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 = 0; 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 if (ret > ARRAY_SIZE(clk_map_table)) 753 return -EINVAL; 754 return ret; 755 } 756 757 static int cs42l52_set_sysclk(struct snd_soc_dai *codec_dai, 758 int clk_id, unsigned int freq, int dir) 759 { 760 struct snd_soc_codec *codec = codec_dai->codec; 761 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 762 763 if ((freq >= CS42L52_MIN_CLK) && (freq <= CS42L52_MAX_CLK)) { 764 cs42l52->sysclk = freq; 765 } else { 766 dev_err(codec->dev, "Invalid freq parameter\n"); 767 return -EINVAL; 768 } 769 return 0; 770 } 771 772 static int cs42l52_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) 773 { 774 struct snd_soc_codec *codec = codec_dai->codec; 775 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 776 u8 iface = 0; 777 778 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 779 case SND_SOC_DAIFMT_CBM_CFM: 780 iface = CS42L52_IFACE_CTL1_MASTER; 781 break; 782 case SND_SOC_DAIFMT_CBS_CFS: 783 iface = CS42L52_IFACE_CTL1_SLAVE; 784 break; 785 default: 786 return -EINVAL; 787 } 788 789 /* interface format */ 790 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 791 case SND_SOC_DAIFMT_I2S: 792 iface |= CS42L52_IFACE_CTL1_ADC_FMT_I2S | 793 CS42L52_IFACE_CTL1_DAC_FMT_I2S; 794 break; 795 case SND_SOC_DAIFMT_RIGHT_J: 796 iface |= CS42L52_IFACE_CTL1_DAC_FMT_RIGHT_J; 797 break; 798 case SND_SOC_DAIFMT_LEFT_J: 799 iface |= CS42L52_IFACE_CTL1_ADC_FMT_LEFT_J | 800 CS42L52_IFACE_CTL1_DAC_FMT_LEFT_J; 801 break; 802 case SND_SOC_DAIFMT_DSP_A: 803 iface |= CS42L52_IFACE_CTL1_DSP_MODE_EN; 804 break; 805 case SND_SOC_DAIFMT_DSP_B: 806 break; 807 default: 808 return -EINVAL; 809 } 810 811 /* clock inversion */ 812 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 813 case SND_SOC_DAIFMT_NB_NF: 814 break; 815 case SND_SOC_DAIFMT_IB_IF: 816 iface |= CS42L52_IFACE_CTL1_INV_SCLK; 817 break; 818 case SND_SOC_DAIFMT_IB_NF: 819 iface |= CS42L52_IFACE_CTL1_INV_SCLK; 820 break; 821 case SND_SOC_DAIFMT_NB_IF: 822 break; 823 default: 824 return -EINVAL; 825 } 826 cs42l52->config.format = iface; 827 snd_soc_write(codec, CS42L52_IFACE_CTL1, cs42l52->config.format); 828 829 return 0; 830 } 831 832 static int cs42l52_digital_mute(struct snd_soc_dai *dai, int mute) 833 { 834 struct snd_soc_codec *codec = dai->codec; 835 836 if (mute) 837 snd_soc_update_bits(codec, CS42L52_PB_CTL1, 838 CS42L52_PB_CTL1_MUTE_MASK, 839 CS42L52_PB_CTL1_MUTE); 840 else 841 snd_soc_update_bits(codec, CS42L52_PB_CTL1, 842 CS42L52_PB_CTL1_MUTE_MASK, 843 CS42L52_PB_CTL1_UNMUTE); 844 845 return 0; 846 } 847 848 static int cs42l52_pcm_hw_params(struct snd_pcm_substream *substream, 849 struct snd_pcm_hw_params *params, 850 struct snd_soc_dai *dai) 851 { 852 struct snd_soc_codec *codec = dai->codec; 853 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 854 u32 clk = 0; 855 int index; 856 857 index = cs42l52_get_clk(cs42l52->sysclk, params_rate(params)); 858 if (index >= 0) { 859 cs42l52->sysclk = clk_map_table[index].mclk; 860 861 clk |= (clk_map_table[index].speed << CLK_SPEED_SHIFT) | 862 (clk_map_table[index].group << CLK_32K_SR_SHIFT) | 863 (clk_map_table[index].videoclk << CLK_27M_MCLK_SHIFT) | 864 (clk_map_table[index].ratio << CLK_RATIO_SHIFT) | 865 clk_map_table[index].mclkdiv2; 866 867 snd_soc_write(codec, CS42L52_CLK_CTL, clk); 868 } else { 869 dev_err(codec->dev, "can't get correct mclk\n"); 870 return -EINVAL; 871 } 872 873 return 0; 874 } 875 876 static int cs42l52_set_bias_level(struct snd_soc_codec *codec, 877 enum snd_soc_bias_level level) 878 { 879 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 880 881 switch (level) { 882 case SND_SOC_BIAS_ON: 883 break; 884 case SND_SOC_BIAS_PREPARE: 885 snd_soc_update_bits(codec, CS42L52_PWRCTL1, 886 CS42L52_PWRCTL1_PDN_CODEC, 0); 887 break; 888 case SND_SOC_BIAS_STANDBY: 889 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { 890 regcache_cache_only(cs42l52->regmap, false); 891 regcache_sync(cs42l52->regmap); 892 } 893 snd_soc_write(codec, CS42L52_PWRCTL1, CS42L52_PWRCTL1_PDN_ALL); 894 break; 895 case SND_SOC_BIAS_OFF: 896 snd_soc_write(codec, CS42L52_PWRCTL1, CS42L52_PWRCTL1_PDN_ALL); 897 regcache_cache_only(cs42l52->regmap, true); 898 break; 899 } 900 codec->dapm.bias_level = level; 901 902 return 0; 903 } 904 905 #define CS42L52_RATES (SNDRV_PCM_RATE_8000_96000) 906 907 #define CS42L52_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE | \ 908 SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_U18_3LE | \ 909 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_U20_3LE | \ 910 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_U24_LE) 911 912 static struct snd_soc_dai_ops cs42l52_ops = { 913 .hw_params = cs42l52_pcm_hw_params, 914 .digital_mute = cs42l52_digital_mute, 915 .set_fmt = cs42l52_set_fmt, 916 .set_sysclk = cs42l52_set_sysclk, 917 }; 918 919 static struct snd_soc_dai_driver cs42l52_dai = { 920 .name = "cs42l52", 921 .playback = { 922 .stream_name = "Playback", 923 .channels_min = 1, 924 .channels_max = 2, 925 .rates = CS42L52_RATES, 926 .formats = CS42L52_FORMATS, 927 }, 928 .capture = { 929 .stream_name = "Capture", 930 .channels_min = 1, 931 .channels_max = 2, 932 .rates = CS42L52_RATES, 933 .formats = CS42L52_FORMATS, 934 }, 935 .ops = &cs42l52_ops, 936 }; 937 938 static int cs42l52_suspend(struct snd_soc_codec *codec) 939 { 940 cs42l52_set_bias_level(codec, SND_SOC_BIAS_OFF); 941 942 return 0; 943 } 944 945 static int cs42l52_resume(struct snd_soc_codec *codec) 946 { 947 cs42l52_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 948 949 return 0; 950 } 951 952 #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE) 953 static int beep_rates[] = { 954 261, 522, 585, 667, 706, 774, 889, 1000, 955 1043, 1200, 1333, 1412, 1600, 1714, 2000, 2182 956 }; 957 958 static void cs42l52_beep_work(struct work_struct *work) 959 { 960 struct cs42l52_private *cs42l52 = 961 container_of(work, struct cs42l52_private, beep_work); 962 struct snd_soc_codec *codec = cs42l52->codec; 963 struct snd_soc_dapm_context *dapm = &codec->dapm; 964 int i; 965 int val = 0; 966 int best = 0; 967 968 if (cs42l52->beep_rate) { 969 for (i = 0; i < ARRAY_SIZE(beep_rates); i++) { 970 if (abs(cs42l52->beep_rate - beep_rates[i]) < 971 abs(cs42l52->beep_rate - beep_rates[best])) 972 best = i; 973 } 974 975 dev_dbg(codec->dev, "Set beep rate %dHz for requested %dHz\n", 976 beep_rates[best], cs42l52->beep_rate); 977 978 val = (best << CS42L52_BEEP_RATE_SHIFT); 979 980 snd_soc_dapm_enable_pin(dapm, "Beep"); 981 } else { 982 dev_dbg(codec->dev, "Disabling beep\n"); 983 snd_soc_dapm_disable_pin(dapm, "Beep"); 984 } 985 986 snd_soc_update_bits(codec, CS42L52_BEEP_FREQ, 987 CS42L52_BEEP_RATE_MASK, val); 988 989 snd_soc_dapm_sync(dapm); 990 } 991 992 /* For usability define a way of injecting beep events for the device - 993 * many systems will not have a keyboard. 994 */ 995 static int cs42l52_beep_event(struct input_dev *dev, unsigned int type, 996 unsigned int code, int hz) 997 { 998 struct snd_soc_codec *codec = input_get_drvdata(dev); 999 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 1000 1001 dev_dbg(codec->dev, "Beep event %x %x\n", code, hz); 1002 1003 switch (code) { 1004 case SND_BELL: 1005 if (hz) 1006 hz = 261; 1007 case SND_TONE: 1008 break; 1009 default: 1010 return -1; 1011 } 1012 1013 /* Kick the beep from a workqueue */ 1014 cs42l52->beep_rate = hz; 1015 schedule_work(&cs42l52->beep_work); 1016 return 0; 1017 } 1018 1019 static ssize_t cs42l52_beep_set(struct device *dev, 1020 struct device_attribute *attr, 1021 const char *buf, size_t count) 1022 { 1023 struct cs42l52_private *cs42l52 = dev_get_drvdata(dev); 1024 long int time; 1025 int ret; 1026 1027 ret = kstrtol(buf, 10, &time); 1028 if (ret != 0) 1029 return ret; 1030 1031 input_event(cs42l52->beep, EV_SND, SND_TONE, time); 1032 1033 return count; 1034 } 1035 1036 static DEVICE_ATTR(beep, 0200, NULL, cs42l52_beep_set); 1037 1038 static void cs42l52_init_beep(struct snd_soc_codec *codec) 1039 { 1040 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 1041 int ret; 1042 1043 cs42l52->beep = input_allocate_device(); 1044 if (!cs42l52->beep) { 1045 dev_err(codec->dev, "Failed to allocate beep device\n"); 1046 return; 1047 } 1048 1049 INIT_WORK(&cs42l52->beep_work, cs42l52_beep_work); 1050 cs42l52->beep_rate = 0; 1051 1052 cs42l52->beep->name = "CS42L52 Beep Generator"; 1053 cs42l52->beep->phys = dev_name(codec->dev); 1054 cs42l52->beep->id.bustype = BUS_I2C; 1055 1056 cs42l52->beep->evbit[0] = BIT_MASK(EV_SND); 1057 cs42l52->beep->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE); 1058 cs42l52->beep->event = cs42l52_beep_event; 1059 cs42l52->beep->dev.parent = codec->dev; 1060 input_set_drvdata(cs42l52->beep, codec); 1061 1062 ret = input_register_device(cs42l52->beep); 1063 if (ret != 0) { 1064 input_free_device(cs42l52->beep); 1065 cs42l52->beep = NULL; 1066 dev_err(codec->dev, "Failed to register beep device\n"); 1067 } 1068 1069 ret = device_create_file(codec->dev, &dev_attr_beep); 1070 if (ret != 0) { 1071 dev_err(codec->dev, "Failed to create keyclick file: %d\n", 1072 ret); 1073 } 1074 } 1075 1076 static void cs42l52_free_beep(struct snd_soc_codec *codec) 1077 { 1078 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 1079 1080 device_remove_file(codec->dev, &dev_attr_beep); 1081 input_unregister_device(cs42l52->beep); 1082 cancel_work_sync(&cs42l52->beep_work); 1083 cs42l52->beep = NULL; 1084 1085 snd_soc_update_bits(codec, CS42L52_BEEP_TONE_CTL, 1086 CS42L52_BEEP_EN_MASK, 0); 1087 } 1088 #else 1089 static void cs42l52_init_beep(struct snd_soc_codec *codec) 1090 { 1091 } 1092 1093 static void cs42l52_free_beep(struct snd_soc_codec *codec) 1094 { 1095 } 1096 #endif 1097 1098 static int cs42l52_probe(struct snd_soc_codec *codec) 1099 { 1100 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 1101 int ret; 1102 1103 codec->control_data = cs42l52->regmap; 1104 ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_REGMAP); 1105 if (ret < 0) { 1106 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); 1107 return ret; 1108 } 1109 regcache_cache_only(cs42l52->regmap, true); 1110 1111 cs42l52_init_beep(codec); 1112 1113 cs42l52_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 1114 1115 cs42l52->sysclk = CS42L52_DEFAULT_CLK; 1116 cs42l52->config.format = CS42L52_DEFAULT_FORMAT; 1117 1118 /* Set Platform MICx CFG */ 1119 snd_soc_update_bits(codec, CS42L52_MICA_CTL, 1120 CS42L52_MIC_CTL_TYPE_MASK, 1121 cs42l52->pdata.mica_cfg << 1122 CS42L52_MIC_CTL_TYPE_SHIFT); 1123 1124 snd_soc_update_bits(codec, CS42L52_MICB_CTL, 1125 CS42L52_MIC_CTL_TYPE_MASK, 1126 cs42l52->pdata.micb_cfg << 1127 CS42L52_MIC_CTL_TYPE_SHIFT); 1128 1129 /* if Single Ended, Get Mic_Select */ 1130 if (cs42l52->pdata.mica_cfg) 1131 snd_soc_update_bits(codec, CS42L52_MICA_CTL, 1132 CS42L52_MIC_CTL_MIC_SEL_MASK, 1133 cs42l52->pdata.mica_sel << 1134 CS42L52_MIC_CTL_MIC_SEL_SHIFT); 1135 if (cs42l52->pdata.micb_cfg) 1136 snd_soc_update_bits(codec, CS42L52_MICB_CTL, 1137 CS42L52_MIC_CTL_MIC_SEL_MASK, 1138 cs42l52->pdata.micb_sel << 1139 CS42L52_MIC_CTL_MIC_SEL_SHIFT); 1140 1141 /* Set Platform Charge Pump Freq */ 1142 snd_soc_update_bits(codec, CS42L52_CHARGE_PUMP, 1143 CS42L52_CHARGE_PUMP_MASK, 1144 cs42l52->pdata.chgfreq << 1145 CS42L52_CHARGE_PUMP_SHIFT); 1146 1147 /* Set Platform Bias Level */ 1148 snd_soc_update_bits(codec, CS42L52_IFACE_CTL2, 1149 CS42L52_IFACE_CTL2_BIAS_LVL, 1150 cs42l52->pdata.micbias_lvl); 1151 1152 return ret; 1153 } 1154 1155 static int cs42l52_remove(struct snd_soc_codec *codec) 1156 { 1157 cs42l52_free_beep(codec); 1158 cs42l52_set_bias_level(codec, SND_SOC_BIAS_OFF); 1159 1160 return 0; 1161 } 1162 1163 static struct snd_soc_codec_driver soc_codec_dev_cs42l52 = { 1164 .probe = cs42l52_probe, 1165 .remove = cs42l52_remove, 1166 .suspend = cs42l52_suspend, 1167 .resume = cs42l52_resume, 1168 .set_bias_level = cs42l52_set_bias_level, 1169 1170 .dapm_widgets = cs42l52_dapm_widgets, 1171 .num_dapm_widgets = ARRAY_SIZE(cs42l52_dapm_widgets), 1172 .dapm_routes = cs42l52_audio_map, 1173 .num_dapm_routes = ARRAY_SIZE(cs42l52_audio_map), 1174 1175 .controls = cs42l52_snd_controls, 1176 .num_controls = ARRAY_SIZE(cs42l52_snd_controls), 1177 }; 1178 1179 /* Current and threshold powerup sequence Pg37 */ 1180 static const struct reg_default cs42l52_threshold_patch[] = { 1181 1182 { 0x00, 0x99 }, 1183 { 0x3E, 0xBA }, 1184 { 0x47, 0x80 }, 1185 { 0x32, 0xBB }, 1186 { 0x32, 0x3B }, 1187 { 0x00, 0x00 }, 1188 1189 }; 1190 1191 static struct regmap_config cs42l52_regmap = { 1192 .reg_bits = 8, 1193 .val_bits = 8, 1194 1195 .max_register = CS42L52_MAX_REGISTER, 1196 .reg_defaults = cs42l52_reg_defaults, 1197 .num_reg_defaults = ARRAY_SIZE(cs42l52_reg_defaults), 1198 .readable_reg = cs42l52_readable_register, 1199 .volatile_reg = cs42l52_volatile_register, 1200 .cache_type = REGCACHE_RBTREE, 1201 }; 1202 1203 static int cs42l52_i2c_probe(struct i2c_client *i2c_client, 1204 const struct i2c_device_id *id) 1205 { 1206 struct cs42l52_private *cs42l52; 1207 int ret; 1208 unsigned int devid = 0; 1209 unsigned int reg; 1210 1211 cs42l52 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs42l52_private), 1212 GFP_KERNEL); 1213 if (cs42l52 == NULL) 1214 return -ENOMEM; 1215 cs42l52->dev = &i2c_client->dev; 1216 1217 cs42l52->regmap = devm_regmap_init_i2c(i2c_client, &cs42l52_regmap); 1218 if (IS_ERR(cs42l52->regmap)) { 1219 ret = PTR_ERR(cs42l52->regmap); 1220 dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret); 1221 return ret; 1222 } 1223 1224 i2c_set_clientdata(i2c_client, cs42l52); 1225 1226 if (dev_get_platdata(&i2c_client->dev)) 1227 memcpy(&cs42l52->pdata, dev_get_platdata(&i2c_client->dev), 1228 sizeof(cs42l52->pdata)); 1229 1230 ret = regmap_register_patch(cs42l52->regmap, cs42l52_threshold_patch, 1231 ARRAY_SIZE(cs42l52_threshold_patch)); 1232 if (ret != 0) 1233 dev_warn(cs42l52->dev, "Failed to apply regmap patch: %d\n", 1234 ret); 1235 1236 ret = regmap_read(cs42l52->regmap, CS42L52_CHIP, ®); 1237 devid = reg & CS42L52_CHIP_ID_MASK; 1238 if (devid != CS42L52_CHIP_ID) { 1239 ret = -ENODEV; 1240 dev_err(&i2c_client->dev, 1241 "CS42L52 Device ID (%X). Expected %X\n", 1242 devid, CS42L52_CHIP_ID); 1243 return ret; 1244 } 1245 1246 regcache_cache_only(cs42l52->regmap, true); 1247 1248 ret = snd_soc_register_codec(&i2c_client->dev, 1249 &soc_codec_dev_cs42l52, &cs42l52_dai, 1); 1250 if (ret < 0) 1251 return ret; 1252 return 0; 1253 } 1254 1255 static int cs42l52_i2c_remove(struct i2c_client *client) 1256 { 1257 snd_soc_unregister_codec(&client->dev); 1258 return 0; 1259 } 1260 1261 static const struct i2c_device_id cs42l52_id[] = { 1262 { "cs42l52", 0 }, 1263 { } 1264 }; 1265 MODULE_DEVICE_TABLE(i2c, cs42l52_id); 1266 1267 static struct i2c_driver cs42l52_i2c_driver = { 1268 .driver = { 1269 .name = "cs42l52", 1270 .owner = THIS_MODULE, 1271 }, 1272 .id_table = cs42l52_id, 1273 .probe = cs42l52_i2c_probe, 1274 .remove = cs42l52_i2c_remove, 1275 }; 1276 1277 module_i2c_driver(cs42l52_i2c_driver); 1278 1279 MODULE_DESCRIPTION("ASoC CS42L52 driver"); 1280 MODULE_AUTHOR("Georgi Vlaev, Nucleus Systems Ltd, <joe@nucleusys.com>"); 1281 MODULE_AUTHOR("Brian Austin, Cirrus Logic Inc, <brian.austin@cirrus.com>"); 1282 MODULE_LICENSE("GPL"); 1283