1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Omnivision OV2659 CMOS Image Sensor driver 4 * 5 * Copyright (C) 2015 Texas Instruments, Inc. 6 * 7 * Benoit Parrot <bparrot@ti.com> 8 * Lad, Prabhakar <prabhakar.csengg@gmail.com> 9 */ 10 11 #include <linux/clk.h> 12 #include <linux/delay.h> 13 #include <linux/gpio/consumer.h> 14 #include <linux/i2c.h> 15 #include <linux/module.h> 16 #include <linux/of_graph.h> 17 #include <linux/pm_runtime.h> 18 19 #include <media/i2c/ov2659.h> 20 #include <media/v4l2-ctrls.h> 21 #include <media/v4l2-event.h> 22 #include <media/v4l2-fwnode.h> 23 #include <media/v4l2-image-sizes.h> 24 #include <media/v4l2-subdev.h> 25 26 #define DRIVER_NAME "ov2659" 27 28 /* 29 * OV2659 register definitions 30 */ 31 #define REG_SOFTWARE_STANDBY 0x0100 32 #define REG_SOFTWARE_RESET 0x0103 33 #define REG_IO_CTRL00 0x3000 34 #define REG_IO_CTRL01 0x3001 35 #define REG_IO_CTRL02 0x3002 36 #define REG_OUTPUT_VALUE00 0x3008 37 #define REG_OUTPUT_VALUE01 0x3009 38 #define REG_OUTPUT_VALUE02 0x300d 39 #define REG_OUTPUT_SELECT00 0x300e 40 #define REG_OUTPUT_SELECT01 0x300f 41 #define REG_OUTPUT_SELECT02 0x3010 42 #define REG_OUTPUT_DRIVE 0x3011 43 #define REG_INPUT_READOUT00 0x302d 44 #define REG_INPUT_READOUT01 0x302e 45 #define REG_INPUT_READOUT02 0x302f 46 47 #define REG_SC_PLL_CTRL0 0x3003 48 #define REG_SC_PLL_CTRL1 0x3004 49 #define REG_SC_PLL_CTRL2 0x3005 50 #define REG_SC_PLL_CTRL3 0x3006 51 #define REG_SC_CHIP_ID_H 0x300a 52 #define REG_SC_CHIP_ID_L 0x300b 53 #define REG_SC_PWC 0x3014 54 #define REG_SC_CLKRST0 0x301a 55 #define REG_SC_CLKRST1 0x301b 56 #define REG_SC_CLKRST2 0x301c 57 #define REG_SC_CLKRST3 0x301d 58 #define REG_SC_SUB_ID 0x302a 59 #define REG_SC_SCCB_ID 0x302b 60 61 #define REG_GROUP_ADDRESS_00 0x3200 62 #define REG_GROUP_ADDRESS_01 0x3201 63 #define REG_GROUP_ADDRESS_02 0x3202 64 #define REG_GROUP_ADDRESS_03 0x3203 65 #define REG_GROUP_ACCESS 0x3208 66 67 #define REG_AWB_R_GAIN_H 0x3400 68 #define REG_AWB_R_GAIN_L 0x3401 69 #define REG_AWB_G_GAIN_H 0x3402 70 #define REG_AWB_G_GAIN_L 0x3403 71 #define REG_AWB_B_GAIN_H 0x3404 72 #define REG_AWB_B_GAIN_L 0x3405 73 #define REG_AWB_MANUAL_CONTROL 0x3406 74 75 #define REG_TIMING_HS_H 0x3800 76 #define REG_TIMING_HS_L 0x3801 77 #define REG_TIMING_VS_H 0x3802 78 #define REG_TIMING_VS_L 0x3803 79 #define REG_TIMING_HW_H 0x3804 80 #define REG_TIMING_HW_L 0x3805 81 #define REG_TIMING_VH_H 0x3806 82 #define REG_TIMING_VH_L 0x3807 83 #define REG_TIMING_DVPHO_H 0x3808 84 #define REG_TIMING_DVPHO_L 0x3809 85 #define REG_TIMING_DVPVO_H 0x380a 86 #define REG_TIMING_DVPVO_L 0x380b 87 #define REG_TIMING_HTS_H 0x380c 88 #define REG_TIMING_HTS_L 0x380d 89 #define REG_TIMING_VTS_H 0x380e 90 #define REG_TIMING_VTS_L 0x380f 91 #define REG_TIMING_HOFFS_H 0x3810 92 #define REG_TIMING_HOFFS_L 0x3811 93 #define REG_TIMING_VOFFS_H 0x3812 94 #define REG_TIMING_VOFFS_L 0x3813 95 #define REG_TIMING_XINC 0x3814 96 #define REG_TIMING_YINC 0x3815 97 #define REG_TIMING_VERT_FORMAT 0x3820 98 #define REG_TIMING_HORIZ_FORMAT 0x3821 99 100 #define REG_FORMAT_CTRL00 0x4300 101 102 #define REG_VFIFO_READ_START_H 0x4608 103 #define REG_VFIFO_READ_START_L 0x4609 104 105 #define REG_DVP_CTRL02 0x4708 106 107 #define REG_ISP_CTRL00 0x5000 108 #define REG_ISP_CTRL01 0x5001 109 #define REG_ISP_CTRL02 0x5002 110 111 #define REG_LENC_RED_X0_H 0x500c 112 #define REG_LENC_RED_X0_L 0x500d 113 #define REG_LENC_RED_Y0_H 0x500e 114 #define REG_LENC_RED_Y0_L 0x500f 115 #define REG_LENC_RED_A1 0x5010 116 #define REG_LENC_RED_B1 0x5011 117 #define REG_LENC_RED_A2_B2 0x5012 118 #define REG_LENC_GREEN_X0_H 0x5013 119 #define REG_LENC_GREEN_X0_L 0x5014 120 #define REG_LENC_GREEN_Y0_H 0x5015 121 #define REG_LENC_GREEN_Y0_L 0x5016 122 #define REG_LENC_GREEN_A1 0x5017 123 #define REG_LENC_GREEN_B1 0x5018 124 #define REG_LENC_GREEN_A2_B2 0x5019 125 #define REG_LENC_BLUE_X0_H 0x501a 126 #define REG_LENC_BLUE_X0_L 0x501b 127 #define REG_LENC_BLUE_Y0_H 0x501c 128 #define REG_LENC_BLUE_Y0_L 0x501d 129 #define REG_LENC_BLUE_A1 0x501e 130 #define REG_LENC_BLUE_B1 0x501f 131 #define REG_LENC_BLUE_A2_B2 0x5020 132 133 #define REG_AWB_CTRL00 0x5035 134 #define REG_AWB_CTRL01 0x5036 135 #define REG_AWB_CTRL02 0x5037 136 #define REG_AWB_CTRL03 0x5038 137 #define REG_AWB_CTRL04 0x5039 138 #define REG_AWB_LOCAL_LIMIT 0x503a 139 #define REG_AWB_CTRL12 0x5049 140 #define REG_AWB_CTRL13 0x504a 141 #define REG_AWB_CTRL14 0x504b 142 143 #define REG_SHARPENMT_THRESH1 0x5064 144 #define REG_SHARPENMT_THRESH2 0x5065 145 #define REG_SHARPENMT_OFFSET1 0x5066 146 #define REG_SHARPENMT_OFFSET2 0x5067 147 #define REG_DENOISE_THRESH1 0x5068 148 #define REG_DENOISE_THRESH2 0x5069 149 #define REG_DENOISE_OFFSET1 0x506a 150 #define REG_DENOISE_OFFSET2 0x506b 151 #define REG_SHARPEN_THRESH1 0x506c 152 #define REG_SHARPEN_THRESH2 0x506d 153 #define REG_CIP_CTRL00 0x506e 154 #define REG_CIP_CTRL01 0x506f 155 156 #define REG_CMX_SIGN 0x5079 157 #define REG_CMX_MISC_CTRL 0x507a 158 159 #define REG_PRE_ISP_CTRL00 0x50a0 160 #define TEST_PATTERN_ENABLE BIT(7) 161 #define VERTICAL_COLOR_BAR_MASK 0x53 162 163 #define REG_NULL 0x0000 /* Array end token */ 164 165 #define OV265X_ID(_msb, _lsb) ((_msb) << 8 | (_lsb)) 166 #define OV2659_ID 0x2656 167 168 struct sensor_register { 169 u16 addr; 170 u8 value; 171 }; 172 173 struct ov2659_framesize { 174 u16 width; 175 u16 height; 176 u16 max_exp_lines; 177 const struct sensor_register *regs; 178 }; 179 180 struct ov2659_pll_ctrl { 181 u8 ctrl1; 182 u8 ctrl2; 183 u8 ctrl3; 184 }; 185 186 struct ov2659_pixfmt { 187 u32 code; 188 /* Output format Register Value (REG_FORMAT_CTRL00) */ 189 struct sensor_register *format_ctrl_regs; 190 }; 191 192 struct pll_ctrl_reg { 193 unsigned int div; 194 unsigned char reg; 195 }; 196 197 struct ov2659 { 198 struct v4l2_subdev sd; 199 struct media_pad pad; 200 struct v4l2_mbus_framefmt format; 201 unsigned int xvclk_frequency; 202 const struct ov2659_platform_data *pdata; 203 struct mutex lock; 204 struct i2c_client *client; 205 struct v4l2_ctrl_handler ctrls; 206 struct v4l2_ctrl *link_frequency; 207 struct clk *clk; 208 const struct ov2659_framesize *frame_size; 209 struct sensor_register *format_ctrl_regs; 210 struct ov2659_pll_ctrl pll; 211 int streaming; 212 /* used to control the sensor PWDN pin */ 213 struct gpio_desc *pwdn_gpio; 214 /* used to control the sensor RESETB pin */ 215 struct gpio_desc *resetb_gpio; 216 }; 217 218 static const struct sensor_register ov2659_init_regs[] = { 219 { REG_IO_CTRL00, 0x03 }, 220 { REG_IO_CTRL01, 0xff }, 221 { REG_IO_CTRL02, 0xe0 }, 222 { 0x3633, 0x3d }, 223 { 0x3620, 0x02 }, 224 { 0x3631, 0x11 }, 225 { 0x3612, 0x04 }, 226 { 0x3630, 0x20 }, 227 { 0x4702, 0x02 }, 228 { 0x370c, 0x34 }, 229 { REG_TIMING_HS_H, 0x00 }, 230 { REG_TIMING_HS_L, 0x00 }, 231 { REG_TIMING_VS_H, 0x00 }, 232 { REG_TIMING_VS_L, 0x00 }, 233 { REG_TIMING_HW_H, 0x06 }, 234 { REG_TIMING_HW_L, 0x5f }, 235 { REG_TIMING_VH_H, 0x04 }, 236 { REG_TIMING_VH_L, 0xb7 }, 237 { REG_TIMING_DVPHO_H, 0x03 }, 238 { REG_TIMING_DVPHO_L, 0x20 }, 239 { REG_TIMING_DVPVO_H, 0x02 }, 240 { REG_TIMING_DVPVO_L, 0x58 }, 241 { REG_TIMING_HTS_H, 0x05 }, 242 { REG_TIMING_HTS_L, 0x14 }, 243 { REG_TIMING_VTS_H, 0x02 }, 244 { REG_TIMING_VTS_L, 0x68 }, 245 { REG_TIMING_HOFFS_L, 0x08 }, 246 { REG_TIMING_VOFFS_L, 0x02 }, 247 { REG_TIMING_XINC, 0x31 }, 248 { REG_TIMING_YINC, 0x31 }, 249 { 0x3a02, 0x02 }, 250 { 0x3a03, 0x68 }, 251 { 0x3a08, 0x00 }, 252 { 0x3a09, 0x5c }, 253 { 0x3a0a, 0x00 }, 254 { 0x3a0b, 0x4d }, 255 { 0x3a0d, 0x08 }, 256 { 0x3a0e, 0x06 }, 257 { 0x3a14, 0x02 }, 258 { 0x3a15, 0x28 }, 259 { REG_DVP_CTRL02, 0x01 }, 260 { 0x3623, 0x00 }, 261 { 0x3634, 0x76 }, 262 { 0x3701, 0x44 }, 263 { 0x3702, 0x18 }, 264 { 0x3703, 0x24 }, 265 { 0x3704, 0x24 }, 266 { 0x3705, 0x0c }, 267 { REG_TIMING_VERT_FORMAT, 0x81 }, 268 { REG_TIMING_HORIZ_FORMAT, 0x01 }, 269 { 0x370a, 0x52 }, 270 { REG_VFIFO_READ_START_H, 0x00 }, 271 { REG_VFIFO_READ_START_L, 0x80 }, 272 { REG_FORMAT_CTRL00, 0x30 }, 273 { 0x5086, 0x02 }, 274 { REG_ISP_CTRL00, 0xfb }, 275 { REG_ISP_CTRL01, 0x1f }, 276 { REG_ISP_CTRL02, 0x00 }, 277 { 0x5025, 0x0e }, 278 { 0x5026, 0x18 }, 279 { 0x5027, 0x34 }, 280 { 0x5028, 0x4c }, 281 { 0x5029, 0x62 }, 282 { 0x502a, 0x74 }, 283 { 0x502b, 0x85 }, 284 { 0x502c, 0x92 }, 285 { 0x502d, 0x9e }, 286 { 0x502e, 0xb2 }, 287 { 0x502f, 0xc0 }, 288 { 0x5030, 0xcc }, 289 { 0x5031, 0xe0 }, 290 { 0x5032, 0xee }, 291 { 0x5033, 0xf6 }, 292 { 0x5034, 0x11 }, 293 { 0x5070, 0x1c }, 294 { 0x5071, 0x5b }, 295 { 0x5072, 0x05 }, 296 { 0x5073, 0x20 }, 297 { 0x5074, 0x94 }, 298 { 0x5075, 0xb4 }, 299 { 0x5076, 0xb4 }, 300 { 0x5077, 0xaf }, 301 { 0x5078, 0x05 }, 302 { REG_CMX_SIGN, 0x98 }, 303 { REG_CMX_MISC_CTRL, 0x21 }, 304 { REG_AWB_CTRL00, 0x6a }, 305 { REG_AWB_CTRL01, 0x11 }, 306 { REG_AWB_CTRL02, 0x92 }, 307 { REG_AWB_CTRL03, 0x21 }, 308 { REG_AWB_CTRL04, 0xe1 }, 309 { REG_AWB_LOCAL_LIMIT, 0x01 }, 310 { 0x503c, 0x05 }, 311 { 0x503d, 0x08 }, 312 { 0x503e, 0x08 }, 313 { 0x503f, 0x64 }, 314 { 0x5040, 0x58 }, 315 { 0x5041, 0x2a }, 316 { 0x5042, 0xc5 }, 317 { 0x5043, 0x2e }, 318 { 0x5044, 0x3a }, 319 { 0x5045, 0x3c }, 320 { 0x5046, 0x44 }, 321 { 0x5047, 0xf8 }, 322 { 0x5048, 0x08 }, 323 { REG_AWB_CTRL12, 0x70 }, 324 { REG_AWB_CTRL13, 0xf0 }, 325 { REG_AWB_CTRL14, 0xf0 }, 326 { REG_LENC_RED_X0_H, 0x03 }, 327 { REG_LENC_RED_X0_L, 0x20 }, 328 { REG_LENC_RED_Y0_H, 0x02 }, 329 { REG_LENC_RED_Y0_L, 0x5c }, 330 { REG_LENC_RED_A1, 0x48 }, 331 { REG_LENC_RED_B1, 0x00 }, 332 { REG_LENC_RED_A2_B2, 0x66 }, 333 { REG_LENC_GREEN_X0_H, 0x03 }, 334 { REG_LENC_GREEN_X0_L, 0x30 }, 335 { REG_LENC_GREEN_Y0_H, 0x02 }, 336 { REG_LENC_GREEN_Y0_L, 0x7c }, 337 { REG_LENC_GREEN_A1, 0x40 }, 338 { REG_LENC_GREEN_B1, 0x00 }, 339 { REG_LENC_GREEN_A2_B2, 0x66 }, 340 { REG_LENC_BLUE_X0_H, 0x03 }, 341 { REG_LENC_BLUE_X0_L, 0x10 }, 342 { REG_LENC_BLUE_Y0_H, 0x02 }, 343 { REG_LENC_BLUE_Y0_L, 0x7c }, 344 { REG_LENC_BLUE_A1, 0x3a }, 345 { REG_LENC_BLUE_B1, 0x00 }, 346 { REG_LENC_BLUE_A2_B2, 0x66 }, 347 { REG_CIP_CTRL00, 0x44 }, 348 { REG_SHARPENMT_THRESH1, 0x08 }, 349 { REG_SHARPENMT_THRESH2, 0x10 }, 350 { REG_SHARPENMT_OFFSET1, 0x12 }, 351 { REG_SHARPENMT_OFFSET2, 0x02 }, 352 { REG_SHARPEN_THRESH1, 0x08 }, 353 { REG_SHARPEN_THRESH2, 0x10 }, 354 { REG_CIP_CTRL01, 0xa6 }, 355 { REG_DENOISE_THRESH1, 0x08 }, 356 { REG_DENOISE_THRESH2, 0x10 }, 357 { REG_DENOISE_OFFSET1, 0x04 }, 358 { REG_DENOISE_OFFSET2, 0x12 }, 359 { 0x507e, 0x40 }, 360 { 0x507f, 0x20 }, 361 { 0x507b, 0x02 }, 362 { REG_CMX_MISC_CTRL, 0x01 }, 363 { 0x5084, 0x0c }, 364 { 0x5085, 0x3e }, 365 { 0x5005, 0x80 }, 366 { 0x3a0f, 0x30 }, 367 { 0x3a10, 0x28 }, 368 { 0x3a1b, 0x32 }, 369 { 0x3a1e, 0x26 }, 370 { 0x3a11, 0x60 }, 371 { 0x3a1f, 0x14 }, 372 { 0x5060, 0x69 }, 373 { 0x5061, 0x7d }, 374 { 0x5062, 0x7d }, 375 { 0x5063, 0x69 }, 376 { REG_NULL, 0x00 }, 377 }; 378 379 /* 1280X720 720p */ 380 static struct sensor_register ov2659_720p[] = { 381 { REG_TIMING_HS_H, 0x00 }, 382 { REG_TIMING_HS_L, 0xa0 }, 383 { REG_TIMING_VS_H, 0x00 }, 384 { REG_TIMING_VS_L, 0xf0 }, 385 { REG_TIMING_HW_H, 0x05 }, 386 { REG_TIMING_HW_L, 0xbf }, 387 { REG_TIMING_VH_H, 0x03 }, 388 { REG_TIMING_VH_L, 0xcb }, 389 { REG_TIMING_DVPHO_H, 0x05 }, 390 { REG_TIMING_DVPHO_L, 0x00 }, 391 { REG_TIMING_DVPVO_H, 0x02 }, 392 { REG_TIMING_DVPVO_L, 0xd0 }, 393 { REG_TIMING_HTS_H, 0x06 }, 394 { REG_TIMING_HTS_L, 0x4c }, 395 { REG_TIMING_VTS_H, 0x02 }, 396 { REG_TIMING_VTS_L, 0xe8 }, 397 { REG_TIMING_HOFFS_L, 0x10 }, 398 { REG_TIMING_VOFFS_L, 0x06 }, 399 { REG_TIMING_XINC, 0x11 }, 400 { REG_TIMING_YINC, 0x11 }, 401 { REG_TIMING_VERT_FORMAT, 0x80 }, 402 { REG_TIMING_HORIZ_FORMAT, 0x00 }, 403 { 0x370a, 0x12 }, 404 { 0x3a03, 0xe8 }, 405 { 0x3a09, 0x6f }, 406 { 0x3a0b, 0x5d }, 407 { 0x3a15, 0x9a }, 408 { REG_VFIFO_READ_START_H, 0x00 }, 409 { REG_VFIFO_READ_START_L, 0x80 }, 410 { REG_ISP_CTRL02, 0x00 }, 411 { REG_NULL, 0x00 }, 412 }; 413 414 /* 1600X1200 UXGA */ 415 static struct sensor_register ov2659_uxga[] = { 416 { REG_TIMING_HS_H, 0x00 }, 417 { REG_TIMING_HS_L, 0x00 }, 418 { REG_TIMING_VS_H, 0x00 }, 419 { REG_TIMING_VS_L, 0x00 }, 420 { REG_TIMING_HW_H, 0x06 }, 421 { REG_TIMING_HW_L, 0x5f }, 422 { REG_TIMING_VH_H, 0x04 }, 423 { REG_TIMING_VH_L, 0xbb }, 424 { REG_TIMING_DVPHO_H, 0x06 }, 425 { REG_TIMING_DVPHO_L, 0x40 }, 426 { REG_TIMING_DVPVO_H, 0x04 }, 427 { REG_TIMING_DVPVO_L, 0xb0 }, 428 { REG_TIMING_HTS_H, 0x07 }, 429 { REG_TIMING_HTS_L, 0x9f }, 430 { REG_TIMING_VTS_H, 0x04 }, 431 { REG_TIMING_VTS_L, 0xd0 }, 432 { REG_TIMING_HOFFS_L, 0x10 }, 433 { REG_TIMING_VOFFS_L, 0x06 }, 434 { REG_TIMING_XINC, 0x11 }, 435 { REG_TIMING_YINC, 0x11 }, 436 { 0x3a02, 0x04 }, 437 { 0x3a03, 0xd0 }, 438 { 0x3a08, 0x00 }, 439 { 0x3a09, 0xb8 }, 440 { 0x3a0a, 0x00 }, 441 { 0x3a0b, 0x9a }, 442 { 0x3a0d, 0x08 }, 443 { 0x3a0e, 0x06 }, 444 { 0x3a14, 0x04 }, 445 { 0x3a15, 0x50 }, 446 { 0x3623, 0x00 }, 447 { 0x3634, 0x44 }, 448 { 0x3701, 0x44 }, 449 { 0x3702, 0x30 }, 450 { 0x3703, 0x48 }, 451 { 0x3704, 0x48 }, 452 { 0x3705, 0x18 }, 453 { REG_TIMING_VERT_FORMAT, 0x80 }, 454 { REG_TIMING_HORIZ_FORMAT, 0x00 }, 455 { 0x370a, 0x12 }, 456 { REG_VFIFO_READ_START_H, 0x00 }, 457 { REG_VFIFO_READ_START_L, 0x80 }, 458 { REG_ISP_CTRL02, 0x00 }, 459 { REG_NULL, 0x00 }, 460 }; 461 462 /* 1280X1024 SXGA */ 463 static struct sensor_register ov2659_sxga[] = { 464 { REG_TIMING_HS_H, 0x00 }, 465 { REG_TIMING_HS_L, 0x00 }, 466 { REG_TIMING_VS_H, 0x00 }, 467 { REG_TIMING_VS_L, 0x00 }, 468 { REG_TIMING_HW_H, 0x06 }, 469 { REG_TIMING_HW_L, 0x5f }, 470 { REG_TIMING_VH_H, 0x04 }, 471 { REG_TIMING_VH_L, 0xb7 }, 472 { REG_TIMING_DVPHO_H, 0x05 }, 473 { REG_TIMING_DVPHO_L, 0x00 }, 474 { REG_TIMING_DVPVO_H, 0x04 }, 475 { REG_TIMING_DVPVO_L, 0x00 }, 476 { REG_TIMING_HTS_H, 0x07 }, 477 { REG_TIMING_HTS_L, 0x9c }, 478 { REG_TIMING_VTS_H, 0x04 }, 479 { REG_TIMING_VTS_L, 0xd0 }, 480 { REG_TIMING_HOFFS_L, 0x10 }, 481 { REG_TIMING_VOFFS_L, 0x06 }, 482 { REG_TIMING_XINC, 0x11 }, 483 { REG_TIMING_YINC, 0x11 }, 484 { 0x3a02, 0x02 }, 485 { 0x3a03, 0x68 }, 486 { 0x3a08, 0x00 }, 487 { 0x3a09, 0x5c }, 488 { 0x3a0a, 0x00 }, 489 { 0x3a0b, 0x4d }, 490 { 0x3a0d, 0x08 }, 491 { 0x3a0e, 0x06 }, 492 { 0x3a14, 0x02 }, 493 { 0x3a15, 0x28 }, 494 { 0x3623, 0x00 }, 495 { 0x3634, 0x76 }, 496 { 0x3701, 0x44 }, 497 { 0x3702, 0x18 }, 498 { 0x3703, 0x24 }, 499 { 0x3704, 0x24 }, 500 { 0x3705, 0x0c }, 501 { REG_TIMING_VERT_FORMAT, 0x80 }, 502 { REG_TIMING_HORIZ_FORMAT, 0x00 }, 503 { 0x370a, 0x52 }, 504 { REG_VFIFO_READ_START_H, 0x00 }, 505 { REG_VFIFO_READ_START_L, 0x80 }, 506 { REG_ISP_CTRL02, 0x00 }, 507 { REG_NULL, 0x00 }, 508 }; 509 510 /* 1024X768 SXGA */ 511 static struct sensor_register ov2659_xga[] = { 512 { REG_TIMING_HS_H, 0x00 }, 513 { REG_TIMING_HS_L, 0x00 }, 514 { REG_TIMING_VS_H, 0x00 }, 515 { REG_TIMING_VS_L, 0x00 }, 516 { REG_TIMING_HW_H, 0x06 }, 517 { REG_TIMING_HW_L, 0x5f }, 518 { REG_TIMING_VH_H, 0x04 }, 519 { REG_TIMING_VH_L, 0xb7 }, 520 { REG_TIMING_DVPHO_H, 0x04 }, 521 { REG_TIMING_DVPHO_L, 0x00 }, 522 { REG_TIMING_DVPVO_H, 0x03 }, 523 { REG_TIMING_DVPVO_L, 0x00 }, 524 { REG_TIMING_HTS_H, 0x07 }, 525 { REG_TIMING_HTS_L, 0x9c }, 526 { REG_TIMING_VTS_H, 0x04 }, 527 { REG_TIMING_VTS_L, 0xd0 }, 528 { REG_TIMING_HOFFS_L, 0x10 }, 529 { REG_TIMING_VOFFS_L, 0x06 }, 530 { REG_TIMING_XINC, 0x11 }, 531 { REG_TIMING_YINC, 0x11 }, 532 { 0x3a02, 0x02 }, 533 { 0x3a03, 0x68 }, 534 { 0x3a08, 0x00 }, 535 { 0x3a09, 0x5c }, 536 { 0x3a0a, 0x00 }, 537 { 0x3a0b, 0x4d }, 538 { 0x3a0d, 0x08 }, 539 { 0x3a0e, 0x06 }, 540 { 0x3a14, 0x02 }, 541 { 0x3a15, 0x28 }, 542 { 0x3623, 0x00 }, 543 { 0x3634, 0x76 }, 544 { 0x3701, 0x44 }, 545 { 0x3702, 0x18 }, 546 { 0x3703, 0x24 }, 547 { 0x3704, 0x24 }, 548 { 0x3705, 0x0c }, 549 { REG_TIMING_VERT_FORMAT, 0x80 }, 550 { REG_TIMING_HORIZ_FORMAT, 0x00 }, 551 { 0x370a, 0x52 }, 552 { REG_VFIFO_READ_START_H, 0x00 }, 553 { REG_VFIFO_READ_START_L, 0x80 }, 554 { REG_ISP_CTRL02, 0x00 }, 555 { REG_NULL, 0x00 }, 556 }; 557 558 /* 800X600 SVGA */ 559 static struct sensor_register ov2659_svga[] = { 560 { REG_TIMING_HS_H, 0x00 }, 561 { REG_TIMING_HS_L, 0x00 }, 562 { REG_TIMING_VS_H, 0x00 }, 563 { REG_TIMING_VS_L, 0x00 }, 564 { REG_TIMING_HW_H, 0x06 }, 565 { REG_TIMING_HW_L, 0x5f }, 566 { REG_TIMING_VH_H, 0x04 }, 567 { REG_TIMING_VH_L, 0xb7 }, 568 { REG_TIMING_DVPHO_H, 0x03 }, 569 { REG_TIMING_DVPHO_L, 0x20 }, 570 { REG_TIMING_DVPVO_H, 0x02 }, 571 { REG_TIMING_DVPVO_L, 0x58 }, 572 { REG_TIMING_HTS_H, 0x05 }, 573 { REG_TIMING_HTS_L, 0x14 }, 574 { REG_TIMING_VTS_H, 0x02 }, 575 { REG_TIMING_VTS_L, 0x68 }, 576 { REG_TIMING_HOFFS_L, 0x08 }, 577 { REG_TIMING_VOFFS_L, 0x02 }, 578 { REG_TIMING_XINC, 0x31 }, 579 { REG_TIMING_YINC, 0x31 }, 580 { 0x3a02, 0x02 }, 581 { 0x3a03, 0x68 }, 582 { 0x3a08, 0x00 }, 583 { 0x3a09, 0x5c }, 584 { 0x3a0a, 0x00 }, 585 { 0x3a0b, 0x4d }, 586 { 0x3a0d, 0x08 }, 587 { 0x3a0e, 0x06 }, 588 { 0x3a14, 0x02 }, 589 { 0x3a15, 0x28 }, 590 { 0x3623, 0x00 }, 591 { 0x3634, 0x76 }, 592 { 0x3701, 0x44 }, 593 { 0x3702, 0x18 }, 594 { 0x3703, 0x24 }, 595 { 0x3704, 0x24 }, 596 { 0x3705, 0x0c }, 597 { REG_TIMING_VERT_FORMAT, 0x81 }, 598 { REG_TIMING_HORIZ_FORMAT, 0x01 }, 599 { 0x370a, 0x52 }, 600 { REG_VFIFO_READ_START_H, 0x00 }, 601 { REG_VFIFO_READ_START_L, 0x80 }, 602 { REG_ISP_CTRL02, 0x00 }, 603 { REG_NULL, 0x00 }, 604 }; 605 606 /* 640X480 VGA */ 607 static struct sensor_register ov2659_vga[] = { 608 { REG_TIMING_HS_H, 0x00 }, 609 { REG_TIMING_HS_L, 0x00 }, 610 { REG_TIMING_VS_H, 0x00 }, 611 { REG_TIMING_VS_L, 0x00 }, 612 { REG_TIMING_HW_H, 0x06 }, 613 { REG_TIMING_HW_L, 0x5f }, 614 { REG_TIMING_VH_H, 0x04 }, 615 { REG_TIMING_VH_L, 0xb7 }, 616 { REG_TIMING_DVPHO_H, 0x02 }, 617 { REG_TIMING_DVPHO_L, 0x80 }, 618 { REG_TIMING_DVPVO_H, 0x01 }, 619 { REG_TIMING_DVPVO_L, 0xe0 }, 620 { REG_TIMING_HTS_H, 0x05 }, 621 { REG_TIMING_HTS_L, 0x14 }, 622 { REG_TIMING_VTS_H, 0x02 }, 623 { REG_TIMING_VTS_L, 0x68 }, 624 { REG_TIMING_HOFFS_L, 0x08 }, 625 { REG_TIMING_VOFFS_L, 0x02 }, 626 { REG_TIMING_XINC, 0x31 }, 627 { REG_TIMING_YINC, 0x31 }, 628 { 0x3a02, 0x02 }, 629 { 0x3a03, 0x68 }, 630 { 0x3a08, 0x00 }, 631 { 0x3a09, 0x5c }, 632 { 0x3a0a, 0x00 }, 633 { 0x3a0b, 0x4d }, 634 { 0x3a0d, 0x08 }, 635 { 0x3a0e, 0x06 }, 636 { 0x3a14, 0x02 }, 637 { 0x3a15, 0x28 }, 638 { 0x3623, 0x00 }, 639 { 0x3634, 0x76 }, 640 { 0x3701, 0x44 }, 641 { 0x3702, 0x18 }, 642 { 0x3703, 0x24 }, 643 { 0x3704, 0x24 }, 644 { 0x3705, 0x0c }, 645 { REG_TIMING_VERT_FORMAT, 0x81 }, 646 { REG_TIMING_HORIZ_FORMAT, 0x01 }, 647 { 0x370a, 0x52 }, 648 { REG_VFIFO_READ_START_H, 0x00 }, 649 { REG_VFIFO_READ_START_L, 0xa0 }, 650 { REG_ISP_CTRL02, 0x10 }, 651 { REG_NULL, 0x00 }, 652 }; 653 654 /* 320X240 QVGA */ 655 static struct sensor_register ov2659_qvga[] = { 656 { REG_TIMING_HS_H, 0x00 }, 657 { REG_TIMING_HS_L, 0x00 }, 658 { REG_TIMING_VS_H, 0x00 }, 659 { REG_TIMING_VS_L, 0x00 }, 660 { REG_TIMING_HW_H, 0x06 }, 661 { REG_TIMING_HW_L, 0x5f }, 662 { REG_TIMING_VH_H, 0x04 }, 663 { REG_TIMING_VH_L, 0xb7 }, 664 { REG_TIMING_DVPHO_H, 0x01 }, 665 { REG_TIMING_DVPHO_L, 0x40 }, 666 { REG_TIMING_DVPVO_H, 0x00 }, 667 { REG_TIMING_DVPVO_L, 0xf0 }, 668 { REG_TIMING_HTS_H, 0x05 }, 669 { REG_TIMING_HTS_L, 0x14 }, 670 { REG_TIMING_VTS_H, 0x02 }, 671 { REG_TIMING_VTS_L, 0x68 }, 672 { REG_TIMING_HOFFS_L, 0x08 }, 673 { REG_TIMING_VOFFS_L, 0x02 }, 674 { REG_TIMING_XINC, 0x31 }, 675 { REG_TIMING_YINC, 0x31 }, 676 { 0x3a02, 0x02 }, 677 { 0x3a03, 0x68 }, 678 { 0x3a08, 0x00 }, 679 { 0x3a09, 0x5c }, 680 { 0x3a0a, 0x00 }, 681 { 0x3a0b, 0x4d }, 682 { 0x3a0d, 0x08 }, 683 { 0x3a0e, 0x06 }, 684 { 0x3a14, 0x02 }, 685 { 0x3a15, 0x28 }, 686 { 0x3623, 0x00 }, 687 { 0x3634, 0x76 }, 688 { 0x3701, 0x44 }, 689 { 0x3702, 0x18 }, 690 { 0x3703, 0x24 }, 691 { 0x3704, 0x24 }, 692 { 0x3705, 0x0c }, 693 { REG_TIMING_VERT_FORMAT, 0x81 }, 694 { REG_TIMING_HORIZ_FORMAT, 0x01 }, 695 { 0x370a, 0x52 }, 696 { REG_VFIFO_READ_START_H, 0x00 }, 697 { REG_VFIFO_READ_START_L, 0xa0 }, 698 { REG_ISP_CTRL02, 0x10 }, 699 { REG_NULL, 0x00 }, 700 }; 701 702 static const struct pll_ctrl_reg ctrl3[] = { 703 { 1, 0x00 }, 704 { 2, 0x02 }, 705 { 3, 0x03 }, 706 { 4, 0x06 }, 707 { 6, 0x0d }, 708 { 8, 0x0e }, 709 { 12, 0x0f }, 710 { 16, 0x12 }, 711 { 24, 0x13 }, 712 { 32, 0x16 }, 713 { 48, 0x1b }, 714 { 64, 0x1e }, 715 { 96, 0x1f }, 716 { 0, 0x00 }, 717 }; 718 719 static const struct pll_ctrl_reg ctrl1[] = { 720 { 2, 0x10 }, 721 { 4, 0x20 }, 722 { 6, 0x30 }, 723 { 8, 0x40 }, 724 { 10, 0x50 }, 725 { 12, 0x60 }, 726 { 14, 0x70 }, 727 { 16, 0x80 }, 728 { 18, 0x90 }, 729 { 20, 0xa0 }, 730 { 22, 0xb0 }, 731 { 24, 0xc0 }, 732 { 26, 0xd0 }, 733 { 28, 0xe0 }, 734 { 30, 0xf0 }, 735 { 0, 0x00 }, 736 }; 737 738 static const struct ov2659_framesize ov2659_framesizes[] = { 739 { /* QVGA */ 740 .width = 320, 741 .height = 240, 742 .regs = ov2659_qvga, 743 .max_exp_lines = 248, 744 }, { /* VGA */ 745 .width = 640, 746 .height = 480, 747 .regs = ov2659_vga, 748 .max_exp_lines = 498, 749 }, { /* SVGA */ 750 .width = 800, 751 .height = 600, 752 .regs = ov2659_svga, 753 .max_exp_lines = 498, 754 }, { /* XGA */ 755 .width = 1024, 756 .height = 768, 757 .regs = ov2659_xga, 758 .max_exp_lines = 498, 759 }, { /* 720P */ 760 .width = 1280, 761 .height = 720, 762 .regs = ov2659_720p, 763 .max_exp_lines = 498, 764 }, { /* SXGA */ 765 .width = 1280, 766 .height = 1024, 767 .regs = ov2659_sxga, 768 .max_exp_lines = 1048, 769 }, { /* UXGA */ 770 .width = 1600, 771 .height = 1200, 772 .regs = ov2659_uxga, 773 .max_exp_lines = 498, 774 }, 775 }; 776 777 /* YUV422 YUYV*/ 778 static struct sensor_register ov2659_format_yuyv[] = { 779 { REG_FORMAT_CTRL00, 0x30 }, 780 { REG_NULL, 0x0 }, 781 }; 782 783 /* YUV422 UYVY */ 784 static struct sensor_register ov2659_format_uyvy[] = { 785 { REG_FORMAT_CTRL00, 0x32 }, 786 { REG_NULL, 0x0 }, 787 }; 788 789 /* Raw Bayer BGGR */ 790 static struct sensor_register ov2659_format_bggr[] = { 791 { REG_FORMAT_CTRL00, 0x00 }, 792 { REG_NULL, 0x0 }, 793 }; 794 795 /* RGB565 */ 796 static struct sensor_register ov2659_format_rgb565[] = { 797 { REG_FORMAT_CTRL00, 0x60 }, 798 { REG_NULL, 0x0 }, 799 }; 800 801 static const struct ov2659_pixfmt ov2659_formats[] = { 802 { 803 .code = MEDIA_BUS_FMT_YUYV8_2X8, 804 .format_ctrl_regs = ov2659_format_yuyv, 805 }, { 806 .code = MEDIA_BUS_FMT_UYVY8_2X8, 807 .format_ctrl_regs = ov2659_format_uyvy, 808 }, { 809 .code = MEDIA_BUS_FMT_RGB565_2X8_BE, 810 .format_ctrl_regs = ov2659_format_rgb565, 811 }, { 812 .code = MEDIA_BUS_FMT_SBGGR8_1X8, 813 .format_ctrl_regs = ov2659_format_bggr, 814 }, 815 }; 816 817 static inline struct ov2659 *to_ov2659(struct v4l2_subdev *sd) 818 { 819 return container_of(sd, struct ov2659, sd); 820 } 821 822 /* sensor register write */ 823 static int ov2659_write(struct i2c_client *client, u16 reg, u8 val) 824 { 825 struct i2c_msg msg; 826 u8 buf[3]; 827 int ret; 828 829 buf[0] = reg >> 8; 830 buf[1] = reg & 0xFF; 831 buf[2] = val; 832 833 msg.addr = client->addr; 834 msg.flags = client->flags; 835 msg.buf = buf; 836 msg.len = sizeof(buf); 837 838 ret = i2c_transfer(client->adapter, &msg, 1); 839 if (ret >= 0) 840 return 0; 841 842 dev_dbg(&client->dev, 843 "ov2659 write reg(0x%x val:0x%x) failed !\n", reg, val); 844 845 return ret; 846 } 847 848 /* sensor register read */ 849 static int ov2659_read(struct i2c_client *client, u16 reg, u8 *val) 850 { 851 struct i2c_msg msg[2]; 852 u8 buf[2]; 853 int ret; 854 855 buf[0] = reg >> 8; 856 buf[1] = reg & 0xFF; 857 858 msg[0].addr = client->addr; 859 msg[0].flags = client->flags; 860 msg[0].buf = buf; 861 msg[0].len = sizeof(buf); 862 863 msg[1].addr = client->addr; 864 msg[1].flags = client->flags | I2C_M_RD; 865 msg[1].buf = buf; 866 msg[1].len = 1; 867 868 ret = i2c_transfer(client->adapter, msg, 2); 869 if (ret >= 0) { 870 *val = buf[0]; 871 return 0; 872 } 873 874 dev_dbg(&client->dev, 875 "ov2659 read reg(0x%x val:0x%x) failed !\n", reg, *val); 876 877 return ret; 878 } 879 880 static int ov2659_write_array(struct i2c_client *client, 881 const struct sensor_register *regs) 882 { 883 int i, ret = 0; 884 885 for (i = 0; ret == 0 && regs[i].addr; i++) 886 ret = ov2659_write(client, regs[i].addr, regs[i].value); 887 888 return ret; 889 } 890 891 static void ov2659_pll_calc_params(struct ov2659 *ov2659) 892 { 893 const struct ov2659_platform_data *pdata = ov2659->pdata; 894 u8 ctrl1_reg = 0, ctrl2_reg = 0, ctrl3_reg = 0; 895 struct i2c_client *client = ov2659->client; 896 unsigned int desired = pdata->link_frequency; 897 u32 prediv, postdiv, mult; 898 u32 bestdelta = -1; 899 u32 delta, actual; 900 int i, j; 901 902 for (i = 0; ctrl1[i].div != 0; i++) { 903 postdiv = ctrl1[i].div; 904 for (j = 0; ctrl3[j].div != 0; j++) { 905 prediv = ctrl3[j].div; 906 for (mult = 1; mult <= 63; mult++) { 907 actual = ov2659->xvclk_frequency; 908 actual *= mult; 909 actual /= prediv; 910 actual /= postdiv; 911 delta = actual - desired; 912 delta = abs(delta); 913 914 if ((delta < bestdelta) || (bestdelta == -1)) { 915 bestdelta = delta; 916 ctrl1_reg = ctrl1[i].reg; 917 ctrl2_reg = mult; 918 ctrl3_reg = ctrl3[j].reg; 919 } 920 } 921 } 922 } 923 924 ov2659->pll.ctrl1 = ctrl1_reg; 925 ov2659->pll.ctrl2 = ctrl2_reg; 926 ov2659->pll.ctrl3 = ctrl3_reg; 927 928 dev_dbg(&client->dev, 929 "Actual reg config: ctrl1_reg: %02x ctrl2_reg: %02x ctrl3_reg: %02x\n", 930 ctrl1_reg, ctrl2_reg, ctrl3_reg); 931 } 932 933 static int ov2659_set_pixel_clock(struct ov2659 *ov2659) 934 { 935 struct i2c_client *client = ov2659->client; 936 struct sensor_register pll_regs[] = { 937 {REG_SC_PLL_CTRL1, ov2659->pll.ctrl1}, 938 {REG_SC_PLL_CTRL2, ov2659->pll.ctrl2}, 939 {REG_SC_PLL_CTRL3, ov2659->pll.ctrl3}, 940 {REG_NULL, 0x00}, 941 }; 942 943 dev_dbg(&client->dev, "%s\n", __func__); 944 945 return ov2659_write_array(client, pll_regs); 946 }; 947 948 static void ov2659_get_default_format(struct v4l2_mbus_framefmt *format) 949 { 950 format->width = ov2659_framesizes[2].width; 951 format->height = ov2659_framesizes[2].height; 952 format->colorspace = V4L2_COLORSPACE_SRGB; 953 format->code = ov2659_formats[0].code; 954 format->field = V4L2_FIELD_NONE; 955 } 956 957 static void ov2659_set_streaming(struct ov2659 *ov2659, int on) 958 { 959 struct i2c_client *client = ov2659->client; 960 int ret; 961 962 on = !!on; 963 964 dev_dbg(&client->dev, "%s: on: %d\n", __func__, on); 965 966 ret = ov2659_write(client, REG_SOFTWARE_STANDBY, on); 967 if (ret) 968 dev_err(&client->dev, "ov2659 soft standby failed\n"); 969 } 970 971 static int ov2659_init(struct v4l2_subdev *sd, u32 val) 972 { 973 struct i2c_client *client = v4l2_get_subdevdata(sd); 974 975 return ov2659_write_array(client, ov2659_init_regs); 976 } 977 978 /* 979 * V4L2 subdev video and pad level operations 980 */ 981 982 static int ov2659_enum_mbus_code(struct v4l2_subdev *sd, 983 struct v4l2_subdev_state *sd_state, 984 struct v4l2_subdev_mbus_code_enum *code) 985 { 986 struct i2c_client *client = v4l2_get_subdevdata(sd); 987 988 dev_dbg(&client->dev, "%s:\n", __func__); 989 990 if (code->index >= ARRAY_SIZE(ov2659_formats)) 991 return -EINVAL; 992 993 code->code = ov2659_formats[code->index].code; 994 995 return 0; 996 } 997 998 static int ov2659_enum_frame_sizes(struct v4l2_subdev *sd, 999 struct v4l2_subdev_state *sd_state, 1000 struct v4l2_subdev_frame_size_enum *fse) 1001 { 1002 struct i2c_client *client = v4l2_get_subdevdata(sd); 1003 int i = ARRAY_SIZE(ov2659_formats); 1004 1005 dev_dbg(&client->dev, "%s:\n", __func__); 1006 1007 if (fse->index >= ARRAY_SIZE(ov2659_framesizes)) 1008 return -EINVAL; 1009 1010 while (--i) 1011 if (fse->code == ov2659_formats[i].code) 1012 break; 1013 1014 fse->code = ov2659_formats[i].code; 1015 1016 fse->min_width = ov2659_framesizes[fse->index].width; 1017 fse->max_width = fse->min_width; 1018 fse->max_height = ov2659_framesizes[fse->index].height; 1019 fse->min_height = fse->max_height; 1020 1021 return 0; 1022 } 1023 1024 static int ov2659_get_fmt(struct v4l2_subdev *sd, 1025 struct v4l2_subdev_state *sd_state, 1026 struct v4l2_subdev_format *fmt) 1027 { 1028 struct i2c_client *client = v4l2_get_subdevdata(sd); 1029 struct ov2659 *ov2659 = to_ov2659(sd); 1030 1031 dev_dbg(&client->dev, "ov2659_get_fmt\n"); 1032 1033 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { 1034 struct v4l2_mbus_framefmt *mf; 1035 1036 mf = v4l2_subdev_state_get_format(sd_state, 0); 1037 mutex_lock(&ov2659->lock); 1038 fmt->format = *mf; 1039 mutex_unlock(&ov2659->lock); 1040 return 0; 1041 } 1042 1043 mutex_lock(&ov2659->lock); 1044 fmt->format = ov2659->format; 1045 mutex_unlock(&ov2659->lock); 1046 1047 dev_dbg(&client->dev, "ov2659_get_fmt: %x %dx%d\n", 1048 ov2659->format.code, ov2659->format.width, 1049 ov2659->format.height); 1050 1051 return 0; 1052 } 1053 1054 static void __ov2659_try_frame_size(struct v4l2_mbus_framefmt *mf, 1055 const struct ov2659_framesize **size) 1056 { 1057 const struct ov2659_framesize *fsize = &ov2659_framesizes[0]; 1058 const struct ov2659_framesize *match = NULL; 1059 int i = ARRAY_SIZE(ov2659_framesizes); 1060 unsigned int min_err = UINT_MAX; 1061 1062 while (i--) { 1063 int err = abs(fsize->width - mf->width) 1064 + abs(fsize->height - mf->height); 1065 if ((err < min_err) && (fsize->regs[0].addr)) { 1066 min_err = err; 1067 match = fsize; 1068 } 1069 fsize++; 1070 } 1071 1072 if (!match) 1073 match = &ov2659_framesizes[2]; 1074 1075 mf->width = match->width; 1076 mf->height = match->height; 1077 1078 if (size) 1079 *size = match; 1080 } 1081 1082 static int ov2659_set_fmt(struct v4l2_subdev *sd, 1083 struct v4l2_subdev_state *sd_state, 1084 struct v4l2_subdev_format *fmt) 1085 { 1086 struct i2c_client *client = v4l2_get_subdevdata(sd); 1087 int index = ARRAY_SIZE(ov2659_formats); 1088 struct v4l2_mbus_framefmt *mf = &fmt->format; 1089 const struct ov2659_framesize *size = NULL; 1090 struct ov2659 *ov2659 = to_ov2659(sd); 1091 int ret = 0; 1092 1093 dev_dbg(&client->dev, "ov2659_set_fmt\n"); 1094 1095 __ov2659_try_frame_size(mf, &size); 1096 1097 while (--index >= 0) 1098 if (ov2659_formats[index].code == mf->code) 1099 break; 1100 1101 if (index < 0) { 1102 index = 0; 1103 mf->code = ov2659_formats[index].code; 1104 } 1105 1106 mf->colorspace = V4L2_COLORSPACE_SRGB; 1107 mf->field = V4L2_FIELD_NONE; 1108 1109 mutex_lock(&ov2659->lock); 1110 1111 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { 1112 mf = v4l2_subdev_state_get_format(sd_state, fmt->pad); 1113 *mf = fmt->format; 1114 } else { 1115 s64 val; 1116 1117 if (ov2659->streaming) { 1118 mutex_unlock(&ov2659->lock); 1119 return -EBUSY; 1120 } 1121 1122 ov2659->frame_size = size; 1123 ov2659->format = fmt->format; 1124 ov2659->format_ctrl_regs = 1125 ov2659_formats[index].format_ctrl_regs; 1126 1127 if (ov2659->format.code != MEDIA_BUS_FMT_SBGGR8_1X8) 1128 val = ov2659->pdata->link_frequency / 2; 1129 else 1130 val = ov2659->pdata->link_frequency; 1131 1132 ret = v4l2_ctrl_s_ctrl_int64(ov2659->link_frequency, val); 1133 if (ret < 0) 1134 dev_warn(&client->dev, 1135 "failed to set link_frequency rate (%d)\n", 1136 ret); 1137 } 1138 1139 mutex_unlock(&ov2659->lock); 1140 return ret; 1141 } 1142 1143 static int ov2659_set_frame_size(struct ov2659 *ov2659) 1144 { 1145 struct i2c_client *client = ov2659->client; 1146 1147 dev_dbg(&client->dev, "%s\n", __func__); 1148 1149 return ov2659_write_array(ov2659->client, ov2659->frame_size->regs); 1150 } 1151 1152 static int ov2659_set_format(struct ov2659 *ov2659) 1153 { 1154 struct i2c_client *client = ov2659->client; 1155 1156 dev_dbg(&client->dev, "%s\n", __func__); 1157 1158 return ov2659_write_array(ov2659->client, ov2659->format_ctrl_regs); 1159 } 1160 1161 static int ov2659_s_stream(struct v4l2_subdev *sd, int on) 1162 { 1163 struct i2c_client *client = v4l2_get_subdevdata(sd); 1164 struct ov2659 *ov2659 = to_ov2659(sd); 1165 int ret = 0; 1166 1167 dev_dbg(&client->dev, "%s: on: %d\n", __func__, on); 1168 1169 mutex_lock(&ov2659->lock); 1170 1171 on = !!on; 1172 1173 if (ov2659->streaming == on) 1174 goto unlock; 1175 1176 if (!on) { 1177 /* Stop Streaming Sequence */ 1178 ov2659_set_streaming(ov2659, 0); 1179 ov2659->streaming = on; 1180 pm_runtime_put(&client->dev); 1181 goto unlock; 1182 } 1183 1184 ret = pm_runtime_resume_and_get(&client->dev); 1185 if (ret < 0) 1186 goto unlock; 1187 1188 ret = ov2659_init(sd, 0); 1189 if (!ret) 1190 ret = ov2659_set_pixel_clock(ov2659); 1191 if (!ret) 1192 ret = ov2659_set_frame_size(ov2659); 1193 if (!ret) 1194 ret = ov2659_set_format(ov2659); 1195 if (!ret) { 1196 ov2659_set_streaming(ov2659, 1); 1197 ov2659->streaming = on; 1198 } 1199 1200 unlock: 1201 mutex_unlock(&ov2659->lock); 1202 return ret; 1203 } 1204 1205 static int ov2659_set_test_pattern(struct ov2659 *ov2659, int value) 1206 { 1207 struct i2c_client *client = v4l2_get_subdevdata(&ov2659->sd); 1208 int ret; 1209 u8 val; 1210 1211 ret = ov2659_read(client, REG_PRE_ISP_CTRL00, &val); 1212 if (ret < 0) 1213 return ret; 1214 1215 switch (value) { 1216 case 0: 1217 val &= ~TEST_PATTERN_ENABLE; 1218 break; 1219 case 1: 1220 val &= VERTICAL_COLOR_BAR_MASK; 1221 val |= TEST_PATTERN_ENABLE; 1222 break; 1223 } 1224 1225 return ov2659_write(client, REG_PRE_ISP_CTRL00, val); 1226 } 1227 1228 static int ov2659_s_ctrl(struct v4l2_ctrl *ctrl) 1229 { 1230 struct ov2659 *ov2659 = 1231 container_of(ctrl->handler, struct ov2659, ctrls); 1232 struct i2c_client *client = ov2659->client; 1233 1234 /* V4L2 controls values will be applied only when power is already up */ 1235 if (!pm_runtime_get_if_in_use(&client->dev)) 1236 return 0; 1237 1238 switch (ctrl->id) { 1239 case V4L2_CID_TEST_PATTERN: 1240 return ov2659_set_test_pattern(ov2659, ctrl->val); 1241 } 1242 1243 pm_runtime_put(&client->dev); 1244 return 0; 1245 } 1246 1247 static const struct v4l2_ctrl_ops ov2659_ctrl_ops = { 1248 .s_ctrl = ov2659_s_ctrl, 1249 }; 1250 1251 static const char * const ov2659_test_pattern_menu[] = { 1252 "Disabled", 1253 "Vertical Color Bars", 1254 }; 1255 1256 static int ov2659_power_off(struct device *dev) 1257 { 1258 struct i2c_client *client = to_i2c_client(dev); 1259 struct v4l2_subdev *sd = i2c_get_clientdata(client); 1260 struct ov2659 *ov2659 = to_ov2659(sd); 1261 1262 dev_dbg(&client->dev, "%s:\n", __func__); 1263 1264 gpiod_set_value(ov2659->pwdn_gpio, 1); 1265 1266 clk_disable_unprepare(ov2659->clk); 1267 1268 return 0; 1269 } 1270 1271 static int ov2659_power_on(struct device *dev) 1272 { 1273 struct i2c_client *client = to_i2c_client(dev); 1274 struct v4l2_subdev *sd = i2c_get_clientdata(client); 1275 struct ov2659 *ov2659 = to_ov2659(sd); 1276 int ret; 1277 1278 dev_dbg(&client->dev, "%s:\n", __func__); 1279 1280 ret = clk_prepare_enable(ov2659->clk); 1281 if (ret) { 1282 dev_err(&client->dev, "%s: failed to enable clock\n", 1283 __func__); 1284 return ret; 1285 } 1286 1287 gpiod_set_value(ov2659->pwdn_gpio, 0); 1288 1289 if (ov2659->resetb_gpio) { 1290 gpiod_set_value(ov2659->resetb_gpio, 1); 1291 usleep_range(500, 1000); 1292 gpiod_set_value(ov2659->resetb_gpio, 0); 1293 usleep_range(3000, 5000); 1294 } 1295 1296 return 0; 1297 } 1298 1299 /* ----------------------------------------------------------------------------- 1300 * V4L2 subdev internal operations 1301 */ 1302 1303 static int ov2659_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) 1304 { 1305 struct i2c_client *client = v4l2_get_subdevdata(sd); 1306 struct v4l2_mbus_framefmt *format = 1307 v4l2_subdev_state_get_format(fh->state, 0); 1308 1309 dev_dbg(&client->dev, "%s:\n", __func__); 1310 1311 ov2659_get_default_format(format); 1312 1313 return 0; 1314 } 1315 1316 static const struct v4l2_subdev_core_ops ov2659_subdev_core_ops = { 1317 .log_status = v4l2_ctrl_subdev_log_status, 1318 .subscribe_event = v4l2_ctrl_subdev_subscribe_event, 1319 .unsubscribe_event = v4l2_event_subdev_unsubscribe, 1320 }; 1321 1322 static const struct v4l2_subdev_video_ops ov2659_subdev_video_ops = { 1323 .s_stream = ov2659_s_stream, 1324 }; 1325 1326 static const struct v4l2_subdev_pad_ops ov2659_subdev_pad_ops = { 1327 .enum_mbus_code = ov2659_enum_mbus_code, 1328 .enum_frame_size = ov2659_enum_frame_sizes, 1329 .get_fmt = ov2659_get_fmt, 1330 .set_fmt = ov2659_set_fmt, 1331 }; 1332 1333 static const struct v4l2_subdev_ops ov2659_subdev_ops = { 1334 .core = &ov2659_subdev_core_ops, 1335 .video = &ov2659_subdev_video_ops, 1336 .pad = &ov2659_subdev_pad_ops, 1337 }; 1338 1339 static const struct v4l2_subdev_internal_ops ov2659_subdev_internal_ops = { 1340 .open = ov2659_open, 1341 }; 1342 1343 static int ov2659_detect(struct v4l2_subdev *sd) 1344 { 1345 struct i2c_client *client = v4l2_get_subdevdata(sd); 1346 u8 pid = 0; 1347 u8 ver = 0; 1348 int ret; 1349 1350 dev_dbg(&client->dev, "%s:\n", __func__); 1351 1352 ret = ov2659_write(client, REG_SOFTWARE_RESET, 0x01); 1353 if (ret != 0) { 1354 dev_err(&client->dev, "Sensor soft reset failed\n"); 1355 return -ENODEV; 1356 } 1357 usleep_range(1000, 2000); 1358 1359 /* Check sensor revision */ 1360 ret = ov2659_read(client, REG_SC_CHIP_ID_H, &pid); 1361 if (!ret) 1362 ret = ov2659_read(client, REG_SC_CHIP_ID_L, &ver); 1363 1364 if (!ret) { 1365 unsigned short id; 1366 1367 id = OV265X_ID(pid, ver); 1368 if (id != OV2659_ID) { 1369 dev_err(&client->dev, 1370 "Sensor detection failed (%04X)\n", id); 1371 ret = -ENODEV; 1372 } else { 1373 dev_info(&client->dev, "Found OV%04X sensor\n", id); 1374 } 1375 } 1376 1377 return ret; 1378 } 1379 1380 static struct ov2659_platform_data * 1381 ov2659_get_pdata(struct i2c_client *client) 1382 { 1383 struct ov2659_platform_data *pdata; 1384 struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 }; 1385 struct device_node *endpoint; 1386 int ret; 1387 1388 if (!IS_ENABLED(CONFIG_OF) || !client->dev.of_node) 1389 return client->dev.platform_data; 1390 1391 endpoint = of_graph_get_next_endpoint(client->dev.of_node, NULL); 1392 if (!endpoint) 1393 return NULL; 1394 1395 ret = v4l2_fwnode_endpoint_alloc_parse(of_fwnode_handle(endpoint), 1396 &bus_cfg); 1397 if (ret) { 1398 pdata = NULL; 1399 goto done; 1400 } 1401 1402 pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL); 1403 if (!pdata) 1404 goto done; 1405 1406 if (!bus_cfg.nr_of_link_frequencies) { 1407 dev_err(&client->dev, 1408 "link-frequencies property not found or too many\n"); 1409 pdata = NULL; 1410 goto done; 1411 } 1412 1413 pdata->link_frequency = bus_cfg.link_frequencies[0]; 1414 1415 done: 1416 v4l2_fwnode_endpoint_free(&bus_cfg); 1417 of_node_put(endpoint); 1418 return pdata; 1419 } 1420 1421 static int ov2659_probe(struct i2c_client *client) 1422 { 1423 const struct ov2659_platform_data *pdata = ov2659_get_pdata(client); 1424 struct v4l2_subdev *sd; 1425 struct ov2659 *ov2659; 1426 int ret; 1427 1428 if (!pdata) { 1429 dev_err(&client->dev, "platform data not specified\n"); 1430 return -EINVAL; 1431 } 1432 1433 ov2659 = devm_kzalloc(&client->dev, sizeof(*ov2659), GFP_KERNEL); 1434 if (!ov2659) 1435 return -ENOMEM; 1436 1437 ov2659->pdata = pdata; 1438 ov2659->client = client; 1439 1440 ov2659->clk = devm_clk_get(&client->dev, "xvclk"); 1441 if (IS_ERR(ov2659->clk)) 1442 return PTR_ERR(ov2659->clk); 1443 1444 ov2659->xvclk_frequency = clk_get_rate(ov2659->clk); 1445 if (ov2659->xvclk_frequency < 6000000 || 1446 ov2659->xvclk_frequency > 27000000) 1447 return -EINVAL; 1448 1449 /* Optional gpio don't fail if not present */ 1450 ov2659->pwdn_gpio = devm_gpiod_get_optional(&client->dev, "powerdown", 1451 GPIOD_OUT_LOW); 1452 if (IS_ERR(ov2659->pwdn_gpio)) 1453 return PTR_ERR(ov2659->pwdn_gpio); 1454 1455 /* Optional gpio don't fail if not present */ 1456 ov2659->resetb_gpio = devm_gpiod_get_optional(&client->dev, "reset", 1457 GPIOD_OUT_HIGH); 1458 if (IS_ERR(ov2659->resetb_gpio)) 1459 return PTR_ERR(ov2659->resetb_gpio); 1460 1461 v4l2_ctrl_handler_init(&ov2659->ctrls, 2); 1462 ov2659->link_frequency = 1463 v4l2_ctrl_new_std(&ov2659->ctrls, &ov2659_ctrl_ops, 1464 V4L2_CID_PIXEL_RATE, 1465 pdata->link_frequency / 2, 1466 pdata->link_frequency, 1, 1467 pdata->link_frequency); 1468 v4l2_ctrl_new_std_menu_items(&ov2659->ctrls, &ov2659_ctrl_ops, 1469 V4L2_CID_TEST_PATTERN, 1470 ARRAY_SIZE(ov2659_test_pattern_menu) - 1, 1471 0, 0, ov2659_test_pattern_menu); 1472 ov2659->sd.ctrl_handler = &ov2659->ctrls; 1473 1474 if (ov2659->ctrls.error) { 1475 dev_err(&client->dev, "%s: control initialization error %d\n", 1476 __func__, ov2659->ctrls.error); 1477 return ov2659->ctrls.error; 1478 } 1479 1480 sd = &ov2659->sd; 1481 client->flags |= I2C_CLIENT_SCCB; 1482 1483 v4l2_i2c_subdev_init(sd, client, &ov2659_subdev_ops); 1484 sd->internal_ops = &ov2659_subdev_internal_ops; 1485 sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | 1486 V4L2_SUBDEV_FL_HAS_EVENTS; 1487 1488 ov2659->pad.flags = MEDIA_PAD_FL_SOURCE; 1489 sd->entity.function = MEDIA_ENT_F_CAM_SENSOR; 1490 ret = media_entity_pads_init(&sd->entity, 1, &ov2659->pad); 1491 if (ret < 0) { 1492 v4l2_ctrl_handler_free(&ov2659->ctrls); 1493 return ret; 1494 } 1495 1496 mutex_init(&ov2659->lock); 1497 1498 ov2659_get_default_format(&ov2659->format); 1499 ov2659->frame_size = &ov2659_framesizes[2]; 1500 ov2659->format_ctrl_regs = ov2659_formats[0].format_ctrl_regs; 1501 1502 ret = ov2659_power_on(&client->dev); 1503 if (ret < 0) 1504 goto error; 1505 1506 ret = ov2659_detect(sd); 1507 if (ret < 0) 1508 goto error; 1509 1510 /* Calculate the PLL register value needed */ 1511 ov2659_pll_calc_params(ov2659); 1512 1513 ret = v4l2_async_register_subdev(&ov2659->sd); 1514 if (ret) 1515 goto error; 1516 1517 dev_info(&client->dev, "%s sensor driver registered !!\n", sd->name); 1518 1519 pm_runtime_set_active(&client->dev); 1520 pm_runtime_enable(&client->dev); 1521 pm_runtime_idle(&client->dev); 1522 1523 return 0; 1524 1525 error: 1526 v4l2_ctrl_handler_free(&ov2659->ctrls); 1527 ov2659_power_off(&client->dev); 1528 media_entity_cleanup(&sd->entity); 1529 mutex_destroy(&ov2659->lock); 1530 return ret; 1531 } 1532 1533 static void ov2659_remove(struct i2c_client *client) 1534 { 1535 struct v4l2_subdev *sd = i2c_get_clientdata(client); 1536 struct ov2659 *ov2659 = to_ov2659(sd); 1537 1538 v4l2_ctrl_handler_free(&ov2659->ctrls); 1539 v4l2_async_unregister_subdev(sd); 1540 media_entity_cleanup(&sd->entity); 1541 mutex_destroy(&ov2659->lock); 1542 1543 pm_runtime_disable(&client->dev); 1544 if (!pm_runtime_status_suspended(&client->dev)) 1545 ov2659_power_off(&client->dev); 1546 pm_runtime_set_suspended(&client->dev); 1547 } 1548 1549 static const struct dev_pm_ops ov2659_pm_ops = { 1550 SET_RUNTIME_PM_OPS(ov2659_power_off, ov2659_power_on, NULL) 1551 }; 1552 1553 static const struct i2c_device_id ov2659_id[] = { 1554 { "ov2659", 0 }, 1555 { /* sentinel */ }, 1556 }; 1557 MODULE_DEVICE_TABLE(i2c, ov2659_id); 1558 1559 #if IS_ENABLED(CONFIG_OF) 1560 static const struct of_device_id ov2659_of_match[] = { 1561 { .compatible = "ovti,ov2659", }, 1562 { /* sentinel */ }, 1563 }; 1564 MODULE_DEVICE_TABLE(of, ov2659_of_match); 1565 #endif 1566 1567 static struct i2c_driver ov2659_i2c_driver = { 1568 .driver = { 1569 .name = DRIVER_NAME, 1570 .pm = &ov2659_pm_ops, 1571 .of_match_table = of_match_ptr(ov2659_of_match), 1572 }, 1573 .probe = ov2659_probe, 1574 .remove = ov2659_remove, 1575 .id_table = ov2659_id, 1576 }; 1577 1578 module_i2c_driver(ov2659_i2c_driver); 1579 1580 MODULE_AUTHOR("Benoit Parrot <bparrot@ti.com>"); 1581 MODULE_DESCRIPTION("OV2659 CMOS Image Sensor driver"); 1582 MODULE_LICENSE("GPL v2"); 1583