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 struct input_dev *beep; 54 struct work_struct beep_work; 55 int beep_rate; 56 }; 57 58 static const struct reg_default cs42l52_reg_defaults[] = { 59 { CS42L52_PWRCTL1, 0x9F }, /* r02 PWRCTL 1 */ 60 { CS42L52_PWRCTL2, 0x07 }, /* r03 PWRCTL 2 */ 61 { CS42L52_PWRCTL3, 0xFF }, /* r04 PWRCTL 3 */ 62 { CS42L52_CLK_CTL, 0xA0 }, /* r05 Clocking Ctl */ 63 { CS42L52_IFACE_CTL1, 0x00 }, /* r06 Interface Ctl 1 */ 64 { CS42L52_ADC_PGA_A, 0x80 }, /* r08 Input A Select */ 65 { CS42L52_ADC_PGA_B, 0x80 }, /* r09 Input B Select */ 66 { CS42L52_ANALOG_HPF_CTL, 0xA5 }, /* r0A Analog HPF Ctl */ 67 { CS42L52_ADC_HPF_FREQ, 0x00 }, /* r0B ADC HPF Corner Freq */ 68 { CS42L52_ADC_MISC_CTL, 0x00 }, /* r0C Misc. ADC Ctl */ 69 { CS42L52_PB_CTL1, 0x60 }, /* r0D Playback Ctl 1 */ 70 { CS42L52_MISC_CTL, 0x02 }, /* r0E Misc. Ctl */ 71 { CS42L52_PB_CTL2, 0x00 }, /* r0F Playback Ctl 2 */ 72 { CS42L52_MICA_CTL, 0x00 }, /* r10 MICA Amp Ctl */ 73 { CS42L52_MICB_CTL, 0x00 }, /* r11 MICB Amp Ctl */ 74 { CS42L52_PGAA_CTL, 0x00 }, /* r12 PGAA Vol, Misc. */ 75 { CS42L52_PGAB_CTL, 0x00 }, /* r13 PGAB Vol, Misc. */ 76 { CS42L52_PASSTHRUA_VOL, 0x00 }, /* r14 Bypass A Vol */ 77 { CS42L52_PASSTHRUB_VOL, 0x00 }, /* r15 Bypass B Vol */ 78 { CS42L52_ADCA_VOL, 0x00 }, /* r16 ADCA Volume */ 79 { CS42L52_ADCB_VOL, 0x00 }, /* r17 ADCB Volume */ 80 { CS42L52_ADCA_MIXER_VOL, 0x80 }, /* r18 ADCA Mixer Volume */ 81 { CS42L52_ADCB_MIXER_VOL, 0x80 }, /* r19 ADCB Mixer Volume */ 82 { CS42L52_PCMA_MIXER_VOL, 0x00 }, /* r1A PCMA Mixer Volume */ 83 { CS42L52_PCMB_MIXER_VOL, 0x00 }, /* r1B PCMB Mixer Volume */ 84 { CS42L52_BEEP_FREQ, 0x00 }, /* r1C Beep Freq on Time */ 85 { CS42L52_BEEP_VOL, 0x00 }, /* r1D Beep Volume off Time */ 86 { CS42L52_BEEP_TONE_CTL, 0x00 }, /* r1E Beep Tone Cfg. */ 87 { CS42L52_TONE_CTL, 0x00 }, /* r1F Tone Ctl */ 88 { CS42L52_MASTERA_VOL, 0x00 }, /* r20 Master A Volume */ 89 { CS42L52_MASTERB_VOL, 0x00 }, /* r21 Master B Volume */ 90 { CS42L52_HPA_VOL, 0x00 }, /* r22 Headphone A Volume */ 91 { CS42L52_HPB_VOL, 0x00 }, /* r23 Headphone B Volume */ 92 { CS42L52_SPKA_VOL, 0x00 }, /* r24 Speaker A Volume */ 93 { CS42L52_SPKB_VOL, 0x00 }, /* r25 Speaker B Volume */ 94 { CS42L52_ADC_PCM_MIXER, 0x00 }, /* r26 Channel Mixer and Swap */ 95 { CS42L52_LIMITER_CTL1, 0x00 }, /* r27 Limit Ctl 1 Thresholds */ 96 { CS42L52_LIMITER_CTL2, 0x7F }, /* r28 Limit Ctl 2 Release Rate */ 97 { CS42L52_LIMITER_AT_RATE, 0xC0 }, /* r29 Limiter Attack Rate */ 98 { CS42L52_ALC_CTL, 0x00 }, /* r2A ALC Ctl 1 Attack Rate */ 99 { CS42L52_ALC_RATE, 0x3F }, /* r2B ALC Release Rate */ 100 { CS42L52_ALC_THRESHOLD, 0x3f }, /* r2C ALC Thresholds */ 101 { CS42L52_NOISE_GATE_CTL, 0x00 }, /* r2D Noise Gate Ctl */ 102 { CS42L52_CLK_STATUS, 0x00 }, /* r2E Overflow and Clock Status */ 103 { CS42L52_BATT_COMPEN, 0x00 }, /* r2F battery Compensation */ 104 { CS42L52_BATT_LEVEL, 0x00 }, /* r30 VP Battery Level */ 105 { CS42L52_SPK_STATUS, 0x00 }, /* r31 Speaker Status */ 106 { CS42L52_TEM_CTL, 0x3B }, /* r32 Temp Ctl */ 107 { CS42L52_THE_FOLDBACK, 0x00 }, /* r33 Foldback */ 108 }; 109 110 static bool cs42l52_readable_register(struct device *dev, unsigned int reg) 111 { 112 switch (reg) { 113 case CS42L52_CHIP: 114 case CS42L52_PWRCTL1: 115 case CS42L52_PWRCTL2: 116 case CS42L52_PWRCTL3: 117 case CS42L52_CLK_CTL: 118 case CS42L52_IFACE_CTL1: 119 case CS42L52_IFACE_CTL2: 120 case CS42L52_ADC_PGA_A: 121 case CS42L52_ADC_PGA_B: 122 case CS42L52_ANALOG_HPF_CTL: 123 case CS42L52_ADC_HPF_FREQ: 124 case CS42L52_ADC_MISC_CTL: 125 case CS42L52_PB_CTL1: 126 case CS42L52_MISC_CTL: 127 case CS42L52_PB_CTL2: 128 case CS42L52_MICA_CTL: 129 case CS42L52_MICB_CTL: 130 case CS42L52_PGAA_CTL: 131 case CS42L52_PGAB_CTL: 132 case CS42L52_PASSTHRUA_VOL: 133 case CS42L52_PASSTHRUB_VOL: 134 case CS42L52_ADCA_VOL: 135 case CS42L52_ADCB_VOL: 136 case CS42L52_ADCA_MIXER_VOL: 137 case CS42L52_ADCB_MIXER_VOL: 138 case CS42L52_PCMA_MIXER_VOL: 139 case CS42L52_PCMB_MIXER_VOL: 140 case CS42L52_BEEP_FREQ: 141 case CS42L52_BEEP_VOL: 142 case CS42L52_BEEP_TONE_CTL: 143 case CS42L52_TONE_CTL: 144 case CS42L52_MASTERA_VOL: 145 case CS42L52_MASTERB_VOL: 146 case CS42L52_HPA_VOL: 147 case CS42L52_HPB_VOL: 148 case CS42L52_SPKA_VOL: 149 case CS42L52_SPKB_VOL: 150 case CS42L52_ADC_PCM_MIXER: 151 case CS42L52_LIMITER_CTL1: 152 case CS42L52_LIMITER_CTL2: 153 case CS42L52_LIMITER_AT_RATE: 154 case CS42L52_ALC_CTL: 155 case CS42L52_ALC_RATE: 156 case CS42L52_ALC_THRESHOLD: 157 case CS42L52_NOISE_GATE_CTL: 158 case CS42L52_CLK_STATUS: 159 case CS42L52_BATT_COMPEN: 160 case CS42L52_BATT_LEVEL: 161 case CS42L52_SPK_STATUS: 162 case CS42L52_TEM_CTL: 163 case CS42L52_THE_FOLDBACK: 164 case CS42L52_CHARGE_PUMP: 165 return true; 166 default: 167 return false; 168 } 169 } 170 171 static bool cs42l52_volatile_register(struct device *dev, unsigned int reg) 172 { 173 switch (reg) { 174 case CS42L52_IFACE_CTL2: 175 case CS42L52_CLK_STATUS: 176 case CS42L52_BATT_LEVEL: 177 case CS42L52_SPK_STATUS: 178 case CS42L52_CHARGE_PUMP: 179 return true; 180 default: 181 return false; 182 } 183 } 184 185 static DECLARE_TLV_DB_SCALE(hl_tlv, -10200, 50, 0); 186 187 static DECLARE_TLV_DB_SCALE(hpd_tlv, -9600, 50, 1); 188 189 static DECLARE_TLV_DB_SCALE(ipd_tlv, -9600, 100, 0); 190 191 static DECLARE_TLV_DB_SCALE(mic_tlv, 1600, 100, 0); 192 193 static DECLARE_TLV_DB_SCALE(pga_tlv, -600, 50, 0); 194 195 static DECLARE_TLV_DB_SCALE(mix_tlv, -50, 50, 0); 196 197 static DECLARE_TLV_DB_SCALE(beep_tlv, -56, 200, 0); 198 199 static const unsigned int limiter_tlv[] = { 200 TLV_DB_RANGE_HEAD(2), 201 0, 2, TLV_DB_SCALE_ITEM(-3000, 600, 0), 202 3, 7, TLV_DB_SCALE_ITEM(-1200, 300, 0), 203 }; 204 205 static const char * const cs42l52_adca_text[] = { 206 "Input1A", "Input2A", "Input3A", "Input4A", "PGA Input Left"}; 207 208 static const char * const cs42l52_adcb_text[] = { 209 "Input1B", "Input2B", "Input3B", "Input4B", "PGA Input Right"}; 210 211 static SOC_ENUM_SINGLE_DECL(adca_enum, 212 CS42L52_ADC_PGA_A, 5, cs42l52_adca_text); 213 214 static SOC_ENUM_SINGLE_DECL(adcb_enum, 215 CS42L52_ADC_PGA_B, 5, cs42l52_adcb_text); 216 217 static const struct snd_kcontrol_new adca_mux = 218 SOC_DAPM_ENUM("Left ADC Input Capture Mux", adca_enum); 219 220 static const struct snd_kcontrol_new adcb_mux = 221 SOC_DAPM_ENUM("Right ADC Input Capture Mux", adcb_enum); 222 223 static const char * const mic_bias_level_text[] = { 224 "0.5 +VA", "0.6 +VA", "0.7 +VA", 225 "0.8 +VA", "0.83 +VA", "0.91 +VA" 226 }; 227 228 static SOC_ENUM_SINGLE_DECL(mic_bias_level_enum, 229 CS42L52_IFACE_CTL2, 0, mic_bias_level_text); 230 231 static const char * const cs42l52_mic_text[] = { "MIC1", "MIC2" }; 232 233 static SOC_ENUM_SINGLE_DECL(mica_enum, 234 CS42L52_MICA_CTL, 5, cs42l52_mic_text); 235 236 static SOC_ENUM_SINGLE_DECL(micb_enum, 237 CS42L52_MICB_CTL, 5, cs42l52_mic_text); 238 239 static const char * const digital_output_mux_text[] = {"ADC", "DSP"}; 240 241 static SOC_ENUM_SINGLE_DECL(digital_output_mux_enum, 242 CS42L52_ADC_MISC_CTL, 6, 243 digital_output_mux_text); 244 245 static const struct snd_kcontrol_new digital_output_mux = 246 SOC_DAPM_ENUM("Digital Output Mux", digital_output_mux_enum); 247 248 static const char * const hp_gain_num_text[] = { 249 "0.3959", "0.4571", "0.5111", "0.6047", 250 "0.7099", "0.8399", "1.000", "1.1430" 251 }; 252 253 static SOC_ENUM_SINGLE_DECL(hp_gain_enum, 254 CS42L52_PB_CTL1, 5, 255 hp_gain_num_text); 256 257 static const char * const beep_pitch_text[] = { 258 "C4", "C5", "D5", "E5", "F5", "G5", "A5", "B5", 259 "C6", "D6", "E6", "F6", "G6", "A6", "B6", "C7" 260 }; 261 262 static SOC_ENUM_SINGLE_DECL(beep_pitch_enum, 263 CS42L52_BEEP_FREQ, 4, 264 beep_pitch_text); 265 266 static const char * const beep_ontime_text[] = { 267 "86 ms", "430 ms", "780 ms", "1.20 s", "1.50 s", 268 "1.80 s", "2.20 s", "2.50 s", "2.80 s", "3.20 s", 269 "3.50 s", "3.80 s", "4.20 s", "4.50 s", "4.80 s", "5.20 s" 270 }; 271 272 static SOC_ENUM_SINGLE_DECL(beep_ontime_enum, 273 CS42L52_BEEP_FREQ, 0, 274 beep_ontime_text); 275 276 static const char * const beep_offtime_text[] = { 277 "1.23 s", "2.58 s", "3.90 s", "5.20 s", 278 "6.60 s", "8.05 s", "9.35 s", "10.80 s" 279 }; 280 281 static SOC_ENUM_SINGLE_DECL(beep_offtime_enum, 282 CS42L52_BEEP_VOL, 5, 283 beep_offtime_text); 284 285 static const char * const beep_config_text[] = { 286 "Off", "Single", "Multiple", "Continuous" 287 }; 288 289 static SOC_ENUM_SINGLE_DECL(beep_config_enum, 290 CS42L52_BEEP_TONE_CTL, 6, 291 beep_config_text); 292 293 static const char * const beep_bass_text[] = { 294 "50 Hz", "100 Hz", "200 Hz", "250 Hz" 295 }; 296 297 static SOC_ENUM_SINGLE_DECL(beep_bass_enum, 298 CS42L52_BEEP_TONE_CTL, 1, 299 beep_bass_text); 300 301 static const char * const beep_treble_text[] = { 302 "5 kHz", "7 kHz", "10 kHz", " 15 kHz" 303 }; 304 305 static SOC_ENUM_SINGLE_DECL(beep_treble_enum, 306 CS42L52_BEEP_TONE_CTL, 3, 307 beep_treble_text); 308 309 static const char * const ng_threshold_text[] = { 310 "-34dB", "-37dB", "-40dB", "-43dB", 311 "-46dB", "-52dB", "-58dB", "-64dB" 312 }; 313 314 static SOC_ENUM_SINGLE_DECL(ng_threshold_enum, 315 CS42L52_NOISE_GATE_CTL, 2, 316 ng_threshold_text); 317 318 static const char * const cs42l52_ng_delay_text[] = { 319 "50ms", "100ms", "150ms", "200ms"}; 320 321 static SOC_ENUM_SINGLE_DECL(ng_delay_enum, 322 CS42L52_NOISE_GATE_CTL, 0, 323 cs42l52_ng_delay_text); 324 325 static const char * const cs42l52_ng_type_text[] = { 326 "Apply Specific", "Apply All" 327 }; 328 329 static SOC_ENUM_SINGLE_DECL(ng_type_enum, 330 CS42L52_NOISE_GATE_CTL, 6, 331 cs42l52_ng_type_text); 332 333 static const char * const left_swap_text[] = { 334 "Left", "LR 2", "Right"}; 335 336 static const char * const right_swap_text[] = { 337 "Right", "LR 2", "Left"}; 338 339 static const unsigned int swap_values[] = { 0, 1, 3 }; 340 341 static const struct soc_enum adca_swap_enum = 342 SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 2, 3, 343 ARRAY_SIZE(left_swap_text), 344 left_swap_text, 345 swap_values); 346 347 static const struct snd_kcontrol_new adca_mixer = 348 SOC_DAPM_ENUM("Route", adca_swap_enum); 349 350 static const struct soc_enum pcma_swap_enum = 351 SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 6, 3, 352 ARRAY_SIZE(left_swap_text), 353 left_swap_text, 354 swap_values); 355 356 static const struct snd_kcontrol_new pcma_mixer = 357 SOC_DAPM_ENUM("Route", pcma_swap_enum); 358 359 static const struct soc_enum adcb_swap_enum = 360 SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 0, 3, 361 ARRAY_SIZE(right_swap_text), 362 right_swap_text, 363 swap_values); 364 365 static const struct snd_kcontrol_new adcb_mixer = 366 SOC_DAPM_ENUM("Route", adcb_swap_enum); 367 368 static const struct soc_enum pcmb_swap_enum = 369 SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 4, 3, 370 ARRAY_SIZE(right_swap_text), 371 right_swap_text, 372 swap_values); 373 374 static const struct snd_kcontrol_new pcmb_mixer = 375 SOC_DAPM_ENUM("Route", pcmb_swap_enum); 376 377 378 static const struct snd_kcontrol_new passthrul_ctl = 379 SOC_DAPM_SINGLE("Switch", CS42L52_MISC_CTL, 6, 1, 0); 380 381 static const struct snd_kcontrol_new passthrur_ctl = 382 SOC_DAPM_SINGLE("Switch", CS42L52_MISC_CTL, 7, 1, 0); 383 384 static const struct snd_kcontrol_new spkl_ctl = 385 SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 0, 1, 1); 386 387 static const struct snd_kcontrol_new spkr_ctl = 388 SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 2, 1, 1); 389 390 static const struct snd_kcontrol_new hpl_ctl = 391 SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 4, 1, 1); 392 393 static const struct snd_kcontrol_new hpr_ctl = 394 SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 6, 1, 1); 395 396 static const struct snd_kcontrol_new cs42l52_snd_controls[] = { 397 398 SOC_DOUBLE_R_SX_TLV("Master Volume", CS42L52_MASTERA_VOL, 399 CS42L52_MASTERB_VOL, 0, 0x34, 0xE4, hl_tlv), 400 401 SOC_DOUBLE_R_SX_TLV("Headphone Volume", CS42L52_HPA_VOL, 402 CS42L52_HPB_VOL, 0, 0x34, 0xC0, hpd_tlv), 403 404 SOC_ENUM("Headphone Analog Gain", hp_gain_enum), 405 406 SOC_DOUBLE_R_SX_TLV("Speaker Volume", CS42L52_SPKA_VOL, 407 CS42L52_SPKB_VOL, 0, 0x40, 0xC0, hl_tlv), 408 409 SOC_DOUBLE_R_SX_TLV("Bypass Volume", CS42L52_PASSTHRUA_VOL, 410 CS42L52_PASSTHRUB_VOL, 0, 0x88, 0x90, pga_tlv), 411 412 SOC_DOUBLE("Bypass Mute", CS42L52_MISC_CTL, 4, 5, 1, 0), 413 414 SOC_DOUBLE_R_TLV("MIC Gain Volume", CS42L52_MICA_CTL, 415 CS42L52_MICB_CTL, 0, 0x10, 0, mic_tlv), 416 417 SOC_ENUM("MIC Bias Level", mic_bias_level_enum), 418 419 SOC_DOUBLE_R_SX_TLV("ADC Volume", CS42L52_ADCA_VOL, 420 CS42L52_ADCB_VOL, 0, 0xA0, 0x78, ipd_tlv), 421 SOC_DOUBLE_R_SX_TLV("ADC Mixer Volume", 422 CS42L52_ADCA_MIXER_VOL, CS42L52_ADCB_MIXER_VOL, 423 0, 0x19, 0x7F, ipd_tlv), 424 425 SOC_DOUBLE("ADC Switch", CS42L52_ADC_MISC_CTL, 0, 1, 1, 0), 426 427 SOC_DOUBLE_R("ADC Mixer Switch", CS42L52_ADCA_MIXER_VOL, 428 CS42L52_ADCB_MIXER_VOL, 7, 1, 1), 429 430 SOC_DOUBLE_R_SX_TLV("PGA Volume", CS42L52_PGAA_CTL, 431 CS42L52_PGAB_CTL, 0, 0x28, 0x24, pga_tlv), 432 433 SOC_DOUBLE_R_SX_TLV("PCM Mixer Volume", 434 CS42L52_PCMA_MIXER_VOL, CS42L52_PCMB_MIXER_VOL, 435 0, 0x19, 0x7f, mix_tlv), 436 SOC_DOUBLE_R("PCM Mixer Switch", 437 CS42L52_PCMA_MIXER_VOL, CS42L52_PCMB_MIXER_VOL, 7, 1, 1), 438 439 SOC_ENUM("Beep Config", beep_config_enum), 440 SOC_ENUM("Beep Pitch", beep_pitch_enum), 441 SOC_ENUM("Beep on Time", beep_ontime_enum), 442 SOC_ENUM("Beep off Time", beep_offtime_enum), 443 SOC_SINGLE_SX_TLV("Beep Volume", CS42L52_BEEP_VOL, 444 0, 0x07, 0x1f, beep_tlv), 445 SOC_SINGLE("Beep Mixer Switch", CS42L52_BEEP_TONE_CTL, 5, 1, 1), 446 SOC_ENUM("Beep Treble Corner Freq", beep_treble_enum), 447 SOC_ENUM("Beep Bass Corner Freq", beep_bass_enum), 448 449 SOC_SINGLE("Tone Control Switch", CS42L52_BEEP_TONE_CTL, 0, 1, 1), 450 SOC_SINGLE_TLV("Treble Gain Volume", 451 CS42L52_TONE_CTL, 4, 15, 1, hl_tlv), 452 SOC_SINGLE_TLV("Bass Gain Volume", 453 CS42L52_TONE_CTL, 0, 15, 1, hl_tlv), 454 455 /* Limiter */ 456 SOC_SINGLE_TLV("Limiter Max Threshold Volume", 457 CS42L52_LIMITER_CTL1, 5, 7, 0, limiter_tlv), 458 SOC_SINGLE_TLV("Limiter Cushion Threshold Volume", 459 CS42L52_LIMITER_CTL1, 2, 7, 0, limiter_tlv), 460 SOC_SINGLE_TLV("Limiter Release Rate Volume", 461 CS42L52_LIMITER_CTL2, 0, 63, 0, limiter_tlv), 462 SOC_SINGLE_TLV("Limiter Attack Rate Volume", 463 CS42L52_LIMITER_AT_RATE, 0, 63, 0, limiter_tlv), 464 465 SOC_SINGLE("Limiter SR Switch", CS42L52_LIMITER_CTL1, 1, 1, 0), 466 SOC_SINGLE("Limiter ZC Switch", CS42L52_LIMITER_CTL1, 0, 1, 0), 467 SOC_SINGLE("Limiter Switch", CS42L52_LIMITER_CTL2, 7, 1, 0), 468 469 /* ALC */ 470 SOC_SINGLE_TLV("ALC Attack Rate Volume", CS42L52_ALC_CTL, 471 0, 63, 0, limiter_tlv), 472 SOC_SINGLE_TLV("ALC Release Rate Volume", CS42L52_ALC_RATE, 473 0, 63, 0, limiter_tlv), 474 SOC_SINGLE_TLV("ALC Max Threshold Volume", CS42L52_ALC_THRESHOLD, 475 5, 7, 0, limiter_tlv), 476 SOC_SINGLE_TLV("ALC Min Threshold Volume", CS42L52_ALC_THRESHOLD, 477 2, 7, 0, limiter_tlv), 478 479 SOC_DOUBLE_R("ALC SR Capture Switch", CS42L52_PGAA_CTL, 480 CS42L52_PGAB_CTL, 7, 1, 1), 481 SOC_DOUBLE_R("ALC ZC Capture Switch", CS42L52_PGAA_CTL, 482 CS42L52_PGAB_CTL, 6, 1, 1), 483 SOC_DOUBLE("ALC Capture Switch", CS42L52_ALC_CTL, 6, 7, 1, 0), 484 485 /* Noise gate */ 486 SOC_ENUM("NG Type Switch", ng_type_enum), 487 SOC_SINGLE("NG Enable Switch", CS42L52_NOISE_GATE_CTL, 6, 1, 0), 488 SOC_SINGLE("NG Boost Switch", CS42L52_NOISE_GATE_CTL, 5, 1, 1), 489 SOC_ENUM("NG Threshold", ng_threshold_enum), 490 SOC_ENUM("NG Delay", ng_delay_enum), 491 492 SOC_DOUBLE("HPF Switch", CS42L52_ANALOG_HPF_CTL, 5, 7, 1, 0), 493 494 SOC_DOUBLE("Analog SR Switch", CS42L52_ANALOG_HPF_CTL, 1, 3, 1, 1), 495 SOC_DOUBLE("Analog ZC Switch", CS42L52_ANALOG_HPF_CTL, 0, 2, 1, 1), 496 SOC_SINGLE("Digital SR Switch", CS42L52_MISC_CTL, 1, 1, 0), 497 SOC_SINGLE("Digital ZC Switch", CS42L52_MISC_CTL, 0, 1, 0), 498 SOC_SINGLE("Deemphasis Switch", CS42L52_MISC_CTL, 2, 1, 0), 499 500 SOC_SINGLE("Batt Compensation Switch", CS42L52_BATT_COMPEN, 7, 1, 0), 501 SOC_SINGLE("Batt VP Monitor Switch", CS42L52_BATT_COMPEN, 6, 1, 0), 502 SOC_SINGLE("Batt VP ref", CS42L52_BATT_COMPEN, 0, 0x0f, 0), 503 504 SOC_SINGLE("PGA AIN1L Switch", CS42L52_ADC_PGA_A, 0, 1, 0), 505 SOC_SINGLE("PGA AIN1R Switch", CS42L52_ADC_PGA_B, 0, 1, 0), 506 SOC_SINGLE("PGA AIN2L Switch", CS42L52_ADC_PGA_A, 1, 1, 0), 507 SOC_SINGLE("PGA AIN2R Switch", CS42L52_ADC_PGA_B, 1, 1, 0), 508 509 SOC_SINGLE("PGA AIN3L Switch", CS42L52_ADC_PGA_A, 2, 1, 0), 510 SOC_SINGLE("PGA AIN3R Switch", CS42L52_ADC_PGA_B, 2, 1, 0), 511 512 SOC_SINGLE("PGA AIN4L Switch", CS42L52_ADC_PGA_A, 3, 1, 0), 513 SOC_SINGLE("PGA AIN4R Switch", CS42L52_ADC_PGA_B, 3, 1, 0), 514 515 SOC_SINGLE("PGA MICA Switch", CS42L52_ADC_PGA_A, 4, 1, 0), 516 SOC_SINGLE("PGA MICB Switch", CS42L52_ADC_PGA_B, 4, 1, 0), 517 518 }; 519 520 static const struct snd_kcontrol_new cs42l52_mica_controls[] = { 521 SOC_ENUM("MICA Select", mica_enum), 522 }; 523 524 static const struct snd_kcontrol_new cs42l52_micb_controls[] = { 525 SOC_ENUM("MICB Select", micb_enum), 526 }; 527 528 static int cs42l52_add_mic_controls(struct snd_soc_codec *codec) 529 { 530 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 531 struct cs42l52_platform_data *pdata = &cs42l52->pdata; 532 533 if (!pdata->mica_diff_cfg) 534 snd_soc_add_codec_controls(codec, cs42l52_mica_controls, 535 ARRAY_SIZE(cs42l52_mica_controls)); 536 537 if (!pdata->micb_diff_cfg) 538 snd_soc_add_codec_controls(codec, cs42l52_micb_controls, 539 ARRAY_SIZE(cs42l52_micb_controls)); 540 541 return 0; 542 } 543 544 static const struct snd_soc_dapm_widget cs42l52_dapm_widgets[] = { 545 546 SND_SOC_DAPM_INPUT("AIN1L"), 547 SND_SOC_DAPM_INPUT("AIN1R"), 548 SND_SOC_DAPM_INPUT("AIN2L"), 549 SND_SOC_DAPM_INPUT("AIN2R"), 550 SND_SOC_DAPM_INPUT("AIN3L"), 551 SND_SOC_DAPM_INPUT("AIN3R"), 552 SND_SOC_DAPM_INPUT("AIN4L"), 553 SND_SOC_DAPM_INPUT("AIN4R"), 554 SND_SOC_DAPM_INPUT("MICA"), 555 SND_SOC_DAPM_INPUT("MICB"), 556 SND_SOC_DAPM_SIGGEN("Beep"), 557 558 SND_SOC_DAPM_AIF_OUT("AIFOUTL", NULL, 0, 559 SND_SOC_NOPM, 0, 0), 560 SND_SOC_DAPM_AIF_OUT("AIFOUTR", NULL, 0, 561 SND_SOC_NOPM, 0, 0), 562 563 SND_SOC_DAPM_ADC("ADC Left", NULL, CS42L52_PWRCTL1, 1, 1), 564 SND_SOC_DAPM_ADC("ADC Right", NULL, CS42L52_PWRCTL1, 2, 1), 565 SND_SOC_DAPM_PGA("PGA Left", CS42L52_PWRCTL1, 3, 1, NULL, 0), 566 SND_SOC_DAPM_PGA("PGA Right", CS42L52_PWRCTL1, 4, 1, NULL, 0), 567 568 SND_SOC_DAPM_MUX("ADC Left Mux", SND_SOC_NOPM, 0, 0, &adca_mux), 569 SND_SOC_DAPM_MUX("ADC Right Mux", SND_SOC_NOPM, 0, 0, &adcb_mux), 570 571 SND_SOC_DAPM_MUX("ADC Left Swap", SND_SOC_NOPM, 572 0, 0, &adca_mixer), 573 SND_SOC_DAPM_MUX("ADC Right Swap", SND_SOC_NOPM, 574 0, 0, &adcb_mixer), 575 576 SND_SOC_DAPM_MUX("Output Mux", SND_SOC_NOPM, 577 0, 0, &digital_output_mux), 578 579 SND_SOC_DAPM_PGA("PGA MICA", CS42L52_PWRCTL2, 1, 1, NULL, 0), 580 SND_SOC_DAPM_PGA("PGA MICB", CS42L52_PWRCTL2, 2, 1, NULL, 0), 581 582 SND_SOC_DAPM_SUPPLY("Mic Bias", CS42L52_PWRCTL2, 0, 1, NULL, 0), 583 SND_SOC_DAPM_SUPPLY("Charge Pump", CS42L52_PWRCTL1, 7, 1, NULL, 0), 584 585 SND_SOC_DAPM_AIF_IN("AIFINL", NULL, 0, 586 SND_SOC_NOPM, 0, 0), 587 SND_SOC_DAPM_AIF_IN("AIFINR", NULL, 0, 588 SND_SOC_NOPM, 0, 0), 589 590 SND_SOC_DAPM_DAC("DAC Left", NULL, SND_SOC_NOPM, 0, 0), 591 SND_SOC_DAPM_DAC("DAC Right", NULL, SND_SOC_NOPM, 0, 0), 592 593 SND_SOC_DAPM_SWITCH("Bypass Left", CS42L52_MISC_CTL, 594 6, 0, &passthrul_ctl), 595 SND_SOC_DAPM_SWITCH("Bypass Right", CS42L52_MISC_CTL, 596 7, 0, &passthrur_ctl), 597 598 SND_SOC_DAPM_MUX("PCM Left Swap", SND_SOC_NOPM, 599 0, 0, &pcma_mixer), 600 SND_SOC_DAPM_MUX("PCM Right Swap", SND_SOC_NOPM, 601 0, 0, &pcmb_mixer), 602 603 SND_SOC_DAPM_SWITCH("HP Left Amp", SND_SOC_NOPM, 0, 0, &hpl_ctl), 604 SND_SOC_DAPM_SWITCH("HP Right Amp", SND_SOC_NOPM, 0, 0, &hpr_ctl), 605 606 SND_SOC_DAPM_SWITCH("SPK Left Amp", SND_SOC_NOPM, 0, 0, &spkl_ctl), 607 SND_SOC_DAPM_SWITCH("SPK Right Amp", SND_SOC_NOPM, 0, 0, &spkr_ctl), 608 609 SND_SOC_DAPM_OUTPUT("HPOUTA"), 610 SND_SOC_DAPM_OUTPUT("HPOUTB"), 611 SND_SOC_DAPM_OUTPUT("SPKOUTA"), 612 SND_SOC_DAPM_OUTPUT("SPKOUTB"), 613 614 }; 615 616 static const struct snd_soc_dapm_route cs42l52_audio_map[] = { 617 618 {"Capture", NULL, "AIFOUTL"}, 619 {"Capture", NULL, "AIFOUTL"}, 620 621 {"AIFOUTL", NULL, "Output Mux"}, 622 {"AIFOUTR", NULL, "Output Mux"}, 623 624 {"Output Mux", "ADC", "ADC Left"}, 625 {"Output Mux", "ADC", "ADC Right"}, 626 627 {"ADC Left", NULL, "Charge Pump"}, 628 {"ADC Right", NULL, "Charge Pump"}, 629 630 {"Charge Pump", NULL, "ADC Left Mux"}, 631 {"Charge Pump", NULL, "ADC Right Mux"}, 632 633 {"ADC Left Mux", "Input1A", "AIN1L"}, 634 {"ADC Right Mux", "Input1B", "AIN1R"}, 635 {"ADC Left Mux", "Input2A", "AIN2L"}, 636 {"ADC Right Mux", "Input2B", "AIN2R"}, 637 {"ADC Left Mux", "Input3A", "AIN3L"}, 638 {"ADC Right Mux", "Input3B", "AIN3R"}, 639 {"ADC Left Mux", "Input4A", "AIN4L"}, 640 {"ADC Right Mux", "Input4B", "AIN4R"}, 641 {"ADC Left Mux", "PGA Input Left", "PGA Left"}, 642 {"ADC Right Mux", "PGA Input Right" , "PGA Right"}, 643 644 {"PGA Left", "Switch", "AIN1L"}, 645 {"PGA Right", "Switch", "AIN1R"}, 646 {"PGA Left", "Switch", "AIN2L"}, 647 {"PGA Right", "Switch", "AIN2R"}, 648 {"PGA Left", "Switch", "AIN3L"}, 649 {"PGA Right", "Switch", "AIN3R"}, 650 {"PGA Left", "Switch", "AIN4L"}, 651 {"PGA Right", "Switch", "AIN4R"}, 652 653 {"PGA Left", "Switch", "PGA MICA"}, 654 {"PGA MICA", NULL, "MICA"}, 655 656 {"PGA Right", "Switch", "PGA MICB"}, 657 {"PGA MICB", NULL, "MICB"}, 658 659 {"HPOUTA", NULL, "HP Left Amp"}, 660 {"HPOUTB", NULL, "HP Right Amp"}, 661 {"HP Left Amp", NULL, "Bypass Left"}, 662 {"HP Right Amp", NULL, "Bypass Right"}, 663 {"Bypass Left", "Switch", "PGA Left"}, 664 {"Bypass Right", "Switch", "PGA Right"}, 665 {"HP Left Amp", "Switch", "DAC Left"}, 666 {"HP Right Amp", "Switch", "DAC Right"}, 667 668 {"SPKOUTA", NULL, "SPK Left Amp"}, 669 {"SPKOUTB", NULL, "SPK Right Amp"}, 670 671 {"SPK Left Amp", NULL, "Beep"}, 672 {"SPK Right Amp", NULL, "Beep"}, 673 {"SPK Left Amp", "Switch", "Playback"}, 674 {"SPK Right Amp", "Switch", "Playback"}, 675 676 {"DAC Left", NULL, "Beep"}, 677 {"DAC Right", NULL, "Beep"}, 678 {"DAC Left", NULL, "Playback"}, 679 {"DAC Right", NULL, "Playback"}, 680 681 {"Output Mux", "DSP", "Playback"}, 682 {"Output Mux", "DSP", "Playback"}, 683 684 {"AIFINL", NULL, "Playback"}, 685 {"AIFINR", NULL, "Playback"}, 686 687 }; 688 689 struct cs42l52_clk_para { 690 u32 mclk; 691 u32 rate; 692 u8 speed; 693 u8 group; 694 u8 videoclk; 695 u8 ratio; 696 u8 mclkdiv2; 697 }; 698 699 static const struct cs42l52_clk_para clk_map_table[] = { 700 /*8k*/ 701 {12288000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 702 {18432000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 703 {12000000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 0}, 704 {24000000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 1}, 705 {27000000, 8000, CLK_QS_MODE, CLK_32K, CLK_27M_MCLK, CLK_R_125, 0}, 706 707 /*11.025k*/ 708 {11289600, 11025, CLK_QS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 709 {16934400, 11025, CLK_QS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 710 711 /*16k*/ 712 {12288000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 713 {18432000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 714 {12000000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 0}, 715 {24000000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 1}, 716 {27000000, 16000, CLK_HS_MODE, CLK_32K, CLK_27M_MCLK, CLK_R_125, 1}, 717 718 /*22.05k*/ 719 {11289600, 22050, CLK_HS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 720 {16934400, 22050, CLK_HS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 721 722 /* 32k */ 723 {12288000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 724 {18432000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 725 {12000000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 0}, 726 {24000000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 1}, 727 {27000000, 32000, CLK_SS_MODE, CLK_32K, CLK_27M_MCLK, CLK_R_125, 0}, 728 729 /* 44.1k */ 730 {11289600, 44100, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 731 {16934400, 44100, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 732 733 /* 48k */ 734 {12288000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 735 {18432000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 736 {12000000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 0}, 737 {24000000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 1}, 738 {27000000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_27M_MCLK, CLK_R_125, 1}, 739 740 /* 88.2k */ 741 {11289600, 88200, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 742 {16934400, 88200, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 743 744 /* 96k */ 745 {12288000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 746 {18432000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 747 {12000000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 0}, 748 {24000000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 1}, 749 }; 750 751 static int cs42l52_get_clk(int mclk, int rate) 752 { 753 int i, ret = -EINVAL; 754 u_int mclk1, mclk2 = 0; 755 756 for (i = 0; i < ARRAY_SIZE(clk_map_table); i++) { 757 if (clk_map_table[i].rate == rate) { 758 mclk1 = clk_map_table[i].mclk; 759 if (abs(mclk - mclk1) < abs(mclk - mclk2)) { 760 mclk2 = mclk1; 761 ret = i; 762 } 763 } 764 } 765 return ret; 766 } 767 768 static int cs42l52_set_sysclk(struct snd_soc_dai *codec_dai, 769 int clk_id, unsigned int freq, int dir) 770 { 771 struct snd_soc_codec *codec = codec_dai->codec; 772 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 773 774 if ((freq >= CS42L52_MIN_CLK) && (freq <= CS42L52_MAX_CLK)) { 775 cs42l52->sysclk = freq; 776 } else { 777 dev_err(codec->dev, "Invalid freq parameter\n"); 778 return -EINVAL; 779 } 780 return 0; 781 } 782 783 static int cs42l52_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) 784 { 785 struct snd_soc_codec *codec = codec_dai->codec; 786 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 787 u8 iface = 0; 788 789 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 790 case SND_SOC_DAIFMT_CBM_CFM: 791 iface = CS42L52_IFACE_CTL1_MASTER; 792 break; 793 case SND_SOC_DAIFMT_CBS_CFS: 794 iface = CS42L52_IFACE_CTL1_SLAVE; 795 break; 796 default: 797 return -EINVAL; 798 } 799 800 /* interface format */ 801 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 802 case SND_SOC_DAIFMT_I2S: 803 iface |= CS42L52_IFACE_CTL1_ADC_FMT_I2S | 804 CS42L52_IFACE_CTL1_DAC_FMT_I2S; 805 break; 806 case SND_SOC_DAIFMT_RIGHT_J: 807 iface |= CS42L52_IFACE_CTL1_DAC_FMT_RIGHT_J; 808 break; 809 case SND_SOC_DAIFMT_LEFT_J: 810 iface |= CS42L52_IFACE_CTL1_ADC_FMT_LEFT_J | 811 CS42L52_IFACE_CTL1_DAC_FMT_LEFT_J; 812 break; 813 case SND_SOC_DAIFMT_DSP_A: 814 iface |= CS42L52_IFACE_CTL1_DSP_MODE_EN; 815 break; 816 case SND_SOC_DAIFMT_DSP_B: 817 break; 818 default: 819 return -EINVAL; 820 } 821 822 /* clock inversion */ 823 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 824 case SND_SOC_DAIFMT_NB_NF: 825 break; 826 case SND_SOC_DAIFMT_IB_IF: 827 iface |= CS42L52_IFACE_CTL1_INV_SCLK; 828 break; 829 case SND_SOC_DAIFMT_IB_NF: 830 iface |= CS42L52_IFACE_CTL1_INV_SCLK; 831 break; 832 case SND_SOC_DAIFMT_NB_IF: 833 break; 834 default: 835 return -EINVAL; 836 } 837 cs42l52->config.format = iface; 838 snd_soc_write(codec, CS42L52_IFACE_CTL1, cs42l52->config.format); 839 840 return 0; 841 } 842 843 static int cs42l52_digital_mute(struct snd_soc_dai *dai, int mute) 844 { 845 struct snd_soc_codec *codec = dai->codec; 846 847 if (mute) 848 snd_soc_update_bits(codec, CS42L52_PB_CTL1, 849 CS42L52_PB_CTL1_MUTE_MASK, 850 CS42L52_PB_CTL1_MUTE); 851 else 852 snd_soc_update_bits(codec, CS42L52_PB_CTL1, 853 CS42L52_PB_CTL1_MUTE_MASK, 854 CS42L52_PB_CTL1_UNMUTE); 855 856 return 0; 857 } 858 859 static int cs42l52_pcm_hw_params(struct snd_pcm_substream *substream, 860 struct snd_pcm_hw_params *params, 861 struct snd_soc_dai *dai) 862 { 863 struct snd_soc_codec *codec = dai->codec; 864 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 865 u32 clk = 0; 866 int index; 867 868 index = cs42l52_get_clk(cs42l52->sysclk, params_rate(params)); 869 if (index >= 0) { 870 cs42l52->sysclk = clk_map_table[index].mclk; 871 872 clk |= (clk_map_table[index].speed << CLK_SPEED_SHIFT) | 873 (clk_map_table[index].group << CLK_32K_SR_SHIFT) | 874 (clk_map_table[index].videoclk << CLK_27M_MCLK_SHIFT) | 875 (clk_map_table[index].ratio << CLK_RATIO_SHIFT) | 876 clk_map_table[index].mclkdiv2; 877 878 snd_soc_write(codec, CS42L52_CLK_CTL, clk); 879 } else { 880 dev_err(codec->dev, "can't get correct mclk\n"); 881 return -EINVAL; 882 } 883 884 return 0; 885 } 886 887 static int cs42l52_set_bias_level(struct snd_soc_codec *codec, 888 enum snd_soc_bias_level level) 889 { 890 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 891 892 switch (level) { 893 case SND_SOC_BIAS_ON: 894 break; 895 case SND_SOC_BIAS_PREPARE: 896 snd_soc_update_bits(codec, CS42L52_PWRCTL1, 897 CS42L52_PWRCTL1_PDN_CODEC, 0); 898 break; 899 case SND_SOC_BIAS_STANDBY: 900 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { 901 regcache_cache_only(cs42l52->regmap, false); 902 regcache_sync(cs42l52->regmap); 903 } 904 snd_soc_write(codec, CS42L52_PWRCTL1, CS42L52_PWRCTL1_PDN_ALL); 905 break; 906 case SND_SOC_BIAS_OFF: 907 snd_soc_write(codec, CS42L52_PWRCTL1, CS42L52_PWRCTL1_PDN_ALL); 908 regcache_cache_only(cs42l52->regmap, true); 909 break; 910 } 911 codec->dapm.bias_level = level; 912 913 return 0; 914 } 915 916 #define CS42L52_RATES (SNDRV_PCM_RATE_8000_96000) 917 918 #define CS42L52_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE | \ 919 SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_U18_3LE | \ 920 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_U20_3LE | \ 921 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_U24_LE) 922 923 static struct snd_soc_dai_ops cs42l52_ops = { 924 .hw_params = cs42l52_pcm_hw_params, 925 .digital_mute = cs42l52_digital_mute, 926 .set_fmt = cs42l52_set_fmt, 927 .set_sysclk = cs42l52_set_sysclk, 928 }; 929 930 static struct snd_soc_dai_driver cs42l52_dai = { 931 .name = "cs42l52", 932 .playback = { 933 .stream_name = "Playback", 934 .channels_min = 1, 935 .channels_max = 2, 936 .rates = CS42L52_RATES, 937 .formats = CS42L52_FORMATS, 938 }, 939 .capture = { 940 .stream_name = "Capture", 941 .channels_min = 1, 942 .channels_max = 2, 943 .rates = CS42L52_RATES, 944 .formats = CS42L52_FORMATS, 945 }, 946 .ops = &cs42l52_ops, 947 }; 948 949 static int beep_rates[] = { 950 261, 522, 585, 667, 706, 774, 889, 1000, 951 1043, 1200, 1333, 1412, 1600, 1714, 2000, 2182 952 }; 953 954 static void cs42l52_beep_work(struct work_struct *work) 955 { 956 struct cs42l52_private *cs42l52 = 957 container_of(work, struct cs42l52_private, beep_work); 958 struct snd_soc_codec *codec = cs42l52->codec; 959 struct snd_soc_dapm_context *dapm = &codec->dapm; 960 int i; 961 int val = 0; 962 int best = 0; 963 964 if (cs42l52->beep_rate) { 965 for (i = 0; i < ARRAY_SIZE(beep_rates); i++) { 966 if (abs(cs42l52->beep_rate - beep_rates[i]) < 967 abs(cs42l52->beep_rate - beep_rates[best])) 968 best = i; 969 } 970 971 dev_dbg(codec->dev, "Set beep rate %dHz for requested %dHz\n", 972 beep_rates[best], cs42l52->beep_rate); 973 974 val = (best << CS42L52_BEEP_RATE_SHIFT); 975 976 snd_soc_dapm_enable_pin(dapm, "Beep"); 977 } else { 978 dev_dbg(codec->dev, "Disabling beep\n"); 979 snd_soc_dapm_disable_pin(dapm, "Beep"); 980 } 981 982 snd_soc_update_bits(codec, CS42L52_BEEP_FREQ, 983 CS42L52_BEEP_RATE_MASK, val); 984 985 snd_soc_dapm_sync(dapm); 986 } 987 988 /* For usability define a way of injecting beep events for the device - 989 * many systems will not have a keyboard. 990 */ 991 static int cs42l52_beep_event(struct input_dev *dev, unsigned int type, 992 unsigned int code, int hz) 993 { 994 struct snd_soc_codec *codec = input_get_drvdata(dev); 995 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 996 997 dev_dbg(codec->dev, "Beep event %x %x\n", code, hz); 998 999 switch (code) { 1000 case SND_BELL: 1001 if (hz) 1002 hz = 261; 1003 case SND_TONE: 1004 break; 1005 default: 1006 return -1; 1007 } 1008 1009 /* Kick the beep from a workqueue */ 1010 cs42l52->beep_rate = hz; 1011 schedule_work(&cs42l52->beep_work); 1012 return 0; 1013 } 1014 1015 static ssize_t cs42l52_beep_set(struct device *dev, 1016 struct device_attribute *attr, 1017 const char *buf, size_t count) 1018 { 1019 struct cs42l52_private *cs42l52 = dev_get_drvdata(dev); 1020 long int time; 1021 int ret; 1022 1023 ret = kstrtol(buf, 10, &time); 1024 if (ret != 0) 1025 return ret; 1026 1027 input_event(cs42l52->beep, EV_SND, SND_TONE, time); 1028 1029 return count; 1030 } 1031 1032 static DEVICE_ATTR(beep, 0200, NULL, cs42l52_beep_set); 1033 1034 static void cs42l52_init_beep(struct snd_soc_codec *codec) 1035 { 1036 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 1037 int ret; 1038 1039 cs42l52->beep = devm_input_allocate_device(codec->dev); 1040 if (!cs42l52->beep) { 1041 dev_err(codec->dev, "Failed to allocate beep device\n"); 1042 return; 1043 } 1044 1045 INIT_WORK(&cs42l52->beep_work, cs42l52_beep_work); 1046 cs42l52->beep_rate = 0; 1047 1048 cs42l52->beep->name = "CS42L52 Beep Generator"; 1049 cs42l52->beep->phys = dev_name(codec->dev); 1050 cs42l52->beep->id.bustype = BUS_I2C; 1051 1052 cs42l52->beep->evbit[0] = BIT_MASK(EV_SND); 1053 cs42l52->beep->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE); 1054 cs42l52->beep->event = cs42l52_beep_event; 1055 cs42l52->beep->dev.parent = codec->dev; 1056 input_set_drvdata(cs42l52->beep, codec); 1057 1058 ret = input_register_device(cs42l52->beep); 1059 if (ret != 0) { 1060 cs42l52->beep = NULL; 1061 dev_err(codec->dev, "Failed to register beep device\n"); 1062 } 1063 1064 ret = device_create_file(codec->dev, &dev_attr_beep); 1065 if (ret != 0) { 1066 dev_err(codec->dev, "Failed to create keyclick file: %d\n", 1067 ret); 1068 } 1069 } 1070 1071 static void cs42l52_free_beep(struct snd_soc_codec *codec) 1072 { 1073 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 1074 1075 device_remove_file(codec->dev, &dev_attr_beep); 1076 cancel_work_sync(&cs42l52->beep_work); 1077 cs42l52->beep = NULL; 1078 1079 snd_soc_update_bits(codec, CS42L52_BEEP_TONE_CTL, 1080 CS42L52_BEEP_EN_MASK, 0); 1081 } 1082 1083 static int cs42l52_probe(struct snd_soc_codec *codec) 1084 { 1085 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); 1086 1087 regcache_cache_only(cs42l52->regmap, true); 1088 1089 cs42l52_add_mic_controls(codec); 1090 1091 cs42l52_init_beep(codec); 1092 1093 cs42l52->sysclk = CS42L52_DEFAULT_CLK; 1094 cs42l52->config.format = CS42L52_DEFAULT_FORMAT; 1095 1096 return 0; 1097 } 1098 1099 static int cs42l52_remove(struct snd_soc_codec *codec) 1100 { 1101 cs42l52_free_beep(codec); 1102 1103 return 0; 1104 } 1105 1106 static const struct snd_soc_codec_driver soc_codec_dev_cs42l52 = { 1107 .probe = cs42l52_probe, 1108 .remove = cs42l52_remove, 1109 .set_bias_level = cs42l52_set_bias_level, 1110 .suspend_bias_off = true, 1111 1112 .dapm_widgets = cs42l52_dapm_widgets, 1113 .num_dapm_widgets = ARRAY_SIZE(cs42l52_dapm_widgets), 1114 .dapm_routes = cs42l52_audio_map, 1115 .num_dapm_routes = ARRAY_SIZE(cs42l52_audio_map), 1116 1117 .controls = cs42l52_snd_controls, 1118 .num_controls = ARRAY_SIZE(cs42l52_snd_controls), 1119 }; 1120 1121 /* Current and threshold powerup sequence Pg37 */ 1122 static const struct reg_default cs42l52_threshold_patch[] = { 1123 1124 { 0x00, 0x99 }, 1125 { 0x3E, 0xBA }, 1126 { 0x47, 0x80 }, 1127 { 0x32, 0xBB }, 1128 { 0x32, 0x3B }, 1129 { 0x00, 0x00 }, 1130 1131 }; 1132 1133 static const struct regmap_config cs42l52_regmap = { 1134 .reg_bits = 8, 1135 .val_bits = 8, 1136 1137 .max_register = CS42L52_MAX_REGISTER, 1138 .reg_defaults = cs42l52_reg_defaults, 1139 .num_reg_defaults = ARRAY_SIZE(cs42l52_reg_defaults), 1140 .readable_reg = cs42l52_readable_register, 1141 .volatile_reg = cs42l52_volatile_register, 1142 .cache_type = REGCACHE_RBTREE, 1143 }; 1144 1145 static int cs42l52_i2c_probe(struct i2c_client *i2c_client, 1146 const struct i2c_device_id *id) 1147 { 1148 struct cs42l52_private *cs42l52; 1149 struct cs42l52_platform_data *pdata = dev_get_platdata(&i2c_client->dev); 1150 int ret; 1151 unsigned int devid = 0; 1152 unsigned int reg; 1153 u32 val32; 1154 1155 cs42l52 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs42l52_private), 1156 GFP_KERNEL); 1157 if (cs42l52 == NULL) 1158 return -ENOMEM; 1159 cs42l52->dev = &i2c_client->dev; 1160 1161 cs42l52->regmap = devm_regmap_init_i2c(i2c_client, &cs42l52_regmap); 1162 if (IS_ERR(cs42l52->regmap)) { 1163 ret = PTR_ERR(cs42l52->regmap); 1164 dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret); 1165 return ret; 1166 } 1167 if (pdata) { 1168 cs42l52->pdata = *pdata; 1169 } else { 1170 pdata = devm_kzalloc(&i2c_client->dev, 1171 sizeof(struct cs42l52_platform_data), 1172 GFP_KERNEL); 1173 if (!pdata) { 1174 dev_err(&i2c_client->dev, "could not allocate pdata\n"); 1175 return -ENOMEM; 1176 } 1177 if (i2c_client->dev.of_node) { 1178 if (of_property_read_bool(i2c_client->dev.of_node, 1179 "cirrus,mica-differential-cfg")) 1180 pdata->mica_diff_cfg = true; 1181 1182 if (of_property_read_bool(i2c_client->dev.of_node, 1183 "cirrus,micb-differential-cfg")) 1184 pdata->micb_diff_cfg = true; 1185 1186 if (of_property_read_u32(i2c_client->dev.of_node, 1187 "cirrus,micbias-lvl", &val32) >= 0) 1188 pdata->micbias_lvl = val32; 1189 1190 if (of_property_read_u32(i2c_client->dev.of_node, 1191 "cirrus,chgfreq-divisor", &val32) >= 0) 1192 pdata->chgfreq = val32; 1193 1194 pdata->reset_gpio = 1195 of_get_named_gpio(i2c_client->dev.of_node, 1196 "cirrus,reset-gpio", 0); 1197 } 1198 cs42l52->pdata = *pdata; 1199 } 1200 1201 if (cs42l52->pdata.reset_gpio) { 1202 ret = devm_gpio_request_one(&i2c_client->dev, 1203 cs42l52->pdata.reset_gpio, 1204 GPIOF_OUT_INIT_HIGH, 1205 "CS42L52 /RST"); 1206 if (ret < 0) { 1207 dev_err(&i2c_client->dev, "Failed to request /RST %d: %d\n", 1208 cs42l52->pdata.reset_gpio, ret); 1209 return ret; 1210 } 1211 gpio_set_value_cansleep(cs42l52->pdata.reset_gpio, 0); 1212 gpio_set_value_cansleep(cs42l52->pdata.reset_gpio, 1); 1213 } 1214 1215 i2c_set_clientdata(i2c_client, cs42l52); 1216 1217 ret = regmap_register_patch(cs42l52->regmap, cs42l52_threshold_patch, 1218 ARRAY_SIZE(cs42l52_threshold_patch)); 1219 if (ret != 0) 1220 dev_warn(cs42l52->dev, "Failed to apply regmap patch: %d\n", 1221 ret); 1222 1223 ret = regmap_read(cs42l52->regmap, CS42L52_CHIP, ®); 1224 devid = reg & CS42L52_CHIP_ID_MASK; 1225 if (devid != CS42L52_CHIP_ID) { 1226 ret = -ENODEV; 1227 dev_err(&i2c_client->dev, 1228 "CS42L52 Device ID (%X). Expected %X\n", 1229 devid, CS42L52_CHIP_ID); 1230 return ret; 1231 } 1232 1233 dev_info(&i2c_client->dev, "Cirrus Logic CS42L52, Revision: %02X\n", 1234 reg & CS42L52_CHIP_REV_MASK); 1235 1236 /* Set Platform Data */ 1237 if (cs42l52->pdata.mica_diff_cfg) 1238 regmap_update_bits(cs42l52->regmap, CS42L52_MICA_CTL, 1239 CS42L52_MIC_CTL_TYPE_MASK, 1240 cs42l52->pdata.mica_diff_cfg << 1241 CS42L52_MIC_CTL_TYPE_SHIFT); 1242 1243 if (cs42l52->pdata.micb_diff_cfg) 1244 regmap_update_bits(cs42l52->regmap, CS42L52_MICB_CTL, 1245 CS42L52_MIC_CTL_TYPE_MASK, 1246 cs42l52->pdata.micb_diff_cfg << 1247 CS42L52_MIC_CTL_TYPE_SHIFT); 1248 1249 if (cs42l52->pdata.chgfreq) 1250 regmap_update_bits(cs42l52->regmap, CS42L52_CHARGE_PUMP, 1251 CS42L52_CHARGE_PUMP_MASK, 1252 cs42l52->pdata.chgfreq << 1253 CS42L52_CHARGE_PUMP_SHIFT); 1254 1255 if (cs42l52->pdata.micbias_lvl) 1256 regmap_update_bits(cs42l52->regmap, CS42L52_IFACE_CTL2, 1257 CS42L52_IFACE_CTL2_BIAS_LVL, 1258 cs42l52->pdata.micbias_lvl); 1259 1260 ret = snd_soc_register_codec(&i2c_client->dev, 1261 &soc_codec_dev_cs42l52, &cs42l52_dai, 1); 1262 if (ret < 0) 1263 return ret; 1264 return 0; 1265 } 1266 1267 static int cs42l52_i2c_remove(struct i2c_client *client) 1268 { 1269 snd_soc_unregister_codec(&client->dev); 1270 return 0; 1271 } 1272 1273 static const struct of_device_id cs42l52_of_match[] = { 1274 { .compatible = "cirrus,cs42l52", }, 1275 {}, 1276 }; 1277 MODULE_DEVICE_TABLE(of, cs42l52_of_match); 1278 1279 1280 static const struct i2c_device_id cs42l52_id[] = { 1281 { "cs42l52", 0 }, 1282 { } 1283 }; 1284 MODULE_DEVICE_TABLE(i2c, cs42l52_id); 1285 1286 static struct i2c_driver cs42l52_i2c_driver = { 1287 .driver = { 1288 .name = "cs42l52", 1289 .owner = THIS_MODULE, 1290 .of_match_table = cs42l52_of_match, 1291 }, 1292 .id_table = cs42l52_id, 1293 .probe = cs42l52_i2c_probe, 1294 .remove = cs42l52_i2c_remove, 1295 }; 1296 1297 module_i2c_driver(cs42l52_i2c_driver); 1298 1299 MODULE_DESCRIPTION("ASoC CS42L52 driver"); 1300 MODULE_AUTHOR("Georgi Vlaev, Nucleus Systems Ltd, <joe@nucleusys.com>"); 1301 MODULE_AUTHOR("Brian Austin, Cirrus Logic Inc, <brian.austin@cirrus.com>"); 1302 MODULE_LICENSE("GPL"); 1303