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