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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;
40static int ft1000_poll_thread(void *arg)
41{
42 int ret;
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_usb *ft1000dev;
67 struct ft1000_info *pft1000info = NULL;
68 const struct firmware *dsp_fw;
69
70 ft1000dev = kzalloc(sizeof(struct ft1000_usb), GFP_KERNEL);
71 if (!ft1000dev)
72 return -ENOMEM;
73
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);
78
79 ft1000dev->dev = dev;
80 ft1000dev->status = 0;
81 ft1000dev->net = NULL;
82 ft1000dev->tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
83 ft1000dev->rx_urb = usb_alloc_urb(0, GFP_ATOMIC);
84
85 DEBUG("ft1000_probe is called\n");
86 numaltsetting = interface->num_altsetting;
87 DEBUG("ft1000_probe: number of alt settings is :%d\n", numaltsetting);
88 iface_desc = interface->cur_altsetting;
89 DEBUG("ft1000_probe: number of endpoints is %d\n",
90 iface_desc->desc.bNumEndpoints);
91 DEBUG("ft1000_probe: descriptor type is %d\n",
92 iface_desc->desc.bDescriptorType);
93 DEBUG("ft1000_probe: interface number is %d\n",
94 iface_desc->desc.bInterfaceNumber);
95 DEBUG("ft1000_probe: alternatesetting is %d\n",
96 iface_desc->desc.bAlternateSetting);
97 DEBUG("ft1000_probe: interface class is %d\n",
98 iface_desc->desc.bInterfaceClass);
99 DEBUG("ft1000_probe: control endpoint info:\n");
100 DEBUG("ft1000_probe: descriptor0 type -- %d\n",
101 iface_desc->endpoint[0].desc.bmAttributes);
102 DEBUG("ft1000_probe: descriptor1 type -- %d\n",
103 iface_desc->endpoint[1].desc.bmAttributes);
104 DEBUG("ft1000_probe: descriptor2 type -- %d\n",
105 iface_desc->endpoint[2].desc.bmAttributes);
106
107 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
108 endpoint =
109 (struct usb_endpoint_descriptor *)&iface_desc->
110 endpoint[i].desc;
111 DEBUG("endpoint %d\n", i);
112 DEBUG("bEndpointAddress=%x, bmAttributes=%x\n",
113 endpoint->bEndpointAddress, endpoint->bmAttributes);
114 if ((endpoint->bEndpointAddress & USB_DIR_IN)
115 && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
116 USB_ENDPOINT_XFER_BULK)) {
117 ft1000dev->bulk_in_endpointAddr =
118 endpoint->bEndpointAddress;
119 DEBUG("ft1000_probe: in: %d\n",
120 endpoint->bEndpointAddress);
121 }
122
123 if (!(endpoint->bEndpointAddress & USB_DIR_IN)
124 && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
125 USB_ENDPOINT_XFER_BULK)) {
126 ft1000dev->bulk_out_endpointAddr =
127 endpoint->bEndpointAddress;
128 DEBUG("ft1000_probe: out: %d\n",
129 endpoint->bEndpointAddress);
130 }
131 }
132
133 DEBUG("bulk_in=%d, bulk_out=%d\n", ft1000dev->bulk_in_endpointAddr,
134 ft1000dev->bulk_out_endpointAddr);
135
136 ret = request_firmware(&dsp_fw, "ft3000.img", &dev->dev);
137 if (ret < 0) {
138 pr_err("Error request_firmware().\n");
139 goto err_fw;
140 }
141
142 size = max_t(uint, dsp_fw->size, 4096);
143 pFileStart = kmalloc(size, GFP_KERNEL);
144
145 if (!pFileStart) {
146 release_firmware(dsp_fw);
147 ret = -ENOMEM;
148 goto err_fw;
149 }
150
151 memcpy(pFileStart, dsp_fw->data, dsp_fw->size);
152 FileLength = dsp_fw->size;
153 release_firmware(dsp_fw);
154
155 DEBUG("ft1000_probe: start downloading dsp image...\n");
156
157 ret = init_ft1000_netdev(ft1000dev);
158 if (ret)
159 goto err_load;
160
161 pft1000info = netdev_priv(ft1000dev->net);
162
163 DEBUG("In probe: pft1000info=%p\n", pft1000info);
164 ret = dsp_reload(ft1000dev);
165 if (ret) {
166 pr_err("Problem with DSP image loading\n");
167 goto err_load;
168 }
169
170 gPollingfailed = FALSE;
171 ft1000dev->pPollThread =
172 kthread_run(ft1000_poll_thread, ft1000dev, "ft1000_poll");
173
174 if (IS_ERR(ft1000dev->pPollThread)) {
175 ret = PTR_ERR(ft1000dev->pPollThread);
176 goto err_load;
177 }
178
179 msleep(500);
180
181 while (!pft1000info->CardReady) {
182 if (gPollingfailed) {
183 ret = -EIO;
184 goto err_thread;
185 }
186 msleep(100);
187 DEBUG("ft1000_probe::Waiting for Card Ready\n");
188 }
189
190 DEBUG("ft1000_probe::Card Ready!!!! Registering network device\n");
191
192 ret = reg_ft1000_netdev(ft1000dev, interface);
193 if (ret)
194 goto err_thread;
195
196 ret = ft1000_init_proc(ft1000dev->net);
197 if (ret)
198 goto err_proc;
199
200 ft1000dev->NetDevRegDone = 1;
201
202 return 0;
203
204err_proc:
205 unregister_netdev(ft1000dev->net);
206 free_netdev(ft1000dev->net);
207err_thread:
208 kthread_stop(ft1000dev->pPollThread);
209err_load:
210 kfree(pFileStart);
211err_fw:
212 kfree(ft1000dev);
213 return ret;
214}
215
216static void ft1000_disconnect(struct usb_interface *interface)
217{
218 struct ft1000_info *pft1000info;
219 struct ft1000_usb *ft1000dev;
220
221 DEBUG("ft1000_disconnect is called\n");
222
223 pft1000info = (struct ft1000_info *) usb_get_intfdata(interface);
224 DEBUG("In disconnect pft1000info=%p\n", pft1000info);
225
226 if (pft1000info) {
227 ft1000dev = pft1000info->priv;
228 ft1000_cleanup_proc(pft1000info);
229 if (ft1000dev->pPollThread)
230 kthread_stop(ft1000dev->pPollThread);
231
232 DEBUG("ft1000_disconnect: threads are terminated\n");
233
234 if (ft1000dev->net) {
235 DEBUG("ft1000_disconnect: destroy char driver\n");
236 ft1000_destroy_dev(ft1000dev->net);
237 unregister_netdev(ft1000dev->net);
238 DEBUG
239 ("ft1000_disconnect: network device unregistered\n");
240 free_netdev(ft1000dev->net);
241
242 }
243
244 usb_free_urb(ft1000dev->rx_urb);
245 usb_free_urb(ft1000dev->tx_urb);
246
247 DEBUG("ft1000_disconnect: urb freed\n");
248
249 kfree(ft1000dev);
250 }
251 kfree(pFileStart);
252
253 return;
254}
255
256static struct usb_driver ft1000_usb_driver = {
257 .name = "ft1000usb",
258 .probe = ft1000_probe,
259 .disconnect = ft1000_disconnect,
260 .id_table = id_table,
261};
262
263module_usb_driver(ft1000_usb_driver);
264
