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/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/workqueue.h>
22 #include <linux/videodev2.h>
23 #include <linux/v4l2-dv-timings.h>
24 #include <media/v4l2-dev.h>
25 #include <media/v4l2-common.h>
26 #include <media/v4l2-dv-timings.h>
27 #include <media/v4l2-ioctl.h>
28 #include <media/v4l2-event.h>
31 #define BULK_URB_TIMEOUT 90 /* 0.09 seconds */
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", \
37 list_size(&dev->free_buff_list), \
38 list_size(&dev->rec_buff_list)); }
40 static 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,
51 /* Use 480i59 as the default timings */
52 #define HDPVR_DEF_DV_TIMINGS_IDX (0)
59 static uint list_size(struct list_head *list)
61 struct list_head *tmp;
64 list_for_each(tmp, list) {
71 /*=========================================================================*/
73 static void hdpvr_read_bulk_callback(struct urb *urb)
75 struct hdpvr_buffer *buf = (struct hdpvr_buffer *)urb->context;
76 struct hdpvr_device *dev = buf->dev;
78 /* marking buffer as received and wake waiting */
79 buf->status = BUFSTAT_READY;
80 wake_up_interruptible(&dev->wait_data);
83 /*=========================================================================*/
86 /* function expects dev->io_mutex to be hold by caller */
87 int hdpvr_cancel_queue(struct hdpvr_device *dev)
89 struct hdpvr_buffer *buf;
91 list_for_each_entry(buf, &dev->rec_buff_list, buff_list) {
92 usb_kill_urb(buf->urb);
93 buf->status = BUFSTAT_AVAILABLE;
96 list_splice_init(&dev->rec_buff_list, dev->free_buff_list.prev);
101 static int hdpvr_free_queue(struct list_head *q)
103 struct list_head *tmp;
105 struct hdpvr_buffer *buf;
108 for (p = q->next; p != q;) {
109 buf = list_entry(p, struct hdpvr_buffer, buff_list);
112 usb_free_coherent(urb->dev, urb->transfer_buffer_length,
113 urb->transfer_buffer, urb->transfer_dma);
124 /* function expects dev->io_mutex to be hold by caller */
125 int hdpvr_free_buffers(struct hdpvr_device *dev)
127 hdpvr_cancel_queue(dev);
129 hdpvr_free_queue(&dev->free_buff_list);
130 hdpvr_free_queue(&dev->rec_buff_list);
135 /* function expects dev->io_mutex to be hold by caller */
136 int hdpvr_alloc_buffers(struct hdpvr_device *dev, uint count)
139 int retval = -ENOMEM;
141 struct hdpvr_buffer *buf;
144 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
145 "allocating %u buffers\n", count);
147 for (i = 0; i < count; i++) {
149 buf = kzalloc(sizeof(struct hdpvr_buffer), GFP_KERNEL);
151 v4l2_err(&dev->v4l2_dev, "cannot allocate buffer\n");
156 urb = usb_alloc_urb(0, GFP_KERNEL);
161 mem = usb_alloc_coherent(dev->udev, dev->bulk_in_size, GFP_KERNEL,
164 v4l2_err(&dev->v4l2_dev,
165 "cannot allocate usb transfer buffer\n");
166 goto exit_urb_buffer;
169 usb_fill_bulk_urb(buf->urb, dev->udev,
170 usb_rcvbulkpipe(dev->udev,
171 dev->bulk_in_endpointAddr),
172 mem, dev->bulk_in_size,
173 hdpvr_read_bulk_callback, buf);
175 buf->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
176 buf->status = BUFSTAT_AVAILABLE;
177 list_add_tail(&buf->buff_list, &dev->free_buff_list);
185 hdpvr_free_buffers(dev);
189 static int hdpvr_submit_buffers(struct hdpvr_device *dev)
191 struct hdpvr_buffer *buf;
193 int ret = 0, err_count = 0;
195 mutex_lock(&dev->io_mutex);
197 while (dev->status == STATUS_STREAMING &&
198 !list_empty(&dev->free_buff_list)) {
200 buf = list_entry(dev->free_buff_list.next, struct hdpvr_buffer,
202 if (buf->status != BUFSTAT_AVAILABLE) {
203 v4l2_err(&dev->v4l2_dev,
204 "buffer not marked as available\n");
211 urb->actual_length = 0;
212 ret = usb_submit_urb(urb, GFP_KERNEL);
214 v4l2_err(&dev->v4l2_dev,
215 "usb_submit_urb in %s returned %d\n",
221 buf->status = BUFSTAT_INPROGRESS;
222 list_move_tail(&buf->buff_list, &dev->rec_buff_list);
225 print_buffer_status();
226 mutex_unlock(&dev->io_mutex);
230 static struct hdpvr_buffer *hdpvr_get_next_buffer(struct hdpvr_device *dev)
232 struct hdpvr_buffer *buf;
234 mutex_lock(&dev->io_mutex);
236 if (list_empty(&dev->rec_buff_list)) {
237 mutex_unlock(&dev->io_mutex);
241 buf = list_entry(dev->rec_buff_list.next, struct hdpvr_buffer,
243 mutex_unlock(&dev->io_mutex);
248 static void hdpvr_transmit_buffers(struct work_struct *work)
250 struct hdpvr_device *dev = container_of(work, struct hdpvr_device,
253 while (dev->status == STATUS_STREAMING) {
255 if (hdpvr_submit_buffers(dev)) {
256 v4l2_err(&dev->v4l2_dev, "couldn't submit buffers\n");
259 if (wait_event_interruptible(dev->wait_buffer,
260 !list_empty(&dev->free_buff_list) ||
261 dev->status != STATUS_STREAMING))
265 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
266 "transmit worker exited\n");
269 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
270 "transmit buffers errored\n");
271 dev->status = STATUS_ERROR;
274 /* function expects dev->io_mutex to be hold by caller */
275 static int hdpvr_start_streaming(struct hdpvr_device *dev)
278 struct hdpvr_video_info vidinf;
280 if (dev->status == STATUS_STREAMING)
282 if (dev->status != STATUS_IDLE)
285 ret = get_video_info(dev, &vidinf);
291 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
292 "no video signal at input %d\n", dev->options.video_input);
296 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
297 "video signal: %dx%d@%dhz\n", vidinf.width,
298 vidinf.height, vidinf.fps);
300 /* start streaming 2 request */
301 ret = usb_control_msg(dev->udev,
302 usb_sndctrlpipe(dev->udev, 0),
303 0xb8, 0x38, 0x1, 0, NULL, 0, 8000);
304 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
305 "encoder start control request returned %d\n", ret);
309 ret = hdpvr_config_call(dev, CTRL_START_STREAMING_VALUE, 0x00);
313 dev->status = STATUS_STREAMING;
315 schedule_work(&dev->worker);
317 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
318 "streaming started\n");
324 /* function expects dev->io_mutex to be hold by caller */
325 static int hdpvr_stop_streaming(struct hdpvr_device *dev)
331 if (dev->status == STATUS_IDLE)
333 else if (dev->status != STATUS_STREAMING)
336 buf = kmalloc(dev->bulk_in_size, GFP_KERNEL);
338 v4l2_err(&dev->v4l2_dev, "failed to allocate temporary buffer for emptying the internal device buffer. Next capture start will be slow\n");
340 dev->status = STATUS_SHUTTING_DOWN;
341 hdpvr_config_call(dev, CTRL_STOP_STREAMING_VALUE, 0x00);
342 mutex_unlock(&dev->io_mutex);
344 wake_up_interruptible(&dev->wait_buffer);
347 flush_work(&dev->worker);
349 mutex_lock(&dev->io_mutex);
350 /* kill the still outstanding urbs */
351 hdpvr_cancel_queue(dev);
353 /* emptying the device buffer beforeshutting it down */
354 while (buf && ++c < 500 &&
355 !usb_bulk_msg(dev->udev,
356 usb_rcvbulkpipe(dev->udev,
357 dev->bulk_in_endpointAddr),
358 buf, dev->bulk_in_size, &actual_length,
360 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
361 "%2d: got %d bytes\n", c, actual_length);
364 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
365 "used %d urbs to empty device buffers\n", c-1);
368 dev->status = STATUS_IDLE;
374 /*=======================================================================*/
376 * video 4 linux 2 file operations
379 static int hdpvr_open(struct file *file)
381 struct hdpvr_fh *fh = kzalloc(sizeof(*fh), GFP_KERNEL);
385 fh->legacy_mode = true;
386 v4l2_fh_init(&fh->fh, video_devdata(file));
387 v4l2_fh_add(&fh->fh);
388 file->private_data = fh;
392 static int hdpvr_release(struct file *file)
394 struct hdpvr_device *dev = video_drvdata(file);
396 mutex_lock(&dev->io_mutex);
397 if (file->private_data == dev->owner) {
398 hdpvr_stop_streaming(dev);
401 mutex_unlock(&dev->io_mutex);
403 return v4l2_fh_release(file);
408 * will allocate buffers when called for the first time
410 static ssize_t hdpvr_read(struct file *file, char __user *buffer, size_t count,
413 struct hdpvr_device *dev = video_drvdata(file);
414 struct hdpvr_buffer *buf = NULL;
416 unsigned int ret = 0;
422 mutex_lock(&dev->io_mutex);
423 if (dev->status == STATUS_IDLE) {
424 if (hdpvr_start_streaming(dev)) {
425 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
426 "start_streaming failed\n");
429 dev->status = STATUS_IDLE;
430 mutex_unlock(&dev->io_mutex);
433 dev->owner = file->private_data;
434 print_buffer_status();
436 mutex_unlock(&dev->io_mutex);
438 /* wait for the first buffer */
439 if (!(file->f_flags & O_NONBLOCK)) {
440 if (wait_event_interruptible(dev->wait_data,
441 !list_empty_careful(&dev->rec_buff_list)))
445 buf = hdpvr_get_next_buffer(dev);
447 while (count > 0 && buf) {
449 if (buf->status != BUFSTAT_READY &&
450 dev->status != STATUS_DISCONNECTED) {
452 /* return nonblocking */
453 if (file->f_flags & O_NONBLOCK) {
459 err = wait_event_interruptible_timeout(dev->wait_data,
460 buf->status == BUFSTAT_READY,
461 msecs_to_jiffies(1000));
467 v4l2_info(&dev->v4l2_dev,
468 "timeout: restart streaming\n");
469 mutex_lock(&dev->io_mutex);
470 hdpvr_stop_streaming(dev);
471 mutex_unlock(&dev->io_mutex);
473 * The FW needs about 4 seconds after streaming
474 * stopped before it is ready to restart
478 err = hdpvr_start_streaming(dev);
486 if (buf->status != BUFSTAT_READY)
489 /* set remaining bytes to copy */
491 rem = urb->actual_length - buf->pos;
492 cnt = rem > count ? count : rem;
494 if (copy_to_user(buffer, urb->transfer_buffer + buf->pos,
496 v4l2_err(&dev->v4l2_dev, "read: copy_to_user failed\n");
507 /* finished, take next buffer */
508 if (buf->pos == urb->actual_length) {
509 mutex_lock(&dev->io_mutex);
511 buf->status = BUFSTAT_AVAILABLE;
513 list_move_tail(&buf->buff_list, &dev->free_buff_list);
515 print_buffer_status();
517 mutex_unlock(&dev->io_mutex);
519 wake_up_interruptible(&dev->wait_buffer);
521 buf = hdpvr_get_next_buffer(dev);
530 static unsigned int hdpvr_poll(struct file *filp, poll_table *wait)
532 unsigned long req_events = poll_requested_events(wait);
533 struct hdpvr_buffer *buf = NULL;
534 struct hdpvr_device *dev = video_drvdata(filp);
535 unsigned int mask = v4l2_ctrl_poll(filp, wait);
537 if (!(req_events & (POLLIN | POLLRDNORM)))
540 mutex_lock(&dev->io_mutex);
542 if (dev->status == STATUS_IDLE) {
543 if (hdpvr_start_streaming(dev)) {
544 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
545 "start_streaming failed\n");
546 dev->status = STATUS_IDLE;
548 dev->owner = filp->private_data;
551 print_buffer_status();
553 mutex_unlock(&dev->io_mutex);
555 buf = hdpvr_get_next_buffer(dev);
556 /* only wait if no data is available */
557 if (!buf || buf->status != BUFSTAT_READY) {
558 poll_wait(filp, &dev->wait_data, wait);
559 buf = hdpvr_get_next_buffer(dev);
561 if (buf && buf->status == BUFSTAT_READY)
562 mask |= POLLIN | POLLRDNORM;
568 static const struct v4l2_file_operations hdpvr_fops = {
569 .owner = THIS_MODULE,
571 .release = hdpvr_release,
574 .unlocked_ioctl = video_ioctl2,
577 /*=======================================================================*/
579 * V4L2 ioctl handling
582 static int vidioc_querycap(struct file *file, void *priv,
583 struct v4l2_capability *cap)
585 struct hdpvr_device *dev = video_drvdata(file);
587 strcpy(cap->driver, "hdpvr");
588 strcpy(cap->card, "Hauppauge HD PVR");
589 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
590 cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_AUDIO |
592 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
596 static int vidioc_s_std(struct file *file, void *_fh,
599 struct hdpvr_device *dev = video_drvdata(file);
600 struct hdpvr_fh *fh = _fh;
603 if (!fh->legacy_mode && dev->options.video_input == HDPVR_COMPONENT)
605 if (dev->status != STATUS_IDLE)
607 if (std & V4L2_STD_525_60)
611 dev->height = std_type ? 576 : 480;
613 return hdpvr_config_call(dev, CTRL_VIDEO_STD_TYPE, std_type);
616 static int vidioc_g_std(struct file *file, void *_fh,
619 struct hdpvr_device *dev = video_drvdata(file);
620 struct hdpvr_fh *fh = _fh;
622 if (!fh->legacy_mode && dev->options.video_input == HDPVR_COMPONENT)
628 static int vidioc_querystd(struct file *file, void *_fh, v4l2_std_id *a)
630 struct hdpvr_device *dev = video_drvdata(file);
631 struct hdpvr_video_info vid_info;
632 struct hdpvr_fh *fh = _fh;
635 *a = V4L2_STD_UNKNOWN;
636 if (dev->options.video_input == HDPVR_COMPONENT)
637 return fh->legacy_mode ? 0 : -ENODATA;
638 ret = get_video_info(dev, &vid_info);
639 if (vid_info.valid && vid_info.width == 720 &&
640 (vid_info.height == 480 || vid_info.height == 576)) {
641 *a = (vid_info.height == 480) ?
642 V4L2_STD_525_60 : V4L2_STD_625_50;
647 static int vidioc_s_dv_timings(struct file *file, void *_fh,
648 struct v4l2_dv_timings *timings)
650 struct hdpvr_device *dev = video_drvdata(file);
651 struct hdpvr_fh *fh = _fh;
654 fh->legacy_mode = false;
655 if (dev->options.video_input)
657 if (dev->status != STATUS_IDLE)
659 for (i = 0; i < ARRAY_SIZE(hdpvr_dv_timings); i++)
660 if (v4l2_match_dv_timings(timings, hdpvr_dv_timings + i, 0, false))
662 if (i == ARRAY_SIZE(hdpvr_dv_timings))
664 dev->cur_dv_timings = hdpvr_dv_timings[i];
665 dev->width = hdpvr_dv_timings[i].bt.width;
666 dev->height = hdpvr_dv_timings[i].bt.height;
670 static int vidioc_g_dv_timings(struct file *file, void *_fh,
671 struct v4l2_dv_timings *timings)
673 struct hdpvr_device *dev = video_drvdata(file);
674 struct hdpvr_fh *fh = _fh;
676 fh->legacy_mode = false;
677 if (dev->options.video_input)
679 *timings = dev->cur_dv_timings;
683 static int vidioc_query_dv_timings(struct file *file, void *_fh,
684 struct v4l2_dv_timings *timings)
686 struct hdpvr_device *dev = video_drvdata(file);
687 struct hdpvr_fh *fh = _fh;
688 struct hdpvr_video_info vid_info;
693 fh->legacy_mode = false;
694 if (dev->options.video_input)
696 ret = get_video_info(dev, &vid_info);
701 interlaced = vid_info.fps <= 30;
702 for (i = 0; i < ARRAY_SIZE(hdpvr_dv_timings); i++) {
703 const struct v4l2_bt_timings *bt = &hdpvr_dv_timings[i].bt;
708 hsize = V4L2_DV_BT_FRAME_WIDTH(bt);
709 vsize = V4L2_DV_BT_FRAME_HEIGHT(bt);
710 fps = (unsigned)bt->pixelclock / (hsize * vsize);
711 if (bt->width != vid_info.width ||
712 bt->height != vid_info.height ||
713 bt->interlaced != interlaced ||
714 (fps != vid_info.fps && fps + 1 != vid_info.fps))
716 *timings = hdpvr_dv_timings[i];
719 if (i == ARRAY_SIZE(hdpvr_dv_timings))
725 static int vidioc_enum_dv_timings(struct file *file, void *_fh,
726 struct v4l2_enum_dv_timings *timings)
728 struct hdpvr_device *dev = video_drvdata(file);
729 struct hdpvr_fh *fh = _fh;
731 fh->legacy_mode = false;
732 memset(timings->reserved, 0, sizeof(timings->reserved));
733 if (dev->options.video_input)
735 if (timings->index >= ARRAY_SIZE(hdpvr_dv_timings))
737 timings->timings = hdpvr_dv_timings[timings->index];
741 static int vidioc_dv_timings_cap(struct file *file, void *_fh,
742 struct v4l2_dv_timings_cap *cap)
744 struct hdpvr_device *dev = video_drvdata(file);
745 struct hdpvr_fh *fh = _fh;
747 fh->legacy_mode = false;
748 if (dev->options.video_input)
750 cap->type = V4L2_DV_BT_656_1120;
751 cap->bt.min_width = 720;
752 cap->bt.max_width = 1920;
753 cap->bt.min_height = 480;
754 cap->bt.max_height = 1080;
755 cap->bt.min_pixelclock = 27000000;
756 cap->bt.max_pixelclock = 74250000;
757 cap->bt.standards = V4L2_DV_BT_STD_CEA861;
758 cap->bt.capabilities = V4L2_DV_BT_CAP_INTERLACED | V4L2_DV_BT_CAP_PROGRESSIVE;
762 static const char *iname[] = {
763 [HDPVR_COMPONENT] = "Component",
764 [HDPVR_SVIDEO] = "S-Video",
765 [HDPVR_COMPOSITE] = "Composite",
768 static int vidioc_enum_input(struct file *file, void *_fh, struct v4l2_input *i)
773 if (n >= HDPVR_VIDEO_INPUTS)
776 i->type = V4L2_INPUT_TYPE_CAMERA;
778 strncpy(i->name, iname[n], sizeof(i->name) - 1);
779 i->name[sizeof(i->name) - 1] = '\0';
781 i->audioset = 1<<HDPVR_RCA_FRONT | 1<<HDPVR_RCA_BACK | 1<<HDPVR_SPDIF;
783 i->capabilities = n ? V4L2_IN_CAP_STD : V4L2_IN_CAP_DV_TIMINGS;
784 i->std = n ? V4L2_STD_ALL : 0;
789 static int vidioc_s_input(struct file *file, void *_fh,
792 struct hdpvr_device *dev = video_drvdata(file);
795 if (index >= HDPVR_VIDEO_INPUTS)
798 if (dev->status != STATUS_IDLE)
801 retval = hdpvr_config_call(dev, CTRL_VIDEO_INPUT_VALUE, index+1);
803 dev->options.video_input = index;
805 * Unfortunately gstreamer calls ENUMSTD and bails out if it
806 * won't find any formats, even though component input is
807 * selected. This means that we have to leave tvnorms at
808 * V4L2_STD_ALL. We cannot use the 'legacy' trick since
809 * tvnorms is set at the device node level and not at the
812 * Comment this out for now, but if the legacy mode can be
813 * removed in the future, then this code should be enabled
815 dev->video_dev.tvnorms =
816 (index != HDPVR_COMPONENT) ? V4L2_STD_ALL : 0;
823 static int vidioc_g_input(struct file *file, void *private_data,
826 struct hdpvr_device *dev = video_drvdata(file);
828 *index = dev->options.video_input;
833 static const char *audio_iname[] = {
834 [HDPVR_RCA_FRONT] = "RCA front",
835 [HDPVR_RCA_BACK] = "RCA back",
836 [HDPVR_SPDIF] = "SPDIF",
839 static int vidioc_enumaudio(struct file *file, void *priv,
840 struct v4l2_audio *audio)
845 if (n >= HDPVR_AUDIO_INPUTS)
848 audio->capability = V4L2_AUDCAP_STEREO;
850 strncpy(audio->name, audio_iname[n], sizeof(audio->name) - 1);
851 audio->name[sizeof(audio->name) - 1] = '\0';
856 static int vidioc_s_audio(struct file *file, void *private_data,
857 const struct v4l2_audio *audio)
859 struct hdpvr_device *dev = video_drvdata(file);
862 if (audio->index >= HDPVR_AUDIO_INPUTS)
865 if (dev->status != STATUS_IDLE)
868 retval = hdpvr_set_audio(dev, audio->index+1, dev->options.audio_codec);
870 dev->options.audio_input = audio->index;
875 static int vidioc_g_audio(struct file *file, void *private_data,
876 struct v4l2_audio *audio)
878 struct hdpvr_device *dev = video_drvdata(file);
880 audio->index = dev->options.audio_input;
881 audio->capability = V4L2_AUDCAP_STEREO;
882 strncpy(audio->name, audio_iname[audio->index], sizeof(audio->name));
883 audio->name[sizeof(audio->name) - 1] = '\0';
887 static int hdpvr_try_ctrl(struct v4l2_ctrl *ctrl)
889 struct hdpvr_device *dev =
890 container_of(ctrl->handler, struct hdpvr_device, hdl);
893 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
894 if (ctrl->val == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR &&
895 dev->video_bitrate->val >= dev->video_bitrate_peak->val)
896 dev->video_bitrate_peak->val =
897 dev->video_bitrate->val + 100000;
903 static int hdpvr_s_ctrl(struct v4l2_ctrl *ctrl)
905 struct hdpvr_device *dev =
906 container_of(ctrl->handler, struct hdpvr_device, hdl);
907 struct hdpvr_options *opt = &dev->options;
911 case V4L2_CID_BRIGHTNESS:
912 ret = hdpvr_config_call(dev, CTRL_BRIGHTNESS, ctrl->val);
915 dev->options.brightness = ctrl->val;
917 case V4L2_CID_CONTRAST:
918 ret = hdpvr_config_call(dev, CTRL_CONTRAST, ctrl->val);
921 dev->options.contrast = ctrl->val;
923 case V4L2_CID_SATURATION:
924 ret = hdpvr_config_call(dev, CTRL_SATURATION, ctrl->val);
927 dev->options.saturation = ctrl->val;
930 ret = hdpvr_config_call(dev, CTRL_HUE, ctrl->val);
933 dev->options.hue = ctrl->val;
935 case V4L2_CID_SHARPNESS:
936 ret = hdpvr_config_call(dev, CTRL_SHARPNESS, ctrl->val);
939 dev->options.sharpness = ctrl->val;
941 case V4L2_CID_MPEG_AUDIO_ENCODING:
942 if (dev->flags & HDPVR_FLAG_AC3_CAP) {
943 opt->audio_codec = ctrl->val;
944 return hdpvr_set_audio(dev, opt->audio_input + 1,
948 case V4L2_CID_MPEG_VIDEO_ENCODING:
950 /* case V4L2_CID_MPEG_VIDEO_B_FRAMES: */
951 /* if (ctrl->value == 0 && !(opt->gop_mode & 0x2)) { */
952 /* opt->gop_mode |= 0x2; */
953 /* hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, */
954 /* opt->gop_mode); */
956 /* if (ctrl->value == 128 && opt->gop_mode & 0x2) { */
957 /* opt->gop_mode &= ~0x2; */
958 /* hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, */
959 /* opt->gop_mode); */
962 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: {
963 uint peak_bitrate = dev->video_bitrate_peak->val / 100000;
964 uint bitrate = dev->video_bitrate->val / 100000;
967 if (ctrl->val == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR)
968 opt->bitrate_mode = HDPVR_CONSTANT;
970 opt->bitrate_mode = HDPVR_VARIABLE_AVERAGE;
971 hdpvr_config_call(dev, CTRL_BITRATE_MODE_VALUE,
973 v4l2_ctrl_activate(dev->video_bitrate_peak,
974 ctrl->val != V4L2_MPEG_VIDEO_BITRATE_MODE_CBR);
977 if (dev->video_bitrate_peak->is_new ||
978 dev->video_bitrate->is_new) {
979 opt->bitrate = bitrate;
980 opt->peak_bitrate = peak_bitrate;
981 hdpvr_set_bitrate(dev);
985 case V4L2_CID_MPEG_STREAM_TYPE:
993 static int vidioc_enum_fmt_vid_cap(struct file *file, void *private_data,
994 struct v4l2_fmtdesc *f)
999 f->flags = V4L2_FMT_FLAG_COMPRESSED;
1000 strncpy(f->description, "MPEG2-TS with AVC/AAC streams", 32);
1001 f->pixelformat = V4L2_PIX_FMT_MPEG;
1006 static int vidioc_g_fmt_vid_cap(struct file *file, void *_fh,
1007 struct v4l2_format *f)
1009 struct hdpvr_device *dev = video_drvdata(file);
1010 struct hdpvr_fh *fh = _fh;
1014 * The original driver would always returns the current detected
1015 * resolution as the format (and EFAULT if it couldn't be detected).
1016 * With the introduction of VIDIOC_QUERY_DV_TIMINGS there is now a
1017 * better way of doing this, but to stay compatible with existing
1018 * applications we assume legacy mode every time an application opens
1019 * the device. Only if one of the new DV_TIMINGS ioctls is called
1020 * will the filehandle go into 'normal' mode where g_fmt returns the
1023 if (fh->legacy_mode) {
1024 struct hdpvr_video_info vid_info;
1026 ret = get_video_info(dev, &vid_info);
1029 if (!vid_info.valid)
1031 f->fmt.pix.width = vid_info.width;
1032 f->fmt.pix.height = vid_info.height;
1034 f->fmt.pix.width = dev->width;
1035 f->fmt.pix.height = dev->height;
1037 f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
1038 f->fmt.pix.sizeimage = dev->bulk_in_size;
1039 f->fmt.pix.bytesperline = 0;
1040 if (f->fmt.pix.width == 720) {
1042 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1043 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1046 f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
1047 f->fmt.pix.field = V4L2_FIELD_NONE;
1052 static int vidioc_encoder_cmd(struct file *filp, void *priv,
1053 struct v4l2_encoder_cmd *a)
1055 struct hdpvr_device *dev = video_drvdata(filp);
1058 mutex_lock(&dev->io_mutex);
1062 case V4L2_ENC_CMD_START:
1063 if (dev->owner && filp->private_data != dev->owner) {
1067 if (dev->status == STATUS_STREAMING)
1069 res = hdpvr_start_streaming(dev);
1071 dev->owner = filp->private_data;
1073 dev->status = STATUS_IDLE;
1075 case V4L2_ENC_CMD_STOP:
1076 if (dev->owner && filp->private_data != dev->owner) {
1080 if (dev->status == STATUS_IDLE)
1082 res = hdpvr_stop_streaming(dev);
1087 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
1088 "Unsupported encoder cmd %d\n", a->cmd);
1093 mutex_unlock(&dev->io_mutex);
1097 static int vidioc_try_encoder_cmd(struct file *filp, void *priv,
1098 struct v4l2_encoder_cmd *a)
1102 case V4L2_ENC_CMD_START:
1103 case V4L2_ENC_CMD_STOP:
1110 static const struct v4l2_ioctl_ops hdpvr_ioctl_ops = {
1111 .vidioc_querycap = vidioc_querycap,
1112 .vidioc_s_std = vidioc_s_std,
1113 .vidioc_g_std = vidioc_g_std,
1114 .vidioc_querystd = vidioc_querystd,
1115 .vidioc_s_dv_timings = vidioc_s_dv_timings,
1116 .vidioc_g_dv_timings = vidioc_g_dv_timings,
1117 .vidioc_query_dv_timings= vidioc_query_dv_timings,
1118 .vidioc_enum_dv_timings = vidioc_enum_dv_timings,
1119 .vidioc_dv_timings_cap = vidioc_dv_timings_cap,
1120 .vidioc_enum_input = vidioc_enum_input,
1121 .vidioc_g_input = vidioc_g_input,
1122 .vidioc_s_input = vidioc_s_input,
1123 .vidioc_enumaudio = vidioc_enumaudio,
1124 .vidioc_g_audio = vidioc_g_audio,
1125 .vidioc_s_audio = vidioc_s_audio,
1126 .vidioc_enum_fmt_vid_cap= vidioc_enum_fmt_vid_cap,
1127 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1128 .vidioc_s_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1129 .vidioc_try_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1130 .vidioc_encoder_cmd = vidioc_encoder_cmd,
1131 .vidioc_try_encoder_cmd = vidioc_try_encoder_cmd,
1132 .vidioc_log_status = v4l2_ctrl_log_status,
1133 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1134 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1137 static void hdpvr_device_release(struct video_device *vdev)
1139 struct hdpvr_device *dev = video_get_drvdata(vdev);
1142 flush_work(&dev->worker);
1144 v4l2_device_unregister(&dev->v4l2_dev);
1145 v4l2_ctrl_handler_free(&dev->hdl);
1147 /* deregister I2C adapter */
1148 #if IS_ENABLED(CONFIG_I2C)
1149 mutex_lock(&dev->i2c_mutex);
1150 i2c_del_adapter(&dev->i2c_adapter);
1151 mutex_unlock(&dev->i2c_mutex);
1152 #endif /* CONFIG_I2C */
1154 kfree(dev->usbc_buf);
1158 static const struct video_device hdpvr_video_template = {
1159 .fops = &hdpvr_fops,
1160 .release = hdpvr_device_release,
1161 .ioctl_ops = &hdpvr_ioctl_ops,
1162 .tvnorms = V4L2_STD_ALL,
1165 static const struct v4l2_ctrl_ops hdpvr_ctrl_ops = {
1166 .try_ctrl = hdpvr_try_ctrl,
1167 .s_ctrl = hdpvr_s_ctrl,
1170 int hdpvr_register_videodev(struct hdpvr_device *dev, struct device *parent,
1173 struct v4l2_ctrl_handler *hdl = &dev->hdl;
1174 bool ac3 = dev->flags & HDPVR_FLAG_AC3_CAP;
1177 // initialize dev->worker
1178 INIT_WORK(&dev->worker, hdpvr_transmit_buffers);
1180 dev->cur_std = V4L2_STD_525_60;
1183 dev->cur_dv_timings = hdpvr_dv_timings[HDPVR_DEF_DV_TIMINGS_IDX];
1184 v4l2_ctrl_handler_init(hdl, 11);
1185 if (dev->fw_ver > 0x15) {
1186 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1187 V4L2_CID_BRIGHTNESS, 0x0, 0xff, 1, 0x80);
1188 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1189 V4L2_CID_CONTRAST, 0x0, 0xff, 1, 0x40);
1190 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1191 V4L2_CID_SATURATION, 0x0, 0xff, 1, 0x40);
1192 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1193 V4L2_CID_HUE, 0x0, 0x1e, 1, 0xf);
1194 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1195 V4L2_CID_SHARPNESS, 0x0, 0xff, 1, 0x80);
1197 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1198 V4L2_CID_BRIGHTNESS, 0x0, 0xff, 1, 0x86);
1199 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1200 V4L2_CID_CONTRAST, 0x0, 0xff, 1, 0x80);
1201 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1202 V4L2_CID_SATURATION, 0x0, 0xff, 1, 0x80);
1203 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1204 V4L2_CID_HUE, 0x0, 0xff, 1, 0x80);
1205 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1206 V4L2_CID_SHARPNESS, 0x0, 0xff, 1, 0x80);
1209 v4l2_ctrl_new_std_menu(hdl, &hdpvr_ctrl_ops,
1210 V4L2_CID_MPEG_STREAM_TYPE,
1211 V4L2_MPEG_STREAM_TYPE_MPEG2_TS,
1212 0x1, V4L2_MPEG_STREAM_TYPE_MPEG2_TS);
1213 v4l2_ctrl_new_std_menu(hdl, &hdpvr_ctrl_ops,
1214 V4L2_CID_MPEG_AUDIO_ENCODING,
1215 ac3 ? V4L2_MPEG_AUDIO_ENCODING_AC3 : V4L2_MPEG_AUDIO_ENCODING_AAC,
1216 0x7, ac3 ? dev->options.audio_codec : V4L2_MPEG_AUDIO_ENCODING_AAC);
1217 v4l2_ctrl_new_std_menu(hdl, &hdpvr_ctrl_ops,
1218 V4L2_CID_MPEG_VIDEO_ENCODING,
1219 V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC, 0x3,
1220 V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC);
1222 dev->video_mode = v4l2_ctrl_new_std_menu(hdl, &hdpvr_ctrl_ops,
1223 V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
1224 V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 0,
1225 V4L2_MPEG_VIDEO_BITRATE_MODE_CBR);
1227 dev->video_bitrate = v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1228 V4L2_CID_MPEG_VIDEO_BITRATE,
1229 1000000, 13500000, 100000, 6500000);
1230 dev->video_bitrate_peak = v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1231 V4L2_CID_MPEG_VIDEO_BITRATE_PEAK,
1232 1100000, 20200000, 100000, 9000000);
1233 dev->v4l2_dev.ctrl_handler = hdl;
1236 v4l2_err(&dev->v4l2_dev, "Could not register controls\n");
1239 v4l2_ctrl_cluster(3, &dev->video_mode);
1240 res = v4l2_ctrl_handler_setup(hdl);
1242 v4l2_err(&dev->v4l2_dev, "Could not setup controls\n");
1246 /* setup and register video device */
1247 dev->video_dev = hdpvr_video_template;
1248 strcpy(dev->video_dev.name, "Hauppauge HD PVR");
1249 dev->video_dev.v4l2_dev = &dev->v4l2_dev;
1250 video_set_drvdata(&dev->video_dev, dev);
1252 res = video_register_device(&dev->video_dev, VFL_TYPE_GRABBER, devnum);
1254 v4l2_err(&dev->v4l2_dev, "video_device registration failed\n");
1260 v4l2_ctrl_handler_free(hdl);