1 /* 2 * Driver for the mt9m111 sensor 3 * 4 * Copyright (C) 2008 Erik Andrén 5 * Copyright (C) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project. 6 * Copyright (C) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br> 7 * 8 * Portions of code to USB interface and ALi driver software, 9 * Copyright (c) 2006 Willem Duinker 10 * v4l2 interface modeled after the V4L2 driver 11 * for SN9C10x PC Camera Controllers 12 * 13 * This program is free software; you can redistribute it and/or 14 * modify it under the terms of the GNU General Public License as 15 * published by the Free Software Foundation, version 2. 16 * 17 */ 18 19 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 20 21 #include "m5602_mt9m111.h" 22 23 static int mt9m111_s_ctrl(struct v4l2_ctrl *ctrl); 24 static void mt9m111_dump_registers(struct sd *sd); 25 26 static const unsigned char preinit_mt9m111[][4] = { 27 {BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02, 0x00}, 28 {BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0, 0x00}, 29 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00}, 30 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00}, 31 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x0d, 0x00}, 32 {BRIDGE, M5602_XB_SENSOR_CTRL, 0x00, 0x00}, 33 {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00}, 34 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x09, 0x00}, 35 36 {SENSOR, MT9M111_PAGE_MAP, 0x00, 0x00}, 37 {SENSOR, MT9M111_SC_RESET, 38 MT9M111_RESET | 39 MT9M111_RESTART | 40 MT9M111_ANALOG_STANDBY | 41 MT9M111_CHIP_DISABLE, 42 MT9M111_SHOW_BAD_FRAMES | 43 MT9M111_RESTART_BAD_FRAMES | 44 MT9M111_SYNCHRONIZE_CHANGES}, 45 46 {BRIDGE, M5602_XB_GPIO_DIR, 0x05, 0x00}, 47 {BRIDGE, M5602_XB_GPIO_DAT, 0x04, 0x00}, 48 {BRIDGE, M5602_XB_GPIO_EN_H, 0x3e, 0x00}, 49 {BRIDGE, M5602_XB_GPIO_DIR_H, 0x3e, 0x00}, 50 {BRIDGE, M5602_XB_GPIO_DAT_H, 0x02, 0x00}, 51 {BRIDGE, M5602_XB_GPIO_EN_L, 0xff, 0x00}, 52 {BRIDGE, M5602_XB_GPIO_DIR_L, 0xff, 0x00}, 53 {BRIDGE, M5602_XB_GPIO_DAT_L, 0x00, 0x00}, 54 55 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00}, 56 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00}, 57 {BRIDGE, M5602_XB_GPIO_DIR, 0x07, 0x00}, 58 {BRIDGE, M5602_XB_GPIO_DAT, 0x0b, 0x00}, 59 {BRIDGE, M5602_XB_GPIO_EN_H, 0x06, 0x00}, 60 {BRIDGE, M5602_XB_GPIO_EN_L, 0x00, 0x00}, 61 62 {BRIDGE, M5602_XB_I2C_CLK_DIV, 0x0a, 0x00} 63 }; 64 65 static const unsigned char init_mt9m111[][4] = { 66 {BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02, 0x00}, 67 {BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0, 0x00}, 68 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00}, 69 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00}, 70 {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00}, 71 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x09, 0x00}, 72 73 {BRIDGE, M5602_XB_GPIO_EN_H, 0x06, 0x00}, 74 {BRIDGE, M5602_XB_GPIO_EN_L, 0x00, 0x00}, 75 {BRIDGE, M5602_XB_GPIO_DAT, 0x04, 0x00}, 76 {BRIDGE, M5602_XB_GPIO_DIR_H, 0x3e, 0x00}, 77 {BRIDGE, M5602_XB_GPIO_DIR_L, 0xff, 0x00}, 78 {BRIDGE, M5602_XB_GPIO_DAT_H, 0x02, 0x00}, 79 {BRIDGE, M5602_XB_GPIO_DAT_L, 0x00, 0x00}, 80 {BRIDGE, M5602_XB_GPIO_DIR, 0x07, 0x00}, 81 {BRIDGE, M5602_XB_GPIO_DAT, 0x0b, 0x00}, 82 {BRIDGE, M5602_XB_I2C_CLK_DIV, 0x0a, 0x00}, 83 84 {SENSOR, MT9M111_SC_RESET, 0x00, 0x29}, 85 {SENSOR, MT9M111_PAGE_MAP, 0x00, 0x00}, 86 {SENSOR, MT9M111_SC_RESET, 0x00, 0x08}, 87 {SENSOR, MT9M111_PAGE_MAP, 0x00, 0x01}, 88 {SENSOR, MT9M111_CP_OPERATING_MODE_CTL, 0x00, 89 MT9M111_CP_OPERATING_MODE_CTL}, 90 {SENSOR, MT9M111_CP_LENS_CORRECTION_1, 0x04, 0x2a}, 91 {SENSOR, MT9M111_CP_DEFECT_CORR_CONTEXT_A, 0x00, 92 MT9M111_2D_DEFECT_CORRECTION_ENABLE}, 93 {SENSOR, MT9M111_CP_DEFECT_CORR_CONTEXT_B, 0x00, 94 MT9M111_2D_DEFECT_CORRECTION_ENABLE}, 95 {SENSOR, MT9M111_CP_LUMA_OFFSET, 0x00, 0x00}, 96 {SENSOR, MT9M111_CP_LUMA_CLIP, 0xff, 0x00}, 97 {SENSOR, MT9M111_CP_OUTPUT_FORMAT_CTL2_CONTEXT_A, 0x14, 0x00}, 98 {SENSOR, MT9M111_CP_OUTPUT_FORMAT_CTL2_CONTEXT_B, 0x14, 0x00}, 99 {SENSOR, 0xcd, 0x00, 0x0e}, 100 {SENSOR, 0xd0, 0x00, 0x40}, 101 102 {SENSOR, MT9M111_PAGE_MAP, 0x00, 0x02}, 103 {SENSOR, MT9M111_CC_AUTO_EXPOSURE_PARAMETER_18, 0x00, 0x00}, 104 {SENSOR, MT9M111_CC_AWB_PARAMETER_7, 0xef, 0x03}, 105 106 {SENSOR, MT9M111_PAGE_MAP, 0x00, 0x00}, 107 {SENSOR, 0x33, 0x03, 0x49}, 108 {SENSOR, 0x34, 0xc0, 0x19}, 109 {SENSOR, 0x3f, 0x20, 0x20}, 110 {SENSOR, 0x40, 0x20, 0x20}, 111 {SENSOR, 0x5a, 0xc0, 0x0a}, 112 {SENSOR, 0x70, 0x7b, 0x0a}, 113 {SENSOR, 0x71, 0xff, 0x00}, 114 {SENSOR, 0x72, 0x19, 0x0e}, 115 {SENSOR, 0x73, 0x18, 0x0f}, 116 {SENSOR, 0x74, 0x57, 0x32}, 117 {SENSOR, 0x75, 0x56, 0x34}, 118 {SENSOR, 0x76, 0x73, 0x35}, 119 {SENSOR, 0x77, 0x30, 0x12}, 120 {SENSOR, 0x78, 0x79, 0x02}, 121 {SENSOR, 0x79, 0x75, 0x06}, 122 {SENSOR, 0x7a, 0x77, 0x0a}, 123 {SENSOR, 0x7b, 0x78, 0x09}, 124 {SENSOR, 0x7c, 0x7d, 0x06}, 125 {SENSOR, 0x7d, 0x31, 0x10}, 126 {SENSOR, 0x7e, 0x00, 0x7e}, 127 {SENSOR, 0x80, 0x59, 0x04}, 128 {SENSOR, 0x81, 0x59, 0x04}, 129 {SENSOR, 0x82, 0x57, 0x0a}, 130 {SENSOR, 0x83, 0x58, 0x0b}, 131 {SENSOR, 0x84, 0x47, 0x0c}, 132 {SENSOR, 0x85, 0x48, 0x0e}, 133 {SENSOR, 0x86, 0x5b, 0x02}, 134 {SENSOR, 0x87, 0x00, 0x5c}, 135 {SENSOR, MT9M111_CONTEXT_CONTROL, 0x00, MT9M111_SEL_CONTEXT_B}, 136 {SENSOR, 0x60, 0x00, 0x80}, 137 {SENSOR, 0x61, 0x00, 0x00}, 138 {SENSOR, 0x62, 0x00, 0x00}, 139 {SENSOR, 0x63, 0x00, 0x00}, 140 {SENSOR, 0x64, 0x00, 0x00}, 141 142 {SENSOR, MT9M111_SC_ROWSTART, 0x00, 0x0d}, /* 13 */ 143 {SENSOR, MT9M111_SC_COLSTART, 0x00, 0x12}, /* 18 */ 144 {SENSOR, MT9M111_SC_WINDOW_HEIGHT, 0x04, 0x00}, /* 1024 */ 145 {SENSOR, MT9M111_SC_WINDOW_WIDTH, 0x05, 0x10}, /* 1296 */ 146 {SENSOR, MT9M111_SC_HBLANK_CONTEXT_B, 0x01, 0x60}, /* 352 */ 147 {SENSOR, MT9M111_SC_VBLANK_CONTEXT_B, 0x00, 0x11}, /* 17 */ 148 {SENSOR, MT9M111_SC_HBLANK_CONTEXT_A, 0x01, 0x60}, /* 352 */ 149 {SENSOR, MT9M111_SC_VBLANK_CONTEXT_A, 0x00, 0x11}, /* 17 */ 150 {SENSOR, MT9M111_SC_R_MODE_CONTEXT_A, 0x01, 0x0f}, /* 271 */ 151 {SENSOR, 0x30, 0x04, 0x00}, 152 /* Set number of blank rows chosen to 400 */ 153 {SENSOR, MT9M111_SC_SHUTTER_WIDTH, 0x01, 0x90}, 154 }; 155 156 static const unsigned char start_mt9m111[][4] = { 157 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x06, 0x00}, 158 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00}, 159 {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00}, 160 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x09, 0x00}, 161 {BRIDGE, M5602_XB_LINE_OF_FRAME_H, 0x81, 0x00}, 162 {BRIDGE, M5602_XB_PIX_OF_LINE_H, 0x82, 0x00}, 163 {BRIDGE, M5602_XB_SIG_INI, 0x01, 0x00}, 164 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00}, 165 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00}, 166 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00}, 167 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00}, 168 }; 169 170 static struct v4l2_pix_format mt9m111_modes[] = { 171 { 172 640, 173 480, 174 V4L2_PIX_FMT_SBGGR8, 175 V4L2_FIELD_NONE, 176 .sizeimage = 640 * 480, 177 .bytesperline = 640, 178 .colorspace = V4L2_COLORSPACE_SRGB, 179 .priv = 0 180 } 181 }; 182 183 static const struct v4l2_ctrl_ops mt9m111_ctrl_ops = { 184 .s_ctrl = mt9m111_s_ctrl, 185 }; 186 187 static const struct v4l2_ctrl_config mt9m111_greenbal_cfg = { 188 .ops = &mt9m111_ctrl_ops, 189 .id = M5602_V4L2_CID_GREEN_BALANCE, 190 .name = "Green Balance", 191 .type = V4L2_CTRL_TYPE_INTEGER, 192 .min = 0, 193 .max = 0x7ff, 194 .step = 1, 195 .def = MT9M111_GREEN_GAIN_DEFAULT, 196 .flags = V4L2_CTRL_FLAG_SLIDER, 197 }; 198 199 int mt9m111_probe(struct sd *sd) 200 { 201 u8 data[2] = {0x00, 0x00}; 202 int i; 203 struct gspca_dev *gspca_dev = (struct gspca_dev *)sd; 204 205 if (force_sensor) { 206 if (force_sensor == MT9M111_SENSOR) { 207 pr_info("Forcing a %s sensor\n", mt9m111.name); 208 goto sensor_found; 209 } 210 /* If we want to force another sensor, don't try to probe this 211 * one */ 212 return -ENODEV; 213 } 214 215 gspca_dbg(gspca_dev, D_PROBE, "Probing for a mt9m111 sensor\n"); 216 217 /* Do the preinit */ 218 for (i = 0; i < ARRAY_SIZE(preinit_mt9m111); i++) { 219 if (preinit_mt9m111[i][0] == BRIDGE) { 220 m5602_write_bridge(sd, 221 preinit_mt9m111[i][1], 222 preinit_mt9m111[i][2]); 223 } else { 224 data[0] = preinit_mt9m111[i][2]; 225 data[1] = preinit_mt9m111[i][3]; 226 m5602_write_sensor(sd, 227 preinit_mt9m111[i][1], data, 2); 228 } 229 } 230 231 if (m5602_read_sensor(sd, MT9M111_SC_CHIPVER, data, 2)) 232 return -ENODEV; 233 234 if ((data[0] == 0x14) && (data[1] == 0x3a)) { 235 pr_info("Detected a mt9m111 sensor\n"); 236 goto sensor_found; 237 } 238 239 return -ENODEV; 240 241 sensor_found: 242 sd->gspca_dev.cam.cam_mode = mt9m111_modes; 243 sd->gspca_dev.cam.nmodes = ARRAY_SIZE(mt9m111_modes); 244 245 return 0; 246 } 247 248 int mt9m111_init(struct sd *sd) 249 { 250 int i, err = 0; 251 252 /* Init the sensor */ 253 for (i = 0; i < ARRAY_SIZE(init_mt9m111) && !err; i++) { 254 u8 data[2]; 255 256 if (init_mt9m111[i][0] == BRIDGE) { 257 err = m5602_write_bridge(sd, 258 init_mt9m111[i][1], 259 init_mt9m111[i][2]); 260 } else { 261 data[0] = init_mt9m111[i][2]; 262 data[1] = init_mt9m111[i][3]; 263 err = m5602_write_sensor(sd, 264 init_mt9m111[i][1], data, 2); 265 } 266 } 267 268 if (dump_sensor) 269 mt9m111_dump_registers(sd); 270 271 return 0; 272 } 273 274 int mt9m111_init_controls(struct sd *sd) 275 { 276 struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler; 277 278 sd->gspca_dev.vdev.ctrl_handler = hdl; 279 v4l2_ctrl_handler_init(hdl, 7); 280 281 sd->auto_white_bal = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, 282 V4L2_CID_AUTO_WHITE_BALANCE, 283 0, 1, 1, 0); 284 sd->green_bal = v4l2_ctrl_new_custom(hdl, &mt9m111_greenbal_cfg, NULL); 285 sd->red_bal = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, 286 V4L2_CID_RED_BALANCE, 0, 0x7ff, 1, 287 MT9M111_RED_GAIN_DEFAULT); 288 sd->blue_bal = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, 289 V4L2_CID_BLUE_BALANCE, 0, 0x7ff, 1, 290 MT9M111_BLUE_GAIN_DEFAULT); 291 292 v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, V4L2_CID_GAIN, 0, 293 (INITIAL_MAX_GAIN - 1) * 2 * 2 * 2, 1, 294 MT9M111_DEFAULT_GAIN); 295 296 sd->hflip = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, V4L2_CID_HFLIP, 297 0, 1, 1, 0); 298 sd->vflip = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, V4L2_CID_VFLIP, 299 0, 1, 1, 0); 300 301 if (hdl->error) { 302 pr_err("Could not initialize controls\n"); 303 return hdl->error; 304 } 305 306 v4l2_ctrl_auto_cluster(4, &sd->auto_white_bal, 0, false); 307 v4l2_ctrl_cluster(2, &sd->hflip); 308 309 return 0; 310 } 311 312 int mt9m111_start(struct sd *sd) 313 { 314 int i, err = 0; 315 u8 data[2]; 316 struct cam *cam = &sd->gspca_dev.cam; 317 struct gspca_dev *gspca_dev = (struct gspca_dev *)sd; 318 319 int width = cam->cam_mode[sd->gspca_dev.curr_mode].width - 1; 320 int height = cam->cam_mode[sd->gspca_dev.curr_mode].height; 321 322 for (i = 0; i < ARRAY_SIZE(start_mt9m111) && !err; i++) { 323 if (start_mt9m111[i][0] == BRIDGE) { 324 err = m5602_write_bridge(sd, 325 start_mt9m111[i][1], 326 start_mt9m111[i][2]); 327 } else { 328 data[0] = start_mt9m111[i][2]; 329 data[1] = start_mt9m111[i][3]; 330 err = m5602_write_sensor(sd, 331 start_mt9m111[i][1], data, 2); 332 } 333 } 334 if (err < 0) 335 return err; 336 337 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height >> 8) & 0xff); 338 if (err < 0) 339 return err; 340 341 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height & 0xff)); 342 if (err < 0) 343 return err; 344 345 for (i = 0; i < 2 && !err; i++) 346 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, 0); 347 if (err < 0) 348 return err; 349 350 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0); 351 if (err < 0) 352 return err; 353 354 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 2); 355 if (err < 0) 356 return err; 357 358 for (i = 0; i < 2 && !err; i++) 359 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, 0); 360 if (err < 0) 361 return err; 362 363 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, 364 (width >> 8) & 0xff); 365 if (err < 0) 366 return err; 367 368 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, width & 0xff); 369 if (err < 0) 370 return err; 371 372 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0); 373 if (err < 0) 374 return err; 375 376 switch (width) { 377 case 640: 378 gspca_dbg(gspca_dev, D_CONF, "Configuring camera for VGA mode\n"); 379 break; 380 381 case 320: 382 gspca_dbg(gspca_dev, D_CONF, "Configuring camera for QVGA mode\n"); 383 break; 384 } 385 return err; 386 } 387 388 void mt9m111_disconnect(struct sd *sd) 389 { 390 sd->sensor = NULL; 391 } 392 393 static int mt9m111_set_hvflip(struct gspca_dev *gspca_dev) 394 { 395 int err; 396 u8 data[2] = {0x00, 0x00}; 397 struct sd *sd = (struct sd *) gspca_dev; 398 int hflip; 399 int vflip; 400 401 gspca_dbg(gspca_dev, D_CONF, "Set hvflip to %d %d\n", 402 sd->hflip->val, sd->vflip->val); 403 404 /* The mt9m111 is flipped by default */ 405 hflip = !sd->hflip->val; 406 vflip = !sd->vflip->val; 407 408 /* Set the correct page map */ 409 err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2); 410 if (err < 0) 411 return err; 412 413 data[0] = MT9M111_RMB_OVER_SIZED; 414 if (gspca_dev->pixfmt.width == 640) { 415 data[1] = MT9M111_RMB_ROW_SKIP_2X | 416 MT9M111_RMB_COLUMN_SKIP_2X | 417 (hflip << 1) | vflip; 418 } else { 419 data[1] = MT9M111_RMB_ROW_SKIP_4X | 420 MT9M111_RMB_COLUMN_SKIP_4X | 421 (hflip << 1) | vflip; 422 } 423 err = m5602_write_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B, 424 data, 2); 425 return err; 426 } 427 428 static int mt9m111_set_auto_white_balance(struct gspca_dev *gspca_dev, 429 __s32 val) 430 { 431 struct sd *sd = (struct sd *) gspca_dev; 432 int err; 433 u8 data[2]; 434 435 err = m5602_read_sensor(sd, MT9M111_CP_OPERATING_MODE_CTL, data, 2); 436 if (err < 0) 437 return err; 438 439 data[1] = ((data[1] & 0xfd) | ((val & 0x01) << 1)); 440 441 err = m5602_write_sensor(sd, MT9M111_CP_OPERATING_MODE_CTL, data, 2); 442 443 gspca_dbg(gspca_dev, D_CONF, "Set auto white balance %d\n", val); 444 return err; 445 } 446 447 static int mt9m111_set_gain(struct gspca_dev *gspca_dev, __s32 val) 448 { 449 int err, tmp; 450 u8 data[2] = {0x00, 0x00}; 451 struct sd *sd = (struct sd *) gspca_dev; 452 453 /* Set the correct page map */ 454 err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2); 455 if (err < 0) 456 return err; 457 458 if (val >= INITIAL_MAX_GAIN * 2 * 2 * 2) 459 return -EINVAL; 460 461 if ((val >= INITIAL_MAX_GAIN * 2 * 2) && 462 (val < (INITIAL_MAX_GAIN - 1) * 2 * 2 * 2)) 463 tmp = (1 << 10) | (val << 9) | 464 (val << 8) | (val / 8); 465 else if ((val >= INITIAL_MAX_GAIN * 2) && 466 (val < INITIAL_MAX_GAIN * 2 * 2)) 467 tmp = (1 << 9) | (1 << 8) | (val / 4); 468 else if ((val >= INITIAL_MAX_GAIN) && 469 (val < INITIAL_MAX_GAIN * 2)) 470 tmp = (1 << 8) | (val / 2); 471 else 472 tmp = val; 473 474 data[1] = (tmp & 0xff); 475 data[0] = (tmp & 0xff00) >> 8; 476 gspca_dbg(gspca_dev, D_CONF, "tmp=%d, data[1]=%d, data[0]=%d\n", tmp, 477 data[1], data[0]); 478 479 err = m5602_write_sensor(sd, MT9M111_SC_GLOBAL_GAIN, 480 data, 2); 481 482 return err; 483 } 484 485 static int mt9m111_set_green_balance(struct gspca_dev *gspca_dev, __s32 val) 486 { 487 int err; 488 u8 data[2]; 489 struct sd *sd = (struct sd *) gspca_dev; 490 491 data[1] = (val & 0xff); 492 data[0] = (val & 0xff00) >> 8; 493 494 gspca_dbg(gspca_dev, D_CONF, "Set green balance %d\n", val); 495 err = m5602_write_sensor(sd, MT9M111_SC_GREEN_1_GAIN, 496 data, 2); 497 if (err < 0) 498 return err; 499 500 return m5602_write_sensor(sd, MT9M111_SC_GREEN_2_GAIN, 501 data, 2); 502 } 503 504 static int mt9m111_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val) 505 { 506 u8 data[2]; 507 struct sd *sd = (struct sd *) gspca_dev; 508 509 data[1] = (val & 0xff); 510 data[0] = (val & 0xff00) >> 8; 511 512 gspca_dbg(gspca_dev, D_CONF, "Set blue balance %d\n", val); 513 514 return m5602_write_sensor(sd, MT9M111_SC_BLUE_GAIN, 515 data, 2); 516 } 517 518 static int mt9m111_set_red_balance(struct gspca_dev *gspca_dev, __s32 val) 519 { 520 u8 data[2]; 521 struct sd *sd = (struct sd *) gspca_dev; 522 523 data[1] = (val & 0xff); 524 data[0] = (val & 0xff00) >> 8; 525 526 gspca_dbg(gspca_dev, D_CONF, "Set red balance %d\n", val); 527 528 return m5602_write_sensor(sd, MT9M111_SC_RED_GAIN, 529 data, 2); 530 } 531 532 static int mt9m111_s_ctrl(struct v4l2_ctrl *ctrl) 533 { 534 struct gspca_dev *gspca_dev = 535 container_of(ctrl->handler, struct gspca_dev, ctrl_handler); 536 struct sd *sd = (struct sd *) gspca_dev; 537 int err; 538 539 if (!gspca_dev->streaming) 540 return 0; 541 542 switch (ctrl->id) { 543 case V4L2_CID_AUTO_WHITE_BALANCE: 544 err = mt9m111_set_auto_white_balance(gspca_dev, ctrl->val); 545 if (err || ctrl->val) 546 return err; 547 err = mt9m111_set_green_balance(gspca_dev, sd->green_bal->val); 548 if (err) 549 return err; 550 err = mt9m111_set_red_balance(gspca_dev, sd->red_bal->val); 551 if (err) 552 return err; 553 err = mt9m111_set_blue_balance(gspca_dev, sd->blue_bal->val); 554 break; 555 case V4L2_CID_GAIN: 556 err = mt9m111_set_gain(gspca_dev, ctrl->val); 557 break; 558 case V4L2_CID_HFLIP: 559 err = mt9m111_set_hvflip(gspca_dev); 560 break; 561 default: 562 return -EINVAL; 563 } 564 565 return err; 566 } 567 568 static void mt9m111_dump_registers(struct sd *sd) 569 { 570 u8 address, value[2] = {0x00, 0x00}; 571 572 pr_info("Dumping the mt9m111 register state\n"); 573 574 pr_info("Dumping the mt9m111 sensor core registers\n"); 575 value[1] = MT9M111_SENSOR_CORE; 576 m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2); 577 for (address = 0; address < 0xff; address++) { 578 m5602_read_sensor(sd, address, value, 2); 579 pr_info("register 0x%x contains 0x%x%x\n", 580 address, value[0], value[1]); 581 } 582 583 pr_info("Dumping the mt9m111 color pipeline registers\n"); 584 value[1] = MT9M111_COLORPIPE; 585 m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2); 586 for (address = 0; address < 0xff; address++) { 587 m5602_read_sensor(sd, address, value, 2); 588 pr_info("register 0x%x contains 0x%x%x\n", 589 address, value[0], value[1]); 590 } 591 592 pr_info("Dumping the mt9m111 camera control registers\n"); 593 value[1] = MT9M111_CAMERA_CONTROL; 594 m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2); 595 for (address = 0; address < 0xff; address++) { 596 m5602_read_sensor(sd, address, value, 2); 597 pr_info("register 0x%x contains 0x%x%x\n", 598 address, value[0], value[1]); 599 } 600 601 pr_info("mt9m111 register state dump complete\n"); 602 } 603