1 /* 2 * wm8903.c -- WM8903 ALSA SoC Audio driver 3 * 4 * Copyright 2008-12 Wolfson Microelectronics 5 * Copyright 2011-2012 NVIDIA, Inc. 6 * 7 * Author: Mark Brown <broonie@opensource.wolfsonmicro.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 * TODO: 14 * - TDM mode configuration. 15 * - Digital microphone support. 16 */ 17 18 #include <linux/module.h> 19 #include <linux/moduleparam.h> 20 #include <linux/init.h> 21 #include <linux/completion.h> 22 #include <linux/delay.h> 23 #include <linux/gpio.h> 24 #include <linux/pm.h> 25 #include <linux/i2c.h> 26 #include <linux/regmap.h> 27 #include <linux/slab.h> 28 #include <linux/irq.h> 29 #include <sound/core.h> 30 #include <sound/jack.h> 31 #include <sound/pcm.h> 32 #include <sound/pcm_params.h> 33 #include <sound/tlv.h> 34 #include <sound/soc.h> 35 #include <sound/initval.h> 36 #include <sound/wm8903.h> 37 #include <trace/events/asoc.h> 38 39 #include "wm8903.h" 40 41 /* Register defaults at reset */ 42 static const struct reg_default wm8903_reg_defaults[] = { 43 { 4, 0x0018 }, /* R4 - Bias Control 0 */ 44 { 5, 0x0000 }, /* R5 - VMID Control 0 */ 45 { 6, 0x0000 }, /* R6 - Mic Bias Control 0 */ 46 { 8, 0x0001 }, /* R8 - Analogue DAC 0 */ 47 { 10, 0x0001 }, /* R10 - Analogue ADC 0 */ 48 { 12, 0x0000 }, /* R12 - Power Management 0 */ 49 { 13, 0x0000 }, /* R13 - Power Management 1 */ 50 { 14, 0x0000 }, /* R14 - Power Management 2 */ 51 { 15, 0x0000 }, /* R15 - Power Management 3 */ 52 { 16, 0x0000 }, /* R16 - Power Management 4 */ 53 { 17, 0x0000 }, /* R17 - Power Management 5 */ 54 { 18, 0x0000 }, /* R18 - Power Management 6 */ 55 { 20, 0x0400 }, /* R20 - Clock Rates 0 */ 56 { 21, 0x0D07 }, /* R21 - Clock Rates 1 */ 57 { 22, 0x0000 }, /* R22 - Clock Rates 2 */ 58 { 24, 0x0050 }, /* R24 - Audio Interface 0 */ 59 { 25, 0x0242 }, /* R25 - Audio Interface 1 */ 60 { 26, 0x0008 }, /* R26 - Audio Interface 2 */ 61 { 27, 0x0022 }, /* R27 - Audio Interface 3 */ 62 { 30, 0x00C0 }, /* R30 - DAC Digital Volume Left */ 63 { 31, 0x00C0 }, /* R31 - DAC Digital Volume Right */ 64 { 32, 0x0000 }, /* R32 - DAC Digital 0 */ 65 { 33, 0x0000 }, /* R33 - DAC Digital 1 */ 66 { 36, 0x00C0 }, /* R36 - ADC Digital Volume Left */ 67 { 37, 0x00C0 }, /* R37 - ADC Digital Volume Right */ 68 { 38, 0x0000 }, /* R38 - ADC Digital 0 */ 69 { 39, 0x0073 }, /* R39 - Digital Microphone 0 */ 70 { 40, 0x09BF }, /* R40 - DRC 0 */ 71 { 41, 0x3241 }, /* R41 - DRC 1 */ 72 { 42, 0x0020 }, /* R42 - DRC 2 */ 73 { 43, 0x0000 }, /* R43 - DRC 3 */ 74 { 44, 0x0085 }, /* R44 - Analogue Left Input 0 */ 75 { 45, 0x0085 }, /* R45 - Analogue Right Input 0 */ 76 { 46, 0x0044 }, /* R46 - Analogue Left Input 1 */ 77 { 47, 0x0044 }, /* R47 - Analogue Right Input 1 */ 78 { 50, 0x0008 }, /* R50 - Analogue Left Mix 0 */ 79 { 51, 0x0004 }, /* R51 - Analogue Right Mix 0 */ 80 { 52, 0x0000 }, /* R52 - Analogue Spk Mix Left 0 */ 81 { 53, 0x0000 }, /* R53 - Analogue Spk Mix Left 1 */ 82 { 54, 0x0000 }, /* R54 - Analogue Spk Mix Right 0 */ 83 { 55, 0x0000 }, /* R55 - Analogue Spk Mix Right 1 */ 84 { 57, 0x002D }, /* R57 - Analogue OUT1 Left */ 85 { 58, 0x002D }, /* R58 - Analogue OUT1 Right */ 86 { 59, 0x0039 }, /* R59 - Analogue OUT2 Left */ 87 { 60, 0x0039 }, /* R60 - Analogue OUT2 Right */ 88 { 62, 0x0139 }, /* R62 - Analogue OUT3 Left */ 89 { 63, 0x0139 }, /* R63 - Analogue OUT3 Right */ 90 { 64, 0x0000 }, /* R65 - Analogue SPK Output Control 0 */ 91 { 67, 0x0010 }, /* R67 - DC Servo 0 */ 92 { 69, 0x00A4 }, /* R69 - DC Servo 2 */ 93 { 90, 0x0000 }, /* R90 - Analogue HP 0 */ 94 { 94, 0x0000 }, /* R94 - Analogue Lineout 0 */ 95 { 98, 0x0000 }, /* R98 - Charge Pump 0 */ 96 { 104, 0x0000 }, /* R104 - Class W 0 */ 97 { 108, 0x0000 }, /* R108 - Write Sequencer 0 */ 98 { 109, 0x0000 }, /* R109 - Write Sequencer 1 */ 99 { 110, 0x0000 }, /* R110 - Write Sequencer 2 */ 100 { 111, 0x0000 }, /* R111 - Write Sequencer 3 */ 101 { 112, 0x0000 }, /* R112 - Write Sequencer 4 */ 102 { 114, 0x0000 }, /* R114 - Control Interface */ 103 { 116, 0x00A8 }, /* R116 - GPIO Control 1 */ 104 { 117, 0x00A8 }, /* R117 - GPIO Control 2 */ 105 { 118, 0x00A8 }, /* R118 - GPIO Control 3 */ 106 { 119, 0x0220 }, /* R119 - GPIO Control 4 */ 107 { 120, 0x01A0 }, /* R120 - GPIO Control 5 */ 108 { 122, 0xFFFF }, /* R122 - Interrupt Status 1 Mask */ 109 { 123, 0x0000 }, /* R123 - Interrupt Polarity 1 */ 110 { 126, 0x0000 }, /* R126 - Interrupt Control */ 111 { 129, 0x0000 }, /* R129 - Control Interface Test 1 */ 112 { 149, 0x6810 }, /* R149 - Charge Pump Test 1 */ 113 { 164, 0x0028 }, /* R164 - Clock Rate Test 4 */ 114 { 172, 0x0000 }, /* R172 - Analogue Output Bias 0 */ 115 }; 116 117 struct wm8903_priv { 118 struct wm8903_platform_data *pdata; 119 struct device *dev; 120 struct snd_soc_codec *codec; 121 struct regmap *regmap; 122 123 int sysclk; 124 int irq; 125 126 int fs; 127 int deemph; 128 129 int dcs_pending; 130 int dcs_cache[4]; 131 132 /* Reference count */ 133 int class_w_users; 134 135 struct snd_soc_jack *mic_jack; 136 int mic_det; 137 int mic_short; 138 int mic_last_report; 139 int mic_delay; 140 141 #ifdef CONFIG_GPIOLIB 142 struct gpio_chip gpio_chip; 143 #endif 144 }; 145 146 static bool wm8903_readable_register(struct device *dev, unsigned int reg) 147 { 148 switch (reg) { 149 case WM8903_SW_RESET_AND_ID: 150 case WM8903_REVISION_NUMBER: 151 case WM8903_BIAS_CONTROL_0: 152 case WM8903_VMID_CONTROL_0: 153 case WM8903_MIC_BIAS_CONTROL_0: 154 case WM8903_ANALOGUE_DAC_0: 155 case WM8903_ANALOGUE_ADC_0: 156 case WM8903_POWER_MANAGEMENT_0: 157 case WM8903_POWER_MANAGEMENT_1: 158 case WM8903_POWER_MANAGEMENT_2: 159 case WM8903_POWER_MANAGEMENT_3: 160 case WM8903_POWER_MANAGEMENT_4: 161 case WM8903_POWER_MANAGEMENT_5: 162 case WM8903_POWER_MANAGEMENT_6: 163 case WM8903_CLOCK_RATES_0: 164 case WM8903_CLOCK_RATES_1: 165 case WM8903_CLOCK_RATES_2: 166 case WM8903_AUDIO_INTERFACE_0: 167 case WM8903_AUDIO_INTERFACE_1: 168 case WM8903_AUDIO_INTERFACE_2: 169 case WM8903_AUDIO_INTERFACE_3: 170 case WM8903_DAC_DIGITAL_VOLUME_LEFT: 171 case WM8903_DAC_DIGITAL_VOLUME_RIGHT: 172 case WM8903_DAC_DIGITAL_0: 173 case WM8903_DAC_DIGITAL_1: 174 case WM8903_ADC_DIGITAL_VOLUME_LEFT: 175 case WM8903_ADC_DIGITAL_VOLUME_RIGHT: 176 case WM8903_ADC_DIGITAL_0: 177 case WM8903_DIGITAL_MICROPHONE_0: 178 case WM8903_DRC_0: 179 case WM8903_DRC_1: 180 case WM8903_DRC_2: 181 case WM8903_DRC_3: 182 case WM8903_ANALOGUE_LEFT_INPUT_0: 183 case WM8903_ANALOGUE_RIGHT_INPUT_0: 184 case WM8903_ANALOGUE_LEFT_INPUT_1: 185 case WM8903_ANALOGUE_RIGHT_INPUT_1: 186 case WM8903_ANALOGUE_LEFT_MIX_0: 187 case WM8903_ANALOGUE_RIGHT_MIX_0: 188 case WM8903_ANALOGUE_SPK_MIX_LEFT_0: 189 case WM8903_ANALOGUE_SPK_MIX_LEFT_1: 190 case WM8903_ANALOGUE_SPK_MIX_RIGHT_0: 191 case WM8903_ANALOGUE_SPK_MIX_RIGHT_1: 192 case WM8903_ANALOGUE_OUT1_LEFT: 193 case WM8903_ANALOGUE_OUT1_RIGHT: 194 case WM8903_ANALOGUE_OUT2_LEFT: 195 case WM8903_ANALOGUE_OUT2_RIGHT: 196 case WM8903_ANALOGUE_OUT3_LEFT: 197 case WM8903_ANALOGUE_OUT3_RIGHT: 198 case WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0: 199 case WM8903_DC_SERVO_0: 200 case WM8903_DC_SERVO_2: 201 case WM8903_DC_SERVO_READBACK_1: 202 case WM8903_DC_SERVO_READBACK_2: 203 case WM8903_DC_SERVO_READBACK_3: 204 case WM8903_DC_SERVO_READBACK_4: 205 case WM8903_ANALOGUE_HP_0: 206 case WM8903_ANALOGUE_LINEOUT_0: 207 case WM8903_CHARGE_PUMP_0: 208 case WM8903_CLASS_W_0: 209 case WM8903_WRITE_SEQUENCER_0: 210 case WM8903_WRITE_SEQUENCER_1: 211 case WM8903_WRITE_SEQUENCER_2: 212 case WM8903_WRITE_SEQUENCER_3: 213 case WM8903_WRITE_SEQUENCER_4: 214 case WM8903_CONTROL_INTERFACE: 215 case WM8903_GPIO_CONTROL_1: 216 case WM8903_GPIO_CONTROL_2: 217 case WM8903_GPIO_CONTROL_3: 218 case WM8903_GPIO_CONTROL_4: 219 case WM8903_GPIO_CONTROL_5: 220 case WM8903_INTERRUPT_STATUS_1: 221 case WM8903_INTERRUPT_STATUS_1_MASK: 222 case WM8903_INTERRUPT_POLARITY_1: 223 case WM8903_INTERRUPT_CONTROL: 224 case WM8903_CLOCK_RATE_TEST_4: 225 case WM8903_ANALOGUE_OUTPUT_BIAS_0: 226 return true; 227 default: 228 return false; 229 } 230 } 231 232 static bool wm8903_volatile_register(struct device *dev, unsigned int reg) 233 { 234 switch (reg) { 235 case WM8903_SW_RESET_AND_ID: 236 case WM8903_REVISION_NUMBER: 237 case WM8903_INTERRUPT_STATUS_1: 238 case WM8903_WRITE_SEQUENCER_4: 239 case WM8903_DC_SERVO_READBACK_1: 240 case WM8903_DC_SERVO_READBACK_2: 241 case WM8903_DC_SERVO_READBACK_3: 242 case WM8903_DC_SERVO_READBACK_4: 243 return 1; 244 245 default: 246 return 0; 247 } 248 } 249 250 static int wm8903_cp_event(struct snd_soc_dapm_widget *w, 251 struct snd_kcontrol *kcontrol, int event) 252 { 253 WARN_ON(event != SND_SOC_DAPM_POST_PMU); 254 mdelay(4); 255 256 return 0; 257 } 258 259 static int wm8903_dcs_event(struct snd_soc_dapm_widget *w, 260 struct snd_kcontrol *kcontrol, int event) 261 { 262 struct snd_soc_codec *codec = w->codec; 263 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec); 264 265 switch (event) { 266 case SND_SOC_DAPM_POST_PMU: 267 wm8903->dcs_pending |= 1 << w->shift; 268 break; 269 case SND_SOC_DAPM_PRE_PMD: 270 snd_soc_update_bits(codec, WM8903_DC_SERVO_0, 271 1 << w->shift, 0); 272 break; 273 } 274 275 return 0; 276 } 277 278 #define WM8903_DCS_MODE_WRITE_STOP 0 279 #define WM8903_DCS_MODE_START_STOP 2 280 281 static void wm8903_seq_notifier(struct snd_soc_dapm_context *dapm, 282 enum snd_soc_dapm_type event, int subseq) 283 { 284 struct snd_soc_codec *codec = container_of(dapm, 285 struct snd_soc_codec, dapm); 286 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec); 287 int dcs_mode = WM8903_DCS_MODE_WRITE_STOP; 288 int i, val; 289 290 /* Complete any pending DC servo starts */ 291 if (wm8903->dcs_pending) { 292 dev_dbg(codec->dev, "Starting DC servo for %x\n", 293 wm8903->dcs_pending); 294 295 /* If we've no cached values then we need to do startup */ 296 for (i = 0; i < ARRAY_SIZE(wm8903->dcs_cache); i++) { 297 if (!(wm8903->dcs_pending & (1 << i))) 298 continue; 299 300 if (wm8903->dcs_cache[i]) { 301 dev_dbg(codec->dev, 302 "Restore DC servo %d value %x\n", 303 3 - i, wm8903->dcs_cache[i]); 304 305 snd_soc_write(codec, WM8903_DC_SERVO_4 + i, 306 wm8903->dcs_cache[i] & 0xff); 307 } else { 308 dev_dbg(codec->dev, 309 "Calibrate DC servo %d\n", 3 - i); 310 dcs_mode = WM8903_DCS_MODE_START_STOP; 311 } 312 } 313 314 /* Don't trust the cache for analogue */ 315 if (wm8903->class_w_users) 316 dcs_mode = WM8903_DCS_MODE_START_STOP; 317 318 snd_soc_update_bits(codec, WM8903_DC_SERVO_2, 319 WM8903_DCS_MODE_MASK, dcs_mode); 320 321 snd_soc_update_bits(codec, WM8903_DC_SERVO_0, 322 WM8903_DCS_ENA_MASK, wm8903->dcs_pending); 323 324 switch (dcs_mode) { 325 case WM8903_DCS_MODE_WRITE_STOP: 326 break; 327 328 case WM8903_DCS_MODE_START_STOP: 329 msleep(270); 330 331 /* Cache the measured offsets for digital */ 332 if (wm8903->class_w_users) 333 break; 334 335 for (i = 0; i < ARRAY_SIZE(wm8903->dcs_cache); i++) { 336 if (!(wm8903->dcs_pending & (1 << i))) 337 continue; 338 339 val = snd_soc_read(codec, 340 WM8903_DC_SERVO_READBACK_1 + i); 341 dev_dbg(codec->dev, "DC servo %d: %x\n", 342 3 - i, val); 343 wm8903->dcs_cache[i] = val; 344 } 345 break; 346 347 default: 348 pr_warn("DCS mode %d delay not set\n", dcs_mode); 349 break; 350 } 351 352 wm8903->dcs_pending = 0; 353 } 354 } 355 356 /* 357 * When used with DAC outputs only the WM8903 charge pump supports 358 * operation in class W mode, providing very low power consumption 359 * when used with digital sources. Enable and disable this mode 360 * automatically depending on the mixer configuration. 361 * 362 * All the relevant controls are simple switches. 363 */ 364 static int wm8903_class_w_put(struct snd_kcontrol *kcontrol, 365 struct snd_ctl_elem_value *ucontrol) 366 { 367 struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); 368 struct snd_soc_dapm_widget *widget = wlist->widgets[0]; 369 struct snd_soc_codec *codec = widget->codec; 370 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec); 371 u16 reg; 372 int ret; 373 374 reg = snd_soc_read(codec, WM8903_CLASS_W_0); 375 376 /* Turn it off if we're about to enable bypass */ 377 if (ucontrol->value.integer.value[0]) { 378 if (wm8903->class_w_users == 0) { 379 dev_dbg(codec->dev, "Disabling Class W\n"); 380 snd_soc_write(codec, WM8903_CLASS_W_0, reg & 381 ~(WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V)); 382 } 383 wm8903->class_w_users++; 384 } 385 386 /* Implement the change */ 387 ret = snd_soc_dapm_put_volsw(kcontrol, ucontrol); 388 389 /* If we've just disabled the last bypass path turn Class W on */ 390 if (!ucontrol->value.integer.value[0]) { 391 if (wm8903->class_w_users == 1) { 392 dev_dbg(codec->dev, "Enabling Class W\n"); 393 snd_soc_write(codec, WM8903_CLASS_W_0, reg | 394 WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V); 395 } 396 wm8903->class_w_users--; 397 } 398 399 dev_dbg(codec->dev, "Bypass use count now %d\n", 400 wm8903->class_w_users); 401 402 return ret; 403 } 404 405 #define SOC_DAPM_SINGLE_W(xname, reg, shift, max, invert) \ 406 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 407 .info = snd_soc_info_volsw, \ 408 .get = snd_soc_dapm_get_volsw, .put = wm8903_class_w_put, \ 409 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) } 410 411 412 static int wm8903_deemph[] = { 0, 32000, 44100, 48000 }; 413 414 static int wm8903_set_deemph(struct snd_soc_codec *codec) 415 { 416 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec); 417 int val, i, best; 418 419 /* If we're using deemphasis select the nearest available sample 420 * rate. 421 */ 422 if (wm8903->deemph) { 423 best = 1; 424 for (i = 2; i < ARRAY_SIZE(wm8903_deemph); i++) { 425 if (abs(wm8903_deemph[i] - wm8903->fs) < 426 abs(wm8903_deemph[best] - wm8903->fs)) 427 best = i; 428 } 429 430 val = best << WM8903_DEEMPH_SHIFT; 431 } else { 432 best = 0; 433 val = 0; 434 } 435 436 dev_dbg(codec->dev, "Set deemphasis %d (%dHz)\n", 437 best, wm8903_deemph[best]); 438 439 return snd_soc_update_bits(codec, WM8903_DAC_DIGITAL_1, 440 WM8903_DEEMPH_MASK, val); 441 } 442 443 static int wm8903_get_deemph(struct snd_kcontrol *kcontrol, 444 struct snd_ctl_elem_value *ucontrol) 445 { 446 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 447 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec); 448 449 ucontrol->value.enumerated.item[0] = wm8903->deemph; 450 451 return 0; 452 } 453 454 static int wm8903_put_deemph(struct snd_kcontrol *kcontrol, 455 struct snd_ctl_elem_value *ucontrol) 456 { 457 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 458 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec); 459 int deemph = ucontrol->value.enumerated.item[0]; 460 int ret = 0; 461 462 if (deemph > 1) 463 return -EINVAL; 464 465 mutex_lock(&codec->mutex); 466 if (wm8903->deemph != deemph) { 467 wm8903->deemph = deemph; 468 469 wm8903_set_deemph(codec); 470 471 ret = 1; 472 } 473 mutex_unlock(&codec->mutex); 474 475 return ret; 476 } 477 478 /* ALSA can only do steps of .01dB */ 479 static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1); 480 481 static const DECLARE_TLV_DB_SCALE(digital_sidetone_tlv, -3600, 300, 0); 482 static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0); 483 484 static const DECLARE_TLV_DB_SCALE(drc_tlv_thresh, 0, 75, 0); 485 static const DECLARE_TLV_DB_SCALE(drc_tlv_amp, -2250, 75, 0); 486 static const DECLARE_TLV_DB_SCALE(drc_tlv_min, 0, 600, 0); 487 static const DECLARE_TLV_DB_SCALE(drc_tlv_max, 1200, 600, 0); 488 static const DECLARE_TLV_DB_SCALE(drc_tlv_startup, -300, 50, 0); 489 490 static const char *hpf_mode_text[] = { 491 "Hi-fi", "Voice 1", "Voice 2", "Voice 3" 492 }; 493 494 static const struct soc_enum hpf_mode = 495 SOC_ENUM_SINGLE(WM8903_ADC_DIGITAL_0, 5, 4, hpf_mode_text); 496 497 static const char *osr_text[] = { 498 "Low power", "High performance" 499 }; 500 501 static const struct soc_enum adc_osr = 502 SOC_ENUM_SINGLE(WM8903_ANALOGUE_ADC_0, 0, 2, osr_text); 503 504 static const struct soc_enum dac_osr = 505 SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1, 0, 2, osr_text); 506 507 static const char *drc_slope_text[] = { 508 "1", "1/2", "1/4", "1/8", "1/16", "0" 509 }; 510 511 static const struct soc_enum drc_slope_r0 = 512 SOC_ENUM_SINGLE(WM8903_DRC_2, 3, 6, drc_slope_text); 513 514 static const struct soc_enum drc_slope_r1 = 515 SOC_ENUM_SINGLE(WM8903_DRC_2, 0, 6, drc_slope_text); 516 517 static const char *drc_attack_text[] = { 518 "instantaneous", 519 "363us", "762us", "1.45ms", "2.9ms", "5.8ms", "11.6ms", "23.2ms", 520 "46.4ms", "92.8ms", "185.6ms" 521 }; 522 523 static const struct soc_enum drc_attack = 524 SOC_ENUM_SINGLE(WM8903_DRC_1, 12, 11, drc_attack_text); 525 526 static const char *drc_decay_text[] = { 527 "186ms", "372ms", "743ms", "1.49s", "2.97s", "5.94s", "11.89s", 528 "23.87s", "47.56s" 529 }; 530 531 static const struct soc_enum drc_decay = 532 SOC_ENUM_SINGLE(WM8903_DRC_1, 8, 9, drc_decay_text); 533 534 static const char *drc_ff_delay_text[] = { 535 "5 samples", "9 samples" 536 }; 537 538 static const struct soc_enum drc_ff_delay = 539 SOC_ENUM_SINGLE(WM8903_DRC_0, 5, 2, drc_ff_delay_text); 540 541 static const char *drc_qr_decay_text[] = { 542 "0.725ms", "1.45ms", "5.8ms" 543 }; 544 545 static const struct soc_enum drc_qr_decay = 546 SOC_ENUM_SINGLE(WM8903_DRC_1, 4, 3, drc_qr_decay_text); 547 548 static const char *drc_smoothing_text[] = { 549 "Low", "Medium", "High" 550 }; 551 552 static const struct soc_enum drc_smoothing = 553 SOC_ENUM_SINGLE(WM8903_DRC_0, 11, 3, drc_smoothing_text); 554 555 static const char *soft_mute_text[] = { 556 "Fast (fs/2)", "Slow (fs/32)" 557 }; 558 559 static const struct soc_enum soft_mute = 560 SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1, 10, 2, soft_mute_text); 561 562 static const char *mute_mode_text[] = { 563 "Hard", "Soft" 564 }; 565 566 static const struct soc_enum mute_mode = 567 SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1, 9, 2, mute_mode_text); 568 569 static const char *companding_text[] = { 570 "ulaw", "alaw" 571 }; 572 573 static const struct soc_enum dac_companding = 574 SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 0, 2, companding_text); 575 576 static const struct soc_enum adc_companding = 577 SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 2, 2, companding_text); 578 579 static const char *input_mode_text[] = { 580 "Single-Ended", "Differential Line", "Differential Mic" 581 }; 582 583 static const struct soc_enum linput_mode_enum = 584 SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1, 0, 3, input_mode_text); 585 586 static const struct soc_enum rinput_mode_enum = 587 SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 0, 3, input_mode_text); 588 589 static const char *linput_mux_text[] = { 590 "IN1L", "IN2L", "IN3L" 591 }; 592 593 static const struct soc_enum linput_enum = 594 SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1, 2, 3, linput_mux_text); 595 596 static const struct soc_enum linput_inv_enum = 597 SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1, 4, 3, linput_mux_text); 598 599 static const char *rinput_mux_text[] = { 600 "IN1R", "IN2R", "IN3R" 601 }; 602 603 static const struct soc_enum rinput_enum = 604 SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 2, 3, rinput_mux_text); 605 606 static const struct soc_enum rinput_inv_enum = 607 SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 4, 3, rinput_mux_text); 608 609 610 static const char *sidetone_text[] = { 611 "None", "Left", "Right" 612 }; 613 614 static const struct soc_enum lsidetone_enum = 615 SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_0, 2, 3, sidetone_text); 616 617 static const struct soc_enum rsidetone_enum = 618 SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_0, 0, 3, sidetone_text); 619 620 static const char *adcinput_text[] = { 621 "ADC", "DMIC" 622 }; 623 624 static const struct soc_enum adcinput_enum = 625 SOC_ENUM_SINGLE(WM8903_CLOCK_RATE_TEST_4, 9, 2, adcinput_text); 626 627 static const char *aif_text[] = { 628 "Left", "Right" 629 }; 630 631 static const struct soc_enum lcapture_enum = 632 SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 7, 2, aif_text); 633 634 static const struct soc_enum rcapture_enum = 635 SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 6, 2, aif_text); 636 637 static const struct soc_enum lplay_enum = 638 SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 5, 2, aif_text); 639 640 static const struct soc_enum rplay_enum = 641 SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 4, 2, aif_text); 642 643 static const struct snd_kcontrol_new wm8903_snd_controls[] = { 644 645 /* Input PGAs - No TLV since the scale depends on PGA mode */ 646 SOC_SINGLE("Left Input PGA Switch", WM8903_ANALOGUE_LEFT_INPUT_0, 647 7, 1, 1), 648 SOC_SINGLE("Left Input PGA Volume", WM8903_ANALOGUE_LEFT_INPUT_0, 649 0, 31, 0), 650 SOC_SINGLE("Left Input PGA Common Mode Switch", WM8903_ANALOGUE_LEFT_INPUT_1, 651 6, 1, 0), 652 653 SOC_SINGLE("Right Input PGA Switch", WM8903_ANALOGUE_RIGHT_INPUT_0, 654 7, 1, 1), 655 SOC_SINGLE("Right Input PGA Volume", WM8903_ANALOGUE_RIGHT_INPUT_0, 656 0, 31, 0), 657 SOC_SINGLE("Right Input PGA Common Mode Switch", WM8903_ANALOGUE_RIGHT_INPUT_1, 658 6, 1, 0), 659 660 /* ADCs */ 661 SOC_ENUM("ADC OSR", adc_osr), 662 SOC_SINGLE("HPF Switch", WM8903_ADC_DIGITAL_0, 4, 1, 0), 663 SOC_ENUM("HPF Mode", hpf_mode), 664 SOC_SINGLE("DRC Switch", WM8903_DRC_0, 15, 1, 0), 665 SOC_ENUM("DRC Compressor Slope R0", drc_slope_r0), 666 SOC_ENUM("DRC Compressor Slope R1", drc_slope_r1), 667 SOC_SINGLE_TLV("DRC Compressor Threshold Volume", WM8903_DRC_3, 5, 124, 1, 668 drc_tlv_thresh), 669 SOC_SINGLE_TLV("DRC Volume", WM8903_DRC_3, 0, 30, 1, drc_tlv_amp), 670 SOC_SINGLE_TLV("DRC Minimum Gain Volume", WM8903_DRC_1, 2, 3, 1, drc_tlv_min), 671 SOC_SINGLE_TLV("DRC Maximum Gain Volume", WM8903_DRC_1, 0, 3, 0, drc_tlv_max), 672 SOC_ENUM("DRC Attack Rate", drc_attack), 673 SOC_ENUM("DRC Decay Rate", drc_decay), 674 SOC_ENUM("DRC FF Delay", drc_ff_delay), 675 SOC_SINGLE("DRC Anticlip Switch", WM8903_DRC_0, 1, 1, 0), 676 SOC_SINGLE("DRC QR Switch", WM8903_DRC_0, 2, 1, 0), 677 SOC_SINGLE_TLV("DRC QR Threshold Volume", WM8903_DRC_0, 6, 3, 0, drc_tlv_max), 678 SOC_ENUM("DRC QR Decay Rate", drc_qr_decay), 679 SOC_SINGLE("DRC Smoothing Switch", WM8903_DRC_0, 3, 1, 0), 680 SOC_SINGLE("DRC Smoothing Hysteresis Switch", WM8903_DRC_0, 0, 1, 0), 681 SOC_ENUM("DRC Smoothing Threshold", drc_smoothing), 682 SOC_SINGLE_TLV("DRC Startup Volume", WM8903_DRC_0, 6, 18, 0, drc_tlv_startup), 683 684 SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8903_ADC_DIGITAL_VOLUME_LEFT, 685 WM8903_ADC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv), 686 SOC_ENUM("ADC Companding Mode", adc_companding), 687 SOC_SINGLE("ADC Companding Switch", WM8903_AUDIO_INTERFACE_0, 3, 1, 0), 688 689 SOC_DOUBLE_TLV("Digital Sidetone Volume", WM8903_DAC_DIGITAL_0, 4, 8, 690 12, 0, digital_sidetone_tlv), 691 692 /* DAC */ 693 SOC_ENUM("DAC OSR", dac_osr), 694 SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8903_DAC_DIGITAL_VOLUME_LEFT, 695 WM8903_DAC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv), 696 SOC_ENUM("DAC Soft Mute Rate", soft_mute), 697 SOC_ENUM("DAC Mute Mode", mute_mode), 698 SOC_SINGLE("DAC Mono Switch", WM8903_DAC_DIGITAL_1, 12, 1, 0), 699 SOC_ENUM("DAC Companding Mode", dac_companding), 700 SOC_SINGLE("DAC Companding Switch", WM8903_AUDIO_INTERFACE_0, 1, 1, 0), 701 SOC_SINGLE_BOOL_EXT("Playback Deemphasis Switch", 0, 702 wm8903_get_deemph, wm8903_put_deemph), 703 704 /* Headphones */ 705 SOC_DOUBLE_R("Headphone Switch", 706 WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT, 707 8, 1, 1), 708 SOC_DOUBLE_R("Headphone ZC Switch", 709 WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT, 710 6, 1, 0), 711 SOC_DOUBLE_R_TLV("Headphone Volume", 712 WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT, 713 0, 63, 0, out_tlv), 714 715 /* Line out */ 716 SOC_DOUBLE_R("Line Out Switch", 717 WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT, 718 8, 1, 1), 719 SOC_DOUBLE_R("Line Out ZC Switch", 720 WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT, 721 6, 1, 0), 722 SOC_DOUBLE_R_TLV("Line Out Volume", 723 WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT, 724 0, 63, 0, out_tlv), 725 726 /* Speaker */ 727 SOC_DOUBLE_R("Speaker Switch", 728 WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT, 8, 1, 1), 729 SOC_DOUBLE_R("Speaker ZC Switch", 730 WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT, 6, 1, 0), 731 SOC_DOUBLE_R_TLV("Speaker Volume", 732 WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT, 733 0, 63, 0, out_tlv), 734 }; 735 736 static const struct snd_kcontrol_new linput_mode_mux = 737 SOC_DAPM_ENUM("Left Input Mode Mux", linput_mode_enum); 738 739 static const struct snd_kcontrol_new rinput_mode_mux = 740 SOC_DAPM_ENUM("Right Input Mode Mux", rinput_mode_enum); 741 742 static const struct snd_kcontrol_new linput_mux = 743 SOC_DAPM_ENUM("Left Input Mux", linput_enum); 744 745 static const struct snd_kcontrol_new linput_inv_mux = 746 SOC_DAPM_ENUM("Left Inverting Input Mux", linput_inv_enum); 747 748 static const struct snd_kcontrol_new rinput_mux = 749 SOC_DAPM_ENUM("Right Input Mux", rinput_enum); 750 751 static const struct snd_kcontrol_new rinput_inv_mux = 752 SOC_DAPM_ENUM("Right Inverting Input Mux", rinput_inv_enum); 753 754 static const struct snd_kcontrol_new lsidetone_mux = 755 SOC_DAPM_ENUM("DACL Sidetone Mux", lsidetone_enum); 756 757 static const struct snd_kcontrol_new rsidetone_mux = 758 SOC_DAPM_ENUM("DACR Sidetone Mux", rsidetone_enum); 759 760 static const struct snd_kcontrol_new adcinput_mux = 761 SOC_DAPM_ENUM("ADC Input", adcinput_enum); 762 763 static const struct snd_kcontrol_new lcapture_mux = 764 SOC_DAPM_ENUM("Left Capture Mux", lcapture_enum); 765 766 static const struct snd_kcontrol_new rcapture_mux = 767 SOC_DAPM_ENUM("Right Capture Mux", rcapture_enum); 768 769 static const struct snd_kcontrol_new lplay_mux = 770 SOC_DAPM_ENUM("Left Playback Mux", lplay_enum); 771 772 static const struct snd_kcontrol_new rplay_mux = 773 SOC_DAPM_ENUM("Right Playback Mux", rplay_enum); 774 775 static const struct snd_kcontrol_new left_output_mixer[] = { 776 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_LEFT_MIX_0, 3, 1, 0), 777 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_LEFT_MIX_0, 2, 1, 0), 778 SOC_DAPM_SINGLE_W("Left Bypass Switch", WM8903_ANALOGUE_LEFT_MIX_0, 1, 1, 0), 779 SOC_DAPM_SINGLE_W("Right Bypass Switch", WM8903_ANALOGUE_LEFT_MIX_0, 0, 1, 0), 780 }; 781 782 static const struct snd_kcontrol_new right_output_mixer[] = { 783 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 3, 1, 0), 784 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 2, 1, 0), 785 SOC_DAPM_SINGLE_W("Left Bypass Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 1, 1, 0), 786 SOC_DAPM_SINGLE_W("Right Bypass Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 0, 1, 0), 787 }; 788 789 static const struct snd_kcontrol_new left_speaker_mixer[] = { 790 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 3, 1, 0), 791 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 2, 1, 0), 792 SOC_DAPM_SINGLE("Left Bypass Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 1, 1, 0), 793 SOC_DAPM_SINGLE("Right Bypass Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 794 0, 1, 0), 795 }; 796 797 static const struct snd_kcontrol_new right_speaker_mixer[] = { 798 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0, 3, 1, 0), 799 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0, 2, 1, 0), 800 SOC_DAPM_SINGLE("Left Bypass Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0, 801 1, 1, 0), 802 SOC_DAPM_SINGLE("Right Bypass Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0, 803 0, 1, 0), 804 }; 805 806 static const struct snd_soc_dapm_widget wm8903_dapm_widgets[] = { 807 SND_SOC_DAPM_INPUT("IN1L"), 808 SND_SOC_DAPM_INPUT("IN1R"), 809 SND_SOC_DAPM_INPUT("IN2L"), 810 SND_SOC_DAPM_INPUT("IN2R"), 811 SND_SOC_DAPM_INPUT("IN3L"), 812 SND_SOC_DAPM_INPUT("IN3R"), 813 SND_SOC_DAPM_INPUT("DMICDAT"), 814 815 SND_SOC_DAPM_OUTPUT("HPOUTL"), 816 SND_SOC_DAPM_OUTPUT("HPOUTR"), 817 SND_SOC_DAPM_OUTPUT("LINEOUTL"), 818 SND_SOC_DAPM_OUTPUT("LINEOUTR"), 819 SND_SOC_DAPM_OUTPUT("LOP"), 820 SND_SOC_DAPM_OUTPUT("LON"), 821 SND_SOC_DAPM_OUTPUT("ROP"), 822 SND_SOC_DAPM_OUTPUT("RON"), 823 824 SND_SOC_DAPM_SUPPLY("MICBIAS", WM8903_MIC_BIAS_CONTROL_0, 0, 0, NULL, 0), 825 826 SND_SOC_DAPM_MUX("Left Input Mux", SND_SOC_NOPM, 0, 0, &linput_mux), 827 SND_SOC_DAPM_MUX("Left Input Inverting Mux", SND_SOC_NOPM, 0, 0, 828 &linput_inv_mux), 829 SND_SOC_DAPM_MUX("Left Input Mode Mux", SND_SOC_NOPM, 0, 0, &linput_mode_mux), 830 831 SND_SOC_DAPM_MUX("Right Input Mux", SND_SOC_NOPM, 0, 0, &rinput_mux), 832 SND_SOC_DAPM_MUX("Right Input Inverting Mux", SND_SOC_NOPM, 0, 0, 833 &rinput_inv_mux), 834 SND_SOC_DAPM_MUX("Right Input Mode Mux", SND_SOC_NOPM, 0, 0, &rinput_mode_mux), 835 836 SND_SOC_DAPM_PGA("Left Input PGA", WM8903_POWER_MANAGEMENT_0, 1, 0, NULL, 0), 837 SND_SOC_DAPM_PGA("Right Input PGA", WM8903_POWER_MANAGEMENT_0, 0, 0, NULL, 0), 838 839 SND_SOC_DAPM_MUX("Left ADC Input", SND_SOC_NOPM, 0, 0, &adcinput_mux), 840 SND_SOC_DAPM_MUX("Right ADC Input", SND_SOC_NOPM, 0, 0, &adcinput_mux), 841 842 SND_SOC_DAPM_ADC("ADCL", NULL, WM8903_POWER_MANAGEMENT_6, 1, 0), 843 SND_SOC_DAPM_ADC("ADCR", NULL, WM8903_POWER_MANAGEMENT_6, 0, 0), 844 845 SND_SOC_DAPM_MUX("Left Capture Mux", SND_SOC_NOPM, 0, 0, &lcapture_mux), 846 SND_SOC_DAPM_MUX("Right Capture Mux", SND_SOC_NOPM, 0, 0, &rcapture_mux), 847 848 SND_SOC_DAPM_AIF_OUT("AIFTXL", "Left HiFi Capture", 0, SND_SOC_NOPM, 0, 0), 849 SND_SOC_DAPM_AIF_OUT("AIFTXR", "Right HiFi Capture", 0, SND_SOC_NOPM, 0, 0), 850 851 SND_SOC_DAPM_MUX("DACL Sidetone", SND_SOC_NOPM, 0, 0, &lsidetone_mux), 852 SND_SOC_DAPM_MUX("DACR Sidetone", SND_SOC_NOPM, 0, 0, &rsidetone_mux), 853 854 SND_SOC_DAPM_AIF_IN("AIFRXL", "Left Playback", 0, SND_SOC_NOPM, 0, 0), 855 SND_SOC_DAPM_AIF_IN("AIFRXR", "Right Playback", 0, SND_SOC_NOPM, 0, 0), 856 857 SND_SOC_DAPM_MUX("Left Playback Mux", SND_SOC_NOPM, 0, 0, &lplay_mux), 858 SND_SOC_DAPM_MUX("Right Playback Mux", SND_SOC_NOPM, 0, 0, &rplay_mux), 859 860 SND_SOC_DAPM_DAC("DACL", NULL, WM8903_POWER_MANAGEMENT_6, 3, 0), 861 SND_SOC_DAPM_DAC("DACR", NULL, WM8903_POWER_MANAGEMENT_6, 2, 0), 862 863 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8903_POWER_MANAGEMENT_1, 1, 0, 864 left_output_mixer, ARRAY_SIZE(left_output_mixer)), 865 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8903_POWER_MANAGEMENT_1, 0, 0, 866 right_output_mixer, ARRAY_SIZE(right_output_mixer)), 867 868 SND_SOC_DAPM_MIXER("Left Speaker Mixer", WM8903_POWER_MANAGEMENT_4, 1, 0, 869 left_speaker_mixer, ARRAY_SIZE(left_speaker_mixer)), 870 SND_SOC_DAPM_MIXER("Right Speaker Mixer", WM8903_POWER_MANAGEMENT_4, 0, 0, 871 right_speaker_mixer, ARRAY_SIZE(right_speaker_mixer)), 872 873 SND_SOC_DAPM_PGA_S("Left Headphone Output PGA", 0, WM8903_POWER_MANAGEMENT_2, 874 1, 0, NULL, 0), 875 SND_SOC_DAPM_PGA_S("Right Headphone Output PGA", 0, WM8903_POWER_MANAGEMENT_2, 876 0, 0, NULL, 0), 877 878 SND_SOC_DAPM_PGA_S("Left Line Output PGA", 0, WM8903_POWER_MANAGEMENT_3, 1, 0, 879 NULL, 0), 880 SND_SOC_DAPM_PGA_S("Right Line Output PGA", 0, WM8903_POWER_MANAGEMENT_3, 0, 0, 881 NULL, 0), 882 883 SND_SOC_DAPM_PGA_S("HPL_RMV_SHORT", 4, WM8903_ANALOGUE_HP_0, 7, 0, NULL, 0), 884 SND_SOC_DAPM_PGA_S("HPL_ENA_OUTP", 3, WM8903_ANALOGUE_HP_0, 6, 0, NULL, 0), 885 SND_SOC_DAPM_PGA_S("HPL_ENA_DLY", 2, WM8903_ANALOGUE_HP_0, 5, 0, NULL, 0), 886 SND_SOC_DAPM_PGA_S("HPL_ENA", 1, WM8903_ANALOGUE_HP_0, 4, 0, NULL, 0), 887 SND_SOC_DAPM_PGA_S("HPR_RMV_SHORT", 4, WM8903_ANALOGUE_HP_0, 3, 0, NULL, 0), 888 SND_SOC_DAPM_PGA_S("HPR_ENA_OUTP", 3, WM8903_ANALOGUE_HP_0, 2, 0, NULL, 0), 889 SND_SOC_DAPM_PGA_S("HPR_ENA_DLY", 2, WM8903_ANALOGUE_HP_0, 1, 0, NULL, 0), 890 SND_SOC_DAPM_PGA_S("HPR_ENA", 1, WM8903_ANALOGUE_HP_0, 0, 0, NULL, 0), 891 892 SND_SOC_DAPM_PGA_S("LINEOUTL_RMV_SHORT", 4, WM8903_ANALOGUE_LINEOUT_0, 7, 0, 893 NULL, 0), 894 SND_SOC_DAPM_PGA_S("LINEOUTL_ENA_OUTP", 3, WM8903_ANALOGUE_LINEOUT_0, 6, 0, 895 NULL, 0), 896 SND_SOC_DAPM_PGA_S("LINEOUTL_ENA_DLY", 2, WM8903_ANALOGUE_LINEOUT_0, 5, 0, 897 NULL, 0), 898 SND_SOC_DAPM_PGA_S("LINEOUTL_ENA", 1, WM8903_ANALOGUE_LINEOUT_0, 4, 0, 899 NULL, 0), 900 SND_SOC_DAPM_PGA_S("LINEOUTR_RMV_SHORT", 4, WM8903_ANALOGUE_LINEOUT_0, 3, 0, 901 NULL, 0), 902 SND_SOC_DAPM_PGA_S("LINEOUTR_ENA_OUTP", 3, WM8903_ANALOGUE_LINEOUT_0, 2, 0, 903 NULL, 0), 904 SND_SOC_DAPM_PGA_S("LINEOUTR_ENA_DLY", 2, WM8903_ANALOGUE_LINEOUT_0, 1, 0, 905 NULL, 0), 906 SND_SOC_DAPM_PGA_S("LINEOUTR_ENA", 1, WM8903_ANALOGUE_LINEOUT_0, 0, 0, 907 NULL, 0), 908 909 SND_SOC_DAPM_SUPPLY("DCS Master", WM8903_DC_SERVO_0, 4, 0, NULL, 0), 910 SND_SOC_DAPM_PGA_S("HPL_DCS", 3, SND_SOC_NOPM, 3, 0, wm8903_dcs_event, 911 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 912 SND_SOC_DAPM_PGA_S("HPR_DCS", 3, SND_SOC_NOPM, 2, 0, wm8903_dcs_event, 913 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 914 SND_SOC_DAPM_PGA_S("LINEOUTL_DCS", 3, SND_SOC_NOPM, 1, 0, wm8903_dcs_event, 915 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 916 SND_SOC_DAPM_PGA_S("LINEOUTR_DCS", 3, SND_SOC_NOPM, 0, 0, wm8903_dcs_event, 917 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 918 919 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8903_POWER_MANAGEMENT_5, 1, 0, 920 NULL, 0), 921 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8903_POWER_MANAGEMENT_5, 0, 0, 922 NULL, 0), 923 924 SND_SOC_DAPM_SUPPLY("Charge Pump", WM8903_CHARGE_PUMP_0, 0, 0, 925 wm8903_cp_event, SND_SOC_DAPM_POST_PMU), 926 SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8903_CLOCK_RATES_2, 1, 0, NULL, 0), 927 SND_SOC_DAPM_SUPPLY("CLK_SYS", WM8903_CLOCK_RATES_2, 2, 0, NULL, 0), 928 }; 929 930 static const struct snd_soc_dapm_route wm8903_intercon[] = { 931 932 { "CLK_DSP", NULL, "CLK_SYS" }, 933 { "MICBIAS", NULL, "CLK_SYS" }, 934 { "HPL_DCS", NULL, "CLK_SYS" }, 935 { "HPR_DCS", NULL, "CLK_SYS" }, 936 { "LINEOUTL_DCS", NULL, "CLK_SYS" }, 937 { "LINEOUTR_DCS", NULL, "CLK_SYS" }, 938 939 { "Left Input Mux", "IN1L", "IN1L" }, 940 { "Left Input Mux", "IN2L", "IN2L" }, 941 { "Left Input Mux", "IN3L", "IN3L" }, 942 943 { "Left Input Inverting Mux", "IN1L", "IN1L" }, 944 { "Left Input Inverting Mux", "IN2L", "IN2L" }, 945 { "Left Input Inverting Mux", "IN3L", "IN3L" }, 946 947 { "Right Input Mux", "IN1R", "IN1R" }, 948 { "Right Input Mux", "IN2R", "IN2R" }, 949 { "Right Input Mux", "IN3R", "IN3R" }, 950 951 { "Right Input Inverting Mux", "IN1R", "IN1R" }, 952 { "Right Input Inverting Mux", "IN2R", "IN2R" }, 953 { "Right Input Inverting Mux", "IN3R", "IN3R" }, 954 955 { "Left Input Mode Mux", "Single-Ended", "Left Input Inverting Mux" }, 956 { "Left Input Mode Mux", "Differential Line", 957 "Left Input Mux" }, 958 { "Left Input Mode Mux", "Differential Line", 959 "Left Input Inverting Mux" }, 960 { "Left Input Mode Mux", "Differential Mic", 961 "Left Input Mux" }, 962 { "Left Input Mode Mux", "Differential Mic", 963 "Left Input Inverting Mux" }, 964 965 { "Right Input Mode Mux", "Single-Ended", 966 "Right Input Inverting Mux" }, 967 { "Right Input Mode Mux", "Differential Line", 968 "Right Input Mux" }, 969 { "Right Input Mode Mux", "Differential Line", 970 "Right Input Inverting Mux" }, 971 { "Right Input Mode Mux", "Differential Mic", 972 "Right Input Mux" }, 973 { "Right Input Mode Mux", "Differential Mic", 974 "Right Input Inverting Mux" }, 975 976 { "Left Input PGA", NULL, "Left Input Mode Mux" }, 977 { "Right Input PGA", NULL, "Right Input Mode Mux" }, 978 979 { "Left ADC Input", "ADC", "Left Input PGA" }, 980 { "Left ADC Input", "DMIC", "DMICDAT" }, 981 { "Right ADC Input", "ADC", "Right Input PGA" }, 982 { "Right ADC Input", "DMIC", "DMICDAT" }, 983 984 { "Left Capture Mux", "Left", "ADCL" }, 985 { "Left Capture Mux", "Right", "ADCR" }, 986 987 { "Right Capture Mux", "Left", "ADCL" }, 988 { "Right Capture Mux", "Right", "ADCR" }, 989 990 { "AIFTXL", NULL, "Left Capture Mux" }, 991 { "AIFTXR", NULL, "Right Capture Mux" }, 992 993 { "ADCL", NULL, "Left ADC Input" }, 994 { "ADCL", NULL, "CLK_DSP" }, 995 { "ADCR", NULL, "Right ADC Input" }, 996 { "ADCR", NULL, "CLK_DSP" }, 997 998 { "Left Playback Mux", "Left", "AIFRXL" }, 999 { "Left Playback Mux", "Right", "AIFRXR" }, 1000 1001 { "Right Playback Mux", "Left", "AIFRXL" }, 1002 { "Right Playback Mux", "Right", "AIFRXR" }, 1003 1004 { "DACL Sidetone", "Left", "ADCL" }, 1005 { "DACL Sidetone", "Right", "ADCR" }, 1006 { "DACR Sidetone", "Left", "ADCL" }, 1007 { "DACR Sidetone", "Right", "ADCR" }, 1008 1009 { "DACL", NULL, "Left Playback Mux" }, 1010 { "DACL", NULL, "DACL Sidetone" }, 1011 { "DACL", NULL, "CLK_DSP" }, 1012 1013 { "DACR", NULL, "Right Playback Mux" }, 1014 { "DACR", NULL, "DACR Sidetone" }, 1015 { "DACR", NULL, "CLK_DSP" }, 1016 1017 { "Left Output Mixer", "Left Bypass Switch", "Left Input PGA" }, 1018 { "Left Output Mixer", "Right Bypass Switch", "Right Input PGA" }, 1019 { "Left Output Mixer", "DACL Switch", "DACL" }, 1020 { "Left Output Mixer", "DACR Switch", "DACR" }, 1021 1022 { "Right Output Mixer", "Left Bypass Switch", "Left Input PGA" }, 1023 { "Right Output Mixer", "Right Bypass Switch", "Right Input PGA" }, 1024 { "Right Output Mixer", "DACL Switch", "DACL" }, 1025 { "Right Output Mixer", "DACR Switch", "DACR" }, 1026 1027 { "Left Speaker Mixer", "Left Bypass Switch", "Left Input PGA" }, 1028 { "Left Speaker Mixer", "Right Bypass Switch", "Right Input PGA" }, 1029 { "Left Speaker Mixer", "DACL Switch", "DACL" }, 1030 { "Left Speaker Mixer", "DACR Switch", "DACR" }, 1031 1032 { "Right Speaker Mixer", "Left Bypass Switch", "Left Input PGA" }, 1033 { "Right Speaker Mixer", "Right Bypass Switch", "Right Input PGA" }, 1034 { "Right Speaker Mixer", "DACL Switch", "DACL" }, 1035 { "Right Speaker Mixer", "DACR Switch", "DACR" }, 1036 1037 { "Left Line Output PGA", NULL, "Left Output Mixer" }, 1038 { "Right Line Output PGA", NULL, "Right Output Mixer" }, 1039 1040 { "Left Headphone Output PGA", NULL, "Left Output Mixer" }, 1041 { "Right Headphone Output PGA", NULL, "Right Output Mixer" }, 1042 1043 { "Left Speaker PGA", NULL, "Left Speaker Mixer" }, 1044 { "Right Speaker PGA", NULL, "Right Speaker Mixer" }, 1045 1046 { "HPL_ENA", NULL, "Left Headphone Output PGA" }, 1047 { "HPR_ENA", NULL, "Right Headphone Output PGA" }, 1048 { "HPL_ENA_DLY", NULL, "HPL_ENA" }, 1049 { "HPR_ENA_DLY", NULL, "HPR_ENA" }, 1050 { "LINEOUTL_ENA", NULL, "Left Line Output PGA" }, 1051 { "LINEOUTR_ENA", NULL, "Right Line Output PGA" }, 1052 { "LINEOUTL_ENA_DLY", NULL, "LINEOUTL_ENA" }, 1053 { "LINEOUTR_ENA_DLY", NULL, "LINEOUTR_ENA" }, 1054 1055 { "HPL_DCS", NULL, "DCS Master" }, 1056 { "HPR_DCS", NULL, "DCS Master" }, 1057 { "LINEOUTL_DCS", NULL, "DCS Master" }, 1058 { "LINEOUTR_DCS", NULL, "DCS Master" }, 1059 1060 { "HPL_DCS", NULL, "HPL_ENA_DLY" }, 1061 { "HPR_DCS", NULL, "HPR_ENA_DLY" }, 1062 { "LINEOUTL_DCS", NULL, "LINEOUTL_ENA_DLY" }, 1063 { "LINEOUTR_DCS", NULL, "LINEOUTR_ENA_DLY" }, 1064 1065 { "HPL_ENA_OUTP", NULL, "HPL_DCS" }, 1066 { "HPR_ENA_OUTP", NULL, "HPR_DCS" }, 1067 { "LINEOUTL_ENA_OUTP", NULL, "LINEOUTL_DCS" }, 1068 { "LINEOUTR_ENA_OUTP", NULL, "LINEOUTR_DCS" }, 1069 1070 { "HPL_RMV_SHORT", NULL, "HPL_ENA_OUTP" }, 1071 { "HPR_RMV_SHORT", NULL, "HPR_ENA_OUTP" }, 1072 { "LINEOUTL_RMV_SHORT", NULL, "LINEOUTL_ENA_OUTP" }, 1073 { "LINEOUTR_RMV_SHORT", NULL, "LINEOUTR_ENA_OUTP" }, 1074 1075 { "HPOUTL", NULL, "HPL_RMV_SHORT" }, 1076 { "HPOUTR", NULL, "HPR_RMV_SHORT" }, 1077 { "LINEOUTL", NULL, "LINEOUTL_RMV_SHORT" }, 1078 { "LINEOUTR", NULL, "LINEOUTR_RMV_SHORT" }, 1079 1080 { "LOP", NULL, "Left Speaker PGA" }, 1081 { "LON", NULL, "Left Speaker PGA" }, 1082 1083 { "ROP", NULL, "Right Speaker PGA" }, 1084 { "RON", NULL, "Right Speaker PGA" }, 1085 1086 { "Left Headphone Output PGA", NULL, "Charge Pump" }, 1087 { "Right Headphone Output PGA", NULL, "Charge Pump" }, 1088 { "Left Line Output PGA", NULL, "Charge Pump" }, 1089 { "Right Line Output PGA", NULL, "Charge Pump" }, 1090 }; 1091 1092 static int wm8903_set_bias_level(struct snd_soc_codec *codec, 1093 enum snd_soc_bias_level level) 1094 { 1095 switch (level) { 1096 case SND_SOC_BIAS_ON: 1097 break; 1098 1099 case SND_SOC_BIAS_PREPARE: 1100 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0, 1101 WM8903_VMID_RES_MASK, 1102 WM8903_VMID_RES_50K); 1103 break; 1104 1105 case SND_SOC_BIAS_STANDBY: 1106 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { 1107 snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0, 1108 WM8903_POBCTRL | WM8903_ISEL_MASK | 1109 WM8903_STARTUP_BIAS_ENA | 1110 WM8903_BIAS_ENA, 1111 WM8903_POBCTRL | 1112 (2 << WM8903_ISEL_SHIFT) | 1113 WM8903_STARTUP_BIAS_ENA); 1114 1115 snd_soc_update_bits(codec, 1116 WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0, 1117 WM8903_SPK_DISCHARGE, 1118 WM8903_SPK_DISCHARGE); 1119 1120 msleep(33); 1121 1122 snd_soc_update_bits(codec, WM8903_POWER_MANAGEMENT_5, 1123 WM8903_SPKL_ENA | WM8903_SPKR_ENA, 1124 WM8903_SPKL_ENA | WM8903_SPKR_ENA); 1125 1126 snd_soc_update_bits(codec, 1127 WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0, 1128 WM8903_SPK_DISCHARGE, 0); 1129 1130 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0, 1131 WM8903_VMID_TIE_ENA | 1132 WM8903_BUFIO_ENA | 1133 WM8903_VMID_IO_ENA | 1134 WM8903_VMID_SOFT_MASK | 1135 WM8903_VMID_RES_MASK | 1136 WM8903_VMID_BUF_ENA, 1137 WM8903_VMID_TIE_ENA | 1138 WM8903_BUFIO_ENA | 1139 WM8903_VMID_IO_ENA | 1140 (2 << WM8903_VMID_SOFT_SHIFT) | 1141 WM8903_VMID_RES_250K | 1142 WM8903_VMID_BUF_ENA); 1143 1144 msleep(129); 1145 1146 snd_soc_update_bits(codec, WM8903_POWER_MANAGEMENT_5, 1147 WM8903_SPKL_ENA | WM8903_SPKR_ENA, 1148 0); 1149 1150 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0, 1151 WM8903_VMID_SOFT_MASK, 0); 1152 1153 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0, 1154 WM8903_VMID_RES_MASK, 1155 WM8903_VMID_RES_50K); 1156 1157 snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0, 1158 WM8903_BIAS_ENA | WM8903_POBCTRL, 1159 WM8903_BIAS_ENA); 1160 1161 /* By default no bypass paths are enabled so 1162 * enable Class W support. 1163 */ 1164 dev_dbg(codec->dev, "Enabling Class W\n"); 1165 snd_soc_update_bits(codec, WM8903_CLASS_W_0, 1166 WM8903_CP_DYN_FREQ | 1167 WM8903_CP_DYN_V, 1168 WM8903_CP_DYN_FREQ | 1169 WM8903_CP_DYN_V); 1170 } 1171 1172 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0, 1173 WM8903_VMID_RES_MASK, 1174 WM8903_VMID_RES_250K); 1175 break; 1176 1177 case SND_SOC_BIAS_OFF: 1178 snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0, 1179 WM8903_BIAS_ENA, 0); 1180 1181 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0, 1182 WM8903_VMID_SOFT_MASK, 1183 2 << WM8903_VMID_SOFT_SHIFT); 1184 1185 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0, 1186 WM8903_VMID_BUF_ENA, 0); 1187 1188 msleep(290); 1189 1190 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0, 1191 WM8903_VMID_TIE_ENA | WM8903_BUFIO_ENA | 1192 WM8903_VMID_IO_ENA | WM8903_VMID_RES_MASK | 1193 WM8903_VMID_SOFT_MASK | 1194 WM8903_VMID_BUF_ENA, 0); 1195 1196 snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0, 1197 WM8903_STARTUP_BIAS_ENA, 0); 1198 break; 1199 } 1200 1201 codec->dapm.bias_level = level; 1202 1203 return 0; 1204 } 1205 1206 static int wm8903_set_dai_sysclk(struct snd_soc_dai *codec_dai, 1207 int clk_id, unsigned int freq, int dir) 1208 { 1209 struct snd_soc_codec *codec = codec_dai->codec; 1210 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec); 1211 1212 wm8903->sysclk = freq; 1213 1214 return 0; 1215 } 1216 1217 static int wm8903_set_dai_fmt(struct snd_soc_dai *codec_dai, 1218 unsigned int fmt) 1219 { 1220 struct snd_soc_codec *codec = codec_dai->codec; 1221 u16 aif1 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_1); 1222 1223 aif1 &= ~(WM8903_LRCLK_DIR | WM8903_BCLK_DIR | WM8903_AIF_FMT_MASK | 1224 WM8903_AIF_LRCLK_INV | WM8903_AIF_BCLK_INV); 1225 1226 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 1227 case SND_SOC_DAIFMT_CBS_CFS: 1228 break; 1229 case SND_SOC_DAIFMT_CBS_CFM: 1230 aif1 |= WM8903_LRCLK_DIR; 1231 break; 1232 case SND_SOC_DAIFMT_CBM_CFM: 1233 aif1 |= WM8903_LRCLK_DIR | WM8903_BCLK_DIR; 1234 break; 1235 case SND_SOC_DAIFMT_CBM_CFS: 1236 aif1 |= WM8903_BCLK_DIR; 1237 break; 1238 default: 1239 return -EINVAL; 1240 } 1241 1242 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 1243 case SND_SOC_DAIFMT_DSP_A: 1244 aif1 |= 0x3; 1245 break; 1246 case SND_SOC_DAIFMT_DSP_B: 1247 aif1 |= 0x3 | WM8903_AIF_LRCLK_INV; 1248 break; 1249 case SND_SOC_DAIFMT_I2S: 1250 aif1 |= 0x2; 1251 break; 1252 case SND_SOC_DAIFMT_RIGHT_J: 1253 aif1 |= 0x1; 1254 break; 1255 case SND_SOC_DAIFMT_LEFT_J: 1256 break; 1257 default: 1258 return -EINVAL; 1259 } 1260 1261 /* Clock inversion */ 1262 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 1263 case SND_SOC_DAIFMT_DSP_A: 1264 case SND_SOC_DAIFMT_DSP_B: 1265 /* frame inversion not valid for DSP modes */ 1266 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 1267 case SND_SOC_DAIFMT_NB_NF: 1268 break; 1269 case SND_SOC_DAIFMT_IB_NF: 1270 aif1 |= WM8903_AIF_BCLK_INV; 1271 break; 1272 default: 1273 return -EINVAL; 1274 } 1275 break; 1276 case SND_SOC_DAIFMT_I2S: 1277 case SND_SOC_DAIFMT_RIGHT_J: 1278 case SND_SOC_DAIFMT_LEFT_J: 1279 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 1280 case SND_SOC_DAIFMT_NB_NF: 1281 break; 1282 case SND_SOC_DAIFMT_IB_IF: 1283 aif1 |= WM8903_AIF_BCLK_INV | WM8903_AIF_LRCLK_INV; 1284 break; 1285 case SND_SOC_DAIFMT_IB_NF: 1286 aif1 |= WM8903_AIF_BCLK_INV; 1287 break; 1288 case SND_SOC_DAIFMT_NB_IF: 1289 aif1 |= WM8903_AIF_LRCLK_INV; 1290 break; 1291 default: 1292 return -EINVAL; 1293 } 1294 break; 1295 default: 1296 return -EINVAL; 1297 } 1298 1299 snd_soc_write(codec, WM8903_AUDIO_INTERFACE_1, aif1); 1300 1301 return 0; 1302 } 1303 1304 static int wm8903_digital_mute(struct snd_soc_dai *codec_dai, int mute) 1305 { 1306 struct snd_soc_codec *codec = codec_dai->codec; 1307 u16 reg; 1308 1309 reg = snd_soc_read(codec, WM8903_DAC_DIGITAL_1); 1310 1311 if (mute) 1312 reg |= WM8903_DAC_MUTE; 1313 else 1314 reg &= ~WM8903_DAC_MUTE; 1315 1316 snd_soc_write(codec, WM8903_DAC_DIGITAL_1, reg); 1317 1318 return 0; 1319 } 1320 1321 /* Lookup table for CLK_SYS/fs ratio. 256fs or more is recommended 1322 * for optimal performance so we list the lower rates first and match 1323 * on the last match we find. */ 1324 static struct { 1325 int div; 1326 int rate; 1327 int mode; 1328 int mclk_div; 1329 } clk_sys_ratios[] = { 1330 { 64, 0x0, 0x0, 1 }, 1331 { 68, 0x0, 0x1, 1 }, 1332 { 125, 0x0, 0x2, 1 }, 1333 { 128, 0x1, 0x0, 1 }, 1334 { 136, 0x1, 0x1, 1 }, 1335 { 192, 0x2, 0x0, 1 }, 1336 { 204, 0x2, 0x1, 1 }, 1337 1338 { 64, 0x0, 0x0, 2 }, 1339 { 68, 0x0, 0x1, 2 }, 1340 { 125, 0x0, 0x2, 2 }, 1341 { 128, 0x1, 0x0, 2 }, 1342 { 136, 0x1, 0x1, 2 }, 1343 { 192, 0x2, 0x0, 2 }, 1344 { 204, 0x2, 0x1, 2 }, 1345 1346 { 250, 0x2, 0x2, 1 }, 1347 { 256, 0x3, 0x0, 1 }, 1348 { 272, 0x3, 0x1, 1 }, 1349 { 384, 0x4, 0x0, 1 }, 1350 { 408, 0x4, 0x1, 1 }, 1351 { 375, 0x4, 0x2, 1 }, 1352 { 512, 0x5, 0x0, 1 }, 1353 { 544, 0x5, 0x1, 1 }, 1354 { 500, 0x5, 0x2, 1 }, 1355 { 768, 0x6, 0x0, 1 }, 1356 { 816, 0x6, 0x1, 1 }, 1357 { 750, 0x6, 0x2, 1 }, 1358 { 1024, 0x7, 0x0, 1 }, 1359 { 1088, 0x7, 0x1, 1 }, 1360 { 1000, 0x7, 0x2, 1 }, 1361 { 1408, 0x8, 0x0, 1 }, 1362 { 1496, 0x8, 0x1, 1 }, 1363 { 1536, 0x9, 0x0, 1 }, 1364 { 1632, 0x9, 0x1, 1 }, 1365 { 1500, 0x9, 0x2, 1 }, 1366 1367 { 250, 0x2, 0x2, 2 }, 1368 { 256, 0x3, 0x0, 2 }, 1369 { 272, 0x3, 0x1, 2 }, 1370 { 384, 0x4, 0x0, 2 }, 1371 { 408, 0x4, 0x1, 2 }, 1372 { 375, 0x4, 0x2, 2 }, 1373 { 512, 0x5, 0x0, 2 }, 1374 { 544, 0x5, 0x1, 2 }, 1375 { 500, 0x5, 0x2, 2 }, 1376 { 768, 0x6, 0x0, 2 }, 1377 { 816, 0x6, 0x1, 2 }, 1378 { 750, 0x6, 0x2, 2 }, 1379 { 1024, 0x7, 0x0, 2 }, 1380 { 1088, 0x7, 0x1, 2 }, 1381 { 1000, 0x7, 0x2, 2 }, 1382 { 1408, 0x8, 0x0, 2 }, 1383 { 1496, 0x8, 0x1, 2 }, 1384 { 1536, 0x9, 0x0, 2 }, 1385 { 1632, 0x9, 0x1, 2 }, 1386 { 1500, 0x9, 0x2, 2 }, 1387 }; 1388 1389 /* CLK_SYS/BCLK ratios - multiplied by 10 due to .5s */ 1390 static struct { 1391 int ratio; 1392 int div; 1393 } bclk_divs[] = { 1394 { 10, 0 }, 1395 { 20, 2 }, 1396 { 30, 3 }, 1397 { 40, 4 }, 1398 { 50, 5 }, 1399 { 60, 7 }, 1400 { 80, 8 }, 1401 { 100, 9 }, 1402 { 120, 11 }, 1403 { 160, 12 }, 1404 { 200, 13 }, 1405 { 220, 14 }, 1406 { 240, 15 }, 1407 { 300, 17 }, 1408 { 320, 18 }, 1409 { 440, 19 }, 1410 { 480, 20 }, 1411 }; 1412 1413 /* Sample rates for DSP */ 1414 static struct { 1415 int rate; 1416 int value; 1417 } sample_rates[] = { 1418 { 8000, 0 }, 1419 { 11025, 1 }, 1420 { 12000, 2 }, 1421 { 16000, 3 }, 1422 { 22050, 4 }, 1423 { 24000, 5 }, 1424 { 32000, 6 }, 1425 { 44100, 7 }, 1426 { 48000, 8 }, 1427 { 88200, 9 }, 1428 { 96000, 10 }, 1429 { 0, 0 }, 1430 }; 1431 1432 static int wm8903_hw_params(struct snd_pcm_substream *substream, 1433 struct snd_pcm_hw_params *params, 1434 struct snd_soc_dai *dai) 1435 { 1436 struct snd_soc_codec *codec = dai->codec; 1437 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec); 1438 int fs = params_rate(params); 1439 int bclk; 1440 int bclk_div; 1441 int i; 1442 int dsp_config; 1443 int clk_config; 1444 int best_val; 1445 int cur_val; 1446 int clk_sys; 1447 1448 u16 aif1 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_1); 1449 u16 aif2 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_2); 1450 u16 aif3 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_3); 1451 u16 clock0 = snd_soc_read(codec, WM8903_CLOCK_RATES_0); 1452 u16 clock1 = snd_soc_read(codec, WM8903_CLOCK_RATES_1); 1453 u16 dac_digital1 = snd_soc_read(codec, WM8903_DAC_DIGITAL_1); 1454 1455 /* Enable sloping stopband filter for low sample rates */ 1456 if (fs <= 24000) 1457 dac_digital1 |= WM8903_DAC_SB_FILT; 1458 else 1459 dac_digital1 &= ~WM8903_DAC_SB_FILT; 1460 1461 /* Configure sample rate logic for DSP - choose nearest rate */ 1462 dsp_config = 0; 1463 best_val = abs(sample_rates[dsp_config].rate - fs); 1464 for (i = 1; i < ARRAY_SIZE(sample_rates); i++) { 1465 cur_val = abs(sample_rates[i].rate - fs); 1466 if (cur_val <= best_val) { 1467 dsp_config = i; 1468 best_val = cur_val; 1469 } 1470 } 1471 1472 dev_dbg(codec->dev, "DSP fs = %dHz\n", sample_rates[dsp_config].rate); 1473 clock1 &= ~WM8903_SAMPLE_RATE_MASK; 1474 clock1 |= sample_rates[dsp_config].value; 1475 1476 aif1 &= ~WM8903_AIF_WL_MASK; 1477 bclk = 2 * fs; 1478 switch (params_format(params)) { 1479 case SNDRV_PCM_FORMAT_S16_LE: 1480 bclk *= 16; 1481 break; 1482 case SNDRV_PCM_FORMAT_S20_3LE: 1483 bclk *= 20; 1484 aif1 |= 0x4; 1485 break; 1486 case SNDRV_PCM_FORMAT_S24_LE: 1487 bclk *= 24; 1488 aif1 |= 0x8; 1489 break; 1490 case SNDRV_PCM_FORMAT_S32_LE: 1491 bclk *= 32; 1492 aif1 |= 0xc; 1493 break; 1494 default: 1495 return -EINVAL; 1496 } 1497 1498 dev_dbg(codec->dev, "MCLK = %dHz, target sample rate = %dHz\n", 1499 wm8903->sysclk, fs); 1500 1501 /* We may not have an MCLK which allows us to generate exactly 1502 * the clock we want, particularly with USB derived inputs, so 1503 * approximate. 1504 */ 1505 clk_config = 0; 1506 best_val = abs((wm8903->sysclk / 1507 (clk_sys_ratios[0].mclk_div * 1508 clk_sys_ratios[0].div)) - fs); 1509 for (i = 1; i < ARRAY_SIZE(clk_sys_ratios); i++) { 1510 cur_val = abs((wm8903->sysclk / 1511 (clk_sys_ratios[i].mclk_div * 1512 clk_sys_ratios[i].div)) - fs); 1513 1514 if (cur_val <= best_val) { 1515 clk_config = i; 1516 best_val = cur_val; 1517 } 1518 } 1519 1520 if (clk_sys_ratios[clk_config].mclk_div == 2) { 1521 clock0 |= WM8903_MCLKDIV2; 1522 clk_sys = wm8903->sysclk / 2; 1523 } else { 1524 clock0 &= ~WM8903_MCLKDIV2; 1525 clk_sys = wm8903->sysclk; 1526 } 1527 1528 clock1 &= ~(WM8903_CLK_SYS_RATE_MASK | 1529 WM8903_CLK_SYS_MODE_MASK); 1530 clock1 |= clk_sys_ratios[clk_config].rate << WM8903_CLK_SYS_RATE_SHIFT; 1531 clock1 |= clk_sys_ratios[clk_config].mode << WM8903_CLK_SYS_MODE_SHIFT; 1532 1533 dev_dbg(codec->dev, "CLK_SYS_RATE=%x, CLK_SYS_MODE=%x div=%d\n", 1534 clk_sys_ratios[clk_config].rate, 1535 clk_sys_ratios[clk_config].mode, 1536 clk_sys_ratios[clk_config].div); 1537 1538 dev_dbg(codec->dev, "Actual CLK_SYS = %dHz\n", clk_sys); 1539 1540 /* We may not get quite the right frequency if using 1541 * approximate clocks so look for the closest match that is 1542 * higher than the target (we need to ensure that there enough 1543 * BCLKs to clock out the samples). 1544 */ 1545 bclk_div = 0; 1546 best_val = ((clk_sys * 10) / bclk_divs[0].ratio) - bclk; 1547 i = 1; 1548 while (i < ARRAY_SIZE(bclk_divs)) { 1549 cur_val = ((clk_sys * 10) / bclk_divs[i].ratio) - bclk; 1550 if (cur_val < 0) /* BCLK table is sorted */ 1551 break; 1552 bclk_div = i; 1553 best_val = cur_val; 1554 i++; 1555 } 1556 1557 aif2 &= ~WM8903_BCLK_DIV_MASK; 1558 aif3 &= ~WM8903_LRCLK_RATE_MASK; 1559 1560 dev_dbg(codec->dev, "BCLK ratio %d for %dHz - actual BCLK = %dHz\n", 1561 bclk_divs[bclk_div].ratio / 10, bclk, 1562 (clk_sys * 10) / bclk_divs[bclk_div].ratio); 1563 1564 aif2 |= bclk_divs[bclk_div].div; 1565 aif3 |= bclk / fs; 1566 1567 wm8903->fs = params_rate(params); 1568 wm8903_set_deemph(codec); 1569 1570 snd_soc_write(codec, WM8903_CLOCK_RATES_0, clock0); 1571 snd_soc_write(codec, WM8903_CLOCK_RATES_1, clock1); 1572 snd_soc_write(codec, WM8903_AUDIO_INTERFACE_1, aif1); 1573 snd_soc_write(codec, WM8903_AUDIO_INTERFACE_2, aif2); 1574 snd_soc_write(codec, WM8903_AUDIO_INTERFACE_3, aif3); 1575 snd_soc_write(codec, WM8903_DAC_DIGITAL_1, dac_digital1); 1576 1577 return 0; 1578 } 1579 1580 /** 1581 * wm8903_mic_detect - Enable microphone detection via the WM8903 IRQ 1582 * 1583 * @codec: WM8903 codec 1584 * @jack: jack to report detection events on 1585 * @det: value to report for presence detection 1586 * @shrt: value to report for short detection 1587 * 1588 * Enable microphone detection via IRQ on the WM8903. If GPIOs are 1589 * being used to bring out signals to the processor then only platform 1590 * data configuration is needed for WM8903 and processor GPIOs should 1591 * be configured using snd_soc_jack_add_gpios() instead. 1592 * 1593 * The current threasholds for detection should be configured using 1594 * micdet_cfg in the platform data. Using this function will force on 1595 * the microphone bias for the device. 1596 */ 1597 int wm8903_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack, 1598 int det, int shrt) 1599 { 1600 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec); 1601 int irq_mask = WM8903_MICDET_EINT | WM8903_MICSHRT_EINT; 1602 1603 dev_dbg(codec->dev, "Enabling microphone detection: %x %x\n", 1604 det, shrt); 1605 1606 /* Store the configuration */ 1607 wm8903->mic_jack = jack; 1608 wm8903->mic_det = det; 1609 wm8903->mic_short = shrt; 1610 1611 /* Enable interrupts we've got a report configured for */ 1612 if (det) 1613 irq_mask &= ~WM8903_MICDET_EINT; 1614 if (shrt) 1615 irq_mask &= ~WM8903_MICSHRT_EINT; 1616 1617 snd_soc_update_bits(codec, WM8903_INTERRUPT_STATUS_1_MASK, 1618 WM8903_MICDET_EINT | WM8903_MICSHRT_EINT, 1619 irq_mask); 1620 1621 if (det || shrt) { 1622 /* Enable mic detection, this may not have been set through 1623 * platform data (eg, if the defaults are OK). */ 1624 snd_soc_update_bits(codec, WM8903_WRITE_SEQUENCER_0, 1625 WM8903_WSEQ_ENA, WM8903_WSEQ_ENA); 1626 snd_soc_update_bits(codec, WM8903_MIC_BIAS_CONTROL_0, 1627 WM8903_MICDET_ENA, WM8903_MICDET_ENA); 1628 } else { 1629 snd_soc_update_bits(codec, WM8903_MIC_BIAS_CONTROL_0, 1630 WM8903_MICDET_ENA, 0); 1631 } 1632 1633 return 0; 1634 } 1635 EXPORT_SYMBOL_GPL(wm8903_mic_detect); 1636 1637 static irqreturn_t wm8903_irq(int irq, void *data) 1638 { 1639 struct wm8903_priv *wm8903 = data; 1640 int mic_report, ret; 1641 unsigned int int_val, mask, int_pol; 1642 1643 ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_STATUS_1_MASK, 1644 &mask); 1645 if (ret != 0) { 1646 dev_err(wm8903->dev, "Failed to read IRQ mask: %d\n", ret); 1647 return IRQ_NONE; 1648 } 1649 1650 ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_STATUS_1, &int_val); 1651 if (ret != 0) { 1652 dev_err(wm8903->dev, "Failed to read IRQ status: %d\n", ret); 1653 return IRQ_NONE; 1654 } 1655 1656 int_val &= ~mask; 1657 1658 if (int_val & WM8903_WSEQ_BUSY_EINT) { 1659 dev_warn(wm8903->dev, "Write sequencer done\n"); 1660 } 1661 1662 /* 1663 * The rest is microphone jack detection. We need to manually 1664 * invert the polarity of the interrupt after each event - to 1665 * simplify the code keep track of the last state we reported 1666 * and just invert the relevant bits in both the report and 1667 * the polarity register. 1668 */ 1669 mic_report = wm8903->mic_last_report; 1670 ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_POLARITY_1, 1671 &int_pol); 1672 if (ret != 0) { 1673 dev_err(wm8903->dev, "Failed to read interrupt polarity: %d\n", 1674 ret); 1675 return IRQ_HANDLED; 1676 } 1677 1678 #ifndef CONFIG_SND_SOC_WM8903_MODULE 1679 if (int_val & (WM8903_MICSHRT_EINT | WM8903_MICDET_EINT)) 1680 trace_snd_soc_jack_irq(dev_name(wm8903->dev)); 1681 #endif 1682 1683 if (int_val & WM8903_MICSHRT_EINT) { 1684 dev_dbg(wm8903->dev, "Microphone short (pol=%x)\n", int_pol); 1685 1686 mic_report ^= wm8903->mic_short; 1687 int_pol ^= WM8903_MICSHRT_INV; 1688 } 1689 1690 if (int_val & WM8903_MICDET_EINT) { 1691 dev_dbg(wm8903->dev, "Microphone detect (pol=%x)\n", int_pol); 1692 1693 mic_report ^= wm8903->mic_det; 1694 int_pol ^= WM8903_MICDET_INV; 1695 1696 msleep(wm8903->mic_delay); 1697 } 1698 1699 regmap_update_bits(wm8903->regmap, WM8903_INTERRUPT_POLARITY_1, 1700 WM8903_MICSHRT_INV | WM8903_MICDET_INV, int_pol); 1701 1702 snd_soc_jack_report(wm8903->mic_jack, mic_report, 1703 wm8903->mic_short | wm8903->mic_det); 1704 1705 wm8903->mic_last_report = mic_report; 1706 1707 return IRQ_HANDLED; 1708 } 1709 1710 #define WM8903_PLAYBACK_RATES (SNDRV_PCM_RATE_8000 |\ 1711 SNDRV_PCM_RATE_11025 | \ 1712 SNDRV_PCM_RATE_16000 | \ 1713 SNDRV_PCM_RATE_22050 | \ 1714 SNDRV_PCM_RATE_32000 | \ 1715 SNDRV_PCM_RATE_44100 | \ 1716 SNDRV_PCM_RATE_48000 | \ 1717 SNDRV_PCM_RATE_88200 | \ 1718 SNDRV_PCM_RATE_96000) 1719 1720 #define WM8903_CAPTURE_RATES (SNDRV_PCM_RATE_8000 |\ 1721 SNDRV_PCM_RATE_11025 | \ 1722 SNDRV_PCM_RATE_16000 | \ 1723 SNDRV_PCM_RATE_22050 | \ 1724 SNDRV_PCM_RATE_32000 | \ 1725 SNDRV_PCM_RATE_44100 | \ 1726 SNDRV_PCM_RATE_48000) 1727 1728 #define WM8903_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\ 1729 SNDRV_PCM_FMTBIT_S20_3LE |\ 1730 SNDRV_PCM_FMTBIT_S24_LE) 1731 1732 static const struct snd_soc_dai_ops wm8903_dai_ops = { 1733 .hw_params = wm8903_hw_params, 1734 .digital_mute = wm8903_digital_mute, 1735 .set_fmt = wm8903_set_dai_fmt, 1736 .set_sysclk = wm8903_set_dai_sysclk, 1737 }; 1738 1739 static struct snd_soc_dai_driver wm8903_dai = { 1740 .name = "wm8903-hifi", 1741 .playback = { 1742 .stream_name = "Playback", 1743 .channels_min = 2, 1744 .channels_max = 2, 1745 .rates = WM8903_PLAYBACK_RATES, 1746 .formats = WM8903_FORMATS, 1747 }, 1748 .capture = { 1749 .stream_name = "Capture", 1750 .channels_min = 2, 1751 .channels_max = 2, 1752 .rates = WM8903_CAPTURE_RATES, 1753 .formats = WM8903_FORMATS, 1754 }, 1755 .ops = &wm8903_dai_ops, 1756 .symmetric_rates = 1, 1757 }; 1758 1759 static int wm8903_suspend(struct snd_soc_codec *codec) 1760 { 1761 wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF); 1762 1763 return 0; 1764 } 1765 1766 static int wm8903_resume(struct snd_soc_codec *codec) 1767 { 1768 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec); 1769 1770 regcache_sync(wm8903->regmap); 1771 1772 wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 1773 1774 return 0; 1775 } 1776 1777 #ifdef CONFIG_GPIOLIB 1778 static inline struct wm8903_priv *gpio_to_wm8903(struct gpio_chip *chip) 1779 { 1780 return container_of(chip, struct wm8903_priv, gpio_chip); 1781 } 1782 1783 static int wm8903_gpio_request(struct gpio_chip *chip, unsigned offset) 1784 { 1785 if (offset >= WM8903_NUM_GPIO) 1786 return -EINVAL; 1787 1788 return 0; 1789 } 1790 1791 static int wm8903_gpio_direction_in(struct gpio_chip *chip, unsigned offset) 1792 { 1793 struct wm8903_priv *wm8903 = gpio_to_wm8903(chip); 1794 unsigned int mask, val; 1795 int ret; 1796 1797 mask = WM8903_GP1_FN_MASK | WM8903_GP1_DIR_MASK; 1798 val = (WM8903_GPn_FN_GPIO_INPUT << WM8903_GP1_FN_SHIFT) | 1799 WM8903_GP1_DIR; 1800 1801 ret = regmap_update_bits(wm8903->regmap, 1802 WM8903_GPIO_CONTROL_1 + offset, mask, val); 1803 if (ret < 0) 1804 return ret; 1805 1806 return 0; 1807 } 1808 1809 static int wm8903_gpio_get(struct gpio_chip *chip, unsigned offset) 1810 { 1811 struct wm8903_priv *wm8903 = gpio_to_wm8903(chip); 1812 unsigned int reg; 1813 1814 regmap_read(wm8903->regmap, WM8903_GPIO_CONTROL_1 + offset, ®); 1815 1816 return (reg & WM8903_GP1_LVL_MASK) >> WM8903_GP1_LVL_SHIFT; 1817 } 1818 1819 static int wm8903_gpio_direction_out(struct gpio_chip *chip, 1820 unsigned offset, int value) 1821 { 1822 struct wm8903_priv *wm8903 = gpio_to_wm8903(chip); 1823 unsigned int mask, val; 1824 int ret; 1825 1826 mask = WM8903_GP1_FN_MASK | WM8903_GP1_DIR_MASK | WM8903_GP1_LVL_MASK; 1827 val = (WM8903_GPn_FN_GPIO_OUTPUT << WM8903_GP1_FN_SHIFT) | 1828 (value << WM8903_GP2_LVL_SHIFT); 1829 1830 ret = regmap_update_bits(wm8903->regmap, 1831 WM8903_GPIO_CONTROL_1 + offset, mask, val); 1832 if (ret < 0) 1833 return ret; 1834 1835 return 0; 1836 } 1837 1838 static void wm8903_gpio_set(struct gpio_chip *chip, unsigned offset, int value) 1839 { 1840 struct wm8903_priv *wm8903 = gpio_to_wm8903(chip); 1841 1842 regmap_update_bits(wm8903->regmap, WM8903_GPIO_CONTROL_1 + offset, 1843 WM8903_GP1_LVL_MASK, 1844 !!value << WM8903_GP1_LVL_SHIFT); 1845 } 1846 1847 static struct gpio_chip wm8903_template_chip = { 1848 .label = "wm8903", 1849 .owner = THIS_MODULE, 1850 .request = wm8903_gpio_request, 1851 .direction_input = wm8903_gpio_direction_in, 1852 .get = wm8903_gpio_get, 1853 .direction_output = wm8903_gpio_direction_out, 1854 .set = wm8903_gpio_set, 1855 .can_sleep = 1, 1856 }; 1857 1858 static void wm8903_init_gpio(struct wm8903_priv *wm8903) 1859 { 1860 struct wm8903_platform_data *pdata = wm8903->pdata; 1861 int ret; 1862 1863 wm8903->gpio_chip = wm8903_template_chip; 1864 wm8903->gpio_chip.ngpio = WM8903_NUM_GPIO; 1865 wm8903->gpio_chip.dev = wm8903->dev; 1866 1867 if (pdata->gpio_base) 1868 wm8903->gpio_chip.base = pdata->gpio_base; 1869 else 1870 wm8903->gpio_chip.base = -1; 1871 1872 ret = gpiochip_add(&wm8903->gpio_chip); 1873 if (ret != 0) 1874 dev_err(wm8903->dev, "Failed to add GPIOs: %d\n", ret); 1875 } 1876 1877 static void wm8903_free_gpio(struct wm8903_priv *wm8903) 1878 { 1879 int ret; 1880 1881 ret = gpiochip_remove(&wm8903->gpio_chip); 1882 if (ret != 0) 1883 dev_err(wm8903->dev, "Failed to remove GPIOs: %d\n", ret); 1884 } 1885 #else 1886 static void wm8903_init_gpio(struct wm8903_priv *wm8903) 1887 { 1888 } 1889 1890 static void wm8903_free_gpio(struct wm8903_priv *wm8903) 1891 { 1892 } 1893 #endif 1894 1895 static int wm8903_probe(struct snd_soc_codec *codec) 1896 { 1897 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec); 1898 int ret; 1899 1900 wm8903->codec = codec; 1901 codec->control_data = wm8903->regmap; 1902 1903 ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_REGMAP); 1904 if (ret != 0) { 1905 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); 1906 return ret; 1907 } 1908 1909 /* power on device */ 1910 wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 1911 1912 return ret; 1913 } 1914 1915 /* power down chip */ 1916 static int wm8903_remove(struct snd_soc_codec *codec) 1917 { 1918 wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF); 1919 1920 return 0; 1921 } 1922 1923 static struct snd_soc_codec_driver soc_codec_dev_wm8903 = { 1924 .probe = wm8903_probe, 1925 .remove = wm8903_remove, 1926 .suspend = wm8903_suspend, 1927 .resume = wm8903_resume, 1928 .set_bias_level = wm8903_set_bias_level, 1929 .seq_notifier = wm8903_seq_notifier, 1930 .controls = wm8903_snd_controls, 1931 .num_controls = ARRAY_SIZE(wm8903_snd_controls), 1932 .dapm_widgets = wm8903_dapm_widgets, 1933 .num_dapm_widgets = ARRAY_SIZE(wm8903_dapm_widgets), 1934 .dapm_routes = wm8903_intercon, 1935 .num_dapm_routes = ARRAY_SIZE(wm8903_intercon), 1936 }; 1937 1938 static const struct regmap_config wm8903_regmap = { 1939 .reg_bits = 8, 1940 .val_bits = 16, 1941 1942 .max_register = WM8903_MAX_REGISTER, 1943 .volatile_reg = wm8903_volatile_register, 1944 .readable_reg = wm8903_readable_register, 1945 1946 .cache_type = REGCACHE_RBTREE, 1947 .reg_defaults = wm8903_reg_defaults, 1948 .num_reg_defaults = ARRAY_SIZE(wm8903_reg_defaults), 1949 }; 1950 1951 static int wm8903_set_pdata_irq_trigger(struct i2c_client *i2c, 1952 struct wm8903_platform_data *pdata) 1953 { 1954 struct irq_data *irq_data = irq_get_irq_data(i2c->irq); 1955 if (!irq_data) { 1956 dev_err(&i2c->dev, "Invalid IRQ: %d\n", 1957 i2c->irq); 1958 return -EINVAL; 1959 } 1960 1961 switch (irqd_get_trigger_type(irq_data)) { 1962 case IRQ_TYPE_NONE: 1963 default: 1964 /* 1965 * We assume the controller imposes no restrictions, 1966 * so we are able to select active-high 1967 */ 1968 /* Fall-through */ 1969 case IRQ_TYPE_LEVEL_HIGH: 1970 pdata->irq_active_low = false; 1971 break; 1972 case IRQ_TYPE_LEVEL_LOW: 1973 pdata->irq_active_low = true; 1974 break; 1975 } 1976 1977 return 0; 1978 } 1979 1980 static int wm8903_set_pdata_from_of(struct i2c_client *i2c, 1981 struct wm8903_platform_data *pdata) 1982 { 1983 const struct device_node *np = i2c->dev.of_node; 1984 u32 val32; 1985 int i; 1986 1987 if (of_property_read_u32(np, "micdet-cfg", &val32) >= 0) 1988 pdata->micdet_cfg = val32; 1989 1990 if (of_property_read_u32(np, "micdet-delay", &val32) >= 0) 1991 pdata->micdet_delay = val32; 1992 1993 if (of_property_read_u32_array(np, "gpio-cfg", pdata->gpio_cfg, 1994 ARRAY_SIZE(pdata->gpio_cfg)) >= 0) { 1995 /* 1996 * In device tree: 0 means "write 0", 1997 * 0xffffffff means "don't touch". 1998 * 1999 * In platform data: 0 means "don't touch", 2000 * 0x8000 means "write 0". 2001 * 2002 * Note: WM8903_GPIO_CONFIG_ZERO == 0x8000. 2003 * 2004 * Convert from DT to pdata representation here, 2005 * so no other code needs to change. 2006 */ 2007 for (i = 0; i < ARRAY_SIZE(pdata->gpio_cfg); i++) { 2008 if (pdata->gpio_cfg[i] == 0) { 2009 pdata->gpio_cfg[i] = WM8903_GPIO_CONFIG_ZERO; 2010 } else if (pdata->gpio_cfg[i] == 0xffffffff) { 2011 pdata->gpio_cfg[i] = 0; 2012 } else if (pdata->gpio_cfg[i] > 0x7fff) { 2013 dev_err(&i2c->dev, "Invalid gpio-cfg[%d] %x\n", 2014 i, pdata->gpio_cfg[i]); 2015 return -EINVAL; 2016 } 2017 } 2018 } 2019 2020 return 0; 2021 } 2022 2023 static int wm8903_i2c_probe(struct i2c_client *i2c, 2024 const struct i2c_device_id *id) 2025 { 2026 struct wm8903_platform_data *pdata = dev_get_platdata(&i2c->dev); 2027 struct wm8903_priv *wm8903; 2028 int trigger; 2029 bool mic_gpio = false; 2030 unsigned int val, irq_pol; 2031 int ret, i; 2032 2033 wm8903 = devm_kzalloc(&i2c->dev, sizeof(struct wm8903_priv), 2034 GFP_KERNEL); 2035 if (wm8903 == NULL) 2036 return -ENOMEM; 2037 wm8903->dev = &i2c->dev; 2038 2039 wm8903->regmap = devm_regmap_init_i2c(i2c, &wm8903_regmap); 2040 if (IS_ERR(wm8903->regmap)) { 2041 ret = PTR_ERR(wm8903->regmap); 2042 dev_err(&i2c->dev, "Failed to allocate register map: %d\n", 2043 ret); 2044 return ret; 2045 } 2046 2047 i2c_set_clientdata(i2c, wm8903); 2048 2049 /* If no platform data was supplied, create storage for defaults */ 2050 if (pdata) { 2051 wm8903->pdata = pdata; 2052 } else { 2053 wm8903->pdata = devm_kzalloc(&i2c->dev, 2054 sizeof(struct wm8903_platform_data), 2055 GFP_KERNEL); 2056 if (wm8903->pdata == NULL) { 2057 dev_err(&i2c->dev, "Failed to allocate pdata\n"); 2058 return -ENOMEM; 2059 } 2060 2061 if (i2c->irq) { 2062 ret = wm8903_set_pdata_irq_trigger(i2c, wm8903->pdata); 2063 if (ret != 0) 2064 return ret; 2065 } 2066 2067 if (i2c->dev.of_node) { 2068 ret = wm8903_set_pdata_from_of(i2c, wm8903->pdata); 2069 if (ret != 0) 2070 return ret; 2071 } 2072 } 2073 2074 pdata = wm8903->pdata; 2075 2076 ret = regmap_read(wm8903->regmap, WM8903_SW_RESET_AND_ID, &val); 2077 if (ret != 0) { 2078 dev_err(&i2c->dev, "Failed to read chip ID: %d\n", ret); 2079 goto err; 2080 } 2081 if (val != 0x8903) { 2082 dev_err(&i2c->dev, "Device with ID %x is not a WM8903\n", val); 2083 ret = -ENODEV; 2084 goto err; 2085 } 2086 2087 ret = regmap_read(wm8903->regmap, WM8903_REVISION_NUMBER, &val); 2088 if (ret != 0) { 2089 dev_err(&i2c->dev, "Failed to read chip revision: %d\n", ret); 2090 goto err; 2091 } 2092 dev_info(&i2c->dev, "WM8903 revision %c\n", 2093 (val & WM8903_CHIP_REV_MASK) + 'A'); 2094 2095 /* Reset the device */ 2096 regmap_write(wm8903->regmap, WM8903_SW_RESET_AND_ID, 0x8903); 2097 2098 wm8903_init_gpio(wm8903); 2099 2100 /* Set up GPIO pin state, detect if any are MIC detect outputs */ 2101 for (i = 0; i < ARRAY_SIZE(pdata->gpio_cfg); i++) { 2102 if ((!pdata->gpio_cfg[i]) || 2103 (pdata->gpio_cfg[i] > WM8903_GPIO_CONFIG_ZERO)) 2104 continue; 2105 2106 regmap_write(wm8903->regmap, WM8903_GPIO_CONTROL_1 + i, 2107 pdata->gpio_cfg[i] & 0x7fff); 2108 2109 val = (pdata->gpio_cfg[i] & WM8903_GP1_FN_MASK) 2110 >> WM8903_GP1_FN_SHIFT; 2111 2112 switch (val) { 2113 case WM8903_GPn_FN_MICBIAS_CURRENT_DETECT: 2114 case WM8903_GPn_FN_MICBIAS_SHORT_DETECT: 2115 mic_gpio = true; 2116 break; 2117 default: 2118 break; 2119 } 2120 } 2121 2122 /* Set up microphone detection */ 2123 regmap_write(wm8903->regmap, WM8903_MIC_BIAS_CONTROL_0, 2124 pdata->micdet_cfg); 2125 2126 /* Microphone detection needs the WSEQ clock */ 2127 if (pdata->micdet_cfg) 2128 regmap_update_bits(wm8903->regmap, WM8903_WRITE_SEQUENCER_0, 2129 WM8903_WSEQ_ENA, WM8903_WSEQ_ENA); 2130 2131 /* If microphone detection is enabled by pdata but 2132 * detected via IRQ then interrupts can be lost before 2133 * the machine driver has set up microphone detection 2134 * IRQs as the IRQs are clear on read. The detection 2135 * will be enabled when the machine driver configures. 2136 */ 2137 WARN_ON(!mic_gpio && (pdata->micdet_cfg & WM8903_MICDET_ENA)); 2138 2139 wm8903->mic_delay = pdata->micdet_delay; 2140 2141 if (i2c->irq) { 2142 if (pdata->irq_active_low) { 2143 trigger = IRQF_TRIGGER_LOW; 2144 irq_pol = WM8903_IRQ_POL; 2145 } else { 2146 trigger = IRQF_TRIGGER_HIGH; 2147 irq_pol = 0; 2148 } 2149 2150 regmap_update_bits(wm8903->regmap, WM8903_INTERRUPT_CONTROL, 2151 WM8903_IRQ_POL, irq_pol); 2152 2153 ret = request_threaded_irq(i2c->irq, NULL, wm8903_irq, 2154 trigger | IRQF_ONESHOT, 2155 "wm8903", wm8903); 2156 if (ret != 0) { 2157 dev_err(wm8903->dev, "Failed to request IRQ: %d\n", 2158 ret); 2159 return ret; 2160 } 2161 2162 /* Enable write sequencer interrupts */ 2163 regmap_update_bits(wm8903->regmap, 2164 WM8903_INTERRUPT_STATUS_1_MASK, 2165 WM8903_IM_WSEQ_BUSY_EINT, 0); 2166 } 2167 2168 /* Latch volume update bits */ 2169 regmap_update_bits(wm8903->regmap, WM8903_ADC_DIGITAL_VOLUME_LEFT, 2170 WM8903_ADCVU, WM8903_ADCVU); 2171 regmap_update_bits(wm8903->regmap, WM8903_ADC_DIGITAL_VOLUME_RIGHT, 2172 WM8903_ADCVU, WM8903_ADCVU); 2173 2174 regmap_update_bits(wm8903->regmap, WM8903_DAC_DIGITAL_VOLUME_LEFT, 2175 WM8903_DACVU, WM8903_DACVU); 2176 regmap_update_bits(wm8903->regmap, WM8903_DAC_DIGITAL_VOLUME_RIGHT, 2177 WM8903_DACVU, WM8903_DACVU); 2178 2179 regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT1_LEFT, 2180 WM8903_HPOUTVU, WM8903_HPOUTVU); 2181 regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT1_RIGHT, 2182 WM8903_HPOUTVU, WM8903_HPOUTVU); 2183 2184 regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT2_LEFT, 2185 WM8903_LINEOUTVU, WM8903_LINEOUTVU); 2186 regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT2_RIGHT, 2187 WM8903_LINEOUTVU, WM8903_LINEOUTVU); 2188 2189 regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT3_LEFT, 2190 WM8903_SPKVU, WM8903_SPKVU); 2191 regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT3_RIGHT, 2192 WM8903_SPKVU, WM8903_SPKVU); 2193 2194 /* Enable DAC soft mute by default */ 2195 regmap_update_bits(wm8903->regmap, WM8903_DAC_DIGITAL_1, 2196 WM8903_DAC_MUTEMODE | WM8903_DAC_MUTE, 2197 WM8903_DAC_MUTEMODE | WM8903_DAC_MUTE); 2198 2199 ret = snd_soc_register_codec(&i2c->dev, 2200 &soc_codec_dev_wm8903, &wm8903_dai, 1); 2201 if (ret != 0) 2202 goto err; 2203 2204 return 0; 2205 err: 2206 return ret; 2207 } 2208 2209 static int wm8903_i2c_remove(struct i2c_client *client) 2210 { 2211 struct wm8903_priv *wm8903 = i2c_get_clientdata(client); 2212 2213 if (client->irq) 2214 free_irq(client->irq, wm8903); 2215 wm8903_free_gpio(wm8903); 2216 snd_soc_unregister_codec(&client->dev); 2217 2218 return 0; 2219 } 2220 2221 static const struct of_device_id wm8903_of_match[] = { 2222 { .compatible = "wlf,wm8903", }, 2223 {}, 2224 }; 2225 MODULE_DEVICE_TABLE(of, wm8903_of_match); 2226 2227 static const struct i2c_device_id wm8903_i2c_id[] = { 2228 { "wm8903", 0 }, 2229 { } 2230 }; 2231 MODULE_DEVICE_TABLE(i2c, wm8903_i2c_id); 2232 2233 static struct i2c_driver wm8903_i2c_driver = { 2234 .driver = { 2235 .name = "wm8903", 2236 .owner = THIS_MODULE, 2237 .of_match_table = wm8903_of_match, 2238 }, 2239 .probe = wm8903_i2c_probe, 2240 .remove = wm8903_i2c_remove, 2241 .id_table = wm8903_i2c_id, 2242 }; 2243 2244 module_i2c_driver(wm8903_i2c_driver); 2245 2246 MODULE_DESCRIPTION("ASoC WM8903 driver"); 2247 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.cm>"); 2248 MODULE_LICENSE("GPL"); 2249