1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * cs42l52.c -- CS42L52 ALSA SoC audio driver 4 * 5 * Copyright 2012 CirrusLogic, Inc. 6 * 7 * Author: Georgi Vlaev <joe@nucleusys.com> 8 * Author: Brian Austin <brian.austin@cirrus.com> 9 */ 10 11 #include <linux/module.h> 12 #include <linux/moduleparam.h> 13 #include <linux/kernel.h> 14 #include <linux/init.h> 15 #include <linux/delay.h> 16 #include <linux/of_gpio.h> 17 #include <linux/pm.h> 18 #include <linux/i2c.h> 19 #include <linux/input.h> 20 #include <linux/regmap.h> 21 #include <linux/slab.h> 22 #include <linux/workqueue.h> 23 #include <linux/platform_device.h> 24 #include <sound/core.h> 25 #include <sound/pcm.h> 26 #include <sound/pcm_params.h> 27 #include <sound/soc.h> 28 #include <sound/soc-dapm.h> 29 #include <sound/initval.h> 30 #include <sound/tlv.h> 31 #include <sound/cs42l52.h> 32 #include "cs42l52.h" 33 34 struct sp_config { 35 u8 spc, format, spfs; 36 u32 srate; 37 }; 38 39 struct cs42l52_private { 40 struct regmap *regmap; 41 struct snd_soc_component *component; 42 struct device *dev; 43 struct sp_config config; 44 struct cs42l52_platform_data pdata; 45 u32 sysclk; 46 u8 mclksel; 47 u32 mclk; 48 u8 flags; 49 struct input_dev *beep; 50 struct work_struct beep_work; 51 int beep_rate; 52 }; 53 54 static const struct reg_default cs42l52_reg_defaults[] = { 55 { CS42L52_PWRCTL1, 0x9F }, /* r02 PWRCTL 1 */ 56 { CS42L52_PWRCTL2, 0x07 }, /* r03 PWRCTL 2 */ 57 { CS42L52_PWRCTL3, 0xFF }, /* r04 PWRCTL 3 */ 58 { CS42L52_CLK_CTL, 0xA0 }, /* r05 Clocking Ctl */ 59 { CS42L52_IFACE_CTL1, 0x00 }, /* r06 Interface Ctl 1 */ 60 { CS42L52_ADC_PGA_A, 0x80 }, /* r08 Input A Select */ 61 { CS42L52_ADC_PGA_B, 0x80 }, /* r09 Input B Select */ 62 { CS42L52_ANALOG_HPF_CTL, 0xA5 }, /* r0A Analog HPF Ctl */ 63 { CS42L52_ADC_HPF_FREQ, 0x00 }, /* r0B ADC HPF Corner Freq */ 64 { CS42L52_ADC_MISC_CTL, 0x00 }, /* r0C Misc. ADC Ctl */ 65 { CS42L52_PB_CTL1, 0x60 }, /* r0D Playback Ctl 1 */ 66 { CS42L52_MISC_CTL, 0x02 }, /* r0E Misc. Ctl */ 67 { CS42L52_PB_CTL2, 0x00 }, /* r0F Playback Ctl 2 */ 68 { CS42L52_MICA_CTL, 0x00 }, /* r10 MICA Amp Ctl */ 69 { CS42L52_MICB_CTL, 0x00 }, /* r11 MICB Amp Ctl */ 70 { CS42L52_PGAA_CTL, 0x00 }, /* r12 PGAA Vol, Misc. */ 71 { CS42L52_PGAB_CTL, 0x00 }, /* r13 PGAB Vol, Misc. */ 72 { CS42L52_PASSTHRUA_VOL, 0x00 }, /* r14 Bypass A Vol */ 73 { CS42L52_PASSTHRUB_VOL, 0x00 }, /* r15 Bypass B Vol */ 74 { CS42L52_ADCA_VOL, 0x00 }, /* r16 ADCA Volume */ 75 { CS42L52_ADCB_VOL, 0x00 }, /* r17 ADCB Volume */ 76 { CS42L52_ADCA_MIXER_VOL, 0x80 }, /* r18 ADCA Mixer Volume */ 77 { CS42L52_ADCB_MIXER_VOL, 0x80 }, /* r19 ADCB Mixer Volume */ 78 { CS42L52_PCMA_MIXER_VOL, 0x00 }, /* r1A PCMA Mixer Volume */ 79 { CS42L52_PCMB_MIXER_VOL, 0x00 }, /* r1B PCMB Mixer Volume */ 80 { CS42L52_BEEP_FREQ, 0x00 }, /* r1C Beep Freq on Time */ 81 { CS42L52_BEEP_VOL, 0x00 }, /* r1D Beep Volume off Time */ 82 { CS42L52_BEEP_TONE_CTL, 0x00 }, /* r1E Beep Tone Cfg. */ 83 { CS42L52_TONE_CTL, 0x00 }, /* r1F Tone Ctl */ 84 { CS42L52_MASTERA_VOL, 0x00 }, /* r20 Master A Volume */ 85 { CS42L52_MASTERB_VOL, 0x00 }, /* r21 Master B Volume */ 86 { CS42L52_HPA_VOL, 0x00 }, /* r22 Headphone A Volume */ 87 { CS42L52_HPB_VOL, 0x00 }, /* r23 Headphone B Volume */ 88 { CS42L52_SPKA_VOL, 0x00 }, /* r24 Speaker A Volume */ 89 { CS42L52_SPKB_VOL, 0x00 }, /* r25 Speaker B Volume */ 90 { CS42L52_ADC_PCM_MIXER, 0x00 }, /* r26 Channel Mixer and Swap */ 91 { CS42L52_LIMITER_CTL1, 0x00 }, /* r27 Limit Ctl 1 Thresholds */ 92 { CS42L52_LIMITER_CTL2, 0x7F }, /* r28 Limit Ctl 2 Release Rate */ 93 { CS42L52_LIMITER_AT_RATE, 0xC0 }, /* r29 Limiter Attack Rate */ 94 { CS42L52_ALC_CTL, 0x00 }, /* r2A ALC Ctl 1 Attack Rate */ 95 { CS42L52_ALC_RATE, 0x3F }, /* r2B ALC Release Rate */ 96 { CS42L52_ALC_THRESHOLD, 0x3f }, /* r2C ALC Thresholds */ 97 { CS42L52_NOISE_GATE_CTL, 0x00 }, /* r2D Noise Gate Ctl */ 98 { CS42L52_CLK_STATUS, 0x00 }, /* r2E Overflow and Clock Status */ 99 { CS42L52_BATT_COMPEN, 0x00 }, /* r2F battery Compensation */ 100 { CS42L52_BATT_LEVEL, 0x00 }, /* r30 VP Battery Level */ 101 { CS42L52_SPK_STATUS, 0x00 }, /* r31 Speaker Status */ 102 { CS42L52_TEM_CTL, 0x3B }, /* r32 Temp Ctl */ 103 { CS42L52_THE_FOLDBACK, 0x00 }, /* r33 Foldback */ 104 }; 105 cs42l52_readable_register(struct device * dev,unsigned int reg)106 static bool cs42l52_readable_register(struct device *dev, unsigned int reg) 107 { 108 switch (reg) { 109 case CS42L52_CHIP ... CS42L52_CHARGE_PUMP: 110 return true; 111 default: 112 return false; 113 } 114 } 115 cs42l52_volatile_register(struct device * dev,unsigned int reg)116 static bool cs42l52_volatile_register(struct device *dev, unsigned int reg) 117 { 118 switch (reg) { 119 case CS42L52_IFACE_CTL2: 120 case CS42L52_CLK_STATUS: 121 case CS42L52_BATT_LEVEL: 122 case CS42L52_SPK_STATUS: 123 case CS42L52_CHARGE_PUMP: 124 return true; 125 default: 126 return false; 127 } 128 } 129 130 static DECLARE_TLV_DB_SCALE(hl_tlv, -10200, 50, 0); 131 132 static DECLARE_TLV_DB_SCALE(hpd_tlv, -9600, 50, 1); 133 134 static DECLARE_TLV_DB_SCALE(ipd_tlv, -9600, 100, 0); 135 136 static DECLARE_TLV_DB_SCALE(mic_tlv, 1600, 100, 0); 137 138 static DECLARE_TLV_DB_SCALE(pga_tlv, -600, 50, 0); 139 140 static DECLARE_TLV_DB_SCALE(pass_tlv, -6000, 50, 0); 141 142 static DECLARE_TLV_DB_SCALE(mix_tlv, -5150, 50, 0); 143 144 static DECLARE_TLV_DB_SCALE(beep_tlv, -56, 200, 0); 145 146 static const DECLARE_TLV_DB_RANGE(limiter_tlv, 147 0, 2, TLV_DB_SCALE_ITEM(-3000, 600, 0), 148 3, 7, TLV_DB_SCALE_ITEM(-1200, 300, 0) 149 ); 150 151 static const char * const cs42l52_adca_text[] = { 152 "Input1A", "Input2A", "Input3A", "Input4A", "PGA Input Left"}; 153 154 static const char * const cs42l52_adcb_text[] = { 155 "Input1B", "Input2B", "Input3B", "Input4B", "PGA Input Right"}; 156 157 static SOC_ENUM_SINGLE_DECL(adca_enum, 158 CS42L52_ADC_PGA_A, 5, cs42l52_adca_text); 159 160 static SOC_ENUM_SINGLE_DECL(adcb_enum, 161 CS42L52_ADC_PGA_B, 5, cs42l52_adcb_text); 162 163 static const struct snd_kcontrol_new adca_mux = 164 SOC_DAPM_ENUM("Left ADC Input Capture Mux", adca_enum); 165 166 static const struct snd_kcontrol_new adcb_mux = 167 SOC_DAPM_ENUM("Right ADC Input Capture Mux", adcb_enum); 168 169 static const char * const mic_bias_level_text[] = { 170 "0.5 +VA", "0.6 +VA", "0.7 +VA", 171 "0.8 +VA", "0.83 +VA", "0.91 +VA" 172 }; 173 174 static SOC_ENUM_SINGLE_DECL(mic_bias_level_enum, 175 CS42L52_IFACE_CTL2, 0, mic_bias_level_text); 176 177 static const char * const cs42l52_mic_text[] = { "MIC1", "MIC2" }; 178 179 static SOC_ENUM_SINGLE_DECL(mica_enum, 180 CS42L52_MICA_CTL, 5, cs42l52_mic_text); 181 182 static SOC_ENUM_SINGLE_DECL(micb_enum, 183 CS42L52_MICB_CTL, 5, cs42l52_mic_text); 184 185 static const char * const digital_output_mux_text[] = {"ADC", "DSP"}; 186 187 static SOC_ENUM_SINGLE_DECL(digital_output_mux_enum, 188 CS42L52_ADC_MISC_CTL, 6, 189 digital_output_mux_text); 190 191 static const struct snd_kcontrol_new digital_output_mux = 192 SOC_DAPM_ENUM("Digital Output Mux", digital_output_mux_enum); 193 194 static const char * const hp_gain_num_text[] = { 195 "0.3959", "0.4571", "0.5111", "0.6047", 196 "0.7099", "0.8399", "1.000", "1.1430" 197 }; 198 199 static SOC_ENUM_SINGLE_DECL(hp_gain_enum, 200 CS42L52_PB_CTL1, 5, 201 hp_gain_num_text); 202 203 static const char * const beep_pitch_text[] = { 204 "C4", "C5", "D5", "E5", "F5", "G5", "A5", "B5", 205 "C6", "D6", "E6", "F6", "G6", "A6", "B6", "C7" 206 }; 207 208 static SOC_ENUM_SINGLE_DECL(beep_pitch_enum, 209 CS42L52_BEEP_FREQ, 4, 210 beep_pitch_text); 211 212 static const char * const beep_ontime_text[] = { 213 "86 ms", "430 ms", "780 ms", "1.20 s", "1.50 s", 214 "1.80 s", "2.20 s", "2.50 s", "2.80 s", "3.20 s", 215 "3.50 s", "3.80 s", "4.20 s", "4.50 s", "4.80 s", "5.20 s" 216 }; 217 218 static SOC_ENUM_SINGLE_DECL(beep_ontime_enum, 219 CS42L52_BEEP_FREQ, 0, 220 beep_ontime_text); 221 222 static const char * const beep_offtime_text[] = { 223 "1.23 s", "2.58 s", "3.90 s", "5.20 s", 224 "6.60 s", "8.05 s", "9.35 s", "10.80 s" 225 }; 226 227 static SOC_ENUM_SINGLE_DECL(beep_offtime_enum, 228 CS42L52_BEEP_VOL, 5, 229 beep_offtime_text); 230 231 static const char * const beep_config_text[] = { 232 "Off", "Single", "Multiple", "Continuous" 233 }; 234 235 static SOC_ENUM_SINGLE_DECL(beep_config_enum, 236 CS42L52_BEEP_TONE_CTL, 6, 237 beep_config_text); 238 239 static const char * const beep_bass_text[] = { 240 "50 Hz", "100 Hz", "200 Hz", "250 Hz" 241 }; 242 243 static SOC_ENUM_SINGLE_DECL(beep_bass_enum, 244 CS42L52_BEEP_TONE_CTL, 1, 245 beep_bass_text); 246 247 static const char * const beep_treble_text[] = { 248 "5 kHz", "7 kHz", "10 kHz", " 15 kHz" 249 }; 250 251 static SOC_ENUM_SINGLE_DECL(beep_treble_enum, 252 CS42L52_BEEP_TONE_CTL, 3, 253 beep_treble_text); 254 255 static const char * const ng_threshold_text[] = { 256 "-34dB", "-37dB", "-40dB", "-43dB", 257 "-46dB", "-52dB", "-58dB", "-64dB" 258 }; 259 260 static SOC_ENUM_SINGLE_DECL(ng_threshold_enum, 261 CS42L52_NOISE_GATE_CTL, 2, 262 ng_threshold_text); 263 264 static const char * const cs42l52_ng_delay_text[] = { 265 "50ms", "100ms", "150ms", "200ms"}; 266 267 static SOC_ENUM_SINGLE_DECL(ng_delay_enum, 268 CS42L52_NOISE_GATE_CTL, 0, 269 cs42l52_ng_delay_text); 270 271 static const char * const cs42l52_ng_type_text[] = { 272 "Apply Specific", "Apply All" 273 }; 274 275 static SOC_ENUM_SINGLE_DECL(ng_type_enum, 276 CS42L52_NOISE_GATE_CTL, 6, 277 cs42l52_ng_type_text); 278 279 static const char * const left_swap_text[] = { 280 "Left", "LR 2", "Right"}; 281 282 static const char * const right_swap_text[] = { 283 "Right", "LR 2", "Left"}; 284 285 static const unsigned int swap_values[] = { 0, 1, 3 }; 286 287 static const struct soc_enum adca_swap_enum = 288 SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 2, 3, 289 ARRAY_SIZE(left_swap_text), 290 left_swap_text, 291 swap_values); 292 293 static const struct snd_kcontrol_new adca_mixer = 294 SOC_DAPM_ENUM("Route", adca_swap_enum); 295 296 static const struct soc_enum pcma_swap_enum = 297 SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 6, 3, 298 ARRAY_SIZE(left_swap_text), 299 left_swap_text, 300 swap_values); 301 302 static const struct snd_kcontrol_new pcma_mixer = 303 SOC_DAPM_ENUM("Route", pcma_swap_enum); 304 305 static const struct soc_enum adcb_swap_enum = 306 SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 0, 3, 307 ARRAY_SIZE(right_swap_text), 308 right_swap_text, 309 swap_values); 310 311 static const struct snd_kcontrol_new adcb_mixer = 312 SOC_DAPM_ENUM("Route", adcb_swap_enum); 313 314 static const struct soc_enum pcmb_swap_enum = 315 SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 4, 3, 316 ARRAY_SIZE(right_swap_text), 317 right_swap_text, 318 swap_values); 319 320 static const struct snd_kcontrol_new pcmb_mixer = 321 SOC_DAPM_ENUM("Route", pcmb_swap_enum); 322 323 324 static const struct snd_kcontrol_new passthrul_ctl = 325 SOC_DAPM_SINGLE("Switch", CS42L52_MISC_CTL, 6, 1, 0); 326 327 static const struct snd_kcontrol_new passthrur_ctl = 328 SOC_DAPM_SINGLE("Switch", CS42L52_MISC_CTL, 7, 1, 0); 329 330 static const struct snd_kcontrol_new spkl_ctl = 331 SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 0, 1, 1); 332 333 static const struct snd_kcontrol_new spkr_ctl = 334 SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 2, 1, 1); 335 336 static const struct snd_kcontrol_new hpl_ctl = 337 SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 4, 1, 1); 338 339 static const struct snd_kcontrol_new hpr_ctl = 340 SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 6, 1, 1); 341 342 static const struct snd_kcontrol_new cs42l52_snd_controls[] = { 343 344 SOC_DOUBLE_R_SX_TLV("Master Volume", CS42L52_MASTERA_VOL, 345 CS42L52_MASTERB_VOL, 0, 0x34, 0xE4, hl_tlv), 346 347 SOC_DOUBLE_R_SX_TLV("Headphone Volume", CS42L52_HPA_VOL, 348 CS42L52_HPB_VOL, 0, 0x34, 0xC0, hpd_tlv), 349 350 SOC_ENUM("Headphone Analog Gain", hp_gain_enum), 351 352 SOC_DOUBLE_R_SX_TLV("Speaker Volume", CS42L52_SPKA_VOL, 353 CS42L52_SPKB_VOL, 0, 0x40, 0xC0, hl_tlv), 354 355 SOC_DOUBLE_R_SX_TLV("Bypass Volume", CS42L52_PASSTHRUA_VOL, 356 CS42L52_PASSTHRUB_VOL, 0, 0x88, 0x90, pass_tlv), 357 358 SOC_DOUBLE("Bypass Mute", CS42L52_MISC_CTL, 4, 5, 1, 0), 359 360 SOC_DOUBLE_R_TLV("MIC Gain Volume", CS42L52_MICA_CTL, 361 CS42L52_MICB_CTL, 0, 0x10, 0, mic_tlv), 362 363 SOC_ENUM("MIC Bias Level", mic_bias_level_enum), 364 365 SOC_DOUBLE_R_SX_TLV("ADC Volume", CS42L52_ADCA_VOL, 366 CS42L52_ADCB_VOL, 0, 0xA0, 0x78, ipd_tlv), 367 SOC_DOUBLE_R_SX_TLV("ADC Mixer Volume", 368 CS42L52_ADCA_MIXER_VOL, CS42L52_ADCB_MIXER_VOL, 369 0, 0x19, 0x7F, mix_tlv), 370 371 SOC_DOUBLE("ADC Switch", CS42L52_ADC_MISC_CTL, 0, 1, 1, 0), 372 373 SOC_DOUBLE_R("ADC Mixer Switch", CS42L52_ADCA_MIXER_VOL, 374 CS42L52_ADCB_MIXER_VOL, 7, 1, 1), 375 376 SOC_DOUBLE_R_SX_TLV("PGA Volume", CS42L52_PGAA_CTL, 377 CS42L52_PGAB_CTL, 0, 0x28, 0x24, pga_tlv), 378 379 SOC_DOUBLE_R_SX_TLV("PCM Mixer Volume", 380 CS42L52_PCMA_MIXER_VOL, CS42L52_PCMB_MIXER_VOL, 381 0, 0x19, 0x7f, mix_tlv), 382 SOC_DOUBLE_R("PCM Mixer Switch", 383 CS42L52_PCMA_MIXER_VOL, CS42L52_PCMB_MIXER_VOL, 7, 1, 1), 384 385 SOC_ENUM("Beep Config", beep_config_enum), 386 SOC_ENUM("Beep Pitch", beep_pitch_enum), 387 SOC_ENUM("Beep on Time", beep_ontime_enum), 388 SOC_ENUM("Beep off Time", beep_offtime_enum), 389 SOC_SINGLE_SX_TLV("Beep Volume", CS42L52_BEEP_VOL, 390 0, 0x07, 0x1f, beep_tlv), 391 SOC_SINGLE("Beep Mixer Switch", CS42L52_BEEP_TONE_CTL, 5, 1, 1), 392 SOC_ENUM("Beep Treble Corner Freq", beep_treble_enum), 393 SOC_ENUM("Beep Bass Corner Freq", beep_bass_enum), 394 395 SOC_SINGLE("Tone Control Switch", CS42L52_BEEP_TONE_CTL, 0, 1, 1), 396 SOC_SINGLE_TLV("Treble Gain Volume", 397 CS42L52_TONE_CTL, 4, 15, 1, hl_tlv), 398 SOC_SINGLE_TLV("Bass Gain Volume", 399 CS42L52_TONE_CTL, 0, 15, 1, hl_tlv), 400 401 /* Limiter */ 402 SOC_SINGLE_TLV("Limiter Max Threshold Volume", 403 CS42L52_LIMITER_CTL1, 5, 7, 0, limiter_tlv), 404 SOC_SINGLE_TLV("Limiter Cushion Threshold Volume", 405 CS42L52_LIMITER_CTL1, 2, 7, 0, limiter_tlv), 406 SOC_SINGLE_TLV("Limiter Release Rate Volume", 407 CS42L52_LIMITER_CTL2, 0, 63, 0, limiter_tlv), 408 SOC_SINGLE_TLV("Limiter Attack Rate Volume", 409 CS42L52_LIMITER_AT_RATE, 0, 63, 0, limiter_tlv), 410 411 SOC_SINGLE("Limiter SR Switch", CS42L52_LIMITER_CTL1, 1, 1, 0), 412 SOC_SINGLE("Limiter ZC Switch", CS42L52_LIMITER_CTL1, 0, 1, 0), 413 SOC_SINGLE("Limiter Switch", CS42L52_LIMITER_CTL2, 7, 1, 0), 414 415 /* ALC */ 416 SOC_SINGLE_TLV("ALC Attack Rate Volume", CS42L52_ALC_CTL, 417 0, 63, 0, limiter_tlv), 418 SOC_SINGLE_TLV("ALC Release Rate Volume", CS42L52_ALC_RATE, 419 0, 63, 0, limiter_tlv), 420 SOC_SINGLE_TLV("ALC Max Threshold Volume", CS42L52_ALC_THRESHOLD, 421 5, 7, 0, limiter_tlv), 422 SOC_SINGLE_TLV("ALC Min Threshold Volume", CS42L52_ALC_THRESHOLD, 423 2, 7, 0, limiter_tlv), 424 425 SOC_DOUBLE_R("ALC SR Capture Switch", CS42L52_PGAA_CTL, 426 CS42L52_PGAB_CTL, 7, 1, 1), 427 SOC_DOUBLE_R("ALC ZC Capture Switch", CS42L52_PGAA_CTL, 428 CS42L52_PGAB_CTL, 6, 1, 1), 429 SOC_DOUBLE("ALC Capture Switch", CS42L52_ALC_CTL, 6, 7, 1, 0), 430 431 /* Noise gate */ 432 SOC_ENUM("NG Type Switch", ng_type_enum), 433 SOC_SINGLE("NG Enable Switch", CS42L52_NOISE_GATE_CTL, 6, 1, 0), 434 SOC_SINGLE("NG Boost Switch", CS42L52_NOISE_GATE_CTL, 5, 1, 1), 435 SOC_ENUM("NG Threshold", ng_threshold_enum), 436 SOC_ENUM("NG Delay", ng_delay_enum), 437 438 SOC_DOUBLE("HPF Switch", CS42L52_ANALOG_HPF_CTL, 5, 7, 1, 0), 439 440 SOC_DOUBLE("Analog SR Switch", CS42L52_ANALOG_HPF_CTL, 1, 3, 1, 1), 441 SOC_DOUBLE("Analog ZC Switch", CS42L52_ANALOG_HPF_CTL, 0, 2, 1, 1), 442 SOC_SINGLE("Digital SR Switch", CS42L52_MISC_CTL, 1, 1, 0), 443 SOC_SINGLE("Digital ZC Switch", CS42L52_MISC_CTL, 0, 1, 0), 444 SOC_SINGLE("Deemphasis Switch", CS42L52_MISC_CTL, 2, 1, 0), 445 446 SOC_SINGLE("Batt Compensation Switch", CS42L52_BATT_COMPEN, 7, 1, 0), 447 SOC_SINGLE("Batt VP Monitor Switch", CS42L52_BATT_COMPEN, 6, 1, 0), 448 SOC_SINGLE("Batt VP ref", CS42L52_BATT_COMPEN, 0, 0x0f, 0), 449 450 SOC_SINGLE("PGA AIN1L Switch", CS42L52_ADC_PGA_A, 0, 1, 0), 451 SOC_SINGLE("PGA AIN1R Switch", CS42L52_ADC_PGA_B, 0, 1, 0), 452 SOC_SINGLE("PGA AIN2L Switch", CS42L52_ADC_PGA_A, 1, 1, 0), 453 SOC_SINGLE("PGA AIN2R Switch", CS42L52_ADC_PGA_B, 1, 1, 0), 454 455 SOC_SINGLE("PGA AIN3L Switch", CS42L52_ADC_PGA_A, 2, 1, 0), 456 SOC_SINGLE("PGA AIN3R Switch", CS42L52_ADC_PGA_B, 2, 1, 0), 457 458 SOC_SINGLE("PGA AIN4L Switch", CS42L52_ADC_PGA_A, 3, 1, 0), 459 SOC_SINGLE("PGA AIN4R Switch", CS42L52_ADC_PGA_B, 3, 1, 0), 460 461 SOC_SINGLE("PGA MICA Switch", CS42L52_ADC_PGA_A, 4, 1, 0), 462 SOC_SINGLE("PGA MICB Switch", CS42L52_ADC_PGA_B, 4, 1, 0), 463 464 }; 465 466 static const struct snd_kcontrol_new cs42l52_mica_controls[] = { 467 SOC_ENUM("MICA Select", mica_enum), 468 }; 469 470 static const struct snd_kcontrol_new cs42l52_micb_controls[] = { 471 SOC_ENUM("MICB Select", micb_enum), 472 }; 473 cs42l52_add_mic_controls(struct snd_soc_component * component)474 static int cs42l52_add_mic_controls(struct snd_soc_component *component) 475 { 476 struct cs42l52_private *cs42l52 = snd_soc_component_get_drvdata(component); 477 struct cs42l52_platform_data *pdata = &cs42l52->pdata; 478 479 if (!pdata->mica_diff_cfg) 480 snd_soc_add_component_controls(component, cs42l52_mica_controls, 481 ARRAY_SIZE(cs42l52_mica_controls)); 482 483 if (!pdata->micb_diff_cfg) 484 snd_soc_add_component_controls(component, cs42l52_micb_controls, 485 ARRAY_SIZE(cs42l52_micb_controls)); 486 487 return 0; 488 } 489 490 static const struct snd_soc_dapm_widget cs42l52_dapm_widgets[] = { 491 492 SND_SOC_DAPM_INPUT("AIN1L"), 493 SND_SOC_DAPM_INPUT("AIN1R"), 494 SND_SOC_DAPM_INPUT("AIN2L"), 495 SND_SOC_DAPM_INPUT("AIN2R"), 496 SND_SOC_DAPM_INPUT("AIN3L"), 497 SND_SOC_DAPM_INPUT("AIN3R"), 498 SND_SOC_DAPM_INPUT("AIN4L"), 499 SND_SOC_DAPM_INPUT("AIN4R"), 500 SND_SOC_DAPM_INPUT("MICA"), 501 SND_SOC_DAPM_INPUT("MICB"), 502 SND_SOC_DAPM_SIGGEN("Beep"), 503 504 SND_SOC_DAPM_AIF_OUT("AIFOUTL", NULL, 0, 505 SND_SOC_NOPM, 0, 0), 506 SND_SOC_DAPM_AIF_OUT("AIFOUTR", NULL, 0, 507 SND_SOC_NOPM, 0, 0), 508 509 SND_SOC_DAPM_ADC("ADC Left", NULL, CS42L52_PWRCTL1, 1, 1), 510 SND_SOC_DAPM_ADC("ADC Right", NULL, CS42L52_PWRCTL1, 2, 1), 511 SND_SOC_DAPM_PGA("PGA Left", CS42L52_PWRCTL1, 3, 1, NULL, 0), 512 SND_SOC_DAPM_PGA("PGA Right", CS42L52_PWRCTL1, 4, 1, NULL, 0), 513 514 SND_SOC_DAPM_MUX("ADC Left Mux", SND_SOC_NOPM, 0, 0, &adca_mux), 515 SND_SOC_DAPM_MUX("ADC Right Mux", SND_SOC_NOPM, 0, 0, &adcb_mux), 516 517 SND_SOC_DAPM_MUX("ADC Left Swap", SND_SOC_NOPM, 518 0, 0, &adca_mixer), 519 SND_SOC_DAPM_MUX("ADC Right Swap", SND_SOC_NOPM, 520 0, 0, &adcb_mixer), 521 522 SND_SOC_DAPM_MUX("Output Mux", SND_SOC_NOPM, 523 0, 0, &digital_output_mux), 524 525 SND_SOC_DAPM_PGA("PGA MICA", CS42L52_PWRCTL2, 1, 1, NULL, 0), 526 SND_SOC_DAPM_PGA("PGA MICB", CS42L52_PWRCTL2, 2, 1, NULL, 0), 527 528 SND_SOC_DAPM_SUPPLY("Mic Bias", CS42L52_PWRCTL2, 0, 1, NULL, 0), 529 SND_SOC_DAPM_SUPPLY("Charge Pump", CS42L52_PWRCTL1, 7, 1, NULL, 0), 530 531 SND_SOC_DAPM_AIF_IN("AIFINL", NULL, 0, 532 SND_SOC_NOPM, 0, 0), 533 SND_SOC_DAPM_AIF_IN("AIFINR", NULL, 0, 534 SND_SOC_NOPM, 0, 0), 535 536 SND_SOC_DAPM_DAC("DAC Left", NULL, SND_SOC_NOPM, 0, 0), 537 SND_SOC_DAPM_DAC("DAC Right", NULL, SND_SOC_NOPM, 0, 0), 538 539 SND_SOC_DAPM_SWITCH("Bypass Left", CS42L52_MISC_CTL, 540 6, 0, &passthrul_ctl), 541 SND_SOC_DAPM_SWITCH("Bypass Right", CS42L52_MISC_CTL, 542 7, 0, &passthrur_ctl), 543 544 SND_SOC_DAPM_MUX("PCM Left Swap", SND_SOC_NOPM, 545 0, 0, &pcma_mixer), 546 SND_SOC_DAPM_MUX("PCM Right Swap", SND_SOC_NOPM, 547 0, 0, &pcmb_mixer), 548 549 SND_SOC_DAPM_SWITCH("HP Left Amp", SND_SOC_NOPM, 0, 0, &hpl_ctl), 550 SND_SOC_DAPM_SWITCH("HP Right Amp", SND_SOC_NOPM, 0, 0, &hpr_ctl), 551 552 SND_SOC_DAPM_SWITCH("SPK Left Amp", SND_SOC_NOPM, 0, 0, &spkl_ctl), 553 SND_SOC_DAPM_SWITCH("SPK Right Amp", SND_SOC_NOPM, 0, 0, &spkr_ctl), 554 555 SND_SOC_DAPM_OUTPUT("HPOUTA"), 556 SND_SOC_DAPM_OUTPUT("HPOUTB"), 557 SND_SOC_DAPM_OUTPUT("SPKOUTA"), 558 SND_SOC_DAPM_OUTPUT("SPKOUTB"), 559 560 }; 561 562 static const struct snd_soc_dapm_route cs42l52_audio_map[] = { 563 564 {"Capture", NULL, "AIFOUTL"}, 565 {"Capture", NULL, "AIFOUTL"}, 566 567 {"AIFOUTL", NULL, "Output Mux"}, 568 {"AIFOUTR", NULL, "Output Mux"}, 569 570 {"Output Mux", "ADC", "ADC Left"}, 571 {"Output Mux", "ADC", "ADC Right"}, 572 573 {"ADC Left", NULL, "Charge Pump"}, 574 {"ADC Right", NULL, "Charge Pump"}, 575 576 {"Charge Pump", NULL, "ADC Left Mux"}, 577 {"Charge Pump", NULL, "ADC Right Mux"}, 578 579 {"ADC Left Mux", "Input1A", "AIN1L"}, 580 {"ADC Right Mux", "Input1B", "AIN1R"}, 581 {"ADC Left Mux", "Input2A", "AIN2L"}, 582 {"ADC Right Mux", "Input2B", "AIN2R"}, 583 {"ADC Left Mux", "Input3A", "AIN3L"}, 584 {"ADC Right Mux", "Input3B", "AIN3R"}, 585 {"ADC Left Mux", "Input4A", "AIN4L"}, 586 {"ADC Right Mux", "Input4B", "AIN4R"}, 587 {"ADC Left Mux", "PGA Input Left", "PGA Left"}, 588 {"ADC Right Mux", "PGA Input Right" , "PGA Right"}, 589 590 {"PGA Left", "Switch", "AIN1L"}, 591 {"PGA Right", "Switch", "AIN1R"}, 592 {"PGA Left", "Switch", "AIN2L"}, 593 {"PGA Right", "Switch", "AIN2R"}, 594 {"PGA Left", "Switch", "AIN3L"}, 595 {"PGA Right", "Switch", "AIN3R"}, 596 {"PGA Left", "Switch", "AIN4L"}, 597 {"PGA Right", "Switch", "AIN4R"}, 598 599 {"PGA Left", "Switch", "PGA MICA"}, 600 {"PGA MICA", NULL, "MICA"}, 601 602 {"PGA Right", "Switch", "PGA MICB"}, 603 {"PGA MICB", NULL, "MICB"}, 604 605 {"HPOUTA", NULL, "HP Left Amp"}, 606 {"HPOUTB", NULL, "HP Right Amp"}, 607 {"HP Left Amp", NULL, "Bypass Left"}, 608 {"HP Right Amp", NULL, "Bypass Right"}, 609 {"Bypass Left", "Switch", "PGA Left"}, 610 {"Bypass Right", "Switch", "PGA Right"}, 611 {"HP Left Amp", "Switch", "DAC Left"}, 612 {"HP Right Amp", "Switch", "DAC Right"}, 613 614 {"SPKOUTA", NULL, "SPK Left Amp"}, 615 {"SPKOUTB", NULL, "SPK Right Amp"}, 616 617 {"SPK Left Amp", NULL, "Beep"}, 618 {"SPK Right Amp", NULL, "Beep"}, 619 {"SPK Left Amp", "Switch", "Playback"}, 620 {"SPK Right Amp", "Switch", "Playback"}, 621 622 {"DAC Left", NULL, "Beep"}, 623 {"DAC Right", NULL, "Beep"}, 624 {"DAC Left", NULL, "Playback"}, 625 {"DAC Right", NULL, "Playback"}, 626 627 {"Output Mux", "DSP", "Playback"}, 628 {"Output Mux", "DSP", "Playback"}, 629 630 {"AIFINL", NULL, "Playback"}, 631 {"AIFINR", NULL, "Playback"}, 632 633 }; 634 635 struct cs42l52_clk_para { 636 u32 mclk; 637 u32 rate; 638 u8 speed; 639 u8 group; 640 u8 videoclk; 641 u8 ratio; 642 u8 mclkdiv2; 643 }; 644 645 static const struct cs42l52_clk_para clk_map_table[] = { 646 /*8k*/ 647 {12288000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 648 {18432000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 649 {12000000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 0}, 650 {24000000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 1}, 651 {27000000, 8000, CLK_QS_MODE, CLK_32K, CLK_27M_MCLK, CLK_R_125, 0}, 652 653 /*11.025k*/ 654 {11289600, 11025, CLK_QS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 655 {16934400, 11025, CLK_QS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 656 657 /*16k*/ 658 {12288000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 659 {18432000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 660 {12000000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 0}, 661 {24000000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 1}, 662 {27000000, 16000, CLK_HS_MODE, CLK_32K, CLK_27M_MCLK, CLK_R_125, 1}, 663 664 /*22.05k*/ 665 {11289600, 22050, CLK_HS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 666 {16934400, 22050, CLK_HS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 667 668 /* 32k */ 669 {12288000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 670 {18432000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0}, 671 {12000000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 0}, 672 {24000000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 1}, 673 {27000000, 32000, CLK_SS_MODE, CLK_32K, CLK_27M_MCLK, CLK_R_125, 0}, 674 675 /* 44.1k */ 676 {11289600, 44100, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 677 {16934400, 44100, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 678 679 /* 48k */ 680 {12288000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 681 {18432000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 682 {12000000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 0}, 683 {24000000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 1}, 684 {27000000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_27M_MCLK, CLK_R_125, 1}, 685 686 /* 88.2k */ 687 {11289600, 88200, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 688 {16934400, 88200, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 689 690 /* 96k */ 691 {12288000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 692 {18432000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0}, 693 {12000000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 0}, 694 {24000000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 1}, 695 }; 696 cs42l52_get_clk(int mclk,int rate)697 static int cs42l52_get_clk(int mclk, int rate) 698 { 699 int i, ret = -EINVAL; 700 u_int mclk1, mclk2 = 0; 701 702 for (i = 0; i < ARRAY_SIZE(clk_map_table); i++) { 703 if (clk_map_table[i].rate == rate) { 704 mclk1 = clk_map_table[i].mclk; 705 if (abs(mclk - mclk1) < abs(mclk - mclk2)) { 706 mclk2 = mclk1; 707 ret = i; 708 } 709 } 710 } 711 return ret; 712 } 713 cs42l52_set_sysclk(struct snd_soc_dai * codec_dai,int clk_id,unsigned int freq,int dir)714 static int cs42l52_set_sysclk(struct snd_soc_dai *codec_dai, 715 int clk_id, unsigned int freq, int dir) 716 { 717 struct snd_soc_component *component = codec_dai->component; 718 struct cs42l52_private *cs42l52 = snd_soc_component_get_drvdata(component); 719 720 if ((freq >= CS42L52_MIN_CLK) && (freq <= CS42L52_MAX_CLK)) { 721 cs42l52->sysclk = freq; 722 } else { 723 dev_err(component->dev, "Invalid freq parameter\n"); 724 return -EINVAL; 725 } 726 return 0; 727 } 728 cs42l52_set_fmt(struct snd_soc_dai * codec_dai,unsigned int fmt)729 static int cs42l52_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) 730 { 731 struct snd_soc_component *component = codec_dai->component; 732 struct cs42l52_private *cs42l52 = snd_soc_component_get_drvdata(component); 733 u8 iface = 0; 734 735 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 736 case SND_SOC_DAIFMT_CBM_CFM: 737 iface = CS42L52_IFACE_CTL1_MASTER; 738 break; 739 case SND_SOC_DAIFMT_CBS_CFS: 740 iface = CS42L52_IFACE_CTL1_SLAVE; 741 break; 742 default: 743 return -EINVAL; 744 } 745 746 /* interface format */ 747 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 748 case SND_SOC_DAIFMT_I2S: 749 iface |= CS42L52_IFACE_CTL1_ADC_FMT_I2S | 750 CS42L52_IFACE_CTL1_DAC_FMT_I2S; 751 break; 752 case SND_SOC_DAIFMT_RIGHT_J: 753 iface |= CS42L52_IFACE_CTL1_DAC_FMT_RIGHT_J; 754 break; 755 case SND_SOC_DAIFMT_LEFT_J: 756 iface |= CS42L52_IFACE_CTL1_ADC_FMT_LEFT_J | 757 CS42L52_IFACE_CTL1_DAC_FMT_LEFT_J; 758 break; 759 case SND_SOC_DAIFMT_DSP_A: 760 iface |= CS42L52_IFACE_CTL1_DSP_MODE_EN; 761 break; 762 case SND_SOC_DAIFMT_DSP_B: 763 break; 764 default: 765 return -EINVAL; 766 } 767 768 /* clock inversion */ 769 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 770 case SND_SOC_DAIFMT_NB_NF: 771 break; 772 case SND_SOC_DAIFMT_IB_IF: 773 iface |= CS42L52_IFACE_CTL1_INV_SCLK; 774 break; 775 case SND_SOC_DAIFMT_IB_NF: 776 iface |= CS42L52_IFACE_CTL1_INV_SCLK; 777 break; 778 case SND_SOC_DAIFMT_NB_IF: 779 break; 780 default: 781 return -EINVAL; 782 } 783 cs42l52->config.format = iface; 784 snd_soc_component_write(component, CS42L52_IFACE_CTL1, cs42l52->config.format); 785 786 return 0; 787 } 788 cs42l52_mute(struct snd_soc_dai * dai,int mute,int direction)789 static int cs42l52_mute(struct snd_soc_dai *dai, int mute, int direction) 790 { 791 struct snd_soc_component *component = dai->component; 792 793 if (mute) 794 snd_soc_component_update_bits(component, CS42L52_PB_CTL1, 795 CS42L52_PB_CTL1_MUTE_MASK, 796 CS42L52_PB_CTL1_MUTE); 797 else 798 snd_soc_component_update_bits(component, CS42L52_PB_CTL1, 799 CS42L52_PB_CTL1_MUTE_MASK, 800 CS42L52_PB_CTL1_UNMUTE); 801 802 return 0; 803 } 804 cs42l52_pcm_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)805 static int cs42l52_pcm_hw_params(struct snd_pcm_substream *substream, 806 struct snd_pcm_hw_params *params, 807 struct snd_soc_dai *dai) 808 { 809 struct snd_soc_component *component = dai->component; 810 struct cs42l52_private *cs42l52 = snd_soc_component_get_drvdata(component); 811 u32 clk = 0; 812 int index; 813 814 index = cs42l52_get_clk(cs42l52->sysclk, params_rate(params)); 815 if (index >= 0) { 816 cs42l52->sysclk = clk_map_table[index].mclk; 817 818 clk |= (clk_map_table[index].speed << CLK_SPEED_SHIFT) | 819 (clk_map_table[index].group << CLK_32K_SR_SHIFT) | 820 (clk_map_table[index].videoclk << CLK_27M_MCLK_SHIFT) | 821 (clk_map_table[index].ratio << CLK_RATIO_SHIFT) | 822 clk_map_table[index].mclkdiv2; 823 824 snd_soc_component_write(component, CS42L52_CLK_CTL, clk); 825 } else { 826 dev_err(component->dev, "can't get correct mclk\n"); 827 return -EINVAL; 828 } 829 830 return 0; 831 } 832 cs42l52_set_bias_level(struct snd_soc_component * component,enum snd_soc_bias_level level)833 static int cs42l52_set_bias_level(struct snd_soc_component *component, 834 enum snd_soc_bias_level level) 835 { 836 struct cs42l52_private *cs42l52 = snd_soc_component_get_drvdata(component); 837 838 switch (level) { 839 case SND_SOC_BIAS_ON: 840 break; 841 case SND_SOC_BIAS_PREPARE: 842 snd_soc_component_update_bits(component, CS42L52_PWRCTL1, 843 CS42L52_PWRCTL1_PDN_CODEC, 0); 844 break; 845 case SND_SOC_BIAS_STANDBY: 846 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { 847 regcache_cache_only(cs42l52->regmap, false); 848 regcache_sync(cs42l52->regmap); 849 } 850 snd_soc_component_write(component, CS42L52_PWRCTL1, CS42L52_PWRCTL1_PDN_ALL); 851 break; 852 case SND_SOC_BIAS_OFF: 853 snd_soc_component_write(component, CS42L52_PWRCTL1, CS42L52_PWRCTL1_PDN_ALL); 854 regcache_cache_only(cs42l52->regmap, true); 855 break; 856 } 857 858 return 0; 859 } 860 861 #define CS42L52_RATES (SNDRV_PCM_RATE_8000_96000) 862 863 #define CS42L52_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE | \ 864 SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_U18_3LE | \ 865 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_U20_3LE | \ 866 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_U24_LE) 867 868 static const struct snd_soc_dai_ops cs42l52_ops = { 869 .hw_params = cs42l52_pcm_hw_params, 870 .mute_stream = cs42l52_mute, 871 .set_fmt = cs42l52_set_fmt, 872 .set_sysclk = cs42l52_set_sysclk, 873 .no_capture_mute = 1, 874 }; 875 876 static struct snd_soc_dai_driver cs42l52_dai = { 877 .name = "cs42l52", 878 .playback = { 879 .stream_name = "Playback", 880 .channels_min = 1, 881 .channels_max = 2, 882 .rates = CS42L52_RATES, 883 .formats = CS42L52_FORMATS, 884 }, 885 .capture = { 886 .stream_name = "Capture", 887 .channels_min = 1, 888 .channels_max = 2, 889 .rates = CS42L52_RATES, 890 .formats = CS42L52_FORMATS, 891 }, 892 .ops = &cs42l52_ops, 893 }; 894 895 static int beep_rates[] = { 896 261, 522, 585, 667, 706, 774, 889, 1000, 897 1043, 1200, 1333, 1412, 1600, 1714, 2000, 2182 898 }; 899 cs42l52_beep_work(struct work_struct * work)900 static void cs42l52_beep_work(struct work_struct *work) 901 { 902 struct cs42l52_private *cs42l52 = 903 container_of(work, struct cs42l52_private, beep_work); 904 struct snd_soc_component *component = cs42l52->component; 905 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 906 int i; 907 int val = 0; 908 int best = 0; 909 910 if (cs42l52->beep_rate) { 911 for (i = 0; i < ARRAY_SIZE(beep_rates); i++) { 912 if (abs(cs42l52->beep_rate - beep_rates[i]) < 913 abs(cs42l52->beep_rate - beep_rates[best])) 914 best = i; 915 } 916 917 dev_dbg(component->dev, "Set beep rate %dHz for requested %dHz\n", 918 beep_rates[best], cs42l52->beep_rate); 919 920 val = (best << CS42L52_BEEP_RATE_SHIFT); 921 922 snd_soc_dapm_enable_pin(dapm, "Beep"); 923 } else { 924 dev_dbg(component->dev, "Disabling beep\n"); 925 snd_soc_dapm_disable_pin(dapm, "Beep"); 926 } 927 928 snd_soc_component_update_bits(component, CS42L52_BEEP_FREQ, 929 CS42L52_BEEP_RATE_MASK, val); 930 931 snd_soc_dapm_sync(dapm); 932 } 933 934 /* For usability define a way of injecting beep events for the device - 935 * many systems will not have a keyboard. 936 */ cs42l52_beep_event(struct input_dev * dev,unsigned int type,unsigned int code,int hz)937 static int cs42l52_beep_event(struct input_dev *dev, unsigned int type, 938 unsigned int code, int hz) 939 { 940 struct snd_soc_component *component = input_get_drvdata(dev); 941 struct cs42l52_private *cs42l52 = snd_soc_component_get_drvdata(component); 942 943 dev_dbg(component->dev, "Beep event %x %x\n", code, hz); 944 945 switch (code) { 946 case SND_BELL: 947 if (hz) 948 hz = 261; 949 break; 950 case SND_TONE: 951 break; 952 default: 953 return -1; 954 } 955 956 /* Kick the beep from a workqueue */ 957 cs42l52->beep_rate = hz; 958 schedule_work(&cs42l52->beep_work); 959 return 0; 960 } 961 beep_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)962 static ssize_t beep_store(struct device *dev, struct device_attribute *attr, 963 const char *buf, size_t count) 964 { 965 struct cs42l52_private *cs42l52 = dev_get_drvdata(dev); 966 long int time; 967 int ret; 968 969 ret = kstrtol(buf, 10, &time); 970 if (ret != 0) 971 return ret; 972 973 input_event(cs42l52->beep, EV_SND, SND_TONE, time); 974 975 return count; 976 } 977 978 static DEVICE_ATTR_WO(beep); 979 cs42l52_init_beep(struct snd_soc_component * component)980 static void cs42l52_init_beep(struct snd_soc_component *component) 981 { 982 struct cs42l52_private *cs42l52 = snd_soc_component_get_drvdata(component); 983 int ret; 984 985 cs42l52->beep = devm_input_allocate_device(component->dev); 986 if (!cs42l52->beep) { 987 dev_err(component->dev, "Failed to allocate beep device\n"); 988 return; 989 } 990 991 INIT_WORK(&cs42l52->beep_work, cs42l52_beep_work); 992 cs42l52->beep_rate = 0; 993 994 cs42l52->beep->name = "CS42L52 Beep Generator"; 995 cs42l52->beep->phys = dev_name(component->dev); 996 cs42l52->beep->id.bustype = BUS_I2C; 997 998 cs42l52->beep->evbit[0] = BIT_MASK(EV_SND); 999 cs42l52->beep->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE); 1000 cs42l52->beep->event = cs42l52_beep_event; 1001 cs42l52->beep->dev.parent = component->dev; 1002 input_set_drvdata(cs42l52->beep, component); 1003 1004 ret = input_register_device(cs42l52->beep); 1005 if (ret != 0) { 1006 cs42l52->beep = NULL; 1007 dev_err(component->dev, "Failed to register beep device\n"); 1008 } 1009 1010 ret = device_create_file(component->dev, &dev_attr_beep); 1011 if (ret != 0) { 1012 dev_err(component->dev, "Failed to create keyclick file: %d\n", 1013 ret); 1014 } 1015 } 1016 cs42l52_free_beep(struct snd_soc_component * component)1017 static void cs42l52_free_beep(struct snd_soc_component *component) 1018 { 1019 struct cs42l52_private *cs42l52 = snd_soc_component_get_drvdata(component); 1020 1021 device_remove_file(component->dev, &dev_attr_beep); 1022 cancel_work_sync(&cs42l52->beep_work); 1023 cs42l52->beep = NULL; 1024 1025 snd_soc_component_update_bits(component, CS42L52_BEEP_TONE_CTL, 1026 CS42L52_BEEP_EN_MASK, 0); 1027 } 1028 cs42l52_probe(struct snd_soc_component * component)1029 static int cs42l52_probe(struct snd_soc_component *component) 1030 { 1031 struct cs42l52_private *cs42l52 = snd_soc_component_get_drvdata(component); 1032 1033 regcache_cache_only(cs42l52->regmap, true); 1034 1035 cs42l52_add_mic_controls(component); 1036 1037 cs42l52_init_beep(component); 1038 1039 cs42l52->sysclk = CS42L52_DEFAULT_CLK; 1040 cs42l52->config.format = CS42L52_DEFAULT_FORMAT; 1041 1042 return 0; 1043 } 1044 cs42l52_remove(struct snd_soc_component * component)1045 static void cs42l52_remove(struct snd_soc_component *component) 1046 { 1047 cs42l52_free_beep(component); 1048 } 1049 1050 static const struct snd_soc_component_driver soc_component_dev_cs42l52 = { 1051 .probe = cs42l52_probe, 1052 .remove = cs42l52_remove, 1053 .set_bias_level = cs42l52_set_bias_level, 1054 .controls = cs42l52_snd_controls, 1055 .num_controls = ARRAY_SIZE(cs42l52_snd_controls), 1056 .dapm_widgets = cs42l52_dapm_widgets, 1057 .num_dapm_widgets = ARRAY_SIZE(cs42l52_dapm_widgets), 1058 .dapm_routes = cs42l52_audio_map, 1059 .num_dapm_routes = ARRAY_SIZE(cs42l52_audio_map), 1060 .suspend_bias_off = 1, 1061 .idle_bias_on = 1, 1062 .use_pmdown_time = 1, 1063 .endianness = 1, 1064 }; 1065 1066 /* Current and threshold powerup sequence Pg37 */ 1067 static const struct reg_sequence cs42l52_threshold_patch[] = { 1068 1069 { 0x00, 0x99 }, 1070 { 0x3E, 0xBA }, 1071 { 0x47, 0x80 }, 1072 { 0x32, 0xBB }, 1073 { 0x32, 0x3B }, 1074 { 0x00, 0x00 }, 1075 1076 }; 1077 1078 static const struct regmap_config cs42l52_regmap = { 1079 .reg_bits = 8, 1080 .val_bits = 8, 1081 1082 .max_register = CS42L52_MAX_REGISTER, 1083 .reg_defaults = cs42l52_reg_defaults, 1084 .num_reg_defaults = ARRAY_SIZE(cs42l52_reg_defaults), 1085 .readable_reg = cs42l52_readable_register, 1086 .volatile_reg = cs42l52_volatile_register, 1087 .cache_type = REGCACHE_MAPLE, 1088 }; 1089 cs42l52_i2c_probe(struct i2c_client * i2c_client)1090 static int cs42l52_i2c_probe(struct i2c_client *i2c_client) 1091 { 1092 struct cs42l52_private *cs42l52; 1093 struct cs42l52_platform_data *pdata = dev_get_platdata(&i2c_client->dev); 1094 int ret; 1095 unsigned int devid; 1096 unsigned int reg; 1097 u32 val32; 1098 1099 cs42l52 = devm_kzalloc(&i2c_client->dev, sizeof(*cs42l52), GFP_KERNEL); 1100 if (cs42l52 == NULL) 1101 return -ENOMEM; 1102 cs42l52->dev = &i2c_client->dev; 1103 1104 cs42l52->regmap = devm_regmap_init_i2c(i2c_client, &cs42l52_regmap); 1105 if (IS_ERR(cs42l52->regmap)) { 1106 ret = PTR_ERR(cs42l52->regmap); 1107 dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret); 1108 return ret; 1109 } 1110 if (pdata) { 1111 cs42l52->pdata = *pdata; 1112 } else { 1113 pdata = devm_kzalloc(&i2c_client->dev, sizeof(*pdata), 1114 GFP_KERNEL); 1115 if (!pdata) 1116 return -ENOMEM; 1117 1118 if (i2c_client->dev.of_node) { 1119 if (of_property_read_bool(i2c_client->dev.of_node, 1120 "cirrus,mica-differential-cfg")) 1121 pdata->mica_diff_cfg = true; 1122 1123 if (of_property_read_bool(i2c_client->dev.of_node, 1124 "cirrus,micb-differential-cfg")) 1125 pdata->micb_diff_cfg = true; 1126 1127 if (of_property_read_u32(i2c_client->dev.of_node, 1128 "cirrus,micbias-lvl", &val32) >= 0) 1129 pdata->micbias_lvl = val32; 1130 1131 if (of_property_read_u32(i2c_client->dev.of_node, 1132 "cirrus,chgfreq-divisor", &val32) >= 0) 1133 pdata->chgfreq = val32; 1134 1135 pdata->reset_gpio = 1136 of_get_named_gpio(i2c_client->dev.of_node, 1137 "cirrus,reset-gpio", 0); 1138 } 1139 cs42l52->pdata = *pdata; 1140 } 1141 1142 if (cs42l52->pdata.reset_gpio) { 1143 ret = devm_gpio_request_one(&i2c_client->dev, 1144 cs42l52->pdata.reset_gpio, 1145 GPIOF_OUT_INIT_HIGH, 1146 "CS42L52 /RST"); 1147 if (ret < 0) { 1148 dev_err(&i2c_client->dev, "Failed to request /RST %d: %d\n", 1149 cs42l52->pdata.reset_gpio, ret); 1150 return ret; 1151 } 1152 gpio_set_value_cansleep(cs42l52->pdata.reset_gpio, 0); 1153 gpio_set_value_cansleep(cs42l52->pdata.reset_gpio, 1); 1154 } 1155 1156 i2c_set_clientdata(i2c_client, cs42l52); 1157 1158 ret = regmap_register_patch(cs42l52->regmap, cs42l52_threshold_patch, 1159 ARRAY_SIZE(cs42l52_threshold_patch)); 1160 if (ret != 0) 1161 dev_warn(cs42l52->dev, "Failed to apply regmap patch: %d\n", 1162 ret); 1163 1164 ret = regmap_read(cs42l52->regmap, CS42L52_CHIP, ®); 1165 if (ret) { 1166 dev_err(&i2c_client->dev, "Failed to read chip ID: %d\n", ret); 1167 return ret; 1168 } 1169 1170 devid = reg & CS42L52_CHIP_ID_MASK; 1171 if (devid != CS42L52_CHIP_ID) { 1172 ret = -ENODEV; 1173 dev_err(&i2c_client->dev, 1174 "CS42L52 Device ID (%X). Expected %X\n", 1175 devid, CS42L52_CHIP_ID); 1176 return ret; 1177 } 1178 1179 dev_info(&i2c_client->dev, "Cirrus Logic CS42L52, Revision: %02X\n", 1180 reg & CS42L52_CHIP_REV_MASK); 1181 1182 /* Set Platform Data */ 1183 if (cs42l52->pdata.mica_diff_cfg) 1184 regmap_update_bits(cs42l52->regmap, CS42L52_MICA_CTL, 1185 CS42L52_MIC_CTL_TYPE_MASK, 1186 cs42l52->pdata.mica_diff_cfg << 1187 CS42L52_MIC_CTL_TYPE_SHIFT); 1188 1189 if (cs42l52->pdata.micb_diff_cfg) 1190 regmap_update_bits(cs42l52->regmap, CS42L52_MICB_CTL, 1191 CS42L52_MIC_CTL_TYPE_MASK, 1192 cs42l52->pdata.micb_diff_cfg << 1193 CS42L52_MIC_CTL_TYPE_SHIFT); 1194 1195 if (cs42l52->pdata.chgfreq) 1196 regmap_update_bits(cs42l52->regmap, CS42L52_CHARGE_PUMP, 1197 CS42L52_CHARGE_PUMP_MASK, 1198 cs42l52->pdata.chgfreq << 1199 CS42L52_CHARGE_PUMP_SHIFT); 1200 1201 if (cs42l52->pdata.micbias_lvl) 1202 regmap_update_bits(cs42l52->regmap, CS42L52_IFACE_CTL2, 1203 CS42L52_IFACE_CTL2_BIAS_LVL, 1204 cs42l52->pdata.micbias_lvl); 1205 1206 return devm_snd_soc_register_component(&i2c_client->dev, 1207 &soc_component_dev_cs42l52, &cs42l52_dai, 1); 1208 } 1209 1210 static const struct of_device_id cs42l52_of_match[] = { 1211 { .compatible = "cirrus,cs42l52", }, 1212 {}, 1213 }; 1214 MODULE_DEVICE_TABLE(of, cs42l52_of_match); 1215 1216 1217 static const struct i2c_device_id cs42l52_id[] = { 1218 { "cs42l52", 0 }, 1219 { } 1220 }; 1221 MODULE_DEVICE_TABLE(i2c, cs42l52_id); 1222 1223 static struct i2c_driver cs42l52_i2c_driver = { 1224 .driver = { 1225 .name = "cs42l52", 1226 .of_match_table = cs42l52_of_match, 1227 }, 1228 .id_table = cs42l52_id, 1229 .probe = cs42l52_i2c_probe, 1230 }; 1231 1232 module_i2c_driver(cs42l52_i2c_driver); 1233 1234 MODULE_DESCRIPTION("ASoC CS42L52 driver"); 1235 MODULE_AUTHOR("Georgi Vlaev, Nucleus Systems Ltd, <joe@nucleusys.com>"); 1236 MODULE_AUTHOR("Brian Austin, Cirrus Logic Inc, <brian.austin@cirrus.com>"); 1237 MODULE_LICENSE("GPL"); 1238