linux-kernel - Re: [PATCH 7/9] media: sun6i-csi: capture: Implement enum

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Date:   Sat, 25 Mar 2023 23:33:36 +0200
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Paul Kocialkowski <paul.kocialkowski@...tlin.com>
Cc:     linux-media@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org,
        linux-staging@...ts.linux.dev,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Samuel Holland <samuel@...lland.org>,
        Adam Pigg <adam@...gz.co.uk>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH 7/9] media: sun6i-csi: capture: Implement enum_framesizes

Hi Paul,

Thank you for the patch.

On Fri, Mar 24, 2023 at 04:12:26PM +0100, Paul Kocialkowski wrote:
> Report available frame sizes as a continuous range between the
> hardware min/max limits.
> 
> Signed-off-by: Paul Kocialkowski <paul.kocialkowski@...tlin.com>
> Co-authored-by: Adam Pigg <adam@...gz.co.uk>
> Signed-off-by: Adam Pigg <adam@...gz.co.uk>

Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>

> ---
>  .../sunxi/sun6i-csi/sun6i_csi_capture.c       | 26 +++++++++++++++++++
>  1 file changed, 26 insertions(+)
> 
> diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c
> index 9627030ff060..31ba83014086 100644
> --- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c
> +++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c
> @@ -847,6 +847,30 @@ static int sun6i_csi_capture_try_fmt(struct file *file, void *private,
>  	return 0;
>  }
>  
> +static int
> +sun6i_csi_capture_enum_framesizes(struct file *file, void *fh,
> +				  struct v4l2_frmsizeenum *frmsizeenum)
> +{
> +	const struct sun6i_csi_capture_format *format;
> +
> +	if (frmsizeenum->index > 0)
> +		return -EINVAL;
> +
> +	format = sun6i_csi_capture_format_find(frmsizeenum->pixel_format);
> +	if (!format)
> +		return -EINVAL;
> +
> +	frmsizeenum->type = V4L2_FRMSIZE_TYPE_CONTINUOUS;
> +	frmsizeenum->stepwise.min_width = SUN6I_CSI_CAPTURE_WIDTH_MIN;
> +	frmsizeenum->stepwise.max_width = SUN6I_CSI_CAPTURE_WIDTH_MAX;
> +	frmsizeenum->stepwise.min_height = SUN6I_CSI_CAPTURE_HEIGHT_MIN;
> +	frmsizeenum->stepwise.max_height = SUN6I_CSI_CAPTURE_HEIGHT_MAX;
> +	frmsizeenum->stepwise.step_width = 1;
> +	frmsizeenum->stepwise.step_height = 1;
> +
> +	return 0;
> +}
> +
>  static int sun6i_csi_capture_enum_input(struct file *file, void *private,
>  					struct v4l2_input *input)
>  {
> @@ -884,6 +908,8 @@ static const struct v4l2_ioctl_ops sun6i_csi_capture_ioctl_ops = {
>  	.vidioc_s_fmt_vid_cap		= sun6i_csi_capture_s_fmt,
>  	.vidioc_try_fmt_vid_cap		= sun6i_csi_capture_try_fmt,
>  
> +	.vidioc_enum_framesizes		= sun6i_csi_capture_enum_framesizes,
> +
>  	.vidioc_enum_input		= sun6i_csi_capture_enum_input,
>  	.vidioc_g_input			= sun6i_csi_capture_g_input,
>  	.vidioc_s_input			= sun6i_csi_capture_s_input,

-- 
Regards,

Laurent Pinchart