[2/2] media: fsl_viu: add VIDIOC_QUERYSTD and VIDIOC_G_STD support

  VIDIOC_QUERYSTD and VIDIOC_G_STD ioctls are currently not
supported in the FSL VIU driver. The decoder subdevice
driver saa7115 extended by previous patch supports QUERYSTD
for saa7113, so we add the appropriate ioctls to the VIU
driver to be able to determine the video input's standard.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
---
 drivers/media/video/fsl-viu.c |   21 +++++++++++++++++++++
 1 files changed, 21 insertions(+), 0 deletions(-)
  

Em 13-12-2010 16:19, Anatolij Gustschin escreveu:
> VIDIOC_QUERYSTD and VIDIOC_G_STD ioctls are currently not
> supported in the FSL VIU driver. The decoder subdevice
> driver saa7115 extended by previous patch supports QUERYSTD
> for saa7113, so we add the appropriate ioctls to the VIU
> driver to be able to determine the video input's standard.

This patch looks ok, but as it is somewhat dependent on the
saa7113 patch, please re-send it together with the other patch
for me to pull both together.
> 
> Signed-off-by: Anatolij Gustschin <agust@denx.de>
> 
> ---
> drivers/media/video/fsl-viu.c |   21 +++++++++++++++++++++
>  1 files changed, 21 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/media/video/fsl-viu.c b/drivers/media/video/fsl-viu.c
> index b8faff2..04be6eb 100644
> --- a/drivers/media/video/fsl-viu.c
> +++ b/drivers/media/video/fsl-viu.c
> @@ -194,6 +194,8 @@ struct viu_dev {
>  
>  	/* decoder */
>  	struct v4l2_subdev	*decoder;
> +
> +	v4l2_std_id		std;
>  };
>  
>  struct viu_fh {
> @@ -933,14 +935,31 @@ static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
>  #define decoder_call(viu, o, f, args...) \
>  	v4l2_subdev_call(viu->decoder, o, f, ##args)
>  
> +static int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *std_id)
> +{
> +	struct viu_fh *fh = priv;
> +
> +	decoder_call(fh->dev, video, querystd, std_id);
> +	return 0;
> +}
> +
>  static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *id)
>  {
>  	struct viu_fh *fh = priv;
>  
> +	fh->dev->std = *id;
>  	decoder_call(fh->dev, core, s_std, *id);
>  	return 0;
>  }
>  
> +static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *std_id)
> +{
> +	struct viu_fh *fh = priv;
> +
> +	*std_id = fh->dev->std;
> +	return 0;
> +}
> +
>  /* only one input in this driver */
>  static int vidioc_enum_input(struct file *file, void *priv,
>  					struct v4l2_input *inp)
> @@ -1397,7 +1416,9 @@ static const struct v4l2_ioctl_ops viu_ioctl_ops = {
>  	.vidioc_querybuf      = vidioc_querybuf,
>  	.vidioc_qbuf          = vidioc_qbuf,
>  	.vidioc_dqbuf         = vidioc_dqbuf,
> +	.vidioc_g_std         = vidioc_g_std,
>  	.vidioc_s_std         = vidioc_s_std,
> +	.vidioc_querystd      = vidioc_querystd,
>  	.vidioc_enum_input    = vidioc_enum_input,
>  	.vidioc_g_input       = vidioc_g_input,
>  	.vidioc_s_input       = vidioc_s_input,
> 

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