rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 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/regmap.h> |
| 19 | #include <sound/pcm.h> |
| 20 | #include <sound/pcm_params.h> |
| 21 | #include <sound/soc.h> |
| 22 | #include <sound/soc-dapm.h> |
| 23 | #include <sound/tlv.h> |
| 24 | #include "es8316.h" |
| 25 | |
| 26 | /* In slave mode at single speed, the codec is documented as accepting 5 |
| 27 | * MCLK/LRCK ratios, but we also add ratio 400, which is commonly used on |
| 28 | * Intel Cherry Trail platforms (19.2MHz MCLK, 48kHz LRCK). |
| 29 | */ |
| 30 | #define NR_SUPPORTED_MCLK_LRCK_RATIOS 6 |
| 31 | static const unsigned int supported_mclk_lrck_ratios[] = { |
| 32 | 256, 384, 400, 512, 768, 1024 |
| 33 | }; |
| 34 | |
| 35 | struct es8316_priv { |
| 36 | unsigned int sysclk; |
| 37 | unsigned int allowed_rates[NR_SUPPORTED_MCLK_LRCK_RATIOS]; |
| 38 | struct snd_pcm_hw_constraint_list sysclk_constraints; |
| 39 | }; |
| 40 | |
| 41 | /* |
| 42 | * ES8316 controls |
| 43 | */ |
| 44 | static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(dac_vol_tlv, -9600, 50, 1); |
| 45 | static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(adc_vol_tlv, -9600, 50, 1); |
| 46 | static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(alc_max_gain_tlv, -650, 150, 0); |
| 47 | static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(alc_min_gain_tlv, -1200, 150, 0); |
| 48 | static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(alc_target_tlv, -1650, 150, 0); |
| 49 | static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(hpmixer_gain_tlv, |
| 50 | 0, 4, TLV_DB_SCALE_ITEM(-1200, 150, 0), |
| 51 | 8, 11, TLV_DB_SCALE_ITEM(-450, 150, 0), |
| 52 | ); |
| 53 | |
| 54 | static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(adc_pga_gain_tlv, |
| 55 | 0, 0, TLV_DB_SCALE_ITEM(-350, 0, 0), |
| 56 | 1, 1, TLV_DB_SCALE_ITEM(0, 0, 0), |
| 57 | 2, 2, TLV_DB_SCALE_ITEM(250, 0, 0), |
| 58 | 3, 3, TLV_DB_SCALE_ITEM(450, 0, 0), |
| 59 | 4, 4, TLV_DB_SCALE_ITEM(700, 0, 0), |
| 60 | 5, 5, TLV_DB_SCALE_ITEM(1000, 0, 0), |
| 61 | 6, 6, TLV_DB_SCALE_ITEM(1300, 0, 0), |
| 62 | 7, 7, TLV_DB_SCALE_ITEM(1600, 0, 0), |
| 63 | 8, 8, TLV_DB_SCALE_ITEM(1800, 0, 0), |
| 64 | 9, 9, TLV_DB_SCALE_ITEM(2100, 0, 0), |
| 65 | 10, 10, TLV_DB_SCALE_ITEM(2400, 0, 0), |
| 66 | ); |
| 67 | |
| 68 | static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(hpout_vol_tlv, |
| 69 | 0, 0, TLV_DB_SCALE_ITEM(-4800, 0, 0), |
| 70 | 1, 3, TLV_DB_SCALE_ITEM(-2400, 1200, 0), |
| 71 | ); |
| 72 | |
| 73 | static const char * const ng_type_txt[] = |
| 74 | { "Constant PGA Gain", "Mute ADC Output" }; |
| 75 | static const struct soc_enum ng_type = |
| 76 | SOC_ENUM_SINGLE(ES8316_ADC_ALC_NG, 6, 2, ng_type_txt); |
| 77 | |
| 78 | static const char * const adcpol_txt[] = { "Normal", "Invert" }; |
| 79 | static const struct soc_enum adcpol = |
| 80 | SOC_ENUM_SINGLE(ES8316_ADC_MUTE, 1, 2, adcpol_txt); |
| 81 | static const char *const dacpol_txt[] = |
| 82 | { "Normal", "R Invert", "L Invert", "L + R Invert" }; |
| 83 | static const struct soc_enum dacpol = |
| 84 | SOC_ENUM_SINGLE(ES8316_DAC_SET1, 0, 4, dacpol_txt); |
| 85 | |
| 86 | static const struct snd_kcontrol_new es8316_snd_controls[] = { |
| 87 | SOC_DOUBLE_TLV("Headphone Playback Volume", ES8316_CPHP_ICAL_VOL, |
| 88 | 4, 0, 3, 1, hpout_vol_tlv), |
| 89 | SOC_DOUBLE_TLV("Headphone Mixer Volume", ES8316_HPMIX_VOL, |
| 90 | 0, 4, 11, 0, hpmixer_gain_tlv), |
| 91 | |
| 92 | SOC_ENUM("Playback Polarity", dacpol), |
| 93 | SOC_DOUBLE_R_TLV("DAC Playback Volume", ES8316_DAC_VOLL, |
| 94 | ES8316_DAC_VOLR, 0, 0xc0, 1, dac_vol_tlv), |
| 95 | SOC_SINGLE("DAC Soft Ramp Switch", ES8316_DAC_SET1, 4, 1, 1), |
| 96 | SOC_SINGLE("DAC Soft Ramp Rate", ES8316_DAC_SET1, 2, 4, 0), |
| 97 | SOC_SINGLE("DAC Notch Filter Switch", ES8316_DAC_SET2, 6, 1, 0), |
| 98 | SOC_SINGLE("DAC Double Fs Switch", ES8316_DAC_SET2, 7, 1, 0), |
| 99 | SOC_SINGLE("DAC Stereo Enhancement", ES8316_DAC_SET3, 0, 7, 0), |
| 100 | |
| 101 | SOC_ENUM("Capture Polarity", adcpol), |
| 102 | SOC_SINGLE("Mic Boost Switch", ES8316_ADC_D2SEPGA, 0, 1, 0), |
| 103 | SOC_SINGLE_TLV("ADC Capture Volume", ES8316_ADC_VOLUME, |
| 104 | 0, 0xc0, 1, adc_vol_tlv), |
| 105 | SOC_SINGLE_TLV("ADC PGA Gain Volume", ES8316_ADC_PGAGAIN, |
| 106 | 4, 10, 0, adc_pga_gain_tlv), |
| 107 | SOC_SINGLE("ADC Soft Ramp Switch", ES8316_ADC_MUTE, 4, 1, 0), |
| 108 | SOC_SINGLE("ADC Double Fs Switch", ES8316_ADC_DMIC, 4, 1, 0), |
| 109 | |
| 110 | SOC_SINGLE("ALC Capture Switch", ES8316_ADC_ALC1, 6, 1, 0), |
| 111 | SOC_SINGLE_TLV("ALC Capture Max Volume", ES8316_ADC_ALC1, 0, 28, 0, |
| 112 | alc_max_gain_tlv), |
| 113 | SOC_SINGLE_TLV("ALC Capture Min Volume", ES8316_ADC_ALC2, 0, 28, 0, |
| 114 | alc_min_gain_tlv), |
| 115 | SOC_SINGLE_TLV("ALC Capture Target Volume", ES8316_ADC_ALC3, 4, 10, 0, |
| 116 | alc_target_tlv), |
| 117 | SOC_SINGLE("ALC Capture Hold Time", ES8316_ADC_ALC3, 0, 10, 0), |
| 118 | SOC_SINGLE("ALC Capture Decay Time", ES8316_ADC_ALC4, 4, 10, 0), |
| 119 | SOC_SINGLE("ALC Capture Attack Time", ES8316_ADC_ALC4, 0, 10, 0), |
| 120 | SOC_SINGLE("ALC Capture Noise Gate Switch", ES8316_ADC_ALC_NG, |
| 121 | 5, 1, 0), |
| 122 | SOC_SINGLE("ALC Capture Noise Gate Threshold", ES8316_ADC_ALC_NG, |
| 123 | 0, 31, 0), |
| 124 | SOC_ENUM("ALC Capture Noise Gate Type", ng_type), |
| 125 | }; |
| 126 | |
| 127 | /* Analog Input Mux */ |
| 128 | static const char * const es8316_analog_in_txt[] = { |
| 129 | "lin1-rin1", |
| 130 | "lin2-rin2", |
| 131 | "lin1-rin1 with 20db Boost", |
| 132 | "lin2-rin2 with 20db Boost" |
| 133 | }; |
| 134 | static const unsigned int es8316_analog_in_values[] = { 0, 1, 2, 3 }; |
| 135 | static const struct soc_enum es8316_analog_input_enum = |
| 136 | SOC_VALUE_ENUM_SINGLE(ES8316_ADC_PDN_LINSEL, 4, 3, |
| 137 | ARRAY_SIZE(es8316_analog_in_txt), |
| 138 | es8316_analog_in_txt, |
| 139 | es8316_analog_in_values); |
| 140 | static const struct snd_kcontrol_new es8316_analog_in_mux_controls = |
| 141 | SOC_DAPM_ENUM("Route", es8316_analog_input_enum); |
| 142 | |
| 143 | static const char * const es8316_dmic_txt[] = { |
| 144 | "dmic disable", |
| 145 | "dmic data at high level", |
| 146 | "dmic data at low level", |
| 147 | }; |
| 148 | static const unsigned int es8316_dmic_values[] = { 0, 1, 2 }; |
| 149 | static const struct soc_enum es8316_dmic_src_enum = |
| 150 | SOC_VALUE_ENUM_SINGLE(ES8316_ADC_DMIC, 0, 3, |
| 151 | ARRAY_SIZE(es8316_dmic_txt), |
| 152 | es8316_dmic_txt, |
| 153 | es8316_dmic_values); |
| 154 | static const struct snd_kcontrol_new es8316_dmic_src_controls = |
| 155 | SOC_DAPM_ENUM("Route", es8316_dmic_src_enum); |
| 156 | |
| 157 | /* hp mixer mux */ |
| 158 | static const char * const es8316_hpmux_texts[] = { |
| 159 | "lin1-rin1", |
| 160 | "lin2-rin2", |
| 161 | "lin-rin with Boost", |
| 162 | "lin-rin with Boost and PGA" |
| 163 | }; |
| 164 | |
| 165 | static const unsigned int es8316_hpmux_values[] = { 0, 1, 2, 3 }; |
| 166 | |
| 167 | static SOC_ENUM_SINGLE_DECL(es8316_left_hpmux_enum, ES8316_HPMIX_SEL, |
| 168 | 4, es8316_hpmux_texts); |
| 169 | |
| 170 | static const struct snd_kcontrol_new es8316_left_hpmux_controls = |
| 171 | SOC_DAPM_ENUM("Route", es8316_left_hpmux_enum); |
| 172 | |
| 173 | static SOC_ENUM_SINGLE_DECL(es8316_right_hpmux_enum, ES8316_HPMIX_SEL, |
| 174 | 0, es8316_hpmux_texts); |
| 175 | |
| 176 | static const struct snd_kcontrol_new es8316_right_hpmux_controls = |
| 177 | SOC_DAPM_ENUM("Route", es8316_right_hpmux_enum); |
| 178 | |
| 179 | /* headphone Output Mixer */ |
| 180 | static const struct snd_kcontrol_new es8316_out_left_mix[] = { |
| 181 | SOC_DAPM_SINGLE("LLIN Switch", ES8316_HPMIX_SWITCH, 6, 1, 0), |
| 182 | SOC_DAPM_SINGLE("Left DAC Switch", ES8316_HPMIX_SWITCH, 7, 1, 0), |
| 183 | }; |
| 184 | static const struct snd_kcontrol_new es8316_out_right_mix[] = { |
| 185 | SOC_DAPM_SINGLE("RLIN Switch", ES8316_HPMIX_SWITCH, 2, 1, 0), |
| 186 | SOC_DAPM_SINGLE("Right DAC Switch", ES8316_HPMIX_SWITCH, 3, 1, 0), |
| 187 | }; |
| 188 | |
| 189 | /* DAC data source mux */ |
| 190 | static const char * const es8316_dacsrc_texts[] = { |
| 191 | "LDATA TO LDAC, RDATA TO RDAC", |
| 192 | "LDATA TO LDAC, LDATA TO RDAC", |
| 193 | "RDATA TO LDAC, RDATA TO RDAC", |
| 194 | "RDATA TO LDAC, LDATA TO RDAC", |
| 195 | }; |
| 196 | |
| 197 | static const unsigned int es8316_dacsrc_values[] = { 0, 1, 2, 3 }; |
| 198 | |
| 199 | static SOC_ENUM_SINGLE_DECL(es8316_dacsrc_mux_enum, ES8316_DAC_SET1, |
| 200 | 6, es8316_dacsrc_texts); |
| 201 | |
| 202 | static const struct snd_kcontrol_new es8316_dacsrc_mux_controls = |
| 203 | SOC_DAPM_ENUM("Route", es8316_dacsrc_mux_enum); |
| 204 | |
| 205 | static const struct snd_soc_dapm_widget es8316_dapm_widgets[] = { |
| 206 | SND_SOC_DAPM_SUPPLY("Bias", ES8316_SYS_PDN, 3, 1, NULL, 0), |
| 207 | SND_SOC_DAPM_SUPPLY("Analog power", ES8316_SYS_PDN, 4, 1, NULL, 0), |
| 208 | SND_SOC_DAPM_SUPPLY("Mic Bias", ES8316_SYS_PDN, 5, 1, NULL, 0), |
| 209 | |
| 210 | SND_SOC_DAPM_INPUT("DMIC"), |
| 211 | SND_SOC_DAPM_INPUT("MIC1"), |
| 212 | SND_SOC_DAPM_INPUT("MIC2"), |
| 213 | |
| 214 | /* Input Mux */ |
| 215 | SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0, |
| 216 | &es8316_analog_in_mux_controls), |
| 217 | |
| 218 | SND_SOC_DAPM_SUPPLY("ADC Vref", ES8316_SYS_PDN, 1, 1, NULL, 0), |
| 219 | SND_SOC_DAPM_SUPPLY("ADC bias", ES8316_SYS_PDN, 2, 1, NULL, 0), |
| 220 | SND_SOC_DAPM_SUPPLY("ADC Clock", ES8316_CLKMGR_CLKSW, 3, 0, NULL, 0), |
| 221 | SND_SOC_DAPM_PGA("Line input PGA", ES8316_ADC_PDN_LINSEL, |
| 222 | 7, 1, NULL, 0), |
| 223 | SND_SOC_DAPM_ADC("Mono ADC", NULL, ES8316_ADC_PDN_LINSEL, 6, 1), |
| 224 | SND_SOC_DAPM_MUX("Digital Mic Mux", SND_SOC_NOPM, 0, 0, |
| 225 | &es8316_dmic_src_controls), |
| 226 | |
| 227 | /* Digital Interface */ |
| 228 | SND_SOC_DAPM_AIF_OUT("I2S OUT", "I2S1 Capture", 1, |
| 229 | ES8316_SERDATA_ADC, 6, 1), |
| 230 | SND_SOC_DAPM_AIF_IN("I2S IN", "I2S1 Playback", 0, |
| 231 | SND_SOC_NOPM, 0, 0), |
| 232 | |
| 233 | SND_SOC_DAPM_MUX("DAC Source Mux", SND_SOC_NOPM, 0, 0, |
| 234 | &es8316_dacsrc_mux_controls), |
| 235 | |
| 236 | SND_SOC_DAPM_SUPPLY("DAC Vref", ES8316_SYS_PDN, 0, 1, NULL, 0), |
| 237 | SND_SOC_DAPM_SUPPLY("DAC Clock", ES8316_CLKMGR_CLKSW, 2, 0, NULL, 0), |
| 238 | SND_SOC_DAPM_DAC("Right DAC", NULL, ES8316_DAC_PDN, 0, 1), |
| 239 | SND_SOC_DAPM_DAC("Left DAC", NULL, ES8316_DAC_PDN, 4, 1), |
| 240 | |
| 241 | /* Headphone Output Side */ |
| 242 | SND_SOC_DAPM_MUX("Left Headphone Mux", SND_SOC_NOPM, 0, 0, |
| 243 | &es8316_left_hpmux_controls), |
| 244 | SND_SOC_DAPM_MUX("Right Headphone Mux", SND_SOC_NOPM, 0, 0, |
| 245 | &es8316_right_hpmux_controls), |
| 246 | SND_SOC_DAPM_MIXER("Left Headphone Mixer", ES8316_HPMIX_PDN, |
| 247 | 5, 1, &es8316_out_left_mix[0], |
| 248 | ARRAY_SIZE(es8316_out_left_mix)), |
| 249 | SND_SOC_DAPM_MIXER("Right Headphone Mixer", ES8316_HPMIX_PDN, |
| 250 | 1, 1, &es8316_out_right_mix[0], |
| 251 | ARRAY_SIZE(es8316_out_right_mix)), |
| 252 | SND_SOC_DAPM_PGA("Left Headphone Mixer Out", ES8316_HPMIX_PDN, |
| 253 | 4, 1, NULL, 0), |
| 254 | SND_SOC_DAPM_PGA("Right Headphone Mixer Out", ES8316_HPMIX_PDN, |
| 255 | 0, 1, NULL, 0), |
| 256 | |
| 257 | SND_SOC_DAPM_OUT_DRV("Left Headphone Charge Pump", ES8316_CPHP_OUTEN, |
| 258 | 6, 0, NULL, 0), |
| 259 | SND_SOC_DAPM_OUT_DRV("Right Headphone Charge Pump", ES8316_CPHP_OUTEN, |
| 260 | 2, 0, NULL, 0), |
| 261 | SND_SOC_DAPM_SUPPLY("Headphone Charge Pump", ES8316_CPHP_PDN2, |
| 262 | 5, 1, NULL, 0), |
| 263 | SND_SOC_DAPM_SUPPLY("Headphone Charge Pump Clock", ES8316_CLKMGR_CLKSW, |
| 264 | 4, 0, NULL, 0), |
| 265 | |
| 266 | SND_SOC_DAPM_OUT_DRV("Left Headphone Driver", ES8316_CPHP_OUTEN, |
| 267 | 5, 0, NULL, 0), |
| 268 | SND_SOC_DAPM_OUT_DRV("Right Headphone Driver", ES8316_CPHP_OUTEN, |
| 269 | 1, 0, NULL, 0), |
| 270 | SND_SOC_DAPM_SUPPLY("Headphone Out", ES8316_CPHP_PDN1, 2, 1, NULL, 0), |
| 271 | |
| 272 | /* pdn_Lical and pdn_Rical bits are documented as Reserved, but must |
| 273 | * be explicitly unset in order to enable HP output |
| 274 | */ |
| 275 | SND_SOC_DAPM_SUPPLY("Left Headphone ical", ES8316_CPHP_ICAL_VOL, |
| 276 | 7, 1, NULL, 0), |
| 277 | SND_SOC_DAPM_SUPPLY("Right Headphone ical", ES8316_CPHP_ICAL_VOL, |
| 278 | 3, 1, NULL, 0), |
| 279 | |
| 280 | SND_SOC_DAPM_OUTPUT("HPOL"), |
| 281 | SND_SOC_DAPM_OUTPUT("HPOR"), |
| 282 | }; |
| 283 | |
| 284 | static const struct snd_soc_dapm_route es8316_dapm_routes[] = { |
| 285 | /* Recording */ |
| 286 | {"MIC1", NULL, "Mic Bias"}, |
| 287 | {"MIC2", NULL, "Mic Bias"}, |
| 288 | {"MIC1", NULL, "Bias"}, |
| 289 | {"MIC2", NULL, "Bias"}, |
| 290 | {"MIC1", NULL, "Analog power"}, |
| 291 | {"MIC2", NULL, "Analog power"}, |
| 292 | |
| 293 | {"Differential Mux", "lin1-rin1", "MIC1"}, |
| 294 | {"Differential Mux", "lin2-rin2", "MIC2"}, |
| 295 | {"Line input PGA", NULL, "Differential Mux"}, |
| 296 | |
| 297 | {"Mono ADC", NULL, "ADC Clock"}, |
| 298 | {"Mono ADC", NULL, "ADC Vref"}, |
| 299 | {"Mono ADC", NULL, "ADC bias"}, |
| 300 | {"Mono ADC", NULL, "Line input PGA"}, |
| 301 | |
| 302 | /* It's not clear why, but to avoid recording only silence, |
| 303 | * the DAC clock must be running for the ADC to work. |
| 304 | */ |
| 305 | {"Mono ADC", NULL, "DAC Clock"}, |
| 306 | |
| 307 | {"Digital Mic Mux", "dmic disable", "Mono ADC"}, |
| 308 | |
| 309 | {"I2S OUT", NULL, "Digital Mic Mux"}, |
| 310 | |
| 311 | /* Playback */ |
| 312 | {"DAC Source Mux", "LDATA TO LDAC, RDATA TO RDAC", "I2S IN"}, |
| 313 | |
| 314 | {"Left DAC", NULL, "DAC Clock"}, |
| 315 | {"Right DAC", NULL, "DAC Clock"}, |
| 316 | |
| 317 | {"Left DAC", NULL, "DAC Vref"}, |
| 318 | {"Right DAC", NULL, "DAC Vref"}, |
| 319 | |
| 320 | {"Left DAC", NULL, "DAC Source Mux"}, |
| 321 | {"Right DAC", NULL, "DAC Source Mux"}, |
| 322 | |
| 323 | {"Left Headphone Mux", "lin-rin with Boost and PGA", "Line input PGA"}, |
| 324 | {"Right Headphone Mux", "lin-rin with Boost and PGA", "Line input PGA"}, |
| 325 | |
| 326 | {"Left Headphone Mixer", "LLIN Switch", "Left Headphone Mux"}, |
| 327 | {"Left Headphone Mixer", "Left DAC Switch", "Left DAC"}, |
| 328 | |
| 329 | {"Right Headphone Mixer", "RLIN Switch", "Right Headphone Mux"}, |
| 330 | {"Right Headphone Mixer", "Right DAC Switch", "Right DAC"}, |
| 331 | |
| 332 | {"Left Headphone Mixer Out", NULL, "Left Headphone Mixer"}, |
| 333 | {"Right Headphone Mixer Out", NULL, "Right Headphone Mixer"}, |
| 334 | |
| 335 | {"Left Headphone Charge Pump", NULL, "Left Headphone Mixer Out"}, |
| 336 | {"Right Headphone Charge Pump", NULL, "Right Headphone Mixer Out"}, |
| 337 | |
| 338 | {"Left Headphone Charge Pump", NULL, "Headphone Charge Pump"}, |
| 339 | {"Right Headphone Charge Pump", NULL, "Headphone Charge Pump"}, |
| 340 | |
| 341 | {"Left Headphone Charge Pump", NULL, "Headphone Charge Pump Clock"}, |
| 342 | {"Right Headphone Charge Pump", NULL, "Headphone Charge Pump Clock"}, |
| 343 | |
| 344 | {"Left Headphone Driver", NULL, "Left Headphone Charge Pump"}, |
| 345 | {"Right Headphone Driver", NULL, "Right Headphone Charge Pump"}, |
| 346 | |
| 347 | {"HPOL", NULL, "Left Headphone Driver"}, |
| 348 | {"HPOR", NULL, "Right Headphone Driver"}, |
| 349 | |
| 350 | {"HPOL", NULL, "Left Headphone ical"}, |
| 351 | {"HPOR", NULL, "Right Headphone ical"}, |
| 352 | |
| 353 | {"Headphone Out", NULL, "Bias"}, |
| 354 | {"Headphone Out", NULL, "Analog power"}, |
| 355 | {"HPOL", NULL, "Headphone Out"}, |
| 356 | {"HPOR", NULL, "Headphone Out"}, |
| 357 | }; |
| 358 | |
| 359 | static int es8316_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
| 360 | int clk_id, unsigned int freq, int dir) |
| 361 | { |
| 362 | struct snd_soc_codec *codec = codec_dai->codec; |
| 363 | struct es8316_priv *es8316 = snd_soc_codec_get_drvdata(codec); |
| 364 | int i; |
| 365 | int count = 0; |
| 366 | |
| 367 | es8316->sysclk = freq; |
| 368 | |
| 369 | if (freq == 0) |
| 370 | return 0; |
| 371 | |
| 372 | /* Limit supported sample rates to ones that can be autodetected |
| 373 | * by the codec running in slave mode. |
| 374 | */ |
| 375 | for (i = 0; i < NR_SUPPORTED_MCLK_LRCK_RATIOS; i++) { |
| 376 | const unsigned int ratio = supported_mclk_lrck_ratios[i]; |
| 377 | |
| 378 | if (freq % ratio == 0) |
| 379 | es8316->allowed_rates[count++] = freq / ratio; |
| 380 | } |
| 381 | |
| 382 | es8316->sysclk_constraints.list = es8316->allowed_rates; |
| 383 | es8316->sysclk_constraints.count = count; |
| 384 | |
| 385 | return 0; |
| 386 | } |
| 387 | |
| 388 | static int es8316_set_dai_fmt(struct snd_soc_dai *codec_dai, |
| 389 | unsigned int fmt) |
| 390 | { |
| 391 | struct snd_soc_codec *codec = codec_dai->codec; |
| 392 | u8 serdata1 = 0; |
| 393 | u8 serdata2 = 0; |
| 394 | u8 clksw; |
| 395 | u8 mask; |
| 396 | |
| 397 | if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS) { |
| 398 | dev_err(codec->dev, "Codec driver only supports slave mode\n"); |
| 399 | return -EINVAL; |
| 400 | } |
| 401 | |
| 402 | if ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) != SND_SOC_DAIFMT_I2S) { |
| 403 | dev_err(codec->dev, "Codec driver only supports I2S format\n"); |
| 404 | return -EINVAL; |
| 405 | } |
| 406 | |
| 407 | /* Clock inversion */ |
| 408 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
| 409 | case SND_SOC_DAIFMT_NB_NF: |
| 410 | break; |
| 411 | case SND_SOC_DAIFMT_IB_IF: |
| 412 | serdata1 |= ES8316_SERDATA1_BCLK_INV; |
| 413 | serdata2 |= ES8316_SERDATA2_ADCLRP; |
| 414 | break; |
| 415 | case SND_SOC_DAIFMT_IB_NF: |
| 416 | serdata1 |= ES8316_SERDATA1_BCLK_INV; |
| 417 | break; |
| 418 | case SND_SOC_DAIFMT_NB_IF: |
| 419 | serdata2 |= ES8316_SERDATA2_ADCLRP; |
| 420 | break; |
| 421 | default: |
| 422 | return -EINVAL; |
| 423 | } |
| 424 | |
| 425 | mask = ES8316_SERDATA1_MASTER | ES8316_SERDATA1_BCLK_INV; |
| 426 | snd_soc_update_bits(codec, ES8316_SERDATA1, mask, serdata1); |
| 427 | |
| 428 | mask = ES8316_SERDATA2_FMT_MASK | ES8316_SERDATA2_ADCLRP; |
| 429 | snd_soc_update_bits(codec, ES8316_SERDATA_ADC, mask, serdata2); |
| 430 | snd_soc_update_bits(codec, ES8316_SERDATA_DAC, mask, serdata2); |
| 431 | |
| 432 | /* Enable BCLK and MCLK inputs in slave mode */ |
| 433 | clksw = ES8316_CLKMGR_CLKSW_MCLK_ON | ES8316_CLKMGR_CLKSW_BCLK_ON; |
| 434 | snd_soc_update_bits(codec, ES8316_CLKMGR_CLKSW, clksw, clksw); |
| 435 | |
| 436 | return 0; |
| 437 | } |
| 438 | |
| 439 | static int es8316_pcm_startup(struct snd_pcm_substream *substream, |
| 440 | struct snd_soc_dai *dai) |
| 441 | { |
| 442 | struct snd_soc_codec *codec = dai->codec; |
| 443 | struct es8316_priv *es8316 = snd_soc_codec_get_drvdata(codec); |
| 444 | |
| 445 | if (es8316->sysclk == 0) { |
| 446 | dev_err(codec->dev, "No sysclk provided\n"); |
| 447 | return -EINVAL; |
| 448 | } |
| 449 | |
| 450 | /* The set of sample rates that can be supported depends on the |
| 451 | * MCLK supplied to the CODEC. |
| 452 | */ |
| 453 | snd_pcm_hw_constraint_list(substream->runtime, 0, |
| 454 | SNDRV_PCM_HW_PARAM_RATE, |
| 455 | &es8316->sysclk_constraints); |
| 456 | |
| 457 | return 0; |
| 458 | } |
| 459 | |
| 460 | static int es8316_pcm_hw_params(struct snd_pcm_substream *substream, |
| 461 | struct snd_pcm_hw_params *params, |
| 462 | struct snd_soc_dai *dai) |
| 463 | { |
| 464 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 465 | struct snd_soc_codec *codec = rtd->codec; |
| 466 | struct es8316_priv *es8316 = snd_soc_codec_get_drvdata(codec); |
| 467 | u8 wordlen = 0; |
| 468 | |
| 469 | if (!es8316->sysclk) { |
| 470 | dev_err(codec->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_update_bits(codec, ES8316_SERDATA_DAC, |
| 492 | ES8316_SERDATA2_LEN_MASK, wordlen); |
| 493 | snd_soc_update_bits(codec, 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_update_bits(dai->codec, 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 int es8316_probe(struct snd_soc_codec *codec) |
| 537 | { |
| 538 | /* Reset codec and enable current state machine */ |
| 539 | snd_soc_write(codec, ES8316_RESET, 0x3f); |
| 540 | usleep_range(5000, 5500); |
| 541 | snd_soc_write(codec, ES8316_RESET, ES8316_RESET_CSM_ON); |
| 542 | msleep(30); |
| 543 | |
| 544 | /* |
| 545 | * Documentation is unclear, but this value from the vendor driver is |
| 546 | * needed otherwise audio output is silent. |
| 547 | */ |
| 548 | snd_soc_write(codec, ES8316_SYS_VMIDSEL, 0xff); |
| 549 | |
| 550 | /* |
| 551 | * Documentation for this register is unclear and incomplete, |
| 552 | * but here is a vendor-provided value that improves volume |
| 553 | * and quality for Intel CHT platforms. |
| 554 | */ |
| 555 | snd_soc_write(codec, ES8316_CLKMGR_ADCOSR, 0x32); |
| 556 | |
| 557 | return 0; |
| 558 | } |
| 559 | |
| 560 | static const struct snd_soc_codec_driver soc_codec_dev_es8316 = { |
| 561 | .probe = es8316_probe, |
| 562 | .idle_bias_off = true, |
| 563 | |
| 564 | .component_driver = { |
| 565 | .controls = es8316_snd_controls, |
| 566 | .num_controls = ARRAY_SIZE(es8316_snd_controls), |
| 567 | .dapm_widgets = es8316_dapm_widgets, |
| 568 | .num_dapm_widgets = ARRAY_SIZE(es8316_dapm_widgets), |
| 569 | .dapm_routes = es8316_dapm_routes, |
| 570 | .num_dapm_routes = ARRAY_SIZE(es8316_dapm_routes), |
| 571 | }, |
| 572 | }; |
| 573 | |
| 574 | static const struct regmap_config es8316_regmap = { |
| 575 | .reg_bits = 8, |
| 576 | .val_bits = 8, |
| 577 | .max_register = 0x53, |
| 578 | .cache_type = REGCACHE_RBTREE, |
| 579 | }; |
| 580 | |
| 581 | static int es8316_i2c_probe(struct i2c_client *i2c_client, |
| 582 | const struct i2c_device_id *id) |
| 583 | { |
| 584 | struct es8316_priv *es8316; |
| 585 | struct regmap *regmap; |
| 586 | |
| 587 | es8316 = devm_kzalloc(&i2c_client->dev, sizeof(struct es8316_priv), |
| 588 | GFP_KERNEL); |
| 589 | if (es8316 == NULL) |
| 590 | return -ENOMEM; |
| 591 | |
| 592 | i2c_set_clientdata(i2c_client, es8316); |
| 593 | |
| 594 | regmap = devm_regmap_init_i2c(i2c_client, &es8316_regmap); |
| 595 | if (IS_ERR(regmap)) |
| 596 | return PTR_ERR(regmap); |
| 597 | |
| 598 | return snd_soc_register_codec(&i2c_client->dev, &soc_codec_dev_es8316, |
| 599 | &es8316_dai, 1); |
| 600 | } |
| 601 | |
| 602 | static int es8316_i2c_remove(struct i2c_client *client) |
| 603 | { |
| 604 | snd_soc_unregister_codec(&client->dev); |
| 605 | return 0; |
| 606 | } |
| 607 | |
| 608 | static const struct i2c_device_id es8316_i2c_id[] = { |
| 609 | {"es8316", 0 }, |
| 610 | {} |
| 611 | }; |
| 612 | MODULE_DEVICE_TABLE(i2c, es8316_i2c_id); |
| 613 | |
| 614 | static const struct of_device_id es8316_of_match[] = { |
| 615 | { .compatible = "everest,es8316", }, |
| 616 | {}, |
| 617 | }; |
| 618 | MODULE_DEVICE_TABLE(of, es8316_of_match); |
| 619 | |
| 620 | static const struct acpi_device_id es8316_acpi_match[] = { |
| 621 | {"ESSX8316", 0}, |
| 622 | {}, |
| 623 | }; |
| 624 | MODULE_DEVICE_TABLE(acpi, es8316_acpi_match); |
| 625 | |
| 626 | static struct i2c_driver es8316_i2c_driver = { |
| 627 | .driver = { |
| 628 | .name = "es8316", |
| 629 | .acpi_match_table = ACPI_PTR(es8316_acpi_match), |
| 630 | .of_match_table = of_match_ptr(es8316_of_match), |
| 631 | }, |
| 632 | .probe = es8316_i2c_probe, |
| 633 | .remove = es8316_i2c_remove, |
| 634 | .id_table = es8316_i2c_id, |
| 635 | }; |
| 636 | module_i2c_driver(es8316_i2c_driver); |
| 637 | |
| 638 | MODULE_DESCRIPTION("Everest Semi ES8316 ALSA SoC Codec Driver"); |
| 639 | MODULE_AUTHOR("David Yang <yangxiaohua@everest-semi.com>"); |
| 640 | MODULE_LICENSE("GPL v2"); |