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* CopyRight (C) 2007 Qualcomm Inc. All Rights Reserved.
*
*
* This file is part of Express Card USB Driver
*
* $Id:
*====================================================
*/
#include <linux/init.h>
#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 = FALSE;
int ft1000_poll_thread(void *arg)
{
int ret = STATUS_SUCCESS;
while (!kthread_should_stop()) {
msleep(10);
if (!gPollingfailed) {
ret = ft1000_poll(arg);
if (ret != STATUS_SUCCESS) {
DEBUG("ft1000_poll_thread: polling failed\n");
gPollingfailed = TRUE;
}
}
}
return STATUS_SUCCESS;
}
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_device *ft1000dev;
struct ft1000_info *pft1000info = NULL;
const struct firmware *dsp_fw;
ft1000dev = kmalloc(sizeof(struct ft1000_device), GFP_KERNEL);
if (!ft1000dev) {
printk(KERN_ERR "out of memory allocating device structure\n");
return 0;
}
memset(ft1000dev, 0, sizeof(*ft1000dev));
dev = interface_to_usbdev(interface);
DEBUG("ft1000_probe: usb device descriptor info:\n");
DEBUG("ft1000_probe: 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_ATOMIC);
ft1000dev->rx_urb = usb_alloc_urb(0, GFP_ATOMIC);
DEBUG("ft1000_probe is called\n");
numaltsetting = interface->num_altsetting;
DEBUG("ft1000_probe: number of alt settings is :%d\n", numaltsetting);
iface_desc = interface->cur_altsetting;
DEBUG("ft1000_probe: number of endpoints is %d\n",
iface_desc->desc.bNumEndpoints);
DEBUG("ft1000_probe: descriptor type is %d\n",
iface_desc->desc.bDescriptorType);
DEBUG("ft1000_probe: interface number is %d\n",
iface_desc->desc.bInterfaceNumber);
DEBUG("ft1000_probe: alternatesetting is %d\n",
iface_desc->desc.bAlternateSetting);
DEBUG("ft1000_probe: interface class is %d\n",
iface_desc->desc.bInterfaceClass);
DEBUG("ft1000_probe: control endpoint info:\n");
DEBUG("ft1000_probe: descriptor0 type -- %d\n",
iface_desc->endpoint[0].desc.bmAttributes);
DEBUG("ft1000_probe: descriptor1 type -- %d\n",
iface_desc->endpoint[1].desc.bmAttributes);
DEBUG("ft1000_probe: 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;
DEBUG("endpoint %d\n", i);
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;
DEBUG("ft1000_probe: 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;
DEBUG("ft1000_probe: out: %d\n",
endpoint->bEndpointAddress);
}
}
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) {
printk(KERN_ERR "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);
DEBUG("ft1000_probe: start downloading dsp image...\n");
ret = init_ft1000_netdev(ft1000dev);
if (ret)
goto err_load;
pft1000info = netdev_priv(ft1000dev->net);
DEBUG("In probe: pft1000info=%p\n", pft1000info);
ret = dsp_reload(ft1000dev);
if (ret) {
printk(KERN_ERR "Problem with DSP image loading\n");
goto err_load;
}
gPollingfailed = FALSE;
pft1000info->pPollThread =
kthread_run(ft1000_poll_thread, ft1000dev, "ft1000_poll");
if (IS_ERR(pft1000info->pPollThread)) {
ret = PTR_ERR(pft1000info->pPollThread);
goto err_load;
}
msleep(500);
while (!pft1000info->CardReady) {
if (gPollingfailed) {
ret = -EIO;
goto err_thread;
}
msleep(100);
DEBUG("ft1000_probe::Waiting for Card Ready\n");
}
DEBUG("ft1000_probe::Card Ready!!!! Registering network device\n");
ret = reg_ft1000_netdev(ft1000dev, interface);
if (ret)
goto err_thread;
ret = ft1000_init_proc(ft1000dev->net);
if (ret)
goto err_proc;
pft1000info->NetDevRegDone = 1;
return 0;
err_proc:
unregister_netdev(ft1000dev->net);
free_netdev(ft1000dev->net);
err_thread:
kthread_stop(pft1000info->pPollThread);
err_load:
kfree(pFileStart);
err_fw:
kfree(ft1000dev);
return ret;
}
static void ft1000_disconnect(struct usb_interface *interface)
{
struct ft1000_info *pft1000info;
DEBUG("ft1000_disconnect is called\n");
pft1000info = (struct ft1000_info *) usb_get_intfdata(interface);
DEBUG("In disconnect pft1000info=%p\n", pft1000info);
if (pft1000info) {
ft1000_cleanup_proc(pft1000info);
if (pft1000info->pPollThread)
kthread_stop(pft1000info->pPollThread);
DEBUG("ft1000_disconnect: threads are terminated\n");
if (pft1000info->pFt1000Dev->net) {
DEBUG("ft1000_disconnect: destroy char driver\n");
ft1000_destroy_dev(pft1000info->pFt1000Dev->net);
unregister_netdev(pft1000info->pFt1000Dev->net);
DEBUG
("ft1000_disconnect: network device unregisterd\n");
free_netdev(pft1000info->pFt1000Dev->net);
}
usb_free_urb(pft1000info->pFt1000Dev->rx_urb);
usb_free_urb(pft1000info->pFt1000Dev->tx_urb);
DEBUG("ft1000_disconnect: urb freed\n");
kfree(pft1000info->pFt1000Dev);
}
kfree(pFileStart);
return;
}
static struct usb_driver ft1000_usb_driver = {
.name = "ft1000usb",
.probe = ft1000_probe,
.disconnect = ft1000_disconnect,
.id_table = id_table,
};
static int __init usb_ft1000_init(void)
{
int ret = 0;
DEBUG("Initialize and register the driver\n");
ret = usb_register(&ft1000_usb_driver);
if (ret)
err("usb_register failed. Error number %d", ret);
return ret;
}
static void __exit usb_ft1000_exit(void)
{
DEBUG("Deregister the driver\n");
usb_deregister(&ft1000_usb_driver);
}
module_init(usb_ft1000_init);
module_exit(usb_ft1000_exit);
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