git.oblomov.eu Git - linux-2.6/blob - drivers/media/video/sn9c102/sn9c102_mi0343.c

   1 /***************************************************************************
   2  * Plug-in for MI-0343 image sensor connected to the SN9C1xx PC Camera     *
   3  * Controllers                                                             *
   4  *                                                                         *
   5  * Copyright (C) 2004-2007 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
  24
  25 static int mi0343_init(struct sn9c102_device* cam)
  26 {
  27         struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
  28         int err = 0;
  29
  30         err = sn9c102_write_const_regs(cam, {0x00, 0x10}, {0x00, 0x11},
  31                                        {0x0a, 0x14}, {0x40, 0x01},
  32                                        {0x20, 0x17}, {0x07, 0x18},
  33                                        {0xa0, 0x19});
  34
  35         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x0d,
  36                                          0x00, 0x01, 0, 0);
  37         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x0d,
  38                                          0x00, 0x00, 0, 0);
  39         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x03,
  40                                          0x01, 0xe1, 0, 0);
  41         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x04,
  42                                          0x02, 0x81, 0, 0);
  43         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x05,
  44                                          0x00, 0x17, 0, 0);
  45         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x06,
  46                                          0x00, 0x11, 0, 0);
  47         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x62,
  48                                          0x04, 0x9a, 0, 0);
  49
  50         return err;
  51 }
  52
  53
  54 static int mi0343_get_ctrl(struct sn9c102_device* cam,
  55                            struct v4l2_control* ctrl)
  56 {
  57         struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
  58         u8 data[2];
  59
  60         switch (ctrl->id) {
  61         case V4L2_CID_EXPOSURE:
  62                 if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x09, 2,
  63                                              data) < 0)
  64                         return -EIO;
  65                 ctrl->value = data[0];
  66                 return 0;
  67         case V4L2_CID_GAIN:
  68                 if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x35, 2,
  69                                              data) < 0)
  70                         return -EIO;
  71                 break;
  72         case V4L2_CID_HFLIP:
  73                 if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x20, 2,
  74                                              data) < 0)
  75                         return -EIO;
  76                 ctrl->value = data[1] & 0x20 ? 1 : 0;
  77                 return 0;
  78         case V4L2_CID_VFLIP:
  79                 if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x20, 2,
  80                                              data) < 0)
  81                         return -EIO;
  82                 ctrl->value = data[1] & 0x80 ? 1 : 0;
  83                 return 0;
  84         case V4L2_CID_RED_BALANCE:
  85                 if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x2d, 2,
  86                                              data) < 0)
  87                         return -EIO;
  88                 break;
  89         case V4L2_CID_BLUE_BALANCE:
  90                 if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x2c, 2,
  91                                              data) < 0)
  92                         return -EIO;
  93                 break;
  94         case SN9C102_V4L2_CID_GREEN_BALANCE:
  95                 if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x2e, 2,
  96                                              data) < 0)
  97                         return -EIO;
  98                 break;
  99         default:
 100                 return -EINVAL;
 101         }
 102
 103         switch (ctrl->id) {
 104         case V4L2_CID_GAIN:
 105         case V4L2_CID_RED_BALANCE:
 106         case V4L2_CID_BLUE_BALANCE:
 107         case SN9C102_V4L2_CID_GREEN_BALANCE:
 108                 ctrl->value = data[1] | (data[0] << 8);
 109                 if (ctrl->value >= 0x10 && ctrl->value <= 0x3f)
 110                         ctrl->value -= 0x10;
 111                 else if (ctrl->value >= 0x60 && ctrl->value <= 0x7f)
 112                         ctrl->value -= 0x60;
 113                 else if (ctrl->value >= 0xe0 && ctrl->value <= 0xff)
 114                         ctrl->value -= 0xe0;
 115         }
 116
 117         return 0;
 118 }
 119
 120
 121 static int mi0343_set_ctrl(struct sn9c102_device* cam,
 122                            const struct v4l2_control* ctrl)
 123 {
 124         struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
 125         u16 reg = 0;
 126         int err = 0;
 127
 128         switch (ctrl->id) {
 129         case V4L2_CID_GAIN:
 130         case V4L2_CID_RED_BALANCE:
 131         case V4L2_CID_BLUE_BALANCE:
 132         case SN9C102_V4L2_CID_GREEN_BALANCE:
 133                 if (ctrl->value <= (0x3f-0x10))
 134                         reg = 0x10 + ctrl->value;
 135                 else if (ctrl->value <= ((0x3f-0x10) + (0x7f-0x60)))
 136                         reg = 0x60 + (ctrl->value - (0x3f-0x10));
 137                 else
 138                         reg = 0xe0 + (ctrl->value - (0x3f-0x10) - (0x7f-0x60));
 139                 break;
 140         }
 141
 142         switch (ctrl->id) {
 143         case V4L2_CID_EXPOSURE:
 144                 err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 145                                                  0x09, ctrl->value, 0x00,
 146                                                  0, 0);
 147                 break;
 148         case V4L2_CID_GAIN:
 149                 err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 150                                                  0x35, reg >> 8, reg & 0xff,
 151                                                  0, 0);
 152                 break;
 153         case V4L2_CID_HFLIP:
 154                 err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 155                                                  0x20, ctrl->value ? 0x40:0x00,
 156                                                  ctrl->value ? 0x20:0x00,
 157                                                  0, 0);
 158                 break;
 159         case V4L2_CID_VFLIP:
 160                 err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 161                                                  0x20, ctrl->value ? 0x80:0x00,
 162                                                  ctrl->value ? 0x80:0x00,
 163                                                  0, 0);
 164                 break;
 165         case V4L2_CID_RED_BALANCE:
 166                 err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 167                                                  0x2d, reg >> 8, reg & 0xff,
 168                                                  0, 0);
 169                 break;
 170         case V4L2_CID_BLUE_BALANCE:
 171                 err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 172                                                  0x2c, reg >> 8, reg & 0xff,
 173                                                  0, 0);
 174                 break;
 175         case SN9C102_V4L2_CID_GREEN_BALANCE:
 176                 err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 177                                                  0x2b, reg >> 8, reg & 0xff,
 178                                                  0, 0);
 179                 err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 180                                                  0x2e, reg >> 8, reg & 0xff,
 181                                                  0, 0);
 182                 break;
 183         default:
 184                 return -EINVAL;
 185         }
 186
 187         return err ? -EIO : 0;
 188 }
 189
 190
 191 static int mi0343_set_crop(struct sn9c102_device* cam,
 192                             const struct v4l2_rect* rect)
 193 {
 194         struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
 195         int err = 0;
 196         u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 0,
 197            v_start = (u8)(rect->top - s->cropcap.bounds.top) + 2;
 198
 199         err += sn9c102_write_reg(cam, h_start, 0x12);
 200         err += sn9c102_write_reg(cam, v_start, 0x13);
 201
 202         return err;
 203 }
 204
 205
 206 static int mi0343_set_pix_format(struct sn9c102_device* cam,
 207                                  const struct v4l2_pix_format* pix)
 208 {
 209         struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
 210         int err = 0;
 211
 212         if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X) {
 213                 err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 214                                                  0x0a, 0x00, 0x03, 0, 0);
 215                 err += sn9c102_write_reg(cam, 0x20, 0x19);
 216         } else {
 217                 err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 218                                                  0x0a, 0x00, 0x05, 0, 0);
 219                 err += sn9c102_write_reg(cam, 0xa0, 0x19);
 220         }
 221
 222         return err;
 223 }
 224
 225
 226 static const struct sn9c102_sensor mi0343 = {
 227         .name = "MI-0343",
 228         .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
 229         .supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102,
 230         .frequency = SN9C102_I2C_100KHZ,
 231         .interface = SN9C102_I2C_2WIRES,
 232         .i2c_slave_id = 0x5d,
 233         .init = &mi0343_init,
 234         .qctrl = {
 235                 {
 236                         .id = V4L2_CID_EXPOSURE,
 237                         .type = V4L2_CTRL_TYPE_INTEGER,
 238                         .name = "exposure",
 239                         .minimum = 0x00,
 240                         .maximum = 0x0f,
 241                         .step = 0x01,
 242                         .default_value = 0x06,
 243                         .flags = 0,
 244                 },
 245                 {
 246                         .id = V4L2_CID_GAIN,
 247                         .type = V4L2_CTRL_TYPE_INTEGER,
 248                         .name = "global gain",
 249                         .minimum = 0x00,
 250                         .maximum = (0x3f-0x10)+(0x7f-0x60)+(0xff-0xe0),/*0x6d*/
 251                         .step = 0x01,
 252                         .default_value = 0x00,
 253                         .flags = 0,
 254                 },
 255                 {
 256                         .id = V4L2_CID_HFLIP,
 257                         .type = V4L2_CTRL_TYPE_BOOLEAN,
 258                         .name = "horizontal mirror",
 259                         .minimum = 0,
 260                         .maximum = 1,
 261                         .step = 1,
 262                         .default_value = 0,
 263                         .flags = 0,
 264                 },
 265                 {
 266                         .id = V4L2_CID_VFLIP,
 267                         .type = V4L2_CTRL_TYPE_BOOLEAN,
 268                         .name = "vertical mirror",
 269                         .minimum = 0,
 270                         .maximum = 1,
 271                         .step = 1,
 272                         .default_value = 0,
 273                         .flags = 0,
 274                 },
 275                 {
 276                         .id = V4L2_CID_RED_BALANCE,
 277                         .type = V4L2_CTRL_TYPE_INTEGER,
 278                         .name = "red balance",
 279                         .minimum = 0x00,
 280                         .maximum = (0x3f-0x10)+(0x7f-0x60)+(0xff-0xe0),
 281                         .step = 0x01,
 282                         .default_value = 0x00,
 283                         .flags = 0,
 284                 },
 285                 {
 286                         .id = V4L2_CID_BLUE_BALANCE,
 287                         .type = V4L2_CTRL_TYPE_INTEGER,
 288                         .name = "blue balance",
 289                         .minimum = 0x00,
 290                         .maximum = (0x3f-0x10)+(0x7f-0x60)+(0xff-0xe0),
 291                         .step = 0x01,
 292                         .default_value = 0x00,
 293                         .flags = 0,
 294                 },
 295                 {
 296                         .id = SN9C102_V4L2_CID_GREEN_BALANCE,
 297                         .type = V4L2_CTRL_TYPE_INTEGER,
 298                         .name = "green balance",
 299                         .minimum = 0x00,
 300                         .maximum = ((0x3f-0x10)+(0x7f-0x60)+(0xff-0xe0)),
 301                         .step = 0x01,
 302                         .default_value = 0x00,
 303                         .flags = 0,
 304                 },
 305         },
 306         .get_ctrl = &mi0343_get_ctrl,
 307         .set_ctrl = &mi0343_set_ctrl,
 308         .cropcap = {
 309                 .bounds = {
 310                         .left = 0,
 311                         .top = 0,
 312                         .width = 640,
 313                         .height = 480,
 314                 },
 315                 .defrect = {
 316                         .left = 0,
 317                         .top = 0,
 318                         .width = 640,
 319                         .height = 480,
 320                 },
 321         },
 322         .set_crop = &mi0343_set_crop,
 323         .pix_format = {
 324                 .width = 640,
 325                 .height = 480,
 326                 .pixelformat = V4L2_PIX_FMT_SBGGR8,
 327                 .priv = 8,
 328         },
 329         .set_pix_format = &mi0343_set_pix_format
 330 };
 331
 332
 333 int sn9c102_probe_mi0343(struct sn9c102_device* cam)
 334 {
 335         u8 data[2];
 336
 337         if (sn9c102_write_const_regs(cam, {0x01, 0x01}, {0x00, 0x01},
 338                                      {0x28, 0x17}))
 339                 return -EIO;
 340
 341         if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id, 0x00,
 342                                      2, data) < 0)
 343                 return -EIO;
 344
 345         if (data[1] != 0x42 || data[0] != 0xe3)
 346                 return -ENODEV;
 347
 348         sn9c102_attach_sensor(cam, &mi0343);
 349
 350         return 0;
 351 }