linux/drivers/media/i2c/ov13858.c
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   1// SPDX-License-Identifier: GPL-2.0
   2// Copyright (c) 2017 Intel Corporation.
   3
   4#include <linux/acpi.h>
   5#include <linux/i2c.h>
   6#include <linux/module.h>
   7#include <linux/pm_runtime.h>
   8#include <media/v4l2-ctrls.h>
   9#include <media/v4l2-device.h>
  10
  11#define OV13858_REG_VALUE_08BIT         1
  12#define OV13858_REG_VALUE_16BIT         2
  13#define OV13858_REG_VALUE_24BIT         3
  14
  15#define OV13858_REG_MODE_SELECT         0x0100
  16#define OV13858_MODE_STANDBY            0x00
  17#define OV13858_MODE_STREAMING          0x01
  18
  19#define OV13858_REG_SOFTWARE_RST        0x0103
  20#define OV13858_SOFTWARE_RST            0x01
  21
  22/* PLL1 generates PCLK and MIPI_PHY_CLK */
  23#define OV13858_REG_PLL1_CTRL_0         0x0300
  24#define OV13858_REG_PLL1_CTRL_1         0x0301
  25#define OV13858_REG_PLL1_CTRL_2         0x0302
  26#define OV13858_REG_PLL1_CTRL_3         0x0303
  27#define OV13858_REG_PLL1_CTRL_4         0x0304
  28#define OV13858_REG_PLL1_CTRL_5         0x0305
  29
  30/* PLL2 generates DAC_CLK, SCLK and SRAM_CLK */
  31#define OV13858_REG_PLL2_CTRL_B         0x030b
  32#define OV13858_REG_PLL2_CTRL_C         0x030c
  33#define OV13858_REG_PLL2_CTRL_D         0x030d
  34#define OV13858_REG_PLL2_CTRL_E         0x030e
  35#define OV13858_REG_PLL2_CTRL_F         0x030f
  36#define OV13858_REG_PLL2_CTRL_12        0x0312
  37#define OV13858_REG_MIPI_SC_CTRL0       0x3016
  38#define OV13858_REG_MIPI_SC_CTRL1       0x3022
  39
  40/* Chip ID */
  41#define OV13858_REG_CHIP_ID             0x300a
  42#define OV13858_CHIP_ID                 0x00d855
  43
  44/* V_TIMING internal */
  45#define OV13858_REG_VTS                 0x380e
  46#define OV13858_VTS_30FPS               0x0c8e /* 30 fps */
  47#define OV13858_VTS_60FPS               0x0648 /* 60 fps */
  48#define OV13858_VTS_MAX                 0x7fff
  49
  50/* HBLANK control - read only */
  51#define OV13858_PPL_270MHZ              2244
  52#define OV13858_PPL_540MHZ              4488
  53
  54/* Exposure control */
  55#define OV13858_REG_EXPOSURE            0x3500
  56#define OV13858_EXPOSURE_MIN            4
  57#define OV13858_EXPOSURE_STEP           1
  58#define OV13858_EXPOSURE_DEFAULT        0x640
  59
  60/* Analog gain control */
  61#define OV13858_REG_ANALOG_GAIN         0x3508
  62#define OV13858_ANA_GAIN_MIN            0
  63#define OV13858_ANA_GAIN_MAX            0x1fff
  64#define OV13858_ANA_GAIN_STEP           1
  65#define OV13858_ANA_GAIN_DEFAULT        0x80
  66
  67/* Digital gain control */
  68#define OV13858_REG_B_MWB_GAIN          0x5100
  69#define OV13858_REG_G_MWB_GAIN          0x5102
  70#define OV13858_REG_R_MWB_GAIN          0x5104
  71#define OV13858_DGTL_GAIN_MIN           0
  72#define OV13858_DGTL_GAIN_MAX           16384   /* Max = 16 X */
  73#define OV13858_DGTL_GAIN_DEFAULT       1024    /* Default gain = 1 X */
  74#define OV13858_DGTL_GAIN_STEP          1       /* Each step = 1/1024 */
  75
  76/* Test Pattern Control */
  77#define OV13858_REG_TEST_PATTERN        0x4503
  78#define OV13858_TEST_PATTERN_ENABLE     BIT(7)
  79#define OV13858_TEST_PATTERN_MASK       0xfc
  80
  81/* Number of frames to skip */
  82#define OV13858_NUM_OF_SKIP_FRAMES      2
  83
  84struct ov13858_reg {
  85        u16 address;
  86        u8 val;
  87};
  88
  89struct ov13858_reg_list {
  90        u32 num_of_regs;
  91        const struct ov13858_reg *regs;
  92};
  93
  94/* Link frequency config */
  95struct ov13858_link_freq_config {
  96        u32 pixels_per_line;
  97
  98        /* PLL registers for this link frequency */
  99        struct ov13858_reg_list reg_list;
 100};
 101
 102/* Mode : resolution and related config&values */
 103struct ov13858_mode {
 104        /* Frame width */
 105        u32 width;
 106        /* Frame height */
 107        u32 height;
 108
 109        /* V-timing */
 110        u32 vts_def;
 111        u32 vts_min;
 112
 113        /* Index of Link frequency config to be used */
 114        u32 link_freq_index;
 115        /* Default register values */
 116        struct ov13858_reg_list reg_list;
 117};
 118
 119/* 4224x3136 needs 1080Mbps/lane, 4 lanes */
 120static const struct ov13858_reg mipi_data_rate_1080mbps[] = {
 121        /* PLL1 registers */
 122        {OV13858_REG_PLL1_CTRL_0, 0x07},
 123        {OV13858_REG_PLL1_CTRL_1, 0x01},
 124        {OV13858_REG_PLL1_CTRL_2, 0xc2},
 125        {OV13858_REG_PLL1_CTRL_3, 0x00},
 126        {OV13858_REG_PLL1_CTRL_4, 0x00},
 127        {OV13858_REG_PLL1_CTRL_5, 0x01},
 128
 129        /* PLL2 registers */
 130        {OV13858_REG_PLL2_CTRL_B, 0x05},
 131        {OV13858_REG_PLL2_CTRL_C, 0x01},
 132        {OV13858_REG_PLL2_CTRL_D, 0x0e},
 133        {OV13858_REG_PLL2_CTRL_E, 0x05},
 134        {OV13858_REG_PLL2_CTRL_F, 0x01},
 135        {OV13858_REG_PLL2_CTRL_12, 0x01},
 136        {OV13858_REG_MIPI_SC_CTRL0, 0x72},
 137        {OV13858_REG_MIPI_SC_CTRL1, 0x01},
 138};
 139
 140/*
 141 * 2112x1568, 2112x1188, 1056x784 need 540Mbps/lane,
 142 * 4 lanes
 143 */
 144static const struct ov13858_reg mipi_data_rate_540mbps[] = {
 145        /* PLL1 registers */
 146        {OV13858_REG_PLL1_CTRL_0, 0x07},
 147        {OV13858_REG_PLL1_CTRL_1, 0x01},
 148        {OV13858_REG_PLL1_CTRL_2, 0xc2},
 149        {OV13858_REG_PLL1_CTRL_3, 0x01},
 150        {OV13858_REG_PLL1_CTRL_4, 0x00},
 151        {OV13858_REG_PLL1_CTRL_5, 0x01},
 152
 153        /* PLL2 registers */
 154        {OV13858_REG_PLL2_CTRL_B, 0x05},
 155        {OV13858_REG_PLL2_CTRL_C, 0x01},
 156        {OV13858_REG_PLL2_CTRL_D, 0x0e},
 157        {OV13858_REG_PLL2_CTRL_E, 0x05},
 158        {OV13858_REG_PLL2_CTRL_F, 0x01},
 159        {OV13858_REG_PLL2_CTRL_12, 0x01},
 160        {OV13858_REG_MIPI_SC_CTRL0, 0x72},
 161        {OV13858_REG_MIPI_SC_CTRL1, 0x01},
 162};
 163
 164static const struct ov13858_reg mode_4224x3136_regs[] = {
 165        {0x3013, 0x32},
 166        {0x301b, 0xf0},
 167        {0x301f, 0xd0},
 168        {0x3106, 0x15},
 169        {0x3107, 0x23},
 170        {0x350a, 0x00},
 171        {0x350e, 0x00},
 172        {0x3510, 0x00},
 173        {0x3511, 0x02},
 174        {0x3512, 0x00},
 175        {0x3600, 0x2b},
 176        {0x3601, 0x52},
 177        {0x3602, 0x60},
 178        {0x3612, 0x05},
 179        {0x3613, 0xa4},
 180        {0x3620, 0x80},
 181        {0x3621, 0x10},
 182        {0x3622, 0x30},
 183        {0x3624, 0x1c},
 184        {0x3640, 0x10},
 185        {0x3641, 0x70},
 186        {0x3660, 0x04},
 187        {0x3661, 0x80},
 188        {0x3662, 0x12},
 189        {0x3664, 0x73},
 190        {0x3665, 0xa7},
 191        {0x366e, 0xff},
 192        {0x366f, 0xf4},
 193        {0x3674, 0x00},
 194        {0x3679, 0x0c},
 195        {0x367f, 0x01},
 196        {0x3680, 0x0c},
 197        {0x3681, 0x50},
 198        {0x3682, 0x50},
 199        {0x3683, 0xa9},
 200        {0x3684, 0xa9},
 201        {0x3709, 0x5f},
 202        {0x3714, 0x24},
 203        {0x371a, 0x3e},
 204        {0x3737, 0x04},
 205        {0x3738, 0xcc},
 206        {0x3739, 0x12},
 207        {0x373d, 0x26},
 208        {0x3764, 0x20},
 209        {0x3765, 0x20},
 210        {0x37a1, 0x36},
 211        {0x37a8, 0x3b},
 212        {0x37ab, 0x31},
 213        {0x37c2, 0x04},
 214        {0x37c3, 0xf1},
 215        {0x37c5, 0x00},
 216        {0x37d8, 0x03},
 217        {0x37d9, 0x0c},
 218        {0x37da, 0xc2},
 219        {0x37dc, 0x02},
 220        {0x37e0, 0x00},
 221        {0x37e1, 0x0a},
 222        {0x37e2, 0x14},
 223        {0x37e3, 0x04},
 224        {0x37e4, 0x2a},
 225        {0x37e5, 0x03},
 226        {0x37e6, 0x04},
 227        {0x3800, 0x00},
 228        {0x3801, 0x00},
 229        {0x3802, 0x00},
 230        {0x3803, 0x08},
 231        {0x3804, 0x10},
 232        {0x3805, 0x9f},
 233        {0x3806, 0x0c},
 234        {0x3807, 0x57},
 235        {0x3808, 0x10},
 236        {0x3809, 0x80},
 237        {0x380a, 0x0c},
 238        {0x380b, 0x40},
 239        {0x380c, 0x04},
 240        {0x380d, 0x62},
 241        {0x380e, 0x0c},
 242        {0x380f, 0x8e},
 243        {0x3811, 0x04},
 244        {0x3813, 0x05},
 245        {0x3814, 0x01},
 246        {0x3815, 0x01},
 247        {0x3816, 0x01},
 248        {0x3817, 0x01},
 249        {0x3820, 0xa8},
 250        {0x3821, 0x00},
 251        {0x3822, 0xc2},
 252        {0x3823, 0x18},
 253        {0x3826, 0x11},
 254        {0x3827, 0x1c},
 255        {0x3829, 0x03},
 256        {0x3832, 0x00},
 257        {0x3c80, 0x00},
 258        {0x3c87, 0x01},
 259        {0x3c8c, 0x19},
 260        {0x3c8d, 0x1c},
 261        {0x3c90, 0x00},
 262        {0x3c91, 0x00},
 263        {0x3c92, 0x00},
 264        {0x3c93, 0x00},
 265        {0x3c94, 0x40},
 266        {0x3c95, 0x54},
 267        {0x3c96, 0x34},
 268        {0x3c97, 0x04},
 269        {0x3c98, 0x00},
 270        {0x3d8c, 0x73},
 271        {0x3d8d, 0xc0},
 272        {0x3f00, 0x0b},
 273        {0x3f03, 0x00},
 274        {0x4001, 0xe0},
 275        {0x4008, 0x00},
 276        {0x4009, 0x0f},
 277        {0x4011, 0xf0},
 278        {0x4017, 0x08},
 279        {0x4050, 0x04},
 280        {0x4051, 0x0b},
 281        {0x4052, 0x00},
 282        {0x4053, 0x80},
 283        {0x4054, 0x00},
 284        {0x4055, 0x80},
 285        {0x4056, 0x00},
 286        {0x4057, 0x80},
 287        {0x4058, 0x00},
 288        {0x4059, 0x80},
 289        {0x405e, 0x20},
 290        {0x4500, 0x07},
 291        {0x4503, 0x00},
 292        {0x450a, 0x04},
 293        {0x4809, 0x04},
 294        {0x480c, 0x12},
 295        {0x481f, 0x30},
 296        {0x4833, 0x10},
 297        {0x4837, 0x0e},
 298        {0x4902, 0x01},
 299        {0x4d00, 0x03},
 300        {0x4d01, 0xc9},
 301        {0x4d02, 0xbc},
 302        {0x4d03, 0xd7},
 303        {0x4d04, 0xf0},
 304        {0x4d05, 0xa2},
 305        {0x5000, 0xfd},
 306        {0x5001, 0x01},
 307        {0x5040, 0x39},
 308        {0x5041, 0x10},
 309        {0x5042, 0x10},
 310        {0x5043, 0x84},
 311        {0x5044, 0x62},
 312        {0x5180, 0x00},
 313        {0x5181, 0x10},
 314        {0x5182, 0x02},
 315        {0x5183, 0x0f},
 316        {0x5200, 0x1b},
 317        {0x520b, 0x07},
 318        {0x520c, 0x0f},
 319        {0x5300, 0x04},
 320        {0x5301, 0x0c},
 321        {0x5302, 0x0c},
 322        {0x5303, 0x0f},
 323        {0x5304, 0x00},
 324        {0x5305, 0x70},
 325        {0x5306, 0x00},
 326        {0x5307, 0x80},
 327        {0x5308, 0x00},
 328        {0x5309, 0xa5},
 329        {0x530a, 0x00},
 330        {0x530b, 0xd3},
 331        {0x530c, 0x00},
 332        {0x530d, 0xf0},
 333        {0x530e, 0x01},
 334        {0x530f, 0x10},
 335        {0x5310, 0x01},
 336        {0x5311, 0x20},
 337        {0x5312, 0x01},
 338        {0x5313, 0x20},
 339        {0x5314, 0x01},
 340        {0x5315, 0x20},
 341        {0x5316, 0x08},
 342        {0x5317, 0x08},
 343        {0x5318, 0x10},
 344        {0x5319, 0x88},
 345        {0x531a, 0x88},
 346        {0x531b, 0xa9},
 347        {0x531c, 0xaa},
 348        {0x531d, 0x0a},
 349        {0x5405, 0x02},
 350        {0x5406, 0x67},
 351        {0x5407, 0x01},
 352        {0x5408, 0x4a},
 353};
 354
 355static const struct ov13858_reg mode_2112x1568_regs[] = {
 356        {0x3013, 0x32},
 357        {0x301b, 0xf0},
 358        {0x301f, 0xd0},
 359        {0x3106, 0x15},
 360        {0x3107, 0x23},
 361        {0x350a, 0x00},
 362        {0x350e, 0x00},
 363        {0x3510, 0x00},
 364        {0x3511, 0x02},
 365        {0x3512, 0x00},
 366        {0x3600, 0x2b},
 367        {0x3601, 0x52},
 368        {0x3602, 0x60},
 369        {0x3612, 0x05},
 370        {0x3613, 0xa4},
 371        {0x3620, 0x80},
 372        {0x3621, 0x10},
 373        {0x3622, 0x30},
 374        {0x3624, 0x1c},
 375        {0x3640, 0x10},
 376        {0x3641, 0x70},
 377        {0x3660, 0x04},
 378        {0x3661, 0x80},
 379        {0x3662, 0x10},
 380        {0x3664, 0x73},
 381        {0x3665, 0xa7},
 382        {0x366e, 0xff},
 383        {0x366f, 0xf4},
 384        {0x3674, 0x00},
 385        {0x3679, 0x0c},
 386        {0x367f, 0x01},
 387        {0x3680, 0x0c},
 388        {0x3681, 0x50},
 389        {0x3682, 0x50},
 390        {0x3683, 0xa9},
 391        {0x3684, 0xa9},
 392        {0x3709, 0x5f},
 393        {0x3714, 0x28},
 394        {0x371a, 0x3e},
 395        {0x3737, 0x08},
 396        {0x3738, 0xcc},
 397        {0x3739, 0x20},
 398        {0x373d, 0x26},
 399        {0x3764, 0x20},
 400        {0x3765, 0x20},
 401        {0x37a1, 0x36},
 402        {0x37a8, 0x3b},
 403        {0x37ab, 0x31},
 404        {0x37c2, 0x14},
 405        {0x37c3, 0xf1},
 406        {0x37c5, 0x00},
 407        {0x37d8, 0x03},
 408        {0x37d9, 0x0c},
 409        {0x37da, 0xc2},
 410        {0x37dc, 0x02},
 411        {0x37e0, 0x00},
 412        {0x37e1, 0x0a},
 413        {0x37e2, 0x14},
 414        {0x37e3, 0x08},
 415        {0x37e4, 0x38},
 416        {0x37e5, 0x03},
 417        {0x37e6, 0x08},
 418        {0x3800, 0x00},
 419        {0x3801, 0x00},
 420        {0x3802, 0x00},
 421        {0x3803, 0x00},
 422        {0x3804, 0x10},
 423        {0x3805, 0x9f},
 424        {0x3806, 0x0c},
 425        {0x3807, 0x5f},
 426        {0x3808, 0x08},
 427        {0x3809, 0x40},
 428        {0x380a, 0x06},
 429        {0x380b, 0x20},
 430        {0x380c, 0x04},
 431        {0x380d, 0x62},
 432        {0x380e, 0x0c},
 433        {0x380f, 0x8e},
 434        {0x3811, 0x04},
 435        {0x3813, 0x05},
 436        {0x3814, 0x03},
 437        {0x3815, 0x01},
 438        {0x3816, 0x03},
 439        {0x3817, 0x01},
 440        {0x3820, 0xab},
 441        {0x3821, 0x00},
 442        {0x3822, 0xc2},
 443        {0x3823, 0x18},
 444        {0x3826, 0x04},
 445        {0x3827, 0x90},
 446        {0x3829, 0x07},
 447        {0x3832, 0x00},
 448        {0x3c80, 0x00},
 449        {0x3c87, 0x01},
 450        {0x3c8c, 0x19},
 451        {0x3c8d, 0x1c},
 452        {0x3c90, 0x00},
 453        {0x3c91, 0x00},
 454        {0x3c92, 0x00},
 455        {0x3c93, 0x00},
 456        {0x3c94, 0x40},
 457        {0x3c95, 0x54},
 458        {0x3c96, 0x34},
 459        {0x3c97, 0x04},
 460        {0x3c98, 0x00},
 461        {0x3d8c, 0x73},
 462        {0x3d8d, 0xc0},
 463        {0x3f00, 0x0b},
 464        {0x3f03, 0x00},
 465        {0x4001, 0xe0},
 466        {0x4008, 0x00},
 467        {0x4009, 0x0d},
 468        {0x4011, 0xf0},
 469        {0x4017, 0x08},
 470        {0x4050, 0x04},
 471        {0x4051, 0x0b},
 472        {0x4052, 0x00},
 473        {0x4053, 0x80},
 474        {0x4054, 0x00},
 475        {0x4055, 0x80},
 476        {0x4056, 0x00},
 477        {0x4057, 0x80},
 478        {0x4058, 0x00},
 479        {0x4059, 0x80},
 480        {0x405e, 0x20},
 481        {0x4500, 0x07},
 482        {0x4503, 0x00},
 483        {0x450a, 0x04},
 484        {0x4809, 0x04},
 485        {0x480c, 0x12},
 486        {0x481f, 0x30},
 487        {0x4833, 0x10},
 488        {0x4837, 0x1c},
 489        {0x4902, 0x01},
 490        {0x4d00, 0x03},
 491        {0x4d01, 0xc9},
 492        {0x4d02, 0xbc},
 493        {0x4d03, 0xd7},
 494        {0x4d04, 0xf0},
 495        {0x4d05, 0xa2},
 496        {0x5000, 0xfd},
 497        {0x5001, 0x01},
 498        {0x5040, 0x39},
 499        {0x5041, 0x10},
 500        {0x5042, 0x10},
 501        {0x5043, 0x84},
 502        {0x5044, 0x62},
 503        {0x5180, 0x00},
 504        {0x5181, 0x10},
 505        {0x5182, 0x02},
 506        {0x5183, 0x0f},
 507        {0x5200, 0x1b},
 508        {0x520b, 0x07},
 509        {0x520c, 0x0f},
 510        {0x5300, 0x04},
 511        {0x5301, 0x0c},
 512        {0x5302, 0x0c},
 513        {0x5303, 0x0f},
 514        {0x5304, 0x00},
 515        {0x5305, 0x70},
 516        {0x5306, 0x00},
 517        {0x5307, 0x80},
 518        {0x5308, 0x00},
 519        {0x5309, 0xa5},
 520        {0x530a, 0x00},
 521        {0x530b, 0xd3},
 522        {0x530c, 0x00},
 523        {0x530d, 0xf0},
 524        {0x530e, 0x01},
 525        {0x530f, 0x10},
 526        {0x5310, 0x01},
 527        {0x5311, 0x20},
 528        {0x5312, 0x01},
 529        {0x5313, 0x20},
 530        {0x5314, 0x01},
 531        {0x5315, 0x20},
 532        {0x5316, 0x08},
 533        {0x5317, 0x08},
 534        {0x5318, 0x10},
 535        {0x5319, 0x88},
 536        {0x531a, 0x88},
 537        {0x531b, 0xa9},
 538        {0x531c, 0xaa},
 539        {0x531d, 0x0a},
 540        {0x5405, 0x02},
 541        {0x5406, 0x67},
 542        {0x5407, 0x01},
 543        {0x5408, 0x4a},
 544};
 545
 546static const struct ov13858_reg mode_2112x1188_regs[] = {
 547        {0x3013, 0x32},
 548        {0x301b, 0xf0},
 549        {0x301f, 0xd0},
 550        {0x3106, 0x15},
 551        {0x3107, 0x23},
 552        {0x350a, 0x00},
 553        {0x350e, 0x00},
 554        {0x3510, 0x00},
 555        {0x3511, 0x02},
 556        {0x3512, 0x00},
 557        {0x3600, 0x2b},
 558        {0x3601, 0x52},
 559        {0x3602, 0x60},
 560        {0x3612, 0x05},
 561        {0x3613, 0xa4},
 562        {0x3620, 0x80},
 563        {0x3621, 0x10},
 564        {0x3622, 0x30},
 565        {0x3624, 0x1c},
 566        {0x3640, 0x10},
 567        {0x3641, 0x70},
 568        {0x3660, 0x04},
 569        {0x3661, 0x80},
 570        {0x3662, 0x10},
 571        {0x3664, 0x73},
 572        {0x3665, 0xa7},
 573        {0x366e, 0xff},
 574        {0x366f, 0xf4},
 575        {0x3674, 0x00},
 576        {0x3679, 0x0c},
 577        {0x367f, 0x01},
 578        {0x3680, 0x0c},
 579        {0x3681, 0x50},
 580        {0x3682, 0x50},
 581        {0x3683, 0xa9},
 582        {0x3684, 0xa9},
 583        {0x3709, 0x5f},
 584        {0x3714, 0x28},
 585        {0x371a, 0x3e},
 586        {0x3737, 0x08},
 587        {0x3738, 0xcc},
 588        {0x3739, 0x20},
 589        {0x373d, 0x26},
 590        {0x3764, 0x20},
 591        {0x3765, 0x20},
 592        {0x37a1, 0x36},
 593        {0x37a8, 0x3b},
 594        {0x37ab, 0x31},
 595        {0x37c2, 0x14},
 596        {0x37c3, 0xf1},
 597        {0x37c5, 0x00},
 598        {0x37d8, 0x03},
 599        {0x37d9, 0x0c},
 600        {0x37da, 0xc2},
 601        {0x37dc, 0x02},
 602        {0x37e0, 0x00},
 603        {0x37e1, 0x0a},
 604        {0x37e2, 0x14},
 605        {0x37e3, 0x08},
 606        {0x37e4, 0x38},
 607        {0x37e5, 0x03},
 608        {0x37e6, 0x08},
 609        {0x3800, 0x00},
 610        {0x3801, 0x00},
 611        {0x3802, 0x01},
 612        {0x3803, 0x84},
 613        {0x3804, 0x10},
 614        {0x3805, 0x9f},
 615        {0x3806, 0x0a},
 616        {0x3807, 0xd3},
 617        {0x3808, 0x08},
 618        {0x3809, 0x40},
 619        {0x380a, 0x04},
 620        {0x380b, 0xa4},
 621        {0x380c, 0x04},
 622        {0x380d, 0x62},
 623        {0x380e, 0x0c},
 624        {0x380f, 0x8e},
 625        {0x3811, 0x08},
 626        {0x3813, 0x03},
 627        {0x3814, 0x03},
 628        {0x3815, 0x01},
 629        {0x3816, 0x03},
 630        {0x3817, 0x01},
 631        {0x3820, 0xab},
 632        {0x3821, 0x00},
 633        {0x3822, 0xc2},
 634        {0x3823, 0x18},
 635        {0x3826, 0x04},
 636        {0x3827, 0x90},
 637        {0x3829, 0x07},
 638        {0x3832, 0x00},
 639        {0x3c80, 0x00},
 640        {0x3c87, 0x01},
 641        {0x3c8c, 0x19},
 642        {0x3c8d, 0x1c},
 643        {0x3c90, 0x00},
 644        {0x3c91, 0x00},
 645        {0x3c92, 0x00},
 646        {0x3c93, 0x00},
 647        {0x3c94, 0x40},
 648        {0x3c95, 0x54},
 649        {0x3c96, 0x34},
 650        {0x3c97, 0x04},
 651        {0x3c98, 0x00},
 652        {0x3d8c, 0x73},
 653        {0x3d8d, 0xc0},
 654        {0x3f00, 0x0b},
 655        {0x3f03, 0x00},
 656        {0x4001, 0xe0},
 657        {0x4008, 0x00},
 658        {0x4009, 0x0d},
 659        {0x4011, 0xf0},
 660        {0x4017, 0x08},
 661        {0x4050, 0x04},
 662        {0x4051, 0x0b},
 663        {0x4052, 0x00},
 664        {0x4053, 0x80},
 665        {0x4054, 0x00},
 666        {0x4055, 0x80},
 667        {0x4056, 0x00},
 668        {0x4057, 0x80},
 669        {0x4058, 0x00},
 670        {0x4059, 0x80},
 671        {0x405e, 0x20},
 672        {0x4500, 0x07},
 673        {0x4503, 0x00},
 674        {0x450a, 0x04},
 675        {0x4809, 0x04},
 676        {0x480c, 0x12},
 677        {0x481f, 0x30},
 678        {0x4833, 0x10},
 679        {0x4837, 0x1c},
 680        {0x4902, 0x01},
 681        {0x4d00, 0x03},
 682        {0x4d01, 0xc9},
 683        {0x4d02, 0xbc},
 684        {0x4d03, 0xd7},
 685        {0x4d04, 0xf0},
 686        {0x4d05, 0xa2},
 687        {0x5000, 0xfd},
 688        {0x5001, 0x01},
 689        {0x5040, 0x39},
 690        {0x5041, 0x10},
 691        {0x5042, 0x10},
 692        {0x5043, 0x84},
 693        {0x5044, 0x62},
 694        {0x5180, 0x00},
 695        {0x5181, 0x10},
 696        {0x5182, 0x02},
 697        {0x5183, 0x0f},
 698        {0x5200, 0x1b},
 699        {0x520b, 0x07},
 700        {0x520c, 0x0f},
 701        {0x5300, 0x04},
 702        {0x5301, 0x0c},
 703        {0x5302, 0x0c},
 704        {0x5303, 0x0f},
 705        {0x5304, 0x00},
 706        {0x5305, 0x70},
 707        {0x5306, 0x00},
 708        {0x5307, 0x80},
 709        {0x5308, 0x00},
 710        {0x5309, 0xa5},
 711        {0x530a, 0x00},
 712        {0x530b, 0xd3},
 713        {0x530c, 0x00},
 714        {0x530d, 0xf0},
 715        {0x530e, 0x01},
 716        {0x530f, 0x10},
 717        {0x5310, 0x01},
 718        {0x5311, 0x20},
 719        {0x5312, 0x01},
 720        {0x5313, 0x20},
 721        {0x5314, 0x01},
 722        {0x5315, 0x20},
 723        {0x5316, 0x08},
 724        {0x5317, 0x08},
 725        {0x5318, 0x10},
 726        {0x5319, 0x88},
 727        {0x531a, 0x88},
 728        {0x531b, 0xa9},
 729        {0x531c, 0xaa},
 730        {0x531d, 0x0a},
 731        {0x5405, 0x02},
 732        {0x5406, 0x67},
 733        {0x5407, 0x01},
 734        {0x5408, 0x4a},
 735};
 736
 737static const struct ov13858_reg mode_1056x784_regs[] = {
 738        {0x3013, 0x32},
 739        {0x301b, 0xf0},
 740        {0x301f, 0xd0},
 741        {0x3106, 0x15},
 742        {0x3107, 0x23},
 743        {0x350a, 0x00},
 744        {0x350e, 0x00},
 745        {0x3510, 0x00},
 746        {0x3511, 0x02},
 747        {0x3512, 0x00},
 748        {0x3600, 0x2b},
 749        {0x3601, 0x52},
 750        {0x3602, 0x60},
 751        {0x3612, 0x05},
 752        {0x3613, 0xa4},
 753        {0x3620, 0x80},
 754        {0x3621, 0x10},
 755        {0x3622, 0x30},
 756        {0x3624, 0x1c},
 757        {0x3640, 0x10},
 758        {0x3641, 0x70},
 759        {0x3660, 0x04},
 760        {0x3661, 0x80},
 761        {0x3662, 0x08},
 762        {0x3664, 0x73},
 763        {0x3665, 0xa7},
 764        {0x366e, 0xff},
 765        {0x366f, 0xf4},
 766        {0x3674, 0x00},
 767        {0x3679, 0x0c},
 768        {0x367f, 0x01},
 769        {0x3680, 0x0c},
 770        {0x3681, 0x50},
 771        {0x3682, 0x50},
 772        {0x3683, 0xa9},
 773        {0x3684, 0xa9},
 774        {0x3709, 0x5f},
 775        {0x3714, 0x30},
 776        {0x371a, 0x3e},
 777        {0x3737, 0x08},
 778        {0x3738, 0xcc},
 779        {0x3739, 0x20},
 780        {0x373d, 0x26},
 781        {0x3764, 0x20},
 782        {0x3765, 0x20},
 783        {0x37a1, 0x36},
 784        {0x37a8, 0x3b},
 785        {0x37ab, 0x31},
 786        {0x37c2, 0x2c},
 787        {0x37c3, 0xf1},
 788        {0x37c5, 0x00},
 789        {0x37d8, 0x03},
 790        {0x37d9, 0x06},
 791        {0x37da, 0xc2},
 792        {0x37dc, 0x02},
 793        {0x37e0, 0x00},
 794        {0x37e1, 0x0a},
 795        {0x37e2, 0x14},
 796        {0x37e3, 0x08},
 797        {0x37e4, 0x36},
 798        {0x37e5, 0x03},
 799        {0x37e6, 0x08},
 800        {0x3800, 0x00},
 801        {0x3801, 0x00},
 802        {0x3802, 0x00},
 803        {0x3803, 0x00},
 804        {0x3804, 0x10},
 805        {0x3805, 0x9f},
 806        {0x3806, 0x0c},
 807        {0x3807, 0x5f},
 808        {0x3808, 0x04},
 809        {0x3809, 0x20},
 810        {0x380a, 0x03},
 811        {0x380b, 0x10},
 812        {0x380c, 0x04},
 813        {0x380d, 0x62},
 814        {0x380e, 0x0c},
 815        {0x380f, 0x8e},
 816        {0x3811, 0x04},
 817        {0x3813, 0x05},
 818        {0x3814, 0x07},
 819        {0x3815, 0x01},
 820        {0x3816, 0x07},
 821        {0x3817, 0x01},
 822        {0x3820, 0xac},
 823        {0x3821, 0x00},
 824        {0x3822, 0xc2},
 825        {0x3823, 0x18},
 826        {0x3826, 0x04},
 827        {0x3827, 0x48},
 828        {0x3829, 0x03},
 829        {0x3832, 0x00},
 830        {0x3c80, 0x00},
 831        {0x3c87, 0x01},
 832        {0x3c8c, 0x19},
 833        {0x3c8d, 0x1c},
 834        {0x3c90, 0x00},
 835        {0x3c91, 0x00},
 836        {0x3c92, 0x00},
 837        {0x3c93, 0x00},
 838        {0x3c94, 0x40},
 839        {0x3c95, 0x54},
 840        {0x3c96, 0x34},
 841        {0x3c97, 0x04},
 842        {0x3c98, 0x00},
 843        {0x3d8c, 0x73},
 844        {0x3d8d, 0xc0},
 845        {0x3f00, 0x0b},
 846        {0x3f03, 0x00},
 847        {0x4001, 0xe0},
 848        {0x4008, 0x00},
 849        {0x4009, 0x05},
 850        {0x4011, 0xf0},
 851        {0x4017, 0x08},
 852        {0x4050, 0x02},
 853        {0x4051, 0x05},
 854        {0x4052, 0x00},
 855        {0x4053, 0x80},
 856        {0x4054, 0x00},
 857        {0x4055, 0x80},
 858        {0x4056, 0x00},
 859        {0x4057, 0x80},
 860        {0x4058, 0x00},
 861        {0x4059, 0x80},
 862        {0x405e, 0x20},
 863        {0x4500, 0x07},
 864        {0x4503, 0x00},
 865        {0x450a, 0x04},
 866        {0x4809, 0x04},
 867        {0x480c, 0x12},
 868        {0x481f, 0x30},
 869        {0x4833, 0x10},
 870        {0x4837, 0x1e},
 871        {0x4902, 0x02},
 872        {0x4d00, 0x03},
 873        {0x4d01, 0xc9},
 874        {0x4d02, 0xbc},
 875        {0x4d03, 0xd7},
 876        {0x4d04, 0xf0},
 877        {0x4d05, 0xa2},
 878        {0x5000, 0xfd},
 879        {0x5001, 0x01},
 880        {0x5040, 0x39},
 881        {0x5041, 0x10},
 882        {0x5042, 0x10},
 883        {0x5043, 0x84},
 884        {0x5044, 0x62},
 885        {0x5180, 0x00},
 886        {0x5181, 0x10},
 887        {0x5182, 0x02},
 888        {0x5183, 0x0f},
 889        {0x5200, 0x1b},
 890        {0x520b, 0x07},
 891        {0x520c, 0x0f},
 892        {0x5300, 0x04},
 893        {0x5301, 0x0c},
 894        {0x5302, 0x0c},
 895        {0x5303, 0x0f},
 896        {0x5304, 0x00},
 897        {0x5305, 0x70},
 898        {0x5306, 0x00},
 899        {0x5307, 0x80},
 900        {0x5308, 0x00},
 901        {0x5309, 0xa5},
 902        {0x530a, 0x00},
 903        {0x530b, 0xd3},
 904        {0x530c, 0x00},
 905        {0x530d, 0xf0},
 906        {0x530e, 0x01},
 907        {0x530f, 0x10},
 908        {0x5310, 0x01},
 909        {0x5311, 0x20},
 910        {0x5312, 0x01},
 911        {0x5313, 0x20},
 912        {0x5314, 0x01},
 913        {0x5315, 0x20},
 914        {0x5316, 0x08},
 915        {0x5317, 0x08},
 916        {0x5318, 0x10},
 917        {0x5319, 0x88},
 918        {0x531a, 0x88},
 919        {0x531b, 0xa9},
 920        {0x531c, 0xaa},
 921        {0x531d, 0x0a},
 922        {0x5405, 0x02},
 923        {0x5406, 0x67},
 924        {0x5407, 0x01},
 925        {0x5408, 0x4a},
 926};
 927
 928static const char * const ov13858_test_pattern_menu[] = {
 929        "Disabled",
 930        "Vertical Color Bar Type 1",
 931        "Vertical Color Bar Type 2",
 932        "Vertical Color Bar Type 3",
 933        "Vertical Color Bar Type 4"
 934};
 935
 936/* Configurations for supported link frequencies */
 937#define OV13858_NUM_OF_LINK_FREQS       2
 938#define OV13858_LINK_FREQ_540MHZ        540000000ULL
 939#define OV13858_LINK_FREQ_270MHZ        270000000ULL
 940#define OV13858_LINK_FREQ_INDEX_0       0
 941#define OV13858_LINK_FREQ_INDEX_1       1
 942
 943/*
 944 * pixel_rate = link_freq * data-rate * nr_of_lanes / bits_per_sample
 945 * data rate => double data rate; number of lanes => 4; bits per pixel => 10
 946 */
 947static u64 link_freq_to_pixel_rate(u64 f)
 948{
 949        f *= 2 * 4;
 950        do_div(f, 10);
 951
 952        return f;
 953}
 954
 955/* Menu items for LINK_FREQ V4L2 control */
 956static const s64 link_freq_menu_items[OV13858_NUM_OF_LINK_FREQS] = {
 957        OV13858_LINK_FREQ_540MHZ,
 958        OV13858_LINK_FREQ_270MHZ
 959};
 960
 961/* Link frequency configs */
 962static const struct ov13858_link_freq_config
 963                        link_freq_configs[OV13858_NUM_OF_LINK_FREQS] = {
 964        {
 965                .pixels_per_line = OV13858_PPL_540MHZ,
 966                .reg_list = {
 967                        .num_of_regs = ARRAY_SIZE(mipi_data_rate_1080mbps),
 968                        .regs = mipi_data_rate_1080mbps,
 969                }
 970        },
 971        {
 972                .pixels_per_line = OV13858_PPL_270MHZ,
 973                .reg_list = {
 974                        .num_of_regs = ARRAY_SIZE(mipi_data_rate_540mbps),
 975                        .regs = mipi_data_rate_540mbps,
 976                }
 977        }
 978};
 979
 980/* Mode configs */
 981static const struct ov13858_mode supported_modes[] = {
 982        {
 983                .width = 4224,
 984                .height = 3136,
 985                .vts_def = OV13858_VTS_30FPS,
 986                .vts_min = OV13858_VTS_30FPS,
 987                .reg_list = {
 988                        .num_of_regs = ARRAY_SIZE(mode_4224x3136_regs),
 989                        .regs = mode_4224x3136_regs,
 990                },
 991                .link_freq_index = OV13858_LINK_FREQ_INDEX_0,
 992        },
 993        {
 994                .width = 2112,
 995                .height = 1568,
 996                .vts_def = OV13858_VTS_30FPS,
 997                .vts_min = 1608,
 998                .reg_list = {
 999                        .num_of_regs = ARRAY_SIZE(mode_2112x1568_regs),
1000                        .regs = mode_2112x1568_regs,
1001                },
1002                .link_freq_index = OV13858_LINK_FREQ_INDEX_1,
1003        },
1004        {
1005                .width = 2112,
1006                .height = 1188,
1007                .vts_def = OV13858_VTS_30FPS,
1008                .vts_min = 1608,
1009                .reg_list = {
1010                        .num_of_regs = ARRAY_SIZE(mode_2112x1188_regs),
1011                        .regs = mode_2112x1188_regs,
1012                },
1013                .link_freq_index = OV13858_LINK_FREQ_INDEX_1,
1014        },
1015        {
1016                .width = 1056,
1017                .height = 784,
1018                .vts_def = OV13858_VTS_30FPS,
1019                .vts_min = 804,
1020                .reg_list = {
1021                        .num_of_regs = ARRAY_SIZE(mode_1056x784_regs),
1022                        .regs = mode_1056x784_regs,
1023                },
1024                .link_freq_index = OV13858_LINK_FREQ_INDEX_1,
1025        }
1026};
1027
1028struct ov13858 {
1029        struct v4l2_subdev sd;
1030        struct media_pad pad;
1031
1032        struct v4l2_ctrl_handler ctrl_handler;
1033        /* V4L2 Controls */
1034        struct v4l2_ctrl *link_freq;
1035        struct v4l2_ctrl *pixel_rate;
1036        struct v4l2_ctrl *vblank;
1037        struct v4l2_ctrl *hblank;
1038        struct v4l2_ctrl *exposure;
1039
1040        /* Current mode */
1041        const struct ov13858_mode *cur_mode;
1042
1043        /* Mutex for serialized access */
1044        struct mutex mutex;
1045
1046        /* Streaming on/off */
1047        bool streaming;
1048};
1049
1050#define to_ov13858(_sd) container_of(_sd, struct ov13858, sd)
1051
1052/* Read registers up to 4 at a time */
1053static int ov13858_read_reg(struct ov13858 *ov13858, u16 reg, u32 len,
1054                            u32 *val)
1055{
1056        struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
1057        struct i2c_msg msgs[2];
1058        u8 *data_be_p;
1059        int ret;
1060        __be32 data_be = 0;
1061        __be16 reg_addr_be = cpu_to_be16(reg);
1062
1063        if (len > 4)
1064                return -EINVAL;
1065
1066        data_be_p = (u8 *)&data_be;
1067        /* Write register address */
1068        msgs[0].addr = client->addr;
1069        msgs[0].flags = 0;
1070        msgs[0].len = 2;
1071        msgs[0].buf = (u8 *)&reg_addr_be;
1072
1073        /* Read data from register */
1074        msgs[1].addr = client->addr;
1075        msgs[1].flags = I2C_M_RD;
1076        msgs[1].len = len;
1077        msgs[1].buf = &data_be_p[4 - len];
1078
1079        ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
1080        if (ret != ARRAY_SIZE(msgs))
1081                return -EIO;
1082
1083        *val = be32_to_cpu(data_be);
1084
1085        return 0;
1086}
1087
1088/* Write registers up to 4 at a time */
1089static int ov13858_write_reg(struct ov13858 *ov13858, u16 reg, u32 len,
1090                             u32 __val)
1091{
1092        struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
1093        int buf_i, val_i;
1094        u8 buf[6], *val_p;
1095        __be32 val;
1096
1097        if (len > 4)
1098                return -EINVAL;
1099
1100        buf[0] = reg >> 8;
1101        buf[1] = reg & 0xff;
1102
1103        val = cpu_to_be32(__val);
1104        val_p = (u8 *)&val;
1105        buf_i = 2;
1106        val_i = 4 - len;
1107
1108        while (val_i < 4)
1109                buf[buf_i++] = val_p[val_i++];
1110
1111        if (i2c_master_send(client, buf, len + 2) != len + 2)
1112                return -EIO;
1113
1114        return 0;
1115}
1116
1117/* Write a list of registers */
1118static int ov13858_write_regs(struct ov13858 *ov13858,
1119                              const struct ov13858_reg *regs, u32 len)
1120{
1121        struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
1122        int ret;
1123        u32 i;
1124
1125        for (i = 0; i < len; i++) {
1126                ret = ov13858_write_reg(ov13858, regs[i].address, 1,
1127                                        regs[i].val);
1128                if (ret) {
1129                        dev_err_ratelimited(
1130                                &client->dev,
1131                                "Failed to write reg 0x%4.4x. error = %d\n",
1132                                regs[i].address, ret);
1133
1134                        return ret;
1135                }
1136        }
1137
1138        return 0;
1139}
1140
1141static int ov13858_write_reg_list(struct ov13858 *ov13858,
1142                                  const struct ov13858_reg_list *r_list)
1143{
1144        return ov13858_write_regs(ov13858, r_list->regs, r_list->num_of_regs);
1145}
1146
1147/* Open sub-device */
1148static int ov13858_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
1149{
1150        struct ov13858 *ov13858 = to_ov13858(sd);
1151        struct v4l2_mbus_framefmt *try_fmt = v4l2_subdev_get_try_format(sd,
1152                                                                        fh->pad,
1153                                                                        0);
1154
1155        mutex_lock(&ov13858->mutex);
1156
1157        /* Initialize try_fmt */
1158        try_fmt->width = ov13858->cur_mode->width;
1159        try_fmt->height = ov13858->cur_mode->height;
1160        try_fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
1161        try_fmt->field = V4L2_FIELD_NONE;
1162
1163        /* No crop or compose */
1164        mutex_unlock(&ov13858->mutex);
1165
1166        return 0;
1167}
1168
1169static int ov13858_update_digital_gain(struct ov13858 *ov13858, u32 d_gain)
1170{
1171        int ret;
1172
1173        ret = ov13858_write_reg(ov13858, OV13858_REG_B_MWB_GAIN,
1174                                OV13858_REG_VALUE_16BIT, d_gain);
1175        if (ret)
1176                return ret;
1177
1178        ret = ov13858_write_reg(ov13858, OV13858_REG_G_MWB_GAIN,
1179                                OV13858_REG_VALUE_16BIT, d_gain);
1180        if (ret)
1181                return ret;
1182
1183        ret = ov13858_write_reg(ov13858, OV13858_REG_R_MWB_GAIN,
1184                                OV13858_REG_VALUE_16BIT, d_gain);
1185
1186        return ret;
1187}
1188
1189static int ov13858_enable_test_pattern(struct ov13858 *ov13858, u32 pattern)
1190{
1191        int ret;
1192        u32 val;
1193
1194        ret = ov13858_read_reg(ov13858, OV13858_REG_TEST_PATTERN,
1195                               OV13858_REG_VALUE_08BIT, &val);
1196        if (ret)
1197                return ret;
1198
1199        if (pattern) {
1200                val &= OV13858_TEST_PATTERN_MASK;
1201                val |= (pattern - 1) | OV13858_TEST_PATTERN_ENABLE;
1202        } else {
1203                val &= ~OV13858_TEST_PATTERN_ENABLE;
1204        }
1205
1206        return ov13858_write_reg(ov13858, OV13858_REG_TEST_PATTERN,
1207                                 OV13858_REG_VALUE_08BIT, val);
1208}
1209
1210static int ov13858_set_ctrl(struct v4l2_ctrl *ctrl)
1211{
1212        struct ov13858 *ov13858 = container_of(ctrl->handler,
1213                                               struct ov13858, ctrl_handler);
1214        struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
1215        s64 max;
1216        int ret;
1217
1218        /* Propagate change of current control to all related controls */
1219        switch (ctrl->id) {
1220        case V4L2_CID_VBLANK:
1221                /* Update max exposure while meeting expected vblanking */
1222                max = ov13858->cur_mode->height + ctrl->val - 8;
1223                __v4l2_ctrl_modify_range(ov13858->exposure,
1224                                         ov13858->exposure->minimum,
1225                                         max, ov13858->exposure->step, max);
1226                break;
1227        };
1228
1229        /*
1230         * Applying V4L2 control value only happens
1231         * when power is up for streaming
1232         */
1233        if (!pm_runtime_get_if_in_use(&client->dev))
1234                return 0;
1235
1236        ret = 0;
1237        switch (ctrl->id) {
1238        case V4L2_CID_ANALOGUE_GAIN:
1239                ret = ov13858_write_reg(ov13858, OV13858_REG_ANALOG_GAIN,
1240                                        OV13858_REG_VALUE_16BIT, ctrl->val);
1241                break;
1242        case V4L2_CID_DIGITAL_GAIN:
1243                ret = ov13858_update_digital_gain(ov13858, ctrl->val);
1244                break;
1245        case V4L2_CID_EXPOSURE:
1246                ret = ov13858_write_reg(ov13858, OV13858_REG_EXPOSURE,
1247                                        OV13858_REG_VALUE_24BIT,
1248                                        ctrl->val << 4);
1249                break;
1250        case V4L2_CID_VBLANK:
1251                /* Update VTS that meets expected vertical blanking */
1252                ret = ov13858_write_reg(ov13858, OV13858_REG_VTS,
1253                                        OV13858_REG_VALUE_16BIT,
1254                                        ov13858->cur_mode->height
1255                                          + ctrl->val);
1256                break;
1257        case V4L2_CID_TEST_PATTERN:
1258                ret = ov13858_enable_test_pattern(ov13858, ctrl->val);
1259                break;
1260        default:
1261                dev_info(&client->dev,
1262                         "ctrl(id:0x%x,val:0x%x) is not handled\n",
1263                         ctrl->id, ctrl->val);
1264                break;
1265        };
1266
1267        pm_runtime_put(&client->dev);
1268
1269        return ret;
1270}
1271
1272static const struct v4l2_ctrl_ops ov13858_ctrl_ops = {
1273        .s_ctrl = ov13858_set_ctrl,
1274};
1275
1276static int ov13858_enum_mbus_code(struct v4l2_subdev *sd,
1277                                  struct v4l2_subdev_pad_config *cfg,
1278                                  struct v4l2_subdev_mbus_code_enum *code)
1279{
1280        /* Only one bayer order(GRBG) is supported */
1281        if (code->index > 0)
1282                return -EINVAL;
1283
1284        code->code = MEDIA_BUS_FMT_SGRBG10_1X10;
1285
1286        return 0;
1287}
1288
1289static int ov13858_enum_frame_size(struct v4l2_subdev *sd,
1290                                   struct v4l2_subdev_pad_config *cfg,
1291                                   struct v4l2_subdev_frame_size_enum *fse)
1292{
1293        if (fse->index >= ARRAY_SIZE(supported_modes))
1294                return -EINVAL;
1295
1296        if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10)
1297                return -EINVAL;
1298
1299        fse->min_width = supported_modes[fse->index].width;
1300        fse->max_width = fse->min_width;
1301        fse->min_height = supported_modes[fse->index].height;
1302        fse->max_height = fse->min_height;
1303
1304        return 0;
1305}
1306
1307static void ov13858_update_pad_format(const struct ov13858_mode *mode,
1308                                      struct v4l2_subdev_format *fmt)
1309{
1310        fmt->format.width = mode->width;
1311        fmt->format.height = mode->height;
1312        fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
1313        fmt->format.field = V4L2_FIELD_NONE;
1314}
1315
1316static int ov13858_do_get_pad_format(struct ov13858 *ov13858,
1317                                     struct v4l2_subdev_pad_config *cfg,
1318                                     struct v4l2_subdev_format *fmt)
1319{
1320        struct v4l2_mbus_framefmt *framefmt;
1321        struct v4l2_subdev *sd = &ov13858->sd;
1322
1323        if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
1324                framefmt = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
1325                fmt->format = *framefmt;
1326        } else {
1327                ov13858_update_pad_format(ov13858->cur_mode, fmt);
1328        }
1329
1330        return 0;
1331}
1332
1333static int ov13858_get_pad_format(struct v4l2_subdev *sd,
1334                                  struct v4l2_subdev_pad_config *cfg,
1335                                  struct v4l2_subdev_format *fmt)
1336{
1337        struct ov13858 *ov13858 = to_ov13858(sd);
1338        int ret;
1339
1340        mutex_lock(&ov13858->mutex);
1341        ret = ov13858_do_get_pad_format(ov13858, cfg, fmt);
1342        mutex_unlock(&ov13858->mutex);
1343
1344        return ret;
1345}
1346
1347static int
1348ov13858_set_pad_format(struct v4l2_subdev *sd,
1349                       struct v4l2_subdev_pad_config *cfg,
1350                       struct v4l2_subdev_format *fmt)
1351{
1352        struct ov13858 *ov13858 = to_ov13858(sd);
1353        const struct ov13858_mode *mode;
1354        struct v4l2_mbus_framefmt *framefmt;
1355        s32 vblank_def;
1356        s32 vblank_min;
1357        s64 h_blank;
1358        s64 pixel_rate;
1359        s64 link_freq;
1360
1361        mutex_lock(&ov13858->mutex);
1362
1363        /* Only one raw bayer(GRBG) order is supported */
1364        if (fmt->format.code != MEDIA_BUS_FMT_SGRBG10_1X10)
1365                fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
1366
1367        mode = v4l2_find_nearest_size(supported_modes,
1368                                      ARRAY_SIZE(supported_modes),
1369                                      width, height,
1370                                      fmt->format.width, fmt->format.height);
1371        ov13858_update_pad_format(mode, fmt);
1372        if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
1373                framefmt = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
1374                *framefmt = fmt->format;
1375        } else {
1376                ov13858->cur_mode = mode;
1377                __v4l2_ctrl_s_ctrl(ov13858->link_freq, mode->link_freq_index);
1378                link_freq = link_freq_menu_items[mode->link_freq_index];
1379                pixel_rate = link_freq_to_pixel_rate(link_freq);
1380                __v4l2_ctrl_s_ctrl_int64(ov13858->pixel_rate, pixel_rate);
1381
1382                /* Update limits and set FPS to default */
1383                vblank_def = ov13858->cur_mode->vts_def -
1384                             ov13858->cur_mode->height;
1385                vblank_min = ov13858->cur_mode->vts_min -
1386                             ov13858->cur_mode->height;
1387                __v4l2_ctrl_modify_range(
1388                        ov13858->vblank, vblank_min,
1389                        OV13858_VTS_MAX - ov13858->cur_mode->height, 1,
1390                        vblank_def);
1391                __v4l2_ctrl_s_ctrl(ov13858->vblank, vblank_def);
1392                h_blank =
1393                        link_freq_configs[mode->link_freq_index].pixels_per_line
1394                         - ov13858->cur_mode->width;
1395                __v4l2_ctrl_modify_range(ov13858->hblank, h_blank,
1396                                         h_blank, 1, h_blank);
1397        }
1398
1399        mutex_unlock(&ov13858->mutex);
1400
1401        return 0;
1402}
1403
1404static int ov13858_get_skip_frames(struct v4l2_subdev *sd, u32 *frames)
1405{
1406        *frames = OV13858_NUM_OF_SKIP_FRAMES;
1407
1408        return 0;
1409}
1410
1411/* Start streaming */
1412static int ov13858_start_streaming(struct ov13858 *ov13858)
1413{
1414        struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
1415        const struct ov13858_reg_list *reg_list;
1416        int ret, link_freq_index;
1417
1418        /* Get out of from software reset */
1419        ret = ov13858_write_reg(ov13858, OV13858_REG_SOFTWARE_RST,
1420                                OV13858_REG_VALUE_08BIT, OV13858_SOFTWARE_RST);
1421        if (ret) {
1422                dev_err(&client->dev, "%s failed to set powerup registers\n",
1423                        __func__);
1424                return ret;
1425        }
1426
1427        /* Setup PLL */
1428        link_freq_index = ov13858->cur_mode->link_freq_index;
1429        reg_list = &link_freq_configs[link_freq_index].reg_list;
1430        ret = ov13858_write_reg_list(ov13858, reg_list);
1431        if (ret) {
1432                dev_err(&client->dev, "%s failed to set plls\n", __func__);
1433                return ret;
1434        }
1435
1436        /* Apply default values of current mode */
1437        reg_list = &ov13858->cur_mode->reg_list;
1438        ret = ov13858_write_reg_list(ov13858, reg_list);
1439        if (ret) {
1440                dev_err(&client->dev, "%s failed to set mode\n", __func__);
1441                return ret;
1442        }
1443
1444        /* Apply customized values from user */
1445        ret =  __v4l2_ctrl_handler_setup(ov13858->sd.ctrl_handler);
1446        if (ret)
1447                return ret;
1448
1449        return ov13858_write_reg(ov13858, OV13858_REG_MODE_SELECT,
1450                                 OV13858_REG_VALUE_08BIT,
1451                                 OV13858_MODE_STREAMING);
1452}
1453
1454/* Stop streaming */
1455static int ov13858_stop_streaming(struct ov13858 *ov13858)
1456{
1457        return ov13858_write_reg(ov13858, OV13858_REG_MODE_SELECT,
1458                                 OV13858_REG_VALUE_08BIT, OV13858_MODE_STANDBY);
1459}
1460
1461static int ov13858_set_stream(struct v4l2_subdev *sd, int enable)
1462{
1463        struct ov13858 *ov13858 = to_ov13858(sd);
1464        struct i2c_client *client = v4l2_get_subdevdata(sd);
1465        int ret = 0;
1466
1467        mutex_lock(&ov13858->mutex);
1468        if (ov13858->streaming == enable) {
1469                mutex_unlock(&ov13858->mutex);
1470                return 0;
1471        }
1472
1473        if (enable) {
1474                ret = pm_runtime_get_sync(&client->dev);
1475                if (ret < 0) {
1476                        pm_runtime_put_noidle(&client->dev);
1477                        goto err_unlock;
1478                }
1479
1480                /*
1481                 * Apply default & customized values
1482                 * and then start streaming.
1483                 */
1484                ret = ov13858_start_streaming(ov13858);
1485                if (ret)
1486                        goto err_rpm_put;
1487        } else {
1488                ov13858_stop_streaming(ov13858);
1489                pm_runtime_put(&client->dev);
1490        }
1491
1492        ov13858->streaming = enable;
1493        mutex_unlock(&ov13858->mutex);
1494
1495        return ret;
1496
1497err_rpm_put:
1498        pm_runtime_put(&client->dev);
1499err_unlock:
1500        mutex_unlock(&ov13858->mutex);
1501
1502        return ret;
1503}
1504
1505static int __maybe_unused ov13858_suspend(struct device *dev)
1506{
1507        struct i2c_client *client = to_i2c_client(dev);
1508        struct v4l2_subdev *sd = i2c_get_clientdata(client);
1509        struct ov13858 *ov13858 = to_ov13858(sd);
1510
1511        if (ov13858->streaming)
1512                ov13858_stop_streaming(ov13858);
1513
1514        return 0;
1515}
1516
1517static int __maybe_unused ov13858_resume(struct device *dev)
1518{
1519        struct i2c_client *client = to_i2c_client(dev);
1520        struct v4l2_subdev *sd = i2c_get_clientdata(client);
1521        struct ov13858 *ov13858 = to_ov13858(sd);
1522        int ret;
1523
1524        if (ov13858->streaming) {
1525                ret = ov13858_start_streaming(ov13858);
1526                if (ret)
1527                        goto error;
1528        }
1529
1530        return 0;
1531
1532error:
1533        ov13858_stop_streaming(ov13858);
1534        ov13858->streaming = false;
1535        return ret;
1536}
1537
1538/* Verify chip ID */
1539static int ov13858_identify_module(struct ov13858 *ov13858)
1540{
1541        struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
1542        int ret;
1543        u32 val;
1544
1545        ret = ov13858_read_reg(ov13858, OV13858_REG_CHIP_ID,
1546                               OV13858_REG_VALUE_24BIT, &val);
1547        if (ret)
1548                return ret;
1549
1550        if (val != OV13858_CHIP_ID) {
1551                dev_err(&client->dev, "chip id mismatch: %x!=%x\n",
1552                        OV13858_CHIP_ID, val);
1553                return -EIO;
1554        }
1555
1556        return 0;
1557}
1558
1559static const struct v4l2_subdev_video_ops ov13858_video_ops = {
1560        .s_stream = ov13858_set_stream,
1561};
1562
1563static const struct v4l2_subdev_pad_ops ov13858_pad_ops = {
1564        .enum_mbus_code = ov13858_enum_mbus_code,
1565        .get_fmt = ov13858_get_pad_format,
1566        .set_fmt = ov13858_set_pad_format,
1567        .enum_frame_size = ov13858_enum_frame_size,
1568};
1569
1570static const struct v4l2_subdev_sensor_ops ov13858_sensor_ops = {
1571        .g_skip_frames = ov13858_get_skip_frames,
1572};
1573
1574static const struct v4l2_subdev_ops ov13858_subdev_ops = {
1575        .video = &ov13858_video_ops,
1576        .pad = &ov13858_pad_ops,
1577        .sensor = &ov13858_sensor_ops,
1578};
1579
1580static const struct media_entity_operations ov13858_subdev_entity_ops = {
1581        .link_validate = v4l2_subdev_link_validate,
1582};
1583
1584static const struct v4l2_subdev_internal_ops ov13858_internal_ops = {
1585        .open = ov13858_open,
1586};
1587
1588/* Initialize control handlers */
1589static int ov13858_init_controls(struct ov13858 *ov13858)
1590{
1591        struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
1592        struct v4l2_ctrl_handler *ctrl_hdlr;
1593        s64 exposure_max;
1594        s64 vblank_def;
1595        s64 vblank_min;
1596        s64 hblank;
1597        s64 pixel_rate_min;
1598        s64 pixel_rate_max;
1599        const struct ov13858_mode *mode;
1600        int ret;
1601
1602        ctrl_hdlr = &ov13858->ctrl_handler;
1603        ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8);
1604        if (ret)
1605                return ret;
1606
1607        mutex_init(&ov13858->mutex);
1608        ctrl_hdlr->lock = &ov13858->mutex;
1609        ov13858->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr,
1610                                &ov13858_ctrl_ops,
1611                                V4L2_CID_LINK_FREQ,
1612                                OV13858_NUM_OF_LINK_FREQS - 1,
1613                                0,
1614                                link_freq_menu_items);
1615        if (ov13858->link_freq)
1616                ov13858->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
1617
1618        pixel_rate_max = link_freq_to_pixel_rate(link_freq_menu_items[0]);
1619        pixel_rate_min = link_freq_to_pixel_rate(link_freq_menu_items[1]);
1620        /* By default, PIXEL_RATE is read only */
1621        ov13858->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &ov13858_ctrl_ops,
1622                                                V4L2_CID_PIXEL_RATE,
1623                                                pixel_rate_min, pixel_rate_max,
1624                                                1, pixel_rate_max);
1625
1626        mode = ov13858->cur_mode;
1627        vblank_def = mode->vts_def - mode->height;
1628        vblank_min = mode->vts_min - mode->height;
1629        ov13858->vblank = v4l2_ctrl_new_std(
1630                                ctrl_hdlr, &ov13858_ctrl_ops, V4L2_CID_VBLANK,
1631                                vblank_min, OV13858_VTS_MAX - mode->height, 1,
1632                                vblank_def);
1633
1634        hblank = link_freq_configs[mode->link_freq_index].pixels_per_line -
1635                 mode->width;
1636        ov13858->hblank = v4l2_ctrl_new_std(
1637                                ctrl_hdlr, &ov13858_ctrl_ops, V4L2_CID_HBLANK,
1638                                hblank, hblank, 1, hblank);
1639        if (ov13858->hblank)
1640                ov13858->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
1641
1642        exposure_max = mode->vts_def - 8;
1643        ov13858->exposure = v4l2_ctrl_new_std(
1644                                ctrl_hdlr, &ov13858_ctrl_ops,
1645                                V4L2_CID_EXPOSURE, OV13858_EXPOSURE_MIN,
1646                                exposure_max, OV13858_EXPOSURE_STEP,
1647                                OV13858_EXPOSURE_DEFAULT);
1648
1649        v4l2_ctrl_new_std(ctrl_hdlr, &ov13858_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,
1650                          OV13858_ANA_GAIN_MIN, OV13858_ANA_GAIN_MAX,
1651                          OV13858_ANA_GAIN_STEP, OV13858_ANA_GAIN_DEFAULT);
1652
1653        /* Digital gain */
1654        v4l2_ctrl_new_std(ctrl_hdlr, &ov13858_ctrl_ops, V4L2_CID_DIGITAL_GAIN,
1655                          OV13858_DGTL_GAIN_MIN, OV13858_DGTL_GAIN_MAX,
1656                          OV13858_DGTL_GAIN_STEP, OV13858_DGTL_GAIN_DEFAULT);
1657
1658        v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &ov13858_ctrl_ops,
1659                                     V4L2_CID_TEST_PATTERN,
1660                                     ARRAY_SIZE(ov13858_test_pattern_menu) - 1,
1661                                     0, 0, ov13858_test_pattern_menu);
1662        if (ctrl_hdlr->error) {
1663                ret = ctrl_hdlr->error;
1664                dev_err(&client->dev, "%s control init failed (%d)\n",
1665                        __func__, ret);
1666                goto error;
1667        }
1668
1669        ov13858->sd.ctrl_handler = ctrl_hdlr;
1670
1671        return 0;
1672
1673error:
1674        v4l2_ctrl_handler_free(ctrl_hdlr);
1675        mutex_destroy(&ov13858->mutex);
1676
1677        return ret;
1678}
1679
1680static void ov13858_free_controls(struct ov13858 *ov13858)
1681{
1682        v4l2_ctrl_handler_free(ov13858->sd.ctrl_handler);
1683        mutex_destroy(&ov13858->mutex);
1684}
1685
1686static int ov13858_probe(struct i2c_client *client,
1687                         const struct i2c_device_id *devid)
1688{
1689        struct ov13858 *ov13858;
1690        int ret;
1691        u32 val = 0;
1692
1693        device_property_read_u32(&client->dev, "clock-frequency", &val);
1694        if (val != 19200000)
1695                return -EINVAL;
1696
1697        ov13858 = devm_kzalloc(&client->dev, sizeof(*ov13858), GFP_KERNEL);
1698        if (!ov13858)
1699                return -ENOMEM;
1700
1701        /* Initialize subdev */
1702        v4l2_i2c_subdev_init(&ov13858->sd, client, &ov13858_subdev_ops);
1703
1704        /* Check module identity */
1705        ret = ov13858_identify_module(ov13858);
1706        if (ret) {
1707                dev_err(&client->dev, "failed to find sensor: %d\n", ret);
1708                return ret;
1709        }
1710
1711        /* Set default mode to max resolution */
1712        ov13858->cur_mode = &supported_modes[0];
1713
1714        ret = ov13858_init_controls(ov13858);
1715        if (ret)
1716                return ret;
1717
1718        /* Initialize subdev */
1719        ov13858->sd.internal_ops = &ov13858_internal_ops;
1720        ov13858->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
1721        ov13858->sd.entity.ops = &ov13858_subdev_entity_ops;
1722        ov13858->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
1723
1724        /* Initialize source pad */
1725        ov13858->pad.flags = MEDIA_PAD_FL_SOURCE;
1726        ret = media_entity_pads_init(&ov13858->sd.entity, 1, &ov13858->pad);
1727        if (ret) {
1728                dev_err(&client->dev, "%s failed:%d\n", __func__, ret);
1729                goto error_handler_free;
1730        }
1731
1732        ret = v4l2_async_register_subdev_sensor_common(&ov13858->sd);
1733        if (ret < 0)
1734                goto error_media_entity;
1735
1736        /*
1737         * Device is already turned on by i2c-core with ACPI domain PM.
1738         * Enable runtime PM and turn off the device.
1739         */
1740        pm_runtime_set_active(&client->dev);
1741        pm_runtime_enable(&client->dev);
1742        pm_runtime_idle(&client->dev);
1743
1744        return 0;
1745
1746error_media_entity:
1747        media_entity_cleanup(&ov13858->sd.entity);
1748
1749error_handler_free:
1750        ov13858_free_controls(ov13858);
1751        dev_err(&client->dev, "%s failed:%d\n", __func__, ret);
1752
1753        return ret;
1754}
1755
1756static int ov13858_remove(struct i2c_client *client)
1757{
1758        struct v4l2_subdev *sd = i2c_get_clientdata(client);
1759        struct ov13858 *ov13858 = to_ov13858(sd);
1760
1761        v4l2_async_unregister_subdev(sd);
1762        media_entity_cleanup(&sd->entity);
1763        ov13858_free_controls(ov13858);
1764
1765        pm_runtime_disable(&client->dev);
1766
1767        return 0;
1768}
1769
1770static const struct i2c_device_id ov13858_id_table[] = {
1771        {"ov13858", 0},
1772        {},
1773};
1774
1775MODULE_DEVICE_TABLE(i2c, ov13858_id_table);
1776
1777static const struct dev_pm_ops ov13858_pm_ops = {
1778        SET_SYSTEM_SLEEP_PM_OPS(ov13858_suspend, ov13858_resume)
1779};
1780
1781#ifdef CONFIG_ACPI
1782static const struct acpi_device_id ov13858_acpi_ids[] = {
1783        {"OVTID858"},
1784        { /* sentinel */ }
1785};
1786
1787MODULE_DEVICE_TABLE(acpi, ov13858_acpi_ids);
1788#endif
1789
1790static struct i2c_driver ov13858_i2c_driver = {
1791        .driver = {
1792                .name = "ov13858",
1793                .pm = &ov13858_pm_ops,
1794                .acpi_match_table = ACPI_PTR(ov13858_acpi_ids),
1795        },
1796        .probe = ov13858_probe,
1797        .remove = ov13858_remove,
1798        .id_table = ov13858_id_table,
1799};
1800
1801module_i2c_driver(ov13858_i2c_driver);
1802
1803MODULE_AUTHOR("Kan, Chris <chris.kan@intel.com>");
1804MODULE_AUTHOR("Rapolu, Chiranjeevi <chiranjeevi.rapolu@intel.com>");
1805MODULE_AUTHOR("Yang, Hyungwoo <hyungwoo.yang@intel.com>");
1806MODULE_DESCRIPTION("Omnivision ov13858 sensor driver");
1807MODULE_LICENSE("GPL v2");
1808