Em Mon, 9 Apr 2018 16:20:20 +0200
Hans Verkuil <hverk...@xs4all.nl> escreveu:
> From: Hans Verkuil <hans.verk...@cisco.com>
>
> Requested by Sakari
Huh? What kind of description is that?
Why is it needed?
It is even harder to analyze this as documentation for the new
field is not there.
>
> Signed-off-by: Hans Verkuil <hans.verk...@cisco.com>
> ---
> drivers/media/common/videobuf2/videobuf2-v4l2.c | 6 ++++--
> include/media/videobuf2-v4l2.h | 2 ++
> 2 files changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c
> b/drivers/media/common/videobuf2/videobuf2-v4l2.c
> index 3d0c74bb4220..7b79149b7fae 100644
> --- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
> +++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
> @@ -184,6 +184,7 @@ static int vb2_fill_vb2_v4l2_buffer(struct vb2_buffer
> *vb, struct v4l2_buffer *b
> return -EINVAL;
> }
> vbuf->sequence = 0;
> + vbuf->request_fd = -1;
>
> if (V4L2_TYPE_IS_MULTIPLANAR(b->type)) {
> switch (b->memory) {
> @@ -391,6 +392,7 @@ static int vb2_queue_or_prepare_buf(struct vb2_queue *q,
> struct media_device *md
> }
>
> *p_req = req;
> + vbuf->request_fd = b->request_fd;
>
> return 0;
> }
> @@ -496,9 +498,9 @@ static void __fill_v4l2_buffer(struct vb2_buffer *vb,
> void *pb)
>
> if (vb2_buffer_in_use(q, vb))
> b->flags |= V4L2_BUF_FLAG_MAPPED;
> - if (vb->req_obj.req) {
> + if (vbuf->request_fd >= 0) {
> b->flags |= V4L2_BUF_FLAG_REQUEST_FD;
> - b->request_fd = -1;
> + b->request_fd = vbuf->request_fd;
> }
>
> if (!q->is_output &&
> diff --git a/include/media/videobuf2-v4l2.h b/include/media/videobuf2-v4l2.h
> index 0baa3023d7ad..d3ee1f28e197 100644
> --- a/include/media/videobuf2-v4l2.h
> +++ b/include/media/videobuf2-v4l2.h
> @@ -32,6 +32,7 @@
> * &enum v4l2_field.
> * @timecode: frame timecode.
> * @sequence: sequence count of this frame.
> + * @request_fd: the request_fd associated with this buffer
> * @planes: plane information (userptr/fd, length, bytesused, data_offset).
> *
> * Should contain enough information to be able to cover all the fields
> @@ -44,6 +45,7 @@ struct vb2_v4l2_buffer {
> __u32 field;
> struct v4l2_timecode timecode;
> __u32 sequence;
> + __s32 request_fd;
> struct vb2_plane planes[VB2_MAX_PLANES];
> };
>
Thanks,
Mauro
