Lines Matching full:stream
129 static void uvc_fixup_video_ctrl(struct uvc_streaming *stream, in uvc_fixup_video_ctrl() argument
136 for (i = 0; i < stream->nformats; ++i) { in uvc_fixup_video_ctrl()
137 if (stream->format[i].index == ctrl->bFormatIndex) { in uvc_fixup_video_ctrl()
138 format = &stream->format[i]; in uvc_fixup_video_ctrl()
158 stream->dev->uvc_version < 0x0110)) in uvc_fixup_video_ctrl()
171 stream->dev->quirks & UVC_QUIRK_FIX_BANDWIDTH && in uvc_fixup_video_ctrl()
172 stream->intf->num_altsetting > 1) { in uvc_fixup_video_ctrl()
189 if (stream->dev->udev->speed == USB_SPEED_HIGH) in uvc_fixup_video_ctrl()
206 static size_t uvc_video_ctrl_size(struct uvc_streaming *stream) in uvc_video_ctrl_size() argument
212 if (stream->dev->uvc_version < 0x0110) in uvc_video_ctrl_size()
214 else if (stream->dev->uvc_version < 0x0150) in uvc_video_ctrl_size()
220 static int uvc_get_video_ctrl(struct uvc_streaming *stream, in uvc_get_video_ctrl() argument
223 u16 size = uvc_video_ctrl_size(stream); in uvc_get_video_ctrl()
227 if ((stream->dev->quirks & UVC_QUIRK_PROBE_DEF) && in uvc_get_video_ctrl()
235 ret = __uvc_query_ctrl(stream->dev, query, 0, stream->intfnum, in uvc_get_video_ctrl()
244 uvc_warn_once(stream->dev, UVC_WARN_MINMAX, "UVC non " in uvc_get_video_ctrl()
256 uvc_warn_once(stream->dev, UVC_WARN_PROBE_DEF, "UVC non " in uvc_get_video_ctrl()
288 ctrl->dwClockFrequency = stream->dev->clock_frequency; in uvc_get_video_ctrl()
299 uvc_fixup_video_ctrl(stream, ctrl); in uvc_get_video_ctrl()
307 static int uvc_set_video_ctrl(struct uvc_streaming *stream, in uvc_set_video_ctrl() argument
310 u16 size = uvc_video_ctrl_size(stream); in uvc_set_video_ctrl()
338 ret = __uvc_query_ctrl(stream->dev, UVC_SET_CUR, 0, stream->intfnum, in uvc_set_video_ctrl()
352 int uvc_probe_video(struct uvc_streaming *stream, in uvc_probe_video() argument
367 ret = uvc_set_video_ctrl(stream, probe, 1); in uvc_probe_video()
372 if (!(stream->dev->quirks & UVC_QUIRK_PROBE_MINMAX)) { in uvc_probe_video()
373 ret = uvc_get_video_ctrl(stream, &probe_min, 1, UVC_GET_MIN); in uvc_probe_video()
376 ret = uvc_get_video_ctrl(stream, &probe_max, 1, UVC_GET_MAX); in uvc_probe_video()
384 ret = uvc_set_video_ctrl(stream, probe, 1); in uvc_probe_video()
387 ret = uvc_get_video_ctrl(stream, probe, 1, UVC_GET_CUR); in uvc_probe_video()
391 if (stream->intf->num_altsetting == 1) in uvc_probe_video()
395 if (bandwidth <= stream->maxpsize) in uvc_probe_video()
398 if (stream->dev->quirks & UVC_QUIRK_PROBE_MINMAX) { in uvc_probe_video()
414 static int uvc_commit_video(struct uvc_streaming *stream, in uvc_commit_video() argument
417 return uvc_set_video_ctrl(stream, probe, 0); in uvc_commit_video()
433 uvc_video_clock_decode(struct uvc_streaming *stream, struct uvc_buffer *buf, in uvc_video_clock_decode() argument
485 if (dev_sof == stream->clock.last_sof) in uvc_video_clock_decode()
488 stream->clock.last_sof = dev_sof; in uvc_video_clock_decode()
490 host_sof = usb_get_current_frame_number(stream->dev->udev); in uvc_video_clock_decode()
512 if (stream->clock.sof_offset == (u16)-1) { in uvc_video_clock_decode()
515 stream->clock.sof_offset = delta_sof; in uvc_video_clock_decode()
517 stream->clock.sof_offset = 0; in uvc_video_clock_decode()
520 dev_sof = (dev_sof + stream->clock.sof_offset) & 2047; in uvc_video_clock_decode()
522 spin_lock_irqsave(&stream->clock.lock, flags); in uvc_video_clock_decode()
524 sample = &stream->clock.samples[stream->clock.head]; in uvc_video_clock_decode()
531 stream->clock.head = (stream->clock.head + 1) % stream->clock.size; in uvc_video_clock_decode()
533 if (stream->clock.count < stream->clock.size) in uvc_video_clock_decode()
534 stream->clock.count++; in uvc_video_clock_decode()
536 spin_unlock_irqrestore(&stream->clock.lock, flags); in uvc_video_clock_decode()
539 static void uvc_video_clock_reset(struct uvc_streaming *stream) in uvc_video_clock_reset() argument
541 struct uvc_clock *clock = &stream->clock; in uvc_video_clock_reset()
549 static int uvc_video_clock_init(struct uvc_streaming *stream) in uvc_video_clock_init() argument
551 struct uvc_clock *clock = &stream->clock; in uvc_video_clock_init()
561 uvc_video_clock_reset(stream); in uvc_video_clock_init()
566 static void uvc_video_clock_cleanup(struct uvc_streaming *stream) in uvc_video_clock_cleanup() argument
568 kfree(stream->clock.samples); in uvc_video_clock_cleanup()
569 stream->clock.samples = NULL; in uvc_video_clock_cleanup()
660 void uvc_video_clock_update(struct uvc_streaming *stream, in uvc_video_clock_update() argument
664 struct uvc_clock *clock = &stream->clock; in uvc_video_clock_update()
715 stream->dev->name, buf->pts, in uvc_video_clock_update()
750 stream->dev->name, in uvc_video_clock_update()
764 * Stream statistics
767 static void uvc_video_stats_decode(struct uvc_streaming *stream, in uvc_video_stats_decode() argument
777 if (stream->stats.stream.nb_frames == 0 && in uvc_video_stats_decode()
778 stream->stats.frame.nb_packets == 0) in uvc_video_stats_decode()
779 stream->stats.stream.start_ts = ktime_get(); in uvc_video_stats_decode()
802 stream->stats.frame.nb_invalid++; in uvc_video_stats_decode()
816 if (has_pts && stream->stats.frame.nb_pts) { in uvc_video_stats_decode()
817 if (stream->stats.frame.pts != pts) { in uvc_video_stats_decode()
818 stream->stats.frame.nb_pts_diffs++; in uvc_video_stats_decode()
819 stream->stats.frame.last_pts_diff = in uvc_video_stats_decode()
820 stream->stats.frame.nb_packets; in uvc_video_stats_decode()
825 stream->stats.frame.nb_pts++; in uvc_video_stats_decode()
826 stream->stats.frame.pts = pts; in uvc_video_stats_decode()
832 if (stream->stats.frame.size == 0) { in uvc_video_stats_decode()
834 stream->stats.frame.has_initial_pts = has_pts; in uvc_video_stats_decode()
836 stream->stats.frame.has_early_pts = true; in uvc_video_stats_decode()
840 if (has_scr && stream->stats.frame.nb_scr) { in uvc_video_stats_decode()
841 if (stream->stats.frame.scr_stc != scr_stc) in uvc_video_stats_decode()
842 stream->stats.frame.nb_scr_diffs++; in uvc_video_stats_decode()
847 if (stream->stats.stream.nb_frames > 0 || in uvc_video_stats_decode()
848 stream->stats.frame.nb_scr > 0) in uvc_video_stats_decode()
849 stream->stats.stream.scr_sof_count += in uvc_video_stats_decode()
850 (scr_sof - stream->stats.stream.scr_sof) % 2048; in uvc_video_stats_decode()
851 stream->stats.stream.scr_sof = scr_sof; in uvc_video_stats_decode()
853 stream->stats.frame.nb_scr++; in uvc_video_stats_decode()
854 stream->stats.frame.scr_stc = scr_stc; in uvc_video_stats_decode()
855 stream->stats.frame.scr_sof = scr_sof; in uvc_video_stats_decode()
857 if (scr_sof < stream->stats.stream.min_sof) in uvc_video_stats_decode()
858 stream->stats.stream.min_sof = scr_sof; in uvc_video_stats_decode()
859 if (scr_sof > stream->stats.stream.max_sof) in uvc_video_stats_decode()
860 stream->stats.stream.max_sof = scr_sof; in uvc_video_stats_decode()
864 if (stream->stats.frame.size == 0 && len > header_size) in uvc_video_stats_decode()
865 stream->stats.frame.first_data = stream->stats.frame.nb_packets; in uvc_video_stats_decode()
868 stream->stats.frame.size += len - header_size; in uvc_video_stats_decode()
871 stream->stats.frame.nb_packets++; in uvc_video_stats_decode()
873 stream->stats.frame.nb_empty++; in uvc_video_stats_decode()
876 stream->stats.frame.nb_errors++; in uvc_video_stats_decode()
879 static void uvc_video_stats_update(struct uvc_streaming *stream) in uvc_video_stats_update() argument
881 struct uvc_stats_frame *frame = &stream->stats.frame; in uvc_video_stats_update()
886 stream->sequence, frame->first_data, in uvc_video_stats_update()
894 stream->stats.stream.nb_frames++; in uvc_video_stats_update()
895 stream->stats.stream.nb_packets += stream->stats.frame.nb_packets; in uvc_video_stats_update()
896 stream->stats.stream.nb_empty += stream->stats.frame.nb_empty; in uvc_video_stats_update()
897 stream->stats.stream.nb_errors += stream->stats.frame.nb_errors; in uvc_video_stats_update()
898 stream->stats.stream.nb_invalid += stream->stats.frame.nb_invalid; in uvc_video_stats_update()
901 stream->stats.stream.nb_pts_early++; in uvc_video_stats_update()
903 stream->stats.stream.nb_pts_initial++; in uvc_video_stats_update()
905 stream->stats.stream.nb_pts_constant++; in uvc_video_stats_update()
907 stream->stats.stream.nb_scr_count_ok++; in uvc_video_stats_update()
909 stream->stats.stream.nb_scr_diffs_ok++; in uvc_video_stats_update()
911 memset(&stream->stats.frame, 0, sizeof(stream->stats.frame)); in uvc_video_stats_update()
914 size_t uvc_video_stats_dump(struct uvc_streaming *stream, char *buf, in uvc_video_stats_dump() argument
924 duration = ktime_ms_delta(stream->stats.stream.stop_ts, in uvc_video_stats_dump()
925 stream->stats.stream.start_ts); in uvc_video_stats_dump()
927 scr_sof_freq = stream->stats.stream.scr_sof_count * 1000 in uvc_video_stats_dump()
935 stream->stats.stream.nb_frames, in uvc_video_stats_dump()
936 stream->stats.stream.nb_packets, in uvc_video_stats_dump()
937 stream->stats.stream.nb_empty, in uvc_video_stats_dump()
938 stream->stats.stream.nb_errors, in uvc_video_stats_dump()
939 stream->stats.stream.nb_invalid); in uvc_video_stats_dump()
942 stream->stats.stream.nb_pts_early, in uvc_video_stats_dump()
943 stream->stats.stream.nb_pts_initial, in uvc_video_stats_dump()
944 stream->stats.stream.nb_pts_constant); in uvc_video_stats_dump()
947 stream->stats.stream.nb_scr_count_ok, in uvc_video_stats_dump()
948 stream->stats.stream.nb_scr_diffs_ok); in uvc_video_stats_dump()
951 stream->stats.stream.min_sof, in uvc_video_stats_dump()
952 stream->stats.stream.max_sof, in uvc_video_stats_dump()
958 static void uvc_video_stats_start(struct uvc_streaming *stream) in uvc_video_stats_start() argument
960 memset(&stream->stats, 0, sizeof(stream->stats)); in uvc_video_stats_start()
961 stream->stats.stream.min_sof = 2048; in uvc_video_stats_start()
964 static void uvc_video_stats_stop(struct uvc_streaming *stream) in uvc_video_stats_stop() argument
966 stream->stats.stream.stop_ts = ktime_get(); in uvc_video_stats_stop()
1008 static int uvc_video_decode_start(struct uvc_streaming *stream, in uvc_video_decode_start() argument
1019 stream->stats.frame.nb_invalid++; in uvc_video_decode_start()
1028 if (stream->last_fid != fid) { in uvc_video_decode_start()
1029 stream->sequence++; in uvc_video_decode_start()
1030 if (stream->sequence) in uvc_video_decode_start()
1031 uvc_video_stats_update(stream); in uvc_video_decode_start()
1034 uvc_video_clock_decode(stream, buf, data, len); in uvc_video_decode_start()
1035 uvc_video_stats_decode(stream, data, len); in uvc_video_decode_start()
1041 stream->last_fid = fid; in uvc_video_decode_start()
1052 /* Synchronize to the input stream by waiting for the FID bit to be in uvc_video_decode_start()
1054 * stream->last_fid is initialized to -1, so the first isochronous in uvc_video_decode_start()
1057 * If the device doesn't toggle the FID bit, invert stream->last_fid in uvc_video_decode_start()
1061 if (fid == stream->last_fid) { in uvc_video_decode_start()
1064 if ((stream->dev->quirks & UVC_QUIRK_STREAM_NO_FID) && in uvc_video_decode_start()
1066 stream->last_fid ^= UVC_STREAM_FID; in uvc_video_decode_start()
1071 buf->buf.sequence = stream->sequence; in uvc_video_decode_start()
1085 * stream->last_fid is initialized to -1, so the first isochronous in uvc_video_decode_start()
1093 if (fid != stream->last_fid && buf->bytesused != 0) { in uvc_video_decode_start()
1100 stream->last_fid = fid; in uvc_video_decode_start()
1105 static void uvc_video_decode_data(struct uvc_streaming *stream, in uvc_video_decode_data() argument
1129 static void uvc_video_decode_end(struct uvc_streaming *stream, in uvc_video_decode_end() argument
1138 if (stream->dev->quirks & UVC_QUIRK_STREAM_NO_FID) in uvc_video_decode_end()
1139 stream->last_fid ^= UVC_STREAM_FID; in uvc_video_decode_end()
1154 static int uvc_video_encode_header(struct uvc_streaming *stream, in uvc_video_encode_header() argument
1159 | (stream->last_fid & UVC_STREAM_FID); in uvc_video_encode_header()
1163 static int uvc_video_encode_data(struct uvc_streaming *stream, in uvc_video_encode_data() argument
1166 struct uvc_video_queue *queue = &stream->queue; in uvc_video_encode_data()
1173 nbytes = min(stream->bulk.max_payload_size - stream->bulk.payload_size, in uvc_video_encode_data()
1197 static void uvc_video_decode_meta(struct uvc_streaming *stream, in uvc_video_decode_meta() argument
1231 if (stream->meta.format == V4L2_META_FMT_UVC) in uvc_video_decode_meta()
1235 !memcmp(scr, stream->clock.last_scr, 6))) in uvc_video_decode_meta()
1241 sof = usb_get_current_frame_number(stream->dev->udev); in uvc_video_decode_meta()
1247 memcpy(stream->clock.last_scr, scr, 6); in uvc_video_decode_meta()
1268 static void uvc_video_validate_buffer(const struct uvc_streaming *stream, in uvc_video_validate_buffer() argument
1271 if (stream->ctrl.dwMaxVideoFrameSize != buf->bytesused && in uvc_video_validate_buffer()
1272 !(stream->cur_format->flags & UVC_FMT_FLAG_COMPRESSED)) in uvc_video_validate_buffer()
1280 static void uvc_video_next_buffers(struct uvc_streaming *stream, in uvc_video_next_buffers() argument
1283 uvc_video_validate_buffer(stream, *video_buf); in uvc_video_next_buffers()
1296 *meta_buf = uvc_queue_next_buffer(&stream->meta.queue, in uvc_video_next_buffers()
1299 *video_buf = uvc_queue_next_buffer(&stream->queue, *video_buf); in uvc_video_next_buffers()
1302 static void uvc_video_decode_isoc(struct urb *urb, struct uvc_streaming *stream, in uvc_video_decode_isoc() argument
1321 ret = uvc_video_decode_start(stream, buf, mem, in uvc_video_decode_isoc()
1324 uvc_video_next_buffers(stream, &buf, &meta_buf); in uvc_video_decode_isoc()
1330 uvc_video_decode_meta(stream, meta_buf, mem, ret); in uvc_video_decode_isoc()
1333 uvc_video_decode_data(stream, buf, mem + ret, in uvc_video_decode_isoc()
1337 uvc_video_decode_end(stream, buf, mem, in uvc_video_decode_isoc()
1341 uvc_video_next_buffers(stream, &buf, &meta_buf); in uvc_video_decode_isoc()
1345 static void uvc_video_decode_bulk(struct urb *urb, struct uvc_streaming *stream, in uvc_video_decode_bulk() argument
1355 if (urb->actual_length == 0 && stream->bulk.header_size == 0) in uvc_video_decode_bulk()
1360 stream->bulk.payload_size += len; in uvc_video_decode_bulk()
1365 if (stream->bulk.header_size == 0 && !stream->bulk.skip_payload) { in uvc_video_decode_bulk()
1367 ret = uvc_video_decode_start(stream, buf, mem, len); in uvc_video_decode_bulk()
1369 uvc_video_next_buffers(stream, &buf, &meta_buf); in uvc_video_decode_bulk()
1374 stream->bulk.skip_payload = 1; in uvc_video_decode_bulk()
1376 memcpy(stream->bulk.header, mem, ret); in uvc_video_decode_bulk()
1377 stream->bulk.header_size = ret; in uvc_video_decode_bulk()
1379 uvc_video_decode_meta(stream, meta_buf, mem, ret); in uvc_video_decode_bulk()
1392 if (!stream->bulk.skip_payload && buf != NULL) in uvc_video_decode_bulk()
1393 uvc_video_decode_data(stream, buf, mem, len); in uvc_video_decode_bulk()
1399 stream->bulk.payload_size >= stream->bulk.max_payload_size) { in uvc_video_decode_bulk()
1400 if (!stream->bulk.skip_payload && buf != NULL) { in uvc_video_decode_bulk()
1401 uvc_video_decode_end(stream, buf, stream->bulk.header, in uvc_video_decode_bulk()
1402 stream->bulk.payload_size); in uvc_video_decode_bulk()
1404 uvc_video_next_buffers(stream, &buf, &meta_buf); in uvc_video_decode_bulk()
1407 stream->bulk.header_size = 0; in uvc_video_decode_bulk()
1408 stream->bulk.skip_payload = 0; in uvc_video_decode_bulk()
1409 stream->bulk.payload_size = 0; in uvc_video_decode_bulk()
1413 static void uvc_video_encode_bulk(struct urb *urb, struct uvc_streaming *stream, in uvc_video_encode_bulk() argument
1417 int len = stream->urb_size, ret; in uvc_video_encode_bulk()
1425 if (stream->bulk.header_size == 0) { in uvc_video_encode_bulk()
1426 ret = uvc_video_encode_header(stream, buf, mem, len); in uvc_video_encode_bulk()
1427 stream->bulk.header_size = ret; in uvc_video_encode_bulk()
1428 stream->bulk.payload_size += ret; in uvc_video_encode_bulk()
1434 ret = uvc_video_encode_data(stream, buf, mem, len); in uvc_video_encode_bulk()
1436 stream->bulk.payload_size += ret; in uvc_video_encode_bulk()
1439 if (buf->bytesused == stream->queue.buf_used || in uvc_video_encode_bulk()
1440 stream->bulk.payload_size == stream->bulk.max_payload_size) { in uvc_video_encode_bulk()
1441 if (buf->bytesused == stream->queue.buf_used) { in uvc_video_encode_bulk()
1442 stream->queue.buf_used = 0; in uvc_video_encode_bulk()
1444 buf->buf.sequence = ++stream->sequence; in uvc_video_encode_bulk()
1445 uvc_queue_next_buffer(&stream->queue, buf); in uvc_video_encode_bulk()
1446 stream->last_fid ^= UVC_STREAM_FID; in uvc_video_encode_bulk()
1449 stream->bulk.header_size = 0; in uvc_video_encode_bulk()
1450 stream->bulk.payload_size = 0; in uvc_video_encode_bulk()
1453 urb->transfer_buffer_length = stream->urb_size - len; in uvc_video_encode_bulk()
1458 struct uvc_streaming *stream = urb->context; in uvc_video_complete() local
1459 struct uvc_video_queue *queue = &stream->queue; in uvc_video_complete()
1460 struct uvc_video_queue *qmeta = &stream->meta.queue; in uvc_video_complete()
1461 struct vb2_queue *vb2_qmeta = stream->meta.vdev.queue; in uvc_video_complete()
1476 if (stream->frozen) in uvc_video_complete()
1501 stream->decode(urb, stream, buf, buf_meta); in uvc_video_complete()
1512 static void uvc_free_urb_buffers(struct uvc_streaming *stream) in uvc_free_urb_buffers() argument
1517 if (stream->urb_buffer[i]) { in uvc_free_urb_buffers()
1519 usb_free_coherent(stream->dev->udev, stream->urb_size, in uvc_free_urb_buffers()
1520 stream->urb_buffer[i], stream->urb_dma[i]); in uvc_free_urb_buffers()
1522 kfree(stream->urb_buffer[i]); in uvc_free_urb_buffers()
1524 stream->urb_buffer[i] = NULL; in uvc_free_urb_buffers()
1528 stream->urb_size = 0; in uvc_free_urb_buffers()
1542 static int uvc_alloc_urb_buffers(struct uvc_streaming *stream, in uvc_alloc_urb_buffers() argument
1549 if (stream->urb_size) in uvc_alloc_urb_buffers()
1550 return stream->urb_size / psize; in uvc_alloc_urb_buffers()
1562 stream->urb_size = psize * npackets; in uvc_alloc_urb_buffers()
1564 stream->urb_buffer[i] = usb_alloc_coherent( in uvc_alloc_urb_buffers()
1565 stream->dev->udev, stream->urb_size, in uvc_alloc_urb_buffers()
1566 gfp_flags | __GFP_NOWARN, &stream->urb_dma[i]); in uvc_alloc_urb_buffers()
1568 stream->urb_buffer[i] = in uvc_alloc_urb_buffers()
1569 kmalloc(stream->urb_size, gfp_flags | __GFP_NOWARN); in uvc_alloc_urb_buffers()
1571 if (!stream->urb_buffer[i]) { in uvc_alloc_urb_buffers()
1572 uvc_free_urb_buffers(stream); in uvc_alloc_urb_buffers()
1593 static void uvc_uninit_video(struct uvc_streaming *stream, int free_buffers) in uvc_uninit_video() argument
1598 uvc_video_stats_stop(stream); in uvc_uninit_video()
1601 urb = stream->urb[i]; in uvc_uninit_video()
1607 stream->urb[i] = NULL; in uvc_uninit_video()
1611 uvc_free_urb_buffers(stream); in uvc_uninit_video()
1644 static int uvc_init_video_isoc(struct uvc_streaming *stream, in uvc_init_video_isoc() argument
1652 psize = uvc_endpoint_max_bpi(stream->dev->udev, ep); in uvc_init_video_isoc()
1653 size = stream->ctrl.dwMaxVideoFrameSize; in uvc_init_video_isoc()
1655 npackets = uvc_alloc_urb_buffers(stream, size, psize, gfp_flags); in uvc_init_video_isoc()
1664 uvc_uninit_video(stream, 1); in uvc_init_video_isoc()
1668 urb->dev = stream->dev->udev; in uvc_init_video_isoc()
1669 urb->context = stream; in uvc_init_video_isoc()
1670 urb->pipe = usb_rcvisocpipe(stream->dev->udev, in uvc_init_video_isoc()
1674 urb->transfer_dma = stream->urb_dma[i]; in uvc_init_video_isoc()
1679 urb->transfer_buffer = stream->urb_buffer[i]; in uvc_init_video_isoc()
1689 stream->urb[i] = urb; in uvc_init_video_isoc()
1699 static int uvc_init_video_bulk(struct uvc_streaming *stream, in uvc_init_video_bulk() argument
1708 size = stream->ctrl.dwMaxPayloadTransferSize; in uvc_init_video_bulk()
1709 stream->bulk.max_payload_size = size; in uvc_init_video_bulk()
1711 npackets = uvc_alloc_urb_buffers(stream, size, psize, gfp_flags); in uvc_init_video_bulk()
1718 pipe = usb_rcvbulkpipe(stream->dev->udev, in uvc_init_video_bulk()
1721 pipe = usb_sndbulkpipe(stream->dev->udev, in uvc_init_video_bulk()
1724 if (stream->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) in uvc_init_video_bulk()
1730 uvc_uninit_video(stream, 1); in uvc_init_video_bulk()
1734 usb_fill_bulk_urb(urb, stream->dev->udev, pipe, in uvc_init_video_bulk()
1735 stream->urb_buffer[i], size, uvc_video_complete, in uvc_init_video_bulk()
1736 stream); in uvc_init_video_bulk()
1739 urb->transfer_dma = stream->urb_dma[i]; in uvc_init_video_bulk()
1742 stream->urb[i] = urb; in uvc_init_video_bulk()
1751 static int uvc_init_video(struct uvc_streaming *stream, gfp_t gfp_flags) in uvc_init_video() argument
1753 struct usb_interface *intf = stream->intf; in uvc_init_video()
1758 stream->sequence = -1; in uvc_init_video()
1759 stream->last_fid = -1; in uvc_init_video()
1760 stream->bulk.header_size = 0; in uvc_init_video()
1761 stream->bulk.skip_payload = 0; in uvc_init_video()
1762 stream->bulk.payload_size = 0; in uvc_init_video()
1764 uvc_video_stats_start(stream); in uvc_init_video()
1771 int intfnum = stream->intfnum; in uvc_init_video()
1774 bandwidth = stream->ctrl.dwMaxPayloadTransferSize; in uvc_init_video()
1791 stream->header.bEndpointAddress); in uvc_init_video()
1796 psize = uvc_endpoint_max_bpi(stream->dev->udev, ep); in uvc_init_video()
1813 ret = usb_set_interface(stream->dev->udev, intfnum, altsetting); in uvc_init_video()
1817 ret = uvc_init_video_isoc(stream, best_ep, gfp_flags); in uvc_init_video()
1821 stream->header.bEndpointAddress); in uvc_init_video()
1825 ret = uvc_init_video_bulk(stream, ep, gfp_flags); in uvc_init_video()
1833 ret = usb_submit_urb(stream->urb[i], gfp_flags); in uvc_init_video()
1837 uvc_uninit_video(stream, 1); in uvc_init_video()
1845 if (stream->dev->quirks & UVC_QUIRK_RESTORE_CTRLS_ON_INIT) in uvc_init_video()
1846 uvc_ctrl_restore_values(stream->dev); in uvc_init_video()
1862 int uvc_video_suspend(struct uvc_streaming *stream) in uvc_video_suspend() argument
1864 if (!uvc_queue_streaming(&stream->queue)) in uvc_video_suspend()
1867 stream->frozen = 1; in uvc_video_suspend()
1868 uvc_uninit_video(stream, 0); in uvc_video_suspend()
1869 usb_set_interface(stream->dev->udev, stream->intfnum, 0); in uvc_video_suspend()
1881 int uvc_video_resume(struct uvc_streaming *stream, int reset) in uvc_video_resume() argument
1891 usb_set_interface(stream->dev->udev, stream->intfnum, 0); in uvc_video_resume()
1893 stream->frozen = 0; in uvc_video_resume()
1895 uvc_video_clock_reset(stream); in uvc_video_resume()
1897 if (!uvc_queue_streaming(&stream->queue)) in uvc_video_resume()
1900 ret = uvc_commit_video(stream, &stream->ctrl); in uvc_video_resume()
1904 return uvc_init_video(stream, GFP_NOIO); in uvc_video_resume()
1921 int uvc_video_init(struct uvc_streaming *stream) in uvc_video_init() argument
1923 struct uvc_streaming_control *probe = &stream->ctrl; in uvc_video_init()
1929 if (stream->nformats == 0) { in uvc_video_init()
1934 atomic_set(&stream->active, 0); in uvc_video_init()
1941 usb_set_interface(stream->dev->udev, stream->intfnum, 0); in uvc_video_init()
1948 if (uvc_get_video_ctrl(stream, probe, 1, UVC_GET_DEF) == 0) in uvc_video_init()
1949 uvc_set_video_ctrl(stream, probe, 1); in uvc_video_init()
1956 ret = uvc_get_video_ctrl(stream, probe, 1, UVC_GET_CUR); in uvc_video_init()
1963 for (i = stream->nformats; i > 0; --i) { in uvc_video_init()
1964 format = &stream->format[i-1]; in uvc_video_init()
1975 /* Zero bFrameIndex might be correct. Stream-based formats (including in uvc_video_init()
1989 stream->def_format = format; in uvc_video_init()
1990 stream->cur_format = format; in uvc_video_init()
1991 stream->cur_frame = frame; in uvc_video_init()
1994 if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { in uvc_video_init()
1995 if (stream->dev->quirks & UVC_QUIRK_BUILTIN_ISIGHT) in uvc_video_init()
1996 stream->decode = uvc_video_decode_isight; in uvc_video_init()
1997 else if (stream->intf->num_altsetting > 1) in uvc_video_init()
1998 stream->decode = uvc_video_decode_isoc; in uvc_video_init()
2000 stream->decode = uvc_video_decode_bulk; in uvc_video_init()
2002 if (stream->intf->num_altsetting == 1) in uvc_video_init()
2003 stream->decode = uvc_video_encode_bulk; in uvc_video_init()
2015 * Enable or disable the video stream.
2017 int uvc_video_enable(struct uvc_streaming *stream, int enable) in uvc_video_enable() argument
2022 uvc_uninit_video(stream, 1); in uvc_video_enable()
2023 if (stream->intf->num_altsetting > 1) { in uvc_video_enable()
2024 usb_set_interface(stream->dev->udev, in uvc_video_enable()
2025 stream->intfnum, 0); in uvc_video_enable()
2028 * when the video stream is stopped. Windows sends a in uvc_video_enable()
2032 unsigned int epnum = stream->header.bEndpointAddress in uvc_video_enable()
2034 unsigned int dir = stream->header.bEndpointAddress in uvc_video_enable()
2038 pipe = usb_sndbulkpipe(stream->dev->udev, epnum) | dir; in uvc_video_enable()
2039 usb_clear_halt(stream->dev->udev, pipe); in uvc_video_enable()
2042 uvc_video_clock_cleanup(stream); in uvc_video_enable()
2046 ret = uvc_video_clock_init(stream); in uvc_video_enable()
2051 ret = uvc_commit_video(stream, &stream->ctrl); in uvc_video_enable()
2055 ret = uvc_init_video(stream, GFP_KERNEL); in uvc_video_enable()
2062 usb_set_interface(stream->dev->udev, stream->intfnum, 0); in uvc_video_enable()
2064 uvc_video_clock_cleanup(stream); in uvc_video_enable()