linux/drivers/media/video/sn9c102/sn9c102_mt9v111.c
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   1/***************************************************************************
   2 * Plug-in for MT9V111 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 mt9v111_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, {0x44, 0x01}, {0x40, 0x02},
  32                                       {0x00, 0x03}, {0x1a, 0x04},
  33                                       {0x1f, 0x05}, {0x20, 0x06},
  34                                       {0x1f, 0x07}, {0x81, 0x08},
  35                                       {0x5c, 0x09}, {0x00, 0x0a},
  36                                       {0x00, 0x0b}, {0x00, 0x0c},
  37                                       {0x00, 0x0d}, {0x00, 0x0e},
  38                                       {0x00, 0x0f}, {0x03, 0x10},
  39                                       {0x00, 0x11}, {0x00, 0x12},
  40                                       {0x02, 0x13}, {0x14, 0x14},
  41                                       {0x28, 0x15}, {0x1e, 0x16},
  42                                       {0xe2, 0x17}, {0x06, 0x18},
  43                                       {0x00, 0x19}, {0x00, 0x1a},
  44                                       {0x00, 0x1b}, {0x08, 0x20},
  45                                       {0x39, 0x21}, {0x51, 0x22},
  46                                       {0x63, 0x23}, {0x73, 0x24},
  47                                       {0x82, 0x25}, {0x8f, 0x26},
  48                                       {0x9b, 0x27}, {0xa7, 0x28},
  49                                       {0xb1, 0x29}, {0xbc, 0x2a},
  50                                       {0xc6, 0x2b}, {0xcf, 0x2c},
  51                                       {0xd8, 0x2d}, {0xe1, 0x2e},
  52                                       {0xea, 0x2f}, {0xf2, 0x30},
  53                                       {0x13, 0x84}, {0x00, 0x85},
  54                                       {0x25, 0x86}, {0x00, 0x87},
  55                                       {0x07, 0x88}, {0x00, 0x89},
  56                                       {0xee, 0x8a}, {0x0f, 0x8b},
  57                                       {0xe5, 0x8c}, {0x0f, 0x8d},
  58                                       {0x2e, 0x8e}, {0x00, 0x8f},
  59                                       {0x30, 0x90}, {0x00, 0x91},
  60                                       {0xd4, 0x92}, {0x0f, 0x93},
  61                                       {0xfc, 0x94}, {0x0f, 0x95},
  62                                       {0x14, 0x96}, {0x00, 0x97},
  63                                       {0x00, 0x98}, {0x60, 0x99},
  64                                       {0x07, 0x9a}, {0x40, 0x9b},
  65                                       {0x20, 0x9c}, {0x00, 0x9d},
  66                                       {0x00, 0x9e}, {0x00, 0x9f},
  67                                       {0x2d, 0xc0}, {0x2d, 0xc1},
  68                                       {0x3a, 0xc2}, {0x05, 0xc3},
  69                                       {0x04, 0xc4}, {0x3f, 0xc5},
  70                                       {0x00, 0xc6}, {0x00, 0xc7},
  71                                       {0x50, 0xc8}, {0x3c, 0xc9},
  72                                       {0x28, 0xca}, {0xd8, 0xcb},
  73                                       {0x14, 0xcc}, {0xec, 0xcd},
  74                                       {0x32, 0xce}, {0xdd, 0xcf},
  75                                       {0x2d, 0xd0}, {0xdd, 0xd1},
  76                                       {0x6a, 0xd2}, {0x50, 0xd3},
  77                                       {0x60, 0xd4}, {0x00, 0xd5},
  78                                       {0x00, 0xd6});
  79
  80        err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x01,
  81                                         0x00, 0x01, 0, 0);
  82        err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x0d,
  83                                         0x00, 0x01, 0, 0);
  84        err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x0d,
  85                                         0x00, 0x00, 0, 0);
  86        err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x08,
  87                                         0x04, 0x80, 0, 0);
  88        err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x01,
  89                                         0x00, 0x04, 0, 0);
  90        err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x08,
  91                                         0x00, 0x08, 0, 0);
  92        err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x02,
  93                                         0x00, 0x16, 0, 0);
  94        err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x03,
  95                                         0x01, 0xe7, 0, 0);
  96        err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x04,
  97                                         0x02, 0x87, 0, 0);
  98        err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x06,
  99                                         0x00, 0x40, 0, 0);
 100        err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x05,
 101                                         0x00, 0x09, 0, 0);
 102        err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x07,
 103                                         0x30, 0x02, 0, 0);
 104        err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x0c,
 105                                         0x00, 0x00, 0, 0);
 106        err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x12,
 107                                         0x00, 0xb0, 0, 0);
 108        err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x13,
 109                                         0x00, 0x7c, 0, 0);
 110        err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x1e,
 111                                         0x00, 0x00, 0, 0);
 112        err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x20,
 113                                         0x00, 0x00, 0, 0);
 114        err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x20,
 115                                         0x00, 0x00, 0, 0);
 116        err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x01,
 117                                         0x00, 0x04, 0, 0);
 118
 119        return err;
 120}
 121
 122static int mt9v111_get_ctrl(struct sn9c102_device *cam,
 123                            struct v4l2_control *ctrl)
 124{
 125        struct sn9c102_sensor *s = sn9c102_get_sensor(cam);
 126        u8 data[2];
 127        int err = 0;
 128
 129        switch (ctrl->id) {
 130        case V4L2_CID_VFLIP:
 131                if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x20, 2,
 132                                             data) < 0)
 133                        return -EIO;
 134                ctrl->value = data[1] & 0x80 ? 1 : 0;
 135                return 0;
 136        default:
 137                return -EINVAL;
 138        }
 139
 140        return err ? -EIO : 0;
 141}
 142
 143static int mt9v111_set_ctrl(struct sn9c102_device *cam,
 144                            const struct v4l2_control *ctrl)
 145{
 146        struct sn9c102_sensor *s = sn9c102_get_sensor(cam);
 147        int err = 0;
 148
 149        switch (ctrl->id) {
 150        case V4L2_CID_VFLIP:
 151                err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 152                                                 0x20,
 153                                                 ctrl->value ? 0x80 : 0x00,
 154                                                 ctrl->value ? 0x80 : 0x00, 0,
 155                                                 0);
 156                break;
 157        default:
 158                return -EINVAL;
 159        }
 160
 161        return err ? -EIO : 0;
 162}
 163
 164static int mt9v111_set_crop(struct sn9c102_device *cam,
 165                            const struct v4l2_rect *rect)
 166{
 167        struct sn9c102_sensor *s = sn9c102_get_sensor(cam);
 168        int err = 0;
 169        u8 v_start = (u8) (rect->top - s->cropcap.bounds.top) + 2;
 170
 171        err += sn9c102_write_reg(cam, v_start, 0x13);
 172
 173        return err;
 174}
 175
 176static int mt9v111_set_pix_format(struct sn9c102_device *cam,
 177                                  const struct v4l2_pix_format *pix)
 178{
 179        int err = 0;
 180
 181        if (pix->pixelformat == V4L2_PIX_FMT_SBGGR8) {
 182                err += sn9c102_write_reg(cam, 0xb4, 0x17);
 183        } else {
 184                err += sn9c102_write_reg(cam, 0xe2, 0x17);
 185        }
 186
 187        return err;
 188}
 189
 190
 191static const struct sn9c102_sensor mt9v111 = {
 192        .name = "MT9V111",
 193        .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
 194        .supported_bridge = BRIDGE_SN9C105 | BRIDGE_SN9C120,
 195        .frequency = SN9C102_I2C_100KHZ,
 196        .interface = SN9C102_I2C_2WIRES,
 197        .i2c_slave_id = 0x5c,
 198        .init = &mt9v111_init,
 199        .qctrl = {
 200                {
 201                        .id = V4L2_CID_VFLIP,
 202                        .type = V4L2_CTRL_TYPE_BOOLEAN,
 203                        .name = "vertical mirror",
 204                        .minimum = 0,
 205                        .maximum = 1,
 206                        .step = 1,
 207                        .default_value = 0,
 208                        .flags = 0,
 209                },
 210        },
 211        .get_ctrl = &mt9v111_get_ctrl,
 212        .set_ctrl = &mt9v111_set_ctrl,
 213        .cropcap = {
 214                .bounds = {
 215                        .left = 0,
 216                        .top = 0,
 217                        .width = 640,
 218                        .height = 480,
 219                },
 220                .defrect = {
 221                        .left = 0,
 222                        .top = 0,
 223                        .width = 640,
 224                        .height = 480,
 225                },
 226        },
 227        .set_crop = &mt9v111_set_crop,
 228        .pix_format = {
 229                .width = 640,
 230                .height = 480,
 231                .pixelformat = V4L2_PIX_FMT_SBGGR8,
 232                .priv = 8,
 233        },
 234        .set_pix_format = &mt9v111_set_pix_format
 235};
 236
 237
 238int sn9c102_probe_mt9v111(struct sn9c102_device *cam)
 239{
 240        u8 data[2];
 241        int err = 0;
 242
 243        err += sn9c102_write_const_regs(cam, {0x01, 0xf1}, {0x00, 0xf1},
 244                                        {0x29, 0x01}, {0x42, 0x17},
 245                                        {0x62, 0x17}, {0x08, 0x01});
 246        err += sn9c102_i2c_try_raw_write(cam, &mt9v111, 4,
 247                                         mt9v111.i2c_slave_id, 0x01, 0x00,
 248                                         0x04, 0, 0);
 249        if (err || sn9c102_i2c_try_raw_read(cam, &mt9v111,
 250                                            mt9v111.i2c_slave_id, 0x36, 2,
 251                                            data) < 0)
 252                return -EIO;
 253
 254        if (data[0] != 0x82 || data[1] != 0x3a)
 255                return -ENODEV;
 256
 257        sn9c102_attach_sensor(cam, &mt9v111);
 258
 259        return 0;
 260}
 261