof(*cbaf)); + kfree(cbaf); +} + +static struct usb_device_id cbaf_id_table[] = { + { USB_INTERFACE_INFO(0xef, 0x03, 0x01), }, + { }, +}; +MODULE_DEVICE_TABLE(usb, cbaf_id_table); + +static struct usb_driver cbaf_driver = { + .name = "wusb-cbaf", + .id_table = cbaf_id_table, + .probe = cbaf_probe, + .disconnect = cbaf_disconnect, +}; + +static int __init cbaf_driver_init(void) +{ + return usb_register(&cbaf_driver); +} +module_init(cbaf_driver_init); + +static void __exit cbaf_driver_exit(void) +{ + usb_deregister(&cbaf_driver); +} +module_exit(cbaf_driver_exit); + +MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>"); +MODULE_DESCRIPTION("Wireless USB Cable Based Association"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/wusbcore/crypto.c b/drivers/usb/wusbcore/crypto.c new file mode 100644 index 000000000000..c36c4389baae --- /dev/null +++ b/drivers/usb/wusbcore/crypto.c @@ -0,0 +1,538 @@ +/* + * Ultra Wide Band + * AES-128 CCM Encryption + * + * Copyright (C) 2007 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * We don't do any encryption here; we use the Linux Kernel's AES-128 + * crypto modules to construct keys and payload blocks in a way + * defined by WUSB1.0[6]. Check the erratas, as typos are are patched + * there. + * + * Thanks a zillion to John Keys for his help and clarifications over + * the designed-by-a-committee text. + * + * So the idea is that there is this basic Pseudo-Random-Function + * defined in WUSB1.0[6.5] which is the core of everything. It works + * by tweaking some blocks, AES crypting them and then xoring + * something else with them (this seems to be called CBC(AES) -- can + * you tell I know jack about crypto?). So we just funnel it into the + * Linux Crypto API. + * + * We leave a crypto test module so we can verify that vectors match, + * every now and then. + * + * Block size: 16 bytes -- AES seems to do things in 'block sizes'. I + * am learning a lot... + * + * Conveniently, some data structures that need to be + * funneled through AES are...16 bytes in size! + */ + +#include <linux/crypto.h> +#include <linux/module.h> +#include <linux/err.h> +#include <linux/uwb.h> +#include <linux/usb/wusb.h> +#include <linux/scatterlist.h> +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + + +/* + * Block of data, as understood by AES-CCM + * + * The code assumes this structure is nothing but a 16 byte array + * (packed in a struct to avoid common mess ups that I usually do with + * arrays and enforcing type checking). + */ +struct aes_ccm_block { + u8 data[16]; +} __attribute__((packed)); + +/* + * Counter-mode Blocks (WUSB1.0[6.4]) + * + * According to CCM (or so it seems), for the purpose of calculating + * the MIC, the message is broken in N counter-mode blocks, B0, B1, + * ... BN. + * + * B0 contains flags, the CCM nonce and l(m). + * + * B1 contains l(a), the MAC header, the encryption offset and padding. + * + * If EO is nonzero, additional blocks are built from payload bytes + * until EO is exahusted (FIXME: padding to 16 bytes, I guess). The + * padding is not xmitted. + */ + +/* WUSB1.0[T6.4] */ +struct aes_ccm_b0 { + u8 flags; /* 0x59, per CCM spec */ + struct aes_ccm_nonce ccm_nonce; + __be16 lm; +} __attribute__((packed)); + +/* WUSB1.0[T6.5] */ +struct aes_ccm_b1 { + __be16 la; + u8 mac_header[10]; + __le16 eo; + u8 security_reserved; /* This is always zero */ + u8 padding; /* 0 */ +} __attribute__((packed)); + +/* + * Encryption Blocks (WUSB1.0[6.4.4]) + * + * CCM uses Ax blocks to generate a keystream with which the MIC and + * the message's payload are encoded. A0 always encrypts/decrypts the + * MIC. Ax (x>0) are used for the sucesive payload blocks. + * + * The x is the counter, and is increased for each block. + */ +struct aes_ccm_a { + u8 flags; /* 0x01, per CCM spec */ + struct aes_ccm_nonce ccm_nonce; + __be16 counter; /* Value of x */ +} __attribute__((packed)); + +static void bytewise_xor(void *_bo, const void *_bi1, const void *_bi2, + size_t size) +{ + u8 *bo = _bo; + const u8 *bi1 = _bi1, *bi2 = _bi2; + size_t itr; + for (itr = 0; itr < size; itr++) + bo[itr] = bi1[itr] ^ bi2[itr]; +} + +/* + * CC-MAC function WUSB1.0[6.5] + * + * Take a data string and produce the encrypted CBC Counter-mode MIC + * + * Note the names for most function arguments are made to (more or + * less) match those used in the pseudo-function definition given in + * WUSB1.0[6.5]. + * + * @tfm_cbc: CBC(AES) blkcipher handle (initialized) + * + * @tfm_aes: AES cipher handle (initialized) + * + * @mic: buffer for placing the computed MIC (Message Integrity + * Code). This is exactly 8 bytes, and we expect the buffer to + * be at least eight bytes in length. + * + * @key: 128 bit symmetric key + * + * @n: CCM nonce + * + * @a: ASCII string, 14 bytes long (I guess zero padded if needed; + * we use exactly 14 bytes). + * + * @b: data stream to be processed; cannot be a global or const local + * (will confuse the scatterlists) + * + * @blen: size of b... + * + * Still not very clear how this is done, but looks like this: we + * create block B0 (as WUSB1.0[6.5] says), then we AES-crypt it with + * @key. We bytewise xor B0 with B1 (1) and AES-crypt that. Then we + * take the payload and divide it in blocks (16 bytes), xor them with + * the previous crypto result (16 bytes) and crypt it, repeat the next + * block with the output of the previous one, rinse wash (I guess this + * is what AES CBC mode means...but I truly have no idea). So we use + * the CBC(AES) blkcipher, that does precisely that. The IV (Initial + * Vector) is 16 bytes and is set to zero, so + * + * See rfc3610. Linux crypto has a CBC implementation, but the + * documentation is scarce, to say the least, and the example code is + * so intricated that is difficult to understand how things work. Most + * of this is guess work -- bite me. + * + * (1) Created as 6.5 says, again, using as l(a) 'Blen + 14', and + * using the 14 bytes of @a to fill up + * b1.{mac_header,e0,security_reserved,padding}. + * + * NOTE: The definiton of l(a) in WUSB1.0[6.5] vs the definition of + * l(m) is orthogonal, they bear no relationship, so it is not + * in conflict with the parameter's relation that + * WUSB1.0[6.4.2]) defines. + * + * NOTE: WUSB1.0[A.1]: Host Nonce is missing a nibble? (1e); fixed in + * first errata released on 2005/07. + * + * NOTE: we need to clean IV to zero at each invocation to make sure + * we start with a fresh empty Initial Vector, so that the CBC + * works ok. + * + * NOTE: blen is not aligned to a block size, we'll pad zeros, that's + * what sg[4] is for. Maybe there is a smarter way to do this. + */ +static int wusb_ccm_mac(struct crypto_blkcipher *tfm_cbc, + struct crypto_cipher *tfm_aes, void *mic, + const struct aes_ccm_nonce *n, + const struct aes_ccm_label *a, const void *b, + size_t blen) +{ + int result = 0; + struct blkcipher_desc desc; + struct aes_ccm_b0 b0; + struct aes_ccm_b1 b1; + struct aes_ccm_a ax; + struct scatterlist sg[4], sg_dst; + void *iv, *dst_buf; + size_t ivsize, dst_size; + const u8 bzero[16] = { 0 }; + size_t zero_padding; + + d_fnstart(3, NULL, "(tfm_cbc %p, tfm_aes %p, mic %p, " + "n %p, a %p, b %p, blen %zu)\n", + tfm_cbc, tfm_aes, mic, n, a, b, blen); + /* + * These checks should be compile time optimized out + * ensure @a fills b1's mac_header and following fields + */ + WARN_ON(sizeof(*a) != sizeof(b1) - sizeof(b1.la)); + WARN_ON(sizeof(b0) != sizeof(struct aes_ccm_block)); + WARN_ON(sizeof(b1) != sizeof(struct aes_ccm_block)); + WARN_ON(sizeof(ax) != sizeof(struct aes_ccm_block)); + + result = -ENOMEM; + zero_padding = sizeof(struct aes_ccm_block) + - blen % sizeof(struct aes_ccm_block); + zero_padding = blen % sizeof(struct aes_ccm_block); + if (zero_padding) + zero_padding = sizeof(struct aes_ccm_block) - zero_padding; + dst_size = blen + sizeof(b0) + sizeof(b1) + zero_padding; + dst_buf = kzalloc(dst_size, GFP_KERNEL); + if (dst_buf == NULL) { + printk(KERN_ERR "E: can't alloc destination buffer\n"); + goto error_dst_buf; + } + + iv = crypto_blkcipher_crt(tfm_cbc)->iv; + ivsize = crypto_blkcipher_ivsize(tfm_cbc); + memset(iv, 0, ivsize); + + /* Setup B0 */ + b0.flags = 0x59; /* Format B0 */ + b0.ccm_nonce = *n; + b0.lm = cpu_to_be16(0); /* WUSB1.0[6.5] sez l(m) is 0 */ + + /* Setup B1 + * + * The WUSB spec is anything but clear! WUSB1.0[6.5] + * says that to initialize B1 from A with 'l(a) = blen + + * 14'--after clarification, it means to use A's contents + * for MAC Header, EO, sec reserved and padding. + */ + b1.la = cpu_to_be16(blen + 14); + memcpy(&b1.mac_header, a, sizeof(*a)); + + d_printf(4, NULL, "I: B0 (%zu bytes)\n", sizeof(b0)); + d_dump(4, NULL, &b0, sizeof(b0)); + d_printf(4, NULL, "I: B1 (%zu bytes)\n", sizeof(b1)); + d_dump(4, NULL, &b1, sizeof(b1)); + d_printf(4, NULL, "I: B (%zu bytes)\n", blen); + d_dump(4, NULL, b, blen); + d_printf(4, NULL, "I: B 0-padding (%zu bytes)\n", zero_padding); + d_printf(4, NULL, "D: IV before crypto (%zu)\n", ivsize); + d_dump(4, NULL, iv, ivsize); + + sg_init_table(sg, ARRAY_SIZE(sg)); + sg_set_buf(&sg[0], &b0, sizeof(b0)); + sg_set_buf(&sg[1], &b1, sizeof(b1)); + sg_set_buf(&sg[2], b, blen); + /* 0 if well behaved :) */ + sg_set_buf(&sg[3], bzero, zero_padding); + sg_init_one(&sg_dst, dst_buf, dst_size); + + desc.tfm = tfm_cbc; + desc.flags = 0; + result = crypto_blkcipher_encrypt(&desc, &sg_dst, sg, dst_size); + if (result < 0) { + printk(KERN_ERR "E: can't compute CBC-MAC tag (MIC): %d\n", + result); + goto error_cbc_crypt; + } + d_printf(4, NULL, "D: MIC tag\n"); + d_dump(4, NULL, iv, ivsize); + + /* Now we crypt the MIC Tag (*iv) with Ax -- values per WUSB1.0[6.5] + * The procedure is to AES crypt the A0 block and XOR the MIC + * Tag agains it; we only do the first 8 bytes and place it + * directly in the destination buffer. + * + * POS Crypto API: size is assumed to be AES's block size. + * Thanks for documenting it -- tip taken from airo.c + */ + ax.flags = 0x01; /* as per WUSB 1.0 spec */ + ax.ccm_nonce = *n; + ax.counter = 0; + crypto_cipher_encrypt_one(tfm_aes, (void *)&ax, (void *)&ax); + bytewise_xor(mic, &ax, iv, 8); + d_printf(4, NULL, "D: CTR[MIC]\n"); + d_dump(4, NULL, &ax, 8); + d_printf(4, NULL, "D: CCM-MIC tag\n"); + d_dump(4, NULL, mic, 8); + result = 8; +error_cbc_crypt: + kfree(dst_buf); +error_dst_buf: + d_fnend(3, NULL, "(tfm_cbc %p, tfm_aes %p, mic %p, " + "n %p, a %p, b %p, blen %zu)\n", + tfm_cbc, tfm_aes, mic, n, a, b, blen); + return result; +} + +/* + * WUSB Pseudo Random Function (WUSB1.0[6.5]) + * + * @b: buffer to the source data; cannot be a global or const local + * (will confuse the scatterlists) + */ +ssize_t wusb_prf(void *out, size_t out_size, + const u8 key[16], const struct aes_ccm_nonce *_n, + const struct aes_ccm_label *a, + const void *b, size_t blen, size_t len) +{ + ssize_t result, bytes = 0, bitr; + struct aes_ccm_nonce n = *_n; + struct crypto_blkcipher *tfm_cbc; + struct crypto_cipher *tfm_aes; + u64 sfn = 0; + __le64 sfn_le; + + d_fnstart(3, NULL, "(out %p, out_size %zu, key %p, _n %p, " + "a %p, b %p, blen %zu, len %zu)\n", out, out_size, + key, _n, a, b, blen, len); + + tfm_cbc = crypto_alloc_blkcipher("cbc(aes)", 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(tfm_cbc)) { + result = PTR_ERR(tfm_cbc); + printk(KERN_ERR "E: can't load CBC(AES): %d\n", (int)result); + goto error_alloc_cbc; + } + result = crypto_blkcipher_setkey(tfm_cbc, key, 16); + if (result < 0) { + printk(KERN_ERR "E: can't set CBC key: %d\n", (int)result); + goto error_setkey_cbc; + } + + tfm_aes = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(tfm_aes)) { + result = PTR_ERR(tfm_aes); + printk(KERN_ERR "E: can't load AES: %d\n", (int)result); + goto error_alloc_aes; + } + result = crypto_cipher_setkey(tfm_aes, key, 16); + if (result < 0) { + printk(KERN_ERR "E: can't set AES key: %d\n", (int)result); + goto error_setkey_aes; + } + + for (bitr = 0; bitr < (len + 63) / 64; bitr++) { + sfn_le = cpu_to_le64(sfn++); + memcpy(&n.sfn, &sfn_le, sizeof(n.sfn)); /* n.sfn++... */ + result = wusb_ccm_mac(tfm_cbc, tfm_aes, out + bytes, + &n, a, b, blen); + if (result < 0) + goto error_ccm_mac; + bytes += result; + } + result = bytes; +error_ccm_mac: +error_setkey_aes: + crypto_free_cipher(tfm_aes); +error_alloc_aes: +error_setkey_cbc: + crypto_free_blkcipher(tfm_cbc); +error_alloc_cbc: + d_fnend(3, NULL, "(out %p, out_size %zu, key %p, _n %p, " + "a %p, b %p, blen %zu, len %zu) = %d\n", out, out_size, + key, _n, a, b, blen, len, (int)bytes); + return result; +} + +/* WUSB1.0[A.2] test vectors */ +static const u8 stv_hsmic_key[16] = { + 0x4b, 0x79, 0xa3, 0xcf, 0xe5, 0x53, 0x23, 0x9d, + 0xd7, 0xc1, 0x6d, 0x1c, 0x2d, 0xab, 0x6d, 0x3f +}; + +static const struct aes_ccm_nonce stv_hsmic_n = { + .sfn = { 0 }, + .tkid = { 0x76, 0x98, 0x01, }, + .dest_addr = { .data = { 0xbe, 0x00 } }, + .src_addr = { .data = { 0x76, 0x98 } }, +}; + +/* + * Out-of-band MIC Generation verification code + * + */ +static int wusb_oob_mic_verify(void) +{ + int result; + u8 mic[8]; + /* WUSB1.0[A.2] test vectors + * + * Need to keep it in the local stack as GCC 4.1.3something + * messes up and generates noise. + */ + struct usb_handshake stv_hsmic_hs = { + .bMessageNumber = 2, + .bStatus = 00, + .tTKID = { 0x76, 0x98, 0x01 }, + .bReserved = 00, + .CDID = { 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, + 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, + 0x3c, 0x3d, 0x3e, 0x3f }, + .nonce = { 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, + 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, + 0x2c, 0x2d, 0x2e, 0x2f }, + .MIC = { 0x75, 0x6a, 0x97, 0x51, 0x0c, 0x8c, + 0x14, 0x7b } , + }; + size_t hs_size; + + result = wusb_oob_mic(mic, stv_hsmic_key, &stv_hsmic_n, &stv_hsmic_hs); + if (result < 0) + printk(KERN_ERR "E: WUSB OOB MIC test: failed: %d\n", result); + else if (memcmp(stv_hsmic_hs.MIC, mic, sizeof(mic))) { + printk(KERN_ERR "E: OOB MIC test: " + "mismatch between MIC result and WUSB1.0[A2]\n"); + hs_size = sizeof(stv_hsmic_hs) - sizeof(stv_hsmic_hs.MIC); + printk(KERN_ERR "E: Handshake2 in: (%zu bytes)\n", hs_size); + dump_bytes(NULL, &stv_hsmic_hs, hs_size); + printk(KERN_ERR "E: CCM Nonce in: (%zu bytes)\n", + sizeof(stv_hsmic_n)); + dump_bytes(NULL, &stv_hsmic_n, sizeof(stv_hsmic_n)); + printk(KERN_ERR "E: MIC out:\n"); + dump_bytes(NULL, mic, sizeof(mic)); + printk(KERN_ERR "E: MIC out (from WUSB1.0[A.2]):\n"); + dump_bytes(NULL, stv_hsmic_hs.MIC, sizeof(stv_hsmic_hs.MIC)); + result = -EINVAL; + } else + result = 0; + return result; +} + +/* + * Test vectors for Key derivation + * + * These come from WUSB1.0[6.5.1], the vectors in WUSB1.0[A.1] + * (errata corrected in 2005/07). + */ +static const u8 stv_key_a1[16] __attribute__ ((__aligned__(4))) = { + 0xf0, 0xe1, 0xd2, 0xc3, 0xb4, 0xa5, 0x96, 0x87, + 0x78, 0x69, 0x5a, 0x4b, 0x3c, 0x2d, 0x1e, 0x0f +}; + +static const struct aes_ccm_nonce stv_keydvt_n_a1 = { + .sfn = { 0 }, + .tkid = { 0x76, 0x98, 0x01, }, + .dest_addr = { .data = { 0xbe, 0x00 } }, + .src_addr = { .data = { 0x76, 0x98 } }, +}; + +static const struct wusb_keydvt_out stv_keydvt_out_a1 = { + .kck = { + 0x4b, 0x79, 0xa3, 0xcf, 0xe5, 0x53, 0x23, 0x9d, + 0xd7, 0xc1, 0x6d, 0x1c, 0x2d, 0xab, 0x6d, 0x3f + }, + .ptk = { + 0xc8, 0x70, 0x62, 0x82, 0xb6, 0x7c, 0xe9, 0x06, + 0x7b, 0xc5, 0x25, 0x69, 0xf2, 0x36, 0x61, 0x2d + } +}; + +/* + * Performa a test to make sure we match the vectors defined in + * WUSB1.0[A.1](Errata2006/12) + */ +static int wusb_key_derive_verify(void) +{ + int result = 0; + struct wusb_keydvt_out keydvt_out; + /* These come from WUSB1.0[A.1] + 2006/12 errata + * NOTE: can't make this const or global -- somehow it seems + * the scatterlists for crypto get confused and we get + * bad data. There is no doc on this... */ + struct wusb_keydvt_in stv_keydvt_in_a1 = { + .hnonce = { + 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, + 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f + }, + .dnonce = { + 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, + 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f + } + }; + + result = wusb_key_derive(&keydvt_out, stv_key_a1, &stv_keydvt_n_a1, + &stv_keydvt_in_a1); + if (result < 0) + printk(KERN_ERR "E: WUSB key derivation test: " + "derivation failed: %d\n", result); + if (memcmp(&stv_keydvt_out_a1, &keydvt_out, sizeof(keydvt_out))) { + printk(KERN_ERR "E: WUSB key derivation test: " + "mismatch between key derivation result " + "and WUSB1.0[A1] Errata 2006/12\n"); + printk(KERN_ERR "E: keydvt in: key (%zu bytes)\n", + sizeof(stv_key_a1)); + dump_bytes(NULL, stv_key_a1, sizeof(stv_key_a1)); + printk(KERN_ERR "E: keydvt in: nonce (%zu bytes)\n", + sizeof(stv_keydvt_n_a1)); + dump_bytes(NULL, &stv_keydvt_n_a1, sizeof(stv_keydvt_n_a1)); + printk(KERN_ERR "E: keydvt in: hnonce & dnonce (%zu bytes)\n", + sizeof(stv_keydvt_in_a1)); + dump_bytes(NULL, &stv_keydvt_in_a1, sizeof(stv_keydvt_in_a1)); + printk(KERN_ERR "E: keydvt out: KCK\n"); + dump_bytes(NULL, &keydvt_out.kck, sizeof(keydvt_out.kck)); + printk(KERN_ERR "E: keydvt out: PTK\n"); + dump_bytes(NULL, &keydvt_out.ptk, sizeof(keydvt_out.ptk)); + result = -EINVAL; + } else + result = 0; + return result; +} + +/* + * Initialize crypto system + * + * FIXME: we do nothing now, other than verifying. Later on we'll + * cache the encryption stuff, so that's why we have a separate init. + */ +int wusb_crypto_init(void) +{ + int result; + + result = wusb_key_derive_verify(); + if (result < 0) + return result; + return wusb_oob_mic_verify(); +} + +void wusb_crypto_exit(void) +{ + /* FIXME: free cached crypto transforms */ +} diff --git a/drivers/usb/wusbcore/dev-sysfs.c b/drivers/usb/wusbcore/dev-sysfs.c new file mode 100644 index 000000000000..7897a19652e5 --- /dev/null +++ b/drivers/usb/wusbcore/dev-sysfs.c @@ -0,0 +1,143 @@ +/* + * WUSB devices + * sysfs bindings + * + * Copyright (C) 2007 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * Get them out of the way... + */ + +#include <linux/jiffies.h> +#include <linux/ctype.h> +#include <linux/workqueue.h> +#include "wusbhc.h" + +#undef D_LOCAL +#define D_LOCAL 4 +#include <linux/uwb/debug.h> + +static ssize_t wusb_disconnect_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct usb_device *usb_dev; + struct wusbhc *wusbhc; + unsigned command; + u8 port_idx; + + if (sscanf(buf, "%u", &command) != 1) + return -EINVAL; + if (command == 0) + return size; + usb_dev = to_usb_device(dev); + wusbhc = wusbhc_get_by_usb_dev(usb_dev); + if (wusbhc == NULL) + return -ENODEV; + + mutex_lock(&wusbhc->mutex); + port_idx = wusb_port_no_to_idx(usb_dev->portnum); + __wusbhc_dev_disable(wusbhc, port_idx); + mutex_unlock(&wusbhc->mutex); + wusbhc_put(wusbhc); + return size; +} +static DEVICE_ATTR(wusb_disconnect, 0200, NULL, wusb_disconnect_store); + +static ssize_t wusb_cdid_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + ssize_t result; + struct wusb_dev *wusb_dev; + + wusb_dev = wusb_dev_get_by_usb_dev(to_usb_device(dev)); + if (wusb_dev == NULL) + return -ENODEV; + result = ckhdid_printf(buf, PAGE_SIZE, &wusb_dev->cdid); + strcat(buf, "\n"); + wusb_dev_put(wusb_dev); + return result + 1; +} +static DEVICE_ATTR(wusb_cdid, 0444, wusb_cdid_show, NULL); + +static ssize_t wusb_ck_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + int result; + struct usb_device *usb_dev; + struct wusbhc *wusbhc; + struct wusb_ckhdid ck; + + result = sscanf(buf, + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx\n", + &ck.data[0] , &ck.data[1], + &ck.data[2] , &ck.data[3], + &ck.data[4] , &ck.data[5], + &ck.data[6] , &ck.data[7], + &ck.data[8] , &ck.data[9], + &ck.data[10], &ck.data[11], + &ck.data[12], &ck.data[13], + &ck.data[14], &ck.data[15]); + if (result != 16) + return -EINVAL; + + usb_dev = to_usb_device(dev); + wusbhc = wusbhc_get_by_usb_dev(usb_dev); + if (wusbhc == NULL) + return -ENODEV; + result = wusb_dev_4way_handshake(wusbhc, usb_dev->wusb_dev, &ck); + memset(&ck, 0, sizeof(ck)); + wusbhc_put(wusbhc); + return result < 0 ? result : size; +} +static DEVICE_ATTR(wusb_ck, 0200, NULL, wusb_ck_store); + +static struct attribute *wusb_dev_attrs[] = { + &dev_attr_wusb_disconnect.attr, + &dev_attr_wusb_cdid.attr, + &dev_attr_wusb_ck.attr, + NULL, +}; + +static struct attribute_group wusb_dev_attr_group = { + .name = NULL, /* we want them in the same directory */ + .attrs = wusb_dev_attrs, +}; + +int wusb_dev_sysfs_add(struct wusbhc *wusbhc, struct usb_device *usb_dev, + struct wusb_dev *wusb_dev) +{ + int result = sysfs_create_group(&usb_dev->dev.kobj, + &wusb_dev_attr_group); + struct device *dev = &usb_dev->dev; + if (result < 0) + dev_err(dev, "Cannot register WUSB-dev attributes: %d\n", + result); + return result; +} + +void wusb_dev_sysfs_rm(struct wusb_dev *wusb_dev) +{ + struct usb_device *usb_dev = wusb_dev->usb_dev; + if (usb_dev) + sysfs_remove_group(&usb_dev->dev.kobj, &wusb_dev_attr_group); +} diff --git a/drivers/usb/wusbcore/devconnect.c b/drivers/usb/wusbcore/devconnect.c new file mode 100644 index 000000000000..f45d777bef34 --- /dev/null +++ b/drivers/usb/wusbcore/devconnect.c @@ -0,0 +1,1297 @@ +/* + * WUSB Wire Adapter: Control/Data Streaming Interface (WUSB[8]) + * Device Connect handling + * + * Copyright (C) 2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + * FIXME: this file needs to be broken up, it's grown too big + * + * + * WUSB1.0[7.1, 7.5.1, ] + * + * WUSB device connection is kind of messy. Some background: + * + * When a device wants to connect it scans the UWB radio channels + * looking for a WUSB Channel; a WUSB channel is defined by MMCs + * (Micro Managed Commands or something like that) [see + * Design-overview for more on this] . + * + * So, device scans the radio, finds MMCs and thus a host and checks + * when the next DNTS is. It sends a Device Notification Connect + * (DN_Connect); the host picks it up (through nep.c and notif.c, ends + * up in wusb_devconnect_ack(), which creates a wusb_dev structure in + * wusbhc->port[port_number].wusb_dev), assigns an unauth address + * to the device (this means from 0x80 to 0xfe) and sends, in the MMC + * a Connect Ack Information Element (ConnAck IE). + * + * So now the device now has a WUSB address. From now on, we use + * that to talk to it in the RPipes. + * + * ASSUMPTIONS: + * + * - We use the the as device address the port number where it is + * connected (port 0 doesn't exist). For unauth, it is 128 + that. + * + * ROADMAP: + * + * This file contains the logic for doing that--entry points: + * + * wusb_devconnect_ack() Ack a device until _acked() called. + * Called by notif.c:wusb_handle_dn_connect() + * when a DN_Connect is received. + * + * wusbhc_devconnect_auth() Called by rh.c:wusbhc_rh_port_reset() when + * doing the device connect sequence. + * + * wusb_devconnect_acked() Ack done, release resources. + * + * wusb_handle_dn_alive() Called by notif.c:wusb_handle_dn() + * for processing a DN_Alive pong from a device. + * + * wusb_handle_dn_disconnect()Called by notif.c:wusb_handle_dn() to + * process a disconenct request from a + * device. + * + * wusb_dev_reset() Called by rh.c:wusbhc_rh_port_reset() when + * resetting a device. + * + * __wusb_dev_disable() Called by rh.c:wusbhc_rh_clear_port_feat() when + * disabling a port. + * + * wusb_devconnect_create() Called when creating the host by + * lc.c:wusbhc_create(). + * + * wusb_devconnect_destroy() Cleanup called removing the host. Called + * by lc.c:wusbhc_destroy(). + * + * Each Wireless USB host maintains a list of DN_Connect requests + * (actually we maintain a list of pending Connect Acks, the + * wusbhc->ca_list). + * + * LIFE CYCLE OF port->wusb_dev + * + * Before the @wusbhc structure put()s the reference it owns for + * port->wusb_dev [and clean the wusb_dev pointer], it needs to + * lock @wusbhc->mutex. + */ + +#include <linux/jiffies.h> +#include <linux/ctype.h> +#include <linux/workqueue.h> +#include "wusbhc.h" + +#undef D_LOCAL +#define D_LOCAL 1 +#include <linux/uwb/debug.h> + +static void wusbhc_devconnect_acked_work(struct work_struct *work); + +static void wusb_dev_free(struct wusb_dev *wusb_dev) +{ + if (wusb_dev) { + kfree(wusb_dev->set_gtk_req); + usb_free_urb(wusb_dev->set_gtk_urb); + kfree(wusb_dev); + } +} + +static struct wusb_dev *wusb_dev_alloc(struct wusbhc *wusbhc) +{ + struct wusb_dev *wusb_dev; + struct urb *urb; + struct usb_ctrlrequest *req; + + wusb_dev = kzalloc(sizeof(*wusb_dev), GFP_KERNEL); + if (wusb_dev == NULL) + goto err; + + wusb_dev->wusbhc = wusbhc; + + INIT_WORK(&wusb_dev->devconnect_acked_work, wusbhc_devconnect_acked_work); + + urb = usb_alloc_urb(0, GFP_KERNEL); + if (urb == NULL) + goto err; + + req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL); + if (req == NULL) + goto err; + + req->bRequestType = USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE; + req->bRequest = USB_REQ_SET_DESCRIPTOR; + req->wValue = cpu_to_le16(USB_DT_KEY << 8 | wusbhc->gtk_index); + req->wIndex = 0; + req->wLength = cpu_to_le16(wusbhc->gtk.descr.bLength); + + wusb_dev->set_gtk_urb = urb; + wusb_dev->set_gtk_req = req; + + return wusb_dev; +err: + wusb_dev_free(wusb_dev); + return NULL; +} + + +/* + * Using the Connect-Ack list, fill out the @wusbhc Connect-Ack WUSB IE + * properly so that it can be added to the MMC. + * + * We just get the @wusbhc->ca_list and fill out the first four ones or + * less (per-spec WUSB1.0[7.5, before T7-38). If the ConnectAck WUSB + * IE is not allocated, we alloc it. + * + * @wusbhc->mutex must be taken + */ +static void wusbhc_fill_cack_ie(struct wusbhc *wusbhc) +{ + unsigned cnt; + struct wusb_dev *dev_itr; + struct wuie_connect_ack *cack_ie; + + cack_ie = &wusbhc->cack_ie; + cnt = 0; + list_for_each_entry(dev_itr, &wusbhc->cack_list, cack_node) { + cack_ie->blk[cnt].CDID = dev_itr->cdid; + cack_ie->blk[cnt].bDeviceAddress = dev_itr->addr; + if (++cnt >= WUIE_ELT_MAX) + break; + } + cack_ie->hdr.bLength = sizeof(cack_ie->hdr) + + cnt * sizeof(cack_ie->blk[0]); +} + +/* + * Register a new device that wants to connect + * + * A new device wants to connect, so we add it to the Connect-Ack + * list. We give it an address in the unauthorized range (bit 8 set); + * user space will have to drive authorization further on. + * + * @dev_addr: address to use for the device (which is also the port + * number). + * + * @wusbhc->mutex must be taken + */ +static struct wusb_dev *wusbhc_cack_add(struct wusbhc *wusbhc, + struct wusb_dn_connect *dnc, + const char *pr_cdid, u8 port_idx) +{ + struct device *dev = wusbhc->dev; + struct wusb_dev *wusb_dev; + int new_connection = wusb_dn_connect_new_connection(dnc); + u8 dev_addr; + int result; + + /* Is it registered already? */ + list_for_each_entry(wusb_dev, &wusbhc->cack_list, cack_node) + if (!memcmp(&wusb_dev->cdid, &dnc->CDID, + sizeof(wusb_dev->cdid))) + return wusb_dev; + /* We don't have it, create an entry, register it */ + wusb_dev = wusb_dev_alloc(wusbhc); + if (wusb_dev == NULL) + return NULL; + wusb_dev_init(wusb_dev); + wusb_dev->cdid = dnc->CDID; + wusb_dev->port_idx = port_idx; + + /* + * Devices are always available within the cluster reservation + * and since the hardware will take the intersection of the + * per-device availability and the cluster reservation, the + * per-device availability can simply be set to always + * available. + */ + bitmap_fill(wusb_dev->availability.bm, UWB_NUM_MAS); + + /* FIXME: handle reconnects instead of assuming connects are + always new. */ + if (1 && new_connection == 0) + new_connection = 1; + if (new_connection) { + dev_addr = (port_idx + 2) | WUSB_DEV_ADDR_UNAUTH; + + dev_info(dev, "Connecting new WUSB device to address %u, " + "port %u\n", dev_addr, port_idx); + + result = wusb_set_dev_addr(wusbhc, wusb_dev, dev_addr); + if (result < 0) + return NULL; + } + wusb_dev->entry_ts = jiffies; + list_add_tail(&wusb_dev->cack_node, &wusbhc->cack_list); + wusbhc->cack_count++; + wusbhc_fill_cack_ie(wusbhc); + return wusb_dev; +} + +/* + * Remove a Connect-Ack context entry from the HCs view + * + * @wusbhc->mutex must be taken + */ +static void wusbhc_cack_rm(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev) +{ + struct device *dev = wusbhc->dev; + d_fnstart(3, dev, "(wusbhc %p wusb_dev %p)\n", wusbhc, wusb_dev); + list_del_init(&wusb_dev->cack_node); + wusbhc->cack_count--; + wusbhc_fill_cack_ie(wusbhc); + d_fnend(3, dev, "(wusbhc %p wusb_dev %p) = void\n", wusbhc, wusb_dev); +} + +/* + * @wusbhc->mutex must be taken */ +static +void wusbhc_devconnect_acked(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev) +{ + struct device *dev = wusbhc->dev; + d_fnstart(3, dev, "(wusbhc %p wusb_dev %p)\n", wusbhc, wusb_dev); + wusbhc_cack_rm(wusbhc, wusb_dev); + if (wusbhc->cack_count) + wusbhc_mmcie_set(wusbhc, 0, 0, &wusbhc->cack_ie.hdr); + else + wusbhc_mmcie_rm(wusbhc, &wusbhc->cack_ie.hdr); + d_fnend(3, dev, "(wusbhc %p wusb_dev %p) = void\n", wusbhc, wusb_dev); +} + +static void wusbhc_devconnect_acked_work(struct work_struct *work) +{ + struct wusb_dev *wusb_dev = container_of(work, struct wusb_dev, + devconnect_acked_work); + struct wusbhc *wusbhc = wusb_dev->wusbhc; + + mutex_lock(&wusbhc->mutex); + wusbhc_devconnect_acked(wusbhc, wusb_dev); + mutex_unlock(&wusbhc->mutex); +} + +/* + * Ack a device for connection + * + * FIXME: docs + * + * @pr_cdid: Printable CDID...hex Use @dnc->cdid for the real deal. + * + * So we get the connect ack IE (may have been allocated already), + * find an empty connect block, an empty virtual port, create an + * address with it (see below), make it an unauth addr [bit 7 set] and + * set the MMC. + * + * Addresses: because WUSB hosts have no downstream hubs, we can do a + * 1:1 mapping between 'port number' and device + * address. This simplifies many things, as during this + * initial connect phase the USB stack has no knoledge of + * the device and hasn't assigned an address yet--we know + * USB's choose_address() will use the same euristics we + * use here, so we can assume which address will be assigned. + * + * USB stack always assigns address 1 to the root hub, so + * to the port number we add 2 (thus virtual port #0 is + * addr #2). + * + * @wusbhc shall be referenced + */ +static +void wusbhc_devconnect_ack(struct wusbhc *wusbhc, struct wusb_dn_connect *dnc, + const char *pr_cdid) +{ + int result; + struct device *dev = wusbhc->dev; + struct wusb_dev *wusb_dev; + struct wusb_port *port; + unsigned idx, devnum; + + d_fnstart(3, dev, "(%p, %p, %s)\n", wusbhc, dnc, pr_cdid); + mutex_lock(&wusbhc->mutex); + + /* Check we are not handling it already */ + for (idx = 0; idx < wusbhc->ports_max; idx++) { + port = wusb_port_by_idx(wusbhc, idx); + if (port->wusb_dev + && memcmp(&dnc->CDID, &port->wusb_dev->cdid, sizeof(dnc->CDID)) == 0) + goto error_unlock; + } + /* Look up those fake ports we have for a free one */ + for (idx = 0; idx < wusbhc->ports_max; idx++) { + port = wusb_port_by_idx(wusbhc, idx); + if ((port->status & USB_PORT_STAT_POWER) + && !(port->status & USB_PORT_STAT_CONNECTION)) + break; + } + if (idx >= wusbhc->ports_max) { + dev_err(dev, "Host controller can't connect more devices " + "(%u already connected); device %s rejected\n", + wusbhc->ports_max, pr_cdid); + /* NOTE: we could send a WUIE_Disconnect here, but we haven't + * event acked, so the device will eventually timeout the + * connection, right? */ + goto error_unlock; + } + + devnum = idx + 2; + + /* Make sure we are using no crypto on that "virtual port" */ + wusbhc->set_ptk(wusbhc, idx, 0, NULL, 0); + + /* Grab a filled in Connect-Ack context, fill out the + * Connect-Ack Wireless USB IE, set the MMC */ + wusb_dev = wusbhc_cack_add(wusbhc, dnc, pr_cdid, idx); + if (wusb_dev == NULL) + goto error_unlock; + result = wusbhc_mmcie_set(wusbhc, 0, 0, &wusbhc->cack_ie.hdr); + if (result < 0) + goto error_unlock; + /* Give the device at least 2ms (WUSB1.0[7.5.1p3]), let's do + * three for a good measure */ + msleep(3); + port->wusb_dev = wusb_dev; + port->status |= USB_PORT_STAT_CONNECTION; + port->change |= USB_PORT_STAT_C_CONNECTION; + port->reset_count = 0; + /* Now the port status changed to connected; khubd will + * pick the change up and try to reset the port to bring it to + * the enabled state--so this process returns up to the stack + * and it calls back into wusbhc_rh_port_reset() who will call + * devconnect_auth(). + */ +error_unlock: + mutex_unlock(&wusbhc->mutex); + d_fnend(3, dev, "(%p, %p, %s) = void\n", wusbhc, dnc, pr_cdid); + return; + +} + +/* + * Disconnect a Wireless USB device from its fake port + * + * Marks the port as disconnected so that khubd can pick up the change + * and drops our knowledge about the device. + * + * Assumes there is a device connected + * + * @port_index: zero based port number + * + * NOTE: @wusbhc->mutex is locked + * + * WARNING: From here it is not very safe to access anything hanging off + * wusb_dev + */ +static void __wusbhc_dev_disconnect(struct wusbhc *wusbhc, + struct wusb_port *port) +{ + struct device *dev = wusbhc->dev; + struct wusb_dev *wusb_dev = port->wusb_dev; + + d_fnstart(3, dev, "(wusbhc %p, port %p)\n", wusbhc, port); + port->status &= ~(USB_PORT_STAT_CONNECTION | USB_PORT_STAT_ENABLE + | USB_PORT_STAT_SUSPEND | USB_PORT_STAT_RESET + | USB_PORT_STAT_LOW_SPEED | USB_PORT_STAT_HIGH_SPEED); + port->change |= USB_PORT_STAT_C_CONNECTION | USB_PORT_STAT_C_ENABLE; + if (wusb_dev) { + if (!list_empty(&wusb_dev->cack_node)) + list_del_init(&wusb_dev->cack_node); + /* For the one in cack_add() */ + wusb_dev_put(wusb_dev); + } + port->wusb_dev = NULL; + /* don't reset the reset_count to zero or wusbhc_rh_port_reset will get + * confused! We only reset to zero when we connect a new device. + */ + + /* After a device disconnects, change the GTK (see [WUSB] + * section 6.2.11.2). */ + wusbhc_gtk_rekey(wusbhc); + + d_fnend(3, dev, "(wusbhc %p, port %p) = void\n", wusbhc, port); + /* The Wireless USB part has forgotten about the device already; now + * khubd's timer will pick up the disconnection and remove the USB + * device from the system + */ +} + +/* + * Authenticate a device into the WUSB Cluster + * + * Called from the Root Hub code (rh.c:wusbhc_rh_port_reset()) when + * asking for a reset on a port that is not enabled (ie: first connect + * on the port). + * + * Performs the 4way handshake to allow the device to comunicate w/ the + * WUSB Cluster securely; once done, issue a request to the device for + * it to change to address 0. + * + * This mimics the reset step of Wired USB that once resetting a + * device, leaves the port in enabled state and the dev with the + * default address (0). + * + * WUSB1.0[7.1.2] + * + * @port_idx: port where the change happened--This is the index into + * the wusbhc port array, not the USB port number. + */ +int wusbhc_devconnect_auth(struct wusbhc *wusbhc, u8 port_idx) +{ + struct device *dev = wusbhc->dev; + struct wusb_port *port = wusb_port_by_idx(wusbhc, port_idx); + + d_fnstart(3, dev, "(%p, %u)\n", wusbhc, port_idx); + port->status &= ~USB_PORT_STAT_RESET; + port->status |= USB_PORT_STAT_ENABLE; + port->change |= USB_PORT_STAT_C_RESET | USB_PORT_STAT_C_ENABLE; + d_fnend(3, dev, "(%p, %u) = 0\n", wusbhc, port_idx); + return 0; +} + +/* + * Refresh the list of keep alives to emit in the MMC + * + * Some devices don't respond to keep alives unless they've been + * authenticated, so skip unauthenticated devices. + * + * We only publish the first four devices that have a coming timeout + * condition. Then when we are done processing those, we go for the + * next ones. We ignore the ones that have timed out already (they'll + * be purged). + * + * This might cause the first devices to timeout the last devices in + * the port array...FIXME: come up with a better algorithm? + * + * Note we can't do much about MMC's ops errors; we hope next refresh + * will kind of handle it. + * + * NOTE: @wusbhc->mutex is locked + */ +static void __wusbhc_keep_alive(struct wusbhc *wusbhc) +{ + struct device *dev = wusbhc->dev; + unsigned cnt; + struct wusb_dev *wusb_dev; + struct wusb_port *wusb_port; + struct wuie_keep_alive *ie = &wusbhc->keep_alive_ie; + unsigned keep_alives, old_keep_alives; + + old_keep_alives = ie->hdr.bLength - sizeof(ie->hdr); + keep_alives = 0; + for (cnt = 0; + keep_alives <= WUIE_ELT_MAX && cnt < wusbhc->ports_max; + cnt++) { + unsigned tt = msecs_to_jiffies(wusbhc->trust_timeout); + + wusb_port = wusb_port_by_idx(wusbhc, cnt); + wusb_dev = wusb_port->wusb_dev; + + if (wusb_dev == NULL) + continue; + if (wusb_dev->usb_dev == NULL || !wusb_dev->usb_dev->authenticated) + continue; + + if (time_after(jiffies, wusb_dev->entry_ts + tt)) { + dev_err(dev, "KEEPALIVE: device %u timed out\n", + wusb_dev->addr); + __wusbhc_dev_disconnect(wusbhc, wusb_port); + } else if (time_after(jiffies, wusb_dev->entry_ts + tt/2)) { + /* Approaching timeout cut out, need to refresh */ + ie->bDeviceAddress[keep_alives++] = wusb_dev->addr; + } + } + if (keep_alives & 0x1) /* pad to even number ([WUSB] section 7.5.9) */ + ie->bDeviceAddress[keep_alives++] = 0x7f; + ie->hdr.bLength = sizeof(ie->hdr) + + keep_alives*sizeof(ie->bDeviceAddress[0]); + if (keep_alives > 0) + wusbhc_mmcie_set(wusbhc, 10, 5, &ie->hdr); + else if (old_keep_alives != 0) + wusbhc_mmcie_rm(wusbhc, &ie->hdr); +} + +/* + * Do a run through all devices checking for timeouts + */ +static void wusbhc_keep_alive_run(struct work_struct *ws) +{ + struct delayed_work *dw = + container_of(ws, struct delayed_work, work); + struct wusbhc *wusbhc = + container_of(dw, struct wusbhc, keep_alive_timer); + + d_fnstart(5, wusbhc->dev, "(wusbhc %p)\n", wusbhc); + if (wusbhc->active) { + mutex_lock(&wusbhc->mutex); + __wusbhc_keep_alive(wusbhc); + mutex_unlock(&wusbhc->mutex); + queue_delayed_work(wusbd, &wusbhc->keep_alive_timer, + (wusbhc->trust_timeout * CONFIG_HZ)/1000/2); + } + d_fnend(5, wusbhc->dev, "(wusbhc %p) = void\n", wusbhc); + return; +} + +/* + * Find the wusb_dev from its device address. + * + * The device can be found directly from the address (see + * wusb_cack_add() for where the device address is set to port_idx + * +2), except when the address is zero. + */ +static struct wusb_dev *wusbhc_find_dev_by_addr(struct wusbhc *wusbhc, u8 addr) +{ + int p; + + if (addr == 0xff) /* unconnected */ + return NULL; + + if (addr > 0) { + int port = (addr & ~0x80) - 2; + if (port < 0 || port >= wusbhc->ports_max) + return NULL; + return wusb_port_by_idx(wusbhc, port)->wusb_dev; + } + + /* Look for the device with address 0. */ + for (p = 0; p < wusbhc->ports_max; p++) { + struct wusb_dev *wusb_dev = wusb_port_by_idx(wusbhc, p)->wusb_dev; + if (wusb_dev && wusb_dev->addr == addr) + return wusb_dev; + } + return NULL; +} + +/* + * Handle a DN_Alive notification (WUSB1.0[7.6.1]) + * + * This just updates the device activity timestamp and then refreshes + * the keep alive IE. + * + * @wusbhc shall be referenced and unlocked + */ +static void wusbhc_handle_dn_alive(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev) +{ + struct device *dev = wusbhc->dev; + + d_printf(2, dev, "DN ALIVE: device 0x%02x pong\n", wusb_dev->addr); + + mutex_lock(&wusbhc->mutex); + wusb_dev->entry_ts = jiffies; + __wusbhc_keep_alive(wusbhc); + mutex_unlock(&wusbhc->mutex); +} + +/* + * Handle a DN_Connect notification (WUSB1.0[7.6.1]) + * + * @wusbhc + * @pkt_hdr + * @size: Size of the buffer where the notification resides; if the + * notification data suggests there should be more data than + * available, an error will be signaled and the whole buffer + * consumed. + * + * @wusbhc->mutex shall be held + */ +static void wusbhc_handle_dn_connect(struct wusbhc *wusbhc, + struct wusb_dn_hdr *dn_hdr, + size_t size) +{ + struct device *dev = wusbhc->dev; + struct wusb_dn_connect *dnc; + char pr_cdid[WUSB_CKHDID_STRSIZE]; + static const char *beacon_behaviour[] = { + "reserved", + "self-beacon", + "directed-beacon", + "no-beacon" + }; + + d_fnstart(3, dev, "(%p, %p, %zu)\n", wusbhc, dn_hdr, size); + if (size < sizeof(*dnc)) { + dev_err(dev, "DN CONNECT: short notification (%zu < %zu)\n", + size, sizeof(*dnc)); + goto out; + } + + dnc = container_of(dn_hdr, struct wusb_dn_connect, hdr); + ckhdid_printf(pr_cdid, sizeof(pr_cdid), &dnc->CDID); + dev_info(dev, "DN CONNECT: device %s @ %x (%s) wants to %s\n", + pr_cdid, + wusb_dn_connect_prev_dev_addr(dnc), + beacon_behaviour[wusb_dn_connect_beacon_behavior(dnc)], + wusb_dn_connect_new_connection(dnc) ? "connect" : "reconnect"); + /* ACK the connect */ + wusbhc_devconnect_ack(wusbhc, dnc, pr_cdid); +out: + d_fnend(3, dev, "(%p, %p, %zu) = void\n", + wusbhc, dn_hdr, size); + return; +} + +/* + * Handle a DN_Disconnect notification (WUSB1.0[7.6.1]) + * + * Device is going down -- do the disconnect. + * + * @wusbhc shall be referenced and unlocked + */ +static void wusbhc_handle_dn_disconnect(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev) +{ + struct device *dev = wusbhc->dev; + + dev_info(dev, "DN DISCONNECT: device 0x%02x going down\n", wusb_dev->addr); + + mutex_lock(&wusbhc->mutex); + __wusbhc_dev_disconnect(wusbhc, wusb_port_by_idx(wusbhc, wusb_dev->port_idx)); + mutex_unlock(&wusbhc->mutex); +} + +/* + * Reset a WUSB device on a HWA + * + * @wusbhc + * @port_idx Index of the port where the device is + * + * In Wireless USB, a reset is more or less equivalent to a full + * disconnect; so we just do a full disconnect and send the device a + * Device Reset IE (WUSB1.0[7.5.11]) giving it a few millisecs (6 MMCs). + * + * @wusbhc should be refcounted and unlocked + */ +int wusbhc_dev_reset(struct wusbhc *wusbhc, u8 port_idx) +{ + int result; + struct device *dev = wusbhc->dev; + struct wusb_dev *wusb_dev; + struct wuie_reset *ie; + + d_fnstart(3, dev, "(%p, %u)\n", wusbhc, port_idx); + mutex_lock(&wusbhc->mutex); + result = 0; + wusb_dev = wusb_port_by_idx(wusbhc, port_idx)->wusb_dev; + if (wusb_dev == NULL) { + /* reset no device? ignore */ + dev_dbg(dev, "RESET: no device at port %u, ignoring\n", + port_idx); + goto error_unlock; + } + result = -ENOMEM; + ie = kzalloc(sizeof(*ie), GFP_KERNEL); + if (ie == NULL) + goto error_unlock; + ie->hdr.bLength = sizeof(ie->hdr) + sizeof(ie->CDID); + ie->hdr.bIEIdentifier = WUIE_ID_RESET_DEVICE; + ie->CDID = wusb_dev->cdid; + result = wusbhc_mmcie_set(wusbhc, 0xff, 6, &ie->hdr); + if (result < 0) { + dev_err(dev, "RESET: cant's set MMC: %d\n", result); + goto error_kfree; + } + __wusbhc_dev_disconnect(wusbhc, wusb_port_by_idx(wusbhc, port_idx)); + + /* 120ms, hopefully 6 MMCs (FIXME) */ + msleep(120); + wusbhc_mmcie_rm(wusbhc, &ie->hdr); +error_kfree: + kfree(ie); +error_unlock: + mutex_unlock(&wusbhc->mutex); + d_fnend(3, dev, "(%p, %u) = %d\n", wusbhc, port_idx, result); + return result; +} + +/* + * Handle a Device Notification coming a host + * + * The Device Notification comes from a host (HWA, DWA or WHCI) + * wrapped in a set of headers. Somebody else has peeled off those + * headers for us and we just get one Device Notifications. + * + * Invalid DNs (e.g., too short) are discarded. + * + * @wusbhc shall be referenced + * + * FIXMES: + * - implement priorities as in WUSB1.0[Table 7-55]? + */ +void wusbhc_handle_dn(struct wusbhc *wusbhc, u8 srcaddr, + struct wusb_dn_hdr *dn_hdr, size_t size) +{ + struct device *dev = wusbhc->dev; + struct wusb_dev *wusb_dev; + + d_fnstart(3, dev, "(%p, %p)\n", wusbhc, dn_hdr); + + if (size < sizeof(struct wusb_dn_hdr)) { + dev_err(dev, "DN data shorter than DN header (%d < %d)\n", + (int)size, (int)sizeof(struct wusb_dn_hdr)); + goto out; + } + + wusb_dev = wusbhc_find_dev_by_addr(wusbhc, srcaddr); + if (wusb_dev == NULL && dn_hdr->bType != WUSB_DN_CONNECT) { + dev_dbg(dev, "ignoring DN %d from unconnected device %02x\n", + dn_hdr->bType, srcaddr); + goto out; + } + + switch (dn_hdr->bType) { + case WUSB_DN_CONNECT: + wusbhc_handle_dn_connect(wusbhc, dn_hdr, size); + break; + case WUSB_DN_ALIVE: + wusbhc_handle_dn_alive(wusbhc, wusb_dev); + break; + case WUSB_DN_DISCONNECT: + wusbhc_handle_dn_disconnect(wusbhc, wusb_dev); + break; + case WUSB_DN_MASAVAILCHANGED: + case WUSB_DN_RWAKE: + case WUSB_DN_SLEEP: + /* FIXME: handle these DNs. */ + break; + case WUSB_DN_EPRDY: + /* The hardware handles these. */ + break; + default: + dev_warn(dev, "unknown DN %u (%d octets) from %u\n", + dn_hdr->bType, (int)size, srcaddr); + } +out: + d_fnend(3, dev, "(%p, %p) = void\n", wusbhc, dn_hdr); + return; +} +EXPORT_SYMBOL_GPL(wusbhc_handle_dn); + +/* + * Disconnect a WUSB device from a the cluster + * + * @wusbhc + * @port Fake port where the device is (wusbhc index, not USB port number). + * + * In Wireless USB, a disconnect is basically telling the device he is + * being disconnected and forgetting about him. + * + * We send the device a Device Disconnect IE (WUSB1.0[7.5.11]) for 100 + * ms and then keep going. + * + * We don't do much in case of error; we always pretend we disabled + * the port and disconnected the device. If physically the request + * didn't get there (many things can fail in the way there), the stack + * will reject the device's communication attempts. + * + * @wusbhc should be refcounted and locked + */ +void __wusbhc_dev_disable(struct wusbhc *wusbhc, u8 port_idx) +{ + int result; + struct device *dev = wusbhc->dev; + struct wusb_dev *wusb_dev; + struct wuie_disconnect *ie; + + d_fnstart(3, dev, "(%p, %u)\n", wusbhc, port_idx); + result = 0; + wusb_dev = wusb_port_by_idx(wusbhc, port_idx)->wusb_dev; + if (wusb_dev == NULL) { + /* reset no device? ignore */ + dev_dbg(dev, "DISCONNECT: no device at port %u, ignoring\n", + port_idx); + goto error; + } + __wusbhc_dev_disconnect(wusbhc, wusb_port_by_idx(wusbhc, port_idx)); + + result = -ENOMEM; + ie = kzalloc(sizeof(*ie), GFP_KERNEL); + if (ie == NULL) + goto error; + ie->hdr.bLength = sizeof(*ie); + ie->hdr.bIEIdentifier = WUIE_ID_DEVICE_DISCONNECT; + ie->bDeviceAddress = wusb_dev->addr; + result = wusbhc_mmcie_set(wusbhc, 0, 0, &ie->hdr); + if (result < 0) { + dev_err(dev, "DISCONNECT: can't set MMC: %d\n", result); + goto error_kfree; + } + + /* 120ms, hopefully 6 MMCs */ + msleep(100); + wusbhc_mmcie_rm(wusbhc, &ie->hdr); +error_kfree: + kfree(ie); +error: + d_fnend(3, dev, "(%p, %u) = %d\n", wusbhc, port_idx, result); + return; +} + +static void wusb_cap_descr_printf(const unsigned level, struct device *dev, + const struct usb_wireless_cap_descriptor *wcd) +{ + d_printf(level, dev, + "WUSB Capability Descriptor\n" + " bDevCapabilityType 0x%02x\n" + " bmAttributes 0x%02x\n" + " wPhyRates 0x%04x\n" + " bmTFITXPowerInfo 0x%02x\n" + " bmFFITXPowerInfo 0x%02x\n" + " bmBandGroup 0x%04x\n" + " bReserved 0x%02x\n", + wcd->bDevCapabilityType, + wcd->bmAttributes, + le16_to_cpu(wcd->wPHYRates), + wcd->bmTFITXPowerInfo, + wcd->bmFFITXPowerInfo, + wcd->bmBandGroup, + wcd->bReserved); +} + +/* + * Walk over the BOS descriptor, verify and grok it + * + * @usb_dev: referenced + * @wusb_dev: referenced and unlocked + * + * The BOS descriptor is defined at WUSB1.0[7.4.1], and it defines a + * "flexible" way to wrap all kinds of descriptors inside an standard + * descriptor (wonder why they didn't use normal descriptors, + * btw). Not like they lack code. + * + * At the end we go to look for the WUSB Device Capabilities + * (WUSB1.0[7.4.1.1]) that is wrapped in a device capability descriptor + * that is part of the BOS descriptor set. That tells us what does the + * device support (dual role, beacon type, UWB PHY rates). + */ +static int wusb_dev_bos_grok(struct usb_device *usb_dev, + struct wusb_dev *wusb_dev, + struct usb_bos_descriptor *bos, size_t desc_size) +{ + ssize_t result; + struct device *dev = &usb_dev->dev; + void *itr, *top; + + /* Walk over BOS capabilities, verify them */ + itr = (void *)bos + sizeof(*bos); + top = itr + desc_size - sizeof(*bos); + while (itr < top) { + struct usb_dev_cap_header *cap_hdr = itr; + size_t cap_size; + u8 cap_type; + if (top - itr < sizeof(*cap_hdr)) { + dev_err(dev, "Device BUG? premature end of BOS header " + "data [offset 0x%02x]: only %zu bytes left\n", + (int)(itr - (void *)bos), top - itr); + result = -ENOSPC; + goto error_bad_cap; + } + cap_size = cap_hdr->bLength; + cap_type = cap_hdr->bDevCapabilityType; + d_printf(4, dev, "BOS Capability: 0x%02x (%zu bytes)\n", + cap_type, cap_size); + if (cap_size == 0) + break; + if (cap_size > top - itr) { + dev_err(dev, "Device BUG? premature end of BOS data " + "[offset 0x%02x cap %02x %zu bytes]: " + "only %zu bytes left\n", + (int)(itr - (void *)bos), + cap_type, cap_size, top - itr); + result = -EBADF; + goto error_bad_cap; + } + d_dump(3, dev, itr, cap_size); + switch (cap_type) { + case USB_CAP_TYPE_WIRELESS_USB: + if (cap_size != sizeof(*wusb_dev->wusb_cap_descr)) + dev_err(dev, "Device BUG? WUSB Capability " + "descriptor is %zu bytes vs %zu " + "needed\n", cap_size, + sizeof(*wusb_dev->wusb_cap_descr)); + else { + wusb_dev->wusb_cap_descr = itr; + wusb_cap_descr_printf(3, dev, itr); + } + break; + default: + dev_err(dev, "BUG? Unknown BOS capability 0x%02x " + "(%zu bytes) at offset 0x%02x\n", cap_type, + cap_size, (int)(itr - (void *)bos)); + } + itr += cap_size; + } + result = 0; +error_bad_cap: + return result; +} + +/* + * Add information from the BOS descriptors to the device + * + * @usb_dev: referenced + * @wusb_dev: referenced and unlocked + * + * So what we do is we alloc a space for the BOS descriptor of 64 + * bytes; read the first four bytes which include the wTotalLength + * field (WUSB1.0[T7-26]) and if it fits in those 64 bytes, read the + * whole thing. If not we realloc to that size. + * + * Then we call the groking function, that will fill up + * wusb_dev->wusb_cap_descr, which is what we'll need later on. + */ +static int wusb_dev_bos_add(struct usb_device *usb_dev, + struct wusb_dev *wusb_dev) +{ + ssize_t result; + struct device *dev = &usb_dev->dev; + struct usb_bos_descriptor *bos; + size_t alloc_size = 32, desc_size = 4; + + bos = kmalloc(alloc_size, GFP_KERNEL); + if (bos == NULL) + return -ENOMEM; + result = usb_get_descriptor(usb_dev, USB_DT_BOS, 0, bos, desc_size); + if (result < 4) { + dev_err(dev, "Can't get BOS descriptor or too short: %zd\n", + result); + goto error_get_descriptor; + } + desc_size = le16_to_cpu(bos->wTotalLength); + if (desc_size >= alloc_size) { + kfree(bos); + alloc_size = desc_size; + bos = kmalloc(alloc_size, GFP_KERNEL); + if (bos == NULL) + return -ENOMEM; + } + result = usb_get_descriptor(usb_dev, USB_DT_BOS, 0, bos, desc_size); + if (result < 0 || result != desc_size) { + dev_err(dev, "Can't get BOS descriptor or too short (need " + "%zu bytes): %zd\n", desc_size, result); + goto error_get_descriptor; + } + if (result < sizeof(*bos) + || le16_to_cpu(bos->wTotalLength) != desc_size) { + dev_err(dev, "Can't get BOS descriptor or too short (need " + "%zu bytes): %zd\n", desc_size, result); + goto error_get_descriptor; + } + d_printf(2, dev, "Got BOS descriptor %zd bytes, %u capabilities\n", + result, bos->bNumDeviceCaps); + d_dump(2, dev, bos, result); + result = wusb_dev_bos_grok(usb_dev, wusb_dev, bos, result); + if (result < 0) + goto error_bad_bos; + wusb_dev->bos = bos; + return 0; + +error_bad_bos: +error_get_descriptor: + kfree(bos); + wusb_dev->wusb_cap_descr = NULL; + return result; +} + +static void wusb_dev_bos_rm(struct wusb_dev *wusb_dev) +{ + kfree(wusb_dev->bos); + wusb_dev->wusb_cap_descr = NULL; +}; + +static struct usb_wireless_cap_descriptor wusb_cap_descr_default = { + .bLength = sizeof(wusb_cap_descr_default), + .bDescriptorType = USB_DT_DEVICE_CAPABILITY, + .bDevCapabilityType = USB_CAP_TYPE_WIRELESS_USB, + + .bmAttributes = USB_WIRELESS_BEACON_NONE, + .wPHYRates = cpu_to_le16(USB_WIRELESS_PHY_53), + .bmTFITXPowerInfo = 0, + .bmFFITXPowerInfo = 0, + .bmBandGroup = cpu_to_le16(0x0001), /* WUSB1.0[7.4.1] bottom */ + .bReserved = 0 +}; + +/* + * USB stack's device addition Notifier Callback + * + * Called from drivers/usb/core/hub.c when a new device is added; we + * use this hook to perform certain WUSB specific setup work on the + * new device. As well, it is the first time we can connect the + * wusb_dev and the usb_dev. So we note it down in wusb_dev and take a + * reference that we'll drop. + * + * First we need to determine if the device is a WUSB device (else we + * ignore it). For that we use the speed setting (USB_SPEED_VARIABLE) + * [FIXME: maybe we'd need something more definitive]. If so, we track + * it's usb_busd and from there, the WUSB HC. + * + * Because all WUSB HCs are contained in a 'struct wusbhc', voila, we + * get the wusbhc for the device. + * + * We have a reference on @usb_dev (as we are called at the end of its + * enumeration). + * + * NOTE: @usb_dev locked + */ +static void wusb_dev_add_ncb(struct usb_device *usb_dev) +{ + int result = 0; + struct wusb_dev *wusb_dev; + struct wusbhc *wusbhc; + struct device *dev = &usb_dev->dev; + u8 port_idx; + + if (usb_dev->wusb == 0 || usb_dev->devnum == 1) + return; /* skip non wusb and wusb RHs */ + + d_fnstart(3, dev, "(usb_dev %p)\n", usb_dev); + + wusbhc = wusbhc_get_by_usb_dev(usb_dev); + if (wusbhc == NULL) + goto error_nodev; + mutex_lock(&wusbhc->mutex); + wusb_dev = __wusb_dev_get_by_usb_dev(wusbhc, usb_dev); + port_idx = wusb_port_no_to_idx(usb_dev->portnum); + mutex_unlock(&wusbhc->mutex); + if (wusb_dev == NULL) + goto error_nodev; + wusb_dev->usb_dev = usb_get_dev(usb_dev); + usb_dev->wusb_dev = wusb_dev_get(wusb_dev); + result = wusb_dev_sec_add(wusbhc, usb_dev, wusb_dev); + if (result < 0) { + dev_err(dev, "Cannot enable security: %d\n", result); + goto error_sec_add; + } + /* Now query the device for it's BOS and attach it to wusb_dev */ + result = wusb_dev_bos_add(usb_dev, wusb_dev); + if (result < 0) { + dev_err(dev, "Cannot get BOS descriptors: %d\n", result); + goto error_bos_add; + } + result = wusb_dev_sysfs_add(wusbhc, usb_dev, wusb_dev); + if (result < 0) + goto error_add_sysfs; +out: + wusb_dev_put(wusb_dev); + wusbhc_put(wusbhc); +error_nodev: + d_fnend(3, dev, "(usb_dev %p) = void\n", usb_dev); + return; + + wusb_dev_sysfs_rm(wusb_dev); +error_add_sysfs: + wusb_dev_bos_rm(wusb_dev); +error_bos_add: + wusb_dev_sec_rm(wusb_dev); +error_sec_add: + mutex_lock(&wusbhc->mutex); + __wusbhc_dev_disconnect(wusbhc, wusb_port_by_idx(wusbhc, port_idx)); + mutex_unlock(&wusbhc->mutex); + goto out; +} + +/* + * Undo all the steps done at connection by the notifier callback + * + * NOTE: @usb_dev locked + */ +static void wusb_dev_rm_ncb(struct usb_device *usb_dev) +{ + struct wusb_dev *wusb_dev = usb_dev->wusb_dev; + + if (usb_dev->wusb == 0 || usb_dev->devnum == 1) + return; /* skip non wusb and wusb RHs */ + + wusb_dev_sysfs_rm(wusb_dev); + wusb_dev_bos_rm(wusb_dev); + wusb_dev_sec_rm(wusb_dev); + wusb_dev->usb_dev = NULL; + usb_dev->wusb_dev = NULL; + wusb_dev_put(wusb_dev); + usb_put_dev(usb_dev); +} + +/* + * Handle notifications from the USB stack (notifier call back) + * + * This is called when the USB stack does a + * usb_{bus,device}_{add,remove}() so we can do WUSB specific + * handling. It is called with [for the case of + * USB_DEVICE_{ADD,REMOVE} with the usb_dev locked. + */ +int wusb_usb_ncb(struct notifier_block *nb, unsigned long val, + void *priv) +{ + int result = NOTIFY_OK; + + switch (val) { + case USB_DEVICE_ADD: + wusb_dev_add_ncb(priv); + break; + case USB_DEVICE_REMOVE: + wusb_dev_rm_ncb(priv); + break; + case USB_BUS_ADD: + /* ignore (for now) */ + case USB_BUS_REMOVE: + break; + default: + WARN_ON(1); + result = NOTIFY_BAD; + }; + return result; +} + +/* + * Return a referenced wusb_dev given a @wusbhc and @usb_dev + */ +struct wusb_dev *__wusb_dev_get_by_usb_dev(struct wusbhc *wusbhc, + struct usb_device *usb_dev) +{ + struct wusb_dev *wusb_dev; + u8 port_idx; + + port_idx = wusb_port_no_to_idx(usb_dev->portnum); + BUG_ON(port_idx > wusbhc->ports_max); + wusb_dev = wusb_port_by_idx(wusbhc, port_idx)->wusb_dev; + if (wusb_dev != NULL) /* ops, device is gone */ + wusb_dev_get(wusb_dev); + return wusb_dev; +} +EXPORT_SYMBOL_GPL(__wusb_dev_get_by_usb_dev); + +void wusb_dev_destroy(struct kref *_wusb_dev) +{ + struct wusb_dev *wusb_dev + = container_of(_wusb_dev, struct wusb_dev, refcnt); + list_del_init(&wusb_dev->cack_node); + wusb_dev_free(wusb_dev); + d_fnend(1, NULL, "%s (wusb_dev %p) = void\n", __func__, wusb_dev); +} +EXPORT_SYMBOL_GPL(wusb_dev_destroy); + +/* + * Create all the device connect handling infrastructure + * + * This is basically the device info array, Connect Acknowledgement + * (cack) lists, keep-alive timers (and delayed work thread). + */ +int wusbhc_devconnect_create(struct wusbhc *wusbhc) +{ + d_fnstart(3, wusbhc->dev, "(wusbhc %p)\n", wusbhc); + + wusbhc->keep_alive_ie.hdr.bIEIdentifier = WUIE_ID_KEEP_ALIVE; + wusbhc->keep_alive_ie.hdr.bLength = sizeof(wusbhc->keep_alive_ie.hdr); + INIT_DELAYED_WORK(&wusbhc->keep_alive_timer, wusbhc_keep_alive_run); + + wusbhc->cack_ie.hdr.bIEIdentifier = WUIE_ID_CONNECTACK; + wusbhc->cack_ie.hdr.bLength = sizeof(wusbhc->cack_ie.hdr); + INIT_LIST_HEAD(&wusbhc->cack_list); + + d_fnend(3, wusbhc->dev, "(wusbhc %p) = void\n", wusbhc); + return 0; +} + +/* + * Release all resources taken by the devconnect stuff + */ +void wusbhc_devconnect_destroy(struct wusbhc *wusbhc) +{ + d_fnstart(3, wusbhc->dev, "(wusbhc %p)\n", wusbhc); + d_fnend(3, wusbhc->dev, "(wusbhc %p) = void\n", wusbhc); +} + +/* + * wusbhc_devconnect_start - start accepting device connections + * @wusbhc: the WUSB HC + * + * Sets the Host Info IE to accept all new connections. + * + * FIXME: This also enables the keep alives but this is not necessary + * until there are connected and authenticated devices. + */ +int wusbhc_devconnect_start(struct wusbhc *wusbhc, + const struct wusb_ckhdid *chid) +{ + struct device *dev = wusbhc->dev; + struct wuie_host_info *hi; + int result; + + hi = kzalloc(sizeof(*hi), GFP_KERNEL); + if (hi == NULL) + return -ENOMEM; + + hi->hdr.bLength = sizeof(*hi); + hi->hdr.bIEIdentifier = WUIE_ID_HOST_INFO; + hi->attributes = cpu_to_le16((wusbhc->rsv->stream << 3) | WUIE_HI_CAP_ALL); + hi->CHID = *chid; + result = wusbhc_mmcie_set(wusbhc, 0, 0, &hi->hdr); + if (result < 0) { + dev_err(dev, "Cannot add Host Info MMCIE: %d\n", result); + goto error_mmcie_set; + } + wusbhc->wuie_host_info = hi; + + queue_delayed_work(wusbd, &wusbhc->keep_alive_timer, + (wusbhc->trust_timeout*CONFIG_HZ)/1000/2); + + return 0; + +error_mmcie_set: + kfree(hi); + return result; +} + +/* + * wusbhc_devconnect_stop - stop managing connected devices + * @wusbhc: the WUSB HC + * + * Removes the Host Info IE and stops the keep alives. + * + * FIXME: should this disconnect all devices? + */ +void wusbhc_devconnect_stop(struct wusbhc *wusbhc) +{ + cancel_delayed_work_sync(&wusbhc->keep_alive_timer); + WARN_ON(!list_empty(&wusbhc->cack_list)); + + wusbhc_mmcie_rm(wusbhc, &wusbhc->wuie_host_info->hdr); + kfree(wusbhc->wuie_host_info); + wusbhc->wuie_host_info = NULL; +} + +/* + * wusb_set_dev_addr - set the WUSB device address used by the host + * @wusbhc: the WUSB HC the device is connect to + * @wusb_dev: the WUSB device + * @addr: new device address + */ +int wusb_set_dev_addr(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev, u8 addr) +{ + int result; + + wusb_dev->addr = addr; + result = wusbhc->dev_info_set(wusbhc, wusb_dev); + if (result < 0) + dev_err(wusbhc->dev, "device %d: failed to set device " + "address\n", wusb_dev->port_idx); + else + dev_info(wusbhc->dev, "device %d: %s addr %u\n", + wusb_dev->port_idx, + (addr & WUSB_DEV_ADDR_UNAUTH) ? "unauth" : "auth", + wusb_dev->addr); + + return result; +} diff --git a/drivers/usb/wusbcore/mmc.c b/drivers/usb/wusbcore/mmc.c new file mode 100644 index 000000000000..cfa77a01cebd --- /dev/null +++ b/drivers/usb/wusbcore/mmc.c @@ -0,0 +1,321 @@ +/* + * WUSB Wire Adapter: Control/Data Streaming Interface (WUSB[8]) + * MMC (Microscheduled Management Command) handling + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * WUIEs and MMC IEs...well, they are almost the same at the end. MMC + * IEs are Wireless USB IEs that go into the MMC period...[what is + * that? look in Design-overview.txt]. + * + * + * This is a simple subsystem to keep track of which IEs are being + * sent by the host in the MMC period. + * + * For each WUIE we ask to send, we keep it in an array, so we can + * request its removal later, or replace the content. They are tracked + * by pointer, so be sure to use the same pointer if you want to + * remove it or update the contents. + * + * FIXME: + * - add timers that autoremove intervalled IEs? + */ +#include <linux/usb/wusb.h> +#include "wusbhc.h" + +/* Initialize the MMCIEs handling mechanism */ +int wusbhc_mmcie_create(struct wusbhc *wusbhc) +{ + u8 mmcies = wusbhc->mmcies_max; + wusbhc->mmcie = kcalloc(mmcies, sizeof(wusbhc->mmcie[0]), GFP_KERNEL); + if (wusbhc->mmcie == NULL) + return -ENOMEM; + mutex_init(&wusbhc->mmcie_mutex); + return 0; +} + +/* Release resources used by the MMCIEs handling mechanism */ +void wusbhc_mmcie_destroy(struct wusbhc *wusbhc) +{ + kfree(wusbhc->mmcie); +} + +/* + * Add or replace an MMC Wireless USB IE. + * + * @interval: See WUSB1.0[8.5.3.1] + * @repeat_cnt: See WUSB1.0[8.5.3.1] + * @handle: See WUSB1.0[8.5.3.1] + * @wuie: Pointer to the header of the WUSB IE data to add. + * MUST BE allocated in a kmalloc buffer (no stack or + * vmalloc). + * THE CALLER ALWAYS OWNS THE POINTER (we don't free it + * on remove, we just forget about it). + * @returns: 0 if ok, < 0 errno code on error. + * + * Goes over the *whole* @wusbhc->mmcie array looking for (a) the + * first free spot and (b) if @wuie is already in the array (aka: + * transmitted in the MMCs) the spot were it is. + * + * If present, we "overwrite it" (update). + * + * + * NOTE: Need special ordering rules -- see below WUSB1.0 Table 7-38. + * The host uses the handle as the 'sort' index. We + * allocate the last one always for the WUIE_ID_HOST_INFO, and + * the rest, first come first serve in inverse order. + * + * Host software must make sure that it adds the other IEs in + * the right order... the host hardware is responsible for + * placing the WCTA IEs in the right place with the other IEs + * set by host software. + * + * NOTE: we can access wusbhc->wa_descr without locking because it is + * read only. + */ +int wusbhc_mmcie_set(struct wusbhc *wusbhc, u8 interval, u8 repeat_cnt, + struct wuie_hdr *wuie) +{ + int result = -ENOBUFS; + unsigned handle, itr; + + /* Search a handle, taking into account the ordering */ + mutex_lock(&wusbhc->mmcie_mutex); + switch (wuie->bIEIdentifier) { + case WUIE_ID_HOST_INFO: + /* Always last */ + handle = wusbhc->mmcies_max - 1; + break; + case WUIE_ID_ISOCH_DISCARD: + dev_err(wusbhc->dev, "Special ordering case for WUIE ID 0x%x " + "unimplemented\n", wuie->bIEIdentifier); + result = -ENOSYS; + goto error_unlock; + default: + /* search for it or find the last empty slot */ + handle = ~0; + for (itr = 0; itr < wusbhc->mmcies_max - 1; itr++) { + if (wusbhc->mmcie[itr] == wuie) { + handle = itr; + break; + } + if (wusbhc->mmcie[itr] == NULL) + handle = itr; + } + if (handle == ~0) + goto error_unlock; + } + result = (wusbhc->mmcie_add)(wusbhc, interval, repeat_cnt, handle, + wuie); + if (result >= 0) + wusbhc->mmcie[handle] = wuie; +error_unlock: + mutex_unlock(&wusbhc->mmcie_mutex); + return result; +} +EXPORT_SYMBOL_GPL(wusbhc_mmcie_set); + +/* + * Remove an MMC IE previously added with wusbhc_mmcie_set() + * + * @wuie Pointer used to add the WUIE + */ +void wusbhc_mmcie_rm(struct wusbhc *wusbhc, struct wuie_hdr *wuie) +{ + int result; + unsigned handle, itr; + + mutex_lock(&wusbhc->mmcie_mutex); + for (itr = 0; itr < wusbhc->mmcies_max; itr++) { + if (wusbhc->mmcie[itr] == wuie) { + handle = itr; + goto found; + } + } + mutex_unlock(&wusbhc->mmcie_mutex); + return; + +found: + result = (wusbhc->mmcie_rm)(wusbhc, handle); + if (result == 0) + wusbhc->mmcie[itr] = NULL; + mutex_unlock(&wusbhc->mmcie_mutex); +} +EXPORT_SYMBOL_GPL(wusbhc_mmcie_rm); + +/* + * wusbhc_start - start transmitting MMCs and accepting connections + * @wusbhc: the HC to start + * @chid: the CHID to use for this host + * + * Establishes a cluster reservation, enables device connections, and + * starts MMCs with appropriate DNTS parameters. + */ +int wusbhc_start(struct wusbhc *wusbhc, const struct wusb_ckhdid *chid) +{ + int result; + struct device *dev = wusbhc->dev; + + WARN_ON(wusbhc->wuie_host_info != NULL); + + result = wusbhc_rsv_establish(wusbhc); + if (result < 0) { + dev_err(dev, "cannot establish cluster reservation: %d\n", + result); + goto error_rsv_establish; + } + + result = wusbhc_devconnect_start(wusbhc, chid); + if (result < 0) { + dev_err(dev, "error enabling device connections: %d\n", result); + goto error_devconnect_start; + } + + result = wusbhc_sec_start(wusbhc); + if (result < 0) { + dev_err(dev, "error starting security in the HC: %d\n", result); + goto error_sec_start; + } + /* FIXME: the choice of the DNTS parameters is somewhat + * arbitrary */ + result = wusbhc->set_num_dnts(wusbhc, 0, 15); + if (result < 0) { + dev_err(dev, "Cannot set DNTS parameters: %d\n", result); + goto error_set_num_dnts; + } + result = wusbhc->start(wusbhc); + if (result < 0) { + dev_err(dev, "error starting wusbch: %d\n", result); + goto error_wusbhc_start; + } + wusbhc->active = 1; + return 0; + +error_wusbhc_start: + wusbhc_sec_stop(wusbhc); +error_set_num_dnts: +error_sec_start: + wusbhc_devconnect_stop(wusbhc); +error_devconnect_start: + wusbhc_rsv_terminate(wusbhc); +error_rsv_establish: + return result; +} + +/* + * Disconnect all from the WUSB Channel + * + * Send a Host Disconnect IE in the MMC, wait, don't send it any more + */ +static int __wusbhc_host_disconnect_ie(struct wusbhc *wusbhc) +{ + int result = -ENOMEM; + struct wuie_host_disconnect *host_disconnect_ie; + might_sleep(); + host_disconnect_ie = kmalloc(sizeof(*host_disconnect_ie), GFP_KERNEL); + if (host_disconnect_ie == NULL) + goto error_alloc; + host_disconnect_ie->hdr.bLength = sizeof(*host_disconnect_ie); + host_disconnect_ie->hdr.bIEIdentifier = WUIE_ID_HOST_DISCONNECT; + result = wusbhc_mmcie_set(wusbhc, 0, 0, &host_disconnect_ie->hdr); + if (result < 0) + goto error_mmcie_set; + + /* WUSB1.0[8.5.3.1 & 7.5.2] */ + msleep(100); + wusbhc_mmcie_rm(wusbhc, &host_disconnect_ie->hdr); +error_mmcie_set: + kfree(host_disconnect_ie); +error_alloc: + return result; +} + +/* + * wusbhc_stop - stop transmitting MMCs + * @wusbhc: the HC to stop + * + * Send a Host Disconnect IE, wait, remove all the MMCs (stop sending MMCs). + * + * If we can't allocate a Host Stop IE, screw it, we don't notify the + * devices we are disconnecting... + */ +void wusbhc_stop(struct wusbhc *wusbhc) +{ + if (wusbhc->active) { + wusbhc->active = 0; + wusbhc->stop(wusbhc); + wusbhc_sec_stop(wusbhc); + __wusbhc_host_disconnect_ie(wusbhc); + wusbhc_devconnect_stop(wusbhc); + wusbhc_rsv_terminate(wusbhc); + } +} +EXPORT_SYMBOL_GPL(wusbhc_stop); + +/* + * Change the CHID in a WUSB Channel + * + * If it is just a new CHID, send a Host Disconnect IE and then change + * the CHID IE. + */ +static int __wusbhc_chid_change(struct wusbhc *wusbhc, + const struct wusb_ckhdid *chid) +{ + int result = -ENOSYS; + struct device *dev = wusbhc->dev; + dev_err(dev, "%s() not implemented yet\n", __func__); + return result; + + BUG_ON(wusbhc->wuie_host_info == NULL); + __wusbhc_host_disconnect_ie(wusbhc); + wusbhc->wuie_host_info->CHID = *chid; + result = wusbhc_mmcie_set(wusbhc, 0, 0, &wusbhc->wuie_host_info->hdr); + if (result < 0) + dev_err(dev, "Can't update Host Info WUSB IE: %d\n", result); + return result; +} + +/* + * Set/reset/update a new CHID + * + * Depending on the previous state of the MMCs, start, stop or change + * the sent MMC. This effectively switches the host controller on and + * off (radio wise). + */ +int wusbhc_chid_set(struct wusbhc *wusbhc, const struct wusb_ckhdid *chid) +{ + int result = 0; + + if (memcmp(chid, &wusb_ckhdid_zero, sizeof(chid)) == 0) + chid = NULL; + + mutex_lock(&wusbhc->mutex); + if (wusbhc->active) { + if (chid) + result = __wusbhc_chid_change(wusbhc, chid); + else + wusbhc_stop(wusbhc); + } else { + if (chid) + wusbhc_start(wusbhc, chid); + } + mutex_unlock(&wusbhc->mutex); + return result; +} +EXPORT_SYMBOL_GPL(wusbhc_chid_set); diff --git a/drivers/usb/wusbcore/pal.c b/drivers/usb/wusbcore/pal.c new file mode 100644 index 000000000000..7cc51e9905cf --- /dev/null +++ b/drivers/usb/wusbcore/pal.c @@ -0,0 +1,42 @@ +/* + * Wireless USB Host Controller + * UWB Protocol Adaptation Layer (PAL) glue. + * + * Copyright (C) 2008 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include "wusbhc.h" + +/** + * wusbhc_pal_register - register the WUSB HC as a UWB PAL + * @wusbhc: the WUSB HC + */ +int wusbhc_pal_register(struct wusbhc *wusbhc) +{ + uwb_pal_init(&wusbhc->pal); + + wusbhc->pal.name = "wusbhc"; + wusbhc->pal.device = wusbhc->usb_hcd.self.controller; + + return uwb_pal_register(wusbhc->uwb_rc, &wusbhc->pal); +} + +/** + * wusbhc_pal_register - unregister the WUSB HC as a UWB PAL + * @wusbhc: the WUSB HC + */ +void wusbhc_pal_unregister(struct wusbhc *wusbhc) +{ + uwb_pal_unregister(wusbhc->uwb_rc, &wusbhc->pal); +} diff --git a/drivers/usb/wusbcore/reservation.c b/drivers/usb/wusbcore/reservation.c new file mode 100644 index 000000000000..fc63e77ded2d --- /dev/null +++ b/drivers/usb/wusbcore/reservation.c @@ -0,0 +1,115 @@ +/* + * WUSB cluster reservation management + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/kernel.h> +#include <linux/uwb.h> + +#include "wusbhc.h" + +/* + * WUSB cluster reservations are multicast reservations with the + * broadcast cluster ID (BCID) as the target DevAddr. + * + * FIXME: consider adjusting the reservation depending on what devices + * are attached. + */ + +static int wusbhc_bwa_set(struct wusbhc *wusbhc, u8 stream, + const struct uwb_mas_bm *mas) +{ + if (mas == NULL) + mas = &uwb_mas_bm_zero; + return wusbhc->bwa_set(wusbhc, stream, mas); +} + +/** + * wusbhc_rsv_complete_cb - WUSB HC reservation complete callback + * @rsv: the reservation + * + * Either set or clear the HC's view of the reservation. + * + * FIXME: when a reservation is denied the HC should be stopped. + */ +static void wusbhc_rsv_complete_cb(struct uwb_rsv *rsv) +{ + struct wusbhc *wusbhc = rsv->pal_priv; + struct device *dev = wusbhc->dev; + char buf[72]; + + switch (rsv->state) { + case UWB_RSV_STATE_O_ESTABLISHED: + bitmap_scnprintf(buf, sizeof(buf), rsv->mas.bm, UWB_NUM_MAS); + dev_dbg(dev, "established reservation: %s\n", buf); + wusbhc_bwa_set(wusbhc, rsv->stream, &rsv->mas); + break; + case UWB_RSV_STATE_NONE: + dev_dbg(dev, "removed reservation\n"); + wusbhc_bwa_set(wusbhc, 0, NULL); + wusbhc->rsv = NULL; + break; + default: + dev_dbg(dev, "unexpected reservation state: %d\n", rsv->state); + break; + } +} + + +/** + * wusbhc_rsv_establish - establish a reservation for the cluster + * @wusbhc: the WUSB HC requesting a bandwith reservation + */ +int wusbhc_rsv_establish(struct wusbhc *wusbhc) +{ + struct uwb_rc *rc = wusbhc->uwb_rc; + struct uwb_rsv *rsv; + struct uwb_dev_addr bcid; + int ret; + + rsv = uwb_rsv_create(rc, wusbhc_rsv_complete_cb, wusbhc); + if (rsv == NULL) + return -ENOMEM; + + bcid.data[0] = wusbhc->cluster_id; + bcid.data[1] = 0; + + rsv->owner = &rc->uwb_dev; + rsv->target.type = UWB_RSV_TARGET_DEVADDR; + rsv->target.devaddr = bcid; + rsv->type = UWB_DRP_TYPE_PRIVATE; + rsv->max_mas = 256; + rsv->min_mas = 16; /* one MAS per zone? */ + rsv->sparsity = 16; /* at least one MAS in each zone? */ + rsv->is_multicast = true; + + ret = uwb_rsv_establish(rsv); + if (ret == 0) + wusbhc->rsv = rsv; + else + uwb_rsv_destroy(rsv); + return ret; +} + + +/** + * wusbhc_rsv_terminate - terminate any cluster reservation + * @wusbhc: the WUSB host whose reservation is to be terminated + */ +void wusbhc_rsv_terminate(struct wusbhc *wusbhc) +{ + if (wusbhc->rsv) + uwb_rsv_terminate(wusbhc->rsv); +} diff --git a/drivers/usb/wusbcore/rh.c b/drivers/usb/wusbcore/rh.c new file mode 100644 index 000000000000..267a64325106 --- /dev/null +++ b/drivers/usb/wusbcore/rh.c @@ -0,0 +1,477 @@ +/* + * Wireless USB Host Controller + * Root Hub operations + * + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * We fake a root hub that has fake ports (as many as simultaneous + * devices the Wireless USB Host Controller can deal with). For each + * port we keep an state in @wusbhc->port[index] identical to the one + * specified in the USB2.0[ch11] spec and some extra device + * information that complements the one in 'struct usb_device' (as + * this lacs a hcpriv pointer). + * + * Note this is common to WHCI and HWA host controllers. + * + * Through here we enable most of the state changes that the USB stack + * will use to connect or disconnect devices. We need to do some + * forced adaptation of Wireless USB device states vs. wired: + * + * USB: WUSB: + * + * Port Powered-off port slot n/a + * Powered-on port slot available + * Disconnected port slot available + * Connected port slot assigned device + * device sent DN_Connect + * device was authenticated + * Enabled device is authenticated, transitioned + * from unauth -> auth -> default address + * -> enabled + * Reset disconnect + * Disable disconnect + * + * This maps the standard USB port states with the WUSB device states + * so we can fake ports without having to modify the USB stack. + * + * FIXME: this process will change in the future + * + * + * ENTRY POINTS + * + * Our entry points into here are, as in hcd.c, the USB stack root hub + * ops defined in the usb_hcd struct: + * + * wusbhc_rh_status_data() Provide hub and port status data bitmap + * + * wusbhc_rh_control() Execution of all the major requests + * you can do to a hub (Set|Clear + * features, get descriptors, status, etc). + * + * wusbhc_rh_[suspend|resume]() That + * + * wusbhc_rh_start_port_reset() ??? unimplemented + */ +#include "wusbhc.h" + +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + +/* + * Reset a fake port + * + * This can be called to reset a port from any other state or to reset + * it when connecting. In Wireless USB they are different; when doing + * a new connect that involves going over the authentication. When + * just reseting, its a different story. + * + * The Linux USB stack resets a port twice before it considers it + * enabled, so we have to detect and ignore that. + * + * @wusbhc is assumed referenced and @wusbhc->mutex unlocked. + * + * Supposedly we are the only thread accesing @wusbhc->port; in any + * case, maybe we should move the mutex locking from + * wusbhc_devconnect_auth() to here. + * + * @port_idx refers to the wusbhc's port index, not the USB port number + */ +static int wusbhc_rh_port_reset(struct wusbhc *wusbhc, u8 port_idx) +{ + int result = 0; + struct wusb_port *port = wusb_port_by_idx(wusbhc, port_idx); + + d_fnstart(3, wusbhc->dev, "(wusbhc %p port_idx %u)\n", + wusbhc, port_idx); + if (port->reset_count == 0) { + wusbhc_devconnect_auth(wusbhc, port_idx); + port->reset_count++; + } else if (port->reset_count == 1) + /* see header */ + d_printf(2, wusbhc->dev, "Ignoring second reset on port_idx " + "%u\n", port_idx); + else + result = wusbhc_dev_reset(wusbhc, port_idx); + d_fnend(3, wusbhc->dev, "(wusbhc %p port_idx %u) = %d\n", + wusbhc, port_idx, result); + return result; +} + +/* + * Return the hub change status bitmap + * + * The bits in the change status bitmap are cleared when a + * ClearPortFeature request is issued (USB2.0[11.12.3,11.12.4]. + * + * @wusbhc is assumed referenced and @wusbhc->mutex unlocked. + * + * WARNING!! This gets called from atomic context; we cannot get the + * mutex--the only race condition we can find is some bit + * changing just after we copy it, which shouldn't be too + * big of a problem [and we can't make it an spinlock + * because other parts need to take it and sleep] . + * + * @usb_hcd is refcounted, so it won't dissapear under us + * and before killing a host, the polling of the root hub + * would be stopped anyway. + */ +int wusbhc_rh_status_data(struct usb_hcd *usb_hcd, char *_buf) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + size_t cnt, size; + unsigned long *buf = (unsigned long *) _buf; + + d_fnstart(1, wusbhc->dev, "(wusbhc %p)\n", wusbhc); + /* WE DON'T LOCK, see comment */ + size = wusbhc->ports_max + 1 /* hub bit */; + size = (size + 8 - 1) / 8; /* round to bytes */ + for (cnt = 0; cnt < wusbhc->ports_max; cnt++) + if (wusb_port_by_idx(wusbhc, cnt)->change) + set_bit(cnt + 1, buf); + else + clear_bit(cnt + 1, buf); + d_fnend(1, wusbhc->dev, "(wusbhc %p) %u, buffer:\n", wusbhc, (int)size); + d_dump(1, wusbhc->dev, _buf, size); + return size; +} +EXPORT_SYMBOL_GPL(wusbhc_rh_status_data); + +/* + * Return the hub's desciptor + * + * NOTE: almost cut and paste from ehci-hub.c + * + * @wusbhc is assumed referenced and @wusbhc->mutex unlocked + */ +static int wusbhc_rh_get_hub_descr(struct wusbhc *wusbhc, u16 wValue, + u16 wIndex, + struct usb_hub_descriptor *descr, + u16 wLength) +{ + u16 temp = 1 + (wusbhc->ports_max / 8); + u8 length = 7 + 2 * temp; + + if (wLength < length) + return -ENOSPC; + descr->bDescLength = 7 + 2 * temp; + descr->bDescriptorType = 0x29; /* HUB type */ + descr->bNbrPorts = wusbhc->ports_max; + descr->wHubCharacteristics = cpu_to_le16( + 0x00 /* All ports power at once */ + | 0x00 /* not part of compound device */ + | 0x10 /* No overcurrent protection */ + | 0x00 /* 8 FS think time FIXME ?? */ + | 0x00); /* No port indicators */ + descr->bPwrOn2PwrGood = 0; + descr->bHubContrCurrent = 0; + /* two bitmaps: ports removable, and usb 1.0 legacy PortPwrCtrlMask */ + memset(&descr->bitmap[0], 0, temp); + memset(&descr->bitmap[temp], 0xff, temp); + return 0; +} + +/* + * Clear a hub feature + * + * @wusbhc is assumed referenced and @wusbhc->mutex unlocked. + * + * Nothing to do, so no locking needed ;) + */ +static int wusbhc_rh_clear_hub_feat(struct wusbhc *wusbhc, u16 feature) +{ + int result; + struct device *dev = wusbhc->dev; + + d_fnstart(4, dev, "(%p, feature 0x%04u)\n", wusbhc, feature); + switch (feature) { + case C_HUB_LOCAL_POWER: + /* FIXME: maybe plug bit 0 to the power input status, + * if any? + * see wusbhc_rh_get_hub_status() */ + case C_HUB_OVER_CURRENT: + result = 0; + break; + default: + result = -EPIPE; + } + d_fnend(4, dev, "(%p, feature 0x%04u), %d\n", wusbhc, feature, result); + return result; +} + +/* + * Return hub status (it is always zero...) + * + * @wusbhc is assumed referenced and @wusbhc->mutex unlocked. + * + * Nothing to do, so no locking needed ;) + */ +static int wusbhc_rh_get_hub_status(struct wusbhc *wusbhc, u32 *buf, + u16 wLength) +{ + /* FIXME: maybe plug bit 0 to the power input status (if any)? */ + *buf = 0; + return 0; +} + +/* + * Set a port feature + * + * @wusbhc is assumed referenced and @wusbhc->mutex unlocked. + */ +static int wusbhc_rh_set_port_feat(struct wusbhc *wusbhc, u16 feature, + u8 selector, u8 port_idx) +{ + int result = -EINVAL; + struct device *dev = wusbhc->dev; + + d_fnstart(4, dev, "(feat 0x%04u, selector 0x%u, port_idx %d)\n", + feature, selector, port_idx); + + if (port_idx > wusbhc->ports_max) + goto error; + + switch (feature) { + /* According to USB2.0[11.24.2.13]p2, these features + * are not required to be implemented. */ + case USB_PORT_FEAT_C_OVER_CURRENT: + case USB_PORT_FEAT_C_ENABLE: + case USB_PORT_FEAT_C_SUSPEND: + case USB_PORT_FEAT_C_CONNECTION: + case USB_PORT_FEAT_C_RESET: + result = 0; + break; + + case USB_PORT_FEAT_POWER: + /* No such thing, but we fake it works */ + mutex_lock(&wusbhc->mutex); + wusb_port_by_idx(wusbhc, port_idx)->status |= USB_PORT_STAT_POWER; + mutex_unlock(&wusbhc->mutex); + result = 0; + break; + case USB_PORT_FEAT_RESET: + result = wusbhc_rh_port_reset(wusbhc, port_idx); + break; + case USB_PORT_FEAT_ENABLE: + case USB_PORT_FEAT_SUSPEND: + dev_err(dev, "(port_idx %d) set feat %d/%d UNIMPLEMENTED\n", + port_idx, feature, selector); + result = -ENOSYS; + break; + default: + dev_err(dev, "(port_idx %d) set feat %d/%d UNKNOWN\n", + port_idx, feature, selector); + result = -EPIPE; + break; + } +error: + d_fnend(4, dev, "(feat 0x%04u, selector 0x%u, port_idx %d) = %d\n", + feature, selector, port_idx, result); + return result; +} + +/* + * Clear a port feature... + * + * @wusbhc is assumed referenced and @wusbhc->mutex unlocked. + */ +static int wusbhc_rh_clear_port_feat(struct wusbhc *wusbhc, u16 feature, + u8 selector, u8 port_idx) +{ + int result = -EINVAL; + struct device *dev = wusbhc->dev; + + d_fnstart(4, dev, "(wusbhc %p feat 0x%04x selector %d port_idx %d)\n", + wusbhc, feature, selector, port_idx); + + if (port_idx > wusbhc->ports_max) + goto error; + + mutex_lock(&wusbhc->mutex); + result = 0; + switch (feature) { + case USB_PORT_FEAT_POWER: /* fake port always on */ + /* According to USB2.0[11.24.2.7.1.4], no need to implement? */ + case USB_PORT_FEAT_C_OVER_CURRENT: + break; + case USB_PORT_FEAT_C_RESET: + wusb_port_by_idx(wusbhc, port_idx)->change &= ~USB_PORT_STAT_C_RESET; + break; + case USB_PORT_FEAT_C_CONNECTION: + wusb_port_by_idx(wusbhc, port_idx)->change &= ~USB_PORT_STAT_C_CONNECTION; + break; + case USB_PORT_FEAT_ENABLE: + __wusbhc_dev_disable(wusbhc, port_idx); + break; + case USB_PORT_FEAT_C_ENABLE: + wusb_port_by_idx(wusbhc, port_idx)->change &= ~USB_PORT_STAT_C_ENABLE; + break; + case USB_PORT_FEAT_SUSPEND: + case USB_PORT_FEAT_C_SUSPEND: + case 0xffff: /* ??? FIXME */ + dev_err(dev, "(port_idx %d) Clear feat %d/%d UNIMPLEMENTED\n", + port_idx, feature, selector); + /* dump_stack(); */ + result = -ENOSYS; + break; + default: + dev_err(dev, "(port_idx %d) Clear feat %d/%d UNKNOWN\n", + port_idx, feature, selector); + result = -EPIPE; + break; + } + mutex_unlock(&wusbhc->mutex); +error: + d_fnend(4, dev, "(wusbhc %p feat 0x%04x selector %d port_idx %d) = " + "%d\n", wusbhc, feature, selector, port_idx, result); + return result; +} + +/* + * Return the port's status + * + * @wusbhc is assumed referenced and @wusbhc->mutex unlocked. + */ +static int wusbhc_rh_get_port_status(struct wusbhc *wusbhc, u16 port_idx, + u32 *_buf, u16 wLength) +{ + int result = -EINVAL; + u16 *buf = (u16 *) _buf; + + d_fnstart(1, wusbhc->dev, "(wusbhc %p port_idx %u wLength %u)\n", + wusbhc, port_idx, wLength); + if (port_idx > wusbhc->ports_max) + goto error; + mutex_lock(&wusbhc->mutex); + buf[0] = cpu_to_le16(wusb_port_by_idx(wusbhc, port_idx)->status); + buf[1] = cpu_to_le16(wusb_port_by_idx(wusbhc, port_idx)->change); + result = 0; + mutex_unlock(&wusbhc->mutex); +error: + d_fnend(1, wusbhc->dev, "(wusbhc %p) = %d, buffer:\n", wusbhc, result); + d_dump(1, wusbhc->dev, _buf, wLength); + return result; +} + +/* + * Entry point for Root Hub operations + * + * @wusbhc is assumed referenced and @wusbhc->mutex unlocked. + */ +int wusbhc_rh_control(struct usb_hcd *usb_hcd, u16 reqntype, u16 wValue, + u16 wIndex, char *buf, u16 wLength) +{ + int result = -ENOSYS; + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + + switch (reqntype) { + case GetHubDescriptor: + result = wusbhc_rh_get_hub_descr( + wusbhc, wValue, wIndex, + (struct usb_hub_descriptor *) buf, wLength); + break; + case ClearHubFeature: + result = wusbhc_rh_clear_hub_feat(wusbhc, wValue); + break; + case GetHubStatus: + result = wusbhc_rh_get_hub_status(wusbhc, (u32 *)buf, wLength); + break; + + case SetPortFeature: + result = wusbhc_rh_set_port_feat(wusbhc, wValue, wIndex >> 8, + (wIndex & 0xff) - 1); + break; + case ClearPortFeature: + result = wusbhc_rh_clear_port_feat(wusbhc, wValue, wIndex >> 8, + (wIndex & 0xff) - 1); + break; + case GetPortStatus: + result = wusbhc_rh_get_port_status(wusbhc, wIndex - 1, + (u32 *)buf, wLength); + break; + + case SetHubFeature: + default: + dev_err(wusbhc->dev, "%s (%p [%p], %x, %x, %x, %p, %x) " + "UNIMPLEMENTED\n", __func__, usb_hcd, wusbhc, reqntype, + wValue, wIndex, buf, wLength); + /* dump_stack(); */ + result = -ENOSYS; + } + return result; +} +EXPORT_SYMBOL_GPL(wusbhc_rh_control); + +int wusbhc_rh_suspend(struct usb_hcd *usb_hcd) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + dev_err(wusbhc->dev, "%s (%p [%p]) UNIMPLEMENTED\n", __func__, + usb_hcd, wusbhc); + /* dump_stack(); */ + return -ENOSYS; +} +EXPORT_SYMBOL_GPL(wusbhc_rh_suspend); + +int wusbhc_rh_resume(struct usb_hcd *usb_hcd) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + dev_err(wusbhc->dev, "%s (%p [%p]) UNIMPLEMENTED\n", __func__, + usb_hcd, wusbhc); + /* dump_stack(); */ + return -ENOSYS; +} +EXPORT_SYMBOL_GPL(wusbhc_rh_resume); + +int wusbhc_rh_start_port_reset(struct usb_hcd *usb_hcd, unsigned port_idx) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + dev_err(wusbhc->dev, "%s (%p [%p], port_idx %u) UNIMPLEMENTED\n", + __func__, usb_hcd, wusbhc, port_idx); + WARN_ON(1); + return -ENOSYS; +} +EXPORT_SYMBOL_GPL(wusbhc_rh_start_port_reset); + +static void wusb_port_init(struct wusb_port *port) +{ + port->status |= USB_PORT_STAT_HIGH_SPEED; +} + +/* + * Alloc fake port specific fields and status. + */ +int wusbhc_rh_create(struct wusbhc *wusbhc) +{ + int result = -ENOMEM; + size_t port_size, itr; + port_size = wusbhc->ports_max * sizeof(wusbhc->port[0]); + wusbhc->port = kzalloc(port_size, GFP_KERNEL); + if (wusbhc->port == NULL) + goto error_port_alloc; + for (itr = 0; itr < wusbhc->ports_max; itr++) + wusb_port_init(&wusbhc->port[itr]); + result = 0; +error_port_alloc: + return result; +} + +void wusbhc_rh_destroy(struct wusbhc *wusbhc) +{ + kfree(wusbhc->port); +} diff --git a/drivers/usb/wusbcore/security.c b/drivers/usb/wusbcore/security.c new file mode 100644 index 000000000000..a101cad6a8d4 --- /dev/null +++ b/drivers/usb/wusbcore/security.c @@ -0,0 +1,642 @@ +/* + * Wireless USB Host Controller + * Security support: encryption enablement, etc + * + * Copyright (C) 2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + */ +#include <linux/types.h> +#include <linux/usb/ch9.h> +#include <linux/random.h> +#include "wusbhc.h" + +/* + * DEBUG & SECURITY WARNING!!!! + * + * If you enable this past 1, the debug code will weaken the + * cryptographic safety of the system (on purpose, for debugging). + * + * Weaken means: + * we print secret keys and intermediate values all the way, + */ +#undef D_LOCAL +#define D_LOCAL 2 +#include <linux/uwb/debug.h> + +static void wusbhc_set_gtk_callback(struct urb *urb); +static void wusbhc_gtk_rekey_done_work(struct work_struct *work); + +int wusbhc_sec_create(struct wusbhc *wusbhc) +{ + wusbhc->gtk.descr.bLength = sizeof(wusbhc->gtk.descr) + sizeof(wusbhc->gtk.data); + wusbhc->gtk.descr.bDescriptorType = USB_DT_KEY; + wusbhc->gtk.descr.bReserved = 0; + + wusbhc->gtk_index = wusb_key_index(0, WUSB_KEY_INDEX_TYPE_GTK, + WUSB_KEY_INDEX_ORIGINATOR_HOST); + + INIT_WORK(&wusbhc->gtk_rekey_done_work, wusbhc_gtk_rekey_done_work); + + return 0; +} + + +/* Called when the HC is destroyed */ +void wusbhc_sec_destroy(struct wusbhc *wusbhc) +{ +} + + +/** + * wusbhc_next_tkid - generate a new, currently unused, TKID + * @wusbhc: the WUSB host controller + * @wusb_dev: the device whose PTK the TKID is for + * (or NULL for a TKID for a GTK) + * + * The generated TKID consist of two parts: the device's authenicated + * address (or 0 or a GTK); and an incrementing number. This ensures + * that TKIDs cannot be shared between devices and by the time the + * incrementing number wraps around the older TKIDs will no longer be + * in use (a maximum of two keys may be active at any one time). + */ +static u32 wusbhc_next_tkid(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev) +{ + u32 *tkid; + u32 addr; + + if (wusb_dev == NULL) { + tkid = &wusbhc->gtk_tkid; + addr = 0; + } else { + tkid = &wusb_port_by_idx(wusbhc, wusb_dev->port_idx)->ptk_tkid; + addr = wusb_dev->addr & 0x7f; + } + + *tkid = (addr << 8) | ((*tkid + 1) & 0xff); + + return *tkid; +} + +static void wusbhc_generate_gtk(struct wusbhc *wusbhc) +{ + const size_t key_size = sizeof(wusbhc->gtk.data); + u32 tkid; + + tkid = wusbhc_next_tkid(wusbhc, NULL); + + wusbhc->gtk.descr.tTKID[0] = (tkid >> 0) & 0xff; + wusbhc->gtk.descr.tTKID[1] = (tkid >> 8) & 0xff; + wusbhc->gtk.descr.tTKID[2] = (tkid >> 16) & 0xff; + + get_random_bytes(wusbhc->gtk.descr.bKeyData, key_size); +} + +/** + * wusbhc_sec_start - start the security management process + * @wusbhc: the WUSB host controller + * + * Generate and set an initial GTK on the host controller. + * + * Called when the HC is started. + */ +int wusbhc_sec_start(struct wusbhc *wusbhc) +{ + const size_t key_size = sizeof(wusbhc->gtk.data); + int result; + + wusbhc_generate_gtk(wusbhc); + + result = wusbhc->set_gtk(wusbhc, wusbhc->gtk_tkid, + &wusbhc->gtk.descr.bKeyData, key_size); + if (result < 0) + dev_err(wusbhc->dev, "cannot set GTK for the host: %d\n", + result); + + return result; +} + +/** + * wusbhc_sec_stop - stop the security management process + * @wusbhc: the WUSB host controller + * + * Wait for any pending GTK rekeys to stop. + */ +void wusbhc_sec_stop(struct wusbhc *wusbhc) +{ + cancel_work_sync(&wusbhc->gtk_rekey_done_work); +} + + +/** @returns encryption type name */ +const char *wusb_et_name(u8 x) +{ + switch (x) { + case USB_ENC_TYPE_UNSECURE: return "unsecure"; + case USB_ENC_TYPE_WIRED: return "wired"; + case USB_ENC_TYPE_CCM_1: return "CCM-1"; + case USB_ENC_TYPE_RSA_1: return "RSA-1"; + default: return "unknown"; + } +} +EXPORT_SYMBOL_GPL(wusb_et_name); + +/* + * Set the device encryption method + * + * We tell the device which encryption method to use; we do this when + * setting up the device's security. + */ +static int wusb_dev_set_encryption(struct usb_device *usb_dev, int value) +{ + int result; + struct device *dev = &usb_dev->dev; + struct wusb_dev *wusb_dev = usb_dev->wusb_dev; + + if (value) { + value = wusb_dev->ccm1_etd.bEncryptionValue; + } else { + /* FIXME: should be wusb_dev->etd[UNSECURE].bEncryptionValue */ + value = 0; + } + /* Set device's */ + result = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), + USB_REQ_SET_ENCRYPTION, + USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE, + value, 0, NULL, 0, 1000 /* FIXME: arbitrary */); + if (result < 0) + dev_err(dev, "Can't set device's WUSB encryption to " + "%s (value %d): %d\n", + wusb_et_name(wusb_dev->ccm1_etd.bEncryptionType), + wusb_dev->ccm1_etd.bEncryptionValue, result); + return result; +} + +/* + * Set the GTK to be used by a device. + * + * The device must be authenticated. + */ +static int wusb_dev_set_gtk(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev) +{ + struct usb_device *usb_dev = wusb_dev->usb_dev; + + return usb_control_msg( + usb_dev, usb_sndctrlpipe(usb_dev, 0), + USB_REQ_SET_DESCRIPTOR, + USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE, + USB_DT_KEY << 8 | wusbhc->gtk_index, 0, + &wusbhc->gtk.descr, wusbhc->gtk.descr.bLength, + 1000); +} + + +/* FIXME: prototype for adding security */ +int wusb_dev_sec_add(struct wusbhc *wusbhc, + struct usb_device *usb_dev, struct wusb_dev *wusb_dev) +{ + int result, bytes, secd_size; + struct device *dev = &usb_dev->dev; + struct usb_security_descriptor secd; + const struct usb_encryption_descriptor *etd, *ccm1_etd = NULL; + void *secd_buf; + const void *itr, *top; + char buf[64]; + + d_fnstart(3, dev, "(usb_dev %p, wusb_dev %p)\n", usb_dev, wusb_dev); + result = usb_get_descriptor(usb_dev, USB_DT_SECURITY, + 0, &secd, sizeof(secd)); + if (result < sizeof(secd)) { + dev_err(dev, "Can't read security descriptor or " + "not enough data: %d\n", result); + goto error_secd; + } + secd_size = le16_to_cpu(secd.wTotalLength); + d_printf(5, dev, "got %d bytes of sec descriptor, total is %d\n", + result, secd_size); + secd_buf = kmalloc(secd_size, GFP_KERNEL); + if (secd_buf == NULL) { + dev_err(dev, "Can't allocate space for security descriptors\n"); + goto error_secd_alloc; + } + result = usb_get_descriptor(usb_dev, USB_DT_SECURITY, + 0, secd_buf, secd_size); + if (result < secd_size) { + dev_err(dev, "Can't read security descriptor or " + "not enough data: %d\n", result); + goto error_secd_all; + } + d_printf(5, dev, "got %d bytes of sec descriptors\n", result); + bytes = 0; + itr = secd_buf + sizeof(secd); + top = secd_buf + result; + while (itr < top) { + etd = itr; + if (top - itr < sizeof(*etd)) { + dev_err(dev, "BUG: bad device security descriptor; " + "not enough data (%zu vs %zu bytes left)\n", + top - itr, sizeof(*etd)); + break; + } + if (etd->bLength < sizeof(*etd)) { + dev_err(dev, "BUG: bad device encryption descriptor; " + "descriptor is too short " + "(%u vs %zu needed)\n", + etd->bLength, sizeof(*etd)); + break; + } + itr += etd->bLength; + bytes += snprintf(buf + bytes, sizeof(buf) - bytes, + "%s (0x%02x/%02x) ", + wusb_et_name(etd->bEncryptionType), + etd->bEncryptionValue, etd->bAuthKeyIndex); + if (etd->bEncryptionType == USB_ENC_TYPE_CCM_1) + ccm1_etd = etd; + } + /* This code only supports CCM1 as of now. */ + /* FIXME: user has to choose which sec mode to use? + * In theory we want CCM */ + if (ccm1_etd == NULL) { + dev_err(dev, "WUSB device doesn't support CCM1 encryption, " + "can't use!\n"); + result = -EINVAL; + goto error_no_ccm1; + } + wusb_dev->ccm1_etd = *ccm1_etd; + dev_info(dev, "supported encryption: %s; using %s (0x%02x/%02x)\n", + buf, wusb_et_name(ccm1_etd->bEncryptionType), + ccm1_etd->bEncryptionValue, ccm1_etd->bAuthKeyIndex); + result = 0; + kfree(secd_buf); +out: + d_fnend(3, dev, "(usb_dev %p, wusb_dev %p) = %d\n", + usb_dev, wusb_dev, result); + return result; + + +error_no_ccm1: +error_secd_all: + kfree(secd_buf); +error_secd_alloc: +error_secd: + goto out; +} + +void wusb_dev_sec_rm(struct wusb_dev *wusb_dev) +{ + /* Nothing so far */ +} + +static void hs_printk(unsigned level, struct device *dev, + struct usb_handshake *hs) +{ + d_printf(level, dev, + " bMessageNumber: %u\n" + " bStatus: %u\n" + " tTKID: %02x %02x %02x\n" + " CDID: %02x %02x %02x %02x %02x %02x %02x %02x\n" + " %02x %02x %02x %02x %02x %02x %02x %02x\n" + " nonce: %02x %02x %02x %02x %02x %02x %02x %02x\n" + " %02x %02x %02x %02x %02x %02x %02x %02x\n" + " MIC: %02x %02x %02x %02x %02x %02x %02x %02x\n", + hs->bMessageNumber, hs->bStatus, + hs->tTKID[2], hs->tTKID[1], hs->tTKID[0], + hs->CDID[0], hs->CDID[1], hs->CDID[2], hs->CDID[3], + hs->CDID[4], hs->CDID[5], hs->CDID[6], hs->CDID[7], + hs->CDID[8], hs->CDID[9], hs->CDID[10], hs->CDID[11], + hs->CDID[12], hs->CDID[13], hs->CDID[14], hs->CDID[15], + hs->nonce[0], hs->nonce[1], hs->nonce[2], hs->nonce[3], + hs->nonce[4], hs->nonce[5], hs->nonce[6], hs->nonce[7], + hs->nonce[8], hs->nonce[9], hs->nonce[10], hs->nonce[11], + hs->nonce[12], hs->nonce[13], hs->nonce[14], hs->nonce[15], + hs->MIC[0], hs->MIC[1], hs->MIC[2], hs->MIC[3], + hs->MIC[4], hs->MIC[5], hs->MIC[6], hs->MIC[7]); +} + +/** + * Update the address of an unauthenticated WUSB device + * + * Once we have successfully authenticated, we take it to addr0 state + * and then to a normal address. + * + * Before the device's address (as known by it) was usb_dev->devnum | + * 0x80 (unauthenticated address). With this we update it to usb_dev->devnum. + */ +static int wusb_dev_update_address(struct wusbhc *wusbhc, + struct wusb_dev *wusb_dev) +{ + int result = -ENOMEM; + struct usb_device *usb_dev = wusb_dev->usb_dev; + struct device *dev = &usb_dev->dev; + u8 new_address = wusb_dev->addr & 0x7F; + + /* Set address 0 */ + result = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), + USB_REQ_SET_ADDRESS, 0, + 0, 0, NULL, 0, 1000 /* FIXME: arbitrary */); + if (result < 0) { + dev_err(dev, "auth failed: can't set address 0: %d\n", + result); + goto error_addr0; + } + result = wusb_set_dev_addr(wusbhc, wusb_dev, 0); + if (result < 0) + goto error_addr0; + usb_ep0_reinit(usb_dev); + + /* Set new (authenticated) address. */ + result = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), + USB_REQ_SET_ADDRESS, 0, + new_address, 0, NULL, 0, + 1000 /* FIXME: arbitrary */); + if (result < 0) { + dev_err(dev, "auth failed: can't set address %u: %d\n", + new_address, result); + goto error_addr; + } + result = wusb_set_dev_addr(wusbhc, wusb_dev, new_address); + if (result < 0) + goto error_addr; + usb_ep0_reinit(usb_dev); + usb_dev->authenticated = 1; +error_addr: +error_addr0: + return result; +} + +/* + * + * + */ +/* FIXME: split and cleanup */ +int wusb_dev_4way_handshake(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev, + struct wusb_ckhdid *ck) +{ + int result = -ENOMEM; + struct usb_device *usb_dev = wusb_dev->usb_dev; + struct device *dev = &usb_dev->dev; + u32 tkid; + __le32 tkid_le; + struct usb_handshake *hs; + struct aes_ccm_nonce ccm_n; + u8 mic[8]; + struct wusb_keydvt_in keydvt_in; + struct wusb_keydvt_out keydvt_out; + + hs = kzalloc(3*sizeof(hs[0]), GFP_KERNEL); + if (hs == NULL) { + dev_err(dev, "can't allocate handshake data\n"); + goto error_kzalloc; + } + + /* We need to turn encryption before beginning the 4way + * hshake (WUSB1.0[.3.2.2]) */ + result = wusb_dev_set_encryption(usb_dev, 1); + if (result < 0) + goto error_dev_set_encryption; + + tkid = wusbhc_next_tkid(wusbhc, wusb_dev); + tkid_le = cpu_to_le32(tkid); + + hs[0].bMessageNumber = 1; + hs[0].bStatus = 0; + memcpy(hs[0].tTKID, &tkid_le, sizeof(hs[0].tTKID)); + hs[0].bReserved = 0; + memcpy(hs[0].CDID, &wusb_dev->cdid, sizeof(hs[0].CDID)); + get_random_bytes(&hs[0].nonce, sizeof(hs[0].nonce)); + memset(hs[0].MIC, 0, sizeof(hs[0].MIC)); /* Per WUSB1.0[T7-22] */ + + d_printf(1, dev, "I: sending hs1:\n"); + hs_printk(2, dev, &hs[0]); + + result = usb_control_msg( + usb_dev, usb_sndctrlpipe(usb_dev, 0), + USB_REQ_SET_HANDSHAKE, + USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE, + 1, 0, &hs[0], sizeof(hs[0]), 1000 /* FIXME: arbitrary */); + if (result < 0) { + dev_err(dev, "Handshake1: request failed: %d\n", result); + goto error_hs1; + } + + /* Handshake 2, from the device -- need to verify fields */ + result = usb_control_msg( + usb_dev, usb_rcvctrlpipe(usb_dev, 0), + USB_REQ_GET_HANDSHAKE, + USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_DEVICE, + 2, 0, &hs[1], sizeof(hs[1]), 1000 /* FIXME: arbitrary */); + if (result < 0) { + dev_err(dev, "Handshake2: request failed: %d\n", result); + goto error_hs2; + } + d_printf(1, dev, "got HS2:\n"); + hs_printk(2, dev, &hs[1]); + + result = -EINVAL; + if (hs[1].bMessageNumber != 2) { + dev_err(dev, "Handshake2 failed: bad message number %u\n", + hs[1].bMessageNumber); + goto error_hs2; + } + if (hs[1].bStatus != 0) { + dev_err(dev, "Handshake2 failed: bad status %u\n", + hs[1].bStatus); + goto error_hs2; + } + if (memcmp(hs[0].tTKID, hs[1].tTKID, sizeof(hs[0].tTKID))) { + dev_err(dev, "Handshake2 failed: TKID mismatch " + "(#1 0x%02x%02x%02x vs #2 0x%02x%02x%02x)\n", + hs[0].tTKID[0], hs[0].tTKID[1], hs[0].tTKID[2], + hs[1].tTKID[0], hs[1].tTKID[1], hs[1].tTKID[2]); + goto error_hs2; + } + if (memcmp(hs[0].CDID, hs[1].CDID, sizeof(hs[0].CDID))) { + dev_err(dev, "Handshake2 failed: CDID mismatch\n"); + goto error_hs2; + } + + /* Setup the CCM nonce */ + memset(&ccm_n.sfn, 0, sizeof(ccm_n.sfn)); /* Per WUSB1.0[6.5.2] */ + memcpy(ccm_n.tkid, &tkid_le, sizeof(ccm_n.tkid)); + ccm_n.src_addr = wusbhc->uwb_rc->uwb_dev.dev_addr; + ccm_n.dest_addr.data[0] = wusb_dev->addr; + ccm_n.dest_addr.data[1] = 0; + + /* Derive the KCK and PTK from CK, the CCM, H and D nonces */ + memcpy(keydvt_in.hnonce, hs[0].nonce, sizeof(keydvt_in.hnonce)); + memcpy(keydvt_in.dnonce, hs[1].nonce, sizeof(keydvt_in.dnonce)); + result = wusb_key_derive(&keydvt_out, ck->data, &ccm_n, &keydvt_in); + if (result < 0) { + dev_err(dev, "Handshake2 failed: cannot derive keys: %d\n", + result); + goto error_hs2; + } + d_printf(2, dev, "KCK:\n"); + d_dump(2, dev, keydvt_out.kck, sizeof(keydvt_out.kck)); + d_printf(2, dev, "PTK:\n"); + d_dump(2, dev, keydvt_out.ptk, sizeof(keydvt_out.ptk)); + + /* Compute MIC and verify it */ + result = wusb_oob_mic(mic, keydvt_out.kck, &ccm_n, &hs[1]); + if (result < 0) { + dev_err(dev, "Handshake2 failed: cannot compute MIC: %d\n", + result); + goto error_hs2; + } + + d_printf(2, dev, "MIC:\n"); + d_dump(2, dev, mic, sizeof(mic)); + if (memcmp(hs[1].MIC, mic, sizeof(hs[1].MIC))) { + dev_err(dev, "Handshake2 failed: MIC mismatch\n"); + goto error_hs2; + } + + /* Send Handshake3 */ + hs[2].bMessageNumber = 3; + hs[2].bStatus = 0; + memcpy(hs[2].tTKID, &tkid_le, sizeof(hs[2].tTKID)); + hs[2].bReserved = 0; + memcpy(hs[2].CDID, &wusb_dev->cdid, sizeof(hs[2].CDID)); + memcpy(hs[2].nonce, hs[0].nonce, sizeof(hs[2].nonce)); + result = wusb_oob_mic(hs[2].MIC, keydvt_out.kck, &ccm_n, &hs[2]); + if (result < 0) { + dev_err(dev, "Handshake3 failed: cannot compute MIC: %d\n", + result); + goto error_hs2; + } + + d_printf(1, dev, "I: sending hs3:\n"); + hs_printk(2, dev, &hs[2]); + + result = usb_control_msg( + usb_dev, usb_sndctrlpipe(usb_dev, 0), + USB_REQ_SET_HANDSHAKE, + USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE, + 3, 0, &hs[2], sizeof(hs[2]), 1000 /* FIXME: arbitrary */); + if (result < 0) { + dev_err(dev, "Handshake3: request failed: %d\n", result); + goto error_hs3; + } + + d_printf(1, dev, "I: turning on encryption on host for device\n"); + d_dump(2, dev, keydvt_out.ptk, sizeof(keydvt_out.ptk)); + result = wusbhc->set_ptk(wusbhc, wusb_dev->port_idx, tkid, + keydvt_out.ptk, sizeof(keydvt_out.ptk)); + if (result < 0) + goto error_wusbhc_set_ptk; + + d_printf(1, dev, "I: setting a GTK\n"); + result = wusb_dev_set_gtk(wusbhc, wusb_dev); + if (result < 0) { + dev_err(dev, "Set GTK for device: request failed: %d\n", + result); + goto error_wusbhc_set_gtk; + } + + /* Update the device's address from unauth to auth */ + if (usb_dev->authenticated == 0) { + d_printf(1, dev, "I: updating addres to auth from non-auth\n"); + result = wusb_dev_update_address(wusbhc, wusb_dev); + if (result < 0) + goto error_dev_update_address; + } + result = 0; + d_printf(1, dev, "I: 4way handshke done, device authenticated\n"); + +error_dev_update_address: +error_wusbhc_set_gtk: +error_wusbhc_set_ptk: +error_hs3: +error_hs2: +error_hs1: + memset(hs, 0, 3*sizeof(hs[0])); + memset(&keydvt_out, 0, sizeof(keydvt_out)); + memset(&keydvt_in, 0, sizeof(keydvt_in)); + memset(&ccm_n, 0, sizeof(ccm_n)); + memset(mic, 0, sizeof(mic)); + if (result < 0) { + /* error path */ + wusb_dev_set_encryption(usb_dev, 0); + } +error_dev_set_encryption: + kfree(hs); +error_kzalloc: + return result; +} + +/* + * Once all connected and authenticated devices have received the new + * GTK, switch the host to using it. + */ +static void wusbhc_gtk_rekey_done_work(struct work_struct *work) +{ + struct wusbhc *wusbhc = container_of(work, struct wusbhc, gtk_rekey_done_work); + size_t key_size = sizeof(wusbhc->gtk.data); + + mutex_lock(&wusbhc->mutex); + + if (--wusbhc->pending_set_gtks == 0) + wusbhc->set_gtk(wusbhc, wusbhc->gtk_tkid, &wusbhc->gtk.descr.bKeyData, key_size); + + mutex_unlock(&wusbhc->mutex); +} + +static void wusbhc_set_gtk_callback(struct urb *urb) +{ + struct wusbhc *wusbhc = urb->context; + + queue_work(wusbd, &wusbhc->gtk_rekey_done_work); +} + +/** + * wusbhc_gtk_rekey - generate and distribute a new GTK + * @wusbhc: the WUSB host controller + * + * Generate a new GTK and distribute it to all connected and + * authenticated devices. When all devices have the new GTK, the host + * starts using it. + * + * This must be called after every device disconnect (see [WUSB] + * section 6.2.11.2). + */ +void wusbhc_gtk_rekey(struct wusbhc *wusbhc) +{ + static const size_t key_size = sizeof(wusbhc->gtk.data); + int p; + + wusbhc_generate_gtk(wusbhc); + + for (p = 0; p < wusbhc->ports_max; p++) { + struct wusb_dev *wusb_dev; + + wusb_dev = wusbhc->port[p].wusb_dev; + if (!wusb_dev || !wusb_dev->usb_dev | !wusb_dev->usb_dev->authenticated) + continue; + + usb_fill_control_urb(wusb_dev->set_gtk_urb, wusb_dev->usb_dev, + usb_sndctrlpipe(wusb_dev->usb_dev, 0), + (void *)wusb_dev->set_gtk_req, + &wusbhc->gtk.descr, wusbhc->gtk.descr.bLength, + wusbhc_set_gtk_callback, wusbhc); + if (usb_submit_urb(wusb_dev->set_gtk_urb, GFP_KERNEL) == 0) + wusbhc->pending_set_gtks++; + } + if (wusbhc->pending_set_gtks == 0) + wusbhc->set_gtk(wusbhc, wusbhc->gtk_tkid, &wusbhc->gtk.descr.bKeyData, key_size); +} diff --git a/drivers/usb/wusbcore/wa-hc.c b/drivers/usb/wusbcore/wa-hc.c new file mode 100644 index 000000000000..9d04722415bb --- /dev/null +++ b/drivers/usb/wusbcore/wa-hc.c @@ -0,0 +1,95 @@ +/* + * Wire Adapter Host Controller Driver + * Common items to HWA and DWA based HCDs + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + */ +#include "wusbhc.h" +#include "wa-hc.h" + +/** + * Assumes + * + * wa->usb_dev and wa->usb_iface initialized and refcounted, + * wa->wa_descr initialized. + */ +int wa_create(struct wahc *wa, struct usb_interface *iface) +{ + int result; + struct device *dev = &iface->dev; + + result = wa_rpipes_create(wa); + if (result < 0) + goto error_rpipes_create; + /* Fill up Data Transfer EP pointers */ + wa->dti_epd = &iface->cur_altsetting->endpoint[1].desc; + wa->dto_epd = &iface->cur_altsetting->endpoint[2].desc; + wa->xfer_result_size = le16_to_cpu(wa->dti_epd->wMaxPacketSize); + wa->xfer_result = kmalloc(wa->xfer_result_size, GFP_KERNEL); + if (wa->xfer_result == NULL) + goto error_xfer_result_alloc; + result = wa_nep_create(wa, iface); + if (result < 0) { + dev_err(dev, "WA-CDS: can't initialize notif endpoint: %d\n", + result); + goto error_nep_create; + } + return 0; + +error_nep_create: + kfree(wa->xfer_result); +error_xfer_result_alloc: + wa_rpipes_destroy(wa); +error_rpipes_create: + return result; +} +EXPORT_SYMBOL_GPL(wa_create); + + +void __wa_destroy(struct wahc *wa) +{ + if (wa->dti_urb) { + usb_kill_urb(wa->dti_urb); + usb_put_urb(wa->dti_urb); + usb_kill_urb(wa->buf_in_urb); + usb_put_urb(wa->buf_in_urb); + } + kfree(wa->xfer_result); + wa_nep_destroy(wa); + wa_rpipes_destroy(wa); +} +EXPORT_SYMBOL_GPL(__wa_destroy); + +/** + * wa_reset_all - reset the WA device + * @wa: the WA to be reset + * + * For HWAs the radio controller and all other PALs are also reset. + */ +void wa_reset_all(struct wahc *wa) +{ + /* FIXME: assuming HWA. */ + wusbhc_reset_all(wa->wusb); +} + +MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>"); +MODULE_DESCRIPTION("Wireless USB Wire Adapter core"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h new file mode 100644 index 000000000000..586d350cdb4d --- /dev/null +++ b/drivers/usb/wusbcore/wa-hc.h @@ -0,0 +1,417 @@ +/* + * HWA Host Controller Driver + * Wire Adapter Control/Data Streaming Iface (WUSB1.0[8]) + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * This driver implements a USB Host Controller (struct usb_hcd) for a + * Wireless USB Host Controller based on the Wireless USB 1.0 + * Host-Wire-Adapter specification (in layman terms, a USB-dongle that + * implements a Wireless USB host). + * + * Check out the Design-overview.txt file in the source documentation + * for other details on the implementation. + * + * Main blocks: + * + * driver glue with the driver API, workqueue daemon + * + * lc RC instance life cycle management (create, destroy...) + * + * hcd glue with the USB API Host Controller Interface API. + * + * nep Notification EndPoint managent: collect notifications + * and queue them with the workqueue daemon. + * + * Handle notifications as coming from the NEP. Sends them + * off others to their respective modules (eg: connect, + * disconnect and reset go to devconnect). + * + * rpipe Remote Pipe management; rpipe is what we use to write + * to an endpoint on a WUSB device that is connected to a + * HWA RC. + * + * xfer Transfer managment -- this is all the code that gets a + * buffer and pushes it to a device (or viceversa). * + * + * Some day a lot of this code will be shared between this driver and + * the drivers for DWA (xfer, rpipe). + * + * All starts at driver.c:hwahc_probe(), when one of this guys is + * connected. hwahc_disconnect() stops it. + * + * During operation, the main driver is devices connecting or + * disconnecting. They cause the HWA RC to send notifications into + * nep.c:hwahc_nep_cb() that will dispatch them to + * notif.c:wa_notif_dispatch(). From there they will fan to cause + * device connects, disconnects, etc. + * + * Note much of the activity is difficult to follow. For example a + * device connect goes to devconnect, which will cause the "fake" root + * hub port to show a connect and stop there. Then khubd will notice + * and call into the rh.c:hwahc_rc_port_reset() code to authenticate + * the device (and this might require user intervention) and enable + * the port. + * + * We also have a timer workqueue going from devconnect.c that + * schedules in hwahc_devconnect_create(). + * + * The rest of the traffic is in the usual entry points of a USB HCD, + * which are hooked up in driver.c:hwahc_rc_driver, and defined in + * hcd.c. + */ + +#ifndef __HWAHC_INTERNAL_H__ +#define __HWAHC_INTERNAL_H__ + +#include <linux/completion.h> +#include <linux/usb.h> +#include <linux/mutex.h> +#include <linux/spinlock.h> +#include <linux/uwb.h> +#include <linux/usb/wusb.h> +#include <linux/usb/wusb-wa.h> + +struct wusbhc; +struct wahc; +extern void wa_urb_enqueue_run(struct work_struct *ws); + +/** + * RPipe instance + * + * @descr's fields are kept in LE, as we need to send it back and + * forth. + * + * @wa is referenced when set + * + * @segs_available is the number of requests segments that still can + * be submitted to the controller without overloading + * it. It is initialized to descr->wRequests when + * aiming. + * + * A rpipe supports a max of descr->wRequests at the same time; before + * submitting seg_lock has to be taken. If segs_avail > 0, then we can + * submit; if not, we have to queue them. + */ +struct wa_rpipe { + struct kref refcnt; + struct usb_rpipe_descriptor descr; + struct usb_host_endpoint *ep; + struct wahc *wa; + spinlock_t seg_lock; + struct list_head seg_list; + atomic_t segs_available; + u8 buffer[1]; /* For reads/writes on USB */ +}; + + +/** + * Instance of a HWA Host Controller + * + * Except where a more specific lock/mutex applies or atomic, all + * fields protected by @mutex. + * + * @wa_descr Can be accessed without locking because it is in + * the same area where the device descriptors were + * read, so it is guaranteed to exist umodified while + * the device exists. + * + * Endianess has been converted to CPU's. + * + * @nep_* can be accessed without locking as its processing is + * serialized; we submit a NEP URB and it comes to + * hwahc_nep_cb(), which won't issue another URB until it is + * done processing it. + * + * @xfer_list: + * + * List of active transfers to verify existence from a xfer id + * gotten from the xfer result message. Can't use urb->list because + * it goes by endpoint, and we don't know the endpoint at the time + * when we get the xfer result message. We can't really rely on the + * pointer (will have to change for 64 bits) as the xfer id is 32 bits. + * + * @xfer_delayed_list: List of transfers that need to be started + * (with a workqueue, because they were + * submitted from an atomic context). + * + * FIXME: this needs to be layered up: a wusbhc layer (for sharing + * comonalities with WHCI), a wa layer (for sharing + * comonalities with DWA-RC). + */ +struct wahc { + struct usb_device *usb_dev; + struct usb_interface *usb_iface; + + /* HC to deliver notifications */ + union { + struct wusbhc *wusb; + struct dwahc *dwa; + }; + + const struct usb_endpoint_descriptor *dto_epd, *dti_epd; + const struct usb_wa_descriptor *wa_descr; + + struct urb *nep_urb; /* Notification EndPoint [lockless] */ + struct edc nep_edc; + void *nep_buffer; + size_t nep_buffer_size; + + atomic_t notifs_queued; + + u16 rpipes; + unsigned long *rpipe_bm; /* rpipe usage bitmap */ + spinlock_t rpipe_bm_lock; /* protect rpipe_bm */ + struct mutex rpipe_mutex; /* assigning resources to endpoints */ + + struct urb *dti_urb; /* URB for reading xfer results */ + struct urb *buf_in_urb; /* URB for reading data in */ + struct edc dti_edc; /* DTI error density counter */ + struct wa_xfer_result *xfer_result; /* real size = dti_ep maxpktsize */ + size_t xfer_result_size; + + s32 status; /* For reading status */ + + struct list_head xfer_list; + struct list_head xfer_delayed_list; + spinlock_t xfer_list_lock; + struct work_struct xfer_work; + atomic_t xfer_id_count; +}; + + +extern int wa_create(struct wahc *wa, struct usb_interface *iface); +extern void __wa_destroy(struct wahc *wa); +void wa_reset_all(struct wahc *wa); + + +/* Miscellaneous constants */ +enum { + /** Max number of EPROTO errors we tolerate on the NEP in a + * period of time */ + HWAHC_EPROTO_MAX = 16, + /** Period of time for EPROTO errors (in jiffies) */ + HWAHC_EPROTO_PERIOD = 4 * HZ, +}; + + +/* Notification endpoint handling */ +extern int wa_nep_create(struct wahc *, struct usb_interface *); +extern void wa_nep_destroy(struct wahc *); + +static inline int wa_nep_arm(struct wahc *wa, gfp_t gfp_mask) +{ + struct urb *urb = wa->nep_urb; + urb->transfer_buffer = wa->nep_buffer; + urb->transfer_buffer_length = wa->nep_buffer_size; + return usb_submit_urb(urb, gfp_mask); +} + +static inline void wa_nep_disarm(struct wahc *wa) +{ + usb_kill_urb(wa->nep_urb); +} + + +/* RPipes */ +static inline void wa_rpipe_init(struct wahc *wa) +{ + spin_lock_init(&wa->rpipe_bm_lock); + mutex_init(&wa->rpipe_mutex); +} + +static inline void wa_init(struct wahc *wa) +{ + edc_init(&wa->nep_edc); + atomic_set(&wa->notifs_queued, 0); + wa_rpipe_init(wa); + edc_init(&wa->dti_edc); + INIT_LIST_HEAD(&wa->xfer_list); + INIT_LIST_HEAD(&wa->xfer_delayed_list); + spin_lock_init(&wa->xfer_list_lock); + INIT_WORK(&wa->xfer_work, wa_urb_enqueue_run); + atomic_set(&wa->xfer_id_count, 1); +} + +/** + * Destroy a pipe (when refcount drops to zero) + * + * Assumes it has been moved to the "QUIESCING" state. + */ +struct wa_xfer; +extern void rpipe_destroy(struct kref *_rpipe); +static inline +void __rpipe_get(struct wa_rpipe *rpipe) +{ + kref_get(&rpipe->refcnt); +} +extern int rpipe_get_by_ep(struct wahc *, struct usb_host_endpoint *, + struct urb *, gfp_t); +static inline void rpipe_put(struct wa_rpipe *rpipe) +{ + kref_put(&rpipe->refcnt, rpipe_destroy); + +} +extern void rpipe_ep_disable(struct wahc *, struct usb_host_endpoint *); +extern int wa_rpipes_create(struct wahc *); +extern void wa_rpipes_destroy(struct wahc *); +static inline void rpipe_avail_dec(struct wa_rpipe *rpipe) +{ + atomic_dec(&rpipe->segs_available); +} + +/** + * Returns true if the rpipe is ready to submit more segments. + */ +static inline int rpipe_avail_inc(struct wa_rpipe *rpipe) +{ + return atomic_inc_return(&rpipe->segs_available) > 0 + && !list_empty(&rpipe->seg_list); +} + + +/* Transferring data */ +extern int wa_urb_enqueue(struct wahc *, struct usb_host_endpoint *, + struct urb *, gfp_t); +extern int wa_urb_dequeue(struct wahc *, struct urb *); +extern void wa_handle_notif_xfer(struct wahc *, struct wa_notif_hdr *); + + +/* Misc + * + * FIXME: Refcounting for the actual @hwahc object is not correct; I + * mean, this should be refcounting on the HCD underneath, but + * it is not. In any case, the semantics for HCD refcounting + * are *weird*...on refcount reaching zero it just frees + * it...no RC specific function is called...unless I miss + * something. + * + * FIXME: has to go away in favour of an 'struct' hcd based sollution + */ +static inline struct wahc *wa_get(struct wahc *wa) +{ + usb_get_intf(wa->usb_iface); + return wa; +} + +static inline void wa_put(struct wahc *wa) +{ + usb_put_intf(wa->usb_iface); +} + + +static inline int __wa_feature(struct wahc *wa, unsigned op, u16 feature) +{ + return usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + op ? USB_REQ_SET_FEATURE : USB_REQ_CLEAR_FEATURE, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + feature, + wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, + NULL, 0, 1000 /* FIXME: arbitrary */); +} + + +static inline int __wa_set_feature(struct wahc *wa, u16 feature) +{ + return __wa_feature(wa, 1, feature); +} + + +static inline int __wa_clear_feature(struct wahc *wa, u16 feature) +{ + return __wa_feature(wa, 0, feature); +} + + +/** + * Return the status of a Wire Adapter + * + * @wa: Wire Adapter instance + * @returns < 0 errno code on error, or status bitmap as described + * in WUSB1.0[8.3.1.6]. + * + * NOTE: need malloc, some arches don't take USB from the stack + */ +static inline +s32 __wa_get_status(struct wahc *wa) +{ + s32 result; + result = usb_control_msg( + wa->usb_dev, usb_rcvctrlpipe(wa->usb_dev, 0), + USB_REQ_GET_STATUS, + USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0, wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, + &wa->status, sizeof(wa->status), + 1000 /* FIXME: arbitrary */); + if (result >= 0) + result = wa->status; + return result; +} + + +/** + * Waits until the Wire Adapter's status matches @mask/@value + * + * @wa: Wire Adapter instance. + * @returns < 0 errno code on error, otherwise status. + * + * Loop until the WAs status matches the mask and value (status & mask + * == value). Timeout if it doesn't happen. + * + * FIXME: is there an official specification on how long status + * changes can take? + */ +static inline s32 __wa_wait_status(struct wahc *wa, u32 mask, u32 value) +{ + s32 result; + unsigned loops = 10; + do { + msleep(50); + result = __wa_get_status(wa); + if ((result & mask) == value) + break; + if (loops-- == 0) { + result = -ETIMEDOUT; + break; + } + } while (result >= 0); + return result; +} + + +/** Command @hwahc to stop, @returns 0 if ok, < 0 errno code on error */ +static inline int __wa_stop(struct wahc *wa) +{ + int result; + struct device *dev = &wa->usb_iface->dev; + + result = __wa_clear_feature(wa, WA_ENABLE); + if (result < 0 && result != -ENODEV) { + dev_err(dev, "error commanding HC to stop: %d\n", result); + goto out; + } + result = __wa_wait_status(wa, WA_ENABLE, 0); + if (result < 0 && result != -ENODEV) + dev_err(dev, "error waiting for HC to stop: %d\n", result); +out: + return 0; +} + + +#endif /* #ifndef __HWAHC_INTERNAL_H__ */ diff --git a/drivers/usb/wusbcore/wa-nep.c b/drivers/usb/wusbcore/wa-nep.c new file mode 100644 index 000000000000..3f542990c73f --- /dev/null +++ b/drivers/usb/wusbcore/wa-nep.c @@ -0,0 +1,310 @@ +/* + * WUSB Wire Adapter: Control/Data Streaming Interface (WUSB[8]) + * Notification EndPoint support + * + * Copyright (C) 2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * This part takes care of getting the notification from the hw + * only and dispatching through wusbwad into + * wa_notif_dispatch. Handling is done there. + * + * WA notifications are limited in size; most of them are three or + * four bytes long, and the longest is the HWA Device Notification, + * which would not exceed 38 bytes (DNs are limited in payload to 32 + * bytes plus 3 bytes header (WUSB1.0[7.6p2]), plus 3 bytes HWA + * header (WUSB1.0[8.5.4.2]). + * + * It is not clear if more than one Device Notification can be packed + * in a HWA Notification, I assume no because of the wording in + * WUSB1.0[8.5.4.2]. In any case, the bigger any notification could + * get is 256 bytes (as the bLength field is a byte). + * + * So what we do is we have this buffer and read into it; when a + * notification arrives we schedule work to a specific, single thread + * workqueue (so notifications are serialized) and copy the + * notification data. After scheduling the work, we rearm the read from + * the notification endpoint. + * + * Entry points here are: + * + * wa_nep_[create|destroy]() To initialize/release this subsystem + * + * wa_nep_cb() Callback for the notification + * endpoint; when data is ready, this + * does the dispatching. + */ +#include <linux/workqueue.h> +#include <linux/ctype.h> +#include <linux/uwb/debug.h> +#include "wa-hc.h" +#include "wusbhc.h" + +/* Structure for queueing notifications to the workqueue */ +struct wa_notif_work { + struct work_struct work; + struct wahc *wa; + size_t size; + u8 data[]; +}; + +/* + * Process incoming notifications from the WA's Notification EndPoint + * [the wuswad daemon, basically] + * + * @_nw: Pointer to a descriptor which has the pointer to the + * @wa, the size of the buffer and the work queue + * structure (so we can free all when done). + * @returns 0 if ok, < 0 errno code on error. + * + * All notifications follow the same format; they need to start with a + * 'struct wa_notif_hdr' header, so it is easy to parse through + * them. We just break the buffer in individual notifications (the + * standard doesn't say if it can be done or is forbidden, so we are + * cautious) and dispatch each. + * + * So the handling layers are is: + * + * WA specific notification (from NEP) + * Device Notification Received -> wa_handle_notif_dn() + * WUSB Device notification generic handling + * BPST Adjustment -> wa_handle_notif_bpst_adj() + * ... -> ... + * + * @wa has to be referenced + */ +static void wa_notif_dispatch(struct work_struct *ws) +{ + void *itr; + u8 missing = 0; + struct wa_notif_work *nw = container_of(ws, struct wa_notif_work, work); + struct wahc *wa = nw->wa; + struct wa_notif_hdr *notif_hdr; + size_t size; + + struct device *dev = &wa->usb_iface->dev; + +#if 0 + /* FIXME: need to check for this??? */ + if (usb_hcd->state == HC_STATE_QUIESCING) /* Going down? */ + goto out; /* screw it */ +#endif + atomic_dec(&wa->notifs_queued); /* Throttling ctl */ + dev = &wa->usb_iface->dev; + size = nw->size; + itr = nw->data; + + while (size) { + if (size < sizeof(*notif_hdr)) { + missing = sizeof(*notif_hdr) - size; + goto exhausted_buffer; + } + notif_hdr = itr; + if (size < notif_hdr->bLength) + goto exhausted_buffer; + itr += notif_hdr->bLength; + size -= notif_hdr->bLength; + /* Dispatch the notification [don't use itr or size!] */ + switch (notif_hdr->bNotifyType) { + case HWA_NOTIF_DN: { + struct hwa_notif_dn *hwa_dn; + hwa_dn = container_of(notif_hdr, struct hwa_notif_dn, + hdr); + wusbhc_handle_dn(wa->wusb, hwa_dn->bSourceDeviceAddr, + hwa_dn->dndata, + notif_hdr->bLength - sizeof(*hwa_dn)); + break; + } + case WA_NOTIF_TRANSFER: + wa_handle_notif_xfer(wa, notif_hdr); + break; + case DWA_NOTIF_RWAKE: + case DWA_NOTIF_PORTSTATUS: + case HWA_NOTIF_BPST_ADJ: + /* FIXME: unimplemented WA NOTIFs */ + /* fallthru */ + default: + if (printk_ratelimit()) { + dev_err(dev, "HWA: unknown notification 0x%x, " + "%zu bytes; discarding\n", + notif_hdr->bNotifyType, + (size_t)notif_hdr->bLength); + dump_bytes(dev, notif_hdr, 16); + } + break; + } + } +out: + wa_put(wa); + kfree(nw); + return; + + /* THIS SHOULD NOT HAPPEN + * + * Buffer exahusted with partial data remaining; just warn and + * discard the data, as this should not happen. + */ +exhausted_buffer: + if (!printk_ratelimit()) + goto out; + dev_warn(dev, "HWA: device sent short notification, " + "%d bytes missing; discarding %d bytes.\n", + missing, (int)size); + dump_bytes(dev, itr, size); + goto out; +} + +/* + * Deliver incoming WA notifications to the wusbwa workqueue + * + * @wa: Pointer the Wire Adapter Controller Data Streaming + * instance (part of an 'struct usb_hcd'). + * @size: Size of the received buffer + * @returns 0 if ok, < 0 errno code on error. + * + * The input buffer is @wa->nep_buffer, with @size bytes + * (guaranteed to fit in the allocated space, + * @wa->nep_buffer_size). + */ +static int wa_nep_queue(struct wahc *wa, size_t size) +{ + int result = 0; + struct device *dev = &wa->usb_iface->dev; + struct wa_notif_work *nw; + + /* dev_fnstart(dev, "(wa %p, size %zu)\n", wa, size); */ + BUG_ON(size > wa->nep_buffer_size); + if (size == 0) + goto out; + if (atomic_read(&wa->notifs_queued) > 200) { + if (printk_ratelimit()) + dev_err(dev, "Too many notifications queued, " + "throttling back\n"); + goto out; + } + nw = kzalloc(sizeof(*nw) + size, GFP_ATOMIC); + if (nw == NULL) { + if (printk_ratelimit()) + dev_err(dev, "No memory to queue notification\n"); + goto out; + } + INIT_WORK(&nw->work, wa_notif_dispatch); + nw->wa = wa_get(wa); + nw->size = size; + memcpy(nw->data, wa->nep_buffer, size); + atomic_inc(&wa->notifs_queued); /* Throttling ctl */ + queue_work(wusbd, &nw->work); +out: + /* dev_fnend(dev, "(wa %p, size %zu) = result\n", wa, size, result); */ + return result; +} + +/* + * Callback for the notification event endpoint + * + * Check's that everything is fine and then passes the data to be + * queued to the workqueue. + */ +static void wa_nep_cb(struct urb *urb) +{ + int result; + struct wahc *wa = urb->context; + struct device *dev = &wa->usb_iface->dev; + + switch (result = urb->status) { + case 0: + result = wa_nep_queue(wa, urb->actual_length); + if (result < 0) + dev_err(dev, "NEP: unable to process notification(s): " + "%d\n", result); + break; + case -ECONNRESET: /* Not an error, but a controlled situation; */ + case -ENOENT: /* (we killed the URB)...so, no broadcast */ + case -ESHUTDOWN: + dev_dbg(dev, "NEP: going down %d\n", urb->status); + goto out; + default: /* On general errors, we retry unless it gets ugly */ + if (edc_inc(&wa->nep_edc, EDC_MAX_ERRORS, + EDC_ERROR_TIMEFRAME)) { + dev_err(dev, "NEP: URB max acceptable errors " + "exceeded, resetting device\n"); + wa_reset_all(wa); + goto out; + } + dev_err(dev, "NEP: URB error %d\n", urb->status); + } + result = wa_nep_arm(wa, GFP_ATOMIC); + if (result < 0) { + dev_err(dev, "NEP: cannot submit URB: %d\n", result); + wa_reset_all(wa); + } +out: + return; +} + +/* + * Initialize @wa's notification and event's endpoint stuff + * + * This includes the allocating the read buffer, the context ID + * allocation bitmap, the URB and submitting the URB. + */ +int wa_nep_create(struct wahc *wa, struct usb_interface *iface) +{ + int result; + struct usb_endpoint_descriptor *epd; + struct usb_device *usb_dev = interface_to_usbdev(iface); + struct device *dev = &iface->dev; + + edc_init(&wa->nep_edc); + epd = &iface->cur_altsetting->endpoint[0].desc; + wa->nep_buffer_size = 1024; + wa->nep_buffer = kmalloc(wa->nep_buffer_size, GFP_KERNEL); + if (wa->nep_buffer == NULL) { + dev_err(dev, "Unable to allocate notification's read buffer\n"); + goto error_nep_buffer; + } + wa->nep_urb = usb_alloc_urb(0, GFP_KERNEL); + if (wa->nep_urb == NULL) { + dev_err(dev, "Unable to allocate notification URB\n"); + goto error_urb_alloc; + } + usb_fill_int_urb(wa->nep_urb, usb_dev, + usb_rcvintpipe(usb_dev, epd->bEndpointAddress), + wa->nep_buffer, wa->nep_buffer_size, + wa_nep_cb, wa, epd->bInterval); + result = wa_nep_arm(wa, GFP_KERNEL); + if (result < 0) { + dev_err(dev, "Cannot submit notification URB: %d\n", result); + goto error_nep_arm; + } + return 0; + +error_nep_arm: + usb_free_urb(wa->nep_urb); +error_urb_alloc: + kfree(wa->nep_buffer); +error_nep_buffer: + return -ENOMEM; +} + +void wa_nep_destroy(struct wahc *wa) +{ + wa_nep_disarm(wa); + usb_free_urb(wa->nep_urb); + kfree(wa->nep_buffer); +} diff --git a/drivers/usb/wusbcore/wa-rpipe.c b/drivers/usb/wusbcore/wa-rpipe.c new file mode 100644 index 000000000000..f18e4aae66e9 --- /dev/null +++ b/drivers/usb/wusbcore/wa-rpipe.c @@ -0,0 +1,562 @@ +/* + * WUSB Wire Adapter + * rpipe management + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + * + * RPIPE + * + * Targetted at different downstream endpoints + * + * Descriptor: use to config the remote pipe. + * + * The number of blocks could be dynamic (wBlocks in descriptor is + * 0)--need to schedule them then. + * + * Each bit in wa->rpipe_bm represents if an rpipe is being used or + * not. Rpipes are represented with a 'struct wa_rpipe' that is + * attached to the hcpriv member of a 'struct usb_host_endpoint'. + * + * When you need to xfer data to an endpoint, you get an rpipe for it + * with wa_ep_rpipe_get(), which gives you a reference to the rpipe + * and keeps a single one (the first one) with the endpoint. When you + * are done transferring, you drop that reference. At the end the + * rpipe is always allocated and bound to the endpoint. There it might + * be recycled when not used. + * + * Addresses: + * + * We use a 1:1 mapping mechanism between port address (0 based + * index, actually) and the address. The USB stack knows about this. + * + * USB Stack port number 4 (1 based) + * WUSB code port index 3 (0 based) + * USB Addresss 5 (2 based -- 0 is for default, 1 for root hub) + * + * Now, because we don't use the concept as default address exactly + * like the (wired) USB code does, we need to kind of skip it. So we + * never take addresses from the urb->pipe, but from the + * urb->dev->devnum, to make sure that we always have the right + * destination address. + */ +#include <linux/init.h> +#include <asm/atomic.h> +#include <linux/bitmap.h> +#include "wusbhc.h" +#include "wa-hc.h" + +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + + +static int __rpipe_get_descr(struct wahc *wa, + struct usb_rpipe_descriptor *descr, u16 index) +{ + ssize_t result; + struct device *dev = &wa->usb_iface->dev; + + /* Get the RPIPE descriptor -- we cannot use the usb_get_descriptor() + * function because the arguments are different. + */ + d_printf(1, dev, "rpipe %u: get descr\n", index); + result = usb_control_msg( + wa->usb_dev, usb_rcvctrlpipe(wa->usb_dev, 0), + USB_REQ_GET_DESCRIPTOR, + USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_RPIPE, + USB_DT_RPIPE<<8, index, descr, sizeof(*descr), + 1000 /* FIXME: arbitrary */); + if (result < 0) { + dev_err(dev, "rpipe %u: get descriptor failed: %d\n", + index, (int)result); + goto error; + } + if (result < sizeof(*descr)) { + dev_err(dev, "rpipe %u: got short descriptor " + "(%zd vs %zd bytes needed)\n", + index, result, sizeof(*descr)); + result = -EINVAL; + goto error; + } + result = 0; + +error: + return result; +} + +/* + * + * The descriptor is assumed to be properly initialized (ie: you got + * it through __rpipe_get_descr()). + */ +static int __rpipe_set_descr(struct wahc *wa, + struct usb_rpipe_descriptor *descr, u16 index) +{ + ssize_t result; + struct device *dev = &wa->usb_iface->dev; + + /* we cannot use the usb_get_descriptor() function because the + * arguments are different. + */ + d_printf(1, dev, "rpipe %u: set descr\n", index); + result = usb_control_msg( + wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + USB_REQ_SET_DESCRIPTOR, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_RPIPE, + USB_DT_RPIPE<<8, index, descr, sizeof(*descr), + HZ / 10); + if (result < 0) { + dev_err(dev, "rpipe %u: set descriptor failed: %d\n", + index, (int)result); + goto error; + } + if (result < sizeof(*descr)) { + dev_err(dev, "rpipe %u: sent short descriptor " + "(%zd vs %zd bytes required)\n", + index, result, sizeof(*descr)); + result = -EINVAL; + goto error; + } + result = 0; + +error: + return result; + +} + +static void rpipe_init(struct wa_rpipe *rpipe) +{ + kref_init(&rpipe->refcnt); + spin_lock_init(&rpipe->seg_lock); + INIT_LIST_HEAD(&rpipe->seg_list); +} + +static unsigned rpipe_get_idx(struct wahc *wa, unsigned rpipe_idx) +{ + unsigned long flags; + + spin_lock_irqsave(&wa->rpipe_bm_lock, flags); + rpipe_idx = find_next_zero_bit(wa->rpipe_bm, wa->rpipes, rpipe_idx); + if (rpipe_idx < wa->rpipes) + set_bit(rpipe_idx, wa->rpipe_bm); + spin_unlock_irqrestore(&wa->rpipe_bm_lock, flags); + + return rpipe_idx; +} + +static void rpipe_put_idx(struct wahc *wa, unsigned rpipe_idx) +{ + unsigned long flags; + + spin_lock_irqsave(&wa->rpipe_bm_lock, flags); + clear_bit(rpipe_idx, wa->rpipe_bm); + spin_unlock_irqrestore(&wa->rpipe_bm_lock, flags); +} + +void rpipe_destroy(struct kref *_rpipe) +{ + struct wa_rpipe *rpipe = container_of(_rpipe, struct wa_rpipe, refcnt); + u8 index = le16_to_cpu(rpipe->descr.wRPipeIndex); + d_fnstart(1, NULL, "(rpipe %p %u)\n", rpipe, index); + if (rpipe->ep) + rpipe->ep->hcpriv = NULL; + rpipe_put_idx(rpipe->wa, index); + wa_put(rpipe->wa); + kfree(rpipe); + d_fnend(1, NULL, "(rpipe %p %u)\n", rpipe, index); +} +EXPORT_SYMBOL_GPL(rpipe_destroy); + +/* + * Locate an idle rpipe, create an structure for it and return it + * + * @wa is referenced and unlocked + * @crs enum rpipe_attr, required endpoint characteristics + * + * The rpipe can be used only sequentially (not in parallel). + * + * The rpipe is moved into the "ready" state. + */ +static int rpipe_get_idle(struct wa_rpipe **prpipe, struct wahc *wa, u8 crs, + gfp_t gfp) +{ + int result; + unsigned rpipe_idx; + struct wa_rpipe *rpipe; + struct device *dev = &wa->usb_iface->dev; + + d_fnstart(3, dev, "(wa %p crs 0x%02x)\n", wa, crs); + rpipe = kzalloc(sizeof(*rpipe), gfp); + if (rpipe == NULL) + return -ENOMEM; + rpipe_init(rpipe); + + /* Look for an idle pipe */ + for (rpipe_idx = 0; rpipe_idx < wa->rpipes; rpipe_idx++) { + rpipe_idx = rpipe_get_idx(wa, rpipe_idx); + if (rpipe_idx >= wa->rpipes) /* no more pipes :( */ + break; + result = __rpipe_get_descr(wa, &rpipe->descr, rpipe_idx); + if (result < 0) + dev_err(dev, "Can't get descriptor for rpipe %u: %d\n", + rpipe_idx, result); + else if ((rpipe->descr.bmCharacteristics & crs) != 0) + goto found; + rpipe_put_idx(wa, rpipe_idx); + } + *prpipe = NULL; + kfree(rpipe); + d_fnend(3, dev, "(wa %p crs 0x%02x) = -ENXIO\n", wa, crs); + return -ENXIO; + +found: + set_bit(rpipe_idx, wa->rpipe_bm); + rpipe->wa = wa_get(wa); + *prpipe = rpipe; + d_fnstart(3, dev, "(wa %p crs 0x%02x) = 0\n", wa, crs); + return 0; +} + +static int __rpipe_reset(struct wahc *wa, unsigned index) +{ + int result; + struct device *dev = &wa->usb_iface->dev; + + d_printf(1, dev, "rpipe %u: reset\n", index); + result = usb_control_msg( + wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + USB_REQ_RPIPE_RESET, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_RPIPE, + 0, index, NULL, 0, 1000 /* FIXME: arbitrary */); + if (result < 0) + dev_err(dev, "rpipe %u: reset failed: %d\n", + index, result); + return result; +} + +/* + * Fake companion descriptor for ep0 + * + * See WUSB1.0[7.4.4], most of this is zero for bulk/int/ctl + */ +static struct usb_wireless_ep_comp_descriptor epc0 = { + .bLength = sizeof(epc0), + .bDescriptorType = USB_DT_WIRELESS_ENDPOINT_COMP, +/* .bMaxBurst = 1, */ + .bMaxSequence = 31, +}; + +/* + * Look for EP companion descriptor + * + * Get there, look for Inara in the endpoint's extra descriptors + */ +static struct usb_wireless_ep_comp_descriptor *rpipe_epc_find( + struct device *dev, struct usb_host_endpoint *ep) +{ + void *itr; + size_t itr_size; + struct usb_descriptor_header *hdr; + struct usb_wireless_ep_comp_descriptor *epcd; + + d_fnstart(3, dev, "(ep %p)\n", ep); + if (ep->desc.bEndpointAddress == 0) { + epcd = &epc0; + goto out; + } + itr = ep->extra; + itr_size = ep->extralen; + epcd = NULL; + while (itr_size > 0) { + if (itr_size < sizeof(*hdr)) { + dev_err(dev, "HW Bug? ep 0x%02x: extra descriptors " + "at offset %zu: only %zu bytes left\n", + ep->desc.bEndpointAddress, + itr - (void *) ep->extra, itr_size); + break; + } + hdr = itr; + if (hdr->bDescriptorType == USB_DT_WIRELESS_ENDPOINT_COMP) { + epcd = itr; + break; + } + if (hdr->bLength > itr_size) { + dev_err(dev, "HW Bug? ep 0x%02x: extra descriptor " + "at offset %zu (type 0x%02x) " + "length %d but only %zu bytes left\n", + ep->desc.bEndpointAddress, + itr - (void *) ep->extra, hdr->bDescriptorType, + hdr->bLength, itr_size); + break; + } + itr += hdr->bLength; + itr_size -= hdr->bDescriptorType; + } +out: + d_fnend(3, dev, "(ep %p) = %p\n", ep, epcd); + return epcd; +} + +/* + * Aim an rpipe to its device & endpoint destination + * + * Make sure we change the address to unauthenticathed if the device + * is WUSB and it is not authenticated. + */ +static int rpipe_aim(struct wa_rpipe *rpipe, struct wahc *wa, + struct usb_host_endpoint *ep, struct urb *urb, gfp_t gfp) +{ + int result = -ENOMSG; /* better code for lack of companion? */ + struct device *dev = &wa->usb_iface->dev; + struct usb_device *usb_dev = urb->dev; + struct usb_wireless_ep_comp_descriptor *epcd; + u8 unauth; + + d_fnstart(3, dev, "(rpipe %p wa %p ep %p, urb %p)\n", + rpipe, wa, ep, urb); + epcd = rpipe_epc_find(dev, ep); + if (epcd == NULL) { + dev_err(dev, "ep 0x%02x: can't find companion descriptor\n", + ep->desc.bEndpointAddress); + goto error; + } + unauth = usb_dev->wusb && !usb_dev->authenticated ? 0x80 : 0; + __rpipe_reset(wa, le16_to_cpu(rpipe->descr.wRPipeIndex)); + atomic_set(&rpipe->segs_available, le16_to_cpu(rpipe->descr.wRequests)); + /* FIXME: block allocation system; request with queuing and timeout */ + /* FIXME: compute so seg_size > ep->maxpktsize */ + rpipe->descr.wBlocks = cpu_to_le16(16); /* given */ + /* ep0 maxpktsize is 0x200 (WUSB1.0[4.8.1]) */ + rpipe->descr.wMaxPacketSize = cpu_to_le16(ep->desc.wMaxPacketSize); + rpipe->descr.bHSHubAddress = 0; /* reserved: zero */ + rpipe->descr.bHSHubPort = wusb_port_no_to_idx(urb->dev->portnum); + /* FIXME: use maximum speed as supported or recommended by device */ + rpipe->descr.bSpeed = usb_pipeendpoint(urb->pipe) == 0 ? + UWB_PHY_RATE_53 : UWB_PHY_RATE_200; + d_printf(2, dev, "addr %u (0x%02x) rpipe #%u ep# %u speed %d\n", + urb->dev->devnum, urb->dev->devnum | unauth, + le16_to_cpu(rpipe->descr.wRPipeIndex), + usb_pipeendpoint(urb->pipe), rpipe->descr.bSpeed); + /* see security.c:wusb_update_address() */ + if (unlikely(urb->dev->devnum == 0x80)) + rpipe->descr.bDeviceAddress = 0; + else + rpipe->descr.bDeviceAddress = urb->dev->devnum | unauth; + rpipe->descr.bEndpointAddress = ep->desc.bEndpointAddress; + /* FIXME: bDataSequence */ + rpipe->descr.bDataSequence = 0; + /* FIXME: dwCurrentWindow */ + rpipe->descr.dwCurrentWindow = cpu_to_le32(1); + /* FIXME: bMaxDataSequence */ + rpipe->descr.bMaxDataSequence = epcd->bMaxSequence - 1; + rpipe->descr.bInterval = ep->desc.bInterval; + /* FIXME: bOverTheAirInterval */ + rpipe->descr.bOverTheAirInterval = 0; /* 0 if not isoc */ + /* FIXME: xmit power & preamble blah blah */ + rpipe->descr.bmAttribute = ep->desc.bmAttributes & 0x03; + /* rpipe->descr.bmCharacteristics RO */ + /* FIXME: bmRetryOptions */ + rpipe->descr.bmRetryOptions = 15; + /* FIXME: use for assessing link quality? */ + rpipe->descr.wNumTransactionErrors = 0; + result = __rpipe_set_descr(wa, &rpipe->descr, + le16_to_cpu(rpipe->descr.wRPipeIndex)); + if (result < 0) { + dev_err(dev, "Cannot aim rpipe: %d\n", result); + goto error; + } + result = 0; +error: + d_fnend(3, dev, "(rpipe %p wa %p ep %p urb %p) = %d\n", + rpipe, wa, ep, urb, result); + return result; +} + +/* + * Check an aimed rpipe to make sure it points to where we want + * + * We use bit 19 of the Linux USB pipe bitmap for unauth vs auth + * space; when it is like that, we or 0x80 to make an unauth address. + */ +static int rpipe_check_aim(const struct wa_rpipe *rpipe, const struct wahc *wa, + const struct usb_host_endpoint *ep, + const struct urb *urb, gfp_t gfp) +{ + int result = 0; /* better code for lack of companion? */ + struct device *dev = &wa->usb_iface->dev; + struct usb_device *usb_dev = urb->dev; + u8 unauth = (usb_dev->wusb && !usb_dev->authenticated) ? 0x80 : 0; + u8 portnum = wusb_port_no_to_idx(urb->dev->portnum); + + d_fnstart(3, dev, "(rpipe %p wa %p ep %p, urb %p)\n", + rpipe, wa, ep, urb); +#define AIM_CHECK(rdf, val, text) \ + do { \ + if (rpipe->descr.rdf != (val)) { \ + dev_err(dev, \ + "rpipe aim discrepancy: " #rdf " " text "\n", \ + rpipe->descr.rdf, (val)); \ + result = -EINVAL; \ + WARN_ON(1); \ + } \ + } while (0) + AIM_CHECK(wMaxPacketSize, cpu_to_le16(ep->desc.wMaxPacketSize), + "(%u vs %u)"); + AIM_CHECK(bHSHubPort, portnum, "(%u vs %u)"); + AIM_CHECK(bSpeed, usb_pipeendpoint(urb->pipe) == 0 ? + UWB_PHY_RATE_53 : UWB_PHY_RATE_200, + "(%u vs %u)"); + AIM_CHECK(bDeviceAddress, urb->dev->devnum | unauth, "(%u vs %u)"); + AIM_CHECK(bEndpointAddress, ep->desc.bEndpointAddress, "(%u vs %u)"); + AIM_CHECK(bInterval, ep->desc.bInterval, "(%u vs %u)"); + AIM_CHECK(bmAttribute, ep->desc.bmAttributes & 0x03, "(%u vs %u)"); +#undef AIM_CHECK + return result; +} + +#ifndef CONFIG_BUG +#define CONFIG_BUG 0 +#endif + +/* + * Make sure there is an rpipe allocated for an endpoint + * + * If already allocated, we just refcount it; if not, we get an + * idle one, aim it to the right location and take it. + * + * Attaches to ep->hcpriv and rpipe->ep to ep. + */ +int rpipe_get_by_ep(struct wahc *wa, struct usb_host_endpoint *ep, + struct urb *urb, gfp_t gfp) +{ + int result = 0; + struct device *dev = &wa->usb_iface->dev; + struct wa_rpipe *rpipe; + u8 eptype; + + d_fnstart(3, dev, "(wa %p ep %p urb %p gfp 0x%08x)\n", wa, ep, urb, + gfp); + mutex_lock(&wa->rpipe_mutex); + rpipe = ep->hcpriv; + if (rpipe != NULL) { + if (CONFIG_BUG == 1) { + result = rpipe_check_aim(rpipe, wa, ep, urb, gfp); + if (result < 0) + goto error; + } + __rpipe_get(rpipe); + d_printf(2, dev, "ep 0x%02x: reusing rpipe %u\n", + ep->desc.bEndpointAddress, + le16_to_cpu(rpipe->descr.wRPipeIndex)); + } else { + /* hmm, assign idle rpipe, aim it */ + result = -ENOBUFS; + eptype = ep->desc.bmAttributes & 0x03; + result = rpipe_get_idle(&rpipe, wa, 1 << eptype, gfp); + if (result < 0) + goto error; + result = rpipe_aim(rpipe, wa, ep, urb, gfp); + if (result < 0) { + rpipe_put(rpipe); + goto error; + } + ep->hcpriv = rpipe; + rpipe->ep = ep; + __rpipe_get(rpipe); /* for caching into ep->hcpriv */ + d_printf(2, dev, "ep 0x%02x: using rpipe %u\n", + ep->desc.bEndpointAddress, + le16_to_cpu(rpipe->descr.wRPipeIndex)); + } + d_dump(4, dev, &rpipe->descr, sizeof(rpipe->descr)); +error: + mutex_unlock(&wa->rpipe_mutex); + d_fnend(3, dev, "(wa %p ep %p urb %p gfp 0x%08x)\n", wa, ep, urb, gfp); + return result; +} + +/* + * Allocate the bitmap for each rpipe. + */ +int wa_rpipes_create(struct wahc *wa) +{ + wa->rpipes = wa->wa_descr->wNumRPipes; + wa->rpipe_bm = kzalloc(BITS_TO_LONGS(wa->rpipes)*sizeof(unsigned long), + GFP_KERNEL); + if (wa->rpipe_bm == NULL) + return -ENOMEM; + return 0; +} + +void wa_rpipes_destroy(struct wahc *wa) +{ + struct device *dev = &wa->usb_iface->dev; + d_fnstart(3, dev, "(wa %p)\n", wa); + if (!bitmap_empty(wa->rpipe_bm, wa->rpipes)) { + char buf[256]; + WARN_ON(1); + bitmap_scnprintf(buf, sizeof(buf), wa->rpipe_bm, wa->rpipes); + dev_err(dev, "BUG: pipes not released on exit: %s\n", buf); + } + kfree(wa->rpipe_bm); + d_fnend(3, dev, "(wa %p)\n", wa); +} + +/* + * Release resources allocated for an endpoint + * + * If there is an associated rpipe to this endpoint, Abort any pending + * transfers and put it. If the rpipe ends up being destroyed, + * __rpipe_destroy() will cleanup ep->hcpriv. + * + * This is called before calling hcd->stop(), so you don't need to do + * anything else in there. + */ +void rpipe_ep_disable(struct wahc *wa, struct usb_host_endpoint *ep) +{ + struct device *dev = &wa->usb_iface->dev; + struct wa_rpipe *rpipe; + d_fnstart(2, dev, "(wa %p ep %p)\n", wa, ep); + mutex_lock(&wa->rpipe_mutex); + rpipe = ep->hcpriv; + if (rpipe != NULL) { + unsigned rc = atomic_read(&rpipe->refcnt.refcount); + int result; + u16 index = le16_to_cpu(rpipe->descr.wRPipeIndex); + + if (rc != 1) + d_printf(1, dev, "(wa %p ep %p) rpipe %p refcnt %u\n", + wa, ep, rpipe, rc); + + d_printf(1, dev, "rpipe %u: abort\n", index); + result = usb_control_msg( + wa->usb_dev, usb_rcvctrlpipe(wa->usb_dev, 0), + USB_REQ_RPIPE_ABORT, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_RPIPE, + 0, index, NULL, 0, 1000 /* FIXME: arbitrary */); + if (result < 0 && result != -ENODEV /* dev is gone */) + d_printf(1, dev, "(wa %p rpipe %u): abort failed: %d\n", + wa, index, result); + rpipe_put(rpipe); + } + mutex_unlock(&wa->rpipe_mutex); + d_fnend(2, dev, "(wa %p ep %p)\n", wa, ep); + return; +} +EXPORT_SYMBOL_GPL(rpipe_ep_disable); diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c new file mode 100644 index 000000000000..c038635d1c64 --- /dev/null +++ b/drivers/usb/wusbcore/wa-xfer.c @@ -0,0 +1,1709 @@ +/* + * WUSB Wire Adapter + * Data transfer and URB enqueing + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * How transfers work: get a buffer, break it up in segments (segment + * size is a multiple of the maxpacket size). For each segment issue a + * segment request (struct wa_xfer_*), then send the data buffer if + * out or nothing if in (all over the DTO endpoint). + * + * For each submitted segment request, a notification will come over + * the NEP endpoint and a transfer result (struct xfer_result) will + * arrive in the DTI URB. Read it, get the xfer ID, see if there is + * data coming (inbound transfer), schedule a read and handle it. + * + * Sounds simple, it is a pain to implement. + * + * + * ENTRY POINTS + * + * FIXME + * + * LIFE CYCLE / STATE DIAGRAM + * + * FIXME + * + * THIS CODE IS DISGUSTING + * + * Warned you are; it's my second try and still not happy with it. + * + * NOTES: + * + * - No iso + * + * - Supports DMA xfers, control, bulk and maybe interrupt + * + * - Does not recycle unused rpipes + * + * An rpipe is assigned to an endpoint the first time it is used, + * and then it's there, assigned, until the endpoint is disabled + * (destroyed [{h,d}wahc_op_ep_disable()]. The assignment of the + * rpipe to the endpoint is done under the wa->rpipe_sem semaphore + * (should be a mutex). + * + * Two methods it could be done: + * + * (a) set up a timer everytime an rpipe's use count drops to 1 + * (which means unused) or when a transfer ends. Reset the + * timer when a xfer is queued. If the timer expires, release + * the rpipe [see rpipe_ep_disable()]. + * + * (b) when looking for free rpipes to attach [rpipe_get_by_ep()], + * when none are found go over the list, check their endpoint + * and their activity record (if no last-xfer-done-ts in the + * last x seconds) take it + * + * However, due to the fact that we have a set of limited + * resources (max-segments-at-the-same-time per xfer, + * xfers-per-ripe, blocks-per-rpipe, rpipes-per-host), at the end + * we are going to have to rebuild all this based on an scheduler, + * to where we have a list of transactions to do and based on the + * availability of the different requried components (blocks, + * rpipes, segment slots, etc), we go scheduling them. Painful. + */ +#include <linux/init.h> +#include <linux/spinlock.h> +#include <linux/hash.h> +#include "wa-hc.h" +#include "wusbhc.h" + +#undef D_LOCAL +#define D_LOCAL 0 /* 0 disabled, > 0 different levels... */ +#include <linux/uwb/debug.h> + +enum { + WA_SEGS_MAX = 255, +}; + +enum wa_seg_status { + WA_SEG_NOTREADY, + WA_SEG_READY, + WA_SEG_DELAYED, + WA_SEG_SUBMITTED, + WA_SEG_PENDING, + WA_SEG_DTI_PENDING, + WA_SEG_DONE, + WA_SEG_ERROR, + WA_SEG_ABORTED, +}; + +static void wa_xfer_delayed_run(struct wa_rpipe *); + +/* + * Life cycle governed by 'struct urb' (the refcount of the struct is + * that of the 'struct urb' and usb_free_urb() would free the whole + * struct). + */ +struct wa_seg { + struct urb urb; + struct urb *dto_urb; /* for data output? */ + struct list_head list_node; /* for rpipe->req_list */ + struct wa_xfer *xfer; /* out xfer */ + u8 index; /* which segment we are */ + enum wa_seg_status status; + ssize_t result; /* bytes xfered or error */ + struct wa_xfer_hdr xfer_hdr; + u8 xfer_extra[]; /* xtra space for xfer_hdr_ctl */ +}; + +static void wa_seg_init(struct wa_seg *seg) +{ + /* usb_init_urb() repeats a lot of work, so we do it here */ + kref_init(&seg->urb.kref); +} + +/* + * Protected by xfer->lock + * + */ +struct wa_xfer { + struct kref refcnt; + struct list_head list_node; + spinlock_t lock; + u32 id; + + struct wahc *wa; /* Wire adapter we are plugged to */ + struct usb_host_endpoint *ep; + struct urb *urb; /* URB we are transfering for */ + struct wa_seg **seg; /* transfer segments */ + u8 segs, segs_submitted, segs_done; + unsigned is_inbound:1; + unsigned is_dma:1; + size_t seg_size; + int result; + + gfp_t gfp; /* allocation mask */ + + struct wusb_dev *wusb_dev; /* for activity timestamps */ +}; + +static inline void wa_xfer_init(struct wa_xfer *xfer) +{ + kref_init(&xfer->refcnt); + INIT_LIST_HEAD(&xfer->list_node); + spin_lock_init(&xfer->lock); +} + +/* + * Destory a transfer structure + * + * Note that the xfer->seg[index] thingies follow the URB life cycle, + * so we need to put them, not free them. + */ +static void wa_xfer_destroy(struct kref *_xfer) +{ + struct wa_xfer *xfer = container_of(_xfer, struct wa_xfer, refcnt); + if (xfer->seg) { + unsigned cnt; + for (cnt = 0; cnt < xfer->segs; cnt++) { + if (xfer->is_inbound) + usb_put_urb(xfer->seg[cnt]->dto_urb); + usb_put_urb(&xfer->seg[cnt]->urb); + } + } + kfree(xfer); + d_printf(2, NULL, "xfer %p destroyed\n", xfer); +} + +static void wa_xfer_get(struct wa_xfer *xfer) +{ + kref_get(&xfer->refcnt); +} + +static void wa_xfer_put(struct wa_xfer *xfer) +{ + d_fnstart(3, NULL, "(xfer %p) -- ref count bef put %d\n", + xfer, atomic_read(&xfer->refcnt.refcount)); + kref_put(&xfer->refcnt, wa_xfer_destroy); + d_fnend(3, NULL, "(xfer %p) = void\n", xfer); +} + +/* + * xfer is referenced + * + * xfer->lock has to be unlocked + * + * We take xfer->lock for setting the result; this is a barrier + * against drivers/usb/core/hcd.c:unlink1() being called after we call + * usb_hcd_giveback_urb() and wa_urb_dequeue() trying to get a + * reference to the transfer. + */ +static void wa_xfer_giveback(struct wa_xfer *xfer) +{ + unsigned long flags; + d_fnstart(3, NULL, "(xfer %p)\n", xfer); + spin_lock_irqsave(&xfer->wa->xfer_list_lock, flags); + list_del_init(&xfer->list_node); + spin_unlock_irqrestore(&xfer->wa->xfer_list_lock, flags); + /* FIXME: segmentation broken -- kills DWA */ + wusbhc_giveback_urb(xfer->wa->wusb, xfer->urb, xfer->result); + wa_put(xfer->wa); + wa_xfer_put(xfer); + d_fnend(3, NULL, "(xfer %p) = void\n", xfer); +} + +/* + * xfer is referenced + * + * xfer->lock has to be unlocked + */ +static void wa_xfer_completion(struct wa_xfer *xfer) +{ + d_fnstart(3, NULL, "(xfer %p)\n", xfer); + if (xfer->wusb_dev) + wusb_dev_put(xfer->wusb_dev); + rpipe_put(xfer->ep->hcpriv); + wa_xfer_giveback(xfer); + d_fnend(3, NULL, "(xfer %p) = void\n", xfer); + return; +} + +/* + * If transfer is done, wrap it up and return true + * + * xfer->lock has to be locked + */ +static unsigned __wa_xfer_is_done(struct wa_xfer *xfer) +{ + unsigned result, cnt; + struct wa_seg *seg; + struct urb *urb = xfer->urb; + unsigned found_short = 0; + + d_fnstart(3, NULL, "(xfer %p)\n", xfer); + result = xfer->segs_done == xfer->segs_submitted; + if (result == 0) + goto out; + urb->actual_length = 0; + for (cnt = 0; cnt < xfer->segs; cnt++) { + seg = xfer->seg[cnt]; + switch (seg->status) { + case WA_SEG_DONE: + if (found_short && seg->result > 0) { + if (printk_ratelimit()) + printk(KERN_ERR "xfer %p#%u: bad short " + "segments (%zu)\n", xfer, cnt, + seg->result); + urb->status = -EINVAL; + goto out; + } + urb->actual_length += seg->result; + if (seg->result < xfer->seg_size + && cnt != xfer->segs-1) + found_short = 1; + d_printf(2, NULL, "xfer %p#%u: DONE short %d " + "result %zu urb->actual_length %d\n", + xfer, seg->index, found_short, seg->result, + urb->actual_length); + break; + case WA_SEG_ERROR: + xfer->result = seg->result; + d_printf(2, NULL, "xfer %p#%u: ERROR result %zu\n", + xfer, seg->index, seg->result); + goto out; + case WA_SEG_ABORTED: + WARN_ON(urb->status != -ECONNRESET + && urb->status != -ENOENT); + d_printf(2, NULL, "xfer %p#%u ABORTED: result %d\n", + xfer, seg->index, urb->status); + xfer->result = urb->status; + goto out; + default: + /* if (printk_ratelimit()) */ + printk(KERN_ERR "xfer %p#%u: " + "is_done bad state %d\n", + xfer, cnt, seg->status); + xfer->result = -EINVAL; + WARN_ON(1); + goto out; + } + } + xfer->result = 0; +out: + d_fnend(3, NULL, "(xfer %p) = void\n", xfer); + return result; +} + +/* + * Initialize a transfer's ID + * + * We need to use a sequential number; if we use the pointer or the + * hash of the pointer, it can repeat over sequential transfers and + * then it will confuse the HWA....wonder why in hell they put a 32 + * bit handle in there then. + */ +static void wa_xfer_id_init(struct wa_xfer *xfer) +{ + xfer->id = atomic_add_return(1, &xfer->wa->xfer_id_count); +} + +/* + * Return the xfer's ID associated with xfer + * + * Need to generate a + */ +static u32 wa_xfer_id(struct wa_xfer *xfer) +{ + return xfer->id; +} + +/* + * Search for a transfer list ID on the HCD's URB list + * + * For 32 bit architectures, we use the pointer itself; for 64 bits, a + * 32-bit hash of the pointer. + * + * @returns NULL if not found. + */ +static struct wa_xfer *wa_xfer_get_by_id(struct wahc *wa, u32 id) +{ + unsigned long flags; + struct wa_xfer *xfer_itr; + spin_lock_irqsave(&wa->xfer_list_lock, flags); + list_for_each_entry(xfer_itr, &wa->xfer_list, list_node) { + if (id == xfer_itr->id) { + wa_xfer_get(xfer_itr); + goto out; + } + } + xfer_itr = NULL; +out: + spin_unlock_irqrestore(&wa->xfer_list_lock, flags); + return xfer_itr; +} + +struct wa_xfer_abort_buffer { + struct urb urb; + struct wa_xfer_abort cmd; +}; + +static void __wa_xfer_abort_cb(struct urb *urb) +{ + struct wa_xfer_abort_buffer *b = urb->context; + usb_put_urb(&b->urb); +} + +/* + * Aborts an ongoing transaction + * + * Assumes the transfer is referenced and locked and in a submitted + * state (mainly that there is an endpoint/rpipe assigned). + * + * The callback (see above) does nothing but freeing up the data by + * putting the URB. Because the URB is allocated at the head of the + * struct, the whole space we allocated is kfreed. + * + * We'll get an 'aborted transaction' xfer result on DTI, that'll + * politely ignore because at this point the transaction has been + * marked as aborted already. + */ +static void __wa_xfer_abort(struct wa_xfer *xfer) +{ + int result; + struct device *dev = &xfer->wa->usb_iface->dev; + struct wa_xfer_abort_buffer *b; + struct wa_rpipe *rpipe = xfer->ep->hcpriv; + + b = kmalloc(sizeof(*b), GFP_ATOMIC); + if (b == NULL) + goto error_kmalloc; + b->cmd.bLength = sizeof(b->cmd); + b->cmd.bRequestType = WA_XFER_ABORT; + b->cmd.wRPipe = rpipe->descr.wRPipeIndex; + b->cmd.dwTransferID = wa_xfer_id(xfer); + + usb_init_urb(&b->urb); + usb_fill_bulk_urb(&b->urb, xfer->wa->usb_dev, + usb_sndbulkpipe(xfer->wa->usb_dev, + xfer->wa->dto_epd->bEndpointAddress), + &b->cmd, sizeof(b->cmd), __wa_xfer_abort_cb, b); + result = usb_submit_urb(&b->urb, GFP_ATOMIC); + if (result < 0) + goto error_submit; + return; /* callback frees! */ + + +error_submit: + if (printk_ratelimit()) + dev_err(dev, "xfer %p: Can't submit abort request: %d\n", + xfer, result); + kfree(b); +error_kmalloc: + return; + +} + +/* + * + * @returns < 0 on error, transfer segment request size if ok + */ +static ssize_t __wa_xfer_setup_sizes(struct wa_xfer *xfer, + enum wa_xfer_type *pxfer_type) +{ + ssize_t result; + struct device *dev = &xfer->wa->usb_iface->dev; + size_t maxpktsize; + struct urb *urb = xfer->urb; + struct wa_rpipe *rpipe = xfer->ep->hcpriv; + + d_fnstart(3, dev, "(xfer %p [rpipe %p] urb %p)\n", + xfer, rpipe, urb); + switch (rpipe->descr.bmAttribute & 0x3) { + case USB_ENDPOINT_XFER_CONTROL: + *pxfer_type = WA_XFER_TYPE_CTL; + result = sizeof(struct wa_xfer_ctl); + break; + case USB_ENDPOINT_XFER_INT: + case USB_ENDPOINT_XFER_BULK: + *pxfer_type = WA_XFER_TYPE_BI; + result = sizeof(struct wa_xfer_bi); + break; + case USB_ENDPOINT_XFER_ISOC: + dev_err(dev, "FIXME: ISOC not implemented\n"); + result = -ENOSYS; + goto error; + default: + /* never happens */ + BUG(); + result = -EINVAL; /* shut gcc up */ + }; + xfer->is_inbound = urb->pipe & USB_DIR_IN ? 1 : 0; + xfer->is_dma = urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP ? 1 : 0; + xfer->seg_size = le16_to_cpu(rpipe->descr.wBlocks) + * 1 << (xfer->wa->wa_descr->bRPipeBlockSize - 1); + /* Compute the segment size and make sure it is a multiple of + * the maxpktsize (WUSB1.0[8.3.3.1])...not really too much of + * a check (FIXME) */ + maxpktsize = le16_to_cpu(rpipe->descr.wMaxPacketSize); + if (xfer->seg_size < maxpktsize) { + dev_err(dev, "HW BUG? seg_size %zu smaller than maxpktsize " + "%zu\n", xfer->seg_size, maxpktsize); + result = -EINVAL; + goto error; + } + xfer->seg_size = (xfer->seg_size / maxpktsize) * maxpktsize; + xfer->segs = (urb->transfer_buffer_length + xfer->seg_size - 1) + / xfer->seg_size; + if (xfer->segs >= WA_SEGS_MAX) { + dev_err(dev, "BUG? ops, number of segments %d bigger than %d\n", + (int)(urb->transfer_buffer_length / xfer->seg_size), + WA_SEGS_MAX); + result = -EINVAL; + goto error; + } + if (xfer->segs == 0 && *pxfer_type == WA_XFER_TYPE_CTL) + xfer->segs = 1; +error: + d_fnend(3, dev, "(xfer %p [rpipe %p] urb %p) = %d\n", + xfer, rpipe, urb, (int)result); + return result; +} + +/** Fill in the common request header and xfer-type specific data. */ +static void __wa_xfer_setup_hdr0(struct wa_xfer *xfer, + struct wa_xfer_hdr *xfer_hdr0, + enum wa_xfer_type xfer_type, + size_t xfer_hdr_size) +{ + struct wa_rpipe *rpipe = xfer->ep->hcpriv; + + xfer_hdr0 = &xfer->seg[0]->xfer_hdr; + xfer_hdr0->bLength = xfer_hdr_size; + xfer_hdr0->bRequestType = xfer_type; + xfer_hdr0->wRPipe = rpipe->descr.wRPipeIndex; + xfer_hdr0->dwTransferID = wa_xfer_id(xfer); + xfer_hdr0->bTransferSegment = 0; + switch (xfer_type) { + case WA_XFER_TYPE_CTL: { + struct wa_xfer_ctl *xfer_ctl = + container_of(xfer_hdr0, struct wa_xfer_ctl, hdr); + xfer_ctl->bmAttribute = xfer->is_inbound ? 1 : 0; + BUG_ON(xfer->urb->transfer_flags & URB_NO_SETUP_DMA_MAP + && xfer->urb->setup_packet == NULL); + memcpy(&xfer_ctl->baSetupData, xfer->urb->setup_packet, + sizeof(xfer_ctl->baSetupData)); + break; + } + case WA_XFER_TYPE_BI: + break; + case WA_XFER_TYPE_ISO: + printk(KERN_ERR "FIXME: ISOC not implemented\n"); + default: + BUG(); + }; +} + +/* + * Callback for the OUT data phase of the segment request + * + * Check wa_seg_cb(); most comments also apply here because this + * function does almost the same thing and they work closely + * together. + * + * If the seg request has failed but this DTO phase has suceeded, + * wa_seg_cb() has already failed the segment and moved the + * status to WA_SEG_ERROR, so this will go through 'case 0' and + * effectively do nothing. + */ +static void wa_seg_dto_cb(struct urb *urb) +{ + struct wa_seg *seg = urb->context; + struct wa_xfer *xfer = seg->xfer; + struct wahc *wa; + struct device *dev; + struct wa_rpipe *rpipe; + unsigned long flags; + unsigned rpipe_ready = 0; + u8 done = 0; + + d_fnstart(3, NULL, "(urb %p [%d])\n", urb, urb->status); + switch (urb->status) { + case 0: + spin_lock_irqsave(&xfer->lock, flags); + wa = xfer->wa; + dev = &wa->usb_iface->dev; + d_printf(2, dev, "xfer %p#%u: data out done (%d bytes)\n", + xfer, seg->index, urb->actual_length); + if (seg->status < WA_SEG_PENDING) + seg->status = WA_SEG_PENDING; + seg->result = urb->actual_length; + spin_unlock_irqrestore(&xfer->lock, flags); + break; + case -ECONNRESET: /* URB unlinked; no need to do anything */ + case -ENOENT: /* as it was done by the who unlinked us */ + break; + default: /* Other errors ... */ + spin_lock_irqsave(&xfer->lock, flags); + wa = xfer->wa; + dev = &wa->usb_iface->dev; + rpipe = xfer->ep->hcpriv; + if (printk_ratelimit()) + dev_err(dev, "xfer %p#%u: data out error %d\n", + xfer, seg->index, urb->status); + if (edc_inc(&wa->nep_edc, EDC_MAX_ERRORS, + EDC_ERROR_TIMEFRAME)){ + dev_err(dev, "DTO: URB max acceptable errors " + "exceeded, resetting device\n"); + wa_reset_all(wa); + } + if (seg->status != WA_SEG_ERROR) { + seg->status = WA_SEG_ERROR; + seg->result = urb->status; + xfer->segs_done++; + __wa_xfer_abort(xfer); + rpipe_ready = rpipe_avail_inc(rpipe); + done = __wa_xfer_is_done(xfer); + } + spin_unlock_irqrestore(&xfer->lock, flags); + if (done) + wa_xfer_completion(xfer); + if (rpipe_ready) + wa_xfer_delayed_run(rpipe); + } + d_fnend(3, NULL, "(urb %p [%d]) = void\n", urb, urb->status); +} + +/* + * Callback for the segment request + * + * If succesful transition state (unless already transitioned or + * outbound transfer); otherwise, take a note of the error, mark this + * segment done and try completion. + * + * Note we don't access until we are sure that the transfer hasn't + * been cancelled (ECONNRESET, ENOENT), which could mean that + * seg->xfer could be already gone. + * + * We have to check before setting the status to WA_SEG_PENDING + * because sometimes the xfer result callback arrives before this + * callback (geeeeeeze), so it might happen that we are already in + * another state. As well, we don't set it if the transfer is inbound, + * as in that case, wa_seg_dto_cb will do it when the OUT data phase + * finishes. + */ +static void wa_seg_cb(struct urb *urb) +{ + struct wa_seg *seg = urb->context; + struct wa_xfer *xfer = seg->xfer; + struct wahc *wa; + struct device *dev; + struct wa_rpipe *rpipe; + unsigned long flags; + unsigned rpipe_ready; + u8 done = 0; + + d_fnstart(3, NULL, "(urb %p [%d])\n", urb, urb->status); + switch (urb->status) { + case 0: + spin_lock_irqsave(&xfer->lock, flags); + wa = xfer->wa; + dev = &wa->usb_iface->dev; + d_printf(2, dev, "xfer %p#%u: request done\n", + xfer, seg->index); + if (xfer->is_inbound && seg->status < WA_SEG_PENDING) + seg->status = WA_SEG_PENDING; + spin_unlock_irqrestore(&xfer->lock, flags); + break; + case -ECONNRESET: /* URB unlinked; no need to do anything */ + case -ENOENT: /* as it was done by the who unlinked us */ + break; + default: /* Other errors ... */ + spin_lock_irqsave(&xfer->lock, flags); + wa = xfer->wa; + dev = &wa->usb_iface->dev; + rpipe = xfer->ep->hcpriv; + if (printk_ratelimit()) + dev_err(dev, "xfer %p#%u: request error %d\n", + xfer, seg->index, urb->status); + if (edc_inc(&wa->nep_edc, EDC_MAX_ERRORS, + EDC_ERROR_TIMEFRAME)){ + dev_err(dev, "DTO: URB max acceptable errors " + "exceeded, resetting device\n"); + wa_reset_all(wa); + } + usb_unlink_urb(seg->dto_urb); + seg->status = WA_SEG_ERROR; + seg->result = urb->status; + xfer->segs_done++; + __wa_xfer_abort(xfer); + rpipe_ready = rpipe_avail_inc(rpipe); + done = __wa_xfer_is_done(xfer); + spin_unlock_irqrestore(&xfer->lock, flags); + if (done) + wa_xfer_completion(xfer); + if (rpipe_ready) + wa_xfer_delayed_run(rpipe); + } + d_fnend(3, NULL, "(urb %p [%d]) = void\n", urb, urb->status); +} + +/* + * Allocate the segs array and initialize each of them + * + * The segments are freed by wa_xfer_destroy() when the xfer use count + * drops to zero; however, because each segment is given the same life + * cycle as the USB URB it contains, it is actually freed by + * usb_put_urb() on the contained USB URB (twisted, eh?). + */ +static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size) +{ + int result, cnt; + size_t alloc_size = sizeof(*xfer->seg[0]) + - sizeof(xfer->seg[0]->xfer_hdr) + xfer_hdr_size; + struct usb_device *usb_dev = xfer->wa->usb_dev; + const struct usb_endpoint_descriptor *dto_epd = xfer->wa->dto_epd; + struct wa_seg *seg; + size_t buf_itr, buf_size, buf_itr_size; + + result = -ENOMEM; + xfer->seg = kcalloc(xfer->segs, sizeof(xfer->seg[0]), GFP_ATOMIC); + if (xfer->seg == NULL) + goto error_segs_kzalloc; + buf_itr = 0; + buf_size = xfer->urb->transfer_buffer_length; + for (cnt = 0; cnt < xfer->segs; cnt++) { + seg = xfer->seg[cnt] = kzalloc(alloc_size, GFP_ATOMIC); + if (seg == NULL) + goto error_seg_kzalloc; + wa_seg_init(seg); + seg->xfer = xfer; + seg->index = cnt; + usb_fill_bulk_urb(&seg->urb, usb_dev, + usb_sndbulkpipe(usb_dev, + dto_epd->bEndpointAddress), + &seg->xfer_hdr, xfer_hdr_size, + wa_seg_cb, seg); + buf_itr_size = buf_size > xfer->seg_size ? + xfer->seg_size : buf_size; + if (xfer->is_inbound == 0 && buf_size > 0) { + seg->dto_urb = usb_alloc_urb(0, GFP_ATOMIC); + if (seg->dto_urb == NULL) + goto error_dto_alloc; + usb_fill_bulk_urb( + seg->dto_urb, usb_dev, + usb_sndbulkpipe(usb_dev, + dto_epd->bEndpointAddress), + NULL, 0, wa_seg_dto_cb, seg); + if (xfer->is_dma) { + seg->dto_urb->transfer_dma = + xfer->urb->transfer_dma + buf_itr; + seg->dto_urb->transfer_flags |= + URB_NO_TRANSFER_DMA_MAP; + } else + seg->dto_urb->transfer_buffer = + xfer->urb->transfer_buffer + buf_itr; + seg->dto_urb->transfer_buffer_length = buf_itr_size; + } + seg->status = WA_SEG_READY; + buf_itr += buf_itr_size; + buf_size -= buf_itr_size; + } + return 0; + +error_dto_alloc: + kfree(xfer->seg[cnt]); + cnt--; +error_seg_kzalloc: + /* use the fact that cnt is left at were it failed */ + for (; cnt > 0; cnt--) { + if (xfer->is_inbound == 0) + kfree(xfer->seg[cnt]->dto_urb); + kfree(xfer->seg[cnt]); + } +error_segs_kzalloc: + return result; +} + +/* + * Allocates all the stuff needed to submit a transfer + * + * Breaks the whole data buffer in a list of segments, each one has a + * structure allocated to it and linked in xfer->seg[index] + * + * FIXME: merge setup_segs() and the last part of this function, no + * need to do two for loops when we could run everything in a + * single one + */ +static int __wa_xfer_setup(struct wa_xfer *xfer, struct urb *urb) +{ + int result; + struct device *dev = &xfer->wa->usb_iface->dev; + enum wa_xfer_type xfer_type = 0; /* shut up GCC */ + size_t xfer_hdr_size, cnt, transfer_size; + struct wa_xfer_hdr *xfer_hdr0, *xfer_hdr; + + d_fnstart(3, dev, "(xfer %p [rpipe %p] urb %p)\n", + xfer, xfer->ep->hcpriv, urb); + + result = __wa_xfer_setup_sizes(xfer, &xfer_type); + if (result < 0) + goto error_setup_sizes; + xfer_hdr_size = result; + result = __wa_xfer_setup_segs(xfer, xfer_hdr_size); + if (result < 0) { + dev_err(dev, "xfer %p: Failed to allocate %d segments: %d\n", + xfer, xfer->segs, result); + goto error_setup_segs; + } + /* Fill the first header */ + xfer_hdr0 = &xfer->seg[0]->xfer_hdr; + wa_xfer_id_init(xfer); + __wa_xfer_setup_hdr0(xfer, xfer_hdr0, xfer_type, xfer_hdr_size); + + /* Fill remainig headers */ + xfer_hdr = xfer_hdr0; + transfer_size = urb->transfer_buffer_length; + xfer_hdr0->dwTransferLength = transfer_size > xfer->seg_size ? + xfer->seg_size : transfer_size; + transfer_size -= xfer->seg_size; + for (cnt = 1; cnt < xfer->segs; cnt++) { + xfer_hdr = &xfer->seg[cnt]->xfer_hdr; + memcpy(xfer_hdr, xfer_hdr0, xfer_hdr_size); + xfer_hdr->bTransferSegment = cnt; + xfer_hdr->dwTransferLength = transfer_size > xfer->seg_size ? + cpu_to_le32(xfer->seg_size) + : cpu_to_le32(transfer_size); + xfer->seg[cnt]->status = WA_SEG_READY; + transfer_size -= xfer->seg_size; + } + xfer_hdr->bTransferSegment |= 0x80; /* this is the last segment */ + result = 0; +error_setup_segs: +error_setup_sizes: + d_fnend(3, dev, "(xfer %p [rpipe %p] urb %p) = %d\n", + xfer, xfer->ep->hcpriv, urb, result); + return result; +} + +/* + * + * + * rpipe->seg_lock is held! + */ +static int __wa_seg_submit(struct wa_rpipe *rpipe, struct wa_xfer *xfer, + struct wa_seg *seg) +{ + int result; + result = usb_submit_urb(&seg->urb, GFP_ATOMIC); + if (result < 0) { + printk(KERN_ERR "xfer %p#%u: REQ submit failed: %d\n", + xfer, seg->index, result); + goto error_seg_submit; + } + if (seg->dto_urb) { + result = usb_submit_urb(seg->dto_urb, GFP_ATOMIC); + if (result < 0) { + printk(KERN_ERR "xfer %p#%u: DTO submit failed: %d\n", + xfer, seg->index, result); + goto error_dto_submit; + } + } + seg->status = WA_SEG_SUBMITTED; + rpipe_avail_dec(rpipe); + return 0; + +error_dto_submit: + usb_unlink_urb(&seg->urb); +error_seg_submit: + seg->status = WA_SEG_ERROR; + seg->result = result; + return result; +} + +/* + * Execute more queued request segments until the maximum concurrent allowed + * + * The ugly unlock/lock sequence on the error path is needed as the + * xfer->lock normally nests the seg_lock and not viceversa. + * + */ +static void wa_xfer_delayed_run(struct wa_rpipe *rpipe) +{ + int result; + struct device *dev = &rpipe->wa->usb_iface->dev; + struct wa_seg *seg; + struct wa_xfer *xfer; + unsigned long flags; + + d_fnstart(1, dev, "(rpipe #%d) %d segments available\n", + le16_to_cpu(rpipe->descr.wRPipeIndex), + atomic_read(&rpipe->segs_available)); + spin_lock_irqsave(&rpipe->seg_lock, flags); + while (atomic_read(&rpipe->segs_available) > 0 + && !list_empty(&rpipe->seg_list)) { + seg = list_entry(rpipe->seg_list.next, struct wa_seg, + list_node); + list_del(&seg->list_node); + xfer = seg->xfer; + result = __wa_seg_submit(rpipe, xfer, seg); + d_printf(1, dev, "xfer %p#%u submitted from delayed " + "[%d segments available] %d\n", + xfer, seg->index, + atomic_read(&rpipe->segs_available), result); + if (unlikely(result < 0)) { + spin_unlock_irqrestore(&rpipe->seg_lock, flags); + spin_lock_irqsave(&xfer->lock, flags); + __wa_xfer_abort(xfer); + xfer->segs_done++; + spin_unlock_irqrestore(&xfer->lock, flags); + spin_lock_irqsave(&rpipe->seg_lock, flags); + } + } + spin_unlock_irqrestore(&rpipe->seg_lock, flags); + d_fnend(1, dev, "(rpipe #%d) = void, %d segments available\n", + le16_to_cpu(rpipe->descr.wRPipeIndex), + atomic_read(&rpipe->segs_available)); + +} + +/* + * + * xfer->lock is taken + * + * On failure submitting we just stop submitting and return error; + * wa_urb_enqueue_b() will execute the completion path + */ +static int __wa_xfer_submit(struct wa_xfer *xfer) +{ + int result; + struct wahc *wa = xfer->wa; + struct device *dev = &wa->usb_iface->dev; + unsigned cnt; + struct wa_seg *seg; + unsigned long flags; + struct wa_rpipe *rpipe = xfer->ep->hcpriv; + size_t maxrequests = le16_to_cpu(rpipe->descr.wRequests); + u8 available; + u8 empty; + + d_fnstart(3, dev, "(xfer %p [rpipe %p])\n", + xfer, xfer->ep->hcpriv); + + spin_lock_irqsave(&wa->xfer_list_lock, flags); + list_add_tail(&xfer->list_node, &wa->xfer_list); + spin_unlock_irqrestore(&wa->xfer_list_lock, flags); + + BUG_ON(atomic_read(&rpipe->segs_available) > maxrequests); + result = 0; + spin_lock_irqsave(&rpipe->seg_lock, flags); + for (cnt = 0; cnt < xfer->segs; cnt++) { + available = atomic_read(&rpipe->segs_available); + empty = list_empty(&rpipe->seg_list); + seg = xfer->seg[cnt]; + d_printf(2, dev, "xfer %p#%u: available %u empty %u (%s)\n", + xfer, cnt, available, empty, + available == 0 || !empty ? "delayed" : "submitted"); + if (available == 0 || !empty) { + d_printf(1, dev, "xfer %p#%u: delayed\n", xfer, cnt); + seg->status = WA_SEG_DELAYED; + list_add_tail(&seg->list_node, &rpipe->seg_list); + } else { + result = __wa_seg_submit(rpipe, xfer, seg); + if (result < 0) + goto error_seg_submit; + } + xfer->segs_submitted++; + } + spin_unlock_irqrestore(&rpipe->seg_lock, flags); + d_fnend(3, dev, "(xfer %p [rpipe %p]) = void\n", xfer, + xfer->ep->hcpriv); + return result; + +error_seg_submit: + __wa_xfer_abort(xfer); + spin_unlock_irqrestore(&rpipe->seg_lock, flags); + d_fnend(3, dev, "(xfer %p [rpipe %p]) = void\n", xfer, + xfer->ep->hcpriv); + return result; +} + +/* + * Second part of a URB/transfer enqueuement + * + * Assumes this comes from wa_urb_enqueue() [maybe through + * wa_urb_enqueue_run()]. At this point: + * + * xfer->wa filled and refcounted + * xfer->ep filled with rpipe refcounted if + * delayed == 0 + * xfer->urb filled and refcounted (this is the case when called + * from wa_urb_enqueue() as we come from usb_submit_urb() + * and when called by wa_urb_enqueue_run(), as we took an + * extra ref dropped by _run() after we return). + * xfer->gfp filled + * + * If we fail at __wa_xfer_submit(), then we just check if we are done + * and if so, we run the completion procedure. However, if we are not + * yet done, we do nothing and wait for the completion handlers from + * the submitted URBs or from the xfer-result path to kick in. If xfer + * result never kicks in, the xfer will timeout from the USB code and + * dequeue() will be called. + */ +static void wa_urb_enqueue_b(struct wa_xfer *xfer) +{ + int result; + unsigned long flags; + struct urb *urb = xfer->urb; + struct wahc *wa = xfer->wa; + struct wusbhc *wusbhc = wa->wusb; + struct device *dev = &wa->usb_iface->dev; + struct wusb_dev *wusb_dev; + unsigned done; + + d_fnstart(3, dev, "(wa %p urb %p)\n", wa, urb); + result = rpipe_get_by_ep(wa, xfer->ep, urb, xfer->gfp); + if (result < 0) + goto error_rpipe_get; + result = -ENODEV; + /* FIXME: segmentation broken -- kills DWA */ + mutex_lock(&wusbhc->mutex); /* get a WUSB dev */ + if (urb->dev == NULL) + goto error_dev_gone; + wusb_dev = __wusb_dev_get_by_usb_dev(wusbhc, urb->dev); + if (wusb_dev == NULL) { + mutex_unlock(&wusbhc->mutex); + goto error_dev_gone; + } + mutex_unlock(&wusbhc->mutex); + + spin_lock_irqsave(&xfer->lock, flags); + xfer->wusb_dev = wusb_dev; + result = urb->status; + if (urb->status != -EINPROGRESS) + goto error_dequeued; + + result = __wa_xfer_setup(xfer, urb); + if (result < 0) + goto error_xfer_setup; + result = __wa_xfer_submit(xfer); + if (result < 0) + goto error_xfer_submit; + spin_unlock_irqrestore(&xfer->lock, flags); + d_fnend(3, dev, "(wa %p urb %p) = void\n", wa, urb); + return; + + /* this is basically wa_xfer_completion() broken up wa_xfer_giveback() + * does a wa_xfer_put() that will call wa_xfer_destroy() and clean + * upundo setup(). + */ +error_xfer_setup: +error_dequeued: + spin_unlock_irqrestore(&xfer->lock, flags); + /* FIXME: segmentation broken, kills DWA */ + if (wusb_dev) + wusb_dev_put(wusb_dev); +error_dev_gone: + rpipe_put(xfer->ep->hcpriv); +error_rpipe_get: + xfer->result = result; + wa_xfer_giveback(xfer); + d_fnend(3, dev, "(wa %p urb %p) = (void) %d\n", wa, urb, result); + return; + +error_xfer_submit: + done = __wa_xfer_is_done(xfer); + xfer->result = result; + spin_unlock_irqrestore(&xfer->lock, flags); + if (done) + wa_xfer_completion(xfer); + d_fnend(3, dev, "(wa %p urb %p) = (void) %d\n", wa, urb, result); + return; +} + +/* + * Execute the delayed transfers in the Wire Adapter @wa + * + * We need to be careful here, as dequeue() could be called in the + * middle. That's why we do the whole thing under the + * wa->xfer_list_lock. If dequeue() jumps in, it first locks urb->lock + * and then checks the list -- so as we would be acquiring in inverse + * order, we just drop the lock once we have the xfer and reacquire it + * later. + */ +void wa_urb_enqueue_run(struct work_struct *ws) +{ + struct wahc *wa = container_of(ws, struct wahc, xfer_work); + struct device *dev = &wa->usb_iface->dev; + struct wa_xfer *xfer, *next; + struct urb *urb; + + d_fnstart(3, dev, "(wa %p)\n", wa); + spin_lock_irq(&wa->xfer_list_lock); + list_for_each_entry_safe(xfer, next, &wa->xfer_delayed_list, + list_node) { + list_del_init(&xfer->list_node); + spin_unlock_irq(&wa->xfer_list_lock); + + urb = xfer->urb; + wa_urb_enqueue_b(xfer); + usb_put_urb(urb); /* taken when queuing */ + + spin_lock_irq(&wa->xfer_list_lock); + } + spin_unlock_irq(&wa->xfer_list_lock); + d_fnend(3, dev, "(wa %p) = void\n", wa); +} +EXPORT_SYMBOL_GPL(wa_urb_enqueue_run); + +/* + * Submit a transfer to the Wire Adapter in a delayed way + * + * The process of enqueuing involves possible sleeps() [see + * enqueue_b(), for the rpipe_get() and the mutex_lock()]. If we are + * in an atomic section, we defer the enqueue_b() call--else we call direct. + * + * @urb: We own a reference to it done by the HCI Linux USB stack that + * will be given up by calling usb_hcd_giveback_urb() or by + * returning error from this function -> ergo we don't have to + * refcount it. + */ +int wa_urb_enqueue(struct wahc *wa, struct usb_host_endpoint *ep, + struct urb *urb, gfp_t gfp) +{ + int result; + struct device *dev = &wa->usb_iface->dev; + struct wa_xfer *xfer; + unsigned long my_flags; + unsigned cant_sleep = irqs_disabled() | in_atomic(); + + d_fnstart(3, dev, "(wa %p ep %p urb %p [%d] gfp 0x%x)\n", + wa, ep, urb, urb->transfer_buffer_length, gfp); + + if (urb->transfer_buffer == NULL + && !(urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP) + && urb->transfer_buffer_length != 0) { + dev_err(dev, "BUG? urb %p: NULL xfer buffer & NODMA\n", urb); + dump_stack(); + } + + result = -ENOMEM; + xfer = kzalloc(sizeof(*xfer), gfp); + if (xfer == NULL) + goto error_kmalloc; + + result = -ENOENT; + if (urb->status != -EINPROGRESS) /* cancelled */ + goto error_dequeued; /* before starting? */ + wa_xfer_init(xfer); + xfer->wa = wa_get(wa); + xfer->urb = urb; + xfer->gfp = gfp; + xfer->ep = ep; + urb->hcpriv = xfer; + d_printf(2, dev, "xfer %p urb %p pipe 0x%02x [%d bytes] %s %s %s\n", + xfer, urb, urb->pipe, urb->transfer_buffer_length, + urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP ? "dma" : "nodma", + urb->pipe & USB_DIR_IN ? "inbound" : "outbound", + cant_sleep ? "deferred" : "inline"); + if (cant_sleep) { + usb_get_urb(urb); + spin_lock_irqsave(&wa->xfer_list_lock, my_flags); + list_add_tail(&xfer->list_node, &wa->xfer_delayed_list); + spin_unlock_irqrestore(&wa->xfer_list_lock, my_flags); + queue_work(wusbd, &wa->xfer_work); + } else { + wa_urb_enqueue_b(xfer); + } + d_fnend(3, dev, "(wa %p ep %p urb %p [%d] gfp 0x%x) = 0\n", + wa, ep, urb, urb->transfer_buffer_length, gfp); + return 0; + +error_dequeued: + kfree(xfer); +error_kmalloc: + d_fnend(3, dev, "(wa %p ep %p urb %p [%d] gfp 0x%x) = %d\n", + wa, ep, urb, urb->transfer_buffer_length, gfp, result); + return result; +} +EXPORT_SYMBOL_GPL(wa_urb_enqueue); + +/* + * Dequeue a URB and make sure uwb_hcd_giveback_urb() [completion + * handler] is called. + * + * Until a transfer goes successfully through wa_urb_enqueue() it + * needs to be dequeued with completion calling; when stuck in delayed + * or before wa_xfer_setup() is called, we need to do completion. + * + * not setup If there is no hcpriv yet, that means that that enqueue + * still had no time to set the xfer up. Because + * urb->status should be other than -EINPROGRESS, + * enqueue() will catch that and bail out. + * + * If the transfer has gone through setup, we just need to clean it + * up. If it has gone through submit(), we have to abort it [with an + * asynch request] and then make sure we cancel each segment. + * + */ +int wa_urb_dequeue(struct wahc *wa, struct urb *urb) +{ + struct device *dev = &wa->usb_iface->dev; + unsigned long flags, flags2; + struct wa_xfer *xfer; + struct wa_seg *seg; + struct wa_rpipe *rpipe; + unsigned cnt; + unsigned rpipe_ready = 0; + + d_fnstart(3, dev, "(wa %p, urb %p)\n", wa, urb); + + d_printf(1, dev, "xfer %p urb %p: aborting\n", urb->hcpriv, urb); + xfer = urb->hcpriv; + if (xfer == NULL) { + /* NOthing setup yet enqueue will see urb->status != + * -EINPROGRESS (by hcd layer) and bail out with + * error, no need to do completion + */ + BUG_ON(urb->status == -EINPROGRESS); + goto out; + } + spin_lock_irqsave(&xfer->lock, flags); + rpipe = xfer->ep->hcpriv; + /* Check the delayed list -> if there, release and complete */ + spin_lock_irqsave(&wa->xfer_list_lock, flags2); + if (!list_empty(&xfer->list_node) && xfer->seg == NULL) + goto dequeue_delayed; + spin_unlock_irqrestore(&wa->xfer_list_lock, flags2); + if (xfer->seg == NULL) /* still hasn't reached */ + goto out_unlock; /* setup(), enqueue_b() completes */ + /* Ok, the xfer is in flight already, it's been setup and submitted.*/ + __wa_xfer_abort(xfer); + for (cnt = 0; cnt < xfer->segs; cnt++) { + seg = xfer->seg[cnt]; + switch (seg->status) { + case WA_SEG_NOTREADY: + case WA_SEG_READY: + printk(KERN_ERR "xfer %p#%u: dequeue bad state %u\n", + xfer, cnt, seg->status); + WARN_ON(1); + break; + case WA_SEG_DELAYED: + seg->status = WA_SEG_ABORTED; + spin_lock_irqsave(&rpipe->seg_lock, flags2); + list_del(&seg->list_node); + xfer->segs_done++; + rpipe_ready = rpipe_avail_inc(rpipe); + spin_unlock_irqrestore(&rpipe->seg_lock, flags2); + break; + case WA_SEG_SUBMITTED: + seg->status = WA_SEG_ABORTED; + usb_unlink_urb(&seg->urb); + if (xfer->is_inbound == 0) + usb_unlink_urb(seg->dto_urb); + xfer->segs_done++; + rpipe_ready = rpipe_avail_inc(rpipe); + break; + case WA_SEG_PENDING: + seg->status = WA_SEG_ABORTED; + xfer->segs_done++; + rpipe_ready = rpipe_avail_inc(rpipe); + break; + case WA_SEG_DTI_PENDING: + usb_unlink_urb(wa->dti_urb); + seg->status = WA_SEG_ABORTED; + xfer->segs_done++; + rpipe_ready = rpipe_avail_inc(rpipe); + break; + case WA_SEG_DONE: + case WA_SEG_ERROR: + case WA_SEG_ABORTED: + break; + } + } + xfer->result = urb->status; /* -ENOENT or -ECONNRESET */ + __wa_xfer_is_done(xfer); + spin_unlock_irqrestore(&xfer->lock, flags); + wa_xfer_completion(xfer); + if (rpipe_ready) + wa_xfer_delayed_run(rpipe); + d_fnend(3, dev, "(wa %p, urb %p) = 0\n", wa, urb); + return 0; + +out_unlock: + spin_unlock_irqrestore(&xfer->lock, flags); +out: + d_fnend(3, dev, "(wa %p, urb %p) = 0\n", wa, urb); + return 0; + +dequeue_delayed: + list_del_init(&xfer->list_node); + spin_unlock_irqrestore(&wa->xfer_list_lock, flags2); + xfer->result = urb->status; + spin_unlock_irqrestore(&xfer->lock, flags); + wa_xfer_giveback(xfer); + usb_put_urb(urb); /* we got a ref in enqueue() */ + d_fnend(3, dev, "(wa %p, urb %p) = 0\n", wa, urb); + return 0; +} +EXPORT_SYMBOL_GPL(wa_urb_dequeue); + +/* + * Translation from WA status codes (WUSB1.0 Table 8.15) to errno + * codes + * + * Positive errno values are internal inconsistencies and should be + * flagged louder. Negative are to be passed up to the user in the + * normal way. + * + * @status: USB WA status code -- high two bits are stripped. + */ +static int wa_xfer_status_to_errno(u8 status) +{ + int errno; + u8 real_status = status; + static int xlat[] = { + [WA_XFER_STATUS_SUCCESS] = 0, + [WA_XFER_STATUS_HALTED] = -EPIPE, + [WA_XFER_STATUS_DATA_BUFFER_ERROR] = -ENOBUFS, + [WA_XFER_STATUS_BABBLE] = -EOVERFLOW, + [WA_XFER_RESERVED] = EINVAL, + [WA_XFER_STATUS_NOT_FOUND] = 0, + [WA_XFER_STATUS_INSUFFICIENT_RESOURCE] = -ENOMEM, + [WA_XFER_STATUS_TRANSACTION_ERROR] = -EILSEQ, + [WA_XFER_STATUS_ABORTED] = -EINTR, + [WA_XFER_STATUS_RPIPE_NOT_READY] = EINVAL, + [WA_XFER_INVALID_FORMAT] = EINVAL, + [WA_XFER_UNEXPECTED_SEGMENT_NUMBER] = EINVAL, + [WA_XFER_STATUS_RPIPE_TYPE_MISMATCH] = EINVAL, + }; + status &= 0x3f; + + if (status == 0) + return 0; + if (status >= ARRAY_SIZE(xlat)) { + if (printk_ratelimit()) + printk(KERN_ERR "%s(): BUG? " + "Unknown WA transfer status 0x%02x\n", + __func__, real_status); + return -EINVAL; + } + errno = xlat[status]; + if (unlikely(errno > 0)) { + if (printk_ratelimit()) + printk(KERN_ERR "%s(): BUG? " + "Inconsistent WA status: 0x%02x\n", + __func__, real_status); + errno = -errno; + } + return errno; +} + +/* + * Process a xfer result completion message + * + * inbound transfers: need to schedule a DTI read + * + * FIXME: this functio needs to be broken up in parts + */ +static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer) +{ + int result; + struct device *dev = &wa->usb_iface->dev; + unsigned long flags; + u8 seg_idx; + struct wa_seg *seg; + struct wa_rpipe *rpipe; + struct wa_xfer_result *xfer_result = wa->xfer_result; + u8 done = 0; + u8 usb_status; + unsigned rpipe_ready = 0; + + d_fnstart(3, dev, "(wa %p xfer %p)\n", wa, xfer); + spin_lock_irqsave(&xfer->lock, flags); + seg_idx = xfer_result->bTransferSegment & 0x7f; + if (unlikely(seg_idx >= xfer->segs)) + goto error_bad_seg; + seg = xfer->seg[seg_idx]; + rpipe = xfer->ep->hcpriv; + usb_status = xfer_result->bTransferStatus; + d_printf(2, dev, "xfer %p#%u: bTransferStatus 0x%02x (seg %u)\n", + xfer, seg_idx, usb_status, seg->status); + if (seg->status == WA_SEG_ABORTED + || seg->status == WA_SEG_ERROR) /* already handled */ + goto segment_aborted; + if (seg->status == WA_SEG_SUBMITTED) /* ops, got here */ + seg->status = WA_SEG_PENDING; /* before wa_seg{_dto}_cb() */ + if (seg->status != WA_SEG_PENDING) { + if (printk_ratelimit()) + dev_err(dev, "xfer %p#%u: Bad segment state %u\n", + xfer, seg_idx, seg->status); + seg->status = WA_SEG_PENDING; /* workaround/"fix" it */ + } + if (usb_status & 0x80) { + seg->result = wa_xfer_status_to_errno(usb_status); + dev_err(dev, "DTI: xfer %p#%u failed (0x%02x)\n", + xfer, seg->index, usb_status); + goto error_complete; + } + /* FIXME: we ignore warnings, tally them for stats */ + if (usb_status & 0x40) /* Warning?... */ + usb_status = 0; /* ... pass */ + if (xfer->is_inbound) { /* IN data phase: read to buffer */ + seg->status = WA_SEG_DTI_PENDING; + BUG_ON(wa->buf_in_urb->status == -EINPROGRESS); + if (xfer->is_dma) { + wa->buf_in_urb->transfer_dma = + xfer->urb->transfer_dma + + seg_idx * xfer->seg_size; + wa->buf_in_urb->transfer_flags + |= URB_NO_TRANSFER_DMA_MAP; + } else { + wa->buf_in_urb->transfer_buffer = + xfer->urb->transfer_buffer + + seg_idx * xfer->seg_size; + wa->buf_in_urb->transfer_flags + &= ~URB_NO_TRANSFER_DMA_MAP; + } + wa->buf_in_urb->transfer_buffer_length = + le32_to_cpu(xfer_result->dwTransferLength); + wa->buf_in_urb->context = seg; + result = usb_submit_urb(wa->buf_in_urb, GFP_ATOMIC); + if (result < 0) + goto error_submit_buf_in; + } else { + /* OUT data phase, complete it -- */ + seg->status = WA_SEG_DONE; + seg->result = le32_to_cpu(xfer_result->dwTransferLength); + xfer->segs_done++; + rpipe_ready = rpipe_avail_inc(rpipe); + done = __wa_xfer_is_done(xfer); + } + spin_unlock_irqrestore(&xfer->lock, flags); + if (done) + wa_xfer_completion(xfer); + if (rpipe_ready) + wa_xfer_delayed_run(rpipe); + d_fnend(3, dev, "(wa %p xfer %p) = void\n", wa, xfer); + return; + + +error_submit_buf_in: + if (edc_inc(&wa->dti_edc, EDC_MAX_ERRORS, EDC_ERROR_TIMEFRAME)) { + dev_err(dev, "DTI: URB max acceptable errors " + "exceeded, resetting device\n"); + wa_reset_all(wa); + } + if (printk_ratelimit()) + dev_err(dev, "xfer %p#%u: can't submit DTI data phase: %d\n", + xfer, seg_idx, result); + seg->result = result; +error_complete: + seg->status = WA_SEG_ERROR; + xfer->segs_done++; + rpipe_ready = rpipe_avail_inc(rpipe); + __wa_xfer_abort(xfer); + done = __wa_xfer_is_done(xfer); + spin_unlock_irqrestore(&xfer->lock, flags); + if (done) + wa_xfer_completion(xfer); + if (rpipe_ready) + wa_xfer_delayed_run(rpipe); + d_fnend(3, dev, "(wa %p xfer %p) = void [segment/DTI-submit error]\n", + wa, xfer); + return; + + +error_bad_seg: + spin_unlock_irqrestore(&xfer->lock, flags); + wa_urb_dequeue(wa, xfer->urb); + if (printk_ratelimit()) + dev_err(dev, "xfer %p#%u: bad segment\n", xfer, seg_idx); + if (edc_inc(&wa->dti_edc, EDC_MAX_ERRORS, EDC_ERROR_TIMEFRAME)) { + dev_err(dev, "DTI: URB max acceptable errors " + "exceeded, resetting device\n"); + wa_reset_all(wa); + } + d_fnend(3, dev, "(wa %p xfer %p) = void [bad seg]\n", wa, xfer); + return; + + +segment_aborted: + /* nothing to do, as the aborter did the completion */ + spin_unlock_irqrestore(&xfer->lock, flags); + d_fnend(3, dev, "(wa %p xfer %p) = void [segment aborted]\n", + wa, xfer); + return; + +} + +/* + * Callback for the IN data phase + * + * If succesful transition state; otherwise, take a note of the + * error, mark this segment done and try completion. + * + * Note we don't access until we are sure that the transfer hasn't + * been cancelled (ECONNRESET, ENOENT), which could mean that + * seg->xfer could be already gone. + */ +static void wa_buf_in_cb(struct urb *urb) +{ + struct wa_seg *seg = urb->context; + struct wa_xfer *xfer = seg->xfer; + struct wahc *wa; + struct device *dev; + struct wa_rpipe *rpipe; + unsigned rpipe_ready; + unsigned long flags; + u8 done = 0; + + d_fnstart(3, NULL, "(urb %p [%d])\n", urb, urb->status); + switch (urb->status) { + case 0: + spin_lock_irqsave(&xfer->lock, flags); + wa = xfer->wa; + dev = &wa->usb_iface->dev; + rpipe = xfer->ep->hcpriv; + d_printf(2, dev, "xfer %p#%u: data in done (%zu bytes)\n", + xfer, seg->index, (size_t)urb->actual_length); + seg->status = WA_SEG_DONE; + seg->result = urb->actual_length; + xfer->segs_done++; + rpipe_ready = rpipe_avail_inc(rpipe); + done = __wa_xfer_is_done(xfer); + spin_unlock_irqrestore(&xfer->lock, flags); + if (done) + wa_xfer_completion(xfer); + if (rpipe_ready) + wa_xfer_delayed_run(rpipe); + break; + case -ECONNRESET: /* URB unlinked; no need to do anything */ + case -ENOENT: /* as it was done by the who unlinked us */ + break; + default: /* Other errors ... */ + spin_lock_irqsave(&xfer->lock, flags); + wa = xfer->wa; + dev = &wa->usb_iface->dev; + rpipe = xfer->ep->hcpriv; + if (printk_ratelimit()) + dev_err(dev, "xfer %p#%u: data in error %d\n", + xfer, seg->index, urb->status); + if (edc_inc(&wa->nep_edc, EDC_MAX_ERRORS, + EDC_ERROR_TIMEFRAME)){ + dev_err(dev, "DTO: URB max acceptable errors " + "exceeded, resetting device\n"); + wa_reset_all(wa); + } + seg->status = WA_SEG_ERROR; + seg->result = urb->status; + xfer->segs_done++; + rpipe_ready = rpipe_avail_inc(rpipe); + __wa_xfer_abort(xfer); + done = __wa_xfer_is_done(xfer); + spin_unlock_irqrestore(&xfer->lock, flags); + if (done) + wa_xfer_completion(xfer); + if (rpipe_ready) + wa_xfer_delayed_run(rpipe); + } + d_fnend(3, NULL, "(urb %p [%d]) = void\n", urb, urb->status); +} + +/* + * Handle an incoming transfer result buffer + * + * Given a transfer result buffer, it completes the transfer (possibly + * scheduling and buffer in read) and then resubmits the DTI URB for a + * new transfer result read. + * + * + * The xfer_result DTI URB state machine + * + * States: OFF | RXR (Read-Xfer-Result) | RBI (Read-Buffer-In) + * + * We start in OFF mode, the first xfer_result notification [through + * wa_handle_notif_xfer()] moves us to RXR by posting the DTI-URB to + * read. + * + * We receive a buffer -- if it is not a xfer_result, we complain and + * repost the DTI-URB. If it is a xfer_result then do the xfer seg + * request accounting. If it is an IN segment, we move to RBI and post + * a BUF-IN-URB to the right buffer. The BUF-IN-URB callback will + * repost the DTI-URB and move to RXR state. if there was no IN + * segment, it will repost the DTI-URB. + * + * We go back to OFF when we detect a ENOENT or ESHUTDOWN (or too many + * errors) in the URBs. + */ +static void wa_xfer_result_cb(struct urb *urb) +{ + int result; + struct wahc *wa = urb->context; + struct device *dev = &wa->usb_iface->dev; + struct wa_xfer_result *xfer_result; + u32 xfer_id; + struct wa_xfer *xfer; + u8 usb_status; + + d_fnstart(3, dev, "(%p)\n", wa); + BUG_ON(wa->dti_urb != urb); + switch (wa->dti_urb->status) { + case 0: + /* We have a xfer result buffer; check it */ + d_printf(2, dev, "DTI: xfer result %d bytes at %p\n", + urb->actual_length, urb->transfer_buffer); + d_dump(3, dev, urb->transfer_buffer, urb->actual_length); + if (wa->dti_urb->actual_length != sizeof(*xfer_result)) { + dev_err(dev, "DTI Error: xfer result--bad size " + "xfer result (%d bytes vs %zu needed)\n", + urb->actual_length, sizeof(*xfer_result)); + break; + } + xfer_result = wa->xfer_result; + if (xfer_result->hdr.bLength != sizeof(*xfer_result)) { + dev_err(dev, "DTI Error: xfer result--" + "bad header length %u\n", + xfer_result->hdr.bLength); + break; + } + if (xfer_result->hdr.bNotifyType != WA_XFER_RESULT) { + dev_err(dev, "DTI Error: xfer result--" + "bad header type 0x%02x\n", + xfer_result->hdr.bNotifyType); + break; + } + usb_status = xfer_result->bTransferStatus & 0x3f; + if (usb_status == WA_XFER_STATUS_ABORTED + || usb_status == WA_XFER_STATUS_NOT_FOUND) + /* taken care of already */ + break; + xfer_id = xfer_result->dwTransferID; + xfer = wa_xfer_get_by_id(wa, xfer_id); + if (xfer == NULL) { + /* FIXME: transaction might have been cancelled */ + dev_err(dev, "DTI Error: xfer result--" + "unknown xfer 0x%08x (status 0x%02x)\n", + xfer_id, usb_status); + break; + } + wa_xfer_result_chew(wa, xfer); + wa_xfer_put(xfer); + break; + case -ENOENT: /* (we killed the URB)...so, no broadcast */ + case -ESHUTDOWN: /* going away! */ + dev_dbg(dev, "DTI: going down! %d\n", urb->status); + goto out; + default: + /* Unknown error */ + if (edc_inc(&wa->dti_edc, EDC_MAX_ERRORS, + EDC_ERROR_TIMEFRAME)) { + dev_err(dev, "DTI: URB max acceptable errors " + "exceeded, resetting device\n"); + wa_reset_all(wa); + goto out; + } + if (printk_ratelimit()) + dev_err(dev, "DTI: URB error %d\n", urb->status); + break; + } + /* Resubmit the DTI URB */ + result = usb_submit_urb(wa->dti_urb, GFP_ATOMIC); + if (result < 0) { + dev_err(dev, "DTI Error: Could not submit DTI URB (%d), " + "resetting\n", result); + wa_reset_all(wa); + } +out: + d_fnend(3, dev, "(%p) = void\n", wa); + return; +} + +/* + * Transfer complete notification + * + * Called from the notif.c code. We get a notification on EP2 saying + * that some endpoint has some transfer result data available. We are + * about to read it. + * + * To speed up things, we always have a URB reading the DTI URB; we + * don't really set it up and start it until the first xfer complete + * notification arrives, which is what we do here. + * + * Follow up in wa_xfer_result_cb(), as that's where the whole state + * machine starts. + * + * So here we just initialize the DTI URB for reading transfer result + * notifications and also the buffer-in URB, for reading buffers. Then + * we just submit the DTI URB. + * + * @wa shall be referenced + */ +void wa_handle_notif_xfer(struct wahc *wa, struct wa_notif_hdr *notif_hdr) +{ + int result; + struct device *dev = &wa->usb_iface->dev; + struct wa_notif_xfer *notif_xfer; + const struct usb_endpoint_descriptor *dti_epd = wa->dti_epd; + + d_fnstart(4, dev, "(%p, %p)\n", wa, notif_hdr); + notif_xfer = container_of(notif_hdr, struct wa_notif_xfer, hdr); + BUG_ON(notif_hdr->bNotifyType != WA_NOTIF_TRANSFER); + + if ((0x80 | notif_xfer->bEndpoint) != dti_epd->bEndpointAddress) { + /* FIXME: hardcoded limitation, adapt */ + dev_err(dev, "BUG: DTI ep is %u, not %u (hack me)\n", + notif_xfer->bEndpoint, dti_epd->bEndpointAddress); + goto error; + } + if (wa->dti_urb != NULL) /* DTI URB already started */ + goto out; + + wa->dti_urb = usb_alloc_urb(0, GFP_KERNEL); + if (wa->dti_urb == NULL) { + dev_err(dev, "Can't allocate DTI URB\n"); + goto error_dti_urb_alloc; + } + usb_fill_bulk_urb( + wa->dti_urb, wa->usb_dev, + usb_rcvbulkpipe(wa->usb_dev, 0x80 | notif_xfer->bEndpoint), + wa->xfer_result, wa->xfer_result_size, + wa_xfer_result_cb, wa); + + wa->buf_in_urb = usb_alloc_urb(0, GFP_KERNEL); + if (wa->buf_in_urb == NULL) { + dev_err(dev, "Can't allocate BUF-IN URB\n"); + goto error_buf_in_urb_alloc; + } + usb_fill_bulk_urb( + wa->buf_in_urb, wa->usb_dev, + usb_rcvbulkpipe(wa->usb_dev, 0x80 | notif_xfer->bEndpoint), + NULL, 0, wa_buf_in_cb, wa); + result = usb_submit_urb(wa->dti_urb, GFP_KERNEL); + if (result < 0) { + dev_err(dev, "DTI Error: Could not submit DTI URB (%d), " + "resetting\n", result); + goto error_dti_urb_submit; + } +out: + d_fnend(4, dev, "(%p, %p) = void\n", wa, notif_hdr); + return; + +error_dti_urb_submit: + usb_put_urb(wa->buf_in_urb); +error_buf_in_urb_alloc: + usb_put_urb(wa->dti_urb); + wa->dti_urb = NULL; +error_dti_urb_alloc: +error: + wa_reset_all(wa); + d_fnend(4, dev, "(%p, %p) = void\n", wa, notif_hdr); + return; +} diff --git a/drivers/usb/wusbcore/wusbhc.c b/drivers/usb/wusbcore/wusbhc.c new file mode 100644 index 000000000000..07c63a31c799 --- /dev/null +++ b/drivers/usb/wusbcore/wusbhc.c @@ -0,0 +1,418 @@ +/* + * Wireless USB Host Controller + * sysfs glue, wusbcore module support and life cycle management + * + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * Creation/destruction of wusbhc is split in two parts; that that + * doesn't require the HCD to be added (wusbhc_{create,destroy}) and + * the one that requires (phase B, wusbhc_b_{create,destroy}). + * + * This is so because usb_add_hcd() will start the HC, and thus, all + * the HC specific stuff has to be already initialiazed (like sysfs + * thingies). + */ +#include <linux/device.h> +#include <linux/module.h> +#include "wusbhc.h" + +/** + * Extract the wusbhc that corresponds to a USB Host Controller class device + * + * WARNING! Apply only if @dev is that of a + * wusbhc.usb_hcd.self->class_dev; otherwise, you loose. + */ +static struct wusbhc *usbhc_dev_to_wusbhc(struct device *dev) +{ + struct usb_bus *usb_bus = dev_get_drvdata(dev); + struct usb_hcd *usb_hcd = bus_to_hcd(usb_bus); + return usb_hcd_to_wusbhc(usb_hcd); +} + +/* + * Show & store the current WUSB trust timeout + * + * We don't do locking--it is an 'atomic' value. + * + * The units that we store/show are always MILLISECONDS. However, the + * value of trust_timeout is jiffies. + */ +static ssize_t wusb_trust_timeout_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct wusbhc *wusbhc = usbhc_dev_to_wusbhc(dev); + + return scnprintf(buf, PAGE_SIZE, "%u\n", wusbhc->trust_timeout); +} + +static ssize_t wusb_trust_timeout_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct wusbhc *wusbhc = usbhc_dev_to_wusbhc(dev); + ssize_t result = -ENOSYS; + unsigned trust_timeout; + + result = sscanf(buf, "%u", &trust_timeout); + if (result != 1) { + result = -EINVAL; + goto out; + } + /* FIXME: maybe we should check for range validity? */ + wusbhc->trust_timeout = trust_timeout; + cancel_delayed_work(&wusbhc->keep_alive_timer); + flush_workqueue(wusbd); + queue_delayed_work(wusbd, &wusbhc->keep_alive_timer, + (trust_timeout * CONFIG_HZ)/1000/2); +out: + return result < 0 ? result : size; +} +static DEVICE_ATTR(wusb_trust_timeout, 0644, wusb_trust_timeout_show, + wusb_trust_timeout_store); + +/* + * Show & store the current WUSB CHID + */ +static ssize_t wusb_chid_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct wusbhc *wusbhc = usbhc_dev_to_wusbhc(dev); + ssize_t result = 0; + + if (wusbhc->wuie_host_info != NULL) + result += ckhdid_printf(buf, PAGE_SIZE, + &wusbhc->wuie_host_info->CHID); + return result; +} + +/* + * Store a new CHID + * + * This will (FIXME) trigger many changes. + * + * - Send an all zeros CHID and it will stop the controller + * - Send a non-zero CHID and it will start it + * (unless it was started, it will just change the CHID, + * diconnecting all devices first). + * + * So first we scan the MMC we are sent and then we act on it. We + * read it in the same format as we print it, an ASCII string of 16 + * hex bytes. + * + * See wusbhc_chid_set() for more info. + */ +static ssize_t wusb_chid_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct wusbhc *wusbhc = usbhc_dev_to_wusbhc(dev); + struct wusb_ckhdid chid; + ssize_t result; + + result = sscanf(buf, + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx\n", + &chid.data[0] , &chid.data[1] , + &chid.data[2] , &chid.data[3] , + &chid.data[4] , &chid.data[5] , + &chid.data[6] , &chid.data[7] , + &chid.data[8] , &chid.data[9] , + &chid.data[10], &chid.data[11], + &chid.data[12], &chid.data[13], + &chid.data[14], &chid.data[15]); + if (result != 16) { + dev_err(dev, "Unrecognized CHID (need 16 8-bit hex digits): " + "%d\n", (int)result); + return -EINVAL; + } + result = wusbhc_chid_set(wusbhc, &chid); + return result < 0 ? result : size; +} +static DEVICE_ATTR(wusb_chid, 0644, wusb_chid_show, wusb_chid_store); + +/* Group all the WUSBHC attributes */ +static struct attribute *wusbhc_attrs[] = { + &dev_attr_wusb_trust_timeout.attr, + &dev_attr_wusb_chid.attr, + NULL, +}; + +static struct attribute_group wusbhc_attr_group = { + .name = NULL, /* we want them in the same directory */ + .attrs = wusbhc_attrs, +}; + +/* + * Create a wusbhc instance + * + * NOTEs: + * + * - assumes *wusbhc has been zeroed and wusbhc->usb_hcd has been + * initialized but not added. + * + * - fill out ports_max, mmcies_max and mmcie_{add,rm} before calling. + * + * - fill out wusbhc->uwb_rc and refcount it before calling + * - fill out the wusbhc->sec_modes array + */ +int wusbhc_create(struct wusbhc *wusbhc) +{ + int result = 0; + + wusbhc->trust_timeout = WUSB_TRUST_TIMEOUT_MS; + mutex_init(&wusbhc->mutex); + result = wusbhc_mmcie_create(wusbhc); + if (result < 0) + goto error_mmcie_create; + result = wusbhc_devconnect_create(wusbhc); + if (result < 0) + goto error_devconnect_create; + result = wusbhc_rh_create(wusbhc); + if (result < 0) + goto error_rh_create; + result = wusbhc_sec_create(wusbhc); + if (result < 0) + goto error_sec_create; + return 0; + +error_sec_create: + wusbhc_rh_destroy(wusbhc); +error_rh_create: + wusbhc_devconnect_destroy(wusbhc); +error_devconnect_create: + wusbhc_mmcie_destroy(wusbhc); +error_mmcie_create: + return result; +} +EXPORT_SYMBOL_GPL(wusbhc_create); + +static inline struct kobject *wusbhc_kobj(struct wusbhc *wusbhc) +{ + return &wusbhc->usb_hcd.self.controller->kobj; +} + +/* + * Phase B of a wusbhc instance creation + * + * Creates fields that depend on wusbhc->usb_hcd having been + * added. This is where we create the sysfs files in + * /sys/class/usb_host/usb_hostX/. + * + * NOTE: Assumes wusbhc->usb_hcd has been already added by the upper + * layer (hwahc or whci) + */ +int wusbhc_b_create(struct wusbhc *wusbhc) +{ + int result = 0; + struct device *dev = wusbhc->usb_hcd.self.controller; + + result = sysfs_create_group(wusbhc_kobj(wusbhc), &wusbhc_attr_group); + if (result < 0) { + dev_err(dev, "Cannot register WUSBHC attributes: %d\n", result); + goto error_create_attr_group; + } + + result = wusbhc_pal_register(wusbhc); + if (result < 0) + goto error_pal_register; + return 0; + +error_pal_register: + sysfs_remove_group(wusbhc_kobj(wusbhc), &wusbhc_attr_group); +error_create_attr_group: + return result; +} +EXPORT_SYMBOL_GPL(wusbhc_b_create); + +void wusbhc_b_destroy(struct wusbhc *wusbhc) +{ + wusbhc_pal_unregister(wusbhc); + sysfs_remove_group(wusbhc_kobj(wusbhc), &wusbhc_attr_group); +} +EXPORT_SYMBOL_GPL(wusbhc_b_destroy); + +void wusbhc_destroy(struct wusbhc *wusbhc) +{ + wusbhc_sec_destroy(wusbhc); + wusbhc_rh_destroy(wusbhc); + wusbhc_devconnect_destroy(wusbhc); + wusbhc_mmcie_destroy(wusbhc); +} +EXPORT_SYMBOL_GPL(wusbhc_destroy); + +struct workqueue_struct *wusbd; +EXPORT_SYMBOL_GPL(wusbd); + +/* + * WUSB Cluster ID allocation map + * + * Each WUSB bus in a channel is identified with a Cluster Id in the + * unauth address pace (WUSB1.0[4.3]). We take the range 0xe0 to 0xff + * (that's space for 31 WUSB controllers, as 0xff can't be taken). We + * start taking from 0xff, 0xfe, 0xfd... (hence the += or -= 0xff). + * + * For each one we taken, we pin it in the bitap + */ +#define CLUSTER_IDS 32 +static DECLARE_BITMAP(wusb_cluster_id_table, CLUSTER_IDS); +static DEFINE_SPINLOCK(wusb_cluster_ids_lock); + +/* + * Get a WUSB Cluster ID + * + * Need to release with wusb_cluster_id_put() when done w/ it. + */ +/* FIXME: coordinate with the choose_addres() from the USB stack */ +/* we want to leave the top of the 128 range for cluster addresses and + * the bottom for device addresses (as we map them one on one with + * ports). */ +u8 wusb_cluster_id_get(void) +{ + u8 id; + spin_lock(&wusb_cluster_ids_lock); + id = find_first_zero_bit(wusb_cluster_id_table, CLUSTER_IDS); + if (id > CLUSTER_IDS) { + id = 0; + goto out; + } + set_bit(id, wusb_cluster_id_table); + id = (u8) 0xff - id; +out: + spin_unlock(&wusb_cluster_ids_lock); + return id; + +} +EXPORT_SYMBOL_GPL(wusb_cluster_id_get); + +/* + * Release a WUSB Cluster ID + * + * Obtained it with wusb_cluster_id_get() + */ +void wusb_cluster_id_put(u8 id) +{ + id = 0xff - id; + BUG_ON(id >= CLUSTER_IDS); + spin_lock(&wusb_cluster_ids_lock); + WARN_ON(!test_bit(id, wusb_cluster_id_table)); + clear_bit(id, wusb_cluster_id_table); + spin_unlock(&wusb_cluster_ids_lock); +} +EXPORT_SYMBOL_GPL(wusb_cluster_id_put); + +/** + * wusbhc_giveback_urb - return an URB to the USB core + * @wusbhc: the host controller the URB is from. + * @urb: the URB. + * @status: the URB's status. + * + * Return an URB to the USB core doing some additional WUSB specific + * processing. + * + * - After a successful transfer, update the trust timeout timestamp + * for the WUSB device. + * + * - [WUSB] sections 4.13 and 7.5.1 specifies the stop retrasmittion + * condition for the WCONNECTACK_IE is that the host has observed + * the associated device responding to a control transfer. + */ +void wusbhc_giveback_urb(struct wusbhc *wusbhc, struct urb *urb, int status) +{ + struct wusb_dev *wusb_dev = __wusb_dev_get_by_usb_dev(wusbhc, urb->dev); + + if (status == 0) { + wusb_dev->entry_ts = jiffies; + + /* wusbhc_devconnect_acked() can't be called from from + atomic context so defer it to a work queue. */ + if (!list_empty(&wusb_dev->cack_node)) + queue_work(wusbd, &wusb_dev->devconnect_acked_work); + } + + usb_hcd_giveback_urb(&wusbhc->usb_hcd, urb, status); +} +EXPORT_SYMBOL_GPL(wusbhc_giveback_urb); + +/** + * wusbhc_reset_all - reset the HC hardware + * @wusbhc: the host controller to reset. + * + * Request a full hardware reset of the chip. This will also reset + * the radio controller and any other PALs. + */ +void wusbhc_reset_all(struct wusbhc *wusbhc) +{ + uwb_rc_reset_all(wusbhc->uwb_rc); +} +EXPORT_SYMBOL_GPL(wusbhc_reset_all); + +static struct notifier_block wusb_usb_notifier = { + .notifier_call = wusb_usb_ncb, + .priority = INT_MAX /* Need to be called first of all */ +}; + +static int __init wusbcore_init(void) +{ + int result; + result = wusb_crypto_init(); + if (result < 0) + goto error_crypto_init; + /* WQ is singlethread because we need to serialize notifications */ + wusbd = create_singlethread_workqueue("wusbd"); + if (wusbd == NULL) { + result = -ENOMEM; + printk(KERN_ERR "WUSB-core: Cannot create wusbd workqueue\n"); + goto error_wusbd_create; + } + usb_register_notify(&wusb_usb_notifier); + bitmap_zero(wusb_cluster_id_table, CLUSTER_IDS); + set_bit(0, wusb_cluster_id_table); /* reserve Cluster ID 0xff */ + return 0; + +error_wusbd_create: + wusb_crypto_exit(); +error_crypto_init: + return result; + +} +module_init(wusbcore_init); + +static void __exit wusbcore_exit(void) +{ + clear_bit(0, wusb_cluster_id_table); + if (!bitmap_empty(wusb_cluster_id_table, CLUSTER_IDS)) { + char buf[256]; + bitmap_scnprintf(buf, sizeof(buf), wusb_cluster_id_table, + CLUSTER_IDS); + printk(KERN_ERR "BUG: WUSB Cluster IDs not released " + "on exit: %s\n", buf); + WARN_ON(1); + } + usb_unregister_notify(&wusb_usb_notifier); + destroy_workqueue(wusbd); + wusb_crypto_exit(); +} +module_exit(wusbcore_exit); + +MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>"); +MODULE_DESCRIPTION("Wireless USB core"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/wusbcore/wusbhc.h b/drivers/usb/wusbcore/wusbhc.h new file mode 100644 index 000000000000..d0c132434f1b --- /dev/null +++ b/drivers/usb/wusbcore/wusbhc.h @@ -0,0 +1,495 @@ +/* + * Wireless USB Host Controller + * Common infrastructure for WHCI and HWA WUSB-HC drivers + * + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * This driver implements parts common to all Wireless USB Host + * Controllers (struct wusbhc, embedding a struct usb_hcd) and is used + * by: + * + * - hwahc: HWA, USB-dongle that implements a Wireless USB host + * controller, (Wireless USB 1.0 Host-Wire-Adapter specification). + * + * - whci: WHCI, a PCI card with a wireless host controller + * (Wireless Host Controller Interface 1.0 specification). + * + * Check out the Design-overview.txt file in the source documentation + * for other details on the implementation. + * + * Main blocks: + * + * rh Root Hub emulation (part of the HCD glue) + * + * devconnect Handle all the issues related to device connection, + * authentication, disconnection, timeout, reseting, + * keepalives, etc. + * + * mmc MMC IE broadcasting handling + * + * A host controller driver just initializes its stuff and as part of + * that, creates a 'struct wusbhc' instance that handles all the + * common WUSB mechanisms. Links in the function ops that are specific + * to it and then registers the host controller. Ready to run. + */ + +#ifndef __WUSBHC_H__ +#define __WUSBHC_H__ + +#include <linux/usb.h> +#include <linux/list.h> +#include <linux/mutex.h> +#include <linux/kref.h> +#include <linux/workqueue.h> +/* FIXME: Yes, I know: BAD--it's not my fault the USB HC iface is not + * public */ +#include <linux/../../drivers/usb/core/hcd.h> +#include <linux/uwb.h> +#include <linux/usb/wusb.h> + + +/** + * Wireless USB device + * + * Describe a WUSB device connected to the cluster. This struct + * belongs to the 'struct wusb_port' it is attached to and it is + * responsible for putting and clearing the pointer to it. + * + * Note this "complements" the 'struct usb_device' that the usb_hcd + * keeps for each connected USB device. However, it extends some + * information that is not available (there is no hcpriv ptr in it!) + * *and* most importantly, it's life cycle is different. It is created + * as soon as we get a DN_Connect (connect request notification) from + * the device through the WUSB host controller; the USB stack doesn't + * create the device until we authenticate it. FIXME: this will + * change. + * + * @bos: This is allocated when the BOS descriptors are read from + * the device and freed upon the wusb_dev struct dying. + * @wusb_cap_descr: points into @bos, and has been verified to be size + * safe. + */ +struct wusb_dev { + struct kref refcnt; + struct wusbhc *wusbhc; + struct list_head cack_node; /* Connect-Ack list */ + u8 port_idx; + u8 addr; + u8 beacon_type:4; + struct usb_encryption_descriptor ccm1_etd; + struct wusb_ckhdid cdid; + unsigned long entry_ts; + struct usb_bos_descriptor *bos; + struct usb_wireless_cap_descriptor *wusb_cap_descr; + struct uwb_mas_bm availability; + struct work_struct devconnect_acked_work; + struct urb *set_gtk_urb; + struct usb_ctrlrequest *set_gtk_req; + struct usb_device *usb_dev; +}; + +#define WUSB_DEV_ADDR_UNAUTH 0x80 + +static inline void wusb_dev_init(struct wusb_dev *wusb_dev) +{ + kref_init(&wusb_dev->refcnt); + /* no need to init the cack_node */ +} + +extern void wusb_dev_destroy(struct kref *_wusb_dev); + +static inline struct wusb_dev *wusb_dev_get(struct wusb_dev *wusb_dev) +{ + kref_get(&wusb_dev->refcnt); + return wusb_dev; +} + +static inline void wusb_dev_put(struct wusb_dev *wusb_dev) +{ + kref_put(&wusb_dev->refcnt, wusb_dev_destroy); +} + +/** + * Wireless USB Host Controlller root hub "fake" ports + * (state and device information) + * + * Wireless USB is wireless, so there are no ports; but we + * fake'em. Each RC can connect a max of devices at the same time + * (given in the Wireless Adapter descriptor, bNumPorts or WHCI's + * caps), referred to in wusbhc->ports_max. + * + * See rh.c for more information. + * + * The @status and @change use the same bits as in USB2.0[11.24.2.7], + * so we don't have to do much when getting the port's status. + * + * WUSB1.0[7.1], USB2.0[11.24.2.7.1,fig 11-10], + * include/linux/usb_ch9.h (#define USB_PORT_STAT_*) + */ +struct wusb_port { + u16 status; + u16 change; + struct wusb_dev *wusb_dev; /* connected device's info */ + unsigned reset_count; + u32 ptk_tkid; +}; + +/** + * WUSB Host Controller specifics + * + * All fields that are common to all Wireless USB controller types + * (HWA and WHCI) are grouped here. Host Controller + * functions/operations that only deal with general Wireless USB HC + * issues use this data type to refer to the host. + * + * @usb_hcd Instantiation of a USB host controller + * (initialized by upper layer [HWA=HC or WHCI]. + * + * @dev Device that implements this; initialized by the + * upper layer (HWA-HC, WHCI...); this device should + * have a refcount. + * + * @trust_timeout After this time without hearing for device + * activity, we consider the device gone and we have to + * re-authenticate. + * + * Can be accessed w/o locking--however, read to a + * local variable then use. + * + * @chid WUSB Cluster Host ID: this is supposed to be a + * unique value that doesn't change across reboots (so + * that your devices do not require re-association). + * + * Read/Write protected by @mutex + * + * @dev_info This array has ports_max elements. It is used to + * give the HC information about the WUSB devices (see + * 'struct wusb_dev_info'). + * + * For HWA we need to allocate it in heap; for WHCI it + * needs to be permanently mapped, so we keep it for + * both and make it easy. Call wusbhc->dev_info_set() + * to update an entry. + * + * @ports_max Number of simultaneous device connections (fake + * ports) this HC will take. Read-only. + * + * @port Array of port status for each fake root port. Guaranteed to + * always be the same lenght during device existence + * [this allows for some unlocked but referenced reading]. + * + * @mmcies_max Max number of Information Elements this HC can send + * in its MMC. Read-only. + * + * @mmcie_add HC specific operation (WHCI or HWA) for adding an + * MMCIE. + * + * @mmcie_rm HC specific operation (WHCI or HWA) for removing an + * MMCIE. + * + * @enc_types Array which describes the encryptions methods + * supported by the host as described in WUSB1.0 -- + * one entry per supported method. As of WUSB1.0 there + * is only four methods, we make space for eight just in + * case they decide to add some more (and pray they do + * it in sequential order). if 'enc_types[enc_method] + * != 0', then it is supported by the host. enc_method + * is USB_ENC_TYPE*. + * + * @set_ptk: Set the PTK and enable encryption for a device. Or, if + * the supplied key is NULL, disable encryption for that + * device. + * + * @set_gtk: Set the GTK to be used for all future broadcast packets + * (i.e., MMCs). With some hardware, setting the GTK may start + * MMC transmission. + * + * NOTE: + * + * - If wusb_dev->usb_dev is not NULL, then usb_dev is valid + * (wusb_dev has a refcount on it). Likewise, if usb_dev->wusb_dev + * is not NULL, usb_dev->wusb_dev is valid (usb_dev keeps a + * refcount on it). + * + * Most of the times when you need to use it, it will be non-NULL, + * so there is no real need to check for it (wusb_dev will + * dissapear before usb_dev). + * + * - The following fields need to be filled out before calling + * wusbhc_create(): ports_max, mmcies_max, mmcie_{add,rm}. + * + * - there is no wusbhc_init() method, we do everything in + * wusbhc_create(). + * + * - Creation is done in two phases, wusbhc_create() and + * wusbhc_create_b(); b are the parts that need to be called after + * calling usb_hcd_add(&wusbhc->usb_hcd). + */ +struct wusbhc { + struct usb_hcd usb_hcd; /* HAS TO BE 1st */ + struct device *dev; + struct uwb_rc *uwb_rc; + struct uwb_pal pal; + + unsigned trust_timeout; /* in jiffies */ + struct wuie_host_info *wuie_host_info; /* Includes CHID */ + + struct mutex mutex; /* locks everything else */ + u16 cluster_id; /* Wireless USB Cluster ID */ + struct wusb_port *port; /* Fake port status handling */ + struct wusb_dev_info *dev_info; /* for Set Device Info mgmt */ + u8 ports_max; + unsigned active:1; /* currently xmit'ing MMCs */ + struct wuie_keep_alive keep_alive_ie; /* protected by mutex */ + struct delayed_work keep_alive_timer; + struct list_head cack_list; /* Connect acknowledging */ + size_t cack_count; /* protected by 'mutex' */ + struct wuie_connect_ack cack_ie; + struct uwb_rsv *rsv; /* cluster bandwidth reservation */ + + struct mutex mmcie_mutex; /* MMC WUIE handling */ + struct wuie_hdr **mmcie; /* WUIE array */ + u8 mmcies_max; + /* FIXME: make wusbhc_ops? */ + int (*start)(struct wusbhc *wusbhc); + void (*stop)(struct wusbhc *wusbhc); + int (*mmcie_add)(struct wusbhc *wusbhc, u8 interval, u8 repeat_cnt, + u8 handle, struct wuie_hdr *wuie); + int (*mmcie_rm)(struct wusbhc *wusbhc, u8 handle); + int (*dev_info_set)(struct wusbhc *, struct wusb_dev *wusb_dev); + int (*bwa_set)(struct wusbhc *wusbhc, s8 stream_index, + const struct uwb_mas_bm *); + int (*set_ptk)(struct wusbhc *wusbhc, u8 port_idx, + u32 tkid, const void *key, size_t key_size); + int (*set_gtk)(struct wusbhc *wusbhc, + u32 tkid, const void *key, size_t key_size); + int (*set_num_dnts)(struct wusbhc *wusbhc, u8 interval, u8 slots); + + struct { + struct usb_key_descriptor descr; + u8 data[16]; /* GTK key data */ + } __attribute__((packed)) gtk; + u8 gtk_index; + u32 gtk_tkid; + struct work_struct gtk_rekey_done_work; + int pending_set_gtks; + + struct usb_encryption_descriptor *ccm1_etd; +}; + +#define usb_hcd_to_wusbhc(u) container_of((u), struct wusbhc, usb_hcd) + + +extern int wusbhc_create(struct wusbhc *); +extern int wusbhc_b_create(struct wusbhc *); +extern void wusbhc_b_destroy(struct wusbhc *); +extern void wusbhc_destroy(struct wusbhc *); +extern int wusb_dev_sysfs_add(struct wusbhc *, struct usb_device *, + struct wusb_dev *); +extern void wusb_dev_sysfs_rm(struct wusb_dev *); +extern int wusbhc_sec_create(struct wusbhc *); +extern int wusbhc_sec_start(struct wusbhc *); +extern void wusbhc_sec_stop(struct wusbhc *); +extern void wusbhc_sec_destroy(struct wusbhc *); +extern void wusbhc_giveback_urb(struct wusbhc *wusbhc, struct urb *urb, + int status); +void wusbhc_reset_all(struct wusbhc *wusbhc); + +int wusbhc_pal_register(struct wusbhc *wusbhc); +void wusbhc_pal_unregister(struct wusbhc *wusbhc); + +/* + * Return @usb_dev's @usb_hcd (properly referenced) or NULL if gone + * + * @usb_dev: USB device, UNLOCKED and referenced (or otherwise, safe ptr) + * + * This is a safe assumption as @usb_dev->bus is referenced all the + * time during the @usb_dev life cycle. + */ +static inline struct usb_hcd *usb_hcd_get_by_usb_dev(struct usb_device *usb_dev) +{ + struct usb_hcd *usb_hcd; + usb_hcd = container_of(usb_dev->bus, struct usb_hcd, self); + return usb_get_hcd(usb_hcd); +} + +/* + * Increment the reference count on a wusbhc. + * + * @wusbhc's life cycle is identical to that of the underlying usb_hcd. + */ +static inline struct wusbhc *wusbhc_get(struct wusbhc *wusbhc) +{ + return usb_get_hcd(&wusbhc->usb_hcd) ? wusbhc : NULL; +} + +/* + * Return the wusbhc associated to a @usb_dev + * + * @usb_dev: USB device, UNLOCKED and referenced (or otherwise, safe ptr) + * + * @returns: wusbhc for @usb_dev; NULL if the @usb_dev is being torn down. + * WARNING: referenced at the usb_hcd level, unlocked + * + * FIXME: move offline + */ +static inline struct wusbhc *wusbhc_get_by_usb_dev(struct usb_device *usb_dev) +{ + struct wusbhc *wusbhc = NULL; + struct usb_hcd *usb_hcd; + if (usb_dev->devnum > 1 && !usb_dev->wusb) { + /* but root hubs */ + dev_err(&usb_dev->dev, "devnum %d wusb %d\n", usb_dev->devnum, + usb_dev->wusb); + BUG_ON(usb_dev->devnum > 1 && !usb_dev->wusb); + } + usb_hcd = usb_hcd_get_by_usb_dev(usb_dev); + if (usb_hcd == NULL) + return NULL; + BUG_ON(usb_hcd->wireless == 0); + return wusbhc = usb_hcd_to_wusbhc(usb_hcd); +} + + +static inline void wusbhc_put(struct wusbhc *wusbhc) +{ + usb_put_hcd(&wusbhc->usb_hcd); +} + +int wusbhc_start(struct wusbhc *wusbhc, const struct wusb_ckhdid *chid); +void wusbhc_stop(struct wusbhc *wusbhc); +extern int wusbhc_chid_set(struct wusbhc *, const struct wusb_ckhdid *); + +/* Device connect handling */ +extern int wusbhc_devconnect_create(struct wusbhc *); +extern void wusbhc_devconnect_destroy(struct wusbhc *); +extern int wusbhc_devconnect_start(struct wusbhc *wusbhc, + const struct wusb_ckhdid *chid); +extern void wusbhc_devconnect_stop(struct wusbhc *wusbhc); +extern int wusbhc_devconnect_auth(struct wusbhc *, u8); +extern void wusbhc_handle_dn(struct wusbhc *, u8 srcaddr, + struct wusb_dn_hdr *dn_hdr, size_t size); +extern int wusbhc_dev_reset(struct wusbhc *wusbhc, u8 port); +extern void __wusbhc_dev_disable(struct wusbhc *wusbhc, u8 port); +extern int wusb_usb_ncb(struct notifier_block *nb, unsigned long val, + void *priv); +extern int wusb_set_dev_addr(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev, + u8 addr); + +/* Wireless USB fake Root Hub methods */ +extern int wusbhc_rh_create(struct wusbhc *); +extern void wusbhc_rh_destroy(struct wusbhc *); + +extern int wusbhc_rh_status_data(struct usb_hcd *, char *); +extern int wusbhc_rh_control(struct usb_hcd *, u16, u16, u16, char *, u16); +extern int wusbhc_rh_suspend(struct usb_hcd *); +extern int wusbhc_rh_resume(struct usb_hcd *); +extern int wusbhc_rh_start_port_reset(struct usb_hcd *, unsigned); + +/* MMC handling */ +extern int wusbhc_mmcie_create(struct wusbhc *); +extern void wusbhc_mmcie_destroy(struct wusbhc *); +extern int wusbhc_mmcie_set(struct wusbhc *, u8 interval, u8 repeat_cnt, + struct wuie_hdr *); +extern void wusbhc_mmcie_rm(struct wusbhc *, struct wuie_hdr *); + +/* Bandwidth reservation */ +int wusbhc_rsv_establish(struct wusbhc *wusbhc); +void wusbhc_rsv_terminate(struct wusbhc *wusbhc); + +/* + * I've always said + * I wanted a wedding in a church... + * + * but lately I've been thinking about + * the Botanical Gardens. + * + * We could do it by the tulips. + * It'll be beautiful + * + * --Security! + */ +extern int wusb_dev_sec_add(struct wusbhc *, struct usb_device *, + struct wusb_dev *); +extern void wusb_dev_sec_rm(struct wusb_dev *) ; +extern int wusb_dev_4way_handshake(struct wusbhc *, struct wusb_dev *, + struct wusb_ckhdid *ck); +void wusbhc_gtk_rekey(struct wusbhc *wusbhc); + + +/* WUSB Cluster ID handling */ +extern u8 wusb_cluster_id_get(void); +extern void wusb_cluster_id_put(u8); + +/* + * wusb_port_by_idx - return the port associated to a zero-based port index + * + * NOTE: valid without locking as long as wusbhc is referenced (as the + * number of ports doesn't change). The data pointed to has to + * be verified though :) + */ +static inline struct wusb_port *wusb_port_by_idx(struct wusbhc *wusbhc, + u8 port_idx) +{ + return &wusbhc->port[port_idx]; +} + +/* + * wusb_port_no_to_idx - Convert port number (per usb_dev->portnum) to + * a port_idx. + * + * USB stack USB ports are 1 based!! + * + * NOTE: only valid for WUSB devices!!! + */ +static inline u8 wusb_port_no_to_idx(u8 port_no) +{ + return port_no - 1; +} + +extern struct wusb_dev *__wusb_dev_get_by_usb_dev(struct wusbhc *, + struct usb_device *); + +/* + * Return a referenced wusb_dev given a @usb_dev + * + * Returns NULL if the usb_dev is being torn down. + * + * FIXME: move offline + */ +static inline +struct wusb_dev *wusb_dev_get_by_usb_dev(struct usb_device *usb_dev) +{ + struct wusbhc *wusbhc; + struct wusb_dev *wusb_dev; + wusbhc = wusbhc_get_by_usb_dev(usb_dev); + if (wusbhc == NULL) + return NULL; + mutex_lock(&wusbhc->mutex); + wusb_dev = __wusb_dev_get_by_usb_dev(wusbhc, usb_dev); + mutex_unlock(&wusbhc->mutex); + wusbhc_put(wusbhc); + return wusb_dev; +} + +/* Misc */ + +extern struct workqueue_struct *wusbd; +#endif /* #ifndef __WUSBHC_H__ */ |