Hello
explicit Cc Hans, as I recall the usage of s/g_parm was deprecated
and discouraged in mainline.
Hans: Support for g/s_param is required by Nikita to maintain
compatibility with (out of tree?) subdevice drivers. Should we add it
to the mainline receiver driver ?
What other API should be used to control the subdevice framerate ?
Should it go through VIDIOC_SUBDEV_S_FRAME_INTERVAL instead ?
Thanks
j
On Fri, Sep 24, 2021 at 04:51:38PM +0300, Nikita Yushchenko wrote:
> From: Vladimir Barinov <vladimir.barinov@xxxxxxxxxxxxxxxxxx>
>
> This adds g/s_parm ioctls for parallel interface.
>
> Signed-off-by: Vladimir Barinov <vladimir.barinov@xxxxxxxxxxxxxxxxxx>
> Signed-off-by: Nikita Yushchenko <nikita.yoush@xxxxxxxxxxxxxxxxxx>
> ---
> Changes from v1:
> - use &vin->vdev to access vin's struct video_device
>
> drivers/media/platform/rcar-vin/rcar-v4l2.c | 21 +++++++++++++++++++++
> 1 file changed, 21 insertions(+)
>
> diff --git a/drivers/media/platform/rcar-vin/rcar-v4l2.c b/drivers/media/platform/rcar-vin/rcar-v4l2.c
> index bdeff51bf768..a5bfa76fdac6 100644
> --- a/drivers/media/platform/rcar-vin/rcar-v4l2.c
> +++ b/drivers/media/platform/rcar-vin/rcar-v4l2.c
> @@ -527,6 +527,24 @@ static int rvin_s_selection(struct file *file, void *fh,
> return 0;
> }
>
> +static int rvin_g_parm(struct file *file, void *priv,
> + struct v4l2_streamparm *parm)
> +{
> + struct rvin_dev *vin = video_drvdata(file);
> + struct v4l2_subdev *sd = vin_to_source(vin);
> +
> + return v4l2_g_parm_cap(&vin->vdev, sd, parm);
> +}
> +
> +static int rvin_s_parm(struct file *file, void *priv,
> + struct v4l2_streamparm *parm)
> +{
> + struct rvin_dev *vin = video_drvdata(file);
> + struct v4l2_subdev *sd = vin_to_source(vin);
> +
> + return v4l2_s_parm_cap(&vin->vdev, sd, parm);
> +}
> +
> static int rvin_g_pixelaspect(struct file *file, void *priv,
> int type, struct v4l2_fract *f)
> {
> @@ -743,6 +761,9 @@ static const struct v4l2_ioctl_ops rvin_ioctl_ops = {
> .vidioc_g_selection = rvin_g_selection,
> .vidioc_s_selection = rvin_s_selection,
>
> + .vidioc_g_parm = rvin_g_parm,
> + .vidioc_s_parm = rvin_s_parm,
> +
> .vidioc_g_pixelaspect = rvin_g_pixelaspect,
>
> .vidioc_enum_input = rvin_enum_input,
> --
> 2.30.2
>
