1/* 2 * sn95031.c - TI sn95031 Codec driver 3 * 4 * Copyright (C) 2010 Intel Corp 5 * Author: Vinod Koul <vinod.koul@intel.com> 6 * Author: Harsha Priya <priya.harsha@intel.com> 7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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 as published by 11 * the Free Software Foundation; version 2 of the License. 12 * 13 * This program is distributed in the hope that it will be useful, but 14 * WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License along 19 * with this program; if not, write to the Free Software Foundation, Inc., 20 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. 21 * 22 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 23 * 24 * 25 */ 26#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 27 28#include <linux/platform_device.h> 29#include <linux/delay.h> 30#include <linux/slab.h> 31#include <linux/module.h> 32 33#include <asm/intel_scu_ipc.h> 34#include <sound/pcm.h> 35#include <sound/pcm_params.h> 36#include <sound/soc.h> 37#include <sound/soc-dapm.h> 38#include <sound/initval.h> 39#include <sound/tlv.h> 40#include <sound/jack.h> 41#include "sn95031.h" 42 43#define SN95031_RATES (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100) 44#define SN95031_FORMATS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE) 45 46/* adc helper functions */ 47 48/* enables mic bias voltage */ 49static void sn95031_enable_mic_bias(struct snd_soc_codec *codec) 50{ 51 snd_soc_write(codec, SN95031_VAUD, BIT(2)|BIT(1)|BIT(0)); 52 snd_soc_update_bits(codec, SN95031_MICBIAS, BIT(2), BIT(2)); 53} 54 55/* Enable/Disable the ADC depending on the argument */ 56static void configure_adc(struct snd_soc_codec *sn95031_codec, int val) 57{ 58 int value = snd_soc_read(sn95031_codec, SN95031_ADC1CNTL1); 59 60 if (val) { 61 /* Enable and start the ADC */ 62 value |= (SN95031_ADC_ENBL | SN95031_ADC_START); 63 value &= (~SN95031_ADC_NO_LOOP); 64 } else { 65 /* Just stop the ADC */ 66 value &= (~SN95031_ADC_START); 67 } 68 snd_soc_write(sn95031_codec, SN95031_ADC1CNTL1, value); 69} 70 71/* 72 * finds an empty channel for conversion 73 * If the ADC is not enabled then start using 0th channel 74 * itself. Otherwise find an empty channel by looking for a 75 * channel in which the stopbit is set to 1. returns the index 76 * of the first free channel if succeeds or an error code. 77 * 78 * Context: can sleep 79 * 80 */ 81static int find_free_channel(struct snd_soc_codec *sn95031_codec) 82{ 83 int i, value; 84 85 /* check whether ADC is enabled */ 86 value = snd_soc_read(sn95031_codec, SN95031_ADC1CNTL1); 87 88 if ((value & SN95031_ADC_ENBL) == 0) 89 return 0; 90 91 /* ADC is already enabled; Looking for an empty channel */ 92 for (i = 0; i < SN95031_ADC_CHANLS_MAX; i++) { 93 value = snd_soc_read(sn95031_codec, 94 SN95031_ADC_CHNL_START_ADDR + i); 95 if (value & SN95031_STOPBIT_MASK) 96 break; 97 } 98 return (i == SN95031_ADC_CHANLS_MAX) ? (-EINVAL) : i; 99} 100 101/* Initialize the ADC for reading micbias values. Can sleep. */ 102static int sn95031_initialize_adc(struct snd_soc_codec *sn95031_codec) 103{ 104 int base_addr, chnl_addr; 105 int value; 106 int channel_index; 107 108 /* Index of the first channel in which the stop bit is set */ 109 channel_index = find_free_channel(sn95031_codec); 110 if (channel_index < 0) { 111 pr_err("No free ADC channels"); 112 return channel_index; 113 } 114 115 base_addr = SN95031_ADC_CHNL_START_ADDR + channel_index; 116 117 if (!(channel_index == 0 || channel_index == SN95031_ADC_LOOP_MAX)) { 118 /* Reset stop bit for channels other than 0 and 12 */ 119 value = snd_soc_read(sn95031_codec, base_addr); 120 /* Set the stop bit to zero */ 121 snd_soc_write(sn95031_codec, base_addr, value & 0xEF); 122 /* Index of the first free channel */ 123 base_addr++; 124 channel_index++; 125 } 126 127 /* Since this is the last channel, set the stop bit 128 to 1 by ORing the DIE_SENSOR_CODE with 0x10 */ 129 snd_soc_write(sn95031_codec, base_addr, 130 SN95031_AUDIO_DETECT_CODE | 0x10); 131 132 chnl_addr = SN95031_ADC_DATA_START_ADDR + 2 * channel_index; 133 pr_debug("mid_initialize : %x", chnl_addr); 134 configure_adc(sn95031_codec, 1); 135 return chnl_addr; 136} 137 138 139/* reads the ADC registers and gets the mic bias value in mV. */ 140static unsigned int sn95031_get_mic_bias(struct snd_soc_codec *codec) 141{ 142 u16 adc_adr = sn95031_initialize_adc(codec); 143 u16 adc_val1, adc_val2; 144 unsigned int mic_bias; 145 146 sn95031_enable_mic_bias(codec); 147 148 /* Enable the sound card for conversion before reading */ 149 snd_soc_write(codec, SN95031_ADC1CNTL3, 0x05); 150 /* Re-toggle the RRDATARD bit */ 151 snd_soc_write(codec, SN95031_ADC1CNTL3, 0x04); 152 153 /* Read the higher bits of data */ 154 msleep(1000); 155 adc_val1 = snd_soc_read(codec, adc_adr); 156 adc_adr++; 157 adc_val2 = snd_soc_read(codec, adc_adr); 158 159 /* Adding lower two bits to the higher bits */ 160 mic_bias = (adc_val1 << 2) + (adc_val2 & 3); 161 mic_bias = (mic_bias * SN95031_ADC_ONE_LSB_MULTIPLIER) / 1000; 162 pr_debug("mic bias = %dmV\n", mic_bias); 163 return mic_bias; 164} 165/*end - adc helper functions */ 166 167static int sn95031_read(void *ctx, unsigned int reg, unsigned int *val) 168{ 169 u8 value = 0; 170 int ret; 171 172 ret = intel_scu_ipc_ioread8(reg, &value); 173 if (ret == 0) 174 *val = value; 175 176 return ret; 177} 178 179static int sn95031_write(void *ctx, unsigned int reg, unsigned int value) 180{ 181 return intel_scu_ipc_iowrite8(reg, value); 182} 183 184static const struct regmap_config sn95031_regmap = { 185 .reg_read = sn95031_read, 186 .reg_write = sn95031_write, 187}; 188 189static int sn95031_set_vaud_bias(struct snd_soc_codec *codec, 190 enum snd_soc_bias_level level) 191{ 192 switch (level) { 193 case SND_SOC_BIAS_ON: 194 break; 195 196 case SND_SOC_BIAS_PREPARE: 197 if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) { 198 pr_debug("vaud_bias powering up pll\n"); 199 /* power up the pll */ 200 snd_soc_write(codec, SN95031_AUDPLLCTRL, BIT(5)); 201 /* enable pcm 2 */ 202 snd_soc_update_bits(codec, SN95031_PCM2C2, 203 BIT(0), BIT(0)); 204 } 205 break; 206 207 case SND_SOC_BIAS_STANDBY: 208 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { 209 pr_debug("vaud_bias power up rail\n"); 210 /* power up the rail */ 211 snd_soc_write(codec, SN95031_VAUD, 212 BIT(2)|BIT(1)|BIT(0)); 213 msleep(1); 214 } else if (codec->dapm.bias_level == SND_SOC_BIAS_PREPARE) { 215 /* turn off pcm */ 216 pr_debug("vaud_bias power dn pcm\n"); 217 snd_soc_update_bits(codec, SN95031_PCM2C2, BIT(0), 0); 218 snd_soc_write(codec, SN95031_AUDPLLCTRL, 0); 219 } 220 break; 221 222 223 case SND_SOC_BIAS_OFF: 224 pr_debug("vaud_bias _OFF doing rail shutdown\n"); 225 snd_soc_write(codec, SN95031_VAUD, BIT(3)); 226 break; 227 } 228 229 codec->dapm.bias_level = level; 230 return 0; 231} 232 233static int sn95031_vhs_event(struct snd_soc_dapm_widget *w, 234 struct snd_kcontrol *kcontrol, int event) 235{ 236 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); 237 238 if (SND_SOC_DAPM_EVENT_ON(event)) { 239 pr_debug("VHS SND_SOC_DAPM_EVENT_ON doing rail startup now\n"); 240 /* power up the rail */ 241 snd_soc_write(codec, SN95031_VHSP, 0x3D); 242 snd_soc_write(codec, SN95031_VHSN, 0x3F); 243 msleep(1); 244 } else if (SND_SOC_DAPM_EVENT_OFF(event)) { 245 pr_debug("VHS SND_SOC_DAPM_EVENT_OFF doing rail shutdown\n"); 246 snd_soc_write(codec, SN95031_VHSP, 0xC4); 247 snd_soc_write(codec, SN95031_VHSN, 0x04); 248 } 249 return 0; 250} 251 252static int sn95031_vihf_event(struct snd_soc_dapm_widget *w, 253 struct snd_kcontrol *kcontrol, int event) 254{ 255 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); 256 257 if (SND_SOC_DAPM_EVENT_ON(event)) { 258 pr_debug("VIHF SND_SOC_DAPM_EVENT_ON doing rail startup now\n"); 259 /* power up the rail */ 260 snd_soc_write(codec, SN95031_VIHF, 0x27); 261 msleep(1); 262 } else if (SND_SOC_DAPM_EVENT_OFF(event)) { 263 pr_debug("VIHF SND_SOC_DAPM_EVENT_OFF doing rail shutdown\n"); 264 snd_soc_write(codec, SN95031_VIHF, 0x24); 265 } 266 return 0; 267} 268 269static int sn95031_dmic12_event(struct snd_soc_dapm_widget *w, 270 struct snd_kcontrol *k, int event) 271{ 272 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); 273 unsigned int ldo = 0, clk_dir = 0, data_dir = 0; 274 275 if (SND_SOC_DAPM_EVENT_ON(event)) { 276 ldo = BIT(5)|BIT(4); 277 clk_dir = BIT(0); 278 data_dir = BIT(7); 279 } 280 /* program DMIC LDO, clock and set clock */ 281 snd_soc_update_bits(codec, SN95031_MICBIAS, BIT(5)|BIT(4), ldo); 282 snd_soc_update_bits(codec, SN95031_DMICBUF0123, BIT(0), clk_dir); 283 snd_soc_update_bits(codec, SN95031_DMICBUF0123, BIT(7), data_dir); 284 return 0; 285} 286 287static int sn95031_dmic34_event(struct snd_soc_dapm_widget *w, 288 struct snd_kcontrol *k, int event) 289{ 290 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); 291 unsigned int ldo = 0, clk_dir = 0, data_dir = 0; 292 293 if (SND_SOC_DAPM_EVENT_ON(event)) { 294 ldo = BIT(5)|BIT(4); 295 clk_dir = BIT(2); 296 data_dir = BIT(1); 297 } 298 /* program DMIC LDO, clock and set clock */ 299 snd_soc_update_bits(codec, SN95031_MICBIAS, BIT(5)|BIT(4), ldo); 300 snd_soc_update_bits(codec, SN95031_DMICBUF0123, BIT(2), clk_dir); 301 snd_soc_update_bits(codec, SN95031_DMICBUF45, BIT(1), data_dir); 302 return 0; 303} 304 305static int sn95031_dmic56_event(struct snd_soc_dapm_widget *w, 306 struct snd_kcontrol *k, int event) 307{ 308 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); 309 unsigned int ldo = 0; 310 311 if (SND_SOC_DAPM_EVENT_ON(event)) 312 ldo = BIT(7)|BIT(6); 313 314 /* program DMIC LDO */ 315 snd_soc_update_bits(codec, SN95031_MICBIAS, BIT(7)|BIT(6), ldo); 316 return 0; 317} 318 319/* mux controls */ 320static const char *sn95031_mic_texts[] = { "AMIC", "LineIn" }; 321 322static SOC_ENUM_SINGLE_DECL(sn95031_micl_enum, 323 SN95031_ADCCONFIG, 1, sn95031_mic_texts); 324 325static const struct snd_kcontrol_new sn95031_micl_mux_control = 326 SOC_DAPM_ENUM("Route", sn95031_micl_enum); 327 328static SOC_ENUM_SINGLE_DECL(sn95031_micr_enum, 329 SN95031_ADCCONFIG, 3, sn95031_mic_texts); 330 331static const struct snd_kcontrol_new sn95031_micr_mux_control = 332 SOC_DAPM_ENUM("Route", sn95031_micr_enum); 333 334static const char *sn95031_input_texts[] = { "DMIC1", "DMIC2", "DMIC3", 335 "DMIC4", "DMIC5", "DMIC6", 336 "ADC Left", "ADC Right" }; 337 338static SOC_ENUM_SINGLE_DECL(sn95031_input1_enum, 339 SN95031_AUDIOMUX12, 0, sn95031_input_texts); 340 341static const struct snd_kcontrol_new sn95031_input1_mux_control = 342 SOC_DAPM_ENUM("Route", sn95031_input1_enum); 343 344static SOC_ENUM_SINGLE_DECL(sn95031_input2_enum, 345 SN95031_AUDIOMUX12, 4, sn95031_input_texts); 346 347static const struct snd_kcontrol_new sn95031_input2_mux_control = 348 SOC_DAPM_ENUM("Route", sn95031_input2_enum); 349 350static SOC_ENUM_SINGLE_DECL(sn95031_input3_enum, 351 SN95031_AUDIOMUX34, 0, sn95031_input_texts); 352 353static const struct snd_kcontrol_new sn95031_input3_mux_control = 354 SOC_DAPM_ENUM("Route", sn95031_input3_enum); 355 356static SOC_ENUM_SINGLE_DECL(sn95031_input4_enum, 357 SN95031_AUDIOMUX34, 4, sn95031_input_texts); 358 359static const struct snd_kcontrol_new sn95031_input4_mux_control = 360 SOC_DAPM_ENUM("Route", sn95031_input4_enum); 361 362/* capture path controls */ 363 364static const char *sn95031_micmode_text[] = {"Single Ended", "Differential"}; 365 366/* 0dB to 30dB in 10dB steps */ 367static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 10, 0); 368 369static SOC_ENUM_SINGLE_DECL(sn95031_micmode1_enum, 370 SN95031_MICAMP1, 1, sn95031_micmode_text); 371static SOC_ENUM_SINGLE_DECL(sn95031_micmode2_enum, 372 SN95031_MICAMP2, 1, sn95031_micmode_text); 373 374static const char *sn95031_dmic_cfg_text[] = {"GPO", "DMIC"}; 375 376static SOC_ENUM_SINGLE_DECL(sn95031_dmic12_cfg_enum, 377 SN95031_DMICMUX, 0, sn95031_dmic_cfg_text); 378static SOC_ENUM_SINGLE_DECL(sn95031_dmic34_cfg_enum, 379 SN95031_DMICMUX, 1, sn95031_dmic_cfg_text); 380static SOC_ENUM_SINGLE_DECL(sn95031_dmic56_cfg_enum, 381 SN95031_DMICMUX, 2, sn95031_dmic_cfg_text); 382 383static const struct snd_kcontrol_new sn95031_snd_controls[] = { 384 SOC_ENUM("Mic1Mode Capture Route", sn95031_micmode1_enum), 385 SOC_ENUM("Mic2Mode Capture Route", sn95031_micmode2_enum), 386 SOC_ENUM("DMIC12 Capture Route", sn95031_dmic12_cfg_enum), 387 SOC_ENUM("DMIC34 Capture Route", sn95031_dmic34_cfg_enum), 388 SOC_ENUM("DMIC56 Capture Route", sn95031_dmic56_cfg_enum), 389 SOC_SINGLE_TLV("Mic1 Capture Volume", SN95031_MICAMP1, 390 2, 4, 0, mic_tlv), 391 SOC_SINGLE_TLV("Mic2 Capture Volume", SN95031_MICAMP2, 392 2, 4, 0, mic_tlv), 393}; 394 395/* DAPM widgets */ 396static const struct snd_soc_dapm_widget sn95031_dapm_widgets[] = { 397 398 /* all end points mic, hs etc */ 399 SND_SOC_DAPM_OUTPUT("HPOUTL"), 400 SND_SOC_DAPM_OUTPUT("HPOUTR"), 401 SND_SOC_DAPM_OUTPUT("EPOUT"), 402 SND_SOC_DAPM_OUTPUT("IHFOUTL"), 403 SND_SOC_DAPM_OUTPUT("IHFOUTR"), 404 SND_SOC_DAPM_OUTPUT("LINEOUTL"), 405 SND_SOC_DAPM_OUTPUT("LINEOUTR"), 406 SND_SOC_DAPM_OUTPUT("VIB1OUT"), 407 SND_SOC_DAPM_OUTPUT("VIB2OUT"), 408 409 SND_SOC_DAPM_INPUT("AMIC1"), /* headset mic */ 410 SND_SOC_DAPM_INPUT("AMIC2"), 411 SND_SOC_DAPM_INPUT("DMIC1"), 412 SND_SOC_DAPM_INPUT("DMIC2"), 413 SND_SOC_DAPM_INPUT("DMIC3"), 414 SND_SOC_DAPM_INPUT("DMIC4"), 415 SND_SOC_DAPM_INPUT("DMIC5"), 416 SND_SOC_DAPM_INPUT("DMIC6"), 417 SND_SOC_DAPM_INPUT("LINEINL"), 418 SND_SOC_DAPM_INPUT("LINEINR"), 419 420 SND_SOC_DAPM_MICBIAS("AMIC1Bias", SN95031_MICBIAS, 2, 0), 421 SND_SOC_DAPM_MICBIAS("AMIC2Bias", SN95031_MICBIAS, 3, 0), 422 SND_SOC_DAPM_MICBIAS("DMIC12Bias", SN95031_DMICMUX, 3, 0), 423 SND_SOC_DAPM_MICBIAS("DMIC34Bias", SN95031_DMICMUX, 4, 0), 424 SND_SOC_DAPM_MICBIAS("DMIC56Bias", SN95031_DMICMUX, 5, 0), 425 426 SND_SOC_DAPM_SUPPLY("DMIC12supply", SN95031_DMICLK, 0, 0, 427 sn95031_dmic12_event, 428 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), 429 SND_SOC_DAPM_SUPPLY("DMIC34supply", SN95031_DMICLK, 1, 0, 430 sn95031_dmic34_event, 431 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), 432 SND_SOC_DAPM_SUPPLY("DMIC56supply", SN95031_DMICLK, 2, 0, 433 sn95031_dmic56_event, 434 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), 435 436 SND_SOC_DAPM_AIF_OUT("PCM_Out", "Capture", 0, 437 SND_SOC_NOPM, 0, 0), 438 439 SND_SOC_DAPM_SUPPLY("Headset Rail", SND_SOC_NOPM, 0, 0, 440 sn95031_vhs_event, 441 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), 442 SND_SOC_DAPM_SUPPLY("Speaker Rail", SND_SOC_NOPM, 0, 0, 443 sn95031_vihf_event, 444 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), 445 446 /* playback path driver enables */ 447 SND_SOC_DAPM_PGA("Headset Left Playback", 448 SN95031_DRIVEREN, 0, 0, NULL, 0), 449 SND_SOC_DAPM_PGA("Headset Right Playback", 450 SN95031_DRIVEREN, 1, 0, NULL, 0), 451 SND_SOC_DAPM_PGA("Speaker Left Playback", 452 SN95031_DRIVEREN, 2, 0, NULL, 0), 453 SND_SOC_DAPM_PGA("Speaker Right Playback", 454 SN95031_DRIVEREN, 3, 0, NULL, 0), 455 SND_SOC_DAPM_PGA("Vibra1 Playback", 456 SN95031_DRIVEREN, 4, 0, NULL, 0), 457 SND_SOC_DAPM_PGA("Vibra2 Playback", 458 SN95031_DRIVEREN, 5, 0, NULL, 0), 459 SND_SOC_DAPM_PGA("Earpiece Playback", 460 SN95031_DRIVEREN, 6, 0, NULL, 0), 461 SND_SOC_DAPM_PGA("Lineout Left Playback", 462 SN95031_LOCTL, 0, 0, NULL, 0), 463 SND_SOC_DAPM_PGA("Lineout Right Playback", 464 SN95031_LOCTL, 4, 0, NULL, 0), 465 466 /* playback path filter enable */ 467 SND_SOC_DAPM_PGA("Headset Left Filter", 468 SN95031_HSEPRXCTRL, 4, 0, NULL, 0), 469 SND_SOC_DAPM_PGA("Headset Right Filter", 470 SN95031_HSEPRXCTRL, 5, 0, NULL, 0), 471 SND_SOC_DAPM_PGA("Speaker Left Filter", 472 SN95031_IHFRXCTRL, 0, 0, NULL, 0), 473 SND_SOC_DAPM_PGA("Speaker Right Filter", 474 SN95031_IHFRXCTRL, 1, 0, NULL, 0), 475 476 /* DACs */ 477 SND_SOC_DAPM_DAC("HSDAC Left", "Headset", 478 SN95031_DACCONFIG, 0, 0), 479 SND_SOC_DAPM_DAC("HSDAC Right", "Headset", 480 SN95031_DACCONFIG, 1, 0), 481 SND_SOC_DAPM_DAC("IHFDAC Left", "Speaker", 482 SN95031_DACCONFIG, 2, 0), 483 SND_SOC_DAPM_DAC("IHFDAC Right", "Speaker", 484 SN95031_DACCONFIG, 3, 0), 485 SND_SOC_DAPM_DAC("Vibra1 DAC", "Vibra1", 486 SN95031_VIB1C5, 1, 0), 487 SND_SOC_DAPM_DAC("Vibra2 DAC", "Vibra2", 488 SN95031_VIB2C5, 1, 0), 489 490 /* capture widgets */ 491 SND_SOC_DAPM_PGA("LineIn Enable Left", SN95031_MICAMP1, 492 7, 0, NULL, 0), 493 SND_SOC_DAPM_PGA("LineIn Enable Right", SN95031_MICAMP2, 494 7, 0, NULL, 0), 495 496 SND_SOC_DAPM_PGA("MIC1 Enable", SN95031_MICAMP1, 0, 0, NULL, 0), 497 SND_SOC_DAPM_PGA("MIC2 Enable", SN95031_MICAMP2, 0, 0, NULL, 0), 498 SND_SOC_DAPM_PGA("TX1 Enable", SN95031_AUDIOTXEN, 2, 0, NULL, 0), 499 SND_SOC_DAPM_PGA("TX2 Enable", SN95031_AUDIOTXEN, 3, 0, NULL, 0), 500 SND_SOC_DAPM_PGA("TX3 Enable", SN95031_AUDIOTXEN, 4, 0, NULL, 0), 501 SND_SOC_DAPM_PGA("TX4 Enable", SN95031_AUDIOTXEN, 5, 0, NULL, 0), 502 503 /* ADC have null stream as they will be turned ON by TX path */ 504 SND_SOC_DAPM_ADC("ADC Left", NULL, 505 SN95031_ADCCONFIG, 0, 0), 506 SND_SOC_DAPM_ADC("ADC Right", NULL, 507 SN95031_ADCCONFIG, 2, 0), 508 509 SND_SOC_DAPM_MUX("Mic_InputL Capture Route", 510 SND_SOC_NOPM, 0, 0, &sn95031_micl_mux_control), 511 SND_SOC_DAPM_MUX("Mic_InputR Capture Route", 512 SND_SOC_NOPM, 0, 0, &sn95031_micr_mux_control), 513 514 SND_SOC_DAPM_MUX("Txpath1 Capture Route", 515 SND_SOC_NOPM, 0, 0, &sn95031_input1_mux_control), 516 SND_SOC_DAPM_MUX("Txpath2 Capture Route", 517 SND_SOC_NOPM, 0, 0, &sn95031_input2_mux_control), 518 SND_SOC_DAPM_MUX("Txpath3 Capture Route", 519 SND_SOC_NOPM, 0, 0, &sn95031_input3_mux_control), 520 SND_SOC_DAPM_MUX("Txpath4 Capture Route", 521 SND_SOC_NOPM, 0, 0, &sn95031_input4_mux_control), 522 523}; 524 525static const struct snd_soc_dapm_route sn95031_audio_map[] = { 526 /* headset and earpiece map */ 527 { "HPOUTL", NULL, "Headset Rail"}, 528 { "HPOUTR", NULL, "Headset Rail"}, 529 { "HPOUTL", NULL, "Headset Left Playback" }, 530 { "HPOUTR", NULL, "Headset Right Playback" }, 531 { "EPOUT", NULL, "Earpiece Playback" }, 532 { "Headset Left Playback", NULL, "Headset Left Filter"}, 533 { "Headset Right Playback", NULL, "Headset Right Filter"}, 534 { "Earpiece Playback", NULL, "Headset Left Filter"}, 535 { "Headset Left Filter", NULL, "HSDAC Left"}, 536 { "Headset Right Filter", NULL, "HSDAC Right"}, 537 538 /* speaker map */ 539 { "IHFOUTL", NULL, "Speaker Rail"}, 540 { "IHFOUTR", NULL, "Speaker Rail"}, 541 { "IHFOUTL", NULL, "Speaker Left Playback"}, 542 { "IHFOUTR", NULL, "Speaker Right Playback"}, 543 { "Speaker Left Playback", NULL, "Speaker Left Filter"}, 544 { "Speaker Right Playback", NULL, "Speaker Right Filter"}, 545 { "Speaker Left Filter", NULL, "IHFDAC Left"}, 546 { "Speaker Right Filter", NULL, "IHFDAC Right"}, 547 548 /* vibra map */ 549 { "VIB1OUT", NULL, "Vibra1 Playback"}, 550 { "Vibra1 Playback", NULL, "Vibra1 DAC"}, 551 552 { "VIB2OUT", NULL, "Vibra2 Playback"}, 553 { "Vibra2 Playback", NULL, "Vibra2 DAC"}, 554 555 /* lineout */ 556 { "LINEOUTL", NULL, "Lineout Left Playback"}, 557 { "LINEOUTR", NULL, "Lineout Right Playback"}, 558 { "Lineout Left Playback", NULL, "Headset Left Filter"}, 559 { "Lineout Left Playback", NULL, "Speaker Left Filter"}, 560 { "Lineout Left Playback", NULL, "Vibra1 DAC"}, 561 { "Lineout Right Playback", NULL, "Headset Right Filter"}, 562 { "Lineout Right Playback", NULL, "Speaker Right Filter"}, 563 { "Lineout Right Playback", NULL, "Vibra2 DAC"}, 564 565 /* Headset (AMIC1) mic */ 566 { "AMIC1Bias", NULL, "AMIC1"}, 567 { "MIC1 Enable", NULL, "AMIC1Bias"}, 568 { "Mic_InputL Capture Route", "AMIC", "MIC1 Enable"}, 569 570 /* AMIC2 */ 571 { "AMIC2Bias", NULL, "AMIC2"}, 572 { "MIC2 Enable", NULL, "AMIC2Bias"}, 573 { "Mic_InputR Capture Route", "AMIC", "MIC2 Enable"}, 574 575 576 /* Linein */ 577 { "LineIn Enable Left", NULL, "LINEINL"}, 578 { "LineIn Enable Right", NULL, "LINEINR"}, 579 { "Mic_InputL Capture Route", "LineIn", "LineIn Enable Left"}, 580 { "Mic_InputR Capture Route", "LineIn", "LineIn Enable Right"}, 581 582 /* ADC connection */ 583 { "ADC Left", NULL, "Mic_InputL Capture Route"}, 584 { "ADC Right", NULL, "Mic_InputR Capture Route"}, 585 586 /*DMIC connections */ 587 { "DMIC1", NULL, "DMIC12supply"}, 588 { "DMIC2", NULL, "DMIC12supply"}, 589 { "DMIC3", NULL, "DMIC34supply"}, 590 { "DMIC4", NULL, "DMIC34supply"}, 591 { "DMIC5", NULL, "DMIC56supply"}, 592 { "DMIC6", NULL, "DMIC56supply"}, 593 594 { "DMIC12Bias", NULL, "DMIC1"}, 595 { "DMIC12Bias", NULL, "DMIC2"}, 596 { "DMIC34Bias", NULL, "DMIC3"}, 597 { "DMIC34Bias", NULL, "DMIC4"}, 598 { "DMIC56Bias", NULL, "DMIC5"}, 599 { "DMIC56Bias", NULL, "DMIC6"}, 600 601 /*TX path inputs*/ 602 { "Txpath1 Capture Route", "ADC Left", "ADC Left"}, 603 { "Txpath2 Capture Route", "ADC Left", "ADC Left"}, 604 { "Txpath3 Capture Route", "ADC Left", "ADC Left"}, 605 { "Txpath4 Capture Route", "ADC Left", "ADC Left"}, 606 { "Txpath1 Capture Route", "ADC Right", "ADC Right"}, 607 { "Txpath2 Capture Route", "ADC Right", "ADC Right"}, 608 { "Txpath3 Capture Route", "ADC Right", "ADC Right"}, 609 { "Txpath4 Capture Route", "ADC Right", "ADC Right"}, 610 { "Txpath1 Capture Route", "DMIC1", "DMIC1"}, 611 { "Txpath2 Capture Route", "DMIC1", "DMIC1"}, 612 { "Txpath3 Capture Route", "DMIC1", "DMIC1"}, 613 { "Txpath4 Capture Route", "DMIC1", "DMIC1"}, 614 { "Txpath1 Capture Route", "DMIC2", "DMIC2"}, 615 { "Txpath2 Capture Route", "DMIC2", "DMIC2"}, 616 { "Txpath3 Capture Route", "DMIC2", "DMIC2"}, 617 { "Txpath4 Capture Route", "DMIC2", "DMIC2"}, 618 { "Txpath1 Capture Route", "DMIC3", "DMIC3"}, 619 { "Txpath2 Capture Route", "DMIC3", "DMIC3"}, 620 { "Txpath3 Capture Route", "DMIC3", "DMIC3"}, 621 { "Txpath4 Capture Route", "DMIC3", "DMIC3"}, 622 { "Txpath1 Capture Route", "DMIC4", "DMIC4"}, 623 { "Txpath2 Capture Route", "DMIC4", "DMIC4"}, 624 { "Txpath3 Capture Route", "DMIC4", "DMIC4"}, 625 { "Txpath4 Capture Route", "DMIC4", "DMIC4"}, 626 { "Txpath1 Capture Route", "DMIC5", "DMIC5"}, 627 { "Txpath2 Capture Route", "DMIC5", "DMIC5"}, 628 { "Txpath3 Capture Route", "DMIC5", "DMIC5"}, 629 { "Txpath4 Capture Route", "DMIC5", "DMIC5"}, 630 { "Txpath1 Capture Route", "DMIC6", "DMIC6"}, 631 { "Txpath2 Capture Route", "DMIC6", "DMIC6"}, 632 { "Txpath3 Capture Route", "DMIC6", "DMIC6"}, 633 { "Txpath4 Capture Route", "DMIC6", "DMIC6"}, 634 635 /* tx path */ 636 { "TX1 Enable", NULL, "Txpath1 Capture Route"}, 637 { "TX2 Enable", NULL, "Txpath2 Capture Route"}, 638 { "TX3 Enable", NULL, "Txpath3 Capture Route"}, 639 { "TX4 Enable", NULL, "Txpath4 Capture Route"}, 640 { "PCM_Out", NULL, "TX1 Enable"}, 641 { "PCM_Out", NULL, "TX2 Enable"}, 642 { "PCM_Out", NULL, "TX3 Enable"}, 643 { "PCM_Out", NULL, "TX4 Enable"}, 644 645}; 646 647/* speaker and headset mutes, for audio pops and clicks */ 648static int sn95031_pcm_hs_mute(struct snd_soc_dai *dai, int mute) 649{ 650 snd_soc_update_bits(dai->codec, 651 SN95031_HSLVOLCTRL, BIT(7), (!mute << 7)); 652 snd_soc_update_bits(dai->codec, 653 SN95031_HSRVOLCTRL, BIT(7), (!mute << 7)); 654 return 0; 655} 656 657static int sn95031_pcm_spkr_mute(struct snd_soc_dai *dai, int mute) 658{ 659 snd_soc_update_bits(dai->codec, 660 SN95031_IHFLVOLCTRL, BIT(7), (!mute << 7)); 661 snd_soc_update_bits(dai->codec, 662 SN95031_IHFRVOLCTRL, BIT(7), (!mute << 7)); 663 return 0; 664} 665 666static int sn95031_pcm_hw_params(struct snd_pcm_substream *substream, 667 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) 668{ 669 unsigned int format, rate; 670 671 switch (params_width(params)) { 672 case 16: 673 format = BIT(4)|BIT(5); 674 break; 675 676 case 24: 677 format = 0; 678 break; 679 default: 680 return -EINVAL; 681 } 682 snd_soc_update_bits(dai->codec, SN95031_PCM2C2, 683 BIT(4)|BIT(5), format); 684 685 switch (params_rate(params)) { 686 case 48000: 687 pr_debug("RATE_48000\n"); 688 rate = 0; 689 break; 690 691 case 44100: 692 pr_debug("RATE_44100\n"); 693 rate = BIT(7); 694 break; 695 696 default: 697 pr_err("ERR rate %d\n", params_rate(params)); 698 return -EINVAL; 699 } 700 snd_soc_update_bits(dai->codec, SN95031_PCM1C1, BIT(7), rate); 701 702 return 0; 703} 704 705/* Codec DAI section */ 706static const struct snd_soc_dai_ops sn95031_headset_dai_ops = { 707 .digital_mute = sn95031_pcm_hs_mute, 708 .hw_params = sn95031_pcm_hw_params, 709}; 710 711static const struct snd_soc_dai_ops sn95031_speaker_dai_ops = { 712 .digital_mute = sn95031_pcm_spkr_mute, 713 .hw_params = sn95031_pcm_hw_params, 714}; 715 716static const struct snd_soc_dai_ops sn95031_vib1_dai_ops = { 717 .hw_params = sn95031_pcm_hw_params, 718}; 719 720static const struct snd_soc_dai_ops sn95031_vib2_dai_ops = { 721 .hw_params = sn95031_pcm_hw_params, 722}; 723 724static struct snd_soc_dai_driver sn95031_dais[] = { 725{ 726 .name = "SN95031 Headset", 727 .playback = { 728 .stream_name = "Headset", 729 .channels_min = 2, 730 .channels_max = 2, 731 .rates = SN95031_RATES, 732 .formats = SN95031_FORMATS, 733 }, 734 .capture = { 735 .stream_name = "Capture", 736 .channels_min = 1, 737 .channels_max = 5, 738 .rates = SN95031_RATES, 739 .formats = SN95031_FORMATS, 740 }, 741 .ops = &sn95031_headset_dai_ops, 742}, 743{ .name = "SN95031 Speaker", 744 .playback = { 745 .stream_name = "Speaker", 746 .channels_min = 2, 747 .channels_max = 2, 748 .rates = SN95031_RATES, 749 .formats = SN95031_FORMATS, 750 }, 751 .ops = &sn95031_speaker_dai_ops, 752}, 753{ .name = "SN95031 Vibra1", 754 .playback = { 755 .stream_name = "Vibra1", 756 .channels_min = 1, 757 .channels_max = 1, 758 .rates = SN95031_RATES, 759 .formats = SN95031_FORMATS, 760 }, 761 .ops = &sn95031_vib1_dai_ops, 762}, 763{ .name = "SN95031 Vibra2", 764 .playback = { 765 .stream_name = "Vibra2", 766 .channels_min = 1, 767 .channels_max = 1, 768 .rates = SN95031_RATES, 769 .formats = SN95031_FORMATS, 770 }, 771 .ops = &sn95031_vib2_dai_ops, 772}, 773}; 774 775static inline void sn95031_disable_jack_btn(struct snd_soc_codec *codec) 776{ 777 snd_soc_write(codec, SN95031_BTNCTRL2, 0x00); 778} 779 780static inline void sn95031_enable_jack_btn(struct snd_soc_codec *codec) 781{ 782 snd_soc_write(codec, SN95031_BTNCTRL1, 0x77); 783 snd_soc_write(codec, SN95031_BTNCTRL2, 0x01); 784} 785 786static int sn95031_get_headset_state(struct snd_soc_codec *codec, 787 struct snd_soc_jack *mfld_jack) 788{ 789 int micbias = sn95031_get_mic_bias(codec); 790 791 int jack_type = snd_soc_jack_get_type(mfld_jack, micbias); 792 793 pr_debug("jack type detected = %d\n", jack_type); 794 if (jack_type == SND_JACK_HEADSET) 795 sn95031_enable_jack_btn(codec); 796 return jack_type; 797} 798 799void sn95031_jack_detection(struct snd_soc_codec *codec, 800 struct mfld_jack_data *jack_data) 801{ 802 unsigned int status; 803 unsigned int mask = SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_HEADSET; 804 805 pr_debug("interrupt id read in sram = 0x%x\n", jack_data->intr_id); 806 if (jack_data->intr_id & 0x1) { 807 pr_debug("short_push detected\n"); 808 status = SND_JACK_HEADSET | SND_JACK_BTN_0; 809 } else if (jack_data->intr_id & 0x2) { 810 pr_debug("long_push detected\n"); 811 status = SND_JACK_HEADSET | SND_JACK_BTN_1; 812 } else if (jack_data->intr_id & 0x4) { 813 pr_debug("headset or headphones inserted\n"); 814 status = sn95031_get_headset_state(codec, jack_data->mfld_jack); 815 } else if (jack_data->intr_id & 0x8) { 816 pr_debug("headset or headphones removed\n"); 817 status = 0; 818 sn95031_disable_jack_btn(codec); 819 } else { 820 pr_err("unidentified interrupt\n"); 821 return; 822 } 823 824 snd_soc_jack_report(jack_data->mfld_jack, status, mask); 825 /*button pressed and released so we send explicit button release */ 826 if ((status & SND_JACK_BTN_0) | (status & SND_JACK_BTN_1)) 827 snd_soc_jack_report(jack_data->mfld_jack, 828 SND_JACK_HEADSET, mask); 829} 830EXPORT_SYMBOL_GPL(sn95031_jack_detection); 831 832/* codec registration */ 833static int sn95031_codec_probe(struct snd_soc_codec *codec) 834{ 835 pr_debug("codec_probe called\n"); 836 837 /* PCM interface config 838 * This sets the pcm rx slot conguration to max 6 slots 839 * for max 4 dais (2 stereo and 2 mono) 840 */ 841 snd_soc_write(codec, SN95031_PCM2RXSLOT01, 0x10); 842 snd_soc_write(codec, SN95031_PCM2RXSLOT23, 0x32); 843 snd_soc_write(codec, SN95031_PCM2RXSLOT45, 0x54); 844 snd_soc_write(codec, SN95031_PCM2TXSLOT01, 0x10); 845 snd_soc_write(codec, SN95031_PCM2TXSLOT23, 0x32); 846 /* pcm port setting 847 * This sets the pcm port to slave and clock at 19.2Mhz which 848 * can support 6slots, sampling rate set per stream in hw-params 849 */ 850 snd_soc_write(codec, SN95031_PCM1C1, 0x00); 851 snd_soc_write(codec, SN95031_PCM2C1, 0x01); 852 snd_soc_write(codec, SN95031_PCM2C2, 0x0A); 853 snd_soc_write(codec, SN95031_HSMIXER, BIT(0)|BIT(4)); 854 /* vendor vibra workround, the vibras are muted by 855 * custom register so unmute them 856 */ 857 snd_soc_write(codec, SN95031_SSR5, 0x80); 858 snd_soc_write(codec, SN95031_SSR6, 0x80); 859 snd_soc_write(codec, SN95031_VIB1C5, 0x00); 860 snd_soc_write(codec, SN95031_VIB2C5, 0x00); 861 /* configure vibras for pcm port */ 862 snd_soc_write(codec, SN95031_VIB1C3, 0x00); 863 snd_soc_write(codec, SN95031_VIB2C3, 0x00); 864 865 /* soft mute ramp time */ 866 snd_soc_write(codec, SN95031_SOFTMUTE, 0x3); 867 /* fix the initial volume at 1dB, 868 * default in +9dB, 869 * 1dB give optimal swing on DAC, amps 870 */ 871 snd_soc_write(codec, SN95031_HSLVOLCTRL, 0x08); 872 snd_soc_write(codec, SN95031_HSRVOLCTRL, 0x08); 873 snd_soc_write(codec, SN95031_IHFLVOLCTRL, 0x08); 874 snd_soc_write(codec, SN95031_IHFRVOLCTRL, 0x08); 875 /* dac mode and lineout workaround */ 876 snd_soc_write(codec, SN95031_SSR2, 0x10); 877 snd_soc_write(codec, SN95031_SSR3, 0x40); 878 879 return 0; 880} 881 882static struct snd_soc_codec_driver sn95031_codec = { 883 .probe = sn95031_codec_probe, 884 .set_bias_level = sn95031_set_vaud_bias, 885 .idle_bias_off = true, 886 887 .controls = sn95031_snd_controls, 888 .num_controls = ARRAY_SIZE(sn95031_snd_controls), 889 .dapm_widgets = sn95031_dapm_widgets, 890 .num_dapm_widgets = ARRAY_SIZE(sn95031_dapm_widgets), 891 .dapm_routes = sn95031_audio_map, 892 .num_dapm_routes = ARRAY_SIZE(sn95031_audio_map), 893}; 894 895static int sn95031_device_probe(struct platform_device *pdev) 896{ 897 struct regmap *regmap; 898 899 pr_debug("codec device probe called for %s\n", dev_name(&pdev->dev)); 900 901 regmap = devm_regmap_init(&pdev->dev, NULL, NULL, &sn95031_regmap); 902 if (IS_ERR(regmap)) 903 return PTR_ERR(regmap); 904 905 return snd_soc_register_codec(&pdev->dev, &sn95031_codec, 906 sn95031_dais, ARRAY_SIZE(sn95031_dais)); 907} 908 909static int sn95031_device_remove(struct platform_device *pdev) 910{ 911 pr_debug("codec device remove called\n"); 912 snd_soc_unregister_codec(&pdev->dev); 913 return 0; 914} 915 916static struct platform_driver sn95031_codec_driver = { 917 .driver = { 918 .name = "sn95031", 919 }, 920 .probe = sn95031_device_probe, 921 .remove = sn95031_device_remove, 922}; 923 924module_platform_driver(sn95031_codec_driver); 925 926MODULE_DESCRIPTION("ASoC TI SN95031 codec driver"); 927MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>"); 928MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>"); 929MODULE_LICENSE("GPL v2"); 930MODULE_ALIAS("platform:sn95031"); 931