February 2017 - Alsa-devel - mailman.alsa-project.org

[alsa-devel] [PATCH] ASoC: nau8824: new codec driver
by John Hsu 02 Feb '17

02 Feb '17

Add codec driver of NAU88L24 Signed-off-by: John Hsu <KCHSU0(a)nuvoton.com> --- .../devicetree/bindings/sound/nau8824.txt | 86 + sound/soc/codecs/Kconfig | 5 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/nau8824.c | 1750 ++++++++++++++++++++ sound/soc/codecs/nau8824.h | 462 ++++++ 5 files changed, 2305 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/nau8824.txt create mode 100644 sound/soc/codecs/nau8824.c create mode 100644 sound/soc/codecs/nau8824.h diff --git a/Documentation/devicetree/bindings/sound/nau8824.txt b/Documentation/devicetree/bindings/sound/nau8824.txt new file mode 100644 index 0000000..c0a68a6 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/nau8824.txt @@ -0,0 +1,86 @@ +Nuvoton NAU8824 audio codec + +This device supports I2C only. + +Required properties: + - compatible : Must be "nuvoton,nau8824" + + - reg : the I2C address of the device. This is either 0x1a (CSB=0) or 0x1b (CSB=1). + +Optional properties: + - 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,sar-threshold-num: Number of buttons supported + - nuvoton,sar-threshold: Impedance threshold for each button. Array that contains up to 8 buttons configuration. SAR value is calculated as + SAR = 255 * MICBIAS / SAR_VOLTAGE * R / (2000 + R) + where MICBIAS is configured by 'nuvoton,micbias-voltage', SAR_VOLTAGE is configured by 'nuvoton,sar-voltage', R - button impedance. + Refer datasheet section 10.2 for more information about threshold calculation. + + - nuvoton,sar-hysteresis: Button impedance measurement hysteresis. + + - nuvoton,sar-voltage: Reference voltage for button impedance measurement. + 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,sar-compare-time: SAR compare time + 0 - 500 ns + 1 - 1 us + 2 - 2 us + 3 - 4 us + + - nuvoton,sar-sampling-time: SAR sampling time + 0 - 2 us + 1 - 4 us + 2 - 8 us + 3 - 16 us + + - nuvoton,short-key-debounce: Button short key press debounce time. + 0 - 30 ms + 1 - 50 ms + 2 - 100 ms + + - nuvoton,jack-eject-debounce: Jack ejection debounce time. + 0 - 0 ms + 1 - 1 ms + 2 - 10 ms + + +Example: + + headset: nau8824@1a { + compatible = "nuvoton,nau8824"; + reg = <0x1a>; + interrupt-parent = <&gpio>; + interrupts = <TEGRA_GPIO(E, 6) IRQ_TYPE_LEVEL_LOW>; + nuvoton,vref-impedance = <2>; + nuvoton,micbias-voltage = <6>; + // Setup 4 buttons impedance according to Android specification + nuvoton,sar-threshold-num = <4>; + nuvoton,sar-threshold = <0xc 0x1e 0x38 0x60>; + nuvoton,sar-hysteresis = <0>; + nuvoton,sar-voltage = <6>; + nuvoton,sar-compare-time = <1>; + nuvoton,sar-sampling-time = <1>; + nuvoton,short-key-debounce = <0>; + nuvoton,jack-eject-debounce = <1>; + }; diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 9e1718a..67b5de5 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -96,6 +96,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_MC13783 if MFD_MC13XXX select SND_SOC_ML26124 if I2C select SND_SOC_NAU8810 if I2C + select SND_SOC_NAU8824 if I2C select SND_SOC_NAU8825 if I2C select SND_SOC_HDMI_CODEC select SND_SOC_PCM1681 if I2C @@ -1109,6 +1110,10 @@ config SND_SOC_NAU8810 tristate "Nuvoton Technology Corporation NAU88C10 CODEC" depends on I2C +config SND_SOC_NAU8824 + tristate "Nuvoton Technology Corporation NAU88L24 CODEC" + depends on I2C + config SND_SOC_NAU8825 tristate diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index 7e1dad7..02dd0c3 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -91,6 +91,7 @@ snd-soc-ml26124-objs := ml26124.o snd-soc-msm8916-analog-objs := msm8916-wcd-analog.o snd-soc-msm8916-digital-objs := msm8916-wcd-digital.o snd-soc-nau8810-objs := nau8810.o +snd-soc-nau8824-objs := nau8824.o snd-soc-nau8825-objs := nau8825.o snd-soc-hdmi-codec-objs := hdmi-codec.o snd-soc-pcm1681-objs := pcm1681.o @@ -319,6 +320,7 @@ obj-$(CONFIG_SND_SOC_ML26124) += snd-soc-ml26124.o obj-$(CONFIG_SND_SOC_MSM8916_WCD_ANALOG) +=snd-soc-msm8916-analog.o obj-$(CONFIG_SND_SOC_MSM8916_WCD_DIGITAL) +=snd-soc-msm8916-digital.o obj-$(CONFIG_SND_SOC_NAU8810) += snd-soc-nau8810.o +obj-$(CONFIG_SND_SOC_NAU8824) += snd-soc-nau8824.o obj-$(CONFIG_SND_SOC_NAU8825) += snd-soc-nau8825.o obj-$(CONFIG_SND_SOC_HDMI_CODEC) += snd-soc-hdmi-codec.o obj-$(CONFIG_SND_SOC_PCM1681) += snd-soc-pcm1681.o diff --git a/sound/soc/codecs/nau8824.c b/sound/soc/codecs/nau8824.c new file mode 100644 index 0000000..c5065c5 --- /dev/null +++ b/sound/soc/codecs/nau8824.c @@ -0,0 +1,1750 @@ +/* + * NAU88L24 ALSA SoC audio driver + * + * Copyright 2016 Nuvoton Technology Corp. + * Author: John Hsu <KCHSU0(a)nuvoton.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/slab.h> +#include <linux/clk.h> +#include <linux/acpi.h> +#include <linux/math64.h> +#include <linux/semaphore.h> + +#include <sound/initval.h> +#include <sound/tlv.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/jack.h> + +#include "nau8824.h" + + +/* the ADC threshold of headset */ +#define HEADSET_SARADC_THD 0x80 + +static int nau8824_config_sysclk(struct nau8824 *nau8824, + int clk_id, unsigned int freq); +static bool nau8824_is_jack_inserted(struct nau8824 *nau8824); + +/* the parameter threshold of FLL */ +#define NAU_FREF_MAX 13500000 +#define NAU_FVCO_MAX 124000000 +#define NAU_FVCO_MIN 90000000 + +/* scaling for mclk from sysclk_src output */ +static const struct nau8824_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 }, +}; + +/* ratio for input clk freq */ +static const struct nau8824_fll_attr fll_ratio[] = { + { 512000, 0x01 }, + { 256000, 0x02 }, + { 128000, 0x04 }, + { 64000, 0x08 }, + { 32000, 0x10 }, + { 8000, 0x20 }, + { 4000, 0x40 }, +}; + +static const struct nau8824_fll_attr fll_pre_scalar[] = { + { 1, 0x0 }, + { 2, 0x1 }, + { 4, 0x2 }, + { 8, 0x3 }, +}; + +/* the maximum frequency of CLK_ADC and CLK_DAC */ +#define CLK_DA_AD_MAX 6144000 + +/* over sampling rate */ +static const struct nau8824_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 nau8824_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 */ +}; + +static const struct reg_default nau8824_reg_defaults[] = { + { NAU8824_REG_ENA_CTRL, 0x0000 }, + { NAU8824_REG_CLK_GATING_ENA, 0x0000 }, + { NAU8824_REG_CLK_DIVIDER, 0x0000 }, + { NAU8824_REG_FLL1, 0x0000 }, + { NAU8824_REG_FLL2, 0x3126 }, + { NAU8824_REG_FLL3, 0x0008 }, + { NAU8824_REG_FLL4, 0x0010 }, + { NAU8824_REG_FLL5, 0xC000 }, + { NAU8824_REG_FLL6, 0x6000 }, + { NAU8824_REG_FLL_VCO_RSV, 0xF13C }, + { NAU8824_REG_JACK_DET_CTRL, 0x0000 }, + { NAU8824_REG_INTERRUPT_SETTING_1, 0x0000 }, + { NAU8824_REG_IRQ, 0x0000 }, + { NAU8824_REG_CLEAR_INT_REG, 0x0000 }, + { NAU8824_REG_INTERRUPT_SETTING, 0x1000 }, + { NAU8824_REG_SAR_ADC, 0x0015 }, + { NAU8824_REG_VDET_COEFFICIENT, 0x0110 }, + { NAU8824_REG_VDET_THRESHOLD_1, 0x0000 }, + { NAU8824_REG_VDET_THRESHOLD_2, 0x0000 }, + { NAU8824_REG_VDET_THRESHOLD_3, 0x0000 }, + { NAU8824_REG_VDET_THRESHOLD_4, 0x0000 }, + { NAU8824_REG_GPIO_SEL, 0x0000 }, + { NAU8824_REG_PORT0_I2S_PCM_CTRL_1, 0x000B }, + { NAU8824_REG_PORT0_I2S_PCM_CTRL_2, 0x0010 }, + { NAU8824_REG_PORT0_LEFT_TIME_SLOT, 0x0000 }, + { NAU8824_REG_PORT0_RIGHT_TIME_SLOT, 0x0000 }, + { NAU8824_REG_TDM_CTRL, 0x0000 }, + { NAU8824_REG_ADC_HPF_FILTER, 0x0000 }, + { NAU8824_REG_ADC_FILTER_CTRL, 0x0002 }, + { NAU8824_REG_DAC_FILTER_CTRL_1, 0x0000 }, + { NAU8824_REG_DAC_FILTER_CTRL_2, 0x0000 }, + { NAU8824_REG_NOTCH_FILTER_1, 0x0000 }, + { NAU8824_REG_NOTCH_FILTER_2, 0x0000 }, + { NAU8824_REG_EQ1_LOW, 0x112C }, + { NAU8824_REG_EQ2_EQ3, 0x2C2C }, + { NAU8824_REG_EQ4_EQ5, 0x2C2C }, + { NAU8824_REG_ADC_CH0_DGAIN_CTRL, 0x0100 }, + { NAU8824_REG_ADC_CH1_DGAIN_CTRL, 0x0100 }, + { NAU8824_REG_ADC_CH2_DGAIN_CTRL, 0x0100 }, + { NAU8824_REG_ADC_CH3_DGAIN_CTRL, 0x0100 }, + { NAU8824_REG_DAC_MUTE_CTRL, 0x0000 }, + { NAU8824_REG_DAC_CH0_DGAIN_CTRL, 0x0100 }, + { NAU8824_REG_DAC_CH1_DGAIN_CTRL, 0x0100 }, + { NAU8824_REG_ADC_TO_DAC_ST, 0x0000 }, + { NAU8824_REG_DRC_KNEE_IP12_ADC_CH01, 0x1486 }, + { NAU8824_REG_DRC_KNEE_IP34_ADC_CH01, 0x0F12 }, + { NAU8824_REG_DRC_SLOPE_ADC_CH01, 0x25FF }, + { NAU8824_REG_DRC_ATKDCY_ADC_CH01, 0x3457 }, + { NAU8824_REG_DRC_KNEE_IP12_ADC_CH23, 0x1486 }, + { NAU8824_REG_DRC_KNEE_IP34_ADC_CH23, 0x0F12 }, + { NAU8824_REG_DRC_SLOPE_ADC_CH23, 0x25FF }, + { NAU8824_REG_DRC_ATKDCY_ADC_CH23, 0x3457 }, + { NAU8824_REG_DRC_GAINL_ADC0, 0x0200 }, + { NAU8824_REG_DRC_GAINL_ADC1, 0x0200 }, + { NAU8824_REG_DRC_GAINL_ADC2, 0x0200 }, + { NAU8824_REG_DRC_GAINL_ADC3, 0x0200 }, + { NAU8824_REG_DRC_KNEE_IP12_DAC, 0x1486 }, + { NAU8824_REG_DRC_KNEE_IP34_DAC, 0x0F12 }, + { NAU8824_REG_DRC_SLOPE_DAC, 0x25F9 }, + { NAU8824_REG_DRC_ATKDCY_DAC, 0x3457 }, + { NAU8824_REG_DRC_GAIN_DAC_CH0, 0x0200 }, + { NAU8824_REG_DRC_GAIN_DAC_CH1, 0x0200 }, + { NAU8824_REG_MODE, 0x0000 }, + { NAU8824_REG_MODE1, 0x0000 }, + { NAU8824_REG_MODE2, 0x0000 }, + { NAU8824_REG_CLASSG, 0x0000 }, + { NAU8824_REG_OTP_EFUSE, 0x0000 }, + { NAU8824_REG_OTPDOUT_1, 0x0000 }, + { NAU8824_REG_OTPDOUT_2, 0x0000 }, + { NAU8824_REG_MISC_CTRL, 0x0000 }, + { NAU8824_REG_I2C_TIMEOUT, 0xEFFF }, + { NAU8824_REG_TEST_MODE, 0x0000 }, + { NAU8824_REG_I2C_DEVICE_ID, 0x1AF1 }, + { NAU8824_REG_SAR_ADC_DATA_OUT, 0x00FF }, + { NAU8824_REG_BIAS_ADJ, 0x0000 }, + { NAU8824_REG_PGA_GAIN, 0x0000 }, + { NAU8824_REG_TRIM_SETTINGS, 0x0000 }, + { NAU8824_REG_ANALOG_CONTROL_1, 0x0000 }, + { NAU8824_REG_ANALOG_CONTROL_2, 0x0000 }, + { NAU8824_REG_ENABLE_LO, 0x0000 }, + { NAU8824_REG_GAIN_LO, 0x0000 }, + { NAU8824_REG_CLASSD_GAIN_1, 0x0000 }, + { NAU8824_REG_CLASSD_GAIN_2, 0x0000 }, + { NAU8824_REG_ANALOG_ADC_1, 0x0011 }, + { NAU8824_REG_ANALOG_ADC_2, 0x0020 }, + { NAU8824_REG_RDAC, 0x0008 }, + { NAU8824_REG_MIC_BIAS, 0x0006 }, + { NAU8824_REG_HS_VOLUME_CONTROL, 0x0000 }, + { NAU8824_REG_BOOST, 0x0000 }, + { NAU8824_REG_FEPGA, 0x0000 }, + { NAU8824_REG_FEPGA_II, 0x0000 }, + { NAU8824_REG_FEPGA_SE, 0x0000 }, + { NAU8824_REG_FEPGA_ATTENUATION, 0x0000 }, + { NAU8824_REG_ATT_PORT0, 0x0000 }, + { NAU8824_REG_ATT_PORT1, 0x0000 }, + { NAU8824_REG_POWER_UP_CONTROL, 0x0000 }, + { NAU8824_REG_CHARGE_PUMP_CONTROL, 0x0300 }, + { NAU8824_REG_CHARGE_PUMP_INPUT, 0x0013 }, +}; + +static int nau8824_sema_acquire(struct nau8824 *nau8824, long timeout) +{ + int ret; + + if (timeout) { + ret = down_timeout(&nau8824->jd_sem, timeout); + if (ret < 0) + dev_warn(nau8824->dev, "Acquire semaphone timeout\n"); + } else { + ret = down_interruptible(&nau8824->jd_sem); + if (ret < 0) + dev_warn(nau8824->dev, "Acquire semaphone fail\n"); + } + + return ret; +} + +static inline void nau8824_sema_release(struct nau8824 *nau8824) +{ + up(&nau8824->jd_sem); +} + +static bool nau8824_readable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case NAU8824_REG_ENA_CTRL ... NAU8824_REG_FLL_VCO_RSV: + case NAU8824_REG_JACK_DET_CTRL: + case NAU8824_REG_INTERRUPT_SETTING_1: + case NAU8824_REG_IRQ: + case NAU8824_REG_CLEAR_INT_REG ... NAU8824_REG_VDET_THRESHOLD_4: + case NAU8824_REG_GPIO_SEL: + case NAU8824_REG_PORT0_I2S_PCM_CTRL_1 ... NAU8824_REG_TDM_CTRL: + case NAU8824_REG_ADC_HPF_FILTER ... NAU8824_REG_EQ4_EQ5: + case NAU8824_REG_ADC_CH0_DGAIN_CTRL ... NAU8824_REG_ADC_TO_DAC_ST: + case NAU8824_REG_DRC_KNEE_IP12_ADC_CH01 ... NAU8824_REG_DRC_GAINL_ADC3: + case NAU8824_REG_DRC_KNEE_IP12_DAC ... NAU8824_REG_DRC_GAIN_DAC_CH1: + case NAU8824_REG_CLASSG ... NAU8824_REG_OTP_EFUSE: + case NAU8824_REG_OTPDOUT_1 ... NAU8824_REG_OTPDOUT_2: + case NAU8824_REG_I2C_TIMEOUT: + case NAU8824_REG_I2C_DEVICE_ID ... NAU8824_REG_SAR_ADC_DATA_OUT: + case NAU8824_REG_BIAS_ADJ ... NAU8824_REG_CLASSD_GAIN_2: + case NAU8824_REG_ANALOG_ADC_1 ... NAU8824_REG_ATT_PORT1: + case NAU8824_REG_POWER_UP_CONTROL ... NAU8824_REG_CHARGE_PUMP_INPUT: + return true; + default: + return false; + } + +} + +static bool nau8824_writeable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case NAU8824_REG_RESET ... NAU8824_REG_FLL_VCO_RSV: + case NAU8824_REG_JACK_DET_CTRL: + case NAU8824_REG_INTERRUPT_SETTING_1: + case NAU8824_REG_CLEAR_INT_REG ... NAU8824_REG_VDET_THRESHOLD_4: + case NAU8824_REG_GPIO_SEL: + case NAU8824_REG_PORT0_I2S_PCM_CTRL_1 ... NAU8824_REG_TDM_CTRL: + case NAU8824_REG_ADC_HPF_FILTER ... NAU8824_REG_EQ4_EQ5: + case NAU8824_REG_ADC_CH0_DGAIN_CTRL ... NAU8824_REG_ADC_TO_DAC_ST: + case NAU8824_REG_DRC_KNEE_IP12_ADC_CH01: + case NAU8824_REG_DRC_KNEE_IP34_ADC_CH01: + case NAU8824_REG_DRC_SLOPE_ADC_CH01: + case NAU8824_REG_DRC_ATKDCY_ADC_CH01: + case NAU8824_REG_DRC_KNEE_IP12_ADC_CH23: + case NAU8824_REG_DRC_KNEE_IP34_ADC_CH23: + case NAU8824_REG_DRC_SLOPE_ADC_CH23: + case NAU8824_REG_DRC_ATKDCY_ADC_CH23: + case NAU8824_REG_DRC_KNEE_IP12_DAC ... NAU8824_REG_DRC_ATKDCY_DAC: + case NAU8824_REG_CLASSG ... NAU8824_REG_OTP_EFUSE: + case NAU8824_REG_I2C_TIMEOUT: + case NAU8824_REG_BIAS_ADJ ... NAU8824_REG_CLASSD_GAIN_2: + case NAU8824_REG_ANALOG_ADC_1 ... NAU8824_REG_ATT_PORT1: + case NAU8824_REG_POWER_UP_CONTROL ... NAU8824_REG_CHARGE_PUMP_CONTROL: + return true; + default: + return false; + } +} + +static bool nau8824_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case NAU8824_REG_RESET: + case NAU8824_REG_IRQ ... NAU8824_REG_CLEAR_INT_REG: + case NAU8824_REG_DRC_GAINL_ADC0 ... NAU8824_REG_DRC_GAINL_ADC3: + case NAU8824_REG_DRC_GAIN_DAC_CH0 ... NAU8824_REG_DRC_GAIN_DAC_CH1: + case NAU8824_REG_OTPDOUT_1 ... NAU8824_REG_OTPDOUT_2: + case NAU8824_REG_I2C_DEVICE_ID ... NAU8824_REG_SAR_ADC_DATA_OUT: + case NAU8824_REG_CHARGE_PUMP_INPUT: + return true; + default: + return false; + } +} + +static const char * const nau8824_companding[] = { + "Off", "NC", "u-law", "A-law" }; + +static const struct soc_enum nau8824_companding_adc_enum = + SOC_ENUM_SINGLE(NAU8824_REG_PORT0_I2S_PCM_CTRL_1, 12, + ARRAY_SIZE(nau8824_companding), nau8824_companding); + +static const struct soc_enum nau8824_companding_dac_enum = + SOC_ENUM_SINGLE(NAU8824_REG_PORT0_I2S_PCM_CTRL_1, 14, + ARRAY_SIZE(nau8824_companding), nau8824_companding); + +static const char * const nau8824_adc_decimation[] = { + "32", "64", "128", "256" }; + +static const struct soc_enum nau8824_adc_decimation_enum = + SOC_ENUM_SINGLE(NAU8824_REG_ADC_FILTER_CTRL, 0, + ARRAY_SIZE(nau8824_adc_decimation), nau8824_adc_decimation); + +static const char * const nau8824_dac_oversampl[] = { + "64", "256", "128", "", "32" }; + +static const struct soc_enum nau8824_dac_oversampl_enum = + SOC_ENUM_SINGLE(NAU8824_REG_DAC_FILTER_CTRL_1, 0, + ARRAY_SIZE(nau8824_dac_oversampl), nau8824_dac_oversampl); + +static const char * const nau8824_input_channel[] = { + "Input CH0", "Input CH1", "Input CH2", "Input CH3" }; + +static const struct soc_enum nau8824_adc_ch0_enum = + SOC_ENUM_SINGLE(NAU8824_REG_ADC_CH0_DGAIN_CTRL, 9, + ARRAY_SIZE(nau8824_input_channel), nau8824_input_channel); + +static const struct soc_enum nau8824_adc_ch1_enum = + SOC_ENUM_SINGLE(NAU8824_REG_ADC_CH1_DGAIN_CTRL, 9, + ARRAY_SIZE(nau8824_input_channel), nau8824_input_channel); + +static const struct soc_enum nau8824_adc_ch2_enum = + SOC_ENUM_SINGLE(NAU8824_REG_ADC_CH2_DGAIN_CTRL, 9, + ARRAY_SIZE(nau8824_input_channel), nau8824_input_channel); + +static const struct soc_enum nau8824_adc_ch3_enum = + SOC_ENUM_SINGLE(NAU8824_REG_ADC_CH3_DGAIN_CTRL, 9, + ARRAY_SIZE(nau8824_input_channel), nau8824_input_channel); + +static const char * const nau8824_tdm_slot[] = { + "Slot 0", "Slot 1", "Slot 2", "Slot 3" }; + +static const struct soc_enum nau8824_dac_left_sel_enum = + SOC_ENUM_SINGLE(NAU8824_REG_TDM_CTRL, 6, + ARRAY_SIZE(nau8824_tdm_slot), nau8824_tdm_slot); + +static const struct soc_enum nau8824_dac_right_sel_enum = + SOC_ENUM_SINGLE(NAU8824_REG_TDM_CTRL, 4, + ARRAY_SIZE(nau8824_tdm_slot), nau8824_tdm_slot); + +static const DECLARE_TLV_DB_MINMAX_MUTE(spk_vol_tlv, 0, 2400); +static const DECLARE_TLV_DB_MINMAX(hp_vol_tlv, -3000, 0); +static const DECLARE_TLV_DB_SCALE(mic_vol_tlv, 0, 200, 0); +static const DECLARE_TLV_DB_SCALE(dmic_vol_tlv, -12800, 50, 0); + +static const struct snd_kcontrol_new nau8824_snd_controls[] = { + SOC_ENUM("ADC Companding", nau8824_companding_adc_enum), + SOC_ENUM("DAC Companding", nau8824_companding_dac_enum), + + SOC_ENUM("ADC Decimation Rate", nau8824_adc_decimation_enum), + SOC_ENUM("DAC Oversampling Rate", nau8824_dac_oversampl_enum), + + SOC_SINGLE_TLV("Speaker Right Volume from DACR", + NAU8824_REG_CLASSD_GAIN_1, 8, 0x1f, 0, spk_vol_tlv), + SOC_SINGLE_TLV("Speaker Left Volume from DACL", + NAU8824_REG_CLASSD_GAIN_2, 0, 0x1f, 0, spk_vol_tlv), + SOC_SINGLE_TLV("Speaker Left Volume from DACR", + NAU8824_REG_CLASSD_GAIN_1, 0, 0x1f, 0, spk_vol_tlv), + SOC_SINGLE_TLV("Speaker Right Volume from DACL", + NAU8824_REG_CLASSD_GAIN_2, 8, 0x1f, 0, spk_vol_tlv), + + SOC_SINGLE_TLV("Headphone Right Volume from DACR", + NAU8824_REG_ATT_PORT0, 8, 0x1f, 0, hp_vol_tlv), + SOC_SINGLE_TLV("Headphone Left Volume from DACL", + NAU8824_REG_ATT_PORT0, 0, 0x1f, 0, hp_vol_tlv), + SOC_SINGLE_TLV("Headphone Right Volume from DACL", + NAU8824_REG_ATT_PORT1, 8, 0x1f, 0, hp_vol_tlv), + SOC_SINGLE_TLV("Headphone Left Volume from DACR", + NAU8824_REG_ATT_PORT1, 0, 0x1f, 0, hp_vol_tlv), + + SOC_SINGLE_TLV("Mic1 Volume", NAU8824_REG_FEPGA_II, + NAU8824_FEPGA_GAINL_SFT, 0x12, 0, mic_vol_tlv), + SOC_SINGLE_TLV("Mic2 Volume", NAU8824_REG_FEPGA_II, + NAU8824_FEPGA_GAINR_SFT, 0x12, 0, mic_vol_tlv), + + SOC_SINGLE_TLV("DMIC1 Volume", NAU8824_REG_ADC_CH0_DGAIN_CTRL, + 0, 0x164, 0, dmic_vol_tlv), + SOC_SINGLE_TLV("DMIC2 Volume", NAU8824_REG_ADC_CH1_DGAIN_CTRL, + 0, 0x164, 0, dmic_vol_tlv), + SOC_SINGLE_TLV("DMIC3 Volume", NAU8824_REG_ADC_CH2_DGAIN_CTRL, + 0, 0x164, 0, dmic_vol_tlv), + SOC_SINGLE_TLV("DMIC4 Volume", NAU8824_REG_ADC_CH3_DGAIN_CTRL, + 0, 0x164, 0, dmic_vol_tlv), + + SOC_ENUM("ADC CH0 Select", nau8824_adc_ch0_enum), + SOC_ENUM("ADC CH1 Select", nau8824_adc_ch1_enum), + SOC_ENUM("ADC CH2 Select", nau8824_adc_ch2_enum), + SOC_ENUM("ADC CH3 Select", nau8824_adc_ch3_enum), + + SOC_SINGLE("ADC CH0 TX Switch", NAU8824_REG_TDM_CTRL, 0, 1, 0), + SOC_SINGLE("ADC CH1 TX Switch", NAU8824_REG_TDM_CTRL, 1, 1, 0), + SOC_SINGLE("ADC CH2 TX Switch", NAU8824_REG_TDM_CTRL, 2, 1, 0), + SOC_SINGLE("ADC CH3 TX Switch", NAU8824_REG_TDM_CTRL, 3, 1, 0), + + SOC_ENUM("DACL Channel Source", nau8824_dac_left_sel_enum), + SOC_ENUM("DACR Channel Source", nau8824_dac_right_sel_enum), + + SOC_SINGLE("DACL LR Mix", NAU8824_REG_DAC_MUTE_CTRL, 0, 1, 0), + SOC_SINGLE("DACR LR Mix", NAU8824_REG_DAC_MUTE_CTRL, 1, 1, 0), +}; + +static int nau8824_output_dac_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); + struct nau8824 *nau8824 = snd_soc_codec_get_drvdata(codec); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + /* Disables the TESTDAC to let DAC signal pass through. */ + regmap_update_bits(nau8824->regmap, NAU8824_REG_ENABLE_LO, + NAU8824_TEST_DAC_EN, 0); + break; + case SND_SOC_DAPM_POST_PMD: + regmap_update_bits(nau8824->regmap, NAU8824_REG_ENABLE_LO, + NAU8824_TEST_DAC_EN, NAU8824_TEST_DAC_EN); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int nau8824_spk_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); + struct nau8824 *nau8824 = snd_soc_codec_get_drvdata(codec); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + regmap_update_bits(nau8824->regmap, + NAU8824_REG_ANALOG_CONTROL_2, + NAU8824_CLASSD_CLAMP_DIS, NAU8824_CLASSD_CLAMP_DIS); + break; + case SND_SOC_DAPM_POST_PMD: + regmap_update_bits(nau8824->regmap, + NAU8824_REG_ANALOG_CONTROL_2, + NAU8824_CLASSD_CLAMP_DIS, 0); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int nau8824_pump_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); + struct nau8824 *nau8824 = snd_soc_codec_get_drvdata(codec); + + switch (event) { + case SND_SOC_DAPM_POST_PMU: + /* Prevent startup click by letting charge pump to ramp up */ + usleep_range(10000, 11000); + regmap_update_bits(nau8824->regmap, + NAU8824_REG_CHARGE_PUMP_CONTROL, + NAU8824_JAMNODCLOW, NAU8824_JAMNODCLOW); + break; + case SND_SOC_DAPM_PRE_PMD: + regmap_update_bits(nau8824->regmap, + NAU8824_REG_CHARGE_PUMP_CONTROL, + NAU8824_JAMNODCLOW, 0); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int system_clock_control(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) +{ + struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); + struct nau8824 *nau8824 = snd_soc_codec_get_drvdata(codec); + + if (SND_SOC_DAPM_EVENT_OFF(event)) { + /* Set clock source to disable or internal clock before the + * playback or capture end. Codec needs clock for Jack + * detection and button press if jack inserted; otherwise, + * the clock should be closed. + */ + if (nau8824_is_jack_inserted(nau8824)) { + nau8824_config_sysclk(nau8824, + NAU8824_CLK_INTERNAL, 0); + } else { + nau8824_config_sysclk(nau8824, NAU8824_CLK_DIS, 0); + } + } + return 0; +} + +static const struct snd_kcontrol_new nau8824_adc_ch0_dmic = + SOC_DAPM_SINGLE("Switch", NAU8824_REG_ENA_CTRL, + NAU8824_ADC_CH0_DMIC_SFT, 1, 0); + +static const struct snd_kcontrol_new nau8824_adc_ch1_dmic = + SOC_DAPM_SINGLE("Switch", NAU8824_REG_ENA_CTRL, + NAU8824_ADC_CH1_DMIC_SFT, 1, 0); + +static const struct snd_kcontrol_new nau8824_adc_ch2_dmic = + SOC_DAPM_SINGLE("Switch", NAU8824_REG_ENA_CTRL, + NAU8824_ADC_CH2_DMIC_SFT, 1, 0); + +static const struct snd_kcontrol_new nau8824_adc_ch3_dmic = + SOC_DAPM_SINGLE("Switch", NAU8824_REG_ENA_CTRL, + NAU8824_ADC_CH3_DMIC_SFT, 1, 0); + +static const struct snd_kcontrol_new nau8824_adc_left_mixer[] = { + SOC_DAPM_SINGLE("MIC Switch", NAU8824_REG_FEPGA, + NAU8824_FEPGA_MODEL_MIC1_SFT, 1, 0), + SOC_DAPM_SINGLE("HSMIC Switch", NAU8824_REG_FEPGA, + NAU8824_FEPGA_MODEL_HSMIC_SFT, 1, 0), +}; + +static const struct snd_kcontrol_new nau8824_adc_right_mixer[] = { + SOC_DAPM_SINGLE("MIC Switch", NAU8824_REG_FEPGA, + NAU8824_FEPGA_MODER_MIC2_SFT, 1, 0), + SOC_DAPM_SINGLE("HSMIC Switch", NAU8824_REG_FEPGA, + NAU8824_FEPGA_MODER_HSMIC_SFT, 1, 0), +}; + +static const struct snd_kcontrol_new nau8824_hp_left_mixer[] = { + SOC_DAPM_SINGLE("DAC Right Switch", NAU8824_REG_ENABLE_LO, + NAU8824_DACR_HPL_EN_SFT, 1, 0), + SOC_DAPM_SINGLE("DAC Left Switch", NAU8824_REG_ENABLE_LO, + NAU8824_DACL_HPL_EN_SFT, 1, 0), +}; + +static const struct snd_kcontrol_new nau8824_hp_right_mixer[] = { + SOC_DAPM_SINGLE("DAC Left Switch", NAU8824_REG_ENABLE_LO, + NAU8824_DACL_HPR_EN_SFT, 1, 0), + SOC_DAPM_SINGLE("DAC Right Switch", NAU8824_REG_ENABLE_LO, + NAU8824_DACR_HPR_EN_SFT, 1, 0), +}; + +static const char * const nau8824_dac_src[] = { "DACL", "DACR" }; + +static SOC_ENUM_SINGLE_DECL( + nau8824_dacl_enum, NAU8824_REG_DAC_CH0_DGAIN_CTRL, + NAU8824_DAC_CH0_SEL_SFT, nau8824_dac_src); + +static SOC_ENUM_SINGLE_DECL( + nau8824_dacr_enum, NAU8824_REG_DAC_CH1_DGAIN_CTRL, + NAU8824_DAC_CH1_SEL_SFT, nau8824_dac_src); + +static const struct snd_kcontrol_new nau8824_dacl_mux = + SOC_DAPM_ENUM("DACL Source", nau8824_dacl_enum); + +static const struct snd_kcontrol_new nau8824_dacr_mux = + SOC_DAPM_ENUM("DACR Source", nau8824_dacr_enum); + + +static const struct snd_soc_dapm_widget nau8824_dapm_widgets[] = { + SND_SOC_DAPM_SUPPLY("System Clock", SND_SOC_NOPM, 0, 0, + system_clock_control, SND_SOC_DAPM_POST_PMD), + + SND_SOC_DAPM_INPUT("HSMIC1"), + SND_SOC_DAPM_INPUT("HSMIC2"), + SND_SOC_DAPM_INPUT("MIC1"), + SND_SOC_DAPM_INPUT("MIC2"), + SND_SOC_DAPM_INPUT("DMIC1"), + SND_SOC_DAPM_INPUT("DMIC2"), + SND_SOC_DAPM_INPUT("DMIC3"), + SND_SOC_DAPM_INPUT("DMIC4"), + + SND_SOC_DAPM_SUPPLY("SAR", NAU8824_REG_SAR_ADC, + NAU8824_SAR_ADC_EN_SFT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("MICBIAS", NAU8824_REG_MIC_BIAS, + NAU8824_MICBIAS_POWERUP_SFT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("DMIC12 Power", NAU8824_REG_BIAS_ADJ, + NAU8824_DMIC1_EN_SFT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("DMIC34 Power", NAU8824_REG_BIAS_ADJ, + NAU8824_DMIC2_EN_SFT, 0, NULL, 0), + + SND_SOC_DAPM_SWITCH("DMIC1 Enable", SND_SOC_NOPM, + 0, 0, &nau8824_adc_ch0_dmic), + SND_SOC_DAPM_SWITCH("DMIC2 Enable", SND_SOC_NOPM, + 0, 0, &nau8824_adc_ch1_dmic), + SND_SOC_DAPM_SWITCH("DMIC3 Enable", SND_SOC_NOPM, + 0, 0, &nau8824_adc_ch2_dmic), + SND_SOC_DAPM_SWITCH("DMIC4 Enable", SND_SOC_NOPM, + 0, 0, &nau8824_adc_ch3_dmic), + + SND_SOC_DAPM_MIXER("Left ADC", NAU8824_REG_POWER_UP_CONTROL, + 12, 0, nau8824_adc_left_mixer, + ARRAY_SIZE(nau8824_adc_left_mixer)), + SND_SOC_DAPM_MIXER("Right ADC", NAU8824_REG_POWER_UP_CONTROL, + 13, 0, nau8824_adc_right_mixer, + ARRAY_SIZE(nau8824_adc_right_mixer)), + + SND_SOC_DAPM_ADC("ADCL", NULL, NAU8824_REG_ANALOG_ADC_2, + NAU8824_ADCL_EN_SFT, 0), + SND_SOC_DAPM_ADC("ADCR", NULL, NAU8824_REG_ANALOG_ADC_2, + NAU8824_ADCR_EN_SFT, 0), + + SND_SOC_DAPM_AIF_OUT("AIFTX", "HiFi Capture", 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_IN("AIFRX", "HiFi Playback", 0, SND_SOC_NOPM, 0, 0), + + SND_SOC_DAPM_DAC("DACL", NULL, NAU8824_REG_RDAC, + NAU8824_DACL_EN_SFT, 0), + SND_SOC_DAPM_SUPPLY("DACL Clock", NAU8824_REG_RDAC, + NAU8824_DACL_CLK_SFT, 0, NULL, 0), + SND_SOC_DAPM_DAC("DACR", NULL, NAU8824_REG_RDAC, + NAU8824_DACR_EN_SFT, 0), + SND_SOC_DAPM_SUPPLY("DACR Clock", NAU8824_REG_RDAC, + NAU8824_DACR_CLK_SFT, 0, NULL, 0), + + SND_SOC_DAPM_MUX("DACL Mux", SND_SOC_NOPM, 0, 0, &nau8824_dacl_mux), + SND_SOC_DAPM_MUX("DACR Mux", SND_SOC_NOPM, 0, 0, &nau8824_dacr_mux), + + SND_SOC_DAPM_PGA_S("Output DACL", 0, NAU8824_REG_CHARGE_PUMP_CONTROL, + 8, 1, nau8824_output_dac_event, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), + SND_SOC_DAPM_PGA_S("Output DACR", 0, NAU8824_REG_CHARGE_PUMP_CONTROL, + 9, 1, nau8824_output_dac_event, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), + + SND_SOC_DAPM_PGA_S("ClassD", 0, NAU8824_REG_CLASSD_GAIN_1, + NAU8824_CLASSD_EN_SFT, 0, nau8824_spk_event, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), + + SND_SOC_DAPM_MIXER("Left Headphone", NAU8824_REG_CLASSG, + NAU8824_CLASSG_LDAC_EN_SFT, 0, nau8824_hp_left_mixer, + ARRAY_SIZE(nau8824_hp_left_mixer)), + SND_SOC_DAPM_MIXER("Right Headphone", NAU8824_REG_CLASSG, + NAU8824_CLASSG_RDAC_EN_SFT, 0, nau8824_hp_right_mixer, + ARRAY_SIZE(nau8824_hp_right_mixer)), + SND_SOC_DAPM_PGA_S("Charge Pump", 1, NAU8824_REG_CHARGE_PUMP_CONTROL, + NAU8824_CHARGE_PUMP_EN_SFT, 0, nau8824_pump_event, + SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), + SND_SOC_DAPM_PGA("Output Driver L", + NAU8824_REG_POWER_UP_CONTROL, 3, 0, NULL, 0), + SND_SOC_DAPM_PGA("Output Driver R", + NAU8824_REG_POWER_UP_CONTROL, 2, 0, NULL, 0), + SND_SOC_DAPM_PGA("Main Driver L", + NAU8824_REG_POWER_UP_CONTROL, 1, 0, NULL, 0), + SND_SOC_DAPM_PGA("Main Driver R", + NAU8824_REG_POWER_UP_CONTROL, 0, 0, NULL, 0), + SND_SOC_DAPM_PGA("HP Boost Driver", NAU8824_REG_BOOST, + NAU8824_HP_BOOST_DIS_SFT, 1, NULL, 0), + SND_SOC_DAPM_PGA("Class G", NAU8824_REG_CLASSG, + NAU8824_CLASSG_EN_SFT, 0, NULL, 0), + + SND_SOC_DAPM_OUTPUT("SPKOUTL"), + SND_SOC_DAPM_OUTPUT("SPKOUTR"), + SND_SOC_DAPM_OUTPUT("HPOL"), + SND_SOC_DAPM_OUTPUT("HPOR"), +}; + +static const struct snd_soc_dapm_route nau8824_dapm_routes[] = { + {"DMIC1 Enable", "Switch", "DMIC1"}, + {"DMIC2 Enable", "Switch", "DMIC2"}, + {"DMIC3 Enable", "Switch", "DMIC3"}, + {"DMIC4 Enable", "Switch", "DMIC4"}, + + {"DMIC1", NULL, "DMIC12 Power"}, + {"DMIC2", NULL, "DMIC12 Power"}, + {"DMIC3", NULL, "DMIC34 Power"}, + {"DMIC4", NULL, "DMIC34 Power"}, + + {"Left ADC", "MIC Switch", "MIC1"}, + {"Left ADC", "HSMIC Switch", "HSMIC1"}, + {"Right ADC", "MIC Switch", "MIC2"}, + {"Right ADC", "HSMIC Switch", "HSMIC2"}, + + {"ADCL", NULL, "Left ADC"}, + {"ADCR", NULL, "Right ADC"}, + + {"AIFTX", NULL, "MICBIAS"}, + {"AIFTX", NULL, "ADCL"}, + {"AIFTX", NULL, "ADCR"}, + {"AIFTX", NULL, "DMIC1 Enable"}, + {"AIFTX", NULL, "DMIC2 Enable"}, + {"AIFTX", NULL, "DMIC3 Enable"}, + {"AIFTX", NULL, "DMIC4 Enable"}, + + {"AIFTX", NULL, "System Clock"}, + {"AIFRX", NULL, "System Clock"}, + + {"DACL", NULL, "AIFRX"}, + {"DACL", NULL, "DACL Clock"}, + {"DACR", NULL, "AIFRX"}, + {"DACR", NULL, "DACR Clock"}, + + {"DACL Mux", "DACL", "DACL"}, + {"DACL Mux", "DACR", "DACR"}, + {"DACR Mux", "DACL", "DACL"}, + {"DACR Mux", "DACR", "DACR"}, + + {"Output DACL", NULL, "DACL Mux"}, + {"Output DACR", NULL, "DACR Mux"}, + + {"ClassD", NULL, "Output DACL"}, + {"ClassD", NULL, "Output DACR"}, + + {"Left Headphone", "DAC Left Switch", "Output DACL"}, + {"Left Headphone", "DAC Right Switch", "Output DACR"}, + {"Right Headphone", "DAC Left Switch", "Output DACL"}, + {"Right Headphone", "DAC Right Switch", "Output DACR"}, + + {"Charge Pump", NULL, "Left Headphone"}, + {"Charge Pump", NULL, "Right Headphone"}, + {"Output Driver L", NULL, "Charge Pump"}, + {"Output Driver R", NULL, "Charge Pump"}, + {"Main Driver L", NULL, "Output Driver L"}, + {"Main Driver R", NULL, "Output Driver R"}, + {"Class G", NULL, "Main Driver L"}, + {"Class G", NULL, "Main Driver R"}, + {"HP Boost Driver", NULL, "Class G"}, + + {"SPKOUTL", NULL, "ClassD"}, + {"SPKOUTR", NULL, "ClassD"}, + {"HPOL", NULL, "HP Boost Driver"}, + {"HPOR", NULL, "HP Boost Driver"}, +}; + +static bool nau8824_is_jack_inserted(struct nau8824 *nau8824) +{ + struct snd_soc_jack *jack = nau8824->jack; + bool insert = FALSE; + + if (nau8824->irq && jack) + insert = jack->status & SND_JACK_HEADPHONE; + + return insert; +} + +static void nau8824_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, NAU8824_REG_IRQ, &active_irq); + for (i = 0; i < NAU8824_REG_DATA_LEN; i++) { + clear_irq = (0x1 << i); + if (active_irq & clear_irq) + regmap_write(regmap, + NAU8824_REG_CLEAR_INT_REG, clear_irq); + } +} + +static void nau8824_eject_jack(struct nau8824 *nau8824) +{ + struct snd_soc_dapm_context *dapm = nau8824->dapm; + struct regmap *regmap = nau8824->regmap; + + /* Clear all interruption status */ + nau8824_int_status_clear_all(regmap); + + snd_soc_dapm_disable_pin(dapm, "SAR"); + snd_soc_dapm_disable_pin(dapm, "MICBIAS"); + snd_soc_dapm_sync(dapm); + + /* Enable the insertion interruption, disable the ejection + * interruption, and then bypass de-bounce circuit. + */ + regmap_update_bits(regmap, NAU8824_REG_INTERRUPT_SETTING, + NAU8824_IRQ_KEY_RELEASE_DIS | NAU8824_IRQ_KEY_SHORT_PRESS_DIS | + NAU8824_IRQ_EJECT_DIS | NAU8824_IRQ_INSERT_DIS, + NAU8824_IRQ_KEY_RELEASE_DIS | NAU8824_IRQ_KEY_SHORT_PRESS_DIS | + NAU8824_IRQ_EJECT_DIS); + regmap_update_bits(regmap, NAU8824_REG_INTERRUPT_SETTING_1, + NAU8824_IRQ_INSERT_EN | NAU8824_IRQ_EJECT_EN, + NAU8824_IRQ_INSERT_EN); + regmap_update_bits(regmap, NAU8824_REG_ENA_CTRL, + NAU8824_JD_SLEEP_MODE, NAU8824_JD_SLEEP_MODE); + + /* Close clock for jack type detection at manual mode */ + nau8824_config_sysclk(nau8824, NAU8824_CLK_DIS, 0); +} + +static void nau8824_jdet_work(struct work_struct *work) +{ + struct nau8824 *nau8824 = container_of( + work, struct nau8824, jdet_work); + struct snd_soc_dapm_context *dapm = nau8824->dapm; + struct regmap *regmap = nau8824->regmap; + int adc_value, event = 0, event_mask = 0; + + snd_soc_dapm_force_enable_pin(dapm, "MICBIAS"); + snd_soc_dapm_force_enable_pin(dapm, "SAR"); + snd_soc_dapm_sync(dapm); + + msleep(100); + + regmap_read(regmap, NAU8824_REG_SAR_ADC_DATA_OUT, &adc_value); + adc_value = adc_value & NAU8824_SAR_ADC_DATA_MASK; + dev_dbg(nau8824->dev, "SAR ADC data 0x%02x\n", adc_value); + if (adc_value < HEADSET_SARADC_THD) { + event |= SND_JACK_HEADPHONE; + + snd_soc_dapm_disable_pin(dapm, "SAR"); + snd_soc_dapm_disable_pin(dapm, "MICBIAS"); + snd_soc_dapm_sync(dapm); + } else { + event |= SND_JACK_HEADSET; + } + event_mask |= SND_JACK_HEADSET; + snd_soc_jack_report(nau8824->jack, event, event_mask); + + nau8824_sema_release(nau8824); +} + +static void nau8824_setup_auto_irq(struct nau8824 *nau8824) +{ + struct regmap *regmap = nau8824->regmap; + + /* Enable jack ejection, short key press and release interruption. */ + regmap_update_bits(regmap, NAU8824_REG_INTERRUPT_SETTING_1, + NAU8824_IRQ_INSERT_EN | NAU8824_IRQ_EJECT_EN, + NAU8824_IRQ_EJECT_EN); + regmap_update_bits(regmap, NAU8824_REG_INTERRUPT_SETTING, + NAU8824_IRQ_EJECT_DIS | NAU8824_IRQ_KEY_RELEASE_DIS | + NAU8824_IRQ_KEY_SHORT_PRESS_DIS, 0); + /* Enable internal VCO needed for interruptions */ + nau8824_config_sysclk(nau8824, NAU8824_CLK_INTERNAL, 0); + regmap_update_bits(regmap, NAU8824_REG_ENA_CTRL, + NAU8824_JD_SLEEP_MODE, 0); +} + +static int nau8824_button_decode(int value) +{ + int buttons = 0; + + /* The chip supports up to 8 buttons, but ALSA defines + * only 6 buttons. + */ + if (value & BIT(0)) + buttons |= SND_JACK_BTN_0; + if (value & BIT(1)) + buttons |= SND_JACK_BTN_1; + if (value & BIT(2)) + buttons |= SND_JACK_BTN_2; + if (value & BIT(3)) + buttons |= SND_JACK_BTN_3; + if (value & BIT(4)) + buttons |= SND_JACK_BTN_4; + if (value & BIT(5)) + buttons |= SND_JACK_BTN_5; + + return buttons; +} + +#define NAU8824_BUTTONS (SND_JACK_BTN_0 | SND_JACK_BTN_1 | \ + SND_JACK_BTN_2 | SND_JACK_BTN_3) + +static irqreturn_t nau8824_interrupt(int irq, void *data) +{ + struct nau8824 *nau8824 = (struct nau8824 *)data; + struct regmap *regmap = nau8824->regmap; + int active_irq, clear_irq = 0, event = 0, event_mask = 0; + + if (regmap_read(regmap, NAU8824_REG_IRQ, &active_irq)) { + dev_err(nau8824->dev, "failed to read irq status\n"); + return IRQ_NONE; + } + dev_dbg(nau8824->dev, "IRQ %x\n", active_irq); + + if (active_irq & NAU8824_JACK_EJECTION_DETECTED) { + /* cancel jack detection */ + cancel_work_sync(&nau8824->jdet_work); + + nau8824_eject_jack(nau8824); + event_mask |= SND_JACK_HEADSET; + clear_irq = NAU8824_JACK_EJECTION_DETECTED; + } else if (active_irq & NAU8824_KEY_SHORT_PRESS_IRQ) { + int key_status, button_pressed; + + regmap_read(regmap, NAU8824_REG_CLEAR_INT_REG, + &key_status); + + /* lower 8 bits of the register are for pressed keys */ + button_pressed = nau8824_button_decode(key_status); + + event |= button_pressed; + dev_dbg(nau8824->dev, "button %x pressed\n", event); + event_mask |= NAU8824_BUTTONS; + clear_irq = NAU8824_KEY_SHORT_PRESS_IRQ; + } else if (active_irq & NAU8824_KEY_RELEASE_IRQ) { + event_mask = NAU8824_BUTTONS; + clear_irq = NAU8824_KEY_RELEASE_IRQ; + } else if (active_irq & NAU8824_JACK_INSERTION_DETECTED) { + /* Turn off insertion interruption at manual mode */ + regmap_update_bits(regmap, + NAU8824_REG_INTERRUPT_SETTING, + NAU8824_IRQ_INSERT_DIS, + NAU8824_IRQ_INSERT_DIS); + regmap_update_bits(regmap, + NAU8824_REG_INTERRUPT_SETTING_1, + NAU8824_IRQ_INSERT_EN, 0); + /* detect microphone and jack type */ + cancel_work_sync(&nau8824->jdet_work); + schedule_work(&nau8824->jdet_work); + + /* Enable interruption for jack type detection at audo + * mode which can detect microphone and jack type. + */ + nau8824_setup_auto_irq(nau8824); + } + + if (!clear_irq) + clear_irq = active_irq; + /* clears the rightmost interruption */ + regmap_write(regmap, NAU8824_REG_CLEAR_INT_REG, clear_irq); + + if (event_mask) + snd_soc_jack_report(nau8824->jack, event, event_mask); + + return IRQ_HANDLED; +} + +static int nau8824_clock_check(struct nau8824 *nau8824, + int stream, int rate, int osr) +{ + int osrate; + + 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 * osr > CLK_DA_AD_MAX) { + dev_err(nau8824->dev, "exceed the maximum frequency of CLK_ADC or CLK_DAC\n"); + return -EINVAL; + } + + return 0; +} + +static int nau8824_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) +{ + struct snd_soc_codec *codec = dai->codec; + struct nau8824 *nau8824 = snd_soc_codec_get_drvdata(codec); + unsigned int val_len = 0, osr; + + nau8824_sema_acquire(nau8824, 3 * HZ); + + /* 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(nau8824->regmap, + NAU8824_REG_DAC_FILTER_CTRL_1, &osr); + osr &= NAU8824_DAC_OVERSAMPLE_MASK; + if (nau8824_clock_check(nau8824, substream->stream, + params_rate(params), osr)) + return -EINVAL; + regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER, + NAU8824_CLK_DAC_SRC_MASK, + osr_dac_sel[osr].clk_src << NAU8824_CLK_DAC_SRC_SFT); + } else { + regmap_read(nau8824->regmap, + NAU8824_REG_ADC_FILTER_CTRL, &osr); + osr &= NAU8824_ADC_SYNC_DOWN_MASK; + if (nau8824_clock_check(nau8824, substream->stream, + params_rate(params), osr)) + return -EINVAL; + regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER, + NAU8824_CLK_ADC_SRC_MASK, + osr_adc_sel[osr].clk_src << NAU8824_CLK_ADC_SRC_SFT); + } + + switch (params_width(params)) { + case 16: + val_len |= NAU8824_I2S_DL_16; + break; + case 20: + val_len |= NAU8824_I2S_DL_20; + break; + case 24: + val_len |= NAU8824_I2S_DL_24; + break; + case 32: + val_len |= NAU8824_I2S_DL_32; + break; + default: + return -EINVAL; + } + + regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_I2S_PCM_CTRL_1, + NAU8824_I2S_DL_MASK, val_len); + + nau8824_sema_release(nau8824); + + return 0; +} + +static int nau8824_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct snd_soc_codec *codec = dai->codec; + struct nau8824 *nau8824 = snd_soc_codec_get_drvdata(codec); + unsigned int ctrl1_val = 0, ctrl2_val = 0; + + nau8824_sema_acquire(nau8824, 3 * HZ); + + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBM_CFM: + ctrl2_val |= NAU8824_I2S_MS_MASTER; + break; + case SND_SOC_DAIFMT_CBS_CFS: + 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 |= NAU8824_I2S_BP_INV; + break; + default: + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + ctrl1_val |= NAU8824_I2S_DF_I2S; + break; + case SND_SOC_DAIFMT_LEFT_J: + ctrl1_val |= NAU8824_I2S_DF_LEFT; + break; + case SND_SOC_DAIFMT_RIGHT_J: + ctrl1_val |= NAU8824_I2S_DF_RIGTH; + break; + case SND_SOC_DAIFMT_DSP_A: + ctrl1_val |= NAU8824_I2S_DF_PCM_AB; + break; + case SND_SOC_DAIFMT_DSP_B: + ctrl1_val |= NAU8824_I2S_DF_PCM_AB; + ctrl1_val |= NAU8824_I2S_PCMB_EN; + break; + default: + return -EINVAL; + } + + regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_I2S_PCM_CTRL_1, + NAU8824_I2S_DL_MASK | NAU8824_I2S_DF_MASK | + NAU8824_I2S_BP_MASK | NAU8824_I2S_PCMB_EN, ctrl1_val); + regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_I2S_PCM_CTRL_2, + NAU8824_I2S_MS_MASK, ctrl2_val); + + nau8824_sema_release(nau8824); + + return 0; +} + +/** + * nau8824_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 nau8824_calc_fll_param(unsigned int fll_in, + unsigned int fs, struct nau8824_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 / NAU8824_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 - 124MHz 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 = 256 * 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 16-bit fractional + * input based on FDCO, FREF and FLL ratio. + */ + fvco = div_u64(fvco_max << 16, fref * fll_param->ratio); + fll_param->fll_int = (fvco >> 16) & 0x3FF; + fll_param->fll_frac = fvco & 0xFFFF; + return 0; +} + +static void nau8824_fll_apply(struct regmap *regmap, + struct nau8824_fll *fll_param) +{ + regmap_update_bits(regmap, NAU8824_REG_CLK_DIVIDER, + NAU8824_CLK_SRC_MASK | NAU8824_CLK_MCLK_SRC_MASK, + NAU8824_CLK_SRC_MCLK | fll_param->mclk_src); + regmap_update_bits(regmap, NAU8824_REG_FLL1, + NAU8824_FLL_RATIO_MASK, fll_param->ratio); + /* FLL 16-bit fractional input */ + regmap_write(regmap, NAU8824_REG_FLL2, fll_param->fll_frac); + /* FLL 10-bit integer input */ + regmap_update_bits(regmap, NAU8824_REG_FLL3, + NAU8824_FLL_INTEGER_MASK, fll_param->fll_int); + /* FLL pre-scaler */ + regmap_update_bits(regmap, NAU8824_REG_FLL4, + NAU8824_FLL_REF_DIV_MASK, + fll_param->clk_ref_div << NAU8824_FLL_REF_DIV_SFT); + /* select divided VCO input */ + regmap_update_bits(regmap, NAU8824_REG_FLL5, + NAU8824_FLL_CLK_SW_MASK, NAU8824_FLL_CLK_SW_REF); + /* Disable free-running mode */ + regmap_update_bits(regmap, + NAU8824_REG_FLL6, NAU8824_DCO_EN, 0); + if (fll_param->fll_frac) { + regmap_update_bits(regmap, NAU8824_REG_FLL5, + NAU8824_FLL_PDB_DAC_EN | NAU8824_FLL_LOOP_FTR_EN | + NAU8824_FLL_FTR_SW_MASK, + NAU8824_FLL_PDB_DAC_EN | NAU8824_FLL_LOOP_FTR_EN | + NAU8824_FLL_FTR_SW_FILTER); + regmap_update_bits(regmap, NAU8824_REG_FLL6, + NAU8824_SDM_EN, NAU8824_SDM_EN); + } else { + regmap_update_bits(regmap, NAU8824_REG_FLL5, + NAU8824_FLL_PDB_DAC_EN | NAU8824_FLL_LOOP_FTR_EN | + NAU8824_FLL_FTR_SW_MASK, NAU8824_FLL_FTR_SW_ACCU); + regmap_update_bits(regmap, + NAU8824_REG_FLL6, NAU8824_SDM_EN, 0); + } +} + +/* freq_out must be 256*Fs in order to achieve the best performance */ +static int nau8824_set_pll(struct snd_soc_codec *codec, int pll_id, int source, + unsigned int freq_in, unsigned int freq_out) +{ + struct nau8824 *nau8824 = snd_soc_codec_get_drvdata(codec); + struct nau8824_fll fll_param; + int ret, fs; + + fs = freq_out / 256; + ret = nau8824_calc_fll_param(freq_in, fs, &fll_param); + if (ret < 0) { + dev_err(nau8824->dev, "Unsupported input clock %d\n", freq_in); + return ret; + } + dev_dbg(nau8824->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); + + nau8824_fll_apply(nau8824->regmap, &fll_param); + mdelay(2); + regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER, + NAU8824_CLK_SRC_MASK, NAU8824_CLK_SRC_VCO); + return 0; +} + +static int nau8824_config_sysclk(struct nau8824 *nau8824, + int clk_id, unsigned int freq) +{ + struct regmap *regmap = nau8824->regmap; + + switch (clk_id) { + case NAU8824_CLK_DIS: + regmap_update_bits(regmap, NAU8824_REG_CLK_DIVIDER, + NAU8824_CLK_SRC_MASK, NAU8824_CLK_SRC_MCLK); + regmap_update_bits(regmap, NAU8824_REG_FLL6, + NAU8824_DCO_EN, 0); + break; + + case NAU8824_CLK_MCLK: + nau8824_sema_acquire(nau8824, 3 * HZ); + regmap_update_bits(regmap, NAU8824_REG_CLK_DIVIDER, + NAU8824_CLK_SRC_MASK, NAU8824_CLK_SRC_MCLK); + regmap_update_bits(regmap, NAU8824_REG_FLL6, + NAU8824_DCO_EN, 0); + nau8824_sema_release(nau8824); + break; + + case NAU8824_CLK_INTERNAL: + regmap_update_bits(regmap, NAU8824_REG_FLL6, + NAU8824_DCO_EN, NAU8824_DCO_EN); + regmap_update_bits(regmap, NAU8824_REG_CLK_DIVIDER, + NAU8824_CLK_SRC_MASK, NAU8824_CLK_SRC_VCO); + break; + + case NAU8824_CLK_FLL_MCLK: + nau8824_sema_acquire(nau8824, 3 * HZ); + regmap_update_bits(regmap, NAU8824_REG_FLL3, + NAU8824_FLL_CLK_SRC_MASK, NAU8824_FLL_CLK_SRC_MCLK); + nau8824_sema_release(nau8824); + break; + + case NAU8824_CLK_FLL_BLK: + nau8824_sema_acquire(nau8824, 3 * HZ); + regmap_update_bits(regmap, NAU8824_REG_FLL3, + NAU8824_FLL_CLK_SRC_MASK, NAU8824_FLL_CLK_SRC_BLK); + nau8824_sema_release(nau8824); + break; + + case NAU8824_CLK_FLL_FS: + nau8824_sema_acquire(nau8824, 3 * HZ); + regmap_update_bits(regmap, NAU8824_REG_FLL3, + NAU8824_FLL_CLK_SRC_MASK, NAU8824_FLL_CLK_SRC_FS); + nau8824_sema_release(nau8824); + break; + + default: + dev_err(nau8824->dev, "Invalid clock id (%d)\n", clk_id); + return -EINVAL; + } + + dev_dbg(nau8824->dev, "Sysclk is %dHz and clock id is %d\n", freq, + clk_id); + + return 0; +} + +static int nau8824_set_sysclk(struct snd_soc_codec *codec, + int clk_id, int source, unsigned int freq, int dir) +{ + struct nau8824 *nau8824 = snd_soc_codec_get_drvdata(codec); + + return nau8824_config_sysclk(nau8824, clk_id, freq); +} + +static void nau8824_resume_setup(struct nau8824 *nau8824) +{ + nau8824_config_sysclk(nau8824, NAU8824_CLK_DIS, 0); + if (nau8824->irq) { + /* Clear all interruption status */ + nau8824_int_status_clear_all(nau8824->regmap); + /* Enable jack detection at sleep mode, insertion detection, + * and ejection detection. + */ + regmap_update_bits(nau8824->regmap, NAU8824_REG_ENA_CTRL, + NAU8824_JD_SLEEP_MODE, NAU8824_JD_SLEEP_MODE); + regmap_update_bits(nau8824->regmap, + NAU8824_REG_INTERRUPT_SETTING_1, + NAU8824_IRQ_EJECT_EN | NAU8824_IRQ_INSERT_EN, + NAU8824_IRQ_EJECT_EN | NAU8824_IRQ_INSERT_EN); + regmap_update_bits(nau8824->regmap, + NAU8824_REG_INTERRUPT_SETTING, + NAU8824_IRQ_EJECT_DIS | NAU8824_IRQ_INSERT_DIS, 0); + } +} + +static int nau8824_set_bias_level(struct snd_soc_codec *codec, + enum snd_soc_bias_level level) +{ + struct nau8824 *nau8824 = snd_soc_codec_get_drvdata(codec); + + switch (level) { + case SND_SOC_BIAS_ON: + break; + + case SND_SOC_BIAS_PREPARE: + break; + + case SND_SOC_BIAS_STANDBY: + if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) { + /* Setup codec configuration after resume */ + nau8824_resume_setup(nau8824); + } + break; + + case SND_SOC_BIAS_OFF: + regmap_update_bits(nau8824->regmap, + NAU8824_REG_INTERRUPT_SETTING, 0x3ff, 0x3ff); + regmap_update_bits(nau8824->regmap, + NAU8824_REG_INTERRUPT_SETTING_1, + NAU8824_IRQ_EJECT_EN | NAU8824_IRQ_INSERT_EN, 0); + break; + } + + return 0; +} + +static int nau8824_codec_probe(struct snd_soc_codec *codec) +{ + struct nau8824 *nau8824 = snd_soc_codec_get_drvdata(codec); + struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec); + + nau8824->dapm = dapm; + snd_soc_dapm_sync(nau8824->dapm); + + return 0; +} + +static int __maybe_unused nau8824_suspend(struct snd_soc_codec *codec) +{ + struct nau8824 *nau8824 = snd_soc_codec_get_drvdata(codec); + + if (nau8824->irq) { + disable_irq(nau8824->irq); + snd_soc_codec_force_bias_level(codec, SND_SOC_BIAS_OFF); + } + regcache_cache_only(nau8824->regmap, true); + regcache_mark_dirty(nau8824->regmap); + + return 0; +} + +static int __maybe_unused nau8824_resume(struct snd_soc_codec *codec) +{ + struct nau8824 *nau8824 = snd_soc_codec_get_drvdata(codec); + + regcache_cache_only(nau8824->regmap, false); + regcache_sync(nau8824->regmap); + if (nau8824->irq) { + nau8824_sema_acquire(nau8824, 0); + enable_irq(nau8824->irq); + } + + return 0; +} + +static struct snd_soc_codec_driver nau8824_codec_driver = { + .probe = nau8824_codec_probe, + .set_sysclk = nau8824_set_sysclk, + .set_pll = nau8824_set_pll, + .set_bias_level = nau8824_set_bias_level, + .suspend = nau8824_suspend, + .resume = nau8824_resume, + .suspend_bias_off = true, + + .component_driver = { + .controls = nau8824_snd_controls, + .num_controls = ARRAY_SIZE(nau8824_snd_controls), + .dapm_widgets = nau8824_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(nau8824_dapm_widgets), + .dapm_routes = nau8824_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(nau8824_dapm_routes), + }, +}; + +static const struct snd_soc_dai_ops nau8824_dai_ops = { + .hw_params = nau8824_hw_params, + .set_fmt = nau8824_set_fmt, +}; + +#define NAU8824_RATES SNDRV_PCM_RATE_8000_192000 +#define NAU8824_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 nau8824_dai = { + .name = NAU8824_CODEC_DAI, + .playback = { + .stream_name = "Playback", + .channels_min = 1, + .channels_max = 2, + .rates = NAU8824_RATES, + .formats = NAU8824_FORMATS, + }, + .capture = { + .stream_name = "Capture", + .channels_min = 1, + .channels_max = 2, + .rates = NAU8824_RATES, + .formats = NAU8824_FORMATS, + }, + .ops = &nau8824_dai_ops, +}; + +static const struct regmap_config nau8824_regmap_config = { + .val_bits = NAU8824_REG_ADDR_LEN, + .reg_bits = NAU8824_REG_DATA_LEN, + + .max_register = NAU8824_REG_MAX, + .readable_reg = nau8824_readable_reg, + .writeable_reg = nau8824_writeable_reg, + .volatile_reg = nau8824_volatile_reg, + + .cache_type = REGCACHE_RBTREE, + .reg_defaults = nau8824_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(nau8824_reg_defaults), +}; + +/** + * nau8824_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 nau8824_enable_jack_detect(struct snd_soc_codec *codec, + struct snd_soc_jack *jack) +{ + struct nau8824 *nau8824 = snd_soc_codec_get_drvdata(codec); + + nau8824->jack = jack; + + return 0; +} +EXPORT_SYMBOL_GPL(nau8824_enable_jack_detect); + +static void nau8824_reset_chip(struct regmap *regmap) +{ + regmap_write(regmap, NAU8824_REG_RESET, 0x00); + regmap_write(regmap, NAU8824_REG_RESET, 0x00); +} + +static void nau8824_setup_buttons(struct nau8824 *nau8824) +{ + struct regmap *regmap = nau8824->regmap; + + regmap_update_bits(regmap, NAU8824_REG_SAR_ADC, + NAU8824_SAR_TRACKING_GAIN_MASK, + nau8824->sar_voltage << NAU8824_SAR_TRACKING_GAIN_SFT); + regmap_update_bits(regmap, NAU8824_REG_SAR_ADC, + NAU8824_SAR_COMPARE_TIME_MASK, + nau8824->sar_compare_time << NAU8824_SAR_COMPARE_TIME_SFT); + regmap_update_bits(regmap, NAU8824_REG_SAR_ADC, + NAU8824_SAR_SAMPLING_TIME_MASK, + nau8824->sar_sampling_time << NAU8824_SAR_SAMPLING_TIME_SFT); + + regmap_update_bits(regmap, NAU8824_REG_VDET_COEFFICIENT, + NAU8824_LEVELS_NR_MASK, + (nau8824->sar_threshold_num - 1) << NAU8824_LEVELS_NR_SFT); + regmap_update_bits(regmap, NAU8824_REG_VDET_COEFFICIENT, + NAU8824_HYSTERESIS_MASK, + nau8824->sar_hysteresis << NAU8824_HYSTERESIS_SFT); + regmap_update_bits(regmap, NAU8824_REG_VDET_COEFFICIENT, + NAU8824_SHORTKEY_DEBOUNCE_MASK, + nau8824->key_debounce << NAU8824_SHORTKEY_DEBOUNCE_SFT); + + regmap_write(regmap, NAU8824_REG_VDET_THRESHOLD_1, + (nau8824->sar_threshold[0] << 8) | nau8824->sar_threshold[1]); + regmap_write(regmap, NAU8824_REG_VDET_THRESHOLD_2, + (nau8824->sar_threshold[2] << 8) | nau8824->sar_threshold[3]); + regmap_write(regmap, NAU8824_REG_VDET_THRESHOLD_3, + (nau8824->sar_threshold[4] << 8) | nau8824->sar_threshold[5]); + regmap_write(regmap, NAU8824_REG_VDET_THRESHOLD_4, + (nau8824->sar_threshold[6] << 8) | nau8824->sar_threshold[7]); +} + +static void nau8824_init_regs(struct nau8824 *nau8824) +{ + struct regmap *regmap = nau8824->regmap; + + /* Enable Bias/VMID/VMID Tieoff */ + regmap_update_bits(regmap, NAU8824_REG_BIAS_ADJ, + NAU8824_VMID | NAU8824_VMID_SEL_MASK, NAU8824_VMID | + (nau8824->vref_impedance << NAU8824_VMID_SEL_SFT)); + regmap_update_bits(regmap, NAU8824_REG_BOOST, + NAU8824_GLOBAL_BIAS_EN, NAU8824_GLOBAL_BIAS_EN); + mdelay(2); + regmap_update_bits(regmap, NAU8824_REG_MIC_BIAS, + NAU8824_MICBIAS_VOLTAGE_MASK, nau8824->micbias_voltage); + /* Disable Boost Driver, Automatic Short circuit protection enable */ + regmap_update_bits(regmap, NAU8824_REG_BOOST, + NAU8824_PRECHARGE_DIS | NAU8824_HP_BOOST_DIS | + NAU8824_HP_BOOST_G_DIS | NAU8824_SHORT_SHUTDOWN_EN, + NAU8824_PRECHARGE_DIS | NAU8824_HP_BOOST_DIS | + NAU8824_HP_BOOST_G_DIS | NAU8824_SHORT_SHUTDOWN_EN); + /* Scaling for ADC and DAC clock */ + regmap_update_bits(regmap, NAU8824_REG_CLK_DIVIDER, + NAU8824_CLK_ADC_SRC_MASK | NAU8824_CLK_DAC_SRC_MASK, + (0x1 << NAU8824_CLK_ADC_SRC_SFT) | + (0x1 << NAU8824_CLK_DAC_SRC_SFT)); + regmap_update_bits(regmap, NAU8824_REG_DAC_MUTE_CTRL, + NAU8824_DAC_ZC_EN, NAU8824_DAC_ZC_EN); + regmap_update_bits(regmap, NAU8824_REG_ENA_CTRL, + NAU8824_DAC_CH1_EN | NAU8824_DAC_CH0_EN | + NAU8824_ADC_CH0_EN | NAU8824_ADC_CH1_EN | + NAU8824_ADC_CH2_EN | NAU8824_ADC_CH3_EN, + NAU8824_DAC_CH1_EN | NAU8824_DAC_CH0_EN | + NAU8824_ADC_CH0_EN | NAU8824_ADC_CH1_EN | + NAU8824_ADC_CH2_EN | NAU8824_ADC_CH3_EN); + regmap_update_bits(regmap, NAU8824_REG_CLK_GATING_ENA, + NAU8824_CLK_ADC_CH23_EN | NAU8824_CLK_ADC_CH01_EN | + NAU8824_CLK_DAC_CH1_EN | NAU8824_CLK_DAC_CH0_EN | + NAU8824_CLK_I2S_EN | NAU8824_CLK_GAIN_EN | + NAU8824_CLK_SAR_EN | NAU8824_CLK_DMIC_CH23_EN, + NAU8824_CLK_ADC_CH23_EN | NAU8824_CLK_ADC_CH01_EN | + NAU8824_CLK_DAC_CH1_EN | NAU8824_CLK_DAC_CH0_EN | + NAU8824_CLK_I2S_EN | NAU8824_CLK_GAIN_EN | + NAU8824_CLK_SAR_EN | NAU8824_CLK_DMIC_CH23_EN); + /* Class G timer 64ms */ + regmap_update_bits(regmap, NAU8824_REG_CLASSG, + NAU8824_CLASSG_TIMER_MASK, + 0x20 << NAU8824_CLASSG_TIMER_SFT); + regmap_update_bits(regmap, NAU8824_REG_TRIM_SETTINGS, + NAU8824_DRV_CURR_INC, NAU8824_DRV_CURR_INC); + /* Disable DACR/L power */ + regmap_update_bits(regmap, NAU8824_REG_CHARGE_PUMP_CONTROL, + NAU8824_SPKR_PULL_DOWN | NAU8824_SPKL_PULL_DOWN | + NAU8824_POWER_DOWN_DACR | NAU8824_POWER_DOWN_DACL, + NAU8824_SPKR_PULL_DOWN | NAU8824_SPKL_PULL_DOWN | + NAU8824_POWER_DOWN_DACR | NAU8824_POWER_DOWN_DACL); + /* 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, NAU8824_REG_ENABLE_LO, + NAU8824_TEST_DAC_EN, NAU8824_TEST_DAC_EN); + /* Config L/R channel */ + regmap_update_bits(regmap, NAU8824_REG_DAC_CH0_DGAIN_CTRL, + NAU8824_DAC_CH0_SEL_MASK, NAU8824_DAC_CH0_SEL_I2S0); + regmap_update_bits(regmap, NAU8824_REG_DAC_CH1_DGAIN_CTRL, + NAU8824_DAC_CH1_SEL_MASK, NAU8824_DAC_CH1_SEL_I2S1); + regmap_update_bits(regmap, NAU8824_REG_ENABLE_LO, + NAU8824_DACR_HPR_EN | NAU8824_DACL_HPL_EN, + NAU8824_DACR_HPR_EN | NAU8824_DACL_HPL_EN); + /* Default oversampling/decimations settings are unusable + * (audible hiss). Set it to something better. + */ + regmap_update_bits(regmap, NAU8824_REG_ADC_FILTER_CTRL, + NAU8824_ADC_SYNC_DOWN_MASK, NAU8824_ADC_SYNC_DOWN_64); + regmap_update_bits(regmap, NAU8824_REG_DAC_FILTER_CTRL_1, + NAU8824_DAC_CICCLP_OFF | NAU8824_DAC_OVERSAMPLE_MASK, + NAU8824_DAC_CICCLP_OFF | NAU8824_DAC_OVERSAMPLE_64); + /* Class D gain 9db for 1R and 2L */ + regmap_update_bits(regmap, NAU8824_REG_CLASSD_GAIN_1, + NAU8824_CLASSD_GAIN_1R_MASK, + (0xa << NAU8824_CLASSD_GAIN_1R_SFT)); + regmap_update_bits(regmap, NAU8824_REG_CLASSD_GAIN_2, + NAU8824_CLASSD_GAIN_2L_MASK, 0xa); + /* DAC clock delay 2ns, VREF */ + regmap_update_bits(regmap, NAU8824_REG_RDAC, + NAU8824_RDAC_CLK_DELAY_MASK | NAU8824_RDAC_VREF_MASK, + (0x2 << NAU8824_RDAC_CLK_DELAY_SFT) | + (0x3 << NAU8824_RDAC_VREF_SFT)); + /* PGA input mode selection */ + regmap_update_bits(regmap, NAU8824_REG_FEPGA, + NAU8824_FEPGA_MODEL_SHORT_EN | NAU8824_FEPGA_MODER_SHORT_EN, + NAU8824_FEPGA_MODEL_SHORT_EN | NAU8824_FEPGA_MODER_SHORT_EN); + /* Boost FEPGA 20dB */ + regmap_update_bits(regmap, NAU8824_REG_FEPGA_II, + NAU8824_FEPGA_GAINL_MASK | NAU8824_FEPGA_GAINR_MASK, + 0xa | (0xa << NAU8824_FEPGA_GAINR_SFT)); + /* Digital microphone control */ + regmap_update_bits(regmap, NAU8824_REG_ANALOG_CONTROL_1, + NAU8824_DMIC_CLK_DRV_STRG | NAU8824_DMIC_CLK_SLEW_FAST, + NAU8824_DMIC_CLK_DRV_STRG | NAU8824_DMIC_CLK_SLEW_FAST); + regmap_update_bits(nau8824->regmap, + NAU8824_REG_JACK_DET_CTRL, NAU8824_JACK_EJECT_DT_MASK, + (nau8824->jack_eject_debounce << NAU8824_JACK_EJECT_DT_SFT)); + if (nau8824->sar_threshold_num) + nau8824_setup_buttons(nau8824); +} + +static int nau8824_setup_irq(struct nau8824 *nau8824) +{ + int ret; + + /* Disable interruption before codec initiation done */ + regmap_update_bits(nau8824->regmap, + NAU8824_REG_INTERRUPT_SETTING, 0x3ff, 0x3ff); + regmap_update_bits(nau8824->regmap, NAU8824_REG_INTERRUPT_SETTING_1, + NAU8824_IRQ_EJECT_EN | NAU8824_IRQ_INSERT_EN, 0); + + /* Initiate jack detection work queue */ + INIT_WORK(&nau8824->jdet_work, nau8824_jdet_work); + ret = devm_request_threaded_irq(nau8824->dev, nau8824->irq, NULL, + nau8824_interrupt, IRQF_TRIGGER_LOW | IRQF_ONESHOT, + "nau8824", nau8824); + if (ret) { + dev_err(nau8824->dev, "Cannot request irq %d (%d)\n", + nau8824->irq, ret); + } + + return ret; +} + +static void nau8824_print_device_properties(struct nau8824 *nau8824) +{ + struct device *dev = nau8824->dev; + int i; + + dev_dbg(dev, "micbias-voltage: %d\n", nau8824->micbias_voltage); + dev_dbg(dev, "vref-impedance: %d\n", nau8824->vref_impedance); + + dev_dbg(dev, "sar-threshold-num: %d\n", nau8824->sar_threshold_num); + for (i = 0; i < nau8824->sar_threshold_num; i++) + dev_dbg(dev, "sar-threshold[%d]=%x\n", i, + nau8824->sar_threshold[i]); + + dev_dbg(dev, "sar-hysteresis: %d\n", nau8824->sar_hysteresis); + dev_dbg(dev, "sar-voltage: %d\n", nau8824->sar_voltage); + dev_dbg(dev, "sar-compare-time: %d\n", nau8824->sar_compare_time); + dev_dbg(dev, "sar-sampling-time: %d\n", nau8824->sar_sampling_time); + dev_dbg(dev, "short-key-debounce: %d\n", nau8824->key_debounce); + dev_dbg(dev, "jack-eject-debounce: %d\n", + nau8824->jack_eject_debounce); +} + +static int nau8824_read_device_properties(struct device *dev, + struct nau8824 *nau8824) { + + device_property_read_u32(dev, "nuvoton,micbias-voltage", + &nau8824->micbias_voltage); + device_property_read_u32(dev, "nuvoton,vref-impedance", + &nau8824->vref_impedance); + device_property_read_u32(dev, "nuvoton,sar-threshold-num", + &nau8824->sar_threshold_num); + device_property_read_u32_array(dev, "nuvoton,sar-threshold", + nau8824->sar_threshold, nau8824->sar_threshold_num); + device_property_read_u32(dev, "nuvoton,sar-hysteresis", + &nau8824->sar_hysteresis); + device_property_read_u32(dev, "nuvoton,sar-voltage", + &nau8824->sar_voltage); + device_property_read_u32(dev, "nuvoton,sar-compare-time", + &nau8824->sar_compare_time); + device_property_read_u32(dev, "nuvoton,sar-sampling-time", + &nau8824->sar_sampling_time); + device_property_read_u32(dev, "nuvoton,short-key-debounce", + &nau8824->key_debounce); + device_property_read_u32(dev, "nuvoton,jack-eject-debounce", + &nau8824->jack_eject_debounce); + + return 0; +} + +static int nau8824_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct device *dev = &i2c->dev; + struct nau8824 *nau8824 = dev_get_platdata(dev); + int ret, value; + + if (!nau8824) { + nau8824 = devm_kzalloc(dev, sizeof(*nau8824), GFP_KERNEL); + if (!nau8824) + return -ENOMEM; + ret = nau8824_read_device_properties(dev, nau8824); + if (ret) + return ret; + } + i2c_set_clientdata(i2c, nau8824); + + nau8824->regmap = devm_regmap_init_i2c(i2c, &nau8824_regmap_config); + if (IS_ERR(nau8824->regmap)) + return PTR_ERR(nau8824->regmap); + nau8824->dev = dev; + nau8824->irq = i2c->irq; + sema_init(&nau8824->jd_sem, 1); + + nau8824_print_device_properties(nau8824); + + nau8824_reset_chip(nau8824->regmap); + ret = regmap_read(nau8824->regmap, NAU8824_REG_I2C_DEVICE_ID, &value); + if (ret < 0) { + dev_err(dev, "Failed to read device id from the NAU8824: %d\n", + ret); + return ret; + } + nau8824_init_regs(nau8824); + + if (i2c->irq) + nau8824_setup_irq(nau8824); + + return snd_soc_register_codec(dev, + &nau8824_codec_driver, &nau8824_dai, 1); +} + + +static int nau8824_i2c_remove(struct i2c_client *client) +{ + snd_soc_unregister_codec(&client->dev); + return 0; +} + +static const struct i2c_device_id nau8824_i2c_ids[] = { + { "nau8824", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, nau8824_i2c_ids); + +#ifdef CONFIG_OF +static const struct of_device_id nau8824_of_ids[] = { + { .compatible = "nuvoton,nau8824", }, + {} +}; +MODULE_DEVICE_TABLE(of, nau8824_of_ids); +#endif + +#ifdef CONFIG_ACPI +static const struct acpi_device_id nau8824_acpi_match[] = { + { "10508824", 0 }, + {}, +}; +MODULE_DEVICE_TABLE(acpi, nau8824_acpi_match); +#endif + +static struct i2c_driver nau8824_i2c_driver = { + .driver = { + .name = "nau8824", + .of_match_table = of_match_ptr(nau8824_of_ids), + .acpi_match_table = ACPI_PTR(nau8824_acpi_match), + }, + .probe = nau8824_i2c_probe, + .remove = nau8824_i2c_remove, + .id_table = nau8824_i2c_ids, +}; +module_i2c_driver(nau8824_i2c_driver); + + +MODULE_DESCRIPTION("ASoC NAU88L24 driver"); +MODULE_AUTHOR("John Hsu <KCHSU0(a)nuvoton.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/codecs/nau8824.h b/sound/soc/codecs/nau8824.h new file mode 100644 index 0000000..5cb65a4 --- /dev/null +++ b/sound/soc/codecs/nau8824.h @@ -0,0 +1,462 @@ +/* + * NAU88L24 ALSA SoC audio driver + * + * Copyright 2016 Nuvoton Technology Corp. + * Author: John Hsu <KCHSU0(a)nuvoton.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __NAU8824_H__ +#define __NAU8824_H__ + +#define NAU8824_REG_RESET 0x00 +#define NAU8824_REG_ENA_CTRL 0x01 +#define NAU8824_REG_CLK_GATING_ENA 0x02 +#define NAU8824_REG_CLK_DIVIDER 0x03 +#define NAU8824_REG_FLL1 0x04 +#define NAU8824_REG_FLL2 0x05 +#define NAU8824_REG_FLL3 0x06 +#define NAU8824_REG_FLL4 0x07 +#define NAU8824_REG_FLL5 0x08 +#define NAU8824_REG_FLL6 0x09 +#define NAU8824_REG_FLL_VCO_RSV 0x0A +#define NAU8824_REG_JACK_DET_CTRL 0x0D +#define NAU8824_REG_INTERRUPT_SETTING_1 0x0F +#define NAU8824_REG_IRQ 0x10 +#define NAU8824_REG_CLEAR_INT_REG 0x11 +#define NAU8824_REG_INTERRUPT_SETTING 0x12 +#define NAU8824_REG_SAR_ADC 0x13 +#define NAU8824_REG_VDET_COEFFICIENT 0x14 +#define NAU8824_REG_VDET_THRESHOLD_1 0x15 +#define NAU8824_REG_VDET_THRESHOLD_2 0x16 +#define NAU8824_REG_VDET_THRESHOLD_3 0x17 +#define NAU8824_REG_VDET_THRESHOLD_4 0x18 +#define NAU8824_REG_GPIO_SEL 0x1A +#define NAU8824_REG_PORT0_I2S_PCM_CTRL_1 0x1C +#define NAU8824_REG_PORT0_I2S_PCM_CTRL_2 0x1D +#define NAU8824_REG_PORT0_LEFT_TIME_SLOT 0x1E +#define NAU8824_REG_PORT0_RIGHT_TIME_SLOT 0x1F +#define NAU8824_REG_TDM_CTRL 0x20 +#define NAU8824_REG_ADC_HPF_FILTER 0x23 +#define NAU8824_REG_ADC_FILTER_CTRL 0x24 +#define NAU8824_REG_DAC_FILTER_CTRL_1 0x25 +#define NAU8824_REG_DAC_FILTER_CTRL_2 0x26 +#define NAU8824_REG_NOTCH_FILTER_1 0x27 +#define NAU8824_REG_NOTCH_FILTER_2 0x28 +#define NAU8824_REG_EQ1_LOW 0x29 +#define NAU8824_REG_EQ2_EQ3 0x2A +#define NAU8824_REG_EQ4_EQ5 0x2B +#define NAU8824_REG_ADC_CH0_DGAIN_CTRL 0x2D +#define NAU8824_REG_ADC_CH1_DGAIN_CTRL 0x2E +#define NAU8824_REG_ADC_CH2_DGAIN_CTRL 0x2F +#define NAU8824_REG_ADC_CH3_DGAIN_CTRL 0x30 +#define NAU8824_REG_DAC_MUTE_CTRL 0x31 +#define NAU8824_REG_DAC_CH0_DGAIN_CTRL 0x32 +#define NAU8824_REG_DAC_CH1_DGAIN_CTRL 0x33 +#define NAU8824_REG_ADC_TO_DAC_ST 0x34 +#define NAU8824_REG_DRC_KNEE_IP12_ADC_CH01 0x38 +#define NAU8824_REG_DRC_KNEE_IP34_ADC_CH01 0x39 +#define NAU8824_REG_DRC_SLOPE_ADC_CH01 0x3A +#define NAU8824_REG_DRC_ATKDCY_ADC_CH01 0x3B +#define NAU8824_REG_DRC_KNEE_IP12_ADC_CH23 0x3C +#define NAU8824_REG_DRC_KNEE_IP34_ADC_CH23 0x3D +#define NAU8824_REG_DRC_SLOPE_ADC_CH23 0x3E +#define NAU8824_REG_DRC_ATKDCY_ADC_CH23 0x3F +#define NAU8824_REG_DRC_GAINL_ADC0 0x40 +#define NAU8824_REG_DRC_GAINL_ADC1 0x41 +#define NAU8824_REG_DRC_GAINL_ADC2 0x42 +#define NAU8824_REG_DRC_GAINL_ADC3 0x43 +#define NAU8824_REG_DRC_KNEE_IP12_DAC 0x45 +#define NAU8824_REG_DRC_KNEE_IP34_DAC 0x46 +#define NAU8824_REG_DRC_SLOPE_DAC 0x47 +#define NAU8824_REG_DRC_ATKDCY_DAC 0x48 +#define NAU8824_REG_DRC_GAIN_DAC_CH0 0x49 +#define NAU8824_REG_DRC_GAIN_DAC_CH1 0x4A +#define NAU8824_REG_MODE 0x4C +#define NAU8824_REG_MODE1 0x4D +#define NAU8824_REG_MODE2 0x4E +#define NAU8824_REG_CLASSG 0x50 +#define NAU8824_REG_OTP_EFUSE 0x51 +#define NAU8824_REG_OTPDOUT_1 0x53 +#define NAU8824_REG_OTPDOUT_2 0x54 +#define NAU8824_REG_MISC_CTRL 0x55 +#define NAU8824_REG_I2C_TIMEOUT 0x56 +#define NAU8824_REG_TEST_MODE 0x57 +#define NAU8824_REG_I2C_DEVICE_ID 0x58 +#define NAU8824_REG_SAR_ADC_DATA_OUT 0x59 +#define NAU8824_REG_BIAS_ADJ 0x66 +#define NAU8824_REG_PGA_GAIN 0x67 +#define NAU8824_REG_TRIM_SETTINGS 0x68 +#define NAU8824_REG_ANALOG_CONTROL_1 0x69 +#define NAU8824_REG_ANALOG_CONTROL_2 0x6A +#define NAU8824_REG_ENABLE_LO 0x6B +#define NAU8824_REG_GAIN_LO 0x6C +#define NAU8824_REG_CLASSD_GAIN_1 0x6D +#define NAU8824_REG_CLASSD_GAIN_2 0x6E +#define NAU8824_REG_ANALOG_ADC_1 0x71 +#define NAU8824_REG_ANALOG_ADC_2 0x72 +#define NAU8824_REG_RDAC 0x73 +#define NAU8824_REG_MIC_BIAS 0x74 +#define NAU8824_REG_HS_VOLUME_CONTROL 0x75 +#define NAU8824_REG_BOOST 0x76 +#define NAU8824_REG_FEPGA 0x77 +#define NAU8824_REG_FEPGA_II 0x78 +#define NAU8824_REG_FEPGA_SE 0x79 +#define NAU8824_REG_FEPGA_ATTENUATION 0x7A +#define NAU8824_REG_ATT_PORT0 0x7B +#define NAU8824_REG_ATT_PORT1 0x7C +#define NAU8824_REG_POWER_UP_CONTROL 0x7F +#define NAU8824_REG_CHARGE_PUMP_CONTROL 0x80 +#define NAU8824_REG_CHARGE_PUMP_INPUT 0x81 +#define NAU8824_REG_MAX NAU8824_REG_CHARGE_PUMP_INPUT +/* 16-bit control register address, and 16-bits control register data */ +#define NAU8824_REG_ADDR_LEN 16 +#define NAU8824_REG_DATA_LEN 16 + + +/* ENA_CTRL (0x1) */ +#define NAU8824_DMIC_LCH_EDGE_CH23 (0x1 << 12) +#define NAU8824_DMIC_LCH_EDGE_CH01 (0x1 << 11) +#define NAU8824_JD_SLEEP_MODE (0x1 << 10) +#define NAU8824_ADC_CH3_DMIC_SFT 9 +#define NAU8824_ADC_CH3_DMIC_EN (0x1 << NAU8824_ADC_CH3_DMIC_SFT) +#define NAU8824_ADC_CH2_DMIC_SFT 8 +#define NAU8824_ADC_CH2_DMIC_EN (0x1 << NAU8824_ADC_CH2_DMIC_SFT) +#define NAU8824_ADC_CH1_DMIC_SFT 7 +#define NAU8824_ADC_CH1_DMIC_EN (0x1 << NAU8824_ADC_CH1_DMIC_SFT) +#define NAU8824_ADC_CH0_DMIC_SFT 6 +#define NAU8824_ADC_CH0_DMIC_EN (0x1 << NAU8824_ADC_CH0_DMIC_SFT) +#define NAU8824_DAC_CH1_EN (0x1 << 5) +#define NAU8824_DAC_CH0_EN (0x1 << 4) +#define NAU8824_ADC_CH3_EN (0x1 << 3) +#define NAU8824_ADC_CH2_EN (0x1 << 2) +#define NAU8824_ADC_CH1_EN (0x1 << 1) +#define NAU8824_ADC_CH0_EN 0x1 + +/* CLK_GATING_ENA (0x02) */ +#define NAU8824_CLK_ADC_CH23_EN (0x1 << 15) +#define NAU8824_CLK_ADC_CH01_EN (0x1 << 14) +#define NAU8824_CLK_DAC_CH1_EN (0x1 << 13) +#define NAU8824_CLK_DAC_CH0_EN (0x1 << 12) +#define NAU8824_CLK_I2S_EN (0x1 << 7) +#define NAU8824_CLK_GAIN_EN (0x1 << 5) +#define NAU8824_CLK_SAR_EN (0x1 << 3) +#define NAU8824_CLK_DMIC_CH23_EN (0x1 << 1) + +/* CLK_DIVIDER (0x3) */ +#define NAU8824_CLK_SRC_SFT 15 +#define NAU8824_CLK_SRC_MASK (1 << NAU8824_CLK_SRC_SFT) +#define NAU8824_CLK_SRC_VCO (1 << NAU8824_CLK_SRC_SFT) +#define NAU8824_CLK_SRC_MCLK (0 << NAU8824_CLK_SRC_SFT) +#define NAU8824_CLK_MCLK_SRC_MASK (0xf << 0) +#define NAU8824_CLK_DMIC_SRC_SFT 10 +#define NAU8824_CLK_DMIC_SRC_MASK (0x7 << NAU8824_CLK_DMIC_SRC_SFT) +#define NAU8824_CLK_ADC_SRC_SFT 6 +#define NAU8824_CLK_ADC_SRC_MASK (0x3 << NAU8824_CLK_ADC_SRC_SFT) +#define NAU8824_CLK_DAC_SRC_SFT 4 +#define NAU8824_CLK_DAC_SRC_MASK (0x3 << NAU8824_CLK_DAC_SRC_SFT) + +/* FLL1 (0x04) */ +#define NAU8824_FLL_RATIO_MASK (0x7f << 0) + +/* FLL3 (0x06) */ +#define NAU8824_FLL_INTEGER_MASK (0x3ff << 0) +#define NAU8824_FLL_CLK_SRC_SFT 10 +#define NAU8824_FLL_CLK_SRC_MASK (0x3 << NAU8824_FLL_CLK_SRC_SFT) +#define NAU8824_FLL_CLK_SRC_MCLK (0 << NAU8824_FLL_CLK_SRC_SFT) +#define NAU8824_FLL_CLK_SRC_BLK (0x2 << NAU8824_FLL_CLK_SRC_SFT) +#define NAU8824_FLL_CLK_SRC_FS (0x3 << NAU8824_FLL_CLK_SRC_SFT) + +/* FLL4 (0x07) */ +#define NAU8824_FLL_REF_DIV_SFT 10 +#define NAU8824_FLL_REF_DIV_MASK (0x3 << NAU8824_FLL_REF_DIV_SFT) + +/* FLL5 (0x08) */ +#define NAU8824_FLL_PDB_DAC_EN (0x1 << 15) +#define NAU8824_FLL_LOOP_FTR_EN (0x1 << 14) +#define NAU8824_FLL_CLK_SW_MASK (0x1 << 13) +#define NAU8824_FLL_CLK_SW_N2 (0x1 << 13) +#define NAU8824_FLL_CLK_SW_REF (0x0 << 13) +#define NAU8824_FLL_FTR_SW_MASK (0x1 << 12) +#define NAU8824_FLL_FTR_SW_ACCU (0x1 << 12) +#define NAU8824_FLL_FTR_SW_FILTER (0x0 << 12) + +/* FLL6 (0x9) */ +#define NAU8824_DCO_EN (0x1 << 15) +#define NAU8824_SDM_EN (0x1 << 14) + +/* IRQ (0x10) */ +#define NAU8824_SHORT_CIRCUIT_IRQ (0x1 << 7) +#define NAU8824_IMPEDANCE_MEAS_IRQ (0x1 << 6) +#define NAU8824_KEY_RELEASE_IRQ (0x1 << 5) +#define NAU8824_KEY_LONG_PRESS_IRQ (0x1 << 4) +#define NAU8824_KEY_SHORT_PRESS_IRQ (0x1 << 3) +#define NAU8824_JACK_EJECTION_DETECTED (0x1 << 1) +#define NAU8824_JACK_INSERTION_DETECTED 0x1 + +/* JACK_DET_CTRL (0x0D) */ +#define NAU8824_JACK_EJECT_DT_SFT 2 +#define NAU8824_JACK_EJECT_DT_MASK (0x3 << NAU8824_JACK_EJECT_DT_SFT) + +/* INTERRUPT_SETTING_1 (0x0F) */ +#define NAU8824_IRQ_EJECT_EN (0x1 << 9) +#define NAU8824_IRQ_INSERT_EN (0x1 << 8) + +/* INTERRUPT_SETTING (0x12) */ +#define NAU8824_IRQ_KEY_RELEASE_DIS (0x1 << 5) +#define NAU8824_IRQ_KEY_SHORT_PRESS_DIS (0x1 << 3) +#define NAU8824_IRQ_EJECT_DIS (0x1 << 1) +#define NAU8824_IRQ_INSERT_DIS 0x1 + +/* SAR_ADC (0x13) */ +#define NAU8824_SAR_ADC_EN_SFT 12 +#define NAU8824_SAR_TRACKING_GAIN_SFT 8 +#define NAU8824_SAR_TRACKING_GAIN_MASK (0x7 << NAU8824_SAR_TRACKING_GAIN_SFT) +#define NAU8824_SAR_COMPARE_TIME_SFT 2 +#define NAU8824_SAR_COMPARE_TIME_MASK (3 << 2) +#define NAU8824_SAR_SAMPLING_TIME_SFT 0 +#define NAU8824_SAR_SAMPLING_TIME_MASK (3 << 0) + +/* VDET_COEFFICIENT (0x14) */ +#define NAU8824_SHORTKEY_DEBOUNCE_SFT 12 +#define NAU8824_SHORTKEY_DEBOUNCE_MASK (0x3 << NAU8824_SHORTKEY_DEBOUNCE_SFT) +#define NAU8824_LEVELS_NR_SFT 8 +#define NAU8824_LEVELS_NR_MASK (0x7 << 8) +#define NAU8824_HYSTERESIS_SFT 0 +#define NAU8824_HYSTERESIS_MASK 0xf + +/* PORT0_I2S_PCM_CTRL_1 (0x1C) */ +#define NAU8824_I2S_BP_SFT 7 +#define NAU8824_I2S_BP_MASK (1 << NAU8824_I2S_BP_SFT) +#define NAU8824_I2S_BP_INV (1 << NAU8824_I2S_BP_SFT) +#define NAU8824_I2S_PCMB_SFT 6 +#define NAU8824_I2S_PCMB_EN (1 << NAU8824_I2S_PCMB_SFT) +#define NAU8824_I2S_DL_SFT 2 +#define NAU8824_I2S_DL_MASK (0x3 << NAU8824_I2S_DL_SFT) +#define NAU8824_I2S_DL_16 (0 << NAU8824_I2S_DL_SFT) +#define NAU8824_I2S_DL_20 (1 << NAU8824_I2S_DL_SFT) +#define NAU8824_I2S_DL_24 (2 << NAU8824_I2S_DL_SFT) +#define NAU8824_I2S_DL_32 (3 << NAU8824_I2S_DL_SFT) +#define NAU8824_I2S_DF_MASK 0x3 +#define NAU8824_I2S_DF_RIGTH 0 +#define NAU8824_I2S_DF_LEFT 1 +#define NAU8824_I2S_DF_I2S 2 +#define NAU8824_I2S_DF_PCM_AB 3 + + +/* PORT0_I2S_PCM_CTRL_2 (0x1D) */ +#define NAU8824_I2S_LRC_DIV_SFT 12 +#define NAU8824_I2S_LRC_DIV_MASK (0x3 << NAU8824_I2S_LRC_DIV_SFT) +#define NAU8824_I2S_MS_SFT 3 +#define NAU8824_I2S_MS_MASK (1 << NAU8824_I2S_MS_SFT) +#define NAU8824_I2S_MS_MASTER (1 << NAU8824_I2S_MS_SFT) +#define NAU8824_I2S_MS_SLAVE (0 << NAU8824_I2S_MS_SFT) +#define NAU8824_I2S_BLK_DIV_MASK 0x7 + +/* ADC_FILTER_CTRL (0x24) */ +#define NAU8824_ADC_SYNC_DOWN_MASK 0x3 +#define NAU8824_ADC_SYNC_DOWN_32 0 +#define NAU8824_ADC_SYNC_DOWN_64 1 +#define NAU8824_ADC_SYNC_DOWN_128 2 +#define NAU8824_ADC_SYNC_DOWN_256 3 + +/* DAC_FILTER_CTRL_1 (0x25) */ +#define NAU8824_DAC_CICCLP_OFF (0x1 << 7) +#define NAU8824_DAC_OVERSAMPLE_MASK 0x7 +#define NAU8824_DAC_OVERSAMPLE_64 0 +#define NAU8824_DAC_OVERSAMPLE_256 1 +#define NAU8824_DAC_OVERSAMPLE_128 2 +#define NAU8824_DAC_OVERSAMPLE_32 4 + +/* DAC_MUTE_CTRL (0x31) */ +#define NAU8824_DAC_CH01_MIX 0x3 +#define NAU8824_DAC_ZC_EN (0x1 << 11) + +/* DAC_CH0_DGAIN_CTRL (0x32) */ +#define NAU8824_DAC_CH0_SEL_SFT 9 +#define NAU8824_DAC_CH0_SEL_MASK (0x1 << NAU8824_DAC_CH0_SEL_SFT) +#define NAU8824_DAC_CH0_SEL_I2S0 (0x0 << NAU8824_DAC_CH0_SEL_SFT) +#define NAU8824_DAC_CH0_SEL_I2S1 (0x1 << NAU8824_DAC_CH0_SEL_SFT) +#define NAU8824_DAC_CH0_VOL_MASK 0x1ff + +/* DAC_CH1_DGAIN_CTRL (0x33) */ +#define NAU8824_DAC_CH1_SEL_SFT 9 +#define NAU8824_DAC_CH1_SEL_MASK (0x1 << NAU8824_DAC_CH1_SEL_SFT) +#define NAU8824_DAC_CH1_SEL_I2S0 (0x0 << NAU8824_DAC_CH1_SEL_SFT) +#define NAU8824_DAC_CH1_SEL_I2S1 (0x1 << NAU8824_DAC_CH1_SEL_SFT) +#define NAU8824_DAC_CH1_VOL_MASK 0x1ff + +/* CLASSG (0x50) */ +#define NAU8824_CLASSG_TIMER_SFT 8 +#define NAU8824_CLASSG_TIMER_MASK (0x3f << NAU8824_CLASSG_TIMER_SFT) +#define NAU8824_CLASSG_LDAC_EN_SFT 2 +#define NAU8824_CLASSG_RDAC_EN_SFT 1 +#define NAU8824_CLASSG_EN_SFT 0 + +/* SAR_ADC_DATA_OUT (0x59) */ +#define NAU8824_SAR_ADC_DATA_MASK 0xff + +/* BIAS_ADJ (0x66) */ +#define NAU8824_VMID (1 << 6) +#define NAU8824_VMID_SEL_SFT 4 +#define NAU8824_VMID_SEL_MASK (3 << NAU8824_VMID_SEL_SFT) +#define NAU8824_DMIC2_EN_SFT 3 +#define NAU8824_DMIC1_EN_SFT 2 + +/* TRIM_SETTINGS (0x68) */ +#define NAU8824_DRV_CURR_INC (1 << 15) + +/* ANALOG_CONTROL_1 (0x69) */ +#define NAU8824_DMIC_CLK_DRV_STRG (1 << 3) +#define NAU8824_DMIC_CLK_SLEW_FAST (0x7) + +/* ANALOG_CONTROL_2 (0x6A) */ +#define NAU8824_CLASSD_CLAMP_DIS_SFT 3 +#define NAU8824_CLASSD_CLAMP_DIS (0x1 << NAU8824_CLASSD_CLAMP_DIS_SFT) + +/* ENABLE_LO (0x6B) */ +#define NAU8824_TEST_DAC_SFT 14 +#define NAU8824_TEST_DAC_EN (0x3 << NAU8824_TEST_DAC_SFT) +#define NAU8824_DACL_HPR_EN_SFT 3 +#define NAU8824_DACL_HPR_EN (0x1 << NAU8824_DACL_HPR_EN_SFT) +#define NAU8824_DACR_HPR_EN_SFT 2 +#define NAU8824_DACR_HPR_EN (0x1 << NAU8824_DACR_HPR_EN_SFT) +#define NAU8824_DACR_HPL_EN_SFT 1 +#define NAU8824_DACR_HPL_EN (0x1 << NAU8824_DACR_HPL_EN_SFT) +#define NAU8824_DACL_HPL_EN_SFT 0 +#define NAU8824_DACL_HPL_EN 0x1 + +/* CLASSD_GAIN_1 (0x6D) */ +#define NAU8824_CLASSD_GAIN_1R_SFT 8 +#define NAU8824_CLASSD_GAIN_1R_MASK (0x1f << NAU8824_CLASSD_GAIN_1R_SFT) +#define NAU8824_CLASSD_EN_SFT 7 +#define NAU8824_CLASSD_EN (0x1 << NAU8824_CLASSD_EN_SFT) +#define NAU8824_CLASSD_GAIN_1L_MASK 0x1f + +/* CLASSD_GAIN_2 (0x6E) */ +#define NAU8824_CLASSD_GAIN_2R_SFT 8 +#define NAU8824_CLASSD_GAIN_2R_MASK (0x1f << NAU8824_CLASSD_GAIN_1R_SFT) +#define NAU8824_CLASSD_EN_SFT 7 +#define NAU8824_CLASSD_EN (0x1 << NAU8824_CLASSD_EN_SFT) +#define NAU8824_CLASSD_GAIN_2L_MASK 0x1f + +/* ANALOG_ADC_2 (0x72) */ +#define NAU8824_ADCR_EN_SFT 7 +#define NAU8824_ADCL_EN_SFT 6 + +/* RDAC (0x73) */ +#define NAU8824_DACR_EN_SFT 13 +#define NAU8824_DACL_EN_SFT 12 +#define NAU8824_DACR_CLK_SFT 9 +#define NAU8824_DACL_CLK_SFT 8 +#define NAU8824_RDAC_CLK_DELAY_SFT 4 +#define NAU8824_RDAC_CLK_DELAY_MASK (0x7 << NAU8824_RDAC_CLK_DELAY_SFT) +#define NAU8824_RDAC_VREF_SFT 2 +#define NAU8824_RDAC_VREF_MASK (0x3 << NAU8824_RDAC_VREF_SFT) + +/* MIC_BIAS (0x74) */ +#define NAU8824_MICBIAS_JKSLV (1 << 14) +#define NAU8824_MICBIAS_JKR2 (1 << 12) +#define NAU8824_MICBIAS_POWERUP_SFT 8 +#define NAU8824_MICBIAS_VOLTAGE_SFT 0 +#define NAU8824_MICBIAS_VOLTAGE_MASK 0x7 + +/* BOOST (0x76) */ +#define NAU8824_PRECHARGE_DIS (0x1 << 13) +#define NAU8824_GLOBAL_BIAS_EN (0x1 << 12) +#define NAU8824_HP_BOOST_DIS_SFT 9 +#define NAU8824_HP_BOOST_DIS (0x1 << NAU8824_HP_BOOST_DIS_SFT) +#define NAU8824_HP_BOOST_G_DIS_SFT 8 +#define NAU8824_HP_BOOST_G_DIS (0x1 << NAU8824_HP_BOOST_G_DIS_SFT) +#define NAU8824_SHORT_SHUTDOWN_DIG_EN (1 << 7) +#define NAU8824_SHORT_SHUTDOWN_EN (1 << 6) + +/* FEPGA (0x77) */ +#define NAU8824_FEPGA_MODER_SHORT_SFT 7 +#define NAU8824_FEPGA_MODER_SHORT_EN (0x1 << NAU8824_FEPGA_MODER_SHORT_SFT) +#define NAU8824_FEPGA_MODER_MIC2_SFT 5 +#define NAU8824_FEPGA_MODER_MIC2_EN (0x1 << NAU8824_FEPGA_MODER_MIC2_SFT) +#define NAU8824_FEPGA_MODER_HSMIC_SFT 4 +#define NAU8824_FEPGA_MODER_HSMIC_EN (0x1 << NAU8824_FEPGA_MODER_HSMIC_SFT) +#define NAU8824_FEPGA_MODEL_SHORT_SFT 3 +#define NAU8824_FEPGA_MODEL_SHORT_EN (0x1 << NAU8824_FEPGA_MODEL_SHORT_SFT) +#define NAU8824_FEPGA_MODEL_MIC1_SFT 1 +#define NAU8824_FEPGA_MODEL_MIC1_EN (0x1 << NAU8824_FEPGA_MODEL_MIC1_SFT) +#define NAU8824_FEPGA_MODEL_HSMIC_SFT 0 +#define NAU8824_FEPGA_MODEL_HSMIC_EN (0x1 << NAU8824_FEPGA_MODEL_HSMIC_SFT) + +/* FEPGA_II (0x78) */ +#define NAU8824_FEPGA_GAINR_SFT 5 +#define NAU8824_FEPGA_GAINR_MASK (0x1f << NAU8824_FEPGA_GAINR_SFT) +#define NAU8824_FEPGA_GAINL_SFT 0 +#define NAU8824_FEPGA_GAINL_MASK 0x1f + +/* CHARGE_PUMP_CONTROL (0x80) */ +#define NAU8824_JAMNODCLOW (0x1 << 15) +#define NAU8824_SPKR_PULL_DOWN (0x1 << 13) +#define NAU8824_SPKL_PULL_DOWN (0x1 << 12) +#define NAU8824_POWER_DOWN_DACR (0x1 << 9) +#define NAU8824_POWER_DOWN_DACL (0x1 << 8) +#define NAU8824_CHARGE_PUMP_EN_SFT 5 +#define NAU8824_CHARGE_PUMP_EN (0x1 << NAU8824_CHARGE_PUMP_EN_SFT) + + +#define NAU8824_CODEC_DAI "nau8824-hifi" + +/* System Clock Source */ +enum { + NAU8824_CLK_DIS, + NAU8824_CLK_MCLK, + NAU8824_CLK_INTERNAL, + NAU8824_CLK_FLL_MCLK, + NAU8824_CLK_FLL_BLK, + NAU8824_CLK_FLL_FS, +}; + +struct nau8824 { + struct device *dev; + struct regmap *regmap; + struct snd_soc_dapm_context *dapm; + struct snd_soc_jack *jack; + struct work_struct jdet_work; + struct semaphore jd_sem; + int irq; + int micbias_voltage; + int vref_impedance; + int sar_threshold_num; + int sar_threshold[8]; + int sar_hysteresis; + int sar_voltage; + int sar_compare_time; + int sar_sampling_time; + int key_debounce; + int jack_eject_debounce; +}; + +struct nau8824_fll { + int mclk_src; + int ratio; + int fll_frac; + int fll_int; + int clk_ref_div; +}; + +struct nau8824_fll_attr { + unsigned int param; + unsigned int val; +}; + +struct nau8824_osr_attr { + unsigned int osr; + unsigned int clk_src; +}; + + +int nau8824_enable_jack_detect(struct snd_soc_codec *codec, + struct snd_soc_jack *jack); + +#endif /* _NAU8824_H */ + -- 2.6.4 =========================================================================================== The privileged confidential information contained in this email is intended for use only by the addressees as indicated by the original sender of this email. If you are not the addressee indicated in this email or are not responsible for delivery of the email to such a person, please kindly reply to the sender indicating this fact and delete all copies of it from your computer and network server immediately. Your cooperation is highly appreciated. It is advised that any unauthorized use of confidential information of Nuvoton is strictly prohibited; and any information in this email irrelevant to the official business of Nuvoton shall be deemed as neither given nor endorsed by Nuvoton.

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[alsa-devel] [RFC] [ALSA][CONTROL] Restructured the code for read/write of a single control
by Satendra Singh Thakur 02 Feb '17

02 Feb '17

From: satendra singh thakur <satendra.t(a)samsung.com> -Restructured/Combined two functions snd_ctl_elem_read_user and snd_ctl_elem_write_user into a single function snd_ctl_elem_rw_user -These functions were having most of the code which was similar to each other -Thus, there was redundant/duplicate code which was removed and a single function was formed/defined.- -Removed functions snd_ctl_elem_read_user and snd_ctl_elem_write_user having redundant/duplicate code Signed-off-by: Satendra Singh Thakur <satendra.t(a)samsung.com> --- sound/core/control.c | 55 ++++++++++++++++++++++---------------------------- 1 file changed, 24 insertions(+), 31 deletions(-) diff --git a/sound/core/control.c b/sound/core/control.c index fb096cb..6a8bc19 100644 --- a/sound/core/control.c +++ b/sound/core/control.c @@ -920,28 +920,6 @@ static int snd_ctl_elem_read(struct snd_card *card, return result; } -static int snd_ctl_elem_read_user(struct snd_card *card, - struct snd_ctl_elem_value __user *_control) -{ - struct snd_ctl_elem_value *control; - int result; - - control = memdup_user(_control, sizeof(*control)); - if (IS_ERR(control)) - return PTR_ERR(control); - - snd_power_lock(card); - result = snd_power_wait(card, SNDRV_CTL_POWER_D0); - if (result >= 0) - result = snd_ctl_elem_read(card, control); - snd_power_unlock(card); - if (result >= 0) - if (copy_to_user(_control, control, sizeof(*control))) - result = -EFAULT; - kfree(control); - return result; -} - static int snd_ctl_elem_write(struct snd_card *card, struct snd_ctl_file *file, struct snd_ctl_elem_value *control) { @@ -976,22 +954,37 @@ static int snd_ctl_elem_write(struct snd_card *card, struct snd_ctl_file *file, return result; } -static int snd_ctl_elem_write_user(struct snd_ctl_file *file, - struct snd_ctl_elem_value __user *_control) + +/** + * snd_ctl_elem_rw_user - Read/write value of an element + * @file: the card to which element belongs to + * @_control,: the card to which element belongs to + * @card: the card to which element belongs to + * @pucontrols: user-space pointer to struct snd_ctl_elem_values + * + * This function reads the value of controls with the given IDs + * of the same card + */ + +static int snd_ctl_elem_rw_user(struct snd_ctl_file *file, + struct snd_ctl_elem_value __user *_control, + bool write_flag) { struct snd_ctl_elem_value *control; - struct snd_card *card; int result; - + struct snd_card *card; control = memdup_user(_control, sizeof(*control)); if (IS_ERR(control)) return PTR_ERR(control); - card = file->card; snd_power_lock(card); result = snd_power_wait(card, SNDRV_CTL_POWER_D0); - if (result >= 0) - result = snd_ctl_elem_write(card, file, control); + if (result >= 0) { + if (write_flag == true) + result = snd_ctl_elem_write(card, file, control); + else + result = snd_ctl_elem_read(card, control); + } snd_power_unlock(card); if (result >= 0) if (copy_to_user(_control, control, sizeof(*control))) @@ -1514,9 +1507,9 @@ static long snd_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg case SNDRV_CTL_IOCTL_ELEM_INFO: return snd_ctl_elem_info_user(ctl, argp); case SNDRV_CTL_IOCTL_ELEM_READ: - return snd_ctl_elem_read_user(card, argp); + return snd_ctl_elem_rw_user(ctl, argp, false); case SNDRV_CTL_IOCTL_ELEM_WRITE: - return snd_ctl_elem_write_user(ctl, argp); + return snd_ctl_elem_rw_user(ctl, argp, true); case SNDRV_CTL_IOCTL_ELEM_LOCK: return snd_ctl_elem_lock(ctl, argp); case SNDRV_CTL_IOCTL_ELEM_UNLOCK: -- 1.7.9.5

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[alsa-devel] [PATCH 0/2] Add STM32 SAI support
by olivier moysan 01 Feb '17

01 Feb '17

This patch-set handles the Serial Audio Interface (SAI) IP on STM32 platforms. The SAI IP is composed of two Sub-block A and B. (see the figure below) Each sub-block makes use of individual and shared resources. Shared resources: - Reset line. Reset common and sub-block registers. - Bus interface clocks. This clock is not exposed in device as it it managed by clock driver, according to kernel clocks gating. - Common register. SAI IP exhibits a common configuration register to manage synchronization modes. NB: These modes are not yet implemented in this version of the SAI driver. - Interrupt. Sub-blocks have their own interrupt status registers but they share the same interrupt line. Individual resources: - Register set - DMA request line. - Communication interface. Each sub-block has its own GPIOs and associated bus lines. - Kernel clock. Each sub-block has its own dedicated clock for its communication interface. To reflect this architecture Sub-block A and B are handled by 2 child devices. Sub-block A and B devices can be configured independently either as transmitter or receiver. A PCM device is associated to each sub-block. A sub-block has to select the appropriated parent clock at runtime, depending on the audio stream sampling rate. Interface clock +--------------------------------+ +---------------> | SAI IP | Reset | +-----------------+ | +---------------> | |common registers | | | +-----------------+ | | | | +----------------------+ | | | Sub-block A | | Kernel clock A | | | | Bus A +--------------------> | +----------------+ +----------------> | | |A registers | | | | | +----------------+ | | | +----------------------+ | | | | +----------------------+ | | | Sub-block B | | Kernel clock B | | | | Bus B +--------------------> | +----------------+ +-----------------> | | |B registers | | | | | +----------------+ | | | +----------------------+ | | | +--------------------------------+ olivier moysan (2): ASoC: stm32: add bindings for SAI ASoC: stm32: add SAI driver .../devicetree/bindings/sound/st,stm32-sai.txt | 79 ++ sound/soc/Kconfig | 1 + sound/soc/Makefile | 1 + sound/soc/stm/Kconfig | 8 + sound/soc/stm/Makefile | 6 + sound/soc/stm/stm32_sai.c | 123 +++ sound/soc/stm/stm32_sai.h | 202 +++++ sound/soc/stm/stm32_sai_sub.c | 898 +++++++++++++++++++++ 8 files changed, 1318 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/st,stm32-sai.txt create mode 100644 sound/soc/stm/Kconfig create mode 100644 sound/soc/stm/Makefile create mode 100644 sound/soc/stm/stm32_sai.c create mode 100644 sound/soc/stm/stm32_sai.h create mode 100644 sound/soc/stm/stm32_sai_sub.c -- 1.9.1

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[alsa-devel] [PATCH] ASoC: rt5670: add HS ground control
by Bard Liao 01 Feb '17

01 Feb '17

Some project use external circuit to prevent the headset ground noise. It will need to use GPIO to control it. Dell Wyse 3040 is the only project that has the external circuit so far and it uses GPIO2 for that. This patch provide the support fot it. Signed-off-by: Bard Liao <bardliao(a)realtek.com> --- include/sound/rt5670.h | 7 +++++ sound/soc/codecs/rt5670.c | 74 ++++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 80 insertions(+), 1 deletion(-) diff --git a/include/sound/rt5670.h b/include/sound/rt5670.h index b7d6051..0b445b0 100644 --- a/include/sound/rt5670.h +++ b/include/sound/rt5670.h @@ -11,12 +11,19 @@ #ifndef __LINUX_SND_RT5670_H #define __LINUX_SND_RT5670_H +enum rt5670_gpios { + RT5670_GPIO_NONE = 0, + RT5670_GPIO2, +}; + + struct rt5670_platform_data { int jd_mode; bool in2_diff; bool dev_gpio; bool dmic_en; + enum rt5670_gpios hs_ground_control_gpio; unsigned int dmic1_data_pin; /* 0 = GPIO6; 1 = IN2P; 3 = GPIO7*/ unsigned int dmic2_data_pin; diff --git a/sound/soc/codecs/rt5670.c b/sound/soc/codecs/rt5670.c index 97bafac..1d94cec 100644 --- a/sound/soc/codecs/rt5670.c +++ b/sound/soc/codecs/rt5670.c @@ -420,13 +420,15 @@ static int rt5670_headset_detect(struct snd_soc_codec *codec, int jack_insert) struct rt5670_priv *rt5670 = snd_soc_codec_get_drvdata(codec); if (jack_insert) { + if (rt5670->pdata.hs_ground_control_gpio) + snd_soc_dapm_force_enable_pin(dapm, "HS GND Control"); + snd_soc_dapm_force_enable_pin(dapm, "Mic Det Power"); snd_soc_dapm_sync(dapm); snd_soc_update_bits(codec, RT5670_GEN_CTRL3, 0x4, 0x0); snd_soc_update_bits(codec, RT5670_CJ_CTRL2, RT5670_CBJ_DET_MODE | RT5670_CBJ_MN_JD, RT5670_CBJ_MN_JD); - snd_soc_write(codec, RT5670_GPIO_CTRL2, 0x0004); snd_soc_update_bits(codec, RT5670_GPIO_CTRL1, RT5670_GP1_PIN_MASK, RT5670_GP1_PIN_IRQ); snd_soc_update_bits(codec, RT5670_CJ_CTRL1, @@ -450,6 +452,10 @@ static int rt5670_headset_detect(struct snd_soc_codec *codec, int jack_insert) snd_soc_dapm_disable_pin(dapm, "Mic Det Power"); snd_soc_dapm_sync(dapm); } + if (rt5670->pdata.hs_ground_control_gpio) { + snd_soc_dapm_disable_pin(dapm, "HS GND Control"); + snd_soc_dapm_sync(dapm); + } } else { snd_soc_update_bits(codec, RT5670_INT_IRQ_ST, 0x8, 0x0); snd_soc_update_bits(codec, RT5670_GEN_CTRL3, 0x4, 0x4); @@ -1542,6 +1548,29 @@ static int rt5670_bst2_event(struct snd_soc_dapm_widget *w, return 0; } +static int rt5670_hs_ground_control_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + snd_soc_update_bits(codec, RT5670_GPIO_CTRL2, + RT5670_GP2_OUT_MASK, RT5670_GP2_OUT_HI); + break; + + case SND_SOC_DAPM_POST_PMD: + snd_soc_update_bits(codec, RT5670_GPIO_CTRL2, + RT5670_GP2_OUT_MASK, RT5670_GP2_OUT_LO); + break; + + default: + return 0; + } + + return 0; +} + static const struct snd_soc_dapm_widget rt5670_dapm_widgets[] = { SND_SOC_DAPM_SUPPLY("PLL1", RT5670_PWR_ANLG2, RT5670_PWR_PLL_BIT, 0, NULL, 0), @@ -1917,6 +1946,12 @@ static int rt5670_bst2_event(struct snd_soc_dapm_widget *w, SND_SOC_DAPM_OUTPUT("SPORN"), }; +static const struct snd_soc_dapm_widget hs_gnd_cnotrol_widgets[] = { + SND_SOC_DAPM_SUPPLY("HS GND Control", SND_SOC_NOPM, 0, 0, + rt5670_hs_ground_control_event, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), +}; + static const struct snd_soc_dapm_route rt5670_dapm_routes[] = { { "ADC Stereo1 Filter", NULL, "ADC STO1 ASRC", is_using_asrc }, { "ADC Stereo2 Filter", NULL, "ADC STO2 ASRC", is_using_asrc }, @@ -2314,6 +2349,11 @@ static int rt5670_bst2_event(struct snd_soc_dapm_widget *w, { "SPORN", NULL, "SPO Amp" }, }; +static const struct snd_soc_dapm_route hs_gnd_cnotrol_routes[] = { + { "BST1", NULL, "HS GND Control" }, + { "HP Amp", NULL, "HS GND Control" }, +}; + static int rt5670_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { @@ -2679,6 +2719,13 @@ static int rt5670_probe(struct snd_soc_codec *codec) "The driver is for RT5670 RT5671 or RT5672 only\n"); return -ENODEV; } + if (rt5670->pdata.hs_ground_control_gpio) { + snd_soc_dapm_new_controls(dapm, hs_gnd_cnotrol_widgets, + ARRAY_SIZE(hs_gnd_cnotrol_widgets)); + snd_soc_dapm_add_routes(dapm, hs_gnd_cnotrol_routes, + ARRAY_SIZE(hs_gnd_cnotrol_routes)); + } + rt5670->codec = codec; return 0; @@ -2827,6 +2874,10 @@ static int rt5670_resume(struct snd_soc_codec *codec) DMI_MATCH(DMI_BOARD_NAME, "Braswell CRB"), }, }, + {} +}; + +static const struct dmi_system_id dmi_platform_dell_wyse[] = { { .ident = "Dell Wyse 3040", .matches = { @@ -2861,6 +2912,12 @@ static int rt5670_i2c_probe(struct i2c_client *i2c, rt5670->pdata.dmic1_data_pin = RT5670_DMIC_DATA_IN2P; rt5670->pdata.dev_gpio = true; rt5670->pdata.jd_mode = 1; + rt5670->pdata.hs_ground_control_gpio = RT5670_GPIO_NONE; + } else if (dmi_check_system(dmi_platform_dell_wyse)) { + rt5670->pdata.dmic_en = false; + rt5670->pdata.dev_gpio = true; + rt5670->pdata.jd_mode = 1; + rt5670->pdata.hs_ground_control_gpio = RT5670_GPIO2; } rt5670->regmap = devm_regmap_init_i2c(i2c, &rt5670_regmap); @@ -2886,6 +2943,21 @@ static int rt5670_i2c_probe(struct i2c_client *i2c, regmap_write(rt5670->regmap, RT5670_RESET, 0); + switch (rt5670->pdata.hs_ground_control_gpio) { + case RT5670_GPIO_NONE: + break; + case RT5670_GPIO2: + regmap_update_bits(rt5670->regmap, RT5670_GPIO_CTRL2, + RT5670_GP2_PF_MASK | RT5670_GP2_OUT_MASK, + RT5670_GP2_PF_OUT | RT5670_GP2_OUT_LO); + break; + default: + rt5670->pdata.hs_ground_control_gpio = + RT5670_GPIO_NONE; + dev_warn(&i2c->dev, "Only Support GPIO2 currently\n"); + break; + } + regmap_read(rt5670->regmap, RT5670_VENDOR_ID, &val); if (val >= 4) regmap_write(rt5670->regmap, RT5670_GPIO_CTRL3, 0x0980); -- 1.8.1.1.439.g50a6b54

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[alsa-devel] [PATCH v3 0/8] Add sun8i A33 audio driver
by Mylène Josserand 01 Feb '17

01 Feb '17

Hello everyone, This a V3 of my Allwinner A33 (sun8i) audio codec driver. Tested on linux-next-20170131 tag. Changes since V2: - Removed patches from v2 already merged: commit ebad64d193779 ("ASoC: sun4i-i2s: Increase DMA max burst to 8") commit 603a0c8af9cb2 ("clk: sunxi-ng: a33: Add CLK_SET_RATE_PARENT to ac-dig") - Removed "reset-names" from sun4i-i2s driver - Fixed the build warning from sun8i-codec - Fixed some various topics such as subject line for dt bindings patch, renamed the simple-card and disabled the simple-card. Changes since V1: - Remove the analog codec driver as a better version has been committed by Chen-Yu Tsai and is already merged. - Remove the audio-card as simple-card can be used - The DMA maxburst is set to 8 in the sun4i-i2s instead of adding the maxburst of 4 in Sun6i dma engine. - Create a new compatible for sun4i-i2s to handle the reset line. - Fix various problems in sun8i-codec driver according to V1's reviews - Add the pm_runtime hooks in sun8i-codec driver to prepare/ unprepare clocks. - Update the DTS according to Chen-Yu's analog codec driver. - Rename sun8i-codec's clocks to "bus" and "mod" - The first "delay" issue from V1 is fixed by using a delay when enabling the headphone amplifier to let the amplifier being up. Patches 1 and 2 add a new compatible "allwinner,sun6i-a31-i2s" to handle the reset line for sun4i-i2s driver. It uses a quirk to use a version with or without reset lines. Patch 3 adds the sun8i codec driver which represents the digital part of the A33 codec. It supports only playback features. Path 4 fixes the previous issue of a "first time delay" in V1 (see cover letter). Do not hesitate if you have comments on this patch. Patches 5 adds the dt-bindings documentation for new audio driver added in this serie (sun8i-codec). Patch 6 adds the cpu DAI, codec and audio nodes to sun8i-a33 device tree. Patches 7 and 8 enable the audio on Parrot and Sinlinx's boards. The DAI for this A33 codec is the same than for A20: "sun4i-i2s". Currently, the sun8i-a33 codec driver handles only the playback feature. The other ones (such as capture) and all other interfaces except headphone are not supported. I will send a patch to handle the capture with microphones in next few weeks. Examples of amixer commands: amixer set 'Headphone' 75% amixer set 'Headphone' on amixer set 'DAC' on amixer set 'Right DAC Mixer RSlot 0' on amixer set 'Left DAC Mixer LSlot 0' on It was tested on Parrot and Sinlinx boards. Let me know if you have any comments on this serie. Thank you in advance, Best regards, Mylène Josserand (8): ASoC: sun4i-i2s: Update binding documentation to include A31 ASoC: sun4i-i2s: Add quirks to handle a31 compatible ASoC: Add sun8i digital audio codec ASoC: sun8i-codec-analog: Add amplifier event to fix first delay ASoC: codecs: Add sun8i-a33 binding documentation ARM: dts: sun8i: Add audio codec, dai and card for A33 ARM: dts: sun8i: parrot: Enable audio nodes ARM: dts: sun8i: sinlinx: Enable audio nodes .../devicetree/bindings/sound/sun4i-i2s.txt | 5 + .../devicetree/bindings/sound/sun8i-a33-codec.txt | 75 ++++ arch/arm/boot/dts/sun8i-a33-sinlinx-sina33.dts | 12 + arch/arm/boot/dts/sun8i-a33.dtsi | 45 ++ arch/arm/boot/dts/sun8i-r16-parrot.dts | 12 + sound/soc/sunxi/Kconfig | 11 + sound/soc/sunxi/Makefile | 1 + sound/soc/sunxi/sun4i-i2s.c | 57 ++- sound/soc/sunxi/sun8i-codec-analog.c | 30 +- sound/soc/sunxi/sun8i-codec.c | 499 +++++++++++++++++++++ 10 files changed, 743 insertions(+), 4 deletions(-) create mode 100644 Documentation/devicetree/bindings/sound/sun8i-a33-codec.txt create mode 100644 sound/soc/sunxi/sun8i-codec.c -- 2.11.0

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[alsa-devel] [PATCH] ALSA: x86: hdmi: fix build with CONFIG_PM=n
by Arnd Bergmann 01 Feb '17

01 Feb '17

The runtime_status field is defined conditionally and must not be accessed outside of #ifdef CONFIG_PM: sound/x86/intel_hdmi_audio_if.c: In function 'hdmi_audio_suspend': sound/x86/intel_hdmi_audio_if.c:112:30: error: 'struct dev_pm_info' has no member named 'runtime_status' if (intelhaddata->dev->power.runtime_status != RPM_SUSPENDED) { pm_runtime_status_suspended() does what we need here. Fixes: 5dab11d89777 ("ALSA: x86: hdmi: Add audio support for BYT and CHT") Signed-off-by: Arnd Bergmann <arnd(a)arndb.de> --- sound/x86/intel_hdmi_audio_if.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/x86/intel_hdmi_audio_if.c b/sound/x86/intel_hdmi_audio_if.c index 9ae242d62eb2..99eecef87e62 100644 --- a/sound/x86/intel_hdmi_audio_if.c +++ b/sound/x86/intel_hdmi_audio_if.c @@ -109,7 +109,7 @@ int hdmi_audio_suspend(void *haddata, struct hdmi_audio_event event) had_stream = intelhaddata->private_data; substream = intelhaddata->stream_info.had_substream; - if (intelhaddata->dev->power.runtime_status != RPM_SUSPENDED) { + if (!pm_runtime_status_suspended(intelhaddata->dev)) { pr_err("audio stream is active\n"); return -EAGAIN; } -- 2.9.0

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[alsa-devel] [PATCH] ASoC: bcm2835: Remove redundant channel checking code in hw_params
by Matt Flax 01 Feb '17

01 Feb '17

Due to channels_max and channels_min in the bcm2835_i2s_dai structure, the channel guard code in bcm2835_i2s_hw_params is redundant. The bcm2835_i2s_hw_params function checks that the channel count is 2 before continuing. This code never gets executed because core soc checks prevent the execution (upon channel mismatch) of the bcm2835_i2s_hw_params function. The redundancy has been tested and checked for the case when the bcm2835_i2s_dai structure has channels_max = 2 and a request for 8 channels has been made. The test has confirmed that the removed code is redundant as it never gets executed when a channel mismatch occurs. This redundant channel count check may seem like it will not cause any problems however some sound cards (such as the 8 channel AudioInjector Octo sound card) require the execution of the bcm2835_i2s_hw_params function when channels_max in the bcm2835_i2s_dai structure has been increased to 8. As the channel checking code in bcm2835_i2s_hw_params is redundant and stops certain cards from working it has been removed. Signed-off-by: Matt Flax <flatmax(a)flatmax.org> --- sound/soc/bcm/bcm2835-i2s.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) diff --git a/sound/soc/bcm/bcm2835-i2s.c b/sound/soc/bcm/bcm2835-i2s.c index 6ba2049..1773b83 100644 --- a/sound/soc/bcm/bcm2835-i2s.c +++ b/sound/soc/bcm/bcm2835-i2s.c @@ -310,15 +310,9 @@ static int bcm2835_i2s_hw_params(struct snd_pcm_substream *substream, ch1pos = data_delay; ch2pos = bclk_ratio / 2 + data_delay; - switch (params_channels(params)) { - case 2: - format = BCM2835_I2S_CH1(format) | BCM2835_I2S_CH2(format); - format |= BCM2835_I2S_CH1(BCM2835_I2S_CHPOS(ch1pos)); - format |= BCM2835_I2S_CH2(BCM2835_I2S_CHPOS(ch2pos)); - break; - default: - return -EINVAL; - } + format = BCM2835_I2S_CH1(format) | BCM2835_I2S_CH2(format); + format |= BCM2835_I2S_CH1(BCM2835_I2S_CHPOS(ch1pos)); + format |= BCM2835_I2S_CH2(BCM2835_I2S_CHPOS(ch2pos)); /* * Set format for both streams. -- 2.7.4

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