diff options
| author | Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> | 2016-08-22 13:12:24 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-09-06 16:42:07 -0300 |
| commit | ee242096598df01fcdeb709ddf765bb614d93afb (patch) | |
| tree | 8cca200cc7e701ca21c8b23e61776b93eb88e9c4 /drivers/media/pci | |
| parent | e28a6c8b3fcc166254596bbbf9ebe45facfa48eb (diff) | |
[media] media: tw686x: Support frame sizes and frame intervals enumeration
This commit adds support for VIDIOC_ENUM_FRAMESIZES
and VIDIOC_ENUM_FRAMEINTERVALS enumeration ioctls.
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/pci')
| -rw-r--r-- | drivers/media/pci/tw686x/tw686x-video.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/media/pci/tw686x/tw686x-video.c b/drivers/media/pci/tw686x/tw686x-video.c index 24a813256c99..9621588be12c 100644 --- a/drivers/media/pci/tw686x/tw686x-video.c +++ b/drivers/media/pci/tw686x/tw686x-video.c @@ -906,6 +906,42 @@ static int tw686x_g_std(struct file *file, void *priv, v4l2_std_id *id) return 0; } +static int tw686x_enum_framesizes(struct file *file, void *priv, + struct v4l2_frmsizeenum *fsize) +{ + struct tw686x_video_channel *vc = video_drvdata(file); + + if (fsize->index) + return -EINVAL; + fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; + fsize->stepwise.max_width = TW686X_VIDEO_WIDTH; + fsize->stepwise.min_width = fsize->stepwise.max_width / 2; + fsize->stepwise.step_width = fsize->stepwise.min_width; + fsize->stepwise.max_height = TW686X_VIDEO_HEIGHT(vc->video_standard); + fsize->stepwise.min_height = fsize->stepwise.max_height / 2; + fsize->stepwise.step_height = fsize->stepwise.min_height; + return 0; +} + +static int tw686x_enum_frameintervals(struct file *file, void *priv, + struct v4l2_frmivalenum *ival) +{ + struct tw686x_video_channel *vc = video_drvdata(file); + int max_fps = TW686X_MAX_FPS(vc->video_standard); + int max_rates = DIV_ROUND_UP(max_fps, 2); + + if (ival->index >= max_rates) + return -EINVAL; + + ival->type = V4L2_FRMIVAL_TYPE_DISCRETE; + ival->discrete.numerator = 1; + if (ival->index < (max_rates - 1)) + ival->discrete.denominator = (ival->index + 1) * 2; + else + ival->discrete.denominator = max_fps; + return 0; +} + static int tw686x_g_parm(struct file *file, void *priv, struct v4l2_streamparm *sp) { @@ -1034,6 +1070,8 @@ static const struct v4l2_ioctl_ops tw686x_video_ioctl_ops = { .vidioc_g_parm = tw686x_g_parm, .vidioc_s_parm = tw686x_s_parm, + .vidioc_enum_framesizes = tw686x_enum_framesizes, + .vidioc_enum_frameintervals = tw686x_enum_frameintervals, .vidioc_enum_input = tw686x_enum_input, .vidioc_g_input = tw686x_g_input, |