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
  32 #include <asm/intel_scu_ipc.h>
  33 #include <sound/pcm.h>
  34 #include <sound/pcm_params.h>
  35 #include <sound/soc.h>
  36 #include <sound/soc-dapm.h>
  37 #include <sound/initval.h>
  38 #include <sound/tlv.h>
  39 #include <sound/jack.h>
  40 #include "sn95031.h"
  41
  42 #define SN95031_RATES (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100)
  43 #define SN95031_FORMATS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE)
  44
  45 /* adc helper functions */
  46
  47 /* enables mic bias voltage */
  48 static void sn95031_enable_mic_bias(struct snd_soc_codec *codec)
  49 {
  50         snd_soc_write(codec, SN95031_VAUD, BIT(2)|BIT(1)|BIT(0));
  51         snd_soc_update_bits(codec, SN95031_MICBIAS, BIT(2), BIT(2));
  52 }
  53
  54 /* Enable/Disable the ADC depending on the argument */
  55 static void configure_adc(struct snd_soc_codec *sn95031_codec, int val)
  56 {
  57         int value = snd_soc_read(sn95031_codec, SN95031_ADC1CNTL1);
  58
  59         if (val) {
  60                 /* Enable and start the ADC */
  61                 value |= (SN95031_ADC_ENBL | SN95031_ADC_START);
  62                 value &= (~SN95031_ADC_NO_LOOP);
  63         } else {
  64                 /* Just stop the ADC */
  65                 value &= (~SN95031_ADC_START);
  66         }
  67         snd_soc_write(sn95031_codec, SN95031_ADC1CNTL1, value);
  68 }
  69
  70 /*
  71  * finds an empty channel for conversion
  72  * If the ADC is not enabled then start using 0th channel
  73  * itself. Otherwise find an empty channel by looking for a
  74  * channel in which the stopbit is set to 1. returns the index
  75  * of the first free channel if succeeds or an error code.
  76  *
  77  * Context: can sleep
  78  *
  79  */
  80 static int find_free_channel(struct snd_soc_codec *sn95031_codec)
  81 {
  82         int i, value;
  83
  84         /* check whether ADC is enabled */
  85         value = snd_soc_read(sn95031_codec, SN95031_ADC1CNTL1);
  86
  87         if ((value & SN95031_ADC_ENBL) == 0)
  88                 return 0;
  89
  90         /* ADC is already enabled; Looking for an empty channel */
  91         for (i = 0; i < SN95031_ADC_CHANLS_MAX; i++) {
  92                 value = snd_soc_read(sn95031_codec,
  93                                 SN95031_ADC_CHNL_START_ADDR + i);
  94                 if (value & SN95031_STOPBIT_MASK)
  95                         break;
  96         }
  97         return (i == SN95031_ADC_CHANLS_MAX) ? (-EINVAL) : i;
  98 }
  99
 100 /* Initialize the ADC for reading micbias values. Can sleep. */
 101 static int sn95031_initialize_adc(struct snd_soc_codec *sn95031_codec)
 102 {
 103         int base_addr, chnl_addr;
 104         int value;
 105         int channel_index;
 106
 107         /* Index of the first channel in which the stop bit is set */
 108         channel_index = find_free_channel(sn95031_codec);
 109         if (channel_index < 0) {
 110                 pr_err("No free ADC channels");
 111                 return channel_index;
 112         }
 113
 114         base_addr = SN95031_ADC_CHNL_START_ADDR + channel_index;
 115
 116         if (!(channel_index == 0 || channel_index ==  SN95031_ADC_LOOP_MAX)) {
 117                 /* Reset stop bit for channels other than 0 and 12 */
 118                 value = snd_soc_read(sn95031_codec, base_addr);
 119                 /* Set the stop bit to zero */
 120                 snd_soc_write(sn95031_codec, base_addr, value & 0xEF);
 121                 /* Index of the first free channel */
 122                 base_addr++;
 123                 channel_index++;
 124         }
 125
 126         /* Since this is the last channel, set the stop bit
 127            to 1 by ORing the DIE_SENSOR_CODE with 0x10 */
 128         snd_soc_write(sn95031_codec, base_addr,
 129                                 SN95031_AUDIO_DETECT_CODE | 0x10);
 130
 131         chnl_addr = SN95031_ADC_DATA_START_ADDR + 2 * channel_index;
 132         pr_debug("mid_initialize : %x", chnl_addr);
 133         configure_adc(sn95031_codec, 1);
 134         return chnl_addr;
 135 }
 136
 137
 138 /* reads the ADC registers and gets the mic bias value in mV. */
 139 static unsigned int sn95031_get_mic_bias(struct snd_soc_codec *codec)
 140 {
 141         u16 adc_adr = sn95031_initialize_adc(codec);
 142         u16 adc_val1, adc_val2;
 143         unsigned int mic_bias;
 144
 145         sn95031_enable_mic_bias(codec);
 146
 147         /* Enable the sound card for conversion before reading */
 148         snd_soc_write(codec, SN95031_ADC1CNTL3, 0x05);
 149         /* Re-toggle the RRDATARD bit */
 150         snd_soc_write(codec, SN95031_ADC1CNTL3, 0x04);
 151
 152         /* Read the higher bits of data */
 153         msleep(1000);
 154         adc_val1 = snd_soc_read(codec, adc_adr);
 155         adc_adr++;
 156         adc_val2 = snd_soc_read(codec, adc_adr);
 157
 158         /* Adding lower two bits to the higher bits */
 159         mic_bias = (adc_val1 << 2) + (adc_val2 & 3);
 160         mic_bias = (mic_bias * SN95031_ADC_ONE_LSB_MULTIPLIER) / 1000;
 161         pr_debug("mic bias = %dmV\n", mic_bias);
 162         return mic_bias;
 163 }
 164 /*end - adc helper functions */
 165
 166 static inline unsigned int sn95031_read(struct snd_soc_codec *codec,
 167                         unsigned int reg)
 168 {
 169         u8 value = 0;
 170         int ret;
 171
 172         ret = intel_scu_ipc_ioread8(reg, &value);
 173         if (ret)
 174                 pr_err("read of %x failed, err %d\n", reg, ret);
 175         return value;
 176
 177 }
 178
 179 static inline int sn95031_write(struct snd_soc_codec *codec,
 180                         unsigned int reg, unsigned int value)
 181 {
 182         int ret;
 183
 184         ret = intel_scu_ipc_iowrite8(reg, value);
 185         if (ret)
 186                 pr_err("write of %x failed, err %d\n", reg, ret);
 187         return ret;
 188 }
 189
 190 static int sn95031_set_vaud_bias(struct snd_soc_codec *codec,
 191                 enum snd_soc_bias_level level)
 192 {
 193         switch (level) {
 194         case SND_SOC_BIAS_ON:
 195                 break;
 196
 197         case SND_SOC_BIAS_PREPARE:
 198                 if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) {
 199                         pr_debug("vaud_bias powering up pll\n");
 200                         /* power up the pll */
 201                         snd_soc_write(codec, SN95031_AUDPLLCTRL, BIT(5));
 202                         /* enable pcm 2 */
 203                         snd_soc_update_bits(codec, SN95031_PCM2C2,
 204                                         BIT(0), BIT(0));
 205                 }
 206                 break;
 207
 208         case SND_SOC_BIAS_STANDBY:
 209                 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
 210                         pr_debug("vaud_bias power up rail\n");
 211                         /* power up the rail */
 212                         snd_soc_write(codec, SN95031_VAUD,
 213                                         BIT(2)|BIT(1)|BIT(0));
 214                         msleep(1);
 215                 } else if (codec->dapm.bias_level == SND_SOC_BIAS_PREPARE) {
 216                         /* turn off pcm */
 217                         pr_debug("vaud_bias power dn pcm\n");
 218                         snd_soc_update_bits(codec, SN95031_PCM2C2, BIT(0), 0);
 219                         snd_soc_write(codec, SN95031_AUDPLLCTRL, 0);
 220                 }
 221                 break;
 222
 223
 224         case SND_SOC_BIAS_OFF:
 225                 pr_debug("vaud_bias _OFF doing rail shutdown\n");
 226                 snd_soc_write(codec, SN95031_VAUD, BIT(3));
 227                 break;
 228         }
 229
 230         codec->dapm.bias_level = level;
 231         return 0;
 232 }
 233
 234 static int sn95031_vhs_event(struct snd_soc_dapm_widget *w,
 235                     struct snd_kcontrol *kcontrol, int event)
 236 {
 237         if (SND_SOC_DAPM_EVENT_ON(event)) {
 238                 pr_debug("VHS SND_SOC_DAPM_EVENT_ON doing rail startup now\n");
 239                 /* power up the rail */
 240                 snd_soc_write(w->codec, SN95031_VHSP, 0x3D);
 241                 snd_soc_write(w->codec, SN95031_VHSN, 0x3F);
 242                 msleep(1);
 243         } else if (SND_SOC_DAPM_EVENT_OFF(event)) {
 244                 pr_debug("VHS SND_SOC_DAPM_EVENT_OFF doing rail shutdown\n");
 245                 snd_soc_write(w->codec, SN95031_VHSP, 0xC4);
 246                 snd_soc_write(w->codec, SN95031_VHSN, 0x04);
 247         }
 248         return 0;
 249 }
 250
 251 static int sn95031_vihf_event(struct snd_soc_dapm_widget *w,
 252                     struct snd_kcontrol *kcontrol, int event)
 253 {
 254         if (SND_SOC_DAPM_EVENT_ON(event)) {
 255                 pr_debug("VIHF SND_SOC_DAPM_EVENT_ON doing rail startup now\n");
 256                 /* power up the rail */
 257                 snd_soc_write(w->codec, SN95031_VIHF, 0x27);
 258                 msleep(1);
 259         } else if (SND_SOC_DAPM_EVENT_OFF(event)) {
 260                 pr_debug("VIHF SND_SOC_DAPM_EVENT_OFF doing rail shutdown\n");
 261                 snd_soc_write(w->codec, SN95031_VIHF, 0x24);
 262         }
 263         return 0;
 264 }
 265
 266 static int sn95031_dmic12_event(struct snd_soc_dapm_widget *w,
 267                         struct snd_kcontrol *k, int event)
 268 {
 269         unsigned int ldo = 0, clk_dir = 0, data_dir = 0;
 270
 271         if (SND_SOC_DAPM_EVENT_ON(event)) {
 272                 ldo = BIT(5)|BIT(4);
 273                 clk_dir = BIT(0);
 274                 data_dir = BIT(7);
 275         }
 276         /* program DMIC LDO, clock and set clock */
 277         snd_soc_update_bits(w->codec, SN95031_MICBIAS, BIT(5)|BIT(4), ldo);
 278         snd_soc_update_bits(w->codec, SN95031_DMICBUF0123, BIT(0), clk_dir);
 279         snd_soc_update_bits(w->codec, SN95031_DMICBUF0123, BIT(7), data_dir);
 280         return 0;
 281 }
 282
 283 static int sn95031_dmic34_event(struct snd_soc_dapm_widget *w,
 284                         struct snd_kcontrol *k, int event)
 285 {
 286         unsigned int ldo = 0, clk_dir = 0, data_dir = 0;
 287
 288         if (SND_SOC_DAPM_EVENT_ON(event)) {
 289                 ldo = BIT(5)|BIT(4);
 290                 clk_dir = BIT(2);
 291                 data_dir = BIT(1);
 292         }
 293         /* program DMIC LDO, clock and set clock */
 294         snd_soc_update_bits(w->codec, SN95031_MICBIAS, BIT(5)|BIT(4), ldo);
 295         snd_soc_update_bits(w->codec, SN95031_DMICBUF0123, BIT(2), clk_dir);
 296         snd_soc_update_bits(w->codec, SN95031_DMICBUF45, BIT(1), data_dir);
 297         return 0;
 298 }
 299
 300 static int sn95031_dmic56_event(struct snd_soc_dapm_widget *w,
 301                         struct snd_kcontrol *k, int event)
 302 {
 303         unsigned int ldo = 0;
 304
 305         if (SND_SOC_DAPM_EVENT_ON(event))
 306                 ldo = BIT(7)|BIT(6);
 307
 308         /* program DMIC LDO */
 309         snd_soc_update_bits(w->codec, SN95031_MICBIAS, BIT(7)|BIT(6), ldo);
 310         return 0;
 311 }
 312
 313 /* mux controls */
 314 static const char *sn95031_mic_texts[] = { "AMIC", "LineIn" };
 315
 316 static const struct soc_enum sn95031_micl_enum =
 317         SOC_ENUM_SINGLE(SN95031_ADCCONFIG, 1, 2, sn95031_mic_texts);
 318
 319 static const struct snd_kcontrol_new sn95031_micl_mux_control =
 320         SOC_DAPM_ENUM("Route", sn95031_micl_enum);
 321
 322 static const struct soc_enum sn95031_micr_enum =
 323         SOC_ENUM_SINGLE(SN95031_ADCCONFIG, 3, 2, sn95031_mic_texts);
 324
 325 static const struct snd_kcontrol_new sn95031_micr_mux_control =
 326         SOC_DAPM_ENUM("Route", sn95031_micr_enum);
 327
 328 static const char *sn95031_input_texts[] = {    "DMIC1", "DMIC2", "DMIC3",
 329                                                 "DMIC4", "DMIC5", "DMIC6",
 330                                                 "ADC Left", "ADC Right" };
 331
 332 static const struct soc_enum sn95031_input1_enum =
 333         SOC_ENUM_SINGLE(SN95031_AUDIOMUX12, 0, 8, sn95031_input_texts);
 334
 335 static const struct snd_kcontrol_new sn95031_input1_mux_control =
 336         SOC_DAPM_ENUM("Route", sn95031_input1_enum);
 337
 338 static const struct soc_enum sn95031_input2_enum =
 339         SOC_ENUM_SINGLE(SN95031_AUDIOMUX12, 4, 8, sn95031_input_texts);
 340
 341 static const struct snd_kcontrol_new sn95031_input2_mux_control =
 342         SOC_DAPM_ENUM("Route", sn95031_input2_enum);
 343
 344 static const struct soc_enum sn95031_input3_enum =
 345         SOC_ENUM_SINGLE(SN95031_AUDIOMUX34, 0, 8, sn95031_input_texts);
 346
 347 static const struct snd_kcontrol_new sn95031_input3_mux_control =
 348         SOC_DAPM_ENUM("Route", sn95031_input3_enum);
 349
 350 static const struct soc_enum sn95031_input4_enum =
 351         SOC_ENUM_SINGLE(SN95031_AUDIOMUX34, 4, 8, sn95031_input_texts);
 352
 353 static const struct snd_kcontrol_new sn95031_input4_mux_control =
 354         SOC_DAPM_ENUM("Route", sn95031_input4_enum);
 355
 356 /* capture path controls */
 357
 358 static const char *sn95031_micmode_text[] = {"Single Ended", "Differential"};
 359
 360 /* 0dB to 30dB in 10dB steps */
 361 static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 10, 0);
 362
 363 static const struct soc_enum sn95031_micmode1_enum =
 364         SOC_ENUM_SINGLE(SN95031_MICAMP1, 1, 2, sn95031_micmode_text);
 365 static const struct soc_enum sn95031_micmode2_enum =
 366         SOC_ENUM_SINGLE(SN95031_MICAMP2, 1, 2, sn95031_micmode_text);
 367
 368 static const char *sn95031_dmic_cfg_text[] = {"GPO", "DMIC"};
 369
 370 static const struct soc_enum sn95031_dmic12_cfg_enum =
 371         SOC_ENUM_SINGLE(SN95031_DMICMUX, 0, 2, sn95031_dmic_cfg_text);
 372 static const struct soc_enum sn95031_dmic34_cfg_enum =
 373         SOC_ENUM_SINGLE(SN95031_DMICMUX, 1, 2, sn95031_dmic_cfg_text);
 374 static const struct soc_enum sn95031_dmic56_cfg_enum =
 375         SOC_ENUM_SINGLE(SN95031_DMICMUX, 2, 2, sn95031_dmic_cfg_text);
 376
 377 static const struct snd_kcontrol_new sn95031_snd_controls[] = {
 378         SOC_ENUM("Mic1Mode Capture Route", sn95031_micmode1_enum),
 379         SOC_ENUM("Mic2Mode Capture Route", sn95031_micmode2_enum),
 380         SOC_ENUM("DMIC12 Capture Route", sn95031_dmic12_cfg_enum),
 381         SOC_ENUM("DMIC34 Capture Route", sn95031_dmic34_cfg_enum),
 382         SOC_ENUM("DMIC56 Capture Route", sn95031_dmic56_cfg_enum),
 383         SOC_SINGLE_TLV("Mic1 Capture Volume", SN95031_MICAMP1,
 384                         2, 4, 0, mic_tlv),
 385         SOC_SINGLE_TLV("Mic2 Capture Volume", SN95031_MICAMP2,
 386                         2, 4, 0, mic_tlv),
 387 };
 388
 389 /* DAPM widgets */
 390 static const struct snd_soc_dapm_widget sn95031_dapm_widgets[] = {
 391
 392         /* all end points mic, hs etc */
 393         SND_SOC_DAPM_OUTPUT("HPOUTL"),
 394         SND_SOC_DAPM_OUTPUT("HPOUTR"),
 395         SND_SOC_DAPM_OUTPUT("EPOUT"),
 396         SND_SOC_DAPM_OUTPUT("IHFOUTL"),
 397         SND_SOC_DAPM_OUTPUT("IHFOUTR"),
 398         SND_SOC_DAPM_OUTPUT("LINEOUTL"),
 399         SND_SOC_DAPM_OUTPUT("LINEOUTR"),
 400         SND_SOC_DAPM_OUTPUT("VIB1OUT"),
 401         SND_SOC_DAPM_OUTPUT("VIB2OUT"),
 402
 403         SND_SOC_DAPM_INPUT("AMIC1"), /* headset mic */
 404         SND_SOC_DAPM_INPUT("AMIC2"),
 405         SND_SOC_DAPM_INPUT("DMIC1"),
 406         SND_SOC_DAPM_INPUT("DMIC2"),
 407         SND_SOC_DAPM_INPUT("DMIC3"),
 408         SND_SOC_DAPM_INPUT("DMIC4"),
 409         SND_SOC_DAPM_INPUT("DMIC5"),
 410         SND_SOC_DAPM_INPUT("DMIC6"),
 411         SND_SOC_DAPM_INPUT("LINEINL"),
 412         SND_SOC_DAPM_INPUT("LINEINR"),
 413
 414         SND_SOC_DAPM_MICBIAS("AMIC1Bias", SN95031_MICBIAS, 2, 0),
 415         SND_SOC_DAPM_MICBIAS("AMIC2Bias", SN95031_MICBIAS, 3, 0),
 416         SND_SOC_DAPM_MICBIAS("DMIC12Bias", SN95031_DMICMUX, 3, 0),
 417         SND_SOC_DAPM_MICBIAS("DMIC34Bias", SN95031_DMICMUX, 4, 0),
 418         SND_SOC_DAPM_MICBIAS("DMIC56Bias", SN95031_DMICMUX, 5, 0),
 419
 420         SND_SOC_DAPM_SUPPLY("DMIC12supply", SN95031_DMICLK, 0, 0,
 421                                 sn95031_dmic12_event,
 422                                 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 423         SND_SOC_DAPM_SUPPLY("DMIC34supply", SN95031_DMICLK, 1, 0,
 424                                 sn95031_dmic34_event,
 425                                 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 426         SND_SOC_DAPM_SUPPLY("DMIC56supply", SN95031_DMICLK, 2, 0,
 427                                 sn95031_dmic56_event,
 428                                 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 429
 430         SND_SOC_DAPM_AIF_OUT("PCM_Out", "Capture", 0,
 431                         SND_SOC_NOPM, 0, 0),
 432
 433         SND_SOC_DAPM_SUPPLY("Headset Rail", SND_SOC_NOPM, 0, 0,
 434                         sn95031_vhs_event,
 435                         SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 436         SND_SOC_DAPM_SUPPLY("Speaker Rail", SND_SOC_NOPM, 0, 0,
 437                         sn95031_vihf_event,
 438                         SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 439
 440         /* playback path driver enables */
 441         SND_SOC_DAPM_PGA("Headset Left Playback",
 442                         SN95031_DRIVEREN, 0, 0, NULL, 0),
 443         SND_SOC_DAPM_PGA("Headset Right Playback",
 444                         SN95031_DRIVEREN, 1, 0, NULL, 0),
 445         SND_SOC_DAPM_PGA("Speaker Left Playback",
 446                         SN95031_DRIVEREN, 2, 0, NULL, 0),
 447         SND_SOC_DAPM_PGA("Speaker Right Playback",
 448                         SN95031_DRIVEREN, 3, 0, NULL, 0),
 449         SND_SOC_DAPM_PGA("Vibra1 Playback",
 450                         SN95031_DRIVEREN, 4, 0, NULL, 0),
 451         SND_SOC_DAPM_PGA("Vibra2 Playback",
 452                         SN95031_DRIVEREN, 5, 0, NULL, 0),
 453         SND_SOC_DAPM_PGA("Earpiece Playback",
 454                         SN95031_DRIVEREN, 6, 0, NULL, 0),
 455         SND_SOC_DAPM_PGA("Lineout Left Playback",
 456                         SN95031_LOCTL, 0, 0, NULL, 0),
 457         SND_SOC_DAPM_PGA("Lineout Right Playback",
 458                         SN95031_LOCTL, 4, 0, NULL, 0),
 459
 460         /* playback path filter enable */
 461         SND_SOC_DAPM_PGA("Headset Left Filter",
 462                         SN95031_HSEPRXCTRL, 4, 0, NULL, 0),
 463         SND_SOC_DAPM_PGA("Headset Right Filter",
 464                         SN95031_HSEPRXCTRL, 5, 0,  NULL, 0),
 465         SND_SOC_DAPM_PGA("Speaker Left Filter",
 466                         SN95031_IHFRXCTRL, 0, 0,  NULL, 0),
 467         SND_SOC_DAPM_PGA("Speaker Right Filter",
 468                         SN95031_IHFRXCTRL, 1, 0,  NULL, 0),
 469
 470         /* DACs */
 471         SND_SOC_DAPM_DAC("HSDAC Left", "Headset",
 472                         SN95031_DACCONFIG, 0, 0),
 473         SND_SOC_DAPM_DAC("HSDAC Right", "Headset",
 474                         SN95031_DACCONFIG, 1, 0),
 475         SND_SOC_DAPM_DAC("IHFDAC Left", "Speaker",
 476                         SN95031_DACCONFIG, 2, 0),
 477         SND_SOC_DAPM_DAC("IHFDAC Right", "Speaker",
 478                         SN95031_DACCONFIG, 3, 0),
 479         SND_SOC_DAPM_DAC("Vibra1 DAC", "Vibra1",
 480                         SN95031_VIB1C5, 1, 0),
 481         SND_SOC_DAPM_DAC("Vibra2 DAC", "Vibra2",
 482                         SN95031_VIB2C5, 1, 0),
 483
 484         /* capture widgets */
 485         SND_SOC_DAPM_PGA("LineIn Enable Left", SN95031_MICAMP1,
 486                                 7, 0, NULL, 0),
 487         SND_SOC_DAPM_PGA("LineIn Enable Right", SN95031_MICAMP2,
 488                                 7, 0, NULL, 0),
 489
 490         SND_SOC_DAPM_PGA("MIC1 Enable", SN95031_MICAMP1, 0, 0, NULL, 0),
 491         SND_SOC_DAPM_PGA("MIC2 Enable", SN95031_MICAMP2, 0, 0, NULL, 0),
 492         SND_SOC_DAPM_PGA("TX1 Enable", SN95031_AUDIOTXEN, 2, 0, NULL, 0),
 493         SND_SOC_DAPM_PGA("TX2 Enable", SN95031_AUDIOTXEN, 3, 0, NULL, 0),
 494         SND_SOC_DAPM_PGA("TX3 Enable", SN95031_AUDIOTXEN, 4, 0, NULL, 0),
 495         SND_SOC_DAPM_PGA("TX4 Enable", SN95031_AUDIOTXEN, 5, 0, NULL, 0),
 496
 497         /* ADC have null stream as they will be turned ON by TX path */
 498         SND_SOC_DAPM_ADC("ADC Left", NULL,
 499                         SN95031_ADCCONFIG, 0, 0),
 500         SND_SOC_DAPM_ADC("ADC Right", NULL,
 501                         SN95031_ADCCONFIG, 2, 0),
 502
 503         SND_SOC_DAPM_MUX("Mic_InputL Capture Route",
 504                         SND_SOC_NOPM, 0, 0, &sn95031_micl_mux_control),
 505         SND_SOC_DAPM_MUX("Mic_InputR Capture Route",
 506                         SND_SOC_NOPM, 0, 0, &sn95031_micr_mux_control),
 507
 508         SND_SOC_DAPM_MUX("Txpath1 Capture Route",
 509                         SND_SOC_NOPM, 0, 0, &sn95031_input1_mux_control),
 510         SND_SOC_DAPM_MUX("Txpath2 Capture Route",
 511                         SND_SOC_NOPM, 0, 0, &sn95031_input2_mux_control),
 512         SND_SOC_DAPM_MUX("Txpath3 Capture Route",
 513                         SND_SOC_NOPM, 0, 0, &sn95031_input3_mux_control),
 514         SND_SOC_DAPM_MUX("Txpath4 Capture Route",
 515                         SND_SOC_NOPM, 0, 0, &sn95031_input4_mux_control),
 516
 517 };
 518
 519 static const struct snd_soc_dapm_route sn95031_audio_map[] = {
 520         /* headset and earpiece map */
 521         { "HPOUTL", NULL, "Headset Rail"},
 522         { "HPOUTR", NULL, "Headset Rail"},
 523         { "HPOUTL", NULL, "Headset Left Playback" },
 524         { "HPOUTR", NULL, "Headset Right Playback" },
 525         { "EPOUT", NULL, "Earpiece Playback" },
 526         { "Headset Left Playback", NULL, "Headset Left Filter"},
 527         { "Headset Right Playback", NULL, "Headset Right Filter"},
 528         { "Earpiece Playback", NULL, "Headset Left Filter"},
 529         { "Headset Left Filter", NULL, "HSDAC Left"},
 530         { "Headset Right Filter", NULL, "HSDAC Right"},
 531
 532         /* speaker map */
 533         { "IHFOUTL", NULL, "Speaker Rail"},
 534         { "IHFOUTR", NULL, "Speaker Rail"},
 535         { "IHFOUTL", "NULL", "Speaker Left Playback"},
 536         { "IHFOUTR", "NULL", "Speaker Right Playback"},
 537         { "Speaker Left Playback", NULL, "Speaker Left Filter"},
 538         { "Speaker Right Playback", NULL, "Speaker Right Filter"},
 539         { "Speaker Left Filter", NULL, "IHFDAC Left"},
 540         { "Speaker Right Filter", NULL, "IHFDAC Right"},
 541
 542         /* vibra map */
 543         { "VIB1OUT", NULL, "Vibra1 Playback"},
 544         { "Vibra1 Playback", NULL, "Vibra1 DAC"},
 545
 546         { "VIB2OUT", NULL, "Vibra2 Playback"},
 547         { "Vibra2 Playback", NULL, "Vibra2 DAC"},
 548
 549         /* lineout */
 550         { "LINEOUTL", NULL, "Lineout Left Playback"},
 551         { "LINEOUTR", NULL, "Lineout Right Playback"},
 552         { "Lineout Left Playback", NULL, "Headset Left Filter"},
 553         { "Lineout Left Playback", NULL, "Speaker Left Filter"},
 554         { "Lineout Left Playback", NULL, "Vibra1 DAC"},
 555         { "Lineout Right Playback", NULL, "Headset Right Filter"},
 556         { "Lineout Right Playback", NULL, "Speaker Right Filter"},
 557         { "Lineout Right Playback", NULL, "Vibra2 DAC"},
 558
 559         /* Headset (AMIC1) mic */
 560         { "AMIC1Bias", NULL, "AMIC1"},
 561         { "MIC1 Enable", NULL, "AMIC1Bias"},
 562         { "Mic_InputL Capture Route", "AMIC", "MIC1 Enable"},
 563
 564         /* AMIC2 */
 565         { "AMIC2Bias", NULL, "AMIC2"},
 566         { "MIC2 Enable", NULL, "AMIC2Bias"},
 567         { "Mic_InputR Capture Route", "AMIC", "MIC2 Enable"},
 568
 569
 570         /* Linein */
 571         { "LineIn Enable Left", NULL, "LINEINL"},
 572         { "LineIn Enable Right", NULL, "LINEINR"},
 573         { "Mic_InputL Capture Route", "LineIn", "LineIn Enable Left"},
 574         { "Mic_InputR Capture Route", "LineIn", "LineIn Enable Right"},
 575
 576         /* ADC connection */
 577         { "ADC Left", NULL, "Mic_InputL Capture Route"},
 578         { "ADC Right", NULL, "Mic_InputR Capture Route"},
 579
 580         /*DMIC connections */
 581         { "DMIC1", NULL, "DMIC12supply"},
 582         { "DMIC2", NULL, "DMIC12supply"},
 583         { "DMIC3", NULL, "DMIC34supply"},
 584         { "DMIC4", NULL, "DMIC34supply"},
 585         { "DMIC5", NULL, "DMIC56supply"},
 586         { "DMIC6", NULL, "DMIC56supply"},
 587
 588         { "DMIC12Bias", NULL, "DMIC1"},
 589         { "DMIC12Bias", NULL, "DMIC2"},
 590         { "DMIC34Bias", NULL, "DMIC3"},
 591         { "DMIC34Bias", NULL, "DMIC4"},
 592         { "DMIC56Bias", NULL, "DMIC5"},
 593         { "DMIC56Bias", NULL, "DMIC6"},
 594
 595         /*TX path inputs*/
 596         { "Txpath1 Capture Route", "ADC Left", "ADC Left"},
 597         { "Txpath2 Capture Route", "ADC Left", "ADC Left"},
 598         { "Txpath3 Capture Route", "ADC Left", "ADC Left"},
 599         { "Txpath4 Capture Route", "ADC Left", "ADC Left"},
 600         { "Txpath1 Capture Route", "ADC Right", "ADC Right"},
 601         { "Txpath2 Capture Route", "ADC Right", "ADC Right"},
 602         { "Txpath3 Capture Route", "ADC Right", "ADC Right"},
 603         { "Txpath4 Capture Route", "ADC Right", "ADC Right"},
 604         { "Txpath1 Capture Route", "DMIC1", "DMIC1"},
 605         { "Txpath2 Capture Route", "DMIC1", "DMIC1"},
 606         { "Txpath3 Capture Route", "DMIC1", "DMIC1"},
 607         { "Txpath4 Capture Route", "DMIC1", "DMIC1"},
 608         { "Txpath1 Capture Route", "DMIC2", "DMIC2"},
 609         { "Txpath2 Capture Route", "DMIC2", "DMIC2"},
 610         { "Txpath3 Capture Route", "DMIC2", "DMIC2"},
 611         { "Txpath4 Capture Route", "DMIC2", "DMIC2"},
 612         { "Txpath1 Capture Route", "DMIC3", "DMIC3"},
 613         { "Txpath2 Capture Route", "DMIC3", "DMIC3"},
 614         { "Txpath3 Capture Route", "DMIC3", "DMIC3"},
 615         { "Txpath4 Capture Route", "DMIC3", "DMIC3"},
 616         { "Txpath1 Capture Route", "DMIC4", "DMIC4"},
 617         { "Txpath2 Capture Route", "DMIC4", "DMIC4"},
 618         { "Txpath3 Capture Route", "DMIC4", "DMIC4"},
 619         { "Txpath4 Capture Route", "DMIC4", "DMIC4"},
 620         { "Txpath1 Capture Route", "DMIC5", "DMIC5"},
 621         { "Txpath2 Capture Route", "DMIC5", "DMIC5"},
 622         { "Txpath3 Capture Route", "DMIC5", "DMIC5"},
 623         { "Txpath4 Capture Route", "DMIC5", "DMIC5"},
 624         { "Txpath1 Capture Route", "DMIC6", "DMIC6"},
 625         { "Txpath2 Capture Route", "DMIC6", "DMIC6"},
 626         { "Txpath3 Capture Route", "DMIC6", "DMIC6"},
 627         { "Txpath4 Capture Route", "DMIC6", "DMIC6"},
 628
 629         /* tx path */
 630         { "TX1 Enable", NULL, "Txpath1 Capture Route"},
 631         { "TX2 Enable", NULL, "Txpath2 Capture Route"},
 632         { "TX3 Enable", NULL, "Txpath3 Capture Route"},
 633         { "TX4 Enable", NULL, "Txpath4 Capture Route"},
 634         { "PCM_Out", NULL, "TX1 Enable"},
 635         { "PCM_Out", NULL, "TX2 Enable"},
 636         { "PCM_Out", NULL, "TX3 Enable"},
 637         { "PCM_Out", NULL, "TX4 Enable"},
 638
 639 };
 640
 641 /* speaker and headset mutes, for audio pops and clicks */
 642 static int sn95031_pcm_hs_mute(struct snd_soc_dai *dai, int mute)
 643 {
 644         snd_soc_update_bits(dai->codec,
 645                         SN95031_HSLVOLCTRL, BIT(7), (!mute << 7));
 646         snd_soc_update_bits(dai->codec,
 647                         SN95031_HSRVOLCTRL, BIT(7), (!mute << 7));
 648         return 0;
 649 }
 650
 651 static int sn95031_pcm_spkr_mute(struct snd_soc_dai *dai, int mute)
 652 {
 653         snd_soc_update_bits(dai->codec,
 654                         SN95031_IHFLVOLCTRL, BIT(7), (!mute << 7));
 655         snd_soc_update_bits(dai->codec,
 656                         SN95031_IHFRVOLCTRL, BIT(7), (!mute << 7));
 657         return 0;
 658 }
 659
 660 static int sn95031_pcm_hw_params(struct snd_pcm_substream *substream,
 661                 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
 662 {
 663         unsigned int format, rate;
 664
 665         switch (params_format(params)) {
 666         case SNDRV_PCM_FORMAT_S16_LE:
 667                 format = BIT(4)|BIT(5);
 668                 break;
 669
 670         case SNDRV_PCM_FORMAT_S24_LE:
 671                 format = 0;
 672                 break;
 673         default:
 674                 return -EINVAL;
 675         }
 676         snd_soc_update_bits(dai->codec, SN95031_PCM2C2,
 677                         BIT(4)|BIT(5), format);
 678
 679         switch (params_rate(params)) {
 680         case 48000:
 681                 pr_debug("RATE_48000\n");
 682                 rate = 0;
 683                 break;
 684
 685         case 44100:
 686                 pr_debug("RATE_44100\n");
 687                 rate = BIT(7);
 688                 break;
 689
 690         default:
 691                 pr_err("ERR rate %d\n", params_rate(params));
 692                 return -EINVAL;
 693         }
 694         snd_soc_update_bits(dai->codec, SN95031_PCM1C1, BIT(7), rate);
 695
 696         return 0;
 697 }
 698
 699 /* Codec DAI section */
 700 static struct snd_soc_dai_ops sn95031_headset_dai_ops = {
 701         .digital_mute   = sn95031_pcm_hs_mute,
 702         .hw_params      = sn95031_pcm_hw_params,
 703 };
 704
 705 static struct snd_soc_dai_ops sn95031_speaker_dai_ops = {
 706         .digital_mute   = sn95031_pcm_spkr_mute,
 707         .hw_params      = sn95031_pcm_hw_params,
 708 };
 709
 710 static struct snd_soc_dai_ops sn95031_vib1_dai_ops = {
 711         .hw_params      = sn95031_pcm_hw_params,
 712 };
 713
 714 static struct snd_soc_dai_ops sn95031_vib2_dai_ops = {
 715         .hw_params      = sn95031_pcm_hw_params,
 716 };
 717
 718 static struct snd_soc_dai_driver sn95031_dais[] = {
 719 {
 720         .name = "SN95031 Headset",
 721         .playback = {
 722                 .stream_name = "Headset",
 723                 .channels_min = 2,
 724                 .channels_max = 2,
 725                 .rates = SN95031_RATES,
 726                 .formats = SN95031_FORMATS,
 727         },
 728         .capture = {
 729                 .stream_name = "Capture",
 730                 .channels_min = 1,
 731                 .channels_max = 5,
 732                 .rates = SN95031_RATES,
 733                 .formats = SN95031_FORMATS,
 734         },
 735         .ops = &sn95031_headset_dai_ops,
 736 },
 737 {       .name = "SN95031 Speaker",
 738         .playback = {
 739                 .stream_name = "Speaker",
 740                 .channels_min = 2,
 741                 .channels_max = 2,
 742                 .rates = SN95031_RATES,
 743                 .formats = SN95031_FORMATS,
 744         },
 745         .ops = &sn95031_speaker_dai_ops,
 746 },
 747 {       .name = "SN95031 Vibra1",
 748         .playback = {
 749                 .stream_name = "Vibra1",
 750                 .channels_min = 1,
 751                 .channels_max = 1,
 752                 .rates = SN95031_RATES,
 753                 .formats = SN95031_FORMATS,
 754         },
 755         .ops = &sn95031_vib1_dai_ops,
 756 },
 757 {       .name = "SN95031 Vibra2",
 758         .playback = {
 759                 .stream_name = "Vibra2",
 760                 .channels_min = 1,
 761                 .channels_max = 1,
 762                 .rates = SN95031_RATES,
 763                 .formats = SN95031_FORMATS,
 764         },
 765         .ops = &sn95031_vib2_dai_ops,
 766 },
 767 };
 768
 769 static inline void sn95031_disable_jack_btn(struct snd_soc_codec *codec)
 770 {
 771         snd_soc_write(codec, SN95031_BTNCTRL2, 0x00);
 772 }
 773
 774 static inline void sn95031_enable_jack_btn(struct snd_soc_codec *codec)
 775 {
 776         snd_soc_write(codec, SN95031_BTNCTRL1, 0x77);
 777         snd_soc_write(codec, SN95031_BTNCTRL2, 0x01);
 778 }
 779
 780 static int sn95031_get_headset_state(struct snd_soc_jack *mfld_jack)
 781 {
 782         int micbias = sn95031_get_mic_bias(mfld_jack->codec);
 783
 784         int jack_type = snd_soc_jack_get_type(mfld_jack, micbias);
 785
 786         pr_debug("jack type detected = %d\n", jack_type);
 787         if (jack_type == SND_JACK_HEADSET)
 788                 sn95031_enable_jack_btn(mfld_jack->codec);
 789         return jack_type;
 790 }
 791
 792 void sn95031_jack_detection(struct mfld_jack_data *jack_data)
 793 {
 794         unsigned int status;
 795         unsigned int mask = SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_HEADSET;
 796
 797         pr_debug("interrupt id read in sram = 0x%x\n", jack_data->intr_id);
 798         if (jack_data->intr_id & 0x1) {
 799                 pr_debug("short_push detected\n");
 800                 status = SND_JACK_HEADSET | SND_JACK_BTN_0;
 801         } else if (jack_data->intr_id & 0x2) {
 802                 pr_debug("long_push detected\n");
 803                 status = SND_JACK_HEADSET | SND_JACK_BTN_1;
 804         } else if (jack_data->intr_id & 0x4) {
 805                 pr_debug("headset or headphones inserted\n");
 806                 status = sn95031_get_headset_state(jack_data->mfld_jack);
 807         } else if (jack_data->intr_id & 0x8) {
 808                 pr_debug("headset or headphones removed\n");
 809                 status = 0;
 810                 sn95031_disable_jack_btn(jack_data->mfld_jack->codec);
 811         } else {
 812                 pr_err("unidentified interrupt\n");
 813                 return;
 814         }
 815
 816         snd_soc_jack_report(jack_data->mfld_jack, status, mask);
 817         /*button pressed and released so we send explicit button release */
 818         if ((status & SND_JACK_BTN_0) | (status & SND_JACK_BTN_1))
 819                 snd_soc_jack_report(jack_data->mfld_jack,
 820                                 SND_JACK_HEADSET, mask);
 821 }
 822 EXPORT_SYMBOL_GPL(sn95031_jack_detection);
 823
 824 /* codec registration */
 825 static int sn95031_codec_probe(struct snd_soc_codec *codec)
 826 {
 827         pr_debug("codec_probe called\n");
 828
 829         codec->dapm.idle_bias_off = 1;
 830
 831         /* PCM interface config
 832          * This sets the pcm rx slot conguration to max 6 slots
 833          * for max 4 dais (2 stereo and 2 mono)
 834          */
 835         snd_soc_write(codec, SN95031_PCM2RXSLOT01, 0x10);
 836         snd_soc_write(codec, SN95031_PCM2RXSLOT23, 0x32);
 837         snd_soc_write(codec, SN95031_PCM2RXSLOT45, 0x54);
 838         snd_soc_write(codec, SN95031_PCM2TXSLOT01, 0x10);
 839         snd_soc_write(codec, SN95031_PCM2TXSLOT23, 0x32);
 840         /* pcm port setting
 841          * This sets the pcm port to slave and clock at 19.2Mhz which
 842          * can support 6slots, sampling rate set per stream in hw-params
 843          */
 844         snd_soc_write(codec, SN95031_PCM1C1, 0x00);
 845         snd_soc_write(codec, SN95031_PCM2C1, 0x01);
 846         snd_soc_write(codec, SN95031_PCM2C2, 0x0A);
 847         snd_soc_write(codec, SN95031_HSMIXER, BIT(0)|BIT(4));
 848         /* vendor vibra workround, the vibras are muted by
 849          * custom register so unmute them
 850          */
 851         snd_soc_write(codec, SN95031_SSR5, 0x80);
 852         snd_soc_write(codec, SN95031_SSR6, 0x80);
 853         snd_soc_write(codec, SN95031_VIB1C5, 0x00);
 854         snd_soc_write(codec, SN95031_VIB2C5, 0x00);
 855         /* configure vibras for pcm port */
 856         snd_soc_write(codec, SN95031_VIB1C3, 0x00);
 857         snd_soc_write(codec, SN95031_VIB2C3, 0x00);
 858
 859         /* soft mute ramp time */
 860         snd_soc_write(codec, SN95031_SOFTMUTE, 0x3);
 861         /* fix the initial volume at 1dB,
 862          * default in +9dB,
 863          * 1dB give optimal swing on DAC, amps
 864          */
 865         snd_soc_write(codec, SN95031_HSLVOLCTRL, 0x08);
 866         snd_soc_write(codec, SN95031_HSRVOLCTRL, 0x08);
 867         snd_soc_write(codec, SN95031_IHFLVOLCTRL, 0x08);
 868         snd_soc_write(codec, SN95031_IHFRVOLCTRL, 0x08);
 869         /* dac mode and lineout workaround */
 870         snd_soc_write(codec, SN95031_SSR2, 0x10);
 871         snd_soc_write(codec, SN95031_SSR3, 0x40);
 872
 873         snd_soc_add_controls(codec, sn95031_snd_controls,
 874                              ARRAY_SIZE(sn95031_snd_controls));
 875
 876         return 0;
 877 }
 878
 879 static int sn95031_codec_remove(struct snd_soc_codec *codec)
 880 {
 881         pr_debug("codec_remove called\n");
 882         sn95031_set_vaud_bias(codec, SND_SOC_BIAS_OFF);
 883
 884         return 0;
 885 }
 886
 887 struct snd_soc_codec_driver sn95031_codec = {
 888         .probe          = sn95031_codec_probe,
 889         .remove         = sn95031_codec_remove,
 890         .read           = sn95031_read,
 891         .write          = sn95031_write,
 892         .set_bias_level = sn95031_set_vaud_bias,
 893         .dapm_widgets   = sn95031_dapm_widgets,
 894         .num_dapm_widgets       = ARRAY_SIZE(sn95031_dapm_widgets),
 895         .dapm_routes    = sn95031_audio_map,
 896         .num_dapm_routes        = ARRAY_SIZE(sn95031_audio_map),
 897 };
 898
 899 static int __devinit sn95031_device_probe(struct platform_device *pdev)
 900 {
 901         pr_debug("codec device probe called for %s\n", dev_name(&pdev->dev));
 902         return snd_soc_register_codec(&pdev->dev, &sn95031_codec,
 903                         sn95031_dais, ARRAY_SIZE(sn95031_dais));
 904 }
 905
 906 static int __devexit sn95031_device_remove(struct platform_device *pdev)
 907 {
 908         pr_debug("codec device remove called\n");
 909         snd_soc_unregister_codec(&pdev->dev);
 910         return 0;
 911 }
 912
 913 static struct platform_driver sn95031_codec_driver = {
 914         .driver         = {
 915                 .name           = "sn95031",
 916                 .owner          = THIS_MODULE,
 917         },
 918         .probe          = sn95031_device_probe,
 919         .remove         = __devexit_p(sn95031_device_remove),
 920 };
 921
 922 static int __init sn95031_init(void)
 923 {
 924         pr_debug("driver init called\n");
 925         return platform_driver_register(&sn95031_codec_driver);
 926 }
 927 module_init(sn95031_init);
 928
 929 static void __exit sn95031_exit(void)
 930 {
 931         pr_debug("driver exit called\n");
 932         platform_driver_unregister(&sn95031_codec_driver);
 933 }
 934 module_exit(sn95031_exit);
 935
 936 MODULE_DESCRIPTION("ASoC TI SN95031 codec driver");
 937 MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>");
 938 MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>");
 939 MODULE_LICENSE("GPL v2");
 940 MODULE_ALIAS("platform:sn95031");