LXR linux/include/media/davinci/dm644x

   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#ifndef _DM644X_CCDC_H
  15#define _DM644X_CCDC_H
  16#include <media/davinci/ccdc_types.h>
  17#include <media/davinci/vpfe_types.h>
  18
  19/* enum for No of pixel per line to be avg. in Black Clamping*/
  20enum ccdc_sample_length {
  21        CCDC_SAMPLE_1PIXELS,
  22        CCDC_SAMPLE_2PIXELS,
  23        CCDC_SAMPLE_4PIXELS,
  24        CCDC_SAMPLE_8PIXELS,
  25        CCDC_SAMPLE_16PIXELS
  26};
  27
  28/* enum for No of lines in Black Clamping */
  29enum ccdc_sample_line {
  30        CCDC_SAMPLE_1LINES,
  31        CCDC_SAMPLE_2LINES,
  32        CCDC_SAMPLE_4LINES,
  33        CCDC_SAMPLE_8LINES,
  34        CCDC_SAMPLE_16LINES
  35};
  36
  37/* enum for Alaw gamma width */
  38enum ccdc_gamma_width {
  39        CCDC_GAMMA_BITS_15_6,   /* use bits 15-6 for gamma */
  40        CCDC_GAMMA_BITS_14_5,
  41        CCDC_GAMMA_BITS_13_4,
  42        CCDC_GAMMA_BITS_12_3,
  43        CCDC_GAMMA_BITS_11_2,
  44        CCDC_GAMMA_BITS_10_1,
  45        CCDC_GAMMA_BITS_09_0    /* use bits 9-0 for gamma */
  46};
  47
  48/* returns the highest bit used for the gamma */
  49static inline u8 ccdc_gamma_width_max_bit(enum ccdc_gamma_width width)
  50{
  51        return 15 - width;
  52}
  53
  54enum ccdc_data_size {
  55        CCDC_DATA_16BITS,
  56        CCDC_DATA_15BITS,
  57        CCDC_DATA_14BITS,
  58        CCDC_DATA_13BITS,
  59        CCDC_DATA_12BITS,
  60        CCDC_DATA_11BITS,
  61        CCDC_DATA_10BITS,
  62        CCDC_DATA_8BITS
  63};
  64
  65/* returns the highest bit used for this data size */
  66static inline u8 ccdc_data_size_max_bit(enum ccdc_data_size sz)
  67{
  68        return sz == CCDC_DATA_8BITS ? 7 : 15 - sz;
  69}
  70
  71/* structure for ALaw */
  72struct ccdc_a_law {
  73        /* Enable/disable A-Law */
  74        unsigned char enable;
  75        /* Gamma Width Input */
  76        enum ccdc_gamma_width gamma_wd;
  77};
  78
  79/* structure for Black Clamping */
  80struct ccdc_black_clamp {
  81        unsigned char enable;
  82        /* only if bClampEnable is TRUE */
  83        enum ccdc_sample_length sample_pixel;
  84        /* only if bClampEnable is TRUE */
  85        enum ccdc_sample_line sample_ln;
  86        /* only if bClampEnable is TRUE */
  87        unsigned short start_pixel;
  88        /* only if bClampEnable is TRUE */
  89        unsigned short sgain;
  90        /* only if bClampEnable is FALSE */
  91        unsigned short dc_sub;
  92};
  93
  94/* structure for Black Level Compensation */
  95struct ccdc_black_compensation {
  96        /* Constant value to subtract from Red component */
  97        char r;
  98        /* Constant value to subtract from Gr component */
  99        char gr;
 100        /* Constant value to subtract from Blue component */
 101        char b;
 102        /* Constant value to subtract from Gb component */
 103        char gb;
 104};
 105
 106/* Structure for CCDC configuration parameters for raw capture mode passed
 107 * by application
 108 */
 109struct ccdc_config_params_raw {
 110        /* data size value from 8 to 16 bits */
 111        enum ccdc_data_size data_sz;
 112        /* Structure for Optional A-Law */
 113        struct ccdc_a_law alaw;
 114        /* Structure for Optical Black Clamp */
 115        struct ccdc_black_clamp blk_clamp;
 116        /* Structure for Black Compensation */
 117        struct ccdc_black_compensation blk_comp;
 118};
 119
 120
 121#ifdef __KERNEL__
 122#include <linux/io.h>
 123/* Define to enable/disable video port */
 124#define FP_NUM_BYTES            4
 125/* Define for extra pixel/line and extra lines/frame */
 126#define NUM_EXTRAPIXELS         8
 127#define NUM_EXTRALINES          8
 128
 129/* settings for commonly used video formats */
 130#define CCDC_WIN_PAL     {0, 0, 720, 576}
 131/* ntsc square pixel */
 132#define CCDC_WIN_VGA    {0, 0, (640 + NUM_EXTRAPIXELS), (480 + NUM_EXTRALINES)}
 133
 134/* Structure for CCDC configuration parameters for raw capture mode */
 135struct ccdc_params_raw {
 136        /* pixel format */
 137        enum ccdc_pixfmt pix_fmt;
 138        /* progressive or interlaced frame */
 139        enum ccdc_frmfmt frm_fmt;
 140        /* video window */
 141        struct v4l2_rect win;
 142        /* field id polarity */
 143        enum vpfe_pin_pol fid_pol;
 144        /* vertical sync polarity */
 145        enum vpfe_pin_pol vd_pol;
 146        /* horizontal sync polarity */
 147        enum vpfe_pin_pol hd_pol;
 148        /* interleaved or separated fields */
 149        enum ccdc_buftype buf_type;
 150        /*
 151         * enable to store the image in inverse
 152         * order in memory(bottom to top)
 153         */
 154        unsigned char image_invert_enable;
 155        /* configurable paramaters */
 156        struct ccdc_config_params_raw config_params;
 157};
 158
 159struct ccdc_params_ycbcr {
 160        /* pixel format */
 161        enum ccdc_pixfmt pix_fmt;
 162        /* progressive or interlaced frame */
 163        enum ccdc_frmfmt frm_fmt;
 164        /* video window */
 165        struct v4l2_rect win;
 166        /* field id polarity */
 167        enum vpfe_pin_pol fid_pol;
 168        /* vertical sync polarity */
 169        enum vpfe_pin_pol vd_pol;
 170        /* horizontal sync polarity */
 171        enum vpfe_pin_pol hd_pol;
 172        /* enable BT.656 embedded sync mode */
 173        int bt656_enable;
 174        /* cb:y:cr:y or y:cb:y:cr in memory */
 175        enum ccdc_pixorder pix_order;
 176        /* interleaved or separated fields  */
 177        enum ccdc_buftype buf_type;
 178};
 179#endif
 180#endif                          /* _DM644X_CCDC_H */
 181