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  * @frame_number: Frame number of requested stats.
166  * @cur_frame: Current frame number being processed.
167  * @config_counter: Number of the configuration associated with the data.
168  */
169 struct omap3isp_stat_data {
170 #ifdef __KERNEL__
171 	struct {
172 		__s64	tv_sec;
173 		__s64	tv_usec;
174 	} ts;
175 #else
176 	struct timeval ts;
177 #endif
178 	void __user *buf;
179 	__u32 buf_size;
180 	__u16 frame_number;
181 	__u16 cur_frame;
182 	__u16 config_counter;
183 };
184 
185 #ifdef __KERNEL__
186 struct omap3isp_stat_data_time32 {
187 	struct {
188 		__s32	tv_sec;
189 		__s32	tv_usec;
190 	} ts;
191 	__u32 buf;
192 	__u32 buf_size;
193 	__u16 frame_number;
194 	__u16 cur_frame;
195 	__u16 config_counter;
196 };
197 #endif
198 
199 /* Histogram related structs */
200 
201 /* Flags for number of bins */
202 #define OMAP3ISP_HIST_BINS_32		0
203 #define OMAP3ISP_HIST_BINS_64		1
204 #define OMAP3ISP_HIST_BINS_128		2
205 #define OMAP3ISP_HIST_BINS_256		3
206 
207 /* Number of bins * 4 colors * 4-bytes word */
208 #define OMAP3ISP_HIST_MEM_SIZE_BINS(n)	((1 << ((n)+5))*4*4)
209 
210 #define OMAP3ISP_HIST_MEM_SIZE		1024
211 #define OMAP3ISP_HIST_MIN_REGIONS	1
212 #define OMAP3ISP_HIST_MAX_REGIONS	4
213 #define OMAP3ISP_HIST_MAX_WB_GAIN	255
214 #define OMAP3ISP_HIST_MIN_WB_GAIN	0
215 #define OMAP3ISP_HIST_MAX_BIT_WIDTH	14
216 #define OMAP3ISP_HIST_MIN_BIT_WIDTH	8
217 #define OMAP3ISP_HIST_MAX_WG		4
218 #define OMAP3ISP_HIST_MAX_BUF_SIZE	4096
219 
220 /* Source */
221 #define OMAP3ISP_HIST_SOURCE_CCDC	0
222 #define OMAP3ISP_HIST_SOURCE_MEM	1
223 
224 /* CFA pattern */
225 #define OMAP3ISP_HIST_CFA_BAYER		0
226 #define OMAP3ISP_HIST_CFA_FOVEONX3	1
227 
228 struct omap3isp_hist_region {
229 	__u16 h_start;
230 	__u16 h_end;
231 	__u16 v_start;
232 	__u16 v_end;
233 };
234 
235 struct omap3isp_hist_config {
236 	/*
237 	 * Common fields.
238 	 * They should be the first ones and must be in the same order as in
239 	 * ispstat_generic_config struct.
240 	 */
241 	__u32 buf_size;
242 	__u16 config_counter;
243 
244 	__u8 num_acc_frames;	/* Num of image frames to be processed and
245 				   accumulated for each histogram frame */
246 	__u16 hist_bins;	/* number of bins: 32, 64, 128, or 256 */
247 	__u8 cfa;		/* BAYER or FOVEON X3 */
248 	__u8 wg[OMAP3ISP_HIST_MAX_WG];	/* White Balance Gain */
249 	__u8 num_regions;	/* number of regions to be configured */
250 	struct omap3isp_hist_region region[OMAP3ISP_HIST_MAX_REGIONS];
251 };
252 
253 /* Auto Focus related structs */
254 
255 #define OMAP3ISP_AF_NUM_COEF		11
256 
257 enum omap3isp_h3a_af_fvmode {
258 	OMAP3ISP_AF_MODE_SUMMED = 0,
259 	OMAP3ISP_AF_MODE_PEAK = 1
260 };
261 
262 /* Red, Green, and blue pixel location in the AF windows */
263 enum omap3isp_h3a_af_rgbpos {
264 	OMAP3ISP_AF_GR_GB_BAYER = 0,	/* GR and GB as Bayer pattern */
265 	OMAP3ISP_AF_RG_GB_BAYER = 1,	/* RG and GB as Bayer pattern */
266 	OMAP3ISP_AF_GR_BG_BAYER = 2,	/* GR and BG as Bayer pattern */
267 	OMAP3ISP_AF_RG_BG_BAYER = 3,	/* RG and BG as Bayer pattern */
268 	OMAP3ISP_AF_GG_RB_CUSTOM = 4,	/* GG and RB as custom pattern */
269 	OMAP3ISP_AF_RB_GG_CUSTOM = 5	/* RB and GG as custom pattern */
270 };
271 
272 /* Contains the information regarding the Horizontal Median Filter */
273 struct omap3isp_h3a_af_hmf {
274 	__u8 enable;	/* Status of Horizontal Median Filter */
275 	__u8 threshold;	/* Threshold Value for Horizontal Median Filter */
276 };
277 
278 /* Contains the information regarding the IIR Filters */
279 struct omap3isp_h3a_af_iir {
280 	__u16 h_start;			/* IIR horizontal start */
281 	__u16 coeff_set0[OMAP3ISP_AF_NUM_COEF];	/* Filter coefficient, set 0 */
282 	__u16 coeff_set1[OMAP3ISP_AF_NUM_COEF];	/* Filter coefficient, set 1 */
283 };
284 
285 /* Contains the information regarding the Paxels Structure in AF Engine */
286 struct omap3isp_h3a_af_paxel {
287 	__u16 h_start;	/* Horizontal Start Position */
288 	__u16 v_start;	/* Vertical Start Position */
289 	__u8 width;	/* Width of the Paxel */
290 	__u8 height;	/* Height of the Paxel */
291 	__u8 h_cnt;	/* Horizontal Count */
292 	__u8 v_cnt;	/* vertical Count */
293 	__u8 line_inc;	/* Line Increment */
294 };
295 
296 /* Contains the parameters required for hardware set up of AF Engine */
297 struct omap3isp_h3a_af_config {
298 	/*
299 	 * Common fields.
300 	 * They should be the first ones and must be in the same order as in
301 	 * ispstat_generic_config struct.
302 	 */
303 	__u32 buf_size;
304 	__u16 config_counter;
305 
306 	struct omap3isp_h3a_af_hmf hmf;		/* HMF configurations */
307 	struct omap3isp_h3a_af_iir iir;		/* IIR filter configurations */
308 	struct omap3isp_h3a_af_paxel paxel;	/* Paxel parameters */
309 	enum omap3isp_h3a_af_rgbpos rgb_pos;	/* RGB Positions */
310 	enum omap3isp_h3a_af_fvmode fvmode;	/* Accumulator mode */
311 	__u8 alaw_enable;			/* AF ALAW status */
312 };
313 
314 /* ISP CCDC structs */
315 
316 /* Abstraction layer CCDC configurations */
317 #define OMAP3ISP_CCDC_ALAW		(1 << 0)
318 #define OMAP3ISP_CCDC_LPF		(1 << 1)
319 #define OMAP3ISP_CCDC_BLCLAMP		(1 << 2)
320 #define OMAP3ISP_CCDC_BCOMP		(1 << 3)
321 #define OMAP3ISP_CCDC_FPC		(1 << 4)
322 #define OMAP3ISP_CCDC_CULL		(1 << 5)
323 #define OMAP3ISP_CCDC_CONFIG_LSC	(1 << 7)
324 #define OMAP3ISP_CCDC_TBL_LSC		(1 << 8)
325 
326 #define OMAP3ISP_RGB_MAX		3
327 
328 /* Enumeration constants for Alaw input width */
329 enum omap3isp_alaw_ipwidth {
330 	OMAP3ISP_ALAW_BIT12_3 = 0x3,
331 	OMAP3ISP_ALAW_BIT11_2 = 0x4,
332 	OMAP3ISP_ALAW_BIT10_1 = 0x5,
333 	OMAP3ISP_ALAW_BIT9_0 = 0x6
334 };
335 
336 /**
337  * struct omap3isp_ccdc_lsc_config - LSC configuration
338  * @offset: Table Offset of the gain table.
339  * @gain_mode_n: Vertical dimension of a paxel in LSC configuration.
340  * @gain_mode_m: Horizontal dimension of a paxel in LSC configuration.
341  * @gain_format: Gain table format.
342  * @fmtsph: Start pixel horizontal from start of the HS sync pulse.
343  * @fmtlnh: Number of pixels in horizontal direction to use for the data
344  *          reformatter.
345  * @fmtslv: Start line from start of VS sync pulse for the data reformatter.
346  * @fmtlnv: Number of lines in vertical direction for the data reformatter.
347  * @initial_x: X position, in pixels, of the first active pixel in reference
348  *             to the first active paxel. Must be an even number.
349  * @initial_y: Y position, in pixels, of the first active pixel in reference
350  *             to the first active paxel. Must be an even number.
351  * @size: Size of LSC gain table. Filled when loaded from userspace.
352  */
353 struct omap3isp_ccdc_lsc_config {
354 	__u16 offset;
355 	__u8 gain_mode_n;
356 	__u8 gain_mode_m;
357 	__u8 gain_format;
358 	__u16 fmtsph;
359 	__u16 fmtlnh;
360 	__u16 fmtslv;
361 	__u16 fmtlnv;
362 	__u8 initial_x;
363 	__u8 initial_y;
364 	__u32 size;
365 };
366 
367 /**
368  * struct omap3isp_ccdc_bclamp - Optical & Digital black clamp subtract
369  * @obgain: Optical black average gain.
370  * @obstpixel: Start Pixel w.r.t. HS pulse in Optical black sample.
371  * @oblines: Optical Black Sample lines.
372  * @oblen: Optical Black Sample Length.
373  * @dcsubval: Digital Black Clamp subtract value.
374  */
375 struct omap3isp_ccdc_bclamp {
376 	__u8 obgain;
377 	__u8 obstpixel;
378 	__u8 oblines;
379 	__u8 oblen;
380 	__u16 dcsubval;
381 };
382 
383 /**
384  * struct omap3isp_ccdc_fpc - Faulty Pixels Correction
385  * @fpnum: Number of faulty pixels to be corrected in the frame.
386  * @fpcaddr: Memory address of the FPC Table
387  */
388 struct omap3isp_ccdc_fpc {
389 	__u16 fpnum;
390 	__u32 fpcaddr;
391 };
392 
393 /**
394  * struct omap3isp_ccdc_blcomp - Black Level Compensation parameters
395  * @b_mg: B/Mg pixels. 2's complement. -128 to +127.
396  * @gb_g: Gb/G pixels. 2's complement. -128 to +127.
397  * @gr_cy: Gr/Cy pixels. 2's complement. -128 to +127.
398  * @r_ye: R/Ye pixels. 2's complement. -128 to +127.
399  */
400 struct omap3isp_ccdc_blcomp {
401 	__u8 b_mg;
402 	__u8 gb_g;
403 	__u8 gr_cy;
404 	__u8 r_ye;
405 };
406 
407 /**
408  * omap3isp_ccdc_culling - Culling parameters
409  * @v_pattern: Vertical culling pattern.
410  * @h_odd: Horizontal Culling pattern for odd lines.
411  * @h_even: Horizontal Culling pattern for even lines.
412  */
413 struct omap3isp_ccdc_culling {
414 	__u8 v_pattern;
415 	__u16 h_odd;
416 	__u16 h_even;
417 };
418 
419 /**
420  * omap3isp_ccdc_update_config - CCDC configuration
421  * @update: Specifies which CCDC registers should be updated.
422  * @flag: Specifies which CCDC functions should be enabled.
423  * @alawip: Enable/Disable A-Law compression.
424  * @bclamp: Black clamp control register.
425  * @blcomp: Black level compensation value for RGrGbB Pixels. 2's complement.
426  * @fpc: Number of faulty pixels corrected in the frame, address of FPC table.
427  * @cull: Cull control register.
428  * @lsc: Pointer to LSC gain table.
429  */
430 struct omap3isp_ccdc_update_config {
431 	__u16 update;
432 	__u16 flag;
433 	enum omap3isp_alaw_ipwidth alawip;
434 	struct omap3isp_ccdc_bclamp __user *bclamp;
435 	struct omap3isp_ccdc_blcomp __user *blcomp;
436 	struct omap3isp_ccdc_fpc __user *fpc;
437 	struct omap3isp_ccdc_lsc_config __user *lsc_cfg;
438 	struct omap3isp_ccdc_culling __user *cull;
439 	__u8 __user *lsc;
440 };
441 
442 /* Preview configurations */
443 #define OMAP3ISP_PREV_LUMAENH		(1 << 0)
444 #define OMAP3ISP_PREV_INVALAW		(1 << 1)
445 #define OMAP3ISP_PREV_HRZ_MED		(1 << 2)
446 #define OMAP3ISP_PREV_CFA		(1 << 3)
447 #define OMAP3ISP_PREV_CHROMA_SUPP	(1 << 4)
448 #define OMAP3ISP_PREV_WB		(1 << 5)
449 #define OMAP3ISP_PREV_BLKADJ		(1 << 6)
450 #define OMAP3ISP_PREV_RGB2RGB		(1 << 7)
451 #define OMAP3ISP_PREV_COLOR_CONV	(1 << 8)
452 #define OMAP3ISP_PREV_YC_LIMIT		(1 << 9)
453 #define OMAP3ISP_PREV_DEFECT_COR	(1 << 10)
454 /* Bit 11 was OMAP3ISP_PREV_GAMMABYPASS, now merged with OMAP3ISP_PREV_GAMMA */
455 #define OMAP3ISP_PREV_DRK_FRM_CAPTURE	(1 << 12)
456 #define OMAP3ISP_PREV_DRK_FRM_SUBTRACT	(1 << 13)
457 #define OMAP3ISP_PREV_LENS_SHADING	(1 << 14)
458 #define OMAP3ISP_PREV_NF		(1 << 15)
459 #define OMAP3ISP_PREV_GAMMA		(1 << 16)
460 
461 #define OMAP3ISP_PREV_NF_TBL_SIZE	64
462 #define OMAP3ISP_PREV_CFA_TBL_SIZE	576
463 #define OMAP3ISP_PREV_CFA_BLK_SIZE	(OMAP3ISP_PREV_CFA_TBL_SIZE / 4)
464 #define OMAP3ISP_PREV_GAMMA_TBL_SIZE	1024
465 #define OMAP3ISP_PREV_YENH_TBL_SIZE	128
466 
467 #define OMAP3ISP_PREV_DETECT_CORRECT_CHANNELS	4
468 
469 /**
470  * struct omap3isp_prev_hmed - Horizontal Median Filter
471  * @odddist: Distance between consecutive pixels of same color in the odd line.
472  * @evendist: Distance between consecutive pixels of same color in the even
473  *            line.
474  * @thres: Horizontal median filter threshold.
475  */
476 struct omap3isp_prev_hmed {
477 	__u8 odddist;
478 	__u8 evendist;
479 	__u8 thres;
480 };
481 
482 /*
483  * Enumeration for CFA Formats supported by preview
484  */
485 enum omap3isp_cfa_fmt {
486 	OMAP3ISP_CFAFMT_BAYER,
487 	OMAP3ISP_CFAFMT_SONYVGA,
488 	OMAP3ISP_CFAFMT_RGBFOVEON,
489 	OMAP3ISP_CFAFMT_DNSPL,
490 	OMAP3ISP_CFAFMT_HONEYCOMB,
491 	OMAP3ISP_CFAFMT_RRGGBBFOVEON
492 };
493 
494 /**
495  * struct omap3isp_prev_cfa - CFA Interpolation
496  * @format: CFA Format Enum value supported by preview.
497  * @gradthrs_vert: CFA Gradient Threshold - Vertical.
498  * @gradthrs_horz: CFA Gradient Threshold - Horizontal.
499  * @table: Pointer to the CFA table.
500  */
501 struct omap3isp_prev_cfa {
502 	enum omap3isp_cfa_fmt format;
503 	__u8 gradthrs_vert;
504 	__u8 gradthrs_horz;
505 	__u32 table[4][OMAP3ISP_PREV_CFA_BLK_SIZE];
506 };
507 
508 /**
509  * struct omap3isp_prev_csup - Chrominance Suppression
510  * @gain: Gain.
511  * @thres: Threshold.
512  * @hypf_en: Flag to enable/disable the High Pass Filter.
513  */
514 struct omap3isp_prev_csup {
515 	__u8 gain;
516 	__u8 thres;
517 	__u8 hypf_en;
518 };
519 
520 /**
521  * struct omap3isp_prev_wbal - White Balance
522  * @dgain: Digital gain (U10Q8).
523  * @coef3: White balance gain - COEF 3 (U8Q5).
524  * @coef2: White balance gain - COEF 2 (U8Q5).
525  * @coef1: White balance gain - COEF 1 (U8Q5).
526  * @coef0: White balance gain - COEF 0 (U8Q5).
527  */
528 struct omap3isp_prev_wbal {
529 	__u16 dgain;
530 	__u8 coef3;
531 	__u8 coef2;
532 	__u8 coef1;
533 	__u8 coef0;
534 };
535 
536 /**
537  * struct omap3isp_prev_blkadj - Black Level Adjustment
538  * @red: Black level offset adjustment for Red in 2's complement format
539  * @green: Black level offset adjustment for Green in 2's complement format
540  * @blue: Black level offset adjustment for Blue in 2's complement format
541  */
542 struct omap3isp_prev_blkadj {
543 	/*Black level offset adjustment for Red in 2's complement format */
544 	__u8 red;
545 	/*Black level offset adjustment for Green in 2's complement format */
546 	__u8 green;
547 	/* Black level offset adjustment for Blue in 2's complement format */
548 	__u8 blue;
549 };
550 
551 /**
552  * struct omap3isp_prev_rgbtorgb - RGB to RGB Blending
553  * @matrix: Blending values(S12Q8 format)
554  *              [RR] [GR] [BR]
555  *              [RG] [GG] [BG]
556  *              [RB] [GB] [BB]
557  * @offset: Blending offset value for R,G,B in 2's complement integer format.
558  */
559 struct omap3isp_prev_rgbtorgb {
560 	__u16 matrix[OMAP3ISP_RGB_MAX][OMAP3ISP_RGB_MAX];
561 	__u16 offset[OMAP3ISP_RGB_MAX];
562 };
563 
564 /**
565  * struct omap3isp_prev_csc - Color Space Conversion from RGB-YCbYCr
566  * @matrix: Color space conversion coefficients(S10Q8)
567  *              [CSCRY]  [CSCGY]  [CSCBY]
568  *              [CSCRCB] [CSCGCB] [CSCBCB]
569  *              [CSCRCR] [CSCGCR] [CSCBCR]
570  * @offset: CSC offset values for Y offset, CB offset and CR offset respectively
571  */
572 struct omap3isp_prev_csc {
573 	__u16 matrix[OMAP3ISP_RGB_MAX][OMAP3ISP_RGB_MAX];
574 	__s16 offset[OMAP3ISP_RGB_MAX];
575 };
576 
577 /**
578  * struct omap3isp_prev_yclimit - Y, C Value Limit
579  * @minC: Minimum C value
580  * @maxC: Maximum C value
581  * @minY: Minimum Y value
582  * @maxY: Maximum Y value
583  */
584 struct omap3isp_prev_yclimit {
585 	__u8 minC;
586 	__u8 maxC;
587 	__u8 minY;
588 	__u8 maxY;
589 };
590 
591 /**
592  * struct omap3isp_prev_dcor - Defect correction
593  * @couplet_mode_en: Flag to enable or disable the couplet dc Correction in NF
594  * @detect_correct: Thresholds for correction bit 0:10 detect 16:25 correct
595  */
596 struct omap3isp_prev_dcor {
597 	__u8 couplet_mode_en;
598 	__u32 detect_correct[OMAP3ISP_PREV_DETECT_CORRECT_CHANNELS];
599 };
600 
601 /**
602  * struct omap3isp_prev_nf - Noise Filter
603  * @spread: Spread value to be used in Noise Filter
604  * @table: Pointer to the Noise Filter table
605  */
606 struct omap3isp_prev_nf {
607 	__u8 spread;
608 	__u32 table[OMAP3ISP_PREV_NF_TBL_SIZE];
609 };
610 
611 /**
612  * struct omap3isp_prev_gtables - Gamma correction tables
613  * @red: Array for red gamma table.
614  * @green: Array for green gamma table.
615  * @blue: Array for blue gamma table.
616  */
617 struct omap3isp_prev_gtables {
618 	__u32 red[OMAP3ISP_PREV_GAMMA_TBL_SIZE];
619 	__u32 green[OMAP3ISP_PREV_GAMMA_TBL_SIZE];
620 	__u32 blue[OMAP3ISP_PREV_GAMMA_TBL_SIZE];
621 };
622 
623 /**
624  * struct omap3isp_prev_luma - Luma enhancement
625  * @table: Array for luma enhancement table.
626  */
627 struct omap3isp_prev_luma {
628 	__u32 table[OMAP3ISP_PREV_YENH_TBL_SIZE];
629 };
630 
631 /**
632  * struct omap3isp_prev_update_config - Preview engine configuration (user)
633  * @update: Specifies which ISP Preview registers should be updated.
634  * @flag: Specifies which ISP Preview functions should be enabled.
635  * @shading_shift: 3bit value of shift used in shading compensation.
636  * @luma: Pointer to luma enhancement structure.
637  * @hmed: Pointer to structure containing the odd and even distance.
638  *        between the pixels in the image along with the filter threshold.
639  * @cfa: Pointer to structure containing the CFA interpolation table, CFA.
640  *       format in the image, vertical and horizontal gradient threshold.
641  * @csup: Pointer to Structure for Chrominance Suppression coefficients.
642  * @wbal: Pointer to structure for White Balance.
643  * @blkadj: Pointer to structure for Black Adjustment.
644  * @rgb2rgb: Pointer to structure for RGB to RGB Blending.
645  * @csc: Pointer to structure for Color Space Conversion from RGB-YCbYCr.
646  * @yclimit: Pointer to structure for Y, C Value Limit.
647  * @dcor: Pointer to structure for defect correction.
648  * @nf: Pointer to structure for Noise Filter
649  * @gamma: Pointer to gamma structure.
650  */
651 struct omap3isp_prev_update_config {
652 	__u32 update;
653 	__u32 flag;
654 	__u32 shading_shift;
655 	struct omap3isp_prev_luma __user *luma;
656 	struct omap3isp_prev_hmed __user *hmed;
657 	struct omap3isp_prev_cfa __user *cfa;
658 	struct omap3isp_prev_csup __user *csup;
659 	struct omap3isp_prev_wbal __user *wbal;
660 	struct omap3isp_prev_blkadj __user *blkadj;
661 	struct omap3isp_prev_rgbtorgb __user *rgb2rgb;
662 	struct omap3isp_prev_csc __user *csc;
663 	struct omap3isp_prev_yclimit __user *yclimit;
664 	struct omap3isp_prev_dcor __user *dcor;
665 	struct omap3isp_prev_nf __user *nf;
666 	struct omap3isp_prev_gtables __user *gamma;
667 };
668 
669 #endif	/* OMAP3_ISP_USER_H */
670