// SPDX-License-Identifier: GPL-2.0 /* * ak4619.c -- Asahi Kasei ALSA SoC Audio driver * * Copyright (C) 2023 Renesas Electronics Corporation * Khanh Le <[email protected]> * * 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 … #define AU_IFF1 … #define AU_IFF2 … #define SYS_CLK … #define MIC_AMP1 … #define MIC_AMP2 … #define LADC1 … #define RADC1 … #define LADC2 … #define RADC2 … #define ADC_DF … #define ADC_AI … #define ADC_MHPF … #define LDAC1 … #define RDAC1 … #define LDAC2 … #define RDAC2 … #define DAC_IS … #define DAC_DEMP … #define DAC_MF … /* * Bit fields */ /* Power Management */ #define PMAD2 … #define PMAD1 … #define PMDA2 … #define PMDA1 … #define RSTN … /* Audio_I/F Format */ #define DCF_STEREO_I2S … #define DCF_STEREO_MSB … #define DCF_PCM_SF … #define DCF_PCM_LF … #define DSL_32 … #define DCF_MASK … #define DSL_MASK … #define BCKP … /* Audio_I/F Format (Extended) */ #define DIDL_24 … #define DIDL_20 … #define DIDL_16 … #define DIDL_32 … #define DODL_24 … #define DODL_20 … #define DODL_16 … #define DIDL_MASK … #define DODL_MASK … #define SLOT … /* System Clock Setting */ #define FS_MASK … /* MIC AMP Gain */ #define MGNL_SHIFT … #define MGNR_SHIFT … #define MGN_MAX … /* ADC Digital Volume */ #define VOLAD_SHIFT … #define VOLAD_MAX … /* ADC Digital Filter Setting */ #define AD1SL_SHIFT … #define AD2SL_SHIFT … /* Analog Input Select */ #define AD1LSEL_SHIFT … #define AD1RSEL_SHIFT … #define AD2LSEL_SHIFT … #define AD2RSEL_SHIFT … /* ADC Mute & HPF Control */ #define ATSPAD_SHIFT … #define AD1MUTE_SHIFT … #define AD2MUTE_SHIFT … #define AD1MUTE_MAX … #define AD2MUTE_MAX … #define AD1MUTE_EN … #define AD2MUTE_EN … #define AD1HPFN_SHIFT … #define AD1HPFN_MAX … #define AD2HPFN_SHIFT … #define AD2HPFN_MAX … /* DAC Digital Volume */ #define VOLDA_SHIFT … #define VOLDA_MAX … /* DAC Input Select Setting */ #define DAC1SEL_SHIFT … #define DAC2SEL_SHIFT … /* DAC De-Emphasis Setting */ #define DEM1_32000 … #define DEM1_44100 … #define DEM1_48000 … #define DEM1_OFF … #define DEM2_32000 … #define DEM2_44100 … #define DEM2_48000 … #define DEM2_OFF … #define DEM1_MASK … #define DEM2_MASK … #define DEM1_SHIFT … #define DEM2_SHIFT … /* DAC Mute & Filter Setting */ #define DA1MUTE_SHIFT … #define DA1MUTE_MAX … #define DA2MUTE_SHIFT … #define DA2MUTE_MAX … #define DA1MUTE_EN … #define DA2MUTE_EN … #define ATSPDA_SHIFT … #define DA1SL_SHIFT … #define DA2SL_SHIFT … /* Codec private data */ struct ak4619_priv { … }; /* * 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[] = …; 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[] = …; 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[] = …; 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[] = …; 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) { … } static int ak4619_put_deemph(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } 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[] = …; /* * DAPM */ /* Analog input mode */ static const char * const ak4619_analog_in_txt[] = …; 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 = …; static const struct snd_kcontrol_new ak4619_ad_1_right_in_mux = …; static const struct snd_kcontrol_new ak4619_ad_2_left_in_mux = …; static const struct snd_kcontrol_new ak4619_ad_2_right_in_mux = …; /* DAC source mux */ static const char * const ak4619_dac_in_txt[] = …; 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 = …; static const struct snd_kcontrol_new ak4619_dac_2_in_mux = …; static const struct snd_soc_dapm_widget ak4619_dapm_widgets[] = …; static const struct snd_soc_dapm_route ak4619_intercon[] = …; static const struct reg_default ak4619_reg_defaults[] = …; static int ak4619_set_bias_level(struct snd_soc_component *component, enum snd_soc_bias_level level) { … } static int ak4619_dai_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { … } static int ak4619_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) { … } static int ak4619_dai_set_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { … } static int ak4619_dai_mute(struct snd_soc_dai *dai, int mute, int direction) { … } 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 … #define CAPTURE_MODE … static int ak4619_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { … } static u64 ak4619_dai_formats[] = …; static const struct snd_soc_dai_ops ak4619_dai_ops = …; static const struct snd_soc_component_driver soc_component_dev_ak4619 = …; static const struct regmap_config ak4619_regmap_cfg = …; static const struct of_device_id ak4619_of_match[] = …; MODULE_DEVICE_TABLE(of, ak4619_of_match); static const struct i2c_device_id ak4619_i2c_id[] = …; MODULE_DEVICE_TABLE(i2c, ak4619_i2c_id); #define AK4619_RATES … #define AK4619_DAC_FORMATS … #define AK4619_ADC_FORMATS … static struct snd_soc_dai_driver ak4619_dai = …; static int ak4619_i2c_probe(struct i2c_client *i2c) { … } static struct i2c_driver ak4619_i2c_driver = …; module_i2c_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
Codebase Browser
linux