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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"
18
19#include <linux/kthread.h>
20
21MODULE_DESCRIPTION("FT1000 EXPRESS CARD DRIVER");
22MODULE_LICENSE("Dual MPL/GPL");
23MODULE_SUPPORTED_DEVICE("QFT FT1000 Express Cards");
24
25void *pFileStart;
26size_t FileLength;
27
28#define VENDOR_ID 0x1291
29#define PRODUCT_ID 0x11
30
31
32static struct usb_device_id id_table[] = {
33 {USB_DEVICE(VENDOR_ID, PRODUCT_ID)},
34 {},
35};
36
37MODULE_DEVICE_TABLE(usb, id_table);
38
39static bool gPollingfailed = FALSE;
40int ft1000_poll_thread(void *arg)
41{
42 int ret = STATUS_SUCCESS;
43
44 while (!kthread_should_stop()) {
45 msleep(10);
46 if (!gPollingfailed) {
47 ret = ft1000_poll(arg);
48 if (ret != STATUS_SUCCESS) {
49 DEBUG("ft1000_poll_thread: polling failed\n");
50 gPollingfailed = TRUE;
51 }
52 }
53 }
54 return STATUS_SUCCESS;
55}
56
57static int ft1000_probe(struct usb_interface *interface,
58 const struct usb_device_id *id)
59{
60 struct usb_host_interface *iface_desc;
61 struct usb_endpoint_descriptor *endpoint;
62 struct usb_device *dev;
63 unsigned numaltsetting;
64 int i, ret = 0, size;
65
66 struct ft1000_device *ft1000dev;
67 struct ft1000_info *pft1000info = NULL;
68 const struct firmware *dsp_fw;
69
70 ft1000dev = kmalloc(sizeof(struct ft1000_device), GFP_KERNEL);
71
72 if (!ft1000dev) {
73 printk(KERN_ERR "out of memory allocating device structure\n");
74 return 0;
75 }
76
77 memset(ft1000dev, 0, sizeof(*ft1000dev));
78
79 dev = interface_to_usbdev(interface);
80 DEBUG("ft1000_probe: usb device descriptor info:\n");
81 DEBUG("ft1000_probe: number of configuration is %d\n",
82 dev->descriptor.bNumConfigurations);
83
84 ft1000dev->dev = dev;
85 ft1000dev->status = 0;
86 ft1000dev->net = NULL;
87 ft1000dev->tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
88 ft1000dev->rx_urb = usb_alloc_urb(0, GFP_ATOMIC);
89
90 DEBUG("ft1000_probe is called\n");
91 numaltsetting = interface->num_altsetting;
92 DEBUG("ft1000_probe: number of alt settings is :%d\n", numaltsetting);
93 iface_desc = interface->cur_altsetting;
94 DEBUG("ft1000_probe: number of endpoints is %d\n",
95 iface_desc->desc.bNumEndpoints);
96 DEBUG("ft1000_probe: descriptor type is %d\n",
97 iface_desc->desc.bDescriptorType);
98 DEBUG("ft1000_probe: interface number is %d\n",
99 iface_desc->desc.bInterfaceNumber);
100 DEBUG("ft1000_probe: alternatesetting is %d\n",
101 iface_desc->desc.bAlternateSetting);
102 DEBUG("ft1000_probe: interface class is %d\n",
103 iface_desc->desc.bInterfaceClass);
104 DEBUG("ft1000_probe: control endpoint info:\n");
105 DEBUG("ft1000_probe: descriptor0 type -- %d\n",
106 iface_desc->endpoint[0].desc.bmAttributes);
107 DEBUG("ft1000_probe: descriptor1 type -- %d\n",
108 iface_desc->endpoint[1].desc.bmAttributes);
109 DEBUG("ft1000_probe: descriptor2 type -- %d\n",
110 iface_desc->endpoint[2].desc.bmAttributes);
111
112 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
113 endpoint =
114 (struct usb_endpoint_descriptor *)&iface_desc->
115 endpoint[i].desc;
116 DEBUG("endpoint %d\n", i);
117 DEBUG("bEndpointAddress=%x, bmAttributes=%x\n",
118 endpoint->bEndpointAddress, endpoint->bmAttributes);
119 if ((endpoint->bEndpointAddress & USB_DIR_IN)
120 && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
121 USB_ENDPOINT_XFER_BULK)) {
122 ft1000dev->bulk_in_endpointAddr =
123 endpoint->bEndpointAddress;
124 DEBUG("ft1000_probe: in: %d\n",
125 endpoint->bEndpointAddress);
126 }
127
128 if (!(endpoint->bEndpointAddress & USB_DIR_IN)
129 && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
130 USB_ENDPOINT_XFER_BULK)) {
131 ft1000dev->bulk_out_endpointAddr =
132 endpoint->bEndpointAddress;
133 DEBUG("ft1000_probe: out: %d\n",
134 endpoint->bEndpointAddress);
135 }
136 }
137
138 DEBUG("bulk_in=%d, bulk_out=%d\n", ft1000dev->bulk_in_endpointAddr,
139 ft1000dev->bulk_out_endpointAddr);
140
141 ret = request_firmware(&dsp_fw, "ft3000.img", &dev->dev);
142 if (ret < 0) {
143 printk(KERN_ERR "Error request_firmware().\n");
144 goto err_fw;
145 }
146
147 size = max_t(uint, dsp_fw->size, 4096);
148 pFileStart = kmalloc(size, GFP_KERNEL);
149
150 if (!pFileStart) {
151 release_firmware(dsp_fw);
152 ret = -ENOMEM;
153 goto err_fw;
154 }
155
156 memcpy(pFileStart, dsp_fw->data, dsp_fw->size);
157 FileLength = dsp_fw->size;
158 release_firmware(dsp_fw);
159
160 DEBUG("ft1000_probe: start downloading dsp image...\n");
161
162 ret = init_ft1000_netdev(ft1000dev);
163 if (ret)
164 goto err_load;
165
166 pft1000info = netdev_priv(ft1000dev->net);
167
168 DEBUG("In probe: pft1000info=%p\n", pft1000info);
169 ret = dsp_reload(ft1000dev);
170 if (ret) {
171 printk(KERN_ERR "Problem with DSP image loading\n");
172 goto err_load;
173 }
174
175 gPollingfailed = FALSE;
176 pft1000info->pPollThread =
177 kthread_run(ft1000_poll_thread, ft1000dev, "ft1000_poll");
178
179 if (IS_ERR(pft1000info->pPollThread)) {
180 ret = PTR_ERR(pft1000info->pPollThread);
181 goto err_load;
182 }
183
184 msleep(500);
185
186 while (!pft1000info->CardReady) {
187 if (gPollingfailed) {
188 ret = -EIO;
189 goto err_thread;
190 }
191 msleep(100);
192 DEBUG("ft1000_probe::Waiting for Card Ready\n");
193 }
194
195 DEBUG("ft1000_probe::Card Ready!!!! Registering network device\n");
196
197 ret = reg_ft1000_netdev(ft1000dev, interface);
198 if (ret)
199 goto err_thread;
200
201 ret = ft1000_init_proc(ft1000dev->net);
202 if (ret)
203 goto err_proc;
204
205 pft1000info->NetDevRegDone = 1;
206
207 return 0;
208
209err_proc:
210 unregister_netdev(ft1000dev->net);
211 free_netdev(ft1000dev->net);
212err_thread:
213 kthread_stop(pft1000info->pPollThread);
214err_load:
215 kfree(pFileStart);
216err_fw:
217 kfree(ft1000dev);
218 return ret;
219}
220
221static void ft1000_disconnect(struct usb_interface *interface)
222{
223 struct ft1000_info *pft1000info;
224
225 DEBUG("ft1000_disconnect is called\n");
226
227 pft1000info = (struct ft1000_info *) usb_get_intfdata(interface);
228 DEBUG("In disconnect pft1000info=%p\n", pft1000info);
229
230 if (pft1000info) {
231 ft1000_cleanup_proc(pft1000info);
232 if (pft1000info->pPollThread)
233 kthread_stop(pft1000info->pPollThread);
234
235 DEBUG("ft1000_disconnect: threads are terminated\n");
236
237 if (pft1000info->pFt1000Dev->net) {
238 DEBUG("ft1000_disconnect: destroy char driver\n");
239 ft1000_destroy_dev(pft1000info->pFt1000Dev->net);
240 unregister_netdev(pft1000info->pFt1000Dev->net);
241 DEBUG
242 ("ft1000_disconnect: network device unregisterd\n");
243 free_netdev(pft1000info->pFt1000Dev->net);
244
245 }
246
247 usb_free_urb(pft1000info->pFt1000Dev->rx_urb);
248 usb_free_urb(pft1000info->pFt1000Dev->tx_urb);
249
250 DEBUG("ft1000_disconnect: urb freed\n");
251
252 kfree(pft1000info->pFt1000Dev);
253 }
254 kfree(pFileStart);
255
256 return;
257}
258
259static struct usb_driver ft1000_usb_driver = {
260 .name = "ft1000usb",
261 .probe = ft1000_probe,
262 .disconnect = ft1000_disconnect,
263 .id_table = id_table,
264};
265
266static int __init usb_ft1000_init(void)
267{
268 int ret = 0;
269
270 DEBUG("Initialize and register the driver\n");
271
272 ret = usb_register(&ft1000_usb_driver);
273 if (ret)
274 err("usb_register failed. Error number %d", ret);
275
276 return ret;
277}
278
279static void __exit usb_ft1000_exit(void)
280{
281 DEBUG("Deregister the driver\n");
282 usb_deregister(&ft1000_usb_driver);
283}
284
285module_init(usb_ft1000_init);
286module_exit(usb_ft1000_exit);
287
