include/media/davinci/dm644x_ccdc.h

   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*/
  11 enum 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 */
  20 enum 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 */
  29 enum 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 */
  40 static inline u8 ccdc_gamma_width_max_bit(enum ccdc_gamma_width width)
  41 {
  42         return 15 - width;
  43 }
  44
  45 enum 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 */
  57 static 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 */
  63 struct 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 */
  71 struct 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 */
  86 struct 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  */
 100 struct 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 */
 126 struct 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
 150 struct 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 */