git.oblomov.eu Git - linux-2.6/blob - drivers/media/video/sn9c102/sn9c102_mt9v111.c

   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
  24
  25 static int mt9v111_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, {0x44, 0x01}, {0x40, 0x02},
  31                                        {0x00, 0x03}, {0x1a, 0x04},
  32                                        {0x1f, 0x05}, {0x20, 0x06},
  33                                        {0x1f, 0x07}, {0x81, 0x08},
  34                                        {0x5c, 0x09}, {0x00, 0x0a},
  35                                        {0x00, 0x0b}, {0x00, 0x0c},
  36                                        {0x00, 0x0d}, {0x00, 0x0e},
  37                                        {0x00, 0x0f}, {0x03, 0x10},
  38                                        {0x00, 0x11}, {0x00, 0x12},
  39                                        {0x02, 0x13}, {0x14, 0x14},
  40                                        {0x28, 0x15}, {0x1e, 0x16},
  41                                        {0xe2, 0x17}, {0x06, 0x18},
  42                                        {0x00, 0x19}, {0x00, 0x1a},
  43                                        {0x00, 0x1b}, {0x08, 0x20},
  44                                        {0x39, 0x21}, {0x51, 0x22},
  45                                        {0x63, 0x23}, {0x73, 0x24},
  46                                        {0x82, 0x25}, {0x8f, 0x26},
  47                                        {0x9b, 0x27}, {0xa7, 0x28},
  48                                        {0xb1, 0x29}, {0xbc, 0x2a},
  49                                        {0xc6, 0x2b}, {0xcf, 0x2c},
  50                                        {0xd8, 0x2d}, {0xe1, 0x2e},
  51                                        {0xea, 0x2f}, {0xf2, 0x30},
  52                                        {0x13, 0x84}, {0x00, 0x85},
  53                                        {0x25, 0x86}, {0x00, 0x87},
  54                                        {0x07, 0x88}, {0x00, 0x89},
  55                                        {0xee, 0x8a}, {0x0f, 0x8b},
  56                                        {0xe5, 0x8c}, {0x0f, 0x8d},
  57                                        {0x2e, 0x8e}, {0x00, 0x8f},
  58                                        {0x30, 0x90}, {0x00, 0x91},
  59                                        {0xd4, 0x92}, {0x0f, 0x93},
  60                                        {0xfc, 0x94}, {0x0f, 0x95},
  61                                        {0x14, 0x96}, {0x00, 0x97},
  62                                        {0x00, 0x98}, {0x60, 0x99},
  63                                        {0x07, 0x9a}, {0x40, 0x9b},
  64                                        {0x20, 0x9c}, {0x00, 0x9d},
  65                                        {0x00, 0x9e}, {0x00, 0x9f},
  66                                        {0x2d, 0xc0}, {0x2d, 0xc1},
  67                                        {0x3a, 0xc2}, {0x05, 0xc3},
  68                                        {0x04, 0xc4}, {0x3f, 0xc5},
  69                                        {0x00, 0xc6}, {0x00, 0xc7},
  70                                        {0x50, 0xc8}, {0x3c, 0xc9},
  71                                        {0x28, 0xca}, {0xd8, 0xcb},
  72                                        {0x14, 0xcc}, {0xec, 0xcd},
  73                                        {0x32, 0xce}, {0xdd, 0xcf},
  74                                        {0x2d, 0xd0}, {0xdd, 0xd1},
  75                                        {0x6a, 0xd2}, {0x50, 0xd3},
  76                                        {0x60, 0xd4}, {0x00, 0xd5},
  77                                        {0x00, 0xd6});
  78
  79         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x01,
  80                                          0x00, 0x01, 0, 0);
  81         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x0d,
  82                                          0x00, 0x01, 0, 0);
  83         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x0d,
  84                                          0x00, 0x00, 0, 0);
  85         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x08,
  86                                          0x04, 0x80, 0, 0);
  87         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x01,
  88                                          0x00, 0x04, 0, 0);
  89         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x08,
  90                                          0x00, 0x08, 0, 0);
  91         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x02,
  92                                          0x00, 0x16, 0, 0);
  93         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x03,
  94                                          0x01, 0xe7, 0, 0);
  95         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x04,
  96                                          0x02, 0x87, 0, 0);
  97         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x06,
  98                                          0x00, 0x40, 0, 0);
  99         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x05,
 100                                          0x00, 0x09, 0, 0);
 101         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x07,
 102                                          0x30, 0x02, 0, 0);
 103         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x0c,
 104                                          0x00, 0x00, 0, 0);
 105         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x12,
 106                                          0x00, 0xb0, 0, 0);
 107         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x13,
 108                                          0x00, 0x7c, 0, 0);
 109         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x1e,
 110                                          0x00, 0x00, 0, 0);
 111         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x20,
 112                                          0x00, 0x00, 0, 0);
 113         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x20,
 114                                          0x00, 0x00, 0, 0);
 115         err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x01,
 116                                          0x00, 0x04, 0, 0);
 117
 118         return err;
 119 }
 120
 121 static int mt9v111_get_ctrl(struct sn9c102_device *cam,
 122                             struct v4l2_control *ctrl)
 123 {
 124         struct sn9c102_sensor *s = sn9c102_get_sensor(cam);
 125         u8 data[2];
 126         int err = 0;
 127
 128         switch (ctrl->id) {
 129         case V4L2_CID_VFLIP:
 130                 if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x20, 2,
 131                                              data) < 0)
 132                         return -EIO;
 133                 ctrl->value = data[1] & 0x80 ? 1 : 0;
 134                 return 0;
 135         default:
 136                 return -EINVAL;
 137         }
 138
 139         return err ? -EIO : 0;
 140 }
 141
 142 static int mt9v111_set_ctrl(struct sn9c102_device *cam,
 143                             const struct v4l2_control *ctrl)
 144 {
 145         struct sn9c102_sensor *s = sn9c102_get_sensor(cam);
 146         int err = 0;
 147
 148         switch (ctrl->id) {
 149         case V4L2_CID_VFLIP:
 150                 err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
 151                                                  0x20,
 152                                                  ctrl->value ? 0x80 : 0x00,
 153                                                  ctrl->value ? 0x80 : 0x00, 0,
 154                                                  0);
 155                 break;
 156         default:
 157                 return -EINVAL;
 158         }
 159
 160         return err ? -EIO : 0;
 161 }
 162
 163 static int mt9v111_set_crop(struct sn9c102_device *cam,
 164                             const struct v4l2_rect *rect)
 165 {
 166         struct sn9c102_sensor *s = sn9c102_get_sensor(cam);
 167         int err = 0;
 168         u8 v_start = (u8) (rect->top - s->cropcap.bounds.top) + 2;
 169
 170         err += sn9c102_write_reg(cam, v_start, 0x13);
 171
 172         return err;
 173 }
 174
 175 static int mt9v111_set_pix_format(struct sn9c102_device *cam,
 176                                   const struct v4l2_pix_format *pix)
 177 {
 178         int err = 0;
 179
 180         if (pix->pixelformat == V4L2_PIX_FMT_SBGGR8) {
 181                 err += sn9c102_write_reg(cam, 0xb4, 0x17);
 182         } else {
 183                 err += sn9c102_write_reg(cam, 0xe2, 0x17);
 184         }
 185
 186         return err;
 187 }
 188
 189
 190 static const struct sn9c102_sensor mt9v111 = {
 191         .name = "MT9V111",
 192         .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
 193         .supported_bridge = BRIDGE_SN9C105 | BRIDGE_SN9C120,
 194         .frequency = SN9C102_I2C_100KHZ,
 195         .interface = SN9C102_I2C_2WIRES,
 196         .i2c_slave_id = 0x5c,
 197         .init = &mt9v111_init,
 198         .qctrl = {
 199                 {
 200                         .id = V4L2_CID_VFLIP,
 201                         .type = V4L2_CTRL_TYPE_BOOLEAN,
 202                         .name = "vertical mirror",
 203                         .minimum = 0,
 204                         .maximum = 1,
 205                         .step = 1,
 206                         .default_value = 0,
 207                         .flags = 0,
 208                 },
 209         },
 210         .get_ctrl = &mt9v111_get_ctrl,
 211         .set_ctrl = &mt9v111_set_ctrl,
 212         .cropcap = {
 213                 .bounds = {
 214                         .left = 0,
 215                         .top = 0,
 216                         .width = 640,
 217                         .height = 480,
 218                 },
 219                 .defrect = {
 220                         .left = 0,
 221                         .top = 0,
 222                         .width = 640,
 223                         .height = 480,
 224                 },
 225         },
 226         .set_crop = &mt9v111_set_crop,
 227         .pix_format = {
 228                 .width = 640,
 229                 .height = 480,
 230                 .pixelformat = V4L2_PIX_FMT_SBGGR8,
 231                 .priv = 8,
 232         },
 233         .set_pix_format = &mt9v111_set_pix_format
 234 };
 235
 236
 237 int sn9c102_probe_mt9v111(struct sn9c102_device *cam)
 238 {
 239         u8 data[2];
 240         int err = 0;
 241
 242         err += sn9c102_write_const_regs(cam, {0x01, 0xf1}, {0x00, 0xf1},
 243                                         {0x29, 0x01}, {0x42, 0x17},
 244                                         {0x62, 0x17}, {0x08, 0x01});
 245         err += sn9c102_i2c_try_raw_write(cam, &mt9v111, 4,
 246                                          mt9v111.i2c_slave_id, 0x01, 0x00,
 247                                          0x04, 0, 0);
 248         if (err || sn9c102_i2c_try_raw_read(cam, &mt9v111,
 249                                             mt9v111.i2c_slave_id, 0x36, 2,
 250                                             data) < 0)
 251                 return -EIO;
 252
 253         if (data[0] != 0x82 || data[1] != 0x3a)
 254                 return -ENODEV;
 255
 256         sn9c102_attach_sensor(cam, &mt9v111);
 257
 258         return 0;
 259 }