include/linux/omap3isp.h

   1 /*
   2  * omap3isp.h
   3  *
   4  * TI OMAP3 ISP - User-space API
   5  *
   6  * Copyright (C) 2010 Nokia Corporation
   7  * Copyright (C) 2009 Texas Instruments, Inc.
   8  *
   9  * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
  10  *           Sakari Ailus <sakari.ailus@iki.fi>
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License version 2 as
  14  * published by the Free Software Foundation.
  15  *
  16  * This program is distributed in the hope that it will be useful, but
  17  * WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19  * General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  24  * 02110-1301 USA
  25  */
  26
  27 #ifndef OMAP3_ISP_USER_H
  28 #define OMAP3_ISP_USER_H
  29
  30 #include <linux/types.h>
  31
  32 /*
  33  * Private IOCTLs
  34  *
  35  * VIDIOC_OMAP3ISP_CCDC_CFG: Set CCDC configuration
  36  * VIDIOC_OMAP3ISP_PRV_CFG: Set preview engine configuration
  37  * VIDIOC_OMAP3ISP_AEWB_CFG: Set AEWB module configuration
  38  * VIDIOC_OMAP3ISP_HIST_CFG: Set histogram module configuration
  39  * VIDIOC_OMAP3ISP_AF_CFG: Set auto-focus module configuration
  40  * VIDIOC_OMAP3ISP_STAT_REQ: Read statistics (AEWB/AF/histogram) data
  41  * VIDIOC_OMAP3ISP_STAT_EN: Enable/disable a statistics module
  42  */
  43
  44 #define VIDIOC_OMAP3ISP_CCDC_CFG \
  45         _IOWR('V', BASE_VIDIOC_PRIVATE + 1, struct omap3isp_ccdc_update_config)
  46 #define VIDIOC_OMAP3ISP_PRV_CFG \
  47         _IOWR('V', BASE_VIDIOC_PRIVATE + 2, struct omap3isp_prev_update_config)
  48 #define VIDIOC_OMAP3ISP_AEWB_CFG \
  49         _IOWR('V', BASE_VIDIOC_PRIVATE + 3, struct omap3isp_h3a_aewb_config)
  50 #define VIDIOC_OMAP3ISP_HIST_CFG \
  51         _IOWR('V', BASE_VIDIOC_PRIVATE + 4, struct omap3isp_hist_config)
  52 #define VIDIOC_OMAP3ISP_AF_CFG \
  53         _IOWR('V', BASE_VIDIOC_PRIVATE + 5, struct omap3isp_h3a_af_config)
  54 #define VIDIOC_OMAP3ISP_STAT_REQ \
  55         _IOWR('V', BASE_VIDIOC_PRIVATE + 6, struct omap3isp_stat_data)
  56 #define VIDIOC_OMAP3ISP_STAT_EN \
  57         _IOWR('V', BASE_VIDIOC_PRIVATE + 7, unsigned long)
  58
  59 /*
  60  * Events
  61  *
  62  * V4L2_EVENT_OMAP3ISP_AEWB: AEWB statistics data ready
  63  * V4L2_EVENT_OMAP3ISP_AF: AF statistics data ready
  64  * V4L2_EVENT_OMAP3ISP_HIST: Histogram statistics data ready
  65  * V4L2_EVENT_OMAP3ISP_HS_VS: Horizontal/vertical synchronization detected
  66  */
  67
  68 #define V4L2_EVENT_OMAP3ISP_CLASS       (V4L2_EVENT_PRIVATE_START | 0x100)
  69 #define V4L2_EVENT_OMAP3ISP_AEWB        (V4L2_EVENT_OMAP3ISP_CLASS | 0x1)
  70 #define V4L2_EVENT_OMAP3ISP_AF          (V4L2_EVENT_OMAP3ISP_CLASS | 0x2)
  71 #define V4L2_EVENT_OMAP3ISP_HIST        (V4L2_EVENT_OMAP3ISP_CLASS | 0x3)
  72 #define V4L2_EVENT_OMAP3ISP_HS_VS       (V4L2_EVENT_OMAP3ISP_CLASS | 0x4)
  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; /* Threshhold 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 #define OMAP3ISP_PREV_GAMMABYPASS       (1 << 11)
 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_GAMMA_TBL_SIZE    1024
 442 #define OMAP3ISP_PREV_YENH_TBL_SIZE     128
 443
 444 #define OMAP3ISP_PREV_DETECT_CORRECT_CHANNELS   4
 445
 446 /**
 447  * struct omap3isp_prev_hmed - Horizontal Median Filter
 448  * @odddist: Distance between consecutive pixels of same color in the odd line.
 449  * @evendist: Distance between consecutive pixels of same color in the even
 450  *            line.
 451  * @thres: Horizontal median filter threshold.
 452  */
 453 struct omap3isp_prev_hmed {
 454         __u8 odddist;
 455         __u8 evendist;
 456         __u8 thres;
 457 };
 458
 459 /*
 460  * Enumeration for CFA Formats supported by preview
 461  */
 462 enum omap3isp_cfa_fmt {
 463         OMAP3ISP_CFAFMT_BAYER,
 464         OMAP3ISP_CFAFMT_SONYVGA,
 465         OMAP3ISP_CFAFMT_RGBFOVEON,
 466         OMAP3ISP_CFAFMT_DNSPL,
 467         OMAP3ISP_CFAFMT_HONEYCOMB,
 468         OMAP3ISP_CFAFMT_RRGGBBFOVEON
 469 };
 470
 471 /**
 472  * struct omap3isp_prev_cfa - CFA Interpolation
 473  * @format: CFA Format Enum value supported by preview.
 474  * @gradthrs_vert: CFA Gradient Threshold - Vertical.
 475  * @gradthrs_horz: CFA Gradient Threshold - Horizontal.
 476  * @table: Pointer to the CFA table.
 477  */
 478 struct omap3isp_prev_cfa {
 479         enum omap3isp_cfa_fmt format;
 480         __u8 gradthrs_vert;
 481         __u8 gradthrs_horz;
 482         __u32 table[OMAP3ISP_PREV_CFA_TBL_SIZE];
 483 };
 484
 485 /**
 486  * struct omap3isp_prev_csup - Chrominance Suppression
 487  * @gain: Gain.
 488  * @thres: Threshold.
 489  * @hypf_en: Flag to enable/disable the High Pass Filter.
 490  */
 491 struct omap3isp_prev_csup {
 492         __u8 gain;
 493         __u8 thres;
 494         __u8 hypf_en;
 495 };
 496
 497 /**
 498  * struct omap3isp_prev_wbal - White Balance
 499  * @dgain: Digital gain (U10Q8).
 500  * @coef3: White balance gain - COEF 3 (U8Q5).
 501  * @coef2: White balance gain - COEF 2 (U8Q5).
 502  * @coef1: White balance gain - COEF 1 (U8Q5).
 503  * @coef0: White balance gain - COEF 0 (U8Q5).
 504  */
 505 struct omap3isp_prev_wbal {
 506         __u16 dgain;
 507         __u8 coef3;
 508         __u8 coef2;
 509         __u8 coef1;
 510         __u8 coef0;
 511 };
 512
 513 /**
 514  * struct omap3isp_prev_blkadj - Black Level Adjustment
 515  * @red: Black level offset adjustment for Red in 2's complement format
 516  * @green: Black level offset adjustment for Green in 2's complement format
 517  * @blue: Black level offset adjustment for Blue in 2's complement format
 518  */
 519 struct omap3isp_prev_blkadj {
 520         /*Black level offset adjustment for Red in 2's complement format */
 521         __u8 red;
 522         /*Black level offset adjustment for Green in 2's complement format */
 523         __u8 green;
 524         /* Black level offset adjustment for Blue in 2's complement format */
 525         __u8 blue;
 526 };
 527
 528 /**
 529  * struct omap3isp_prev_rgbtorgb - RGB to RGB Blending
 530  * @matrix: Blending values(S12Q8 format)
 531  *              [RR] [GR] [BR]
 532  *              [RG] [GG] [BG]
 533  *              [RB] [GB] [BB]
 534  * @offset: Blending offset value for R,G,B in 2's complement integer format.
 535  */
 536 struct omap3isp_prev_rgbtorgb {
 537         __u16 matrix[OMAP3ISP_RGB_MAX][OMAP3ISP_RGB_MAX];
 538         __u16 offset[OMAP3ISP_RGB_MAX];
 539 };
 540
 541 /**
 542  * struct omap3isp_prev_csc - Color Space Conversion from RGB-YCbYCr
 543  * @matrix: Color space conversion coefficients(S10Q8)
 544  *              [CSCRY]  [CSCGY]  [CSCBY]
 545  *              [CSCRCB] [CSCGCB] [CSCBCB]
 546  *              [CSCRCR] [CSCGCR] [CSCBCR]
 547  * @offset: CSC offset values for Y offset, CB offset and CR offset respectively
 548  */
 549 struct omap3isp_prev_csc {
 550         __u16 matrix[OMAP3ISP_RGB_MAX][OMAP3ISP_RGB_MAX];
 551         __s16 offset[OMAP3ISP_RGB_MAX];
 552 };
 553
 554 /**
 555  * struct omap3isp_prev_yclimit - Y, C Value Limit
 556  * @minC: Minimum C value
 557  * @maxC: Maximum C value
 558  * @minY: Minimum Y value
 559  * @maxY: Maximum Y value
 560  */
 561 struct omap3isp_prev_yclimit {
 562         __u8 minC;
 563         __u8 maxC;
 564         __u8 minY;
 565         __u8 maxY;
 566 };
 567
 568 /**
 569  * struct omap3isp_prev_dcor - Defect correction
 570  * @couplet_mode_en: Flag to enable or disable the couplet dc Correction in NF
 571  * @detect_correct: Thresholds for correction bit 0:10 detect 16:25 correct
 572  */
 573 struct omap3isp_prev_dcor {
 574         __u8 couplet_mode_en;
 575         __u32 detect_correct[OMAP3ISP_PREV_DETECT_CORRECT_CHANNELS];
 576 };
 577
 578 /**
 579  * struct omap3isp_prev_nf - Noise Filter
 580  * @spread: Spread value to be used in Noise Filter
 581  * @table: Pointer to the Noise Filter table
 582  */
 583 struct omap3isp_prev_nf {
 584         __u8 spread;
 585         __u32 table[OMAP3ISP_PREV_NF_TBL_SIZE];
 586 };
 587
 588 /**
 589  * struct omap3isp_prev_gtables - Gamma correction tables
 590  * @red: Array for red gamma table.
 591  * @green: Array for green gamma table.
 592  * @blue: Array for blue gamma table.
 593  */
 594 struct omap3isp_prev_gtables {
 595         __u32 red[OMAP3ISP_PREV_GAMMA_TBL_SIZE];
 596         __u32 green[OMAP3ISP_PREV_GAMMA_TBL_SIZE];
 597         __u32 blue[OMAP3ISP_PREV_GAMMA_TBL_SIZE];
 598 };
 599
 600 /**
 601  * struct omap3isp_prev_luma - Luma enhancement
 602  * @table: Array for luma enhancement table.
 603  */
 604 struct omap3isp_prev_luma {
 605         __u32 table[OMAP3ISP_PREV_YENH_TBL_SIZE];
 606 };
 607
 608 /**
 609  * struct omap3isp_prev_update_config - Preview engine configuration (user)
 610  * @update: Specifies which ISP Preview registers should be updated.
 611  * @flag: Specifies which ISP Preview functions should be enabled.
 612  * @shading_shift: 3bit value of shift used in shading compensation.
 613  * @luma: Pointer to luma enhancement structure.
 614  * @hmed: Pointer to structure containing the odd and even distance.
 615  *        between the pixels in the image along with the filter threshold.
 616  * @cfa: Pointer to structure containing the CFA interpolation table, CFA.
 617  *       format in the image, vertical and horizontal gradient threshold.
 618  * @csup: Pointer to Structure for Chrominance Suppression coefficients.
 619  * @wbal: Pointer to structure for White Balance.
 620  * @blkadj: Pointer to structure for Black Adjustment.
 621  * @rgb2rgb: Pointer to structure for RGB to RGB Blending.
 622  * @csc: Pointer to structure for Color Space Conversion from RGB-YCbYCr.
 623  * @yclimit: Pointer to structure for Y, C Value Limit.
 624  * @dcor: Pointer to structure for defect correction.
 625  * @nf: Pointer to structure for Noise Filter
 626  * @gamma: Pointer to gamma structure.
 627  */
 628 struct omap3isp_prev_update_config {
 629         __u32 update;
 630         __u32 flag;
 631         __u32 shading_shift;
 632         struct omap3isp_prev_luma __user *luma;
 633         struct omap3isp_prev_hmed __user *hmed;
 634         struct omap3isp_prev_cfa __user *cfa;
 635         struct omap3isp_prev_csup __user *csup;
 636         struct omap3isp_prev_wbal __user *wbal;
 637         struct omap3isp_prev_blkadj __user *blkadj;
 638         struct omap3isp_prev_rgbtorgb __user *rgb2rgb;
 639         struct omap3isp_prev_csc __user *csc;
 640         struct omap3isp_prev_yclimit __user *yclimit;
 641         struct omap3isp_prev_dcor __user *dcor;
 642         struct omap3isp_prev_nf __user *nf;
 643         struct omap3isp_prev_gtables __user *gamma;
 644 };
 645
 646 #endif  /* OMAP3_ISP_USER_H */