root/sound/soc/codecs/twl4030.c

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DEFINITIONS

This source file includes following definitions.
  1. tw4030_init_ctl_cache
  2. twl4030_read
  3. twl4030_can_write_to_chip
  4. twl4030_write
  5. twl4030_wait_ms
  6. twl4030_codec_enable
  7. twl4030_setup_pdata_of
  8. twl4030_get_pdata
  9. twl4030_init_chip
  10. twl4030_apll_enable
  11. handsfree_ramp
  12. handsfreelpga_event
  13. handsfreerpga_event
  14. vibramux_event
  15. apll_event
  16. aif_event
  17. headset_ramp
  18. headsetlpga_event
  19. headsetrpga_event
  20. digimic_event
  21. snd_soc_get_volsw_twl4030
  22. snd_soc_put_volsw_twl4030
  23. snd_soc_get_volsw_r2_twl4030
  24. snd_soc_put_volsw_r2_twl4030
  25. snd_soc_put_twl4030_opmode_enum_double
  26. twl4030_set_bias_level
  27. twl4030_constraints
  28. twl4030_tdm_enable
  29. twl4030_startup
  30. twl4030_shutdown
  31. twl4030_hw_params
  32. twl4030_set_dai_sysclk
  33. twl4030_set_dai_fmt
  34. twl4030_set_tristate
  35. twl4030_voice_enable
  36. twl4030_voice_startup
  37. twl4030_voice_shutdown
  38. twl4030_voice_hw_params
  39. twl4030_voice_set_dai_sysclk
  40. twl4030_voice_set_dai_fmt
  41. twl4030_voice_set_tristate
  42. twl4030_soc_probe
  43. twl4030_soc_remove
  44. twl4030_codec_probe

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * ALSA SoC TWL4030 codec driver
   4  *
   5  * Author:      Steve Sakoman, <steve@sakoman.com>
   6  */
   7 
   8 #include <linux/module.h>
   9 #include <linux/moduleparam.h>
  10 #include <linux/init.h>
  11 #include <linux/delay.h>
  12 #include <linux/pm.h>
  13 #include <linux/i2c.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/of.h>
  16 #include <linux/of_gpio.h>
  17 #include <linux/mfd/twl.h>
  18 #include <linux/slab.h>
  19 #include <linux/gpio.h>
  20 #include <sound/core.h>
  21 #include <sound/pcm.h>
  22 #include <sound/pcm_params.h>
  23 #include <sound/soc.h>
  24 #include <sound/initval.h>
  25 #include <sound/tlv.h>
  26 
  27 /* Register descriptions are here */
  28 #include <linux/mfd/twl4030-audio.h>
  29 
  30 /* TWL4030 PMBR1 Register */
  31 #define TWL4030_PMBR1_REG               0x0D
  32 /* TWL4030 PMBR1 Register GPIO6 mux bits */
  33 #define TWL4030_GPIO6_PWM0_MUTE(value)  ((value & 0x03) << 2)
  34 
  35 #define TWL4030_CACHEREGNUM     (TWL4030_REG_MISC_SET_2 + 1)
  36 
  37 /* codec private data */
  38 struct twl4030_priv {
  39         unsigned int codec_powered;
  40 
  41         /* reference counts of AIF/APLL users */
  42         unsigned int apll_enabled;
  43 
  44         struct snd_pcm_substream *master_substream;
  45         struct snd_pcm_substream *slave_substream;
  46 
  47         unsigned int configured;
  48         unsigned int rate;
  49         unsigned int sample_bits;
  50         unsigned int channels;
  51 
  52         unsigned int sysclk;
  53 
  54         /* Output (with associated amp) states */
  55         u8 hsl_enabled, hsr_enabled;
  56         u8 earpiece_enabled;
  57         u8 predrivel_enabled, predriver_enabled;
  58         u8 carkitl_enabled, carkitr_enabled;
  59         u8 ctl_cache[TWL4030_REG_PRECKR_CTL - TWL4030_REG_EAR_CTL + 1];
  60 
  61         struct twl4030_codec_data *pdata;
  62 };
  63 
  64 static void tw4030_init_ctl_cache(struct twl4030_priv *twl4030)
  65 {
  66         int i;
  67         u8 byte;
  68 
  69         for (i = TWL4030_REG_EAR_CTL; i <= TWL4030_REG_PRECKR_CTL; i++) {
  70                 twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte, i);
  71                 twl4030->ctl_cache[i - TWL4030_REG_EAR_CTL] = byte;
  72         }
  73 }
  74 
  75 static unsigned int twl4030_read(struct snd_soc_component *component, unsigned int reg)
  76 {
  77         struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
  78         u8 value = 0;
  79 
  80         if (reg >= TWL4030_CACHEREGNUM)
  81                 return -EIO;
  82 
  83         switch (reg) {
  84         case TWL4030_REG_EAR_CTL:
  85         case TWL4030_REG_PREDL_CTL:
  86         case TWL4030_REG_PREDR_CTL:
  87         case TWL4030_REG_PRECKL_CTL:
  88         case TWL4030_REG_PRECKR_CTL:
  89         case TWL4030_REG_HS_GAIN_SET:
  90                 value = twl4030->ctl_cache[reg - TWL4030_REG_EAR_CTL];
  91                 break;
  92         default:
  93                 twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &value, reg);
  94                 break;
  95         }
  96 
  97         return value;
  98 }
  99 
 100 static bool twl4030_can_write_to_chip(struct twl4030_priv *twl4030,
 101                                       unsigned int reg)
 102 {
 103         bool write_to_reg = false;
 104 
 105         /* Decide if the given register can be written */
 106         switch (reg) {
 107         case TWL4030_REG_EAR_CTL:
 108                 if (twl4030->earpiece_enabled)
 109                         write_to_reg = true;
 110                 break;
 111         case TWL4030_REG_PREDL_CTL:
 112                 if (twl4030->predrivel_enabled)
 113                         write_to_reg = true;
 114                 break;
 115         case TWL4030_REG_PREDR_CTL:
 116                 if (twl4030->predriver_enabled)
 117                         write_to_reg = true;
 118                 break;
 119         case TWL4030_REG_PRECKL_CTL:
 120                 if (twl4030->carkitl_enabled)
 121                         write_to_reg = true;
 122                 break;
 123         case TWL4030_REG_PRECKR_CTL:
 124                 if (twl4030->carkitr_enabled)
 125                         write_to_reg = true;
 126                 break;
 127         case TWL4030_REG_HS_GAIN_SET:
 128                 if (twl4030->hsl_enabled || twl4030->hsr_enabled)
 129                         write_to_reg = true;
 130                 break;
 131         default:
 132                 /* All other register can be written */
 133                 write_to_reg = true;
 134                 break;
 135         }
 136 
 137         return write_to_reg;
 138 }
 139 
 140 static int twl4030_write(struct snd_soc_component *component, unsigned int reg,
 141                          unsigned int value)
 142 {
 143         struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
 144 
 145         /* Update the ctl cache */
 146         switch (reg) {
 147         case TWL4030_REG_EAR_CTL:
 148         case TWL4030_REG_PREDL_CTL:
 149         case TWL4030_REG_PREDR_CTL:
 150         case TWL4030_REG_PRECKL_CTL:
 151         case TWL4030_REG_PRECKR_CTL:
 152         case TWL4030_REG_HS_GAIN_SET:
 153                 twl4030->ctl_cache[reg - TWL4030_REG_EAR_CTL] = value;
 154                 break;
 155         default:
 156                 break;
 157         }
 158 
 159         if (twl4030_can_write_to_chip(twl4030, reg))
 160                 return twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, value, reg);
 161 
 162         return 0;
 163 }
 164 
 165 static inline void twl4030_wait_ms(int time)
 166 {
 167         if (time < 60) {
 168                 time *= 1000;
 169                 usleep_range(time, time + 500);
 170         } else {
 171                 msleep(time);
 172         }
 173 }
 174 
 175 static void twl4030_codec_enable(struct snd_soc_component *component, int enable)
 176 {
 177         struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
 178         int mode;
 179 
 180         if (enable == twl4030->codec_powered)
 181                 return;
 182 
 183         if (enable)
 184                 mode = twl4030_audio_enable_resource(TWL4030_AUDIO_RES_POWER);
 185         else
 186                 mode = twl4030_audio_disable_resource(TWL4030_AUDIO_RES_POWER);
 187 
 188         if (mode >= 0)
 189                 twl4030->codec_powered = enable;
 190 
 191         /* REVISIT: this delay is present in TI sample drivers */
 192         /* but there seems to be no TRM requirement for it     */
 193         udelay(10);
 194 }
 195 
 196 static void twl4030_setup_pdata_of(struct twl4030_codec_data *pdata,
 197                                    struct device_node *node)
 198 {
 199         int value;
 200 
 201         of_property_read_u32(node, "ti,digimic_delay",
 202                              &pdata->digimic_delay);
 203         of_property_read_u32(node, "ti,ramp_delay_value",
 204                              &pdata->ramp_delay_value);
 205         of_property_read_u32(node, "ti,offset_cncl_path",
 206                              &pdata->offset_cncl_path);
 207         if (!of_property_read_u32(node, "ti,hs_extmute", &value))
 208                 pdata->hs_extmute = value;
 209 
 210         pdata->hs_extmute_gpio = of_get_named_gpio(node,
 211                                                    "ti,hs_extmute_gpio", 0);
 212         if (gpio_is_valid(pdata->hs_extmute_gpio))
 213                 pdata->hs_extmute = 1;
 214 }
 215 
 216 static struct twl4030_codec_data *twl4030_get_pdata(struct snd_soc_component *component)
 217 {
 218         struct twl4030_codec_data *pdata = dev_get_platdata(component->dev);
 219         struct device_node *twl4030_codec_node = NULL;
 220 
 221         twl4030_codec_node = of_get_child_by_name(component->dev->parent->of_node,
 222                                                   "codec");
 223 
 224         if (!pdata && twl4030_codec_node) {
 225                 pdata = devm_kzalloc(component->dev,
 226                                      sizeof(struct twl4030_codec_data),
 227                                      GFP_KERNEL);
 228                 if (!pdata) {
 229                         of_node_put(twl4030_codec_node);
 230                         return NULL;
 231                 }
 232                 twl4030_setup_pdata_of(pdata, twl4030_codec_node);
 233                 of_node_put(twl4030_codec_node);
 234         }
 235 
 236         return pdata;
 237 }
 238 
 239 static void twl4030_init_chip(struct snd_soc_component *component)
 240 {
 241         struct twl4030_codec_data *pdata;
 242         struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
 243         u8 reg, byte;
 244         int i = 0;
 245 
 246         pdata = twl4030_get_pdata(component);
 247 
 248         if (pdata && pdata->hs_extmute) {
 249                 if (gpio_is_valid(pdata->hs_extmute_gpio)) {
 250                         int ret;
 251 
 252                         if (!pdata->hs_extmute_gpio)
 253                                 dev_warn(component->dev,
 254                                         "Extmute GPIO is 0 is this correct?\n");
 255 
 256                         ret = gpio_request_one(pdata->hs_extmute_gpio,
 257                                                GPIOF_OUT_INIT_LOW,
 258                                                "hs_extmute");
 259                         if (ret) {
 260                                 dev_err(component->dev,
 261                                         "Failed to get hs_extmute GPIO\n");
 262                                 pdata->hs_extmute_gpio = -1;
 263                         }
 264                 } else {
 265                         u8 pin_mux;
 266 
 267                         /* Set TWL4030 GPIO6 as EXTMUTE signal */
 268                         twl_i2c_read_u8(TWL4030_MODULE_INTBR, &pin_mux,
 269                                         TWL4030_PMBR1_REG);
 270                         pin_mux &= ~TWL4030_GPIO6_PWM0_MUTE(0x03);
 271                         pin_mux |= TWL4030_GPIO6_PWM0_MUTE(0x02);
 272                         twl_i2c_write_u8(TWL4030_MODULE_INTBR, pin_mux,
 273                                          TWL4030_PMBR1_REG);
 274                 }
 275         }
 276 
 277         /* Initialize the local ctl register cache */
 278         tw4030_init_ctl_cache(twl4030);
 279 
 280         /* anti-pop when changing analog gain */
 281         reg = twl4030_read(component, TWL4030_REG_MISC_SET_1);
 282         twl4030_write(component, TWL4030_REG_MISC_SET_1,
 283                       reg | TWL4030_SMOOTH_ANAVOL_EN);
 284 
 285         twl4030_write(component, TWL4030_REG_OPTION,
 286                       TWL4030_ATXL1_EN | TWL4030_ATXR1_EN |
 287                       TWL4030_ARXL2_EN | TWL4030_ARXR2_EN);
 288 
 289         /* REG_ARXR2_APGA_CTL reset according to the TRM: 0dB, DA_EN */
 290         twl4030_write(component, TWL4030_REG_ARXR2_APGA_CTL, 0x32);
 291 
 292         /* Machine dependent setup */
 293         if (!pdata)
 294                 return;
 295 
 296         twl4030->pdata = pdata;
 297 
 298         reg = twl4030_read(component, TWL4030_REG_HS_POPN_SET);
 299         reg &= ~TWL4030_RAMP_DELAY;
 300         reg |= (pdata->ramp_delay_value << 2);
 301         twl4030_write(component, TWL4030_REG_HS_POPN_SET, reg);
 302 
 303         /* initiate offset cancellation */
 304         twl4030_codec_enable(component, 1);
 305 
 306         reg = twl4030_read(component, TWL4030_REG_ANAMICL);
 307         reg &= ~TWL4030_OFFSET_CNCL_SEL;
 308         reg |= pdata->offset_cncl_path;
 309         twl4030_write(component, TWL4030_REG_ANAMICL,
 310                       reg | TWL4030_CNCL_OFFSET_START);
 311 
 312         /*
 313          * Wait for offset cancellation to complete.
 314          * Since this takes a while, do not slam the i2c.
 315          * Start polling the status after ~20ms.
 316          */
 317         msleep(20);
 318         do {
 319                 usleep_range(1000, 2000);
 320                 twl_set_regcache_bypass(TWL4030_MODULE_AUDIO_VOICE, true);
 321                 twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte,
 322                                 TWL4030_REG_ANAMICL);
 323                 twl_set_regcache_bypass(TWL4030_MODULE_AUDIO_VOICE, false);
 324         } while ((i++ < 100) &&
 325                  ((byte & TWL4030_CNCL_OFFSET_START) ==
 326                   TWL4030_CNCL_OFFSET_START));
 327 
 328         twl4030_codec_enable(component, 0);
 329 }
 330 
 331 static void twl4030_apll_enable(struct snd_soc_component *component, int enable)
 332 {
 333         struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
 334 
 335         if (enable) {
 336                 twl4030->apll_enabled++;
 337                 if (twl4030->apll_enabled == 1)
 338                         twl4030_audio_enable_resource(
 339                                                         TWL4030_AUDIO_RES_APLL);
 340         } else {
 341                 twl4030->apll_enabled--;
 342                 if (!twl4030->apll_enabled)
 343                         twl4030_audio_disable_resource(
 344                                                         TWL4030_AUDIO_RES_APLL);
 345         }
 346 }
 347 
 348 /* Earpiece */
 349 static const struct snd_kcontrol_new twl4030_dapm_earpiece_controls[] = {
 350         SOC_DAPM_SINGLE("Voice", TWL4030_REG_EAR_CTL, 0, 1, 0),
 351         SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_EAR_CTL, 1, 1, 0),
 352         SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_EAR_CTL, 2, 1, 0),
 353         SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_EAR_CTL, 3, 1, 0),
 354 };
 355 
 356 /* PreDrive Left */
 357 static const struct snd_kcontrol_new twl4030_dapm_predrivel_controls[] = {
 358         SOC_DAPM_SINGLE("Voice", TWL4030_REG_PREDL_CTL, 0, 1, 0),
 359         SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_PREDL_CTL, 1, 1, 0),
 360         SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_PREDL_CTL, 2, 1, 0),
 361         SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_PREDL_CTL, 3, 1, 0),
 362 };
 363 
 364 /* PreDrive Right */
 365 static const struct snd_kcontrol_new twl4030_dapm_predriver_controls[] = {
 366         SOC_DAPM_SINGLE("Voice", TWL4030_REG_PREDR_CTL, 0, 1, 0),
 367         SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_PREDR_CTL, 1, 1, 0),
 368         SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_PREDR_CTL, 2, 1, 0),
 369         SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_PREDR_CTL, 3, 1, 0),
 370 };
 371 
 372 /* Headset Left */
 373 static const struct snd_kcontrol_new twl4030_dapm_hsol_controls[] = {
 374         SOC_DAPM_SINGLE("Voice", TWL4030_REG_HS_SEL, 0, 1, 0),
 375         SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_HS_SEL, 1, 1, 0),
 376         SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_HS_SEL, 2, 1, 0),
 377 };
 378 
 379 /* Headset Right */
 380 static const struct snd_kcontrol_new twl4030_dapm_hsor_controls[] = {
 381         SOC_DAPM_SINGLE("Voice", TWL4030_REG_HS_SEL, 3, 1, 0),
 382         SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_HS_SEL, 4, 1, 0),
 383         SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_HS_SEL, 5, 1, 0),
 384 };
 385 
 386 /* Carkit Left */
 387 static const struct snd_kcontrol_new twl4030_dapm_carkitl_controls[] = {
 388         SOC_DAPM_SINGLE("Voice", TWL4030_REG_PRECKL_CTL, 0, 1, 0),
 389         SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_PRECKL_CTL, 1, 1, 0),
 390         SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_PRECKL_CTL, 2, 1, 0),
 391 };
 392 
 393 /* Carkit Right */
 394 static const struct snd_kcontrol_new twl4030_dapm_carkitr_controls[] = {
 395         SOC_DAPM_SINGLE("Voice", TWL4030_REG_PRECKR_CTL, 0, 1, 0),
 396         SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_PRECKR_CTL, 1, 1, 0),
 397         SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_PRECKR_CTL, 2, 1, 0),
 398 };
 399 
 400 /* Handsfree Left */
 401 static const char *twl4030_handsfreel_texts[] =
 402                 {"Voice", "AudioL1", "AudioL2", "AudioR2"};
 403 
 404 static SOC_ENUM_SINGLE_DECL(twl4030_handsfreel_enum,
 405                             TWL4030_REG_HFL_CTL, 0,
 406                             twl4030_handsfreel_texts);
 407 
 408 static const struct snd_kcontrol_new twl4030_dapm_handsfreel_control =
 409 SOC_DAPM_ENUM("Route", twl4030_handsfreel_enum);
 410 
 411 /* Handsfree Left virtual mute */
 412 static const struct snd_kcontrol_new twl4030_dapm_handsfreelmute_control =
 413         SOC_DAPM_SINGLE_VIRT("Switch", 1);
 414 
 415 /* Handsfree Right */
 416 static const char *twl4030_handsfreer_texts[] =
 417                 {"Voice", "AudioR1", "AudioR2", "AudioL2"};
 418 
 419 static SOC_ENUM_SINGLE_DECL(twl4030_handsfreer_enum,
 420                             TWL4030_REG_HFR_CTL, 0,
 421                             twl4030_handsfreer_texts);
 422 
 423 static const struct snd_kcontrol_new twl4030_dapm_handsfreer_control =
 424 SOC_DAPM_ENUM("Route", twl4030_handsfreer_enum);
 425 
 426 /* Handsfree Right virtual mute */
 427 static const struct snd_kcontrol_new twl4030_dapm_handsfreermute_control =
 428         SOC_DAPM_SINGLE_VIRT("Switch", 1);
 429 
 430 /* Vibra */
 431 /* Vibra audio path selection */
 432 static const char *twl4030_vibra_texts[] =
 433                 {"AudioL1", "AudioR1", "AudioL2", "AudioR2"};
 434 
 435 static SOC_ENUM_SINGLE_DECL(twl4030_vibra_enum,
 436                             TWL4030_REG_VIBRA_CTL, 2,
 437                             twl4030_vibra_texts);
 438 
 439 static const struct snd_kcontrol_new twl4030_dapm_vibra_control =
 440 SOC_DAPM_ENUM("Route", twl4030_vibra_enum);
 441 
 442 /* Vibra path selection: local vibrator (PWM) or audio driven */
 443 static const char *twl4030_vibrapath_texts[] =
 444                 {"Local vibrator", "Audio"};
 445 
 446 static SOC_ENUM_SINGLE_DECL(twl4030_vibrapath_enum,
 447                             TWL4030_REG_VIBRA_CTL, 4,
 448                             twl4030_vibrapath_texts);
 449 
 450 static const struct snd_kcontrol_new twl4030_dapm_vibrapath_control =
 451 SOC_DAPM_ENUM("Route", twl4030_vibrapath_enum);
 452 
 453 /* Left analog microphone selection */
 454 static const struct snd_kcontrol_new twl4030_dapm_analoglmic_controls[] = {
 455         SOC_DAPM_SINGLE("Main Mic Capture Switch",
 456                         TWL4030_REG_ANAMICL, 0, 1, 0),
 457         SOC_DAPM_SINGLE("Headset Mic Capture Switch",
 458                         TWL4030_REG_ANAMICL, 1, 1, 0),
 459         SOC_DAPM_SINGLE("AUXL Capture Switch",
 460                         TWL4030_REG_ANAMICL, 2, 1, 0),
 461         SOC_DAPM_SINGLE("Carkit Mic Capture Switch",
 462                         TWL4030_REG_ANAMICL, 3, 1, 0),
 463 };
 464 
 465 /* Right analog microphone selection */
 466 static const struct snd_kcontrol_new twl4030_dapm_analogrmic_controls[] = {
 467         SOC_DAPM_SINGLE("Sub Mic Capture Switch", TWL4030_REG_ANAMICR, 0, 1, 0),
 468         SOC_DAPM_SINGLE("AUXR Capture Switch", TWL4030_REG_ANAMICR, 2, 1, 0),
 469 };
 470 
 471 /* TX1 L/R Analog/Digital microphone selection */
 472 static const char *twl4030_micpathtx1_texts[] =
 473                 {"Analog", "Digimic0"};
 474 
 475 static SOC_ENUM_SINGLE_DECL(twl4030_micpathtx1_enum,
 476                             TWL4030_REG_ADCMICSEL, 0,
 477                             twl4030_micpathtx1_texts);
 478 
 479 static const struct snd_kcontrol_new twl4030_dapm_micpathtx1_control =
 480 SOC_DAPM_ENUM("Route", twl4030_micpathtx1_enum);
 481 
 482 /* TX2 L/R Analog/Digital microphone selection */
 483 static const char *twl4030_micpathtx2_texts[] =
 484                 {"Analog", "Digimic1"};
 485 
 486 static SOC_ENUM_SINGLE_DECL(twl4030_micpathtx2_enum,
 487                             TWL4030_REG_ADCMICSEL, 2,
 488                             twl4030_micpathtx2_texts);
 489 
 490 static const struct snd_kcontrol_new twl4030_dapm_micpathtx2_control =
 491 SOC_DAPM_ENUM("Route", twl4030_micpathtx2_enum);
 492 
 493 /* Analog bypass for AudioR1 */
 494 static const struct snd_kcontrol_new twl4030_dapm_abypassr1_control =
 495         SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXR1_APGA_CTL, 2, 1, 0);
 496 
 497 /* Analog bypass for AudioL1 */
 498 static const struct snd_kcontrol_new twl4030_dapm_abypassl1_control =
 499         SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXL1_APGA_CTL, 2, 1, 0);
 500 
 501 /* Analog bypass for AudioR2 */
 502 static const struct snd_kcontrol_new twl4030_dapm_abypassr2_control =
 503         SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXR2_APGA_CTL, 2, 1, 0);
 504 
 505 /* Analog bypass for AudioL2 */
 506 static const struct snd_kcontrol_new twl4030_dapm_abypassl2_control =
 507         SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXL2_APGA_CTL, 2, 1, 0);
 508 
 509 /* Analog bypass for Voice */
 510 static const struct snd_kcontrol_new twl4030_dapm_abypassv_control =
 511         SOC_DAPM_SINGLE("Switch", TWL4030_REG_VDL_APGA_CTL, 2, 1, 0);
 512 
 513 /* Digital bypass gain, mute instead of -30dB */
 514 static const DECLARE_TLV_DB_RANGE(twl4030_dapm_dbypass_tlv,
 515         0, 1, TLV_DB_SCALE_ITEM(-3000, 600, 1),
 516         2, 3, TLV_DB_SCALE_ITEM(-2400, 0, 0),
 517         4, 7, TLV_DB_SCALE_ITEM(-1800, 600, 0)
 518 );
 519 
 520 /* Digital bypass left (TX1L -> RX2L) */
 521 static const struct snd_kcontrol_new twl4030_dapm_dbypassl_control =
 522         SOC_DAPM_SINGLE_TLV("Volume",
 523                         TWL4030_REG_ATX2ARXPGA, 3, 7, 0,
 524                         twl4030_dapm_dbypass_tlv);
 525 
 526 /* Digital bypass right (TX1R -> RX2R) */
 527 static const struct snd_kcontrol_new twl4030_dapm_dbypassr_control =
 528         SOC_DAPM_SINGLE_TLV("Volume",
 529                         TWL4030_REG_ATX2ARXPGA, 0, 7, 0,
 530                         twl4030_dapm_dbypass_tlv);
 531 
 532 /*
 533  * Voice Sidetone GAIN volume control:
 534  * from -51 to -10 dB in 1 dB steps (mute instead of -51 dB)
 535  */
 536 static DECLARE_TLV_DB_SCALE(twl4030_dapm_dbypassv_tlv, -5100, 100, 1);
 537 
 538 /* Digital bypass voice: sidetone (VUL -> VDL)*/
 539 static const struct snd_kcontrol_new twl4030_dapm_dbypassv_control =
 540         SOC_DAPM_SINGLE_TLV("Volume",
 541                         TWL4030_REG_VSTPGA, 0, 0x29, 0,
 542                         twl4030_dapm_dbypassv_tlv);
 543 
 544 /*
 545  * Output PGA builder:
 546  * Handle the muting and unmuting of the given output (turning off the
 547  * amplifier associated with the output pin)
 548  * On mute bypass the reg_cache and write 0 to the register
 549  * On unmute: restore the register content from the reg_cache
 550  * Outputs handled in this way:  Earpiece, PreDrivL/R, CarkitL/R
 551  */
 552 #define TWL4030_OUTPUT_PGA(pin_name, reg, mask)                         \
 553 static int pin_name##pga_event(struct snd_soc_dapm_widget *w,           \
 554                                struct snd_kcontrol *kcontrol, int event) \
 555 {                                                                       \
 556         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);       \
 557         struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component); \
 558                                                                         \
 559         switch (event) {                                                \
 560         case SND_SOC_DAPM_POST_PMU:                                     \
 561                 twl4030->pin_name##_enabled = 1;                        \
 562                 twl4030_write(component, reg, twl4030_read(component, reg));    \
 563                 break;                                                  \
 564         case SND_SOC_DAPM_POST_PMD:                                     \
 565                 twl4030->pin_name##_enabled = 0;                        \
 566                 twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, 0, reg);   \
 567                 break;                                                  \
 568         }                                                               \
 569         return 0;                                                       \
 570 }
 571 
 572 TWL4030_OUTPUT_PGA(earpiece, TWL4030_REG_EAR_CTL, TWL4030_EAR_GAIN);
 573 TWL4030_OUTPUT_PGA(predrivel, TWL4030_REG_PREDL_CTL, TWL4030_PREDL_GAIN);
 574 TWL4030_OUTPUT_PGA(predriver, TWL4030_REG_PREDR_CTL, TWL4030_PREDR_GAIN);
 575 TWL4030_OUTPUT_PGA(carkitl, TWL4030_REG_PRECKL_CTL, TWL4030_PRECKL_GAIN);
 576 TWL4030_OUTPUT_PGA(carkitr, TWL4030_REG_PRECKR_CTL, TWL4030_PRECKR_GAIN);
 577 
 578 static void handsfree_ramp(struct snd_soc_component *component, int reg, int ramp)
 579 {
 580         unsigned char hs_ctl;
 581 
 582         hs_ctl = twl4030_read(component, reg);
 583 
 584         if (ramp) {
 585                 /* HF ramp-up */
 586                 hs_ctl |= TWL4030_HF_CTL_REF_EN;
 587                 twl4030_write(component, reg, hs_ctl);
 588                 udelay(10);
 589                 hs_ctl |= TWL4030_HF_CTL_RAMP_EN;
 590                 twl4030_write(component, reg, hs_ctl);
 591                 udelay(40);
 592                 hs_ctl |= TWL4030_HF_CTL_LOOP_EN;
 593                 hs_ctl |= TWL4030_HF_CTL_HB_EN;
 594                 twl4030_write(component, reg, hs_ctl);
 595         } else {
 596                 /* HF ramp-down */
 597                 hs_ctl &= ~TWL4030_HF_CTL_LOOP_EN;
 598                 hs_ctl &= ~TWL4030_HF_CTL_HB_EN;
 599                 twl4030_write(component, reg, hs_ctl);
 600                 hs_ctl &= ~TWL4030_HF_CTL_RAMP_EN;
 601                 twl4030_write(component, reg, hs_ctl);
 602                 udelay(40);
 603                 hs_ctl &= ~TWL4030_HF_CTL_REF_EN;
 604                 twl4030_write(component, reg, hs_ctl);
 605         }
 606 }
 607 
 608 static int handsfreelpga_event(struct snd_soc_dapm_widget *w,
 609                                struct snd_kcontrol *kcontrol, int event)
 610 {
 611         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 612 
 613         switch (event) {
 614         case SND_SOC_DAPM_POST_PMU:
 615                 handsfree_ramp(component, TWL4030_REG_HFL_CTL, 1);
 616                 break;
 617         case SND_SOC_DAPM_POST_PMD:
 618                 handsfree_ramp(component, TWL4030_REG_HFL_CTL, 0);
 619                 break;
 620         }
 621         return 0;
 622 }
 623 
 624 static int handsfreerpga_event(struct snd_soc_dapm_widget *w,
 625                                struct snd_kcontrol *kcontrol, int event)
 626 {
 627         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 628 
 629         switch (event) {
 630         case SND_SOC_DAPM_POST_PMU:
 631                 handsfree_ramp(component, TWL4030_REG_HFR_CTL, 1);
 632                 break;
 633         case SND_SOC_DAPM_POST_PMD:
 634                 handsfree_ramp(component, TWL4030_REG_HFR_CTL, 0);
 635                 break;
 636         }
 637         return 0;
 638 }
 639 
 640 static int vibramux_event(struct snd_soc_dapm_widget *w,
 641                           struct snd_kcontrol *kcontrol, int event)
 642 {
 643         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 644 
 645         twl4030_write(component, TWL4030_REG_VIBRA_SET, 0xff);
 646         return 0;
 647 }
 648 
 649 static int apll_event(struct snd_soc_dapm_widget *w,
 650                       struct snd_kcontrol *kcontrol, int event)
 651 {
 652         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 653 
 654         switch (event) {
 655         case SND_SOC_DAPM_PRE_PMU:
 656                 twl4030_apll_enable(component, 1);
 657                 break;
 658         case SND_SOC_DAPM_POST_PMD:
 659                 twl4030_apll_enable(component, 0);
 660                 break;
 661         }
 662         return 0;
 663 }
 664 
 665 static int aif_event(struct snd_soc_dapm_widget *w,
 666                      struct snd_kcontrol *kcontrol, int event)
 667 {
 668         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 669         u8 audio_if;
 670 
 671         audio_if = twl4030_read(component, TWL4030_REG_AUDIO_IF);
 672         switch (event) {
 673         case SND_SOC_DAPM_PRE_PMU:
 674                 /* Enable AIF */
 675                 /* enable the PLL before we use it to clock the DAI */
 676                 twl4030_apll_enable(component, 1);
 677 
 678                 twl4030_write(component, TWL4030_REG_AUDIO_IF,
 679                               audio_if | TWL4030_AIF_EN);
 680                 break;
 681         case SND_SOC_DAPM_POST_PMD:
 682                 /* disable the DAI before we stop it's source PLL */
 683                 twl4030_write(component, TWL4030_REG_AUDIO_IF,
 684                               audio_if &  ~TWL4030_AIF_EN);
 685                 twl4030_apll_enable(component, 0);
 686                 break;
 687         }
 688         return 0;
 689 }
 690 
 691 static void headset_ramp(struct snd_soc_component *component, int ramp)
 692 {
 693         unsigned char hs_gain, hs_pop;
 694         struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
 695         struct twl4030_codec_data *pdata = twl4030->pdata;
 696         /* Base values for ramp delay calculation: 2^19 - 2^26 */
 697         unsigned int ramp_base[] = {524288, 1048576, 2097152, 4194304,
 698                                     8388608, 16777216, 33554432, 67108864};
 699         unsigned int delay;
 700 
 701         hs_gain = twl4030_read(component, TWL4030_REG_HS_GAIN_SET);
 702         hs_pop = twl4030_read(component, TWL4030_REG_HS_POPN_SET);
 703         delay = (ramp_base[(hs_pop & TWL4030_RAMP_DELAY) >> 2] /
 704                 twl4030->sysclk) + 1;
 705 
 706         /* Enable external mute control, this dramatically reduces
 707          * the pop-noise */
 708         if (pdata && pdata->hs_extmute) {
 709                 if (gpio_is_valid(pdata->hs_extmute_gpio)) {
 710                         gpio_set_value(pdata->hs_extmute_gpio, 1);
 711                 } else {
 712                         hs_pop |= TWL4030_EXTMUTE;
 713                         twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
 714                 }
 715         }
 716 
 717         if (ramp) {
 718                 /* Headset ramp-up according to the TRM */
 719                 hs_pop |= TWL4030_VMID_EN;
 720                 twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
 721                 /* Actually write to the register */
 722                 twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, hs_gain,
 723                                  TWL4030_REG_HS_GAIN_SET);
 724                 hs_pop |= TWL4030_RAMP_EN;
 725                 twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
 726                 /* Wait ramp delay time + 1, so the VMID can settle */
 727                 twl4030_wait_ms(delay);
 728         } else {
 729                 /* Headset ramp-down _not_ according to
 730                  * the TRM, but in a way that it is working */
 731                 hs_pop &= ~TWL4030_RAMP_EN;
 732                 twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
 733                 /* Wait ramp delay time + 1, so the VMID can settle */
 734                 twl4030_wait_ms(delay);
 735                 /* Bypass the reg_cache to mute the headset */
 736                 twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, hs_gain & (~0x0f),
 737                                  TWL4030_REG_HS_GAIN_SET);
 738 
 739                 hs_pop &= ~TWL4030_VMID_EN;
 740                 twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
 741         }
 742 
 743         /* Disable external mute */
 744         if (pdata && pdata->hs_extmute) {
 745                 if (gpio_is_valid(pdata->hs_extmute_gpio)) {
 746                         gpio_set_value(pdata->hs_extmute_gpio, 0);
 747                 } else {
 748                         hs_pop &= ~TWL4030_EXTMUTE;
 749                         twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
 750                 }
 751         }
 752 }
 753 
 754 static int headsetlpga_event(struct snd_soc_dapm_widget *w,
 755                              struct snd_kcontrol *kcontrol, int event)
 756 {
 757         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 758         struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
 759 
 760         switch (event) {
 761         case SND_SOC_DAPM_POST_PMU:
 762                 /* Do the ramp-up only once */
 763                 if (!twl4030->hsr_enabled)
 764                         headset_ramp(component, 1);
 765 
 766                 twl4030->hsl_enabled = 1;
 767                 break;
 768         case SND_SOC_DAPM_POST_PMD:
 769                 /* Do the ramp-down only if both headsetL/R is disabled */
 770                 if (!twl4030->hsr_enabled)
 771                         headset_ramp(component, 0);
 772 
 773                 twl4030->hsl_enabled = 0;
 774                 break;
 775         }
 776         return 0;
 777 }
 778 
 779 static int headsetrpga_event(struct snd_soc_dapm_widget *w,
 780                              struct snd_kcontrol *kcontrol, int event)
 781 {
 782         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 783         struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
 784 
 785         switch (event) {
 786         case SND_SOC_DAPM_POST_PMU:
 787                 /* Do the ramp-up only once */
 788                 if (!twl4030->hsl_enabled)
 789                         headset_ramp(component, 1);
 790 
 791                 twl4030->hsr_enabled = 1;
 792                 break;
 793         case SND_SOC_DAPM_POST_PMD:
 794                 /* Do the ramp-down only if both headsetL/R is disabled */
 795                 if (!twl4030->hsl_enabled)
 796                         headset_ramp(component, 0);
 797 
 798                 twl4030->hsr_enabled = 0;
 799                 break;
 800         }
 801         return 0;
 802 }
 803 
 804 static int digimic_event(struct snd_soc_dapm_widget *w,
 805                          struct snd_kcontrol *kcontrol, int event)
 806 {
 807         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 808         struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
 809         struct twl4030_codec_data *pdata = twl4030->pdata;
 810 
 811         if (pdata && pdata->digimic_delay)
 812                 twl4030_wait_ms(pdata->digimic_delay);
 813         return 0;
 814 }
 815 
 816 /*
 817  * Some of the gain controls in TWL (mostly those which are associated with
 818  * the outputs) are implemented in an interesting way:
 819  * 0x0 : Power down (mute)
 820  * 0x1 : 6dB
 821  * 0x2 : 0 dB
 822  * 0x3 : -6 dB
 823  * Inverting not going to help with these.
 824  * Custom volsw and volsw_2r get/put functions to handle these gain bits.
 825  */
 826 static int snd_soc_get_volsw_twl4030(struct snd_kcontrol *kcontrol,
 827                                      struct snd_ctl_elem_value *ucontrol)
 828 {
 829         struct soc_mixer_control *mc =
 830                 (struct soc_mixer_control *)kcontrol->private_value;
 831         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 832         unsigned int reg = mc->reg;
 833         unsigned int shift = mc->shift;
 834         unsigned int rshift = mc->rshift;
 835         int max = mc->max;
 836         int mask = (1 << fls(max)) - 1;
 837 
 838         ucontrol->value.integer.value[0] =
 839                 (twl4030_read(component, reg) >> shift) & mask;
 840         if (ucontrol->value.integer.value[0])
 841                 ucontrol->value.integer.value[0] =
 842                         max + 1 - ucontrol->value.integer.value[0];
 843 
 844         if (shift != rshift) {
 845                 ucontrol->value.integer.value[1] =
 846                         (twl4030_read(component, reg) >> rshift) & mask;
 847                 if (ucontrol->value.integer.value[1])
 848                         ucontrol->value.integer.value[1] =
 849                                 max + 1 - ucontrol->value.integer.value[1];
 850         }
 851 
 852         return 0;
 853 }
 854 
 855 static int snd_soc_put_volsw_twl4030(struct snd_kcontrol *kcontrol,
 856                                      struct snd_ctl_elem_value *ucontrol)
 857 {
 858         struct soc_mixer_control *mc =
 859                 (struct soc_mixer_control *)kcontrol->private_value;
 860         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 861         unsigned int reg = mc->reg;
 862         unsigned int shift = mc->shift;
 863         unsigned int rshift = mc->rshift;
 864         int max = mc->max;
 865         int mask = (1 << fls(max)) - 1;
 866         unsigned short val, val2, val_mask;
 867 
 868         val = (ucontrol->value.integer.value[0] & mask);
 869 
 870         val_mask = mask << shift;
 871         if (val)
 872                 val = max + 1 - val;
 873         val = val << shift;
 874         if (shift != rshift) {
 875                 val2 = (ucontrol->value.integer.value[1] & mask);
 876                 val_mask |= mask << rshift;
 877                 if (val2)
 878                         val2 = max + 1 - val2;
 879                 val |= val2 << rshift;
 880         }
 881         return snd_soc_component_update_bits(component, reg, val_mask, val);
 882 }
 883 
 884 static int snd_soc_get_volsw_r2_twl4030(struct snd_kcontrol *kcontrol,
 885                                         struct snd_ctl_elem_value *ucontrol)
 886 {
 887         struct soc_mixer_control *mc =
 888                 (struct soc_mixer_control *)kcontrol->private_value;
 889         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 890         unsigned int reg = mc->reg;
 891         unsigned int reg2 = mc->rreg;
 892         unsigned int shift = mc->shift;
 893         int max = mc->max;
 894         int mask = (1<<fls(max))-1;
 895 
 896         ucontrol->value.integer.value[0] =
 897                 (twl4030_read(component, reg) >> shift) & mask;
 898         ucontrol->value.integer.value[1] =
 899                 (twl4030_read(component, reg2) >> shift) & mask;
 900 
 901         if (ucontrol->value.integer.value[0])
 902                 ucontrol->value.integer.value[0] =
 903                         max + 1 - ucontrol->value.integer.value[0];
 904         if (ucontrol->value.integer.value[1])
 905                 ucontrol->value.integer.value[1] =
 906                         max + 1 - ucontrol->value.integer.value[1];
 907 
 908         return 0;
 909 }
 910 
 911 static int snd_soc_put_volsw_r2_twl4030(struct snd_kcontrol *kcontrol,
 912                                         struct snd_ctl_elem_value *ucontrol)
 913 {
 914         struct soc_mixer_control *mc =
 915                 (struct soc_mixer_control *)kcontrol->private_value;
 916         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 917         unsigned int reg = mc->reg;
 918         unsigned int reg2 = mc->rreg;
 919         unsigned int shift = mc->shift;
 920         int max = mc->max;
 921         int mask = (1 << fls(max)) - 1;
 922         int err;
 923         unsigned short val, val2, val_mask;
 924 
 925         val_mask = mask << shift;
 926         val = (ucontrol->value.integer.value[0] & mask);
 927         val2 = (ucontrol->value.integer.value[1] & mask);
 928 
 929         if (val)
 930                 val = max + 1 - val;
 931         if (val2)
 932                 val2 = max + 1 - val2;
 933 
 934         val = val << shift;
 935         val2 = val2 << shift;
 936 
 937         err = snd_soc_component_update_bits(component, reg, val_mask, val);
 938         if (err < 0)
 939                 return err;
 940 
 941         err = snd_soc_component_update_bits(component, reg2, val_mask, val2);
 942         return err;
 943 }
 944 
 945 /* Codec operation modes */
 946 static const char *twl4030_op_modes_texts[] = {
 947         "Option 2 (voice/audio)", "Option 1 (audio)"
 948 };
 949 
 950 static SOC_ENUM_SINGLE_DECL(twl4030_op_modes_enum,
 951                             TWL4030_REG_CODEC_MODE, 0,
 952                             twl4030_op_modes_texts);
 953 
 954 static int snd_soc_put_twl4030_opmode_enum_double(struct snd_kcontrol *kcontrol,
 955         struct snd_ctl_elem_value *ucontrol)
 956 {
 957         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 958         struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
 959 
 960         if (twl4030->configured) {
 961                 dev_err(component->dev,
 962                         "operation mode cannot be changed on-the-fly\n");
 963                 return -EBUSY;
 964         }
 965 
 966         return snd_soc_put_enum_double(kcontrol, ucontrol);
 967 }
 968 
 969 /*
 970  * FGAIN volume control:
 971  * from -62 to 0 dB in 1 dB steps (mute instead of -63 dB)
 972  */
 973 static DECLARE_TLV_DB_SCALE(digital_fine_tlv, -6300, 100, 1);
 974 
 975 /*
 976  * CGAIN volume control:
 977  * 0 dB to 12 dB in 6 dB steps
 978  * value 2 and 3 means 12 dB
 979  */
 980 static DECLARE_TLV_DB_SCALE(digital_coarse_tlv, 0, 600, 0);
 981 
 982 /*
 983  * Voice Downlink GAIN volume control:
 984  * from -37 to 12 dB in 1 dB steps (mute instead of -37 dB)
 985  */
 986 static DECLARE_TLV_DB_SCALE(digital_voice_downlink_tlv, -3700, 100, 1);
 987 
 988 /*
 989  * Analog playback gain
 990  * -24 dB to 12 dB in 2 dB steps
 991  */
 992 static DECLARE_TLV_DB_SCALE(analog_tlv, -2400, 200, 0);
 993 
 994 /*
 995  * Gain controls tied to outputs
 996  * -6 dB to 6 dB in 6 dB steps (mute instead of -12)
 997  */
 998 static DECLARE_TLV_DB_SCALE(output_tvl, -1200, 600, 1);
 999 
1000 /*
1001  * Gain control for earpiece amplifier
1002  * 0 dB to 12 dB in 6 dB steps (mute instead of -6)
1003  */
1004 static DECLARE_TLV_DB_SCALE(output_ear_tvl, -600, 600, 1);
1005 
1006 /*
1007  * Capture gain after the ADCs
1008  * from 0 dB to 31 dB in 1 dB steps
1009  */
1010 static DECLARE_TLV_DB_SCALE(digital_capture_tlv, 0, 100, 0);
1011 
1012 /*
1013  * Gain control for input amplifiers
1014  * 0 dB to 30 dB in 6 dB steps
1015  */
1016 static DECLARE_TLV_DB_SCALE(input_gain_tlv, 0, 600, 0);
1017 
1018 /* AVADC clock priority */
1019 static const char *twl4030_avadc_clk_priority_texts[] = {
1020         "Voice high priority", "HiFi high priority"
1021 };
1022 
1023 static SOC_ENUM_SINGLE_DECL(twl4030_avadc_clk_priority_enum,
1024                             TWL4030_REG_AVADC_CTL, 2,
1025                             twl4030_avadc_clk_priority_texts);
1026 
1027 static const char *twl4030_rampdelay_texts[] = {
1028         "27/20/14 ms", "55/40/27 ms", "109/81/55 ms", "218/161/109 ms",
1029         "437/323/218 ms", "874/645/437 ms", "1748/1291/874 ms",
1030         "3495/2581/1748 ms"
1031 };
1032 
1033 static SOC_ENUM_SINGLE_DECL(twl4030_rampdelay_enum,
1034                             TWL4030_REG_HS_POPN_SET, 2,
1035                             twl4030_rampdelay_texts);
1036 
1037 /* Vibra H-bridge direction mode */
1038 static const char *twl4030_vibradirmode_texts[] = {
1039         "Vibra H-bridge direction", "Audio data MSB",
1040 };
1041 
1042 static SOC_ENUM_SINGLE_DECL(twl4030_vibradirmode_enum,
1043                             TWL4030_REG_VIBRA_CTL, 5,
1044                             twl4030_vibradirmode_texts);
1045 
1046 /* Vibra H-bridge direction */
1047 static const char *twl4030_vibradir_texts[] = {
1048         "Positive polarity", "Negative polarity",
1049 };
1050 
1051 static SOC_ENUM_SINGLE_DECL(twl4030_vibradir_enum,
1052                             TWL4030_REG_VIBRA_CTL, 1,
1053                             twl4030_vibradir_texts);
1054 
1055 /* Digimic Left and right swapping */
1056 static const char *twl4030_digimicswap_texts[] = {
1057         "Not swapped", "Swapped",
1058 };
1059 
1060 static SOC_ENUM_SINGLE_DECL(twl4030_digimicswap_enum,
1061                             TWL4030_REG_MISC_SET_1, 0,
1062                             twl4030_digimicswap_texts);
1063 
1064 static const struct snd_kcontrol_new twl4030_snd_controls[] = {
1065         /* Codec operation mode control */
1066         SOC_ENUM_EXT("Codec Operation Mode", twl4030_op_modes_enum,
1067                 snd_soc_get_enum_double,
1068                 snd_soc_put_twl4030_opmode_enum_double),
1069 
1070         /* Common playback gain controls */
1071         SOC_DOUBLE_R_TLV("DAC1 Digital Fine Playback Volume",
1072                 TWL4030_REG_ARXL1PGA, TWL4030_REG_ARXR1PGA,
1073                 0, 0x3f, 0, digital_fine_tlv),
1074         SOC_DOUBLE_R_TLV("DAC2 Digital Fine Playback Volume",
1075                 TWL4030_REG_ARXL2PGA, TWL4030_REG_ARXR2PGA,
1076                 0, 0x3f, 0, digital_fine_tlv),
1077 
1078         SOC_DOUBLE_R_TLV("DAC1 Digital Coarse Playback Volume",
1079                 TWL4030_REG_ARXL1PGA, TWL4030_REG_ARXR1PGA,
1080                 6, 0x2, 0, digital_coarse_tlv),
1081         SOC_DOUBLE_R_TLV("DAC2 Digital Coarse Playback Volume",
1082                 TWL4030_REG_ARXL2PGA, TWL4030_REG_ARXR2PGA,
1083                 6, 0x2, 0, digital_coarse_tlv),
1084 
1085         SOC_DOUBLE_R_TLV("DAC1 Analog Playback Volume",
1086                 TWL4030_REG_ARXL1_APGA_CTL, TWL4030_REG_ARXR1_APGA_CTL,
1087                 3, 0x12, 1, analog_tlv),
1088         SOC_DOUBLE_R_TLV("DAC2 Analog Playback Volume",
1089                 TWL4030_REG_ARXL2_APGA_CTL, TWL4030_REG_ARXR2_APGA_CTL,
1090                 3, 0x12, 1, analog_tlv),
1091         SOC_DOUBLE_R("DAC1 Analog Playback Switch",
1092                 TWL4030_REG_ARXL1_APGA_CTL, TWL4030_REG_ARXR1_APGA_CTL,
1093                 1, 1, 0),
1094         SOC_DOUBLE_R("DAC2 Analog Playback Switch",
1095                 TWL4030_REG_ARXL2_APGA_CTL, TWL4030_REG_ARXR2_APGA_CTL,
1096                 1, 1, 0),
1097 
1098         /* Common voice downlink gain controls */
1099         SOC_SINGLE_TLV("DAC Voice Digital Downlink Volume",
1100                 TWL4030_REG_VRXPGA, 0, 0x31, 0, digital_voice_downlink_tlv),
1101 
1102         SOC_SINGLE_TLV("DAC Voice Analog Downlink Volume",
1103                 TWL4030_REG_VDL_APGA_CTL, 3, 0x12, 1, analog_tlv),
1104 
1105         SOC_SINGLE("DAC Voice Analog Downlink Switch",
1106                 TWL4030_REG_VDL_APGA_CTL, 1, 1, 0),
1107 
1108         /* Separate output gain controls */
1109         SOC_DOUBLE_R_EXT_TLV("PreDriv Playback Volume",
1110                 TWL4030_REG_PREDL_CTL, TWL4030_REG_PREDR_CTL,
1111                 4, 3, 0, snd_soc_get_volsw_r2_twl4030,
1112                 snd_soc_put_volsw_r2_twl4030, output_tvl),
1113 
1114         SOC_DOUBLE_EXT_TLV("Headset Playback Volume",
1115                 TWL4030_REG_HS_GAIN_SET, 0, 2, 3, 0, snd_soc_get_volsw_twl4030,
1116                 snd_soc_put_volsw_twl4030, output_tvl),
1117 
1118         SOC_DOUBLE_R_EXT_TLV("Carkit Playback Volume",
1119                 TWL4030_REG_PRECKL_CTL, TWL4030_REG_PRECKR_CTL,
1120                 4, 3, 0, snd_soc_get_volsw_r2_twl4030,
1121                 snd_soc_put_volsw_r2_twl4030, output_tvl),
1122 
1123         SOC_SINGLE_EXT_TLV("Earpiece Playback Volume",
1124                 TWL4030_REG_EAR_CTL, 4, 3, 0, snd_soc_get_volsw_twl4030,
1125                 snd_soc_put_volsw_twl4030, output_ear_tvl),
1126 
1127         /* Common capture gain controls */
1128         SOC_DOUBLE_R_TLV("TX1 Digital Capture Volume",
1129                 TWL4030_REG_ATXL1PGA, TWL4030_REG_ATXR1PGA,
1130                 0, 0x1f, 0, digital_capture_tlv),
1131         SOC_DOUBLE_R_TLV("TX2 Digital Capture Volume",
1132                 TWL4030_REG_AVTXL2PGA, TWL4030_REG_AVTXR2PGA,
1133                 0, 0x1f, 0, digital_capture_tlv),
1134 
1135         SOC_DOUBLE_TLV("Analog Capture Volume", TWL4030_REG_ANAMIC_GAIN,
1136                 0, 3, 5, 0, input_gain_tlv),
1137 
1138         SOC_ENUM("AVADC Clock Priority", twl4030_avadc_clk_priority_enum),
1139 
1140         SOC_ENUM("HS ramp delay", twl4030_rampdelay_enum),
1141 
1142         SOC_ENUM("Vibra H-bridge mode", twl4030_vibradirmode_enum),
1143         SOC_ENUM("Vibra H-bridge direction", twl4030_vibradir_enum),
1144 
1145         SOC_ENUM("Digimic LR Swap", twl4030_digimicswap_enum),
1146 };
1147 
1148 static const struct snd_soc_dapm_widget twl4030_dapm_widgets[] = {
1149         /* Left channel inputs */
1150         SND_SOC_DAPM_INPUT("MAINMIC"),
1151         SND_SOC_DAPM_INPUT("HSMIC"),
1152         SND_SOC_DAPM_INPUT("AUXL"),
1153         SND_SOC_DAPM_INPUT("CARKITMIC"),
1154         /* Right channel inputs */
1155         SND_SOC_DAPM_INPUT("SUBMIC"),
1156         SND_SOC_DAPM_INPUT("AUXR"),
1157         /* Digital microphones (Stereo) */
1158         SND_SOC_DAPM_INPUT("DIGIMIC0"),
1159         SND_SOC_DAPM_INPUT("DIGIMIC1"),
1160 
1161         /* Outputs */
1162         SND_SOC_DAPM_OUTPUT("EARPIECE"),
1163         SND_SOC_DAPM_OUTPUT("PREDRIVEL"),
1164         SND_SOC_DAPM_OUTPUT("PREDRIVER"),
1165         SND_SOC_DAPM_OUTPUT("HSOL"),
1166         SND_SOC_DAPM_OUTPUT("HSOR"),
1167         SND_SOC_DAPM_OUTPUT("CARKITL"),
1168         SND_SOC_DAPM_OUTPUT("CARKITR"),
1169         SND_SOC_DAPM_OUTPUT("HFL"),
1170         SND_SOC_DAPM_OUTPUT("HFR"),
1171         SND_SOC_DAPM_OUTPUT("VIBRA"),
1172 
1173         /* AIF and APLL clocks for running DAIs (including loopback) */
1174         SND_SOC_DAPM_OUTPUT("Virtual HiFi OUT"),
1175         SND_SOC_DAPM_INPUT("Virtual HiFi IN"),
1176         SND_SOC_DAPM_OUTPUT("Virtual Voice OUT"),
1177 
1178         /* DACs */
1179         SND_SOC_DAPM_DAC("DAC Right1", NULL, SND_SOC_NOPM, 0, 0),
1180         SND_SOC_DAPM_DAC("DAC Left1", NULL, SND_SOC_NOPM, 0, 0),
1181         SND_SOC_DAPM_DAC("DAC Right2", NULL, SND_SOC_NOPM, 0, 0),
1182         SND_SOC_DAPM_DAC("DAC Left2", NULL, SND_SOC_NOPM, 0, 0),
1183         SND_SOC_DAPM_DAC("DAC Voice", NULL, SND_SOC_NOPM, 0, 0),
1184 
1185         SND_SOC_DAPM_AIF_IN("VAIFIN", "Voice Playback", 0,
1186                             TWL4030_REG_VOICE_IF, 6, 0),
1187 
1188         /* Analog bypasses */
1189         SND_SOC_DAPM_SWITCH("Right1 Analog Loopback", SND_SOC_NOPM, 0, 0,
1190                         &twl4030_dapm_abypassr1_control),
1191         SND_SOC_DAPM_SWITCH("Left1 Analog Loopback", SND_SOC_NOPM, 0, 0,
1192                         &twl4030_dapm_abypassl1_control),
1193         SND_SOC_DAPM_SWITCH("Right2 Analog Loopback", SND_SOC_NOPM, 0, 0,
1194                         &twl4030_dapm_abypassr2_control),
1195         SND_SOC_DAPM_SWITCH("Left2 Analog Loopback", SND_SOC_NOPM, 0, 0,
1196                         &twl4030_dapm_abypassl2_control),
1197         SND_SOC_DAPM_SWITCH("Voice Analog Loopback", SND_SOC_NOPM, 0, 0,
1198                         &twl4030_dapm_abypassv_control),
1199 
1200         /* Master analog loopback switch */
1201         SND_SOC_DAPM_SUPPLY("FM Loop Enable", TWL4030_REG_MISC_SET_1, 5, 0,
1202                             NULL, 0),
1203 
1204         /* Digital bypasses */
1205         SND_SOC_DAPM_SWITCH("Left Digital Loopback", SND_SOC_NOPM, 0, 0,
1206                         &twl4030_dapm_dbypassl_control),
1207         SND_SOC_DAPM_SWITCH("Right Digital Loopback", SND_SOC_NOPM, 0, 0,
1208                         &twl4030_dapm_dbypassr_control),
1209         SND_SOC_DAPM_SWITCH("Voice Digital Loopback", SND_SOC_NOPM, 0, 0,
1210                         &twl4030_dapm_dbypassv_control),
1211 
1212         /* Digital mixers, power control for the physical DACs */
1213         SND_SOC_DAPM_MIXER("Digital R1 Playback Mixer",
1214                         TWL4030_REG_AVDAC_CTL, 0, 0, NULL, 0),
1215         SND_SOC_DAPM_MIXER("Digital L1 Playback Mixer",
1216                         TWL4030_REG_AVDAC_CTL, 1, 0, NULL, 0),
1217         SND_SOC_DAPM_MIXER("Digital R2 Playback Mixer",
1218                         TWL4030_REG_AVDAC_CTL, 2, 0, NULL, 0),
1219         SND_SOC_DAPM_MIXER("Digital L2 Playback Mixer",
1220                         TWL4030_REG_AVDAC_CTL, 3, 0, NULL, 0),
1221         SND_SOC_DAPM_MIXER("Digital Voice Playback Mixer",
1222                         TWL4030_REG_AVDAC_CTL, 4, 0, NULL, 0),
1223 
1224         /* Analog mixers, power control for the physical PGAs */
1225         SND_SOC_DAPM_MIXER("Analog R1 Playback Mixer",
1226                         TWL4030_REG_ARXR1_APGA_CTL, 0, 0, NULL, 0),
1227         SND_SOC_DAPM_MIXER("Analog L1 Playback Mixer",
1228                         TWL4030_REG_ARXL1_APGA_CTL, 0, 0, NULL, 0),
1229         SND_SOC_DAPM_MIXER("Analog R2 Playback Mixer",
1230                         TWL4030_REG_ARXR2_APGA_CTL, 0, 0, NULL, 0),
1231         SND_SOC_DAPM_MIXER("Analog L2 Playback Mixer",
1232                         TWL4030_REG_ARXL2_APGA_CTL, 0, 0, NULL, 0),
1233         SND_SOC_DAPM_MIXER("Analog Voice Playback Mixer",
1234                         TWL4030_REG_VDL_APGA_CTL, 0, 0, NULL, 0),
1235 
1236         SND_SOC_DAPM_SUPPLY("APLL Enable", SND_SOC_NOPM, 0, 0, apll_event,
1237                             SND_SOC_DAPM_PRE_PMU|SND_SOC_DAPM_POST_PMD),
1238 
1239         SND_SOC_DAPM_SUPPLY("AIF Enable", SND_SOC_NOPM, 0, 0, aif_event,
1240                             SND_SOC_DAPM_PRE_PMU|SND_SOC_DAPM_POST_PMD),
1241 
1242         /* Output MIXER controls */
1243         /* Earpiece */
1244         SND_SOC_DAPM_MIXER("Earpiece Mixer", SND_SOC_NOPM, 0, 0,
1245                         &twl4030_dapm_earpiece_controls[0],
1246                         ARRAY_SIZE(twl4030_dapm_earpiece_controls)),
1247         SND_SOC_DAPM_PGA_E("Earpiece PGA", SND_SOC_NOPM,
1248                         0, 0, NULL, 0, earpiecepga_event,
1249                         SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1250         /* PreDrivL/R */
1251         SND_SOC_DAPM_MIXER("PredriveL Mixer", SND_SOC_NOPM, 0, 0,
1252                         &twl4030_dapm_predrivel_controls[0],
1253                         ARRAY_SIZE(twl4030_dapm_predrivel_controls)),
1254         SND_SOC_DAPM_PGA_E("PredriveL PGA", SND_SOC_NOPM,
1255                         0, 0, NULL, 0, predrivelpga_event,
1256                         SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1257         SND_SOC_DAPM_MIXER("PredriveR Mixer", SND_SOC_NOPM, 0, 0,
1258                         &twl4030_dapm_predriver_controls[0],
1259                         ARRAY_SIZE(twl4030_dapm_predriver_controls)),
1260         SND_SOC_DAPM_PGA_E("PredriveR PGA", SND_SOC_NOPM,
1261                         0, 0, NULL, 0, predriverpga_event,
1262                         SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1263         /* HeadsetL/R */
1264         SND_SOC_DAPM_MIXER("HeadsetL Mixer", SND_SOC_NOPM, 0, 0,
1265                         &twl4030_dapm_hsol_controls[0],
1266                         ARRAY_SIZE(twl4030_dapm_hsol_controls)),
1267         SND_SOC_DAPM_PGA_E("HeadsetL PGA", SND_SOC_NOPM,
1268                         0, 0, NULL, 0, headsetlpga_event,
1269                         SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1270         SND_SOC_DAPM_MIXER("HeadsetR Mixer", SND_SOC_NOPM, 0, 0,
1271                         &twl4030_dapm_hsor_controls[0],
1272                         ARRAY_SIZE(twl4030_dapm_hsor_controls)),
1273         SND_SOC_DAPM_PGA_E("HeadsetR PGA", SND_SOC_NOPM,
1274                         0, 0, NULL, 0, headsetrpga_event,
1275                         SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1276         /* CarkitL/R */
1277         SND_SOC_DAPM_MIXER("CarkitL Mixer", SND_SOC_NOPM, 0, 0,
1278                         &twl4030_dapm_carkitl_controls[0],
1279                         ARRAY_SIZE(twl4030_dapm_carkitl_controls)),
1280         SND_SOC_DAPM_PGA_E("CarkitL PGA", SND_SOC_NOPM,
1281                         0, 0, NULL, 0, carkitlpga_event,
1282                         SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1283         SND_SOC_DAPM_MIXER("CarkitR Mixer", SND_SOC_NOPM, 0, 0,
1284                         &twl4030_dapm_carkitr_controls[0],
1285                         ARRAY_SIZE(twl4030_dapm_carkitr_controls)),
1286         SND_SOC_DAPM_PGA_E("CarkitR PGA", SND_SOC_NOPM,
1287                         0, 0, NULL, 0, carkitrpga_event,
1288                         SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1289 
1290         /* Output MUX controls */
1291         /* HandsfreeL/R */
1292         SND_SOC_DAPM_MUX("HandsfreeL Mux", SND_SOC_NOPM, 0, 0,
1293                 &twl4030_dapm_handsfreel_control),
1294         SND_SOC_DAPM_SWITCH("HandsfreeL", SND_SOC_NOPM, 0, 0,
1295                         &twl4030_dapm_handsfreelmute_control),
1296         SND_SOC_DAPM_PGA_E("HandsfreeL PGA", SND_SOC_NOPM,
1297                         0, 0, NULL, 0, handsfreelpga_event,
1298                         SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1299         SND_SOC_DAPM_MUX("HandsfreeR Mux", SND_SOC_NOPM, 5, 0,
1300                 &twl4030_dapm_handsfreer_control),
1301         SND_SOC_DAPM_SWITCH("HandsfreeR", SND_SOC_NOPM, 0, 0,
1302                         &twl4030_dapm_handsfreermute_control),
1303         SND_SOC_DAPM_PGA_E("HandsfreeR PGA", SND_SOC_NOPM,
1304                         0, 0, NULL, 0, handsfreerpga_event,
1305                         SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1306         /* Vibra */
1307         SND_SOC_DAPM_MUX_E("Vibra Mux", TWL4030_REG_VIBRA_CTL, 0, 0,
1308                            &twl4030_dapm_vibra_control, vibramux_event,
1309                            SND_SOC_DAPM_PRE_PMU),
1310         SND_SOC_DAPM_MUX("Vibra Route", SND_SOC_NOPM, 0, 0,
1311                 &twl4030_dapm_vibrapath_control),
1312 
1313         /* Introducing four virtual ADC, since TWL4030 have four channel for
1314            capture */
1315         SND_SOC_DAPM_ADC("ADC Virtual Left1", NULL, SND_SOC_NOPM, 0, 0),
1316         SND_SOC_DAPM_ADC("ADC Virtual Right1", NULL, SND_SOC_NOPM, 0, 0),
1317         SND_SOC_DAPM_ADC("ADC Virtual Left2", NULL, SND_SOC_NOPM, 0, 0),
1318         SND_SOC_DAPM_ADC("ADC Virtual Right2", NULL, SND_SOC_NOPM, 0, 0),
1319 
1320         SND_SOC_DAPM_AIF_OUT("VAIFOUT", "Voice Capture", 0,
1321                              TWL4030_REG_VOICE_IF, 5, 0),
1322 
1323         /* Analog/Digital mic path selection.
1324            TX1 Left/Right: either analog Left/Right or Digimic0
1325            TX2 Left/Right: either analog Left/Right or Digimic1 */
1326         SND_SOC_DAPM_MUX("TX1 Capture Route", SND_SOC_NOPM, 0, 0,
1327                 &twl4030_dapm_micpathtx1_control),
1328         SND_SOC_DAPM_MUX("TX2 Capture Route", SND_SOC_NOPM, 0, 0,
1329                 &twl4030_dapm_micpathtx2_control),
1330 
1331         /* Analog input mixers for the capture amplifiers */
1332         SND_SOC_DAPM_MIXER("Analog Left",
1333                 TWL4030_REG_ANAMICL, 4, 0,
1334                 &twl4030_dapm_analoglmic_controls[0],
1335                 ARRAY_SIZE(twl4030_dapm_analoglmic_controls)),
1336         SND_SOC_DAPM_MIXER("Analog Right",
1337                 TWL4030_REG_ANAMICR, 4, 0,
1338                 &twl4030_dapm_analogrmic_controls[0],
1339                 ARRAY_SIZE(twl4030_dapm_analogrmic_controls)),
1340 
1341         SND_SOC_DAPM_PGA("ADC Physical Left",
1342                 TWL4030_REG_AVADC_CTL, 3, 0, NULL, 0),
1343         SND_SOC_DAPM_PGA("ADC Physical Right",
1344                 TWL4030_REG_AVADC_CTL, 1, 0, NULL, 0),
1345 
1346         SND_SOC_DAPM_PGA_E("Digimic0 Enable",
1347                 TWL4030_REG_ADCMICSEL, 1, 0, NULL, 0,
1348                 digimic_event, SND_SOC_DAPM_POST_PMU),
1349         SND_SOC_DAPM_PGA_E("Digimic1 Enable",
1350                 TWL4030_REG_ADCMICSEL, 3, 0, NULL, 0,
1351                 digimic_event, SND_SOC_DAPM_POST_PMU),
1352 
1353         SND_SOC_DAPM_SUPPLY("micbias1 select", TWL4030_REG_MICBIAS_CTL, 5, 0,
1354                             NULL, 0),
1355         SND_SOC_DAPM_SUPPLY("micbias2 select", TWL4030_REG_MICBIAS_CTL, 6, 0,
1356                             NULL, 0),
1357 
1358         /* Microphone bias */
1359         SND_SOC_DAPM_SUPPLY("Mic Bias 1",
1360                             TWL4030_REG_MICBIAS_CTL, 0, 0, NULL, 0),
1361         SND_SOC_DAPM_SUPPLY("Mic Bias 2",
1362                             TWL4030_REG_MICBIAS_CTL, 1, 0, NULL, 0),
1363         SND_SOC_DAPM_SUPPLY("Headset Mic Bias",
1364                             TWL4030_REG_MICBIAS_CTL, 2, 0, NULL, 0),
1365 
1366         SND_SOC_DAPM_SUPPLY("VIF Enable", TWL4030_REG_VOICE_IF, 0, 0, NULL, 0),
1367 };
1368 
1369 static const struct snd_soc_dapm_route intercon[] = {
1370         /* Stream -> DAC mapping */
1371         {"DAC Right1", NULL, "HiFi Playback"},
1372         {"DAC Left1", NULL, "HiFi Playback"},
1373         {"DAC Right2", NULL, "HiFi Playback"},
1374         {"DAC Left2", NULL, "HiFi Playback"},
1375         {"DAC Voice", NULL, "VAIFIN"},
1376 
1377         /* ADC -> Stream mapping */
1378         {"HiFi Capture", NULL, "ADC Virtual Left1"},
1379         {"HiFi Capture", NULL, "ADC Virtual Right1"},
1380         {"HiFi Capture", NULL, "ADC Virtual Left2"},
1381         {"HiFi Capture", NULL, "ADC Virtual Right2"},
1382         {"VAIFOUT", NULL, "ADC Virtual Left2"},
1383         {"VAIFOUT", NULL, "ADC Virtual Right2"},
1384         {"VAIFOUT", NULL, "VIF Enable"},
1385 
1386         {"Digital L1 Playback Mixer", NULL, "DAC Left1"},
1387         {"Digital R1 Playback Mixer", NULL, "DAC Right1"},
1388         {"Digital L2 Playback Mixer", NULL, "DAC Left2"},
1389         {"Digital R2 Playback Mixer", NULL, "DAC Right2"},
1390         {"Digital Voice Playback Mixer", NULL, "DAC Voice"},
1391 
1392         /* Supply for the digital part (APLL) */
1393         {"Digital Voice Playback Mixer", NULL, "APLL Enable"},
1394 
1395         {"DAC Left1", NULL, "AIF Enable"},
1396         {"DAC Right1", NULL, "AIF Enable"},
1397         {"DAC Left2", NULL, "AIF Enable"},
1398         {"DAC Right1", NULL, "AIF Enable"},
1399         {"DAC Voice", NULL, "VIF Enable"},
1400 
1401         {"Digital R2 Playback Mixer", NULL, "AIF Enable"},
1402         {"Digital L2 Playback Mixer", NULL, "AIF Enable"},
1403 
1404         {"Analog L1 Playback Mixer", NULL, "Digital L1 Playback Mixer"},
1405         {"Analog R1 Playback Mixer", NULL, "Digital R1 Playback Mixer"},
1406         {"Analog L2 Playback Mixer", NULL, "Digital L2 Playback Mixer"},
1407         {"Analog R2 Playback Mixer", NULL, "Digital R2 Playback Mixer"},
1408         {"Analog Voice Playback Mixer", NULL, "Digital Voice Playback Mixer"},
1409 
1410         /* Internal playback routings */
1411         /* Earpiece */
1412         {"Earpiece Mixer", "Voice", "Analog Voice Playback Mixer"},
1413         {"Earpiece Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1414         {"Earpiece Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1415         {"Earpiece Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1416         {"Earpiece PGA", NULL, "Earpiece Mixer"},
1417         /* PreDrivL */
1418         {"PredriveL Mixer", "Voice", "Analog Voice Playback Mixer"},
1419         {"PredriveL Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1420         {"PredriveL Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1421         {"PredriveL Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1422         {"PredriveL PGA", NULL, "PredriveL Mixer"},
1423         /* PreDrivR */
1424         {"PredriveR Mixer", "Voice", "Analog Voice Playback Mixer"},
1425         {"PredriveR Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1426         {"PredriveR Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1427         {"PredriveR Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1428         {"PredriveR PGA", NULL, "PredriveR Mixer"},
1429         /* HeadsetL */
1430         {"HeadsetL Mixer", "Voice", "Analog Voice Playback Mixer"},
1431         {"HeadsetL Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1432         {"HeadsetL Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1433         {"HeadsetL PGA", NULL, "HeadsetL Mixer"},
1434         /* HeadsetR */
1435         {"HeadsetR Mixer", "Voice", "Analog Voice Playback Mixer"},
1436         {"HeadsetR Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1437         {"HeadsetR Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1438         {"HeadsetR PGA", NULL, "HeadsetR Mixer"},
1439         /* CarkitL */
1440         {"CarkitL Mixer", "Voice", "Analog Voice Playback Mixer"},
1441         {"CarkitL Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1442         {"CarkitL Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1443         {"CarkitL PGA", NULL, "CarkitL Mixer"},
1444         /* CarkitR */
1445         {"CarkitR Mixer", "Voice", "Analog Voice Playback Mixer"},
1446         {"CarkitR Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1447         {"CarkitR Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1448         {"CarkitR PGA", NULL, "CarkitR Mixer"},
1449         /* HandsfreeL */
1450         {"HandsfreeL Mux", "Voice", "Analog Voice Playback Mixer"},
1451         {"HandsfreeL Mux", "AudioL1", "Analog L1 Playback Mixer"},
1452         {"HandsfreeL Mux", "AudioL2", "Analog L2 Playback Mixer"},
1453         {"HandsfreeL Mux", "AudioR2", "Analog R2 Playback Mixer"},
1454         {"HandsfreeL", "Switch", "HandsfreeL Mux"},
1455         {"HandsfreeL PGA", NULL, "HandsfreeL"},
1456         /* HandsfreeR */
1457         {"HandsfreeR Mux", "Voice", "Analog Voice Playback Mixer"},
1458         {"HandsfreeR Mux", "AudioR1", "Analog R1 Playback Mixer"},
1459         {"HandsfreeR Mux", "AudioR2", "Analog R2 Playback Mixer"},
1460         {"HandsfreeR Mux", "AudioL2", "Analog L2 Playback Mixer"},
1461         {"HandsfreeR", "Switch", "HandsfreeR Mux"},
1462         {"HandsfreeR PGA", NULL, "HandsfreeR"},
1463         /* Vibra */
1464         {"Vibra Mux", "AudioL1", "DAC Left1"},
1465         {"Vibra Mux", "AudioR1", "DAC Right1"},
1466         {"Vibra Mux", "AudioL2", "DAC Left2"},
1467         {"Vibra Mux", "AudioR2", "DAC Right2"},
1468 
1469         /* outputs */
1470         /* Must be always connected (for AIF and APLL) */
1471         {"Virtual HiFi OUT", NULL, "DAC Left1"},
1472         {"Virtual HiFi OUT", NULL, "DAC Right1"},
1473         {"Virtual HiFi OUT", NULL, "DAC Left2"},
1474         {"Virtual HiFi OUT", NULL, "DAC Right2"},
1475         /* Must be always connected (for APLL) */
1476         {"Virtual Voice OUT", NULL, "Digital Voice Playback Mixer"},
1477         /* Physical outputs */
1478         {"EARPIECE", NULL, "Earpiece PGA"},
1479         {"PREDRIVEL", NULL, "PredriveL PGA"},
1480         {"PREDRIVER", NULL, "PredriveR PGA"},
1481         {"HSOL", NULL, "HeadsetL PGA"},
1482         {"HSOR", NULL, "HeadsetR PGA"},
1483         {"CARKITL", NULL, "CarkitL PGA"},
1484         {"CARKITR", NULL, "CarkitR PGA"},
1485         {"HFL", NULL, "HandsfreeL PGA"},
1486         {"HFR", NULL, "HandsfreeR PGA"},
1487         {"Vibra Route", "Audio", "Vibra Mux"},
1488         {"VIBRA", NULL, "Vibra Route"},
1489 
1490         /* Capture path */
1491         /* Must be always connected (for AIF and APLL) */
1492         {"ADC Virtual Left1", NULL, "Virtual HiFi IN"},
1493         {"ADC Virtual Right1", NULL, "Virtual HiFi IN"},
1494         {"ADC Virtual Left2", NULL, "Virtual HiFi IN"},
1495         {"ADC Virtual Right2", NULL, "Virtual HiFi IN"},
1496         /* Physical inputs */
1497         {"Analog Left", "Main Mic Capture Switch", "MAINMIC"},
1498         {"Analog Left", "Headset Mic Capture Switch", "HSMIC"},
1499         {"Analog Left", "AUXL Capture Switch", "AUXL"},
1500         {"Analog Left", "Carkit Mic Capture Switch", "CARKITMIC"},
1501 
1502         {"Analog Right", "Sub Mic Capture Switch", "SUBMIC"},
1503         {"Analog Right", "AUXR Capture Switch", "AUXR"},
1504 
1505         {"ADC Physical Left", NULL, "Analog Left"},
1506         {"ADC Physical Right", NULL, "Analog Right"},
1507 
1508         {"Digimic0 Enable", NULL, "DIGIMIC0"},
1509         {"Digimic1 Enable", NULL, "DIGIMIC1"},
1510 
1511         {"DIGIMIC0", NULL, "micbias1 select"},
1512         {"DIGIMIC1", NULL, "micbias2 select"},
1513 
1514         /* TX1 Left capture path */
1515         {"TX1 Capture Route", "Analog", "ADC Physical Left"},
1516         {"TX1 Capture Route", "Digimic0", "Digimic0 Enable"},
1517         /* TX1 Right capture path */
1518         {"TX1 Capture Route", "Analog", "ADC Physical Right"},
1519         {"TX1 Capture Route", "Digimic0", "Digimic0 Enable"},
1520         /* TX2 Left capture path */
1521         {"TX2 Capture Route", "Analog", "ADC Physical Left"},
1522         {"TX2 Capture Route", "Digimic1", "Digimic1 Enable"},
1523         /* TX2 Right capture path */
1524         {"TX2 Capture Route", "Analog", "ADC Physical Right"},
1525         {"TX2 Capture Route", "Digimic1", "Digimic1 Enable"},
1526 
1527         {"ADC Virtual Left1", NULL, "TX1 Capture Route"},
1528         {"ADC Virtual Right1", NULL, "TX1 Capture Route"},
1529         {"ADC Virtual Left2", NULL, "TX2 Capture Route"},
1530         {"ADC Virtual Right2", NULL, "TX2 Capture Route"},
1531 
1532         {"ADC Virtual Left1", NULL, "AIF Enable"},
1533         {"ADC Virtual Right1", NULL, "AIF Enable"},
1534         {"ADC Virtual Left2", NULL, "AIF Enable"},
1535         {"ADC Virtual Right2", NULL, "AIF Enable"},
1536 
1537         /* Analog bypass routes */
1538         {"Right1 Analog Loopback", "Switch", "Analog Right"},
1539         {"Left1 Analog Loopback", "Switch", "Analog Left"},
1540         {"Right2 Analog Loopback", "Switch", "Analog Right"},
1541         {"Left2 Analog Loopback", "Switch", "Analog Left"},
1542         {"Voice Analog Loopback", "Switch", "Analog Left"},
1543 
1544         /* Supply for the Analog loopbacks */
1545         {"Right1 Analog Loopback", NULL, "FM Loop Enable"},
1546         {"Left1 Analog Loopback", NULL, "FM Loop Enable"},
1547         {"Right2 Analog Loopback", NULL, "FM Loop Enable"},
1548         {"Left2 Analog Loopback", NULL, "FM Loop Enable"},
1549         {"Voice Analog Loopback", NULL, "FM Loop Enable"},
1550 
1551         {"Analog R1 Playback Mixer", NULL, "Right1 Analog Loopback"},
1552         {"Analog L1 Playback Mixer", NULL, "Left1 Analog Loopback"},
1553         {"Analog R2 Playback Mixer", NULL, "Right2 Analog Loopback"},
1554         {"Analog L2 Playback Mixer", NULL, "Left2 Analog Loopback"},
1555         {"Analog Voice Playback Mixer", NULL, "Voice Analog Loopback"},
1556 
1557         /* Digital bypass routes */
1558         {"Right Digital Loopback", "Volume", "TX1 Capture Route"},
1559         {"Left Digital Loopback", "Volume", "TX1 Capture Route"},
1560         {"Voice Digital Loopback", "Volume", "TX2 Capture Route"},
1561 
1562         {"Digital R2 Playback Mixer", NULL, "Right Digital Loopback"},
1563         {"Digital L2 Playback Mixer", NULL, "Left Digital Loopback"},
1564         {"Digital Voice Playback Mixer", NULL, "Voice Digital Loopback"},
1565 
1566 };
1567 
1568 static int twl4030_set_bias_level(struct snd_soc_component *component,
1569                                   enum snd_soc_bias_level level)
1570 {
1571         switch (level) {
1572         case SND_SOC_BIAS_ON:
1573                 break;
1574         case SND_SOC_BIAS_PREPARE:
1575                 break;
1576         case SND_SOC_BIAS_STANDBY:
1577                 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF)
1578                         twl4030_codec_enable(component, 1);
1579                 break;
1580         case SND_SOC_BIAS_OFF:
1581                 twl4030_codec_enable(component, 0);
1582                 break;
1583         }
1584 
1585         return 0;
1586 }
1587 
1588 static void twl4030_constraints(struct twl4030_priv *twl4030,
1589                                 struct snd_pcm_substream *mst_substream)
1590 {
1591         struct snd_pcm_substream *slv_substream;
1592 
1593         /* Pick the stream, which need to be constrained */
1594         if (mst_substream == twl4030->master_substream)
1595                 slv_substream = twl4030->slave_substream;
1596         else if (mst_substream == twl4030->slave_substream)
1597                 slv_substream = twl4030->master_substream;
1598         else /* This should not happen.. */
1599                 return;
1600 
1601         /* Set the constraints according to the already configured stream */
1602         snd_pcm_hw_constraint_single(slv_substream->runtime,
1603                                 SNDRV_PCM_HW_PARAM_RATE,
1604                                 twl4030->rate);
1605 
1606         snd_pcm_hw_constraint_single(slv_substream->runtime,
1607                                 SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
1608                                 twl4030->sample_bits);
1609 
1610         snd_pcm_hw_constraint_single(slv_substream->runtime,
1611                                 SNDRV_PCM_HW_PARAM_CHANNELS,
1612                                 twl4030->channels);
1613 }
1614 
1615 /* In case of 4 channel mode, the RX1 L/R for playback and the TX2 L/R for
1616  * capture has to be enabled/disabled. */
1617 static void twl4030_tdm_enable(struct snd_soc_component *component, int direction,
1618                                int enable)
1619 {
1620         u8 reg, mask;
1621 
1622         reg = twl4030_read(component, TWL4030_REG_OPTION);
1623 
1624         if (direction == SNDRV_PCM_STREAM_PLAYBACK)
1625                 mask = TWL4030_ARXL1_VRX_EN | TWL4030_ARXR1_EN;
1626         else
1627                 mask = TWL4030_ATXL2_VTXL_EN | TWL4030_ATXR2_VTXR_EN;
1628 
1629         if (enable)
1630                 reg |= mask;
1631         else
1632                 reg &= ~mask;
1633 
1634         twl4030_write(component, TWL4030_REG_OPTION, reg);
1635 }
1636 
1637 static int twl4030_startup(struct snd_pcm_substream *substream,
1638                            struct snd_soc_dai *dai)
1639 {
1640         struct snd_soc_component *component = dai->component;
1641         struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
1642 
1643         if (twl4030->master_substream) {
1644                 twl4030->slave_substream = substream;
1645                 /* The DAI has one configuration for playback and capture, so
1646                  * if the DAI has been already configured then constrain this
1647                  * substream to match it. */
1648                 if (twl4030->configured)
1649                         twl4030_constraints(twl4030, twl4030->master_substream);
1650         } else {
1651                 if (!(twl4030_read(component, TWL4030_REG_CODEC_MODE) &
1652                         TWL4030_OPTION_1)) {
1653                         /* In option2 4 channel is not supported, set the
1654                          * constraint for the first stream for channels, the
1655                          * second stream will 'inherit' this cosntraint */
1656                         snd_pcm_hw_constraint_single(substream->runtime,
1657                                                      SNDRV_PCM_HW_PARAM_CHANNELS,
1658                                                      2);
1659                 }
1660                 twl4030->master_substream = substream;
1661         }
1662 
1663         return 0;
1664 }
1665 
1666 static void twl4030_shutdown(struct snd_pcm_substream *substream,
1667                              struct snd_soc_dai *dai)
1668 {
1669         struct snd_soc_component *component = dai->component;
1670         struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
1671 
1672         if (twl4030->master_substream == substream)
1673                 twl4030->master_substream = twl4030->slave_substream;
1674 
1675         twl4030->slave_substream = NULL;
1676 
1677         /* If all streams are closed, or the remaining stream has not yet
1678          * been configured than set the DAI as not configured. */
1679         if (!twl4030->master_substream)
1680                 twl4030->configured = 0;
1681          else if (!twl4030->master_substream->runtime->channels)
1682                 twl4030->configured = 0;
1683 
1684          /* If the closing substream had 4 channel, do the necessary cleanup */
1685         if (substream->runtime->channels == 4)
1686                 twl4030_tdm_enable(component, substream->stream, 0);
1687 }
1688 
1689 static int twl4030_hw_params(struct snd_pcm_substream *substream,
1690                              struct snd_pcm_hw_params *params,
1691                              struct snd_soc_dai *dai)
1692 {
1693         struct snd_soc_component *component = dai->component;
1694         struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
1695         u8 mode, old_mode, format, old_format;
1696 
1697          /* If the substream has 4 channel, do the necessary setup */
1698         if (params_channels(params) == 4) {
1699                 format = twl4030_read(component, TWL4030_REG_AUDIO_IF);
1700                 mode = twl4030_read(component, TWL4030_REG_CODEC_MODE);
1701 
1702                 /* Safety check: are we in the correct operating mode and
1703                  * the interface is in TDM mode? */
1704                 if ((mode & TWL4030_OPTION_1) &&
1705                     ((format & TWL4030_AIF_FORMAT) == TWL4030_AIF_FORMAT_TDM))
1706                         twl4030_tdm_enable(component, substream->stream, 1);
1707                 else
1708                         return -EINVAL;
1709         }
1710 
1711         if (twl4030->configured)
1712                 /* Ignoring hw_params for already configured DAI */
1713                 return 0;
1714 
1715         /* bit rate */
1716         old_mode = twl4030_read(component,
1717                                 TWL4030_REG_CODEC_MODE) & ~TWL4030_CODECPDZ;
1718         mode = old_mode & ~TWL4030_APLL_RATE;
1719 
1720         switch (params_rate(params)) {
1721         case 8000:
1722                 mode |= TWL4030_APLL_RATE_8000;
1723                 break;
1724         case 11025:
1725                 mode |= TWL4030_APLL_RATE_11025;
1726                 break;
1727         case 12000:
1728                 mode |= TWL4030_APLL_RATE_12000;
1729                 break;
1730         case 16000:
1731                 mode |= TWL4030_APLL_RATE_16000;
1732                 break;
1733         case 22050:
1734                 mode |= TWL4030_APLL_RATE_22050;
1735                 break;
1736         case 24000:
1737                 mode |= TWL4030_APLL_RATE_24000;
1738                 break;
1739         case 32000:
1740                 mode |= TWL4030_APLL_RATE_32000;
1741                 break;
1742         case 44100:
1743                 mode |= TWL4030_APLL_RATE_44100;
1744                 break;
1745         case 48000:
1746                 mode |= TWL4030_APLL_RATE_48000;
1747                 break;
1748         case 96000:
1749                 mode |= TWL4030_APLL_RATE_96000;
1750                 break;
1751         default:
1752                 dev_err(component->dev, "%s: unknown rate %d\n", __func__,
1753                         params_rate(params));
1754                 return -EINVAL;
1755         }
1756 
1757         /* sample size */
1758         old_format = twl4030_read(component, TWL4030_REG_AUDIO_IF);
1759         format = old_format;
1760         format &= ~TWL4030_DATA_WIDTH;
1761         switch (params_width(params)) {
1762         case 16:
1763                 format |= TWL4030_DATA_WIDTH_16S_16W;
1764                 break;
1765         case 32:
1766                 format |= TWL4030_DATA_WIDTH_32S_24W;
1767                 break;
1768         default:
1769                 dev_err(component->dev, "%s: unsupported bits/sample %d\n",
1770                         __func__, params_width(params));
1771                 return -EINVAL;
1772         }
1773 
1774         if (format != old_format || mode != old_mode) {
1775                 if (twl4030->codec_powered) {
1776                         /*
1777                          * If the codec is powered, than we need to toggle the
1778                          * codec power.
1779                          */
1780                         twl4030_codec_enable(component, 0);
1781                         twl4030_write(component, TWL4030_REG_CODEC_MODE, mode);
1782                         twl4030_write(component, TWL4030_REG_AUDIO_IF, format);
1783                         twl4030_codec_enable(component, 1);
1784                 } else {
1785                         twl4030_write(component, TWL4030_REG_CODEC_MODE, mode);
1786                         twl4030_write(component, TWL4030_REG_AUDIO_IF, format);
1787                 }
1788         }
1789 
1790         /* Store the important parameters for the DAI configuration and set
1791          * the DAI as configured */
1792         twl4030->configured = 1;
1793         twl4030->rate = params_rate(params);
1794         twl4030->sample_bits = hw_param_interval(params,
1795                                         SNDRV_PCM_HW_PARAM_SAMPLE_BITS)->min;
1796         twl4030->channels = params_channels(params);
1797 
1798         /* If both playback and capture streams are open, and one of them
1799          * is setting the hw parameters right now (since we are here), set
1800          * constraints to the other stream to match the current one. */
1801         if (twl4030->slave_substream)
1802                 twl4030_constraints(twl4030, substream);
1803 
1804         return 0;
1805 }
1806 
1807 static int twl4030_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id,
1808                                   unsigned int freq, int dir)
1809 {
1810         struct snd_soc_component *component = codec_dai->component;
1811         struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
1812 
1813         switch (freq) {
1814         case 19200000:
1815         case 26000000:
1816         case 38400000:
1817                 break;
1818         default:
1819                 dev_err(component->dev, "Unsupported HFCLKIN: %u\n", freq);
1820                 return -EINVAL;
1821         }
1822 
1823         if ((freq / 1000) != twl4030->sysclk) {
1824                 dev_err(component->dev,
1825                         "Mismatch in HFCLKIN: %u (configured: %u)\n",
1826                         freq, twl4030->sysclk * 1000);
1827                 return -EINVAL;
1828         }
1829 
1830         return 0;
1831 }
1832 
1833 static int twl4030_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
1834 {
1835         struct snd_soc_component *component = codec_dai->component;
1836         struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
1837         u8 old_format, format;
1838 
1839         /* get format */
1840         old_format = twl4030_read(component, TWL4030_REG_AUDIO_IF);
1841         format = old_format;
1842 
1843         /* set master/slave audio interface */
1844         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1845         case SND_SOC_DAIFMT_CBM_CFM:
1846                 format &= ~(TWL4030_AIF_SLAVE_EN);
1847                 format &= ~(TWL4030_CLK256FS_EN);
1848                 break;
1849         case SND_SOC_DAIFMT_CBS_CFS:
1850                 format |= TWL4030_AIF_SLAVE_EN;
1851                 format |= TWL4030_CLK256FS_EN;
1852                 break;
1853         default:
1854                 return -EINVAL;
1855         }
1856 
1857         /* interface format */
1858         format &= ~TWL4030_AIF_FORMAT;
1859         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1860         case SND_SOC_DAIFMT_I2S:
1861                 format |= TWL4030_AIF_FORMAT_CODEC;
1862                 break;
1863         case SND_SOC_DAIFMT_DSP_A:
1864                 format |= TWL4030_AIF_FORMAT_TDM;
1865                 break;
1866         default:
1867                 return -EINVAL;
1868         }
1869 
1870         if (format != old_format) {
1871                 if (twl4030->codec_powered) {
1872                         /*
1873                          * If the codec is powered, than we need to toggle the
1874                          * codec power.
1875                          */
1876                         twl4030_codec_enable(component, 0);
1877                         twl4030_write(component, TWL4030_REG_AUDIO_IF, format);
1878                         twl4030_codec_enable(component, 1);
1879                 } else {
1880                         twl4030_write(component, TWL4030_REG_AUDIO_IF, format);
1881                 }
1882         }
1883 
1884         return 0;
1885 }
1886 
1887 static int twl4030_set_tristate(struct snd_soc_dai *dai, int tristate)
1888 {
1889         struct snd_soc_component *component = dai->component;
1890         u8 reg = twl4030_read(component, TWL4030_REG_AUDIO_IF);
1891 
1892         if (tristate)
1893                 reg |= TWL4030_AIF_TRI_EN;
1894         else
1895                 reg &= ~TWL4030_AIF_TRI_EN;
1896 
1897         return twl4030_write(component, TWL4030_REG_AUDIO_IF, reg);
1898 }
1899 
1900 /* In case of voice mode, the RX1 L(VRX) for downlink and the TX2 L/R
1901  * (VTXL, VTXR) for uplink has to be enabled/disabled. */
1902 static void twl4030_voice_enable(struct snd_soc_component *component, int direction,
1903                                  int enable)
1904 {
1905         u8 reg, mask;
1906 
1907         reg = twl4030_read(component, TWL4030_REG_OPTION);
1908 
1909         if (direction == SNDRV_PCM_STREAM_PLAYBACK)
1910                 mask = TWL4030_ARXL1_VRX_EN;
1911         else
1912                 mask = TWL4030_ATXL2_VTXL_EN | TWL4030_ATXR2_VTXR_EN;
1913 
1914         if (enable)
1915                 reg |= mask;
1916         else
1917                 reg &= ~mask;
1918 
1919         twl4030_write(component, TWL4030_REG_OPTION, reg);
1920 }
1921 
1922 static int twl4030_voice_startup(struct snd_pcm_substream *substream,
1923                                  struct snd_soc_dai *dai)
1924 {
1925         struct snd_soc_component *component = dai->component;
1926         struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
1927         u8 mode;
1928 
1929         /* If the system master clock is not 26MHz, the voice PCM interface is
1930          * not available.
1931          */
1932         if (twl4030->sysclk != 26000) {
1933                 dev_err(component->dev,
1934                         "%s: HFCLKIN is %u KHz, voice interface needs 26MHz\n",
1935                         __func__, twl4030->sysclk);
1936                 return -EINVAL;
1937         }
1938 
1939         /* If the codec mode is not option2, the voice PCM interface is not
1940          * available.
1941          */
1942         mode = twl4030_read(component, TWL4030_REG_CODEC_MODE)
1943                 & TWL4030_OPT_MODE;
1944 
1945         if (mode != TWL4030_OPTION_2) {
1946                 dev_err(component->dev, "%s: the codec mode is not option2\n",
1947                         __func__);
1948                 return -EINVAL;
1949         }
1950 
1951         return 0;
1952 }
1953 
1954 static void twl4030_voice_shutdown(struct snd_pcm_substream *substream,
1955                                    struct snd_soc_dai *dai)
1956 {
1957         struct snd_soc_component *component = dai->component;
1958 
1959         /* Enable voice digital filters */
1960         twl4030_voice_enable(component, substream->stream, 0);
1961 }
1962 
1963 static int twl4030_voice_hw_params(struct snd_pcm_substream *substream,
1964                                    struct snd_pcm_hw_params *params,
1965                                    struct snd_soc_dai *dai)
1966 {
1967         struct snd_soc_component *component = dai->component;
1968         struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
1969         u8 old_mode, mode;
1970 
1971         /* Enable voice digital filters */
1972         twl4030_voice_enable(component, substream->stream, 1);
1973 
1974         /* bit rate */
1975         old_mode = twl4030_read(component,
1976                                 TWL4030_REG_CODEC_MODE) & ~TWL4030_CODECPDZ;
1977         mode = old_mode;
1978 
1979         switch (params_rate(params)) {
1980         case 8000:
1981                 mode &= ~(TWL4030_SEL_16K);
1982                 break;
1983         case 16000:
1984                 mode |= TWL4030_SEL_16K;
1985                 break;
1986         default:
1987                 dev_err(component->dev, "%s: unknown rate %d\n", __func__,
1988                         params_rate(params));
1989                 return -EINVAL;
1990         }
1991 
1992         if (mode != old_mode) {
1993                 if (twl4030->codec_powered) {
1994                         /*
1995                          * If the codec is powered, than we need to toggle the
1996                          * codec power.
1997                          */
1998                         twl4030_codec_enable(component, 0);
1999                         twl4030_write(component, TWL4030_REG_CODEC_MODE, mode);
2000                         twl4030_codec_enable(component, 1);
2001                 } else {
2002                         twl4030_write(component, TWL4030_REG_CODEC_MODE, mode);
2003                 }
2004         }
2005 
2006         return 0;
2007 }
2008 
2009 static int twl4030_voice_set_dai_sysclk(struct snd_soc_dai *codec_dai,
2010                                         int clk_id, unsigned int freq, int dir)
2011 {
2012         struct snd_soc_component *component = codec_dai->component;
2013         struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
2014 
2015         if (freq != 26000000) {
2016                 dev_err(component->dev,
2017                         "%s: HFCLKIN is %u KHz, voice interface needs 26MHz\n",
2018                         __func__, freq / 1000);
2019                 return -EINVAL;
2020         }
2021         if ((freq / 1000) != twl4030->sysclk) {
2022                 dev_err(component->dev,
2023                         "Mismatch in HFCLKIN: %u (configured: %u)\n",
2024                         freq, twl4030->sysclk * 1000);
2025                 return -EINVAL;
2026         }
2027         return 0;
2028 }
2029 
2030 static int twl4030_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,
2031                                      unsigned int fmt)
2032 {
2033         struct snd_soc_component *component = codec_dai->component;
2034         struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
2035         u8 old_format, format;
2036 
2037         /* get format */
2038         old_format = twl4030_read(component, TWL4030_REG_VOICE_IF);
2039         format = old_format;
2040 
2041         /* set master/slave audio interface */
2042         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
2043         case SND_SOC_DAIFMT_CBM_CFM:
2044                 format &= ~(TWL4030_VIF_SLAVE_EN);
2045                 break;
2046         case SND_SOC_DAIFMT_CBS_CFS:
2047                 format |= TWL4030_VIF_SLAVE_EN;
2048                 break;
2049         default:
2050                 return -EINVAL;
2051         }
2052 
2053         /* clock inversion */
2054         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
2055         case SND_SOC_DAIFMT_IB_NF:
2056                 format &= ~(TWL4030_VIF_FORMAT);
2057                 break;
2058         case SND_SOC_DAIFMT_NB_IF:
2059                 format |= TWL4030_VIF_FORMAT;
2060                 break;
2061         default:
2062                 return -EINVAL;
2063         }
2064 
2065         if (format != old_format) {
2066                 if (twl4030->codec_powered) {
2067                         /*
2068                          * If the codec is powered, than we need to toggle the
2069                          * codec power.
2070                          */
2071                         twl4030_codec_enable(component, 0);
2072                         twl4030_write(component, TWL4030_REG_VOICE_IF, format);
2073                         twl4030_codec_enable(component, 1);
2074                 } else {
2075                         twl4030_write(component, TWL4030_REG_VOICE_IF, format);
2076                 }
2077         }
2078 
2079         return 0;
2080 }
2081 
2082 static int twl4030_voice_set_tristate(struct snd_soc_dai *dai, int tristate)
2083 {
2084         struct snd_soc_component *component = dai->component;
2085         u8 reg = twl4030_read(component, TWL4030_REG_VOICE_IF);
2086 
2087         if (tristate)
2088                 reg |= TWL4030_VIF_TRI_EN;
2089         else
2090                 reg &= ~TWL4030_VIF_TRI_EN;
2091 
2092         return twl4030_write(component, TWL4030_REG_VOICE_IF, reg);
2093 }
2094 
2095 #define TWL4030_RATES    (SNDRV_PCM_RATE_8000_48000)
2096 #define TWL4030_FORMATS  (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
2097 
2098 static const struct snd_soc_dai_ops twl4030_dai_hifi_ops = {
2099         .startup        = twl4030_startup,
2100         .shutdown       = twl4030_shutdown,
2101         .hw_params      = twl4030_hw_params,
2102         .set_sysclk     = twl4030_set_dai_sysclk,
2103         .set_fmt        = twl4030_set_dai_fmt,
2104         .set_tristate   = twl4030_set_tristate,
2105 };
2106 
2107 static const struct snd_soc_dai_ops twl4030_dai_voice_ops = {
2108         .startup        = twl4030_voice_startup,
2109         .shutdown       = twl4030_voice_shutdown,
2110         .hw_params      = twl4030_voice_hw_params,
2111         .set_sysclk     = twl4030_voice_set_dai_sysclk,
2112         .set_fmt        = twl4030_voice_set_dai_fmt,
2113         .set_tristate   = twl4030_voice_set_tristate,
2114 };
2115 
2116 static struct snd_soc_dai_driver twl4030_dai[] = {
2117 {
2118         .name = "twl4030-hifi",
2119         .playback = {
2120                 .stream_name = "HiFi Playback",
2121                 .channels_min = 2,
2122                 .channels_max = 4,
2123                 .rates = TWL4030_RATES | SNDRV_PCM_RATE_96000,
2124                 .formats = TWL4030_FORMATS,
2125                 .sig_bits = 24,},
2126         .capture = {
2127                 .stream_name = "HiFi Capture",
2128                 .channels_min = 2,
2129                 .channels_max = 4,
2130                 .rates = TWL4030_RATES,
2131                 .formats = TWL4030_FORMATS,
2132                 .sig_bits = 24,},
2133         .ops = &twl4030_dai_hifi_ops,
2134 },
2135 {
2136         .name = "twl4030-voice",
2137         .playback = {
2138                 .stream_name = "Voice Playback",
2139                 .channels_min = 1,
2140                 .channels_max = 1,
2141                 .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
2142                 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
2143         .capture = {
2144                 .stream_name = "Voice Capture",
2145                 .channels_min = 1,
2146                 .channels_max = 2,
2147                 .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
2148                 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
2149         .ops = &twl4030_dai_voice_ops,
2150 },
2151 };
2152 
2153 static int twl4030_soc_probe(struct snd_soc_component *component)
2154 {
2155         struct twl4030_priv *twl4030;
2156 
2157         twl4030 = devm_kzalloc(component->dev, sizeof(struct twl4030_priv),
2158                                GFP_KERNEL);
2159         if (!twl4030)
2160                 return -ENOMEM;
2161         snd_soc_component_set_drvdata(component, twl4030);
2162         /* Set the defaults, and power up the codec */
2163         twl4030->sysclk = twl4030_audio_get_mclk() / 1000;
2164 
2165         twl4030_init_chip(component);
2166 
2167         return 0;
2168 }
2169 
2170 static void twl4030_soc_remove(struct snd_soc_component *component)
2171 {
2172         struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
2173         struct twl4030_codec_data *pdata = twl4030->pdata;
2174 
2175         if (pdata && pdata->hs_extmute && gpio_is_valid(pdata->hs_extmute_gpio))
2176                 gpio_free(pdata->hs_extmute_gpio);
2177 }
2178 
2179 static const struct snd_soc_component_driver soc_component_dev_twl4030 = {
2180         .probe                  = twl4030_soc_probe,
2181         .remove                 = twl4030_soc_remove,
2182         .read                   = twl4030_read,
2183         .write                  = twl4030_write,
2184         .set_bias_level         = twl4030_set_bias_level,
2185         .controls               = twl4030_snd_controls,
2186         .num_controls           = ARRAY_SIZE(twl4030_snd_controls),
2187         .dapm_widgets           = twl4030_dapm_widgets,
2188         .num_dapm_widgets       = ARRAY_SIZE(twl4030_dapm_widgets),
2189         .dapm_routes            = intercon,
2190         .num_dapm_routes        = ARRAY_SIZE(intercon),
2191         .use_pmdown_time        = 1,
2192         .endianness             = 1,
2193         .non_legacy_dai_naming  = 1,
2194 };
2195 
2196 static int twl4030_codec_probe(struct platform_device *pdev)
2197 {
2198         return devm_snd_soc_register_component(&pdev->dev,
2199                                       &soc_component_dev_twl4030,
2200                                       twl4030_dai, ARRAY_SIZE(twl4030_dai));
2201 }
2202 
2203 MODULE_ALIAS("platform:twl4030-codec");
2204 
2205 static struct platform_driver twl4030_codec_driver = {
2206         .probe          = twl4030_codec_probe,
2207         .driver         = {
2208                 .name   = "twl4030-codec",
2209         },
2210 };
2211 
2212 module_platform_driver(twl4030_codec_driver);
2213 
2214 MODULE_DESCRIPTION("ASoC TWL4030 codec driver");
2215 MODULE_AUTHOR("Steve Sakoman");
2216 MODULE_LICENSE("GPL");

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