sound/soc/codecs/sn95031.c

   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 */
  49 static 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 */
  56 static 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  */
  81 static 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. */
 102 static 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. */
 140 static 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
 167 static 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
 179 static int sn95031_write(void *ctx, unsigned int reg, unsigned int value)
 180 {
 181         return intel_scu_ipc_iowrite8(reg, value);
 182 }
 183
 184 static const struct regmap_config sn95031_regmap = {
 185         .reg_read = sn95031_read,
 186         .reg_write = sn95031_write,
 187 };
 188
 189 static 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
 233 static int sn95031_vhs_event(struct snd_soc_dapm_widget *w,
 234                     struct snd_kcontrol *kcontrol, int event)
 235 {
 236         if (SND_SOC_DAPM_EVENT_ON(event)) {
 237                 pr_debug("VHS SND_SOC_DAPM_EVENT_ON doing rail startup now\n");
 238                 /* power up the rail */
 239                 snd_soc_write(w->codec, SN95031_VHSP, 0x3D);
 240                 snd_soc_write(w->codec, SN95031_VHSN, 0x3F);
 241                 msleep(1);
 242         } else if (SND_SOC_DAPM_EVENT_OFF(event)) {
 243                 pr_debug("VHS SND_SOC_DAPM_EVENT_OFF doing rail shutdown\n");
 244                 snd_soc_write(w->codec, SN95031_VHSP, 0xC4);
 245                 snd_soc_write(w->codec, SN95031_VHSN, 0x04);
 246         }
 247         return 0;
 248 }
 249
 250 static int sn95031_vihf_event(struct snd_soc_dapm_widget *w,
 251                     struct snd_kcontrol *kcontrol, int event)
 252 {
 253         if (SND_SOC_DAPM_EVENT_ON(event)) {
 254                 pr_debug("VIHF SND_SOC_DAPM_EVENT_ON doing rail startup now\n");
 255                 /* power up the rail */
 256                 snd_soc_write(w->codec, SN95031_VIHF, 0x27);
 257                 msleep(1);
 258         } else if (SND_SOC_DAPM_EVENT_OFF(event)) {
 259                 pr_debug("VIHF SND_SOC_DAPM_EVENT_OFF doing rail shutdown\n");
 260                 snd_soc_write(w->codec, SN95031_VIHF, 0x24);
 261         }
 262         return 0;
 263 }
 264
 265 static int sn95031_dmic12_event(struct snd_soc_dapm_widget *w,
 266                         struct snd_kcontrol *k, int event)
 267 {
 268         unsigned int ldo = 0, clk_dir = 0, data_dir = 0;
 269
 270         if (SND_SOC_DAPM_EVENT_ON(event)) {
 271                 ldo = BIT(5)|BIT(4);
 272                 clk_dir = BIT(0);
 273                 data_dir = BIT(7);
 274         }
 275         /* program DMIC LDO, clock and set clock */
 276         snd_soc_update_bits(w->codec, SN95031_MICBIAS, BIT(5)|BIT(4), ldo);
 277         snd_soc_update_bits(w->codec, SN95031_DMICBUF0123, BIT(0), clk_dir);
 278         snd_soc_update_bits(w->codec, SN95031_DMICBUF0123, BIT(7), data_dir);
 279         return 0;
 280 }
 281
 282 static int sn95031_dmic34_event(struct snd_soc_dapm_widget *w,
 283                         struct snd_kcontrol *k, int event)
 284 {
 285         unsigned int ldo = 0, clk_dir = 0, data_dir = 0;
 286
 287         if (SND_SOC_DAPM_EVENT_ON(event)) {
 288                 ldo = BIT(5)|BIT(4);
 289                 clk_dir = BIT(2);
 290                 data_dir = BIT(1);
 291         }
 292         /* program DMIC LDO, clock and set clock */
 293         snd_soc_update_bits(w->codec, SN95031_MICBIAS, BIT(5)|BIT(4), ldo);
 294         snd_soc_update_bits(w->codec, SN95031_DMICBUF0123, BIT(2), clk_dir);
 295         snd_soc_update_bits(w->codec, SN95031_DMICBUF45, BIT(1), data_dir);
 296         return 0;
 297 }
 298
 299 static int sn95031_dmic56_event(struct snd_soc_dapm_widget *w,
 300                         struct snd_kcontrol *k, int event)
 301 {
 302         unsigned int ldo = 0;
 303
 304         if (SND_SOC_DAPM_EVENT_ON(event))
 305                 ldo = BIT(7)|BIT(6);
 306
 307         /* program DMIC LDO */
 308         snd_soc_update_bits(w->codec, SN95031_MICBIAS, BIT(7)|BIT(6), ldo);
 309         return 0;
 310 }
 311
 312 /* mux controls */
 313 static const char *sn95031_mic_texts[] = { "AMIC", "LineIn" };
 314
 315 static const struct soc_enum sn95031_micl_enum =
 316         SOC_ENUM_SINGLE(SN95031_ADCCONFIG, 1, 2, sn95031_mic_texts);
 317
 318 static const struct snd_kcontrol_new sn95031_micl_mux_control =
 319         SOC_DAPM_ENUM("Route", sn95031_micl_enum);
 320
 321 static const struct soc_enum sn95031_micr_enum =
 322         SOC_ENUM_SINGLE(SN95031_ADCCONFIG, 3, 2, sn95031_mic_texts);
 323
 324 static const struct snd_kcontrol_new sn95031_micr_mux_control =
 325         SOC_DAPM_ENUM("Route", sn95031_micr_enum);
 326
 327 static const char *sn95031_input_texts[] = {    "DMIC1", "DMIC2", "DMIC3",
 328                                                 "DMIC4", "DMIC5", "DMIC6",
 329                                                 "ADC Left", "ADC Right" };
 330
 331 static const struct soc_enum sn95031_input1_enum =
 332         SOC_ENUM_SINGLE(SN95031_AUDIOMUX12, 0, 8, sn95031_input_texts);
 333
 334 static const struct snd_kcontrol_new sn95031_input1_mux_control =
 335         SOC_DAPM_ENUM("Route", sn95031_input1_enum);
 336
 337 static const struct soc_enum sn95031_input2_enum =
 338         SOC_ENUM_SINGLE(SN95031_AUDIOMUX12, 4, 8, sn95031_input_texts);
 339
 340 static const struct snd_kcontrol_new sn95031_input2_mux_control =
 341         SOC_DAPM_ENUM("Route", sn95031_input2_enum);
 342
 343 static const struct soc_enum sn95031_input3_enum =
 344         SOC_ENUM_SINGLE(SN95031_AUDIOMUX34, 0, 8, sn95031_input_texts);
 345
 346 static const struct snd_kcontrol_new sn95031_input3_mux_control =
 347         SOC_DAPM_ENUM("Route", sn95031_input3_enum);
 348
 349 static const struct soc_enum sn95031_input4_enum =
 350         SOC_ENUM_SINGLE(SN95031_AUDIOMUX34, 4, 8, sn95031_input_texts);
 351
 352 static const struct snd_kcontrol_new sn95031_input4_mux_control =
 353         SOC_DAPM_ENUM("Route", sn95031_input4_enum);
 354
 355 /* capture path controls */
 356
 357 static const char *sn95031_micmode_text[] = {"Single Ended", "Differential"};
 358
 359 /* 0dB to 30dB in 10dB steps */
 360 static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 10, 0);
 361
 362 static const struct soc_enum sn95031_micmode1_enum =
 363         SOC_ENUM_SINGLE(SN95031_MICAMP1, 1, 2, sn95031_micmode_text);
 364 static const struct soc_enum sn95031_micmode2_enum =
 365         SOC_ENUM_SINGLE(SN95031_MICAMP2, 1, 2, sn95031_micmode_text);
 366
 367 static const char *sn95031_dmic_cfg_text[] = {"GPO", "DMIC"};
 368
 369 static const struct soc_enum sn95031_dmic12_cfg_enum =
 370         SOC_ENUM_SINGLE(SN95031_DMICMUX, 0, 2, sn95031_dmic_cfg_text);
 371 static const struct soc_enum sn95031_dmic34_cfg_enum =
 372         SOC_ENUM_SINGLE(SN95031_DMICMUX, 1, 2, sn95031_dmic_cfg_text);
 373 static const struct soc_enum sn95031_dmic56_cfg_enum =
 374         SOC_ENUM_SINGLE(SN95031_DMICMUX, 2, 2, sn95031_dmic_cfg_text);
 375
 376 static const struct snd_kcontrol_new sn95031_snd_controls[] = {
 377         SOC_ENUM("Mic1Mode Capture Route", sn95031_micmode1_enum),
 378         SOC_ENUM("Mic2Mode Capture Route", sn95031_micmode2_enum),
 379         SOC_ENUM("DMIC12 Capture Route", sn95031_dmic12_cfg_enum),
 380         SOC_ENUM("DMIC34 Capture Route", sn95031_dmic34_cfg_enum),
 381         SOC_ENUM("DMIC56 Capture Route", sn95031_dmic56_cfg_enum),
 382         SOC_SINGLE_TLV("Mic1 Capture Volume", SN95031_MICAMP1,
 383                         2, 4, 0, mic_tlv),
 384         SOC_SINGLE_TLV("Mic2 Capture Volume", SN95031_MICAMP2,
 385                         2, 4, 0, mic_tlv),
 386 };
 387
 388 /* DAPM widgets */
 389 static const struct snd_soc_dapm_widget sn95031_dapm_widgets[] = {
 390
 391         /* all end points mic, hs etc */
 392         SND_SOC_DAPM_OUTPUT("HPOUTL"),
 393         SND_SOC_DAPM_OUTPUT("HPOUTR"),
 394         SND_SOC_DAPM_OUTPUT("EPOUT"),
 395         SND_SOC_DAPM_OUTPUT("IHFOUTL"),
 396         SND_SOC_DAPM_OUTPUT("IHFOUTR"),
 397         SND_SOC_DAPM_OUTPUT("LINEOUTL"),
 398         SND_SOC_DAPM_OUTPUT("LINEOUTR"),
 399         SND_SOC_DAPM_OUTPUT("VIB1OUT"),
 400         SND_SOC_DAPM_OUTPUT("VIB2OUT"),
 401
 402         SND_SOC_DAPM_INPUT("AMIC1"), /* headset mic */
 403         SND_SOC_DAPM_INPUT("AMIC2"),
 404         SND_SOC_DAPM_INPUT("DMIC1"),
 405         SND_SOC_DAPM_INPUT("DMIC2"),
 406         SND_SOC_DAPM_INPUT("DMIC3"),
 407         SND_SOC_DAPM_INPUT("DMIC4"),
 408         SND_SOC_DAPM_INPUT("DMIC5"),
 409         SND_SOC_DAPM_INPUT("DMIC6"),
 410         SND_SOC_DAPM_INPUT("LINEINL"),
 411         SND_SOC_DAPM_INPUT("LINEINR"),
 412
 413         SND_SOC_DAPM_MICBIAS("AMIC1Bias", SN95031_MICBIAS, 2, 0),
 414         SND_SOC_DAPM_MICBIAS("AMIC2Bias", SN95031_MICBIAS, 3, 0),
 415         SND_SOC_DAPM_MICBIAS("DMIC12Bias", SN95031_DMICMUX, 3, 0),
 416         SND_SOC_DAPM_MICBIAS("DMIC34Bias", SN95031_DMICMUX, 4, 0),
 417         SND_SOC_DAPM_MICBIAS("DMIC56Bias", SN95031_DMICMUX, 5, 0),
 418
 419         SND_SOC_DAPM_SUPPLY("DMIC12supply", SN95031_DMICLK, 0, 0,
 420                                 sn95031_dmic12_event,
 421                                 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 422         SND_SOC_DAPM_SUPPLY("DMIC34supply", SN95031_DMICLK, 1, 0,
 423                                 sn95031_dmic34_event,
 424                                 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 425         SND_SOC_DAPM_SUPPLY("DMIC56supply", SN95031_DMICLK, 2, 0,
 426                                 sn95031_dmic56_event,
 427                                 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 428
 429         SND_SOC_DAPM_AIF_OUT("PCM_Out", "Capture", 0,
 430                         SND_SOC_NOPM, 0, 0),
 431
 432         SND_SOC_DAPM_SUPPLY("Headset Rail", SND_SOC_NOPM, 0, 0,
 433                         sn95031_vhs_event,
 434                         SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 435         SND_SOC_DAPM_SUPPLY("Speaker Rail", SND_SOC_NOPM, 0, 0,
 436                         sn95031_vihf_event,
 437                         SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 438
 439         /* playback path driver enables */
 440         SND_SOC_DAPM_PGA("Headset Left Playback",
 441                         SN95031_DRIVEREN, 0, 0, NULL, 0),
 442         SND_SOC_DAPM_PGA("Headset Right Playback",
 443                         SN95031_DRIVEREN, 1, 0, NULL, 0),
 444         SND_SOC_DAPM_PGA("Speaker Left Playback",
 445                         SN95031_DRIVEREN, 2, 0, NULL, 0),
 446         SND_SOC_DAPM_PGA("Speaker Right Playback",
 447                         SN95031_DRIVEREN, 3, 0, NULL, 0),
 448         SND_SOC_DAPM_PGA("Vibra1 Playback",
 449                         SN95031_DRIVEREN, 4, 0, NULL, 0),
 450         SND_SOC_DAPM_PGA("Vibra2 Playback",
 451                         SN95031_DRIVEREN, 5, 0, NULL, 0),
 452         SND_SOC_DAPM_PGA("Earpiece Playback",
 453                         SN95031_DRIVEREN, 6, 0, NULL, 0),
 454         SND_SOC_DAPM_PGA("Lineout Left Playback",
 455                         SN95031_LOCTL, 0, 0, NULL, 0),
 456         SND_SOC_DAPM_PGA("Lineout Right Playback",
 457                         SN95031_LOCTL, 4, 0, NULL, 0),
 458
 459         /* playback path filter enable */
 460         SND_SOC_DAPM_PGA("Headset Left Filter",
 461                         SN95031_HSEPRXCTRL, 4, 0, NULL, 0),
 462         SND_SOC_DAPM_PGA("Headset Right Filter",
 463                         SN95031_HSEPRXCTRL, 5, 0,  NULL, 0),
 464         SND_SOC_DAPM_PGA("Speaker Left Filter",
 465                         SN95031_IHFRXCTRL, 0, 0,  NULL, 0),
 466         SND_SOC_DAPM_PGA("Speaker Right Filter",
 467                         SN95031_IHFRXCTRL, 1, 0,  NULL, 0),
 468
 469         /* DACs */
 470         SND_SOC_DAPM_DAC("HSDAC Left", "Headset",
 471                         SN95031_DACCONFIG, 0, 0),
 472         SND_SOC_DAPM_DAC("HSDAC Right", "Headset",
 473                         SN95031_DACCONFIG, 1, 0),
 474         SND_SOC_DAPM_DAC("IHFDAC Left", "Speaker",
 475                         SN95031_DACCONFIG, 2, 0),
 476         SND_SOC_DAPM_DAC("IHFDAC Right", "Speaker",
 477                         SN95031_DACCONFIG, 3, 0),
 478         SND_SOC_DAPM_DAC("Vibra1 DAC", "Vibra1",
 479                         SN95031_VIB1C5, 1, 0),
 480         SND_SOC_DAPM_DAC("Vibra2 DAC", "Vibra2",
 481                         SN95031_VIB2C5, 1, 0),
 482
 483         /* capture widgets */
 484         SND_SOC_DAPM_PGA("LineIn Enable Left", SN95031_MICAMP1,
 485                                 7, 0, NULL, 0),
 486         SND_SOC_DAPM_PGA("LineIn Enable Right", SN95031_MICAMP2,
 487                                 7, 0, NULL, 0),
 488
 489         SND_SOC_DAPM_PGA("MIC1 Enable", SN95031_MICAMP1, 0, 0, NULL, 0),
 490         SND_SOC_DAPM_PGA("MIC2 Enable", SN95031_MICAMP2, 0, 0, NULL, 0),
 491         SND_SOC_DAPM_PGA("TX1 Enable", SN95031_AUDIOTXEN, 2, 0, NULL, 0),
 492         SND_SOC_DAPM_PGA("TX2 Enable", SN95031_AUDIOTXEN, 3, 0, NULL, 0),
 493         SND_SOC_DAPM_PGA("TX3 Enable", SN95031_AUDIOTXEN, 4, 0, NULL, 0),
 494         SND_SOC_DAPM_PGA("TX4 Enable", SN95031_AUDIOTXEN, 5, 0, NULL, 0),
 495
 496         /* ADC have null stream as they will be turned ON by TX path */
 497         SND_SOC_DAPM_ADC("ADC Left", NULL,
 498                         SN95031_ADCCONFIG, 0, 0),
 499         SND_SOC_DAPM_ADC("ADC Right", NULL,
 500                         SN95031_ADCCONFIG, 2, 0),
 501
 502         SND_SOC_DAPM_MUX("Mic_InputL Capture Route",
 503                         SND_SOC_NOPM, 0, 0, &sn95031_micl_mux_control),
 504         SND_SOC_DAPM_MUX("Mic_InputR Capture Route",
 505                         SND_SOC_NOPM, 0, 0, &sn95031_micr_mux_control),
 506
 507         SND_SOC_DAPM_MUX("Txpath1 Capture Route",
 508                         SND_SOC_NOPM, 0, 0, &sn95031_input1_mux_control),
 509         SND_SOC_DAPM_MUX("Txpath2 Capture Route",
 510                         SND_SOC_NOPM, 0, 0, &sn95031_input2_mux_control),
 511         SND_SOC_DAPM_MUX("Txpath3 Capture Route",
 512                         SND_SOC_NOPM, 0, 0, &sn95031_input3_mux_control),
 513         SND_SOC_DAPM_MUX("Txpath4 Capture Route",
 514                         SND_SOC_NOPM, 0, 0, &sn95031_input4_mux_control),
 515
 516 };
 517
 518 static const struct snd_soc_dapm_route sn95031_audio_map[] = {
 519         /* headset and earpiece map */
 520         { "HPOUTL", NULL, "Headset Rail"},
 521         { "HPOUTR", NULL, "Headset Rail"},
 522         { "HPOUTL", NULL, "Headset Left Playback" },
 523         { "HPOUTR", NULL, "Headset Right Playback" },
 524         { "EPOUT", NULL, "Earpiece Playback" },
 525         { "Headset Left Playback", NULL, "Headset Left Filter"},
 526         { "Headset Right Playback", NULL, "Headset Right Filter"},
 527         { "Earpiece Playback", NULL, "Headset Left Filter"},
 528         { "Headset Left Filter", NULL, "HSDAC Left"},
 529         { "Headset Right Filter", NULL, "HSDAC Right"},
 530
 531         /* speaker map */
 532         { "IHFOUTL", NULL, "Speaker Rail"},
 533         { "IHFOUTR", NULL, "Speaker Rail"},
 534         { "IHFOUTL", "NULL", "Speaker Left Playback"},
 535         { "IHFOUTR", "NULL", "Speaker Right Playback"},
 536         { "Speaker Left Playback", NULL, "Speaker Left Filter"},
 537         { "Speaker Right Playback", NULL, "Speaker Right Filter"},
 538         { "Speaker Left Filter", NULL, "IHFDAC Left"},
 539         { "Speaker Right Filter", NULL, "IHFDAC Right"},
 540
 541         /* vibra map */
 542         { "VIB1OUT", NULL, "Vibra1 Playback"},
 543         { "Vibra1 Playback", NULL, "Vibra1 DAC"},
 544
 545         { "VIB2OUT", NULL, "Vibra2 Playback"},
 546         { "Vibra2 Playback", NULL, "Vibra2 DAC"},
 547
 548         /* lineout */
 549         { "LINEOUTL", NULL, "Lineout Left Playback"},
 550         { "LINEOUTR", NULL, "Lineout Right Playback"},
 551         { "Lineout Left Playback", NULL, "Headset Left Filter"},
 552         { "Lineout Left Playback", NULL, "Speaker Left Filter"},
 553         { "Lineout Left Playback", NULL, "Vibra1 DAC"},
 554         { "Lineout Right Playback", NULL, "Headset Right Filter"},
 555         { "Lineout Right Playback", NULL, "Speaker Right Filter"},
 556         { "Lineout Right Playback", NULL, "Vibra2 DAC"},
 557
 558         /* Headset (AMIC1) mic */
 559         { "AMIC1Bias", NULL, "AMIC1"},
 560         { "MIC1 Enable", NULL, "AMIC1Bias"},
 561         { "Mic_InputL Capture Route", "AMIC", "MIC1 Enable"},
 562
 563         /* AMIC2 */
 564         { "AMIC2Bias", NULL, "AMIC2"},
 565         { "MIC2 Enable", NULL, "AMIC2Bias"},
 566         { "Mic_InputR Capture Route", "AMIC", "MIC2 Enable"},
 567
 568
 569         /* Linein */
 570         { "LineIn Enable Left", NULL, "LINEINL"},
 571         { "LineIn Enable Right", NULL, "LINEINR"},
 572         { "Mic_InputL Capture Route", "LineIn", "LineIn Enable Left"},
 573         { "Mic_InputR Capture Route", "LineIn", "LineIn Enable Right"},
 574
 575         /* ADC connection */
 576         { "ADC Left", NULL, "Mic_InputL Capture Route"},
 577         { "ADC Right", NULL, "Mic_InputR Capture Route"},
 578
 579         /*DMIC connections */
 580         { "DMIC1", NULL, "DMIC12supply"},
 581         { "DMIC2", NULL, "DMIC12supply"},
 582         { "DMIC3", NULL, "DMIC34supply"},
 583         { "DMIC4", NULL, "DMIC34supply"},
 584         { "DMIC5", NULL, "DMIC56supply"},
 585         { "DMIC6", NULL, "DMIC56supply"},
 586
 587         { "DMIC12Bias", NULL, "DMIC1"},
 588         { "DMIC12Bias", NULL, "DMIC2"},
 589         { "DMIC34Bias", NULL, "DMIC3"},
 590         { "DMIC34Bias", NULL, "DMIC4"},
 591         { "DMIC56Bias", NULL, "DMIC5"},
 592         { "DMIC56Bias", NULL, "DMIC6"},
 593
 594         /*TX path inputs*/
 595         { "Txpath1 Capture Route", "ADC Left", "ADC Left"},
 596         { "Txpath2 Capture Route", "ADC Left", "ADC Left"},
 597         { "Txpath3 Capture Route", "ADC Left", "ADC Left"},
 598         { "Txpath4 Capture Route", "ADC Left", "ADC Left"},
 599         { "Txpath1 Capture Route", "ADC Right", "ADC Right"},
 600         { "Txpath2 Capture Route", "ADC Right", "ADC Right"},
 601         { "Txpath3 Capture Route", "ADC Right", "ADC Right"},
 602         { "Txpath4 Capture Route", "ADC Right", "ADC Right"},
 603         { "Txpath1 Capture Route", "DMIC1", "DMIC1"},
 604         { "Txpath2 Capture Route", "DMIC1", "DMIC1"},
 605         { "Txpath3 Capture Route", "DMIC1", "DMIC1"},
 606         { "Txpath4 Capture Route", "DMIC1", "DMIC1"},
 607         { "Txpath1 Capture Route", "DMIC2", "DMIC2"},
 608         { "Txpath2 Capture Route", "DMIC2", "DMIC2"},
 609         { "Txpath3 Capture Route", "DMIC2", "DMIC2"},
 610         { "Txpath4 Capture Route", "DMIC2", "DMIC2"},
 611         { "Txpath1 Capture Route", "DMIC3", "DMIC3"},
 612         { "Txpath2 Capture Route", "DMIC3", "DMIC3"},
 613         { "Txpath3 Capture Route", "DMIC3", "DMIC3"},
 614         { "Txpath4 Capture Route", "DMIC3", "DMIC3"},
 615         { "Txpath1 Capture Route", "DMIC4", "DMIC4"},
 616         { "Txpath2 Capture Route", "DMIC4", "DMIC4"},
 617         { "Txpath3 Capture Route", "DMIC4", "DMIC4"},
 618         { "Txpath4 Capture Route", "DMIC4", "DMIC4"},
 619         { "Txpath1 Capture Route", "DMIC5", "DMIC5"},
 620         { "Txpath2 Capture Route", "DMIC5", "DMIC5"},
 621         { "Txpath3 Capture Route", "DMIC5", "DMIC5"},
 622         { "Txpath4 Capture Route", "DMIC5", "DMIC5"},
 623         { "Txpath1 Capture Route", "DMIC6", "DMIC6"},
 624         { "Txpath2 Capture Route", "DMIC6", "DMIC6"},
 625         { "Txpath3 Capture Route", "DMIC6", "DMIC6"},
 626         { "Txpath4 Capture Route", "DMIC6", "DMIC6"},
 627
 628         /* tx path */
 629         { "TX1 Enable", NULL, "Txpath1 Capture Route"},
 630         { "TX2 Enable", NULL, "Txpath2 Capture Route"},
 631         { "TX3 Enable", NULL, "Txpath3 Capture Route"},
 632         { "TX4 Enable", NULL, "Txpath4 Capture Route"},
 633         { "PCM_Out", NULL, "TX1 Enable"},
 634         { "PCM_Out", NULL, "TX2 Enable"},
 635         { "PCM_Out", NULL, "TX3 Enable"},
 636         { "PCM_Out", NULL, "TX4 Enable"},
 637
 638 };
 639
 640 /* speaker and headset mutes, for audio pops and clicks */
 641 static int sn95031_pcm_hs_mute(struct snd_soc_dai *dai, int mute)
 642 {
 643         snd_soc_update_bits(dai->codec,
 644                         SN95031_HSLVOLCTRL, BIT(7), (!mute << 7));
 645         snd_soc_update_bits(dai->codec,
 646                         SN95031_HSRVOLCTRL, BIT(7), (!mute << 7));
 647         return 0;
 648 }
 649
 650 static int sn95031_pcm_spkr_mute(struct snd_soc_dai *dai, int mute)
 651 {
 652         snd_soc_update_bits(dai->codec,
 653                         SN95031_IHFLVOLCTRL, BIT(7), (!mute << 7));
 654         snd_soc_update_bits(dai->codec,
 655                         SN95031_IHFRVOLCTRL, BIT(7), (!mute << 7));
 656         return 0;
 657 }
 658
 659 static int sn95031_pcm_hw_params(struct snd_pcm_substream *substream,
 660                 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
 661 {
 662         unsigned int format, rate;
 663
 664         switch (params_format(params)) {
 665         case SNDRV_PCM_FORMAT_S16_LE:
 666                 format = BIT(4)|BIT(5);
 667                 break;
 668
 669         case SNDRV_PCM_FORMAT_S24_LE:
 670                 format = 0;
 671                 break;
 672         default:
 673                 return -EINVAL;
 674         }
 675         snd_soc_update_bits(dai->codec, SN95031_PCM2C2,
 676                         BIT(4)|BIT(5), format);
 677
 678         switch (params_rate(params)) {
 679         case 48000:
 680                 pr_debug("RATE_48000\n");
 681                 rate = 0;
 682                 break;
 683
 684         case 44100:
 685                 pr_debug("RATE_44100\n");
 686                 rate = BIT(7);
 687                 break;
 688
 689         default:
 690                 pr_err("ERR rate %d\n", params_rate(params));
 691                 return -EINVAL;
 692         }
 693         snd_soc_update_bits(dai->codec, SN95031_PCM1C1, BIT(7), rate);
 694
 695         return 0;
 696 }
 697
 698 /* Codec DAI section */
 699 static const struct snd_soc_dai_ops sn95031_headset_dai_ops = {
 700         .digital_mute   = sn95031_pcm_hs_mute,
 701         .hw_params      = sn95031_pcm_hw_params,
 702 };
 703
 704 static const struct snd_soc_dai_ops sn95031_speaker_dai_ops = {
 705         .digital_mute   = sn95031_pcm_spkr_mute,
 706         .hw_params      = sn95031_pcm_hw_params,
 707 };
 708
 709 static const struct snd_soc_dai_ops sn95031_vib1_dai_ops = {
 710         .hw_params      = sn95031_pcm_hw_params,
 711 };
 712
 713 static const struct snd_soc_dai_ops sn95031_vib2_dai_ops = {
 714         .hw_params      = sn95031_pcm_hw_params,
 715 };
 716
 717 static struct snd_soc_dai_driver sn95031_dais[] = {
 718 {
 719         .name = "SN95031 Headset",
 720         .playback = {
 721                 .stream_name = "Headset",
 722                 .channels_min = 2,
 723                 .channels_max = 2,
 724                 .rates = SN95031_RATES,
 725                 .formats = SN95031_FORMATS,
 726         },
 727         .capture = {
 728                 .stream_name = "Capture",
 729                 .channels_min = 1,
 730                 .channels_max = 5,
 731                 .rates = SN95031_RATES,
 732                 .formats = SN95031_FORMATS,
 733         },
 734         .ops = &sn95031_headset_dai_ops,
 735 },
 736 {       .name = "SN95031 Speaker",
 737         .playback = {
 738                 .stream_name = "Speaker",
 739                 .channels_min = 2,
 740                 .channels_max = 2,
 741                 .rates = SN95031_RATES,
 742                 .formats = SN95031_FORMATS,
 743         },
 744         .ops = &sn95031_speaker_dai_ops,
 745 },
 746 {       .name = "SN95031 Vibra1",
 747         .playback = {
 748                 .stream_name = "Vibra1",
 749                 .channels_min = 1,
 750                 .channels_max = 1,
 751                 .rates = SN95031_RATES,
 752                 .formats = SN95031_FORMATS,
 753         },
 754         .ops = &sn95031_vib1_dai_ops,
 755 },
 756 {       .name = "SN95031 Vibra2",
 757         .playback = {
 758                 .stream_name = "Vibra2",
 759                 .channels_min = 1,
 760                 .channels_max = 1,
 761                 .rates = SN95031_RATES,
 762                 .formats = SN95031_FORMATS,
 763         },
 764         .ops = &sn95031_vib2_dai_ops,
 765 },
 766 };
 767
 768 static inline void sn95031_disable_jack_btn(struct snd_soc_codec *codec)
 769 {
 770         snd_soc_write(codec, SN95031_BTNCTRL2, 0x00);
 771 }
 772
 773 static inline void sn95031_enable_jack_btn(struct snd_soc_codec *codec)
 774 {
 775         snd_soc_write(codec, SN95031_BTNCTRL1, 0x77);
 776         snd_soc_write(codec, SN95031_BTNCTRL2, 0x01);
 777 }
 778
 779 static int sn95031_get_headset_state(struct snd_soc_jack *mfld_jack)
 780 {
 781         int micbias = sn95031_get_mic_bias(mfld_jack->codec);
 782
 783         int jack_type = snd_soc_jack_get_type(mfld_jack, micbias);
 784
 785         pr_debug("jack type detected = %d\n", jack_type);
 786         if (jack_type == SND_JACK_HEADSET)
 787                 sn95031_enable_jack_btn(mfld_jack->codec);
 788         return jack_type;
 789 }
 790
 791 void sn95031_jack_detection(struct mfld_jack_data *jack_data)
 792 {
 793         unsigned int status;
 794         unsigned int mask = SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_HEADSET;
 795
 796         pr_debug("interrupt id read in sram = 0x%x\n", jack_data->intr_id);
 797         if (jack_data->intr_id & 0x1) {
 798                 pr_debug("short_push detected\n");
 799                 status = SND_JACK_HEADSET | SND_JACK_BTN_0;
 800         } else if (jack_data->intr_id & 0x2) {
 801                 pr_debug("long_push detected\n");
 802                 status = SND_JACK_HEADSET | SND_JACK_BTN_1;
 803         } else if (jack_data->intr_id & 0x4) {
 804                 pr_debug("headset or headphones inserted\n");
 805                 status = sn95031_get_headset_state(jack_data->mfld_jack);
 806         } else if (jack_data->intr_id & 0x8) {
 807                 pr_debug("headset or headphones removed\n");
 808                 status = 0;
 809                 sn95031_disable_jack_btn(jack_data->mfld_jack->codec);
 810         } else {
 811                 pr_err("unidentified interrupt\n");
 812                 return;
 813         }
 814
 815         snd_soc_jack_report(jack_data->mfld_jack, status, mask);
 816         /*button pressed and released so we send explicit button release */
 817         if ((status & SND_JACK_BTN_0) | (status & SND_JACK_BTN_1))
 818                 snd_soc_jack_report(jack_data->mfld_jack,
 819                                 SND_JACK_HEADSET, mask);
 820 }
 821 EXPORT_SYMBOL_GPL(sn95031_jack_detection);
 822
 823 /* codec registration */
 824 static int sn95031_codec_probe(struct snd_soc_codec *codec)
 825 {
 826         pr_debug("codec_probe called\n");
 827
 828         snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP);
 829
 830         /* PCM interface config
 831          * This sets the pcm rx slot conguration to max 6 slots
 832          * for max 4 dais (2 stereo and 2 mono)
 833          */
 834         snd_soc_write(codec, SN95031_PCM2RXSLOT01, 0x10);
 835         snd_soc_write(codec, SN95031_PCM2RXSLOT23, 0x32);
 836         snd_soc_write(codec, SN95031_PCM2RXSLOT45, 0x54);
 837         snd_soc_write(codec, SN95031_PCM2TXSLOT01, 0x10);
 838         snd_soc_write(codec, SN95031_PCM2TXSLOT23, 0x32);
 839         /* pcm port setting
 840          * This sets the pcm port to slave and clock at 19.2Mhz which
 841          * can support 6slots, sampling rate set per stream in hw-params
 842          */
 843         snd_soc_write(codec, SN95031_PCM1C1, 0x00);
 844         snd_soc_write(codec, SN95031_PCM2C1, 0x01);
 845         snd_soc_write(codec, SN95031_PCM2C2, 0x0A);
 846         snd_soc_write(codec, SN95031_HSMIXER, BIT(0)|BIT(4));
 847         /* vendor vibra workround, the vibras are muted by
 848          * custom register so unmute them
 849          */
 850         snd_soc_write(codec, SN95031_SSR5, 0x80);
 851         snd_soc_write(codec, SN95031_SSR6, 0x80);
 852         snd_soc_write(codec, SN95031_VIB1C5, 0x00);
 853         snd_soc_write(codec, SN95031_VIB2C5, 0x00);
 854         /* configure vibras for pcm port */
 855         snd_soc_write(codec, SN95031_VIB1C3, 0x00);
 856         snd_soc_write(codec, SN95031_VIB2C3, 0x00);
 857
 858         /* soft mute ramp time */
 859         snd_soc_write(codec, SN95031_SOFTMUTE, 0x3);
 860         /* fix the initial volume at 1dB,
 861          * default in +9dB,
 862          * 1dB give optimal swing on DAC, amps
 863          */
 864         snd_soc_write(codec, SN95031_HSLVOLCTRL, 0x08);
 865         snd_soc_write(codec, SN95031_HSRVOLCTRL, 0x08);
 866         snd_soc_write(codec, SN95031_IHFLVOLCTRL, 0x08);
 867         snd_soc_write(codec, SN95031_IHFRVOLCTRL, 0x08);
 868         /* dac mode and lineout workaround */
 869         snd_soc_write(codec, SN95031_SSR2, 0x10);
 870         snd_soc_write(codec, SN95031_SSR3, 0x40);
 871
 872         snd_soc_add_codec_controls(codec, sn95031_snd_controls,
 873                              ARRAY_SIZE(sn95031_snd_controls));
 874
 875         return 0;
 876 }
 877
 878 static int sn95031_codec_remove(struct snd_soc_codec *codec)
 879 {
 880         pr_debug("codec_remove called\n");
 881         sn95031_set_vaud_bias(codec, SND_SOC_BIAS_OFF);
 882
 883         return 0;
 884 }
 885
 886 static struct snd_soc_codec_driver sn95031_codec = {
 887         .probe          = sn95031_codec_probe,
 888         .remove         = sn95031_codec_remove,
 889         .set_bias_level = sn95031_set_vaud_bias,
 890         .idle_bias_off  = true,
 891         .dapm_widgets   = sn95031_dapm_widgets,
 892         .num_dapm_widgets       = ARRAY_SIZE(sn95031_dapm_widgets),
 893         .dapm_routes    = sn95031_audio_map,
 894         .num_dapm_routes        = ARRAY_SIZE(sn95031_audio_map),
 895 };
 896
 897 static int sn95031_device_probe(struct platform_device *pdev)
 898 {
 899         struct regmap *regmap;
 900
 901         pr_debug("codec device probe called for %s\n", dev_name(&pdev->dev));
 902
 903         regmap = devm_regmap_init(&pdev->dev, NULL, NULL, &sn95031_regmap);
 904         if (IS_ERR(regmap))
 905                 return PTR_ERR(regmap);
 906
 907         return snd_soc_register_codec(&pdev->dev, &sn95031_codec,
 908                         sn95031_dais, ARRAY_SIZE(sn95031_dais));
 909 }
 910
 911 static int sn95031_device_remove(struct platform_device *pdev)
 912 {
 913         pr_debug("codec device remove called\n");
 914         snd_soc_unregister_codec(&pdev->dev);
 915         return 0;
 916 }
 917
 918 static struct platform_driver sn95031_codec_driver = {
 919         .driver         = {
 920                 .name           = "sn95031",
 921                 .owner          = THIS_MODULE,
 922         },
 923         .probe          = sn95031_device_probe,
 924         .remove         = sn95031_device_remove,
 925 };
 926
 927 module_platform_driver(sn95031_codec_driver);
 928
 929 MODULE_DESCRIPTION("ASoC TI SN95031 codec driver");
 930 MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>");
 931 MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>");
 932 MODULE_LICENSE("GPL v2");
 933 MODULE_ALIAS("platform:sn95031");