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GUI: Fix Tomato RAF theme for all builds. Compilation typo.
[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / drivers / media / video / tlg2300 / pd-main.c
blob4555f4a5f4c84b94f532d6993a5d0591e4569ae9
1 /*
2 * device driver for Telegent tlg2300 based TV cards
3 *
4 * Author :
5 * Kang Yong <kangyong@telegent.com>
6 * Zhang Xiaobing <xbzhang@telegent.com>
7 * Huang Shijie <zyziii@telegent.com> or <shijie8@gmail.com>
8 *
9 * (c) 2009 Telegent Systems
10 * (c) 2010 Telegent Systems
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 */
26
27 #include <linux/kernel.h>
28 #include <linux/errno.h>
29 #include <linux/init.h>
30 #include <linux/slab.h>
31 #include <linux/module.h>
32 #include <linux/kref.h>
33 #include <linux/suspend.h>
34 #include <linux/usb/quirks.h>
35 #include <linux/ctype.h>
36 #include <linux/string.h>
37 #include <linux/types.h>
38 #include <linux/firmware.h>
39 #include <linux/smp_lock.h>
40
41 #include "vendorcmds.h"
42 #include "pd-common.h"
43
44 #define VENDOR_ID 0x1B24
45 #define PRODUCT_ID 0x4001
46 static struct usb_device_id id_table[] = {
47 { USB_DEVICE_AND_INTERFACE_INFO(VENDOR_ID, PRODUCT_ID, 255, 1, 0) },
48 { USB_DEVICE_AND_INTERFACE_INFO(VENDOR_ID, PRODUCT_ID, 255, 1, 1) },
49 { },
50 };
51 MODULE_DEVICE_TABLE(usb, id_table);
52
53 int debug_mode;
54 module_param(debug_mode, int, 0644);
55 MODULE_PARM_DESC(debug_mode, "0 = disable, 1 = enable, 2 = verbose");
56
57 static const char *firmware_name = "tlg2300_firmware.bin";
58 static struct usb_driver poseidon_driver;
59 static LIST_HEAD(pd_device_list);
60
61 /*
62 * send set request to USB firmware.
63 */
64 s32 send_set_req(struct poseidon *pd, u8 cmdid, s32 param, s32 *cmd_status)
65 {
66 s32 ret;
67 s8 data[32] = {};
68 u16 lower_16, upper_16;
69
70 if (pd->state & POSEIDON_STATE_DISCONNECT)
71 return -ENODEV;
72
73 mdelay(30);
74
75 if (param == 0) {
76 upper_16 = lower_16 = 0;
77 } else {
78 /* send 32 bit param as two 16 bit param,little endian */
79 lower_16 = (unsigned short)(param & 0xffff);
80 upper_16 = (unsigned short)((param >> 16) & 0xffff);
81 }
82 ret = usb_control_msg(pd->udev,
83 usb_rcvctrlpipe(pd->udev, 0),
84 REQ_SET_CMD | cmdid,
85 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
86 lower_16,
87 upper_16,
88 &data,
89 sizeof(*cmd_status),
90 USB_CTRL_GET_TIMEOUT);
91
92 if (!ret) {
93 return -ENXIO;
94 } else {
95 /* 1st 4 bytes into cmd_status */
96 memcpy((char *)cmd_status, &(data[0]), sizeof(*cmd_status));
97 }
98 return 0;
99 }
100
101 /*
102 * send get request to Poseidon firmware.
103 */
104 s32 send_get_req(struct poseidon *pd, u8 cmdid, s32 param,
105 void *buf, s32 *cmd_status, s32 datalen)
106 {
107 s32 ret;
108 s8 data[128] = {};
109 u16 lower_16, upper_16;
110
111 if (pd->state & POSEIDON_STATE_DISCONNECT)
112 return -ENODEV;
113
114 mdelay(30);
115 if (param == 0) {
116 upper_16 = lower_16 = 0;
117 } else {
118 /*send 32 bit param as two 16 bit param, little endian */
119 lower_16 = (unsigned short)(param & 0xffff);
120 upper_16 = (unsigned short)((param >> 16) & 0xffff);
121 }
122 ret = usb_control_msg(pd->udev,
123 usb_rcvctrlpipe(pd->udev, 0),
124 REQ_GET_CMD | cmdid,
125 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
126 lower_16,
127 upper_16,
128 &data,
129 (datalen + sizeof(*cmd_status)),
130 USB_CTRL_GET_TIMEOUT);
131
132 if (ret < 0) {
133 return -ENXIO;
134 } else {
135 /* 1st 4 bytes into cmd_status, remaining data into cmd_data */
136 memcpy((char *)cmd_status, &data[0], sizeof(*cmd_status));
137 memcpy((char *)buf, &data[sizeof(*cmd_status)], datalen);
138 }
139 return 0;
140 }
141
142 static int pm_notifier_block(struct notifier_block *nb,
143 unsigned long event, void *dummy)
144 {
145 struct poseidon *pd = NULL;
146 struct list_head *node, *next;
147
148 switch (event) {
149 case PM_POST_HIBERNATION:
150 list_for_each_safe(node, next, &pd_device_list) {
151 struct usb_device *udev;
152 struct usb_interface *iface;
153 int rc = 0;
154
155 pd = container_of(node, struct poseidon, device_list);
156 udev = pd->udev;
157 iface = pd->interface;
158
159 /* It will cause the system to reload the firmware */
160 rc = usb_lock_device_for_reset(udev, iface);
161 if (rc >= 0) {
162 usb_reset_device(udev);
163 usb_unlock_device(udev);
164 }
165 }
166 break;
167 default:
168 break;
169 }
170 log("event :%ld\n", event);
171 return 0;
172 }
173
174 static struct notifier_block pm_notifer = {
175 .notifier_call = pm_notifier_block,
176 };
177
178 int set_tuner_mode(struct poseidon *pd, unsigned char mode)
179 {
180 s32 ret, cmd_status;
181
182 if (pd->state & POSEIDON_STATE_DISCONNECT)
183 return -ENODEV;
184
185 ret = send_set_req(pd, TUNE_MODE_SELECT, mode, &cmd_status);
186 if (ret || cmd_status)
187 return -ENXIO;
188 return 0;
189 }
190
191 void poseidon_delete(struct kref *kref)
192 {
193 struct poseidon *pd = container_of(kref, struct poseidon, kref);
194
195 if (!pd)
196 return;
197 list_del_init(&pd->device_list);
198
199 pd_dvb_usb_device_cleanup(pd);
200 /* clean_audio_data(&pd->audio_data);*/
201
202 if (pd->udev) {
203 usb_put_dev(pd->udev);
204 pd->udev = NULL;
205 }
206 if (pd->interface) {
207 usb_put_intf(pd->interface);
208 pd->interface = NULL;
209 }
210 kfree(pd);
211 log();
212 }
213
214 static int firmware_download(struct usb_device *udev)
215 {
216 int ret = 0, actual_length;
217 const struct firmware *fw = NULL;
218 void *fwbuf = NULL;
219 size_t fwlength = 0, offset;
220 size_t max_packet_size;
221
222 ret = request_firmware(&fw, firmware_name, &udev->dev);
223 if (ret) {
224 log("download err : %d", ret);
225 return ret;
226 }
227
228 fwlength = fw->size;
229
230 fwbuf = kmemdup(fw->data, fwlength, GFP_KERNEL);
231 if (!fwbuf) {
232 ret = -ENOMEM;
233 goto out;
234 }
235
236 max_packet_size = udev->ep_out[0x1]->desc.wMaxPacketSize;
237 log("\t\t download size : %d", (int)max_packet_size);
238
239 for (offset = 0; offset < fwlength; offset += max_packet_size) {
240 actual_length = 0;
241 ret = usb_bulk_msg(udev,
242 usb_sndbulkpipe(udev, 0x01), /* ep 1 */
243 fwbuf + offset,
244 min(max_packet_size, fwlength - offset),
245 &actual_length,
246 HZ * 10);
247 if (ret)
248 break;
249 }
250 kfree(fwbuf);
251 out:
252 release_firmware(fw);
253 return ret;
254 }
255
256 static inline struct poseidon *get_pd(struct usb_interface *intf)
257 {
258 return usb_get_intfdata(intf);
259 }
260
261 #ifdef CONFIG_PM
262 /* one-to-one map : poseidon{} <----> usb_device{}'s port */
263 static inline void set_map_flags(struct poseidon *pd, struct usb_device *udev)
264 {
265 pd->portnum = udev->portnum;
266 }
267
268 static inline int get_autopm_ref(struct poseidon *pd)
269 {
270 return pd->video_data.users + pd->vbi_data.users + pd->audio.users
271 + atomic_read(&pd->dvb_data.users) + pd->radio_data.users;
272 }
273
274 /* fixup something for poseidon */
275 static inline struct poseidon *fixup(struct poseidon *pd)
276 {
277 int count;
278
279 /* old udev and interface have gone, so put back reference . */
280 count = get_autopm_ref(pd);
281 log("count : %d, ref count : %d", count, get_pm_count(pd));
282 while (count--)
283 usb_autopm_put_interface(pd->interface);
284 /*usb_autopm_set_interface(pd->interface); */
285
286 usb_put_dev(pd->udev);
287 usb_put_intf(pd->interface);
288 log("event : %d\n", pd->msg.event);
289 return pd;
290 }
291
292 static struct poseidon *find_old_poseidon(struct usb_device *udev)
293 {
294 struct poseidon *pd;
295
296 list_for_each_entry(pd, &pd_device_list, device_list) {
297 if (pd->portnum == udev->portnum && in_hibernation(pd))
298 return fixup(pd);
299 }
300 return NULL;
301 }
302
303 /* Is the card working now ? */
304 static inline int is_working(struct poseidon *pd)
305 {
306 return get_pm_count(pd) > 0;
307 }
308
309 static int poseidon_suspend(struct usb_interface *intf, pm_message_t msg)
310 {
311 struct poseidon *pd = get_pd(intf);
312
313 if (!pd)
314 return 0;
315 if (!is_working(pd)) {
316 if (get_pm_count(pd) <= 0 && !in_hibernation(pd)) {
317 pd->msg.event = PM_EVENT_AUTO_SUSPEND;
318 pd->pm_resume = NULL; /* a good guard */
319 printk(KERN_DEBUG "\n\t+ TLG2300 auto suspend +\n\n");
320 }
321 return 0;
322 }
323 pd->msg = msg; /* save it here */
324 logpm(pd);
325 return pd->pm_suspend ? pd->pm_suspend(pd) : 0;
326 }
327
328 static int poseidon_resume(struct usb_interface *intf)
329 {
330 struct poseidon *pd = get_pd(intf);
331
332 if (!pd)
333 return 0;
334 printk(KERN_DEBUG "\n\t ++ TLG2300 resume ++\n\n");
335
336 if (!is_working(pd)) {
337 if (PM_EVENT_AUTO_SUSPEND == pd->msg.event)
338 pd->msg = PMSG_ON;
339 return 0;
340 }
341 if (in_hibernation(pd)) {
342 logpm(pd);
343 return 0;
344 }
345 logpm(pd);
346 return pd->pm_resume ? pd->pm_resume(pd) : 0;
347 }
348
349 static void hibernation_resume(struct work_struct *w)
350 {
351 struct poseidon *pd = container_of(w, struct poseidon, pm_work);
352 int count;
353
354 pd->msg.event = 0; /* clear it here */
355 pd->state &= ~POSEIDON_STATE_DISCONNECT;
356
357 /* set the new interface's reference */
358 count = get_autopm_ref(pd);
359 while (count--)
360 usb_autopm_get_interface(pd->interface);
361
362 /* resume the context */
363 logpm(pd);
364 if (pd->pm_resume)
365 pd->pm_resume(pd);
366 }
367 #else /* CONFIG_PM is not enabled: */
368 static inline struct poseidon *find_old_poseidon(struct usb_device *udev)
369 {
370 return NULL;
371 }
372
373 static inline void set_map_flags(struct poseidon *pd, struct usb_device *udev)
374 {
375 }
376 #endif
377
378 static bool check_firmware(struct usb_device *udev, int *down_firmware)
379 {
380 void *buf;
381 int ret;
382 struct cmd_firmware_vers_s *cmd_firm;
383
384 buf = kzalloc(sizeof(*cmd_firm) + sizeof(u32), GFP_KERNEL);
385 if (!buf)
386 return -ENOMEM;
387 ret = usb_control_msg(udev,
388 usb_rcvctrlpipe(udev, 0),
389 REQ_GET_CMD | GET_FW_ID,
390 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
391 0,
392 0,
393 buf,
394 sizeof(*cmd_firm) + sizeof(u32),
395 USB_CTRL_GET_TIMEOUT);
396 kfree(buf);
397
398 if (ret < 0) {
399 *down_firmware = 1;
400 return firmware_download(udev);
401 }
402 return ret;
403 }
404
405 static int poseidon_probe(struct usb_interface *interface,
406 const struct usb_device_id *id)
407 {
408 struct usb_device *udev = interface_to_usbdev(interface);
409 struct poseidon *pd = NULL;
410 int ret = 0;
411 int new_one = 0;
412
413 /* download firmware */
414 check_firmware(udev, &ret);
415 if (ret)
416 return 0;
417
418 /* Do I recovery from the hibernate ? */
419 pd = find_old_poseidon(udev);
420 if (!pd) {
421 pd = kzalloc(sizeof(*pd), GFP_KERNEL);
422 if (!pd)
423 return -ENOMEM;
424 kref_init(&pd->kref);
425 set_map_flags(pd, udev);
426 new_one = 1;
427 }
428
429 pd->udev = usb_get_dev(udev);
430 pd->interface = usb_get_intf(interface);
431 usb_set_intfdata(interface, pd);
432
433 if (new_one) {
434 struct device *dev = &interface->dev;
435
436 logpm(pd);
437 mutex_init(&pd->lock);
438
439 /* register v4l2 device */
440 snprintf(pd->v4l2_dev.name, sizeof(pd->v4l2_dev.name), "%s %s",
441 dev->driver->name, dev_name(dev));
442 ret = v4l2_device_register(NULL, &pd->v4l2_dev);
443
444 /* register devices in directory /dev */
445 ret = pd_video_init(pd);
446 poseidon_audio_init(pd);
447 poseidon_fm_init(pd);
448 pd_dvb_usb_device_init(pd);
449
450 INIT_LIST_HEAD(&pd->device_list);
451 list_add_tail(&pd->device_list, &pd_device_list);
452 }
453
454 device_init_wakeup(&udev->dev, 1);
455 #ifdef CONFIG_PM
456 pd->udev->autosuspend_delay = HZ * PM_SUSPEND_DELAY;
457 usb_enable_autosuspend(pd->udev);
458
459 if (in_hibernation(pd)) {
460 INIT_WORK(&pd->pm_work, hibernation_resume);
461 schedule_work(&pd->pm_work);
462 }
463 #endif
464 return 0;
465 }
466
467 static void poseidon_disconnect(struct usb_interface *interface)
468 {
469 struct poseidon *pd = get_pd(interface);
470
471 if (!pd)
472 return;
473 logpm(pd);
474 if (in_hibernation(pd))
475 return;
476
477 mutex_lock(&pd->lock);
478 pd->state |= POSEIDON_STATE_DISCONNECT;
479 mutex_unlock(&pd->lock);
480
481 /* stop urb transferring */
482 stop_all_video_stream(pd);
483 dvb_stop_streaming(&pd->dvb_data);
484
485 /*unregister v4l2 device */
486 v4l2_device_unregister(&pd->v4l2_dev);
487
488 lock_kernel();
489 {
490 pd_dvb_usb_device_exit(pd);
491 poseidon_fm_exit(pd);
492
493 poseidon_audio_free(pd);
494 pd_video_exit(pd);
495 }
496 unlock_kernel();
497
498 usb_set_intfdata(interface, NULL);
499 kref_put(&pd->kref, poseidon_delete);
500 }
501
502 static struct usb_driver poseidon_driver = {
503 .name = "poseidon",
504 .probe = poseidon_probe,
505 .disconnect = poseidon_disconnect,
506 .id_table = id_table,
507 #ifdef CONFIG_PM
508 .suspend = poseidon_suspend,
509 .resume = poseidon_resume,
510 #endif
511 .supports_autosuspend = 1,
512 };
513
514 static int __init poseidon_init(void)
515 {
516 int ret;
517
518 ret = usb_register(&poseidon_driver);
519 if (ret)
520 return ret;
521 register_pm_notifier(&pm_notifer);
522 return ret;
523 }
524
525 static void __exit poseidon_exit(void)
526 {
527 log();
528 unregister_pm_notifier(&pm_notifer);
529 usb_deregister(&poseidon_driver);
530 }
531
532 module_init(poseidon_init);
533 module_exit(poseidon_exit);
534
535 MODULE_AUTHOR("Telegent Systems");
536 MODULE_DESCRIPTION("For tlg2300-based USB device ");
537 MODULE_LICENSE("GPL");
Tomato firmware and modifications.