// SPDX-License-Identifier: GPL-2.0 // // Audio driver for AK4458 DAC // // Copyright (C) 2016 Asahi Kasei Microdevices Corporation // Copyright 2018 NXP #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/module.h> #include <linux/of.h> #include <linux/pm_runtime.h> #include <linux/regulator/consumer.h> #include <linux/reset.h> #include <linux/slab.h> #include <sound/initval.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/soc-dapm.h> #include <sound/tlv.h> #include "ak4458.h" #define AK4458_NUM_SUPPLIES … static const char *ak4458_supply_names[AK4458_NUM_SUPPLIES] = …; enum ak4458_type { … }; struct ak4458_drvdata { … }; /* AK4458 Codec Private Data */ struct ak4458_priv { … }; static const struct reg_default ak4458_reg_defaults[] = …; /* * Volume control: * from -127 to 0 dB in 0.5 dB steps (mute instead of -127.5 dB) */ static DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1); /* * DEM1 bit DEM0 bit Mode * 0 0 44.1kHz * 0 1 OFF (default) * 1 0 48kHz * 1 1 32kHz */ static const char * const ak4458_dem_select_texts[] = …; /* * SSLOW, SD, SLOW bits Digital Filter Setting * 0, 0, 0 : Sharp Roll-Off Filter * 0, 0, 1 : Slow Roll-Off Filter * 0, 1, 0 : Short delay Sharp Roll-Off Filter * 0, 1, 1 : Short delay Slow Roll-Off Filter * 1, *, * : Super Slow Roll-Off Filter */ static const char * const ak4458_digfil_select_texts[] = …; /* * DZFB: Inverting Enable of DZF * 0: DZF goes H at Zero Detection * 1: DZF goes L at Zero Detection */ static const char * const ak4458_dzfb_select_texts[] = …; /* * SC1-0 bits: Sound Mode Setting * 0 0 : Sound Mode 0 * 0 1 : Sound Mode 1 * 1 0 : Sound Mode 2 * 1 1 : Reserved */ static const char * const ak4458_sc_select_texts[] = …; /* FIR2-0 bits: FIR Filter Mode Setting */ static const char * const ak4458_fir_select_texts[] = …; /* ATS1-0 bits Attenuation Speed */ static const char * const ak4458_ats_select_texts[] = …; /* DIF2 bit Audio Interface Format Setting(BICK fs) */ static const char * const ak4458_dif_select_texts[] = …; static const struct soc_enum ak4458_dac1_dem_enum = …; static const struct soc_enum ak4458_dac2_dem_enum = …; static const struct soc_enum ak4458_dac3_dem_enum = …; static const struct soc_enum ak4458_dac4_dem_enum = …; static const struct soc_enum ak4458_digfil_enum = …; static const struct soc_enum ak4458_dzfb_enum = …; static const struct soc_enum ak4458_sm_enum = …; static const struct soc_enum ak4458_fir_enum = …; static const struct soc_enum ak4458_ats_enum = …; static const struct soc_enum ak4458_dif_enum = …; static int get_digfil(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int set_digfil(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static const struct snd_kcontrol_new ak4458_snd_controls[] = …; /* ak4458 dapm widgets */ static const struct snd_soc_dapm_widget ak4458_dapm_widgets[] = …; static const struct snd_soc_dapm_route ak4458_intercon[] = …; /* ak4497 controls */ static const struct snd_kcontrol_new ak4497_snd_controls[] = …; /* ak4497 dapm widgets */ static const struct snd_soc_dapm_widget ak4497_dapm_widgets[] = …; /* ak4497 dapm routes */ static const struct snd_soc_dapm_route ak4497_intercon[] = …; static int ak4458_get_tdm_mode(struct ak4458_priv *ak4458) { … } static int ak4458_rstn_control(struct snd_soc_component *component, int bit) { … } static int ak4458_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { … } static int ak4458_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) { … } static const int att_speed[] = …; static int ak4458_set_dai_mute(struct snd_soc_dai *dai, int mute, int direction) { … } static int ak4458_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) { … } #define AK4458_FORMATS … static const unsigned int ak4458_rates[] = …; static const struct snd_pcm_hw_constraint_list ak4458_rate_constraints = …; static int ak4458_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { … } static const struct snd_soc_dai_ops ak4458_dai_ops = …; static struct snd_soc_dai_driver ak4458_dai = …; static struct snd_soc_dai_driver ak4497_dai = …; static void ak4458_reset(struct ak4458_priv *ak4458, bool active) { … } #ifdef CONFIG_PM static int __maybe_unused ak4458_runtime_suspend(struct device *dev) { … } static int __maybe_unused ak4458_runtime_resume(struct device *dev) { … } #endif /* CONFIG_PM */ static const struct snd_soc_component_driver soc_codec_dev_ak4458 = …; static const struct snd_soc_component_driver soc_codec_dev_ak4497 = …; static const struct regmap_config ak4458_regmap = …; static const struct ak4458_drvdata ak4458_drvdata = …; static const struct ak4458_drvdata ak4497_drvdata = …; static const struct dev_pm_ops ak4458_pm = …; static int ak4458_i2c_probe(struct i2c_client *i2c) { … } static void ak4458_i2c_remove(struct i2c_client *i2c) { … } static const struct of_device_id ak4458_of_match[] = …; MODULE_DEVICE_TABLE(of, ak4458_of_match); static struct i2c_driver ak4458_i2c_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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