1// SPDX-License-Identifier: GPL-2.0 2// 3// nau8822.c -- NAU8822 ALSA Soc Audio driver 4// 5// Copyright 2017 Nuvoton Technology Crop. 6// 7// Author: David Lin <ctlin0@nuvoton.com> 8// Co-author: John Hsu <kchsu0@nuvoton.com> 9// Co-author: Seven Li <wtli@nuvoton.com> 10// 11// Based on WM8974.c 12 13#include <linux/module.h> 14#include <linux/moduleparam.h> 15#include <linux/kernel.h> 16#include <linux/init.h> 17#include <linux/delay.h> 18#include <linux/pm.h> 19#include <linux/i2c.h> 20#include <linux/regmap.h> 21#include <linux/slab.h> 22#include <sound/core.h> 23#include <sound/pcm.h> 24#include <sound/pcm_params.h> 25#include <sound/soc.h> 26#include <sound/initval.h> 27#include <sound/tlv.h> 28#include <asm/div64.h> 29#include "nau8822.h" 30 31#define NAU_PLL_FREQ_MAX 100000000 32#define NAU_PLL_FREQ_MIN 90000000 33#define NAU_PLL_REF_MAX 33000000 34#define NAU_PLL_REF_MIN 8000000 35#define NAU_PLL_OPTOP_MIN 6 36 37static const int nau8822_mclk_scaler[] = { 10, 15, 20, 30, 40, 60, 80, 120 }; 38 39static const struct reg_default nau8822_reg_defaults[] = { 40 { NAU8822_REG_POWER_MANAGEMENT_1, 0x0000 }, 41 { NAU8822_REG_POWER_MANAGEMENT_2, 0x0000 }, 42 { NAU8822_REG_POWER_MANAGEMENT_3, 0x0000 }, 43 { NAU8822_REG_AUDIO_INTERFACE, 0x0050 }, 44 { NAU8822_REG_COMPANDING_CONTROL, 0x0000 }, 45 { NAU8822_REG_CLOCKING, 0x0140 }, 46 { NAU8822_REG_ADDITIONAL_CONTROL, 0x0000 }, 47 { NAU8822_REG_GPIO_CONTROL, 0x0000 }, 48 { NAU8822_REG_JACK_DETECT_CONTROL_1, 0x0000 }, 49 { NAU8822_REG_DAC_CONTROL, 0x0000 }, 50 { NAU8822_REG_LEFT_DAC_DIGITAL_VOLUME, 0x00ff }, 51 { NAU8822_REG_RIGHT_DAC_DIGITAL_VOLUME, 0x00ff }, 52 { NAU8822_REG_JACK_DETECT_CONTROL_2, 0x0000 }, 53 { NAU8822_REG_ADC_CONTROL, 0x0100 }, 54 { NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME, 0x00ff }, 55 { NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME, 0x00ff }, 56 { NAU8822_REG_EQ1, 0x012c }, 57 { NAU8822_REG_EQ2, 0x002c }, 58 { NAU8822_REG_EQ3, 0x002c }, 59 { NAU8822_REG_EQ4, 0x002c }, 60 { NAU8822_REG_EQ5, 0x002c }, 61 { NAU8822_REG_DAC_LIMITER_1, 0x0032 }, 62 { NAU8822_REG_DAC_LIMITER_2, 0x0000 }, 63 { NAU8822_REG_NOTCH_FILTER_1, 0x0000 }, 64 { NAU8822_REG_NOTCH_FILTER_2, 0x0000 }, 65 { NAU8822_REG_NOTCH_FILTER_3, 0x0000 }, 66 { NAU8822_REG_NOTCH_FILTER_4, 0x0000 }, 67 { NAU8822_REG_ALC_CONTROL_1, 0x0038 }, 68 { NAU8822_REG_ALC_CONTROL_2, 0x000b }, 69 { NAU8822_REG_ALC_CONTROL_3, 0x0032 }, 70 { NAU8822_REG_NOISE_GATE, 0x0010 }, 71 { NAU8822_REG_PLL_N, 0x0008 }, 72 { NAU8822_REG_PLL_K1, 0x000c }, 73 { NAU8822_REG_PLL_K2, 0x0093 }, 74 { NAU8822_REG_PLL_K3, 0x00e9 }, 75 { NAU8822_REG_3D_CONTROL, 0x0000 }, 76 { NAU8822_REG_RIGHT_SPEAKER_CONTROL, 0x0000 }, 77 { NAU8822_REG_INPUT_CONTROL, 0x0033 }, 78 { NAU8822_REG_LEFT_INP_PGA_CONTROL, 0x0010 }, 79 { NAU8822_REG_RIGHT_INP_PGA_CONTROL, 0x0010 }, 80 { NAU8822_REG_LEFT_ADC_BOOST_CONTROL, 0x0100 }, 81 { NAU8822_REG_RIGHT_ADC_BOOST_CONTROL, 0x0100 }, 82 { NAU8822_REG_OUTPUT_CONTROL, 0x0002 }, 83 { NAU8822_REG_LEFT_MIXER_CONTROL, 0x0001 }, 84 { NAU8822_REG_RIGHT_MIXER_CONTROL, 0x0001 }, 85 { NAU8822_REG_LHP_VOLUME, 0x0039 }, 86 { NAU8822_REG_RHP_VOLUME, 0x0039 }, 87 { NAU8822_REG_LSPKOUT_VOLUME, 0x0039 }, 88 { NAU8822_REG_RSPKOUT_VOLUME, 0x0039 }, 89 { NAU8822_REG_AUX2_MIXER, 0x0001 }, 90 { NAU8822_REG_AUX1_MIXER, 0x0001 }, 91 { NAU8822_REG_POWER_MANAGEMENT_4, 0x0000 }, 92 { NAU8822_REG_LEFT_TIME_SLOT, 0x0000 }, 93 { NAU8822_REG_MISC, 0x0020 }, 94 { NAU8822_REG_RIGHT_TIME_SLOT, 0x0000 }, 95 { NAU8822_REG_DEVICE_REVISION, 0x007f }, 96 { NAU8822_REG_DEVICE_ID, 0x001a }, 97 { NAU8822_REG_DAC_DITHER, 0x0114 }, 98 { NAU8822_REG_ALC_ENHANCE_1, 0x0000 }, 99 { NAU8822_REG_ALC_ENHANCE_2, 0x0000 }, 100 { NAU8822_REG_192KHZ_SAMPLING, 0x0008 }, 101 { NAU8822_REG_MISC_CONTROL, 0x0000 }, 102 { NAU8822_REG_INPUT_TIEOFF, 0x0000 }, 103 { NAU8822_REG_POWER_REDUCTION, 0x0000 }, 104 { NAU8822_REG_AGC_PEAK2PEAK, 0x0000 }, 105 { NAU8822_REG_AGC_PEAK_DETECT, 0x0000 }, 106 { NAU8822_REG_AUTOMUTE_CONTROL, 0x0000 }, 107 { NAU8822_REG_OUTPUT_TIEOFF, 0x0000 }, 108}; 109 110static bool nau8822_readable_reg(struct device *dev, unsigned int reg) 111{ 112 switch (reg) { 113 case NAU8822_REG_RESET ... NAU8822_REG_JACK_DETECT_CONTROL_1: 114 case NAU8822_REG_DAC_CONTROL ... NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME: 115 case NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME: 116 case NAU8822_REG_EQ1 ... NAU8822_REG_EQ5: 117 case NAU8822_REG_DAC_LIMITER_1 ... NAU8822_REG_DAC_LIMITER_2: 118 case NAU8822_REG_NOTCH_FILTER_1 ... NAU8822_REG_NOTCH_FILTER_4: 119 case NAU8822_REG_ALC_CONTROL_1 ...NAU8822_REG_PLL_K3: 120 case NAU8822_REG_3D_CONTROL: 121 case NAU8822_REG_RIGHT_SPEAKER_CONTROL: 122 case NAU8822_REG_INPUT_CONTROL ... NAU8822_REG_LEFT_ADC_BOOST_CONTROL: 123 case NAU8822_REG_RIGHT_ADC_BOOST_CONTROL ... NAU8822_REG_AUX1_MIXER: 124 case NAU8822_REG_POWER_MANAGEMENT_4 ... NAU8822_REG_DEVICE_ID: 125 case NAU8822_REG_DAC_DITHER: 126 case NAU8822_REG_ALC_ENHANCE_1 ... NAU8822_REG_MISC_CONTROL: 127 case NAU8822_REG_INPUT_TIEOFF ... NAU8822_REG_OUTPUT_TIEOFF: 128 return true; 129 default: 130 return false; 131 } 132} 133 134static bool nau8822_writeable_reg(struct device *dev, unsigned int reg) 135{ 136 switch (reg) { 137 case NAU8822_REG_RESET ... NAU8822_REG_JACK_DETECT_CONTROL_1: 138 case NAU8822_REG_DAC_CONTROL ... NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME: 139 case NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME: 140 case NAU8822_REG_EQ1 ... NAU8822_REG_EQ5: 141 case NAU8822_REG_DAC_LIMITER_1 ... NAU8822_REG_DAC_LIMITER_2: 142 case NAU8822_REG_NOTCH_FILTER_1 ... NAU8822_REG_NOTCH_FILTER_4: 143 case NAU8822_REG_ALC_CONTROL_1 ...NAU8822_REG_PLL_K3: 144 case NAU8822_REG_3D_CONTROL: 145 case NAU8822_REG_RIGHT_SPEAKER_CONTROL: 146 case NAU8822_REG_INPUT_CONTROL ... NAU8822_REG_LEFT_ADC_BOOST_CONTROL: 147 case NAU8822_REG_RIGHT_ADC_BOOST_CONTROL ... NAU8822_REG_AUX1_MIXER: 148 case NAU8822_REG_POWER_MANAGEMENT_4 ... NAU8822_REG_DEVICE_ID: 149 case NAU8822_REG_DAC_DITHER: 150 case NAU8822_REG_ALC_ENHANCE_1 ... NAU8822_REG_MISC_CONTROL: 151 case NAU8822_REG_INPUT_TIEOFF ... NAU8822_REG_OUTPUT_TIEOFF: 152 return true; 153 default: 154 return false; 155 } 156} 157 158static bool nau8822_volatile(struct device *dev, unsigned int reg) 159{ 160 switch (reg) { 161 case NAU8822_REG_RESET: 162 case NAU8822_REG_DEVICE_REVISION: 163 case NAU8822_REG_DEVICE_ID: 164 case NAU8822_REG_AGC_PEAK2PEAK: 165 case NAU8822_REG_AGC_PEAK_DETECT: 166 case NAU8822_REG_AUTOMUTE_CONTROL: 167 return true; 168 default: 169 return false; 170 } 171} 172 173/* The EQ parameters get function is to get the 5 band equalizer control. 174 * The regmap raw read can't work here because regmap doesn't provide 175 * value format for value width of 9 bits. Therefore, the driver reads data 176 * from cache and makes value format according to the endianness of 177 * bytes type control element. 178 */ 179static int nau8822_eq_get(struct snd_kcontrol *kcontrol, 180 struct snd_ctl_elem_value *ucontrol) 181{ 182 struct snd_soc_component *component = 183 snd_soc_kcontrol_component(kcontrol); 184 struct soc_bytes_ext *params = (void *)kcontrol->private_value; 185 int i, reg; 186 u16 reg_val, *val; 187 __be16 tmp; 188 189 val = (u16 *)ucontrol->value.bytes.data; 190 reg = NAU8822_REG_EQ1; 191 for (i = 0; i < params->max / sizeof(u16); i++) { 192 reg_val = snd_soc_component_read(component, reg + i); 193 /* conversion of 16-bit integers between native CPU format 194 * and big endian format 195 */ 196 tmp = cpu_to_be16(reg_val); 197 memcpy(val + i, &tmp, sizeof(tmp)); 198 } 199 200 return 0; 201} 202 203/* The EQ parameters put function is to make configuration of 5 band equalizer 204 * control. These configuration includes central frequency, equalizer gain, 205 * cut-off frequency, bandwidth control, and equalizer path. 206 * The regmap raw write can't work here because regmap doesn't provide 207 * register and value format for register with address 7 bits and value 9 bits. 208 * Therefore, the driver makes value format according to the endianness of 209 * bytes type control element and writes data to codec. 210 */ 211static int nau8822_eq_put(struct snd_kcontrol *kcontrol, 212 struct snd_ctl_elem_value *ucontrol) 213{ 214 struct snd_soc_component *component = 215 snd_soc_kcontrol_component(kcontrol); 216 struct soc_bytes_ext *params = (void *)kcontrol->private_value; 217 void *data; 218 u16 *val, value; 219 int i, reg, ret; 220 __be16 *tmp; 221 222 data = kmemdup(ucontrol->value.bytes.data, 223 params->max, GFP_KERNEL | GFP_DMA); 224 if (!data) 225 return -ENOMEM; 226 227 val = (u16 *)data; 228 reg = NAU8822_REG_EQ1; 229 for (i = 0; i < params->max / sizeof(u16); i++) { 230 /* conversion of 16-bit integers between native CPU format 231 * and big endian format 232 */ 233 tmp = (__be16 *)(val + i); 234 value = be16_to_cpup(tmp); 235 ret = snd_soc_component_write(component, reg + i, value); 236 if (ret) { 237 dev_err(component->dev, 238 "EQ configuration fail, register: %x ret: %d\n", 239 reg + i, ret); 240 kfree(data); 241 return ret; 242 } 243 } 244 kfree(data); 245 246 return 0; 247} 248 249static const char * const nau8822_companding[] = { 250 "Off", "NC", "u-law", "A-law"}; 251 252static const struct soc_enum nau8822_companding_adc_enum = 253 SOC_ENUM_SINGLE(NAU8822_REG_COMPANDING_CONTROL, NAU8822_ADCCM_SFT, 254 ARRAY_SIZE(nau8822_companding), nau8822_companding); 255 256static const struct soc_enum nau8822_companding_dac_enum = 257 SOC_ENUM_SINGLE(NAU8822_REG_COMPANDING_CONTROL, NAU8822_DACCM_SFT, 258 ARRAY_SIZE(nau8822_companding), nau8822_companding); 259 260static const char * const nau8822_eqmode[] = {"Capture", "Playback"}; 261 262static const struct soc_enum nau8822_eqmode_enum = 263 SOC_ENUM_SINGLE(NAU8822_REG_EQ1, NAU8822_EQM_SFT, 264 ARRAY_SIZE(nau8822_eqmode), nau8822_eqmode); 265 266static const char * const nau8822_alc1[] = {"Off", "Right", "Left", "Both"}; 267static const char * const nau8822_alc3[] = {"Normal", "Limiter"}; 268 269static const struct soc_enum nau8822_alc_enable_enum = 270 SOC_ENUM_SINGLE(NAU8822_REG_ALC_CONTROL_1, NAU8822_ALCEN_SFT, 271 ARRAY_SIZE(nau8822_alc1), nau8822_alc1); 272 273static const struct soc_enum nau8822_alc_mode_enum = 274 SOC_ENUM_SINGLE(NAU8822_REG_ALC_CONTROL_3, NAU8822_ALCM_SFT, 275 ARRAY_SIZE(nau8822_alc3), nau8822_alc3); 276 277static const DECLARE_TLV_DB_SCALE(digital_tlv, -12750, 50, 1); 278static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1200, 75, 0); 279static const DECLARE_TLV_DB_SCALE(spk_tlv, -5700, 100, 0); 280static const DECLARE_TLV_DB_SCALE(pga_boost_tlv, 0, 2000, 0); 281static const DECLARE_TLV_DB_SCALE(boost_tlv, -1500, 300, 1); 282static const DECLARE_TLV_DB_SCALE(limiter_tlv, 0, 100, 0); 283 284static const struct snd_kcontrol_new nau8822_snd_controls[] = { 285 SOC_ENUM("ADC Companding", nau8822_companding_adc_enum), 286 SOC_ENUM("DAC Companding", nau8822_companding_dac_enum), 287 288 SOC_ENUM("EQ Function", nau8822_eqmode_enum), 289 SND_SOC_BYTES_EXT("EQ Parameters", 10, 290 nau8822_eq_get, nau8822_eq_put), 291 292 SOC_DOUBLE("DAC Inversion Switch", 293 NAU8822_REG_DAC_CONTROL, 0, 1, 1, 0), 294 SOC_DOUBLE_R_TLV("PCM Volume", 295 NAU8822_REG_LEFT_DAC_DIGITAL_VOLUME, 296 NAU8822_REG_RIGHT_DAC_DIGITAL_VOLUME, 0, 255, 0, digital_tlv), 297 298 SOC_SINGLE("High Pass Filter Switch", 299 NAU8822_REG_ADC_CONTROL, 8, 1, 0), 300 SOC_SINGLE("High Pass Cut Off", 301 NAU8822_REG_ADC_CONTROL, 4, 7, 0), 302 303 SOC_DOUBLE("ADC Inversion Switch", 304 NAU8822_REG_ADC_CONTROL, 0, 1, 1, 0), 305 SOC_DOUBLE_R_TLV("ADC Volume", 306 NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME, 307 NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME, 0, 255, 0, digital_tlv), 308 309 SOC_SINGLE("DAC Limiter Switch", 310 NAU8822_REG_DAC_LIMITER_1, 8, 1, 0), 311 SOC_SINGLE("DAC Limiter Decay", 312 NAU8822_REG_DAC_LIMITER_1, 4, 15, 0), 313 SOC_SINGLE("DAC Limiter Attack", 314 NAU8822_REG_DAC_LIMITER_1, 0, 15, 0), 315 SOC_SINGLE("DAC Limiter Threshold", 316 NAU8822_REG_DAC_LIMITER_2, 4, 7, 0), 317 SOC_SINGLE_TLV("DAC Limiter Volume", 318 NAU8822_REG_DAC_LIMITER_2, 0, 12, 0, limiter_tlv), 319 320 SOC_ENUM("ALC Mode", nau8822_alc_mode_enum), 321 SOC_ENUM("ALC Enable Switch", nau8822_alc_enable_enum), 322 SOC_SINGLE("ALC Min Gain", 323 NAU8822_REG_ALC_CONTROL_1, 0, 7, 0), 324 SOC_SINGLE("ALC Max Gain", 325 NAU8822_REG_ALC_CONTROL_1, 3, 7, 0), 326 SOC_SINGLE("ALC Hold", 327 NAU8822_REG_ALC_CONTROL_2, 4, 10, 0), 328 SOC_SINGLE("ALC Target", 329 NAU8822_REG_ALC_CONTROL_2, 0, 15, 0), 330 SOC_SINGLE("ALC Decay", 331 NAU8822_REG_ALC_CONTROL_3, 4, 10, 0), 332 SOC_SINGLE("ALC Attack", 333 NAU8822_REG_ALC_CONTROL_3, 0, 10, 0), 334 SOC_SINGLE("ALC Noise Gate Switch", 335 NAU8822_REG_NOISE_GATE, 3, 1, 0), 336 SOC_SINGLE("ALC Noise Gate Threshold", 337 NAU8822_REG_NOISE_GATE, 0, 7, 0), 338 339 SOC_DOUBLE_R("PGA ZC Switch", 340 NAU8822_REG_LEFT_INP_PGA_CONTROL, 341 NAU8822_REG_RIGHT_INP_PGA_CONTROL, 342 7, 1, 0), 343 SOC_DOUBLE_R_TLV("PGA Volume", 344 NAU8822_REG_LEFT_INP_PGA_CONTROL, 345 NAU8822_REG_RIGHT_INP_PGA_CONTROL, 0, 63, 0, inpga_tlv), 346 347 SOC_DOUBLE_R("Headphone ZC Switch", 348 NAU8822_REG_LHP_VOLUME, 349 NAU8822_REG_RHP_VOLUME, 7, 1, 0), 350 SOC_DOUBLE_R("Headphone Playback Switch", 351 NAU8822_REG_LHP_VOLUME, 352 NAU8822_REG_RHP_VOLUME, 6, 1, 1), 353 SOC_DOUBLE_R_TLV("Headphone Volume", 354 NAU8822_REG_LHP_VOLUME, 355 NAU8822_REG_RHP_VOLUME, 0, 63, 0, spk_tlv), 356 357 SOC_DOUBLE_R("Speaker ZC Switch", 358 NAU8822_REG_LSPKOUT_VOLUME, 359 NAU8822_REG_RSPKOUT_VOLUME, 7, 1, 0), 360 SOC_DOUBLE_R("Speaker Playback Switch", 361 NAU8822_REG_LSPKOUT_VOLUME, 362 NAU8822_REG_RSPKOUT_VOLUME, 6, 1, 1), 363 SOC_DOUBLE_R_TLV("Speaker Volume", 364 NAU8822_REG_LSPKOUT_VOLUME, 365 NAU8822_REG_RSPKOUT_VOLUME, 0, 63, 0, spk_tlv), 366 367 SOC_DOUBLE_R("AUXOUT Playback Switch", 368 NAU8822_REG_AUX2_MIXER, 369 NAU8822_REG_AUX1_MIXER, 6, 1, 1), 370 371 SOC_DOUBLE_R_TLV("PGA Boost Volume", 372 NAU8822_REG_LEFT_ADC_BOOST_CONTROL, 373 NAU8822_REG_RIGHT_ADC_BOOST_CONTROL, 8, 1, 0, pga_boost_tlv), 374 SOC_DOUBLE_R_TLV("L2/R2 Boost Volume", 375 NAU8822_REG_LEFT_ADC_BOOST_CONTROL, 376 NAU8822_REG_RIGHT_ADC_BOOST_CONTROL, 4, 7, 0, boost_tlv), 377 SOC_DOUBLE_R_TLV("Aux Boost Volume", 378 NAU8822_REG_LEFT_ADC_BOOST_CONTROL, 379 NAU8822_REG_RIGHT_ADC_BOOST_CONTROL, 0, 7, 0, boost_tlv), 380 381 SOC_SINGLE("DAC 128x Oversampling Switch", 382 NAU8822_REG_DAC_CONTROL, 5, 1, 0), 383 SOC_SINGLE("ADC 128x Oversampling Switch", 384 NAU8822_REG_ADC_CONTROL, 5, 1, 0), 385}; 386 387/* LMAIN and RMAIN Mixer */ 388static const struct snd_kcontrol_new nau8822_left_out_mixer[] = { 389 SOC_DAPM_SINGLE("LINMIX Switch", 390 NAU8822_REG_LEFT_MIXER_CONTROL, 1, 1, 0), 391 SOC_DAPM_SINGLE("LAUX Switch", 392 NAU8822_REG_LEFT_MIXER_CONTROL, 5, 1, 0), 393 SOC_DAPM_SINGLE("LDAC Switch", 394 NAU8822_REG_LEFT_MIXER_CONTROL, 0, 1, 0), 395 SOC_DAPM_SINGLE("RDAC Switch", 396 NAU8822_REG_OUTPUT_CONTROL, 5, 1, 0), 397}; 398 399static const struct snd_kcontrol_new nau8822_right_out_mixer[] = { 400 SOC_DAPM_SINGLE("RINMIX Switch", 401 NAU8822_REG_RIGHT_MIXER_CONTROL, 1, 1, 0), 402 SOC_DAPM_SINGLE("RAUX Switch", 403 NAU8822_REG_RIGHT_MIXER_CONTROL, 5, 1, 0), 404 SOC_DAPM_SINGLE("RDAC Switch", 405 NAU8822_REG_RIGHT_MIXER_CONTROL, 0, 1, 0), 406 SOC_DAPM_SINGLE("LDAC Switch", 407 NAU8822_REG_OUTPUT_CONTROL, 6, 1, 0), 408}; 409 410/* AUX1 and AUX2 Mixer */ 411static const struct snd_kcontrol_new nau8822_auxout1_mixer[] = { 412 SOC_DAPM_SINGLE("RDAC Switch", NAU8822_REG_AUX1_MIXER, 0, 1, 0), 413 SOC_DAPM_SINGLE("RMIX Switch", NAU8822_REG_AUX1_MIXER, 1, 1, 0), 414 SOC_DAPM_SINGLE("RINMIX Switch", NAU8822_REG_AUX1_MIXER, 2, 1, 0), 415 SOC_DAPM_SINGLE("LDAC Switch", NAU8822_REG_AUX1_MIXER, 3, 1, 0), 416 SOC_DAPM_SINGLE("LMIX Switch", NAU8822_REG_AUX1_MIXER, 4, 1, 0), 417}; 418 419static const struct snd_kcontrol_new nau8822_auxout2_mixer[] = { 420 SOC_DAPM_SINGLE("LDAC Switch", NAU8822_REG_AUX2_MIXER, 0, 1, 0), 421 SOC_DAPM_SINGLE("LMIX Switch", NAU8822_REG_AUX2_MIXER, 1, 1, 0), 422 SOC_DAPM_SINGLE("LINMIX Switch", NAU8822_REG_AUX2_MIXER, 2, 1, 0), 423 SOC_DAPM_SINGLE("AUX1MIX Output Switch", 424 NAU8822_REG_AUX2_MIXER, 3, 1, 0), 425}; 426 427/* Input PGA */ 428static const struct snd_kcontrol_new nau8822_left_input_mixer[] = { 429 SOC_DAPM_SINGLE("L2 Switch", NAU8822_REG_INPUT_CONTROL, 2, 1, 0), 430 SOC_DAPM_SINGLE("MicN Switch", NAU8822_REG_INPUT_CONTROL, 1, 1, 0), 431 SOC_DAPM_SINGLE("MicP Switch", NAU8822_REG_INPUT_CONTROL, 0, 1, 0), 432}; 433static const struct snd_kcontrol_new nau8822_right_input_mixer[] = { 434 SOC_DAPM_SINGLE("R2 Switch", NAU8822_REG_INPUT_CONTROL, 6, 1, 0), 435 SOC_DAPM_SINGLE("MicN Switch", NAU8822_REG_INPUT_CONTROL, 5, 1, 0), 436 SOC_DAPM_SINGLE("MicP Switch", NAU8822_REG_INPUT_CONTROL, 4, 1, 0), 437}; 438 439/* Loopback Switch */ 440static const struct snd_kcontrol_new nau8822_loopback = 441 SOC_DAPM_SINGLE("Switch", NAU8822_REG_COMPANDING_CONTROL, 442 NAU8822_ADDAP_SFT, 1, 0); 443 444static int check_mclk_select_pll(struct snd_soc_dapm_widget *source, 445 struct snd_soc_dapm_widget *sink) 446{ 447 struct snd_soc_component *component = 448 snd_soc_dapm_to_component(source->dapm); 449 unsigned int value; 450 451 value = snd_soc_component_read(component, NAU8822_REG_CLOCKING); 452 453 return (value & NAU8822_CLKM_MASK); 454} 455 456static const struct snd_soc_dapm_widget nau8822_dapm_widgets[] = { 457 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", 458 NAU8822_REG_POWER_MANAGEMENT_3, 0, 0), 459 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", 460 NAU8822_REG_POWER_MANAGEMENT_3, 1, 0), 461 SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture", 462 NAU8822_REG_POWER_MANAGEMENT_2, 0, 0), 463 SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture", 464 NAU8822_REG_POWER_MANAGEMENT_2, 1, 0), 465 466 SOC_MIXER_ARRAY("Left Output Mixer", 467 NAU8822_REG_POWER_MANAGEMENT_3, 2, 0, nau8822_left_out_mixer), 468 SOC_MIXER_ARRAY("Right Output Mixer", 469 NAU8822_REG_POWER_MANAGEMENT_3, 3, 0, nau8822_right_out_mixer), 470 SOC_MIXER_ARRAY("AUX1 Output Mixer", 471 NAU8822_REG_POWER_MANAGEMENT_1, 7, 0, nau8822_auxout1_mixer), 472 SOC_MIXER_ARRAY("AUX2 Output Mixer", 473 NAU8822_REG_POWER_MANAGEMENT_1, 6, 0, nau8822_auxout2_mixer), 474 475 SOC_MIXER_ARRAY("Left Input Mixer", 476 NAU8822_REG_POWER_MANAGEMENT_2, 477 2, 0, nau8822_left_input_mixer), 478 SOC_MIXER_ARRAY("Right Input Mixer", 479 NAU8822_REG_POWER_MANAGEMENT_2, 480 3, 0, nau8822_right_input_mixer), 481 482 SND_SOC_DAPM_PGA("Left Boost Mixer", 483 NAU8822_REG_POWER_MANAGEMENT_2, 4, 0, NULL, 0), 484 SND_SOC_DAPM_PGA("Right Boost Mixer", 485 NAU8822_REG_POWER_MANAGEMENT_2, 5, 0, NULL, 0), 486 487 SND_SOC_DAPM_PGA("Left Capture PGA", 488 NAU8822_REG_LEFT_INP_PGA_CONTROL, 6, 1, NULL, 0), 489 SND_SOC_DAPM_PGA("Right Capture PGA", 490 NAU8822_REG_RIGHT_INP_PGA_CONTROL, 6, 1, NULL, 0), 491 492 SND_SOC_DAPM_PGA("Left Headphone Out", 493 NAU8822_REG_POWER_MANAGEMENT_2, 7, 0, NULL, 0), 494 SND_SOC_DAPM_PGA("Right Headphone Out", 495 NAU8822_REG_POWER_MANAGEMENT_2, 8, 0, NULL, 0), 496 497 SND_SOC_DAPM_PGA("Left Speaker Out", 498 NAU8822_REG_POWER_MANAGEMENT_3, 6, 0, NULL, 0), 499 SND_SOC_DAPM_PGA("Right Speaker Out", 500 NAU8822_REG_POWER_MANAGEMENT_3, 5, 0, NULL, 0), 501 502 SND_SOC_DAPM_PGA("AUX1 Out", 503 NAU8822_REG_POWER_MANAGEMENT_3, 8, 0, NULL, 0), 504 SND_SOC_DAPM_PGA("AUX2 Out", 505 NAU8822_REG_POWER_MANAGEMENT_3, 7, 0, NULL, 0), 506 507 SND_SOC_DAPM_SUPPLY("Mic Bias", 508 NAU8822_REG_POWER_MANAGEMENT_1, 4, 0, NULL, 0), 509 SND_SOC_DAPM_SUPPLY("PLL", 510 NAU8822_REG_POWER_MANAGEMENT_1, 5, 0, NULL, 0), 511 512 SND_SOC_DAPM_SWITCH("Digital Loopback", SND_SOC_NOPM, 0, 0, 513 &nau8822_loopback), 514 515 SND_SOC_DAPM_INPUT("LMICN"), 516 SND_SOC_DAPM_INPUT("LMICP"), 517 SND_SOC_DAPM_INPUT("RMICN"), 518 SND_SOC_DAPM_INPUT("RMICP"), 519 SND_SOC_DAPM_INPUT("LAUX"), 520 SND_SOC_DAPM_INPUT("RAUX"), 521 SND_SOC_DAPM_INPUT("L2"), 522 SND_SOC_DAPM_INPUT("R2"), 523 SND_SOC_DAPM_OUTPUT("LHP"), 524 SND_SOC_DAPM_OUTPUT("RHP"), 525 SND_SOC_DAPM_OUTPUT("LSPK"), 526 SND_SOC_DAPM_OUTPUT("RSPK"), 527 SND_SOC_DAPM_OUTPUT("AUXOUT1"), 528 SND_SOC_DAPM_OUTPUT("AUXOUT2"), 529}; 530 531static const struct snd_soc_dapm_route nau8822_dapm_routes[] = { 532 {"Right DAC", NULL, "PLL", check_mclk_select_pll}, 533 {"Left DAC", NULL, "PLL", check_mclk_select_pll}, 534 535 /* LMAIN and RMAIN Mixer */ 536 {"Right Output Mixer", "LDAC Switch", "Left DAC"}, 537 {"Right Output Mixer", "RDAC Switch", "Right DAC"}, 538 {"Right Output Mixer", "RAUX Switch", "RAUX"}, 539 {"Right Output Mixer", "RINMIX Switch", "Right Boost Mixer"}, 540 541 {"Left Output Mixer", "LDAC Switch", "Left DAC"}, 542 {"Left Output Mixer", "RDAC Switch", "Right DAC"}, 543 {"Left Output Mixer", "LAUX Switch", "LAUX"}, 544 {"Left Output Mixer", "LINMIX Switch", "Left Boost Mixer"}, 545 546 /* AUX1 and AUX2 Mixer */ 547 {"AUX1 Output Mixer", "RDAC Switch", "Right DAC"}, 548 {"AUX1 Output Mixer", "RMIX Switch", "Right Output Mixer"}, 549 {"AUX1 Output Mixer", "RINMIX Switch", "Right Boost Mixer"}, 550 {"AUX1 Output Mixer", "LDAC Switch", "Left DAC"}, 551 {"AUX1 Output Mixer", "LMIX Switch", "Left Output Mixer"}, 552 553 {"AUX2 Output Mixer", "LDAC Switch", "Left DAC"}, 554 {"AUX2 Output Mixer", "LMIX Switch", "Left Output Mixer"}, 555 {"AUX2 Output Mixer", "LINMIX Switch", "Left Boost Mixer"}, 556 {"AUX2 Output Mixer", "AUX1MIX Output Switch", "AUX1 Output Mixer"}, 557 558 /* Outputs */ 559 {"Right Headphone Out", NULL, "Right Output Mixer"}, 560 {"RHP", NULL, "Right Headphone Out"}, 561 562 {"Left Headphone Out", NULL, "Left Output Mixer"}, 563 {"LHP", NULL, "Left Headphone Out"}, 564 565 {"Right Speaker Out", NULL, "Right Output Mixer"}, 566 {"RSPK", NULL, "Right Speaker Out"}, 567 568 {"Left Speaker Out", NULL, "Left Output Mixer"}, 569 {"LSPK", NULL, "Left Speaker Out"}, 570 571 {"AUX1 Out", NULL, "AUX1 Output Mixer"}, 572 {"AUX2 Out", NULL, "AUX2 Output Mixer"}, 573 {"AUXOUT1", NULL, "AUX1 Out"}, 574 {"AUXOUT2", NULL, "AUX2 Out"}, 575 576 /* Boost Mixer */ 577 {"Right ADC", NULL, "PLL", check_mclk_select_pll}, 578 {"Left ADC", NULL, "PLL", check_mclk_select_pll}, 579 580 {"Right ADC", NULL, "Right Boost Mixer"}, 581 582 {"Right Boost Mixer", NULL, "RAUX"}, 583 {"Right Boost Mixer", NULL, "Right Capture PGA"}, 584 {"Right Boost Mixer", NULL, "R2"}, 585 586 {"Left ADC", NULL, "Left Boost Mixer"}, 587 588 {"Left Boost Mixer", NULL, "LAUX"}, 589 {"Left Boost Mixer", NULL, "Left Capture PGA"}, 590 {"Left Boost Mixer", NULL, "L2"}, 591 592 /* Input PGA */ 593 {"Right Capture PGA", NULL, "Right Input Mixer"}, 594 {"Left Capture PGA", NULL, "Left Input Mixer"}, 595 596 /* Enable Microphone Power */ 597 {"Right Capture PGA", NULL, "Mic Bias"}, 598 {"Left Capture PGA", NULL, "Mic Bias"}, 599 600 {"Right Input Mixer", "R2 Switch", "R2"}, 601 {"Right Input Mixer", "MicN Switch", "RMICN"}, 602 {"Right Input Mixer", "MicP Switch", "RMICP"}, 603 604 {"Left Input Mixer", "L2 Switch", "L2"}, 605 {"Left Input Mixer", "MicN Switch", "LMICN"}, 606 {"Left Input Mixer", "MicP Switch", "LMICP"}, 607 608 /* Digital Loopback */ 609 {"Digital Loopback", "Switch", "Left ADC"}, 610 {"Digital Loopback", "Switch", "Right ADC"}, 611 {"Left DAC", NULL, "Digital Loopback"}, 612 {"Right DAC", NULL, "Digital Loopback"}, 613}; 614 615static int nau8822_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id, 616 unsigned int freq, int dir) 617{ 618 struct snd_soc_component *component = dai->component; 619 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component); 620 621 nau8822->div_id = clk_id; 622 nau8822->sysclk = freq; 623 dev_dbg(component->dev, "master sysclk %dHz, source %s\n", freq, 624 clk_id == NAU8822_CLK_PLL ? "PLL" : "MCLK"); 625 626 return 0; 627} 628 629static int nau8822_calc_pll(unsigned int pll_in, unsigned int fs, 630 struct nau8822_pll *pll_param) 631{ 632 u64 f2, f2_max, pll_ratio; 633 int i, scal_sel; 634 635 if (pll_in > NAU_PLL_REF_MAX || pll_in < NAU_PLL_REF_MIN) 636 return -EINVAL; 637 f2_max = 0; 638 scal_sel = ARRAY_SIZE(nau8822_mclk_scaler); 639 640 for (i = 0; i < scal_sel; i++) { 641 f2 = 256 * fs * 4 * nau8822_mclk_scaler[i] / 10; 642 if (f2 > NAU_PLL_FREQ_MIN && f2 < NAU_PLL_FREQ_MAX && 643 f2_max < f2) { 644 f2_max = f2; 645 scal_sel = i; 646 } 647 } 648 649 if (ARRAY_SIZE(nau8822_mclk_scaler) == scal_sel) 650 return -EINVAL; 651 pll_param->mclk_scaler = scal_sel; 652 f2 = f2_max; 653 654 /* Calculate the PLL 4-bit integer input and the PLL 24-bit fractional 655 * input; round up the 24+4bit. 656 */ 657 pll_ratio = div_u64(f2 << 28, pll_in); 658 pll_param->pre_factor = 0; 659 if (((pll_ratio >> 28) & 0xF) < NAU_PLL_OPTOP_MIN) { 660 pll_ratio <<= 1; 661 pll_param->pre_factor = 1; 662 } 663 pll_param->pll_int = (pll_ratio >> 28) & 0xF; 664 pll_param->pll_frac = ((pll_ratio & 0xFFFFFFF) >> 4); 665 666 return 0; 667} 668 669static int nau8822_config_clkdiv(struct snd_soc_dai *dai, int div, int rate) 670{ 671 struct snd_soc_component *component = dai->component; 672 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component); 673 struct nau8822_pll *pll = &nau8822->pll; 674 int i, sclk, imclk; 675 676 switch (nau8822->div_id) { 677 case NAU8822_CLK_MCLK: 678 /* Configure the master clock prescaler div to make system 679 * clock to approximate the internal master clock (IMCLK); 680 * and large or equal to IMCLK. 681 */ 682 div = 0; 683 imclk = rate * 256; 684 for (i = 1; i < ARRAY_SIZE(nau8822_mclk_scaler); i++) { 685 sclk = (nau8822->sysclk * 10) / nau8822_mclk_scaler[i]; 686 if (sclk < imclk) 687 break; 688 div = i; 689 } 690 dev_dbg(component->dev, "master clock prescaler %x for fs %d\n", 691 div, rate); 692 693 /* master clock from MCLK and disable PLL */ 694 snd_soc_component_update_bits(component, 695 NAU8822_REG_CLOCKING, NAU8822_MCLKSEL_MASK, 696 (div << NAU8822_MCLKSEL_SFT)); 697 snd_soc_component_update_bits(component, 698 NAU8822_REG_CLOCKING, NAU8822_CLKM_MASK, 699 NAU8822_CLKM_MCLK); 700 break; 701 702 case NAU8822_CLK_PLL: 703 /* master clock from PLL and enable PLL */ 704 if (pll->mclk_scaler != div) { 705 dev_err(component->dev, 706 "master clock prescaler not meet PLL parameters\n"); 707 return -EINVAL; 708 } 709 snd_soc_component_update_bits(component, 710 NAU8822_REG_CLOCKING, NAU8822_MCLKSEL_MASK, 711 (div << NAU8822_MCLKSEL_SFT)); 712 snd_soc_component_update_bits(component, 713 NAU8822_REG_CLOCKING, NAU8822_CLKM_MASK, 714 NAU8822_CLKM_PLL); 715 break; 716 717 default: 718 return -EINVAL; 719 } 720 721 return 0; 722} 723 724static int nau8822_set_pll(struct snd_soc_dai *dai, int pll_id, int source, 725 unsigned int freq_in, unsigned int freq_out) 726{ 727 struct snd_soc_component *component = dai->component; 728 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component); 729 struct nau8822_pll *pll_param = &nau8822->pll; 730 int ret, fs; 731 732 if (freq_in == pll_param->freq_in && 733 freq_out == pll_param->freq_out) 734 return 0; 735 736 if (freq_out == 0) { 737 dev_dbg(component->dev, "PLL disabled\n"); 738 snd_soc_component_update_bits(component, 739 NAU8822_REG_POWER_MANAGEMENT_1, NAU8822_PLL_EN_MASK, NAU8822_PLL_OFF); 740 return 0; 741 } 742 743 fs = freq_out / 256; 744 745 ret = nau8822_calc_pll(freq_in, fs, pll_param); 746 if (ret < 0) { 747 dev_err(component->dev, "Unsupported input clock %d\n", 748 freq_in); 749 return ret; 750 } 751 752 dev_info(component->dev, 753 "pll_int=%x pll_frac=%x mclk_scaler=%x pre_factor=%x\n", 754 pll_param->pll_int, pll_param->pll_frac, 755 pll_param->mclk_scaler, pll_param->pre_factor); 756 757 snd_soc_component_update_bits(component, 758 NAU8822_REG_POWER_MANAGEMENT_1, NAU8822_PLL_EN_MASK, NAU8822_PLL_OFF); 759 snd_soc_component_update_bits(component, 760 NAU8822_REG_PLL_N, NAU8822_PLLMCLK_DIV2 | NAU8822_PLLN_MASK, 761 (pll_param->pre_factor ? NAU8822_PLLMCLK_DIV2 : 0) | 762 pll_param->pll_int); 763 snd_soc_component_write(component, 764 NAU8822_REG_PLL_K1, (pll_param->pll_frac >> NAU8822_PLLK1_SFT) & 765 NAU8822_PLLK1_MASK); 766 snd_soc_component_write(component, 767 NAU8822_REG_PLL_K2, (pll_param->pll_frac >> NAU8822_PLLK2_SFT) & 768 NAU8822_PLLK2_MASK); 769 snd_soc_component_write(component, 770 NAU8822_REG_PLL_K3, pll_param->pll_frac & NAU8822_PLLK3_MASK); 771 snd_soc_component_update_bits(component, 772 NAU8822_REG_CLOCKING, NAU8822_MCLKSEL_MASK, 773 pll_param->mclk_scaler << NAU8822_MCLKSEL_SFT); 774 snd_soc_component_update_bits(component, 775 NAU8822_REG_CLOCKING, NAU8822_CLKM_MASK, NAU8822_CLKM_PLL); 776 snd_soc_component_update_bits(component, 777 NAU8822_REG_POWER_MANAGEMENT_1, NAU8822_PLL_EN_MASK, NAU8822_PLL_ON); 778 779 pll_param->freq_in = freq_in; 780 pll_param->freq_out = freq_out; 781 782 return 0; 783} 784 785static int nau8822_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) 786{ 787 struct snd_soc_component *component = dai->component; 788 u16 ctrl1_val = 0, ctrl2_val = 0; 789 790 dev_dbg(component->dev, "%s\n", __func__); 791 792 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 793 case SND_SOC_DAIFMT_CBM_CFM: 794 ctrl2_val |= 1; 795 break; 796 case SND_SOC_DAIFMT_CBS_CFS: 797 ctrl2_val &= ~1; 798 break; 799 default: 800 return -EINVAL; 801 } 802 803 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 804 case SND_SOC_DAIFMT_I2S: 805 ctrl1_val |= 0x10; 806 break; 807 case SND_SOC_DAIFMT_RIGHT_J: 808 break; 809 case SND_SOC_DAIFMT_LEFT_J: 810 ctrl1_val |= 0x8; 811 break; 812 case SND_SOC_DAIFMT_DSP_A: 813 ctrl1_val |= 0x18; 814 break; 815 default: 816 return -EINVAL; 817 } 818 819 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 820 case SND_SOC_DAIFMT_NB_NF: 821 break; 822 case SND_SOC_DAIFMT_IB_IF: 823 ctrl1_val |= 0x180; 824 break; 825 case SND_SOC_DAIFMT_IB_NF: 826 ctrl1_val |= 0x100; 827 break; 828 case SND_SOC_DAIFMT_NB_IF: 829 ctrl1_val |= 0x80; 830 break; 831 default: 832 return -EINVAL; 833 } 834 835 snd_soc_component_update_bits(component, 836 NAU8822_REG_AUDIO_INTERFACE, 837 NAU8822_AIFMT_MASK | NAU8822_LRP_MASK | NAU8822_BCLKP_MASK, 838 ctrl1_val); 839 snd_soc_component_update_bits(component, 840 NAU8822_REG_CLOCKING, NAU8822_CLKIOEN_MASK, ctrl2_val); 841 842 return 0; 843} 844 845static int nau8822_hw_params(struct snd_pcm_substream *substream, 846 struct snd_pcm_hw_params *params, 847 struct snd_soc_dai *dai) 848{ 849 struct snd_soc_component *component = dai->component; 850 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component); 851 int val_len = 0, val_rate = 0; 852 unsigned int ctrl_val, bclk_fs, bclk_div; 853 854 /* make BCLK and LRC divide configuration if the codec as master. */ 855 ctrl_val = snd_soc_component_read(component, NAU8822_REG_CLOCKING); 856 if (ctrl_val & NAU8822_CLK_MASTER) { 857 /* get the bclk and fs ratio */ 858 bclk_fs = snd_soc_params_to_bclk(params) / params_rate(params); 859 if (bclk_fs <= 32) 860 bclk_div = NAU8822_BCLKDIV_8; 861 else if (bclk_fs <= 64) 862 bclk_div = NAU8822_BCLKDIV_4; 863 else if (bclk_fs <= 128) 864 bclk_div = NAU8822_BCLKDIV_2; 865 else 866 return -EINVAL; 867 snd_soc_component_update_bits(component, NAU8822_REG_CLOCKING, 868 NAU8822_BCLKSEL_MASK, bclk_div); 869 } 870 871 switch (params_format(params)) { 872 case SNDRV_PCM_FORMAT_S16_LE: 873 break; 874 case SNDRV_PCM_FORMAT_S20_3LE: 875 val_len |= NAU8822_WLEN_20; 876 break; 877 case SNDRV_PCM_FORMAT_S24_LE: 878 val_len |= NAU8822_WLEN_24; 879 break; 880 case SNDRV_PCM_FORMAT_S32_LE: 881 val_len |= NAU8822_WLEN_32; 882 break; 883 default: 884 return -EINVAL; 885 } 886 887 switch (params_rate(params)) { 888 case 8000: 889 val_rate |= NAU8822_SMPLR_8K; 890 break; 891 case 11025: 892 val_rate |= NAU8822_SMPLR_12K; 893 break; 894 case 16000: 895 val_rate |= NAU8822_SMPLR_16K; 896 break; 897 case 22050: 898 val_rate |= NAU8822_SMPLR_24K; 899 break; 900 case 32000: 901 val_rate |= NAU8822_SMPLR_32K; 902 break; 903 case 44100: 904 case 48000: 905 break; 906 default: 907 return -EINVAL; 908 } 909 910 snd_soc_component_update_bits(component, 911 NAU8822_REG_AUDIO_INTERFACE, NAU8822_WLEN_MASK, val_len); 912 snd_soc_component_update_bits(component, 913 NAU8822_REG_ADDITIONAL_CONTROL, NAU8822_SMPLR_MASK, val_rate); 914 915 /* If the master clock is from MCLK, provide the runtime FS for driver 916 * to get the master clock prescaler configuration. 917 */ 918 if (nau8822->div_id == NAU8822_CLK_MCLK) 919 nau8822_config_clkdiv(dai, 0, params_rate(params)); 920 921 return 0; 922} 923 924static int nau8822_mute(struct snd_soc_dai *dai, int mute, int direction) 925{ 926 struct snd_soc_component *component = dai->component; 927 928 dev_dbg(component->dev, "%s: %d\n", __func__, mute); 929 930 if (mute) 931 snd_soc_component_update_bits(component, 932 NAU8822_REG_DAC_CONTROL, 0x40, 0x40); 933 else 934 snd_soc_component_update_bits(component, 935 NAU8822_REG_DAC_CONTROL, 0x40, 0); 936 937 return 0; 938} 939 940static int nau8822_set_bias_level(struct snd_soc_component *component, 941 enum snd_soc_bias_level level) 942{ 943 switch (level) { 944 case SND_SOC_BIAS_ON: 945 case SND_SOC_BIAS_PREPARE: 946 snd_soc_component_update_bits(component, 947 NAU8822_REG_POWER_MANAGEMENT_1, 948 NAU8822_REFIMP_MASK, NAU8822_REFIMP_80K); 949 break; 950 951 case SND_SOC_BIAS_STANDBY: 952 snd_soc_component_update_bits(component, 953 NAU8822_REG_POWER_MANAGEMENT_1, 954 NAU8822_IOBUF_EN | NAU8822_ABIAS_EN, 955 NAU8822_IOBUF_EN | NAU8822_ABIAS_EN); 956 957 if (snd_soc_component_get_bias_level(component) == 958 SND_SOC_BIAS_OFF) { 959 snd_soc_component_update_bits(component, 960 NAU8822_REG_POWER_MANAGEMENT_1, 961 NAU8822_REFIMP_MASK, NAU8822_REFIMP_3K); 962 mdelay(100); 963 } 964 snd_soc_component_update_bits(component, 965 NAU8822_REG_POWER_MANAGEMENT_1, 966 NAU8822_REFIMP_MASK, NAU8822_REFIMP_300K); 967 break; 968 969 case SND_SOC_BIAS_OFF: 970 snd_soc_component_write(component, 971 NAU8822_REG_POWER_MANAGEMENT_1, 0); 972 snd_soc_component_write(component, 973 NAU8822_REG_POWER_MANAGEMENT_2, 0); 974 snd_soc_component_write(component, 975 NAU8822_REG_POWER_MANAGEMENT_3, 0); 976 break; 977 } 978 979 dev_dbg(component->dev, "%s: %d\n", __func__, level); 980 981 return 0; 982} 983 984#define NAU8822_RATES (SNDRV_PCM_RATE_8000_48000) 985 986#define NAU8822_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ 987 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) 988 989static const struct snd_soc_dai_ops nau8822_dai_ops = { 990 .hw_params = nau8822_hw_params, 991 .mute_stream = nau8822_mute, 992 .set_fmt = nau8822_set_dai_fmt, 993 .set_sysclk = nau8822_set_dai_sysclk, 994 .set_pll = nau8822_set_pll, 995 .no_capture_mute = 1, 996}; 997 998static struct snd_soc_dai_driver nau8822_dai = { 999 .name = "nau8822-hifi", 1000 .playback = { 1001 .stream_name = "Playback", 1002 .channels_min = 1, 1003 .channels_max = 2, 1004 .rates = NAU8822_RATES, 1005 .formats = NAU8822_FORMATS, 1006 }, 1007 .capture = { 1008 .stream_name = "Capture", 1009 .channels_min = 1, 1010 .channels_max = 2, 1011 .rates = NAU8822_RATES, 1012 .formats = NAU8822_FORMATS, 1013 }, 1014 .ops = &nau8822_dai_ops, 1015 .symmetric_rate = 1, 1016}; 1017 1018static int nau8822_suspend(struct snd_soc_component *component) 1019{ 1020 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component); 1021 1022 snd_soc_component_force_bias_level(component, SND_SOC_BIAS_OFF); 1023 1024 regcache_mark_dirty(nau8822->regmap); 1025 1026 return 0; 1027} 1028 1029static int nau8822_resume(struct snd_soc_component *component) 1030{ 1031 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component); 1032 1033 regcache_sync(nau8822->regmap); 1034 1035 snd_soc_component_force_bias_level(component, SND_SOC_BIAS_STANDBY); 1036 1037 return 0; 1038} 1039 1040/* 1041 * These registers contain an "update" bit - bit 8. This means, for example, 1042 * that one can write new DAC digital volume for both channels, but only when 1043 * the update bit is set, will also the volume be updated - simultaneously for 1044 * both channels. 1045 */ 1046static const int update_reg[] = { 1047 NAU8822_REG_LEFT_DAC_DIGITAL_VOLUME, 1048 NAU8822_REG_RIGHT_DAC_DIGITAL_VOLUME, 1049 NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME, 1050 NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME, 1051 NAU8822_REG_LEFT_INP_PGA_CONTROL, 1052 NAU8822_REG_RIGHT_INP_PGA_CONTROL, 1053 NAU8822_REG_LHP_VOLUME, 1054 NAU8822_REG_RHP_VOLUME, 1055 NAU8822_REG_LSPKOUT_VOLUME, 1056 NAU8822_REG_RSPKOUT_VOLUME, 1057}; 1058 1059static int nau8822_probe(struct snd_soc_component *component) 1060{ 1061 int i; 1062 struct device_node *of_node = component->dev->of_node; 1063 1064 /* 1065 * Set the update bit in all registers, that have one. This way all 1066 * writes to those registers will also cause the update bit to be 1067 * written. 1068 */ 1069 for (i = 0; i < ARRAY_SIZE(update_reg); i++) 1070 snd_soc_component_update_bits(component, 1071 update_reg[i], 0x100, 0x100); 1072 1073 /* Check property to configure the two loudspeaker outputs as 1074 * a single Bridge Tied Load output 1075 */ 1076 if (of_property_read_bool(of_node, "nuvoton,spk-btl")) 1077 snd_soc_component_update_bits(component, 1078 NAU8822_REG_RIGHT_SPEAKER_CONTROL, 1079 NAU8822_RSUBBYP, NAU8822_RSUBBYP); 1080 1081 return 0; 1082} 1083 1084static const struct snd_soc_component_driver soc_component_dev_nau8822 = { 1085 .probe = nau8822_probe, 1086 .suspend = nau8822_suspend, 1087 .resume = nau8822_resume, 1088 .set_bias_level = nau8822_set_bias_level, 1089 .controls = nau8822_snd_controls, 1090 .num_controls = ARRAY_SIZE(nau8822_snd_controls), 1091 .dapm_widgets = nau8822_dapm_widgets, 1092 .num_dapm_widgets = ARRAY_SIZE(nau8822_dapm_widgets), 1093 .dapm_routes = nau8822_dapm_routes, 1094 .num_dapm_routes = ARRAY_SIZE(nau8822_dapm_routes), 1095 .idle_bias_on = 1, 1096 .use_pmdown_time = 1, 1097 .endianness = 1, 1098}; 1099 1100static const struct regmap_config nau8822_regmap_config = { 1101 .reg_bits = 7, 1102 .val_bits = 9, 1103 1104 .max_register = NAU8822_REG_MAX_REGISTER, 1105 .volatile_reg = nau8822_volatile, 1106 1107 .readable_reg = nau8822_readable_reg, 1108 .writeable_reg = nau8822_writeable_reg, 1109 1110 .cache_type = REGCACHE_RBTREE, 1111 .reg_defaults = nau8822_reg_defaults, 1112 .num_reg_defaults = ARRAY_SIZE(nau8822_reg_defaults), 1113}; 1114 1115static int nau8822_i2c_probe(struct i2c_client *i2c) 1116{ 1117 struct device *dev = &i2c->dev; 1118 struct nau8822 *nau8822 = dev_get_platdata(dev); 1119 int ret; 1120 1121 if (!nau8822) { 1122 nau8822 = devm_kzalloc(dev, sizeof(*nau8822), GFP_KERNEL); 1123 if (nau8822 == NULL) 1124 return -ENOMEM; 1125 } 1126 i2c_set_clientdata(i2c, nau8822); 1127 1128 nau8822->regmap = devm_regmap_init_i2c(i2c, &nau8822_regmap_config); 1129 if (IS_ERR(nau8822->regmap)) { 1130 ret = PTR_ERR(nau8822->regmap); 1131 dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret); 1132 return ret; 1133 } 1134 nau8822->dev = dev; 1135 1136 /* Reset the codec */ 1137 ret = regmap_write(nau8822->regmap, NAU8822_REG_RESET, 0x00); 1138 if (ret != 0) { 1139 dev_err(&i2c->dev, "Failed to issue reset: %d\n", ret); 1140 return ret; 1141 } 1142 1143 ret = devm_snd_soc_register_component(dev, &soc_component_dev_nau8822, 1144 &nau8822_dai, 1); 1145 if (ret != 0) { 1146 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret); 1147 return ret; 1148 } 1149 1150 return 0; 1151} 1152 1153static const struct i2c_device_id nau8822_i2c_id[] = { 1154 { "nau8822", 0 }, 1155 { } 1156}; 1157MODULE_DEVICE_TABLE(i2c, nau8822_i2c_id); 1158 1159#ifdef CONFIG_OF 1160static const struct of_device_id nau8822_of_match[] = { 1161 { .compatible = "nuvoton,nau8822", }, 1162 { } 1163}; 1164MODULE_DEVICE_TABLE(of, nau8822_of_match); 1165#endif 1166 1167static struct i2c_driver nau8822_i2c_driver = { 1168 .driver = { 1169 .name = "nau8822", 1170 .of_match_table = of_match_ptr(nau8822_of_match), 1171 }, 1172 .probe = nau8822_i2c_probe, 1173 .id_table = nau8822_i2c_id, 1174}; 1175module_i2c_driver(nau8822_i2c_driver); 1176 1177MODULE_DESCRIPTION("ASoC NAU8822 codec driver"); 1178MODULE_AUTHOR("David Lin <ctlin0@nuvoton.com>"); 1179MODULE_LICENSE("GPL v2"); 1180