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/version.h>
21 #include <linux/workqueue.h>
23 #include <linux/videodev2.h>
24 #include <media/v4l2-dev.h>
25 #include <media/v4l2-common.h>
26 #include <media/v4l2-ioctl.h>
29 #define BULK_URB_TIMEOUT 1250 /* 1.25 seconds */
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", \
35 list_size(&dev->free_buff_list), \
36 list_size(&dev->rec_buff_list)); }
39 struct hdpvr_device *dev;
42 static uint list_size(struct list_head *list)
44 struct list_head *tmp;
47 list_for_each(tmp, list) {
54 /*=========================================================================*/
56 static void hdpvr_read_bulk_callback(struct urb *urb)
58 struct hdpvr_buffer *buf = (struct hdpvr_buffer *)urb->context;
59 struct hdpvr_device *dev = buf->dev;
61 /* marking buffer as received and wake waiting */
62 buf->status = BUFSTAT_READY;
63 wake_up_interruptible(&dev->wait_data);
66 /*=========================================================================*/
69 /* function expects dev->io_mutex to be hold by caller */
70 int hdpvr_cancel_queue(struct hdpvr_device *dev)
72 struct hdpvr_buffer *buf;
74 list_for_each_entry(buf, &dev->rec_buff_list, buff_list) {
75 usb_kill_urb(buf->urb);
76 buf->status = BUFSTAT_AVAILABLE;
79 list_splice_init(&dev->rec_buff_list, dev->free_buff_list.prev);
84 static int hdpvr_free_queue(struct list_head *q)
86 struct list_head *tmp;
88 struct hdpvr_buffer *buf;
91 for (p = q->next; p != q;) {
92 buf = list_entry(p, struct hdpvr_buffer, buff_list);
95 usb_free_coherent(urb->dev, urb->transfer_buffer_length,
96 urb->transfer_buffer, urb->transfer_dma);
107 /* function expects dev->io_mutex to be hold by caller */
108 int hdpvr_free_buffers(struct hdpvr_device *dev)
110 hdpvr_cancel_queue(dev);
112 hdpvr_free_queue(&dev->free_buff_list);
113 hdpvr_free_queue(&dev->rec_buff_list);
118 /* function expects dev->io_mutex to be hold by caller */
119 int hdpvr_alloc_buffers(struct hdpvr_device *dev, uint count)
122 int retval = -ENOMEM;
124 struct hdpvr_buffer *buf;
127 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
128 "allocating %u buffers\n", count);
130 for (i = 0; i < count; i++) {
132 buf = kzalloc(sizeof(struct hdpvr_buffer), GFP_KERNEL);
134 v4l2_err(&dev->v4l2_dev, "cannot allocate buffer\n");
139 urb = usb_alloc_urb(0, GFP_KERNEL);
141 v4l2_err(&dev->v4l2_dev, "cannot allocate urb\n");
146 mem = usb_alloc_coherent(dev->udev, dev->bulk_in_size, GFP_KERNEL,
149 v4l2_err(&dev->v4l2_dev,
150 "cannot allocate usb transfer buffer\n");
151 goto exit_urb_buffer;
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);
160 buf->status = BUFSTAT_AVAILABLE;
161 list_add_tail(&buf->buff_list, &dev->free_buff_list);
169 hdpvr_free_buffers(dev);
173 static int hdpvr_submit_buffers(struct hdpvr_device *dev)
175 struct hdpvr_buffer *buf;
177 int ret = 0, err_count = 0;
179 mutex_lock(&dev->io_mutex);
181 while (dev->status == STATUS_STREAMING &&
182 !list_empty(&dev->free_buff_list)) {
184 buf = list_entry(dev->free_buff_list.next, struct hdpvr_buffer,
186 if (buf->status != BUFSTAT_AVAILABLE) {
187 v4l2_err(&dev->v4l2_dev,
188 "buffer not marked as available\n");
195 urb->actual_length = 0;
196 ret = usb_submit_urb(urb, GFP_KERNEL);
198 v4l2_err(&dev->v4l2_dev,
199 "usb_submit_urb in %s returned %d\n",
205 buf->status = BUFSTAT_INPROGRESS;
206 list_move_tail(&buf->buff_list, &dev->rec_buff_list);
209 print_buffer_status();
210 mutex_unlock(&dev->io_mutex);
214 static struct hdpvr_buffer *hdpvr_get_next_buffer(struct hdpvr_device *dev)
216 struct hdpvr_buffer *buf;
218 mutex_lock(&dev->io_mutex);
220 if (list_empty(&dev->rec_buff_list)) {
221 mutex_unlock(&dev->io_mutex);
225 buf = list_entry(dev->rec_buff_list.next, struct hdpvr_buffer,
227 mutex_unlock(&dev->io_mutex);
232 static void hdpvr_transmit_buffers(struct work_struct *work)
234 struct hdpvr_device *dev = container_of(work, struct hdpvr_device,
237 while (dev->status == STATUS_STREAMING) {
239 if (hdpvr_submit_buffers(dev)) {
240 v4l2_err(&dev->v4l2_dev, "couldn't submit buffers\n");
243 if (wait_event_interruptible(dev->wait_buffer,
244 !list_empty(&dev->free_buff_list) ||
245 dev->status != STATUS_STREAMING))
249 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
250 "transmit worker exited\n");
253 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
254 "transmit buffers errored\n");
255 dev->status = STATUS_ERROR;
258 /* function expects dev->io_mutex to be hold by caller */
259 static int hdpvr_start_streaming(struct hdpvr_device *dev)
262 struct hdpvr_video_info *vidinf;
264 if (dev->status == STATUS_STREAMING)
266 else if (dev->status != STATUS_IDLE)
269 vidinf = get_video_info(dev);
272 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
273 "video signal: %dx%d@%dhz\n", vidinf->width,
274 vidinf->height, vidinf->fps);
277 /* start streaming 2 request */
278 ret = usb_control_msg(dev->udev,
279 usb_sndctrlpipe(dev->udev, 0),
280 0xb8, 0x38, 0x1, 0, NULL, 0, 8000);
281 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
282 "encoder start control request returned %d\n", ret);
284 hdpvr_config_call(dev, CTRL_START_STREAMING_VALUE, 0x00);
286 INIT_WORK(&dev->worker, hdpvr_transmit_buffers);
287 queue_work(dev->workqueue, &dev->worker);
289 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
290 "streaming started\n");
291 dev->status = STATUS_STREAMING;
296 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
297 "no video signal at input %d\n", dev->options.video_input);
302 /* function expects dev->io_mutex to be hold by caller */
303 static int hdpvr_stop_streaming(struct hdpvr_device *dev)
309 if (dev->status == STATUS_IDLE)
311 else if (dev->status != STATUS_STREAMING)
314 buf = kmalloc(dev->bulk_in_size, GFP_KERNEL);
316 v4l2_err(&dev->v4l2_dev, "failed to allocate temporary buffer "
317 "for emptying the internal device buffer. "
318 "Next capture start will be slow\n");
320 dev->status = STATUS_SHUTTING_DOWN;
321 hdpvr_config_call(dev, CTRL_STOP_STREAMING_VALUE, 0x00);
322 mutex_unlock(&dev->io_mutex);
324 wake_up_interruptible(&dev->wait_buffer);
327 flush_workqueue(dev->workqueue);
329 mutex_lock(&dev->io_mutex);
330 /* kill the still outstanding urbs */
331 hdpvr_cancel_queue(dev);
333 /* emptying the device buffer beforeshutting it down */
334 while (buf && ++c < 500 &&
335 !usb_bulk_msg(dev->udev,
336 usb_rcvbulkpipe(dev->udev,
337 dev->bulk_in_endpointAddr),
338 buf, dev->bulk_in_size, &actual_length,
342 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
343 "%2d: got %d bytes\n", c, actual_length);
346 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
347 "used %d urbs to empty device buffers\n", c-1);
350 dev->status = STATUS_IDLE;
356 /*=======================================================================*/
358 * video 4 linux 2 file operations
361 static int hdpvr_open(struct file *file)
363 struct hdpvr_device *dev;
365 int retval = -ENOMEM;
367 dev = (struct hdpvr_device *)video_get_drvdata(video_devdata(file));
369 pr_err("open failing with with ENODEV\n");
374 fh = kzalloc(sizeof(struct hdpvr_fh), GFP_KERNEL);
376 v4l2_err(&dev->v4l2_dev, "Out of memory\n");
379 /* lock the device to allow correctly handling errors
381 mutex_lock(&dev->io_mutex);
383 mutex_unlock(&dev->io_mutex);
387 /* save our object in the file's private structure */
388 file->private_data = fh;
395 static int hdpvr_release(struct file *file)
397 struct hdpvr_fh *fh = file->private_data;
398 struct hdpvr_device *dev = fh->dev;
403 mutex_lock(&dev->io_mutex);
404 if (!(--dev->open_count) && dev->status == STATUS_STREAMING)
405 hdpvr_stop_streaming(dev);
407 mutex_unlock(&dev->io_mutex);
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_fh *fh = file->private_data;
420 struct hdpvr_device *dev = fh->dev;
421 struct hdpvr_buffer *buf = NULL;
423 unsigned int ret = 0;
432 mutex_lock(&dev->io_mutex);
433 if (dev->status == STATUS_IDLE) {
434 if (hdpvr_start_streaming(dev)) {
435 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
436 "start_streaming failed\n");
439 dev->status = STATUS_IDLE;
440 mutex_unlock(&dev->io_mutex);
443 print_buffer_status();
445 mutex_unlock(&dev->io_mutex);
447 /* wait for the first buffer */
448 if (!(file->f_flags & O_NONBLOCK)) {
449 if (wait_event_interruptible(dev->wait_data,
450 hdpvr_get_next_buffer(dev)))
454 buf = hdpvr_get_next_buffer(dev);
456 while (count > 0 && buf) {
458 if (buf->status != BUFSTAT_READY &&
459 dev->status != STATUS_DISCONNECTED) {
460 /* return nonblocking */
461 if (file->f_flags & O_NONBLOCK) {
467 if (wait_event_interruptible(dev->wait_data,
468 buf->status == BUFSTAT_READY)) {
474 if (buf->status != BUFSTAT_READY)
477 /* set remaining bytes to copy */
479 rem = urb->actual_length - buf->pos;
480 cnt = rem > count ? count : rem;
482 if (copy_to_user(buffer, urb->transfer_buffer + buf->pos,
484 v4l2_err(&dev->v4l2_dev, "read: copy_to_user failed\n");
495 /* finished, take next buffer */
496 if (buf->pos == urb->actual_length) {
497 mutex_lock(&dev->io_mutex);
499 buf->status = BUFSTAT_AVAILABLE;
501 list_move_tail(&buf->buff_list, &dev->free_buff_list);
503 print_buffer_status();
505 mutex_unlock(&dev->io_mutex);
507 wake_up_interruptible(&dev->wait_buffer);
509 buf = hdpvr_get_next_buffer(dev);
518 static unsigned int hdpvr_poll(struct file *filp, poll_table *wait)
520 struct hdpvr_buffer *buf = NULL;
521 struct hdpvr_fh *fh = filp->private_data;
522 struct hdpvr_device *dev = fh->dev;
523 unsigned int mask = 0;
525 mutex_lock(&dev->io_mutex);
527 if (!video_is_registered(dev->video_dev)) {
528 mutex_unlock(&dev->io_mutex);
532 if (dev->status == STATUS_IDLE) {
533 if (hdpvr_start_streaming(dev)) {
534 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
535 "start_streaming failed\n");
536 dev->status = STATUS_IDLE;
539 print_buffer_status();
541 mutex_unlock(&dev->io_mutex);
543 buf = hdpvr_get_next_buffer(dev);
544 /* only wait if no data is available */
545 if (!buf || buf->status != BUFSTAT_READY) {
546 poll_wait(filp, &dev->wait_data, wait);
547 buf = hdpvr_get_next_buffer(dev);
549 if (buf && buf->status == BUFSTAT_READY)
550 mask |= POLLIN | POLLRDNORM;
556 static const struct v4l2_file_operations hdpvr_fops = {
557 .owner = THIS_MODULE,
559 .release = hdpvr_release,
562 .unlocked_ioctl = video_ioctl2,
565 /*=======================================================================*/
567 * V4L2 ioctl handling
570 static int vidioc_querycap(struct file *file, void *priv,
571 struct v4l2_capability *cap)
573 struct hdpvr_device *dev = video_drvdata(file);
575 strcpy(cap->driver, "hdpvr");
576 strcpy(cap->card, "Hauppauge HD PVR");
577 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
578 cap->version = HDPVR_VERSION;
579 cap->capabilities = V4L2_CAP_VIDEO_CAPTURE |
585 static int vidioc_s_std(struct file *file, void *private_data,
588 struct hdpvr_fh *fh = file->private_data;
589 struct hdpvr_device *dev = fh->dev;
592 if (*std & (V4L2_STD_NTSC | V4L2_STD_PAL_60))
595 return hdpvr_config_call(dev, CTRL_VIDEO_STD_TYPE, std_type);
598 static const char *iname[] = {
599 [HDPVR_COMPONENT] = "Component",
600 [HDPVR_SVIDEO] = "S-Video",
601 [HDPVR_COMPOSITE] = "Composite",
604 static int vidioc_enum_input(struct file *file, void *priv,
605 struct v4l2_input *i)
607 struct hdpvr_fh *fh = file->private_data;
608 struct hdpvr_device *dev = fh->dev;
612 if (n >= HDPVR_VIDEO_INPUTS)
615 i->type = V4L2_INPUT_TYPE_CAMERA;
617 strncpy(i->name, iname[n], sizeof(i->name) - 1);
618 i->name[sizeof(i->name) - 1] = '\0';
620 i->audioset = 1<<HDPVR_RCA_FRONT | 1<<HDPVR_RCA_BACK | 1<<HDPVR_SPDIF;
622 i->std = dev->video_dev->tvnorms;
627 static int vidioc_s_input(struct file *file, void *private_data,
630 struct hdpvr_fh *fh = file->private_data;
631 struct hdpvr_device *dev = fh->dev;
634 if (index >= HDPVR_VIDEO_INPUTS)
637 if (dev->status != STATUS_IDLE)
640 retval = hdpvr_config_call(dev, CTRL_VIDEO_INPUT_VALUE, index+1);
642 dev->options.video_input = index;
647 static int vidioc_g_input(struct file *file, void *private_data,
650 struct hdpvr_fh *fh = file->private_data;
651 struct hdpvr_device *dev = fh->dev;
653 *index = dev->options.video_input;
658 static const char *audio_iname[] = {
659 [HDPVR_RCA_FRONT] = "RCA front",
660 [HDPVR_RCA_BACK] = "RCA back",
661 [HDPVR_SPDIF] = "SPDIF",
664 static int vidioc_enumaudio(struct file *file, void *priv,
665 struct v4l2_audio *audio)
670 if (n >= HDPVR_AUDIO_INPUTS)
673 audio->capability = V4L2_AUDCAP_STEREO;
675 strncpy(audio->name, audio_iname[n], sizeof(audio->name) - 1);
676 audio->name[sizeof(audio->name) - 1] = '\0';
681 static int vidioc_s_audio(struct file *file, void *private_data,
682 struct v4l2_audio *audio)
684 struct hdpvr_fh *fh = file->private_data;
685 struct hdpvr_device *dev = fh->dev;
688 if (audio->index >= HDPVR_AUDIO_INPUTS)
691 if (dev->status != STATUS_IDLE)
694 retval = hdpvr_set_audio(dev, audio->index+1, dev->options.audio_codec);
696 dev->options.audio_input = audio->index;
701 static int vidioc_g_audio(struct file *file, void *private_data,
702 struct v4l2_audio *audio)
704 struct hdpvr_fh *fh = file->private_data;
705 struct hdpvr_device *dev = fh->dev;
707 audio->index = dev->options.audio_input;
708 audio->capability = V4L2_AUDCAP_STEREO;
709 strncpy(audio->name, audio_iname[audio->index], sizeof(audio->name));
710 audio->name[sizeof(audio->name) - 1] = '\0';
714 static const s32 supported_v4l2_ctrls[] = {
720 V4L2_CID_MPEG_AUDIO_ENCODING,
721 V4L2_CID_MPEG_VIDEO_ENCODING,
722 V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
723 V4L2_CID_MPEG_VIDEO_BITRATE,
724 V4L2_CID_MPEG_VIDEO_BITRATE_PEAK,
727 static int fill_queryctrl(struct hdpvr_options *opt, struct v4l2_queryctrl *qc,
733 case V4L2_CID_BRIGHTNESS:
734 return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x86);
735 case V4L2_CID_CONTRAST:
736 return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x80);
737 case V4L2_CID_SATURATION:
738 return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x80);
740 return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x80);
741 case V4L2_CID_SHARPNESS:
742 return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x80);
743 case V4L2_CID_MPEG_AUDIO_ENCODING:
744 return v4l2_ctrl_query_fill(
745 qc, V4L2_MPEG_AUDIO_ENCODING_AAC,
746 ac3 ? V4L2_MPEG_AUDIO_ENCODING_AC3
747 : V4L2_MPEG_AUDIO_ENCODING_AAC,
748 1, V4L2_MPEG_AUDIO_ENCODING_AAC);
749 case V4L2_CID_MPEG_VIDEO_ENCODING:
750 return v4l2_ctrl_query_fill(
751 qc, V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC,
752 V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC, 1,
753 V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC);
755 /* case V4L2_CID_MPEG_VIDEO_? maybe keyframe interval: */
756 /* return v4l2_ctrl_query_fill(qc, 0, 128, 128, 0); */
757 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
758 return v4l2_ctrl_query_fill(
759 qc, V4L2_MPEG_VIDEO_BITRATE_MODE_VBR,
760 V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 1,
761 V4L2_MPEG_VIDEO_BITRATE_MODE_CBR);
763 case V4L2_CID_MPEG_VIDEO_BITRATE:
764 return v4l2_ctrl_query_fill(qc, 1000000, 13500000, 100000,
766 case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
767 err = v4l2_ctrl_query_fill(qc, 1100000, 20200000, 100000,
769 if (!err && opt->bitrate_mode == HDPVR_CONSTANT)
770 qc->flags |= V4L2_CTRL_FLAG_INACTIVE;
777 static int vidioc_queryctrl(struct file *file, void *private_data,
778 struct v4l2_queryctrl *qc)
780 struct hdpvr_fh *fh = file->private_data;
781 struct hdpvr_device *dev = fh->dev;
785 memset(qc, 0, sizeof(*qc));
787 next = !!(id & V4L2_CTRL_FLAG_NEXT_CTRL);
788 qc->id = id & ~V4L2_CTRL_FLAG_NEXT_CTRL;
790 for (i = 0; i < ARRAY_SIZE(supported_v4l2_ctrls); i++) {
792 if (qc->id < supported_v4l2_ctrls[i])
793 qc->id = supported_v4l2_ctrls[i];
798 if (qc->id == supported_v4l2_ctrls[i])
799 return fill_queryctrl(&dev->options, qc,
800 dev->flags & HDPVR_FLAG_AC3_CAP);
802 if (qc->id < supported_v4l2_ctrls[i])
809 static int vidioc_g_ctrl(struct file *file, void *private_data,
810 struct v4l2_control *ctrl)
812 struct hdpvr_fh *fh = file->private_data;
813 struct hdpvr_device *dev = fh->dev;
816 case V4L2_CID_BRIGHTNESS:
817 ctrl->value = dev->options.brightness;
819 case V4L2_CID_CONTRAST:
820 ctrl->value = dev->options.contrast;
822 case V4L2_CID_SATURATION:
823 ctrl->value = dev->options.saturation;
826 ctrl->value = dev->options.hue;
828 case V4L2_CID_SHARPNESS:
829 ctrl->value = dev->options.sharpness;
837 static int vidioc_s_ctrl(struct file *file, void *private_data,
838 struct v4l2_control *ctrl)
840 struct hdpvr_fh *fh = file->private_data;
841 struct hdpvr_device *dev = fh->dev;
845 case V4L2_CID_BRIGHTNESS:
846 retval = hdpvr_config_call(dev, CTRL_BRIGHTNESS, ctrl->value);
848 dev->options.brightness = ctrl->value;
850 case V4L2_CID_CONTRAST:
851 retval = hdpvr_config_call(dev, CTRL_CONTRAST, ctrl->value);
853 dev->options.contrast = ctrl->value;
855 case V4L2_CID_SATURATION:
856 retval = hdpvr_config_call(dev, CTRL_SATURATION, ctrl->value);
858 dev->options.saturation = ctrl->value;
861 retval = hdpvr_config_call(dev, CTRL_HUE, ctrl->value);
863 dev->options.hue = ctrl->value;
865 case V4L2_CID_SHARPNESS:
866 retval = hdpvr_config_call(dev, CTRL_SHARPNESS, ctrl->value);
868 dev->options.sharpness = ctrl->value;
878 static int hdpvr_get_ctrl(struct hdpvr_options *opt,
879 struct v4l2_ext_control *ctrl)
882 case V4L2_CID_MPEG_AUDIO_ENCODING:
883 ctrl->value = opt->audio_codec;
885 case V4L2_CID_MPEG_VIDEO_ENCODING:
886 ctrl->value = V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC;
888 /* case V4L2_CID_MPEG_VIDEO_B_FRAMES: */
889 /* ctrl->value = (opt->gop_mode & 0x2) ? 0 : 128; */
891 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
892 ctrl->value = opt->bitrate_mode == HDPVR_CONSTANT
893 ? V4L2_MPEG_VIDEO_BITRATE_MODE_CBR
894 : V4L2_MPEG_VIDEO_BITRATE_MODE_VBR;
896 case V4L2_CID_MPEG_VIDEO_BITRATE:
897 ctrl->value = opt->bitrate * 100000;
899 case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
900 ctrl->value = opt->peak_bitrate * 100000;
902 case V4L2_CID_MPEG_STREAM_TYPE:
903 ctrl->value = V4L2_MPEG_STREAM_TYPE_MPEG2_TS;
911 static int vidioc_g_ext_ctrls(struct file *file, void *priv,
912 struct v4l2_ext_controls *ctrls)
914 struct hdpvr_fh *fh = file->private_data;
915 struct hdpvr_device *dev = fh->dev;
918 if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
919 for (i = 0; i < ctrls->count; i++) {
920 struct v4l2_ext_control *ctrl = ctrls->controls + i;
922 err = hdpvr_get_ctrl(&dev->options, ctrl);
924 ctrls->error_idx = i;
936 static int hdpvr_try_ctrl(struct v4l2_ext_control *ctrl, int ac3)
941 case V4L2_CID_MPEG_AUDIO_ENCODING:
942 if (ctrl->value == V4L2_MPEG_AUDIO_ENCODING_AAC ||
943 (ac3 && ctrl->value == V4L2_MPEG_AUDIO_ENCODING_AC3))
946 case V4L2_CID_MPEG_VIDEO_ENCODING:
947 if (ctrl->value == V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC)
950 /* case V4L2_CID_MPEG_VIDEO_B_FRAMES: */
951 /* if (ctrl->value == 0 || ctrl->value == 128) */
954 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
955 if (ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR ||
956 ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR)
959 case V4L2_CID_MPEG_VIDEO_BITRATE:
961 uint bitrate = ctrl->value / 100000;
962 if (bitrate >= 10 && bitrate <= 135)
966 case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
968 uint peak_bitrate = ctrl->value / 100000;
969 if (peak_bitrate >= 10 && peak_bitrate <= 202)
973 case V4L2_CID_MPEG_STREAM_TYPE:
974 if (ctrl->value == V4L2_MPEG_STREAM_TYPE_MPEG2_TS)
983 static int vidioc_try_ext_ctrls(struct file *file, void *priv,
984 struct v4l2_ext_controls *ctrls)
986 struct hdpvr_fh *fh = file->private_data;
987 struct hdpvr_device *dev = fh->dev;
990 if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
991 for (i = 0; i < ctrls->count; i++) {
992 struct v4l2_ext_control *ctrl = ctrls->controls + i;
994 err = hdpvr_try_ctrl(ctrl,
995 dev->flags & HDPVR_FLAG_AC3_CAP);
997 ctrls->error_idx = i;
1008 static int hdpvr_set_ctrl(struct hdpvr_device *dev,
1009 struct v4l2_ext_control *ctrl)
1011 struct hdpvr_options *opt = &dev->options;
1015 case V4L2_CID_MPEG_AUDIO_ENCODING:
1016 if (dev->flags & HDPVR_FLAG_AC3_CAP) {
1017 opt->audio_codec = ctrl->value;
1018 ret = hdpvr_set_audio(dev, opt->audio_input,
1022 case V4L2_CID_MPEG_VIDEO_ENCODING:
1024 /* case V4L2_CID_MPEG_VIDEO_B_FRAMES: */
1025 /* if (ctrl->value == 0 && !(opt->gop_mode & 0x2)) { */
1026 /* opt->gop_mode |= 0x2; */
1027 /* hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, */
1028 /* opt->gop_mode); */
1030 /* if (ctrl->value == 128 && opt->gop_mode & 0x2) { */
1031 /* opt->gop_mode &= ~0x2; */
1032 /* hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, */
1033 /* opt->gop_mode); */
1036 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
1037 if (ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR &&
1038 opt->bitrate_mode != HDPVR_CONSTANT) {
1039 opt->bitrate_mode = HDPVR_CONSTANT;
1040 hdpvr_config_call(dev, CTRL_BITRATE_MODE_VALUE,
1043 if (ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR &&
1044 opt->bitrate_mode == HDPVR_CONSTANT) {
1045 opt->bitrate_mode = HDPVR_VARIABLE_AVERAGE;
1046 hdpvr_config_call(dev, CTRL_BITRATE_MODE_VALUE,
1050 case V4L2_CID_MPEG_VIDEO_BITRATE: {
1051 uint bitrate = ctrl->value / 100000;
1053 opt->bitrate = bitrate;
1054 if (bitrate >= opt->peak_bitrate)
1055 opt->peak_bitrate = bitrate+1;
1057 hdpvr_set_bitrate(dev);
1060 case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: {
1061 uint peak_bitrate = ctrl->value / 100000;
1063 if (opt->bitrate_mode == HDPVR_CONSTANT)
1066 if (opt->bitrate < peak_bitrate) {
1067 opt->peak_bitrate = peak_bitrate;
1068 hdpvr_set_bitrate(dev);
1073 case V4L2_CID_MPEG_STREAM_TYPE:
1081 static int vidioc_s_ext_ctrls(struct file *file, void *priv,
1082 struct v4l2_ext_controls *ctrls)
1084 struct hdpvr_fh *fh = file->private_data;
1085 struct hdpvr_device *dev = fh->dev;
1088 if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
1089 for (i = 0; i < ctrls->count; i++) {
1090 struct v4l2_ext_control *ctrl = ctrls->controls + i;
1092 err = hdpvr_try_ctrl(ctrl,
1093 dev->flags & HDPVR_FLAG_AC3_CAP);
1095 ctrls->error_idx = i;
1098 err = hdpvr_set_ctrl(dev, ctrl);
1100 ctrls->error_idx = i;
1111 static int vidioc_enum_fmt_vid_cap(struct file *file, void *private_data,
1112 struct v4l2_fmtdesc *f)
1115 if (f->index != 0 || f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1118 f->flags = V4L2_FMT_FLAG_COMPRESSED;
1119 strncpy(f->description, "MPEG2-TS with AVC/AAC streams", 32);
1120 f->pixelformat = V4L2_PIX_FMT_MPEG;
1125 static int vidioc_g_fmt_vid_cap(struct file *file, void *private_data,
1126 struct v4l2_format *f)
1128 struct hdpvr_fh *fh = file->private_data;
1129 struct hdpvr_device *dev = fh->dev;
1130 struct hdpvr_video_info *vid_info;
1135 vid_info = get_video_info(dev);
1139 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1140 f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
1141 f->fmt.pix.width = vid_info->width;
1142 f->fmt.pix.height = vid_info->height;
1143 f->fmt.pix.sizeimage = dev->bulk_in_size;
1144 f->fmt.pix.colorspace = 0;
1145 f->fmt.pix.bytesperline = 0;
1146 f->fmt.pix.field = V4L2_FIELD_ANY;
1152 static int vidioc_encoder_cmd(struct file *filp, void *priv,
1153 struct v4l2_encoder_cmd *a)
1155 struct hdpvr_fh *fh = filp->private_data;
1156 struct hdpvr_device *dev = fh->dev;
1159 mutex_lock(&dev->io_mutex);
1161 memset(&a->raw, 0, sizeof(a->raw));
1163 case V4L2_ENC_CMD_START:
1165 res = hdpvr_start_streaming(dev);
1167 case V4L2_ENC_CMD_STOP:
1168 res = hdpvr_stop_streaming(dev);
1171 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
1172 "Unsupported encoder cmd %d\n", a->cmd);
1175 mutex_unlock(&dev->io_mutex);
1179 static int vidioc_try_encoder_cmd(struct file *filp, void *priv,
1180 struct v4l2_encoder_cmd *a)
1183 case V4L2_ENC_CMD_START:
1184 case V4L2_ENC_CMD_STOP:
1191 static const struct v4l2_ioctl_ops hdpvr_ioctl_ops = {
1192 .vidioc_querycap = vidioc_querycap,
1193 .vidioc_s_std = vidioc_s_std,
1194 .vidioc_enum_input = vidioc_enum_input,
1195 .vidioc_g_input = vidioc_g_input,
1196 .vidioc_s_input = vidioc_s_input,
1197 .vidioc_enumaudio = vidioc_enumaudio,
1198 .vidioc_g_audio = vidioc_g_audio,
1199 .vidioc_s_audio = vidioc_s_audio,
1200 .vidioc_queryctrl = vidioc_queryctrl,
1201 .vidioc_g_ctrl = vidioc_g_ctrl,
1202 .vidioc_s_ctrl = vidioc_s_ctrl,
1203 .vidioc_g_ext_ctrls = vidioc_g_ext_ctrls,
1204 .vidioc_s_ext_ctrls = vidioc_s_ext_ctrls,
1205 .vidioc_try_ext_ctrls = vidioc_try_ext_ctrls,
1206 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1207 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1208 .vidioc_encoder_cmd = vidioc_encoder_cmd,
1209 .vidioc_try_encoder_cmd = vidioc_try_encoder_cmd,
1212 static void hdpvr_device_release(struct video_device *vdev)
1214 struct hdpvr_device *dev = video_get_drvdata(vdev);
1217 mutex_lock(&dev->io_mutex);
1218 destroy_workqueue(dev->workqueue);
1219 mutex_unlock(&dev->io_mutex);
1221 v4l2_device_unregister(&dev->v4l2_dev);
1223 /* deregister I2C adapter */
1225 mutex_lock(&dev->i2c_mutex);
1226 if (dev->i2c_adapter)
1227 i2c_del_adapter(dev->i2c_adapter);
1228 kfree(dev->i2c_adapter);
1229 dev->i2c_adapter = NULL;
1230 mutex_unlock(&dev->i2c_mutex);
1231 #endif /* CONFIG_I2C */
1233 kfree(dev->usbc_buf);
1237 static const struct video_device hdpvr_video_template = {
1238 /* .type = VFL_TYPE_GRABBER, */
1239 /* .type2 = VID_TYPE_CAPTURE | VID_TYPE_MPEG_ENCODER, */
1240 .fops = &hdpvr_fops,
1241 .release = hdpvr_device_release,
1242 .ioctl_ops = &hdpvr_ioctl_ops,
1244 V4L2_STD_NTSC | V4L2_STD_SECAM | V4L2_STD_PAL_B |
1245 V4L2_STD_PAL_G | V4L2_STD_PAL_H | V4L2_STD_PAL_I |
1246 V4L2_STD_PAL_D | V4L2_STD_PAL_M | V4L2_STD_PAL_N |
1248 .current_norm = V4L2_STD_NTSC | V4L2_STD_PAL_M |
1252 int hdpvr_register_videodev(struct hdpvr_device *dev, struct device *parent,
1255 /* setup and register video device */
1256 dev->video_dev = video_device_alloc();
1257 if (!dev->video_dev) {
1258 v4l2_err(&dev->v4l2_dev, "video_device_alloc() failed\n");
1262 *(dev->video_dev) = hdpvr_video_template;
1263 strcpy(dev->video_dev->name, "Hauppauge HD PVR");
1264 dev->video_dev->parent = parent;
1265 video_set_drvdata(dev->video_dev, dev);
1267 if (video_register_device(dev->video_dev, VFL_TYPE_GRABBER, devnum)) {
1268 v4l2_err(&dev->v4l2_dev, "video_device registration failed\n");