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