sound/soc/codecs/da7219-aad.c

   1 /*
   2  * da7219-aad.c - Dialog DA7219 ALSA SoC AAD Driver
   3  *
   4  * Copyright (c) 2015 Dialog Semiconductor Ltd.
   5  *
   6  * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
   7  *
   8  * This program is free software; you can redistribute  it and/or modify it
   9  * under  the terms of  the GNU General  Public License as published by the
  10  * Free Software Foundation;  either version 2 of the  License, or (at your
  11  * option) any later version.
  12  */
  13
  14 #include <linux/module.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/clk.h>
  17 #include <linux/i2c.h>
  18 #include <linux/property.h>
  19 #include <linux/pm_wakeirq.h>
  20 #include <linux/slab.h>
  21 #include <linux/delay.h>
  22 #include <linux/workqueue.h>
  23 #include <sound/soc.h>
  24 #include <sound/jack.h>
  25 #include <sound/da7219.h>
  26
  27 #include "da7219.h"
  28 #include "da7219-aad.h"
  29
  30
  31 /*
  32  * Detection control
  33  */
  34
  35 void da7219_aad_jack_det(struct snd_soc_codec *codec, struct snd_soc_jack *jack)
  36 {
  37         struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
  38
  39         da7219->aad->jack = jack;
  40         da7219->aad->jack_inserted = false;
  41
  42         /* Send an initial empty report */
  43         snd_soc_jack_report(jack, 0, DA7219_AAD_REPORT_ALL_MASK);
  44
  45         /* Enable/Disable jack detection */
  46         snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1,
  47                             DA7219_ACCDET_EN_MASK,
  48                             (jack ? DA7219_ACCDET_EN_MASK : 0));
  49 }
  50 EXPORT_SYMBOL_GPL(da7219_aad_jack_det);
  51
  52 /*
  53  * Button/HPTest work
  54  */
  55
  56 static void da7219_aad_btn_det_work(struct work_struct *work)
  57 {
  58         struct da7219_aad_priv *da7219_aad =
  59                 container_of(work, struct da7219_aad_priv, btn_det_work);
  60         struct snd_soc_codec *codec = da7219_aad->codec;
  61         struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
  62         u8 statusa, micbias_ctrl;
  63         bool micbias_up = false;
  64         int retries = 0;
  65
  66         /* Drive headphones/lineout */
  67         snd_soc_update_bits(codec, DA7219_HP_L_CTRL,
  68                             DA7219_HP_L_AMP_OE_MASK,
  69                             DA7219_HP_L_AMP_OE_MASK);
  70         snd_soc_update_bits(codec, DA7219_HP_R_CTRL,
  71                             DA7219_HP_R_AMP_OE_MASK,
  72                             DA7219_HP_R_AMP_OE_MASK);
  73
  74         /* Make sure mic bias is up */
  75         snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
  76         snd_soc_dapm_sync(dapm);
  77
  78         do {
  79                 statusa = snd_soc_read(codec, DA7219_ACCDET_STATUS_A);
  80                 if (statusa & DA7219_MICBIAS_UP_STS_MASK)
  81                         micbias_up = true;
  82                 else if (retries++ < DA7219_AAD_MICBIAS_CHK_RETRIES)
  83                         msleep(DA7219_AAD_MICBIAS_CHK_DELAY);
  84         } while ((!micbias_up) && (retries < DA7219_AAD_MICBIAS_CHK_RETRIES));
  85
  86         if (retries >= DA7219_AAD_MICBIAS_CHK_RETRIES)
  87                 dev_warn(codec->dev, "Mic bias status check timed out");
  88
  89         /*
  90          * Mic bias pulse required to enable mic, must be done before enabling
  91          * button detection to prevent erroneous button readings.
  92          */
  93         if (da7219_aad->micbias_pulse_lvl && da7219_aad->micbias_pulse_time) {
  94                 /* Pulse higher level voltage */
  95                 micbias_ctrl = snd_soc_read(codec, DA7219_MICBIAS_CTRL);
  96                 snd_soc_update_bits(codec, DA7219_MICBIAS_CTRL,
  97                                     DA7219_MICBIAS1_LEVEL_MASK,
  98                                     da7219_aad->micbias_pulse_lvl);
  99                 msleep(da7219_aad->micbias_pulse_time);
 100                 snd_soc_write(codec, DA7219_MICBIAS_CTRL, micbias_ctrl);
 101
 102         }
 103
 104         snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1,
 105                             DA7219_BUTTON_CONFIG_MASK,
 106                             da7219_aad->btn_cfg);
 107 }
 108
 109 static void da7219_aad_hptest_work(struct work_struct *work)
 110 {
 111         struct da7219_aad_priv *da7219_aad =
 112                 container_of(work, struct da7219_aad_priv, hptest_work);
 113         struct snd_soc_codec *codec = da7219_aad->codec;
 114         struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
 115         struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
 116
 117         u16 tonegen_freq_hptest;
 118         u8 accdet_cfg8;
 119         int report = 0, ret = 0;
 120
 121         /* Lock DAPM and any Kcontrols that are affected by this test */
 122         snd_soc_dapm_mutex_lock(dapm);
 123         mutex_lock(&da7219->lock);
 124
 125         /* Ensure MCLK is available for HP test procedure */
 126         if (da7219->mclk) {
 127                 ret = clk_prepare_enable(da7219->mclk);
 128                 if (ret) {
 129                         dev_err(codec->dev, "Failed to enable mclk - %d\n", ret);
 130                         mutex_unlock(&da7219->lock);
 131                         snd_soc_dapm_mutex_unlock(dapm);
 132                         return;
 133                 }
 134         }
 135
 136         /* Bypass cache so it saves current settings */
 137         regcache_cache_bypass(da7219->regmap, true);
 138
 139         /* Make sure Tone Generator is disabled */
 140         snd_soc_write(codec, DA7219_TONE_GEN_CFG1, 0);
 141
 142         /* Enable HPTest block, 1KOhms check */
 143         snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_8,
 144                             DA7219_HPTEST_EN_MASK | DA7219_HPTEST_RES_SEL_MASK,
 145                             DA7219_HPTEST_EN_MASK |
 146                             DA7219_HPTEST_RES_SEL_1KOHMS);
 147
 148         /* Set gains to 0db */
 149         snd_soc_write(codec, DA7219_DAC_L_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB);
 150         snd_soc_write(codec, DA7219_DAC_R_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB);
 151         snd_soc_write(codec, DA7219_HP_L_GAIN, DA7219_HP_AMP_GAIN_0DB);
 152         snd_soc_write(codec, DA7219_HP_R_GAIN, DA7219_HP_AMP_GAIN_0DB);
 153
 154         /* Disable DAC filters, EQs and soft mute */
 155         snd_soc_update_bits(codec, DA7219_DAC_FILTERS1, DA7219_HPF_MODE_MASK,
 156                             0);
 157         snd_soc_update_bits(codec, DA7219_DAC_FILTERS4, DA7219_DAC_EQ_EN_MASK,
 158                             0);
 159         snd_soc_update_bits(codec, DA7219_DAC_FILTERS5,
 160                             DA7219_DAC_SOFTMUTE_EN_MASK, 0);
 161
 162         /* Enable HP left & right paths */
 163         snd_soc_update_bits(codec, DA7219_CP_CTRL, DA7219_CP_EN_MASK,
 164                             DA7219_CP_EN_MASK);
 165         snd_soc_update_bits(codec, DA7219_DIG_ROUTING_DAC,
 166                             DA7219_DAC_L_SRC_MASK | DA7219_DAC_R_SRC_MASK,
 167                             DA7219_DAC_L_SRC_TONEGEN |
 168                             DA7219_DAC_R_SRC_TONEGEN);
 169         snd_soc_update_bits(codec, DA7219_DAC_L_CTRL,
 170                             DA7219_DAC_L_EN_MASK | DA7219_DAC_L_MUTE_EN_MASK,
 171                             DA7219_DAC_L_EN_MASK);
 172         snd_soc_update_bits(codec, DA7219_DAC_R_CTRL,
 173                             DA7219_DAC_R_EN_MASK | DA7219_DAC_R_MUTE_EN_MASK,
 174                             DA7219_DAC_R_EN_MASK);
 175         snd_soc_update_bits(codec, DA7219_MIXOUT_L_SELECT,
 176                             DA7219_MIXOUT_L_MIX_SELECT_MASK,
 177                             DA7219_MIXOUT_L_MIX_SELECT_MASK);
 178         snd_soc_update_bits(codec, DA7219_MIXOUT_R_SELECT,
 179                             DA7219_MIXOUT_R_MIX_SELECT_MASK,
 180                             DA7219_MIXOUT_R_MIX_SELECT_MASK);
 181         snd_soc_update_bits(codec, DA7219_DROUTING_ST_OUTFILT_1L,
 182                             DA7219_OUTFILT_ST_1L_SRC_MASK,
 183                             DA7219_DMIX_ST_SRC_OUTFILT1L);
 184         snd_soc_update_bits(codec, DA7219_DROUTING_ST_OUTFILT_1R,
 185                             DA7219_OUTFILT_ST_1R_SRC_MASK,
 186                             DA7219_DMIX_ST_SRC_OUTFILT1R);
 187         snd_soc_update_bits(codec, DA7219_MIXOUT_L_CTRL,
 188                             DA7219_MIXOUT_L_AMP_EN_MASK,
 189                             DA7219_MIXOUT_L_AMP_EN_MASK);
 190         snd_soc_update_bits(codec, DA7219_MIXOUT_R_CTRL,
 191                             DA7219_MIXOUT_R_AMP_EN_MASK,
 192                             DA7219_MIXOUT_R_AMP_EN_MASK);
 193         snd_soc_write(codec, DA7219_HP_L_CTRL,
 194                       DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK);
 195         snd_soc_write(codec, DA7219_HP_R_CTRL,
 196                       DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK);
 197
 198         /* Configure & start Tone Generator */
 199         snd_soc_write(codec, DA7219_TONE_GEN_ON_PER, DA7219_BEEP_ON_PER_MASK);
 200         tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ);
 201         regmap_raw_write(da7219->regmap, DA7219_TONE_GEN_FREQ1_L,
 202                          &tonegen_freq_hptest, sizeof(tonegen_freq_hptest));
 203         snd_soc_update_bits(codec, DA7219_TONE_GEN_CFG2,
 204                             DA7219_SWG_SEL_MASK | DA7219_TONE_GEN_GAIN_MASK,
 205                             DA7219_SWG_SEL_SRAMP |
 206                             DA7219_TONE_GEN_GAIN_MINUS_15DB);
 207         snd_soc_write(codec, DA7219_TONE_GEN_CFG1, DA7219_START_STOPN_MASK);
 208
 209         msleep(DA7219_AAD_HPTEST_PERIOD);
 210
 211         /* Grab comparator reading */
 212         accdet_cfg8 = snd_soc_read(codec, DA7219_ACCDET_CONFIG_8);
 213         if (accdet_cfg8 & DA7219_HPTEST_COMP_MASK)
 214                 report |= SND_JACK_HEADPHONE;
 215         else
 216                 report |= SND_JACK_LINEOUT;
 217
 218         /* Stop tone generator */
 219         snd_soc_write(codec, DA7219_TONE_GEN_CFG1, 0);
 220
 221         msleep(DA7219_AAD_HPTEST_PERIOD);
 222
 223         /* Restore original settings from cache */
 224         regcache_mark_dirty(da7219->regmap);
 225         regcache_sync_region(da7219->regmap, DA7219_HP_L_CTRL,
 226                              DA7219_HP_R_CTRL);
 227         regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_CTRL,
 228                              DA7219_MIXOUT_R_CTRL);
 229         regcache_sync_region(da7219->regmap, DA7219_DROUTING_ST_OUTFILT_1L,
 230                              DA7219_DROUTING_ST_OUTFILT_1R);
 231         regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_SELECT,
 232                              DA7219_MIXOUT_R_SELECT);
 233         regcache_sync_region(da7219->regmap, DA7219_DAC_L_CTRL,
 234                              DA7219_DAC_R_CTRL);
 235         regcache_sync_region(da7219->regmap, DA7219_DIG_ROUTING_DAC,
 236                              DA7219_DIG_ROUTING_DAC);
 237         regcache_sync_region(da7219->regmap, DA7219_CP_CTRL, DA7219_CP_CTRL);
 238         regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS5,
 239                              DA7219_DAC_FILTERS5);
 240         regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS4,
 241                              DA7219_DAC_FILTERS1);
 242         regcache_sync_region(da7219->regmap, DA7219_HP_L_GAIN,
 243                              DA7219_HP_R_GAIN);
 244         regcache_sync_region(da7219->regmap, DA7219_DAC_L_GAIN,
 245                              DA7219_DAC_R_GAIN);
 246         regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_ON_PER,
 247                              DA7219_TONE_GEN_ON_PER);
 248         regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_FREQ1_L,
 249                              DA7219_TONE_GEN_FREQ1_U);
 250         regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_CFG1,
 251                              DA7219_TONE_GEN_CFG2);
 252
 253         regcache_cache_bypass(da7219->regmap, false);
 254
 255         /* Disable HPTest block */
 256         snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_8,
 257                             DA7219_HPTEST_EN_MASK, 0);
 258
 259         /* Drive Headphones/lineout */
 260         snd_soc_update_bits(codec, DA7219_HP_L_CTRL, DA7219_HP_L_AMP_OE_MASK,
 261                             DA7219_HP_L_AMP_OE_MASK);
 262         snd_soc_update_bits(codec, DA7219_HP_R_CTRL, DA7219_HP_R_AMP_OE_MASK,
 263                             DA7219_HP_R_AMP_OE_MASK);
 264
 265         /* Remove MCLK, if previously enabled */
 266         if (da7219->mclk)
 267                 clk_disable_unprepare(da7219->mclk);
 268
 269         mutex_unlock(&da7219->lock);
 270         snd_soc_dapm_mutex_unlock(dapm);
 271
 272         /*
 273          * Only send report if jack hasn't been removed during process,
 274          * otherwise it's invalid and we drop it.
 275          */
 276         if (da7219_aad->jack_inserted)
 277                 snd_soc_jack_report(da7219_aad->jack, report,
 278                                     SND_JACK_HEADSET | SND_JACK_LINEOUT);
 279 }
 280
 281
 282 /*
 283  * IRQ
 284  */
 285
 286 static irqreturn_t da7219_aad_irq_thread(int irq, void *data)
 287 {
 288         struct da7219_aad_priv *da7219_aad = data;
 289         struct snd_soc_codec *codec = da7219_aad->codec;
 290         struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
 291         struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
 292         u8 events[DA7219_AAD_IRQ_REG_MAX];
 293         u8 statusa;
 294         int i, report = 0, mask = 0;
 295
 296         /* Read current IRQ events */
 297         regmap_bulk_read(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A,
 298                          events, DA7219_AAD_IRQ_REG_MAX);
 299
 300         if (!events[DA7219_AAD_IRQ_REG_A] && !events[DA7219_AAD_IRQ_REG_B])
 301                 return IRQ_NONE;
 302
 303         /* Read status register for jack insertion & type status */
 304         statusa = snd_soc_read(codec, DA7219_ACCDET_STATUS_A);
 305
 306         /* Clear events */
 307         regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A,
 308                           events, DA7219_AAD_IRQ_REG_MAX);
 309
 310         dev_dbg(codec->dev, "IRQ events = 0x%x|0x%x, status = 0x%x\n",
 311                 events[DA7219_AAD_IRQ_REG_A], events[DA7219_AAD_IRQ_REG_B],
 312                 statusa);
 313
 314         if (statusa & DA7219_JACK_INSERTION_STS_MASK) {
 315                 /* Jack Insertion */
 316                 if (events[DA7219_AAD_IRQ_REG_A] &
 317                     DA7219_E_JACK_INSERTED_MASK) {
 318                         report |= SND_JACK_MECHANICAL;
 319                         mask |= SND_JACK_MECHANICAL;
 320                         da7219_aad->jack_inserted = true;
 321                 }
 322
 323                 /* Jack type detection */
 324                 if (events[DA7219_AAD_IRQ_REG_A] &
 325                     DA7219_E_JACK_DETECT_COMPLETE_MASK) {
 326                         /*
 327                          * If 4-pole, then enable button detection, else perform
 328                          * HP impedance test to determine output type to report.
 329                          *
 330                          * We schedule work here as the tasks themselves can
 331                          * take time to complete, and in particular for hptest
 332                          * we want to be able to check if the jack was removed
 333                          * during the procedure as this will invalidate the
 334                          * result. By doing this as work, the IRQ thread can
 335                          * handle a removal, and we can check at the end of
 336                          * hptest if we have a valid result or not.
 337                          */
 338                         if (statusa & DA7219_JACK_TYPE_STS_MASK) {
 339                                 report |= SND_JACK_HEADSET;
 340                                 mask |= SND_JACK_HEADSET | SND_JACK_LINEOUT;
 341                                 schedule_work(&da7219_aad->btn_det_work);
 342                         } else {
 343                                 schedule_work(&da7219_aad->hptest_work);
 344                         }
 345                 }
 346
 347                 /* Button support for 4-pole jack */
 348                 if (statusa & DA7219_JACK_TYPE_STS_MASK) {
 349                         for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) {
 350                                 /* Button Press */
 351                                 if (events[DA7219_AAD_IRQ_REG_B] &
 352                                     (DA7219_E_BUTTON_A_PRESSED_MASK << i)) {
 353                                         report |= SND_JACK_BTN_0 >> i;
 354                                         mask |= SND_JACK_BTN_0 >> i;
 355                                 }
 356                         }
 357                         snd_soc_jack_report(da7219_aad->jack, report, mask);
 358
 359                         for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) {
 360                                 /* Button Release */
 361                                 if (events[DA7219_AAD_IRQ_REG_B] &
 362                                     (DA7219_E_BUTTON_A_RELEASED_MASK >> i)) {
 363                                         report &= ~(SND_JACK_BTN_0 >> i);
 364                                         mask |= SND_JACK_BTN_0 >> i;
 365                                 }
 366                         }
 367                 }
 368         } else {
 369                 /* Jack removal */
 370                 if (events[DA7219_AAD_IRQ_REG_A] & DA7219_E_JACK_REMOVED_MASK) {
 371                         report = 0;
 372                         mask |= DA7219_AAD_REPORT_ALL_MASK;
 373                         da7219_aad->jack_inserted = false;
 374
 375                         /* Un-drive headphones/lineout */
 376                         snd_soc_update_bits(codec, DA7219_HP_R_CTRL,
 377                                             DA7219_HP_R_AMP_OE_MASK, 0);
 378                         snd_soc_update_bits(codec, DA7219_HP_L_CTRL,
 379                                             DA7219_HP_L_AMP_OE_MASK, 0);
 380
 381                         /* Ensure button detection disabled */
 382                         snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1,
 383                                             DA7219_BUTTON_CONFIG_MASK, 0);
 384
 385                         /* Disable mic bias */
 386                         snd_soc_dapm_disable_pin(dapm, "Mic Bias");
 387                         snd_soc_dapm_sync(dapm);
 388
 389                         /* Cancel any pending work */
 390                         cancel_work_sync(&da7219_aad->btn_det_work);
 391                         cancel_work_sync(&da7219_aad->hptest_work);
 392                 }
 393         }
 394
 395         snd_soc_jack_report(da7219_aad->jack, report, mask);
 396
 397         return IRQ_HANDLED;
 398 }
 399
 400 /*
 401  * DT/ACPI to pdata conversion
 402  */
 403
 404 static enum da7219_aad_micbias_pulse_lvl
 405         da7219_aad_fw_micbias_pulse_lvl(struct snd_soc_codec *codec, u32 val)
 406 {
 407         switch (val) {
 408         case 2800:
 409                 return DA7219_AAD_MICBIAS_PULSE_LVL_2_8V;
 410         case 2900:
 411                 return DA7219_AAD_MICBIAS_PULSE_LVL_2_9V;
 412         default:
 413                 dev_warn(codec->dev, "Invalid micbias pulse level");
 414                 return DA7219_AAD_MICBIAS_PULSE_LVL_OFF;
 415         }
 416 }
 417
 418 static enum da7219_aad_btn_cfg
 419         da7219_aad_fw_btn_cfg(struct snd_soc_codec *codec, u32 val)
 420 {
 421         switch (val) {
 422         case 2:
 423                 return DA7219_AAD_BTN_CFG_2MS;
 424         case 5:
 425                 return DA7219_AAD_BTN_CFG_5MS;
 426         case 10:
 427                 return DA7219_AAD_BTN_CFG_10MS;
 428         case 50:
 429                 return DA7219_AAD_BTN_CFG_50MS;
 430         case 100:
 431                 return DA7219_AAD_BTN_CFG_100MS;
 432         case 200:
 433                 return DA7219_AAD_BTN_CFG_200MS;
 434         case 500:
 435                 return DA7219_AAD_BTN_CFG_500MS;
 436         default:
 437                 dev_warn(codec->dev, "Invalid button config");
 438                 return DA7219_AAD_BTN_CFG_10MS;
 439         }
 440 }
 441
 442 static enum da7219_aad_mic_det_thr
 443         da7219_aad_fw_mic_det_thr(struct snd_soc_codec *codec, u32 val)
 444 {
 445         switch (val) {
 446         case 200:
 447                 return DA7219_AAD_MIC_DET_THR_200_OHMS;
 448         case 500:
 449                 return DA7219_AAD_MIC_DET_THR_500_OHMS;
 450         case 750:
 451                 return DA7219_AAD_MIC_DET_THR_750_OHMS;
 452         case 1000:
 453                 return DA7219_AAD_MIC_DET_THR_1000_OHMS;
 454         default:
 455                 dev_warn(codec->dev, "Invalid mic detect threshold");
 456                 return DA7219_AAD_MIC_DET_THR_500_OHMS;
 457         }
 458 }
 459
 460 static enum da7219_aad_jack_ins_deb
 461         da7219_aad_fw_jack_ins_deb(struct snd_soc_codec *codec, u32 val)
 462 {
 463         switch (val) {
 464         case 5:
 465                 return DA7219_AAD_JACK_INS_DEB_5MS;
 466         case 10:
 467                 return DA7219_AAD_JACK_INS_DEB_10MS;
 468         case 20:
 469                 return DA7219_AAD_JACK_INS_DEB_20MS;
 470         case 50:
 471                 return DA7219_AAD_JACK_INS_DEB_50MS;
 472         case 100:
 473                 return DA7219_AAD_JACK_INS_DEB_100MS;
 474         case 200:
 475                 return DA7219_AAD_JACK_INS_DEB_200MS;
 476         case 500:
 477                 return DA7219_AAD_JACK_INS_DEB_500MS;
 478         case 1000:
 479                 return DA7219_AAD_JACK_INS_DEB_1S;
 480         default:
 481                 dev_warn(codec->dev, "Invalid jack insert debounce");
 482                 return DA7219_AAD_JACK_INS_DEB_20MS;
 483         }
 484 }
 485
 486 static enum da7219_aad_jack_det_rate
 487         da7219_aad_fw_jack_det_rate(struct snd_soc_codec *codec, const char *str)
 488 {
 489         if (!strcmp(str, "32ms_64ms")) {
 490                 return DA7219_AAD_JACK_DET_RATE_32_64MS;
 491         } else if (!strcmp(str, "64ms_128ms")) {
 492                 return DA7219_AAD_JACK_DET_RATE_64_128MS;
 493         } else if (!strcmp(str, "128ms_256ms")) {
 494                 return DA7219_AAD_JACK_DET_RATE_128_256MS;
 495         } else if (!strcmp(str, "256ms_512ms")) {
 496                 return DA7219_AAD_JACK_DET_RATE_256_512MS;
 497         } else {
 498                 dev_warn(codec->dev, "Invalid jack detect rate");
 499                 return DA7219_AAD_JACK_DET_RATE_256_512MS;
 500         }
 501 }
 502
 503 static enum da7219_aad_jack_rem_deb
 504         da7219_aad_fw_jack_rem_deb(struct snd_soc_codec *codec, u32 val)
 505 {
 506         switch (val) {
 507         case 1:
 508                 return DA7219_AAD_JACK_REM_DEB_1MS;
 509         case 5:
 510                 return DA7219_AAD_JACK_REM_DEB_5MS;
 511         case 10:
 512                 return DA7219_AAD_JACK_REM_DEB_10MS;
 513         case 20:
 514                 return DA7219_AAD_JACK_REM_DEB_20MS;
 515         default:
 516                 dev_warn(codec->dev, "Invalid jack removal debounce");
 517                 return DA7219_AAD_JACK_REM_DEB_1MS;
 518         }
 519 }
 520
 521 static enum da7219_aad_btn_avg
 522         da7219_aad_fw_btn_avg(struct snd_soc_codec *codec, u32 val)
 523 {
 524         switch (val) {
 525         case 1:
 526                 return DA7219_AAD_BTN_AVG_1;
 527         case 2:
 528                 return DA7219_AAD_BTN_AVG_2;
 529         case 4:
 530                 return DA7219_AAD_BTN_AVG_4;
 531         case 8:
 532                 return DA7219_AAD_BTN_AVG_8;
 533         default:
 534                 dev_warn(codec->dev, "Invalid button average value");
 535                 return DA7219_AAD_BTN_AVG_2;
 536         }
 537 }
 538
 539 static enum da7219_aad_adc_1bit_rpt
 540         da7219_aad_fw_adc_1bit_rpt(struct snd_soc_codec *codec, u32 val)
 541 {
 542         switch (val) {
 543         case 1:
 544                 return DA7219_AAD_ADC_1BIT_RPT_1;
 545         case 2:
 546                 return DA7219_AAD_ADC_1BIT_RPT_2;
 547         case 4:
 548                 return DA7219_AAD_ADC_1BIT_RPT_4;
 549         case 8:
 550                 return DA7219_AAD_ADC_1BIT_RPT_8;
 551         default:
 552                 dev_warn(codec->dev, "Invalid ADC 1-bit repeat value");
 553                 return DA7219_AAD_ADC_1BIT_RPT_1;
 554         }
 555 }
 556
 557 static struct da7219_aad_pdata *da7219_aad_fw_to_pdata(struct snd_soc_codec *codec)
 558 {
 559         struct device *dev = codec->dev;
 560         struct i2c_client *i2c = to_i2c_client(dev);
 561         struct fwnode_handle *aad_np;
 562         struct da7219_aad_pdata *aad_pdata;
 563         const char *fw_str;
 564         u32 fw_val32;
 565
 566         aad_np = device_get_named_child_node(dev, "da7219_aad");
 567         if (!aad_np)
 568                 return NULL;
 569
 570         aad_pdata = devm_kzalloc(codec->dev, sizeof(*aad_pdata), GFP_KERNEL);
 571         if (!aad_pdata)
 572                 return NULL;
 573
 574         aad_pdata->irq = i2c->irq;
 575
 576         if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-lvl",
 577                                      &fw_val32) >= 0)
 578                 aad_pdata->micbias_pulse_lvl =
 579                         da7219_aad_fw_micbias_pulse_lvl(codec, fw_val32);
 580         else
 581                 aad_pdata->micbias_pulse_lvl = DA7219_AAD_MICBIAS_PULSE_LVL_OFF;
 582
 583         if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-time",
 584                                      &fw_val32) >= 0)
 585                 aad_pdata->micbias_pulse_time = fw_val32;
 586
 587         if (fwnode_property_read_u32(aad_np, "dlg,btn-cfg", &fw_val32) >= 0)
 588                 aad_pdata->btn_cfg = da7219_aad_fw_btn_cfg(codec, fw_val32);
 589         else
 590                 aad_pdata->btn_cfg = DA7219_AAD_BTN_CFG_10MS;
 591
 592         if (fwnode_property_read_u32(aad_np, "dlg,mic-det-thr", &fw_val32) >= 0)
 593                 aad_pdata->mic_det_thr =
 594                         da7219_aad_fw_mic_det_thr(codec, fw_val32);
 595         else
 596                 aad_pdata->mic_det_thr = DA7219_AAD_MIC_DET_THR_500_OHMS;
 597
 598         if (fwnode_property_read_u32(aad_np, "dlg,jack-ins-deb", &fw_val32) >= 0)
 599                 aad_pdata->jack_ins_deb =
 600                         da7219_aad_fw_jack_ins_deb(codec, fw_val32);
 601         else
 602                 aad_pdata->jack_ins_deb = DA7219_AAD_JACK_INS_DEB_20MS;
 603
 604         if (!fwnode_property_read_string(aad_np, "dlg,jack-det-rate", &fw_str))
 605                 aad_pdata->jack_det_rate =
 606                         da7219_aad_fw_jack_det_rate(codec, fw_str);
 607         else
 608                 aad_pdata->jack_det_rate = DA7219_AAD_JACK_DET_RATE_256_512MS;
 609
 610         if (fwnode_property_read_u32(aad_np, "dlg,jack-rem-deb", &fw_val32) >= 0)
 611                 aad_pdata->jack_rem_deb =
 612                         da7219_aad_fw_jack_rem_deb(codec, fw_val32);
 613         else
 614                 aad_pdata->jack_rem_deb = DA7219_AAD_JACK_REM_DEB_1MS;
 615
 616         if (fwnode_property_read_u32(aad_np, "dlg,a-d-btn-thr", &fw_val32) >= 0)
 617                 aad_pdata->a_d_btn_thr = (u8) fw_val32;
 618         else
 619                 aad_pdata->a_d_btn_thr = 0xA;
 620
 621         if (fwnode_property_read_u32(aad_np, "dlg,d-b-btn-thr", &fw_val32) >= 0)
 622                 aad_pdata->d_b_btn_thr = (u8) fw_val32;
 623         else
 624                 aad_pdata->d_b_btn_thr = 0x16;
 625
 626         if (fwnode_property_read_u32(aad_np, "dlg,b-c-btn-thr", &fw_val32) >= 0)
 627                 aad_pdata->b_c_btn_thr = (u8) fw_val32;
 628         else
 629                 aad_pdata->b_c_btn_thr = 0x21;
 630
 631         if (fwnode_property_read_u32(aad_np, "dlg,c-mic-btn-thr", &fw_val32) >= 0)
 632                 aad_pdata->c_mic_btn_thr = (u8) fw_val32;
 633         else
 634                 aad_pdata->c_mic_btn_thr = 0x3E;
 635
 636         if (fwnode_property_read_u32(aad_np, "dlg,btn-avg", &fw_val32) >= 0)
 637                 aad_pdata->btn_avg = da7219_aad_fw_btn_avg(codec, fw_val32);
 638         else
 639                 aad_pdata->btn_avg = DA7219_AAD_BTN_AVG_2;
 640
 641         if (fwnode_property_read_u32(aad_np, "dlg,adc-1bit-rpt", &fw_val32) >= 0)
 642                 aad_pdata->adc_1bit_rpt =
 643                         da7219_aad_fw_adc_1bit_rpt(codec, fw_val32);
 644         else
 645                 aad_pdata->adc_1bit_rpt = DA7219_AAD_ADC_1BIT_RPT_1;
 646
 647         return aad_pdata;
 648 }
 649
 650 static void da7219_aad_handle_pdata(struct snd_soc_codec *codec)
 651 {
 652         struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
 653         struct da7219_aad_priv *da7219_aad = da7219->aad;
 654         struct da7219_pdata *pdata = da7219->pdata;
 655
 656         if ((pdata) && (pdata->aad_pdata)) {
 657                 struct da7219_aad_pdata *aad_pdata = pdata->aad_pdata;
 658                 u8 cfg, mask;
 659
 660                 da7219_aad->irq = aad_pdata->irq;
 661
 662                 switch (aad_pdata->micbias_pulse_lvl) {
 663                 case DA7219_AAD_MICBIAS_PULSE_LVL_2_8V:
 664                 case DA7219_AAD_MICBIAS_PULSE_LVL_2_9V:
 665                         da7219_aad->micbias_pulse_lvl =
 666                                 (aad_pdata->micbias_pulse_lvl <<
 667                                  DA7219_MICBIAS1_LEVEL_SHIFT);
 668                         break;
 669                 default:
 670                         break;
 671                 }
 672
 673                 da7219_aad->micbias_pulse_time = aad_pdata->micbias_pulse_time;
 674
 675                 switch (aad_pdata->btn_cfg) {
 676                 case DA7219_AAD_BTN_CFG_2MS:
 677                 case DA7219_AAD_BTN_CFG_5MS:
 678                 case DA7219_AAD_BTN_CFG_10MS:
 679                 case DA7219_AAD_BTN_CFG_50MS:
 680                 case DA7219_AAD_BTN_CFG_100MS:
 681                 case DA7219_AAD_BTN_CFG_200MS:
 682                 case DA7219_AAD_BTN_CFG_500MS:
 683                         da7219_aad->btn_cfg  = (aad_pdata->btn_cfg <<
 684                                                 DA7219_BUTTON_CONFIG_SHIFT);
 685                 }
 686
 687                 cfg = 0;
 688                 mask = 0;
 689                 switch (aad_pdata->mic_det_thr) {
 690                 case DA7219_AAD_MIC_DET_THR_200_OHMS:
 691                 case DA7219_AAD_MIC_DET_THR_500_OHMS:
 692                 case DA7219_AAD_MIC_DET_THR_750_OHMS:
 693                 case DA7219_AAD_MIC_DET_THR_1000_OHMS:
 694                         cfg |= (aad_pdata->mic_det_thr <<
 695                                 DA7219_MIC_DET_THRESH_SHIFT);
 696                         mask |= DA7219_MIC_DET_THRESH_MASK;
 697                 }
 698                 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1, mask, cfg);
 699
 700                 cfg = 0;
 701                 mask = 0;
 702                 switch (aad_pdata->jack_ins_deb) {
 703                 case DA7219_AAD_JACK_INS_DEB_5MS:
 704                 case DA7219_AAD_JACK_INS_DEB_10MS:
 705                 case DA7219_AAD_JACK_INS_DEB_20MS:
 706                 case DA7219_AAD_JACK_INS_DEB_50MS:
 707                 case DA7219_AAD_JACK_INS_DEB_100MS:
 708                 case DA7219_AAD_JACK_INS_DEB_200MS:
 709                 case DA7219_AAD_JACK_INS_DEB_500MS:
 710                 case DA7219_AAD_JACK_INS_DEB_1S:
 711                         cfg |= (aad_pdata->jack_ins_deb <<
 712                                 DA7219_JACKDET_DEBOUNCE_SHIFT);
 713                         mask |= DA7219_JACKDET_DEBOUNCE_MASK;
 714                 }
 715                 switch (aad_pdata->jack_det_rate) {
 716                 case DA7219_AAD_JACK_DET_RATE_32_64MS:
 717                 case DA7219_AAD_JACK_DET_RATE_64_128MS:
 718                 case DA7219_AAD_JACK_DET_RATE_128_256MS:
 719                 case DA7219_AAD_JACK_DET_RATE_256_512MS:
 720                         cfg |= (aad_pdata->jack_det_rate <<
 721                                 DA7219_JACK_DETECT_RATE_SHIFT);
 722                         mask |= DA7219_JACK_DETECT_RATE_MASK;
 723                 }
 724                 switch (aad_pdata->jack_rem_deb) {
 725                 case DA7219_AAD_JACK_REM_DEB_1MS:
 726                 case DA7219_AAD_JACK_REM_DEB_5MS:
 727                 case DA7219_AAD_JACK_REM_DEB_10MS:
 728                 case DA7219_AAD_JACK_REM_DEB_20MS:
 729                         cfg |= (aad_pdata->jack_rem_deb <<
 730                                 DA7219_JACKDET_REM_DEB_SHIFT);
 731                         mask |= DA7219_JACKDET_REM_DEB_MASK;
 732                 }
 733                 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_2, mask, cfg);
 734
 735                 snd_soc_write(codec, DA7219_ACCDET_CONFIG_3,
 736                               aad_pdata->a_d_btn_thr);
 737                 snd_soc_write(codec, DA7219_ACCDET_CONFIG_4,
 738                               aad_pdata->d_b_btn_thr);
 739                 snd_soc_write(codec, DA7219_ACCDET_CONFIG_5,
 740                               aad_pdata->b_c_btn_thr);
 741                 snd_soc_write(codec, DA7219_ACCDET_CONFIG_6,
 742                               aad_pdata->c_mic_btn_thr);
 743
 744                 cfg = 0;
 745                 mask = 0;
 746                 switch (aad_pdata->btn_avg) {
 747                 case DA7219_AAD_BTN_AVG_1:
 748                 case DA7219_AAD_BTN_AVG_2:
 749                 case DA7219_AAD_BTN_AVG_4:
 750                 case DA7219_AAD_BTN_AVG_8:
 751                         cfg |= (aad_pdata->btn_avg <<
 752                                 DA7219_BUTTON_AVERAGE_SHIFT);
 753                         mask |= DA7219_BUTTON_AVERAGE_MASK;
 754                 }
 755                 switch (aad_pdata->adc_1bit_rpt) {
 756                 case DA7219_AAD_ADC_1BIT_RPT_1:
 757                 case DA7219_AAD_ADC_1BIT_RPT_2:
 758                 case DA7219_AAD_ADC_1BIT_RPT_4:
 759                 case DA7219_AAD_ADC_1BIT_RPT_8:
 760                         cfg |= (aad_pdata->adc_1bit_rpt <<
 761                                DA7219_ADC_1_BIT_REPEAT_SHIFT);
 762                         mask |= DA7219_ADC_1_BIT_REPEAT_MASK;
 763                 }
 764                 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_7, mask, cfg);
 765         }
 766 }
 767
 768
 769 /*
 770  * Init/Exit
 771  */
 772
 773 int da7219_aad_init(struct snd_soc_codec *codec)
 774 {
 775         struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
 776         struct da7219_aad_priv *da7219_aad;
 777         u8 mask[DA7219_AAD_IRQ_REG_MAX];
 778         int ret;
 779
 780         da7219_aad = devm_kzalloc(codec->dev, sizeof(*da7219_aad), GFP_KERNEL);
 781         if (!da7219_aad)
 782                 return -ENOMEM;
 783
 784         da7219->aad = da7219_aad;
 785         da7219_aad->codec = codec;
 786
 787         /* Handle any DT/ACPI/platform data */
 788         if (da7219->pdata && !da7219->pdata->aad_pdata)
 789                 da7219->pdata->aad_pdata = da7219_aad_fw_to_pdata(codec);
 790
 791         da7219_aad_handle_pdata(codec);
 792
 793         /* Disable button detection */
 794         snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1,
 795                             DA7219_BUTTON_CONFIG_MASK, 0);
 796
 797         INIT_WORK(&da7219_aad->btn_det_work, da7219_aad_btn_det_work);
 798         INIT_WORK(&da7219_aad->hptest_work, da7219_aad_hptest_work);
 799
 800         ret = request_threaded_irq(da7219_aad->irq, NULL,
 801                                    da7219_aad_irq_thread,
 802                                    IRQF_TRIGGER_LOW | IRQF_ONESHOT,
 803                                    "da7219-aad", da7219_aad);
 804         if (ret) {
 805                 dev_err(codec->dev, "Failed to request IRQ: %d\n", ret);
 806                 return ret;
 807         }
 808
 809         /* Unmask AAD IRQs */
 810         memset(mask, 0, DA7219_AAD_IRQ_REG_MAX);
 811         regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A,
 812                           &mask, DA7219_AAD_IRQ_REG_MAX);
 813
 814         return 0;
 815 }
 816 EXPORT_SYMBOL_GPL(da7219_aad_init);
 817
 818 void da7219_aad_exit(struct snd_soc_codec *codec)
 819 {
 820         struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
 821         struct da7219_aad_priv *da7219_aad = da7219->aad;
 822         u8 mask[DA7219_AAD_IRQ_REG_MAX];
 823
 824         /* Mask off AAD IRQs */
 825         memset(mask, DA7219_BYTE_MASK, DA7219_AAD_IRQ_REG_MAX);
 826         regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A,
 827                           mask, DA7219_AAD_IRQ_REG_MAX);
 828
 829         free_irq(da7219_aad->irq, da7219_aad);
 830
 831         cancel_work_sync(&da7219_aad->btn_det_work);
 832         cancel_work_sync(&da7219_aad->hptest_work);
 833 }
 834 EXPORT_SYMBOL_GPL(da7219_aad_exit);
 835
 836 MODULE_DESCRIPTION("ASoC DA7219 AAD Driver");
 837 MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>");
 838 MODULE_LICENSE("GPL");