git.oblomov.eu Git - linux-2.6/blob - drivers/media/video/sn9c102/sn9c102_hv7131r.c

   1 /***************************************************************************
   2  * Plug-in for HV7131R 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
  26 static int hv7131r_init(struct sn9c102_device* cam)
  27 {
  28         int err = 0;
  29
  30         switch (sn9c102_get_bridge(cam)) {
  31         case BRIDGE_SN9C103:
  32                 err = sn9c102_write_const_regs(cam, {0x00, 0x03}, {0x1a, 0x04},
  33                                                {0x20, 0x05}, {0x20, 0x06},
  34                                                {0x03, 0x10}, {0x00, 0x14},
  35                                                {0x60, 0x17}, {0x0a, 0x18},
  36                                                {0xf0, 0x19}, {0x1d, 0x1a},
  37                                                {0x10, 0x1b}, {0x02, 0x1c},
  38                                                {0x03, 0x1d}, {0x0f, 0x1e},
  39                                                {0x0c, 0x1f}, {0x00, 0x20},
  40                                                {0x10, 0x21}, {0x20, 0x22},
  41                                                {0x30, 0x23}, {0x40, 0x24},
  42                                                {0x50, 0x25}, {0x60, 0x26},
  43                                                {0x70, 0x27}, {0x80, 0x28},
  44                                                {0x90, 0x29}, {0xa0, 0x2a},
  45                                                {0xb0, 0x2b}, {0xc0, 0x2c},
  46                                                {0xd0, 0x2d}, {0xe0, 0x2e},
  47                                                {0xf0, 0x2f}, {0xff, 0x30});
  48                 break;
  49         case BRIDGE_SN9C105:
  50         case BRIDGE_SN9C120:
  51                 err = sn9c102_write_const_regs(cam, {0x44, 0x01}, {0x40, 0x02},
  52                                                {0x00, 0x03}, {0x1a, 0x04},
  53                                                {0x44, 0x05}, {0x3e, 0x06},
  54                                                {0x1a, 0x07}, {0x03, 0x10},
  55                                                {0x08, 0x14}, {0xa3, 0x17},
  56                                                {0x4b, 0x18}, {0x00, 0x19},
  57                                                {0x1d, 0x1a}, {0x10, 0x1b},
  58                                                {0x02, 0x1c}, {0x03, 0x1d},
  59                                                {0x0f, 0x1e}, {0x0c, 0x1f},
  60                                                {0x00, 0x20}, {0x29, 0x21},
  61                                                {0x40, 0x22}, {0x54, 0x23},
  62                                                {0x66, 0x24}, {0x76, 0x25},
  63                                                {0x85, 0x26}, {0x94, 0x27},
  64                                                {0xa1, 0x28}, {0xae, 0x29},
  65                                                {0xbb, 0x2a}, {0xc7, 0x2b},
  66                                                {0xd3, 0x2c}, {0xde, 0x2d},
  67                                                {0xea, 0x2e}, {0xf4, 0x2f},
  68                                                {0xff, 0x30}, {0x00, 0x3F},
  69                                                {0xC7, 0x40}, {0x01, 0x41},
  70                                                {0x44, 0x42}, {0x00, 0x43},
  71                                                {0x44, 0x44}, {0x00, 0x45},
  72                                                {0x44, 0x46}, {0x00, 0x47},
  73                                                {0xC7, 0x48}, {0x01, 0x49},
  74                                                {0xC7, 0x4A}, {0x01, 0x4B},
  75                                                {0xC7, 0x4C}, {0x01, 0x4D},
  76                                                {0x44, 0x4E}, {0x00, 0x4F},
  77                                                {0x44, 0x50}, {0x00, 0x51},
  78                                                {0x44, 0x52}, {0x00, 0x53},
  79                                                {0xC7, 0x54}, {0x01, 0x55},
  80                                                {0xC7, 0x56}, {0x01, 0x57},
  81                                                {0xC7, 0x58}, {0x01, 0x59},
  82                                                {0x44, 0x5A}, {0x00, 0x5B},
  83                                                {0x44, 0x5C}, {0x00, 0x5D},
  84                                                {0x44, 0x5E}, {0x00, 0x5F},
  85                                                {0xC7, 0x60}, {0x01, 0x61},
  86                                                {0xC7, 0x62}, {0x01, 0x63},
  87                                                {0xC7, 0x64}, {0x01, 0x65},
  88                                                {0x44, 0x66}, {0x00, 0x67},
  89                                                {0x44, 0x68}, {0x00, 0x69},
  90                                                {0x44, 0x6A}, {0x00, 0x6B},
  91                                                {0xC7, 0x6C}, {0x01, 0x6D},
  92                                                {0xC7, 0x6E}, {0x01, 0x6F},
  93                                                {0xC7, 0x70}, {0x01, 0x71},
  94                                                {0x44, 0x72}, {0x00, 0x73},
  95                                                {0x44, 0x74}, {0x00, 0x75},
  96                                                {0x44, 0x76}, {0x00, 0x77},
  97                                                {0xC7, 0x78}, {0x01, 0x79},
  98                                                {0xC7, 0x7A}, {0x01, 0x7B},
  99                                                {0xC7, 0x7C}, {0x01, 0x7D},
 100                                                {0x44, 0x7E}, {0x00, 0x7F},
 101                                                {0x14, 0x84}, {0x00, 0x85},
 102                                                {0x27, 0x86}, {0x00, 0x87},
 103                                                {0x07, 0x88}, {0x00, 0x89},
 104                                                {0xEC, 0x8A}, {0x0f, 0x8B},
 105                                                {0xD8, 0x8C}, {0x0f, 0x8D},
 106                                                {0x3D, 0x8E}, {0x00, 0x8F},
 107                                                {0x3D, 0x90}, {0x00, 0x91},
 108                                                {0xCD, 0x92}, {0x0f, 0x93},
 109                                                {0xf7, 0x94}, {0x0f, 0x95},
 110                                                {0x0C, 0x96}, {0x00, 0x97},
 111                                                {0x00, 0x98}, {0x66, 0x99},
 112                                                {0x05, 0x9A}, {0x00, 0x9B},
 113                                                {0x04, 0x9C}, {0x00, 0x9D},
 114                                                {0x08, 0x9E}, {0x00, 0x9F},
 115                                                {0x2D, 0xC0}, {0x2D, 0xC1},
 116                                                {0x3A, 0xC2}, {0x05, 0xC3},
 117                                                {0x04, 0xC4}, {0x3F, 0xC5},
 118                                                {0x00, 0xC6}, {0x00, 0xC7},
 119                                                {0x50, 0xC8}, {0x3C, 0xC9},
 120                                                {0x28, 0xCA}, {0xD8, 0xCB},
 121                                                {0x14, 0xCC}, {0xEC, 0xCD},
 122                                                {0x32, 0xCE}, {0xDD, 0xCF},
 123                                                {0x32, 0xD0}, {0xDD, 0xD1},
 124                                                {0x6A, 0xD2}, {0x50, 0xD3},
 125                                                {0x00, 0xD4}, {0x00, 0xD5},
 126                                                {0x00, 0xD6});
 127                 break;
 128         default:
 129                 break;
 130         }
 131
 132         err += sn9c102_i2c_write(cam, 0x20, 0x00);
 133         err += sn9c102_i2c_write(cam, 0x21, 0xd6);
 134         err += sn9c102_i2c_write(cam, 0x25, 0x06);
 135
 136         return err;
 137 }
 138
 139
 140 static int hv7131r_get_ctrl(struct sn9c102_device* cam,
 141                             struct v4l2_control* ctrl)
 142 {
 143         switch (ctrl->id) {
 144         case V4L2_CID_GAIN:
 145                 if ((ctrl->value = sn9c102_i2c_read(cam, 0x30)) < 0)
 146                         return -EIO;
 147                 return 0;
 148         case V4L2_CID_RED_BALANCE:
 149                 if ((ctrl->value = sn9c102_i2c_read(cam, 0x31)) < 0)
 150                         return -EIO;
 151                 ctrl->value = ctrl->value & 0x3f;
 152                 return 0;
 153         case V4L2_CID_BLUE_BALANCE:
 154                 if ((ctrl->value = sn9c102_i2c_read(cam, 0x33)) < 0)
 155                         return -EIO;
 156                 ctrl->value = ctrl->value & 0x3f;
 157                 return 0;
 158         case SN9C102_V4L2_CID_GREEN_BALANCE:
 159                 if ((ctrl->value = sn9c102_i2c_read(cam, 0x32)) < 0)
 160                         return -EIO;
 161                 ctrl->value = ctrl->value & 0x3f;
 162                 return 0;
 163         case V4L2_CID_BLACK_LEVEL:
 164                 if ((ctrl->value = sn9c102_i2c_read(cam, 0x01)) < 0)
 165                         return -EIO;
 166                 ctrl->value = (ctrl->value & 0x08) ? 1 : 0;
 167                 return 0;
 168         default:
 169                 return -EINVAL;
 170         }
 171 }
 172
 173
 174 static int hv7131r_set_ctrl(struct sn9c102_device* cam,
 175                             const struct v4l2_control* ctrl)
 176 {
 177         int err = 0;
 178
 179         switch (ctrl->id) {
 180         case V4L2_CID_GAIN:
 181                 err += sn9c102_i2c_write(cam, 0x30, ctrl->value);
 182                 break;
 183         case V4L2_CID_RED_BALANCE:
 184                 err += sn9c102_i2c_write(cam, 0x31, ctrl->value);
 185                 break;
 186         case V4L2_CID_BLUE_BALANCE:
 187                 err += sn9c102_i2c_write(cam, 0x33, ctrl->value);
 188                 break;
 189         case SN9C102_V4L2_CID_GREEN_BALANCE:
 190                 err += sn9c102_i2c_write(cam, 0x32, ctrl->value);
 191                 break;
 192         case V4L2_CID_BLACK_LEVEL:
 193                 {
 194                         int r = sn9c102_i2c_read(cam, 0x01);
 195                         if (r < 0)
 196                                 return -EIO;
 197                         err += sn9c102_i2c_write(cam, 0x01,
 198                                                  (ctrl->value<<3) | (r&0xf7));
 199                 }
 200                 break;
 201         default:
 202                 return -EINVAL;
 203         }
 204
 205         return err ? -EIO : 0;
 206 }
 207
 208
 209 static int hv7131r_set_crop(struct sn9c102_device* cam,
 210                             const struct v4l2_rect* rect)
 211 {
 212         struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
 213         int err = 0;
 214         u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 1,
 215            v_start = (u8)(rect->top - s->cropcap.bounds.top) + 1;
 216
 217         err += sn9c102_write_reg(cam, h_start, 0x12);
 218         err += sn9c102_write_reg(cam, v_start, 0x13);
 219
 220         return err;
 221 }
 222
 223
 224 static int hv7131r_set_pix_format(struct sn9c102_device* cam,
 225                                   const struct v4l2_pix_format* pix)
 226 {
 227         int err = 0;
 228
 229         switch (sn9c102_get_bridge(cam)) {
 230         case BRIDGE_SN9C103:
 231                 if (pix->pixelformat == V4L2_PIX_FMT_SBGGR8) {
 232                         err += sn9c102_write_reg(cam, 0xa0, 0x19);
 233                         err += sn9c102_i2c_write(cam, 0x01, 0x04);
 234                 } else {
 235                         err += sn9c102_write_reg(cam, 0x30, 0x19);
 236                         err += sn9c102_i2c_write(cam, 0x01, 0x04);
 237                 }
 238                 break;
 239         case BRIDGE_SN9C105:
 240         case BRIDGE_SN9C120:
 241                 if (pix->pixelformat == V4L2_PIX_FMT_SBGGR8) {
 242                         err += sn9c102_write_reg(cam, 0xa5, 0x17);
 243                         err += sn9c102_i2c_write(cam, 0x01, 0x24);
 244                 } else {
 245                         err += sn9c102_write_reg(cam, 0xa3, 0x17);
 246                         err += sn9c102_i2c_write(cam, 0x01, 0x04);
 247                 }
 248                 break;
 249         default:
 250                 break;
 251         }
 252
 253         return err;
 254 }
 255
 256
 257 static const struct sn9c102_sensor hv7131r = {
 258         .name = "HV7131R",
 259         .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
 260         .supported_bridge = BRIDGE_SN9C103 | BRIDGE_SN9C105 | BRIDGE_SN9C120,
 261         .sysfs_ops = SN9C102_I2C_READ | SN9C102_I2C_WRITE,
 262         .frequency = SN9C102_I2C_100KHZ,
 263         .interface = SN9C102_I2C_2WIRES,
 264         .i2c_slave_id = 0x11,
 265         .init = &hv7131r_init,
 266         .qctrl = {
 267                 {
 268                         .id = V4L2_CID_GAIN,
 269                         .type = V4L2_CTRL_TYPE_INTEGER,
 270                         .name = "global gain",
 271                         .minimum = 0x00,
 272                         .maximum = 0xff,
 273                         .step = 0x01,
 274                         .default_value = 0x40,
 275                         .flags = 0,
 276                 },
 277                 {
 278                         .id = V4L2_CID_RED_BALANCE,
 279                         .type = V4L2_CTRL_TYPE_INTEGER,
 280                         .name = "red balance",
 281                         .minimum = 0x00,
 282                         .maximum = 0x3f,
 283                         .step = 0x01,
 284                         .default_value = 0x08,
 285                         .flags = 0,
 286                 },
 287                 {
 288                         .id = V4L2_CID_BLUE_BALANCE,
 289                         .type = V4L2_CTRL_TYPE_INTEGER,
 290                         .name = "blue balance",
 291                         .minimum = 0x00,
 292                         .maximum = 0x3f,
 293                         .step = 0x01,
 294                         .default_value = 0x1a,
 295                         .flags = 0,
 296                 },
 297                 {
 298                         .id = SN9C102_V4L2_CID_GREEN_BALANCE,
 299                         .type = V4L2_CTRL_TYPE_INTEGER,
 300                         .name = "green balance",
 301                         .minimum = 0x00,
 302                         .maximum = 0x3f,
 303                         .step = 0x01,
 304                         .default_value = 0x2f,
 305                         .flags = 0,
 306                 },
 307                 {
 308                         .id = V4L2_CID_BLACK_LEVEL,
 309                         .type = V4L2_CTRL_TYPE_BOOLEAN,
 310                         .name = "auto black level compensation",
 311                         .minimum = 0x00,
 312                         .maximum = 0x01,
 313                         .step = 0x01,
 314                         .default_value = 0x00,
 315                         .flags = 0,
 316                 },
 317         },
 318         .get_ctrl = &hv7131r_get_ctrl,
 319         .set_ctrl = &hv7131r_set_ctrl,
 320         .cropcap = {
 321                 .bounds = {
 322                         .left = 0,
 323                         .top = 0,
 324                         .width = 640,
 325                         .height = 480,
 326                 },
 327                 .defrect = {
 328                         .left = 0,
 329                         .top = 0,
 330                         .width = 640,
 331                         .height = 480,
 332                 },
 333         },
 334         .set_crop = &hv7131r_set_crop,
 335         .pix_format = {
 336                 .width = 640,
 337                 .height = 480,
 338                 .pixelformat = V4L2_PIX_FMT_SBGGR8,
 339                 .priv = 8,
 340         },
 341         .set_pix_format = &hv7131r_set_pix_format
 342 };
 343
 344
 345 int sn9c102_probe_hv7131r(struct sn9c102_device* cam)
 346 {
 347         int devid, err;
 348
 349         err = sn9c102_write_const_regs(cam, {0x09, 0x01}, {0x44, 0x02},
 350                                        {0x34, 0x01}, {0x20, 0x17},
 351                                        {0x34, 0x01}, {0x46, 0x01});
 352
 353         devid = sn9c102_i2c_try_read(cam, &hv7131r, 0x00);
 354         if (err || devid < 0)
 355                 return -EIO;
 356
 357         if (devid != 0x02)
 358                 return -ENODEV;
 359
 360         sn9c102_attach_sensor(cam, &hv7131r);
 361
 362         return 0;
 363 }