zig

rkisp1-config.h (58367B) - Raw

---

 /* 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
 
 #define RKISP1_CIF_ISP_DPCC_MODE_STAGE1_ENABLE			(1U << 2)
 
 #define RKISP1_CIF_ISP_DPCC_OUTPUT_MODE_STAGE1_INCL_G_CENTER	(1U << 0)
 #define RKISP1_CIF_ISP_DPCC_OUTPUT_MODE_STAGE1_INCL_RB_CENTER	(1U << 1)
 #define RKISP1_CIF_ISP_DPCC_OUTPUT_MODE_STAGE1_G_3X3		(1U << 2)
 #define RKISP1_CIF_ISP_DPCC_OUTPUT_MODE_STAGE1_RB_3X3		(1U << 3)
 
 /* 0-2 for sets 1-3 */
 #define RKISP1_CIF_ISP_DPCC_SET_USE_STAGE1_USE_SET(n)		((n) << 0)
 #define RKISP1_CIF_ISP_DPCC_SET_USE_STAGE1_USE_FIX_SET		(1U << 3)
 
 #define RKISP1_CIF_ISP_DPCC_METHODS_SET_PG_GREEN_ENABLE		(1U << 0)
 #define RKISP1_CIF_ISP_DPCC_METHODS_SET_LC_GREEN_ENABLE		(1U << 1)
 #define RKISP1_CIF_ISP_DPCC_METHODS_SET_RO_GREEN_ENABLE		(1U << 2)
 #define RKISP1_CIF_ISP_DPCC_METHODS_SET_RND_GREEN_ENABLE	(1U << 3)
 #define RKISP1_CIF_ISP_DPCC_METHODS_SET_RG_GREEN_ENABLE		(1U << 4)
 #define RKISP1_CIF_ISP_DPCC_METHODS_SET_PG_RED_BLUE_ENABLE	(1U << 8)
 #define RKISP1_CIF_ISP_DPCC_METHODS_SET_LC_RED_BLUE_ENABLE	(1U << 9)
 #define RKISP1_CIF_ISP_DPCC_METHODS_SET_RO_RED_BLUE_ENABLE	(1U << 10)
 #define RKISP1_CIF_ISP_DPCC_METHODS_SET_RND_RED_BLUE_ENABLE	(1U << 11)
 #define RKISP1_CIF_ISP_DPCC_METHODS_SET_RG_RED_BLUE_ENABLE	(1U << 12)
 
 #define RKISP1_CIF_ISP_DPCC_LINE_THRESH_G(v)			((v) << 0)
 #define RKISP1_CIF_ISP_DPCC_LINE_THRESH_RB(v)			((v) << 8)
 #define RKISP1_CIF_ISP_DPCC_LINE_MAD_FAC_G(v)			((v) << 0)
 #define RKISP1_CIF_ISP_DPCC_LINE_MAD_FAC_RB(v)			((v) << 8)
 #define RKISP1_CIF_ISP_DPCC_PG_FAC_G(v)				((v) << 0)
 #define RKISP1_CIF_ISP_DPCC_PG_FAC_RB(v)			((v) << 8)
 #define RKISP1_CIF_ISP_DPCC_RND_THRESH_G(v)			((v) << 0)
 #define RKISP1_CIF_ISP_DPCC_RND_THRESH_RB(v)			((v) << 8)
 #define RKISP1_CIF_ISP_DPCC_RG_FAC_G(v)				((v) << 0)
 #define RKISP1_CIF_ISP_DPCC_RG_FAC_RB(v)			((v) << 8)
 
 #define RKISP1_CIF_ISP_DPCC_RO_LIMITS_n_G(n, v)			((v) << ((n) * 4))
 #define RKISP1_CIF_ISP_DPCC_RO_LIMITS_n_RB(n, v)		((v) << ((n) * 4 + 2))
 
 #define RKISP1_CIF_ISP_DPCC_RND_OFFS_n_G(n, v)			((v) << ((n) * 4))
 #define RKISP1_CIF_ISP_DPCC_RND_OFFS_n_RB(n, v)			((v) << ((n) * 4 + 2))
 
 /*
  * Denoising pre filter
  */
 #define RKISP1_CIF_ISP_DPF_MAX_NLF_COEFFS      17
 #define RKISP1_CIF_ISP_DPF_MAX_SPATIAL_COEFFS  6
 
 /*
  * Compand
  */
 #define RKISP1_CIF_ISP_COMPAND_NUM_POINTS	64
 
 /*
  * 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. Same number
  *	of entries in grids and histogram as v10.
  * @RKISP1_V12: Used at least in RK3326 and PX30.
  * @RKISP1_V13: Used at least in RK1808. Same number of entries in grids and
  *	histogram as v12.
  * @RKISP1_V_IMX8MP: Used in at least i.MX8MP. Same number of entries in grids
  *	and histogram as v10.
  */
 enum rkisp1_cif_isp_version {
 	RKISP1_V10 = 10,
 	RKISP1_V11,
 	RKISP1_V12,
 	RKISP1_V13,
 	RKISP1_V_IMX8MP,
 };
 
 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 - DPCC methods set configuration
  *
  * This structure stores the configuration of one set of methods for the DPCC
  * algorithm. Multiple methods can be selected in each set (independently for
  * the Green and Red/Blue components) through the @method field, the result is
  * the logical AND of all enabled methods. The remaining fields set thresholds
  * and factors for each method.
  *
  * @method: Method enable bits (RKISP1_CIF_ISP_DPCC_METHODS_SET_*)
  * @line_thresh: Line threshold (RKISP1_CIF_ISP_DPCC_LINE_THRESH_*)
  * @line_mad_fac: Line Mean Absolute Difference factor (RKISP1_CIF_ISP_DPCC_LINE_MAD_FAC_*)
  * @pg_fac: Peak gradient factor (RKISP1_CIF_ISP_DPCC_PG_FAC_*)
  * @rnd_thresh: Rank Neighbor Difference threshold (RKISP1_CIF_ISP_DPCC_RND_THRESH_*)
  * @rg_fac: Rank gradient factor (RKISP1_CIF_ISP_DPCC_RG_FAC_*)
  */
 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. Three sets of methods
  * can be configured and selected through the @set_use field. The result is the
  * logical OR of all enabled sets.
  *
  * @mode: DPCC mode (RKISP1_CIF_ISP_DPCC_MODE_*)
  * @output_mode: Interpolation output mode (RKISP1_CIF_ISP_DPCC_OUTPUT_MODE_*)
  * @set_use: Methods sets selection (RKISP1_CIF_ISP_DPCC_SET_USE_*)
  * @methods: Methods sets configuration
  * @ro_limits: Rank order limits (RKISP1_CIF_ISP_DPCC_RO_LIMITS_*)
  * @rnd_offs: Differential rank offsets for rank neighbor difference (RKISP1_CIF_ISP_DPCC_RND_OFFS_*)
  */
 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];
 	__u16 y_grad_tbl[RKISP1_CIF_ISP_LSC_SECTORS_TBL_SIZE];
 
 	__u16 x_size_tbl[RKISP1_CIF_ISP_LSC_SECTORS_TBL_SIZE];
 	__u16 y_size_tbl[RKISP1_CIF_ISP_LSC_SECTORS_TBL_SIZE];
 	__u16 config_width;
 	__u16 config_height;
 };
 
 /**
  * struct rkisp1_cif_isp_ie_config - Configuration used by image effects
  *
  * @effect: values from 'enum v4l2_colorfx'. Possible values are: V4L2_COLORFX_SEPIA,
  *		V4L2_COLORFX_SET_CBCR, V4L2_COLORFX_AQUA, V4L2_COLORFX_EMBOSS,
  *		V4L2_COLORFX_SKETCH,   V4L2_COLORFX_BW,   V4L2_COLORFX_NEGATIVE
  * @color_sel: bits 0:2 - colors bitmask (001 - blue, 010 - green, 100 - red).
  *		bits 8:15 - Threshold value of the RGB colors for the color selection effect.
  * @eff_mat_1: 3x3 Matrix Coefficients for Emboss Effect 1
  * @eff_mat_2: 3x3 Matrix Coefficients for Emboss Effect 2
  * @eff_mat_3: 3x3 Matrix Coefficients for Emboss 3/Sketch 1
  * @eff_mat_4: 3x3 Matrix Coefficients for Sketch Effect 2
  * @eff_mat_5: 3x3 Matrix Coefficients for Sketch Effect 3
  * @eff_tint: Chrominance increment values of tint (used for sepia effect)
  */
 struct rkisp1_cif_isp_ie_config {
 	__u16 effect;
 	__u16 color_sel;
 	__u16 eff_mat_1;
 	__u16 eff_mat_2;
 	__u16 eff_mat_3;
 	__u16 eff_mat_4;
 	__u16 eff_mat_5;
 	__u16 eff_tint;
 };
 
 /**
  * struct rkisp1_cif_isp_cproc_config - Configuration used by Color Processing
  *
  * @c_out_range: Chrominance pixel clipping range at output.
  *		 (0 for limit, 1 for full)
  * @y_in_range: Luminance pixel clipping range at output.
  * @y_out_range: Luminance pixel clipping range at output.
  * @contrast: 00~ff, 0.0~1.992
  * @brightness: 80~7F, -128~+127
  * @sat: saturation, 00~FF, 0.0~1.992
  * @hue: 80~7F, -90~+87.188
  */
 struct rkisp1_cif_isp_cproc_config {
 	__u8 c_out_range;
 	__u8 y_in_range;
 	__u8 y_out_range;
 	__u8 contrast;
 	__u8 brightness;
 	__u8 sat;
 	__u8 hue;
 };
 
 /**
  * struct rkisp1_cif_isp_awb_meas_config - Configuration for the AWB statistics
  *
  * @awb_mode: the awb meas mode. From enum rkisp1_cif_isp_awb_mode_type.
  * @awb_wnd: white balance measurement window (in pixels)
  * @max_y: only pixels values < max_y contribute to awb measurement, set to 0
  *	   to disable this feature
  * @min_y: only pixels values > min_y contribute to awb measurement
  * @max_csum: Chrominance sum maximum value, only consider pixels with Cb+Cr,
  *	      smaller than threshold for awb measurements
  * @min_c: Chrominance minimum value, only consider pixels with Cb/Cr
  *	   each greater than threshold value for awb measurements
  * @frames: number of frames - 1 used for mean value calculation
  *	    (ucFrames=0 means 1 Frame)
  * @awb_ref_cr: reference Cr value for AWB regulation, target for AWB
  * @awb_ref_cb: reference Cb value for AWB regulation, target for AWB
  * @enable_ymax_cmp: enable Y_MAX compare (Not valid in RGB measurement mode.)
  */
 struct rkisp1_cif_isp_awb_meas_config {
 	/*
 	 * Note: currently the h and v offsets are mapped to grid offsets
 	 */
 	struct rkisp1_cif_isp_window awb_wnd;
 	__u32 awb_mode;
 	__u8 max_y;
 	__u8 min_y;
 	__u8 max_csum;
 	__u8 min_c;
 	__u8 frames;
 	__u8 awb_ref_cr;
 	__u8 awb_ref_cb;
 	__u8 enable_ymax_cmp;
 };
 
 /**
  * struct rkisp1_cif_isp_awb_gain_config - Configuration used by auto white balance gain
  *
  * All fields in this struct are 10 bit, where:
  * 0x100h = 1, unsigned integer value, range 0 to 4 with 8 bit fractional part.
  *
  * out_data_x = ( AWB_GAIN_X * in_data + 128) >> 8
  *
  * @gain_red: gain value for red component.
  * @gain_green_r: gain value for green component in red line.
  * @gain_blue: gain value for blue component.
  * @gain_green_b: gain value for green component in blue line.
  */
 struct rkisp1_cif_isp_awb_gain_config {
 	__u16 gain_red;
 	__u16 gain_green_r;
 	__u16 gain_blue;
 	__u16 gain_green_b;
 };
 
 /**
  * struct rkisp1_cif_isp_flt_config - Configuration used by ISP filtering
  *
  * All 4 threshold fields (thresh_*) are 10 bits.
  * All 6 factor fields (fac_*) are 6 bits.
  *
  * @mode: ISP_FILT_MODE register fields (from enum rkisp1_cif_isp_flt_mode)
  * @grn_stage1: Green filter stage 1 select (range 0x0...0x8)
  * @chr_h_mode: Chroma filter horizontal mode
  * @chr_v_mode: Chroma filter vertical mode
  * @thresh_bl0: If thresh_bl1 < sum_grad < thresh_bl0 then fac_bl0 is selected (blurring th)
  * @thresh_bl1: If sum_grad < thresh_bl1 then fac_bl1 is selected (blurring th)
  * @thresh_sh0: If thresh_sh0 < sum_grad < thresh_sh1 then thresh_sh0 is selected (sharpening th)
  * @thresh_sh1: If thresh_sh1 < sum_grad then thresh_sh1 is selected (sharpening th)
  * @lum_weight: Parameters for luminance weight function.
  * @fac_sh1: filter factor for sharp1 level
  * @fac_sh0: filter factor for sharp0 level
  * @fac_mid: filter factor for mid level and for static filter mode
  * @fac_bl0: filter factor for blur 0 level
  * @fac_bl1: filter factor for blur 1 level (max blur)
  */
 struct rkisp1_cif_isp_flt_config {
 	__u32 mode;
 	__u8 grn_stage1;
 	__u8 chr_h_mode;
 	__u8 chr_v_mode;
 	__u32 thresh_bl0;
 	__u32 thresh_bl1;
 	__u32 thresh_sh0;
 	__u32 thresh_sh1;
 	__u32 lum_weight;
 	__u32 fac_sh1;
 	__u32 fac_sh0;
 	__u32 fac_mid;
 	__u32 fac_bl0;
 	__u32 fac_bl1;
 };
 
 /**
  * struct rkisp1_cif_isp_bdm_config - Configuration used by Bayer DeMosaic
  *
  * @demosaic_th: threshold for bayer demosaicing texture detection
  */
 struct rkisp1_cif_isp_bdm_config {
 	__u8 demosaic_th;
 };
 
 /**
  * struct rkisp1_cif_isp_ctk_config - Configuration used by Cross Talk correction
  *
  * @coeff: color correction matrix. Values are 11-bit signed fixed-point numbers with 4 bit integer
  *		and 7 bit fractional part, ranging from -8 (0x400) to +7.992 (0x3FF). 0 is
  *		represented by 0x000 and a coefficient value of 1 as 0x080.
  * @ct_offset: Red, Green, Blue offsets for the crosstalk correction matrix
  */
 struct rkisp1_cif_isp_ctk_config {
 	__u16 coeff[3][3];
 	__u16 ct_offset[3];
 };
 
 enum rkisp1_cif_isp_goc_mode {
 	RKISP1_CIF_ISP_GOC_MODE_LOGARITHMIC,
 	RKISP1_CIF_ISP_GOC_MODE_EQUIDISTANT
 };
 
 /**
  * struct rkisp1_cif_isp_goc_config - Configuration used by Gamma Out correction
  *
  * @mode: goc mode (from enum rkisp1_cif_isp_goc_mode)
  * @gamma_y: gamma out curve y-axis for all color components
  *
  * The number of entries of @gamma_y depends on the hardware revision
  * as is reported by the hw_revision field of the struct media_device_info
  * that is returned by ioctl MEDIA_IOC_DEVICE_INFO.
  *
  * V10 has RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES_V10 entries, V12 has
  * RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES_V12 entries.
  * RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES is equal to the maximum of the two.
  */
 struct rkisp1_cif_isp_goc_config {
 	__u32 mode;
 	__u16 gamma_y[RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES];
 };
 
 /**
  * struct rkisp1_cif_isp_hst_config - Configuration for Histogram statistics
  *
  * @mode: histogram mode (from enum rkisp1_cif_isp_histogram_mode)
  * @histogram_predivider: process every stepsize pixel, all other pixels are
  *			  skipped
  * @meas_window: coordinates of the measure window
  * @hist_weight: weighting factor for sub-windows
  *
  * The number of entries of @hist_weight depends on the hardware revision
  * as is reported by the hw_revision field of the struct media_device_info
  * that is returned by ioctl MEDIA_IOC_DEVICE_INFO.
  *
  * V10 has RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE_V10 entries, V12 has
  * RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE_V12 entries.
  * RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE is equal to the maximum of the
  * two.
  */
 struct rkisp1_cif_isp_hst_config {
 	__u32 mode;
 	__u8 histogram_predivider;
 	struct rkisp1_cif_isp_window meas_window;
 	__u8 hist_weight[RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE];
 };
 
 /**
  * struct rkisp1_cif_isp_aec_config - Configuration for Auto Exposure statistics
  *
  * @mode: Exposure measure mode (from enum rkisp1_cif_isp_exp_meas_mode)
  * @autostop: stop mode (from enum rkisp1_cif_isp_exp_ctrl_autostop)
  * @meas_window: coordinates of the measure window
  */
 struct rkisp1_cif_isp_aec_config {
 	__u32 mode;
 	__u32 autostop;
 	struct rkisp1_cif_isp_window meas_window;
 };
 
 /**
  * struct rkisp1_cif_isp_afc_config - Configuration for the Auto Focus statistics
  *
  * @num_afm_win: max RKISP1_CIF_ISP_AFM_MAX_WINDOWS
  * @afm_win: coordinates of the meas window
  * @thres: threshold used for minimizing the influence of noise
  * @var_shift: the number of bits for the shift operation at the end of the
  *	       calculation chain.
  */
 struct rkisp1_cif_isp_afc_config {
 	__u8 num_afm_win;
 	struct rkisp1_cif_isp_window afm_win[RKISP1_CIF_ISP_AFM_MAX_WINDOWS];
 	__u32 thres;
 	__u32 var_shift;
 };
 
 /**
  * enum rkisp1_cif_isp_dpf_gain_usage - dpf gain usage
  * @RKISP1_CIF_ISP_DPF_GAIN_USAGE_DISABLED: don't use any gains in preprocessing stage
  * @RKISP1_CIF_ISP_DPF_GAIN_USAGE_NF_GAINS: use only the noise function gains from
  *				    registers DPF_NF_GAIN_R, ...
  * @RKISP1_CIF_ISP_DPF_GAIN_USAGE_LSC_GAINS:  use only the gains from LSC module
  * @RKISP1_CIF_ISP_DPF_GAIN_USAGE_NF_LSC_GAINS: use the noise function gains and the
  *					gains from LSC module
  * @RKISP1_CIF_ISP_DPF_GAIN_USAGE_AWB_GAINS: use only the gains from AWB module
  * @RKISP1_CIF_ISP_DPF_GAIN_USAGE_AWB_LSC_GAINS: use the gains from AWB and LSC module
  * @RKISP1_CIF_ISP_DPF_GAIN_USAGE_MAX: upper border (only for an internal evaluation)
  */
 enum rkisp1_cif_isp_dpf_gain_usage {
 	RKISP1_CIF_ISP_DPF_GAIN_USAGE_DISABLED,
 	RKISP1_CIF_ISP_DPF_GAIN_USAGE_NF_GAINS,
 	RKISP1_CIF_ISP_DPF_GAIN_USAGE_LSC_GAINS,
 	RKISP1_CIF_ISP_DPF_GAIN_USAGE_NF_LSC_GAINS,
 	RKISP1_CIF_ISP_DPF_GAIN_USAGE_AWB_GAINS,
 	RKISP1_CIF_ISP_DPF_GAIN_USAGE_AWB_LSC_GAINS,
 	RKISP1_CIF_ISP_DPF_GAIN_USAGE_MAX
 };
 
 /**
  * enum rkisp1_cif_isp_dpf_rb_filtersize - Red and blue filter sizes
  * @RKISP1_CIF_ISP_DPF_RB_FILTERSIZE_13x9: red and blue filter kernel size 13x9
  *				   (means 7x5 active pixel)
  * @RKISP1_CIF_ISP_DPF_RB_FILTERSIZE_9x9: red and blue filter kernel size 9x9
  *				   (means 5x5 active pixel)
  */
 enum rkisp1_cif_isp_dpf_rb_filtersize {
 	RKISP1_CIF_ISP_DPF_RB_FILTERSIZE_13x9,
 	RKISP1_CIF_ISP_DPF_RB_FILTERSIZE_9x9,
 };
 
 /**
  * enum rkisp1_cif_isp_dpf_nll_scale_mode - dpf noise level scale mode
  * @RKISP1_CIF_ISP_NLL_SCALE_LINEAR: use a linear scaling
  * @RKISP1_CIF_ISP_NLL_SCALE_LOGARITHMIC: use a logarithmic scaling
  */
 enum rkisp1_cif_isp_dpf_nll_scale_mode {
 	RKISP1_CIF_ISP_NLL_SCALE_LINEAR,
 	RKISP1_CIF_ISP_NLL_SCALE_LOGARITHMIC,
 };
 
 /**
  * struct rkisp1_cif_isp_dpf_nll - Noise level lookup
  *
  * @coeff: Noise level Lookup coefficient
  * @scale_mode: dpf noise level scale mode (from enum rkisp1_cif_isp_dpf_nll_scale_mode)
  */
 struct rkisp1_cif_isp_dpf_nll {
 	__u16 coeff[RKISP1_CIF_ISP_DPF_MAX_NLF_COEFFS];
 	__u32 scale_mode;
 };
 
 /**
  * struct rkisp1_cif_isp_dpf_rb_flt - Red blue filter config
  *
  * @fltsize: The filter size for the red and blue pixels
  *	     (from enum rkisp1_cif_isp_dpf_rb_filtersize)
  * @spatial_coeff: Spatial weights
  * @r_enable: enable filter processing for red pixels
  * @b_enable: enable filter processing for blue pixels
  */
 struct rkisp1_cif_isp_dpf_rb_flt {
 	__u32 fltsize;
 	__u8 spatial_coeff[RKISP1_CIF_ISP_DPF_MAX_SPATIAL_COEFFS];
 	__u8 r_enable;
 	__u8 b_enable;
 };
 
 /**
  * struct rkisp1_cif_isp_dpf_g_flt - Green filter Configuration
  *
  * @spatial_coeff: Spatial weights
  * @gr_enable: enable filter processing for green pixels in green/red lines
  * @gb_enable: enable filter processing for green pixels in green/blue lines
  */
 struct rkisp1_cif_isp_dpf_g_flt {
 	__u8 spatial_coeff[RKISP1_CIF_ISP_DPF_MAX_SPATIAL_COEFFS];
 	__u8 gr_enable;
 	__u8 gb_enable;
 };
 
 /**
  * struct rkisp1_cif_isp_dpf_gain - Noise function Configuration
  *
  * @mode: dpf gain usage  (from enum rkisp1_cif_isp_dpf_gain_usage)
  * @nf_r_gain: Noise function Gain that replaces the AWB gain for red pixels
  * @nf_b_gain: Noise function Gain that replaces the AWB gain for blue pixels
  * @nf_gr_gain: Noise function Gain that replaces the AWB gain
  *		for green pixels in a red line
  * @nf_gb_gain: Noise function Gain that replaces the AWB gain
  *		for green pixels in a blue line
  */
 struct rkisp1_cif_isp_dpf_gain {
 	__u32 mode;
 	__u16 nf_r_gain;
 	__u16 nf_b_gain;
 	__u16 nf_gr_gain;
 	__u16 nf_gb_gain;
 };
 
 /**
  * struct rkisp1_cif_isp_dpf_config - Configuration used by De-noising pre-filter
  *
  * @gain: noise function gain
  * @g_flt: green filter config
  * @rb_flt: red blue filter config
  * @nll: noise level lookup
  */
 struct rkisp1_cif_isp_dpf_config {
 	struct rkisp1_cif_isp_dpf_gain gain;
 	struct rkisp1_cif_isp_dpf_g_flt g_flt;
 	struct rkisp1_cif_isp_dpf_rb_flt rb_flt;
 	struct rkisp1_cif_isp_dpf_nll nll;
 };
 
 /**
  * struct rkisp1_cif_isp_dpf_strength_config - strength of the filter
  *
  * @r: filter strength of the RED filter
  * @g: filter strength of the GREEN filter
  * @b: filter strength of the BLUE filter
  */
 struct rkisp1_cif_isp_dpf_strength_config {
 	__u8 r;
 	__u8 g;
 	__u8 b;
 };
 
 /**
  * struct rkisp1_cif_isp_isp_other_cfg - Parameters for some blocks in rockchip isp1
  *
  * @dpcc_config: Defect Pixel Cluster Correction config
  * @bls_config: Black Level Subtraction config
  * @sdg_config: sensor degamma config
  * @lsc_config: Lens Shade config
  * @awb_gain_config: Auto White balance gain config
  * @flt_config: filter config
  * @bdm_config: demosaic config
  * @ctk_config: cross talk config
  * @goc_config: gamma out config
  * @bls_config: black level subtraction config
  * @dpf_config: De-noising pre-filter config
  * @dpf_strength_config: dpf strength config
  * @cproc_config: color process config
  * @ie_config: image effects config
  */
 struct rkisp1_cif_isp_isp_other_cfg {
 	struct rkisp1_cif_isp_dpcc_config dpcc_config;
 	struct rkisp1_cif_isp_bls_config bls_config;
 	struct rkisp1_cif_isp_sdg_config sdg_config;
 	struct rkisp1_cif_isp_lsc_config lsc_config;
 	struct rkisp1_cif_isp_awb_gain_config awb_gain_config;
 	struct rkisp1_cif_isp_flt_config flt_config;
 	struct rkisp1_cif_isp_bdm_config bdm_config;
 	struct rkisp1_cif_isp_ctk_config ctk_config;
 	struct rkisp1_cif_isp_goc_config goc_config;
 	struct rkisp1_cif_isp_dpf_config dpf_config;
 	struct rkisp1_cif_isp_dpf_strength_config dpf_strength_config;
 	struct rkisp1_cif_isp_cproc_config cproc_config;
 	struct rkisp1_cif_isp_ie_config ie_config;
 };
 
 /**
  * struct rkisp1_cif_isp_isp_meas_cfg - Rockchip ISP1 Measure Parameters
  *
  * @awb_meas_config: auto white balance config
  * @hst_config: histogram config
  * @aec_config: auto exposure config
  * @afc_config: auto focus config
  */
 struct rkisp1_cif_isp_isp_meas_cfg {
 	struct rkisp1_cif_isp_awb_meas_config awb_meas_config;
 	struct rkisp1_cif_isp_hst_config hst_config;
 	struct rkisp1_cif_isp_aec_config aec_config;
 	struct rkisp1_cif_isp_afc_config afc_config;
 };
 
 /**
  * struct rkisp1_params_cfg - Rockchip ISP1 Input Parameters Meta Data
  *
  * @module_en_update: mask the enable bits of which module should be updated
  * @module_ens: mask the enable value of each module, only update the module
  *		which correspond bit was set in module_en_update
  * @module_cfg_update: mask the config bits of which module should be updated
  * @meas: measurement config
  * @others: other config
  */
 struct rkisp1_params_cfg {
 	__u32 module_en_update;
 	__u32 module_ens;
 	__u32 module_cfg_update;
 
 	struct rkisp1_cif_isp_isp_meas_cfg meas;
 	struct rkisp1_cif_isp_isp_other_cfg others;
 };
 
 /**
  * struct rkisp1_cif_isp_compand_bls_config - Rockchip ISP1 Companding parameters (BLS)
  * @r: Fixed subtraction value for Bayer pattern R
  * @gr: Fixed subtraction value for Bayer pattern Gr
  * @gb: Fixed subtraction value for Bayer pattern Gb
  * @b: Fixed subtraction value for Bayer pattern B
  *
  * The values will be subtracted from the sensor values. Note that unlike the
  * dedicated BLS block, the BLS values in the compander are 20-bit unsigned.
  */
 struct rkisp1_cif_isp_compand_bls_config {
 	__u32 r;
 	__u32 gr;
 	__u32 gb;
 	__u32 b;
 };
 
 /**
  * struct rkisp1_cif_isp_compand_curve_config - Rockchip ISP1 Companding
  * parameters (expand and compression curves)
  * @px: Compand curve x-values. Each value stores the distance from the
  *      previous x-value, expressed as log2 of the distance on 5 bits.
  * @x: Compand curve x-values. The functionality of these parameters are
  *     unknown due to do a lack of hardware documentation, but these are left
  *     here for future compatibility purposes.
  * @y: Compand curve y-values
  */
 struct rkisp1_cif_isp_compand_curve_config {
 	__u8 px[RKISP1_CIF_ISP_COMPAND_NUM_POINTS];
 	__u32 x[RKISP1_CIF_ISP_COMPAND_NUM_POINTS];
 	__u32 y[RKISP1_CIF_ISP_COMPAND_NUM_POINTS];
 };
 
 /*---------- PART2: Measurement Statistics ------------*/
 
 /**
  * struct rkisp1_cif_isp_awb_meas - AWB measured values
  *
  * @cnt: White pixel count, number of "white pixels" found during last
  *	 measurement
  * @mean_y_or_g: Mean value of Y within window and frames,
  *		 Green if RGB is selected.
  * @mean_cb_or_b: Mean value of Cb within window and frames,
  *		  Blue if RGB is selected.
  * @mean_cr_or_r: Mean value of Cr within window and frames,
  *		  Red if RGB is selected.
  */
 struct rkisp1_cif_isp_awb_meas {
 	__u32 cnt;
 	__u8 mean_y_or_g;
 	__u8 mean_cb_or_b;
 	__u8 mean_cr_or_r;
 };
 
 /**
  * struct rkisp1_cif_isp_awb_stat - statistics automatic white balance data
  *
  * @awb_mean: Mean measured data
  */
 struct rkisp1_cif_isp_awb_stat {
 	struct rkisp1_cif_isp_awb_meas awb_mean[RKISP1_CIF_ISP_AWB_MAX_GRID];
 };
 
 /**
  * struct rkisp1_cif_isp_bls_meas_val - BLS measured values
  *
  * @meas_r: Mean measured value for Bayer pattern R
  * @meas_gr: Mean measured value for Bayer pattern Gr
  * @meas_gb: Mean measured value for Bayer pattern Gb
  * @meas_b: Mean measured value for Bayer pattern B
  */
 struct rkisp1_cif_isp_bls_meas_val {
 	__u16 meas_r;
 	__u16 meas_gr;
 	__u16 meas_gb;
 	__u16 meas_b;
 };
 
 /**
  * struct rkisp1_cif_isp_ae_stat - statistics auto exposure data
  *
  * @exp_mean: Mean luminance value of block xx
  * @bls_val:  BLS measured values
  *
  * The number of entries of @exp_mean depends on the hardware revision
  * as is reported by the hw_revision field of the struct media_device_info
  * that is returned by ioctl MEDIA_IOC_DEVICE_INFO.
  *
  * V10 has RKISP1_CIF_ISP_AE_MEAN_MAX_V10 entries, V12 has
  * RKISP1_CIF_ISP_AE_MEAN_MAX_V12 entries. RKISP1_CIF_ISP_AE_MEAN_MAX is equal
  * to the maximum of the two.
  *
  * Image is divided into 5x5 blocks on V10 and 9x9 blocks on V12.
  */
 struct rkisp1_cif_isp_ae_stat {
 	__u8 exp_mean[RKISP1_CIF_ISP_AE_MEAN_MAX];
 	struct rkisp1_cif_isp_bls_meas_val bls_val;
 };
 
 /**
  * struct rkisp1_cif_isp_af_meas_val - AF measured values
  *
  * @sum: sharpness value
  * @lum: luminance value
  */
 struct rkisp1_cif_isp_af_meas_val {
 	__u32 sum;
 	__u32 lum;
 };
 
 /**
  * struct rkisp1_cif_isp_af_stat - statistics auto focus data
  *
  * @window: AF measured value of window x
  *
  * The module measures the sharpness in 3 windows of selectable size via
  * register settings(ISP_AFM_*_A/B/C)
  */
 struct rkisp1_cif_isp_af_stat {
 	struct rkisp1_cif_isp_af_meas_val window[RKISP1_CIF_ISP_AFM_MAX_WINDOWS];
 };
 
 /**
  * struct rkisp1_cif_isp_hist_stat - statistics histogram data
  *
  * @hist_bins: measured bin counters. Each bin is a 20 bits unsigned fixed point
  *	       type. Bits 0-4 are the fractional part and bits 5-19 are the
  *	       integer part.
  *
  * The window of the measurements area is divided to 5x5 sub-windows for
  * V10 and to 9x9 sub-windows for V12. The histogram is then computed for each
  * sub-window independently and the final result is a weighted average of the
  * histogram measurements on all sub-windows. The window of the measurements
  * area and the weight of each sub-window are configurable using
  * struct @rkisp1_cif_isp_hst_config.
  *
  * The histogram contains 16 bins in V10 and 32 bins in V12.
  *
  * The number of entries of @hist_bins depends on the hardware revision
  * as is reported by the hw_revision field of the struct media_device_info
  * that is returned by ioctl MEDIA_IOC_DEVICE_INFO.
  *
  * V10 has RKISP1_CIF_ISP_HIST_BIN_N_MAX_V10 entries, V12 has
  * RKISP1_CIF_ISP_HIST_BIN_N_MAX_V12 entries. RKISP1_CIF_ISP_HIST_BIN_N_MAX is
  * equal to the maximum of the two.
  */
 struct rkisp1_cif_isp_hist_stat {
 	__u32 hist_bins[RKISP1_CIF_ISP_HIST_BIN_N_MAX];
 };
 
 /**
  * struct rkisp1_cif_isp_stat - Rockchip ISP1 Statistics Data
  *
  * @awb: statistics data for automatic white balance
  * @ae: statistics data for auto exposure
  * @af: statistics data for auto focus
  * @hist: statistics histogram data
  */
 struct rkisp1_cif_isp_stat {
 	struct rkisp1_cif_isp_awb_stat awb;
 	struct rkisp1_cif_isp_ae_stat ae;
 	struct rkisp1_cif_isp_af_stat af;
 	struct rkisp1_cif_isp_hist_stat hist;
 };
 
 /**
  * struct rkisp1_stat_buffer - Rockchip ISP1 Statistics Meta Data
  *
  * @meas_type: measurement types (RKISP1_CIF_ISP_STAT_* definitions)
  * @frame_id: frame ID for sync
  * @params: statistics data
  */
 struct rkisp1_stat_buffer {
 	__u32 meas_type;
 	__u32 frame_id;
 	struct rkisp1_cif_isp_stat params;
 };
 
 /*---------- PART3: Extensible Configuration Parameters  ------------*/
 
 /**
  * enum rkisp1_ext_params_block_type - RkISP1 extensible params block type
  *
  * @RKISP1_EXT_PARAMS_BLOCK_TYPE_BLS: Black level subtraction
  * @RKISP1_EXT_PARAMS_BLOCK_TYPE_DPCC: Defect pixel cluster correction
  * @RKISP1_EXT_PARAMS_BLOCK_TYPE_SDG: Sensor de-gamma
  * @RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_GAIN: Auto white balance gains
  * @RKISP1_EXT_PARAMS_BLOCK_TYPE_FLT: ISP filtering
  * @RKISP1_EXT_PARAMS_BLOCK_TYPE_BDM: Bayer de-mosaic
  * @RKISP1_EXT_PARAMS_BLOCK_TYPE_CTK: Cross-talk correction
  * @RKISP1_EXT_PARAMS_BLOCK_TYPE_GOC: Gamma out correction
  * @RKISP1_EXT_PARAMS_BLOCK_TYPE_DPF: De-noise pre-filter
  * @RKISP1_EXT_PARAMS_BLOCK_TYPE_DPF_STRENGTH: De-noise pre-filter strength
  * @RKISP1_EXT_PARAMS_BLOCK_TYPE_CPROC: Color processing
  * @RKISP1_EXT_PARAMS_BLOCK_TYPE_IE: Image effects
  * @RKISP1_EXT_PARAMS_BLOCK_TYPE_LSC: Lens shading correction
  * @RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_MEAS: Auto white balance statistics
  * @RKISP1_EXT_PARAMS_BLOCK_TYPE_HST_MEAS: Histogram statistics
  * @RKISP1_EXT_PARAMS_BLOCK_TYPE_AEC_MEAS: Auto exposure statistics
  * @RKISP1_EXT_PARAMS_BLOCK_TYPE_AFC_MEAS: Auto-focus statistics
  * @RKISP1_EXT_PARAMS_BLOCK_TYPE_COMPAND_BLS: BLS in the compand block
  * @RKISP1_EXT_PARAMS_BLOCK_TYPE_COMPAND_EXPAND: Companding expand curve
  * @RKISP1_EXT_PARAMS_BLOCK_TYPE_COMPAND_COMPRESS: Companding compress curve
  */
 enum rkisp1_ext_params_block_type {
 	RKISP1_EXT_PARAMS_BLOCK_TYPE_BLS,
 	RKISP1_EXT_PARAMS_BLOCK_TYPE_DPCC,
 	RKISP1_EXT_PARAMS_BLOCK_TYPE_SDG,
 	RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_GAIN,
 	RKISP1_EXT_PARAMS_BLOCK_TYPE_FLT,
 	RKISP1_EXT_PARAMS_BLOCK_TYPE_BDM,
 	RKISP1_EXT_PARAMS_BLOCK_TYPE_CTK,
 	RKISP1_EXT_PARAMS_BLOCK_TYPE_GOC,
 	RKISP1_EXT_PARAMS_BLOCK_TYPE_DPF,
 	RKISP1_EXT_PARAMS_BLOCK_TYPE_DPF_STRENGTH,
 	RKISP1_EXT_PARAMS_BLOCK_TYPE_CPROC,
 	RKISP1_EXT_PARAMS_BLOCK_TYPE_IE,
 	RKISP1_EXT_PARAMS_BLOCK_TYPE_LSC,
 	RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_MEAS,
 	RKISP1_EXT_PARAMS_BLOCK_TYPE_HST_MEAS,
 	RKISP1_EXT_PARAMS_BLOCK_TYPE_AEC_MEAS,
 	RKISP1_EXT_PARAMS_BLOCK_TYPE_AFC_MEAS,
 	RKISP1_EXT_PARAMS_BLOCK_TYPE_COMPAND_BLS,
 	RKISP1_EXT_PARAMS_BLOCK_TYPE_COMPAND_EXPAND,
 	RKISP1_EXT_PARAMS_BLOCK_TYPE_COMPAND_COMPRESS,
 };
 
 #define RKISP1_EXT_PARAMS_FL_BLOCK_DISABLE	(1U << 0)
 #define RKISP1_EXT_PARAMS_FL_BLOCK_ENABLE	(1U << 1)
 
 /**
  * struct rkisp1_ext_params_block_header - RkISP1 extensible parameters block
  *					   header
  *
  * This structure represents the common part of all the ISP configuration
  * blocks. Each parameters block shall embed an instance of this structure type
  * as its first member, followed by the block-specific configuration data. The
  * driver inspects this common header to discern the block type and its size and
  * properly handle the block content by casting it to the correct block-specific
  * type.
  *
  * The @type field is one of the values enumerated by
  * :c:type:`rkisp1_ext_params_block_type` and specifies how the data should be
  * interpreted by the driver. The @size field specifies the size of the
  * parameters block and is used by the driver for validation purposes.
  *
  * The @flags field is a bitmask of per-block flags RKISP1_EXT_PARAMS_FL_*.
  *
  * When userspace wants to configure and enable an ISP block it shall fully
  * populate the block configuration and set the
  * RKISP1_EXT_PARAMS_FL_BLOCK_ENABLE bit in the @flags field.
  *
  * When userspace simply wants to disable an ISP block the
  * RKISP1_EXT_PARAMS_FL_BLOCK_DISABLE bit should be set in @flags field. The
  * driver ignores the rest of the block configuration structure in this case.
  *
  * If a new configuration of an ISP block has to be applied userspace shall
  * fully populate the ISP block configuration and omit setting the
  * RKISP1_EXT_PARAMS_FL_BLOCK_ENABLE and RKISP1_EXT_PARAMS_FL_BLOCK_DISABLE bits
  * in the @flags field.
  *
  * Setting both the RKISP1_EXT_PARAMS_FL_BLOCK_ENABLE and
  * RKISP1_EXT_PARAMS_FL_BLOCK_DISABLE bits in the @flags field is not allowed
  * and not accepted by the driver.
  *
  * Userspace is responsible for correctly populating the parameters block header
  * fields (@type, @flags and @size) and the block-specific parameters.
  *
  * For example:
  *
  * .. code-block:: c
  *
  *	void populate_bls(struct rkisp1_ext_params_block_header *block) {
  *		struct rkisp1_ext_params_bls_config *bls =
  *			(struct rkisp1_ext_params_bls_config *)block;
  *
  *		bls->header.type = RKISP1_EXT_PARAMS_BLOCK_ID_BLS;
  *		bls->header.flags = RKISP1_EXT_PARAMS_FL_BLOCK_ENABLE;
  *		bls->header.size = sizeof(*bls);
  *
  *		bls->config.enable_auto = 0;
  *		bls->config.fixed_val.r = blackLevelRed_;
  *		bls->config.fixed_val.gr = blackLevelGreenR_;
  *		bls->config.fixed_val.gb = blackLevelGreenB_;
  *		bls->config.fixed_val.b = blackLevelBlue_;
  *	}
  *
  * @type: The parameters block type, see
  *	  :c:type:`rkisp1_ext_params_block_type`
  * @flags: A bitmask of block flags
  * @size: Size (in bytes) of the parameters block, including this header
  */
 struct rkisp1_ext_params_block_header {
 	__u16 type;
 	__u16 flags;
 	__u32 size;
 };
 
 /**
  * struct rkisp1_ext_params_bls_config - RkISP1 extensible params BLS config
  *
  * RkISP1 extensible parameters Black Level Subtraction configuration block.
  * Identified by :c:type:`RKISP1_EXT_PARAMS_BLOCK_TYPE_BLS`.
  *
  * @header: The RkISP1 extensible parameters header, see
  *	    :c:type:`rkisp1_ext_params_block_header`
  * @config: Black Level Subtraction configuration, see
  *	    :c:type:`rkisp1_cif_isp_bls_config`
  */
 struct rkisp1_ext_params_bls_config {
 	struct rkisp1_ext_params_block_header header;
 	struct rkisp1_cif_isp_bls_config config;
 } __attribute__((aligned(8)));
 
 /**
  * struct rkisp1_ext_params_dpcc_config - RkISP1 extensible params DPCC config
  *
  * RkISP1 extensible parameters Defective Pixel Cluster Correction configuration
  * block. Identified by :c:type:`RKISP1_EXT_PARAMS_BLOCK_TYPE_DPCC`.
  *
  * @header: The RkISP1 extensible parameters header, see
  *	    :c:type:`rkisp1_ext_params_block_header`
  * @config: Defective Pixel Cluster Correction configuration, see
  *	    :c:type:`rkisp1_cif_isp_dpcc_config`
  */
 struct rkisp1_ext_params_dpcc_config {
 	struct rkisp1_ext_params_block_header header;
 	struct rkisp1_cif_isp_dpcc_config config;
 } __attribute__((aligned(8)));
 
 /**
  * struct rkisp1_ext_params_sdg_config - RkISP1 extensible params SDG config
  *
  * RkISP1 extensible parameters Sensor Degamma configuration block. Identified
  * by :c:type:`RKISP1_EXT_PARAMS_BLOCK_TYPE_SDG`.
  *
  * @header: The RkISP1 extensible parameters header, see
  *	    :c:type:`rkisp1_ext_params_block_header`
  * @config: Sensor Degamma configuration, see
  *	    :c:type:`rkisp1_cif_isp_sdg_config`
  */
 struct rkisp1_ext_params_sdg_config {
 	struct rkisp1_ext_params_block_header header;
 	struct rkisp1_cif_isp_sdg_config config;
 } __attribute__((aligned(8)));
 
 /**
  * struct rkisp1_ext_params_lsc_config - RkISP1 extensible params LSC config
  *
  * RkISP1 extensible parameters Lens Shading Correction configuration block.
  * Identified by :c:type:`RKISP1_EXT_PARAMS_BLOCK_TYPE_LSC`.
  *
  * @header: The RkISP1 extensible parameters header, see
  *	    :c:type:`rkisp1_ext_params_block_header`
  * @config: Lens Shading Correction configuration, see
  *	    :c:type:`rkisp1_cif_isp_lsc_config`
  */
 struct rkisp1_ext_params_lsc_config {
 	struct rkisp1_ext_params_block_header header;
 	struct rkisp1_cif_isp_lsc_config config;
 } __attribute__((aligned(8)));
 
 /**
  * struct rkisp1_ext_params_awb_gain_config - RkISP1 extensible params AWB
  *					      gain config
  *
  * RkISP1 extensible parameters Auto-White Balance Gains configuration block.
  * Identified by :c:type:`RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_GAIN`.
  *
  * @header: The RkISP1 extensible parameters header, see
  *	    :c:type:`rkisp1_ext_params_block_header`
  * @config: Auto-White Balance Gains configuration, see
  *	    :c:type:`rkisp1_cif_isp_awb_gain_config`
  */
 struct rkisp1_ext_params_awb_gain_config {
 	struct rkisp1_ext_params_block_header header;
 	struct rkisp1_cif_isp_awb_gain_config config;
 } __attribute__((aligned(8)));
 
 /**
  * struct rkisp1_ext_params_flt_config - RkISP1 extensible params FLT config
  *
  * RkISP1 extensible parameters Filter configuration block. Identified by
  * :c:type:`RKISP1_EXT_PARAMS_BLOCK_TYPE_FLT`.
  *
  * @header: The RkISP1 extensible parameters header, see
  *	    :c:type:`rkisp1_ext_params_block_header`
  * @config: Filter configuration, see :c:type:`rkisp1_cif_isp_flt_config`
  */
 struct rkisp1_ext_params_flt_config {
 	struct rkisp1_ext_params_block_header header;
 	struct rkisp1_cif_isp_flt_config config;
 } __attribute__((aligned(8)));
 
 /**
  * struct rkisp1_ext_params_bdm_config - RkISP1 extensible params BDM config
  *
  * RkISP1 extensible parameters Demosaicing configuration block. Identified by
  * :c:type:`RKISP1_EXT_PARAMS_BLOCK_TYPE_BDM`.
  *
  * @header: The RkISP1 extensible parameters header, see
  *	    :c:type:`rkisp1_ext_params_block_header`
  * @config: Demosaicing configuration, see :c:type:`rkisp1_cif_isp_bdm_config`
  */
 struct rkisp1_ext_params_bdm_config {
 	struct rkisp1_ext_params_block_header header;
 	struct rkisp1_cif_isp_bdm_config config;
 } __attribute__((aligned(8)));
 
 /**
  * struct rkisp1_ext_params_ctk_config - RkISP1 extensible params CTK config
  *
  * RkISP1 extensible parameters Cross-Talk configuration block. Identified by
  * :c:type:`RKISP1_EXT_PARAMS_BLOCK_TYPE_CTK`.
  *
  * @header: The RkISP1 extensible parameters header, see
  *	    :c:type:`rkisp1_ext_params_block_header`
  * @config: Cross-Talk configuration, see :c:type:`rkisp1_cif_isp_ctk_config`
  */
 struct rkisp1_ext_params_ctk_config {
 	struct rkisp1_ext_params_block_header header;
 	struct rkisp1_cif_isp_ctk_config config;
 } __attribute__((aligned(8)));
 
 /**
  * struct rkisp1_ext_params_goc_config - RkISP1 extensible params GOC config
  *
  * RkISP1 extensible parameters Gamma-Out configuration block. Identified by
  * :c:type:`RKISP1_EXT_PARAMS_BLOCK_TYPE_GOC`.
  *
  * @header: The RkISP1 extensible parameters header, see
  *	    :c:type:`rkisp1_ext_params_block_header`
  * @config: Gamma-Out configuration, see :c:type:`rkisp1_cif_isp_goc_config`
  */
 struct rkisp1_ext_params_goc_config {
 	struct rkisp1_ext_params_block_header header;
 	struct rkisp1_cif_isp_goc_config config;
 } __attribute__((aligned(8)));
 
 /**
  * struct rkisp1_ext_params_dpf_config - RkISP1 extensible params DPF config
  *
  * RkISP1 extensible parameters De-noise Pre-Filter configuration block.
  * Identified by :c:type:`RKISP1_EXT_PARAMS_BLOCK_TYPE_DPF`.
  *
  * @header: The RkISP1 extensible parameters header, see
  *	    :c:type:`rkisp1_ext_params_block_header`
  * @config: De-noise Pre-Filter configuration, see
  *	    :c:type:`rkisp1_cif_isp_dpf_config`
  */
 struct rkisp1_ext_params_dpf_config {
 	struct rkisp1_ext_params_block_header header;
 	struct rkisp1_cif_isp_dpf_config config;
 } __attribute__((aligned(8)));
 
 /**
  * struct rkisp1_ext_params_dpf_strength_config - RkISP1 extensible params DPF
  *						  strength config
  *
  * RkISP1 extensible parameters De-noise Pre-Filter strength configuration
  * block. Identified by :c:type:`RKISP1_EXT_PARAMS_BLOCK_TYPE_DPF_STRENGTH`.
  *
  * @header: The RkISP1 extensible parameters header, see
  *	    :c:type:`rkisp1_ext_params_block_header`
  * @config: De-noise Pre-Filter strength configuration, see
  *	    :c:type:`rkisp1_cif_isp_dpf_strength_config`
  */
 struct rkisp1_ext_params_dpf_strength_config {
 	struct rkisp1_ext_params_block_header header;
 	struct rkisp1_cif_isp_dpf_strength_config config;
 } __attribute__((aligned(8)));
 
 /**
  * struct rkisp1_ext_params_cproc_config - RkISP1 extensible params CPROC config
  *
  * RkISP1 extensible parameters Color Processing configuration block.
  * Identified by :c:type:`RKISP1_EXT_PARAMS_BLOCK_TYPE_CPROC`.
  *
  * @header: The RkISP1 extensible parameters header, see
  *	    :c:type:`rkisp1_ext_params_block_header`
  * @config: Color processing configuration, see
  *	    :c:type:`rkisp1_cif_isp_cproc_config`
  */
 struct rkisp1_ext_params_cproc_config {
 	struct rkisp1_ext_params_block_header header;
 	struct rkisp1_cif_isp_cproc_config config;
 } __attribute__((aligned(8)));
 
 /**
  * struct rkisp1_ext_params_ie_config - RkISP1 extensible params IE config
  *
  * RkISP1 extensible parameters Image Effect configuration block. Identified by
  * :c:type:`RKISP1_EXT_PARAMS_BLOCK_TYPE_IE`.
  *
  * @header: The RkISP1 extensible parameters header, see
  *	    :c:type:`rkisp1_ext_params_block_header`
  * @config: Image Effect configuration, see :c:type:`rkisp1_cif_isp_ie_config`
  */
 struct rkisp1_ext_params_ie_config {
 	struct rkisp1_ext_params_block_header header;
 	struct rkisp1_cif_isp_ie_config config;
 } __attribute__((aligned(8)));
 
 /**
  * struct rkisp1_ext_params_awb_meas_config - RkISP1 extensible params AWB
  *					      Meas config
  *
  * RkISP1 extensible parameters Auto-White Balance Measurement configuration
  * block. Identified by :c:type:`RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_MEAS`.
  *
  * @header: The RkISP1 extensible parameters header, see
  *	    :c:type:`rkisp1_ext_params_block_header`
  * @config: Auto-White Balance measure configuration, see
  *	    :c:type:`rkisp1_cif_isp_awb_meas_config`
  */
 struct rkisp1_ext_params_awb_meas_config {
 	struct rkisp1_ext_params_block_header header;
 	struct rkisp1_cif_isp_awb_meas_config config;
 } __attribute__((aligned(8)));
 
 /**
  * struct rkisp1_ext_params_hst_config - RkISP1 extensible params Histogram config
  *
  * RkISP1 extensible parameters Histogram statistics configuration block.
  * Identified by :c:type:`RKISP1_EXT_PARAMS_BLOCK_TYPE_HST_MEAS`.
  *
  * @header: The RkISP1 extensible parameters header, see
  *	    :c:type:`rkisp1_ext_params_block_header`
  * @config: Histogram statistics configuration, see
  *	    :c:type:`rkisp1_cif_isp_hst_config`
  */
 struct rkisp1_ext_params_hst_config {
 	struct rkisp1_ext_params_block_header header;
 	struct rkisp1_cif_isp_hst_config config;
 } __attribute__((aligned(8)));
 
 /**
  * struct rkisp1_ext_params_aec_config - RkISP1 extensible params AEC config
  *
  * RkISP1 extensible parameters Auto-Exposure statistics configuration block.
  * Identified by :c:type:`RKISP1_EXT_PARAMS_BLOCK_TYPE_AEC_MEAS`.
  *
  * @header: The RkISP1 extensible parameters header, see
  *	    :c:type:`rkisp1_ext_params_block_header`
  * @config: Auto-Exposure statistics configuration, see
  *	    :c:type:`rkisp1_cif_isp_aec_config`
  */
 struct rkisp1_ext_params_aec_config {
 	struct rkisp1_ext_params_block_header header;
 	struct rkisp1_cif_isp_aec_config config;
 } __attribute__((aligned(8)));
 
 /**
  * struct rkisp1_ext_params_afc_config - RkISP1 extensible params AFC config
  *
  * RkISP1 extensible parameters Auto-Focus statistics configuration block.
  * Identified by :c:type:`RKISP1_EXT_PARAMS_BLOCK_TYPE_AFC_MEAS`.
  *
  * @header: The RkISP1 extensible parameters header, see
  *	    :c:type:`rkisp1_ext_params_block_header`
  * @config: Auto-Focus statistics configuration, see
  *	    :c:type:`rkisp1_cif_isp_afc_config`
  */
 struct rkisp1_ext_params_afc_config {
 	struct rkisp1_ext_params_block_header header;
 	struct rkisp1_cif_isp_afc_config config;
 } __attribute__((aligned(8)));
 
 /**
  * struct rkisp1_ext_params_compand_bls_config - RkISP1 extensible params
  * Compand BLS config
  *
  * RkISP1 extensible parameters Companding configuration block (black level
  * subtraction). Identified by :c:type:`RKISP1_EXT_PARAMS_BLOCK_TYPE_COMPAND_BLS`.
  *
  * @header: The RkISP1 extensible parameters header, see
  *	    :c:type:`rkisp1_ext_params_block_header`
  * @config: Companding BLS configuration, see
  *	    :c:type:`rkisp1_cif_isp_compand_bls_config`
  */
 struct rkisp1_ext_params_compand_bls_config {
 	struct rkisp1_ext_params_block_header header;
 	struct rkisp1_cif_isp_compand_bls_config config;
 } __attribute__((aligned(8)));
 
 /**
  * struct rkisp1_ext_params_compand_curve_config - RkISP1 extensible params
  * Compand curve config
  *
  * RkISP1 extensible parameters Companding configuration block (expand and
  * compression curves). Identified by
  * :c:type:`RKISP1_EXT_PARAMS_BLOCK_TYPE_COMPAND_EXPAND` or
  * :c:type:`RKISP1_EXT_PARAMS_BLOCK_TYPE_COMPAND_COMPRESS`.
  *
  * @header: The RkISP1 extensible parameters header, see
  *	    :c:type:`rkisp1_ext_params_block_header`
  * @config: Companding curve configuration, see
  *	    :c:type:`rkisp1_cif_isp_compand_curve_config`
  */
 struct rkisp1_ext_params_compand_curve_config {
 	struct rkisp1_ext_params_block_header header;
 	struct rkisp1_cif_isp_compand_curve_config config;
 } __attribute__((aligned(8)));
 
 /*
  * The rkisp1_ext_params_compand_curve_config structure is counted twice as it
  * is used for both the COMPAND_EXPAND and COMPAND_COMPRESS block types.
  */
 #define RKISP1_EXT_PARAMS_MAX_SIZE					\
 	(sizeof(struct rkisp1_ext_params_bls_config)			+\
 	sizeof(struct rkisp1_ext_params_dpcc_config)			+\
 	sizeof(struct rkisp1_ext_params_sdg_config)			+\
 	sizeof(struct rkisp1_ext_params_lsc_config)			+\
 	sizeof(struct rkisp1_ext_params_awb_gain_config)		+\
 	sizeof(struct rkisp1_ext_params_flt_config)			+\
 	sizeof(struct rkisp1_ext_params_bdm_config)			+\
 	sizeof(struct rkisp1_ext_params_ctk_config)			+\
 	sizeof(struct rkisp1_ext_params_goc_config)			+\
 	sizeof(struct rkisp1_ext_params_dpf_config)			+\
 	sizeof(struct rkisp1_ext_params_dpf_strength_config)		+\
 	sizeof(struct rkisp1_ext_params_cproc_config)			+\
 	sizeof(struct rkisp1_ext_params_ie_config)			+\
 	sizeof(struct rkisp1_ext_params_awb_meas_config)		+\
 	sizeof(struct rkisp1_ext_params_hst_config)			+\
 	sizeof(struct rkisp1_ext_params_aec_config)			+\
 	sizeof(struct rkisp1_ext_params_afc_config)			+\
 	sizeof(struct rkisp1_ext_params_compand_bls_config)		+\
 	sizeof(struct rkisp1_ext_params_compand_curve_config)		+\
 	sizeof(struct rkisp1_ext_params_compand_curve_config))
 
 /**
  * enum rksip1_ext_param_buffer_version - RkISP1 extensible parameters version
  *
  * @RKISP1_EXT_PARAM_BUFFER_V1: First version of RkISP1 extensible parameters
  */
 enum rksip1_ext_param_buffer_version {
 	RKISP1_EXT_PARAM_BUFFER_V1 = 1,
 };
 
 /**
  * struct rkisp1_ext_params_cfg - RkISP1 extensible parameters configuration
  *
  * This struct contains the configuration parameters of the RkISP1 ISP
  * algorithms, serialized by userspace into a data buffer. Each configuration
  * parameter block is represented by a block-specific structure which contains a
  * :c:type:`rkisp1_ext_params_block_header` entry as first member. Userspace
  * populates the @data buffer with configuration parameters for the blocks that
  * it intends to configure. As a consequence, the data buffer effective size
  * changes according to the number of ISP blocks that userspace intends to
  * configure and is set by userspace in the @data_size field.
  *
  * The parameters buffer is versioned by the @version field to allow modifying
  * and extending its definition. Userspace shall populate the @version field to
  * inform the driver about the version it intends to use. The driver will parse
  * and handle the @data buffer according to the data layout specific to the
  * indicated version and return an error if the desired version is not
  * supported.
  *
  * Currently the single RKISP1_EXT_PARAM_BUFFER_V1 version is supported.
  * When a new format version will be added, a mechanism for userspace to query
  * the supported format versions will be implemented in the form of a read-only
  * V4L2 control. If such control is not available, userspace should assume only
  * RKISP1_EXT_PARAM_BUFFER_V1 is supported by the driver.
  *
  * For each ISP block that userspace wants to configure, a block-specific
  * structure is appended to the @data buffer, one after the other without gaps
  * in between nor overlaps. Userspace shall populate the @data_size field with
  * the effective size, in bytes, of the @data buffer.
  *
  * The expected memory layout of the parameters buffer is::
  *
  *	+-------------------- struct rkisp1_ext_params_cfg -------------------+
  *	| version = RKISP_EXT_PARAMS_BUFFER_V1;                               |
  *	| data_size = sizeof(struct rkisp1_ext_params_bls_config)             |
  *	|           + sizeof(struct rkisp1_ext_params_dpcc_config);           |
  *	| +------------------------- data  ---------------------------------+ |
  *	| | +------------- struct rkisp1_ext_params_bls_config -----------+ | |
  *	| | | +-------- struct rkisp1_ext_params_block_header  ---------+ | | |
  *	| | | | type = RKISP1_EXT_PARAMS_BLOCK_TYPE_BLS;                | | | |
  *	| | | | flags = RKISP1_EXT_PARAMS_FL_BLOCK_ENABLE;              | | | |
  *	| | | | size = sizeof(struct rkisp1_ext_params_bls_config);     | | | |
  *	| | | +---------------------------------------------------------+ | | |
  *	| | | +---------- struct rkisp1_cif_isp_bls_config -------------+ | | |
  *	| | | | enable_auto = 0;                                        | | | |
  *	| | | | fixed_val.r = 256;                                      | | | |
  *	| | | | fixed_val.gr = 256;                                     | | | |
  *	| | | | fixed_val.gb = 256;                                     | | | |
  *	| | | | fixed_val.b = 256;                                      | | | |
  *	| | | +---------------------------------------------------------+ | | |
  *	| | +------------ struct rkisp1_ext_params_dpcc_config -----------+ | |
  *	| | | +-------- struct rkisp1_ext_params_block_header  ---------+ | | |
  *	| | | | type = RKISP1_EXT_PARAMS_BLOCK_TYPE_DPCC;               | | | |
  *	| | | | flags = RKISP1_EXT_PARAMS_FL_BLOCK_ENABLE;              | | | |
  *	| | | | size = sizeof(struct rkisp1_ext_params_dpcc_config);    | | | |
  *	| | | +---------------------------------------------------------+ | | |
  *	| | | +---------- struct rkisp1_cif_isp_dpcc_config ------------+ | | |
  *	| | | | mode = RKISP1_CIF_ISP_DPCC_MODE_STAGE1_ENABLE;          | | | |
  *	| | | | output_mode =                                           | | | |
  *	| | | |   RKISP1_CIF_ISP_DPCC_OUTPUT_MODE_STAGE1_INCL_G_CENTER; | | | |
  *	| | | | set_use = ... ;                                         | | | |
  *	| | | | ...  = ... ;                                            | | | |
  *	| | | +---------------------------------------------------------+ | | |
  *	| | +-------------------------------------------------------------+ | |
  *	| +-----------------------------------------------------------------+ |
  *	+---------------------------------------------------------------------+
  *
  * @version: The RkISP1 extensible parameters buffer version, see
  *	     :c:type:`rksip1_ext_param_buffer_version`
  * @data_size: The RkISP1 configuration data effective size, excluding this
  *	       header
  * @data: The RkISP1 extensible configuration data blocks
  */
 struct rkisp1_ext_params_cfg {
 	__u32 version;
 	__u32 data_size;
 	__u8 data[RKISP1_EXT_PARAMS_MAX_SIZE];
 };
 
 #endif /* _RKISP1_CONFIG_H */