Lines Matching full:stream
127 static void uvc_fixup_video_ctrl(struct uvc_streaming *stream, in uvc_fixup_video_ctrl() argument
149 if (usb_match_one_id(stream->dev->intf, &elgato_cam_link_4k) && in uvc_fixup_video_ctrl()
153 uvc_dbg(stream->dev, VIDEO, in uvc_fixup_video_ctrl()
161 for (i = 0; i < stream->nformats; ++i) { in uvc_fixup_video_ctrl()
162 if (stream->format[i].index == ctrl->bFormatIndex) { in uvc_fixup_video_ctrl()
163 format = &stream->format[i]; in uvc_fixup_video_ctrl()
183 stream->dev->uvc_version < 0x0110)) in uvc_fixup_video_ctrl()
196 stream->dev->quirks & UVC_QUIRK_FIX_BANDWIDTH && in uvc_fixup_video_ctrl()
197 stream->intf->num_altsetting > 1) { in uvc_fixup_video_ctrl()
214 if (stream->dev->udev->speed == USB_SPEED_HIGH) in uvc_fixup_video_ctrl()
231 static size_t uvc_video_ctrl_size(struct uvc_streaming *stream) in uvc_video_ctrl_size() argument
237 if (stream->dev->uvc_version < 0x0110) in uvc_video_ctrl_size()
239 else if (stream->dev->uvc_version < 0x0150) in uvc_video_ctrl_size()
245 static int uvc_get_video_ctrl(struct uvc_streaming *stream, in uvc_get_video_ctrl() argument
248 u16 size = uvc_video_ctrl_size(stream); in uvc_get_video_ctrl()
252 if ((stream->dev->quirks & UVC_QUIRK_PROBE_DEF) && in uvc_get_video_ctrl()
260 ret = __uvc_query_ctrl(stream->dev, query, 0, stream->intfnum, in uvc_get_video_ctrl()
269 uvc_warn_once(stream->dev, UVC_WARN_MINMAX, "UVC non " in uvc_get_video_ctrl()
281 uvc_warn_once(stream->dev, UVC_WARN_PROBE_DEF, "UVC non " in uvc_get_video_ctrl()
287 dev_err(&stream->intf->dev, in uvc_get_video_ctrl()
313 ctrl->dwClockFrequency = stream->dev->clock_frequency; in uvc_get_video_ctrl()
324 uvc_fixup_video_ctrl(stream, ctrl); in uvc_get_video_ctrl()
332 static int uvc_set_video_ctrl(struct uvc_streaming *stream, in uvc_set_video_ctrl() argument
335 u16 size = uvc_video_ctrl_size(stream); in uvc_set_video_ctrl()
363 ret = __uvc_query_ctrl(stream->dev, UVC_SET_CUR, 0, stream->intfnum, in uvc_set_video_ctrl()
367 dev_err(&stream->intf->dev, in uvc_set_video_ctrl()
377 int uvc_probe_video(struct uvc_streaming *stream, in uvc_probe_video() argument
392 ret = uvc_set_video_ctrl(stream, probe, 1); in uvc_probe_video()
397 if (!(stream->dev->quirks & UVC_QUIRK_PROBE_MINMAX)) { in uvc_probe_video()
398 ret = uvc_get_video_ctrl(stream, &probe_min, 1, UVC_GET_MIN); in uvc_probe_video()
401 ret = uvc_get_video_ctrl(stream, &probe_max, 1, UVC_GET_MAX); in uvc_probe_video()
409 ret = uvc_set_video_ctrl(stream, probe, 1); in uvc_probe_video()
412 ret = uvc_get_video_ctrl(stream, probe, 1, UVC_GET_CUR); in uvc_probe_video()
416 if (stream->intf->num_altsetting == 1) in uvc_probe_video()
420 if (bandwidth <= stream->maxpsize) in uvc_probe_video()
423 if (stream->dev->quirks & UVC_QUIRK_PROBE_MINMAX) { in uvc_probe_video()
439 static int uvc_commit_video(struct uvc_streaming *stream, in uvc_commit_video() argument
442 return uvc_set_video_ctrl(stream, probe, 0); in uvc_commit_video()
458 uvc_video_clock_decode(struct uvc_streaming *stream, struct uvc_buffer *buf, in uvc_video_clock_decode() argument
510 if (dev_sof == stream->clock.last_sof) in uvc_video_clock_decode()
513 stream->clock.last_sof = dev_sof; in uvc_video_clock_decode()
515 host_sof = usb_get_current_frame_number(stream->dev->udev); in uvc_video_clock_decode()
537 if (stream->clock.sof_offset == (u16)-1) { in uvc_video_clock_decode()
540 stream->clock.sof_offset = delta_sof; in uvc_video_clock_decode()
542 stream->clock.sof_offset = 0; in uvc_video_clock_decode()
545 dev_sof = (dev_sof + stream->clock.sof_offset) & 2047; in uvc_video_clock_decode()
547 spin_lock_irqsave(&stream->clock.lock, flags); in uvc_video_clock_decode()
549 sample = &stream->clock.samples[stream->clock.head]; in uvc_video_clock_decode()
556 stream->clock.head = (stream->clock.head + 1) % stream->clock.size; in uvc_video_clock_decode()
558 if (stream->clock.count < stream->clock.size) in uvc_video_clock_decode()
559 stream->clock.count++; in uvc_video_clock_decode()
561 spin_unlock_irqrestore(&stream->clock.lock, flags); in uvc_video_clock_decode()
564 static void uvc_video_clock_reset(struct uvc_streaming *stream) in uvc_video_clock_reset() argument
566 struct uvc_clock *clock = &stream->clock; in uvc_video_clock_reset()
574 static int uvc_video_clock_init(struct uvc_streaming *stream) in uvc_video_clock_init() argument
576 struct uvc_clock *clock = &stream->clock; in uvc_video_clock_init()
586 uvc_video_clock_reset(stream); in uvc_video_clock_init()
591 static void uvc_video_clock_cleanup(struct uvc_streaming *stream) in uvc_video_clock_cleanup() argument
593 kfree(stream->clock.samples); in uvc_video_clock_cleanup()
594 stream->clock.samples = NULL; in uvc_video_clock_cleanup()
685 void uvc_video_clock_update(struct uvc_streaming *stream, in uvc_video_clock_update() argument
689 struct uvc_clock *clock = &stream->clock; in uvc_video_clock_update()
738 uvc_dbg(stream->dev, CLOCK, in uvc_video_clock_update()
740 stream->dev->name, buf->pts, in uvc_video_clock_update()
773 uvc_dbg(stream->dev, CLOCK, in uvc_video_clock_update()
775 stream->dev->name, in uvc_video_clock_update()
789 * Stream statistics
792 static void uvc_video_stats_decode(struct uvc_streaming *stream, in uvc_video_stats_decode() argument
802 if (stream->stats.stream.nb_frames == 0 && in uvc_video_stats_decode()
803 stream->stats.frame.nb_packets == 0) in uvc_video_stats_decode()
804 stream->stats.stream.start_ts = ktime_get(); in uvc_video_stats_decode()
827 stream->stats.frame.nb_invalid++; in uvc_video_stats_decode()
841 if (has_pts && stream->stats.frame.nb_pts) { in uvc_video_stats_decode()
842 if (stream->stats.frame.pts != pts) { in uvc_video_stats_decode()
843 stream->stats.frame.nb_pts_diffs++; in uvc_video_stats_decode()
844 stream->stats.frame.last_pts_diff = in uvc_video_stats_decode()
845 stream->stats.frame.nb_packets; in uvc_video_stats_decode()
850 stream->stats.frame.nb_pts++; in uvc_video_stats_decode()
851 stream->stats.frame.pts = pts; in uvc_video_stats_decode()
857 if (stream->stats.frame.size == 0) { in uvc_video_stats_decode()
859 stream->stats.frame.has_initial_pts = has_pts; in uvc_video_stats_decode()
861 stream->stats.frame.has_early_pts = true; in uvc_video_stats_decode()
865 if (has_scr && stream->stats.frame.nb_scr) { in uvc_video_stats_decode()
866 if (stream->stats.frame.scr_stc != scr_stc) in uvc_video_stats_decode()
867 stream->stats.frame.nb_scr_diffs++; in uvc_video_stats_decode()
872 if (stream->stats.stream.nb_frames > 0 || in uvc_video_stats_decode()
873 stream->stats.frame.nb_scr > 0) in uvc_video_stats_decode()
874 stream->stats.stream.scr_sof_count += in uvc_video_stats_decode()
875 (scr_sof - stream->stats.stream.scr_sof) % 2048; in uvc_video_stats_decode()
876 stream->stats.stream.scr_sof = scr_sof; in uvc_video_stats_decode()
878 stream->stats.frame.nb_scr++; in uvc_video_stats_decode()
879 stream->stats.frame.scr_stc = scr_stc; in uvc_video_stats_decode()
880 stream->stats.frame.scr_sof = scr_sof; in uvc_video_stats_decode()
882 if (scr_sof < stream->stats.stream.min_sof) in uvc_video_stats_decode()
883 stream->stats.stream.min_sof = scr_sof; in uvc_video_stats_decode()
884 if (scr_sof > stream->stats.stream.max_sof) in uvc_video_stats_decode()
885 stream->stats.stream.max_sof = scr_sof; in uvc_video_stats_decode()
889 if (stream->stats.frame.size == 0 && len > header_size) in uvc_video_stats_decode()
890 stream->stats.frame.first_data = stream->stats.frame.nb_packets; in uvc_video_stats_decode()
893 stream->stats.frame.size += len - header_size; in uvc_video_stats_decode()
896 stream->stats.frame.nb_packets++; in uvc_video_stats_decode()
898 stream->stats.frame.nb_empty++; in uvc_video_stats_decode()
901 stream->stats.frame.nb_errors++; in uvc_video_stats_decode()
904 static void uvc_video_stats_update(struct uvc_streaming *stream) in uvc_video_stats_update() argument
906 struct uvc_stats_frame *frame = &stream->stats.frame; in uvc_video_stats_update()
908 uvc_dbg(stream->dev, STATS, in uvc_video_stats_update()
910 stream->sequence, frame->first_data, in uvc_video_stats_update()
918 stream->stats.stream.nb_frames++; in uvc_video_stats_update()
919 stream->stats.stream.nb_packets += stream->stats.frame.nb_packets; in uvc_video_stats_update()
920 stream->stats.stream.nb_empty += stream->stats.frame.nb_empty; in uvc_video_stats_update()
921 stream->stats.stream.nb_errors += stream->stats.frame.nb_errors; in uvc_video_stats_update()
922 stream->stats.stream.nb_invalid += stream->stats.frame.nb_invalid; in uvc_video_stats_update()
925 stream->stats.stream.nb_pts_early++; in uvc_video_stats_update()
927 stream->stats.stream.nb_pts_initial++; in uvc_video_stats_update()
929 stream->stats.stream.nb_pts_constant++; in uvc_video_stats_update()
931 stream->stats.stream.nb_scr_count_ok++; in uvc_video_stats_update()
933 stream->stats.stream.nb_scr_diffs_ok++; in uvc_video_stats_update()
935 memset(&stream->stats.frame, 0, sizeof(stream->stats.frame)); in uvc_video_stats_update()
938 size_t uvc_video_stats_dump(struct uvc_streaming *stream, char *buf, in uvc_video_stats_dump() argument
948 duration = ktime_ms_delta(stream->stats.stream.stop_ts, in uvc_video_stats_dump()
949 stream->stats.stream.start_ts); in uvc_video_stats_dump()
951 scr_sof_freq = stream->stats.stream.scr_sof_count * 1000 in uvc_video_stats_dump()
959 stream->stats.stream.nb_frames, in uvc_video_stats_dump()
960 stream->stats.stream.nb_packets, in uvc_video_stats_dump()
961 stream->stats.stream.nb_empty, in uvc_video_stats_dump()
962 stream->stats.stream.nb_errors, in uvc_video_stats_dump()
963 stream->stats.stream.nb_invalid); in uvc_video_stats_dump()
966 stream->stats.stream.nb_pts_early, in uvc_video_stats_dump()
967 stream->stats.stream.nb_pts_initial, in uvc_video_stats_dump()
968 stream->stats.stream.nb_pts_constant); in uvc_video_stats_dump()
971 stream->stats.stream.nb_scr_count_ok, in uvc_video_stats_dump()
972 stream->stats.stream.nb_scr_diffs_ok); in uvc_video_stats_dump()
975 stream->stats.stream.min_sof, in uvc_video_stats_dump()
976 stream->stats.stream.max_sof, in uvc_video_stats_dump()
982 static void uvc_video_stats_start(struct uvc_streaming *stream) in uvc_video_stats_start() argument
984 memset(&stream->stats, 0, sizeof(stream->stats)); in uvc_video_stats_start()
985 stream->stats.stream.min_sof = 2048; in uvc_video_stats_start()
988 static void uvc_video_stats_stop(struct uvc_streaming *stream) in uvc_video_stats_stop() argument
990 stream->stats.stream.stop_ts = ktime_get(); in uvc_video_stats_stop()
1032 static int uvc_video_decode_start(struct uvc_streaming *stream, in uvc_video_decode_start() argument
1043 stream->stats.frame.nb_invalid++; in uvc_video_decode_start()
1052 if (stream->last_fid != fid) { in uvc_video_decode_start()
1053 stream->sequence++; in uvc_video_decode_start()
1054 if (stream->sequence) in uvc_video_decode_start()
1055 uvc_video_stats_update(stream); in uvc_video_decode_start()
1058 uvc_video_clock_decode(stream, buf, data, len); in uvc_video_decode_start()
1059 uvc_video_stats_decode(stream, data, len); in uvc_video_decode_start()
1065 stream->last_fid = fid; in uvc_video_decode_start()
1071 uvc_dbg(stream->dev, FRAME, in uvc_video_decode_start()
1076 /* Synchronize to the input stream by waiting for the FID bit to be in uvc_video_decode_start()
1078 * stream->last_fid is initialized to -1, so the first isochronous in uvc_video_decode_start()
1081 * If the device doesn't toggle the FID bit, invert stream->last_fid in uvc_video_decode_start()
1085 if (fid == stream->last_fid) { in uvc_video_decode_start()
1086 uvc_dbg(stream->dev, FRAME, in uvc_video_decode_start()
1088 if ((stream->dev->quirks & UVC_QUIRK_STREAM_NO_FID) && in uvc_video_decode_start()
1090 stream->last_fid ^= UVC_STREAM_FID; in uvc_video_decode_start()
1095 buf->buf.sequence = stream->sequence; in uvc_video_decode_start()
1109 * stream->last_fid is initialized to -1, so the first isochronous in uvc_video_decode_start()
1117 if (fid != stream->last_fid && buf->bytesused != 0) { in uvc_video_decode_start()
1118 uvc_dbg(stream->dev, FRAME, in uvc_video_decode_start()
1124 stream->last_fid = fid; in uvc_video_decode_start()
1130 struct uvc_streaming *stream) in uvc_stream_dir() argument
1132 if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) in uvc_stream_dir()
1138 static inline struct device *uvc_stream_to_dmadev(struct uvc_streaming *stream) in uvc_stream_to_dmadev() argument
1140 return bus_to_hcd(stream->dev->udev->bus)->self.sysdev; in uvc_stream_to_dmadev()
1146 dma_sync_sgtable_for_device(uvc_stream_to_dmadev(uvc_urb->stream), in uvc_submit_urb()
1148 uvc_stream_dir(uvc_urb->stream)); in uvc_submit_urb()
1175 dev_err(&uvc_urb->stream->intf->dev, in uvc_video_copy_data_work()
1203 uvc_dbg(uvc_urb->stream->dev, FRAME, in uvc_video_decode_data()
1212 static void uvc_video_decode_end(struct uvc_streaming *stream, in uvc_video_decode_end() argument
1217 uvc_dbg(stream->dev, FRAME, "Frame complete (EOF found)\n"); in uvc_video_decode_end()
1219 uvc_dbg(stream->dev, FRAME, "EOF in empty payload\n"); in uvc_video_decode_end()
1221 if (stream->dev->quirks & UVC_QUIRK_STREAM_NO_FID) in uvc_video_decode_end()
1222 stream->last_fid ^= UVC_STREAM_FID; in uvc_video_decode_end()
1237 static int uvc_video_encode_header(struct uvc_streaming *stream, in uvc_video_encode_header() argument
1242 | (stream->last_fid & UVC_STREAM_FID); in uvc_video_encode_header()
1246 static int uvc_video_encode_data(struct uvc_streaming *stream, in uvc_video_encode_data() argument
1249 struct uvc_video_queue *queue = &stream->queue; in uvc_video_encode_data()
1256 nbytes = min(stream->bulk.max_payload_size - stream->bulk.payload_size, in uvc_video_encode_data()
1280 static void uvc_video_decode_meta(struct uvc_streaming *stream, in uvc_video_decode_meta() argument
1314 if (stream->meta.format == V4L2_META_FMT_UVC) in uvc_video_decode_meta()
1318 !memcmp(scr, stream->clock.last_scr, 6))) in uvc_video_decode_meta()
1324 sof = usb_get_current_frame_number(stream->dev->udev); in uvc_video_decode_meta()
1330 memcpy(stream->clock.last_scr, scr, 6); in uvc_video_decode_meta()
1335 uvc_dbg(stream->dev, FRAME, in uvc_video_decode_meta()
1351 static void uvc_video_validate_buffer(const struct uvc_streaming *stream, in uvc_video_validate_buffer() argument
1354 if (stream->ctrl.dwMaxVideoFrameSize != buf->bytesused && in uvc_video_validate_buffer()
1355 !(stream->cur_format->flags & UVC_FMT_FLAG_COMPRESSED)) in uvc_video_validate_buffer()
1363 static void uvc_video_next_buffers(struct uvc_streaming *stream, in uvc_video_next_buffers() argument
1366 uvc_video_validate_buffer(stream, *video_buf); in uvc_video_next_buffers()
1379 *meta_buf = uvc_queue_next_buffer(&stream->meta.queue, in uvc_video_next_buffers()
1382 *video_buf = uvc_queue_next_buffer(&stream->queue, *video_buf); in uvc_video_next_buffers()
1389 struct uvc_streaming *stream = uvc_urb->stream; in uvc_video_decode_isoc() local
1395 uvc_dbg(stream->dev, FRAME, in uvc_video_decode_isoc()
1407 ret = uvc_video_decode_start(stream, buf, mem, in uvc_video_decode_isoc()
1410 uvc_video_next_buffers(stream, &buf, &meta_buf); in uvc_video_decode_isoc()
1416 uvc_video_decode_meta(stream, meta_buf, mem, ret); in uvc_video_decode_isoc()
1423 uvc_video_decode_end(stream, buf, mem, in uvc_video_decode_isoc()
1427 uvc_video_next_buffers(stream, &buf, &meta_buf); in uvc_video_decode_isoc()
1435 struct uvc_streaming *stream = uvc_urb->stream; in uvc_video_decode_bulk() local
1443 if (urb->actual_length == 0 && stream->bulk.header_size == 0) in uvc_video_decode_bulk()
1448 stream->bulk.payload_size += len; in uvc_video_decode_bulk()
1453 if (stream->bulk.header_size == 0 && !stream->bulk.skip_payload) { in uvc_video_decode_bulk()
1455 ret = uvc_video_decode_start(stream, buf, mem, len); in uvc_video_decode_bulk()
1457 uvc_video_next_buffers(stream, &buf, &meta_buf); in uvc_video_decode_bulk()
1462 stream->bulk.skip_payload = 1; in uvc_video_decode_bulk()
1464 memcpy(stream->bulk.header, mem, ret); in uvc_video_decode_bulk()
1465 stream->bulk.header_size = ret; in uvc_video_decode_bulk()
1467 uvc_video_decode_meta(stream, meta_buf, mem, ret); in uvc_video_decode_bulk()
1480 if (!stream->bulk.skip_payload && buf != NULL) in uvc_video_decode_bulk()
1487 stream->bulk.payload_size >= stream->bulk.max_payload_size) { in uvc_video_decode_bulk()
1488 if (!stream->bulk.skip_payload && buf != NULL) { in uvc_video_decode_bulk()
1489 uvc_video_decode_end(stream, buf, stream->bulk.header, in uvc_video_decode_bulk()
1490 stream->bulk.payload_size); in uvc_video_decode_bulk()
1492 uvc_video_next_buffers(stream, &buf, &meta_buf); in uvc_video_decode_bulk()
1495 stream->bulk.header_size = 0; in uvc_video_decode_bulk()
1496 stream->bulk.skip_payload = 0; in uvc_video_decode_bulk()
1497 stream->bulk.payload_size = 0; in uvc_video_decode_bulk()
1505 struct uvc_streaming *stream = uvc_urb->stream; in uvc_video_encode_bulk() local
1508 int len = stream->urb_size, ret; in uvc_video_encode_bulk()
1516 if (stream->bulk.header_size == 0) { in uvc_video_encode_bulk()
1517 ret = uvc_video_encode_header(stream, buf, mem, len); in uvc_video_encode_bulk()
1518 stream->bulk.header_size = ret; in uvc_video_encode_bulk()
1519 stream->bulk.payload_size += ret; in uvc_video_encode_bulk()
1525 ret = uvc_video_encode_data(stream, buf, mem, len); in uvc_video_encode_bulk()
1527 stream->bulk.payload_size += ret; in uvc_video_encode_bulk()
1530 if (buf->bytesused == stream->queue.buf_used || in uvc_video_encode_bulk()
1531 stream->bulk.payload_size == stream->bulk.max_payload_size) { in uvc_video_encode_bulk()
1532 if (buf->bytesused == stream->queue.buf_used) { in uvc_video_encode_bulk()
1533 stream->queue.buf_used = 0; in uvc_video_encode_bulk()
1535 buf->buf.sequence = ++stream->sequence; in uvc_video_encode_bulk()
1536 uvc_queue_next_buffer(&stream->queue, buf); in uvc_video_encode_bulk()
1537 stream->last_fid ^= UVC_STREAM_FID; in uvc_video_encode_bulk()
1540 stream->bulk.header_size = 0; in uvc_video_encode_bulk()
1541 stream->bulk.payload_size = 0; in uvc_video_encode_bulk()
1544 urb->transfer_buffer_length = stream->urb_size - len; in uvc_video_encode_bulk()
1550 struct uvc_streaming *stream = uvc_urb->stream; in uvc_video_complete() local
1551 struct uvc_video_queue *queue = &stream->queue; in uvc_video_complete()
1552 struct uvc_video_queue *qmeta = &stream->meta.queue; in uvc_video_complete()
1553 struct vb2_queue *vb2_qmeta = stream->meta.vdev.queue; in uvc_video_complete()
1564 dev_warn(&stream->intf->dev, in uvc_video_complete()
1569 if (stream->frozen) in uvc_video_complete()
1594 dma_sync_sgtable_for_cpu(uvc_stream_to_dmadev(uvc_urb->stream), in uvc_video_complete()
1595 uvc_urb->sgt, uvc_stream_dir(stream)); in uvc_video_complete()
1597 uvc_urb->stream->urb_size); in uvc_video_complete()
1603 stream->decode(uvc_urb, buf, buf_meta); in uvc_video_complete()
1609 dev_err(&stream->intf->dev, in uvc_video_complete()
1614 queue_work(stream->async_wq, &uvc_urb->work); in uvc_video_complete()
1620 static void uvc_free_urb_buffers(struct uvc_streaming *stream) in uvc_free_urb_buffers() argument
1622 struct device *dma_dev = uvc_stream_to_dmadev(stream); in uvc_free_urb_buffers()
1625 for_each_uvc_urb(uvc_urb, stream) { in uvc_free_urb_buffers()
1630 dma_free_noncontiguous(dma_dev, stream->urb_size, uvc_urb->sgt, in uvc_free_urb_buffers()
1631 uvc_stream_dir(stream)); in uvc_free_urb_buffers()
1637 stream->urb_size = 0; in uvc_free_urb_buffers()
1640 static bool uvc_alloc_urb_buffer(struct uvc_streaming *stream, in uvc_alloc_urb_buffer() argument
1643 struct device *dma_dev = uvc_stream_to_dmadev(stream); in uvc_alloc_urb_buffer()
1645 uvc_urb->sgt = dma_alloc_noncontiguous(dma_dev, stream->urb_size, in uvc_alloc_urb_buffer()
1646 uvc_stream_dir(stream), in uvc_alloc_urb_buffer()
1652 uvc_urb->buffer = dma_vmap_noncontiguous(dma_dev, stream->urb_size, in uvc_alloc_urb_buffer()
1655 dma_free_noncontiguous(dma_dev, stream->urb_size, in uvc_alloc_urb_buffer()
1657 uvc_stream_dir(stream)); in uvc_alloc_urb_buffer()
1676 static int uvc_alloc_urb_buffers(struct uvc_streaming *stream, in uvc_alloc_urb_buffers() argument
1683 if (stream->urb_size) in uvc_alloc_urb_buffers()
1684 return stream->urb_size / psize; in uvc_alloc_urb_buffers()
1695 stream->urb_size = psize * npackets; in uvc_alloc_urb_buffers()
1698 struct uvc_urb *uvc_urb = &stream->uvc_urb[i]; in uvc_alloc_urb_buffers()
1700 if (!uvc_alloc_urb_buffer(stream, uvc_urb, gfp_flags)) { in uvc_alloc_urb_buffers()
1701 uvc_free_urb_buffers(stream); in uvc_alloc_urb_buffers()
1705 uvc_urb->stream = stream; in uvc_alloc_urb_buffers()
1709 uvc_dbg(stream->dev, VIDEO, in uvc_alloc_urb_buffers()
1716 uvc_dbg(stream->dev, VIDEO, in uvc_alloc_urb_buffers()
1725 static void uvc_video_stop_transfer(struct uvc_streaming *stream, in uvc_video_stop_transfer() argument
1730 uvc_video_stats_stop(stream); in uvc_video_stop_transfer()
1737 for_each_uvc_urb(uvc_urb, stream) in uvc_video_stop_transfer()
1740 flush_workqueue(stream->async_wq); in uvc_video_stop_transfer()
1742 for_each_uvc_urb(uvc_urb, stream) { in uvc_video_stop_transfer()
1748 uvc_free_urb_buffers(stream); in uvc_video_stop_transfer()
1781 static int uvc_init_video_isoc(struct uvc_streaming *stream, in uvc_init_video_isoc() argument
1790 psize = uvc_endpoint_max_bpi(stream->dev->udev, ep); in uvc_init_video_isoc()
1791 size = stream->ctrl.dwMaxVideoFrameSize; in uvc_init_video_isoc()
1793 npackets = uvc_alloc_urb_buffers(stream, size, psize, gfp_flags); in uvc_init_video_isoc()
1799 for_each_uvc_urb(uvc_urb, stream) { in uvc_init_video_isoc()
1802 uvc_video_stop_transfer(stream, 1); in uvc_init_video_isoc()
1806 urb->dev = stream->dev->udev; in uvc_init_video_isoc()
1808 urb->pipe = usb_rcvisocpipe(stream->dev->udev, in uvc_init_video_isoc()
1833 static int uvc_init_video_bulk(struct uvc_streaming *stream, in uvc_init_video_bulk() argument
1843 size = stream->ctrl.dwMaxPayloadTransferSize; in uvc_init_video_bulk()
1844 stream->bulk.max_payload_size = size; in uvc_init_video_bulk()
1846 npackets = uvc_alloc_urb_buffers(stream, size, psize, gfp_flags); in uvc_init_video_bulk()
1853 pipe = usb_rcvbulkpipe(stream->dev->udev, in uvc_init_video_bulk()
1856 pipe = usb_sndbulkpipe(stream->dev->udev, in uvc_init_video_bulk()
1859 if (stream->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) in uvc_init_video_bulk()
1862 for_each_uvc_urb(uvc_urb, stream) { in uvc_init_video_bulk()
1865 uvc_video_stop_transfer(stream, 1); in uvc_init_video_bulk()
1869 usb_fill_bulk_urb(urb, stream->dev->udev, pipe, uvc_urb->buffer, in uvc_init_video_bulk()
1883 static int uvc_video_start_transfer(struct uvc_streaming *stream, in uvc_video_start_transfer() argument
1886 struct usb_interface *intf = stream->intf; in uvc_video_start_transfer()
1892 stream->sequence = -1; in uvc_video_start_transfer()
1893 stream->last_fid = -1; in uvc_video_start_transfer()
1894 stream->bulk.header_size = 0; in uvc_video_start_transfer()
1895 stream->bulk.skip_payload = 0; in uvc_video_start_transfer()
1896 stream->bulk.payload_size = 0; in uvc_video_start_transfer()
1898 uvc_video_stats_start(stream); in uvc_video_start_transfer()
1905 int intfnum = stream->intfnum; in uvc_video_start_transfer()
1908 bandwidth = stream->ctrl.dwMaxPayloadTransferSize; in uvc_video_start_transfer()
1911 uvc_dbg(stream->dev, VIDEO, in uvc_video_start_transfer()
1915 uvc_dbg(stream->dev, VIDEO, in uvc_video_start_transfer()
1926 stream->header.bEndpointAddress); in uvc_video_start_transfer()
1931 psize = uvc_endpoint_max_bpi(stream->dev->udev, ep); in uvc_video_start_transfer()
1940 uvc_dbg(stream->dev, VIDEO, in uvc_video_start_transfer()
1945 uvc_dbg(stream->dev, VIDEO, in uvc_video_start_transfer()
1949 ret = usb_set_interface(stream->dev->udev, intfnum, altsetting); in uvc_video_start_transfer()
1953 ret = uvc_init_video_isoc(stream, best_ep, gfp_flags); in uvc_video_start_transfer()
1957 stream->header.bEndpointAddress); in uvc_video_start_transfer()
1961 ret = uvc_init_video_bulk(stream, ep, gfp_flags); in uvc_video_start_transfer()
1968 for_each_uvc_urb(uvc_urb, stream) { in uvc_video_start_transfer()
1971 dev_err(&stream->intf->dev, in uvc_video_start_transfer()
1974 uvc_video_stop_transfer(stream, 1); in uvc_video_start_transfer()
1982 if (stream->dev->quirks & UVC_QUIRK_RESTORE_CTRLS_ON_INIT) in uvc_video_start_transfer()
1983 uvc_ctrl_restore_values(stream->dev); in uvc_video_start_transfer()
1999 int uvc_video_suspend(struct uvc_streaming *stream) in uvc_video_suspend() argument
2001 if (!uvc_queue_streaming(&stream->queue)) in uvc_video_suspend()
2004 stream->frozen = 1; in uvc_video_suspend()
2005 uvc_video_stop_transfer(stream, 0); in uvc_video_suspend()
2006 usb_set_interface(stream->dev->udev, stream->intfnum, 0); in uvc_video_suspend()
2018 int uvc_video_resume(struct uvc_streaming *stream, int reset) in uvc_video_resume() argument
2028 usb_set_interface(stream->dev->udev, stream->intfnum, 0); in uvc_video_resume()
2030 stream->frozen = 0; in uvc_video_resume()
2032 uvc_video_clock_reset(stream); in uvc_video_resume()
2034 if (!uvc_queue_streaming(&stream->queue)) in uvc_video_resume()
2037 ret = uvc_commit_video(stream, &stream->ctrl); in uvc_video_resume()
2041 return uvc_video_start_transfer(stream, GFP_NOIO); in uvc_video_resume()
2058 int uvc_video_init(struct uvc_streaming *stream) in uvc_video_init() argument
2060 struct uvc_streaming_control *probe = &stream->ctrl; in uvc_video_init()
2067 if (stream->nformats == 0) { in uvc_video_init()
2068 dev_info(&stream->intf->dev, in uvc_video_init()
2073 atomic_set(&stream->active, 0); in uvc_video_init()
2080 usb_set_interface(stream->dev->udev, stream->intfnum, 0); in uvc_video_init()
2087 if (uvc_get_video_ctrl(stream, probe, 1, UVC_GET_DEF) == 0) in uvc_video_init()
2088 uvc_set_video_ctrl(stream, probe, 1); in uvc_video_init()
2095 ret = uvc_get_video_ctrl(stream, probe, 1, UVC_GET_CUR); in uvc_video_init()
2102 for (i = stream->nformats; i > 0; --i) { in uvc_video_init()
2103 format = &stream->format[i-1]; in uvc_video_init()
2109 dev_info(&stream->intf->dev, in uvc_video_init()
2114 /* Zero bFrameIndex might be correct. Stream-based formats (including in uvc_video_init()
2128 stream->def_format = format; in uvc_video_init()
2129 stream->cur_format = format; in uvc_video_init()
2130 stream->cur_frame = frame; in uvc_video_init()
2133 if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { in uvc_video_init()
2134 if (stream->dev->quirks & UVC_QUIRK_BUILTIN_ISIGHT) in uvc_video_init()
2135 stream->decode = uvc_video_decode_isight; in uvc_video_init()
2136 else if (stream->intf->num_altsetting > 1) in uvc_video_init()
2137 stream->decode = uvc_video_decode_isoc; in uvc_video_init()
2139 stream->decode = uvc_video_decode_bulk; in uvc_video_init()
2141 if (stream->intf->num_altsetting == 1) in uvc_video_init()
2142 stream->decode = uvc_video_encode_bulk; in uvc_video_init()
2144 dev_info(&stream->intf->dev, in uvc_video_init()
2151 for_each_uvc_urb(uvc_urb, stream) in uvc_video_init()
2157 int uvc_video_start_streaming(struct uvc_streaming *stream) in uvc_video_start_streaming() argument
2161 ret = uvc_video_clock_init(stream); in uvc_video_start_streaming()
2166 ret = uvc_commit_video(stream, &stream->ctrl); in uvc_video_start_streaming()
2170 ret = uvc_video_start_transfer(stream, GFP_KERNEL); in uvc_video_start_streaming()
2177 usb_set_interface(stream->dev->udev, stream->intfnum, 0); in uvc_video_start_streaming()
2179 uvc_video_clock_cleanup(stream); in uvc_video_start_streaming()
2184 void uvc_video_stop_streaming(struct uvc_streaming *stream) in uvc_video_stop_streaming() argument
2186 uvc_video_stop_transfer(stream, 1); in uvc_video_stop_streaming()
2188 if (stream->intf->num_altsetting > 1) { in uvc_video_stop_streaming()
2189 usb_set_interface(stream->dev->udev, stream->intfnum, 0); in uvc_video_stop_streaming()
2192 * when the video stream is stopped. Windows sends a in uvc_video_stop_streaming()
2196 unsigned int epnum = stream->header.bEndpointAddress in uvc_video_stop_streaming()
2198 unsigned int dir = stream->header.bEndpointAddress in uvc_video_stop_streaming()
2202 pipe = usb_sndbulkpipe(stream->dev->udev, epnum) | dir; in uvc_video_stop_streaming()
2203 usb_clear_halt(stream->dev->udev, pipe); in uvc_video_stop_streaming()
2206 uvc_video_clock_cleanup(stream); in uvc_video_stop_streaming()