linux/drivers/media/i2c/adv7180.c
<<
>>
Prefs
   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_VSYNC_FIELD_CTL_1_NEWAV 0x12
  98#define ADV7180_REG_MANUAL_WIN_CTL_1    0x003d
  99#define ADV7180_REG_MANUAL_WIN_CTL_2    0x003e
 100#define ADV7180_REG_MANUAL_WIN_CTL_3    0x003f
 101#define ADV7180_REG_LOCK_CNT            0x0051
 102#define ADV7180_REG_CVBS_TRIM           0x0052
 103#define ADV7180_REG_CLAMP_ADJ           0x005a
 104#define ADV7180_REG_RES_CIR             0x005f
 105#define ADV7180_REG_DIFF_MODE           0x0060
 106
 107#define ADV7180_REG_ICONF1              0x2040
 108#define ADV7180_ICONF1_ACTIVE_LOW       0x01
 109#define ADV7180_ICONF1_PSYNC_ONLY       0x10
 110#define ADV7180_ICONF1_ACTIVE_TO_CLR    0xC0
 111/* Saturation */
 112#define ADV7180_REG_SD_SAT_CB   0x00e3  /*Unsigned */
 113#define ADV7180_REG_SD_SAT_CR   0x00e4  /*Unsigned */
 114#define ADV7180_SAT_MIN         0
 115#define ADV7180_SAT_DEF         128
 116#define ADV7180_SAT_MAX         255
 117
 118#define ADV7180_IRQ1_LOCK       0x01
 119#define ADV7180_IRQ1_UNLOCK     0x02
 120#define ADV7180_REG_ISR1        0x2042
 121#define ADV7180_REG_ICR1        0x2043
 122#define ADV7180_REG_IMR1        0x2044
 123#define ADV7180_REG_IMR2        0x2048
 124#define ADV7180_IRQ3_AD_CHANGE  0x08
 125#define ADV7180_REG_ISR3        0x204A
 126#define ADV7180_REG_ICR3        0x204B
 127#define ADV7180_REG_IMR3        0x204C
 128#define ADV7180_REG_IMR4        0x2050
 129
 130#define ADV7180_REG_NTSC_V_BIT_END      0x00E6
 131#define ADV7180_NTSC_V_BIT_END_MANUAL_NVEND     0x4F
 132
 133#define ADV7180_REG_VPP_SLAVE_ADDR      0xFD
 134#define ADV7180_REG_CSI_SLAVE_ADDR      0xFE
 135
 136#define ADV7180_REG_ACE_CTRL1           0x4080
 137#define ADV7180_REG_ACE_CTRL5           0x4084
 138#define ADV7180_REG_FLCONTROL           0x40e0
 139#define ADV7180_FLCONTROL_FL_ENABLE 0x1
 140
 141#define ADV7180_REG_RST_CLAMP   0x809c
 142#define ADV7180_REG_AGC_ADJ1    0x80b6
 143#define ADV7180_REG_AGC_ADJ2    0x80c0
 144
 145#define ADV7180_CSI_REG_PWRDN   0x00
 146#define ADV7180_CSI_PWRDN       0x80
 147
 148#define ADV7180_INPUT_CVBS_AIN1 0x00
 149#define ADV7180_INPUT_CVBS_AIN2 0x01
 150#define ADV7180_INPUT_CVBS_AIN3 0x02
 151#define ADV7180_INPUT_CVBS_AIN4 0x03
 152#define ADV7180_INPUT_CVBS_AIN5 0x04
 153#define ADV7180_INPUT_CVBS_AIN6 0x05
 154#define ADV7180_INPUT_SVIDEO_AIN1_AIN2 0x06
 155#define ADV7180_INPUT_SVIDEO_AIN3_AIN4 0x07
 156#define ADV7180_INPUT_SVIDEO_AIN5_AIN6 0x08
 157#define ADV7180_INPUT_YPRPB_AIN1_AIN2_AIN3 0x09
 158#define ADV7180_INPUT_YPRPB_AIN4_AIN5_AIN6 0x0a
 159
 160#define ADV7182_INPUT_CVBS_AIN1 0x00
 161#define ADV7182_INPUT_CVBS_AIN2 0x01
 162#define ADV7182_INPUT_CVBS_AIN3 0x02
 163#define ADV7182_INPUT_CVBS_AIN4 0x03
 164#define ADV7182_INPUT_CVBS_AIN5 0x04
 165#define ADV7182_INPUT_CVBS_AIN6 0x05
 166#define ADV7182_INPUT_CVBS_AIN7 0x06
 167#define ADV7182_INPUT_CVBS_AIN8 0x07
 168#define ADV7182_INPUT_SVIDEO_AIN1_AIN2 0x08
 169#define ADV7182_INPUT_SVIDEO_AIN3_AIN4 0x09
 170#define ADV7182_INPUT_SVIDEO_AIN5_AIN6 0x0a
 171#define ADV7182_INPUT_SVIDEO_AIN7_AIN8 0x0b
 172#define ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3 0x0c
 173#define ADV7182_INPUT_YPRPB_AIN4_AIN5_AIN6 0x0d
 174#define ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2 0x0e
 175#define ADV7182_INPUT_DIFF_CVBS_AIN3_AIN4 0x0f
 176#define ADV7182_INPUT_DIFF_CVBS_AIN5_AIN6 0x10
 177#define ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8 0x11
 178
 179#define ADV7180_DEFAULT_CSI_I2C_ADDR 0x44
 180#define ADV7180_DEFAULT_VPP_I2C_ADDR 0x42
 181
 182#define V4L2_CID_ADV_FAST_SWITCH        (V4L2_CID_USER_ADV7180_BASE + 0x00)
 183
 184/* Initial number of frames to skip to avoid possible garbage */
 185#define ADV7180_NUM_OF_SKIP_FRAMES       2
 186
 187struct adv7180_state;
 188
 189#define ADV7180_FLAG_RESET_POWERED      BIT(0)
 190#define ADV7180_FLAG_V2                 BIT(1)
 191#define ADV7180_FLAG_MIPI_CSI2          BIT(2)
 192#define ADV7180_FLAG_I2P                BIT(3)
 193
 194struct adv7180_chip_info {
 195        unsigned int flags;
 196        unsigned int valid_input_mask;
 197        int (*set_std)(struct adv7180_state *st, unsigned int std);
 198        int (*select_input)(struct adv7180_state *st, unsigned int input);
 199        int (*init)(struct adv7180_state *state);
 200};
 201
 202struct adv7180_state {
 203        struct v4l2_ctrl_handler ctrl_hdl;
 204        struct v4l2_subdev      sd;
 205        struct media_pad        pad;
 206        struct mutex            mutex; /* mutual excl. when accessing chip */
 207        int                     irq;
 208        struct gpio_desc        *pwdn_gpio;
 209        struct gpio_desc        *rst_gpio;
 210        v4l2_std_id             curr_norm;
 211        bool                    powered;
 212        bool                    streaming;
 213        u8                      input;
 214
 215        struct i2c_client       *client;
 216        unsigned int            register_page;
 217        struct i2c_client       *csi_client;
 218        struct i2c_client       *vpp_client;
 219        const struct adv7180_chip_info *chip_info;
 220        enum v4l2_field         field;
 221        bool                    force_bt656_4;
 222};
 223#define to_adv7180_sd(_ctrl) (&container_of(_ctrl->handler,             \
 224                                            struct adv7180_state,       \
 225                                            ctrl_hdl)->sd)
 226
 227static int adv7180_select_page(struct adv7180_state *state, unsigned int page)
 228{
 229        if (state->register_page != page) {
 230                i2c_smbus_write_byte_data(state->client, ADV7180_REG_CTRL,
 231                        page);
 232                state->register_page = page;
 233        }
 234
 235        return 0;
 236}
 237
 238static int adv7180_write(struct adv7180_state *state, unsigned int reg,
 239        unsigned int value)
 240{
 241        lockdep_assert_held(&state->mutex);
 242        adv7180_select_page(state, reg >> 8);
 243        return i2c_smbus_write_byte_data(state->client, reg & 0xff, value);
 244}
 245
 246static int adv7180_read(struct adv7180_state *state, unsigned int reg)
 247{
 248        lockdep_assert_held(&state->mutex);
 249        adv7180_select_page(state, reg >> 8);
 250        return i2c_smbus_read_byte_data(state->client, reg & 0xff);
 251}
 252
 253static int adv7180_csi_write(struct adv7180_state *state, unsigned int reg,
 254        unsigned int value)
 255{
 256        return i2c_smbus_write_byte_data(state->csi_client, reg, value);
 257}
 258
 259static int adv7180_set_video_standard(struct adv7180_state *state,
 260        unsigned int std)
 261{
 262        return state->chip_info->set_std(state, std);
 263}
 264
 265static int adv7180_vpp_write(struct adv7180_state *state, unsigned int reg,
 266        unsigned int value)
 267{
 268        return i2c_smbus_write_byte_data(state->vpp_client, reg, value);
 269}
 270
 271static v4l2_std_id adv7180_std_to_v4l2(u8 status1)
 272{
 273        /* in case V4L2_IN_ST_NO_SIGNAL */
 274        if (!(status1 & ADV7180_STATUS1_IN_LOCK))
 275                return V4L2_STD_UNKNOWN;
 276
 277        switch (status1 & ADV7180_STATUS1_AUTOD_MASK) {
 278        case ADV7180_STATUS1_AUTOD_NTSM_M_J:
 279                return V4L2_STD_NTSC;
 280        case ADV7180_STATUS1_AUTOD_NTSC_4_43:
 281                return V4L2_STD_NTSC_443;
 282        case ADV7180_STATUS1_AUTOD_PAL_M:
 283                return V4L2_STD_PAL_M;
 284        case ADV7180_STATUS1_AUTOD_PAL_60:
 285                return V4L2_STD_PAL_60;
 286        case ADV7180_STATUS1_AUTOD_PAL_B_G:
 287                return V4L2_STD_PAL;
 288        case ADV7180_STATUS1_AUTOD_SECAM:
 289                return V4L2_STD_SECAM;
 290        case ADV7180_STATUS1_AUTOD_PAL_COMB:
 291                return V4L2_STD_PAL_Nc | V4L2_STD_PAL_N;
 292        case ADV7180_STATUS1_AUTOD_SECAM_525:
 293                return V4L2_STD_SECAM;
 294        default:
 295                return V4L2_STD_UNKNOWN;
 296        }
 297}
 298
 299static int v4l2_std_to_adv7180(v4l2_std_id std)
 300{
 301        if (std == V4L2_STD_PAL_60)
 302                return ADV7180_STD_PAL60;
 303        if (std == V4L2_STD_NTSC_443)
 304                return ADV7180_STD_NTSC_443;
 305        if (std == V4L2_STD_PAL_N)
 306                return ADV7180_STD_PAL_N;
 307        if (std == V4L2_STD_PAL_M)
 308                return ADV7180_STD_PAL_M;
 309        if (std == V4L2_STD_PAL_Nc)
 310                return ADV7180_STD_PAL_COMB_N;
 311
 312        if (std & V4L2_STD_PAL)
 313                return ADV7180_STD_PAL_BG;
 314        if (std & V4L2_STD_NTSC)
 315                return ADV7180_STD_NTSC_M;
 316        if (std & V4L2_STD_SECAM)
 317                return ADV7180_STD_PAL_SECAM;
 318
 319        return -EINVAL;
 320}
 321
 322static u32 adv7180_status_to_v4l2(u8 status1)
 323{
 324        if (!(status1 & ADV7180_STATUS1_IN_LOCK))
 325                return V4L2_IN_ST_NO_SIGNAL;
 326
 327        return 0;
 328}
 329
 330static int __adv7180_status(struct adv7180_state *state, u32 *status,
 331                            v4l2_std_id *std)
 332{
 333        int status1 = adv7180_read(state, ADV7180_REG_STATUS1);
 334
 335        if (status1 < 0)
 336                return status1;
 337
 338        if (status)
 339                *status = adv7180_status_to_v4l2(status1);
 340        if (std)
 341                *std = adv7180_std_to_v4l2(status1);
 342
 343        return 0;
 344}
 345
 346static inline struct adv7180_state *to_state(struct v4l2_subdev *sd)
 347{
 348        return container_of(sd, struct adv7180_state, sd);
 349}
 350
 351static int adv7180_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
 352{
 353        struct adv7180_state *state = to_state(sd);
 354        int err = mutex_lock_interruptible(&state->mutex);
 355        if (err)
 356                return err;
 357
 358        if (state->streaming) {
 359                err = -EBUSY;
 360                goto unlock;
 361        }
 362
 363        err = adv7180_set_video_standard(state,
 364                        ADV7180_STD_AD_PAL_BG_NTSC_J_SECAM);
 365        if (err)
 366                goto unlock;
 367
 368        msleep(100);
 369        __adv7180_status(state, NULL, std);
 370
 371        err = v4l2_std_to_adv7180(state->curr_norm);
 372        if (err < 0)
 373                goto unlock;
 374
 375        err = adv7180_set_video_standard(state, err);
 376
 377unlock:
 378        mutex_unlock(&state->mutex);
 379        return err;
 380}
 381
 382static int adv7180_s_routing(struct v4l2_subdev *sd, u32 input,
 383                             u32 output, u32 config)
 384{
 385        struct adv7180_state *state = to_state(sd);
 386        int ret = mutex_lock_interruptible(&state->mutex);
 387
 388        if (ret)
 389                return ret;
 390
 391        if (input > 31 || !(BIT(input) & state->chip_info->valid_input_mask)) {
 392                ret = -EINVAL;
 393                goto out;
 394        }
 395
 396        ret = state->chip_info->select_input(state, input);
 397
 398        if (ret == 0)
 399                state->input = input;
 400out:
 401        mutex_unlock(&state->mutex);
 402        return ret;
 403}
 404
 405static int adv7180_g_input_status(struct v4l2_subdev *sd, u32 *status)
 406{
 407        struct adv7180_state *state = to_state(sd);
 408        int ret = mutex_lock_interruptible(&state->mutex);
 409        if (ret)
 410                return ret;
 411
 412        ret = __adv7180_status(state, status, NULL);
 413        mutex_unlock(&state->mutex);
 414        return ret;
 415}
 416
 417static int adv7180_program_std(struct adv7180_state *state)
 418{
 419        int ret;
 420
 421        ret = v4l2_std_to_adv7180(state->curr_norm);
 422        if (ret < 0)
 423                return ret;
 424
 425        ret = adv7180_set_video_standard(state, ret);
 426        if (ret < 0)
 427                return ret;
 428        return 0;
 429}
 430
 431static int adv7180_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
 432{
 433        struct adv7180_state *state = to_state(sd);
 434        int ret = mutex_lock_interruptible(&state->mutex);
 435
 436        if (ret)
 437                return ret;
 438
 439        /* Make sure we can support this std */
 440        ret = v4l2_std_to_adv7180(std);
 441        if (ret < 0)
 442                goto out;
 443
 444        state->curr_norm = std;
 445
 446        ret = adv7180_program_std(state);
 447out:
 448        mutex_unlock(&state->mutex);
 449        return ret;
 450}
 451
 452static int adv7180_g_std(struct v4l2_subdev *sd, v4l2_std_id *norm)
 453{
 454        struct adv7180_state *state = to_state(sd);
 455
 456        *norm = state->curr_norm;
 457
 458        return 0;
 459}
 460
 461static int adv7180_g_frame_interval(struct v4l2_subdev *sd,
 462                                    struct v4l2_subdev_frame_interval *fi)
 463{
 464        struct adv7180_state *state = to_state(sd);
 465
 466        if (state->curr_norm & V4L2_STD_525_60) {
 467                fi->interval.numerator = 1001;
 468                fi->interval.denominator = 30000;
 469        } else {
 470                fi->interval.numerator = 1;
 471                fi->interval.denominator = 25;
 472        }
 473
 474        return 0;
 475}
 476
 477static void adv7180_set_power_pin(struct adv7180_state *state, bool on)
 478{
 479        if (!state->pwdn_gpio)
 480                return;
 481
 482        if (on) {
 483                gpiod_set_value_cansleep(state->pwdn_gpio, 0);
 484                usleep_range(5000, 10000);
 485        } else {
 486                gpiod_set_value_cansleep(state->pwdn_gpio, 1);
 487        }
 488}
 489
 490static void adv7180_set_reset_pin(struct adv7180_state *state, bool on)
 491{
 492        if (!state->rst_gpio)
 493                return;
 494
 495        if (on) {
 496                gpiod_set_value_cansleep(state->rst_gpio, 1);
 497        } else {
 498                gpiod_set_value_cansleep(state->rst_gpio, 0);
 499                usleep_range(5000, 10000);
 500        }
 501}
 502
 503static int adv7180_set_power(struct adv7180_state *state, bool on)
 504{
 505        u8 val;
 506        int ret;
 507
 508        if (on)
 509                val = ADV7180_PWR_MAN_ON;
 510        else
 511                val = ADV7180_PWR_MAN_OFF;
 512
 513        ret = adv7180_write(state, ADV7180_REG_PWR_MAN, val);
 514        if (ret)
 515                return ret;
 516
 517        if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) {
 518                if (on) {
 519                        adv7180_csi_write(state, 0xDE, 0x02);
 520                        adv7180_csi_write(state, 0xD2, 0xF7);
 521                        adv7180_csi_write(state, 0xD8, 0x65);
 522                        adv7180_csi_write(state, 0xE0, 0x09);
 523                        adv7180_csi_write(state, 0x2C, 0x00);
 524                        if (state->field == V4L2_FIELD_NONE)
 525                                adv7180_csi_write(state, 0x1D, 0x80);
 526                        adv7180_csi_write(state, 0x00, 0x00);
 527                } else {
 528                        adv7180_csi_write(state, 0x00, 0x80);
 529                }
 530        }
 531
 532        return 0;
 533}
 534
 535static int adv7180_s_power(struct v4l2_subdev *sd, int on)
 536{
 537        struct adv7180_state *state = to_state(sd);
 538        int ret;
 539
 540        ret = mutex_lock_interruptible(&state->mutex);
 541        if (ret)
 542                return ret;
 543
 544        ret = adv7180_set_power(state, on);
 545        if (ret == 0)
 546                state->powered = on;
 547
 548        mutex_unlock(&state->mutex);
 549        return ret;
 550}
 551
 552static int adv7180_s_ctrl(struct v4l2_ctrl *ctrl)
 553{
 554        struct v4l2_subdev *sd = to_adv7180_sd(ctrl);
 555        struct adv7180_state *state = to_state(sd);
 556        int ret = mutex_lock_interruptible(&state->mutex);
 557        int val;
 558
 559        if (ret)
 560                return ret;
 561        val = ctrl->val;
 562        switch (ctrl->id) {
 563        case V4L2_CID_BRIGHTNESS:
 564                ret = adv7180_write(state, ADV7180_REG_BRI, val);
 565                break;
 566        case V4L2_CID_HUE:
 567                /*Hue is inverted according to HSL chart */
 568                ret = adv7180_write(state, ADV7180_REG_HUE, -val);
 569                break;
 570        case V4L2_CID_CONTRAST:
 571                ret = adv7180_write(state, ADV7180_REG_CON, val);
 572                break;
 573        case V4L2_CID_SATURATION:
 574                /*
 575                 *This could be V4L2_CID_BLUE_BALANCE/V4L2_CID_RED_BALANCE
 576                 *Let's not confuse the user, everybody understands saturation
 577                 */
 578                ret = adv7180_write(state, ADV7180_REG_SD_SAT_CB, val);
 579                if (ret < 0)
 580                        break;
 581                ret = adv7180_write(state, ADV7180_REG_SD_SAT_CR, val);
 582                break;
 583        case V4L2_CID_ADV_FAST_SWITCH:
 584                if (ctrl->val) {
 585                        /* ADI required write */
 586                        adv7180_write(state, 0x80d9, 0x44);
 587                        adv7180_write(state, ADV7180_REG_FLCONTROL,
 588                                ADV7180_FLCONTROL_FL_ENABLE);
 589                } else {
 590                        /* ADI required write */
 591                        adv7180_write(state, 0x80d9, 0xc4);
 592                        adv7180_write(state, ADV7180_REG_FLCONTROL, 0x00);
 593                }
 594                break;
 595        default:
 596                ret = -EINVAL;
 597        }
 598
 599        mutex_unlock(&state->mutex);
 600        return ret;
 601}
 602
 603static const struct v4l2_ctrl_ops adv7180_ctrl_ops = {
 604        .s_ctrl = adv7180_s_ctrl,
 605};
 606
 607static const struct v4l2_ctrl_config adv7180_ctrl_fast_switch = {
 608        .ops = &adv7180_ctrl_ops,
 609        .id = V4L2_CID_ADV_FAST_SWITCH,
 610        .name = "Fast Switching",
 611        .type = V4L2_CTRL_TYPE_BOOLEAN,
 612        .min = 0,
 613        .max = 1,
 614        .step = 1,
 615};
 616
 617static int adv7180_init_controls(struct adv7180_state *state)
 618{
 619        v4l2_ctrl_handler_init(&state->ctrl_hdl, 4);
 620
 621        v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
 622                          V4L2_CID_BRIGHTNESS, ADV7180_BRI_MIN,
 623                          ADV7180_BRI_MAX, 1, ADV7180_BRI_DEF);
 624        v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
 625                          V4L2_CID_CONTRAST, ADV7180_CON_MIN,
 626                          ADV7180_CON_MAX, 1, ADV7180_CON_DEF);
 627        v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
 628                          V4L2_CID_SATURATION, ADV7180_SAT_MIN,
 629                          ADV7180_SAT_MAX, 1, ADV7180_SAT_DEF);
 630        v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
 631                          V4L2_CID_HUE, ADV7180_HUE_MIN,
 632                          ADV7180_HUE_MAX, 1, ADV7180_HUE_DEF);
 633        v4l2_ctrl_new_custom(&state->ctrl_hdl, &adv7180_ctrl_fast_switch, NULL);
 634
 635        state->sd.ctrl_handler = &state->ctrl_hdl;
 636        if (state->ctrl_hdl.error) {
 637                int err = state->ctrl_hdl.error;
 638
 639                v4l2_ctrl_handler_free(&state->ctrl_hdl);
 640                return err;
 641        }
 642        v4l2_ctrl_handler_setup(&state->ctrl_hdl);
 643
 644        return 0;
 645}
 646static void adv7180_exit_controls(struct adv7180_state *state)
 647{
 648        v4l2_ctrl_handler_free(&state->ctrl_hdl);
 649}
 650
 651static int adv7180_enum_mbus_code(struct v4l2_subdev *sd,
 652                                  struct v4l2_subdev_state *sd_state,
 653                                  struct v4l2_subdev_mbus_code_enum *code)
 654{
 655        if (code->index != 0)
 656                return -EINVAL;
 657
 658        code->code = MEDIA_BUS_FMT_UYVY8_2X8;
 659
 660        return 0;
 661}
 662
 663static int adv7180_mbus_fmt(struct v4l2_subdev *sd,
 664                            struct v4l2_mbus_framefmt *fmt)
 665{
 666        struct adv7180_state *state = to_state(sd);
 667
 668        fmt->code = MEDIA_BUS_FMT_UYVY8_2X8;
 669        fmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
 670        fmt->width = 720;
 671        fmt->height = state->curr_norm & V4L2_STD_525_60 ? 480 : 576;
 672
 673        if (state->field == V4L2_FIELD_ALTERNATE)
 674                fmt->height /= 2;
 675
 676        return 0;
 677}
 678
 679static int adv7180_set_field_mode(struct adv7180_state *state)
 680{
 681        if (!(state->chip_info->flags & ADV7180_FLAG_I2P))
 682                return 0;
 683
 684        if (state->field == V4L2_FIELD_NONE) {
 685                if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) {
 686                        adv7180_csi_write(state, 0x01, 0x20);
 687                        adv7180_csi_write(state, 0x02, 0x28);
 688                        adv7180_csi_write(state, 0x03, 0x38);
 689                        adv7180_csi_write(state, 0x04, 0x30);
 690                        adv7180_csi_write(state, 0x05, 0x30);
 691                        adv7180_csi_write(state, 0x06, 0x80);
 692                        adv7180_csi_write(state, 0x07, 0x70);
 693                        adv7180_csi_write(state, 0x08, 0x50);
 694                }
 695                adv7180_vpp_write(state, 0xa3, 0x00);
 696                adv7180_vpp_write(state, 0x5b, 0x00);
 697                adv7180_vpp_write(state, 0x55, 0x80);
 698        } else {
 699                if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) {
 700                        adv7180_csi_write(state, 0x01, 0x18);
 701                        adv7180_csi_write(state, 0x02, 0x18);
 702                        adv7180_csi_write(state, 0x03, 0x30);
 703                        adv7180_csi_write(state, 0x04, 0x20);
 704                        adv7180_csi_write(state, 0x05, 0x28);
 705                        adv7180_csi_write(state, 0x06, 0x40);
 706                        adv7180_csi_write(state, 0x07, 0x58);
 707                        adv7180_csi_write(state, 0x08, 0x30);
 708                }
 709                adv7180_vpp_write(state, 0xa3, 0x70);
 710                adv7180_vpp_write(state, 0x5b, 0x80);
 711                adv7180_vpp_write(state, 0x55, 0x00);
 712        }
 713
 714        return 0;
 715}
 716
 717static int adv7180_get_pad_format(struct v4l2_subdev *sd,
 718                                  struct v4l2_subdev_state *sd_state,
 719                                  struct v4l2_subdev_format *format)
 720{
 721        struct adv7180_state *state = to_state(sd);
 722
 723        if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
 724                format->format = *v4l2_subdev_get_try_format(sd, sd_state, 0);
 725        } else {
 726                adv7180_mbus_fmt(sd, &format->format);
 727                format->format.field = state->field;
 728        }
 729
 730        return 0;
 731}
 732
 733static int adv7180_set_pad_format(struct v4l2_subdev *sd,
 734                                  struct v4l2_subdev_state *sd_state,
 735                                  struct v4l2_subdev_format *format)
 736{
 737        struct adv7180_state *state = to_state(sd);
 738        struct v4l2_mbus_framefmt *framefmt;
 739        int ret;
 740
 741        switch (format->format.field) {
 742        case V4L2_FIELD_NONE:
 743                if (state->chip_info->flags & ADV7180_FLAG_I2P)
 744                        break;
 745                fallthrough;
 746        default:
 747                format->format.field = V4L2_FIELD_ALTERNATE;
 748                break;
 749        }
 750
 751        ret = adv7180_mbus_fmt(sd,  &format->format);
 752
 753        if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
 754                if (state->field != format->format.field) {
 755                        state->field = format->format.field;
 756                        adv7180_set_power(state, false);
 757                        adv7180_set_field_mode(state);
 758                        adv7180_set_power(state, true);
 759                }
 760        } else {
 761                framefmt = v4l2_subdev_get_try_format(sd, sd_state, 0);
 762                *framefmt = format->format;
 763        }
 764
 765        return ret;
 766}
 767
 768static int adv7180_init_cfg(struct v4l2_subdev *sd,
 769                            struct v4l2_subdev_state *sd_state)
 770{
 771        struct v4l2_subdev_format fmt = {
 772                .which = sd_state ? V4L2_SUBDEV_FORMAT_TRY
 773                : V4L2_SUBDEV_FORMAT_ACTIVE,
 774        };
 775
 776        return adv7180_set_pad_format(sd, sd_state, &fmt);
 777}
 778
 779static int adv7180_get_mbus_config(struct v4l2_subdev *sd,
 780                                   unsigned int pad,
 781                                   struct v4l2_mbus_config *cfg)
 782{
 783        struct adv7180_state *state = to_state(sd);
 784
 785        if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) {
 786                cfg->type = V4L2_MBUS_CSI2_DPHY;
 787                cfg->bus.mipi_csi2.num_data_lanes = 1;
 788                cfg->bus.mipi_csi2.flags = 0;
 789        } else {
 790                /*
 791                 * The ADV7180 sensor supports BT.601/656 output modes.
 792                 * The BT.656 is default and not yet configurable by s/w.
 793                 */
 794                cfg->bus.parallel.flags = V4L2_MBUS_MASTER |
 795                                          V4L2_MBUS_PCLK_SAMPLE_RISING |
 796                                          V4L2_MBUS_DATA_ACTIVE_HIGH;
 797                cfg->type = V4L2_MBUS_BT656;
 798        }
 799
 800        return 0;
 801}
 802
 803static int adv7180_get_skip_frames(struct v4l2_subdev *sd, u32 *frames)
 804{
 805        *frames = ADV7180_NUM_OF_SKIP_FRAMES;
 806
 807        return 0;
 808}
 809
 810static int adv7180_g_pixelaspect(struct v4l2_subdev *sd, struct v4l2_fract *aspect)
 811{
 812        struct adv7180_state *state = to_state(sd);
 813
 814        if (state->curr_norm & V4L2_STD_525_60) {
 815                aspect->numerator = 11;
 816                aspect->denominator = 10;
 817        } else {
 818                aspect->numerator = 54;
 819                aspect->denominator = 59;
 820        }
 821
 822        return 0;
 823}
 824
 825static int adv7180_g_tvnorms(struct v4l2_subdev *sd, v4l2_std_id *norm)
 826{
 827        *norm = V4L2_STD_ALL;
 828        return 0;
 829}
 830
 831static int adv7180_s_stream(struct v4l2_subdev *sd, int enable)
 832{
 833        struct adv7180_state *state = to_state(sd);
 834        int ret;
 835
 836        /* It's always safe to stop streaming, no need to take the lock */
 837        if (!enable) {
 838                state->streaming = enable;
 839                return 0;
 840        }
 841
 842        /* Must wait until querystd released the lock */
 843        ret = mutex_lock_interruptible(&state->mutex);
 844        if (ret)
 845                return ret;
 846        state->streaming = enable;
 847        mutex_unlock(&state->mutex);
 848        return 0;
 849}
 850
 851static int adv7180_subscribe_event(struct v4l2_subdev *sd,
 852                                   struct v4l2_fh *fh,
 853                                   struct v4l2_event_subscription *sub)
 854{
 855        switch (sub->type) {
 856        case V4L2_EVENT_SOURCE_CHANGE:
 857                return v4l2_src_change_event_subdev_subscribe(sd, fh, sub);
 858        case V4L2_EVENT_CTRL:
 859                return v4l2_ctrl_subdev_subscribe_event(sd, fh, sub);
 860        default:
 861                return -EINVAL;
 862        }
 863}
 864
 865static const struct v4l2_subdev_video_ops adv7180_video_ops = {
 866        .s_std = adv7180_s_std,
 867        .g_std = adv7180_g_std,
 868        .g_frame_interval = adv7180_g_frame_interval,
 869        .querystd = adv7180_querystd,
 870        .g_input_status = adv7180_g_input_status,
 871        .s_routing = adv7180_s_routing,
 872        .g_pixelaspect = adv7180_g_pixelaspect,
 873        .g_tvnorms = adv7180_g_tvnorms,
 874        .s_stream = adv7180_s_stream,
 875};
 876
 877static const struct v4l2_subdev_core_ops adv7180_core_ops = {
 878        .s_power = adv7180_s_power,
 879        .subscribe_event = adv7180_subscribe_event,
 880        .unsubscribe_event = v4l2_event_subdev_unsubscribe,
 881};
 882
 883static const struct v4l2_subdev_pad_ops adv7180_pad_ops = {
 884        .init_cfg = adv7180_init_cfg,
 885        .enum_mbus_code = adv7180_enum_mbus_code,
 886        .set_fmt = adv7180_set_pad_format,
 887        .get_fmt = adv7180_get_pad_format,
 888        .get_mbus_config = adv7180_get_mbus_config,
 889};
 890
 891static const struct v4l2_subdev_sensor_ops adv7180_sensor_ops = {
 892        .g_skip_frames = adv7180_get_skip_frames,
 893};
 894
 895static const struct v4l2_subdev_ops adv7180_ops = {
 896        .core = &adv7180_core_ops,
 897        .video = &adv7180_video_ops,
 898        .pad = &adv7180_pad_ops,
 899        .sensor = &adv7180_sensor_ops,
 900};
 901
 902static irqreturn_t adv7180_irq(int irq, void *devid)
 903{
 904        struct adv7180_state *state = devid;
 905        u8 isr3;
 906
 907        mutex_lock(&state->mutex);
 908        isr3 = adv7180_read(state, ADV7180_REG_ISR3);
 909        /* clear */
 910        adv7180_write(state, ADV7180_REG_ICR3, isr3);
 911
 912        if (isr3 & ADV7180_IRQ3_AD_CHANGE) {
 913                static const struct v4l2_event src_ch = {
 914                        .type = V4L2_EVENT_SOURCE_CHANGE,
 915                        .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
 916                };
 917
 918                v4l2_subdev_notify_event(&state->sd, &src_ch);
 919        }
 920        mutex_unlock(&state->mutex);
 921
 922        return IRQ_HANDLED;
 923}
 924
 925static int adv7180_init(struct adv7180_state *state)
 926{
 927        int ret;
 928
 929        /* ITU-R BT.656-4 compatible */
 930        ret = adv7180_write(state, ADV7180_REG_EXTENDED_OUTPUT_CONTROL,
 931                        ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS);
 932        if (ret < 0)
 933                return ret;
 934
 935        /* Manually set V bit end position in NTSC mode */
 936        return adv7180_write(state, ADV7180_REG_NTSC_V_BIT_END,
 937                                        ADV7180_NTSC_V_BIT_END_MANUAL_NVEND);
 938}
 939
 940static int adv7180_set_std(struct adv7180_state *state, unsigned int std)
 941{
 942        return adv7180_write(state, ADV7180_REG_INPUT_CONTROL,
 943                (std << 4) | state->input);
 944}
 945
 946static int adv7180_select_input(struct adv7180_state *state, unsigned int input)
 947{
 948        int ret;
 949
 950        ret = adv7180_read(state, ADV7180_REG_INPUT_CONTROL);
 951        if (ret < 0)
 952                return ret;
 953
 954        ret &= ~ADV7180_INPUT_CONTROL_INSEL_MASK;
 955        ret |= input;
 956        return adv7180_write(state, ADV7180_REG_INPUT_CONTROL, ret);
 957}
 958
 959static int adv7182_init(struct adv7180_state *state)
 960{
 961        if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2)
 962                adv7180_write(state, ADV7180_REG_CSI_SLAVE_ADDR,
 963                        ADV7180_DEFAULT_CSI_I2C_ADDR << 1);
 964
 965        if (state->chip_info->flags & ADV7180_FLAG_I2P)
 966                adv7180_write(state, ADV7180_REG_VPP_SLAVE_ADDR,
 967                        ADV7180_DEFAULT_VPP_I2C_ADDR << 1);
 968
 969        if (state->chip_info->flags & ADV7180_FLAG_V2) {
 970                /* ADI recommended writes for improved video quality */
 971                adv7180_write(state, 0x0080, 0x51);
 972                adv7180_write(state, 0x0081, 0x51);
 973                adv7180_write(state, 0x0082, 0x68);
 974        }
 975
 976        /* ADI required writes */
 977        if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) {
 978                adv7180_write(state, ADV7180_REG_OUTPUT_CONTROL, 0x4e);
 979                adv7180_write(state, ADV7180_REG_EXTENDED_OUTPUT_CONTROL, 0x57);
 980                adv7180_write(state, ADV7180_REG_CTRL_2, 0xc0);
 981        } else {
 982                if (state->chip_info->flags & ADV7180_FLAG_V2) {
 983                        if (state->force_bt656_4) {
 984                                /* ITU-R BT.656-4 compatible */
 985                                adv7180_write(state,
 986                                              ADV7180_REG_EXTENDED_OUTPUT_CONTROL,
 987                                              ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS);
 988                                /* Manually set NEWAVMODE */
 989                                adv7180_write(state,
 990                                              ADV7180_REG_VSYNC_FIELD_CTL_1,
 991                                              ADV7180_VSYNC_FIELD_CTL_1_NEWAV);
 992                                /* Manually set V bit end position in NTSC mode */
 993                                adv7180_write(state,
 994                                              ADV7180_REG_NTSC_V_BIT_END,
 995                                              ADV7180_NTSC_V_BIT_END_MANUAL_NVEND);
 996                        } else {
 997                                adv7180_write(state,
 998                                              ADV7180_REG_EXTENDED_OUTPUT_CONTROL,
 999                                              0x17);
1000                        }
1001                }
1002                else
1003                        adv7180_write(state,
1004                                      ADV7180_REG_EXTENDED_OUTPUT_CONTROL,
1005                                      0x07);
1006                adv7180_write(state, ADV7180_REG_OUTPUT_CONTROL, 0x0c);
1007                adv7180_write(state, ADV7180_REG_CTRL_2, 0x40);
1008        }
1009
1010        adv7180_write(state, 0x0013, 0x00);
1011
1012        return 0;
1013}
1014
1015static int adv7182_set_std(struct adv7180_state *state, unsigned int std)
1016{
1017        return adv7180_write(state, ADV7182_REG_INPUT_VIDSEL, std << 4);
1018}
1019
1020enum adv7182_input_type {
1021        ADV7182_INPUT_TYPE_CVBS,
1022        ADV7182_INPUT_TYPE_DIFF_CVBS,
1023        ADV7182_INPUT_TYPE_SVIDEO,
1024        ADV7182_INPUT_TYPE_YPBPR,
1025};
1026
1027static enum adv7182_input_type adv7182_get_input_type(unsigned int input)
1028{
1029        switch (input) {
1030        case ADV7182_INPUT_CVBS_AIN1:
1031        case ADV7182_INPUT_CVBS_AIN2:
1032        case ADV7182_INPUT_CVBS_AIN3:
1033        case ADV7182_INPUT_CVBS_AIN4:
1034        case ADV7182_INPUT_CVBS_AIN5:
1035        case ADV7182_INPUT_CVBS_AIN6:
1036        case ADV7182_INPUT_CVBS_AIN7:
1037        case ADV7182_INPUT_CVBS_AIN8:
1038                return ADV7182_INPUT_TYPE_CVBS;
1039        case ADV7182_INPUT_SVIDEO_AIN1_AIN2:
1040        case ADV7182_INPUT_SVIDEO_AIN3_AIN4:
1041        case ADV7182_INPUT_SVIDEO_AIN5_AIN6:
1042        case ADV7182_INPUT_SVIDEO_AIN7_AIN8:
1043                return ADV7182_INPUT_TYPE_SVIDEO;
1044        case ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3:
1045        case ADV7182_INPUT_YPRPB_AIN4_AIN5_AIN6:
1046                return ADV7182_INPUT_TYPE_YPBPR;
1047        case ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2:
1048        case ADV7182_INPUT_DIFF_CVBS_AIN3_AIN4:
1049        case ADV7182_INPUT_DIFF_CVBS_AIN5_AIN6:
1050        case ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8:
1051                return ADV7182_INPUT_TYPE_DIFF_CVBS;
1052        default: /* Will never happen */
1053                return 0;
1054        }
1055}
1056
1057/* ADI recommended writes to registers 0x52, 0x53, 0x54 */
1058static unsigned int adv7182_lbias_settings[][3] = {
1059        [ADV7182_INPUT_TYPE_CVBS] = { 0xCB, 0x4E, 0x80 },
1060        [ADV7182_INPUT_TYPE_DIFF_CVBS] = { 0xC0, 0x4E, 0x80 },
1061        [ADV7182_INPUT_TYPE_SVIDEO] = { 0x0B, 0xCE, 0x80 },
1062        [ADV7182_INPUT_TYPE_YPBPR] = { 0x0B, 0x4E, 0xC0 },
1063};
1064
1065static unsigned int adv7280_lbias_settings[][3] = {
1066        [ADV7182_INPUT_TYPE_CVBS] = { 0xCD, 0x4E, 0x80 },
1067        [ADV7182_INPUT_TYPE_DIFF_CVBS] = { 0xC0, 0x4E, 0x80 },
1068        [ADV7182_INPUT_TYPE_SVIDEO] = { 0x0B, 0xCE, 0x80 },
1069        [ADV7182_INPUT_TYPE_YPBPR] = { 0x0B, 0x4E, 0xC0 },
1070};
1071
1072static int adv7182_select_input(struct adv7180_state *state, unsigned int input)
1073{
1074        enum adv7182_input_type input_type;
1075        unsigned int *lbias;
1076        unsigned int i;
1077        int ret;
1078
1079        ret = adv7180_write(state, ADV7180_REG_INPUT_CONTROL, input);
1080        if (ret)
1081                return ret;
1082
1083        /* Reset clamp circuitry - ADI recommended writes */
1084        adv7180_write(state, ADV7180_REG_RST_CLAMP, 0x00);
1085        adv7180_write(state, ADV7180_REG_RST_CLAMP, 0xff);
1086
1087        input_type = adv7182_get_input_type(input);
1088
1089        switch (input_type) {
1090        case ADV7182_INPUT_TYPE_CVBS:
1091        case ADV7182_INPUT_TYPE_DIFF_CVBS:
1092                /* ADI recommends to use the SH1 filter */
1093                adv7180_write(state, ADV7180_REG_SHAP_FILTER_CTL_1, 0x41);
1094                break;
1095        default:
1096                adv7180_write(state, ADV7180_REG_SHAP_FILTER_CTL_1, 0x01);
1097                break;
1098        }
1099
1100        if (state->chip_info->flags & ADV7180_FLAG_V2)
1101                lbias = adv7280_lbias_settings[input_type];
1102        else
1103                lbias = adv7182_lbias_settings[input_type];
1104
1105        for (i = 0; i < ARRAY_SIZE(adv7182_lbias_settings[0]); i++)
1106                adv7180_write(state, ADV7180_REG_CVBS_TRIM + i, lbias[i]);
1107
1108        if (input_type == ADV7182_INPUT_TYPE_DIFF_CVBS) {
1109                /* ADI required writes to make differential CVBS work */
1110                adv7180_write(state, ADV7180_REG_RES_CIR, 0xa8);
1111                adv7180_write(state, ADV7180_REG_CLAMP_ADJ, 0x90);
1112                adv7180_write(state, ADV7180_REG_DIFF_MODE, 0xb0);
1113                adv7180_write(state, ADV7180_REG_AGC_ADJ1, 0x08);
1114                adv7180_write(state, ADV7180_REG_AGC_ADJ2, 0xa0);
1115        } else {
1116                adv7180_write(state, ADV7180_REG_RES_CIR, 0xf0);
1117                adv7180_write(state, ADV7180_REG_CLAMP_ADJ, 0xd0);
1118                adv7180_write(state, ADV7180_REG_DIFF_MODE, 0x10);
1119                adv7180_write(state, ADV7180_REG_AGC_ADJ1, 0x9c);
1120                adv7180_write(state, ADV7180_REG_AGC_ADJ2, 0x00);
1121        }
1122
1123        return 0;
1124}
1125
1126static const struct adv7180_chip_info adv7180_info = {
1127        .flags = ADV7180_FLAG_RESET_POWERED,
1128        /* We cannot discriminate between LQFP and 40-pin LFCSP, so accept
1129         * all inputs and let the card driver take care of validation
1130         */
1131        .valid_input_mask = BIT(ADV7180_INPUT_CVBS_AIN1) |
1132                BIT(ADV7180_INPUT_CVBS_AIN2) |
1133                BIT(ADV7180_INPUT_CVBS_AIN3) |
1134                BIT(ADV7180_INPUT_CVBS_AIN4) |
1135                BIT(ADV7180_INPUT_CVBS_AIN5) |
1136                BIT(ADV7180_INPUT_CVBS_AIN6) |
1137                BIT(ADV7180_INPUT_SVIDEO_AIN1_AIN2) |
1138                BIT(ADV7180_INPUT_SVIDEO_AIN3_AIN4) |
1139                BIT(ADV7180_INPUT_SVIDEO_AIN5_AIN6) |
1140                BIT(ADV7180_INPUT_YPRPB_AIN1_AIN2_AIN3) |
1141                BIT(ADV7180_INPUT_YPRPB_AIN4_AIN5_AIN6),
1142        .init = adv7180_init,
1143        .set_std = adv7180_set_std,
1144        .select_input = adv7180_select_input,
1145};
1146
1147static const struct adv7180_chip_info adv7182_info = {
1148        .valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1149                BIT(ADV7182_INPUT_CVBS_AIN2) |
1150                BIT(ADV7182_INPUT_CVBS_AIN3) |
1151                BIT(ADV7182_INPUT_CVBS_AIN4) |
1152                BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1153                BIT(ADV7182_INPUT_SVIDEO_AIN3_AIN4) |
1154                BIT(ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3) |
1155                BIT(ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2) |
1156                BIT(ADV7182_INPUT_DIFF_CVBS_AIN3_AIN4),
1157        .init = adv7182_init,
1158        .set_std = adv7182_set_std,
1159        .select_input = adv7182_select_input,
1160};
1161
1162static const struct adv7180_chip_info adv7280_info = {
1163        .flags = ADV7180_FLAG_V2 | ADV7180_FLAG_I2P,
1164        .valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1165                BIT(ADV7182_INPUT_CVBS_AIN2) |
1166                BIT(ADV7182_INPUT_CVBS_AIN3) |
1167                BIT(ADV7182_INPUT_CVBS_AIN4) |
1168                BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1169                BIT(ADV7182_INPUT_SVIDEO_AIN3_AIN4) |
1170                BIT(ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3),
1171        .init = adv7182_init,
1172        .set_std = adv7182_set_std,
1173        .select_input = adv7182_select_input,
1174};
1175
1176static const struct adv7180_chip_info adv7280_m_info = {
1177        .flags = ADV7180_FLAG_V2 | ADV7180_FLAG_MIPI_CSI2 | ADV7180_FLAG_I2P,
1178        .valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1179                BIT(ADV7182_INPUT_CVBS_AIN2) |
1180                BIT(ADV7182_INPUT_CVBS_AIN3) |
1181                BIT(ADV7182_INPUT_CVBS_AIN4) |
1182                BIT(ADV7182_INPUT_CVBS_AIN5) |
1183                BIT(ADV7182_INPUT_CVBS_AIN6) |
1184                BIT(ADV7182_INPUT_CVBS_AIN7) |
1185                BIT(ADV7182_INPUT_CVBS_AIN8) |
1186                BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1187                BIT(ADV7182_INPUT_SVIDEO_AIN3_AIN4) |
1188                BIT(ADV7182_INPUT_SVIDEO_AIN5_AIN6) |
1189                BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) |
1190                BIT(ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3) |
1191                BIT(ADV7182_INPUT_YPRPB_AIN4_AIN5_AIN6),
1192        .init = adv7182_init,
1193        .set_std = adv7182_set_std,
1194        .select_input = adv7182_select_input,
1195};
1196
1197static const struct adv7180_chip_info adv7281_info = {
1198        .flags = ADV7180_FLAG_V2 | ADV7180_FLAG_MIPI_CSI2,
1199        .valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1200                BIT(ADV7182_INPUT_CVBS_AIN2) |
1201                BIT(ADV7182_INPUT_CVBS_AIN7) |
1202                BIT(ADV7182_INPUT_CVBS_AIN8) |
1203                BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1204                BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) |
1205                BIT(ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2) |
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 adv7281_m_info = {
1213        .flags = ADV7180_FLAG_V2 | ADV7180_FLAG_MIPI_CSI2,
1214        .valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1215                BIT(ADV7182_INPUT_CVBS_AIN2) |
1216                BIT(ADV7182_INPUT_CVBS_AIN3) |
1217                BIT(ADV7182_INPUT_CVBS_AIN4) |
1218                BIT(ADV7182_INPUT_CVBS_AIN7) |
1219                BIT(ADV7182_INPUT_CVBS_AIN8) |
1220                BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1221                BIT(ADV7182_INPUT_SVIDEO_AIN3_AIN4) |
1222                BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) |
1223                BIT(ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3) |
1224                BIT(ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2) |
1225                BIT(ADV7182_INPUT_DIFF_CVBS_AIN3_AIN4) |
1226                BIT(ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8),
1227        .init = adv7182_init,
1228        .set_std = adv7182_set_std,
1229        .select_input = adv7182_select_input,
1230};
1231
1232static const struct adv7180_chip_info adv7281_ma_info = {
1233        .flags = ADV7180_FLAG_V2 | ADV7180_FLAG_MIPI_CSI2,
1234        .valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1235                BIT(ADV7182_INPUT_CVBS_AIN2) |
1236                BIT(ADV7182_INPUT_CVBS_AIN3) |
1237                BIT(ADV7182_INPUT_CVBS_AIN4) |
1238                BIT(ADV7182_INPUT_CVBS_AIN5) |
1239                BIT(ADV7182_INPUT_CVBS_AIN6) |
1240                BIT(ADV7182_INPUT_CVBS_AIN7) |
1241                BIT(ADV7182_INPUT_CVBS_AIN8) |
1242                BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1243                BIT(ADV7182_INPUT_SVIDEO_AIN3_AIN4) |
1244                BIT(ADV7182_INPUT_SVIDEO_AIN5_AIN6) |
1245                BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) |
1246                BIT(ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3) |
1247                BIT(ADV7182_INPUT_YPRPB_AIN4_AIN5_AIN6) |
1248                BIT(ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2) |
1249                BIT(ADV7182_INPUT_DIFF_CVBS_AIN3_AIN4) |
1250                BIT(ADV7182_INPUT_DIFF_CVBS_AIN5_AIN6) |
1251                BIT(ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8),
1252        .init = adv7182_init,
1253        .set_std = adv7182_set_std,
1254        .select_input = adv7182_select_input,
1255};
1256
1257static const struct adv7180_chip_info adv7282_info = {
1258        .flags = ADV7180_FLAG_V2 | ADV7180_FLAG_I2P,
1259        .valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1260                BIT(ADV7182_INPUT_CVBS_AIN2) |
1261                BIT(ADV7182_INPUT_CVBS_AIN7) |
1262                BIT(ADV7182_INPUT_CVBS_AIN8) |
1263                BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1264                BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) |
1265                BIT(ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2) |
1266                BIT(ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8),
1267        .init = adv7182_init,
1268        .set_std = adv7182_set_std,
1269        .select_input = adv7182_select_input,
1270};
1271
1272static const struct adv7180_chip_info adv7282_m_info = {
1273        .flags = ADV7180_FLAG_V2 | ADV7180_FLAG_MIPI_CSI2 | ADV7180_FLAG_I2P,
1274        .valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) |
1275                BIT(ADV7182_INPUT_CVBS_AIN2) |
1276                BIT(ADV7182_INPUT_CVBS_AIN3) |
1277                BIT(ADV7182_INPUT_CVBS_AIN4) |
1278                BIT(ADV7182_INPUT_CVBS_AIN7) |
1279                BIT(ADV7182_INPUT_CVBS_AIN8) |
1280                BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
1281                BIT(ADV7182_INPUT_SVIDEO_AIN3_AIN4) |
1282                BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) |
1283                BIT(ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2) |
1284                BIT(ADV7182_INPUT_DIFF_CVBS_AIN3_AIN4) |
1285                BIT(ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8),
1286        .init = adv7182_init,
1287        .set_std = adv7182_set_std,
1288        .select_input = adv7182_select_input,
1289};
1290
1291static int init_device(struct adv7180_state *state)
1292{
1293        int ret;
1294
1295        mutex_lock(&state->mutex);
1296
1297        adv7180_set_power_pin(state, true);
1298        adv7180_set_reset_pin(state, false);
1299
1300        adv7180_write(state, ADV7180_REG_PWR_MAN, ADV7180_PWR_MAN_RES);
1301        usleep_range(5000, 10000);
1302
1303        ret = state->chip_info->init(state);
1304        if (ret)
1305                goto out_unlock;
1306
1307        ret = adv7180_program_std(state);
1308        if (ret)
1309                goto out_unlock;
1310
1311        adv7180_set_field_mode(state);
1312
1313        /* register for interrupts */
1314        if (state->irq > 0) {
1315                /* config the Interrupt pin to be active low */
1316                ret = adv7180_write(state, ADV7180_REG_ICONF1,
1317                                                ADV7180_ICONF1_ACTIVE_LOW |
1318                                                ADV7180_ICONF1_PSYNC_ONLY);
1319                if (ret < 0)
1320                        goto out_unlock;
1321
1322                ret = adv7180_write(state, ADV7180_REG_IMR1, 0);
1323                if (ret < 0)
1324                        goto out_unlock;
1325
1326                ret = adv7180_write(state, ADV7180_REG_IMR2, 0);
1327                if (ret < 0)
1328                        goto out_unlock;
1329
1330                /* enable AD change interrupts interrupts */
1331                ret = adv7180_write(state, ADV7180_REG_IMR3,
1332                                                ADV7180_IRQ3_AD_CHANGE);
1333                if (ret < 0)
1334                        goto out_unlock;
1335
1336                ret = adv7180_write(state, ADV7180_REG_IMR4, 0);
1337                if (ret < 0)
1338                        goto out_unlock;
1339        }
1340
1341out_unlock:
1342        mutex_unlock(&state->mutex);
1343
1344        return ret;
1345}
1346
1347static int adv7180_probe(struct i2c_client *client,
1348                         const struct i2c_device_id *id)
1349{
1350        struct device_node *np = client->dev.of_node;
1351        struct adv7180_state *state;
1352        struct v4l2_subdev *sd;
1353        int ret;
1354
1355        /* Check if the adapter supports the needed features */
1356        if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1357                return -EIO;
1358
1359        state = devm_kzalloc(&client->dev, sizeof(*state), GFP_KERNEL);
1360        if (state == NULL)
1361                return -ENOMEM;
1362
1363        state->client = client;
1364        state->field = V4L2_FIELD_ALTERNATE;
1365        state->chip_info = (struct adv7180_chip_info *)id->driver_data;
1366
1367        state->pwdn_gpio = devm_gpiod_get_optional(&client->dev, "powerdown",
1368                                                   GPIOD_OUT_HIGH);
1369        if (IS_ERR(state->pwdn_gpio)) {
1370                ret = PTR_ERR(state->pwdn_gpio);
1371                v4l_err(client, "request for power pin failed: %d\n", ret);
1372                return ret;
1373        }
1374
1375        state->rst_gpio = devm_gpiod_get_optional(&client->dev, "reset",
1376                                                  GPIOD_OUT_HIGH);
1377        if (IS_ERR(state->rst_gpio)) {
1378                ret = PTR_ERR(state->rst_gpio);
1379                v4l_err(client, "request for reset pin failed: %d\n", ret);
1380                return ret;
1381        }
1382
1383        if (of_property_read_bool(np, "adv,force-bt656-4"))
1384                state->force_bt656_4 = true;
1385
1386        if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) {
1387                state->csi_client = i2c_new_dummy_device(client->adapter,
1388                                ADV7180_DEFAULT_CSI_I2C_ADDR);
1389                if (IS_ERR(state->csi_client))
1390                        return PTR_ERR(state->csi_client);
1391        }
1392
1393        if (state->chip_info->flags & ADV7180_FLAG_I2P) {
1394                state->vpp_client = i2c_new_dummy_device(client->adapter,
1395                                ADV7180_DEFAULT_VPP_I2C_ADDR);
1396                if (IS_ERR(state->vpp_client)) {
1397                        ret = PTR_ERR(state->vpp_client);
1398                        goto err_unregister_csi_client;
1399                }
1400        }
1401
1402        state->irq = client->irq;
1403        mutex_init(&state->mutex);
1404        state->curr_norm = V4L2_STD_NTSC;
1405        if (state->chip_info->flags & ADV7180_FLAG_RESET_POWERED)
1406                state->powered = true;
1407        else
1408                state->powered = false;
1409        state->input = 0;
1410        sd = &state->sd;
1411        v4l2_i2c_subdev_init(sd, client, &adv7180_ops);
1412        sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS;
1413
1414        ret = adv7180_init_controls(state);
1415        if (ret)
1416                goto err_unregister_vpp_client;
1417
1418        state->pad.flags = MEDIA_PAD_FL_SOURCE;
1419        sd->entity.function = MEDIA_ENT_F_ATV_DECODER;
1420        ret = media_entity_pads_init(&sd->entity, 1, &state->pad);
1421        if (ret)
1422                goto err_free_ctrl;
1423
1424        ret = init_device(state);
1425        if (ret)
1426                goto err_media_entity_cleanup;
1427
1428        if (state->irq) {
1429                ret = request_threaded_irq(client->irq, NULL, adv7180_irq,
1430                                           IRQF_ONESHOT | IRQF_TRIGGER_FALLING,
1431                                           KBUILD_MODNAME, state);
1432                if (ret)
1433                        goto err_media_entity_cleanup;
1434        }
1435
1436        ret = v4l2_async_register_subdev(sd);
1437        if (ret)
1438                goto err_free_irq;
1439
1440        mutex_lock(&state->mutex);
1441        ret = adv7180_read(state, ADV7180_REG_IDENT);
1442        mutex_unlock(&state->mutex);
1443        if (ret < 0)
1444                goto err_v4l2_async_unregister;
1445
1446        v4l_info(client, "chip id 0x%x found @ 0x%02x (%s)\n",
1447                 ret, client->addr, client->adapter->name);
1448
1449        return 0;
1450
1451err_v4l2_async_unregister:
1452        v4l2_async_unregister_subdev(sd);
1453err_free_irq:
1454        if (state->irq > 0)
1455                free_irq(client->irq, state);
1456err_media_entity_cleanup:
1457        media_entity_cleanup(&sd->entity);
1458err_free_ctrl:
1459        adv7180_exit_controls(state);
1460err_unregister_vpp_client:
1461        i2c_unregister_device(state->vpp_client);
1462err_unregister_csi_client:
1463        i2c_unregister_device(state->csi_client);
1464        mutex_destroy(&state->mutex);
1465        return ret;
1466}
1467
1468static int adv7180_remove(struct i2c_client *client)
1469{
1470        struct v4l2_subdev *sd = i2c_get_clientdata(client);
1471        struct adv7180_state *state = to_state(sd);
1472
1473        v4l2_async_unregister_subdev(sd);
1474
1475        if (state->irq > 0)
1476                free_irq(client->irq, state);
1477
1478        media_entity_cleanup(&sd->entity);
1479        adv7180_exit_controls(state);
1480
1481        i2c_unregister_device(state->vpp_client);
1482        i2c_unregister_device(state->csi_client);
1483
1484        adv7180_set_reset_pin(state, true);
1485        adv7180_set_power_pin(state, false);
1486
1487        mutex_destroy(&state->mutex);
1488
1489        return 0;
1490}
1491
1492static const struct i2c_device_id adv7180_id[] = {
1493        { "adv7180", (kernel_ulong_t)&adv7180_info },
1494        { "adv7180cp", (kernel_ulong_t)&adv7180_info },
1495        { "adv7180st", (kernel_ulong_t)&adv7180_info },
1496        { "adv7182", (kernel_ulong_t)&adv7182_info },
1497        { "adv7280", (kernel_ulong_t)&adv7280_info },
1498        { "adv7280-m", (kernel_ulong_t)&adv7280_m_info },
1499        { "adv7281", (kernel_ulong_t)&adv7281_info },
1500        { "adv7281-m", (kernel_ulong_t)&adv7281_m_info },
1501        { "adv7281-ma", (kernel_ulong_t)&adv7281_ma_info },
1502        { "adv7282", (kernel_ulong_t)&adv7282_info },
1503        { "adv7282-m", (kernel_ulong_t)&adv7282_m_info },
1504        {},
1505};
1506MODULE_DEVICE_TABLE(i2c, adv7180_id);
1507
1508#ifdef CONFIG_PM_SLEEP
1509static int adv7180_suspend(struct device *dev)
1510{
1511        struct v4l2_subdev *sd = dev_get_drvdata(dev);
1512        struct adv7180_state *state = to_state(sd);
1513
1514        return adv7180_set_power(state, false);
1515}
1516
1517static int adv7180_resume(struct device *dev)
1518{
1519        struct v4l2_subdev *sd = dev_get_drvdata(dev);
1520        struct adv7180_state *state = to_state(sd);
1521        int ret;
1522
1523        ret = init_device(state);
1524        if (ret < 0)
1525                return ret;
1526
1527        ret = adv7180_set_power(state, state->powered);
1528        if (ret)
1529                return ret;
1530
1531        return 0;
1532}
1533
1534static SIMPLE_DEV_PM_OPS(adv7180_pm_ops, adv7180_suspend, adv7180_resume);
1535#define ADV7180_PM_OPS (&adv7180_pm_ops)
1536
1537#else
1538#define ADV7180_PM_OPS NULL
1539#endif
1540
1541#ifdef CONFIG_OF
1542static const struct of_device_id adv7180_of_id[] = {
1543        { .compatible = "adi,adv7180", },
1544        { .compatible = "adi,adv7180cp", },
1545        { .compatible = "adi,adv7180st", },
1546        { .compatible = "adi,adv7182", },
1547        { .compatible = "adi,adv7280", },
1548        { .compatible = "adi,adv7280-m", },
1549        { .compatible = "adi,adv7281", },
1550        { .compatible = "adi,adv7281-m", },
1551        { .compatible = "adi,adv7281-ma", },
1552        { .compatible = "adi,adv7282", },
1553        { .compatible = "adi,adv7282-m", },
1554        { },
1555};
1556
1557MODULE_DEVICE_TABLE(of, adv7180_of_id);
1558#endif
1559
1560static struct i2c_driver adv7180_driver = {
1561        .driver = {
1562                   .name = KBUILD_MODNAME,
1563                   .pm = ADV7180_PM_OPS,
1564                   .of_match_table = of_match_ptr(adv7180_of_id),
1565                   },
1566        .probe = adv7180_probe,
1567        .remove = adv7180_remove,
1568        .id_table = adv7180_id,
1569};
1570
1571module_i2c_driver(adv7180_driver);
1572
1573MODULE_DESCRIPTION("Analog Devices ADV7180 video decoder driver");
1574MODULE_AUTHOR("Mocean Laboratories");
1575MODULE_LICENSE("GPL v2");
1576