1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * es8316.c -- es8316 ALSA SoC audio driver 4 * Copyright Everest Semiconductor Co.,Ltd 5 * 6 * Authors: David Yang <yangxiaohua@everest-semi.com>, 7 * Daniel Drake <drake@endlessm.com> 8 */ 9 10 #include <linux/module.h> 11 #include <linux/acpi.h> 12 #include <linux/delay.h> 13 #include <linux/i2c.h> 14 #include <linux/mod_devicetable.h> 15 #include <linux/mutex.h> 16 #include <linux/regmap.h> 17 #include <sound/pcm.h> 18 #include <sound/pcm_params.h> 19 #include <sound/soc.h> 20 #include <sound/soc-dapm.h> 21 #include <sound/tlv.h> 22 #include <sound/jack.h> 23 #include "es8316.h" 24 25 /* In slave mode at single speed, the codec is documented as accepting 5 26 * MCLK/LRCK ratios, but we also add ratio 400, which is commonly used on 27 * Intel Cherry Trail platforms (19.2MHz MCLK, 48kHz LRCK). 28 */ 29 #define NR_SUPPORTED_MCLK_LRCK_RATIOS 6 30 static const unsigned int supported_mclk_lrck_ratios[] = { 31 256, 384, 400, 512, 768, 1024 32 }; 33 34 struct es8316_priv { 35 struct mutex lock; 36 struct regmap *regmap; 37 struct snd_soc_component *component; 38 struct snd_soc_jack *jack; 39 int irq; 40 unsigned int sysclk; 41 unsigned int allowed_rates[NR_SUPPORTED_MCLK_LRCK_RATIOS]; 42 struct snd_pcm_hw_constraint_list sysclk_constraints; 43 bool jd_inverted; 44 }; 45 46 /* 47 * ES8316 controls 48 */ 49 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(dac_vol_tlv, -9600, 50, 1); 50 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(adc_vol_tlv, -9600, 50, 1); 51 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(alc_max_gain_tlv, -650, 150, 0); 52 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(alc_min_gain_tlv, -1200, 150, 0); 53 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(alc_target_tlv, -1650, 150, 0); 54 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(hpmixer_gain_tlv, -1200, 150, 0); 55 56 static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(adc_pga_gain_tlv, 57 0, 0, TLV_DB_SCALE_ITEM(-350, 0, 0), 58 1, 1, TLV_DB_SCALE_ITEM(0, 0, 0), 59 2, 2, TLV_DB_SCALE_ITEM(250, 0, 0), 60 3, 3, TLV_DB_SCALE_ITEM(450, 0, 0), 61 4, 4, TLV_DB_SCALE_ITEM(700, 0, 0), 62 5, 5, TLV_DB_SCALE_ITEM(1000, 0, 0), 63 6, 6, TLV_DB_SCALE_ITEM(1300, 0, 0), 64 7, 7, TLV_DB_SCALE_ITEM(1600, 0, 0), 65 8, 8, TLV_DB_SCALE_ITEM(1800, 0, 0), 66 9, 9, TLV_DB_SCALE_ITEM(2100, 0, 0), 67 10, 10, TLV_DB_SCALE_ITEM(2400, 0, 0), 68 ); 69 70 static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(hpout_vol_tlv, 71 0, 0, TLV_DB_SCALE_ITEM(-4800, 0, 0), 72 1, 3, TLV_DB_SCALE_ITEM(-2400, 1200, 0), 73 ); 74 75 static const char * const ng_type_txt[] = 76 { "Constant PGA Gain", "Mute ADC Output" }; 77 static const struct soc_enum ng_type = 78 SOC_ENUM_SINGLE(ES8316_ADC_ALC_NG, 6, 2, ng_type_txt); 79 80 static const char * const adcpol_txt[] = { "Normal", "Invert" }; 81 static const struct soc_enum adcpol = 82 SOC_ENUM_SINGLE(ES8316_ADC_MUTE, 1, 2, adcpol_txt); 83 static const char *const dacpol_txt[] = 84 { "Normal", "R Invert", "L Invert", "L + R Invert" }; 85 static const struct soc_enum dacpol = 86 SOC_ENUM_SINGLE(ES8316_DAC_SET1, 0, 4, dacpol_txt); 87 88 static const struct snd_kcontrol_new es8316_snd_controls[] = { 89 SOC_DOUBLE_TLV("Headphone Playback Volume", ES8316_CPHP_ICAL_VOL, 90 4, 0, 3, 1, hpout_vol_tlv), 91 SOC_DOUBLE_TLV("Headphone Mixer Volume", ES8316_HPMIX_VOL, 92 0, 4, 7, 0, hpmixer_gain_tlv), 93 94 SOC_ENUM("Playback Polarity", dacpol), 95 SOC_DOUBLE_R_TLV("DAC Playback Volume", ES8316_DAC_VOLL, 96 ES8316_DAC_VOLR, 0, 0xc0, 1, dac_vol_tlv), 97 SOC_SINGLE("DAC Soft Ramp Switch", ES8316_DAC_SET1, 4, 1, 1), 98 SOC_SINGLE("DAC Soft Ramp Rate", ES8316_DAC_SET1, 2, 4, 0), 99 SOC_SINGLE("DAC Notch Filter Switch", ES8316_DAC_SET2, 6, 1, 0), 100 SOC_SINGLE("DAC Double Fs Switch", ES8316_DAC_SET2, 7, 1, 0), 101 SOC_SINGLE("DAC Stereo Enhancement", ES8316_DAC_SET3, 0, 7, 0), 102 SOC_SINGLE("DAC Mono Mix Switch", ES8316_DAC_SET3, 3, 1, 0), 103 104 SOC_ENUM("Capture Polarity", adcpol), 105 SOC_SINGLE("Mic Boost Switch", ES8316_ADC_D2SEPGA, 0, 1, 0), 106 SOC_SINGLE_TLV("ADC Capture Volume", ES8316_ADC_VOLUME, 107 0, 0xc0, 1, adc_vol_tlv), 108 SOC_SINGLE_TLV("ADC PGA Gain Volume", ES8316_ADC_PGAGAIN, 109 4, 10, 0, adc_pga_gain_tlv), 110 SOC_SINGLE("ADC Soft Ramp Switch", ES8316_ADC_MUTE, 4, 1, 0), 111 SOC_SINGLE("ADC Double Fs Switch", ES8316_ADC_DMIC, 4, 1, 0), 112 113 SOC_SINGLE("ALC Capture Switch", ES8316_ADC_ALC1, 6, 1, 0), 114 SOC_SINGLE_TLV("ALC Capture Max Volume", ES8316_ADC_ALC1, 0, 28, 0, 115 alc_max_gain_tlv), 116 SOC_SINGLE_TLV("ALC Capture Min Volume", ES8316_ADC_ALC2, 0, 28, 0, 117 alc_min_gain_tlv), 118 SOC_SINGLE_TLV("ALC Capture Target Volume", ES8316_ADC_ALC3, 4, 10, 0, 119 alc_target_tlv), 120 SOC_SINGLE("ALC Capture Hold Time", ES8316_ADC_ALC3, 0, 10, 0), 121 SOC_SINGLE("ALC Capture Decay Time", ES8316_ADC_ALC4, 4, 10, 0), 122 SOC_SINGLE("ALC Capture Attack Time", ES8316_ADC_ALC4, 0, 10, 0), 123 SOC_SINGLE("ALC Capture Noise Gate Switch", ES8316_ADC_ALC_NG, 124 5, 1, 0), 125 SOC_SINGLE("ALC Capture Noise Gate Threshold", ES8316_ADC_ALC_NG, 126 0, 31, 0), 127 SOC_ENUM("ALC Capture Noise Gate Type", ng_type), 128 }; 129 130 /* Analog Input Mux */ 131 static const char * const es8316_analog_in_txt[] = { 132 "lin1-rin1", 133 "lin2-rin2", 134 "lin1-rin1 with 20db Boost", 135 "lin2-rin2 with 20db Boost" 136 }; 137 static const unsigned int es8316_analog_in_values[] = { 0, 1, 2, 3 }; 138 static const struct soc_enum es8316_analog_input_enum = 139 SOC_VALUE_ENUM_SINGLE(ES8316_ADC_PDN_LINSEL, 4, 3, 140 ARRAY_SIZE(es8316_analog_in_txt), 141 es8316_analog_in_txt, 142 es8316_analog_in_values); 143 static const struct snd_kcontrol_new es8316_analog_in_mux_controls = 144 SOC_DAPM_ENUM("Route", es8316_analog_input_enum); 145 146 static const char * const es8316_dmic_txt[] = { 147 "dmic disable", 148 "dmic data at high level", 149 "dmic data at low level", 150 }; 151 static const unsigned int es8316_dmic_values[] = { 0, 1, 2 }; 152 static const struct soc_enum es8316_dmic_src_enum = 153 SOC_VALUE_ENUM_SINGLE(ES8316_ADC_DMIC, 0, 3, 154 ARRAY_SIZE(es8316_dmic_txt), 155 es8316_dmic_txt, 156 es8316_dmic_values); 157 static const struct snd_kcontrol_new es8316_dmic_src_controls = 158 SOC_DAPM_ENUM("Route", es8316_dmic_src_enum); 159 160 /* hp mixer mux */ 161 static const char * const es8316_hpmux_texts[] = { 162 "lin1-rin1", 163 "lin2-rin2", 164 "lin-rin with Boost", 165 "lin-rin with Boost and PGA" 166 }; 167 168 static SOC_ENUM_SINGLE_DECL(es8316_left_hpmux_enum, ES8316_HPMIX_SEL, 169 4, es8316_hpmux_texts); 170 171 static const struct snd_kcontrol_new es8316_left_hpmux_controls = 172 SOC_DAPM_ENUM("Route", es8316_left_hpmux_enum); 173 174 static SOC_ENUM_SINGLE_DECL(es8316_right_hpmux_enum, ES8316_HPMIX_SEL, 175 0, es8316_hpmux_texts); 176 177 static const struct snd_kcontrol_new es8316_right_hpmux_controls = 178 SOC_DAPM_ENUM("Route", es8316_right_hpmux_enum); 179 180 /* headphone Output Mixer */ 181 static const struct snd_kcontrol_new es8316_out_left_mix[] = { 182 SOC_DAPM_SINGLE("LLIN Switch", ES8316_HPMIX_SWITCH, 6, 1, 0), 183 SOC_DAPM_SINGLE("Left DAC Switch", ES8316_HPMIX_SWITCH, 7, 1, 0), 184 }; 185 static const struct snd_kcontrol_new es8316_out_right_mix[] = { 186 SOC_DAPM_SINGLE("RLIN Switch", ES8316_HPMIX_SWITCH, 2, 1, 0), 187 SOC_DAPM_SINGLE("Right DAC Switch", ES8316_HPMIX_SWITCH, 3, 1, 0), 188 }; 189 190 /* DAC data source mux */ 191 static const char * const es8316_dacsrc_texts[] = { 192 "LDATA TO LDAC, RDATA TO RDAC", 193 "LDATA TO LDAC, LDATA TO RDAC", 194 "RDATA TO LDAC, RDATA TO RDAC", 195 "RDATA TO LDAC, LDATA TO RDAC", 196 }; 197 198 static SOC_ENUM_SINGLE_DECL(es8316_dacsrc_mux_enum, ES8316_DAC_SET1, 199 6, es8316_dacsrc_texts); 200 201 static const struct snd_kcontrol_new es8316_dacsrc_mux_controls = 202 SOC_DAPM_ENUM("Route", es8316_dacsrc_mux_enum); 203 204 static const struct snd_soc_dapm_widget es8316_dapm_widgets[] = { 205 SND_SOC_DAPM_SUPPLY("Bias", ES8316_SYS_PDN, 3, 1, NULL, 0), 206 SND_SOC_DAPM_SUPPLY("Analog power", ES8316_SYS_PDN, 4, 1, NULL, 0), 207 SND_SOC_DAPM_SUPPLY("Mic Bias", ES8316_SYS_PDN, 5, 1, NULL, 0), 208 209 SND_SOC_DAPM_INPUT("DMIC"), 210 SND_SOC_DAPM_INPUT("MIC1"), 211 SND_SOC_DAPM_INPUT("MIC2"), 212 213 /* Input Mux */ 214 SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0, 215 &es8316_analog_in_mux_controls), 216 217 SND_SOC_DAPM_SUPPLY("ADC Vref", ES8316_SYS_PDN, 1, 1, NULL, 0), 218 SND_SOC_DAPM_SUPPLY("ADC bias", ES8316_SYS_PDN, 2, 1, NULL, 0), 219 SND_SOC_DAPM_SUPPLY("ADC Clock", ES8316_CLKMGR_CLKSW, 3, 0, NULL, 0), 220 SND_SOC_DAPM_PGA("Line input PGA", ES8316_ADC_PDN_LINSEL, 221 7, 1, NULL, 0), 222 SND_SOC_DAPM_ADC("Mono ADC", NULL, ES8316_ADC_PDN_LINSEL, 6, 1), 223 SND_SOC_DAPM_MUX("Digital Mic Mux", SND_SOC_NOPM, 0, 0, 224 &es8316_dmic_src_controls), 225 226 /* Digital Interface */ 227 SND_SOC_DAPM_AIF_OUT("I2S OUT", "I2S1 Capture", 1, 228 ES8316_SERDATA_ADC, 6, 1), 229 SND_SOC_DAPM_AIF_IN("I2S IN", "I2S1 Playback", 0, 230 SND_SOC_NOPM, 0, 0), 231 232 SND_SOC_DAPM_MUX("DAC Source Mux", SND_SOC_NOPM, 0, 0, 233 &es8316_dacsrc_mux_controls), 234 235 SND_SOC_DAPM_SUPPLY("DAC Vref", ES8316_SYS_PDN, 0, 1, NULL, 0), 236 SND_SOC_DAPM_SUPPLY("DAC Clock", ES8316_CLKMGR_CLKSW, 2, 0, NULL, 0), 237 SND_SOC_DAPM_DAC("Right DAC", NULL, ES8316_DAC_PDN, 0, 1), 238 SND_SOC_DAPM_DAC("Left DAC", NULL, ES8316_DAC_PDN, 4, 1), 239 240 /* Headphone Output Side */ 241 SND_SOC_DAPM_MUX("Left Headphone Mux", SND_SOC_NOPM, 0, 0, 242 &es8316_left_hpmux_controls), 243 SND_SOC_DAPM_MUX("Right Headphone Mux", SND_SOC_NOPM, 0, 0, 244 &es8316_right_hpmux_controls), 245 SND_SOC_DAPM_MIXER("Left Headphone Mixer", ES8316_HPMIX_PDN, 246 5, 1, &es8316_out_left_mix[0], 247 ARRAY_SIZE(es8316_out_left_mix)), 248 SND_SOC_DAPM_MIXER("Right Headphone Mixer", ES8316_HPMIX_PDN, 249 1, 1, &es8316_out_right_mix[0], 250 ARRAY_SIZE(es8316_out_right_mix)), 251 SND_SOC_DAPM_PGA("Left Headphone Mixer Out", ES8316_HPMIX_PDN, 252 4, 1, NULL, 0), 253 SND_SOC_DAPM_PGA("Right Headphone Mixer Out", ES8316_HPMIX_PDN, 254 0, 1, NULL, 0), 255 256 SND_SOC_DAPM_OUT_DRV("Left Headphone Charge Pump", ES8316_CPHP_OUTEN, 257 6, 0, NULL, 0), 258 SND_SOC_DAPM_OUT_DRV("Right Headphone Charge Pump", ES8316_CPHP_OUTEN, 259 2, 0, NULL, 0), 260 SND_SOC_DAPM_SUPPLY("Headphone Charge Pump", ES8316_CPHP_PDN2, 261 5, 1, NULL, 0), 262 SND_SOC_DAPM_SUPPLY("Headphone Charge Pump Clock", ES8316_CLKMGR_CLKSW, 263 4, 0, NULL, 0), 264 265 SND_SOC_DAPM_OUT_DRV("Left Headphone Driver", ES8316_CPHP_OUTEN, 266 5, 0, NULL, 0), 267 SND_SOC_DAPM_OUT_DRV("Right Headphone Driver", ES8316_CPHP_OUTEN, 268 1, 0, NULL, 0), 269 SND_SOC_DAPM_SUPPLY("Headphone Out", ES8316_CPHP_PDN1, 2, 1, NULL, 0), 270 271 /* pdn_Lical and pdn_Rical bits are documented as Reserved, but must 272 * be explicitly unset in order to enable HP output 273 */ 274 SND_SOC_DAPM_SUPPLY("Left Headphone ical", ES8316_CPHP_ICAL_VOL, 275 7, 1, NULL, 0), 276 SND_SOC_DAPM_SUPPLY("Right Headphone ical", ES8316_CPHP_ICAL_VOL, 277 3, 1, NULL, 0), 278 279 SND_SOC_DAPM_OUTPUT("HPOL"), 280 SND_SOC_DAPM_OUTPUT("HPOR"), 281 }; 282 283 static const struct snd_soc_dapm_route es8316_dapm_routes[] = { 284 /* Recording */ 285 {"MIC1", NULL, "Mic Bias"}, 286 {"MIC2", NULL, "Mic Bias"}, 287 {"MIC1", NULL, "Bias"}, 288 {"MIC2", NULL, "Bias"}, 289 {"MIC1", NULL, "Analog power"}, 290 {"MIC2", NULL, "Analog power"}, 291 292 {"Differential Mux", "lin1-rin1", "MIC1"}, 293 {"Differential Mux", "lin2-rin2", "MIC2"}, 294 {"Line input PGA", NULL, "Differential Mux"}, 295 296 {"Mono ADC", NULL, "ADC Clock"}, 297 {"Mono ADC", NULL, "ADC Vref"}, 298 {"Mono ADC", NULL, "ADC bias"}, 299 {"Mono ADC", NULL, "Line input PGA"}, 300 301 /* It's not clear why, but to avoid recording only silence, 302 * the DAC clock must be running for the ADC to work. 303 */ 304 {"Mono ADC", NULL, "DAC Clock"}, 305 306 {"Digital Mic Mux", "dmic disable", "Mono ADC"}, 307 308 {"I2S OUT", NULL, "Digital Mic Mux"}, 309 310 /* Playback */ 311 {"DAC Source Mux", "LDATA TO LDAC, RDATA TO RDAC", "I2S IN"}, 312 313 {"Left DAC", NULL, "DAC Clock"}, 314 {"Right DAC", NULL, "DAC Clock"}, 315 316 {"Left DAC", NULL, "DAC Vref"}, 317 {"Right DAC", NULL, "DAC Vref"}, 318 319 {"Left DAC", NULL, "DAC Source Mux"}, 320 {"Right DAC", NULL, "DAC Source Mux"}, 321 322 {"Left Headphone Mux", "lin-rin with Boost and PGA", "Line input PGA"}, 323 {"Right Headphone Mux", "lin-rin with Boost and PGA", "Line input PGA"}, 324 325 {"Left Headphone Mixer", "LLIN Switch", "Left Headphone Mux"}, 326 {"Left Headphone Mixer", "Left DAC Switch", "Left DAC"}, 327 328 {"Right Headphone Mixer", "RLIN Switch", "Right Headphone Mux"}, 329 {"Right Headphone Mixer", "Right DAC Switch", "Right DAC"}, 330 331 {"Left Headphone Mixer Out", NULL, "Left Headphone Mixer"}, 332 {"Right Headphone Mixer Out", NULL, "Right Headphone Mixer"}, 333 334 {"Left Headphone Charge Pump", NULL, "Left Headphone Mixer Out"}, 335 {"Right Headphone Charge Pump", NULL, "Right Headphone Mixer Out"}, 336 337 {"Left Headphone Charge Pump", NULL, "Headphone Charge Pump"}, 338 {"Right Headphone Charge Pump", NULL, "Headphone Charge Pump"}, 339 340 {"Left Headphone Charge Pump", NULL, "Headphone Charge Pump Clock"}, 341 {"Right Headphone Charge Pump", NULL, "Headphone Charge Pump Clock"}, 342 343 {"Left Headphone Driver", NULL, "Left Headphone Charge Pump"}, 344 {"Right Headphone Driver", NULL, "Right Headphone Charge Pump"}, 345 346 {"HPOL", NULL, "Left Headphone Driver"}, 347 {"HPOR", NULL, "Right Headphone Driver"}, 348 349 {"HPOL", NULL, "Left Headphone ical"}, 350 {"HPOR", NULL, "Right Headphone ical"}, 351 352 {"Headphone Out", NULL, "Bias"}, 353 {"Headphone Out", NULL, "Analog power"}, 354 {"HPOL", NULL, "Headphone Out"}, 355 {"HPOR", NULL, "Headphone Out"}, 356 }; 357 358 static int es8316_set_dai_sysclk(struct snd_soc_dai *codec_dai, 359 int clk_id, unsigned int freq, int dir) 360 { 361 struct snd_soc_component *component = codec_dai->component; 362 struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component); 363 int i; 364 int count = 0; 365 366 es8316->sysclk = freq; 367 368 if (freq == 0) 369 return 0; 370 371 /* Limit supported sample rates to ones that can be autodetected 372 * by the codec running in slave mode. 373 */ 374 for (i = 0; i < NR_SUPPORTED_MCLK_LRCK_RATIOS; i++) { 375 const unsigned int ratio = supported_mclk_lrck_ratios[i]; 376 377 if (freq % ratio == 0) 378 es8316->allowed_rates[count++] = freq / ratio; 379 } 380 381 es8316->sysclk_constraints.list = es8316->allowed_rates; 382 es8316->sysclk_constraints.count = count; 383 384 return 0; 385 } 386 387 static int es8316_set_dai_fmt(struct snd_soc_dai *codec_dai, 388 unsigned int fmt) 389 { 390 struct snd_soc_component *component = codec_dai->component; 391 u8 serdata1 = 0; 392 u8 serdata2 = 0; 393 u8 clksw; 394 u8 mask; 395 396 if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS) { 397 dev_err(component->dev, "Codec driver only supports slave mode\n"); 398 return -EINVAL; 399 } 400 401 if ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) != SND_SOC_DAIFMT_I2S) { 402 dev_err(component->dev, "Codec driver only supports I2S format\n"); 403 return -EINVAL; 404 } 405 406 /* Clock inversion */ 407 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 408 case SND_SOC_DAIFMT_NB_NF: 409 break; 410 case SND_SOC_DAIFMT_IB_IF: 411 serdata1 |= ES8316_SERDATA1_BCLK_INV; 412 serdata2 |= ES8316_SERDATA2_ADCLRP; 413 break; 414 case SND_SOC_DAIFMT_IB_NF: 415 serdata1 |= ES8316_SERDATA1_BCLK_INV; 416 break; 417 case SND_SOC_DAIFMT_NB_IF: 418 serdata2 |= ES8316_SERDATA2_ADCLRP; 419 break; 420 default: 421 return -EINVAL; 422 } 423 424 mask = ES8316_SERDATA1_MASTER | ES8316_SERDATA1_BCLK_INV; 425 snd_soc_component_update_bits(component, ES8316_SERDATA1, mask, serdata1); 426 427 mask = ES8316_SERDATA2_FMT_MASK | ES8316_SERDATA2_ADCLRP; 428 snd_soc_component_update_bits(component, ES8316_SERDATA_ADC, mask, serdata2); 429 snd_soc_component_update_bits(component, ES8316_SERDATA_DAC, mask, serdata2); 430 431 /* Enable BCLK and MCLK inputs in slave mode */ 432 clksw = ES8316_CLKMGR_CLKSW_MCLK_ON | ES8316_CLKMGR_CLKSW_BCLK_ON; 433 snd_soc_component_update_bits(component, ES8316_CLKMGR_CLKSW, clksw, clksw); 434 435 return 0; 436 } 437 438 static int es8316_pcm_startup(struct snd_pcm_substream *substream, 439 struct snd_soc_dai *dai) 440 { 441 struct snd_soc_component *component = dai->component; 442 struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component); 443 444 if (es8316->sysclk == 0) { 445 dev_err(component->dev, "No sysclk provided\n"); 446 return -EINVAL; 447 } 448 449 /* The set of sample rates that can be supported depends on the 450 * MCLK supplied to the CODEC. 451 */ 452 snd_pcm_hw_constraint_list(substream->runtime, 0, 453 SNDRV_PCM_HW_PARAM_RATE, 454 &es8316->sysclk_constraints); 455 456 return 0; 457 } 458 459 static int es8316_pcm_hw_params(struct snd_pcm_substream *substream, 460 struct snd_pcm_hw_params *params, 461 struct snd_soc_dai *dai) 462 { 463 struct snd_soc_component *component = dai->component; 464 struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component); 465 u8 wordlen = 0; 466 467 if (!es8316->sysclk) { 468 dev_err(component->dev, "No MCLK configured\n"); 469 return -EINVAL; 470 } 471 472 switch (params_format(params)) { 473 case SNDRV_PCM_FORMAT_S16_LE: 474 wordlen = ES8316_SERDATA2_LEN_16; 475 break; 476 case SNDRV_PCM_FORMAT_S20_3LE: 477 wordlen = ES8316_SERDATA2_LEN_20; 478 break; 479 case SNDRV_PCM_FORMAT_S24_LE: 480 wordlen = ES8316_SERDATA2_LEN_24; 481 break; 482 case SNDRV_PCM_FORMAT_S32_LE: 483 wordlen = ES8316_SERDATA2_LEN_32; 484 break; 485 default: 486 return -EINVAL; 487 } 488 489 snd_soc_component_update_bits(component, ES8316_SERDATA_DAC, 490 ES8316_SERDATA2_LEN_MASK, wordlen); 491 snd_soc_component_update_bits(component, ES8316_SERDATA_ADC, 492 ES8316_SERDATA2_LEN_MASK, wordlen); 493 return 0; 494 } 495 496 static int es8316_mute(struct snd_soc_dai *dai, int mute) 497 { 498 snd_soc_component_update_bits(dai->component, ES8316_DAC_SET1, 0x20, 499 mute ? 0x20 : 0); 500 return 0; 501 } 502 503 #define ES8316_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ 504 SNDRV_PCM_FMTBIT_S24_LE) 505 506 static const struct snd_soc_dai_ops es8316_ops = { 507 .startup = es8316_pcm_startup, 508 .hw_params = es8316_pcm_hw_params, 509 .set_fmt = es8316_set_dai_fmt, 510 .set_sysclk = es8316_set_dai_sysclk, 511 .digital_mute = es8316_mute, 512 }; 513 514 static struct snd_soc_dai_driver es8316_dai = { 515 .name = "ES8316 HiFi", 516 .playback = { 517 .stream_name = "Playback", 518 .channels_min = 1, 519 .channels_max = 2, 520 .rates = SNDRV_PCM_RATE_8000_48000, 521 .formats = ES8316_FORMATS, 522 }, 523 .capture = { 524 .stream_name = "Capture", 525 .channels_min = 1, 526 .channels_max = 2, 527 .rates = SNDRV_PCM_RATE_8000_48000, 528 .formats = ES8316_FORMATS, 529 }, 530 .ops = &es8316_ops, 531 .symmetric_rates = 1, 532 }; 533 534 static void es8316_enable_micbias_for_mic_gnd_short_detect( 535 struct snd_soc_component *component) 536 { 537 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 538 539 snd_soc_dapm_mutex_lock(dapm); 540 snd_soc_dapm_force_enable_pin_unlocked(dapm, "Bias"); 541 snd_soc_dapm_force_enable_pin_unlocked(dapm, "Analog power"); 542 snd_soc_dapm_force_enable_pin_unlocked(dapm, "Mic Bias"); 543 snd_soc_dapm_sync_unlocked(dapm); 544 snd_soc_dapm_mutex_unlock(dapm); 545 546 msleep(20); 547 } 548 549 static void es8316_disable_micbias_for_mic_gnd_short_detect( 550 struct snd_soc_component *component) 551 { 552 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 553 554 snd_soc_dapm_mutex_lock(dapm); 555 snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Bias"); 556 snd_soc_dapm_disable_pin_unlocked(dapm, "Analog power"); 557 snd_soc_dapm_disable_pin_unlocked(dapm, "Bias"); 558 snd_soc_dapm_sync_unlocked(dapm); 559 snd_soc_dapm_mutex_unlock(dapm); 560 } 561 562 static irqreturn_t es8316_irq(int irq, void *data) 563 { 564 struct es8316_priv *es8316 = data; 565 struct snd_soc_component *comp = es8316->component; 566 unsigned int flags; 567 568 mutex_lock(&es8316->lock); 569 570 regmap_read(es8316->regmap, ES8316_GPIO_FLAG, &flags); 571 if (flags == 0x00) 572 goto out; /* Powered-down / reset */ 573 574 /* Catch spurious IRQ before set_jack is called */ 575 if (!es8316->jack) 576 goto out; 577 578 if (es8316->jd_inverted) 579 flags ^= ES8316_GPIO_FLAG_HP_NOT_INSERTED; 580 581 dev_dbg(comp->dev, "gpio flags %#04x\n", flags); 582 if (flags & ES8316_GPIO_FLAG_HP_NOT_INSERTED) { 583 /* Jack removed, or spurious IRQ? */ 584 if (es8316->jack->status & SND_JACK_MICROPHONE) 585 es8316_disable_micbias_for_mic_gnd_short_detect(comp); 586 587 if (es8316->jack->status & SND_JACK_HEADPHONE) { 588 snd_soc_jack_report(es8316->jack, 0, 589 SND_JACK_HEADSET | SND_JACK_BTN_0); 590 dev_dbg(comp->dev, "jack unplugged\n"); 591 } 592 } else if (!(es8316->jack->status & SND_JACK_HEADPHONE)) { 593 /* Jack inserted, determine type */ 594 es8316_enable_micbias_for_mic_gnd_short_detect(comp); 595 regmap_read(es8316->regmap, ES8316_GPIO_FLAG, &flags); 596 if (es8316->jd_inverted) 597 flags ^= ES8316_GPIO_FLAG_HP_NOT_INSERTED; 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 /* 640 * Init es8316->jd_inverted here and not in the probe, as we cannot 641 * guarantee that the bytchr-es8316 driver, which might set this 642 * property, will probe before us. 643 */ 644 es8316->jd_inverted = device_property_read_bool(component->dev, 645 "everest,jack-detect-inverted"); 646 647 mutex_lock(&es8316->lock); 648 649 es8316->jack = jack; 650 651 if (es8316->jack->status & SND_JACK_MICROPHONE) 652 es8316_enable_micbias_for_mic_gnd_short_detect(component); 653 654 snd_soc_component_update_bits(component, ES8316_GPIO_DEBOUNCE, 655 ES8316_GPIO_ENABLE_INTERRUPT, 656 ES8316_GPIO_ENABLE_INTERRUPT); 657 658 mutex_unlock(&es8316->lock); 659 660 /* Enable irq and sync initial jack state */ 661 enable_irq(es8316->irq); 662 es8316_irq(es8316->irq, es8316); 663 } 664 665 static void es8316_disable_jack_detect(struct snd_soc_component *component) 666 { 667 struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component); 668 669 disable_irq(es8316->irq); 670 671 mutex_lock(&es8316->lock); 672 673 snd_soc_component_update_bits(component, ES8316_GPIO_DEBOUNCE, 674 ES8316_GPIO_ENABLE_INTERRUPT, 0); 675 676 if (es8316->jack->status & SND_JACK_MICROPHONE) { 677 es8316_disable_micbias_for_mic_gnd_short_detect(component); 678 snd_soc_jack_report(es8316->jack, 0, SND_JACK_BTN_0); 679 } 680 681 es8316->jack = NULL; 682 683 mutex_unlock(&es8316->lock); 684 } 685 686 static int es8316_set_jack(struct snd_soc_component *component, 687 struct snd_soc_jack *jack, void *data) 688 { 689 if (jack) 690 es8316_enable_jack_detect(component, jack); 691 else 692 es8316_disable_jack_detect(component); 693 694 return 0; 695 } 696 697 static int es8316_probe(struct snd_soc_component *component) 698 { 699 struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component); 700 701 es8316->component = component; 702 703 /* Reset codec and enable current state machine */ 704 snd_soc_component_write(component, ES8316_RESET, 0x3f); 705 usleep_range(5000, 5500); 706 snd_soc_component_write(component, ES8316_RESET, ES8316_RESET_CSM_ON); 707 msleep(30); 708 709 /* 710 * Documentation is unclear, but this value from the vendor driver is 711 * needed otherwise audio output is silent. 712 */ 713 snd_soc_component_write(component, ES8316_SYS_VMIDSEL, 0xff); 714 715 /* 716 * Documentation for this register is unclear and incomplete, 717 * but here is a vendor-provided value that improves volume 718 * and quality for Intel CHT platforms. 719 */ 720 snd_soc_component_write(component, ES8316_CLKMGR_ADCOSR, 0x32); 721 722 return 0; 723 } 724 725 static const struct snd_soc_component_driver soc_component_dev_es8316 = { 726 .probe = es8316_probe, 727 .set_jack = es8316_set_jack, 728 .controls = es8316_snd_controls, 729 .num_controls = ARRAY_SIZE(es8316_snd_controls), 730 .dapm_widgets = es8316_dapm_widgets, 731 .num_dapm_widgets = ARRAY_SIZE(es8316_dapm_widgets), 732 .dapm_routes = es8316_dapm_routes, 733 .num_dapm_routes = ARRAY_SIZE(es8316_dapm_routes), 734 .use_pmdown_time = 1, 735 .endianness = 1, 736 .non_legacy_dai_naming = 1, 737 }; 738 739 static const struct regmap_range es8316_volatile_ranges[] = { 740 regmap_reg_range(ES8316_GPIO_FLAG, ES8316_GPIO_FLAG), 741 }; 742 743 static const struct regmap_access_table es8316_volatile_table = { 744 .yes_ranges = es8316_volatile_ranges, 745 .n_yes_ranges = ARRAY_SIZE(es8316_volatile_ranges), 746 }; 747 748 static const struct regmap_config es8316_regmap = { 749 .reg_bits = 8, 750 .val_bits = 8, 751 .max_register = 0x53, 752 .volatile_table = &es8316_volatile_table, 753 .cache_type = REGCACHE_RBTREE, 754 }; 755 756 static int es8316_i2c_probe(struct i2c_client *i2c_client, 757 const struct i2c_device_id *id) 758 { 759 struct device *dev = &i2c_client->dev; 760 struct es8316_priv *es8316; 761 int ret; 762 763 es8316 = devm_kzalloc(&i2c_client->dev, sizeof(struct es8316_priv), 764 GFP_KERNEL); 765 if (es8316 == NULL) 766 return -ENOMEM; 767 768 i2c_set_clientdata(i2c_client, es8316); 769 770 es8316->regmap = devm_regmap_init_i2c(i2c_client, &es8316_regmap); 771 if (IS_ERR(es8316->regmap)) 772 return PTR_ERR(es8316->regmap); 773 774 es8316->irq = i2c_client->irq; 775 mutex_init(&es8316->lock); 776 777 ret = devm_request_threaded_irq(dev, es8316->irq, NULL, es8316_irq, 778 IRQF_TRIGGER_HIGH | IRQF_ONESHOT, 779 "es8316", es8316); 780 if (ret == 0) { 781 /* Gets re-enabled by es8316_set_jack() */ 782 disable_irq(es8316->irq); 783 } else { 784 dev_warn(dev, "Failed to get IRQ %d: %d\n", es8316->irq, ret); 785 es8316->irq = -ENXIO; 786 } 787 788 return devm_snd_soc_register_component(&i2c_client->dev, 789 &soc_component_dev_es8316, 790 &es8316_dai, 1); 791 } 792 793 static const struct i2c_device_id es8316_i2c_id[] = { 794 {"es8316", 0 }, 795 {} 796 }; 797 MODULE_DEVICE_TABLE(i2c, es8316_i2c_id); 798 799 static const struct of_device_id es8316_of_match[] = { 800 { .compatible = "everest,es8316", }, 801 {}, 802 }; 803 MODULE_DEVICE_TABLE(of, es8316_of_match); 804 805 static const struct acpi_device_id es8316_acpi_match[] = { 806 {"ESSX8316", 0}, 807 {}, 808 }; 809 MODULE_DEVICE_TABLE(acpi, es8316_acpi_match); 810 811 static struct i2c_driver es8316_i2c_driver = { 812 .driver = { 813 .name = "es8316", 814 .acpi_match_table = ACPI_PTR(es8316_acpi_match), 815 .of_match_table = of_match_ptr(es8316_of_match), 816 }, 817 .probe = es8316_i2c_probe, 818 .id_table = es8316_i2c_id, 819 }; 820 module_i2c_driver(es8316_i2c_driver); 821 822 MODULE_DESCRIPTION("Everest Semi ES8316 ALSA SoC Codec Driver"); 823 MODULE_AUTHOR("David Yang <yangxiaohua@everest-semi.com>"); 824 MODULE_LICENSE("GPL v2"); 825