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/*

 * omap3isp.h

 *

 * TI OMAP3 ISP - User-space API

 *

 * Copyright (C) 2010 Nokia Corporation

 * Copyright (C) 2009 Texas Instruments, Inc.

 *

 * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

 *           Sakari Ailus <sakari.ailus@iki.fi>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful, but

 * WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA

 * 02110-1301 USA

 */

#ifndef OMAP3_ISP_USER_H

#define OMAP3_ISP_USER_H

#include <linux/types.h>

#include <linux/videodev2.h>

/*

 * Private IOCTLs

 *

 * VIDIOC_OMAP3ISP_CCDC_CFG: Set CCDC configuration

 * VIDIOC_OMAP3ISP_PRV_CFG: Set preview engine configuration

 * VIDIOC_OMAP3ISP_AEWB_CFG: Set AEWB module configuration

 * VIDIOC_OMAP3ISP_HIST_CFG: Set histogram module configuration

 * VIDIOC_OMAP3ISP_AF_CFG: Set auto-focus module configuration

 * VIDIOC_OMAP3ISP_STAT_REQ: Read statistics (AEWB/AF/histogram) data

 * VIDIOC_OMAP3ISP_STAT_EN: Enable/disable a statistics module

 */

#define VIDIOC_OMAP3ISP_CCDC_CFG \

        _IOWR('V', BASE_VIDIOC_PRIVATE + 1, struct omap3isp_ccdc_update_config)

#define VIDIOC_OMAP3ISP_PRV_CFG \

        _IOWR('V', BASE_VIDIOC_PRIVATE + 2, struct omap3isp_prev_update_config)

#define VIDIOC_OMAP3ISP_AEWB_CFG \

        _IOWR('V', BASE_VIDIOC_PRIVATE + 3, struct omap3isp_h3a_aewb_config)

#define VIDIOC_OMAP3ISP_HIST_CFG \

        _IOWR('V', BASE_VIDIOC_PRIVATE + 4, struct omap3isp_hist_config)

#define VIDIOC_OMAP3ISP_AF_CFG \

        _IOWR('V', BASE_VIDIOC_PRIVATE + 5, struct omap3isp_h3a_af_config)

#define VIDIOC_OMAP3ISP_STAT_REQ \

        _IOWR('V', BASE_VIDIOC_PRIVATE + 6, struct omap3isp_stat_data)

#define VIDIOC_OMAP3ISP_STAT_EN \

        _IOWR('V', BASE_VIDIOC_PRIVATE + 7, unsigned long)

/*

 * Events

 *

 * V4L2_EVENT_OMAP3ISP_AEWB: AEWB statistics data ready

 * V4L2_EVENT_OMAP3ISP_AF: AF statistics data ready

 * V4L2_EVENT_OMAP3ISP_HIST: Histogram statistics data ready

 */

#define V4L2_EVENT_OMAP3ISP_CLASS       (V4L2_EVENT_PRIVATE_START | 0x100)

#define V4L2_EVENT_OMAP3ISP_AEWB        (V4L2_EVENT_OMAP3ISP_CLASS | 0x1)

#define V4L2_EVENT_OMAP3ISP_AF          (V4L2_EVENT_OMAP3ISP_CLASS | 0x2)

#define V4L2_EVENT_OMAP3ISP_HIST        (V4L2_EVENT_OMAP3ISP_CLASS | 0x3)

struct omap3isp_stat_event_status {

        __u32 frame_number;

        __u16 config_counter;

        __u8 buf_err;

};

/* AE/AWB related structures and flags*/

/* H3A Range Constants */

#define OMAP3ISP_AEWB_MAX_SATURATION_LIM        1023

#define OMAP3ISP_AEWB_MIN_WIN_H                 2

#define OMAP3ISP_AEWB_MAX_WIN_H                 256

#define OMAP3ISP_AEWB_MIN_WIN_W                 6

#define OMAP3ISP_AEWB_MAX_WIN_W                 256

#define OMAP3ISP_AEWB_MIN_WINVC                 1

#define OMAP3ISP_AEWB_MIN_WINHC                 1

#define OMAP3ISP_AEWB_MAX_WINVC                 128

#define OMAP3ISP_AEWB_MAX_WINHC                 36

#define OMAP3ISP_AEWB_MAX_WINSTART              4095

#define OMAP3ISP_AEWB_MIN_SUB_INC               2

#define OMAP3ISP_AEWB_MAX_SUB_INC               32

#define OMAP3ISP_AEWB_MAX_BUF_SIZE              83600

#define OMAP3ISP_AF_IIRSH_MIN                   0

#define OMAP3ISP_AF_IIRSH_MAX                   4095

#define OMAP3ISP_AF_PAXEL_HORIZONTAL_COUNT_MIN  1

#define OMAP3ISP_AF_PAXEL_HORIZONTAL_COUNT_MAX  36

#define OMAP3ISP_AF_PAXEL_VERTICAL_COUNT_MIN    1

#define OMAP3ISP_AF_PAXEL_VERTICAL_COUNT_MAX    128

#define OMAP3ISP_AF_PAXEL_INCREMENT_MIN         2

#define OMAP3ISP_AF_PAXEL_INCREMENT_MAX         32

#define OMAP3ISP_AF_PAXEL_HEIGHT_MIN            2

#define OMAP3ISP_AF_PAXEL_HEIGHT_MAX            256

#define OMAP3ISP_AF_PAXEL_WIDTH_MIN             16

#define OMAP3ISP_AF_PAXEL_WIDTH_MAX             256

#define OMAP3ISP_AF_PAXEL_HZSTART_MIN           1

#define OMAP3ISP_AF_PAXEL_HZSTART_MAX           4095

#define OMAP3ISP_AF_PAXEL_VTSTART_MIN           0

#define OMAP3ISP_AF_PAXEL_VTSTART_MAX           4095

#define OMAP3ISP_AF_THRESHOLD_MAX               255

#define OMAP3ISP_AF_COEF_MAX                    4095

#define OMAP3ISP_AF_PAXEL_SIZE                  48

#define OMAP3ISP_AF_MAX_BUF_SIZE                221184

/**

 * struct omap3isp_h3a_aewb_config - AE AWB configuration reset values

 * saturation_limit: Saturation limit.

 * @win_height: Window Height. Range 2 - 256, even values only.

 * @win_width: Window Width. Range 6 - 256, even values only.

 * @ver_win_count: Vertical Window Count. Range 1 - 128.

 * @hor_win_count: Horizontal Window Count. Range 1 - 36.

 * @ver_win_start: Vertical Window Start. Range 0 - 4095.

 * @hor_win_start: Horizontal Window Start. Range 0 - 4095.

 * @blk_ver_win_start: Black Vertical Windows Start. Range 0 - 4095.

 * @blk_win_height: Black Window Height. Range 2 - 256, even values only.

 * @subsample_ver_inc: Subsample Vertical points increment Range 2 - 32, even

 *                     values only.

 * @subsample_hor_inc: Subsample Horizontal points increment Range 2 - 32, even

 *                     values only.

 * @alaw_enable: AEW ALAW EN flag.

 */

struct omap3isp_h3a_aewb_config {

        /*

         * Common fields.

         * They should be the first ones and must be in the same order as in

         * ispstat_generic_config struct.

         */

        __u32 buf_size;

        __u16 config_counter;

        /* Private fields */

        __u16 saturation_limit;

        __u16 win_height;

        __u16 win_width;

        __u16 ver_win_count;

        __u16 hor_win_count;

        __u16 ver_win_start;

        __u16 hor_win_start;

        __u16 blk_ver_win_start;

        __u16 blk_win_height;

        __u16 subsample_ver_inc;

        __u16 subsample_hor_inc;

        __u8 alaw_enable;

};

/**

 * struct omap3isp_stat_data - Statistic data sent to or received from user

 * @ts: Timestamp of returned framestats.

 * @buf: Pointer to pass to user.

 * @frame_number: Frame number of requested stats.

 * @cur_frame: Current frame number being processed.

 * @config_counter: Number of the configuration associated with the data.

 */

struct omap3isp_stat_data {

        struct timeval ts;

        void *buf;

        __u32 buf_size;

        __u16 frame_number;

        __u16 cur_frame;

        __u16 config_counter;

};

/* Histogram related structs */

/* Flags for number of bins */

#define OMAP3ISP_HIST_BINS_32           0

#define OMAP3ISP_HIST_BINS_64           1

#define OMAP3ISP_HIST_BINS_128          2

#define OMAP3ISP_HIST_BINS_256          3

/* Number of bins * 4 colors * 4-bytes word */

#define OMAP3ISP_HIST_MEM_SIZE_BINS(n)  ((1 << ((n)+5))*4*4)

#define OMAP3ISP_HIST_MEM_SIZE          1024

#define OMAP3ISP_HIST_MIN_REGIONS       1

#define OMAP3ISP_HIST_MAX_REGIONS       4

#define OMAP3ISP_HIST_MAX_WB_GAIN       255

#define OMAP3ISP_HIST_MIN_WB_GAIN       0

#define OMAP3ISP_HIST_MAX_BIT_WIDTH     14

#define OMAP3ISP_HIST_MIN_BIT_WIDTH     8

#define OMAP3ISP_HIST_MAX_WG            4

#define OMAP3ISP_HIST_MAX_BUF_SIZE      4096

/* Source */

#define OMAP3ISP_HIST_SOURCE_CCDC       0

#define OMAP3ISP_HIST_SOURCE_MEM        1

/* CFA pattern */

#define OMAP3ISP_HIST_CFA_BAYER         0

#define OMAP3ISP_HIST_CFA_FOVEONX3      1

struct omap3isp_hist_region {

        __u16 h_start;

        __u16 h_end;

        __u16 v_start;

        __u16 v_end;

};

struct omap3isp_hist_config {

        /*

         * Common fields.

         * They should be the first ones and must be in the same order as in

         * ispstat_generic_config struct.

         */

        __u32 buf_size;

        __u16 config_counter;

        __u8 num_acc_frames;    /* Num of image frames to be processed and

                                   accumulated for each histogram frame */

        __u16 hist_bins;        /* number of bins: 32, 64, 128, or 256 */

        __u8 cfa;               /* BAYER or FOVEON X3 */

        __u8 wg[OMAP3ISP_HIST_MAX_WG];  /* White Balance Gain */

        __u8 num_regions;       /* number of regions to be configured */

        struct omap3isp_hist_region region[OMAP3ISP_HIST_MAX_REGIONS];

};

/* Auto Focus related structs */

#define OMAP3ISP_AF_NUM_COEF            11

enum omap3isp_h3a_af_fvmode {

        OMAP3ISP_AF_MODE_SUMMED = 0,

        OMAP3ISP_AF_MODE_PEAK = 1

};

/* Red, Green, and blue pixel location in the AF windows */

enum omap3isp_h3a_af_rgbpos {

        OMAP3ISP_AF_GR_GB_BAYER = 0,     /* GR and GB as Bayer pattern */

        OMAP3ISP_AF_RG_GB_BAYER = 1,    /* RG and GB as Bayer pattern */

        OMAP3ISP_AF_GR_BG_BAYER = 2,    /* GR and BG as Bayer pattern */

        OMAP3ISP_AF_RG_BG_BAYER = 3,    /* RG and BG as Bayer pattern */

        OMAP3ISP_AF_GG_RB_CUSTOM = 4,   /* GG and RB as custom pattern */

        OMAP3ISP_AF_RB_GG_CUSTOM = 5    /* RB and GG as custom pattern */

};

/* Contains the information regarding the Horizontal Median Filter */

struct omap3isp_h3a_af_hmf {

        __u8 enable;    /* Status of Horizontal Median Filter */

        __u8 threshold; /* Threshold Value for Horizontal Median Filter */

};

/* Contains the information regarding the IIR Filters */

struct omap3isp_h3a_af_iir {

        __u16 h_start;                  /* IIR horizontal start */

        __u16 coeff_set0[OMAP3ISP_AF_NUM_COEF]; /* Filter coefficient, set 0 */

        __u16 coeff_set1[OMAP3ISP_AF_NUM_COEF]; /* Filter coefficient, set 1 */

};

/* Contains the information regarding the Paxels Structure in AF Engine */

struct omap3isp_h3a_af_paxel {

        __u16 h_start;  /* Horizontal Start Position */

        __u16 v_start;  /* Vertical Start Position */

        __u8 width;     /* Width of the Paxel */

        __u8 height;    /* Height of the Paxel */

        __u8 h_cnt;     /* Horizontal Count */

        __u8 v_cnt;     /* vertical Count */

        __u8 line_inc;  /* Line Increment */

};

/* Contains the parameters required for hardware set up of AF Engine */

struct omap3isp_h3a_af_config {

        /*

         * Common fields.

         * They should be the first ones and must be in the same order as in

         * ispstat_generic_config struct.

         */

        __u32 buf_size;

        __u16 config_counter;

        struct omap3isp_h3a_af_hmf hmf;         /* HMF configurations */

        struct omap3isp_h3a_af_iir iir;         /* IIR filter configurations */

        struct omap3isp_h3a_af_paxel paxel;     /* Paxel parameters */

        enum omap3isp_h3a_af_rgbpos rgb_pos;    /* RGB Positions */

        enum omap3isp_h3a_af_fvmode fvmode;     /* Accumulator mode */

        __u8 alaw_enable;                       /* AF ALAW status */

};

/* ISP CCDC structs */

/* Abstraction layer CCDC configurations */

#define OMAP3ISP_CCDC_ALAW              (1 << 0)

#define OMAP3ISP_CCDC_LPF               (1 << 1)

#define OMAP3ISP_CCDC_BLCLAMP           (1 << 2)

#define OMAP3ISP_CCDC_BCOMP             (1 << 3)

#define OMAP3ISP_CCDC_FPC               (1 << 4)

#define OMAP3ISP_CCDC_CULL              (1 << 5)

#define OMAP3ISP_CCDC_CONFIG_LSC        (1 << 7)

#define OMAP3ISP_CCDC_TBL_LSC           (1 << 8)

#define OMAP3ISP_RGB_MAX                3

/* Enumeration constants for Alaw input width */

enum omap3isp_alaw_ipwidth {

        OMAP3ISP_ALAW_BIT12_3 = 0x3,

        OMAP3ISP_ALAW_BIT11_2 = 0x4,

        OMAP3ISP_ALAW_BIT10_1 = 0x5,

        OMAP3ISP_ALAW_BIT9_0 = 0x6

};

/**

 * struct omap3isp_ccdc_lsc_config - LSC configuration

 * @offset: Table Offset of the gain table.

 * @gain_mode_n: Vertical dimension of a paxel in LSC configuration.

 * @gain_mode_m: Horizontal dimension of a paxel in LSC configuration.

 * @gain_format: Gain table format.

 * @fmtsph: Start pixel horizontal from start of the HS sync pulse.

 * @fmtlnh: Number of pixels in horizontal direction to use for the data

 *          reformatter.

 * @fmtslv: Start line from start of VS sync pulse for the data reformatter.

 * @fmtlnv: Number of lines in vertical direction for the data reformatter.

 * @initial_x: X position, in pixels, of the first active pixel in reference

 *             to the first active paxel. Must be an even number.

 * @initial_y: Y position, in pixels, of the first active pixel in reference

 *             to the first active paxel. Must be an even number.

 * @size: Size of LSC gain table. Filled when loaded from userspace.

 */

struct omap3isp_ccdc_lsc_config {

        __u16 offset;

        __u8 gain_mode_n;

        __u8 gain_mode_m;

        __u8 gain_format;

        __u16 fmtsph;

        __u16 fmtlnh;

        __u16 fmtslv;

        __u16 fmtlnv;

        __u8 initial_x;

        __u8 initial_y;

        __u32 size;

};

/**

 * struct omap3isp_ccdc_bclamp - Optical & Digital black clamp subtract

 * @obgain: Optical black average gain.

 * @obstpixel: Start Pixel w.r.t. HS pulse in Optical black sample.

 * @oblines: Optical Black Sample lines.

 * @oblen: Optical Black Sample Length.

 * @dcsubval: Digital Black Clamp subtract value.

 */

struct omap3isp_ccdc_bclamp {

        __u8 obgain;

        __u8 obstpixel;

        __u8 oblines;

        __u8 oblen;

        __u16 dcsubval;

};

/**

 * struct omap3isp_ccdc_fpc - Faulty Pixels Correction

 * @fpnum: Number of faulty pixels to be corrected in the frame.

 * @fpcaddr: Memory address of the FPC Table

 */

struct omap3isp_ccdc_fpc {

        __u16 fpnum;

        __u32 fpcaddr;

};

/**

 * struct omap3isp_ccdc_blcomp - Black Level Compensation parameters

 * @b_mg: B/Mg pixels. 2's complement. -128 to +127.

 * @gb_g: Gb/G pixels. 2's complement. -128 to +127.

 * @gr_cy: Gr/Cy pixels. 2's complement. -128 to +127.

 * @r_ye: R/Ye pixels. 2's complement. -128 to +127.

 */

struct omap3isp_ccdc_blcomp {

        __u8 b_mg;

        __u8 gb_g;

        __u8 gr_cy;

        __u8 r_ye;

};

/**

 * omap3isp_ccdc_culling - Culling parameters

 * @v_pattern: Vertical culling pattern.

 * @h_odd: Horizontal Culling pattern for odd lines.

 * @h_even: Horizontal Culling pattern for even lines.

 */

struct omap3isp_ccdc_culling {

        __u8 v_pattern;

        __u16 h_odd;

        __u16 h_even;

};

/**

 * omap3isp_ccdc_update_config - CCDC configuration

 * @update: Specifies which CCDC registers should be updated.

 * @flag: Specifies which CCDC functions should be enabled.

 * @alawip: Enable/Disable A-Law compression.

 * @bclamp: Black clamp control register.

 * @blcomp: Black level compensation value for RGrGbB Pixels. 2's complement.

 * @fpc: Number of faulty pixels corrected in the frame, address of FPC table.

 * @cull: Cull control register.

 * @lsc: Pointer to LSC gain table.

 */

struct omap3isp_ccdc_update_config {

        __u16 update;

        __u16 flag;

        enum omap3isp_alaw_ipwidth alawip;

        struct omap3isp_ccdc_bclamp *bclamp;

        struct omap3isp_ccdc_blcomp *blcomp;

        struct omap3isp_ccdc_fpc *fpc;

        struct omap3isp_ccdc_lsc_config *lsc_cfg;

        struct omap3isp_ccdc_culling *cull;

        __u8 *lsc;

};

/* Preview configurations */

#define OMAP3ISP_PREV_LUMAENH           (1 << 0)

#define OMAP3ISP_PREV_INVALAW           (1 << 1)

#define OMAP3ISP_PREV_HRZ_MED           (1 << 2)

#define OMAP3ISP_PREV_CFA               (1 << 3)

#define OMAP3ISP_PREV_CHROMA_SUPP       (1 << 4)

#define OMAP3ISP_PREV_WB                (1 << 5)

#define OMAP3ISP_PREV_BLKADJ            (1 << 6)

#define OMAP3ISP_PREV_RGB2RGB           (1 << 7)

#define OMAP3ISP_PREV_COLOR_CONV        (1 << 8)

#define OMAP3ISP_PREV_YC_LIMIT          (1 << 9)

#define OMAP3ISP_PREV_DEFECT_COR        (1 << 10)

/* Bit 11 was OMAP3ISP_PREV_GAMMABYPASS, now merged with OMAP3ISP_PREV_GAMMA */

#define OMAP3ISP_PREV_DRK_FRM_CAPTURE   (1 << 12)

#define OMAP3ISP_PREV_DRK_FRM_SUBTRACT  (1 << 13)

#define OMAP3ISP_PREV_LENS_SHADING      (1 << 14)

#define OMAP3ISP_PREV_NF                (1 << 15)

#define OMAP3ISP_PREV_GAMMA             (1 << 16)

#define OMAP3ISP_PREV_NF_TBL_SIZE       64

#define OMAP3ISP_PREV_CFA_TBL_SIZE      576

#define OMAP3ISP_PREV_CFA_BLK_SIZE      (OMAP3ISP_PREV_CFA_TBL_SIZE / 4)

#define OMAP3ISP_PREV_GAMMA_TBL_SIZE    1024

#define OMAP3ISP_PREV_YENH_TBL_SIZE     128

#define OMAP3ISP_PREV_DETECT_CORRECT_CHANNELS   4

/**

 * struct omap3isp_prev_hmed - Horizontal Median Filter

 * @odddist: Distance between consecutive pixels of same color in the odd line.

 * @evendist: Distance between consecutive pixels of same color in the even

 *            line.

 * @thres: Horizontal median filter threshold.

 */

struct omap3isp_prev_hmed {

        __u8 odddist;

        __u8 evendist;

        __u8 thres;

};

/*

 * Enumeration for CFA Formats supported by preview

 */

enum omap3isp_cfa_fmt {

        OMAP3ISP_CFAFMT_BAYER,

        OMAP3ISP_CFAFMT_SONYVGA,

        OMAP3ISP_CFAFMT_RGBFOVEON,

        OMAP3ISP_CFAFMT_DNSPL,

        OMAP3ISP_CFAFMT_HONEYCOMB,

        OMAP3ISP_CFAFMT_RRGGBBFOVEON

};

/**

 * struct omap3isp_prev_cfa - CFA Interpolation

 * @format: CFA Format Enum value supported by preview.

 * @gradthrs_vert: CFA Gradient Threshold - Vertical.

 * @gradthrs_horz: CFA Gradient Threshold - Horizontal.

 * @table: Pointer to the CFA table.

 */

struct omap3isp_prev_cfa {

        enum omap3isp_cfa_fmt format;

        __u8 gradthrs_vert;

        __u8 gradthrs_horz;

        __u32 table[4][OMAP3ISP_PREV_CFA_BLK_SIZE];

};

/**

 * struct omap3isp_prev_csup - Chrominance Suppression

 * @gain: Gain.

 * @thres: Threshold.

 * @hypf_en: Flag to enable/disable the High Pass Filter.

 */

struct omap3isp_prev_csup {

        __u8 gain;

        __u8 thres;

        __u8 hypf_en;

};

/**

 * struct omap3isp_prev_wbal - White Balance

 * @dgain: Digital gain (U10Q8).

 * @coef3: White balance gain - COEF 3 (U8Q5).

 * @coef2: White balance gain - COEF 2 (U8Q5).

 * @coef1: White balance gain - COEF 1 (U8Q5).

 * @coef0: White balance gain - COEF 0 (U8Q5).

 */

struct omap3isp_prev_wbal {

        __u16 dgain;

        __u8 coef3;

        __u8 coef2;

        __u8 coef1;

        __u8 coef0;

};

/**

 * struct omap3isp_prev_blkadj - Black Level Adjustment

 * @red: Black level offset adjustment for Red in 2's complement format

 * @green: Black level offset adjustment for Green in 2's complement format

 * @blue: Black level offset adjustment for Blue in 2's complement format

 */

struct omap3isp_prev_blkadj {

        /*Black level offset adjustment for Red in 2's complement format */

        __u8 red;

        /*Black level offset adjustment for Green in 2's complement format */

        __u8 green;

        /* Black level offset adjustment for Blue in 2's complement format */

        __u8 blue;

};

/**

 * struct omap3isp_prev_rgbtorgb - RGB to RGB Blending

 * @matrix: Blending values(S12Q8 format)

 *              [RR] [GR] [BR]

 *              [RG] [GG] [BG]

 *              [RB] [GB] [BB]

 * @offset: Blending offset value for R,G,B in 2's complement integer format.

 */

struct omap3isp_prev_rgbtorgb {

        __u16 matrix[OMAP3ISP_RGB_MAX][OMAP3ISP_RGB_MAX];

        __u16 offset[OMAP3ISP_RGB_MAX];

};

/**

 * struct omap3isp_prev_csc - Color Space Conversion from RGB-YCbYCr

 * @matrix: Color space conversion coefficients(S10Q8)

 *              [CSCRY]  [CSCGY]  [CSCBY]

 *              [CSCRCB] [CSCGCB] [CSCBCB]

 *              [CSCRCR] [CSCGCR] [CSCBCR]

 * @offset: CSC offset values for Y offset, CB offset and CR offset respectively

 */

struct omap3isp_prev_csc {

        __u16 matrix[OMAP3ISP_RGB_MAX][OMAP3ISP_RGB_MAX];

        __s16 offset[OMAP3ISP_RGB_MAX];

};

/**

 * struct omap3isp_prev_yclimit - Y, C Value Limit

 * @minC: Minimum C value

 * @maxC: Maximum C value

 * @minY: Minimum Y value

 * @maxY: Maximum Y value

 */

struct omap3isp_prev_yclimit {

        __u8 minC;

        __u8 maxC;

        __u8 minY;

        __u8 maxY;

};

/**

 * struct omap3isp_prev_dcor - Defect correction

 * @couplet_mode_en: Flag to enable or disable the couplet dc Correction in NF

 * @detect_correct: Thresholds for correction bit 0:10 detect 16:25 correct

 */

struct omap3isp_prev_dcor {

        __u8 couplet_mode_en;

        __u32 detect_correct[OMAP3ISP_PREV_DETECT_CORRECT_CHANNELS];

};

/**

 * struct omap3isp_prev_nf - Noise Filter

 * @spread: Spread value to be used in Noise Filter

 * @table: Pointer to the Noise Filter table

 */

struct omap3isp_prev_nf {

        __u8 spread;

        __u32 table[OMAP3ISP_PREV_NF_TBL_SIZE];

};

/**

 * struct omap3isp_prev_gtables - Gamma correction tables

 * @red: Array for red gamma table.

 * @green: Array for green gamma table.

 * @blue: Array for blue gamma table.

 */

struct omap3isp_prev_gtables {

        __u32 red[OMAP3ISP_PREV_GAMMA_TBL_SIZE];

        __u32 green[OMAP3ISP_PREV_GAMMA_TBL_SIZE];

        __u32 blue[OMAP3ISP_PREV_GAMMA_TBL_SIZE];

};

/**

 * struct omap3isp_prev_luma - Luma enhancement

 * @table: Array for luma enhancement table.

 */

struct omap3isp_prev_luma {

        __u32 table[OMAP3ISP_PREV_YENH_TBL_SIZE];

};

/**

 * struct omap3isp_prev_update_config - Preview engine configuration (user)

 * @update: Specifies which ISP Preview registers should be updated.

 * @flag: Specifies which ISP Preview functions should be enabled.

 * @shading_shift: 3bit value of shift used in shading compensation.

 * @luma: Pointer to luma enhancement structure.

 * @hmed: Pointer to structure containing the odd and even distance.

 *        between the pixels in the image along with the filter threshold.

 * @cfa: Pointer to structure containing the CFA interpolation table, CFA.

 *       format in the image, vertical and horizontal gradient threshold.

 * @csup: Pointer to Structure for Chrominance Suppression coefficients.

 * @wbal: Pointer to structure for White Balance.

 * @blkadj: Pointer to structure for Black Adjustment.

 * @rgb2rgb: Pointer to structure for RGB to RGB Blending.

 * @csc: Pointer to structure for Color Space Conversion from RGB-YCbYCr.

 * @yclimit: Pointer to structure for Y, C Value Limit.

 * @dcor: Pointer to structure for defect correction.

 * @nf: Pointer to structure for Noise Filter

 * @gamma: Pointer to gamma structure.

 */

struct omap3isp_prev_update_config {

        __u32 update;

        __u32 flag;

        __u32 shading_shift;

        struct omap3isp_prev_luma *luma;

        struct omap3isp_prev_hmed *hmed;

        struct omap3isp_prev_cfa *cfa;

        struct omap3isp_prev_csup *csup;

        struct omap3isp_prev_wbal *wbal;

        struct omap3isp_prev_blkadj *blkadj;

        struct omap3isp_prev_rgbtorgb *rgb2rgb;

        struct omap3isp_prev_csc *csc;

        struct omap3isp_prev_yclimit *yclimit;

        struct omap3isp_prev_dcor *dcor;

        struct omap3isp_prev_nf *nf;

        struct omap3isp_prev_gtables *gamma;

};

#endif  /* OMAP3_ISP_USER_H */