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-rw-r--r--drivers/net/irda/Kconfig15
-rw-r--r--drivers/net/irda/Makefile1
-rw-r--r--drivers/net/irda/ali-ircc.c106
-rw-r--r--drivers/net/irda/irda-usb.c327
-rw-r--r--drivers/net/irda/irda-usb.h10
-rw-r--r--drivers/net/irda/mcs7780.c1009
-rw-r--r--drivers/net/irda/mcs7780.h167
-rw-r--r--drivers/net/irda/stir4200.c38
-rw-r--r--drivers/net/irda/vlsi_ir.c2
9 files changed, 1403 insertions, 272 deletions
diff --git a/drivers/net/irda/Kconfig b/drivers/net/irda/Kconfig
index cff8598aa800..d2ce4896abff 100644
--- a/drivers/net/irda/Kconfig
+++ b/drivers/net/irda/Kconfig
@@ -417,5 +417,20 @@ config PXA_FICP
available capabilities may vary from one PXA2xx target to
another.
+config MCS_FIR
+ tristate "MosChip MCS7780 IrDA-USB dongle"
+ depends on IRDA && USB && EXPERIMENTAL
+ help
+ Say Y or M here if you want to build support for the MosChip
+ MCS7780 IrDA-USB bridge device driver.
+
+ USB bridge based on the MosChip MCS7780 don't conform to the
+ IrDA-USB device class specification, and therefore need their
+ own specific driver. Those dongles support SIR and FIR (4Mbps)
+ speeds.
+
+ To compile it as a module, choose M here: the module will be called
+ mcs7780.
+
endmenu
diff --git a/drivers/net/irda/Makefile b/drivers/net/irda/Makefile
index c1ce2398efea..5be09f1b9ee2 100644
--- a/drivers/net/irda/Makefile
+++ b/drivers/net/irda/Makefile
@@ -19,6 +19,7 @@ obj-$(CONFIG_ALI_FIR) += ali-ircc.o
obj-$(CONFIG_VLSI_FIR) += vlsi_ir.o
obj-$(CONFIG_VIA_FIR) += via-ircc.o
obj-$(CONFIG_PXA_FICP) += pxaficp_ir.o
+obj-$(CONFIG_MCS_FIR) += mcs7780.o
# Old dongle drivers for old SIR drivers
obj-$(CONFIG_ESI_DONGLE_OLD) += esi.o
obj-$(CONFIG_TEKRAM_DONGLE_OLD) += tekram.o
diff --git a/drivers/net/irda/ali-ircc.c b/drivers/net/irda/ali-ircc.c
index 2e7882eb7d6f..bf1fca5a3fa0 100644
--- a/drivers/net/irda/ali-ircc.c
+++ b/drivers/net/irda/ali-ircc.c
@@ -34,14 +34,12 @@
#include <linux/rtnetlink.h>
#include <linux/serial_reg.h>
#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
#include <asm/io.h>
#include <asm/dma.h>
#include <asm/byteorder.h>
-#include <linux/pm.h>
-#include <linux/pm_legacy.h>
-
#include <net/irda/wrapper.h>
#include <net/irda/irda.h>
#include <net/irda/irda_device.h>
@@ -51,7 +49,19 @@
#define CHIP_IO_EXTENT 8
#define BROKEN_DONGLE_ID
-static char *driver_name = "ali-ircc";
+#define ALI_IRCC_DRIVER_NAME "ali-ircc"
+
+/* Power Management */
+static int ali_ircc_suspend(struct platform_device *dev, pm_message_t state);
+static int ali_ircc_resume(struct platform_device *dev);
+
+static struct platform_driver ali_ircc_driver = {
+ .suspend = ali_ircc_suspend,
+ .resume = ali_ircc_resume,
+ .driver = {
+ .name = ALI_IRCC_DRIVER_NAME,
+ },
+};
/* Module parameters */
static int qos_mtt_bits = 0x07; /* 1 ms or more */
@@ -97,10 +107,7 @@ static int ali_ircc_is_receiving(struct ali_ircc_cb *self);
static int ali_ircc_net_open(struct net_device *dev);
static int ali_ircc_net_close(struct net_device *dev);
static int ali_ircc_net_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
-static int ali_ircc_pmproc(struct pm_dev *dev, pm_request_t rqst, void *data);
static void ali_ircc_change_speed(struct ali_ircc_cb *self, __u32 baud);
-static void ali_ircc_suspend(struct ali_ircc_cb *self);
-static void ali_ircc_wakeup(struct ali_ircc_cb *self);
static struct net_device_stats *ali_ircc_net_get_stats(struct net_device *dev);
/* SIR function */
@@ -145,6 +152,14 @@ static int __init ali_ircc_init(void)
int i = 0;
IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__);
+
+ ret = platform_driver_register(&ali_ircc_driver);
+ if (ret) {
+ IRDA_ERROR("%s, Can't register driver!\n",
+ ALI_IRCC_DRIVER_NAME);
+ return ret;
+ }
+
/* Probe for all the ALi chipsets we know about */
for (chip= chips; chip->name; chip++, i++)
@@ -214,6 +229,10 @@ static int __init ali_ircc_init(void)
}
IRDA_DEBUG(2, "%s(), ----------------- End -----------------\n", __FUNCTION__);
+
+ if (ret)
+ platform_driver_unregister(&ali_ircc_driver);
+
return ret;
}
@@ -228,14 +247,14 @@ static void __exit ali_ircc_cleanup(void)
int i;
IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__);
-
- pm_unregister_all(ali_ircc_pmproc);
for (i=0; i < 4; i++) {
if (dev_self[i])
ali_ircc_close(dev_self[i]);
}
+ platform_driver_unregister(&ali_ircc_driver);
+
IRDA_DEBUG(2, "%s(), ----------------- End -----------------\n", __FUNCTION__);
}
@@ -249,7 +268,6 @@ static int ali_ircc_open(int i, chipio_t *info)
{
struct net_device *dev;
struct ali_ircc_cb *self;
- struct pm_dev *pmdev;
int dongle_id;
int err;
@@ -284,7 +302,8 @@ static int ali_ircc_open(int i, chipio_t *info)
self->io.fifo_size = 16; /* SIR: 16, FIR: 32 Benjamin 2000/11/1 */
/* Reserve the ioports that we need */
- if (!request_region(self->io.fir_base, self->io.fir_ext, driver_name)) {
+ if (!request_region(self->io.fir_base, self->io.fir_ext,
+ ALI_IRCC_DRIVER_NAME)) {
IRDA_WARNING("%s(), can't get iobase of 0x%03x\n", __FUNCTION__,
self->io.fir_base);
err = -ENODEV;
@@ -354,13 +373,10 @@ static int ali_ircc_open(int i, chipio_t *info)
/* Check dongle id */
dongle_id = ali_ircc_read_dongle_id(i, info);
- IRDA_MESSAGE("%s(), %s, Found dongle: %s\n", __FUNCTION__, driver_name, dongle_types[dongle_id]);
+ IRDA_MESSAGE("%s(), %s, Found dongle: %s\n", __FUNCTION__,
+ ALI_IRCC_DRIVER_NAME, dongle_types[dongle_id]);
self->io.dongle_id = dongle_id;
-
- pmdev = pm_register(PM_SYS_DEV, PM_SYS_IRDA, ali_ircc_pmproc);
- if (pmdev)
- pmdev->data = self;
IRDA_DEBUG(2, "%s(), ----------------- End -----------------\n", __FUNCTION__);
@@ -548,12 +564,11 @@ static int ali_ircc_setup(chipio_t *info)
/* Should be 0x00 in the M1535/M1535D */
if(version != 0x00)
{
- IRDA_ERROR("%s, Wrong chip version %02x\n", driver_name, version);
+ IRDA_ERROR("%s, Wrong chip version %02x\n",
+ ALI_IRCC_DRIVER_NAME, version);
return -1;
}
- // IRDA_MESSAGE("%s, Found chip at base=0x%03x\n", driver_name, info->cfg_base);
-
/* Set FIR FIFO Threshold Register */
switch_bank(iobase, BANK1);
outb(RX_FIFO_Threshold, iobase+FIR_FIFO_TR);
@@ -583,7 +598,8 @@ static int ali_ircc_setup(chipio_t *info)
/* Switch to SIR space */
FIR2SIR(iobase);
- IRDA_MESSAGE("%s, driver loaded (Benjamin Kong)\n", driver_name);
+ IRDA_MESSAGE("%s, driver loaded (Benjamin Kong)\n",
+ ALI_IRCC_DRIVER_NAME);
/* Enable receive interrupts */
// outb(UART_IER_RDI, iobase+UART_IER); //benjamin 2000/11/23 01:25PM
@@ -647,7 +663,8 @@ static irqreturn_t ali_ircc_interrupt(int irq, void *dev_id,
IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__);
if (!dev) {
- IRDA_WARNING("%s: irq %d for unknown device.\n", driver_name, irq);
+ IRDA_WARNING("%s: irq %d for unknown device.\n",
+ ALI_IRCC_DRIVER_NAME, irq);
return IRQ_NONE;
}
@@ -1328,7 +1345,8 @@ static int ali_ircc_net_open(struct net_device *dev)
/* Request IRQ and install Interrupt Handler */
if (request_irq(self->io.irq, ali_ircc_interrupt, 0, dev->name, dev))
{
- IRDA_WARNING("%s, unable to allocate irq=%d\n", driver_name,
+ IRDA_WARNING("%s, unable to allocate irq=%d\n",
+ ALI_IRCC_DRIVER_NAME,
self->io.irq);
return -EAGAIN;
}
@@ -1338,7 +1356,8 @@ static int ali_ircc_net_open(struct net_device *dev)
* failure.
*/
if (request_dma(self->io.dma, dev->name)) {
- IRDA_WARNING("%s, unable to allocate dma=%d\n", driver_name,
+ IRDA_WARNING("%s, unable to allocate dma=%d\n",
+ ALI_IRCC_DRIVER_NAME,
self->io.dma);
free_irq(self->io.irq, self);
return -EAGAIN;
@@ -2108,61 +2127,38 @@ static struct net_device_stats *ali_ircc_net_get_stats(struct net_device *dev)
return &self->stats;
}
-static void ali_ircc_suspend(struct ali_ircc_cb *self)
+static int ali_ircc_suspend(struct platform_device *dev, pm_message_t state)
{
- IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__ );
+ struct ali_ircc_cb *self = platform_get_drvdata(dev);
- IRDA_MESSAGE("%s, Suspending\n", driver_name);
+ IRDA_MESSAGE("%s, Suspending\n", ALI_IRCC_DRIVER_NAME);
if (self->io.suspended)
- return;
+ return 0;
ali_ircc_net_close(self->netdev);
self->io.suspended = 1;
- IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__ );
+ return 0;
}
-static void ali_ircc_wakeup(struct ali_ircc_cb *self)
+static int ali_ircc_resume(struct platform_device *dev)
{
- IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__ );
+ struct ali_ircc_cb *self = platform_get_drvdata(dev);
if (!self->io.suspended)
- return;
+ return 0;
ali_ircc_net_open(self->netdev);
- IRDA_MESSAGE("%s, Waking up\n", driver_name);
+ IRDA_MESSAGE("%s, Waking up\n", ALI_IRCC_DRIVER_NAME);
self->io.suspended = 0;
-
- IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__ );
-}
-static int ali_ircc_pmproc(struct pm_dev *dev, pm_request_t rqst, void *data)
-{
- struct ali_ircc_cb *self = (struct ali_ircc_cb*) dev->data;
-
- IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__ );
-
- if (self) {
- switch (rqst) {
- case PM_SUSPEND:
- ali_ircc_suspend(self);
- break;
- case PM_RESUME:
- ali_ircc_wakeup(self);
- break;
- }
- }
-
- IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__ );
-
return 0;
}
-
/* ALi Chip Function */
static void SetCOMInterrupts(struct ali_ircc_cb *self , unsigned char enable)
diff --git a/drivers/net/irda/irda-usb.c b/drivers/net/irda/irda-usb.c
index cd87593e4e8a..844fa74ac9ec 100644
--- a/drivers/net/irda/irda-usb.c
+++ b/drivers/net/irda/irda-usb.c
@@ -83,9 +83,9 @@ static struct usb_device_id dongles[] = {
/* Extended Systems, Inc., XTNDAccess IrDA USB (ESI-9685) */
{ USB_DEVICE(0x8e9, 0x100), .driver_info = IUC_SPEED_BUG | IUC_NO_WINDOW },
/* SigmaTel STIR4210/4220/4116 USB IrDA (VFIR) Bridge */
- { USB_DEVICE(0x66f, 0x4210), .driver_info = IUC_STIR_4210 | IUC_SPEED_BUG },
- { USB_DEVICE(0x66f, 0x4220), .driver_info = IUC_STIR_4210 | IUC_SPEED_BUG },
- { USB_DEVICE(0x66f, 0x4116), .driver_info = IUC_STIR_4210 | IUC_SPEED_BUG },
+ { USB_DEVICE(0x66f, 0x4210), .driver_info = IUC_STIR421X | IUC_SPEED_BUG },
+ { USB_DEVICE(0x66f, 0x4220), .driver_info = IUC_STIR421X | IUC_SPEED_BUG },
+ { USB_DEVICE(0x66f, 0x4116), .driver_info = IUC_STIR421X | IUC_SPEED_BUG },
{ .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS |
USB_DEVICE_ID_MATCH_INT_SUBCLASS,
.bInterfaceClass = USB_CLASS_APP_SPEC,
@@ -154,7 +154,7 @@ static void irda_usb_build_header(struct irda_usb_cb *self,
* and if either speed or xbofs (or both) needs
* to be changed.
*/
- if (self->capability & IUC_STIR_4210 &&
+ if (self->capability & IUC_STIR421X &&
((self->new_speed != -1) || (self->new_xbofs != -1))) {
/* With STIR421x, speed and xBOFs must be set at the same
@@ -318,7 +318,7 @@ static void irda_usb_change_speed_xbofs(struct irda_usb_cb *self)
/* Set the new speed and xbofs in this fake frame */
irda_usb_build_header(self, frame, 1);
- if ( self->capability & IUC_STIR_4210 ) {
+ if (self->capability & IUC_STIR421X) {
if (frame[0] == 0) return ; // do nothing if no change
frame[1] = 0; // other parameters don't change here
frame[2] = 0;
@@ -455,7 +455,7 @@ static int irda_usb_hard_xmit(struct sk_buff *skb, struct net_device *netdev)
/* Change setting for next frame */
- if ( self->capability & IUC_STIR_4210 ) {
+ if (self->capability & IUC_STIR421X) {
__u8 turnaround_time;
__u8* frame;
turnaround_time = get_turnaround_time( skb );
@@ -897,10 +897,13 @@ static void irda_usb_receive(struct urb *urb, struct pt_regs *regs)
docopy = (urb->actual_length < IRDA_RX_COPY_THRESHOLD);
/* Allocate a new skb */
- if ( self->capability & IUC_STIR_4210 )
- newskb = dev_alloc_skb(docopy ? urb->actual_length : IRDA_SKB_MAX_MTU + USB_IRDA_SIGMATEL_HEADER);
+ if (self->capability & IUC_STIR421X)
+ newskb = dev_alloc_skb(docopy ? urb->actual_length :
+ IRDA_SKB_MAX_MTU +
+ USB_IRDA_STIR421X_HEADER);
else
- newskb = dev_alloc_skb(docopy ? urb->actual_length : IRDA_SKB_MAX_MTU);
+ newskb = dev_alloc_skb(docopy ? urb->actual_length :
+ IRDA_SKB_MAX_MTU);
if (!newskb) {
self->stats.rx_dropped++;
@@ -1022,188 +1025,140 @@ static int irda_usb_is_receiving(struct irda_usb_cb *self)
return 0; /* For now */
}
-
-#define STIR421X_PATCH_PRODUCT_VERSION_STR "Product Version: "
-#define STIR421X_PATCH_COMPONENT_VERSION_STR "Component Version: "
-#define STIR421X_PATCH_DATA_TAG_STR "STMP"
-#define STIR421X_PATCH_FILE_VERSION_MAX_OFFSET 512 /* version info is before here */
-#define STIR421X_PATCH_FILE_IMAGE_MAX_OFFSET 512 /* patch image starts before here */
-#define STIR421X_PATCH_FILE_END_OF_HEADER_TAG 0x1A /* marks end of patch file header (PC DOS text file EOF character) */
+#define STIR421X_PATCH_PRODUCT_VER "Product Version: "
+#define STIR421X_PATCH_STMP_TAG "STMP"
+#define STIR421X_PATCH_CODE_OFFSET 512 /* patch image starts before here */
+/* marks end of patch file header (PC DOS text file EOF character) */
+#define STIR421X_PATCH_END_OF_HDR_TAG 0x1A
+#define STIR421X_PATCH_BLOCK_SIZE 1023
/*
- * Known firmware patches for STIR421x dongles
+ * Function stir421x_fwupload (struct irda_usb_cb *self,
+ * unsigned char *patch,
+ * const unsigned int patch_len)
+ *
+ * Upload firmware code to SigmaTel 421X IRDA-USB dongle
*/
-static char * stir421x_patches[] = {
- "42101001.sb",
- "42101002.sb",
-};
-
-static int stir421x_get_patch_version(unsigned char * patch, const unsigned long patch_len)
+static int stir421x_fw_upload(struct irda_usb_cb *self,
+ unsigned char *patch,
+ const unsigned int patch_len)
{
- unsigned int version_offset;
- unsigned long version_major, version_minor, version_build;
- unsigned char * version_start;
- int version_found = 0;
-
- for (version_offset = 0;
- version_offset < STIR421X_PATCH_FILE_END_OF_HEADER_TAG;
- version_offset++) {
- if (!memcmp(patch + version_offset,
- STIR421X_PATCH_PRODUCT_VERSION_STR,
- sizeof(STIR421X_PATCH_PRODUCT_VERSION_STR) - 1)) {
- version_found = 1;
- version_start = patch +
- version_offset +
- sizeof(STIR421X_PATCH_PRODUCT_VERSION_STR) - 1;
- break;
- }
+ int ret = -ENOMEM;
+ int actual_len = 0;
+ unsigned int i;
+ unsigned int block_size = 0;
+ unsigned char *patch_block;
+
+ patch_block = kzalloc(STIR421X_PATCH_BLOCK_SIZE, GFP_KERNEL);
+ if (patch_block == NULL)
+ return -ENOMEM;
+
+ /* break up patch into 1023-byte sections */
+ for (i = 0; i < patch_len; i += block_size) {
+ block_size = patch_len - i;
+
+ if (block_size > STIR421X_PATCH_BLOCK_SIZE)
+ block_size = STIR421X_PATCH_BLOCK_SIZE;
+
+ /* upload the patch section */
+ memcpy(patch_block, patch + i, block_size);
+
+ ret = usb_bulk_msg(self->usbdev,
+ usb_sndbulkpipe(self->usbdev,
+ self->bulk_out_ep),
+ patch_block, block_size,
+ &actual_len, msecs_to_jiffies(500));
+ IRDA_DEBUG(3,"%s(): Bulk send %u bytes, ret=%d\n",
+ __FUNCTION__, actual_len, ret);
+
+ if (ret < 0)
+ break;
}
- /* We couldn't find a product version on this patch */
- if (!version_found)
- return -EINVAL;
-
- /* Let's check if the product version is dotted */
- if (version_start[3] != '.' ||
- version_start[7] != '.')
- return -EINVAL;
-
- version_major = simple_strtoul(version_start, NULL, 10);
- version_minor = simple_strtoul(version_start + 4, NULL, 10);
- version_build = simple_strtoul(version_start + 8, NULL, 10);
-
- IRDA_DEBUG(2, "%s(), Major: %ld Minor: %ld Build: %ld\n",
- __FUNCTION__,
- version_major, version_minor, version_build);
-
- return (((version_major) << 12) +
- ((version_minor) << 8) +
- ((version_build / 10) << 4) +
- (version_build % 10));
-
-}
-
-
-static int stir421x_upload_patch (struct irda_usb_cb *self,
- unsigned char * patch,
- const unsigned int patch_len)
-{
- int retval = 0;
- int actual_len;
- unsigned int i = 0, download_amount = 0;
- unsigned char * patch_chunk;
-
- IRDA_DEBUG (2, "%s(), Uploading STIR421x Patch\n", __FUNCTION__);
-
- patch_chunk = kzalloc(STIR421X_MAX_PATCH_DOWNLOAD_SIZE, GFP_KERNEL);
- if (patch_chunk == NULL)
- return -ENOMEM;
-
- /* break up patch into 1023-byte sections */
- for (i = 0; retval >= 0 && i < patch_len; i += download_amount) {
- download_amount = patch_len - i;
- if (download_amount > STIR421X_MAX_PATCH_DOWNLOAD_SIZE)
- download_amount = STIR421X_MAX_PATCH_DOWNLOAD_SIZE;
-
- /* download the patch section */
- memcpy(patch_chunk, patch + i, download_amount);
-
- retval = usb_bulk_msg (self->usbdev,
- usb_sndbulkpipe (self->usbdev,
- self->bulk_out_ep),
- patch_chunk, download_amount,
- &actual_len, msecs_to_jiffies (500));
- IRDA_DEBUG (2, "%s(), Sent %u bytes\n", __FUNCTION__,
- actual_len);
- if (retval == 0)
- mdelay(10);
- }
-
- kfree(patch_chunk);
-
- if (i != patch_len) {
- IRDA_ERROR ("%s(), Pushed %d bytes (!= patch_len (%d))\n",
- __FUNCTION__, i, patch_len);
- retval = -EIO;
- }
-
- if (retval < 0)
- /* todo - mark device as not ready */
- IRDA_ERROR ("%s(), STIR421x patch upload failed (%d)\n",
- __FUNCTION__, retval);
-
- return retval;
-}
+ kfree(patch_block);
+ return ret;
+ }
+/*
+ * Function stir421x_patch_device(struct irda_usb_cb *self)
+ *
+ * Get a firmware code from userspase using hotplug request_firmware() call
+ */
static int stir421x_patch_device(struct irda_usb_cb *self)
{
- unsigned int i, patch_found = 0, data_found = 0, data_offset;
- int patch_version, ret = 0;
- const struct firmware *fw_entry;
-
- for (i = 0; i < ARRAY_SIZE(stir421x_patches); i++) {
- if(request_firmware(&fw_entry, stir421x_patches[i], &self->usbdev->dev) != 0) {
- IRDA_ERROR( "%s(), Patch %s is not available\n", __FUNCTION__, stir421x_patches[i]);
- continue;
- }
-
- /* We found a patch from userspace */
- patch_version = stir421x_get_patch_version (fw_entry->data, fw_entry->size);
-
- if (patch_version < 0) {
- /* Couldn't fetch a version, let's move on to the next file */
- IRDA_ERROR("%s(), version parsing failed\n", __FUNCTION__);
- ret = patch_version;
- release_firmware(fw_entry);
- continue;
- }
-
- if (patch_version != self->usbdev->descriptor.bcdDevice) {
- /* Patch version and device don't match */
- IRDA_ERROR ("%s(), wrong patch version (%d <-> %d)\n",
- __FUNCTION__,
- patch_version, self->usbdev->descriptor.bcdDevice);
- ret = -EINVAL;
- release_firmware(fw_entry);
- continue;
- }
-
- /* If we're here, we've found a correct patch */
- patch_found = 1;
- break;
-
- }
-
- /* We couldn't find a valid firmware, let's leave */
- if (!patch_found)
- return ret;
-
- /* The actual image starts after the "STMP" keyword */
- for (data_offset = 0; data_offset < STIR421X_PATCH_FILE_IMAGE_MAX_OFFSET; data_offset++) {
- if (!memcmp(fw_entry->data + data_offset,
- STIR421X_PATCH_DATA_TAG_STR,
- sizeof(STIR421X_PATCH_FILE_IMAGE_MAX_OFFSET))) {
- IRDA_DEBUG(2, "%s(), found patch data for STIR421x at offset %d\n",
- __FUNCTION__, data_offset);
- data_found = 1;
- break;
- }
- }
-
- /* We couldn't find "STMP" from the header */
- if (!data_found)
- return -EINVAL;
-
- /* Let's upload the patch to the target */
- ret = stir421x_upload_patch(self,
- &fw_entry->data[data_offset + sizeof(STIR421X_PATCH_FILE_IMAGE_MAX_OFFSET)],
- fw_entry->size - (data_offset + sizeof(STIR421X_PATCH_FILE_IMAGE_MAX_OFFSET)));
-
- release_firmware(fw_entry);
-
- return ret;
-
+ unsigned int i;
+ int ret;
+ char stir421x_fw_name[11];
+ const struct firmware *fw;
+ unsigned char *fw_version_ptr; /* pointer to version string */
+ unsigned long fw_version = 0;
+
+ /*
+ * Known firmware patch file names for STIR421x dongles
+ * are "42101001.sb" or "42101002.sb"
+ */
+ sprintf(stir421x_fw_name, "4210%4X.sb",
+ self->usbdev->descriptor.bcdDevice);
+ ret = request_firmware(&fw, stir421x_fw_name, &self->usbdev->dev);
+ if (ret < 0)
+ return ret;
+
+ /* We get a patch from userspace */
+ IRDA_MESSAGE("%s(): Received firmware %s (%u bytes)\n",
+ __FUNCTION__, stir421x_fw_name, fw->size);
+
+ ret = -EINVAL;
+
+ /* Get the bcd product version */
+ if (!memcmp(fw->data, STIR421X_PATCH_PRODUCT_VER,
+ sizeof(STIR421X_PATCH_PRODUCT_VER) - 1)) {
+ fw_version_ptr = fw->data +
+ sizeof(STIR421X_PATCH_PRODUCT_VER) - 1;
+
+ /* Let's check if the product version is dotted */
+ if (fw_version_ptr[3] == '.' &&
+ fw_version_ptr[7] == '.') {
+ unsigned long major, minor, build;
+ major = simple_strtoul(fw_version_ptr, NULL, 10);
+ minor = simple_strtoul(fw_version_ptr + 4, NULL, 10);
+ build = simple_strtoul(fw_version_ptr + 8, NULL, 10);
+
+ fw_version = (major << 12)
+ + (minor << 8)
+ + ((build / 10) << 4)
+ + (build % 10);
+
+ IRDA_DEBUG(3, "%s(): Firmware Product version %ld\n",
+ __FUNCTION__, fw_version);
+ }
+ }
+
+ if (self->usbdev->descriptor.bcdDevice == fw_version) {
+ /*
+ * If we're here, we've found a correct patch
+ * The actual image starts after the "STMP" keyword
+ * so forward to the firmware header tag
+ */
+ for (i = 0; (fw->data[i] != STIR421X_PATCH_END_OF_HDR_TAG)
+ && (i < fw->size); i++) ;
+ /* here we check for the out of buffer case */
+ if ((STIR421X_PATCH_END_OF_HDR_TAG == fw->data[i])
+ && (i < STIR421X_PATCH_CODE_OFFSET)) {
+ if (!memcmp(fw->data + i + 1, STIR421X_PATCH_STMP_TAG,
+ sizeof(STIR421X_PATCH_STMP_TAG) - 1)) {
+
+ /* We can upload the patch to the target */
+ i += sizeof(STIR421X_PATCH_STMP_TAG);
+ ret = stir421x_fw_upload(self, &fw->data[i],
+ fw->size - i);
+ }
+ }
+ }
+
+ release_firmware(fw);
+
+ return ret;
}
@@ -1702,12 +1657,12 @@ static int irda_usb_probe(struct usb_interface *intf,
init_timer(&self->rx_defer_timer);
self->capability = id->driver_info;
- self->needspatch = ((self->capability & IUC_STIR_4210) != 0) ;
+ self->needspatch = ((self->capability & IUC_STIR421X) != 0);
/* Create all of the needed urbs */
- if (self->capability & IUC_STIR_4210) {
+ if (self->capability & IUC_STIR421X) {
self->max_rx_urb = IU_SIGMATEL_MAX_RX_URBS;
- self->header_length = USB_IRDA_SIGMATEL_HEADER;
+ self->header_length = USB_IRDA_STIR421X_HEADER;
} else {
self->max_rx_urb = IU_MAX_RX_URBS;
self->header_length = USB_IRDA_HEADER;
@@ -1813,8 +1768,8 @@ static int irda_usb_probe(struct usb_interface *intf,
/* Now we fetch and upload the firmware patch */
ret = stir421x_patch_device(self);
self->needspatch = (ret < 0);
- if (ret < 0) {
- printk("patch_device failed\n");
+ if (self->needspatch) {
+ IRDA_ERROR("STIR421X: Couldn't upload patch\n");
goto err_out_5;
}
diff --git a/drivers/net/irda/irda-usb.h b/drivers/net/irda/irda-usb.h
index d833db52cebf..6b2271f18e77 100644
--- a/drivers/net/irda/irda-usb.h
+++ b/drivers/net/irda/irda-usb.h
@@ -34,9 +34,6 @@
#include <net/irda/irda.h>
#include <net/irda/irda_device.h> /* struct irlap_cb */
-#define PATCH_FILE_SIZE_MAX 65536
-#define PATCH_FILE_SIZE_MIN 80
-
#define RX_COPY_THRESHOLD 200
#define IRDA_USB_MAX_MTU 2051
#define IRDA_USB_SPEED_MTU 64 /* Weird, but work like this */
@@ -107,14 +104,15 @@
#define IUC_SMALL_PKT 0x10 /* Device doesn't behave with big Rx packets */
#define IUC_MAX_WINDOW 0x20 /* Device underestimate the Rx window */
#define IUC_MAX_XBOFS 0x40 /* Device need more xbofs than advertised */
-#define IUC_STIR_4210 0x80 /* SigmaTel 4210/4220/4116 VFIR */
+#define IUC_STIR421X 0x80 /* SigmaTel 4210/4220/4116 VFIR */
/* USB class definitions */
#define USB_IRDA_HEADER 0x01
#define USB_CLASS_IRDA 0x02 /* USB_CLASS_APP_SPEC subclass */
#define USB_DT_IRDA 0x21
-#define USB_IRDA_SIGMATEL_HEADER 0x03
-#define IU_SIGMATEL_MAX_RX_URBS (IU_MAX_ACTIVE_RX_URBS + USB_IRDA_SIGMATEL_HEADER)
+#define USB_IRDA_STIR421X_HEADER 0x03
+#define IU_SIGMATEL_MAX_RX_URBS (IU_MAX_ACTIVE_RX_URBS + \
+ USB_IRDA_STIR421X_HEADER)
struct irda_class_desc {
__u8 bLength;
diff --git a/drivers/net/irda/mcs7780.c b/drivers/net/irda/mcs7780.c
new file mode 100644
index 000000000000..754297fc8f22
--- /dev/null
+++ b/drivers/net/irda/mcs7780.c
@@ -0,0 +1,1009 @@
+/*****************************************************************************
+*
+* Filename: mcs7780.c
+* Version: 0.4-alpha
+* Description: Irda MosChip USB Dongle Driver
+* Authors: Lukasz Stelmach <stlman@poczta.fm>
+* Brian Pugh <bpugh@cs.pdx.edu>
+* Judy Fischbach <jfisch@cs.pdx.edu>
+*
+* Based on stir4200 driver, but some things done differently.
+* Based on earlier driver by Paul Stewart <stewart@parc.com>
+*
+* Copyright (C) 2000, Roman Weissgaerber <weissg@vienna.at>
+* Copyright (C) 2001, Dag Brattli <dag@brattli.net>
+* Copyright (C) 2001, Jean Tourrilhes <jt@hpl.hp.com>
+* Copyright (C) 2004, Stephen Hemminger <shemminger@osdl.org>
+* Copyright (C) 2005, Lukasz Stelmach <stlman@poczta.fm>
+* Copyright (C) 2005, Brian Pugh <bpugh@cs.pdx.edu>
+* Copyright (C) 2005, Judy Fischbach <jfisch@cs.pdx.edu>
+*
+* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+*
+*****************************************************************************/
+
+/*
+ * MCS7780 is a simple USB to IrDA bridge by MosChip. It is neither
+ * compatibile with irda-usb nor with stir4200. Although it is quite
+ * similar to the later as far as general idea of operation is concerned.
+ * That is it requires the software to do all the framing job at SIR speeds.
+ * The hardware does take care of the framing at MIR and FIR speeds.
+ * It supports all speeds from 2400 through 4Mbps
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/kref.h>
+#include <linux/usb.h>
+#include <linux/device.h>
+#include <linux/crc32.h>
+
+#include <asm/unaligned.h>
+#include <asm/byteorder.h>
+#include <asm/uaccess.h>
+
+#include <net/irda/irda.h>
+#include <net/irda/wrapper.h>
+#include <net/irda/crc.h>
+
+#include "mcs7780.h"
+
+#define MCS_VENDOR_ID 0x9710
+#define MCS_PRODUCT_ID 0x7780
+
+static struct usb_device_id mcs_table[] = {
+ /* MosChip Corp., MCS7780 FIR-USB Adapter */
+ {USB_DEVICE(MCS_VENDOR_ID, MCS_PRODUCT_ID)},
+ {},
+};
+
+MODULE_AUTHOR("Brian Pugh <bpugh@cs.pdx.edu>");
+MODULE_DESCRIPTION("IrDA-USB Dongle Driver for MosChip MCS7780");
+MODULE_VERSION("0.3alpha");
+MODULE_LICENSE("GPL");
+
+MODULE_DEVICE_TABLE(usb, mcs_table);
+
+static int qos_mtt_bits = 0x07 /* > 1ms */ ;
+module_param(qos_mtt_bits, int, 0);
+MODULE_PARM_DESC(qos_mtt_bits, "Minimum Turn Time");
+
+static int receive_mode = 0x1;
+module_param(receive_mode, int, 0);
+MODULE_PARM_DESC(receive_mode,
+ "Receive mode of the device (1:fast, 0:slow, default:1)");
+
+static int sir_tweak = 1;
+module_param(sir_tweak, int, 0444);
+MODULE_PARM_DESC(sir_tweak,
+ "Default pulse width (1:1.6us, 0:3/16 bit, default:1).");
+
+static int transceiver_type = MCS_TSC_VISHAY;
+module_param(transceiver_type, int, 0444);
+MODULE_PARM_DESC(transceiver_type, "IR transceiver type, see mcs7780.h.");
+
+struct usb_driver mcs_driver = {
+ .name = "mcs7780",
+ .probe = mcs_probe,
+ .disconnect = mcs_disconnect,
+ .id_table = mcs_table,
+};
+
+/* speed flag selection by direct addressing.
+addr = (speed >> 8) & 0x0f
+
+0x1 57600 0x2 115200 0x4 1152000 0x5 9600
+0x6 38400 0x9 2400 0xa 576000 0xb 19200
+
+4Mbps (or 2400) must be checked separately. Since it also has
+to be programmed in a different manner that is not a big problem.
+*/
+static __u16 mcs_speed_set[16] = { 0,
+ MCS_SPEED_57600,
+ MCS_SPEED_115200,
+ 0,
+ MCS_SPEED_1152000,
+ MCS_SPEED_9600,
+ MCS_SPEED_38400,
+ 0, 0,
+ MCS_SPEED_2400,
+ MCS_SPEED_576000,
+ MCS_SPEED_19200,
+ 0, 0, 0,
+};
+
+/* Set given 16 bit register with a 16 bit value. Send control message
+ * to set dongle register. */
+static int mcs_set_reg(struct mcs_cb *mcs, __u16 reg, __u16 val)
+{
+ struct usb_device *dev = mcs->usbdev;
+ return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), MCS_WRREQ,
+ MCS_WR_RTYPE, val, reg, NULL, 0,
+ msecs_to_jiffies(MCS_CTRL_TIMEOUT));
+}
+
+/* Get 16 bit register value. Send contol message to read dongle register. */
+static int mcs_get_reg(struct mcs_cb *mcs, __u16 reg, __u16 * val)
+{
+ struct usb_device *dev = mcs->usbdev;
+ int ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), MCS_RDREQ,
+ MCS_RD_RTYPE, 0, reg, val, 2,
+ msecs_to_jiffies(MCS_CTRL_TIMEOUT));
+
+ return ret;
+}
+
+/* Setup a communication between mcs7780 and TFDU chips. It is described
+ * in more detail in the data sheet. The setup sequence puts the the
+ * vishay tranceiver into high speed mode. It will also receive SIR speed
+ * packets but at reduced sensitivity.
+ */
+
+/* 0: OK 1:ERROR */
+static inline int mcs_setup_transceiver_vishay(struct mcs_cb *mcs)
+{
+ int ret = 0;
+ __u16 rval;
+
+ /* mcs_get_reg should read exactly two bytes from the dongle */
+ ret = mcs_get_reg(mcs, MCS_XCVR_REG, &rval);
+ if (unlikely(ret != 2)) {
+ ret = -EIO;
+ goto error;
+ }
+
+ /* The MCS_XCVR_CONF bit puts the transceiver into configuration
+ * mode. The MCS_MODE0 bit must start out high (1) and then
+ * transition to low and the MCS_STFIR and MCS_MODE1 bits must
+ * be low.
+ */
+ rval |= (MCS_MODE0 | MCS_XCVR_CONF);
+ rval &= ~MCS_STFIR;
+ rval &= ~MCS_MODE1;
+ ret = mcs_set_reg(mcs, MCS_XCVR_REG, rval);
+ if (unlikely(ret))
+ goto error;
+
+ rval &= ~MCS_MODE0;
+ ret = mcs_set_reg(mcs, MCS_XCVR_REG, rval);
+ if (unlikely(ret))
+ goto error;
+
+ rval &= ~MCS_XCVR_CONF;
+ ret = mcs_set_reg(mcs, MCS_XCVR_REG, rval);
+ if (unlikely(ret))
+ goto error;
+
+ ret = 0;
+ error:
+ return ret;
+}
+
+/* Setup a communication between mcs7780 and agilent chip. */
+static inline int mcs_setup_transceiver_agilent(struct mcs_cb *mcs)
+{
+ IRDA_WARNING("This transceiver type is not supported yet.");
+ return 1;
+}
+
+/* Setup a communication between mcs7780 and sharp chip. */
+static inline int mcs_setup_transceiver_sharp(struct mcs_cb *mcs)
+{
+ IRDA_WARNING("This transceiver type is not supported yet.");
+ return 1;
+}
+
+/* Common setup for all transceivers */
+static inline int mcs_setup_transceiver(struct mcs_cb *mcs)
+{
+ int ret = 0;
+ __u16 rval;
+ char *msg;
+
+ msg = "Basic transceiver setup error.";
+
+ /* read value of MODE Register, set the DRIVER and RESET bits
+ * and write value back out to MODE Register
+ */
+ ret = mcs_get_reg(mcs, MCS_MODE_REG, &rval);
+ if(unlikely(ret != 2))
+ goto error;
+ rval |= MCS_DRIVER; /* put the mcs7780 into configuration mode. */
+ ret = mcs_set_reg(mcs, MCS_MODE_REG, rval);
+ if(unlikely(ret))
+ goto error;
+
+ rval = 0; /* set min pulse width to 0 initially. */
+ ret = mcs_set_reg(mcs, MCS_MINRXPW_REG, rval);
+ if(unlikely(ret))
+ goto error;
+
+ ret = mcs_get_reg(mcs, MCS_MODE_REG, &rval);
+ if(unlikely(ret != 2))
+ goto error;
+
+ rval &= ~MCS_FIR; /* turn off fir mode. */
+ if(mcs->sir_tweak)
+ rval |= MCS_SIR16US; /* 1.6us pulse width */
+ else
+ rval &= ~MCS_SIR16US; /* 3/16 bit time pulse width */
+
+ /* make sure ask mode and back to back packets are off. */
+ rval &= ~(MCS_BBTG | MCS_ASK);
+
+ rval &= ~MCS_SPEED_MASK;
+ rval |= MCS_SPEED_9600; /* make sure initial speed is 9600. */
+ mcs->speed = 9600;
+ mcs->new_speed = 0; /* new_speed is set to 0 */
+ rval &= ~MCS_PLLPWDN; /* disable power down. */
+
+ /* make sure device determines direction and that the auto send sip
+ * pulse are on.
+ */
+ rval |= MCS_DTD | MCS_SIPEN;
+
+ ret = mcs_set_reg(mcs, MCS_MODE_REG, rval);
+ if(unlikely(ret))
+ goto error;
+
+ msg = "transceiver model specific setup error.";
+ switch (mcs->transceiver_type) {
+ case MCS_TSC_VISHAY:
+ ret = mcs_setup_transceiver_vishay(mcs);
+ break;
+
+ case MCS_TSC_SHARP:
+ ret = mcs_setup_transceiver_sharp(mcs);
+ break;
+
+ case MCS_TSC_AGILENT:
+ ret = mcs_setup_transceiver_agilent(mcs);
+ break;
+
+ default:
+ IRDA_WARNING("Unknown transceiver type: %d",
+ mcs->transceiver_type);
+ ret = 1;
+ }
+ if (unlikely(ret))
+ goto error;
+
+ /* If transceiver is not SHARP, then if receive mode set
+ * on the RXFAST bit in the XCVR Register otherwise unset it
+ */
+ if (mcs->transceiver_type != MCS_TSC_SHARP) {
+
+ ret = mcs_get_reg(mcs, MCS_XCVR_REG, &rval);
+ if (unlikely(ret != 2))
+ goto error;
+ if (mcs->receive_mode)
+ rval |= MCS_RXFAST;
+ else
+ rval &= ~MCS_RXFAST;
+ ret = mcs_set_reg(mcs, MCS_XCVR_REG, rval);
+ if (unlikely(ret))
+ goto error;
+ }
+
+ msg = "transceiver reset.";
+
+ ret = mcs_get_reg(mcs, MCS_MODE_REG, &rval);
+ if (unlikely(ret != 2))
+ goto error;
+
+ /* reset the mcs7780 so all changes take effect. */
+ rval &= ~MCS_RESET;
+ ret = mcs_set_reg(mcs, MCS_MODE_REG, rval);
+ if (unlikely(ret))
+ goto error;
+ else
+ return ret;
+
+error:
+ IRDA_ERROR("%s", msg);
+ return ret;
+}
+
+/* Wraps the data in format for SIR */
+static inline int mcs_wrap_sir_skb(struct sk_buff *skb, __u8 * buf)
+{
+ int wraplen;
+
+ /* 2: full frame length, including "the length" */
+ wraplen = async_wrap_skb(skb, buf + 2, 4094);
+
+ wraplen += 2;
+ buf[0] = wraplen & 0xff;
+ buf[1] = (wraplen >> 8) & 0xff;
+
+ return wraplen;
+}
+
+/* Wraps the data in format for FIR */
+static unsigned mcs_wrap_fir_skb(const struct sk_buff *skb, __u8 *buf)
+{
+ unsigned int len = 0;
+ __u32 fcs = ~(crc32_le(~0, skb->data, skb->len));
+
+ /* add 2 bytes for length value and 4 bytes for fcs. */
+ len = skb->len + 6;
+
+ /* The mcs7780 requires that the first two bytes are the packet
+ * length in little endian order. Note: the length value includes
+ * the two bytes for the length value itself.
+ */
+ buf[0] = len & 0xff;
+ buf[1] = (len >> 8) & 0xff;
+ /* copy the data into the tx buffer. */
+ memcpy(buf+2, skb->data, skb->len);
+ /* put the fcs in the last four bytes in little endian order. */
+ buf[len - 4] = fcs & 0xff;
+ buf[len - 3] = (fcs >> 8) & 0xff;
+ buf[len - 2] = (fcs >> 16) & 0xff;
+ buf[len - 1] = (fcs >> 24) & 0xff;
+
+ return len;
+}
+
+/* Wraps the data in format for MIR */
+static unsigned mcs_wrap_mir_skb(const struct sk_buff *skb, __u8 *buf)
+{
+ __u16 fcs = 0;
+ int len = skb->len + 4;
+
+ fcs = ~(irda_calc_crc16(~fcs, skb->data, skb->len));
+ /* put the total packet length in first. Note: packet length
+ * value includes the two bytes that hold the packet length
+ * itself.
+ */
+ buf[0] = len & 0xff;
+ buf[1] = (len >> 8) & 0xff;
+ /* copy the data */
+ memcpy(buf+2, skb->data, skb->len);
+ /* put the fcs in last two bytes in little endian order. */
+ buf[len - 2] = fcs & 0xff;
+ buf[len - 1] = (fcs >> 8) & 0xff;
+
+ return len;
+}
+
+/* Unwrap received packets at MIR speed. A 16 bit crc_ccitt checksum is
+ * used for the fcs. When performed over the entire packet the result
+ * should be GOOD_FCS = 0xf0b8. Hands the unwrapped data off to the IrDA
+ * layer via a sk_buff.
+ */
+static void mcs_unwrap_mir(struct mcs_cb *mcs, __u8 *buf, int len)
+{
+ __u16 fcs;
+ int new_len;
+ struct sk_buff *skb;
+
+ /* Assume that the frames are going to fill a single packet
+ * rather than span multiple packets.
+ */
+
+ new_len = len - 2;
+ if(unlikely(new_len <= 0)) {
+ IRDA_ERROR("%s short frame length %d\n",
+ mcs->netdev->name, new_len);
+ ++mcs->stats.rx_errors;
+ ++mcs->stats.rx_length_errors;
+ return;
+ }
+ fcs = 0;
+ fcs = irda_calc_crc16(~fcs, buf, len);
+
+ if(fcs != GOOD_FCS) {
+ IRDA_ERROR("crc error calc 0x%x len %d\n",
+ fcs, new_len);
+ mcs->stats.rx_errors++;
+ mcs->stats.rx_crc_errors++;
+ return;
+ }
+
+ skb = dev_alloc_skb(new_len + 1);
+ if(unlikely(!skb)) {
+ ++mcs->stats.rx_dropped;
+ return;
+ }
+
+ skb_reserve(skb, 1);
+ memcpy(skb->data, buf, new_len);
+ skb_put(skb, new_len);
+ skb->mac.raw = skb->data;
+ skb->protocol = htons(ETH_P_IRDA);
+ skb->dev = mcs->netdev;
+
+ netif_rx(skb);
+
+ mcs->stats.rx_packets++;
+ mcs->stats.rx_bytes += new_len;
+
+ return;
+}
+
+/* Unwrap received packets at FIR speed. A 32 bit crc_ccitt checksum is
+ * used for the fcs. Hands the unwrapped data off to the IrDA
+ * layer via a sk_buff.
+ */
+static void mcs_unwrap_fir(struct mcs_cb *mcs, __u8 *buf, int len)
+{
+ __u32 fcs;
+ int new_len;
+ struct sk_buff *skb;
+
+ /* Assume that the frames are going to fill a single packet
+ * rather than span multiple packets. This is most likely a false
+ * assumption.
+ */
+
+ new_len = len - 4;
+ if(unlikely(new_len <= 0)) {
+ IRDA_ERROR("%s short frame length %d\n",
+ mcs->netdev->name, new_len);
+ ++mcs->stats.rx_errors;
+ ++mcs->stats.rx_length_errors;
+ return;
+ }
+
+ fcs = ~(crc32_le(~0, buf, new_len));
+ if(fcs != le32_to_cpu(get_unaligned((u32 *)(buf+new_len)))) {
+ IRDA_ERROR("crc error calc 0x%x len %d\n", fcs, new_len);
+ mcs->stats.rx_errors++;
+ mcs->stats.rx_crc_errors++;
+ return;
+ }
+
+ skb = dev_alloc_skb(new_len + 1);
+ if(unlikely(!skb)) {
+ ++mcs->stats.rx_dropped;
+ return;
+ }
+
+ skb_reserve(skb, 1);
+ memcpy(skb->data, buf, new_len);
+ skb_put(skb, new_len);
+ skb->mac.raw = skb->data;
+ skb->protocol = htons(ETH_P_IRDA);
+ skb->dev = mcs->netdev;
+
+ netif_rx(skb);
+
+ mcs->stats.rx_packets++;
+ mcs->stats.rx_bytes += new_len;
+
+ return;
+}
+
+
+/* Allocates urbs for both receive and transmit.
+ * If alloc fails return error code 0 (fail) otherwise
+ * return error code 1 (success).
+ */
+static inline int mcs_setup_urbs(struct mcs_cb *mcs)
+{
+ mcs->rx_urb = NULL;
+
+ mcs->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!mcs->tx_urb)
+ return 0;
+
+ mcs->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!mcs->rx_urb)
+ return 0;
+
+ return 1;
+}
+
+/* Sets up state to be initially outside frame, gets receive urb,
+ * sets status to successful and then submits the urb to start
+ * receiving the data.
+ */
+static inline int mcs_receive_start(struct mcs_cb *mcs)
+{
+ mcs->rx_buff.in_frame = FALSE;
+ mcs->rx_buff.state = OUTSIDE_FRAME;
+
+ usb_fill_bulk_urb(mcs->rx_urb, mcs->usbdev,
+ usb_rcvbulkpipe(mcs->usbdev, mcs->ep_in),
+ mcs->in_buf, 4096, mcs_receive_irq, mcs);
+
+ mcs->rx_urb->status = 0;
+ return usb_submit_urb(mcs->rx_urb, GFP_KERNEL);
+}
+
+/* Finds the in and out endpoints for the mcs control block */
+static inline int mcs_find_endpoints(struct mcs_cb *mcs,
+ struct usb_host_endpoint *ep, int epnum)
+{
+ int i;
+ int ret = 0;
+
+ /* If no place to store the endpoints just return */
+ if (!ep)
+ return ret;
+
+ /* cycle through all endpoints, find the first two that are DIR_IN */
+ for (i = 0; i < epnum; i++) {
+ if (ep[i].desc.bEndpointAddress & USB_DIR_IN)
+ mcs->ep_in = ep[i].desc.bEndpointAddress;
+ else
+ mcs->ep_out = ep[i].desc.bEndpointAddress;
+
+ /* MosChip says that the chip has only two bulk
+ * endpoints. Find one for each direction and move on.
+ */
+ if ((mcs->ep_in != 0) && (mcs->ep_out != 0)) {
+ ret = 1;
+ break;
+ }
+ }
+
+ return ret;
+}
+
+static void mcs_speed_work(void *arg)
+{
+ struct mcs_cb *mcs = arg;
+ struct net_device *netdev = mcs->netdev;
+
+ mcs_speed_change(mcs);
+ netif_wake_queue(netdev);
+}
+
+/* Function to change the speed of the mcs7780. Fully supports SIR,
+ * MIR, and FIR speeds.
+ */
+static int mcs_speed_change(struct mcs_cb *mcs)
+{
+ int ret = 0;
+ int rst = 0;
+ int cnt = 0;
+ __u16 nspeed;
+ __u16 rval;
+
+ nspeed = mcs_speed_set[(mcs->new_speed >> 8) & 0x0f];
+
+ do {
+ mcs_get_reg(mcs, MCS_RESV_REG, &rval);
+ } while(cnt++ < 100 && (rval & MCS_IRINTX));
+
+ if(cnt >= 100) {
+ IRDA_ERROR("unable to change speed");
+ ret = -EIO;
+ goto error;
+ }
+
+ mcs_get_reg(mcs, MCS_MODE_REG, &rval);
+
+ /* MINRXPW values recomended by MosChip */
+ if (mcs->new_speed <= 115200) {
+ rval &= ~MCS_FIR;
+
+ if ((rst = (mcs->speed > 115200)))
+ mcs_set_reg(mcs, MCS_MINRXPW_REG, 0);
+
+ } else if (mcs->new_speed <= 1152000) {
+ rval &= ~MCS_FIR;
+
+ if ((rst = !(mcs->speed == 576000 || mcs->speed == 1152000)))
+ mcs_set_reg(mcs, MCS_MINRXPW_REG, 5);
+
+ } else {
+ rval |= MCS_FIR;
+
+ if ((rst = (mcs->speed != 4000000)))
+ mcs_set_reg(mcs, MCS_MINRXPW_REG, 5);
+
+ }
+
+ rval &= ~MCS_SPEED_MASK;
+ rval |= nspeed;
+
+ ret = mcs_set_reg(mcs, MCS_MODE_REG, rval);
+ if (unlikely(ret))
+ goto error;
+
+ if (rst)
+ switch (mcs->transceiver_type) {
+ case MCS_TSC_VISHAY:
+ ret = mcs_setup_transceiver_vishay(mcs);
+ break;
+
+ case MCS_TSC_SHARP:
+ ret = mcs_setup_transceiver_sharp(mcs);
+ break;
+
+ case MCS_TSC_AGILENT:
+ ret = mcs_setup_transceiver_agilent(mcs);
+ break;
+
+ default:
+ ret = 1;
+ IRDA_WARNING("Unknown transceiver type: %d",
+ mcs->transceiver_type);
+ }
+ if (unlikely(ret))
+ goto error;
+
+ mcs_get_reg(mcs, MCS_MODE_REG, &rval);
+ rval &= ~MCS_RESET;
+ ret = mcs_set_reg(mcs, MCS_MODE_REG, rval);
+
+ mcs->speed = mcs->new_speed;
+ error:
+ mcs->new_speed = 0;
+ return ret;
+}
+
+/* Ioctl calls not supported at this time. Can be an area of future work. */
+static int mcs_net_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
+{
+ /* struct if_irda_req *irq = (struct if_irda_req *)rq; */
+ /* struct mcs_cb *mcs = netdev_priv(netdev); */
+ int ret = 0;
+
+ switch (cmd) {
+ default:
+ ret = -EOPNOTSUPP;
+ }
+
+ return ret;
+}
+
+/* Network device is taken down, done by "ifconfig irda0 down" */
+static int mcs_net_close(struct net_device *netdev)
+{
+ int ret = 0;
+ struct mcs_cb *mcs = netdev_priv(netdev);
+
+ /* Stop transmit processing */
+ netif_stop_queue(netdev);
+
+ /* kill and free the receive and transmit URBs */
+ usb_kill_urb(mcs->rx_urb);
+ usb_free_urb(mcs->rx_urb);
+ usb_kill_urb(mcs->tx_urb);
+ usb_free_urb(mcs->tx_urb);
+
+ /* Stop and remove instance of IrLAP */
+ if (mcs->irlap)
+ irlap_close(mcs->irlap);
+
+ mcs->irlap = NULL;
+ return ret;
+}
+
+/* Network device is taken up, done by "ifconfig irda0 up" */
+static int mcs_net_open(struct net_device *netdev)
+{
+ struct mcs_cb *mcs = netdev_priv(netdev);
+ char hwname[16];
+ int ret = 0;
+
+ ret = usb_clear_halt(mcs->usbdev,
+ usb_sndbulkpipe(mcs->usbdev, mcs->ep_in));
+ if (ret)
+ goto error1;
+ ret = usb_clear_halt(mcs->usbdev,
+ usb_rcvbulkpipe(mcs->usbdev, mcs->ep_out));
+ if (ret)
+ goto error1;
+
+ ret = mcs_setup_transceiver(mcs);
+ if (ret)
+ goto error1;
+
+ ret = -ENOMEM;
+
+ /* Initialize for SIR/FIR to copy data directly into skb. */
+ mcs->receiving = 0;
+ mcs->rx_buff.truesize = IRDA_SKB_MAX_MTU;
+ mcs->rx_buff.skb = dev_alloc_skb(IRDA_SKB_MAX_MTU);
+ if (!mcs->rx_buff.skb)
+ goto error1;
+
+ skb_reserve(mcs->rx_buff.skb, 1);
+ mcs->rx_buff.head = mcs->rx_buff.skb->data;
+ do_gettimeofday(&mcs->rx_time);
+
+ /*
+ * Now that everything should be initialized properly,
+ * Open new IrLAP layer instance to take care of us...
+ * Note : will send immediately a speed change...
+ */
+ sprintf(hwname, "usb#%d", mcs->usbdev->devnum);
+ mcs->irlap = irlap_open(netdev, &mcs->qos, hwname);
+ if (!mcs->irlap) {
+ IRDA_ERROR("mcs7780: irlap_open failed");
+ goto error2;
+ }
+
+ if (!mcs_setup_urbs(mcs))
+ goto error3;
+
+ ret = mcs_receive_start(mcs);
+ if (ret)
+ goto error3;
+
+ netif_start_queue(netdev);
+ return 0;
+
+ error3:
+ irlap_close(mcs->irlap);
+ error2:
+ kfree_skb(mcs->rx_buff.skb);
+ error1:
+ return ret;
+}
+
+
+/* Get device stats for /proc/net/dev and ifconfig */
+static struct net_device_stats *mcs_net_get_stats(struct net_device *netdev)
+{
+ struct mcs_cb *mcs = netdev_priv(netdev);
+ return &mcs->stats;
+}
+
+/* Receive callback function. */
+static void mcs_receive_irq(struct urb *urb, struct pt_regs *regs)
+{
+ __u8 *bytes;
+ struct mcs_cb *mcs = urb->context;
+ int i;
+ int ret;
+
+ if (!netif_running(mcs->netdev))
+ return;
+
+ if (urb->status)
+ return;
+
+ if (urb->actual_length > 0) {
+ bytes = urb->transfer_buffer;
+
+ /* MCS returns frames without BOF and EOF
+ * I assume it returns whole frames.
+ */
+ /* SIR speed */
+ if(mcs->speed < 576000) {
+ async_unwrap_char(mcs->netdev, &mcs->stats,
+ &mcs->rx_buff, 0xc0);
+
+ for (i = 0; i < urb->actual_length; i++)
+ async_unwrap_char(mcs->netdev, &mcs->stats,
+ &mcs->rx_buff, bytes[i]);
+
+ async_unwrap_char(mcs->netdev, &mcs->stats,
+ &mcs->rx_buff, 0xc1);
+ }
+ /* MIR speed */
+ else if(mcs->speed == 576000 || mcs->speed == 1152000) {
+ mcs_unwrap_mir(mcs, urb->transfer_buffer,
+ urb->actual_length);
+ }
+ /* FIR speed */
+ else {
+ mcs_unwrap_fir(mcs, urb->transfer_buffer,
+ urb->actual_length);
+ }
+ mcs->netdev->last_rx = jiffies;
+ do_gettimeofday(&mcs->rx_time);
+ }
+
+ ret = usb_submit_urb(urb, GFP_ATOMIC);
+}
+
+/* Transmit callback funtion. */
+static void mcs_send_irq(struct urb *urb, struct pt_regs *regs)
+{
+ struct mcs_cb *mcs = urb->context;
+ struct net_device *ndev = mcs->netdev;
+
+ if (unlikely(mcs->new_speed))
+ schedule_work(&mcs->work);
+ else
+ netif_wake_queue(ndev);
+}
+
+/* Transmit callback funtion. */
+static int mcs_hard_xmit(struct sk_buff *skb, struct net_device *ndev)
+{
+ unsigned long flags;
+ struct mcs_cb *mcs;
+ int wraplen;
+ int ret = 0;
+
+
+ if (skb == NULL || ndev == NULL)
+ return -EINVAL;
+
+ netif_stop_queue(ndev);
+ mcs = netdev_priv(ndev);
+
+ spin_lock_irqsave(&mcs->lock, flags);
+
+ mcs->new_speed = irda_get_next_speed(skb);
+ if (likely(mcs->new_speed == mcs->speed))
+ mcs->new_speed = 0;
+
+ /* SIR speed */
+ if(mcs->speed < 576000) {
+ wraplen = mcs_wrap_sir_skb(skb, mcs->out_buf);
+ }
+ /* MIR speed */
+ else if(mcs->speed == 576000 || mcs->speed == 1152000) {
+ wraplen = mcs_wrap_mir_skb(skb, mcs->out_buf);
+ }
+ /* FIR speed */
+ else {
+ wraplen = mcs_wrap_fir_skb(skb, mcs->out_buf);
+ }
+ usb_fill_bulk_urb(mcs->tx_urb, mcs->usbdev,
+ usb_sndbulkpipe(mcs->usbdev, mcs->ep_out),
+ mcs->out_buf, wraplen, mcs_send_irq, mcs);
+
+ if ((ret = usb_submit_urb(mcs->tx_urb, GFP_ATOMIC))) {
+ IRDA_ERROR("failed tx_urb: %d", ret);
+ switch (ret) {
+ case -ENODEV:
+ case -EPIPE:
+ break;
+ default:
+ mcs->stats.tx_errors++;
+ netif_start_queue(ndev);
+ }
+ } else {
+ mcs->stats.tx_packets++;
+ mcs->stats.tx_bytes += skb->len;
+ }
+
+ dev_kfree_skb(skb);
+ spin_unlock_irqrestore(&mcs->lock, flags);
+ return ret;
+}
+
+/*
+ * This function is called by the USB subsystem for each new device in the
+ * system. Need to verify the device and if it is, then start handling it.
+ */
+static int mcs_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev(intf);
+ struct net_device *ndev = NULL;
+ struct mcs_cb *mcs;
+ int ret = -ENOMEM;
+
+ ndev = alloc_irdadev(sizeof(*mcs));
+ if (!ndev)
+ goto error1;
+
+ IRDA_DEBUG(1, "MCS7780 USB-IrDA bridge found at %d.", udev->devnum);
+
+ /* what is it realy for? */
+ SET_MODULE_OWNER(ndev);
+ SET_NETDEV_DEV(ndev, &intf->dev);
+
+ ret = usb_reset_configuration(udev);
+ if (ret != 0) {
+ IRDA_ERROR("mcs7780: usb reset configuration failed");
+ goto error2;
+ }
+
+ mcs = netdev_priv(ndev);
+ mcs->usbdev = udev;
+ mcs->netdev = ndev;
+ spin_lock_init(&mcs->lock);
+
+ /* Initialize QoS for this device */
+ irda_init_max_qos_capabilies(&mcs->qos);
+
+ /* That's the Rx capability. */
+ mcs->qos.baud_rate.bits &=
+ IR_2400 | IR_9600 | IR_19200 | IR_38400 | IR_57600 | IR_115200
+ | IR_576000 | IR_1152000 | (IR_4000000 << 8);
+
+
+ mcs->qos.min_turn_time.bits &= qos_mtt_bits;
+ irda_qos_bits_to_value(&mcs->qos);
+
+ /* Speed change work initialisation*/
+ INIT_WORK(&mcs->work, mcs_speed_work, mcs);
+
+ /* Override the network functions we need to use */
+ ndev->hard_start_xmit = mcs_hard_xmit;
+ ndev->open = mcs_net_open;
+ ndev->stop = mcs_net_close;
+ ndev->get_stats = mcs_net_get_stats;
+ ndev->do_ioctl = mcs_net_ioctl;
+
+ if (!intf->cur_altsetting)
+ goto error2;
+
+ ret = mcs_find_endpoints(mcs, intf->cur_altsetting->endpoint,
+ intf->cur_altsetting->desc.bNumEndpoints);
+ if (!ret) {
+ ret = -ENODEV;
+ goto error2;
+ }
+
+ ret = register_netdev(ndev);
+ if (ret != 0)
+ goto error2;
+
+ IRDA_DEBUG(1, "IrDA: Registered MosChip MCS7780 device as %s",
+ ndev->name);
+
+ mcs->transceiver_type = transceiver_type;
+ mcs->sir_tweak = sir_tweak;
+ mcs->receive_mode = receive_mode;
+
+ usb_set_intfdata(intf, mcs);
+ return 0;
+
+ error2:
+ free_netdev(ndev);
+
+ error1:
+ return ret;
+}
+
+/* The current device is removed, the USB layer tells us to shut down. */
+static void mcs_disconnect(struct usb_interface *intf)
+{
+ struct mcs_cb *mcs = usb_get_intfdata(intf);
+
+ if (!mcs)
+ return;
+
+ flush_scheduled_work();
+
+ unregister_netdev(mcs->netdev);
+ free_netdev(mcs->netdev);
+
+ usb_set_intfdata(intf, NULL);
+ IRDA_DEBUG(0, "MCS7780 now disconnected.");
+}
+
+/* Module insertion */
+static int __init mcs_init(void)
+{
+ int result;
+
+ /* register this driver with the USB subsystem */
+ result = usb_register(&mcs_driver);
+ if (result)
+ IRDA_ERROR("usb_register failed. Error number %d", result);
+
+ return result;
+}
+module_init(mcs_init);
+
+/* Module removal */
+static void __exit mcs_exit(void)
+{
+ /* deregister this driver with the USB subsystem */
+ usb_deregister(&mcs_driver);
+}
+module_exit(mcs_exit);
+
diff --git a/drivers/net/irda/mcs7780.h b/drivers/net/irda/mcs7780.h
new file mode 100644
index 000000000000..1a723d725c2a
--- /dev/null
+++ b/drivers/net/irda/mcs7780.h
@@ -0,0 +1,167 @@
+/*****************************************************************************
+*
+* Filename: mcs7780.h
+* Version: 0.2-alpha
+* Description: Irda MosChip USB Dongle
+* Status: Experimental
+* Authors: Lukasz Stelmach <stlman@poczta.fm>
+* Brian Pugh <bpugh@cs.pdx.edu>
+*
+* Copyright (C) 2005, Lukasz Stelmach <stlman@poczta.fm>
+* Copyright (C) 2005, Brian Pugh <bpugh@cs.pdx.edu>
+*
+* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+*
+*****************************************************************************/
+#ifndef _MCS7780_H
+#define _MCS7780_H
+
+#define MCS_MODE_SIR 0
+#define MCS_MODE_MIR 1
+#define MCS_MODE_FIR 2
+
+#define MCS_CTRL_TIMEOUT 500
+#define MCS_XMIT_TIMEOUT 500
+/* Possible transceiver types */
+#define MCS_TSC_VISHAY 0 /* Vishay TFD, default choice */
+#define MCS_TSC_AGILENT 1 /* Agilent 3602/3600 */
+#define MCS_TSC_SHARP 2 /* Sharp GP2W1000YP */
+
+/* Requests */
+#define MCS_RD_RTYPE 0xC0
+#define MCS_WR_RTYPE 0x40
+#define MCS_RDREQ 0x0F
+#define MCS_WRREQ 0x0E
+
+/* Register 0x00 */
+#define MCS_MODE_REG 0
+#define MCS_FIR ((__u16)0x0001)
+#define MCS_SIR16US ((__u16)0x0002)
+#define MCS_BBTG ((__u16)0x0004)
+#define MCS_ASK ((__u16)0x0008)
+#define MCS_PARITY ((__u16)0x0010)
+
+/* SIR/MIR speed constants */
+#define MCS_SPEED_SHIFT 5
+#define MCS_SPEED_MASK ((__u16)0x00E0)
+#define MCS_SPEED(x) ((x & MCS_SPEED_MASK) >> MCS_SPEED_SHIFT)
+#define MCS_SPEED_2400 ((0 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK)
+#define MCS_SPEED_9600 ((1 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK)
+#define MCS_SPEED_19200 ((2 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK)
+#define MCS_SPEED_38400 ((3 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK)
+#define MCS_SPEED_57600 ((4 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK)
+#define MCS_SPEED_115200 ((5 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK)
+#define MCS_SPEED_576000 ((6 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK)
+#define MCS_SPEED_1152000 ((7 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK)
+
+#define MCS_PLLPWDN ((__u16)0x0100)
+#define MCS_DRIVER ((__u16)0x0200)
+#define MCS_DTD ((__u16)0x0400)
+#define MCS_DIR ((__u16)0x0800)
+#define MCS_SIPEN ((__u16)0x1000)
+#define MCS_SENDSIP ((__u16)0x2000)
+#define MCS_CHGDIR ((__u16)0x4000)
+#define MCS_RESET ((__u16)0x8000)
+
+/* Register 0x02 */
+#define MCS_XCVR_REG 2
+#define MCS_MODE0 ((__u16)0x0001)
+#define MCS_STFIR ((__u16)0x0002)
+#define MCS_XCVR_CONF ((__u16)0x0004)
+#define MCS_RXFAST ((__u16)0x0008)
+/* TXCUR [6:4] */
+#define MCS_TXCUR_SHIFT 4
+#define MCS_TXCUR_MASK ((__u16)0x0070)
+#define MCS_TXCUR(x) ((x & MCS_TXCUR_MASK) >> MCS_TXCUR_SHIFT)
+#define MCS_SETTXCUR(x,y) \
+ ((x & ~MCS_TXCUR_MASK) | (y << MCS_TXCUR_SHIFT) & MCS_TXCUR_MASK)
+
+#define MCS_MODE1 ((__u16)0x0080)
+#define MCS_SMODE0 ((__u16)0x0100)
+#define MCS_SMODE1 ((__u16)0x0200)
+#define MCS_INVTX ((__u16)0x0400)
+#define MCS_INVRX ((__u16)0x0800)
+
+#define MCS_MINRXPW_REG 4
+
+#define MCS_RESV_REG 7
+#define MCS_IRINTX ((__u16)0x0001)
+#define MCS_IRINRX ((__u16)0x0002)
+
+struct mcs_cb {
+ struct usb_device *usbdev; /* init: probe_irda */
+ struct net_device *netdev; /* network layer */
+ struct irlap_cb *irlap; /* The link layer we are binded to */
+ struct net_device_stats stats; /* network statistics */
+ struct qos_info qos;
+ unsigned int speed; /* Current speed */
+ unsigned int new_speed; /* new speed */
+
+ struct work_struct work; /* Change speed work */
+
+ struct sk_buff *tx_pending;
+ char in_buf[4096]; /* transmit/receive buffer */
+ char out_buf[4096]; /* transmit/receive buffer */
+ __u8 *fifo_status;
+
+ iobuff_t rx_buff; /* receive unwrap state machine */
+ struct timeval rx_time;
+ spinlock_t lock;
+ int receiving;
+
+ __u8 ep_in;
+ __u8 ep_out;
+
+ struct urb *rx_urb;
+ struct urb *tx_urb;
+
+ int transceiver_type;
+ int sir_tweak;
+ int receive_mode;
+};
+
+static int mcs_set_reg(struct mcs_cb *mcs, __u16 reg, __u16 val);
+static int mcs_get_reg(struct mcs_cb *mcs, __u16 reg, __u16 * val);
+
+static inline int mcs_setup_transceiver_vishay(struct mcs_cb *mcs);
+static inline int mcs_setup_transceiver_agilent(struct mcs_cb *mcs);
+static inline int mcs_setup_transceiver_sharp(struct mcs_cb *mcs);
+static inline int mcs_setup_transceiver(struct mcs_cb *mcs);
+static inline int mcs_wrap_sir_skb(struct sk_buff *skb, __u8 * buf);
+static unsigned mcs_wrap_fir_skb(const struct sk_buff *skb, __u8 *buf);
+static unsigned mcs_wrap_mir_skb(const struct sk_buff *skb, __u8 *buf);
+static void mcs_unwrap_mir(struct mcs_cb *mcs, __u8 *buf, int len);
+static void mcs_unwrap_fir(struct mcs_cb *mcs, __u8 *buf, int len);
+static inline int mcs_setup_urbs(struct mcs_cb *mcs);
+static inline int mcs_receive_start(struct mcs_cb *mcs);
+static inline int mcs_find_endpoints(struct mcs_cb *mcs,
+ struct usb_host_endpoint *ep, int epnum);
+
+static int mcs_speed_change(struct mcs_cb *mcs);
+
+static int mcs_net_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd);
+static int mcs_net_close(struct net_device *netdev);
+static int mcs_net_open(struct net_device *netdev);
+static struct net_device_stats *mcs_net_get_stats(struct net_device *netdev);
+
+static void mcs_receive_irq(struct urb *urb, struct pt_regs *regs);
+static void mcs_send_irq(struct urb *urb, struct pt_regs *regs);
+static int mcs_hard_xmit(struct sk_buff *skb, struct net_device *netdev);
+
+static int mcs_probe(struct usb_interface *intf,
+ const struct usb_device_id *id);
+static void mcs_disconnect(struct usb_interface *intf);
+
+#endif /* _MCS7780_H */
diff --git a/drivers/net/irda/stir4200.c b/drivers/net/irda/stir4200.c
index 31867e4b891b..d61b208b52a2 100644
--- a/drivers/net/irda/stir4200.c
+++ b/drivers/net/irda/stir4200.c
@@ -50,6 +50,7 @@
#include <linux/delay.h>
#include <linux/usb.h>
#include <linux/crc32.h>
+#include <linux/kthread.h>
#include <net/irda/irda.h>
#include <net/irda/irlap.h>
#include <net/irda/irda_device.h>
@@ -173,9 +174,7 @@ struct stir_cb {
struct qos_info qos;
unsigned speed; /* Current speed */
- wait_queue_head_t thr_wait; /* transmit thread wakeup */
- struct completion thr_exited;
- pid_t thr_pid;
+ struct task_struct *thread; /* transmit thread */
struct sk_buff *tx_pending;
void *io_buf; /* transmit/receive buffer */
@@ -577,7 +576,7 @@ static int stir_hard_xmit(struct sk_buff *skb, struct net_device *netdev)
SKB_LINEAR_ASSERT(skb);
skb = xchg(&stir->tx_pending, skb);
- wake_up(&stir->thr_wait);
+ wake_up_process(stir->thread);
/* this should never happen unless stop/wakeup problem */
if (unlikely(skb)) {
@@ -753,13 +752,7 @@ static int stir_transmit_thread(void *arg)
struct net_device *dev = stir->netdev;
struct sk_buff *skb;
- daemonize("%s", dev->name);
- allow_signal(SIGTERM);
-
- while (netif_running(dev)
- && netif_device_present(dev)
- && !signal_pending(current))
- {
+ while (!kthread_should_stop()) {
#ifdef CONFIG_PM
/* if suspending, then power off and wait */
if (unlikely(freezing(current))) {
@@ -813,10 +806,11 @@ static int stir_transmit_thread(void *arg)
}
/* sleep if nothing to send */
- wait_event_interruptible(stir->thr_wait, stir->tx_pending);
- }
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule();
- complete_and_exit (&stir->thr_exited, 0);
+ }
+ return 0;
}
@@ -859,7 +853,7 @@ static void stir_rcv_irq(struct urb *urb, struct pt_regs *regs)
warn("%s: usb receive submit error: %d",
stir->netdev->name, err);
stir->receiving = 0;
- wake_up(&stir->thr_wait);
+ wake_up_process(stir->thread);
}
}
@@ -928,10 +922,10 @@ static int stir_net_open(struct net_device *netdev)
}
/** Start kernel thread for transmit. */
- stir->thr_pid = kernel_thread(stir_transmit_thread, stir,
- CLONE_FS|CLONE_FILES);
- if (stir->thr_pid < 0) {
- err = stir->thr_pid;
+ stir->thread = kthread_run(stir_transmit_thread, stir,
+ "%s", stir->netdev->name);
+ if (IS_ERR(stir->thread)) {
+ err = PTR_ERR(stir->thread);
err("stir4200: unable to start kernel thread");
goto err_out6;
}
@@ -968,8 +962,7 @@ static int stir_net_close(struct net_device *netdev)
netif_stop_queue(netdev);
/* Kill transmit thread */
- kill_proc(stir->thr_pid, SIGTERM, 1);
- wait_for_completion(&stir->thr_exited);
+ kthread_stop(stir->thread);
kfree(stir->fifo_status);
/* Mop up receive urb's */
@@ -1084,9 +1077,6 @@ static int stir_probe(struct usb_interface *intf,
stir->qos.min_turn_time.bits &= qos_mtt_bits;
irda_qos_bits_to_value(&stir->qos);
- init_completion (&stir->thr_exited);
- init_waitqueue_head (&stir->thr_wait);
-
/* Override the network functions we need to use */
net->hard_start_xmit = stir_hard_xmit;
net->open = stir_net_open;
diff --git a/drivers/net/irda/vlsi_ir.c b/drivers/net/irda/vlsi_ir.c
index 97a49e0be76b..d70b9e8d6e60 100644
--- a/drivers/net/irda/vlsi_ir.c
+++ b/drivers/net/irda/vlsi_ir.c
@@ -959,7 +959,7 @@ static int vlsi_hard_start_xmit(struct sk_buff *skb, struct net_device *ndev)
|| (now.tv_sec==ready.tv_sec && now.tv_usec>=ready.tv_usec))
break;
udelay(100);
- /* must not sleep here - we are called under xmit_lock! */
+ /* must not sleep here - called under netif_tx_lock! */
}
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.