/* * ak4671.c -- audio driver for AK4671 * * Copyright (C) 2009 Samsung Electronics Co.Ltd * Author: Joonyoung Shim * * 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 #include #include #include #include #include #include #include #include "ak4671.h" /* codec private data */ struct ak4671_priv { enum snd_soc_control_type control_type; }; /* 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 ak4671_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_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->dapm.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, }; static struct snd_soc_dai_driver ak4671_dai = { .name = "ak4671-hifi", .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, }; static int ak4671_probe(struct snd_soc_codec *codec) { struct ak4671_priv *ak4671 = snd_soc_codec_get_drvdata(codec); int ret; ret = snd_soc_codec_set_cache_io(codec, 8, 8, ak4671->control_type); if (ret < 0) { dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); return ret; } snd_soc_add_controls(codec, ak4671_snd_controls, ARRAY_SIZE(ak4671_snd_controls)); ak4671_set_bias_level(codec, SND_SOC_BIAS_STANDBY); return ret; } static int ak4671_remove(struct snd_soc_codec *codec) { ak4671_set_bias_level(codec, SND_SOC_BIAS_OFF); return 0; } static struct snd_soc_codec_driver soc_codec_dev_ak4671 = { .probe = ak4671_probe, .remove = ak4671_remove, .set_bias_level = ak4671_set_bias_level, .reg_cache_size = AK4671_CACHEREGNUM, .reg_word_size = sizeof(u8), .reg_cache_default = ak4671_reg, .dapm_widgets = ak4671_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(ak4671_dapm_widgets), .dapm_routes = ak4671_intercon, .num_dapm_routes = ARRAY_SIZE(ak4671_intercon), }; static int __devinit ak4671_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct ak4671_priv *ak4671; int ret; ak4671 = kzalloc(sizeof(struct ak4671_priv), GFP_KERNEL); if (ak4671 == NULL) return -ENOMEM; i2c_set_clientdata(client, ak4671); ak4671->control_type = SND_SOC_I2C; ret = snd_soc_register_codec(&client->dev, &soc_codec_dev_ak4671, &ak4671_dai, 1); if (ret < 0) kfree(ak4671); return ret; } static __devexit int ak4671_i2c_remove(struct i2c_client *client) { snd_soc_unregister_codec(&client->dev); kfree(i2c_get_clientdata(client)); 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-codec", .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 "); MODULE_LICENSE("GPL");