sound/soc/codecs/ak4671.c

   1 /*
   2  * ak4671.c  --  audio driver for AK4671
   3  *
   4  * Copyright (C) 2009 Samsung Electronics Co.Ltd
   5  * Author: Joonyoung Shim <jy0922.shim@samsung.com>
   6  *
   7  *  This program is free software; you can redistribute  it and/or modify it
   8  *  under  the terms of  the GNU General  Public License as published by the
   9  *  Free Software Foundation;  either version 2 of the  License, or (at your
  10  *  option) any later version.
  11  *
  12  */
  13
  14 #include <linux/module.h>
  15 #include <linux/init.h>
  16 #include <linux/i2c.h>
  17 #include <linux/delay.h>
  18 #include <linux/slab.h>
  19 #include <sound/soc.h>
  20 #include <sound/soc-dapm.h>
  21 #include <sound/initval.h>
  22 #include <sound/tlv.h>
  23
  24 #include "ak4671.h"
  25
  26 static struct snd_soc_codec *ak4671_codec;
  27
  28 /* codec private data */
  29 struct ak4671_priv {
  30         struct snd_soc_codec codec;
  31         u8 reg_cache[AK4671_CACHEREGNUM];
  32 };
  33
  34 /* ak4671 register cache & default register settings */
  35 static const u8 ak4671_reg[AK4671_CACHEREGNUM] = {
  36         0x00,   /* AK4671_AD_DA_POWER_MANAGEMENT        (0x00)  */
  37         0xf6,   /* AK4671_PLL_MODE_SELECT0              (0x01)  */
  38         0x00,   /* AK4671_PLL_MODE_SELECT1              (0x02)  */
  39         0x02,   /* AK4671_FORMAT_SELECT                 (0x03)  */
  40         0x00,   /* AK4671_MIC_SIGNAL_SELECT             (0x04)  */
  41         0x55,   /* AK4671_MIC_AMP_GAIN                  (0x05)  */
  42         0x00,   /* AK4671_MIXING_POWER_MANAGEMENT0      (0x06)  */
  43         0x00,   /* AK4671_MIXING_POWER_MANAGEMENT1      (0x07)  */
  44         0xb5,   /* AK4671_OUTPUT_VOLUME_CONTROL         (0x08)  */
  45         0x00,   /* AK4671_LOUT1_SIGNAL_SELECT           (0x09)  */
  46         0x00,   /* AK4671_ROUT1_SIGNAL_SELECT           (0x0a)  */
  47         0x00,   /* AK4671_LOUT2_SIGNAL_SELECT           (0x0b)  */
  48         0x00,   /* AK4671_ROUT2_SIGNAL_SELECT           (0x0c)  */
  49         0x00,   /* AK4671_LOUT3_SIGNAL_SELECT           (0x0d)  */
  50         0x00,   /* AK4671_ROUT3_SIGNAL_SELECT           (0x0e)  */
  51         0x00,   /* AK4671_LOUT1_POWER_MANAGERMENT       (0x0f)  */
  52         0x00,   /* AK4671_LOUT2_POWER_MANAGERMENT       (0x10)  */
  53         0x80,   /* AK4671_LOUT3_POWER_MANAGERMENT       (0x11)  */
  54         0x91,   /* AK4671_LCH_INPUT_VOLUME_CONTROL      (0x12)  */
  55         0x91,   /* AK4671_RCH_INPUT_VOLUME_CONTROL      (0x13)  */
  56         0xe1,   /* AK4671_ALC_REFERENCE_SELECT          (0x14)  */
  57         0x00,   /* AK4671_DIGITAL_MIXING_CONTROL        (0x15)  */
  58         0x00,   /* AK4671_ALC_TIMER_SELECT              (0x16)  */
  59         0x00,   /* AK4671_ALC_MODE_CONTROL              (0x17)  */
  60         0x02,   /* AK4671_MODE_CONTROL1                 (0x18)  */
  61         0x01,   /* AK4671_MODE_CONTROL2                 (0x19)  */
  62         0x18,   /* AK4671_LCH_OUTPUT_VOLUME_CONTROL     (0x1a)  */
  63         0x18,   /* AK4671_RCH_OUTPUT_VOLUME_CONTROL     (0x1b)  */
  64         0x00,   /* AK4671_SIDETONE_A_CONTROL            (0x1c)  */
  65         0x02,   /* AK4671_DIGITAL_FILTER_SELECT         (0x1d)  */
  66         0x00,   /* AK4671_FIL3_COEFFICIENT0             (0x1e)  */
  67         0x00,   /* AK4671_FIL3_COEFFICIENT1             (0x1f)  */
  68         0x00,   /* AK4671_FIL3_COEFFICIENT2             (0x20)  */
  69         0x00,   /* AK4671_FIL3_COEFFICIENT3             (0x21)  */
  70         0x00,   /* AK4671_EQ_COEFFICIENT0               (0x22)  */
  71         0x00,   /* AK4671_EQ_COEFFICIENT1               (0x23)  */
  72         0x00,   /* AK4671_EQ_COEFFICIENT2               (0x24)  */
  73         0x00,   /* AK4671_EQ_COEFFICIENT3               (0x25)  */
  74         0x00,   /* AK4671_EQ_COEFFICIENT4               (0x26)  */
  75         0x00,   /* AK4671_EQ_COEFFICIENT5               (0x27)  */
  76         0xa9,   /* AK4671_FIL1_COEFFICIENT0             (0x28)  */
  77         0x1f,   /* AK4671_FIL1_COEFFICIENT1             (0x29)  */
  78         0xad,   /* AK4671_FIL1_COEFFICIENT2             (0x2a)  */
  79         0x20,   /* AK4671_FIL1_COEFFICIENT3             (0x2b)  */
  80         0x00,   /* AK4671_FIL2_COEFFICIENT0             (0x2c)  */
  81         0x00,   /* AK4671_FIL2_COEFFICIENT1             (0x2d)  */
  82         0x00,   /* AK4671_FIL2_COEFFICIENT2             (0x2e)  */
  83         0x00,   /* AK4671_FIL2_COEFFICIENT3             (0x2f)  */
  84         0x00,   /* AK4671_DIGITAL_FILTER_SELECT2        (0x30)  */
  85         0x00,   /* this register not used                       */
  86         0x00,   /* AK4671_E1_COEFFICIENT0               (0x32)  */
  87         0x00,   /* AK4671_E1_COEFFICIENT1               (0x33)  */
  88         0x00,   /* AK4671_E1_COEFFICIENT2               (0x34)  */
  89         0x00,   /* AK4671_E1_COEFFICIENT3               (0x35)  */
  90         0x00,   /* AK4671_E1_COEFFICIENT4               (0x36)  */
  91         0x00,   /* AK4671_E1_COEFFICIENT5               (0x37)  */
  92         0x00,   /* AK4671_E2_COEFFICIENT0               (0x38)  */
  93         0x00,   /* AK4671_E2_COEFFICIENT1               (0x39)  */
  94         0x00,   /* AK4671_E2_COEFFICIENT2               (0x3a)  */
  95         0x00,   /* AK4671_E2_COEFFICIENT3               (0x3b)  */
  96         0x00,   /* AK4671_E2_COEFFICIENT4               (0x3c)  */
  97         0x00,   /* AK4671_E2_COEFFICIENT5               (0x3d)  */
  98         0x00,   /* AK4671_E3_COEFFICIENT0               (0x3e)  */
  99         0x00,   /* AK4671_E3_COEFFICIENT1               (0x3f)  */
 100         0x00,   /* AK4671_E3_COEFFICIENT2               (0x40)  */
 101         0x00,   /* AK4671_E3_COEFFICIENT3               (0x41)  */
 102         0x00,   /* AK4671_E3_COEFFICIENT4               (0x42)  */
 103         0x00,   /* AK4671_E3_COEFFICIENT5               (0x43)  */
 104         0x00,   /* AK4671_E4_COEFFICIENT0               (0x44)  */
 105         0x00,   /* AK4671_E4_COEFFICIENT1               (0x45)  */
 106         0x00,   /* AK4671_E4_COEFFICIENT2               (0x46)  */
 107         0x00,   /* AK4671_E4_COEFFICIENT3               (0x47)  */
 108         0x00,   /* AK4671_E4_COEFFICIENT4               (0x48)  */
 109         0x00,   /* AK4671_E4_COEFFICIENT5               (0x49)  */
 110         0x00,   /* AK4671_E5_COEFFICIENT0               (0x4a)  */
 111         0x00,   /* AK4671_E5_COEFFICIENT1               (0x4b)  */
 112         0x00,   /* AK4671_E5_COEFFICIENT2               (0x4c)  */
 113         0x00,   /* AK4671_E5_COEFFICIENT3               (0x4d)  */
 114         0x00,   /* AK4671_E5_COEFFICIENT4               (0x4e)  */
 115         0x00,   /* AK4671_E5_COEFFICIENT5               (0x4f)  */
 116         0x88,   /* AK4671_EQ_CONTROL_250HZ_100HZ        (0x50)  */
 117         0x88,   /* AK4671_EQ_CONTROL_3500HZ_1KHZ        (0x51)  */
 118         0x08,   /* AK4671_EQ_CONTRO_10KHZ               (0x52)  */
 119         0x00,   /* AK4671_PCM_IF_CONTROL0               (0x53)  */
 120         0x00,   /* AK4671_PCM_IF_CONTROL1               (0x54)  */
 121         0x00,   /* AK4671_PCM_IF_CONTROL2               (0x55)  */
 122         0x18,   /* AK4671_DIGITAL_VOLUME_B_CONTROL      (0x56)  */
 123         0x18,   /* AK4671_DIGITAL_VOLUME_C_CONTROL      (0x57)  */
 124         0x00,   /* AK4671_SIDETONE_VOLUME_CONTROL       (0x58)  */
 125         0x00,   /* AK4671_DIGITAL_MIXING_CONTROL2       (0x59)  */
 126         0x00,   /* AK4671_SAR_ADC_CONTROL               (0x5a)  */
 127 };
 128
 129 /*
 130  * LOUT1/ROUT1 output volume control:
 131  * from -24 to 6 dB in 6 dB steps (mute instead of -30 dB)
 132  */
 133 static DECLARE_TLV_DB_SCALE(out1_tlv, -3000, 600, 1);
 134
 135 /*
 136  * LOUT2/ROUT2 output volume control:
 137  * from -33 to 6 dB in 3 dB steps (mute instead of -33 dB)
 138  */
 139 static DECLARE_TLV_DB_SCALE(out2_tlv, -3300, 300, 1);
 140
 141 /*
 142  * LOUT3/ROUT3 output volume control:
 143  * from -6 to 3 dB in 3 dB steps
 144  */
 145 static DECLARE_TLV_DB_SCALE(out3_tlv, -600, 300, 0);
 146
 147 /*
 148  * Mic amp gain control:
 149  * from -15 to 30 dB in 3 dB steps
 150  * REVISIT: The actual min value(0x01) is -12 dB and the reg value 0x00 is not
 151  * available
 152  */
 153 static DECLARE_TLV_DB_SCALE(mic_amp_tlv, -1500, 300, 0);
 154
 155 static const struct snd_kcontrol_new ak4671_snd_controls[] = {
 156         /* Common playback gain controls */
 157         SOC_SINGLE_TLV("Line Output1 Playback Volume",
 158                         AK4671_OUTPUT_VOLUME_CONTROL, 0, 0x6, 0, out1_tlv),
 159         SOC_SINGLE_TLV("Headphone Output2 Playback Volume",
 160                         AK4671_OUTPUT_VOLUME_CONTROL, 4, 0xd, 0, out2_tlv),
 161         SOC_SINGLE_TLV("Line Output3 Playback Volume",
 162                         AK4671_LOUT3_POWER_MANAGERMENT, 6, 0x3, 0, out3_tlv),
 163
 164         /* Common capture gain controls */
 165         SOC_DOUBLE_TLV("Mic Amp Capture Volume",
 166                         AK4671_MIC_AMP_GAIN, 0, 4, 0xf, 0, mic_amp_tlv),
 167 };
 168
 169 /* event handlers */
 170 static int ak4671_out2_event(struct snd_soc_dapm_widget *w,
 171                 struct snd_kcontrol *kcontrol, int event)
 172 {
 173         struct snd_soc_codec *codec = w->codec;
 174         u8 reg;
 175
 176         switch (event) {
 177         case SND_SOC_DAPM_POST_PMU:
 178                 reg = snd_soc_read(codec, AK4671_LOUT2_POWER_MANAGERMENT);
 179                 reg |= AK4671_MUTEN;
 180                 snd_soc_write(codec, AK4671_LOUT2_POWER_MANAGERMENT, reg);
 181                 break;
 182         case SND_SOC_DAPM_PRE_PMD:
 183                 reg = snd_soc_read(codec, AK4671_LOUT2_POWER_MANAGERMENT);
 184                 reg &= ~AK4671_MUTEN;
 185                 snd_soc_write(codec, AK4671_LOUT2_POWER_MANAGERMENT, reg);
 186                 break;
 187         }
 188
 189         return 0;
 190 }
 191
 192 /* Output Mixers */
 193 static const struct snd_kcontrol_new ak4671_lout1_mixer_controls[] = {
 194         SOC_DAPM_SINGLE("DACL", AK4671_LOUT1_SIGNAL_SELECT, 0, 1, 0),
 195         SOC_DAPM_SINGLE("LINL1", AK4671_LOUT1_SIGNAL_SELECT, 1, 1, 0),
 196         SOC_DAPM_SINGLE("LINL2", AK4671_LOUT1_SIGNAL_SELECT, 2, 1, 0),
 197         SOC_DAPM_SINGLE("LINL3", AK4671_LOUT1_SIGNAL_SELECT, 3, 1, 0),
 198         SOC_DAPM_SINGLE("LINL4", AK4671_LOUT1_SIGNAL_SELECT, 4, 1, 0),
 199         SOC_DAPM_SINGLE("LOOPL", AK4671_LOUT1_SIGNAL_SELECT, 5, 1, 0),
 200 };
 201
 202 static const struct snd_kcontrol_new ak4671_rout1_mixer_controls[] = {
 203         SOC_DAPM_SINGLE("DACR", AK4671_ROUT1_SIGNAL_SELECT, 0, 1, 0),
 204         SOC_DAPM_SINGLE("RINR1", AK4671_ROUT1_SIGNAL_SELECT, 1, 1, 0),
 205         SOC_DAPM_SINGLE("RINR2", AK4671_ROUT1_SIGNAL_SELECT, 2, 1, 0),
 206         SOC_DAPM_SINGLE("RINR3", AK4671_ROUT1_SIGNAL_SELECT, 3, 1, 0),
 207         SOC_DAPM_SINGLE("RINR4", AK4671_ROUT1_SIGNAL_SELECT, 4, 1, 0),
 208         SOC_DAPM_SINGLE("LOOPR", AK4671_ROUT1_SIGNAL_SELECT, 5, 1, 0),
 209 };
 210
 211 static const struct snd_kcontrol_new ak4671_lout2_mixer_controls[] = {
 212         SOC_DAPM_SINGLE("DACHL", AK4671_LOUT2_SIGNAL_SELECT, 0, 1, 0),
 213         SOC_DAPM_SINGLE("LINH1", AK4671_LOUT2_SIGNAL_SELECT, 1, 1, 0),
 214         SOC_DAPM_SINGLE("LINH2", AK4671_LOUT2_SIGNAL_SELECT, 2, 1, 0),
 215         SOC_DAPM_SINGLE("LINH3", AK4671_LOUT2_SIGNAL_SELECT, 3, 1, 0),
 216         SOC_DAPM_SINGLE("LINH4", AK4671_LOUT2_SIGNAL_SELECT, 4, 1, 0),
 217         SOC_DAPM_SINGLE("LOOPHL", AK4671_LOUT2_SIGNAL_SELECT, 5, 1, 0),
 218 };
 219
 220 static const struct snd_kcontrol_new ak4671_rout2_mixer_controls[] = {
 221         SOC_DAPM_SINGLE("DACHR", AK4671_ROUT2_SIGNAL_SELECT, 0, 1, 0),
 222         SOC_DAPM_SINGLE("RINH1", AK4671_ROUT2_SIGNAL_SELECT, 1, 1, 0),
 223         SOC_DAPM_SINGLE("RINH2", AK4671_ROUT2_SIGNAL_SELECT, 2, 1, 0),
 224         SOC_DAPM_SINGLE("RINH3", AK4671_ROUT2_SIGNAL_SELECT, 3, 1, 0),
 225         SOC_DAPM_SINGLE("RINH4", AK4671_ROUT2_SIGNAL_SELECT, 4, 1, 0),
 226         SOC_DAPM_SINGLE("LOOPHR", AK4671_ROUT2_SIGNAL_SELECT, 5, 1, 0),
 227 };
 228
 229 static const struct snd_kcontrol_new ak4671_lout3_mixer_controls[] = {
 230         SOC_DAPM_SINGLE("DACSL", AK4671_LOUT3_SIGNAL_SELECT, 0, 1, 0),
 231         SOC_DAPM_SINGLE("LINS1", AK4671_LOUT3_SIGNAL_SELECT, 1, 1, 0),
 232         SOC_DAPM_SINGLE("LINS2", AK4671_LOUT3_SIGNAL_SELECT, 2, 1, 0),
 233         SOC_DAPM_SINGLE("LINS3", AK4671_LOUT3_SIGNAL_SELECT, 3, 1, 0),
 234         SOC_DAPM_SINGLE("LINS4", AK4671_LOUT3_SIGNAL_SELECT, 4, 1, 0),
 235         SOC_DAPM_SINGLE("LOOPSL", AK4671_LOUT3_SIGNAL_SELECT, 5, 1, 0),
 236 };
 237
 238 static const struct snd_kcontrol_new ak4671_rout3_mixer_controls[] = {
 239         SOC_DAPM_SINGLE("DACSR", AK4671_ROUT3_SIGNAL_SELECT, 0, 1, 0),
 240         SOC_DAPM_SINGLE("RINS1", AK4671_ROUT3_SIGNAL_SELECT, 1, 1, 0),
 241         SOC_DAPM_SINGLE("RINS2", AK4671_ROUT3_SIGNAL_SELECT, 2, 1, 0),
 242         SOC_DAPM_SINGLE("RINS3", AK4671_ROUT3_SIGNAL_SELECT, 3, 1, 0),
 243         SOC_DAPM_SINGLE("RINS4", AK4671_ROUT3_SIGNAL_SELECT, 4, 1, 0),
 244         SOC_DAPM_SINGLE("LOOPSR", AK4671_ROUT3_SIGNAL_SELECT, 5, 1, 0),
 245 };
 246
 247 /* Input MUXs */
 248 static const char *ak4671_lin_mux_texts[] =
 249                 {"LIN1", "LIN2", "LIN3", "LIN4"};
 250 static const struct soc_enum ak4671_lin_mux_enum =
 251         SOC_ENUM_SINGLE(AK4671_MIC_SIGNAL_SELECT, 0,
 252                         ARRAY_SIZE(ak4671_lin_mux_texts),
 253                         ak4671_lin_mux_texts);
 254 static const struct snd_kcontrol_new ak4671_lin_mux_control =
 255         SOC_DAPM_ENUM("Route", ak4671_lin_mux_enum);
 256
 257 static const char *ak4671_rin_mux_texts[] =
 258                 {"RIN1", "RIN2", "RIN3", "RIN4"};
 259 static const struct soc_enum ak4671_rin_mux_enum =
 260         SOC_ENUM_SINGLE(AK4671_MIC_SIGNAL_SELECT, 2,
 261                         ARRAY_SIZE(ak4671_rin_mux_texts),
 262                         ak4671_rin_mux_texts);
 263 static const struct snd_kcontrol_new ak4671_rin_mux_control =
 264         SOC_DAPM_ENUM("Route", ak4671_rin_mux_enum);
 265
 266 static const struct snd_soc_dapm_widget ak4671_dapm_widgets[] = {
 267         /* Inputs */
 268         SND_SOC_DAPM_INPUT("LIN1"),
 269         SND_SOC_DAPM_INPUT("RIN1"),
 270         SND_SOC_DAPM_INPUT("LIN2"),
 271         SND_SOC_DAPM_INPUT("RIN2"),
 272         SND_SOC_DAPM_INPUT("LIN3"),
 273         SND_SOC_DAPM_INPUT("RIN3"),
 274         SND_SOC_DAPM_INPUT("LIN4"),
 275         SND_SOC_DAPM_INPUT("RIN4"),
 276
 277         /* Outputs */
 278         SND_SOC_DAPM_OUTPUT("LOUT1"),
 279         SND_SOC_DAPM_OUTPUT("ROUT1"),
 280         SND_SOC_DAPM_OUTPUT("LOUT2"),
 281         SND_SOC_DAPM_OUTPUT("ROUT2"),
 282         SND_SOC_DAPM_OUTPUT("LOUT3"),
 283         SND_SOC_DAPM_OUTPUT("ROUT3"),
 284
 285         /* DAC */
 286         SND_SOC_DAPM_DAC("DAC Left", "Left HiFi Playback",
 287                         AK4671_AD_DA_POWER_MANAGEMENT, 6, 0),
 288         SND_SOC_DAPM_DAC("DAC Right", "Right HiFi Playback",
 289                         AK4671_AD_DA_POWER_MANAGEMENT, 7, 0),
 290
 291         /* ADC */
 292         SND_SOC_DAPM_ADC("ADC Left", "Left HiFi Capture",
 293                         AK4671_AD_DA_POWER_MANAGEMENT, 4, 0),
 294         SND_SOC_DAPM_ADC("ADC Right", "Right HiFi Capture",
 295                         AK4671_AD_DA_POWER_MANAGEMENT, 5, 0),
 296
 297         /* PGA */
 298         SND_SOC_DAPM_PGA("LOUT2 Mix Amp",
 299                         AK4671_LOUT2_POWER_MANAGERMENT, 5, 0, NULL, 0),
 300         SND_SOC_DAPM_PGA("ROUT2 Mix Amp",
 301                         AK4671_LOUT2_POWER_MANAGERMENT, 6, 0, NULL, 0),
 302
 303         SND_SOC_DAPM_PGA("LIN1 Mixing Circuit",
 304                         AK4671_MIXING_POWER_MANAGEMENT1, 0, 0, NULL, 0),
 305         SND_SOC_DAPM_PGA("RIN1 Mixing Circuit",
 306                         AK4671_MIXING_POWER_MANAGEMENT1, 1, 0, NULL, 0),
 307         SND_SOC_DAPM_PGA("LIN2 Mixing Circuit",
 308                         AK4671_MIXING_POWER_MANAGEMENT1, 2, 0, NULL, 0),
 309         SND_SOC_DAPM_PGA("RIN2 Mixing Circuit",
 310                         AK4671_MIXING_POWER_MANAGEMENT1, 3, 0, NULL, 0),
 311         SND_SOC_DAPM_PGA("LIN3 Mixing Circuit",
 312                         AK4671_MIXING_POWER_MANAGEMENT1, 4, 0, NULL, 0),
 313         SND_SOC_DAPM_PGA("RIN3 Mixing Circuit",
 314                         AK4671_MIXING_POWER_MANAGEMENT1, 5, 0, NULL, 0),
 315         SND_SOC_DAPM_PGA("LIN4 Mixing Circuit",
 316                         AK4671_MIXING_POWER_MANAGEMENT1, 6, 0, NULL, 0),
 317         SND_SOC_DAPM_PGA("RIN4 Mixing Circuit",
 318                         AK4671_MIXING_POWER_MANAGEMENT1, 7, 0, NULL, 0),
 319
 320         /* Output Mixers */
 321         SND_SOC_DAPM_MIXER("LOUT1 Mixer", AK4671_LOUT1_POWER_MANAGERMENT, 0, 0,
 322                         &ak4671_lout1_mixer_controls[0],
 323                         ARRAY_SIZE(ak4671_lout1_mixer_controls)),
 324         SND_SOC_DAPM_MIXER("ROUT1 Mixer", AK4671_LOUT1_POWER_MANAGERMENT, 1, 0,
 325                         &ak4671_rout1_mixer_controls[0],
 326                         ARRAY_SIZE(ak4671_rout1_mixer_controls)),
 327         SND_SOC_DAPM_MIXER_E("LOUT2 Mixer", AK4671_LOUT2_POWER_MANAGERMENT,
 328                         0, 0, &ak4671_lout2_mixer_controls[0],
 329                         ARRAY_SIZE(ak4671_lout2_mixer_controls),
 330                         ak4671_out2_event,
 331                         SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_PRE_PMD),
 332         SND_SOC_DAPM_MIXER_E("ROUT2 Mixer", AK4671_LOUT2_POWER_MANAGERMENT,
 333                         1, 0, &ak4671_rout2_mixer_controls[0],
 334                         ARRAY_SIZE(ak4671_rout2_mixer_controls),
 335                         ak4671_out2_event,
 336                         SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_PRE_PMD),
 337         SND_SOC_DAPM_MIXER("LOUT3 Mixer", AK4671_LOUT3_POWER_MANAGERMENT, 0, 0,
 338                         &ak4671_lout3_mixer_controls[0],
 339                         ARRAY_SIZE(ak4671_lout3_mixer_controls)),
 340         SND_SOC_DAPM_MIXER("ROUT3 Mixer", AK4671_LOUT3_POWER_MANAGERMENT, 1, 0,
 341                         &ak4671_rout3_mixer_controls[0],
 342                         ARRAY_SIZE(ak4671_rout3_mixer_controls)),
 343
 344         /* Input MUXs */
 345         SND_SOC_DAPM_MUX("LIN MUX", AK4671_AD_DA_POWER_MANAGEMENT, 2, 0,
 346                         &ak4671_lin_mux_control),
 347         SND_SOC_DAPM_MUX("RIN MUX", AK4671_AD_DA_POWER_MANAGEMENT, 3, 0,
 348                         &ak4671_rin_mux_control),
 349
 350         /* Mic Power */
 351         SND_SOC_DAPM_MICBIAS("Mic Bias", AK4671_AD_DA_POWER_MANAGEMENT, 1, 0),
 352
 353         /* Supply */
 354         SND_SOC_DAPM_SUPPLY("PMPLL", AK4671_PLL_MODE_SELECT1, 0, 0, NULL, 0),
 355 };
 356
 357 static const struct snd_soc_dapm_route intercon[] = {
 358         {"DAC Left", "NULL", "PMPLL"},
 359         {"DAC Right", "NULL", "PMPLL"},
 360         {"ADC Left", "NULL", "PMPLL"},
 361         {"ADC Right", "NULL", "PMPLL"},
 362
 363         /* Outputs */
 364         {"LOUT1", "NULL", "LOUT1 Mixer"},
 365         {"ROUT1", "NULL", "ROUT1 Mixer"},
 366         {"LOUT2", "NULL", "LOUT2 Mix Amp"},
 367         {"ROUT2", "NULL", "ROUT2 Mix Amp"},
 368         {"LOUT3", "NULL", "LOUT3 Mixer"},
 369         {"ROUT3", "NULL", "ROUT3 Mixer"},
 370
 371         {"LOUT1 Mixer", "DACL", "DAC Left"},
 372         {"ROUT1 Mixer", "DACR", "DAC Right"},
 373         {"LOUT2 Mixer", "DACHL", "DAC Left"},
 374         {"ROUT2 Mixer", "DACHR", "DAC Right"},
 375         {"LOUT2 Mix Amp", "NULL", "LOUT2 Mixer"},
 376         {"ROUT2 Mix Amp", "NULL", "ROUT2 Mixer"},
 377         {"LOUT3 Mixer", "DACSL", "DAC Left"},
 378         {"ROUT3 Mixer", "DACSR", "DAC Right"},
 379
 380         /* Inputs */
 381         {"LIN MUX", "LIN1", "LIN1"},
 382         {"LIN MUX", "LIN2", "LIN2"},
 383         {"LIN MUX", "LIN3", "LIN3"},
 384         {"LIN MUX", "LIN4", "LIN4"},
 385
 386         {"RIN MUX", "RIN1", "RIN1"},
 387         {"RIN MUX", "RIN2", "RIN2"},
 388         {"RIN MUX", "RIN3", "RIN3"},
 389         {"RIN MUX", "RIN4", "RIN4"},
 390
 391         {"LIN1", NULL, "Mic Bias"},
 392         {"RIN1", NULL, "Mic Bias"},
 393         {"LIN2", NULL, "Mic Bias"},
 394         {"RIN2", NULL, "Mic Bias"},
 395
 396         {"ADC Left", "NULL", "LIN MUX"},
 397         {"ADC Right", "NULL", "RIN MUX"},
 398
 399         /* Analog Loops */
 400         {"LIN1 Mixing Circuit", "NULL", "LIN1"},
 401         {"RIN1 Mixing Circuit", "NULL", "RIN1"},
 402         {"LIN2 Mixing Circuit", "NULL", "LIN2"},
 403         {"RIN2 Mixing Circuit", "NULL", "RIN2"},
 404         {"LIN3 Mixing Circuit", "NULL", "LIN3"},
 405         {"RIN3 Mixing Circuit", "NULL", "RIN3"},
 406         {"LIN4 Mixing Circuit", "NULL", "LIN4"},
 407         {"RIN4 Mixing Circuit", "NULL", "RIN4"},
 408
 409         {"LOUT1 Mixer", "LINL1", "LIN1 Mixing Circuit"},
 410         {"ROUT1 Mixer", "RINR1", "RIN1 Mixing Circuit"},
 411         {"LOUT2 Mixer", "LINH1", "LIN1 Mixing Circuit"},
 412         {"ROUT2 Mixer", "RINH1", "RIN1 Mixing Circuit"},
 413         {"LOUT3 Mixer", "LINS1", "LIN1 Mixing Circuit"},
 414         {"ROUT3 Mixer", "RINS1", "RIN1 Mixing Circuit"},
 415
 416         {"LOUT1 Mixer", "LINL2", "LIN2 Mixing Circuit"},
 417         {"ROUT1 Mixer", "RINR2", "RIN2 Mixing Circuit"},
 418         {"LOUT2 Mixer", "LINH2", "LIN2 Mixing Circuit"},
 419         {"ROUT2 Mixer", "RINH2", "RIN2 Mixing Circuit"},
 420         {"LOUT3 Mixer", "LINS2", "LIN2 Mixing Circuit"},
 421         {"ROUT3 Mixer", "RINS2", "RIN2 Mixing Circuit"},
 422
 423         {"LOUT1 Mixer", "LINL3", "LIN3 Mixing Circuit"},
 424         {"ROUT1 Mixer", "RINR3", "RIN3 Mixing Circuit"},
 425         {"LOUT2 Mixer", "LINH3", "LIN3 Mixing Circuit"},
 426         {"ROUT2 Mixer", "RINH3", "RIN3 Mixing Circuit"},
 427         {"LOUT3 Mixer", "LINS3", "LIN3 Mixing Circuit"},
 428         {"ROUT3 Mixer", "RINS3", "RIN3 Mixing Circuit"},
 429
 430         {"LOUT1 Mixer", "LINL4", "LIN4 Mixing Circuit"},
 431         {"ROUT1 Mixer", "RINR4", "RIN4 Mixing Circuit"},
 432         {"LOUT2 Mixer", "LINH4", "LIN4 Mixing Circuit"},
 433         {"ROUT2 Mixer", "RINH4", "RIN4 Mixing Circuit"},
 434         {"LOUT3 Mixer", "LINS4", "LIN4 Mixing Circuit"},
 435         {"ROUT3 Mixer", "RINS4", "RIN4 Mixing Circuit"},
 436 };
 437
 438 static int ak4671_add_widgets(struct snd_soc_codec *codec)
 439 {
 440         snd_soc_dapm_new_controls(codec, ak4671_dapm_widgets,
 441                                   ARRAY_SIZE(ak4671_dapm_widgets));
 442
 443         snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
 444
 445         return 0;
 446 }
 447
 448 static int ak4671_hw_params(struct snd_pcm_substream *substream,
 449                 struct snd_pcm_hw_params *params,
 450                 struct snd_soc_dai *dai)
 451 {
 452         struct snd_soc_codec *codec = dai->codec;
 453         u8 fs;
 454
 455         fs = snd_soc_read(codec, AK4671_PLL_MODE_SELECT0);
 456         fs &= ~AK4671_FS;
 457
 458         switch (params_rate(params)) {
 459         case 8000:
 460                 fs |= AK4671_FS_8KHZ;
 461                 break;
 462         case 12000:
 463                 fs |= AK4671_FS_12KHZ;
 464                 break;
 465         case 16000:
 466                 fs |= AK4671_FS_16KHZ;
 467                 break;
 468         case 24000:
 469                 fs |= AK4671_FS_24KHZ;
 470                 break;
 471         case 11025:
 472                 fs |= AK4671_FS_11_025KHZ;
 473                 break;
 474         case 22050:
 475                 fs |= AK4671_FS_22_05KHZ;
 476                 break;
 477         case 32000:
 478                 fs |= AK4671_FS_32KHZ;
 479                 break;
 480         case 44100:
 481                 fs |= AK4671_FS_44_1KHZ;
 482                 break;
 483         case 48000:
 484                 fs |= AK4671_FS_48KHZ;
 485                 break;
 486         default:
 487                 return -EINVAL;
 488         }
 489
 490         snd_soc_write(codec, AK4671_PLL_MODE_SELECT0, fs);
 491
 492         return 0;
 493 }
 494
 495 static int ak4671_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
 496                 unsigned int freq, int dir)
 497 {
 498         struct snd_soc_codec *codec = dai->codec;
 499         u8 pll;
 500
 501         pll = snd_soc_read(codec, AK4671_PLL_MODE_SELECT0);
 502         pll &= ~AK4671_PLL;
 503
 504         switch (freq) {
 505         case 11289600:
 506                 pll |= AK4671_PLL_11_2896MHZ;
 507                 break;
 508         case 12000000:
 509                 pll |= AK4671_PLL_12MHZ;
 510                 break;
 511         case 12288000:
 512                 pll |= AK4671_PLL_12_288MHZ;
 513                 break;
 514         case 13000000:
 515                 pll |= AK4671_PLL_13MHZ;
 516                 break;
 517         case 13500000:
 518                 pll |= AK4671_PLL_13_5MHZ;
 519                 break;
 520         case 19200000:
 521                 pll |= AK4671_PLL_19_2MHZ;
 522                 break;
 523         case 24000000:
 524                 pll |= AK4671_PLL_24MHZ;
 525                 break;
 526         case 26000000:
 527                 pll |= AK4671_PLL_26MHZ;
 528                 break;
 529         case 27000000:
 530                 pll |= AK4671_PLL_27MHZ;
 531                 break;
 532         default:
 533                 return -EINVAL;
 534         }
 535
 536         snd_soc_write(codec, AK4671_PLL_MODE_SELECT0, pll);
 537
 538         return 0;
 539 }
 540
 541 static int ak4671_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 542 {
 543         struct snd_soc_codec *codec = dai->codec;
 544         u8 mode;
 545         u8 format;
 546
 547         /* set master/slave audio interface */
 548         mode = snd_soc_read(codec, AK4671_PLL_MODE_SELECT1);
 549
 550         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 551         case SND_SOC_DAIFMT_CBM_CFM:
 552                 mode |= AK4671_M_S;
 553                 break;
 554         case SND_SOC_DAIFMT_CBM_CFS:
 555                 mode &= ~(AK4671_M_S);
 556                 break;
 557         default:
 558                 return -EINVAL;
 559         }
 560
 561         /* interface format */
 562         format = snd_soc_read(codec, AK4671_FORMAT_SELECT);
 563         format &= ~AK4671_DIF;
 564
 565         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 566         case SND_SOC_DAIFMT_I2S:
 567                 format |= AK4671_DIF_I2S_MODE;
 568                 break;
 569         case SND_SOC_DAIFMT_LEFT_J:
 570                 format |= AK4671_DIF_MSB_MODE;
 571                 break;
 572         case SND_SOC_DAIFMT_DSP_A:
 573                 format |= AK4671_DIF_DSP_MODE;
 574                 format |= AK4671_BCKP;
 575                 format |= AK4671_MSBS;
 576                 break;
 577         default:
 578                 return -EINVAL;
 579         }
 580
 581         /* set mode and format */
 582         snd_soc_write(codec, AK4671_PLL_MODE_SELECT1, mode);
 583         snd_soc_write(codec, AK4671_FORMAT_SELECT, format);
 584
 585         return 0;
 586 }
 587
 588 static int ak4671_set_bias_level(struct snd_soc_codec *codec,
 589                 enum snd_soc_bias_level level)
 590 {
 591         u8 reg;
 592
 593         switch (level) {
 594         case SND_SOC_BIAS_ON:
 595         case SND_SOC_BIAS_PREPARE:
 596         case SND_SOC_BIAS_STANDBY:
 597                 reg = snd_soc_read(codec, AK4671_AD_DA_POWER_MANAGEMENT);
 598                 snd_soc_write(codec, AK4671_AD_DA_POWER_MANAGEMENT,
 599                                 reg | AK4671_PMVCM);
 600                 break;
 601         case SND_SOC_BIAS_OFF:
 602                 snd_soc_write(codec, AK4671_AD_DA_POWER_MANAGEMENT, 0x00);
 603                 break;
 604         }
 605         codec->bias_level = level;
 606         return 0;
 607 }
 608
 609 #define AK4671_RATES            (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
 610                                 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
 611                                 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
 612                                 SNDRV_PCM_RATE_48000)
 613
 614 #define AK4671_FORMATS          SNDRV_PCM_FMTBIT_S16_LE
 615
 616 static struct snd_soc_dai_ops ak4671_dai_ops = {
 617         .hw_params      = ak4671_hw_params,
 618         .set_sysclk     = ak4671_set_dai_sysclk,
 619         .set_fmt        = ak4671_set_dai_fmt,
 620 };
 621
 622 struct snd_soc_dai ak4671_dai = {
 623         .name = "AK4671",
 624         .playback = {
 625                 .stream_name = "Playback",
 626                 .channels_min = 1,
 627                 .channels_max = 2,
 628                 .rates = AK4671_RATES,
 629                 .formats = AK4671_FORMATS,},
 630         .capture = {
 631                 .stream_name = "Capture",
 632                 .channels_min = 1,
 633                 .channels_max = 2,
 634                 .rates = AK4671_RATES,
 635                 .formats = AK4671_FORMATS,},
 636         .ops = &ak4671_dai_ops,
 637 };
 638 EXPORT_SYMBOL_GPL(ak4671_dai);
 639
 640 static int ak4671_probe(struct platform_device *pdev)
 641 {
 642         struct snd_soc_device *socdev = platform_get_drvdata(pdev);
 643         struct snd_soc_codec *codec;
 644         int ret = 0;
 645
 646         if (ak4671_codec == NULL) {
 647                 dev_err(&pdev->dev, "Codec device not registered\n");
 648                 return -ENODEV;
 649         }
 650
 651         socdev->card->codec = ak4671_codec;
 652         codec = ak4671_codec;
 653
 654         /* register pcms */
 655         ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
 656         if (ret < 0) {
 657                 dev_err(codec->dev, "failed to create pcms: %d\n", ret);
 658                 goto pcm_err;
 659         }
 660
 661         snd_soc_add_controls(codec, ak4671_snd_controls,
 662                              ARRAY_SIZE(ak4671_snd_controls));
 663         ak4671_add_widgets(codec);
 664
 665         ak4671_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 666
 667         return ret;
 668
 669 pcm_err:
 670         return ret;
 671 }
 672
 673 static int ak4671_remove(struct platform_device *pdev)
 674 {
 675         struct snd_soc_device *socdev = platform_get_drvdata(pdev);
 676
 677         snd_soc_free_pcms(socdev);
 678         snd_soc_dapm_free(socdev);
 679
 680         return 0;
 681 }
 682
 683 struct snd_soc_codec_device soc_codec_dev_ak4671 = {
 684         .probe = ak4671_probe,
 685         .remove = ak4671_remove,
 686 };
 687 EXPORT_SYMBOL_GPL(soc_codec_dev_ak4671);
 688
 689 static int ak4671_register(struct ak4671_priv *ak4671,
 690                 enum snd_soc_control_type control)
 691 {
 692         int ret;
 693         struct snd_soc_codec *codec = &ak4671->codec;
 694
 695         if (ak4671_codec) {
 696                 dev_err(codec->dev, "Another AK4671 is registered\n");
 697                 ret = -EINVAL;
 698                 goto err;
 699         }
 700
 701         mutex_init(&codec->mutex);
 702         INIT_LIST_HEAD(&codec->dapm_widgets);
 703         INIT_LIST_HEAD(&codec->dapm_paths);
 704
 705         codec->private_data = ak4671;
 706         codec->name = "AK4671";
 707         codec->owner = THIS_MODULE;
 708         codec->bias_level = SND_SOC_BIAS_OFF;
 709         codec->set_bias_level = ak4671_set_bias_level;
 710         codec->dai = &ak4671_dai;
 711         codec->num_dai = 1;
 712         codec->reg_cache_size = AK4671_CACHEREGNUM;
 713         codec->reg_cache = &ak4671->reg_cache;
 714
 715         memcpy(codec->reg_cache, ak4671_reg, sizeof(ak4671_reg));
 716
 717         ret = snd_soc_codec_set_cache_io(codec, 8, 8, control);
 718         if (ret < 0) {
 719                 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
 720                 goto err;
 721         }
 722
 723         ak4671_dai.dev = codec->dev;
 724         ak4671_codec = codec;
 725
 726         ret = snd_soc_register_codec(codec);
 727         if (ret != 0) {
 728                 dev_err(codec->dev, "Failed to register codec: %d\n", ret);
 729                 goto err;
 730         }
 731
 732         ret = snd_soc_register_dai(&ak4671_dai);
 733         if (ret != 0) {
 734                 dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
 735                 goto err_codec;
 736         }
 737
 738         return 0;
 739
 740 err_codec:
 741         snd_soc_unregister_codec(codec);
 742 err:
 743         kfree(ak4671);
 744         return ret;
 745 }
 746
 747 static void ak4671_unregister(struct ak4671_priv *ak4671)
 748 {
 749         ak4671_set_bias_level(&ak4671->codec, SND_SOC_BIAS_OFF);
 750         snd_soc_unregister_dai(&ak4671_dai);
 751         snd_soc_unregister_codec(&ak4671->codec);
 752         kfree(ak4671);
 753         ak4671_codec = NULL;
 754 }
 755
 756 static int __devinit ak4671_i2c_probe(struct i2c_client *client,
 757                 const struct i2c_device_id *id)
 758 {
 759         struct ak4671_priv *ak4671;
 760         struct snd_soc_codec *codec;
 761
 762         ak4671 = kzalloc(sizeof(struct ak4671_priv), GFP_KERNEL);
 763         if (ak4671 == NULL)
 764                 return -ENOMEM;
 765
 766         codec = &ak4671->codec;
 767         codec->hw_write = (hw_write_t)i2c_master_send;
 768
 769         i2c_set_clientdata(client, ak4671);
 770         codec->control_data = client;
 771
 772         codec->dev = &client->dev;
 773
 774         return ak4671_register(ak4671, SND_SOC_I2C);
 775 }
 776
 777 static __devexit int ak4671_i2c_remove(struct i2c_client *client)
 778 {
 779         struct ak4671_priv *ak4671 = i2c_get_clientdata(client);
 780
 781         ak4671_unregister(ak4671);
 782
 783         return 0;
 784 }
 785
 786 static const struct i2c_device_id ak4671_i2c_id[] = {
 787         { "ak4671", 0 },
 788         { }
 789 };
 790 MODULE_DEVICE_TABLE(i2c, ak4671_i2c_id);
 791
 792 static struct i2c_driver ak4671_i2c_driver = {
 793         .driver = {
 794                 .name = "ak4671",
 795                 .owner = THIS_MODULE,
 796         },
 797         .probe = ak4671_i2c_probe,
 798         .remove = __devexit_p(ak4671_i2c_remove),
 799         .id_table = ak4671_i2c_id,
 800 };
 801
 802 static int __init ak4671_modinit(void)
 803 {
 804         return i2c_add_driver(&ak4671_i2c_driver);
 805 }
 806 module_init(ak4671_modinit);
 807
 808 static void __exit ak4671_exit(void)
 809 {
 810         i2c_del_driver(&ak4671_i2c_driver);
 811 }
 812 module_exit(ak4671_exit);
 813
 814 MODULE_DESCRIPTION("ASoC AK4671 codec driver");
 815 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
 816 MODULE_LICENSE("GPL");