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/*=====================================================
* CopyRight (C) 2007 Qualcomm Inc. All Rights Reserved.
*
*
* This file is part of Express Card USB Driver
*
* $Id:
*====================================================
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/firmware.h>
#include "ft1000_usb.h"
#include <linux/kthread.h>
MODULE_DESCRIPTION("FT1000 EXPRESS CARD DRIVER");
MODULE_LICENSE("Dual MPL/GPL");
MODULE_SUPPORTED_DEVICE("QFT FT1000 Express Cards");
void *pFileStart;
size_t FileLength;
#define VENDOR_ID 0x1291 /* Qualcomm vendor id */
#define PRODUCT_ID 0x11 /* fake product id */
/* 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);
static bool gPollingfailed;
static int ft1000_poll_thread(void *arg)
{
int ret;
while (!kthread_should_stop()) {
usleep_range(10000, 11000);
if (!gPollingfailed) {
ret = ft1000_poll(arg);
if (ret != 0) {
pr_debug("polling failed\n");
gPollingfailed = true;
}
}
}
return 0;
}
static int ft1000_probe(struct usb_interface *interface,
const struct usb_device_id *id)
{
struct usb_host_interface *iface_desc;
struct usb_endpoint_descriptor *endpoint;
struct usb_device *dev;
unsigned numaltsetting;
int i, ret = 0, size;
struct ft1000_usb *ft1000dev;
struct ft1000_info *pft1000info = NULL;
const struct firmware *dsp_fw;
ft1000dev = kzalloc(sizeof(struct ft1000_usb), GFP_KERNEL);
if (!ft1000dev)
return -ENOMEM;
dev = interface_to_usbdev(interface);
pr_debug("usb device descriptor info - number of configuration is %d\n",
dev->descriptor.bNumConfigurations);
ft1000dev->dev = dev;
ft1000dev->status = 0;
ft1000dev->net = NULL;
ft1000dev->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
ft1000dev->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!ft1000dev->tx_urb || !ft1000dev->rx_urb) {
ret = -ENOMEM;
goto err_fw;
}
numaltsetting = interface->num_altsetting;
pr_debug("number of alt settings is: %d\n", numaltsetting);
iface_desc = interface->cur_altsetting;
pr_debug("number of endpoints is: %d\n",
iface_desc->desc.bNumEndpoints);
pr_debug("descriptor type is: %d\n", iface_desc->desc.bDescriptorType);
pr_debug("interface number is: %d\n",
iface_desc->desc.bInterfaceNumber);
pr_debug("alternatesetting is: %d\n",
iface_desc->desc.bAlternateSetting);
pr_debug("interface class is: %d\n", iface_desc->desc.bInterfaceClass);
pr_debug("control endpoint info:\n");
pr_debug("descriptor0 type -- %d\n",
iface_desc->endpoint[0].desc.bmAttributes);
pr_debug("descriptor1 type -- %d\n",
iface_desc->endpoint[1].desc.bmAttributes);
pr_debug("descriptor2 type -- %d\n",
iface_desc->endpoint[2].desc.bmAttributes);
for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
endpoint =
(struct usb_endpoint_descriptor *)&iface_desc->
endpoint[i].desc;
pr_debug("endpoint %d\n", i);
pr_debug("bEndpointAddress=%x, bmAttributes=%x\n",
endpoint->bEndpointAddress, endpoint->bmAttributes);
if ((endpoint->bEndpointAddress & USB_DIR_IN)
&& ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_BULK)) {
ft1000dev->bulk_in_endpointAddr =
endpoint->bEndpointAddress;
pr_debug("in: %d\n", endpoint->bEndpointAddress);
}
if (!(endpoint->bEndpointAddress & USB_DIR_IN)
&& ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_BULK)) {
ft1000dev->bulk_out_endpointAddr =
endpoint->bEndpointAddress;
pr_debug("out: %d\n", endpoint->bEndpointAddress);
}
}
pr_debug("bulk_in=%d, bulk_out=%d\n",
ft1000dev->bulk_in_endpointAddr,
ft1000dev->bulk_out_endpointAddr);
ret = request_firmware(&dsp_fw, "ft3000.img", &dev->dev);
if (ret < 0) {
dev_err(interface->usb_dev, "Error request_firmware()\n");
goto err_fw;
}
size = max_t(uint, dsp_fw->size, 4096);
pFileStart = kmalloc(size, GFP_KERNEL);
if (!pFileStart) {
release_firmware(dsp_fw);
ret = -ENOMEM;
goto err_fw;
}
memcpy(pFileStart, dsp_fw->data, dsp_fw->size);
FileLength = dsp_fw->size;
release_firmware(dsp_fw);
pr_debug("start downloading dsp image...\n");
ret = init_ft1000_netdev(ft1000dev);
if (ret)
goto err_load;
pft1000info = netdev_priv(ft1000dev->net);
pr_debug("pft1000info=%p\n", pft1000info);
ret = dsp_reload(ft1000dev);
if (ret) {
dev_err(interface->usb_dev,
"Problem with DSP image loading\n");
goto err_load;
}
gPollingfailed = false;
ft1000dev->pPollThread =
kthread_run(ft1000_poll_thread, ft1000dev, "ft1000_poll");
if (IS_ERR(ft1000dev->pPollThread)) {
ret = PTR_ERR(ft1000dev->pPollThread);
goto err_load;
}
msleep(500);
while (!pft1000info->CardReady) {
if (gPollingfailed) {
ret = -EIO;
goto err_thread;
}
msleep(100);
pr_debug("Waiting for Card Ready\n");
}
pr_debug("Card Ready!!!! Registering network device\n");
ret = reg_ft1000_netdev(ft1000dev, interface);
if (ret)
goto err_thread;
ft1000dev->NetDevRegDone = 1;
return 0;
err_thread:
kthread_stop(ft1000dev->pPollThread);
err_load:
kfree(pFileStart);
err_fw:
usb_free_urb(ft1000dev->rx_urb);
usb_free_urb(ft1000dev->tx_urb);
kfree(ft1000dev);
return ret;
}
static void ft1000_disconnect(struct usb_interface *interface)
{
struct ft1000_info *pft1000info;
struct ft1000_usb *ft1000dev;
pft1000info = (struct ft1000_info *)usb_get_intfdata(interface);
pr_debug("In disconnect pft1000info=%p\n", pft1000info);
if (pft1000info) {
ft1000dev = pft1000info->priv;
if (ft1000dev->pPollThread)
kthread_stop(ft1000dev->pPollThread);
pr_debug("threads are terminated\n");
if (ft1000dev->net) {
pr_debug("destroy char driver\n");
ft1000_destroy_dev(ft1000dev->net);
unregister_netdev(ft1000dev->net);
pr_debug("network device unregistered\n");
free_netdev(ft1000dev->net);
}
usb_free_urb(ft1000dev->rx_urb);
usb_free_urb(ft1000dev->tx_urb);
pr_debug("urb freed\n");
kfree(ft1000dev);
}
kfree(pFileStart);
}
static struct usb_driver ft1000_usb_driver = {
.name = "ft1000usb",
.probe = ft1000_probe,
.disconnect = ft1000_disconnect,
.id_table = id_table,
};
module_usb_driver(ft1000_usb_driver);
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