The driver is for codec NAU88L21 of Nuvoton Technology Corporation. The NAU88L21 is an ultra-low power high performance audio codec that supports both analog and digital audio functions.

Signed-off-by: Seven Lee wtli@nuvoton.com --- .../devicetree/bindings/sound/nau8821.txt | 55 + sound/soc/codecs/Kconfig | 5 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/nau8821.c | 1712 +++++++++++++++++ sound/soc/codecs/nau8821.h | 533 +++++ 5 files changed, 2307 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/nau8821.txt create mode 100644 sound/soc/codecs/nau8821.c create mode 100644 sound/soc/codecs/nau8821.h

diff --git a/Documentation/devicetree/bindings/sound/nau8821.txt b/Documentation/devicetree/bindings/sound/nau8821.txt new file mode 100644 index 000000000000..6c3baf7a5f21 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/nau8821.txt @@ -0,0 +1,55 @@ +Nuvoton NAU88L21 audio codec + +This device supports I2C only. + +Required properties: + - compatible : Must be "nuvoton,nau8821" + + - reg : the I2C address of the device. This is either 0x1B (CSB=0) or 0x54 (CSB=1). + +Optional properties: + - nuvoton,jkdet-enable: Enable jack detection via JKDET pin. + - nuvoton,jkdet-pull-enable: Enable JKDET pin pull. If set - pin pull enabled, + otherwise pin in high impedance state. + - nuvoton,jkdet-pull-up: Pull-up JKDET pin. If set then JKDET pin is pull up, otherwise pull down. + - nuvoton,jkdet-polarity: JKDET pin polarity. 0 - active high, 1 - active low. + + - nuvoton,vref-impedance: VREF Impedance selection + 0 - Open + 1 - 25 kOhm + 2 - 125 kOhm + 3 - 2.5 kOhm + + - nuvoton,micbias-voltage: Micbias voltage level. + 0 - VDDA + 1 - VDDA + 2 - VDDA * 1.1 + 3 - VDDA * 1.2 + 4 - VDDA * 1.3 + 5 - VDDA * 1.4 + 6 - VDDA * 1.53 + 7 - VDDA * 1.53 + + - nuvoton,jack-insert-debounce: number from 0 to 7 that sets debounce time to 2^(n+2) ms + - nuvoton,jack-eject-debounce: number from 0 to 7 that sets debounce time to 2^(n+2) ms + + - nuvoton,dmic-clk-threshold: the ADC threshold of DMIC clock. + + +Example: + + headset: nau8821@1b { + compatible = "nuvoton,nau8821"; + reg = <0x1b>; + interrupt-parent = <&gpio>; + interrupts = <23 IRQ_TYPE_LEVEL_LOW>; + nuvoton,jkdet-enable; + nuvoton,jkdet-pull-enable; + nuvoton,jkdet-pull-up; + nuvoton,jkdet-polarity = <GPIO_ACTIVE_LOW>; + nuvoton,vref-impedance = <2>; + nuvoton,micbias-voltage = <6>; + nuvoton,jack-insert-debounce = <7>; + nuvoton,jack-eject-debounce = <7>; + nuvoton,dmic-clk-threshold = 3072000; + }; diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index deda5ee02ebb..75506bd8fc0d 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -138,6 +138,7 @@ config SND_SOC_ALL_CODECS imply SND_SOC_NAU8315 imply SND_SOC_NAU8540 imply SND_SOC_NAU8810 + imply SND_SOC_NAU8821 imply SND_SOC_NAU8822 imply SND_SOC_NAU8824 imply SND_SOC_NAU8825 @@ -1922,6 +1923,10 @@ config SND_SOC_NAU8810 tristate "Nuvoton Technology Corporation NAU88C10 CODEC" depends on I2C

+config SND_SOC_NAU8821 + tristate "Nuvoton Technology Corporation NAU88L21 CODEC" + depends on I2C + config SND_SOC_NAU8822 tristate "Nuvoton Technology Corporation NAU88C22 CODEC" depends on I2C diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index 4cf939d0d3fb..90eedab4ee7a 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -143,6 +143,7 @@ snd-soc-mt6660-objs := mt6660.o snd-soc-nau8315-objs := nau8315.o snd-soc-nau8540-objs := nau8540.o snd-soc-nau8810-objs := nau8810.o +snd-soc-nau8821-objs := nau8821.o snd-soc-nau8822-objs := nau8822.o snd-soc-nau8824-objs := nau8824.o snd-soc-nau8825-objs := nau8825.o @@ -473,6 +474,7 @@ obj-$(CONFIG_SND_SOC_MT6660) += snd-soc-mt6660.o obj-$(CONFIG_SND_SOC_NAU8315) += snd-soc-nau8315.o obj-$(CONFIG_SND_SOC_NAU8540) += snd-soc-nau8540.o obj-$(CONFIG_SND_SOC_NAU8810) += snd-soc-nau8810.o +obj-$(CONFIG_SND_SOC_NAU8821) += snd-soc-nau8821.o obj-$(CONFIG_SND_SOC_NAU8822) += snd-soc-nau8822.o obj-$(CONFIG_SND_SOC_NAU8824) += snd-soc-nau8824.o obj-$(CONFIG_SND_SOC_NAU8825) += snd-soc-nau8825.o diff --git a/sound/soc/codecs/nau8821.c b/sound/soc/codecs/nau8821.c new file mode 100644 index 000000000000..4ea56d2f9509 --- /dev/null +++ b/sound/soc/codecs/nau8821.c @@ -0,0 +1,1712 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// nau8821.c -- Nuvoton NAU88L21 audio codec driver +// +// Copyright 2021 Nuvoton Technology Corp. +// Author: John Hsu kchsu0@nuvoton.com +// Co-author: Seven Lee wtli@nuvoton.com +// + +#include <linux/acpi.h> +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/math64.h> +#include <linux/regmap.h> +#include <linux/slab.h> +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/jack.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/tlv.h> +#include "nau8821.h" + +#define NAU_FREF_MAX 13500000 +#define NAU_FVCO_MAX 100000000 +#define NAU_FVCO_MIN 90000000 + +/* the maximum frequency of CLK_ADC and CLK_DAC */ +#define CLK_DA_AD_MAX 6144000 + +static int nau8821_configure_sysclk(struct nau8821 *nau8821, + int clk_id, unsigned int freq); + +struct nau8821_fll { + int mclk_src; + int ratio; + int fll_frac; + int fll_int; + int clk_ref_div; +}; + +struct nau8821_fll_attr { + unsigned int param; + unsigned int val; +}; + +/* scaling for mclk from sysclk_src output */ +static const struct nau8821_fll_attr mclk_src_scaling[] = { + { 1, 0x0 }, + { 2, 0x2 }, + { 4, 0x3 }, + { 8, 0x4 }, + { 16, 0x5 }, + { 32, 0x6 }, + { 3, 0x7 }, + { 6, 0xa }, + { 12, 0xb }, + { 24, 0xc }, + { 48, 0xd }, + { 96, 0xe }, + { 5, 0xf }, +}; + +/* ratio for input clk freq */ +static const struct nau8821_fll_attr fll_ratio[] = { + { 512000, 0x01 }, + { 256000, 0x02 }, + { 128000, 0x04 }, + { 64000, 0x08 }, + { 32000, 0x10 }, + { 8000, 0x20 }, + { 4000, 0x40 }, +}; + +static const struct nau8821_fll_attr fll_pre_scalar[] = { + { 0, 0x0 }, + { 1, 0x1 }, + { 2, 0x2 }, + { 3, 0x3 }, +}; + +/* over sampling rate */ +struct nau8821_osr_attr { + unsigned int osr; + unsigned int clk_src; +}; + +static const struct nau8821_osr_attr osr_dac_sel[] = { + { 64, 2 }, /* OSR 64, SRC 1/4 */ + { 256, 0 }, /* OSR 256, SRC 1 */ + { 128, 1 }, /* OSR 128, SRC 1/2 */ + { 0, 0 }, + { 32, 3 }, /* OSR 32, SRC 1/8 */ +}; + +static const struct nau8821_osr_attr osr_adc_sel[] = { + { 32, 3 }, /* OSR 32, SRC 1/8 */ + { 64, 2 }, /* OSR 64, SRC 1/4 */ + { 128, 1 }, /* OSR 128, SRC 1/2 */ + { 256, 0 }, /* OSR 256, SRC 1 */ +}; + +struct nau8821_dmic_speed { + unsigned int param; + unsigned int val; +}; + +static const struct nau8821_dmic_speed dmic_speed_sel[] = { + { 0, 0x0 }, /*SPEED 1, SRC 1 */ + { 1, 0x1 }, /*SPEED 2, SRC 1/2 */ + { 2, 0x2 }, /*SPEED 4, SRC 1/4 */ + { 3, 0x3 }, /*SPEED 8, SRC 1/8 */ +}; + +static const struct reg_default nau8821_reg_defaults[] = { + { NAU8821_R01_ENA_CTRL, 0x00ff }, + { NAU8821_R03_CLK_DIVIDER, 0x0050 }, + { NAU8821_R04_FLL1, 0x0 }, + { NAU8821_R05_FLL2, 0x00bc }, + { NAU8821_R06_FLL3, 0x0008 }, + { NAU8821_R07_FLL4, 0x0010 }, + { NAU8821_R08_FLL5, 0x4000 }, + { NAU8821_R09_FLL6, 0x6900 }, + { NAU8821_R0A_FLL7, 0x0031 }, + { NAU8821_R0B_FLL8, 0x26e9 }, + { NAU8821_R0D_JACK_DET_CTRL, 0x0 }, + { NAU8821_R0F_INTERRUPT_MASK, 0x0 }, + { NAU8821_R12_INTERRUPT_DIS_CTRL, 0xffff }, + { NAU8821_R13_DMIC_CTRL, 0x0 }, + { NAU8821_R1A_GPIO12_CTRL, 0x0 }, + { NAU8821_R1B_TDM_CTRL, 0x0 }, + { NAU8821_R1C_I2S_PCM_CTRL1, 0x000a }, + { NAU8821_R1D_I2S_PCM_CTRL2, 0x8010 }, + { NAU8821_R1E_LEFT_TIME_SLOT, 0x0 }, + { NAU8821_R1F_RIGHT_TIME_SLOT, 0x0 }, + { NAU8821_R21_BIQ0_COF1, 0x0 }, + { NAU8821_R22_BIQ0_COF2, 0x0 }, + { NAU8821_R23_BIQ0_COF3, 0x0 }, + { NAU8821_R24_BIQ0_COF4, 0x0 }, + { NAU8821_R25_BIQ0_COF5, 0x0 }, + { NAU8821_R26_BIQ0_COF6, 0x0 }, + { NAU8821_R27_BIQ0_COF7, 0x0 }, + { NAU8821_R28_BIQ0_COF8, 0x0 }, + { NAU8821_R29_BIQ0_COF9, 0x0 }, + { NAU8821_R2A_BIQ0_COF10, 0x0 }, + { NAU8821_R2B_ADC_RATE, 0x0002 }, + { NAU8821_R2C_DAC_CTRL1, 0x0082 }, + { NAU8821_R2D_DAC_CTRL2, 0x0 }, + { NAU8821_R2F_DAC_DGAIN_CTRL, 0x0 }, + { NAU8821_R30_ADC_DGAIN_CTRL, 0x0 }, + { NAU8821_R31_MUTE_CTRL, 0x0 }, + { NAU8821_R32_HSVOL_CTRL, 0x0 }, + { NAU8821_R34_DACR_CTRL, 0xcfcf }, + { NAU8821_R35_ADC_DGAIN_CTRL1, 0xcfcf }, + { NAU8821_R36_ADC_DRC_KNEE_IP12, 0x1486 }, + { NAU8821_R37_ADC_DRC_KNEE_IP34, 0x0f12 }, + { NAU8821_R38_ADC_DRC_SLOPES, 0x25ff }, + { NAU8821_R39_ADC_DRC_ATKDCY, 0x3457 }, + { NAU8821_R3A_DAC_DRC_KNEE_IP12, 0x1486 }, + { NAU8821_R3B_DAC_DRC_KNEE_IP34, 0x0f12 }, + { NAU8821_R3C_DAC_DRC_SLOPES, 0x25f9 }, + { NAU8821_R3D_DAC_DRC_ATKDCY, 0x3457 }, + { NAU8821_R41_BIQ1_COF1, 0x0 }, + { NAU8821_R42_BIQ1_COF2, 0x0 }, + { NAU8821_R43_BIQ1_COF3, 0x0 }, + { NAU8821_R44_BIQ1_COF4, 0x0 }, + { NAU8821_R45_BIQ1_COF5, 0x0 }, + { NAU8821_R46_BIQ1_COF6, 0x0 }, + { NAU8821_R47_BIQ1_COF7, 0x0 }, + { NAU8821_R48_BIQ1_COF8, 0x0 }, + { NAU8821_R49_BIQ1_COF9, 0x0 }, + { NAU8821_R4A_BIQ1_COF10, 0x0 }, + { NAU8821_R4B_CLASSG_CTRL, 0x0 }, + { NAU8821_R4C_IMM_MODE_CTRL, 0x0 }, + { NAU8821_R4D_IMM_RMS_L, 0x0 }, + { NAU8821_R53_OTPDOUT_1, 0xaad8 }, + { NAU8821_R54_OTPDOUT_2, 0x0002 }, + { NAU8821_R55_MISC_CTRL, 0x0 }, + { NAU8821_R66_BIAS_ADJ, 0x0 }, + { NAU8821_R68_TRIM_SETTINGS, 0x0 }, + { NAU8821_R69_ANALOG_CONTROL_1, 0x0 }, + { NAU8821_R6A_ANALOG_CONTROL_2, 0x0 }, + { NAU8821_R6B_PGA_MUTE, 0x0 }, + { NAU8821_R71_ANALOG_ADC_1, 0x0011 }, + { NAU8821_R72_ANALOG_ADC_2, 0x0020 }, + { NAU8821_R73_RDAC, 0x0008 }, + { NAU8821_R74_MIC_BIAS, 0x0006 }, + { NAU8821_R76_BOOST, 0x0 }, + { NAU8821_R77_FEPGA, 0x0 }, + { NAU8821_R7E_PGA_GAIN, 0x0 }, + { NAU8821_R7F_POWER_UP_CONTROL, 0x0 }, + { NAU8821_R80_CHARGE_PUMP, 0x0 }, +}; + +static bool nau8821_readable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case NAU8821_R00_RESET ... NAU8821_R01_ENA_CTRL: + case NAU8821_R03_CLK_DIVIDER ... NAU8821_R0B_FLL8: + case NAU8821_R0D_JACK_DET_CTRL: + case NAU8821_R0F_INTERRUPT_MASK ... NAU8821_R13_DMIC_CTRL: + case NAU8821_R1A_GPIO12_CTRL ... NAU8821_R1F_RIGHT_TIME_SLOT: + case NAU8821_R21_BIQ0_COF1 ... NAU8821_R2D_DAC_CTRL2: + case NAU8821_R2F_DAC_DGAIN_CTRL ... NAU8821_R32_HSVOL_CTRL: + case NAU8821_R34_DACR_CTRL ... NAU8821_R3D_DAC_DRC_ATKDCY: + case NAU8821_R41_BIQ1_COF1 ... NAU8821_R4F_FUSE_CTRL3: + case NAU8821_R51_FUSE_CTRL1: + case NAU8821_R53_OTPDOUT_1 ... NAU8821_R55_MISC_CTRL: + case NAU8821_R58_I2C_DEVICE_ID ... NAU8821_R5A_SOFTWARE_RST: + case NAU8821_R66_BIAS_ADJ: + case NAU8821_R68_TRIM_SETTINGS ... NAU8821_R6B_PGA_MUTE: + case NAU8821_R71_ANALOG_ADC_1 ... NAU8821_R74_MIC_BIAS: + case NAU8821_R76_BOOST ... NAU8821_R77_FEPGA: + case NAU8821_R7E_PGA_GAIN ... NAU8821_R82_GENERAL_STATUS: + return true; + default: + return false; + } +} + +static bool nau8821_writeable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case NAU8821_R00_RESET ... NAU8821_R01_ENA_CTRL: + case NAU8821_R03_CLK_DIVIDER ... NAU8821_R0B_FLL8: + case NAU8821_R0D_JACK_DET_CTRL: + case NAU8821_R0F_INTERRUPT_MASK: + case NAU8821_R11_INT_CLR_KEY_STATUS ... NAU8821_R13_DMIC_CTRL: + case NAU8821_R1A_GPIO12_CTRL ... NAU8821_R1F_RIGHT_TIME_SLOT: + case NAU8821_R21_BIQ0_COF1 ... NAU8821_R2D_DAC_CTRL2: + case NAU8821_R2F_DAC_DGAIN_CTRL ... NAU8821_R32_HSVOL_CTRL: + case NAU8821_R34_DACR_CTRL ... NAU8821_R3D_DAC_DRC_ATKDCY: + case NAU8821_R41_BIQ1_COF1 ... NAU8821_R4C_IMM_MODE_CTRL: + case NAU8821_R4E_FUSE_CTRL2 ... NAU8821_R4F_FUSE_CTRL3: + case NAU8821_R51_FUSE_CTRL1: + case NAU8821_R55_MISC_CTRL: + case NAU8821_R5A_SOFTWARE_RST: + case NAU8821_R66_BIAS_ADJ: + case NAU8821_R68_TRIM_SETTINGS ... NAU8821_R6B_PGA_MUTE: + case NAU8821_R71_ANALOG_ADC_1 ... NAU8821_R74_MIC_BIAS: + case NAU8821_R76_BOOST ... NAU8821_R77_FEPGA: + case NAU8821_R7E_PGA_GAIN ... NAU8821_R80_CHARGE_PUMP: + return true; + default: + return false; + } +} + +static bool nau8821_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case NAU8821_R00_RESET: + case NAU8821_R10_IRQ_STATUS ... NAU8821_R11_INT_CLR_KEY_STATUS: + case NAU8821_R21_BIQ0_COF1 ... NAU8821_R2A_BIQ0_COF10: + case NAU8821_R41_BIQ1_COF1 ... NAU8821_R4A_BIQ1_COF10: + case NAU8821_R4D_IMM_RMS_L: + case NAU8821_R53_OTPDOUT_1 ... NAU8821_R54_OTPDOUT_2: + case NAU8821_R58_I2C_DEVICE_ID ... NAU8821_R5A_SOFTWARE_RST: + case NAU8821_R81_CHARGE_PUMP_INPUT_READ ... NAU8821_R82_GENERAL_STATUS: + return true; + default: + return false; + } +} + +static int nau8821_biq_coeff_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + struct soc_bytes_ext *params = (void *)kcontrol->private_value; + + if (!component->regmap) + return -EINVAL; + + regmap_raw_read(component->regmap, NAU8821_R21_BIQ0_COF1, + ucontrol->value.bytes.data, params->max); + + return 0; +} + +static int nau8821_biq_coeff_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + struct soc_bytes_ext *params = (void *)kcontrol->private_value; + void *data; + + if (!component->regmap) + return -EINVAL; + + data = kmemdup(ucontrol->value.bytes.data, + params->max, GFP_KERNEL | GFP_DMA); + if (!data) + return -ENOMEM; + + regmap_raw_write(component->regmap, NAU8821_R21_BIQ0_COF1, + data, params->max); + + kfree(data); + + return 0; +} + +static const char * const nau8821_adc_decimation[] = { + "32", "64", "128", "256" }; + +static const struct soc_enum nau8821_adc_decimation_enum = + SOC_ENUM_SINGLE(NAU8821_R2B_ADC_RATE, NAU8821_ADC_SYNC_DOWN_SFT, + ARRAY_SIZE(nau8821_adc_decimation), nau8821_adc_decimation); + +static const char * const nau8821_dac_oversampl[] = { + "64", "256", "128", "", "32" }; + +static const struct soc_enum nau8821_dac_oversampl_enum = + SOC_ENUM_SINGLE(NAU8821_R2C_DAC_CTRL1, NAU8821_DAC_OVERSAMPLE_SFT, + ARRAY_SIZE(nau8821_dac_oversampl), nau8821_dac_oversampl); + +static const DECLARE_TLV_DB_MINMAX_MUTE(adc_vol_tlv, -6600, 2400); +static const DECLARE_TLV_DB_MINMAX_MUTE(sidetone_vol_tlv, -4200, 0); +static const DECLARE_TLV_DB_MINMAX(hp_vol_tlv, -900, 0); +static const DECLARE_TLV_DB_SCALE(playback_vol_tlv, -6600, 50, 1); +static const DECLARE_TLV_DB_MINMAX(fepga_gain_tlv, -100, 3600); +static const DECLARE_TLV_DB_MINMAX_MUTE(crosstalk_vol_tlv, -7000, 2400); + +static const struct snd_kcontrol_new nau8821_controls[] = { + SOC_DOUBLE_TLV("Mic Volume", NAU8821_R35_ADC_DGAIN_CTRL1, + NAU8821_ADCL_CH_VOL_SFT, NAU8821_ADCR_CH_VOL_SFT, + 0xff, 0, adc_vol_tlv), + SOC_DOUBLE_TLV("Headphone Bypass Volume", NAU8821_R30_ADC_DGAIN_CTRL, + 12, 8, 0x0f, 0, sidetone_vol_tlv), + SOC_DOUBLE_TLV("Headphone Volume", NAU8821_R32_HSVOL_CTRL, + NAU8821_HPL_VOL_SFT, NAU8821_HPR_VOL_SFT, 0x3, 1, hp_vol_tlv), + SOC_DOUBLE_TLV("Digital Playback Volume", NAU8821_R34_DACR_CTRL, + NAU8821_DACL_CH_VOL_SFT, NAU8821_DACR_CH_VOL_SFT, + 0xcf, 0, playback_vol_tlv), + SOC_DOUBLE_TLV("Frontend PGA Volume", NAU8821_R7E_PGA_GAIN, + NAU8821_PGA_GAIN_L_SFT, NAU8821_PGA_GAIN_R_SFT, + 37, 0, fepga_gain_tlv), + SOC_DOUBLE_TLV("Headphone Crosstalk Volume", + NAU8821_R2F_DAC_DGAIN_CTRL, + 0, 8, 0xff, 0, crosstalk_vol_tlv), + + SOC_ENUM("ADC Decimation Rate", nau8821_adc_decimation_enum), + SOC_ENUM("DAC Oversampling Rate", nau8821_dac_oversampl_enum), + SND_SOC_BYTES_EXT("BIQ Coefficients", 20, + nau8821_biq_coeff_get, nau8821_biq_coeff_put), + SOC_SINGLE("ADC Phase Switch", NAU8821_R1B_TDM_CTRL, + NAU8821_ADCPHS_SFT, 1, 0), +}; + +static const struct snd_kcontrol_new nau8821_dmic_mode_switch = + SOC_DAPM_SINGLE("Switch", NAU8821_R13_DMIC_CTRL, + NAU8821_DMIC_EN_SFT, 1, 0); + +static int dmic_clock_control(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) +{ + struct snd_soc_component *component = + snd_soc_dapm_to_component(w->dapm); + struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); + int i, speed_selection = -1, clk_adc_src, clk_adc; + unsigned int clk_divider_r03; + + /* The DMIC clock is gotten from adc clock divided by + * CLK_DMIC_SRC (1, 2, 4, 8). The clock has to be equal or + * less than nau8821->dmic_clk_threshold. + */ + regmap_read(nau8821->regmap, NAU8821_R03_CLK_DIVIDER, + &clk_divider_r03); + clk_adc_src = (clk_divider_r03 & NAU8821_CLK_ADC_SRC_MASK) + >> NAU8821_CLK_ADC_SRC_SFT; + clk_adc = (nau8821->fs * 256) >> clk_adc_src; + + for (i = 0 ; i < 4 ; i++) + if ((clk_adc >> dmic_speed_sel[i].param) <= + nau8821->dmic_clk_threshold) { + speed_selection = dmic_speed_sel[i].val; + break; + } + if (speed_selection < 0) + return -EINVAL; + + dev_dbg(nau8821->dev, + "clk_adc=%d, dmic_clk_threshold = %d, param=%d, val = %d\n", + clk_adc, nau8821->dmic_clk_threshold, + dmic_speed_sel[i].param, dmic_speed_sel[i].val); + regmap_update_bits(nau8821->regmap, NAU8821_R13_DMIC_CTRL, + NAU8821_DMIC_SRC_MASK, + (speed_selection << NAU8821_DMIC_SRC_SFT)); + + return 0; +} + +static int nau8821_left_adc_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_component *component = + snd_soc_dapm_to_component(w->dapm); + struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); + + switch (event) { + case SND_SOC_DAPM_POST_PMU: + msleep(125); + regmap_update_bits(nau8821->regmap, NAU8821_R01_ENA_CTRL, + NAU8821_EN_ADCL, NAU8821_EN_ADCL); + break; + case SND_SOC_DAPM_POST_PMD: + regmap_update_bits(nau8821->regmap, + NAU8821_R01_ENA_CTRL, NAU8821_EN_ADCL, 0); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int nau8821_right_adc_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_component *component = + snd_soc_dapm_to_component(w->dapm); + struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); + + switch (event) { + case SND_SOC_DAPM_POST_PMU: + msleep(125); + regmap_update_bits(nau8821->regmap, NAU8821_R01_ENA_CTRL, + NAU8821_EN_ADCR, NAU8821_EN_ADCR); + break; + case SND_SOC_DAPM_POST_PMD: + regmap_update_bits(nau8821->regmap, + NAU8821_R01_ENA_CTRL, NAU8821_EN_ADCR, 0); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int nau8821_pump_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_component *component = + snd_soc_dapm_to_component(w->dapm); + struct nau8821 *nau8821 = + snd_soc_component_get_drvdata(component); + + switch (event) { + case SND_SOC_DAPM_POST_PMU: + /* Prevent startup click by letting charge pump to ramp up */ + msleep(20); + regmap_update_bits(nau8821->regmap, NAU8821_R80_CHARGE_PUMP, + NAU8821_JAMNODCLOW, NAU8821_JAMNODCLOW); + break; + case SND_SOC_DAPM_PRE_PMD: + regmap_update_bits(nau8821->regmap, NAU8821_R80_CHARGE_PUMP, + NAU8821_JAMNODCLOW, 0); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int nau8821_output_dac_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_component *component = + snd_soc_dapm_to_component(w->dapm); + struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + /* Disables the TESTDAC to let DAC signal pass through. */ + regmap_update_bits(nau8821->regmap, NAU8821_R66_BIAS_ADJ, + NAU8821_BIAS_TESTDAC_EN, 0); + break; + case SND_SOC_DAPM_POST_PMD: + regmap_update_bits(nau8821->regmap, NAU8821_R66_BIAS_ADJ, + NAU8821_BIAS_TESTDAC_EN, NAU8821_BIAS_TESTDAC_EN); + break; + default: + return -EINVAL; + } + + return 0; +} + +static const struct snd_soc_dapm_widget nau8821_dapm_widgets[] = { + SND_SOC_DAPM_SUPPLY("MICBIAS", NAU8821_R74_MIC_BIAS, + NAU8821_MICBIAS_POWERUP_SFT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("DMIC Clock", SND_SOC_NOPM, 0, 0, + dmic_clock_control, SND_SOC_DAPM_POST_PMU), + SND_SOC_DAPM_ADC("ADCL Power", NULL, NAU8821_R72_ANALOG_ADC_2, + NAU8821_POWERUP_ADCL_SFT, 0), + SND_SOC_DAPM_ADC("ADCR Power", NULL, NAU8821_R72_ANALOG_ADC_2, + NAU8821_POWERUP_ADCR_SFT, 0), + SND_SOC_DAPM_PGA_S("Frontend PGA L", 1, NAU8821_R7F_POWER_UP_CONTROL, + NAU8821_PUP_PGA_L_SFT, 0, NULL, 0), + SND_SOC_DAPM_PGA_S("Frontend PGA R", 1, NAU8821_R7F_POWER_UP_CONTROL, + NAU8821_PUP_PGA_R_SFT, 0, NULL, 0), + SND_SOC_DAPM_PGA_S("ADCL Digital path", 0, NAU8821_R01_ENA_CTRL, + NAU8821_EN_ADCL_SFT, 0, nau8821_left_adc_event, + SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), + SND_SOC_DAPM_PGA_S("ADCR Digital path", 0, NAU8821_R01_ENA_CTRL, + NAU8821_EN_ADCR_SFT, 0, nau8821_right_adc_event, + SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), + SND_SOC_DAPM_SWITCH("DMIC Enable", SND_SOC_NOPM, + 0, 0, &nau8821_dmic_mode_switch), + SND_SOC_DAPM_AIF_OUT("AIFTX", "Capture", 0, NAU8821_R1D_I2S_PCM_CTRL2, + NAU8821_I2S_TRISTATE_SFT, 1), + SND_SOC_DAPM_AIF_IN("AIFRX", "Playback", 0, SND_SOC_NOPM, 0, 0), + + SND_SOC_DAPM_PGA_S("ADACL", 2, NAU8821_R73_RDAC, + NAU8821_DACL_EN_SFT, 0, NULL, 0), + SND_SOC_DAPM_PGA_S("ADACR", 2, NAU8821_R73_RDAC, + NAU8821_DACR_EN_SFT, 0, NULL, 0), + SND_SOC_DAPM_PGA_S("ADACL Clock", 3, NAU8821_R73_RDAC, + NAU8821_DACL_CLK_EN_SFT, 0, NULL, 0), + SND_SOC_DAPM_PGA_S("ADACR Clock", 3, NAU8821_R73_RDAC, + NAU8821_DACR_CLK_EN_SFT, 0, NULL, 0), + SND_SOC_DAPM_DAC("DDACR", NULL, NAU8821_R01_ENA_CTRL, + NAU8821_EN_DACR_SFT, 0), + SND_SOC_DAPM_DAC("DDACL", NULL, NAU8821_R01_ENA_CTRL, + NAU8821_EN_DACL_SFT, 0), + SND_SOC_DAPM_PGA_S("HP amp L", 0, NAU8821_R4B_CLASSG_CTRL, + NAU8821_CLASSG_LDAC_EN_SFT, 0, NULL, 0), + SND_SOC_DAPM_PGA_S("HP amp R", 0, NAU8821_R4B_CLASSG_CTRL, + NAU8821_CLASSG_RDAC_EN_SFT, 0, NULL, 0), + SND_SOC_DAPM_PGA_S("Charge Pump", 1, NAU8821_R80_CHARGE_PUMP, + NAU8821_CHANRGE_PUMP_EN_SFT, 0, nau8821_pump_event, + SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), + SND_SOC_DAPM_PGA_S("Output Driver R Stage 1", 4, + NAU8821_R7F_POWER_UP_CONTROL, + NAU8821_PUP_INTEG_R_SFT, 0, NULL, 0), + SND_SOC_DAPM_PGA_S("Output Driver L Stage 1", 4, + NAU8821_R7F_POWER_UP_CONTROL, + NAU8821_PUP_INTEG_L_SFT, 0, NULL, 0), + SND_SOC_DAPM_PGA_S("Output Driver R Stage 2", 5, + NAU8821_R7F_POWER_UP_CONTROL, + NAU8821_PUP_DRV_INSTG_R_SFT, 0, NULL, 0), + SND_SOC_DAPM_PGA_S("Output Driver L Stage 2", 5, + NAU8821_R7F_POWER_UP_CONTROL, + NAU8821_PUP_DRV_INSTG_L_SFT, 0, NULL, 0), + SND_SOC_DAPM_PGA_S("Output Driver R Stage 3", 6, + NAU8821_R7F_POWER_UP_CONTROL, + NAU8821_PUP_MAIN_DRV_R_SFT, 0, NULL, 0), + SND_SOC_DAPM_PGA_S("Output Driver L Stage 3", 6, + NAU8821_R7F_POWER_UP_CONTROL, + NAU8821_PUP_MAIN_DRV_L_SFT, 0, NULL, 0), + SND_SOC_DAPM_PGA_S("Output DACL", 7, + NAU8821_R80_CHARGE_PUMP, NAU8821_POWER_DOWN_DACL_SFT, + 0, nau8821_output_dac_event, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), + SND_SOC_DAPM_PGA_S("Output DACR", 7, + NAU8821_R80_CHARGE_PUMP, NAU8821_POWER_DOWN_DACR_SFT, + 0, nau8821_output_dac_event, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), + + /* HPOL/R are ungrounded by disabling 16 Ohm pull-downs on playback */ + SND_SOC_DAPM_PGA_S("HPOL Pulldown", 8, + NAU8821_R0D_JACK_DET_CTRL, + NAU8821_SPKR_DWN1L_SFT, 0, NULL, 0), + SND_SOC_DAPM_PGA_S("HPOR Pulldown", 8, + NAU8821_R0D_JACK_DET_CTRL, + NAU8821_SPKR_DWN1R_SFT, 0, NULL, 0), + + /* High current HPOL/R boost driver */ + SND_SOC_DAPM_PGA_S("HP Boost Driver", 9, + NAU8821_R76_BOOST, NAU8821_HP_BOOST_DIS_SFT, 1, NULL, 0), + SND_SOC_DAPM_PGA("Class G", NAU8821_R4B_CLASSG_CTRL, + NAU8821_CLASSG_EN_SFT, 0, NULL, 0), + + SND_SOC_DAPM_INPUT("MICL"), + SND_SOC_DAPM_INPUT("MICR"), + SND_SOC_DAPM_INPUT("DMIC"), + SND_SOC_DAPM_OUTPUT("HPOL"), + SND_SOC_DAPM_OUTPUT("HPOR"), +}; + +static const struct snd_soc_dapm_route nau8821_dapm_routes[] = { + {"DMIC Enable", "Switch", "DMIC"}, + {"DMIC Enable", NULL, "DMIC Clock"}, + + {"Frontend PGA L", NULL, "MICL"}, + {"Frontend PGA R", NULL, "MICR"}, + {"Frontend PGA L", NULL, "MICBIAS"}, + {"Frontend PGA R", NULL, "MICBIAS"}, + + {"ADCL Power", NULL, "Frontend PGA L"}, + {"ADCR Power", NULL, "Frontend PGA R"}, + + {"ADCL Digital path", NULL, "ADCL Power"}, + {"ADCR Digital path", NULL, "ADCR Power"}, + {"ADCL Digital path", NULL, "DMIC Enable"}, + {"ADCR Digital path", NULL, "DMIC Enable"}, + + {"AIFTX", NULL, "ADCL Digital path"}, + {"AIFTX", NULL, "ADCR Digital path"}, + + {"DDACL", NULL, "AIFRX"}, + {"DDACR", NULL, "AIFRX"}, + + {"HP amp L", NULL, "DDACL"}, + {"HP amp R", NULL, "DDACR"}, + + {"Charge Pump", NULL, "HP amp L"}, + {"Charge Pump", NULL, "HP amp R"}, + + {"ADACL", NULL, "Charge Pump"}, + {"ADACR", NULL, "Charge Pump"}, + {"ADACL Clock", NULL, "ADACL"}, + {"ADACR Clock", NULL, "ADACR"}, + + {"Output Driver L Stage 1", NULL, "ADACL Clock"}, + {"Output Driver R Stage 1", NULL, "ADACR Clock"}, + {"Output Driver L Stage 2", NULL, "Output Driver L Stage 1"}, + {"Output Driver R Stage 2", NULL, "Output Driver R Stage 1"}, + {"Output Driver L Stage 3", NULL, "Output Driver L Stage 2"}, + {"Output Driver R Stage 3", NULL, "Output Driver R Stage 2"}, + {"Output DACL", NULL, "Output Driver L Stage 3"}, + {"Output DACR", NULL, "Output Driver R Stage 3"}, + + {"HPOL Pulldown", NULL, "Output DACL"}, + {"HPOR Pulldown", NULL, "Output DACR"}, + {"HP Boost Driver", NULL, "HPOL Pulldown"}, + {"HP Boost Driver", NULL, "HPOR Pulldown"}, + + {"Class G", NULL, "HP Boost Driver"}, + {"HPOL", NULL, "Class G"}, + {"HPOR", NULL, "Class G"}, +}; + +static int nau8821_clock_check(struct nau8821 *nau8821, + int stream, int rate, int osr) +{ + int osrate = 0; + + if (stream == SNDRV_PCM_STREAM_PLAYBACK) { + if (osr >= ARRAY_SIZE(osr_dac_sel)) + return -EINVAL; + osrate = osr_dac_sel[osr].osr; + } else { + if (osr >= ARRAY_SIZE(osr_adc_sel)) + return -EINVAL; + osrate = osr_adc_sel[osr].osr; + } + + if (!osrate || rate * osrate > CLK_DA_AD_MAX) { + dev_err(nau8821->dev, + "exceed the maximum frequency of CLK_ADC or CLK_DAC"); + return -EINVAL; + } + + return 0; +} + +static int nau8821_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 nau8821 *nau8821 = snd_soc_component_get_drvdata(component); + unsigned int val_len = 0, osr, ctrl_val, bclk_fs, clk_div; + + nau8821->fs = params_rate(params); + /* CLK_DAC or CLK_ADC = OSR * FS + * DAC or ADC clock frequency is defined as Over Sampling Rate (OSR) + * multiplied by the audio sample rate (Fs). Note that the OSR and Fs + * values must be selected such that the maximum frequency is less + * than 6.144 MHz. + */ + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + regmap_read(nau8821->regmap, NAU8821_R2C_DAC_CTRL1, &osr); + osr &= NAU8821_DAC_OVERSAMPLE_MASK; + if (nau8821_clock_check(nau8821, substream->stream, + nau8821->fs, osr)) { + return -EINVAL; + } + regmap_update_bits(nau8821->regmap, NAU8821_R03_CLK_DIVIDER, + NAU8821_CLK_DAC_SRC_MASK, + osr_dac_sel[osr].clk_src << NAU8821_CLK_DAC_SRC_SFT); + } else { + regmap_read(nau8821->regmap, NAU8821_R2B_ADC_RATE, &osr); + osr &= NAU8821_ADC_SYNC_DOWN_MASK; + if (nau8821_clock_check(nau8821, substream->stream, + nau8821->fs, osr)) { + return -EINVAL; + } + regmap_update_bits(nau8821->regmap, NAU8821_R03_CLK_DIVIDER, + NAU8821_CLK_ADC_SRC_MASK, + osr_adc_sel[osr].clk_src << NAU8821_CLK_ADC_SRC_SFT); + } + + /* make BCLK and LRC divde configuration if the codec as master. */ + regmap_read(nau8821->regmap, NAU8821_R1D_I2S_PCM_CTRL2, &ctrl_val); + if (ctrl_val & NAU8821_I2S_MS_MASTER) { + /* get the bclk and fs ratio */ + bclk_fs = snd_soc_params_to_bclk(params) / nau8821->fs; + if (bclk_fs <= 32) + clk_div = 3; + else if (bclk_fs <= 64) + clk_div = 2; + else if (bclk_fs <= 128) + clk_div = 1; + else { + return -EINVAL; + } + regmap_update_bits(nau8821->regmap, NAU8821_R1D_I2S_PCM_CTRL2, + NAU8821_I2S_LRC_DIV_MASK | NAU8821_I2S_BLK_DIV_MASK, + (clk_div << NAU8821_I2S_LRC_DIV_SFT) | clk_div); + } + + switch (params_width(params)) { + case 16: + val_len |= NAU8821_I2S_DL_16; + break; + case 20: + val_len |= NAU8821_I2S_DL_20; + break; + case 24: + val_len |= NAU8821_I2S_DL_24; + break; + case 32: + val_len |= NAU8821_I2S_DL_32; + break; + default: + return -EINVAL; + } + + regmap_update_bits(nau8821->regmap, NAU8821_R1C_I2S_PCM_CTRL1, + NAU8821_I2S_DL_MASK, val_len); + + return 0; +} + +static int nau8821_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) +{ + struct snd_soc_component *component = codec_dai->component; + struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); + unsigned int ctrl1_val = 0, ctrl2_val = 0; + + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBP_CFP: + ctrl2_val |= NAU8821_I2S_MS_MASTER; + break; + case SND_SOC_DAIFMT_CBC_CFC: + break; + default: + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + case SND_SOC_DAIFMT_IB_NF: + ctrl1_val |= NAU8821_I2S_BP_INV; + break; + default: + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + ctrl1_val |= NAU8821_I2S_DF_I2S; + break; + case SND_SOC_DAIFMT_LEFT_J: + ctrl1_val |= NAU8821_I2S_DF_LEFT; + break; + case SND_SOC_DAIFMT_RIGHT_J: + ctrl1_val |= NAU8821_I2S_DF_RIGTH; + break; + case SND_SOC_DAIFMT_DSP_A: + ctrl1_val |= NAU8821_I2S_DF_PCM_AB; + break; + case SND_SOC_DAIFMT_DSP_B: + ctrl1_val |= NAU8821_I2S_DF_PCM_AB; + ctrl1_val |= NAU8821_I2S_PCMB_EN; + break; + default: + return -EINVAL; + } + + regmap_update_bits(nau8821->regmap, NAU8821_R1C_I2S_PCM_CTRL1, + NAU8821_I2S_DL_MASK | NAU8821_I2S_DF_MASK | + NAU8821_I2S_BP_MASK | NAU8821_I2S_PCMB_MASK, ctrl1_val); + regmap_update_bits(nau8821->regmap, NAU8821_R1D_I2S_PCM_CTRL2, + NAU8821_I2S_MS_MASK, ctrl2_val); + + return 0; +} + +static int nau8821_digital_mute(struct snd_soc_dai *dai, int mute, + int direction) +{ + struct snd_soc_component *component = dai->component; + struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); + unsigned int val = 0; + + if (mute) + val = NAU8821_DAC_SOFT_MUTE; + + return regmap_update_bits(nau8821->regmap, + NAU8821_R31_MUTE_CTRL, NAU8821_DAC_SOFT_MUTE, val); +} + +static const struct snd_soc_dai_ops nau8821_dai_ops = { + .hw_params = nau8821_hw_params, + .set_fmt = nau8821_set_dai_fmt, + .mute_stream = nau8821_digital_mute, +}; + +#define NAU8821_RATES SNDRV_PCM_RATE_8000_192000 +#define NAU8821_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE \ + | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE) + +static struct snd_soc_dai_driver nau8821_dai = { + .name = NUVOTON_CODEC_DAI, + .playback = { + .stream_name = "Playback", + .channels_min = 1, + .channels_max = 2, + .rates = NAU8821_RATES, + .formats = NAU8821_FORMATS, + }, + .capture = { + .stream_name = "Capture", + .channels_min = 1, + .channels_max = 2, + .rates = NAU8821_RATES, + .formats = NAU8821_FORMATS, + }, + .ops = &nau8821_dai_ops, +}; + + +static bool nau8821_is_jack_inserted(struct regmap *regmap) +{ + bool active_high, is_high; + int status, jkdet; + + regmap_read(regmap, NAU8821_R0D_JACK_DET_CTRL, &jkdet); + active_high = jkdet & NAU8821_JACK_POLARITY; + regmap_read(regmap, NAU8821_R82_GENERAL_STATUS, &status); + is_high = status & NAU8821_GPIO2_IN; + /* return jack connection status according to jack insertion logic + * active high or active low. + */ + return active_high == is_high; +} + +static void nau8821_int_status_clear_all(struct regmap *regmap) +{ + int active_irq, clear_irq, i; + + /* Reset the intrruption status from rightmost bit if the corres- + * ponding irq event occurs. + */ + regmap_read(regmap, NAU8821_R10_IRQ_STATUS, &active_irq); + for (i = 0; i < NAU8821_REG_DATA_LEN; i++) { + clear_irq = (0x1 << i); + if (active_irq & clear_irq) + regmap_write(regmap, + NAU8821_R11_INT_CLR_KEY_STATUS, clear_irq); + } +} + +static void nau8821_eject_jack(struct nau8821 *nau8821) +{ + struct snd_soc_dapm_context *dapm = nau8821->dapm; + struct regmap *regmap = nau8821->regmap; + struct snd_soc_component *component = snd_soc_dapm_to_component(dapm); + + /* Detach 2kOhm Resistors from MICBIAS to MICGND */ + regmap_update_bits(regmap, NAU8821_R74_MIC_BIAS, + NAU8821_MICBIAS_JKR2, 0); + /* HPL/HPR short to ground */ + regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL, + NAU8821_SPKR_DWN1R | NAU8821_SPKR_DWN1L, 0); + snd_soc_component_disable_pin(component, "MICBIAS"); + snd_soc_dapm_sync(dapm); + + /* Clear all interruption status */ + nau8821_int_status_clear_all(regmap); + + /* Enable the insertion interruption, disable the ejection inter- + * ruption, and then bypass de-bounce circuit. + */ + regmap_update_bits(regmap, NAU8821_R12_INTERRUPT_DIS_CTRL, + NAU8821_IRQ_EJECT_DIS | NAU8821_IRQ_INSERT_DIS, + NAU8821_IRQ_EJECT_DIS); + /* Mask unneeded IRQs: 1 - disable, 0 - enable */ + regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK, + NAU8821_IRQ_EJECT_EN | NAU8821_IRQ_INSERT_EN, + NAU8821_IRQ_EJECT_EN); + + regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL, + NAU8821_JACK_DET_DB_BYPASS, NAU8821_JACK_DET_DB_BYPASS); + + /* Close clock for jack type detection at manual mode */ + if (dapm->bias_level < SND_SOC_BIAS_PREPARE) + nau8821_configure_sysclk(nau8821, NAU8821_CLK_DIS, 0); + + /* Recover to normal channel input */ + regmap_update_bits(regmap, NAU8821_R2B_ADC_RATE, + NAU8821_ADC_R_SRC_EN, 0); +} + +static void nau8821_jdet_work(struct work_struct *work) +{ + struct nau8821 *nau8821 = + container_of(work, struct nau8821, jdet_work); + struct snd_soc_dapm_context *dapm = nau8821->dapm; + struct snd_soc_component *component = snd_soc_dapm_to_component(dapm); + struct regmap *regmap = nau8821->regmap; + int jack_status_reg, mic_detected, event = 0, event_mask = 0; + + snd_soc_component_force_enable_pin(component, "MICBIAS"); + snd_soc_dapm_sync(dapm); + msleep(20); + + regmap_read(regmap, NAU8821_R58_I2C_DEVICE_ID, &jack_status_reg); + mic_detected = !(jack_status_reg & NAU8821_KEYDET); + if (mic_detected) { + dev_dbg(nau8821->dev, "Headset connected\n"); + event |= SND_JACK_HEADSET; + + /* 2kOhm Resistor from MICBIAS to MICGND1 */ + regmap_update_bits(regmap, NAU8821_R74_MIC_BIAS, + NAU8821_MICBIAS_JKR2, NAU8821_MICBIAS_JKR2); + /* Latch Right Channel Analog data + * input into the Right Channel Filter + */ + regmap_update_bits(regmap, NAU8821_R2B_ADC_RATE, + NAU8821_ADC_R_SRC_EN, NAU8821_ADC_R_SRC_EN); + } else { + dev_dbg(nau8821->dev, "Headphone connected\n"); + event |= SND_JACK_HEADPHONE; + snd_soc_component_disable_pin(component, "MICBIAS"); + snd_soc_dapm_sync(dapm); + } + event_mask |= SND_JACK_HEADSET; + snd_soc_jack_report(nau8821->jack, event, event_mask); +} + +/* Enable interruptions with internal clock. */ +static void nau8821_setup_inserted_irq(struct nau8821 *nau8821) +{ + struct regmap *regmap = nau8821->regmap; + + /* Enable internal VCO needed for interruptions */ + if (nau8821->dapm->bias_level < SND_SOC_BIAS_PREPARE) + nau8821_configure_sysclk(nau8821, NAU8821_CLK_INTERNAL, 0); + + /* Chip needs one FSCLK cycle in order to generate interruptions, + * as we cannot guarantee one will be provided by the system. Turning + * master mode on then off enables us to generate that FSCLK cycle + * with a minimum of contention on the clock bus. + */ + regmap_update_bits(regmap, NAU8821_R1D_I2S_PCM_CTRL2, + NAU8821_I2S_MS_MASK, NAU8821_I2S_MS_MASTER); + regmap_update_bits(regmap, NAU8821_R1D_I2S_PCM_CTRL2, + NAU8821_I2S_MS_MASK, NAU8821_I2S_MS_SLAVE); + + /* Not bypass de-bounce circuit */ + regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL, + NAU8821_JACK_DET_DB_BYPASS, 0); + + regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK, + NAU8821_IRQ_EJECT_EN, 0); + regmap_update_bits(regmap, NAU8821_R12_INTERRUPT_DIS_CTRL, + NAU8821_IRQ_EJECT_DIS, 0); +} + +static irqreturn_t nau8821_interrupt(int irq, void *data) +{ + struct nau8821 *nau8821 = (struct nau8821 *)data; + struct regmap *regmap = nau8821->regmap; + int active_irq, clear_irq = 0, event = 0, event_mask = 0; + + if (regmap_read(regmap, NAU8821_R10_IRQ_STATUS, &active_irq)) { + dev_err(nau8821->dev, "failed to read irq status\n"); + return IRQ_NONE; + } + + dev_dbg(nau8821->dev, "IRQ %d\n", active_irq); + + if ((active_irq & NAU8821_JACK_EJECT_IRQ_MASK) == + NAU8821_JACK_EJECT_DETECTED) { + regmap_update_bits(regmap, NAU8821_R71_ANALOG_ADC_1, + NAU8821_MICDET_MASK, NAU8821_MICDET_DIS); + nau8821_eject_jack(nau8821); + event_mask |= SND_JACK_HEADSET; + clear_irq = NAU8821_JACK_EJECT_IRQ_MASK; + } else if ((active_irq & NAU8821_JACK_INSERT_IRQ_MASK) == + NAU8821_JACK_INSERT_DETECTED) { + regmap_update_bits(regmap, NAU8821_R71_ANALOG_ADC_1, + NAU8821_MICDET_MASK, NAU8821_MICDET_EN); + if (nau8821_is_jack_inserted(regmap)) { + /* detect microphone and jack type */ + cancel_work_sync(&nau8821->jdet_work); + schedule_work(&nau8821->jdet_work); + /* Turn off insertion interruption at manual mode */ + regmap_update_bits(regmap, + NAU8821_R12_INTERRUPT_DIS_CTRL, + NAU8821_IRQ_INSERT_DIS, + NAU8821_IRQ_INSERT_DIS); + regmap_update_bits(regmap, + NAU8821_R0F_INTERRUPT_MASK, + NAU8821_IRQ_INSERT_EN, + NAU8821_IRQ_INSERT_EN); + nau8821_setup_inserted_irq(nau8821); + } else { + dev_warn(nau8821->dev, + "Inserted IRQ fired but not connected\n"); + nau8821_eject_jack(nau8821); + } + } + + if (!clear_irq) + clear_irq = active_irq; + /* clears the rightmost interruption */ + regmap_write(regmap, NAU8821_R11_INT_CLR_KEY_STATUS, clear_irq); + + if (event_mask) + snd_soc_jack_report(nau8821->jack, event, event_mask); + + return IRQ_HANDLED; +} + +static const struct regmap_config nau8821_regmap_config = { + .val_bits = NAU8821_REG_DATA_LEN, + .reg_bits = NAU8821_REG_ADDR_LEN, + + .max_register = NAU8821_REG_MAX, + .readable_reg = nau8821_readable_reg, + .writeable_reg = nau8821_writeable_reg, + .volatile_reg = nau8821_volatile_reg, + + .cache_type = REGCACHE_RBTREE, + .reg_defaults = nau8821_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(nau8821_reg_defaults), +}; + +static int nau8821_component_probe(struct snd_soc_component *component) +{ + struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); + struct snd_soc_dapm_context *dapm = + snd_soc_component_get_dapm(component); + + nau8821->dapm = dapm; + + return 0; +} + +/** + * nau8821_calc_fll_param - Calculate FLL parameters. + * @fll_in: external clock provided to codec. + * @fs: sampling rate. + * @fll_param: Pointer to structure of FLL parameters. + * + * Calculate FLL parameters to configure codec. + * + * Returns 0 for success or negative error code. + */ +static int nau8821_calc_fll_param(unsigned int fll_in, + unsigned int fs, struct nau8821_fll *fll_param) +{ + u64 fvco, fvco_max; + unsigned int fref, i, fvco_sel; + + /* Ensure the reference clock frequency (FREF) is <= 13.5MHz by + * dividing freq_in by 1, 2, 4, or 8 using FLL pre-scalar. + * FREF = freq_in / NAU8821_FLL_REF_DIV_MASK + */ + for (i = 0; i < ARRAY_SIZE(fll_pre_scalar); i++) { + fref = fll_in >> fll_pre_scalar[i].param; + if (fref <= NAU_FREF_MAX) + break; + } + if (i == ARRAY_SIZE(fll_pre_scalar)) + return -EINVAL; + fll_param->clk_ref_div = fll_pre_scalar[i].val; + + /* Choose the FLL ratio based on FREF */ + for (i = 0; i < ARRAY_SIZE(fll_ratio); i++) { + if (fref >= fll_ratio[i].param) + break; + } + if (i == ARRAY_SIZE(fll_ratio)) + return -EINVAL; + fll_param->ratio = fll_ratio[i].val; + + /* Calculate the frequency of DCO (FDCO) given freq_out = 256 * Fs. + * FDCO must be within the 90MHz - 100MHz or the FFL cannot be + * guaranteed across the full range of operation. + * FDCO = freq_out * 2 * mclk_src_scaling + */ + fvco_max = 0; + fvco_sel = ARRAY_SIZE(mclk_src_scaling); + for (i = 0; i < ARRAY_SIZE(mclk_src_scaling); i++) { + fvco = 256ULL * fs * 2 * mclk_src_scaling[i].param; + if (fvco > NAU_FVCO_MIN && fvco < NAU_FVCO_MAX && + fvco_max < fvco) { + fvco_max = fvco; + fvco_sel = i; + } + } + if (ARRAY_SIZE(mclk_src_scaling) == fvco_sel) + return -EINVAL; + fll_param->mclk_src = mclk_src_scaling[fvco_sel].val; + + /* Calculate the FLL 10-bit integer input and the FLL 24-bit fractional + * input based on FDCO, FREF and FLL ratio. + */ + fvco = div_u64(fvco_max << 24, fref * fll_param->ratio); + fll_param->fll_int = (fvco >> 24) & 0x3ff; + fll_param->fll_frac = fvco & 0xffffff; + + return 0; +} + +static void nau8821_fll_apply(struct nau8821 *nau8821, + struct nau8821_fll *fll_param) +{ + struct regmap *regmap = nau8821->regmap; + + regmap_update_bits(regmap, NAU8821_R03_CLK_DIVIDER, + NAU8821_CLK_SRC_MASK | NAU8821_CLK_MCLK_SRC_MASK, + NAU8821_CLK_SRC_MCLK | fll_param->mclk_src); + /* Make DSP operate at high speed for better performance. */ + regmap_update_bits(regmap, NAU8821_R04_FLL1, + NAU8821_FLL_RATIO_MASK | NAU8821_ICTRL_LATCH_MASK, + fll_param->ratio | (0x6 << NAU8821_ICTRL_LATCH_SFT)); + /* FLL 24-bit fractional input */ + regmap_write(regmap, NAU8821_R0A_FLL7, + (fll_param->fll_frac >> 16) & 0xff); + regmap_write(regmap, NAU8821_R0B_FLL8, fll_param->fll_frac & 0xffff); + /* FLL 10-bit integer input */ + regmap_update_bits(regmap, NAU8821_R06_FLL3, + NAU8821_FLL_INTEGER_MASK, fll_param->fll_int); + /* FLL pre-scaler */ + regmap_update_bits(regmap, NAU8821_R07_FLL4, + NAU8821_HIGHBW_EN | NAU8821_FLL_REF_DIV_MASK, + NAU8821_HIGHBW_EN | + (fll_param->clk_ref_div << NAU8821_FLL_REF_DIV_SFT)); + /* select divided VCO input */ + regmap_update_bits(regmap, NAU8821_R08_FLL5, + NAU8821_FLL_CLK_SW_MASK, NAU8821_FLL_CLK_SW_REF); + /* Disable free-running mode */ + regmap_update_bits(regmap, + NAU8821_R09_FLL6, NAU8821_DCO_EN, 0); + if (fll_param->fll_frac) { + /* set FLL loop filter enable and cutoff frequency at 500Khz */ + regmap_update_bits(regmap, NAU8821_R08_FLL5, + NAU8821_FLL_PDB_DAC_EN | NAU8821_FLL_LOOP_FTR_EN | + NAU8821_FLL_FTR_SW_MASK, + NAU8821_FLL_PDB_DAC_EN | NAU8821_FLL_LOOP_FTR_EN | + NAU8821_FLL_FTR_SW_FILTER); + regmap_update_bits(regmap, NAU8821_R09_FLL6, + NAU8821_SDM_EN | NAU8821_CUTOFF500, + NAU8821_SDM_EN | NAU8821_CUTOFF500); + } else { + /* disable FLL loop filter and cutoff frequency */ + regmap_update_bits(regmap, NAU8821_R08_FLL5, + NAU8821_FLL_PDB_DAC_EN | NAU8821_FLL_LOOP_FTR_EN | + NAU8821_FLL_FTR_SW_MASK, NAU8821_FLL_FTR_SW_ACCU); + regmap_update_bits(regmap, NAU8821_R09_FLL6, + NAU8821_SDM_EN | NAU8821_CUTOFF500, 0); + } +} + +/** + * nau8821_set_fll - FLL configuration of nau8821 + * @codec: codec component + * @freq_in: frequency of input clock source + * @freq_out: must be 256*Fs in order to achieve the best performance + * + * The FLL function can select BCLK or MCLK as the input clock source. + * + * Returns 0 if the parameters have been applied successfully + * or negative error code. + */ +static int nau8821_set_fll(struct snd_soc_component *component, + int pll_id, int source, unsigned int freq_in, unsigned int freq_out) +{ + struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); + struct nau8821_fll fll_set_param, *fll_param = &fll_set_param; + int ret, fs; + + fs = freq_out >> 8; + ret = nau8821_calc_fll_param(freq_in, fs, fll_param); + if (ret) { + dev_err(nau8821->dev, + "Unsupported input clock %d to output clock %d\n", + freq_in, freq_out); + return ret; + } + dev_dbg(nau8821->dev, + "mclk_src=%x ratio=%x fll_frac=%x fll_int=%x clk_ref_div=%x\n", + fll_param->mclk_src, fll_param->ratio, fll_param->fll_frac, + fll_param->fll_int, fll_param->clk_ref_div); + + nau8821_fll_apply(nau8821, fll_param); + mdelay(2); + regmap_update_bits(nau8821->regmap, NAU8821_R03_CLK_DIVIDER, + NAU8821_CLK_SRC_MASK, NAU8821_CLK_SRC_VCO); + + return 0; +} + +static void nau8821_configure_mclk_as_sysclk(struct regmap *regmap) +{ + regmap_update_bits(regmap, NAU8821_R03_CLK_DIVIDER, + NAU8821_CLK_SRC_MASK, NAU8821_CLK_SRC_MCLK); + regmap_update_bits(regmap, NAU8821_R09_FLL6, + NAU8821_DCO_EN, 0); + /* Make DSP operate as default setting for power saving. */ + regmap_update_bits(regmap, NAU8821_R04_FLL1, + NAU8821_ICTRL_LATCH_MASK, 0); +} + +static int nau8821_configure_sysclk(struct nau8821 *nau8821, + int clk_id, unsigned int freq) +{ + struct regmap *regmap = nau8821->regmap; + + switch (clk_id) { + case NAU8821_CLK_DIS: + /* Clock provided externally and disable internal VCO clock */ + nau8821_configure_mclk_as_sysclk(regmap); + break; + case NAU8821_CLK_MCLK: + nau8821_configure_mclk_as_sysclk(regmap); + /* MCLK not changed by clock tree */ + regmap_update_bits(regmap, NAU8821_R03_CLK_DIVIDER, + NAU8821_CLK_MCLK_SRC_MASK, 0); + break; + case NAU8821_CLK_INTERNAL: + if (nau8821_is_jack_inserted(regmap)) { + regmap_update_bits(regmap, NAU8821_R09_FLL6, + NAU8821_DCO_EN, NAU8821_DCO_EN); + regmap_update_bits(regmap, NAU8821_R03_CLK_DIVIDER, + NAU8821_CLK_SRC_MASK, NAU8821_CLK_SRC_VCO); + /* Decrease the VCO frequency and make DSP operate + * as default setting for power saving. + */ + regmap_update_bits(regmap, NAU8821_R03_CLK_DIVIDER, + NAU8821_CLK_MCLK_SRC_MASK, 0xf); + regmap_update_bits(regmap, NAU8821_R04_FLL1, + NAU8821_ICTRL_LATCH_MASK | + NAU8821_FLL_RATIO_MASK, 0x10); + regmap_update_bits(regmap, NAU8821_R09_FLL6, + NAU8821_SDM_EN, NAU8821_SDM_EN); + } + break; + case NAU8821_CLK_FLL_MCLK: + /* Higher FLL reference input frequency can only set lower + * gain error, such as 0000 for input reference from MCLK + * 12.288Mhz. + */ + regmap_update_bits(regmap, NAU8821_R06_FLL3, + NAU8821_FLL_CLK_SRC_MASK | NAU8821_GAIN_ERR_MASK, + NAU8821_FLL_CLK_SRC_MCLK | 0); + break; + case NAU8821_CLK_FLL_BLK: + /* If FLL reference input is from low frequency source, + * higher error gain can apply such as 0xf which has + * the most sensitive gain error correction threshold, + * Therefore, FLL has the most accurate DCO to + * target frequency. + */ + regmap_update_bits(regmap, NAU8821_R06_FLL3, + NAU8821_FLL_CLK_SRC_MASK | NAU8821_GAIN_ERR_MASK, + NAU8821_FLL_CLK_SRC_BLK | + (0xf << NAU8821_GAIN_ERR_SFT)); + break; + case NAU8821_CLK_FLL_FS: + /* If FLL reference input is from low frequency source, + * higher error gain can apply such as 0xf which has + * the most sensitive gain error correction threshold, + * Therefore, FLL has the most accurate DCO to + * target frequency. + */ + regmap_update_bits(regmap, NAU8821_R06_FLL3, + NAU8821_FLL_CLK_SRC_MASK | NAU8821_GAIN_ERR_MASK, + NAU8821_FLL_CLK_SRC_FS | + (0xf << NAU8821_GAIN_ERR_SFT)); + break; + default: + dev_err(nau8821->dev, "Invalid clock id (%d)\n", clk_id); + return -EINVAL; + } + nau8821->clk_id = clk_id; + dev_dbg(nau8821->dev, "Sysclk is %dHz and clock id is %d\n", freq, + nau8821->clk_id); + + return 0; +} + +static int nau8821_set_sysclk(struct snd_soc_component *component, int clk_id, + int source, unsigned int freq, int dir) +{ + struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); + + return nau8821_configure_sysclk(nau8821, clk_id, freq); +} + +static int nau8821_resume_setup(struct nau8821 *nau8821) +{ + struct regmap *regmap = nau8821->regmap; + + /* Close clock when jack type detection at manual mode */ + nau8821_configure_sysclk(nau8821, NAU8821_CLK_DIS, 0); + if (nau8821->irq) { + /* Clear all interruption status */ + nau8821_int_status_clear_all(regmap); + + /* Enable both insertion and ejection interruptions, and then + * bypass de-bounce circuit. + */ + regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK, + NAU8821_IRQ_EJECT_EN | NAU8821_IRQ_INSERT_EN, 0); + regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL, + NAU8821_JACK_DET_DB_BYPASS, + NAU8821_JACK_DET_DB_BYPASS); + regmap_update_bits(regmap, NAU8821_R12_INTERRUPT_DIS_CTRL, + NAU8821_IRQ_INSERT_DIS | NAU8821_IRQ_EJECT_DIS, 0); + } + + return 0; +} + +static int nau8821_set_bias_level(struct snd_soc_component *component, + enum snd_soc_bias_level level) +{ + struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); + struct regmap *regmap = nau8821->regmap; + + switch (level) { + case SND_SOC_BIAS_ON: + break; + + case SND_SOC_BIAS_PREPARE: + break; + + case SND_SOC_BIAS_STANDBY: + /* Setup codec configuration after resume */ + if (snd_soc_component_get_bias_level(component) == + SND_SOC_BIAS_OFF) + nau8821_resume_setup(nau8821); + break; + + case SND_SOC_BIAS_OFF: + /* HPL/HPR short to ground */ + regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL, + NAU8821_SPKR_DWN1R | NAU8821_SPKR_DWN1L, 0); + if (nau8821->irq) { + /* Reset the configuration of jack type for detection. + * Detach 2kOhm Resistors from MICBIAS to MICGND1/2. + */ + regmap_update_bits(regmap, NAU8821_R74_MIC_BIAS, + NAU8821_MICBIAS_JKR2, 0); + /* Turn off all interruptions before system shutdown. + * Keep theinterruption quiet before resume + * setup completes. + */ + regmap_write(regmap, + NAU8821_R12_INTERRUPT_DIS_CTRL, 0xffff); + regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK, + NAU8821_IRQ_EJECT_EN | NAU8821_IRQ_INSERT_EN, + NAU8821_IRQ_EJECT_EN | NAU8821_IRQ_INSERT_EN); + } + break; + default: + break; + } + + return 0; +} + +static int __maybe_unused nau8821_suspend(struct snd_soc_component *component) +{ + struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); + + if (nau8821->irq) + disable_irq(nau8821->irq); + snd_soc_component_force_bias_level(component, SND_SOC_BIAS_OFF); + /* Power down codec power; don't support button wakeup */ + snd_soc_component_disable_pin(component, "MICBIAS"); + snd_soc_dapm_sync(nau8821->dapm); + regcache_cache_only(nau8821->regmap, true); + regcache_mark_dirty(nau8821->regmap); + + return 0; +} + +static int __maybe_unused nau8821_resume(struct snd_soc_component *component) +{ + struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); + + regcache_cache_only(nau8821->regmap, false); + regcache_sync(nau8821->regmap); + if (nau8821->irq) + enable_irq(nau8821->irq); + + return 0; +} + +static const struct snd_soc_component_driver nau8821_component_driver = { + .probe = nau8821_component_probe, + .set_sysclk = nau8821_set_sysclk, + .set_pll = nau8821_set_fll, + .set_bias_level = nau8821_set_bias_level, + .suspend = nau8821_suspend, + .resume = nau8821_resume, + .controls = nau8821_controls, + .num_controls = ARRAY_SIZE(nau8821_controls), + .dapm_widgets = nau8821_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(nau8821_dapm_widgets), + .dapm_routes = nau8821_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(nau8821_dapm_routes), + .suspend_bias_off = 1, + .non_legacy_dai_naming = 1, + .idle_bias_on = 1, + .use_pmdown_time = 1, + .endianness = 1, +}; + +/** + * nau8821_enable_jack_detect - Specify a jack for event reporting + * + * @component: component to register the jack with + * @jack: jack to use to report headset and button events on + * + * After this function has been called the headset insert/remove and button + * events will be routed to the given jack. Jack can be null to stop + * reporting. + */ +int nau8821_enable_jack_detect(struct snd_soc_component *component, + struct snd_soc_jack *jack) +{ + struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component); + int ret; + + nau8821->jack = jack; + /* Initiate jack detection work queue */ + INIT_WORK(&nau8821->jdet_work, nau8821_jdet_work); + ret = devm_request_threaded_irq(nau8821->dev, nau8821->irq, NULL, + nau8821_interrupt, IRQF_TRIGGER_LOW | IRQF_ONESHOT, + "nau8821", nau8821); + if (ret) { + dev_err(nau8821->dev, "Cannot request irq %d (%d)\n", + nau8821->irq, ret); + return ret; + } + + return ret; +} +EXPORT_SYMBOL_GPL(nau8821_enable_jack_detect); + +static void nau8821_reset_chip(struct regmap *regmap) +{ + regmap_write(regmap, NAU8821_R00_RESET, 0xffff); + regmap_write(regmap, NAU8821_R00_RESET, 0xffff); +} + +static void nau8821_print_device_properties(struct nau8821 *nau8821) +{ + struct device *dev = nau8821->dev; + + dev_dbg(dev, "jkdet-enable: %d\n", nau8821->jkdet_enable); + dev_dbg(dev, "jkdet-pull-enable: %d\n", nau8821->jkdet_pull_enable); + dev_dbg(dev, "jkdet-pull-up: %d\n", nau8821->jkdet_pull_up); + dev_dbg(dev, "jkdet-polarity: %d\n", nau8821->jkdet_polarity); + dev_dbg(dev, "micbias-voltage: %d\n", nau8821->micbias_voltage); + dev_dbg(dev, "vref-impedance: %d\n", nau8821->vref_impedance); + dev_dbg(dev, "jack-insert-debounce: %d\n", + nau8821->jack_insert_debounce); + dev_dbg(dev, "jack-eject-debounce: %d\n", + nau8821->jack_eject_debounce); + dev_dbg(dev, "dmic-clk-threshold: %d\n", + nau8821->dmic_clk_threshold); +} + +static int nau8821_read_device_properties(struct device *dev, + struct nau8821 *nau8821) +{ + int ret; + + nau8821->jkdet_enable = device_property_read_bool(dev, + "nuvoton,jkdet-enable"); + nau8821->jkdet_pull_enable = device_property_read_bool(dev, + "nuvoton,jkdet-pull-enable"); + nau8821->jkdet_pull_up = device_property_read_bool(dev, + "nuvoton,jkdet-pull-up"); + ret = device_property_read_u32(dev, "nuvoton,jkdet-polarity", + &nau8821->jkdet_polarity); + if (ret) + nau8821->jkdet_polarity = 1; + ret = device_property_read_u32(dev, "nuvoton,micbias-voltage", + &nau8821->micbias_voltage); + if (ret) + nau8821->micbias_voltage = 6; + ret = device_property_read_u32(dev, "nuvoton,vref-impedance", + &nau8821->vref_impedance); + if (ret) + nau8821->vref_impedance = 2; + ret = device_property_read_u32(dev, "nuvoton,jack-insert-debounce", + &nau8821->jack_insert_debounce); + if (ret) + nau8821->jack_insert_debounce = 7; + ret = device_property_read_u32(dev, "nuvoton,jack-eject-debounce", + &nau8821->jack_eject_debounce); + if (ret) + nau8821->jack_eject_debounce = 0; + ret = device_property_read_u32(dev, "nuvoton,dmic-clk-threshold", + &nau8821->dmic_clk_threshold); + if (ret) + nau8821->dmic_clk_threshold = 3072000; + + return 0; +} + +static void nau8821_init_regs(struct nau8821 *nau8821) +{ + struct regmap *regmap = nau8821->regmap; + + /* Enable Bias/Vmid */ + regmap_update_bits(regmap, NAU8821_R66_BIAS_ADJ, + NAU8821_BIAS_VMID, NAU8821_BIAS_VMID); + regmap_update_bits(regmap, NAU8821_R76_BOOST, + NAU8821_GLOBAL_BIAS_EN, NAU8821_GLOBAL_BIAS_EN); + /* VMID Tieoff setting and enable TESTDAC. + * This sets the analog DAC inputs to a '0' input signal to avoid + * any glitches due to power up transients in both the analog and + * digital DAC circuit. + */ + regmap_update_bits(regmap, NAU8821_R66_BIAS_ADJ, + NAU8821_BIAS_VMID_SEL_MASK | NAU8821_BIAS_TESTDAC_EN, + (nau8821->vref_impedance << NAU8821_BIAS_VMID_SEL_SFT) | + NAU8821_BIAS_TESTDAC_EN); + /* Disable short Frame Sync detection logic */ + regmap_update_bits(regmap, NAU8821_R1E_LEFT_TIME_SLOT, + NAU8821_DIS_FS_SHORT_DET, NAU8821_DIS_FS_SHORT_DET); + /* Disable Boost Driver, Automatic Short circuit protection enable */ + regmap_update_bits(regmap, NAU8821_R76_BOOST, + NAU8821_PRECHARGE_DIS | NAU8821_HP_BOOST_DIS | + NAU8821_HP_BOOST_G_DIS | NAU8821_SHORT_SHUTDOWN_EN, + NAU8821_PRECHARGE_DIS | NAU8821_HP_BOOST_DIS | + NAU8821_HP_BOOST_G_DIS | NAU8821_SHORT_SHUTDOWN_EN); + /* Class G timer 64ms */ + regmap_update_bits(regmap, NAU8821_R4B_CLASSG_CTRL, + NAU8821_CLASSG_TIMER_MASK, + 0x20 << NAU8821_CLASSG_TIMER_SFT); + /* Class AB bias current to 2x, DAC Capacitor enable MSB/LSB */ + regmap_update_bits(regmap, NAU8821_R6A_ANALOG_CONTROL_2, + NAU8821_HP_NON_CLASSG_CURRENT_2xADJ | + NAU8821_DAC_CAPACITOR_MSB | NAU8821_DAC_CAPACITOR_LSB, + NAU8821_HP_NON_CLASSG_CURRENT_2xADJ | + NAU8821_DAC_CAPACITOR_MSB | NAU8821_DAC_CAPACITOR_LSB); + /* Disable DACR/L power */ + regmap_update_bits(regmap, NAU8821_R80_CHARGE_PUMP, + NAU8821_POWER_DOWN_DACR | NAU8821_POWER_DOWN_DACL, 0); + /* DAC clock delay 2ns, VREF */ + regmap_update_bits(regmap, NAU8821_R73_RDAC, + NAU8821_DAC_CLK_DELAY_MASK | NAU8821_DAC_VREF_MASK, + (0x2 << NAU8821_DAC_CLK_DELAY_SFT) | + (0x3 << NAU8821_DAC_VREF_SFT)); + + regmap_update_bits(regmap, NAU8821_R74_MIC_BIAS, + NAU8821_MICBIAS_VOLTAGE_MASK, nau8821->micbias_voltage); + /* Default oversampling/decimations settings are unusable + * (audible hiss). Set it to something better. + */ + regmap_update_bits(regmap, NAU8821_R2B_ADC_RATE, + NAU8821_ADC_SYNC_DOWN_MASK, NAU8821_ADC_SYNC_DOWN_64); + regmap_update_bits(regmap, NAU8821_R2C_DAC_CTRL1, + NAU8821_DAC_OVERSAMPLE_MASK, NAU8821_DAC_OVERSAMPLE_64); +} + +static int nau8821_setup_irq(struct nau8821 *nau8821) +{ + struct regmap *regmap = nau8821->regmap; + + /* Jack detection */ + regmap_update_bits(regmap, NAU8821_R1A_GPIO12_CTRL, + NAU8821_JKDET_OUTPUT_EN, + nau8821->jkdet_enable ? 0 : NAU8821_JKDET_OUTPUT_EN); + regmap_update_bits(regmap, NAU8821_R1A_GPIO12_CTRL, + NAU8821_JKDET_PULL_EN, + nau8821->jkdet_pull_enable ? 0 : NAU8821_JKDET_PULL_EN); + regmap_update_bits(regmap, NAU8821_R1A_GPIO12_CTRL, + NAU8821_JKDET_PULL_UP, + nau8821->jkdet_pull_up ? NAU8821_JKDET_PULL_UP : 0); + regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL, + NAU8821_JACK_POLARITY, + /* jkdet_polarity - 1 is for active-low */ + nau8821->jkdet_polarity ? 0 : NAU8821_JACK_POLARITY); + regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL, + NAU8821_JACK_INSERT_DEBOUNCE_MASK, + nau8821->jack_insert_debounce << + NAU8821_JACK_INSERT_DEBOUNCE_SFT); + regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL, + NAU8821_JACK_EJECT_DEBOUNCE_MASK, + nau8821->jack_eject_debounce << + NAU8821_JACK_EJECT_DEBOUNCE_SFT); + /* Pull up IRQ pin */ + regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK, + NAU8821_IRQ_PIN_PULL_UP | NAU8821_IRQ_PIN_PULL_EN | + NAU8821_IRQ_OUTPUT_EN, NAU8821_IRQ_PIN_PULL_UP | + NAU8821_IRQ_PIN_PULL_EN | NAU8821_IRQ_OUTPUT_EN); + /* Disable interruption before codec initiation done */ + /* Mask unneeded IRQs: 1 - disable, 0 - enable */ + regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK, 0x3f5, 0x3f5); + + return 0; +} + +static int nau8821_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct device *dev = &i2c->dev; + struct nau8821 *nau8821 = dev_get_platdata(&i2c->dev); + int ret, value; + + if (!nau8821) { + nau8821 = devm_kzalloc(dev, sizeof(*nau8821), GFP_KERNEL); + if (!nau8821) + return -ENOMEM; + nau8821_read_device_properties(dev, nau8821); + } + i2c_set_clientdata(i2c, nau8821); + + nau8821->regmap = devm_regmap_init_i2c(i2c, &nau8821_regmap_config); + if (IS_ERR(nau8821->regmap)) + return PTR_ERR(nau8821->regmap); + + nau8821->dev = dev; + nau8821->irq = i2c->irq; + nau8821_print_device_properties(nau8821); + + nau8821_reset_chip(nau8821->regmap); + ret = regmap_read(nau8821->regmap, NAU8821_R58_I2C_DEVICE_ID, &value); + if (ret) { + dev_err(dev, "Failed to read device id (%d)\n", ret); + return ret; + } + nau8821_init_regs(nau8821); + + if (i2c->irq) + nau8821_setup_irq(nau8821); + + ret = devm_snd_soc_register_component(&i2c->dev, + &nau8821_component_driver, &nau8821_dai, 1); + + return ret; +} + +static int nau8821_i2c_remove(struct i2c_client *i2c_client) +{ + struct nau8821 *nau8821 = i2c_get_clientdata(i2c_client); + + devm_free_irq(nau8821->dev, nau8821->irq, nau8821); + + return 0; +} + +static const struct i2c_device_id nau8821_i2c_ids[] = { + { "nau8821", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, nau8821_i2c_ids); + +#ifdef CONFIG_OF +static const struct of_device_id nau8821_of_ids[] = { + { .compatible = "nuvoton,nau8821", }, + {} +}; +MODULE_DEVICE_TABLE(of, nau8821_of_ids); +#endif + +#ifdef CONFIG_ACPI +static const struct acpi_device_id nau8821_acpi_match[] = { + { "NVTN2020", 0 }, + {}, +}; +MODULE_DEVICE_TABLE(acpi, nau8821_acpi_match); +#endif + +static struct i2c_driver nau8821_driver = { + .driver = { + .name = "nau8821", + .of_match_table = of_match_ptr(nau8821_of_ids), + .acpi_match_table = ACPI_PTR(nau8821_acpi_match), + }, + .probe = nau8821_i2c_probe, + .remove = nau8821_i2c_remove, + .id_table = nau8821_i2c_ids, +}; +module_i2c_driver(nau8821_driver); + +MODULE_DESCRIPTION("ASoC nau8821 driver"); +MODULE_AUTHOR("John Hsu kchsu0@nuvoton.com"); +MODULE_AUTHOR("Seven Lee wtli@nuvoton.com"); +MODULE_LICENSE("GPL"); diff --git a/sound/soc/codecs/nau8821.h b/sound/soc/codecs/nau8821.h new file mode 100644 index 000000000000..a92edfeb9d3a --- /dev/null +++ b/sound/soc/codecs/nau8821.h @@ -0,0 +1,533 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * NAU88L21 ALSA SoC audio driver + * + * Copyright 2021 Nuvoton Technology Corp. + * Author: John Hsu kchsu0@nuvoton.com + * Co-author: Seven Lee wtli@nuvoton.com + */ + +#ifndef __NAU8821_H__ +#define __NAU8821_H__ + +#define NAU8821_R00_RESET 0x00 +#define NAU8821_R01_ENA_CTRL 0x01 +#define NAU8821_R03_CLK_DIVIDER 0x03 +#define NAU8821_R04_FLL1 0x04 +#define NAU8821_R05_FLL2 0x05 +#define NAU8821_R06_FLL3 0x06 +#define NAU8821_R07_FLL4 0x07 +#define NAU8821_R08_FLL5 0x08 +#define NAU8821_R09_FLL6 0x09 +#define NAU8821_R0A_FLL7 0x0a +#define NAU8821_R0B_FLL8 0x0b +#define NAU8821_R0D_JACK_DET_CTRL 0x0d +#define NAU8821_R0F_INTERRUPT_MASK 0x0f +#define NAU8821_R10_IRQ_STATUS 0x10 +#define NAU8821_R11_INT_CLR_KEY_STATUS 0x11 +#define NAU8821_R12_INTERRUPT_DIS_CTRL 0x12 +#define NAU8821_R13_DMIC_CTRL 0x13 +#define NAU8821_R1A_GPIO12_CTRL 0x1a +#define NAU8821_R1B_TDM_CTRL 0x1b +#define NAU8821_R1C_I2S_PCM_CTRL1 0x1c +#define NAU8821_R1D_I2S_PCM_CTRL2 0x1d +#define NAU8821_R1E_LEFT_TIME_SLOT 0x1e +#define NAU8821_R1F_RIGHT_TIME_SLOT 0x1f +#define NAU8821_R21_BIQ0_COF1 0x21 +#define NAU8821_R22_BIQ0_COF2 0x22 +#define NAU8821_R23_BIQ0_COF3 0x23 +#define NAU8821_R24_BIQ0_COF4 0x24 +#define NAU8821_R25_BIQ0_COF5 0x25 +#define NAU8821_R26_BIQ0_COF6 0x26 +#define NAU8821_R27_BIQ0_COF7 0x27 +#define NAU8821_R28_BIQ0_COF8 0x28 +#define NAU8821_R29_BIQ0_COF9 0x29 +#define NAU8821_R2A_BIQ0_COF10 0x2a +#define NAU8821_R2B_ADC_RATE 0x2b +#define NAU8821_R2C_DAC_CTRL1 0x2c +#define NAU8821_R2D_DAC_CTRL2 0x2d +#define NAU8821_R2F_DAC_DGAIN_CTRL 0x2f +#define NAU8821_R30_ADC_DGAIN_CTRL 0x30 +#define NAU8821_R31_MUTE_CTRL 0x31 +#define NAU8821_R32_HSVOL_CTRL 0x32 +#define NAU8821_R34_DACR_CTRL 0x34 +#define NAU8821_R35_ADC_DGAIN_CTRL1 0x35 +#define NAU8821_R36_ADC_DRC_KNEE_IP12 0x36 +#define NAU8821_R37_ADC_DRC_KNEE_IP34 0x37 +#define NAU8821_R38_ADC_DRC_SLOPES 0x38 +#define NAU8821_R39_ADC_DRC_ATKDCY 0x39 +#define NAU8821_R3A_DAC_DRC_KNEE_IP12 0x3a +#define NAU8821_R3B_DAC_DRC_KNEE_IP34 0x3b +#define NAU8821_R3C_DAC_DRC_SLOPES 0x3c +#define NAU8821_R3D_DAC_DRC_ATKDCY 0x3d +#define NAU8821_R41_BIQ1_COF1 0x41 +#define NAU8821_R42_BIQ1_COF2 0x42 +#define NAU8821_R43_BIQ1_COF3 0x43 +#define NAU8821_R44_BIQ1_COF4 0x44 +#define NAU8821_R45_BIQ1_COF5 0x45 +#define NAU8821_R46_BIQ1_COF6 0x46 +#define NAU8821_R47_BIQ1_COF7 0x47 +#define NAU8821_R48_BIQ1_COF8 0x48 +#define NAU8821_R49_BIQ1_COF9 0x49 +#define NAU8821_R4A_BIQ1_COF10 0x4a +#define NAU8821_R4B_CLASSG_CTRL 0x4b +#define NAU8821_R4C_IMM_MODE_CTRL 0x4c +#define NAU8821_R4D_IMM_RMS_L 0x4d +#define NAU8821_R4E_FUSE_CTRL2 0x4e +#define NAU8821_R4F_FUSE_CTRL3 0x4f +#define NAU8821_R51_FUSE_CTRL1 0x51 +#define NAU8821_R53_OTPDOUT_1 0x53 +#define NAU8821_R54_OTPDOUT_2 0x54 +#define NAU8821_R55_MISC_CTRL 0x55 +#define NAU8821_R58_I2C_DEVICE_ID 0x58 +#define NAU8821_R59_SARDOUT_RAM_STATUS 0x59 +#define NAU8821_R5A_SOFTWARE_RST 0x5a +#define NAU8821_R66_BIAS_ADJ 0x66 +#define NAU8821_R68_TRIM_SETTINGS 0x68 +#define NAU8821_R69_ANALOG_CONTROL_1 0x69 +#define NAU8821_R6A_ANALOG_CONTROL_2 0x6a +#define NAU8821_R6B_PGA_MUTE 0x6b +#define NAU8821_R71_ANALOG_ADC_1 0x71 +#define NAU8821_R72_ANALOG_ADC_2 0x72 +#define NAU8821_R73_RDAC 0x73 +#define NAU8821_R74_MIC_BIAS 0x74 +#define NAU8821_R76_BOOST 0x76 +#define NAU8821_R77_FEPGA 0x77 +#define NAU8821_R7E_PGA_GAIN 0x7e +#define NAU8821_R7F_POWER_UP_CONTROL 0x7f +#define NAU8821_R80_CHARGE_PUMP 0x80 +#define NAU8821_R81_CHARGE_PUMP_INPUT_READ 0x81 +#define NAU8821_R82_GENERAL_STATUS 0x82 +#define NAU8821_REG_MAX NAU8821_R82_GENERAL_STATUS +/* 16-bit control register address, and 16-bits control register data */ +#define NAU8821_REG_ADDR_LEN 16 +#define NAU8821_REG_DATA_LEN 16 + +/* ENA_CTRL (0x01) */ +#define NAU8821_CLK_DAC_INV_SFT 14 +#define NAU8821_CLK_DAC_INV (0x1 << NAU8821_CLK_DAC_INV) +#define NAU8821_EN_DACR_SFT 11 +#define NAU8821_EN_DACR (0x1 << NAU8821_EN_DACR_SFT) +#define NAU8821_EN_DACL_SFT 10 +#define NAU8821_EN_DACL (0x1 << NAU8821_EN_DACL_SFT) +#define NAU8821_EN_ADCR_SFT 9 +#define NAU8821_EN_ADCR (0x1 << NAU8821_EN_ADCR_SFT) +#define NAU8821_EN_ADCL_SFT 8 +#define NAU8821_EN_ADCL (0x1 << NAU8821_EN_ADCL_SFT) +#define NAU8821_EN_ADC_CLK_SFT 7 +#define NAU8821_EN_ADC_CLK (0x1 << NAU8821_EN_ADC_CLK_SFT) +#define NAU8821_EN_DAC_CLK_SFT 6 +#define NAU8821_EN_DAC_CLK (0x1 << NAU8821_EN_DAC_CLK_SFT) +#define NAU8821_EN_I2S_CLK_SFT 4 +#define NAU8821_EN_I2S_CLK (0x1 << NAU8821_EN_I2S_CLK_SFT) +#define NAU8821_EN_DRC_CLK_SFT 0 +#define NAU8821_EN_DRC_CLK (0x1 << NAU8821_EN_DRC_CLK_SFT) + +/* CLK_DIVIDER (0x03) */ +#define NAU8821_CLK_SRC_SFT 15 +#define NAU8821_CLK_SRC_MASK (0x1 << NAU8821_CLK_SRC_SFT) +#define NAU8821_CLK_SRC_VCO (0x1 << NAU8821_CLK_SRC_SFT) +#define NAU8821_CLK_SRC_MCLK (0x0 << NAU8821_CLK_SRC_SFT) +#define NAU8821_CLK_CODEC_SRC_SFT 13 +#define NAU8821_CLK_CODEC_SRC_MASK (0x1 << NAU8821_CLK_CODEC_SRC_SFT) +#define NAU8821_CLK_CODEC_SRC_VCO (0x1 << NAU8821_CLK_CODEC_SRC_SFT) +#define NAU8821_CLK_CODEC_SRC_MCLK (0x0 << NAU8821_CLK_CODEC_SRC_SFT) +#define NAU8821_CLK_ADC_SRC_SFT 6 +#define NAU8821_CLK_ADC_SRC_MASK (0x3 << NAU8821_CLK_ADC_SRC_SFT) +#define NAU8821_CLK_DAC_SRC_SFT 4 +#define NAU8821_CLK_DAC_SRC_MASK (0x3 << NAU8821_CLK_DAC_SRC_SFT) +#define NAU8821_CLK_MCLK_SRC_MASK 0xf + +/* FLL1 (0x04) */ +#define NAU8821_ICTRL_LATCH_SFT 10 +#define NAU8821_ICTRL_LATCH_MASK (0x7 << NAU8821_ICTRL_LATCH_SFT) +#define NAU8821_FLL_RATIO_MASK 0x7f + +/* FLL3 (0x06) */ +#define NAU8821_GAIN_ERR_SFT 12 +#define NAU8821_GAIN_ERR_MASK (0xf << NAU8821_GAIN_ERR_SFT) +#define NAU8821_FLL_CLK_SRC_SFT 10 +#define NAU8821_FLL_CLK_SRC_MASK (0x3 << NAU8821_FLL_CLK_SRC_SFT) +#define NAU8821_FLL_CLK_SRC_FS (0x3 << NAU8821_FLL_CLK_SRC_SFT) +#define NAU8821_FLL_CLK_SRC_BLK (0x2 << NAU8821_FLL_CLK_SRC_SFT) +#define NAU8821_FLL_CLK_SRC_MCLK (0x0 << NAU8821_FLL_CLK_SRC_SFT) +#define NAU8821_FLL_INTEGER_MASK 0x3ff + +/* FLL4 (0x07) */ +#define NAU8821_HIGHBW_EN_SFT 15 +#define NAU8821_HIGHBW_EN (0x1 << NAU8821_HIGHBW_EN_SFT) +#define NAU8821_FLL_REF_DIV_SFT 10 +#define NAU8821_FLL_REF_DIV_MASK (0x3 << NAU8821_FLL_REF_DIV_SFT) + +/* FLL5 (0x08) */ +#define NAU8821_FLL_PDB_DAC_EN (0x1 << 15) +#define NAU8821_FLL_LOOP_FTR_EN (0x1 << 14) +#define NAU8821_FLL_CLK_SW_SFT 13 +#define NAU8821_FLL_CLK_SW_MASK (0x1 << NAU8821_FLL_CLK_SW_SFT) +#define NAU8821_FLL_CLK_SW_N2 (0x1 << NAU8821_FLL_CLK_SW_SFT) +#define NAU8821_FLL_CLK_SW_REF (0x0 << NAU8821_FLL_CLK_SW_SFT) +#define NAU8821_FLL_FTR_SW_SFT 12 +#define NAU8821_FLL_FTR_SW_MASK (0x1 << NAU8821_FLL_FTR_SW_SFT) +#define NAU8821_FLL_FTR_SW_ACCU (0x1 << NAU8821_FLL_FTR_SW_SFT) +#define NAU8821_FLL_FTR_SW_FILTER (0x0 << NAU8821_FLL_FTR_SW_SFT) + +/* FLL6 (0x09) */ +#define NAU8821_DCO_EN (0x1 << 15) +#define NAU8821_SDM_EN (0x1 << 14) +#define NAU8821_CUTOFF500 (0x1 << 13) + +/* FLL7 (0x0a) */ +#define NAU8821_FLL_FRACH_MASK 0xff + +/* FLL8 (0x0b) */ +#define NAU8821_FLL_FRACL_MASK 0xffff + +/* JACK_DET_CTRL (0x0d) */ +/* 0 - open, 1 - short to GND */ +#define NAU8821_SPKR_DWN1R_SFT 15 +#define NAU8821_SPKR_DWN1R (0x1 << NAU8821_SPKR_DWN1R_SFT) +#define NAU8821_SPKR_DWN1L_SFT 14 +#define NAU8821_SPKR_DWN1L (0x1 << NAU8821_SPKR_DWN1L_SFT) +#define NAU8821_JACK_DET_RESTART (0x1 << 9) +#define NAU8821_JACK_DET_DB_BYPASS (0x1 << 8) +#define NAU8821_JACK_INSERT_DEBOUNCE_SFT 5 +#define NAU8821_JACK_INSERT_DEBOUNCE_MASK (0x7 << NAU8821_JACK_INSERT_DEBOUNCE_SFT) +#define NAU8821_JACK_EJECT_DEBOUNCE_SFT 2 +#define NAU8821_JACK_EJECT_DEBOUNCE_MASK (0x7 << NAU8821_JACK_EJECT_DEBOUNCE_SFT) +#define NAU8821_JACK_POLARITY (0x1 << 1) /* 0 - active low, 1 - active high */ + +/* INTERRUPT_MASK (0x0f) */ +#define NAU8821_IRQ_PIN_PULL_UP (0x1 << 14) +#define NAU8821_IRQ_PIN_PULL_EN (0x1 << 13) +#define NAU8821_IRQ_OUTPUT_EN (0x1 << 11) +#define NAU8821_IRQ_RMS_EN (0x1 << 8) +#define NAU8821_IRQ_KEY_RELEASE_EN (0x1 << 7) +#define NAU8821_IRQ_KEY_PRESS_EN (0x1 << 6) +#define NAU8821_IRQ_MIC_DET_EN (0x1 << 4) +#define NAU8821_IRQ_EJECT_EN (0x1 << 2) +#define NAU8821_IRQ_INSERT_EN 0x1 + +/* IRQ_STATUS (0x10) */ +#define NAU8821_SHORT_CIRCUIT_IRQ (0x1 << 9) +#define NAU8821_IMPEDANCE_MEAS_IRQ (0x1 << 8) +#define NAU8821_KEY_IRQ_SFT 6 +#define NAU8821_KEY_IRQ_MASK (0x3 << NAU8821_KEY_IRQ_SFT) +#define NAU8821_KEY_RELEASE_IRQ (0x2 << NAU8821_KEY_IRQ_SFT) +#define NAU8821_KEY_SHORT_PRESS_IRQ (0x1 << NAU8821_KEY_IRQ_SFT) +#define NAU8821_MIC_DETECT_IRQ (0x1 << 4) +#define NAU8821_JACK_EJECT_IRQ_MASK (0x3 << 2) +#define NAU8821_JACK_EJECT_DETECTED (0x1 << 2) +#define NAU8821_JACK_INSERT_IRQ_MASK 0x3 +#define NAU8821_JACK_INSERT_DETECTED 0x1 + +/* INTERRUPT_DIS_CTRL (0x12) */ +#define NAU8821_IRQ_KEY_RELEASE_DIS (0x1 << 7) +#define NAU8821_IRQ_KEY_PRESS_DIS (0x1 << 6) +#define NAU8821_IRQ_MIC_DIS (0x1 << 4) +#define NAU8821_IRQ_EJECT_DIS (0x1 << 2) +#define NAU8821_IRQ_INSERT_DIS 0x1 + +/* DMIC_CTRL (0x13) */ +#define NAU8821_DMIC_DS_SFT 7 +#define NAU8821_DMIC_DS_MASK (0x1 << NAU8821_DMIC_DS_SFT) +#define NAU8821_DMIC_DS_HIGH (0x1 << NAU8821_DMIC_DS_SFT) +#define NAU8821_DMIC_DS_LOW (0x0 << NAU8821_DMIC_DS_SFT) +#define NAU8821_DMIC_SRC_SFT 1 +#define NAU8821_DMIC_SRC_MASK (0x3 << NAU8821_DMIC_SRC_SFT) +#define NAU8821_CLK_DMIC_SRC (0x2 << NAU8821_DMIC_SRC_SFT) +#define NAU8821_DMIC_EN_SFT 0 + +/* GPIO12_CTRL (0x1a) */ +#define NAU8821_JKDET_PULL_UP (0x1 << 11) /* 0 - pull down, 1 - pull up */ +#define NAU8821_JKDET_PULL_EN (0x1 << 9) /* 0 - enable pull, 1 - disable */ +#define NAU8821_JKDET_OUTPUT_EN (0x1 << 8) /* 0 - enable input, 1 - enable output */ + +/* TDM_CTRL (0x1b) */ +#define NAU8821_TDM_EN_SFT 15 +#define NAU8821_TDM_EN (0x1 << NAU8821_TDM_EN_SFT) +#define NAU8821_ADCPHS_SFT 13 +#define NAU8821_DACL_CH_SFT 7 +#define NAU8821_DACL_CH_MASK (0x7 << NAU8821_DACL_CH_SFT) +#define NAU8821_DACR_CH_SFT 4 +#define NAU8821_DACR_CH_MASK (0x7 << NAU8821_DACR_CH_SFT) +#define NAU8821_ADCL_CH_SFT 2 +#define NAU8821_ADCL_CH_MASK (0x3 << NAU8821_ADCL_CH_SFT) +#define NAU8821_ADCR_CH_SFT 0 +#define NAU8821_ADCR_CH_MASK 0x3 + +/* I2S_PCM_CTRL1 (0x1c) */ +#define NAU8821_I2S_BP_SFT 7 +#define NAU8821_I2S_BP_MASK (0x1 << NAU8821_I2S_BP_SFT) +#define NAU8821_I2S_BP_INV (0x1 << NAU8821_I2S_BP_SFT) +#define NAU8821_I2S_PCMB_SFT 6 +#define NAU8821_I2S_PCMB_MASK (0x1 << NAU8821_I2S_PCMB_SFT) +#define NAU8821_I2S_PCMB_EN (0x1 << NAU8821_I2S_PCMB_SFT) +#define NAU8821_I2S_DL_SFT 2 +#define NAU8821_I2S_DL_MASK (0x3 << NAU8821_I2S_DL_SFT) +#define NAU8821_I2S_DL_32 (0x3 << NAU8821_I2S_DL_SFT) +#define NAU8821_I2S_DL_24 (0x2 << NAU8821_I2S_DL_SFT) +#define NAU8821_I2S_DL_20 (0x1 << NAU8821_I2S_DL_SFT) +#define NAU8821_I2S_DL_16 (0x0 << NAU8821_I2S_DL_SFT) +#define NAU8821_I2S_DF_MASK 0x3 +#define NAU8821_I2S_DF_PCM_AB 0x3 +#define NAU8821_I2S_DF_I2S 0x2 +#define NAU8821_I2S_DF_LEFT 0x1 +#define NAU8821_I2S_DF_RIGTH 0x0 + +/* I2S_PCM_CTRL2 (0x1d) */ +#define NAU8821_I2S_TRISTATE_SFT 15 +#define NAU8821_I2S_TRISTATE (0x1 << NAU8821_I2S_TRISTATE_SFT) +#define NAU8821_I2S_LRC_DIV_SFT 12 +#define NAU8821_I2S_LRC_DIV_MASK (0x3 << NAU8821_I2S_LRC_DIV_SFT) +#define NAU8821_I2S_MS_SFT 3 +#define NAU8821_I2S_MS_MASK (0x1 << NAU8821_I2S_MS_SFT) +#define NAU8821_I2S_MS_MASTER (0x1 << NAU8821_I2S_MS_SFT) +#define NAU8821_I2S_MS_SLAVE (0x0 << NAU8821_I2S_MS_SFT) +#define NAU8821_I2S_BLK_DIV_MASK 0x7 + +/* LEFT_TIME_SLOT (0x1e) */ +#define NAU8821_TSLOT_L_OFFSET_MASK 0x3ff +#define NAU8821_DIS_FS_SHORT_DET (0x1 << 13) + +/* RIGHT_TIME_SLOT (0x1f) */ +#define NAU8821_TSLOT_R_OFFSET_MASK 0x3ff + +/* BIQ0_COF10 (0x2a) */ +#define NAU8821_BIQ0_ADC_EN_SFT 3 +#define NAU8821_BIQ0_ADC_EN_EN (0x1 << NAU8821_BIQ0_ADC_EN_SFT) + +/* ADC_RATE (0x2b) */ +#define NAU8821_ADC_SYNC_DOWN_SFT 0 +#define NAU8821_ADC_SYNC_DOWN_MASK 0x3 +#define NAU8821_ADC_SYNC_DOWN_256 0x3 +#define NAU8821_ADC_SYNC_DOWN_128 0x2 +#define NAU8821_ADC_SYNC_DOWN_64 0x1 +#define NAU8821_ADC_SYNC_DOWN_32 0x0 +#define NAU8821_ADC_L_SRC_SFT 15 +#define NAU8821_ADC_L_SRC_EN (0x1 << NAU8821_ADC_L_SRC_SFT) +#define NAU8821_ADC_R_SRC_SFT 14 +#define NAU8821_ADC_R_SRC_EN (0x1 << NAU8821_ADC_R_SRC_SFT) + +/* DAC_CTRL1 (0x2c) */ +#define NAU8821_DAC_OVERSAMPLE_SFT 0 +#define NAU8821_DAC_OVERSAMPLE_MASK 0x7 +#define NAU8821_DAC_OVERSAMPLE_32 0x4 +#define NAU8821_DAC_OVERSAMPLE_128 0x2 +#define NAU8821_DAC_OVERSAMPLE_256 0x1 +#define NAU8821_DAC_OVERSAMPLE_64 0x0 + +/* DAC_DGAIN_CTRL (0x2f) */ +#define NAU8821_DAC1_TO_DAC0_ST_SFT 8 +#define NAU8821_DAC1_TO_DAC0_ST_MASK (0xff << NAU8821_DAC1_TO_DAC0_ST_SFT) +#define NAU8821_DAC0_TO_DAC1_ST_SFT 0 +#define NAU8821_DAC0_TO_DAC1_ST_MASK 0xff + +/* MUTE_CTRL (0x31) */ +#define NAU8821_DAC_ZC_EN (0x1 << 12) +#define NAU8821_DAC_SOFT_MUTE (0x1 << 9) +#define NAU8821_ADC_ZC_EN (0x1 << 2) +#define NAU8821_ADC_SOFT_MUTE (0x1 << 1) + +/* HSVOL_CTRL (0x32) */ +#define NAU8821_HP_MUTE (0x1 << 15) +#define NAU8821_HP_MUTE_AUTO (0x1 << 14) +#define NAU8821_HPL_MUTE (0x1 << 13) +#define NAU8821_HPR_MUTE (0x1 << 12) +#define NAU8821_HPL_VOL_SFT 4 +#define NAU8821_HPL_VOL_MASK (0x3 << NAU8821_HPL_VOL_SFT) +#define NAU8821_HPR_VOL_SFT 0 +#define NAU8821_HPR_VOL_MASK (0x3 << NAU8821_HPR_VOL_SFT) + +/* DACR_CTRL (0x34) */ +#define NAU8821_DACR_CH_VOL_SFT 8 +#define NAU8821_DACR_CH_VOL_MASK (0xff << NAU8821_DACR_CH_VOL_SFT) +#define NAU8821_DACL_CH_VOL_SFT 0 +#define NAU8821_DACL_CH_VOL_MASK 0xff + +/* ADC_DGAIN_CTRL1 (0x35) */ +#define NAU8821_ADCR_CH_VOL_SFT 8 +#define NAU8821_ADCR_CH_VOL_MASK (0xff << NAU8821_ADCR_CH_VOL_SFT) +#define NAU8821_ADCL_CH_VOL_SFT 0 +#define NAU8821_ADCL_CH_VOL_MASK 0xff + +/* BIQ1_COF10 (0x4a) */ +#define NAU8821_BIQ1_DAC_EN_SFT 3 +#define NAU8821_BIQ1_DAC_EN_EN (0x1 << NAU8821_BIQ1_DAC_EN_SFT) + +/* CLASSG_CTRL (0x4b) */ +#define NAU8821_CLASSG_TIMER_SFT 8 +#define NAU8821_CLASSG_TIMER_MASK (0x3f << NAU8821_CLASSG_TIMER_SFT) +#define NAU8821_CLASSG_TIMER_64MS (0x20 << NAU8821_CLASSG_TIMER_SFT) +#define NAU8821_CLASSG_TIMER_32MS (0x10 << NAU8821_CLASSG_TIMER_SFT) +#define NAU8821_CLASSG_TIMER_16MS (0x8 << NAU8821_CLASSG_TIMER_SFT) +#define NAU8821_CLASSG_TIMER_8MS (0x4 << NAU8821_CLASSG_TIMER_SFT) +#define NAU8821_CLASSG_TIMER_2MS (0x2 << NAU8821_CLASSG_TIMER_SFT) +#define NAU8821_CLASSG_TIMER_1MS (0x1 << NAU8821_CLASSG_TIMER_SFT) +#define NAU8821_CLASSG_RDAC_EN_SFT 2 +#define NAU8821_CLASSG_RDAC_EN (0x1 << NAU8821_CLASSG_RDAC_EN_SFT) +#define NAU8821_CLASSG_LDAC_EN_SFT 1 +#define NAU8821_CLASSG_LDAC_EN (0x1 << NAU8821_CLASSG_LDAC_EN_SFT) +#define NAU8821_CLASSG_EN_SFT 0 +#define NAU8821_CLASSG_EN 0x1 + +/* IMM_MODE_CTRL (0x4c) */ +#define NAU8821_IMM_THD_SFT 8 +#define NAU8821_IMM_THD_MASK (0x3f << NAU8821_IMM_THD_SFT) +#define NAU8821_IMM_GEN_VOL_SFT 6 +#define NAU8821_IMM_GEN_VOL_MASK (0x3 << NAU8821_IMM_GEN_VOL_SFT) +#define NAU8821_IMM_CYC_SFT 4 +#define NAU8821_IMM_CYC_MASK (0x3 << NAU8821_IMM_CYC_SFT) +#define NAU8821_IMM_EN (0x1 << 3) +#define NAU8821_IMM_DAC_SRC_MASK 0x3 + +/* I2C_DEVICE_ID (0x58) */ +#define NAU8821_KEYDET (0x1 << 7) +#define NAU8821_MICDET (0x1 << 6) +#define NAU8821_SOFTWARE_ID_MASK 0x3 + +/* BIAS_ADJ (0x66) */ +#define NAU8821_BIAS_HP_IMP (0x1 << 15) +#define NAU8821_BIAS_TESTDAC_SFT 8 +#define NAU8821_BIAS_TESTDAC_EN (0x3 << NAU8821_BIAS_TESTDAC_SFT) +#define NAU8821_BIAS_TESTDACR_EN (0x2 << NAU8821_BIAS_TESTDAC_SFT) +#define NAU8821_BIAS_TESTDACL_EN (0x1 << NAU8821_BIAS_TESTDAC_SFT) +#define NAU8821_BIAS_VMID (0x1 << 6) +#define NAU8821_BIAS_VMID_SEL_SFT 4 +#define NAU8821_BIAS_VMID_SEL_MASK (0x3 << NAU8821_BIAS_VMID_SEL_SFT) + +/* ANALOG_CONTROL_1 (0x69) */ +#define NAU8821_JD_POL_SFT 2 +#define NAU8821_JD_POL_MASK (0x1 << NAU8821_JD_POL_SFT) +#define NAU8821_JD_POL_INV (0x1 << NAU8821_JD_POL_SFT) +#define NAU8821_JD_OUT_POL_SFT 1 +#define NAU8821_JD_OUT_POL_MASK (0x1 << NAU8821_JD_OUT_POL_SFT) +#define NAU8821_JD_OUT_POL_INV (0x1 << NAU8821_JD_OUT_POL_SFT) +#define NAU8821_JD_EN_SFT 0 +#define NAU8821_JD_EN 0x1 + +/* ANALOG_CONTROL_2 (0x6a) */ +#define NAU8821_HP_NON_CLASSG_CURRENT_2xADJ (0x1 << 12) +#define NAU8821_DAC_CAPACITOR_MSB (0x1 << 1) +#define NAU8821_DAC_CAPACITOR_LSB 0x1 + +/* ANALOG_ADC_1 (0x71) */ +#define NAU8821_MICDET_EN_SFT 0 +#define NAU8821_MICDET_MASK 0x1 +#define NAU8821_MICDET_DIS 0x1 +#define NAU8821_MICDET_EN 0x0 + +/* ANALOG_ADC_2 (0x72) */ +#define NAU8821_ADC_VREFSEL_SFT 8 +#define NAU8821_ADC_VREFSEL_MASK (0x3 << NAU8821_ADC_VREFSEL_SFT) +#define NAU8821_POWERUP_ADCL_SFT 6 +#define NAU8821_POWERUP_ADCL (0x1 << NAU8821_POWERUP_ADCL_SFT) +#define NAU8821_POWERUP_ADCR_SFT 4 +#define NAU8821_POWERUP_ADCR (0x1 << NAU8821_POWERUP_ADCR_SFT) + +/* RDAC (0x73) */ +#define NAU8821_DACR_EN_SFT 13 +#define NAU8821_DACR_EN (0x3 << NAU8821_DACR_EN_SFT) +#define NAU8821_DACL_EN_SFT 12 +#define NAU8821_DACL_EN (0x3 << NAU8821_DACL_EN_SFT) +#define NAU8821_DACR_CLK_EN_SFT 9 +#define NAU8821_DACR_CLK_EN (0x3 << NAU8821_DACR_CLK_EN_SFT) +#define NAU8821_DACL_CLK_EN_SFT 8 +#define NAU8821_DACL_CLK_EN (0x3 << NAU8821_DACL_CLK_EN_SFT) +#define NAU8821_DAC_CLK_DELAY_SFT 4 +#define NAU8821_DAC_CLK_DELAY_MASK (0x7 << NAU8821_DAC_CLK_DELAY_SFT) +#define NAU8821_DAC_VREF_SFT 2 +#define NAU8821_DAC_VREF_MASK (0x3 << NAU8821_DAC_VREF_SFT) + +/* MIC_BIAS (0x74) */ +#define NAU8821_MICBIAS_JKR2 (0x1 << 12) +#define NAU8821_MICBIAS_POWERUP_SFT 8 +#define NAU8821_MICBIAS_VOLTAGE_SFT 0 +#define NAU8821_MICBIAS_VOLTAGE_MASK 0x7 + +/* BOOST (0x76) */ +#define NAU8821_PRECHARGE_DIS (0x1 << 13) +#define NAU8821_GLOBAL_BIAS_EN (0x1 << 12) +#define NAU8821_HP_BOOST_DIS_SFT 9 +#define NAU8821_HP_BOOST_DIS (0x1 << NAU8821_HP_BOOST_DIS_SFT) +#define NAU8821_HP_BOOST_G_DIS (0x1 << 8) +#define NAU8821_SHORT_SHUTDOWN_EN (0x1 << 6) + +/* FEPGA (0x77) */ +#define NAU8821_FEPGA_MODEL_SFT 4 +#define NAU8821_FEPGA_MODEL_MASK (0xf << NAU8821_FEPGA_MODEL_SFT) +#define NAU8821_FEPGA_MODER_SFT 0 +#define NAU8821_FEPGA_MODER_MASK 0xf + +/* PGA_GAIN (0x7e) */ +#define NAU8821_PGA_GAIN_L_SFT 8 +#define NAU8821_PGA_GAIN_L_MASK (0x3f << NAU8821_PGA_GAIN_L_SFT) +#define NAU8821_PGA_GAIN_R_SFT 0 +#define NAU8821_PGA_GAIN_R_MASK 0x3f + +/* POWER_UP_CONTROL (0x7f) */ +#define NAU8821_PUP_PGA_L_SFT 15 +#define NAU8821_PUP_PGA_L (0x1 << NAU8821_PUP_PGA_L_SFT) +#define NAU8821_PUP_PGA_R_SFT 14 +#define NAU8821_PUP_PGA_R (0x1 << NAU8821_PUP_PGA_R_SFT) +#define NAU8821_PUP_INTEG_R_SFT 5 +#define NAU8821_PUP_INTEG_R (0x1 << NAU8821_PUP_INTEG_R_SFT) +#define NAU8821_PUP_INTEG_L_SFT 4 +#define NAU8821_PUP_INTEG_L (0x1 << NAU8821_PUP_INTEG_L_SFT) +#define NAU8821_PUP_DRV_INSTG_R_SFT 3 +#define NAU8821_PUP_DRV_INSTG_R (0x1 << NAU8821_PUP_DRV_INSTG_R_SFT) +#define NAU8821_PUP_DRV_INSTG_L_SFT 2 +#define NAU8821_PUP_DRV_INSTG_L (0x1 << NAU8821_PUP_DRV_INSTG_L_SFT) +#define NAU8821_PUP_MAIN_DRV_R_SFT 1 +#define NAU8821_PUP_MAIN_DRV_R (0x1 << NAU8821_PUP_MAIN_DRV_R_SFT) +#define NAU8821_PUP_MAIN_DRV_L_SFT 0 +#define NAU8821_PUP_MAIN_DRV_L 0x1 + +/* CHARGE_PUMP (0x80) */ +#define NAU8821_JAMNODCLOW (0x1 << 10) +#define NAU8821_POWER_DOWN_DACR_SFT 9 +#define NAU8821_POWER_DOWN_DACR (0x1 << NAU8821_POWER_DOWN_DACR_SFT) +#define NAU8821_POWER_DOWN_DACL_SFT 8 +#define NAU8821_POWER_DOWN_DACL (0x1 << NAU8821_POWER_DOWN_DACL_SFT) +#define NAU8821_CHANRGE_PUMP_EN_SFT 5 +#define NAU8821_CHANRGE_PUMP_EN (0x1 << NAU8821_CHANRGE_PUMP_EN_SFT) + +/* GENERAL_STATUS (0x82) */ +#define NAU8821_GPIO2_IN_SFT 1 +#define NAU8821_GPIO2_IN (0x1 << NAU8821_GPIO2_IN_SFT) + +#define NUVOTON_CODEC_DAI "nau8821-hifi" + +/* System Clock Source */ +enum { + NAU8821_CLK_DIS, + NAU8821_CLK_MCLK, + NAU8821_CLK_INTERNAL, + NAU8821_CLK_FLL_MCLK, + NAU8821_CLK_FLL_BLK, + NAU8821_CLK_FLL_FS, +}; + +struct nau8821 { + struct device *dev; + struct regmap *regmap; + struct snd_soc_dapm_context *dapm; + struct snd_soc_jack *jack; + struct work_struct jdet_work; + int irq; + int clk_id; + int micbias_voltage; + int vref_impedance; + bool jkdet_enable; + bool jkdet_pull_enable; + bool jkdet_pull_up; + int jkdet_polarity; + int jack_insert_debounce; + int jack_eject_debounce; + int fs; + int dmic_clk_threshold; +}; + +int nau8821_enable_jack_detect(struct snd_soc_component *component, + struct snd_soc_jack *jack); + +#endif /* __NAU8821_H__ */