1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * nau8810.c -- NAU8810 ALSA Soc Audio driver 4 * 5 * Copyright 2016 Nuvoton Technology Corp. 6 * 7 * Author: David Lin <ctlin0@nuvoton.com> 8 * 9 * Based on WM8974.c 10 */ 11 12 #include <linux/module.h> 13 #include <linux/moduleparam.h> 14 #include <linux/kernel.h> 15 #include <linux/init.h> 16 #include <linux/delay.h> 17 #include <linux/pm.h> 18 #include <linux/i2c.h> 19 #include <linux/regmap.h> 20 #include <linux/slab.h> 21 #include <sound/core.h> 22 #include <sound/pcm.h> 23 #include <sound/pcm_params.h> 24 #include <sound/soc.h> 25 #include <sound/initval.h> 26 #include <sound/tlv.h> 27 28 #include "nau8810.h" 29 30 #define NAU_PLL_FREQ_MAX 100000000 31 #define NAU_PLL_FREQ_MIN 90000000 32 #define NAU_PLL_REF_MAX 33000000 33 #define NAU_PLL_REF_MIN 8000000 34 #define NAU_PLL_OPTOP_MIN 6 35 36 37 static const int nau8810_mclk_scaler[] = { 10, 15, 20, 30, 40, 60, 80, 120 }; 38 39 static const struct reg_default nau8810_reg_defaults[] = { 40 { NAU8810_REG_POWER1, 0x0000 }, 41 { NAU8810_REG_POWER2, 0x0000 }, 42 { NAU8810_REG_POWER3, 0x0000 }, 43 { NAU8810_REG_IFACE, 0x0050 }, 44 { NAU8810_REG_COMP, 0x0000 }, 45 { NAU8810_REG_CLOCK, 0x0140 }, 46 { NAU8810_REG_SMPLR, 0x0000 }, 47 { NAU8810_REG_DAC, 0x0000 }, 48 { NAU8810_REG_DACGAIN, 0x00FF }, 49 { NAU8810_REG_ADC, 0x0100 }, 50 { NAU8810_REG_ADCGAIN, 0x00FF }, 51 { NAU8810_REG_EQ1, 0x012C }, 52 { NAU8810_REG_EQ2, 0x002C }, 53 { NAU8810_REG_EQ3, 0x002C }, 54 { NAU8810_REG_EQ4, 0x002C }, 55 { NAU8810_REG_EQ5, 0x002C }, 56 { NAU8810_REG_DACLIM1, 0x0032 }, 57 { NAU8810_REG_DACLIM2, 0x0000 }, 58 { NAU8810_REG_NOTCH1, 0x0000 }, 59 { NAU8810_REG_NOTCH2, 0x0000 }, 60 { NAU8810_REG_NOTCH3, 0x0000 }, 61 { NAU8810_REG_NOTCH4, 0x0000 }, 62 { NAU8810_REG_ALC1, 0x0038 }, 63 { NAU8810_REG_ALC2, 0x000B }, 64 { NAU8810_REG_ALC3, 0x0032 }, 65 { NAU8810_REG_NOISEGATE, 0x0000 }, 66 { NAU8810_REG_PLLN, 0x0008 }, 67 { NAU8810_REG_PLLK1, 0x000C }, 68 { NAU8810_REG_PLLK2, 0x0093 }, 69 { NAU8810_REG_PLLK3, 0x00E9 }, 70 { NAU8810_REG_ATTEN, 0x0000 }, 71 { NAU8810_REG_INPUT_SIGNAL, 0x0003 }, 72 { NAU8810_REG_PGAGAIN, 0x0010 }, 73 { NAU8810_REG_ADCBOOST, 0x0100 }, 74 { NAU8810_REG_OUTPUT, 0x0002 }, 75 { NAU8810_REG_SPKMIX, 0x0001 }, 76 { NAU8810_REG_SPKGAIN, 0x0039 }, 77 { NAU8810_REG_MONOMIX, 0x0001 }, 78 { NAU8810_REG_POWER4, 0x0000 }, 79 { NAU8810_REG_TSLOTCTL1, 0x0000 }, 80 { NAU8810_REG_TSLOTCTL2, 0x0020 }, 81 { NAU8810_REG_DEVICE_REVID, 0x0000 }, 82 { NAU8810_REG_I2C_DEVICEID, 0x001A }, 83 { NAU8810_REG_ADDITIONID, 0x00CA }, 84 { NAU8810_REG_RESERVE, 0x0124 }, 85 { NAU8810_REG_OUTCTL, 0x0001 }, 86 { NAU8810_REG_ALC1ENHAN1, 0x0010 }, 87 { NAU8810_REG_ALC1ENHAN2, 0x0000 }, 88 { NAU8810_REG_MISCCTL, 0x0000 }, 89 { NAU8810_REG_OUTTIEOFF, 0x0000 }, 90 { NAU8810_REG_AGCP2POUT, 0x0000 }, 91 { NAU8810_REG_AGCPOUT, 0x0000 }, 92 { NAU8810_REG_AMTCTL, 0x0000 }, 93 { NAU8810_REG_OUTTIEOFFMAN, 0x0000 }, 94 }; 95 96 static bool nau8810_readable_reg(struct device *dev, unsigned int reg) 97 { 98 switch (reg) { 99 case NAU8810_REG_RESET ... NAU8810_REG_SMPLR: 100 case NAU8810_REG_DAC ... NAU8810_REG_DACGAIN: 101 case NAU8810_REG_ADC ... NAU8810_REG_ADCGAIN: 102 case NAU8810_REG_EQ1 ... NAU8810_REG_EQ5: 103 case NAU8810_REG_DACLIM1 ... NAU8810_REG_DACLIM2: 104 case NAU8810_REG_NOTCH1 ... NAU8810_REG_NOTCH4: 105 case NAU8810_REG_ALC1 ... NAU8810_REG_ATTEN: 106 case NAU8810_REG_INPUT_SIGNAL ... NAU8810_REG_PGAGAIN: 107 case NAU8810_REG_ADCBOOST: 108 case NAU8810_REG_OUTPUT ... NAU8810_REG_SPKMIX: 109 case NAU8810_REG_SPKGAIN: 110 case NAU8810_REG_MONOMIX: 111 case NAU8810_REG_POWER4 ... NAU8810_REG_TSLOTCTL2: 112 case NAU8810_REG_DEVICE_REVID ... NAU8810_REG_RESERVE: 113 case NAU8810_REG_OUTCTL ... NAU8810_REG_ALC1ENHAN2: 114 case NAU8810_REG_MISCCTL: 115 case NAU8810_REG_OUTTIEOFF ... NAU8810_REG_OUTTIEOFFMAN: 116 return true; 117 default: 118 return false; 119 } 120 } 121 122 static bool nau8810_writeable_reg(struct device *dev, unsigned int reg) 123 { 124 switch (reg) { 125 case NAU8810_REG_RESET ... NAU8810_REG_SMPLR: 126 case NAU8810_REG_DAC ... NAU8810_REG_DACGAIN: 127 case NAU8810_REG_ADC ... NAU8810_REG_ADCGAIN: 128 case NAU8810_REG_EQ1 ... NAU8810_REG_EQ5: 129 case NAU8810_REG_DACLIM1 ... NAU8810_REG_DACLIM2: 130 case NAU8810_REG_NOTCH1 ... NAU8810_REG_NOTCH4: 131 case NAU8810_REG_ALC1 ... NAU8810_REG_ATTEN: 132 case NAU8810_REG_INPUT_SIGNAL ... NAU8810_REG_PGAGAIN: 133 case NAU8810_REG_ADCBOOST: 134 case NAU8810_REG_OUTPUT ... NAU8810_REG_SPKMIX: 135 case NAU8810_REG_SPKGAIN: 136 case NAU8810_REG_MONOMIX: 137 case NAU8810_REG_POWER4 ... NAU8810_REG_TSLOTCTL2: 138 case NAU8810_REG_OUTCTL ... NAU8810_REG_ALC1ENHAN2: 139 case NAU8810_REG_MISCCTL: 140 case NAU8810_REG_OUTTIEOFF ... NAU8810_REG_OUTTIEOFFMAN: 141 return true; 142 default: 143 return false; 144 } 145 } 146 147 static bool nau8810_volatile_reg(struct device *dev, unsigned int reg) 148 { 149 switch (reg) { 150 case NAU8810_REG_RESET: 151 case NAU8810_REG_DEVICE_REVID ... NAU8810_REG_RESERVE: 152 return true; 153 default: 154 return false; 155 } 156 } 157 158 /* The EQ parameters get function is to get the 5 band equalizer control. 159 * The regmap raw read can't work here because regmap doesn't provide 160 * value format for value width of 9 bits. Therefore, the driver reads data 161 * from cache and makes value format according to the endianness of 162 * bytes type control element. 163 */ 164 static int nau8810_eq_get(struct snd_kcontrol *kcontrol, 165 struct snd_ctl_elem_value *ucontrol) 166 { 167 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 168 struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component); 169 struct soc_bytes_ext *params = (void *)kcontrol->private_value; 170 int i, reg, reg_val; 171 u16 *val; 172 __be16 tmp; 173 174 val = (u16 *)ucontrol->value.bytes.data; 175 reg = NAU8810_REG_EQ1; 176 for (i = 0; i < params->max / sizeof(u16); i++) { 177 regmap_read(nau8810->regmap, reg + i, ®_val); 178 /* conversion of 16-bit integers between native CPU format 179 * and big endian format 180 */ 181 tmp = cpu_to_be16(reg_val); 182 memcpy(val + i, &tmp, sizeof(tmp)); 183 } 184 185 return 0; 186 } 187 188 /* The EQ parameters put function is to make configuration of 5 band equalizer 189 * control. These configuration includes central frequency, equalizer gain, 190 * cut-off frequency, bandwidth control, and equalizer path. 191 * The regmap raw write can't work here because regmap doesn't provide 192 * register and value format for register with address 7 bits and value 9 bits. 193 * Therefore, the driver makes value format according to the endianness of 194 * bytes type control element and writes data to codec. 195 */ 196 static int nau8810_eq_put(struct snd_kcontrol *kcontrol, 197 struct snd_ctl_elem_value *ucontrol) 198 { 199 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 200 struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component); 201 struct soc_bytes_ext *params = (void *)kcontrol->private_value; 202 void *data; 203 u16 *val, value; 204 int i, reg, ret; 205 __be16 *tmp; 206 207 data = kmemdup(ucontrol->value.bytes.data, 208 params->max, GFP_KERNEL | GFP_DMA); 209 if (!data) 210 return -ENOMEM; 211 212 val = (u16 *)data; 213 reg = NAU8810_REG_EQ1; 214 for (i = 0; i < params->max / sizeof(u16); i++) { 215 /* conversion of 16-bit integers between native CPU format 216 * and big endian format 217 */ 218 tmp = (__be16 *)(val + i); 219 value = be16_to_cpup(tmp); 220 ret = regmap_write(nau8810->regmap, reg + i, value); 221 if (ret) { 222 dev_err(component->dev, "EQ configuration fail, register: %x ret: %d\n", 223 reg + i, ret); 224 kfree(data); 225 return ret; 226 } 227 } 228 kfree(data); 229 230 return 0; 231 } 232 233 static const char * const nau8810_companding[] = { 234 "Off", "NC", "u-law", "A-law" }; 235 236 static const struct soc_enum nau8810_companding_adc_enum = 237 SOC_ENUM_SINGLE(NAU8810_REG_COMP, NAU8810_ADCCM_SFT, 238 ARRAY_SIZE(nau8810_companding), nau8810_companding); 239 240 static const struct soc_enum nau8810_companding_dac_enum = 241 SOC_ENUM_SINGLE(NAU8810_REG_COMP, NAU8810_DACCM_SFT, 242 ARRAY_SIZE(nau8810_companding), nau8810_companding); 243 244 static const char * const nau8810_deemp[] = { 245 "None", "32kHz", "44.1kHz", "48kHz" }; 246 247 static const struct soc_enum nau8810_deemp_enum = 248 SOC_ENUM_SINGLE(NAU8810_REG_DAC, NAU8810_DEEMP_SFT, 249 ARRAY_SIZE(nau8810_deemp), nau8810_deemp); 250 251 static const char * const nau8810_eqmode[] = {"Capture", "Playback" }; 252 253 static const struct soc_enum nau8810_eqmode_enum = 254 SOC_ENUM_SINGLE(NAU8810_REG_EQ1, NAU8810_EQM_SFT, 255 ARRAY_SIZE(nau8810_eqmode), nau8810_eqmode); 256 257 static const char * const nau8810_alc[] = {"Normal", "Limiter" }; 258 259 static const struct soc_enum nau8810_alc_enum = 260 SOC_ENUM_SINGLE(NAU8810_REG_ALC3, NAU8810_ALCM_SFT, 261 ARRAY_SIZE(nau8810_alc), nau8810_alc); 262 263 static const DECLARE_TLV_DB_SCALE(digital_tlv, -12750, 50, 1); 264 static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0); 265 static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1200, 75, 0); 266 static const DECLARE_TLV_DB_SCALE(spk_tlv, -5700, 100, 0); 267 268 static const struct snd_kcontrol_new nau8810_snd_controls[] = { 269 SOC_ENUM("ADC Companding", nau8810_companding_adc_enum), 270 SOC_ENUM("DAC Companding", nau8810_companding_dac_enum), 271 SOC_ENUM("DAC De-emphasis", nau8810_deemp_enum), 272 273 SOC_ENUM("EQ Function", nau8810_eqmode_enum), 274 SND_SOC_BYTES_EXT("EQ Parameters", 10, 275 nau8810_eq_get, nau8810_eq_put), 276 277 SOC_SINGLE("DAC Inversion Switch", NAU8810_REG_DAC, 278 NAU8810_DACPL_SFT, 1, 0), 279 SOC_SINGLE_TLV("Playback Volume", NAU8810_REG_DACGAIN, 280 NAU8810_DACGAIN_SFT, 0xff, 0, digital_tlv), 281 282 SOC_SINGLE("High Pass Filter Switch", NAU8810_REG_ADC, 283 NAU8810_HPFEN_SFT, 1, 0), 284 SOC_SINGLE("High Pass Cut Off", NAU8810_REG_ADC, 285 NAU8810_HPF_SFT, 0x7, 0), 286 287 SOC_SINGLE("ADC Inversion Switch", NAU8810_REG_ADC, 288 NAU8810_ADCPL_SFT, 1, 0), 289 SOC_SINGLE_TLV("Capture Volume", NAU8810_REG_ADCGAIN, 290 NAU8810_ADCGAIN_SFT, 0xff, 0, digital_tlv), 291 292 SOC_SINGLE_TLV("EQ1 Volume", NAU8810_REG_EQ1, 293 NAU8810_EQ1GC_SFT, 0x18, 1, eq_tlv), 294 SOC_SINGLE_TLV("EQ2 Volume", NAU8810_REG_EQ2, 295 NAU8810_EQ2GC_SFT, 0x18, 1, eq_tlv), 296 SOC_SINGLE_TLV("EQ3 Volume", NAU8810_REG_EQ3, 297 NAU8810_EQ3GC_SFT, 0x18, 1, eq_tlv), 298 SOC_SINGLE_TLV("EQ4 Volume", NAU8810_REG_EQ4, 299 NAU8810_EQ4GC_SFT, 0x18, 1, eq_tlv), 300 SOC_SINGLE_TLV("EQ5 Volume", NAU8810_REG_EQ5, 301 NAU8810_EQ5GC_SFT, 0x18, 1, eq_tlv), 302 303 SOC_SINGLE("DAC Limiter Switch", NAU8810_REG_DACLIM1, 304 NAU8810_DACLIMEN_SFT, 1, 0), 305 SOC_SINGLE("DAC Limiter Decay", NAU8810_REG_DACLIM1, 306 NAU8810_DACLIMDCY_SFT, 0xf, 0), 307 SOC_SINGLE("DAC Limiter Attack", NAU8810_REG_DACLIM1, 308 NAU8810_DACLIMATK_SFT, 0xf, 0), 309 SOC_SINGLE("DAC Limiter Threshold", NAU8810_REG_DACLIM2, 310 NAU8810_DACLIMTHL_SFT, 0x7, 0), 311 SOC_SINGLE("DAC Limiter Boost", NAU8810_REG_DACLIM2, 312 NAU8810_DACLIMBST_SFT, 0xf, 0), 313 314 SOC_ENUM("ALC Mode", nau8810_alc_enum), 315 SOC_SINGLE("ALC Enable Switch", NAU8810_REG_ALC1, 316 NAU8810_ALCEN_SFT, 1, 0), 317 SOC_SINGLE("ALC Max Volume", NAU8810_REG_ALC1, 318 NAU8810_ALCMXGAIN_SFT, 0x7, 0), 319 SOC_SINGLE("ALC Min Volume", NAU8810_REG_ALC1, 320 NAU8810_ALCMINGAIN_SFT, 0x7, 0), 321 SOC_SINGLE("ALC ZC Switch", NAU8810_REG_ALC2, 322 NAU8810_ALCZC_SFT, 1, 0), 323 SOC_SINGLE("ALC Hold", NAU8810_REG_ALC2, 324 NAU8810_ALCHT_SFT, 0xf, 0), 325 SOC_SINGLE("ALC Target", NAU8810_REG_ALC2, 326 NAU8810_ALCSL_SFT, 0xf, 0), 327 SOC_SINGLE("ALC Decay", NAU8810_REG_ALC3, 328 NAU8810_ALCDCY_SFT, 0xf, 0), 329 SOC_SINGLE("ALC Attack", NAU8810_REG_ALC3, 330 NAU8810_ALCATK_SFT, 0xf, 0), 331 SOC_SINGLE("ALC Noise Gate Switch", NAU8810_REG_NOISEGATE, 332 NAU8810_ALCNEN_SFT, 1, 0), 333 SOC_SINGLE("ALC Noise Gate Threshold", NAU8810_REG_NOISEGATE, 334 NAU8810_ALCNTH_SFT, 0x7, 0), 335 336 SOC_SINGLE("PGA ZC Switch", NAU8810_REG_PGAGAIN, 337 NAU8810_PGAZC_SFT, 1, 0), 338 SOC_SINGLE_TLV("PGA Volume", NAU8810_REG_PGAGAIN, 339 NAU8810_PGAGAIN_SFT, 0x3f, 0, inpga_tlv), 340 341 SOC_SINGLE("Speaker ZC Switch", NAU8810_REG_SPKGAIN, 342 NAU8810_SPKZC_SFT, 1, 0), 343 SOC_SINGLE("Speaker Mute Switch", NAU8810_REG_SPKGAIN, 344 NAU8810_SPKMT_SFT, 1, 0), 345 SOC_SINGLE_TLV("Speaker Volume", NAU8810_REG_SPKGAIN, 346 NAU8810_SPKGAIN_SFT, 0x3f, 0, spk_tlv), 347 348 SOC_SINGLE("Capture Boost(+20dB)", NAU8810_REG_ADCBOOST, 349 NAU8810_PGABST_SFT, 1, 0), 350 SOC_SINGLE("Mono Mute Switch", NAU8810_REG_MONOMIX, 351 NAU8810_MOUTMXMT_SFT, 1, 0), 352 353 SOC_SINGLE("DAC Oversampling Rate(128x) Switch", NAU8810_REG_DAC, 354 NAU8810_DACOS_SFT, 1, 0), 355 SOC_SINGLE("ADC Oversampling Rate(128x) Switch", NAU8810_REG_ADC, 356 NAU8810_ADCOS_SFT, 1, 0), 357 }; 358 359 /* Speaker Output Mixer */ 360 static const struct snd_kcontrol_new nau8810_speaker_mixer_controls[] = { 361 SOC_DAPM_SINGLE("AUX Bypass Switch", NAU8810_REG_SPKMIX, 362 NAU8810_AUXSPK_SFT, 1, 0), 363 SOC_DAPM_SINGLE("Line Bypass Switch", NAU8810_REG_SPKMIX, 364 NAU8810_BYPSPK_SFT, 1, 0), 365 SOC_DAPM_SINGLE("PCM Playback Switch", NAU8810_REG_SPKMIX, 366 NAU8810_DACSPK_SFT, 1, 0), 367 }; 368 369 /* Mono Output Mixer */ 370 static const struct snd_kcontrol_new nau8810_mono_mixer_controls[] = { 371 SOC_DAPM_SINGLE("AUX Bypass Switch", NAU8810_REG_MONOMIX, 372 NAU8810_AUXMOUT_SFT, 1, 0), 373 SOC_DAPM_SINGLE("Line Bypass Switch", NAU8810_REG_MONOMIX, 374 NAU8810_BYPMOUT_SFT, 1, 0), 375 SOC_DAPM_SINGLE("PCM Playback Switch", NAU8810_REG_MONOMIX, 376 NAU8810_DACMOUT_SFT, 1, 0), 377 }; 378 379 /* PGA Mute */ 380 static const struct snd_kcontrol_new nau8810_pgaboost_mixer_controls[] = { 381 SOC_DAPM_SINGLE("AUX PGA Switch", NAU8810_REG_ADCBOOST, 382 NAU8810_AUXBSTGAIN_SFT, 0x7, 0), 383 SOC_DAPM_SINGLE("PGA Mute Switch", NAU8810_REG_PGAGAIN, 384 NAU8810_PGAMT_SFT, 1, 1), 385 SOC_DAPM_SINGLE("PMIC PGA Switch", NAU8810_REG_ADCBOOST, 386 NAU8810_PMICBSTGAIN_SFT, 0x7, 0), 387 }; 388 389 /* Input PGA */ 390 static const struct snd_kcontrol_new nau8810_inpga[] = { 391 SOC_DAPM_SINGLE("AUX Switch", NAU8810_REG_INPUT_SIGNAL, 392 NAU8810_AUXPGA_SFT, 1, 0), 393 SOC_DAPM_SINGLE("MicN Switch", NAU8810_REG_INPUT_SIGNAL, 394 NAU8810_NMICPGA_SFT, 1, 0), 395 SOC_DAPM_SINGLE("MicP Switch", NAU8810_REG_INPUT_SIGNAL, 396 NAU8810_PMICPGA_SFT, 1, 0), 397 }; 398 399 /* Loopback Switch */ 400 static const struct snd_kcontrol_new nau8810_loopback = 401 SOC_DAPM_SINGLE("Switch", NAU8810_REG_COMP, 402 NAU8810_ADDAP_SFT, 1, 0); 403 404 static int check_mclk_select_pll(struct snd_soc_dapm_widget *source, 405 struct snd_soc_dapm_widget *sink) 406 { 407 struct snd_soc_component *component = snd_soc_dapm_to_component(source->dapm); 408 struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component); 409 unsigned int value; 410 411 regmap_read(nau8810->regmap, NAU8810_REG_CLOCK, &value); 412 return (value & NAU8810_CLKM_MASK); 413 } 414 415 static int check_mic_enabled(struct snd_soc_dapm_widget *source, 416 struct snd_soc_dapm_widget *sink) 417 { 418 struct snd_soc_component *component = 419 snd_soc_dapm_to_component(source->dapm); 420 struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component); 421 unsigned int value; 422 423 regmap_read(nau8810->regmap, NAU8810_REG_INPUT_SIGNAL, &value); 424 if (value & NAU8810_PMICPGA_EN || value & NAU8810_NMICPGA_EN) 425 return 1; 426 regmap_read(nau8810->regmap, NAU8810_REG_ADCBOOST, &value); 427 if (value & NAU8810_PMICBSTGAIN_MASK) 428 return 1; 429 return 0; 430 } 431 432 static const struct snd_soc_dapm_widget nau8810_dapm_widgets[] = { 433 SND_SOC_DAPM_MIXER("Speaker Mixer", NAU8810_REG_POWER3, 434 NAU8810_SPKMX_EN_SFT, 0, &nau8810_speaker_mixer_controls[0], 435 ARRAY_SIZE(nau8810_speaker_mixer_controls)), 436 SND_SOC_DAPM_MIXER("Mono Mixer", NAU8810_REG_POWER3, 437 NAU8810_MOUTMX_EN_SFT, 0, &nau8810_mono_mixer_controls[0], 438 ARRAY_SIZE(nau8810_mono_mixer_controls)), 439 SND_SOC_DAPM_DAC("DAC", "Playback", NAU8810_REG_POWER3, 440 NAU8810_DAC_EN_SFT, 0), 441 SND_SOC_DAPM_ADC("ADC", "Capture", NAU8810_REG_POWER2, 442 NAU8810_ADC_EN_SFT, 0), 443 SND_SOC_DAPM_PGA("SpkN Out", NAU8810_REG_POWER3, 444 NAU8810_NSPK_EN_SFT, 0, NULL, 0), 445 SND_SOC_DAPM_PGA("SpkP Out", NAU8810_REG_POWER3, 446 NAU8810_PSPK_EN_SFT, 0, NULL, 0), 447 SND_SOC_DAPM_PGA("Mono Out", NAU8810_REG_POWER3, 448 NAU8810_MOUT_EN_SFT, 0, NULL, 0), 449 450 SND_SOC_DAPM_MIXER("Input PGA", NAU8810_REG_POWER2, 451 NAU8810_PGA_EN_SFT, 0, nau8810_inpga, 452 ARRAY_SIZE(nau8810_inpga)), 453 SND_SOC_DAPM_MIXER("Input Boost Stage", NAU8810_REG_POWER2, 454 NAU8810_BST_EN_SFT, 0, nau8810_pgaboost_mixer_controls, 455 ARRAY_SIZE(nau8810_pgaboost_mixer_controls)), 456 SND_SOC_DAPM_PGA("AUX Input", NAU8810_REG_POWER1, 457 NAU8810_AUX_EN_SFT, 0, NULL, 0), 458 459 SND_SOC_DAPM_SUPPLY("Mic Bias", NAU8810_REG_POWER1, 460 NAU8810_MICBIAS_EN_SFT, 0, NULL, 0), 461 SND_SOC_DAPM_SUPPLY("PLL", NAU8810_REG_POWER1, 462 NAU8810_PLL_EN_SFT, 0, NULL, 0), 463 464 SND_SOC_DAPM_SWITCH("Digital Loopback", SND_SOC_NOPM, 0, 0, 465 &nau8810_loopback), 466 467 SND_SOC_DAPM_INPUT("AUX"), 468 SND_SOC_DAPM_INPUT("MICN"), 469 SND_SOC_DAPM_INPUT("MICP"), 470 SND_SOC_DAPM_OUTPUT("MONOOUT"), 471 SND_SOC_DAPM_OUTPUT("SPKOUTP"), 472 SND_SOC_DAPM_OUTPUT("SPKOUTN"), 473 }; 474 475 static const struct snd_soc_dapm_route nau8810_dapm_routes[] = { 476 {"DAC", NULL, "PLL", check_mclk_select_pll}, 477 478 /* Mono output mixer */ 479 {"Mono Mixer", "AUX Bypass Switch", "AUX Input"}, 480 {"Mono Mixer", "PCM Playback Switch", "DAC"}, 481 {"Mono Mixer", "Line Bypass Switch", "Input Boost Stage"}, 482 483 /* Speaker output mixer */ 484 {"Speaker Mixer", "AUX Bypass Switch", "AUX Input"}, 485 {"Speaker Mixer", "PCM Playback Switch", "DAC"}, 486 {"Speaker Mixer", "Line Bypass Switch", "Input Boost Stage"}, 487 488 /* Outputs */ 489 {"Mono Out", NULL, "Mono Mixer"}, 490 {"MONOOUT", NULL, "Mono Out"}, 491 {"SpkN Out", NULL, "Speaker Mixer"}, 492 {"SpkP Out", NULL, "Speaker Mixer"}, 493 {"SPKOUTN", NULL, "SpkN Out"}, 494 {"SPKOUTP", NULL, "SpkP Out"}, 495 496 /* Input Boost Stage */ 497 {"ADC", NULL, "Input Boost Stage"}, 498 {"ADC", NULL, "PLL", check_mclk_select_pll}, 499 {"Input Boost Stage", "AUX PGA Switch", "AUX Input"}, 500 {"Input Boost Stage", "PGA Mute Switch", "Input PGA"}, 501 {"Input Boost Stage", "PMIC PGA Switch", "MICP"}, 502 503 /* Input PGA */ 504 {"Input PGA", NULL, "Mic Bias", check_mic_enabled}, 505 {"Input PGA", "AUX Switch", "AUX Input"}, 506 {"Input PGA", "MicN Switch", "MICN"}, 507 {"Input PGA", "MicP Switch", "MICP"}, 508 {"AUX Input", NULL, "AUX"}, 509 510 /* Digital Looptack */ 511 {"Digital Loopback", "Switch", "ADC"}, 512 {"DAC", NULL, "Digital Loopback"}, 513 }; 514 515 static int nau8810_set_sysclk(struct snd_soc_dai *dai, 516 int clk_id, unsigned int freq, int dir) 517 { 518 struct snd_soc_component *component = dai->component; 519 struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component); 520 521 nau8810->clk_id = clk_id; 522 nau8810->sysclk = freq; 523 dev_dbg(nau8810->dev, "master sysclk %dHz, source %s\n", 524 freq, clk_id == NAU8810_SCLK_PLL ? "PLL" : "MCLK"); 525 526 return 0; 527 } 528 529 static int nau8810_calc_pll(unsigned int pll_in, 530 unsigned int fs, struct nau8810_pll *pll_param) 531 { 532 u64 f2, f2_max, pll_ratio; 533 int i, scal_sel; 534 535 if (pll_in > NAU_PLL_REF_MAX || pll_in < NAU_PLL_REF_MIN) 536 return -EINVAL; 537 538 f2_max = 0; 539 scal_sel = ARRAY_SIZE(nau8810_mclk_scaler); 540 for (i = 0; i < ARRAY_SIZE(nau8810_mclk_scaler); i++) { 541 f2 = 256ULL * fs * 4 * nau8810_mclk_scaler[i]; 542 f2 = div_u64(f2, 10); 543 if (f2 > NAU_PLL_FREQ_MIN && f2 < NAU_PLL_FREQ_MAX && 544 f2_max < f2) { 545 f2_max = f2; 546 scal_sel = i; 547 } 548 } 549 if (ARRAY_SIZE(nau8810_mclk_scaler) == scal_sel) 550 return -EINVAL; 551 pll_param->mclk_scaler = scal_sel; 552 f2 = f2_max; 553 554 /* Calculate the PLL 4-bit integer input and the PLL 24-bit fractional 555 * input; round up the 24+4bit. 556 */ 557 pll_ratio = div_u64(f2 << 28, pll_in); 558 pll_param->pre_factor = 0; 559 if (((pll_ratio >> 28) & 0xF) < NAU_PLL_OPTOP_MIN) { 560 pll_ratio <<= 1; 561 pll_param->pre_factor = 1; 562 } 563 pll_param->pll_int = (pll_ratio >> 28) & 0xF; 564 pll_param->pll_frac = ((pll_ratio & 0xFFFFFFF) >> 4); 565 566 return 0; 567 } 568 569 static int nau8810_set_pll(struct snd_soc_dai *codec_dai, int pll_id, 570 int source, unsigned int freq_in, unsigned int freq_out) 571 { 572 struct snd_soc_component *component = codec_dai->component; 573 struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component); 574 struct regmap *map = nau8810->regmap; 575 struct nau8810_pll *pll_param = &nau8810->pll; 576 int ret, fs; 577 578 fs = freq_out / 256; 579 ret = nau8810_calc_pll(freq_in, fs, pll_param); 580 if (ret < 0) { 581 dev_err(nau8810->dev, "Unsupported input clock %d\n", freq_in); 582 return ret; 583 } 584 dev_info(nau8810->dev, "pll_int=%x pll_frac=%x mclk_scaler=%x pre_factor=%x\n", 585 pll_param->pll_int, pll_param->pll_frac, pll_param->mclk_scaler, 586 pll_param->pre_factor); 587 588 regmap_update_bits(map, NAU8810_REG_PLLN, 589 NAU8810_PLLMCLK_DIV2 | NAU8810_PLLN_MASK, 590 (pll_param->pre_factor ? NAU8810_PLLMCLK_DIV2 : 0) | 591 pll_param->pll_int); 592 regmap_write(map, NAU8810_REG_PLLK1, 593 (pll_param->pll_frac >> NAU8810_PLLK1_SFT) & 594 NAU8810_PLLK1_MASK); 595 regmap_write(map, NAU8810_REG_PLLK2, 596 (pll_param->pll_frac >> NAU8810_PLLK2_SFT) & 597 NAU8810_PLLK2_MASK); 598 regmap_write(map, NAU8810_REG_PLLK3, 599 pll_param->pll_frac & NAU8810_PLLK3_MASK); 600 regmap_update_bits(map, NAU8810_REG_CLOCK, NAU8810_MCLKSEL_MASK, 601 pll_param->mclk_scaler << NAU8810_MCLKSEL_SFT); 602 regmap_update_bits(map, NAU8810_REG_CLOCK, 603 NAU8810_CLKM_MASK, NAU8810_CLKM_PLL); 604 605 return 0; 606 } 607 608 static int nau8810_set_dai_fmt(struct snd_soc_dai *codec_dai, 609 unsigned int fmt) 610 { 611 struct snd_soc_component *component = codec_dai->component; 612 struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component); 613 u16 ctrl1_val = 0, ctrl2_val = 0; 614 615 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 616 case SND_SOC_DAIFMT_CBM_CFM: 617 ctrl2_val |= NAU8810_CLKIO_MASTER; 618 break; 619 case SND_SOC_DAIFMT_CBS_CFS: 620 break; 621 default: 622 return -EINVAL; 623 } 624 625 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 626 case SND_SOC_DAIFMT_I2S: 627 ctrl1_val |= NAU8810_AIFMT_I2S; 628 break; 629 case SND_SOC_DAIFMT_RIGHT_J: 630 break; 631 case SND_SOC_DAIFMT_LEFT_J: 632 ctrl1_val |= NAU8810_AIFMT_LEFT; 633 break; 634 case SND_SOC_DAIFMT_DSP_A: 635 ctrl1_val |= NAU8810_AIFMT_PCM_A; 636 break; 637 default: 638 return -EINVAL; 639 } 640 641 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 642 case SND_SOC_DAIFMT_NB_NF: 643 break; 644 case SND_SOC_DAIFMT_IB_IF: 645 ctrl1_val |= NAU8810_BCLKP_IB | NAU8810_FSP_IF; 646 break; 647 case SND_SOC_DAIFMT_IB_NF: 648 ctrl1_val |= NAU8810_BCLKP_IB; 649 break; 650 case SND_SOC_DAIFMT_NB_IF: 651 ctrl1_val |= NAU8810_FSP_IF; 652 break; 653 default: 654 return -EINVAL; 655 } 656 657 regmap_update_bits(nau8810->regmap, NAU8810_REG_IFACE, 658 NAU8810_AIFMT_MASK | NAU8810_FSP_IF | 659 NAU8810_BCLKP_IB, ctrl1_val); 660 regmap_update_bits(nau8810->regmap, NAU8810_REG_CLOCK, 661 NAU8810_CLKIO_MASK, ctrl2_val); 662 663 return 0; 664 } 665 666 static int nau8810_mclk_clkdiv(struct nau8810 *nau8810, int rate) 667 { 668 int i, sclk, imclk = rate * 256, div = 0; 669 670 if (!nau8810->sysclk) { 671 dev_err(nau8810->dev, "Make mclk div configuration fail because of invalid system clock\n"); 672 return -EINVAL; 673 } 674 675 /* Configure the master clock prescaler div to make system 676 * clock to approximate the internal master clock (IMCLK); 677 * and large or equal to IMCLK. 678 */ 679 for (i = 1; i < ARRAY_SIZE(nau8810_mclk_scaler); i++) { 680 sclk = (nau8810->sysclk * 10) / 681 nau8810_mclk_scaler[i]; 682 if (sclk < imclk) 683 break; 684 div = i; 685 } 686 dev_dbg(nau8810->dev, 687 "master clock prescaler %x for fs %d\n", div, rate); 688 689 /* master clock from MCLK and disable PLL */ 690 regmap_update_bits(nau8810->regmap, NAU8810_REG_CLOCK, 691 NAU8810_MCLKSEL_MASK, (div << NAU8810_MCLKSEL_SFT)); 692 regmap_update_bits(nau8810->regmap, NAU8810_REG_CLOCK, 693 NAU8810_CLKM_MASK, NAU8810_CLKM_MCLK); 694 695 return 0; 696 } 697 698 static int nau8810_pcm_hw_params(struct snd_pcm_substream *substream, 699 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) 700 { 701 struct snd_soc_component *component = dai->component; 702 struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component); 703 int val_len = 0, val_rate = 0, ret = 0; 704 unsigned int ctrl_val, bclk_fs, bclk_div; 705 706 /* Select BCLK configuration if the codec as master. */ 707 regmap_read(nau8810->regmap, NAU8810_REG_CLOCK, &ctrl_val); 708 if (ctrl_val & NAU8810_CLKIO_MASTER) { 709 /* get the bclk and fs ratio */ 710 bclk_fs = snd_soc_params_to_bclk(params) / params_rate(params); 711 if (bclk_fs <= 32) 712 bclk_div = NAU8810_BCLKDIV_8; 713 else if (bclk_fs <= 64) 714 bclk_div = NAU8810_BCLKDIV_4; 715 else if (bclk_fs <= 128) 716 bclk_div = NAU8810_BCLKDIV_2; 717 else 718 return -EINVAL; 719 regmap_update_bits(nau8810->regmap, NAU8810_REG_CLOCK, 720 NAU8810_BCLKSEL_MASK, bclk_div); 721 } 722 723 switch (params_width(params)) { 724 case 16: 725 break; 726 case 20: 727 val_len |= NAU8810_WLEN_20; 728 break; 729 case 24: 730 val_len |= NAU8810_WLEN_24; 731 break; 732 case 32: 733 val_len |= NAU8810_WLEN_32; 734 break; 735 } 736 737 switch (params_rate(params)) { 738 case 8000: 739 val_rate |= NAU8810_SMPLR_8K; 740 break; 741 case 11025: 742 val_rate |= NAU8810_SMPLR_12K; 743 break; 744 case 16000: 745 val_rate |= NAU8810_SMPLR_16K; 746 break; 747 case 22050: 748 val_rate |= NAU8810_SMPLR_24K; 749 break; 750 case 32000: 751 val_rate |= NAU8810_SMPLR_32K; 752 break; 753 case 44100: 754 case 48000: 755 break; 756 } 757 758 regmap_update_bits(nau8810->regmap, NAU8810_REG_IFACE, 759 NAU8810_WLEN_MASK, val_len); 760 regmap_update_bits(nau8810->regmap, NAU8810_REG_SMPLR, 761 NAU8810_SMPLR_MASK, val_rate); 762 763 /* If the master clock is from MCLK, provide the runtime FS for driver 764 * to get the master clock prescaler configuration. 765 */ 766 if (nau8810->clk_id == NAU8810_SCLK_MCLK) { 767 ret = nau8810_mclk_clkdiv(nau8810, params_rate(params)); 768 if (ret < 0) 769 dev_err(nau8810->dev, "MCLK div configuration fail\n"); 770 } 771 772 return ret; 773 } 774 775 static int nau8810_set_bias_level(struct snd_soc_component *component, 776 enum snd_soc_bias_level level) 777 { 778 struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component); 779 struct regmap *map = nau8810->regmap; 780 781 switch (level) { 782 case SND_SOC_BIAS_ON: 783 case SND_SOC_BIAS_PREPARE: 784 regmap_update_bits(map, NAU8810_REG_POWER1, 785 NAU8810_REFIMP_MASK, NAU8810_REFIMP_80K); 786 break; 787 788 case SND_SOC_BIAS_STANDBY: 789 regmap_update_bits(map, NAU8810_REG_POWER1, 790 NAU8810_IOBUF_EN | NAU8810_ABIAS_EN, 791 NAU8810_IOBUF_EN | NAU8810_ABIAS_EN); 792 793 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { 794 regcache_sync(map); 795 regmap_update_bits(map, NAU8810_REG_POWER1, 796 NAU8810_REFIMP_MASK, NAU8810_REFIMP_3K); 797 mdelay(100); 798 } 799 regmap_update_bits(map, NAU8810_REG_POWER1, 800 NAU8810_REFIMP_MASK, NAU8810_REFIMP_300K); 801 break; 802 803 case SND_SOC_BIAS_OFF: 804 regmap_write(map, NAU8810_REG_POWER1, 0); 805 regmap_write(map, NAU8810_REG_POWER2, 0); 806 regmap_write(map, NAU8810_REG_POWER3, 0); 807 break; 808 } 809 810 return 0; 811 } 812 813 814 #define NAU8810_RATES (SNDRV_PCM_RATE_8000_48000) 815 816 #define NAU8810_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ 817 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) 818 819 static const struct snd_soc_dai_ops nau8810_ops = { 820 .hw_params = nau8810_pcm_hw_params, 821 .set_fmt = nau8810_set_dai_fmt, 822 .set_sysclk = nau8810_set_sysclk, 823 .set_pll = nau8810_set_pll, 824 }; 825 826 static struct snd_soc_dai_driver nau8810_dai = { 827 .name = "nau8810-hifi", 828 .playback = { 829 .stream_name = "Playback", 830 .channels_min = 1, 831 .channels_max = 2, /* Only 1 channel of data */ 832 .rates = NAU8810_RATES, 833 .formats = NAU8810_FORMATS, 834 }, 835 .capture = { 836 .stream_name = "Capture", 837 .channels_min = 1, 838 .channels_max = 2, /* Only 1 channel of data */ 839 .rates = NAU8810_RATES, 840 .formats = NAU8810_FORMATS, 841 }, 842 .ops = &nau8810_ops, 843 .symmetric_rate = 1, 844 }; 845 846 static const struct regmap_config nau8810_regmap_config = { 847 .reg_bits = 7, 848 .val_bits = 9, 849 850 .max_register = NAU8810_REG_MAX, 851 .readable_reg = nau8810_readable_reg, 852 .writeable_reg = nau8810_writeable_reg, 853 .volatile_reg = nau8810_volatile_reg, 854 855 .cache_type = REGCACHE_RBTREE, 856 .reg_defaults = nau8810_reg_defaults, 857 .num_reg_defaults = ARRAY_SIZE(nau8810_reg_defaults), 858 }; 859 860 static const struct snd_soc_component_driver nau8810_component_driver = { 861 .set_bias_level = nau8810_set_bias_level, 862 .controls = nau8810_snd_controls, 863 .num_controls = ARRAY_SIZE(nau8810_snd_controls), 864 .dapm_widgets = nau8810_dapm_widgets, 865 .num_dapm_widgets = ARRAY_SIZE(nau8810_dapm_widgets), 866 .dapm_routes = nau8810_dapm_routes, 867 .num_dapm_routes = ARRAY_SIZE(nau8810_dapm_routes), 868 .suspend_bias_off = 1, 869 .idle_bias_on = 1, 870 .use_pmdown_time = 1, 871 .endianness = 1, 872 }; 873 874 static int nau8810_i2c_probe(struct i2c_client *i2c) 875 { 876 struct device *dev = &i2c->dev; 877 struct nau8810 *nau8810 = dev_get_platdata(dev); 878 879 if (!nau8810) { 880 nau8810 = devm_kzalloc(dev, sizeof(*nau8810), GFP_KERNEL); 881 if (!nau8810) 882 return -ENOMEM; 883 } 884 i2c_set_clientdata(i2c, nau8810); 885 886 nau8810->regmap = devm_regmap_init_i2c(i2c, &nau8810_regmap_config); 887 if (IS_ERR(nau8810->regmap)) 888 return PTR_ERR(nau8810->regmap); 889 nau8810->dev = dev; 890 891 regmap_write(nau8810->regmap, NAU8810_REG_RESET, 0x00); 892 893 return devm_snd_soc_register_component(dev, 894 &nau8810_component_driver, &nau8810_dai, 1); 895 } 896 897 static const struct i2c_device_id nau8810_i2c_id[] = { 898 { "nau8810" }, 899 { "nau8812" }, 900 { "nau8814" }, 901 { } 902 }; 903 MODULE_DEVICE_TABLE(i2c, nau8810_i2c_id); 904 905 #ifdef CONFIG_OF 906 static const struct of_device_id nau8810_of_match[] = { 907 { .compatible = "nuvoton,nau8810", }, 908 { .compatible = "nuvoton,nau8812", }, 909 { .compatible = "nuvoton,nau8814", }, 910 { } 911 }; 912 MODULE_DEVICE_TABLE(of, nau8810_of_match); 913 #endif 914 915 static struct i2c_driver nau8810_i2c_driver = { 916 .driver = { 917 .name = "nau8810", 918 .of_match_table = of_match_ptr(nau8810_of_match), 919 }, 920 .probe = nau8810_i2c_probe, 921 .id_table = nau8810_i2c_id, 922 }; 923 924 module_i2c_driver(nau8810_i2c_driver); 925 926 MODULE_DESCRIPTION("ASoC NAU8810 driver"); 927 MODULE_AUTHOR("David Lin <ctlin0@nuvoton.com>"); 928 MODULE_LICENSE("GPL v2"); 929