linux/sound/soc/codecs/tda7419.c
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   1/*
   2 * TDA7419 audio processor driver
   3 *
   4 * Copyright 2018 Konsulko Group
   5 *
   6 * Author: Matt Porter <mporter@konsulko.com>
   7 *
   8 * This program is free software; you can redistribute it and/or
   9 * modify it under the terms of the GNU General Public License
  10 * version 2 as published by the Free Software Foundation.
  11 *
  12 * This program is distributed in the hope that it will be useful, but
  13 * WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 * General Public License for more details.
  16 */
  17
  18#include <linux/i2c.h>
  19#include <linux/init.h>
  20#include <linux/module.h>
  21#include <linux/regmap.h>
  22#include <sound/core.h>
  23#include <sound/control.h>
  24#include <sound/soc.h>
  25#include <sound/tlv.h>
  26
  27#define TDA7419_MAIN_SRC_REG            0x00
  28#define TDA7419_LOUDNESS_REG            0x01
  29#define TDA7419_MUTE_CLK_REG            0x02
  30#define TDA7419_VOLUME_REG              0x03
  31#define TDA7419_TREBLE_REG              0x04
  32#define TDA7419_MIDDLE_REG              0x05
  33#define TDA7419_BASS_REG                0x06
  34#define TDA7419_SECOND_SRC_REG          0x07
  35#define TDA7419_SUB_MID_BASS_REG        0x08
  36#define TDA7419_MIXING_GAIN_REG         0x09
  37#define TDA7419_ATTENUATOR_LF_REG       0x0a
  38#define TDA7419_ATTENUATOR_RF_REG       0x0b
  39#define TDA7419_ATTENUATOR_LR_REG       0x0c
  40#define TDA7419_ATTENUATOR_RR_REG       0x0d
  41#define TDA7419_MIXING_LEVEL_REG        0x0e
  42#define TDA7419_ATTENUATOR_SUB_REG      0x0f
  43#define TDA7419_SA_CLK_AC_REG           0x10
  44#define TDA7419_TESTING_REG             0x11
  45
  46#define TDA7419_MAIN_SRC_SEL            0
  47#define TDA7419_MAIN_SRC_GAIN           3
  48#define TDA7419_MAIN_SRC_AUTOZERO       7
  49
  50#define TDA7419_LOUDNESS_ATTEN          0
  51#define TDA7419_LOUDNESS_CENTER_FREQ    4
  52#define TDA7419_LOUDNESS_BOOST          6
  53#define TDA7419_LOUDNESS_SOFT_STEP      7
  54
  55#define TDA7419_VOLUME_SOFT_STEP        7
  56
  57#define TDA7419_SOFT_MUTE               0
  58#define TDA7419_MUTE_INFLUENCE          1
  59#define TDA7419_SOFT_MUTE_TIME          2
  60#define TDA7419_SOFT_STEP_TIME          4
  61#define TDA7419_CLK_FAST_MODE           7
  62
  63#define TDA7419_TREBLE_CENTER_FREQ      5
  64#define TDA7419_REF_OUT_SELECT          7
  65
  66#define TDA7419_MIDDLE_Q_FACTOR         5
  67#define TDA7419_MIDDLE_SOFT_STEP        7
  68
  69#define TDA7419_BASS_Q_FACTOR           5
  70#define TDA7419_BASS_SOFT_STEP          7
  71
  72#define TDA7419_SECOND_SRC_SEL          0
  73#define TDA7419_SECOND_SRC_GAIN         3
  74#define TDA7419_REAR_SPKR_SRC           7
  75
  76#define TDA7419_SUB_CUT_OFF_FREQ        0
  77#define TDA7419_MIDDLE_CENTER_FREQ      2
  78#define TDA7419_BASS_CENTER_FREQ        4
  79#define TDA7419_BASS_DC_MODE            6
  80#define TDA7419_SMOOTHING_FILTER        7
  81
  82#define TDA7419_MIX_LF                  0
  83#define TDA7419_MIX_RF                  1
  84#define TDA7419_MIX_ENABLE              2
  85#define TDA7419_SUB_ENABLE              3
  86#define TDA7419_HPF_GAIN                4
  87
  88#define TDA7419_SA_Q_FACTOR             0
  89#define TDA7419_RESET_MODE              1
  90#define TDA7419_SA_SOURCE               2
  91#define TDA7419_SA_RUN                  3
  92#define TDA7419_RESET                   4
  93#define TDA7419_CLK_SOURCE              5
  94#define TDA7419_COUPLING_MODE           6
  95
  96struct tda7419_data {
  97        struct regmap *regmap;
  98};
  99
 100static bool tda7419_readable_reg(struct device *dev, unsigned int reg)
 101{
 102        return false;
 103}
 104
 105static const struct reg_default tda7419_regmap_defaults[] = {
 106        { TDA7419_MAIN_SRC_REG, 0xfe },
 107        { TDA7419_LOUDNESS_REG, 0xfe },
 108        { TDA7419_MUTE_CLK_REG, 0xfe },
 109        { TDA7419_VOLUME_REG, 0xfe },
 110        { TDA7419_TREBLE_REG, 0xfe },
 111        { TDA7419_MIDDLE_REG, 0xfe },
 112        { TDA7419_BASS_REG, 0xfe },
 113        { TDA7419_SECOND_SRC_REG, 0xfe },
 114        { TDA7419_SUB_MID_BASS_REG, 0xfe },
 115        { TDA7419_MIXING_GAIN_REG, 0xfe },
 116        { TDA7419_ATTENUATOR_LF_REG, 0xfe },
 117        { TDA7419_ATTENUATOR_RF_REG, 0xfe },
 118        { TDA7419_ATTENUATOR_LR_REG, 0xfe },
 119        { TDA7419_ATTENUATOR_RR_REG, 0xfe },
 120        { TDA7419_MIXING_LEVEL_REG, 0xfe },
 121        { TDA7419_ATTENUATOR_SUB_REG, 0xfe },
 122        { TDA7419_SA_CLK_AC_REG, 0xfe },
 123        { TDA7419_TESTING_REG, 0xfe },
 124};
 125
 126static const struct regmap_config tda7419_regmap_config = {
 127        .reg_bits = 8,
 128        .val_bits = 8,
 129        .max_register = TDA7419_TESTING_REG,
 130        .cache_type = REGCACHE_RBTREE,
 131        .readable_reg = tda7419_readable_reg,
 132        .reg_defaults = tda7419_regmap_defaults,
 133        .num_reg_defaults = ARRAY_SIZE(tda7419_regmap_defaults),
 134};
 135
 136struct tda7419_vol_control {
 137        int min, max;
 138        unsigned int reg, rreg, mask, thresh;
 139        unsigned int invert:1;
 140};
 141
 142static inline bool tda7419_vol_is_stereo(struct tda7419_vol_control *tvc)
 143{
 144        if (tvc->reg == tvc->rreg)
 145                return 0;
 146
 147        return 1;
 148}
 149
 150static int tda7419_vol_info(struct snd_kcontrol *kcontrol,
 151        struct snd_ctl_elem_info *uinfo)
 152{
 153        struct tda7419_vol_control *tvc =
 154                (struct tda7419_vol_control *)kcontrol->private_value;
 155
 156        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 157        uinfo->count = tda7419_vol_is_stereo(tvc) ? 2 : 1;
 158        uinfo->value.integer.min = tvc->min;
 159        uinfo->value.integer.max = tvc->max;
 160
 161        return 0;
 162}
 163
 164static inline int tda7419_vol_get_value(int val, unsigned int mask,
 165                                        int min, int thresh,
 166                                        unsigned int invert)
 167{
 168        val &= mask;
 169        if (val < thresh) {
 170                if (invert)
 171                        val = 0 - val;
 172        } else if (val > thresh) {
 173                if (invert)
 174                        val = val - thresh;
 175                else
 176                        val = thresh - val;
 177        }
 178
 179        if (val < min)
 180                val = min;
 181
 182        return val;
 183}
 184
 185static int tda7419_vol_get(struct snd_kcontrol *kcontrol,
 186                           struct snd_ctl_elem_value *ucontrol)
 187{
 188        struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
 189        struct tda7419_vol_control *tvc =
 190                (struct tda7419_vol_control *)kcontrol->private_value;
 191        unsigned int reg = tvc->reg;
 192        unsigned int rreg = tvc->rreg;
 193        unsigned int mask = tvc->mask;
 194        int min = tvc->min;
 195        int thresh = tvc->thresh;
 196        unsigned int invert = tvc->invert;
 197        int val;
 198        int ret;
 199
 200        ret = snd_soc_component_read(component, reg, &val);
 201        if (ret < 0)
 202                return ret;
 203        ucontrol->value.integer.value[0] =
 204                tda7419_vol_get_value(val, mask, min, thresh, invert);
 205
 206        if (tda7419_vol_is_stereo(tvc)) {
 207                ret = snd_soc_component_read(component, rreg, &val);
 208                if (ret < 0)
 209                        return ret;
 210                ucontrol->value.integer.value[1] =
 211                        tda7419_vol_get_value(val, mask, min, thresh, invert);
 212        }
 213
 214        return 0;
 215}
 216
 217static inline int tda7419_vol_put_value(int val, int thresh,
 218                                        unsigned int invert)
 219{
 220        if (val < 0) {
 221                if (invert)
 222                        val = abs(val);
 223                else
 224                        val = thresh - val;
 225        } else if ((val > 0) && invert) {
 226                val += thresh;
 227        }
 228
 229        return val;
 230}
 231
 232static int tda7419_vol_put(struct snd_kcontrol *kcontrol,
 233                           struct snd_ctl_elem_value *ucontrol)
 234{
 235        struct snd_soc_component *component =
 236                snd_kcontrol_chip(kcontrol);
 237        struct tda7419_vol_control *tvc =
 238                (struct tda7419_vol_control *)kcontrol->private_value;
 239        unsigned int reg = tvc->reg;
 240        unsigned int rreg = tvc->rreg;
 241        unsigned int mask = tvc->mask;
 242        int thresh = tvc->thresh;
 243        unsigned int invert = tvc->invert;
 244        int val;
 245        int ret;
 246
 247        val = tda7419_vol_put_value(ucontrol->value.integer.value[0],
 248                                    thresh, invert);
 249        ret = snd_soc_component_update_bits(component, reg,
 250                                            mask, val);
 251        if (ret < 0)
 252                return ret;
 253
 254        if (tda7419_vol_is_stereo(tvc)) {
 255                val = tda7419_vol_put_value(ucontrol->value.integer.value[1],
 256                                            thresh, invert);
 257                ret = snd_soc_component_update_bits(component, rreg,
 258                                                    mask, val);
 259        }
 260
 261        return ret;
 262}
 263
 264#define TDA7419_SINGLE_VALUE(xreg, xmask, xmin, xmax, xthresh, xinvert) \
 265        ((unsigned long)&(struct tda7419_vol_control) \
 266        {.reg = xreg, .rreg = xreg, .mask = xmask, .min = xmin, \
 267         .max = xmax, .thresh = xthresh, .invert = xinvert})
 268
 269#define TDA7419_DOUBLE_R_VALUE(xregl, xregr, xmask, xmin, xmax, xthresh, \
 270                               xinvert) \
 271        ((unsigned long)&(struct tda7419_vol_control) \
 272        {.reg = xregl, .rreg = xregr, .mask = xmask, .min = xmin, \
 273         .max = xmax, .thresh = xthresh, .invert = xinvert})
 274
 275#define TDA7419_SINGLE_TLV(xname, xreg, xmask, xmin, xmax, xthresh, \
 276                           xinvert, xtlv_array) \
 277{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
 278        .name = xname, \
 279        .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 280                SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 281        .tlv.p = (xtlv_array), \
 282        .info = tda7419_vol_info, \
 283        .get = tda7419_vol_get, \
 284        .put = tda7419_vol_put, \
 285        .private_value = TDA7419_SINGLE_VALUE(xreg, xmask, xmin, \
 286                                              xmax, xthresh, xinvert), \
 287}
 288
 289#define TDA7419_DOUBLE_R_TLV(xname, xregl, xregr, xmask, xmin, xmax, \
 290                             xthresh, xinvert, xtlv_array) \
 291{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
 292        .name = xname, \
 293        .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 294                SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 295        .tlv.p = (xtlv_array), \
 296        .info = tda7419_vol_info, \
 297        .get = tda7419_vol_get, \
 298        .put = tda7419_vol_put, \
 299        .private_value = TDA7419_DOUBLE_R_VALUE(xregl, xregr, xmask, \
 300                                                xmin, xmax, xthresh, \
 301                                                xinvert), \
 302}
 303
 304static const char * const enum_src_sel[] = {
 305        "QD", "SE1", "SE2", "SE3", "SE", "Mute", "Mute", "Mute"};
 306static SOC_ENUM_SINGLE_DECL(soc_enum_main_src_sel,
 307        TDA7419_MAIN_SRC_REG, TDA7419_MAIN_SRC_SEL, enum_src_sel);
 308static const struct snd_kcontrol_new soc_mux_main_src_sel =
 309        SOC_DAPM_ENUM("Main Source Select", soc_enum_main_src_sel);
 310static DECLARE_TLV_DB_SCALE(tlv_src_gain, 0, 100, 0);
 311static DECLARE_TLV_DB_SCALE(tlv_loudness_atten, -1500, 100, 0);
 312static const char * const enum_loudness_center_freq[] = {
 313        "Flat", "400 Hz", "800 Hz", "2400 Hz"};
 314static SOC_ENUM_SINGLE_DECL(soc_enum_loudness_center_freq,
 315        TDA7419_LOUDNESS_REG, TDA7419_LOUDNESS_CENTER_FREQ,
 316        enum_loudness_center_freq);
 317static const char * const enum_mute_influence[] = {
 318        "Pin and IIC", "IIC"};
 319static SOC_ENUM_SINGLE_DECL(soc_enum_mute_influence,
 320        TDA7419_MUTE_CLK_REG, TDA7419_MUTE_INFLUENCE, enum_mute_influence);
 321static const char * const enum_soft_mute_time[] = {
 322        "0.48 ms", "0.96 ms", "123 ms", "123 ms"};
 323static SOC_ENUM_SINGLE_DECL(soc_enum_soft_mute_time,
 324        TDA7419_MUTE_CLK_REG, TDA7419_SOFT_MUTE_TIME, enum_soft_mute_time);
 325static const char * const enum_soft_step_time[] = {
 326        "0.160 ms", "0.321 ms", "0.642 ms", "1.28 ms",
 327        "2.56 ms", "5.12 ms", "10.24 ms", "20.48 ms"};
 328static SOC_ENUM_SINGLE_DECL(soc_enum_soft_step_time,
 329        TDA7419_MUTE_CLK_REG, TDA7419_SOFT_STEP_TIME, enum_soft_step_time);
 330static DECLARE_TLV_DB_SCALE(tlv_volume, -8000, 100, 1);
 331static const char * const enum_treble_center_freq[] = {
 332        "10.0 kHz", "12.5 kHz", "15.0 kHz", "17.5 kHz"};
 333static DECLARE_TLV_DB_SCALE(tlv_filter, -1500, 100, 0);
 334static SOC_ENUM_SINGLE_DECL(soc_enum_treble_center_freq,
 335        TDA7419_TREBLE_REG, TDA7419_TREBLE_CENTER_FREQ,
 336        enum_treble_center_freq);
 337static const char * const enum_ref_out_select[] = {
 338        "External Vref (4 V)", "Internal Vref (3.3 V)"};
 339static SOC_ENUM_SINGLE_DECL(soc_enum_ref_out_select,
 340        TDA7419_TREBLE_REG, TDA7419_REF_OUT_SELECT, enum_ref_out_select);
 341static const char * const enum_middle_q_factor[] = {
 342        "0.5", "0.75", "1.0", "1.25"};
 343static SOC_ENUM_SINGLE_DECL(soc_enum_middle_q_factor,
 344        TDA7419_MIDDLE_REG, TDA7419_MIDDLE_Q_FACTOR, enum_middle_q_factor);
 345static const char * const enum_bass_q_factor[] = {
 346        "1.0", "1.25", "1.5", "2.0"};
 347static SOC_ENUM_SINGLE_DECL(soc_enum_bass_q_factor,
 348        TDA7419_BASS_REG, TDA7419_BASS_Q_FACTOR, enum_bass_q_factor);
 349static SOC_ENUM_SINGLE_DECL(soc_enum_second_src_sel,
 350        TDA7419_SECOND_SRC_REG, TDA7419_SECOND_SRC_SEL, enum_src_sel);
 351static const struct snd_kcontrol_new soc_mux_second_src_sel =
 352        SOC_DAPM_ENUM("Second Source Select", soc_enum_second_src_sel);
 353static const char * const enum_rear_spkr_src[] = {
 354        "Main", "Second"};
 355static SOC_ENUM_SINGLE_DECL(soc_enum_rear_spkr_src,
 356        TDA7419_SECOND_SRC_REG, TDA7419_REAR_SPKR_SRC, enum_rear_spkr_src);
 357static const struct snd_kcontrol_new soc_mux_rear_spkr_src =
 358        SOC_DAPM_ENUM("Rear Speaker Source", soc_enum_rear_spkr_src);
 359static const char * const enum_sub_cut_off_freq[] = {
 360        "Flat", "80 Hz", "120 Hz", "160 Hz"};
 361static SOC_ENUM_SINGLE_DECL(soc_enum_sub_cut_off_freq,
 362        TDA7419_SUB_MID_BASS_REG, TDA7419_SUB_CUT_OFF_FREQ,
 363        enum_sub_cut_off_freq);
 364static const char * const enum_middle_center_freq[] = {
 365        "500 Hz", "1000 Hz", "1500 Hz", "2500 Hz"};
 366static SOC_ENUM_SINGLE_DECL(soc_enum_middle_center_freq,
 367        TDA7419_SUB_MID_BASS_REG, TDA7419_MIDDLE_CENTER_FREQ,
 368        enum_middle_center_freq);
 369static const char * const enum_bass_center_freq[] = {
 370        "60 Hz", "80 Hz", "100 Hz", "200 Hz"};
 371static SOC_ENUM_SINGLE_DECL(soc_enum_bass_center_freq,
 372        TDA7419_SUB_MID_BASS_REG, TDA7419_BASS_CENTER_FREQ,
 373        enum_bass_center_freq);
 374static const char * const enum_sa_q_factor[] = {
 375        "3.5", "1.75" };
 376static SOC_ENUM_SINGLE_DECL(soc_enum_sa_q_factor,
 377        TDA7419_SA_CLK_AC_REG, TDA7419_SA_Q_FACTOR, enum_sa_q_factor);
 378static const char * const enum_reset_mode[] = {
 379        "IIC", "Auto" };
 380static SOC_ENUM_SINGLE_DECL(soc_enum_reset_mode,
 381        TDA7419_SA_CLK_AC_REG, TDA7419_RESET_MODE, enum_reset_mode);
 382static const char * const enum_sa_src[] = {
 383        "Bass", "In Gain" };
 384static SOC_ENUM_SINGLE_DECL(soc_enum_sa_src,
 385        TDA7419_SA_CLK_AC_REG, TDA7419_SA_SOURCE, enum_sa_src);
 386static const char * const enum_clk_src[] = {
 387        "Internal", "External" };
 388static SOC_ENUM_SINGLE_DECL(soc_enum_clk_src,
 389        TDA7419_SA_CLK_AC_REG, TDA7419_CLK_SOURCE, enum_clk_src);
 390static const char * const enum_coupling_mode[] = {
 391        "DC Coupling (without HPF)", "AC Coupling after In Gain",
 392        "DC Coupling (with HPF)", "AC Coupling after Bass" };
 393static SOC_ENUM_SINGLE_DECL(soc_enum_coupling_mode,
 394        TDA7419_SA_CLK_AC_REG, TDA7419_COUPLING_MODE, enum_coupling_mode);
 395
 396/* ASoC Controls */
 397static struct snd_kcontrol_new tda7419_controls[] = {
 398SOC_SINGLE_TLV("Main Source Capture Volume", TDA7419_MAIN_SRC_REG,
 399               TDA7419_MAIN_SRC_GAIN, 15, 0, tlv_src_gain),
 400SOC_SINGLE("Main Source AutoZero Switch", TDA7419_MAIN_SRC_REG,
 401           TDA7419_MAIN_SRC_AUTOZERO, 1, 1),
 402SOC_SINGLE_TLV("Loudness Playback Volume", TDA7419_LOUDNESS_REG,
 403               TDA7419_LOUDNESS_ATTEN, 15, 1, tlv_loudness_atten),
 404SOC_ENUM("Loudness Center Frequency", soc_enum_loudness_center_freq),
 405SOC_SINGLE("Loudness High Boost Switch", TDA7419_LOUDNESS_REG,
 406           TDA7419_LOUDNESS_BOOST, 1, 1),
 407SOC_SINGLE("Loudness Soft Step Switch", TDA7419_LOUDNESS_REG,
 408           TDA7419_LOUDNESS_SOFT_STEP, 1, 1),
 409SOC_SINGLE("Soft Mute Switch", TDA7419_MUTE_CLK_REG, TDA7419_SOFT_MUTE, 1, 1),
 410SOC_ENUM("Mute Influence", soc_enum_mute_influence),
 411SOC_ENUM("Soft Mute Time", soc_enum_soft_mute_time),
 412SOC_ENUM("Soft Step Time", soc_enum_soft_step_time),
 413SOC_SINGLE("Clock Fast Mode Switch", TDA7419_MUTE_CLK_REG,
 414           TDA7419_CLK_FAST_MODE, 1, 1),
 415TDA7419_SINGLE_TLV("Master Playback Volume", TDA7419_VOLUME_REG,
 416                   0x7f, -80, 15, 0x10, 0, tlv_volume),
 417SOC_SINGLE("Volume Soft Step Switch", TDA7419_VOLUME_REG,
 418           TDA7419_VOLUME_SOFT_STEP, 1, 1),
 419TDA7419_SINGLE_TLV("Treble Playback Volume", TDA7419_TREBLE_REG,
 420                   0x1f, -15, 15, 0x10, 1, tlv_filter),
 421SOC_ENUM("Treble Center Frequency", soc_enum_treble_center_freq),
 422SOC_ENUM("Reference Output Select", soc_enum_ref_out_select),
 423TDA7419_SINGLE_TLV("Middle Playback Volume", TDA7419_MIDDLE_REG,
 424                   0x1f, -15, 15, 0x10, 1, tlv_filter),
 425SOC_ENUM("Middle Q Factor", soc_enum_middle_q_factor),
 426SOC_SINGLE("Middle Soft Step Switch", TDA7419_MIDDLE_REG,
 427           TDA7419_MIDDLE_SOFT_STEP, 1, 1),
 428TDA7419_SINGLE_TLV("Bass Playback Volume", TDA7419_BASS_REG,
 429                   0x1f, -15, 15, 0x10, 1, tlv_filter),
 430SOC_ENUM("Bass Q Factor", soc_enum_bass_q_factor),
 431SOC_SINGLE("Bass Soft Step Switch", TDA7419_BASS_REG,
 432           TDA7419_BASS_SOFT_STEP, 1, 1),
 433SOC_SINGLE_TLV("Second Source Capture Volume", TDA7419_SECOND_SRC_REG,
 434               TDA7419_SECOND_SRC_GAIN, 15, 0, tlv_src_gain),
 435SOC_ENUM("Subwoofer Cut-off Frequency", soc_enum_sub_cut_off_freq),
 436SOC_ENUM("Middle Center Frequency", soc_enum_middle_center_freq),
 437SOC_ENUM("Bass Center Frequency", soc_enum_bass_center_freq),
 438SOC_SINGLE("Bass DC Mode Switch", TDA7419_SUB_MID_BASS_REG,
 439           TDA7419_BASS_DC_MODE, 1, 1),
 440SOC_SINGLE("Smoothing Filter Switch", TDA7419_SUB_MID_BASS_REG,
 441           TDA7419_SMOOTHING_FILTER, 1, 1),
 442TDA7419_DOUBLE_R_TLV("Front Speaker Playback Volume", TDA7419_ATTENUATOR_LF_REG,
 443                     TDA7419_ATTENUATOR_RF_REG, 0x7f, -80, 15, 0x10, 0,
 444                     tlv_volume),
 445SOC_SINGLE("Left Front Soft Step Switch", TDA7419_ATTENUATOR_LF_REG,
 446           TDA7419_VOLUME_SOFT_STEP, 1, 1),
 447SOC_SINGLE("Right Front Soft Step Switch", TDA7419_ATTENUATOR_RF_REG,
 448           TDA7419_VOLUME_SOFT_STEP, 1, 1),
 449TDA7419_DOUBLE_R_TLV("Rear Speaker Playback Volume", TDA7419_ATTENUATOR_LR_REG,
 450                     TDA7419_ATTENUATOR_RR_REG, 0x7f, -80, 15, 0x10, 0,
 451                     tlv_volume),
 452SOC_SINGLE("Left Rear Soft Step Switch", TDA7419_ATTENUATOR_LR_REG,
 453           TDA7419_VOLUME_SOFT_STEP, 1, 1),
 454SOC_SINGLE("Right Rear Soft Step Switch", TDA7419_ATTENUATOR_RR_REG,
 455           TDA7419_VOLUME_SOFT_STEP, 1, 1),
 456TDA7419_SINGLE_TLV("Mixing Capture Volume", TDA7419_MIXING_LEVEL_REG,
 457                   0x7f, -80, 15, 0x10, 0, tlv_volume),
 458SOC_SINGLE("Mixing Level Soft Step Switch", TDA7419_MIXING_LEVEL_REG,
 459           TDA7419_VOLUME_SOFT_STEP, 1, 1),
 460TDA7419_SINGLE_TLV("Subwoofer Playback Volume", TDA7419_ATTENUATOR_SUB_REG,
 461                   0x7f, -80, 15, 0x10, 0, tlv_volume),
 462SOC_SINGLE("Subwoofer Soft Step Switch", TDA7419_ATTENUATOR_SUB_REG,
 463           TDA7419_VOLUME_SOFT_STEP, 1, 1),
 464SOC_ENUM("Spectrum Analyzer Q Factor", soc_enum_sa_q_factor),
 465SOC_ENUM("Spectrum Analyzer Reset Mode", soc_enum_reset_mode),
 466SOC_ENUM("Spectrum Analyzer Source", soc_enum_sa_src),
 467SOC_SINGLE("Spectrum Analyzer Run Switch", TDA7419_SA_CLK_AC_REG,
 468           TDA7419_SA_RUN, 1, 1),
 469SOC_SINGLE("Spectrum Analyzer Reset Switch", TDA7419_SA_CLK_AC_REG,
 470           TDA7419_RESET, 1, 1),
 471SOC_ENUM("Clock Source", soc_enum_clk_src),
 472SOC_ENUM("Coupling Mode", soc_enum_coupling_mode),
 473};
 474
 475static const struct snd_kcontrol_new soc_mixer_lf_output_controls[] = {
 476        SOC_DAPM_SINGLE("Mix to LF Speaker Switch",
 477                        TDA7419_MIXING_GAIN_REG,
 478                        TDA7419_MIX_LF, 1, 1),
 479};
 480
 481static const struct snd_kcontrol_new soc_mixer_rf_output_controls[] = {
 482        SOC_DAPM_SINGLE("Mix to RF Speaker Switch",
 483                        TDA7419_MIXING_GAIN_REG,
 484                        TDA7419_MIX_RF, 1, 1),
 485};
 486
 487static const struct snd_kcontrol_new soc_mix_enable_switch_controls[] = {
 488        SOC_DAPM_SINGLE("Switch", TDA7419_MIXING_GAIN_REG,
 489                        TDA7419_MIX_ENABLE, 1, 1),
 490};
 491
 492static const struct snd_kcontrol_new soc_sub_enable_switch_controls[] = {
 493        SOC_DAPM_SINGLE("Switch", TDA7419_MIXING_GAIN_REG,
 494                        TDA7419_MIX_ENABLE, 1, 1),
 495};
 496
 497static const struct snd_soc_dapm_widget tda7419_dapm_widgets[] = {
 498        SND_SOC_DAPM_INPUT("SE3L"),
 499        SND_SOC_DAPM_INPUT("SE3R"),
 500        SND_SOC_DAPM_INPUT("SE2L"),
 501        SND_SOC_DAPM_INPUT("SE2R"),
 502        SND_SOC_DAPM_INPUT("SE1L"),
 503        SND_SOC_DAPM_INPUT("SE1R"),
 504        SND_SOC_DAPM_INPUT("DIFFL"),
 505        SND_SOC_DAPM_INPUT("DIFFR"),
 506        SND_SOC_DAPM_INPUT("MIX"),
 507
 508        SND_SOC_DAPM_MUX("Main Source Select", SND_SOC_NOPM,
 509                         0, 0, &soc_mux_main_src_sel),
 510        SND_SOC_DAPM_MUX("Second Source Select", SND_SOC_NOPM,
 511                         0, 0, &soc_mux_second_src_sel),
 512        SND_SOC_DAPM_MUX("Rear Speaker Source", SND_SOC_NOPM,
 513                         0, 0, &soc_mux_rear_spkr_src),
 514
 515        SND_SOC_DAPM_SWITCH("Mix Enable", SND_SOC_NOPM,
 516                        0, 0, &soc_mix_enable_switch_controls[0]),
 517        SND_SOC_DAPM_MIXER_NAMED_CTL("LF Output Mixer", SND_SOC_NOPM,
 518                        0, 0, &soc_mixer_lf_output_controls[0],
 519                        ARRAY_SIZE(soc_mixer_lf_output_controls)),
 520        SND_SOC_DAPM_MIXER_NAMED_CTL("RF Output Mixer", SND_SOC_NOPM,
 521                        0, 0, &soc_mixer_rf_output_controls[0],
 522                        ARRAY_SIZE(soc_mixer_rf_output_controls)),
 523
 524        SND_SOC_DAPM_SWITCH("Subwoofer Enable",
 525                        SND_SOC_NOPM, 0, 0,
 526                        &soc_sub_enable_switch_controls[0]),
 527
 528        SND_SOC_DAPM_OUTPUT("OUTLF"),
 529        SND_SOC_DAPM_OUTPUT("OUTRF"),
 530        SND_SOC_DAPM_OUTPUT("OUTLR"),
 531        SND_SOC_DAPM_OUTPUT("OUTRR"),
 532        SND_SOC_DAPM_OUTPUT("OUTSW"),
 533};
 534
 535static const struct snd_soc_dapm_route tda7419_dapm_routes[] = {
 536        {"Main Source Select", "SE3", "SE3L"},
 537        {"Main Source Select", "SE3", "SE3R"},
 538        {"Main Source Select", "SE2", "SE2L"},
 539        {"Main Source Select", "SE2", "SE2R"},
 540        {"Main Source Select", "SE1", "SE1L"},
 541        {"Main Source Select", "SE1", "SE1R"},
 542        {"Main Source Select", "SE", "DIFFL"},
 543        {"Main Source Select", "SE", "DIFFR"},
 544        {"Main Source Select", "QD", "DIFFL"},
 545        {"Main Source Select", "QD", "DIFFR"},
 546
 547        {"Second Source Select", "SE3", "SE3L"},
 548        {"Second Source Select", "SE3", "SE3R"},
 549        {"Second Source Select", "SE2", "SE2L"},
 550        {"Second Source Select", "SE2", "SE2R"},
 551        {"Second Source Select", "SE1", "SE1L"},
 552        {"Second Source Select", "SE1", "SE1R"},
 553        {"Second Source Select", "SE", "DIFFL"},
 554        {"Second Source Select", "SE", "DIFFR"},
 555        {"Second Source Select", "QD", "DIFFL"},
 556        {"Second Source Select", "QD", "DIFFR"},
 557
 558        {"Rear Speaker Source", "Main", "Main Source Select"},
 559        {"Rear Speaker Source", "Second", "Second Source Select"},
 560
 561        {"Subwoofer Enable", "Switch", "Main Source Select"},
 562
 563        {"Mix Enable", "Switch", "MIX"},
 564
 565        {"LF Output Mixer", NULL, "Main Source Select"},
 566        {"LF Output Mixer", "Mix to LF Speaker Switch", "Mix Enable"},
 567        {"RF Output Mixer", NULL, "Main Source Select"},
 568        {"RF Output Mixer", "Mix to RF Speaker Switch", "Mix Enable"},
 569
 570        {"OUTLF", NULL, "LF Output Mixer"},
 571        {"OUTRF", NULL, "RF Output Mixer"},
 572        {"OUTLR", NULL, "Rear Speaker Source"},
 573        {"OUTRR", NULL, "Rear Speaker Source"},
 574        {"OUTSW", NULL, "Subwoofer Enable"},
 575};
 576
 577static const struct snd_soc_component_driver tda7419_component_driver = {
 578        .name                   = "tda7419",
 579        .controls               = tda7419_controls,
 580        .num_controls           = ARRAY_SIZE(tda7419_controls),
 581        .dapm_widgets           = tda7419_dapm_widgets,
 582        .num_dapm_widgets       = ARRAY_SIZE(tda7419_dapm_widgets),
 583        .dapm_routes            = tda7419_dapm_routes,
 584        .num_dapm_routes        = ARRAY_SIZE(tda7419_dapm_routes),
 585};
 586
 587static int tda7419_probe(struct i2c_client *i2c,
 588                         const struct i2c_device_id *id)
 589{
 590        struct tda7419_data *tda7419;
 591        int i, ret;
 592
 593        tda7419 = devm_kzalloc(&i2c->dev,
 594                               sizeof(struct tda7419_data),
 595                               GFP_KERNEL);
 596        if (tda7419 == NULL)
 597                return -ENOMEM;
 598
 599        i2c_set_clientdata(i2c, tda7419);
 600
 601        tda7419->regmap = devm_regmap_init_i2c(i2c, &tda7419_regmap_config);
 602        if (IS_ERR(tda7419->regmap)) {
 603                ret = PTR_ERR(tda7419->regmap);
 604                dev_err(&i2c->dev, "error initializing regmap: %d\n",
 605                                ret);
 606                return ret;
 607        }
 608
 609        /*
 610         * Reset registers to power-on defaults. The part does not provide a
 611         * soft-reset function and the registers are not readable. This ensures
 612         * that the cache matches register contents even if the registers have
 613         * been previously initialized and not power cycled before probe.
 614         */
 615        for (i = 0; i < ARRAY_SIZE(tda7419_regmap_defaults); i++)
 616                regmap_write(tda7419->regmap,
 617                             tda7419_regmap_defaults[i].reg,
 618                             tda7419_regmap_defaults[i].def);
 619
 620        ret = devm_snd_soc_register_component(&i2c->dev,
 621                &tda7419_component_driver, NULL, 0);
 622        if (ret < 0) {
 623                dev_err(&i2c->dev, "error registering component: %d\n",
 624                                ret);
 625        }
 626
 627        return ret;
 628}
 629
 630static const struct i2c_device_id tda7419_i2c_id[] = {
 631        { "tda7419", 0 },
 632        { }
 633};
 634MODULE_DEVICE_TABLE(i2c, tda7419_i2c_id);
 635
 636static const struct of_device_id tda7419_of_match[] = {
 637        { .compatible = "st,tda7419" },
 638        { },
 639};
 640
 641static struct i2c_driver tda7419_driver = {
 642        .driver = {
 643                .name   = "tda7419",
 644                .of_match_table = tda7419_of_match,
 645        },
 646        .probe          = tda7419_probe,
 647        .id_table       = tda7419_i2c_id,
 648};
 649
 650module_i2c_driver(tda7419_driver);
 651
 652MODULE_AUTHOR("Matt Porter <mporter@konsulko.com>");
 653MODULE_DESCRIPTION("TDA7419 audio processor driver");
 654MODULE_LICENSE("GPL");
 655