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[media] vim2m: add create_bufs and prepare_buf support 

Add support for the missing VIDIOC_CREATE_BUFS and VIDIOC_PREPARE_BUF
ioctls.

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 2015-06-05 11:28:52 -03:00 committed by Mauro Carvalho Chehab
parent e68cf471e7
commit 7bcff1c242
1 changed files with 8 additions and 0 deletions
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8
drivers/media/platform/vim2m.c
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@ -693,6 +693,8 @@ static const struct v4l2_ioctl_ops vim2m_ioctl_ops = {
.vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
.vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
.vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
.vidioc_streamon = v4l2_m2m_ioctl_streamon,
@ -720,6 +722,12 @@ static int vim2m_queue_setup(struct vb2_queue *vq,
size = q_data->width * q_data->height * q_data->fmt->depth >> 3;
if (fmt) {
if (fmt->fmt.pix.sizeimage < size)
return -EINVAL;
size = fmt->fmt.pix.sizeimage;
}
while (size * count > MEM2MEM_VID_MEM_LIMIT)
(count)--;