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
76struct 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 */
137struct 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 */
170struct omap3isp_stat_data {
171#ifdef __KERNEL__
172 struct {
173 __s64 tv_sec;
174 __s64 tv_usec;
175 } ts;
176#else
177 struct timeval ts;
178#endif
179 void __user *buf;
180 __struct_group(/* no tag */, frame, /* no attrs */,
181 __u32 buf_size;
182 __u16 frame_number;
183 __u16 cur_frame;
184 __u16 config_counter;
185 );
186};
187
188#ifdef __KERNEL__
189struct omap3isp_stat_data_time32 {
190 struct {
191 __s32 tv_sec;
192 __s32 tv_usec;
193 } ts;
194 __u32 buf;
195 __struct_group(/* no tag */, frame, /* no attrs */,
196 __u32 buf_size;
197 __u16 frame_number;
198 __u16 cur_frame;
199 __u16 config_counter;
200 );
201};
202#endif
203
204/* Histogram related structs */
205
206/* Flags for number of bins */
207#define OMAP3ISP_HIST_BINS_32 0
208#define OMAP3ISP_HIST_BINS_64 1
209#define OMAP3ISP_HIST_BINS_128 2
210#define OMAP3ISP_HIST_BINS_256 3
211
212/* Number of bins * 4 colors * 4-bytes word */
213#define OMAP3ISP_HIST_MEM_SIZE_BINS(n) ((1 << ((n)+5))*4*4)
214
215#define OMAP3ISP_HIST_MEM_SIZE 1024
216#define OMAP3ISP_HIST_MIN_REGIONS 1
217#define OMAP3ISP_HIST_MAX_REGIONS 4
218#define OMAP3ISP_HIST_MAX_WB_GAIN 255
219#define OMAP3ISP_HIST_MIN_WB_GAIN 0
220#define OMAP3ISP_HIST_MAX_BIT_WIDTH 14
221#define OMAP3ISP_HIST_MIN_BIT_WIDTH 8
222#define OMAP3ISP_HIST_MAX_WG 4
223#define OMAP3ISP_HIST_MAX_BUF_SIZE 4096
224
225/* Source */
226#define OMAP3ISP_HIST_SOURCE_CCDC 0
227#define OMAP3ISP_HIST_SOURCE_MEM 1
228
229/* CFA pattern */
230#define OMAP3ISP_HIST_CFA_BAYER 0
231#define OMAP3ISP_HIST_CFA_FOVEONX3 1
232
233struct omap3isp_hist_region {
234 __u16 h_start;
235 __u16 h_end;
236 __u16 v_start;
237 __u16 v_end;
238};
239
240struct omap3isp_hist_config {
241 /*
242 * Common fields.
243 * They should be the first ones and must be in the same order as in
244 * ispstat_generic_config struct.
245 */
246 __u32 buf_size;
247 __u16 config_counter;
248
249 __u8 num_acc_frames; /* Num of image frames to be processed and
250 accumulated for each histogram frame */
251 __u16 hist_bins; /* number of bins: 32, 64, 128, or 256 */
252 __u8 cfa; /* BAYER or FOVEON X3 */
253 __u8 wg[OMAP3ISP_HIST_MAX_WG]; /* White Balance Gain */
254 __u8 num_regions; /* number of regions to be configured */
255 struct omap3isp_hist_region region[OMAP3ISP_HIST_MAX_REGIONS];
256};
257
258/* Auto Focus related structs */
259
260#define OMAP3ISP_AF_NUM_COEF 11
261
262enum omap3isp_h3a_af_fvmode {
263 OMAP3ISP_AF_MODE_SUMMED = 0,
264 OMAP3ISP_AF_MODE_PEAK = 1
265};
266
267/* Red, Green, and blue pixel location in the AF windows */
268enum omap3isp_h3a_af_rgbpos {
269 OMAP3ISP_AF_GR_GB_BAYER = 0, /* GR and GB as Bayer pattern */
270 OMAP3ISP_AF_RG_GB_BAYER = 1, /* RG and GB as Bayer pattern */
271 OMAP3ISP_AF_GR_BG_BAYER = 2, /* GR and BG as Bayer pattern */
272 OMAP3ISP_AF_RG_BG_BAYER = 3, /* RG and BG as Bayer pattern */
273 OMAP3ISP_AF_GG_RB_CUSTOM = 4, /* GG and RB as custom pattern */
274 OMAP3ISP_AF_RB_GG_CUSTOM = 5 /* RB and GG as custom pattern */
275};
276
277/* Contains the information regarding the Horizontal Median Filter */
278struct omap3isp_h3a_af_hmf {
279 __u8 enable; /* Status of Horizontal Median Filter */
280 __u8 threshold; /* Threshold Value for Horizontal Median Filter */
281};
282
283/* Contains the information regarding the IIR Filters */
284struct omap3isp_h3a_af_iir {
285 __u16 h_start; /* IIR horizontal start */
286 __u16 coeff_set0[OMAP3ISP_AF_NUM_COEF]; /* Filter coefficient, set 0 */
287 __u16 coeff_set1[OMAP3ISP_AF_NUM_COEF]; /* Filter coefficient, set 1 */
288};
289
290/* Contains the information regarding the Paxels Structure in AF Engine */
291struct omap3isp_h3a_af_paxel {
292 __u16 h_start; /* Horizontal Start Position */
293 __u16 v_start; /* Vertical Start Position */
294 __u8 width; /* Width of the Paxel */
295 __u8 height; /* Height of the Paxel */
296 __u8 h_cnt; /* Horizontal Count */
297 __u8 v_cnt; /* vertical Count */
298 __u8 line_inc; /* Line Increment */
299};
300
301/* Contains the parameters required for hardware set up of AF Engine */
302struct omap3isp_h3a_af_config {
303 /*
304 * Common fields.
305 * They should be the first ones and must be in the same order as in
306 * ispstat_generic_config struct.
307 */
308 __u32 buf_size;
309 __u16 config_counter;
310
311 struct omap3isp_h3a_af_hmf hmf; /* HMF configurations */
312 struct omap3isp_h3a_af_iir iir; /* IIR filter configurations */
313 struct omap3isp_h3a_af_paxel paxel; /* Paxel parameters */
314 enum omap3isp_h3a_af_rgbpos rgb_pos; /* RGB Positions */
315 enum omap3isp_h3a_af_fvmode fvmode; /* Accumulator mode */
316 __u8 alaw_enable; /* AF ALAW status */
317};
318
319/* ISP CCDC structs */
320
321/* Abstraction layer CCDC configurations */
322#define OMAP3ISP_CCDC_ALAW (1 << 0)
323#define OMAP3ISP_CCDC_LPF (1 << 1)
324#define OMAP3ISP_CCDC_BLCLAMP (1 << 2)
325#define OMAP3ISP_CCDC_BCOMP (1 << 3)
326#define OMAP3ISP_CCDC_FPC (1 << 4)
327#define OMAP3ISP_CCDC_CULL (1 << 5)
328#define OMAP3ISP_CCDC_CONFIG_LSC (1 << 7)
329#define OMAP3ISP_CCDC_TBL_LSC (1 << 8)
330
331#define OMAP3ISP_RGB_MAX 3
332
333/* Enumeration constants for Alaw input width */
334enum omap3isp_alaw_ipwidth {
335 OMAP3ISP_ALAW_BIT12_3 = 0x3,
336 OMAP3ISP_ALAW_BIT11_2 = 0x4,
337 OMAP3ISP_ALAW_BIT10_1 = 0x5,
338 OMAP3ISP_ALAW_BIT9_0 = 0x6
339};
340
341/**
342 * struct omap3isp_ccdc_lsc_config - LSC configuration
343 * @offset: Table Offset of the gain table.
344 * @gain_mode_n: Vertical dimension of a paxel in LSC configuration.
345 * @gain_mode_m: Horizontal dimension of a paxel in LSC configuration.
346 * @gain_format: Gain table format.
347 * @fmtsph: Start pixel horizontal from start of the HS sync pulse.
348 * @fmtlnh: Number of pixels in horizontal direction to use for the data
349 * reformatter.
350 * @fmtslv: Start line from start of VS sync pulse for the data reformatter.
351 * @fmtlnv: Number of lines in vertical direction for the data reformatter.
352 * @initial_x: X position, in pixels, of the first active pixel in reference
353 * to the first active paxel. Must be an even number.
354 * @initial_y: Y position, in pixels, of the first active pixel in reference
355 * to the first active paxel. Must be an even number.
356 * @size: Size of LSC gain table. Filled when loaded from userspace.
357 */
358struct omap3isp_ccdc_lsc_config {
359 __u16 offset;
360 __u8 gain_mode_n;
361 __u8 gain_mode_m;
362 __u8 gain_format;
363 __u16 fmtsph;
364 __u16 fmtlnh;
365 __u16 fmtslv;
366 __u16 fmtlnv;
367 __u8 initial_x;
368 __u8 initial_y;
369 __u32 size;
370};
371
372/**
373 * struct omap3isp_ccdc_bclamp - Optical & Digital black clamp subtract
374 * @obgain: Optical black average gain.
375 * @obstpixel: Start Pixel w.r.t. HS pulse in Optical black sample.
376 * @oblines: Optical Black Sample lines.
377 * @oblen: Optical Black Sample Length.
378 * @dcsubval: Digital Black Clamp subtract value.
379 */
380struct omap3isp_ccdc_bclamp {
381 __u8 obgain;
382 __u8 obstpixel;
383 __u8 oblines;
384 __u8 oblen;
385 __u16 dcsubval;
386};
387
388/**
389 * struct omap3isp_ccdc_fpc - Faulty Pixels Correction
390 * @fpnum: Number of faulty pixels to be corrected in the frame.
391 * @fpcaddr: Memory address of the FPC Table
392 */
393struct omap3isp_ccdc_fpc {
394 __u16 fpnum;
395 __u32 fpcaddr;
396};
397
398/**
399 * struct omap3isp_ccdc_blcomp - Black Level Compensation parameters
400 * @b_mg: B/Mg pixels. 2's complement. -128 to +127.
401 * @gb_g: Gb/G pixels. 2's complement. -128 to +127.
402 * @gr_cy: Gr/Cy pixels. 2's complement. -128 to +127.
403 * @r_ye: R/Ye pixels. 2's complement. -128 to +127.
404 */
405struct omap3isp_ccdc_blcomp {
406 __u8 b_mg;
407 __u8 gb_g;
408 __u8 gr_cy;
409 __u8 r_ye;
410};
411
412/**
413 * omap3isp_ccdc_culling - Culling parameters
414 * @v_pattern: Vertical culling pattern.
415 * @h_odd: Horizontal Culling pattern for odd lines.
416 * @h_even: Horizontal Culling pattern for even lines.
417 */
418struct omap3isp_ccdc_culling {
419 __u8 v_pattern;
420 __u16 h_odd;
421 __u16 h_even;
422};
423
424/**
425 * omap3isp_ccdc_update_config - CCDC configuration
426 * @update: Specifies which CCDC registers should be updated.
427 * @flag: Specifies which CCDC functions should be enabled.
428 * @alawip: Enable/Disable A-Law compression.
429 * @bclamp: Black clamp control register.
430 * @blcomp: Black level compensation value for RGrGbB Pixels. 2's complement.
431 * @fpc: Number of faulty pixels corrected in the frame, address of FPC table.
432 * @cull: Cull control register.
433 * @lsc: Pointer to LSC gain table.
434 */
435struct omap3isp_ccdc_update_config {
436 __u16 update;
437 __u16 flag;
438 enum omap3isp_alaw_ipwidth alawip;
439 struct omap3isp_ccdc_bclamp __user *bclamp;
440 struct omap3isp_ccdc_blcomp __user *blcomp;
441 struct omap3isp_ccdc_fpc __user *fpc;
442 struct omap3isp_ccdc_lsc_config __user *lsc_cfg;
443 struct omap3isp_ccdc_culling __user *cull;
444 __u8 __user *lsc;
445};
446
447/* Preview configurations */
448#define OMAP3ISP_PREV_LUMAENH (1 << 0)
449#define OMAP3ISP_PREV_INVALAW (1 << 1)
450#define OMAP3ISP_PREV_HRZ_MED (1 << 2)
451#define OMAP3ISP_PREV_CFA (1 << 3)
452#define OMAP3ISP_PREV_CHROMA_SUPP (1 << 4)
453#define OMAP3ISP_PREV_WB (1 << 5)
454#define OMAP3ISP_PREV_BLKADJ (1 << 6)
455#define OMAP3ISP_PREV_RGB2RGB (1 << 7)
456#define OMAP3ISP_PREV_COLOR_CONV (1 << 8)
457#define OMAP3ISP_PREV_YC_LIMIT (1 << 9)
458#define OMAP3ISP_PREV_DEFECT_COR (1 << 10)
459/* Bit 11 was OMAP3ISP_PREV_GAMMABYPASS, now merged with OMAP3ISP_PREV_GAMMA */
460#define OMAP3ISP_PREV_DRK_FRM_CAPTURE (1 << 12)
461#define OMAP3ISP_PREV_DRK_FRM_SUBTRACT (1 << 13)
462#define OMAP3ISP_PREV_LENS_SHADING (1 << 14)
463#define OMAP3ISP_PREV_NF (1 << 15)
464#define OMAP3ISP_PREV_GAMMA (1 << 16)
465
466#define OMAP3ISP_PREV_NF_TBL_SIZE 64
467#define OMAP3ISP_PREV_CFA_TBL_SIZE 576
468#define OMAP3ISP_PREV_CFA_BLK_SIZE (OMAP3ISP_PREV_CFA_TBL_SIZE / 4)
469#define OMAP3ISP_PREV_GAMMA_TBL_SIZE 1024
470#define OMAP3ISP_PREV_YENH_TBL_SIZE 128
471
472#define OMAP3ISP_PREV_DETECT_CORRECT_CHANNELS 4
473
474/**
475 * struct omap3isp_prev_hmed - Horizontal Median Filter
476 * @odddist: Distance between consecutive pixels of same color in the odd line.
477 * @evendist: Distance between consecutive pixels of same color in the even
478 * line.
479 * @thres: Horizontal median filter threshold.
480 */
481struct omap3isp_prev_hmed {
482 __u8 odddist;
483 __u8 evendist;
484 __u8 thres;
485};
486
487/*
488 * Enumeration for CFA Formats supported by preview
489 */
490enum omap3isp_cfa_fmt {
491 OMAP3ISP_CFAFMT_BAYER,
492 OMAP3ISP_CFAFMT_SONYVGA,
493 OMAP3ISP_CFAFMT_RGBFOVEON,
494 OMAP3ISP_CFAFMT_DNSPL,
495 OMAP3ISP_CFAFMT_HONEYCOMB,
496 OMAP3ISP_CFAFMT_RRGGBBFOVEON
497};
498
499/**
500 * struct omap3isp_prev_cfa - CFA Interpolation
501 * @format: CFA Format Enum value supported by preview.
502 * @gradthrs_vert: CFA Gradient Threshold - Vertical.
503 * @gradthrs_horz: CFA Gradient Threshold - Horizontal.
504 * @table: Pointer to the CFA table.
505 */
506struct omap3isp_prev_cfa {
507 enum omap3isp_cfa_fmt format;
508 __u8 gradthrs_vert;
509 __u8 gradthrs_horz;
510 __u32 table[4][OMAP3ISP_PREV_CFA_BLK_SIZE];
511};
512
513/**
514 * struct omap3isp_prev_csup - Chrominance Suppression
515 * @gain: Gain.
516 * @thres: Threshold.
517 * @hypf_en: Flag to enable/disable the High Pass Filter.
518 */
519struct omap3isp_prev_csup {
520 __u8 gain;
521 __u8 thres;
522 __u8 hypf_en;
523};
524
525/**
526 * struct omap3isp_prev_wbal - White Balance
527 * @dgain: Digital gain (U10Q8).
528 * @coef3: White balance gain - COEF 3 (U8Q5).
529 * @coef2: White balance gain - COEF 2 (U8Q5).
530 * @coef1: White balance gain - COEF 1 (U8Q5).
531 * @coef0: White balance gain - COEF 0 (U8Q5).
532 */
533struct omap3isp_prev_wbal {
534 __u16 dgain;
535 __u8 coef3;
536 __u8 coef2;
537 __u8 coef1;
538 __u8 coef0;
539};
540
541/**
542 * struct omap3isp_prev_blkadj - Black Level Adjustment
543 * @red: Black level offset adjustment for Red in 2's complement format
544 * @green: Black level offset adjustment for Green in 2's complement format
545 * @blue: Black level offset adjustment for Blue in 2's complement format
546 */
547struct omap3isp_prev_blkadj {
548 /*Black level offset adjustment for Red in 2's complement format */
549 __u8 red;
550 /*Black level offset adjustment for Green in 2's complement format */
551 __u8 green;
552 /* Black level offset adjustment for Blue in 2's complement format */
553 __u8 blue;
554};
555
556/**
557 * struct omap3isp_prev_rgbtorgb - RGB to RGB Blending
558 * @matrix: Blending values(S12Q8 format)
559 * [RR] [GR] [BR]
560 * [RG] [GG] [BG]
561 * [RB] [GB] [BB]
562 * @offset: Blending offset value for R,G,B in 2's complement integer format.
563 */
564struct omap3isp_prev_rgbtorgb {
565 __u16 matrix[OMAP3ISP_RGB_MAX][OMAP3ISP_RGB_MAX];
566 __u16 offset[OMAP3ISP_RGB_MAX];
567};
568
569/**
570 * struct omap3isp_prev_csc - Color Space Conversion from RGB-YCbYCr
571 * @matrix: Color space conversion coefficients(S10Q8)
572 * [CSCRY] [CSCGY] [CSCBY]
573 * [CSCRCB] [CSCGCB] [CSCBCB]
574 * [CSCRCR] [CSCGCR] [CSCBCR]
575 * @offset: CSC offset values for Y offset, CB offset and CR offset respectively
576 */
577struct omap3isp_prev_csc {
578 __u16 matrix[OMAP3ISP_RGB_MAX][OMAP3ISP_RGB_MAX];
579 __s16 offset[OMAP3ISP_RGB_MAX];
580};
581
582/**
583 * struct omap3isp_prev_yclimit - Y, C Value Limit
584 * @minC: Minimum C value
585 * @maxC: Maximum C value
586 * @minY: Minimum Y value
587 * @maxY: Maximum Y value
588 */
589struct omap3isp_prev_yclimit {
590 __u8 minC;
591 __u8 maxC;
592 __u8 minY;
593 __u8 maxY;
594};
595
596/**
597 * struct omap3isp_prev_dcor - Defect correction
598 * @couplet_mode_en: Flag to enable or disable the couplet dc Correction in NF
599 * @detect_correct: Thresholds for correction bit 0:10 detect 16:25 correct
600 */
601struct omap3isp_prev_dcor {
602 __u8 couplet_mode_en;
603 __u32 detect_correct[OMAP3ISP_PREV_DETECT_CORRECT_CHANNELS];
604};
605
606/**
607 * struct omap3isp_prev_nf - Noise Filter
608 * @spread: Spread value to be used in Noise Filter
609 * @table: Pointer to the Noise Filter table
610 */
611struct omap3isp_prev_nf {
612 __u8 spread;
613 __u32 table[OMAP3ISP_PREV_NF_TBL_SIZE];
614};
615
616/**
617 * struct omap3isp_prev_gtables - Gamma correction tables
618 * @red: Array for red gamma table.
619 * @green: Array for green gamma table.
620 * @blue: Array for blue gamma table.
621 */
622struct omap3isp_prev_gtables {
623 __u32 red[OMAP3ISP_PREV_GAMMA_TBL_SIZE];
624 __u32 green[OMAP3ISP_PREV_GAMMA_TBL_SIZE];
625 __u32 blue[OMAP3ISP_PREV_GAMMA_TBL_SIZE];
626};
627
628/**
629 * struct omap3isp_prev_luma - Luma enhancement
630 * @table: Array for luma enhancement table.
631 */
632struct omap3isp_prev_luma {
633 __u32 table[OMAP3ISP_PREV_YENH_TBL_SIZE];
634};
635
636/**
637 * struct omap3isp_prev_update_config - Preview engine configuration (user)
638 * @update: Specifies which ISP Preview registers should be updated.
639 * @flag: Specifies which ISP Preview functions should be enabled.
640 * @shading_shift: 3bit value of shift used in shading compensation.
641 * @luma: Pointer to luma enhancement structure.
642 * @hmed: Pointer to structure containing the odd and even distance.
643 * between the pixels in the image along with the filter threshold.
644 * @cfa: Pointer to structure containing the CFA interpolation table, CFA.
645 * format in the image, vertical and horizontal gradient threshold.
646 * @csup: Pointer to Structure for Chrominance Suppression coefficients.
647 * @wbal: Pointer to structure for White Balance.
648 * @blkadj: Pointer to structure for Black Adjustment.
649 * @rgb2rgb: Pointer to structure for RGB to RGB Blending.
650 * @csc: Pointer to structure for Color Space Conversion from RGB-YCbYCr.
651 * @yclimit: Pointer to structure for Y, C Value Limit.
652 * @dcor: Pointer to structure for defect correction.
653 * @nf: Pointer to structure for Noise Filter
654 * @gamma: Pointer to gamma structure.
655 */
656struct omap3isp_prev_update_config {
657 __u32 update;
658 __u32 flag;
659 __u32 shading_shift;
660 struct omap3isp_prev_luma __user *luma;
661 struct omap3isp_prev_hmed __user *hmed;
662 struct omap3isp_prev_cfa __user *cfa;
663 struct omap3isp_prev_csup __user *csup;
664 struct omap3isp_prev_wbal __user *wbal;
665 struct omap3isp_prev_blkadj __user *blkadj;
666 struct omap3isp_prev_rgbtorgb __user *rgb2rgb;
667 struct omap3isp_prev_csc __user *csc;
668 struct omap3isp_prev_yclimit __user *yclimit;
669 struct omap3isp_prev_dcor __user *dcor;
670 struct omap3isp_prev_nf __user *nf;
671 struct omap3isp_prev_gtables __user *gamma;
672};
673
674#endif /* OMAP3_ISP_USER_H */
675

source code of linux/include/uapi/linux/omap3isp.h