Lines Matching refs:stream
129 static void uvc_fixup_video_ctrl(struct uvc_streaming *stream,
151 if (usb_match_one_id(stream->dev->intf, &elgato_cam_link_4k) &&
155 /* uvc_dbg(stream->dev, VIDEO,
163 for (i = 0; i < stream->nformats; ++i) {
164 if (stream->format[i].index == ctrl->bFormatIndex) {
165 format = &stream->format[i];
185 stream->dev->uvc_version < 0x0110))
198 stream->dev->quirks & UVC_QUIRK_FIX_BANDWIDTH &&
199 stream->intf->num_altsetting > 1) {
216 if (stream->dev->udev->speed == USB_SPEED_HIGH)
233 static size_t uvc_video_ctrl_size(struct uvc_streaming *stream)
239 if (stream->dev->uvc_version < 0x0110)
241 else if (stream->dev->uvc_version < 0x0150)
247 static int uvc_get_video_ctrl(struct uvc_streaming *stream,
250 u16 size = uvc_video_ctrl_size(stream);
254 if ((stream->dev->quirks & UVC_QUIRK_PROBE_DEF) &&
262 ret = __uvc_query_ctrl(stream->dev, query, 0, stream->intfnum,
271 uvc_warn_once(stream->dev, UVC_WARN_MINMAX, "UVC non "
283 uvc_warn_once(stream->dev, UVC_WARN_PROBE_DEF, "UVC non "
315 ctrl->dwClockFrequency = stream->dev->clock_frequency;
326 uvc_fixup_video_ctrl(stream, ctrl);
334 static int uvc_set_video_ctrl(struct uvc_streaming *stream,
337 u16 size = uvc_video_ctrl_size(stream);
365 ret = __uvc_query_ctrl(stream->dev, UVC_SET_CUR, 0, stream->intfnum,
379 int uvc_probe_video(struct uvc_streaming *stream,
394 ret = uvc_set_video_ctrl(stream, probe, 1);
399 if (!(stream->dev->quirks & UVC_QUIRK_PROBE_MINMAX)) {
400 ret = uvc_get_video_ctrl(stream, &probe_min, 1, UVC_GET_MIN);
403 ret = uvc_get_video_ctrl(stream, &probe_max, 1, UVC_GET_MAX);
411 ret = uvc_set_video_ctrl(stream, probe, 1);
414 ret = uvc_get_video_ctrl(stream, probe, 1, UVC_GET_CUR);
418 if (stream->intf->num_altsetting == 1)
422 if (bandwidth <= stream->maxpsize)
425 if (stream->dev->quirks & UVC_QUIRK_PROBE_MINMAX) {
441 static int uvc_commit_video(struct uvc_streaming *stream,
444 return uvc_set_video_ctrl(stream, probe, 0);
460 uvc_video_clock_decode(struct uvc_streaming *stream, struct uvc_buffer *buf,
512 if (dev_sof == stream->clock.last_sof)
515 stream->clock.last_sof = dev_sof;
517 host_sof = usb_get_current_frame_number(stream->dev->udev);
539 if (stream->clock.sof_offset == (u16)-1) {
542 stream->clock.sof_offset = delta_sof;
544 stream->clock.sof_offset = 0;
547 dev_sof = (dev_sof + stream->clock.sof_offset) & 2047;
549 spin_lock_irqsave(&stream->clock.lock, flags);
551 sample = &stream->clock.samples[stream->clock.head];
558 stream->clock.head = (stream->clock.head + 1) % stream->clock.size;
560 if (stream->clock.count < stream->clock.size)
561 stream->clock.count++;
563 spin_unlock_irqrestore(&stream->clock.lock, flags);
566 static void uvc_video_clock_reset(struct uvc_streaming *stream)
568 struct uvc_clock *clock = &stream->clock;
576 static int uvc_video_clock_init(struct uvc_streaming *stream)
578 struct uvc_clock *clock = &stream->clock;
588 uvc_video_clock_reset(stream);
593 static void uvc_video_clock_cleanup(struct uvc_streaming *stream)
595 kfree(stream->clock.samples);
596 stream->clock.samples = NULL;
687 void uvc_video_clock_update(struct uvc_streaming *stream,
691 struct uvc_clock *clock = &stream->clock;
742 stream->dev->name, buf->pts,
777 stream->dev->name,
794 static void uvc_video_stats_decode(struct uvc_streaming *stream,
804 if (stream->stats.stream.nb_frames == 0 &&
805 stream->stats.frame.nb_packets == 0)
806 stream->stats.stream.start_ts = ktime_get();
829 stream->stats.frame.nb_invalid++;
843 if (has_pts && stream->stats.frame.nb_pts) {
844 if (stream->stats.frame.pts != pts) {
845 stream->stats.frame.nb_pts_diffs++;
846 stream->stats.frame.last_pts_diff =
847 stream->stats.frame.nb_packets;
852 stream->stats.frame.nb_pts++;
853 stream->stats.frame.pts = pts;
859 if (stream->stats.frame.size == 0) {
861 stream->stats.frame.has_initial_pts = has_pts;
863 stream->stats.frame.has_early_pts = true;
867 if (has_scr && stream->stats.frame.nb_scr) {
868 if (stream->stats.frame.scr_stc != scr_stc)
869 stream->stats.frame.nb_scr_diffs++;
874 if (stream->stats.stream.nb_frames > 0 ||
875 stream->stats.frame.nb_scr > 0)
876 stream->stats.stream.scr_sof_count +=
877 (scr_sof - stream->stats.stream.scr_sof) % 2048;
878 stream->stats.stream.scr_sof = scr_sof;
880 stream->stats.frame.nb_scr++;
881 stream->stats.frame.scr_stc = scr_stc;
882 stream->stats.frame.scr_sof = scr_sof;
884 if (scr_sof < stream->stats.stream.min_sof)
885 stream->stats.stream.min_sof = scr_sof;
886 if (scr_sof > stream->stats.stream.max_sof)
887 stream->stats.stream.max_sof = scr_sof;
891 if (stream->stats.frame.size == 0 && len > header_size)
892 stream->stats.frame.first_data = stream->stats.frame.nb_packets;
895 stream->stats.frame.size += len - header_size;
898 stream->stats.frame.nb_packets++;
900 stream->stats.frame.nb_empty++;
903 stream->stats.frame.nb_errors++;
906 static void uvc_video_stats_update(struct uvc_streaming *stream)
908 struct uvc_stats_frame *frame = &stream->stats.frame;
913 stream->sequence, frame->first_data,
921 stream->stats.stream.nb_frames++;
922 stream->stats.stream.nb_packets += stream->stats.frame.nb_packets;
923 stream->stats.stream.nb_empty += stream->stats.frame.nb_empty;
924 stream->stats.stream.nb_errors += stream->stats.frame.nb_errors;
925 stream->stats.stream.nb_invalid += stream->stats.frame.nb_invalid;
928 stream->stats.stream.nb_pts_early++;
930 stream->stats.stream.nb_pts_initial++;
932 stream->stats.stream.nb_pts_constant++;
934 stream->stats.stream.nb_scr_count_ok++;
936 stream->stats.stream.nb_scr_diffs_ok++;
938 memset(&stream->stats.frame, 0, sizeof(stream->stats.frame));
941 size_t uvc_video_stats_dump(struct uvc_streaming *stream, char *buf,
951 duration = ktime_ms_delta(stream->stats.stream.stop_ts,
952 stream->stats.stream.start_ts);
954 scr_sof_freq = stream->stats.stream.scr_sof_count * 1000
962 stream->stats.stream.nb_frames,
963 stream->stats.stream.nb_packets,
964 stream->stats.stream.nb_empty,
965 stream->stats.stream.nb_errors,
966 stream->stats.stream.nb_invalid);
969 stream->stats.stream.nb_pts_early,
970 stream->stats.stream.nb_pts_initial,
971 stream->stats.stream.nb_pts_constant);
974 stream->stats.stream.nb_scr_count_ok,
975 stream->stats.stream.nb_scr_diffs_ok);
978 stream->stats.stream.min_sof,
979 stream->stats.stream.max_sof,
985 static void uvc_video_stats_start(struct uvc_streaming *stream)
987 memset(&stream->stats, 0, sizeof(stream->stats));
988 stream->stats.stream.min_sof = 2048;
991 static void uvc_video_stats_stop(struct uvc_streaming *stream)
993 stream->stats.stream.stop_ts = ktime_get();
1035 static int uvc_video_decode_start(struct uvc_streaming *stream,
1046 stream->stats.frame.nb_invalid++;
1055 if (stream->last_fid != fid) {
1056 stream->sequence++;
1057 if (stream->sequence)
1058 uvc_video_stats_update(stream);
1061 uvc_video_clock_decode(stream, buf, data, len);
1062 uvc_video_stats_decode(stream, data, len);
1068 stream->last_fid = fid;
1079 /* Synchronize to the input stream by waiting for the FID bit to be
1081 * stream->last_fid is initialized to -1, so the first isochronous
1084 * If the device doesn't toggle the FID bit, invert stream->last_fid
1088 if (fid == stream->last_fid) {
1091 if ((stream->dev->quirks & UVC_QUIRK_STREAM_NO_FID) &&
1093 stream->last_fid ^= UVC_STREAM_FID;
1098 buf->buf.sequence = stream->sequence;
1112 * stream->last_fid is initialized to -1, so the first isochronous
1120 if (fid != stream->last_fid && buf->bytesused != 0) {
1127 stream->last_fid = fid;
1191 static void uvc_video_decode_end(struct uvc_streaming *stream,
1200 if (stream->dev->quirks & UVC_QUIRK_STREAM_NO_FID)
1201 stream->last_fid ^= UVC_STREAM_FID;
1216 static int uvc_video_encode_header(struct uvc_streaming *stream,
1221 | (stream->last_fid & UVC_STREAM_FID);
1225 static int uvc_video_encode_data(struct uvc_streaming *stream,
1228 struct uvc_video_queue *queue = &stream->queue;
1235 nbytes = min(stream->bulk.max_payload_size - stream->bulk.payload_size,
1259 static void uvc_video_decode_meta(struct uvc_streaming *stream,
1293 if (stream->meta.format == V4L2_META_FMT_UVC)
1297 !memcmp(scr, stream->clock.last_scr, 6)))
1303 sof = usb_get_current_frame_number(stream->dev->udev);
1309 memcpy(stream->clock.last_scr, scr, 6);
1332 static void uvc_video_validate_buffer(const struct uvc_streaming *stream,
1335 if (stream->ctrl.dwMaxVideoFrameSize != buf->bytesused &&
1336 !(stream->cur_format->flags & UVC_FMT_FLAG_COMPRESSED))
1344 static void uvc_video_next_buffers(struct uvc_streaming *stream,
1347 uvc_video_validate_buffer(stream, *video_buf);
1360 *meta_buf = uvc_queue_next_buffer(&stream->meta.queue,
1363 *video_buf = uvc_queue_next_buffer(&stream->queue, *video_buf);
1370 struct uvc_streaming *stream = uvc_urb->stream;
1387 ret = uvc_video_decode_start(stream, buf, mem,
1390 uvc_video_next_buffers(stream, &buf, &meta_buf);
1396 uvc_video_decode_meta(stream, meta_buf, mem, ret);
1403 uvc_video_decode_end(stream, buf, mem,
1407 uvc_video_next_buffers(stream, &buf, &meta_buf);
1415 struct uvc_streaming *stream = uvc_urb->stream;
1423 if (urb->actual_length == 0 && stream->bulk.header_size == 0)
1428 stream->bulk.payload_size += len;
1433 if (stream->bulk.header_size == 0 && !stream->bulk.skip_payload) {
1435 ret = uvc_video_decode_start(stream, buf, mem, len);
1437 uvc_video_next_buffers(stream, &buf, &meta_buf);
1442 stream->bulk.skip_payload = 1;
1444 memcpy(stream->bulk.header, mem, ret);
1445 stream->bulk.header_size = ret;
1447 uvc_video_decode_meta(stream, meta_buf, mem, ret);
1460 if (!stream->bulk.skip_payload && buf != NULL)
1467 stream->bulk.payload_size >= stream->bulk.max_payload_size) {
1468 if (!stream->bulk.skip_payload && buf != NULL) {
1469 uvc_video_decode_end(stream, buf, stream->bulk.header,
1470 stream->bulk.payload_size);
1472 uvc_video_next_buffers(stream, &buf, &meta_buf);
1475 stream->bulk.header_size = 0;
1476 stream->bulk.skip_payload = 0;
1477 stream->bulk.payload_size = 0;
1485 struct uvc_streaming *stream = uvc_urb->stream;
1488 int len = stream->urb_size, ret;
1496 if (stream->bulk.header_size == 0) {
1497 ret = uvc_video_encode_header(stream, buf, mem, len);
1498 stream->bulk.header_size = ret;
1499 stream->bulk.payload_size += ret;
1505 ret = uvc_video_encode_data(stream, buf, mem, len);
1507 stream->bulk.payload_size += ret;
1510 if (buf->bytesused == stream->queue.buf_used ||
1511 stream->bulk.payload_size == stream->bulk.max_payload_size) {
1512 if (buf->bytesused == stream->queue.buf_used) {
1513 stream->queue.buf_used = 0;
1515 buf->buf.sequence = ++stream->sequence;
1516 uvc_queue_next_buffer(&stream->queue, buf);
1517 stream->last_fid ^= UVC_STREAM_FID;
1520 stream->bulk.header_size = 0;
1521 stream->bulk.payload_size = 0;
1524 urb->transfer_buffer_length = stream->urb_size - len;
1530 struct uvc_streaming *stream = uvc_urb->stream;
1531 struct uvc_video_queue *queue = &stream->queue;
1532 struct uvc_video_queue *qmeta = &stream->meta.queue;
1533 struct vb2_queue *vb2_qmeta = stream->meta.vdev.queue;
1548 if (stream->frozen)
1576 stream->decode(uvc_urb, buf, buf_meta);
1588 queue_work(stream->async_wq, &uvc_urb->work);
1594 static void uvc_free_urb_buffers(struct uvc_streaming *stream)
1598 for_each_uvc_urb(uvc_urb, stream) {
1603 usb_free_coherent(stream->dev->udev, stream->urb_size,
1611 stream->urb_size = 0;
1625 static int uvc_alloc_urb_buffers(struct uvc_streaming *stream,
1632 if (stream->urb_size)
1633 return stream->urb_size / psize;
1645 struct uvc_urb *uvc_urb = &stream->uvc_urb[i];
1647 stream->urb_size = psize * npackets;
1650 stream->dev->udev, stream->urb_size,
1654 kmalloc(stream->urb_size, gfp_flags | __GFP_NOWARN);
1657 uvc_free_urb_buffers(stream);
1661 uvc_urb->stream = stream;
1680 static void uvc_video_stop_transfer(struct uvc_streaming *stream,
1685 uvc_video_stats_stop(stream);
1692 for_each_uvc_urb(uvc_urb, stream)
1695 flush_workqueue(stream->async_wq);
1697 for_each_uvc_urb(uvc_urb, stream) {
1703 uvc_free_urb_buffers(stream);
1736 static int uvc_init_video_isoc(struct uvc_streaming *stream,
1745 psize = uvc_endpoint_max_bpi(stream->dev->udev, ep);
1746 size = stream->ctrl.dwMaxVideoFrameSize;
1748 npackets = uvc_alloc_urb_buffers(stream, size, psize, gfp_flags);
1754 for_each_uvc_urb(uvc_urb, stream) {
1757 uvc_video_stop_transfer(stream, 1);
1761 urb->dev = stream->dev->udev;
1763 urb->pipe = usb_rcvisocpipe(stream->dev->udev,
1792 static int uvc_init_video_bulk(struct uvc_streaming *stream,
1802 size = stream->ctrl.dwMaxPayloadTransferSize;
1803 stream->bulk.max_payload_size = size;
1805 npackets = uvc_alloc_urb_buffers(stream, size, psize, gfp_flags);
1812 pipe = usb_rcvbulkpipe(stream->dev->udev,
1815 pipe = usb_sndbulkpipe(stream->dev->udev,
1818 if (stream->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1821 for_each_uvc_urb(uvc_urb, stream) {
1824 uvc_video_stop_transfer(stream, 1);
1828 usb_fill_bulk_urb(urb, stream->dev->udev, pipe, uvc_urb->buffer,
1844 static int uvc_video_start_transfer(struct uvc_streaming *stream,
1847 struct usb_interface *intf = stream->intf;
1853 stream->sequence = -1;
1854 stream->last_fid = -1;
1855 stream->bulk.header_size = 0;
1856 stream->bulk.skip_payload = 0;
1857 stream->bulk.payload_size = 0;
1859 uvc_video_stats_start(stream);
1866 int intfnum = stream->intfnum;
1869 bandwidth = stream->ctrl.dwMaxPayloadTransferSize;
1886 stream->header.bEndpointAddress);
1891 psize = uvc_endpoint_max_bpi(stream->dev->udev, ep);
1913 if (stream->dev->quirks & UVC_QUIRK_WAKE_AUTOSUSPEND) {
1914 usb_set_interface(stream->dev->udev, intfnum,
1916 usb_set_interface(stream->dev->udev, intfnum, 0);
1919 ret = usb_set_interface(stream->dev->udev, intfnum, altsetting);
1923 ret = uvc_init_video_isoc(stream, best_ep, gfp_flags);
1927 stream->header.bEndpointAddress);
1935 ret = uvc_init_video_bulk(stream, ep, gfp_flags);
1942 for_each_uvc_urb(uvc_urb, stream) {
1947 uvc_video_stop_transfer(stream, 1);
1955 if (stream->dev->quirks & UVC_QUIRK_RESTORE_CTRLS_ON_INIT)
1956 uvc_ctrl_restore_values(stream->dev);
1972 int uvc_video_suspend(struct uvc_streaming *stream)
1974 if (!uvc_queue_streaming(&stream->queue))
1977 stream->frozen = 1;
1978 uvc_video_stop_transfer(stream, 0);
1979 usb_set_interface(stream->dev->udev, stream->intfnum, 0);
1991 int uvc_video_resume(struct uvc_streaming *stream, int reset)
2001 usb_set_interface(stream->dev->udev, stream->intfnum, 0);
2003 stream->frozen = 0;
2005 uvc_video_clock_reset(stream);
2007 if (!uvc_queue_streaming(&stream->queue))
2010 ret = uvc_commit_video(stream, &stream->ctrl);
2014 return uvc_video_start_transfer(stream, GFP_NOIO);
2031 int uvc_video_init(struct uvc_streaming *stream)
2033 struct uvc_streaming_control *probe = &stream->ctrl;
2040 if (stream->nformats == 0) {
2045 atomic_set(&stream->active, 0);
2052 usb_set_interface(stream->dev->udev, stream->intfnum, 0);
2059 if (uvc_get_video_ctrl(stream, probe, 1, UVC_GET_DEF) == 0)
2060 uvc_set_video_ctrl(stream, probe, 1);
2067 ret = uvc_get_video_ctrl(stream, probe, 1, UVC_GET_CUR);
2074 for (i = stream->nformats; i > 0; --i) {
2075 format = &stream->format[i-1];
2100 stream->def_format = format;
2101 stream->cur_format = format;
2102 stream->cur_frame = frame;
2105 if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2106 if (stream->dev->quirks & UVC_QUIRK_BUILTIN_ISIGHT)
2107 stream->decode = uvc_video_decode_isight;
2108 else if (stream->intf->num_altsetting > 1)
2109 stream->decode = uvc_video_decode_isoc;
2111 stream->decode = uvc_video_decode_bulk;
2113 if (stream->intf->num_altsetting == 1)
2114 stream->decode = uvc_video_encode_bulk;
2123 for_each_uvc_urb(uvc_urb, stream)
2129 int uvc_video_start_streaming(struct uvc_streaming *stream)
2133 ret = uvc_video_clock_init(stream);
2138 ret = uvc_commit_video(stream, &stream->ctrl);
2142 ret = uvc_video_start_transfer(stream, GFP_KERNEL);
2149 usb_set_interface(stream->dev->udev, stream->intfnum, 0);
2151 uvc_video_clock_cleanup(stream);
2156 void uvc_video_stop_streaming(struct uvc_streaming *stream)
2158 uvc_video_stop_transfer(stream, 1);
2160 if (stream->intf->num_altsetting > 1) {
2161 usb_set_interface(stream->dev->udev, stream->intfnum, 0);
2164 * when the video stream is stopped. Windows sends a
2168 unsigned int epnum = stream->header.bEndpointAddress
2170 unsigned int dir = stream->header.bEndpointAddress
2174 pipe = usb_sndbulkpipe(stream->dev->udev, epnum) | dir;
2175 usb_clear_halt(stream->dev->udev, pipe);
2178 uvc_video_clock_cleanup(stream);