Commit | Line | Data |
---|---|---|
9aba42ef | 1 | /* |
e86da6f0 | 2 | * Hauppauge HD PVR USB driver - video 4 linux 2 interface |
9aba42ef JG |
3 | * |
4 | * Copyright (C) 2008 Janne Grunau (j@jannau.net) | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License as | |
8 | * published by the Free Software Foundation, version 2. | |
9 | * | |
10 | */ | |
11 | ||
12 | #include <linux/kernel.h> | |
13 | #include <linux/errno.h> | |
14 | #include <linux/init.h> | |
15 | #include <linux/slab.h> | |
16 | #include <linux/module.h> | |
17 | #include <linux/uaccess.h> | |
18 | #include <linux/usb.h> | |
19 | #include <linux/mutex.h> | |
20 | #include <linux/version.h> | |
21 | #include <linux/workqueue.h> | |
22 | ||
23 | #include <linux/videodev2.h> | |
24 | #include <media/v4l2-dev.h> | |
25 | #include <media/v4l2-common.h> | |
26 | #include <media/v4l2-ioctl.h> | |
27 | #include "hdpvr.h" | |
28 | ||
29 | #define BULK_URB_TIMEOUT 1250 /* 1.25 seconds */ | |
30 | ||
9ef77adf JG |
31 | #define print_buffer_status() { \ |
32 | v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev, \ | |
33 | "%s:%d buffer stat: %d free, %d proc\n", \ | |
34 | __func__, __LINE__, \ | |
35 | list_size(&dev->free_buff_list), \ | |
36 | list_size(&dev->rec_buff_list)); } | |
d211bfcb | 37 | |
9aba42ef JG |
38 | struct hdpvr_fh { |
39 | struct hdpvr_device *dev; | |
40 | }; | |
41 | ||
42 | static uint list_size(struct list_head *list) | |
43 | { | |
44 | struct list_head *tmp; | |
45 | uint count = 0; | |
46 | ||
47 | list_for_each(tmp, list) { | |
48 | count++; | |
49 | } | |
50 | ||
51 | return count; | |
52 | } | |
53 | ||
54 | /*=========================================================================*/ | |
55 | /* urb callback */ | |
56 | static void hdpvr_read_bulk_callback(struct urb *urb) | |
57 | { | |
58 | struct hdpvr_buffer *buf = (struct hdpvr_buffer *)urb->context; | |
59 | struct hdpvr_device *dev = buf->dev; | |
60 | ||
61 | /* marking buffer as received and wake waiting */ | |
62 | buf->status = BUFSTAT_READY; | |
63 | wake_up_interruptible(&dev->wait_data); | |
64 | } | |
65 | ||
66 | /*=========================================================================*/ | |
67 | /* bufffer bits */ | |
68 | ||
69 | /* function expects dev->io_mutex to be hold by caller */ | |
70 | int hdpvr_cancel_queue(struct hdpvr_device *dev) | |
71 | { | |
72 | struct hdpvr_buffer *buf; | |
73 | ||
74 | list_for_each_entry(buf, &dev->rec_buff_list, buff_list) { | |
75 | usb_kill_urb(buf->urb); | |
76 | buf->status = BUFSTAT_AVAILABLE; | |
77 | } | |
78 | ||
79 | list_splice_init(&dev->rec_buff_list, dev->free_buff_list.prev); | |
80 | ||
81 | return 0; | |
82 | } | |
83 | ||
84 | static int hdpvr_free_queue(struct list_head *q) | |
85 | { | |
86 | struct list_head *tmp; | |
87 | struct list_head *p; | |
88 | struct hdpvr_buffer *buf; | |
89 | struct urb *urb; | |
90 | ||
91 | for (p = q->next; p != q;) { | |
92 | buf = list_entry(p, struct hdpvr_buffer, buff_list); | |
93 | ||
94 | urb = buf->urb; | |
95 | usb_buffer_free(urb->dev, urb->transfer_buffer_length, | |
96 | urb->transfer_buffer, urb->transfer_dma); | |
97 | usb_free_urb(urb); | |
98 | tmp = p->next; | |
99 | list_del(p); | |
100 | kfree(buf); | |
101 | p = tmp; | |
102 | } | |
103 | ||
104 | return 0; | |
105 | } | |
106 | ||
107 | /* function expects dev->io_mutex to be hold by caller */ | |
108 | int hdpvr_free_buffers(struct hdpvr_device *dev) | |
109 | { | |
110 | hdpvr_cancel_queue(dev); | |
111 | ||
112 | hdpvr_free_queue(&dev->free_buff_list); | |
113 | hdpvr_free_queue(&dev->rec_buff_list); | |
114 | ||
115 | return 0; | |
116 | } | |
117 | ||
118 | /* function expects dev->io_mutex to be hold by caller */ | |
119 | int hdpvr_alloc_buffers(struct hdpvr_device *dev, uint count) | |
120 | { | |
121 | uint i; | |
122 | int retval = -ENOMEM; | |
123 | u8 *mem; | |
124 | struct hdpvr_buffer *buf; | |
125 | struct urb *urb; | |
126 | ||
9ef77adf | 127 | v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev, |
9aba42ef JG |
128 | "allocating %u buffers\n", count); |
129 | ||
130 | for (i = 0; i < count; i++) { | |
131 | ||
132 | buf = kzalloc(sizeof(struct hdpvr_buffer), GFP_KERNEL); | |
133 | if (!buf) { | |
9ef77adf | 134 | v4l2_err(&dev->v4l2_dev, "cannot allocate buffer\n"); |
9aba42ef JG |
135 | goto exit; |
136 | } | |
137 | buf->dev = dev; | |
138 | ||
139 | urb = usb_alloc_urb(0, GFP_KERNEL); | |
140 | if (!urb) { | |
9ef77adf | 141 | v4l2_err(&dev->v4l2_dev, "cannot allocate urb\n"); |
9aba42ef JG |
142 | goto exit; |
143 | } | |
144 | buf->urb = urb; | |
145 | ||
146 | mem = usb_buffer_alloc(dev->udev, dev->bulk_in_size, GFP_KERNEL, | |
147 | &urb->transfer_dma); | |
148 | if (!mem) { | |
9ef77adf JG |
149 | v4l2_err(&dev->v4l2_dev, |
150 | "cannot allocate usb transfer buffer\n"); | |
9aba42ef JG |
151 | goto exit; |
152 | } | |
153 | ||
154 | usb_fill_bulk_urb(buf->urb, dev->udev, | |
155 | usb_rcvbulkpipe(dev->udev, | |
156 | dev->bulk_in_endpointAddr), | |
157 | mem, dev->bulk_in_size, | |
158 | hdpvr_read_bulk_callback, buf); | |
159 | ||
160 | buf->status = BUFSTAT_AVAILABLE; | |
161 | list_add_tail(&buf->buff_list, &dev->free_buff_list); | |
162 | } | |
163 | return 0; | |
164 | exit: | |
165 | hdpvr_free_buffers(dev); | |
166 | return retval; | |
167 | } | |
168 | ||
169 | static int hdpvr_submit_buffers(struct hdpvr_device *dev) | |
170 | { | |
171 | struct hdpvr_buffer *buf; | |
172 | struct urb *urb; | |
173 | int ret = 0, err_count = 0; | |
174 | ||
175 | mutex_lock(&dev->io_mutex); | |
176 | ||
177 | while (dev->status == STATUS_STREAMING && | |
178 | !list_empty(&dev->free_buff_list)) { | |
179 | ||
180 | buf = list_entry(dev->free_buff_list.next, struct hdpvr_buffer, | |
181 | buff_list); | |
182 | if (buf->status != BUFSTAT_AVAILABLE) { | |
9ef77adf JG |
183 | v4l2_err(&dev->v4l2_dev, |
184 | "buffer not marked as availbale\n"); | |
9aba42ef JG |
185 | ret = -EFAULT; |
186 | goto err; | |
187 | } | |
188 | ||
189 | urb = buf->urb; | |
190 | urb->status = 0; | |
191 | urb->actual_length = 0; | |
192 | ret = usb_submit_urb(urb, GFP_KERNEL); | |
193 | if (ret) { | |
9ef77adf JG |
194 | v4l2_err(&dev->v4l2_dev, |
195 | "usb_submit_urb in %s returned %d\n", | |
196 | __func__, ret); | |
9aba42ef JG |
197 | if (++err_count > 2) |
198 | break; | |
199 | continue; | |
200 | } | |
201 | buf->status = BUFSTAT_INPROGRESS; | |
202 | list_move_tail(&buf->buff_list, &dev->rec_buff_list); | |
203 | } | |
204 | err: | |
d211bfcb | 205 | print_buffer_status(); |
9aba42ef JG |
206 | mutex_unlock(&dev->io_mutex); |
207 | return ret; | |
208 | } | |
209 | ||
210 | static struct hdpvr_buffer *hdpvr_get_next_buffer(struct hdpvr_device *dev) | |
211 | { | |
212 | struct hdpvr_buffer *buf; | |
213 | ||
214 | mutex_lock(&dev->io_mutex); | |
215 | ||
216 | if (list_empty(&dev->rec_buff_list)) { | |
217 | mutex_unlock(&dev->io_mutex); | |
218 | return NULL; | |
219 | } | |
220 | ||
221 | buf = list_entry(dev->rec_buff_list.next, struct hdpvr_buffer, | |
222 | buff_list); | |
223 | mutex_unlock(&dev->io_mutex); | |
224 | ||
225 | return buf; | |
226 | } | |
227 | ||
228 | static void hdpvr_transmit_buffers(struct work_struct *work) | |
229 | { | |
230 | struct hdpvr_device *dev = container_of(work, struct hdpvr_device, | |
231 | worker); | |
232 | ||
233 | while (dev->status == STATUS_STREAMING) { | |
234 | ||
235 | if (hdpvr_submit_buffers(dev)) { | |
9ef77adf | 236 | v4l2_err(&dev->v4l2_dev, "couldn't submit buffers\n"); |
9aba42ef JG |
237 | goto error; |
238 | } | |
239 | if (wait_event_interruptible(dev->wait_buffer, | |
240 | !list_empty(&dev->free_buff_list) || | |
241 | dev->status != STATUS_STREAMING)) | |
242 | goto error; | |
243 | } | |
244 | ||
9ef77adf | 245 | v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev, |
9aba42ef JG |
246 | "transmit worker exited\n"); |
247 | return; | |
248 | error: | |
9ef77adf | 249 | v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev, |
9aba42ef JG |
250 | "transmit buffers errored\n"); |
251 | dev->status = STATUS_ERROR; | |
252 | } | |
253 | ||
254 | /* function expects dev->io_mutex to be hold by caller */ | |
255 | static int hdpvr_start_streaming(struct hdpvr_device *dev) | |
256 | { | |
257 | int ret; | |
258 | struct hdpvr_video_info *vidinf; | |
259 | ||
260 | if (dev->status == STATUS_STREAMING) | |
261 | return 0; | |
262 | else if (dev->status != STATUS_IDLE) | |
263 | return -EAGAIN; | |
264 | ||
265 | vidinf = get_video_info(dev); | |
266 | ||
267 | if (vidinf) { | |
9ef77adf | 268 | v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev, |
9aba42ef JG |
269 | "video signal: %dx%d@%dhz\n", vidinf->width, |
270 | vidinf->height, vidinf->fps); | |
271 | kfree(vidinf); | |
272 | ||
273 | /* start streaming 2 request */ | |
274 | ret = usb_control_msg(dev->udev, | |
275 | usb_sndctrlpipe(dev->udev, 0), | |
276 | 0xb8, 0x38, 0x1, 0, NULL, 0, 8000); | |
9ef77adf | 277 | v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev, |
9aba42ef JG |
278 | "encoder start control request returned %d\n", ret); |
279 | ||
280 | hdpvr_config_call(dev, CTRL_START_STREAMING_VALUE, 0x00); | |
281 | ||
282 | INIT_WORK(&dev->worker, hdpvr_transmit_buffers); | |
283 | queue_work(dev->workqueue, &dev->worker); | |
284 | ||
9ef77adf | 285 | v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev, |
9aba42ef JG |
286 | "streaming started\n"); |
287 | dev->status = STATUS_STREAMING; | |
288 | ||
289 | return 0; | |
290 | } | |
291 | msleep(250); | |
9ef77adf | 292 | v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev, |
9aba42ef JG |
293 | "no video signal at input %d\n", dev->options.video_input); |
294 | return -EAGAIN; | |
295 | } | |
296 | ||
297 | ||
298 | /* function expects dev->io_mutex to be hold by caller */ | |
299 | static int hdpvr_stop_streaming(struct hdpvr_device *dev) | |
300 | { | |
7d771ff0 JG |
301 | uint actual_length, c = 0; |
302 | u8 *buf; | |
303 | ||
9aba42ef JG |
304 | if (dev->status == STATUS_IDLE) |
305 | return 0; | |
306 | else if (dev->status != STATUS_STREAMING) | |
307 | return -EAGAIN; | |
308 | ||
7d771ff0 JG |
309 | buf = kmalloc(dev->bulk_in_size, GFP_KERNEL); |
310 | if (!buf) | |
311 | v4l2_err(&dev->v4l2_dev, "failed to allocate temporary buffer " | |
312 | "for emptying the internal device buffer. " | |
313 | "Next capture start will be slow\n"); | |
314 | ||
9aba42ef JG |
315 | dev->status = STATUS_SHUTTING_DOWN; |
316 | hdpvr_config_call(dev, CTRL_STOP_STREAMING_VALUE, 0x00); | |
48f98f75 | 317 | mutex_unlock(&dev->io_mutex); |
9aba42ef JG |
318 | |
319 | wake_up_interruptible(&dev->wait_buffer); | |
320 | msleep(50); | |
321 | ||
322 | flush_workqueue(dev->workqueue); | |
323 | ||
48f98f75 | 324 | mutex_lock(&dev->io_mutex); |
9aba42ef JG |
325 | /* kill the still outstanding urbs */ |
326 | hdpvr_cancel_queue(dev); | |
327 | ||
7d771ff0 JG |
328 | /* emptying the device buffer beforeshutting it down */ |
329 | while (buf && ++c < 500 && | |
330 | !usb_bulk_msg(dev->udev, | |
331 | usb_rcvbulkpipe(dev->udev, | |
332 | dev->bulk_in_endpointAddr), | |
333 | buf, dev->bulk_in_size, &actual_length, | |
334 | BULK_URB_TIMEOUT)) { | |
335 | /* wait */ | |
336 | msleep(5); | |
337 | v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev, | |
338 | "%2d: got %d bytes\n", c, actual_length); | |
339 | } | |
340 | kfree(buf); | |
341 | v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev, | |
342 | "used %d urbs to empty device buffers\n", c-1); | |
343 | msleep(10); | |
344 | ||
9aba42ef JG |
345 | dev->status = STATUS_IDLE; |
346 | ||
347 | return 0; | |
348 | } | |
349 | ||
350 | ||
351 | /*=======================================================================*/ | |
352 | /* | |
353 | * video 4 linux 2 file operations | |
354 | */ | |
355 | ||
356 | static int hdpvr_open(struct file *file) | |
357 | { | |
358 | struct hdpvr_device *dev; | |
359 | struct hdpvr_fh *fh; | |
360 | int retval = -ENOMEM; | |
361 | ||
362 | dev = (struct hdpvr_device *)video_get_drvdata(video_devdata(file)); | |
363 | if (!dev) { | |
9ef77adf | 364 | v4l2_err(&dev->v4l2_dev, "open failing with with ENODEV\n"); |
9aba42ef JG |
365 | retval = -ENODEV; |
366 | goto err; | |
367 | } | |
368 | ||
369 | fh = kzalloc(sizeof(struct hdpvr_fh), GFP_KERNEL); | |
370 | if (!fh) { | |
9ef77adf | 371 | v4l2_err(&dev->v4l2_dev, "Out of memory\n"); |
9aba42ef JG |
372 | goto err; |
373 | } | |
374 | /* lock the device to allow correctly handling errors | |
375 | * in resumption */ | |
376 | mutex_lock(&dev->io_mutex); | |
377 | dev->open_count++; | |
378 | ||
379 | fh->dev = dev; | |
380 | ||
381 | /* save our object in the file's private structure */ | |
382 | file->private_data = fh; | |
383 | ||
384 | retval = 0; | |
385 | err: | |
386 | mutex_unlock(&dev->io_mutex); | |
387 | return retval; | |
388 | } | |
389 | ||
390 | static int hdpvr_release(struct file *file) | |
391 | { | |
392 | struct hdpvr_fh *fh = (struct hdpvr_fh *)file->private_data; | |
393 | struct hdpvr_device *dev = fh->dev; | |
394 | ||
395 | if (!dev) | |
396 | return -ENODEV; | |
397 | ||
398 | mutex_lock(&dev->io_mutex); | |
399 | if (!(--dev->open_count) && dev->status == STATUS_STREAMING) | |
400 | hdpvr_stop_streaming(dev); | |
401 | ||
402 | mutex_unlock(&dev->io_mutex); | |
403 | ||
404 | return 0; | |
405 | } | |
406 | ||
407 | /* | |
408 | * hdpvr_v4l2_read() | |
409 | * will allocate buffers when called for the first time | |
410 | */ | |
411 | static ssize_t hdpvr_read(struct file *file, char __user *buffer, size_t count, | |
412 | loff_t *pos) | |
413 | { | |
414 | struct hdpvr_fh *fh = file->private_data; | |
415 | struct hdpvr_device *dev = fh->dev; | |
416 | struct hdpvr_buffer *buf = NULL; | |
417 | struct urb *urb; | |
418 | unsigned int ret = 0; | |
419 | int rem, cnt; | |
420 | ||
421 | if (*pos) | |
422 | return -ESPIPE; | |
423 | ||
424 | if (!dev) | |
425 | return -ENODEV; | |
426 | ||
427 | mutex_lock(&dev->io_mutex); | |
428 | if (dev->status == STATUS_IDLE) { | |
429 | if (hdpvr_start_streaming(dev)) { | |
9ef77adf JG |
430 | v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev, |
431 | "start_streaming failed\n"); | |
9aba42ef JG |
432 | ret = -EIO; |
433 | msleep(200); | |
434 | dev->status = STATUS_IDLE; | |
435 | mutex_unlock(&dev->io_mutex); | |
436 | goto err; | |
437 | } | |
d211bfcb | 438 | print_buffer_status(); |
9aba42ef JG |
439 | } |
440 | mutex_unlock(&dev->io_mutex); | |
441 | ||
442 | /* wait for the first buffer */ | |
443 | if (!(file->f_flags & O_NONBLOCK)) { | |
444 | if (wait_event_interruptible(dev->wait_data, | |
445 | hdpvr_get_next_buffer(dev))) | |
446 | return -ERESTARTSYS; | |
447 | } | |
448 | ||
449 | buf = hdpvr_get_next_buffer(dev); | |
450 | ||
451 | while (count > 0 && buf) { | |
452 | ||
453 | if (buf->status != BUFSTAT_READY && | |
454 | dev->status != STATUS_DISCONNECTED) { | |
455 | /* return nonblocking */ | |
456 | if (file->f_flags & O_NONBLOCK) { | |
457 | if (!ret) | |
458 | ret = -EAGAIN; | |
459 | goto err; | |
460 | } | |
461 | ||
462 | if (wait_event_interruptible(dev->wait_data, | |
463 | buf->status == BUFSTAT_READY)) { | |
464 | ret = -ERESTARTSYS; | |
465 | goto err; | |
466 | } | |
467 | } | |
468 | ||
469 | if (buf->status != BUFSTAT_READY) | |
470 | break; | |
471 | ||
472 | /* set remaining bytes to copy */ | |
473 | urb = buf->urb; | |
474 | rem = urb->actual_length - buf->pos; | |
475 | cnt = rem > count ? count : rem; | |
476 | ||
477 | if (copy_to_user(buffer, urb->transfer_buffer + buf->pos, | |
478 | cnt)) { | |
9ef77adf | 479 | v4l2_err(&dev->v4l2_dev, "read: copy_to_user failed\n"); |
9aba42ef JG |
480 | if (!ret) |
481 | ret = -EFAULT; | |
482 | goto err; | |
483 | } | |
484 | ||
485 | buf->pos += cnt; | |
486 | count -= cnt; | |
487 | buffer += cnt; | |
488 | ret += cnt; | |
489 | ||
490 | /* finished, take next buffer */ | |
491 | if (buf->pos == urb->actual_length) { | |
492 | mutex_lock(&dev->io_mutex); | |
493 | buf->pos = 0; | |
494 | buf->status = BUFSTAT_AVAILABLE; | |
495 | ||
496 | list_move_tail(&buf->buff_list, &dev->free_buff_list); | |
497 | ||
d211bfcb | 498 | print_buffer_status(); |
9aba42ef JG |
499 | |
500 | mutex_unlock(&dev->io_mutex); | |
501 | ||
502 | wake_up_interruptible(&dev->wait_buffer); | |
503 | ||
504 | buf = hdpvr_get_next_buffer(dev); | |
505 | } | |
506 | } | |
507 | err: | |
508 | if (!ret && !buf) | |
509 | ret = -EAGAIN; | |
510 | return ret; | |
511 | } | |
512 | ||
513 | static unsigned int hdpvr_poll(struct file *filp, poll_table *wait) | |
514 | { | |
d2ff3ec8 | 515 | struct hdpvr_buffer *buf = NULL; |
9aba42ef JG |
516 | struct hdpvr_fh *fh = (struct hdpvr_fh *)filp->private_data; |
517 | struct hdpvr_device *dev = fh->dev; | |
518 | unsigned int mask = 0; | |
519 | ||
520 | mutex_lock(&dev->io_mutex); | |
521 | ||
522 | if (video_is_unregistered(dev->video_dev)) | |
523 | return -EIO; | |
524 | ||
525 | if (dev->status == STATUS_IDLE) { | |
526 | if (hdpvr_start_streaming(dev)) { | |
9ef77adf JG |
527 | v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev, |
528 | "start_streaming failed\n"); | |
9aba42ef JG |
529 | dev->status = STATUS_IDLE; |
530 | } | |
531 | ||
d211bfcb | 532 | print_buffer_status(); |
9aba42ef JG |
533 | } |
534 | mutex_unlock(&dev->io_mutex); | |
535 | ||
d2ff3ec8 JG |
536 | buf = hdpvr_get_next_buffer(dev); |
537 | /* only wait if no data is available */ | |
538 | if (!buf || buf->status != BUFSTAT_READY) { | |
539 | poll_wait(filp, &dev->wait_data, wait); | |
540 | buf = hdpvr_get_next_buffer(dev); | |
9aba42ef | 541 | } |
d2ff3ec8 JG |
542 | if (buf && buf->status == BUFSTAT_READY) |
543 | mask |= POLLIN | POLLRDNORM; | |
9aba42ef JG |
544 | |
545 | return mask; | |
546 | } | |
547 | ||
548 | ||
9aba42ef JG |
549 | static const struct v4l2_file_operations hdpvr_fops = { |
550 | .owner = THIS_MODULE, | |
551 | .open = hdpvr_open, | |
552 | .release = hdpvr_release, | |
553 | .read = hdpvr_read, | |
554 | .poll = hdpvr_poll, | |
76717b88 | 555 | .unlocked_ioctl = video_ioctl2, |
9aba42ef JG |
556 | }; |
557 | ||
558 | /*=======================================================================*/ | |
559 | /* | |
560 | * V4L2 ioctl handling | |
561 | */ | |
562 | ||
563 | static int vidioc_querycap(struct file *file, void *priv, | |
564 | struct v4l2_capability *cap) | |
565 | { | |
566 | struct hdpvr_device *dev = video_drvdata(file); | |
567 | ||
568 | strcpy(cap->driver, "hdpvr"); | |
569 | strcpy(cap->card, "Haupauge HD PVR"); | |
570 | usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); | |
571 | cap->version = HDPVR_VERSION; | |
572 | cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | | |
573 | V4L2_CAP_AUDIO | | |
574 | V4L2_CAP_READWRITE; | |
575 | return 0; | |
576 | } | |
577 | ||
578 | static int vidioc_s_std(struct file *file, void *private_data, | |
579 | v4l2_std_id *std) | |
580 | { | |
581 | struct hdpvr_fh *fh = file->private_data; | |
582 | struct hdpvr_device *dev = fh->dev; | |
583 | u8 std_type = 1; | |
584 | ||
585 | if (*std & (V4L2_STD_NTSC | V4L2_STD_PAL_60)) | |
586 | std_type = 0; | |
587 | ||
588 | return hdpvr_config_call(dev, CTRL_VIDEO_STD_TYPE, std_type); | |
589 | } | |
590 | ||
591 | static const char *iname[] = { | |
592 | [HDPVR_COMPONENT] = "Component", | |
593 | [HDPVR_SVIDEO] = "S-Video", | |
594 | [HDPVR_COMPOSITE] = "Composite", | |
595 | }; | |
596 | ||
597 | static int vidioc_enum_input(struct file *file, void *priv, | |
598 | struct v4l2_input *i) | |
599 | { | |
600 | struct hdpvr_fh *fh = file->private_data; | |
601 | struct hdpvr_device *dev = fh->dev; | |
602 | unsigned int n; | |
603 | ||
604 | n = i->index; | |
605 | if (n >= HDPVR_VIDEO_INPUTS) | |
606 | return -EINVAL; | |
607 | ||
608 | i->type = V4L2_INPUT_TYPE_CAMERA; | |
609 | ||
610 | strncpy(i->name, iname[n], sizeof(i->name) - 1); | |
611 | i->name[sizeof(i->name) - 1] = '\0'; | |
612 | ||
613 | i->audioset = 1<<HDPVR_RCA_FRONT | 1<<HDPVR_RCA_BACK | 1<<HDPVR_SPDIF; | |
614 | ||
615 | i->std = dev->video_dev->tvnorms; | |
616 | ||
617 | return 0; | |
618 | } | |
619 | ||
620 | static int vidioc_s_input(struct file *file, void *private_data, | |
621 | unsigned int index) | |
622 | { | |
623 | struct hdpvr_fh *fh = file->private_data; | |
624 | struct hdpvr_device *dev = fh->dev; | |
625 | int retval; | |
626 | ||
627 | if (index >= HDPVR_VIDEO_INPUTS) | |
628 | return -EINVAL; | |
629 | ||
630 | if (dev->status != STATUS_IDLE) | |
631 | return -EAGAIN; | |
632 | ||
633 | retval = hdpvr_config_call(dev, CTRL_VIDEO_INPUT_VALUE, index+1); | |
634 | if (!retval) | |
635 | dev->options.video_input = index; | |
636 | ||
637 | return retval; | |
638 | } | |
639 | ||
640 | static int vidioc_g_input(struct file *file, void *private_data, | |
641 | unsigned int *index) | |
642 | { | |
643 | struct hdpvr_fh *fh = file->private_data; | |
644 | struct hdpvr_device *dev = fh->dev; | |
645 | ||
646 | *index = dev->options.video_input; | |
647 | return 0; | |
648 | } | |
649 | ||
650 | ||
651 | static const char *audio_iname[] = { | |
652 | [HDPVR_RCA_FRONT] = "RCA front", | |
653 | [HDPVR_RCA_BACK] = "RCA back", | |
654 | [HDPVR_SPDIF] = "SPDIF", | |
655 | }; | |
656 | ||
657 | static int vidioc_enumaudio(struct file *file, void *priv, | |
658 | struct v4l2_audio *audio) | |
659 | { | |
660 | unsigned int n; | |
661 | ||
662 | n = audio->index; | |
663 | if (n >= HDPVR_AUDIO_INPUTS) | |
664 | return -EINVAL; | |
665 | ||
666 | audio->capability = V4L2_AUDCAP_STEREO; | |
667 | ||
668 | strncpy(audio->name, audio_iname[n], sizeof(audio->name) - 1); | |
669 | audio->name[sizeof(audio->name) - 1] = '\0'; | |
670 | ||
671 | return 0; | |
672 | } | |
673 | ||
674 | static int vidioc_s_audio(struct file *file, void *private_data, | |
675 | struct v4l2_audio *audio) | |
676 | { | |
677 | struct hdpvr_fh *fh = file->private_data; | |
678 | struct hdpvr_device *dev = fh->dev; | |
679 | int retval; | |
680 | ||
681 | if (audio->index >= HDPVR_AUDIO_INPUTS) | |
682 | return -EINVAL; | |
683 | ||
684 | if (dev->status != STATUS_IDLE) | |
685 | return -EAGAIN; | |
686 | ||
687 | retval = hdpvr_set_audio(dev, audio->index+1, dev->options.audio_codec); | |
688 | if (!retval) | |
689 | dev->options.audio_input = audio->index; | |
690 | ||
691 | return retval; | |
692 | } | |
693 | ||
694 | static int vidioc_g_audio(struct file *file, void *private_data, | |
695 | struct v4l2_audio *audio) | |
696 | { | |
697 | struct hdpvr_fh *fh = file->private_data; | |
698 | struct hdpvr_device *dev = fh->dev; | |
699 | ||
700 | audio->index = dev->options.audio_input; | |
701 | audio->capability = V4L2_AUDCAP_STEREO; | |
702 | strncpy(audio->name, audio_iname[audio->index], sizeof(audio->name)); | |
703 | audio->name[sizeof(audio->name) - 1] = '\0'; | |
704 | return 0; | |
705 | } | |
706 | ||
707 | static const s32 supported_v4l2_ctrls[] = { | |
708 | V4L2_CID_BRIGHTNESS, | |
709 | V4L2_CID_CONTRAST, | |
710 | V4L2_CID_SATURATION, | |
711 | V4L2_CID_HUE, | |
712 | V4L2_CID_SHARPNESS, | |
713 | V4L2_CID_MPEG_AUDIO_ENCODING, | |
714 | V4L2_CID_MPEG_VIDEO_ENCODING, | |
715 | V4L2_CID_MPEG_VIDEO_BITRATE_MODE, | |
716 | V4L2_CID_MPEG_VIDEO_BITRATE, | |
717 | V4L2_CID_MPEG_VIDEO_BITRATE_PEAK, | |
718 | }; | |
719 | ||
720 | static int fill_queryctrl(struct hdpvr_options *opt, struct v4l2_queryctrl *qc, | |
721 | int ac3) | |
722 | { | |
723 | int err; | |
724 | ||
725 | switch (qc->id) { | |
726 | case V4L2_CID_BRIGHTNESS: | |
727 | return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x86); | |
728 | case V4L2_CID_CONTRAST: | |
729 | return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x80); | |
730 | case V4L2_CID_SATURATION: | |
731 | return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x80); | |
732 | case V4L2_CID_HUE: | |
733 | return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x80); | |
734 | case V4L2_CID_SHARPNESS: | |
735 | return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x80); | |
736 | case V4L2_CID_MPEG_AUDIO_ENCODING: | |
737 | return v4l2_ctrl_query_fill( | |
738 | qc, V4L2_MPEG_AUDIO_ENCODING_AAC, | |
739 | ac3 ? V4L2_MPEG_AUDIO_ENCODING_AC3 | |
740 | : V4L2_MPEG_AUDIO_ENCODING_AAC, | |
741 | 1, V4L2_MPEG_AUDIO_ENCODING_AAC); | |
742 | case V4L2_CID_MPEG_VIDEO_ENCODING: | |
743 | return v4l2_ctrl_query_fill( | |
744 | qc, V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC, | |
745 | V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC, 1, | |
746 | V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC); | |
747 | ||
748 | /* case V4L2_CID_MPEG_VIDEO_? maybe keyframe interval: */ | |
749 | /* return v4l2_ctrl_query_fill(qc, 0, 128, 128, 0); */ | |
750 | case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: | |
751 | return v4l2_ctrl_query_fill( | |
752 | qc, V4L2_MPEG_VIDEO_BITRATE_MODE_VBR, | |
753 | V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 1, | |
754 | V4L2_MPEG_VIDEO_BITRATE_MODE_CBR); | |
755 | ||
756 | case V4L2_CID_MPEG_VIDEO_BITRATE: | |
757 | return v4l2_ctrl_query_fill(qc, 1000000, 13500000, 100000, | |
758 | 6500000); | |
759 | case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: | |
760 | err = v4l2_ctrl_query_fill(qc, 1100000, 20200000, 100000, | |
761 | 9000000); | |
762 | if (!err && opt->bitrate_mode == HDPVR_CONSTANT) | |
763 | qc->flags |= V4L2_CTRL_FLAG_INACTIVE; | |
764 | return err; | |
765 | default: | |
766 | return -EINVAL; | |
767 | } | |
768 | } | |
769 | ||
770 | static int vidioc_queryctrl(struct file *file, void *private_data, | |
771 | struct v4l2_queryctrl *qc) | |
772 | { | |
773 | struct hdpvr_fh *fh = file->private_data; | |
774 | struct hdpvr_device *dev = fh->dev; | |
775 | int i, next; | |
776 | u32 id = qc->id; | |
777 | ||
778 | memset(qc, 0, sizeof(*qc)); | |
779 | ||
780 | next = !!(id & V4L2_CTRL_FLAG_NEXT_CTRL); | |
781 | qc->id = id & ~V4L2_CTRL_FLAG_NEXT_CTRL; | |
782 | ||
783 | for (i = 0; i < ARRAY_SIZE(supported_v4l2_ctrls); i++) { | |
784 | if (next) { | |
785 | if (qc->id < supported_v4l2_ctrls[i]) | |
786 | qc->id = supported_v4l2_ctrls[i]; | |
787 | else | |
788 | continue; | |
789 | } | |
790 | ||
791 | if (qc->id == supported_v4l2_ctrls[i]) | |
792 | return fill_queryctrl(&dev->options, qc, | |
793 | dev->flags & HDPVR_FLAG_AC3_CAP); | |
794 | ||
795 | if (qc->id < supported_v4l2_ctrls[i]) | |
796 | break; | |
797 | } | |
798 | ||
799 | return -EINVAL; | |
800 | } | |
801 | ||
802 | static int vidioc_g_ctrl(struct file *file, void *private_data, | |
803 | struct v4l2_control *ctrl) | |
804 | { | |
805 | struct hdpvr_fh *fh = file->private_data; | |
806 | struct hdpvr_device *dev = fh->dev; | |
807 | ||
808 | switch (ctrl->id) { | |
809 | case V4L2_CID_BRIGHTNESS: | |
810 | ctrl->value = dev->options.brightness; | |
811 | break; | |
812 | case V4L2_CID_CONTRAST: | |
813 | ctrl->value = dev->options.contrast; | |
814 | break; | |
815 | case V4L2_CID_SATURATION: | |
816 | ctrl->value = dev->options.saturation; | |
817 | break; | |
818 | case V4L2_CID_HUE: | |
819 | ctrl->value = dev->options.hue; | |
820 | break; | |
821 | case V4L2_CID_SHARPNESS: | |
822 | ctrl->value = dev->options.sharpness; | |
823 | break; | |
824 | default: | |
825 | return -EINVAL; | |
826 | } | |
827 | return 0; | |
828 | } | |
829 | ||
830 | static int vidioc_s_ctrl(struct file *file, void *private_data, | |
831 | struct v4l2_control *ctrl) | |
832 | { | |
833 | struct hdpvr_fh *fh = file->private_data; | |
834 | struct hdpvr_device *dev = fh->dev; | |
835 | int retval; | |
836 | ||
837 | switch (ctrl->id) { | |
838 | case V4L2_CID_BRIGHTNESS: | |
839 | retval = hdpvr_config_call(dev, CTRL_BRIGHTNESS, ctrl->value); | |
840 | if (!retval) | |
841 | dev->options.brightness = ctrl->value; | |
842 | break; | |
843 | case V4L2_CID_CONTRAST: | |
844 | retval = hdpvr_config_call(dev, CTRL_CONTRAST, ctrl->value); | |
845 | if (!retval) | |
846 | dev->options.contrast = ctrl->value; | |
847 | break; | |
848 | case V4L2_CID_SATURATION: | |
849 | retval = hdpvr_config_call(dev, CTRL_SATURATION, ctrl->value); | |
850 | if (!retval) | |
851 | dev->options.saturation = ctrl->value; | |
852 | break; | |
853 | case V4L2_CID_HUE: | |
854 | retval = hdpvr_config_call(dev, CTRL_HUE, ctrl->value); | |
855 | if (!retval) | |
856 | dev->options.hue = ctrl->value; | |
857 | break; | |
858 | case V4L2_CID_SHARPNESS: | |
859 | retval = hdpvr_config_call(dev, CTRL_SHARPNESS, ctrl->value); | |
860 | if (!retval) | |
861 | dev->options.sharpness = ctrl->value; | |
862 | break; | |
863 | default: | |
864 | return -EINVAL; | |
865 | } | |
866 | ||
867 | return retval; | |
868 | } | |
869 | ||
870 | ||
871 | static int hdpvr_get_ctrl(struct hdpvr_options *opt, | |
872 | struct v4l2_ext_control *ctrl) | |
873 | { | |
874 | switch (ctrl->id) { | |
875 | case V4L2_CID_MPEG_AUDIO_ENCODING: | |
876 | ctrl->value = opt->audio_codec; | |
877 | break; | |
878 | case V4L2_CID_MPEG_VIDEO_ENCODING: | |
879 | ctrl->value = V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC; | |
880 | break; | |
881 | /* case V4L2_CID_MPEG_VIDEO_B_FRAMES: */ | |
882 | /* ctrl->value = (opt->gop_mode & 0x2) ? 0 : 128; */ | |
883 | /* break; */ | |
884 | case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: | |
885 | ctrl->value = opt->bitrate_mode == HDPVR_CONSTANT | |
886 | ? V4L2_MPEG_VIDEO_BITRATE_MODE_CBR | |
887 | : V4L2_MPEG_VIDEO_BITRATE_MODE_VBR; | |
888 | break; | |
889 | case V4L2_CID_MPEG_VIDEO_BITRATE: | |
890 | ctrl->value = opt->bitrate * 100000; | |
891 | break; | |
892 | case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: | |
893 | ctrl->value = opt->peak_bitrate * 100000; | |
894 | break; | |
895 | case V4L2_CID_MPEG_STREAM_TYPE: | |
896 | ctrl->value = V4L2_MPEG_STREAM_TYPE_MPEG2_TS; | |
897 | break; | |
898 | default: | |
899 | return -EINVAL; | |
900 | } | |
901 | return 0; | |
902 | } | |
903 | ||
904 | static int vidioc_g_ext_ctrls(struct file *file, void *priv, | |
905 | struct v4l2_ext_controls *ctrls) | |
906 | { | |
907 | struct hdpvr_fh *fh = file->private_data; | |
908 | struct hdpvr_device *dev = fh->dev; | |
909 | int i, err = 0; | |
910 | ||
911 | if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) { | |
912 | for (i = 0; i < ctrls->count; i++) { | |
913 | struct v4l2_ext_control *ctrl = ctrls->controls + i; | |
914 | ||
915 | err = hdpvr_get_ctrl(&dev->options, ctrl); | |
916 | if (err) { | |
917 | ctrls->error_idx = i; | |
918 | break; | |
919 | } | |
920 | } | |
921 | return err; | |
922 | ||
923 | } | |
924 | ||
925 | return -EINVAL; | |
926 | } | |
927 | ||
928 | ||
929 | static int hdpvr_try_ctrl(struct v4l2_ext_control *ctrl, int ac3) | |
930 | { | |
931 | int ret = -EINVAL; | |
932 | ||
933 | switch (ctrl->id) { | |
934 | case V4L2_CID_MPEG_AUDIO_ENCODING: | |
935 | if (ctrl->value == V4L2_MPEG_AUDIO_ENCODING_AAC || | |
936 | (ac3 && ctrl->value == V4L2_MPEG_AUDIO_ENCODING_AC3)) | |
937 | ret = 0; | |
938 | break; | |
939 | case V4L2_CID_MPEG_VIDEO_ENCODING: | |
940 | if (ctrl->value == V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC) | |
941 | ret = 0; | |
942 | break; | |
943 | /* case V4L2_CID_MPEG_VIDEO_B_FRAMES: */ | |
944 | /* if (ctrl->value == 0 || ctrl->value == 128) */ | |
945 | /* ret = 0; */ | |
946 | /* break; */ | |
947 | case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: | |
948 | if (ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR || | |
949 | ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR) | |
950 | ret = 0; | |
951 | break; | |
952 | case V4L2_CID_MPEG_VIDEO_BITRATE: | |
953 | { | |
954 | uint bitrate = ctrl->value / 100000; | |
955 | if (bitrate >= 10 && bitrate <= 135) | |
956 | ret = 0; | |
957 | break; | |
958 | } | |
959 | case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: | |
960 | { | |
961 | uint peak_bitrate = ctrl->value / 100000; | |
962 | if (peak_bitrate >= 10 && peak_bitrate <= 202) | |
963 | ret = 0; | |
964 | break; | |
965 | } | |
966 | case V4L2_CID_MPEG_STREAM_TYPE: | |
967 | if (ctrl->value == V4L2_MPEG_STREAM_TYPE_MPEG2_TS) | |
968 | ret = 0; | |
969 | break; | |
970 | default: | |
971 | return -EINVAL; | |
972 | } | |
973 | return 0; | |
974 | } | |
975 | ||
976 | static int vidioc_try_ext_ctrls(struct file *file, void *priv, | |
977 | struct v4l2_ext_controls *ctrls) | |
978 | { | |
979 | struct hdpvr_fh *fh = file->private_data; | |
980 | struct hdpvr_device *dev = fh->dev; | |
981 | int i, err = 0; | |
982 | ||
983 | if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) { | |
984 | for (i = 0; i < ctrls->count; i++) { | |
985 | struct v4l2_ext_control *ctrl = ctrls->controls + i; | |
986 | ||
987 | err = hdpvr_try_ctrl(ctrl, | |
988 | dev->flags & HDPVR_FLAG_AC3_CAP); | |
989 | if (err) { | |
990 | ctrls->error_idx = i; | |
991 | break; | |
992 | } | |
993 | } | |
994 | return err; | |
995 | } | |
996 | ||
997 | return -EINVAL; | |
998 | } | |
999 | ||
1000 | ||
1001 | static int hdpvr_set_ctrl(struct hdpvr_device *dev, | |
1002 | struct v4l2_ext_control *ctrl) | |
1003 | { | |
1004 | struct hdpvr_options *opt = &dev->options; | |
1005 | int ret = 0; | |
1006 | ||
1007 | switch (ctrl->id) { | |
1008 | case V4L2_CID_MPEG_AUDIO_ENCODING: | |
1009 | if (dev->flags & HDPVR_FLAG_AC3_CAP) { | |
1010 | opt->audio_codec = ctrl->value; | |
1011 | ret = hdpvr_set_audio(dev, opt->audio_input, | |
1012 | opt->audio_codec); | |
1013 | } | |
1014 | break; | |
1015 | case V4L2_CID_MPEG_VIDEO_ENCODING: | |
1016 | break; | |
1017 | /* case V4L2_CID_MPEG_VIDEO_B_FRAMES: */ | |
1018 | /* if (ctrl->value == 0 && !(opt->gop_mode & 0x2)) { */ | |
1019 | /* opt->gop_mode |= 0x2; */ | |
1020 | /* hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, */ | |
1021 | /* opt->gop_mode); */ | |
1022 | /* } */ | |
1023 | /* if (ctrl->value == 128 && opt->gop_mode & 0x2) { */ | |
1024 | /* opt->gop_mode &= ~0x2; */ | |
1025 | /* hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, */ | |
1026 | /* opt->gop_mode); */ | |
1027 | /* } */ | |
1028 | /* break; */ | |
1029 | case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: | |
1030 | if (ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR && | |
1031 | opt->bitrate_mode != HDPVR_CONSTANT) { | |
1032 | opt->bitrate_mode = HDPVR_CONSTANT; | |
1033 | hdpvr_config_call(dev, CTRL_BITRATE_MODE_VALUE, | |
1034 | opt->bitrate_mode); | |
1035 | } | |
1036 | if (ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR && | |
1037 | opt->bitrate_mode == HDPVR_CONSTANT) { | |
1038 | opt->bitrate_mode = HDPVR_VARIABLE_AVERAGE; | |
1039 | hdpvr_config_call(dev, CTRL_BITRATE_MODE_VALUE, | |
1040 | opt->bitrate_mode); | |
1041 | } | |
1042 | break; | |
1043 | case V4L2_CID_MPEG_VIDEO_BITRATE: { | |
1044 | uint bitrate = ctrl->value / 100000; | |
1045 | ||
1046 | opt->bitrate = bitrate; | |
1047 | if (bitrate >= opt->peak_bitrate) | |
1048 | opt->peak_bitrate = bitrate+1; | |
1049 | ||
1050 | hdpvr_set_bitrate(dev); | |
1051 | break; | |
1052 | } | |
1053 | case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: { | |
1054 | uint peak_bitrate = ctrl->value / 100000; | |
1055 | ||
1056 | if (opt->bitrate_mode == HDPVR_CONSTANT) | |
1057 | break; | |
1058 | ||
1059 | if (opt->bitrate < peak_bitrate) { | |
1060 | opt->peak_bitrate = peak_bitrate; | |
1061 | hdpvr_set_bitrate(dev); | |
1062 | } else | |
1063 | ret = -EINVAL; | |
1064 | break; | |
1065 | } | |
1066 | case V4L2_CID_MPEG_STREAM_TYPE: | |
1067 | break; | |
1068 | default: | |
1069 | return -EINVAL; | |
1070 | } | |
1071 | return ret; | |
1072 | } | |
1073 | ||
1074 | static int vidioc_s_ext_ctrls(struct file *file, void *priv, | |
1075 | struct v4l2_ext_controls *ctrls) | |
1076 | { | |
1077 | struct hdpvr_fh *fh = file->private_data; | |
1078 | struct hdpvr_device *dev = fh->dev; | |
1079 | int i, err = 0; | |
1080 | ||
1081 | if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) { | |
1082 | for (i = 0; i < ctrls->count; i++) { | |
1083 | struct v4l2_ext_control *ctrl = ctrls->controls + i; | |
1084 | ||
1085 | err = hdpvr_try_ctrl(ctrl, | |
1086 | dev->flags & HDPVR_FLAG_AC3_CAP); | |
1087 | if (err) { | |
1088 | ctrls->error_idx = i; | |
1089 | break; | |
1090 | } | |
1091 | err = hdpvr_set_ctrl(dev, ctrl); | |
1092 | if (err) { | |
1093 | ctrls->error_idx = i; | |
1094 | break; | |
1095 | } | |
1096 | } | |
1097 | return err; | |
1098 | ||
1099 | } | |
1100 | ||
1101 | return -EINVAL; | |
1102 | } | |
1103 | ||
1104 | static int vidioc_enum_fmt_vid_cap(struct file *file, void *private_data, | |
1105 | struct v4l2_fmtdesc *f) | |
1106 | { | |
1107 | ||
1108 | if (f->index != 0 || f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
1109 | return -EINVAL; | |
1110 | ||
1111 | f->flags = V4L2_FMT_FLAG_COMPRESSED; | |
1112 | strncpy(f->description, "MPEG2-TS with AVC/AAC streams", 32); | |
1113 | f->pixelformat = V4L2_PIX_FMT_MPEG; | |
1114 | ||
1115 | return 0; | |
1116 | } | |
1117 | ||
1118 | static int vidioc_g_fmt_vid_cap(struct file *file, void *private_data, | |
1119 | struct v4l2_format *f) | |
1120 | { | |
1121 | struct hdpvr_fh *fh = file->private_data; | |
1122 | struct hdpvr_device *dev = fh->dev; | |
1123 | struct hdpvr_video_info *vid_info; | |
1124 | ||
1125 | if (!dev) | |
1126 | return -ENODEV; | |
1127 | ||
1128 | vid_info = get_video_info(dev); | |
1129 | if (!vid_info) | |
1130 | return -EFAULT; | |
1131 | ||
1132 | f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1133 | f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG; | |
1134 | f->fmt.pix.width = vid_info->width; | |
1135 | f->fmt.pix.height = vid_info->height; | |
1136 | f->fmt.pix.sizeimage = dev->bulk_in_size; | |
1137 | f->fmt.pix.colorspace = 0; | |
1138 | f->fmt.pix.bytesperline = 0; | |
1139 | f->fmt.pix.field = V4L2_FIELD_ANY; | |
1140 | ||
1141 | kfree(vid_info); | |
1142 | return 0; | |
1143 | } | |
1144 | ||
76717b88 JG |
1145 | static int vidioc_encoder_cmd(struct file *filp, void *priv, |
1146 | struct v4l2_encoder_cmd *a) | |
1147 | { | |
1148 | struct hdpvr_fh *fh = filp->private_data; | |
1149 | struct hdpvr_device *dev = fh->dev; | |
1150 | int res; | |
1151 | ||
1152 | mutex_lock(&dev->io_mutex); | |
1153 | ||
1154 | memset(&a->raw, 0, sizeof(a->raw)); | |
1155 | switch (a->cmd) { | |
1156 | case V4L2_ENC_CMD_START: | |
1157 | a->flags = 0; | |
1158 | res = hdpvr_start_streaming(dev); | |
1159 | break; | |
1160 | case V4L2_ENC_CMD_STOP: | |
1161 | res = hdpvr_stop_streaming(dev); | |
1162 | break; | |
1163 | default: | |
9ef77adf | 1164 | v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev, |
76717b88 | 1165 | "Unsupported encoder cmd %d\n", a->cmd); |
48f98f75 | 1166 | res = -EINVAL; |
76717b88 JG |
1167 | } |
1168 | mutex_unlock(&dev->io_mutex); | |
1169 | return res; | |
1170 | } | |
1171 | ||
1172 | static int vidioc_try_encoder_cmd(struct file *filp, void *priv, | |
1173 | struct v4l2_encoder_cmd *a) | |
1174 | { | |
1175 | switch (a->cmd) { | |
1176 | case V4L2_ENC_CMD_START: | |
1177 | case V4L2_ENC_CMD_STOP: | |
1178 | return 0; | |
1179 | default: | |
1180 | return -EINVAL; | |
1181 | } | |
1182 | } | |
9aba42ef JG |
1183 | |
1184 | static const struct v4l2_ioctl_ops hdpvr_ioctl_ops = { | |
1185 | .vidioc_querycap = vidioc_querycap, | |
1186 | .vidioc_s_std = vidioc_s_std, | |
1187 | .vidioc_enum_input = vidioc_enum_input, | |
1188 | .vidioc_g_input = vidioc_g_input, | |
1189 | .vidioc_s_input = vidioc_s_input, | |
1190 | .vidioc_enumaudio = vidioc_enumaudio, | |
1191 | .vidioc_g_audio = vidioc_g_audio, | |
1192 | .vidioc_s_audio = vidioc_s_audio, | |
1193 | .vidioc_queryctrl = vidioc_queryctrl, | |
1194 | .vidioc_g_ctrl = vidioc_g_ctrl, | |
1195 | .vidioc_s_ctrl = vidioc_s_ctrl, | |
1196 | .vidioc_g_ext_ctrls = vidioc_g_ext_ctrls, | |
1197 | .vidioc_s_ext_ctrls = vidioc_s_ext_ctrls, | |
1198 | .vidioc_try_ext_ctrls = vidioc_try_ext_ctrls, | |
1199 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, | |
1200 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, | |
76717b88 JG |
1201 | .vidioc_encoder_cmd = vidioc_encoder_cmd, |
1202 | .vidioc_try_encoder_cmd = vidioc_try_encoder_cmd, | |
9aba42ef JG |
1203 | }; |
1204 | ||
1205 | static void hdpvr_device_release(struct video_device *vdev) | |
1206 | { | |
1207 | struct hdpvr_device *dev = video_get_drvdata(vdev); | |
1208 | ||
1209 | hdpvr_delete(dev); | |
1210 | } | |
1211 | ||
1212 | static const struct video_device hdpvr_video_template = { | |
1213 | /* .type = VFL_TYPE_GRABBER, */ | |
1214 | /* .type2 = VID_TYPE_CAPTURE | VID_TYPE_MPEG_ENCODER, */ | |
1215 | .fops = &hdpvr_fops, | |
1216 | .release = hdpvr_device_release, | |
1217 | .ioctl_ops = &hdpvr_ioctl_ops, | |
1218 | .tvnorms = | |
1219 | V4L2_STD_NTSC | V4L2_STD_SECAM | V4L2_STD_PAL_B | | |
1220 | V4L2_STD_PAL_G | V4L2_STD_PAL_H | V4L2_STD_PAL_I | | |
1221 | V4L2_STD_PAL_D | V4L2_STD_PAL_M | V4L2_STD_PAL_N | | |
1222 | V4L2_STD_PAL_60, | |
1223 | }; | |
1224 | ||
a50ab291 JG |
1225 | int hdpvr_register_videodev(struct hdpvr_device *dev, struct device *parent, |
1226 | int devnum) | |
9aba42ef JG |
1227 | { |
1228 | /* setup and register video device */ | |
1229 | dev->video_dev = video_device_alloc(); | |
1230 | if (!dev->video_dev) { | |
9ef77adf | 1231 | v4l2_err(&dev->v4l2_dev, "video_device_alloc() failed\n"); |
9aba42ef JG |
1232 | goto error; |
1233 | } | |
1234 | ||
1235 | *(dev->video_dev) = hdpvr_video_template; | |
1236 | strcpy(dev->video_dev->name, "Hauppauge HD PVR"); | |
a50ab291 | 1237 | dev->video_dev->parent = parent; |
9aba42ef JG |
1238 | video_set_drvdata(dev->video_dev, dev); |
1239 | ||
1240 | if (video_register_device(dev->video_dev, VFL_TYPE_GRABBER, devnum)) { | |
9ef77adf | 1241 | v4l2_err(&dev->v4l2_dev, "video_device registration failed\n"); |
9aba42ef JG |
1242 | goto error; |
1243 | } | |
1244 | ||
1245 | return 0; | |
1246 | error: | |
1247 | return -ENOMEM; | |
1248 | } |