Lines Matching refs:stream
129 static void uvc_fixup_video_ctrl(struct uvc_streaming *stream, in uvc_fixup_video_ctrl() argument
151 if (usb_match_one_id(stream->dev->intf, &elgato_cam_link_4k) && in uvc_fixup_video_ctrl()
163 for (i = 0; i < stream->nformats; ++i) { in uvc_fixup_video_ctrl()
164 if (stream->format[i].index == ctrl->bFormatIndex) { in uvc_fixup_video_ctrl()
165 format = &stream->format[i]; in uvc_fixup_video_ctrl()
185 stream->dev->uvc_version < 0x0110)) in uvc_fixup_video_ctrl()
198 stream->dev->quirks & UVC_QUIRK_FIX_BANDWIDTH && in uvc_fixup_video_ctrl()
199 stream->intf->num_altsetting > 1) { in uvc_fixup_video_ctrl()
216 if (stream->dev->udev->speed == USB_SPEED_HIGH) in uvc_fixup_video_ctrl()
233 static size_t uvc_video_ctrl_size(struct uvc_streaming *stream) in uvc_video_ctrl_size() argument
239 if (stream->dev->uvc_version < 0x0110) in uvc_video_ctrl_size()
241 else if (stream->dev->uvc_version < 0x0150) in uvc_video_ctrl_size()
247 static int uvc_get_video_ctrl(struct uvc_streaming *stream, in uvc_get_video_ctrl() argument
250 u16 size = uvc_video_ctrl_size(stream); in uvc_get_video_ctrl()
254 if ((stream->dev->quirks & UVC_QUIRK_PROBE_DEF) && in uvc_get_video_ctrl()
262 ret = __uvc_query_ctrl(stream->dev, query, 0, stream->intfnum, in uvc_get_video_ctrl()
271 uvc_warn_once(stream->dev, UVC_WARN_MINMAX, "UVC non " in uvc_get_video_ctrl()
283 uvc_warn_once(stream->dev, UVC_WARN_PROBE_DEF, "UVC non " in uvc_get_video_ctrl()
315 ctrl->dwClockFrequency = stream->dev->clock_frequency; in uvc_get_video_ctrl()
326 uvc_fixup_video_ctrl(stream, ctrl); in uvc_get_video_ctrl()
334 static int uvc_set_video_ctrl(struct uvc_streaming *stream, in uvc_set_video_ctrl() argument
337 u16 size = uvc_video_ctrl_size(stream); in uvc_set_video_ctrl()
365 ret = __uvc_query_ctrl(stream->dev, UVC_SET_CUR, 0, stream->intfnum, in uvc_set_video_ctrl()
379 int uvc_probe_video(struct uvc_streaming *stream, in uvc_probe_video() argument
394 ret = uvc_set_video_ctrl(stream, probe, 1); in uvc_probe_video()
399 if (!(stream->dev->quirks & UVC_QUIRK_PROBE_MINMAX)) { in uvc_probe_video()
400 ret = uvc_get_video_ctrl(stream, &probe_min, 1, UVC_GET_MIN); in uvc_probe_video()
403 ret = uvc_get_video_ctrl(stream, &probe_max, 1, UVC_GET_MAX); in uvc_probe_video()
411 ret = uvc_set_video_ctrl(stream, probe, 1); in uvc_probe_video()
414 ret = uvc_get_video_ctrl(stream, probe, 1, UVC_GET_CUR); in uvc_probe_video()
418 if (stream->intf->num_altsetting == 1) in uvc_probe_video()
422 if (bandwidth <= stream->maxpsize) in uvc_probe_video()
425 if (stream->dev->quirks & UVC_QUIRK_PROBE_MINMAX) { in uvc_probe_video()
441 static int uvc_commit_video(struct uvc_streaming *stream, in uvc_commit_video() argument
444 return uvc_set_video_ctrl(stream, probe, 0); in uvc_commit_video()
460 uvc_video_clock_decode(struct uvc_streaming *stream, struct uvc_buffer *buf, in uvc_video_clock_decode() argument
512 if (dev_sof == stream->clock.last_sof) in uvc_video_clock_decode()
515 stream->clock.last_sof = dev_sof; in uvc_video_clock_decode()
517 host_sof = usb_get_current_frame_number(stream->dev->udev); in uvc_video_clock_decode()
539 if (stream->clock.sof_offset == (u16)-1) { in uvc_video_clock_decode()
542 stream->clock.sof_offset = delta_sof; in uvc_video_clock_decode()
544 stream->clock.sof_offset = 0; in uvc_video_clock_decode()
547 dev_sof = (dev_sof + stream->clock.sof_offset) & 2047; in uvc_video_clock_decode()
549 spin_lock_irqsave(&stream->clock.lock, flags); in uvc_video_clock_decode()
551 sample = &stream->clock.samples[stream->clock.head]; in uvc_video_clock_decode()
558 stream->clock.head = (stream->clock.head + 1) % stream->clock.size; in uvc_video_clock_decode()
560 if (stream->clock.count < stream->clock.size) in uvc_video_clock_decode()
561 stream->clock.count++; in uvc_video_clock_decode()
563 spin_unlock_irqrestore(&stream->clock.lock, flags); in uvc_video_clock_decode()
566 static void uvc_video_clock_reset(struct uvc_streaming *stream) in uvc_video_clock_reset() argument
568 struct uvc_clock *clock = &stream->clock; in uvc_video_clock_reset()
576 static int uvc_video_clock_init(struct uvc_streaming *stream) in uvc_video_clock_init() argument
578 struct uvc_clock *clock = &stream->clock; in uvc_video_clock_init()
588 uvc_video_clock_reset(stream); in uvc_video_clock_init()
593 static void uvc_video_clock_cleanup(struct uvc_streaming *stream) in uvc_video_clock_cleanup() argument
595 kfree(stream->clock.samples); in uvc_video_clock_cleanup()
596 stream->clock.samples = NULL; in uvc_video_clock_cleanup()
687 void uvc_video_clock_update(struct uvc_streaming *stream, in uvc_video_clock_update() argument
691 struct uvc_clock *clock = &stream->clock; in uvc_video_clock_update()
742 stream->dev->name, buf->pts, in uvc_video_clock_update()
777 stream->dev->name, in uvc_video_clock_update()
794 static void uvc_video_stats_decode(struct uvc_streaming *stream, in uvc_video_stats_decode() argument
804 if (stream->stats.stream.nb_frames == 0 && in uvc_video_stats_decode()
805 stream->stats.frame.nb_packets == 0) in uvc_video_stats_decode()
806 stream->stats.stream.start_ts = ktime_get(); in uvc_video_stats_decode()
829 stream->stats.frame.nb_invalid++; in uvc_video_stats_decode()
843 if (has_pts && stream->stats.frame.nb_pts) { in uvc_video_stats_decode()
844 if (stream->stats.frame.pts != pts) { in uvc_video_stats_decode()
845 stream->stats.frame.nb_pts_diffs++; in uvc_video_stats_decode()
846 stream->stats.frame.last_pts_diff = in uvc_video_stats_decode()
847 stream->stats.frame.nb_packets; in uvc_video_stats_decode()
852 stream->stats.frame.nb_pts++; in uvc_video_stats_decode()
853 stream->stats.frame.pts = pts; in uvc_video_stats_decode()
859 if (stream->stats.frame.size == 0) { in uvc_video_stats_decode()
861 stream->stats.frame.has_initial_pts = has_pts; in uvc_video_stats_decode()
863 stream->stats.frame.has_early_pts = true; in uvc_video_stats_decode()
867 if (has_scr && stream->stats.frame.nb_scr) { in uvc_video_stats_decode()
868 if (stream->stats.frame.scr_stc != scr_stc) in uvc_video_stats_decode()
869 stream->stats.frame.nb_scr_diffs++; in uvc_video_stats_decode()
874 if (stream->stats.stream.nb_frames > 0 || in uvc_video_stats_decode()
875 stream->stats.frame.nb_scr > 0) in uvc_video_stats_decode()
876 stream->stats.stream.scr_sof_count += in uvc_video_stats_decode()
877 (scr_sof - stream->stats.stream.scr_sof) % 2048; in uvc_video_stats_decode()
878 stream->stats.stream.scr_sof = scr_sof; in uvc_video_stats_decode()
880 stream->stats.frame.nb_scr++; in uvc_video_stats_decode()
881 stream->stats.frame.scr_stc = scr_stc; in uvc_video_stats_decode()
882 stream->stats.frame.scr_sof = scr_sof; in uvc_video_stats_decode()
884 if (scr_sof < stream->stats.stream.min_sof) in uvc_video_stats_decode()
885 stream->stats.stream.min_sof = scr_sof; in uvc_video_stats_decode()
886 if (scr_sof > stream->stats.stream.max_sof) in uvc_video_stats_decode()
887 stream->stats.stream.max_sof = scr_sof; in uvc_video_stats_decode()
891 if (stream->stats.frame.size == 0 && len > header_size) in uvc_video_stats_decode()
892 stream->stats.frame.first_data = stream->stats.frame.nb_packets; in uvc_video_stats_decode()
895 stream->stats.frame.size += len - header_size; in uvc_video_stats_decode()
898 stream->stats.frame.nb_packets++; in uvc_video_stats_decode()
900 stream->stats.frame.nb_empty++; in uvc_video_stats_decode()
903 stream->stats.frame.nb_errors++; in uvc_video_stats_decode()
906 static void uvc_video_stats_update(struct uvc_streaming *stream) in uvc_video_stats_update() argument
908 struct uvc_stats_frame *frame = &stream->stats.frame; in uvc_video_stats_update()
913 stream->sequence, frame->first_data, in uvc_video_stats_update()
921 stream->stats.stream.nb_frames++; in uvc_video_stats_update()
922 stream->stats.stream.nb_packets += stream->stats.frame.nb_packets; in uvc_video_stats_update()
923 stream->stats.stream.nb_empty += stream->stats.frame.nb_empty; in uvc_video_stats_update()
924 stream->stats.stream.nb_errors += stream->stats.frame.nb_errors; in uvc_video_stats_update()
925 stream->stats.stream.nb_invalid += stream->stats.frame.nb_invalid; in uvc_video_stats_update()
928 stream->stats.stream.nb_pts_early++; in uvc_video_stats_update()
930 stream->stats.stream.nb_pts_initial++; in uvc_video_stats_update()
932 stream->stats.stream.nb_pts_constant++; in uvc_video_stats_update()
934 stream->stats.stream.nb_scr_count_ok++; in uvc_video_stats_update()
936 stream->stats.stream.nb_scr_diffs_ok++; in uvc_video_stats_update()
938 memset(&stream->stats.frame, 0, sizeof(stream->stats.frame)); in uvc_video_stats_update()
941 size_t uvc_video_stats_dump(struct uvc_streaming *stream, char *buf, in uvc_video_stats_dump() argument
951 duration = ktime_ms_delta(stream->stats.stream.stop_ts, in uvc_video_stats_dump()
952 stream->stats.stream.start_ts); in uvc_video_stats_dump()
954 scr_sof_freq = stream->stats.stream.scr_sof_count * 1000 in uvc_video_stats_dump()
962 stream->stats.stream.nb_frames, in uvc_video_stats_dump()
963 stream->stats.stream.nb_packets, in uvc_video_stats_dump()
964 stream->stats.stream.nb_empty, in uvc_video_stats_dump()
965 stream->stats.stream.nb_errors, in uvc_video_stats_dump()
966 stream->stats.stream.nb_invalid); in uvc_video_stats_dump()
969 stream->stats.stream.nb_pts_early, in uvc_video_stats_dump()
970 stream->stats.stream.nb_pts_initial, in uvc_video_stats_dump()
971 stream->stats.stream.nb_pts_constant); in uvc_video_stats_dump()
974 stream->stats.stream.nb_scr_count_ok, in uvc_video_stats_dump()
975 stream->stats.stream.nb_scr_diffs_ok); in uvc_video_stats_dump()
978 stream->stats.stream.min_sof, in uvc_video_stats_dump()
979 stream->stats.stream.max_sof, in uvc_video_stats_dump()
985 static void uvc_video_stats_start(struct uvc_streaming *stream) in uvc_video_stats_start() argument
987 memset(&stream->stats, 0, sizeof(stream->stats)); in uvc_video_stats_start()
988 stream->stats.stream.min_sof = 2048; in uvc_video_stats_start()
991 static void uvc_video_stats_stop(struct uvc_streaming *stream) in uvc_video_stats_stop() argument
993 stream->stats.stream.stop_ts = ktime_get(); in uvc_video_stats_stop()
1035 static int uvc_video_decode_start(struct uvc_streaming *stream, in uvc_video_decode_start() argument
1046 stream->stats.frame.nb_invalid++; in uvc_video_decode_start()
1055 if (stream->last_fid != fid) { in uvc_video_decode_start()
1056 stream->sequence++; in uvc_video_decode_start()
1057 if (stream->sequence) in uvc_video_decode_start()
1058 uvc_video_stats_update(stream); in uvc_video_decode_start()
1061 uvc_video_clock_decode(stream, buf, data, len); in uvc_video_decode_start()
1062 uvc_video_stats_decode(stream, data, len); in uvc_video_decode_start()
1068 stream->last_fid = fid; in uvc_video_decode_start()
1088 if (fid == stream->last_fid) { in uvc_video_decode_start()
1091 if ((stream->dev->quirks & UVC_QUIRK_STREAM_NO_FID) && in uvc_video_decode_start()
1093 stream->last_fid ^= UVC_STREAM_FID; in uvc_video_decode_start()
1098 buf->buf.sequence = stream->sequence; in uvc_video_decode_start()
1120 if (fid != stream->last_fid && buf->bytesused != 0) { in uvc_video_decode_start()
1127 stream->last_fid = fid; in uvc_video_decode_start()
1191 static void uvc_video_decode_end(struct uvc_streaming *stream, in uvc_video_decode_end() argument
1200 if (stream->dev->quirks & UVC_QUIRK_STREAM_NO_FID) in uvc_video_decode_end()
1201 stream->last_fid ^= UVC_STREAM_FID; in uvc_video_decode_end()
1216 static int uvc_video_encode_header(struct uvc_streaming *stream, in uvc_video_encode_header() argument
1221 | (stream->last_fid & UVC_STREAM_FID); in uvc_video_encode_header()
1225 static int uvc_video_encode_data(struct uvc_streaming *stream, in uvc_video_encode_data() argument
1228 struct uvc_video_queue *queue = &stream->queue; in uvc_video_encode_data()
1235 nbytes = min(stream->bulk.max_payload_size - stream->bulk.payload_size, in uvc_video_encode_data()
1259 static void uvc_video_decode_meta(struct uvc_streaming *stream, in uvc_video_decode_meta() argument
1293 if (stream->meta.format == V4L2_META_FMT_UVC) in uvc_video_decode_meta()
1297 !memcmp(scr, stream->clock.last_scr, 6))) in uvc_video_decode_meta()
1303 sof = usb_get_current_frame_number(stream->dev->udev); in uvc_video_decode_meta()
1309 memcpy(stream->clock.last_scr, scr, 6); in uvc_video_decode_meta()
1330 static void uvc_video_validate_buffer(const struct uvc_streaming *stream, in uvc_video_validate_buffer() argument
1333 if (stream->ctrl.dwMaxVideoFrameSize != buf->bytesused && in uvc_video_validate_buffer()
1334 !(stream->cur_format->flags & UVC_FMT_FLAG_COMPRESSED)) in uvc_video_validate_buffer()
1342 static void uvc_video_next_buffers(struct uvc_streaming *stream, in uvc_video_next_buffers() argument
1345 uvc_video_validate_buffer(stream, *video_buf); in uvc_video_next_buffers()
1358 *meta_buf = uvc_queue_next_buffer(&stream->meta.queue, in uvc_video_next_buffers()
1361 *video_buf = uvc_queue_next_buffer(&stream->queue, *video_buf); in uvc_video_next_buffers()
1368 struct uvc_streaming *stream = uvc_urb->stream; in uvc_video_decode_isoc() local
1385 ret = uvc_video_decode_start(stream, buf, mem, in uvc_video_decode_isoc()
1388 uvc_video_next_buffers(stream, &buf, &meta_buf); in uvc_video_decode_isoc()
1394 uvc_video_decode_meta(stream, meta_buf, mem, ret); in uvc_video_decode_isoc()
1401 uvc_video_decode_end(stream, buf, mem, in uvc_video_decode_isoc()
1405 uvc_video_next_buffers(stream, &buf, &meta_buf); in uvc_video_decode_isoc()
1413 struct uvc_streaming *stream = uvc_urb->stream; in uvc_video_decode_bulk() local
1421 if (urb->actual_length == 0 && stream->bulk.header_size == 0) in uvc_video_decode_bulk()
1426 stream->bulk.payload_size += len; in uvc_video_decode_bulk()
1431 if (stream->bulk.header_size == 0 && !stream->bulk.skip_payload) { in uvc_video_decode_bulk()
1433 ret = uvc_video_decode_start(stream, buf, mem, len); in uvc_video_decode_bulk()
1435 uvc_video_next_buffers(stream, &buf, &meta_buf); in uvc_video_decode_bulk()
1440 stream->bulk.skip_payload = 1; in uvc_video_decode_bulk()
1442 memcpy(stream->bulk.header, mem, ret); in uvc_video_decode_bulk()
1443 stream->bulk.header_size = ret; in uvc_video_decode_bulk()
1445 uvc_video_decode_meta(stream, meta_buf, mem, ret); in uvc_video_decode_bulk()
1458 if (!stream->bulk.skip_payload && buf != NULL) in uvc_video_decode_bulk()
1465 stream->bulk.payload_size >= stream->bulk.max_payload_size) { in uvc_video_decode_bulk()
1466 if (!stream->bulk.skip_payload && buf != NULL) { in uvc_video_decode_bulk()
1467 uvc_video_decode_end(stream, buf, stream->bulk.header, in uvc_video_decode_bulk()
1468 stream->bulk.payload_size); in uvc_video_decode_bulk()
1470 uvc_video_next_buffers(stream, &buf, &meta_buf); in uvc_video_decode_bulk()
1473 stream->bulk.header_size = 0; in uvc_video_decode_bulk()
1474 stream->bulk.skip_payload = 0; in uvc_video_decode_bulk()
1475 stream->bulk.payload_size = 0; in uvc_video_decode_bulk()
1483 struct uvc_streaming *stream = uvc_urb->stream; in uvc_video_encode_bulk() local
1486 int len = stream->urb_size, ret; in uvc_video_encode_bulk()
1494 if (stream->bulk.header_size == 0) { in uvc_video_encode_bulk()
1495 ret = uvc_video_encode_header(stream, buf, mem, len); in uvc_video_encode_bulk()
1496 stream->bulk.header_size = ret; in uvc_video_encode_bulk()
1497 stream->bulk.payload_size += ret; in uvc_video_encode_bulk()
1503 ret = uvc_video_encode_data(stream, buf, mem, len); in uvc_video_encode_bulk()
1505 stream->bulk.payload_size += ret; in uvc_video_encode_bulk()
1508 if (buf->bytesused == stream->queue.buf_used || in uvc_video_encode_bulk()
1509 stream->bulk.payload_size == stream->bulk.max_payload_size) { in uvc_video_encode_bulk()
1510 if (buf->bytesused == stream->queue.buf_used) { in uvc_video_encode_bulk()
1511 stream->queue.buf_used = 0; in uvc_video_encode_bulk()
1513 buf->buf.sequence = ++stream->sequence; in uvc_video_encode_bulk()
1514 uvc_queue_next_buffer(&stream->queue, buf); in uvc_video_encode_bulk()
1515 stream->last_fid ^= UVC_STREAM_FID; in uvc_video_encode_bulk()
1518 stream->bulk.header_size = 0; in uvc_video_encode_bulk()
1519 stream->bulk.payload_size = 0; in uvc_video_encode_bulk()
1522 urb->transfer_buffer_length = stream->urb_size - len; in uvc_video_encode_bulk()
1528 struct uvc_streaming *stream = uvc_urb->stream; in uvc_video_complete() local
1529 struct uvc_video_queue *queue = &stream->queue; in uvc_video_complete()
1530 struct uvc_video_queue *qmeta = &stream->meta.queue; in uvc_video_complete()
1531 struct vb2_queue *vb2_qmeta = stream->meta.vdev.queue; in uvc_video_complete()
1546 if (stream->frozen) in uvc_video_complete()
1574 stream->decode(uvc_urb, buf, buf_meta); in uvc_video_complete()
1586 queue_work(stream->async_wq, &uvc_urb->work); in uvc_video_complete()
1592 static void uvc_free_urb_buffers(struct uvc_streaming *stream) in uvc_free_urb_buffers() argument
1596 for_each_uvc_urb(uvc_urb, stream) { in uvc_free_urb_buffers()
1601 usb_free_coherent(stream->dev->udev, stream->urb_size, in uvc_free_urb_buffers()
1609 stream->urb_size = 0; in uvc_free_urb_buffers()
1623 static int uvc_alloc_urb_buffers(struct uvc_streaming *stream, in uvc_alloc_urb_buffers() argument
1630 if (stream->urb_size) in uvc_alloc_urb_buffers()
1631 return stream->urb_size / psize; in uvc_alloc_urb_buffers()
1643 struct uvc_urb *uvc_urb = &stream->uvc_urb[i]; in uvc_alloc_urb_buffers()
1645 stream->urb_size = psize * npackets; in uvc_alloc_urb_buffers()
1648 stream->dev->udev, stream->urb_size, in uvc_alloc_urb_buffers()
1652 kmalloc(stream->urb_size, gfp_flags | __GFP_NOWARN); in uvc_alloc_urb_buffers()
1655 uvc_free_urb_buffers(stream); in uvc_alloc_urb_buffers()
1659 uvc_urb->stream = stream; in uvc_alloc_urb_buffers()
1678 static void uvc_video_stop_transfer(struct uvc_streaming *stream, in uvc_video_stop_transfer() argument
1683 uvc_video_stats_stop(stream); in uvc_video_stop_transfer()
1690 for_each_uvc_urb(uvc_urb, stream) in uvc_video_stop_transfer()
1693 flush_workqueue(stream->async_wq); in uvc_video_stop_transfer()
1695 for_each_uvc_urb(uvc_urb, stream) { in uvc_video_stop_transfer()
1701 uvc_free_urb_buffers(stream); in uvc_video_stop_transfer()
1734 static int uvc_init_video_isoc(struct uvc_streaming *stream, in uvc_init_video_isoc() argument
1743 psize = uvc_endpoint_max_bpi(stream->dev->udev, ep); in uvc_init_video_isoc()
1744 size = stream->ctrl.dwMaxVideoFrameSize; in uvc_init_video_isoc()
1746 npackets = uvc_alloc_urb_buffers(stream, size, psize, gfp_flags); in uvc_init_video_isoc()
1752 for_each_uvc_urb(uvc_urb, stream) { in uvc_init_video_isoc()
1755 uvc_video_stop_transfer(stream, 1); in uvc_init_video_isoc()
1759 urb->dev = stream->dev->udev; in uvc_init_video_isoc()
1761 urb->pipe = usb_rcvisocpipe(stream->dev->udev, in uvc_init_video_isoc()
1790 static int uvc_init_video_bulk(struct uvc_streaming *stream, in uvc_init_video_bulk() argument
1800 size = stream->ctrl.dwMaxPayloadTransferSize; in uvc_init_video_bulk()
1801 stream->bulk.max_payload_size = size; in uvc_init_video_bulk()
1803 npackets = uvc_alloc_urb_buffers(stream, size, psize, gfp_flags); in uvc_init_video_bulk()
1810 pipe = usb_rcvbulkpipe(stream->dev->udev, in uvc_init_video_bulk()
1813 pipe = usb_sndbulkpipe(stream->dev->udev, in uvc_init_video_bulk()
1816 if (stream->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) in uvc_init_video_bulk()
1819 for_each_uvc_urb(uvc_urb, stream) { in uvc_init_video_bulk()
1822 uvc_video_stop_transfer(stream, 1); in uvc_init_video_bulk()
1826 usb_fill_bulk_urb(urb, stream->dev->udev, pipe, uvc_urb->buffer, in uvc_init_video_bulk()
1842 static int uvc_video_start_transfer(struct uvc_streaming *stream, in uvc_video_start_transfer() argument
1845 struct usb_interface *intf = stream->intf; in uvc_video_start_transfer()
1851 stream->sequence = -1; in uvc_video_start_transfer()
1852 stream->last_fid = -1; in uvc_video_start_transfer()
1853 stream->bulk.header_size = 0; in uvc_video_start_transfer()
1854 stream->bulk.skip_payload = 0; in uvc_video_start_transfer()
1855 stream->bulk.payload_size = 0; in uvc_video_start_transfer()
1857 uvc_video_stats_start(stream); in uvc_video_start_transfer()
1864 int intfnum = stream->intfnum; in uvc_video_start_transfer()
1867 bandwidth = stream->ctrl.dwMaxPayloadTransferSize; in uvc_video_start_transfer()
1884 stream->header.bEndpointAddress); in uvc_video_start_transfer()
1889 psize = uvc_endpoint_max_bpi(stream->dev->udev, ep); in uvc_video_start_transfer()
1906 ret = usb_set_interface(stream->dev->udev, intfnum, altsetting); in uvc_video_start_transfer()
1910 ret = uvc_init_video_isoc(stream, best_ep, gfp_flags); in uvc_video_start_transfer()
1914 stream->header.bEndpointAddress); in uvc_video_start_transfer()
1922 ret = uvc_init_video_bulk(stream, ep, gfp_flags); in uvc_video_start_transfer()
1929 for_each_uvc_urb(uvc_urb, stream) { in uvc_video_start_transfer()
1934 uvc_video_stop_transfer(stream, 1); in uvc_video_start_transfer()
1942 if (stream->dev->quirks & UVC_QUIRK_RESTORE_CTRLS_ON_INIT) in uvc_video_start_transfer()
1943 uvc_ctrl_restore_values(stream->dev); in uvc_video_start_transfer()
1959 int uvc_video_suspend(struct uvc_streaming *stream) in uvc_video_suspend() argument
1961 if (!uvc_queue_streaming(&stream->queue)) in uvc_video_suspend()
1964 stream->frozen = 1; in uvc_video_suspend()
1965 uvc_video_stop_transfer(stream, 0); in uvc_video_suspend()
1966 usb_set_interface(stream->dev->udev, stream->intfnum, 0); in uvc_video_suspend()
1978 int uvc_video_resume(struct uvc_streaming *stream, int reset) in uvc_video_resume() argument
1988 usb_set_interface(stream->dev->udev, stream->intfnum, 0); in uvc_video_resume()
1990 stream->frozen = 0; in uvc_video_resume()
1992 uvc_video_clock_reset(stream); in uvc_video_resume()
1994 if (!uvc_queue_streaming(&stream->queue)) in uvc_video_resume()
1997 ret = uvc_commit_video(stream, &stream->ctrl); in uvc_video_resume()
2001 return uvc_video_start_transfer(stream, GFP_NOIO); in uvc_video_resume()
2018 int uvc_video_init(struct uvc_streaming *stream) in uvc_video_init() argument
2020 struct uvc_streaming_control *probe = &stream->ctrl; in uvc_video_init()
2027 if (stream->nformats == 0) { in uvc_video_init()
2032 atomic_set(&stream->active, 0); in uvc_video_init()
2039 usb_set_interface(stream->dev->udev, stream->intfnum, 0); in uvc_video_init()
2046 if (uvc_get_video_ctrl(stream, probe, 1, UVC_GET_DEF) == 0) in uvc_video_init()
2047 uvc_set_video_ctrl(stream, probe, 1); in uvc_video_init()
2054 ret = uvc_get_video_ctrl(stream, probe, 1, UVC_GET_CUR); in uvc_video_init()
2061 for (i = stream->nformats; i > 0; --i) { in uvc_video_init()
2062 format = &stream->format[i-1]; in uvc_video_init()
2087 stream->def_format = format; in uvc_video_init()
2088 stream->cur_format = format; in uvc_video_init()
2089 stream->cur_frame = frame; in uvc_video_init()
2092 if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { in uvc_video_init()
2093 if (stream->dev->quirks & UVC_QUIRK_BUILTIN_ISIGHT) in uvc_video_init()
2094 stream->decode = uvc_video_decode_isight; in uvc_video_init()
2095 else if (stream->intf->num_altsetting > 1) in uvc_video_init()
2096 stream->decode = uvc_video_decode_isoc; in uvc_video_init()
2098 stream->decode = uvc_video_decode_bulk; in uvc_video_init()
2100 if (stream->intf->num_altsetting == 1) in uvc_video_init()
2101 stream->decode = uvc_video_encode_bulk; in uvc_video_init()
2110 for_each_uvc_urb(uvc_urb, stream) in uvc_video_init()
2116 int uvc_video_start_streaming(struct uvc_streaming *stream) in uvc_video_start_streaming() argument
2120 ret = uvc_video_clock_init(stream); in uvc_video_start_streaming()
2125 ret = uvc_commit_video(stream, &stream->ctrl); in uvc_video_start_streaming()
2129 ret = uvc_video_start_transfer(stream, GFP_KERNEL); in uvc_video_start_streaming()
2136 usb_set_interface(stream->dev->udev, stream->intfnum, 0); in uvc_video_start_streaming()
2138 uvc_video_clock_cleanup(stream); in uvc_video_start_streaming()
2143 void uvc_video_stop_streaming(struct uvc_streaming *stream) in uvc_video_stop_streaming() argument
2145 uvc_video_stop_transfer(stream, 1); in uvc_video_stop_streaming()
2147 if (stream->intf->num_altsetting > 1) { in uvc_video_stop_streaming()
2148 usb_set_interface(stream->dev->udev, stream->intfnum, 0); in uvc_video_stop_streaming()
2155 unsigned int epnum = stream->header.bEndpointAddress in uvc_video_stop_streaming()
2157 unsigned int dir = stream->header.bEndpointAddress in uvc_video_stop_streaming()
2161 pipe = usb_sndbulkpipe(stream->dev->udev, epnum) | dir; in uvc_video_stop_streaming()
2162 usb_clear_halt(stream->dev->udev, pipe); in uvc_video_stop_streaming()
2165 uvc_video_clock_cleanup(stream); in uvc_video_stop_streaming()