1/* 2 * Omnivision OV2659 CMOS Image Sensor driver 3 * 4 * Copyright (C) 2015 Texas Instruments, Inc. 5 * 6 * Benoit Parrot <bparrot@ti.com> 7 * Lad, Prabhakar <prabhakar.csengg@gmail.com> 8 * 9 * This program is free software; you may redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; version 2 of the License. 12 * 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 14 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 15 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 16 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 17 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 18 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 19 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 20 * SOFTWARE. 21 */ 22 23#include <linux/clk.h> 24#include <linux/delay.h> 25#include <linux/err.h> 26#include <linux/init.h> 27#include <linux/interrupt.h> 28#include <linux/io.h> 29#include <linux/i2c.h> 30#include <linux/kernel.h> 31#include <linux/media.h> 32#include <linux/module.h> 33#include <linux/of.h> 34#include <linux/of_graph.h> 35#include <linux/slab.h> 36#include <linux/uaccess.h> 37#include <linux/videodev2.h> 38 39#include <media/media-entity.h> 40#include <media/ov2659.h> 41#include <media/v4l2-common.h> 42#include <media/v4l2-ctrls.h> 43#include <media/v4l2-device.h> 44#include <media/v4l2-event.h> 45#include <media/v4l2-image-sizes.h> 46#include <media/v4l2-mediabus.h> 47#include <media/v4l2-of.h> 48#include <media/v4l2-subdev.h> 49 50#define DRIVER_NAME "ov2659" 51 52/* 53 * OV2659 register definitions 54 */ 55#define REG_SOFTWARE_STANDBY 0x0100 56#define REG_SOFTWARE_RESET 0x0103 57#define REG_IO_CTRL00 0x3000 58#define REG_IO_CTRL01 0x3001 59#define REG_IO_CTRL02 0x3002 60#define REG_OUTPUT_VALUE00 0x3008 61#define REG_OUTPUT_VALUE01 0x3009 62#define REG_OUTPUT_VALUE02 0x300d 63#define REG_OUTPUT_SELECT00 0x300e 64#define REG_OUTPUT_SELECT01 0x300f 65#define REG_OUTPUT_SELECT02 0x3010 66#define REG_OUTPUT_DRIVE 0x3011 67#define REG_INPUT_READOUT00 0x302d 68#define REG_INPUT_READOUT01 0x302e 69#define REG_INPUT_READOUT02 0x302f 70 71#define REG_SC_PLL_CTRL0 0x3003 72#define REG_SC_PLL_CTRL1 0x3004 73#define REG_SC_PLL_CTRL2 0x3005 74#define REG_SC_PLL_CTRL3 0x3006 75#define REG_SC_CHIP_ID_H 0x300a 76#define REG_SC_CHIP_ID_L 0x300b 77#define REG_SC_PWC 0x3014 78#define REG_SC_CLKRST0 0x301a 79#define REG_SC_CLKRST1 0x301b 80#define REG_SC_CLKRST2 0x301c 81#define REG_SC_CLKRST3 0x301d 82#define REG_SC_SUB_ID 0x302a 83#define REG_SC_SCCB_ID 0x302b 84 85#define REG_GROUP_ADDRESS_00 0x3200 86#define REG_GROUP_ADDRESS_01 0x3201 87#define REG_GROUP_ADDRESS_02 0x3202 88#define REG_GROUP_ADDRESS_03 0x3203 89#define REG_GROUP_ACCESS 0x3208 90 91#define REG_AWB_R_GAIN_H 0x3400 92#define REG_AWB_R_GAIN_L 0x3401 93#define REG_AWB_G_GAIN_H 0x3402 94#define REG_AWB_G_GAIN_L 0x3403 95#define REG_AWB_B_GAIN_H 0x3404 96#define REG_AWB_B_GAIN_L 0x3405 97#define REG_AWB_MANUAL_CONTROL 0x3406 98 99#define REG_TIMING_HS_H 0x3800 100#define REG_TIMING_HS_L 0x3801 101#define REG_TIMING_VS_H 0x3802 102#define REG_TIMING_VS_L 0x3803 103#define REG_TIMING_HW_H 0x3804 104#define REG_TIMING_HW_L 0x3805 105#define REG_TIMING_VH_H 0x3806 106#define REG_TIMING_VH_L 0x3807 107#define REG_TIMING_DVPHO_H 0x3808 108#define REG_TIMING_DVPHO_L 0x3809 109#define REG_TIMING_DVPVO_H 0x380a 110#define REG_TIMING_DVPVO_L 0x380b 111#define REG_TIMING_HTS_H 0x380c 112#define REG_TIMING_HTS_L 0x380d 113#define REG_TIMING_VTS_H 0x380e 114#define REG_TIMING_VTS_L 0x380f 115#define REG_TIMING_HOFFS_H 0x3810 116#define REG_TIMING_HOFFS_L 0x3811 117#define REG_TIMING_VOFFS_H 0x3812 118#define REG_TIMING_VOFFS_L 0x3813 119#define REG_TIMING_XINC 0x3814 120#define REG_TIMING_YINC 0x3815 121#define REG_TIMING_VERT_FORMAT 0x3820 122#define REG_TIMING_HORIZ_FORMAT 0x3821 123 124#define REG_FORMAT_CTRL00 0x4300 125 126#define REG_VFIFO_READ_START_H 0x4608 127#define REG_VFIFO_READ_START_L 0x4609 128 129#define REG_DVP_CTRL02 0x4708 130 131#define REG_ISP_CTRL00 0x5000 132#define REG_ISP_CTRL01 0x5001 133#define REG_ISP_CTRL02 0x5002 134 135#define REG_LENC_RED_X0_H 0x500c 136#define REG_LENC_RED_X0_L 0x500d 137#define REG_LENC_RED_Y0_H 0x500e 138#define REG_LENC_RED_Y0_L 0x500f 139#define REG_LENC_RED_A1 0x5010 140#define REG_LENC_RED_B1 0x5011 141#define REG_LENC_RED_A2_B2 0x5012 142#define REG_LENC_GREEN_X0_H 0x5013 143#define REG_LENC_GREEN_X0_L 0x5014 144#define REG_LENC_GREEN_Y0_H 0x5015 145#define REG_LENC_GREEN_Y0_L 0x5016 146#define REG_LENC_GREEN_A1 0x5017 147#define REG_LENC_GREEN_B1 0x5018 148#define REG_LENC_GREEN_A2_B2 0x5019 149#define REG_LENC_BLUE_X0_H 0x501a 150#define REG_LENC_BLUE_X0_L 0x501b 151#define REG_LENC_BLUE_Y0_H 0x501c 152#define REG_LENC_BLUE_Y0_L 0x501d 153#define REG_LENC_BLUE_A1 0x501e 154#define REG_LENC_BLUE_B1 0x501f 155#define REG_LENC_BLUE_A2_B2 0x5020 156 157#define REG_AWB_CTRL00 0x5035 158#define REG_AWB_CTRL01 0x5036 159#define REG_AWB_CTRL02 0x5037 160#define REG_AWB_CTRL03 0x5038 161#define REG_AWB_CTRL04 0x5039 162#define REG_AWB_LOCAL_LIMIT 0x503a 163#define REG_AWB_CTRL12 0x5049 164#define REG_AWB_CTRL13 0x504a 165#define REG_AWB_CTRL14 0x504b 166 167#define REG_SHARPENMT_THRESH1 0x5064 168#define REG_SHARPENMT_THRESH2 0x5065 169#define REG_SHARPENMT_OFFSET1 0x5066 170#define REG_SHARPENMT_OFFSET2 0x5067 171#define REG_DENOISE_THRESH1 0x5068 172#define REG_DENOISE_THRESH2 0x5069 173#define REG_DENOISE_OFFSET1 0x506a 174#define REG_DENOISE_OFFSET2 0x506b 175#define REG_SHARPEN_THRESH1 0x506c 176#define REG_SHARPEN_THRESH2 0x506d 177#define REG_CIP_CTRL00 0x506e 178#define REG_CIP_CTRL01 0x506f 179 180#define REG_CMX_SIGN 0x5079 181#define REG_CMX_MISC_CTRL 0x507a 182 183#define REG_PRE_ISP_CTRL00 0x50a0 184#define TEST_PATTERN_ENABLE BIT(7) 185#define VERTICAL_COLOR_BAR_MASK 0x53 186 187#define REG_NULL 0x0000 /* Array end token */ 188 189#define OV265X_ID(_msb, _lsb) ((_msb) << 8 | (_lsb)) 190#define OV2659_ID 0x2656 191 192struct sensor_register { 193 u16 addr; 194 u8 value; 195}; 196 197struct ov2659_framesize { 198 u16 width; 199 u16 height; 200 u16 max_exp_lines; 201 const struct sensor_register *regs; 202}; 203 204struct ov2659_pll_ctrl { 205 u8 ctrl1; 206 u8 ctrl2; 207 u8 ctrl3; 208}; 209 210struct ov2659_pixfmt { 211 u32 code; 212 /* Output format Register Value (REG_FORMAT_CTRL00) */ 213 struct sensor_register *format_ctrl_regs; 214}; 215 216struct pll_ctrl_reg { 217 unsigned int div; 218 unsigned char reg; 219}; 220 221struct ov2659 { 222 struct v4l2_subdev sd; 223 struct media_pad pad; 224 struct v4l2_mbus_framefmt format; 225 unsigned int xvclk_frequency; 226 const struct ov2659_platform_data *pdata; 227 struct mutex lock; 228 struct i2c_client *client; 229 struct v4l2_ctrl_handler ctrls; 230 struct v4l2_ctrl *link_frequency; 231 const struct ov2659_framesize *frame_size; 232 struct sensor_register *format_ctrl_regs; 233 struct ov2659_pll_ctrl pll; 234 int streaming; 235}; 236 237static const struct sensor_register ov2659_init_regs[] = { 238 { REG_IO_CTRL00, 0x03 }, 239 { REG_IO_CTRL01, 0xff }, 240 { REG_IO_CTRL02, 0xe0 }, 241 { 0x3633, 0x3d }, 242 { 0x3620, 0x02 }, 243 { 0x3631, 0x11 }, 244 { 0x3612, 0x04 }, 245 { 0x3630, 0x20 }, 246 { 0x4702, 0x02 }, 247 { 0x370c, 0x34 }, 248 { REG_TIMING_HS_H, 0x00 }, 249 { REG_TIMING_HS_L, 0x00 }, 250 { REG_TIMING_VS_H, 0x00 }, 251 { REG_TIMING_VS_L, 0x00 }, 252 { REG_TIMING_HW_H, 0x06 }, 253 { REG_TIMING_HW_L, 0x5f }, 254 { REG_TIMING_VH_H, 0x04 }, 255 { REG_TIMING_VH_L, 0xb7 }, 256 { REG_TIMING_DVPHO_H, 0x03 }, 257 { REG_TIMING_DVPHO_L, 0x20 }, 258 { REG_TIMING_DVPVO_H, 0x02 }, 259 { REG_TIMING_DVPVO_L, 0x58 }, 260 { REG_TIMING_HTS_H, 0x05 }, 261 { REG_TIMING_HTS_L, 0x14 }, 262 { REG_TIMING_VTS_H, 0x02 }, 263 { REG_TIMING_VTS_L, 0x68 }, 264 { REG_TIMING_HOFFS_L, 0x08 }, 265 { REG_TIMING_VOFFS_L, 0x02 }, 266 { REG_TIMING_XINC, 0x31 }, 267 { REG_TIMING_YINC, 0x31 }, 268 { 0x3a02, 0x02 }, 269 { 0x3a03, 0x68 }, 270 { 0x3a08, 0x00 }, 271 { 0x3a09, 0x5c }, 272 { 0x3a0a, 0x00 }, 273 { 0x3a0b, 0x4d }, 274 { 0x3a0d, 0x08 }, 275 { 0x3a0e, 0x06 }, 276 { 0x3a14, 0x02 }, 277 { 0x3a15, 0x28 }, 278 { REG_DVP_CTRL02, 0x01 }, 279 { 0x3623, 0x00 }, 280 { 0x3634, 0x76 }, 281 { 0x3701, 0x44 }, 282 { 0x3702, 0x18 }, 283 { 0x3703, 0x24 }, 284 { 0x3704, 0x24 }, 285 { 0x3705, 0x0c }, 286 { REG_TIMING_VERT_FORMAT, 0x81 }, 287 { REG_TIMING_HORIZ_FORMAT, 0x01 }, 288 { 0x370a, 0x52 }, 289 { REG_VFIFO_READ_START_H, 0x00 }, 290 { REG_VFIFO_READ_START_L, 0x80 }, 291 { REG_FORMAT_CTRL00, 0x30 }, 292 { 0x5086, 0x02 }, 293 { REG_ISP_CTRL00, 0xfb }, 294 { REG_ISP_CTRL01, 0x1f }, 295 { REG_ISP_CTRL02, 0x00 }, 296 { 0x5025, 0x0e }, 297 { 0x5026, 0x18 }, 298 { 0x5027, 0x34 }, 299 { 0x5028, 0x4c }, 300 { 0x5029, 0x62 }, 301 { 0x502a, 0x74 }, 302 { 0x502b, 0x85 }, 303 { 0x502c, 0x92 }, 304 { 0x502d, 0x9e }, 305 { 0x502e, 0xb2 }, 306 { 0x502f, 0xc0 }, 307 { 0x5030, 0xcc }, 308 { 0x5031, 0xe0 }, 309 { 0x5032, 0xee }, 310 { 0x5033, 0xf6 }, 311 { 0x5034, 0x11 }, 312 { 0x5070, 0x1c }, 313 { 0x5071, 0x5b }, 314 { 0x5072, 0x05 }, 315 { 0x5073, 0x20 }, 316 { 0x5074, 0x94 }, 317 { 0x5075, 0xb4 }, 318 { 0x5076, 0xb4 }, 319 { 0x5077, 0xaf }, 320 { 0x5078, 0x05 }, 321 { REG_CMX_SIGN, 0x98 }, 322 { REG_CMX_MISC_CTRL, 0x21 }, 323 { REG_AWB_CTRL00, 0x6a }, 324 { REG_AWB_CTRL01, 0x11 }, 325 { REG_AWB_CTRL02, 0x92 }, 326 { REG_AWB_CTRL03, 0x21 }, 327 { REG_AWB_CTRL04, 0xe1 }, 328 { REG_AWB_LOCAL_LIMIT, 0x01 }, 329 { 0x503c, 0x05 }, 330 { 0x503d, 0x08 }, 331 { 0x503e, 0x08 }, 332 { 0x503f, 0x64 }, 333 { 0x5040, 0x58 }, 334 { 0x5041, 0x2a }, 335 { 0x5042, 0xc5 }, 336 { 0x5043, 0x2e }, 337 { 0x5044, 0x3a }, 338 { 0x5045, 0x3c }, 339 { 0x5046, 0x44 }, 340 { 0x5047, 0xf8 }, 341 { 0x5048, 0x08 }, 342 { REG_AWB_CTRL12, 0x70 }, 343 { REG_AWB_CTRL13, 0xf0 }, 344 { REG_AWB_CTRL14, 0xf0 }, 345 { REG_LENC_RED_X0_H, 0x03 }, 346 { REG_LENC_RED_X0_L, 0x20 }, 347 { REG_LENC_RED_Y0_H, 0x02 }, 348 { REG_LENC_RED_Y0_L, 0x5c }, 349 { REG_LENC_RED_A1, 0x48 }, 350 { REG_LENC_RED_B1, 0x00 }, 351 { REG_LENC_RED_A2_B2, 0x66 }, 352 { REG_LENC_GREEN_X0_H, 0x03 }, 353 { REG_LENC_GREEN_X0_L, 0x30 }, 354 { REG_LENC_GREEN_Y0_H, 0x02 }, 355 { REG_LENC_GREEN_Y0_L, 0x7c }, 356 { REG_LENC_GREEN_A1, 0x40 }, 357 { REG_LENC_GREEN_B1, 0x00 }, 358 { REG_LENC_GREEN_A2_B2, 0x66 }, 359 { REG_LENC_BLUE_X0_H, 0x03 }, 360 { REG_LENC_BLUE_X0_L, 0x10 }, 361 { REG_LENC_BLUE_Y0_H, 0x02 }, 362 { REG_LENC_BLUE_Y0_L, 0x7c }, 363 { REG_LENC_BLUE_A1, 0x3a }, 364 { REG_LENC_BLUE_B1, 0x00 }, 365 { REG_LENC_BLUE_A2_B2, 0x66 }, 366 { REG_CIP_CTRL00, 0x44 }, 367 { REG_SHARPENMT_THRESH1, 0x08 }, 368 { REG_SHARPENMT_THRESH2, 0x10 }, 369 { REG_SHARPENMT_OFFSET1, 0x12 }, 370 { REG_SHARPENMT_OFFSET2, 0x02 }, 371 { REG_SHARPEN_THRESH1, 0x08 }, 372 { REG_SHARPEN_THRESH2, 0x10 }, 373 { REG_CIP_CTRL01, 0xa6 }, 374 { REG_DENOISE_THRESH1, 0x08 }, 375 { REG_DENOISE_THRESH2, 0x10 }, 376 { REG_DENOISE_OFFSET1, 0x04 }, 377 { REG_DENOISE_OFFSET2, 0x12 }, 378 { 0x507e, 0x40 }, 379 { 0x507f, 0x20 }, 380 { 0x507b, 0x02 }, 381 { REG_CMX_MISC_CTRL, 0x01 }, 382 { 0x5084, 0x0c }, 383 { 0x5085, 0x3e }, 384 { 0x5005, 0x80 }, 385 { 0x3a0f, 0x30 }, 386 { 0x3a10, 0x28 }, 387 { 0x3a1b, 0x32 }, 388 { 0x3a1e, 0x26 }, 389 { 0x3a11, 0x60 }, 390 { 0x3a1f, 0x14 }, 391 { 0x5060, 0x69 }, 392 { 0x5061, 0x7d }, 393 { 0x5062, 0x7d }, 394 { 0x5063, 0x69 }, 395 { REG_NULL, 0x00 }, 396}; 397 398/* 1280X720 720p */ 399static struct sensor_register ov2659_720p[] = { 400 { REG_TIMING_HS_H, 0x00 }, 401 { REG_TIMING_HS_L, 0xa0 }, 402 { REG_TIMING_VS_H, 0x00 }, 403 { REG_TIMING_VS_L, 0xf0 }, 404 { REG_TIMING_HW_H, 0x05 }, 405 { REG_TIMING_HW_L, 0xbf }, 406 { REG_TIMING_VH_H, 0x03 }, 407 { REG_TIMING_VH_L, 0xcb }, 408 { REG_TIMING_DVPHO_H, 0x05 }, 409 { REG_TIMING_DVPHO_L, 0x00 }, 410 { REG_TIMING_DVPVO_H, 0x02 }, 411 { REG_TIMING_DVPVO_L, 0xd0 }, 412 { REG_TIMING_HTS_H, 0x06 }, 413 { REG_TIMING_HTS_L, 0x4c }, 414 { REG_TIMING_VTS_H, 0x02 }, 415 { REG_TIMING_VTS_L, 0xe8 }, 416 { REG_TIMING_HOFFS_L, 0x10 }, 417 { REG_TIMING_VOFFS_L, 0x06 }, 418 { REG_TIMING_XINC, 0x11 }, 419 { REG_TIMING_YINC, 0x11 }, 420 { REG_TIMING_VERT_FORMAT, 0x80 }, 421 { REG_TIMING_HORIZ_FORMAT, 0x00 }, 422 { 0x3a03, 0xe8 }, 423 { 0x3a09, 0x6f }, 424 { 0x3a0b, 0x5d }, 425 { 0x3a15, 0x9a }, 426 { REG_NULL, 0x00 }, 427}; 428 429/* 1600X1200 UXGA */ 430static struct sensor_register ov2659_uxga[] = { 431 { REG_TIMING_HS_H, 0x00 }, 432 { REG_TIMING_HS_L, 0x00 }, 433 { REG_TIMING_VS_H, 0x00 }, 434 { REG_TIMING_VS_L, 0x00 }, 435 { REG_TIMING_HW_H, 0x06 }, 436 { REG_TIMING_HW_L, 0x5f }, 437 { REG_TIMING_VH_H, 0x04 }, 438 { REG_TIMING_VH_L, 0xbb }, 439 { REG_TIMING_DVPHO_H, 0x06 }, 440 { REG_TIMING_DVPHO_L, 0x40 }, 441 { REG_TIMING_DVPVO_H, 0x04 }, 442 { REG_TIMING_DVPVO_L, 0xb0 }, 443 { REG_TIMING_HTS_H, 0x07 }, 444 { REG_TIMING_HTS_L, 0x9f }, 445 { REG_TIMING_VTS_H, 0x04 }, 446 { REG_TIMING_VTS_L, 0xd0 }, 447 { REG_TIMING_HOFFS_L, 0x10 }, 448 { REG_TIMING_VOFFS_L, 0x06 }, 449 { REG_TIMING_XINC, 0x11 }, 450 { REG_TIMING_YINC, 0x11 }, 451 { 0x3a02, 0x04 }, 452 { 0x3a03, 0xd0 }, 453 { 0x3a08, 0x00 }, 454 { 0x3a09, 0xb8 }, 455 { 0x3a0a, 0x00 }, 456 { 0x3a0b, 0x9a }, 457 { 0x3a0d, 0x08 }, 458 { 0x3a0e, 0x06 }, 459 { 0x3a14, 0x04 }, 460 { 0x3a15, 0x50 }, 461 { 0x3623, 0x00 }, 462 { 0x3634, 0x44 }, 463 { 0x3701, 0x44 }, 464 { 0x3702, 0x30 }, 465 { 0x3703, 0x48 }, 466 { 0x3704, 0x48 }, 467 { 0x3705, 0x18 }, 468 { REG_TIMING_VERT_FORMAT, 0x80 }, 469 { REG_TIMING_HORIZ_FORMAT, 0x00 }, 470 { 0x370a, 0x12 }, 471 { REG_VFIFO_READ_START_H, 0x00 }, 472 { REG_VFIFO_READ_START_L, 0x80 }, 473 { REG_ISP_CTRL02, 0x00 }, 474 { REG_NULL, 0x00 }, 475}; 476 477/* 1280X1024 SXGA */ 478static struct sensor_register ov2659_sxga[] = { 479 { REG_TIMING_HS_H, 0x00 }, 480 { REG_TIMING_HS_L, 0x00 }, 481 { REG_TIMING_VS_H, 0x00 }, 482 { REG_TIMING_VS_L, 0x00 }, 483 { REG_TIMING_HW_H, 0x06 }, 484 { REG_TIMING_HW_L, 0x5f }, 485 { REG_TIMING_VH_H, 0x04 }, 486 { REG_TIMING_VH_L, 0xb7 }, 487 { REG_TIMING_DVPHO_H, 0x05 }, 488 { REG_TIMING_DVPHO_L, 0x00 }, 489 { REG_TIMING_DVPVO_H, 0x04 }, 490 { REG_TIMING_DVPVO_L, 0x00 }, 491 { REG_TIMING_HTS_H, 0x07 }, 492 { REG_TIMING_HTS_L, 0x9c }, 493 { REG_TIMING_VTS_H, 0x04 }, 494 { REG_TIMING_VTS_L, 0xd0 }, 495 { REG_TIMING_HOFFS_L, 0x10 }, 496 { REG_TIMING_VOFFS_L, 0x06 }, 497 { REG_TIMING_XINC, 0x11 }, 498 { REG_TIMING_YINC, 0x11 }, 499 { 0x3a02, 0x02 }, 500 { 0x3a03, 0x68 }, 501 { 0x3a08, 0x00 }, 502 { 0x3a09, 0x5c }, 503 { 0x3a0a, 0x00 }, 504 { 0x3a0b, 0x4d }, 505 { 0x3a0d, 0x08 }, 506 { 0x3a0e, 0x06 }, 507 { 0x3a14, 0x02 }, 508 { 0x3a15, 0x28 }, 509 { 0x3623, 0x00 }, 510 { 0x3634, 0x76 }, 511 { 0x3701, 0x44 }, 512 { 0x3702, 0x18 }, 513 { 0x3703, 0x24 }, 514 { 0x3704, 0x24 }, 515 { 0x3705, 0x0c }, 516 { REG_TIMING_VERT_FORMAT, 0x80 }, 517 { REG_TIMING_HORIZ_FORMAT, 0x00 }, 518 { 0x370a, 0x52 }, 519 { REG_VFIFO_READ_START_H, 0x00 }, 520 { REG_VFIFO_READ_START_L, 0x80 }, 521 { REG_ISP_CTRL02, 0x00 }, 522 { REG_NULL, 0x00 }, 523}; 524 525/* 1024X768 SXGA */ 526static struct sensor_register ov2659_xga[] = { 527 { REG_TIMING_HS_H, 0x00 }, 528 { REG_TIMING_HS_L, 0x00 }, 529 { REG_TIMING_VS_H, 0x00 }, 530 { REG_TIMING_VS_L, 0x00 }, 531 { REG_TIMING_HW_H, 0x06 }, 532 { REG_TIMING_HW_L, 0x5f }, 533 { REG_TIMING_VH_H, 0x04 }, 534 { REG_TIMING_VH_L, 0xb7 }, 535 { REG_TIMING_DVPHO_H, 0x04 }, 536 { REG_TIMING_DVPHO_L, 0x00 }, 537 { REG_TIMING_DVPVO_H, 0x03 }, 538 { REG_TIMING_DVPVO_L, 0x00 }, 539 { REG_TIMING_HTS_H, 0x07 }, 540 { REG_TIMING_HTS_L, 0x9c }, 541 { REG_TIMING_VTS_H, 0x04 }, 542 { REG_TIMING_VTS_L, 0xd0 }, 543 { REG_TIMING_HOFFS_L, 0x10 }, 544 { REG_TIMING_VOFFS_L, 0x06 }, 545 { REG_TIMING_XINC, 0x11 }, 546 { REG_TIMING_YINC, 0x11 }, 547 { 0x3a02, 0x02 }, 548 { 0x3a03, 0x68 }, 549 { 0x3a08, 0x00 }, 550 { 0x3a09, 0x5c }, 551 { 0x3a0a, 0x00 }, 552 { 0x3a0b, 0x4d }, 553 { 0x3a0d, 0x08 }, 554 { 0x3a0e, 0x06 }, 555 { 0x3a14, 0x02 }, 556 { 0x3a15, 0x28 }, 557 { 0x3623, 0x00 }, 558 { 0x3634, 0x76 }, 559 { 0x3701, 0x44 }, 560 { 0x3702, 0x18 }, 561 { 0x3703, 0x24 }, 562 { 0x3704, 0x24 }, 563 { 0x3705, 0x0c }, 564 { REG_TIMING_VERT_FORMAT, 0x80 }, 565 { REG_TIMING_HORIZ_FORMAT, 0x00 }, 566 { 0x370a, 0x52 }, 567 { REG_VFIFO_READ_START_H, 0x00 }, 568 { REG_VFIFO_READ_START_L, 0x80 }, 569 { REG_ISP_CTRL02, 0x00 }, 570 { REG_NULL, 0x00 }, 571}; 572 573/* 800X600 SVGA */ 574static struct sensor_register ov2659_svga[] = { 575 { REG_TIMING_HS_H, 0x00 }, 576 { REG_TIMING_HS_L, 0x00 }, 577 { REG_TIMING_VS_H, 0x00 }, 578 { REG_TIMING_VS_L, 0x00 }, 579 { REG_TIMING_HW_H, 0x06 }, 580 { REG_TIMING_HW_L, 0x5f }, 581 { REG_TIMING_VH_H, 0x04 }, 582 { REG_TIMING_VH_L, 0xb7 }, 583 { REG_TIMING_DVPHO_H, 0x03 }, 584 { REG_TIMING_DVPHO_L, 0x20 }, 585 { REG_TIMING_DVPVO_H, 0x02 }, 586 { REG_TIMING_DVPVO_L, 0x58 }, 587 { REG_TIMING_HTS_H, 0x05 }, 588 { REG_TIMING_HTS_L, 0x14 }, 589 { REG_TIMING_VTS_H, 0x02 }, 590 { REG_TIMING_VTS_L, 0x68 }, 591 { REG_TIMING_HOFFS_L, 0x08 }, 592 { REG_TIMING_VOFFS_L, 0x02 }, 593 { REG_TIMING_XINC, 0x31 }, 594 { REG_TIMING_YINC, 0x31 }, 595 { 0x3a02, 0x02 }, 596 { 0x3a03, 0x68 }, 597 { 0x3a08, 0x00 }, 598 { 0x3a09, 0x5c }, 599 { 0x3a0a, 0x00 }, 600 { 0x3a0b, 0x4d }, 601 { 0x3a0d, 0x08 }, 602 { 0x3a0e, 0x06 }, 603 { 0x3a14, 0x02 }, 604 { 0x3a15, 0x28 }, 605 { 0x3623, 0x00 }, 606 { 0x3634, 0x76 }, 607 { 0x3701, 0x44 }, 608 { 0x3702, 0x18 }, 609 { 0x3703, 0x24 }, 610 { 0x3704, 0x24 }, 611 { 0x3705, 0x0c }, 612 { REG_TIMING_VERT_FORMAT, 0x81 }, 613 { REG_TIMING_HORIZ_FORMAT, 0x01 }, 614 { 0x370a, 0x52 }, 615 { REG_VFIFO_READ_START_H, 0x00 }, 616 { REG_VFIFO_READ_START_L, 0x80 }, 617 { REG_ISP_CTRL02, 0x00 }, 618 { REG_NULL, 0x00 }, 619}; 620 621/* 640X480 VGA */ 622static struct sensor_register ov2659_vga[] = { 623 { REG_TIMING_HS_H, 0x00 }, 624 { REG_TIMING_HS_L, 0x00 }, 625 { REG_TIMING_VS_H, 0x00 }, 626 { REG_TIMING_VS_L, 0x00 }, 627 { REG_TIMING_HW_H, 0x06 }, 628 { REG_TIMING_HW_L, 0x5f }, 629 { REG_TIMING_VH_H, 0x04 }, 630 { REG_TIMING_VH_L, 0xb7 }, 631 { REG_TIMING_DVPHO_H, 0x02 }, 632 { REG_TIMING_DVPHO_L, 0x80 }, 633 { REG_TIMING_DVPVO_H, 0x01 }, 634 { REG_TIMING_DVPVO_L, 0xe0 }, 635 { REG_TIMING_HTS_H, 0x05 }, 636 { REG_TIMING_HTS_L, 0x14 }, 637 { REG_TIMING_VTS_H, 0x02 }, 638 { REG_TIMING_VTS_L, 0x68 }, 639 { REG_TIMING_HOFFS_L, 0x08 }, 640 { REG_TIMING_VOFFS_L, 0x02 }, 641 { REG_TIMING_XINC, 0x31 }, 642 { REG_TIMING_YINC, 0x31 }, 643 { 0x3a02, 0x02 }, 644 { 0x3a03, 0x68 }, 645 { 0x3a08, 0x00 }, 646 { 0x3a09, 0x5c }, 647 { 0x3a0a, 0x00 }, 648 { 0x3a0b, 0x4d }, 649 { 0x3a0d, 0x08 }, 650 { 0x3a0e, 0x06 }, 651 { 0x3a14, 0x02 }, 652 { 0x3a15, 0x28 }, 653 { 0x3623, 0x00 }, 654 { 0x3634, 0x76 }, 655 { 0x3701, 0x44 }, 656 { 0x3702, 0x18 }, 657 { 0x3703, 0x24 }, 658 { 0x3704, 0x24 }, 659 { 0x3705, 0x0c }, 660 { REG_TIMING_VERT_FORMAT, 0x81 }, 661 { REG_TIMING_HORIZ_FORMAT, 0x01 }, 662 { 0x370a, 0x52 }, 663 { REG_VFIFO_READ_START_H, 0x00 }, 664 { REG_VFIFO_READ_START_L, 0x80 }, 665 { REG_ISP_CTRL02, 0x10 }, 666 { REG_NULL, 0x00 }, 667}; 668 669/* 320X240 QVGA */ 670static struct sensor_register ov2659_qvga[] = { 671 { REG_TIMING_HS_H, 0x00 }, 672 { REG_TIMING_HS_L, 0x00 }, 673 { REG_TIMING_VS_H, 0x00 }, 674 { REG_TIMING_VS_L, 0x00 }, 675 { REG_TIMING_HW_H, 0x06 }, 676 { REG_TIMING_HW_L, 0x5f }, 677 { REG_TIMING_VH_H, 0x04 }, 678 { REG_TIMING_VH_L, 0xb7 }, 679 { REG_TIMING_DVPHO_H, 0x01 }, 680 { REG_TIMING_DVPHO_L, 0x40 }, 681 { REG_TIMING_DVPVO_H, 0x00 }, 682 { REG_TIMING_DVPVO_L, 0xf0 }, 683 { REG_TIMING_HTS_H, 0x05 }, 684 { REG_TIMING_HTS_L, 0x14 }, 685 { REG_TIMING_VTS_H, 0x02 }, 686 { REG_TIMING_VTS_L, 0x68 }, 687 { REG_TIMING_HOFFS_L, 0x08 }, 688 { REG_TIMING_VOFFS_L, 0x02 }, 689 { REG_TIMING_XINC, 0x31 }, 690 { REG_TIMING_YINC, 0x31 }, 691 { 0x3a02, 0x02 }, 692 { 0x3a03, 0x68 }, 693 { 0x3a08, 0x00 }, 694 { 0x3a09, 0x5c }, 695 { 0x3a0a, 0x00 }, 696 { 0x3a0b, 0x4d }, 697 { 0x3a0d, 0x08 }, 698 { 0x3a0e, 0x06 }, 699 { 0x3a14, 0x02 }, 700 { 0x3a15, 0x28 }, 701 { 0x3623, 0x00 }, 702 { 0x3634, 0x76 }, 703 { 0x3701, 0x44 }, 704 { 0x3702, 0x18 }, 705 { 0x3703, 0x24 }, 706 { 0x3704, 0x24 }, 707 { 0x3705, 0x0c }, 708 { REG_TIMING_VERT_FORMAT, 0x81 }, 709 { REG_TIMING_HORIZ_FORMAT, 0x01 }, 710 { 0x370a, 0x52 }, 711 { REG_VFIFO_READ_START_H, 0x00 }, 712 { REG_VFIFO_READ_START_L, 0x80 }, 713 { REG_ISP_CTRL02, 0x10 }, 714 { REG_NULL, 0x00 }, 715}; 716 717static const struct pll_ctrl_reg ctrl3[] = { 718 { 1, 0x00 }, 719 { 2, 0x02 }, 720 { 3, 0x03 }, 721 { 4, 0x06 }, 722 { 6, 0x0d }, 723 { 8, 0x0e }, 724 { 12, 0x0f }, 725 { 16, 0x12 }, 726 { 24, 0x13 }, 727 { 32, 0x16 }, 728 { 48, 0x1b }, 729 { 64, 0x1e }, 730 { 96, 0x1f }, 731 { 0, 0x00 }, 732}; 733 734static const struct pll_ctrl_reg ctrl1[] = { 735 { 2, 0x10 }, 736 { 4, 0x20 }, 737 { 6, 0x30 }, 738 { 8, 0x40 }, 739 { 10, 0x50 }, 740 { 12, 0x60 }, 741 { 14, 0x70 }, 742 { 16, 0x80 }, 743 { 18, 0x90 }, 744 { 20, 0xa0 }, 745 { 22, 0xb0 }, 746 { 24, 0xc0 }, 747 { 26, 0xd0 }, 748 { 28, 0xe0 }, 749 { 30, 0xf0 }, 750 { 0, 0x00 }, 751}; 752 753static const struct ov2659_framesize ov2659_framesizes[] = { 754 { /* QVGA */ 755 .width = 320, 756 .height = 240, 757 .regs = ov2659_qvga, 758 .max_exp_lines = 248, 759 }, { /* VGA */ 760 .width = 640, 761 .height = 480, 762 .regs = ov2659_vga, 763 .max_exp_lines = 498, 764 }, { /* SVGA */ 765 .width = 800, 766 .height = 600, 767 .regs = ov2659_svga, 768 .max_exp_lines = 498, 769 }, { /* XGA */ 770 .width = 1024, 771 .height = 768, 772 .regs = ov2659_xga, 773 .max_exp_lines = 498, 774 }, { /* 720P */ 775 .width = 1280, 776 .height = 720, 777 .regs = ov2659_720p, 778 .max_exp_lines = 498, 779 }, { /* SXGA */ 780 .width = 1280, 781 .height = 1024, 782 .regs = ov2659_sxga, 783 .max_exp_lines = 1048, 784 }, { /* UXGA */ 785 .width = 1600, 786 .height = 1200, 787 .regs = ov2659_uxga, 788 .max_exp_lines = 498, 789 }, 790}; 791 792/* YUV422 YUYV*/ 793static struct sensor_register ov2659_format_yuyv[] = { 794 { REG_FORMAT_CTRL00, 0x30 }, 795 { REG_NULL, 0x0 }, 796}; 797 798/* YUV422 UYVY */ 799static struct sensor_register ov2659_format_uyvy[] = { 800 { REG_FORMAT_CTRL00, 0x32 }, 801 { REG_NULL, 0x0 }, 802}; 803 804/* Raw Bayer BGGR */ 805static struct sensor_register ov2659_format_bggr[] = { 806 { REG_FORMAT_CTRL00, 0x00 }, 807 { REG_NULL, 0x0 }, 808}; 809 810/* RGB565 */ 811static struct sensor_register ov2659_format_rgb565[] = { 812 { REG_FORMAT_CTRL00, 0x60 }, 813 { REG_NULL, 0x0 }, 814}; 815 816static const struct ov2659_pixfmt ov2659_formats[] = { 817 { 818 .code = MEDIA_BUS_FMT_YUYV8_2X8, 819 .format_ctrl_regs = ov2659_format_yuyv, 820 }, { 821 .code = MEDIA_BUS_FMT_UYVY8_2X8, 822 .format_ctrl_regs = ov2659_format_uyvy, 823 }, { 824 .code = MEDIA_BUS_FMT_RGB565_2X8_BE, 825 .format_ctrl_regs = ov2659_format_rgb565, 826 }, { 827 .code = MEDIA_BUS_FMT_SBGGR8_1X8, 828 .format_ctrl_regs = ov2659_format_bggr, 829 }, 830}; 831 832static inline struct ov2659 *to_ov2659(struct v4l2_subdev *sd) 833{ 834 return container_of(sd, struct ov2659, sd); 835} 836 837/* sensor register write */ 838static int ov2659_write(struct i2c_client *client, u16 reg, u8 val) 839{ 840 struct i2c_msg msg; 841 u8 buf[3]; 842 int ret; 843 844 buf[0] = reg >> 8; 845 buf[1] = reg & 0xFF; 846 buf[2] = val; 847 848 msg.addr = client->addr; 849 msg.flags = client->flags; 850 msg.buf = buf; 851 msg.len = sizeof(buf); 852 853 ret = i2c_transfer(client->adapter, &msg, 1); 854 if (ret >= 0) 855 return 0; 856 857 dev_dbg(&client->dev, 858 "ov2659 write reg(0x%x val:0x%x) failed !\n", reg, val); 859 860 return ret; 861} 862 863/* sensor register read */ 864static int ov2659_read(struct i2c_client *client, u16 reg, u8 *val) 865{ 866 struct i2c_msg msg[2]; 867 u8 buf[2]; 868 int ret; 869 870 buf[0] = reg >> 8; 871 buf[1] = reg & 0xFF; 872 873 msg[0].addr = client->addr; 874 msg[0].flags = client->flags; 875 msg[0].buf = buf; 876 msg[0].len = sizeof(buf); 877 878 msg[1].addr = client->addr; 879 msg[1].flags = client->flags | I2C_M_RD; 880 msg[1].buf = buf; 881 msg[1].len = 1; 882 883 ret = i2c_transfer(client->adapter, msg, 2); 884 if (ret >= 0) { 885 *val = buf[0]; 886 return 0; 887 } 888 889 dev_dbg(&client->dev, 890 "ov2659 read reg(0x%x val:0x%x) failed !\n", reg, *val); 891 892 return ret; 893} 894 895static int ov2659_write_array(struct i2c_client *client, 896 const struct sensor_register *regs) 897{ 898 int i, ret = 0; 899 900 for (i = 0; ret == 0 && regs[i].addr; i++) 901 ret = ov2659_write(client, regs[i].addr, regs[i].value); 902 903 return ret; 904} 905 906static void ov2659_pll_calc_params(struct ov2659 *ov2659) 907{ 908 const struct ov2659_platform_data *pdata = ov2659->pdata; 909 u8 ctrl1_reg = 0, ctrl2_reg = 0, ctrl3_reg = 0; 910 struct i2c_client *client = ov2659->client; 911 unsigned int desired = pdata->link_frequency; 912 u32 s_prediv = 1, s_postdiv = 1, s_mult = 1; 913 u32 prediv, postdiv, mult; 914 u32 bestdelta = -1; 915 u32 delta, actual; 916 int i, j; 917 918 for (i = 0; ctrl1[i].div != 0; i++) { 919 postdiv = ctrl1[i].div; 920 for (j = 0; ctrl3[j].div != 0; j++) { 921 prediv = ctrl3[j].div; 922 for (mult = 1; mult <= 63; mult++) { 923 actual = ov2659->xvclk_frequency; 924 actual *= mult; 925 actual /= prediv; 926 actual /= postdiv; 927 delta = actual - desired; 928 delta = abs(delta); 929 930 if ((delta < bestdelta) || (bestdelta == -1)) { 931 bestdelta = delta; 932 s_mult = mult; 933 s_prediv = prediv; 934 s_postdiv = postdiv; 935 ctrl1_reg = ctrl1[i].reg; 936 ctrl2_reg = mult; 937 ctrl3_reg = ctrl3[j].reg; 938 } 939 } 940 } 941 } 942 943 ov2659->pll.ctrl1 = ctrl1_reg; 944 ov2659->pll.ctrl2 = ctrl2_reg; 945 ov2659->pll.ctrl3 = ctrl3_reg; 946 947 dev_dbg(&client->dev, 948 "Actual reg config: ctrl1_reg: %02x ctrl2_reg: %02x ctrl3_reg: %02x\n", 949 ctrl1_reg, ctrl2_reg, ctrl3_reg); 950} 951 952static int ov2659_set_pixel_clock(struct ov2659 *ov2659) 953{ 954 struct i2c_client *client = ov2659->client; 955 struct sensor_register pll_regs[] = { 956 {REG_SC_PLL_CTRL1, ov2659->pll.ctrl1}, 957 {REG_SC_PLL_CTRL2, ov2659->pll.ctrl2}, 958 {REG_SC_PLL_CTRL3, ov2659->pll.ctrl3}, 959 {REG_NULL, 0x00}, 960 }; 961 962 dev_dbg(&client->dev, "%s\n", __func__); 963 964 return ov2659_write_array(client, pll_regs); 965}; 966 967static void ov2659_get_default_format(struct v4l2_mbus_framefmt *format) 968{ 969 format->width = ov2659_framesizes[2].width; 970 format->height = ov2659_framesizes[2].height; 971 format->colorspace = V4L2_COLORSPACE_SRGB; 972 format->code = ov2659_formats[0].code; 973 format->field = V4L2_FIELD_NONE; 974} 975 976static void ov2659_set_streaming(struct ov2659 *ov2659, int on) 977{ 978 struct i2c_client *client = ov2659->client; 979 int ret; 980 981 on = !!on; 982 983 dev_dbg(&client->dev, "%s: on: %d\n", __func__, on); 984 985 ret = ov2659_write(client, REG_SOFTWARE_STANDBY, on); 986 if (ret) 987 dev_err(&client->dev, "ov2659 soft standby failed\n"); 988} 989 990static int ov2659_init(struct v4l2_subdev *sd, u32 val) 991{ 992 struct i2c_client *client = v4l2_get_subdevdata(sd); 993 994 return ov2659_write_array(client, ov2659_init_regs); 995} 996 997/* 998 * V4L2 subdev video and pad level operations 999 */ 1000 1001static int ov2659_enum_mbus_code(struct v4l2_subdev *sd, 1002 struct v4l2_subdev_pad_config *cfg, 1003 struct v4l2_subdev_mbus_code_enum *code) 1004{ 1005 struct i2c_client *client = v4l2_get_subdevdata(sd); 1006 1007 dev_dbg(&client->dev, "%s:\n", __func__); 1008 1009 if (code->index >= ARRAY_SIZE(ov2659_formats)) 1010 return -EINVAL; 1011 1012 code->code = ov2659_formats[code->index].code; 1013 1014 return 0; 1015} 1016 1017static int ov2659_enum_frame_sizes(struct v4l2_subdev *sd, 1018 struct v4l2_subdev_pad_config *cfg, 1019 struct v4l2_subdev_frame_size_enum *fse) 1020{ 1021 struct i2c_client *client = v4l2_get_subdevdata(sd); 1022 int i = ARRAY_SIZE(ov2659_formats); 1023 1024 dev_dbg(&client->dev, "%s:\n", __func__); 1025 1026 if (fse->index >= ARRAY_SIZE(ov2659_framesizes)) 1027 return -EINVAL; 1028 1029 while (--i) 1030 if (fse->code == ov2659_formats[i].code) 1031 break; 1032 1033 fse->code = ov2659_formats[i].code; 1034 1035 fse->min_width = ov2659_framesizes[fse->index].width; 1036 fse->max_width = fse->min_width; 1037 fse->max_height = ov2659_framesizes[fse->index].height; 1038 fse->min_height = fse->max_height; 1039 1040 return 0; 1041} 1042 1043static int ov2659_get_fmt(struct v4l2_subdev *sd, 1044 struct v4l2_subdev_pad_config *cfg, 1045 struct v4l2_subdev_format *fmt) 1046{ 1047 struct i2c_client *client = v4l2_get_subdevdata(sd); 1048 struct ov2659 *ov2659 = to_ov2659(sd); 1049 struct v4l2_mbus_framefmt *mf; 1050 1051 dev_dbg(&client->dev, "ov2659_get_fmt\n"); 1052 1053 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { 1054 mf = v4l2_subdev_get_try_format(sd, cfg, 0); 1055 mutex_lock(&ov2659->lock); 1056 fmt->format = *mf; 1057 mutex_unlock(&ov2659->lock); 1058 return 0; 1059 } 1060 1061 mutex_lock(&ov2659->lock); 1062 fmt->format = ov2659->format; 1063 mutex_unlock(&ov2659->lock); 1064 1065 dev_dbg(&client->dev, "ov2659_get_fmt: %x %dx%d\n", 1066 ov2659->format.code, ov2659->format.width, 1067 ov2659->format.height); 1068 1069 return 0; 1070} 1071 1072static void __ov2659_try_frame_size(struct v4l2_mbus_framefmt *mf, 1073 const struct ov2659_framesize **size) 1074{ 1075 const struct ov2659_framesize *fsize = &ov2659_framesizes[0]; 1076 const struct ov2659_framesize *match = NULL; 1077 int i = ARRAY_SIZE(ov2659_framesizes); 1078 unsigned int min_err = UINT_MAX; 1079 1080 while (i--) { 1081 int err = abs(fsize->width - mf->width) 1082 + abs(fsize->height - mf->height); 1083 if ((err < min_err) && (fsize->regs[0].addr)) { 1084 min_err = err; 1085 match = fsize; 1086 } 1087 fsize++; 1088 } 1089 1090 if (!match) 1091 match = &ov2659_framesizes[2]; 1092 1093 mf->width = match->width; 1094 mf->height = match->height; 1095 1096 if (size) 1097 *size = match; 1098} 1099 1100static int ov2659_set_fmt(struct v4l2_subdev *sd, 1101 struct v4l2_subdev_pad_config *cfg, 1102 struct v4l2_subdev_format *fmt) 1103{ 1104 struct i2c_client *client = v4l2_get_subdevdata(sd); 1105 unsigned int index = ARRAY_SIZE(ov2659_formats); 1106 struct v4l2_mbus_framefmt *mf = &fmt->format; 1107 const struct ov2659_framesize *size = NULL; 1108 struct ov2659 *ov2659 = to_ov2659(sd); 1109 int ret = 0; 1110 1111 dev_dbg(&client->dev, "ov2659_set_fmt\n"); 1112 1113 __ov2659_try_frame_size(mf, &size); 1114 1115 while (--index >= 0) 1116 if (ov2659_formats[index].code == mf->code) 1117 break; 1118 1119 if (index < 0) 1120 return -EINVAL; 1121 1122 mf->colorspace = V4L2_COLORSPACE_SRGB; 1123 mf->code = ov2659_formats[index].code; 1124 mf->field = V4L2_FIELD_NONE; 1125 1126 mutex_lock(&ov2659->lock); 1127 1128 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { 1129 mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad); 1130 *mf = fmt->format; 1131 } else { 1132 s64 val; 1133 1134 if (ov2659->streaming) { 1135 mutex_unlock(&ov2659->lock); 1136 return -EBUSY; 1137 } 1138 1139 ov2659->frame_size = size; 1140 ov2659->format = fmt->format; 1141 ov2659->format_ctrl_regs = 1142 ov2659_formats[index].format_ctrl_regs; 1143 1144 if (ov2659->format.code != MEDIA_BUS_FMT_SBGGR8_1X8) 1145 val = ov2659->pdata->link_frequency / 2; 1146 else 1147 val = ov2659->pdata->link_frequency; 1148 1149 ret = v4l2_ctrl_s_ctrl_int64(ov2659->link_frequency, val); 1150 if (ret < 0) 1151 dev_warn(&client->dev, 1152 "failed to set link_frequency rate (%d)\n", 1153 ret); 1154 } 1155 1156 mutex_unlock(&ov2659->lock); 1157 return ret; 1158} 1159 1160static int ov2659_set_frame_size(struct ov2659 *ov2659) 1161{ 1162 struct i2c_client *client = ov2659->client; 1163 1164 dev_dbg(&client->dev, "%s\n", __func__); 1165 1166 return ov2659_write_array(ov2659->client, ov2659->frame_size->regs); 1167} 1168 1169static int ov2659_set_format(struct ov2659 *ov2659) 1170{ 1171 struct i2c_client *client = ov2659->client; 1172 1173 dev_dbg(&client->dev, "%s\n", __func__); 1174 1175 return ov2659_write_array(ov2659->client, ov2659->format_ctrl_regs); 1176} 1177 1178static int ov2659_s_stream(struct v4l2_subdev *sd, int on) 1179{ 1180 struct i2c_client *client = v4l2_get_subdevdata(sd); 1181 struct ov2659 *ov2659 = to_ov2659(sd); 1182 int ret = 0; 1183 1184 dev_dbg(&client->dev, "%s: on: %d\n", __func__, on); 1185 1186 mutex_lock(&ov2659->lock); 1187 1188 on = !!on; 1189 1190 if (ov2659->streaming == on) 1191 goto unlock; 1192 1193 if (!on) { 1194 /* Stop Streaming Sequence */ 1195 ov2659_set_streaming(ov2659, 0); 1196 ov2659->streaming = on; 1197 goto unlock; 1198 } 1199 1200 ov2659_set_pixel_clock(ov2659); 1201 ov2659_set_frame_size(ov2659); 1202 ov2659_set_format(ov2659); 1203 ov2659_set_streaming(ov2659, 1); 1204 ov2659->streaming = on; 1205 1206unlock: 1207 mutex_unlock(&ov2659->lock); 1208 return ret; 1209} 1210 1211static int ov2659_set_test_pattern(struct ov2659 *ov2659, int value) 1212{ 1213 struct i2c_client *client = v4l2_get_subdevdata(&ov2659->sd); 1214 int ret; 1215 u8 val; 1216 1217 ret = ov2659_read(client, REG_PRE_ISP_CTRL00, &val); 1218 if (ret < 0) 1219 return ret; 1220 1221 switch (value) { 1222 case 0: 1223 val &= ~TEST_PATTERN_ENABLE; 1224 break; 1225 case 1: 1226 val &= VERTICAL_COLOR_BAR_MASK; 1227 val |= TEST_PATTERN_ENABLE; 1228 break; 1229 } 1230 1231 return ov2659_write(client, REG_PRE_ISP_CTRL00, val); 1232} 1233 1234static int ov2659_s_ctrl(struct v4l2_ctrl *ctrl) 1235{ 1236 struct ov2659 *ov2659 = 1237 container_of(ctrl->handler, struct ov2659, ctrls); 1238 1239 switch (ctrl->id) { 1240 case V4L2_CID_TEST_PATTERN: 1241 return ov2659_set_test_pattern(ov2659, ctrl->val); 1242 } 1243 1244 return 0; 1245} 1246 1247static struct v4l2_ctrl_ops ov2659_ctrl_ops = { 1248 .s_ctrl = ov2659_s_ctrl, 1249}; 1250 1251static const char * const ov2659_test_pattern_menu[] = { 1252 "Disabled", 1253 "Vertical Color Bars", 1254}; 1255 1256/* ----------------------------------------------------------------------------- 1257 * V4L2 subdev internal operations 1258 */ 1259 1260static int ov2659_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) 1261{ 1262 struct i2c_client *client = v4l2_get_subdevdata(sd); 1263 struct v4l2_mbus_framefmt *format = 1264 v4l2_subdev_get_try_format(sd, fh->pad, 0); 1265 1266 dev_dbg(&client->dev, "%s:\n", __func__); 1267 1268 ov2659_get_default_format(format); 1269 1270 return 0; 1271} 1272 1273static const struct v4l2_subdev_core_ops ov2659_subdev_core_ops = { 1274 .log_status = v4l2_ctrl_subdev_log_status, 1275 .subscribe_event = v4l2_ctrl_subdev_subscribe_event, 1276 .unsubscribe_event = v4l2_event_subdev_unsubscribe, 1277}; 1278 1279static const struct v4l2_subdev_video_ops ov2659_subdev_video_ops = { 1280 .s_stream = ov2659_s_stream, 1281}; 1282 1283static const struct v4l2_subdev_pad_ops ov2659_subdev_pad_ops = { 1284 .enum_mbus_code = ov2659_enum_mbus_code, 1285 .enum_frame_size = ov2659_enum_frame_sizes, 1286 .get_fmt = ov2659_get_fmt, 1287 .set_fmt = ov2659_set_fmt, 1288}; 1289 1290static const struct v4l2_subdev_ops ov2659_subdev_ops = { 1291 .core = &ov2659_subdev_core_ops, 1292 .video = &ov2659_subdev_video_ops, 1293 .pad = &ov2659_subdev_pad_ops, 1294}; 1295 1296static const struct v4l2_subdev_internal_ops ov2659_subdev_internal_ops = { 1297 .open = ov2659_open, 1298}; 1299 1300static int ov2659_detect(struct v4l2_subdev *sd) 1301{ 1302 struct i2c_client *client = v4l2_get_subdevdata(sd); 1303 u8 pid, ver; 1304 int ret; 1305 1306 dev_dbg(&client->dev, "%s:\n", __func__); 1307 1308 ret = ov2659_write(client, REG_SOFTWARE_RESET, 0x01); 1309 if (ret != 0) { 1310 dev_err(&client->dev, "Sensor soft reset failed\n"); 1311 return -ENODEV; 1312 } 1313 usleep_range(1000, 2000); 1314 1315 ret = ov2659_init(sd, 0); 1316 if (ret < 0) 1317 return ret; 1318 1319 /* Check sensor revision */ 1320 ret = ov2659_read(client, REG_SC_CHIP_ID_H, &pid); 1321 if (!ret) 1322 ret = ov2659_read(client, REG_SC_CHIP_ID_L, &ver); 1323 1324 if (!ret) { 1325 unsigned short id; 1326 1327 id = OV265X_ID(pid, ver); 1328 if (id != OV2659_ID) 1329 dev_err(&client->dev, 1330 "Sensor detection failed (%04X, %d)\n", 1331 id, ret); 1332 else 1333 dev_info(&client->dev, "Found OV%04X sensor\n", id); 1334 } 1335 1336 return ret; 1337} 1338 1339static struct ov2659_platform_data * 1340ov2659_get_pdata(struct i2c_client *client) 1341{ 1342 struct ov2659_platform_data *pdata; 1343 struct device_node *endpoint; 1344 int ret; 1345 1346 if (!IS_ENABLED(CONFIG_OF) || !client->dev.of_node) 1347 return client->dev.platform_data; 1348 1349 endpoint = of_graph_get_next_endpoint(client->dev.of_node, NULL); 1350 if (!endpoint) 1351 return NULL; 1352 1353 pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL); 1354 if (!pdata) 1355 goto done; 1356 1357 ret = of_property_read_u64(endpoint, "link-frequencies", 1358 &pdata->link_frequency); 1359 if (ret) { 1360 dev_err(&client->dev, "link-frequencies property not found\n"); 1361 pdata = NULL; 1362 } 1363 1364done: 1365 of_node_put(endpoint); 1366 return pdata; 1367} 1368 1369static int ov2659_probe(struct i2c_client *client, 1370 const struct i2c_device_id *id) 1371{ 1372 const struct ov2659_platform_data *pdata = ov2659_get_pdata(client); 1373 struct v4l2_subdev *sd; 1374 struct ov2659 *ov2659; 1375 struct clk *clk; 1376 int ret; 1377 1378 if (!pdata) { 1379 dev_err(&client->dev, "platform data not specified\n"); 1380 return -EINVAL; 1381 } 1382 1383 ov2659 = devm_kzalloc(&client->dev, sizeof(*ov2659), GFP_KERNEL); 1384 if (!ov2659) 1385 return -ENOMEM; 1386 1387 ov2659->pdata = pdata; 1388 ov2659->client = client; 1389 1390 clk = devm_clk_get(&client->dev, "xvclk"); 1391 if (IS_ERR(clk)) 1392 return PTR_ERR(clk); 1393 1394 ov2659->xvclk_frequency = clk_get_rate(clk); 1395 if (ov2659->xvclk_frequency < 6000000 || 1396 ov2659->xvclk_frequency > 27000000) 1397 return -EINVAL; 1398 1399 v4l2_ctrl_handler_init(&ov2659->ctrls, 2); 1400 ov2659->link_frequency = 1401 v4l2_ctrl_new_std(&ov2659->ctrls, &ov2659_ctrl_ops, 1402 V4L2_CID_PIXEL_RATE, 1403 pdata->link_frequency / 2, 1404 pdata->link_frequency, 1, 1405 pdata->link_frequency); 1406 v4l2_ctrl_new_std_menu_items(&ov2659->ctrls, &ov2659_ctrl_ops, 1407 V4L2_CID_TEST_PATTERN, 1408 ARRAY_SIZE(ov2659_test_pattern_menu) - 1, 1409 0, 0, ov2659_test_pattern_menu); 1410 ov2659->sd.ctrl_handler = &ov2659->ctrls; 1411 1412 if (ov2659->ctrls.error) { 1413 dev_err(&client->dev, "%s: control initialization error %d\n", 1414 __func__, ov2659->ctrls.error); 1415 return ov2659->ctrls.error; 1416 } 1417 1418 sd = &ov2659->sd; 1419 client->flags |= I2C_CLIENT_SCCB; 1420 v4l2_i2c_subdev_init(sd, client, &ov2659_subdev_ops); 1421 1422 sd->internal_ops = &ov2659_subdev_internal_ops; 1423 sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | 1424 V4L2_SUBDEV_FL_HAS_EVENTS; 1425 1426#if defined(CONFIG_MEDIA_CONTROLLER) 1427 ov2659->pad.flags = MEDIA_PAD_FL_SOURCE; 1428 sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR; 1429 ret = media_entity_init(&sd->entity, 1, &ov2659->pad, 0); 1430 if (ret < 0) { 1431 v4l2_ctrl_handler_free(&ov2659->ctrls); 1432 return ret; 1433 } 1434#endif 1435 1436 mutex_init(&ov2659->lock); 1437 1438 ov2659_get_default_format(&ov2659->format); 1439 ov2659->frame_size = &ov2659_framesizes[2]; 1440 ov2659->format_ctrl_regs = ov2659_formats[0].format_ctrl_regs; 1441 1442 ret = ov2659_detect(sd); 1443 if (ret < 0) 1444 goto error; 1445 1446 /* Calculate the PLL register value needed */ 1447 ov2659_pll_calc_params(ov2659); 1448 1449 ret = v4l2_async_register_subdev(&ov2659->sd); 1450 if (ret) 1451 goto error; 1452 1453 dev_info(&client->dev, "%s sensor driver registered !!\n", sd->name); 1454 1455 return 0; 1456 1457error: 1458 v4l2_ctrl_handler_free(&ov2659->ctrls); 1459#if defined(CONFIG_MEDIA_CONTROLLER) 1460 media_entity_cleanup(&sd->entity); 1461#endif 1462 mutex_destroy(&ov2659->lock); 1463 return ret; 1464} 1465 1466static int ov2659_remove(struct i2c_client *client) 1467{ 1468 struct v4l2_subdev *sd = i2c_get_clientdata(client); 1469 struct ov2659 *ov2659 = to_ov2659(sd); 1470 1471 v4l2_ctrl_handler_free(&ov2659->ctrls); 1472 v4l2_async_unregister_subdev(sd); 1473#if defined(CONFIG_MEDIA_CONTROLLER) 1474 media_entity_cleanup(&sd->entity); 1475#endif 1476 mutex_destroy(&ov2659->lock); 1477 1478 return 0; 1479} 1480 1481static const struct i2c_device_id ov2659_id[] = { 1482 { "ov2659", 0 }, 1483 { /* sentinel */ }, 1484}; 1485MODULE_DEVICE_TABLE(i2c, ov2659_id); 1486 1487#if IS_ENABLED(CONFIG_OF) 1488static const struct of_device_id ov2659_of_match[] = { 1489 { .compatible = "ovti,ov2659", }, 1490 { /* sentinel */ }, 1491}; 1492MODULE_DEVICE_TABLE(of, ov2659_of_match); 1493#endif 1494 1495static struct i2c_driver ov2659_i2c_driver = { 1496 .driver = { 1497 .name = DRIVER_NAME, 1498 .of_match_table = of_match_ptr(ov2659_of_match), 1499 }, 1500 .probe = ov2659_probe, 1501 .remove = ov2659_remove, 1502 .id_table = ov2659_id, 1503}; 1504 1505module_i2c_driver(ov2659_i2c_driver); 1506 1507MODULE_AUTHOR("Benoit Parrot <bparrot@ti.com>"); 1508MODULE_DESCRIPTION("OV2659 CMOS Image Sensor driver"); 1509MODULE_LICENSE("GPL v2"); 1510