linux/sound/soc/codecs/wm8903.c
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   1/*
   2 * wm8903.c  --  WM8903 ALSA SoC Audio driver
   3 *
   4 * Copyright 2008-12 Wolfson Microelectronics
   5 * Copyright 2011-2012 NVIDIA, Inc.
   6 *
   7 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
   8 *
   9 * This program is free software; you can redistribute it and/or modify
  10 * it under the terms of the GNU General Public License version 2 as
  11 * published by the Free Software Foundation.
  12 *
  13 * TODO:
  14 *  - TDM mode configuration.
  15 *  - Digital microphone support.
  16 */
  17
  18#include <linux/module.h>
  19#include <linux/moduleparam.h>
  20#include <linux/init.h>
  21#include <linux/completion.h>
  22#include <linux/delay.h>
  23#include <linux/gpio.h>
  24#include <linux/pm.h>
  25#include <linux/i2c.h>
  26#include <linux/regmap.h>
  27#include <linux/slab.h>
  28#include <linux/irq.h>
  29#include <sound/core.h>
  30#include <sound/jack.h>
  31#include <sound/pcm.h>
  32#include <sound/pcm_params.h>
  33#include <sound/tlv.h>
  34#include <sound/soc.h>
  35#include <sound/initval.h>
  36#include <sound/wm8903.h>
  37#include <trace/events/asoc.h>
  38
  39#include "wm8903.h"
  40
  41/* Register defaults at reset */
  42static const struct reg_default wm8903_reg_defaults[] = {
  43        { 4,  0x0018 },     /* R4   - Bias Control 0 */
  44        { 5,  0x0000 },     /* R5   - VMID Control 0 */
  45        { 6,  0x0000 },     /* R6   - Mic Bias Control 0 */
  46        { 8,  0x0001 },     /* R8   - Analogue DAC 0 */
  47        { 10, 0x0001 },     /* R10  - Analogue ADC 0 */
  48        { 12, 0x0000 },     /* R12  - Power Management 0 */
  49        { 13, 0x0000 },     /* R13  - Power Management 1 */
  50        { 14, 0x0000 },     /* R14  - Power Management 2 */
  51        { 15, 0x0000 },     /* R15  - Power Management 3 */
  52        { 16, 0x0000 },     /* R16  - Power Management 4 */
  53        { 17, 0x0000 },     /* R17  - Power Management 5 */
  54        { 18, 0x0000 },     /* R18  - Power Management 6 */
  55        { 20, 0x0400 },     /* R20  - Clock Rates 0 */
  56        { 21, 0x0D07 },     /* R21  - Clock Rates 1 */
  57        { 22, 0x0000 },     /* R22  - Clock Rates 2 */
  58        { 24, 0x0050 },     /* R24  - Audio Interface 0 */
  59        { 25, 0x0242 },     /* R25  - Audio Interface 1 */
  60        { 26, 0x0008 },     /* R26  - Audio Interface 2 */
  61        { 27, 0x0022 },     /* R27  - Audio Interface 3 */
  62        { 30, 0x00C0 },     /* R30  - DAC Digital Volume Left */
  63        { 31, 0x00C0 },     /* R31  - DAC Digital Volume Right */
  64        { 32, 0x0000 },     /* R32  - DAC Digital 0 */
  65        { 33, 0x0000 },     /* R33  - DAC Digital 1 */
  66        { 36, 0x00C0 },     /* R36  - ADC Digital Volume Left */
  67        { 37, 0x00C0 },     /* R37  - ADC Digital Volume Right */
  68        { 38, 0x0000 },     /* R38  - ADC Digital 0 */
  69        { 39, 0x0073 },     /* R39  - Digital Microphone 0 */
  70        { 40, 0x09BF },     /* R40  - DRC 0 */
  71        { 41, 0x3241 },     /* R41  - DRC 1 */
  72        { 42, 0x0020 },     /* R42  - DRC 2 */
  73        { 43, 0x0000 },     /* R43  - DRC 3 */
  74        { 44, 0x0085 },     /* R44  - Analogue Left Input 0 */
  75        { 45, 0x0085 },     /* R45  - Analogue Right Input 0 */
  76        { 46, 0x0044 },     /* R46  - Analogue Left Input 1 */
  77        { 47, 0x0044 },     /* R47  - Analogue Right Input 1 */
  78        { 50, 0x0008 },     /* R50  - Analogue Left Mix 0 */
  79        { 51, 0x0004 },     /* R51  - Analogue Right Mix 0 */
  80        { 52, 0x0000 },     /* R52  - Analogue Spk Mix Left 0 */
  81        { 53, 0x0000 },     /* R53  - Analogue Spk Mix Left 1 */
  82        { 54, 0x0000 },     /* R54  - Analogue Spk Mix Right 0 */
  83        { 55, 0x0000 },     /* R55  - Analogue Spk Mix Right 1 */
  84        { 57, 0x002D },     /* R57  - Analogue OUT1 Left */
  85        { 58, 0x002D },     /* R58  - Analogue OUT1 Right */
  86        { 59, 0x0039 },     /* R59  - Analogue OUT2 Left */
  87        { 60, 0x0039 },     /* R60  - Analogue OUT2 Right */
  88        { 62, 0x0139 },     /* R62  - Analogue OUT3 Left */
  89        { 63, 0x0139 },     /* R63  - Analogue OUT3 Right */
  90        { 64, 0x0000 },     /* R65  - Analogue SPK Output Control 0 */
  91        { 67, 0x0010 },     /* R67  - DC Servo 0 */
  92        { 69, 0x00A4 },     /* R69  - DC Servo 2 */
  93        { 90, 0x0000 },     /* R90  - Analogue HP 0 */
  94        { 94, 0x0000 },     /* R94  - Analogue Lineout 0 */
  95        { 98, 0x0000 },     /* R98  - Charge Pump 0 */
  96        { 104, 0x0000 },    /* R104 - Class W 0 */
  97        { 108, 0x0000 },    /* R108 - Write Sequencer 0 */
  98        { 109, 0x0000 },    /* R109 - Write Sequencer 1 */
  99        { 110, 0x0000 },    /* R110 - Write Sequencer 2 */
 100        { 111, 0x0000 },    /* R111 - Write Sequencer 3 */
 101        { 112, 0x0000 },    /* R112 - Write Sequencer 4 */
 102        { 114, 0x0000 },    /* R114 - Control Interface */
 103        { 116, 0x00A8 },    /* R116 - GPIO Control 1 */
 104        { 117, 0x00A8 },    /* R117 - GPIO Control 2 */
 105        { 118, 0x00A8 },    /* R118 - GPIO Control 3 */
 106        { 119, 0x0220 },    /* R119 - GPIO Control 4 */
 107        { 120, 0x01A0 },    /* R120 - GPIO Control 5 */
 108        { 122, 0xFFFF },    /* R122 - Interrupt Status 1 Mask */
 109        { 123, 0x0000 },    /* R123 - Interrupt Polarity 1 */
 110        { 126, 0x0000 },    /* R126 - Interrupt Control */
 111        { 129, 0x0000 },    /* R129 - Control Interface Test 1 */
 112        { 149, 0x6810 },    /* R149 - Charge Pump Test 1 */
 113        { 164, 0x0028 },    /* R164 - Clock Rate Test 4 */
 114        { 172, 0x0000 },    /* R172 - Analogue Output Bias 0 */
 115};
 116
 117struct wm8903_priv {
 118        struct wm8903_platform_data *pdata;
 119        struct device *dev;
 120        struct snd_soc_codec *codec;
 121        struct regmap *regmap;
 122
 123        int sysclk;
 124        int irq;
 125
 126        int fs;
 127        int deemph;
 128
 129        int dcs_pending;
 130        int dcs_cache[4];
 131
 132        /* Reference count */
 133        int class_w_users;
 134
 135        struct snd_soc_jack *mic_jack;
 136        int mic_det;
 137        int mic_short;
 138        int mic_last_report;
 139        int mic_delay;
 140
 141#ifdef CONFIG_GPIOLIB
 142        struct gpio_chip gpio_chip;
 143#endif
 144};
 145
 146static bool wm8903_readable_register(struct device *dev, unsigned int reg)
 147{
 148        switch (reg) {
 149        case WM8903_SW_RESET_AND_ID:
 150        case WM8903_REVISION_NUMBER:
 151        case WM8903_BIAS_CONTROL_0:
 152        case WM8903_VMID_CONTROL_0:
 153        case WM8903_MIC_BIAS_CONTROL_0:
 154        case WM8903_ANALOGUE_DAC_0:
 155        case WM8903_ANALOGUE_ADC_0:
 156        case WM8903_POWER_MANAGEMENT_0:
 157        case WM8903_POWER_MANAGEMENT_1:
 158        case WM8903_POWER_MANAGEMENT_2:
 159        case WM8903_POWER_MANAGEMENT_3:
 160        case WM8903_POWER_MANAGEMENT_4:
 161        case WM8903_POWER_MANAGEMENT_5:
 162        case WM8903_POWER_MANAGEMENT_6:
 163        case WM8903_CLOCK_RATES_0:
 164        case WM8903_CLOCK_RATES_1:
 165        case WM8903_CLOCK_RATES_2:
 166        case WM8903_AUDIO_INTERFACE_0:
 167        case WM8903_AUDIO_INTERFACE_1:
 168        case WM8903_AUDIO_INTERFACE_2:
 169        case WM8903_AUDIO_INTERFACE_3:
 170        case WM8903_DAC_DIGITAL_VOLUME_LEFT:
 171        case WM8903_DAC_DIGITAL_VOLUME_RIGHT:
 172        case WM8903_DAC_DIGITAL_0:
 173        case WM8903_DAC_DIGITAL_1:
 174        case WM8903_ADC_DIGITAL_VOLUME_LEFT:
 175        case WM8903_ADC_DIGITAL_VOLUME_RIGHT:
 176        case WM8903_ADC_DIGITAL_0:
 177        case WM8903_DIGITAL_MICROPHONE_0:
 178        case WM8903_DRC_0:
 179        case WM8903_DRC_1:
 180        case WM8903_DRC_2:
 181        case WM8903_DRC_3:
 182        case WM8903_ANALOGUE_LEFT_INPUT_0:
 183        case WM8903_ANALOGUE_RIGHT_INPUT_0:
 184        case WM8903_ANALOGUE_LEFT_INPUT_1:
 185        case WM8903_ANALOGUE_RIGHT_INPUT_1:
 186        case WM8903_ANALOGUE_LEFT_MIX_0:
 187        case WM8903_ANALOGUE_RIGHT_MIX_0:
 188        case WM8903_ANALOGUE_SPK_MIX_LEFT_0:
 189        case WM8903_ANALOGUE_SPK_MIX_LEFT_1:
 190        case WM8903_ANALOGUE_SPK_MIX_RIGHT_0:
 191        case WM8903_ANALOGUE_SPK_MIX_RIGHT_1:
 192        case WM8903_ANALOGUE_OUT1_LEFT:
 193        case WM8903_ANALOGUE_OUT1_RIGHT:
 194        case WM8903_ANALOGUE_OUT2_LEFT:
 195        case WM8903_ANALOGUE_OUT2_RIGHT:
 196        case WM8903_ANALOGUE_OUT3_LEFT:
 197        case WM8903_ANALOGUE_OUT3_RIGHT:
 198        case WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0:
 199        case WM8903_DC_SERVO_0:
 200        case WM8903_DC_SERVO_2:
 201        case WM8903_DC_SERVO_READBACK_1:
 202        case WM8903_DC_SERVO_READBACK_2:
 203        case WM8903_DC_SERVO_READBACK_3:
 204        case WM8903_DC_SERVO_READBACK_4:
 205        case WM8903_ANALOGUE_HP_0:
 206        case WM8903_ANALOGUE_LINEOUT_0:
 207        case WM8903_CHARGE_PUMP_0:
 208        case WM8903_CLASS_W_0:
 209        case WM8903_WRITE_SEQUENCER_0:
 210        case WM8903_WRITE_SEQUENCER_1:
 211        case WM8903_WRITE_SEQUENCER_2:
 212        case WM8903_WRITE_SEQUENCER_3:
 213        case WM8903_WRITE_SEQUENCER_4:
 214        case WM8903_CONTROL_INTERFACE:
 215        case WM8903_GPIO_CONTROL_1:
 216        case WM8903_GPIO_CONTROL_2:
 217        case WM8903_GPIO_CONTROL_3:
 218        case WM8903_GPIO_CONTROL_4:
 219        case WM8903_GPIO_CONTROL_5:
 220        case WM8903_INTERRUPT_STATUS_1:
 221        case WM8903_INTERRUPT_STATUS_1_MASK:
 222        case WM8903_INTERRUPT_POLARITY_1:
 223        case WM8903_INTERRUPT_CONTROL:
 224        case WM8903_CLOCK_RATE_TEST_4:
 225        case WM8903_ANALOGUE_OUTPUT_BIAS_0:
 226                return true;
 227        default:
 228                return false;
 229        }
 230}
 231
 232static bool wm8903_volatile_register(struct device *dev, unsigned int reg)
 233{
 234        switch (reg) {
 235        case WM8903_SW_RESET_AND_ID:
 236        case WM8903_REVISION_NUMBER:
 237        case WM8903_INTERRUPT_STATUS_1:
 238        case WM8903_WRITE_SEQUENCER_4:
 239        case WM8903_DC_SERVO_READBACK_1:
 240        case WM8903_DC_SERVO_READBACK_2:
 241        case WM8903_DC_SERVO_READBACK_3:
 242        case WM8903_DC_SERVO_READBACK_4:
 243                return 1;
 244
 245        default:
 246                return 0;
 247        }
 248}
 249
 250static int wm8903_cp_event(struct snd_soc_dapm_widget *w,
 251                           struct snd_kcontrol *kcontrol, int event)
 252{
 253        WARN_ON(event != SND_SOC_DAPM_POST_PMU);
 254        mdelay(4);
 255
 256        return 0;
 257}
 258
 259static int wm8903_dcs_event(struct snd_soc_dapm_widget *w,
 260                            struct snd_kcontrol *kcontrol, int event)
 261{
 262        struct snd_soc_codec *codec = w->codec;
 263        struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
 264
 265        switch (event) {
 266        case SND_SOC_DAPM_POST_PMU:
 267                wm8903->dcs_pending |= 1 << w->shift;
 268                break;
 269        case SND_SOC_DAPM_PRE_PMD:
 270                snd_soc_update_bits(codec, WM8903_DC_SERVO_0,
 271                                    1 << w->shift, 0);
 272                break;
 273        }
 274
 275        return 0;
 276}
 277
 278#define WM8903_DCS_MODE_WRITE_STOP 0
 279#define WM8903_DCS_MODE_START_STOP 2
 280
 281static void wm8903_seq_notifier(struct snd_soc_dapm_context *dapm,
 282                                enum snd_soc_dapm_type event, int subseq)
 283{
 284        struct snd_soc_codec *codec = container_of(dapm,
 285                                                   struct snd_soc_codec, dapm);
 286        struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
 287        int dcs_mode = WM8903_DCS_MODE_WRITE_STOP;
 288        int i, val;
 289
 290        /* Complete any pending DC servo starts */
 291        if (wm8903->dcs_pending) {
 292                dev_dbg(codec->dev, "Starting DC servo for %x\n",
 293                        wm8903->dcs_pending);
 294
 295                /* If we've no cached values then we need to do startup */
 296                for (i = 0; i < ARRAY_SIZE(wm8903->dcs_cache); i++) {
 297                        if (!(wm8903->dcs_pending & (1 << i)))
 298                                continue;
 299
 300                        if (wm8903->dcs_cache[i]) {
 301                                dev_dbg(codec->dev,
 302                                        "Restore DC servo %d value %x\n",
 303                                        3 - i, wm8903->dcs_cache[i]);
 304
 305                                snd_soc_write(codec, WM8903_DC_SERVO_4 + i,
 306                                              wm8903->dcs_cache[i] & 0xff);
 307                        } else {
 308                                dev_dbg(codec->dev,
 309                                        "Calibrate DC servo %d\n", 3 - i);
 310                                dcs_mode = WM8903_DCS_MODE_START_STOP;
 311                        }
 312                }
 313
 314                /* Don't trust the cache for analogue */
 315                if (wm8903->class_w_users)
 316                        dcs_mode = WM8903_DCS_MODE_START_STOP;
 317
 318                snd_soc_update_bits(codec, WM8903_DC_SERVO_2,
 319                                    WM8903_DCS_MODE_MASK, dcs_mode);
 320
 321                snd_soc_update_bits(codec, WM8903_DC_SERVO_0,
 322                                    WM8903_DCS_ENA_MASK, wm8903->dcs_pending);
 323
 324                switch (dcs_mode) {
 325                case WM8903_DCS_MODE_WRITE_STOP:
 326                        break;
 327
 328                case WM8903_DCS_MODE_START_STOP:
 329                        msleep(270);
 330
 331                        /* Cache the measured offsets for digital */
 332                        if (wm8903->class_w_users)
 333                                break;
 334
 335                        for (i = 0; i < ARRAY_SIZE(wm8903->dcs_cache); i++) {
 336                                if (!(wm8903->dcs_pending & (1 << i)))
 337                                        continue;
 338
 339                                val = snd_soc_read(codec,
 340                                                   WM8903_DC_SERVO_READBACK_1 + i);
 341                                dev_dbg(codec->dev, "DC servo %d: %x\n",
 342                                        3 - i, val);
 343                                wm8903->dcs_cache[i] = val;
 344                        }
 345                        break;
 346
 347                default:
 348                        pr_warn("DCS mode %d delay not set\n", dcs_mode);
 349                        break;
 350                }
 351
 352                wm8903->dcs_pending = 0;
 353        }
 354}
 355
 356/*
 357 * When used with DAC outputs only the WM8903 charge pump supports
 358 * operation in class W mode, providing very low power consumption
 359 * when used with digital sources.  Enable and disable this mode
 360 * automatically depending on the mixer configuration.
 361 *
 362 * All the relevant controls are simple switches.
 363 */
 364static int wm8903_class_w_put(struct snd_kcontrol *kcontrol,
 365                              struct snd_ctl_elem_value *ucontrol)
 366{
 367        struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol);
 368        struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
 369        u16 reg;
 370        int ret;
 371
 372        reg = snd_soc_read(codec, WM8903_CLASS_W_0);
 373
 374        /* Turn it off if we're about to enable bypass */
 375        if (ucontrol->value.integer.value[0]) {
 376                if (wm8903->class_w_users == 0) {
 377                        dev_dbg(codec->dev, "Disabling Class W\n");
 378                        snd_soc_write(codec, WM8903_CLASS_W_0, reg &
 379                                     ~(WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V));
 380                }
 381                wm8903->class_w_users++;
 382        }
 383
 384        /* Implement the change */
 385        ret = snd_soc_dapm_put_volsw(kcontrol, ucontrol);
 386
 387        /* If we've just disabled the last bypass path turn Class W on */
 388        if (!ucontrol->value.integer.value[0]) {
 389                if (wm8903->class_w_users == 1) {
 390                        dev_dbg(codec->dev, "Enabling Class W\n");
 391                        snd_soc_write(codec, WM8903_CLASS_W_0, reg |
 392                                     WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V);
 393                }
 394                wm8903->class_w_users--;
 395        }
 396
 397        dev_dbg(codec->dev, "Bypass use count now %d\n",
 398                wm8903->class_w_users);
 399
 400        return ret;
 401}
 402
 403#define SOC_DAPM_SINGLE_W(xname, reg, shift, max, invert) \
 404        SOC_SINGLE_EXT(xname, reg, shift, max, invert, \
 405                snd_soc_dapm_get_volsw, wm8903_class_w_put)
 406
 407
 408static int wm8903_deemph[] = { 0, 32000, 44100, 48000 };
 409
 410static int wm8903_set_deemph(struct snd_soc_codec *codec)
 411{
 412        struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
 413        int val, i, best;
 414
 415        /* If we're using deemphasis select the nearest available sample
 416         * rate.
 417         */
 418        if (wm8903->deemph) {
 419                best = 1;
 420                for (i = 2; i < ARRAY_SIZE(wm8903_deemph); i++) {
 421                        if (abs(wm8903_deemph[i] - wm8903->fs) <
 422                            abs(wm8903_deemph[best] - wm8903->fs))
 423                                best = i;
 424                }
 425
 426                val = best << WM8903_DEEMPH_SHIFT;
 427        } else {
 428                best = 0;
 429                val = 0;
 430        }
 431
 432        dev_dbg(codec->dev, "Set deemphasis %d (%dHz)\n",
 433                best, wm8903_deemph[best]);
 434
 435        return snd_soc_update_bits(codec, WM8903_DAC_DIGITAL_1,
 436                                   WM8903_DEEMPH_MASK, val);
 437}
 438
 439static int wm8903_get_deemph(struct snd_kcontrol *kcontrol,
 440                             struct snd_ctl_elem_value *ucontrol)
 441{
 442        struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 443        struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
 444
 445        ucontrol->value.enumerated.item[0] = wm8903->deemph;
 446
 447        return 0;
 448}
 449
 450static int wm8903_put_deemph(struct snd_kcontrol *kcontrol,
 451                             struct snd_ctl_elem_value *ucontrol)
 452{
 453        struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 454        struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
 455        int deemph = ucontrol->value.enumerated.item[0];
 456        int ret = 0;
 457
 458        if (deemph > 1)
 459                return -EINVAL;
 460
 461        mutex_lock(&codec->mutex);
 462        if (wm8903->deemph != deemph) {
 463                wm8903->deemph = deemph;
 464
 465                wm8903_set_deemph(codec);
 466
 467                ret = 1;
 468        }
 469        mutex_unlock(&codec->mutex);
 470
 471        return ret;
 472}
 473
 474/* ALSA can only do steps of .01dB */
 475static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
 476
 477static const DECLARE_TLV_DB_SCALE(dac_boost_tlv, 0, 600, 0);
 478
 479static const DECLARE_TLV_DB_SCALE(digital_sidetone_tlv, -3600, 300, 0);
 480static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
 481
 482static const DECLARE_TLV_DB_SCALE(drc_tlv_thresh, 0, 75, 0);
 483static const DECLARE_TLV_DB_SCALE(drc_tlv_amp, -2250, 75, 0);
 484static const DECLARE_TLV_DB_SCALE(drc_tlv_min, 0, 600, 0);
 485static const DECLARE_TLV_DB_SCALE(drc_tlv_max, 1200, 600, 0);
 486static const DECLARE_TLV_DB_SCALE(drc_tlv_startup, -300, 50, 0);
 487
 488static const char *hpf_mode_text[] = {
 489        "Hi-fi", "Voice 1", "Voice 2", "Voice 3"
 490};
 491
 492static const struct soc_enum hpf_mode =
 493        SOC_ENUM_SINGLE(WM8903_ADC_DIGITAL_0, 5, 4, hpf_mode_text);
 494
 495static const char *osr_text[] = {
 496        "Low power", "High performance"
 497};
 498
 499static const struct soc_enum adc_osr =
 500        SOC_ENUM_SINGLE(WM8903_ANALOGUE_ADC_0, 0, 2, osr_text);
 501
 502static const struct soc_enum dac_osr =
 503        SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1, 0, 2, osr_text);
 504
 505static const char *drc_slope_text[] = {
 506        "1", "1/2", "1/4", "1/8", "1/16", "0"
 507};
 508
 509static const struct soc_enum drc_slope_r0 =
 510        SOC_ENUM_SINGLE(WM8903_DRC_2, 3, 6, drc_slope_text);
 511
 512static const struct soc_enum drc_slope_r1 =
 513        SOC_ENUM_SINGLE(WM8903_DRC_2, 0, 6, drc_slope_text);
 514
 515static const char *drc_attack_text[] = {
 516        "instantaneous",
 517        "363us", "762us", "1.45ms", "2.9ms", "5.8ms", "11.6ms", "23.2ms",
 518        "46.4ms", "92.8ms", "185.6ms"
 519};
 520
 521static const struct soc_enum drc_attack =
 522        SOC_ENUM_SINGLE(WM8903_DRC_1, 12, 11, drc_attack_text);
 523
 524static const char *drc_decay_text[] = {
 525        "186ms", "372ms", "743ms", "1.49s", "2.97s", "5.94s", "11.89s",
 526        "23.87s", "47.56s"
 527};
 528
 529static const struct soc_enum drc_decay =
 530        SOC_ENUM_SINGLE(WM8903_DRC_1, 8, 9, drc_decay_text);
 531
 532static const char *drc_ff_delay_text[] = {
 533        "5 samples", "9 samples"
 534};
 535
 536static const struct soc_enum drc_ff_delay =
 537        SOC_ENUM_SINGLE(WM8903_DRC_0, 5, 2, drc_ff_delay_text);
 538
 539static const char *drc_qr_decay_text[] = {
 540        "0.725ms", "1.45ms", "5.8ms"
 541};
 542
 543static const struct soc_enum drc_qr_decay =
 544        SOC_ENUM_SINGLE(WM8903_DRC_1, 4, 3, drc_qr_decay_text);
 545
 546static const char *drc_smoothing_text[] = {
 547        "Low", "Medium", "High"
 548};
 549
 550static const struct soc_enum drc_smoothing =
 551        SOC_ENUM_SINGLE(WM8903_DRC_0, 11, 3, drc_smoothing_text);
 552
 553static const char *soft_mute_text[] = {
 554        "Fast (fs/2)", "Slow (fs/32)"
 555};
 556
 557static const struct soc_enum soft_mute =
 558        SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1, 10, 2, soft_mute_text);
 559
 560static const char *mute_mode_text[] = {
 561        "Hard", "Soft"
 562};
 563
 564static const struct soc_enum mute_mode =
 565        SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1, 9, 2, mute_mode_text);
 566
 567static const char *companding_text[] = {
 568        "ulaw", "alaw"
 569};
 570
 571static const struct soc_enum dac_companding =
 572        SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 0, 2, companding_text);
 573
 574static const struct soc_enum adc_companding =
 575        SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 2, 2, companding_text);
 576
 577static const char *input_mode_text[] = {
 578        "Single-Ended", "Differential Line", "Differential Mic"
 579};
 580
 581static const struct soc_enum linput_mode_enum =
 582        SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1, 0, 3, input_mode_text);
 583
 584static const struct soc_enum rinput_mode_enum =
 585        SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 0, 3, input_mode_text);
 586
 587static const char *linput_mux_text[] = {
 588        "IN1L", "IN2L", "IN3L"
 589};
 590
 591static const struct soc_enum linput_enum =
 592        SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1, 2, 3, linput_mux_text);
 593
 594static const struct soc_enum linput_inv_enum =
 595        SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1, 4, 3, linput_mux_text);
 596
 597static const char *rinput_mux_text[] = {
 598        "IN1R", "IN2R", "IN3R"
 599};
 600
 601static const struct soc_enum rinput_enum =
 602        SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 2, 3, rinput_mux_text);
 603
 604static const struct soc_enum rinput_inv_enum =
 605        SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 4, 3, rinput_mux_text);
 606
 607
 608static const char *sidetone_text[] = {
 609        "None", "Left", "Right"
 610};
 611
 612static const struct soc_enum lsidetone_enum =
 613        SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_0, 2, 3, sidetone_text);
 614
 615static const struct soc_enum rsidetone_enum =
 616        SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_0, 0, 3, sidetone_text);
 617
 618static const char *adcinput_text[] = {
 619        "ADC", "DMIC"
 620};
 621
 622static const struct soc_enum adcinput_enum =
 623        SOC_ENUM_SINGLE(WM8903_CLOCK_RATE_TEST_4, 9, 2, adcinput_text);
 624
 625static const char *aif_text[] = {
 626        "Left", "Right"
 627};
 628
 629static const struct soc_enum lcapture_enum =
 630        SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 7, 2, aif_text);
 631
 632static const struct soc_enum rcapture_enum =
 633        SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 6, 2, aif_text);
 634
 635static const struct soc_enum lplay_enum =
 636        SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 5, 2, aif_text);
 637
 638static const struct soc_enum rplay_enum =
 639        SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 4, 2, aif_text);
 640
 641static const struct snd_kcontrol_new wm8903_snd_controls[] = {
 642
 643/* Input PGAs - No TLV since the scale depends on PGA mode */
 644SOC_SINGLE("Left Input PGA Switch", WM8903_ANALOGUE_LEFT_INPUT_0,
 645           7, 1, 1),
 646SOC_SINGLE("Left Input PGA Volume", WM8903_ANALOGUE_LEFT_INPUT_0,
 647           0, 31, 0),
 648SOC_SINGLE("Left Input PGA Common Mode Switch", WM8903_ANALOGUE_LEFT_INPUT_1,
 649           6, 1, 0),
 650
 651SOC_SINGLE("Right Input PGA Switch", WM8903_ANALOGUE_RIGHT_INPUT_0,
 652           7, 1, 1),
 653SOC_SINGLE("Right Input PGA Volume", WM8903_ANALOGUE_RIGHT_INPUT_0,
 654           0, 31, 0),
 655SOC_SINGLE("Right Input PGA Common Mode Switch", WM8903_ANALOGUE_RIGHT_INPUT_1,
 656           6, 1, 0),
 657
 658/* ADCs */
 659SOC_ENUM("ADC OSR", adc_osr),
 660SOC_SINGLE("HPF Switch", WM8903_ADC_DIGITAL_0, 4, 1, 0),
 661SOC_ENUM("HPF Mode", hpf_mode),
 662SOC_SINGLE("DRC Switch", WM8903_DRC_0, 15, 1, 0),
 663SOC_ENUM("DRC Compressor Slope R0", drc_slope_r0),
 664SOC_ENUM("DRC Compressor Slope R1", drc_slope_r1),
 665SOC_SINGLE_TLV("DRC Compressor Threshold Volume", WM8903_DRC_3, 5, 124, 1,
 666               drc_tlv_thresh),
 667SOC_SINGLE_TLV("DRC Volume", WM8903_DRC_3, 0, 30, 1, drc_tlv_amp),
 668SOC_SINGLE_TLV("DRC Minimum Gain Volume", WM8903_DRC_1, 2, 3, 1, drc_tlv_min),
 669SOC_SINGLE_TLV("DRC Maximum Gain Volume", WM8903_DRC_1, 0, 3, 0, drc_tlv_max),
 670SOC_ENUM("DRC Attack Rate", drc_attack),
 671SOC_ENUM("DRC Decay Rate", drc_decay),
 672SOC_ENUM("DRC FF Delay", drc_ff_delay),
 673SOC_SINGLE("DRC Anticlip Switch", WM8903_DRC_0, 1, 1, 0),
 674SOC_SINGLE("DRC QR Switch", WM8903_DRC_0, 2, 1, 0),
 675SOC_SINGLE_TLV("DRC QR Threshold Volume", WM8903_DRC_0, 6, 3, 0, drc_tlv_max),
 676SOC_ENUM("DRC QR Decay Rate", drc_qr_decay),
 677SOC_SINGLE("DRC Smoothing Switch", WM8903_DRC_0, 3, 1, 0),
 678SOC_SINGLE("DRC Smoothing Hysteresis Switch", WM8903_DRC_0, 0, 1, 0),
 679SOC_ENUM("DRC Smoothing Threshold", drc_smoothing),
 680SOC_SINGLE_TLV("DRC Startup Volume", WM8903_DRC_0, 6, 18, 0, drc_tlv_startup),
 681
 682SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8903_ADC_DIGITAL_VOLUME_LEFT,
 683                 WM8903_ADC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv),
 684SOC_ENUM("ADC Companding Mode", adc_companding),
 685SOC_SINGLE("ADC Companding Switch", WM8903_AUDIO_INTERFACE_0, 3, 1, 0),
 686
 687SOC_DOUBLE_TLV("Digital Sidetone Volume", WM8903_DAC_DIGITAL_0, 4, 8,
 688               12, 0, digital_sidetone_tlv),
 689
 690/* DAC */
 691SOC_ENUM("DAC OSR", dac_osr),
 692SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8903_DAC_DIGITAL_VOLUME_LEFT,
 693                 WM8903_DAC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv),
 694SOC_ENUM("DAC Soft Mute Rate", soft_mute),
 695SOC_ENUM("DAC Mute Mode", mute_mode),
 696SOC_SINGLE("DAC Mono Switch", WM8903_DAC_DIGITAL_1, 12, 1, 0),
 697SOC_ENUM("DAC Companding Mode", dac_companding),
 698SOC_SINGLE("DAC Companding Switch", WM8903_AUDIO_INTERFACE_0, 1, 1, 0),
 699SOC_SINGLE_TLV("DAC Boost Volume", WM8903_AUDIO_INTERFACE_0, 9, 3, 0,
 700               dac_boost_tlv),
 701SOC_SINGLE_BOOL_EXT("Playback Deemphasis Switch", 0,
 702                    wm8903_get_deemph, wm8903_put_deemph),
 703
 704/* Headphones */
 705SOC_DOUBLE_R("Headphone Switch",
 706             WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
 707             8, 1, 1),
 708SOC_DOUBLE_R("Headphone ZC Switch",
 709             WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
 710             6, 1, 0),
 711SOC_DOUBLE_R_TLV("Headphone Volume",
 712                 WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
 713                 0, 63, 0, out_tlv),
 714
 715/* Line out */
 716SOC_DOUBLE_R("Line Out Switch",
 717             WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
 718             8, 1, 1),
 719SOC_DOUBLE_R("Line Out ZC Switch",
 720             WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
 721             6, 1, 0),
 722SOC_DOUBLE_R_TLV("Line Out Volume",
 723                 WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
 724                 0, 63, 0, out_tlv),
 725
 726/* Speaker */
 727SOC_DOUBLE_R("Speaker Switch",
 728             WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT, 8, 1, 1),
 729SOC_DOUBLE_R("Speaker ZC Switch",
 730             WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT, 6, 1, 0),
 731SOC_DOUBLE_R_TLV("Speaker Volume",
 732                 WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT,
 733                 0, 63, 0, out_tlv),
 734};
 735
 736static const struct snd_kcontrol_new linput_mode_mux =
 737        SOC_DAPM_ENUM("Left Input Mode Mux", linput_mode_enum);
 738
 739static const struct snd_kcontrol_new rinput_mode_mux =
 740        SOC_DAPM_ENUM("Right Input Mode Mux", rinput_mode_enum);
 741
 742static const struct snd_kcontrol_new linput_mux =
 743        SOC_DAPM_ENUM("Left Input Mux", linput_enum);
 744
 745static const struct snd_kcontrol_new linput_inv_mux =
 746        SOC_DAPM_ENUM("Left Inverting Input Mux", linput_inv_enum);
 747
 748static const struct snd_kcontrol_new rinput_mux =
 749        SOC_DAPM_ENUM("Right Input Mux", rinput_enum);
 750
 751static const struct snd_kcontrol_new rinput_inv_mux =
 752        SOC_DAPM_ENUM("Right Inverting Input Mux", rinput_inv_enum);
 753
 754static const struct snd_kcontrol_new lsidetone_mux =
 755        SOC_DAPM_ENUM("DACL Sidetone Mux", lsidetone_enum);
 756
 757static const struct snd_kcontrol_new rsidetone_mux =
 758        SOC_DAPM_ENUM("DACR Sidetone Mux", rsidetone_enum);
 759
 760static const struct snd_kcontrol_new adcinput_mux =
 761        SOC_DAPM_ENUM("ADC Input", adcinput_enum);
 762
 763static const struct snd_kcontrol_new lcapture_mux =
 764        SOC_DAPM_ENUM("Left Capture Mux", lcapture_enum);
 765
 766static const struct snd_kcontrol_new rcapture_mux =
 767        SOC_DAPM_ENUM("Right Capture Mux", rcapture_enum);
 768
 769static const struct snd_kcontrol_new lplay_mux =
 770        SOC_DAPM_ENUM("Left Playback Mux", lplay_enum);
 771
 772static const struct snd_kcontrol_new rplay_mux =
 773        SOC_DAPM_ENUM("Right Playback Mux", rplay_enum);
 774
 775static const struct snd_kcontrol_new left_output_mixer[] = {
 776SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_LEFT_MIX_0, 3, 1, 0),
 777SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_LEFT_MIX_0, 2, 1, 0),
 778SOC_DAPM_SINGLE_W("Left Bypass Switch", WM8903_ANALOGUE_LEFT_MIX_0, 1, 1, 0),
 779SOC_DAPM_SINGLE_W("Right Bypass Switch", WM8903_ANALOGUE_LEFT_MIX_0, 0, 1, 0),
 780};
 781
 782static const struct snd_kcontrol_new right_output_mixer[] = {
 783SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 3, 1, 0),
 784SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 2, 1, 0),
 785SOC_DAPM_SINGLE_W("Left Bypass Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 1, 1, 0),
 786SOC_DAPM_SINGLE_W("Right Bypass Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 0, 1, 0),
 787};
 788
 789static const struct snd_kcontrol_new left_speaker_mixer[] = {
 790SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 3, 1, 0),
 791SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 2, 1, 0),
 792SOC_DAPM_SINGLE("Left Bypass Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 1, 1, 0),
 793SOC_DAPM_SINGLE("Right Bypass Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0,
 794                0, 1, 0),
 795};
 796
 797static const struct snd_kcontrol_new right_speaker_mixer[] = {
 798SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0, 3, 1, 0),
 799SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0, 2, 1, 0),
 800SOC_DAPM_SINGLE("Left Bypass Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0,
 801                1, 1, 0),
 802SOC_DAPM_SINGLE("Right Bypass Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0,
 803                0, 1, 0),
 804};
 805
 806static const struct snd_soc_dapm_widget wm8903_dapm_widgets[] = {
 807SND_SOC_DAPM_INPUT("IN1L"),
 808SND_SOC_DAPM_INPUT("IN1R"),
 809SND_SOC_DAPM_INPUT("IN2L"),
 810SND_SOC_DAPM_INPUT("IN2R"),
 811SND_SOC_DAPM_INPUT("IN3L"),
 812SND_SOC_DAPM_INPUT("IN3R"),
 813SND_SOC_DAPM_INPUT("DMICDAT"),
 814
 815SND_SOC_DAPM_OUTPUT("HPOUTL"),
 816SND_SOC_DAPM_OUTPUT("HPOUTR"),
 817SND_SOC_DAPM_OUTPUT("LINEOUTL"),
 818SND_SOC_DAPM_OUTPUT("LINEOUTR"),
 819SND_SOC_DAPM_OUTPUT("LOP"),
 820SND_SOC_DAPM_OUTPUT("LON"),
 821SND_SOC_DAPM_OUTPUT("ROP"),
 822SND_SOC_DAPM_OUTPUT("RON"),
 823
 824SND_SOC_DAPM_SUPPLY("MICBIAS", WM8903_MIC_BIAS_CONTROL_0, 0, 0, NULL, 0),
 825
 826SND_SOC_DAPM_MUX("Left Input Mux", SND_SOC_NOPM, 0, 0, &linput_mux),
 827SND_SOC_DAPM_MUX("Left Input Inverting Mux", SND_SOC_NOPM, 0, 0,
 828                 &linput_inv_mux),
 829SND_SOC_DAPM_MUX("Left Input Mode Mux", SND_SOC_NOPM, 0, 0, &linput_mode_mux),
 830
 831SND_SOC_DAPM_MUX("Right Input Mux", SND_SOC_NOPM, 0, 0, &rinput_mux),
 832SND_SOC_DAPM_MUX("Right Input Inverting Mux", SND_SOC_NOPM, 0, 0,
 833                 &rinput_inv_mux),
 834SND_SOC_DAPM_MUX("Right Input Mode Mux", SND_SOC_NOPM, 0, 0, &rinput_mode_mux),
 835
 836SND_SOC_DAPM_PGA("Left Input PGA", WM8903_POWER_MANAGEMENT_0, 1, 0, NULL, 0),
 837SND_SOC_DAPM_PGA("Right Input PGA", WM8903_POWER_MANAGEMENT_0, 0, 0, NULL, 0),
 838
 839SND_SOC_DAPM_MUX("Left ADC Input", SND_SOC_NOPM, 0, 0, &adcinput_mux),
 840SND_SOC_DAPM_MUX("Right ADC Input", SND_SOC_NOPM, 0, 0, &adcinput_mux),
 841
 842SND_SOC_DAPM_ADC("ADCL", NULL, WM8903_POWER_MANAGEMENT_6, 1, 0),
 843SND_SOC_DAPM_ADC("ADCR", NULL, WM8903_POWER_MANAGEMENT_6, 0, 0),
 844
 845SND_SOC_DAPM_MUX("Left Capture Mux", SND_SOC_NOPM, 0, 0, &lcapture_mux),
 846SND_SOC_DAPM_MUX("Right Capture Mux", SND_SOC_NOPM, 0, 0, &rcapture_mux),
 847
 848SND_SOC_DAPM_AIF_OUT("AIFTXL", "Left HiFi Capture", 0, SND_SOC_NOPM, 0, 0),
 849SND_SOC_DAPM_AIF_OUT("AIFTXR", "Right HiFi Capture", 0, SND_SOC_NOPM, 0, 0),
 850
 851SND_SOC_DAPM_MUX("DACL Sidetone", SND_SOC_NOPM, 0, 0, &lsidetone_mux),
 852SND_SOC_DAPM_MUX("DACR Sidetone", SND_SOC_NOPM, 0, 0, &rsidetone_mux),
 853
 854SND_SOC_DAPM_AIF_IN("AIFRXL", "Left Playback", 0, SND_SOC_NOPM, 0, 0),
 855SND_SOC_DAPM_AIF_IN("AIFRXR", "Right Playback", 0, SND_SOC_NOPM, 0, 0),
 856
 857SND_SOC_DAPM_MUX("Left Playback Mux", SND_SOC_NOPM, 0, 0, &lplay_mux),
 858SND_SOC_DAPM_MUX("Right Playback Mux", SND_SOC_NOPM, 0, 0, &rplay_mux),
 859
 860SND_SOC_DAPM_DAC("DACL", NULL, WM8903_POWER_MANAGEMENT_6, 3, 0),
 861SND_SOC_DAPM_DAC("DACR", NULL, WM8903_POWER_MANAGEMENT_6, 2, 0),
 862
 863SND_SOC_DAPM_MIXER("Left Output Mixer", WM8903_POWER_MANAGEMENT_1, 1, 0,
 864                   left_output_mixer, ARRAY_SIZE(left_output_mixer)),
 865SND_SOC_DAPM_MIXER("Right Output Mixer", WM8903_POWER_MANAGEMENT_1, 0, 0,
 866                   right_output_mixer, ARRAY_SIZE(right_output_mixer)),
 867
 868SND_SOC_DAPM_MIXER("Left Speaker Mixer", WM8903_POWER_MANAGEMENT_4, 1, 0,
 869                   left_speaker_mixer, ARRAY_SIZE(left_speaker_mixer)),
 870SND_SOC_DAPM_MIXER("Right Speaker Mixer", WM8903_POWER_MANAGEMENT_4, 0, 0,
 871                   right_speaker_mixer, ARRAY_SIZE(right_speaker_mixer)),
 872
 873SND_SOC_DAPM_PGA_S("Left Headphone Output PGA", 0, WM8903_POWER_MANAGEMENT_2,
 874                   1, 0, NULL, 0),
 875SND_SOC_DAPM_PGA_S("Right Headphone Output PGA", 0, WM8903_POWER_MANAGEMENT_2,
 876                   0, 0, NULL, 0),
 877
 878SND_SOC_DAPM_PGA_S("Left Line Output PGA", 0, WM8903_POWER_MANAGEMENT_3, 1, 0,
 879                   NULL, 0),
 880SND_SOC_DAPM_PGA_S("Right Line Output PGA", 0, WM8903_POWER_MANAGEMENT_3, 0, 0,
 881                   NULL, 0),
 882
 883SND_SOC_DAPM_PGA_S("HPL_RMV_SHORT", 4, WM8903_ANALOGUE_HP_0, 7, 0, NULL, 0),
 884SND_SOC_DAPM_PGA_S("HPL_ENA_OUTP", 3, WM8903_ANALOGUE_HP_0, 6, 0, NULL, 0),
 885SND_SOC_DAPM_PGA_S("HPL_ENA_DLY", 2, WM8903_ANALOGUE_HP_0, 5, 0, NULL, 0),
 886SND_SOC_DAPM_PGA_S("HPL_ENA", 1, WM8903_ANALOGUE_HP_0, 4, 0, NULL, 0),
 887SND_SOC_DAPM_PGA_S("HPR_RMV_SHORT", 4, WM8903_ANALOGUE_HP_0, 3, 0, NULL, 0),
 888SND_SOC_DAPM_PGA_S("HPR_ENA_OUTP", 3, WM8903_ANALOGUE_HP_0, 2, 0, NULL, 0),
 889SND_SOC_DAPM_PGA_S("HPR_ENA_DLY", 2, WM8903_ANALOGUE_HP_0, 1, 0, NULL, 0),
 890SND_SOC_DAPM_PGA_S("HPR_ENA", 1, WM8903_ANALOGUE_HP_0, 0, 0, NULL, 0),
 891
 892SND_SOC_DAPM_PGA_S("LINEOUTL_RMV_SHORT", 4, WM8903_ANALOGUE_LINEOUT_0, 7, 0,
 893                   NULL, 0),
 894SND_SOC_DAPM_PGA_S("LINEOUTL_ENA_OUTP", 3, WM8903_ANALOGUE_LINEOUT_0, 6, 0,
 895                   NULL, 0),
 896SND_SOC_DAPM_PGA_S("LINEOUTL_ENA_DLY", 2, WM8903_ANALOGUE_LINEOUT_0, 5, 0,
 897                   NULL, 0),
 898SND_SOC_DAPM_PGA_S("LINEOUTL_ENA", 1, WM8903_ANALOGUE_LINEOUT_0, 4, 0,
 899                   NULL, 0),
 900SND_SOC_DAPM_PGA_S("LINEOUTR_RMV_SHORT", 4, WM8903_ANALOGUE_LINEOUT_0, 3, 0,
 901                   NULL, 0),
 902SND_SOC_DAPM_PGA_S("LINEOUTR_ENA_OUTP", 3, WM8903_ANALOGUE_LINEOUT_0, 2, 0,
 903                   NULL, 0),
 904SND_SOC_DAPM_PGA_S("LINEOUTR_ENA_DLY", 2, WM8903_ANALOGUE_LINEOUT_0, 1, 0,
 905                   NULL, 0),
 906SND_SOC_DAPM_PGA_S("LINEOUTR_ENA", 1, WM8903_ANALOGUE_LINEOUT_0, 0, 0,
 907                   NULL, 0),
 908
 909SND_SOC_DAPM_SUPPLY("DCS Master", WM8903_DC_SERVO_0, 4, 0, NULL, 0),
 910SND_SOC_DAPM_PGA_S("HPL_DCS", 3, SND_SOC_NOPM, 3, 0, wm8903_dcs_event,
 911                   SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 912SND_SOC_DAPM_PGA_S("HPR_DCS", 3, SND_SOC_NOPM, 2, 0, wm8903_dcs_event,
 913                   SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 914SND_SOC_DAPM_PGA_S("LINEOUTL_DCS", 3, SND_SOC_NOPM, 1, 0, wm8903_dcs_event,
 915                   SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 916SND_SOC_DAPM_PGA_S("LINEOUTR_DCS", 3, SND_SOC_NOPM, 0, 0, wm8903_dcs_event,
 917                   SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 918
 919SND_SOC_DAPM_PGA("Left Speaker PGA", WM8903_POWER_MANAGEMENT_5, 1, 0,
 920                 NULL, 0),
 921SND_SOC_DAPM_PGA("Right Speaker PGA", WM8903_POWER_MANAGEMENT_5, 0, 0,
 922                 NULL, 0),
 923
 924SND_SOC_DAPM_SUPPLY("Charge Pump", WM8903_CHARGE_PUMP_0, 0, 0,
 925                    wm8903_cp_event, SND_SOC_DAPM_POST_PMU),
 926SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8903_CLOCK_RATES_2, 1, 0, NULL, 0),
 927SND_SOC_DAPM_SUPPLY("CLK_SYS", WM8903_CLOCK_RATES_2, 2, 0, NULL, 0),
 928};
 929
 930static const struct snd_soc_dapm_route wm8903_intercon[] = {
 931
 932        { "CLK_DSP", NULL, "CLK_SYS" },
 933        { "MICBIAS", NULL, "CLK_SYS" },
 934        { "HPL_DCS", NULL, "CLK_SYS" },
 935        { "HPR_DCS", NULL, "CLK_SYS" },
 936        { "LINEOUTL_DCS", NULL, "CLK_SYS" },
 937        { "LINEOUTR_DCS", NULL, "CLK_SYS" },
 938
 939        { "Left Input Mux", "IN1L", "IN1L" },
 940        { "Left Input Mux", "IN2L", "IN2L" },
 941        { "Left Input Mux", "IN3L", "IN3L" },
 942
 943        { "Left Input Inverting Mux", "IN1L", "IN1L" },
 944        { "Left Input Inverting Mux", "IN2L", "IN2L" },
 945        { "Left Input Inverting Mux", "IN3L", "IN3L" },
 946
 947        { "Right Input Mux", "IN1R", "IN1R" },
 948        { "Right Input Mux", "IN2R", "IN2R" },
 949        { "Right Input Mux", "IN3R", "IN3R" },
 950
 951        { "Right Input Inverting Mux", "IN1R", "IN1R" },
 952        { "Right Input Inverting Mux", "IN2R", "IN2R" },
 953        { "Right Input Inverting Mux", "IN3R", "IN3R" },
 954
 955        { "Left Input Mode Mux", "Single-Ended", "Left Input Inverting Mux" },
 956        { "Left Input Mode Mux", "Differential Line",
 957          "Left Input Mux" },
 958        { "Left Input Mode Mux", "Differential Line",
 959          "Left Input Inverting Mux" },
 960        { "Left Input Mode Mux", "Differential Mic",
 961          "Left Input Mux" },
 962        { "Left Input Mode Mux", "Differential Mic",
 963          "Left Input Inverting Mux" },
 964
 965        { "Right Input Mode Mux", "Single-Ended",
 966          "Right Input Inverting Mux" },
 967        { "Right Input Mode Mux", "Differential Line",
 968          "Right Input Mux" },
 969        { "Right Input Mode Mux", "Differential Line",
 970          "Right Input Inverting Mux" },
 971        { "Right Input Mode Mux", "Differential Mic",
 972          "Right Input Mux" },
 973        { "Right Input Mode Mux", "Differential Mic",
 974          "Right Input Inverting Mux" },
 975
 976        { "Left Input PGA", NULL, "Left Input Mode Mux" },
 977        { "Right Input PGA", NULL, "Right Input Mode Mux" },
 978
 979        { "Left ADC Input", "ADC", "Left Input PGA" },
 980        { "Left ADC Input", "DMIC", "DMICDAT" },
 981        { "Right ADC Input", "ADC", "Right Input PGA" },
 982        { "Right ADC Input", "DMIC", "DMICDAT" },
 983
 984        { "Left Capture Mux", "Left", "ADCL" },
 985        { "Left Capture Mux", "Right", "ADCR" },
 986
 987        { "Right Capture Mux", "Left", "ADCL" },
 988        { "Right Capture Mux", "Right", "ADCR" },
 989
 990        { "AIFTXL", NULL, "Left Capture Mux" },
 991        { "AIFTXR", NULL, "Right Capture Mux" },
 992
 993        { "ADCL", NULL, "Left ADC Input" },
 994        { "ADCL", NULL, "CLK_DSP" },
 995        { "ADCR", NULL, "Right ADC Input" },
 996        { "ADCR", NULL, "CLK_DSP" },
 997
 998        { "Left Playback Mux", "Left", "AIFRXL" },
 999        { "Left Playback Mux", "Right", "AIFRXR" },
1000
1001        { "Right Playback Mux", "Left", "AIFRXL" },
1002        { "Right Playback Mux", "Right", "AIFRXR" },
1003
1004        { "DACL Sidetone", "Left", "ADCL" },
1005        { "DACL Sidetone", "Right", "ADCR" },
1006        { "DACR Sidetone", "Left", "ADCL" },
1007        { "DACR Sidetone", "Right", "ADCR" },
1008
1009        { "DACL", NULL, "Left Playback Mux" },
1010        { "DACL", NULL, "DACL Sidetone" },
1011        { "DACL", NULL, "CLK_DSP" },
1012
1013        { "DACR", NULL, "Right Playback Mux" },
1014        { "DACR", NULL, "DACR Sidetone" },
1015        { "DACR", NULL, "CLK_DSP" },
1016
1017        { "Left Output Mixer", "Left Bypass Switch", "Left Input PGA" },
1018        { "Left Output Mixer", "Right Bypass Switch", "Right Input PGA" },
1019        { "Left Output Mixer", "DACL Switch", "DACL" },
1020        { "Left Output Mixer", "DACR Switch", "DACR" },
1021
1022        { "Right Output Mixer", "Left Bypass Switch", "Left Input PGA" },
1023        { "Right Output Mixer", "Right Bypass Switch", "Right Input PGA" },
1024        { "Right Output Mixer", "DACL Switch", "DACL" },
1025        { "Right Output Mixer", "DACR Switch", "DACR" },
1026
1027        { "Left Speaker Mixer", "Left Bypass Switch", "Left Input PGA" },
1028        { "Left Speaker Mixer", "Right Bypass Switch", "Right Input PGA" },
1029        { "Left Speaker Mixer", "DACL Switch", "DACL" },
1030        { "Left Speaker Mixer", "DACR Switch", "DACR" },
1031
1032        { "Right Speaker Mixer", "Left Bypass Switch", "Left Input PGA" },
1033        { "Right Speaker Mixer", "Right Bypass Switch", "Right Input PGA" },
1034        { "Right Speaker Mixer", "DACL Switch", "DACL" },
1035        { "Right Speaker Mixer", "DACR Switch", "DACR" },
1036
1037        { "Left Line Output PGA", NULL, "Left Output Mixer" },
1038        { "Right Line Output PGA", NULL, "Right Output Mixer" },
1039
1040        { "Left Headphone Output PGA", NULL, "Left Output Mixer" },
1041        { "Right Headphone Output PGA", NULL, "Right Output Mixer" },
1042
1043        { "Left Speaker PGA", NULL, "Left Speaker Mixer" },
1044        { "Right Speaker PGA", NULL, "Right Speaker Mixer" },
1045
1046        { "HPL_ENA", NULL, "Left Headphone Output PGA" },
1047        { "HPR_ENA", NULL, "Right Headphone Output PGA" },
1048        { "HPL_ENA_DLY", NULL, "HPL_ENA" },
1049        { "HPR_ENA_DLY", NULL, "HPR_ENA" },
1050        { "LINEOUTL_ENA", NULL, "Left Line Output PGA" },
1051        { "LINEOUTR_ENA", NULL, "Right Line Output PGA" },
1052        { "LINEOUTL_ENA_DLY", NULL, "LINEOUTL_ENA" },
1053        { "LINEOUTR_ENA_DLY", NULL, "LINEOUTR_ENA" },
1054
1055        { "HPL_DCS", NULL, "DCS Master" },
1056        { "HPR_DCS", NULL, "DCS Master" },
1057        { "LINEOUTL_DCS", NULL, "DCS Master" },
1058        { "LINEOUTR_DCS", NULL, "DCS Master" },
1059
1060        { "HPL_DCS", NULL, "HPL_ENA_DLY" },
1061        { "HPR_DCS", NULL, "HPR_ENA_DLY" },
1062        { "LINEOUTL_DCS", NULL, "LINEOUTL_ENA_DLY" },
1063        { "LINEOUTR_DCS", NULL, "LINEOUTR_ENA_DLY" },
1064
1065        { "HPL_ENA_OUTP", NULL, "HPL_DCS" },
1066        { "HPR_ENA_OUTP", NULL, "HPR_DCS" },
1067        { "LINEOUTL_ENA_OUTP", NULL, "LINEOUTL_DCS" },
1068        { "LINEOUTR_ENA_OUTP", NULL, "LINEOUTR_DCS" },
1069
1070        { "HPL_RMV_SHORT", NULL, "HPL_ENA_OUTP" },
1071        { "HPR_RMV_SHORT", NULL, "HPR_ENA_OUTP" },
1072        { "LINEOUTL_RMV_SHORT", NULL, "LINEOUTL_ENA_OUTP" },
1073        { "LINEOUTR_RMV_SHORT", NULL, "LINEOUTR_ENA_OUTP" },
1074
1075        { "HPOUTL", NULL, "HPL_RMV_SHORT" },
1076        { "HPOUTR", NULL, "HPR_RMV_SHORT" },
1077        { "LINEOUTL", NULL, "LINEOUTL_RMV_SHORT" },
1078        { "LINEOUTR", NULL, "LINEOUTR_RMV_SHORT" },
1079
1080        { "LOP", NULL, "Left Speaker PGA" },
1081        { "LON", NULL, "Left Speaker PGA" },
1082
1083        { "ROP", NULL, "Right Speaker PGA" },
1084        { "RON", NULL, "Right Speaker PGA" },
1085
1086        { "Charge Pump", NULL, "CLK_DSP" },
1087
1088        { "Left Headphone Output PGA", NULL, "Charge Pump" },
1089        { "Right Headphone Output PGA", NULL, "Charge Pump" },
1090        { "Left Line Output PGA", NULL, "Charge Pump" },
1091        { "Right Line Output PGA", NULL, "Charge Pump" },
1092};
1093
1094static int wm8903_set_bias_level(struct snd_soc_codec *codec,
1095                                 enum snd_soc_bias_level level)
1096{
1097        switch (level) {
1098        case SND_SOC_BIAS_ON:
1099                break;
1100
1101        case SND_SOC_BIAS_PREPARE:
1102                snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1103                                    WM8903_VMID_RES_MASK,
1104                                    WM8903_VMID_RES_50K);
1105                break;
1106
1107        case SND_SOC_BIAS_STANDBY:
1108                if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
1109                        snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0,
1110                                            WM8903_POBCTRL | WM8903_ISEL_MASK |
1111                                            WM8903_STARTUP_BIAS_ENA |
1112                                            WM8903_BIAS_ENA,
1113                                            WM8903_POBCTRL |
1114                                            (2 << WM8903_ISEL_SHIFT) |
1115                                            WM8903_STARTUP_BIAS_ENA);
1116
1117                        snd_soc_update_bits(codec,
1118                                            WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0,
1119                                            WM8903_SPK_DISCHARGE,
1120                                            WM8903_SPK_DISCHARGE);
1121
1122                        msleep(33);
1123
1124                        snd_soc_update_bits(codec, WM8903_POWER_MANAGEMENT_5,
1125                                            WM8903_SPKL_ENA | WM8903_SPKR_ENA,
1126                                            WM8903_SPKL_ENA | WM8903_SPKR_ENA);
1127
1128                        snd_soc_update_bits(codec,
1129                                            WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0,
1130                                            WM8903_SPK_DISCHARGE, 0);
1131
1132                        snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1133                                            WM8903_VMID_TIE_ENA |
1134                                            WM8903_BUFIO_ENA |
1135                                            WM8903_VMID_IO_ENA |
1136                                            WM8903_VMID_SOFT_MASK |
1137                                            WM8903_VMID_RES_MASK |
1138                                            WM8903_VMID_BUF_ENA,
1139                                            WM8903_VMID_TIE_ENA |
1140                                            WM8903_BUFIO_ENA |
1141                                            WM8903_VMID_IO_ENA |
1142                                            (2 << WM8903_VMID_SOFT_SHIFT) |
1143                                            WM8903_VMID_RES_250K |
1144                                            WM8903_VMID_BUF_ENA);
1145
1146                        msleep(129);
1147
1148                        snd_soc_update_bits(codec, WM8903_POWER_MANAGEMENT_5,
1149                                            WM8903_SPKL_ENA | WM8903_SPKR_ENA,
1150                                            0);
1151
1152                        snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1153                                            WM8903_VMID_SOFT_MASK, 0);
1154
1155                        snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1156                                            WM8903_VMID_RES_MASK,
1157                                            WM8903_VMID_RES_50K);
1158
1159                        snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0,
1160                                            WM8903_BIAS_ENA | WM8903_POBCTRL,
1161                                            WM8903_BIAS_ENA);
1162
1163                        /* By default no bypass paths are enabled so
1164                         * enable Class W support.
1165                         */
1166                        dev_dbg(codec->dev, "Enabling Class W\n");
1167                        snd_soc_update_bits(codec, WM8903_CLASS_W_0,
1168                                            WM8903_CP_DYN_FREQ |
1169                                            WM8903_CP_DYN_V,
1170                                            WM8903_CP_DYN_FREQ |
1171                                            WM8903_CP_DYN_V);
1172                }
1173
1174                snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1175                                    WM8903_VMID_RES_MASK,
1176                                    WM8903_VMID_RES_250K);
1177                break;
1178
1179        case SND_SOC_BIAS_OFF:
1180                snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0,
1181                                    WM8903_BIAS_ENA, 0);
1182
1183                snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1184                                    WM8903_VMID_SOFT_MASK,
1185                                    2 << WM8903_VMID_SOFT_SHIFT);
1186
1187                snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1188                                    WM8903_VMID_BUF_ENA, 0);
1189
1190                msleep(290);
1191
1192                snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1193                                    WM8903_VMID_TIE_ENA | WM8903_BUFIO_ENA |
1194                                    WM8903_VMID_IO_ENA | WM8903_VMID_RES_MASK |
1195                                    WM8903_VMID_SOFT_MASK |
1196                                    WM8903_VMID_BUF_ENA, 0);
1197
1198                snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0,
1199                                    WM8903_STARTUP_BIAS_ENA, 0);
1200                break;
1201        }
1202
1203        codec->dapm.bias_level = level;
1204
1205        return 0;
1206}
1207
1208static int wm8903_set_dai_sysclk(struct snd_soc_dai *codec_dai,
1209                                 int clk_id, unsigned int freq, int dir)
1210{
1211        struct snd_soc_codec *codec = codec_dai->codec;
1212        struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1213
1214        wm8903->sysclk = freq;
1215
1216        return 0;
1217}
1218
1219static int wm8903_set_dai_fmt(struct snd_soc_dai *codec_dai,
1220                              unsigned int fmt)
1221{
1222        struct snd_soc_codec *codec = codec_dai->codec;
1223        u16 aif1 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_1);
1224
1225        aif1 &= ~(WM8903_LRCLK_DIR | WM8903_BCLK_DIR | WM8903_AIF_FMT_MASK |
1226                  WM8903_AIF_LRCLK_INV | WM8903_AIF_BCLK_INV);
1227
1228        switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1229        case SND_SOC_DAIFMT_CBS_CFS:
1230                break;
1231        case SND_SOC_DAIFMT_CBS_CFM:
1232                aif1 |= WM8903_LRCLK_DIR;
1233                break;
1234        case SND_SOC_DAIFMT_CBM_CFM:
1235                aif1 |= WM8903_LRCLK_DIR | WM8903_BCLK_DIR;
1236                break;
1237        case SND_SOC_DAIFMT_CBM_CFS:
1238                aif1 |= WM8903_BCLK_DIR;
1239                break;
1240        default:
1241                return -EINVAL;
1242        }
1243
1244        switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1245        case SND_SOC_DAIFMT_DSP_A:
1246                aif1 |= 0x3;
1247                break;
1248        case SND_SOC_DAIFMT_DSP_B:
1249                aif1 |= 0x3 | WM8903_AIF_LRCLK_INV;
1250                break;
1251        case SND_SOC_DAIFMT_I2S:
1252                aif1 |= 0x2;
1253                break;
1254        case SND_SOC_DAIFMT_RIGHT_J:
1255                aif1 |= 0x1;
1256                break;
1257        case SND_SOC_DAIFMT_LEFT_J:
1258                break;
1259        default:
1260                return -EINVAL;
1261        }
1262
1263        /* Clock inversion */
1264        switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1265        case SND_SOC_DAIFMT_DSP_A:
1266        case SND_SOC_DAIFMT_DSP_B:
1267                /* frame inversion not valid for DSP modes */
1268                switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1269                case SND_SOC_DAIFMT_NB_NF:
1270                        break;
1271                case SND_SOC_DAIFMT_IB_NF:
1272                        aif1 |= WM8903_AIF_BCLK_INV;
1273                        break;
1274                default:
1275                        return -EINVAL;
1276                }
1277                break;
1278        case SND_SOC_DAIFMT_I2S:
1279        case SND_SOC_DAIFMT_RIGHT_J:
1280        case SND_SOC_DAIFMT_LEFT_J:
1281                switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1282                case SND_SOC_DAIFMT_NB_NF:
1283                        break;
1284                case SND_SOC_DAIFMT_IB_IF:
1285                        aif1 |= WM8903_AIF_BCLK_INV | WM8903_AIF_LRCLK_INV;
1286                        break;
1287                case SND_SOC_DAIFMT_IB_NF:
1288                        aif1 |= WM8903_AIF_BCLK_INV;
1289                        break;
1290                case SND_SOC_DAIFMT_NB_IF:
1291                        aif1 |= WM8903_AIF_LRCLK_INV;
1292                        break;
1293                default:
1294                        return -EINVAL;
1295                }
1296                break;
1297        default:
1298                return -EINVAL;
1299        }
1300
1301        snd_soc_write(codec, WM8903_AUDIO_INTERFACE_1, aif1);
1302
1303        return 0;
1304}
1305
1306static int wm8903_digital_mute(struct snd_soc_dai *codec_dai, int mute)
1307{
1308        struct snd_soc_codec *codec = codec_dai->codec;
1309        u16 reg;
1310
1311        reg = snd_soc_read(codec, WM8903_DAC_DIGITAL_1);
1312
1313        if (mute)
1314                reg |= WM8903_DAC_MUTE;
1315        else
1316                reg &= ~WM8903_DAC_MUTE;
1317
1318        snd_soc_write(codec, WM8903_DAC_DIGITAL_1, reg);
1319
1320        return 0;
1321}
1322
1323/* Lookup table for CLK_SYS/fs ratio.  256fs or more is recommended
1324 * for optimal performance so we list the lower rates first and match
1325 * on the last match we find. */
1326static struct {
1327        int div;
1328        int rate;
1329        int mode;
1330        int mclk_div;
1331} clk_sys_ratios[] = {
1332        {   64, 0x0, 0x0, 1 },
1333        {   68, 0x0, 0x1, 1 },
1334        {  125, 0x0, 0x2, 1 },
1335        {  128, 0x1, 0x0, 1 },
1336        {  136, 0x1, 0x1, 1 },
1337        {  192, 0x2, 0x0, 1 },
1338        {  204, 0x2, 0x1, 1 },
1339
1340        {   64, 0x0, 0x0, 2 },
1341        {   68, 0x0, 0x1, 2 },
1342        {  125, 0x0, 0x2, 2 },
1343        {  128, 0x1, 0x0, 2 },
1344        {  136, 0x1, 0x1, 2 },
1345        {  192, 0x2, 0x0, 2 },
1346        {  204, 0x2, 0x1, 2 },
1347
1348        {  250, 0x2, 0x2, 1 },
1349        {  256, 0x3, 0x0, 1 },
1350        {  272, 0x3, 0x1, 1 },
1351        {  384, 0x4, 0x0, 1 },
1352        {  408, 0x4, 0x1, 1 },
1353        {  375, 0x4, 0x2, 1 },
1354        {  512, 0x5, 0x0, 1 },
1355        {  544, 0x5, 0x1, 1 },
1356        {  500, 0x5, 0x2, 1 },
1357        {  768, 0x6, 0x0, 1 },
1358        {  816, 0x6, 0x1, 1 },
1359        {  750, 0x6, 0x2, 1 },
1360        { 1024, 0x7, 0x0, 1 },
1361        { 1088, 0x7, 0x1, 1 },
1362        { 1000, 0x7, 0x2, 1 },
1363        { 1408, 0x8, 0x0, 1 },
1364        { 1496, 0x8, 0x1, 1 },
1365        { 1536, 0x9, 0x0, 1 },
1366        { 1632, 0x9, 0x1, 1 },
1367        { 1500, 0x9, 0x2, 1 },
1368
1369        {  250, 0x2, 0x2, 2 },
1370        {  256, 0x3, 0x0, 2 },
1371        {  272, 0x3, 0x1, 2 },
1372        {  384, 0x4, 0x0, 2 },
1373        {  408, 0x4, 0x1, 2 },
1374        {  375, 0x4, 0x2, 2 },
1375        {  512, 0x5, 0x0, 2 },
1376        {  544, 0x5, 0x1, 2 },
1377        {  500, 0x5, 0x2, 2 },
1378        {  768, 0x6, 0x0, 2 },
1379        {  816, 0x6, 0x1, 2 },
1380        {  750, 0x6, 0x2, 2 },
1381        { 1024, 0x7, 0x0, 2 },
1382        { 1088, 0x7, 0x1, 2 },
1383        { 1000, 0x7, 0x2, 2 },
1384        { 1408, 0x8, 0x0, 2 },
1385        { 1496, 0x8, 0x1, 2 },
1386        { 1536, 0x9, 0x0, 2 },
1387        { 1632, 0x9, 0x1, 2 },
1388        { 1500, 0x9, 0x2, 2 },
1389};
1390
1391/* CLK_SYS/BCLK ratios - multiplied by 10 due to .5s */
1392static struct {
1393        int ratio;
1394        int div;
1395} bclk_divs[] = {
1396        {  10,  0 },
1397        {  20,  2 },
1398        {  30,  3 },
1399        {  40,  4 },
1400        {  50,  5 },
1401        {  60,  7 },
1402        {  80,  8 },
1403        { 100,  9 },
1404        { 120, 11 },
1405        { 160, 12 },
1406        { 200, 13 },
1407        { 220, 14 },
1408        { 240, 15 },
1409        { 300, 17 },
1410        { 320, 18 },
1411        { 440, 19 },
1412        { 480, 20 },
1413};
1414
1415/* Sample rates for DSP */
1416static struct {
1417        int rate;
1418        int value;
1419} sample_rates[] = {
1420        {  8000,  0 },
1421        { 11025,  1 },
1422        { 12000,  2 },
1423        { 16000,  3 },
1424        { 22050,  4 },
1425        { 24000,  5 },
1426        { 32000,  6 },
1427        { 44100,  7 },
1428        { 48000,  8 },
1429        { 88200,  9 },
1430        { 96000, 10 },
1431        { 0,      0 },
1432};
1433
1434static int wm8903_hw_params(struct snd_pcm_substream *substream,
1435                            struct snd_pcm_hw_params *params,
1436                            struct snd_soc_dai *dai)
1437{
1438        struct snd_soc_codec *codec = dai->codec;
1439        struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1440        int fs = params_rate(params);
1441        int bclk;
1442        int bclk_div;
1443        int i;
1444        int dsp_config;
1445        int clk_config;
1446        int best_val;
1447        int cur_val;
1448        int clk_sys;
1449
1450        u16 aif1 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_1);
1451        u16 aif2 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_2);
1452        u16 aif3 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_3);
1453        u16 clock0 = snd_soc_read(codec, WM8903_CLOCK_RATES_0);
1454        u16 clock1 = snd_soc_read(codec, WM8903_CLOCK_RATES_1);
1455        u16 dac_digital1 = snd_soc_read(codec, WM8903_DAC_DIGITAL_1);
1456
1457        /* Enable sloping stopband filter for low sample rates */
1458        if (fs <= 24000)
1459                dac_digital1 |= WM8903_DAC_SB_FILT;
1460        else
1461                dac_digital1 &= ~WM8903_DAC_SB_FILT;
1462
1463        /* Configure sample rate logic for DSP - choose nearest rate */
1464        dsp_config = 0;
1465        best_val = abs(sample_rates[dsp_config].rate - fs);
1466        for (i = 1; i < ARRAY_SIZE(sample_rates); i++) {
1467                cur_val = abs(sample_rates[i].rate - fs);
1468                if (cur_val <= best_val) {
1469                        dsp_config = i;
1470                        best_val = cur_val;
1471                }
1472        }
1473
1474        dev_dbg(codec->dev, "DSP fs = %dHz\n", sample_rates[dsp_config].rate);
1475        clock1 &= ~WM8903_SAMPLE_RATE_MASK;
1476        clock1 |= sample_rates[dsp_config].value;
1477
1478        aif1 &= ~WM8903_AIF_WL_MASK;
1479        bclk = 2 * fs;
1480        switch (params_format(params)) {
1481        case SNDRV_PCM_FORMAT_S16_LE:
1482                bclk *= 16;
1483                break;
1484        case SNDRV_PCM_FORMAT_S20_3LE:
1485                bclk *= 20;
1486                aif1 |= 0x4;
1487                break;
1488        case SNDRV_PCM_FORMAT_S24_LE:
1489                bclk *= 24;
1490                aif1 |= 0x8;
1491                break;
1492        case SNDRV_PCM_FORMAT_S32_LE:
1493                bclk *= 32;
1494                aif1 |= 0xc;
1495                break;
1496        default:
1497                return -EINVAL;
1498        }
1499
1500        dev_dbg(codec->dev, "MCLK = %dHz, target sample rate = %dHz\n",
1501                wm8903->sysclk, fs);
1502
1503        /* We may not have an MCLK which allows us to generate exactly
1504         * the clock we want, particularly with USB derived inputs, so
1505         * approximate.
1506         */
1507        clk_config = 0;
1508        best_val = abs((wm8903->sysclk /
1509                        (clk_sys_ratios[0].mclk_div *
1510                         clk_sys_ratios[0].div)) - fs);
1511        for (i = 1; i < ARRAY_SIZE(clk_sys_ratios); i++) {
1512                cur_val = abs((wm8903->sysclk /
1513                               (clk_sys_ratios[i].mclk_div *
1514                                clk_sys_ratios[i].div)) - fs);
1515
1516                if (cur_val <= best_val) {
1517                        clk_config = i;
1518                        best_val = cur_val;
1519                }
1520        }
1521
1522        if (clk_sys_ratios[clk_config].mclk_div == 2) {
1523                clock0 |= WM8903_MCLKDIV2;
1524                clk_sys = wm8903->sysclk / 2;
1525        } else {
1526                clock0 &= ~WM8903_MCLKDIV2;
1527                clk_sys = wm8903->sysclk;
1528        }
1529
1530        clock1 &= ~(WM8903_CLK_SYS_RATE_MASK |
1531                    WM8903_CLK_SYS_MODE_MASK);
1532        clock1 |= clk_sys_ratios[clk_config].rate << WM8903_CLK_SYS_RATE_SHIFT;
1533        clock1 |= clk_sys_ratios[clk_config].mode << WM8903_CLK_SYS_MODE_SHIFT;
1534
1535        dev_dbg(codec->dev, "CLK_SYS_RATE=%x, CLK_SYS_MODE=%x div=%d\n",
1536                clk_sys_ratios[clk_config].rate,
1537                clk_sys_ratios[clk_config].mode,
1538                clk_sys_ratios[clk_config].div);
1539
1540        dev_dbg(codec->dev, "Actual CLK_SYS = %dHz\n", clk_sys);
1541
1542        /* We may not get quite the right frequency if using
1543         * approximate clocks so look for the closest match that is
1544         * higher than the target (we need to ensure that there enough
1545         * BCLKs to clock out the samples).
1546         */
1547        bclk_div = 0;
1548        best_val = ((clk_sys * 10) / bclk_divs[0].ratio) - bclk;
1549        i = 1;
1550        while (i < ARRAY_SIZE(bclk_divs)) {
1551                cur_val = ((clk_sys * 10) / bclk_divs[i].ratio) - bclk;
1552                if (cur_val < 0) /* BCLK table is sorted */
1553                        break;
1554                bclk_div = i;
1555                best_val = cur_val;
1556                i++;
1557        }
1558
1559        aif2 &= ~WM8903_BCLK_DIV_MASK;
1560        aif3 &= ~WM8903_LRCLK_RATE_MASK;
1561
1562        dev_dbg(codec->dev, "BCLK ratio %d for %dHz - actual BCLK = %dHz\n",
1563                bclk_divs[bclk_div].ratio / 10, bclk,
1564                (clk_sys * 10) / bclk_divs[bclk_div].ratio);
1565
1566        aif2 |= bclk_divs[bclk_div].div;
1567        aif3 |= bclk / fs;
1568
1569        wm8903->fs = params_rate(params);
1570        wm8903_set_deemph(codec);
1571
1572        snd_soc_write(codec, WM8903_CLOCK_RATES_0, clock0);
1573        snd_soc_write(codec, WM8903_CLOCK_RATES_1, clock1);
1574        snd_soc_write(codec, WM8903_AUDIO_INTERFACE_1, aif1);
1575        snd_soc_write(codec, WM8903_AUDIO_INTERFACE_2, aif2);
1576        snd_soc_write(codec, WM8903_AUDIO_INTERFACE_3, aif3);
1577        snd_soc_write(codec, WM8903_DAC_DIGITAL_1, dac_digital1);
1578
1579        return 0;
1580}
1581
1582/**
1583 * wm8903_mic_detect - Enable microphone detection via the WM8903 IRQ
1584 *
1585 * @codec:  WM8903 codec
1586 * @jack:   jack to report detection events on
1587 * @det:    value to report for presence detection
1588 * @shrt:   value to report for short detection
1589 *
1590 * Enable microphone detection via IRQ on the WM8903.  If GPIOs are
1591 * being used to bring out signals to the processor then only platform
1592 * data configuration is needed for WM8903 and processor GPIOs should
1593 * be configured using snd_soc_jack_add_gpios() instead.
1594 *
1595 * The current threasholds for detection should be configured using
1596 * micdet_cfg in the platform data.  Using this function will force on
1597 * the microphone bias for the device.
1598 */
1599int wm8903_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack,
1600                      int det, int shrt)
1601{
1602        struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1603        int irq_mask = WM8903_MICDET_EINT | WM8903_MICSHRT_EINT;
1604
1605        dev_dbg(codec->dev, "Enabling microphone detection: %x %x\n",
1606                det, shrt);
1607
1608        /* Store the configuration */
1609        wm8903->mic_jack = jack;
1610        wm8903->mic_det = det;
1611        wm8903->mic_short = shrt;
1612
1613        /* Enable interrupts we've got a report configured for */
1614        if (det)
1615                irq_mask &= ~WM8903_MICDET_EINT;
1616        if (shrt)
1617                irq_mask &= ~WM8903_MICSHRT_EINT;
1618
1619        snd_soc_update_bits(codec, WM8903_INTERRUPT_STATUS_1_MASK,
1620                            WM8903_MICDET_EINT | WM8903_MICSHRT_EINT,
1621                            irq_mask);
1622
1623        if (det || shrt) {
1624                /* Enable mic detection, this may not have been set through
1625                 * platform data (eg, if the defaults are OK). */
1626                snd_soc_update_bits(codec, WM8903_WRITE_SEQUENCER_0,
1627                                    WM8903_WSEQ_ENA, WM8903_WSEQ_ENA);
1628                snd_soc_update_bits(codec, WM8903_MIC_BIAS_CONTROL_0,
1629                                    WM8903_MICDET_ENA, WM8903_MICDET_ENA);
1630        } else {
1631                snd_soc_update_bits(codec, WM8903_MIC_BIAS_CONTROL_0,
1632                                    WM8903_MICDET_ENA, 0);
1633        }
1634
1635        return 0;
1636}
1637EXPORT_SYMBOL_GPL(wm8903_mic_detect);
1638
1639static irqreturn_t wm8903_irq(int irq, void *data)
1640{
1641        struct wm8903_priv *wm8903 = data;
1642        int mic_report, ret;
1643        unsigned int int_val, mask, int_pol;
1644
1645        ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_STATUS_1_MASK,
1646                          &mask);
1647        if (ret != 0) {
1648                dev_err(wm8903->dev, "Failed to read IRQ mask: %d\n", ret);
1649                return IRQ_NONE;
1650        }
1651
1652        ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_STATUS_1, &int_val);
1653        if (ret != 0) {
1654                dev_err(wm8903->dev, "Failed to read IRQ status: %d\n", ret);
1655                return IRQ_NONE;
1656        }
1657
1658        int_val &= ~mask;
1659
1660        if (int_val & WM8903_WSEQ_BUSY_EINT) {
1661                dev_warn(wm8903->dev, "Write sequencer done\n");
1662        }
1663
1664        /*
1665         * The rest is microphone jack detection.  We need to manually
1666         * invert the polarity of the interrupt after each event - to
1667         * simplify the code keep track of the last state we reported
1668         * and just invert the relevant bits in both the report and
1669         * the polarity register.
1670         */
1671        mic_report = wm8903->mic_last_report;
1672        ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_POLARITY_1,
1673                          &int_pol);
1674        if (ret != 0) {
1675                dev_err(wm8903->dev, "Failed to read interrupt polarity: %d\n",
1676                        ret);
1677                return IRQ_HANDLED;
1678        }
1679
1680#ifndef CONFIG_SND_SOC_WM8903_MODULE
1681        if (int_val & (WM8903_MICSHRT_EINT | WM8903_MICDET_EINT))
1682                trace_snd_soc_jack_irq(dev_name(wm8903->dev));
1683#endif
1684
1685        if (int_val & WM8903_MICSHRT_EINT) {
1686                dev_dbg(wm8903->dev, "Microphone short (pol=%x)\n", int_pol);
1687
1688                mic_report ^= wm8903->mic_short;
1689                int_pol ^= WM8903_MICSHRT_INV;
1690        }
1691
1692        if (int_val & WM8903_MICDET_EINT) {
1693                dev_dbg(wm8903->dev, "Microphone detect (pol=%x)\n", int_pol);
1694
1695                mic_report ^= wm8903->mic_det;
1696                int_pol ^= WM8903_MICDET_INV;
1697
1698                msleep(wm8903->mic_delay);
1699        }
1700
1701        regmap_update_bits(wm8903->regmap, WM8903_INTERRUPT_POLARITY_1,
1702                           WM8903_MICSHRT_INV | WM8903_MICDET_INV, int_pol);
1703
1704        snd_soc_jack_report(wm8903->mic_jack, mic_report,
1705                            wm8903->mic_short | wm8903->mic_det);
1706
1707        wm8903->mic_last_report = mic_report;
1708
1709        return IRQ_HANDLED;
1710}
1711
1712#define WM8903_PLAYBACK_RATES (SNDRV_PCM_RATE_8000 |\
1713                               SNDRV_PCM_RATE_11025 |   \
1714                               SNDRV_PCM_RATE_16000 |   \
1715                               SNDRV_PCM_RATE_22050 |   \
1716                               SNDRV_PCM_RATE_32000 |   \
1717                               SNDRV_PCM_RATE_44100 |   \
1718                               SNDRV_PCM_RATE_48000 |   \
1719                               SNDRV_PCM_RATE_88200 |   \
1720                               SNDRV_PCM_RATE_96000)
1721
1722#define WM8903_CAPTURE_RATES (SNDRV_PCM_RATE_8000 |\
1723                              SNDRV_PCM_RATE_11025 |    \
1724                              SNDRV_PCM_RATE_16000 |    \
1725                              SNDRV_PCM_RATE_22050 |    \
1726                              SNDRV_PCM_RATE_32000 |    \
1727                              SNDRV_PCM_RATE_44100 |    \
1728                              SNDRV_PCM_RATE_48000)
1729
1730#define WM8903_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
1731                        SNDRV_PCM_FMTBIT_S20_3LE |\
1732                        SNDRV_PCM_FMTBIT_S24_LE)
1733
1734static const struct snd_soc_dai_ops wm8903_dai_ops = {
1735        .hw_params      = wm8903_hw_params,
1736        .digital_mute   = wm8903_digital_mute,
1737        .set_fmt        = wm8903_set_dai_fmt,
1738        .set_sysclk     = wm8903_set_dai_sysclk,
1739};
1740
1741static struct snd_soc_dai_driver wm8903_dai = {
1742        .name = "wm8903-hifi",
1743        .playback = {
1744                .stream_name = "Playback",
1745                .channels_min = 2,
1746                .channels_max = 2,
1747                .rates = WM8903_PLAYBACK_RATES,
1748                .formats = WM8903_FORMATS,
1749        },
1750        .capture = {
1751                 .stream_name = "Capture",
1752                 .channels_min = 2,
1753                 .channels_max = 2,
1754                 .rates = WM8903_CAPTURE_RATES,
1755                 .formats = WM8903_FORMATS,
1756         },
1757        .ops = &wm8903_dai_ops,
1758        .symmetric_rates = 1,
1759};
1760
1761static int wm8903_suspend(struct snd_soc_codec *codec)
1762{
1763        wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
1764
1765        return 0;
1766}
1767
1768static int wm8903_resume(struct snd_soc_codec *codec)
1769{
1770        struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1771
1772        regcache_sync(wm8903->regmap);
1773
1774        wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1775
1776        return 0;
1777}
1778
1779#ifdef CONFIG_GPIOLIB
1780static inline struct wm8903_priv *gpio_to_wm8903(struct gpio_chip *chip)
1781{
1782        return container_of(chip, struct wm8903_priv, gpio_chip);
1783}
1784
1785static int wm8903_gpio_request(struct gpio_chip *chip, unsigned offset)
1786{
1787        if (offset >= WM8903_NUM_GPIO)
1788                return -EINVAL;
1789
1790        return 0;
1791}
1792
1793static int wm8903_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
1794{
1795        struct wm8903_priv *wm8903 = gpio_to_wm8903(chip);
1796        unsigned int mask, val;
1797        int ret;
1798
1799        mask = WM8903_GP1_FN_MASK | WM8903_GP1_DIR_MASK;
1800        val = (WM8903_GPn_FN_GPIO_INPUT << WM8903_GP1_FN_SHIFT) |
1801                WM8903_GP1_DIR;
1802
1803        ret = regmap_update_bits(wm8903->regmap,
1804                                 WM8903_GPIO_CONTROL_1 + offset, mask, val);
1805        if (ret < 0)
1806                return ret;
1807
1808        return 0;
1809}
1810
1811static int wm8903_gpio_get(struct gpio_chip *chip, unsigned offset)
1812{
1813        struct wm8903_priv *wm8903 = gpio_to_wm8903(chip);
1814        unsigned int reg;
1815
1816        regmap_read(wm8903->regmap, WM8903_GPIO_CONTROL_1 + offset, &reg);
1817
1818        return (reg & WM8903_GP1_LVL_MASK) >> WM8903_GP1_LVL_SHIFT;
1819}
1820
1821static int wm8903_gpio_direction_out(struct gpio_chip *chip,
1822                                     unsigned offset, int value)
1823{
1824        struct wm8903_priv *wm8903 = gpio_to_wm8903(chip);
1825        unsigned int mask, val;
1826        int ret;
1827
1828        mask = WM8903_GP1_FN_MASK | WM8903_GP1_DIR_MASK | WM8903_GP1_LVL_MASK;
1829        val = (WM8903_GPn_FN_GPIO_OUTPUT << WM8903_GP1_FN_SHIFT) |
1830                (value << WM8903_GP2_LVL_SHIFT);
1831
1832        ret = regmap_update_bits(wm8903->regmap,
1833                                 WM8903_GPIO_CONTROL_1 + offset, mask, val);
1834        if (ret < 0)
1835                return ret;
1836
1837        return 0;
1838}
1839
1840static void wm8903_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
1841{
1842        struct wm8903_priv *wm8903 = gpio_to_wm8903(chip);
1843
1844        regmap_update_bits(wm8903->regmap, WM8903_GPIO_CONTROL_1 + offset,
1845                           WM8903_GP1_LVL_MASK,
1846                           !!value << WM8903_GP1_LVL_SHIFT);
1847}
1848
1849static struct gpio_chip wm8903_template_chip = {
1850        .label                  = "wm8903",
1851        .owner                  = THIS_MODULE,
1852        .request                = wm8903_gpio_request,
1853        .direction_input        = wm8903_gpio_direction_in,
1854        .get                    = wm8903_gpio_get,
1855        .direction_output       = wm8903_gpio_direction_out,
1856        .set                    = wm8903_gpio_set,
1857        .can_sleep              = 1,
1858};
1859
1860static void wm8903_init_gpio(struct wm8903_priv *wm8903)
1861{
1862        struct wm8903_platform_data *pdata = wm8903->pdata;
1863        int ret;
1864
1865        wm8903->gpio_chip = wm8903_template_chip;
1866        wm8903->gpio_chip.ngpio = WM8903_NUM_GPIO;
1867        wm8903->gpio_chip.dev = wm8903->dev;
1868
1869        if (pdata->gpio_base)
1870                wm8903->gpio_chip.base = pdata->gpio_base;
1871        else
1872                wm8903->gpio_chip.base = -1;
1873
1874        ret = gpiochip_add(&wm8903->gpio_chip);
1875        if (ret != 0)
1876                dev_err(wm8903->dev, "Failed to add GPIOs: %d\n", ret);
1877}
1878
1879static void wm8903_free_gpio(struct wm8903_priv *wm8903)
1880{
1881        int ret;
1882
1883        ret = gpiochip_remove(&wm8903->gpio_chip);
1884        if (ret != 0)
1885                dev_err(wm8903->dev, "Failed to remove GPIOs: %d\n", ret);
1886}
1887#else
1888static void wm8903_init_gpio(struct wm8903_priv *wm8903)
1889{
1890}
1891
1892static void wm8903_free_gpio(struct wm8903_priv *wm8903)
1893{
1894}
1895#endif
1896
1897static int wm8903_probe(struct snd_soc_codec *codec)
1898{
1899        struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1900        int ret;
1901
1902        wm8903->codec = codec;
1903        codec->control_data = wm8903->regmap;
1904
1905        ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_REGMAP);
1906        if (ret != 0) {
1907                dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
1908                return ret;
1909        }
1910
1911        /* power on device */
1912        wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1913
1914        return ret;
1915}
1916
1917/* power down chip */
1918static int wm8903_remove(struct snd_soc_codec *codec)
1919{
1920        wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
1921
1922        return 0;
1923}
1924
1925static struct snd_soc_codec_driver soc_codec_dev_wm8903 = {
1926        .probe =        wm8903_probe,
1927        .remove =       wm8903_remove,
1928        .suspend =      wm8903_suspend,
1929        .resume =       wm8903_resume,
1930        .set_bias_level = wm8903_set_bias_level,
1931        .seq_notifier = wm8903_seq_notifier,
1932        .controls = wm8903_snd_controls,
1933        .num_controls = ARRAY_SIZE(wm8903_snd_controls),
1934        .dapm_widgets = wm8903_dapm_widgets,
1935        .num_dapm_widgets = ARRAY_SIZE(wm8903_dapm_widgets),
1936        .dapm_routes = wm8903_intercon,
1937        .num_dapm_routes = ARRAY_SIZE(wm8903_intercon),
1938};
1939
1940static const struct regmap_config wm8903_regmap = {
1941        .reg_bits = 8,
1942        .val_bits = 16,
1943
1944        .max_register = WM8903_MAX_REGISTER,
1945        .volatile_reg = wm8903_volatile_register,
1946        .readable_reg = wm8903_readable_register,
1947
1948        .cache_type = REGCACHE_RBTREE,
1949        .reg_defaults = wm8903_reg_defaults,
1950        .num_reg_defaults = ARRAY_SIZE(wm8903_reg_defaults),
1951};
1952
1953static int wm8903_set_pdata_irq_trigger(struct i2c_client *i2c,
1954                                        struct wm8903_platform_data *pdata)
1955{
1956        struct irq_data *irq_data = irq_get_irq_data(i2c->irq);
1957        if (!irq_data) {
1958                dev_err(&i2c->dev, "Invalid IRQ: %d\n",
1959                        i2c->irq);
1960                return -EINVAL;
1961        }
1962
1963        switch (irqd_get_trigger_type(irq_data)) {
1964        case IRQ_TYPE_NONE:
1965        default:
1966                /*
1967                * We assume the controller imposes no restrictions,
1968                * so we are able to select active-high
1969                */
1970                /* Fall-through */
1971        case IRQ_TYPE_LEVEL_HIGH:
1972                pdata->irq_active_low = false;
1973                break;
1974        case IRQ_TYPE_LEVEL_LOW:
1975                pdata->irq_active_low = true;
1976                break;
1977        }
1978
1979        return 0;
1980}
1981
1982static int wm8903_set_pdata_from_of(struct i2c_client *i2c,
1983                                    struct wm8903_platform_data *pdata)
1984{
1985        const struct device_node *np = i2c->dev.of_node;
1986        u32 val32;
1987        int i;
1988
1989        if (of_property_read_u32(np, "micdet-cfg", &val32) >= 0)
1990                pdata->micdet_cfg = val32;
1991
1992        if (of_property_read_u32(np, "micdet-delay", &val32) >= 0)
1993                pdata->micdet_delay = val32;
1994
1995        if (of_property_read_u32_array(np, "gpio-cfg", pdata->gpio_cfg,
1996                                       ARRAY_SIZE(pdata->gpio_cfg)) >= 0) {
1997                /*
1998                 * In device tree: 0 means "write 0",
1999                 * 0xffffffff means "don't touch".
2000                 *
2001                 * In platform data: 0 means "don't touch",
2002                 * 0x8000 means "write 0".
2003                 *
2004                 * Note: WM8903_GPIO_CONFIG_ZERO == 0x8000.
2005                 *
2006                 *  Convert from DT to pdata representation here,
2007                 * so no other code needs to change.
2008                 */
2009                for (i = 0; i < ARRAY_SIZE(pdata->gpio_cfg); i++) {
2010                        if (pdata->gpio_cfg[i] == 0) {
2011                                pdata->gpio_cfg[i] = WM8903_GPIO_CONFIG_ZERO;
2012                        } else if (pdata->gpio_cfg[i] == 0xffffffff) {
2013                                pdata->gpio_cfg[i] = 0;
2014                        } else if (pdata->gpio_cfg[i] > 0x7fff) {
2015                                dev_err(&i2c->dev, "Invalid gpio-cfg[%d] %x\n",
2016                                        i, pdata->gpio_cfg[i]);
2017                                return -EINVAL;
2018                        }
2019                }
2020        }
2021
2022        return 0;
2023}
2024
2025static int wm8903_i2c_probe(struct i2c_client *i2c,
2026                            const struct i2c_device_id *id)
2027{
2028        struct wm8903_platform_data *pdata = dev_get_platdata(&i2c->dev);
2029        struct wm8903_priv *wm8903;
2030        int trigger;
2031        bool mic_gpio = false;
2032        unsigned int val, irq_pol;
2033        int ret, i;
2034
2035        wm8903 = devm_kzalloc(&i2c->dev,  sizeof(struct wm8903_priv),
2036                              GFP_KERNEL);
2037        if (wm8903 == NULL)
2038                return -ENOMEM;
2039        wm8903->dev = &i2c->dev;
2040
2041        wm8903->regmap = devm_regmap_init_i2c(i2c, &wm8903_regmap);
2042        if (IS_ERR(wm8903->regmap)) {
2043                ret = PTR_ERR(wm8903->regmap);
2044                dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
2045                        ret);
2046                return ret;
2047        }
2048
2049        i2c_set_clientdata(i2c, wm8903);
2050
2051        /* If no platform data was supplied, create storage for defaults */
2052        if (pdata) {
2053                wm8903->pdata = pdata;
2054        } else {
2055                wm8903->pdata = devm_kzalloc(&i2c->dev,
2056                                        sizeof(struct wm8903_platform_data),
2057                                        GFP_KERNEL);
2058                if (wm8903->pdata == NULL) {
2059                        dev_err(&i2c->dev, "Failed to allocate pdata\n");
2060                        return -ENOMEM;
2061                }
2062
2063                if (i2c->irq) {
2064                        ret = wm8903_set_pdata_irq_trigger(i2c, wm8903->pdata);
2065                        if (ret != 0)
2066                                return ret;
2067                }
2068
2069                if (i2c->dev.of_node) {
2070                        ret = wm8903_set_pdata_from_of(i2c, wm8903->pdata);
2071                        if (ret != 0)
2072                                return ret;
2073                }
2074        }
2075
2076        pdata = wm8903->pdata;
2077
2078        ret = regmap_read(wm8903->regmap, WM8903_SW_RESET_AND_ID, &val);
2079        if (ret != 0) {
2080                dev_err(&i2c->dev, "Failed to read chip ID: %d\n", ret);
2081                goto err;
2082        }
2083        if (val != 0x8903) {
2084                dev_err(&i2c->dev, "Device with ID %x is not a WM8903\n", val);
2085                ret = -ENODEV;
2086                goto err;
2087        }
2088
2089        ret = regmap_read(wm8903->regmap, WM8903_REVISION_NUMBER, &val);
2090        if (ret != 0) {
2091                dev_err(&i2c->dev, "Failed to read chip revision: %d\n", ret);
2092                goto err;
2093        }
2094        dev_info(&i2c->dev, "WM8903 revision %c\n",
2095                 (val & WM8903_CHIP_REV_MASK) + 'A');
2096
2097        /* Reset the device */
2098        regmap_write(wm8903->regmap, WM8903_SW_RESET_AND_ID, 0x8903);
2099
2100        wm8903_init_gpio(wm8903);
2101
2102        /* Set up GPIO pin state, detect if any are MIC detect outputs */
2103        for (i = 0; i < ARRAY_SIZE(pdata->gpio_cfg); i++) {
2104                if ((!pdata->gpio_cfg[i]) ||
2105                    (pdata->gpio_cfg[i] > WM8903_GPIO_CONFIG_ZERO))
2106                        continue;
2107
2108                regmap_write(wm8903->regmap, WM8903_GPIO_CONTROL_1 + i,
2109                                pdata->gpio_cfg[i] & 0x7fff);
2110
2111                val = (pdata->gpio_cfg[i] & WM8903_GP1_FN_MASK)
2112                        >> WM8903_GP1_FN_SHIFT;
2113
2114                switch (val) {
2115                case WM8903_GPn_FN_MICBIAS_CURRENT_DETECT:
2116                case WM8903_GPn_FN_MICBIAS_SHORT_DETECT:
2117                        mic_gpio = true;
2118                        break;
2119                default:
2120                        break;
2121                }
2122        }
2123
2124        /* Set up microphone detection */
2125        regmap_write(wm8903->regmap, WM8903_MIC_BIAS_CONTROL_0,
2126                     pdata->micdet_cfg);
2127
2128        /* Microphone detection needs the WSEQ clock */
2129        if (pdata->micdet_cfg)
2130                regmap_update_bits(wm8903->regmap, WM8903_WRITE_SEQUENCER_0,
2131                                   WM8903_WSEQ_ENA, WM8903_WSEQ_ENA);
2132
2133        /* If microphone detection is enabled by pdata but
2134         * detected via IRQ then interrupts can be lost before
2135         * the machine driver has set up microphone detection
2136         * IRQs as the IRQs are clear on read.  The detection
2137         * will be enabled when the machine driver configures.
2138         */
2139        WARN_ON(!mic_gpio && (pdata->micdet_cfg & WM8903_MICDET_ENA));
2140
2141        wm8903->mic_delay = pdata->micdet_delay;
2142
2143        if (i2c->irq) {
2144                if (pdata->irq_active_low) {
2145                        trigger = IRQF_TRIGGER_LOW;
2146                        irq_pol = WM8903_IRQ_POL;
2147                } else {
2148                        trigger = IRQF_TRIGGER_HIGH;
2149                        irq_pol = 0;
2150                }
2151
2152                regmap_update_bits(wm8903->regmap, WM8903_INTERRUPT_CONTROL,
2153                                   WM8903_IRQ_POL, irq_pol);
2154
2155                ret = request_threaded_irq(i2c->irq, NULL, wm8903_irq,
2156                                           trigger | IRQF_ONESHOT,
2157                                           "wm8903", wm8903);
2158                if (ret != 0) {
2159                        dev_err(wm8903->dev, "Failed to request IRQ: %d\n",
2160                                ret);
2161                        return ret;
2162                }
2163
2164                /* Enable write sequencer interrupts */
2165                regmap_update_bits(wm8903->regmap,
2166                                   WM8903_INTERRUPT_STATUS_1_MASK,
2167                                   WM8903_IM_WSEQ_BUSY_EINT, 0);
2168        }
2169
2170        /* Latch volume update bits */
2171        regmap_update_bits(wm8903->regmap, WM8903_ADC_DIGITAL_VOLUME_LEFT,
2172                           WM8903_ADCVU, WM8903_ADCVU);
2173        regmap_update_bits(wm8903->regmap, WM8903_ADC_DIGITAL_VOLUME_RIGHT,
2174                           WM8903_ADCVU, WM8903_ADCVU);
2175
2176        regmap_update_bits(wm8903->regmap, WM8903_DAC_DIGITAL_VOLUME_LEFT,
2177                           WM8903_DACVU, WM8903_DACVU);
2178        regmap_update_bits(wm8903->regmap, WM8903_DAC_DIGITAL_VOLUME_RIGHT,
2179                           WM8903_DACVU, WM8903_DACVU);
2180
2181        regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT1_LEFT,
2182                           WM8903_HPOUTVU, WM8903_HPOUTVU);
2183        regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT1_RIGHT,
2184                           WM8903_HPOUTVU, WM8903_HPOUTVU);
2185
2186        regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT2_LEFT,
2187                           WM8903_LINEOUTVU, WM8903_LINEOUTVU);
2188        regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT2_RIGHT,
2189                           WM8903_LINEOUTVU, WM8903_LINEOUTVU);
2190
2191        regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT3_LEFT,
2192                           WM8903_SPKVU, WM8903_SPKVU);
2193        regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT3_RIGHT,
2194                           WM8903_SPKVU, WM8903_SPKVU);
2195
2196        /* Enable DAC soft mute by default */
2197        regmap_update_bits(wm8903->regmap, WM8903_DAC_DIGITAL_1,
2198                           WM8903_DAC_MUTEMODE | WM8903_DAC_MUTE,
2199                           WM8903_DAC_MUTEMODE | WM8903_DAC_MUTE);
2200
2201        ret = snd_soc_register_codec(&i2c->dev,
2202                        &soc_codec_dev_wm8903, &wm8903_dai, 1);
2203        if (ret != 0)
2204                goto err;
2205
2206        return 0;
2207err:
2208        return ret;
2209}
2210
2211static int wm8903_i2c_remove(struct i2c_client *client)
2212{
2213        struct wm8903_priv *wm8903 = i2c_get_clientdata(client);
2214
2215        if (client->irq)
2216                free_irq(client->irq, wm8903);
2217        wm8903_free_gpio(wm8903);
2218        snd_soc_unregister_codec(&client->dev);
2219
2220        return 0;
2221}
2222
2223static const struct of_device_id wm8903_of_match[] = {
2224        { .compatible = "wlf,wm8903", },
2225        {},
2226};
2227MODULE_DEVICE_TABLE(of, wm8903_of_match);
2228
2229static const struct i2c_device_id wm8903_i2c_id[] = {
2230        { "wm8903", 0 },
2231        { }
2232};
2233MODULE_DEVICE_TABLE(i2c, wm8903_i2c_id);
2234
2235static struct i2c_driver wm8903_i2c_driver = {
2236        .driver = {
2237                .name = "wm8903",
2238                .owner = THIS_MODULE,
2239                .of_match_table = wm8903_of_match,
2240        },
2241        .probe =    wm8903_i2c_probe,
2242        .remove =   wm8903_i2c_remove,
2243        .id_table = wm8903_i2c_id,
2244};
2245
2246module_i2c_driver(wm8903_i2c_driver);
2247
2248MODULE_DESCRIPTION("ASoC WM8903 driver");
2249MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.cm>");
2250MODULE_LICENSE("GPL");
2251