Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 | /*=====================================================
* CopyRight (C) 2007 Qualcomm Inc. All Rights Reserved.
*
*
* This file is part of Express Card USB Driver
*
* $Id:
*====================================================
*/
#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) {
DEBUG("ft1000_poll_thread: 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);
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_KERNEL);
ft1000dev->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!ft1000dev->tx_urb || !ft1000dev->rx_urb) {
ret = -ENOMEM;
goto err_fw;
}
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) {
pr_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) {
pr_err("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);
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;
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;
DEBUG("ft1000_disconnect is called\n");
pft1000info = (struct ft1000_info *) usb_get_intfdata(interface);
DEBUG("In disconnect pft1000info=%p\n", pft1000info);
if (pft1000info) {
ft1000dev = pft1000info->priv;
if (ft1000dev->pPollThread)
kthread_stop(ft1000dev->pPollThread);
DEBUG("ft1000_disconnect: threads are terminated\n");
if (ft1000dev->net) {
DEBUG("ft1000_disconnect: destroy char driver\n");
ft1000_destroy_dev(ft1000dev->net);
unregister_netdev(ft1000dev->net);
DEBUG
("ft1000_disconnect: network device unregistered\n");
free_netdev(ft1000dev->net);
}
usb_free_urb(ft1000dev->rx_urb);
usb_free_urb(ft1000dev->tx_urb);
DEBUG("ft1000_disconnect: 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);
|