linux/sound/soc/codecs/tda7419.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * TDA7419 audio processor driver
   4 *
   5 * Copyright 2018 Konsulko Group
   6 *
   7 * Author: Matt Porter <mporter@konsulko.com>
   8 */
   9
  10#include <linux/i2c.h>
  11#include <linux/init.h>
  12#include <linux/module.h>
  13#include <linux/regmap.h>
  14#include <sound/core.h>
  15#include <sound/control.h>
  16#include <sound/soc.h>
  17#include <sound/tlv.h>
  18
  19#define TDA7419_MAIN_SRC_REG            0x00
  20#define TDA7419_LOUDNESS_REG            0x01
  21#define TDA7419_MUTE_CLK_REG            0x02
  22#define TDA7419_VOLUME_REG              0x03
  23#define TDA7419_TREBLE_REG              0x04
  24#define TDA7419_MIDDLE_REG              0x05
  25#define TDA7419_BASS_REG                0x06
  26#define TDA7419_SECOND_SRC_REG          0x07
  27#define TDA7419_SUB_MID_BASS_REG        0x08
  28#define TDA7419_MIXING_GAIN_REG         0x09
  29#define TDA7419_ATTENUATOR_LF_REG       0x0a
  30#define TDA7419_ATTENUATOR_RF_REG       0x0b
  31#define TDA7419_ATTENUATOR_LR_REG       0x0c
  32#define TDA7419_ATTENUATOR_RR_REG       0x0d
  33#define TDA7419_MIXING_LEVEL_REG        0x0e
  34#define TDA7419_ATTENUATOR_SUB_REG      0x0f
  35#define TDA7419_SA_CLK_AC_REG           0x10
  36#define TDA7419_TESTING_REG             0x11
  37
  38#define TDA7419_MAIN_SRC_SEL            0
  39#define TDA7419_MAIN_SRC_GAIN           3
  40#define TDA7419_MAIN_SRC_AUTOZERO       7
  41
  42#define TDA7419_LOUDNESS_ATTEN          0
  43#define TDA7419_LOUDNESS_CENTER_FREQ    4
  44#define TDA7419_LOUDNESS_BOOST          6
  45#define TDA7419_LOUDNESS_SOFT_STEP      7
  46
  47#define TDA7419_VOLUME_SOFT_STEP        7
  48
  49#define TDA7419_SOFT_MUTE               0
  50#define TDA7419_MUTE_INFLUENCE          1
  51#define TDA7419_SOFT_MUTE_TIME          2
  52#define TDA7419_SOFT_STEP_TIME          4
  53#define TDA7419_CLK_FAST_MODE           7
  54
  55#define TDA7419_TREBLE_CENTER_FREQ      5
  56#define TDA7419_REF_OUT_SELECT          7
  57
  58#define TDA7419_MIDDLE_Q_FACTOR         5
  59#define TDA7419_MIDDLE_SOFT_STEP        7
  60
  61#define TDA7419_BASS_Q_FACTOR           5
  62#define TDA7419_BASS_SOFT_STEP          7
  63
  64#define TDA7419_SECOND_SRC_SEL          0
  65#define TDA7419_SECOND_SRC_GAIN         3
  66#define TDA7419_REAR_SPKR_SRC           7
  67
  68#define TDA7419_SUB_CUT_OFF_FREQ        0
  69#define TDA7419_MIDDLE_CENTER_FREQ      2
  70#define TDA7419_BASS_CENTER_FREQ        4
  71#define TDA7419_BASS_DC_MODE            6
  72#define TDA7419_SMOOTHING_FILTER        7
  73
  74#define TDA7419_MIX_LF                  0
  75#define TDA7419_MIX_RF                  1
  76#define TDA7419_MIX_ENABLE              2
  77#define TDA7419_SUB_ENABLE              3
  78#define TDA7419_HPF_GAIN                4
  79
  80#define TDA7419_SA_Q_FACTOR             0
  81#define TDA7419_RESET_MODE              1
  82#define TDA7419_SA_SOURCE               2
  83#define TDA7419_SA_RUN                  3
  84#define TDA7419_RESET                   4
  85#define TDA7419_CLK_SOURCE              5
  86#define TDA7419_COUPLING_MODE           6
  87
  88struct tda7419_data {
  89        struct regmap *regmap;
  90};
  91
  92static bool tda7419_readable_reg(struct device *dev, unsigned int reg)
  93{
  94        return false;
  95}
  96
  97static const struct reg_default tda7419_regmap_defaults[] = {
  98        { TDA7419_MAIN_SRC_REG, 0xfe },
  99        { TDA7419_LOUDNESS_REG, 0xfe },
 100        { TDA7419_MUTE_CLK_REG, 0xfe },
 101        { TDA7419_VOLUME_REG, 0xfe },
 102        { TDA7419_TREBLE_REG, 0xfe },
 103        { TDA7419_MIDDLE_REG, 0xfe },
 104        { TDA7419_BASS_REG, 0xfe },
 105        { TDA7419_SECOND_SRC_REG, 0xfe },
 106        { TDA7419_SUB_MID_BASS_REG, 0xfe },
 107        { TDA7419_MIXING_GAIN_REG, 0xfe },
 108        { TDA7419_ATTENUATOR_LF_REG, 0xfe },
 109        { TDA7419_ATTENUATOR_RF_REG, 0xfe },
 110        { TDA7419_ATTENUATOR_LR_REG, 0xfe },
 111        { TDA7419_ATTENUATOR_RR_REG, 0xfe },
 112        { TDA7419_MIXING_LEVEL_REG, 0xfe },
 113        { TDA7419_ATTENUATOR_SUB_REG, 0xfe },
 114        { TDA7419_SA_CLK_AC_REG, 0xfe },
 115        { TDA7419_TESTING_REG, 0xfe },
 116};
 117
 118static const struct regmap_config tda7419_regmap_config = {
 119        .reg_bits = 8,
 120        .val_bits = 8,
 121        .max_register = TDA7419_TESTING_REG,
 122        .cache_type = REGCACHE_RBTREE,
 123        .readable_reg = tda7419_readable_reg,
 124        .reg_defaults = tda7419_regmap_defaults,
 125        .num_reg_defaults = ARRAY_SIZE(tda7419_regmap_defaults),
 126};
 127
 128struct tda7419_vol_control {
 129        int min, max;
 130        unsigned int reg, rreg, mask, thresh;
 131        unsigned int invert:1;
 132};
 133
 134static inline bool tda7419_vol_is_stereo(struct tda7419_vol_control *tvc)
 135{
 136        if (tvc->reg == tvc->rreg)
 137                return false;
 138
 139        return true;
 140}
 141
 142static int tda7419_vol_info(struct snd_kcontrol *kcontrol,
 143        struct snd_ctl_elem_info *uinfo)
 144{
 145        struct tda7419_vol_control *tvc =
 146                (struct tda7419_vol_control *)kcontrol->private_value;
 147
 148        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 149        uinfo->count = tda7419_vol_is_stereo(tvc) ? 2 : 1;
 150        uinfo->value.integer.min = tvc->min;
 151        uinfo->value.integer.max = tvc->max;
 152
 153        return 0;
 154}
 155
 156static inline int tda7419_vol_get_value(int val, unsigned int mask,
 157                                        int min, int thresh,
 158                                        unsigned int invert)
 159{
 160        val &= mask;
 161        if (val < thresh) {
 162                if (invert)
 163                        val = 0 - val;
 164        } else if (val > thresh) {
 165                if (invert)
 166                        val = val - thresh;
 167                else
 168                        val = thresh - val;
 169        }
 170
 171        if (val < min)
 172                val = min;
 173
 174        return val;
 175}
 176
 177static int tda7419_vol_get(struct snd_kcontrol *kcontrol,
 178                           struct snd_ctl_elem_value *ucontrol)
 179{
 180        struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
 181        struct tda7419_vol_control *tvc =
 182                (struct tda7419_vol_control *)kcontrol->private_value;
 183        unsigned int reg = tvc->reg;
 184        unsigned int rreg = tvc->rreg;
 185        unsigned int mask = tvc->mask;
 186        int min = tvc->min;
 187        int thresh = tvc->thresh;
 188        unsigned int invert = tvc->invert;
 189        int val;
 190
 191        val = snd_soc_component_read(component, reg);
 192        ucontrol->value.integer.value[0] =
 193                tda7419_vol_get_value(val, mask, min, thresh, invert);
 194
 195        if (tda7419_vol_is_stereo(tvc)) {
 196                val = snd_soc_component_read(component, rreg);
 197                ucontrol->value.integer.value[1] =
 198                        tda7419_vol_get_value(val, mask, min, thresh, invert);
 199        }
 200
 201        return 0;
 202}
 203
 204static inline int tda7419_vol_put_value(int val, int thresh,
 205                                        unsigned int invert)
 206{
 207        if (val < 0) {
 208                if (invert)
 209                        val = abs(val);
 210                else
 211                        val = thresh - val;
 212        } else if ((val > 0) && invert) {
 213                val += thresh;
 214        }
 215
 216        return val;
 217}
 218
 219static int tda7419_vol_put(struct snd_kcontrol *kcontrol,
 220                           struct snd_ctl_elem_value *ucontrol)
 221{
 222        struct snd_soc_component *component =
 223                snd_kcontrol_chip(kcontrol);
 224        struct tda7419_vol_control *tvc =
 225                (struct tda7419_vol_control *)kcontrol->private_value;
 226        unsigned int reg = tvc->reg;
 227        unsigned int rreg = tvc->rreg;
 228        unsigned int mask = tvc->mask;
 229        int thresh = tvc->thresh;
 230        unsigned int invert = tvc->invert;
 231        int val;
 232        int ret;
 233
 234        val = tda7419_vol_put_value(ucontrol->value.integer.value[0],
 235                                    thresh, invert);
 236        ret = snd_soc_component_update_bits(component, reg,
 237                                            mask, val);
 238        if (ret < 0)
 239                return ret;
 240
 241        if (tda7419_vol_is_stereo(tvc)) {
 242                val = tda7419_vol_put_value(ucontrol->value.integer.value[1],
 243                                            thresh, invert);
 244                ret = snd_soc_component_update_bits(component, rreg,
 245                                                    mask, val);
 246        }
 247
 248        return ret;
 249}
 250
 251#define TDA7419_SINGLE_VALUE(xreg, xmask, xmin, xmax, xthresh, xinvert) \
 252        ((unsigned long)&(struct tda7419_vol_control) \
 253        {.reg = xreg, .rreg = xreg, .mask = xmask, .min = xmin, \
 254         .max = xmax, .thresh = xthresh, .invert = xinvert})
 255
 256#define TDA7419_DOUBLE_R_VALUE(xregl, xregr, xmask, xmin, xmax, xthresh, \
 257                               xinvert) \
 258        ((unsigned long)&(struct tda7419_vol_control) \
 259        {.reg = xregl, .rreg = xregr, .mask = xmask, .min = xmin, \
 260         .max = xmax, .thresh = xthresh, .invert = xinvert})
 261
 262#define TDA7419_SINGLE_TLV(xname, xreg, xmask, xmin, xmax, xthresh, \
 263                           xinvert, xtlv_array) \
 264{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
 265        .name = xname, \
 266        .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 267                SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 268        .tlv.p = (xtlv_array), \
 269        .info = tda7419_vol_info, \
 270        .get = tda7419_vol_get, \
 271        .put = tda7419_vol_put, \
 272        .private_value = TDA7419_SINGLE_VALUE(xreg, xmask, xmin, \
 273                                              xmax, xthresh, xinvert), \
 274}
 275
 276#define TDA7419_DOUBLE_R_TLV(xname, xregl, xregr, xmask, xmin, xmax, \
 277                             xthresh, xinvert, xtlv_array) \
 278{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
 279        .name = xname, \
 280        .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 281                SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 282        .tlv.p = (xtlv_array), \
 283        .info = tda7419_vol_info, \
 284        .get = tda7419_vol_get, \
 285        .put = tda7419_vol_put, \
 286        .private_value = TDA7419_DOUBLE_R_VALUE(xregl, xregr, xmask, \
 287                                                xmin, xmax, xthresh, \
 288                                                xinvert), \
 289}
 290
 291static const char * const enum_src_sel[] = {
 292        "QD", "SE1", "SE2", "SE3", "SE", "Mute", "Mute", "Mute"};
 293static SOC_ENUM_SINGLE_DECL(soc_enum_main_src_sel,
 294        TDA7419_MAIN_SRC_REG, TDA7419_MAIN_SRC_SEL, enum_src_sel);
 295static const struct snd_kcontrol_new soc_mux_main_src_sel =
 296        SOC_DAPM_ENUM("Main Source Select", soc_enum_main_src_sel);
 297static DECLARE_TLV_DB_SCALE(tlv_src_gain, 0, 100, 0);
 298static DECLARE_TLV_DB_SCALE(tlv_loudness_atten, -1500, 100, 0);
 299static const char * const enum_loudness_center_freq[] = {
 300        "Flat", "400 Hz", "800 Hz", "2400 Hz"};
 301static SOC_ENUM_SINGLE_DECL(soc_enum_loudness_center_freq,
 302        TDA7419_LOUDNESS_REG, TDA7419_LOUDNESS_CENTER_FREQ,
 303        enum_loudness_center_freq);
 304static const char * const enum_mute_influence[] = {
 305        "Pin and IIC", "IIC"};
 306static SOC_ENUM_SINGLE_DECL(soc_enum_mute_influence,
 307        TDA7419_MUTE_CLK_REG, TDA7419_MUTE_INFLUENCE, enum_mute_influence);
 308static const char * const enum_soft_mute_time[] = {
 309        "0.48 ms", "0.96 ms", "123 ms", "123 ms"};
 310static SOC_ENUM_SINGLE_DECL(soc_enum_soft_mute_time,
 311        TDA7419_MUTE_CLK_REG, TDA7419_SOFT_MUTE_TIME, enum_soft_mute_time);
 312static const char * const enum_soft_step_time[] = {
 313        "0.160 ms", "0.321 ms", "0.642 ms", "1.28 ms",
 314        "2.56 ms", "5.12 ms", "10.24 ms", "20.48 ms"};
 315static SOC_ENUM_SINGLE_DECL(soc_enum_soft_step_time,
 316        TDA7419_MUTE_CLK_REG, TDA7419_SOFT_STEP_TIME, enum_soft_step_time);
 317static DECLARE_TLV_DB_SCALE(tlv_volume, -8000, 100, 1);
 318static const char * const enum_treble_center_freq[] = {
 319        "10.0 kHz", "12.5 kHz", "15.0 kHz", "17.5 kHz"};
 320static DECLARE_TLV_DB_SCALE(tlv_filter, -1500, 100, 0);
 321static SOC_ENUM_SINGLE_DECL(soc_enum_treble_center_freq,
 322        TDA7419_TREBLE_REG, TDA7419_TREBLE_CENTER_FREQ,
 323        enum_treble_center_freq);
 324static const char * const enum_ref_out_select[] = {
 325        "External Vref (4 V)", "Internal Vref (3.3 V)"};
 326static SOC_ENUM_SINGLE_DECL(soc_enum_ref_out_select,
 327        TDA7419_TREBLE_REG, TDA7419_REF_OUT_SELECT, enum_ref_out_select);
 328static const char * const enum_middle_q_factor[] = {
 329        "0.5", "0.75", "1.0", "1.25"};
 330static SOC_ENUM_SINGLE_DECL(soc_enum_middle_q_factor,
 331        TDA7419_MIDDLE_REG, TDA7419_MIDDLE_Q_FACTOR, enum_middle_q_factor);
 332static const char * const enum_bass_q_factor[] = {
 333        "1.0", "1.25", "1.5", "2.0"};
 334static SOC_ENUM_SINGLE_DECL(soc_enum_bass_q_factor,
 335        TDA7419_BASS_REG, TDA7419_BASS_Q_FACTOR, enum_bass_q_factor);
 336static SOC_ENUM_SINGLE_DECL(soc_enum_second_src_sel,
 337        TDA7419_SECOND_SRC_REG, TDA7419_SECOND_SRC_SEL, enum_src_sel);
 338static const struct snd_kcontrol_new soc_mux_second_src_sel =
 339        SOC_DAPM_ENUM("Second Source Select", soc_enum_second_src_sel);
 340static const char * const enum_rear_spkr_src[] = {
 341        "Main", "Second"};
 342static SOC_ENUM_SINGLE_DECL(soc_enum_rear_spkr_src,
 343        TDA7419_SECOND_SRC_REG, TDA7419_REAR_SPKR_SRC, enum_rear_spkr_src);
 344static const struct snd_kcontrol_new soc_mux_rear_spkr_src =
 345        SOC_DAPM_ENUM("Rear Speaker Source", soc_enum_rear_spkr_src);
 346static const char * const enum_sub_cut_off_freq[] = {
 347        "Flat", "80 Hz", "120 Hz", "160 Hz"};
 348static SOC_ENUM_SINGLE_DECL(soc_enum_sub_cut_off_freq,
 349        TDA7419_SUB_MID_BASS_REG, TDA7419_SUB_CUT_OFF_FREQ,
 350        enum_sub_cut_off_freq);
 351static const char * const enum_middle_center_freq[] = {
 352        "500 Hz", "1000 Hz", "1500 Hz", "2500 Hz"};
 353static SOC_ENUM_SINGLE_DECL(soc_enum_middle_center_freq,
 354        TDA7419_SUB_MID_BASS_REG, TDA7419_MIDDLE_CENTER_FREQ,
 355        enum_middle_center_freq);
 356static const char * const enum_bass_center_freq[] = {
 357        "60 Hz", "80 Hz", "100 Hz", "200 Hz"};
 358static SOC_ENUM_SINGLE_DECL(soc_enum_bass_center_freq,
 359        TDA7419_SUB_MID_BASS_REG, TDA7419_BASS_CENTER_FREQ,
 360        enum_bass_center_freq);
 361static const char * const enum_sa_q_factor[] = {
 362        "3.5", "1.75" };
 363static SOC_ENUM_SINGLE_DECL(soc_enum_sa_q_factor,
 364        TDA7419_SA_CLK_AC_REG, TDA7419_SA_Q_FACTOR, enum_sa_q_factor);
 365static const char * const enum_reset_mode[] = {
 366        "IIC", "Auto" };
 367static SOC_ENUM_SINGLE_DECL(soc_enum_reset_mode,
 368        TDA7419_SA_CLK_AC_REG, TDA7419_RESET_MODE, enum_reset_mode);
 369static const char * const enum_sa_src[] = {
 370        "Bass", "In Gain" };
 371static SOC_ENUM_SINGLE_DECL(soc_enum_sa_src,
 372        TDA7419_SA_CLK_AC_REG, TDA7419_SA_SOURCE, enum_sa_src);
 373static const char * const enum_clk_src[] = {
 374        "Internal", "External" };
 375static SOC_ENUM_SINGLE_DECL(soc_enum_clk_src,
 376        TDA7419_SA_CLK_AC_REG, TDA7419_CLK_SOURCE, enum_clk_src);
 377static const char * const enum_coupling_mode[] = {
 378        "DC Coupling (without HPF)", "AC Coupling after In Gain",
 379        "DC Coupling (with HPF)", "AC Coupling after Bass" };
 380static SOC_ENUM_SINGLE_DECL(soc_enum_coupling_mode,
 381        TDA7419_SA_CLK_AC_REG, TDA7419_COUPLING_MODE, enum_coupling_mode);
 382
 383/* ASoC Controls */
 384static struct snd_kcontrol_new tda7419_controls[] = {
 385SOC_SINGLE_TLV("Main Source Capture Volume", TDA7419_MAIN_SRC_REG,
 386               TDA7419_MAIN_SRC_GAIN, 15, 0, tlv_src_gain),
 387SOC_SINGLE("Main Source AutoZero Switch", TDA7419_MAIN_SRC_REG,
 388           TDA7419_MAIN_SRC_AUTOZERO, 1, 1),
 389SOC_SINGLE_TLV("Loudness Playback Volume", TDA7419_LOUDNESS_REG,
 390               TDA7419_LOUDNESS_ATTEN, 15, 1, tlv_loudness_atten),
 391SOC_ENUM("Loudness Center Frequency", soc_enum_loudness_center_freq),
 392SOC_SINGLE("Loudness High Boost Switch", TDA7419_LOUDNESS_REG,
 393           TDA7419_LOUDNESS_BOOST, 1, 1),
 394SOC_SINGLE("Loudness Soft Step Switch", TDA7419_LOUDNESS_REG,
 395           TDA7419_LOUDNESS_SOFT_STEP, 1, 1),
 396SOC_SINGLE("Soft Mute Switch", TDA7419_MUTE_CLK_REG, TDA7419_SOFT_MUTE, 1, 1),
 397SOC_ENUM("Mute Influence", soc_enum_mute_influence),
 398SOC_ENUM("Soft Mute Time", soc_enum_soft_mute_time),
 399SOC_ENUM("Soft Step Time", soc_enum_soft_step_time),
 400SOC_SINGLE("Clock Fast Mode Switch", TDA7419_MUTE_CLK_REG,
 401           TDA7419_CLK_FAST_MODE, 1, 1),
 402TDA7419_SINGLE_TLV("Master Playback Volume", TDA7419_VOLUME_REG,
 403                   0x7f, -80, 15, 0x10, 0, tlv_volume),
 404SOC_SINGLE("Volume Soft Step Switch", TDA7419_VOLUME_REG,
 405           TDA7419_VOLUME_SOFT_STEP, 1, 1),
 406TDA7419_SINGLE_TLV("Treble Playback Volume", TDA7419_TREBLE_REG,
 407                   0x1f, -15, 15, 0x10, 1, tlv_filter),
 408SOC_ENUM("Treble Center Frequency", soc_enum_treble_center_freq),
 409SOC_ENUM("Reference Output Select", soc_enum_ref_out_select),
 410TDA7419_SINGLE_TLV("Middle Playback Volume", TDA7419_MIDDLE_REG,
 411                   0x1f, -15, 15, 0x10, 1, tlv_filter),
 412SOC_ENUM("Middle Q Factor", soc_enum_middle_q_factor),
 413SOC_SINGLE("Middle Soft Step Switch", TDA7419_MIDDLE_REG,
 414           TDA7419_MIDDLE_SOFT_STEP, 1, 1),
 415TDA7419_SINGLE_TLV("Bass Playback Volume", TDA7419_BASS_REG,
 416                   0x1f, -15, 15, 0x10, 1, tlv_filter),
 417SOC_ENUM("Bass Q Factor", soc_enum_bass_q_factor),
 418SOC_SINGLE("Bass Soft Step Switch", TDA7419_BASS_REG,
 419           TDA7419_BASS_SOFT_STEP, 1, 1),
 420SOC_SINGLE_TLV("Second Source Capture Volume", TDA7419_SECOND_SRC_REG,
 421               TDA7419_SECOND_SRC_GAIN, 15, 0, tlv_src_gain),
 422SOC_ENUM("Subwoofer Cut-off Frequency", soc_enum_sub_cut_off_freq),
 423SOC_ENUM("Middle Center Frequency", soc_enum_middle_center_freq),
 424SOC_ENUM("Bass Center Frequency", soc_enum_bass_center_freq),
 425SOC_SINGLE("Bass DC Mode Switch", TDA7419_SUB_MID_BASS_REG,
 426           TDA7419_BASS_DC_MODE, 1, 1),
 427SOC_SINGLE("Smoothing Filter Switch", TDA7419_SUB_MID_BASS_REG,
 428           TDA7419_SMOOTHING_FILTER, 1, 1),
 429TDA7419_DOUBLE_R_TLV("Front Speaker Playback Volume", TDA7419_ATTENUATOR_LF_REG,
 430                     TDA7419_ATTENUATOR_RF_REG, 0x7f, -80, 15, 0x10, 0,
 431                     tlv_volume),
 432SOC_SINGLE("Left Front Soft Step Switch", TDA7419_ATTENUATOR_LF_REG,
 433           TDA7419_VOLUME_SOFT_STEP, 1, 1),
 434SOC_SINGLE("Right Front Soft Step Switch", TDA7419_ATTENUATOR_RF_REG,
 435           TDA7419_VOLUME_SOFT_STEP, 1, 1),
 436TDA7419_DOUBLE_R_TLV("Rear Speaker Playback Volume", TDA7419_ATTENUATOR_LR_REG,
 437                     TDA7419_ATTENUATOR_RR_REG, 0x7f, -80, 15, 0x10, 0,
 438                     tlv_volume),
 439SOC_SINGLE("Left Rear Soft Step Switch", TDA7419_ATTENUATOR_LR_REG,
 440           TDA7419_VOLUME_SOFT_STEP, 1, 1),
 441SOC_SINGLE("Right Rear Soft Step Switch", TDA7419_ATTENUATOR_RR_REG,
 442           TDA7419_VOLUME_SOFT_STEP, 1, 1),
 443TDA7419_SINGLE_TLV("Mixing Capture Volume", TDA7419_MIXING_LEVEL_REG,
 444                   0x7f, -80, 15, 0x10, 0, tlv_volume),
 445SOC_SINGLE("Mixing Level Soft Step Switch", TDA7419_MIXING_LEVEL_REG,
 446           TDA7419_VOLUME_SOFT_STEP, 1, 1),
 447TDA7419_SINGLE_TLV("Subwoofer Playback Volume", TDA7419_ATTENUATOR_SUB_REG,
 448                   0x7f, -80, 15, 0x10, 0, tlv_volume),
 449SOC_SINGLE("Subwoofer Soft Step Switch", TDA7419_ATTENUATOR_SUB_REG,
 450           TDA7419_VOLUME_SOFT_STEP, 1, 1),
 451SOC_ENUM("Spectrum Analyzer Q Factor", soc_enum_sa_q_factor),
 452SOC_ENUM("Spectrum Analyzer Reset Mode", soc_enum_reset_mode),
 453SOC_ENUM("Spectrum Analyzer Source", soc_enum_sa_src),
 454SOC_SINGLE("Spectrum Analyzer Run Switch", TDA7419_SA_CLK_AC_REG,
 455           TDA7419_SA_RUN, 1, 1),
 456SOC_SINGLE("Spectrum Analyzer Reset Switch", TDA7419_SA_CLK_AC_REG,
 457           TDA7419_RESET, 1, 1),
 458SOC_ENUM("Clock Source", soc_enum_clk_src),
 459SOC_ENUM("Coupling Mode", soc_enum_coupling_mode),
 460};
 461
 462static const struct snd_kcontrol_new soc_mixer_lf_output_controls[] = {
 463        SOC_DAPM_SINGLE("Mix to LF Speaker Switch",
 464                        TDA7419_MIXING_GAIN_REG,
 465                        TDA7419_MIX_LF, 1, 1),
 466};
 467
 468static const struct snd_kcontrol_new soc_mixer_rf_output_controls[] = {
 469        SOC_DAPM_SINGLE("Mix to RF Speaker Switch",
 470                        TDA7419_MIXING_GAIN_REG,
 471                        TDA7419_MIX_RF, 1, 1),
 472};
 473
 474static const struct snd_kcontrol_new soc_mix_enable_switch_controls[] = {
 475        SOC_DAPM_SINGLE("Switch", TDA7419_MIXING_GAIN_REG,
 476                        TDA7419_MIX_ENABLE, 1, 1),
 477};
 478
 479static const struct snd_kcontrol_new soc_sub_enable_switch_controls[] = {
 480        SOC_DAPM_SINGLE("Switch", TDA7419_MIXING_GAIN_REG,
 481                        TDA7419_MIX_ENABLE, 1, 1),
 482};
 483
 484static const struct snd_soc_dapm_widget tda7419_dapm_widgets[] = {
 485        SND_SOC_DAPM_INPUT("SE3L"),
 486        SND_SOC_DAPM_INPUT("SE3R"),
 487        SND_SOC_DAPM_INPUT("SE2L"),
 488        SND_SOC_DAPM_INPUT("SE2R"),
 489        SND_SOC_DAPM_INPUT("SE1L"),
 490        SND_SOC_DAPM_INPUT("SE1R"),
 491        SND_SOC_DAPM_INPUT("DIFFL"),
 492        SND_SOC_DAPM_INPUT("DIFFR"),
 493        SND_SOC_DAPM_INPUT("MIX"),
 494
 495        SND_SOC_DAPM_MUX("Main Source Select", SND_SOC_NOPM,
 496                         0, 0, &soc_mux_main_src_sel),
 497        SND_SOC_DAPM_MUX("Second Source Select", SND_SOC_NOPM,
 498                         0, 0, &soc_mux_second_src_sel),
 499        SND_SOC_DAPM_MUX("Rear Speaker Source", SND_SOC_NOPM,
 500                         0, 0, &soc_mux_rear_spkr_src),
 501
 502        SND_SOC_DAPM_SWITCH("Mix Enable", SND_SOC_NOPM,
 503                        0, 0, &soc_mix_enable_switch_controls[0]),
 504        SND_SOC_DAPM_MIXER_NAMED_CTL("LF Output Mixer", SND_SOC_NOPM,
 505                        0, 0, &soc_mixer_lf_output_controls[0],
 506                        ARRAY_SIZE(soc_mixer_lf_output_controls)),
 507        SND_SOC_DAPM_MIXER_NAMED_CTL("RF Output Mixer", SND_SOC_NOPM,
 508                        0, 0, &soc_mixer_rf_output_controls[0],
 509                        ARRAY_SIZE(soc_mixer_rf_output_controls)),
 510
 511        SND_SOC_DAPM_SWITCH("Subwoofer Enable",
 512                        SND_SOC_NOPM, 0, 0,
 513                        &soc_sub_enable_switch_controls[0]),
 514
 515        SND_SOC_DAPM_OUTPUT("OUTLF"),
 516        SND_SOC_DAPM_OUTPUT("OUTRF"),
 517        SND_SOC_DAPM_OUTPUT("OUTLR"),
 518        SND_SOC_DAPM_OUTPUT("OUTRR"),
 519        SND_SOC_DAPM_OUTPUT("OUTSW"),
 520};
 521
 522static const struct snd_soc_dapm_route tda7419_dapm_routes[] = {
 523        {"Main Source Select", "SE3", "SE3L"},
 524        {"Main Source Select", "SE3", "SE3R"},
 525        {"Main Source Select", "SE2", "SE2L"},
 526        {"Main Source Select", "SE2", "SE2R"},
 527        {"Main Source Select", "SE1", "SE1L"},
 528        {"Main Source Select", "SE1", "SE1R"},
 529        {"Main Source Select", "SE", "DIFFL"},
 530        {"Main Source Select", "SE", "DIFFR"},
 531        {"Main Source Select", "QD", "DIFFL"},
 532        {"Main Source Select", "QD", "DIFFR"},
 533
 534        {"Second Source Select", "SE3", "SE3L"},
 535        {"Second Source Select", "SE3", "SE3R"},
 536        {"Second Source Select", "SE2", "SE2L"},
 537        {"Second Source Select", "SE2", "SE2R"},
 538        {"Second Source Select", "SE1", "SE1L"},
 539        {"Second Source Select", "SE1", "SE1R"},
 540        {"Second Source Select", "SE", "DIFFL"},
 541        {"Second Source Select", "SE", "DIFFR"},
 542        {"Second Source Select", "QD", "DIFFL"},
 543        {"Second Source Select", "QD", "DIFFR"},
 544
 545        {"Rear Speaker Source", "Main", "Main Source Select"},
 546        {"Rear Speaker Source", "Second", "Second Source Select"},
 547
 548        {"Subwoofer Enable", "Switch", "Main Source Select"},
 549
 550        {"Mix Enable", "Switch", "MIX"},
 551
 552        {"LF Output Mixer", NULL, "Main Source Select"},
 553        {"LF Output Mixer", "Mix to LF Speaker Switch", "Mix Enable"},
 554        {"RF Output Mixer", NULL, "Main Source Select"},
 555        {"RF Output Mixer", "Mix to RF Speaker Switch", "Mix Enable"},
 556
 557        {"OUTLF", NULL, "LF Output Mixer"},
 558        {"OUTRF", NULL, "RF Output Mixer"},
 559        {"OUTLR", NULL, "Rear Speaker Source"},
 560        {"OUTRR", NULL, "Rear Speaker Source"},
 561        {"OUTSW", NULL, "Subwoofer Enable"},
 562};
 563
 564static const struct snd_soc_component_driver tda7419_component_driver = {
 565        .name                   = "tda7419",
 566        .controls               = tda7419_controls,
 567        .num_controls           = ARRAY_SIZE(tda7419_controls),
 568        .dapm_widgets           = tda7419_dapm_widgets,
 569        .num_dapm_widgets       = ARRAY_SIZE(tda7419_dapm_widgets),
 570        .dapm_routes            = tda7419_dapm_routes,
 571        .num_dapm_routes        = ARRAY_SIZE(tda7419_dapm_routes),
 572};
 573
 574static int tda7419_probe(struct i2c_client *i2c,
 575                         const struct i2c_device_id *id)
 576{
 577        struct tda7419_data *tda7419;
 578        int i, ret;
 579
 580        tda7419 = devm_kzalloc(&i2c->dev,
 581                               sizeof(struct tda7419_data),
 582                               GFP_KERNEL);
 583        if (tda7419 == NULL)
 584                return -ENOMEM;
 585
 586        i2c_set_clientdata(i2c, tda7419);
 587
 588        tda7419->regmap = devm_regmap_init_i2c(i2c, &tda7419_regmap_config);
 589        if (IS_ERR(tda7419->regmap)) {
 590                ret = PTR_ERR(tda7419->regmap);
 591                dev_err(&i2c->dev, "error initializing regmap: %d\n",
 592                                ret);
 593                return ret;
 594        }
 595
 596        /*
 597         * Reset registers to power-on defaults. The part does not provide a
 598         * soft-reset function and the registers are not readable. This ensures
 599         * that the cache matches register contents even if the registers have
 600         * been previously initialized and not power cycled before probe.
 601         */
 602        for (i = 0; i < ARRAY_SIZE(tda7419_regmap_defaults); i++)
 603                regmap_write(tda7419->regmap,
 604                             tda7419_regmap_defaults[i].reg,
 605                             tda7419_regmap_defaults[i].def);
 606
 607        ret = devm_snd_soc_register_component(&i2c->dev,
 608                &tda7419_component_driver, NULL, 0);
 609        if (ret < 0) {
 610                dev_err(&i2c->dev, "error registering component: %d\n",
 611                                ret);
 612        }
 613
 614        return ret;
 615}
 616
 617static const struct i2c_device_id tda7419_i2c_id[] = {
 618        { "tda7419", 0 },
 619        { }
 620};
 621MODULE_DEVICE_TABLE(i2c, tda7419_i2c_id);
 622
 623static const struct of_device_id tda7419_of_match[] = {
 624        { .compatible = "st,tda7419" },
 625        { },
 626};
 627
 628static struct i2c_driver tda7419_driver = {
 629        .driver = {
 630                .name   = "tda7419",
 631                .of_match_table = tda7419_of_match,
 632        },
 633        .probe          = tda7419_probe,
 634        .id_table       = tda7419_i2c_id,
 635};
 636
 637module_i2c_driver(tda7419_driver);
 638
 639MODULE_AUTHOR("Matt Porter <mporter@konsulko.com>");
 640MODULE_DESCRIPTION("TDA7419 audio processor driver");
 641MODULE_LICENSE("GPL");
 642
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