kernel/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         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
 252 static 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
 269 static 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
 287 static 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
 305 static 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 */
 320 static const char *sn95031_mic_texts[] = { "AMIC", "LineIn" };
 321
 322 static SOC_ENUM_SINGLE_DECL(sn95031_micl_enum,
 323                             SN95031_ADCCONFIG, 1, sn95031_mic_texts);
 324
 325 static const struct snd_kcontrol_new sn95031_micl_mux_control =
 326         SOC_DAPM_ENUM("Route", sn95031_micl_enum);
 327
 328 static SOC_ENUM_SINGLE_DECL(sn95031_micr_enum,
 329                             SN95031_ADCCONFIG, 3, sn95031_mic_texts);
 330
 331 static const struct snd_kcontrol_new sn95031_micr_mux_control =
 332         SOC_DAPM_ENUM("Route", sn95031_micr_enum);
 333
 334 static const char *sn95031_input_texts[] = {    "DMIC1", "DMIC2", "DMIC3",
 335                                                 "DMIC4", "DMIC5", "DMIC6",
 336                                                 "ADC Left", "ADC Right" };
 337
 338 static SOC_ENUM_SINGLE_DECL(sn95031_input1_enum,
 339                             SN95031_AUDIOMUX12, 0, sn95031_input_texts);
 340
 341 static const struct snd_kcontrol_new sn95031_input1_mux_control =
 342         SOC_DAPM_ENUM("Route", sn95031_input1_enum);
 343
 344 static SOC_ENUM_SINGLE_DECL(sn95031_input2_enum,
 345                             SN95031_AUDIOMUX12, 4, sn95031_input_texts);
 346
 347 static const struct snd_kcontrol_new sn95031_input2_mux_control =
 348         SOC_DAPM_ENUM("Route", sn95031_input2_enum);
 349
 350 static SOC_ENUM_SINGLE_DECL(sn95031_input3_enum,
 351                             SN95031_AUDIOMUX34, 0, sn95031_input_texts);
 352
 353 static const struct snd_kcontrol_new sn95031_input3_mux_control =
 354         SOC_DAPM_ENUM("Route", sn95031_input3_enum);
 355
 356 static SOC_ENUM_SINGLE_DECL(sn95031_input4_enum,
 357                             SN95031_AUDIOMUX34, 4, sn95031_input_texts);
 358
 359 static const struct snd_kcontrol_new sn95031_input4_mux_control =
 360         SOC_DAPM_ENUM("Route", sn95031_input4_enum);
 361
 362 /* capture path controls */
 363
 364 static const char *sn95031_micmode_text[] = {"Single Ended", "Differential"};
 365
 366 /* 0dB to 30dB in 10dB steps */
 367 static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 10, 0);
 368
 369 static SOC_ENUM_SINGLE_DECL(sn95031_micmode1_enum,
 370                             SN95031_MICAMP1, 1, sn95031_micmode_text);
 371 static SOC_ENUM_SINGLE_DECL(sn95031_micmode2_enum,
 372                             SN95031_MICAMP2, 1, sn95031_micmode_text);
 373
 374 static const char *sn95031_dmic_cfg_text[] = {"GPO", "DMIC"};
 375
 376 static SOC_ENUM_SINGLE_DECL(sn95031_dmic12_cfg_enum,
 377                             SN95031_DMICMUX, 0, sn95031_dmic_cfg_text);
 378 static SOC_ENUM_SINGLE_DECL(sn95031_dmic34_cfg_enum,
 379                             SN95031_DMICMUX, 1, sn95031_dmic_cfg_text);
 380 static SOC_ENUM_SINGLE_DECL(sn95031_dmic56_cfg_enum,
 381                             SN95031_DMICMUX, 2, sn95031_dmic_cfg_text);
 382
 383 static 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 */
 396 static 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
 525 static 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 */
 648 static 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
 657 static 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
 666 static 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 */
 706 static 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
 711 static 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
 716 static const struct snd_soc_dai_ops sn95031_vib1_dai_ops = {
 717         .hw_params      = sn95031_pcm_hw_params,
 718 };
 719
 720 static const struct snd_soc_dai_ops sn95031_vib2_dai_ops = {
 721         .hw_params      = sn95031_pcm_hw_params,
 722 };
 723
 724 static 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
 775 static inline void sn95031_disable_jack_btn(struct snd_soc_codec *codec)
 776 {
 777         snd_soc_write(codec, SN95031_BTNCTRL2, 0x00);
 778 }
 779
 780 static 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
 786 static 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
 799 void 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 }
 830 EXPORT_SYMBOL_GPL(sn95031_jack_detection);
 831
 832 /* codec registration */
 833 static 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
 882 static 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
 895 static 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
 909 static 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
 916 static struct platform_driver sn95031_codec_driver = {
 917         .driver         = {
 918                 .name           = "sn95031",
 919         },
 920         .probe          = sn95031_device_probe,
 921         .remove         = sn95031_device_remove,
 922 };
 923
 924 module_platform_driver(sn95031_codec_driver);
 925
 926 MODULE_DESCRIPTION("ASoC TI SN95031 codec driver");
 927 MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>");
 928 MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>");
 929 MODULE_LICENSE("GPL v2");
 930 MODULE_ALIAS("platform:sn95031");