2 * Hauppauge HD PVR USB driver - video 4 linux 2 interface
4 * Copyright (C) 2008 Janne Grunau (j@jannau.net)
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.
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>
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-dv-timings.h>
28 #include <media/v4l2-ioctl.h>
29 #include <media/v4l2-event.h>
32 #define BULK_URB_TIMEOUT 90 /* 0.09 seconds */
34 #define print_buffer_status() { \
35 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev, \
36 "%s:%d buffer stat: %d free, %d proc\n", \
38 list_size(&dev->free_buff_list), \
39 list_size(&dev->rec_buff_list)); }
41 static const struct v4l2_dv_timings hdpvr_dv_timings[] = {
42 V4L2_DV_BT_CEA_720X480I59_94,
43 V4L2_DV_BT_CEA_720X576I50,
44 V4L2_DV_BT_CEA_720X480P59_94,
45 V4L2_DV_BT_CEA_720X576P50,
46 V4L2_DV_BT_CEA_1280X720P50,
47 V4L2_DV_BT_CEA_1280X720P60,
48 V4L2_DV_BT_CEA_1920X1080I50,
49 V4L2_DV_BT_CEA_1920X1080I60,
52 /* Use 480i59 as the default timings */
53 #define HDPVR_DEF_DV_TIMINGS_IDX (0)
60 static uint list_size(struct list_head *list)
62 struct list_head *tmp;
65 list_for_each(tmp, list) {
72 /*=========================================================================*/
74 static void hdpvr_read_bulk_callback(struct urb *urb)
76 struct hdpvr_buffer *buf = (struct hdpvr_buffer *)urb->context;
77 struct hdpvr_device *dev = buf->dev;
79 /* marking buffer as received and wake waiting */
80 buf->status = BUFSTAT_READY;
81 wake_up_interruptible(&dev->wait_data);
84 /*=========================================================================*/
87 /* function expects dev->io_mutex to be hold by caller */
88 int hdpvr_cancel_queue(struct hdpvr_device *dev)
90 struct hdpvr_buffer *buf;
92 list_for_each_entry(buf, &dev->rec_buff_list, buff_list) {
93 usb_kill_urb(buf->urb);
94 buf->status = BUFSTAT_AVAILABLE;
97 list_splice_init(&dev->rec_buff_list, dev->free_buff_list.prev);
102 static int hdpvr_free_queue(struct list_head *q)
104 struct list_head *tmp;
106 struct hdpvr_buffer *buf;
109 for (p = q->next; p != q;) {
110 buf = list_entry(p, struct hdpvr_buffer, buff_list);
113 usb_free_coherent(urb->dev, urb->transfer_buffer_length,
114 urb->transfer_buffer, urb->transfer_dma);
125 /* function expects dev->io_mutex to be hold by caller */
126 int hdpvr_free_buffers(struct hdpvr_device *dev)
128 hdpvr_cancel_queue(dev);
130 hdpvr_free_queue(&dev->free_buff_list);
131 hdpvr_free_queue(&dev->rec_buff_list);
136 /* function expects dev->io_mutex to be hold by caller */
137 int hdpvr_alloc_buffers(struct hdpvr_device *dev, uint count)
140 int retval = -ENOMEM;
142 struct hdpvr_buffer *buf;
145 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
146 "allocating %u buffers\n", count);
148 for (i = 0; i < count; i++) {
150 buf = kzalloc(sizeof(struct hdpvr_buffer), GFP_KERNEL);
152 v4l2_err(&dev->v4l2_dev, "cannot allocate buffer\n");
157 urb = usb_alloc_urb(0, GFP_KERNEL);
159 v4l2_err(&dev->v4l2_dev, "cannot allocate urb\n");
164 mem = usb_alloc_coherent(dev->udev, dev->bulk_in_size, GFP_KERNEL,
167 v4l2_err(&dev->v4l2_dev,
168 "cannot allocate usb transfer buffer\n");
169 goto exit_urb_buffer;
172 usb_fill_bulk_urb(buf->urb, dev->udev,
173 usb_rcvbulkpipe(dev->udev,
174 dev->bulk_in_endpointAddr),
175 mem, dev->bulk_in_size,
176 hdpvr_read_bulk_callback, buf);
178 buf->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
179 buf->status = BUFSTAT_AVAILABLE;
180 list_add_tail(&buf->buff_list, &dev->free_buff_list);
188 hdpvr_free_buffers(dev);
192 static int hdpvr_submit_buffers(struct hdpvr_device *dev)
194 struct hdpvr_buffer *buf;
196 int ret = 0, err_count = 0;
198 mutex_lock(&dev->io_mutex);
200 while (dev->status == STATUS_STREAMING &&
201 !list_empty(&dev->free_buff_list)) {
203 buf = list_entry(dev->free_buff_list.next, struct hdpvr_buffer,
205 if (buf->status != BUFSTAT_AVAILABLE) {
206 v4l2_err(&dev->v4l2_dev,
207 "buffer not marked as available\n");
214 urb->actual_length = 0;
215 ret = usb_submit_urb(urb, GFP_KERNEL);
217 v4l2_err(&dev->v4l2_dev,
218 "usb_submit_urb in %s returned %d\n",
224 buf->status = BUFSTAT_INPROGRESS;
225 list_move_tail(&buf->buff_list, &dev->rec_buff_list);
228 print_buffer_status();
229 mutex_unlock(&dev->io_mutex);
233 static struct hdpvr_buffer *hdpvr_get_next_buffer(struct hdpvr_device *dev)
235 struct hdpvr_buffer *buf;
237 mutex_lock(&dev->io_mutex);
239 if (list_empty(&dev->rec_buff_list)) {
240 mutex_unlock(&dev->io_mutex);
244 buf = list_entry(dev->rec_buff_list.next, struct hdpvr_buffer,
246 mutex_unlock(&dev->io_mutex);
251 static void hdpvr_transmit_buffers(struct work_struct *work)
253 struct hdpvr_device *dev = container_of(work, struct hdpvr_device,
256 while (dev->status == STATUS_STREAMING) {
258 if (hdpvr_submit_buffers(dev)) {
259 v4l2_err(&dev->v4l2_dev, "couldn't submit buffers\n");
262 if (wait_event_interruptible(dev->wait_buffer,
263 !list_empty(&dev->free_buff_list) ||
264 dev->status != STATUS_STREAMING))
268 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
269 "transmit worker exited\n");
272 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
273 "transmit buffers errored\n");
274 dev->status = STATUS_ERROR;
277 /* function expects dev->io_mutex to be hold by caller */
278 static int hdpvr_start_streaming(struct hdpvr_device *dev)
281 struct hdpvr_video_info vidinf;
283 if (dev->status == STATUS_STREAMING)
285 if (dev->status != STATUS_IDLE)
288 ret = get_video_info(dev, &vidinf);
294 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
295 "no video signal at input %d\n", dev->options.video_input);
299 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
300 "video signal: %dx%d@%dhz\n", vidinf.width,
301 vidinf.height, vidinf.fps);
303 /* start streaming 2 request */
304 ret = usb_control_msg(dev->udev,
305 usb_sndctrlpipe(dev->udev, 0),
306 0xb8, 0x38, 0x1, 0, NULL, 0, 8000);
307 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
308 "encoder start control request returned %d\n", ret);
312 ret = hdpvr_config_call(dev, CTRL_START_STREAMING_VALUE, 0x00);
316 dev->status = STATUS_STREAMING;
318 INIT_WORK(&dev->worker, hdpvr_transmit_buffers);
319 queue_work(dev->workqueue, &dev->worker);
321 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
322 "streaming started\n");
328 /* function expects dev->io_mutex to be hold by caller */
329 static int hdpvr_stop_streaming(struct hdpvr_device *dev)
335 if (dev->status == STATUS_IDLE)
337 else if (dev->status != STATUS_STREAMING)
340 buf = kmalloc(dev->bulk_in_size, GFP_KERNEL);
342 v4l2_err(&dev->v4l2_dev, "failed to allocate temporary buffer "
343 "for emptying the internal device buffer. "
344 "Next capture start will be slow\n");
346 dev->status = STATUS_SHUTTING_DOWN;
347 hdpvr_config_call(dev, CTRL_STOP_STREAMING_VALUE, 0x00);
348 mutex_unlock(&dev->io_mutex);
350 wake_up_interruptible(&dev->wait_buffer);
353 flush_workqueue(dev->workqueue);
355 mutex_lock(&dev->io_mutex);
356 /* kill the still outstanding urbs */
357 hdpvr_cancel_queue(dev);
359 /* emptying the device buffer beforeshutting it down */
360 while (buf && ++c < 500 &&
361 !usb_bulk_msg(dev->udev,
362 usb_rcvbulkpipe(dev->udev,
363 dev->bulk_in_endpointAddr),
364 buf, dev->bulk_in_size, &actual_length,
366 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
367 "%2d: got %d bytes\n", c, actual_length);
370 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
371 "used %d urbs to empty device buffers\n", c-1);
374 dev->status = STATUS_IDLE;
380 /*=======================================================================*/
382 * video 4 linux 2 file operations
385 static int hdpvr_open(struct file *file)
387 struct hdpvr_fh *fh = kzalloc(sizeof(*fh), GFP_KERNEL);
391 fh->legacy_mode = true;
392 v4l2_fh_init(&fh->fh, video_devdata(file));
393 v4l2_fh_add(&fh->fh);
394 file->private_data = fh;
398 static int hdpvr_release(struct file *file)
400 struct hdpvr_device *dev = video_drvdata(file);
402 mutex_lock(&dev->io_mutex);
403 if (file->private_data == dev->owner) {
404 hdpvr_stop_streaming(dev);
407 mutex_unlock(&dev->io_mutex);
409 return v4l2_fh_release(file);
414 * will allocate buffers when called for the first time
416 static ssize_t hdpvr_read(struct file *file, char __user *buffer, size_t count,
419 struct hdpvr_device *dev = video_drvdata(file);
420 struct hdpvr_buffer *buf = NULL;
422 unsigned int ret = 0;
428 mutex_lock(&dev->io_mutex);
429 if (dev->status == STATUS_IDLE) {
430 if (hdpvr_start_streaming(dev)) {
431 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
432 "start_streaming failed\n");
435 dev->status = STATUS_IDLE;
436 mutex_unlock(&dev->io_mutex);
439 dev->owner = file->private_data;
440 print_buffer_status();
442 mutex_unlock(&dev->io_mutex);
444 /* wait for the first buffer */
445 if (!(file->f_flags & O_NONBLOCK)) {
446 if (wait_event_interruptible(dev->wait_data,
447 hdpvr_get_next_buffer(dev)))
451 buf = hdpvr_get_next_buffer(dev);
453 while (count > 0 && buf) {
455 if (buf->status != BUFSTAT_READY &&
456 dev->status != STATUS_DISCONNECTED) {
457 /* return nonblocking */
458 if (file->f_flags & O_NONBLOCK) {
464 if (wait_event_interruptible(dev->wait_data,
465 buf->status == BUFSTAT_READY)) {
471 if (buf->status != BUFSTAT_READY)
474 /* set remaining bytes to copy */
476 rem = urb->actual_length - buf->pos;
477 cnt = rem > count ? count : rem;
479 if (copy_to_user(buffer, urb->transfer_buffer + buf->pos,
481 v4l2_err(&dev->v4l2_dev, "read: copy_to_user failed\n");
492 /* finished, take next buffer */
493 if (buf->pos == urb->actual_length) {
494 mutex_lock(&dev->io_mutex);
496 buf->status = BUFSTAT_AVAILABLE;
498 list_move_tail(&buf->buff_list, &dev->free_buff_list);
500 print_buffer_status();
502 mutex_unlock(&dev->io_mutex);
504 wake_up_interruptible(&dev->wait_buffer);
506 buf = hdpvr_get_next_buffer(dev);
515 static unsigned int hdpvr_poll(struct file *filp, poll_table *wait)
517 unsigned long req_events = poll_requested_events(wait);
518 struct hdpvr_buffer *buf = NULL;
519 struct hdpvr_device *dev = video_drvdata(filp);
520 unsigned int mask = v4l2_ctrl_poll(filp, wait);
522 if (!(req_events & (POLLIN | POLLRDNORM)))
525 mutex_lock(&dev->io_mutex);
527 if (dev->status == STATUS_IDLE) {
528 if (hdpvr_start_streaming(dev)) {
529 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
530 "start_streaming failed\n");
531 dev->status = STATUS_IDLE;
533 dev->owner = filp->private_data;
536 print_buffer_status();
538 mutex_unlock(&dev->io_mutex);
540 buf = hdpvr_get_next_buffer(dev);
541 /* only wait if no data is available */
542 if (!buf || buf->status != BUFSTAT_READY) {
543 poll_wait(filp, &dev->wait_data, wait);
544 buf = hdpvr_get_next_buffer(dev);
546 if (buf && buf->status == BUFSTAT_READY)
547 mask |= POLLIN | POLLRDNORM;
553 static const struct v4l2_file_operations hdpvr_fops = {
554 .owner = THIS_MODULE,
556 .release = hdpvr_release,
559 .unlocked_ioctl = video_ioctl2,
562 /*=======================================================================*/
564 * V4L2 ioctl handling
567 static int vidioc_querycap(struct file *file, void *priv,
568 struct v4l2_capability *cap)
570 struct hdpvr_device *dev = video_drvdata(file);
572 strcpy(cap->driver, "hdpvr");
573 strcpy(cap->card, "Hauppauge HD PVR");
574 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
575 cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_AUDIO |
577 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
581 static int vidioc_s_std(struct file *file, void *_fh,
584 struct hdpvr_device *dev = video_drvdata(file);
585 struct hdpvr_fh *fh = _fh;
588 if (!fh->legacy_mode && dev->options.video_input == HDPVR_COMPONENT)
590 if (dev->status != STATUS_IDLE)
592 if (std & V4L2_STD_525_60)
596 dev->height = std_type ? 576 : 480;
598 return hdpvr_config_call(dev, CTRL_VIDEO_STD_TYPE, std_type);
601 static int vidioc_g_std(struct file *file, void *_fh,
604 struct hdpvr_device *dev = video_drvdata(file);
605 struct hdpvr_fh *fh = _fh;
607 if (!fh->legacy_mode && dev->options.video_input == HDPVR_COMPONENT)
613 static int vidioc_querystd(struct file *file, void *_fh, v4l2_std_id *a)
615 struct hdpvr_device *dev = video_drvdata(file);
616 struct hdpvr_video_info vid_info;
617 struct hdpvr_fh *fh = _fh;
620 *a = V4L2_STD_UNKNOWN;
621 if (dev->options.video_input == HDPVR_COMPONENT)
622 return fh->legacy_mode ? 0 : -ENODATA;
623 ret = get_video_info(dev, &vid_info);
624 if (vid_info.valid && vid_info.width == 720 &&
625 (vid_info.height == 480 || vid_info.height == 576)) {
626 *a = (vid_info.height == 480) ?
627 V4L2_STD_525_60 : V4L2_STD_625_50;
632 static int vidioc_s_dv_timings(struct file *file, void *_fh,
633 struct v4l2_dv_timings *timings)
635 struct hdpvr_device *dev = video_drvdata(file);
636 struct hdpvr_fh *fh = _fh;
639 fh->legacy_mode = false;
640 if (dev->options.video_input)
642 if (dev->status != STATUS_IDLE)
644 for (i = 0; i < ARRAY_SIZE(hdpvr_dv_timings); i++)
645 if (v4l2_match_dv_timings(timings, hdpvr_dv_timings + i, 0))
647 if (i == ARRAY_SIZE(hdpvr_dv_timings))
649 dev->cur_dv_timings = hdpvr_dv_timings[i];
650 dev->width = hdpvr_dv_timings[i].bt.width;
651 dev->height = hdpvr_dv_timings[i].bt.height;
655 static int vidioc_g_dv_timings(struct file *file, void *_fh,
656 struct v4l2_dv_timings *timings)
658 struct hdpvr_device *dev = video_drvdata(file);
659 struct hdpvr_fh *fh = _fh;
661 fh->legacy_mode = false;
662 if (dev->options.video_input)
664 *timings = dev->cur_dv_timings;
668 static int vidioc_query_dv_timings(struct file *file, void *_fh,
669 struct v4l2_dv_timings *timings)
671 struct hdpvr_device *dev = video_drvdata(file);
672 struct hdpvr_fh *fh = _fh;
673 struct hdpvr_video_info vid_info;
678 fh->legacy_mode = false;
679 if (dev->options.video_input)
681 ret = get_video_info(dev, &vid_info);
686 interlaced = vid_info.fps <= 30;
687 for (i = 0; i < ARRAY_SIZE(hdpvr_dv_timings); i++) {
688 const struct v4l2_bt_timings *bt = &hdpvr_dv_timings[i].bt;
693 hsize = V4L2_DV_BT_FRAME_WIDTH(bt);
694 vsize = V4L2_DV_BT_FRAME_HEIGHT(bt);
695 fps = (unsigned)bt->pixelclock / (hsize * vsize);
696 if (bt->width != vid_info.width ||
697 bt->height != vid_info.height ||
698 bt->interlaced != interlaced ||
699 (fps != vid_info.fps && fps + 1 != vid_info.fps))
701 *timings = hdpvr_dv_timings[i];
704 if (i == ARRAY_SIZE(hdpvr_dv_timings))
710 static int vidioc_enum_dv_timings(struct file *file, void *_fh,
711 struct v4l2_enum_dv_timings *timings)
713 struct hdpvr_device *dev = video_drvdata(file);
714 struct hdpvr_fh *fh = _fh;
716 fh->legacy_mode = false;
717 memset(timings->reserved, 0, sizeof(timings->reserved));
718 if (dev->options.video_input)
720 if (timings->index >= ARRAY_SIZE(hdpvr_dv_timings))
722 timings->timings = hdpvr_dv_timings[timings->index];
726 static int vidioc_dv_timings_cap(struct file *file, void *_fh,
727 struct v4l2_dv_timings_cap *cap)
729 struct hdpvr_device *dev = video_drvdata(file);
730 struct hdpvr_fh *fh = _fh;
732 fh->legacy_mode = false;
733 if (dev->options.video_input)
735 cap->type = V4L2_DV_BT_656_1120;
736 cap->bt.min_width = 720;
737 cap->bt.max_width = 1920;
738 cap->bt.min_height = 480;
739 cap->bt.max_height = 1080;
740 cap->bt.min_pixelclock = 27000000;
741 cap->bt.max_pixelclock = 74250000;
742 cap->bt.standards = V4L2_DV_BT_STD_CEA861;
743 cap->bt.capabilities = V4L2_DV_BT_CAP_INTERLACED | V4L2_DV_BT_CAP_PROGRESSIVE;
747 static const char *iname[] = {
748 [HDPVR_COMPONENT] = "Component",
749 [HDPVR_SVIDEO] = "S-Video",
750 [HDPVR_COMPOSITE] = "Composite",
753 static int vidioc_enum_input(struct file *file, void *_fh, struct v4l2_input *i)
758 if (n >= HDPVR_VIDEO_INPUTS)
761 i->type = V4L2_INPUT_TYPE_CAMERA;
763 strncpy(i->name, iname[n], sizeof(i->name) - 1);
764 i->name[sizeof(i->name) - 1] = '\0';
766 i->audioset = 1<<HDPVR_RCA_FRONT | 1<<HDPVR_RCA_BACK | 1<<HDPVR_SPDIF;
768 i->capabilities = n ? V4L2_IN_CAP_STD : V4L2_IN_CAP_DV_TIMINGS;
769 i->std = n ? V4L2_STD_ALL : 0;
774 static int vidioc_s_input(struct file *file, void *_fh,
777 struct hdpvr_device *dev = video_drvdata(file);
780 if (index >= HDPVR_VIDEO_INPUTS)
783 if (dev->status != STATUS_IDLE)
786 retval = hdpvr_config_call(dev, CTRL_VIDEO_INPUT_VALUE, index+1);
788 dev->options.video_input = index;
790 * Unfortunately gstreamer calls ENUMSTD and bails out if it
791 * won't find any formats, even though component input is
792 * selected. This means that we have to leave tvnorms at
793 * V4L2_STD_ALL. We cannot use the 'legacy' trick since
794 * tvnorms is set at the device node level and not at the
797 * Comment this out for now, but if the legacy mode can be
798 * removed in the future, then this code should be enabled
800 dev->video_dev.tvnorms =
801 (index != HDPVR_COMPONENT) ? V4L2_STD_ALL : 0;
808 static int vidioc_g_input(struct file *file, void *private_data,
811 struct hdpvr_device *dev = video_drvdata(file);
813 *index = dev->options.video_input;
818 static const char *audio_iname[] = {
819 [HDPVR_RCA_FRONT] = "RCA front",
820 [HDPVR_RCA_BACK] = "RCA back",
821 [HDPVR_SPDIF] = "SPDIF",
824 static int vidioc_enumaudio(struct file *file, void *priv,
825 struct v4l2_audio *audio)
830 if (n >= HDPVR_AUDIO_INPUTS)
833 audio->capability = V4L2_AUDCAP_STEREO;
835 strncpy(audio->name, audio_iname[n], sizeof(audio->name) - 1);
836 audio->name[sizeof(audio->name) - 1] = '\0';
841 static int vidioc_s_audio(struct file *file, void *private_data,
842 const struct v4l2_audio *audio)
844 struct hdpvr_device *dev = video_drvdata(file);
847 if (audio->index >= HDPVR_AUDIO_INPUTS)
850 if (dev->status != STATUS_IDLE)
853 retval = hdpvr_set_audio(dev, audio->index+1, dev->options.audio_codec);
855 dev->options.audio_input = audio->index;
860 static int vidioc_g_audio(struct file *file, void *private_data,
861 struct v4l2_audio *audio)
863 struct hdpvr_device *dev = video_drvdata(file);
865 audio->index = dev->options.audio_input;
866 audio->capability = V4L2_AUDCAP_STEREO;
867 strncpy(audio->name, audio_iname[audio->index], sizeof(audio->name));
868 audio->name[sizeof(audio->name) - 1] = '\0';
872 static int hdpvr_try_ctrl(struct v4l2_ctrl *ctrl)
874 struct hdpvr_device *dev =
875 container_of(ctrl->handler, struct hdpvr_device, hdl);
878 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
879 if (ctrl->val == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR &&
880 dev->video_bitrate->val >= dev->video_bitrate_peak->val)
881 dev->video_bitrate_peak->val =
882 dev->video_bitrate->val + 100000;
888 static int hdpvr_s_ctrl(struct v4l2_ctrl *ctrl)
890 struct hdpvr_device *dev =
891 container_of(ctrl->handler, struct hdpvr_device, hdl);
892 struct hdpvr_options *opt = &dev->options;
896 case V4L2_CID_BRIGHTNESS:
897 ret = hdpvr_config_call(dev, CTRL_BRIGHTNESS, ctrl->val);
900 dev->options.brightness = ctrl->val;
902 case V4L2_CID_CONTRAST:
903 ret = hdpvr_config_call(dev, CTRL_CONTRAST, ctrl->val);
906 dev->options.contrast = ctrl->val;
908 case V4L2_CID_SATURATION:
909 ret = hdpvr_config_call(dev, CTRL_SATURATION, ctrl->val);
912 dev->options.saturation = ctrl->val;
915 ret = hdpvr_config_call(dev, CTRL_HUE, ctrl->val);
918 dev->options.hue = ctrl->val;
920 case V4L2_CID_SHARPNESS:
921 ret = hdpvr_config_call(dev, CTRL_SHARPNESS, ctrl->val);
924 dev->options.sharpness = ctrl->val;
926 case V4L2_CID_MPEG_AUDIO_ENCODING:
927 if (dev->flags & HDPVR_FLAG_AC3_CAP) {
928 opt->audio_codec = ctrl->val;
929 return hdpvr_set_audio(dev, opt->audio_input + 1,
933 case V4L2_CID_MPEG_VIDEO_ENCODING:
935 /* case V4L2_CID_MPEG_VIDEO_B_FRAMES: */
936 /* if (ctrl->value == 0 && !(opt->gop_mode & 0x2)) { */
937 /* opt->gop_mode |= 0x2; */
938 /* hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, */
939 /* opt->gop_mode); */
941 /* if (ctrl->value == 128 && opt->gop_mode & 0x2) { */
942 /* opt->gop_mode &= ~0x2; */
943 /* hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, */
944 /* opt->gop_mode); */
947 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: {
948 uint peak_bitrate = dev->video_bitrate_peak->val / 100000;
949 uint bitrate = dev->video_bitrate->val / 100000;
952 if (ctrl->val == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR)
953 opt->bitrate_mode = HDPVR_CONSTANT;
955 opt->bitrate_mode = HDPVR_VARIABLE_AVERAGE;
956 hdpvr_config_call(dev, CTRL_BITRATE_MODE_VALUE,
958 v4l2_ctrl_activate(dev->video_bitrate_peak,
959 ctrl->val != V4L2_MPEG_VIDEO_BITRATE_MODE_CBR);
962 if (dev->video_bitrate_peak->is_new ||
963 dev->video_bitrate->is_new) {
964 opt->bitrate = bitrate;
965 opt->peak_bitrate = peak_bitrate;
966 hdpvr_set_bitrate(dev);
970 case V4L2_CID_MPEG_STREAM_TYPE:
978 static int vidioc_enum_fmt_vid_cap(struct file *file, void *private_data,
979 struct v4l2_fmtdesc *f)
984 f->flags = V4L2_FMT_FLAG_COMPRESSED;
985 strncpy(f->description, "MPEG2-TS with AVC/AAC streams", 32);
986 f->pixelformat = V4L2_PIX_FMT_MPEG;
991 static int vidioc_g_fmt_vid_cap(struct file *file, void *_fh,
992 struct v4l2_format *f)
994 struct hdpvr_device *dev = video_drvdata(file);
995 struct hdpvr_fh *fh = _fh;
999 * The original driver would always returns the current detected
1000 * resolution as the format (and EFAULT if it couldn't be detected).
1001 * With the introduction of VIDIOC_QUERY_DV_TIMINGS there is now a
1002 * better way of doing this, but to stay compatible with existing
1003 * applications we assume legacy mode every time an application opens
1004 * the device. Only if one of the new DV_TIMINGS ioctls is called
1005 * will the filehandle go into 'normal' mode where g_fmt returns the
1008 if (fh->legacy_mode) {
1009 struct hdpvr_video_info vid_info;
1011 ret = get_video_info(dev, &vid_info);
1014 if (!vid_info.valid)
1016 f->fmt.pix.width = vid_info.width;
1017 f->fmt.pix.height = vid_info.height;
1019 f->fmt.pix.width = dev->width;
1020 f->fmt.pix.height = dev->height;
1022 f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
1023 f->fmt.pix.sizeimage = dev->bulk_in_size;
1024 f->fmt.pix.bytesperline = 0;
1025 if (f->fmt.pix.width == 720) {
1027 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1028 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1031 f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
1032 f->fmt.pix.field = V4L2_FIELD_NONE;
1037 static int vidioc_encoder_cmd(struct file *filp, void *priv,
1038 struct v4l2_encoder_cmd *a)
1040 struct hdpvr_device *dev = video_drvdata(filp);
1043 mutex_lock(&dev->io_mutex);
1047 case V4L2_ENC_CMD_START:
1048 if (dev->owner && filp->private_data != dev->owner) {
1052 if (dev->status == STATUS_STREAMING)
1054 res = hdpvr_start_streaming(dev);
1056 dev->owner = filp->private_data;
1058 dev->status = STATUS_IDLE;
1060 case V4L2_ENC_CMD_STOP:
1061 if (dev->owner && filp->private_data != dev->owner) {
1065 if (dev->status == STATUS_IDLE)
1067 res = hdpvr_stop_streaming(dev);
1072 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
1073 "Unsupported encoder cmd %d\n", a->cmd);
1078 mutex_unlock(&dev->io_mutex);
1082 static int vidioc_try_encoder_cmd(struct file *filp, void *priv,
1083 struct v4l2_encoder_cmd *a)
1087 case V4L2_ENC_CMD_START:
1088 case V4L2_ENC_CMD_STOP:
1095 static const struct v4l2_ioctl_ops hdpvr_ioctl_ops = {
1096 .vidioc_querycap = vidioc_querycap,
1097 .vidioc_s_std = vidioc_s_std,
1098 .vidioc_g_std = vidioc_g_std,
1099 .vidioc_querystd = vidioc_querystd,
1100 .vidioc_s_dv_timings = vidioc_s_dv_timings,
1101 .vidioc_g_dv_timings = vidioc_g_dv_timings,
1102 .vidioc_query_dv_timings= vidioc_query_dv_timings,
1103 .vidioc_enum_dv_timings = vidioc_enum_dv_timings,
1104 .vidioc_dv_timings_cap = vidioc_dv_timings_cap,
1105 .vidioc_enum_input = vidioc_enum_input,
1106 .vidioc_g_input = vidioc_g_input,
1107 .vidioc_s_input = vidioc_s_input,
1108 .vidioc_enumaudio = vidioc_enumaudio,
1109 .vidioc_g_audio = vidioc_g_audio,
1110 .vidioc_s_audio = vidioc_s_audio,
1111 .vidioc_enum_fmt_vid_cap= vidioc_enum_fmt_vid_cap,
1112 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1113 .vidioc_s_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1114 .vidioc_try_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1115 .vidioc_encoder_cmd = vidioc_encoder_cmd,
1116 .vidioc_try_encoder_cmd = vidioc_try_encoder_cmd,
1117 .vidioc_log_status = v4l2_ctrl_log_status,
1118 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1119 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1122 static void hdpvr_device_release(struct video_device *vdev)
1124 struct hdpvr_device *dev = video_get_drvdata(vdev);
1127 mutex_lock(&dev->io_mutex);
1128 destroy_workqueue(dev->workqueue);
1129 mutex_unlock(&dev->io_mutex);
1131 v4l2_device_unregister(&dev->v4l2_dev);
1132 v4l2_ctrl_handler_free(&dev->hdl);
1134 /* deregister I2C adapter */
1135 #if IS_ENABLED(CONFIG_I2C)
1136 mutex_lock(&dev->i2c_mutex);
1137 i2c_del_adapter(&dev->i2c_adapter);
1138 mutex_unlock(&dev->i2c_mutex);
1139 #endif /* CONFIG_I2C */
1141 kfree(dev->usbc_buf);
1145 static const struct video_device hdpvr_video_template = {
1146 .fops = &hdpvr_fops,
1147 .release = hdpvr_device_release,
1148 .ioctl_ops = &hdpvr_ioctl_ops,
1149 .tvnorms = V4L2_STD_ALL,
1152 static const struct v4l2_ctrl_ops hdpvr_ctrl_ops = {
1153 .try_ctrl = hdpvr_try_ctrl,
1154 .s_ctrl = hdpvr_s_ctrl,
1157 int hdpvr_register_videodev(struct hdpvr_device *dev, struct device *parent,
1160 struct v4l2_ctrl_handler *hdl = &dev->hdl;
1161 bool ac3 = dev->flags & HDPVR_FLAG_AC3_CAP;
1164 dev->cur_std = V4L2_STD_525_60;
1167 dev->cur_dv_timings = hdpvr_dv_timings[HDPVR_DEF_DV_TIMINGS_IDX];
1168 v4l2_ctrl_handler_init(hdl, 11);
1169 if (dev->fw_ver > 0x15) {
1170 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1171 V4L2_CID_BRIGHTNESS, 0x0, 0xff, 1, 0x80);
1172 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1173 V4L2_CID_CONTRAST, 0x0, 0xff, 1, 0x40);
1174 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1175 V4L2_CID_SATURATION, 0x0, 0xff, 1, 0x40);
1176 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1177 V4L2_CID_HUE, 0x0, 0x1e, 1, 0xf);
1178 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1179 V4L2_CID_SHARPNESS, 0x0, 0xff, 1, 0x80);
1181 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1182 V4L2_CID_BRIGHTNESS, 0x0, 0xff, 1, 0x86);
1183 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1184 V4L2_CID_CONTRAST, 0x0, 0xff, 1, 0x80);
1185 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1186 V4L2_CID_SATURATION, 0x0, 0xff, 1, 0x80);
1187 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1188 V4L2_CID_HUE, 0x0, 0xff, 1, 0x80);
1189 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1190 V4L2_CID_SHARPNESS, 0x0, 0xff, 1, 0x80);
1193 v4l2_ctrl_new_std_menu(hdl, &hdpvr_ctrl_ops,
1194 V4L2_CID_MPEG_STREAM_TYPE,
1195 V4L2_MPEG_STREAM_TYPE_MPEG2_TS,
1196 0x1, V4L2_MPEG_STREAM_TYPE_MPEG2_TS);
1197 v4l2_ctrl_new_std_menu(hdl, &hdpvr_ctrl_ops,
1198 V4L2_CID_MPEG_AUDIO_ENCODING,
1199 ac3 ? V4L2_MPEG_AUDIO_ENCODING_AC3 : V4L2_MPEG_AUDIO_ENCODING_AAC,
1200 0x7, ac3 ? dev->options.audio_codec : V4L2_MPEG_AUDIO_ENCODING_AAC);
1201 v4l2_ctrl_new_std_menu(hdl, &hdpvr_ctrl_ops,
1202 V4L2_CID_MPEG_VIDEO_ENCODING,
1203 V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC, 0x3,
1204 V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC);
1206 dev->video_mode = v4l2_ctrl_new_std_menu(hdl, &hdpvr_ctrl_ops,
1207 V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
1208 V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 0,
1209 V4L2_MPEG_VIDEO_BITRATE_MODE_CBR);
1211 dev->video_bitrate = v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1212 V4L2_CID_MPEG_VIDEO_BITRATE,
1213 1000000, 13500000, 100000, 6500000);
1214 dev->video_bitrate_peak = v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1215 V4L2_CID_MPEG_VIDEO_BITRATE_PEAK,
1216 1100000, 20200000, 100000, 9000000);
1217 dev->v4l2_dev.ctrl_handler = hdl;
1220 v4l2_err(&dev->v4l2_dev, "Could not register controls\n");
1223 v4l2_ctrl_cluster(3, &dev->video_mode);
1224 res = v4l2_ctrl_handler_setup(hdl);
1226 v4l2_err(&dev->v4l2_dev, "Could not setup controls\n");
1230 /* setup and register video device */
1231 dev->video_dev = hdpvr_video_template;
1232 strcpy(dev->video_dev.name, "Hauppauge HD PVR");
1233 dev->video_dev.v4l2_dev = &dev->v4l2_dev;
1234 video_set_drvdata(&dev->video_dev, dev);
1236 res = video_register_device(&dev->video_dev, VFL_TYPE_GRABBER, devnum);
1238 v4l2_err(&dev->v4l2_dev, "video_device registration failed\n");
1244 v4l2_ctrl_handler_free(hdl);