linux/drivers/media/i2c/adv7180.c
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   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * adv7180.c Analog Devices ADV7180 video decoder driver
   4 * Copyright (c) 2009 Intel Corporation
   5 * Copyright (C) 2013 Cogent Embedded, Inc.
   6 * Copyright (C) 2013 Renesas Solutions Corp.
   7 */
   8#include <linux/module.h>
   9#include <linux/init.h>
  10#include <linux/errno.h>
  11#include <linux/kernel.h>
  12#include <linux/interrupt.h>
  13#include <linux/i2c.h>
  14#include <linux/slab.h>
  15#include <linux/of.h>
  16#include <linux/gpio/consumer.h>
  17#include <linux/videodev2.h>
  18#include <media/v4l2-ioctl.h>
  19#include <media/v4l2-event.h>
  20#include <media/v4l2-device.h>
  21#include <media/v4l2-ctrls.h>
  22#include <linux/mutex.h>
  23#include <linux/delay.h>
  24
  25#define ADV7180_STD_AD_PAL_BG_NTSC_J_SECAM              0x0
  26#define ADV7180_STD_AD_PAL_BG_NTSC_J_SECAM_PED          0x1
  27#define ADV7180_STD_AD_PAL_N_NTSC_J_SECAM               0x2
  28#define ADV7180_STD_AD_PAL_N_NTSC_M_SECAM               0x3
  29#define ADV7180_STD_NTSC_J                              0x4
  30#define ADV7180_STD_NTSC_M                              0x5
  31#define ADV7180_STD_PAL60                               0x6
  32#define ADV7180_STD_NTSC_443                            0x7
  33#define ADV7180_STD_PAL_BG                              0x8
  34#define ADV7180_STD_PAL_N                               0x9
  35#define ADV7180_STD_PAL_M                               0xa
  36#define ADV7180_STD_PAL_M_PED                           0xb
  37#define ADV7180_STD_PAL_COMB_N                          0xc
  38#define ADV7180_STD_PAL_COMB_N_PED                      0xd
  39#define ADV7180_STD_PAL_SECAM                           0xe
  40#define ADV7180_STD_PAL_SECAM_PED                       0xf
  41
  42#define ADV7180_REG_INPUT_CONTROL                       0x0000
  43#define ADV7180_INPUT_CONTROL_INSEL_MASK                0x0f
  44
  45#define ADV7182_REG_INPUT_VIDSEL                        0x0002
  46
  47#define ADV7180_REG_OUTPUT_CONTROL                      0x0003
  48#define ADV7180_REG_EXTENDED_OUTPUT_CONTROL             0x0004
  49#define ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS         0xC5
  50
  51#define ADV7180_REG_AUTODETECT_ENABLE                   0x0007
  52#define ADV7180_AUTODETECT_DEFAULT                      0x7f
  53/* Contrast */
  54#define ADV7180_REG_CON         0x0008  /*Unsigned */
  55#define ADV7180_CON_MIN         0
  56#define ADV7180_CON_DEF         128
  57#define ADV7180_CON_MAX         255
  58/* Brightness*/
  59#define ADV7180_REG_BRI         0x000a  /*Signed */
  60#define ADV7180_BRI_MIN         -128
  61#define ADV7180_BRI_DEF         0
  62#define ADV7180_BRI_MAX         127
  63/* Hue */
  64#define ADV7180_REG_HUE         0x000b  /*Signed, inverted */
  65#define ADV7180_HUE_MIN         -127
  66#define ADV7180_HUE_DEF         0
  67#define ADV7180_HUE_MAX         128
  68
  69#define ADV7180_REG_CTRL                0x000e
  70#define ADV7180_CTRL_IRQ_SPACE          0x20
  71
  72#define ADV7180_REG_PWR_MAN             0x0f
  73#define ADV7180_PWR_MAN_ON              0x04
  74#define ADV7180_PWR_MAN_OFF             0x24
  75#define ADV7180_PWR_MAN_RES             0x80
  76
  77#define ADV7180_REG_STATUS1             0x0010
  78#define ADV7180_STATUS1_IN_LOCK         0x01
  79#define ADV7180_STATUS1_AUTOD_MASK      0x70
  80#define ADV7180_STATUS1_AUTOD_NTSM_M_J  0x00
  81#define ADV7180_STATUS1_AUTOD_NTSC_4_43 0x10
  82#define ADV7180_STATUS1_AUTOD_PAL_M     0x20
  83#define ADV7180_STATUS1_AUTOD_PAL_60    0x30
  84#define ADV7180_STATUS1_AUTOD_PAL_B_G   0x40
  85#define ADV7180_STATUS1_AUTOD_SECAM     0x50
  86#define ADV7180_STATUS1_AUTOD_PAL_COMB  0x60
  87#define ADV7180_STATUS1_AUTOD_SECAM_525 0x70
  88
  89#define ADV7180_REG_IDENT 0x0011
  90#define ADV7180_ID_7180 0x18
  91
  92#define ADV7180_REG_STATUS3             0x0013
  93#define ADV7180_REG_ANALOG_CLAMP_CTL    0x0014
  94#define ADV7180_REG_SHAP_FILTER_CTL_1   0x0017
  95#define ADV7180_REG_CTRL_2              0x001d
  96#define ADV7180_REG_VSYNC_FIELD_CTL_1   0x0031
  97#define ADV7180_REG_MANUAL_WIN_CTL_1    0x003d
  98#define ADV7180_REG_MANUAL_WIN_CTL_2    0x003e
  99#define ADV7180_REG_MANUAL_WIN_CTL_3    0x003f
 100#define ADV7180_REG_LOCK_CNT            0x0051
 101#define ADV7180_REG_CVBS_TRIM           0x0052
 102#define ADV7180_REG_CLAMP_ADJ           0x005a
 103#define ADV7180_REG_RES_CIR             0x005f
 104#define ADV7180_REG_DIFF_MODE           0x0060
 105
 106#define ADV7180_REG_ICONF1              0x2040
 107#define ADV7180_ICONF1_ACTIVE_LOW       0x01
 108#define ADV7180_ICONF1_PSYNC_ONLY       0x10
 109#define ADV7180_ICONF1_ACTIVE_TO_CLR    0xC0
 110/* Saturation */
 111#define ADV7180_REG_SD_SAT_CB   0x00e3  /*Unsigned */
 112#define ADV7180_REG_SD_SAT_CR   0x00e4  /*Unsigned */
 113#define ADV7180_SAT_MIN         0
 114#define ADV7180_SAT_DEF         128
 115#define ADV7180_SAT_MAX         255
 116
 117#define ADV7180_IRQ1_LOCK       0x01
 118#define ADV7180_IRQ1_UNLOCK     0x02
 119#define ADV7180_REG_ISR1        0x2042
 120#define ADV7180_REG_ICR1        0x2043
 121#define ADV7180_REG_IMR1        0x2044
 122#define ADV7180_REG_IMR2        0x2048
 123#define ADV7180_IRQ3_AD_CHANGE  0x08
 124#define ADV7180_REG_ISR3        0x204A
 125#define ADV7180_REG_ICR3        0x204B
 126#define ADV7180_REG_IMR3        0x204C
 127#define ADV7180_REG_IMR4        0x2050
 128
 129#define ADV7180_REG_NTSC_V_BIT_END      0x00E6
 130#define ADV7180_NTSC_V_BIT_END_MANUAL_NVEND     0x4F
 131
 132#define ADV7180_REG_VPP_SLAVE_ADDR      0xFD
 133#define ADV7180_REG_CSI_SLAVE_ADDR      0xFE
 134
 135#define ADV7180_REG_ACE_CTRL1           0x4080
 136#define ADV7180_REG_ACE_CTRL5           0x4084
 137#define ADV7180_REG_FLCONTROL           0x40e0
 138#define ADV7180_FLCONTROL_FL_ENABLE 0x1
 139
 140#define ADV7180_REG_RST_CLAMP   0x809c
 141#define ADV7180_REG_AGC_ADJ1    0x80b6
 142#define ADV7180_REG_AGC_ADJ2    0x80c0
 143
 144#define ADV7180_CSI_REG_PWRDN   0x00
 145#define ADV7180_CSI_PWRDN       0x80
 146
 147#define ADV7180_INPUT_CVBS_AIN1 0x00
 148#define ADV7180_INPUT_CVBS_AIN2 0x01
 149#define ADV7180_INPUT_CVBS_AIN3 0x02
 150#define ADV7180_INPUT_CVBS_AIN4 0x03
 151#define ADV7180_INPUT_CVBS_AIN5 0x04
 152#define ADV7180_INPUT_CVBS_AIN6 0x05
 153#define ADV7180_INPUT_SVIDEO_AIN1_AIN2 0x06
 154#define ADV7180_INPUT_SVIDEO_AIN3_AIN4 0x07
 155#define ADV7180_INPUT_SVIDEO_AIN5_AIN6 0x08
 156#define ADV7180_INPUT_YPRPB_AIN1_AIN2_AIN3 0x09
 157#define ADV7180_INPUT_YPRPB_AIN4_AIN5_AIN6 0x0a
 158
 159#define ADV7182_INPUT_CVBS_AIN1 0x00
 160#define ADV7182_INPUT_CVBS_AIN2 0x01
 161#define ADV7182_INPUT_CVBS_AIN3 0x02
 162#define ADV7182_INPUT_CVBS_AIN4 0x03
 163#define ADV7182_INPUT_CVBS_AIN5 0x04
 164#define ADV7182_INPUT_CVBS_AIN6 0x05
 165#define ADV7182_INPUT_CVBS_AIN7 0x06
 166#define ADV7182_INPUT_CVBS_AIN8 0x07
 167#define ADV7182_INPUT_SVIDEO_AIN1_AIN2 0x08
 168#define ADV7182_INPUT_SVIDEO_AIN3_AIN4 0x09
 169#define ADV7182_INPUT_SVIDEO_AIN5_AIN6 0x0a
 170#define ADV7182_INPUT_SVIDEO_AIN7_AIN8 0x0b
 171#define ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3 0x0c
 172#define ADV7182_INPUT_YPRPB_AIN4_AIN5_AIN6 0x0d
 173#define ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2 0x0e
 174#define ADV7182_INPUT_DIFF_CVBS_AIN3_AIN4 0x0f
 175#define ADV7182_INPUT_DIFF_CVBS_AIN5_AIN6 0x10
 176#define ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8 0x11
 177
 178#define ADV7180_DEFAULT_CSI_I2C_ADDR 0x44
 179#define ADV7180_DEFAULT_VPP_I2C_ADDR 0x42
 180
 181#define V4L2_CID_ADV_FAST_SWITCH        (V4L2_CID_USER_ADV7180_BASE + 0x00)
 182
 183/* Initial number of frames to skip to avoid possible garbage */
 184#define ADV7180_NUM_OF_SKIP_FRAMES       2
 185
 186struct adv7180_state;
 187
 188#define ADV7180_FLAG_RESET_POWERED      BIT(0)
 189#define ADV7180_FLAG_V2                 BIT(1)
 190#define ADV7180_FLAG_MIPI_CSI2          BIT(2)
 191#define ADV7180_FLAG_I2P                BIT(3)
 192
 193struct adv7180_chip_info {
 194        unsigned int flags;
 195        unsigned int valid_input_mask;
 196        int (*set_std)(struct adv7180_state *st, unsigned int std);
 197        int (*select_input)(struct adv7180_state *st, unsigned int input);
 198        int (*init)(struct adv7180_state *state);
 199};
 200
 201struct adv7180_state {
 202        struct v4l2_ctrl_handler ctrl_hdl;
 203        struct v4l2_subdev      sd;
 204        struct media_pad        pad;
 205        struct mutex            mutex; /* mutual excl. when accessing chip */
 206        int                     irq;
 207        struct gpio_desc        *pwdn_gpio;
 208        v4l2_std_id             curr_norm;
 209        bool                    powered;
 210        bool                    streaming;
 211        u8                      input;
 212
 213        struct i2c_client       *client;
 214        unsigned int            register_page;
 215        struct i2c_client       *csi_client;
 216        struct i2c_client       *vpp_client;
 217        const struct adv7180_chip_info *chip_info;
 218        enum v4l2_field         field;
 219};
 220#define to_adv7180_sd(_ctrl) (&container_of(_ctrl->handler,             \
 221                                            struct adv7180_state,       \
 222                                            ctrl_hdl)->sd)
 223
 224static int adv7180_select_page(struct adv7180_state *state, unsigned int page)
 225{
 226        if (state->register_page != page) {
 227                i2c_smbus_write_byte_data(state->client, ADV7180_REG_CTRL,
 228                        page);
 229                state->register_page = page;
 230        }
 231
 232        return 0;
 233}
 234
 235static int adv7180_write(struct adv7180_state *state, unsigned int reg,
 236        unsigned int value)
 237{
 238        lockdep_assert_held(&state->mutex);
 239        adv7180_select_page(state, reg >> 8);
 240        return i2c_smbus_write_byte_data(state->client, reg & 0xff, value);
 241}
 242
 243static int adv7180_read(struct adv7180_state *state, unsigned int reg)
 244{
 245        lockdep_assert_held(&state->mutex);
 246        adv7180_select_page(state, reg >> 8);
 247        return i2c_smbus_read_byte_data(state->client, reg & 0xff);
 248}
 249
 250static int adv7180_csi_write(struct adv7180_state *state, unsigned int reg,
 251        unsigned int value)
 252{
 253        return i2c_smbus_write_byte_data(state->csi_client, reg, value);
 254}
 255
 256static int adv7180_set_video_standard(struct adv7180_state *state,
 257        unsigned int std)
 258{
 259        return state->chip_info->set_std(state, std);
 260}
 261
 262static int adv7180_vpp_write(struct adv7180_state *state, unsigned int reg,
 263        unsigned int value)
 264{
 265        return i2c_smbus_write_byte_data(state->vpp_client, reg, value);
 266}
 267
 268static v4l2_std_id adv7180_std_to_v4l2(u8 status1)
 269{
 270        /* in case V4L2_IN_ST_NO_SIGNAL */
 271        if (!(status1 & ADV7180_STATUS1_IN_LOCK))
 272                return V4L2_STD_UNKNOWN;
 273
 274        switch (status1 & ADV7180_STATUS1_AUTOD_MASK) {
 275        case ADV7180_STATUS1_AUTOD_NTSM_M_J:
 276                return V4L2_STD_NTSC;
 277        case ADV7180_STATUS1_AUTOD_NTSC_4_43:
 278                return V4L2_STD_NTSC_443;
 279        case ADV7180_STATUS1_AUTOD_PAL_M:
 280                return V4L2_STD_PAL_M;
 281        case ADV7180_STATUS1_AUTOD_PAL_60:
 282                return V4L2_STD_PAL_60;
 283        case ADV7180_STATUS1_AUTOD_PAL_B_G:
 284                return V4L2_STD_PAL;
 285        case ADV7180_STATUS1_AUTOD_SECAM:
 286                return V4L2_STD_SECAM;
 287        case ADV7180_STATUS1_AUTOD_PAL_COMB:
 288                return V4L2_STD_PAL_Nc | V4L2_STD_PAL_N;
 289        case ADV7180_STATUS1_AUTOD_SECAM_525:
 290                return V4L2_STD_SECAM;
 291        default:
 292                return V4L2_STD_UNKNOWN;
 293        }
 294}
 295
 296static int v4l2_std_to_adv7180(v4l2_std_id std)
 297{
 298        if (std == V4L2_STD_PAL_60)
 299                return ADV7180_STD_PAL60;
 300        if (std == V4L2_STD_NTSC_443)
 301                return ADV7180_STD_NTSC_443;
 302        if (std == V4L2_STD_PAL_N)
 303                return ADV7180_STD_PAL_N;
 304        if (std == V4L2_STD_PAL_M)
 305                return ADV7180_STD_PAL_M;
 306        if (std == V4L2_STD_PAL_Nc)
 307                return ADV7180_STD_PAL_COMB_N;
 308
 309        if (std & V4L2_STD_PAL)
 310                return ADV7180_STD_PAL_BG;
 311        if (std & V4L2_STD_NTSC)
 312                return ADV7180_STD_NTSC_M;
 313        if (std & V4L2_STD_SECAM)
 314                return ADV7180_STD_PAL_SECAM;
 315
 316        return -EINVAL;
 317}
 318
 319static u32 adv7180_status_to_v4l2(u8 status1)
 320{
 321        if (!(status1 & ADV7180_STATUS1_IN_LOCK))
 322                return V4L2_IN_ST_NO_SIGNAL;
 323
 324        return 0;
 325}
 326
 327static int __adv7180_status(struct adv7180_state *state, u32 *status,
 328                            v4l2_std_id *std)
 329{
 330        int status1 = adv7180_read(state, ADV7180_REG_STATUS1);
 331
 332        if (status1 < 0)
 333                return status1;
 334
 335        if (status)
 336                *status = adv7180_status_to_v4l2(status1);
 337        if (std)
 338                *std = adv7180_std_to_v4l2(status1);
 339
 340        return 0;
 341}
 342
 343static inline struct adv7180_state *to_state(struct v4l2_subdev *sd)
 344{
 345        return container_of(sd, struct adv7180_state, sd);
 346}
 347
 348static int adv7180_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
 349{
 350        struct adv7180_state *state = to_state(sd);
 351        int err = mutex_lock_interruptible(&state->mutex);
 352        if (err)
 353                return err;
 354
 355        if (state->streaming) {
 356                err = -EBUSY;
 357                goto unlock;
 358        }
 359
 360        err = adv7180_set_video_standard(state,
 361                        ADV7180_STD_AD_PAL_BG_NTSC_J_SECAM);
 362        if (err)
 363                goto unlock;
 364
 365        msleep(100);
 366        __adv7180_status(state, NULL, std);
 367
 368        err = v4l2_std_to_adv7180(state->curr_norm);
 369        if (err < 0)
 370                goto unlock;
 371
 372        err = adv7180_set_video_standard(state, err);
 373
 374unlock:
 375        mutex_unlock(&state->mutex);
 376        return err;
 377}
 378
 379static int adv7180_s_routing(struct v4l2_subdev *sd, u32 input,
 380                             u32 output, u32 config)
 381{
 382        struct adv7180_state *state = to_state(sd);
 383        int ret = mutex_lock_interruptible(&state->mutex);
 384
 385        if (ret)
 386                return ret;
 387
 388        if (input > 31 || !(BIT(input) & state->chip_info->valid_input_mask)) {
 389                ret = -EINVAL;
 390                goto out;
 391        }
 392
 393        ret = state->chip_info->select_input(state, input);
 394
 395        if (ret == 0)
 396                state->input = input;
 397out:
 398        mutex_unlock(&state->mutex);
 399        return ret;
 400}
 401
 402static int adv7180_g_input_status(struct v4l2_subdev *sd, u32 *status)
 403{
 404        struct adv7180_state *state = to_state(sd);
 405        int ret = mutex_lock_interruptible(&state->mutex);
 406        if (ret)
 407                return ret;
 408
 409        ret = __adv7180_status(state, status, NULL);
 410        mutex_unlock(&state->mutex);
 411        return ret;
 412}
 413
 414static int adv7180_program_std(struct adv7180_state *state)
 415{
 416        int ret;
 417
 418        ret = v4l2_std_to_adv7180(state->curr_norm);
 419        if (ret < 0)
 420                return ret;
 421
 422        ret = adv7180_set_video_standard(state, ret);
 423        if (ret < 0)
 424                return ret;
 425        return 0;
 426}
 427
 428static int adv7180_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
 429{
 430        struct adv7180_state *state = to_state(sd);
 431        int ret = mutex_lock_interruptible(&state->mutex);
 432
 433        if (ret)
 434                return ret;
 435
 436        /* Make sure we can support this std */
 437        ret = v4l2_std_to_adv7180(std);
 438        if (ret < 0)
 439                goto out;
 440
 441        state->curr_norm = std;
 442
 443        ret = adv7180_program_std(state);
 444out:
 445        mutex_unlock(&state->mutex);
 446        return ret;
 447}
 448
 449static int adv7180_g_std(struct v4l2_subdev *sd, v4l2_std_id *norm)
 450{
 451        struct adv7180_state *state = to_state(sd);
 452
 453        *norm = state->curr_norm;
 454
 455        return 0;
 456}
 457
 458static int adv7180_g_frame_interval(struct v4l2_subdev *sd,
 459                                    struct v4l2_subdev_frame_interval *fi)
 460{
 461        struct adv7180_state *state = to_state(sd);
 462
 463        if (state->curr_norm & V4L2_STD_525_60) {
 464                fi->interval.numerator = 1001;
 465                fi->interval.denominator = 30000;
 466        } else {
 467                fi->interval.numerator = 1;
 468                fi->interval.denominator = 25;
 469        }
 470
 471        return 0;
 472}
 473
 474static void adv7180_set_power_pin(struct adv7180_state *state, bool on)
 475{
 476        if (!state->pwdn_gpio)
 477                return;
 478
 479        if (on) {
 480                gpiod_set_value_cansleep(state->pwdn_gpio, 0);
 481                usleep_range(5000, 10000);
 482        } else {
 483                gpiod_set_value_cansleep(state->pwdn_gpio, 1);
 484        }
 485}
 486
 487static int adv7180_set_power(struct adv7180_state *state, bool on)
 488{
 489        u8 val;
 490        int ret;
 491
 492        if (on)
 493                val = ADV7180_PWR_MAN_ON;
 494        else
 495                val = ADV7180_PWR_MAN_OFF;
 496
 497        ret = adv7180_write(state, ADV7180_REG_PWR_MAN, val);
 498        if (ret)
 499                return ret;
 500
 501        if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) {
 502                if (on) {
 503                        adv7180_csi_write(state, 0xDE, 0x02);
 504                        adv7180_csi_write(state, 0xD2, 0xF7);
 505                        adv7180_csi_write(state, 0xD8, 0x65);
 506                        adv7180_csi_write(state, 0xE0, 0x09);
 507                        adv7180_csi_write(state, 0x2C, 0x00);
 508                        if (state->field == V4L2_FIELD_NONE)
 509                                adv7180_csi_write(state, 0x1D, 0x80);
 510                        adv7180_csi_write(state, 0x00, 0x00);
 511                } else {
 512                        adv7180_csi_write(state, 0x00, 0x80);
 513                }
 514        }
 515
 516        return 0;
 517}
 518
 519static int adv7180_s_power(struct v4l2_subdev *sd, int on)
 520{
 521        struct adv7180_state *state = to_state(sd);
 522        int ret;
 523
 524        ret = mutex_lock_interruptible(&state->mutex);
 525        if (ret)
 526                return ret;
 527
 528        ret = adv7180_set_power(state, on);
 529        if (ret == 0)
 530                state->powered = on;
 531
 532        mutex_unlock(&state->mutex);
 533        return ret;
 534}
 535
 536static int adv7180_s_ctrl(struct v4l2_ctrl *ctrl)
 537{
 538        struct v4l2_subdev *sd = to_adv7180_sd(ctrl);
 539        struct adv7180_state *state = to_state(sd);
 540        int ret = mutex_lock_interruptible(&state->mutex);
 541        int val;
 542
 543        if (ret)
 544                return ret;
 545        val = ctrl->val;
 546        switch (ctrl->id) {
 547        case V4L2_CID_BRIGHTNESS:
 548                ret = adv7180_write(state, ADV7180_REG_BRI, val);
 549                break;
 550        case V4L2_CID_HUE:
 551                /*Hue is inverted according to HSL chart */
 552                ret = adv7180_write(state, ADV7180_REG_HUE, -val);
 553                break;
 554        case V4L2_CID_CONTRAST:
 555                ret = adv7180_write(state, ADV7180_REG_CON, val);
 556                break;
 557        case V4L2_CID_SATURATION:
 558                /*
 559                 *This could be V4L2_CID_BLUE_BALANCE/V4L2_CID_RED_BALANCE
 560                 *Let's not confuse the user, everybody understands saturation
 561                 */
 562                ret = adv7180_write(state, ADV7180_REG_SD_SAT_CB, val);
 563                if (ret < 0)
 564                        break;
 565                ret = adv7180_write(state, ADV7180_REG_SD_SAT_CR, val);
 566                break;
 567        case V4L2_CID_ADV_FAST_SWITCH:
 568                if (ctrl->val) {
 569                        /* ADI required write */
 570                        adv7180_write(state, 0x80d9, 0x44);
 571                        adv7180_write(state, ADV7180_REG_FLCONTROL,
 572                                ADV7180_FLCONTROL_FL_ENABLE);
 573                } else {
 574                        /* ADI required write */
 575                        adv7180_write(state, 0x80d9, 0xc4);
 576                        adv7180_write(state, ADV7180_REG_FLCONTROL, 0x00);
 577                }
 578                break;
 579        default:
 580                ret = -EINVAL;
 581        }
 582
 583        mutex_unlock(&state->mutex);
 584        return ret;
 585}
 586
 587static const struct v4l2_ctrl_ops adv7180_ctrl_ops = {
 588        .s_ctrl = adv7180_s_ctrl,
 589};
 590
 591static const struct v4l2_ctrl_config adv7180_ctrl_fast_switch = {
 592        .ops = &adv7180_ctrl_ops,
 593        .id = V4L2_CID_ADV_FAST_SWITCH,
 594        .name = "Fast Switching",
 595        .type = V4L2_CTRL_TYPE_BOOLEAN,
 596        .min = 0,
 597        .max = 1,
 598        .step = 1,
 599};
 600
 601static int adv7180_init_controls(struct adv7180_state *state)
 602{
 603        v4l2_ctrl_handler_init(&state->ctrl_hdl, 4);
 604
 605        v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
 606                          V4L2_CID_BRIGHTNESS, ADV7180_BRI_MIN,
 607                          ADV7180_BRI_MAX, 1, ADV7180_BRI_DEF);
 608        v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
 609                          V4L2_CID_CONTRAST, ADV7180_CON_MIN,
 610                          ADV7180_CON_MAX, 1, ADV7180_CON_DEF);
 611        v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
 612                          V4L2_CID_SATURATION, ADV7180_SAT_MIN,
 613                          ADV7180_SAT_MAX, 1, ADV7180_SAT_DEF);
 614        v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
 615                          V4L2_CID_HUE, ADV7180_HUE_MIN,
 616                          ADV7180_HUE_MAX, 1, ADV7180_HUE_DEF);
 617        v4l2_ctrl_new_custom(&state->ctrl_hdl, &adv7180_ctrl_fast_switch, NULL);
 618
 619        state->sd.ctrl_handler = &state->ctrl_hdl;
 620        if (state->ctrl_hdl.error) {
 621                int err = state->ctrl_hdl.error;
 622
 623                v4l2_ctrl_handler_free(&state->ctrl_hdl);
 624                return err;
 625        }
 626        v4l2_ctrl_handler_setup(&state->ctrl_hdl);
 627
 628        return 0;
 629}
 630static void adv7180_exit_controls(struct adv7180_state *state)
 631{
 632        v4l2_ctrl_handler_free(&state->ctrl_hdl);
 633}
 634
 635static int adv7180_enum_mbus_code(struct v4l2_subdev *sd,
 636                                  struct v4l2_subdev_pad_config *cfg,
 637                                  struct v4l2_subdev_mbus_code_enum *code)
 638{
 639        if (code->index != 0)
 640                return -EINVAL;
 641
 642        code->code = MEDIA_BUS_FMT_UYVY8_2X8;
 643
 644        return 0;
 645}
 646
 647static int adv7180_mbus_fmt(struct v4l2_subdev *sd,
 648                            struct v4l2_mbus_framefmt *fmt)
 649{
 650        struct adv7180_state *state = to_state(sd);
 651
 652        fmt->code = MEDIA_BUS_FMT_UYVY8_2X8;
 653        fmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
 654        fmt->width = 720;
 655        fmt->height = state->curr_norm & V4L2_STD_525_60 ? 480 : 576;
 656
 657        if (state->field == V4L2_FIELD_ALTERNATE)
 658                fmt->height /= 2;
 659
 660        return 0;
 661}
 662
 663static int adv7180_set_field_mode(struct adv7180_state *state)
 664{
 665        if (!(state->chip_info->flags & ADV7180_FLAG_I2P))
 666                return 0;
 667
 668        if (state->field == V4L2_FIELD_NONE) {
 669                if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) {
 670                        adv7180_csi_write(state, 0x01, 0x20);
 671                        adv7180_csi_write(state, 0x02, 0x28);
 672                        adv7180_csi_write(state, 0x03, 0x38);
 673                        adv7180_csi_write(state, 0x04, 0x30);
 674                        adv7180_csi_write(state, 0x05, 0x30);
 675                        adv7180_csi_write(state, 0x06, 0x80);
 676                        adv7180_csi_write(state, 0x07, 0x70);
 677                        adv7180_csi_write(state, 0x08, 0x50);
 678                }
 679                adv7180_vpp_write(state, 0xa3, 0x00);
 680                adv7180_vpp_write(state, 0x5b, 0x00);
 681                adv7180_vpp_write(state, 0x55, 0x80);
 682        } else {
 683                if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) {
 684                        adv7180_csi_write(state, 0x01, 0x18);
 685                        adv7180_csi_write(state, 0x02, 0x18);
 686                        adv7180_csi_write(state, 0x03, 0x30);
 687                        adv7180_csi_write(state, 0x04, 0x20);
 688                        adv7180_csi_write(state, 0x05, 0x28);
 689                        adv7180_csi_write(state, 0x06, 0x40);
 690                        adv7180_csi_write(state, 0x07, 0x58);
 691                        adv7180_csi_write(state, 0x08, 0x30);
 692                }
 693                adv7180_vpp_write(state, 0xa3, 0x70);
 694                adv7180_vpp_write(state, 0x5b, 0x80);
 695                adv7180_vpp_write(state, 0x55, 0x00);
 696        }
 697
 698        return 0;
 699}
 700
 701static int adv7180_get_pad_format(struct v4l2_subdev *sd,
 702                                  struct v4l2_subdev_pad_config *cfg,
 703                                  struct v4l2_subdev_format *format)
 704{
 705        struct adv7180_state *state = to_state(sd);
 706
 707        if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
 708                format->format = *v4l2_subdev_get_try_format(sd, cfg, 0);
 709        } else {
 710                adv7180_mbus_fmt(sd, &format->format);
 711                format->format.field = state->field;
 712        }
 713
 714        return 0;
 715}
 716
 717static int adv7180_set_pad_format(struct v4l2_subdev *sd,
 718                                  struct v4l2_subdev_pad_config *cfg,
 719                                  struct v4l2_subdev_format *format)
 720{
 721        struct adv7180_state *state = to_state(sd);
 722        struct v4l2_mbus_framefmt *framefmt;
 723        int ret;
 724
 725        switch (format->format.field) {
 726        case V4L2_FIELD_NONE:
 727                if (state->chip_info->flags & ADV7180_FLAG_I2P)
 728                        break;
 729                /* fall through */
 730        default:
 731                format->format.field = V4L2_FIELD_ALTERNATE;
 732                break;
 733        }
 734
 735        ret = adv7180_mbus_fmt(sd,  &format->format);
 736
 737        if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
 738                if (state->field != format->format.field) {
 739                        state->field = format->format.field;
 740                        adv7180_set_power(state, false);
 741                        adv7180_set_field_mode(state);
 742                        adv7180_set_power(state, true);
 743                }
 744        } else {
 745                framefmt = v4l2_subdev_get_try_format(sd, cfg, 0);
 746                *framefmt = format->format;
 747        }
 748
 749        return ret;
 750}
 751
 752static int adv7180_g_mbus_config(struct v4l2_subdev *sd,
 753                                 struct v4l2_mbus_config *cfg)
 754{
 755        struct adv7180_state *state = to_state(sd);
 756
 757        if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) {
 758                cfg->type = V4L2_MBUS_CSI2_DPHY;
 759                cfg->flags = V4L2_MBUS_CSI2_1_LANE |
 760                                V4L2_MBUS_CSI2_CHANNEL_0 |
 761                                V4L2_MBUS_CSI2_CONTINUOUS_CLOCK;
 762        } else {
 763                /*
 764                 * The ADV7180 sensor supports BT.601/656 output modes.
 765                 * The BT.656 is default and not yet configurable by s/w.
 766                 */
 767                cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_PCLK_SAMPLE_RISING |
 768                                 V4L2_MBUS_DATA_ACTIVE_HIGH;
 769                cfg->type = V4L2_MBUS_BT656;
 770        }
 771
 772        return 0;
 773}
 774
 775static int adv7180_get_skip_frames(struct v4l2_subdev *sd, u32 *frames)
 776{
 777        *frames = ADV7180_NUM_OF_SKIP_FRAMES;
 778
 779        return 0;
 780}
 781
 782static int adv7180_g_pixelaspect(struct v4l2_subdev *sd, struct v4l2_fract *aspect)
 783{
 784        struct adv7180_state *state = to_state(sd);
 785
 786        if (state->curr_norm & V4L2_STD_525_60) {
 787                aspect->numerator = 11;
 788                aspect->denominator = 10;
 789        } else {
 790                aspect->numerator = 54;
 791                aspect->denominator = 59;
 792        }
 793
 794        return 0;
 795}
 796
 797static int adv7180_g_tvnorms(struct v4l2_subdev *sd, v4l2_std_id *norm)
 798{
 799        *norm = V4L2_STD_ALL;
 800        return 0;
 801}
 802
 803static int adv7180_s_stream(struct v4l2_subdev *sd, int enable)
 804{
 805        struct adv7180_state *state = to_state(sd);
 806        int ret;
 807
 808        /* It's always safe to stop streaming, no need to take the lock */
 809        if (!enable) {
 810                state->streaming = enable;
 811                return 0;
 812        }
 813
 814        /* Must wait until querystd released the lock */
 815        ret = mutex_lock_interruptible(&state->mutex);
 816        if (ret)
 817                return ret;
 818        state->streaming = enable;
 819        mutex_unlock(&state->mutex);
 820        return 0;
 821}
 822
 823static int adv7180_subscribe_event(struct v4l2_subdev *sd,
 824                                   struct v4l2_fh *fh,
 825                                   struct v4l2_event_subscription *sub)
 826{
 827        switch (sub->type) {
 828        case V4L2_EVENT_SOURCE_CHANGE:
 829                return v4l2_src_change_event_subdev_subscribe(sd, fh, sub);
 830        case V4L2_EVENT_CTRL:
 831                return v4l2_ctrl_subdev_subscribe_event(sd, fh, sub);
 832        default:
 833                return -EINVAL;
 834        }
 835}
 836
 837static const struct v4l2_subdev_video_ops adv7180_video_ops = {
 838        .s_std = adv7180_s_std,
 839        .g_std = adv7180_g_std,
 840        .g_frame_interval = adv7180_g_frame_interval,
 841        .querystd = adv7180_querystd,
 842        .g_input_status = adv7180_g_input_status,
 843        .s_routing = adv7180_s_routing,
 844        .g_mbus_config = adv7180_g_mbus_config,
 845        .g_pixelaspect = adv7180_g_pixelaspect,
 846        .g_tvnorms = adv7180_g_tvnorms,
 847        .s_stream = adv7180_s_stream,
 848};
 849
 850static const struct v4l2_subdev_core_ops adv7180_core_ops = {
 851        .s_power = adv7180_s_power,
 852        .subscribe_event = adv7180_subscribe_event,
 853        .unsubscribe_event = v4l2_event_subdev_unsubscribe,
 854};
 855
 856static const struct v4l2_subdev_pad_ops adv7180_pad_ops = {
 857        .enum_mbus_code = adv7180_enum_mbus_code,
 858        .set_fmt = adv7180_set_pad_format,
 859        .get_fmt = adv7180_get_pad_format,
 860};
 861
 862static const struct v4l2_subdev_sensor_ops adv7180_sensor_ops = {
 863        .g_skip_frames = adv7180_get_skip_frames,
 864};
 865
 866static const struct v4l2_subdev_ops adv7180_ops = {
 867        .core = &adv7180_core_ops,
 868        .video = &adv7180_video_ops,
 869        .pad = &adv7180_pad_ops,
 870        .sensor = &adv7180_sensor_ops,
 871};
 872
 873static irqreturn_t adv7180_irq(int irq, void *devid)
 874{
 875        struct adv7180_state *state = devid;
 876        u8 isr3;
 877
 878        mutex_lock(&state->mutex);
 879        isr3 = adv7180_read(state, ADV7180_REG_ISR3);
 880        /* clear */
 881        adv7180_write(state, ADV7180_REG_ICR3, isr3);
 882
 883        if (isr3 & ADV7180_IRQ3_AD_CHANGE) {
 884                static const struct v4l2_event src_ch = {
 885                        .type = V4L2_EVENT_SOURCE_CHANGE,
 886                        .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
 887                };
 888
 889                v4l2_subdev_notify_event(&state->sd, &src_ch);
 890        }
 891        mutex_unlock(&state->mutex);
 892
 893        return IRQ_HANDLED;
 894}
 895
 896static int adv7180_init(struct adv7180_state *state)
 897{
 898        int ret;
 899
 900        /* ITU-R BT.656-4 compatible */
 901        ret = adv7180_write(state, ADV7180_REG_EXTENDED_OUTPUT_CONTROL,
 902                        ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS);
 903        if (ret < 0)
 904                return ret;
 905
 906        /* Manually set V bit end position in NTSC mode */
 907        return adv7180_write(state, ADV7180_REG_NTSC_V_BIT_END,
 908                                        ADV7180_NTSC_V_BIT_END_MANUAL_NVEND);
 909}
 910
 911static int adv7180_set_std(struct adv7180_state *state, unsigned int std)
 912{
 913        return adv7180_write(state, ADV7180_REG_INPUT_CONTROL,
 914                (std << 4) | state->input);
 915}
 916
 917static int adv7180_select_input(struct adv7180_state *state, unsigned int input)
 918{
 919        int ret;
 920
 921        ret = adv7180_read(state, ADV7180_REG_INPUT_CONTROL);
 922        if (ret < 0)
 923                return ret;
 924
 925        ret &= ~ADV7180_INPUT_CONTROL_INSEL_MASK;
 926        ret |= input;
 927        return adv7180_write(state, ADV7180_REG_INPUT_CONTROL, ret);
 928}
 929
 930static int adv7182_init(struct adv7180_state *state)
 931{
 932        if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2)
 933                adv7180_write(state, ADV7180_REG_CSI_SLAVE_ADDR,
 934                        ADV7180_DEFAULT_CSI_I2C_ADDR << 1);
 935
 936        if (state->chip_info->flags & ADV7180_FLAG_I2P)
 937                adv7180_write(state, ADV7180_REG_VPP_SLAVE_ADDR,
 938                        ADV7180_DEFAULT_VPP_I2C_ADDR << 1);
 939
 940        if (state->chip_info->flags & ADV7180_FLAG_V2) {
 941                /* ADI recommended writes for improved video quality */
 942                adv7180_write(state, 0x0080, 0x51);
 943                adv7180_write(state, 0x0081, 0x51);
 944                adv7180_write(state, 0x0082, 0x68);
 945        }
 946
 947        /* ADI required writes */
 948        if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) {
 949                adv7180_write(state, ADV7180_REG_OUTPUT_CONTROL, 0x4e);
 950                adv7180_write(state, ADV7180_REG_EXTENDED_OUTPUT_CONTROL, 0x57);
 951                adv7180_write(state, ADV7180_REG_CTRL_2, 0xc0);
 952        } else {
 953                if (state->chip_info->flags & ADV7180_FLAG_V2)
 954                        adv7180_write(state,
 955                                      ADV7180_REG_EXTENDED_OUTPUT_CONTROL,
 956                                      0x17);
 957                else
 958                        adv7180_write(state,
 959                                      ADV7180_REG_EXTENDED_OUTPUT_CONTROL,
 960                                      0x07);
 961                adv7180_write(state, ADV7180_REG_OUTPUT_CONTROL, 0x0c);
 962                adv7180_write(state, ADV7180_REG_CTRL_2, 0x40);
 963        }
 964
 965        adv7180_write(state, 0x0013, 0x00);
 966
 967        return 0;
 968}
 969
 970static int adv7182_set_std(struct adv7180_state *state, unsigned int std)
 971{
 972        return adv7180_write(state, ADV7182_REG_INPUT_VIDSEL, std << 4);
 973}
 974
 975enum adv7182_input_type {
 976        ADV7182_INPUT_TYPE_CVBS,
 977        ADV7182_INPUT_TYPE_DIFF_CVBS,
 978        ADV7182_INPUT_TYPE_SVIDEO,
 979        ADV7182_INPUT_TYPE_YPBPR,
 980};
 981
 982static enum adv7182_input_type adv7182_get_input_type(unsigned int input)
 983{
 984        switch (input) {
 985        case ADV7182_INPUT_CVBS_AIN1:
 986        case ADV7182_INPUT_CVBS_AIN2:
 987        case ADV7182_INPUT_CVBS_AIN3:
 988        case ADV7182_INPUT_CVBS_AIN4:
 989        case ADV7182_INPUT_CVBS_AIN5:
 990        case ADV7182_INPUT_CVBS_AIN6:
 991        case ADV7182_INPUT_CVBS_AIN7:
 992        case ADV7182_INPUT_CVBS_AIN8:
 993                return ADV7182_INPUT_TYPE_CVBS;
 994        case ADV7182_INPUT_SVIDEO_AIN1_AIN2:
 995        case ADV7182_INPUT_SVIDEO_AIN3_AIN4:
 996        case ADV7182_INPUT_SVIDEO_AIN5_AIN6:
 997        case ADV7182_INPUT_SVIDEO_AIN7_AIN8:
 998                return ADV7182_INPUT_TYPE_SVIDEO;
 999        case ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3:
1000        case ADV7182_INPUT_YPRPB_AIN4_AIN5_AIN6:
1001                return ADV7182_INPUT_TYPE_YPBPR;
1002        case ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2:
1003        case ADV7182_INPUT_DIFF_CVBS_AIN3_AIN4:
1004        case ADV7182_INPUT_DIFF_CVBS_AIN5_AIN6:
1005        case ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8:
1006                return ADV7182_INPUT_TYPE_DIFF_CVBS;
1007        default: /* Will never happen */
1008                return 0;
1009        }
1010}
1011
1012/* ADI recommended writes to registers 0x52, 0x53, 0x54 */
1013static unsigned int adv7182_lbias_settings[][3] = {
1014        [ADV7182_INPUT_TYPE_CVBS] = { 0xCB, 0x4E, 0x80 },
1015        [ADV7182_INPUT_TYPE_DIFF_CVBS] = { 0xC0, 0x4E, 0x80 },
1016        [ADV7182_INPUT_TYPE_SVIDEO] = { 0x0B, 0xCE, 0x80 },
1017        [ADV7182_INPUT_TYPE_YPBPR] = { 0x0B, 0x4E, 0xC0 },
1018};
1019
1020static unsigned int adv7280_lbias_settings[][3] = {
1021        [ADV7182_INPUT_TYPE_CVBS] = { 0xCD, 0x4E, 0x80 },
1022        [ADV7182_INPUT_TYPE_DIFF_CVBS] = { 0xC0, 0x4E, 0x80 },
1023        [ADV7182_INPUT_TYPE_SVIDEO] = { 0x0B, 0xCE, 0x80 },
1024        [ADV7182_INPUT_TYPE_YPBPR] = { 0x0B, 0x4E, 0xC0 },
1025};
1026
1027static int adv7182_select_input(struct adv7180_state *state, unsigned int input)
1028{
1029        enum adv7182_input_type input_type;
1030        unsigned int *lbias;
1031        unsigned int i;
1032        int ret;
1033
1034        ret = adv7180_write(state, ADV7180_REG_INPUT_CONTROL, input);
1035        if (ret)
1036                return ret;
1037
1038        /* Reset clamp circuitry - ADI recommended writes */
1039        adv7180_write(state, ADV7180_REG_RST_CLAMP, 0x00);
1040        adv7180_write(state, ADV7180_REG_RST_CLAMP, 0xff);
1041
1042        input_type = adv7182_get_input_type(input);
1043
1044        switch (input_type) {
1045        case ADV7182_INPUT_TYPE_CVBS:
1046        case ADV7182_INPUT_TYPE_DIFF_CVBS:
1047                /* ADI recommends to use the SH1 filter */
1048                adv7180_write(state, ADV7180_REG_SHAP_FILTER_CTL_1, 0x41);
1049                break;
1050        default:
1051                adv7180_write(state, ADV7180_REG_SHAP_FILTER_CTL_1, 0x01);
1052                break;
1053        }
1054
1055        if (state->chip_info->flags & ADV7180_FLAG_V2)
1056                lbias = adv7280_lbias_settings[input_type];
1057        else
1058                lbias = adv7182_lbias_settings[input_type];
1059
1060        for (i = 0; i < ARRAY_SIZE(adv7182_lbias_settings[0]); i++)
1061                adv7180_write(state, ADV7180_REG_CVBS_TRIM + i, lbias[i]);
1062
1063        if (input_type == ADV7182_INPUT_TYPE_DIFF_CVBS) {
1064                /* ADI required writes to make differential CVBS work */
1065                adv7180_write(state, ADV7180_REG_RES_CIR, 0xa8);
1066                adv7180_write(state, ADV7180_REG_CLAMP_ADJ, 0x90);
1067                adv7180_write(state, ADV7180_REG_DIFF_MODE, 0xb0);
1068                adv7180_write(state, ADV7180_REG_AGC_ADJ1, 0x08);
1069                adv7180_write(state, ADV7180_REG_AGC_ADJ2, 0xa0);
1070        } else {
1071                adv7180_write(state, ADV7180_REG_RES_CIR, 0xf0);
1072                adv7180_write(state, ADV7180_REG_CLAMP_ADJ, 0xd0);
1073                adv7180_write(state, ADV7180_REG_DIFF_MODE, 0x10);
1074                adv7180_write(state, ADV7180_REG_AGC_ADJ1, 0x9c);
1075                adv7180_write(state, ADV7180_REG_AGC_ADJ2, 0x00);
1076        }
1077
1078        return 0;
1079}
1080
1081static const struct adv7180_chip_info adv7180_info = {
1082        .flags = ADV7180_FLAG_RESET_POWERED,
1083        /* We cannot discriminate between LQFP and 40-pin LFCSP, so accept
1084         * all inputs and let the card driver take care of validation
1085         */
1086        .valid_input_mask = BIT(ADV7180_INPUT_CVBS_AIN1) |
1087                BIT(ADV7180_INPUT_CVBS_AIN2) |
1088                BIT(ADV7180_INPUT_CVBS_AIN3) |
1089                BIT(ADV7180_INPUT_CVBS_AIN4) |
1090                BIT(ADV7180_INPUT_CVBS_AIN5) |
1091                BIT(ADV7180_INPUT_CVBS_AIN6) |
1092                BIT(ADV7180_INPUT_SVIDEO_AIN1_AIN2) |
1093                BIT(ADV7180_INPUT_SVIDEO_AIN3_AIN4) |
1094                BIT(ADV7180_INPUT_SVIDEO_AIN5_AIN6) |
1095                BIT(ADV7180_INPUT_YPRPB_AIN1_AIN2_AIN3) |
1096                BIT(ADV7180_INPUT_YPRPB_AIN4_AIN5_AIN6),
1097        .init = adv7180_init,
1098        .set_std = adv7180_set_std,
1099        .select_input = adv7180_select_input,
1100};
1101
1102static const struct adv7180_chip_info adv7182_info = {
1103        .valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1104                BIT(ADV7182_INPUT_CVBS_AIN2) |
1105                BIT(ADV7182_INPUT_CVBS_AIN3) |
1106                BIT(ADV7182_INPUT_CVBS_AIN4) |
1107                BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1108                BIT(ADV7182_INPUT_SVIDEO_AIN3_AIN4) |
1109                BIT(ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3) |
1110                BIT(ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2) |
1111                BIT(ADV7182_INPUT_DIFF_CVBS_AIN3_AIN4),
1112        .init = adv7182_init,
1113        .set_std = adv7182_set_std,
1114        .select_input = adv7182_select_input,
1115};
1116
1117static const struct adv7180_chip_info adv7280_info = {
1118        .flags = ADV7180_FLAG_V2 | ADV7180_FLAG_I2P,
1119        .valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1120                BIT(ADV7182_INPUT_CVBS_AIN2) |
1121                BIT(ADV7182_INPUT_CVBS_AIN3) |
1122                BIT(ADV7182_INPUT_CVBS_AIN4) |
1123                BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1124                BIT(ADV7182_INPUT_SVIDEO_AIN3_AIN4) |
1125                BIT(ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3),
1126        .init = adv7182_init,
1127        .set_std = adv7182_set_std,
1128        .select_input = adv7182_select_input,
1129};
1130
1131static const struct adv7180_chip_info adv7280_m_info = {
1132        .flags = ADV7180_FLAG_V2 | ADV7180_FLAG_MIPI_CSI2 | ADV7180_FLAG_I2P,
1133        .valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1134                BIT(ADV7182_INPUT_CVBS_AIN2) |
1135                BIT(ADV7182_INPUT_CVBS_AIN3) |
1136                BIT(ADV7182_INPUT_CVBS_AIN4) |
1137                BIT(ADV7182_INPUT_CVBS_AIN5) |
1138                BIT(ADV7182_INPUT_CVBS_AIN6) |
1139                BIT(ADV7182_INPUT_CVBS_AIN7) |
1140                BIT(ADV7182_INPUT_CVBS_AIN8) |
1141                BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1142                BIT(ADV7182_INPUT_SVIDEO_AIN3_AIN4) |
1143                BIT(ADV7182_INPUT_SVIDEO_AIN5_AIN6) |
1144                BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) |
1145                BIT(ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3) |
1146                BIT(ADV7182_INPUT_YPRPB_AIN4_AIN5_AIN6),
1147        .init = adv7182_init,
1148        .set_std = adv7182_set_std,
1149        .select_input = adv7182_select_input,
1150};
1151
1152static const struct adv7180_chip_info adv7281_info = {
1153        .flags = ADV7180_FLAG_V2 | ADV7180_FLAG_MIPI_CSI2,
1154        .valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1155                BIT(ADV7182_INPUT_CVBS_AIN2) |
1156                BIT(ADV7182_INPUT_CVBS_AIN7) |
1157                BIT(ADV7182_INPUT_CVBS_AIN8) |
1158                BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1159                BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) |
1160                BIT(ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2) |
1161                BIT(ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8),
1162        .init = adv7182_init,
1163        .set_std = adv7182_set_std,
1164        .select_input = adv7182_select_input,
1165};
1166
1167static const struct adv7180_chip_info adv7281_m_info = {
1168        .flags = ADV7180_FLAG_V2 | ADV7180_FLAG_MIPI_CSI2,
1169        .valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1170                BIT(ADV7182_INPUT_CVBS_AIN2) |
1171                BIT(ADV7182_INPUT_CVBS_AIN3) |
1172                BIT(ADV7182_INPUT_CVBS_AIN4) |
1173                BIT(ADV7182_INPUT_CVBS_AIN7) |
1174                BIT(ADV7182_INPUT_CVBS_AIN8) |
1175                BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1176                BIT(ADV7182_INPUT_SVIDEO_AIN3_AIN4) |
1177                BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) |
1178                BIT(ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3) |
1179                BIT(ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2) |
1180                BIT(ADV7182_INPUT_DIFF_CVBS_AIN3_AIN4) |
1181                BIT(ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8),
1182        .init = adv7182_init,
1183        .set_std = adv7182_set_std,
1184        .select_input = adv7182_select_input,
1185};
1186
1187static const struct adv7180_chip_info adv7281_ma_info = {
1188        .flags = ADV7180_FLAG_V2 | ADV7180_FLAG_MIPI_CSI2,
1189        .valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1190                BIT(ADV7182_INPUT_CVBS_AIN2) |
1191                BIT(ADV7182_INPUT_CVBS_AIN3) |
1192                BIT(ADV7182_INPUT_CVBS_AIN4) |
1193                BIT(ADV7182_INPUT_CVBS_AIN5) |
1194                BIT(ADV7182_INPUT_CVBS_AIN6) |
1195                BIT(ADV7182_INPUT_CVBS_AIN7) |
1196                BIT(ADV7182_INPUT_CVBS_AIN8) |
1197                BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1198                BIT(ADV7182_INPUT_SVIDEO_AIN3_AIN4) |
1199                BIT(ADV7182_INPUT_SVIDEO_AIN5_AIN6) |
1200                BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) |
1201                BIT(ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3) |
1202                BIT(ADV7182_INPUT_YPRPB_AIN4_AIN5_AIN6) |
1203                BIT(ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2) |
1204                BIT(ADV7182_INPUT_DIFF_CVBS_AIN3_AIN4) |
1205                BIT(ADV7182_INPUT_DIFF_CVBS_AIN5_AIN6) |
1206                BIT(ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8),
1207        .init = adv7182_init,
1208        .set_std = adv7182_set_std,
1209        .select_input = adv7182_select_input,
1210};
1211
1212static const struct adv7180_chip_info adv7282_info = {
1213        .flags = ADV7180_FLAG_V2 | ADV7180_FLAG_I2P,
1214        .valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1215                BIT(ADV7182_INPUT_CVBS_AIN2) |
1216                BIT(ADV7182_INPUT_CVBS_AIN7) |
1217                BIT(ADV7182_INPUT_CVBS_AIN8) |
1218                BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1219                BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) |
1220                BIT(ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2) |
1221                BIT(ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8),
1222        .init = adv7182_init,
1223        .set_std = adv7182_set_std,
1224        .select_input = adv7182_select_input,
1225};
1226
1227static const struct adv7180_chip_info adv7282_m_info = {
1228        .flags = ADV7180_FLAG_V2 | ADV7180_FLAG_MIPI_CSI2 | ADV7180_FLAG_I2P,
1229        .valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1230                BIT(ADV7182_INPUT_CVBS_AIN2) |
1231                BIT(ADV7182_INPUT_CVBS_AIN3) |
1232                BIT(ADV7182_INPUT_CVBS_AIN4) |
1233                BIT(ADV7182_INPUT_CVBS_AIN7) |
1234                BIT(ADV7182_INPUT_CVBS_AIN8) |
1235                BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1236                BIT(ADV7182_INPUT_SVIDEO_AIN3_AIN4) |
1237                BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) |
1238                BIT(ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2) |
1239                BIT(ADV7182_INPUT_DIFF_CVBS_AIN3_AIN4) |
1240                BIT(ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8),
1241        .init = adv7182_init,
1242        .set_std = adv7182_set_std,
1243        .select_input = adv7182_select_input,
1244};
1245
1246static int init_device(struct adv7180_state *state)
1247{
1248        int ret;
1249
1250        mutex_lock(&state->mutex);
1251
1252        adv7180_set_power_pin(state, true);
1253
1254        adv7180_write(state, ADV7180_REG_PWR_MAN, ADV7180_PWR_MAN_RES);
1255        usleep_range(5000, 10000);
1256
1257        ret = state->chip_info->init(state);
1258        if (ret)
1259                goto out_unlock;
1260
1261        ret = adv7180_program_std(state);
1262        if (ret)
1263                goto out_unlock;
1264
1265        adv7180_set_field_mode(state);
1266
1267        /* register for interrupts */
1268        if (state->irq > 0) {
1269                /* config the Interrupt pin to be active low */
1270                ret = adv7180_write(state, ADV7180_REG_ICONF1,
1271                                                ADV7180_ICONF1_ACTIVE_LOW |
1272                                                ADV7180_ICONF1_PSYNC_ONLY);
1273                if (ret < 0)
1274                        goto out_unlock;
1275
1276                ret = adv7180_write(state, ADV7180_REG_IMR1, 0);
1277                if (ret < 0)
1278                        goto out_unlock;
1279
1280                ret = adv7180_write(state, ADV7180_REG_IMR2, 0);
1281                if (ret < 0)
1282                        goto out_unlock;
1283
1284                /* enable AD change interrupts interrupts */
1285                ret = adv7180_write(state, ADV7180_REG_IMR3,
1286                                                ADV7180_IRQ3_AD_CHANGE);
1287                if (ret < 0)
1288                        goto out_unlock;
1289
1290                ret = adv7180_write(state, ADV7180_REG_IMR4, 0);
1291                if (ret < 0)
1292                        goto out_unlock;
1293        }
1294
1295out_unlock:
1296        mutex_unlock(&state->mutex);
1297
1298        return ret;
1299}
1300
1301static int adv7180_probe(struct i2c_client *client,
1302                         const struct i2c_device_id *id)
1303{
1304        struct adv7180_state *state;
1305        struct v4l2_subdev *sd;
1306        int ret;
1307
1308        /* Check if the adapter supports the needed features */
1309        if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1310                return -EIO;
1311
1312        v4l_info(client, "chip found @ 0x%02x (%s)\n",
1313                 client->addr, client->adapter->name);
1314
1315        state = devm_kzalloc(&client->dev, sizeof(*state), GFP_KERNEL);
1316        if (state == NULL)
1317                return -ENOMEM;
1318
1319        state->client = client;
1320        state->field = V4L2_FIELD_ALTERNATE;
1321        state->chip_info = (struct adv7180_chip_info *)id->driver_data;
1322
1323        state->pwdn_gpio = devm_gpiod_get_optional(&client->dev, "powerdown",
1324                                                   GPIOD_OUT_HIGH);
1325        if (IS_ERR(state->pwdn_gpio)) {
1326                ret = PTR_ERR(state->pwdn_gpio);
1327                v4l_err(client, "request for power pin failed: %d\n", ret);
1328                return ret;
1329        }
1330
1331        if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) {
1332                state->csi_client = i2c_new_dummy(client->adapter,
1333                                ADV7180_DEFAULT_CSI_I2C_ADDR);
1334                if (!state->csi_client)
1335                        return -ENOMEM;
1336        }
1337
1338        if (state->chip_info->flags & ADV7180_FLAG_I2P) {
1339                state->vpp_client = i2c_new_dummy(client->adapter,
1340                                ADV7180_DEFAULT_VPP_I2C_ADDR);
1341                if (!state->vpp_client) {
1342                        ret = -ENOMEM;
1343                        goto err_unregister_csi_client;
1344                }
1345        }
1346
1347        state->irq = client->irq;
1348        mutex_init(&state->mutex);
1349        state->curr_norm = V4L2_STD_NTSC;
1350        if (state->chip_info->flags & ADV7180_FLAG_RESET_POWERED)
1351                state->powered = true;
1352        else
1353                state->powered = false;
1354        state->input = 0;
1355        sd = &state->sd;
1356        v4l2_i2c_subdev_init(sd, client, &adv7180_ops);
1357        sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS;
1358
1359        ret = adv7180_init_controls(state);
1360        if (ret)
1361                goto err_unregister_vpp_client;
1362
1363        state->pad.flags = MEDIA_PAD_FL_SOURCE;
1364        sd->entity.function = MEDIA_ENT_F_ATV_DECODER;
1365        ret = media_entity_pads_init(&sd->entity, 1, &state->pad);
1366        if (ret)
1367                goto err_free_ctrl;
1368
1369        ret = init_device(state);
1370        if (ret)
1371                goto err_media_entity_cleanup;
1372
1373        if (state->irq) {
1374                ret = request_threaded_irq(client->irq, NULL, adv7180_irq,
1375                                           IRQF_ONESHOT | IRQF_TRIGGER_FALLING,
1376                                           KBUILD_MODNAME, state);
1377                if (ret)
1378                        goto err_media_entity_cleanup;
1379        }
1380
1381        ret = v4l2_async_register_subdev(sd);
1382        if (ret)
1383                goto err_free_irq;
1384
1385        return 0;
1386
1387err_free_irq:
1388        if (state->irq > 0)
1389                free_irq(client->irq, state);
1390err_media_entity_cleanup:
1391        media_entity_cleanup(&sd->entity);
1392err_free_ctrl:
1393        adv7180_exit_controls(state);
1394err_unregister_vpp_client:
1395        i2c_unregister_device(state->vpp_client);
1396err_unregister_csi_client:
1397        i2c_unregister_device(state->csi_client);
1398        mutex_destroy(&state->mutex);
1399        return ret;
1400}
1401
1402static int adv7180_remove(struct i2c_client *client)
1403{
1404        struct v4l2_subdev *sd = i2c_get_clientdata(client);
1405        struct adv7180_state *state = to_state(sd);
1406
1407        v4l2_async_unregister_subdev(sd);
1408
1409        if (state->irq > 0)
1410                free_irq(client->irq, state);
1411
1412        media_entity_cleanup(&sd->entity);
1413        adv7180_exit_controls(state);
1414
1415        i2c_unregister_device(state->vpp_client);
1416        i2c_unregister_device(state->csi_client);
1417
1418        adv7180_set_power_pin(state, false);
1419
1420        mutex_destroy(&state->mutex);
1421
1422        return 0;
1423}
1424
1425static const struct i2c_device_id adv7180_id[] = {
1426        { "adv7180", (kernel_ulong_t)&adv7180_info },
1427        { "adv7180cp", (kernel_ulong_t)&adv7180_info },
1428        { "adv7180st", (kernel_ulong_t)&adv7180_info },
1429        { "adv7182", (kernel_ulong_t)&adv7182_info },
1430        { "adv7280", (kernel_ulong_t)&adv7280_info },
1431        { "adv7280-m", (kernel_ulong_t)&adv7280_m_info },
1432        { "adv7281", (kernel_ulong_t)&adv7281_info },
1433        { "adv7281-m", (kernel_ulong_t)&adv7281_m_info },
1434        { "adv7281-ma", (kernel_ulong_t)&adv7281_ma_info },
1435        { "adv7282", (kernel_ulong_t)&adv7282_info },
1436        { "adv7282-m", (kernel_ulong_t)&adv7282_m_info },
1437        {},
1438};
1439MODULE_DEVICE_TABLE(i2c, adv7180_id);
1440
1441#ifdef CONFIG_PM_SLEEP
1442static int adv7180_suspend(struct device *dev)
1443{
1444        struct i2c_client *client = to_i2c_client(dev);
1445        struct v4l2_subdev *sd = i2c_get_clientdata(client);
1446        struct adv7180_state *state = to_state(sd);
1447
1448        return adv7180_set_power(state, false);
1449}
1450
1451static int adv7180_resume(struct device *dev)
1452{
1453        struct i2c_client *client = to_i2c_client(dev);
1454        struct v4l2_subdev *sd = i2c_get_clientdata(client);
1455        struct adv7180_state *state = to_state(sd);
1456        int ret;
1457
1458        ret = init_device(state);
1459        if (ret < 0)
1460                return ret;
1461
1462        ret = adv7180_set_power(state, state->powered);
1463        if (ret)
1464                return ret;
1465
1466        return 0;
1467}
1468
1469static SIMPLE_DEV_PM_OPS(adv7180_pm_ops, adv7180_suspend, adv7180_resume);
1470#define ADV7180_PM_OPS (&adv7180_pm_ops)
1471
1472#else
1473#define ADV7180_PM_OPS NULL
1474#endif
1475
1476#ifdef CONFIG_OF
1477static const struct of_device_id adv7180_of_id[] = {
1478        { .compatible = "adi,adv7180", },
1479        { .compatible = "adi,adv7180cp", },
1480        { .compatible = "adi,adv7180st", },
1481        { .compatible = "adi,adv7182", },
1482        { .compatible = "adi,adv7280", },
1483        { .compatible = "adi,adv7280-m", },
1484        { .compatible = "adi,adv7281", },
1485        { .compatible = "adi,adv7281-m", },
1486        { .compatible = "adi,adv7281-ma", },
1487        { .compatible = "adi,adv7282", },
1488        { .compatible = "adi,adv7282-m", },
1489        { },
1490};
1491
1492MODULE_DEVICE_TABLE(of, adv7180_of_id);
1493#endif
1494
1495static struct i2c_driver adv7180_driver = {
1496        .driver = {
1497                   .name = KBUILD_MODNAME,
1498                   .pm = ADV7180_PM_OPS,
1499                   .of_match_table = of_match_ptr(adv7180_of_id),
1500                   },
1501        .probe = adv7180_probe,
1502        .remove = adv7180_remove,
1503        .id_table = adv7180_id,
1504};
1505
1506module_i2c_driver(adv7180_driver);
1507
1508MODULE_DESCRIPTION("Analog Devices ADV7180 video decoder driver");
1509MODULE_AUTHOR("Mocean Laboratories");
1510MODULE_LICENSE("GPL v2");
1511