1 /*=====================================================
2 * CopyRight (C) 2007 Qualcomm Inc. All Rights Reserved.
5 * This file is part of Express Card USB Driver
8 *====================================================
10 #include <linux/init.h>
11 #include <linux/kernel.h>
12 #include <linux/module.h>
13 #include <linux/usb.h>
14 #include <linux/netdevice.h>
15 #include <linux/etherdevice.h>
16 #include <linux/firmware.h>
17 #include "ft1000_usb.h"
19 #include <linux/kthread.h>
21 MODULE_DESCRIPTION("FT1000 EXPRESS CARD DRIVER");
22 MODULE_LICENSE("Dual MPL/GPL");
23 MODULE_SUPPORTED_DEVICE("QFT FT1000 Express Cards");
28 #define VENDOR_ID 0x1291 /* Qualcomm vendor id */
29 #define PRODUCT_ID 0x11 /* fake product id */
31 /* table of devices that work with this driver */
32 static struct usb_device_id id_table[] = {
33 {USB_DEVICE(VENDOR_ID, PRODUCT_ID)},
37 MODULE_DEVICE_TABLE(usb, id_table);
39 static bool gPollingfailed = false;
40 static int ft1000_poll_thread(void *arg)
44 while (!kthread_should_stop()) {
46 if (!gPollingfailed) {
47 ret = ft1000_poll(arg);
48 if (ret != STATUS_SUCCESS) {
49 DEBUG("ft1000_poll_thread: polling failed\n");
50 gPollingfailed = true;
54 return STATUS_SUCCESS;
57 static int ft1000_probe(struct usb_interface *interface,
58 const struct usb_device_id *id)
60 struct usb_host_interface *iface_desc;
61 struct usb_endpoint_descriptor *endpoint;
62 struct usb_device *dev;
63 unsigned numaltsetting;
66 struct ft1000_usb *ft1000dev;
67 struct ft1000_info *pft1000info = NULL;
68 const struct firmware *dsp_fw;
70 ft1000dev = kzalloc(sizeof(struct ft1000_usb), GFP_KERNEL);
74 dev = interface_to_usbdev(interface);
75 DEBUG("ft1000_probe: usb device descriptor info:\n");
76 DEBUG("ft1000_probe: number of configuration is %d\n",
77 dev->descriptor.bNumConfigurations);
80 ft1000dev->status = 0;
81 ft1000dev->net = NULL;
82 ft1000dev->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
83 ft1000dev->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
84 if (!ft1000dev->tx_urb || !ft1000dev->rx_urb) {
89 DEBUG("ft1000_probe is called\n");
90 numaltsetting = interface->num_altsetting;
91 DEBUG("ft1000_probe: number of alt settings is :%d\n", numaltsetting);
92 iface_desc = interface->cur_altsetting;
93 DEBUG("ft1000_probe: number of endpoints is %d\n",
94 iface_desc->desc.bNumEndpoints);
95 DEBUG("ft1000_probe: descriptor type is %d\n",
96 iface_desc->desc.bDescriptorType);
97 DEBUG("ft1000_probe: interface number is %d\n",
98 iface_desc->desc.bInterfaceNumber);
99 DEBUG("ft1000_probe: alternatesetting is %d\n",
100 iface_desc->desc.bAlternateSetting);
101 DEBUG("ft1000_probe: interface class is %d\n",
102 iface_desc->desc.bInterfaceClass);
103 DEBUG("ft1000_probe: control endpoint info:\n");
104 DEBUG("ft1000_probe: descriptor0 type -- %d\n",
105 iface_desc->endpoint[0].desc.bmAttributes);
106 DEBUG("ft1000_probe: descriptor1 type -- %d\n",
107 iface_desc->endpoint[1].desc.bmAttributes);
108 DEBUG("ft1000_probe: descriptor2 type -- %d\n",
109 iface_desc->endpoint[2].desc.bmAttributes);
111 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
113 (struct usb_endpoint_descriptor *)&iface_desc->
115 DEBUG("endpoint %d\n", i);
116 DEBUG("bEndpointAddress=%x, bmAttributes=%x\n",
117 endpoint->bEndpointAddress, endpoint->bmAttributes);
118 if ((endpoint->bEndpointAddress & USB_DIR_IN)
119 && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
120 USB_ENDPOINT_XFER_BULK)) {
121 ft1000dev->bulk_in_endpointAddr =
122 endpoint->bEndpointAddress;
123 DEBUG("ft1000_probe: in: %d\n",
124 endpoint->bEndpointAddress);
127 if (!(endpoint->bEndpointAddress & USB_DIR_IN)
128 && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
129 USB_ENDPOINT_XFER_BULK)) {
130 ft1000dev->bulk_out_endpointAddr =
131 endpoint->bEndpointAddress;
132 DEBUG("ft1000_probe: out: %d\n",
133 endpoint->bEndpointAddress);
137 DEBUG("bulk_in=%d, bulk_out=%d\n", ft1000dev->bulk_in_endpointAddr,
138 ft1000dev->bulk_out_endpointAddr);
140 ret = request_firmware(&dsp_fw, "ft3000.img", &dev->dev);
142 pr_err("Error request_firmware().\n");
146 size = max_t(uint, dsp_fw->size, 4096);
147 pFileStart = kmalloc(size, GFP_KERNEL);
150 release_firmware(dsp_fw);
155 memcpy(pFileStart, dsp_fw->data, dsp_fw->size);
156 FileLength = dsp_fw->size;
157 release_firmware(dsp_fw);
159 DEBUG("ft1000_probe: start downloading dsp image...\n");
161 ret = init_ft1000_netdev(ft1000dev);
165 pft1000info = netdev_priv(ft1000dev->net);
167 DEBUG("In probe: pft1000info=%p\n", pft1000info);
168 ret = dsp_reload(ft1000dev);
170 pr_err("Problem with DSP image loading\n");
174 gPollingfailed = false;
175 ft1000dev->pPollThread =
176 kthread_run(ft1000_poll_thread, ft1000dev, "ft1000_poll");
178 if (IS_ERR(ft1000dev->pPollThread)) {
179 ret = PTR_ERR(ft1000dev->pPollThread);
185 while (!pft1000info->CardReady) {
186 if (gPollingfailed) {
191 DEBUG("ft1000_probe::Waiting for Card Ready\n");
194 DEBUG("ft1000_probe::Card Ready!!!! Registering network device\n");
196 ret = reg_ft1000_netdev(ft1000dev, interface);
200 ret = ft1000_init_proc(ft1000dev->net);
204 ft1000dev->NetDevRegDone = 1;
209 unregister_netdev(ft1000dev->net);
210 free_netdev(ft1000dev->net);
212 kthread_stop(ft1000dev->pPollThread);
216 usb_free_urb(ft1000dev->rx_urb);
217 usb_free_urb(ft1000dev->tx_urb);
222 static void ft1000_disconnect(struct usb_interface *interface)
224 struct ft1000_info *pft1000info;
225 struct ft1000_usb *ft1000dev;
227 DEBUG("ft1000_disconnect is called\n");
229 pft1000info = (struct ft1000_info *) usb_get_intfdata(interface);
230 DEBUG("In disconnect pft1000info=%p\n", pft1000info);
233 ft1000dev = pft1000info->priv;
234 ft1000_cleanup_proc(pft1000info);
235 if (ft1000dev->pPollThread)
236 kthread_stop(ft1000dev->pPollThread);
238 DEBUG("ft1000_disconnect: threads are terminated\n");
240 if (ft1000dev->net) {
241 DEBUG("ft1000_disconnect: destroy char driver\n");
242 ft1000_destroy_dev(ft1000dev->net);
243 unregister_netdev(ft1000dev->net);
245 ("ft1000_disconnect: network device unregistered\n");
246 free_netdev(ft1000dev->net);
250 usb_free_urb(ft1000dev->rx_urb);
251 usb_free_urb(ft1000dev->tx_urb);
253 DEBUG("ft1000_disconnect: urb freed\n");
262 static struct usb_driver ft1000_usb_driver = {
264 .probe = ft1000_probe,
265 .disconnect = ft1000_disconnect,
266 .id_table = id_table,
269 module_usb_driver(ft1000_usb_driver);