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/* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR MIT) */
/*
 * Rockchip ISP1 userspace API
 * Copyright (C) 2017 Rockchip Electronics Co., Ltd.
 */

#ifndef _RKISP1_CONFIG_H
#define _RKISP1_CONFIG_H

#include <linux/types.h>

/* Defect Pixel Cluster Detection */
#define RKISP1_CIF_ISP_MODULE_DPCC		(1U << 0)
/* Black Level Subtraction */
#define RKISP1_CIF_ISP_MODULE_BLS		(1U << 1)
/* Sensor De-gamma */
#define RKISP1_CIF_ISP_MODULE_SDG		(1U << 2)
/* Histogram statistics configuration */
#define RKISP1_CIF_ISP_MODULE_HST		(1U << 3)
/* Lens Shade Control */
#define RKISP1_CIF_ISP_MODULE_LSC		(1U << 4)
/* Auto White Balance Gain */
#define RKISP1_CIF_ISP_MODULE_AWB_GAIN		(1U << 5)
/* Filter */
#define RKISP1_CIF_ISP_MODULE_FLT		(1U << 6)
/* Bayer Demosaic */
#define RKISP1_CIF_ISP_MODULE_BDM		(1U << 7)
/* Cross Talk */
#define RKISP1_CIF_ISP_MODULE_CTK		(1U << 8)
/* Gamma Out Curve */
#define RKISP1_CIF_ISP_MODULE_GOC		(1U << 9)
/* Color Processing */
#define RKISP1_CIF_ISP_MODULE_CPROC		(1U << 10)
/* Auto Focus Control statistics configuration */
#define RKISP1_CIF_ISP_MODULE_AFC		(1U << 11)
/* Auto White Balancing statistics configuration */
#define RKISP1_CIF_ISP_MODULE_AWB		(1U << 12)
/* Image Effect */
#define RKISP1_CIF_ISP_MODULE_IE		(1U << 13)
/* Auto Exposure Control statistics configuration */
#define RKISP1_CIF_ISP_MODULE_AEC		(1U << 14)
/* Wide Dynamic Range */
#define RKISP1_CIF_ISP_MODULE_WDR		(1U << 15)
/* Denoise Pre-Filter */
#define RKISP1_CIF_ISP_MODULE_DPF		(1U << 16)
/* Denoise Pre-Filter Strength */
#define RKISP1_CIF_ISP_MODULE_DPF_STRENGTH	(1U << 17)

#define RKISP1_CIF_ISP_CTK_COEFF_MAX            0x100
#define RKISP1_CIF_ISP_CTK_OFFSET_MAX           0x800

#define RKISP1_CIF_ISP_AE_MEAN_MAX_V10		25
#define RKISP1_CIF_ISP_AE_MEAN_MAX_V12		81
#define RKISP1_CIF_ISP_AE_MEAN_MAX		RKISP1_CIF_ISP_AE_MEAN_MAX_V12

#define RKISP1_CIF_ISP_HIST_BIN_N_MAX_V10	16
#define RKISP1_CIF_ISP_HIST_BIN_N_MAX_V12	32
#define RKISP1_CIF_ISP_HIST_BIN_N_MAX		RKISP1_CIF_ISP_HIST_BIN_N_MAX_V12

#define RKISP1_CIF_ISP_AFM_MAX_WINDOWS          3
#define RKISP1_CIF_ISP_DEGAMMA_CURVE_SIZE       17

#define RKISP1_CIF_ISP_BDM_MAX_TH               0xff

/*
 * Black level compensation
 */
/* maximum value for horizontal start address */
#define RKISP1_CIF_ISP_BLS_START_H_MAX             0x00000fff
/* maximum value for horizontal stop address */
#define RKISP1_CIF_ISP_BLS_STOP_H_MAX              0x00000fff
/* maximum value for vertical start address */
#define RKISP1_CIF_ISP_BLS_START_V_MAX             0x00000fff
/* maximum value for vertical stop address */
#define RKISP1_CIF_ISP_BLS_STOP_V_MAX              0x00000fff
/* maximum is 2^18 = 262144*/
#define RKISP1_CIF_ISP_BLS_SAMPLES_MAX             0x00000012
/* maximum value for fixed black level */
#define RKISP1_CIF_ISP_BLS_FIX_SUB_MAX             0x00000fff
/* minimum value for fixed black level */
#define RKISP1_CIF_ISP_BLS_FIX_SUB_MIN             0xfffff000
/* 13 bit range (signed)*/
#define RKISP1_CIF_ISP_BLS_FIX_MASK                0x00001fff

/*
 * Automatic white balance measurements
 */
#define RKISP1_CIF_ISP_AWB_MAX_GRID                1
#define RKISP1_CIF_ISP_AWB_MAX_FRAMES              7

/*
 * Gamma out
 */
/* Maximum number of color samples supported */
#define RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES_V10   17
#define RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES_V12   34
#define RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES       RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES_V12

/*
 * Lens shade correction
 */
#define RKISP1_CIF_ISP_LSC_SECTORS_TBL_SIZE        8

/*
 * The following matches the tuning process,
 * not the max capabilities of the chip.
 */
#define RKISP1_CIF_ISP_LSC_SAMPLES_MAX             17

/*
 * Histogram calculation
 */
#define RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE_V10 25
#define RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE_V12 81
#define RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE     RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE_V12

/*
 * Defect Pixel Cluster Correction
 */
#define RKISP1_CIF_ISP_DPCC_METHODS_MAX       3

/*
 * Denoising pre filter
 */
#define RKISP1_CIF_ISP_DPF_MAX_NLF_COEFFS      17
#define RKISP1_CIF_ISP_DPF_MAX_SPATIAL_COEFFS  6

/*
 * Measurement types
 */
#define RKISP1_CIF_ISP_STAT_AWB           (1U << 0)
#define RKISP1_CIF_ISP_STAT_AUTOEXP       (1U << 1)
#define RKISP1_CIF_ISP_STAT_AFM           (1U << 2)
#define RKISP1_CIF_ISP_STAT_HIST          (1U << 3)

/**
 * enum rkisp1_cif_isp_version - ISP variants
 *
 * @RKISP1_V10: used at least in rk3288 and rk3399
 * @RKISP1_V11: declared in the original vendor code, but not used
 * @RKISP1_V12: used at least in rk3326 and px30
 * @RKISP1_V13: used at least in rk1808
 */
enum rkisp1_cif_isp_version {
	RKISP1_V10 = 10,
	RKISP1_V11,
	RKISP1_V12,
	RKISP1_V13,
};

enum rkisp1_cif_isp_histogram_mode {
	RKISP1_CIF_ISP_HISTOGRAM_MODE_DISABLE,
	RKISP1_CIF_ISP_HISTOGRAM_MODE_RGB_COMBINED,
	RKISP1_CIF_ISP_HISTOGRAM_MODE_R_HISTOGRAM,
	RKISP1_CIF_ISP_HISTOGRAM_MODE_G_HISTOGRAM,
	RKISP1_CIF_ISP_HISTOGRAM_MODE_B_HISTOGRAM,
	RKISP1_CIF_ISP_HISTOGRAM_MODE_Y_HISTOGRAM
};

enum rkisp1_cif_isp_awb_mode_type {
	RKISP1_CIF_ISP_AWB_MODE_MANUAL,
	RKISP1_CIF_ISP_AWB_MODE_RGB,
	RKISP1_CIF_ISP_AWB_MODE_YCBCR
};

enum rkisp1_cif_isp_flt_mode {
	RKISP1_CIF_ISP_FLT_STATIC_MODE,
	RKISP1_CIF_ISP_FLT_DYNAMIC_MODE
};

/**
 * enum rkisp1_cif_isp_exp_ctrl_autostop - stop modes
 * @RKISP1_CIF_ISP_EXP_CTRL_AUTOSTOP_0: continuous measurement
 * @RKISP1_CIF_ISP_EXP_CTRL_AUTOSTOP_1: stop measuring after a complete frame
 */
enum rkisp1_cif_isp_exp_ctrl_autostop {
	RKISP1_CIF_ISP_EXP_CTRL_AUTOSTOP_0 = 0,
	RKISP1_CIF_ISP_EXP_CTRL_AUTOSTOP_1 = 1,
};

/**
 * enum rkisp1_cif_isp_exp_meas_mode - Exposure measure mode
 * @RKISP1_CIF_ISP_EXP_MEASURING_MODE_0: Y = 16 + 0.25R + 0.5G + 0.1094B
 * @RKISP1_CIF_ISP_EXP_MEASURING_MODE_1: Y = (R + G + B) x (85/256)
 */
enum rkisp1_cif_isp_exp_meas_mode {
	RKISP1_CIF_ISP_EXP_MEASURING_MODE_0,
	RKISP1_CIF_ISP_EXP_MEASURING_MODE_1,
};

/*---------- PART1: Input Parameters ------------*/

/**
 * struct rkisp1_cif_isp_window -  measurement window.
 *
 * Measurements are calculated per window inside the frame.
 * This struct represents a window for a measurement.
 *
 * @h_offs: the horizontal offset of the window from the left of the frame in pixels.
 * @v_offs: the vertical offset of the window from the top of the frame in pixels.
 * @h_size: the horizontal size of the window in pixels
 * @v_size: the vertical size of the window in pixels.
 */
struct rkisp1_cif_isp_window {
	__u16 h_offs;
	__u16 v_offs;
	__u16 h_size;
	__u16 v_size;
};

/**
 * struct rkisp1_cif_isp_bls_fixed_val - BLS fixed subtraction values
 *
 * The values will be subtracted from the sensor
 * values. Therefore a negative value means addition instead of subtraction!
 *
 * @r: Fixed (signed!) subtraction value for Bayer pattern R
 * @gr: Fixed (signed!) subtraction value for Bayer pattern Gr
 * @gb: Fixed (signed!) subtraction value for Bayer pattern Gb
 * @b: Fixed (signed!) subtraction value for Bayer pattern B
 */
struct rkisp1_cif_isp_bls_fixed_val {
	__s16 r;
	__s16 gr;
	__s16 gb;
	__s16 b;
};

/**
 * struct rkisp1_cif_isp_bls_config - Configuration used by black level subtraction
 *
 * @enable_auto: Automatic mode activated means that the measured values
 *		 are subtracted. Otherwise the fixed subtraction
 *		 values will be subtracted.
 * @en_windows: enabled window
 * @bls_window1: Measurement window 1 size
 * @bls_window2: Measurement window 2 size
 * @bls_samples: Set amount of measured pixels for each Bayer position
 *		 (A, B,C and D) to 2^bls_samples.
 * @fixed_val: Fixed subtraction values
 */
struct rkisp1_cif_isp_bls_config {
	__u8 enable_auto;
	__u8 en_windows;
	struct rkisp1_cif_isp_window bls_window1;
	struct rkisp1_cif_isp_window bls_window2;
	__u8 bls_samples;
	struct rkisp1_cif_isp_bls_fixed_val fixed_val;
};

/**
 * struct rkisp1_cif_isp_dpcc_methods_config - Methods Configuration used by DPCC
 *
 * Methods Configuration used by Defect Pixel Cluster Correction
 *
 * @method: Method enable bits
 * @line_thresh: Line threshold
 * @line_mad_fac: Line MAD factor
 * @pg_fac: Peak gradient factor
 * @rnd_thresh: Rank Neighbor Difference threshold
 * @rg_fac: Rank gradient factor
 */
struct rkisp1_cif_isp_dpcc_methods_config {
	__u32 method;
	__u32 line_thresh;
	__u32 line_mad_fac;
	__u32 pg_fac;
	__u32 rnd_thresh;
	__u32 rg_fac;
};

/**
 * struct rkisp1_cif_isp_dpcc_config - Configuration used by DPCC
 *
 * Configuration used by Defect Pixel Cluster Correction
 *
 * @mode: dpcc output mode
 * @output_mode: whether use hard coded methods
 * @set_use: stage1 methods set
 * @methods: methods config
 * @ro_limits: rank order limits
 * @rnd_offs: differential rank offsets for rank neighbor difference
 */
struct rkisp1_cif_isp_dpcc_config {
	__u32 mode;
	__u32 output_mode;
	__u32 set_use;
	struct rkisp1_cif_isp_dpcc_methods_config methods[RKISP1_CIF_ISP_DPCC_METHODS_MAX];
	__u32 ro_limits;
	__u32 rnd_offs;
};

/**
 * struct rkisp1_cif_isp_gamma_corr_curve - gamma curve point definition y-axis (output).
 *
 * The reset values define a linear curve which has the same effect as bypass. Reset values are:
 * gamma_y[0] = 0x0000, gamma_y[1] = 0x0100, ... gamma_y[15] = 0x0f00, gamma_y[16] = 0xfff
 *
 * @gamma_y: the values for the y-axis of gamma curve points. Each value is 12 bit.
 */
struct rkisp1_cif_isp_gamma_corr_curve {
	__u16 gamma_y[RKISP1_CIF_ISP_DEGAMMA_CURVE_SIZE];
};

/**
 * struct rkisp1_cif_isp_gamma_curve_x_axis_pnts - De-Gamma Curve definition x increments
 *		(sampling points). gamma_dx0 is for the lower samples (1-8), gamma_dx1 is for the
 *		higher samples (9-16). The reset values for both fields is 0x44444444. This means
 *		that each sample is 4 units away from the previous one on the x-axis.
 *
 * @gamma_dx0: gamma curve sample points definitions. Bits 0:2 for sample 1. Bit 3 unused.
 *		Bits 4:6 for sample 2. bit 7 unused ... Bits 28:30 for sample 8. Bit 31 unused
 * @gamma_dx1: gamma curve sample points definitions. Bits 0:2 for sample 9. Bit 3 unused.
 *		Bits 4:6 for sample 10. bit 7 unused ... Bits 28:30 for sample 16. Bit 31 unused
 */
struct rkisp1_cif_isp_gamma_curve_x_axis_pnts {
	__u32 gamma_dx0;
	__u32 gamma_dx1;
};

/**
 * struct rkisp1_cif_isp_sdg_config - Configuration used by sensor degamma
 *
 * @curve_r: gamma curve point definition axis for red
 * @curve_g: gamma curve point definition axis for green
 * @curve_b: gamma curve point definition axis for blue
 * @xa_pnts: x axis increments
 */
struct rkisp1_cif_isp_sdg_config {
	struct rkisp1_cif_isp_gamma_corr_curve curve_r;
	struct rkisp1_cif_isp_gamma_corr_curve curve_g;
	struct rkisp1_cif_isp_gamma_corr_curve curve_b;
	struct rkisp1_cif_isp_gamma_curve_x_axis_pnts xa_pnts;
};

/**
 * struct rkisp1_cif_isp_lsc_config - Configuration used by Lens shading correction
 *
 * @r_data_tbl: sample table red
 * @gr_data_tbl: sample table green (red)
 * @gb_data_tbl: sample table green (blue)
 * @b_data_tbl: sample table blue
 * @x_grad_tbl: gradient table x
 * @y_grad_tbl: gradient table y
 * @x_size_tbl: size table x
 * @y_size_tbl: size table y
 * @config_width: not used at the moment
 * @config_height: not used at the moment
 */
struct rkisp1_cif_isp_lsc_config {
	__u16 r_data_tbl[RKISP1_CIF_ISP_LSC_SAMPLES_MAX][RKISP1_CIF_ISP_LSC_SAMPLES_MAX];
	__u16 gr_data_tbl[RKISP1_CIF_ISP_LSC_SAMPLES_MAX][RKISP1_CIF_ISP_LSC_SAMPLES_MAX];
	__u16 gb_data_tbl[RKISP1_CIF_ISP_LSC_SAMPLES_MAX][RKISP1_CIF_ISP_LSC_SAMPLES_MAX];
	__u16 b_data_tbl[RKISP1_CIF_ISP_LSC_SAMPLES_MAX][RKISP1_CIF_ISP_LSC_SAMPLES_MAX];

	__u16 x_grad_tbl[RKISP1_CIF_ISP_LSC_SECTORS_TBL_SIZE];