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858 lines
23 KiB
858 lines
23 KiB
// SPDX-License-Identifier: GPL-2.0 |
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// |
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// Audio driver for AK4458 DAC |
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// |
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// Copyright (C) 2016 Asahi Kasei Microdevices Corporation |
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// Copyright 2018 NXP |
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#include <linux/delay.h> |
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#include <linux/gpio/consumer.h> |
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#include <linux/i2c.h> |
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#include <linux/module.h> |
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#include <linux/of_device.h> |
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#include <linux/of_gpio.h> |
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#include <linux/pm_runtime.h> |
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#include <linux/regulator/consumer.h> |
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#include <linux/slab.h> |
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#include <sound/initval.h> |
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#include <sound/pcm_params.h> |
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#include <sound/soc.h> |
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#include <sound/soc-dapm.h> |
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#include <sound/tlv.h> |
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#include "ak4458.h" |
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#define AK4458_NUM_SUPPLIES 2 |
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static const char *ak4458_supply_names[AK4458_NUM_SUPPLIES] = { |
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"DVDD", |
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"AVDD", |
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}; |
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enum ak4458_type { |
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AK4458 = 0, |
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AK4497 = 1, |
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}; |
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struct ak4458_drvdata { |
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struct snd_soc_dai_driver *dai_drv; |
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const struct snd_soc_component_driver *comp_drv; |
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enum ak4458_type type; |
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}; |
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/* AK4458 Codec Private Data */ |
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struct ak4458_priv { |
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struct regulator_bulk_data supplies[AK4458_NUM_SUPPLIES]; |
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const struct ak4458_drvdata *drvdata; |
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struct device *dev; |
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struct regmap *regmap; |
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struct gpio_desc *reset_gpiod; |
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struct gpio_desc *mute_gpiod; |
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int digfil; /* SSLOW, SD, SLOW bits */ |
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int fs; /* sampling rate */ |
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int fmt; |
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int slots; |
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int slot_width; |
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u32 dsd_path; /* For ak4497 */ |
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}; |
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static const struct reg_default ak4458_reg_defaults[] = { |
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{ 0x00, 0x0C }, /* 0x00 AK4458_00_CONTROL1 */ |
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{ 0x01, 0x22 }, /* 0x01 AK4458_01_CONTROL2 */ |
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{ 0x02, 0x00 }, /* 0x02 AK4458_02_CONTROL3 */ |
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{ 0x03, 0xFF }, /* 0x03 AK4458_03_LCHATT */ |
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{ 0x04, 0xFF }, /* 0x04 AK4458_04_RCHATT */ |
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{ 0x05, 0x00 }, /* 0x05 AK4458_05_CONTROL4 */ |
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{ 0x06, 0x00 }, /* 0x06 AK4458_06_DSD1 */ |
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{ 0x07, 0x03 }, /* 0x07 AK4458_07_CONTROL5 */ |
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{ 0x08, 0x00 }, /* 0x08 AK4458_08_SOUND_CONTROL */ |
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{ 0x09, 0x00 }, /* 0x09 AK4458_09_DSD2 */ |
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{ 0x0A, 0x0D }, /* 0x0A AK4458_0A_CONTROL6 */ |
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{ 0x0B, 0x0C }, /* 0x0B AK4458_0B_CONTROL7 */ |
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{ 0x0C, 0x00 }, /* 0x0C AK4458_0C_CONTROL8 */ |
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{ 0x0D, 0x00 }, /* 0x0D AK4458_0D_CONTROL9 */ |
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{ 0x0E, 0x50 }, /* 0x0E AK4458_0E_CONTROL10 */ |
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{ 0x0F, 0xFF }, /* 0x0F AK4458_0F_L2CHATT */ |
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{ 0x10, 0xFF }, /* 0x10 AK4458_10_R2CHATT */ |
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{ 0x11, 0xFF }, /* 0x11 AK4458_11_L3CHATT */ |
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{ 0x12, 0xFF }, /* 0x12 AK4458_12_R3CHATT */ |
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{ 0x13, 0xFF }, /* 0x13 AK4458_13_L4CHATT */ |
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{ 0x14, 0xFF }, /* 0x14 AK4458_14_R4CHATT */ |
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}; |
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/* |
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* Volume control: |
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* from -127 to 0 dB in 0.5 dB steps (mute instead of -127.5 dB) |
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*/ |
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static DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1); |
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/* |
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* DEM1 bit DEM0 bit Mode |
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* 0 0 44.1kHz |
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* 0 1 OFF (default) |
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* 1 0 48kHz |
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* 1 1 32kHz |
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*/ |
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static const char * const ak4458_dem_select_texts[] = { |
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"44.1kHz", "OFF", "48kHz", "32kHz" |
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}; |
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/* |
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* SSLOW, SD, SLOW bits Digital Filter Setting |
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* 0, 0, 0 : Sharp Roll-Off Filter |
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* 0, 0, 1 : Slow Roll-Off Filter |
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* 0, 1, 0 : Short delay Sharp Roll-Off Filter |
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* 0, 1, 1 : Short delay Slow Roll-Off Filter |
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* 1, *, * : Super Slow Roll-Off Filter |
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*/ |
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static const char * const ak4458_digfil_select_texts[] = { |
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"Sharp Roll-Off Filter", |
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"Slow Roll-Off Filter", |
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"Short delay Sharp Roll-Off Filter", |
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"Short delay Slow Roll-Off Filter", |
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"Super Slow Roll-Off Filter" |
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}; |
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/* |
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* DZFB: Inverting Enable of DZF |
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* 0: DZF goes H at Zero Detection |
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* 1: DZF goes L at Zero Detection |
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*/ |
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static const char * const ak4458_dzfb_select_texts[] = {"H", "L"}; |
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/* |
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* SC1-0 bits: Sound Mode Setting |
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* 0 0 : Sound Mode 0 |
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* 0 1 : Sound Mode 1 |
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* 1 0 : Sound Mode 2 |
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* 1 1 : Reserved |
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*/ |
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static const char * const ak4458_sc_select_texts[] = { |
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"Sound Mode 0", "Sound Mode 1", "Sound Mode 2" |
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}; |
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/* FIR2-0 bits: FIR Filter Mode Setting */ |
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static const char * const ak4458_fir_select_texts[] = { |
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"Mode 0", "Mode 1", "Mode 2", "Mode 3", |
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"Mode 4", "Mode 5", "Mode 6", "Mode 7", |
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}; |
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/* ATS1-0 bits Attenuation Speed */ |
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static const char * const ak4458_ats_select_texts[] = { |
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"4080/fs", "2040/fs", "510/fs", "255/fs", |
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}; |
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/* DIF2 bit Audio Interface Format Setting(BICK fs) */ |
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static const char * const ak4458_dif_select_texts[] = {"32fs,48fs", "64fs",}; |
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static const struct soc_enum ak4458_dac1_dem_enum = |
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SOC_ENUM_SINGLE(AK4458_01_CONTROL2, 1, |
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ARRAY_SIZE(ak4458_dem_select_texts), |
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ak4458_dem_select_texts); |
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static const struct soc_enum ak4458_dac2_dem_enum = |
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SOC_ENUM_SINGLE(AK4458_0A_CONTROL6, 0, |
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ARRAY_SIZE(ak4458_dem_select_texts), |
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ak4458_dem_select_texts); |
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static const struct soc_enum ak4458_dac3_dem_enum = |
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SOC_ENUM_SINGLE(AK4458_0E_CONTROL10, 4, |
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ARRAY_SIZE(ak4458_dem_select_texts), |
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ak4458_dem_select_texts); |
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static const struct soc_enum ak4458_dac4_dem_enum = |
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SOC_ENUM_SINGLE(AK4458_0E_CONTROL10, 6, |
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ARRAY_SIZE(ak4458_dem_select_texts), |
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ak4458_dem_select_texts); |
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static const struct soc_enum ak4458_digfil_enum = |
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SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(ak4458_digfil_select_texts), |
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ak4458_digfil_select_texts); |
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static const struct soc_enum ak4458_dzfb_enum = |
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SOC_ENUM_SINGLE(AK4458_02_CONTROL3, 2, |
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ARRAY_SIZE(ak4458_dzfb_select_texts), |
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ak4458_dzfb_select_texts); |
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static const struct soc_enum ak4458_sm_enum = |
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SOC_ENUM_SINGLE(AK4458_08_SOUND_CONTROL, 0, |
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ARRAY_SIZE(ak4458_sc_select_texts), |
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ak4458_sc_select_texts); |
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static const struct soc_enum ak4458_fir_enum = |
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SOC_ENUM_SINGLE(AK4458_0C_CONTROL8, 0, |
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ARRAY_SIZE(ak4458_fir_select_texts), |
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ak4458_fir_select_texts); |
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static const struct soc_enum ak4458_ats_enum = |
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SOC_ENUM_SINGLE(AK4458_0B_CONTROL7, 6, |
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ARRAY_SIZE(ak4458_ats_select_texts), |
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ak4458_ats_select_texts); |
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static const struct soc_enum ak4458_dif_enum = |
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SOC_ENUM_SINGLE(AK4458_00_CONTROL1, 3, |
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ARRAY_SIZE(ak4458_dif_select_texts), |
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ak4458_dif_select_texts); |
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static int get_digfil(struct snd_kcontrol *kcontrol, |
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struct snd_ctl_elem_value *ucontrol) |
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{ |
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struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); |
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struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component); |
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ucontrol->value.enumerated.item[0] = ak4458->digfil; |
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return 0; |
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} |
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static int set_digfil(struct snd_kcontrol *kcontrol, |
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struct snd_ctl_elem_value *ucontrol) |
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{ |
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struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); |
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struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component); |
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int num; |
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num = ucontrol->value.enumerated.item[0]; |
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if (num > 4) |
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return -EINVAL; |
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ak4458->digfil = num; |
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/* write SD bit */ |
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snd_soc_component_update_bits(component, AK4458_01_CONTROL2, |
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AK4458_SD_MASK, |
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((ak4458->digfil & 0x02) << 4)); |
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/* write SLOW bit */ |
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snd_soc_component_update_bits(component, AK4458_02_CONTROL3, |
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AK4458_SLOW_MASK, |
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(ak4458->digfil & 0x01)); |
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/* write SSLOW bit */ |
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snd_soc_component_update_bits(component, AK4458_05_CONTROL4, |
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AK4458_SSLOW_MASK, |
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((ak4458->digfil & 0x04) >> 2)); |
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return 0; |
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} |
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static const struct snd_kcontrol_new ak4458_snd_controls[] = { |
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SOC_DOUBLE_R_TLV("DAC1 Playback Volume", AK4458_03_LCHATT, |
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AK4458_04_RCHATT, 0, 0xFF, 0, dac_tlv), |
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SOC_DOUBLE_R_TLV("DAC2 Playback Volume", AK4458_0F_L2CHATT, |
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AK4458_10_R2CHATT, 0, 0xFF, 0, dac_tlv), |
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SOC_DOUBLE_R_TLV("DAC3 Playback Volume", AK4458_11_L3CHATT, |
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AK4458_12_R3CHATT, 0, 0xFF, 0, dac_tlv), |
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SOC_DOUBLE_R_TLV("DAC4 Playback Volume", AK4458_13_L4CHATT, |
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AK4458_14_R4CHATT, 0, 0xFF, 0, dac_tlv), |
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SOC_ENUM("AK4458 De-emphasis Response DAC1", ak4458_dac1_dem_enum), |
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SOC_ENUM("AK4458 De-emphasis Response DAC2", ak4458_dac2_dem_enum), |
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SOC_ENUM("AK4458 De-emphasis Response DAC3", ak4458_dac3_dem_enum), |
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SOC_ENUM("AK4458 De-emphasis Response DAC4", ak4458_dac4_dem_enum), |
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SOC_ENUM_EXT("AK4458 Digital Filter Setting", ak4458_digfil_enum, |
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get_digfil, set_digfil), |
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SOC_ENUM("AK4458 Inverting Enable of DZFB", ak4458_dzfb_enum), |
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SOC_ENUM("AK4458 Sound Mode", ak4458_sm_enum), |
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SOC_ENUM("AK4458 FIR Filter Mode Setting", ak4458_fir_enum), |
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SOC_ENUM("AK4458 Attenuation transition Time Setting", |
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ak4458_ats_enum), |
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SOC_ENUM("AK4458 BICK fs Setting", ak4458_dif_enum), |
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}; |
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/* ak4458 dapm widgets */ |
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static const struct snd_soc_dapm_widget ak4458_dapm_widgets[] = { |
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SND_SOC_DAPM_DAC("AK4458 DAC1", NULL, AK4458_0A_CONTROL6, 2, 0),/*pw*/ |
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SND_SOC_DAPM_AIF_IN("AK4458 SDTI", "Playback", 0, SND_SOC_NOPM, 0, 0), |
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SND_SOC_DAPM_OUTPUT("AK4458 AOUTA"), |
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SND_SOC_DAPM_DAC("AK4458 DAC2", NULL, AK4458_0A_CONTROL6, 3, 0),/*pw*/ |
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SND_SOC_DAPM_OUTPUT("AK4458 AOUTB"), |
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SND_SOC_DAPM_DAC("AK4458 DAC3", NULL, AK4458_0B_CONTROL7, 2, 0),/*pw*/ |
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SND_SOC_DAPM_OUTPUT("AK4458 AOUTC"), |
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SND_SOC_DAPM_DAC("AK4458 DAC4", NULL, AK4458_0B_CONTROL7, 3, 0),/*pw*/ |
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SND_SOC_DAPM_OUTPUT("AK4458 AOUTD"), |
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}; |
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static const struct snd_soc_dapm_route ak4458_intercon[] = { |
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{"AK4458 DAC1", NULL, "AK4458 SDTI"}, |
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{"AK4458 AOUTA", NULL, "AK4458 DAC1"}, |
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{"AK4458 DAC2", NULL, "AK4458 SDTI"}, |
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{"AK4458 AOUTB", NULL, "AK4458 DAC2"}, |
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{"AK4458 DAC3", NULL, "AK4458 SDTI"}, |
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{"AK4458 AOUTC", NULL, "AK4458 DAC3"}, |
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{"AK4458 DAC4", NULL, "AK4458 SDTI"}, |
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{"AK4458 AOUTD", NULL, "AK4458 DAC4"}, |
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}; |
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/* ak4497 controls */ |
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static const struct snd_kcontrol_new ak4497_snd_controls[] = { |
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SOC_DOUBLE_R_TLV("DAC Playback Volume", AK4458_03_LCHATT, |
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AK4458_04_RCHATT, 0, 0xFF, 0, dac_tlv), |
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SOC_ENUM("AK4497 De-emphasis Response DAC", ak4458_dac1_dem_enum), |
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SOC_ENUM_EXT("AK4497 Digital Filter Setting", ak4458_digfil_enum, |
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get_digfil, set_digfil), |
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SOC_ENUM("AK4497 Inverting Enable of DZFB", ak4458_dzfb_enum), |
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SOC_ENUM("AK4497 Sound Mode", ak4458_sm_enum), |
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SOC_ENUM("AK4497 Attenuation transition Time Setting", |
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ak4458_ats_enum), |
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}; |
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/* ak4497 dapm widgets */ |
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static const struct snd_soc_dapm_widget ak4497_dapm_widgets[] = { |
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SND_SOC_DAPM_DAC("AK4497 DAC", NULL, AK4458_0A_CONTROL6, 2, 0), |
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SND_SOC_DAPM_AIF_IN("AK4497 SDTI", "Playback", 0, SND_SOC_NOPM, 0, 0), |
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SND_SOC_DAPM_OUTPUT("AK4497 AOUT"), |
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}; |
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/* ak4497 dapm routes */ |
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static const struct snd_soc_dapm_route ak4497_intercon[] = { |
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{"AK4497 DAC", NULL, "AK4497 SDTI"}, |
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{"AK4497 AOUT", NULL, "AK4497 DAC"}, |
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}; |
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static int ak4458_get_tdm_mode(struct ak4458_priv *ak4458) |
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{ |
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switch (ak4458->slots * ak4458->slot_width) { |
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case 128: |
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return 1; |
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case 256: |
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return 2; |
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case 512: |
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return 3; |
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default: |
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return 0; |
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} |
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} |
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static int ak4458_rstn_control(struct snd_soc_component *component, int bit) |
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{ |
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int ret; |
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if (bit) |
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ret = snd_soc_component_update_bits(component, |
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AK4458_00_CONTROL1, |
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AK4458_RSTN_MASK, |
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0x1); |
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else |
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ret = snd_soc_component_update_bits(component, |
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AK4458_00_CONTROL1, |
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AK4458_RSTN_MASK, |
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0x0); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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static int ak4458_hw_params(struct snd_pcm_substream *substream, |
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struct snd_pcm_hw_params *params, |
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struct snd_soc_dai *dai) |
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{ |
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struct snd_soc_component *component = dai->component; |
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struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component); |
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int pcm_width = max(params_physical_width(params), ak4458->slot_width); |
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u8 format, dsdsel0, dsdsel1, dchn; |
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int nfs1, dsd_bclk, ret, channels, channels_max; |
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nfs1 = params_rate(params); |
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ak4458->fs = nfs1; |
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/* calculate bit clock */ |
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channels = params_channels(params); |
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channels_max = dai->driver->playback.channels_max; |
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switch (params_format(params)) { |
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case SNDRV_PCM_FORMAT_DSD_U8: |
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case SNDRV_PCM_FORMAT_DSD_U16_LE: |
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case SNDRV_PCM_FORMAT_DSD_U16_BE: |
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case SNDRV_PCM_FORMAT_DSD_U32_LE: |
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case SNDRV_PCM_FORMAT_DSD_U32_BE: |
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dsd_bclk = nfs1 * params_physical_width(params); |
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switch (dsd_bclk) { |
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case 2822400: |
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dsdsel0 = 0; |
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dsdsel1 = 0; |
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break; |
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case 5644800: |
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dsdsel0 = 1; |
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dsdsel1 = 0; |
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break; |
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case 11289600: |
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dsdsel0 = 0; |
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dsdsel1 = 1; |
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break; |
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case 22579200: |
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if (ak4458->drvdata->type == AK4497) { |
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dsdsel0 = 1; |
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dsdsel1 = 1; |
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} else { |
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dev_err(dai->dev, "DSD512 not supported.\n"); |
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return -EINVAL; |
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} |
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break; |
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default: |
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dev_err(dai->dev, "Unsupported dsd bclk.\n"); |
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return -EINVAL; |
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} |
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snd_soc_component_update_bits(component, AK4458_06_DSD1, |
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AK4458_DSDSEL_MASK, dsdsel0); |
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snd_soc_component_update_bits(component, AK4458_09_DSD2, |
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AK4458_DSDSEL_MASK, dsdsel1); |
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break; |
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} |
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/* Master Clock Frequency Auto Setting Mode Enable */ |
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snd_soc_component_update_bits(component, AK4458_00_CONTROL1, 0x80, 0x80); |
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switch (pcm_width) { |
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case 16: |
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if (ak4458->fmt == SND_SOC_DAIFMT_I2S) |
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format = AK4458_DIF_24BIT_I2S; |
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else |
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format = AK4458_DIF_16BIT_LSB; |
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break; |
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case 32: |
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switch (ak4458->fmt) { |
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case SND_SOC_DAIFMT_I2S: |
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format = AK4458_DIF_32BIT_I2S; |
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break; |
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case SND_SOC_DAIFMT_LEFT_J: |
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format = AK4458_DIF_32BIT_MSB; |
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break; |
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case SND_SOC_DAIFMT_RIGHT_J: |
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format = AK4458_DIF_32BIT_LSB; |
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break; |
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case SND_SOC_DAIFMT_DSP_B: |
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format = AK4458_DIF_32BIT_MSB; |
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break; |
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case SND_SOC_DAIFMT_PDM: |
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format = AK4458_DIF_32BIT_MSB; |
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break; |
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default: |
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return -EINVAL; |
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} |
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break; |
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default: |
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return -EINVAL; |
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} |
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snd_soc_component_update_bits(component, AK4458_00_CONTROL1, |
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AK4458_DIF_MASK, format); |
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|
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/* |
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* Enable/disable Daisy Chain if in TDM mode and the number of played |
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* channels is bigger than the maximum supported number of channels |
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*/ |
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dchn = ak4458_get_tdm_mode(ak4458) && |
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(ak4458->fmt == SND_SOC_DAIFMT_DSP_B) && |
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(channels > channels_max) ? AK4458_DCHAIN_MASK : 0; |
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snd_soc_component_update_bits(component, AK4458_0B_CONTROL7, |
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AK4458_DCHAIN_MASK, dchn); |
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ret = ak4458_rstn_control(component, 0); |
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if (ret) |
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return ret; |
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ret = ak4458_rstn_control(component, 1); |
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if (ret) |
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return ret; |
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return 0; |
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} |
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static int ak4458_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) |
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{ |
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struct snd_soc_component *component = dai->component; |
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struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component); |
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int ret; |
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switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
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case SND_SOC_DAIFMT_CBS_CFS: /* Slave Mode */ |
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break; |
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case SND_SOC_DAIFMT_CBM_CFM: /* Master Mode is not supported */ |
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case SND_SOC_DAIFMT_CBS_CFM: |
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case SND_SOC_DAIFMT_CBM_CFS: |
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default: |
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dev_err(component->dev, "Master mode unsupported\n"); |
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return -EINVAL; |
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} |
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switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
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case SND_SOC_DAIFMT_I2S: |
|
case SND_SOC_DAIFMT_LEFT_J: |
|
case SND_SOC_DAIFMT_RIGHT_J: |
|
case SND_SOC_DAIFMT_DSP_B: |
|
case SND_SOC_DAIFMT_PDM: |
|
ak4458->fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK; |
|
break; |
|
default: |
|
dev_err(component->dev, "Audio format 0x%02X unsupported\n", |
|
fmt & SND_SOC_DAIFMT_FORMAT_MASK); |
|
return -EINVAL; |
|
} |
|
|
|
/* DSD mode */ |
|
snd_soc_component_update_bits(component, AK4458_02_CONTROL3, |
|
AK4458_DP_MASK, |
|
ak4458->fmt == SND_SOC_DAIFMT_PDM ? |
|
AK4458_DP_MASK : 0); |
|
|
|
ret = ak4458_rstn_control(component, 0); |
|
if (ret) |
|
return ret; |
|
|
|
ret = ak4458_rstn_control(component, 1); |
|
if (ret) |
|
return ret; |
|
|
|
return 0; |
|
} |
|
|
|
static const int att_speed[] = { 4080, 2040, 510, 255 }; |
|
|
|
static int ak4458_set_dai_mute(struct snd_soc_dai *dai, int mute, int direction) |
|
{ |
|
struct snd_soc_component *component = dai->component; |
|
struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component); |
|
int nfs, ndt, reg; |
|
int ats; |
|
|
|
nfs = ak4458->fs; |
|
|
|
reg = snd_soc_component_read(component, AK4458_0B_CONTROL7); |
|
ats = (reg & AK4458_ATS_MASK) >> AK4458_ATS_SHIFT; |
|
|
|
ndt = att_speed[ats] / (nfs / 1000); |
|
|
|
if (mute) { |
|
snd_soc_component_update_bits(component, AK4458_01_CONTROL2, 0x01, 1); |
|
mdelay(ndt); |
|
if (ak4458->mute_gpiod) |
|
gpiod_set_value_cansleep(ak4458->mute_gpiod, 1); |
|
} else { |
|
if (ak4458->mute_gpiod) |
|
gpiod_set_value_cansleep(ak4458->mute_gpiod, 0); |
|
snd_soc_component_update_bits(component, AK4458_01_CONTROL2, 0x01, 0); |
|
mdelay(ndt); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int ak4458_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, |
|
unsigned int rx_mask, int slots, int slot_width) |
|
{ |
|
struct snd_soc_component *component = dai->component; |
|
struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component); |
|
int mode; |
|
|
|
ak4458->slots = slots; |
|
ak4458->slot_width = slot_width; |
|
|
|
mode = ak4458_get_tdm_mode(ak4458) << AK4458_MODE_SHIFT; |
|
|
|
snd_soc_component_update_bits(component, AK4458_0A_CONTROL6, |
|
AK4458_MODE_MASK, |
|
mode); |
|
|
|
return 0; |
|
} |
|
|
|
#define AK4458_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\ |
|
SNDRV_PCM_FMTBIT_S24_LE |\ |
|
SNDRV_PCM_FMTBIT_S32_LE |\ |
|
SNDRV_PCM_FMTBIT_DSD_U8 |\ |
|
SNDRV_PCM_FMTBIT_DSD_U16_LE |\ |
|
SNDRV_PCM_FMTBIT_DSD_U32_LE) |
|
|
|
static const unsigned int ak4458_rates[] = { |
|
8000, 11025, 16000, 22050, |
|
32000, 44100, 48000, 88200, |
|
96000, 176400, 192000, 352800, |
|
384000, 705600, 768000, 1411200, |
|
2822400, |
|
}; |
|
|
|
static const struct snd_pcm_hw_constraint_list ak4458_rate_constraints = { |
|
.count = ARRAY_SIZE(ak4458_rates), |
|
.list = ak4458_rates, |
|
}; |
|
|
|
static int ak4458_startup(struct snd_pcm_substream *substream, |
|
struct snd_soc_dai *dai) |
|
{ |
|
int ret; |
|
|
|
ret = snd_pcm_hw_constraint_list(substream->runtime, 0, |
|
SNDRV_PCM_HW_PARAM_RATE, |
|
&ak4458_rate_constraints); |
|
|
|
return ret; |
|
} |
|
|
|
static const struct snd_soc_dai_ops ak4458_dai_ops = { |
|
.startup = ak4458_startup, |
|
.hw_params = ak4458_hw_params, |
|
.set_fmt = ak4458_set_dai_fmt, |
|
.mute_stream = ak4458_set_dai_mute, |
|
.set_tdm_slot = ak4458_set_tdm_slot, |
|
.no_capture_mute = 1, |
|
}; |
|
|
|
static struct snd_soc_dai_driver ak4458_dai = { |
|
.name = "ak4458-aif", |
|
.playback = { |
|
.stream_name = "Playback", |
|
.channels_min = 1, |
|
.channels_max = 8, |
|
.rates = SNDRV_PCM_RATE_KNOT, |
|
.formats = AK4458_FORMATS, |
|
}, |
|
.ops = &ak4458_dai_ops, |
|
}; |
|
|
|
static struct snd_soc_dai_driver ak4497_dai = { |
|
.name = "ak4497-aif", |
|
.playback = { |
|
.stream_name = "Playback", |
|
.channels_min = 1, |
|
.channels_max = 2, |
|
.rates = SNDRV_PCM_RATE_KNOT, |
|
.formats = AK4458_FORMATS, |
|
}, |
|
.ops = &ak4458_dai_ops, |
|
}; |
|
|
|
static void ak4458_reset(struct ak4458_priv *ak4458, bool active) |
|
{ |
|
if (ak4458->reset_gpiod) { |
|
gpiod_set_value_cansleep(ak4458->reset_gpiod, active); |
|
usleep_range(1000, 2000); |
|
} |
|
} |
|
|
|
static int ak4458_init(struct snd_soc_component *component) |
|
{ |
|
struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component); |
|
int ret; |
|
|
|
/* External Mute ON */ |
|
if (ak4458->mute_gpiod) |
|
gpiod_set_value_cansleep(ak4458->mute_gpiod, 1); |
|
|
|
ak4458_reset(ak4458, false); |
|
|
|
ret = snd_soc_component_update_bits(component, AK4458_00_CONTROL1, |
|
0x80, 0x80); /* ACKS bit = 1; 10000000 */ |
|
if (ret < 0) |
|
return ret; |
|
|
|
if (ak4458->drvdata->type == AK4497) { |
|
ret = snd_soc_component_update_bits(component, AK4458_09_DSD2, |
|
0x4, (ak4458->dsd_path << 2)); |
|
if (ret < 0) |
|
return ret; |
|
} |
|
|
|
return ak4458_rstn_control(component, 1); |
|
} |
|
|
|
static int ak4458_probe(struct snd_soc_component *component) |
|
{ |
|
struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component); |
|
|
|
ak4458->fs = 48000; |
|
|
|
return ak4458_init(component); |
|
} |
|
|
|
static void ak4458_remove(struct snd_soc_component *component) |
|
{ |
|
struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component); |
|
|
|
ak4458_reset(ak4458, true); |
|
} |
|
|
|
#ifdef CONFIG_PM |
|
static int __maybe_unused ak4458_runtime_suspend(struct device *dev) |
|
{ |
|
struct ak4458_priv *ak4458 = dev_get_drvdata(dev); |
|
|
|
regcache_cache_only(ak4458->regmap, true); |
|
|
|
ak4458_reset(ak4458, true); |
|
|
|
if (ak4458->mute_gpiod) |
|
gpiod_set_value_cansleep(ak4458->mute_gpiod, 0); |
|
|
|
regulator_bulk_disable(ARRAY_SIZE(ak4458->supplies), |
|
ak4458->supplies); |
|
return 0; |
|
} |
|
|
|
static int __maybe_unused ak4458_runtime_resume(struct device *dev) |
|
{ |
|
struct ak4458_priv *ak4458 = dev_get_drvdata(dev); |
|
int ret; |
|
|
|
ret = regulator_bulk_enable(ARRAY_SIZE(ak4458->supplies), |
|
ak4458->supplies); |
|
if (ret != 0) { |
|
dev_err(ak4458->dev, "Failed to enable supplies: %d\n", ret); |
|
return ret; |
|
} |
|
|
|
if (ak4458->mute_gpiod) |
|
gpiod_set_value_cansleep(ak4458->mute_gpiod, 1); |
|
|
|
ak4458_reset(ak4458, true); |
|
ak4458_reset(ak4458, false); |
|
|
|
regcache_cache_only(ak4458->regmap, false); |
|
regcache_mark_dirty(ak4458->regmap); |
|
|
|
return regcache_sync(ak4458->regmap); |
|
} |
|
#endif /* CONFIG_PM */ |
|
|
|
static const struct snd_soc_component_driver soc_codec_dev_ak4458 = { |
|
.probe = ak4458_probe, |
|
.remove = ak4458_remove, |
|
.controls = ak4458_snd_controls, |
|
.num_controls = ARRAY_SIZE(ak4458_snd_controls), |
|
.dapm_widgets = ak4458_dapm_widgets, |
|
.num_dapm_widgets = ARRAY_SIZE(ak4458_dapm_widgets), |
|
.dapm_routes = ak4458_intercon, |
|
.num_dapm_routes = ARRAY_SIZE(ak4458_intercon), |
|
.idle_bias_on = 1, |
|
.use_pmdown_time = 1, |
|
.endianness = 1, |
|
.non_legacy_dai_naming = 1, |
|
}; |
|
|
|
static const struct snd_soc_component_driver soc_codec_dev_ak4497 = { |
|
.probe = ak4458_probe, |
|
.remove = ak4458_remove, |
|
.controls = ak4497_snd_controls, |
|
.num_controls = ARRAY_SIZE(ak4497_snd_controls), |
|
.dapm_widgets = ak4497_dapm_widgets, |
|
.num_dapm_widgets = ARRAY_SIZE(ak4497_dapm_widgets), |
|
.dapm_routes = ak4497_intercon, |
|
.num_dapm_routes = ARRAY_SIZE(ak4497_intercon), |
|
.idle_bias_on = 1, |
|
.use_pmdown_time = 1, |
|
.endianness = 1, |
|
.non_legacy_dai_naming = 1, |
|
}; |
|
|
|
static const struct regmap_config ak4458_regmap = { |
|
.reg_bits = 8, |
|
.val_bits = 8, |
|
|
|
.max_register = AK4458_14_R4CHATT, |
|
.reg_defaults = ak4458_reg_defaults, |
|
.num_reg_defaults = ARRAY_SIZE(ak4458_reg_defaults), |
|
.cache_type = REGCACHE_RBTREE, |
|
}; |
|
|
|
static const struct ak4458_drvdata ak4458_drvdata = { |
|
.dai_drv = &ak4458_dai, |
|
.comp_drv = &soc_codec_dev_ak4458, |
|
.type = AK4458, |
|
}; |
|
|
|
static const struct ak4458_drvdata ak4497_drvdata = { |
|
.dai_drv = &ak4497_dai, |
|
.comp_drv = &soc_codec_dev_ak4497, |
|
.type = AK4497, |
|
}; |
|
|
|
static const struct dev_pm_ops ak4458_pm = { |
|
SET_RUNTIME_PM_OPS(ak4458_runtime_suspend, ak4458_runtime_resume, NULL) |
|
SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, |
|
pm_runtime_force_resume) |
|
}; |
|
|
|
static int ak4458_i2c_probe(struct i2c_client *i2c) |
|
{ |
|
struct ak4458_priv *ak4458; |
|
int ret, i; |
|
|
|
ak4458 = devm_kzalloc(&i2c->dev, sizeof(*ak4458), GFP_KERNEL); |
|
if (!ak4458) |
|
return -ENOMEM; |
|
|
|
ak4458->regmap = devm_regmap_init_i2c(i2c, &ak4458_regmap); |
|
if (IS_ERR(ak4458->regmap)) |
|
return PTR_ERR(ak4458->regmap); |
|
|
|
i2c_set_clientdata(i2c, ak4458); |
|
ak4458->dev = &i2c->dev; |
|
|
|
ak4458->drvdata = of_device_get_match_data(&i2c->dev); |
|
|
|
ak4458->reset_gpiod = devm_gpiod_get_optional(ak4458->dev, "reset", |
|
GPIOD_OUT_LOW); |
|
if (IS_ERR(ak4458->reset_gpiod)) |
|
return PTR_ERR(ak4458->reset_gpiod); |
|
|
|
ak4458->mute_gpiod = devm_gpiod_get_optional(ak4458->dev, "mute", |
|
GPIOD_OUT_LOW); |
|
if (IS_ERR(ak4458->mute_gpiod)) |
|
return PTR_ERR(ak4458->mute_gpiod); |
|
|
|
/* Optional property for ak4497 */ |
|
of_property_read_u32(i2c->dev.of_node, "dsd-path", &ak4458->dsd_path); |
|
|
|
for (i = 0; i < ARRAY_SIZE(ak4458->supplies); i++) |
|
ak4458->supplies[i].supply = ak4458_supply_names[i]; |
|
|
|
ret = devm_regulator_bulk_get(ak4458->dev, ARRAY_SIZE(ak4458->supplies), |
|
ak4458->supplies); |
|
if (ret != 0) { |
|
dev_err(ak4458->dev, "Failed to request supplies: %d\n", ret); |
|
return ret; |
|
} |
|
|
|
ret = devm_snd_soc_register_component(ak4458->dev, |
|
ak4458->drvdata->comp_drv, |
|
ak4458->drvdata->dai_drv, 1); |
|
if (ret < 0) { |
|
dev_err(ak4458->dev, "Failed to register CODEC: %d\n", ret); |
|
return ret; |
|
} |
|
|
|
pm_runtime_enable(&i2c->dev); |
|
regcache_cache_only(ak4458->regmap, true); |
|
|
|
return 0; |
|
} |
|
|
|
static int ak4458_i2c_remove(struct i2c_client *i2c) |
|
{ |
|
pm_runtime_disable(&i2c->dev); |
|
|
|
return 0; |
|
} |
|
|
|
static const struct of_device_id ak4458_of_match[] = { |
|
{ .compatible = "asahi-kasei,ak4458", .data = &ak4458_drvdata}, |
|
{ .compatible = "asahi-kasei,ak4497", .data = &ak4497_drvdata}, |
|
{ }, |
|
}; |
|
MODULE_DEVICE_TABLE(of, ak4458_of_match); |
|
|
|
static struct i2c_driver ak4458_i2c_driver = { |
|
.driver = { |
|
.name = "ak4458", |
|
.pm = &ak4458_pm, |
|
.of_match_table = ak4458_of_match, |
|
}, |
|
.probe_new = ak4458_i2c_probe, |
|
.remove = ak4458_i2c_remove, |
|
}; |
|
|
|
module_i2c_driver(ak4458_i2c_driver); |
|
|
|
MODULE_AUTHOR("Junichi Wakasugi <[email protected]>"); |
|
MODULE_AUTHOR("Mihai Serban <[email protected]>"); |
|
MODULE_DESCRIPTION("ASoC AK4458 DAC driver"); |
|
MODULE_LICENSE("GPL v2");
|
|
|