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[media] cobalt: add cropcap support 

Now that the timings contain picture aspect ratio information,
we can support cropcap to return the pixel aspect ratio.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Hans Verkuil 2016-07-17 05:42:07 -03:00 committed by Mauro Carvalho Chehab
parent 652430763f
commit d736e348a0
1 changed files with 21 additions and 0 deletions
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21
drivers/media/pci/cobalt/cobalt-v4l2.c
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@ -1084,12 +1084,33 @@ static int cobalt_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
return 0;
}
static int cobalt_cropcap(struct file *file, void *fh, struct v4l2_cropcap *cc)
{
struct cobalt_stream *s = video_drvdata(file);
struct v4l2_dv_timings timings;
int err = 0;
if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
if (s->input == 1)
timings = cea1080p60;
else
err = v4l2_subdev_call(s->sd, video, g_dv_timings, &timings);
if (!err) {
cc->bounds.width = cc->defrect.width = timings.bt.width;
cc->bounds.height = cc->defrect.height = timings.bt.height;
cc->pixelaspect = v4l2_dv_timings_aspect_ratio(&timings);
}
return err;
}
static const struct v4l2_ioctl_ops cobalt_ioctl_ops = {
.vidioc_querycap = cobalt_querycap,
.vidioc_g_parm = cobalt_g_parm,
.vidioc_log_status = cobalt_log_status,
.vidioc_streamon = vb2_ioctl_streamon,
.vidioc_streamoff = vb2_ioctl_streamoff,
.vidioc_cropcap = cobalt_cropcap,
.vidioc_enum_input = cobalt_enum_input,
.vidioc_g_input = cobalt_g_input,
.vidioc_s_input = cobalt_s_input,