1 /* 2 * es8328.c -- ES8328 ALSA SoC Audio driver 3 * 4 * Copyright 2014 Sutajio Ko-Usagi PTE LTD 5 * 6 * Author: Sean Cross <xobs@kosagi.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/clk.h> 14 #include <linux/delay.h> 15 #include <linux/of_device.h> 16 #include <linux/module.h> 17 #include <linux/pm.h> 18 #include <linux/regmap.h> 19 #include <linux/slab.h> 20 #include <linux/regulator/consumer.h> 21 #include <sound/core.h> 22 #include <sound/initval.h> 23 #include <sound/pcm.h> 24 #include <sound/pcm_params.h> 25 #include <sound/soc.h> 26 #include <sound/tlv.h> 27 #include "es8328.h" 28 29 static const unsigned int rates_12288[] = { 30 8000, 12000, 16000, 24000, 32000, 48000, 96000, 31 }; 32 33 static const int ratios_12288[] = { 34 10, 7, 6, 4, 3, 2, 0, 35 }; 36 37 static const struct snd_pcm_hw_constraint_list constraints_12288 = { 38 .count = ARRAY_SIZE(rates_12288), 39 .list = rates_12288, 40 }; 41 42 static const unsigned int rates_11289[] = { 43 8018, 11025, 22050, 44100, 88200, 44 }; 45 46 static const int ratios_11289[] = { 47 9, 7, 4, 2, 0, 48 }; 49 50 static const struct snd_pcm_hw_constraint_list constraints_11289 = { 51 .count = ARRAY_SIZE(rates_11289), 52 .list = rates_11289, 53 }; 54 55 /* regulator supplies for sgtl5000, VDDD is an optional external supply */ 56 enum sgtl5000_regulator_supplies { 57 DVDD, 58 AVDD, 59 PVDD, 60 HPVDD, 61 ES8328_SUPPLY_NUM 62 }; 63 64 /* vddd is optional supply */ 65 static const char * const supply_names[ES8328_SUPPLY_NUM] = { 66 "DVDD", 67 "AVDD", 68 "PVDD", 69 "HPVDD", 70 }; 71 72 #define ES8328_RATES (SNDRV_PCM_RATE_96000 | \ 73 SNDRV_PCM_RATE_48000 | \ 74 SNDRV_PCM_RATE_44100 | \ 75 SNDRV_PCM_RATE_32000 | \ 76 SNDRV_PCM_RATE_22050 | \ 77 SNDRV_PCM_RATE_16000 | \ 78 SNDRV_PCM_RATE_11025 | \ 79 SNDRV_PCM_RATE_8000) 80 #define ES8328_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ 81 SNDRV_PCM_FMTBIT_S18_3LE | \ 82 SNDRV_PCM_FMTBIT_S20_3LE | \ 83 SNDRV_PCM_FMTBIT_S24_LE | \ 84 SNDRV_PCM_FMTBIT_S32_LE) 85 86 struct es8328_priv { 87 struct regmap *regmap; 88 struct clk *clk; 89 int playback_fs; 90 bool deemph; 91 int mclkdiv2; 92 const struct snd_pcm_hw_constraint_list *sysclk_constraints; 93 const int *mclk_ratios; 94 struct regulator_bulk_data supplies[ES8328_SUPPLY_NUM]; 95 }; 96 97 /* 98 * ES8328 Controls 99 */ 100 101 static const char * const adcpol_txt[] = {"Normal", "L Invert", "R Invert", 102 "L + R Invert"}; 103 static SOC_ENUM_SINGLE_DECL(adcpol, 104 ES8328_ADCCONTROL6, 6, adcpol_txt); 105 106 static const DECLARE_TLV_DB_SCALE(play_tlv, -3000, 100, 0); 107 static const DECLARE_TLV_DB_SCALE(dac_adc_tlv, -9600, 50, 0); 108 static const DECLARE_TLV_DB_SCALE(pga_tlv, 0, 300, 0); 109 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0); 110 static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 300, 0); 111 112 static const struct { 113 int rate; 114 unsigned int val; 115 } deemph_settings[] = { 116 { 0, ES8328_DACCONTROL6_DEEMPH_OFF }, 117 { 32000, ES8328_DACCONTROL6_DEEMPH_32k }, 118 { 44100, ES8328_DACCONTROL6_DEEMPH_44_1k }, 119 { 48000, ES8328_DACCONTROL6_DEEMPH_48k }, 120 }; 121 122 static int es8328_set_deemph(struct snd_soc_codec *codec) 123 { 124 struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec); 125 int val, i, best; 126 127 /* 128 * If we're using deemphasis select the nearest available sample 129 * rate. 130 */ 131 if (es8328->deemph) { 132 best = 0; 133 for (i = 1; i < ARRAY_SIZE(deemph_settings); i++) { 134 if (abs(deemph_settings[i].rate - es8328->playback_fs) < 135 abs(deemph_settings[best].rate - es8328->playback_fs)) 136 best = i; 137 } 138 139 val = deemph_settings[best].val; 140 } else { 141 val = ES8328_DACCONTROL6_DEEMPH_OFF; 142 } 143 144 dev_dbg(codec->dev, "Set deemphasis %d\n", val); 145 146 return snd_soc_update_bits(codec, ES8328_DACCONTROL6, 147 ES8328_DACCONTROL6_DEEMPH_MASK, val); 148 } 149 150 static int es8328_get_deemph(struct snd_kcontrol *kcontrol, 151 struct snd_ctl_elem_value *ucontrol) 152 { 153 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); 154 struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec); 155 156 ucontrol->value.integer.value[0] = es8328->deemph; 157 return 0; 158 } 159 160 static int es8328_put_deemph(struct snd_kcontrol *kcontrol, 161 struct snd_ctl_elem_value *ucontrol) 162 { 163 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); 164 struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec); 165 unsigned int deemph = ucontrol->value.integer.value[0]; 166 int ret; 167 168 if (deemph > 1) 169 return -EINVAL; 170 171 ret = es8328_set_deemph(codec); 172 if (ret < 0) 173 return ret; 174 175 es8328->deemph = deemph; 176 177 return 0; 178 } 179 180 181 182 static const struct snd_kcontrol_new es8328_snd_controls[] = { 183 SOC_DOUBLE_R_TLV("Capture Digital Volume", 184 ES8328_ADCCONTROL8, ES8328_ADCCONTROL9, 185 0, 0xc0, 1, dac_adc_tlv), 186 SOC_SINGLE("Capture ZC Switch", ES8328_ADCCONTROL7, 6, 1, 0), 187 188 SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0, 189 es8328_get_deemph, es8328_put_deemph), 190 191 SOC_ENUM("Capture Polarity", adcpol), 192 193 SOC_SINGLE_TLV("Left Mixer Left Bypass Volume", 194 ES8328_DACCONTROL17, 3, 7, 1, bypass_tlv), 195 SOC_SINGLE_TLV("Left Mixer Right Bypass Volume", 196 ES8328_DACCONTROL19, 3, 7, 1, bypass_tlv), 197 SOC_SINGLE_TLV("Right Mixer Left Bypass Volume", 198 ES8328_DACCONTROL18, 3, 7, 1, bypass_tlv), 199 SOC_SINGLE_TLV("Right Mixer Right Bypass Volume", 200 ES8328_DACCONTROL20, 3, 7, 1, bypass_tlv), 201 202 SOC_DOUBLE_R_TLV("PCM Volume", 203 ES8328_LDACVOL, ES8328_RDACVOL, 204 0, ES8328_DACVOL_MAX, 1, dac_adc_tlv), 205 206 SOC_DOUBLE_R_TLV("Output 1 Playback Volume", 207 ES8328_LOUT1VOL, ES8328_ROUT1VOL, 208 0, ES8328_OUT1VOL_MAX, 0, play_tlv), 209 210 SOC_DOUBLE_R_TLV("Output 2 Playback Volume", 211 ES8328_LOUT2VOL, ES8328_ROUT2VOL, 212 0, ES8328_OUT2VOL_MAX, 0, play_tlv), 213 214 SOC_DOUBLE_TLV("Mic PGA Volume", ES8328_ADCCONTROL1, 215 4, 0, 8, 0, mic_tlv), 216 }; 217 218 /* 219 * DAPM Controls 220 */ 221 222 static const char * const es8328_line_texts[] = { 223 "Line 1", "Line 2", "PGA", "Differential"}; 224 225 static const struct soc_enum es8328_lline_enum = 226 SOC_ENUM_SINGLE(ES8328_DACCONTROL16, 3, 227 ARRAY_SIZE(es8328_line_texts), 228 es8328_line_texts); 229 static const struct snd_kcontrol_new es8328_left_line_controls = 230 SOC_DAPM_ENUM("Route", es8328_lline_enum); 231 232 static const struct soc_enum es8328_rline_enum = 233 SOC_ENUM_SINGLE(ES8328_DACCONTROL16, 0, 234 ARRAY_SIZE(es8328_line_texts), 235 es8328_line_texts); 236 static const struct snd_kcontrol_new es8328_right_line_controls = 237 SOC_DAPM_ENUM("Route", es8328_lline_enum); 238 239 /* Left Mixer */ 240 static const struct snd_kcontrol_new es8328_left_mixer_controls[] = { 241 SOC_DAPM_SINGLE("Playback Switch", ES8328_DACCONTROL17, 7, 1, 0), 242 SOC_DAPM_SINGLE("Left Bypass Switch", ES8328_DACCONTROL17, 6, 1, 0), 243 SOC_DAPM_SINGLE("Right Playback Switch", ES8328_DACCONTROL18, 7, 1, 0), 244 SOC_DAPM_SINGLE("Right Bypass Switch", ES8328_DACCONTROL18, 6, 1, 0), 245 }; 246 247 /* Right Mixer */ 248 static const struct snd_kcontrol_new es8328_right_mixer_controls[] = { 249 SOC_DAPM_SINGLE("Left Playback Switch", ES8328_DACCONTROL19, 7, 1, 0), 250 SOC_DAPM_SINGLE("Left Bypass Switch", ES8328_DACCONTROL19, 6, 1, 0), 251 SOC_DAPM_SINGLE("Playback Switch", ES8328_DACCONTROL20, 7, 1, 0), 252 SOC_DAPM_SINGLE("Right Bypass Switch", ES8328_DACCONTROL20, 6, 1, 0), 253 }; 254 255 static const char * const es8328_pga_sel[] = { 256 "Line 1", "Line 2", "Line 3", "Differential"}; 257 258 /* Left PGA Mux */ 259 static const struct soc_enum es8328_lpga_enum = 260 SOC_ENUM_SINGLE(ES8328_ADCCONTROL2, 6, 261 ARRAY_SIZE(es8328_pga_sel), 262 es8328_pga_sel); 263 static const struct snd_kcontrol_new es8328_left_pga_controls = 264 SOC_DAPM_ENUM("Route", es8328_lpga_enum); 265 266 /* Right PGA Mux */ 267 static const struct soc_enum es8328_rpga_enum = 268 SOC_ENUM_SINGLE(ES8328_ADCCONTROL2, 4, 269 ARRAY_SIZE(es8328_pga_sel), 270 es8328_pga_sel); 271 static const struct snd_kcontrol_new es8328_right_pga_controls = 272 SOC_DAPM_ENUM("Route", es8328_rpga_enum); 273 274 /* Differential Mux */ 275 static const char * const es8328_diff_sel[] = {"Line 1", "Line 2"}; 276 static SOC_ENUM_SINGLE_DECL(diffmux, 277 ES8328_ADCCONTROL3, 7, es8328_diff_sel); 278 static const struct snd_kcontrol_new es8328_diffmux_controls = 279 SOC_DAPM_ENUM("Route", diffmux); 280 281 /* Mono ADC Mux */ 282 static const char * const es8328_mono_mux[] = {"Stereo", "Mono (Left)", 283 "Mono (Right)", "Digital Mono"}; 284 static SOC_ENUM_SINGLE_DECL(monomux, 285 ES8328_ADCCONTROL3, 3, es8328_mono_mux); 286 static const struct snd_kcontrol_new es8328_monomux_controls = 287 SOC_DAPM_ENUM("Route", monomux); 288 289 static const struct snd_soc_dapm_widget es8328_dapm_widgets[] = { 290 SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0, 291 &es8328_diffmux_controls), 292 SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0, 293 &es8328_monomux_controls), 294 SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0, 295 &es8328_monomux_controls), 296 297 SND_SOC_DAPM_MUX("Left PGA Mux", ES8328_ADCPOWER, 298 ES8328_ADCPOWER_AINL_OFF, 1, 299 &es8328_left_pga_controls), 300 SND_SOC_DAPM_MUX("Right PGA Mux", ES8328_ADCPOWER, 301 ES8328_ADCPOWER_AINR_OFF, 1, 302 &es8328_right_pga_controls), 303 304 SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0, 305 &es8328_left_line_controls), 306 SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0, 307 &es8328_right_line_controls), 308 309 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", ES8328_ADCPOWER, 310 ES8328_ADCPOWER_ADCR_OFF, 1), 311 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", ES8328_ADCPOWER, 312 ES8328_ADCPOWER_ADCL_OFF, 1), 313 314 SND_SOC_DAPM_SUPPLY("Mic Bias", ES8328_ADCPOWER, 315 ES8328_ADCPOWER_MIC_BIAS_OFF, 1, NULL, 0), 316 SND_SOC_DAPM_SUPPLY("Mic Bias Gen", ES8328_ADCPOWER, 317 ES8328_ADCPOWER_ADC_BIAS_GEN_OFF, 1, NULL, 0), 318 319 SND_SOC_DAPM_SUPPLY("DAC STM", ES8328_CHIPPOWER, 320 ES8328_CHIPPOWER_DACSTM_RESET, 1, NULL, 0), 321 SND_SOC_DAPM_SUPPLY("ADC STM", ES8328_CHIPPOWER, 322 ES8328_CHIPPOWER_ADCSTM_RESET, 1, NULL, 0), 323 324 SND_SOC_DAPM_SUPPLY("DAC DIG", ES8328_CHIPPOWER, 325 ES8328_CHIPPOWER_DACDIG_OFF, 1, NULL, 0), 326 SND_SOC_DAPM_SUPPLY("ADC DIG", ES8328_CHIPPOWER, 327 ES8328_CHIPPOWER_ADCDIG_OFF, 1, NULL, 0), 328 329 SND_SOC_DAPM_SUPPLY("DAC DLL", ES8328_CHIPPOWER, 330 ES8328_CHIPPOWER_DACDLL_OFF, 1, NULL, 0), 331 SND_SOC_DAPM_SUPPLY("ADC DLL", ES8328_CHIPPOWER, 332 ES8328_CHIPPOWER_ADCDLL_OFF, 1, NULL, 0), 333 334 SND_SOC_DAPM_SUPPLY("ADC Vref", ES8328_CHIPPOWER, 335 ES8328_CHIPPOWER_ADCVREF_OFF, 1, NULL, 0), 336 SND_SOC_DAPM_SUPPLY("DAC Vref", ES8328_CHIPPOWER, 337 ES8328_CHIPPOWER_DACVREF_OFF, 1, NULL, 0), 338 339 SND_SOC_DAPM_DAC("Right DAC", "Right Playback", ES8328_DACPOWER, 340 ES8328_DACPOWER_RDAC_OFF, 1), 341 SND_SOC_DAPM_DAC("Left DAC", "Left Playback", ES8328_DACPOWER, 342 ES8328_DACPOWER_LDAC_OFF, 1), 343 344 SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0, 345 &es8328_left_mixer_controls[0], 346 ARRAY_SIZE(es8328_left_mixer_controls)), 347 SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0, 348 &es8328_right_mixer_controls[0], 349 ARRAY_SIZE(es8328_right_mixer_controls)), 350 351 SND_SOC_DAPM_PGA("Right Out 2", ES8328_DACPOWER, 352 ES8328_DACPOWER_ROUT2_ON, 0, NULL, 0), 353 SND_SOC_DAPM_PGA("Left Out 2", ES8328_DACPOWER, 354 ES8328_DACPOWER_LOUT2_ON, 0, NULL, 0), 355 SND_SOC_DAPM_PGA("Right Out 1", ES8328_DACPOWER, 356 ES8328_DACPOWER_ROUT1_ON, 0, NULL, 0), 357 SND_SOC_DAPM_PGA("Left Out 1", ES8328_DACPOWER, 358 ES8328_DACPOWER_LOUT1_ON, 0, NULL, 0), 359 360 SND_SOC_DAPM_OUTPUT("LOUT1"), 361 SND_SOC_DAPM_OUTPUT("ROUT1"), 362 SND_SOC_DAPM_OUTPUT("LOUT2"), 363 SND_SOC_DAPM_OUTPUT("ROUT2"), 364 365 SND_SOC_DAPM_INPUT("LINPUT1"), 366 SND_SOC_DAPM_INPUT("LINPUT2"), 367 SND_SOC_DAPM_INPUT("RINPUT1"), 368 SND_SOC_DAPM_INPUT("RINPUT2"), 369 }; 370 371 static const struct snd_soc_dapm_route es8328_dapm_routes[] = { 372 373 { "Left Line Mux", "Line 1", "LINPUT1" }, 374 { "Left Line Mux", "Line 2", "LINPUT2" }, 375 { "Left Line Mux", "PGA", "Left PGA Mux" }, 376 { "Left Line Mux", "Differential", "Differential Mux" }, 377 378 { "Right Line Mux", "Line 1", "RINPUT1" }, 379 { "Right Line Mux", "Line 2", "RINPUT2" }, 380 { "Right Line Mux", "PGA", "Right PGA Mux" }, 381 { "Right Line Mux", "Differential", "Differential Mux" }, 382 383 { "Left PGA Mux", "Line 1", "LINPUT1" }, 384 { "Left PGA Mux", "Line 2", "LINPUT2" }, 385 { "Left PGA Mux", "Differential", "Differential Mux" }, 386 387 { "Right PGA Mux", "Line 1", "RINPUT1" }, 388 { "Right PGA Mux", "Line 2", "RINPUT2" }, 389 { "Right PGA Mux", "Differential", "Differential Mux" }, 390 391 { "Differential Mux", "Line 1", "LINPUT1" }, 392 { "Differential Mux", "Line 1", "RINPUT1" }, 393 { "Differential Mux", "Line 2", "LINPUT2" }, 394 { "Differential Mux", "Line 2", "RINPUT2" }, 395 396 { "Left ADC Mux", "Stereo", "Left PGA Mux" }, 397 { "Left ADC Mux", "Mono (Left)", "Left PGA Mux" }, 398 { "Left ADC Mux", "Digital Mono", "Left PGA Mux" }, 399 400 { "Right ADC Mux", "Stereo", "Right PGA Mux" }, 401 { "Right ADC Mux", "Mono (Right)", "Right PGA Mux" }, 402 { "Right ADC Mux", "Digital Mono", "Right PGA Mux" }, 403 404 { "Left ADC", NULL, "Left ADC Mux" }, 405 { "Right ADC", NULL, "Right ADC Mux" }, 406 407 { "ADC DIG", NULL, "ADC STM" }, 408 { "ADC DIG", NULL, "ADC Vref" }, 409 { "ADC DIG", NULL, "ADC DLL" }, 410 411 { "Left ADC", NULL, "ADC DIG" }, 412 { "Right ADC", NULL, "ADC DIG" }, 413 414 { "Mic Bias", NULL, "Mic Bias Gen" }, 415 416 { "Left Line Mux", "Line 1", "LINPUT1" }, 417 { "Left Line Mux", "Line 2", "LINPUT2" }, 418 { "Left Line Mux", "PGA", "Left PGA Mux" }, 419 { "Left Line Mux", "Differential", "Differential Mux" }, 420 421 { "Right Line Mux", "Line 1", "RINPUT1" }, 422 { "Right Line Mux", "Line 2", "RINPUT2" }, 423 { "Right Line Mux", "PGA", "Right PGA Mux" }, 424 { "Right Line Mux", "Differential", "Differential Mux" }, 425 426 { "Left Out 1", NULL, "Left DAC" }, 427 { "Right Out 1", NULL, "Right DAC" }, 428 { "Left Out 2", NULL, "Left DAC" }, 429 { "Right Out 2", NULL, "Right DAC" }, 430 431 { "Left Mixer", "Playback Switch", "Left DAC" }, 432 { "Left Mixer", "Left Bypass Switch", "Left Line Mux" }, 433 { "Left Mixer", "Right Playback Switch", "Right DAC" }, 434 { "Left Mixer", "Right Bypass Switch", "Right Line Mux" }, 435 436 { "Right Mixer", "Left Playback Switch", "Left DAC" }, 437 { "Right Mixer", "Left Bypass Switch", "Left Line Mux" }, 438 { "Right Mixer", "Playback Switch", "Right DAC" }, 439 { "Right Mixer", "Right Bypass Switch", "Right Line Mux" }, 440 441 { "DAC DIG", NULL, "DAC STM" }, 442 { "DAC DIG", NULL, "DAC Vref" }, 443 { "DAC DIG", NULL, "DAC DLL" }, 444 445 { "Left DAC", NULL, "DAC DIG" }, 446 { "Right DAC", NULL, "DAC DIG" }, 447 448 { "Left Out 1", NULL, "Left Mixer" }, 449 { "LOUT1", NULL, "Left Out 1" }, 450 { "Right Out 1", NULL, "Right Mixer" }, 451 { "ROUT1", NULL, "Right Out 1" }, 452 453 { "Left Out 2", NULL, "Left Mixer" }, 454 { "LOUT2", NULL, "Left Out 2" }, 455 { "Right Out 2", NULL, "Right Mixer" }, 456 { "ROUT2", NULL, "Right Out 2" }, 457 }; 458 459 static int es8328_mute(struct snd_soc_dai *dai, int mute) 460 { 461 return snd_soc_update_bits(dai->codec, ES8328_DACCONTROL3, 462 ES8328_DACCONTROL3_DACMUTE, 463 mute ? ES8328_DACCONTROL3_DACMUTE : 0); 464 } 465 466 static int es8328_startup(struct snd_pcm_substream *substream, 467 struct snd_soc_dai *dai) 468 { 469 struct snd_soc_codec *codec = dai->codec; 470 struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec); 471 472 if (es8328->sysclk_constraints) 473 snd_pcm_hw_constraint_list(substream->runtime, 0, 474 SNDRV_PCM_HW_PARAM_RATE, 475 es8328->sysclk_constraints); 476 477 return 0; 478 } 479 480 static int es8328_hw_params(struct snd_pcm_substream *substream, 481 struct snd_pcm_hw_params *params, 482 struct snd_soc_dai *dai) 483 { 484 struct snd_soc_codec *codec = dai->codec; 485 struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec); 486 int i; 487 int reg; 488 int wl; 489 int ratio; 490 491 if (!es8328->sysclk_constraints) { 492 dev_err(codec->dev, "No MCLK configured\n"); 493 return -EINVAL; 494 } 495 496 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 497 reg = ES8328_DACCONTROL2; 498 else 499 reg = ES8328_ADCCONTROL5; 500 501 for (i = 0; i < es8328->sysclk_constraints->count; i++) 502 if (es8328->sysclk_constraints->list[i] == params_rate(params)) 503 break; 504 505 if (i == es8328->sysclk_constraints->count) { 506 dev_err(codec->dev, "LRCLK %d unsupported with current clock\n", 507 params_rate(params)); 508 return -EINVAL; 509 } 510 511 ratio = es8328->mclk_ratios[i]; 512 snd_soc_update_bits(codec, ES8328_MASTERMODE, 513 ES8328_MASTERMODE_MCLKDIV2, 514 es8328->mclkdiv2 ? ES8328_MASTERMODE_MCLKDIV2 : 0); 515 516 switch (params_width(params)) { 517 case 16: 518 wl = 3; 519 break; 520 case 18: 521 wl = 2; 522 break; 523 case 20: 524 wl = 1; 525 break; 526 case 24: 527 wl = 0; 528 break; 529 case 32: 530 wl = 4; 531 break; 532 default: 533 return -EINVAL; 534 } 535 536 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 537 snd_soc_update_bits(codec, ES8328_DACCONTROL1, 538 ES8328_DACCONTROL1_DACWL_MASK, 539 wl << ES8328_DACCONTROL1_DACWL_SHIFT); 540 541 es8328->playback_fs = params_rate(params); 542 es8328_set_deemph(codec); 543 } else 544 snd_soc_update_bits(codec, ES8328_ADCCONTROL4, 545 ES8328_ADCCONTROL4_ADCWL_MASK, 546 wl << ES8328_ADCCONTROL4_ADCWL_SHIFT); 547 548 return snd_soc_update_bits(codec, reg, ES8328_RATEMASK, ratio); 549 } 550 551 static int es8328_set_sysclk(struct snd_soc_dai *codec_dai, 552 int clk_id, unsigned int freq, int dir) 553 { 554 struct snd_soc_codec *codec = codec_dai->codec; 555 struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec); 556 int mclkdiv2 = 0; 557 558 switch (freq) { 559 case 0: 560 es8328->sysclk_constraints = NULL; 561 es8328->mclk_ratios = NULL; 562 break; 563 case 22579200: 564 mclkdiv2 = 1; 565 /* fallthru */ 566 case 11289600: 567 es8328->sysclk_constraints = &constraints_11289; 568 es8328->mclk_ratios = ratios_11289; 569 break; 570 case 24576000: 571 mclkdiv2 = 1; 572 /* fallthru */ 573 case 12288000: 574 es8328->sysclk_constraints = &constraints_12288; 575 es8328->mclk_ratios = ratios_12288; 576 break; 577 default: 578 return -EINVAL; 579 } 580 581 es8328->mclkdiv2 = mclkdiv2; 582 return 0; 583 } 584 585 static int es8328_set_dai_fmt(struct snd_soc_dai *codec_dai, 586 unsigned int fmt) 587 { 588 struct snd_soc_codec *codec = codec_dai->codec; 589 u8 dac_mode = 0; 590 u8 adc_mode = 0; 591 592 /* set master/slave audio interface */ 593 if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBM_CFM) 594 return -EINVAL; 595 596 /* interface format */ 597 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 598 case SND_SOC_DAIFMT_I2S: 599 dac_mode |= ES8328_DACCONTROL1_DACFORMAT_I2S; 600 adc_mode |= ES8328_ADCCONTROL4_ADCFORMAT_I2S; 601 break; 602 case SND_SOC_DAIFMT_RIGHT_J: 603 dac_mode |= ES8328_DACCONTROL1_DACFORMAT_RJUST; 604 adc_mode |= ES8328_ADCCONTROL4_ADCFORMAT_RJUST; 605 break; 606 case SND_SOC_DAIFMT_LEFT_J: 607 dac_mode |= ES8328_DACCONTROL1_DACFORMAT_LJUST; 608 adc_mode |= ES8328_ADCCONTROL4_ADCFORMAT_LJUST; 609 break; 610 default: 611 return -EINVAL; 612 } 613 614 /* clock inversion */ 615 if ((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_NF) 616 return -EINVAL; 617 618 snd_soc_update_bits(codec, ES8328_DACCONTROL1, 619 ES8328_DACCONTROL1_DACFORMAT_MASK, dac_mode); 620 snd_soc_update_bits(codec, ES8328_ADCCONTROL4, 621 ES8328_ADCCONTROL4_ADCFORMAT_MASK, adc_mode); 622 623 /* Master serial port mode, with BCLK generated automatically */ 624 snd_soc_update_bits(codec, ES8328_MASTERMODE, 625 ES8328_MASTERMODE_MSC, ES8328_MASTERMODE_MSC); 626 627 return 0; 628 } 629 630 static int es8328_set_bias_level(struct snd_soc_codec *codec, 631 enum snd_soc_bias_level level) 632 { 633 switch (level) { 634 case SND_SOC_BIAS_ON: 635 break; 636 637 case SND_SOC_BIAS_PREPARE: 638 /* VREF, VMID=2x50k, digital enabled */ 639 snd_soc_write(codec, ES8328_CHIPPOWER, 0); 640 snd_soc_update_bits(codec, ES8328_CONTROL1, 641 ES8328_CONTROL1_VMIDSEL_MASK | 642 ES8328_CONTROL1_ENREF, 643 ES8328_CONTROL1_VMIDSEL_50k | 644 ES8328_CONTROL1_ENREF); 645 break; 646 647 case SND_SOC_BIAS_STANDBY: 648 if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) { 649 snd_soc_update_bits(codec, ES8328_CONTROL1, 650 ES8328_CONTROL1_VMIDSEL_MASK | 651 ES8328_CONTROL1_ENREF, 652 ES8328_CONTROL1_VMIDSEL_5k | 653 ES8328_CONTROL1_ENREF); 654 655 /* Charge caps */ 656 msleep(100); 657 } 658 659 snd_soc_write(codec, ES8328_CONTROL2, 660 ES8328_CONTROL2_OVERCURRENT_ON | 661 ES8328_CONTROL2_THERMAL_SHUTDOWN_ON); 662 663 /* VREF, VMID=2*500k, digital stopped */ 664 snd_soc_update_bits(codec, ES8328_CONTROL1, 665 ES8328_CONTROL1_VMIDSEL_MASK | 666 ES8328_CONTROL1_ENREF, 667 ES8328_CONTROL1_VMIDSEL_500k | 668 ES8328_CONTROL1_ENREF); 669 break; 670 671 case SND_SOC_BIAS_OFF: 672 snd_soc_update_bits(codec, ES8328_CONTROL1, 673 ES8328_CONTROL1_VMIDSEL_MASK | 674 ES8328_CONTROL1_ENREF, 675 0); 676 break; 677 } 678 return 0; 679 } 680 681 static const struct snd_soc_dai_ops es8328_dai_ops = { 682 .startup = es8328_startup, 683 .hw_params = es8328_hw_params, 684 .digital_mute = es8328_mute, 685 .set_sysclk = es8328_set_sysclk, 686 .set_fmt = es8328_set_dai_fmt, 687 }; 688 689 static struct snd_soc_dai_driver es8328_dai = { 690 .name = "es8328-hifi-analog", 691 .playback = { 692 .stream_name = "Playback", 693 .channels_min = 2, 694 .channels_max = 2, 695 .rates = ES8328_RATES, 696 .formats = ES8328_FORMATS, 697 }, 698 .capture = { 699 .stream_name = "Capture", 700 .channels_min = 2, 701 .channels_max = 2, 702 .rates = ES8328_RATES, 703 .formats = ES8328_FORMATS, 704 }, 705 .ops = &es8328_dai_ops, 706 .symmetric_rates = 1, 707 }; 708 709 static int es8328_suspend(struct snd_soc_codec *codec) 710 { 711 struct es8328_priv *es8328; 712 int ret; 713 714 es8328 = snd_soc_codec_get_drvdata(codec); 715 716 clk_disable_unprepare(es8328->clk); 717 718 ret = regulator_bulk_disable(ARRAY_SIZE(es8328->supplies), 719 es8328->supplies); 720 if (ret) { 721 dev_err(codec->dev, "unable to disable regulators\n"); 722 return ret; 723 } 724 return 0; 725 } 726 727 static int es8328_resume(struct snd_soc_codec *codec) 728 { 729 struct regmap *regmap = dev_get_regmap(codec->dev, NULL); 730 struct es8328_priv *es8328; 731 int ret; 732 733 es8328 = snd_soc_codec_get_drvdata(codec); 734 735 ret = clk_prepare_enable(es8328->clk); 736 if (ret) { 737 dev_err(codec->dev, "unable to enable clock\n"); 738 return ret; 739 } 740 741 ret = regulator_bulk_enable(ARRAY_SIZE(es8328->supplies), 742 es8328->supplies); 743 if (ret) { 744 dev_err(codec->dev, "unable to enable regulators\n"); 745 return ret; 746 } 747 748 regcache_mark_dirty(regmap); 749 ret = regcache_sync(regmap); 750 if (ret) { 751 dev_err(codec->dev, "unable to sync regcache\n"); 752 return ret; 753 } 754 755 return 0; 756 } 757 758 static int es8328_codec_probe(struct snd_soc_codec *codec) 759 { 760 struct es8328_priv *es8328; 761 int ret; 762 763 es8328 = snd_soc_codec_get_drvdata(codec); 764 765 ret = regulator_bulk_enable(ARRAY_SIZE(es8328->supplies), 766 es8328->supplies); 767 if (ret) { 768 dev_err(codec->dev, "unable to enable regulators\n"); 769 return ret; 770 } 771 772 /* Setup clocks */ 773 es8328->clk = devm_clk_get(codec->dev, NULL); 774 if (IS_ERR(es8328->clk)) { 775 dev_err(codec->dev, "codec clock missing or invalid\n"); 776 ret = PTR_ERR(es8328->clk); 777 goto clk_fail; 778 } 779 780 ret = clk_prepare_enable(es8328->clk); 781 if (ret) { 782 dev_err(codec->dev, "unable to prepare codec clk\n"); 783 goto clk_fail; 784 } 785 786 return 0; 787 788 clk_fail: 789 regulator_bulk_disable(ARRAY_SIZE(es8328->supplies), 790 es8328->supplies); 791 return ret; 792 } 793 794 static int es8328_remove(struct snd_soc_codec *codec) 795 { 796 struct es8328_priv *es8328; 797 798 es8328 = snd_soc_codec_get_drvdata(codec); 799 800 if (es8328->clk) 801 clk_disable_unprepare(es8328->clk); 802 803 regulator_bulk_disable(ARRAY_SIZE(es8328->supplies), 804 es8328->supplies); 805 806 return 0; 807 } 808 809 const struct regmap_config es8328_regmap_config = { 810 .reg_bits = 8, 811 .val_bits = 8, 812 .max_register = ES8328_REG_MAX, 813 .cache_type = REGCACHE_RBTREE, 814 .use_single_rw = true, 815 }; 816 EXPORT_SYMBOL_GPL(es8328_regmap_config); 817 818 static struct snd_soc_codec_driver es8328_codec_driver = { 819 .probe = es8328_codec_probe, 820 .suspend = es8328_suspend, 821 .resume = es8328_resume, 822 .remove = es8328_remove, 823 .set_bias_level = es8328_set_bias_level, 824 .suspend_bias_off = true, 825 826 .controls = es8328_snd_controls, 827 .num_controls = ARRAY_SIZE(es8328_snd_controls), 828 .dapm_widgets = es8328_dapm_widgets, 829 .num_dapm_widgets = ARRAY_SIZE(es8328_dapm_widgets), 830 .dapm_routes = es8328_dapm_routes, 831 .num_dapm_routes = ARRAY_SIZE(es8328_dapm_routes), 832 }; 833 834 int es8328_probe(struct device *dev, struct regmap *regmap) 835 { 836 struct es8328_priv *es8328; 837 int ret; 838 int i; 839 840 if (IS_ERR(regmap)) 841 return PTR_ERR(regmap); 842 843 es8328 = devm_kzalloc(dev, sizeof(*es8328), GFP_KERNEL); 844 if (es8328 == NULL) 845 return -ENOMEM; 846 847 es8328->regmap = regmap; 848 849 for (i = 0; i < ARRAY_SIZE(es8328->supplies); i++) 850 es8328->supplies[i].supply = supply_names[i]; 851 852 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(es8328->supplies), 853 es8328->supplies); 854 if (ret) { 855 dev_err(dev, "unable to get regulators\n"); 856 return ret; 857 } 858 859 dev_set_drvdata(dev, es8328); 860 861 return snd_soc_register_codec(dev, 862 &es8328_codec_driver, &es8328_dai, 1); 863 } 864 EXPORT_SYMBOL_GPL(es8328_probe); 865 866 MODULE_DESCRIPTION("ASoC ES8328 driver"); 867 MODULE_AUTHOR("Sean Cross <xobs@kosagi.com>"); 868 MODULE_LICENSE("GPL"); 869