1 /* 2 * cs42l52.c -- CS42L52 ALSA SoC audio driver 3 * 4 * Copyright 2012 CirrusLogic, Inc. 5 * 6 * Author: Georgi Vlaev <joe@nucleusys.com> 7 * Author: Brian Austin <brian.austin@cirrus.com> 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License version 2 as 11 * published by the Free Software Foundation. 12 * 13 */ 14 15 #include <linux/module.h> 16 #include <linux/moduleparam.h> 17 #include <linux/kernel.h> 18 #include <linux/init.h> 19 #include <linux/delay.h> 20 #include <linux/of_gpio.h> 21 #include <linux/pm.h> 22 #include <linux/i2c.h> 23 #include <linux/input.h> 24 #include <linux/regmap.h> 25 #include <linux/slab.h> 26 #include <linux/workqueue.h> 27 #include <linux/platform_device.h> 28 #include <sound/core.h> 29 #include <sound/pcm.h> 30 #include <sound/pcm_params.h> 31 #include <sound/soc.h> 32 #include <sound/soc-dapm.h> 33 #include <sound/initval.h> 34 #include <sound/tlv.h> 35 #include <sound/cs42l52.h> 36 #include "cs42l52.h" 37 38 struct sp_config { 39 u8 spc, format, spfs; 40 u32 srate; 41 }; 42 43 struct cs42l52_private { 44 struct regmap *regmap; 45 struct snd_soc_codec *codec; 46 struct device *dev; 47 struct sp_config config; 48 struct cs42l52_platform_data pdata; 49 u32 sysclk; 50 u8 mclksel; 51 u32 mclk; 52 u8 flags; 53 #if IS_ENABLED(CONFIG_INPUT) 54 struct input_dev *beep; 55 struct work_struct beep_work; 56 int beep_rate; 57 #endif 58 }; 59 60 static const struct reg_default cs42l52_reg_defaults[] = { 61 { CS42L52_PWRCTL1, 0x9F }, /* r02 PWRCTL 1 */ 62 { CS42L52_PWRCTL2, 0x07 }, /* r03 PWRCTL 2 */ 63 { CS42L52_PWRCTL3, 0xFF }, /* r04 PWRCTL 3 */ 64 { CS42L52_CLK_CTL, 0xA0 }, /* r05 Clocking Ctl */ 65 { CS42L52_IFACE_CTL1, 0x00 }, /* r06 Interface Ctl 1 */ 66 { CS42L52_ADC_PGA_A, 0x80 }, /* r08 Input A Select */ 67 { CS42L52_ADC_PGA_B, 0x80 }, /* r09 Input B Select */ 68 { CS42L52_ANALOG_HPF_CTL, 0xA5 }, /* r0A Analog HPF Ctl */ 69 { CS42L52_ADC_HPF_FREQ, 0x00 }, /* r0B ADC HPF Corner Freq */ 70 { CS42L52_ADC_MISC_CTL, 0x00 }, /* r0C Misc. ADC Ctl */ 71 { CS42L52_PB_CTL1, 0x60 }, /* r0D Playback Ctl 1 */ 72 { CS42L52_MISC_CTL, 0x02 }, /* r0E Misc. Ctl */ 73 { CS42L52_PB_CTL2, 0x00 }, /* r0F Playback Ctl 2 */ 74 { CS42L52_MICA_CTL, 0x00 }, /* r10 MICA Amp Ctl */ 75 { CS42L52_MICB_CTL, 0x00 }, /* r11 MICB Amp Ctl */ 76 { CS42L52_PGAA_CTL, 0x00 }, /* r12 PGAA Vol, Misc. */ 77 { CS42L52_PGAB_CTL, 0x00 }, /* r13 PGAB Vol, Misc. */ 78 { CS42L52_PASSTHRUA_VOL, 0x00 }, /* r14 Bypass A Vol */ 79 { CS42L52_PASSTHRUB_VOL, 0x00 }, /* r15 Bypass B Vol */ 80 { CS42L52_ADCA_VOL, 0x00 }, /* r16 ADCA Volume */ 81 { CS42L52_ADCB_VOL, 0x00 }, /* r17 ADCB Volume */ 82 { CS42L52_ADCA_MIXER_VOL, 0x80 }, /* r18 ADCA Mixer Volume */ 83 { CS42L52_ADCB_MIXER_VOL, 0x80 }, /* r19 ADCB Mixer Volume */ 84 { CS42L52_PCMA_MIXER_VOL, 0x00 }, /* r1A PCMA Mixer Volume */ 85 { CS42L52_PCMB_MIXER_VOL, 0x00 }, /* r1B PCMB Mixer Volume */ 86 { CS42L52_BEEP_FREQ, 0x00 }, /* r1C Beep Freq on Time */ 87 { CS42L52_BEEP_VOL, 0x00 }, /* r1D Beep Volume off Time */ 88 { CS42L52_BEEP_TONE_CTL, 0x00 }, /* r1E Beep Tone Cfg. */ 89 { CS42L52_TONE_CTL, 0x00 }, /* r1F Tone Ctl */ 90 { CS42L52_MASTERA_VOL, 0x00 }, /* r20 Master A Volume */ 91 { CS42L52_MASTERB_VOL, 0x00 }, /* r21 Master B Volume */ 92 { CS42L52_HPA_VOL, 0x00 }, /* r22 Headphone A Volume */ 93 { CS42L52_HPB_VOL, 0x00 }, /* r23 Headphone B Volume */ 94 { CS42L52_SPKA_VOL, 0x00 }, /* r24 Speaker A Volume */ 95 { CS42L52_SPKB_VOL, 0x00 }, /* r25 Speaker B Volume */ 96 { CS42L52_ADC_PCM_MIXER, 0x00 }, /* r26 Channel Mixer and Swap */ 97 { CS42L52_LIMITER_CTL1, 0x00 }, /* r27 Limit Ctl 1 Thresholds */ 98 { CS42L52_LIMITER_CTL2, 0x7F }, /* r28 Limit Ctl 2 Release Rate */ 99 { CS42L52_LIMITER_AT_RATE, 0xC0 }, /* r29 Limiter Attack Rate */ 100 { CS42L52_ALC_CTL, 0x00 }, /* r2A ALC Ctl 1 Attack Rate */ 101 { CS42L52_ALC_RATE, 0x3F }, /* r2B ALC Release Rate */ 102 { CS42L52_ALC_THRESHOLD, 0x3f }, /* r2C ALC Thresholds */ 103 { CS42L52_NOISE_GATE_CTL, 0x00 }, /* r2D Noise Gate Ctl */ 104 { CS42L52_CLK_STATUS, 0x00 }, /* r2E Overflow and Clock Status */ 105 { CS42L52_BATT_COMPEN, 0x00 }, /* r2F battery Compensation */ 106 { CS42L52_BATT_LEVEL, 0x00 }, /* r30 VP Battery Level */ 107 { CS42L52_SPK_STATUS, 0x00 }, /* r31 Speaker Status */ 108 { CS42L52_TEM_CTL, 0x3B }, /* r32 Temp Ctl */ 109 { CS42L52_THE_FOLDBACK, 0x00 }, /* r33 Foldback */ 110 }; 111 112 static bool cs42l52_readable_register(struct device *dev, unsigned int reg) 113 { 114 switch (reg) { 115 case CS42L52_CHIP: 116 case CS42L52_PWRCTL1: 117 case CS42L52_PWRCTL2: 118 case CS42L52_PWRCTL3: 119 case CS42L52_CLK_CTL: 120 case CS42L52_IFACE_CTL1: 121 case CS42L52_IFACE_CTL2: 122 case CS42L52_ADC_PGA_A: 123 case CS42L52_ADC_PGA_B: 124 case CS42L52_ANALOG_HPF_CTL: 125 case CS42L52_ADC_HPF_FREQ: 126 case CS42L52_ADC_MISC_CTL: 127 case CS42L52_PB_CTL1: 128 case CS42L52_MISC_CTL: 129 case CS42L52_PB_CTL2: 130 case CS42L52_MICA_CTL: 131 case CS42L52_MICB_CTL: 132 case CS42L52_PGAA_CTL: 133 case CS42L52_PGAB_CTL: 134 case CS42L52_PASSTHRUA_VOL: 135 case CS42L52_PASSTHRUB_VOL: 136 case CS42L52_ADCA_VOL: 137 case CS42L52_ADCB_VOL: 138 case CS42L52_ADCA_MIXER_VOL: 139 case CS42L52_ADCB_MIXER_VOL: 140 case CS42L52_PCMA_MIXER_VOL: 141 case CS42L52_PCMB_MIXER_VOL: 142 case CS42L52_BEEP_FREQ: 143 case CS42L52_BEEP_VOL: 144 case CS42L52_BEEP_TONE_CTL: 145 case CS42L52_TONE_CTL: 146 case CS42L52_MASTERA_VOL: 147 case CS42L52_MASTERB_VOL: 148 case CS42L52_HPA_VOL: 149 case CS42L52_HPB_VOL: 150 case CS42L52_SPKA_VOL: 151 case CS42L52_SPKB_VOL: 152 case CS42L52_ADC_PCM_MIXER: 153 case CS42L52_LIMITER_CTL1: 154 case CS42L52_LIMITER_CTL2: 155 case CS42L52_LIMITER_AT_RATE: 156 case CS42L52_ALC_CTL: 157 case CS42L52_ALC_RATE: 158 case CS42L52_ALC_THRESHOLD: 159 case CS42L52_NOISE_GATE_CTL: 160 case CS42L52_CLK_STATUS: 161 case CS42L52_BATT_COMPEN: 162 case CS42L52_BATT_LEVEL: 163 case CS42L52_SPK_STATUS: 164 case CS42L52_TEM_CTL: 165 case CS42L52_THE_FOLDBACK: 166 case CS42L52_CHARGE_PUMP: 167 return true; 168 default: 169 return false; 170 } 171 } 172 173 static bool cs42l52_volatile_register(struct device *dev, unsigned int reg) 174 { 175 switch (reg) { 176 case CS42L52_IFACE_CTL2: 177 case CS42L52_CLK_STATUS: 178 case CS42L52_BATT_LEVEL: 179 case CS42L52_SPK_STATUS: 180 case CS42L52_CHARGE_PUMP: 181 return 1; 182 default: 183 return 0; 184 } 185 } 186 187 static DECLARE_TLV_DB_SCALE(hl_tlv, -10200, 50, 0); 188 189 static DECLARE_TLV_DB_SCALE(hpd_tlv, -9600, 50, 1); 190 191 static DECLARE_TLV_DB_SCALE(ipd_tlv, -9600, 100, 0); 192 193 static DECLARE_TLV_DB_SCALE(mic_tlv, 1600, 100, 0); 194 195 static DECLARE_TLV_DB_SCALE(pga_tlv, -600, 50, 0); 196 197 static DECLARE_TLV_DB_SCALE(mix_tlv, -50, 50, 0); 198 199 static DECLARE_TLV_DB_SCALE(beep_tlv, -56, 200, 0); 200 201 static const unsigned int limiter_tlv[] = { 202 TLV_DB_RANGE_HEAD(2), 203 0, 2, TLV_DB_SCALE_ITEM(-3000, 600, 0), 204 3, 7, TLV_DB_SCALE_ITEM(-1200, 300, 0), 205 }; 206 207 static const char * const cs42l52_adca_text[] = { 208 "Input1A", "Input2A", "Input3A", "Input4A", "PGA Input Left"}; 209 210 static const char * const cs42l52_adcb_text[] = { 211 "Input1B", "Input2B", "Input3B", "Input4B", "PGA Input Right"}; 212 213 static const struct soc_enum adca_enum = 214 SOC_ENUM_SINGLE(CS42L52_ADC_PGA_A, 5, 215 ARRAY_SIZE(cs42l52_adca_text), cs42l52_adca_text); 216 217 static const struct soc_enum adcb_enum = 218 SOC_ENUM_SINGLE(CS42L52_ADC_PGA_B, 5, 219 ARRAY_SIZE(cs42l52_adcb_text), cs42l52_adcb_text); 220 221 static const struct snd_kcontrol_new adca_mux = 222 SOC_DAPM_ENUM("Left ADC Input Capture Mux", adca_enum); 223 224 static const struct snd_kcontrol_new adcb_mux = 225 SOC_DAPM_ENUM("Right ADC Input Capture Mux", adcb_enum); 226 227 static const char * const mic_bias_level_text[] = { 228 "0.5 +VA", "0.6 +VA", "0.7 +VA", 229 "0.8 +VA", "0.83 +VA", "0.91 +VA" 230 }; 231 232 static const struct soc_enum mic_bias_level_enum = 233 SOC_ENUM_SINGLE(CS42L52_IFACE_CTL2, 0, 234 ARRAY_SIZE(mic_bias_level_text), mic_bias_level_text); 235 236 static const char * const cs42l52_mic_text[] = { "MIC1", "MIC2" }; 237 238 static const struct soc_enum mica_enum = 239 SOC_ENUM_SINGLE(CS42L52_MICA_CTL, 5, 240 ARRAY_SIZE(cs42l52_mic_text), cs42l52_mic_text); 241 242 static const struct soc_enum micb_enum = 243 SOC_ENUM_SINGLE(CS42L52_MICB_CTL, 5, 244 ARRAY_SIZE(cs42l52_mic_text), cs42l52_mic_text); 245 246 static const char * const digital_output_mux_text[] = {"ADC", "DSP"}; 247 248 static const struct soc_enum digital_output_mux_enum = 249 SOC_ENUM_SINGLE(CS42L52_ADC_MISC_CTL, 6, 250 ARRAY_SIZE(digital_output_mux_text), 251 digital_output_mux_text); 252 253 static const struct snd_kcontrol_new digital_output_mux = 254 SOC_DAPM_ENUM("Digital Output Mux", digital_output_mux_enum); 255 256 static const char * const hp_gain_num_text[] = { 257 "0.3959", "0.4571", "0.5111", "0.6047", 258 "0.7099", "0.8399", "1.000", "1.1430" 259 }; 260 261 static const struct soc_enum hp_gain_enum = 262 SOC_ENUM_SINGLE(CS42L52_PB_CTL1, 5, 263 ARRAY_SIZE(hp_gain_num_text), hp_gain_num_text); 264 265 static const char * const beep_pitch_text[] = { 266 "C4", "C5", "D5", "E5", "F5", "G5", "A5", "B5", 267 "C6", "D6", "E6", "F6", "G6", "A6", "B6", "C7" 268 }; 269 270 static const struct soc_enum beep_pitch_enum = 271 SOC_ENUM_SINGLE(CS42L52_BEEP_FREQ, 4, 272 ARRAY_SIZE(beep_pitch_text), beep_pitch_text); 273 274 static const char * const beep_ontime_text[] = { 275 "86 ms", "430 ms", "780 ms", "1.20 s", "1.50 s", 276 "1.80 s", "2.20 s", "2.50 s", "2.80 s", "3.20 s", 277 "3.50 s", "3.80 s", "4.20 s", "4.50 s", "4.80 s", "5.20 s" 278 }; 279 280 static const struct soc_enum beep_ontime_enum = 281 SOC_ENUM_SINGLE(CS42L52_BEEP_FREQ, 0, 282 ARRAY_SIZE(beep_ontime_text), beep_ontime_text); 283 284 static const char * const beep_offtime_text[] = { 285 "1.23 s", "2.58 s", "3.90 s", "5.20 s", 286 "6.60 s", "8.05 s", "9.35 s", "10.80 s" 287 }; 288 289 static const struct soc_enum beep_offtime_enum = 290 SOC_ENUM_SINGLE(CS42L52_BEEP_VOL, 5, 291 ARRAY_SIZE(beep_offtime_text), beep_offtime_text); 292 293 static const char * const beep_config_text[] = { 294 "Off", "Single", "Multiple", "Continuous" 295 }; 296 297 static const struct soc_enum beep_config_enum = 298 SOC_ENUM_SINGLE(CS42L52_BEEP_TONE_CTL, 6, 299 ARRAY_SIZE(beep_config_text), beep_config_text); 300 301 static const char * const beep_bass_text[] = { 302 "50 Hz", "100 Hz", "200 Hz", "250 Hz" 303 }; 304 305 static const struct soc_enum beep_bass_enum = 306 SOC_ENUM_SINGLE(CS42L52_BEEP_TONE_CTL, 1, 307 ARRAY_SIZE(beep_bass_text), beep_bass_text); 308 309 static const char * const beep_treble_text[] = { 310 "5 kHz", "7 kHz", "10 kHz", " 15 kHz" 311 }; 312 313 static const struct soc_enum beep_treble_enum = 314 SOC_ENUM_SINGLE(CS42L52_BEEP_TONE_CTL, 3, 315 ARRAY_SIZE(beep_treble_text), beep_treble_text); 316 317 static const char * const ng_threshold_text[] = { 318 "-34dB", "-37dB", "-40dB", "-43dB", 319 "-46dB", "-52dB", "-58dB", "-64dB" 320 }; 321 322 static const struct soc_enum ng_threshold_enum = 323 SOC_ENUM_SINGLE(CS42L52_NOISE_GATE_CTL, 2, 324 ARRAY_SIZE(ng_threshold_text), ng_threshold_text); 325 326 static const char * const cs42l52_ng_delay_text[] = { 327 "50ms", "100ms", "150ms", "200ms"}; 328 329 static const struct soc_enum ng_delay_enum = 330 SOC_ENUM_SINGLE(CS42L52_NOISE_GATE_CTL, 0, 331 ARRAY_SIZE(cs42l52_ng_delay_text), cs42l52_ng_delay_text); 332 333 static const char * const cs42l52_ng_type_text[] = { 334 "Apply Specific", "Apply All" 335 }; 336 337 static const struct soc_enum ng_type_enum = 338 SOC_ENUM_SINGLE(CS42L52_NOISE_GATE_CTL, 6, 339 ARRAY_SIZE(cs42l52_ng_type_text), cs42l52_ng_type_text); 340 341 static const char * const left_swap_text[] = { 342 "Left", "LR 2", "Right"}; 343 344 static const char * const right_swap_text[] = { 345 "Right", "LR 2", "Left"}; 346 347 static const unsigned int swap_values[] = { 0, 1, 3 }; 348 349 static const struct soc_enum adca_swap_enum = 350 SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 2, 1, 351 ARRAY_SIZE(left_swap_text), 352 left_swap_text, 353 swap_values); 354 355 static const struct snd_kcontrol_new adca_mixer = 356 SOC_DAPM_ENUM("Route", adca_swap_enum); 357 358 static const struct soc_enum pcma_swap_enum = 359 SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 6, 1, 360 ARRAY_SIZE(left_swap_text), 361 left_swap_text, 362 swap_values); 363 364 static const struct snd_kcontrol_new pcma_mixer = 365 SOC_DAPM_ENUM("Route", pcma_swap_enum); 366 367 static const struct soc_enum adcb_swap_enum = 368 SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 0, 1, 369 ARRAY_SIZE(right_swap_text), 370 right_swap_text, 371 swap_values); 372 373 static const struct snd_kcontrol_new adcb_mixer = 374 SOC_DAPM_ENUM("Route", adcb_swap_enum); 375 376 static const struct soc_enum pcmb_swap_enum = 377 SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 4, 1, 378 ARRAY_SIZE(right_swap_text), 379 right_swap_text, 380 swap_values); 381 382 static const struct snd_kcontrol_new pcmb_mixer = 383 SOC_DAPM_ENUM("Route", pcmb_swap_enum); 384 385 386 static const struct snd_kcontrol_new passthrul_ctl = 387 SOC_DAPM_SINGLE("Switch", CS42L52_MISC_CTL, 6, 1, 0); 388 389 static const struct snd_kcontrol_new passthrur_ctl = 390 SOC_DAPM_SINGLE("Switch", CS42L52_MISC_CTL, 7, 1, 0); 391 392 static const struct snd_kcontrol_new spkl_ctl = 393 SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 0, 1, 1); 394 395 static const struct snd_kcontrol_new spkr_ctl = 396 SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 2, 1, 1); 397 398 static const struct snd_kcontrol_new hpl_ctl = 399 SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 4, 1, 1); 400 401 static const struct snd_kcontrol_new hpr_ctl = 402 SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 6, 1, 1); 403 404 static const struct snd_kcontrol_new cs42l52_snd_controls[] = { 405 406 SOC_DOUBLE_R_SX_TLV("Master Volume", CS42L52_MASTERA_VOL, 407 CS42L52_MASTERB_VOL, 0, 0x34, 0xE4, hl_tlv), 408 409 SOC_DOUBLE_R_SX_TLV("Headphone Volume", CS42L52_HPA_VOL, 410 CS42L52_HPB_VOL, 0, 0x34, 0xCC, hpd_tlv), 411 412 SOC_ENUM("Headphone Analog Gain", hp_gain_enum), 413 414 SOC_DOUBLE_R_SX_TLV("Speaker Volume", CS42L52_SPKA_VOL, 415 CS42L52_SPKB_VOL, 0, 0x1, 0xff, hl_tlv), 416 417 SOC_DOUBLE_R_SX_TLV("Bypass Volume", CS42L52_PASSTHRUA_VOL, 418 CS42L52_PASSTHRUB_VOL, 6, 0x18, 0x90, pga_tlv), 419 420 SOC_DOUBLE("Bypass Mute", CS42L52_MISC_CTL, 4, 5, 1, 0), 421 422 SOC_DOUBLE_R_TLV("MIC Gain Volume", CS42L52_MICA_CTL, 423 CS42L52_MICB_CTL, 0, 0x10, 0, mic_tlv), 424 425 SOC_ENUM("MIC Bias Level", mic_bias_level_enum), 426 427 SOC_DOUBLE_R_SX_TLV("ADC Volume", CS42L52_ADCA_VOL, 428 CS42L52_ADCB_VOL, 7, 0x80, 0xA0, ipd_tlv), 429 SOC_DOUBLE_R_SX_TLV("ADC Mixer Volume", 430 CS42L52_ADCA_MIXER_VOL, CS42L52_ADCB_MIXER_VOL, 431 6, 0x7f, 0x19, ipd_tlv), 432 433 SOC_DOUBLE("ADC Switch", CS42L52_ADC_MISC_CTL, 0, 1, 1, 0), 434 435 SOC_DOUBLE_R("ADC Mixer Switch", CS42L52_ADCA_MIXER_VOL, 436 CS42L52_ADCB_MIXER_VOL, 7, 1, 1), 437 438 SOC_DOUBLE_R_SX_TLV("PGA Volume", CS42L52_PGAA_CTL, 439 CS42L52_PGAB_CTL, 0, 0x28, 0x30, pga_tlv), 440 441 SOC_DOUBLE_R_SX_TLV("PCM Mixer Volume", 442 CS42L52_PCMA_MIXER_VOL, CS42L52_PCMB_MIXER_VOL, 443 0, 0x7f, 0x19, mix_tlv), 444 SOC_DOUBLE_R("PCM Mixer Switch", 445 CS42L52_PCMA_MIXER_VOL, CS42L52_PCMB_MIXER_VOL, 7, 1, 1), 446 447 SOC_ENUM("Beep Config", beep_config_enum), 448 SOC_ENUM("Beep Pitch", beep_pitch_enum), 449 SOC_ENUM("Beep on Time", beep_ontime_enum), 450 SOC_ENUM("Beep off Time", beep_offtime_enum), 451 SOC_SINGLE_SX_TLV("Beep Volume", CS42L52_BEEP_VOL, 452 0, 0x07, 0x1f, beep_tlv), 453 SOC_SINGLE("Beep Mixer Switch", CS42L52_BEEP_TONE_CTL, 5, 1, 1), 454 SOC_ENUM("Beep Treble Corner Freq", beep_treble_enum), 455 SOC_ENUM("Beep Bass Corner Freq", beep_bass_enum), 456 457 SOC_SINGLE("Tone Control Switch", CS42L52_BEEP_TONE_CTL, 0, 1, 1), 458 SOC_SINGLE_TLV("Treble Gain Volume", 459 CS42L52_TONE_CTL, 4, 15, 1, hl_tlv), 460 SOC_SINGLE_TLV("Bass Gain Volume", 461 CS42L52_TONE_CTL, 0, 15, 1, hl_tlv), 462 463 /* Limiter */ 464 SOC_SINGLE_TLV("Limiter Max Threshold Volume", 465 CS42L52_LIMITER_CTL1, 5, 7, 0, limiter_tlv), 466 SOC_SINGLE_TLV("Limiter Cushion Threshold Volume", 467 CS42L52_LIMITER_CTL1, 2, 7, 0, limiter_tlv), 468 SOC_SINGLE_TLV("Limiter Release Rate Volume", 469 CS42L52_LIMITER_CTL2, 0, 63, 0, limiter_tlv), 470 SOC_SINGLE_TLV("Limiter Attack Rate Volume", 471 CS42L52_LIMITER_AT_RATE, 0, 63, 0, limiter_tlv), 472 473 SOC_SINGLE("Limiter SR Switch", CS42L52_LIMITER_CTL1, 1, 1, 0), 474 SOC_SINGLE("Limiter ZC Switch", CS42L52_LIMITER_CTL1, 0, 1, 0), 475 SOC_SINGLE("Limiter Switch", CS42L52_LIMITER_CTL2, 7, 1, 0), 476 477 /* ALC */ 478 SOC_SINGLE_TLV("ALC Attack Rate Volume", CS42L52_ALC_CTL, 479 0, 63, 0, limiter_tlv), 480 SOC_SINGLE_TLV("ALC Release Rate Volume", CS42L52_ALC_RATE, 481 0, 63, 0, limiter_tlv), 482 SOC_SINGLE_TLV("ALC Max Threshold Volume", CS42L52_ALC_THRESHOLD, 483 5, 7, 0, limiter_tlv), 484 SOC_SINGLE_TLV("ALC Min Threshold Volume", CS42L52_ALC_THRESHOLD, 485 2, 7, 0, limiter_tlv), 486 487 SOC_DOUBLE_R("ALC SR Capture Switch", CS42L52_PGAA_CTL, 488 CS42L52_PGAB_CTL, 7, 1, 1), 489 SOC_DOUBLE_R("ALC ZC Capture Switch", CS42L52_PGAA_CTL, 490 CS42L52_PGAB_CTL, 6, 1, 1), 491 SOC_DOUBLE("ALC Capture Switch", CS42L52_ALC_CTL, 6, 7, 1, 0), 492 493 /* Noise gate */ 494 SOC_ENUM("NG Type Switch", ng_type_enum), 495 SOC_SINGLE("NG Enable Switch", CS42L52_NOISE_GATE_CTL, 6, 1, 0), 496 SOC_SINGLE("NG Boost Switch", CS42L52_NOISE_GATE_CTL, 5, 1, 1), 497 SOC_ENUM("NG Threshold", ng_threshold_enum), 498 SOC_ENUM("NG Delay", ng_delay_enum), 499 500 SOC_DOUBLE("HPF Switch", CS42L52_ANALOG_HPF_CTL, 5, 7, 1, 0), 501 502 SOC_DOUBLE("Analog SR Switch", CS42L52_ANALOG_HPF_CTL, 1, 3, 1, 1), 503 SOC_DOUBLE("Analog ZC Switch", CS42L52_ANALOG_HPF_CTL, 0, 2, 1, 1), 504 SOC_SINGLE("Digital SR Switch", CS42L52_MISC_CTL, 1, 1, 0), 505 SOC_SINGLE("Digital ZC Switch", CS42L52_MISC_CTL, 0, 1, 0), 506 SOC_SINGLE("Deemphasis Switch", CS42L52_MISC_CTL, 2, 1, 0), 507 508 SOC_SINGLE("Batt Compensation Switch", CS42L52_BATT_COMPEN, 7, 1, 0), 509 SOC_SINGLE("Batt VP Monitor Switch", CS42L52_BATT_COMPEN, 6, 1, 0), 510 SOC_SINGLE("Batt VP ref", CS42L52_BATT_COMPEN, 0, 0x0f, 0), 511 512 SOC_SINGLE("PGA AIN1L Switch", CS42L52_ADC_PGA_A, 0, 1, 0), 513 SOC_SINGLE("PGA AIN1R Switch", CS42L52_ADC_PGA_B, 0, 1, 0), 514 SOC_SINGLE("PGA AIN2L Switch", CS42L52_ADC_PGA_A, 1, 1, 0), 515 SOC_SINGLE("PGA AIN2R Switch", CS42L52_ADC_PGA_B, 1, 1, 0), 516 517 SOC_SINGLE("PGA AIN3L Switch", CS42L52_ADC_PGA_A, 2, 1, 0), 518 SOC_SINGLE("PGA AIN3R Switch", CS42L52_ADC_PGA_B, 2, 1, 0), 519 520 SOC_SINGLE("PGA AIN4L Switch", CS42L52_ADC_PGA_A, 3, 1, 0), 521 SOC_SINGLE("PGA AIN4R Switch", CS42L52_ADC_PGA_B, 3, 1, 0), 522 523 SOC_SINGLE("PGA MICA Switch", CS42L52_ADC_PGA_A, 4, 1, 0), 524 SOC_SINGLE("PGA MICB Switch", CS42L52_ADC_PGA_B, 4, 1, 0), 525 526 }; 527 528 static const struct snd_kcontrol_new cs42l52_mica_controls[] = { 529 SOC_ENUM("MICA Select", mica_enum), 530 }; 531 532 static const struct snd_kcontrol_new cs42l52_micb_controls[] = { 533 SOC_ENUM("MICB Select", micb_enum), 534 }; 535 536 static int cs42l52_add_mic_controls(struct snd_soc_codec *codec) 537 { 538 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 539 struct cs42l52_platform_data *pdata = &cs42l52->pdata; 540 541 if (!pdata->mica_diff_cfg) 542 snd_soc_add_codec_controls(codec, cs42l52_mica_controls, 543 ARRAY_SIZE(cs42l52_mica_controls)); 544 545 if (!pdata->micb_diff_cfg) 546 snd_soc_add_codec_controls(codec, cs42l52_micb_controls, 547 ARRAY_SIZE(cs42l52_micb_controls)); 548 549 return 0; 550 } 551 552 static const struct snd_soc_dapm_widget cs42l52_dapm_widgets[] = { 553 554 SND_SOC_DAPM_INPUT("AIN1L"), 555 SND_SOC_DAPM_INPUT("AIN1R"), 556 SND_SOC_DAPM_INPUT("AIN2L"), 557 SND_SOC_DAPM_INPUT("AIN2R"), 558 SND_SOC_DAPM_INPUT("AIN3L"), 559 SND_SOC_DAPM_INPUT("AIN3R"), 560 SND_SOC_DAPM_INPUT("AIN4L"), 561 SND_SOC_DAPM_INPUT("AIN4R"), 562 SND_SOC_DAPM_INPUT("MICA"), 563 SND_SOC_DAPM_INPUT("MICB"), 564 SND_SOC_DAPM_SIGGEN("Beep"), 565 566 SND_SOC_DAPM_AIF_OUT("AIFOUTL", NULL, 0, 567 SND_SOC_NOPM, 0, 0), 568 SND_SOC_DAPM_AIF_OUT("AIFOUTR", NULL, 0, 569 SND_SOC_NOPM, 0, 0), 570 571 SND_SOC_DAPM_ADC("ADC Left", NULL, CS42L52_PWRCTL1, 1, 1), 572 SND_SOC_DAPM_ADC("ADC Right", NULL, CS42L52_PWRCTL1, 2, 1), 573 SND_SOC_DAPM_PGA("PGA Left", CS42L52_PWRCTL1, 3, 1, NULL, 0), 574 SND_SOC_DAPM_PGA("PGA Right", CS42L52_PWRCTL1, 4, 1, NULL, 0), 575 576 SND_SOC_DAPM_MUX("ADC Left Mux", SND_SOC_NOPM, 0, 0, &adca_mux), 577 SND_SOC_DAPM_MUX("ADC Right Mux", SND_SOC_NOPM, 0, 0, &adcb_mux), 578 579 SND_SOC_DAPM_MUX("ADC Left Swap", SND_SOC_NOPM, 580 0, 0, &adca_mixer), 581 SND_SOC_DAPM_MUX("ADC Right Swap", SND_SOC_NOPM, 582 0, 0, &adcb_mixer), 583 584 SND_SOC_DAPM_MUX("Output Mux", SND_SOC_NOPM, 585 0, 0, &digital_output_mux), 586 587 SND_SOC_DAPM_PGA("PGA MICA", CS42L52_PWRCTL2, 1, 1, NULL, 0), 588 SND_SOC_DAPM_PGA("PGA MICB", CS42L52_PWRCTL2, 2, 1, NULL, 0), 589 590 SND_SOC_DAPM_SUPPLY("Mic Bias", CS42L52_PWRCTL2, 0, 1, NULL, 0), 591 SND_SOC_DAPM_SUPPLY("Charge Pump", CS42L52_PWRCTL1, 7, 1, NULL, 0), 592 593 SND_SOC_DAPM_AIF_IN("AIFINL", NULL, 0, 594 SND_SOC_NOPM, 0, 0), 595 SND_SOC_DAPM_AIF_IN("AIFINR", NULL, 0, 596 SND_SOC_NOPM, 0, 0), 597 598 SND_SOC_DAPM_DAC("DAC Left", NULL, SND_SOC_NOPM, 0, 0), 599 SND_SOC_DAPM_DAC("DAC Right", NULL, SND_SOC_NOPM, 0, 0), 600 601 SND_SOC_DAPM_SWITCH("Bypass Left", CS42L52_MISC_CTL, 602 6, 0, &passthrul_ctl), 603 SND_SOC_DAPM_SWITCH("Bypass Right", CS42L52_MISC_CTL, 604 7, 0, &passthrur_ctl), 605 606 SND_SOC_DAPM_MUX("PCM Left Swap", SND_SOC_NOPM, 607 0, 0, &pcma_mixer), 608 SND_SOC_DAPM_MUX("PCM Right Swap", SND_SOC_NOPM, 609 0, 0, &pcmb_mixer), 610 611 SND_SOC_DAPM_SWITCH("HP Left Amp", SND_SOC_NOPM, 0, 0, &hpl_ctl), 612 SND_SOC_DAPM_SWITCH("HP Right Amp", SND_SOC_NOPM, 0, 0, &hpr_ctl), 613 614 SND_SOC_DAPM_SWITCH("SPK Left Amp", SND_SOC_NOPM, 0, 0, &spkl_ctl), 615 SND_SOC_DAPM_SWITCH("SPK Right Amp", SND_SOC_NOPM, 0, 0, &spkr_ctl), 616 617 SND_SOC_DAPM_OUTPUT("HPOUTA"), 618 SND_SOC_DAPM_OUTPUT("HPOUTB"), 619 SND_SOC_DAPM_OUTPUT("SPKOUTA"), 620 SND_SOC_DAPM_OUTPUT("SPKOUTB"), 621 622 }; 623 624 static const struct snd_soc_dapm_route cs42l52_audio_map[] = { 625 626 {"Capture", NULL, "AIFOUTL"}, 627 {"Capture", NULL, "AIFOUTL"}, 628 629 {"AIFOUTL", NULL, "Output Mux"}, 630 {"AIFOUTR", NULL, "Output Mux"}, 631 632 {"Output Mux", "ADC", "ADC Left"}, 633 {"Output Mux", "ADC", "ADC Right"}, 634 635 {"ADC Left", NULL, "Charge Pump"}, 636 {"ADC Right", NULL, "Charge Pump"}, 637 638 {"Charge Pump", NULL, "ADC Left Mux"}, 639 {"Charge Pump", NULL, "ADC Right Mux"}, 640 641 {"ADC Left Mux", "Input1A", "AIN1L"}, 642 {"ADC Right Mux", "Input1B", "AIN1R"}, 643 {"ADC Left Mux", "Input2A", "AIN2L"}, 644 {"ADC Right Mux", "Input2B", "AIN2R"}, 645 {"ADC Left Mux", "Input3A", "AIN3L"}, 646 {"ADC Right Mux", "Input3B", "AIN3R"}, 647 {"ADC Left Mux", "Input4A", "AIN4L"}, 648 {"ADC Right Mux", "Input4B", "AIN4R"}, 649 {"ADC Left Mux", "PGA Input Left", "PGA Left"}, 650 {"ADC Right Mux", "PGA Input Right" , "PGA Right"}, 651 652 {"PGA Left", "Switch", "AIN1L"}, 653 {"PGA Right", "Switch", "AIN1R"}, 654 {"PGA Left", "Switch", "AIN2L"}, 655 {"PGA Right", "Switch", "AIN2R"}, 656 {"PGA Left", "Switch", "AIN3L"}, 657 {"PGA Right", "Switch", "AIN3R"}, 658 {"PGA Left", "Switch", "AIN4L"}, 659 {"PGA Right", "Switch", "AIN4R"}, 660 661 {"PGA Left", "Switch", "PGA MICA"}, 662 {"PGA MICA", NULL, "MICA"}, 663 664 {"PGA Right", "Switch", "PGA MICB"}, 665 {"PGA MICB", NULL, "MICB"}, 666 667 {"HPOUTA", NULL, "HP Left Amp"}, 668 {"HPOUTB", NULL, "HP Right Amp"}, 669 {"HP Left Amp", NULL, "Bypass Left"}, 670 {"HP Right Amp", NULL, "Bypass Right"}, 671 {"Bypass Left", "Switch", "PGA Left"}, 672 {"Bypass Right", "Switch", "PGA Right"}, 673 {"HP Left Amp", "Switch", "DAC Left"}, 674 {"HP Right Amp", "Switch", "DAC Right"}, 675 676 {"SPKOUTA", NULL, "SPK Left Amp"}, 677 {"SPKOUTB", NULL, "SPK Right Amp"}, 678 679 {"SPK Left Amp", NULL, "Beep"}, 680 {"SPK Right Amp", NULL, "Beep"}, 681 {"SPK Left Amp", "Switch", "Playback"}, 682 {"SPK Right Amp", "Switch", "Playback"}, 683 684 {"DAC Left", NULL, "Beep"}, 685 {"DAC Right", NULL, "Beep"}, 686 {"DAC Left", NULL, "Playback"}, 687 {"DAC Right", NULL, "Playback"}, 688 689 {"Output Mux", "DSP", "Playback"}, 690 {"Output Mux", "DSP", "Playback"}, 691 692 {"AIFINL", NULL, "Playback"}, 693 {"AIFINR", NULL, "Playback"}, 694 695 }; 696 697 struct cs42l52_clk_para { 698 u32 mclk; 699 u32 rate; 700 u8 speed; 701 u8 group; 702 u8 videoclk; 703 u8 ratio; 704 u8 mclkdiv2; 705 }; 706 707 static const struct cs42l52_clk_para clk_map_table[] = { 708 /*8k*/ 709 {12288000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 710 {18432000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 711 {12000000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 0}, 712 {24000000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 1}, 713 {27000000, 8000, CLK_QS_MODE, CLK_32K, CLK_27M_MCLK, CLK_R_125, 0}, 714 715 /*11.025k*/ 716 {11289600, 11025, CLK_QS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 717 {16934400, 11025, CLK_QS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 718 719 /*16k*/ 720 {12288000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 721 {18432000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 722 {12000000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 0}, 723 {24000000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 1}, 724 {27000000, 16000, CLK_HS_MODE, CLK_32K, CLK_27M_MCLK, CLK_R_125, 1}, 725 726 /*22.05k*/ 727 {11289600, 22050, CLK_HS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 728 {16934400, 22050, CLK_HS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 729 730 /* 32k */ 731 {12288000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 732 {18432000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 733 {12000000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 0}, 734 {24000000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 1}, 735 {27000000, 32000, CLK_SS_MODE, CLK_32K, CLK_27M_MCLK, CLK_R_125, 0}, 736 737 /* 44.1k */ 738 {11289600, 44100, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 739 {16934400, 44100, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 740 741 /* 48k */ 742 {12288000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 743 {18432000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 744 {12000000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 0}, 745 {24000000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 1}, 746 {27000000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_27M_MCLK, CLK_R_125, 1}, 747 748 /* 88.2k */ 749 {11289600, 88200, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 750 {16934400, 88200, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 751 752 /* 96k */ 753 {12288000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 754 {18432000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 755 {12000000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 0}, 756 {24000000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 1}, 757 }; 758 759 static int cs42l52_get_clk(int mclk, int rate) 760 { 761 int i, ret = -EINVAL; 762 u_int mclk1, mclk2 = 0; 763 764 for (i = 0; i < ARRAY_SIZE(clk_map_table); i++) { 765 if (clk_map_table[i].rate == rate) { 766 mclk1 = clk_map_table[i].mclk; 767 if (abs(mclk - mclk1) < abs(mclk - mclk2)) { 768 mclk2 = mclk1; 769 ret = i; 770 } 771 } 772 } 773 return ret; 774 } 775 776 static int cs42l52_set_sysclk(struct snd_soc_dai *codec_dai, 777 int clk_id, unsigned int freq, int dir) 778 { 779 struct snd_soc_codec *codec = codec_dai->codec; 780 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 781 782 if ((freq >= CS42L52_MIN_CLK) && (freq <= CS42L52_MAX_CLK)) { 783 cs42l52->sysclk = freq; 784 } else { 785 dev_err(codec->dev, "Invalid freq parameter\n"); 786 return -EINVAL; 787 } 788 return 0; 789 } 790 791 static int cs42l52_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) 792 { 793 struct snd_soc_codec *codec = codec_dai->codec; 794 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 795 u8 iface = 0; 796 797 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 798 case SND_SOC_DAIFMT_CBM_CFM: 799 iface = CS42L52_IFACE_CTL1_MASTER; 800 break; 801 case SND_SOC_DAIFMT_CBS_CFS: 802 iface = CS42L52_IFACE_CTL1_SLAVE; 803 break; 804 default: 805 return -EINVAL; 806 } 807 808 /* interface format */ 809 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 810 case SND_SOC_DAIFMT_I2S: 811 iface |= CS42L52_IFACE_CTL1_ADC_FMT_I2S | 812 CS42L52_IFACE_CTL1_DAC_FMT_I2S; 813 break; 814 case SND_SOC_DAIFMT_RIGHT_J: 815 iface |= CS42L52_IFACE_CTL1_DAC_FMT_RIGHT_J; 816 break; 817 case SND_SOC_DAIFMT_LEFT_J: 818 iface |= CS42L52_IFACE_CTL1_ADC_FMT_LEFT_J | 819 CS42L52_IFACE_CTL1_DAC_FMT_LEFT_J; 820 break; 821 case SND_SOC_DAIFMT_DSP_A: 822 iface |= CS42L52_IFACE_CTL1_DSP_MODE_EN; 823 break; 824 case SND_SOC_DAIFMT_DSP_B: 825 break; 826 default: 827 return -EINVAL; 828 } 829 830 /* clock inversion */ 831 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 832 case SND_SOC_DAIFMT_NB_NF: 833 break; 834 case SND_SOC_DAIFMT_IB_IF: 835 iface |= CS42L52_IFACE_CTL1_INV_SCLK; 836 break; 837 case SND_SOC_DAIFMT_IB_NF: 838 iface |= CS42L52_IFACE_CTL1_INV_SCLK; 839 break; 840 case SND_SOC_DAIFMT_NB_IF: 841 break; 842 default: 843 return -EINVAL; 844 } 845 cs42l52->config.format = iface; 846 snd_soc_write(codec, CS42L52_IFACE_CTL1, cs42l52->config.format); 847 848 return 0; 849 } 850 851 static int cs42l52_digital_mute(struct snd_soc_dai *dai, int mute) 852 { 853 struct snd_soc_codec *codec = dai->codec; 854 855 if (mute) 856 snd_soc_update_bits(codec, CS42L52_PB_CTL1, 857 CS42L52_PB_CTL1_MUTE_MASK, 858 CS42L52_PB_CTL1_MUTE); 859 else 860 snd_soc_update_bits(codec, CS42L52_PB_CTL1, 861 CS42L52_PB_CTL1_MUTE_MASK, 862 CS42L52_PB_CTL1_UNMUTE); 863 864 return 0; 865 } 866 867 static int cs42l52_pcm_hw_params(struct snd_pcm_substream *substream, 868 struct snd_pcm_hw_params *params, 869 struct snd_soc_dai *dai) 870 { 871 struct snd_soc_codec *codec = dai->codec; 872 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 873 u32 clk = 0; 874 int index; 875 876 index = cs42l52_get_clk(cs42l52->sysclk, params_rate(params)); 877 if (index >= 0) { 878 cs42l52->sysclk = clk_map_table[index].mclk; 879 880 clk |= (clk_map_table[index].speed << CLK_SPEED_SHIFT) | 881 (clk_map_table[index].group << CLK_32K_SR_SHIFT) | 882 (clk_map_table[index].videoclk << CLK_27M_MCLK_SHIFT) | 883 (clk_map_table[index].ratio << CLK_RATIO_SHIFT) | 884 clk_map_table[index].mclkdiv2; 885 886 snd_soc_write(codec, CS42L52_CLK_CTL, clk); 887 } else { 888 dev_err(codec->dev, "can't get correct mclk\n"); 889 return -EINVAL; 890 } 891 892 return 0; 893 } 894 895 static int cs42l52_set_bias_level(struct snd_soc_codec *codec, 896 enum snd_soc_bias_level level) 897 { 898 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 899 900 switch (level) { 901 case SND_SOC_BIAS_ON: 902 break; 903 case SND_SOC_BIAS_PREPARE: 904 snd_soc_update_bits(codec, CS42L52_PWRCTL1, 905 CS42L52_PWRCTL1_PDN_CODEC, 0); 906 break; 907 case SND_SOC_BIAS_STANDBY: 908 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { 909 regcache_cache_only(cs42l52->regmap, false); 910 regcache_sync(cs42l52->regmap); 911 } 912 snd_soc_write(codec, CS42L52_PWRCTL1, CS42L52_PWRCTL1_PDN_ALL); 913 break; 914 case SND_SOC_BIAS_OFF: 915 snd_soc_write(codec, CS42L52_PWRCTL1, CS42L52_PWRCTL1_PDN_ALL); 916 regcache_cache_only(cs42l52->regmap, true); 917 break; 918 } 919 codec->dapm.bias_level = level; 920 921 return 0; 922 } 923 924 #define CS42L52_RATES (SNDRV_PCM_RATE_8000_96000) 925 926 #define CS42L52_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE | \ 927 SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_U18_3LE | \ 928 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_U20_3LE | \ 929 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_U24_LE) 930 931 static struct snd_soc_dai_ops cs42l52_ops = { 932 .hw_params = cs42l52_pcm_hw_params, 933 .digital_mute = cs42l52_digital_mute, 934 .set_fmt = cs42l52_set_fmt, 935 .set_sysclk = cs42l52_set_sysclk, 936 }; 937 938 static struct snd_soc_dai_driver cs42l52_dai = { 939 .name = "cs42l52", 940 .playback = { 941 .stream_name = "Playback", 942 .channels_min = 1, 943 .channels_max = 2, 944 .rates = CS42L52_RATES, 945 .formats = CS42L52_FORMATS, 946 }, 947 .capture = { 948 .stream_name = "Capture", 949 .channels_min = 1, 950 .channels_max = 2, 951 .rates = CS42L52_RATES, 952 .formats = CS42L52_FORMATS, 953 }, 954 .ops = &cs42l52_ops, 955 }; 956 957 static int cs42l52_suspend(struct snd_soc_codec *codec) 958 { 959 cs42l52_set_bias_level(codec, SND_SOC_BIAS_OFF); 960 961 return 0; 962 } 963 964 static int cs42l52_resume(struct snd_soc_codec *codec) 965 { 966 cs42l52_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 967 968 return 0; 969 } 970 971 #if IS_ENABLED(CONFIG_INPUT) 972 static int beep_rates[] = { 973 261, 522, 585, 667, 706, 774, 889, 1000, 974 1043, 1200, 1333, 1412, 1600, 1714, 2000, 2182 975 }; 976 977 static void cs42l52_beep_work(struct work_struct *work) 978 { 979 struct cs42l52_private *cs42l52 = 980 container_of(work, struct cs42l52_private, beep_work); 981 struct snd_soc_codec *codec = cs42l52->codec; 982 struct snd_soc_dapm_context *dapm = &codec->dapm; 983 int i; 984 int val = 0; 985 int best = 0; 986 987 if (cs42l52->beep_rate) { 988 for (i = 0; i < ARRAY_SIZE(beep_rates); i++) { 989 if (abs(cs42l52->beep_rate - beep_rates[i]) < 990 abs(cs42l52->beep_rate - beep_rates[best])) 991 best = i; 992 } 993 994 dev_dbg(codec->dev, "Set beep rate %dHz for requested %dHz\n", 995 beep_rates[best], cs42l52->beep_rate); 996 997 val = (best << CS42L52_BEEP_RATE_SHIFT); 998 999 snd_soc_dapm_enable_pin(dapm, "Beep"); 1000 } else { 1001 dev_dbg(codec->dev, "Disabling beep\n"); 1002 snd_soc_dapm_disable_pin(dapm, "Beep"); 1003 } 1004 1005 snd_soc_update_bits(codec, CS42L52_BEEP_FREQ, 1006 CS42L52_BEEP_RATE_MASK, val); 1007 1008 snd_soc_dapm_sync(dapm); 1009 } 1010 1011 /* For usability define a way of injecting beep events for the device - 1012 * many systems will not have a keyboard. 1013 */ 1014 static int cs42l52_beep_event(struct input_dev *dev, unsigned int type, 1015 unsigned int code, int hz) 1016 { 1017 struct snd_soc_codec *codec = input_get_drvdata(dev); 1018 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 1019 1020 dev_dbg(codec->dev, "Beep event %x %x\n", code, hz); 1021 1022 switch (code) { 1023 case SND_BELL: 1024 if (hz) 1025 hz = 261; 1026 case SND_TONE: 1027 break; 1028 default: 1029 return -1; 1030 } 1031 1032 /* Kick the beep from a workqueue */ 1033 cs42l52->beep_rate = hz; 1034 schedule_work(&cs42l52->beep_work); 1035 return 0; 1036 } 1037 1038 static ssize_t cs42l52_beep_set(struct device *dev, 1039 struct device_attribute *attr, 1040 const char *buf, size_t count) 1041 { 1042 struct cs42l52_private *cs42l52 = dev_get_drvdata(dev); 1043 long int time; 1044 int ret; 1045 1046 ret = kstrtol(buf, 10, &time); 1047 if (ret != 0) 1048 return ret; 1049 1050 input_event(cs42l52->beep, EV_SND, SND_TONE, time); 1051 1052 return count; 1053 } 1054 1055 static DEVICE_ATTR(beep, 0200, NULL, cs42l52_beep_set); 1056 1057 static void cs42l52_init_beep(struct snd_soc_codec *codec) 1058 { 1059 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 1060 int ret; 1061 1062 cs42l52->beep = devm_input_allocate_device(codec->dev); 1063 if (!cs42l52->beep) { 1064 dev_err(codec->dev, "Failed to allocate beep device\n"); 1065 return; 1066 } 1067 1068 INIT_WORK(&cs42l52->beep_work, cs42l52_beep_work); 1069 cs42l52->beep_rate = 0; 1070 1071 cs42l52->beep->name = "CS42L52 Beep Generator"; 1072 cs42l52->beep->phys = dev_name(codec->dev); 1073 cs42l52->beep->id.bustype = BUS_I2C; 1074 1075 cs42l52->beep->evbit[0] = BIT_MASK(EV_SND); 1076 cs42l52->beep->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE); 1077 cs42l52->beep->event = cs42l52_beep_event; 1078 cs42l52->beep->dev.parent = codec->dev; 1079 input_set_drvdata(cs42l52->beep, codec); 1080 1081 ret = input_register_device(cs42l52->beep); 1082 if (ret != 0) { 1083 cs42l52->beep = NULL; 1084 dev_err(codec->dev, "Failed to register beep device\n"); 1085 } 1086 1087 ret = device_create_file(codec->dev, &dev_attr_beep); 1088 if (ret != 0) { 1089 dev_err(codec->dev, "Failed to create keyclick file: %d\n", 1090 ret); 1091 } 1092 } 1093 1094 static void cs42l52_free_beep(struct snd_soc_codec *codec) 1095 { 1096 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 1097 1098 device_remove_file(codec->dev, &dev_attr_beep); 1099 cancel_work_sync(&cs42l52->beep_work); 1100 cs42l52->beep = NULL; 1101 1102 snd_soc_update_bits(codec, CS42L52_BEEP_TONE_CTL, 1103 CS42L52_BEEP_EN_MASK, 0); 1104 } 1105 #else 1106 static void cs42l52_init_beep(struct snd_soc_codec *codec) 1107 { 1108 } 1109 1110 static void cs42l52_free_beep(struct snd_soc_codec *codec) 1111 { 1112 } 1113 #endif 1114 1115 static int cs42l52_probe(struct snd_soc_codec *codec) 1116 { 1117 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 1118 int ret; 1119 1120 codec->control_data = cs42l52->regmap; 1121 ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_REGMAP); 1122 if (ret < 0) { 1123 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); 1124 return ret; 1125 } 1126 regcache_cache_only(cs42l52->regmap, true); 1127 1128 cs42l52_add_mic_controls(codec); 1129 1130 cs42l52_init_beep(codec); 1131 1132 cs42l52_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 1133 1134 cs42l52->sysclk = CS42L52_DEFAULT_CLK; 1135 cs42l52->config.format = CS42L52_DEFAULT_FORMAT; 1136 1137 return ret; 1138 } 1139 1140 static int cs42l52_remove(struct snd_soc_codec *codec) 1141 { 1142 cs42l52_free_beep(codec); 1143 cs42l52_set_bias_level(codec, SND_SOC_BIAS_OFF); 1144 1145 return 0; 1146 } 1147 1148 static struct snd_soc_codec_driver soc_codec_dev_cs42l52 = { 1149 .probe = cs42l52_probe, 1150 .remove = cs42l52_remove, 1151 .suspend = cs42l52_suspend, 1152 .resume = cs42l52_resume, 1153 .set_bias_level = cs42l52_set_bias_level, 1154 1155 .dapm_widgets = cs42l52_dapm_widgets, 1156 .num_dapm_widgets = ARRAY_SIZE(cs42l52_dapm_widgets), 1157 .dapm_routes = cs42l52_audio_map, 1158 .num_dapm_routes = ARRAY_SIZE(cs42l52_audio_map), 1159 1160 .controls = cs42l52_snd_controls, 1161 .num_controls = ARRAY_SIZE(cs42l52_snd_controls), 1162 }; 1163 1164 /* Current and threshold powerup sequence Pg37 */ 1165 static const struct reg_default cs42l52_threshold_patch[] = { 1166 1167 { 0x00, 0x99 }, 1168 { 0x3E, 0xBA }, 1169 { 0x47, 0x80 }, 1170 { 0x32, 0xBB }, 1171 { 0x32, 0x3B }, 1172 { 0x00, 0x00 }, 1173 1174 }; 1175 1176 static struct regmap_config cs42l52_regmap = { 1177 .reg_bits = 8, 1178 .val_bits = 8, 1179 1180 .max_register = CS42L52_MAX_REGISTER, 1181 .reg_defaults = cs42l52_reg_defaults, 1182 .num_reg_defaults = ARRAY_SIZE(cs42l52_reg_defaults), 1183 .readable_reg = cs42l52_readable_register, 1184 .volatile_reg = cs42l52_volatile_register, 1185 .cache_type = REGCACHE_RBTREE, 1186 }; 1187 1188 static int cs42l52_i2c_probe(struct i2c_client *i2c_client, 1189 const struct i2c_device_id *id) 1190 { 1191 struct cs42l52_private *cs42l52; 1192 struct cs42l52_platform_data *pdata = dev_get_platdata(&i2c_client->dev); 1193 int ret; 1194 unsigned int devid = 0; 1195 unsigned int reg; 1196 u32 val32; 1197 1198 cs42l52 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs42l52_private), 1199 GFP_KERNEL); 1200 if (cs42l52 == NULL) 1201 return -ENOMEM; 1202 cs42l52->dev = &i2c_client->dev; 1203 1204 cs42l52->regmap = devm_regmap_init_i2c(i2c_client, &cs42l52_regmap); 1205 if (IS_ERR(cs42l52->regmap)) { 1206 ret = PTR_ERR(cs42l52->regmap); 1207 dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret); 1208 return ret; 1209 } 1210 if (pdata) { 1211 cs42l52->pdata = *pdata; 1212 } else { 1213 pdata = devm_kzalloc(&i2c_client->dev, 1214 sizeof(struct cs42l52_platform_data), 1215 GFP_KERNEL); 1216 if (!pdata) { 1217 dev_err(&i2c_client->dev, "could not allocate pdata\n"); 1218 return -ENOMEM; 1219 } 1220 if (i2c_client->dev.of_node) { 1221 if (of_property_read_bool(i2c_client->dev.of_node, 1222 "cirrus,mica-differential-cfg")) 1223 pdata->mica_diff_cfg = true; 1224 1225 if (of_property_read_bool(i2c_client->dev.of_node, 1226 "cirrus,micb-differential-cfg")) 1227 pdata->micb_diff_cfg = true; 1228 1229 if (of_property_read_u32(i2c_client->dev.of_node, 1230 "cirrus,micbias-lvl", &val32) >= 0) 1231 pdata->micbias_lvl = val32; 1232 1233 if (of_property_read_u32(i2c_client->dev.of_node, 1234 "cirrus,chgfreq-divisor", &val32) >= 0) 1235 pdata->chgfreq = val32; 1236 1237 pdata->reset_gpio = 1238 of_get_named_gpio(i2c_client->dev.of_node, 1239 "cirrus,reset-gpio", 0); 1240 } 1241 cs42l52->pdata = *pdata; 1242 } 1243 1244 if (cs42l52->pdata.reset_gpio) { 1245 ret = gpio_request_one(cs42l52->pdata.reset_gpio, 1246 GPIOF_OUT_INIT_HIGH, "CS42L52 /RST"); 1247 if (ret < 0) { 1248 dev_err(&i2c_client->dev, "Failed to request /RST %d: %d\n", 1249 cs42l52->pdata.reset_gpio, ret); 1250 return ret; 1251 } 1252 gpio_set_value_cansleep(cs42l52->pdata.reset_gpio, 0); 1253 gpio_set_value_cansleep(cs42l52->pdata.reset_gpio, 1); 1254 } 1255 1256 i2c_set_clientdata(i2c_client, cs42l52); 1257 1258 ret = regmap_register_patch(cs42l52->regmap, cs42l52_threshold_patch, 1259 ARRAY_SIZE(cs42l52_threshold_patch)); 1260 if (ret != 0) 1261 dev_warn(cs42l52->dev, "Failed to apply regmap patch: %d\n", 1262 ret); 1263 1264 ret = regmap_read(cs42l52->regmap, CS42L52_CHIP, ®); 1265 devid = reg & CS42L52_CHIP_ID_MASK; 1266 if (devid != CS42L52_CHIP_ID) { 1267 ret = -ENODEV; 1268 dev_err(&i2c_client->dev, 1269 "CS42L52 Device ID (%X). Expected %X\n", 1270 devid, CS42L52_CHIP_ID); 1271 return ret; 1272 } 1273 1274 dev_info(&i2c_client->dev, "Cirrus Logic CS42L52, Revision: %02X\n", 1275 reg & 0xFF); 1276 1277 /* Set Platform Data */ 1278 if (cs42l52->pdata.mica_diff_cfg) 1279 regmap_update_bits(cs42l52->regmap, CS42L52_MICA_CTL, 1280 CS42L52_MIC_CTL_TYPE_MASK, 1281 cs42l52->pdata.mica_diff_cfg << 1282 CS42L52_MIC_CTL_TYPE_SHIFT); 1283 1284 if (cs42l52->pdata.micb_diff_cfg) 1285 regmap_update_bits(cs42l52->regmap, CS42L52_MICB_CTL, 1286 CS42L52_MIC_CTL_TYPE_MASK, 1287 cs42l52->pdata.micb_diff_cfg << 1288 CS42L52_MIC_CTL_TYPE_SHIFT); 1289 1290 if (cs42l52->pdata.chgfreq) 1291 regmap_update_bits(cs42l52->regmap, CS42L52_CHARGE_PUMP, 1292 CS42L52_CHARGE_PUMP_MASK, 1293 cs42l52->pdata.chgfreq << 1294 CS42L52_CHARGE_PUMP_SHIFT); 1295 1296 if (cs42l52->pdata.micbias_lvl) 1297 regmap_update_bits(cs42l52->regmap, CS42L52_IFACE_CTL2, 1298 CS42L52_IFACE_CTL2_BIAS_LVL, 1299 cs42l52->pdata.micbias_lvl); 1300 1301 ret = snd_soc_register_codec(&i2c_client->dev, 1302 &soc_codec_dev_cs42l52, &cs42l52_dai, 1); 1303 if (ret < 0) 1304 return ret; 1305 return 0; 1306 } 1307 1308 static int cs42l52_i2c_remove(struct i2c_client *client) 1309 { 1310 snd_soc_unregister_codec(&client->dev); 1311 return 0; 1312 } 1313 1314 static const struct of_device_id cs42l52_of_match[] = { 1315 { .compatible = "cirrus,cs42l52", }, 1316 {}, 1317 }; 1318 MODULE_DEVICE_TABLE(of, cs42l52_of_match); 1319 1320 1321 static const struct i2c_device_id cs42l52_id[] = { 1322 { "cs42l52", 0 }, 1323 { } 1324 }; 1325 MODULE_DEVICE_TABLE(i2c, cs42l52_id); 1326 1327 static struct i2c_driver cs42l52_i2c_driver = { 1328 .driver = { 1329 .name = "cs42l52", 1330 .owner = THIS_MODULE, 1331 .of_match_table = cs42l52_of_match, 1332 }, 1333 .id_table = cs42l52_id, 1334 .probe = cs42l52_i2c_probe, 1335 .remove = cs42l52_i2c_remove, 1336 }; 1337 1338 module_i2c_driver(cs42l52_i2c_driver); 1339 1340 MODULE_DESCRIPTION("ASoC CS42L52 driver"); 1341 MODULE_AUTHOR("Georgi Vlaev, Nucleus Systems Ltd, <joe@nucleusys.com>"); 1342 MODULE_AUTHOR("Brian Austin, Cirrus Logic Inc, <brian.austin@cirrus.com>"); 1343 MODULE_LICENSE("GPL"); 1344