1/*
2 * Copyright (C) 2006-2009 Texas Instruments Inc
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
17 */
18#ifndef _DM644X_CCDC_H
19#define _DM644X_CCDC_H
20#include <media/davinci/ccdc_types.h>
21#include <media/davinci/vpfe_types.h>
22
23/* enum for No of pixel per line to be avg. in Black Clamping*/
24enum ccdc_sample_length {
25	CCDC_SAMPLE_1PIXELS,
26	CCDC_SAMPLE_2PIXELS,
27	CCDC_SAMPLE_4PIXELS,
28	CCDC_SAMPLE_8PIXELS,
29	CCDC_SAMPLE_16PIXELS
30};
31
32/* enum for No of lines in Black Clamping */
33enum ccdc_sample_line {
34	CCDC_SAMPLE_1LINES,
35	CCDC_SAMPLE_2LINES,
36	CCDC_SAMPLE_4LINES,
37	CCDC_SAMPLE_8LINES,
38	CCDC_SAMPLE_16LINES
39};
40
41/* enum for Alaw gamma width */
42enum ccdc_gamma_width {
43	CCDC_GAMMA_BITS_15_6,	/* use bits 15-6 for gamma */
44	CCDC_GAMMA_BITS_14_5,
45	CCDC_GAMMA_BITS_13_4,
46	CCDC_GAMMA_BITS_12_3,
47	CCDC_GAMMA_BITS_11_2,
48	CCDC_GAMMA_BITS_10_1,
49	CCDC_GAMMA_BITS_09_0	/* use bits 9-0 for gamma */
50};
51
52/* returns the highest bit used for the gamma */
53static inline u8 ccdc_gamma_width_max_bit(enum ccdc_gamma_width width)
54{
55	return 15 - width;
56}
57
58enum ccdc_data_size {
59	CCDC_DATA_16BITS,
60	CCDC_DATA_15BITS,
61	CCDC_DATA_14BITS,
62	CCDC_DATA_13BITS,
63	CCDC_DATA_12BITS,
64	CCDC_DATA_11BITS,
65	CCDC_DATA_10BITS,
66	CCDC_DATA_8BITS
67};
68
69/* returns the highest bit used for this data size */
70static inline u8 ccdc_data_size_max_bit(enum ccdc_data_size sz)
71{
72	return sz == CCDC_DATA_8BITS ? 7 : 15 - sz;
73}
74
75/* structure for ALaw */
76struct ccdc_a_law {
77	/* Enable/disable A-Law */
78	unsigned char enable;
79	/* Gamma Width Input */
80	enum ccdc_gamma_width gamma_wd;
81};
82
83/* structure for Black Clamping */
84struct ccdc_black_clamp {
85	unsigned char enable;
86	/* only if bClampEnable is TRUE */
87	enum ccdc_sample_length sample_pixel;
88	/* only if bClampEnable is TRUE */
89	enum ccdc_sample_line sample_ln;
90	/* only if bClampEnable is TRUE */
91	unsigned short start_pixel;
92	/* only if bClampEnable is TRUE */
93	unsigned short sgain;
94	/* only if bClampEnable is FALSE */
95	unsigned short dc_sub;
96};
97
98/* structure for Black Level Compensation */
99struct ccdc_black_compensation {
100	/* Constant value to subtract from Red component */
101	char r;
102	/* Constant value to subtract from Gr component */
103	char gr;
104	/* Constant value to subtract from Blue component */
105	char b;
106	/* Constant value to subtract from Gb component */
107	char gb;
108};
109
110/* structure for fault pixel correction */
111struct ccdc_fault_pixel {
112	/* Enable or Disable fault pixel correction */
113	unsigned char enable;
114	/* Number of fault pixel */
115	unsigned short fp_num;
116	/* Address of fault pixel table */
117	unsigned long fpc_table_addr;
118};
119
120/* Structure for CCDC configuration parameters for raw capture mode passed
121 * by application
122 */
123struct ccdc_config_params_raw {
124	/* data size value from 8 to 16 bits */
125	enum ccdc_data_size data_sz;
126	/* Structure for Optional A-Law */
127	struct ccdc_a_law alaw;
128	/* Structure for Optical Black Clamp */
129	struct ccdc_black_clamp blk_clamp;
130	/* Structure for Black Compensation */
131	struct ccdc_black_compensation blk_comp;
132	/* Structure for Fault Pixel Module Configuration */
133	struct ccdc_fault_pixel fault_pxl;
134};
135
136
137#ifdef __KERNEL__
138#include <linux/io.h>
139/* Define to enable/disable video port */
140#define FP_NUM_BYTES		4
141/* Define for extra pixel/line and extra lines/frame */
142#define NUM_EXTRAPIXELS		8
143#define NUM_EXTRALINES		8
144
145/* settings for commonly used video formats */
146#define CCDC_WIN_PAL     {0, 0, 720, 576}
147/* ntsc square pixel */
148#define CCDC_WIN_VGA	{0, 0, (640 + NUM_EXTRAPIXELS), (480 + NUM_EXTRALINES)}
149
150/* Structure for CCDC configuration parameters for raw capture mode */
151struct ccdc_params_raw {
152	/* pixel format */
153	enum ccdc_pixfmt pix_fmt;
154	/* progressive or interlaced frame */
155	enum ccdc_frmfmt frm_fmt;
156	/* video window */
157	struct v4l2_rect win;
158	/* field id polarity */
159	enum vpfe_pin_pol fid_pol;
160	/* vertical sync polarity */
161	enum vpfe_pin_pol vd_pol;
162	/* horizontal sync polarity */
163	enum vpfe_pin_pol hd_pol;
164	/* interleaved or separated fields */
165	enum ccdc_buftype buf_type;
166	/*
167	 * enable to store the image in inverse
168	 * order in memory(bottom to top)
169	 */
170	unsigned char image_invert_enable;
171	/* configurable paramaters */
172	struct ccdc_config_params_raw config_params;
173};
174
175struct ccdc_params_ycbcr {
176	/* pixel format */
177	enum ccdc_pixfmt pix_fmt;
178	/* progressive or interlaced frame */
179	enum ccdc_frmfmt frm_fmt;
180	/* video window */
181	struct v4l2_rect win;
182	/* field id polarity */
183	enum vpfe_pin_pol fid_pol;
184	/* vertical sync polarity */
185	enum vpfe_pin_pol vd_pol;
186	/* horizontal sync polarity */
187	enum vpfe_pin_pol hd_pol;
188	/* enable BT.656 embedded sync mode */
189	int bt656_enable;
190	/* cb:y:cr:y or y:cb:y:cr in memory */
191	enum ccdc_pixorder pix_order;
192	/* interleaved or separated fields  */
193	enum ccdc_buftype buf_type;
194};
195#endif
196#endif				/* _DM644X_CCDC_H */
197