linux/drivers/staging/media/sn9c102/sn9c102_ov7660.c
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   1/***************************************************************************
   2 * Plug-in for OV7660 image sensor connected to the SN9C1xx PC Camera      *
   3 * Controllers                                                             *
   4 *                                                                         *
   5 * Copyright (C) 2007 by Luca Risolia <luca.risolia@studio.unibo.it>       *
   6 *                                                                         *
   7 * This program is free software; you can redistribute it and/or modify    *
   8 * it under the terms of the GNU General Public License as published by    *
   9 * the Free Software Foundation; either version 2 of the License, or       *
  10 * (at your option) any later version.                                     *
  11 *                                                                         *
  12 * This program is distributed in the hope that it will be useful,         *
  13 * but WITHOUT ANY WARRANTY; without even the implied warranty of          *
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           *
  15 * GNU General Public License for more details.                            *
  16 *                                                                         *
  17 * You should have received a copy of the GNU General Public License       *
  18 * along with this program; if not, write to the Free Software             *
  19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.               *
  20 ***************************************************************************/
  21
  22#include "sn9c102_sensor.h"
  23#include "sn9c102_devtable.h"
  24
  25
  26static int ov7660_init(struct sn9c102_device* cam)
  27{
  28        int err = 0;
  29
  30        err = sn9c102_write_const_regs(cam, {0x40, 0x02}, {0x00, 0x03},
  31                                       {0x1a, 0x04}, {0x03, 0x10},
  32                                       {0x08, 0x14}, {0x20, 0x17},
  33                                       {0x8b, 0x18}, {0x00, 0x19},
  34                                       {0x1d, 0x1a}, {0x10, 0x1b},
  35                                       {0x02, 0x1c}, {0x03, 0x1d},
  36                                       {0x0f, 0x1e}, {0x0c, 0x1f},
  37                                       {0x00, 0x20}, {0x29, 0x21},
  38                                       {0x40, 0x22}, {0x54, 0x23},
  39                                       {0x66, 0x24}, {0x76, 0x25},
  40                                       {0x85, 0x26}, {0x94, 0x27},
  41                                       {0xa1, 0x28}, {0xae, 0x29},
  42                                       {0xbb, 0x2a}, {0xc7, 0x2b},
  43                                       {0xd3, 0x2c}, {0xde, 0x2d},
  44                                       {0xea, 0x2e}, {0xf4, 0x2f},
  45                                       {0xff, 0x30}, {0x00, 0x3f},
  46                                       {0xc7, 0x40}, {0x01, 0x41},
  47                                       {0x44, 0x42}, {0x00, 0x43},
  48                                       {0x44, 0x44}, {0x00, 0x45},
  49                                       {0x44, 0x46}, {0x00, 0x47},
  50                                       {0xc7, 0x48}, {0x01, 0x49},
  51                                       {0xc7, 0x4a}, {0x01, 0x4b},
  52                                       {0xc7, 0x4c}, {0x01, 0x4d},
  53                                       {0x44, 0x4e}, {0x00, 0x4f},
  54                                       {0x44, 0x50}, {0x00, 0x51},
  55                                       {0x44, 0x52}, {0x00, 0x53},
  56                                       {0xc7, 0x54}, {0x01, 0x55},
  57                                       {0xc7, 0x56}, {0x01, 0x57},
  58                                       {0xc7, 0x58}, {0x01, 0x59},
  59                                       {0x44, 0x5a}, {0x00, 0x5b},
  60                                       {0x44, 0x5c}, {0x00, 0x5d},
  61                                       {0x44, 0x5e}, {0x00, 0x5f},
  62                                       {0xc7, 0x60}, {0x01, 0x61},
  63                                       {0xc7, 0x62}, {0x01, 0x63},
  64                                       {0xc7, 0x64}, {0x01, 0x65},
  65                                       {0x44, 0x66}, {0x00, 0x67},
  66                                       {0x44, 0x68}, {0x00, 0x69},
  67                                       {0x44, 0x6a}, {0x00, 0x6b},
  68                                       {0xc7, 0x6c}, {0x01, 0x6d},
  69                                       {0xc7, 0x6e}, {0x01, 0x6f},
  70                                       {0xc7, 0x70}, {0x01, 0x71},
  71                                       {0x44, 0x72}, {0x00, 0x73},
  72                                       {0x44, 0x74}, {0x00, 0x75},
  73                                       {0x44, 0x76}, {0x00, 0x77},
  74                                       {0xc7, 0x78}, {0x01, 0x79},
  75                                       {0xc7, 0x7a}, {0x01, 0x7b},
  76                                       {0xc7, 0x7c}, {0x01, 0x7d},
  77                                       {0x44, 0x7e}, {0x00, 0x7f},
  78                                       {0x14, 0x84}, {0x00, 0x85},
  79                                       {0x27, 0x86}, {0x00, 0x87},
  80                                       {0x07, 0x88}, {0x00, 0x89},
  81                                       {0xec, 0x8a}, {0x0f, 0x8b},
  82                                       {0xd8, 0x8c}, {0x0f, 0x8d},
  83                                       {0x3d, 0x8e}, {0x00, 0x8f},
  84                                       {0x3d, 0x90}, {0x00, 0x91},
  85                                       {0xcd, 0x92}, {0x0f, 0x93},
  86                                       {0xf7, 0x94}, {0x0f, 0x95},
  87                                       {0x0c, 0x96}, {0x00, 0x97},
  88                                       {0x00, 0x98}, {0x66, 0x99},
  89                                       {0x05, 0x9a}, {0x00, 0x9b},
  90                                       {0x04, 0x9c}, {0x00, 0x9d},
  91                                       {0x08, 0x9e}, {0x00, 0x9f},
  92                                       {0x2d, 0xc0}, {0x2d, 0xc1},
  93                                       {0x3a, 0xc2}, {0x05, 0xc3},
  94                                       {0x04, 0xc4}, {0x3f, 0xc5},
  95                                       {0x00, 0xc6}, {0x00, 0xc7},
  96                                       {0x50, 0xc8}, {0x3C, 0xc9},
  97                                       {0x28, 0xca}, {0xd8, 0xcb},
  98                                       {0x14, 0xcc}, {0xec, 0xcd},
  99                                       {0x32, 0xce}, {0xdd, 0xcf},
 100                                       {0x32, 0xd0}, {0xdd, 0xd1},
 101                                       {0x6a, 0xd2}, {0x50, 0xd3},
 102                                       {0x00, 0xd4}, {0x00, 0xd5},
 103                                       {0x00, 0xd6});
 104
 105        err += sn9c102_i2c_write(cam, 0x12, 0x80);
 106        err += sn9c102_i2c_write(cam, 0x11, 0x09);
 107        err += sn9c102_i2c_write(cam, 0x00, 0x0A);
 108        err += sn9c102_i2c_write(cam, 0x01, 0x80);
 109        err += sn9c102_i2c_write(cam, 0x02, 0x80);
 110        err += sn9c102_i2c_write(cam, 0x03, 0x00);
 111        err += sn9c102_i2c_write(cam, 0x04, 0x00);
 112        err += sn9c102_i2c_write(cam, 0x05, 0x08);
 113        err += sn9c102_i2c_write(cam, 0x06, 0x0B);
 114        err += sn9c102_i2c_write(cam, 0x07, 0x00);
 115        err += sn9c102_i2c_write(cam, 0x08, 0x1C);
 116        err += sn9c102_i2c_write(cam, 0x09, 0x01);
 117        err += sn9c102_i2c_write(cam, 0x0A, 0x76);
 118        err += sn9c102_i2c_write(cam, 0x0B, 0x60);
 119        err += sn9c102_i2c_write(cam, 0x0C, 0x00);
 120        err += sn9c102_i2c_write(cam, 0x0D, 0x08);
 121        err += sn9c102_i2c_write(cam, 0x0E, 0x04);
 122        err += sn9c102_i2c_write(cam, 0x0F, 0x6F);
 123        err += sn9c102_i2c_write(cam, 0x10, 0x20);
 124        err += sn9c102_i2c_write(cam, 0x11, 0x03);
 125        err += sn9c102_i2c_write(cam, 0x12, 0x05);
 126        err += sn9c102_i2c_write(cam, 0x13, 0xC7);
 127        err += sn9c102_i2c_write(cam, 0x14, 0x2C);
 128        err += sn9c102_i2c_write(cam, 0x15, 0x00);
 129        err += sn9c102_i2c_write(cam, 0x16, 0x02);
 130        err += sn9c102_i2c_write(cam, 0x17, 0x10);
 131        err += sn9c102_i2c_write(cam, 0x18, 0x60);
 132        err += sn9c102_i2c_write(cam, 0x19, 0x02);
 133        err += sn9c102_i2c_write(cam, 0x1A, 0x7B);
 134        err += sn9c102_i2c_write(cam, 0x1B, 0x02);
 135        err += sn9c102_i2c_write(cam, 0x1C, 0x7F);
 136        err += sn9c102_i2c_write(cam, 0x1D, 0xA2);
 137        err += sn9c102_i2c_write(cam, 0x1E, 0x01);
 138        err += sn9c102_i2c_write(cam, 0x1F, 0x0E);
 139        err += sn9c102_i2c_write(cam, 0x20, 0x05);
 140        err += sn9c102_i2c_write(cam, 0x21, 0x05);
 141        err += sn9c102_i2c_write(cam, 0x22, 0x05);
 142        err += sn9c102_i2c_write(cam, 0x23, 0x05);
 143        err += sn9c102_i2c_write(cam, 0x24, 0x68);
 144        err += sn9c102_i2c_write(cam, 0x25, 0x58);
 145        err += sn9c102_i2c_write(cam, 0x26, 0xD4);
 146        err += sn9c102_i2c_write(cam, 0x27, 0x80);
 147        err += sn9c102_i2c_write(cam, 0x28, 0x80);
 148        err += sn9c102_i2c_write(cam, 0x29, 0x30);
 149        err += sn9c102_i2c_write(cam, 0x2A, 0x00);
 150        err += sn9c102_i2c_write(cam, 0x2B, 0x00);
 151        err += sn9c102_i2c_write(cam, 0x2C, 0x80);
 152        err += sn9c102_i2c_write(cam, 0x2D, 0x00);
 153        err += sn9c102_i2c_write(cam, 0x2E, 0x00);
 154        err += sn9c102_i2c_write(cam, 0x2F, 0x0E);
 155        err += sn9c102_i2c_write(cam, 0x30, 0x08);
 156        err += sn9c102_i2c_write(cam, 0x31, 0x30);
 157        err += sn9c102_i2c_write(cam, 0x32, 0xB4);
 158        err += sn9c102_i2c_write(cam, 0x33, 0x00);
 159        err += sn9c102_i2c_write(cam, 0x34, 0x07);
 160        err += sn9c102_i2c_write(cam, 0x35, 0x84);
 161        err += sn9c102_i2c_write(cam, 0x36, 0x00);
 162        err += sn9c102_i2c_write(cam, 0x37, 0x0C);
 163        err += sn9c102_i2c_write(cam, 0x38, 0x02);
 164        err += sn9c102_i2c_write(cam, 0x39, 0x43);
 165        err += sn9c102_i2c_write(cam, 0x3A, 0x00);
 166        err += sn9c102_i2c_write(cam, 0x3B, 0x0A);
 167        err += sn9c102_i2c_write(cam, 0x3C, 0x6C);
 168        err += sn9c102_i2c_write(cam, 0x3D, 0x99);
 169        err += sn9c102_i2c_write(cam, 0x3E, 0x0E);
 170        err += sn9c102_i2c_write(cam, 0x3F, 0x41);
 171        err += sn9c102_i2c_write(cam, 0x40, 0xC1);
 172        err += sn9c102_i2c_write(cam, 0x41, 0x22);
 173        err += sn9c102_i2c_write(cam, 0x42, 0x08);
 174        err += sn9c102_i2c_write(cam, 0x43, 0xF0);
 175        err += sn9c102_i2c_write(cam, 0x44, 0x10);
 176        err += sn9c102_i2c_write(cam, 0x45, 0x78);
 177        err += sn9c102_i2c_write(cam, 0x46, 0xA8);
 178        err += sn9c102_i2c_write(cam, 0x47, 0x60);
 179        err += sn9c102_i2c_write(cam, 0x48, 0x80);
 180        err += sn9c102_i2c_write(cam, 0x49, 0x00);
 181        err += sn9c102_i2c_write(cam, 0x4A, 0x00);
 182        err += sn9c102_i2c_write(cam, 0x4B, 0x00);
 183        err += sn9c102_i2c_write(cam, 0x4C, 0x00);
 184        err += sn9c102_i2c_write(cam, 0x4D, 0x00);
 185        err += sn9c102_i2c_write(cam, 0x4E, 0x00);
 186        err += sn9c102_i2c_write(cam, 0x4F, 0x46);
 187        err += sn9c102_i2c_write(cam, 0x50, 0x36);
 188        err += sn9c102_i2c_write(cam, 0x51, 0x0F);
 189        err += sn9c102_i2c_write(cam, 0x52, 0x17);
 190        err += sn9c102_i2c_write(cam, 0x53, 0x7F);
 191        err += sn9c102_i2c_write(cam, 0x54, 0x96);
 192        err += sn9c102_i2c_write(cam, 0x55, 0x40);
 193        err += sn9c102_i2c_write(cam, 0x56, 0x40);
 194        err += sn9c102_i2c_write(cam, 0x57, 0x40);
 195        err += sn9c102_i2c_write(cam, 0x58, 0x0F);
 196        err += sn9c102_i2c_write(cam, 0x59, 0xBA);
 197        err += sn9c102_i2c_write(cam, 0x5A, 0x9A);
 198        err += sn9c102_i2c_write(cam, 0x5B, 0x22);
 199        err += sn9c102_i2c_write(cam, 0x5C, 0xB9);
 200        err += sn9c102_i2c_write(cam, 0x5D, 0x9B);
 201        err += sn9c102_i2c_write(cam, 0x5E, 0x10);
 202        err += sn9c102_i2c_write(cam, 0x5F, 0xF0);
 203        err += sn9c102_i2c_write(cam, 0x60, 0x05);
 204        err += sn9c102_i2c_write(cam, 0x61, 0x60);
 205        err += sn9c102_i2c_write(cam, 0x62, 0x00);
 206        err += sn9c102_i2c_write(cam, 0x63, 0x00);
 207        err += sn9c102_i2c_write(cam, 0x64, 0x50);
 208        err += sn9c102_i2c_write(cam, 0x65, 0x30);
 209        err += sn9c102_i2c_write(cam, 0x66, 0x00);
 210        err += sn9c102_i2c_write(cam, 0x67, 0x80);
 211        err += sn9c102_i2c_write(cam, 0x68, 0x7A);
 212        err += sn9c102_i2c_write(cam, 0x69, 0x90);
 213        err += sn9c102_i2c_write(cam, 0x6A, 0x80);
 214        err += sn9c102_i2c_write(cam, 0x6B, 0x0A);
 215        err += sn9c102_i2c_write(cam, 0x6C, 0x30);
 216        err += sn9c102_i2c_write(cam, 0x6D, 0x48);
 217        err += sn9c102_i2c_write(cam, 0x6E, 0x80);
 218        err += sn9c102_i2c_write(cam, 0x6F, 0x74);
 219        err += sn9c102_i2c_write(cam, 0x70, 0x64);
 220        err += sn9c102_i2c_write(cam, 0x71, 0x60);
 221        err += sn9c102_i2c_write(cam, 0x72, 0x5C);
 222        err += sn9c102_i2c_write(cam, 0x73, 0x58);
 223        err += sn9c102_i2c_write(cam, 0x74, 0x54);
 224        err += sn9c102_i2c_write(cam, 0x75, 0x4C);
 225        err += sn9c102_i2c_write(cam, 0x76, 0x40);
 226        err += sn9c102_i2c_write(cam, 0x77, 0x38);
 227        err += sn9c102_i2c_write(cam, 0x78, 0x34);
 228        err += sn9c102_i2c_write(cam, 0x79, 0x30);
 229        err += sn9c102_i2c_write(cam, 0x7A, 0x2F);
 230        err += sn9c102_i2c_write(cam, 0x7B, 0x2B);
 231        err += sn9c102_i2c_write(cam, 0x7C, 0x03);
 232        err += sn9c102_i2c_write(cam, 0x7D, 0x07);
 233        err += sn9c102_i2c_write(cam, 0x7E, 0x17);
 234        err += sn9c102_i2c_write(cam, 0x7F, 0x34);
 235        err += sn9c102_i2c_write(cam, 0x80, 0x41);
 236        err += sn9c102_i2c_write(cam, 0x81, 0x4D);
 237        err += sn9c102_i2c_write(cam, 0x82, 0x58);
 238        err += sn9c102_i2c_write(cam, 0x83, 0x63);
 239        err += sn9c102_i2c_write(cam, 0x84, 0x6E);
 240        err += sn9c102_i2c_write(cam, 0x85, 0x77);
 241        err += sn9c102_i2c_write(cam, 0x86, 0x87);
 242        err += sn9c102_i2c_write(cam, 0x87, 0x95);
 243        err += sn9c102_i2c_write(cam, 0x88, 0xAF);
 244        err += sn9c102_i2c_write(cam, 0x89, 0xC7);
 245        err += sn9c102_i2c_write(cam, 0x8A, 0xDF);
 246        err += sn9c102_i2c_write(cam, 0x8B, 0x99);
 247        err += sn9c102_i2c_write(cam, 0x8C, 0x99);
 248        err += sn9c102_i2c_write(cam, 0x8D, 0xCF);
 249        err += sn9c102_i2c_write(cam, 0x8E, 0x20);
 250        err += sn9c102_i2c_write(cam, 0x8F, 0x26);
 251        err += sn9c102_i2c_write(cam, 0x90, 0x10);
 252        err += sn9c102_i2c_write(cam, 0x91, 0x0C);
 253        err += sn9c102_i2c_write(cam, 0x92, 0x25);
 254        err += sn9c102_i2c_write(cam, 0x93, 0x00);
 255        err += sn9c102_i2c_write(cam, 0x94, 0x50);
 256        err += sn9c102_i2c_write(cam, 0x95, 0x50);
 257        err += sn9c102_i2c_write(cam, 0x96, 0x00);
 258        err += sn9c102_i2c_write(cam, 0x97, 0x01);
 259        err += sn9c102_i2c_write(cam, 0x98, 0x10);
 260        err += sn9c102_i2c_write(cam, 0x99, 0x40);
 261        err += sn9c102_i2c_write(cam, 0x9A, 0x40);
 262        err += sn9c102_i2c_write(cam, 0x9B, 0x20);
 263        err += sn9c102_i2c_write(cam, 0x9C, 0x00);
 264        err += sn9c102_i2c_write(cam, 0x9D, 0x99);
 265        err += sn9c102_i2c_write(cam, 0x9E, 0x7F);
 266        err += sn9c102_i2c_write(cam, 0x9F, 0x00);
 267        err += sn9c102_i2c_write(cam, 0xA0, 0x00);
 268        err += sn9c102_i2c_write(cam, 0xA1, 0x00);
 269
 270        return err;
 271}
 272
 273
 274static int ov7660_get_ctrl(struct sn9c102_device* cam,
 275                           struct v4l2_control* ctrl)
 276{
 277        int err = 0;
 278
 279        switch (ctrl->id) {
 280        case V4L2_CID_EXPOSURE:
 281                ctrl->value = sn9c102_i2c_read(cam, 0x10);
 282                if (ctrl->value < 0)
 283                        return -EIO;
 284                break;
 285        case V4L2_CID_DO_WHITE_BALANCE:
 286                ctrl->value = sn9c102_read_reg(cam, 0x02);
 287                if (ctrl->value < 0)
 288                        return -EIO;
 289                ctrl->value = (ctrl->value & 0x04) ? 1 : 0;
 290                break;
 291        case V4L2_CID_RED_BALANCE:
 292                ctrl->value = sn9c102_read_reg(cam, 0x05);
 293                if (ctrl->value < 0)
 294                        return -EIO;
 295                ctrl->value &= 0x7f;
 296                break;
 297        case V4L2_CID_BLUE_BALANCE:
 298                ctrl->value = sn9c102_read_reg(cam, 0x06);
 299                if (ctrl->value < 0)
 300                        return -EIO;
 301                ctrl->value &= 0x7f;
 302                break;
 303        case SN9C102_V4L2_CID_GREEN_BALANCE:
 304                ctrl->value = sn9c102_read_reg(cam, 0x07);
 305                if (ctrl->value < 0)
 306                        return -EIO;
 307                ctrl->value &= 0x7f;
 308                break;
 309        case SN9C102_V4L2_CID_BAND_FILTER:
 310                ctrl->value = sn9c102_i2c_read(cam, 0x3b);
 311                if (ctrl->value < 0)
 312                        return -EIO;
 313                ctrl->value &= 0x08;
 314                break;
 315        case V4L2_CID_GAIN:
 316                ctrl->value = sn9c102_i2c_read(cam, 0x00);
 317                if (ctrl->value < 0)
 318                        return -EIO;
 319                ctrl->value &= 0x1f;
 320                break;
 321        case V4L2_CID_AUTOGAIN:
 322                ctrl->value = sn9c102_i2c_read(cam, 0x13);
 323                if (ctrl->value < 0)
 324                        return -EIO;
 325                ctrl->value &= 0x01;
 326                break;
 327        default:
 328                return -EINVAL;
 329        }
 330
 331        return err ? -EIO : 0;
 332}
 333
 334
 335static int ov7660_set_ctrl(struct sn9c102_device* cam,
 336                           const struct v4l2_control* ctrl)
 337{
 338        int err = 0;
 339
 340        switch (ctrl->id) {
 341        case V4L2_CID_EXPOSURE:
 342                err += sn9c102_i2c_write(cam, 0x10, ctrl->value);
 343                break;
 344        case V4L2_CID_DO_WHITE_BALANCE:
 345                err += sn9c102_write_reg(cam, 0x43 | (ctrl->value << 2), 0x02);
 346                break;
 347        case V4L2_CID_RED_BALANCE:
 348                err += sn9c102_write_reg(cam, ctrl->value, 0x05);
 349                break;
 350        case V4L2_CID_BLUE_BALANCE:
 351                err += sn9c102_write_reg(cam, ctrl->value, 0x06);
 352                break;
 353        case SN9C102_V4L2_CID_GREEN_BALANCE:
 354                err += sn9c102_write_reg(cam, ctrl->value, 0x07);
 355                break;
 356        case SN9C102_V4L2_CID_BAND_FILTER:
 357                err += sn9c102_i2c_write(cam, ctrl->value << 3, 0x3b);
 358                break;
 359        case V4L2_CID_GAIN:
 360                err += sn9c102_i2c_write(cam, 0x00, 0x60 + ctrl->value);
 361                break;
 362        case V4L2_CID_AUTOGAIN:
 363                err += sn9c102_i2c_write(cam, 0x13, 0xc0 |
 364                                                    (ctrl->value * 0x07));
 365                break;
 366        default:
 367                return -EINVAL;
 368        }
 369
 370        return err ? -EIO : 0;
 371}
 372
 373
 374static int ov7660_set_crop(struct sn9c102_device* cam,
 375                           const struct v4l2_rect* rect)
 376{
 377        struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
 378        int err = 0;
 379        u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 1,
 380           v_start = (u8)(rect->top - s->cropcap.bounds.top) + 1;
 381
 382        err += sn9c102_write_reg(cam, h_start, 0x12);
 383        err += sn9c102_write_reg(cam, v_start, 0x13);
 384
 385        return err;
 386}
 387
 388
 389static int ov7660_set_pix_format(struct sn9c102_device* cam,
 390                                 const struct v4l2_pix_format* pix)
 391{
 392        int r0, err = 0;
 393
 394        r0 = sn9c102_pread_reg(cam, 0x01);
 395
 396        if (pix->pixelformat == V4L2_PIX_FMT_JPEG) {
 397                err += sn9c102_write_reg(cam, r0 | 0x40, 0x01);
 398                err += sn9c102_write_reg(cam, 0xa2, 0x17);
 399                err += sn9c102_i2c_write(cam, 0x11, 0x00);
 400        } else {
 401                err += sn9c102_write_reg(cam, r0 | 0x40, 0x01);
 402                err += sn9c102_write_reg(cam, 0xa2, 0x17);
 403                err += sn9c102_i2c_write(cam, 0x11, 0x0d);
 404        }
 405
 406        return err;
 407}
 408
 409
 410static const struct sn9c102_sensor ov7660 = {
 411        .name = "OV7660",
 412        .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
 413        .supported_bridge = BRIDGE_SN9C105 | BRIDGE_SN9C120,
 414        .sysfs_ops = SN9C102_I2C_READ | SN9C102_I2C_WRITE,
 415        .frequency = SN9C102_I2C_100KHZ,
 416        .interface = SN9C102_I2C_2WIRES,
 417        .i2c_slave_id = 0x21,
 418        .init = &ov7660_init,
 419        .qctrl = {
 420                {
 421                        .id = V4L2_CID_GAIN,
 422                        .type = V4L2_CTRL_TYPE_INTEGER,
 423                        .name = "global gain",
 424                        .minimum = 0x00,
 425                        .maximum = 0x1f,
 426                        .step = 0x01,
 427                        .default_value = 0x09,
 428                        .flags = 0,
 429                },
 430                {
 431                        .id = V4L2_CID_EXPOSURE,
 432                        .type = V4L2_CTRL_TYPE_INTEGER,
 433                        .name = "exposure",
 434                        .minimum = 0x00,
 435                        .maximum = 0xff,
 436                        .step = 0x01,
 437                        .default_value = 0x27,
 438                        .flags = 0,
 439                },
 440                {
 441                        .id = V4L2_CID_DO_WHITE_BALANCE,
 442                        .type = V4L2_CTRL_TYPE_BOOLEAN,
 443                        .name = "night mode",
 444                        .minimum = 0x00,
 445                        .maximum = 0x01,
 446                        .step = 0x01,
 447                        .default_value = 0x00,
 448                        .flags = 0,
 449                },
 450                {
 451                        .id = V4L2_CID_RED_BALANCE,
 452                        .type = V4L2_CTRL_TYPE_INTEGER,
 453                        .name = "red balance",
 454                        .minimum = 0x00,
 455                        .maximum = 0x7f,
 456                        .step = 0x01,
 457                        .default_value = 0x14,
 458                        .flags = 0,
 459                },
 460                {
 461                        .id = V4L2_CID_BLUE_BALANCE,
 462                        .type = V4L2_CTRL_TYPE_INTEGER,
 463                        .name = "blue balance",
 464                        .minimum = 0x00,
 465                        .maximum = 0x7f,
 466                        .step = 0x01,
 467                        .default_value = 0x14,
 468                        .flags = 0,
 469                },
 470                {
 471                        .id = V4L2_CID_AUTOGAIN,
 472                        .type = V4L2_CTRL_TYPE_BOOLEAN,
 473                        .name = "auto adjust",
 474                        .minimum = 0x00,
 475                        .maximum = 0x01,
 476                        .step = 0x01,
 477                        .default_value = 0x01,
 478                        .flags = 0,
 479                },
 480                {
 481                        .id = SN9C102_V4L2_CID_GREEN_BALANCE,
 482                        .type = V4L2_CTRL_TYPE_INTEGER,
 483                        .name = "green balance",
 484                        .minimum = 0x00,
 485                        .maximum = 0x7f,
 486                        .step = 0x01,
 487                        .default_value = 0x14,
 488                        .flags = 0,
 489                },
 490                {
 491                        .id = SN9C102_V4L2_CID_BAND_FILTER,
 492                        .type = V4L2_CTRL_TYPE_BOOLEAN,
 493                        .name = "band filter",
 494                        .minimum = 0x00,
 495                        .maximum = 0x01,
 496                        .step = 0x01,
 497                        .default_value = 0x00,
 498                        .flags = 0,
 499                },
 500        },
 501        .get_ctrl = &ov7660_get_ctrl,
 502        .set_ctrl = &ov7660_set_ctrl,
 503        .cropcap = {
 504                .bounds = {
 505                        .left = 0,
 506                        .top = 0,
 507                        .width = 640,
 508                        .height = 480,
 509                },
 510                .defrect = {
 511                        .left = 0,
 512                        .top = 0,
 513                        .width = 640,
 514                        .height = 480,
 515                },
 516        },
 517        .set_crop = &ov7660_set_crop,
 518        .pix_format = {
 519                .width = 640,
 520                .height = 480,
 521                .pixelformat = V4L2_PIX_FMT_JPEG,
 522                .priv = 8,
 523        },
 524        .set_pix_format = &ov7660_set_pix_format
 525};
 526
 527
 528int sn9c102_probe_ov7660(struct sn9c102_device* cam)
 529{
 530        int pid, ver, err;
 531
 532        err = sn9c102_write_const_regs(cam, {0x01, 0xf1}, {0x00, 0xf1},
 533                                       {0x01, 0x01}, {0x00, 0x01},
 534                                       {0x28, 0x17});
 535
 536        pid = sn9c102_i2c_try_read(cam, &ov7660, 0x0a);
 537        ver = sn9c102_i2c_try_read(cam, &ov7660, 0x0b);
 538        if (err || pid < 0 || ver < 0)
 539                return -EIO;
 540        if (pid != 0x76 || ver != 0x60)
 541                return -ENODEV;
 542
 543        sn9c102_attach_sensor(cam, &ov7660);
 544
 545        return 0;
 546}
 547