From: Khanh Le khanh.le.xr@renesas.com

Add support for the Asahi Kasei AK4619 audio codec.

[Kuninori cleanuped and adjusted to upstream code]

Signed-off-by: Khanh Le khanh.le.xr@renesas.com Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- sound/soc/codecs/Kconfig | 5 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/ak4619.c | 912 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 919 insertions(+) create mode 100644 sound/soc/codecs/ak4619.c

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 7b99556f24d3..910303adef70 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -45,6 +45,7 @@ config SND_SOC_ALL_CODECS imply SND_SOC_AK4535 imply SND_SOC_AK4554 imply SND_SOC_AK4613 + imply SND_SOC_AK4619 imply SND_SOC_AK4641 imply SND_SOC_AK4642 imply SND_SOC_AK4671 @@ -598,6 +599,10 @@ config SND_SOC_AK4613 tristate "AKM AK4613 CODEC" depends on I2C

+config SND_SOC_AK4619 + tristate "AKM AK4619 CODEC" + depends on I2C + config SND_SOC_AK4641 tristate depends on I2C diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index ca69f35cc0f7..2db7760d2aac 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -39,6 +39,7 @@ snd-soc-ak4458-y := ak4458.o snd-soc-ak4535-y := ak4535.o snd-soc-ak4554-y := ak4554.o snd-soc-ak4613-y := ak4613.o +snd-soc-ak4619-y := ak4619.o snd-soc-ak4641-y := ak4641.o snd-soc-ak4642-y := ak4642.o snd-soc-ak4671-y := ak4671.o @@ -439,6 +440,7 @@ obj-$(CONFIG_SND_SOC_AK4458) += snd-soc-ak4458.o obj-$(CONFIG_SND_SOC_AK4535) += snd-soc-ak4535.o obj-$(CONFIG_SND_SOC_AK4554) += snd-soc-ak4554.o obj-$(CONFIG_SND_SOC_AK4613) += snd-soc-ak4613.o +obj-$(CONFIG_SND_SOC_AK4619) += snd-soc-ak4619.o obj-$(CONFIG_SND_SOC_AK4641) += snd-soc-ak4641.o obj-$(CONFIG_SND_SOC_AK4642) += snd-soc-ak4642.o obj-$(CONFIG_SND_SOC_AK4671) += snd-soc-ak4671.o diff --git a/sound/soc/codecs/ak4619.c b/sound/soc/codecs/ak4619.c new file mode 100644 index 000000000000..cbe27abe1f50 --- /dev/null +++ b/sound/soc/codecs/ak4619.c @@ -0,0 +1,912 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * ak4619.c -- Asahi Kasei ALSA SoC Audio driver + * + * Copyright (C) 2023 Renesas Electronics Corporation + * Khanh Le khanh.le.xr@renesas.com + * + * Based on ak4613.c by Kuninori Morimoto + * Based on da7213.c by Adam Thomson + * Based on ak4641.c by Harald Welte + */ + +#include <linux/clk.h> +#include <linux/gpio/consumer.h> +#include <linux/i2c.h> +#include <linux/slab.h> +#include <linux/of_device.h> +#include <linux/module.h> +#include <linux/regmap.h> +#include <sound/soc.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/tlv.h> + +/* + * Registers + */ + +#define PWR_MGMT 0x00 /* Power Management */ +#define AU_IFF1 0x01 /* Audio I/F Format */ +#define AU_IFF2 0x02 /* Audio I/F Format (Extended) */ +#define SYS_CLK 0x03 /* System Clock Setting */ +#define MIC_AMP1 0x04 /* MIC AMP Gain 1 */ +#define MIC_AMP2 0x05 /* MIC AMP Gain 2 */ +#define LADC1 0x06 /* ADC1 Lch Digital Volume */ +#define RADC1 0x07 /* ADC1 Rch Digital Volume */ +#define LADC2 0x08 /* ADC2 Lch Digital Volume */ +#define RADC2 0x09 /* ADC2 Rch Digital Volume */ +#define ADC_DF 0x0a /* ADC Digital Filter Setting */ +#define ADC_AI 0x0b /* ADC Analog Input Setting */ +#define ADC_MHPF 0x0D /* ADC Mute & HPF Control */ +#define LDAC1 0x0E /* DAC1 Lch Digital Volume */ +#define RDAC1 0x0F /* DAC1 Rch Digital Volume */ +#define LDAC2 0x10 /* DAC2 Lch Digital Volume */ +#define RDAC2 0x11 /* DAC2 Rch Digital Volume */ +#define DAC_IS 0x12 /* DAC Input Select Setting */ +#define DAC_DEMP 0x13 /* DAC De-Emphasis Setting */ +#define DAC_MF 0x14 /* DAC Mute & Filter Setting */ + +/* + * Bit fields + */ + +/* Power Management */ +#define PMAD2 BIT(5) +#define PMAD1 BIT(4) +#define PMDA2 BIT(2) +#define PMDA1 BIT(1) +#define RSTN BIT(0) + +/* Audio_I/F Format */ +#define DCF_STEREO_I2S (0x0 << 4) +#define DCF_STEREO_MSB (0x5 << 4) +#define DCF_PCM_SF (0x6 << 4) +#define DCF_PCM_LF (0x7 << 4) +#define DSL_32 (0x3 << 2) +#define DCF_MASK (0x7 << 4) +#define DSL_MASK (0x3 << 2) +#define BCKP BIT(1) + +/* Audio_I/F Format (Extended) */ +#define DIDL_24 (0x0 << 2) +#define DIDL_20 (0x1 << 2) +#define DIDL_16 (0x2 << 2) +#define DIDL_32 (0x3 << 2) +#define DODL_24 (0x0 << 0) +#define DODL_20 (0x1 << 0) +#define DODL_16 (0x2 << 0) +#define DIDL_MASK (0x3 << 2) +#define DODL_MASK (0x3 << 0) +#define SLOT BIT(4) + +/* System Clock Setting */ +#define FS_MASK 0x7 + +/* MIC AMP Gain */ +#define MGNL_SHIFT 4 +#define MGNR_SHIFT 0 +#define MGN_MAX 0xB + +/* ADC Digital Volume */ +#define VOLAD_SHIFT 0 +#define VOLAD_MAX 0xFF + +/* ADC Digital Filter Setting */ +#define AD1SL_SHIFT 0 +#define AD2SL_SHIFT 4 + +/* Analog Input Select */ +#define AD1LSEL_SHIFT 6 +#define AD1RSEL_SHIFT 4 +#define AD2LSEL_SHIFT 2 +#define AD2RSEL_SHIFT 0 + +/* ADC Mute & HPF Control */ +#define ATSPAD_SHIFT 7 +#define AD1MUTE_SHIFT 5 +#define AD2MUTE_SHIFT 6 +#define AD1MUTE_MAX 1 +#define AD2MUTE_MAX 1 +#define AD1MUTE_EN BIT(5) +#define AD2MUTE_EN BIT(6) +#define AD1HPFN_SHIFT 1 +#define AD1HPFN_MAX 1 +#define AD2HPFN_SHIFT 2 +#define AD2HPFN_MAX 1 + +/* DAC Digital Volume */ +#define VOLDA_SHIFT 0 +#define VOLDA_MAX 0xFF + +/* DAC Input Select Setting */ +#define DAC1SEL_SHIFT 0 +#define DAC2SEL_SHIFT 2 + +/* DAC De-Emphasis Setting */ +#define DEM1_32000 (0x3 << 0) +#define DEM1_44100 (0x0 << 0) +#define DEM1_48000 (0x2 << 0) +#define DEM1_OFF (0x1 << 0) +#define DEM2_32000 (0x3 << 2) +#define DEM2_44100 (0x0 << 2) +#define DEM2_48000 (0x2 << 2) +#define DEM2_OFF (0x1 << 2) +#define DEM1_MASK (0x3 << 0) +#define DEM2_MASK (0x3 << 2) +#define DEM1_SHIFT 0 +#define DEM2_SHIFT 2 + +/* DAC Mute & Filter Setting */ +#define DA1MUTE_SHIFT 4 +#define DA1MUTE_MAX 1 +#define DA2MUTE_SHIFT 5 +#define DA2MUTE_MAX 1 +#define DA1MUTE_EN BIT(4) +#define DA2MUTE_EN BIT(5) +#define ATSPDA_SHIFT 7 +#define DA1SL_SHIFT 0 +#define DA2SL_SHIFT 2 + +/* Codec private data */ +struct ak4619_priv { + struct regmap *regmap; + struct snd_pcm_hw_constraint_list constraint; + int deemph_en; + unsigned int playback_rate; + unsigned int sysclk; +}; + +/* + * DAC Volume + * + * max : 0x00 : +12.0 dB + * ( 0.5 dB step ) + * min : 0xFE : -115.0 dB + * mute: 0xFF + */ +static const DECLARE_TLV_DB_SCALE(dac_tlv, -11550, 50, 1); + +/* + * MIC Volume + * + * max : 0x0B : +27.0 dB + * ( 3 dB step ) + * min: 0x00 : -6.0 dB + */ +static const DECLARE_TLV_DB_SCALE(mic_tlv, -600, 300, 0); + +/* + * ADC Volume + * + * max : 0x00 : +24.0 dB + * ( 0.5 dB step ) + * min : 0xFE : -103.0 dB + * mute: 0xFF + */ +static const DECLARE_TLV_DB_SCALE(adc_tlv, -10350, 50, 1); + +/* ADC & DAC Volume Level Transition Time select */ +static const char * const ak4619_vol_trans_txt[] = { + "4/fs", "16/fs" +}; + +static SOC_ENUM_SINGLE_DECL(ak4619_adc_vol_trans, ADC_MHPF, ATSPAD_SHIFT, ak4619_vol_trans_txt); +static SOC_ENUM_SINGLE_DECL(ak4619_dac_vol_trans, DAC_MF, ATSPDA_SHIFT, ak4619_vol_trans_txt); + +/* ADC Digital Filter select */ +static const char * const ak4619_adc_digi_fil_txt[] = { + "Sharp Roll-Off Filter", + "Slow Roll-Off Filter", + "Short Delay Sharp Roll-Off Filter", + "Short Delay Slow Roll-Off Filter", + "Voice Filter" +}; + +static SOC_ENUM_SINGLE_DECL(ak4619_adc_1_digi_fil, ADC_DF, AD1SL_SHIFT, ak4619_adc_digi_fil_txt); +static SOC_ENUM_SINGLE_DECL(ak4619_adc_2_digi_fil, ADC_DF, AD2SL_SHIFT, ak4619_adc_digi_fil_txt); + +/* DAC De-Emphasis Filter select */ +static const char * const ak4619_dac_de_emp_txt[] = { + "44.1kHz", "OFF", "48kHz", "32kHz" +}; + +static SOC_ENUM_SINGLE_DECL(ak4619_dac_1_de_emp, DAC_DEMP, DEM1_SHIFT, ak4619_dac_de_emp_txt); +static SOC_ENUM_SINGLE_DECL(ak4619_dac_2_de_emp, DAC_DEMP, DEM2_SHIFT, ak4619_dac_de_emp_txt); + +/* DAC Digital Filter select */ +static const char * const ak4619_dac_digi_fil_txt[] = { + "Sharp Roll-Off Filter", + "Slow Roll-Off Filter", + "Short Delay Sharp Roll-Off Filter", + "Short Delay Slow Roll-Off Filter" +}; + +static SOC_ENUM_SINGLE_DECL(ak4619_dac_1_digi_fil, DAC_MF, DA1SL_SHIFT, ak4619_dac_digi_fil_txt); +static SOC_ENUM_SINGLE_DECL(ak4619_dac_2_digi_fil, DAC_MF, DA2SL_SHIFT, ak4619_dac_digi_fil_txt); + +/* + * Control functions + */ + +static void ak4619_set_deemph(struct snd_soc_component *component) +{ + struct ak4619_priv *ak4619 = snd_soc_component_get_drvdata(component); + u8 dem = 0; + + if (!ak4619->deemph_en) + return; + + switch (ak4619->playback_rate) { + case 32000: + dem |= DEM1_32000 | DEM2_32000; + break; + case 44100: + dem |= DEM1_44100 | DEM2_44100; + break; + case 48000: + dem |= DEM1_48000 | DEM2_48000; + break; + default: + dem |= DEM1_OFF | DEM2_OFF; + break; + } + snd_soc_component_update_bits(component, DAC_DEMP, DEM1_MASK | DEM2_MASK, dem); +} + +static int ak4619_put_deemph(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); + struct ak4619_priv *ak4619 = snd_soc_component_get_drvdata(component); + int deemph_en = ucontrol->value.integer.value[0]; + int ret = 0; + + switch (deemph_en) { + case 0: + case 1: + break; + default: + return -EINVAL; + } + + if (ak4619->deemph_en != deemph_en) + ret = 1; /* The value changed */ + + ak4619->deemph_en = deemph_en; + ak4619_set_deemph(component); + + return ret; +} + +static int ak4619_get_deemph(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); + struct ak4619_priv *ak4619 = snd_soc_component_get_drvdata(component); + + ucontrol->value.integer.value[0] = ak4619->deemph_en; + + return 0; +}; + +/* + * KControls + */ +static const struct snd_kcontrol_new ak4619_snd_controls[] = { + + /* Volume controls */ + SOC_DOUBLE_R_TLV("DAC 1 Volume", LDAC1, RDAC1, VOLDA_SHIFT, VOLDA_MAX, 1, dac_tlv), + SOC_DOUBLE_R_TLV("DAC 2 Volume", LDAC2, RDAC2, VOLDA_SHIFT, VOLDA_MAX, 1, dac_tlv), + SOC_DOUBLE_R_TLV("ADC 1 Volume", LADC1, RADC1, VOLAD_SHIFT, VOLAD_MAX, 1, adc_tlv), + SOC_DOUBLE_R_TLV("ADC 2 Volume", LADC2, RADC2, VOLAD_SHIFT, VOLAD_MAX, 1, adc_tlv), + + SOC_DOUBLE_TLV("Mic 1 Volume", MIC_AMP1, MGNL_SHIFT, MGNR_SHIFT, MGN_MAX, 0, mic_tlv), + SOC_DOUBLE_TLV("Mic 2 Volume", MIC_AMP2, MGNL_SHIFT, MGNR_SHIFT, MGN_MAX, 0, mic_tlv), + + /* Volume Level Transition Time controls */ + SOC_ENUM("ADC Volume Level Transition Time", ak4619_adc_vol_trans), + SOC_ENUM("DAC Volume Level Transition Time", ak4619_dac_vol_trans), + + /* Mute controls */ + SOC_SINGLE("DAC 1 Switch", DAC_MF, DA1MUTE_SHIFT, DA1MUTE_MAX, 1), + SOC_SINGLE("DAC 2 Switch", DAC_MF, DA2MUTE_SHIFT, DA2MUTE_MAX, 1), + + SOC_SINGLE("ADC 1 Switch", ADC_MHPF, AD1MUTE_SHIFT, AD1MUTE_MAX, 1), + SOC_SINGLE("ADC 2 Switch", ADC_MHPF, AD2MUTE_SHIFT, AD2MUTE_MAX, 1), + + /* Filter controls */ + SOC_ENUM("ADC 1 Digital Filter", ak4619_adc_1_digi_fil), + SOC_ENUM("ADC 2 Digital Filter", ak4619_adc_2_digi_fil), + + SOC_SINGLE("ADC 1 HPF", ADC_MHPF, AD1HPFN_SHIFT, AD1HPFN_MAX, 1), + SOC_SINGLE("ADC 2 HPF", ADC_MHPF, AD2HPFN_SHIFT, AD2HPFN_MAX, 1), + + SOC_ENUM("DAC 1 De-Emphasis Filter", ak4619_dac_1_de_emp), + SOC_ENUM("DAC 2 De-Emphasis Filter", ak4619_dac_2_de_emp), + + SOC_ENUM("DAC 1 Digital Filter", ak4619_dac_1_digi_fil), + SOC_ENUM("DAC 2 Digital Filter", ak4619_dac_2_digi_fil), + + SOC_SINGLE_BOOL_EXT("Playback De-Emphasis Switch", 0, ak4619_get_deemph, ak4619_put_deemph), +}; + +/* + * DAPM + */ + +/* Analog input mode */ +static const char * const ak4619_analog_in_txt[] = { + "Differential", "Single-Ended1", "Single-Ended2", "Pseudo Differential" +}; + +static SOC_ENUM_SINGLE_DECL(ak4619_ad_1_left_in, ADC_AI, AD1LSEL_SHIFT, ak4619_analog_in_txt); +static SOC_ENUM_SINGLE_DECL(ak4619_ad_1_right_in, ADC_AI, AD1RSEL_SHIFT, ak4619_analog_in_txt); +static SOC_ENUM_SINGLE_DECL(ak4619_ad_2_left_in, ADC_AI, AD2LSEL_SHIFT, ak4619_analog_in_txt); +static SOC_ENUM_SINGLE_DECL(ak4619_ad_2_right_in, ADC_AI, AD2RSEL_SHIFT, ak4619_analog_in_txt); + +static const struct snd_kcontrol_new ak4619_ad_1_left_in_mux = + SOC_DAPM_ENUM("Analog Input 1 Left MUX", ak4619_ad_1_left_in); +static const struct snd_kcontrol_new ak4619_ad_1_right_in_mux = + SOC_DAPM_ENUM("Analog Input 1 Right MUX", ak4619_ad_1_right_in); +static const struct snd_kcontrol_new ak4619_ad_2_left_in_mux = + SOC_DAPM_ENUM("Analog Input 2 Left MUX", ak4619_ad_2_left_in); +static const struct snd_kcontrol_new ak4619_ad_2_right_in_mux = + SOC_DAPM_ENUM("Analog Input 2 Right MUX", ak4619_ad_2_right_in); + +/* DAC source mux */ +static const char * const ak4619_dac_in_txt[] = { + "SDIN1", "SDIN2", "SDOUT1", "SDOUT2" +}; + +static SOC_ENUM_SINGLE_DECL(ak4619_dac_1_in, DAC_IS, DAC1SEL_SHIFT, ak4619_dac_in_txt); +static SOC_ENUM_SINGLE_DECL(ak4619_dac_2_in, DAC_IS, DAC2SEL_SHIFT, ak4619_dac_in_txt); + +static const struct snd_kcontrol_new ak4619_dac_1_in_mux = + SOC_DAPM_ENUM("DAC 1 Source MUX", ak4619_dac_1_in); +static const struct snd_kcontrol_new ak4619_dac_2_in_mux = + SOC_DAPM_ENUM("DAC 2 Source MUX", ak4619_dac_2_in); + +static const struct snd_soc_dapm_widget ak4619_dapm_widgets[] = { + + /* DACs */ + SND_SOC_DAPM_DAC("DAC1", NULL, PWR_MGMT, 1, 0), + SND_SOC_DAPM_DAC("DAC2", NULL, PWR_MGMT, 2, 0), + + /* ADCs */ + SND_SOC_DAPM_ADC("ADC1", NULL, PWR_MGMT, 4, 0), + SND_SOC_DAPM_ADC("ADC2", NULL, PWR_MGMT, 5, 0), + + /* Outputs */ + SND_SOC_DAPM_OUTPUT("AOUT1L"), + SND_SOC_DAPM_OUTPUT("AOUT2L"), + + SND_SOC_DAPM_OUTPUT("AOUT1R"), + SND_SOC_DAPM_OUTPUT("AOUT2R"), + + /* Inputs */ + SND_SOC_DAPM_INPUT("AIN1L"), + SND_SOC_DAPM_INPUT("AIN2L"), + SND_SOC_DAPM_INPUT("AIN4L"), + SND_SOC_DAPM_INPUT("AIN5L"), + + SND_SOC_DAPM_INPUT("AIN1R"), + SND_SOC_DAPM_INPUT("AIN2R"), + SND_SOC_DAPM_INPUT("AIN4R"), + SND_SOC_DAPM_INPUT("AIN5R"), + + SND_SOC_DAPM_INPUT("MIC1L"), + SND_SOC_DAPM_INPUT("MIC1R"), + SND_SOC_DAPM_INPUT("MIC2L"), + SND_SOC_DAPM_INPUT("MIC2R"), + + /* DAI */ + SND_SOC_DAPM_AIF_IN("SDIN1", "Playback", 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_IN("SDIN2", "Playback", 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_OUT("SDOUT1", "Capture", 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_OUT("SDOUT2", "Capture", 0, SND_SOC_NOPM, 0, 0), + + /* MUXs for Mic PGA source selection */ + SND_SOC_DAPM_MUX("Analog Input 1 Left MUX", SND_SOC_NOPM, 0, 0, &ak4619_ad_1_left_in_mux), + SND_SOC_DAPM_MUX("Analog Input 1 Right MUX", SND_SOC_NOPM, 0, 0, &ak4619_ad_1_right_in_mux), + SND_SOC_DAPM_MUX("Analog Input 2 Left MUX", SND_SOC_NOPM, 0, 0, &ak4619_ad_2_left_in_mux), + SND_SOC_DAPM_MUX("Analog Input 2 Right MUX", SND_SOC_NOPM, 0, 0, &ak4619_ad_2_right_in_mux), + + /* MUXs for DAC source selection */ + SND_SOC_DAPM_MUX("DAC 1 Source MUX", SND_SOC_NOPM, 0, 0, &ak4619_dac_1_in_mux), + SND_SOC_DAPM_MUX("DAC 2 Source MUX", SND_SOC_NOPM, 0, 0, &ak4619_dac_2_in_mux), +}; + +static const struct snd_soc_dapm_route ak4619_intercon[] = { + /* Dest Connecting Widget Source */ + + /* Output path */ + {"AOUT1L", NULL, "DAC1"}, + {"AOUT2L", NULL, "DAC2"}, + + {"AOUT1R", NULL, "DAC1"}, + {"AOUT2R", NULL, "DAC2"}, + + {"DAC1", NULL, "DAC 1 Source MUX"}, + {"DAC2", NULL, "DAC 2 Source MUX"}, + + {"DAC 1 Source MUX", "SDIN1", "SDIN1"}, + {"DAC 1 Source MUX", "SDIN2", "SDIN2"}, + {"DAC 1 Source MUX", "SDOUT1", "SDOUT1"}, + {"DAC 1 Source MUX", "SDOUT2", "SDOUT2"}, + + {"DAC 2 Source MUX", "SDIN1", "SDIN1"}, + {"DAC 2 Source MUX", "SDIN2", "SDIN2"}, + {"DAC 2 Source MUX", "SDOUT1", "SDOUT1"}, + {"DAC 2 Source MUX", "SDOUT2", "SDOUT2"}, + + /* Input path */ + {"SDOUT1", NULL, "ADC1"}, + {"SDOUT2", NULL, "ADC2"}, + + {"ADC1", NULL, "Analog Input 1 Left MUX"}, + {"ADC1", NULL, "Analog Input 1 Right MUX"}, + + {"ADC2", NULL, "Analog Input 2 Left MUX"}, + {"ADC2", NULL, "Analog Input 2 Right MUX"}, + + {"Analog Input 1 Left MUX", "Differential", "MIC1L"}, + {"Analog Input 1 Left MUX", "Single-Ended1", "MIC1L"}, + {"Analog Input 1 Left MUX", "Single-Ended2", "MIC1L"}, + {"Analog Input 1 Left MUX", "Pseudo Differential", "MIC1L"}, + + {"Analog Input 1 Right MUX", "Differential", "MIC1R"}, + {"Analog Input 1 Right MUX", "Single-Ended1", "MIC1R"}, + {"Analog Input 1 Right MUX", "Single-Ended2", "MIC1R"}, + {"Analog Input 1 Right MUX", "Pseudo Differential", "MIC1R"}, + + {"Analog Input 2 Left MUX", "Differential", "MIC2L"}, + {"Analog Input 2 Left MUX", "Single-Ended1", "MIC2L"}, + {"Analog Input 2 Left MUX", "Single-Ended2", "MIC2L"}, + {"Analog Input 2 Left MUX", "Pseudo Differential", "MIC2L"}, + + {"Analog Input 2 Right MUX", "Differential", "MIC2R"}, + {"Analog Input 2 Right MUX", "Single-Ended1", "MIC2R"}, + {"Analog Input 2 Right MUX", "Single-Ended2", "MIC2R"}, + {"Analog Input 2 Right MUX", "Pseudo Differential", "MIC2R"}, + + {"MIC1L", NULL, "AIN1L"}, + {"MIC1L", NULL, "AIN2L"}, + + {"MIC1R", NULL, "AIN1R"}, + {"MIC1R", NULL, "AIN2R"}, + + {"MIC2L", NULL, "AIN4L"}, + {"MIC2L", NULL, "AIN5L"}, + + {"MIC2R", NULL, "AIN4R"}, + {"MIC2R", NULL, "AIN5R"}, +}; + +static const struct reg_default ak4619_reg_defaults[] = { + { PWR_MGMT, 0x00 }, + { AU_IFF1, 0x0C }, + { AU_IFF2, 0x0C }, + { SYS_CLK, 0x00 }, + { MIC_AMP1, 0x22 }, + { MIC_AMP2, 0x22 }, + { LADC1, 0x30 }, + { RADC1, 0x30 }, + { LADC2, 0x30 }, + { RADC2, 0x30 }, + { ADC_DF, 0x00 }, + { ADC_AI, 0x00 }, + { ADC_MHPF, 0x00 }, + { LDAC1, 0x18 }, + { RDAC1, 0x18 }, + { LDAC2, 0x18 }, + { RDAC2, 0x18 }, + { DAC_IS, 0x04 }, + { DAC_DEMP, 0x05 }, + { DAC_MF, 0x0A }, +}; + +static int ak4619_set_bias_level(struct snd_soc_component *component, + enum snd_soc_bias_level level) +{ + u8 pwr_ctrl = 0; + + switch (level) { + case SND_SOC_BIAS_ON: + pwr_ctrl |= RSTN; + fallthrough; + case SND_SOC_BIAS_PREPARE: + pwr_ctrl |= PMAD1 | PMAD2 | PMDA1 | PMDA2; + fallthrough; + case SND_SOC_BIAS_STANDBY: + case SND_SOC_BIAS_OFF: + default: + break; + } + + snd_soc_component_write(component, PWR_MGMT, pwr_ctrl); + + return 0; +} + +static int ak4619_dai_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct ak4619_priv *ak4619 = snd_soc_component_get_drvdata(component); + unsigned int width; + unsigned int rate; + unsigned int fs; + bool is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; + u8 dai_ctrl = 0; + u8 clk_mode = 0; + + width = params_width(params); + switch (width) { + case 16: + dai_ctrl |= is_play ? DIDL_16 : DODL_16; + break; + case 20: + dai_ctrl |= is_play ? DIDL_20 : DODL_20; + break; + case 24: + dai_ctrl |= is_play ? DIDL_24 : DODL_24; + break; + case 32: + if (is_play) + dai_ctrl |= DIDL_32; + else + return -EINVAL; + break; + default: + return -EINVAL; + } + + rate = params_rate(params); + if (rate) + fs = ak4619->sysclk / rate; + else + return -EINVAL; + + switch (rate) { + case 8000: + case 11025: + case 12000: + case 16000: + case 22050: + case 24000: + case 32000: + case 44100: + case 48000: + switch (fs) { + case 256: + clk_mode |= (0x0 << 0); + break; + case 384: + clk_mode |= (0x2 << 0); + break; + case 512: + clk_mode |= (0x3 << 0); + break; + default: + return -EINVAL; + } + break; + case 64000: + case 88200: + case 96000: + if (fs == 256) + clk_mode |= (0x1 << 0); + else + return -EINVAL; + break; + case 176400: + case 192000: + if (fs == 128) + clk_mode |= (0x4 << 0); + else + return -EINVAL; + break; + default: + return -EINVAL; + } + + snd_soc_component_update_bits(component, SYS_CLK, FS_MASK, clk_mode); + snd_soc_component_update_bits(component, AU_IFF2, + is_play ? DIDL_MASK : DODL_MASK, dai_ctrl); + + if (is_play) { + ak4619->playback_rate = rate; + ak4619_set_deemph(component); + } + + return 0; +} + +static int ak4619_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct snd_soc_component *component = dai->component; + u8 dai_fmt1 = 0; + u8 dai_fmt2 = 0; + + /* Set clock normal/inverted */ + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + case SND_SOC_DAIFMT_IB_NF: + dai_fmt1 |= BCKP; + break; + case SND_SOC_DAIFMT_NB_IF: + case SND_SOC_DAIFMT_IB_IF: + default: + return -EINVAL; + } + + /* Only Stereo modes are supported */ + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + dai_fmt1 |= DCF_STEREO_I2S; + break; + case SND_SOC_DAIFMT_LEFT_J: + dai_fmt1 |= DCF_STEREO_MSB; + break; + case SND_SOC_DAIFMT_DSP_A: /* L data MSB after FRM LRC */ + dai_fmt1 |= DCF_PCM_SF; + dai_fmt2 |= SLOT; + break; + case SND_SOC_DAIFMT_DSP_B: /* L data MSB during FRM LRC */ + dai_fmt1 |= DCF_PCM_LF; + dai_fmt2 |= SLOT; + break; + default: + return -EINVAL; + } + + /* Only slave mode is support */ + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBC_CFC: + break; + default: + return -EINVAL; + } + + /* By default only 64 BICK per LRCLK is supported */ + dai_fmt1 |= DSL_32; + + snd_soc_component_update_bits(component, AU_IFF1, DCF_MASK | + DSL_MASK | BCKP, dai_fmt1); + snd_soc_component_update_bits(component, AU_IFF2, SLOT, dai_fmt2); + + return 0; +} + +static int ak4619_dai_set_sysclk(struct snd_soc_dai *codec_dai, + int clk_id, unsigned int freq, int dir) +{ + struct snd_soc_component *component = codec_dai->component; + struct ak4619_priv *ak4619 = snd_soc_component_get_drvdata(component); + + ak4619->sysclk = freq; + + return 0; +} + +static int ak4619_dai_mute(struct snd_soc_dai *dai, int mute, int direction) +{ + struct snd_soc_component *component = dai->component; + + snd_soc_component_update_bits(component, DAC_MF, DA1MUTE_EN, mute ? DA1MUTE_EN : 0); + snd_soc_component_update_bits(component, DAC_MF, DA2MUTE_EN, mute ? DA2MUTE_EN : 0); + + return 0; +} + +static void ak4619_hw_constraints(struct ak4619_priv *ak4619, + struct snd_pcm_runtime *runtime) +{ + struct snd_pcm_hw_constraint_list *constraint = &ak4619->constraint; + int ak4619_rate_mask = 0; + unsigned int fs; + int i; + static const unsigned int ak4619_sr[] = { + 8000, + 11025, + 12000, + 16000, + 22050, + 24000, + 32000, + 44100, + 48000, + 64000, + 88200, + 96000, + 176400, + 192000, + }; + + /* + * [8kHz - 48kHz] : 256fs, 384fs or 512fs + * [64kHz - 96kHz] : 256fs + * [176.4kHz, 192kHz] : 128fs + */ + + for (i = 0; i < ARRAY_SIZE(ak4619_sr); i++) { + fs = ak4619->sysclk / ak4619_sr[i]; + + switch (fs) { + case 512: + case 384: + case 256: + ak4619_rate_mask |= (1 << i); + break; + case 128: + switch (i) { + case (ARRAY_SIZE(ak4619_sr) - 1): + case (ARRAY_SIZE(ak4619_sr) - 2): + ak4619_rate_mask |= (1 << i); + break; + default: + break; + } + break; + default: + break; + } + }; + + constraint->list = ak4619_sr; + constraint->mask = ak4619_rate_mask; + constraint->count = ARRAY_SIZE(ak4619_sr); + + snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, constraint); +}; + +#define PLAYBACK_MODE 0 +#define CAPTURE_MODE 1 + +static int ak4619_dai_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct ak4619_priv *ak4619 = snd_soc_component_get_drvdata(component); + + ak4619_hw_constraints(ak4619, substream->runtime); + + return 0; +} + +static u64 ak4619_dai_formats[] = { + /* + * Select below from Sound Card, not here + * SND_SOC_DAIFMT_CBC_CFC + * SND_SOC_DAIFMT_CBP_CFP + */ + + /* First Priority */ + SND_SOC_POSSIBLE_DAIFMT_I2S | + SND_SOC_POSSIBLE_DAIFMT_LEFT_J, + + /* Second Priority */ + SND_SOC_POSSIBLE_DAIFMT_DSP_A | + SND_SOC_POSSIBLE_DAIFMT_DSP_B, +}; + +static const struct snd_soc_dai_ops ak4619_dai_ops = { + .startup = ak4619_dai_startup, + .set_sysclk = ak4619_dai_set_sysclk, + .set_fmt = ak4619_dai_set_fmt, + .hw_params = ak4619_dai_hw_params, + .mute_stream = ak4619_dai_mute, + .auto_selectable_formats = ak4619_dai_formats, + .num_auto_selectable_formats = ARRAY_SIZE(ak4619_dai_formats), +}; + +static const struct snd_soc_component_driver soc_component_dev_ak4619 = { + .set_bias_level = ak4619_set_bias_level, + .controls = ak4619_snd_controls, + .num_controls = ARRAY_SIZE(ak4619_snd_controls), + .dapm_widgets = ak4619_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(ak4619_dapm_widgets), + .dapm_routes = ak4619_intercon, + .num_dapm_routes = ARRAY_SIZE(ak4619_intercon), + .idle_bias_on = 1, + .endianness = 1, +}; + +static const struct regmap_config ak4619_regmap_cfg = { + .reg_bits = 8, + .val_bits = 8, + .max_register = 0x14, + .reg_defaults = ak4619_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(ak4619_reg_defaults), + .cache_type = REGCACHE_MAPLE, +}; + +static const struct of_device_id ak4619_of_match[] = { + { .compatible = "asahi-kasei,ak4619", .data = &ak4619_regmap_cfg }, + {}, +}; +MODULE_DEVICE_TABLE(of, ak4619_of_match); + +static const struct i2c_device_id ak4619_i2c_id[] = { + { "ak4619", (kernel_ulong_t)&ak4619_regmap_cfg }, + { } +}; +MODULE_DEVICE_TABLE(i2c, ak4619_i2c_id); + +#define AK4619_RATES SNDRV_PCM_RATE_8000_192000 + +#define AK4619_DAC_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\ + SNDRV_PCM_FMTBIT_S20_LE |\ + SNDRV_PCM_FMTBIT_S24_LE |\ + SNDRV_PCM_FMTBIT_S32_LE) + +#define AK4619_ADC_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\ + SNDRV_PCM_FMTBIT_S20_LE |\ + SNDRV_PCM_FMTBIT_S24_LE) + +static struct snd_soc_dai_driver ak4619_dai = { + .name = "ak4619-hifi", + .playback = { + .stream_name = "Playback", + .channels_min = 1, + .channels_max = 2, + .rates = AK4619_RATES, + .formats = AK4619_DAC_FORMATS, + }, + .capture = { + .stream_name = "Capture", + .channels_min = 1, + .channels_max = 2, + .rates = AK4619_RATES, + .formats = AK4619_ADC_FORMATS, + }, + .ops = &ak4619_dai_ops, + .symmetric_rate = 1, +}; + +static int ak4619_i2c_probe(struct i2c_client *i2c) +{ + struct device *dev = &i2c->dev; + struct ak4619_priv *ak4619; + int ret; + + ak4619 = devm_kzalloc(dev, sizeof(*ak4619), GFP_KERNEL); + if (!ak4619) + return -ENOMEM; + + i2c_set_clientdata(i2c, ak4619); + + ak4619->regmap = devm_regmap_init_i2c(i2c, &ak4619_regmap_cfg); + if (IS_ERR(ak4619->regmap)) { + ret = PTR_ERR(ak4619->regmap); + dev_err(dev, "regmap_init() failed: %d\n", ret); + return ret; + } + + ret = devm_snd_soc_register_component(dev, &soc_component_dev_ak4619, + &ak4619_dai, 1); + if (ret < 0) { + dev_err(dev, "Failed to register ak4619 component: %d\n", + ret); + return ret; + } + + return 0; +} + +static struct i2c_driver ak4619_i2c_driver = { + .driver = { + .name = "ak4619-codec", + .of_match_table = ak4619_of_match, + }, + .probe = ak4619_i2c_probe, + .id_table = ak4619_i2c_id, +}; +module_i2c_driver(ak4619_i2c_driver); + +MODULE_DESCRIPTION("SoC AK4619 driver"); +MODULE_AUTHOR("Khanh Le khanh.le.xr@renesas.com"); +MODULE_LICENSE("GPL v2");