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 37 static const int nau8822_mclk_scaler[] = { 10, 15, 20, 30, 40, 60, 80, 120 }; 38 39 static 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 }; 109 110 static 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 } 133 134 static 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 } 157 158 static 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 */ 179 static 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; 187 188 val = (u16 *)ucontrol->value.bytes.data; 189 reg = NAU8822_REG_EQ1; 190 for (i = 0; i < params->max / sizeof(u16); i++) { 191 reg_val = snd_soc_component_read(component, reg + i); 192 /* conversion of 16-bit integers between native CPU format 193 * and big endian format 194 */ 195 reg_val = cpu_to_be16(reg_val); 196 memcpy(val + i, ®_val, sizeof(reg_val)); 197 } 198 199 return 0; 200 } 201 202 /* The EQ parameters put function is to make configuration of 5 band equalizer 203 * control. These configuration includes central frequency, equalizer gain, 204 * cut-off frequency, bandwidth control, and equalizer path. 205 * The regmap raw write can't work here because regmap doesn't provide 206 * register and value format for register with address 7 bits and value 9 bits. 207 * Therefore, the driver makes value format according to the endianness of 208 * bytes type control element and writes data to codec. 209 */ 210 static int nau8822_eq_put(struct snd_kcontrol *kcontrol, 211 struct snd_ctl_elem_value *ucontrol) 212 { 213 struct snd_soc_component *component = 214 snd_soc_kcontrol_component(kcontrol); 215 struct soc_bytes_ext *params = (void *)kcontrol->private_value; 216 void *data; 217 u16 *val, value; 218 int i, reg, ret; 219 220 data = kmemdup(ucontrol->value.bytes.data, 221 params->max, GFP_KERNEL | GFP_DMA); 222 if (!data) 223 return -ENOMEM; 224 225 val = (u16 *)data; 226 reg = NAU8822_REG_EQ1; 227 for (i = 0; i < params->max / sizeof(u16); i++) { 228 /* conversion of 16-bit integers between native CPU format 229 * and big endian format 230 */ 231 value = be16_to_cpu(*(val + i)); 232 ret = snd_soc_component_write(component, reg + i, value); 233 if (ret) { 234 dev_err(component->dev, 235 "EQ configuration fail, register: %x ret: %d\n", 236 reg + i, ret); 237 kfree(data); 238 return ret; 239 } 240 } 241 kfree(data); 242 243 return 0; 244 } 245 246 static const char * const nau8822_companding[] = { 247 "Off", "NC", "u-law", "A-law"}; 248 249 static const struct soc_enum nau8822_companding_adc_enum = 250 SOC_ENUM_SINGLE(NAU8822_REG_COMPANDING_CONTROL, NAU8822_ADCCM_SFT, 251 ARRAY_SIZE(nau8822_companding), nau8822_companding); 252 253 static const struct soc_enum nau8822_companding_dac_enum = 254 SOC_ENUM_SINGLE(NAU8822_REG_COMPANDING_CONTROL, NAU8822_DACCM_SFT, 255 ARRAY_SIZE(nau8822_companding), nau8822_companding); 256 257 static const char * const nau8822_eqmode[] = {"Capture", "Playback"}; 258 259 static const struct soc_enum nau8822_eqmode_enum = 260 SOC_ENUM_SINGLE(NAU8822_REG_EQ1, NAU8822_EQM_SFT, 261 ARRAY_SIZE(nau8822_eqmode), nau8822_eqmode); 262 263 static const char * const nau8822_alc1[] = {"Off", "Right", "Left", "Both"}; 264 static const char * const nau8822_alc3[] = {"Normal", "Limiter"}; 265 266 static const struct soc_enum nau8822_alc_enable_enum = 267 SOC_ENUM_SINGLE(NAU8822_REG_ALC_CONTROL_1, NAU8822_ALCEN_SFT, 268 ARRAY_SIZE(nau8822_alc1), nau8822_alc1); 269 270 static const struct soc_enum nau8822_alc_mode_enum = 271 SOC_ENUM_SINGLE(NAU8822_REG_ALC_CONTROL_3, NAU8822_ALCM_SFT, 272 ARRAY_SIZE(nau8822_alc3), nau8822_alc3); 273 274 static const DECLARE_TLV_DB_SCALE(digital_tlv, -12750, 50, 1); 275 static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1200, 75, 0); 276 static const DECLARE_TLV_DB_SCALE(spk_tlv, -5700, 100, 0); 277 static const DECLARE_TLV_DB_SCALE(pga_boost_tlv, 0, 2000, 0); 278 static const DECLARE_TLV_DB_SCALE(boost_tlv, -1500, 300, 1); 279 static const DECLARE_TLV_DB_SCALE(limiter_tlv, 0, 100, 0); 280 281 static const struct snd_kcontrol_new nau8822_snd_controls[] = { 282 SOC_ENUM("ADC Companding", nau8822_companding_adc_enum), 283 SOC_ENUM("DAC Companding", nau8822_companding_dac_enum), 284 285 SOC_ENUM("EQ Function", nau8822_eqmode_enum), 286 SND_SOC_BYTES_EXT("EQ Parameters", 10, 287 nau8822_eq_get, nau8822_eq_put), 288 289 SOC_DOUBLE("DAC Inversion Switch", 290 NAU8822_REG_DAC_CONTROL, 0, 1, 1, 0), 291 SOC_DOUBLE_R_TLV("PCM Volume", 292 NAU8822_REG_LEFT_DAC_DIGITAL_VOLUME, 293 NAU8822_REG_RIGHT_DAC_DIGITAL_VOLUME, 0, 255, 0, digital_tlv), 294 295 SOC_SINGLE("High Pass Filter Switch", 296 NAU8822_REG_ADC_CONTROL, 8, 1, 0), 297 SOC_SINGLE("High Pass Cut Off", 298 NAU8822_REG_ADC_CONTROL, 4, 7, 0), 299 300 SOC_DOUBLE("ADC Inversion Switch", 301 NAU8822_REG_ADC_CONTROL, 0, 1, 1, 0), 302 SOC_DOUBLE_R_TLV("ADC Volume", 303 NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME, 304 NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME, 0, 255, 0, digital_tlv), 305 306 SOC_SINGLE("DAC Limiter Switch", 307 NAU8822_REG_DAC_LIMITER_1, 8, 1, 0), 308 SOC_SINGLE("DAC Limiter Decay", 309 NAU8822_REG_DAC_LIMITER_1, 4, 15, 0), 310 SOC_SINGLE("DAC Limiter Attack", 311 NAU8822_REG_DAC_LIMITER_1, 0, 15, 0), 312 SOC_SINGLE("DAC Limiter Threshold", 313 NAU8822_REG_DAC_LIMITER_2, 4, 7, 0), 314 SOC_SINGLE_TLV("DAC Limiter Volume", 315 NAU8822_REG_DAC_LIMITER_2, 0, 12, 0, limiter_tlv), 316 317 SOC_ENUM("ALC Mode", nau8822_alc_mode_enum), 318 SOC_ENUM("ALC Enable Switch", nau8822_alc_enable_enum), 319 SOC_SINGLE("ALC Min Gain", 320 NAU8822_REG_ALC_CONTROL_1, 0, 7, 0), 321 SOC_SINGLE("ALC Max Gain", 322 NAU8822_REG_ALC_CONTROL_1, 3, 7, 0), 323 SOC_SINGLE("ALC Hold", 324 NAU8822_REG_ALC_CONTROL_2, 4, 10, 0), 325 SOC_SINGLE("ALC Target", 326 NAU8822_REG_ALC_CONTROL_2, 0, 15, 0), 327 SOC_SINGLE("ALC Decay", 328 NAU8822_REG_ALC_CONTROL_3, 4, 10, 0), 329 SOC_SINGLE("ALC Attack", 330 NAU8822_REG_ALC_CONTROL_3, 0, 10, 0), 331 SOC_SINGLE("ALC Noise Gate Switch", 332 NAU8822_REG_NOISE_GATE, 3, 1, 0), 333 SOC_SINGLE("ALC Noise Gate Threshold", 334 NAU8822_REG_NOISE_GATE, 0, 7, 0), 335 336 SOC_DOUBLE_R("PGA ZC Switch", 337 NAU8822_REG_LEFT_INP_PGA_CONTROL, 338 NAU8822_REG_RIGHT_INP_PGA_CONTROL, 339 7, 1, 0), 340 SOC_DOUBLE_R_TLV("PGA Volume", 341 NAU8822_REG_LEFT_INP_PGA_CONTROL, 342 NAU8822_REG_RIGHT_INP_PGA_CONTROL, 0, 63, 0, inpga_tlv), 343 344 SOC_DOUBLE_R("Headphone ZC Switch", 345 NAU8822_REG_LHP_VOLUME, 346 NAU8822_REG_RHP_VOLUME, 7, 1, 0), 347 SOC_DOUBLE_R("Headphone Playback Switch", 348 NAU8822_REG_LHP_VOLUME, 349 NAU8822_REG_RHP_VOLUME, 6, 1, 1), 350 SOC_DOUBLE_R_TLV("Headphone Volume", 351 NAU8822_REG_LHP_VOLUME, 352 NAU8822_REG_RHP_VOLUME, 0, 63, 0, spk_tlv), 353 354 SOC_DOUBLE_R("Speaker ZC Switch", 355 NAU8822_REG_LSPKOUT_VOLUME, 356 NAU8822_REG_RSPKOUT_VOLUME, 7, 1, 0), 357 SOC_DOUBLE_R("Speaker Playback Switch", 358 NAU8822_REG_LSPKOUT_VOLUME, 359 NAU8822_REG_RSPKOUT_VOLUME, 6, 1, 1), 360 SOC_DOUBLE_R_TLV("Speaker Volume", 361 NAU8822_REG_LSPKOUT_VOLUME, 362 NAU8822_REG_RSPKOUT_VOLUME, 0, 63, 0, spk_tlv), 363 364 SOC_DOUBLE_R("AUXOUT Playback Switch", 365 NAU8822_REG_AUX2_MIXER, 366 NAU8822_REG_AUX1_MIXER, 6, 1, 1), 367 368 SOC_DOUBLE_R_TLV("PGA Boost Volume", 369 NAU8822_REG_LEFT_ADC_BOOST_CONTROL, 370 NAU8822_REG_RIGHT_ADC_BOOST_CONTROL, 8, 1, 0, pga_boost_tlv), 371 SOC_DOUBLE_R_TLV("L2/R2 Boost Volume", 372 NAU8822_REG_LEFT_ADC_BOOST_CONTROL, 373 NAU8822_REG_RIGHT_ADC_BOOST_CONTROL, 4, 7, 0, boost_tlv), 374 SOC_DOUBLE_R_TLV("Aux Boost Volume", 375 NAU8822_REG_LEFT_ADC_BOOST_CONTROL, 376 NAU8822_REG_RIGHT_ADC_BOOST_CONTROL, 0, 7, 0, boost_tlv), 377 378 SOC_SINGLE("DAC 128x Oversampling Switch", 379 NAU8822_REG_DAC_CONTROL, 5, 1, 0), 380 SOC_SINGLE("ADC 128x Oversampling Switch", 381 NAU8822_REG_ADC_CONTROL, 5, 1, 0), 382 }; 383 384 /* LMAIN and RMAIN Mixer */ 385 static const struct snd_kcontrol_new nau8822_left_out_mixer[] = { 386 SOC_DAPM_SINGLE("LINMIX Switch", 387 NAU8822_REG_LEFT_MIXER_CONTROL, 1, 1, 0), 388 SOC_DAPM_SINGLE("LAUX Switch", 389 NAU8822_REG_LEFT_MIXER_CONTROL, 5, 1, 0), 390 SOC_DAPM_SINGLE("LDAC Switch", 391 NAU8822_REG_LEFT_MIXER_CONTROL, 0, 1, 0), 392 SOC_DAPM_SINGLE("RDAC Switch", 393 NAU8822_REG_OUTPUT_CONTROL, 5, 1, 0), 394 }; 395 396 static const struct snd_kcontrol_new nau8822_right_out_mixer[] = { 397 SOC_DAPM_SINGLE("RINMIX Switch", 398 NAU8822_REG_RIGHT_MIXER_CONTROL, 1, 1, 0), 399 SOC_DAPM_SINGLE("RAUX Switch", 400 NAU8822_REG_RIGHT_MIXER_CONTROL, 5, 1, 0), 401 SOC_DAPM_SINGLE("RDAC Switch", 402 NAU8822_REG_RIGHT_MIXER_CONTROL, 0, 1, 0), 403 SOC_DAPM_SINGLE("LDAC Switch", 404 NAU8822_REG_OUTPUT_CONTROL, 6, 1, 0), 405 }; 406 407 /* AUX1 and AUX2 Mixer */ 408 static const struct snd_kcontrol_new nau8822_auxout1_mixer[] = { 409 SOC_DAPM_SINGLE("RDAC Switch", NAU8822_REG_AUX1_MIXER, 0, 1, 0), 410 SOC_DAPM_SINGLE("RMIX Switch", NAU8822_REG_AUX1_MIXER, 1, 1, 0), 411 SOC_DAPM_SINGLE("RINMIX Switch", NAU8822_REG_AUX1_MIXER, 2, 1, 0), 412 SOC_DAPM_SINGLE("LDAC Switch", NAU8822_REG_AUX1_MIXER, 3, 1, 0), 413 SOC_DAPM_SINGLE("LMIX Switch", NAU8822_REG_AUX1_MIXER, 4, 1, 0), 414 }; 415 416 static const struct snd_kcontrol_new nau8822_auxout2_mixer[] = { 417 SOC_DAPM_SINGLE("LDAC Switch", NAU8822_REG_AUX2_MIXER, 0, 1, 0), 418 SOC_DAPM_SINGLE("LMIX Switch", NAU8822_REG_AUX2_MIXER, 1, 1, 0), 419 SOC_DAPM_SINGLE("LINMIX Switch", NAU8822_REG_AUX2_MIXER, 2, 1, 0), 420 SOC_DAPM_SINGLE("AUX1MIX Output Switch", 421 NAU8822_REG_AUX2_MIXER, 3, 1, 0), 422 }; 423 424 /* Input PGA */ 425 static const struct snd_kcontrol_new nau8822_left_input_mixer[] = { 426 SOC_DAPM_SINGLE("L2 Switch", NAU8822_REG_INPUT_CONTROL, 2, 1, 0), 427 SOC_DAPM_SINGLE("MicN Switch", NAU8822_REG_INPUT_CONTROL, 1, 1, 0), 428 SOC_DAPM_SINGLE("MicP Switch", NAU8822_REG_INPUT_CONTROL, 0, 1, 0), 429 }; 430 static const struct snd_kcontrol_new nau8822_right_input_mixer[] = { 431 SOC_DAPM_SINGLE("R2 Switch", NAU8822_REG_INPUT_CONTROL, 6, 1, 0), 432 SOC_DAPM_SINGLE("MicN Switch", NAU8822_REG_INPUT_CONTROL, 5, 1, 0), 433 SOC_DAPM_SINGLE("MicP Switch", NAU8822_REG_INPUT_CONTROL, 4, 1, 0), 434 }; 435 436 /* Loopback Switch */ 437 static const struct snd_kcontrol_new nau8822_loopback = 438 SOC_DAPM_SINGLE("Switch", NAU8822_REG_COMPANDING_CONTROL, 439 NAU8822_ADDAP_SFT, 1, 0); 440 441 static int check_mclk_select_pll(struct snd_soc_dapm_widget *source, 442 struct snd_soc_dapm_widget *sink) 443 { 444 struct snd_soc_component *component = 445 snd_soc_dapm_to_component(source->dapm); 446 unsigned int value; 447 448 value = snd_soc_component_read(component, NAU8822_REG_CLOCKING); 449 450 return (value & NAU8822_CLKM_MASK); 451 } 452 453 static const struct snd_soc_dapm_widget nau8822_dapm_widgets[] = { 454 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", 455 NAU8822_REG_POWER_MANAGEMENT_3, 0, 0), 456 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", 457 NAU8822_REG_POWER_MANAGEMENT_3, 1, 0), 458 SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture", 459 NAU8822_REG_POWER_MANAGEMENT_2, 0, 0), 460 SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture", 461 NAU8822_REG_POWER_MANAGEMENT_2, 1, 0), 462 463 SOC_MIXER_ARRAY("Left Output Mixer", 464 NAU8822_REG_POWER_MANAGEMENT_3, 2, 0, nau8822_left_out_mixer), 465 SOC_MIXER_ARRAY("Right Output Mixer", 466 NAU8822_REG_POWER_MANAGEMENT_3, 3, 0, nau8822_right_out_mixer), 467 SOC_MIXER_ARRAY("AUX1 Output Mixer", 468 NAU8822_REG_POWER_MANAGEMENT_1, 7, 0, nau8822_auxout1_mixer), 469 SOC_MIXER_ARRAY("AUX2 Output Mixer", 470 NAU8822_REG_POWER_MANAGEMENT_1, 6, 0, nau8822_auxout2_mixer), 471 472 SOC_MIXER_ARRAY("Left Input Mixer", 473 NAU8822_REG_POWER_MANAGEMENT_2, 474 2, 0, nau8822_left_input_mixer), 475 SOC_MIXER_ARRAY("Right Input Mixer", 476 NAU8822_REG_POWER_MANAGEMENT_2, 477 3, 0, nau8822_right_input_mixer), 478 479 SND_SOC_DAPM_PGA("Left Boost Mixer", 480 NAU8822_REG_POWER_MANAGEMENT_2, 4, 0, NULL, 0), 481 SND_SOC_DAPM_PGA("Right Boost Mixer", 482 NAU8822_REG_POWER_MANAGEMENT_2, 5, 0, NULL, 0), 483 484 SND_SOC_DAPM_PGA("Left Capture PGA", 485 NAU8822_REG_LEFT_INP_PGA_CONTROL, 6, 1, NULL, 0), 486 SND_SOC_DAPM_PGA("Right Capture PGA", 487 NAU8822_REG_RIGHT_INP_PGA_CONTROL, 6, 1, NULL, 0), 488 489 SND_SOC_DAPM_PGA("Left Headphone Out", 490 NAU8822_REG_POWER_MANAGEMENT_2, 7, 0, NULL, 0), 491 SND_SOC_DAPM_PGA("Right Headphone Out", 492 NAU8822_REG_POWER_MANAGEMENT_2, 8, 0, NULL, 0), 493 494 SND_SOC_DAPM_PGA("Left Speaker Out", 495 NAU8822_REG_POWER_MANAGEMENT_3, 6, 0, NULL, 0), 496 SND_SOC_DAPM_PGA("Right Speaker Out", 497 NAU8822_REG_POWER_MANAGEMENT_3, 5, 0, NULL, 0), 498 499 SND_SOC_DAPM_PGA("AUX1 Out", 500 NAU8822_REG_POWER_MANAGEMENT_3, 8, 0, NULL, 0), 501 SND_SOC_DAPM_PGA("AUX2 Out", 502 NAU8822_REG_POWER_MANAGEMENT_3, 7, 0, NULL, 0), 503 504 SND_SOC_DAPM_SUPPLY("Mic Bias", 505 NAU8822_REG_POWER_MANAGEMENT_1, 4, 0, NULL, 0), 506 SND_SOC_DAPM_SUPPLY("PLL", 507 NAU8822_REG_POWER_MANAGEMENT_1, 5, 0, NULL, 0), 508 509 SND_SOC_DAPM_SWITCH("Digital Loopback", SND_SOC_NOPM, 0, 0, 510 &nau8822_loopback), 511 512 SND_SOC_DAPM_INPUT("LMICN"), 513 SND_SOC_DAPM_INPUT("LMICP"), 514 SND_SOC_DAPM_INPUT("RMICN"), 515 SND_SOC_DAPM_INPUT("RMICP"), 516 SND_SOC_DAPM_INPUT("LAUX"), 517 SND_SOC_DAPM_INPUT("RAUX"), 518 SND_SOC_DAPM_INPUT("L2"), 519 SND_SOC_DAPM_INPUT("R2"), 520 SND_SOC_DAPM_OUTPUT("LHP"), 521 SND_SOC_DAPM_OUTPUT("RHP"), 522 SND_SOC_DAPM_OUTPUT("LSPK"), 523 SND_SOC_DAPM_OUTPUT("RSPK"), 524 SND_SOC_DAPM_OUTPUT("AUXOUT1"), 525 SND_SOC_DAPM_OUTPUT("AUXOUT2"), 526 }; 527 528 static const struct snd_soc_dapm_route nau8822_dapm_routes[] = { 529 {"Right DAC", NULL, "PLL", check_mclk_select_pll}, 530 {"Left DAC", NULL, "PLL", check_mclk_select_pll}, 531 532 /* LMAIN and RMAIN Mixer */ 533 {"Right Output Mixer", "LDAC Switch", "Left DAC"}, 534 {"Right Output Mixer", "RDAC Switch", "Right DAC"}, 535 {"Right Output Mixer", "RAUX Switch", "RAUX"}, 536 {"Right Output Mixer", "RINMIX Switch", "Right Boost Mixer"}, 537 538 {"Left Output Mixer", "LDAC Switch", "Left DAC"}, 539 {"Left Output Mixer", "RDAC Switch", "Right DAC"}, 540 {"Left Output Mixer", "LAUX Switch", "LAUX"}, 541 {"Left Output Mixer", "LINMIX Switch", "Left Boost Mixer"}, 542 543 /* AUX1 and AUX2 Mixer */ 544 {"AUX1 Output Mixer", "RDAC Switch", "Right DAC"}, 545 {"AUX1 Output Mixer", "RMIX Switch", "Right Output Mixer"}, 546 {"AUX1 Output Mixer", "RINMIX Switch", "Right Boost Mixer"}, 547 {"AUX1 Output Mixer", "LDAC Switch", "Left DAC"}, 548 {"AUX1 Output Mixer", "LMIX Switch", "Left Output Mixer"}, 549 550 {"AUX2 Output Mixer", "LDAC Switch", "Left DAC"}, 551 {"AUX2 Output Mixer", "LMIX Switch", "Left Output Mixer"}, 552 {"AUX2 Output Mixer", "LINMIX Switch", "Left Boost Mixer"}, 553 {"AUX2 Output Mixer", "AUX1MIX Output Switch", "AUX1 Output Mixer"}, 554 555 /* Outputs */ 556 {"Right Headphone Out", NULL, "Right Output Mixer"}, 557 {"RHP", NULL, "Right Headphone Out"}, 558 559 {"Left Headphone Out", NULL, "Left Output Mixer"}, 560 {"LHP", NULL, "Left Headphone Out"}, 561 562 {"Right Speaker Out", NULL, "Right Output Mixer"}, 563 {"RSPK", NULL, "Right Speaker Out"}, 564 565 {"Left Speaker Out", NULL, "Left Output Mixer"}, 566 {"LSPK", NULL, "Left Speaker Out"}, 567 568 {"AUX1 Out", NULL, "AUX1 Output Mixer"}, 569 {"AUX2 Out", NULL, "AUX2 Output Mixer"}, 570 {"AUXOUT1", NULL, "AUX1 Out"}, 571 {"AUXOUT2", NULL, "AUX2 Out"}, 572 573 /* Boost Mixer */ 574 {"Right ADC", NULL, "PLL", check_mclk_select_pll}, 575 {"Left ADC", NULL, "PLL", check_mclk_select_pll}, 576 577 {"Right ADC", NULL, "Right Boost Mixer"}, 578 579 {"Right Boost Mixer", NULL, "RAUX"}, 580 {"Right Boost Mixer", NULL, "Right Capture PGA"}, 581 {"Right Boost Mixer", NULL, "R2"}, 582 583 {"Left ADC", NULL, "Left Boost Mixer"}, 584 585 {"Left Boost Mixer", NULL, "LAUX"}, 586 {"Left Boost Mixer", NULL, "Left Capture PGA"}, 587 {"Left Boost Mixer", NULL, "L2"}, 588 589 /* Input PGA */ 590 {"Right Capture PGA", NULL, "Right Input Mixer"}, 591 {"Left Capture PGA", NULL, "Left Input Mixer"}, 592 593 /* Enable Microphone Power */ 594 {"Right Capture PGA", NULL, "Mic Bias"}, 595 {"Left Capture PGA", NULL, "Mic Bias"}, 596 597 {"Right Input Mixer", "R2 Switch", "R2"}, 598 {"Right Input Mixer", "MicN Switch", "RMICN"}, 599 {"Right Input Mixer", "MicP Switch", "RMICP"}, 600 601 {"Left Input Mixer", "L2 Switch", "L2"}, 602 {"Left Input Mixer", "MicN Switch", "LMICN"}, 603 {"Left Input Mixer", "MicP Switch", "LMICP"}, 604 605 /* Digital Loopback */ 606 {"Digital Loopback", "Switch", "Left ADC"}, 607 {"Digital Loopback", "Switch", "Right ADC"}, 608 {"Left DAC", NULL, "Digital Loopback"}, 609 {"Right DAC", NULL, "Digital Loopback"}, 610 }; 611 612 static int nau8822_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id, 613 unsigned int freq, int dir) 614 { 615 struct snd_soc_component *component = dai->component; 616 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component); 617 618 nau8822->div_id = clk_id; 619 nau8822->sysclk = freq; 620 dev_dbg(component->dev, "master sysclk %dHz, source %s\n", freq, 621 clk_id == NAU8822_CLK_PLL ? "PLL" : "MCLK"); 622 623 return 0; 624 } 625 626 static int nau8822_calc_pll(unsigned int pll_in, unsigned int fs, 627 struct nau8822_pll *pll_param) 628 { 629 u64 f2, f2_max, pll_ratio; 630 int i, scal_sel; 631 632 if (pll_in > NAU_PLL_REF_MAX || pll_in < NAU_PLL_REF_MIN) 633 return -EINVAL; 634 f2_max = 0; 635 scal_sel = ARRAY_SIZE(nau8822_mclk_scaler); 636 637 for (i = 0; i < scal_sel; i++) { 638 f2 = 256 * fs * 4 * nau8822_mclk_scaler[i] / 10; 639 if (f2 > NAU_PLL_FREQ_MIN && f2 < NAU_PLL_FREQ_MAX && 640 f2_max < f2) { 641 f2_max = f2; 642 scal_sel = i; 643 } 644 } 645 646 if (ARRAY_SIZE(nau8822_mclk_scaler) == scal_sel) 647 return -EINVAL; 648 pll_param->mclk_scaler = scal_sel; 649 f2 = f2_max; 650 651 /* Calculate the PLL 4-bit integer input and the PLL 24-bit fractional 652 * input; round up the 24+4bit. 653 */ 654 pll_ratio = div_u64(f2 << 28, pll_in); 655 pll_param->pre_factor = 0; 656 if (((pll_ratio >> 28) & 0xF) < NAU_PLL_OPTOP_MIN) { 657 pll_ratio <<= 1; 658 pll_param->pre_factor = 1; 659 } 660 pll_param->pll_int = (pll_ratio >> 28) & 0xF; 661 pll_param->pll_frac = ((pll_ratio & 0xFFFFFFF) >> 4); 662 663 return 0; 664 } 665 666 static int nau8822_config_clkdiv(struct snd_soc_dai *dai, int div, int rate) 667 { 668 struct snd_soc_component *component = dai->component; 669 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component); 670 struct nau8822_pll *pll = &nau8822->pll; 671 int i, sclk, imclk; 672 673 switch (nau8822->div_id) { 674 case NAU8822_CLK_MCLK: 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 div = 0; 680 imclk = rate * 256; 681 for (i = 1; i < ARRAY_SIZE(nau8822_mclk_scaler); i++) { 682 sclk = (nau8822->sysclk * 10) / nau8822_mclk_scaler[i]; 683 if (sclk < imclk) 684 break; 685 div = i; 686 } 687 dev_dbg(component->dev, "master clock prescaler %x for fs %d\n", 688 div, rate); 689 690 /* master clock from MCLK and disable PLL */ 691 snd_soc_component_update_bits(component, 692 NAU8822_REG_CLOCKING, NAU8822_MCLKSEL_MASK, 693 (div << NAU8822_MCLKSEL_SFT)); 694 snd_soc_component_update_bits(component, 695 NAU8822_REG_CLOCKING, NAU8822_CLKM_MASK, 696 NAU8822_CLKM_MCLK); 697 break; 698 699 case NAU8822_CLK_PLL: 700 /* master clock from PLL and enable PLL */ 701 if (pll->mclk_scaler != div) { 702 dev_err(component->dev, 703 "master clock prescaler not meet PLL parameters\n"); 704 return -EINVAL; 705 } 706 snd_soc_component_update_bits(component, 707 NAU8822_REG_CLOCKING, NAU8822_MCLKSEL_MASK, 708 (div << NAU8822_MCLKSEL_SFT)); 709 snd_soc_component_update_bits(component, 710 NAU8822_REG_CLOCKING, NAU8822_CLKM_MASK, 711 NAU8822_CLKM_PLL); 712 break; 713 714 default: 715 return -EINVAL; 716 } 717 718 return 0; 719 } 720 721 static int nau8822_set_pll(struct snd_soc_dai *dai, int pll_id, int source, 722 unsigned int freq_in, unsigned int freq_out) 723 { 724 struct snd_soc_component *component = dai->component; 725 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component); 726 struct nau8822_pll *pll_param = &nau8822->pll; 727 int ret, fs; 728 729 if (freq_in == pll_param->freq_in && 730 freq_out == pll_param->freq_out) 731 return 0; 732 733 if (freq_out == 0) { 734 dev_dbg(component->dev, "PLL disabled\n"); 735 snd_soc_component_update_bits(component, 736 NAU8822_REG_POWER_MANAGEMENT_1, NAU8822_PLL_EN_MASK, NAU8822_PLL_OFF); 737 return 0; 738 } 739 740 fs = freq_out / 256; 741 742 ret = nau8822_calc_pll(freq_in, fs, pll_param); 743 if (ret < 0) { 744 dev_err(component->dev, "Unsupported input clock %d\n", 745 freq_in); 746 return ret; 747 } 748 749 dev_info(component->dev, 750 "pll_int=%x pll_frac=%x mclk_scaler=%x pre_factor=%x\n", 751 pll_param->pll_int, pll_param->pll_frac, 752 pll_param->mclk_scaler, pll_param->pre_factor); 753 754 snd_soc_component_update_bits(component, 755 NAU8822_REG_POWER_MANAGEMENT_1, NAU8822_PLL_EN_MASK, NAU8822_PLL_OFF); 756 snd_soc_component_update_bits(component, 757 NAU8822_REG_PLL_N, NAU8822_PLLMCLK_DIV2 | NAU8822_PLLN_MASK, 758 (pll_param->pre_factor ? NAU8822_PLLMCLK_DIV2 : 0) | 759 pll_param->pll_int); 760 snd_soc_component_write(component, 761 NAU8822_REG_PLL_K1, (pll_param->pll_frac >> NAU8822_PLLK1_SFT) & 762 NAU8822_PLLK1_MASK); 763 snd_soc_component_write(component, 764 NAU8822_REG_PLL_K2, (pll_param->pll_frac >> NAU8822_PLLK2_SFT) & 765 NAU8822_PLLK2_MASK); 766 snd_soc_component_write(component, 767 NAU8822_REG_PLL_K3, pll_param->pll_frac & NAU8822_PLLK3_MASK); 768 snd_soc_component_update_bits(component, 769 NAU8822_REG_CLOCKING, NAU8822_MCLKSEL_MASK, 770 pll_param->mclk_scaler << NAU8822_MCLKSEL_SFT); 771 snd_soc_component_update_bits(component, 772 NAU8822_REG_CLOCKING, NAU8822_CLKM_MASK, NAU8822_CLKM_PLL); 773 snd_soc_component_update_bits(component, 774 NAU8822_REG_POWER_MANAGEMENT_1, NAU8822_PLL_EN_MASK, NAU8822_PLL_ON); 775 776 pll_param->freq_in = freq_in; 777 pll_param->freq_out = freq_out; 778 779 return 0; 780 } 781 782 static int nau8822_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) 783 { 784 struct snd_soc_component *component = dai->component; 785 u16 ctrl1_val = 0, ctrl2_val = 0; 786 787 dev_dbg(component->dev, "%s\n", __func__); 788 789 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 790 case SND_SOC_DAIFMT_CBM_CFM: 791 ctrl2_val |= 1; 792 break; 793 case SND_SOC_DAIFMT_CBS_CFS: 794 ctrl2_val &= ~1; 795 break; 796 default: 797 return -EINVAL; 798 } 799 800 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 801 case SND_SOC_DAIFMT_I2S: 802 ctrl1_val |= 0x10; 803 break; 804 case SND_SOC_DAIFMT_RIGHT_J: 805 break; 806 case SND_SOC_DAIFMT_LEFT_J: 807 ctrl1_val |= 0x8; 808 break; 809 case SND_SOC_DAIFMT_DSP_A: 810 ctrl1_val |= 0x18; 811 break; 812 default: 813 return -EINVAL; 814 } 815 816 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 817 case SND_SOC_DAIFMT_NB_NF: 818 break; 819 case SND_SOC_DAIFMT_IB_IF: 820 ctrl1_val |= 0x180; 821 break; 822 case SND_SOC_DAIFMT_IB_NF: 823 ctrl1_val |= 0x100; 824 break; 825 case SND_SOC_DAIFMT_NB_IF: 826 ctrl1_val |= 0x80; 827 break; 828 default: 829 return -EINVAL; 830 } 831 832 snd_soc_component_update_bits(component, 833 NAU8822_REG_AUDIO_INTERFACE, 834 NAU8822_AIFMT_MASK | NAU8822_LRP_MASK | NAU8822_BCLKP_MASK, 835 ctrl1_val); 836 snd_soc_component_update_bits(component, 837 NAU8822_REG_CLOCKING, NAU8822_CLKIOEN_MASK, ctrl2_val); 838 839 return 0; 840 } 841 842 static int nau8822_hw_params(struct snd_pcm_substream *substream, 843 struct snd_pcm_hw_params *params, 844 struct snd_soc_dai *dai) 845 { 846 struct snd_soc_component *component = dai->component; 847 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component); 848 int val_len = 0, val_rate = 0; 849 unsigned int ctrl_val, bclk_fs, bclk_div; 850 851 /* make BCLK and LRC divide configuration if the codec as master. */ 852 ctrl_val = snd_soc_component_read(component, NAU8822_REG_CLOCKING); 853 if (ctrl_val & NAU8822_CLK_MASTER) { 854 /* get the bclk and fs ratio */ 855 bclk_fs = snd_soc_params_to_bclk(params) / params_rate(params); 856 if (bclk_fs <= 32) 857 bclk_div = NAU8822_BCLKDIV_8; 858 else if (bclk_fs <= 64) 859 bclk_div = NAU8822_BCLKDIV_4; 860 else if (bclk_fs <= 128) 861 bclk_div = NAU8822_BCLKDIV_2; 862 else 863 return -EINVAL; 864 snd_soc_component_update_bits(component, NAU8822_REG_CLOCKING, 865 NAU8822_BCLKSEL_MASK, bclk_div); 866 } 867 868 switch (params_format(params)) { 869 case SNDRV_PCM_FORMAT_S16_LE: 870 break; 871 case SNDRV_PCM_FORMAT_S20_3LE: 872 val_len |= NAU8822_WLEN_20; 873 break; 874 case SNDRV_PCM_FORMAT_S24_LE: 875 val_len |= NAU8822_WLEN_24; 876 break; 877 case SNDRV_PCM_FORMAT_S32_LE: 878 val_len |= NAU8822_WLEN_32; 879 break; 880 default: 881 return -EINVAL; 882 } 883 884 switch (params_rate(params)) { 885 case 8000: 886 val_rate |= NAU8822_SMPLR_8K; 887 break; 888 case 11025: 889 val_rate |= NAU8822_SMPLR_12K; 890 break; 891 case 16000: 892 val_rate |= NAU8822_SMPLR_16K; 893 break; 894 case 22050: 895 val_rate |= NAU8822_SMPLR_24K; 896 break; 897 case 32000: 898 val_rate |= NAU8822_SMPLR_32K; 899 break; 900 case 44100: 901 case 48000: 902 break; 903 default: 904 return -EINVAL; 905 } 906 907 snd_soc_component_update_bits(component, 908 NAU8822_REG_AUDIO_INTERFACE, NAU8822_WLEN_MASK, val_len); 909 snd_soc_component_update_bits(component, 910 NAU8822_REG_ADDITIONAL_CONTROL, NAU8822_SMPLR_MASK, val_rate); 911 912 /* If the master clock is from MCLK, provide the runtime FS for driver 913 * to get the master clock prescaler configuration. 914 */ 915 if (nau8822->div_id == NAU8822_CLK_MCLK) 916 nau8822_config_clkdiv(dai, 0, params_rate(params)); 917 918 return 0; 919 } 920 921 static int nau8822_mute(struct snd_soc_dai *dai, int mute, int direction) 922 { 923 struct snd_soc_component *component = dai->component; 924 925 dev_dbg(component->dev, "%s: %d\n", __func__, mute); 926 927 if (mute) 928 snd_soc_component_update_bits(component, 929 NAU8822_REG_DAC_CONTROL, 0x40, 0x40); 930 else 931 snd_soc_component_update_bits(component, 932 NAU8822_REG_DAC_CONTROL, 0x40, 0); 933 934 return 0; 935 } 936 937 static int nau8822_set_bias_level(struct snd_soc_component *component, 938 enum snd_soc_bias_level level) 939 { 940 switch (level) { 941 case SND_SOC_BIAS_ON: 942 case SND_SOC_BIAS_PREPARE: 943 snd_soc_component_update_bits(component, 944 NAU8822_REG_POWER_MANAGEMENT_1, 945 NAU8822_REFIMP_MASK, NAU8822_REFIMP_80K); 946 break; 947 948 case SND_SOC_BIAS_STANDBY: 949 snd_soc_component_update_bits(component, 950 NAU8822_REG_POWER_MANAGEMENT_1, 951 NAU8822_IOBUF_EN | NAU8822_ABIAS_EN, 952 NAU8822_IOBUF_EN | NAU8822_ABIAS_EN); 953 954 if (snd_soc_component_get_bias_level(component) == 955 SND_SOC_BIAS_OFF) { 956 snd_soc_component_update_bits(component, 957 NAU8822_REG_POWER_MANAGEMENT_1, 958 NAU8822_REFIMP_MASK, NAU8822_REFIMP_3K); 959 mdelay(100); 960 } 961 snd_soc_component_update_bits(component, 962 NAU8822_REG_POWER_MANAGEMENT_1, 963 NAU8822_REFIMP_MASK, NAU8822_REFIMP_300K); 964 break; 965 966 case SND_SOC_BIAS_OFF: 967 snd_soc_component_write(component, 968 NAU8822_REG_POWER_MANAGEMENT_1, 0); 969 snd_soc_component_write(component, 970 NAU8822_REG_POWER_MANAGEMENT_2, 0); 971 snd_soc_component_write(component, 972 NAU8822_REG_POWER_MANAGEMENT_3, 0); 973 break; 974 } 975 976 dev_dbg(component->dev, "%s: %d\n", __func__, level); 977 978 return 0; 979 } 980 981 #define NAU8822_RATES (SNDRV_PCM_RATE_8000_48000) 982 983 #define NAU8822_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ 984 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) 985 986 static const struct snd_soc_dai_ops nau8822_dai_ops = { 987 .hw_params = nau8822_hw_params, 988 .mute_stream = nau8822_mute, 989 .set_fmt = nau8822_set_dai_fmt, 990 .set_sysclk = nau8822_set_dai_sysclk, 991 .set_pll = nau8822_set_pll, 992 .no_capture_mute = 1, 993 }; 994 995 static struct snd_soc_dai_driver nau8822_dai = { 996 .name = "nau8822-hifi", 997 .playback = { 998 .stream_name = "Playback", 999 .channels_min = 1, 1000 .channels_max = 2, 1001 .rates = NAU8822_RATES, 1002 .formats = NAU8822_FORMATS, 1003 }, 1004 .capture = { 1005 .stream_name = "Capture", 1006 .channels_min = 1, 1007 .channels_max = 2, 1008 .rates = NAU8822_RATES, 1009 .formats = NAU8822_FORMATS, 1010 }, 1011 .ops = &nau8822_dai_ops, 1012 .symmetric_rate = 1, 1013 }; 1014 1015 static int nau8822_suspend(struct snd_soc_component *component) 1016 { 1017 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component); 1018 1019 snd_soc_component_force_bias_level(component, SND_SOC_BIAS_OFF); 1020 1021 regcache_mark_dirty(nau8822->regmap); 1022 1023 return 0; 1024 } 1025 1026 static int nau8822_resume(struct snd_soc_component *component) 1027 { 1028 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component); 1029 1030 regcache_sync(nau8822->regmap); 1031 1032 snd_soc_component_force_bias_level(component, SND_SOC_BIAS_STANDBY); 1033 1034 return 0; 1035 } 1036 1037 /* 1038 * These registers contain an "update" bit - bit 8. This means, for example, 1039 * that one can write new DAC digital volume for both channels, but only when 1040 * the update bit is set, will also the volume be updated - simultaneously for 1041 * both channels. 1042 */ 1043 static const int update_reg[] = { 1044 NAU8822_REG_LEFT_DAC_DIGITAL_VOLUME, 1045 NAU8822_REG_RIGHT_DAC_DIGITAL_VOLUME, 1046 NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME, 1047 NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME, 1048 NAU8822_REG_LEFT_INP_PGA_CONTROL, 1049 NAU8822_REG_RIGHT_INP_PGA_CONTROL, 1050 NAU8822_REG_LHP_VOLUME, 1051 NAU8822_REG_RHP_VOLUME, 1052 NAU8822_REG_LSPKOUT_VOLUME, 1053 NAU8822_REG_RSPKOUT_VOLUME, 1054 }; 1055 1056 static int nau8822_probe(struct snd_soc_component *component) 1057 { 1058 int i; 1059 1060 /* 1061 * Set the update bit in all registers, that have one. This way all 1062 * writes to those registers will also cause the update bit to be 1063 * written. 1064 */ 1065 for (i = 0; i < ARRAY_SIZE(update_reg); i++) 1066 snd_soc_component_update_bits(component, 1067 update_reg[i], 0x100, 0x100); 1068 1069 return 0; 1070 } 1071 1072 static const struct snd_soc_component_driver soc_component_dev_nau8822 = { 1073 .probe = nau8822_probe, 1074 .suspend = nau8822_suspend, 1075 .resume = nau8822_resume, 1076 .set_bias_level = nau8822_set_bias_level, 1077 .controls = nau8822_snd_controls, 1078 .num_controls = ARRAY_SIZE(nau8822_snd_controls), 1079 .dapm_widgets = nau8822_dapm_widgets, 1080 .num_dapm_widgets = ARRAY_SIZE(nau8822_dapm_widgets), 1081 .dapm_routes = nau8822_dapm_routes, 1082 .num_dapm_routes = ARRAY_SIZE(nau8822_dapm_routes), 1083 .idle_bias_on = 1, 1084 .use_pmdown_time = 1, 1085 .endianness = 1, 1086 }; 1087 1088 static const struct regmap_config nau8822_regmap_config = { 1089 .reg_bits = 7, 1090 .val_bits = 9, 1091 1092 .max_register = NAU8822_REG_MAX_REGISTER, 1093 .volatile_reg = nau8822_volatile, 1094 1095 .readable_reg = nau8822_readable_reg, 1096 .writeable_reg = nau8822_writeable_reg, 1097 1098 .cache_type = REGCACHE_RBTREE, 1099 .reg_defaults = nau8822_reg_defaults, 1100 .num_reg_defaults = ARRAY_SIZE(nau8822_reg_defaults), 1101 }; 1102 1103 static int nau8822_i2c_probe(struct i2c_client *i2c) 1104 { 1105 struct device *dev = &i2c->dev; 1106 struct nau8822 *nau8822 = dev_get_platdata(dev); 1107 int ret; 1108 1109 if (!nau8822) { 1110 nau8822 = devm_kzalloc(dev, sizeof(*nau8822), GFP_KERNEL); 1111 if (nau8822 == NULL) 1112 return -ENOMEM; 1113 } 1114 i2c_set_clientdata(i2c, nau8822); 1115 1116 nau8822->regmap = devm_regmap_init_i2c(i2c, &nau8822_regmap_config); 1117 if (IS_ERR(nau8822->regmap)) { 1118 ret = PTR_ERR(nau8822->regmap); 1119 dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret); 1120 return ret; 1121 } 1122 nau8822->dev = dev; 1123 1124 /* Reset the codec */ 1125 ret = regmap_write(nau8822->regmap, NAU8822_REG_RESET, 0x00); 1126 if (ret != 0) { 1127 dev_err(&i2c->dev, "Failed to issue reset: %d\n", ret); 1128 return ret; 1129 } 1130 1131 ret = devm_snd_soc_register_component(dev, &soc_component_dev_nau8822, 1132 &nau8822_dai, 1); 1133 if (ret != 0) { 1134 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret); 1135 return ret; 1136 } 1137 1138 return 0; 1139 } 1140 1141 static const struct i2c_device_id nau8822_i2c_id[] = { 1142 { "nau8822", 0 }, 1143 { } 1144 }; 1145 MODULE_DEVICE_TABLE(i2c, nau8822_i2c_id); 1146 1147 #ifdef CONFIG_OF 1148 static const struct of_device_id nau8822_of_match[] = { 1149 { .compatible = "nuvoton,nau8822", }, 1150 { } 1151 }; 1152 MODULE_DEVICE_TABLE(of, nau8822_of_match); 1153 #endif 1154 1155 static struct i2c_driver nau8822_i2c_driver = { 1156 .driver = { 1157 .name = "nau8822", 1158 .of_match_table = of_match_ptr(nau8822_of_match), 1159 }, 1160 .probe_new = nau8822_i2c_probe, 1161 .id_table = nau8822_i2c_id, 1162 }; 1163 module_i2c_driver(nau8822_i2c_driver); 1164 1165 MODULE_DESCRIPTION("ASoC NAU8822 codec driver"); 1166 MODULE_AUTHOR("David Lin <ctlin0@nuvoton.com>"); 1167 MODULE_LICENSE("GPL v2"); 1168