sound/soc/codecs/twl6040.c

   1 /*
   2  * ALSA SoC TWL6040 codec driver
   3  *
   4  * Author:       Misael Lopez Cruz <x0052729@ti.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * version 2 as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  18  * 02110-1301 USA
  19  *
  20  */
  21
  22 #include <linux/module.h>
  23 #include <linux/moduleparam.h>
  24 #include <linux/init.h>
  25 #include <linux/delay.h>
  26 #include <linux/pm.h>
  27 #include <linux/platform_device.h>
  28 #include <linux/slab.h>
  29 #include <linux/i2c/twl.h>
  30 #include <linux/mfd/twl6040.h>
  31
  32 #include <sound/core.h>
  33 #include <sound/pcm.h>
  34 #include <sound/pcm_params.h>
  35 #include <sound/soc.h>
  36 #include <sound/initval.h>
  37 #include <sound/tlv.h>
  38
  39 #include "twl6040.h"
  40
  41 #define TWL6040_RATES           SNDRV_PCM_RATE_8000_96000
  42 #define TWL6040_FORMATS (SNDRV_PCM_FMTBIT_S32_LE)
  43
  44 #define TWL6040_OUTHS_0dB 0x00
  45 #define TWL6040_OUTHS_M30dB 0x0F
  46 #define TWL6040_OUTHF_0dB 0x03
  47 #define TWL6040_OUTHF_M52dB 0x1D
  48
  49 #define TWL6040_RAMP_NONE       0
  50 #define TWL6040_RAMP_UP         1
  51 #define TWL6040_RAMP_DOWN       2
  52
  53 #define TWL6040_HSL_VOL_MASK    0x0F
  54 #define TWL6040_HSL_VOL_SHIFT   0
  55 #define TWL6040_HSR_VOL_MASK    0xF0
  56 #define TWL6040_HSR_VOL_SHIFT   4
  57 #define TWL6040_HF_VOL_MASK     0x1F
  58 #define TWL6040_HF_VOL_SHIFT    0
  59
  60 /* Shadow register used by the driver */
  61 #define TWL6040_REG_SW_SHADOW   0x2F
  62 #define TWL6040_CACHEREGNUM     (TWL6040_REG_SW_SHADOW + 1)
  63
  64 /* TWL6040_REG_SW_SHADOW (0x2F) fields */
  65 #define TWL6040_EAR_PATH_ENABLE 0x01
  66
  67 struct twl6040_output {
  68         u16 active;
  69         u16 left_vol;
  70         u16 right_vol;
  71         u16 left_step;
  72         u16 right_step;
  73         unsigned int step_delay;
  74         u16 ramp;
  75         struct delayed_work work;
  76         struct completion ramp_done;
  77 };
  78
  79 struct twl6040_jack_data {
  80         struct snd_soc_jack *jack;
  81         struct delayed_work work;
  82         int report;
  83 };
  84
  85 /* codec private data */
  86 struct twl6040_data {
  87         int plug_irq;
  88         int codec_powered;
  89         int pll;
  90         int non_lp;
  91         int pll_power_mode;
  92         int hs_power_mode;
  93         int hs_power_mode_locked;
  94         unsigned int clk_in;
  95         unsigned int sysclk;
  96         u16 hs_left_step;
  97         u16 hs_right_step;
  98         u16 hf_left_step;
  99         u16 hf_right_step;
 100         struct twl6040_jack_data hs_jack;
 101         struct snd_soc_codec *codec;
 102         struct workqueue_struct *workqueue;
 103         struct mutex mutex;
 104         struct twl6040_output headset;
 105         struct twl6040_output handsfree;
 106         struct workqueue_struct *hf_workqueue;
 107         struct workqueue_struct *hs_workqueue;
 108 };
 109
 110 /*
 111  * twl6040 register cache & default register settings
 112  */
 113 static const u8 twl6040_reg[TWL6040_CACHEREGNUM] = {
 114         0x00, /* not used       0x00    */
 115         0x4B, /* REG_ASICID     0x01 (ro) */
 116         0x00, /* REG_ASICREV    0x02 (ro) */
 117         0x00, /* REG_INTID      0x03    */
 118         0x00, /* REG_INTMR      0x04    */
 119         0x00, /* REG_NCPCTRL    0x05    */
 120         0x00, /* REG_LDOCTL     0x06    */
 121         0x60, /* REG_HPPLLCTL   0x07    */
 122         0x00, /* REG_LPPLLCTL   0x08    */
 123         0x4A, /* REG_LPPLLDIV   0x09    */
 124         0x00, /* REG_AMICBCTL   0x0A    */
 125         0x00, /* REG_DMICBCTL   0x0B    */
 126         0x00, /* REG_MICLCTL    0x0C    */
 127         0x00, /* REG_MICRCTL    0x0D    */
 128         0x00, /* REG_MICGAIN    0x0E    */
 129         0x1B, /* REG_LINEGAIN   0x0F    */
 130         0x00, /* REG_HSLCTL     0x10    */
 131         0x00, /* REG_HSRCTL     0x11    */
 132         0x00, /* REG_HSGAIN     0x12    */
 133         0x00, /* REG_EARCTL     0x13    */
 134         0x00, /* REG_HFLCTL     0x14    */
 135         0x00, /* REG_HFLGAIN    0x15    */
 136         0x00, /* REG_HFRCTL     0x16    */
 137         0x00, /* REG_HFRGAIN    0x17    */
 138         0x00, /* REG_VIBCTLL    0x18    */
 139         0x00, /* REG_VIBDATL    0x19    */
 140         0x00, /* REG_VIBCTLR    0x1A    */
 141         0x00, /* REG_VIBDATR    0x1B    */
 142         0x00, /* REG_HKCTL1     0x1C    */
 143         0x00, /* REG_HKCTL2     0x1D    */
 144         0x00, /* REG_GPOCTL     0x1E    */
 145         0x00, /* REG_ALB        0x1F    */
 146         0x00, /* REG_DLB        0x20    */
 147         0x00, /* not used       0x21    */
 148         0x00, /* not used       0x22    */
 149         0x00, /* not used       0x23    */
 150         0x00, /* not used       0x24    */
 151         0x00, /* not used       0x25    */
 152         0x00, /* not used       0x26    */
 153         0x00, /* not used       0x27    */
 154         0x00, /* REG_TRIM1      0x28    */
 155         0x00, /* REG_TRIM2      0x29    */
 156         0x00, /* REG_TRIM3      0x2A    */
 157         0x00, /* REG_HSOTRIM    0x2B    */
 158         0x00, /* REG_HFOTRIM    0x2C    */
 159         0x09, /* REG_ACCCTL     0x2D    */
 160         0x00, /* REG_STATUS     0x2E (ro) */
 161
 162         0x00, /* REG_SW_SHADOW  0x2F - Shadow, non HW register */
 163 };
 164
 165 /* List of registers to be restored after power up */
 166 static const int twl6040_restore_list[] = {
 167         TWL6040_REG_MICLCTL,
 168         TWL6040_REG_MICRCTL,
 169         TWL6040_REG_MICGAIN,
 170         TWL6040_REG_LINEGAIN,
 171         TWL6040_REG_HSLCTL,
 172         TWL6040_REG_HSRCTL,
 173         TWL6040_REG_HSGAIN,
 174         TWL6040_REG_EARCTL,
 175         TWL6040_REG_HFLCTL,
 176         TWL6040_REG_HFLGAIN,
 177         TWL6040_REG_HFRCTL,
 178         TWL6040_REG_HFRGAIN,
 179 };
 180
 181 /* set of rates for each pll: low-power and high-performance */
 182 static unsigned int lp_rates[] = {
 183         8000,
 184         11250,
 185         16000,
 186         22500,
 187         32000,
 188         44100,
 189         48000,
 190         88200,
 191         96000,
 192 };
 193
 194 static unsigned int hp_rates[] = {
 195         8000,
 196         16000,
 197         32000,
 198         48000,
 199         96000,
 200 };
 201
 202 static struct snd_pcm_hw_constraint_list sysclk_constraints[] = {
 203         { .count = ARRAY_SIZE(lp_rates), .list = lp_rates, },
 204         { .count = ARRAY_SIZE(hp_rates), .list = hp_rates, },
 205 };
 206
 207 /*
 208  * read twl6040 register cache
 209  */
 210 static inline unsigned int twl6040_read_reg_cache(struct snd_soc_codec *codec,
 211                                                 unsigned int reg)
 212 {
 213         u8 *cache = codec->reg_cache;
 214
 215         if (reg >= TWL6040_CACHEREGNUM)
 216                 return -EIO;
 217
 218         return cache[reg];
 219 }
 220
 221 /*
 222  * write twl6040 register cache
 223  */
 224 static inline void twl6040_write_reg_cache(struct snd_soc_codec *codec,
 225                                                 u8 reg, u8 value)
 226 {
 227         u8 *cache = codec->reg_cache;
 228
 229         if (reg >= TWL6040_CACHEREGNUM)
 230                 return;
 231         cache[reg] = value;
 232 }
 233
 234 /*
 235  * read from twl6040 hardware register
 236  */
 237 static int twl6040_read_reg_volatile(struct snd_soc_codec *codec,
 238                         unsigned int reg)
 239 {
 240         struct twl6040 *twl6040 = codec->control_data;
 241         u8 value;
 242
 243         if (reg >= TWL6040_CACHEREGNUM)
 244                 return -EIO;
 245
 246         if (likely(reg < TWL6040_REG_SW_SHADOW)) {
 247                 value = twl6040_reg_read(twl6040, reg);
 248                 twl6040_write_reg_cache(codec, reg, value);
 249         } else {
 250                 value = twl6040_read_reg_cache(codec, reg);
 251         }
 252
 253         return value;
 254 }
 255
 256 /*
 257  * write to the twl6040 register space
 258  */
 259 static int twl6040_write(struct snd_soc_codec *codec,
 260                         unsigned int reg, unsigned int value)
 261 {
 262         struct twl6040 *twl6040 = codec->control_data;
 263
 264         if (reg >= TWL6040_CACHEREGNUM)
 265                 return -EIO;
 266
 267         twl6040_write_reg_cache(codec, reg, value);
 268         if (likely(reg < TWL6040_REG_SW_SHADOW))
 269                 return twl6040_reg_write(twl6040, reg, value);
 270         else
 271                 return 0;
 272 }
 273
 274 static void twl6040_init_chip(struct snd_soc_codec *codec)
 275 {
 276         struct twl6040 *twl6040 = codec->control_data;
 277         u8 val;
 278
 279         /* Update reg_cache: ASICREV, and TRIM values */
 280         val = twl6040_get_revid(twl6040);
 281         twl6040_write_reg_cache(codec, TWL6040_REG_ASICREV, val);
 282
 283         twl6040_read_reg_volatile(codec, TWL6040_REG_TRIM1);
 284         twl6040_read_reg_volatile(codec, TWL6040_REG_TRIM2);
 285         twl6040_read_reg_volatile(codec, TWL6040_REG_TRIM3);
 286         twl6040_read_reg_volatile(codec, TWL6040_REG_HSOTRIM);
 287         twl6040_read_reg_volatile(codec, TWL6040_REG_HFOTRIM);
 288
 289         /* Change chip defaults */
 290         /* No imput selected for microphone amplifiers */
 291         twl6040_write_reg_cache(codec, TWL6040_REG_MICLCTL, 0x18);
 292         twl6040_write_reg_cache(codec, TWL6040_REG_MICRCTL, 0x18);
 293
 294         /*
 295          * We need to lower the default gain values, so the ramp code
 296          * can work correctly for the first playback.
 297          * This reduces the pop noise heard at the first playback.
 298          */
 299         twl6040_write_reg_cache(codec, TWL6040_REG_HSGAIN, 0xff);
 300         twl6040_write_reg_cache(codec, TWL6040_REG_EARCTL, 0x1e);
 301         twl6040_write_reg_cache(codec, TWL6040_REG_HFLGAIN, 0x1d);
 302         twl6040_write_reg_cache(codec, TWL6040_REG_HFRGAIN, 0x1d);
 303         twl6040_write_reg_cache(codec, TWL6040_REG_LINEGAIN, 0);
 304 }
 305
 306 static void twl6040_restore_regs(struct snd_soc_codec *codec)
 307 {
 308         u8 *cache = codec->reg_cache;
 309         int reg, i;
 310
 311         for (i = 0; i < ARRAY_SIZE(twl6040_restore_list); i++) {
 312                 reg = twl6040_restore_list[i];
 313                 twl6040_write(codec, reg, cache[reg]);
 314         }
 315 }
 316
 317 /*
 318  * Ramp HS PGA volume to minimise pops at stream startup and shutdown.
 319  */
 320 static inline int twl6040_hs_ramp_step(struct snd_soc_codec *codec,
 321                         unsigned int left_step, unsigned int right_step)
 322 {
 323
 324         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 325         struct twl6040_output *headset = &priv->headset;
 326         int left_complete = 0, right_complete = 0;
 327         u8 reg, val;
 328
 329         /* left channel */
 330         left_step = (left_step > 0xF) ? 0xF : left_step;
 331         reg = twl6040_read_reg_cache(codec, TWL6040_REG_HSGAIN);
 332         val = (~reg & TWL6040_HSL_VOL_MASK);
 333
 334         if (headset->ramp == TWL6040_RAMP_UP) {
 335                 /* ramp step up */
 336                 if (val < headset->left_vol) {
 337                         if (val + left_step > headset->left_vol)
 338                                 val = headset->left_vol;
 339                         else
 340                                 val += left_step;
 341
 342                         reg &= ~TWL6040_HSL_VOL_MASK;
 343                         twl6040_write(codec, TWL6040_REG_HSGAIN,
 344                                         (reg | (~val & TWL6040_HSL_VOL_MASK)));
 345                 } else {
 346                         left_complete = 1;
 347                 }
 348         } else if (headset->ramp == TWL6040_RAMP_DOWN) {
 349                 /* ramp step down */
 350                 if (val > 0x0) {
 351                         if ((int)val - (int)left_step < 0)
 352                                 val = 0;
 353                         else
 354                                 val -= left_step;
 355
 356                         reg &= ~TWL6040_HSL_VOL_MASK;
 357                         twl6040_write(codec, TWL6040_REG_HSGAIN, reg |
 358                                                 (~val & TWL6040_HSL_VOL_MASK));
 359                 } else {
 360                         left_complete = 1;
 361                 }
 362         }
 363
 364         /* right channel */
 365         right_step = (right_step > 0xF) ? 0xF : right_step;
 366         reg = twl6040_read_reg_cache(codec, TWL6040_REG_HSGAIN);
 367         val = (~reg & TWL6040_HSR_VOL_MASK) >> TWL6040_HSR_VOL_SHIFT;
 368
 369         if (headset->ramp == TWL6040_RAMP_UP) {
 370                 /* ramp step up */
 371                 if (val < headset->right_vol) {
 372                         if (val + right_step > headset->right_vol)
 373                                 val = headset->right_vol;
 374                         else
 375                                 val += right_step;
 376
 377                         reg &= ~TWL6040_HSR_VOL_MASK;
 378                         twl6040_write(codec, TWL6040_REG_HSGAIN,
 379                                 (reg | (~val << TWL6040_HSR_VOL_SHIFT)));
 380                 } else {
 381                         right_complete = 1;
 382                 }
 383         } else if (headset->ramp == TWL6040_RAMP_DOWN) {
 384                 /* ramp step down */
 385                 if (val > 0x0) {
 386                         if ((int)val - (int)right_step < 0)
 387                                 val = 0;
 388                         else
 389                                 val -= right_step;
 390
 391                         reg &= ~TWL6040_HSR_VOL_MASK;
 392                         twl6040_write(codec, TWL6040_REG_HSGAIN,
 393                                          reg | (~val << TWL6040_HSR_VOL_SHIFT));
 394                 } else {
 395                         right_complete = 1;
 396                 }
 397         }
 398
 399         return left_complete & right_complete;
 400 }
 401
 402 /*
 403  * Ramp HF PGA volume to minimise pops at stream startup and shutdown.
 404  */
 405 static inline int twl6040_hf_ramp_step(struct snd_soc_codec *codec,
 406                         unsigned int left_step, unsigned int right_step)
 407 {
 408         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 409         struct twl6040_output *handsfree = &priv->handsfree;
 410         int left_complete = 0, right_complete = 0;
 411         u16 reg, val;
 412
 413         /* left channel */
 414         left_step = (left_step > 0x1D) ? 0x1D : left_step;
 415         reg = twl6040_read_reg_cache(codec, TWL6040_REG_HFLGAIN);
 416         reg = 0x1D - reg;
 417         val = (reg & TWL6040_HF_VOL_MASK);
 418         if (handsfree->ramp == TWL6040_RAMP_UP) {
 419                 /* ramp step up */
 420                 if (val < handsfree->left_vol) {
 421                         if (val + left_step > handsfree->left_vol)
 422                                 val = handsfree->left_vol;
 423                         else
 424                                 val += left_step;
 425
 426                         reg &= ~TWL6040_HF_VOL_MASK;
 427                         twl6040_write(codec, TWL6040_REG_HFLGAIN,
 428                                                 reg | (0x1D - val));
 429                 } else {
 430                         left_complete = 1;
 431                 }
 432         } else if (handsfree->ramp == TWL6040_RAMP_DOWN) {
 433                 /* ramp step down */
 434                 if (val > 0) {
 435                         if ((int)val - (int)left_step < 0)
 436                                 val = 0;
 437                         else
 438                                 val -= left_step;
 439
 440                         reg &= ~TWL6040_HF_VOL_MASK;
 441                         twl6040_write(codec, TWL6040_REG_HFLGAIN,
 442                                                 reg | (0x1D - val));
 443                 } else {
 444                         left_complete = 1;
 445                 }
 446         }
 447
 448         /* right channel */
 449         right_step = (right_step > 0x1D) ? 0x1D : right_step;
 450         reg = twl6040_read_reg_cache(codec, TWL6040_REG_HFRGAIN);
 451         reg = 0x1D - reg;
 452         val = (reg & TWL6040_HF_VOL_MASK);
 453         if (handsfree->ramp == TWL6040_RAMP_UP) {
 454                 /* ramp step up */
 455                 if (val < handsfree->right_vol) {
 456                         if (val + right_step > handsfree->right_vol)
 457                                 val = handsfree->right_vol;
 458                         else
 459                                 val += right_step;
 460
 461                         reg &= ~TWL6040_HF_VOL_MASK;
 462                         twl6040_write(codec, TWL6040_REG_HFRGAIN,
 463                                                 reg | (0x1D - val));
 464                 } else {
 465                         right_complete = 1;
 466                 }
 467         } else if (handsfree->ramp == TWL6040_RAMP_DOWN) {
 468                 /* ramp step down */
 469                 if (val > 0) {
 470                         if ((int)val - (int)right_step < 0)
 471                                 val = 0;
 472                         else
 473                                 val -= right_step;
 474
 475                         reg &= ~TWL6040_HF_VOL_MASK;
 476                         twl6040_write(codec, TWL6040_REG_HFRGAIN,
 477                                                 reg | (0x1D - val));
 478                 }
 479         }
 480
 481         return left_complete & right_complete;
 482 }
 483
 484 /*
 485  * This work ramps both output PGAs at stream start/stop time to
 486  * minimise pop associated with DAPM power switching.
 487  */
 488 static void twl6040_pga_hs_work(struct work_struct *work)
 489 {
 490         struct twl6040_data *priv =
 491                 container_of(work, struct twl6040_data, headset.work.work);
 492         struct snd_soc_codec *codec = priv->codec;
 493         struct twl6040_output *headset = &priv->headset;
 494         unsigned int delay = headset->step_delay;
 495         int i, headset_complete;
 496
 497         /* do we need to ramp at all ? */
 498         if (headset->ramp == TWL6040_RAMP_NONE)
 499                 return;
 500
 501         /* HS PGA volumes have 4 bits of resolution to ramp */
 502         for (i = 0; i <= 16; i++) {
 503                 headset_complete = twl6040_hs_ramp_step(codec,
 504                                                 headset->left_step,
 505                                                 headset->right_step);
 506
 507                 /* ramp finished ? */
 508                 if (headset_complete)
 509                         break;
 510
 511                 /*
 512                  * TODO: tune: delay is longer over 0dB
 513                  * as increases are larger.
 514                  */
 515                 if (i >= 8)
 516                         schedule_timeout_interruptible(msecs_to_jiffies(delay +
 517                                                         (delay >> 1)));
 518                 else
 519                         schedule_timeout_interruptible(msecs_to_jiffies(delay));
 520         }
 521
 522         if (headset->ramp == TWL6040_RAMP_DOWN) {
 523                 headset->active = 0;
 524                 complete(&headset->ramp_done);
 525         } else {
 526                 headset->active = 1;
 527         }
 528         headset->ramp = TWL6040_RAMP_NONE;
 529 }
 530
 531 static void twl6040_pga_hf_work(struct work_struct *work)
 532 {
 533         struct twl6040_data *priv =
 534                 container_of(work, struct twl6040_data, handsfree.work.work);
 535         struct snd_soc_codec *codec = priv->codec;
 536         struct twl6040_output *handsfree = &priv->handsfree;
 537         unsigned int delay = handsfree->step_delay;
 538         int i, handsfree_complete;
 539
 540         /* do we need to ramp at all ? */
 541         if (handsfree->ramp == TWL6040_RAMP_NONE)
 542                 return;
 543
 544         /* HF PGA volumes have 5 bits of resolution to ramp */
 545         for (i = 0; i <= 32; i++) {
 546                 handsfree_complete = twl6040_hf_ramp_step(codec,
 547                                                 handsfree->left_step,
 548                                                 handsfree->right_step);
 549
 550                 /* ramp finished ? */
 551                 if (handsfree_complete)
 552                         break;
 553
 554                 /*
 555                  * TODO: tune: delay is longer over 0dB
 556                  * as increases are larger.
 557                  */
 558                 if (i >= 16)
 559                         schedule_timeout_interruptible(msecs_to_jiffies(delay +
 560                                                        (delay >> 1)));
 561                 else
 562                         schedule_timeout_interruptible(msecs_to_jiffies(delay));
 563         }
 564
 565
 566         if (handsfree->ramp == TWL6040_RAMP_DOWN) {
 567                 handsfree->active = 0;
 568                 complete(&handsfree->ramp_done);
 569         } else
 570                 handsfree->active = 1;
 571         handsfree->ramp = TWL6040_RAMP_NONE;
 572 }
 573
 574 static int out_drv_event(struct snd_soc_dapm_widget *w,
 575                         struct snd_kcontrol *kcontrol, int event)
 576 {
 577         struct snd_soc_codec *codec = w->codec;
 578         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 579         struct twl6040_output *out;
 580         struct delayed_work *work;
 581         struct workqueue_struct *queue;
 582
 583         switch (w->shift) {
 584         case 2:
 585         case 3:
 586                 out = &priv->headset;
 587                 queue = priv->hs_workqueue;
 588                 out->left_step = priv->hs_left_step;
 589                 out->right_step = priv->hs_right_step;
 590                 out->step_delay = 5;    /* 5 ms between volume ramp steps */
 591                 break;
 592         case 4:
 593                 out = &priv->handsfree;
 594                 queue = priv->hf_workqueue;
 595                 out->left_step = priv->hf_left_step;
 596                 out->right_step = priv->hf_right_step;
 597                 out->step_delay = 5;    /* 5 ms between volume ramp steps */
 598                 if (SND_SOC_DAPM_EVENT_ON(event))
 599                         priv->non_lp++;
 600                 else
 601                         priv->non_lp--;
 602                 break;
 603         default:
 604                 return -1;
 605         }
 606
 607         work = &out->work;
 608
 609         switch (event) {
 610         case SND_SOC_DAPM_POST_PMU:
 611                 if (out->active)
 612                         break;
 613
 614                 /* don't use volume ramp for power-up */
 615                 out->left_step = out->left_vol;
 616                 out->right_step = out->right_vol;
 617
 618                 if (!delayed_work_pending(work)) {
 619                         out->ramp = TWL6040_RAMP_UP;
 620                         queue_delayed_work(queue, work,
 621                                         msecs_to_jiffies(1));
 622                 }
 623                 break;
 624
 625         case SND_SOC_DAPM_PRE_PMD:
 626                 if (!out->active)
 627                         break;
 628
 629                 if (!delayed_work_pending(work)) {
 630                         /* use volume ramp for power-down */
 631                         out->ramp = TWL6040_RAMP_DOWN;
 632                         INIT_COMPLETION(out->ramp_done);
 633
 634                         queue_delayed_work(queue, work,
 635                                         msecs_to_jiffies(1));
 636
 637                         wait_for_completion_timeout(&out->ramp_done,
 638                                         msecs_to_jiffies(2000));
 639                 }
 640                 break;
 641         }
 642
 643         return 0;
 644 }
 645
 646 /* set headset dac and driver power mode */
 647 static int headset_power_mode(struct snd_soc_codec *codec, int high_perf)
 648 {
 649         int hslctl, hsrctl;
 650         int mask = TWL6040_HSDRVMODE | TWL6040_HSDACMODE;
 651
 652         hslctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSLCTL);
 653         hsrctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSRCTL);
 654
 655         if (high_perf) {
 656                 hslctl &= ~mask;
 657                 hsrctl &= ~mask;
 658         } else {
 659                 hslctl |= mask;
 660                 hsrctl |= mask;
 661         }
 662
 663         twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl);
 664         twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl);
 665
 666         return 0;
 667 }
 668
 669 static int twl6040_hs_dac_event(struct snd_soc_dapm_widget *w,
 670                         struct snd_kcontrol *kcontrol, int event)
 671 {
 672         msleep(1);
 673         return 0;
 674 }
 675
 676 static int twl6040_power_mode_event(struct snd_soc_dapm_widget *w,
 677                         struct snd_kcontrol *kcontrol, int event)
 678 {
 679         struct snd_soc_codec *codec = w->codec;
 680         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 681         int ret = 0;
 682
 683         if (SND_SOC_DAPM_EVENT_ON(event)) {
 684                 priv->non_lp++;
 685                 if (!strcmp(w->name, "Earphone Driver")) {
 686                         /* Earphone doesn't support low power mode */
 687                         priv->hs_power_mode_locked = 1;
 688                         ret = headset_power_mode(codec, 1);
 689                 }
 690         } else {
 691                 priv->non_lp--;
 692                 if (!strcmp(w->name, "Earphone Driver")) {
 693                         priv->hs_power_mode_locked = 0;
 694                         ret = headset_power_mode(codec, priv->hs_power_mode);
 695                 }
 696         }
 697
 698         msleep(1);
 699
 700         return ret;
 701 }
 702
 703 static void twl6040_hs_jack_report(struct snd_soc_codec *codec,
 704                                    struct snd_soc_jack *jack, int report)
 705 {
 706         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 707         int status;
 708
 709         mutex_lock(&priv->mutex);
 710
 711         /* Sync status */
 712         status = twl6040_read_reg_volatile(codec, TWL6040_REG_STATUS);
 713         if (status & TWL6040_PLUGCOMP)
 714                 snd_soc_jack_report(jack, report, report);
 715         else
 716                 snd_soc_jack_report(jack, 0, report);
 717
 718         mutex_unlock(&priv->mutex);
 719 }
 720
 721 void twl6040_hs_jack_detect(struct snd_soc_codec *codec,
 722                                 struct snd_soc_jack *jack, int report)
 723 {
 724         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 725         struct twl6040_jack_data *hs_jack = &priv->hs_jack;
 726
 727         hs_jack->jack = jack;
 728         hs_jack->report = report;
 729
 730         twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
 731 }
 732 EXPORT_SYMBOL_GPL(twl6040_hs_jack_detect);
 733
 734 static void twl6040_accessory_work(struct work_struct *work)
 735 {
 736         struct twl6040_data *priv = container_of(work,
 737                                         struct twl6040_data, hs_jack.work.work);
 738         struct snd_soc_codec *codec = priv->codec;
 739         struct twl6040_jack_data *hs_jack = &priv->hs_jack;
 740
 741         twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
 742 }
 743
 744 /* audio interrupt handler */
 745 static irqreturn_t twl6040_audio_handler(int irq, void *data)
 746 {
 747         struct snd_soc_codec *codec = data;
 748         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 749
 750         queue_delayed_work(priv->workqueue, &priv->hs_jack.work,
 751                            msecs_to_jiffies(200));
 752
 753         return IRQ_HANDLED;
 754 }
 755
 756 static int twl6040_put_volsw(struct snd_kcontrol *kcontrol,
 757                                   struct snd_ctl_elem_value *ucontrol)
 758 {
 759         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 760         struct twl6040_data *twl6040_priv = snd_soc_codec_get_drvdata(codec);
 761         struct twl6040_output *out = NULL;
 762         struct soc_mixer_control *mc =
 763                 (struct soc_mixer_control *)kcontrol->private_value;
 764         int ret;
 765
 766         /* For HS and HF we shadow the values and only actually write
 767          * them out when active in order to ensure the amplifier comes on
 768          * as quietly as possible. */
 769         switch (mc->reg) {
 770         case TWL6040_REG_HSGAIN:
 771                 out = &twl6040_priv->headset;
 772                 break;
 773         case TWL6040_REG_HFLGAIN:
 774                 out = &twl6040_priv->handsfree;
 775                 break;
 776         default:
 777                 break;
 778         }
 779
 780         if (out) {
 781                 out->left_vol = ucontrol->value.integer.value[0];
 782                 out->right_vol = ucontrol->value.integer.value[1];
 783                 if (!out->active)
 784                         return 1;
 785         }
 786
 787         /* call the appropriate handler depending on the rreg */
 788         if (mc->rreg)
 789                 ret = snd_soc_put_volsw_2r(kcontrol, ucontrol);
 790         else
 791                 ret = snd_soc_put_volsw(kcontrol, ucontrol);
 792
 793         if (ret < 0)
 794                 return ret;
 795
 796         return 1;
 797 }
 798
 799 static int twl6040_get_volsw(struct snd_kcontrol *kcontrol,
 800                                 struct snd_ctl_elem_value *ucontrol)
 801 {
 802         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 803         struct twl6040_data *twl6040_priv = snd_soc_codec_get_drvdata(codec);
 804         struct twl6040_output *out = &twl6040_priv->headset;
 805         struct soc_mixer_control *mc =
 806                 (struct soc_mixer_control *)kcontrol->private_value;
 807
 808         switch (mc->reg) {
 809         case TWL6040_REG_HSGAIN:
 810                 out = &twl6040_priv->headset;
 811                 break;
 812         case TWL6040_REG_HFLGAIN:
 813                 out = &twl6040_priv->handsfree;
 814                 break;
 815         default:
 816                 break;
 817         }
 818
 819         if (out) {
 820                 ucontrol->value.integer.value[0] = out->left_vol;
 821                 ucontrol->value.integer.value[1] = out->right_vol;
 822                 return 0;
 823         }
 824
 825         /* call the appropriate handler depending on the rreg */
 826         if (mc->rreg)
 827                 return snd_soc_get_volsw_2r(kcontrol, ucontrol);
 828         else
 829                 return snd_soc_get_volsw(kcontrol, ucontrol);
 830 }
 831
 832 /* double control with volume update */
 833 #define SOC_TWL6040_DOUBLE_TLV(xname, xreg, shift_left, shift_right, xmax,\
 834                                                         xinvert, tlv_array)\
 835 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 836         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 837                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 838         .tlv.p = (tlv_array), \
 839         .info = snd_soc_info_volsw, .get = twl6040_get_volsw, \
 840         .put = twl6040_put_volsw, \
 841         .private_value = (unsigned long)&(struct soc_mixer_control) \
 842                 {.reg = xreg, .shift = shift_left, .rshift = shift_right,\
 843                  .max = xmax, .platform_max = xmax, .invert = xinvert} }
 844
 845 /* double control with volume update */
 846 #define SOC_TWL6040_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax,\
 847                                 xinvert, tlv_array)\
 848 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 849         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 850                 SNDRV_CTL_ELEM_ACCESS_READWRITE | \
 851                 SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
 852         .tlv.p = (tlv_array), \
 853         .info = snd_soc_info_volsw_2r, \
 854         .get = twl6040_get_volsw, .put = twl6040_put_volsw, \
 855         .private_value = (unsigned long)&(struct soc_mixer_control) \
 856                 {.reg = reg_left, .rreg = reg_right, .shift = xshift, \
 857                  .rshift = xshift, .max = xmax, .invert = xinvert}, }
 858
 859 /*
 860  * MICATT volume control:
 861  * from -6 to 0 dB in 6 dB steps
 862  */
 863 static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0);
 864
 865 /*
 866  * MICGAIN volume control:
 867  * from 6 to 30 dB in 6 dB steps
 868  */
 869 static DECLARE_TLV_DB_SCALE(mic_amp_tlv, 600, 600, 0);
 870
 871 /*
 872  * AFMGAIN volume control:
 873  * from -18 to 24 dB in 6 dB steps
 874  */
 875 static DECLARE_TLV_DB_SCALE(afm_amp_tlv, -1800, 600, 0);
 876
 877 /*
 878  * HSGAIN volume control:
 879  * from -30 to 0 dB in 2 dB steps
 880  */
 881 static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0);
 882
 883 /*
 884  * HFGAIN volume control:
 885  * from -52 to 6 dB in 2 dB steps
 886  */
 887 static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0);
 888
 889 /*
 890  * EPGAIN volume control:
 891  * from -24 to 6 dB in 2 dB steps
 892  */
 893 static DECLARE_TLV_DB_SCALE(ep_tlv, -2400, 200, 0);
 894
 895 /* Left analog microphone selection */
 896 static const char *twl6040_amicl_texts[] =
 897         {"Headset Mic", "Main Mic", "Aux/FM Left", "Off"};
 898
 899 /* Right analog microphone selection */
 900 static const char *twl6040_amicr_texts[] =
 901         {"Headset Mic", "Sub Mic", "Aux/FM Right", "Off"};
 902
 903 static const struct soc_enum twl6040_enum[] = {
 904         SOC_ENUM_SINGLE(TWL6040_REG_MICLCTL, 3, 4, twl6040_amicl_texts),
 905         SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL, 3, 4, twl6040_amicr_texts),
 906 };
 907
 908 static const char *twl6040_hs_texts[] = {
 909         "Off", "HS DAC", "Line-In amp"
 910 };
 911
 912 static const struct soc_enum twl6040_hs_enum[] = {
 913         SOC_ENUM_SINGLE(TWL6040_REG_HSLCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
 914                         twl6040_hs_texts),
 915         SOC_ENUM_SINGLE(TWL6040_REG_HSRCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
 916                         twl6040_hs_texts),
 917 };
 918
 919 static const char *twl6040_hf_texts[] = {
 920         "Off", "HF DAC", "Line-In amp"
 921 };
 922
 923 static const struct soc_enum twl6040_hf_enum[] = {
 924         SOC_ENUM_SINGLE(TWL6040_REG_HFLCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
 925                         twl6040_hf_texts),
 926         SOC_ENUM_SINGLE(TWL6040_REG_HFRCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
 927                         twl6040_hf_texts),
 928 };
 929
 930 static const struct snd_kcontrol_new amicl_control =
 931         SOC_DAPM_ENUM("Route", twl6040_enum[0]);
 932
 933 static const struct snd_kcontrol_new amicr_control =
 934         SOC_DAPM_ENUM("Route", twl6040_enum[1]);
 935
 936 /* Headset DAC playback switches */
 937 static const struct snd_kcontrol_new hsl_mux_controls =
 938         SOC_DAPM_ENUM("Route", twl6040_hs_enum[0]);
 939
 940 static const struct snd_kcontrol_new hsr_mux_controls =
 941         SOC_DAPM_ENUM("Route", twl6040_hs_enum[1]);
 942
 943 /* Handsfree DAC playback switches */
 944 static const struct snd_kcontrol_new hfl_mux_controls =
 945         SOC_DAPM_ENUM("Route", twl6040_hf_enum[0]);
 946
 947 static const struct snd_kcontrol_new hfr_mux_controls =
 948         SOC_DAPM_ENUM("Route", twl6040_hf_enum[1]);
 949
 950 static const struct snd_kcontrol_new ep_path_enable_control =
 951         SOC_DAPM_SINGLE("Switch", TWL6040_REG_SW_SHADOW, 0, 1, 0);
 952
 953 static const struct snd_kcontrol_new auxl_switch_control =
 954         SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFLCTL, 6, 1, 0);
 955
 956 static const struct snd_kcontrol_new auxr_switch_control =
 957         SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFRCTL, 6, 1, 0);
 958
 959 /* Headset power mode */
 960 static const char *twl6040_power_mode_texts[] = {
 961         "Low-Power", "High-Perfomance",
 962 };
 963
 964 static const struct soc_enum twl6040_power_mode_enum =
 965         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(twl6040_power_mode_texts),
 966                         twl6040_power_mode_texts);
 967
 968 static int twl6040_headset_power_get_enum(struct snd_kcontrol *kcontrol,
 969         struct snd_ctl_elem_value *ucontrol)
 970 {
 971         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 972         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 973
 974         ucontrol->value.enumerated.item[0] = priv->hs_power_mode;
 975
 976         return 0;
 977 }
 978
 979 static int twl6040_headset_power_put_enum(struct snd_kcontrol *kcontrol,
 980         struct snd_ctl_elem_value *ucontrol)
 981 {
 982         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 983         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 984         int high_perf = ucontrol->value.enumerated.item[0];
 985         int ret = 0;
 986
 987         if (!priv->hs_power_mode_locked)
 988                 ret = headset_power_mode(codec, high_perf);
 989
 990         if (!ret)
 991                 priv->hs_power_mode = high_perf;
 992
 993         return ret;
 994 }
 995
 996 static int twl6040_pll_get_enum(struct snd_kcontrol *kcontrol,
 997         struct snd_ctl_elem_value *ucontrol)
 998 {
 999         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
1000         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1001
1002         ucontrol->value.enumerated.item[0] = priv->pll_power_mode;
1003
1004         return 0;
1005 }
1006
1007 static int twl6040_pll_put_enum(struct snd_kcontrol *kcontrol,
1008         struct snd_ctl_elem_value *ucontrol)
1009 {
1010         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
1011         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1012
1013         priv->pll_power_mode = ucontrol->value.enumerated.item[0];
1014
1015         return 0;
1016 }
1017
1018 int twl6040_get_clk_id(struct snd_soc_codec *codec)
1019 {
1020         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1021
1022         return priv->pll_power_mode;
1023 }
1024 EXPORT_SYMBOL_GPL(twl6040_get_clk_id);
1025
1026 int twl6040_get_trim_value(struct snd_soc_codec *codec, enum twl6040_trim trim)
1027 {
1028         if (unlikely(trim >= TWL6040_TRIM_INVAL))
1029                 return -EINVAL;
1030
1031         return twl6040_read_reg_cache(codec, TWL6040_REG_TRIM1 + trim);
1032 }
1033 EXPORT_SYMBOL_GPL(twl6040_get_trim_value);
1034
1035 static const struct snd_kcontrol_new twl6040_snd_controls[] = {
1036         /* Capture gains */
1037         SOC_DOUBLE_TLV("Capture Preamplifier Volume",
1038                 TWL6040_REG_MICGAIN, 6, 7, 1, 1, mic_preamp_tlv),
1039         SOC_DOUBLE_TLV("Capture Volume",
1040                 TWL6040_REG_MICGAIN, 0, 3, 4, 0, mic_amp_tlv),
1041
1042         /* AFM gains */
1043         SOC_DOUBLE_TLV("Aux FM Volume",
1044                 TWL6040_REG_LINEGAIN, 0, 3, 7, 0, afm_amp_tlv),
1045
1046         /* Playback gains */
1047         SOC_TWL6040_DOUBLE_TLV("Headset Playback Volume",
1048                 TWL6040_REG_HSGAIN, 0, 4, 0xF, 1, hs_tlv),
1049         SOC_TWL6040_DOUBLE_R_TLV("Handsfree Playback Volume",
1050                 TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0, 0x1D, 1, hf_tlv),
1051         SOC_SINGLE_TLV("Earphone Playback Volume",
1052                 TWL6040_REG_EARCTL, 1, 0xF, 1, ep_tlv),
1053
1054         SOC_ENUM_EXT("Headset Power Mode", twl6040_power_mode_enum,
1055                 twl6040_headset_power_get_enum,
1056                 twl6040_headset_power_put_enum),
1057
1058         SOC_ENUM_EXT("PLL Selection", twl6040_power_mode_enum,
1059                 twl6040_pll_get_enum, twl6040_pll_put_enum),
1060 };
1061
1062 static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
1063         /* Inputs */
1064         SND_SOC_DAPM_INPUT("MAINMIC"),
1065         SND_SOC_DAPM_INPUT("HSMIC"),
1066         SND_SOC_DAPM_INPUT("SUBMIC"),
1067         SND_SOC_DAPM_INPUT("AFML"),
1068         SND_SOC_DAPM_INPUT("AFMR"),
1069
1070         /* Outputs */
1071         SND_SOC_DAPM_OUTPUT("HSOL"),
1072         SND_SOC_DAPM_OUTPUT("HSOR"),
1073         SND_SOC_DAPM_OUTPUT("HFL"),
1074         SND_SOC_DAPM_OUTPUT("HFR"),
1075         SND_SOC_DAPM_OUTPUT("EP"),
1076         SND_SOC_DAPM_OUTPUT("AUXL"),
1077         SND_SOC_DAPM_OUTPUT("AUXR"),
1078
1079         /* Analog input muxes for the capture amplifiers */
1080         SND_SOC_DAPM_MUX("Analog Left Capture Route",
1081                         SND_SOC_NOPM, 0, 0, &amicl_control),
1082         SND_SOC_DAPM_MUX("Analog Right Capture Route",
1083                         SND_SOC_NOPM, 0, 0, &amicr_control),
1084
1085         /* Analog capture PGAs */
1086         SND_SOC_DAPM_PGA("MicAmpL",
1087                         TWL6040_REG_MICLCTL, 0, 0, NULL, 0),
1088         SND_SOC_DAPM_PGA("MicAmpR",
1089                         TWL6040_REG_MICRCTL, 0, 0, NULL, 0),
1090
1091         /* Auxiliary FM PGAs */
1092         SND_SOC_DAPM_PGA("AFMAmpL",
1093                         TWL6040_REG_MICLCTL, 1, 0, NULL, 0),
1094         SND_SOC_DAPM_PGA("AFMAmpR",
1095                         TWL6040_REG_MICRCTL, 1, 0, NULL, 0),
1096
1097         /* ADCs */
1098         SND_SOC_DAPM_ADC("ADC Left", "Left Front Capture",
1099                         TWL6040_REG_MICLCTL, 2, 0),
1100         SND_SOC_DAPM_ADC("ADC Right", "Right Front Capture",
1101                         TWL6040_REG_MICRCTL, 2, 0),
1102
1103         /* Microphone bias */
1104         SND_SOC_DAPM_MICBIAS("Headset Mic Bias",
1105                         TWL6040_REG_AMICBCTL, 0, 0),
1106         SND_SOC_DAPM_MICBIAS("Main Mic Bias",
1107                         TWL6040_REG_AMICBCTL, 4, 0),
1108         SND_SOC_DAPM_MICBIAS("Digital Mic1 Bias",
1109                         TWL6040_REG_DMICBCTL, 0, 0),
1110         SND_SOC_DAPM_MICBIAS("Digital Mic2 Bias",
1111                         TWL6040_REG_DMICBCTL, 4, 0),
1112
1113         /* DACs */
1114         SND_SOC_DAPM_DAC_E("HSDAC Left", "Headset Playback",
1115                         TWL6040_REG_HSLCTL, 0, 0,
1116                         twl6040_hs_dac_event,
1117                         SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1118         SND_SOC_DAPM_DAC_E("HSDAC Right", "Headset Playback",
1119                         TWL6040_REG_HSRCTL, 0, 0,
1120                         twl6040_hs_dac_event,
1121                         SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1122         SND_SOC_DAPM_DAC_E("HFDAC Left", "Handsfree Playback",
1123                         TWL6040_REG_HFLCTL, 0, 0,
1124                         twl6040_power_mode_event,
1125                         SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1126         SND_SOC_DAPM_DAC_E("HFDAC Right", "Handsfree Playback",
1127                         TWL6040_REG_HFRCTL, 0, 0,
1128                         twl6040_power_mode_event,
1129                         SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1130
1131         SND_SOC_DAPM_MUX("Handsfree Left Playback",
1132                         SND_SOC_NOPM, 0, 0, &hfl_mux_controls),
1133         SND_SOC_DAPM_MUX("Handsfree Right Playback",
1134                         SND_SOC_NOPM, 0, 0, &hfr_mux_controls),
1135         /* Analog playback Muxes */
1136         SND_SOC_DAPM_MUX("Headset Left Playback",
1137                         SND_SOC_NOPM, 0, 0, &hsl_mux_controls),
1138         SND_SOC_DAPM_MUX("Headset Right Playback",
1139                         SND_SOC_NOPM, 0, 0, &hsr_mux_controls),
1140
1141         SND_SOC_DAPM_SWITCH("Earphone Playback", SND_SOC_NOPM, 0, 0,
1142                         &ep_path_enable_control),
1143         SND_SOC_DAPM_SWITCH("AUXL Playback", SND_SOC_NOPM, 0, 0,
1144                         &auxl_switch_control),
1145         SND_SOC_DAPM_SWITCH("AUXR Playback", SND_SOC_NOPM, 0, 0,
1146                         &auxr_switch_control),
1147
1148         /* Analog playback drivers */
1149         SND_SOC_DAPM_OUT_DRV_E("HF Left Driver",
1150                         TWL6040_REG_HFLCTL, 4, 0, NULL, 0,
1151                         out_drv_event,
1152                         SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1153         SND_SOC_DAPM_OUT_DRV_E("HF Right Driver",
1154                         TWL6040_REG_HFRCTL, 4, 0, NULL, 0,
1155                         out_drv_event,
1156                         SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1157         SND_SOC_DAPM_OUT_DRV_E("HS Left Driver",
1158                         TWL6040_REG_HSLCTL, 2, 0, NULL, 0,
1159                         out_drv_event,
1160                         SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1161         SND_SOC_DAPM_OUT_DRV_E("HS Right Driver",
1162                         TWL6040_REG_HSRCTL, 2, 0, NULL, 0,
1163                         out_drv_event,
1164                         SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1165         SND_SOC_DAPM_OUT_DRV_E("Earphone Driver",
1166                         TWL6040_REG_EARCTL, 0, 0, NULL, 0,
1167                         twl6040_power_mode_event,
1168                         SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1169
1170         /* Analog playback PGAs */
1171         SND_SOC_DAPM_PGA("HF Left PGA",
1172                         TWL6040_REG_HFLCTL, 1, 0, NULL, 0),
1173         SND_SOC_DAPM_PGA("HF Right PGA",
1174                         TWL6040_REG_HFRCTL, 1, 0, NULL, 0),
1175
1176 };
1177
1178 static const struct snd_soc_dapm_route intercon[] = {
1179         /* Capture path */
1180         {"Analog Left Capture Route", "Headset Mic", "HSMIC"},
1181         {"Analog Left Capture Route", "Main Mic", "MAINMIC"},
1182         {"Analog Left Capture Route", "Aux/FM Left", "AFML"},
1183
1184         {"Analog Right Capture Route", "Headset Mic", "HSMIC"},
1185         {"Analog Right Capture Route", "Sub Mic", "SUBMIC"},
1186         {"Analog Right Capture Route", "Aux/FM Right", "AFMR"},
1187
1188         {"MicAmpL", NULL, "Analog Left Capture Route"},
1189         {"MicAmpR", NULL, "Analog Right Capture Route"},
1190
1191         {"ADC Left", NULL, "MicAmpL"},
1192         {"ADC Right", NULL, "MicAmpR"},
1193
1194         /* AFM path */
1195         {"AFMAmpL", NULL, "AFML"},
1196         {"AFMAmpR", NULL, "AFMR"},
1197
1198         {"Headset Left Playback", "HS DAC", "HSDAC Left"},
1199         {"Headset Left Playback", "Line-In amp", "AFMAmpL"},
1200
1201         {"Headset Right Playback", "HS DAC", "HSDAC Right"},
1202         {"Headset Right Playback", "Line-In amp", "AFMAmpR"},
1203
1204         {"HS Left Driver", NULL, "Headset Left Playback"},
1205         {"HS Right Driver", NULL, "Headset Right Playback"},
1206
1207         {"HSOL", NULL, "HS Left Driver"},
1208         {"HSOR", NULL, "HS Right Driver"},
1209
1210         /* Earphone playback path */
1211         {"Earphone Playback", "Switch", "HSDAC Left"},
1212         {"Earphone Driver", NULL, "Earphone Playback"},
1213         {"EP", NULL, "Earphone Driver"},
1214
1215         {"Handsfree Left Playback", "HF DAC", "HFDAC Left"},
1216         {"Handsfree Left Playback", "Line-In amp", "AFMAmpL"},
1217
1218         {"Handsfree Right Playback", "HF DAC", "HFDAC Right"},
1219         {"Handsfree Right Playback", "Line-In amp", "AFMAmpR"},
1220
1221         {"HF Left PGA", NULL, "Handsfree Left Playback"},
1222         {"HF Right PGA", NULL, "Handsfree Right Playback"},
1223
1224         {"HF Left Driver", NULL, "HF Left PGA"},
1225         {"HF Right Driver", NULL, "HF Right PGA"},
1226
1227         {"HFL", NULL, "HF Left Driver"},
1228         {"HFR", NULL, "HF Right Driver"},
1229
1230         {"AUXL Playback", "Switch", "HF Left PGA"},
1231         {"AUXR Playback", "Switch", "HF Right PGA"},
1232
1233         {"AUXL", NULL, "AUXL Playback"},
1234         {"AUXR", NULL, "AUXR Playback"},
1235 };
1236
1237 static int twl6040_add_widgets(struct snd_soc_codec *codec)
1238 {
1239         struct snd_soc_dapm_context *dapm = &codec->dapm;
1240
1241         snd_soc_dapm_new_controls(dapm, twl6040_dapm_widgets,
1242                                  ARRAY_SIZE(twl6040_dapm_widgets));
1243         snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon));
1244         snd_soc_dapm_new_widgets(dapm);
1245
1246         return 0;
1247 }
1248
1249 static int twl6040_set_bias_level(struct snd_soc_codec *codec,
1250                                 enum snd_soc_bias_level level)
1251 {
1252         struct twl6040 *twl6040 = codec->control_data;
1253         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1254         int ret;
1255
1256         switch (level) {
1257         case SND_SOC_BIAS_ON:
1258                 break;
1259         case SND_SOC_BIAS_PREPARE:
1260                 break;
1261         case SND_SOC_BIAS_STANDBY:
1262                 if (priv->codec_powered)
1263                         break;
1264
1265                 ret = twl6040_power(twl6040, 1);
1266                 if (ret)
1267                         return ret;
1268
1269                 priv->codec_powered = 1;
1270
1271                 twl6040_restore_regs(codec);
1272
1273                 /* Set external boost GPO */
1274                 twl6040_write(codec, TWL6040_REG_GPOCTL, 0x02);
1275                 break;
1276         case SND_SOC_BIAS_OFF:
1277                 if (!priv->codec_powered)
1278                         break;
1279
1280                 twl6040_power(twl6040, 0);
1281                 priv->codec_powered = 0;
1282                 break;
1283         }
1284
1285         codec->dapm.bias_level = level;
1286
1287         return 0;
1288 }
1289
1290 static int twl6040_startup(struct snd_pcm_substream *substream,
1291                         struct snd_soc_dai *dai)
1292 {
1293         struct snd_soc_pcm_runtime *rtd = substream->private_data;
1294         struct snd_soc_codec *codec = rtd->codec;
1295         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1296
1297         snd_pcm_hw_constraint_list(substream->runtime, 0,
1298                                 SNDRV_PCM_HW_PARAM_RATE,
1299                                 &sysclk_constraints[priv->pll_power_mode]);
1300
1301         return 0;
1302 }
1303
1304 static int twl6040_hw_params(struct snd_pcm_substream *substream,
1305                         struct snd_pcm_hw_params *params,
1306                         struct snd_soc_dai *dai)
1307 {
1308         struct snd_soc_pcm_runtime *rtd = substream->private_data;
1309         struct snd_soc_codec *codec = rtd->codec;
1310         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1311         int rate;
1312
1313         rate = params_rate(params);
1314         switch (rate) {
1315         case 11250:
1316         case 22500:
1317         case 44100:
1318         case 88200:
1319                 /* These rates are not supported when HPPLL is in use */
1320                 if (unlikely(priv->pll == TWL6040_SYSCLK_SEL_HPPLL)) {
1321                         dev_err(codec->dev, "HPPLL does not support rate %d\n",
1322                                 rate);
1323                         return -EINVAL;
1324                 }
1325                 /* Capture is not supported with 17.64MHz sysclk */
1326                 if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
1327                         dev_err(codec->dev,
1328                                 "capture mode is not supported at %dHz\n",
1329                                 rate);
1330                         return -EINVAL;
1331                 }
1332                 priv->sysclk = 17640000;
1333                 break;
1334         case 8000:
1335         case 16000:
1336         case 32000:
1337         case 48000:
1338         case 96000:
1339                 priv->sysclk = 19200000;
1340                 break;
1341         default:
1342                 dev_err(codec->dev, "unsupported rate %d\n", rate);
1343                 return -EINVAL;
1344         }
1345
1346         return 0;
1347 }
1348
1349 static int twl6040_prepare(struct snd_pcm_substream *substream,
1350                         struct snd_soc_dai *dai)
1351 {
1352         struct snd_soc_pcm_runtime *rtd = substream->private_data;
1353         struct snd_soc_codec *codec = rtd->codec;
1354         struct twl6040 *twl6040 = codec->control_data;
1355         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1356         int ret;
1357
1358         if (!priv->sysclk) {
1359                 dev_err(codec->dev,
1360                         "no mclk configured, call set_sysclk() on init\n");
1361                 return -EINVAL;
1362         }
1363
1364         if ((priv->sysclk == 17640000) && priv->non_lp) {
1365                         dev_err(codec->dev,
1366                                 "some enabled paths aren't supported at %dHz\n",
1367                                 priv->sysclk);
1368                         return -EPERM;
1369         }
1370
1371         ret = twl6040_set_pll(twl6040, priv->pll, priv->clk_in, priv->sysclk);
1372         if (ret) {
1373                 dev_err(codec->dev, "Can not set PLL (%d)\n", ret);
1374                 return -EPERM;
1375         }
1376
1377         return 0;
1378 }
1379
1380 static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai,
1381                 int clk_id, unsigned int freq, int dir)
1382 {
1383         struct snd_soc_codec *codec = codec_dai->codec;
1384         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1385
1386         switch (clk_id) {
1387         case TWL6040_SYSCLK_SEL_LPPLL:
1388         case TWL6040_SYSCLK_SEL_HPPLL:
1389                 priv->pll = clk_id;
1390                 priv->clk_in = freq;
1391                 break;
1392         default:
1393                 dev_err(codec->dev, "unknown clk_id %d\n", clk_id);
1394                 return -EINVAL;
1395         }
1396
1397         return 0;
1398 }
1399
1400 static struct snd_soc_dai_ops twl6040_dai_ops = {
1401         .startup        = twl6040_startup,
1402         .hw_params      = twl6040_hw_params,
1403         .prepare        = twl6040_prepare,
1404         .set_sysclk     = twl6040_set_dai_sysclk,
1405 };
1406
1407 static struct snd_soc_dai_driver twl6040_dai[] = {
1408 {
1409         .name = "twl6040-legacy",
1410         .playback = {
1411                 .stream_name = "Playback",
1412                 .channels_min = 1,
1413                 .channels_max = 5,
1414                 .rates = TWL6040_RATES,
1415                 .formats = TWL6040_FORMATS,
1416         },
1417         .capture = {
1418                 .stream_name = "Capture",
1419                 .channels_min = 1,
1420                 .channels_max = 2,
1421                 .rates = TWL6040_RATES,
1422                 .formats = TWL6040_FORMATS,
1423         },
1424         .ops = &twl6040_dai_ops,
1425 },
1426 {
1427         .name = "twl6040-ul",
1428         .capture = {
1429                 .stream_name = "Capture",
1430                 .channels_min = 1,
1431                 .channels_max = 2,
1432                 .rates = TWL6040_RATES,
1433                 .formats = TWL6040_FORMATS,
1434         },
1435         .ops = &twl6040_dai_ops,
1436 },
1437 {
1438         .name = "twl6040-dl1",
1439         .playback = {
1440                 .stream_name = "Headset Playback",
1441                 .channels_min = 1,
1442                 .channels_max = 2,
1443                 .rates = TWL6040_RATES,
1444                 .formats = TWL6040_FORMATS,
1445         },
1446         .ops = &twl6040_dai_ops,
1447 },
1448 {
1449         .name = "twl6040-dl2",
1450         .playback = {
1451                 .stream_name = "Handsfree Playback",
1452                 .channels_min = 1,
1453                 .channels_max = 2,
1454                 .rates = TWL6040_RATES,
1455                 .formats = TWL6040_FORMATS,
1456         },
1457         .ops = &twl6040_dai_ops,
1458 },
1459 {
1460         .name = "twl6040-vib",
1461         .playback = {
1462                 .stream_name = "Vibra Playback",
1463                 .channels_min = 1,
1464                 .channels_max = 1,
1465                 .rates = SNDRV_PCM_RATE_CONTINUOUS,
1466                 .formats = TWL6040_FORMATS,
1467         },
1468         .ops = &twl6040_dai_ops,
1469 },
1470 };
1471
1472 #ifdef CONFIG_PM
1473 static int twl6040_suspend(struct snd_soc_codec *codec, pm_message_t state)
1474 {
1475         twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1476
1477         return 0;
1478 }
1479
1480 static int twl6040_resume(struct snd_soc_codec *codec)
1481 {
1482         twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1483         twl6040_set_bias_level(codec, codec->dapm.suspend_bias_level);
1484
1485         return 0;
1486 }
1487 #else
1488 #define twl6040_suspend NULL
1489 #define twl6040_resume NULL
1490 #endif
1491
1492 static int twl6040_probe(struct snd_soc_codec *codec)
1493 {
1494         struct twl6040_data *priv;
1495         struct twl4030_codec_data *pdata = dev_get_platdata(codec->dev);
1496         struct platform_device *pdev = container_of(codec->dev,
1497                                                    struct platform_device, dev);
1498         int ret = 0;
1499
1500         priv = kzalloc(sizeof(struct twl6040_data), GFP_KERNEL);
1501         if (priv == NULL)
1502                 return -ENOMEM;
1503         snd_soc_codec_set_drvdata(codec, priv);
1504
1505         priv->codec = codec;
1506         codec->control_data = dev_get_drvdata(codec->dev->parent);
1507
1508         if (pdata && pdata->hs_left_step && pdata->hs_right_step) {
1509                 priv->hs_left_step = pdata->hs_left_step;
1510                 priv->hs_right_step = pdata->hs_right_step;
1511         } else {
1512                 priv->hs_left_step = 1;
1513                 priv->hs_right_step = 1;
1514         }
1515
1516         if (pdata && pdata->hf_left_step && pdata->hf_right_step) {
1517                 priv->hf_left_step = pdata->hf_left_step;
1518                 priv->hf_right_step = pdata->hf_right_step;
1519         } else {
1520                 priv->hf_left_step = 1;
1521                 priv->hf_right_step = 1;
1522         }
1523
1524         priv->plug_irq = platform_get_irq(pdev, 0);
1525         if (priv->plug_irq < 0) {
1526                 dev_err(codec->dev, "invalid irq\n");
1527                 ret = -EINVAL;
1528                 goto work_err;
1529         }
1530
1531         priv->workqueue = create_singlethread_workqueue("twl6040-codec");
1532         if (!priv->workqueue) {
1533                 ret = -ENOMEM;
1534                 goto work_err;
1535         }
1536
1537         INIT_DELAYED_WORK(&priv->hs_jack.work, twl6040_accessory_work);
1538
1539         mutex_init(&priv->mutex);
1540
1541         init_completion(&priv->headset.ramp_done);
1542         init_completion(&priv->handsfree.ramp_done);
1543
1544         priv->hf_workqueue = create_singlethread_workqueue("twl6040-hf");
1545         if (priv->hf_workqueue == NULL) {
1546                 ret = -ENOMEM;
1547                 goto hfwq_err;
1548         }
1549         priv->hs_workqueue = create_singlethread_workqueue("twl6040-hs");
1550         if (priv->hs_workqueue == NULL) {
1551                 ret = -ENOMEM;
1552                 goto hswq_err;
1553         }
1554
1555         INIT_DELAYED_WORK(&priv->headset.work, twl6040_pga_hs_work);
1556         INIT_DELAYED_WORK(&priv->handsfree.work, twl6040_pga_hf_work);
1557
1558         ret = request_threaded_irq(priv->plug_irq, NULL, twl6040_audio_handler,
1559                                    0, "twl6040_irq_plug", codec);
1560         if (ret) {
1561                 dev_err(codec->dev, "PLUG IRQ request failed: %d\n", ret);
1562                 goto plugirq_err;
1563         }
1564
1565         twl6040_init_chip(codec);
1566
1567         /* power on device */
1568         ret = twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1569         if (ret)
1570                 goto bias_err;
1571
1572         snd_soc_add_controls(codec, twl6040_snd_controls,
1573                                 ARRAY_SIZE(twl6040_snd_controls));
1574         twl6040_add_widgets(codec);
1575
1576         return 0;
1577
1578 bias_err:
1579         free_irq(priv->plug_irq, codec);
1580 plugirq_err:
1581         destroy_workqueue(priv->hs_workqueue);
1582 hswq_err:
1583         destroy_workqueue(priv->hf_workqueue);
1584 hfwq_err:
1585         destroy_workqueue(priv->workqueue);
1586 work_err:
1587         kfree(priv);
1588         return ret;
1589 }
1590
1591 static int twl6040_remove(struct snd_soc_codec *codec)
1592 {
1593         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1594
1595         twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1596         free_irq(priv->plug_irq, codec);
1597         destroy_workqueue(priv->workqueue);
1598         destroy_workqueue(priv->hf_workqueue);
1599         destroy_workqueue(priv->hs_workqueue);
1600         kfree(priv);
1601
1602         return 0;
1603 }
1604
1605 static struct snd_soc_codec_driver soc_codec_dev_twl6040 = {
1606         .probe = twl6040_probe,
1607         .remove = twl6040_remove,
1608         .suspend = twl6040_suspend,
1609         .resume = twl6040_resume,
1610         .read = twl6040_read_reg_cache,
1611         .write = twl6040_write,
1612         .set_bias_level = twl6040_set_bias_level,
1613         .reg_cache_size = ARRAY_SIZE(twl6040_reg),
1614         .reg_word_size = sizeof(u8),
1615         .reg_cache_default = twl6040_reg,
1616 };
1617
1618 static int __devinit twl6040_codec_probe(struct platform_device *pdev)
1619 {
1620         return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_twl6040,
1621                                       twl6040_dai, ARRAY_SIZE(twl6040_dai));
1622 }
1623
1624 static int __devexit twl6040_codec_remove(struct platform_device *pdev)
1625 {
1626         snd_soc_unregister_codec(&pdev->dev);
1627         return 0;
1628 }
1629
1630 static struct platform_driver twl6040_codec_driver = {
1631         .driver = {
1632                 .name = "twl6040-codec",
1633                 .owner = THIS_MODULE,
1634         },
1635         .probe = twl6040_codec_probe,
1636         .remove = __devexit_p(twl6040_codec_remove),
1637 };
1638
1639 static int __init twl6040_codec_init(void)
1640 {
1641         return platform_driver_register(&twl6040_codec_driver);
1642 }
1643 module_init(twl6040_codec_init);
1644
1645 static void __exit twl6040_codec_exit(void)
1646 {
1647         platform_driver_unregister(&twl6040_codec_driver);
1648 }
1649 module_exit(twl6040_codec_exit);
1650
1651 MODULE_DESCRIPTION("ASoC TWL6040 codec driver");
1652 MODULE_AUTHOR("Misael Lopez Cruz");
1653 MODULE_LICENSE("GPL");