linux/sound/soc/codecs/tlv320aic3x.c
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   1/*
   2 * ALSA SoC TLV320AIC3X codec driver
   3 *
   4 * Author:      Vladimir Barinov, <vbarinov@embeddedalley.com>
   5 * Copyright:   (C) 2007 MontaVista Software, Inc., <source@mvista.com>
   6 *
   7 * Based on sound/soc/codecs/wm8753.c by Liam Girdwood
   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 * Notes:
  14 *  The AIC3X is a driver for a low power stereo audio
  15 *  codecs aic31, aic32, aic33.
  16 *
  17 *  It supports full aic33 codec functionality.
  18 *  The compatibility with aic32, aic31 is as follows:
  19 *        aic32        |        aic31
  20 *  ---------------------------------------
  21 *   MONO_LOUT -> N/A  |  MONO_LOUT -> N/A
  22 *                     |  IN1L -> LINE1L
  23 *                     |  IN1R -> LINE1R
  24 *                     |  IN2L -> LINE2L
  25 *                     |  IN2R -> LINE2R
  26 *                     |  MIC3L/R -> N/A
  27 *   truncated internal functionality in
  28 *   accordance with documentation
  29 *  ---------------------------------------
  30 *
  31 *  Hence the machine layer should disable unsupported inputs/outputs by
  32 *  snd_soc_dapm_disable_pin(codec, "MONO_LOUT"), etc.
  33 */
  34
  35#include <linux/module.h>
  36#include <linux/moduleparam.h>
  37#include <linux/init.h>
  38#include <linux/delay.h>
  39#include <linux/pm.h>
  40#include <linux/i2c.h>
  41#include <linux/platform_device.h>
  42#include <sound/core.h>
  43#include <sound/pcm.h>
  44#include <sound/pcm_params.h>
  45#include <sound/soc.h>
  46#include <sound/soc-dapm.h>
  47#include <sound/initval.h>
  48#include <sound/tlv.h>
  49
  50#include "tlv320aic3x.h"
  51
  52#define AIC3X_VERSION "0.2"
  53
  54/* codec private data */
  55struct aic3x_priv {
  56        struct snd_soc_codec codec;
  57        unsigned int sysclk;
  58        int master;
  59};
  60
  61/*
  62 * AIC3X register cache
  63 * We can't read the AIC3X register space when we are
  64 * using 2 wire for device control, so we cache them instead.
  65 * There is no point in caching the reset register
  66 */
  67static const u8 aic3x_reg[AIC3X_CACHEREGNUM] = {
  68        0x00, 0x00, 0x00, 0x10, /* 0 */
  69        0x04, 0x00, 0x00, 0x00, /* 4 */
  70        0x00, 0x00, 0x00, 0x01, /* 8 */
  71        0x00, 0x00, 0x00, 0x80, /* 12 */
  72        0x80, 0xff, 0xff, 0x78, /* 16 */
  73        0x78, 0x78, 0x78, 0x78, /* 20 */
  74        0x78, 0x00, 0x00, 0xfe, /* 24 */
  75        0x00, 0x00, 0xfe, 0x00, /* 28 */
  76        0x18, 0x18, 0x00, 0x00, /* 32 */
  77        0x00, 0x00, 0x00, 0x00, /* 36 */
  78        0x00, 0x00, 0x00, 0x80, /* 40 */
  79        0x80, 0x00, 0x00, 0x00, /* 44 */
  80        0x00, 0x00, 0x00, 0x04, /* 48 */
  81        0x00, 0x00, 0x00, 0x00, /* 52 */
  82        0x00, 0x00, 0x04, 0x00, /* 56 */
  83        0x00, 0x00, 0x00, 0x00, /* 60 */
  84        0x00, 0x04, 0x00, 0x00, /* 64 */
  85        0x00, 0x00, 0x00, 0x00, /* 68 */
  86        0x04, 0x00, 0x00, 0x00, /* 72 */
  87        0x00, 0x00, 0x00, 0x00, /* 76 */
  88        0x00, 0x00, 0x00, 0x00, /* 80 */
  89        0x00, 0x00, 0x00, 0x00, /* 84 */
  90        0x00, 0x00, 0x00, 0x00, /* 88 */
  91        0x00, 0x00, 0x00, 0x00, /* 92 */
  92        0x00, 0x00, 0x00, 0x00, /* 96 */
  93        0x00, 0x00, 0x02,       /* 100 */
  94};
  95
  96/*
  97 * read aic3x register cache
  98 */
  99static inline unsigned int aic3x_read_reg_cache(struct snd_soc_codec *codec,
 100                                                unsigned int reg)
 101{
 102        u8 *cache = codec->reg_cache;
 103        if (reg >= AIC3X_CACHEREGNUM)
 104                return -1;
 105        return cache[reg];
 106}
 107
 108/*
 109 * write aic3x register cache
 110 */
 111static inline void aic3x_write_reg_cache(struct snd_soc_codec *codec,
 112                                         u8 reg, u8 value)
 113{
 114        u8 *cache = codec->reg_cache;
 115        if (reg >= AIC3X_CACHEREGNUM)
 116                return;
 117        cache[reg] = value;
 118}
 119
 120/*
 121 * write to the aic3x register space
 122 */
 123static int aic3x_write(struct snd_soc_codec *codec, unsigned int reg,
 124                       unsigned int value)
 125{
 126        u8 data[2];
 127
 128        /* data is
 129         *   D15..D8 aic3x register offset
 130         *   D7...D0 register data
 131         */
 132        data[0] = reg & 0xff;
 133        data[1] = value & 0xff;
 134
 135        aic3x_write_reg_cache(codec, data[0], data[1]);
 136        if (codec->hw_write(codec->control_data, data, 2) == 2)
 137                return 0;
 138        else
 139                return -EIO;
 140}
 141
 142/*
 143 * read from the aic3x register space
 144 */
 145static int aic3x_read(struct snd_soc_codec *codec, unsigned int reg,
 146                      u8 *value)
 147{
 148        *value = reg & 0xff;
 149
 150        value[0] = i2c_smbus_read_byte_data(codec->control_data, value[0]);
 151
 152        aic3x_write_reg_cache(codec, reg, *value);
 153        return 0;
 154}
 155
 156#define SOC_DAPM_SINGLE_AIC3X(xname, reg, shift, mask, invert) \
 157{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 158        .info = snd_soc_info_volsw, \
 159        .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw_aic3x, \
 160        .private_value =  SOC_SINGLE_VALUE(reg, shift, mask, invert) }
 161
 162/*
 163 * All input lines are connected when !0xf and disconnected with 0xf bit field,
 164 * so we have to use specific dapm_put call for input mixer
 165 */
 166static int snd_soc_dapm_put_volsw_aic3x(struct snd_kcontrol *kcontrol,
 167                                        struct snd_ctl_elem_value *ucontrol)
 168{
 169        struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol);
 170        struct soc_mixer_control *mc =
 171                (struct soc_mixer_control *)kcontrol->private_value;
 172        unsigned int reg = mc->reg;
 173        unsigned int shift = mc->shift;
 174        int max = mc->max;
 175        unsigned int mask = (1 << fls(max)) - 1;
 176        unsigned int invert = mc->invert;
 177        unsigned short val, val_mask;
 178        int ret;
 179        struct snd_soc_dapm_path *path;
 180        int found = 0;
 181
 182        val = (ucontrol->value.integer.value[0] & mask);
 183
 184        mask = 0xf;
 185        if (val)
 186                val = mask;
 187
 188        if (invert)
 189                val = mask - val;
 190        val_mask = mask << shift;
 191        val = val << shift;
 192
 193        mutex_lock(&widget->codec->mutex);
 194
 195        if (snd_soc_test_bits(widget->codec, reg, val_mask, val)) {
 196                /* find dapm widget path assoc with kcontrol */
 197                list_for_each_entry(path, &widget->codec->dapm_paths, list) {
 198                        if (path->kcontrol != kcontrol)
 199                                continue;
 200
 201                        /* found, now check type */
 202                        found = 1;
 203                        if (val)
 204                                /* new connection */
 205                                path->connect = invert ? 0 : 1;
 206                        else
 207                                /* old connection must be powered down */
 208                                path->connect = invert ? 1 : 0;
 209                        break;
 210                }
 211
 212                if (found)
 213                        snd_soc_dapm_sync(widget->codec);
 214        }
 215
 216        ret = snd_soc_update_bits(widget->codec, reg, val_mask, val);
 217
 218        mutex_unlock(&widget->codec->mutex);
 219        return ret;
 220}
 221
 222static const char *aic3x_left_dac_mux[] = { "DAC_L1", "DAC_L3", "DAC_L2" };
 223static const char *aic3x_right_dac_mux[] = { "DAC_R1", "DAC_R3", "DAC_R2" };
 224static const char *aic3x_left_hpcom_mux[] =
 225    { "differential of HPLOUT", "constant VCM", "single-ended" };
 226static const char *aic3x_right_hpcom_mux[] =
 227    { "differential of HPROUT", "constant VCM", "single-ended",
 228      "differential of HPLCOM", "external feedback" };
 229static const char *aic3x_linein_mode_mux[] = { "single-ended", "differential" };
 230static const char *aic3x_adc_hpf[] =
 231    { "Disabled", "0.0045xFs", "0.0125xFs", "0.025xFs" };
 232
 233#define LDAC_ENUM       0
 234#define RDAC_ENUM       1
 235#define LHPCOM_ENUM     2
 236#define RHPCOM_ENUM     3
 237#define LINE1L_ENUM     4
 238#define LINE1R_ENUM     5
 239#define LINE2L_ENUM     6
 240#define LINE2R_ENUM     7
 241#define ADC_HPF_ENUM    8
 242
 243static const struct soc_enum aic3x_enum[] = {
 244        SOC_ENUM_SINGLE(DAC_LINE_MUX, 6, 3, aic3x_left_dac_mux),
 245        SOC_ENUM_SINGLE(DAC_LINE_MUX, 4, 3, aic3x_right_dac_mux),
 246        SOC_ENUM_SINGLE(HPLCOM_CFG, 4, 3, aic3x_left_hpcom_mux),
 247        SOC_ENUM_SINGLE(HPRCOM_CFG, 3, 5, aic3x_right_hpcom_mux),
 248        SOC_ENUM_SINGLE(LINE1L_2_LADC_CTRL, 7, 2, aic3x_linein_mode_mux),
 249        SOC_ENUM_SINGLE(LINE1R_2_RADC_CTRL, 7, 2, aic3x_linein_mode_mux),
 250        SOC_ENUM_SINGLE(LINE2L_2_LADC_CTRL, 7, 2, aic3x_linein_mode_mux),
 251        SOC_ENUM_SINGLE(LINE2R_2_RADC_CTRL, 7, 2, aic3x_linein_mode_mux),
 252        SOC_ENUM_DOUBLE(AIC3X_CODEC_DFILT_CTRL, 6, 4, 4, aic3x_adc_hpf),
 253};
 254
 255/*
 256 * DAC digital volumes. From -63.5 to 0 dB in 0.5 dB steps
 257 */
 258static DECLARE_TLV_DB_SCALE(dac_tlv, -6350, 50, 0);
 259/* ADC PGA gain volumes. From 0 to 59.5 dB in 0.5 dB steps */
 260static DECLARE_TLV_DB_SCALE(adc_tlv, 0, 50, 0);
 261/*
 262 * Output stage volumes. From -78.3 to 0 dB. Muted below -78.3 dB.
 263 * Step size is approximately 0.5 dB over most of the scale but increasing
 264 * near the very low levels.
 265 * Define dB scale so that it is mostly correct for range about -55 to 0 dB
 266 * but having increasing dB difference below that (and where it doesn't count
 267 * so much). This setting shows -50 dB (actual is -50.3 dB) for register
 268 * value 100 and -58.5 dB (actual is -78.3 dB) for register value 117.
 269 */
 270static DECLARE_TLV_DB_SCALE(output_stage_tlv, -5900, 50, 1);
 271
 272static const struct snd_kcontrol_new aic3x_snd_controls[] = {
 273        /* Output */
 274        SOC_DOUBLE_R_TLV("PCM Playback Volume",
 275                         LDAC_VOL, RDAC_VOL, 0, 0x7f, 1, dac_tlv),
 276
 277        SOC_DOUBLE_R_TLV("Line DAC Playback Volume",
 278                         DACL1_2_LLOPM_VOL, DACR1_2_RLOPM_VOL,
 279                         0, 118, 1, output_stage_tlv),
 280        SOC_SINGLE("LineL Playback Switch", LLOPM_CTRL, 3, 0x01, 0),
 281        SOC_SINGLE("LineR Playback Switch", RLOPM_CTRL, 3, 0x01, 0),
 282        SOC_DOUBLE_R_TLV("LineL DAC Playback Volume",
 283                         DACL1_2_LLOPM_VOL, DACR1_2_LLOPM_VOL,
 284                         0, 118, 1, output_stage_tlv),
 285        SOC_SINGLE_TLV("LineL Left PGA Bypass Playback Volume",
 286                       PGAL_2_LLOPM_VOL, 0, 118, 1, output_stage_tlv),
 287        SOC_SINGLE_TLV("LineR Right PGA Bypass Playback Volume",
 288                       PGAR_2_RLOPM_VOL, 0, 118, 1, output_stage_tlv),
 289        SOC_DOUBLE_R_TLV("LineL Line2 Bypass Playback Volume",
 290                         LINE2L_2_LLOPM_VOL, LINE2R_2_LLOPM_VOL,
 291                         0, 118, 1, output_stage_tlv),
 292        SOC_DOUBLE_R_TLV("LineR Line2 Bypass Playback Volume",
 293                         LINE2L_2_RLOPM_VOL, LINE2R_2_RLOPM_VOL,
 294                         0, 118, 1, output_stage_tlv),
 295
 296        SOC_DOUBLE_R_TLV("Mono DAC Playback Volume",
 297                         DACL1_2_MONOLOPM_VOL, DACR1_2_MONOLOPM_VOL,
 298                         0, 118, 1, output_stage_tlv),
 299        SOC_SINGLE("Mono DAC Playback Switch", MONOLOPM_CTRL, 3, 0x01, 0),
 300        SOC_DOUBLE_R_TLV("Mono PGA Bypass Playback Volume",
 301                         PGAL_2_MONOLOPM_VOL, PGAR_2_MONOLOPM_VOL,
 302                         0, 118, 1, output_stage_tlv),
 303        SOC_DOUBLE_R_TLV("Mono Line2 Bypass Playback Volume",
 304                         LINE2L_2_MONOLOPM_VOL, LINE2R_2_MONOLOPM_VOL,
 305                         0, 118, 1, output_stage_tlv),
 306
 307        SOC_DOUBLE_R_TLV("HP DAC Playback Volume",
 308                         DACL1_2_HPLOUT_VOL, DACR1_2_HPROUT_VOL,
 309                         0, 118, 1, output_stage_tlv),
 310        SOC_DOUBLE_R("HP DAC Playback Switch", HPLOUT_CTRL, HPROUT_CTRL, 3,
 311                     0x01, 0),
 312        SOC_DOUBLE_R_TLV("HP Right PGA Bypass Playback Volume",
 313                         PGAR_2_HPLOUT_VOL, PGAR_2_HPROUT_VOL,
 314                         0, 118, 1, output_stage_tlv),
 315        SOC_SINGLE_TLV("HPL PGA Bypass Playback Volume",
 316                       PGAL_2_HPLOUT_VOL, 0, 118, 1, output_stage_tlv),
 317        SOC_SINGLE_TLV("HPR PGA Bypass Playback Volume",
 318                       PGAL_2_HPROUT_VOL, 0, 118, 1, output_stage_tlv),
 319        SOC_DOUBLE_R_TLV("HP Line2 Bypass Playback Volume",
 320                         LINE2L_2_HPLOUT_VOL, LINE2R_2_HPROUT_VOL,
 321                         0, 118, 1, output_stage_tlv),
 322
 323        SOC_DOUBLE_R_TLV("HPCOM DAC Playback Volume",
 324                         DACL1_2_HPLCOM_VOL, DACR1_2_HPRCOM_VOL,
 325                         0, 118, 1, output_stage_tlv),
 326        SOC_DOUBLE_R("HPCOM DAC Playback Switch", HPLCOM_CTRL, HPRCOM_CTRL, 3,
 327                     0x01, 0),
 328        SOC_SINGLE_TLV("HPLCOM PGA Bypass Playback Volume",
 329                       PGAL_2_HPLCOM_VOL, 0, 118, 1, output_stage_tlv),
 330        SOC_SINGLE_TLV("HPRCOM PGA Bypass Playback Volume",
 331                       PGAL_2_HPRCOM_VOL, 0, 118, 1, output_stage_tlv),
 332        SOC_DOUBLE_R_TLV("HPCOM Line2 Bypass Playback Volume",
 333                         LINE2L_2_HPLCOM_VOL, LINE2R_2_HPRCOM_VOL,
 334                         0, 118, 1, output_stage_tlv),
 335
 336        /*
 337         * Note: enable Automatic input Gain Controller with care. It can
 338         * adjust PGA to max value when ADC is on and will never go back.
 339        */
 340        SOC_DOUBLE_R("AGC Switch", LAGC_CTRL_A, RAGC_CTRL_A, 7, 0x01, 0),
 341
 342        /* Input */
 343        SOC_DOUBLE_R_TLV("PGA Capture Volume", LADC_VOL, RADC_VOL,
 344                         0, 119, 0, adc_tlv),
 345        SOC_DOUBLE_R("PGA Capture Switch", LADC_VOL, RADC_VOL, 7, 0x01, 1),
 346
 347        SOC_ENUM("ADC HPF Cut-off", aic3x_enum[ADC_HPF_ENUM]),
 348};
 349
 350/* Left DAC Mux */
 351static const struct snd_kcontrol_new aic3x_left_dac_mux_controls =
 352SOC_DAPM_ENUM("Route", aic3x_enum[LDAC_ENUM]);
 353
 354/* Right DAC Mux */
 355static const struct snd_kcontrol_new aic3x_right_dac_mux_controls =
 356SOC_DAPM_ENUM("Route", aic3x_enum[RDAC_ENUM]);
 357
 358/* Left HPCOM Mux */
 359static const struct snd_kcontrol_new aic3x_left_hpcom_mux_controls =
 360SOC_DAPM_ENUM("Route", aic3x_enum[LHPCOM_ENUM]);
 361
 362/* Right HPCOM Mux */
 363static const struct snd_kcontrol_new aic3x_right_hpcom_mux_controls =
 364SOC_DAPM_ENUM("Route", aic3x_enum[RHPCOM_ENUM]);
 365
 366/* Left DAC_L1 Mixer */
 367static const struct snd_kcontrol_new aic3x_left_dac_mixer_controls[] = {
 368        SOC_DAPM_SINGLE("LineL Switch", DACL1_2_LLOPM_VOL, 7, 1, 0),
 369        SOC_DAPM_SINGLE("LineR Switch", DACL1_2_RLOPM_VOL, 7, 1, 0),
 370        SOC_DAPM_SINGLE("Mono Switch", DACL1_2_MONOLOPM_VOL, 7, 1, 0),
 371        SOC_DAPM_SINGLE("HP Switch", DACL1_2_HPLOUT_VOL, 7, 1, 0),
 372        SOC_DAPM_SINGLE("HPCOM Switch", DACL1_2_HPLCOM_VOL, 7, 1, 0),
 373};
 374
 375/* Right DAC_R1 Mixer */
 376static const struct snd_kcontrol_new aic3x_right_dac_mixer_controls[] = {
 377        SOC_DAPM_SINGLE("LineL Switch", DACR1_2_LLOPM_VOL, 7, 1, 0),
 378        SOC_DAPM_SINGLE("LineR Switch", DACR1_2_RLOPM_VOL, 7, 1, 0),
 379        SOC_DAPM_SINGLE("Mono Switch", DACR1_2_MONOLOPM_VOL, 7, 1, 0),
 380        SOC_DAPM_SINGLE("HP Switch", DACR1_2_HPROUT_VOL, 7, 1, 0),
 381        SOC_DAPM_SINGLE("HPCOM Switch", DACR1_2_HPRCOM_VOL, 7, 1, 0),
 382};
 383
 384/* Left PGA Mixer */
 385static const struct snd_kcontrol_new aic3x_left_pga_mixer_controls[] = {
 386        SOC_DAPM_SINGLE_AIC3X("Line1L Switch", LINE1L_2_LADC_CTRL, 3, 1, 1),
 387        SOC_DAPM_SINGLE_AIC3X("Line1R Switch", LINE1R_2_LADC_CTRL, 3, 1, 1),
 388        SOC_DAPM_SINGLE_AIC3X("Line2L Switch", LINE2L_2_LADC_CTRL, 3, 1, 1),
 389        SOC_DAPM_SINGLE_AIC3X("Mic3L Switch", MIC3LR_2_LADC_CTRL, 4, 1, 1),
 390        SOC_DAPM_SINGLE_AIC3X("Mic3R Switch", MIC3LR_2_LADC_CTRL, 0, 1, 1),
 391};
 392
 393/* Right PGA Mixer */
 394static const struct snd_kcontrol_new aic3x_right_pga_mixer_controls[] = {
 395        SOC_DAPM_SINGLE_AIC3X("Line1R Switch", LINE1R_2_RADC_CTRL, 3, 1, 1),
 396        SOC_DAPM_SINGLE_AIC3X("Line1L Switch", LINE1L_2_RADC_CTRL, 3, 1, 1),
 397        SOC_DAPM_SINGLE_AIC3X("Line2R Switch", LINE2R_2_RADC_CTRL, 3, 1, 1),
 398        SOC_DAPM_SINGLE_AIC3X("Mic3L Switch", MIC3LR_2_RADC_CTRL, 4, 1, 1),
 399        SOC_DAPM_SINGLE_AIC3X("Mic3R Switch", MIC3LR_2_RADC_CTRL, 0, 1, 1),
 400};
 401
 402/* Left Line1 Mux */
 403static const struct snd_kcontrol_new aic3x_left_line1_mux_controls =
 404SOC_DAPM_ENUM("Route", aic3x_enum[LINE1L_ENUM]);
 405
 406/* Right Line1 Mux */
 407static const struct snd_kcontrol_new aic3x_right_line1_mux_controls =
 408SOC_DAPM_ENUM("Route", aic3x_enum[LINE1R_ENUM]);
 409
 410/* Left Line2 Mux */
 411static const struct snd_kcontrol_new aic3x_left_line2_mux_controls =
 412SOC_DAPM_ENUM("Route", aic3x_enum[LINE2L_ENUM]);
 413
 414/* Right Line2 Mux */
 415static const struct snd_kcontrol_new aic3x_right_line2_mux_controls =
 416SOC_DAPM_ENUM("Route", aic3x_enum[LINE2R_ENUM]);
 417
 418/* Left PGA Bypass Mixer */
 419static const struct snd_kcontrol_new aic3x_left_pga_bp_mixer_controls[] = {
 420        SOC_DAPM_SINGLE("LineL Switch", PGAL_2_LLOPM_VOL, 7, 1, 0),
 421        SOC_DAPM_SINGLE("LineR Switch", PGAL_2_RLOPM_VOL, 7, 1, 0),
 422        SOC_DAPM_SINGLE("Mono Switch", PGAL_2_MONOLOPM_VOL, 7, 1, 0),
 423        SOC_DAPM_SINGLE("HPL Switch", PGAL_2_HPLOUT_VOL, 7, 1, 0),
 424        SOC_DAPM_SINGLE("HPR Switch", PGAL_2_HPROUT_VOL, 7, 1, 0),
 425        SOC_DAPM_SINGLE("HPLCOM Switch", PGAL_2_HPLCOM_VOL, 7, 1, 0),
 426        SOC_DAPM_SINGLE("HPRCOM Switch", PGAL_2_HPRCOM_VOL, 7, 1, 0),
 427};
 428
 429/* Right PGA Bypass Mixer */
 430static const struct snd_kcontrol_new aic3x_right_pga_bp_mixer_controls[] = {
 431        SOC_DAPM_SINGLE("LineL Switch", PGAR_2_LLOPM_VOL, 7, 1, 0),
 432        SOC_DAPM_SINGLE("LineR Switch", PGAR_2_RLOPM_VOL, 7, 1, 0),
 433        SOC_DAPM_SINGLE("Mono Switch", PGAR_2_MONOLOPM_VOL, 7, 1, 0),
 434        SOC_DAPM_SINGLE("HPL Switch", PGAR_2_HPLOUT_VOL, 7, 1, 0),
 435        SOC_DAPM_SINGLE("HPR Switch", PGAR_2_HPROUT_VOL, 7, 1, 0),
 436        SOC_DAPM_SINGLE("HPLCOM Switch", PGAR_2_HPLCOM_VOL, 7, 1, 0),
 437        SOC_DAPM_SINGLE("HPRCOM Switch", PGAR_2_HPRCOM_VOL, 7, 1, 0),
 438};
 439
 440/* Left Line2 Bypass Mixer */
 441static const struct snd_kcontrol_new aic3x_left_line2_bp_mixer_controls[] = {
 442        SOC_DAPM_SINGLE("LineL Switch", LINE2L_2_LLOPM_VOL, 7, 1, 0),
 443        SOC_DAPM_SINGLE("LineR Switch", LINE2L_2_RLOPM_VOL, 7, 1, 0),
 444        SOC_DAPM_SINGLE("Mono Switch", LINE2L_2_MONOLOPM_VOL, 7, 1, 0),
 445        SOC_DAPM_SINGLE("HP Switch", LINE2L_2_HPLOUT_VOL, 7, 1, 0),
 446        SOC_DAPM_SINGLE("HPLCOM Switch", LINE2L_2_HPLCOM_VOL, 7, 1, 0),
 447};
 448
 449/* Right Line2 Bypass Mixer */
 450static const struct snd_kcontrol_new aic3x_right_line2_bp_mixer_controls[] = {
 451        SOC_DAPM_SINGLE("LineL Switch", LINE2R_2_LLOPM_VOL, 7, 1, 0),
 452        SOC_DAPM_SINGLE("LineR Switch", LINE2R_2_RLOPM_VOL, 7, 1, 0),
 453        SOC_DAPM_SINGLE("Mono Switch", LINE2R_2_MONOLOPM_VOL, 7, 1, 0),
 454        SOC_DAPM_SINGLE("HP Switch", LINE2R_2_HPROUT_VOL, 7, 1, 0),
 455        SOC_DAPM_SINGLE("HPRCOM Switch", LINE2R_2_HPRCOM_VOL, 7, 1, 0),
 456};
 457
 458static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
 459        /* Left DAC to Left Outputs */
 460        SND_SOC_DAPM_DAC("Left DAC", "Left Playback", DAC_PWR, 7, 0),
 461        SND_SOC_DAPM_MUX("Left DAC Mux", SND_SOC_NOPM, 0, 0,
 462                         &aic3x_left_dac_mux_controls),
 463        SND_SOC_DAPM_MIXER("Left DAC_L1 Mixer", SND_SOC_NOPM, 0, 0,
 464                           &aic3x_left_dac_mixer_controls[0],
 465                           ARRAY_SIZE(aic3x_left_dac_mixer_controls)),
 466        SND_SOC_DAPM_MUX("Left HPCOM Mux", SND_SOC_NOPM, 0, 0,
 467                         &aic3x_left_hpcom_mux_controls),
 468        SND_SOC_DAPM_PGA("Left Line Out", LLOPM_CTRL, 0, 0, NULL, 0),
 469        SND_SOC_DAPM_PGA("Left HP Out", HPLOUT_CTRL, 0, 0, NULL, 0),
 470        SND_SOC_DAPM_PGA("Left HP Com", HPLCOM_CTRL, 0, 0, NULL, 0),
 471
 472        /* Right DAC to Right Outputs */
 473        SND_SOC_DAPM_DAC("Right DAC", "Right Playback", DAC_PWR, 6, 0),
 474        SND_SOC_DAPM_MUX("Right DAC Mux", SND_SOC_NOPM, 0, 0,
 475                         &aic3x_right_dac_mux_controls),
 476        SND_SOC_DAPM_MIXER("Right DAC_R1 Mixer", SND_SOC_NOPM, 0, 0,
 477                           &aic3x_right_dac_mixer_controls[0],
 478                           ARRAY_SIZE(aic3x_right_dac_mixer_controls)),
 479        SND_SOC_DAPM_MUX("Right HPCOM Mux", SND_SOC_NOPM, 0, 0,
 480                         &aic3x_right_hpcom_mux_controls),
 481        SND_SOC_DAPM_PGA("Right Line Out", RLOPM_CTRL, 0, 0, NULL, 0),
 482        SND_SOC_DAPM_PGA("Right HP Out", HPROUT_CTRL, 0, 0, NULL, 0),
 483        SND_SOC_DAPM_PGA("Right HP Com", HPRCOM_CTRL, 0, 0, NULL, 0),
 484
 485        /* Mono Output */
 486        SND_SOC_DAPM_PGA("Mono Out", MONOLOPM_CTRL, 0, 0, NULL, 0),
 487
 488        /* Inputs to Left ADC */
 489        SND_SOC_DAPM_ADC("Left ADC", "Left Capture", LINE1L_2_LADC_CTRL, 2, 0),
 490        SND_SOC_DAPM_MIXER("Left PGA Mixer", SND_SOC_NOPM, 0, 0,
 491                           &aic3x_left_pga_mixer_controls[0],
 492                           ARRAY_SIZE(aic3x_left_pga_mixer_controls)),
 493        SND_SOC_DAPM_MUX("Left Line1L Mux", SND_SOC_NOPM, 0, 0,
 494                         &aic3x_left_line1_mux_controls),
 495        SND_SOC_DAPM_MUX("Left Line1R Mux", SND_SOC_NOPM, 0, 0,
 496                         &aic3x_left_line1_mux_controls),
 497        SND_SOC_DAPM_MUX("Left Line2L Mux", SND_SOC_NOPM, 0, 0,
 498                         &aic3x_left_line2_mux_controls),
 499
 500        /* Inputs to Right ADC */
 501        SND_SOC_DAPM_ADC("Right ADC", "Right Capture",
 502                         LINE1R_2_RADC_CTRL, 2, 0),
 503        SND_SOC_DAPM_MIXER("Right PGA Mixer", SND_SOC_NOPM, 0, 0,
 504                           &aic3x_right_pga_mixer_controls[0],
 505                           ARRAY_SIZE(aic3x_right_pga_mixer_controls)),
 506        SND_SOC_DAPM_MUX("Right Line1L Mux", SND_SOC_NOPM, 0, 0,
 507                         &aic3x_right_line1_mux_controls),
 508        SND_SOC_DAPM_MUX("Right Line1R Mux", SND_SOC_NOPM, 0, 0,
 509                         &aic3x_right_line1_mux_controls),
 510        SND_SOC_DAPM_MUX("Right Line2R Mux", SND_SOC_NOPM, 0, 0,
 511                         &aic3x_right_line2_mux_controls),
 512
 513        /*
 514         * Not a real mic bias widget but similar function. This is for dynamic
 515         * control of GPIO1 digital mic modulator clock output function when
 516         * using digital mic.
 517         */
 518        SND_SOC_DAPM_REG(snd_soc_dapm_micbias, "GPIO1 dmic modclk",
 519                         AIC3X_GPIO1_REG, 4, 0xf,
 520                         AIC3X_GPIO1_FUNC_DIGITAL_MIC_MODCLK,
 521                         AIC3X_GPIO1_FUNC_DISABLED),
 522
 523        /*
 524         * Also similar function like mic bias. Selects digital mic with
 525         * configurable oversampling rate instead of ADC converter.
 526         */
 527        SND_SOC_DAPM_REG(snd_soc_dapm_micbias, "DMic Rate 128",
 528                         AIC3X_ASD_INTF_CTRLA, 0, 3, 1, 0),
 529        SND_SOC_DAPM_REG(snd_soc_dapm_micbias, "DMic Rate 64",
 530                         AIC3X_ASD_INTF_CTRLA, 0, 3, 2, 0),
 531        SND_SOC_DAPM_REG(snd_soc_dapm_micbias, "DMic Rate 32",
 532                         AIC3X_ASD_INTF_CTRLA, 0, 3, 3, 0),
 533
 534        /* Mic Bias */
 535        SND_SOC_DAPM_REG(snd_soc_dapm_micbias, "Mic Bias 2V",
 536                         MICBIAS_CTRL, 6, 3, 1, 0),
 537        SND_SOC_DAPM_REG(snd_soc_dapm_micbias, "Mic Bias 2.5V",
 538                         MICBIAS_CTRL, 6, 3, 2, 0),
 539        SND_SOC_DAPM_REG(snd_soc_dapm_micbias, "Mic Bias AVDD",
 540                         MICBIAS_CTRL, 6, 3, 3, 0),
 541
 542        /* Left PGA to Left Output bypass */
 543        SND_SOC_DAPM_MIXER("Left PGA Bypass Mixer", SND_SOC_NOPM, 0, 0,
 544                           &aic3x_left_pga_bp_mixer_controls[0],
 545                           ARRAY_SIZE(aic3x_left_pga_bp_mixer_controls)),
 546
 547        /* Right PGA to Right Output bypass */
 548        SND_SOC_DAPM_MIXER("Right PGA Bypass Mixer", SND_SOC_NOPM, 0, 0,
 549                           &aic3x_right_pga_bp_mixer_controls[0],
 550                           ARRAY_SIZE(aic3x_right_pga_bp_mixer_controls)),
 551
 552        /* Left Line2 to Left Output bypass */
 553        SND_SOC_DAPM_MIXER("Left Line2 Bypass Mixer", SND_SOC_NOPM, 0, 0,
 554                           &aic3x_left_line2_bp_mixer_controls[0],
 555                           ARRAY_SIZE(aic3x_left_line2_bp_mixer_controls)),
 556
 557        /* Right Line2 to Right Output bypass */
 558        SND_SOC_DAPM_MIXER("Right Line2 Bypass Mixer", SND_SOC_NOPM, 0, 0,
 559                           &aic3x_right_line2_bp_mixer_controls[0],
 560                           ARRAY_SIZE(aic3x_right_line2_bp_mixer_controls)),
 561
 562        SND_SOC_DAPM_OUTPUT("LLOUT"),
 563        SND_SOC_DAPM_OUTPUT("RLOUT"),
 564        SND_SOC_DAPM_OUTPUT("MONO_LOUT"),
 565        SND_SOC_DAPM_OUTPUT("HPLOUT"),
 566        SND_SOC_DAPM_OUTPUT("HPROUT"),
 567        SND_SOC_DAPM_OUTPUT("HPLCOM"),
 568        SND_SOC_DAPM_OUTPUT("HPRCOM"),
 569
 570        SND_SOC_DAPM_INPUT("MIC3L"),
 571        SND_SOC_DAPM_INPUT("MIC3R"),
 572        SND_SOC_DAPM_INPUT("LINE1L"),
 573        SND_SOC_DAPM_INPUT("LINE1R"),
 574        SND_SOC_DAPM_INPUT("LINE2L"),
 575        SND_SOC_DAPM_INPUT("LINE2R"),
 576};
 577
 578static const struct snd_soc_dapm_route intercon[] = {
 579        /* Left Output */
 580        {"Left DAC Mux", "DAC_L1", "Left DAC"},
 581        {"Left DAC Mux", "DAC_L2", "Left DAC"},
 582        {"Left DAC Mux", "DAC_L3", "Left DAC"},
 583
 584        {"Left DAC_L1 Mixer", "LineL Switch", "Left DAC Mux"},
 585        {"Left DAC_L1 Mixer", "LineR Switch", "Left DAC Mux"},
 586        {"Left DAC_L1 Mixer", "Mono Switch", "Left DAC Mux"},
 587        {"Left DAC_L1 Mixer", "HP Switch", "Left DAC Mux"},
 588        {"Left DAC_L1 Mixer", "HPCOM Switch", "Left DAC Mux"},
 589        {"Left Line Out", NULL, "Left DAC Mux"},
 590        {"Left HP Out", NULL, "Left DAC Mux"},
 591
 592        {"Left HPCOM Mux", "differential of HPLOUT", "Left DAC_L1 Mixer"},
 593        {"Left HPCOM Mux", "constant VCM", "Left DAC_L1 Mixer"},
 594        {"Left HPCOM Mux", "single-ended", "Left DAC_L1 Mixer"},
 595
 596        {"Left Line Out", NULL, "Left DAC_L1 Mixer"},
 597        {"Mono Out", NULL, "Left DAC_L1 Mixer"},
 598        {"Left HP Out", NULL, "Left DAC_L1 Mixer"},
 599        {"Left HP Com", NULL, "Left HPCOM Mux"},
 600
 601        {"LLOUT", NULL, "Left Line Out"},
 602        {"LLOUT", NULL, "Left Line Out"},
 603        {"HPLOUT", NULL, "Left HP Out"},
 604        {"HPLCOM", NULL, "Left HP Com"},
 605
 606        /* Right Output */
 607        {"Right DAC Mux", "DAC_R1", "Right DAC"},
 608        {"Right DAC Mux", "DAC_R2", "Right DAC"},
 609        {"Right DAC Mux", "DAC_R3", "Right DAC"},
 610
 611        {"Right DAC_R1 Mixer", "LineL Switch", "Right DAC Mux"},
 612        {"Right DAC_R1 Mixer", "LineR Switch", "Right DAC Mux"},
 613        {"Right DAC_R1 Mixer", "Mono Switch", "Right DAC Mux"},
 614        {"Right DAC_R1 Mixer", "HP Switch", "Right DAC Mux"},
 615        {"Right DAC_R1 Mixer", "HPCOM Switch", "Right DAC Mux"},
 616        {"Right Line Out", NULL, "Right DAC Mux"},
 617        {"Right HP Out", NULL, "Right DAC Mux"},
 618
 619        {"Right HPCOM Mux", "differential of HPROUT", "Right DAC_R1 Mixer"},
 620        {"Right HPCOM Mux", "constant VCM", "Right DAC_R1 Mixer"},
 621        {"Right HPCOM Mux", "single-ended", "Right DAC_R1 Mixer"},
 622        {"Right HPCOM Mux", "differential of HPLCOM", "Right DAC_R1 Mixer"},
 623        {"Right HPCOM Mux", "external feedback", "Right DAC_R1 Mixer"},
 624
 625        {"Right Line Out", NULL, "Right DAC_R1 Mixer"},
 626        {"Mono Out", NULL, "Right DAC_R1 Mixer"},
 627        {"Right HP Out", NULL, "Right DAC_R1 Mixer"},
 628        {"Right HP Com", NULL, "Right HPCOM Mux"},
 629
 630        {"RLOUT", NULL, "Right Line Out"},
 631        {"RLOUT", NULL, "Right Line Out"},
 632        {"HPROUT", NULL, "Right HP Out"},
 633        {"HPRCOM", NULL, "Right HP Com"},
 634
 635        /* Mono Output */
 636        {"MONO_LOUT", NULL, "Mono Out"},
 637        {"MONO_LOUT", NULL, "Mono Out"},
 638
 639        /* Left Input */
 640        {"Left Line1L Mux", "single-ended", "LINE1L"},
 641        {"Left Line1L Mux", "differential", "LINE1L"},
 642
 643        {"Left Line2L Mux", "single-ended", "LINE2L"},
 644        {"Left Line2L Mux", "differential", "LINE2L"},
 645
 646        {"Left PGA Mixer", "Line1L Switch", "Left Line1L Mux"},
 647        {"Left PGA Mixer", "Line1R Switch", "Left Line1R Mux"},
 648        {"Left PGA Mixer", "Line2L Switch", "Left Line2L Mux"},
 649        {"Left PGA Mixer", "Mic3L Switch", "MIC3L"},
 650        {"Left PGA Mixer", "Mic3R Switch", "MIC3R"},
 651
 652        {"Left ADC", NULL, "Left PGA Mixer"},
 653        {"Left ADC", NULL, "GPIO1 dmic modclk"},
 654
 655        /* Right Input */
 656        {"Right Line1R Mux", "single-ended", "LINE1R"},
 657        {"Right Line1R Mux", "differential", "LINE1R"},
 658
 659        {"Right Line2R Mux", "single-ended", "LINE2R"},
 660        {"Right Line2R Mux", "differential", "LINE2R"},
 661
 662        {"Right PGA Mixer", "Line1L Switch", "Right Line1L Mux"},
 663        {"Right PGA Mixer", "Line1R Switch", "Right Line1R Mux"},
 664        {"Right PGA Mixer", "Line2R Switch", "Right Line2R Mux"},
 665        {"Right PGA Mixer", "Mic3L Switch", "MIC3L"},
 666        {"Right PGA Mixer", "Mic3R Switch", "MIC3R"},
 667
 668        {"Right ADC", NULL, "Right PGA Mixer"},
 669        {"Right ADC", NULL, "GPIO1 dmic modclk"},
 670
 671        /* Left PGA Bypass */
 672        {"Left PGA Bypass Mixer", "LineL Switch", "Left PGA Mixer"},
 673        {"Left PGA Bypass Mixer", "LineR Switch", "Left PGA Mixer"},
 674        {"Left PGA Bypass Mixer", "Mono Switch", "Left PGA Mixer"},
 675        {"Left PGA Bypass Mixer", "HPL Switch", "Left PGA Mixer"},
 676        {"Left PGA Bypass Mixer", "HPR Switch", "Left PGA Mixer"},
 677        {"Left PGA Bypass Mixer", "HPLCOM Switch", "Left PGA Mixer"},
 678        {"Left PGA Bypass Mixer", "HPRCOM Switch", "Left PGA Mixer"},
 679
 680        {"Left HPCOM Mux", "differential of HPLOUT", "Left PGA Bypass Mixer"},
 681        {"Left HPCOM Mux", "constant VCM", "Left PGA Bypass Mixer"},
 682        {"Left HPCOM Mux", "single-ended", "Left PGA Bypass Mixer"},
 683
 684        {"Left Line Out", NULL, "Left PGA Bypass Mixer"},
 685        {"Mono Out", NULL, "Left PGA Bypass Mixer"},
 686        {"Left HP Out", NULL, "Left PGA Bypass Mixer"},
 687
 688        /* Right PGA Bypass */
 689        {"Right PGA Bypass Mixer", "LineL Switch", "Right PGA Mixer"},
 690        {"Right PGA Bypass Mixer", "LineR Switch", "Right PGA Mixer"},
 691        {"Right PGA Bypass Mixer", "Mono Switch", "Right PGA Mixer"},
 692        {"Right PGA Bypass Mixer", "HPL Switch", "Right PGA Mixer"},
 693        {"Right PGA Bypass Mixer", "HPR Switch", "Right PGA Mixer"},
 694        {"Right PGA Bypass Mixer", "HPLCOM Switch", "Right PGA Mixer"},
 695        {"Right PGA Bypass Mixer", "HPRCOM Switch", "Right PGA Mixer"},
 696
 697        {"Right HPCOM Mux", "differential of HPROUT", "Right PGA Bypass Mixer"},
 698        {"Right HPCOM Mux", "constant VCM", "Right PGA Bypass Mixer"},
 699        {"Right HPCOM Mux", "single-ended", "Right PGA Bypass Mixer"},
 700        {"Right HPCOM Mux", "differential of HPLCOM", "Right PGA Bypass Mixer"},
 701        {"Right HPCOM Mux", "external feedback", "Right PGA Bypass Mixer"},
 702
 703        {"Right Line Out", NULL, "Right PGA Bypass Mixer"},
 704        {"Mono Out", NULL, "Right PGA Bypass Mixer"},
 705        {"Right HP Out", NULL, "Right PGA Bypass Mixer"},
 706
 707        /* Left Line2 Bypass */
 708        {"Left Line2 Bypass Mixer", "LineL Switch", "Left Line2L Mux"},
 709        {"Left Line2 Bypass Mixer", "LineR Switch", "Left Line2L Mux"},
 710        {"Left Line2 Bypass Mixer", "Mono Switch", "Left Line2L Mux"},
 711        {"Left Line2 Bypass Mixer", "HP Switch", "Left Line2L Mux"},
 712        {"Left Line2 Bypass Mixer", "HPLCOM Switch", "Left Line2L Mux"},
 713
 714        {"Left HPCOM Mux", "differential of HPLOUT", "Left Line2 Bypass Mixer"},
 715        {"Left HPCOM Mux", "constant VCM", "Left Line2 Bypass Mixer"},
 716        {"Left HPCOM Mux", "single-ended", "Left Line2 Bypass Mixer"},
 717
 718        {"Left Line Out", NULL, "Left Line2 Bypass Mixer"},
 719        {"Mono Out", NULL, "Left Line2 Bypass Mixer"},
 720        {"Left HP Out", NULL, "Left Line2 Bypass Mixer"},
 721
 722        /* Right Line2 Bypass */
 723        {"Right Line2 Bypass Mixer", "LineL Switch", "Right Line2R Mux"},
 724        {"Right Line2 Bypass Mixer", "LineR Switch", "Right Line2R Mux"},
 725        {"Right Line2 Bypass Mixer", "Mono Switch", "Right Line2R Mux"},
 726        {"Right Line2 Bypass Mixer", "HP Switch", "Right Line2R Mux"},
 727        {"Right Line2 Bypass Mixer", "HPRCOM Switch", "Right Line2R Mux"},
 728
 729        {"Right HPCOM Mux", "differential of HPROUT", "Right Line2 Bypass Mixer"},
 730        {"Right HPCOM Mux", "constant VCM", "Right Line2 Bypass Mixer"},
 731        {"Right HPCOM Mux", "single-ended", "Right Line2 Bypass Mixer"},
 732        {"Right HPCOM Mux", "differential of HPLCOM", "Right Line2 Bypass Mixer"},
 733        {"Right HPCOM Mux", "external feedback", "Right Line2 Bypass Mixer"},
 734
 735        {"Right Line Out", NULL, "Right Line2 Bypass Mixer"},
 736        {"Mono Out", NULL, "Right Line2 Bypass Mixer"},
 737        {"Right HP Out", NULL, "Right Line2 Bypass Mixer"},
 738
 739        /*
 740         * Logical path between digital mic enable and GPIO1 modulator clock
 741         * output function
 742         */
 743        {"GPIO1 dmic modclk", NULL, "DMic Rate 128"},
 744        {"GPIO1 dmic modclk", NULL, "DMic Rate 64"},
 745        {"GPIO1 dmic modclk", NULL, "DMic Rate 32"},
 746};
 747
 748static int aic3x_add_widgets(struct snd_soc_codec *codec)
 749{
 750        snd_soc_dapm_new_controls(codec, aic3x_dapm_widgets,
 751                                  ARRAY_SIZE(aic3x_dapm_widgets));
 752
 753        /* set up audio path interconnects */
 754        snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
 755
 756        return 0;
 757}
 758
 759static int aic3x_hw_params(struct snd_pcm_substream *substream,
 760                           struct snd_pcm_hw_params *params,
 761                           struct snd_soc_dai *dai)
 762{
 763        struct snd_soc_pcm_runtime *rtd = substream->private_data;
 764        struct snd_soc_device *socdev = rtd->socdev;
 765        struct snd_soc_codec *codec = socdev->card->codec;
 766        struct aic3x_priv *aic3x = codec->private_data;
 767        int codec_clk = 0, bypass_pll = 0, fsref, last_clk = 0;
 768        u8 data, r, p, pll_q, pll_p = 1, pll_r = 1, pll_j = 1;
 769        u16 pll_d = 1;
 770        u8 reg;
 771
 772        /* select data word length */
 773        data =
 774            aic3x_read_reg_cache(codec, AIC3X_ASD_INTF_CTRLB) & (~(0x3 << 4));
 775        switch (params_format(params)) {
 776        case SNDRV_PCM_FORMAT_S16_LE:
 777                break;
 778        case SNDRV_PCM_FORMAT_S20_3LE:
 779                data |= (0x01 << 4);
 780                break;
 781        case SNDRV_PCM_FORMAT_S24_LE:
 782                data |= (0x02 << 4);
 783                break;
 784        case SNDRV_PCM_FORMAT_S32_LE:
 785                data |= (0x03 << 4);
 786                break;
 787        }
 788        aic3x_write(codec, AIC3X_ASD_INTF_CTRLB, data);
 789
 790        /* Fsref can be 44100 or 48000 */
 791        fsref = (params_rate(params) % 11025 == 0) ? 44100 : 48000;
 792
 793        /* Try to find a value for Q which allows us to bypass the PLL and
 794         * generate CODEC_CLK directly. */
 795        for (pll_q = 2; pll_q < 18; pll_q++)
 796                if (aic3x->sysclk / (128 * pll_q) == fsref) {
 797                        bypass_pll = 1;
 798                        break;
 799                }
 800
 801        if (bypass_pll) {
 802                pll_q &= 0xf;
 803                aic3x_write(codec, AIC3X_PLL_PROGA_REG, pll_q << PLLQ_SHIFT);
 804                aic3x_write(codec, AIC3X_GPIOB_REG, CODEC_CLKIN_CLKDIV);
 805                /* disable PLL if it is bypassed */
 806                reg = aic3x_read_reg_cache(codec, AIC3X_PLL_PROGA_REG);
 807                aic3x_write(codec, AIC3X_PLL_PROGA_REG, reg & ~PLL_ENABLE);
 808
 809        } else {
 810                aic3x_write(codec, AIC3X_GPIOB_REG, CODEC_CLKIN_PLLDIV);
 811                /* enable PLL when it is used */
 812                reg = aic3x_read_reg_cache(codec, AIC3X_PLL_PROGA_REG);
 813                aic3x_write(codec, AIC3X_PLL_PROGA_REG, reg | PLL_ENABLE);
 814        }
 815
 816        /* Route Left DAC to left channel input and
 817         * right DAC to right channel input */
 818        data = (LDAC2LCH | RDAC2RCH);
 819        data |= (fsref == 44100) ? FSREF_44100 : FSREF_48000;
 820        if (params_rate(params) >= 64000)
 821                data |= DUAL_RATE_MODE;
 822        aic3x_write(codec, AIC3X_CODEC_DATAPATH_REG, data);
 823
 824        /* codec sample rate select */
 825        data = (fsref * 20) / params_rate(params);
 826        if (params_rate(params) < 64000)
 827                data /= 2;
 828        data /= 5;
 829        data -= 2;
 830        data |= (data << 4);
 831        aic3x_write(codec, AIC3X_SAMPLE_RATE_SEL_REG, data);
 832
 833        if (bypass_pll)
 834                return 0;
 835
 836        /* Use PLL
 837         * find an apropriate setup for j, d, r and p by iterating over
 838         * p and r - j and d are calculated for each fraction.
 839         * Up to 128 values are probed, the closest one wins the game.
 840         * The sysclk is divided by 1000 to prevent integer overflows.
 841         */
 842        codec_clk = (2048 * fsref) / (aic3x->sysclk / 1000);
 843
 844        for (r = 1; r <= 16; r++)
 845                for (p = 1; p <= 8; p++) {
 846                        int clk, tmp = (codec_clk * pll_r * 10) / pll_p;
 847                        u8 j = tmp / 10000;
 848                        u16 d = tmp % 10000;
 849
 850                        if (j > 63)
 851                                continue;
 852
 853                        if (d != 0 && aic3x->sysclk < 10000000)
 854                                continue;
 855
 856                        /* This is actually 1000 * ((j + (d/10000)) * r) / p
 857                         * The term had to be converted to get rid of the
 858                         * division by 10000 */
 859                        clk = ((10000 * j * r) + (d * r)) / (10 * p);
 860
 861                        /* check whether this values get closer than the best
 862                         * ones we had before */
 863                        if (abs(codec_clk - clk) < abs(codec_clk - last_clk)) {
 864                                pll_j = j; pll_d = d; pll_r = r; pll_p = p;
 865                                last_clk = clk;
 866                        }
 867
 868                        /* Early exit for exact matches */
 869                        if (clk == codec_clk)
 870                                break;
 871                }
 872
 873        if (last_clk == 0) {
 874                printk(KERN_ERR "%s(): unable to setup PLL\n", __func__);
 875                return -EINVAL;
 876        }
 877
 878        data = aic3x_read_reg_cache(codec, AIC3X_PLL_PROGA_REG);
 879        aic3x_write(codec, AIC3X_PLL_PROGA_REG, data | (pll_p << PLLP_SHIFT));
 880        aic3x_write(codec, AIC3X_OVRF_STATUS_AND_PLLR_REG, pll_r << PLLR_SHIFT);
 881        aic3x_write(codec, AIC3X_PLL_PROGB_REG, pll_j << PLLJ_SHIFT);
 882        aic3x_write(codec, AIC3X_PLL_PROGC_REG, (pll_d >> 6) << PLLD_MSB_SHIFT);
 883        aic3x_write(codec, AIC3X_PLL_PROGD_REG,
 884                    (pll_d & 0x3F) << PLLD_LSB_SHIFT);
 885
 886        return 0;
 887}
 888
 889static int aic3x_mute(struct snd_soc_dai *dai, int mute)
 890{
 891        struct snd_soc_codec *codec = dai->codec;
 892        u8 ldac_reg = aic3x_read_reg_cache(codec, LDAC_VOL) & ~MUTE_ON;
 893        u8 rdac_reg = aic3x_read_reg_cache(codec, RDAC_VOL) & ~MUTE_ON;
 894
 895        if (mute) {
 896                aic3x_write(codec, LDAC_VOL, ldac_reg | MUTE_ON);
 897                aic3x_write(codec, RDAC_VOL, rdac_reg | MUTE_ON);
 898        } else {
 899                aic3x_write(codec, LDAC_VOL, ldac_reg);
 900                aic3x_write(codec, RDAC_VOL, rdac_reg);
 901        }
 902
 903        return 0;
 904}
 905
 906static int aic3x_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 907                                int clk_id, unsigned int freq, int dir)
 908{
 909        struct snd_soc_codec *codec = codec_dai->codec;
 910        struct aic3x_priv *aic3x = codec->private_data;
 911
 912        aic3x->sysclk = freq;
 913        return 0;
 914}
 915
 916static int aic3x_set_dai_fmt(struct snd_soc_dai *codec_dai,
 917                             unsigned int fmt)
 918{
 919        struct snd_soc_codec *codec = codec_dai->codec;
 920        struct aic3x_priv *aic3x = codec->private_data;
 921        u8 iface_areg, iface_breg;
 922        int delay = 0;
 923
 924        iface_areg = aic3x_read_reg_cache(codec, AIC3X_ASD_INTF_CTRLA) & 0x3f;
 925        iface_breg = aic3x_read_reg_cache(codec, AIC3X_ASD_INTF_CTRLB) & 0x3f;
 926
 927        /* set master/slave audio interface */
 928        switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 929        case SND_SOC_DAIFMT_CBM_CFM:
 930                aic3x->master = 1;
 931                iface_areg |= BIT_CLK_MASTER | WORD_CLK_MASTER;
 932                break;
 933        case SND_SOC_DAIFMT_CBS_CFS:
 934                aic3x->master = 0;
 935                break;
 936        default:
 937                return -EINVAL;
 938        }
 939
 940        /*
 941         * match both interface format and signal polarities since they
 942         * are fixed
 943         */
 944        switch (fmt & (SND_SOC_DAIFMT_FORMAT_MASK |
 945                       SND_SOC_DAIFMT_INV_MASK)) {
 946        case (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF):
 947                break;
 948        case (SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF):
 949                delay = 1;
 950        case (SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF):
 951                iface_breg |= (0x01 << 6);
 952                break;
 953        case (SND_SOC_DAIFMT_RIGHT_J | SND_SOC_DAIFMT_NB_NF):
 954                iface_breg |= (0x02 << 6);
 955                break;
 956        case (SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF):
 957                iface_breg |= (0x03 << 6);
 958                break;
 959        default:
 960                return -EINVAL;
 961        }
 962
 963        /* set iface */
 964        aic3x_write(codec, AIC3X_ASD_INTF_CTRLA, iface_areg);
 965        aic3x_write(codec, AIC3X_ASD_INTF_CTRLB, iface_breg);
 966        aic3x_write(codec, AIC3X_ASD_INTF_CTRLC, delay);
 967
 968        return 0;
 969}
 970
 971static int aic3x_set_bias_level(struct snd_soc_codec *codec,
 972                                enum snd_soc_bias_level level)
 973{
 974        struct aic3x_priv *aic3x = codec->private_data;
 975        u8 reg;
 976
 977        switch (level) {
 978        case SND_SOC_BIAS_ON:
 979                /* all power is driven by DAPM system */
 980                if (aic3x->master) {
 981                        /* enable pll */
 982                        reg = aic3x_read_reg_cache(codec, AIC3X_PLL_PROGA_REG);
 983                        aic3x_write(codec, AIC3X_PLL_PROGA_REG,
 984                                    reg | PLL_ENABLE);
 985                }
 986                break;
 987        case SND_SOC_BIAS_PREPARE:
 988                break;
 989        case SND_SOC_BIAS_STANDBY:
 990                /*
 991                 * all power is driven by DAPM system,
 992                 * so output power is safe if bypass was set
 993                 */
 994                if (aic3x->master) {
 995                        /* disable pll */
 996                        reg = aic3x_read_reg_cache(codec, AIC3X_PLL_PROGA_REG);
 997                        aic3x_write(codec, AIC3X_PLL_PROGA_REG,
 998                                    reg & ~PLL_ENABLE);
 999                }
1000                break;
1001        case SND_SOC_BIAS_OFF:
1002                /* force all power off */
1003                reg = aic3x_read_reg_cache(codec, LINE1L_2_LADC_CTRL);
1004                aic3x_write(codec, LINE1L_2_LADC_CTRL, reg & ~LADC_PWR_ON);
1005                reg = aic3x_read_reg_cache(codec, LINE1R_2_RADC_CTRL);
1006                aic3x_write(codec, LINE1R_2_RADC_CTRL, reg & ~RADC_PWR_ON);
1007
1008                reg = aic3x_read_reg_cache(codec, DAC_PWR);
1009                aic3x_write(codec, DAC_PWR, reg & ~(LDAC_PWR_ON | RDAC_PWR_ON));
1010
1011                reg = aic3x_read_reg_cache(codec, HPLOUT_CTRL);
1012                aic3x_write(codec, HPLOUT_CTRL, reg & ~HPLOUT_PWR_ON);
1013                reg = aic3x_read_reg_cache(codec, HPROUT_CTRL);
1014                aic3x_write(codec, HPROUT_CTRL, reg & ~HPROUT_PWR_ON);
1015
1016                reg = aic3x_read_reg_cache(codec, HPLCOM_CTRL);
1017                aic3x_write(codec, HPLCOM_CTRL, reg & ~HPLCOM_PWR_ON);
1018                reg = aic3x_read_reg_cache(codec, HPRCOM_CTRL);
1019                aic3x_write(codec, HPRCOM_CTRL, reg & ~HPRCOM_PWR_ON);
1020
1021                reg = aic3x_read_reg_cache(codec, MONOLOPM_CTRL);
1022                aic3x_write(codec, MONOLOPM_CTRL, reg & ~MONOLOPM_PWR_ON);
1023
1024                reg = aic3x_read_reg_cache(codec, LLOPM_CTRL);
1025                aic3x_write(codec, LLOPM_CTRL, reg & ~LLOPM_PWR_ON);
1026                reg = aic3x_read_reg_cache(codec, RLOPM_CTRL);
1027                aic3x_write(codec, RLOPM_CTRL, reg & ~RLOPM_PWR_ON);
1028
1029                if (aic3x->master) {
1030                        /* disable pll */
1031                        reg = aic3x_read_reg_cache(codec, AIC3X_PLL_PROGA_REG);
1032                        aic3x_write(codec, AIC3X_PLL_PROGA_REG,
1033                                    reg & ~PLL_ENABLE);
1034                }
1035                break;
1036        }
1037        codec->bias_level = level;
1038
1039        return 0;
1040}
1041
1042void aic3x_set_gpio(struct snd_soc_codec *codec, int gpio, int state)
1043{
1044        u8 reg = gpio ? AIC3X_GPIO2_REG : AIC3X_GPIO1_REG;
1045        u8 bit = gpio ? 3: 0;
1046        u8 val = aic3x_read_reg_cache(codec, reg) & ~(1 << bit);
1047        aic3x_write(codec, reg, val | (!!state << bit));
1048}
1049EXPORT_SYMBOL_GPL(aic3x_set_gpio);
1050
1051int aic3x_get_gpio(struct snd_soc_codec *codec, int gpio)
1052{
1053        u8 reg = gpio ? AIC3X_GPIO2_REG : AIC3X_GPIO1_REG;
1054        u8 val, bit = gpio ? 2: 1;
1055
1056        aic3x_read(codec, reg, &val);
1057        return (val >> bit) & 1;
1058}
1059EXPORT_SYMBOL_GPL(aic3x_get_gpio);
1060
1061void aic3x_set_headset_detection(struct snd_soc_codec *codec, int detect,
1062                                 int headset_debounce, int button_debounce)
1063{
1064        u8 val;
1065
1066        val = ((detect & AIC3X_HEADSET_DETECT_MASK)
1067                << AIC3X_HEADSET_DETECT_SHIFT) |
1068              ((headset_debounce & AIC3X_HEADSET_DEBOUNCE_MASK)
1069                << AIC3X_HEADSET_DEBOUNCE_SHIFT) |
1070              ((button_debounce & AIC3X_BUTTON_DEBOUNCE_MASK)
1071                << AIC3X_BUTTON_DEBOUNCE_SHIFT);
1072
1073        if (detect & AIC3X_HEADSET_DETECT_MASK)
1074                val |= AIC3X_HEADSET_DETECT_ENABLED;
1075
1076        aic3x_write(codec, AIC3X_HEADSET_DETECT_CTRL_A, val);
1077}
1078EXPORT_SYMBOL_GPL(aic3x_set_headset_detection);
1079
1080int aic3x_headset_detected(struct snd_soc_codec *codec)
1081{
1082        u8 val;
1083        aic3x_read(codec, AIC3X_HEADSET_DETECT_CTRL_B, &val);
1084        return (val >> 4) & 1;
1085}
1086EXPORT_SYMBOL_GPL(aic3x_headset_detected);
1087
1088int aic3x_button_pressed(struct snd_soc_codec *codec)
1089{
1090        u8 val;
1091        aic3x_read(codec, AIC3X_HEADSET_DETECT_CTRL_B, &val);
1092        return (val >> 5) & 1;
1093}
1094EXPORT_SYMBOL_GPL(aic3x_button_pressed);
1095
1096#define AIC3X_RATES     SNDRV_PCM_RATE_8000_96000
1097#define AIC3X_FORMATS   (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
1098                         SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)
1099
1100static struct snd_soc_dai_ops aic3x_dai_ops = {
1101        .hw_params      = aic3x_hw_params,
1102        .digital_mute   = aic3x_mute,
1103        .set_sysclk     = aic3x_set_dai_sysclk,
1104        .set_fmt        = aic3x_set_dai_fmt,
1105};
1106
1107struct snd_soc_dai aic3x_dai = {
1108        .name = "tlv320aic3x",
1109        .playback = {
1110                .stream_name = "Playback",
1111                .channels_min = 1,
1112                .channels_max = 2,
1113                .rates = AIC3X_RATES,
1114                .formats = AIC3X_FORMATS,},
1115        .capture = {
1116                .stream_name = "Capture",
1117                .channels_min = 1,
1118                .channels_max = 2,
1119                .rates = AIC3X_RATES,
1120                .formats = AIC3X_FORMATS,},
1121        .ops = &aic3x_dai_ops,
1122};
1123EXPORT_SYMBOL_GPL(aic3x_dai);
1124
1125static int aic3x_suspend(struct platform_device *pdev, pm_message_t state)
1126{
1127        struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1128        struct snd_soc_codec *codec = socdev->card->codec;
1129
1130        aic3x_set_bias_level(codec, SND_SOC_BIAS_OFF);
1131
1132        return 0;
1133}
1134
1135static int aic3x_resume(struct platform_device *pdev)
1136{
1137        struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1138        struct snd_soc_codec *codec = socdev->card->codec;
1139        int i;
1140        u8 data[2];
1141        u8 *cache = codec->reg_cache;
1142
1143        /* Sync reg_cache with the hardware */
1144        for (i = 0; i < ARRAY_SIZE(aic3x_reg); i++) {
1145                data[0] = i;
1146                data[1] = cache[i];
1147                codec->hw_write(codec->control_data, data, 2);
1148        }
1149
1150        aic3x_set_bias_level(codec, codec->suspend_bias_level);
1151
1152        return 0;
1153}
1154
1155/*
1156 * initialise the AIC3X driver
1157 * register the mixer and dsp interfaces with the kernel
1158 */
1159static int aic3x_init(struct snd_soc_codec *codec)
1160{
1161        int reg;
1162
1163        mutex_init(&codec->mutex);
1164        INIT_LIST_HEAD(&codec->dapm_widgets);
1165        INIT_LIST_HEAD(&codec->dapm_paths);
1166
1167        codec->name = "tlv320aic3x";
1168        codec->owner = THIS_MODULE;
1169        codec->read = aic3x_read_reg_cache;
1170        codec->write = aic3x_write;
1171        codec->set_bias_level = aic3x_set_bias_level;
1172        codec->dai = &aic3x_dai;
1173        codec->num_dai = 1;
1174        codec->reg_cache_size = ARRAY_SIZE(aic3x_reg);
1175        codec->reg_cache = kmemdup(aic3x_reg, sizeof(aic3x_reg), GFP_KERNEL);
1176        if (codec->reg_cache == NULL)
1177                return -ENOMEM;
1178
1179        aic3x_write(codec, AIC3X_PAGE_SELECT, PAGE0_SELECT);
1180        aic3x_write(codec, AIC3X_RESET, SOFT_RESET);
1181
1182        /* DAC default volume and mute */
1183        aic3x_write(codec, LDAC_VOL, DEFAULT_VOL | MUTE_ON);
1184        aic3x_write(codec, RDAC_VOL, DEFAULT_VOL | MUTE_ON);
1185
1186        /* DAC to HP default volume and route to Output mixer */
1187        aic3x_write(codec, DACL1_2_HPLOUT_VOL, DEFAULT_VOL | ROUTE_ON);
1188        aic3x_write(codec, DACR1_2_HPROUT_VOL, DEFAULT_VOL | ROUTE_ON);
1189        aic3x_write(codec, DACL1_2_HPLCOM_VOL, DEFAULT_VOL | ROUTE_ON);
1190        aic3x_write(codec, DACR1_2_HPRCOM_VOL, DEFAULT_VOL | ROUTE_ON);
1191        /* DAC to Line Out default volume and route to Output mixer */
1192        aic3x_write(codec, DACL1_2_LLOPM_VOL, DEFAULT_VOL | ROUTE_ON);
1193        aic3x_write(codec, DACR1_2_RLOPM_VOL, DEFAULT_VOL | ROUTE_ON);
1194        /* DAC to Mono Line Out default volume and route to Output mixer */
1195        aic3x_write(codec, DACL1_2_MONOLOPM_VOL, DEFAULT_VOL | ROUTE_ON);
1196        aic3x_write(codec, DACR1_2_MONOLOPM_VOL, DEFAULT_VOL | ROUTE_ON);
1197
1198        /* unmute all outputs */
1199        reg = aic3x_read_reg_cache(codec, LLOPM_CTRL);
1200        aic3x_write(codec, LLOPM_CTRL, reg | UNMUTE);
1201        reg = aic3x_read_reg_cache(codec, RLOPM_CTRL);
1202        aic3x_write(codec, RLOPM_CTRL, reg | UNMUTE);
1203        reg = aic3x_read_reg_cache(codec, MONOLOPM_CTRL);
1204        aic3x_write(codec, MONOLOPM_CTRL, reg | UNMUTE);
1205        reg = aic3x_read_reg_cache(codec, HPLOUT_CTRL);
1206        aic3x_write(codec, HPLOUT_CTRL, reg | UNMUTE);
1207        reg = aic3x_read_reg_cache(codec, HPROUT_CTRL);
1208        aic3x_write(codec, HPROUT_CTRL, reg | UNMUTE);
1209        reg = aic3x_read_reg_cache(codec, HPLCOM_CTRL);
1210        aic3x_write(codec, HPLCOM_CTRL, reg | UNMUTE);
1211        reg = aic3x_read_reg_cache(codec, HPRCOM_CTRL);
1212        aic3x_write(codec, HPRCOM_CTRL, reg | UNMUTE);
1213
1214        /* ADC default volume and unmute */
1215        aic3x_write(codec, LADC_VOL, DEFAULT_GAIN);
1216        aic3x_write(codec, RADC_VOL, DEFAULT_GAIN);
1217        /* By default route Line1 to ADC PGA mixer */
1218        aic3x_write(codec, LINE1L_2_LADC_CTRL, 0x0);
1219        aic3x_write(codec, LINE1R_2_RADC_CTRL, 0x0);
1220
1221        /* PGA to HP Bypass default volume, disconnect from Output Mixer */
1222        aic3x_write(codec, PGAL_2_HPLOUT_VOL, DEFAULT_VOL);
1223        aic3x_write(codec, PGAR_2_HPROUT_VOL, DEFAULT_VOL);
1224        aic3x_write(codec, PGAL_2_HPLCOM_VOL, DEFAULT_VOL);
1225        aic3x_write(codec, PGAR_2_HPRCOM_VOL, DEFAULT_VOL);
1226        /* PGA to Line Out default volume, disconnect from Output Mixer */
1227        aic3x_write(codec, PGAL_2_LLOPM_VOL, DEFAULT_VOL);
1228        aic3x_write(codec, PGAR_2_RLOPM_VOL, DEFAULT_VOL);
1229        /* PGA to Mono Line Out default volume, disconnect from Output Mixer */
1230        aic3x_write(codec, PGAL_2_MONOLOPM_VOL, DEFAULT_VOL);
1231        aic3x_write(codec, PGAR_2_MONOLOPM_VOL, DEFAULT_VOL);
1232
1233        /* Line2 to HP Bypass default volume, disconnect from Output Mixer */
1234        aic3x_write(codec, LINE2L_2_HPLOUT_VOL, DEFAULT_VOL);
1235        aic3x_write(codec, LINE2R_2_HPROUT_VOL, DEFAULT_VOL);
1236        aic3x_write(codec, LINE2L_2_HPLCOM_VOL, DEFAULT_VOL);
1237        aic3x_write(codec, LINE2R_2_HPRCOM_VOL, DEFAULT_VOL);
1238        /* Line2 Line Out default volume, disconnect from Output Mixer */
1239        aic3x_write(codec, LINE2L_2_LLOPM_VOL, DEFAULT_VOL);
1240        aic3x_write(codec, LINE2R_2_RLOPM_VOL, DEFAULT_VOL);
1241        /* Line2 to Mono Out default volume, disconnect from Output Mixer */
1242        aic3x_write(codec, LINE2L_2_MONOLOPM_VOL, DEFAULT_VOL);
1243        aic3x_write(codec, LINE2R_2_MONOLOPM_VOL, DEFAULT_VOL);
1244
1245        /* off, with power on */
1246        aic3x_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1247
1248        return 0;
1249}
1250
1251static struct snd_soc_codec *aic3x_codec;
1252
1253static int aic3x_register(struct snd_soc_codec *codec)
1254{
1255        int ret;
1256
1257        ret = aic3x_init(codec);
1258        if (ret < 0) {
1259                dev_err(codec->dev, "Failed to initialise device\n");
1260                return ret;
1261        }
1262
1263        aic3x_codec = codec;
1264
1265        ret = snd_soc_register_codec(codec);
1266        if (ret) {
1267                dev_err(codec->dev, "Failed to register codec\n");
1268                return ret;
1269        }
1270
1271        ret = snd_soc_register_dai(&aic3x_dai);
1272        if (ret) {
1273                dev_err(codec->dev, "Failed to register dai\n");
1274                snd_soc_unregister_codec(codec);
1275                return ret;
1276        }
1277
1278        return 0;
1279}
1280
1281static int aic3x_unregister(struct aic3x_priv *aic3x)
1282{
1283        aic3x_set_bias_level(&aic3x->codec, SND_SOC_BIAS_OFF);
1284
1285        snd_soc_unregister_dai(&aic3x_dai);
1286        snd_soc_unregister_codec(&aic3x->codec);
1287
1288        kfree(aic3x);
1289        aic3x_codec = NULL;
1290
1291        return 0;
1292}
1293
1294#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1295/*
1296 * AIC3X 2 wire address can be up to 4 devices with device addresses
1297 * 0x18, 0x19, 0x1A, 0x1B
1298 */
1299
1300/*
1301 * If the i2c layer weren't so broken, we could pass this kind of data
1302 * around
1303 */
1304static int aic3x_i2c_probe(struct i2c_client *i2c,
1305                           const struct i2c_device_id *id)
1306{
1307        struct snd_soc_codec *codec;
1308        struct aic3x_priv *aic3x;
1309
1310        aic3x = kzalloc(sizeof(struct aic3x_priv), GFP_KERNEL);
1311        if (aic3x == NULL) {
1312                dev_err(&i2c->dev, "failed to create private data\n");
1313                return -ENOMEM;
1314        }
1315
1316        codec = &aic3x->codec;
1317        codec->dev = &i2c->dev;
1318        codec->private_data = aic3x;
1319        codec->control_data = i2c;
1320        codec->hw_write = (hw_write_t) i2c_master_send;
1321
1322        i2c_set_clientdata(i2c, aic3x);
1323
1324        return aic3x_register(codec);
1325}
1326
1327static int aic3x_i2c_remove(struct i2c_client *client)
1328{
1329        struct aic3x_priv *aic3x = i2c_get_clientdata(client);
1330
1331        return aic3x_unregister(aic3x);
1332}
1333
1334static const struct i2c_device_id aic3x_i2c_id[] = {
1335        { "tlv320aic3x", 0 },
1336        { "tlv320aic33", 0 },
1337        { }
1338};
1339MODULE_DEVICE_TABLE(i2c, aic3x_i2c_id);
1340
1341/* machine i2c codec control layer */
1342static struct i2c_driver aic3x_i2c_driver = {
1343        .driver = {
1344                .name = "aic3x I2C Codec",
1345                .owner = THIS_MODULE,
1346        },
1347        .probe  = aic3x_i2c_probe,
1348        .remove = aic3x_i2c_remove,
1349        .id_table = aic3x_i2c_id,
1350};
1351
1352static inline void aic3x_i2c_init(void)
1353{
1354        int ret;
1355
1356        ret = i2c_add_driver(&aic3x_i2c_driver);
1357        if (ret)
1358                printk(KERN_ERR "%s: error regsitering i2c driver, %d\n",
1359                       __func__, ret);
1360}
1361
1362static inline void aic3x_i2c_exit(void)
1363{
1364        i2c_del_driver(&aic3x_i2c_driver);
1365}
1366#else
1367static inline void aic3x_i2c_init(void) { }
1368static inline void aic3x_i2c_exit(void) { }
1369#endif
1370
1371static int aic3x_probe(struct platform_device *pdev)
1372{
1373        struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1374        struct aic3x_setup_data *setup;
1375        struct snd_soc_codec *codec;
1376        int ret = 0;
1377
1378        codec = aic3x_codec;
1379        if (!codec) {
1380                dev_err(&pdev->dev, "Codec not registered\n");
1381                return -ENODEV;
1382        }
1383
1384        socdev->card->codec = codec;
1385        setup = socdev->codec_data;
1386
1387        if (setup) {
1388                /* setup GPIO functions */
1389                aic3x_write(codec, AIC3X_GPIO1_REG,
1390                            (setup->gpio_func[0] & 0xf) << 4);
1391                aic3x_write(codec, AIC3X_GPIO2_REG,
1392                            (setup->gpio_func[1] & 0xf) << 4);
1393        }
1394
1395        /* register pcms */
1396        ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
1397        if (ret < 0) {
1398                printk(KERN_ERR "aic3x: failed to create pcms\n");
1399                goto pcm_err;
1400        }
1401
1402        snd_soc_add_controls(codec, aic3x_snd_controls,
1403                             ARRAY_SIZE(aic3x_snd_controls));
1404
1405        aic3x_add_widgets(codec);
1406
1407        return ret;
1408
1409pcm_err:
1410        kfree(codec->reg_cache);
1411        return ret;
1412}
1413
1414static int aic3x_remove(struct platform_device *pdev)
1415{
1416        struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1417        struct snd_soc_codec *codec = socdev->card->codec;
1418
1419        /* power down chip */
1420        if (codec->control_data)
1421                aic3x_set_bias_level(codec, SND_SOC_BIAS_OFF);
1422
1423        snd_soc_free_pcms(socdev);
1424        snd_soc_dapm_free(socdev);
1425
1426        kfree(codec->reg_cache);
1427
1428        return 0;
1429}
1430
1431struct snd_soc_codec_device soc_codec_dev_aic3x = {
1432        .probe = aic3x_probe,
1433        .remove = aic3x_remove,
1434        .suspend = aic3x_suspend,
1435        .resume = aic3x_resume,
1436};
1437EXPORT_SYMBOL_GPL(soc_codec_dev_aic3x);
1438
1439static int __init aic3x_modinit(void)
1440{
1441        aic3x_i2c_init();
1442
1443        return 0;
1444}
1445module_init(aic3x_modinit);
1446
1447static void __exit aic3x_exit(void)
1448{
1449        aic3x_i2c_exit();
1450}
1451module_exit(aic3x_exit);
1452
1453MODULE_DESCRIPTION("ASoC TLV320AIC3X codec driver");
1454MODULE_AUTHOR("Vladimir Barinov");
1455MODULE_LICENSE("GPL");
1456
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