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, rc = 0; 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 rc |= 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 rc |= m5602_write_sensor(sd, 227 preinit_mt9m111[i][1], data, 2); 228 } 229 } 230 if (rc < 0) 231 return rc; 232 233 if (m5602_read_sensor(sd, MT9M111_SC_CHIPVER, data, 2)) 234 return -ENODEV; 235 236 if ((data[0] == 0x14) && (data[1] == 0x3a)) { 237 pr_info("Detected a mt9m111 sensor\n"); 238 goto sensor_found; 239 } 240 241 return -ENODEV; 242 243 sensor_found: 244 sd->gspca_dev.cam.cam_mode = mt9m111_modes; 245 sd->gspca_dev.cam.nmodes = ARRAY_SIZE(mt9m111_modes); 246 247 return 0; 248 } 249 250 int mt9m111_init(struct sd *sd) 251 { 252 int i, err = 0; 253 254 /* Init the sensor */ 255 for (i = 0; i < ARRAY_SIZE(init_mt9m111) && !err; i++) { 256 u8 data[2]; 257 258 if (init_mt9m111[i][0] == BRIDGE) { 259 err = m5602_write_bridge(sd, 260 init_mt9m111[i][1], 261 init_mt9m111[i][2]); 262 } else { 263 data[0] = init_mt9m111[i][2]; 264 data[1] = init_mt9m111[i][3]; 265 err = m5602_write_sensor(sd, 266 init_mt9m111[i][1], data, 2); 267 } 268 } 269 270 if (dump_sensor) 271 mt9m111_dump_registers(sd); 272 273 return 0; 274 } 275 276 int mt9m111_init_controls(struct sd *sd) 277 { 278 struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler; 279 280 sd->gspca_dev.vdev.ctrl_handler = hdl; 281 v4l2_ctrl_handler_init(hdl, 7); 282 283 sd->auto_white_bal = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, 284 V4L2_CID_AUTO_WHITE_BALANCE, 285 0, 1, 1, 0); 286 sd->green_bal = v4l2_ctrl_new_custom(hdl, &mt9m111_greenbal_cfg, NULL); 287 sd->red_bal = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, 288 V4L2_CID_RED_BALANCE, 0, 0x7ff, 1, 289 MT9M111_RED_GAIN_DEFAULT); 290 sd->blue_bal = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, 291 V4L2_CID_BLUE_BALANCE, 0, 0x7ff, 1, 292 MT9M111_BLUE_GAIN_DEFAULT); 293 294 v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, V4L2_CID_GAIN, 0, 295 (INITIAL_MAX_GAIN - 1) * 2 * 2 * 2, 1, 296 MT9M111_DEFAULT_GAIN); 297 298 sd->hflip = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, V4L2_CID_HFLIP, 299 0, 1, 1, 0); 300 sd->vflip = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, V4L2_CID_VFLIP, 301 0, 1, 1, 0); 302 303 if (hdl->error) { 304 pr_err("Could not initialize controls\n"); 305 return hdl->error; 306 } 307 308 v4l2_ctrl_auto_cluster(4, &sd->auto_white_bal, 0, false); 309 v4l2_ctrl_cluster(2, &sd->hflip); 310 311 return 0; 312 } 313 314 int mt9m111_start(struct sd *sd) 315 { 316 int i, err = 0; 317 u8 data[2]; 318 struct cam *cam = &sd->gspca_dev.cam; 319 struct gspca_dev *gspca_dev = (struct gspca_dev *)sd; 320 321 int width = cam->cam_mode[sd->gspca_dev.curr_mode].width - 1; 322 int height = cam->cam_mode[sd->gspca_dev.curr_mode].height; 323 324 for (i = 0; i < ARRAY_SIZE(start_mt9m111) && !err; i++) { 325 if (start_mt9m111[i][0] == BRIDGE) { 326 err = m5602_write_bridge(sd, 327 start_mt9m111[i][1], 328 start_mt9m111[i][2]); 329 } else { 330 data[0] = start_mt9m111[i][2]; 331 data[1] = start_mt9m111[i][3]; 332 err = m5602_write_sensor(sd, 333 start_mt9m111[i][1], data, 2); 334 } 335 } 336 if (err < 0) 337 return err; 338 339 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height >> 8) & 0xff); 340 if (err < 0) 341 return err; 342 343 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height & 0xff)); 344 if (err < 0) 345 return err; 346 347 for (i = 0; i < 2 && !err; i++) 348 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, 0); 349 if (err < 0) 350 return err; 351 352 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0); 353 if (err < 0) 354 return err; 355 356 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 2); 357 if (err < 0) 358 return err; 359 360 for (i = 0; i < 2 && !err; i++) 361 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, 0); 362 if (err < 0) 363 return err; 364 365 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, 366 (width >> 8) & 0xff); 367 if (err < 0) 368 return err; 369 370 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, width & 0xff); 371 if (err < 0) 372 return err; 373 374 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0); 375 if (err < 0) 376 return err; 377 378 switch (width) { 379 case 640: 380 gspca_dbg(gspca_dev, D_CONF, "Configuring camera for VGA mode\n"); 381 break; 382 383 case 320: 384 gspca_dbg(gspca_dev, D_CONF, "Configuring camera for QVGA mode\n"); 385 break; 386 } 387 return err; 388 } 389 390 void mt9m111_disconnect(struct sd *sd) 391 { 392 sd->sensor = NULL; 393 } 394 395 static int mt9m111_set_hvflip(struct gspca_dev *gspca_dev) 396 { 397 int err; 398 u8 data[2] = {0x00, 0x00}; 399 struct sd *sd = (struct sd *) gspca_dev; 400 int hflip; 401 int vflip; 402 403 gspca_dbg(gspca_dev, D_CONF, "Set hvflip to %d %d\n", 404 sd->hflip->val, sd->vflip->val); 405 406 /* The mt9m111 is flipped by default */ 407 hflip = !sd->hflip->val; 408 vflip = !sd->vflip->val; 409 410 /* Set the correct page map */ 411 err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2); 412 if (err < 0) 413 return err; 414 415 data[0] = MT9M111_RMB_OVER_SIZED; 416 if (gspca_dev->pixfmt.width == 640) { 417 data[1] = MT9M111_RMB_ROW_SKIP_2X | 418 MT9M111_RMB_COLUMN_SKIP_2X | 419 (hflip << 1) | vflip; 420 } else { 421 data[1] = MT9M111_RMB_ROW_SKIP_4X | 422 MT9M111_RMB_COLUMN_SKIP_4X | 423 (hflip << 1) | vflip; 424 } 425 err = m5602_write_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B, 426 data, 2); 427 return err; 428 } 429 430 static int mt9m111_set_auto_white_balance(struct gspca_dev *gspca_dev, 431 __s32 val) 432 { 433 struct sd *sd = (struct sd *) gspca_dev; 434 int err; 435 u8 data[2]; 436 437 err = m5602_read_sensor(sd, MT9M111_CP_OPERATING_MODE_CTL, data, 2); 438 if (err < 0) 439 return err; 440 441 data[1] = ((data[1] & 0xfd) | ((val & 0x01) << 1)); 442 443 err = m5602_write_sensor(sd, MT9M111_CP_OPERATING_MODE_CTL, data, 2); 444 445 gspca_dbg(gspca_dev, D_CONF, "Set auto white balance %d\n", val); 446 return err; 447 } 448 449 static int mt9m111_set_gain(struct gspca_dev *gspca_dev, __s32 val) 450 { 451 int err, tmp; 452 u8 data[2] = {0x00, 0x00}; 453 struct sd *sd = (struct sd *) gspca_dev; 454 455 /* Set the correct page map */ 456 err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2); 457 if (err < 0) 458 return err; 459 460 if (val >= INITIAL_MAX_GAIN * 2 * 2 * 2) 461 return -EINVAL; 462 463 if ((val >= INITIAL_MAX_GAIN * 2 * 2) && 464 (val < (INITIAL_MAX_GAIN - 1) * 2 * 2 * 2)) 465 tmp = (1 << 10) | (val << 9) | 466 (val << 8) | (val / 8); 467 else if ((val >= INITIAL_MAX_GAIN * 2) && 468 (val < INITIAL_MAX_GAIN * 2 * 2)) 469 tmp = (1 << 9) | (1 << 8) | (val / 4); 470 else if ((val >= INITIAL_MAX_GAIN) && 471 (val < INITIAL_MAX_GAIN * 2)) 472 tmp = (1 << 8) | (val / 2); 473 else 474 tmp = val; 475 476 data[1] = (tmp & 0xff); 477 data[0] = (tmp & 0xff00) >> 8; 478 gspca_dbg(gspca_dev, D_CONF, "tmp=%d, data[1]=%d, data[0]=%d\n", tmp, 479 data[1], data[0]); 480 481 err = m5602_write_sensor(sd, MT9M111_SC_GLOBAL_GAIN, 482 data, 2); 483 484 return err; 485 } 486 487 static int mt9m111_set_green_balance(struct gspca_dev *gspca_dev, __s32 val) 488 { 489 int err; 490 u8 data[2]; 491 struct sd *sd = (struct sd *) gspca_dev; 492 493 data[1] = (val & 0xff); 494 data[0] = (val & 0xff00) >> 8; 495 496 gspca_dbg(gspca_dev, D_CONF, "Set green balance %d\n", val); 497 err = m5602_write_sensor(sd, MT9M111_SC_GREEN_1_GAIN, 498 data, 2); 499 if (err < 0) 500 return err; 501 502 return m5602_write_sensor(sd, MT9M111_SC_GREEN_2_GAIN, 503 data, 2); 504 } 505 506 static int mt9m111_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val) 507 { 508 u8 data[2]; 509 struct sd *sd = (struct sd *) gspca_dev; 510 511 data[1] = (val & 0xff); 512 data[0] = (val & 0xff00) >> 8; 513 514 gspca_dbg(gspca_dev, D_CONF, "Set blue balance %d\n", val); 515 516 return m5602_write_sensor(sd, MT9M111_SC_BLUE_GAIN, 517 data, 2); 518 } 519 520 static int mt9m111_set_red_balance(struct gspca_dev *gspca_dev, __s32 val) 521 { 522 u8 data[2]; 523 struct sd *sd = (struct sd *) gspca_dev; 524 525 data[1] = (val & 0xff); 526 data[0] = (val & 0xff00) >> 8; 527 528 gspca_dbg(gspca_dev, D_CONF, "Set red balance %d\n", val); 529 530 return m5602_write_sensor(sd, MT9M111_SC_RED_GAIN, 531 data, 2); 532 } 533 534 static int mt9m111_s_ctrl(struct v4l2_ctrl *ctrl) 535 { 536 struct gspca_dev *gspca_dev = 537 container_of(ctrl->handler, struct gspca_dev, ctrl_handler); 538 struct sd *sd = (struct sd *) gspca_dev; 539 int err; 540 541 if (!gspca_dev->streaming) 542 return 0; 543 544 switch (ctrl->id) { 545 case V4L2_CID_AUTO_WHITE_BALANCE: 546 err = mt9m111_set_auto_white_balance(gspca_dev, ctrl->val); 547 if (err || ctrl->val) 548 return err; 549 err = mt9m111_set_green_balance(gspca_dev, sd->green_bal->val); 550 if (err) 551 return err; 552 err = mt9m111_set_red_balance(gspca_dev, sd->red_bal->val); 553 if (err) 554 return err; 555 err = mt9m111_set_blue_balance(gspca_dev, sd->blue_bal->val); 556 break; 557 case V4L2_CID_GAIN: 558 err = mt9m111_set_gain(gspca_dev, ctrl->val); 559 break; 560 case V4L2_CID_HFLIP: 561 err = mt9m111_set_hvflip(gspca_dev); 562 break; 563 default: 564 return -EINVAL; 565 } 566 567 return err; 568 } 569 570 static void mt9m111_dump_registers(struct sd *sd) 571 { 572 u8 address, value[2] = {0x00, 0x00}; 573 574 pr_info("Dumping the mt9m111 register state\n"); 575 576 pr_info("Dumping the mt9m111 sensor core registers\n"); 577 value[1] = MT9M111_SENSOR_CORE; 578 m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2); 579 for (address = 0; address < 0xff; address++) { 580 m5602_read_sensor(sd, address, value, 2); 581 pr_info("register 0x%x contains 0x%x%x\n", 582 address, value[0], value[1]); 583 } 584 585 pr_info("Dumping the mt9m111 color pipeline registers\n"); 586 value[1] = MT9M111_COLORPIPE; 587 m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2); 588 for (address = 0; address < 0xff; address++) { 589 m5602_read_sensor(sd, address, value, 2); 590 pr_info("register 0x%x contains 0x%x%x\n", 591 address, value[0], value[1]); 592 } 593 594 pr_info("Dumping the mt9m111 camera control registers\n"); 595 value[1] = MT9M111_CAMERA_CONTROL; 596 m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2); 597 for (address = 0; address < 0xff; address++) { 598 m5602_read_sensor(sd, address, value, 2); 599 pr_info("register 0x%x contains 0x%x%x\n", 600 address, value[0], value[1]); 601 } 602 603 pr_info("mt9m111 register state dump complete\n"); 604 } 605