drivers/media/video/sn9c102/sn9c102_ov7630.c

   1 /***************************************************************************
   2  * Plug-in for OV7630 image sensor connected to the SN9C10x PC Camera      *
   3  * Controllers                                                             *
   4  *                                                                         *
   5  * Copyright (C) 2005-2006 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
  24
  25 static struct sn9c102_sensor ov7630;
  26
  27
  28 static int ov7630_init(struct sn9c102_device* cam)
  29 {
  30         int err = 0;
  31
  32         err += sn9c102_write_reg(cam, 0x00, 0x14);
  33         err += sn9c102_write_reg(cam, 0x60, 0x17);
  34         err += sn9c102_write_reg(cam, 0x0f, 0x18);
  35         err += sn9c102_write_reg(cam, 0x50, 0x19);
  36
  37         err += sn9c102_i2c_write(cam, 0x12, 0x80);
  38         err += sn9c102_i2c_write(cam, 0x11, 0x01);
  39         err += sn9c102_i2c_write(cam, 0x15, 0x34);
  40         err += sn9c102_i2c_write(cam, 0x16, 0x03);
  41         err += sn9c102_i2c_write(cam, 0x17, 0x1c);
  42         err += sn9c102_i2c_write(cam, 0x18, 0xbd);
  43         err += sn9c102_i2c_write(cam, 0x19, 0x06);
  44         err += sn9c102_i2c_write(cam, 0x1a, 0xf6);
  45         err += sn9c102_i2c_write(cam, 0x1b, 0x04);
  46         err += sn9c102_i2c_write(cam, 0x20, 0xf6);
  47         err += sn9c102_i2c_write(cam, 0x23, 0xee);
  48         err += sn9c102_i2c_write(cam, 0x26, 0xa0);
  49         err += sn9c102_i2c_write(cam, 0x27, 0x9a);
  50         err += sn9c102_i2c_write(cam, 0x28, 0xa0);
  51         err += sn9c102_i2c_write(cam, 0x29, 0x30);
  52         err += sn9c102_i2c_write(cam, 0x2a, 0xa0);
  53         err += sn9c102_i2c_write(cam, 0x2b, 0x1f);
  54         err += sn9c102_i2c_write(cam, 0x2f, 0x3d);
  55         err += sn9c102_i2c_write(cam, 0x30, 0x24);
  56         err += sn9c102_i2c_write(cam, 0x32, 0x86);
  57         err += sn9c102_i2c_write(cam, 0x60, 0xa9);
  58         err += sn9c102_i2c_write(cam, 0x61, 0x42);
  59         err += sn9c102_i2c_write(cam, 0x65, 0x00);
  60         err += sn9c102_i2c_write(cam, 0x69, 0x38);
  61         err += sn9c102_i2c_write(cam, 0x6f, 0x88);
  62         err += sn9c102_i2c_write(cam, 0x70, 0x0b);
  63         err += sn9c102_i2c_write(cam, 0x71, 0x00);
  64         err += sn9c102_i2c_write(cam, 0x74, 0x21);
  65         err += sn9c102_i2c_write(cam, 0x7d, 0xf7);
  66
  67         return err;
  68 }
  69
  70
  71 static int ov7630_set_ctrl(struct sn9c102_device* cam,
  72                            const struct v4l2_control* ctrl)
  73 {
  74         int err = 0;
  75
  76         switch (ctrl->id) {
  77         case V4L2_CID_EXPOSURE:
  78                 err += sn9c102_i2c_write(cam, 0x10, ctrl->value >> 2);
  79                 err += sn9c102_i2c_write(cam, 0x76, ctrl->value & 0x03);
  80                 break;
  81         case V4L2_CID_RED_BALANCE:
  82                 err += sn9c102_i2c_write(cam, 0x02, ctrl->value);
  83                 break;
  84         case V4L2_CID_BLUE_BALANCE:
  85                 err += sn9c102_i2c_write(cam, 0x01, ctrl->value);
  86                 break;
  87         case V4L2_CID_GAIN:
  88                 err += sn9c102_i2c_write(cam, 0x00, ctrl->value);
  89                 break;
  90         case V4L2_CID_CONTRAST:
  91                 err += ctrl->value ? sn9c102_i2c_write(cam, 0x05,
  92                                                        (ctrl->value-1) | 0x20)
  93                                    : sn9c102_i2c_write(cam, 0x05, 0x00);
  94                 break;
  95         case V4L2_CID_BRIGHTNESS:
  96                 err += sn9c102_i2c_write(cam, 0x06, ctrl->value);
  97                 break;
  98         case V4L2_CID_SATURATION:
  99                 err += sn9c102_i2c_write(cam, 0x03, ctrl->value << 4);
 100                 break;
 101         case V4L2_CID_HUE:
 102                 err += ctrl->value ? sn9c102_i2c_write(cam, 0x04,
 103                                                        (ctrl->value-1) | 0x20)
 104                                    : sn9c102_i2c_write(cam, 0x04, 0x00);
 105                 break;
 106         case V4L2_CID_DO_WHITE_BALANCE:
 107                 err += sn9c102_i2c_write(cam, 0x0c, ctrl->value);
 108                 break;
 109         case V4L2_CID_WHITENESS:
 110                 err += sn9c102_i2c_write(cam, 0x0d, ctrl->value);
 111                 break;
 112         case V4L2_CID_AUTO_WHITE_BALANCE:
 113                 err += sn9c102_i2c_write(cam, 0x12, (ctrl->value << 2) | 0x78);
 114                 break;
 115         case V4L2_CID_AUTOGAIN:
 116                 err += sn9c102_i2c_write(cam, 0x13, ctrl->value);
 117                 break;
 118         case V4L2_CID_VFLIP:
 119                 err += sn9c102_i2c_write(cam, 0x75, 0x0e | (ctrl->value << 7));
 120                 break;
 121         case V4L2_CID_BLACK_LEVEL:
 122                 err += sn9c102_i2c_write(cam, 0x25, ctrl->value);
 123                 break;
 124         case SN9C102_V4L2_CID_BRIGHT_LEVEL:
 125                 err += sn9c102_i2c_write(cam, 0x24, ctrl->value);
 126                 break;
 127         case SN9C102_V4L2_CID_GAMMA:
 128                 err += sn9c102_i2c_write(cam, 0x14, (ctrl->value << 2) | 0x80);
 129                 break;
 130         case SN9C102_V4L2_CID_BAND_FILTER:
 131                 err += sn9c102_i2c_write(cam, 0x2d, ctrl->value << 2);
 132                 break;
 133         default:
 134                 return -EINVAL;
 135         }
 136
 137         return err ? -EIO : 0;
 138 }
 139
 140
 141 static int ov7630_set_crop(struct sn9c102_device* cam,
 142                            const struct v4l2_rect* rect)
 143 {
 144         struct sn9c102_sensor* s = &ov7630;
 145         int err = 0;
 146         u8 v_start = (u8)(rect->top - s->cropcap.bounds.top) + 1;
 147
 148         err += sn9c102_write_reg(cam, v_start, 0x13);
 149
 150         return err;
 151 }
 152
 153
 154 static int ov7630_set_pix_format(struct sn9c102_device* cam,
 155                                  const struct v4l2_pix_format* pix)
 156 {
 157         int err = 0;
 158
 159         if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
 160                 err += sn9c102_write_reg(cam, 0x20, 0x19);
 161         else
 162                 err += sn9c102_write_reg(cam, 0x50, 0x19);
 163
 164         return err;
 165 }
 166
 167
 168 static struct sn9c102_sensor ov7630 = {
 169         .name = "OV7630",
 170         .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
 171         .sysfs_ops = SN9C102_I2C_WRITE,
 172         .frequency = SN9C102_I2C_100KHZ,
 173         .interface = SN9C102_I2C_2WIRES,
 174         .i2c_slave_id = 0x21,
 175         .init = &ov7630_init,
 176         .qctrl = {
 177                 {
 178                         .id = V4L2_CID_GAIN,
 179                         .type = V4L2_CTRL_TYPE_INTEGER,
 180                         .name = "global gain",
 181                         .minimum = 0x00,
 182                         .maximum = 0x3f,
 183                         .step = 0x01,
 184                         .default_value = 0x14,
 185                         .flags = 0,
 186                 },
 187                 {
 188                         .id = V4L2_CID_HUE,
 189                         .type = V4L2_CTRL_TYPE_INTEGER,
 190                         .name = "hue",
 191                         .minimum = 0x00,
 192                         .maximum = 0x1f+1,
 193                         .step = 0x01,
 194                         .default_value = 0x00,
 195                         .flags = 0,
 196                 },
 197                 {
 198                         .id = V4L2_CID_SATURATION,
 199                         .type = V4L2_CTRL_TYPE_INTEGER,
 200                         .name = "saturation",
 201                         .minimum = 0x00,
 202                         .maximum = 0x0f,
 203                         .step = 0x01,
 204                         .default_value = 0x08,
 205                         .flags = 0,
 206                 },
 207                 {
 208                         .id = V4L2_CID_CONTRAST,
 209                         .type = V4L2_CTRL_TYPE_INTEGER,
 210                         .name = "contrast",
 211                         .minimum = 0x00,
 212                         .maximum = 0x1f+1,
 213                         .step = 0x01,
 214                         .default_value = 0x00,
 215                         .flags = 0,
 216                 },
 217                 {
 218                         .id = V4L2_CID_EXPOSURE,
 219                         .type = V4L2_CTRL_TYPE_INTEGER,
 220                         .name = "exposure",
 221                         .minimum = 0x000,
 222                         .maximum = 0x3ff,
 223                         .step = 0x001,
 224                         .default_value = 0x83<<2,
 225                         .flags = 0,
 226                 },
 227                 {
 228                         .id = V4L2_CID_RED_BALANCE,
 229                         .type = V4L2_CTRL_TYPE_INTEGER,
 230                         .name = "red balance",
 231                         .minimum = 0x00,
 232                         .maximum = 0xff,
 233                         .step = 0x01,
 234                         .default_value = 0x3a,
 235                         .flags = 0,
 236                 },
 237                 {
 238                         .id = V4L2_CID_BLUE_BALANCE,
 239                         .type = V4L2_CTRL_TYPE_INTEGER,
 240                         .name = "blue balance",
 241                         .minimum = 0x00,
 242                         .maximum = 0xff,
 243                         .step = 0x01,
 244                         .default_value = 0x77,
 245                         .flags = 0,
 246                 },
 247                 {
 248                         .id = V4L2_CID_BRIGHTNESS,
 249                         .type = V4L2_CTRL_TYPE_INTEGER,
 250                         .name = "brightness",
 251                         .minimum = 0x00,
 252                         .maximum = 0xff,
 253                         .step = 0x01,
 254                         .default_value = 0xa0,
 255                         .flags = 0,
 256                 },
 257                 {
 258                         .id = V4L2_CID_DO_WHITE_BALANCE,
 259                         .type = V4L2_CTRL_TYPE_INTEGER,
 260                         .name = "white balance background: blue",
 261                         .minimum = 0x00,
 262                         .maximum = 0x3f,
 263                         .step = 0x01,
 264                         .default_value = 0x20,
 265                         .flags = 0,
 266                 },
 267                 {
 268                         .id = V4L2_CID_WHITENESS,
 269                         .type = V4L2_CTRL_TYPE_INTEGER,
 270                         .name = "white balance background: red",
 271                         .minimum = 0x00,
 272                         .maximum = 0x3f,
 273                         .step = 0x01,
 274                         .default_value = 0x20,
 275                         .flags = 0,
 276                 },
 277                 {
 278                         .id = V4L2_CID_AUTO_WHITE_BALANCE,
 279                         .type = V4L2_CTRL_TYPE_BOOLEAN,
 280                         .name = "auto white balance",
 281                         .minimum = 0x00,
 282                         .maximum = 0x01,
 283                         .step = 0x01,
 284                         .default_value = 0x01,
 285                         .flags = 0,
 286                 },
 287                 {
 288                         .id = V4L2_CID_AUTOGAIN,
 289                         .type = V4L2_CTRL_TYPE_INTEGER,
 290                         .name = "gain & exposure mode",
 291                         .minimum = 0x00,
 292                         .maximum = 0x03,
 293                         .step = 0x01,
 294                         .default_value = 0x00,
 295                         .flags = 0,
 296                 },
 297                 {
 298                         .id = V4L2_CID_VFLIP,
 299                         .type = V4L2_CTRL_TYPE_BOOLEAN,
 300                         .name = "vertical flip",
 301                         .minimum = 0x00,
 302                         .maximum = 0x01,
 303                         .step = 0x01,
 304                         .default_value = 0x01,
 305                         .flags = 0,
 306                 },
 307                 {
 308                         .id = V4L2_CID_BLACK_LEVEL,
 309                         .type = V4L2_CTRL_TYPE_INTEGER,
 310                         .name = "black pixel ratio",
 311                         .minimum = 0x01,
 312                         .maximum = 0x9a,
 313                         .step = 0x01,
 314                         .default_value = 0x8a,
 315                         .flags = 0,
 316                 },
 317                 {
 318                         .id = SN9C102_V4L2_CID_BRIGHT_LEVEL,
 319                         .type = V4L2_CTRL_TYPE_INTEGER,
 320                         .name = "bright pixel ratio",
 321                         .minimum = 0x01,
 322                         .maximum = 0x9a,
 323                         .step = 0x01,
 324                         .default_value = 0x10,
 325                         .flags = 0,
 326                 },
 327                 {
 328                         .id = SN9C102_V4L2_CID_BAND_FILTER,
 329                         .type = V4L2_CTRL_TYPE_BOOLEAN,
 330                         .name = "band filter",
 331                         .minimum = 0x00,
 332                         .maximum = 0x01,
 333                         .step = 0x01,
 334                         .default_value = 0x00,
 335                         .flags = 0,
 336                 },
 337                 {
 338                         .id = SN9C102_V4L2_CID_GAMMA,
 339                         .type = V4L2_CTRL_TYPE_BOOLEAN,
 340                         .name = "rgb gamma",
 341                         .minimum = 0x00,
 342                         .maximum = 0x01,
 343                         .step = 0x01,
 344                         .default_value = 0x00,
 345                         .flags = 0,
 346                 },
 347         },
 348         .set_ctrl = &ov7630_set_ctrl,
 349         .cropcap = {
 350                 .bounds = {
 351                         .left = 0,
 352                         .top = 0,
 353                         .width = 640,
 354                         .height = 480,
 355                 },
 356                 .defrect = {
 357                         .left = 0,
 358                         .top = 0,
 359                         .width = 640,
 360                         .height = 480,
 361                 },
 362         },
 363         .set_crop = &ov7630_set_crop,
 364         .pix_format = {
 365                 .width = 640,
 366                 .height = 480,
 367                 .pixelformat = V4L2_PIX_FMT_SBGGR8,
 368                 .priv = 8,
 369         },
 370         .set_pix_format = &ov7630_set_pix_format
 371 };
 372
 373
 374 int sn9c102_probe_ov7630(struct sn9c102_device* cam)
 375 {
 376         const struct usb_device_id ov7630_id_table[] = {
 377                 { USB_DEVICE(0x0c45, 0x602c), },
 378                 { USB_DEVICE(0x0c45, 0x602d), },
 379                 { USB_DEVICE(0x0c45, 0x608f), },
 380                 { USB_DEVICE(0x0c45, 0x60b0), },
 381                 { }
 382         };
 383         int err = 0;
 384
 385         if (!sn9c102_match_id(cam, ov7630_id_table))
 386                 return -ENODEV;
 387
 388         err += sn9c102_write_reg(cam, 0x01, 0x01);
 389         err += sn9c102_write_reg(cam, 0x00, 0x01);
 390         err += sn9c102_write_reg(cam, 0x28, 0x17);
 391         if (err)
 392                 return -EIO;
 393
 394         err += sn9c102_i2c_try_write(cam, &ov7630, 0x0b, 0);
 395         if (err)
 396                 return -ENODEV;
 397
 398         sn9c102_attach_sensor(cam, &ov7630);
 399
 400         return 0;
 401 }