linux-kernel - Re: [PATCH v3 4/4] uapi: linux: add MT8188 AIE

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Message-ID: <a3a6d723e7018fe0c2ace016aada4cd2ac62c578.camel@mediatek.com>
Date: Tue, 31 Dec 2024 06:55:13 +0000
From: CK Hu (胡俊光) <ck.hu@...iatek.com>
To: "robh@...nel.org" <robh@...nel.org>, "mchehab@...nel.org"
	<mchehab@...nel.org>, "krzk+dt@...nel.org" <krzk+dt@...nel.org>,
	Bo Kong (孔波) <Bo.Kong@...iatek.com>
CC: "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
	Project_Global_Chrome_Upstream_Group
	<Project_Global_Chrome_Upstream_Group@...iatek.com>, "AngeloGioacchino Del
 Regno" <angelogioacchino.delregno@...labora.com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org"
	<linux-arm-kernel@...ts.infradead.org>, "conor+dt@...nel.org"
	<conor+dt@...nel.org>, "linux-mediatek@...ts.infradead.org"
	<linux-mediatek@...ts.infradead.org>, "matthias.bgg@...il.com"
	<matthias.bgg@...il.com>
Subject: Re: [PATCH v3 4/4] uapi: linux: add MT8188 AIE

Hi, Bo:

On Wed, 2024-12-25 at 17:00 +0800, bo.kong wrote:
> From: Bo Kong <Bo.Kong@...iatek.com>
> 
> Add AIE control related definitions.
> 
> Signed-off-by: Bo Kong <Bo.Kong@...iatek.com>
> ---

[snip]

> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
> index e7c4dce39007..b23a9e99c835 100644
> --- a/include/uapi/linux/videodev2.h
> +++ b/include/uapi/linux/videodev2.h
> @@ -877,6 +877,9 @@ struct v4l2_pix_format {
>  #define V4L2_META_FMT_GENERIC_CSI2_24	v4l2_fourcc('M', 'C', '1', 'O') /* 24-bit CSI-2 packed 8-bit metadata */
>  #endif
>  
> +/* Vendor-specific definition: used for the MediaTek camera subsystem's face detection results */
> +#define V4L2_META_FMT_MTFD_RESULT v4l2_fourcc('M', 'T', 'f', 'd')

Add document to describe the detail of V4L2_META_FMT_MTFD_RESULT. [1] is the example document for V4L2_META_FMT_RPI_FE_CFG.
There are many document in Documentation/userspace-api/media/v4l/ for your reference.

[1] https://patchwork.kernel.org/project/linux-media/patch/20241003-rp1-cfe-v6-1-d6762edd98a8@ideasonboard.com/

Regards,
CK

> +
>  /* priv field value to indicates that subsequent fields are valid. */
>  #define V4L2_PIX_FMT_PRIV_MAGIC		0xfeedcafe
>  
> @@ -1961,6 +1964,9 @@ enum v4l2_ctrl_type {
>  	V4L2_CTRL_TYPE_AV1_TILE_GROUP_ENTRY = 0x281,
>  	V4L2_CTRL_TYPE_AV1_FRAME	    = 0x282,
>  	V4L2_CTRL_TYPE_AV1_FILM_GRAIN	    = 0x283,
> +
> +	V4L2_CTRL_TYPE_AIE_INIT		= 0x0290,
> +	V4L2_CTRL_TYPE_AIE_PARAM	= 0x0291,
>  };
>  
>  /*  Used in the VIDIOC_QUERYCTRL ioctl for querying controls */