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 #include "sn9c102_devtable.h"
  24
  25
  26 static int mi0343_init(struct sn9c102_device* cam)
  27 {
  28         struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
  29         int err = 0;
  30
  31         err = sn9c102_write_const_regs(cam, {0x00, 0x10}, {0x00, 0x11},
  32                                        {0x0a, 0x14}, {0x40, 0x01},
  33                                        {0x20, 0x17}, {0x07, 0x18},
  34                                        {0xa0, 0x19});
  35
  36         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x0d,
  37                                          0x00, 0x01, 0, 0);
  38         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x0d,
  39                                          0x00, 0x00, 0, 0);
  40         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x03,
  41                                          0x01, 0xe1, 0, 0);
  42         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x04,
  43                                          0x02, 0x81, 0, 0);
  44         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x05,
  45                                          0x00, 0x17, 0, 0);
  46         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x06,
  47                                          0x00, 0x11, 0, 0);
  48         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x62,
  49                                          0x04, 0x9a, 0, 0);
  50
  51         return err;
  52 }
  53
  54
  55 static int mi0343_get_ctrl(struct sn9c102_device* cam,
  56                            struct v4l2_control* ctrl)
  57 {
  58         struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
  59         u8 data[2];
  60
  61         switch (ctrl->id) {
  62         case V4L2_CID_EXPOSURE:
  63                 if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x09, 2,
  64                                              data) < 0)
  65                         return -EIO;
  66                 ctrl->value = data[0];
  67                 return 0;
  68         case V4L2_CID_GAIN:
  69                 if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x35, 2,
  70                                              data) < 0)
  71                         return -EIO;
  72                 break;
  73         case V4L2_CID_HFLIP:
  74                 if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x20, 2,
  75                                              data) < 0)
  76                         return -EIO;
  77                 ctrl->value = data[1] & 0x20 ? 1 : 0;
  78                 return 0;
  79         case V4L2_CID_VFLIP:
  80                 if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x20, 2,
  81                                              data) < 0)
  82                         return -EIO;
  83                 ctrl->value = data[1] & 0x80 ? 1 : 0;
  84                 return 0;
  85         case V4L2_CID_RED_BALANCE:
  86                 if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x2d, 2,
  87                                              data) < 0)
  88                         return -EIO;
  89                 break;
  90         case V4L2_CID_BLUE_BALANCE:
  91                 if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x2c, 2,
  92                                              data) < 0)
  93                         return -EIO;
  94                 break;
  95         case SN9C102_V4L2_CID_GREEN_BALANCE:
  96                 if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x2e, 2,
  97                                              data) < 0)
  98                         return -EIO;
  99                 break;
 100         default:
 101                 return -EINVAL;
 102         }
 103
 104         switch (ctrl->id) {
 105         case V4L2_CID_GAIN:
 106         case V4L2_CID_RED_BALANCE:
 107         case V4L2_CID_BLUE_BALANCE:
 108         case SN9C102_V4L2_CID_GREEN_BALANCE:
 109                 ctrl->value = data[1] | (data[0] << 8);
 110                 if (ctrl->value >= 0x10 && ctrl->value <= 0x3f)
 111                         ctrl->value -= 0x10;
 112                 else if (ctrl->value >= 0x60 && ctrl->value <= 0x7f)
 113                         ctrl->value -= 0x60;
 114                 else if (ctrl->value >= 0xe0 && ctrl->value <= 0xff)
 115                         ctrl->value -= 0xe0;
 116         }
 117
 118         return 0;
 119 }
 120
 121
 122 static int mi0343_set_ctrl(struct sn9c102_device* cam,
 123                            const struct v4l2_control* ctrl)
 124 {
 125         struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
 126         u16 reg = 0;
 127         int err = 0;
 128
 129         switch (ctrl->id) {
 130         case V4L2_CID_GAIN:
 131         case V4L2_CID_RED_BALANCE:
 132         case V4L2_CID_BLUE_BALANCE:
 133         case SN9C102_V4L2_CID_GREEN_BALANCE:
 134                 if (ctrl->value <= (0x3f-0x10))
 135                         reg = 0x10 + ctrl->value;
 136                 else if (ctrl->value <= ((0x3f-0x10) + (0x7f-0x60)))
 137                         reg = 0x60 + (ctrl->value - (0x3f-0x10));
 138                 else
 139                         reg = 0xe0 + (ctrl->value - (0x3f-0x10) - (0x7f-0x60));
 140                 break;
 141         }
 142
 143         switch (ctrl->id) {
 144         case V4L2_CID_EXPOSURE:
 145                 err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 146                                                  0x09, ctrl->value, 0x00,
 147                                                  0, 0);
 148                 break;
 149         case V4L2_CID_GAIN:
 150                 err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 151                                                  0x35, reg >> 8, reg & 0xff,
 152                                                  0, 0);
 153                 break;
 154         case V4L2_CID_HFLIP:
 155                 err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 156                                                  0x20, ctrl->value ? 0x40:0x00,
 157                                                  ctrl->value ? 0x20:0x00,
 158                                                  0, 0);
 159                 break;
 160         case V4L2_CID_VFLIP:
 161                 err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 162                                                  0x20, ctrl->value ? 0x80:0x00,
 163                                                  ctrl->value ? 0x80:0x00,
 164                                                  0, 0);
 165                 break;
 166         case V4L2_CID_RED_BALANCE:
 167                 err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 168                                                  0x2d, reg >> 8, reg & 0xff,
 169                                                  0, 0);
 170                 break;
 171         case V4L2_CID_BLUE_BALANCE:
 172                 err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 173                                                  0x2c, reg >> 8, reg & 0xff,
 174                                                  0, 0);
 175                 break;
 176         case SN9C102_V4L2_CID_GREEN_BALANCE:
 177                 err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 178                                                  0x2b, reg >> 8, reg & 0xff,
 179                                                  0, 0);
 180                 err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 181                                                  0x2e, reg >> 8, reg & 0xff,
 182                                                  0, 0);
 183                 break;
 184         default:
 185                 return -EINVAL;
 186         }
 187
 188         return err ? -EIO : 0;
 189 }
 190
 191
 192 static int mi0343_set_crop(struct sn9c102_device* cam,
 193                             const struct v4l2_rect* rect)
 194 {
 195         struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
 196         int err = 0;
 197         u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 0,
 198            v_start = (u8)(rect->top - s->cropcap.bounds.top) + 2;
 199
 200         err += sn9c102_write_reg(cam, h_start, 0x12);
 201         err += sn9c102_write_reg(cam, v_start, 0x13);
 202
 203         return err;
 204 }
 205
 206
 207 static int mi0343_set_pix_format(struct sn9c102_device* cam,
 208                                  const struct v4l2_pix_format* pix)
 209 {
 210         struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
 211         int err = 0;
 212
 213         if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X) {
 214                 err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 215                                                  0x0a, 0x00, 0x03, 0, 0);
 216                 err += sn9c102_write_reg(cam, 0x20, 0x19);
 217         } else {
 218                 err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 219                                                  0x0a, 0x00, 0x05, 0, 0);
 220                 err += sn9c102_write_reg(cam, 0xa0, 0x19);
 221         }
 222
 223         return err;
 224 }
 225
 226
 227 static const struct sn9c102_sensor mi0343 = {
 228         .name = "MI-0343",
 229         .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
 230         .supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102,
 231         .frequency = SN9C102_I2C_100KHZ,
 232         .interface = SN9C102_I2C_2WIRES,
 233         .i2c_slave_id = 0x5d,
 234         .init = &mi0343_init,
 235         .qctrl = {
 236                 {
 237                         .id = V4L2_CID_EXPOSURE,
 238                         .type = V4L2_CTRL_TYPE_INTEGER,
 239                         .name = "exposure",
 240                         .minimum = 0x00,
 241                         .maximum = 0x0f,
 242                         .step = 0x01,
 243                         .default_value = 0x06,
 244                         .flags = 0,
 245                 },
 246                 {
 247                         .id = V4L2_CID_GAIN,
 248                         .type = V4L2_CTRL_TYPE_INTEGER,
 249                         .name = "global gain",
 250                         .minimum = 0x00,
 251                         .maximum = (0x3f-0x10)+(0x7f-0x60)+(0xff-0xe0),/*0x6d*/
 252                         .step = 0x01,
 253                         .default_value = 0x00,
 254                         .flags = 0,
 255                 },
 256                 {
 257                         .id = V4L2_CID_HFLIP,
 258                         .type = V4L2_CTRL_TYPE_BOOLEAN,
 259                         .name = "horizontal mirror",
 260                         .minimum = 0,
 261                         .maximum = 1,
 262                         .step = 1,
 263                         .default_value = 0,
 264                         .flags = 0,
 265                 },
 266                 {
 267                         .id = V4L2_CID_VFLIP,
 268                         .type = V4L2_CTRL_TYPE_BOOLEAN,
 269                         .name = "vertical mirror",
 270                         .minimum = 0,
 271                         .maximum = 1,
 272                         .step = 1,
 273                         .default_value = 0,
 274                         .flags = 0,
 275                 },
 276                 {
 277                         .id = V4L2_CID_RED_BALANCE,
 278                         .type = V4L2_CTRL_TYPE_INTEGER,
 279                         .name = "red balance",
 280                         .minimum = 0x00,
 281                         .maximum = (0x3f-0x10)+(0x7f-0x60)+(0xff-0xe0),
 282                         .step = 0x01,
 283                         .default_value = 0x00,
 284                         .flags = 0,
 285                 },
 286                 {
 287                         .id = V4L2_CID_BLUE_BALANCE,
 288                         .type = V4L2_CTRL_TYPE_INTEGER,
 289                         .name = "blue balance",
 290                         .minimum = 0x00,
 291                         .maximum = (0x3f-0x10)+(0x7f-0x60)+(0xff-0xe0),
 292                         .step = 0x01,
 293                         .default_value = 0x00,
 294                         .flags = 0,
 295                 },
 296                 {
 297                         .id = SN9C102_V4L2_CID_GREEN_BALANCE,
 298                         .type = V4L2_CTRL_TYPE_INTEGER,
 299                         .name = "green balance",
 300                         .minimum = 0x00,
 301                         .maximum = ((0x3f-0x10)+(0x7f-0x60)+(0xff-0xe0)),
 302                         .step = 0x01,
 303                         .default_value = 0x00,
 304                         .flags = 0,
 305                 },
 306         },
 307         .get_ctrl = &mi0343_get_ctrl,
 308         .set_ctrl = &mi0343_set_ctrl,
 309         .cropcap = {
 310                 .bounds = {
 311                         .left = 0,
 312                         .top = 0,
 313                         .width = 640,
 314                         .height = 480,
 315                 },
 316                 .defrect = {
 317                         .left = 0,
 318                         .top = 0,
 319                         .width = 640,
 320                         .height = 480,
 321                 },
 322         },
 323         .set_crop = &mi0343_set_crop,
 324         .pix_format = {
 325                 .width = 640,
 326                 .height = 480,
 327                 .pixelformat = V4L2_PIX_FMT_SBGGR8,
 328                 .priv = 8,
 329         },
 330         .set_pix_format = &mi0343_set_pix_format
 331 };
 332
 333
 334 int sn9c102_probe_mi0343(struct sn9c102_device* cam)
 335 {
 336         u8 data[2];
 337
 338         if (sn9c102_write_const_regs(cam, {0x01, 0x01}, {0x00, 0x01},
 339                                      {0x28, 0x17}))
 340                 return -EIO;
 341
 342         if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id, 0x00,
 343                                      2, data) < 0)
 344                 return -EIO;
 345
 346         if (data[1] != 0x42 || data[0] != 0xe3)
 347                 return -ENODEV;
 348
 349         sn9c102_attach_sensor(cam, &mi0343);
 350
 351         return 0;
 352 }