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[media] vivi: add frame size reporting 

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2012-08-06 10:37:18 -03:00 committed by Mauro Carvalho Chehab
parent 0a3a8a36d9
commit 77747f7960
1 changed files with 22 additions and 0 deletions
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22
drivers/media/video/vivi.c
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@ -991,6 +991,27 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
return 0;
}
static int vidioc_enum_framesizes(struct file *file, void *fh,
struct v4l2_frmsizeenum *fsize)
{
static const struct v4l2_frmsize_stepwise sizes = {
48, MAX_WIDTH, 4,
32, MAX_HEIGHT, 1
};
int i;
if (fsize->index)
return -EINVAL;
for (i = 0; i < ARRAY_SIZE(formats); i++)
if (formats[i].fourcc == fsize->pixel_format)
break;
if (i == ARRAY_SIZE(formats))
return -EINVAL;
fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
fsize->stepwise = sizes;
return 0;
}
/* only one input in this sample driver */
static int vidioc_enum_input(struct file *file, void *priv,
struct v4l2_input *inp)
@ -1175,6 +1196,7 @@ static const struct v4l2_ioctl_ops vivi_ioctl_ops = {
.vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
.vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
.vidioc_enum_framesizes = vidioc_enum_framesizes,
.vidioc_reqbufs = vb2_ioctl_reqbufs,
.vidioc_create_bufs = vb2_ioctl_create_bufs,
.vidioc_prepare_buf = vb2_ioctl_prepare_buf,