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 PDEBUG(D_PROBE, "Probing for a mt9m111 sensor"); 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 PDEBUG(D_CONF, "Configuring camera for VGA mode"); 379 break; 380 381 case 320: 382 PDEBUG(D_CONF, "Configuring camera for QVGA mode"); 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 PDEBUG(D_CONF, "Set hvflip to %d %d", sd->hflip->val, sd->vflip->val); 402 403 /* The mt9m111 is flipped by default */ 404 hflip = !sd->hflip->val; 405 vflip = !sd->vflip->val; 406 407 /* Set the correct page map */ 408 err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2); 409 if (err < 0) 410 return err; 411 412 data[0] = MT9M111_RMB_OVER_SIZED; 413 if (gspca_dev->pixfmt.width == 640) { 414 data[1] = MT9M111_RMB_ROW_SKIP_2X | 415 MT9M111_RMB_COLUMN_SKIP_2X | 416 (hflip << 1) | vflip; 417 } else { 418 data[1] = MT9M111_RMB_ROW_SKIP_4X | 419 MT9M111_RMB_COLUMN_SKIP_4X | 420 (hflip << 1) | vflip; 421 } 422 err = m5602_write_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B, 423 data, 2); 424 return err; 425 } 426 427 static int mt9m111_set_auto_white_balance(struct gspca_dev *gspca_dev, 428 __s32 val) 429 { 430 struct sd *sd = (struct sd *) gspca_dev; 431 int err; 432 u8 data[2]; 433 434 err = m5602_read_sensor(sd, MT9M111_CP_OPERATING_MODE_CTL, data, 2); 435 if (err < 0) 436 return err; 437 438 data[1] = ((data[1] & 0xfd) | ((val & 0x01) << 1)); 439 440 err = m5602_write_sensor(sd, MT9M111_CP_OPERATING_MODE_CTL, data, 2); 441 442 PDEBUG(D_CONF, "Set auto white balance %d", val); 443 return err; 444 } 445 446 static int mt9m111_set_gain(struct gspca_dev *gspca_dev, __s32 val) 447 { 448 int err, tmp; 449 u8 data[2] = {0x00, 0x00}; 450 struct sd *sd = (struct sd *) gspca_dev; 451 452 /* Set the correct page map */ 453 err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2); 454 if (err < 0) 455 return err; 456 457 if (val >= INITIAL_MAX_GAIN * 2 * 2 * 2) 458 return -EINVAL; 459 460 if ((val >= INITIAL_MAX_GAIN * 2 * 2) && 461 (val < (INITIAL_MAX_GAIN - 1) * 2 * 2 * 2)) 462 tmp = (1 << 10) | (val << 9) | 463 (val << 8) | (val / 8); 464 else if ((val >= INITIAL_MAX_GAIN * 2) && 465 (val < INITIAL_MAX_GAIN * 2 * 2)) 466 tmp = (1 << 9) | (1 << 8) | (val / 4); 467 else if ((val >= INITIAL_MAX_GAIN) && 468 (val < INITIAL_MAX_GAIN * 2)) 469 tmp = (1 << 8) | (val / 2); 470 else 471 tmp = val; 472 473 data[1] = (tmp & 0xff); 474 data[0] = (tmp & 0xff00) >> 8; 475 PDEBUG(D_CONF, "tmp=%d, data[1]=%d, data[0]=%d", tmp, 476 data[1], data[0]); 477 478 err = m5602_write_sensor(sd, MT9M111_SC_GLOBAL_GAIN, 479 data, 2); 480 481 return err; 482 } 483 484 static int mt9m111_set_green_balance(struct gspca_dev *gspca_dev, __s32 val) 485 { 486 int err; 487 u8 data[2]; 488 struct sd *sd = (struct sd *) gspca_dev; 489 490 data[1] = (val & 0xff); 491 data[0] = (val & 0xff00) >> 8; 492 493 PDEBUG(D_CONF, "Set green balance %d", val); 494 err = m5602_write_sensor(sd, MT9M111_SC_GREEN_1_GAIN, 495 data, 2); 496 if (err < 0) 497 return err; 498 499 return m5602_write_sensor(sd, MT9M111_SC_GREEN_2_GAIN, 500 data, 2); 501 } 502 503 static int mt9m111_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val) 504 { 505 u8 data[2]; 506 struct sd *sd = (struct sd *) gspca_dev; 507 508 data[1] = (val & 0xff); 509 data[0] = (val & 0xff00) >> 8; 510 511 PDEBUG(D_CONF, "Set blue balance %d", val); 512 513 return m5602_write_sensor(sd, MT9M111_SC_BLUE_GAIN, 514 data, 2); 515 } 516 517 static int mt9m111_set_red_balance(struct gspca_dev *gspca_dev, __s32 val) 518 { 519 u8 data[2]; 520 struct sd *sd = (struct sd *) gspca_dev; 521 522 data[1] = (val & 0xff); 523 data[0] = (val & 0xff00) >> 8; 524 525 PDEBUG(D_CONF, "Set red balance %d", val); 526 527 return m5602_write_sensor(sd, MT9M111_SC_RED_GAIN, 528 data, 2); 529 } 530 531 static int mt9m111_s_ctrl(struct v4l2_ctrl *ctrl) 532 { 533 struct gspca_dev *gspca_dev = 534 container_of(ctrl->handler, struct gspca_dev, ctrl_handler); 535 struct sd *sd = (struct sd *) gspca_dev; 536 int err; 537 538 if (!gspca_dev->streaming) 539 return 0; 540 541 switch (ctrl->id) { 542 case V4L2_CID_AUTO_WHITE_BALANCE: 543 err = mt9m111_set_auto_white_balance(gspca_dev, ctrl->val); 544 if (err || ctrl->val) 545 return err; 546 err = mt9m111_set_green_balance(gspca_dev, sd->green_bal->val); 547 if (err) 548 return err; 549 err = mt9m111_set_red_balance(gspca_dev, sd->red_bal->val); 550 if (err) 551 return err; 552 err = mt9m111_set_blue_balance(gspca_dev, sd->blue_bal->val); 553 break; 554 case V4L2_CID_GAIN: 555 err = mt9m111_set_gain(gspca_dev, ctrl->val); 556 break; 557 case V4L2_CID_HFLIP: 558 err = mt9m111_set_hvflip(gspca_dev); 559 break; 560 default: 561 return -EINVAL; 562 } 563 564 return err; 565 } 566 567 static void mt9m111_dump_registers(struct sd *sd) 568 { 569 u8 address, value[2] = {0x00, 0x00}; 570 571 pr_info("Dumping the mt9m111 register state\n"); 572 573 pr_info("Dumping the mt9m111 sensor core registers\n"); 574 value[1] = MT9M111_SENSOR_CORE; 575 m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2); 576 for (address = 0; address < 0xff; address++) { 577 m5602_read_sensor(sd, address, value, 2); 578 pr_info("register 0x%x contains 0x%x%x\n", 579 address, value[0], value[1]); 580 } 581 582 pr_info("Dumping the mt9m111 color pipeline registers\n"); 583 value[1] = MT9M111_COLORPIPE; 584 m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2); 585 for (address = 0; address < 0xff; address++) { 586 m5602_read_sensor(sd, address, value, 2); 587 pr_info("register 0x%x contains 0x%x%x\n", 588 address, value[0], value[1]); 589 } 590 591 pr_info("Dumping the mt9m111 camera control registers\n"); 592 value[1] = MT9M111_CAMERA_CONTROL; 593 m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2); 594 for (address = 0; address < 0xff; address++) { 595 m5602_read_sensor(sd, address, value, 2); 596 pr_info("register 0x%x contains 0x%x%x\n", 597 address, value[0], value[1]); 598 } 599 600 pr_info("mt9m111 register state dump complete\n"); 601 } 602