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/pm.h> 21 #include <linux/i2c.h> 22 #include <linux/input.h> 23 #include <linux/regmap.h> 24 #include <linux/slab.h> 25 #include <linux/workqueue.h> 26 #include <linux/platform_device.h> 27 #include <sound/core.h> 28 #include <sound/pcm.h> 29 #include <sound/pcm_params.h> 30 #include <sound/soc.h> 31 #include <sound/soc-dapm.h> 32 #include <sound/initval.h> 33 #include <sound/tlv.h> 34 #include <sound/cs42l52.h> 35 #include "cs42l52.h" 36 37 struct sp_config { 38 u8 spc, format, spfs; 39 u32 srate; 40 }; 41 42 struct cs42l52_private { 43 struct regmap *regmap; 44 struct snd_soc_codec *codec; 45 struct device *dev; 46 struct sp_config config; 47 struct cs42l52_platform_data pdata; 48 u32 sysclk; 49 u8 mclksel; 50 u32 mclk; 51 u8 flags; 52 #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE) 53 struct input_dev *beep; 54 struct work_struct beep_work; 55 int beep_rate; 56 #endif 57 }; 58 59 static const struct reg_default cs42l52_reg_defaults[] = { 60 { CS42L52_PWRCTL1, 0x9F }, /* r02 PWRCTL 1 */ 61 { CS42L52_PWRCTL2, 0x07 }, /* r03 PWRCTL 2 */ 62 { CS42L52_PWRCTL3, 0xFF }, /* r04 PWRCTL 3 */ 63 { CS42L52_CLK_CTL, 0xA0 }, /* r05 Clocking Ctl */ 64 { CS42L52_IFACE_CTL1, 0x00 }, /* r06 Interface Ctl 1 */ 65 { CS42L52_ADC_PGA_A, 0x80 }, /* r08 Input A Select */ 66 { CS42L52_ADC_PGA_B, 0x80 }, /* r09 Input B Select */ 67 { CS42L52_ANALOG_HPF_CTL, 0xA5 }, /* r0A Analog HPF Ctl */ 68 { CS42L52_ADC_HPF_FREQ, 0x00 }, /* r0B ADC HPF Corner Freq */ 69 { CS42L52_ADC_MISC_CTL, 0x00 }, /* r0C Misc. ADC Ctl */ 70 { CS42L52_PB_CTL1, 0x60 }, /* r0D Playback Ctl 1 */ 71 { CS42L52_MISC_CTL, 0x02 }, /* r0E Misc. Ctl */ 72 { CS42L52_PB_CTL2, 0x00 }, /* r0F Playback Ctl 2 */ 73 { CS42L52_MICA_CTL, 0x00 }, /* r10 MICA Amp Ctl */ 74 { CS42L52_MICB_CTL, 0x00 }, /* r11 MICB Amp Ctl */ 75 { CS42L52_PGAA_CTL, 0x00 }, /* r12 PGAA Vol, Misc. */ 76 { CS42L52_PGAB_CTL, 0x00 }, /* r13 PGAB Vol, Misc. */ 77 { CS42L52_PASSTHRUA_VOL, 0x00 }, /* r14 Bypass A Vol */ 78 { CS42L52_PASSTHRUB_VOL, 0x00 }, /* r15 Bypass B Vol */ 79 { CS42L52_ADCA_VOL, 0x00 }, /* r16 ADCA Volume */ 80 { CS42L52_ADCB_VOL, 0x00 }, /* r17 ADCB Volume */ 81 { CS42L52_ADCA_MIXER_VOL, 0x80 }, /* r18 ADCA Mixer Volume */ 82 { CS42L52_ADCB_MIXER_VOL, 0x80 }, /* r19 ADCB Mixer Volume */ 83 { CS42L52_PCMA_MIXER_VOL, 0x00 }, /* r1A PCMA Mixer Volume */ 84 { CS42L52_PCMB_MIXER_VOL, 0x00 }, /* r1B PCMB Mixer Volume */ 85 { CS42L52_BEEP_FREQ, 0x00 }, /* r1C Beep Freq on Time */ 86 { CS42L52_BEEP_VOL, 0x00 }, /* r1D Beep Volume off Time */ 87 { CS42L52_BEEP_TONE_CTL, 0x00 }, /* r1E Beep Tone Cfg. */ 88 { CS42L52_TONE_CTL, 0x00 }, /* r1F Tone Ctl */ 89 { CS42L52_MASTERA_VOL, 0x88 }, /* r20 Master A Volume */ 90 { CS42L52_MASTERB_VOL, 0x00 }, /* r21 Master B Volume */ 91 { CS42L52_HPA_VOL, 0x00 }, /* r22 Headphone A Volume */ 92 { CS42L52_HPB_VOL, 0x00 }, /* r23 Headphone B Volume */ 93 { CS42L52_SPKA_VOL, 0x00 }, /* r24 Speaker A Volume */ 94 { CS42L52_SPKB_VOL, 0x00 }, /* r25 Speaker B Volume */ 95 { CS42L52_ADC_PCM_MIXER, 0x00 }, /* r26 Channel Mixer and Swap */ 96 { CS42L52_LIMITER_CTL1, 0x00 }, /* r27 Limit Ctl 1 Thresholds */ 97 { CS42L52_LIMITER_CTL2, 0x7F }, /* r28 Limit Ctl 2 Release Rate */ 98 { CS42L52_LIMITER_AT_RATE, 0xC0 }, /* r29 Limiter Attack Rate */ 99 { CS42L52_ALC_CTL, 0x00 }, /* r2A ALC Ctl 1 Attack Rate */ 100 { CS42L52_ALC_RATE, 0x3F }, /* r2B ALC Release Rate */ 101 { CS42L52_ALC_THRESHOLD, 0x3f }, /* r2C ALC Thresholds */ 102 { CS42L52_NOISE_GATE_CTL, 0x00 }, /* r2D Noise Gate Ctl */ 103 { CS42L52_CLK_STATUS, 0x00 }, /* r2E Overflow and Clock Status */ 104 { CS42L52_BATT_COMPEN, 0x00 }, /* r2F battery Compensation */ 105 { CS42L52_BATT_LEVEL, 0x00 }, /* r30 VP Battery Level */ 106 { CS42L52_SPK_STATUS, 0x00 }, /* r31 Speaker Status */ 107 { CS42L52_TEM_CTL, 0x3B }, /* r32 Temp Ctl */ 108 { CS42L52_THE_FOLDBACK, 0x00 }, /* r33 Foldback */ 109 }; 110 111 static bool cs42l52_readable_register(struct device *dev, unsigned int reg) 112 { 113 switch (reg) { 114 case CS42L52_CHIP: 115 case CS42L52_PWRCTL1: 116 case CS42L52_PWRCTL2: 117 case CS42L52_PWRCTL3: 118 case CS42L52_CLK_CTL: 119 case CS42L52_IFACE_CTL1: 120 case CS42L52_IFACE_CTL2: 121 case CS42L52_ADC_PGA_A: 122 case CS42L52_ADC_PGA_B: 123 case CS42L52_ANALOG_HPF_CTL: 124 case CS42L52_ADC_HPF_FREQ: 125 case CS42L52_ADC_MISC_CTL: 126 case CS42L52_PB_CTL1: 127 case CS42L52_MISC_CTL: 128 case CS42L52_PB_CTL2: 129 case CS42L52_MICA_CTL: 130 case CS42L52_MICB_CTL: 131 case CS42L52_PGAA_CTL: 132 case CS42L52_PGAB_CTL: 133 case CS42L52_PASSTHRUA_VOL: 134 case CS42L52_PASSTHRUB_VOL: 135 case CS42L52_ADCA_VOL: 136 case CS42L52_ADCB_VOL: 137 case CS42L52_ADCA_MIXER_VOL: 138 case CS42L52_ADCB_MIXER_VOL: 139 case CS42L52_PCMA_MIXER_VOL: 140 case CS42L52_PCMB_MIXER_VOL: 141 case CS42L52_BEEP_FREQ: 142 case CS42L52_BEEP_VOL: 143 case CS42L52_BEEP_TONE_CTL: 144 case CS42L52_TONE_CTL: 145 case CS42L52_MASTERA_VOL: 146 case CS42L52_MASTERB_VOL: 147 case CS42L52_HPA_VOL: 148 case CS42L52_HPB_VOL: 149 case CS42L52_SPKA_VOL: 150 case CS42L52_SPKB_VOL: 151 case CS42L52_ADC_PCM_MIXER: 152 case CS42L52_LIMITER_CTL1: 153 case CS42L52_LIMITER_CTL2: 154 case CS42L52_LIMITER_AT_RATE: 155 case CS42L52_ALC_CTL: 156 case CS42L52_ALC_RATE: 157 case CS42L52_ALC_THRESHOLD: 158 case CS42L52_NOISE_GATE_CTL: 159 case CS42L52_CLK_STATUS: 160 case CS42L52_BATT_COMPEN: 161 case CS42L52_BATT_LEVEL: 162 case CS42L52_SPK_STATUS: 163 case CS42L52_TEM_CTL: 164 case CS42L52_THE_FOLDBACK: 165 case CS42L52_CHARGE_PUMP: 166 return true; 167 default: 168 return false; 169 } 170 } 171 172 static bool cs42l52_volatile_register(struct device *dev, unsigned int reg) 173 { 174 switch (reg) { 175 case CS42L52_IFACE_CTL2: 176 case CS42L52_CLK_STATUS: 177 case CS42L52_BATT_LEVEL: 178 case CS42L52_SPK_STATUS: 179 case CS42L52_CHARGE_PUMP: 180 return 1; 181 default: 182 return 0; 183 } 184 } 185 186 static DECLARE_TLV_DB_SCALE(hl_tlv, -10200, 50, 0); 187 188 static DECLARE_TLV_DB_SCALE(hpd_tlv, -9600, 50, 1); 189 190 static DECLARE_TLV_DB_SCALE(ipd_tlv, -9600, 100, 0); 191 192 static DECLARE_TLV_DB_SCALE(mic_tlv, 1600, 100, 0); 193 194 static DECLARE_TLV_DB_SCALE(pga_tlv, -600, 50, 0); 195 196 static const unsigned int limiter_tlv[] = { 197 TLV_DB_RANGE_HEAD(2), 198 0, 2, TLV_DB_SCALE_ITEM(-3000, 600, 0), 199 3, 7, TLV_DB_SCALE_ITEM(-1200, 300, 0), 200 }; 201 202 static const char * const cs42l52_adca_text[] = { 203 "Input1A", "Input2A", "Input3A", "Input4A", "PGA Input Left"}; 204 205 static const char * const cs42l52_adcb_text[] = { 206 "Input1B", "Input2B", "Input3B", "Input4B", "PGA Input Right"}; 207 208 static const struct soc_enum adca_enum = 209 SOC_ENUM_SINGLE(CS42L52_ADC_PGA_A, 5, 210 ARRAY_SIZE(cs42l52_adca_text), cs42l52_adca_text); 211 212 static const struct soc_enum adcb_enum = 213 SOC_ENUM_SINGLE(CS42L52_ADC_PGA_B, 5, 214 ARRAY_SIZE(cs42l52_adcb_text), cs42l52_adcb_text); 215 216 static const struct snd_kcontrol_new adca_mux = 217 SOC_DAPM_ENUM("Left ADC Input Capture Mux", adca_enum); 218 219 static const struct snd_kcontrol_new adcb_mux = 220 SOC_DAPM_ENUM("Right ADC Input Capture Mux", adcb_enum); 221 222 static const char * const mic_bias_level_text[] = { 223 "0.5 +VA", "0.6 +VA", "0.7 +VA", 224 "0.8 +VA", "0.83 +VA", "0.91 +VA" 225 }; 226 227 static const struct soc_enum mic_bias_level_enum = 228 SOC_ENUM_SINGLE(CS42L52_IFACE_CTL1, 0, 229 ARRAY_SIZE(mic_bias_level_text), mic_bias_level_text); 230 231 static const char * const cs42l52_mic_text[] = { "Single", "Differential" }; 232 233 static const struct soc_enum mica_enum = 234 SOC_ENUM_SINGLE(CS42L52_MICA_CTL, 5, 235 ARRAY_SIZE(cs42l52_mic_text), cs42l52_mic_text); 236 237 static const struct soc_enum micb_enum = 238 SOC_ENUM_SINGLE(CS42L52_MICB_CTL, 5, 239 ARRAY_SIZE(cs42l52_mic_text), cs42l52_mic_text); 240 241 static const struct snd_kcontrol_new mica_mux = 242 SOC_DAPM_ENUM("Left Mic Input Capture Mux", mica_enum); 243 244 static const struct snd_kcontrol_new micb_mux = 245 SOC_DAPM_ENUM("Right Mic Input Capture Mux", micb_enum); 246 247 static const char * const digital_output_mux_text[] = {"ADC", "DSP"}; 248 249 static const struct soc_enum digital_output_mux_enum = 250 SOC_ENUM_SINGLE(CS42L52_ADC_MISC_CTL, 6, 251 ARRAY_SIZE(digital_output_mux_text), 252 digital_output_mux_text); 253 254 static const struct snd_kcontrol_new digital_output_mux = 255 SOC_DAPM_ENUM("Digital Output Mux", digital_output_mux_enum); 256 257 static const char * const hp_gain_num_text[] = { 258 "0.3959", "0.4571", "0.5111", "0.6047", 259 "0.7099", "0.8399", "1.000", "1.1430" 260 }; 261 262 static const struct soc_enum hp_gain_enum = 263 SOC_ENUM_SINGLE(CS42L52_PB_CTL1, 4, 264 ARRAY_SIZE(hp_gain_num_text), hp_gain_num_text); 265 266 static const char * const beep_pitch_text[] = { 267 "C4", "C5", "D5", "E5", "F5", "G5", "A5", "B5", 268 "C6", "D6", "E6", "F6", "G6", "A6", "B6", "C7" 269 }; 270 271 static const struct soc_enum beep_pitch_enum = 272 SOC_ENUM_SINGLE(CS42L52_BEEP_FREQ, 4, 273 ARRAY_SIZE(beep_pitch_text), beep_pitch_text); 274 275 static const char * const beep_ontime_text[] = { 276 "86 ms", "430 ms", "780 ms", "1.20 s", "1.50 s", 277 "1.80 s", "2.20 s", "2.50 s", "2.80 s", "3.20 s", 278 "3.50 s", "3.80 s", "4.20 s", "4.50 s", "4.80 s", "5.20 s" 279 }; 280 281 static const struct soc_enum beep_ontime_enum = 282 SOC_ENUM_SINGLE(CS42L52_BEEP_FREQ, 0, 283 ARRAY_SIZE(beep_ontime_text), beep_ontime_text); 284 285 static const char * const beep_offtime_text[] = { 286 "1.23 s", "2.58 s", "3.90 s", "5.20 s", 287 "6.60 s", "8.05 s", "9.35 s", "10.80 s" 288 }; 289 290 static const struct soc_enum beep_offtime_enum = 291 SOC_ENUM_SINGLE(CS42L52_BEEP_VOL, 5, 292 ARRAY_SIZE(beep_offtime_text), beep_offtime_text); 293 294 static const char * const beep_config_text[] = { 295 "Off", "Single", "Multiple", "Continuous" 296 }; 297 298 static const struct soc_enum beep_config_enum = 299 SOC_ENUM_SINGLE(CS42L52_BEEP_TONE_CTL, 6, 300 ARRAY_SIZE(beep_config_text), beep_config_text); 301 302 static const char * const beep_bass_text[] = { 303 "50 Hz", "100 Hz", "200 Hz", "250 Hz" 304 }; 305 306 static const struct soc_enum beep_bass_enum = 307 SOC_ENUM_SINGLE(CS42L52_BEEP_TONE_CTL, 1, 308 ARRAY_SIZE(beep_bass_text), beep_bass_text); 309 310 static const char * const beep_treble_text[] = { 311 "5 kHz", "7 kHz", "10 kHz", " 15 kHz" 312 }; 313 314 static const struct soc_enum beep_treble_enum = 315 SOC_ENUM_SINGLE(CS42L52_BEEP_TONE_CTL, 3, 316 ARRAY_SIZE(beep_treble_text), beep_treble_text); 317 318 static const char * const ng_threshold_text[] = { 319 "-34dB", "-37dB", "-40dB", "-43dB", 320 "-46dB", "-52dB", "-58dB", "-64dB" 321 }; 322 323 static const struct soc_enum ng_threshold_enum = 324 SOC_ENUM_SINGLE(CS42L52_NOISE_GATE_CTL, 2, 325 ARRAY_SIZE(ng_threshold_text), ng_threshold_text); 326 327 static const char * const cs42l52_ng_delay_text[] = { 328 "50ms", "100ms", "150ms", "200ms"}; 329 330 static const struct soc_enum ng_delay_enum = 331 SOC_ENUM_SINGLE(CS42L52_NOISE_GATE_CTL, 0, 332 ARRAY_SIZE(cs42l52_ng_delay_text), cs42l52_ng_delay_text); 333 334 static const char * const cs42l52_ng_type_text[] = { 335 "Apply Specific", "Apply All" 336 }; 337 338 static const struct soc_enum ng_type_enum = 339 SOC_ENUM_SINGLE(CS42L52_NOISE_GATE_CTL, 6, 340 ARRAY_SIZE(cs42l52_ng_type_text), cs42l52_ng_type_text); 341 342 static const char * const left_swap_text[] = { 343 "Left", "LR 2", "Right"}; 344 345 static const char * const right_swap_text[] = { 346 "Right", "LR 2", "Left"}; 347 348 static const unsigned int swap_values[] = { 0, 1, 3 }; 349 350 static const struct soc_enum adca_swap_enum = 351 SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 2, 1, 352 ARRAY_SIZE(left_swap_text), 353 left_swap_text, 354 swap_values); 355 356 static const struct snd_kcontrol_new adca_mixer = 357 SOC_DAPM_ENUM("Route", adca_swap_enum); 358 359 static const struct soc_enum pcma_swap_enum = 360 SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 6, 1, 361 ARRAY_SIZE(left_swap_text), 362 left_swap_text, 363 swap_values); 364 365 static const struct snd_kcontrol_new pcma_mixer = 366 SOC_DAPM_ENUM("Route", pcma_swap_enum); 367 368 static const struct soc_enum adcb_swap_enum = 369 SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 0, 1, 370 ARRAY_SIZE(right_swap_text), 371 right_swap_text, 372 swap_values); 373 374 static const struct snd_kcontrol_new adcb_mixer = 375 SOC_DAPM_ENUM("Route", adcb_swap_enum); 376 377 static const struct soc_enum pcmb_swap_enum = 378 SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 4, 1, 379 ARRAY_SIZE(right_swap_text), 380 right_swap_text, 381 swap_values); 382 383 static const struct snd_kcontrol_new pcmb_mixer = 384 SOC_DAPM_ENUM("Route", pcmb_swap_enum); 385 386 387 static const struct snd_kcontrol_new passthrul_ctl = 388 SOC_DAPM_SINGLE("Switch", CS42L52_MISC_CTL, 6, 1, 0); 389 390 static const struct snd_kcontrol_new passthrur_ctl = 391 SOC_DAPM_SINGLE("Switch", CS42L52_MISC_CTL, 7, 1, 0); 392 393 static const struct snd_kcontrol_new spkl_ctl = 394 SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 0, 1, 1); 395 396 static const struct snd_kcontrol_new spkr_ctl = 397 SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 2, 1, 1); 398 399 static const struct snd_kcontrol_new hpl_ctl = 400 SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 4, 1, 1); 401 402 static const struct snd_kcontrol_new hpr_ctl = 403 SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 6, 1, 1); 404 405 static const struct snd_kcontrol_new cs42l52_snd_controls[] = { 406 407 SOC_DOUBLE_R_SX_TLV("Master Volume", CS42L52_MASTERA_VOL, 408 CS42L52_MASTERB_VOL, 0, 0x34, 0xE4, hl_tlv), 409 410 SOC_DOUBLE_R_SX_TLV("Headphone Volume", CS42L52_HPA_VOL, 411 CS42L52_HPB_VOL, 0, 0x34, 0xCC, hpd_tlv), 412 413 SOC_ENUM("Headphone Analog Gain", hp_gain_enum), 414 415 SOC_DOUBLE_R_SX_TLV("Speaker Volume", CS42L52_SPKA_VOL, 416 CS42L52_SPKB_VOL, 7, 0x1, 0xff, hl_tlv), 417 418 SOC_DOUBLE_R_SX_TLV("Bypass Volume", CS42L52_PASSTHRUA_VOL, 419 CS42L52_PASSTHRUB_VOL, 6, 0x18, 0x90, pga_tlv), 420 421 SOC_DOUBLE("Bypass Mute", CS42L52_MISC_CTL, 4, 5, 1, 0), 422 423 SOC_DOUBLE_R_TLV("MIC Gain Volume", CS42L52_MICA_CTL, 424 CS42L52_MICB_CTL, 0, 0x10, 0, mic_tlv), 425 426 SOC_ENUM("MIC Bias Level", mic_bias_level_enum), 427 428 SOC_DOUBLE_R_SX_TLV("ADC Volume", CS42L52_ADCA_VOL, 429 CS42L52_ADCB_VOL, 7, 0x80, 0xA0, ipd_tlv), 430 SOC_DOUBLE_R_SX_TLV("ADC Mixer Volume", 431 CS42L52_ADCA_MIXER_VOL, CS42L52_ADCB_MIXER_VOL, 432 6, 0x7f, 0x19, ipd_tlv), 433 434 SOC_DOUBLE("ADC Switch", CS42L52_ADC_MISC_CTL, 0, 1, 1, 0), 435 436 SOC_DOUBLE_R("ADC Mixer Switch", CS42L52_ADCA_MIXER_VOL, 437 CS42L52_ADCB_MIXER_VOL, 7, 1, 1), 438 439 SOC_DOUBLE_R_SX_TLV("PGA Volume", CS42L52_PGAA_CTL, 440 CS42L52_PGAB_CTL, 0, 0x28, 0x30, pga_tlv), 441 442 SOC_DOUBLE_R_SX_TLV("PCM Mixer Volume", 443 CS42L52_PCMA_MIXER_VOL, CS42L52_PCMB_MIXER_VOL, 444 6, 0x7f, 0x19, hl_tlv), 445 SOC_DOUBLE_R("PCM Mixer Switch", 446 CS42L52_PCMA_MIXER_VOL, CS42L52_PCMB_MIXER_VOL, 7, 1, 1), 447 448 SOC_ENUM("Beep Config", beep_config_enum), 449 SOC_ENUM("Beep Pitch", beep_pitch_enum), 450 SOC_ENUM("Beep on Time", beep_ontime_enum), 451 SOC_ENUM("Beep off Time", beep_offtime_enum), 452 SOC_SINGLE_TLV("Beep Volume", CS42L52_BEEP_VOL, 0, 0x1f, 0x07, hl_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_soc_dapm_widget cs42l52_dapm_widgets[] = { 529 530 SND_SOC_DAPM_INPUT("AIN1L"), 531 SND_SOC_DAPM_INPUT("AIN1R"), 532 SND_SOC_DAPM_INPUT("AIN2L"), 533 SND_SOC_DAPM_INPUT("AIN2R"), 534 SND_SOC_DAPM_INPUT("AIN3L"), 535 SND_SOC_DAPM_INPUT("AIN3R"), 536 SND_SOC_DAPM_INPUT("AIN4L"), 537 SND_SOC_DAPM_INPUT("AIN4R"), 538 SND_SOC_DAPM_INPUT("MICA"), 539 SND_SOC_DAPM_INPUT("MICB"), 540 SND_SOC_DAPM_SIGGEN("Beep"), 541 542 SND_SOC_DAPM_AIF_OUT("AIFOUTL", NULL, 0, 543 SND_SOC_NOPM, 0, 0), 544 SND_SOC_DAPM_AIF_OUT("AIFOUTR", NULL, 0, 545 SND_SOC_NOPM, 0, 0), 546 547 SND_SOC_DAPM_MUX("MICA Mux", SND_SOC_NOPM, 0, 0, &mica_mux), 548 SND_SOC_DAPM_MUX("MICB Mux", SND_SOC_NOPM, 0, 0, &micb_mux), 549 550 SND_SOC_DAPM_ADC("ADC Left", NULL, CS42L52_PWRCTL1, 1, 1), 551 SND_SOC_DAPM_ADC("ADC Right", NULL, CS42L52_PWRCTL1, 2, 1), 552 SND_SOC_DAPM_PGA("PGA Left", CS42L52_PWRCTL1, 3, 1, NULL, 0), 553 SND_SOC_DAPM_PGA("PGA Right", CS42L52_PWRCTL1, 4, 1, NULL, 0), 554 555 SND_SOC_DAPM_MUX("ADC Left Mux", SND_SOC_NOPM, 0, 0, &adca_mux), 556 SND_SOC_DAPM_MUX("ADC Right Mux", SND_SOC_NOPM, 0, 0, &adcb_mux), 557 558 SND_SOC_DAPM_MUX("ADC Left Swap", SND_SOC_NOPM, 559 0, 0, &adca_mixer), 560 SND_SOC_DAPM_MUX("ADC Right Swap", SND_SOC_NOPM, 561 0, 0, &adcb_mixer), 562 563 SND_SOC_DAPM_MUX("Output Mux", SND_SOC_NOPM, 564 0, 0, &digital_output_mux), 565 566 SND_SOC_DAPM_PGA("PGA MICA", CS42L52_PWRCTL2, 1, 1, NULL, 0), 567 SND_SOC_DAPM_PGA("PGA MICB", CS42L52_PWRCTL2, 2, 1, NULL, 0), 568 569 SND_SOC_DAPM_SUPPLY("Mic Bias", CS42L52_PWRCTL2, 0, 1, NULL, 0), 570 SND_SOC_DAPM_SUPPLY("Charge Pump", CS42L52_PWRCTL1, 7, 1, NULL, 0), 571 572 SND_SOC_DAPM_AIF_IN("AIFINL", NULL, 0, 573 SND_SOC_NOPM, 0, 0), 574 SND_SOC_DAPM_AIF_IN("AIFINR", NULL, 0, 575 SND_SOC_NOPM, 0, 0), 576 577 SND_SOC_DAPM_DAC("DAC Left", NULL, SND_SOC_NOPM, 0, 0), 578 SND_SOC_DAPM_DAC("DAC Right", NULL, SND_SOC_NOPM, 0, 0), 579 580 SND_SOC_DAPM_SWITCH("Bypass Left", CS42L52_MISC_CTL, 581 6, 0, &passthrul_ctl), 582 SND_SOC_DAPM_SWITCH("Bypass Right", CS42L52_MISC_CTL, 583 7, 0, &passthrur_ctl), 584 585 SND_SOC_DAPM_MUX("PCM Left Swap", SND_SOC_NOPM, 586 0, 0, &pcma_mixer), 587 SND_SOC_DAPM_MUX("PCM Right Swap", SND_SOC_NOPM, 588 0, 0, &pcmb_mixer), 589 590 SND_SOC_DAPM_SWITCH("HP Left Amp", SND_SOC_NOPM, 0, 0, &hpl_ctl), 591 SND_SOC_DAPM_SWITCH("HP Right Amp", SND_SOC_NOPM, 0, 0, &hpr_ctl), 592 593 SND_SOC_DAPM_SWITCH("SPK Left Amp", SND_SOC_NOPM, 0, 0, &spkl_ctl), 594 SND_SOC_DAPM_SWITCH("SPK Right Amp", SND_SOC_NOPM, 0, 0, &spkr_ctl), 595 596 SND_SOC_DAPM_OUTPUT("HPOUTA"), 597 SND_SOC_DAPM_OUTPUT("HPOUTB"), 598 SND_SOC_DAPM_OUTPUT("SPKOUTA"), 599 SND_SOC_DAPM_OUTPUT("SPKOUTB"), 600 601 }; 602 603 static const struct snd_soc_dapm_route cs42l52_audio_map[] = { 604 605 {"Capture", NULL, "AIFOUTL"}, 606 {"Capture", NULL, "AIFOUTL"}, 607 608 {"AIFOUTL", NULL, "Output Mux"}, 609 {"AIFOUTR", NULL, "Output Mux"}, 610 611 {"Output Mux", "ADC", "ADC Left"}, 612 {"Output Mux", "ADC", "ADC Right"}, 613 614 {"ADC Left", NULL, "Charge Pump"}, 615 {"ADC Right", NULL, "Charge Pump"}, 616 617 {"Charge Pump", NULL, "ADC Left Mux"}, 618 {"Charge Pump", NULL, "ADC Right Mux"}, 619 620 {"ADC Left Mux", "Input1A", "AIN1L"}, 621 {"ADC Right Mux", "Input1B", "AIN1R"}, 622 {"ADC Left Mux", "Input2A", "AIN2L"}, 623 {"ADC Right Mux", "Input2B", "AIN2R"}, 624 {"ADC Left Mux", "Input3A", "AIN3L"}, 625 {"ADC Right Mux", "Input3B", "AIN3R"}, 626 {"ADC Left Mux", "Input4A", "AIN4L"}, 627 {"ADC Right Mux", "Input4B", "AIN4R"}, 628 {"ADC Left Mux", "PGA Input Left", "PGA Left"}, 629 {"ADC Right Mux", "PGA Input Right" , "PGA Right"}, 630 631 {"PGA Left", "Switch", "AIN1L"}, 632 {"PGA Right", "Switch", "AIN1R"}, 633 {"PGA Left", "Switch", "AIN2L"}, 634 {"PGA Right", "Switch", "AIN2R"}, 635 {"PGA Left", "Switch", "AIN3L"}, 636 {"PGA Right", "Switch", "AIN3R"}, 637 {"PGA Left", "Switch", "AIN4L"}, 638 {"PGA Right", "Switch", "AIN4R"}, 639 640 {"PGA Left", "Switch", "PGA MICA"}, 641 {"PGA MICA", NULL, "MICA"}, 642 643 {"PGA Right", "Switch", "PGA MICB"}, 644 {"PGA MICB", NULL, "MICB"}, 645 646 {"HPOUTA", NULL, "HP Left Amp"}, 647 {"HPOUTB", NULL, "HP Right Amp"}, 648 {"HP Left Amp", NULL, "Bypass Left"}, 649 {"HP Right Amp", NULL, "Bypass Right"}, 650 {"Bypass Left", "Switch", "PGA Left"}, 651 {"Bypass Right", "Switch", "PGA Right"}, 652 {"HP Left Amp", "Switch", "DAC Left"}, 653 {"HP Right Amp", "Switch", "DAC Right"}, 654 655 {"SPKOUTA", NULL, "SPK Left Amp"}, 656 {"SPKOUTB", NULL, "SPK Right Amp"}, 657 658 {"SPK Left Amp", NULL, "Beep"}, 659 {"SPK Right Amp", NULL, "Beep"}, 660 {"SPK Left Amp", "Switch", "Playback"}, 661 {"SPK Right Amp", "Switch", "Playback"}, 662 663 {"DAC Left", NULL, "Beep"}, 664 {"DAC Right", NULL, "Beep"}, 665 {"DAC Left", NULL, "Playback"}, 666 {"DAC Right", NULL, "Playback"}, 667 668 {"Output Mux", "DSP", "Playback"}, 669 {"Output Mux", "DSP", "Playback"}, 670 671 {"AIFINL", NULL, "Playback"}, 672 {"AIFINR", NULL, "Playback"}, 673 674 }; 675 676 struct cs42l52_clk_para { 677 u32 mclk; 678 u32 rate; 679 u8 speed; 680 u8 group; 681 u8 videoclk; 682 u8 ratio; 683 u8 mclkdiv2; 684 }; 685 686 static const struct cs42l52_clk_para clk_map_table[] = { 687 /*8k*/ 688 {12288000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 689 {18432000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 690 {12000000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 0}, 691 {24000000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 1}, 692 {27000000, 8000, CLK_QS_MODE, CLK_32K, CLK_27M_MCLK, CLK_R_125, 0}, 693 694 /*11.025k*/ 695 {11289600, 11025, CLK_QS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 696 {16934400, 11025, CLK_QS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 697 698 /*16k*/ 699 {12288000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 700 {18432000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 701 {12000000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 0}, 702 {24000000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 1}, 703 {27000000, 16000, CLK_HS_MODE, CLK_32K, CLK_27M_MCLK, CLK_R_125, 1}, 704 705 /*22.05k*/ 706 {11289600, 22050, CLK_HS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 707 {16934400, 22050, CLK_HS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 708 709 /* 32k */ 710 {12288000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 711 {18432000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 712 {12000000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 0}, 713 {24000000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 1}, 714 {27000000, 32000, CLK_SS_MODE, CLK_32K, CLK_27M_MCLK, CLK_R_125, 0}, 715 716 /* 44.1k */ 717 {11289600, 44100, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 718 {16934400, 44100, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 719 720 /* 48k */ 721 {12288000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 722 {18432000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 723 {12000000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 0}, 724 {24000000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 1}, 725 {27000000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_27M_MCLK, CLK_R_125, 1}, 726 727 /* 88.2k */ 728 {11289600, 88200, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 729 {16934400, 88200, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 730 731 /* 96k */ 732 {12288000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 733 {18432000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 734 {12000000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 0}, 735 {24000000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 1}, 736 }; 737 738 static int cs42l52_get_clk(int mclk, int rate) 739 { 740 int i, ret = -EINVAL; 741 u_int mclk1, mclk2 = 0; 742 743 for (i = 0; i < ARRAY_SIZE(clk_map_table); i++) { 744 if (clk_map_table[i].rate == rate) { 745 mclk1 = clk_map_table[i].mclk; 746 if (abs(mclk - mclk1) < abs(mclk - mclk2)) { 747 mclk2 = mclk1; 748 ret = i; 749 } 750 } 751 } 752 return ret; 753 } 754 755 static int cs42l52_set_sysclk(struct snd_soc_dai *codec_dai, 756 int clk_id, unsigned int freq, int dir) 757 { 758 struct snd_soc_codec *codec = codec_dai->codec; 759 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 760 761 if ((freq >= CS42L52_MIN_CLK) && (freq <= CS42L52_MAX_CLK)) { 762 cs42l52->sysclk = freq; 763 } else { 764 dev_err(codec->dev, "Invalid freq parameter\n"); 765 return -EINVAL; 766 } 767 return 0; 768 } 769 770 static int cs42l52_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) 771 { 772 struct snd_soc_codec *codec = codec_dai->codec; 773 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 774 u8 iface = 0; 775 776 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 777 case SND_SOC_DAIFMT_CBM_CFM: 778 iface = CS42L52_IFACE_CTL1_MASTER; 779 break; 780 case SND_SOC_DAIFMT_CBS_CFS: 781 iface = CS42L52_IFACE_CTL1_SLAVE; 782 break; 783 default: 784 return -EINVAL; 785 } 786 787 /* interface format */ 788 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 789 case SND_SOC_DAIFMT_I2S: 790 iface |= CS42L52_IFACE_CTL1_ADC_FMT_I2S | 791 CS42L52_IFACE_CTL1_DAC_FMT_I2S; 792 break; 793 case SND_SOC_DAIFMT_RIGHT_J: 794 iface |= CS42L52_IFACE_CTL1_DAC_FMT_RIGHT_J; 795 break; 796 case SND_SOC_DAIFMT_LEFT_J: 797 iface |= CS42L52_IFACE_CTL1_ADC_FMT_LEFT_J | 798 CS42L52_IFACE_CTL1_DAC_FMT_LEFT_J; 799 break; 800 case SND_SOC_DAIFMT_DSP_A: 801 iface |= CS42L52_IFACE_CTL1_DSP_MODE_EN; 802 break; 803 case SND_SOC_DAIFMT_DSP_B: 804 break; 805 default: 806 return -EINVAL; 807 } 808 809 /* clock inversion */ 810 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 811 case SND_SOC_DAIFMT_NB_NF: 812 break; 813 case SND_SOC_DAIFMT_IB_IF: 814 iface |= CS42L52_IFACE_CTL1_INV_SCLK; 815 break; 816 case SND_SOC_DAIFMT_IB_NF: 817 iface |= CS42L52_IFACE_CTL1_INV_SCLK; 818 break; 819 case SND_SOC_DAIFMT_NB_IF: 820 break; 821 default: 822 return -EINVAL; 823 } 824 cs42l52->config.format = iface; 825 snd_soc_write(codec, CS42L52_IFACE_CTL1, cs42l52->config.format); 826 827 return 0; 828 } 829 830 static int cs42l52_digital_mute(struct snd_soc_dai *dai, int mute) 831 { 832 struct snd_soc_codec *codec = dai->codec; 833 834 if (mute) 835 snd_soc_update_bits(codec, CS42L52_PB_CTL1, 836 CS42L52_PB_CTL1_MUTE_MASK, 837 CS42L52_PB_CTL1_MUTE); 838 else 839 snd_soc_update_bits(codec, CS42L52_PB_CTL1, 840 CS42L52_PB_CTL1_MUTE_MASK, 841 CS42L52_PB_CTL1_UNMUTE); 842 843 return 0; 844 } 845 846 static int cs42l52_pcm_hw_params(struct snd_pcm_substream *substream, 847 struct snd_pcm_hw_params *params, 848 struct snd_soc_dai *dai) 849 { 850 struct snd_soc_codec *codec = dai->codec; 851 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 852 u32 clk = 0; 853 int index; 854 855 index = cs42l52_get_clk(cs42l52->sysclk, params_rate(params)); 856 if (index >= 0) { 857 cs42l52->sysclk = clk_map_table[index].mclk; 858 859 clk |= (clk_map_table[index].speed << CLK_SPEED_SHIFT) | 860 (clk_map_table[index].group << CLK_32K_SR_SHIFT) | 861 (clk_map_table[index].videoclk << CLK_27M_MCLK_SHIFT) | 862 (clk_map_table[index].ratio << CLK_RATIO_SHIFT) | 863 clk_map_table[index].mclkdiv2; 864 865 snd_soc_write(codec, CS42L52_CLK_CTL, clk); 866 } else { 867 dev_err(codec->dev, "can't get correct mclk\n"); 868 return -EINVAL; 869 } 870 871 return 0; 872 } 873 874 static int cs42l52_set_bias_level(struct snd_soc_codec *codec, 875 enum snd_soc_bias_level level) 876 { 877 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 878 879 switch (level) { 880 case SND_SOC_BIAS_ON: 881 break; 882 case SND_SOC_BIAS_PREPARE: 883 snd_soc_update_bits(codec, CS42L52_PWRCTL1, 884 CS42L52_PWRCTL1_PDN_CODEC, 0); 885 break; 886 case SND_SOC_BIAS_STANDBY: 887 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { 888 regcache_cache_only(cs42l52->regmap, false); 889 regcache_sync(cs42l52->regmap); 890 } 891 snd_soc_write(codec, CS42L52_PWRCTL1, CS42L52_PWRCTL1_PDN_ALL); 892 break; 893 case SND_SOC_BIAS_OFF: 894 snd_soc_write(codec, CS42L52_PWRCTL1, CS42L52_PWRCTL1_PDN_ALL); 895 regcache_cache_only(cs42l52->regmap, true); 896 break; 897 } 898 codec->dapm.bias_level = level; 899 900 return 0; 901 } 902 903 #define CS42L52_RATES (SNDRV_PCM_RATE_8000_96000) 904 905 #define CS42L52_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE | \ 906 SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_U18_3LE | \ 907 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_U20_3LE | \ 908 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_U24_LE) 909 910 static struct snd_soc_dai_ops cs42l52_ops = { 911 .hw_params = cs42l52_pcm_hw_params, 912 .digital_mute = cs42l52_digital_mute, 913 .set_fmt = cs42l52_set_fmt, 914 .set_sysclk = cs42l52_set_sysclk, 915 }; 916 917 static struct snd_soc_dai_driver cs42l52_dai = { 918 .name = "cs42l52", 919 .playback = { 920 .stream_name = "Playback", 921 .channels_min = 1, 922 .channels_max = 2, 923 .rates = CS42L52_RATES, 924 .formats = CS42L52_FORMATS, 925 }, 926 .capture = { 927 .stream_name = "Capture", 928 .channels_min = 1, 929 .channels_max = 2, 930 .rates = CS42L52_RATES, 931 .formats = CS42L52_FORMATS, 932 }, 933 .ops = &cs42l52_ops, 934 }; 935 936 static int cs42l52_suspend(struct snd_soc_codec *codec) 937 { 938 cs42l52_set_bias_level(codec, SND_SOC_BIAS_OFF); 939 940 return 0; 941 } 942 943 static int cs42l52_resume(struct snd_soc_codec *codec) 944 { 945 cs42l52_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 946 947 return 0; 948 } 949 950 #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE) 951 static int beep_rates[] = { 952 261, 522, 585, 667, 706, 774, 889, 1000, 953 1043, 1200, 1333, 1412, 1600, 1714, 2000, 2182 954 }; 955 956 static void cs42l52_beep_work(struct work_struct *work) 957 { 958 struct cs42l52_private *cs42l52 = 959 container_of(work, struct cs42l52_private, beep_work); 960 struct snd_soc_codec *codec = cs42l52->codec; 961 struct snd_soc_dapm_context *dapm = &codec->dapm; 962 int i; 963 int val = 0; 964 int best = 0; 965 966 if (cs42l52->beep_rate) { 967 for (i = 0; i < ARRAY_SIZE(beep_rates); i++) { 968 if (abs(cs42l52->beep_rate - beep_rates[i]) < 969 abs(cs42l52->beep_rate - beep_rates[best])) 970 best = i; 971 } 972 973 dev_dbg(codec->dev, "Set beep rate %dHz for requested %dHz\n", 974 beep_rates[best], cs42l52->beep_rate); 975 976 val = (best << CS42L52_BEEP_RATE_SHIFT); 977 978 snd_soc_dapm_enable_pin(dapm, "Beep"); 979 } else { 980 dev_dbg(codec->dev, "Disabling beep\n"); 981 snd_soc_dapm_disable_pin(dapm, "Beep"); 982 } 983 984 snd_soc_update_bits(codec, CS42L52_BEEP_FREQ, 985 CS42L52_BEEP_RATE_MASK, val); 986 987 snd_soc_dapm_sync(dapm); 988 } 989 990 /* For usability define a way of injecting beep events for the device - 991 * many systems will not have a keyboard. 992 */ 993 static int cs42l52_beep_event(struct input_dev *dev, unsigned int type, 994 unsigned int code, int hz) 995 { 996 struct snd_soc_codec *codec = input_get_drvdata(dev); 997 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 998 999 dev_dbg(codec->dev, "Beep event %x %x\n", code, hz); 1000 1001 switch (code) { 1002 case SND_BELL: 1003 if (hz) 1004 hz = 261; 1005 case SND_TONE: 1006 break; 1007 default: 1008 return -1; 1009 } 1010 1011 /* Kick the beep from a workqueue */ 1012 cs42l52->beep_rate = hz; 1013 schedule_work(&cs42l52->beep_work); 1014 return 0; 1015 } 1016 1017 static ssize_t cs42l52_beep_set(struct device *dev, 1018 struct device_attribute *attr, 1019 const char *buf, size_t count) 1020 { 1021 struct cs42l52_private *cs42l52 = dev_get_drvdata(dev); 1022 long int time; 1023 int ret; 1024 1025 ret = kstrtol(buf, 10, &time); 1026 if (ret != 0) 1027 return ret; 1028 1029 input_event(cs42l52->beep, EV_SND, SND_TONE, time); 1030 1031 return count; 1032 } 1033 1034 static DEVICE_ATTR(beep, 0200, NULL, cs42l52_beep_set); 1035 1036 static void cs42l52_init_beep(struct snd_soc_codec *codec) 1037 { 1038 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 1039 int ret; 1040 1041 cs42l52->beep = input_allocate_device(); 1042 if (!cs42l52->beep) { 1043 dev_err(codec->dev, "Failed to allocate beep device\n"); 1044 return; 1045 } 1046 1047 INIT_WORK(&cs42l52->beep_work, cs42l52_beep_work); 1048 cs42l52->beep_rate = 0; 1049 1050 cs42l52->beep->name = "CS42L52 Beep Generator"; 1051 cs42l52->beep->phys = dev_name(codec->dev); 1052 cs42l52->beep->id.bustype = BUS_I2C; 1053 1054 cs42l52->beep->evbit[0] = BIT_MASK(EV_SND); 1055 cs42l52->beep->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE); 1056 cs42l52->beep->event = cs42l52_beep_event; 1057 cs42l52->beep->dev.parent = codec->dev; 1058 input_set_drvdata(cs42l52->beep, codec); 1059 1060 ret = input_register_device(cs42l52->beep); 1061 if (ret != 0) { 1062 input_free_device(cs42l52->beep); 1063 cs42l52->beep = NULL; 1064 dev_err(codec->dev, "Failed to register beep device\n"); 1065 } 1066 1067 ret = device_create_file(codec->dev, &dev_attr_beep); 1068 if (ret != 0) { 1069 dev_err(codec->dev, "Failed to create keyclick file: %d\n", 1070 ret); 1071 } 1072 } 1073 1074 static void cs42l52_free_beep(struct snd_soc_codec *codec) 1075 { 1076 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 1077 1078 device_remove_file(codec->dev, &dev_attr_beep); 1079 input_unregister_device(cs42l52->beep); 1080 cancel_work_sync(&cs42l52->beep_work); 1081 cs42l52->beep = NULL; 1082 1083 snd_soc_update_bits(codec, CS42L52_BEEP_TONE_CTL, 1084 CS42L52_BEEP_EN_MASK, 0); 1085 } 1086 #else 1087 static void cs42l52_init_beep(struct snd_soc_codec *codec) 1088 { 1089 } 1090 1091 static void cs42l52_free_beep(struct snd_soc_codec *codec) 1092 { 1093 } 1094 #endif 1095 1096 static int cs42l52_probe(struct snd_soc_codec *codec) 1097 { 1098 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 1099 int ret; 1100 1101 codec->control_data = cs42l52->regmap; 1102 ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_REGMAP); 1103 if (ret < 0) { 1104 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); 1105 return ret; 1106 } 1107 regcache_cache_only(cs42l52->regmap, true); 1108 1109 cs42l52_init_beep(codec); 1110 1111 cs42l52_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 1112 1113 cs42l52->sysclk = CS42L52_DEFAULT_CLK; 1114 cs42l52->config.format = CS42L52_DEFAULT_FORMAT; 1115 1116 /* Set Platform MICx CFG */ 1117 snd_soc_update_bits(codec, CS42L52_MICA_CTL, 1118 CS42L52_MIC_CTL_TYPE_MASK, 1119 cs42l52->pdata.mica_cfg << 1120 CS42L52_MIC_CTL_TYPE_SHIFT); 1121 1122 snd_soc_update_bits(codec, CS42L52_MICB_CTL, 1123 CS42L52_MIC_CTL_TYPE_MASK, 1124 cs42l52->pdata.micb_cfg << 1125 CS42L52_MIC_CTL_TYPE_SHIFT); 1126 1127 /* if Single Ended, Get Mic_Select */ 1128 if (cs42l52->pdata.mica_cfg) 1129 snd_soc_update_bits(codec, CS42L52_MICA_CTL, 1130 CS42L52_MIC_CTL_MIC_SEL_MASK, 1131 cs42l52->pdata.mica_sel << 1132 CS42L52_MIC_CTL_MIC_SEL_SHIFT); 1133 if (cs42l52->pdata.micb_cfg) 1134 snd_soc_update_bits(codec, CS42L52_MICB_CTL, 1135 CS42L52_MIC_CTL_MIC_SEL_MASK, 1136 cs42l52->pdata.micb_sel << 1137 CS42L52_MIC_CTL_MIC_SEL_SHIFT); 1138 1139 /* Set Platform Charge Pump Freq */ 1140 snd_soc_update_bits(codec, CS42L52_CHARGE_PUMP, 1141 CS42L52_CHARGE_PUMP_MASK, 1142 cs42l52->pdata.chgfreq << 1143 CS42L52_CHARGE_PUMP_SHIFT); 1144 1145 /* Set Platform Bias Level */ 1146 snd_soc_update_bits(codec, CS42L52_IFACE_CTL2, 1147 CS42L52_IFACE_CTL2_BIAS_LVL, 1148 cs42l52->pdata.micbias_lvl); 1149 1150 return ret; 1151 } 1152 1153 static int cs42l52_remove(struct snd_soc_codec *codec) 1154 { 1155 cs42l52_free_beep(codec); 1156 cs42l52_set_bias_level(codec, SND_SOC_BIAS_OFF); 1157 1158 return 0; 1159 } 1160 1161 static struct snd_soc_codec_driver soc_codec_dev_cs42l52 = { 1162 .probe = cs42l52_probe, 1163 .remove = cs42l52_remove, 1164 .suspend = cs42l52_suspend, 1165 .resume = cs42l52_resume, 1166 .set_bias_level = cs42l52_set_bias_level, 1167 1168 .dapm_widgets = cs42l52_dapm_widgets, 1169 .num_dapm_widgets = ARRAY_SIZE(cs42l52_dapm_widgets), 1170 .dapm_routes = cs42l52_audio_map, 1171 .num_dapm_routes = ARRAY_SIZE(cs42l52_audio_map), 1172 1173 .controls = cs42l52_snd_controls, 1174 .num_controls = ARRAY_SIZE(cs42l52_snd_controls), 1175 }; 1176 1177 /* Current and threshold powerup sequence Pg37 */ 1178 static const struct reg_default cs42l52_threshold_patch[] = { 1179 1180 { 0x00, 0x99 }, 1181 { 0x3E, 0xBA }, 1182 { 0x47, 0x80 }, 1183 { 0x32, 0xBB }, 1184 { 0x32, 0x3B }, 1185 { 0x00, 0x00 }, 1186 1187 }; 1188 1189 static struct regmap_config cs42l52_regmap = { 1190 .reg_bits = 8, 1191 .val_bits = 8, 1192 1193 .max_register = CS42L52_MAX_REGISTER, 1194 .reg_defaults = cs42l52_reg_defaults, 1195 .num_reg_defaults = ARRAY_SIZE(cs42l52_reg_defaults), 1196 .readable_reg = cs42l52_readable_register, 1197 .volatile_reg = cs42l52_volatile_register, 1198 .cache_type = REGCACHE_RBTREE, 1199 }; 1200 1201 static int cs42l52_i2c_probe(struct i2c_client *i2c_client, 1202 const struct i2c_device_id *id) 1203 { 1204 struct cs42l52_private *cs42l52; 1205 int ret; 1206 unsigned int devid = 0; 1207 unsigned int reg; 1208 1209 cs42l52 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs42l52_private), 1210 GFP_KERNEL); 1211 if (cs42l52 == NULL) 1212 return -ENOMEM; 1213 cs42l52->dev = &i2c_client->dev; 1214 1215 cs42l52->regmap = devm_regmap_init_i2c(i2c_client, &cs42l52_regmap); 1216 if (IS_ERR(cs42l52->regmap)) { 1217 ret = PTR_ERR(cs42l52->regmap); 1218 dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret); 1219 return ret; 1220 } 1221 1222 i2c_set_clientdata(i2c_client, cs42l52); 1223 1224 if (dev_get_platdata(&i2c_client->dev)) 1225 memcpy(&cs42l52->pdata, dev_get_platdata(&i2c_client->dev), 1226 sizeof(cs42l52->pdata)); 1227 1228 ret = regmap_register_patch(cs42l52->regmap, cs42l52_threshold_patch, 1229 ARRAY_SIZE(cs42l52_threshold_patch)); 1230 if (ret != 0) 1231 dev_warn(cs42l52->dev, "Failed to apply regmap patch: %d\n", 1232 ret); 1233 1234 ret = regmap_read(cs42l52->regmap, CS42L52_CHIP, ®); 1235 devid = reg & CS42L52_CHIP_ID_MASK; 1236 if (devid != CS42L52_CHIP_ID) { 1237 ret = -ENODEV; 1238 dev_err(&i2c_client->dev, 1239 "CS42L52 Device ID (%X). Expected %X\n", 1240 devid, CS42L52_CHIP_ID); 1241 return ret; 1242 } 1243 1244 regcache_cache_only(cs42l52->regmap, true); 1245 1246 ret = snd_soc_register_codec(&i2c_client->dev, 1247 &soc_codec_dev_cs42l52, &cs42l52_dai, 1); 1248 if (ret < 0) 1249 return ret; 1250 return 0; 1251 } 1252 1253 static int cs42l52_i2c_remove(struct i2c_client *client) 1254 { 1255 snd_soc_unregister_codec(&client->dev); 1256 return 0; 1257 } 1258 1259 static const struct i2c_device_id cs42l52_id[] = { 1260 { "cs42l52", 0 }, 1261 { } 1262 }; 1263 MODULE_DEVICE_TABLE(i2c, cs42l52_id); 1264 1265 static struct i2c_driver cs42l52_i2c_driver = { 1266 .driver = { 1267 .name = "cs42l52", 1268 .owner = THIS_MODULE, 1269 }, 1270 .id_table = cs42l52_id, 1271 .probe = cs42l52_i2c_probe, 1272 .remove = cs42l52_i2c_remove, 1273 }; 1274 1275 module_i2c_driver(cs42l52_i2c_driver); 1276 1277 MODULE_DESCRIPTION("ASoC CS42L52 driver"); 1278 MODULE_AUTHOR("Georgi Vlaev, Nucleus Systems Ltd, <joe@nucleusys.com>"); 1279 MODULE_AUTHOR("Brian Austin, Cirrus Logic Inc, <brian.austin@cirrus.com>"); 1280 MODULE_LICENSE("GPL"); 1281