1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Copyright (C) 2006-2009 Texas Instruments Inc
4 */
5#ifndef _DM644X_CCDC_H
6#define _DM644X_CCDC_H
7#include <media/davinci/ccdc_types.h>
8#include <media/davinci/vpfe_types.h>
9
10/* enum for No of pixel per line to be avg. in Black Clamping*/
11enum ccdc_sample_length {
12	CCDC_SAMPLE_1PIXELS,
13	CCDC_SAMPLE_2PIXELS,
14	CCDC_SAMPLE_4PIXELS,
15	CCDC_SAMPLE_8PIXELS,
16	CCDC_SAMPLE_16PIXELS
17};
18
19/* enum for No of lines in Black Clamping */
20enum ccdc_sample_line {
21	CCDC_SAMPLE_1LINES,
22	CCDC_SAMPLE_2LINES,
23	CCDC_SAMPLE_4LINES,
24	CCDC_SAMPLE_8LINES,
25	CCDC_SAMPLE_16LINES
26};
27
28/* enum for Alaw gamma width */
29enum ccdc_gamma_width {
30	CCDC_GAMMA_BITS_15_6,	/* use bits 15-6 for gamma */
31	CCDC_GAMMA_BITS_14_5,
32	CCDC_GAMMA_BITS_13_4,
33	CCDC_GAMMA_BITS_12_3,
34	CCDC_GAMMA_BITS_11_2,
35	CCDC_GAMMA_BITS_10_1,
36	CCDC_GAMMA_BITS_09_0	/* use bits 9-0 for gamma */
37};
38
39/* returns the highest bit used for the gamma */
40static inline u8 ccdc_gamma_width_max_bit(enum ccdc_gamma_width width)
41{
42	return 15 - width;
43}
44
45enum ccdc_data_size {
46	CCDC_DATA_16BITS,
47	CCDC_DATA_15BITS,
48	CCDC_DATA_14BITS,
49	CCDC_DATA_13BITS,
50	CCDC_DATA_12BITS,
51	CCDC_DATA_11BITS,
52	CCDC_DATA_10BITS,
53	CCDC_DATA_8BITS
54};
55
56/* returns the highest bit used for this data size */
57static inline u8 ccdc_data_size_max_bit(enum ccdc_data_size sz)
58{
59	return sz == CCDC_DATA_8BITS ? 7 : 15 - sz;
60}
61
62/* structure for ALaw */
63struct ccdc_a_law {
64	/* Enable/disable A-Law */
65	unsigned char enable;
66	/* Gamma Width Input */
67	enum ccdc_gamma_width gamma_wd;
68};
69
70/* structure for Black Clamping */
71struct ccdc_black_clamp {
72	unsigned char enable;
73	/* only if bClampEnable is TRUE */
74	enum ccdc_sample_length sample_pixel;
75	/* only if bClampEnable is TRUE */
76	enum ccdc_sample_line sample_ln;
77	/* only if bClampEnable is TRUE */
78	unsigned short start_pixel;
79	/* only if bClampEnable is TRUE */
80	unsigned short sgain;
81	/* only if bClampEnable is FALSE */
82	unsigned short dc_sub;
83};
84
85/* structure for Black Level Compensation */
86struct ccdc_black_compensation {
87	/* Constant value to subtract from Red component */
88	char r;
89	/* Constant value to subtract from Gr component */
90	char gr;
91	/* Constant value to subtract from Blue component */
92	char b;
93	/* Constant value to subtract from Gb component */
94	char gb;
95};
96
97/* Structure for CCDC configuration parameters for raw capture mode passed
98 * by application
99 */
100struct ccdc_config_params_raw {
101	/* data size value from 8 to 16 bits */
102	enum ccdc_data_size data_sz;
103	/* Structure for Optional A-Law */
104	struct ccdc_a_law alaw;
105	/* Structure for Optical Black Clamp */
106	struct ccdc_black_clamp blk_clamp;
107	/* Structure for Black Compensation */
108	struct ccdc_black_compensation blk_comp;
109};
110
111
112#ifdef __KERNEL__
113#include <linux/io.h>
114/* Define to enable/disable video port */
115#define FP_NUM_BYTES		4
116/* Define for extra pixel/line and extra lines/frame */
117#define NUM_EXTRAPIXELS		8
118#define NUM_EXTRALINES		8
119
120/* settings for commonly used video formats */
121#define CCDC_WIN_PAL     {0, 0, 720, 576}
122/* ntsc square pixel */
123#define CCDC_WIN_VGA	{0, 0, (640 + NUM_EXTRAPIXELS), (480 + NUM_EXTRALINES)}
124
125/* Structure for CCDC configuration parameters for raw capture mode */
126struct ccdc_params_raw {
127	/* pixel format */
128	enum ccdc_pixfmt pix_fmt;
129	/* progressive or interlaced frame */
130	enum ccdc_frmfmt frm_fmt;
131	/* video window */
132	struct v4l2_rect win;
133	/* field id polarity */
134	enum vpfe_pin_pol fid_pol;
135	/* vertical sync polarity */
136	enum vpfe_pin_pol vd_pol;
137	/* horizontal sync polarity */
138	enum vpfe_pin_pol hd_pol;
139	/* interleaved or separated fields */
140	enum ccdc_buftype buf_type;
141	/*
142	 * enable to store the image in inverse
143	 * order in memory(bottom to top)
144	 */
145	unsigned char image_invert_enable;
146	/* configurable parameters */
147	struct ccdc_config_params_raw config_params;
148};
149
150struct ccdc_params_ycbcr {
151	/* pixel format */
152	enum ccdc_pixfmt pix_fmt;
153	/* progressive or interlaced frame */
154	enum ccdc_frmfmt frm_fmt;
155	/* video window */
156	struct v4l2_rect win;
157	/* field id polarity */
158	enum vpfe_pin_pol fid_pol;
159	/* vertical sync polarity */
160	enum vpfe_pin_pol vd_pol;
161	/* horizontal sync polarity */
162	enum vpfe_pin_pol hd_pol;
163	/* enable BT.656 embedded sync mode */
164	int bt656_enable;
165	/* cb:y:cr:y or y:cb:y:cr in memory */
166	enum ccdc_pixorder pix_order;
167	/* interleaved or separated fields  */
168	enum ccdc_buftype buf_type;
169};
170#endif
171#endif				/* _DM644X_CCDC_H */
172