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| author | Hans Verkuil <hans.verkuil@cisco.com> | 2014-12-12 10:27:59 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2014-12-23 10:20:40 -0200 |
| commit | 11c8a2df2cf8c213e1970d548aee067887971ef8 (patch) | |
| tree | 7e01d5e3b6b106468c4e8a8b4f574ccddb01045a /drivers/media/pci/cx25821 | |
| parent | b671ae6bdc1ad77a63536c6f74940976b9b89322 (diff) | |
| download | linux-11c8a2df2cf8c213e1970d548aee067887971ef8.tar.gz | |
[media] cx25821: add create_bufs support
Add support for the VIDIOC_CREATE_BUFS ioctl. This was missing in this driver and in vb2 it's trivial to add. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/pci/cx25821')
| -rw-r--r-- | drivers/media/pci/cx25821/cx25821-video.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/media/pci/cx25821/cx25821-video.c b/drivers/media/pci/cx25821/cx25821-video.c index 3497946c72ea..827c3c036ba3 100644 --- a/drivers/media/pci/cx25821/cx25821-video.c +++ b/drivers/media/pci/cx25821/cx25821-video.c @@ -146,9 +146,13 @@ static int cx25821_queue_setup(struct vb2_queue *q, const struct v4l2_format *fm unsigned int sizes[], void *alloc_ctxs[]) { struct cx25821_channel *chan = q->drv_priv; + unsigned size = (chan->fmt->depth * chan->width * chan->height) >> 3; + + if (fmt && fmt->fmt.pix.sizeimage < size) + return -EINVAL; *num_planes = 1; - sizes[0] = (chan->fmt->depth * chan->width * chan->height) >> 3; + sizes[0] = fmt ? fmt->fmt.pix.sizeimage : size; alloc_ctxs[0] = chan->dev->alloc_ctx; return 0; } @@ -610,6 +614,7 @@ static const struct v4l2_ioctl_ops video_ioctl_ops = { .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, .vidioc_reqbufs = vb2_ioctl_reqbufs, .vidioc_prepare_buf = vb2_ioctl_prepare_buf, + .vidioc_create_bufs = vb2_ioctl_create_bufs, .vidioc_querybuf = vb2_ioctl_querybuf, .vidioc_qbuf = vb2_ioctl_qbuf, .vidioc_dqbuf = vb2_ioctl_dqbuf, |