sn9c102_mi0343.c revision c680dd603857d7218b84751e9f6f0654bbfbefa2
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 25static 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 54static 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[5+1]; 59 60 switch (ctrl->id) { 61 case V4L2_CID_EXPOSURE: 62 if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x09, 63 2+1, data) < 0) 64 return -EIO; 65 ctrl->value = data[2]; 66 return 0; 67 case V4L2_CID_GAIN: 68 if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x35, 69 2+1, 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, 74 2+1, data) < 0) 75 return -EIO; 76 ctrl->value = data[3] & 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, 80 2+1, data) < 0) 81 return -EIO; 82 ctrl->value = data[3] & 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, 86 2+1, 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, 91 2+1, 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, 96 2+1, 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[3] | (data[2] << 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 121static 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 191static 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 206static 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 226static 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 333int sn9c102_probe_mi0343(struct sn9c102_device* cam) 334{ 335 u8 data[5+1]; 336 int err = 0; 337 338 err = sn9c102_write_const_regs(cam, {0x01, 0x01}, {0x00, 0x01}, 339 {0x28, 0x17}); 340 341 if (err) 342 return -EIO; 343 344 if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id, 0x00, 345 2, data) < 0) 346 return -EIO; 347 348 if (data[4] != 0x32 || data[3] != 0xe3) 349 return -ENODEV; 350 351 sn9c102_attach_sensor(cam, &mi0343); 352 353 return 0; 354} 355