ASoC: AK4671: add ak4671 codec driver
The AK4671 is a stereo CODEC with a built-in Microphone-Amplifier,
Receiver-Amplifier and Headphone-Amplifier.
The datasheet for the ak4671 can find at the following url:
http://www.asahi-kasei.co.jp/akm/en/product/ak4671/ak4671_f01e.pdf
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/ak4671.c b/sound/soc/codecs/ak4671.c
new file mode 100644
index 0000000..b61214d
--- /dev/null
+++ b/sound/soc/codecs/ak4671.c
@@ -0,0 +1,825 @@
+/*
+ * ak4671.c -- audio driver for AK4671
+ *
+ * Copyright (C) 2009 Samsung Electronics Co.Ltd
+ * Author: Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/initval.h>
+#include <sound/tlv.h>
+
+#include "ak4671.h"
+
+static struct snd_soc_codec *ak4671_codec;
+
+/* codec private data */
+struct ak4671_priv {
+ struct snd_soc_codec codec;
+ u8 reg_cache[AK4671_CACHEREGNUM];
+};
+
+/* ak4671 register cache & default register settings */
+static const u8 ak4671_reg[AK4671_CACHEREGNUM] = {
+ 0x00, /* AK4671_AD_DA_POWER_MANAGEMENT (0x00) */
+ 0xf6, /* AK4671_PLL_MODE_SELECT0 (0x01) */
+ 0x00, /* AK4671_PLL_MODE_SELECT1 (0x02) */
+ 0x02, /* AK4671_FORMAT_SELECT (0x03) */
+ 0x00, /* AK4671_MIC_SIGNAL_SELECT (0x04) */
+ 0x55, /* AK4671_MIC_AMP_GAIN (0x05) */
+ 0x00, /* AK4671_MIXING_POWER_MANAGEMENT0 (0x06) */
+ 0x00, /* AK4671_MIXING_POWER_MANAGEMENT1 (0x07) */
+ 0xb5, /* AK4671_OUTPUT_VOLUME_CONTROL (0x08) */
+ 0x00, /* AK4671_LOUT1_SIGNAL_SELECT (0x09) */
+ 0x00, /* AK4671_ROUT1_SIGNAL_SELECT (0x0a) */
+ 0x00, /* AK4671_LOUT2_SIGNAL_SELECT (0x0b) */
+ 0x00, /* AK4671_ROUT2_SIGNAL_SELECT (0x0c) */
+ 0x00, /* AK4671_LOUT3_SIGNAL_SELECT (0x0d) */
+ 0x00, /* AK4671_ROUT3_SIGNAL_SELECT (0x0e) */
+ 0x00, /* AK4671_LOUT1_POWER_MANAGERMENT (0x0f) */
+ 0x00, /* AK4671_LOUT2_POWER_MANAGERMENT (0x10) */
+ 0x80, /* AK4671_LOUT3_POWER_MANAGERMENT (0x11) */
+ 0x91, /* AK4671_LCH_INPUT_VOLUME_CONTROL (0x12) */
+ 0x91, /* AK4671_RCH_INPUT_VOLUME_CONTROL (0x13) */
+ 0xe1, /* AK4671_ALC_REFERENCE_SELECT (0x14) */
+ 0x00, /* AK4671_DIGITAL_MIXING_CONTROL (0x15) */
+ 0x00, /* AK4671_ALC_TIMER_SELECT (0x16) */
+ 0x00, /* AK4671_ALC_MODE_CONTROL (0x17) */
+ 0x02, /* AK4671_MODE_CONTROL1 (0x18) */
+ 0x01, /* AK4671_MODE_CONTROL2 (0x19) */
+ 0x18, /* AK4671_LCH_OUTPUT_VOLUME_CONTROL (0x1a) */
+ 0x18, /* AK4671_RCH_OUTPUT_VOLUME_CONTROL (0x1b) */
+ 0x00, /* AK4671_SIDETONE_A_CONTROL (0x1c) */
+ 0x02, /* AK4671_DIGITAL_FILTER_SELECT (0x1d) */
+ 0x00, /* AK4671_FIL3_COEFFICIENT0 (0x1e) */
+ 0x00, /* AK4671_FIL3_COEFFICIENT1 (0x1f) */
+ 0x00, /* AK4671_FIL3_COEFFICIENT2 (0x20) */
+ 0x00, /* AK4671_FIL3_COEFFICIENT3 (0x21) */
+ 0x00, /* AK4671_EQ_COEFFICIENT0 (0x22) */
+ 0x00, /* AK4671_EQ_COEFFICIENT1 (0x23) */
+ 0x00, /* AK4671_EQ_COEFFICIENT2 (0x24) */
+ 0x00, /* AK4671_EQ_COEFFICIENT3 (0x25) */
+ 0x00, /* AK4671_EQ_COEFFICIENT4 (0x26) */
+ 0x00, /* AK4671_EQ_COEFFICIENT5 (0x27) */
+ 0xa9, /* AK4671_FIL1_COEFFICIENT0 (0x28) */
+ 0x1f, /* AK4671_FIL1_COEFFICIENT1 (0x29) */
+ 0xad, /* AK4671_FIL1_COEFFICIENT2 (0x2a) */
+ 0x20, /* AK4671_FIL1_COEFFICIENT3 (0x2b) */
+ 0x00, /* AK4671_FIL2_COEFFICIENT0 (0x2c) */
+ 0x00, /* AK4671_FIL2_COEFFICIENT1 (0x2d) */
+ 0x00, /* AK4671_FIL2_COEFFICIENT2 (0x2e) */
+ 0x00, /* AK4671_FIL2_COEFFICIENT3 (0x2f) */
+ 0x00, /* AK4671_DIGITAL_FILTER_SELECT2 (0x30) */
+ 0x00, /* this register not used */
+ 0x00, /* AK4671_E1_COEFFICIENT0 (0x32) */
+ 0x00, /* AK4671_E1_COEFFICIENT1 (0x33) */
+ 0x00, /* AK4671_E1_COEFFICIENT2 (0x34) */
+ 0x00, /* AK4671_E1_COEFFICIENT3 (0x35) */
+ 0x00, /* AK4671_E1_COEFFICIENT4 (0x36) */
+ 0x00, /* AK4671_E1_COEFFICIENT5 (0x37) */
+ 0x00, /* AK4671_E2_COEFFICIENT0 (0x38) */
+ 0x00, /* AK4671_E2_COEFFICIENT1 (0x39) */
+ 0x00, /* AK4671_E2_COEFFICIENT2 (0x3a) */
+ 0x00, /* AK4671_E2_COEFFICIENT3 (0x3b) */
+ 0x00, /* AK4671_E2_COEFFICIENT4 (0x3c) */
+ 0x00, /* AK4671_E2_COEFFICIENT5 (0x3d) */
+ 0x00, /* AK4671_E3_COEFFICIENT0 (0x3e) */
+ 0x00, /* AK4671_E3_COEFFICIENT1 (0x3f) */
+ 0x00, /* AK4671_E3_COEFFICIENT2 (0x40) */
+ 0x00, /* AK4671_E3_COEFFICIENT3 (0x41) */
+ 0x00, /* AK4671_E3_COEFFICIENT4 (0x42) */
+ 0x00, /* AK4671_E3_COEFFICIENT5 (0x43) */
+ 0x00, /* AK4671_E4_COEFFICIENT0 (0x44) */
+ 0x00, /* AK4671_E4_COEFFICIENT1 (0x45) */
+ 0x00, /* AK4671_E4_COEFFICIENT2 (0x46) */
+ 0x00, /* AK4671_E4_COEFFICIENT3 (0x47) */
+ 0x00, /* AK4671_E4_COEFFICIENT4 (0x48) */
+ 0x00, /* AK4671_E4_COEFFICIENT5 (0x49) */
+ 0x00, /* AK4671_E5_COEFFICIENT0 (0x4a) */
+ 0x00, /* AK4671_E5_COEFFICIENT1 (0x4b) */
+ 0x00, /* AK4671_E5_COEFFICIENT2 (0x4c) */
+ 0x00, /* AK4671_E5_COEFFICIENT3 (0x4d) */
+ 0x00, /* AK4671_E5_COEFFICIENT4 (0x4e) */
+ 0x00, /* AK4671_E5_COEFFICIENT5 (0x4f) */
+ 0x88, /* AK4671_EQ_CONTROL_250HZ_100HZ (0x50) */
+ 0x88, /* AK4671_EQ_CONTROL_3500HZ_1KHZ (0x51) */
+ 0x08, /* AK4671_EQ_CONTRO_10KHZ (0x52) */
+ 0x00, /* AK4671_PCM_IF_CONTROL0 (0x53) */
+ 0x00, /* AK4671_PCM_IF_CONTROL1 (0x54) */
+ 0x00, /* AK4671_PCM_IF_CONTROL2 (0x55) */
+ 0x18, /* AK4671_DIGITAL_VOLUME_B_CONTROL (0x56) */
+ 0x18, /* AK4671_DIGITAL_VOLUME_C_CONTROL (0x57) */
+ 0x00, /* AK4671_SIDETONE_VOLUME_CONTROL (0x58) */
+ 0x00, /* AK4671_DIGITAL_MIXING_CONTROL2 (0x59) */
+ 0x00, /* AK4671_SAR_ADC_CONTROL (0x5a) */
+};
+
+/*
+ * LOUT1/ROUT1 output volume control:
+ * from -24 to 6 dB in 6 dB steps (mute instead of -30 dB)
+ */
+static DECLARE_TLV_DB_SCALE(out1_tlv, -3000, 600, 1);
+
+/*
+ * LOUT2/ROUT2 output volume control:
+ * from -33 to 6 dB in 3 dB steps (mute instead of -33 dB)
+ */
+static DECLARE_TLV_DB_SCALE(out2_tlv, -3300, 300, 1);
+
+/*
+ * LOUT3/ROUT3 output volume control:
+ * from -6 to 3 dB in 3 dB steps
+ */
+static DECLARE_TLV_DB_SCALE(out3_tlv, -600, 300, 0);
+
+/*
+ * Mic amp gain control:
+ * from -15 to 30 dB in 3 dB steps
+ * REVISIT: The actual min value(0x01) is -12 dB and the reg value 0x00 is not
+ * available
+ */
+static DECLARE_TLV_DB_SCALE(mic_amp_tlv, -1500, 300, 0);
+
+static const struct snd_kcontrol_new ak4671_snd_controls[] = {
+ /* Common playback gain controls */
+ SOC_SINGLE_TLV("Line Output1 Playback Volume",
+ AK4671_OUTPUT_VOLUME_CONTROL, 0, 0x6, 0, out1_tlv),
+ SOC_SINGLE_TLV("Headphone Output2 Playback Volume",
+ AK4671_OUTPUT_VOLUME_CONTROL, 4, 0xd, 0, out2_tlv),
+ SOC_SINGLE_TLV("Line Output3 Playback Volume",
+ AK4671_LOUT3_POWER_MANAGERMENT, 6, 0x3, 0, out3_tlv),
+
+ /* Common capture gain controls */
+ SOC_DOUBLE_TLV("Mic Amp Capture Volume",
+ AK4671_MIC_AMP_GAIN, 0, 4, 0xf, 0, mic_amp_tlv),
+};
+
+/* event handlers */
+static int ak4671_out2_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_codec *codec = w->codec;
+ u8 reg;
+
+ switch (event) {
+ case SND_SOC_DAPM_POST_PMU:
+ reg = snd_soc_read(codec, AK4671_LOUT2_POWER_MANAGERMENT);
+ reg |= AK4671_MUTEN;
+ snd_soc_write(codec, AK4671_LOUT2_POWER_MANAGERMENT, reg);
+ break;
+ case SND_SOC_DAPM_PRE_PMD:
+ reg = snd_soc_read(codec, AK4671_LOUT2_POWER_MANAGERMENT);
+ reg &= ~AK4671_MUTEN;
+ snd_soc_write(codec, AK4671_LOUT2_POWER_MANAGERMENT, reg);
+ break;
+ }
+
+ return 0;
+}
+
+/* Output Mixers */
+static const struct snd_kcontrol_new ak4671_lout1_mixer_controls[] = {
+ SOC_DAPM_SINGLE("DACL", AK4671_LOUT1_SIGNAL_SELECT, 0, 1, 0),
+ SOC_DAPM_SINGLE("LINL1", AK4671_LOUT1_SIGNAL_SELECT, 1, 1, 0),
+ SOC_DAPM_SINGLE("LINL2", AK4671_LOUT1_SIGNAL_SELECT, 2, 1, 0),
+ SOC_DAPM_SINGLE("LINL3", AK4671_LOUT1_SIGNAL_SELECT, 3, 1, 0),
+ SOC_DAPM_SINGLE("LINL4", AK4671_LOUT1_SIGNAL_SELECT, 4, 1, 0),
+ SOC_DAPM_SINGLE("LOOPL", AK4671_LOUT1_SIGNAL_SELECT, 5, 1, 0),
+};
+
+static const struct snd_kcontrol_new ak4671_rout1_mixer_controls[] = {
+ SOC_DAPM_SINGLE("DACR", AK4671_ROUT1_SIGNAL_SELECT, 0, 1, 0),
+ SOC_DAPM_SINGLE("RINR1", AK4671_ROUT1_SIGNAL_SELECT, 1, 1, 0),
+ SOC_DAPM_SINGLE("RINR2", AK4671_ROUT1_SIGNAL_SELECT, 2, 1, 0),
+ SOC_DAPM_SINGLE("RINR3", AK4671_ROUT1_SIGNAL_SELECT, 3, 1, 0),
+ SOC_DAPM_SINGLE("RINR4", AK4671_ROUT1_SIGNAL_SELECT, 4, 1, 0),
+ SOC_DAPM_SINGLE("LOOPR", AK4671_ROUT1_SIGNAL_SELECT, 5, 1, 0),
+};
+
+static const struct snd_kcontrol_new ak4671_lout2_mixer_controls[] = {
+ SOC_DAPM_SINGLE("DACHL", AK4671_LOUT2_SIGNAL_SELECT, 0, 1, 0),
+ SOC_DAPM_SINGLE("LINH1", AK4671_LOUT2_SIGNAL_SELECT, 1, 1, 0),
+ SOC_DAPM_SINGLE("LINH2", AK4671_LOUT2_SIGNAL_SELECT, 2, 1, 0),
+ SOC_DAPM_SINGLE("LINH3", AK4671_LOUT2_SIGNAL_SELECT, 3, 1, 0),
+ SOC_DAPM_SINGLE("LINH4", AK4671_LOUT2_SIGNAL_SELECT, 4, 1, 0),
+ SOC_DAPM_SINGLE("LOOPHL", AK4671_LOUT2_SIGNAL_SELECT, 5, 1, 0),
+};
+
+static const struct snd_kcontrol_new ak4671_rout2_mixer_controls[] = {
+ SOC_DAPM_SINGLE("DACHR", AK4671_ROUT2_SIGNAL_SELECT, 0, 1, 0),
+ SOC_DAPM_SINGLE("RINH1", AK4671_ROUT2_SIGNAL_SELECT, 1, 1, 0),
+ SOC_DAPM_SINGLE("RINH2", AK4671_ROUT2_SIGNAL_SELECT, 2, 1, 0),
+ SOC_DAPM_SINGLE("RINH3", AK4671_ROUT2_SIGNAL_SELECT, 3, 1, 0),
+ SOC_DAPM_SINGLE("RINH4", AK4671_ROUT2_SIGNAL_SELECT, 4, 1, 0),
+ SOC_DAPM_SINGLE("LOOPHR", AK4671_ROUT2_SIGNAL_SELECT, 5, 1, 0),
+};
+
+static const struct snd_kcontrol_new ak4671_lout3_mixer_controls[] = {
+ SOC_DAPM_SINGLE("DACSL", AK4671_LOUT3_SIGNAL_SELECT, 0, 1, 0),
+ SOC_DAPM_SINGLE("LINS1", AK4671_LOUT3_SIGNAL_SELECT, 1, 1, 0),
+ SOC_DAPM_SINGLE("LINS2", AK4671_LOUT3_SIGNAL_SELECT, 2, 1, 0),
+ SOC_DAPM_SINGLE("LINS3", AK4671_LOUT3_SIGNAL_SELECT, 3, 1, 0),
+ SOC_DAPM_SINGLE("LINS4", AK4671_LOUT3_SIGNAL_SELECT, 4, 1, 0),
+ SOC_DAPM_SINGLE("LOOPSL", AK4671_LOUT3_SIGNAL_SELECT, 5, 1, 0),
+};
+
+static const struct snd_kcontrol_new ak4671_rout3_mixer_controls[] = {
+ SOC_DAPM_SINGLE("DACSR", AK4671_ROUT3_SIGNAL_SELECT, 0, 1, 0),
+ SOC_DAPM_SINGLE("RINS1", AK4671_ROUT3_SIGNAL_SELECT, 1, 1, 0),
+ SOC_DAPM_SINGLE("RINS2", AK4671_ROUT3_SIGNAL_SELECT, 2, 1, 0),
+ SOC_DAPM_SINGLE("RINS3", AK4671_ROUT3_SIGNAL_SELECT, 3, 1, 0),
+ SOC_DAPM_SINGLE("RINS4", AK4671_ROUT3_SIGNAL_SELECT, 4, 1, 0),
+ SOC_DAPM_SINGLE("LOOPSR", AK4671_ROUT3_SIGNAL_SELECT, 5, 1, 0),
+};
+
+/* Input MUXs */
+static const char *ak4671_lin_mux_texts[] =
+ {"LIN1", "LIN2", "LIN3", "LIN4"};
+static const struct soc_enum ak4671_lin_mux_enum =
+ SOC_ENUM_SINGLE(AK4671_MIC_SIGNAL_SELECT, 0,
+ ARRAY_SIZE(ak4671_lin_mux_texts),
+ ak4671_lin_mux_texts);
+static const struct snd_kcontrol_new ak4671_lin_mux_control =
+ SOC_DAPM_ENUM("Route", ak4671_lin_mux_enum);
+
+static const char *ak4671_rin_mux_texts[] =
+ {"RIN1", "RIN2", "RIN3", "RIN4"};
+static const struct soc_enum ak4671_rin_mux_enum =
+ SOC_ENUM_SINGLE(AK4671_MIC_SIGNAL_SELECT, 2,
+ ARRAY_SIZE(ak4671_rin_mux_texts),
+ ak4671_rin_mux_texts);
+static const struct snd_kcontrol_new ak4671_rin_mux_control =
+ SOC_DAPM_ENUM("Route", ak4671_rin_mux_enum);
+
+static const struct snd_soc_dapm_widget ak4671_dapm_widgets[] = {
+ /* Inputs */
+ SND_SOC_DAPM_INPUT("LIN1"),
+ SND_SOC_DAPM_INPUT("RIN1"),
+ SND_SOC_DAPM_INPUT("LIN2"),
+ SND_SOC_DAPM_INPUT("RIN2"),
+ SND_SOC_DAPM_INPUT("LIN3"),
+ SND_SOC_DAPM_INPUT("RIN3"),
+ SND_SOC_DAPM_INPUT("LIN4"),
+ SND_SOC_DAPM_INPUT("RIN4"),
+
+ /* Outputs */
+ SND_SOC_DAPM_OUTPUT("LOUT1"),
+ SND_SOC_DAPM_OUTPUT("ROUT1"),
+ SND_SOC_DAPM_OUTPUT("LOUT2"),
+ SND_SOC_DAPM_OUTPUT("ROUT2"),
+ SND_SOC_DAPM_OUTPUT("LOUT3"),
+ SND_SOC_DAPM_OUTPUT("ROUT3"),
+
+ /* DAC */
+ SND_SOC_DAPM_DAC("DAC Left", "Left HiFi Playback",
+ AK4671_AD_DA_POWER_MANAGEMENT, 6, 0),
+ SND_SOC_DAPM_DAC("DAC Right", "Right HiFi Playback",
+ AK4671_AD_DA_POWER_MANAGEMENT, 7, 0),
+
+ /* ADC */
+ SND_SOC_DAPM_ADC("ADC Left", "Left HiFi Capture",
+ AK4671_AD_DA_POWER_MANAGEMENT, 4, 0),
+ SND_SOC_DAPM_ADC("ADC Right", "Right HiFi Capture",
+ AK4671_AD_DA_POWER_MANAGEMENT, 5, 0),
+
+ /* PGA */
+ SND_SOC_DAPM_PGA("LOUT2 Mix Amp",
+ AK4671_LOUT2_POWER_MANAGERMENT, 5, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("ROUT2 Mix Amp",
+ AK4671_LOUT2_POWER_MANAGERMENT, 6, 0, NULL, 0),
+
+ SND_SOC_DAPM_PGA("LIN1 Mixing Circuit",
+ AK4671_MIXING_POWER_MANAGEMENT1, 0, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("RIN1 Mixing Circuit",
+ AK4671_MIXING_POWER_MANAGEMENT1, 1, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("LIN2 Mixing Circuit",
+ AK4671_MIXING_POWER_MANAGEMENT1, 2, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("RIN2 Mixing Circuit",
+ AK4671_MIXING_POWER_MANAGEMENT1, 3, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("LIN3 Mixing Circuit",
+ AK4671_MIXING_POWER_MANAGEMENT1, 4, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("RIN3 Mixing Circuit",
+ AK4671_MIXING_POWER_MANAGEMENT1, 5, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("LIN4 Mixing Circuit",
+ AK4671_MIXING_POWER_MANAGEMENT1, 6, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("RIN4 Mixing Circuit",
+ AK4671_MIXING_POWER_MANAGEMENT1, 7, 0, NULL, 0),
+
+ /* Output Mixers */
+ SND_SOC_DAPM_MIXER("LOUT1 Mixer", AK4671_LOUT1_POWER_MANAGERMENT, 0, 0,
+ &ak4671_lout1_mixer_controls[0],
+ ARRAY_SIZE(ak4671_lout1_mixer_controls)),
+ SND_SOC_DAPM_MIXER("ROUT1 Mixer", AK4671_LOUT1_POWER_MANAGERMENT, 1, 0,
+ &ak4671_rout1_mixer_controls[0],
+ ARRAY_SIZE(ak4671_rout1_mixer_controls)),
+ SND_SOC_DAPM_MIXER_E("LOUT2 Mixer", AK4671_LOUT2_POWER_MANAGERMENT,
+ 0, 0, &ak4671_lout2_mixer_controls[0],
+ ARRAY_SIZE(ak4671_lout2_mixer_controls),
+ ak4671_out2_event,
+ SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_PRE_PMD),
+ SND_SOC_DAPM_MIXER_E("ROUT2 Mixer", AK4671_LOUT2_POWER_MANAGERMENT,
+ 1, 0, &ak4671_rout2_mixer_controls[0],
+ ARRAY_SIZE(ak4671_rout2_mixer_controls),
+ ak4671_out2_event,
+ SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_PRE_PMD),
+ SND_SOC_DAPM_MIXER("LOUT3 Mixer", AK4671_LOUT3_POWER_MANAGERMENT, 0, 0,
+ &ak4671_lout3_mixer_controls[0],
+ ARRAY_SIZE(ak4671_lout3_mixer_controls)),
+ SND_SOC_DAPM_MIXER("ROUT3 Mixer", AK4671_LOUT3_POWER_MANAGERMENT, 1, 0,
+ &ak4671_rout3_mixer_controls[0],
+ ARRAY_SIZE(ak4671_rout3_mixer_controls)),
+
+ /* Input MUXs */
+ SND_SOC_DAPM_MUX("LIN MUX", AK4671_AD_DA_POWER_MANAGEMENT, 2, 0,
+ &ak4671_lin_mux_control),
+ SND_SOC_DAPM_MUX("RIN MUX", AK4671_AD_DA_POWER_MANAGEMENT, 3, 0,
+ &ak4671_rin_mux_control),
+
+ /* Mic Power */
+ SND_SOC_DAPM_MICBIAS("Mic Bias", AK4671_AD_DA_POWER_MANAGEMENT, 1, 0),
+
+ /* Supply */
+ SND_SOC_DAPM_SUPPLY("PMPLL", AK4671_PLL_MODE_SELECT1, 0, 0, NULL, 0),
+};
+
+static const struct snd_soc_dapm_route intercon[] = {
+ {"DAC Left", "NULL", "PMPLL"},
+ {"DAC Right", "NULL", "PMPLL"},
+ {"ADC Left", "NULL", "PMPLL"},
+ {"ADC Right", "NULL", "PMPLL"},
+
+ /* Outputs */
+ {"LOUT1", "NULL", "LOUT1 Mixer"},
+ {"ROUT1", "NULL", "ROUT1 Mixer"},
+ {"LOUT2", "NULL", "LOUT2 Mix Amp"},
+ {"ROUT2", "NULL", "ROUT2 Mix Amp"},
+ {"LOUT3", "NULL", "LOUT3 Mixer"},
+ {"ROUT3", "NULL", "ROUT3 Mixer"},
+
+ {"LOUT1 Mixer", "DACL", "DAC Left"},
+ {"ROUT1 Mixer", "DACR", "DAC Right"},
+ {"LOUT2 Mixer", "DACHL", "DAC Left"},
+ {"ROUT2 Mixer", "DACHR", "DAC Right"},
+ {"LOUT2 Mix Amp", "NULL", "LOUT2 Mixer"},
+ {"ROUT2 Mix Amp", "NULL", "ROUT2 Mixer"},
+ {"LOUT3 Mixer", "DACSL", "DAC Left"},
+ {"ROUT3 Mixer", "DACSR", "DAC Right"},
+
+ /* Inputs */
+ {"LIN MUX", "LIN1", "LIN1"},
+ {"LIN MUX", "LIN2", "LIN2"},
+ {"LIN MUX", "LIN3", "LIN3"},
+ {"LIN MUX", "LIN4", "LIN4"},
+
+ {"RIN MUX", "RIN1", "RIN1"},
+ {"RIN MUX", "RIN2", "RIN2"},
+ {"RIN MUX", "RIN3", "RIN3"},
+ {"RIN MUX", "RIN4", "RIN4"},
+
+ {"LIN1", NULL, "Mic Bias"},
+ {"RIN1", NULL, "Mic Bias"},
+ {"LIN2", NULL, "Mic Bias"},
+ {"RIN2", NULL, "Mic Bias"},
+
+ {"ADC Left", "NULL", "LIN MUX"},
+ {"ADC Right", "NULL", "RIN MUX"},
+
+ /* Analog Loops */
+ {"LIN1 Mixing Circuit", "NULL", "LIN1"},
+ {"RIN1 Mixing Circuit", "NULL", "RIN1"},
+ {"LIN2 Mixing Circuit", "NULL", "LIN2"},
+ {"RIN2 Mixing Circuit", "NULL", "RIN2"},
+ {"LIN3 Mixing Circuit", "NULL", "LIN3"},
+ {"RIN3 Mixing Circuit", "NULL", "RIN3"},
+ {"LIN4 Mixing Circuit", "NULL", "LIN4"},
+ {"RIN4 Mixing Circuit", "NULL", "RIN4"},
+
+ {"LOUT1 Mixer", "LINL1", "LIN1 Mixing Circuit"},
+ {"ROUT1 Mixer", "RINR1", "RIN1 Mixing Circuit"},
+ {"LOUT2 Mixer", "LINH1", "LIN1 Mixing Circuit"},
+ {"ROUT2 Mixer", "RINH1", "RIN1 Mixing Circuit"},
+ {"LOUT3 Mixer", "LINS1", "LIN1 Mixing Circuit"},
+ {"ROUT3 Mixer", "RINS1", "RIN1 Mixing Circuit"},
+
+ {"LOUT1 Mixer", "LINL2", "LIN2 Mixing Circuit"},
+ {"ROUT1 Mixer", "RINR2", "RIN2 Mixing Circuit"},
+ {"LOUT2 Mixer", "LINH2", "LIN2 Mixing Circuit"},
+ {"ROUT2 Mixer", "RINH2", "RIN2 Mixing Circuit"},
+ {"LOUT3 Mixer", "LINS2", "LIN2 Mixing Circuit"},
+ {"ROUT3 Mixer", "RINS2", "RIN2 Mixing Circuit"},
+
+ {"LOUT1 Mixer", "LINL3", "LIN3 Mixing Circuit"},
+ {"ROUT1 Mixer", "RINR3", "RIN3 Mixing Circuit"},
+ {"LOUT2 Mixer", "LINH3", "LIN3 Mixing Circuit"},
+ {"ROUT2 Mixer", "RINH3", "RIN3 Mixing Circuit"},
+ {"LOUT3 Mixer", "LINS3", "LIN3 Mixing Circuit"},
+ {"ROUT3 Mixer", "RINS3", "RIN3 Mixing Circuit"},
+
+ {"LOUT1 Mixer", "LINL4", "LIN4 Mixing Circuit"},
+ {"ROUT1 Mixer", "RINR4", "RIN4 Mixing Circuit"},
+ {"LOUT2 Mixer", "LINH4", "LIN4 Mixing Circuit"},
+ {"ROUT2 Mixer", "RINH4", "RIN4 Mixing Circuit"},
+ {"LOUT3 Mixer", "LINS4", "LIN4 Mixing Circuit"},
+ {"ROUT3 Mixer", "RINS4", "RIN4 Mixing Circuit"},
+};
+
+static int ak4671_add_widgets(struct snd_soc_codec *codec)
+{
+ snd_soc_dapm_new_controls(codec, ak4671_dapm_widgets,
+ ARRAY_SIZE(ak4671_dapm_widgets));
+
+ snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
+
+ snd_soc_dapm_new_widgets(codec);
+ return 0;
+}
+
+static int ak4671_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ u8 fs;
+
+ fs = snd_soc_read(codec, AK4671_PLL_MODE_SELECT0);
+ fs &= ~AK4671_FS;
+
+ switch (params_rate(params)) {
+ case 8000:
+ fs |= AK4671_FS_8KHZ;
+ break;
+ case 12000:
+ fs |= AK4671_FS_12KHZ;
+ break;
+ case 16000:
+ fs |= AK4671_FS_16KHZ;
+ break;
+ case 24000:
+ fs |= AK4671_FS_24KHZ;
+ break;
+ case 11025:
+ fs |= AK4671_FS_11_025KHZ;
+ break;
+ case 22050:
+ fs |= AK4671_FS_22_05KHZ;
+ break;
+ case 32000:
+ fs |= AK4671_FS_32KHZ;
+ break;
+ case 44100:
+ fs |= AK4671_FS_44_1KHZ;
+ break;
+ case 48000:
+ fs |= AK4671_FS_48KHZ;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ snd_soc_write(codec, AK4671_PLL_MODE_SELECT0, fs);
+
+ return 0;
+}
+
+static int ak4671_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
+ unsigned int freq, int dir)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ u8 pll;
+
+ pll = snd_soc_read(codec, AK4671_PLL_MODE_SELECT0);
+ pll &= ~AK4671_PLL;
+
+ switch (freq) {
+ case 11289600:
+ pll |= AK4671_PLL_11_2896MHZ;
+ break;
+ case 12000000:
+ pll |= AK4671_PLL_12MHZ;
+ break;
+ case 12288000:
+ pll |= AK4671_PLL_12_288MHZ;
+ break;
+ case 13000000:
+ pll |= AK4671_PLL_13MHZ;
+ break;
+ case 13500000:
+ pll |= AK4671_PLL_13_5MHZ;
+ break;
+ case 19200000:
+ pll |= AK4671_PLL_19_2MHZ;
+ break;
+ case 24000000:
+ pll |= AK4671_PLL_24MHZ;
+ break;
+ case 26000000:
+ pll |= AK4671_PLL_26MHZ;
+ break;
+ case 27000000:
+ pll |= AK4671_PLL_27MHZ;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ snd_soc_write(codec, AK4671_PLL_MODE_SELECT0, pll);
+
+ return 0;
+}
+
+static int ak4671_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ u8 mode;
+ u8 format;
+
+ /* set master/slave audio interface */
+ mode = snd_soc_read(codec, AK4671_PLL_MODE_SELECT1);
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ mode |= AK4671_M_S;
+ break;
+ case SND_SOC_DAIFMT_CBM_CFS:
+ mode &= ~(AK4671_M_S);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* interface format */
+ format = snd_soc_read(codec, AK4671_FORMAT_SELECT);
+ format &= ~AK4671_DIF;
+
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ format |= AK4671_DIF_I2S_MODE;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ format |= AK4671_DIF_MSB_MODE;
+ break;
+ case SND_SOC_DAIFMT_DSP_A:
+ format |= AK4671_DIF_DSP_MODE;
+ format |= AK4671_BCKP;
+ format |= AK4671_MSBS;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* set mode and format */
+ snd_soc_write(codec, AK4671_PLL_MODE_SELECT1, mode);
+ snd_soc_write(codec, AK4671_FORMAT_SELECT, format);
+
+ return 0;
+}
+
+static int ak4671_set_bias_level(struct snd_soc_codec *codec,
+ enum snd_soc_bias_level level)
+{
+ u8 reg;
+
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ case SND_SOC_BIAS_PREPARE:
+ case SND_SOC_BIAS_STANDBY:
+ reg = snd_soc_read(codec, AK4671_AD_DA_POWER_MANAGEMENT);
+ snd_soc_write(codec, AK4671_AD_DA_POWER_MANAGEMENT,
+ reg | AK4671_PMVCM);
+ break;
+ case SND_SOC_BIAS_OFF:
+ snd_soc_write(codec, AK4671_AD_DA_POWER_MANAGEMENT, 0x00);
+ break;
+ }
+ codec->bias_level = level;
+ return 0;
+}
+
+#define AK4671_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
+ SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
+ SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
+ SNDRV_PCM_RATE_48000)
+
+#define AK4671_FORMATS SNDRV_PCM_FMTBIT_S16_LE
+
+static struct snd_soc_dai_ops ak4671_dai_ops = {
+ .hw_params = ak4671_hw_params,
+ .set_sysclk = ak4671_set_dai_sysclk,
+ .set_fmt = ak4671_set_dai_fmt,
+};
+
+struct snd_soc_dai ak4671_dai = {
+ .name = "AK4671",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = AK4671_RATES,
+ .formats = AK4671_FORMATS,},
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = AK4671_RATES,
+ .formats = AK4671_FORMATS,},
+ .ops = &ak4671_dai_ops,
+};
+EXPORT_SYMBOL_GPL(ak4671_dai);
+
+static int ak4671_probe(struct platform_device *pdev)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec;
+ int ret = 0;
+
+ if (ak4671_codec == NULL) {
+ dev_err(&pdev->dev, "Codec device not registered\n");
+ return -ENODEV;
+ }
+
+ socdev->card->codec = ak4671_codec;
+ codec = ak4671_codec;
+
+ /* register pcms */
+ ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
+ if (ret < 0) {
+ dev_err(codec->dev, "failed to create pcms: %d\n", ret);
+ goto pcm_err;
+ }
+
+ snd_soc_add_controls(codec, ak4671_snd_controls,
+ ARRAY_SIZE(ak4671_snd_controls));
+ ak4671_add_widgets(codec);
+
+ ret = snd_soc_init_card(socdev);
+ if (ret < 0) {
+ dev_err(codec->dev, "failed to register card: %d\n", ret);
+ goto card_err;
+ }
+
+ ak4671_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+
+ return ret;
+
+card_err:
+ snd_soc_free_pcms(socdev);
+ snd_soc_dapm_free(socdev);
+pcm_err:
+ return ret;
+}
+
+static int ak4671_remove(struct platform_device *pdev)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+
+ snd_soc_free_pcms(socdev);
+ snd_soc_dapm_free(socdev);
+
+ return 0;
+}
+
+struct snd_soc_codec_device soc_codec_dev_ak4671 = {
+ .probe = ak4671_probe,
+ .remove = ak4671_remove,
+};
+EXPORT_SYMBOL_GPL(soc_codec_dev_ak4671);
+
+static int ak4671_register(struct ak4671_priv *ak4671,
+ enum snd_soc_control_type control)
+{
+ int ret;
+ struct snd_soc_codec *codec = &ak4671->codec;
+
+ if (ak4671_codec) {
+ dev_err(codec->dev, "Another AK4671 is registered\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ mutex_init(&codec->mutex);
+ INIT_LIST_HEAD(&codec->dapm_widgets);
+ INIT_LIST_HEAD(&codec->dapm_paths);
+
+ codec->private_data = ak4671;
+ codec->name = "AK4671";
+ codec->owner = THIS_MODULE;
+ codec->bias_level = SND_SOC_BIAS_OFF;
+ codec->set_bias_level = ak4671_set_bias_level;
+ codec->dai = &ak4671_dai;
+ codec->num_dai = 1;
+ codec->reg_cache_size = AK4671_CACHEREGNUM;
+ codec->reg_cache = &ak4671->reg_cache;
+
+ memcpy(codec->reg_cache, ak4671_reg, sizeof(ak4671_reg));
+
+ ret = snd_soc_codec_set_cache_io(codec, 8, 8, control);
+ if (ret < 0) {
+ dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
+ goto err;
+ }
+
+ ak4671_dai.dev = codec->dev;
+ ak4671_codec = codec;
+
+ ret = snd_soc_register_codec(codec);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to register codec: %d\n", ret);
+ goto err;
+ }
+
+ ret = snd_soc_register_dai(&ak4671_dai);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
+ goto err_codec;
+ }
+
+ return 0;
+
+err_codec:
+ snd_soc_unregister_codec(codec);
+err:
+ kfree(ak4671);
+ return ret;
+}
+
+static void ak4671_unregister(struct ak4671_priv *ak4671)
+{
+ ak4671_set_bias_level(&ak4671->codec, SND_SOC_BIAS_OFF);
+ snd_soc_unregister_dai(&ak4671_dai);
+ snd_soc_unregister_codec(&ak4671->codec);
+ kfree(ak4671);
+ ak4671_codec = NULL;
+}
+
+static int __devinit ak4671_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct ak4671_priv *ak4671;
+ struct snd_soc_codec *codec;
+
+ ak4671 = kzalloc(sizeof(struct ak4671_priv), GFP_KERNEL);
+ if (ak4671 == NULL)
+ return -ENOMEM;
+
+ codec = &ak4671->codec;
+ codec->hw_write = (hw_write_t)i2c_master_send;
+
+ i2c_set_clientdata(client, ak4671);
+ codec->control_data = client;
+
+ codec->dev = &client->dev;
+
+ return ak4671_register(ak4671, SND_SOC_I2C);
+}
+
+static __devexit int ak4671_i2c_remove(struct i2c_client *client)
+{
+ struct ak4671_priv *ak4671 = i2c_get_clientdata(client);
+
+ ak4671_unregister(ak4671);
+
+ return 0;
+}
+
+static const struct i2c_device_id ak4671_i2c_id[] = {
+ { "ak4671", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, ak4671_i2c_id);
+
+static struct i2c_driver ak4671_i2c_driver = {
+ .driver = {
+ .name = "ak4671",
+ .owner = THIS_MODULE,
+ },
+ .probe = ak4671_i2c_probe,
+ .remove = __devexit_p(ak4671_i2c_remove),
+ .id_table = ak4671_i2c_id,
+};
+
+static int __init ak4671_modinit(void)
+{
+ return i2c_add_driver(&ak4671_i2c_driver);
+}
+module_init(ak4671_modinit);
+
+static void __exit ak4671_exit(void)
+{
+ i2c_del_driver(&ak4671_i2c_driver);
+}
+module_exit(ak4671_exit);
+
+MODULE_DESCRIPTION("ASoC AK4671 codec driver");
+MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
+MODULE_LICENSE("GPL");