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omap3isp.h (20943B) - Raw


      1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2 /*
      3  * omap3isp.h
      4  *
      5  * TI OMAP3 ISP - User-space API
      6  *
      7  * Copyright (C) 2010 Nokia Corporation
      8  * Copyright (C) 2009 Texas Instruments, Inc.
      9  *
     10  * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
     11  *	     Sakari Ailus <sakari.ailus@iki.fi>
     12  *
     13  * This program is free software; you can redistribute it and/or modify
     14  * it under the terms of the GNU General Public License version 2 as
     15  * published by the Free Software Foundation.
     16  *
     17  * This program is distributed in the hope that it will be useful, but
     18  * WITHOUT ANY WARRANTY; without even the implied warranty of
     19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     20  * General Public License for more details.
     21  *
     22  * You should have received a copy of the GNU General Public License
     23  * along with this program; if not, write to the Free Software
     24  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
     25  * 02110-1301 USA
     26  */
     27 
     28 #ifndef OMAP3_ISP_USER_H
     29 #define OMAP3_ISP_USER_H
     30 
     31 #include <linux/types.h>
     32 #include <linux/videodev2.h>
     33 
     34 /*
     35  * Private IOCTLs
     36  *
     37  * VIDIOC_OMAP3ISP_CCDC_CFG: Set CCDC configuration
     38  * VIDIOC_OMAP3ISP_PRV_CFG: Set preview engine configuration
     39  * VIDIOC_OMAP3ISP_AEWB_CFG: Set AEWB module configuration
     40  * VIDIOC_OMAP3ISP_HIST_CFG: Set histogram module configuration
     41  * VIDIOC_OMAP3ISP_AF_CFG: Set auto-focus module configuration
     42  * VIDIOC_OMAP3ISP_STAT_REQ: Read statistics (AEWB/AF/histogram) data
     43  * VIDIOC_OMAP3ISP_STAT_EN: Enable/disable a statistics module
     44  */
     45 
     46 #define VIDIOC_OMAP3ISP_CCDC_CFG \
     47 	_IOWR('V', BASE_VIDIOC_PRIVATE + 1, struct omap3isp_ccdc_update_config)
     48 #define VIDIOC_OMAP3ISP_PRV_CFG \
     49 	_IOWR('V', BASE_VIDIOC_PRIVATE + 2, struct omap3isp_prev_update_config)
     50 #define VIDIOC_OMAP3ISP_AEWB_CFG \
     51 	_IOWR('V', BASE_VIDIOC_PRIVATE + 3, struct omap3isp_h3a_aewb_config)
     52 #define VIDIOC_OMAP3ISP_HIST_CFG \
     53 	_IOWR('V', BASE_VIDIOC_PRIVATE + 4, struct omap3isp_hist_config)
     54 #define VIDIOC_OMAP3ISP_AF_CFG \
     55 	_IOWR('V', BASE_VIDIOC_PRIVATE + 5, struct omap3isp_h3a_af_config)
     56 #define VIDIOC_OMAP3ISP_STAT_REQ \
     57 	_IOWR('V', BASE_VIDIOC_PRIVATE + 6, struct omap3isp_stat_data)
     58 #define VIDIOC_OMAP3ISP_STAT_REQ_TIME32 \
     59 	_IOWR('V', BASE_VIDIOC_PRIVATE + 6, struct omap3isp_stat_data_time32)
     60 #define VIDIOC_OMAP3ISP_STAT_EN \
     61 	_IOWR('V', BASE_VIDIOC_PRIVATE + 7, unsigned long)
     62 
     63 /*
     64  * Events
     65  *
     66  * V4L2_EVENT_OMAP3ISP_AEWB: AEWB statistics data ready
     67  * V4L2_EVENT_OMAP3ISP_AF: AF statistics data ready
     68  * V4L2_EVENT_OMAP3ISP_HIST: Histogram statistics data ready
     69  */
     70 
     71 #define V4L2_EVENT_OMAP3ISP_CLASS	(V4L2_EVENT_PRIVATE_START | 0x100)
     72 #define V4L2_EVENT_OMAP3ISP_AEWB	(V4L2_EVENT_OMAP3ISP_CLASS | 0x1)
     73 #define V4L2_EVENT_OMAP3ISP_AF		(V4L2_EVENT_OMAP3ISP_CLASS | 0x2)
     74 #define V4L2_EVENT_OMAP3ISP_HIST	(V4L2_EVENT_OMAP3ISP_CLASS | 0x3)
     75 
     76 struct omap3isp_stat_event_status {
     77 	__u32 frame_number;
     78 	__u16 config_counter;
     79 	__u8 buf_err;
     80 };
     81 
     82 /* AE/AWB related structures and flags*/
     83 
     84 /* H3A Range Constants */
     85 #define OMAP3ISP_AEWB_MAX_SATURATION_LIM	1023
     86 #define OMAP3ISP_AEWB_MIN_WIN_H			2
     87 #define OMAP3ISP_AEWB_MAX_WIN_H			256
     88 #define OMAP3ISP_AEWB_MIN_WIN_W			6
     89 #define OMAP3ISP_AEWB_MAX_WIN_W			256
     90 #define OMAP3ISP_AEWB_MIN_WINVC			1
     91 #define OMAP3ISP_AEWB_MIN_WINHC			1
     92 #define OMAP3ISP_AEWB_MAX_WINVC			128
     93 #define OMAP3ISP_AEWB_MAX_WINHC			36
     94 #define OMAP3ISP_AEWB_MAX_WINSTART		4095
     95 #define OMAP3ISP_AEWB_MIN_SUB_INC		2
     96 #define OMAP3ISP_AEWB_MAX_SUB_INC		32
     97 #define OMAP3ISP_AEWB_MAX_BUF_SIZE		83600
     98 
     99 #define OMAP3ISP_AF_IIRSH_MIN			0
    100 #define OMAP3ISP_AF_IIRSH_MAX			4095
    101 #define OMAP3ISP_AF_PAXEL_HORIZONTAL_COUNT_MIN	1
    102 #define OMAP3ISP_AF_PAXEL_HORIZONTAL_COUNT_MAX	36
    103 #define OMAP3ISP_AF_PAXEL_VERTICAL_COUNT_MIN	1
    104 #define OMAP3ISP_AF_PAXEL_VERTICAL_COUNT_MAX	128
    105 #define OMAP3ISP_AF_PAXEL_INCREMENT_MIN		2
    106 #define OMAP3ISP_AF_PAXEL_INCREMENT_MAX		32
    107 #define OMAP3ISP_AF_PAXEL_HEIGHT_MIN		2
    108 #define OMAP3ISP_AF_PAXEL_HEIGHT_MAX		256
    109 #define OMAP3ISP_AF_PAXEL_WIDTH_MIN		16
    110 #define OMAP3ISP_AF_PAXEL_WIDTH_MAX		256
    111 #define OMAP3ISP_AF_PAXEL_HZSTART_MIN		1
    112 #define OMAP3ISP_AF_PAXEL_HZSTART_MAX		4095
    113 #define OMAP3ISP_AF_PAXEL_VTSTART_MIN		0
    114 #define OMAP3ISP_AF_PAXEL_VTSTART_MAX		4095
    115 #define OMAP3ISP_AF_THRESHOLD_MAX		255
    116 #define OMAP3ISP_AF_COEF_MAX			4095
    117 #define OMAP3ISP_AF_PAXEL_SIZE			48
    118 #define OMAP3ISP_AF_MAX_BUF_SIZE		221184
    119 
    120 /**
    121  * struct omap3isp_h3a_aewb_config - AE AWB configuration reset values
    122  * saturation_limit: Saturation limit.
    123  * @win_height: Window Height. Range 2 - 256, even values only.
    124  * @win_width: Window Width. Range 6 - 256, even values only.
    125  * @ver_win_count: Vertical Window Count. Range 1 - 128.
    126  * @hor_win_count: Horizontal Window Count. Range 1 - 36.
    127  * @ver_win_start: Vertical Window Start. Range 0 - 4095.
    128  * @hor_win_start: Horizontal Window Start. Range 0 - 4095.
    129  * @blk_ver_win_start: Black Vertical Windows Start. Range 0 - 4095.
    130  * @blk_win_height: Black Window Height. Range 2 - 256, even values only.
    131  * @subsample_ver_inc: Subsample Vertical points increment Range 2 - 32, even
    132  *                     values only.
    133  * @subsample_hor_inc: Subsample Horizontal points increment Range 2 - 32, even
    134  *                     values only.
    135  * @alaw_enable: AEW ALAW EN flag.
    136  */
    137 struct omap3isp_h3a_aewb_config {
    138 	/*
    139 	 * Common fields.
    140 	 * They should be the first ones and must be in the same order as in
    141 	 * ispstat_generic_config struct.
    142 	 */
    143 	__u32 buf_size;
    144 	__u16 config_counter;
    145 
    146 	/* Private fields */
    147 	__u16 saturation_limit;
    148 	__u16 win_height;
    149 	__u16 win_width;
    150 	__u16 ver_win_count;
    151 	__u16 hor_win_count;
    152 	__u16 ver_win_start;
    153 	__u16 hor_win_start;
    154 	__u16 blk_ver_win_start;
    155 	__u16 blk_win_height;
    156 	__u16 subsample_ver_inc;
    157 	__u16 subsample_hor_inc;
    158 	__u8 alaw_enable;
    159 };
    160 
    161 /**
    162  * struct omap3isp_stat_data - Statistic data sent to or received from user
    163  * @ts: Timestamp of returned framestats.
    164  * @buf: Pointer to pass to user.
    165  * @buf_size: Size of buffer.
    166  * @frame_number: Frame number of requested stats.
    167  * @cur_frame: Current frame number being processed.
    168  * @config_counter: Number of the configuration associated with the data.
    169  */
    170 struct omap3isp_stat_data {
    171 	struct timeval ts;
    172 	void *buf;
    173 	__struct_group(/* no tag */, frame, /* no attrs */,
    174 		__u32 buf_size;
    175 		__u16 frame_number;
    176 		__u16 cur_frame;
    177 		__u16 config_counter;
    178 	);
    179 };
    180 
    181 
    182 /* Histogram related structs */
    183 
    184 /* Flags for number of bins */
    185 #define OMAP3ISP_HIST_BINS_32		0
    186 #define OMAP3ISP_HIST_BINS_64		1
    187 #define OMAP3ISP_HIST_BINS_128		2
    188 #define OMAP3ISP_HIST_BINS_256		3
    189 
    190 /* Number of bins * 4 colors * 4-bytes word */
    191 #define OMAP3ISP_HIST_MEM_SIZE_BINS(n)	((1 << ((n)+5))*4*4)
    192 
    193 #define OMAP3ISP_HIST_MEM_SIZE		1024
    194 #define OMAP3ISP_HIST_MIN_REGIONS	1
    195 #define OMAP3ISP_HIST_MAX_REGIONS	4
    196 #define OMAP3ISP_HIST_MAX_WB_GAIN	255
    197 #define OMAP3ISP_HIST_MIN_WB_GAIN	0
    198 #define OMAP3ISP_HIST_MAX_BIT_WIDTH	14
    199 #define OMAP3ISP_HIST_MIN_BIT_WIDTH	8
    200 #define OMAP3ISP_HIST_MAX_WG		4
    201 #define OMAP3ISP_HIST_MAX_BUF_SIZE	4096
    202 
    203 /* Source */
    204 #define OMAP3ISP_HIST_SOURCE_CCDC	0
    205 #define OMAP3ISP_HIST_SOURCE_MEM	1
    206 
    207 /* CFA pattern */
    208 #define OMAP3ISP_HIST_CFA_BAYER		0
    209 #define OMAP3ISP_HIST_CFA_FOVEONX3	1
    210 
    211 struct omap3isp_hist_region {
    212 	__u16 h_start;
    213 	__u16 h_end;
    214 	__u16 v_start;
    215 	__u16 v_end;
    216 };
    217 
    218 struct omap3isp_hist_config {
    219 	/*
    220 	 * Common fields.
    221 	 * They should be the first ones and must be in the same order as in
    222 	 * ispstat_generic_config struct.
    223 	 */
    224 	__u32 buf_size;
    225 	__u16 config_counter;
    226 
    227 	__u8 num_acc_frames;	/* Num of image frames to be processed and
    228 				   accumulated for each histogram frame */
    229 	__u16 hist_bins;	/* number of bins: 32, 64, 128, or 256 */
    230 	__u8 cfa;		/* BAYER or FOVEON X3 */
    231 	__u8 wg[OMAP3ISP_HIST_MAX_WG];	/* White Balance Gain */
    232 	__u8 num_regions;	/* number of regions to be configured */
    233 	struct omap3isp_hist_region region[OMAP3ISP_HIST_MAX_REGIONS];
    234 };
    235 
    236 /* Auto Focus related structs */
    237 
    238 #define OMAP3ISP_AF_NUM_COEF		11
    239 
    240 enum omap3isp_h3a_af_fvmode {
    241 	OMAP3ISP_AF_MODE_SUMMED = 0,
    242 	OMAP3ISP_AF_MODE_PEAK = 1
    243 };
    244 
    245 /* Red, Green, and blue pixel location in the AF windows */
    246 enum omap3isp_h3a_af_rgbpos {
    247 	OMAP3ISP_AF_GR_GB_BAYER = 0,	/* GR and GB as Bayer pattern */
    248 	OMAP3ISP_AF_RG_GB_BAYER = 1,	/* RG and GB as Bayer pattern */
    249 	OMAP3ISP_AF_GR_BG_BAYER = 2,	/* GR and BG as Bayer pattern */
    250 	OMAP3ISP_AF_RG_BG_BAYER = 3,	/* RG and BG as Bayer pattern */
    251 	OMAP3ISP_AF_GG_RB_CUSTOM = 4,	/* GG and RB as custom pattern */
    252 	OMAP3ISP_AF_RB_GG_CUSTOM = 5	/* RB and GG as custom pattern */
    253 };
    254 
    255 /* Contains the information regarding the Horizontal Median Filter */
    256 struct omap3isp_h3a_af_hmf {
    257 	__u8 enable;	/* Status of Horizontal Median Filter */
    258 	__u8 threshold;	/* Threshold Value for Horizontal Median Filter */
    259 };
    260 
    261 /* Contains the information regarding the IIR Filters */
    262 struct omap3isp_h3a_af_iir {
    263 	__u16 h_start;			/* IIR horizontal start */
    264 	__u16 coeff_set0[OMAP3ISP_AF_NUM_COEF];	/* Filter coefficient, set 0 */
    265 	__u16 coeff_set1[OMAP3ISP_AF_NUM_COEF];	/* Filter coefficient, set 1 */
    266 };
    267 
    268 /* Contains the information regarding the Paxels Structure in AF Engine */
    269 struct omap3isp_h3a_af_paxel {
    270 	__u16 h_start;	/* Horizontal Start Position */
    271 	__u16 v_start;	/* Vertical Start Position */
    272 	__u8 width;	/* Width of the Paxel */
    273 	__u8 height;	/* Height of the Paxel */
    274 	__u8 h_cnt;	/* Horizontal Count */
    275 	__u8 v_cnt;	/* vertical Count */
    276 	__u8 line_inc;	/* Line Increment */
    277 };
    278 
    279 /* Contains the parameters required for hardware set up of AF Engine */
    280 struct omap3isp_h3a_af_config {
    281 	/*
    282 	 * Common fields.
    283 	 * They should be the first ones and must be in the same order as in
    284 	 * ispstat_generic_config struct.
    285 	 */
    286 	__u32 buf_size;
    287 	__u16 config_counter;
    288 
    289 	struct omap3isp_h3a_af_hmf hmf;		/* HMF configurations */
    290 	struct omap3isp_h3a_af_iir iir;		/* IIR filter configurations */
    291 	struct omap3isp_h3a_af_paxel paxel;	/* Paxel parameters */
    292 	enum omap3isp_h3a_af_rgbpos rgb_pos;	/* RGB Positions */
    293 	enum omap3isp_h3a_af_fvmode fvmode;	/* Accumulator mode */
    294 	__u8 alaw_enable;			/* AF ALAW status */
    295 };
    296 
    297 /* ISP CCDC structs */
    298 
    299 /* Abstraction layer CCDC configurations */
    300 #define OMAP3ISP_CCDC_ALAW		(1 << 0)
    301 #define OMAP3ISP_CCDC_LPF		(1 << 1)
    302 #define OMAP3ISP_CCDC_BLCLAMP		(1 << 2)
    303 #define OMAP3ISP_CCDC_BCOMP		(1 << 3)
    304 #define OMAP3ISP_CCDC_FPC		(1 << 4)
    305 #define OMAP3ISP_CCDC_CULL		(1 << 5)
    306 #define OMAP3ISP_CCDC_CONFIG_LSC	(1 << 7)
    307 #define OMAP3ISP_CCDC_TBL_LSC		(1 << 8)
    308 
    309 #define OMAP3ISP_RGB_MAX		3
    310 
    311 /* Enumeration constants for Alaw input width */
    312 enum omap3isp_alaw_ipwidth {
    313 	OMAP3ISP_ALAW_BIT12_3 = 0x3,
    314 	OMAP3ISP_ALAW_BIT11_2 = 0x4,
    315 	OMAP3ISP_ALAW_BIT10_1 = 0x5,
    316 	OMAP3ISP_ALAW_BIT9_0 = 0x6
    317 };
    318 
    319 /**
    320  * struct omap3isp_ccdc_lsc_config - LSC configuration
    321  * @offset: Table Offset of the gain table.
    322  * @gain_mode_n: Vertical dimension of a paxel in LSC configuration.
    323  * @gain_mode_m: Horizontal dimension of a paxel in LSC configuration.
    324  * @gain_format: Gain table format.
    325  * @fmtsph: Start pixel horizontal from start of the HS sync pulse.
    326  * @fmtlnh: Number of pixels in horizontal direction to use for the data
    327  *          reformatter.
    328  * @fmtslv: Start line from start of VS sync pulse for the data reformatter.
    329  * @fmtlnv: Number of lines in vertical direction for the data reformatter.
    330  * @initial_x: X position, in pixels, of the first active pixel in reference
    331  *             to the first active paxel. Must be an even number.
    332  * @initial_y: Y position, in pixels, of the first active pixel in reference
    333  *             to the first active paxel. Must be an even number.
    334  * @size: Size of LSC gain table. Filled when loaded from userspace.
    335  */
    336 struct omap3isp_ccdc_lsc_config {
    337 	__u16 offset;
    338 	__u8 gain_mode_n;
    339 	__u8 gain_mode_m;
    340 	__u8 gain_format;
    341 	__u16 fmtsph;
    342 	__u16 fmtlnh;
    343 	__u16 fmtslv;
    344 	__u16 fmtlnv;
    345 	__u8 initial_x;
    346 	__u8 initial_y;
    347 	__u32 size;
    348 };
    349 
    350 /**
    351  * struct omap3isp_ccdc_bclamp - Optical & Digital black clamp subtract
    352  * @obgain: Optical black average gain.
    353  * @obstpixel: Start Pixel w.r.t. HS pulse in Optical black sample.
    354  * @oblines: Optical Black Sample lines.
    355  * @oblen: Optical Black Sample Length.
    356  * @dcsubval: Digital Black Clamp subtract value.
    357  */
    358 struct omap3isp_ccdc_bclamp {
    359 	__u8 obgain;
    360 	__u8 obstpixel;
    361 	__u8 oblines;
    362 	__u8 oblen;
    363 	__u16 dcsubval;
    364 };
    365 
    366 /**
    367  * struct omap3isp_ccdc_fpc - Faulty Pixels Correction
    368  * @fpnum: Number of faulty pixels to be corrected in the frame.
    369  * @fpcaddr: Memory address of the FPC Table
    370  */
    371 struct omap3isp_ccdc_fpc {
    372 	__u16 fpnum;
    373 	__u32 fpcaddr;
    374 };
    375 
    376 /**
    377  * struct omap3isp_ccdc_blcomp - Black Level Compensation parameters
    378  * @b_mg: B/Mg pixels. 2's complement. -128 to +127.
    379  * @gb_g: Gb/G pixels. 2's complement. -128 to +127.
    380  * @gr_cy: Gr/Cy pixels. 2's complement. -128 to +127.
    381  * @r_ye: R/Ye pixels. 2's complement. -128 to +127.
    382  */
    383 struct omap3isp_ccdc_blcomp {
    384 	__u8 b_mg;
    385 	__u8 gb_g;
    386 	__u8 gr_cy;
    387 	__u8 r_ye;
    388 };
    389 
    390 /**
    391  * omap3isp_ccdc_culling - Culling parameters
    392  * @v_pattern: Vertical culling pattern.
    393  * @h_odd: Horizontal Culling pattern for odd lines.
    394  * @h_even: Horizontal Culling pattern for even lines.
    395  */
    396 struct omap3isp_ccdc_culling {
    397 	__u8 v_pattern;
    398 	__u16 h_odd;
    399 	__u16 h_even;
    400 };
    401 
    402 /**
    403  * omap3isp_ccdc_update_config - CCDC configuration
    404  * @update: Specifies which CCDC registers should be updated.
    405  * @flag: Specifies which CCDC functions should be enabled.
    406  * @alawip: Enable/Disable A-Law compression.
    407  * @bclamp: Black clamp control register.
    408  * @blcomp: Black level compensation value for RGrGbB Pixels. 2's complement.
    409  * @fpc: Number of faulty pixels corrected in the frame, address of FPC table.
    410  * @cull: Cull control register.
    411  * @lsc: Pointer to LSC gain table.
    412  */
    413 struct omap3isp_ccdc_update_config {
    414 	__u16 update;
    415 	__u16 flag;
    416 	enum omap3isp_alaw_ipwidth alawip;
    417 	struct omap3isp_ccdc_bclamp *bclamp;
    418 	struct omap3isp_ccdc_blcomp *blcomp;
    419 	struct omap3isp_ccdc_fpc *fpc;
    420 	struct omap3isp_ccdc_lsc_config *lsc_cfg;
    421 	struct omap3isp_ccdc_culling *cull;
    422 	__u8 *lsc;
    423 };
    424 
    425 /* Preview configurations */
    426 #define OMAP3ISP_PREV_LUMAENH		(1 << 0)
    427 #define OMAP3ISP_PREV_INVALAW		(1 << 1)
    428 #define OMAP3ISP_PREV_HRZ_MED		(1 << 2)
    429 #define OMAP3ISP_PREV_CFA		(1 << 3)
    430 #define OMAP3ISP_PREV_CHROMA_SUPP	(1 << 4)
    431 #define OMAP3ISP_PREV_WB		(1 << 5)
    432 #define OMAP3ISP_PREV_BLKADJ		(1 << 6)
    433 #define OMAP3ISP_PREV_RGB2RGB		(1 << 7)
    434 #define OMAP3ISP_PREV_COLOR_CONV	(1 << 8)
    435 #define OMAP3ISP_PREV_YC_LIMIT		(1 << 9)
    436 #define OMAP3ISP_PREV_DEFECT_COR	(1 << 10)
    437 /* Bit 11 was OMAP3ISP_PREV_GAMMABYPASS, now merged with OMAP3ISP_PREV_GAMMA */
    438 #define OMAP3ISP_PREV_DRK_FRM_CAPTURE	(1 << 12)
    439 #define OMAP3ISP_PREV_DRK_FRM_SUBTRACT	(1 << 13)
    440 #define OMAP3ISP_PREV_LENS_SHADING	(1 << 14)
    441 #define OMAP3ISP_PREV_NF		(1 << 15)
    442 #define OMAP3ISP_PREV_GAMMA		(1 << 16)
    443 
    444 #define OMAP3ISP_PREV_NF_TBL_SIZE	64
    445 #define OMAP3ISP_PREV_CFA_TBL_SIZE	576
    446 #define OMAP3ISP_PREV_CFA_BLK_SIZE	(OMAP3ISP_PREV_CFA_TBL_SIZE / 4)
    447 #define OMAP3ISP_PREV_GAMMA_TBL_SIZE	1024
    448 #define OMAP3ISP_PREV_YENH_TBL_SIZE	128
    449 
    450 #define OMAP3ISP_PREV_DETECT_CORRECT_CHANNELS	4
    451 
    452 /**
    453  * struct omap3isp_prev_hmed - Horizontal Median Filter
    454  * @odddist: Distance between consecutive pixels of same color in the odd line.
    455  * @evendist: Distance between consecutive pixels of same color in the even
    456  *            line.
    457  * @thres: Horizontal median filter threshold.
    458  */
    459 struct omap3isp_prev_hmed {
    460 	__u8 odddist;
    461 	__u8 evendist;
    462 	__u8 thres;
    463 };
    464 
    465 /*
    466  * Enumeration for CFA Formats supported by preview
    467  */
    468 enum omap3isp_cfa_fmt {
    469 	OMAP3ISP_CFAFMT_BAYER,
    470 	OMAP3ISP_CFAFMT_SONYVGA,
    471 	OMAP3ISP_CFAFMT_RGBFOVEON,
    472 	OMAP3ISP_CFAFMT_DNSPL,
    473 	OMAP3ISP_CFAFMT_HONEYCOMB,
    474 	OMAP3ISP_CFAFMT_RRGGBBFOVEON
    475 };
    476 
    477 /**
    478  * struct omap3isp_prev_cfa - CFA Interpolation
    479  * @format: CFA Format Enum value supported by preview.
    480  * @gradthrs_vert: CFA Gradient Threshold - Vertical.
    481  * @gradthrs_horz: CFA Gradient Threshold - Horizontal.
    482  * @table: Pointer to the CFA table.
    483  */
    484 struct omap3isp_prev_cfa {
    485 	enum omap3isp_cfa_fmt format;
    486 	__u8 gradthrs_vert;
    487 	__u8 gradthrs_horz;
    488 	__u32 table[4][OMAP3ISP_PREV_CFA_BLK_SIZE];
    489 };
    490 
    491 /**
    492  * struct omap3isp_prev_csup - Chrominance Suppression
    493  * @gain: Gain.
    494  * @thres: Threshold.
    495  * @hypf_en: Flag to enable/disable the High Pass Filter.
    496  */
    497 struct omap3isp_prev_csup {
    498 	__u8 gain;
    499 	__u8 thres;
    500 	__u8 hypf_en;
    501 };
    502 
    503 /**
    504  * struct omap3isp_prev_wbal - White Balance
    505  * @dgain: Digital gain (U10Q8).
    506  * @coef3: White balance gain - COEF 3 (U8Q5).
    507  * @coef2: White balance gain - COEF 2 (U8Q5).
    508  * @coef1: White balance gain - COEF 1 (U8Q5).
    509  * @coef0: White balance gain - COEF 0 (U8Q5).
    510  */
    511 struct omap3isp_prev_wbal {
    512 	__u16 dgain;
    513 	__u8 coef3;
    514 	__u8 coef2;
    515 	__u8 coef1;
    516 	__u8 coef0;
    517 };
    518 
    519 /**
    520  * struct omap3isp_prev_blkadj - Black Level Adjustment
    521  * @red: Black level offset adjustment for Red in 2's complement format
    522  * @green: Black level offset adjustment for Green in 2's complement format
    523  * @blue: Black level offset adjustment for Blue in 2's complement format
    524  */
    525 struct omap3isp_prev_blkadj {
    526 	/*Black level offset adjustment for Red in 2's complement format */
    527 	__u8 red;
    528 	/*Black level offset adjustment for Green in 2's complement format */
    529 	__u8 green;
    530 	/* Black level offset adjustment for Blue in 2's complement format */
    531 	__u8 blue;
    532 };
    533 
    534 /**
    535  * struct omap3isp_prev_rgbtorgb - RGB to RGB Blending
    536  * @matrix: Blending values(S12Q8 format)
    537  *              [RR] [GR] [BR]
    538  *              [RG] [GG] [BG]
    539  *              [RB] [GB] [BB]
    540  * @offset: Blending offset value for R,G,B in 2's complement integer format.
    541  */
    542 struct omap3isp_prev_rgbtorgb {
    543 	__u16 matrix[OMAP3ISP_RGB_MAX][OMAP3ISP_RGB_MAX];
    544 	__u16 offset[OMAP3ISP_RGB_MAX];
    545 };
    546 
    547 /**
    548  * struct omap3isp_prev_csc - Color Space Conversion from RGB-YCbYCr
    549  * @matrix: Color space conversion coefficients(S10Q8)
    550  *              [CSCRY]  [CSCGY]  [CSCBY]
    551  *              [CSCRCB] [CSCGCB] [CSCBCB]
    552  *              [CSCRCR] [CSCGCR] [CSCBCR]
    553  * @offset: CSC offset values for Y offset, CB offset and CR offset respectively
    554  */
    555 struct omap3isp_prev_csc {
    556 	__u16 matrix[OMAP3ISP_RGB_MAX][OMAP3ISP_RGB_MAX];
    557 	__s16 offset[OMAP3ISP_RGB_MAX];
    558 };
    559 
    560 /**
    561  * struct omap3isp_prev_yclimit - Y, C Value Limit
    562  * @minC: Minimum C value
    563  * @maxC: Maximum C value
    564  * @minY: Minimum Y value
    565  * @maxY: Maximum Y value
    566  */
    567 struct omap3isp_prev_yclimit {
    568 	__u8 minC;
    569 	__u8 maxC;
    570 	__u8 minY;
    571 	__u8 maxY;
    572 };
    573 
    574 /**
    575  * struct omap3isp_prev_dcor - Defect correction
    576  * @couplet_mode_en: Flag to enable or disable the couplet dc Correction in NF
    577  * @detect_correct: Thresholds for correction bit 0:10 detect 16:25 correct
    578  */
    579 struct omap3isp_prev_dcor {
    580 	__u8 couplet_mode_en;
    581 	__u32 detect_correct[OMAP3ISP_PREV_DETECT_CORRECT_CHANNELS];
    582 };
    583 
    584 /**
    585  * struct omap3isp_prev_nf - Noise Filter
    586  * @spread: Spread value to be used in Noise Filter
    587  * @table: Pointer to the Noise Filter table
    588  */
    589 struct omap3isp_prev_nf {
    590 	__u8 spread;
    591 	__u32 table[OMAP3ISP_PREV_NF_TBL_SIZE];
    592 };
    593 
    594 /**
    595  * struct omap3isp_prev_gtables - Gamma correction tables
    596  * @red: Array for red gamma table.
    597  * @green: Array for green gamma table.
    598  * @blue: Array for blue gamma table.
    599  */
    600 struct omap3isp_prev_gtables {
    601 	__u32 red[OMAP3ISP_PREV_GAMMA_TBL_SIZE];
    602 	__u32 green[OMAP3ISP_PREV_GAMMA_TBL_SIZE];
    603 	__u32 blue[OMAP3ISP_PREV_GAMMA_TBL_SIZE];
    604 };
    605 
    606 /**
    607  * struct omap3isp_prev_luma - Luma enhancement
    608  * @table: Array for luma enhancement table.
    609  */
    610 struct omap3isp_prev_luma {
    611 	__u32 table[OMAP3ISP_PREV_YENH_TBL_SIZE];
    612 };
    613 
    614 /**
    615  * struct omap3isp_prev_update_config - Preview engine configuration (user)
    616  * @update: Specifies which ISP Preview registers should be updated.
    617  * @flag: Specifies which ISP Preview functions should be enabled.
    618  * @shading_shift: 3bit value of shift used in shading compensation.
    619  * @luma: Pointer to luma enhancement structure.
    620  * @hmed: Pointer to structure containing the odd and even distance.
    621  *        between the pixels in the image along with the filter threshold.
    622  * @cfa: Pointer to structure containing the CFA interpolation table, CFA.
    623  *       format in the image, vertical and horizontal gradient threshold.
    624  * @csup: Pointer to Structure for Chrominance Suppression coefficients.
    625  * @wbal: Pointer to structure for White Balance.
    626  * @blkadj: Pointer to structure for Black Adjustment.
    627  * @rgb2rgb: Pointer to structure for RGB to RGB Blending.
    628  * @csc: Pointer to structure for Color Space Conversion from RGB-YCbYCr.
    629  * @yclimit: Pointer to structure for Y, C Value Limit.
    630  * @dcor: Pointer to structure for defect correction.
    631  * @nf: Pointer to structure for Noise Filter
    632  * @gamma: Pointer to gamma structure.
    633  */
    634 struct omap3isp_prev_update_config {
    635 	__u32 update;
    636 	__u32 flag;
    637 	__u32 shading_shift;
    638 	struct omap3isp_prev_luma *luma;
    639 	struct omap3isp_prev_hmed *hmed;
    640 	struct omap3isp_prev_cfa *cfa;
    641 	struct omap3isp_prev_csup *csup;
    642 	struct omap3isp_prev_wbal *wbal;
    643 	struct omap3isp_prev_blkadj *blkadj;
    644 	struct omap3isp_prev_rgbtorgb *rgb2rgb;
    645 	struct omap3isp_prev_csc *csc;
    646 	struct omap3isp_prev_yclimit *yclimit;
    647 	struct omap3isp_prev_dcor *dcor;
    648 	struct omap3isp_prev_nf *nf;
    649 	struct omap3isp_prev_gtables *gamma;
    650 };
    651 
    652 #endif	/* OMAP3_ISP_USER_H */