git.openwrt.org Git - openwrt/staging/yousong.git/blob

   1 From ba37d62e7bbdf42c2fa9ac3655354992da199a4b Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.org>
   3 Date: Thu, 21 Jun 2018 17:02:14 +0100
   4 Subject: [PATCH 252/806] staging: bcm2835-camera: Set sequence number
   5  correctly
   6
   7 Set the sequence number in vb2_v4l2_buffer mainly so the
   8 latest v4l2-ctl reports the frame rate correctly.
   9
  10 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
  11 ---
  12  drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c | 4 ++++
  13  drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.h | 2 ++
  14  2 files changed, 6 insertions(+)
  15
  16 --- a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
  17 +++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
  18 @@ -409,6 +409,7 @@ static void buffer_cb(struct vchiq_mmal_
  19                 }
  20         }
  21         dev->capture.last_timestamp = buf->vb.vb2_buf.timestamp;
  22 +       buf->vb.sequence = dev->capture.sequence++;
  23
  24         vb2_set_plane_payload(&buf->vb.vb2_buf, 0, length);
  25         if (mmal_flags & MMAL_BUFFER_HEADER_FLAG_KEYFRAME)
  26 @@ -537,6 +538,9 @@ static int start_streaming(struct vb2_qu
  27         /* enable frame capture */
  28         dev->capture.frame_count = 1;
  29
  30 +       /* reset sequence number */
  31 +       dev->capture.sequence = 0;
  32 +
  33         /* if the preview is not already running, wait for a few frames for AGC
  34          * to settle down.
  35          */
  36 --- a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.h
  37 +++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.h
  38 @@ -93,6 +93,8 @@ struct bm2835_mmal_dev {
  39                 ktime_t kernel_start_ts;
  40                 /* Timestamp of last frame */
  41                 u64             last_timestamp;
  42 +               /* Sequence number of last buffer */
  43 +               u32             sequence;
  44
  45                 struct vchiq_mmal_port  *port; /* port being used for capture */
  46                 /* camera port being used for capture */