Date: Thu, 20 Jun 2024 13:02:58 +0200
From: Hans Verkuil <hverkuil-cisco@...all.nl>
To: Changhuang Liang <changhuang.liang@...rfivetech.com>,
 Mauro Carvalho Chehab <mchehab@...nel.org>,
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
 Matthias Brugger <matthias.bgg@...il.com>, Ming Qian <ming.qian@....com>,
 Laurent Pinchart <laurent.pinchart@...asonboard.com>,
 Nicolas Dufresne <nicolas.dufresne@...labora.com>,
 Benjamin Gaignard <benjamin.gaignard@...labora.com>,
 Tomi Valkeinen <tomi.valkeinen+renesas@...asonboard.com>,
 Mingjia Zhang <mingjia.zhang@...iatek.com>, Marvin Lin <milkfafa@...il.com>
Cc: Jack Zhu <jack.zhu@...rfivetech.com>, linux-media@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-staging@...ts.linux.dev
Subject: Re: [PATCH v4 01/13] media: starfive: Add JH7110 ISP module
 definitions

Hi Changhuang,

Have you checked that these structs have the same layout for 32 and 64 architectures?
pahole is a useful tool for that.

I.e., if the kernel is 64 bit but userspace is compiled for 32 bit, then these structs
should still have the same layout.

It probably is fine, checking it with pahole is a good idea.

On 02/04/2024 11:59, Changhuang Liang wrote:
> Add JH7110 ISP module definitions for user space.
> 
> Signed-off-by: Changhuang Liang <changhuang.liang@...rfivetech.com>
> Signed-off-by: Zejian Su <zejian.su@...rfivetech.com>
> ---
>  MAINTAINERS                     |   1 +
>  include/uapi/linux/jh7110-isp.h | 739 ++++++++++++++++++++++++++++++++
>  2 files changed, 740 insertions(+)
>  create mode 100644 include/uapi/linux/jh7110-isp.h
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 88b4cdde1ad8..e5ed3c876a55 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -20955,6 +20955,7 @@ S:	Maintained
>  F:	Documentation/admin-guide/media/starfive_camss.rst
>  F:	Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
>  F:	drivers/staging/media/starfive/camss
> +F:	include/uapi/linux/jh7110-isp.h
>  
>  STARFIVE CRYPTO DRIVER
>  M:	Jia Jie Ho <jiajie.ho@...rfivetech.com>
> diff --git a/include/uapi/linux/jh7110-isp.h b/include/uapi/linux/jh7110-isp.h
> new file mode 100644
> index 000000000000..e9857995068b
> --- /dev/null
> +++ b/include/uapi/linux/jh7110-isp.h
> @@ -0,0 +1,739 @@
> +/* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) */
> +/*
> + * jh7110-isp.h
> + *
> + * JH7110 ISP driver - user space header file.
> + *
> + * Copyright © 2023 StarFive Technology Co., Ltd.
> + *
> + * Author: Zejian Su <zejian.su@...rfivetech.com>
> + *
> + */
> +
> +#ifndef __JH7110_ISP_H_
> +#define __JH7110_ISP_H_
> +
> +/**
> + * ISP Module Diagram
> + * ------------------
> + *
> + *  Raw  +-----+    +------+    +------+    +----+
> + *  ---->| OBC |--->| OECF |--->| LCCF |--->| WB |-----+
> + *       +-----+    +------+    +------+    +----+     |
> + *                                                     |
> + *  +--------------------------------------------------+
> + *  |
> + *  |    +-----+    +-----+    +-----+    +-----+
> + *  +--->| DBC |--->| CTC |--->| CFA |--->| CAR |------+
> + *       +-----+    +-----+    +-----+    +-----+      |
> + *                                                     |
> + *  +--------------------------------------------------+
> + *  |
> + *  |    +-----+    +--------+    +-----+    +------+
> + *  +--->| CCM |--->| GMARGB |--->| R2Y |--->| YCRV |--+
> + *       +-----+    +--------+    +-----+    +------+  |
> + *                                                     |
> + *  +--------------------------------------------------+
> + *  |
> + *  |    +-------+    +-------+    +-----+    +----+
> + *  +--->| SHARP |--->| DNYUV |--->| SAT |--->| SC |
> + *       +-------+    +-------+    +-----+    +----+
> + *
> + */
> +
> +/* Auto White Balance */
> +#define JH7110_ISP_MODULE_WB_SETTING			(1U << 0)
> +/* Color Artifact Removal */
> +#define JH7110_ISP_MODULE_CAR_SETTING			(1U << 1)
> +/* Color Correction Matrix */
> +#define JH7110_ISP_MODULE_CCM_SETTING			(1U << 2)
> +/* Color Filter Arrays */
> +#define JH7110_ISP_MODULE_CFA_SETTING			(1U << 3)
> +/* Crosstalk Correction */
> +#define JH7110_ISP_MODULE_CTC_SETTING			(1U << 4)
> +/* Defect Bad Pixel Correction */
> +#define JH7110_ISP_MODULE_DBC_SETTING			(1U << 5)
> +/* Denoise YUV */
> +#define JH7110_ISP_MODULE_DNYUV_SETTING			(1U << 6)
> +/* RGB Gamma */
> +#define JH7110_ISP_MODULE_GMARGB_SETTING		(1U << 7)
> +/* Lens Correction Cosine Fourth */
> +#define JH7110_ISP_MODULE_LCCF_SETTING			(1U << 8)
> +/* Optical Black Correction */
> +#define JH7110_ISP_MODULE_OBC_SETTING			(1U << 9)
> +/* Opto-Electric Conversion Function */
> +#define JH7110_ISP_MODULE_OECF_SETTING			(1U << 10)
> +/* RGB To YUV */
> +#define JH7110_ISP_MODULE_R2Y_SETTING			(1U << 11)
> +/* Saturation */
> +#define JH7110_ISP_MODULE_SAT_SETTING			(1U << 12)
> +/* Sharpen */
> +#define JH7110_ISP_MODULE_SHARP_SETTING			(1U << 13)
> +/* Y Curve */
> +#define JH7110_ISP_MODULE_YCRV_SETTING			(1U << 14)
> +/* Statistics Collection */
> +#define JH7110_ISP_MODULE_SC_SETTING			(1U << 15)
> +
> +/**
> + * struct jh7110_isp_wb_gain - auto white balance gain
> + *
> + * @gain_r: gain value for red component.
> + * @gain_g: gain value for green component.
> + * @gain_b: gain value for blue component.
> + */
> +struct jh7110_isp_wb_gain {
> +	__u16 gain_r;
> +	__u16 gain_g;
> +	__u16 gain_b;
> +};
> +
> +/**
> + * struct jh7110_isp_wb_setting - Configuration used by auto white balance gain
> + *
> + * @enabled: enabled setting flag.
> + * @gains: auto white balance gain setting.
> + */
> +struct jh7110_isp_wb_setting {
> +	__u32 enabled;
> +	struct jh7110_isp_wb_gain gains;
> +};
> +
> +/**
> + * struct jh7110_isp_car_setting - Configuration used by color artifact removal
> + *
> + * @enabled: enabled setting flag.
> + */
> +struct jh7110_isp_car_setting {
> +	__u32 enabled;
> +};
> +
> +/**
> + * struct jh7110_isp_ccm_smlow - Color correction matrix
> + *
> + * @ccm: color transform matrix with size 3 by 3.
> + * @offsets: the offsets of R, G, B after the transform by the ccm.
> + */
> +struct jh7110_isp_ccm_smlow {
> +	__s32 ccm[3][3];
> +	__s32 offsets[3];
> +};
> +
> +/**
> + * struct jh7110_isp_ccm_setting - Configuration used by color correction matrix
> + *
> + * @enabled: enabled setting flag.
> + * @ccm_smlow: Color correction matrix.
> + */
> +struct jh7110_isp_ccm_setting {
> +	__u32 enabled;
> +	struct jh7110_isp_ccm_smlow ccm_smlow;
> +};
> +
> +/**
> + * struct jh7110_isp_cfa_params - demosaic parameters
> + *
> + * @hv_width: detail smooth factor
> + * @cross_cov: Cross covariance weighting.
> + */
> +struct jh7110_isp_cfa_params {
> +	__s32 hv_width;
> +	__s32 cross_cov;
> +};
> +
> +/**
> + * struct jh7110_isp_cfa_params - Configuration used by demosaic module
> + *
> + * @enabled: enabled setting flag.
> + * @settings: demosaic parameters.
> + */
> +struct jh7110_isp_cfa_setting {
> +	__u32 enabled;
> +	struct jh7110_isp_cfa_params settings;
> +};
> +
> +/**
> + * struct jh7110_isp_ctc_params - crosstalk remove parameters
> + *
> + * @saf_mode: smooth area filter mode.
> + * @daf_mode: detail area filter mode.
> + * @max_gt: the threshold for imbalance detection when pixel intensity is close to maximum.
> + * @min_gt: the threshold for imbalance detection when pixel intensity is close to 0.
> + */
> +struct jh7110_isp_ctc_params {
> +	__u8 saf_mode;
> +	__u8 daf_mode;
> +	__s32 max_gt;
> +	__s32 min_gt;
> +};
> +
> +/**
> + * struct jh7110_isp_ctc_params - Configuration used by crosstalk remove
> + *
> + * @enabled: enabled setting flag.
> + * @settings: corsstakl remove parameters.

corsstakl -> crosstalk

> + */
> +struct jh7110_isp_ctc_setting {
> +	__u32 enabled;
> +	struct jh7110_isp_ctc_params settings;
> +};
> +
> +/**
> + * struct jh7110_isp_dbc_params - defect pixels correction parameters
> + *
> + * @bad_gt: bad pixel threshold for the green channel.
> + * @bad_xt: bad pixel threshold for the red and blue channels.
> + */
> +struct jh7110_isp_dbc_params {
> +	__s32 bad_gt;
> +	__s32 bad_xt;
> +};
> +
> +/**
> + * struct jh7110_isp_dbc_params - Configuration used by defect bad pixels correction
> + *
> + * @enabled: enabled setting flag.
> + * @settings: defect pixels correction parameters.
> + */
> +struct jh7110_isp_dbc_setting {
> +	__u32 enabled;
> +	struct jh7110_isp_dbc_params settings;
> +};
> +
> +/**
> + * struct jh7110_isp_dnyuv_params - yuv domain denoise parameters
> + *
> + * @y_sweight: ten coefficients of 7x7 spatial filter for Y channel.
> + * @y_curve: intensity difference (similarity) weight lookup table for Y channel.
> + * @uv_sweight: ten coefficients of 7x7 spatial filter for U and V channel.
> + * @uv_curve: intensity difference (similarity) weight lookup table for U and V channel.
> + */
> +struct jh7110_isp_dnyuv_params {
> +	__u8 y_sweight[10];
> +	__u16 y_curve[7];
> +	__u8 uv_sweight[10];
> +	__u16 uv_curve[7];
> +};
> +
> +/**
> + * struct jh7110_isp_dnyuv_params - Configuration used by yuv domain denoise
> + *
> + * @enabled: enabled setting flag.
> + * @settings: yuv domain denoise parameters.
> + */
> +struct jh7110_isp_dnyuv_setting {
> +	__u32 enabled;
> +	struct jh7110_isp_dnyuv_params settings;
> +};
> +
> +/**
> + * struct jh7110_isp_gmargb_point - RGB Gamma point
> + *
> + * @g_val: RGB gamma value.
> + * @sg_val: RGB gamma slope value.
> + */
> +struct jh7110_isp_gmargb_point {
> +	__u16 g_val;
> +	__u16 sg_val;
> +};
> +
> +/**
> + * struct jh7110_isp_gmargb_setting - Configuration used by RGB gamma
> + *
> + * @enabled: enabled setting flag.
> + * @curve: RGB Gamma point table.
> + */
> +struct jh7110_isp_gmargb_setting {
> +	__u32 enabled;
> +	struct jh7110_isp_gmargb_point curve[15];
> +};
> +
> +/**
> + * struct jh7110_isp_lccf_circle - len circle
> + *
> + * @center_x: center X distance from capture window.
> + * @center_y: center Y distance from capture window.
> + * @radius: len circle radius.
> + */
> +struct jh7110_isp_lccf_circle {
> +	__s16 center_x;
> +	__s16 center_y;
> +	__u8 radius;
> +};
> +
> +/**
> + * struct jh7110_isp_lccf_curve_param - lens correction cosine fourth curve param
> + *
> + * @f1: F1 parameter.
> + * @f2: F2 parameter.
> + */
> +struct jh7110_isp_lccf_curve_param {
> +	__s16 f1;
> +	__s16 f2;
> +};
> +
> +/**
> + * struct jh7110_isp_lccf_setting - Configuration used by lens correction cosine fourth
> + *
> + * @enabled: enabled setting flag.
> + * @circle: len circle.
> + * @r_param: lens correction cosine fourth curve param for Bayer pattern R.
> + * @gr_param: lens correction cosine fourth curve param for Bayer pattern Gr.
> + * @gb_param: lens correction cosine fourth curve param for Bayer pattern Gb.
> + * @b_param: lens correction cosine fourth curve param for Bayer pattern B.
> + */
> +struct jh7110_isp_lccf_setting {
> +	__u32 enabled;
> +	struct jh7110_isp_lccf_circle circle;
> +	struct jh7110_isp_lccf_curve_param r_param;
> +	struct jh7110_isp_lccf_curve_param gr_param;
> +	struct jh7110_isp_lccf_curve_param gb_param;
> +	struct jh7110_isp_lccf_curve_param b_param;
> +};
> +
> +/**
> + * struct jh7110_isp_obc_win_size - optical balck correction window size

balck -> black

> + *
> + * @width: window width.
> + * @height: window height.
> + */
> +struct jh7110_isp_obc_win_size {
> +	__u32 width;
> +	__u32 height;
> +};
> +
> +/**
> + * struct jh7110_isp_obc_gain - optical balck correction symbol gain

Ditto. There are a lot more of these, so please do a search-and-replace.

> + *
> + * @tl_gain: gain at point A for symbol.
> + * @tr_gain: gain at point B for symbol.
> + * @bl_gain: gain at point C for symbol.
> + * @br_gain: gain at point D for symbol.
> + */
> +struct jh7110_isp_obc_gain {
> +	__u8 tl_gain;
> +	__u8 tr_gain;
> +	__u8 bl_gain;
> +	__u8 br_gain;
> +};
> +
> +/**
> + * struct jh7110_isp_obc_offset - optical balck correction symbol offset
> + *
> + * @tl_offset: offset at point A for symbol.
> + * @tr_offset: offset at point B for symbol.
> + * @bl_offset: offset at point C for symbol.
> + * @br_offset: offset at point D for symbol.
> + */
> +struct jh7110_isp_obc_offset {
> +	__u8 tl_offset;
> +	__u8 tr_offset;
> +	__u8 bl_offset;
> +	__u8 br_offset;
> +};
> +
> +/**
> + * struct jh7110_isp_obc_setting - Configuration used by optical balck correction
> + *
> + * @enabled: enabled setting flag.
> + * @win_size: optical balck correction window size.
> + * @gain: optical balck correction symbol gain.
> + * @offset: optical balck correction symbol offset.
> + */
> +struct jh7110_isp_obc_setting {
> +	__u32 enabled;
> +	struct jh7110_isp_obc_win_size win_size;
> +	struct jh7110_isp_obc_gain gain[4];
> +	struct jh7110_isp_obc_offset offset[4];
> +};
> +
> +/**
> + * struct jh7110_isp_oecf_point - oecf curve
> + *
> + * @x: x coordinate.
> + * @y: y coordinate.
> + * @slope: the slope between this point and the next point.
> + */
> +struct jh7110_isp_oecf_point {
> +	__u16 x;
> +	__u16 y;
> +	__s16 slope;
> +};
> +
> +/**
> + * struct jh7110_isp_oecf_setting - Configuration used by opto-electric conversion function
> + *
> + * @enabled: enabled setting flag.
> + * @r_curve: red pixel oecf curve.
> + * @gr_curve: green pixel oecf curve in GR line.
> + * @gb_curve: green pixel oecf curve in GB line.
> + * @b_curve: blue pixel oecf curve.
> + */
> +struct jh7110_isp_oecf_setting {
> +	__u32 enabled;
> +	struct jh7110_isp_oecf_point r_curve[16];
> +	struct jh7110_isp_oecf_point gr_curve[16];
> +	struct jh7110_isp_oecf_point gb_curve[16];
> +	struct jh7110_isp_oecf_point b_curve[16];
> +};
> +
> +/**
> + * struct jh7110_isp_r2y_matrix - RGB to YUV color conversion matrix
> + *
> + * @m: The 3x3 color conversion matrix coefficient.
> + */
> +struct jh7110_isp_r2y_matrix {
> +	__s16 m[9];
> +};
> +
> +/**
> + * struct jh7110_isp_r2y_setting - Configuration used by RGB To YUV
> + *
> + * @enabled: enabled setting flag.
> + * @matrix: RGB to YUV color conversion matrix.
> + */
> +struct jh7110_isp_r2y_setting {
> +	__u32 enabled;
> +	struct jh7110_isp_r2y_matrix matrix;
> +};
> +
> +/**
> + * struct jh7110_isp_sat_curve - Saturation curve
> + *
> + * @yi_min: the minimum input Y value.
> + * @yo_ir: the ratio of Y output range to input range.
> + * @yo_min: the minimum output Y value.
> + * @yo_max: the maximum output Y value.
> + */
> +struct jh7110_isp_sat_curve {
> +	__s16 yi_min;
> +	__s16 yo_ir;
> +	__s16 yo_min;
> +	__s16 yo_max;
> +};
> +
> +/**
> + * struct jh7110_isp_sat_hue_info - Chroma Saturation Hue Factor
> + *
> + * @cos: COS hue factor.
> + * @sin: SIN hue factor.
> + */
> +struct jh7110_isp_sat_hue_info {
> +	__s16 cos;
> +	__s16 sin;
> +};
> +
> +/**
> + * struct jh7110_isp_sat_info - Saturation information
> + *
> + * @gain_cmab: Chroma saturation magnitude amplification base for gain.
> + * @gain_cmmd: Chroma saturation magnitude amplification delta for gain.
> + * @threshold_cmb: Chroma saturation magnitude base threshold.
> + * @threshold_cmd: Chroma saturation magbitude delta threshold.

magbitude -> magnitude

> + * @offset_u: Chroma saturation U offset.
> + * @offset_v: Chroma saturation V offset.
> + * @cmsf: Chroma saturation magbitude scaling factor.

Ditto.

> + */
> +struct jh7110_isp_sat_info {
> +	__s16 gain_cmab;
> +	__s16 gain_cmmd;
> +	__s16 threshold_cmb;
> +	__s16 threshold_cmd;
> +	__s16 offset_u;
> +	__s16 offset_v;
> +	__s16 cmsf;
> +};
> +
> +/**
> + * struct jh7110_isp_sat_setting - Configuration used by Saturation
> + *
> + * @enabled: enabled setting flag.
> + * @curve: Saturation curve.
> + * @hue_info: Chroma Saturation Hue Factor.
> + * @sat_info: Saturation information.s
> + */
> +struct jh7110_isp_sat_setting {
> +	__u32 enabled;
> +	struct jh7110_isp_sat_curve curve;
> +	struct jh7110_isp_sat_hue_info hue_info;
> +	struct jh7110_isp_sat_info sat_info;
> +};
> +
> +/**
> + * struct jh7110_isp_sharp_weight - Sharpe weight
> + *
> + * @weight: Sharpen filter weight.
> + * @recip_wei_sum: Sharpen amplification filter weight normalization factor.
> + */
> +struct jh7110_isp_sharp_weight {
> +	__u8 weight[15];
> +	__u32 recip_wei_sum;
> +};
> +
> +/**
> + * struct jh7110_isp_sharp_strength - Sharpen strength
> + *
> + * @diff: Sharpen Edge amplification delta level.
> + * @f: Sharpen Edge amplification factor.
> + * @s: Sharpen Edge amplification factor slope.
> + */
> +struct jh7110_isp_sharp_strength {
> +	__s16 diff[4];
> +	__s16 f[3];
> +	__s32 s[3];
> +};
> +
> +/**
> + * struct jh7110_isp_sharp_setting - Configuration used by Sharpen
> + *
> + * @enabled: enabled setting flag.
> + * @weight: Sharpe weight.
> + * @strength: Sharpen strength.
> + * @pdirf: Positive Factor Multiplier.
> + * @ndirf: Negative Factor Multiplier.
> + */
> +struct jh7110_isp_sharp_setting {
> +	__u32 enabled;
> +	struct jh7110_isp_sharp_weight weight;
> +	struct jh7110_isp_sharp_strength strength;
> +	__s8 pdirf;
> +	__s8 ndirf;
> +};
> +
> +/**
> + * struct jh7110_isp_ycrv_curve - Y Curve parameters table
> + *
> + * @y: Y curve L parameters value.
> + */
> +struct jh7110_isp_ycrv_curve {
> +	__s16 y[64];
> +};
> +
> +/**
> + * struct jh7110_isp_ycrv_setting - Configuration used by Y Curve
> + *
> + * @enabled: enabled setting flag.
> + * @curve: Y Curve parameters table.
> + */
> +struct jh7110_isp_ycrv_setting {
> +	__u32 enabled;
> +	struct jh7110_isp_ycrv_curve curve;
> +};
> +
> +/**
> + * struct jh7110_isp_sc_config - statistics collection crop configure
> + *
> + * @h_start: Horizontal starting point for frame cropping.
> + * @v_start: Vertical starting point for frame cropping.
> + * @sw_width: Width of statistics collection sub-window.
> + * @sw_height: Height of statistics collection sub-window.
> + * @hperiod: Horizontal period.
> + * @hkeep: Horizontal keep.
> + * @vperiod: Vertical period.
> + * @vkeep: Vertical keep.
> + */
> +struct jh7110_isp_sc_config {
> +	__u16 h_start;
> +	__u16 v_start;
> +	__u8 sw_width;
> +	__u8 sw_height;
> +	__u8 hperiod;
> +	__u8 hkeep;
> +	__u8 vperiod;
> +	__u8 vkeep;
> +};
> +
> +/**
> + * struct jh7110_isp_sc_af_config - statistics collection auto focus configure
> + *
> + * @es_hor_mode: Horizontal mode.
> + * @es_sum_mode: sum mode.
> + * @hor_en: Horizontal enable.
> + * @ver_en: Vertical enable.
> + * @es_ver_thr: Vertical threshold.
> + * @es_hor_thr: Horizontal threshold.
> + */
> +struct jh7110_isp_sc_af_config {
> +	__u8 es_hor_mode;
> +	__u8 es_sum_mode;
> +	__u8 hor_en;
> +	__u8 ver_en;
> +	__u8 es_ver_thr;
> +	__u16 es_hor_thr;
> +};
> +
> +/**
> + * struct jh7110_isp_sc_awb_ps - statistics collection auto white balance pixel sum
> + *
> + * @awb_ps_rl: Lower boundary of R value for pixel sum.
> + * @awb_ps_ru: Upper boundary of R value for pixel sum.
> + * @awb_ps_gl: Lower boundary of G value for pixel sum.
> + * @awb_ps_gu: Upper boundary of G value for pixel sum.
> + * @awb_ps_bl: Lower boundary of B value for pixel sum.
> + * @awb_ps_bu: Upper boundary of B value for pixel sum.
> + * @awb_ps_yl: Lower boundary of Y value for pixel sum.
> + * @awb_ps_yu: Upper boundary of Y value for pixel sum.
> + * @awb_ps_grl: Lower boundary of G/R ratio for pixel sum.
> + * @awb_ps_gru: Upper boundary of G/R ratio for pixel sum.
> + * @awb_ps_gbl: Lower boundary of G/B ratio for pixel sum.
> + * @awb_ps_gbu: Upper boundary of G/B ratio for pixel sum.
> + * @awb_ps_grbl: Lower boundary of (Gr/R + b/a * Gb/B) for pixel sum.
> + * @awb_ps_grbu: Upper boundary of (Gr/R + b/a * Gb/B) for pixel sum.
> + */
> +struct jh7110_isp_sc_awb_ps {
> +	__u8 awb_ps_rl;
> +	__u8 awb_ps_ru;
> +	__u8 awb_ps_gl;
> +	__u8 awb_ps_gu;
> +	__u8 awb_ps_bl;
> +	__u8 awb_ps_bu;
> +	__u8 awb_ps_yl;
> +	__u8 awb_ps_yu;
> +	__u16 awb_ps_grl;
> +	__u16 awb_ps_gru;
> +	__u16 awb_ps_gbl;
> +	__u16 awb_ps_gbu;
> +	__u16 awb_ps_grbl;
> +	__u16 awb_ps_grbu;
> +};
> +
> +/**
> + * struct jh7110_isp_sc_awb_ws - statistics collection auto white balance weight sum
> + *
> + * @awb_ws_rl: Lower boundary of R value for weight sum.
> + * @awb_ws_ru: Upper boundary of R value for weight sum.
> + * @awb_ws_grl: Lower boundary of Gr value for weight sum.
> + * @awb_ws_gru: Upper boundary of Gr value for weight sum.
> + * @awb_ws_gbl: Lower boundary of Gb value for weight sum.
> + * @awb_ws_gbu: Upper boundary of Gb value for weight sum.
> + * @awb_ws_bl: Lower boundary of B value for weight sum.
> + * @awb_ws_bu: Upper boundary of B value for weight sum.
> + */
> +struct jh7110_isp_sc_awb_ws {
> +	__u8 awb_ws_rl;
> +	__u8 awb_ws_ru;
> +	__u8 awb_ws_grl;
> +	__u8 awb_ws_gru;
> +	__u8 awb_ws_gbl;
> +	__u8 awb_ws_gbu;
> +	__u8 awb_ws_bl;
> +	__u8 awb_ws_bu;
> +};
> +
> +/**
> + * struct jh7110_isp_sc_awb_point - statistics collection auto white balance point
> + *
> + * @weight: Weighting value at point.
> + */
> +struct jh7110_isp_sc_awb_point {
> +	__u8 weight;
> +};
> +
> +/**
> + * struct jh7110_isp_sc_awb_config - statistics collection auto white balance configure
> + *
> + * @ps_config: statistics collection auto white balance pixel sum.
> + * @awb_ps_grb_ba: auto white balance b/a value.
> + * @sel: input mux for statistics collection auto white balance.
> + * @ws_config: statistics collection auto white balance weight sum.
> + * @awb_cw: Weighting value at 13x13 point.
> + * @pts: statistics collection auto white balance point.
> + */
> +struct jh7110_isp_sc_awb_config {
> +	struct jh7110_isp_sc_awb_ps ps_config;
> +	__u8 awb_ps_grb_ba;
> +	__u8 sel;
> +	struct jh7110_isp_sc_awb_ws ws_config;
> +	__u8 awb_cw[169];
> +	struct jh7110_isp_sc_awb_point pts[17];
> +};
> +
> +/**
> + * struct jh7110_isp_sc_setting - Configuration used by statistics collection
> + *
> + * @enabled: enabled setting flag.
> + * @crop_config: statistics collection crop configure.
> + * @af_config: statistics collection auto focus configure.
> + * @awb_config: statistics collection auto white balance configure.
> + */
> +struct jh7110_isp_sc_setting {
> +	__u32 enabled;
> +	struct jh7110_isp_sc_config crop_config;
> +	struct jh7110_isp_sc_af_config af_config;
> +	struct jh7110_isp_sc_awb_config awb_config;
> +};
> +
> +/**
> + * struct jh7110_isp_params_buffer - StarFive JH7110 ISP Parameters Meta Data
> + *
> + * @enable_setting: enabled setting module (JH7110_ISP_MODULE_* definitions).
> + * @wb_setting: Configuration used by auto white balance gain.
> + * @car_setting: Configuration used by color artifact removal.
> + * @ccm_setting: Configuration used by color correction matrix.
> + * @cfa_setting: Configuration used by demosaic module.
> + * @ctc_setting: Configuration used by crosstalk remove.
> + * @dbc_setting: Configuration used by defect bad pixels correction.
> + * @dnyuv_setting: Configuration used by yuv domain denoise.
> + * @gmargb_setting: Configuration used by RGB gamma.
> + * @lccf_setting: Configuration used by lens correction cosine fourth.
> + * @obc_setting: Configuration used by optical balck compensation.
> + * @oecf_setting: Configuration used by opto-electric conversion function.
> + * @r2y_setting: Configuration used by RGB To YUV.
> + * @sat_setting: Configuration used by Saturation.
> + * @sharp_setting: Configuration used by Sharpen.
> + * @ycrv_setting: Configuration used by Y Curve.
> + * @sc_setting: Configuration used by statistics collection.
> + */
> +struct jh7110_isp_params_buffer {
> +	__u32 enable_setting;
> +	struct jh7110_isp_wb_setting wb_setting;
> +	struct jh7110_isp_car_setting car_setting;
> +	struct jh7110_isp_ccm_setting ccm_setting;
> +	struct jh7110_isp_cfa_setting cfa_setting;
> +	struct jh7110_isp_ctc_setting ctc_setting;
> +	struct jh7110_isp_dbc_setting dbc_setting;
> +	struct jh7110_isp_dnyuv_setting dnyuv_setting;
> +	struct jh7110_isp_gmargb_setting gmargb_setting;
> +	struct jh7110_isp_lccf_setting lccf_setting;
> +	struct jh7110_isp_obc_setting obc_setting;
> +	struct jh7110_isp_oecf_setting oecf_setting;
> +	struct jh7110_isp_r2y_setting r2y_setting;
> +	struct jh7110_isp_sat_setting sat_setting;
> +	struct jh7110_isp_sharp_setting sharp_setting;
> +	struct jh7110_isp_ycrv_setting ycrv_setting;
> +	struct jh7110_isp_sc_setting sc_setting;
> +};
> +
> +/**
> + * Statistics Collection Meta Data Flag
> + */
> +#define JH7110_ISP_SC_FALG_AE_AF		0x0
> +#define JH7110_ISP_SC_FALG_AWB			0xffff
> +
> +#pragma pack(1)
> +
> +/**
> + * struct jh7110_isp_sc_buffer - StarFive JH7110 ISP Statistics Collection Meta Data
> + *
> + * @y_histogram: Y histogram data for saturation control.
> + * @reserv0: reserve byte.
> + * @bright_sc: bright statistic. If flag is JH7110_ISP_SC_FALG_AE_AF, This field is
> + *             saved auto exposure and auto focus. If flag is JH7110_ISP_SC_FALG_AWB,
> + *             This field is saved auto white balance.
> + * @reserv1: reserve byte.
> + * @ae_hist_y: Y histogram for auto exposure.
> + * @reserv2: reserve byte.
> + * @flag: Statistics Collection Meta Data Flag (JH7110_ISP_SC_FALG_* definitions)
> + */
> +struct jh7110_isp_sc_buffer {
> +	__u32 y_histogram[64];
> +	__u32 reserv0[33];
> +	__u32 bright_sc[4096];
> +	__u32 reserv1[96];
> +	__u32 ae_hist_y[128];
> +	__u32 reserv2[511];
> +	__u16 flag;
> +};
> +
> +#pragma pack()
> +
> +#endif

Regards,

	Hans

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