include/media/davinci/dm644x_ccdc.h

   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*/
  20 enum 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 */
  29 enum 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 */
  38 enum 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 */
  49 static inline u8 ccdc_gamma_width_max_bit(enum ccdc_gamma_width width)
  50 {
  51         return 15 - width;
  52 }
  53
  54 enum 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 */
  66 static 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 */
  72 struct 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 */
  80 struct 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 */
  95 struct 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  */
 109 struct 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 */
 135 struct 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
 159 struct 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 */