sound/soc/codecs/es8316.c

   1 /*
   2  * es8316.c -- es8316 ALSA SoC audio driver
   3  * Copyright Everest Semiconductor Co.,Ltd
   4  *
   5  * Authors: David Yang <yangxiaohua@everest-semi.com>,
   6  *          Daniel Drake <drake@endlessm.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  */
  12
  13 #include <linux/module.h>
  14 #include <linux/acpi.h>
  15 #include <linux/delay.h>
  16 #include <linux/i2c.h>
  17 #include <linux/mod_devicetable.h>
  18 #include <linux/mutex.h>
  19 #include <linux/regmap.h>
  20 #include <sound/pcm.h>
  21 #include <sound/pcm_params.h>
  22 #include <sound/soc.h>
  23 #include <sound/soc-dapm.h>
  24 #include <sound/tlv.h>
  25 #include <sound/jack.h>
  26 #include "es8316.h"
  27
  28 /* In slave mode at single speed, the codec is documented as accepting 5
  29  * MCLK/LRCK ratios, but we also add ratio 400, which is commonly used on
  30  * Intel Cherry Trail platforms (19.2MHz MCLK, 48kHz LRCK).
  31  */
  32 #define NR_SUPPORTED_MCLK_LRCK_RATIOS 6
  33 static const unsigned int supported_mclk_lrck_ratios[] = {
  34         256, 384, 400, 512, 768, 1024
  35 };
  36
  37 struct es8316_priv {
  38         struct mutex lock;
  39         struct regmap *regmap;
  40         struct snd_soc_component *component;
  41         struct snd_soc_jack *jack;
  42         int irq;
  43         unsigned int sysclk;
  44         unsigned int allowed_rates[NR_SUPPORTED_MCLK_LRCK_RATIOS];
  45         struct snd_pcm_hw_constraint_list sysclk_constraints;
  46 };
  47
  48 /*
  49  * ES8316 controls
  50  */
  51 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(dac_vol_tlv, -9600, 50, 1);
  52 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(adc_vol_tlv, -9600, 50, 1);
  53 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(alc_max_gain_tlv, -650, 150, 0);
  54 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(alc_min_gain_tlv, -1200, 150, 0);
  55 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(alc_target_tlv, -1650, 150, 0);
  56 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(hpmixer_gain_tlv, -1200, 150, 0);
  57
  58 static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(adc_pga_gain_tlv,
  59         0, 0, TLV_DB_SCALE_ITEM(-350, 0, 0),
  60         1, 1, TLV_DB_SCALE_ITEM(0, 0, 0),
  61         2, 2, TLV_DB_SCALE_ITEM(250, 0, 0),
  62         3, 3, TLV_DB_SCALE_ITEM(450, 0, 0),
  63         4, 4, TLV_DB_SCALE_ITEM(700, 0, 0),
  64         5, 5, TLV_DB_SCALE_ITEM(1000, 0, 0),
  65         6, 6, TLV_DB_SCALE_ITEM(1300, 0, 0),
  66         7, 7, TLV_DB_SCALE_ITEM(1600, 0, 0),
  67         8, 8, TLV_DB_SCALE_ITEM(1800, 0, 0),
  68         9, 9, TLV_DB_SCALE_ITEM(2100, 0, 0),
  69         10, 10, TLV_DB_SCALE_ITEM(2400, 0, 0),
  70 );
  71
  72 static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(hpout_vol_tlv,
  73         0, 0, TLV_DB_SCALE_ITEM(-4800, 0, 0),
  74         1, 3, TLV_DB_SCALE_ITEM(-2400, 1200, 0),
  75 );
  76
  77 static const char * const ng_type_txt[] =
  78         { "Constant PGA Gain", "Mute ADC Output" };
  79 static const struct soc_enum ng_type =
  80         SOC_ENUM_SINGLE(ES8316_ADC_ALC_NG, 6, 2, ng_type_txt);
  81
  82 static const char * const adcpol_txt[] = { "Normal", "Invert" };
  83 static const struct soc_enum adcpol =
  84         SOC_ENUM_SINGLE(ES8316_ADC_MUTE, 1, 2, adcpol_txt);
  85 static const char *const dacpol_txt[] =
  86         { "Normal", "R Invert", "L Invert", "L + R Invert" };
  87 static const struct soc_enum dacpol =
  88         SOC_ENUM_SINGLE(ES8316_DAC_SET1, 0, 4, dacpol_txt);
  89
  90 static const struct snd_kcontrol_new es8316_snd_controls[] = {
  91         SOC_DOUBLE_TLV("Headphone Playback Volume", ES8316_CPHP_ICAL_VOL,
  92                        4, 0, 3, 1, hpout_vol_tlv),
  93         SOC_DOUBLE_TLV("Headphone Mixer Volume", ES8316_HPMIX_VOL,
  94                        0, 4, 7, 0, hpmixer_gain_tlv),
  95
  96         SOC_ENUM("Playback Polarity", dacpol),
  97         SOC_DOUBLE_R_TLV("DAC Playback Volume", ES8316_DAC_VOLL,
  98                          ES8316_DAC_VOLR, 0, 0xc0, 1, dac_vol_tlv),
  99         SOC_SINGLE("DAC Soft Ramp Switch", ES8316_DAC_SET1, 4, 1, 1),
 100         SOC_SINGLE("DAC Soft Ramp Rate", ES8316_DAC_SET1, 2, 4, 0),
 101         SOC_SINGLE("DAC Notch Filter Switch", ES8316_DAC_SET2, 6, 1, 0),
 102         SOC_SINGLE("DAC Double Fs Switch", ES8316_DAC_SET2, 7, 1, 0),
 103         SOC_SINGLE("DAC Stereo Enhancement", ES8316_DAC_SET3, 0, 7, 0),
 104
 105         SOC_ENUM("Capture Polarity", adcpol),
 106         SOC_SINGLE("Mic Boost Switch", ES8316_ADC_D2SEPGA, 0, 1, 0),
 107         SOC_SINGLE_TLV("ADC Capture Volume", ES8316_ADC_VOLUME,
 108                        0, 0xc0, 1, adc_vol_tlv),
 109         SOC_SINGLE_TLV("ADC PGA Gain Volume", ES8316_ADC_PGAGAIN,
 110                        4, 10, 0, adc_pga_gain_tlv),
 111         SOC_SINGLE("ADC Soft Ramp Switch", ES8316_ADC_MUTE, 4, 1, 0),
 112         SOC_SINGLE("ADC Double Fs Switch", ES8316_ADC_DMIC, 4, 1, 0),
 113
 114         SOC_SINGLE("ALC Capture Switch", ES8316_ADC_ALC1, 6, 1, 0),
 115         SOC_SINGLE_TLV("ALC Capture Max Volume", ES8316_ADC_ALC1, 0, 28, 0,
 116                        alc_max_gain_tlv),
 117         SOC_SINGLE_TLV("ALC Capture Min Volume", ES8316_ADC_ALC2, 0, 28, 0,
 118                        alc_min_gain_tlv),
 119         SOC_SINGLE_TLV("ALC Capture Target Volume", ES8316_ADC_ALC3, 4, 10, 0,
 120                        alc_target_tlv),
 121         SOC_SINGLE("ALC Capture Hold Time", ES8316_ADC_ALC3, 0, 10, 0),
 122         SOC_SINGLE("ALC Capture Decay Time", ES8316_ADC_ALC4, 4, 10, 0),
 123         SOC_SINGLE("ALC Capture Attack Time", ES8316_ADC_ALC4, 0, 10, 0),
 124         SOC_SINGLE("ALC Capture Noise Gate Switch", ES8316_ADC_ALC_NG,
 125                    5, 1, 0),
 126         SOC_SINGLE("ALC Capture Noise Gate Threshold", ES8316_ADC_ALC_NG,
 127                    0, 31, 0),
 128         SOC_ENUM("ALC Capture Noise Gate Type", ng_type),
 129 };
 130
 131 /* Analog Input Mux */
 132 static const char * const es8316_analog_in_txt[] = {
 133                 "lin1-rin1",
 134                 "lin2-rin2",
 135                 "lin1-rin1 with 20db Boost",
 136                 "lin2-rin2 with 20db Boost"
 137 };
 138 static const unsigned int es8316_analog_in_values[] = { 0, 1, 2, 3 };
 139 static const struct soc_enum es8316_analog_input_enum =
 140         SOC_VALUE_ENUM_SINGLE(ES8316_ADC_PDN_LINSEL, 4, 3,
 141                               ARRAY_SIZE(es8316_analog_in_txt),
 142                               es8316_analog_in_txt,
 143                               es8316_analog_in_values);
 144 static const struct snd_kcontrol_new es8316_analog_in_mux_controls =
 145         SOC_DAPM_ENUM("Route", es8316_analog_input_enum);
 146
 147 static const char * const es8316_dmic_txt[] = {
 148                 "dmic disable",
 149                 "dmic data at high level",
 150                 "dmic data at low level",
 151 };
 152 static const unsigned int es8316_dmic_values[] = { 0, 1, 2 };
 153 static const struct soc_enum es8316_dmic_src_enum =
 154         SOC_VALUE_ENUM_SINGLE(ES8316_ADC_DMIC, 0, 3,
 155                               ARRAY_SIZE(es8316_dmic_txt),
 156                               es8316_dmic_txt,
 157                               es8316_dmic_values);
 158 static const struct snd_kcontrol_new es8316_dmic_src_controls =
 159         SOC_DAPM_ENUM("Route", es8316_dmic_src_enum);
 160
 161 /* hp mixer mux */
 162 static const char * const es8316_hpmux_texts[] = {
 163         "lin1-rin1",
 164         "lin2-rin2",
 165         "lin-rin with Boost",
 166         "lin-rin with Boost and PGA"
 167 };
 168
 169 static const unsigned int es8316_hpmux_values[] = { 0, 1, 2, 3 };
 170
 171 static SOC_ENUM_SINGLE_DECL(es8316_left_hpmux_enum, ES8316_HPMIX_SEL,
 172         4, es8316_hpmux_texts);
 173
 174 static const struct snd_kcontrol_new es8316_left_hpmux_controls =
 175         SOC_DAPM_ENUM("Route", es8316_left_hpmux_enum);
 176
 177 static SOC_ENUM_SINGLE_DECL(es8316_right_hpmux_enum, ES8316_HPMIX_SEL,
 178         0, es8316_hpmux_texts);
 179
 180 static const struct snd_kcontrol_new es8316_right_hpmux_controls =
 181         SOC_DAPM_ENUM("Route", es8316_right_hpmux_enum);
 182
 183 /* headphone Output Mixer */
 184 static const struct snd_kcontrol_new es8316_out_left_mix[] = {
 185         SOC_DAPM_SINGLE("LLIN Switch", ES8316_HPMIX_SWITCH, 6, 1, 0),
 186         SOC_DAPM_SINGLE("Left DAC Switch", ES8316_HPMIX_SWITCH, 7, 1, 0),
 187 };
 188 static const struct snd_kcontrol_new es8316_out_right_mix[] = {
 189         SOC_DAPM_SINGLE("RLIN Switch", ES8316_HPMIX_SWITCH, 2, 1, 0),
 190         SOC_DAPM_SINGLE("Right DAC Switch", ES8316_HPMIX_SWITCH, 3, 1, 0),
 191 };
 192
 193 /* DAC data source mux */
 194 static const char * const es8316_dacsrc_texts[] = {
 195         "LDATA TO LDAC, RDATA TO RDAC",
 196         "LDATA TO LDAC, LDATA TO RDAC",
 197         "RDATA TO LDAC, RDATA TO RDAC",
 198         "RDATA TO LDAC, LDATA TO RDAC",
 199 };
 200
 201 static const unsigned int es8316_dacsrc_values[] = { 0, 1, 2, 3 };
 202
 203 static SOC_ENUM_SINGLE_DECL(es8316_dacsrc_mux_enum, ES8316_DAC_SET1,
 204         6, es8316_dacsrc_texts);
 205
 206 static const struct snd_kcontrol_new es8316_dacsrc_mux_controls =
 207         SOC_DAPM_ENUM("Route", es8316_dacsrc_mux_enum);
 208
 209 static const struct snd_soc_dapm_widget es8316_dapm_widgets[] = {
 210         SND_SOC_DAPM_SUPPLY("Bias", ES8316_SYS_PDN, 3, 1, NULL, 0),
 211         SND_SOC_DAPM_SUPPLY("Analog power", ES8316_SYS_PDN, 4, 1, NULL, 0),
 212         SND_SOC_DAPM_SUPPLY("Mic Bias", ES8316_SYS_PDN, 5, 1, NULL, 0),
 213
 214         SND_SOC_DAPM_INPUT("DMIC"),
 215         SND_SOC_DAPM_INPUT("MIC1"),
 216         SND_SOC_DAPM_INPUT("MIC2"),
 217
 218         /* Input Mux */
 219         SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0,
 220                          &es8316_analog_in_mux_controls),
 221
 222         SND_SOC_DAPM_SUPPLY("ADC Vref", ES8316_SYS_PDN, 1, 1, NULL, 0),
 223         SND_SOC_DAPM_SUPPLY("ADC bias", ES8316_SYS_PDN, 2, 1, NULL, 0),
 224         SND_SOC_DAPM_SUPPLY("ADC Clock", ES8316_CLKMGR_CLKSW, 3, 0, NULL, 0),
 225         SND_SOC_DAPM_PGA("Line input PGA", ES8316_ADC_PDN_LINSEL,
 226                          7, 1, NULL, 0),
 227         SND_SOC_DAPM_ADC("Mono ADC", NULL, ES8316_ADC_PDN_LINSEL, 6, 1),
 228         SND_SOC_DAPM_MUX("Digital Mic Mux", SND_SOC_NOPM, 0, 0,
 229                          &es8316_dmic_src_controls),
 230
 231         /* Digital Interface */
 232         SND_SOC_DAPM_AIF_OUT("I2S OUT", "I2S1 Capture",  1,
 233                              ES8316_SERDATA_ADC, 6, 1),
 234         SND_SOC_DAPM_AIF_IN("I2S IN", "I2S1 Playback", 0,
 235                             SND_SOC_NOPM, 0, 0),
 236
 237         SND_SOC_DAPM_MUX("DAC Source Mux", SND_SOC_NOPM, 0, 0,
 238                          &es8316_dacsrc_mux_controls),
 239
 240         SND_SOC_DAPM_SUPPLY("DAC Vref", ES8316_SYS_PDN, 0, 1, NULL, 0),
 241         SND_SOC_DAPM_SUPPLY("DAC Clock", ES8316_CLKMGR_CLKSW, 2, 0, NULL, 0),
 242         SND_SOC_DAPM_DAC("Right DAC", NULL, ES8316_DAC_PDN, 0, 1),
 243         SND_SOC_DAPM_DAC("Left DAC", NULL, ES8316_DAC_PDN, 4, 1),
 244
 245         /* Headphone Output Side */
 246         SND_SOC_DAPM_MUX("Left Headphone Mux", SND_SOC_NOPM, 0, 0,
 247                          &es8316_left_hpmux_controls),
 248         SND_SOC_DAPM_MUX("Right Headphone Mux", SND_SOC_NOPM, 0, 0,
 249                          &es8316_right_hpmux_controls),
 250         SND_SOC_DAPM_MIXER("Left Headphone Mixer", ES8316_HPMIX_PDN,
 251                            5, 1, &es8316_out_left_mix[0],
 252                            ARRAY_SIZE(es8316_out_left_mix)),
 253         SND_SOC_DAPM_MIXER("Right Headphone Mixer", ES8316_HPMIX_PDN,
 254                            1, 1, &es8316_out_right_mix[0],
 255                            ARRAY_SIZE(es8316_out_right_mix)),
 256         SND_SOC_DAPM_PGA("Left Headphone Mixer Out", ES8316_HPMIX_PDN,
 257                          4, 1, NULL, 0),
 258         SND_SOC_DAPM_PGA("Right Headphone Mixer Out", ES8316_HPMIX_PDN,
 259                          0, 1, NULL, 0),
 260
 261         SND_SOC_DAPM_OUT_DRV("Left Headphone Charge Pump", ES8316_CPHP_OUTEN,
 262                              6, 0, NULL, 0),
 263         SND_SOC_DAPM_OUT_DRV("Right Headphone Charge Pump", ES8316_CPHP_OUTEN,
 264                              2, 0, NULL, 0),
 265         SND_SOC_DAPM_SUPPLY("Headphone Charge Pump", ES8316_CPHP_PDN2,
 266                             5, 1, NULL, 0),
 267         SND_SOC_DAPM_SUPPLY("Headphone Charge Pump Clock", ES8316_CLKMGR_CLKSW,
 268                             4, 0, NULL, 0),
 269
 270         SND_SOC_DAPM_OUT_DRV("Left Headphone Driver", ES8316_CPHP_OUTEN,
 271                              5, 0, NULL, 0),
 272         SND_SOC_DAPM_OUT_DRV("Right Headphone Driver", ES8316_CPHP_OUTEN,
 273                              1, 0, NULL, 0),
 274         SND_SOC_DAPM_SUPPLY("Headphone Out", ES8316_CPHP_PDN1, 2, 1, NULL, 0),
 275
 276         /* pdn_Lical and pdn_Rical bits are documented as Reserved, but must
 277          * be explicitly unset in order to enable HP output
 278          */
 279         SND_SOC_DAPM_SUPPLY("Left Headphone ical", ES8316_CPHP_ICAL_VOL,
 280                             7, 1, NULL, 0),
 281         SND_SOC_DAPM_SUPPLY("Right Headphone ical", ES8316_CPHP_ICAL_VOL,
 282                             3, 1, NULL, 0),
 283
 284         SND_SOC_DAPM_OUTPUT("HPOL"),
 285         SND_SOC_DAPM_OUTPUT("HPOR"),
 286 };
 287
 288 static const struct snd_soc_dapm_route es8316_dapm_routes[] = {
 289         /* Recording */
 290         {"MIC1", NULL, "Mic Bias"},
 291         {"MIC2", NULL, "Mic Bias"},
 292         {"MIC1", NULL, "Bias"},
 293         {"MIC2", NULL, "Bias"},
 294         {"MIC1", NULL, "Analog power"},
 295         {"MIC2", NULL, "Analog power"},
 296
 297         {"Differential Mux", "lin1-rin1", "MIC1"},
 298         {"Differential Mux", "lin2-rin2", "MIC2"},
 299         {"Line input PGA", NULL, "Differential Mux"},
 300
 301         {"Mono ADC", NULL, "ADC Clock"},
 302         {"Mono ADC", NULL, "ADC Vref"},
 303         {"Mono ADC", NULL, "ADC bias"},
 304         {"Mono ADC", NULL, "Line input PGA"},
 305
 306         /* It's not clear why, but to avoid recording only silence,
 307          * the DAC clock must be running for the ADC to work.
 308          */
 309         {"Mono ADC", NULL, "DAC Clock"},
 310
 311         {"Digital Mic Mux", "dmic disable", "Mono ADC"},
 312
 313         {"I2S OUT", NULL, "Digital Mic Mux"},
 314
 315         /* Playback */
 316         {"DAC Source Mux", "LDATA TO LDAC, RDATA TO RDAC", "I2S IN"},
 317
 318         {"Left DAC", NULL, "DAC Clock"},
 319         {"Right DAC", NULL, "DAC Clock"},
 320
 321         {"Left DAC", NULL, "DAC Vref"},
 322         {"Right DAC", NULL, "DAC Vref"},
 323
 324         {"Left DAC", NULL, "DAC Source Mux"},
 325         {"Right DAC", NULL, "DAC Source Mux"},
 326
 327         {"Left Headphone Mux", "lin-rin with Boost and PGA", "Line input PGA"},
 328         {"Right Headphone Mux", "lin-rin with Boost and PGA", "Line input PGA"},
 329
 330         {"Left Headphone Mixer", "LLIN Switch", "Left Headphone Mux"},
 331         {"Left Headphone Mixer", "Left DAC Switch", "Left DAC"},
 332
 333         {"Right Headphone Mixer", "RLIN Switch", "Right Headphone Mux"},
 334         {"Right Headphone Mixer", "Right DAC Switch", "Right DAC"},
 335
 336         {"Left Headphone Mixer Out", NULL, "Left Headphone Mixer"},
 337         {"Right Headphone Mixer Out", NULL, "Right Headphone Mixer"},
 338
 339         {"Left Headphone Charge Pump", NULL, "Left Headphone Mixer Out"},
 340         {"Right Headphone Charge Pump", NULL, "Right Headphone Mixer Out"},
 341
 342         {"Left Headphone Charge Pump", NULL, "Headphone Charge Pump"},
 343         {"Right Headphone Charge Pump", NULL, "Headphone Charge Pump"},
 344
 345         {"Left Headphone Charge Pump", NULL, "Headphone Charge Pump Clock"},
 346         {"Right Headphone Charge Pump", NULL, "Headphone Charge Pump Clock"},
 347
 348         {"Left Headphone Driver", NULL, "Left Headphone Charge Pump"},
 349         {"Right Headphone Driver", NULL, "Right Headphone Charge Pump"},
 350
 351         {"HPOL", NULL, "Left Headphone Driver"},
 352         {"HPOR", NULL, "Right Headphone Driver"},
 353
 354         {"HPOL", NULL, "Left Headphone ical"},
 355         {"HPOR", NULL, "Right Headphone ical"},
 356
 357         {"Headphone Out", NULL, "Bias"},
 358         {"Headphone Out", NULL, "Analog power"},
 359         {"HPOL", NULL, "Headphone Out"},
 360         {"HPOR", NULL, "Headphone Out"},
 361 };
 362
 363 static int es8316_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 364                                  int clk_id, unsigned int freq, int dir)
 365 {
 366         struct snd_soc_component *component = codec_dai->component;
 367         struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component);
 368         int i;
 369         int count = 0;
 370
 371         es8316->sysclk = freq;
 372
 373         if (freq == 0)
 374                 return 0;
 375
 376         /* Limit supported sample rates to ones that can be autodetected
 377          * by the codec running in slave mode.
 378          */
 379         for (i = 0; i < NR_SUPPORTED_MCLK_LRCK_RATIOS; i++) {
 380                 const unsigned int ratio = supported_mclk_lrck_ratios[i];
 381
 382                 if (freq % ratio == 0)
 383                         es8316->allowed_rates[count++] = freq / ratio;
 384         }
 385
 386         es8316->sysclk_constraints.list = es8316->allowed_rates;
 387         es8316->sysclk_constraints.count = count;
 388
 389         return 0;
 390 }
 391
 392 static int es8316_set_dai_fmt(struct snd_soc_dai *codec_dai,
 393                               unsigned int fmt)
 394 {
 395         struct snd_soc_component *component = codec_dai->component;
 396         u8 serdata1 = 0;
 397         u8 serdata2 = 0;
 398         u8 clksw;
 399         u8 mask;
 400
 401         if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS) {
 402                 dev_err(component->dev, "Codec driver only supports slave mode\n");
 403                 return -EINVAL;
 404         }
 405
 406         if ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) != SND_SOC_DAIFMT_I2S) {
 407                 dev_err(component->dev, "Codec driver only supports I2S format\n");
 408                 return -EINVAL;
 409         }
 410
 411         /* Clock inversion */
 412         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 413         case SND_SOC_DAIFMT_NB_NF:
 414                 break;
 415         case SND_SOC_DAIFMT_IB_IF:
 416                 serdata1 |= ES8316_SERDATA1_BCLK_INV;
 417                 serdata2 |= ES8316_SERDATA2_ADCLRP;
 418                 break;
 419         case SND_SOC_DAIFMT_IB_NF:
 420                 serdata1 |= ES8316_SERDATA1_BCLK_INV;
 421                 break;
 422         case SND_SOC_DAIFMT_NB_IF:
 423                 serdata2 |= ES8316_SERDATA2_ADCLRP;
 424                 break;
 425         default:
 426                 return -EINVAL;
 427         }
 428
 429         mask = ES8316_SERDATA1_MASTER | ES8316_SERDATA1_BCLK_INV;
 430         snd_soc_component_update_bits(component, ES8316_SERDATA1, mask, serdata1);
 431
 432         mask = ES8316_SERDATA2_FMT_MASK | ES8316_SERDATA2_ADCLRP;
 433         snd_soc_component_update_bits(component, ES8316_SERDATA_ADC, mask, serdata2);
 434         snd_soc_component_update_bits(component, ES8316_SERDATA_DAC, mask, serdata2);
 435
 436         /* Enable BCLK and MCLK inputs in slave mode */
 437         clksw = ES8316_CLKMGR_CLKSW_MCLK_ON | ES8316_CLKMGR_CLKSW_BCLK_ON;
 438         snd_soc_component_update_bits(component, ES8316_CLKMGR_CLKSW, clksw, clksw);
 439
 440         return 0;
 441 }
 442
 443 static int es8316_pcm_startup(struct snd_pcm_substream *substream,
 444                               struct snd_soc_dai *dai)
 445 {
 446         struct snd_soc_component *component = dai->component;
 447         struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component);
 448
 449         if (es8316->sysclk == 0) {
 450                 dev_err(component->dev, "No sysclk provided\n");
 451                 return -EINVAL;
 452         }
 453
 454         /* The set of sample rates that can be supported depends on the
 455          * MCLK supplied to the CODEC.
 456          */
 457         snd_pcm_hw_constraint_list(substream->runtime, 0,
 458                                    SNDRV_PCM_HW_PARAM_RATE,
 459                                    &es8316->sysclk_constraints);
 460
 461         return 0;
 462 }
 463
 464 static int es8316_pcm_hw_params(struct snd_pcm_substream *substream,
 465                                 struct snd_pcm_hw_params *params,
 466                                 struct snd_soc_dai *dai)
 467 {
 468         struct snd_soc_component *component = dai->component;
 469         struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component);
 470         u8 wordlen = 0;
 471
 472         if (!es8316->sysclk) {
 473                 dev_err(component->dev, "No MCLK configured\n");
 474                 return -EINVAL;
 475         }
 476
 477         switch (params_format(params)) {
 478         case SNDRV_PCM_FORMAT_S16_LE:
 479                 wordlen = ES8316_SERDATA2_LEN_16;
 480                 break;
 481         case SNDRV_PCM_FORMAT_S20_3LE:
 482                 wordlen = ES8316_SERDATA2_LEN_20;
 483                 break;
 484         case SNDRV_PCM_FORMAT_S24_LE:
 485                 wordlen = ES8316_SERDATA2_LEN_24;
 486                 break;
 487         case SNDRV_PCM_FORMAT_S32_LE:
 488                 wordlen = ES8316_SERDATA2_LEN_32;
 489                 break;
 490         default:
 491                 return -EINVAL;
 492         }
 493
 494         snd_soc_component_update_bits(component, ES8316_SERDATA_DAC,
 495                             ES8316_SERDATA2_LEN_MASK, wordlen);
 496         snd_soc_component_update_bits(component, ES8316_SERDATA_ADC,
 497                             ES8316_SERDATA2_LEN_MASK, wordlen);
 498         return 0;
 499 }
 500
 501 static int es8316_mute(struct snd_soc_dai *dai, int mute)
 502 {
 503         snd_soc_component_update_bits(dai->component, ES8316_DAC_SET1, 0x20,
 504                             mute ? 0x20 : 0);
 505         return 0;
 506 }
 507
 508 #define ES8316_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
 509                         SNDRV_PCM_FMTBIT_S24_LE)
 510
 511 static const struct snd_soc_dai_ops es8316_ops = {
 512         .startup = es8316_pcm_startup,
 513         .hw_params = es8316_pcm_hw_params,
 514         .set_fmt = es8316_set_dai_fmt,
 515         .set_sysclk = es8316_set_dai_sysclk,
 516         .digital_mute = es8316_mute,
 517 };
 518
 519 static struct snd_soc_dai_driver es8316_dai = {
 520         .name = "ES8316 HiFi",
 521         .playback = {
 522                 .stream_name = "Playback",
 523                 .channels_min = 1,
 524                 .channels_max = 2,
 525                 .rates = SNDRV_PCM_RATE_8000_48000,
 526                 .formats = ES8316_FORMATS,
 527         },
 528         .capture = {
 529                 .stream_name = "Capture",
 530                 .channels_min = 1,
 531                 .channels_max = 2,
 532                 .rates = SNDRV_PCM_RATE_8000_48000,
 533                 .formats = ES8316_FORMATS,
 534         },
 535         .ops = &es8316_ops,
 536         .symmetric_rates = 1,
 537 };
 538
 539 static void es8316_enable_micbias_for_mic_gnd_short_detect(
 540         struct snd_soc_component *component)
 541 {
 542         struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 543
 544         snd_soc_dapm_mutex_lock(dapm);
 545         snd_soc_dapm_force_enable_pin_unlocked(dapm, "Bias");
 546         snd_soc_dapm_force_enable_pin_unlocked(dapm, "Analog power");
 547         snd_soc_dapm_force_enable_pin_unlocked(dapm, "Mic Bias");
 548         snd_soc_dapm_sync_unlocked(dapm);
 549         snd_soc_dapm_mutex_unlock(dapm);
 550
 551         msleep(20);
 552 }
 553
 554 static void es8316_disable_micbias_for_mic_gnd_short_detect(
 555         struct snd_soc_component *component)
 556 {
 557         struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 558
 559         snd_soc_dapm_mutex_lock(dapm);
 560         snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Bias");
 561         snd_soc_dapm_disable_pin_unlocked(dapm, "Analog power");
 562         snd_soc_dapm_disable_pin_unlocked(dapm, "Bias");
 563         snd_soc_dapm_sync_unlocked(dapm);
 564         snd_soc_dapm_mutex_unlock(dapm);
 565 }
 566
 567 static irqreturn_t es8316_irq(int irq, void *data)
 568 {
 569         struct es8316_priv *es8316 = data;
 570         struct snd_soc_component *comp = es8316->component;
 571         unsigned int flags;
 572
 573         mutex_lock(&es8316->lock);
 574
 575         regmap_read(es8316->regmap, ES8316_GPIO_FLAG, &flags);
 576         if (flags == 0x00)
 577                 goto out; /* Powered-down / reset */
 578
 579         /* Catch spurious IRQ before set_jack is called */
 580         if (!es8316->jack)
 581                 goto out;
 582
 583         dev_dbg(comp->dev, "gpio flags %#04x\n", flags);
 584         if (flags & ES8316_GPIO_FLAG_HP_NOT_INSERTED) {
 585                 /* Jack removed, or spurious IRQ? */
 586                 if (es8316->jack->status & SND_JACK_MICROPHONE)
 587                         es8316_disable_micbias_for_mic_gnd_short_detect(comp);
 588
 589                 if (es8316->jack->status & SND_JACK_HEADPHONE) {
 590                         snd_soc_jack_report(es8316->jack, 0,
 591                                             SND_JACK_HEADSET | SND_JACK_BTN_0);
 592                         dev_dbg(comp->dev, "jack unplugged\n");
 593                 }
 594         } else if (!(es8316->jack->status & SND_JACK_HEADPHONE)) {
 595                 /* Jack inserted, determine type */
 596                 es8316_enable_micbias_for_mic_gnd_short_detect(comp);
 597                 regmap_read(es8316->regmap, ES8316_GPIO_FLAG, &flags);
 598                 dev_dbg(comp->dev, "gpio flags %#04x\n", flags);
 599                 if (flags & ES8316_GPIO_FLAG_HP_NOT_INSERTED) {
 600                         /* Jack unplugged underneath us */
 601                         es8316_disable_micbias_for_mic_gnd_short_detect(comp);
 602                 } else if (flags & ES8316_GPIO_FLAG_GM_NOT_SHORTED) {
 603                         /* Open, headset */
 604                         snd_soc_jack_report(es8316->jack,
 605                                             SND_JACK_HEADSET,
 606                                             SND_JACK_HEADSET);
 607                         /* Keep mic-gnd-short detection on for button press */
 608                 } else {
 609                         /* Shorted, headphones */
 610                         snd_soc_jack_report(es8316->jack,
 611                                             SND_JACK_HEADPHONE,
 612                                             SND_JACK_HEADSET);
 613                         /* No longer need mic-gnd-short detection */
 614                         es8316_disable_micbias_for_mic_gnd_short_detect(comp);
 615                 }
 616         } else if (es8316->jack->status & SND_JACK_MICROPHONE) {
 617                 /* Interrupt while jack inserted, report button state */
 618                 if (flags & ES8316_GPIO_FLAG_GM_NOT_SHORTED) {
 619                         /* Open, button release */
 620                         snd_soc_jack_report(es8316->jack, 0, SND_JACK_BTN_0);
 621                 } else {
 622                         /* Short, button press */
 623                         snd_soc_jack_report(es8316->jack,
 624                                             SND_JACK_BTN_0,
 625                                             SND_JACK_BTN_0);
 626                 }
 627         }
 628
 629 out:
 630         mutex_unlock(&es8316->lock);
 631         return IRQ_HANDLED;
 632 }
 633
 634 static void es8316_enable_jack_detect(struct snd_soc_component *component,
 635                                       struct snd_soc_jack *jack)
 636 {
 637         struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component);
 638
 639         mutex_lock(&es8316->lock);
 640
 641         es8316->jack = jack;
 642
 643         if (es8316->jack->status & SND_JACK_MICROPHONE)
 644                 es8316_enable_micbias_for_mic_gnd_short_detect(component);
 645
 646         snd_soc_component_update_bits(component, ES8316_GPIO_DEBOUNCE,
 647                                       ES8316_GPIO_ENABLE_INTERRUPT,
 648                                       ES8316_GPIO_ENABLE_INTERRUPT);
 649
 650         mutex_unlock(&es8316->lock);
 651
 652         /* Enable irq and sync initial jack state */
 653         enable_irq(es8316->irq);
 654         es8316_irq(es8316->irq, es8316);
 655 }
 656
 657 static void es8316_disable_jack_detect(struct snd_soc_component *component)
 658 {
 659         struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component);
 660
 661         disable_irq(es8316->irq);
 662
 663         mutex_lock(&es8316->lock);
 664
 665         snd_soc_component_update_bits(component, ES8316_GPIO_DEBOUNCE,
 666                                       ES8316_GPIO_ENABLE_INTERRUPT, 0);
 667
 668         if (es8316->jack->status & SND_JACK_MICROPHONE) {
 669                 es8316_disable_micbias_for_mic_gnd_short_detect(component);
 670                 snd_soc_jack_report(es8316->jack, 0, SND_JACK_BTN_0);
 671         }
 672
 673         es8316->jack = NULL;
 674
 675         mutex_unlock(&es8316->lock);
 676 }
 677
 678 static int es8316_set_jack(struct snd_soc_component *component,
 679                            struct snd_soc_jack *jack, void *data)
 680 {
 681         if (jack)
 682                 es8316_enable_jack_detect(component, jack);
 683         else
 684                 es8316_disable_jack_detect(component);
 685
 686         return 0;
 687 }
 688
 689 static int es8316_probe(struct snd_soc_component *component)
 690 {
 691         struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component);
 692
 693         es8316->component = component;
 694
 695         /* Reset codec and enable current state machine */
 696         snd_soc_component_write(component, ES8316_RESET, 0x3f);
 697         usleep_range(5000, 5500);
 698         snd_soc_component_write(component, ES8316_RESET, ES8316_RESET_CSM_ON);
 699         msleep(30);
 700
 701         /*
 702          * Documentation is unclear, but this value from the vendor driver is
 703          * needed otherwise audio output is silent.
 704          */
 705         snd_soc_component_write(component, ES8316_SYS_VMIDSEL, 0xff);
 706
 707         /*
 708          * Documentation for this register is unclear and incomplete,
 709          * but here is a vendor-provided value that improves volume
 710          * and quality for Intel CHT platforms.
 711          */
 712         snd_soc_component_write(component, ES8316_CLKMGR_ADCOSR, 0x32);
 713
 714         return 0;
 715 }
 716
 717 static const struct snd_soc_component_driver soc_component_dev_es8316 = {
 718         .probe                  = es8316_probe,
 719         .set_jack               = es8316_set_jack,
 720         .controls               = es8316_snd_controls,
 721         .num_controls           = ARRAY_SIZE(es8316_snd_controls),
 722         .dapm_widgets           = es8316_dapm_widgets,
 723         .num_dapm_widgets       = ARRAY_SIZE(es8316_dapm_widgets),
 724         .dapm_routes            = es8316_dapm_routes,
 725         .num_dapm_routes        = ARRAY_SIZE(es8316_dapm_routes),
 726         .use_pmdown_time        = 1,
 727         .endianness             = 1,
 728         .non_legacy_dai_naming  = 1,
 729 };
 730
 731 static const struct regmap_range es8316_volatile_ranges[] = {
 732         regmap_reg_range(ES8316_GPIO_FLAG, ES8316_GPIO_FLAG),
 733 };
 734
 735 static const struct regmap_access_table es8316_volatile_table = {
 736         .yes_ranges     = es8316_volatile_ranges,
 737         .n_yes_ranges   = ARRAY_SIZE(es8316_volatile_ranges),
 738 };
 739
 740 static const struct regmap_config es8316_regmap = {
 741         .reg_bits = 8,
 742         .val_bits = 8,
 743         .max_register = 0x53,
 744         .volatile_table = &es8316_volatile_table,
 745         .cache_type = REGCACHE_RBTREE,
 746 };
 747
 748 static int es8316_i2c_probe(struct i2c_client *i2c_client,
 749                             const struct i2c_device_id *id)
 750 {
 751         struct device *dev = &i2c_client->dev;
 752         struct es8316_priv *es8316;
 753         int ret;
 754
 755         es8316 = devm_kzalloc(&i2c_client->dev, sizeof(struct es8316_priv),
 756                               GFP_KERNEL);
 757         if (es8316 == NULL)
 758                 return -ENOMEM;
 759
 760         i2c_set_clientdata(i2c_client, es8316);
 761
 762         es8316->regmap = devm_regmap_init_i2c(i2c_client, &es8316_regmap);
 763         if (IS_ERR(es8316->regmap))
 764                 return PTR_ERR(es8316->regmap);
 765
 766         es8316->irq = i2c_client->irq;
 767         mutex_init(&es8316->lock);
 768
 769         ret = devm_request_threaded_irq(dev, es8316->irq, NULL, es8316_irq,
 770                                         IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
 771                                         "es8316", es8316);
 772         if (ret == 0) {
 773                 /* Gets re-enabled by es8316_set_jack() */
 774                 disable_irq(es8316->irq);
 775         } else {
 776                 dev_warn(dev, "Failed to get IRQ %d: %d\n", es8316->irq, ret);
 777                 es8316->irq = -ENXIO;
 778         }
 779
 780         return devm_snd_soc_register_component(&i2c_client->dev,
 781                                       &soc_component_dev_es8316,
 782                                       &es8316_dai, 1);
 783 }
 784
 785 static const struct i2c_device_id es8316_i2c_id[] = {
 786         {"es8316", 0 },
 787         {}
 788 };
 789 MODULE_DEVICE_TABLE(i2c, es8316_i2c_id);
 790
 791 static const struct of_device_id es8316_of_match[] = {
 792         { .compatible = "everest,es8316", },
 793         {},
 794 };
 795 MODULE_DEVICE_TABLE(of, es8316_of_match);
 796
 797 static const struct acpi_device_id es8316_acpi_match[] = {
 798         {"ESSX8316", 0},
 799         {},
 800 };
 801 MODULE_DEVICE_TABLE(acpi, es8316_acpi_match);
 802
 803 static struct i2c_driver es8316_i2c_driver = {
 804         .driver = {
 805                 .name                   = "es8316",
 806                 .acpi_match_table       = ACPI_PTR(es8316_acpi_match),
 807                 .of_match_table         = of_match_ptr(es8316_of_match),
 808         },
 809         .probe          = es8316_i2c_probe,
 810         .id_table       = es8316_i2c_id,
 811 };
 812 module_i2c_driver(es8316_i2c_driver);
 813
 814 MODULE_DESCRIPTION("Everest Semi ES8316 ALSA SoC Codec Driver");
 815 MODULE_AUTHOR("David Yang <yangxiaohua@everest-semi.com>");
 816 MODULE_LICENSE("GPL v2");