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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2008-2009 Texas Instruments Inc
 *
 * isif header file
 */
#ifndef _ISIF_H
#define _ISIF_H

#include <media/davinci/ccdc_types.h>
#include <media/davinci/vpfe_types.h>

/* isif float type S8Q8/U8Q8 */
struct isif_float_8 {
	/* 8 bit integer part */
	__u8 integer;
	/* 8 bit decimal part */
	__u8 decimal;
};

/* isif float type U16Q16/S16Q16 */
struct isif_float_16 {
	/* 16 bit integer part */
	__u16 integer;
	/* 16 bit decimal part */
	__u16 decimal;
};

/************************************************************************
 *   Vertical Defect Correction parameters
 ***********************************************************************/
/* Defect Correction (DFC) table entry */
struct isif_vdfc_entry {
	/* vertical position of defect */
	__u16 pos_vert;
	/* horizontal position of defect */
	__u16 pos_horz;
	/*
	 * Defect level of Vertical line defect position. This is subtracted
	 * from the data at the defect position
	 */
	__u8 level_at_pos;
	/*
	 * Defect level of the pixels upper than the vertical line defect.
	 * This is subtracted from the data
	 */
	__u8 level_up_pixels;
	/*
	 * Defect level of the pixels lower than the vertical line defect.
	 * This is subtracted from the data
	 */
	__u8 level_low_pixels;
};

#define ISIF_VDFC_TABLE_SIZE		8
struct isif_dfc {
	/* enable vertical defect correction */
	__u8 en;
	/* Defect level subtraction. Just fed through if saturating */
#define	ISIF_VDFC_NORMAL		0
	/*
	 * Defect level subtraction. Horizontal interpolation ((i-2)+(i+2))/2
	 * if data saturating
	 */
#define ISIF_VDFC_HORZ_INTERPOL_IF_SAT	1
	/* Horizontal interpolation (((i-2)+(i+2))/2) */
#define	ISIF_VDFC_HORZ_INTERPOL		2
	/* one of the vertical defect correction modes above */
	__u8 corr_mode;
	/* 0 - whole line corrected, 1 - not pixels upper than the defect */
	__u8 corr_whole_line;
#define ISIF_VDFC_NO_SHIFT		0
#define ISIF_VDFC_SHIFT_1		1
#define ISIF_VDFC_SHIFT_2		2
#define ISIF_VDFC_SHIFT_3		3
#define ISIF_VDFC_SHIFT_4		4
	/*
	 * defect level shift value. level_at_pos, level_upper_pos,
	 * and level_lower_pos can be shifted up by this value. Choose
	 * one of the values above
	 */
	__u8 def_level_shift;
	/* defect saturation level */
	__u16 def_sat_level;
	/* number of vertical defects. Max is ISIF_VDFC_TABLE_SIZE */
	__u16 num_vdefects;
	/* VDFC table ptr */
	struct isif_vdfc_entry table[ISIF_VDFC_TABLE_SIZE];
};

struct isif_horz_bclamp {

	/* Horizontal clamp disabled. Only vertical clamp value is subtracted */
#define	ISIF_HORZ_BC_DISABLE		0
	/*
	 * Horizontal clamp value is calculated and subtracted from image data
	 * along with vertical clamp value
	 */
#define ISIF_HORZ_BC_CLAMP_CALC_ENABLED	1
	/*
	 * Horizontal clamp value calculated from previous image is subtracted
	 * from image data along with vertical clamp value.
	 */
#define ISIF_HORZ_BC_CLAMP_NOT_UPDATED	2
	/* horizontal clamp mode. One of the values above */
	__u8 mode;
	/*
	 * pixel value limit enable.
	 *  0 - limit disabled
	 *  1 - pixel value limited to 1023
	 */
	__u8 clamp_pix_limit;
	/* Select Most left window for bc calculation */
#define	ISIF_SEL_MOST_LEFT_WIN		0
	/* Select Most right window for bc calculation */
#define ISIF_SEL_MOST_RIGHT_WIN		1
	/* Select most left or right window for clamp val calculation */
	__u8 base_win_sel_calc;
	/* Window count per color for calculation. range 1-32 */
	__u8 win_count_calc;
	/* Window start position - horizontal for calculation. 0 - 8191 */
	__u16 win_start_h_calc;
	/* Window start position - vertical for calculation 0 - 8191 */
	__u16 win_start_v_calc;
#define ISIF_HORZ_BC_SZ_H_2PIXELS	0
#define ISIF_HORZ_BC_SZ_H_4PIXELS	1
#define ISIF_HORZ_BC_SZ_H_8PIXELS	2
#define ISIF_HORZ_BC_SZ_H_16PIXELS	3
	/* Width of the sample window in pixels for calculation */
	__u8 win_h_sz_calc;
#define ISIF_HORZ_BC_SZ_V_32PIXELS	0
#define ISIF_HORZ_BC_SZ_V_64PIXELS	1
#define	ISIF_HORZ_BC_SZ_V_128PIXELS	2
#define ISIF_HORZ_BC_SZ_V_256PIXELS	3
	/* Height of the sample window in pixels for calculation */
	__u8 win_v_sz_calc;
};

/************************************************************************
 *  Black Clamp parameters
 ***********************************************************************/
struct isif_vert_bclamp {
	/* Reset value used is the clamp value calculated */
#define	ISIF_VERT_BC_USE_HORZ_CLAMP_VAL		0
	/* Reset value used is reset_clamp_val configured */
#define	ISIF_VERT_BC_USE_CONFIG_CLAMP_VAL	1
	/* No update, previous image value is used */
#define	ISIF_VERT_BC_NO_UPDATE			2
	/*
	 * Reset value selector for vertical clamp calculation. Use one of
	 * the above values
	 */
	__u8 reset_val_sel;
	/* U8Q8. Line average coefficient used in vertical clamp calculation */
	__u8 line_ave_coef;
	/* Height of the optical black region for calculation */
	__u16 ob_v_sz_calc;
	/* Optical black region start position - horizontal. 0 - 8191 */
	__u16 ob_start_h;
	/* Optical black region start position - vertical 0 - 8191 */
	__u16 ob_start_v;
};

struct isif_black_clamp {
	/*
	 * This offset value is added irrespective of the clamp enable status.
	 * S13
	 */
	__u16 dc_offset;
	/*
	 * Enable black/digital clamp value to be subtracted from the image data
	 */
	__u8 en;
	/*
	 * black clamp mode. same/separate clamp for 4 colors
	 * 0 - disable - same clamp value for all colors
	 * 1 - clamp value calculated separately for all colors
	 */
	__u8 bc_mode_color;
	/* Vertical start position for bc subtraction */
	__u16 vert_start_sub;
	/* Black clamp for horizontal direction */
	struct isif_horz_bclamp horz;
	/* Black clamp for vertical direction */
	struct isif_vert_bclamp vert;
};

/*************************************************************************
** Color Space Conversion (CSC)
*************************************************************************/
#define ISIF_CSC_NUM_COEFF	16
struct isif_color_space_conv {
	/* Enable color space conversion */
	__u8 en;
	/*
	 * csc coefficient table. S8Q5, M00 at index 0, M01 at index 1, and
	 * so forth
	 */
	struct isif_float_8 coeff[ISIF_CSC_NUM_COEFF];
};


/*************************************************************************
**  Black  Compensation parameters
*************************************************************************/
struct isif_black_comp {
	/* Comp for Red */
	__s8 r_comp;
	/* Comp for Gr */
	__s8 gr_comp;
	/* Comp for Blue */
	__s8 b_comp;
	/* Comp for Gb */
	__s8 gb_comp;
};

/*************************************************************************
**  Gain parameters
*************************************************************************/
struct isif_gain {
	/* Gain for Red or ye */
	struct isif_float_16 r_ye;
	/* Gain for Gr or cy */
	struct isif_float_16 gr_cy;
	/* Gain for Gb or g */
	struct isif_float_16 gb_g;
	/* Gain for Blue or mg */
	struct isif_float_16 b_mg;
};

#define ISIF_LINEAR_TAB_SIZE	192
/*************************************************************************
**  Linearization parameters
*************************************************************************/
struct isif_linearize {
	/* Enable or Disable linearization of data */
	__u8 en;
	/* Shift value applied */
	__u8 corr_shft;
	/* scale factor applied U11Q10 */
	struct isif_float_16 scale_fact;
	/* Size of the linear table */
	__u16 table[ISIF_LINEAR_TAB_SIZE];
};

/* Color patterns */
#define ISIF_RED	0
#define	ISIF_GREEN_RED	1
#define ISIF_GREEN_BLUE	2
#define ISIF_BLUE	3
struct isif_col_pat {
	__u8 olop;
	__u8 olep;
	__u8 elop;
	__u8 elep;
};

/*************************************************************************
**  Data formatter parameters
*************************************************************************/
struct isif_fmtplen {
	/*
	 * number of program entries for SET0, range 1 - 16
	 * when fmtmode is ISIF_SPLIT, 1 - 8 when fmtmode is
	 * ISIF_COMBINE
	 */
	__u16 plen0;
	/*
	 * number of program entries for SET1, range 1 - 16
	 * when fmtmode is ISIF_SPLIT, 1 - 8 when fmtmode is
	 * ISIF_COMBINE
	 */
	__u16 plen1;
	/**
	 * number of program entries for SET2, range 1 - 16
	 * when fmtmode is ISIF_SPLIT, 1 - 8 when fmtmode is
	 * ISIF_COMBINE
	 */
	__u16 plen2;
	/**
	 * number of program entries for SET3, range 1 - 16
	 * when fmtmode is ISIF_SPLIT, 1 - 8 when fmtmode is
	 * ISIF_COMBINE
	 */
	__u16 plen3;
};

struct isif_fmt_cfg {
#define ISIF_SPLIT		0
#define ISIF_COMBINE		1
	/* Split or combine or line alternate */
	__u8 fmtmode;
	/* enable or disable line alternating mode */
	__u8 ln_alter_en;
#define ISIF_1LINE		0
#define	ISIF_2LINES		1
#define	ISIF_3LINES		2
#define	ISIF_4LINES		3
	/* Split/combine line number */
	__u8 lnum;
	/* Address increment Range 1 - 16 */
	__u8 addrinc;
};

struct isif_fmt_addr_ptr {
	/* Initial address */
	__u32 init_addr;
	/* output line number */
#define ISIF_1STLINE		0
#define	ISIF_2NDLINE		1
#define	ISIF_3RDLINE		2
#define	ISIF_4THLINE		3
	__u8 out_line;
};

struct isif_fmtpgm_ap {
	/* program address pointer */
	__u8 pgm_aptr;
	/* program address increment or decrement */
	__u8 pgmupdt;
};

struct isif_data_formatter {
	/* Enable/Disable data formatter */
	__u8 en;
	/* data formatter configuration */
	struct isif_fmt_cfg cfg;
	/* Formatter program entries length */
	struct isif_fmtplen plen;
	/* first pixel in a line fed to formatter */
	__u16 fmtrlen;
	/* HD interval for output line. Only valid when split line */
	__u16 fmthcnt;
	/* formatter address pointers */
	struct isif_fmt_addr_ptr fmtaddr_ptr[16];
	/* program enable/disable */
	__u8 pgm_en[32];
	/* program address pointers */
	struct isif_fmtpgm_ap fmtpgm_ap[32];
};

struct isif_df_csc {
	/* Color Space Conversion configuration, 0 - csc, 1 - df */
	__u8 df_or_csc;
	/* csc configuration valid if df_or_csc is 0 */
	struct isif_color_space_conv csc;
	/* data formatter configuration valid if df_or_csc is 1 */
	struct isif_data_formatter df;
	/* start pixel in a line at the input */
	__u32 start_pix;
	/* number of pixels in input line */
	__u32 num_pixels;
	/* start line at the input */
	__u32 start_line;
	/* number of lines at the input */
	__u32 num_lines;
};

struct isif_gain_offsets_adj {
	/* Gain adjustment per color */
	struct isif_gain gain;
	/* Offset adjustment */
	__u16 offset;
	/* Enable or Disable Gain adjustment for SDRAM data */
	__u8 gain_sdram_en;
	/* Enable or Disable Gain adjustment for IPIPE data */
	__u8 gain_ipipe_en;
	/* Enable or Disable Gain adjustment for H3A data */
	__u8 gain_h3a_en;
	/* Enable or Disable Gain adjustment for SDRAM data */
	__u8 offset_sdram_en;
	/* Enable or Disable Gain adjustment for IPIPE data */
	__u8 offset_ipipe_en;
	/* Enable or Disable Gain adjustment for H3A data */
	__u8 offset_h3a_en;
};

struct isif_cul {
	/* Horizontal Cull pattern for odd lines */
	__u8 hcpat_odd;
	/* Horizontal Cull pattern for even lines */
	__u8 hcpat_even;
	/* Vertical Cull pattern */
	__u8 vcpat;
	/* Enable or disable lpf. Apply when cull is enabled */
	__u8 en_lpf;
};

struct isif_compress {
#define ISIF_ALAW		0
#define ISIF_DPCM		1
#define ISIF_NO_COMPRESSION	2
	/* Compression Algorithm used */
	__u8 alg;
	/* Choose Predictor1 for DPCM compression */
#define ISIF_DPCM_PRED1		0
	/* Choose Predictor2 for DPCM compression */
#define ISIF_DPCM_PRED2		1
	/* Predictor for DPCM compression */
	__u8 pred;
};

/* all the stuff in this struct will be provided by userland */
struct isif_config_params_raw {
	/* Linearization parameters for image sensor data input */
	struct isif_linearize linearize;
	/* Data formatter or CSC */
	struct isif_df_csc df_csc;
	/* Defect Pixel Correction (DFC) configuration */
	struct isif_dfc dfc;
	/* Black/Digital Clamp configuration */
	struct isif_black_clamp bclamp;
	/* Gain, offset adjustments */
	struct isif_gain_offsets_adj gain_offset;
	/* Culling */
	struct isif_cul culling;
	/* A-Law and DPCM compression options */
	struct isif_compress compress;
	/* horizontal offset for Gain/LSC/DFC */
	__u16 horz_offset;
	/* vertical offset for Gain/LSC/DFC */
	__u16 vert_offset;
	/* color pattern for field 0 */
	struct isif_col_pat col_pat_field0;
	/* color pattern for field 1 */
	struct isif_col_pat col_pat_field1;
#define ISIF_NO_SHIFT		0
#define	ISIF_1BIT_SHIFT		1
#define	ISIF_2BIT_SHIFT		2
#define	ISIF_3BIT_SHIFT		3
#define	ISIF_4BIT_SHIFT		4
#define ISIF_5BIT_SHIFT		5
#define ISIF_6BIT_SHIFT		6
	/* Data shift applied before storing to SDRAM */
	__u8 data_shift;
	/* enable input test pattern generation */
	__u8 test_pat_gen;
};

#ifdef __KERNEL__
struct isif_ycbcr_config {
	/* isif pixel format */
	enum ccdc_pixfmt pix_fmt;
	/* isif frame format */
	enum ccdc_frmfmt frm_fmt;
	/* ISIF crop window */
	struct v4l2_rect win;
	/* field polarity */
	enum vpfe_pin_pol fid_pol;
	/* interface VD polarity */
	enum vpfe_pin_pol vd_pol;
	/* interface HD polarity */
	enum vpfe_pin_pol hd_pol;
	/* isif pix order. Only used for ycbcr capture */
	enum ccdc_pixorder pix_order;
	/* isif buffer type. Only used for ycbcr capture */
	enum ccdc_buftype buf_type;
};

/* MSB of image data connected to sensor port */
enum isif_data_msb {
	ISIF_BIT_MSB_15,
	ISIF_BIT_MSB_14,
	ISIF_BIT_MSB_13,
	ISIF_BIT_MSB_12,
	ISIF_BIT_MSB_11,
	ISIF_BIT_MSB_10,
	ISIF_BIT_MSB_9,
	ISIF_BIT_MSB_8,
	ISIF_BIT_MSB_7
};

enum isif_cfa_pattern {
	ISIF_CFA_PAT_MOSAIC,
	ISIF_CFA_PAT_STRIPE
};

struct isif_params_raw {
	/* isif pixel format */
	enum ccdc_pixfmt pix_fmt;
	/* isif frame format */
	enum ccdc_frmfmt frm_fmt;
	/* video window */
	struct v4l2_rect win;
	/* field polarity */
	enum vpfe_pin_pol fid_pol;
	/* interface VD polarity */
	enum vpfe_pin_pol vd_pol;
	/* interface HD polarity */
	enum vpfe_pin_pol hd_pol;
	/* buffer type. Applicable for interlaced mode */
	enum ccdc_buftype buf_type;
	/* Gain values */
	struct isif_gain gain;
	/* cfa pattern */
	enum isif_cfa_pattern cfa_pat;
	/* Data MSB position */
	enum isif_data_msb data_msb;
	/* Enable horizontal flip */
	unsigned char horz_flip_en;
	/* Enable image invert vertically */
	unsigned char image_invert_en;

	/* all the userland defined stuff*/
	struct isif_config_params_raw config_params;
};

enum isif_data_pack {
	ISIF_PACK_16BIT,
	ISIF_PACK_12BIT,
	ISIF_PACK_8BIT
};

#define ISIF_WIN_NTSC				{0, 0, 720, 480}
#define ISIF_WIN_VGA				{0, 0, 640, 480}

#endif
#endif
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