1
2
3
4
5
6
7
8
9
10
11
12#include <linux/kernel.h>
13#include <linux/kconfig.h>
14#include <linux/errno.h>
15#include <linux/init.h>
16#include <linux/slab.h>
17#include <linux/module.h>
18#include <linux/uaccess.h>
19#include <linux/usb.h>
20#include <linux/mutex.h>
21#include <linux/workqueue.h>
22
23#include <linux/videodev2.h>
24#include <linux/v4l2-dv-timings.h>
25#include <media/v4l2-dev.h>
26#include <media/v4l2-common.h>
27#include <media/v4l2-ioctl.h>
28#include <media/v4l2-event.h>
29#include "hdpvr.h"
30
31#define BULK_URB_TIMEOUT 90
32
33#define print_buffer_status() { \
34 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev, \
35 "%s:%d buffer stat: %d free, %d proc\n", \
36 __func__, __LINE__, \
37 list_size(&dev->free_buff_list), \
38 list_size(&dev->rec_buff_list)); }
39
40static const struct v4l2_dv_timings hdpvr_dv_timings[] = {
41 V4L2_DV_BT_CEA_720X480I59_94,
42 V4L2_DV_BT_CEA_720X576I50,
43 V4L2_DV_BT_CEA_720X480P59_94,
44 V4L2_DV_BT_CEA_720X576P50,
45 V4L2_DV_BT_CEA_1280X720P50,
46 V4L2_DV_BT_CEA_1280X720P60,
47 V4L2_DV_BT_CEA_1920X1080I50,
48 V4L2_DV_BT_CEA_1920X1080I60,
49};
50
51
52#define HDPVR_DEF_DV_TIMINGS_IDX (0)
53
54struct hdpvr_fh {
55 struct v4l2_fh fh;
56 bool legacy_mode;
57};
58
59static uint list_size(struct list_head *list)
60{
61 struct list_head *tmp;
62 uint count = 0;
63
64 list_for_each(tmp, list) {
65 count++;
66 }
67
68 return count;
69}
70
71
72
73static void hdpvr_read_bulk_callback(struct urb *urb)
74{
75 struct hdpvr_buffer *buf = (struct hdpvr_buffer *)urb->context;
76 struct hdpvr_device *dev = buf->dev;
77
78
79 buf->status = BUFSTAT_READY;
80 wake_up_interruptible(&dev->wait_data);
81}
82
83
84
85
86
87int hdpvr_cancel_queue(struct hdpvr_device *dev)
88{
89 struct hdpvr_buffer *buf;
90
91 list_for_each_entry(buf, &dev->rec_buff_list, buff_list) {
92 usb_kill_urb(buf->urb);
93 buf->status = BUFSTAT_AVAILABLE;
94 }
95
96 list_splice_init(&dev->rec_buff_list, dev->free_buff_list.prev);
97
98 return 0;
99}
100
101static int hdpvr_free_queue(struct list_head *q)
102{
103 struct list_head *tmp;
104 struct list_head *p;
105 struct hdpvr_buffer *buf;
106 struct urb *urb;
107
108 for (p = q->next; p != q;) {
109 buf = list_entry(p, struct hdpvr_buffer, buff_list);
110
111 urb = buf->urb;
112 usb_free_coherent(urb->dev, urb->transfer_buffer_length,
113 urb->transfer_buffer, urb->transfer_dma);
114 usb_free_urb(urb);
115 tmp = p->next;
116 list_del(p);
117 kfree(buf);
118 p = tmp;
119 }
120
121 return 0;
122}
123
124
125int hdpvr_free_buffers(struct hdpvr_device *dev)
126{
127 hdpvr_cancel_queue(dev);
128
129 hdpvr_free_queue(&dev->free_buff_list);
130 hdpvr_free_queue(&dev->rec_buff_list);
131
132 return 0;
133}
134
135
136int hdpvr_alloc_buffers(struct hdpvr_device *dev, uint count)
137{
138 uint i;
139 int retval = -ENOMEM;
140 u8 *mem;
141 struct hdpvr_buffer *buf;
142 struct urb *urb;
143
144 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
145 "allocating %u buffers\n", count);
146
147 for (i = 0; i < count; i++) {
148
149 buf = kzalloc(sizeof(struct hdpvr_buffer), GFP_KERNEL);
150 if (!buf) {
151 v4l2_err(&dev->v4l2_dev, "cannot allocate buffer\n");
152 goto exit;
153 }
154 buf->dev = dev;
155
156 urb = usb_alloc_urb(0, GFP_KERNEL);
157 if (!urb) {
158 v4l2_err(&dev->v4l2_dev, "cannot allocate urb\n");
159 goto exit_urb;
160 }
161 buf->urb = urb;
162
163 mem = usb_alloc_coherent(dev->udev, dev->bulk_in_size, GFP_KERNEL,
164 &urb->transfer_dma);
165 if (!mem) {
166 v4l2_err(&dev->v4l2_dev,
167 "cannot allocate usb transfer buffer\n");
168 goto exit_urb_buffer;
169 }
170
171 usb_fill_bulk_urb(buf->urb, dev->udev,
172 usb_rcvbulkpipe(dev->udev,
173 dev->bulk_in_endpointAddr),
174 mem, dev->bulk_in_size,
175 hdpvr_read_bulk_callback, buf);
176
177 buf->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
178 buf->status = BUFSTAT_AVAILABLE;
179 list_add_tail(&buf->buff_list, &dev->free_buff_list);
180 }
181 return 0;
182exit_urb_buffer:
183 usb_free_urb(urb);
184exit_urb:
185 kfree(buf);
186exit:
187 hdpvr_free_buffers(dev);
188 return retval;
189}
190
191static int hdpvr_submit_buffers(struct hdpvr_device *dev)
192{
193 struct hdpvr_buffer *buf;
194 struct urb *urb;
195 int ret = 0, err_count = 0;
196
197 mutex_lock(&dev->io_mutex);
198
199 while (dev->status == STATUS_STREAMING &&
200 !list_empty(&dev->free_buff_list)) {
201
202 buf = list_entry(dev->free_buff_list.next, struct hdpvr_buffer,
203 buff_list);
204 if (buf->status != BUFSTAT_AVAILABLE) {
205 v4l2_err(&dev->v4l2_dev,
206 "buffer not marked as available\n");
207 ret = -EFAULT;
208 goto err;
209 }
210
211 urb = buf->urb;
212 urb->status = 0;
213 urb->actual_length = 0;
214 ret = usb_submit_urb(urb, GFP_KERNEL);
215 if (ret) {
216 v4l2_err(&dev->v4l2_dev,
217 "usb_submit_urb in %s returned %d\n",
218 __func__, ret);
219 if (++err_count > 2)
220 break;
221 continue;
222 }
223 buf->status = BUFSTAT_INPROGRESS;
224 list_move_tail(&buf->buff_list, &dev->rec_buff_list);
225 }
226err:
227 print_buffer_status();
228 mutex_unlock(&dev->io_mutex);
229 return ret;
230}
231
232static struct hdpvr_buffer *hdpvr_get_next_buffer(struct hdpvr_device *dev)
233{
234 struct hdpvr_buffer *buf;
235
236 mutex_lock(&dev->io_mutex);
237
238 if (list_empty(&dev->rec_buff_list)) {
239 mutex_unlock(&dev->io_mutex);
240 return NULL;
241 }
242
243 buf = list_entry(dev->rec_buff_list.next, struct hdpvr_buffer,
244 buff_list);
245 mutex_unlock(&dev->io_mutex);
246
247 return buf;
248}
249
250static void hdpvr_transmit_buffers(struct work_struct *work)
251{
252 struct hdpvr_device *dev = container_of(work, struct hdpvr_device,
253 worker);
254
255 while (dev->status == STATUS_STREAMING) {
256
257 if (hdpvr_submit_buffers(dev)) {
258 v4l2_err(&dev->v4l2_dev, "couldn't submit buffers\n");
259 goto error;
260 }
261 if (wait_event_interruptible(dev->wait_buffer,
262 !list_empty(&dev->free_buff_list) ||
263 dev->status != STATUS_STREAMING))
264 goto error;
265 }
266
267 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
268 "transmit worker exited\n");
269 return;
270error:
271 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
272 "transmit buffers errored\n");
273 dev->status = STATUS_ERROR;
274}
275
276
277static int hdpvr_start_streaming(struct hdpvr_device *dev)
278{
279 int ret;
280 struct hdpvr_video_info *vidinf;
281
282 if (dev->status == STATUS_STREAMING)
283 return 0;
284 else if (dev->status != STATUS_IDLE)
285 return -EAGAIN;
286
287 vidinf = get_video_info(dev);
288
289 if (vidinf) {
290 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
291 "video signal: %dx%d@%dhz\n", vidinf->width,
292 vidinf->height, vidinf->fps);
293 kfree(vidinf);
294
295
296 ret = usb_control_msg(dev->udev,
297 usb_sndctrlpipe(dev->udev, 0),
298 0xb8, 0x38, 0x1, 0, NULL, 0, 8000);
299 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
300 "encoder start control request returned %d\n", ret);
301
302 hdpvr_config_call(dev, CTRL_START_STREAMING_VALUE, 0x00);
303
304 dev->status = STATUS_STREAMING;
305
306 INIT_WORK(&dev->worker, hdpvr_transmit_buffers);
307 queue_work(dev->workqueue, &dev->worker);
308
309 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
310 "streaming started\n");
311
312 return 0;
313 }
314 msleep(250);
315 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
316 "no video signal at input %d\n", dev->options.video_input);
317 return -EAGAIN;
318}
319
320
321
322static int hdpvr_stop_streaming(struct hdpvr_device *dev)
323{
324 int actual_length;
325 uint c = 0;
326 u8 *buf;
327
328 if (dev->status == STATUS_IDLE)
329 return 0;
330 else if (dev->status != STATUS_STREAMING)
331 return -EAGAIN;
332
333 buf = kmalloc(dev->bulk_in_size, GFP_KERNEL);
334 if (!buf)
335 v4l2_err(&dev->v4l2_dev, "failed to allocate temporary buffer "
336 "for emptying the internal device buffer. "
337 "Next capture start will be slow\n");
338
339 dev->status = STATUS_SHUTTING_DOWN;
340 hdpvr_config_call(dev, CTRL_STOP_STREAMING_VALUE, 0x00);
341 mutex_unlock(&dev->io_mutex);
342
343 wake_up_interruptible(&dev->wait_buffer);
344 msleep(50);
345
346 flush_workqueue(dev->workqueue);
347
348 mutex_lock(&dev->io_mutex);
349
350 hdpvr_cancel_queue(dev);
351
352
353 while (buf && ++c < 500 &&
354 !usb_bulk_msg(dev->udev,
355 usb_rcvbulkpipe(dev->udev,
356 dev->bulk_in_endpointAddr),
357 buf, dev->bulk_in_size, &actual_length,
358 BULK_URB_TIMEOUT)) {
359 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
360 "%2d: got %d bytes\n", c, actual_length);
361 }
362 kfree(buf);
363 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
364 "used %d urbs to empty device buffers\n", c-1);
365 msleep(10);
366
367 dev->status = STATUS_IDLE;
368
369 return 0;
370}
371
372
373
374
375
376
377
378static int hdpvr_open(struct file *file)
379{
380 struct hdpvr_fh *fh = kzalloc(sizeof(*fh), GFP_KERNEL);
381
382 if (fh == NULL)
383 return -ENOMEM;
384 fh->legacy_mode = true;
385 v4l2_fh_init(&fh->fh, video_devdata(file));
386 v4l2_fh_add(&fh->fh);
387 file->private_data = fh;
388 return 0;
389}
390
391static int hdpvr_release(struct file *file)
392{
393 struct hdpvr_device *dev = video_drvdata(file);
394
395 mutex_lock(&dev->io_mutex);
396 if (file->private_data == dev->owner) {
397 hdpvr_stop_streaming(dev);
398 dev->owner = NULL;
399 }
400 mutex_unlock(&dev->io_mutex);
401
402 return v4l2_fh_release(file);
403}
404
405
406
407
408
409static ssize_t hdpvr_read(struct file *file, char __user *buffer, size_t count,
410 loff_t *pos)
411{
412 struct hdpvr_device *dev = video_drvdata(file);
413 struct hdpvr_buffer *buf = NULL;
414 struct urb *urb;
415 unsigned int ret = 0;
416 int rem, cnt;
417
418 if (*pos)
419 return -ESPIPE;
420
421 mutex_lock(&dev->io_mutex);
422 if (dev->status == STATUS_IDLE) {
423 if (hdpvr_start_streaming(dev)) {
424 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
425 "start_streaming failed\n");
426 ret = -EIO;
427 msleep(200);
428 dev->status = STATUS_IDLE;
429 mutex_unlock(&dev->io_mutex);
430 goto err;
431 }
432 dev->owner = file->private_data;
433 print_buffer_status();
434 }
435 mutex_unlock(&dev->io_mutex);
436
437
438 if (!(file->f_flags & O_NONBLOCK)) {
439 if (wait_event_interruptible(dev->wait_data,
440 hdpvr_get_next_buffer(dev)))
441 return -ERESTARTSYS;
442 }
443
444 buf = hdpvr_get_next_buffer(dev);
445
446 while (count > 0 && buf) {
447
448 if (buf->status != BUFSTAT_READY &&
449 dev->status != STATUS_DISCONNECTED) {
450
451 if (file->f_flags & O_NONBLOCK) {
452 if (!ret)
453 ret = -EAGAIN;
454 goto err;
455 }
456
457 if (wait_event_interruptible(dev->wait_data,
458 buf->status == BUFSTAT_READY)) {
459 ret = -ERESTARTSYS;
460 goto err;
461 }
462 }
463
464 if (buf->status != BUFSTAT_READY)
465 break;
466
467
468 urb = buf->urb;
469 rem = urb->actual_length - buf->pos;
470 cnt = rem > count ? count : rem;
471
472 if (copy_to_user(buffer, urb->transfer_buffer + buf->pos,
473 cnt)) {
474 v4l2_err(&dev->v4l2_dev, "read: copy_to_user failed\n");
475 if (!ret)
476 ret = -EFAULT;
477 goto err;
478 }
479
480 buf->pos += cnt;
481 count -= cnt;
482 buffer += cnt;
483 ret += cnt;
484
485
486 if (buf->pos == urb->actual_length) {
487 mutex_lock(&dev->io_mutex);
488 buf->pos = 0;
489 buf->status = BUFSTAT_AVAILABLE;
490
491 list_move_tail(&buf->buff_list, &dev->free_buff_list);
492
493 print_buffer_status();
494
495 mutex_unlock(&dev->io_mutex);
496
497 wake_up_interruptible(&dev->wait_buffer);
498
499 buf = hdpvr_get_next_buffer(dev);
500 }
501 }
502err:
503 if (!ret && !buf)
504 ret = -EAGAIN;
505 return ret;
506}
507
508static unsigned int hdpvr_poll(struct file *filp, poll_table *wait)
509{
510 unsigned long req_events = poll_requested_events(wait);
511 struct hdpvr_buffer *buf = NULL;
512 struct hdpvr_device *dev = video_drvdata(filp);
513 unsigned int mask = v4l2_ctrl_poll(filp, wait);
514
515 if (!(req_events & (POLLIN | POLLRDNORM)))
516 return mask;
517
518 mutex_lock(&dev->io_mutex);
519
520 if (dev->status == STATUS_IDLE) {
521 if (hdpvr_start_streaming(dev)) {
522 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
523 "start_streaming failed\n");
524 dev->status = STATUS_IDLE;
525 } else {
526 dev->owner = filp->private_data;
527 }
528
529 print_buffer_status();
530 }
531 mutex_unlock(&dev->io_mutex);
532
533 buf = hdpvr_get_next_buffer(dev);
534
535 if (!buf || buf->status != BUFSTAT_READY) {
536 poll_wait(filp, &dev->wait_data, wait);
537 buf = hdpvr_get_next_buffer(dev);
538 }
539 if (buf && buf->status == BUFSTAT_READY)
540 mask |= POLLIN | POLLRDNORM;
541
542 return mask;
543}
544
545
546static const struct v4l2_file_operations hdpvr_fops = {
547 .owner = THIS_MODULE,
548 .open = hdpvr_open,
549 .release = hdpvr_release,
550 .read = hdpvr_read,
551 .poll = hdpvr_poll,
552 .unlocked_ioctl = video_ioctl2,
553};
554
555
556
557
558
559
560static int vidioc_querycap(struct file *file, void *priv,
561 struct v4l2_capability *cap)
562{
563 struct hdpvr_device *dev = video_drvdata(file);
564
565 strcpy(cap->driver, "hdpvr");
566 strcpy(cap->card, "Hauppauge HD PVR");
567 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
568 cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_AUDIO |
569 V4L2_CAP_READWRITE;
570 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
571 return 0;
572}
573
574static int vidioc_s_std(struct file *file, void *_fh,
575 v4l2_std_id std)
576{
577 struct hdpvr_device *dev = video_drvdata(file);
578 struct hdpvr_fh *fh = _fh;
579 u8 std_type = 1;
580
581 if (!fh->legacy_mode && dev->options.video_input == HDPVR_COMPONENT)
582 return -ENODATA;
583 if (dev->status != STATUS_IDLE)
584 return -EBUSY;
585 if (std & V4L2_STD_525_60)
586 std_type = 0;
587 dev->cur_std = std;
588 dev->width = 720;
589 dev->height = std_type ? 576 : 480;
590
591 return hdpvr_config_call(dev, CTRL_VIDEO_STD_TYPE, std_type);
592}
593
594static int vidioc_g_std(struct file *file, void *_fh,
595 v4l2_std_id *std)
596{
597 struct hdpvr_device *dev = video_drvdata(file);
598 struct hdpvr_fh *fh = _fh;
599
600 if (!fh->legacy_mode && dev->options.video_input == HDPVR_COMPONENT)
601 return -ENODATA;
602 *std = dev->cur_std;
603 return 0;
604}
605
606static int vidioc_querystd(struct file *file, void *_fh, v4l2_std_id *a)
607{
608 struct hdpvr_device *dev = video_drvdata(file);
609 struct hdpvr_video_info *vid_info;
610 struct hdpvr_fh *fh = _fh;
611
612 *a = V4L2_STD_ALL;
613 if (dev->options.video_input == HDPVR_COMPONENT)
614 return fh->legacy_mode ? 0 : -ENODATA;
615 vid_info = get_video_info(dev);
616 if (vid_info == NULL)
617 return 0;
618 if (vid_info->width == 720 &&
619 (vid_info->height == 480 || vid_info->height == 576)) {
620 *a = (vid_info->height == 480) ?
621 V4L2_STD_525_60 : V4L2_STD_625_50;
622 }
623 kfree(vid_info);
624 return 0;
625}
626
627static int vidioc_s_dv_timings(struct file *file, void *_fh,
628 struct v4l2_dv_timings *timings)
629{
630 struct hdpvr_device *dev = video_drvdata(file);
631 struct hdpvr_fh *fh = _fh;
632 int i;
633
634 fh->legacy_mode = false;
635 if (dev->options.video_input)
636 return -ENODATA;
637 if (dev->status != STATUS_IDLE)
638 return -EBUSY;
639 for (i = 0; i < ARRAY_SIZE(hdpvr_dv_timings); i++)
640 if (v4l_match_dv_timings(timings, hdpvr_dv_timings + i, 0))
641 break;
642 if (i == ARRAY_SIZE(hdpvr_dv_timings))
643 return -EINVAL;
644 dev->cur_dv_timings = hdpvr_dv_timings[i];
645 dev->width = hdpvr_dv_timings[i].bt.width;
646 dev->height = hdpvr_dv_timings[i].bt.height;
647 return 0;
648}
649
650static int vidioc_g_dv_timings(struct file *file, void *_fh,
651 struct v4l2_dv_timings *timings)
652{
653 struct hdpvr_device *dev = video_drvdata(file);
654 struct hdpvr_fh *fh = _fh;
655
656 fh->legacy_mode = false;
657 if (dev->options.video_input)
658 return -ENODATA;
659 *timings = dev->cur_dv_timings;
660 return 0;
661}
662
663static int vidioc_query_dv_timings(struct file *file, void *_fh,
664 struct v4l2_dv_timings *timings)
665{
666 struct hdpvr_device *dev = video_drvdata(file);
667 struct hdpvr_fh *fh = _fh;
668 struct hdpvr_video_info *vid_info;
669 bool interlaced;
670 int ret = 0;
671 int i;
672
673 fh->legacy_mode = false;
674 if (dev->options.video_input)
675 return -ENODATA;
676 vid_info = get_video_info(dev);
677 if (vid_info == NULL)
678 return -ENOLCK;
679 interlaced = vid_info->fps <= 30;
680 for (i = 0; i < ARRAY_SIZE(hdpvr_dv_timings); i++) {
681 const struct v4l2_bt_timings *bt = &hdpvr_dv_timings[i].bt;
682 unsigned hsize;
683 unsigned vsize;
684 unsigned fps;
685
686 hsize = bt->hfrontporch + bt->hsync + bt->hbackporch + bt->width;
687 vsize = bt->vfrontporch + bt->vsync + bt->vbackporch +
688 bt->il_vfrontporch + bt->il_vsync + bt->il_vbackporch +
689 bt->height;
690 fps = (unsigned)bt->pixelclock / (hsize * vsize);
691 if (bt->width != vid_info->width ||
692 bt->height != vid_info->height ||
693 bt->interlaced != interlaced ||
694 (fps != vid_info->fps && fps + 1 != vid_info->fps))
695 continue;
696 *timings = hdpvr_dv_timings[i];
697 break;
698 }
699 if (i == ARRAY_SIZE(hdpvr_dv_timings))
700 ret = -ERANGE;
701 kfree(vid_info);
702 return ret;
703}
704
705static int vidioc_enum_dv_timings(struct file *file, void *_fh,
706 struct v4l2_enum_dv_timings *timings)
707{
708 struct hdpvr_device *dev = video_drvdata(file);
709 struct hdpvr_fh *fh = _fh;
710
711 fh->legacy_mode = false;
712 memset(timings->reserved, 0, sizeof(timings->reserved));
713 if (dev->options.video_input)
714 return -ENODATA;
715 if (timings->index >= ARRAY_SIZE(hdpvr_dv_timings))
716 return -EINVAL;
717 timings->timings = hdpvr_dv_timings[timings->index];
718 return 0;
719}
720
721static int vidioc_dv_timings_cap(struct file *file, void *_fh,
722 struct v4l2_dv_timings_cap *cap)
723{
724 struct hdpvr_device *dev = video_drvdata(file);
725 struct hdpvr_fh *fh = _fh;
726
727 fh->legacy_mode = false;
728 if (dev->options.video_input)
729 return -ENODATA;
730 cap->type = V4L2_DV_BT_656_1120;
731 cap->bt.min_width = 720;
732 cap->bt.max_width = 1920;
733 cap->bt.min_height = 480;
734 cap->bt.max_height = 1080;
735 cap->bt.min_pixelclock = 27000000;
736 cap->bt.max_pixelclock = 74250000;
737 cap->bt.standards = V4L2_DV_BT_STD_CEA861;
738 cap->bt.capabilities = V4L2_DV_BT_CAP_INTERLACED | V4L2_DV_BT_CAP_PROGRESSIVE;
739 return 0;
740}
741
742static const char *iname[] = {
743 [HDPVR_COMPONENT] = "Component",
744 [HDPVR_SVIDEO] = "S-Video",
745 [HDPVR_COMPOSITE] = "Composite",
746};
747
748static int vidioc_enum_input(struct file *file, void *_fh, struct v4l2_input *i)
749{
750 unsigned int n;
751
752 n = i->index;
753 if (n >= HDPVR_VIDEO_INPUTS)
754 return -EINVAL;
755
756 i->type = V4L2_INPUT_TYPE_CAMERA;
757
758 strncpy(i->name, iname[n], sizeof(i->name) - 1);
759 i->name[sizeof(i->name) - 1] = '\0';
760
761 i->audioset = 1<<HDPVR_RCA_FRONT | 1<<HDPVR_RCA_BACK | 1<<HDPVR_SPDIF;
762
763 i->capabilities = n ? V4L2_IN_CAP_STD : V4L2_IN_CAP_DV_TIMINGS;
764 i->std = n ? V4L2_STD_ALL : 0;
765
766 return 0;
767}
768
769static int vidioc_s_input(struct file *file, void *_fh,
770 unsigned int index)
771{
772 struct hdpvr_device *dev = video_drvdata(file);
773 int retval;
774
775 if (index >= HDPVR_VIDEO_INPUTS)
776 return -EINVAL;
777
778 if (dev->status != STATUS_IDLE)
779 return -EBUSY;
780
781 retval = hdpvr_config_call(dev, CTRL_VIDEO_INPUT_VALUE, index+1);
782 if (!retval) {
783 dev->options.video_input = index;
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798 }
799
800 return retval;
801}
802
803static int vidioc_g_input(struct file *file, void *private_data,
804 unsigned int *index)
805{
806 struct hdpvr_device *dev = video_drvdata(file);
807
808 *index = dev->options.video_input;
809 return 0;
810}
811
812
813static const char *audio_iname[] = {
814 [HDPVR_RCA_FRONT] = "RCA front",
815 [HDPVR_RCA_BACK] = "RCA back",
816 [HDPVR_SPDIF] = "SPDIF",
817};
818
819static int vidioc_enumaudio(struct file *file, void *priv,
820 struct v4l2_audio *audio)
821{
822 unsigned int n;
823
824 n = audio->index;
825 if (n >= HDPVR_AUDIO_INPUTS)
826 return -EINVAL;
827
828 audio->capability = V4L2_AUDCAP_STEREO;
829
830 strncpy(audio->name, audio_iname[n], sizeof(audio->name) - 1);
831 audio->name[sizeof(audio->name) - 1] = '\0';
832
833 return 0;
834}
835
836static int vidioc_s_audio(struct file *file, void *private_data,
837 const struct v4l2_audio *audio)
838{
839 struct hdpvr_device *dev = video_drvdata(file);
840 int retval;
841
842 if (audio->index >= HDPVR_AUDIO_INPUTS)
843 return -EINVAL;
844
845 if (dev->status != STATUS_IDLE)
846 return -EBUSY;
847
848 retval = hdpvr_set_audio(dev, audio->index+1, dev->options.audio_codec);
849 if (!retval)
850 dev->options.audio_input = audio->index;
851
852 return retval;
853}
854
855static int vidioc_g_audio(struct file *file, void *private_data,
856 struct v4l2_audio *audio)
857{
858 struct hdpvr_device *dev = video_drvdata(file);
859
860 audio->index = dev->options.audio_input;
861 audio->capability = V4L2_AUDCAP_STEREO;
862 strncpy(audio->name, audio_iname[audio->index], sizeof(audio->name));
863 audio->name[sizeof(audio->name) - 1] = '\0';
864 return 0;
865}
866
867static int hdpvr_try_ctrl(struct v4l2_ctrl *ctrl)
868{
869 struct hdpvr_device *dev =
870 container_of(ctrl->handler, struct hdpvr_device, hdl);
871
872 switch (ctrl->id) {
873 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
874 if (ctrl->val == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR &&
875 dev->video_bitrate->val >= dev->video_bitrate_peak->val)
876 dev->video_bitrate_peak->val =
877 dev->video_bitrate->val + 100000;
878 break;
879 }
880 return 0;
881}
882
883static int hdpvr_s_ctrl(struct v4l2_ctrl *ctrl)
884{
885 struct hdpvr_device *dev =
886 container_of(ctrl->handler, struct hdpvr_device, hdl);
887 struct hdpvr_options *opt = &dev->options;
888 int ret = -EINVAL;
889
890 switch (ctrl->id) {
891 case V4L2_CID_BRIGHTNESS:
892 ret = hdpvr_config_call(dev, CTRL_BRIGHTNESS, ctrl->val);
893 if (ret)
894 break;
895 dev->options.brightness = ctrl->val;
896 return 0;
897 case V4L2_CID_CONTRAST:
898 ret = hdpvr_config_call(dev, CTRL_CONTRAST, ctrl->val);
899 if (ret)
900 break;
901 dev->options.contrast = ctrl->val;
902 return 0;
903 case V4L2_CID_SATURATION:
904 ret = hdpvr_config_call(dev, CTRL_SATURATION, ctrl->val);
905 if (ret)
906 break;
907 dev->options.saturation = ctrl->val;
908 return 0;
909 case V4L2_CID_HUE:
910 ret = hdpvr_config_call(dev, CTRL_HUE, ctrl->val);
911 if (ret)
912 break;
913 dev->options.hue = ctrl->val;
914 return 0;
915 case V4L2_CID_SHARPNESS:
916 ret = hdpvr_config_call(dev, CTRL_SHARPNESS, ctrl->val);
917 if (ret)
918 break;
919 dev->options.sharpness = ctrl->val;
920 return 0;
921 case V4L2_CID_MPEG_AUDIO_ENCODING:
922 if (dev->flags & HDPVR_FLAG_AC3_CAP) {
923 opt->audio_codec = ctrl->val;
924 return hdpvr_set_audio(dev, opt->audio_input,
925 opt->audio_codec);
926 }
927 return 0;
928 case V4L2_CID_MPEG_VIDEO_ENCODING:
929 return 0;
930
931
932
933
934
935
936
937
938
939
940
941
942 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: {
943 uint peak_bitrate = dev->video_bitrate_peak->val / 100000;
944 uint bitrate = dev->video_bitrate->val / 100000;
945
946 if (ctrl->is_new) {
947 if (ctrl->val == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR)
948 opt->bitrate_mode = HDPVR_CONSTANT;
949 else
950 opt->bitrate_mode = HDPVR_VARIABLE_AVERAGE;
951 hdpvr_config_call(dev, CTRL_BITRATE_MODE_VALUE,
952 opt->bitrate_mode);
953 v4l2_ctrl_activate(dev->video_bitrate_peak,
954 ctrl->val != V4L2_MPEG_VIDEO_BITRATE_MODE_CBR);
955 }
956
957 if (dev->video_bitrate_peak->is_new ||
958 dev->video_bitrate->is_new) {
959 opt->bitrate = bitrate;
960 opt->peak_bitrate = peak_bitrate;
961 hdpvr_set_bitrate(dev);
962 }
963 return 0;
964 }
965 case V4L2_CID_MPEG_STREAM_TYPE:
966 return 0;
967 default:
968 break;
969 }
970 return ret;
971}
972
973static int vidioc_enum_fmt_vid_cap(struct file *file, void *private_data,
974 struct v4l2_fmtdesc *f)
975{
976 if (f->index != 0)
977 return -EINVAL;
978
979 f->flags = V4L2_FMT_FLAG_COMPRESSED;
980 strncpy(f->description, "MPEG2-TS with AVC/AAC streams", 32);
981 f->pixelformat = V4L2_PIX_FMT_MPEG;
982
983 return 0;
984}
985
986static int vidioc_g_fmt_vid_cap(struct file *file, void *_fh,
987 struct v4l2_format *f)
988{
989 struct hdpvr_device *dev = video_drvdata(file);
990 struct hdpvr_fh *fh = _fh;
991
992
993
994
995
996
997
998
999
1000
1001
1002 if (fh->legacy_mode) {
1003 struct hdpvr_video_info *vid_info;
1004
1005 vid_info = get_video_info(dev);
1006 if (!vid_info)
1007 return -EFAULT;
1008 f->fmt.pix.width = vid_info->width;
1009 f->fmt.pix.height = vid_info->height;
1010 kfree(vid_info);
1011 } else {
1012 f->fmt.pix.width = dev->width;
1013 f->fmt.pix.height = dev->height;
1014 }
1015 f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
1016 f->fmt.pix.sizeimage = dev->bulk_in_size;
1017 f->fmt.pix.bytesperline = 0;
1018 f->fmt.pix.priv = 0;
1019 if (f->fmt.pix.width == 720) {
1020
1021 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1022 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1023 } else {
1024
1025 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE240M;
1026 f->fmt.pix.field = V4L2_FIELD_NONE;
1027 }
1028 return 0;
1029}
1030
1031static int vidioc_encoder_cmd(struct file *filp, void *priv,
1032 struct v4l2_encoder_cmd *a)
1033{
1034 struct hdpvr_device *dev = video_drvdata(filp);
1035 int res = 0;
1036
1037 mutex_lock(&dev->io_mutex);
1038 a->flags = 0;
1039
1040 switch (a->cmd) {
1041 case V4L2_ENC_CMD_START:
1042 if (dev->owner && filp->private_data != dev->owner) {
1043 res = -EBUSY;
1044 break;
1045 }
1046 if (dev->status == STATUS_STREAMING)
1047 break;
1048 res = hdpvr_start_streaming(dev);
1049 if (!res)
1050 dev->owner = filp->private_data;
1051 else
1052 dev->status = STATUS_IDLE;
1053 break;
1054 case V4L2_ENC_CMD_STOP:
1055 if (dev->owner && filp->private_data != dev->owner) {
1056 res = -EBUSY;
1057 break;
1058 }
1059 if (dev->status == STATUS_IDLE)
1060 break;
1061 res = hdpvr_stop_streaming(dev);
1062 if (!res)
1063 dev->owner = NULL;
1064 break;
1065 default:
1066 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
1067 "Unsupported encoder cmd %d\n", a->cmd);
1068 res = -EINVAL;
1069 break;
1070 }
1071
1072 mutex_unlock(&dev->io_mutex);
1073 return res;
1074}
1075
1076static int vidioc_try_encoder_cmd(struct file *filp, void *priv,
1077 struct v4l2_encoder_cmd *a)
1078{
1079 a->flags = 0;
1080 switch (a->cmd) {
1081 case V4L2_ENC_CMD_START:
1082 case V4L2_ENC_CMD_STOP:
1083 return 0;
1084 default:
1085 return -EINVAL;
1086 }
1087}
1088
1089static const struct v4l2_ioctl_ops hdpvr_ioctl_ops = {
1090 .vidioc_querycap = vidioc_querycap,
1091 .vidioc_s_std = vidioc_s_std,
1092 .vidioc_g_std = vidioc_g_std,
1093 .vidioc_querystd = vidioc_querystd,
1094 .vidioc_s_dv_timings = vidioc_s_dv_timings,
1095 .vidioc_g_dv_timings = vidioc_g_dv_timings,
1096 .vidioc_query_dv_timings= vidioc_query_dv_timings,
1097 .vidioc_enum_dv_timings = vidioc_enum_dv_timings,
1098 .vidioc_dv_timings_cap = vidioc_dv_timings_cap,
1099 .vidioc_enum_input = vidioc_enum_input,
1100 .vidioc_g_input = vidioc_g_input,
1101 .vidioc_s_input = vidioc_s_input,
1102 .vidioc_enumaudio = vidioc_enumaudio,
1103 .vidioc_g_audio = vidioc_g_audio,
1104 .vidioc_s_audio = vidioc_s_audio,
1105 .vidioc_enum_fmt_vid_cap= vidioc_enum_fmt_vid_cap,
1106 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1107 .vidioc_s_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1108 .vidioc_try_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1109 .vidioc_encoder_cmd = vidioc_encoder_cmd,
1110 .vidioc_try_encoder_cmd = vidioc_try_encoder_cmd,
1111 .vidioc_log_status = v4l2_ctrl_log_status,
1112 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1113 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1114};
1115
1116static void hdpvr_device_release(struct video_device *vdev)
1117{
1118 struct hdpvr_device *dev = video_get_drvdata(vdev);
1119
1120 hdpvr_delete(dev);
1121 mutex_lock(&dev->io_mutex);
1122 destroy_workqueue(dev->workqueue);
1123 mutex_unlock(&dev->io_mutex);
1124
1125 v4l2_device_unregister(&dev->v4l2_dev);
1126 v4l2_ctrl_handler_free(&dev->hdl);
1127
1128
1129#if IS_ENABLED(CONFIG_I2C)
1130 mutex_lock(&dev->i2c_mutex);
1131 i2c_del_adapter(&dev->i2c_adapter);
1132 mutex_unlock(&dev->i2c_mutex);
1133#endif
1134
1135 kfree(dev->usbc_buf);
1136 kfree(dev);
1137}
1138
1139static const struct video_device hdpvr_video_template = {
1140 .fops = &hdpvr_fops,
1141 .release = hdpvr_device_release,
1142 .ioctl_ops = &hdpvr_ioctl_ops,
1143 .tvnorms = V4L2_STD_ALL,
1144};
1145
1146static const struct v4l2_ctrl_ops hdpvr_ctrl_ops = {
1147 .try_ctrl = hdpvr_try_ctrl,
1148 .s_ctrl = hdpvr_s_ctrl,
1149};
1150
1151int hdpvr_register_videodev(struct hdpvr_device *dev, struct device *parent,
1152 int devnum)
1153{
1154 struct v4l2_ctrl_handler *hdl = &dev->hdl;
1155 bool ac3 = dev->flags & HDPVR_FLAG_AC3_CAP;
1156 int res;
1157
1158 dev->cur_std = V4L2_STD_525_60;
1159 dev->width = 720;
1160 dev->height = 480;
1161 dev->cur_dv_timings = hdpvr_dv_timings[HDPVR_DEF_DV_TIMINGS_IDX];
1162 v4l2_ctrl_handler_init(hdl, 11);
1163 if (dev->fw_ver > 0x15) {
1164 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1165 V4L2_CID_BRIGHTNESS, 0x0, 0xff, 1, 0x80);
1166 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1167 V4L2_CID_CONTRAST, 0x0, 0xff, 1, 0x40);
1168 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1169 V4L2_CID_SATURATION, 0x0, 0xff, 1, 0x40);
1170 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1171 V4L2_CID_HUE, 0x0, 0x1e, 1, 0xf);
1172 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1173 V4L2_CID_SHARPNESS, 0x0, 0xff, 1, 0x80);
1174 } else {
1175 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1176 V4L2_CID_BRIGHTNESS, 0x0, 0xff, 1, 0x86);
1177 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1178 V4L2_CID_CONTRAST, 0x0, 0xff, 1, 0x80);
1179 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1180 V4L2_CID_SATURATION, 0x0, 0xff, 1, 0x80);
1181 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1182 V4L2_CID_HUE, 0x0, 0xff, 1, 0x80);
1183 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1184 V4L2_CID_SHARPNESS, 0x0, 0xff, 1, 0x80);
1185 }
1186
1187 v4l2_ctrl_new_std_menu(hdl, &hdpvr_ctrl_ops,
1188 V4L2_CID_MPEG_STREAM_TYPE,
1189 V4L2_MPEG_STREAM_TYPE_MPEG2_TS,
1190 0x1, V4L2_MPEG_STREAM_TYPE_MPEG2_TS);
1191 v4l2_ctrl_new_std_menu(hdl, &hdpvr_ctrl_ops,
1192 V4L2_CID_MPEG_AUDIO_ENCODING,
1193 ac3 ? V4L2_MPEG_AUDIO_ENCODING_AC3 : V4L2_MPEG_AUDIO_ENCODING_AAC,
1194 0x7, V4L2_MPEG_AUDIO_ENCODING_AAC);
1195 v4l2_ctrl_new_std_menu(hdl, &hdpvr_ctrl_ops,
1196 V4L2_CID_MPEG_VIDEO_ENCODING,
1197 V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC, 0x3,
1198 V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC);
1199
1200 dev->video_mode = v4l2_ctrl_new_std_menu(hdl, &hdpvr_ctrl_ops,
1201 V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
1202 V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 0,
1203 V4L2_MPEG_VIDEO_BITRATE_MODE_CBR);
1204
1205 dev->video_bitrate = v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1206 V4L2_CID_MPEG_VIDEO_BITRATE,
1207 1000000, 13500000, 100000, 6500000);
1208 dev->video_bitrate_peak = v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1209 V4L2_CID_MPEG_VIDEO_BITRATE_PEAK,
1210 1100000, 20200000, 100000, 9000000);
1211 dev->v4l2_dev.ctrl_handler = hdl;
1212 if (hdl->error) {
1213 res = hdl->error;
1214 v4l2_err(&dev->v4l2_dev, "Could not register controls\n");
1215 goto error;
1216 }
1217 v4l2_ctrl_cluster(3, &dev->video_mode);
1218 res = v4l2_ctrl_handler_setup(hdl);
1219 if (res < 0) {
1220 v4l2_err(&dev->v4l2_dev, "Could not setup controls\n");
1221 goto error;
1222 }
1223
1224
1225 dev->video_dev = video_device_alloc();
1226 if (!dev->video_dev) {
1227 v4l2_err(&dev->v4l2_dev, "video_device_alloc() failed\n");
1228 res = -ENOMEM;
1229 goto error;
1230 }
1231
1232 *dev->video_dev = hdpvr_video_template;
1233 strcpy(dev->video_dev->name, "Hauppauge HD PVR");
1234 dev->video_dev->v4l2_dev = &dev->v4l2_dev;
1235 video_set_drvdata(dev->video_dev, dev);
1236 set_bit(V4L2_FL_USE_FH_PRIO, &dev->video_dev->flags);
1237
1238 res = video_register_device(dev->video_dev, VFL_TYPE_GRABBER, devnum);
1239 if (res < 0) {
1240 v4l2_err(&dev->v4l2_dev, "video_device registration failed\n");
1241 goto error;
1242 }
1243
1244 return 0;
1245error:
1246 v4l2_ctrl_handler_free(hdl);
1247 return res;
1248}
1249
