redonkable/alistair23-linux
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[media] cx25821: add create_bufs support

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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>
This commit is contained in:
Hans Verkuil 2014-12-12 10:27:59 -03:00 committed by Mauro Carvalho Chehab
parent b671ae6bdc
commit 11c8a2df2c
1 changed files with 6 additions and 1 deletions
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7
drivers/media/pci/cx25821/cx25821-video.c
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@ -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,