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 const struct ov2659_framesize *frame_size; 208 struct sensor_register *format_ctrl_regs; 209 struct ov2659_pll_ctrl pll; 210 int streaming; 211 /* used to control the sensor PWDN pin */ 212 struct gpio_desc *pwdn_gpio; 213 /* used to control the sensor RESETB pin */ 214 struct gpio_desc *resetb_gpio; 215 }; 216 217 static const struct sensor_register ov2659_init_regs[] = { 218 { REG_IO_CTRL00, 0x03 }, 219 { REG_IO_CTRL01, 0xff }, 220 { REG_IO_CTRL02, 0xe0 }, 221 { 0x3633, 0x3d }, 222 { 0x3620, 0x02 }, 223 { 0x3631, 0x11 }, 224 { 0x3612, 0x04 }, 225 { 0x3630, 0x20 }, 226 { 0x4702, 0x02 }, 227 { 0x370c, 0x34 }, 228 { REG_TIMING_HS_H, 0x00 }, 229 { REG_TIMING_HS_L, 0x00 }, 230 { REG_TIMING_VS_H, 0x00 }, 231 { REG_TIMING_VS_L, 0x00 }, 232 { REG_TIMING_HW_H, 0x06 }, 233 { REG_TIMING_HW_L, 0x5f }, 234 { REG_TIMING_VH_H, 0x04 }, 235 { REG_TIMING_VH_L, 0xb7 }, 236 { REG_TIMING_DVPHO_H, 0x03 }, 237 { REG_TIMING_DVPHO_L, 0x20 }, 238 { REG_TIMING_DVPVO_H, 0x02 }, 239 { REG_TIMING_DVPVO_L, 0x58 }, 240 { REG_TIMING_HTS_H, 0x05 }, 241 { REG_TIMING_HTS_L, 0x14 }, 242 { REG_TIMING_VTS_H, 0x02 }, 243 { REG_TIMING_VTS_L, 0x68 }, 244 { REG_TIMING_HOFFS_L, 0x08 }, 245 { REG_TIMING_VOFFS_L, 0x02 }, 246 { REG_TIMING_XINC, 0x31 }, 247 { REG_TIMING_YINC, 0x31 }, 248 { 0x3a02, 0x02 }, 249 { 0x3a03, 0x68 }, 250 { 0x3a08, 0x00 }, 251 { 0x3a09, 0x5c }, 252 { 0x3a0a, 0x00 }, 253 { 0x3a0b, 0x4d }, 254 { 0x3a0d, 0x08 }, 255 { 0x3a0e, 0x06 }, 256 { 0x3a14, 0x02 }, 257 { 0x3a15, 0x28 }, 258 { REG_DVP_CTRL02, 0x01 }, 259 { 0x3623, 0x00 }, 260 { 0x3634, 0x76 }, 261 { 0x3701, 0x44 }, 262 { 0x3702, 0x18 }, 263 { 0x3703, 0x24 }, 264 { 0x3704, 0x24 }, 265 { 0x3705, 0x0c }, 266 { REG_TIMING_VERT_FORMAT, 0x81 }, 267 { REG_TIMING_HORIZ_FORMAT, 0x01 }, 268 { 0x370a, 0x52 }, 269 { REG_VFIFO_READ_START_H, 0x00 }, 270 { REG_VFIFO_READ_START_L, 0x80 }, 271 { REG_FORMAT_CTRL00, 0x30 }, 272 { 0x5086, 0x02 }, 273 { REG_ISP_CTRL00, 0xfb }, 274 { REG_ISP_CTRL01, 0x1f }, 275 { REG_ISP_CTRL02, 0x00 }, 276 { 0x5025, 0x0e }, 277 { 0x5026, 0x18 }, 278 { 0x5027, 0x34 }, 279 { 0x5028, 0x4c }, 280 { 0x5029, 0x62 }, 281 { 0x502a, 0x74 }, 282 { 0x502b, 0x85 }, 283 { 0x502c, 0x92 }, 284 { 0x502d, 0x9e }, 285 { 0x502e, 0xb2 }, 286 { 0x502f, 0xc0 }, 287 { 0x5030, 0xcc }, 288 { 0x5031, 0xe0 }, 289 { 0x5032, 0xee }, 290 { 0x5033, 0xf6 }, 291 { 0x5034, 0x11 }, 292 { 0x5070, 0x1c }, 293 { 0x5071, 0x5b }, 294 { 0x5072, 0x05 }, 295 { 0x5073, 0x20 }, 296 { 0x5074, 0x94 }, 297 { 0x5075, 0xb4 }, 298 { 0x5076, 0xb4 }, 299 { 0x5077, 0xaf }, 300 { 0x5078, 0x05 }, 301 { REG_CMX_SIGN, 0x98 }, 302 { REG_CMX_MISC_CTRL, 0x21 }, 303 { REG_AWB_CTRL00, 0x6a }, 304 { REG_AWB_CTRL01, 0x11 }, 305 { REG_AWB_CTRL02, 0x92 }, 306 { REG_AWB_CTRL03, 0x21 }, 307 { REG_AWB_CTRL04, 0xe1 }, 308 { REG_AWB_LOCAL_LIMIT, 0x01 }, 309 { 0x503c, 0x05 }, 310 { 0x503d, 0x08 }, 311 { 0x503e, 0x08 }, 312 { 0x503f, 0x64 }, 313 { 0x5040, 0x58 }, 314 { 0x5041, 0x2a }, 315 { 0x5042, 0xc5 }, 316 { 0x5043, 0x2e }, 317 { 0x5044, 0x3a }, 318 { 0x5045, 0x3c }, 319 { 0x5046, 0x44 }, 320 { 0x5047, 0xf8 }, 321 { 0x5048, 0x08 }, 322 { REG_AWB_CTRL12, 0x70 }, 323 { REG_AWB_CTRL13, 0xf0 }, 324 { REG_AWB_CTRL14, 0xf0 }, 325 { REG_LENC_RED_X0_H, 0x03 }, 326 { REG_LENC_RED_X0_L, 0x20 }, 327 { REG_LENC_RED_Y0_H, 0x02 }, 328 { REG_LENC_RED_Y0_L, 0x5c }, 329 { REG_LENC_RED_A1, 0x48 }, 330 { REG_LENC_RED_B1, 0x00 }, 331 { REG_LENC_RED_A2_B2, 0x66 }, 332 { REG_LENC_GREEN_X0_H, 0x03 }, 333 { REG_LENC_GREEN_X0_L, 0x30 }, 334 { REG_LENC_GREEN_Y0_H, 0x02 }, 335 { REG_LENC_GREEN_Y0_L, 0x7c }, 336 { REG_LENC_GREEN_A1, 0x40 }, 337 { REG_LENC_GREEN_B1, 0x00 }, 338 { REG_LENC_GREEN_A2_B2, 0x66 }, 339 { REG_LENC_BLUE_X0_H, 0x03 }, 340 { REG_LENC_BLUE_X0_L, 0x10 }, 341 { REG_LENC_BLUE_Y0_H, 0x02 }, 342 { REG_LENC_BLUE_Y0_L, 0x7c }, 343 { REG_LENC_BLUE_A1, 0x3a }, 344 { REG_LENC_BLUE_B1, 0x00 }, 345 { REG_LENC_BLUE_A2_B2, 0x66 }, 346 { REG_CIP_CTRL00, 0x44 }, 347 { REG_SHARPENMT_THRESH1, 0x08 }, 348 { REG_SHARPENMT_THRESH2, 0x10 }, 349 { REG_SHARPENMT_OFFSET1, 0x12 }, 350 { REG_SHARPENMT_OFFSET2, 0x02 }, 351 { REG_SHARPEN_THRESH1, 0x08 }, 352 { REG_SHARPEN_THRESH2, 0x10 }, 353 { REG_CIP_CTRL01, 0xa6 }, 354 { REG_DENOISE_THRESH1, 0x08 }, 355 { REG_DENOISE_THRESH2, 0x10 }, 356 { REG_DENOISE_OFFSET1, 0x04 }, 357 { REG_DENOISE_OFFSET2, 0x12 }, 358 { 0x507e, 0x40 }, 359 { 0x507f, 0x20 }, 360 { 0x507b, 0x02 }, 361 { REG_CMX_MISC_CTRL, 0x01 }, 362 { 0x5084, 0x0c }, 363 { 0x5085, 0x3e }, 364 { 0x5005, 0x80 }, 365 { 0x3a0f, 0x30 }, 366 { 0x3a10, 0x28 }, 367 { 0x3a1b, 0x32 }, 368 { 0x3a1e, 0x26 }, 369 { 0x3a11, 0x60 }, 370 { 0x3a1f, 0x14 }, 371 { 0x5060, 0x69 }, 372 { 0x5061, 0x7d }, 373 { 0x5062, 0x7d }, 374 { 0x5063, 0x69 }, 375 { REG_NULL, 0x00 }, 376 }; 377 378 /* 1280X720 720p */ 379 static struct sensor_register ov2659_720p[] = { 380 { REG_TIMING_HS_H, 0x00 }, 381 { REG_TIMING_HS_L, 0xa0 }, 382 { REG_TIMING_VS_H, 0x00 }, 383 { REG_TIMING_VS_L, 0xf0 }, 384 { REG_TIMING_HW_H, 0x05 }, 385 { REG_TIMING_HW_L, 0xbf }, 386 { REG_TIMING_VH_H, 0x03 }, 387 { REG_TIMING_VH_L, 0xcb }, 388 { REG_TIMING_DVPHO_H, 0x05 }, 389 { REG_TIMING_DVPHO_L, 0x00 }, 390 { REG_TIMING_DVPVO_H, 0x02 }, 391 { REG_TIMING_DVPVO_L, 0xd0 }, 392 { REG_TIMING_HTS_H, 0x06 }, 393 { REG_TIMING_HTS_L, 0x4c }, 394 { REG_TIMING_VTS_H, 0x02 }, 395 { REG_TIMING_VTS_L, 0xe8 }, 396 { REG_TIMING_HOFFS_L, 0x10 }, 397 { REG_TIMING_VOFFS_L, 0x06 }, 398 { REG_TIMING_XINC, 0x11 }, 399 { REG_TIMING_YINC, 0x11 }, 400 { REG_TIMING_VERT_FORMAT, 0x80 }, 401 { REG_TIMING_HORIZ_FORMAT, 0x00 }, 402 { 0x370a, 0x12 }, 403 { 0x3a03, 0xe8 }, 404 { 0x3a09, 0x6f }, 405 { 0x3a0b, 0x5d }, 406 { 0x3a15, 0x9a }, 407 { REG_VFIFO_READ_START_H, 0x00 }, 408 { REG_VFIFO_READ_START_L, 0x80 }, 409 { REG_ISP_CTRL02, 0x00 }, 410 { REG_NULL, 0x00 }, 411 }; 412 413 /* 1600X1200 UXGA */ 414 static struct sensor_register ov2659_uxga[] = { 415 { REG_TIMING_HS_H, 0x00 }, 416 { REG_TIMING_HS_L, 0x00 }, 417 { REG_TIMING_VS_H, 0x00 }, 418 { REG_TIMING_VS_L, 0x00 }, 419 { REG_TIMING_HW_H, 0x06 }, 420 { REG_TIMING_HW_L, 0x5f }, 421 { REG_TIMING_VH_H, 0x04 }, 422 { REG_TIMING_VH_L, 0xbb }, 423 { REG_TIMING_DVPHO_H, 0x06 }, 424 { REG_TIMING_DVPHO_L, 0x40 }, 425 { REG_TIMING_DVPVO_H, 0x04 }, 426 { REG_TIMING_DVPVO_L, 0xb0 }, 427 { REG_TIMING_HTS_H, 0x07 }, 428 { REG_TIMING_HTS_L, 0x9f }, 429 { REG_TIMING_VTS_H, 0x04 }, 430 { REG_TIMING_VTS_L, 0xd0 }, 431 { REG_TIMING_HOFFS_L, 0x10 }, 432 { REG_TIMING_VOFFS_L, 0x06 }, 433 { REG_TIMING_XINC, 0x11 }, 434 { REG_TIMING_YINC, 0x11 }, 435 { 0x3a02, 0x04 }, 436 { 0x3a03, 0xd0 }, 437 { 0x3a08, 0x00 }, 438 { 0x3a09, 0xb8 }, 439 { 0x3a0a, 0x00 }, 440 { 0x3a0b, 0x9a }, 441 { 0x3a0d, 0x08 }, 442 { 0x3a0e, 0x06 }, 443 { 0x3a14, 0x04 }, 444 { 0x3a15, 0x50 }, 445 { 0x3623, 0x00 }, 446 { 0x3634, 0x44 }, 447 { 0x3701, 0x44 }, 448 { 0x3702, 0x30 }, 449 { 0x3703, 0x48 }, 450 { 0x3704, 0x48 }, 451 { 0x3705, 0x18 }, 452 { REG_TIMING_VERT_FORMAT, 0x80 }, 453 { REG_TIMING_HORIZ_FORMAT, 0x00 }, 454 { 0x370a, 0x12 }, 455 { REG_VFIFO_READ_START_H, 0x00 }, 456 { REG_VFIFO_READ_START_L, 0x80 }, 457 { REG_ISP_CTRL02, 0x00 }, 458 { REG_NULL, 0x00 }, 459 }; 460 461 /* 1280X1024 SXGA */ 462 static struct sensor_register ov2659_sxga[] = { 463 { REG_TIMING_HS_H, 0x00 }, 464 { REG_TIMING_HS_L, 0x00 }, 465 { REG_TIMING_VS_H, 0x00 }, 466 { REG_TIMING_VS_L, 0x00 }, 467 { REG_TIMING_HW_H, 0x06 }, 468 { REG_TIMING_HW_L, 0x5f }, 469 { REG_TIMING_VH_H, 0x04 }, 470 { REG_TIMING_VH_L, 0xb7 }, 471 { REG_TIMING_DVPHO_H, 0x05 }, 472 { REG_TIMING_DVPHO_L, 0x00 }, 473 { REG_TIMING_DVPVO_H, 0x04 }, 474 { REG_TIMING_DVPVO_L, 0x00 }, 475 { REG_TIMING_HTS_H, 0x07 }, 476 { REG_TIMING_HTS_L, 0x9c }, 477 { REG_TIMING_VTS_H, 0x04 }, 478 { REG_TIMING_VTS_L, 0xd0 }, 479 { REG_TIMING_HOFFS_L, 0x10 }, 480 { REG_TIMING_VOFFS_L, 0x06 }, 481 { REG_TIMING_XINC, 0x11 }, 482 { REG_TIMING_YINC, 0x11 }, 483 { 0x3a02, 0x02 }, 484 { 0x3a03, 0x68 }, 485 { 0x3a08, 0x00 }, 486 { 0x3a09, 0x5c }, 487 { 0x3a0a, 0x00 }, 488 { 0x3a0b, 0x4d }, 489 { 0x3a0d, 0x08 }, 490 { 0x3a0e, 0x06 }, 491 { 0x3a14, 0x02 }, 492 { 0x3a15, 0x28 }, 493 { 0x3623, 0x00 }, 494 { 0x3634, 0x76 }, 495 { 0x3701, 0x44 }, 496 { 0x3702, 0x18 }, 497 { 0x3703, 0x24 }, 498 { 0x3704, 0x24 }, 499 { 0x3705, 0x0c }, 500 { REG_TIMING_VERT_FORMAT, 0x80 }, 501 { REG_TIMING_HORIZ_FORMAT, 0x00 }, 502 { 0x370a, 0x52 }, 503 { REG_VFIFO_READ_START_H, 0x00 }, 504 { REG_VFIFO_READ_START_L, 0x80 }, 505 { REG_ISP_CTRL02, 0x00 }, 506 { REG_NULL, 0x00 }, 507 }; 508 509 /* 1024X768 SXGA */ 510 static struct sensor_register ov2659_xga[] = { 511 { REG_TIMING_HS_H, 0x00 }, 512 { REG_TIMING_HS_L, 0x00 }, 513 { REG_TIMING_VS_H, 0x00 }, 514 { REG_TIMING_VS_L, 0x00 }, 515 { REG_TIMING_HW_H, 0x06 }, 516 { REG_TIMING_HW_L, 0x5f }, 517 { REG_TIMING_VH_H, 0x04 }, 518 { REG_TIMING_VH_L, 0xb7 }, 519 { REG_TIMING_DVPHO_H, 0x04 }, 520 { REG_TIMING_DVPHO_L, 0x00 }, 521 { REG_TIMING_DVPVO_H, 0x03 }, 522 { REG_TIMING_DVPVO_L, 0x00 }, 523 { REG_TIMING_HTS_H, 0x07 }, 524 { REG_TIMING_HTS_L, 0x9c }, 525 { REG_TIMING_VTS_H, 0x04 }, 526 { REG_TIMING_VTS_L, 0xd0 }, 527 { REG_TIMING_HOFFS_L, 0x10 }, 528 { REG_TIMING_VOFFS_L, 0x06 }, 529 { REG_TIMING_XINC, 0x11 }, 530 { REG_TIMING_YINC, 0x11 }, 531 { 0x3a02, 0x02 }, 532 { 0x3a03, 0x68 }, 533 { 0x3a08, 0x00 }, 534 { 0x3a09, 0x5c }, 535 { 0x3a0a, 0x00 }, 536 { 0x3a0b, 0x4d }, 537 { 0x3a0d, 0x08 }, 538 { 0x3a0e, 0x06 }, 539 { 0x3a14, 0x02 }, 540 { 0x3a15, 0x28 }, 541 { 0x3623, 0x00 }, 542 { 0x3634, 0x76 }, 543 { 0x3701, 0x44 }, 544 { 0x3702, 0x18 }, 545 { 0x3703, 0x24 }, 546 { 0x3704, 0x24 }, 547 { 0x3705, 0x0c }, 548 { REG_TIMING_VERT_FORMAT, 0x80 }, 549 { REG_TIMING_HORIZ_FORMAT, 0x00 }, 550 { 0x370a, 0x52 }, 551 { REG_VFIFO_READ_START_H, 0x00 }, 552 { REG_VFIFO_READ_START_L, 0x80 }, 553 { REG_ISP_CTRL02, 0x00 }, 554 { REG_NULL, 0x00 }, 555 }; 556 557 /* 800X600 SVGA */ 558 static struct sensor_register ov2659_svga[] = { 559 { REG_TIMING_HS_H, 0x00 }, 560 { REG_TIMING_HS_L, 0x00 }, 561 { REG_TIMING_VS_H, 0x00 }, 562 { REG_TIMING_VS_L, 0x00 }, 563 { REG_TIMING_HW_H, 0x06 }, 564 { REG_TIMING_HW_L, 0x5f }, 565 { REG_TIMING_VH_H, 0x04 }, 566 { REG_TIMING_VH_L, 0xb7 }, 567 { REG_TIMING_DVPHO_H, 0x03 }, 568 { REG_TIMING_DVPHO_L, 0x20 }, 569 { REG_TIMING_DVPVO_H, 0x02 }, 570 { REG_TIMING_DVPVO_L, 0x58 }, 571 { REG_TIMING_HTS_H, 0x05 }, 572 { REG_TIMING_HTS_L, 0x14 }, 573 { REG_TIMING_VTS_H, 0x02 }, 574 { REG_TIMING_VTS_L, 0x68 }, 575 { REG_TIMING_HOFFS_L, 0x08 }, 576 { REG_TIMING_VOFFS_L, 0x02 }, 577 { REG_TIMING_XINC, 0x31 }, 578 { REG_TIMING_YINC, 0x31 }, 579 { 0x3a02, 0x02 }, 580 { 0x3a03, 0x68 }, 581 { 0x3a08, 0x00 }, 582 { 0x3a09, 0x5c }, 583 { 0x3a0a, 0x00 }, 584 { 0x3a0b, 0x4d }, 585 { 0x3a0d, 0x08 }, 586 { 0x3a0e, 0x06 }, 587 { 0x3a14, 0x02 }, 588 { 0x3a15, 0x28 }, 589 { 0x3623, 0x00 }, 590 { 0x3634, 0x76 }, 591 { 0x3701, 0x44 }, 592 { 0x3702, 0x18 }, 593 { 0x3703, 0x24 }, 594 { 0x3704, 0x24 }, 595 { 0x3705, 0x0c }, 596 { REG_TIMING_VERT_FORMAT, 0x81 }, 597 { REG_TIMING_HORIZ_FORMAT, 0x01 }, 598 { 0x370a, 0x52 }, 599 { REG_VFIFO_READ_START_H, 0x00 }, 600 { REG_VFIFO_READ_START_L, 0x80 }, 601 { REG_ISP_CTRL02, 0x00 }, 602 { REG_NULL, 0x00 }, 603 }; 604 605 /* 640X480 VGA */ 606 static struct sensor_register ov2659_vga[] = { 607 { REG_TIMING_HS_H, 0x00 }, 608 { REG_TIMING_HS_L, 0x00 }, 609 { REG_TIMING_VS_H, 0x00 }, 610 { REG_TIMING_VS_L, 0x00 }, 611 { REG_TIMING_HW_H, 0x06 }, 612 { REG_TIMING_HW_L, 0x5f }, 613 { REG_TIMING_VH_H, 0x04 }, 614 { REG_TIMING_VH_L, 0xb7 }, 615 { REG_TIMING_DVPHO_H, 0x02 }, 616 { REG_TIMING_DVPHO_L, 0x80 }, 617 { REG_TIMING_DVPVO_H, 0x01 }, 618 { REG_TIMING_DVPVO_L, 0xe0 }, 619 { REG_TIMING_HTS_H, 0x05 }, 620 { REG_TIMING_HTS_L, 0x14 }, 621 { REG_TIMING_VTS_H, 0x02 }, 622 { REG_TIMING_VTS_L, 0x68 }, 623 { REG_TIMING_HOFFS_L, 0x08 }, 624 { REG_TIMING_VOFFS_L, 0x02 }, 625 { REG_TIMING_XINC, 0x31 }, 626 { REG_TIMING_YINC, 0x31 }, 627 { 0x3a02, 0x02 }, 628 { 0x3a03, 0x68 }, 629 { 0x3a08, 0x00 }, 630 { 0x3a09, 0x5c }, 631 { 0x3a0a, 0x00 }, 632 { 0x3a0b, 0x4d }, 633 { 0x3a0d, 0x08 }, 634 { 0x3a0e, 0x06 }, 635 { 0x3a14, 0x02 }, 636 { 0x3a15, 0x28 }, 637 { 0x3623, 0x00 }, 638 { 0x3634, 0x76 }, 639 { 0x3701, 0x44 }, 640 { 0x3702, 0x18 }, 641 { 0x3703, 0x24 }, 642 { 0x3704, 0x24 }, 643 { 0x3705, 0x0c }, 644 { REG_TIMING_VERT_FORMAT, 0x81 }, 645 { REG_TIMING_HORIZ_FORMAT, 0x01 }, 646 { 0x370a, 0x52 }, 647 { REG_VFIFO_READ_START_H, 0x00 }, 648 { REG_VFIFO_READ_START_L, 0xa0 }, 649 { REG_ISP_CTRL02, 0x10 }, 650 { REG_NULL, 0x00 }, 651 }; 652 653 /* 320X240 QVGA */ 654 static struct sensor_register ov2659_qvga[] = { 655 { REG_TIMING_HS_H, 0x00 }, 656 { REG_TIMING_HS_L, 0x00 }, 657 { REG_TIMING_VS_H, 0x00 }, 658 { REG_TIMING_VS_L, 0x00 }, 659 { REG_TIMING_HW_H, 0x06 }, 660 { REG_TIMING_HW_L, 0x5f }, 661 { REG_TIMING_VH_H, 0x04 }, 662 { REG_TIMING_VH_L, 0xb7 }, 663 { REG_TIMING_DVPHO_H, 0x01 }, 664 { REG_TIMING_DVPHO_L, 0x40 }, 665 { REG_TIMING_DVPVO_H, 0x00 }, 666 { REG_TIMING_DVPVO_L, 0xf0 }, 667 { REG_TIMING_HTS_H, 0x05 }, 668 { REG_TIMING_HTS_L, 0x14 }, 669 { REG_TIMING_VTS_H, 0x02 }, 670 { REG_TIMING_VTS_L, 0x68 }, 671 { REG_TIMING_HOFFS_L, 0x08 }, 672 { REG_TIMING_VOFFS_L, 0x02 }, 673 { REG_TIMING_XINC, 0x31 }, 674 { REG_TIMING_YINC, 0x31 }, 675 { 0x3a02, 0x02 }, 676 { 0x3a03, 0x68 }, 677 { 0x3a08, 0x00 }, 678 { 0x3a09, 0x5c }, 679 { 0x3a0a, 0x00 }, 680 { 0x3a0b, 0x4d }, 681 { 0x3a0d, 0x08 }, 682 { 0x3a0e, 0x06 }, 683 { 0x3a14, 0x02 }, 684 { 0x3a15, 0x28 }, 685 { 0x3623, 0x00 }, 686 { 0x3634, 0x76 }, 687 { 0x3701, 0x44 }, 688 { 0x3702, 0x18 }, 689 { 0x3703, 0x24 }, 690 { 0x3704, 0x24 }, 691 { 0x3705, 0x0c }, 692 { REG_TIMING_VERT_FORMAT, 0x81 }, 693 { REG_TIMING_HORIZ_FORMAT, 0x01 }, 694 { 0x370a, 0x52 }, 695 { REG_VFIFO_READ_START_H, 0x00 }, 696 { REG_VFIFO_READ_START_L, 0xa0 }, 697 { REG_ISP_CTRL02, 0x10 }, 698 { REG_NULL, 0x00 }, 699 }; 700 701 static const struct pll_ctrl_reg ctrl3[] = { 702 { 1, 0x00 }, 703 { 2, 0x02 }, 704 { 3, 0x03 }, 705 { 4, 0x06 }, 706 { 6, 0x0d }, 707 { 8, 0x0e }, 708 { 12, 0x0f }, 709 { 16, 0x12 }, 710 { 24, 0x13 }, 711 { 32, 0x16 }, 712 { 48, 0x1b }, 713 { 64, 0x1e }, 714 { 96, 0x1f }, 715 { 0, 0x00 }, 716 }; 717 718 static const struct pll_ctrl_reg ctrl1[] = { 719 { 2, 0x10 }, 720 { 4, 0x20 }, 721 { 6, 0x30 }, 722 { 8, 0x40 }, 723 { 10, 0x50 }, 724 { 12, 0x60 }, 725 { 14, 0x70 }, 726 { 16, 0x80 }, 727 { 18, 0x90 }, 728 { 20, 0xa0 }, 729 { 22, 0xb0 }, 730 { 24, 0xc0 }, 731 { 26, 0xd0 }, 732 { 28, 0xe0 }, 733 { 30, 0xf0 }, 734 { 0, 0x00 }, 735 }; 736 737 static const struct ov2659_framesize ov2659_framesizes[] = { 738 { /* QVGA */ 739 .width = 320, 740 .height = 240, 741 .regs = ov2659_qvga, 742 .max_exp_lines = 248, 743 }, { /* VGA */ 744 .width = 640, 745 .height = 480, 746 .regs = ov2659_vga, 747 .max_exp_lines = 498, 748 }, { /* SVGA */ 749 .width = 800, 750 .height = 600, 751 .regs = ov2659_svga, 752 .max_exp_lines = 498, 753 }, { /* XGA */ 754 .width = 1024, 755 .height = 768, 756 .regs = ov2659_xga, 757 .max_exp_lines = 498, 758 }, { /* 720P */ 759 .width = 1280, 760 .height = 720, 761 .regs = ov2659_720p, 762 .max_exp_lines = 498, 763 }, { /* SXGA */ 764 .width = 1280, 765 .height = 1024, 766 .regs = ov2659_sxga, 767 .max_exp_lines = 1048, 768 }, { /* UXGA */ 769 .width = 1600, 770 .height = 1200, 771 .regs = ov2659_uxga, 772 .max_exp_lines = 498, 773 }, 774 }; 775 776 /* YUV422 YUYV*/ 777 static struct sensor_register ov2659_format_yuyv[] = { 778 { REG_FORMAT_CTRL00, 0x30 }, 779 { REG_NULL, 0x0 }, 780 }; 781 782 /* YUV422 UYVY */ 783 static struct sensor_register ov2659_format_uyvy[] = { 784 { REG_FORMAT_CTRL00, 0x32 }, 785 { REG_NULL, 0x0 }, 786 }; 787 788 /* Raw Bayer BGGR */ 789 static struct sensor_register ov2659_format_bggr[] = { 790 { REG_FORMAT_CTRL00, 0x00 }, 791 { REG_NULL, 0x0 }, 792 }; 793 794 /* RGB565 */ 795 static struct sensor_register ov2659_format_rgb565[] = { 796 { REG_FORMAT_CTRL00, 0x60 }, 797 { REG_NULL, 0x0 }, 798 }; 799 800 static const struct ov2659_pixfmt ov2659_formats[] = { 801 { 802 .code = MEDIA_BUS_FMT_YUYV8_2X8, 803 .format_ctrl_regs = ov2659_format_yuyv, 804 }, { 805 .code = MEDIA_BUS_FMT_UYVY8_2X8, 806 .format_ctrl_regs = ov2659_format_uyvy, 807 }, { 808 .code = MEDIA_BUS_FMT_RGB565_2X8_BE, 809 .format_ctrl_regs = ov2659_format_rgb565, 810 }, { 811 .code = MEDIA_BUS_FMT_SBGGR8_1X8, 812 .format_ctrl_regs = ov2659_format_bggr, 813 }, 814 }; 815 816 static inline struct ov2659 *to_ov2659(struct v4l2_subdev *sd) 817 { 818 return container_of(sd, struct ov2659, sd); 819 } 820 821 /* sensor register write */ 822 static int ov2659_write(struct i2c_client *client, u16 reg, u8 val) 823 { 824 struct i2c_msg msg; 825 u8 buf[3]; 826 int ret; 827 828 buf[0] = reg >> 8; 829 buf[1] = reg & 0xFF; 830 buf[2] = val; 831 832 msg.addr = client->addr; 833 msg.flags = client->flags; 834 msg.buf = buf; 835 msg.len = sizeof(buf); 836 837 ret = i2c_transfer(client->adapter, &msg, 1); 838 if (ret >= 0) 839 return 0; 840 841 dev_dbg(&client->dev, 842 "ov2659 write reg(0x%x val:0x%x) failed !\n", reg, val); 843 844 return ret; 845 } 846 847 /* sensor register read */ 848 static int ov2659_read(struct i2c_client *client, u16 reg, u8 *val) 849 { 850 struct i2c_msg msg[2]; 851 u8 buf[2]; 852 int ret; 853 854 buf[0] = reg >> 8; 855 buf[1] = reg & 0xFF; 856 857 msg[0].addr = client->addr; 858 msg[0].flags = client->flags; 859 msg[0].buf = buf; 860 msg[0].len = sizeof(buf); 861 862 msg[1].addr = client->addr; 863 msg[1].flags = client->flags | I2C_M_RD; 864 msg[1].buf = buf; 865 msg[1].len = 1; 866 867 ret = i2c_transfer(client->adapter, msg, 2); 868 if (ret >= 0) { 869 *val = buf[0]; 870 return 0; 871 } 872 873 dev_dbg(&client->dev, 874 "ov2659 read reg(0x%x val:0x%x) failed !\n", reg, *val); 875 876 return ret; 877 } 878 879 static int ov2659_write_array(struct i2c_client *client, 880 const struct sensor_register *regs) 881 { 882 int i, ret = 0; 883 884 for (i = 0; ret == 0 && regs[i].addr; i++) 885 ret = ov2659_write(client, regs[i].addr, regs[i].value); 886 887 return ret; 888 } 889 890 static void ov2659_pll_calc_params(struct ov2659 *ov2659) 891 { 892 const struct ov2659_platform_data *pdata = ov2659->pdata; 893 u8 ctrl1_reg = 0, ctrl2_reg = 0, ctrl3_reg = 0; 894 struct i2c_client *client = ov2659->client; 895 unsigned int desired = pdata->link_frequency; 896 u32 prediv, postdiv, mult; 897 u32 bestdelta = -1; 898 u32 delta, actual; 899 int i, j; 900 901 for (i = 0; ctrl1[i].div != 0; i++) { 902 postdiv = ctrl1[i].div; 903 for (j = 0; ctrl3[j].div != 0; j++) { 904 prediv = ctrl3[j].div; 905 for (mult = 1; mult <= 63; mult++) { 906 actual = ov2659->xvclk_frequency; 907 actual *= mult; 908 actual /= prediv; 909 actual /= postdiv; 910 delta = actual - desired; 911 delta = abs(delta); 912 913 if ((delta < bestdelta) || (bestdelta == -1)) { 914 bestdelta = delta; 915 ctrl1_reg = ctrl1[i].reg; 916 ctrl2_reg = mult; 917 ctrl3_reg = ctrl3[j].reg; 918 } 919 } 920 } 921 } 922 923 ov2659->pll.ctrl1 = ctrl1_reg; 924 ov2659->pll.ctrl2 = ctrl2_reg; 925 ov2659->pll.ctrl3 = ctrl3_reg; 926 927 dev_dbg(&client->dev, 928 "Actual reg config: ctrl1_reg: %02x ctrl2_reg: %02x ctrl3_reg: %02x\n", 929 ctrl1_reg, ctrl2_reg, ctrl3_reg); 930 } 931 932 static int ov2659_set_pixel_clock(struct ov2659 *ov2659) 933 { 934 struct i2c_client *client = ov2659->client; 935 struct sensor_register pll_regs[] = { 936 {REG_SC_PLL_CTRL1, ov2659->pll.ctrl1}, 937 {REG_SC_PLL_CTRL2, ov2659->pll.ctrl2}, 938 {REG_SC_PLL_CTRL3, ov2659->pll.ctrl3}, 939 {REG_NULL, 0x00}, 940 }; 941 942 dev_dbg(&client->dev, "%s\n", __func__); 943 944 return ov2659_write_array(client, pll_regs); 945 }; 946 947 static void ov2659_get_default_format(struct v4l2_mbus_framefmt *format) 948 { 949 format->width = ov2659_framesizes[2].width; 950 format->height = ov2659_framesizes[2].height; 951 format->colorspace = V4L2_COLORSPACE_SRGB; 952 format->code = ov2659_formats[0].code; 953 format->field = V4L2_FIELD_NONE; 954 } 955 956 static void ov2659_set_streaming(struct ov2659 *ov2659, int on) 957 { 958 struct i2c_client *client = ov2659->client; 959 int ret; 960 961 on = !!on; 962 963 dev_dbg(&client->dev, "%s: on: %d\n", __func__, on); 964 965 ret = ov2659_write(client, REG_SOFTWARE_STANDBY, on); 966 if (ret) 967 dev_err(&client->dev, "ov2659 soft standby failed\n"); 968 } 969 970 static int ov2659_init(struct v4l2_subdev *sd, u32 val) 971 { 972 struct i2c_client *client = v4l2_get_subdevdata(sd); 973 974 return ov2659_write_array(client, ov2659_init_regs); 975 } 976 977 /* 978 * V4L2 subdev video and pad level operations 979 */ 980 981 static int ov2659_enum_mbus_code(struct v4l2_subdev *sd, 982 struct v4l2_subdev_pad_config *cfg, 983 struct v4l2_subdev_mbus_code_enum *code) 984 { 985 struct i2c_client *client = v4l2_get_subdevdata(sd); 986 987 dev_dbg(&client->dev, "%s:\n", __func__); 988 989 if (code->index >= ARRAY_SIZE(ov2659_formats)) 990 return -EINVAL; 991 992 code->code = ov2659_formats[code->index].code; 993 994 return 0; 995 } 996 997 static int ov2659_enum_frame_sizes(struct v4l2_subdev *sd, 998 struct v4l2_subdev_pad_config *cfg, 999 struct v4l2_subdev_frame_size_enum *fse) 1000 { 1001 struct i2c_client *client = v4l2_get_subdevdata(sd); 1002 int i = ARRAY_SIZE(ov2659_formats); 1003 1004 dev_dbg(&client->dev, "%s:\n", __func__); 1005 1006 if (fse->index >= ARRAY_SIZE(ov2659_framesizes)) 1007 return -EINVAL; 1008 1009 while (--i) 1010 if (fse->code == ov2659_formats[i].code) 1011 break; 1012 1013 fse->code = ov2659_formats[i].code; 1014 1015 fse->min_width = ov2659_framesizes[fse->index].width; 1016 fse->max_width = fse->min_width; 1017 fse->max_height = ov2659_framesizes[fse->index].height; 1018 fse->min_height = fse->max_height; 1019 1020 return 0; 1021 } 1022 1023 static int ov2659_get_fmt(struct v4l2_subdev *sd, 1024 struct v4l2_subdev_pad_config *cfg, 1025 struct v4l2_subdev_format *fmt) 1026 { 1027 struct i2c_client *client = v4l2_get_subdevdata(sd); 1028 struct ov2659 *ov2659 = to_ov2659(sd); 1029 1030 dev_dbg(&client->dev, "ov2659_get_fmt\n"); 1031 1032 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { 1033 #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API 1034 struct v4l2_mbus_framefmt *mf; 1035 1036 mf = v4l2_subdev_get_try_format(sd, cfg, 0); 1037 mutex_lock(&ov2659->lock); 1038 fmt->format = *mf; 1039 mutex_unlock(&ov2659->lock); 1040 return 0; 1041 #else 1042 return -EINVAL; 1043 #endif 1044 } 1045 1046 mutex_lock(&ov2659->lock); 1047 fmt->format = ov2659->format; 1048 mutex_unlock(&ov2659->lock); 1049 1050 dev_dbg(&client->dev, "ov2659_get_fmt: %x %dx%d\n", 1051 ov2659->format.code, ov2659->format.width, 1052 ov2659->format.height); 1053 1054 return 0; 1055 } 1056 1057 static void __ov2659_try_frame_size(struct v4l2_mbus_framefmt *mf, 1058 const struct ov2659_framesize **size) 1059 { 1060 const struct ov2659_framesize *fsize = &ov2659_framesizes[0]; 1061 const struct ov2659_framesize *match = NULL; 1062 int i = ARRAY_SIZE(ov2659_framesizes); 1063 unsigned int min_err = UINT_MAX; 1064 1065 while (i--) { 1066 int err = abs(fsize->width - mf->width) 1067 + abs(fsize->height - mf->height); 1068 if ((err < min_err) && (fsize->regs[0].addr)) { 1069 min_err = err; 1070 match = fsize; 1071 } 1072 fsize++; 1073 } 1074 1075 if (!match) 1076 match = &ov2659_framesizes[2]; 1077 1078 mf->width = match->width; 1079 mf->height = match->height; 1080 1081 if (size) 1082 *size = match; 1083 } 1084 1085 static int ov2659_set_fmt(struct v4l2_subdev *sd, 1086 struct v4l2_subdev_pad_config *cfg, 1087 struct v4l2_subdev_format *fmt) 1088 { 1089 struct i2c_client *client = v4l2_get_subdevdata(sd); 1090 int index = ARRAY_SIZE(ov2659_formats); 1091 struct v4l2_mbus_framefmt *mf = &fmt->format; 1092 const struct ov2659_framesize *size = NULL; 1093 struct ov2659 *ov2659 = to_ov2659(sd); 1094 int ret = 0; 1095 1096 dev_dbg(&client->dev, "ov2659_set_fmt\n"); 1097 1098 __ov2659_try_frame_size(mf, &size); 1099 1100 while (--index >= 0) 1101 if (ov2659_formats[index].code == mf->code) 1102 break; 1103 1104 if (index < 0) { 1105 index = 0; 1106 mf->code = ov2659_formats[index].code; 1107 } 1108 1109 mf->colorspace = V4L2_COLORSPACE_SRGB; 1110 mf->field = V4L2_FIELD_NONE; 1111 1112 mutex_lock(&ov2659->lock); 1113 1114 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { 1115 #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API 1116 mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad); 1117 *mf = fmt->format; 1118 #endif 1119 } else { 1120 s64 val; 1121 1122 if (ov2659->streaming) { 1123 mutex_unlock(&ov2659->lock); 1124 return -EBUSY; 1125 } 1126 1127 ov2659->frame_size = size; 1128 ov2659->format = fmt->format; 1129 ov2659->format_ctrl_regs = 1130 ov2659_formats[index].format_ctrl_regs; 1131 1132 if (ov2659->format.code != MEDIA_BUS_FMT_SBGGR8_1X8) 1133 val = ov2659->pdata->link_frequency / 2; 1134 else 1135 val = ov2659->pdata->link_frequency; 1136 1137 ret = v4l2_ctrl_s_ctrl_int64(ov2659->link_frequency, val); 1138 if (ret < 0) 1139 dev_warn(&client->dev, 1140 "failed to set link_frequency rate (%d)\n", 1141 ret); 1142 } 1143 1144 mutex_unlock(&ov2659->lock); 1145 return ret; 1146 } 1147 1148 static int ov2659_set_frame_size(struct ov2659 *ov2659) 1149 { 1150 struct i2c_client *client = ov2659->client; 1151 1152 dev_dbg(&client->dev, "%s\n", __func__); 1153 1154 return ov2659_write_array(ov2659->client, ov2659->frame_size->regs); 1155 } 1156 1157 static int ov2659_set_format(struct ov2659 *ov2659) 1158 { 1159 struct i2c_client *client = ov2659->client; 1160 1161 dev_dbg(&client->dev, "%s\n", __func__); 1162 1163 return ov2659_write_array(ov2659->client, ov2659->format_ctrl_regs); 1164 } 1165 1166 static int ov2659_s_stream(struct v4l2_subdev *sd, int on) 1167 { 1168 struct i2c_client *client = v4l2_get_subdevdata(sd); 1169 struct ov2659 *ov2659 = to_ov2659(sd); 1170 int ret = 0; 1171 1172 dev_dbg(&client->dev, "%s: on: %d\n", __func__, on); 1173 1174 mutex_lock(&ov2659->lock); 1175 1176 on = !!on; 1177 1178 if (ov2659->streaming == on) 1179 goto unlock; 1180 1181 if (!on) { 1182 /* Stop Streaming Sequence */ 1183 ov2659_set_streaming(ov2659, 0); 1184 ov2659->streaming = on; 1185 pm_runtime_put(&client->dev); 1186 goto unlock; 1187 } 1188 1189 ret = pm_runtime_get_sync(&client->dev); 1190 if (ret < 0) { 1191 pm_runtime_put_noidle(&client->dev); 1192 goto unlock; 1193 } 1194 1195 ret = ov2659_init(sd, 0); 1196 if (!ret) 1197 ret = ov2659_set_pixel_clock(ov2659); 1198 if (!ret) 1199 ret = ov2659_set_frame_size(ov2659); 1200 if (!ret) 1201 ret = ov2659_set_format(ov2659); 1202 if (!ret) { 1203 ov2659_set_streaming(ov2659, 1); 1204 ov2659->streaming = on; 1205 } 1206 1207 unlock: 1208 mutex_unlock(&ov2659->lock); 1209 return ret; 1210 } 1211 1212 static int ov2659_set_test_pattern(struct ov2659 *ov2659, int value) 1213 { 1214 struct i2c_client *client = v4l2_get_subdevdata(&ov2659->sd); 1215 int ret; 1216 u8 val; 1217 1218 ret = ov2659_read(client, REG_PRE_ISP_CTRL00, &val); 1219 if (ret < 0) 1220 return ret; 1221 1222 switch (value) { 1223 case 0: 1224 val &= ~TEST_PATTERN_ENABLE; 1225 break; 1226 case 1: 1227 val &= VERTICAL_COLOR_BAR_MASK; 1228 val |= TEST_PATTERN_ENABLE; 1229 break; 1230 } 1231 1232 return ov2659_write(client, REG_PRE_ISP_CTRL00, val); 1233 } 1234 1235 static int ov2659_s_ctrl(struct v4l2_ctrl *ctrl) 1236 { 1237 struct ov2659 *ov2659 = 1238 container_of(ctrl->handler, struct ov2659, ctrls); 1239 struct i2c_client *client = ov2659->client; 1240 1241 /* V4L2 controls values will be applied only when power is already up */ 1242 if (!pm_runtime_get_if_in_use(&client->dev)) 1243 return 0; 1244 1245 switch (ctrl->id) { 1246 case V4L2_CID_TEST_PATTERN: 1247 return ov2659_set_test_pattern(ov2659, ctrl->val); 1248 } 1249 1250 pm_runtime_put(&client->dev); 1251 return 0; 1252 } 1253 1254 static const struct v4l2_ctrl_ops ov2659_ctrl_ops = { 1255 .s_ctrl = ov2659_s_ctrl, 1256 }; 1257 1258 static const char * const ov2659_test_pattern_menu[] = { 1259 "Disabled", 1260 "Vertical Color Bars", 1261 }; 1262 1263 static int ov2659_power_off(struct device *dev) 1264 { 1265 struct i2c_client *client = to_i2c_client(dev); 1266 struct v4l2_subdev *sd = i2c_get_clientdata(client); 1267 struct ov2659 *ov2659 = to_ov2659(sd); 1268 1269 dev_dbg(&client->dev, "%s:\n", __func__); 1270 1271 gpiod_set_value(ov2659->pwdn_gpio, 1); 1272 1273 return 0; 1274 } 1275 1276 static int ov2659_power_on(struct device *dev) 1277 { 1278 struct i2c_client *client = to_i2c_client(dev); 1279 struct v4l2_subdev *sd = i2c_get_clientdata(client); 1280 struct ov2659 *ov2659 = to_ov2659(sd); 1281 1282 dev_dbg(&client->dev, "%s:\n", __func__); 1283 1284 gpiod_set_value(ov2659->pwdn_gpio, 0); 1285 1286 if (ov2659->resetb_gpio) { 1287 gpiod_set_value(ov2659->resetb_gpio, 1); 1288 usleep_range(500, 1000); 1289 gpiod_set_value(ov2659->resetb_gpio, 0); 1290 usleep_range(3000, 5000); 1291 } 1292 1293 return 0; 1294 } 1295 1296 /* ----------------------------------------------------------------------------- 1297 * V4L2 subdev internal operations 1298 */ 1299 1300 #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API 1301 static int ov2659_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) 1302 { 1303 struct i2c_client *client = v4l2_get_subdevdata(sd); 1304 struct v4l2_mbus_framefmt *format = 1305 v4l2_subdev_get_try_format(sd, fh->pad, 0); 1306 1307 dev_dbg(&client->dev, "%s:\n", __func__); 1308 1309 ov2659_get_default_format(format); 1310 1311 return 0; 1312 } 1313 #endif 1314 1315 static const struct v4l2_subdev_core_ops ov2659_subdev_core_ops = { 1316 .log_status = v4l2_ctrl_subdev_log_status, 1317 .subscribe_event = v4l2_ctrl_subdev_subscribe_event, 1318 .unsubscribe_event = v4l2_event_subdev_unsubscribe, 1319 }; 1320 1321 static const struct v4l2_subdev_video_ops ov2659_subdev_video_ops = { 1322 .s_stream = ov2659_s_stream, 1323 }; 1324 1325 static const struct v4l2_subdev_pad_ops ov2659_subdev_pad_ops = { 1326 .enum_mbus_code = ov2659_enum_mbus_code, 1327 .enum_frame_size = ov2659_enum_frame_sizes, 1328 .get_fmt = ov2659_get_fmt, 1329 .set_fmt = ov2659_set_fmt, 1330 }; 1331 1332 #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API 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 #endif 1343 1344 static int ov2659_detect(struct v4l2_subdev *sd) 1345 { 1346 struct i2c_client *client = v4l2_get_subdevdata(sd); 1347 u8 pid = 0; 1348 u8 ver = 0; 1349 int ret; 1350 1351 dev_dbg(&client->dev, "%s:\n", __func__); 1352 1353 ret = ov2659_write(client, REG_SOFTWARE_RESET, 0x01); 1354 if (ret != 0) { 1355 dev_err(&client->dev, "Sensor soft reset failed\n"); 1356 return -ENODEV; 1357 } 1358 usleep_range(1000, 2000); 1359 1360 /* Check sensor revision */ 1361 ret = ov2659_read(client, REG_SC_CHIP_ID_H, &pid); 1362 if (!ret) 1363 ret = ov2659_read(client, REG_SC_CHIP_ID_L, &ver); 1364 1365 if (!ret) { 1366 unsigned short id; 1367 1368 id = OV265X_ID(pid, ver); 1369 if (id != OV2659_ID) { 1370 dev_err(&client->dev, 1371 "Sensor detection failed (%04X, %d)\n", 1372 id, ret); 1373 ret = -ENODEV; 1374 } else { 1375 dev_info(&client->dev, "Found OV%04X sensor\n", id); 1376 } 1377 } 1378 1379 return ret; 1380 } 1381 1382 static struct ov2659_platform_data * 1383 ov2659_get_pdata(struct i2c_client *client) 1384 { 1385 struct ov2659_platform_data *pdata; 1386 struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 }; 1387 struct device_node *endpoint; 1388 int ret; 1389 1390 if (!IS_ENABLED(CONFIG_OF) || !client->dev.of_node) 1391 return client->dev.platform_data; 1392 1393 endpoint = of_graph_get_next_endpoint(client->dev.of_node, NULL); 1394 if (!endpoint) 1395 return NULL; 1396 1397 ret = v4l2_fwnode_endpoint_alloc_parse(of_fwnode_handle(endpoint), 1398 &bus_cfg); 1399 if (ret) { 1400 pdata = NULL; 1401 goto done; 1402 } 1403 1404 pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL); 1405 if (!pdata) 1406 goto done; 1407 1408 if (!bus_cfg.nr_of_link_frequencies) { 1409 dev_err(&client->dev, 1410 "link-frequencies property not found or too many\n"); 1411 pdata = NULL; 1412 goto done; 1413 } 1414 1415 pdata->link_frequency = bus_cfg.link_frequencies[0]; 1416 1417 done: 1418 v4l2_fwnode_endpoint_free(&bus_cfg); 1419 of_node_put(endpoint); 1420 return pdata; 1421 } 1422 1423 static int ov2659_probe(struct i2c_client *client) 1424 { 1425 const struct ov2659_platform_data *pdata = ov2659_get_pdata(client); 1426 struct v4l2_subdev *sd; 1427 struct ov2659 *ov2659; 1428 struct clk *clk; 1429 int ret; 1430 1431 if (!pdata) { 1432 dev_err(&client->dev, "platform data not specified\n"); 1433 return -EINVAL; 1434 } 1435 1436 ov2659 = devm_kzalloc(&client->dev, sizeof(*ov2659), GFP_KERNEL); 1437 if (!ov2659) 1438 return -ENOMEM; 1439 1440 ov2659->pdata = pdata; 1441 ov2659->client = client; 1442 1443 clk = devm_clk_get(&client->dev, "xvclk"); 1444 if (IS_ERR(clk)) 1445 return PTR_ERR(clk); 1446 1447 ov2659->xvclk_frequency = clk_get_rate(clk); 1448 if (ov2659->xvclk_frequency < 6000000 || 1449 ov2659->xvclk_frequency > 27000000) 1450 return -EINVAL; 1451 1452 /* Optional gpio don't fail if not present */ 1453 ov2659->pwdn_gpio = devm_gpiod_get_optional(&client->dev, "powerdown", 1454 GPIOD_OUT_LOW); 1455 if (IS_ERR(ov2659->pwdn_gpio)) 1456 return PTR_ERR(ov2659->pwdn_gpio); 1457 1458 /* Optional gpio don't fail if not present */ 1459 ov2659->resetb_gpio = devm_gpiod_get_optional(&client->dev, "reset", 1460 GPIOD_OUT_HIGH); 1461 if (IS_ERR(ov2659->resetb_gpio)) 1462 return PTR_ERR(ov2659->resetb_gpio); 1463 1464 v4l2_ctrl_handler_init(&ov2659->ctrls, 2); 1465 ov2659->link_frequency = 1466 v4l2_ctrl_new_std(&ov2659->ctrls, &ov2659_ctrl_ops, 1467 V4L2_CID_PIXEL_RATE, 1468 pdata->link_frequency / 2, 1469 pdata->link_frequency, 1, 1470 pdata->link_frequency); 1471 v4l2_ctrl_new_std_menu_items(&ov2659->ctrls, &ov2659_ctrl_ops, 1472 V4L2_CID_TEST_PATTERN, 1473 ARRAY_SIZE(ov2659_test_pattern_menu) - 1, 1474 0, 0, ov2659_test_pattern_menu); 1475 ov2659->sd.ctrl_handler = &ov2659->ctrls; 1476 1477 if (ov2659->ctrls.error) { 1478 dev_err(&client->dev, "%s: control initialization error %d\n", 1479 __func__, ov2659->ctrls.error); 1480 return ov2659->ctrls.error; 1481 } 1482 1483 sd = &ov2659->sd; 1484 client->flags |= I2C_CLIENT_SCCB; 1485 #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API 1486 v4l2_i2c_subdev_init(sd, client, &ov2659_subdev_ops); 1487 1488 sd->internal_ops = &ov2659_subdev_internal_ops; 1489 sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | 1490 V4L2_SUBDEV_FL_HAS_EVENTS; 1491 #endif 1492 1493 #if defined(CONFIG_MEDIA_CONTROLLER) 1494 ov2659->pad.flags = MEDIA_PAD_FL_SOURCE; 1495 sd->entity.function = MEDIA_ENT_F_CAM_SENSOR; 1496 ret = media_entity_pads_init(&sd->entity, 1, &ov2659->pad); 1497 if (ret < 0) { 1498 v4l2_ctrl_handler_free(&ov2659->ctrls); 1499 return ret; 1500 } 1501 #endif 1502 1503 mutex_init(&ov2659->lock); 1504 1505 ov2659_get_default_format(&ov2659->format); 1506 ov2659->frame_size = &ov2659_framesizes[2]; 1507 ov2659->format_ctrl_regs = ov2659_formats[0].format_ctrl_regs; 1508 1509 ov2659_power_on(&client->dev); 1510 1511 ret = ov2659_detect(sd); 1512 if (ret < 0) 1513 goto error; 1514 1515 /* Calculate the PLL register value needed */ 1516 ov2659_pll_calc_params(ov2659); 1517 1518 ret = v4l2_async_register_subdev(&ov2659->sd); 1519 if (ret) 1520 goto error; 1521 1522 dev_info(&client->dev, "%s sensor driver registered !!\n", sd->name); 1523 1524 pm_runtime_set_active(&client->dev); 1525 pm_runtime_enable(&client->dev); 1526 pm_runtime_idle(&client->dev); 1527 1528 return 0; 1529 1530 error: 1531 v4l2_ctrl_handler_free(&ov2659->ctrls); 1532 ov2659_power_off(&client->dev); 1533 media_entity_cleanup(&sd->entity); 1534 mutex_destroy(&ov2659->lock); 1535 return ret; 1536 } 1537 1538 static int ov2659_remove(struct i2c_client *client) 1539 { 1540 struct v4l2_subdev *sd = i2c_get_clientdata(client); 1541 struct ov2659 *ov2659 = to_ov2659(sd); 1542 1543 v4l2_ctrl_handler_free(&ov2659->ctrls); 1544 v4l2_async_unregister_subdev(sd); 1545 media_entity_cleanup(&sd->entity); 1546 mutex_destroy(&ov2659->lock); 1547 1548 pm_runtime_disable(&client->dev); 1549 if (!pm_runtime_status_suspended(&client->dev)) 1550 ov2659_power_off(&client->dev); 1551 pm_runtime_set_suspended(&client->dev); 1552 1553 return 0; 1554 } 1555 1556 static const struct dev_pm_ops ov2659_pm_ops = { 1557 SET_RUNTIME_PM_OPS(ov2659_power_off, ov2659_power_on, NULL) 1558 }; 1559 1560 static const struct i2c_device_id ov2659_id[] = { 1561 { "ov2659", 0 }, 1562 { /* sentinel */ }, 1563 }; 1564 MODULE_DEVICE_TABLE(i2c, ov2659_id); 1565 1566 #if IS_ENABLED(CONFIG_OF) 1567 static const struct of_device_id ov2659_of_match[] = { 1568 { .compatible = "ovti,ov2659", }, 1569 { /* sentinel */ }, 1570 }; 1571 MODULE_DEVICE_TABLE(of, ov2659_of_match); 1572 #endif 1573 1574 static struct i2c_driver ov2659_i2c_driver = { 1575 .driver = { 1576 .name = DRIVER_NAME, 1577 .pm = &ov2659_pm_ops, 1578 .of_match_table = of_match_ptr(ov2659_of_match), 1579 }, 1580 .probe_new = ov2659_probe, 1581 .remove = ov2659_remove, 1582 .id_table = ov2659_id, 1583 }; 1584 1585 module_i2c_driver(ov2659_i2c_driver); 1586 1587 MODULE_AUTHOR("Benoit Parrot <bparrot@ti.com>"); 1588 MODULE_DESCRIPTION("OV2659 CMOS Image Sensor driver"); 1589 MODULE_LICENSE("GPL v2"); 1590