diff options
| author | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2019-10-11 06:32:40 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-10-21 07:37:57 -0300 |
| commit | 137272cdf7cc5be835f44216e6003769d1638480 (patch) | |
| tree | d72ddc241e6533e749de7ed65751d1373b48284c /drivers/media/common | |
| parent | 4b1d7c2760d26363c497b959a81f8d055ba767c1 (diff) | |
| download | linux-137272cdf7cc5be835f44216e6003769d1638480.tar.bz2 | |
media: vb2: add V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF
This patch adds support for the V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF
flag.
It also adds a new V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF
capability.
Drivers should set vb2_queue->subsystem_flags to
VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF to indicate support
for this flag.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media/common')
| -rw-r--r-- | drivers/media/common/videobuf2/videobuf2-v4l2.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c index 5a9ba3846f0a..e652f4318284 100644 --- a/drivers/media/common/videobuf2/videobuf2-v4l2.c +++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c @@ -49,8 +49,11 @@ module_param(debug, int, 0644); V4L2_BUF_FLAG_REQUEST_FD | \ V4L2_BUF_FLAG_TIMESTAMP_MASK) /* Output buffer flags that should be passed on to the driver */ -#define V4L2_BUFFER_OUT_FLAGS (V4L2_BUF_FLAG_PFRAME | V4L2_BUF_FLAG_BFRAME | \ - V4L2_BUF_FLAG_KEYFRAME | V4L2_BUF_FLAG_TIMECODE) +#define V4L2_BUFFER_OUT_FLAGS (V4L2_BUF_FLAG_PFRAME | \ + V4L2_BUF_FLAG_BFRAME | \ + V4L2_BUF_FLAG_KEYFRAME | \ + V4L2_BUF_FLAG_TIMECODE | \ + V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF) /* * __verify_planes_array() - verify that the planes array passed in struct @@ -194,6 +197,7 @@ static int vb2_fill_vb2_v4l2_buffer(struct vb2_buffer *vb, struct v4l2_buffer *b } vbuf->sequence = 0; vbuf->request_fd = -1; + vbuf->is_held = false; if (V4L2_TYPE_IS_MULTIPLANAR(b->type)) { switch (b->memory) { @@ -321,6 +325,8 @@ static int vb2_fill_vb2_v4l2_buffer(struct vb2_buffer *vb, struct v4l2_buffer *b */ vbuf->flags &= ~V4L2_BUF_FLAG_TIMECODE; vbuf->field = b->field; + if (!(q->subsystem_flags & VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF)) + vbuf->flags &= ~V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF; } else { /* Zero any output buffer flags as this is a capture buffer */ vbuf->flags &= ~V4L2_BUFFER_OUT_FLAGS; @@ -654,6 +660,8 @@ static void fill_buf_caps(struct vb2_queue *q, u32 *caps) *caps |= V4L2_BUF_CAP_SUPPORTS_USERPTR; if (q->io_modes & VB2_DMABUF) *caps |= V4L2_BUF_CAP_SUPPORTS_DMABUF; + if (q->subsystem_flags & VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF) + *caps |= V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF; #ifdef CONFIG_MEDIA_CONTROLLER_REQUEST_API if (q->supports_requests) *caps |= V4L2_BUF_CAP_SUPPORTS_REQUESTS; |