Lines Matching full:stream
163 static void uvc_fixup_video_ctrl(struct uvc_streaming *stream, in uvc_fixup_video_ctrl() argument
182 if (usb_match_one_id(stream->dev->intf, &elgato_cam_link_4k) && in uvc_fixup_video_ctrl()
186 uvc_dbg(stream->dev, VIDEO, in uvc_fixup_video_ctrl()
194 for (i = 0; i < stream->nformats; ++i) { in uvc_fixup_video_ctrl()
195 if (stream->formats[i].index == ctrl->bFormatIndex) { in uvc_fixup_video_ctrl()
196 format = &stream->formats[i]; in uvc_fixup_video_ctrl()
216 stream->dev->uvc_version < 0x0110)) in uvc_fixup_video_ctrl()
230 stream->dev->quirks & UVC_QUIRK_FIX_BANDWIDTH && in uvc_fixup_video_ctrl()
231 stream->intf->num_altsetting > 1) { in uvc_fixup_video_ctrl()
249 if (stream->dev->udev->speed >= USB_SPEED_HIGH) in uvc_fixup_video_ctrl()
267 static size_t uvc_video_ctrl_size(struct uvc_streaming *stream) in uvc_video_ctrl_size() argument
273 if (stream->dev->uvc_version < 0x0110) in uvc_video_ctrl_size()
275 else if (stream->dev->uvc_version < 0x0150) in uvc_video_ctrl_size()
281 static int uvc_get_video_ctrl(struct uvc_streaming *stream, in uvc_get_video_ctrl() argument
284 u16 size = uvc_video_ctrl_size(stream); in uvc_get_video_ctrl()
288 if ((stream->dev->quirks & UVC_QUIRK_PROBE_DEF) && in uvc_get_video_ctrl()
296 ret = __uvc_query_ctrl(stream->dev, query, 0, stream->intfnum, in uvc_get_video_ctrl()
306 uvc_warn_once(stream->dev, UVC_WARN_MINMAX, "UVC non " in uvc_get_video_ctrl()
319 uvc_warn_once(stream->dev, UVC_WARN_PROBE_DEF, "UVC non " in uvc_get_video_ctrl()
325 dev_err(&stream->intf->dev, in uvc_get_video_ctrl()
352 ctrl->dwClockFrequency = stream->dev->clock_frequency; in uvc_get_video_ctrl()
364 uvc_fixup_video_ctrl(stream, ctrl); in uvc_get_video_ctrl()
372 static int uvc_set_video_ctrl(struct uvc_streaming *stream, in uvc_set_video_ctrl() argument
375 u16 size = uvc_video_ctrl_size(stream); in uvc_set_video_ctrl()
403 ret = __uvc_query_ctrl(stream->dev, UVC_SET_CUR, 0, stream->intfnum, in uvc_set_video_ctrl()
407 dev_err(&stream->intf->dev, in uvc_set_video_ctrl()
417 int uvc_probe_video(struct uvc_streaming *stream, in uvc_probe_video() argument
432 ret = uvc_set_video_ctrl(stream, probe, 1); in uvc_probe_video()
437 if (!(stream->dev->quirks & UVC_QUIRK_PROBE_MINMAX)) { in uvc_probe_video()
438 ret = uvc_get_video_ctrl(stream, &probe_min, 1, UVC_GET_MIN); in uvc_probe_video()
441 ret = uvc_get_video_ctrl(stream, &probe_max, 1, UVC_GET_MAX); in uvc_probe_video()
449 ret = uvc_set_video_ctrl(stream, probe, 1); in uvc_probe_video()
452 ret = uvc_get_video_ctrl(stream, probe, 1, UVC_GET_CUR); in uvc_probe_video()
456 if (stream->intf->num_altsetting == 1) in uvc_probe_video()
459 if (probe->dwMaxPayloadTransferSize <= stream->maxpsize) in uvc_probe_video()
462 if (stream->dev->quirks & UVC_QUIRK_PROBE_MINMAX) { in uvc_probe_video()
478 static int uvc_commit_video(struct uvc_streaming *stream, in uvc_commit_video() argument
481 return uvc_set_video_ctrl(stream, probe, 0); in uvc_commit_video()
532 uvc_video_clock_decode(struct uvc_streaming *stream, struct uvc_buffer *buf, in uvc_video_clock_decode() argument
584 if (sample.dev_sof == stream->clock.last_sof) in uvc_video_clock_decode()
615 sample.host_sof = usb_get_current_frame_number(stream->dev->udev); in uvc_video_clock_decode()
624 if (stream->dev->quirks & UVC_QUIRK_INVALID_DEVICE_SOF) in uvc_video_clock_decode()
649 if (stream->clock.sof_offset == (u16)-1) { in uvc_video_clock_decode()
652 stream->clock.sof_offset = delta_sof; in uvc_video_clock_decode()
654 stream->clock.sof_offset = 0; in uvc_video_clock_decode()
657 sample.dev_sof = (sample.dev_sof + stream->clock.sof_offset) & 2047; in uvc_video_clock_decode()
658 uvc_video_clock_add_sample(&stream->clock, &sample); in uvc_video_clock_decode()
659 stream->clock.last_sof = sample.dev_sof; in uvc_video_clock_decode()
780 void uvc_video_clock_update(struct uvc_streaming *stream, in uvc_video_clock_update() argument
784 struct uvc_clock *clock = &stream->clock; in uvc_video_clock_update()
845 uvc_dbg(stream->dev, CLOCK, in uvc_video_clock_update()
847 stream->dev->name, buf->pts, in uvc_video_clock_update()
881 uvc_dbg(stream->dev, CLOCK, in uvc_video_clock_update()
883 stream->dev->name, in uvc_video_clock_update()
897 * Stream statistics
900 static void uvc_video_stats_decode(struct uvc_streaming *stream, in uvc_video_stats_decode() argument
910 if (stream->stats.stream.nb_frames == 0 && in uvc_video_stats_decode()
911 stream->stats.frame.nb_packets == 0) in uvc_video_stats_decode()
912 stream->stats.stream.start_ts = ktime_get(); in uvc_video_stats_decode()
935 stream->stats.frame.nb_invalid++; in uvc_video_stats_decode()
949 if (has_pts && stream->stats.frame.nb_pts) { in uvc_video_stats_decode()
950 if (stream->stats.frame.pts != pts) { in uvc_video_stats_decode()
951 stream->stats.frame.nb_pts_diffs++; in uvc_video_stats_decode()
952 stream->stats.frame.last_pts_diff = in uvc_video_stats_decode()
953 stream->stats.frame.nb_packets; in uvc_video_stats_decode()
958 stream->stats.frame.nb_pts++; in uvc_video_stats_decode()
959 stream->stats.frame.pts = pts; in uvc_video_stats_decode()
966 if (stream->stats.frame.size == 0) { in uvc_video_stats_decode()
968 stream->stats.frame.has_initial_pts = has_pts; in uvc_video_stats_decode()
970 stream->stats.frame.has_early_pts = true; in uvc_video_stats_decode()
974 if (has_scr && stream->stats.frame.nb_scr) { in uvc_video_stats_decode()
975 if (stream->stats.frame.scr_stc != scr_stc) in uvc_video_stats_decode()
976 stream->stats.frame.nb_scr_diffs++; in uvc_video_stats_decode()
981 if (stream->stats.stream.nb_frames > 0 || in uvc_video_stats_decode()
982 stream->stats.frame.nb_scr > 0) in uvc_video_stats_decode()
983 stream->stats.stream.scr_sof_count += in uvc_video_stats_decode()
984 (scr_sof - stream->stats.stream.scr_sof) % 2048; in uvc_video_stats_decode()
985 stream->stats.stream.scr_sof = scr_sof; in uvc_video_stats_decode()
987 stream->stats.frame.nb_scr++; in uvc_video_stats_decode()
988 stream->stats.frame.scr_stc = scr_stc; in uvc_video_stats_decode()
989 stream->stats.frame.scr_sof = scr_sof; in uvc_video_stats_decode()
991 if (scr_sof < stream->stats.stream.min_sof) in uvc_video_stats_decode()
992 stream->stats.stream.min_sof = scr_sof; in uvc_video_stats_decode()
993 if (scr_sof > stream->stats.stream.max_sof) in uvc_video_stats_decode()
994 stream->stats.stream.max_sof = scr_sof; in uvc_video_stats_decode()
998 if (stream->stats.frame.size == 0 && len > header_size) in uvc_video_stats_decode()
999 stream->stats.frame.first_data = stream->stats.frame.nb_packets; in uvc_video_stats_decode()
1002 stream->stats.frame.size += len - header_size; in uvc_video_stats_decode()
1005 stream->stats.frame.nb_packets++; in uvc_video_stats_decode()
1007 stream->stats.frame.nb_empty++; in uvc_video_stats_decode()
1010 stream->stats.frame.nb_errors++; in uvc_video_stats_decode()
1013 static void uvc_video_stats_update(struct uvc_streaming *stream) in uvc_video_stats_update() argument
1015 struct uvc_stats_frame *frame = &stream->stats.frame; in uvc_video_stats_update()
1017 uvc_dbg(stream->dev, STATS, in uvc_video_stats_update()
1019 stream->sequence, frame->first_data, in uvc_video_stats_update()
1027 stream->stats.stream.nb_frames++; in uvc_video_stats_update()
1028 stream->stats.stream.nb_packets += stream->stats.frame.nb_packets; in uvc_video_stats_update()
1029 stream->stats.stream.nb_empty += stream->stats.frame.nb_empty; in uvc_video_stats_update()
1030 stream->stats.stream.nb_errors += stream->stats.frame.nb_errors; in uvc_video_stats_update()
1031 stream->stats.stream.nb_invalid += stream->stats.frame.nb_invalid; in uvc_video_stats_update()
1034 stream->stats.stream.nb_pts_early++; in uvc_video_stats_update()
1036 stream->stats.stream.nb_pts_initial++; in uvc_video_stats_update()
1038 stream->stats.stream.nb_pts_constant++; in uvc_video_stats_update()
1040 stream->stats.stream.nb_scr_count_ok++; in uvc_video_stats_update()
1042 stream->stats.stream.nb_scr_diffs_ok++; in uvc_video_stats_update()
1044 memset(&stream->stats.frame, 0, sizeof(stream->stats.frame)); in uvc_video_stats_update()
1047 size_t uvc_video_stats_dump(struct uvc_streaming *stream, char *buf, in uvc_video_stats_dump() argument
1058 duration = ktime_ms_delta(stream->stats.stream.stop_ts, in uvc_video_stats_dump()
1059 stream->stats.stream.start_ts); in uvc_video_stats_dump()
1061 scr_sof_freq = stream->stats.stream.scr_sof_count * 1000 in uvc_video_stats_dump()
1069 stream->stats.stream.nb_frames, in uvc_video_stats_dump()
1070 stream->stats.stream.nb_packets, in uvc_video_stats_dump()
1071 stream->stats.stream.nb_empty, in uvc_video_stats_dump()
1072 stream->stats.stream.nb_errors, in uvc_video_stats_dump()
1073 stream->stats.stream.nb_invalid); in uvc_video_stats_dump()
1076 stream->stats.stream.nb_pts_early, in uvc_video_stats_dump()
1077 stream->stats.stream.nb_pts_initial, in uvc_video_stats_dump()
1078 stream->stats.stream.nb_pts_constant); in uvc_video_stats_dump()
1081 stream->stats.stream.nb_scr_count_ok, in uvc_video_stats_dump()
1082 stream->stats.stream.nb_scr_diffs_ok); in uvc_video_stats_dump()
1085 stream->stats.stream.min_sof, in uvc_video_stats_dump()
1086 stream->stats.stream.max_sof, in uvc_video_stats_dump()
1092 static void uvc_video_stats_start(struct uvc_streaming *stream) in uvc_video_stats_start() argument
1094 memset(&stream->stats, 0, sizeof(stream->stats)); in uvc_video_stats_start()
1095 stream->stats.stream.min_sof = 2048; in uvc_video_stats_start()
1098 static void uvc_video_stats_stop(struct uvc_streaming *stream) in uvc_video_stats_stop() argument
1100 stream->stats.stream.stop_ts = ktime_get(); in uvc_video_stats_stop()
1143 static int uvc_video_decode_start(struct uvc_streaming *stream, in uvc_video_decode_start() argument
1156 stream->stats.frame.nb_invalid++; in uvc_video_decode_start()
1167 if (stream->last_fid != fid) { in uvc_video_decode_start()
1168 stream->sequence++; in uvc_video_decode_start()
1169 if (stream->sequence) in uvc_video_decode_start()
1170 uvc_video_stats_update(stream); in uvc_video_decode_start()
1173 uvc_video_clock_decode(stream, buf, data, len); in uvc_video_decode_start()
1174 uvc_video_stats_decode(stream, data, len); in uvc_video_decode_start()
1181 stream->last_fid = fid; in uvc_video_decode_start()
1187 uvc_dbg(stream->dev, FRAME, in uvc_video_decode_start()
1193 * Synchronize to the input stream by waiting for the FID bit to be in uvc_video_decode_start()
1195 * stream->last_fid is initialized to -1, so the first isochronous in uvc_video_decode_start()
1198 * If the device doesn't toggle the FID bit, invert stream->last_fid in uvc_video_decode_start()
1202 if (fid == stream->last_fid) { in uvc_video_decode_start()
1203 uvc_dbg(stream->dev, FRAME, in uvc_video_decode_start()
1205 if ((stream->dev->quirks & UVC_QUIRK_STREAM_NO_FID) && in uvc_video_decode_start()
1207 stream->last_fid ^= UVC_STREAM_FID; in uvc_video_decode_start()
1212 buf->buf.sequence = stream->sequence; in uvc_video_decode_start()
1227 * stream->last_fid is initialized to -1, so the first isochronous in uvc_video_decode_start()
1235 if (fid != stream->last_fid && buf->bytesused != 0) { in uvc_video_decode_start()
1236 uvc_dbg(stream->dev, FRAME, in uvc_video_decode_start()
1244 * another non-MJPEG stream), are known to lose the EOF packet for a frame. in uvc_video_decode_start()
1249 if (stream->dev->quirks & UVC_QUIRK_MJPEG_NO_EOF && in uvc_video_decode_start()
1250 (stream->cur_format->fcc == V4L2_PIX_FMT_MJPEG || in uvc_video_decode_start()
1251 stream->cur_format->fcc == V4L2_PIX_FMT_JPEG)) { in uvc_video_decode_start()
1259 stream->last_fid ^= UVC_STREAM_FID; in uvc_video_decode_start()
1264 stream->last_fid = fid; in uvc_video_decode_start()
1270 struct uvc_streaming *stream) in uvc_stream_dir() argument
1272 if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) in uvc_stream_dir()
1278 static inline struct device *uvc_stream_to_dmadev(struct uvc_streaming *stream) in uvc_stream_to_dmadev() argument
1280 return bus_to_hcd(stream->dev->udev->bus)->self.sysdev; in uvc_stream_to_dmadev()
1286 dma_sync_sgtable_for_device(uvc_stream_to_dmadev(uvc_urb->stream), in uvc_submit_urb()
1288 uvc_stream_dir(uvc_urb->stream)); in uvc_submit_urb()
1315 dev_err(&uvc_urb->stream->intf->dev, in uvc_video_copy_data_work()
1343 uvc_dbg(uvc_urb->stream->dev, FRAME, in uvc_video_decode_data()
1352 static void uvc_video_decode_end(struct uvc_streaming *stream, in uvc_video_decode_end() argument
1357 uvc_dbg(stream->dev, FRAME, "Frame complete (EOF found)\n"); in uvc_video_decode_end()
1359 uvc_dbg(stream->dev, FRAME, "EOF in empty payload\n"); in uvc_video_decode_end()
1361 if (stream->dev->quirks & UVC_QUIRK_STREAM_NO_FID) in uvc_video_decode_end()
1362 stream->last_fid ^= UVC_STREAM_FID; in uvc_video_decode_end()
1378 static int uvc_video_encode_header(struct uvc_streaming *stream, in uvc_video_encode_header() argument
1383 | (stream->last_fid & UVC_STREAM_FID); in uvc_video_encode_header()
1387 static int uvc_video_encode_data(struct uvc_streaming *stream, in uvc_video_encode_data() argument
1390 struct uvc_video_queue *queue = &stream->queue; in uvc_video_encode_data()
1397 nbytes = min(stream->bulk.max_payload_size - stream->bulk.payload_size, in uvc_video_encode_data()
1421 static void uvc_video_decode_meta(struct uvc_streaming *stream, in uvc_video_decode_meta() argument
1455 if (stream->meta.format == V4L2_META_FMT_UVC) in uvc_video_decode_meta()
1459 !memcmp(scr, stream->clock.last_scr, 6))) in uvc_video_decode_meta()
1465 sof = usb_get_current_frame_number(stream->dev->udev); in uvc_video_decode_meta()
1471 memcpy(stream->clock.last_scr, scr, 6); in uvc_video_decode_meta()
1478 uvc_dbg(stream->dev, FRAME, in uvc_video_decode_meta()
1494 static void uvc_video_validate_buffer(const struct uvc_streaming *stream, in uvc_video_validate_buffer() argument
1497 if (stream->ctrl.dwMaxVideoFrameSize != buf->bytesused && in uvc_video_validate_buffer()
1498 !(stream->cur_format->flags & UVC_FMT_FLAG_COMPRESSED)) in uvc_video_validate_buffer()
1506 static void uvc_video_next_buffers(struct uvc_streaming *stream, in uvc_video_next_buffers() argument
1509 uvc_video_validate_buffer(stream, *video_buf); in uvc_video_next_buffers()
1522 *meta_buf = uvc_queue_next_buffer(&stream->meta.queue, in uvc_video_next_buffers()
1525 *video_buf = uvc_queue_next_buffer(&stream->queue, *video_buf); in uvc_video_next_buffers()
1532 struct uvc_streaming *stream = uvc_urb->stream; in uvc_video_decode_isoc() local
1538 uvc_dbg(stream->dev, FRAME, in uvc_video_decode_isoc()
1550 ret = uvc_video_decode_start(stream, buf, mem, in uvc_video_decode_isoc()
1553 uvc_video_next_buffers(stream, &buf, &meta_buf); in uvc_video_decode_isoc()
1559 uvc_video_decode_meta(stream, meta_buf, mem, ret); in uvc_video_decode_isoc()
1566 uvc_video_decode_end(stream, buf, mem, in uvc_video_decode_isoc()
1570 uvc_video_next_buffers(stream, &buf, &meta_buf); in uvc_video_decode_isoc()
1578 struct uvc_streaming *stream = uvc_urb->stream; in uvc_video_decode_bulk() local
1586 if (urb->actual_length == 0 && stream->bulk.header_size == 0) in uvc_video_decode_bulk()
1591 stream->bulk.payload_size += len; in uvc_video_decode_bulk()
1597 if (stream->bulk.header_size == 0 && !stream->bulk.skip_payload) { in uvc_video_decode_bulk()
1599 ret = uvc_video_decode_start(stream, buf, mem, len); in uvc_video_decode_bulk()
1601 uvc_video_next_buffers(stream, &buf, &meta_buf); in uvc_video_decode_bulk()
1606 stream->bulk.skip_payload = 1; in uvc_video_decode_bulk()
1608 memcpy(stream->bulk.header, mem, ret); in uvc_video_decode_bulk()
1609 stream->bulk.header_size = ret; in uvc_video_decode_bulk()
1611 uvc_video_decode_meta(stream, meta_buf, mem, ret); in uvc_video_decode_bulk()
1625 if (!stream->bulk.skip_payload && buf != NULL) in uvc_video_decode_bulk()
1633 stream->bulk.payload_size >= stream->bulk.max_payload_size) { in uvc_video_decode_bulk()
1634 if (!stream->bulk.skip_payload && buf != NULL) { in uvc_video_decode_bulk()
1635 uvc_video_decode_end(stream, buf, stream->bulk.header, in uvc_video_decode_bulk()
1636 stream->bulk.payload_size); in uvc_video_decode_bulk()
1638 uvc_video_next_buffers(stream, &buf, &meta_buf); in uvc_video_decode_bulk()
1641 stream->bulk.header_size = 0; in uvc_video_decode_bulk()
1642 stream->bulk.skip_payload = 0; in uvc_video_decode_bulk()
1643 stream->bulk.payload_size = 0; in uvc_video_decode_bulk()
1651 struct uvc_streaming *stream = uvc_urb->stream; in uvc_video_encode_bulk() local
1654 int len = stream->urb_size, ret; in uvc_video_encode_bulk()
1662 if (stream->bulk.header_size == 0) { in uvc_video_encode_bulk()
1663 ret = uvc_video_encode_header(stream, buf, mem, len); in uvc_video_encode_bulk()
1664 stream->bulk.header_size = ret; in uvc_video_encode_bulk()
1665 stream->bulk.payload_size += ret; in uvc_video_encode_bulk()
1671 ret = uvc_video_encode_data(stream, buf, mem, len); in uvc_video_encode_bulk()
1673 stream->bulk.payload_size += ret; in uvc_video_encode_bulk()
1676 if (buf->bytesused == stream->queue.buf_used || in uvc_video_encode_bulk()
1677 stream->bulk.payload_size == stream->bulk.max_payload_size) { in uvc_video_encode_bulk()
1678 if (buf->bytesused == stream->queue.buf_used) { in uvc_video_encode_bulk()
1679 stream->queue.buf_used = 0; in uvc_video_encode_bulk()
1681 buf->buf.sequence = ++stream->sequence; in uvc_video_encode_bulk()
1682 uvc_queue_next_buffer(&stream->queue, buf); in uvc_video_encode_bulk()
1683 stream->last_fid ^= UVC_STREAM_FID; in uvc_video_encode_bulk()
1686 stream->bulk.header_size = 0; in uvc_video_encode_bulk()
1687 stream->bulk.payload_size = 0; in uvc_video_encode_bulk()
1690 urb->transfer_buffer_length = stream->urb_size - len; in uvc_video_encode_bulk()
1696 struct uvc_streaming *stream = uvc_urb->stream; in uvc_video_complete() local
1697 struct uvc_video_queue *queue = &stream->queue; in uvc_video_complete()
1698 struct uvc_video_queue *qmeta = &stream->meta.queue; in uvc_video_complete()
1699 struct vb2_queue *vb2_qmeta = stream->meta.vdev.queue; in uvc_video_complete()
1710 dev_warn(&stream->intf->dev, in uvc_video_complete()
1715 if (stream->frozen) in uvc_video_complete()
1740 dma_sync_sgtable_for_cpu(uvc_stream_to_dmadev(uvc_urb->stream), in uvc_video_complete()
1741 uvc_urb->sgt, uvc_stream_dir(stream)); in uvc_video_complete()
1743 uvc_urb->stream->urb_size); in uvc_video_complete()
1749 stream->decode(uvc_urb, buf, buf_meta); in uvc_video_complete()
1755 dev_err(&stream->intf->dev, in uvc_video_complete()
1760 queue_work(stream->async_wq, &uvc_urb->work); in uvc_video_complete()
1766 static void uvc_free_urb_buffers(struct uvc_streaming *stream) in uvc_free_urb_buffers() argument
1768 struct device *dma_dev = uvc_stream_to_dmadev(stream); in uvc_free_urb_buffers()
1771 for_each_uvc_urb(uvc_urb, stream) { in uvc_free_urb_buffers()
1776 dma_free_noncontiguous(dma_dev, stream->urb_size, uvc_urb->sgt, in uvc_free_urb_buffers()
1777 uvc_stream_dir(stream)); in uvc_free_urb_buffers()
1783 stream->urb_size = 0; in uvc_free_urb_buffers()
1786 static bool uvc_alloc_urb_buffer(struct uvc_streaming *stream, in uvc_alloc_urb_buffer() argument
1789 struct device *dma_dev = uvc_stream_to_dmadev(stream); in uvc_alloc_urb_buffer()
1791 uvc_urb->sgt = dma_alloc_noncontiguous(dma_dev, stream->urb_size, in uvc_alloc_urb_buffer()
1792 uvc_stream_dir(stream), in uvc_alloc_urb_buffer()
1798 uvc_urb->buffer = dma_vmap_noncontiguous(dma_dev, stream->urb_size, in uvc_alloc_urb_buffer()
1801 dma_free_noncontiguous(dma_dev, stream->urb_size, in uvc_alloc_urb_buffer()
1803 uvc_stream_dir(stream)); in uvc_alloc_urb_buffer()
1822 static int uvc_alloc_urb_buffers(struct uvc_streaming *stream, in uvc_alloc_urb_buffers() argument
1829 if (stream->urb_size) in uvc_alloc_urb_buffers()
1830 return stream->urb_size / psize; in uvc_alloc_urb_buffers()
1842 stream->urb_size = psize * npackets; in uvc_alloc_urb_buffers()
1845 struct uvc_urb *uvc_urb = &stream->uvc_urb[i]; in uvc_alloc_urb_buffers()
1847 if (!uvc_alloc_urb_buffer(stream, uvc_urb, gfp_flags)) { in uvc_alloc_urb_buffers()
1848 uvc_free_urb_buffers(stream); in uvc_alloc_urb_buffers()
1852 uvc_urb->stream = stream; in uvc_alloc_urb_buffers()
1856 uvc_dbg(stream->dev, VIDEO, in uvc_alloc_urb_buffers()
1863 uvc_dbg(stream->dev, VIDEO, in uvc_alloc_urb_buffers()
1872 static void uvc_video_stop_transfer(struct uvc_streaming *stream, in uvc_video_stop_transfer() argument
1877 uvc_video_stats_stop(stream); in uvc_video_stop_transfer()
1884 for_each_uvc_urb(uvc_urb, stream) in uvc_video_stop_transfer()
1887 flush_workqueue(stream->async_wq); in uvc_video_stop_transfer()
1889 for_each_uvc_urb(uvc_urb, stream) { in uvc_video_stop_transfer()
1895 uvc_free_urb_buffers(stream); in uvc_video_stop_transfer()
1920 static int uvc_init_video_isoc(struct uvc_streaming *stream, in uvc_init_video_isoc() argument
1929 psize = uvc_endpoint_max_bpi(stream->dev->udev, ep); in uvc_init_video_isoc()
1930 size = stream->ctrl.dwMaxVideoFrameSize; in uvc_init_video_isoc()
1932 npackets = uvc_alloc_urb_buffers(stream, size, psize, gfp_flags); in uvc_init_video_isoc()
1938 for_each_uvc_urb(uvc_urb, stream) { in uvc_init_video_isoc()
1941 uvc_video_stop_transfer(stream, 1); in uvc_init_video_isoc()
1945 urb->dev = stream->dev->udev; in uvc_init_video_isoc()
1947 urb->pipe = usb_rcvisocpipe(stream->dev->udev, in uvc_init_video_isoc()
1972 static int uvc_init_video_bulk(struct uvc_streaming *stream, in uvc_init_video_bulk() argument
1982 size = stream->ctrl.dwMaxPayloadTransferSize; in uvc_init_video_bulk()
1983 stream->bulk.max_payload_size = size; in uvc_init_video_bulk()
1985 npackets = uvc_alloc_urb_buffers(stream, size, psize, gfp_flags); in uvc_init_video_bulk()
1992 pipe = usb_rcvbulkpipe(stream->dev->udev, in uvc_init_video_bulk()
1995 pipe = usb_sndbulkpipe(stream->dev->udev, in uvc_init_video_bulk()
1998 if (stream->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) in uvc_init_video_bulk()
2001 for_each_uvc_urb(uvc_urb, stream) { in uvc_init_video_bulk()
2004 uvc_video_stop_transfer(stream, 1); in uvc_init_video_bulk()
2008 usb_fill_bulk_urb(urb, stream->dev->udev, pipe, uvc_urb->buffer, in uvc_init_video_bulk()
2022 static int uvc_video_start_transfer(struct uvc_streaming *stream, in uvc_video_start_transfer() argument
2025 struct usb_interface *intf = stream->intf; in uvc_video_start_transfer()
2031 stream->sequence = -1; in uvc_video_start_transfer()
2032 stream->last_fid = -1; in uvc_video_start_transfer()
2033 stream->bulk.header_size = 0; in uvc_video_start_transfer()
2034 stream->bulk.skip_payload = 0; in uvc_video_start_transfer()
2035 stream->bulk.payload_size = 0; in uvc_video_start_transfer()
2037 uvc_video_stats_start(stream); in uvc_video_start_transfer()
2044 int intfnum = stream->intfnum; in uvc_video_start_transfer()
2047 bandwidth = stream->ctrl.dwMaxPayloadTransferSize; in uvc_video_start_transfer()
2050 uvc_dbg(stream->dev, VIDEO, in uvc_video_start_transfer()
2054 uvc_dbg(stream->dev, VIDEO, in uvc_video_start_transfer()
2065 stream->header.bEndpointAddress); in uvc_video_start_transfer()
2070 psize = uvc_endpoint_max_bpi(stream->dev->udev, ep); in uvc_video_start_transfer()
2079 uvc_dbg(stream->dev, VIDEO, in uvc_video_start_transfer()
2084 uvc_dbg(stream->dev, VIDEO, in uvc_video_start_transfer()
2093 if (stream->dev->quirks & UVC_QUIRK_WAKE_AUTOSUSPEND) { in uvc_video_start_transfer()
2094 usb_set_interface(stream->dev->udev, intfnum, in uvc_video_start_transfer()
2096 usb_set_interface(stream->dev->udev, intfnum, 0); in uvc_video_start_transfer()
2099 ret = usb_set_interface(stream->dev->udev, intfnum, altsetting); in uvc_video_start_transfer()
2103 ret = uvc_init_video_isoc(stream, best_ep, gfp_flags); in uvc_video_start_transfer()
2107 stream->header.bEndpointAddress); in uvc_video_start_transfer()
2115 ret = uvc_init_video_bulk(stream, ep, gfp_flags); in uvc_video_start_transfer()
2122 for_each_uvc_urb(uvc_urb, stream) { in uvc_video_start_transfer()
2125 dev_err(&stream->intf->dev, in uvc_video_start_transfer()
2128 uvc_video_stop_transfer(stream, 1); in uvc_video_start_transfer()
2137 if (stream->dev->quirks & UVC_QUIRK_RESTORE_CTRLS_ON_INIT) in uvc_video_start_transfer()
2138 uvc_ctrl_restore_values(stream->dev); in uvc_video_start_transfer()
2154 int uvc_video_suspend(struct uvc_streaming *stream) in uvc_video_suspend() argument
2156 if (!uvc_queue_streaming(&stream->queue)) in uvc_video_suspend()
2159 stream->frozen = 1; in uvc_video_suspend()
2160 uvc_video_stop_transfer(stream, 0); in uvc_video_suspend()
2161 usb_set_interface(stream->dev->udev, stream->intfnum, 0); in uvc_video_suspend()
2173 int uvc_video_resume(struct uvc_streaming *stream, int reset) in uvc_video_resume() argument
2184 usb_set_interface(stream->dev->udev, stream->intfnum, 0); in uvc_video_resume()
2186 stream->frozen = 0; in uvc_video_resume()
2188 uvc_video_clock_reset(&stream->clock); in uvc_video_resume()
2190 if (!uvc_queue_streaming(&stream->queue)) in uvc_video_resume()
2193 ret = uvc_commit_video(stream, &stream->ctrl); in uvc_video_resume()
2197 return uvc_video_start_transfer(stream, GFP_NOIO); in uvc_video_resume()
2214 int uvc_video_init(struct uvc_streaming *stream) in uvc_video_init() argument
2216 struct uvc_streaming_control *probe = &stream->ctrl; in uvc_video_init()
2223 if (stream->nformats == 0) { in uvc_video_init()
2224 dev_info(&stream->intf->dev, in uvc_video_init()
2229 atomic_set(&stream->active, 0); in uvc_video_init()
2237 usb_set_interface(stream->dev->udev, stream->intfnum, 0); in uvc_video_init()
2245 if (uvc_get_video_ctrl(stream, probe, 1, UVC_GET_DEF) == 0) in uvc_video_init()
2246 uvc_set_video_ctrl(stream, probe, 1); in uvc_video_init()
2254 ret = uvc_get_video_ctrl(stream, probe, 1, UVC_GET_CUR); in uvc_video_init()
2264 usb_match_one_id(stream->dev->intf, &elgato_cam_link_4k)) { in uvc_video_init()
2265 dev_err(&stream->intf->dev, "Elgato Cam Link 4K firmware crash detected\n"); in uvc_video_init()
2266 dev_err(&stream->intf->dev, "Resetting the device, unplug and replug to recover\n"); in uvc_video_init()
2267 usb_reset_device(stream->dev->udev); in uvc_video_init()
2277 for (i = stream->nformats; i > 0; --i) { in uvc_video_init()
2278 format = &stream->formats[i-1]; in uvc_video_init()
2284 dev_info(&stream->intf->dev, in uvc_video_init()
2290 * Zero bFrameIndex might be correct. Stream-based formats (including in uvc_video_init()
2304 stream->def_format = format; in uvc_video_init()
2305 stream->cur_format = format; in uvc_video_init()
2306 stream->cur_frame = frame; in uvc_video_init()
2309 if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { in uvc_video_init()
2310 if (stream->dev->quirks & UVC_QUIRK_BUILTIN_ISIGHT) in uvc_video_init()
2311 stream->decode = uvc_video_decode_isight; in uvc_video_init()
2312 else if (stream->intf->num_altsetting > 1) in uvc_video_init()
2313 stream->decode = uvc_video_decode_isoc; in uvc_video_init()
2315 stream->decode = uvc_video_decode_bulk; in uvc_video_init()
2317 if (stream->intf->num_altsetting == 1) in uvc_video_init()
2318 stream->decode = uvc_video_encode_bulk; in uvc_video_init()
2320 dev_info(&stream->intf->dev, in uvc_video_init()
2327 for_each_uvc_urb(uvc_urb, stream) in uvc_video_init()
2333 int uvc_video_start_streaming(struct uvc_streaming *stream) in uvc_video_start_streaming() argument
2337 ret = uvc_video_clock_init(&stream->clock); in uvc_video_start_streaming()
2342 ret = uvc_commit_video(stream, &stream->ctrl); in uvc_video_start_streaming()
2346 ret = uvc_video_start_transfer(stream, GFP_KERNEL); in uvc_video_start_streaming()
2353 usb_set_interface(stream->dev->udev, stream->intfnum, 0); in uvc_video_start_streaming()
2355 uvc_video_clock_cleanup(&stream->clock); in uvc_video_start_streaming()
2360 void uvc_video_stop_streaming(struct uvc_streaming *stream) in uvc_video_stop_streaming() argument
2362 uvc_video_stop_transfer(stream, 1); in uvc_video_stop_streaming()
2364 if (stream->intf->num_altsetting > 1) { in uvc_video_stop_streaming()
2365 usb_set_interface(stream->dev->udev, stream->intfnum, 0); in uvc_video_stop_streaming()
2369 * when the video stream is stopped. Windows sends a in uvc_video_stop_streaming()
2373 unsigned int epnum = stream->header.bEndpointAddress in uvc_video_stop_streaming()
2375 unsigned int dir = stream->header.bEndpointAddress in uvc_video_stop_streaming()
2379 pipe = usb_sndbulkpipe(stream->dev->udev, epnum) | dir; in uvc_video_stop_streaming()
2380 usb_clear_halt(stream->dev->udev, pipe); in uvc_video_stop_streaming()
2383 uvc_video_clock_cleanup(&stream->clock); in uvc_video_stop_streaming()