1775 lines
55 KiB
C
1775 lines
55 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
//
|
|
// nau8821.c -- Nuvoton NAU88L21 audio codec driver
|
|
//
|
|
// Copyright 2021 Nuvoton Technology Corp.
|
|
// Author: John Hsu <kchsu0@nuvoton.com>
|
|
// Co-author: Seven Lee <wtli@nuvoton.com>
|
|
//
|
|
|
|
#include <linux/acpi.h>
|
|
#include <linux/clk.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/init.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/module.h>
|
|
#include <linux/math64.h>
|
|
#include <linux/regmap.h>
|
|
#include <linux/slab.h>
|
|
#include <sound/core.h>
|
|
#include <sound/initval.h>
|
|
#include <sound/jack.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/pcm_params.h>
|
|
#include <sound/soc.h>
|
|
#include <sound/tlv.h>
|
|
#include "nau8821.h"
|
|
|
|
#define NAU_FREF_MAX 13500000
|
|
#define NAU_FVCO_MAX 100000000
|
|
#define NAU_FVCO_MIN 90000000
|
|
|
|
#define NAU8821_BUTTON SND_JACK_BTN_0
|
|
|
|
/* the maximum frequency of CLK_ADC and CLK_DAC */
|
|
#define CLK_DA_AD_MAX 6144000
|
|
|
|
static int nau8821_configure_sysclk(struct nau8821 *nau8821,
|
|
int clk_id, unsigned int freq);
|
|
static bool nau8821_is_jack_inserted(struct regmap *regmap);
|
|
|
|
struct nau8821_fll {
|
|
int mclk_src;
|
|
int ratio;
|
|
int fll_frac;
|
|
int fll_int;
|
|
int clk_ref_div;
|
|
};
|
|
|
|
struct nau8821_fll_attr {
|
|
unsigned int param;
|
|
unsigned int val;
|
|
};
|
|
|
|
/* scaling for mclk from sysclk_src output */
|
|
static const struct nau8821_fll_attr mclk_src_scaling[] = {
|
|
{ 1, 0x0 },
|
|
{ 2, 0x2 },
|
|
{ 4, 0x3 },
|
|
{ 8, 0x4 },
|
|
{ 16, 0x5 },
|
|
{ 32, 0x6 },
|
|
{ 3, 0x7 },
|
|
{ 6, 0xa },
|
|
{ 12, 0xb },
|
|
{ 24, 0xc },
|
|
{ 48, 0xd },
|
|
{ 96, 0xe },
|
|
{ 5, 0xf },
|
|
};
|
|
|
|
/* ratio for input clk freq */
|
|
static const struct nau8821_fll_attr fll_ratio[] = {
|
|
{ 512000, 0x01 },
|
|
{ 256000, 0x02 },
|
|
{ 128000, 0x04 },
|
|
{ 64000, 0x08 },
|
|
{ 32000, 0x10 },
|
|
{ 8000, 0x20 },
|
|
{ 4000, 0x40 },
|
|
};
|
|
|
|
static const struct nau8821_fll_attr fll_pre_scalar[] = {
|
|
{ 0, 0x0 },
|
|
{ 1, 0x1 },
|
|
{ 2, 0x2 },
|
|
{ 3, 0x3 },
|
|
};
|
|
|
|
/* over sampling rate */
|
|
struct nau8821_osr_attr {
|
|
unsigned int osr;
|
|
unsigned int clk_src;
|
|
};
|
|
|
|
static const struct nau8821_osr_attr osr_dac_sel[] = {
|
|
{ 64, 2 }, /* OSR 64, SRC 1/4 */
|
|
{ 256, 0 }, /* OSR 256, SRC 1 */
|
|
{ 128, 1 }, /* OSR 128, SRC 1/2 */
|
|
{ 0, 0 },
|
|
{ 32, 3 }, /* OSR 32, SRC 1/8 */
|
|
};
|
|
|
|
static const struct nau8821_osr_attr osr_adc_sel[] = {
|
|
{ 32, 3 }, /* OSR 32, SRC 1/8 */
|
|
{ 64, 2 }, /* OSR 64, SRC 1/4 */
|
|
{ 128, 1 }, /* OSR 128, SRC 1/2 */
|
|
{ 256, 0 }, /* OSR 256, SRC 1 */
|
|
};
|
|
|
|
struct nau8821_dmic_speed {
|
|
unsigned int param;
|
|
unsigned int val;
|
|
};
|
|
|
|
static const struct nau8821_dmic_speed dmic_speed_sel[] = {
|
|
{ 0, 0x0 }, /*SPEED 1, SRC 1 */
|
|
{ 1, 0x1 }, /*SPEED 2, SRC 1/2 */
|
|
{ 2, 0x2 }, /*SPEED 4, SRC 1/4 */
|
|
{ 3, 0x3 }, /*SPEED 8, SRC 1/8 */
|
|
};
|
|
|
|
static const struct reg_default nau8821_reg_defaults[] = {
|
|
{ NAU8821_R01_ENA_CTRL, 0x00ff },
|
|
{ NAU8821_R03_CLK_DIVIDER, 0x0050 },
|
|
{ NAU8821_R04_FLL1, 0x0 },
|
|
{ NAU8821_R05_FLL2, 0x00bc },
|
|
{ NAU8821_R06_FLL3, 0x0008 },
|
|
{ NAU8821_R07_FLL4, 0x0010 },
|
|
{ NAU8821_R08_FLL5, 0x4000 },
|
|
{ NAU8821_R09_FLL6, 0x6900 },
|
|
{ NAU8821_R0A_FLL7, 0x0031 },
|
|
{ NAU8821_R0B_FLL8, 0x26e9 },
|
|
{ NAU8821_R0D_JACK_DET_CTRL, 0x0 },
|
|
{ NAU8821_R0F_INTERRUPT_MASK, 0x0 },
|
|
{ NAU8821_R12_INTERRUPT_DIS_CTRL, 0xffff },
|
|
{ NAU8821_R13_DMIC_CTRL, 0x0 },
|
|
{ NAU8821_R1A_GPIO12_CTRL, 0x0 },
|
|
{ NAU8821_R1B_TDM_CTRL, 0x0 },
|
|
{ NAU8821_R1C_I2S_PCM_CTRL1, 0x000a },
|
|
{ NAU8821_R1D_I2S_PCM_CTRL2, 0x8010 },
|
|
{ NAU8821_R1E_LEFT_TIME_SLOT, 0x0 },
|
|
{ NAU8821_R1F_RIGHT_TIME_SLOT, 0x0 },
|
|
{ NAU8821_R21_BIQ0_COF1, 0x0 },
|
|
{ NAU8821_R22_BIQ0_COF2, 0x0 },
|
|
{ NAU8821_R23_BIQ0_COF3, 0x0 },
|
|
{ NAU8821_R24_BIQ0_COF4, 0x0 },
|
|
{ NAU8821_R25_BIQ0_COF5, 0x0 },
|
|
{ NAU8821_R26_BIQ0_COF6, 0x0 },
|
|
{ NAU8821_R27_BIQ0_COF7, 0x0 },
|
|
{ NAU8821_R28_BIQ0_COF8, 0x0 },
|
|
{ NAU8821_R29_BIQ0_COF9, 0x0 },
|
|
{ NAU8821_R2A_BIQ0_COF10, 0x0 },
|
|
{ NAU8821_R2B_ADC_RATE, 0x0002 },
|
|
{ NAU8821_R2C_DAC_CTRL1, 0x0082 },
|
|
{ NAU8821_R2D_DAC_CTRL2, 0x0 },
|
|
{ NAU8821_R2F_DAC_DGAIN_CTRL, 0x0 },
|
|
{ NAU8821_R30_ADC_DGAIN_CTRL, 0x0 },
|
|
{ NAU8821_R31_MUTE_CTRL, 0x0 },
|
|
{ NAU8821_R32_HSVOL_CTRL, 0x0 },
|
|
{ NAU8821_R34_DACR_CTRL, 0xcfcf },
|
|
{ NAU8821_R35_ADC_DGAIN_CTRL1, 0xcfcf },
|
|
{ NAU8821_R36_ADC_DRC_KNEE_IP12, 0x1486 },
|
|
{ NAU8821_R37_ADC_DRC_KNEE_IP34, 0x0f12 },
|
|
{ NAU8821_R38_ADC_DRC_SLOPES, 0x25ff },
|
|
{ NAU8821_R39_ADC_DRC_ATKDCY, 0x3457 },
|
|
{ NAU8821_R3A_DAC_DRC_KNEE_IP12, 0x1486 },
|
|
{ NAU8821_R3B_DAC_DRC_KNEE_IP34, 0x0f12 },
|
|
{ NAU8821_R3C_DAC_DRC_SLOPES, 0x25f9 },
|
|
{ NAU8821_R3D_DAC_DRC_ATKDCY, 0x3457 },
|
|
{ NAU8821_R41_BIQ1_COF1, 0x0 },
|
|
{ NAU8821_R42_BIQ1_COF2, 0x0 },
|
|
{ NAU8821_R43_BIQ1_COF3, 0x0 },
|
|
{ NAU8821_R44_BIQ1_COF4, 0x0 },
|
|
{ NAU8821_R45_BIQ1_COF5, 0x0 },
|
|
{ NAU8821_R46_BIQ1_COF6, 0x0 },
|
|
{ NAU8821_R47_BIQ1_COF7, 0x0 },
|
|
{ NAU8821_R48_BIQ1_COF8, 0x0 },
|
|
{ NAU8821_R49_BIQ1_COF9, 0x0 },
|
|
{ NAU8821_R4A_BIQ1_COF10, 0x0 },
|
|
{ NAU8821_R4B_CLASSG_CTRL, 0x0 },
|
|
{ NAU8821_R4C_IMM_MODE_CTRL, 0x0 },
|
|
{ NAU8821_R4D_IMM_RMS_L, 0x0 },
|
|
{ NAU8821_R53_OTPDOUT_1, 0xaad8 },
|
|
{ NAU8821_R54_OTPDOUT_2, 0x0002 },
|
|
{ NAU8821_R55_MISC_CTRL, 0x0 },
|
|
{ NAU8821_R66_BIAS_ADJ, 0x0 },
|
|
{ NAU8821_R68_TRIM_SETTINGS, 0x0 },
|
|
{ NAU8821_R69_ANALOG_CONTROL_1, 0x0 },
|
|
{ NAU8821_R6A_ANALOG_CONTROL_2, 0x0 },
|
|
{ NAU8821_R6B_PGA_MUTE, 0x0 },
|
|
{ NAU8821_R71_ANALOG_ADC_1, 0x0011 },
|
|
{ NAU8821_R72_ANALOG_ADC_2, 0x0020 },
|
|
{ NAU8821_R73_RDAC, 0x0008 },
|
|
{ NAU8821_R74_MIC_BIAS, 0x0006 },
|
|
{ NAU8821_R76_BOOST, 0x0 },
|
|
{ NAU8821_R77_FEPGA, 0x0 },
|
|
{ NAU8821_R7E_PGA_GAIN, 0x0 },
|
|
{ NAU8821_R7F_POWER_UP_CONTROL, 0x0 },
|
|
{ NAU8821_R80_CHARGE_PUMP, 0x0 },
|
|
};
|
|
|
|
static bool nau8821_readable_reg(struct device *dev, unsigned int reg)
|
|
{
|
|
switch (reg) {
|
|
case NAU8821_R00_RESET ... NAU8821_R01_ENA_CTRL:
|
|
case NAU8821_R03_CLK_DIVIDER ... NAU8821_R0B_FLL8:
|
|
case NAU8821_R0D_JACK_DET_CTRL:
|
|
case NAU8821_R0F_INTERRUPT_MASK ... NAU8821_R13_DMIC_CTRL:
|
|
case NAU8821_R1A_GPIO12_CTRL ... NAU8821_R1F_RIGHT_TIME_SLOT:
|
|
case NAU8821_R21_BIQ0_COF1 ... NAU8821_R2D_DAC_CTRL2:
|
|
case NAU8821_R2F_DAC_DGAIN_CTRL ... NAU8821_R32_HSVOL_CTRL:
|
|
case NAU8821_R34_DACR_CTRL ... NAU8821_R3D_DAC_DRC_ATKDCY:
|
|
case NAU8821_R41_BIQ1_COF1 ... NAU8821_R4F_FUSE_CTRL3:
|
|
case NAU8821_R51_FUSE_CTRL1:
|
|
case NAU8821_R53_OTPDOUT_1 ... NAU8821_R55_MISC_CTRL:
|
|
case NAU8821_R58_I2C_DEVICE_ID ... NAU8821_R5A_SOFTWARE_RST:
|
|
case NAU8821_R66_BIAS_ADJ:
|
|
case NAU8821_R68_TRIM_SETTINGS ... NAU8821_R6B_PGA_MUTE:
|
|
case NAU8821_R71_ANALOG_ADC_1 ... NAU8821_R74_MIC_BIAS:
|
|
case NAU8821_R76_BOOST ... NAU8821_R77_FEPGA:
|
|
case NAU8821_R7E_PGA_GAIN ... NAU8821_R82_GENERAL_STATUS:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static bool nau8821_writeable_reg(struct device *dev, unsigned int reg)
|
|
{
|
|
switch (reg) {
|
|
case NAU8821_R00_RESET ... NAU8821_R01_ENA_CTRL:
|
|
case NAU8821_R03_CLK_DIVIDER ... NAU8821_R0B_FLL8:
|
|
case NAU8821_R0D_JACK_DET_CTRL:
|
|
case NAU8821_R0F_INTERRUPT_MASK:
|
|
case NAU8821_R11_INT_CLR_KEY_STATUS ... NAU8821_R13_DMIC_CTRL:
|
|
case NAU8821_R1A_GPIO12_CTRL ... NAU8821_R1F_RIGHT_TIME_SLOT:
|
|
case NAU8821_R21_BIQ0_COF1 ... NAU8821_R2D_DAC_CTRL2:
|
|
case NAU8821_R2F_DAC_DGAIN_CTRL ... NAU8821_R32_HSVOL_CTRL:
|
|
case NAU8821_R34_DACR_CTRL ... NAU8821_R3D_DAC_DRC_ATKDCY:
|
|
case NAU8821_R41_BIQ1_COF1 ... NAU8821_R4C_IMM_MODE_CTRL:
|
|
case NAU8821_R4E_FUSE_CTRL2 ... NAU8821_R4F_FUSE_CTRL3:
|
|
case NAU8821_R51_FUSE_CTRL1:
|
|
case NAU8821_R55_MISC_CTRL:
|
|
case NAU8821_R5A_SOFTWARE_RST:
|
|
case NAU8821_R66_BIAS_ADJ:
|
|
case NAU8821_R68_TRIM_SETTINGS ... NAU8821_R6B_PGA_MUTE:
|
|
case NAU8821_R71_ANALOG_ADC_1 ... NAU8821_R74_MIC_BIAS:
|
|
case NAU8821_R76_BOOST ... NAU8821_R77_FEPGA:
|
|
case NAU8821_R7E_PGA_GAIN ... NAU8821_R80_CHARGE_PUMP:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static bool nau8821_volatile_reg(struct device *dev, unsigned int reg)
|
|
{
|
|
switch (reg) {
|
|
case NAU8821_R00_RESET:
|
|
case NAU8821_R10_IRQ_STATUS ... NAU8821_R11_INT_CLR_KEY_STATUS:
|
|
case NAU8821_R21_BIQ0_COF1 ... NAU8821_R2A_BIQ0_COF10:
|
|
case NAU8821_R41_BIQ1_COF1 ... NAU8821_R4A_BIQ1_COF10:
|
|
case NAU8821_R4D_IMM_RMS_L:
|
|
case NAU8821_R53_OTPDOUT_1 ... NAU8821_R54_OTPDOUT_2:
|
|
case NAU8821_R58_I2C_DEVICE_ID ... NAU8821_R5A_SOFTWARE_RST:
|
|
case NAU8821_R81_CHARGE_PUMP_INPUT_READ ... NAU8821_R82_GENERAL_STATUS:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static int nau8821_biq_coeff_get(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
|
|
struct soc_bytes_ext *params = (void *)kcontrol->private_value;
|
|
|
|
if (!component->regmap)
|
|
return -EINVAL;
|
|
|
|
regmap_raw_read(component->regmap, NAU8821_R21_BIQ0_COF1,
|
|
ucontrol->value.bytes.data, params->max);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nau8821_biq_coeff_put(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
|
|
struct soc_bytes_ext *params = (void *)kcontrol->private_value;
|
|
void *data;
|
|
|
|
if (!component->regmap)
|
|
return -EINVAL;
|
|
|
|
data = kmemdup(ucontrol->value.bytes.data,
|
|
params->max, GFP_KERNEL | GFP_DMA);
|
|
if (!data)
|
|
return -ENOMEM;
|
|
|
|
regmap_raw_write(component->regmap, NAU8821_R21_BIQ0_COF1,
|
|
data, params->max);
|
|
|
|
kfree(data);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const char * const nau8821_adc_decimation[] = {
|
|
"32", "64", "128", "256" };
|
|
|
|
static const struct soc_enum nau8821_adc_decimation_enum =
|
|
SOC_ENUM_SINGLE(NAU8821_R2B_ADC_RATE, NAU8821_ADC_SYNC_DOWN_SFT,
|
|
ARRAY_SIZE(nau8821_adc_decimation), nau8821_adc_decimation);
|
|
|
|
static const char * const nau8821_dac_oversampl[] = {
|
|
"64", "256", "128", "", "32" };
|
|
|
|
static const struct soc_enum nau8821_dac_oversampl_enum =
|
|
SOC_ENUM_SINGLE(NAU8821_R2C_DAC_CTRL1, NAU8821_DAC_OVERSAMPLE_SFT,
|
|
ARRAY_SIZE(nau8821_dac_oversampl), nau8821_dac_oversampl);
|
|
|
|
static const DECLARE_TLV_DB_MINMAX_MUTE(adc_vol_tlv, -6600, 2400);
|
|
static const DECLARE_TLV_DB_MINMAX_MUTE(sidetone_vol_tlv, -4200, 0);
|
|
static const DECLARE_TLV_DB_MINMAX(hp_vol_tlv, -900, 0);
|
|
static const DECLARE_TLV_DB_SCALE(playback_vol_tlv, -6600, 50, 1);
|
|
static const DECLARE_TLV_DB_MINMAX(fepga_gain_tlv, -100, 3600);
|
|
static const DECLARE_TLV_DB_MINMAX_MUTE(crosstalk_vol_tlv, -7000, 2400);
|
|
|
|
static const struct snd_kcontrol_new nau8821_controls[] = {
|
|
SOC_DOUBLE_TLV("Mic Volume", NAU8821_R35_ADC_DGAIN_CTRL1,
|
|
NAU8821_ADCL_CH_VOL_SFT, NAU8821_ADCR_CH_VOL_SFT,
|
|
0xff, 0, adc_vol_tlv),
|
|
SOC_DOUBLE_TLV("Headphone Bypass Volume", NAU8821_R30_ADC_DGAIN_CTRL,
|
|
12, 8, 0x0f, 0, sidetone_vol_tlv),
|
|
SOC_DOUBLE_TLV("Headphone Volume", NAU8821_R32_HSVOL_CTRL,
|
|
NAU8821_HPL_VOL_SFT, NAU8821_HPR_VOL_SFT, 0x3, 1, hp_vol_tlv),
|
|
SOC_DOUBLE_TLV("Digital Playback Volume", NAU8821_R34_DACR_CTRL,
|
|
NAU8821_DACL_CH_VOL_SFT, NAU8821_DACR_CH_VOL_SFT,
|
|
0xcf, 0, playback_vol_tlv),
|
|
SOC_DOUBLE_TLV("Frontend PGA Volume", NAU8821_R7E_PGA_GAIN,
|
|
NAU8821_PGA_GAIN_L_SFT, NAU8821_PGA_GAIN_R_SFT,
|
|
37, 0, fepga_gain_tlv),
|
|
SOC_DOUBLE_TLV("Headphone Crosstalk Volume",
|
|
NAU8821_R2F_DAC_DGAIN_CTRL,
|
|
0, 8, 0xff, 0, crosstalk_vol_tlv),
|
|
|
|
SOC_ENUM("ADC Decimation Rate", nau8821_adc_decimation_enum),
|
|
SOC_ENUM("DAC Oversampling Rate", nau8821_dac_oversampl_enum),
|
|
SND_SOC_BYTES_EXT("BIQ Coefficients", 20,
|
|
nau8821_biq_coeff_get, nau8821_biq_coeff_put),
|
|
SOC_SINGLE("ADC Phase Switch", NAU8821_R1B_TDM_CTRL,
|
|
NAU8821_ADCPHS_SFT, 1, 0),
|
|
};
|
|
|
|
static const struct snd_kcontrol_new nau8821_dmic_mode_switch =
|
|
SOC_DAPM_SINGLE("Switch", NAU8821_R13_DMIC_CTRL,
|
|
NAU8821_DMIC_EN_SFT, 1, 0);
|
|
|
|
static int dmic_clock_control(struct snd_soc_dapm_widget *w,
|
|
struct snd_kcontrol *k, int event)
|
|
{
|
|
struct snd_soc_component *component =
|
|
snd_soc_dapm_to_component(w->dapm);
|
|
struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component);
|
|
int i, speed_selection = -1, clk_adc_src, clk_adc;
|
|
unsigned int clk_divider_r03;
|
|
|
|
/* The DMIC clock is gotten from adc clock divided by
|
|
* CLK_DMIC_SRC (1, 2, 4, 8). The clock has to be equal or
|
|
* less than nau8821->dmic_clk_threshold.
|
|
*/
|
|
regmap_read(nau8821->regmap, NAU8821_R03_CLK_DIVIDER,
|
|
&clk_divider_r03);
|
|
clk_adc_src = (clk_divider_r03 & NAU8821_CLK_ADC_SRC_MASK)
|
|
>> NAU8821_CLK_ADC_SRC_SFT;
|
|
clk_adc = (nau8821->fs * 256) >> clk_adc_src;
|
|
|
|
for (i = 0 ; i < 4 ; i++)
|
|
if ((clk_adc >> dmic_speed_sel[i].param) <=
|
|
nau8821->dmic_clk_threshold) {
|
|
speed_selection = dmic_speed_sel[i].val;
|
|
break;
|
|
}
|
|
if (i == 4)
|
|
return -EINVAL;
|
|
|
|
dev_dbg(nau8821->dev,
|
|
"clk_adc=%d, dmic_clk_threshold = %d, param=%d, val = %d\n",
|
|
clk_adc, nau8821->dmic_clk_threshold,
|
|
dmic_speed_sel[i].param, dmic_speed_sel[i].val);
|
|
regmap_update_bits(nau8821->regmap, NAU8821_R13_DMIC_CTRL,
|
|
NAU8821_DMIC_SRC_MASK,
|
|
(speed_selection << NAU8821_DMIC_SRC_SFT));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nau8821_left_adc_event(struct snd_soc_dapm_widget *w,
|
|
struct snd_kcontrol *kcontrol, int event)
|
|
{
|
|
struct snd_soc_component *component =
|
|
snd_soc_dapm_to_component(w->dapm);
|
|
struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component);
|
|
|
|
switch (event) {
|
|
case SND_SOC_DAPM_POST_PMU:
|
|
msleep(125);
|
|
regmap_update_bits(nau8821->regmap, NAU8821_R01_ENA_CTRL,
|
|
NAU8821_EN_ADCL, NAU8821_EN_ADCL);
|
|
break;
|
|
case SND_SOC_DAPM_POST_PMD:
|
|
regmap_update_bits(nau8821->regmap,
|
|
NAU8821_R01_ENA_CTRL, NAU8821_EN_ADCL, 0);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nau8821_right_adc_event(struct snd_soc_dapm_widget *w,
|
|
struct snd_kcontrol *kcontrol, int event)
|
|
{
|
|
struct snd_soc_component *component =
|
|
snd_soc_dapm_to_component(w->dapm);
|
|
struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component);
|
|
|
|
switch (event) {
|
|
case SND_SOC_DAPM_POST_PMU:
|
|
msleep(125);
|
|
regmap_update_bits(nau8821->regmap, NAU8821_R01_ENA_CTRL,
|
|
NAU8821_EN_ADCR, NAU8821_EN_ADCR);
|
|
break;
|
|
case SND_SOC_DAPM_POST_PMD:
|
|
regmap_update_bits(nau8821->regmap,
|
|
NAU8821_R01_ENA_CTRL, NAU8821_EN_ADCR, 0);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nau8821_pump_event(struct snd_soc_dapm_widget *w,
|
|
struct snd_kcontrol *kcontrol, int event)
|
|
{
|
|
struct snd_soc_component *component =
|
|
snd_soc_dapm_to_component(w->dapm);
|
|
struct nau8821 *nau8821 =
|
|
snd_soc_component_get_drvdata(component);
|
|
|
|
switch (event) {
|
|
case SND_SOC_DAPM_POST_PMU:
|
|
/* Prevent startup click by letting charge pump to ramp up */
|
|
msleep(20);
|
|
regmap_update_bits(nau8821->regmap, NAU8821_R80_CHARGE_PUMP,
|
|
NAU8821_JAMNODCLOW, NAU8821_JAMNODCLOW);
|
|
break;
|
|
case SND_SOC_DAPM_PRE_PMD:
|
|
regmap_update_bits(nau8821->regmap, NAU8821_R80_CHARGE_PUMP,
|
|
NAU8821_JAMNODCLOW, 0);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nau8821_output_dac_event(struct snd_soc_dapm_widget *w,
|
|
struct snd_kcontrol *kcontrol, int event)
|
|
{
|
|
struct snd_soc_component *component =
|
|
snd_soc_dapm_to_component(w->dapm);
|
|
struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component);
|
|
|
|
switch (event) {
|
|
case SND_SOC_DAPM_PRE_PMU:
|
|
/* Disables the TESTDAC to let DAC signal pass through. */
|
|
regmap_update_bits(nau8821->regmap, NAU8821_R66_BIAS_ADJ,
|
|
NAU8821_BIAS_TESTDAC_EN, 0);
|
|
break;
|
|
case SND_SOC_DAPM_POST_PMD:
|
|
regmap_update_bits(nau8821->regmap, NAU8821_R66_BIAS_ADJ,
|
|
NAU8821_BIAS_TESTDAC_EN, NAU8821_BIAS_TESTDAC_EN);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int system_clock_control(struct snd_soc_dapm_widget *w,
|
|
struct snd_kcontrol *k, int event)
|
|
{
|
|
struct snd_soc_component *component =
|
|
snd_soc_dapm_to_component(w->dapm);
|
|
struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component);
|
|
|
|
if (SND_SOC_DAPM_EVENT_OFF(event)) {
|
|
dev_dbg(nau8821->dev, "system clock control : POWER OFF\n");
|
|
/* 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 (nau8821_is_jack_inserted(nau8821->regmap)) {
|
|
nau8821_configure_sysclk(nau8821,
|
|
NAU8821_CLK_INTERNAL, 0);
|
|
} else {
|
|
nau8821_configure_sysclk(nau8821, NAU8821_CLK_DIS, 0);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static const struct snd_soc_dapm_widget nau8821_dapm_widgets[] = {
|
|
SND_SOC_DAPM_SUPPLY("System Clock", SND_SOC_NOPM, 0, 0,
|
|
system_clock_control, SND_SOC_DAPM_POST_PMD),
|
|
SND_SOC_DAPM_SUPPLY("MICBIAS", NAU8821_R74_MIC_BIAS,
|
|
NAU8821_MICBIAS_POWERUP_SFT, 0, NULL, 0),
|
|
SND_SOC_DAPM_SUPPLY("DMIC Clock", SND_SOC_NOPM, 0, 0,
|
|
dmic_clock_control, SND_SOC_DAPM_POST_PMU),
|
|
SND_SOC_DAPM_ADC("ADCL Power", NULL, NAU8821_R72_ANALOG_ADC_2,
|
|
NAU8821_POWERUP_ADCL_SFT, 0),
|
|
SND_SOC_DAPM_ADC("ADCR Power", NULL, NAU8821_R72_ANALOG_ADC_2,
|
|
NAU8821_POWERUP_ADCR_SFT, 0),
|
|
SND_SOC_DAPM_PGA_S("Frontend PGA L", 1, NAU8821_R7F_POWER_UP_CONTROL,
|
|
NAU8821_PUP_PGA_L_SFT, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA_S("Frontend PGA R", 1, NAU8821_R7F_POWER_UP_CONTROL,
|
|
NAU8821_PUP_PGA_R_SFT, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA_S("ADCL Digital path", 0, NAU8821_R01_ENA_CTRL,
|
|
NAU8821_EN_ADCL_SFT, 0, nau8821_left_adc_event,
|
|
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
|
|
SND_SOC_DAPM_PGA_S("ADCR Digital path", 0, NAU8821_R01_ENA_CTRL,
|
|
NAU8821_EN_ADCR_SFT, 0, nau8821_right_adc_event,
|
|
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
|
|
SND_SOC_DAPM_SWITCH("DMIC Enable", SND_SOC_NOPM,
|
|
0, 0, &nau8821_dmic_mode_switch),
|
|
SND_SOC_DAPM_AIF_OUT("AIFTX", "Capture", 0, NAU8821_R1D_I2S_PCM_CTRL2,
|
|
NAU8821_I2S_TRISTATE_SFT, 1),
|
|
SND_SOC_DAPM_AIF_IN("AIFRX", "Playback", 0, SND_SOC_NOPM, 0, 0),
|
|
|
|
SND_SOC_DAPM_PGA_S("ADACL", 2, NAU8821_R73_RDAC,
|
|
NAU8821_DACL_EN_SFT, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA_S("ADACR", 2, NAU8821_R73_RDAC,
|
|
NAU8821_DACR_EN_SFT, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA_S("ADACL Clock", 3, NAU8821_R73_RDAC,
|
|
NAU8821_DACL_CLK_EN_SFT, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA_S("ADACR Clock", 3, NAU8821_R73_RDAC,
|
|
NAU8821_DACR_CLK_EN_SFT, 0, NULL, 0),
|
|
SND_SOC_DAPM_DAC("DDACR", NULL, NAU8821_R01_ENA_CTRL,
|
|
NAU8821_EN_DACR_SFT, 0),
|
|
SND_SOC_DAPM_DAC("DDACL", NULL, NAU8821_R01_ENA_CTRL,
|
|
NAU8821_EN_DACL_SFT, 0),
|
|
SND_SOC_DAPM_PGA_S("HP amp L", 0, NAU8821_R4B_CLASSG_CTRL,
|
|
NAU8821_CLASSG_LDAC_EN_SFT, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA_S("HP amp R", 0, NAU8821_R4B_CLASSG_CTRL,
|
|
NAU8821_CLASSG_RDAC_EN_SFT, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA_S("Charge Pump", 1, NAU8821_R80_CHARGE_PUMP,
|
|
NAU8821_CHANRGE_PUMP_EN_SFT, 0, nau8821_pump_event,
|
|
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
|
|
SND_SOC_DAPM_PGA_S("Output Driver R Stage 1", 4,
|
|
NAU8821_R7F_POWER_UP_CONTROL,
|
|
NAU8821_PUP_INTEG_R_SFT, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA_S("Output Driver L Stage 1", 4,
|
|
NAU8821_R7F_POWER_UP_CONTROL,
|
|
NAU8821_PUP_INTEG_L_SFT, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA_S("Output Driver R Stage 2", 5,
|
|
NAU8821_R7F_POWER_UP_CONTROL,
|
|
NAU8821_PUP_DRV_INSTG_R_SFT, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA_S("Output Driver L Stage 2", 5,
|
|
NAU8821_R7F_POWER_UP_CONTROL,
|
|
NAU8821_PUP_DRV_INSTG_L_SFT, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA_S("Output Driver R Stage 3", 6,
|
|
NAU8821_R7F_POWER_UP_CONTROL,
|
|
NAU8821_PUP_MAIN_DRV_R_SFT, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA_S("Output Driver L Stage 3", 6,
|
|
NAU8821_R7F_POWER_UP_CONTROL,
|
|
NAU8821_PUP_MAIN_DRV_L_SFT, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA_S("Output DACL", 7,
|
|
NAU8821_R80_CHARGE_PUMP, NAU8821_POWER_DOWN_DACL_SFT,
|
|
0, nau8821_output_dac_event,
|
|
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
|
|
SND_SOC_DAPM_PGA_S("Output DACR", 7,
|
|
NAU8821_R80_CHARGE_PUMP, NAU8821_POWER_DOWN_DACR_SFT,
|
|
0, nau8821_output_dac_event,
|
|
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
|
|
|
|
/* HPOL/R are ungrounded by disabling 16 Ohm pull-downs on playback */
|
|
SND_SOC_DAPM_PGA_S("HPOL Pulldown", 8,
|
|
NAU8821_R0D_JACK_DET_CTRL,
|
|
NAU8821_SPKR_DWN1L_SFT, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA_S("HPOR Pulldown", 8,
|
|
NAU8821_R0D_JACK_DET_CTRL,
|
|
NAU8821_SPKR_DWN1R_SFT, 0, NULL, 0),
|
|
|
|
/* High current HPOL/R boost driver */
|
|
SND_SOC_DAPM_PGA_S("HP Boost Driver", 9,
|
|
NAU8821_R76_BOOST, NAU8821_HP_BOOST_DIS_SFT, 1, NULL, 0),
|
|
SND_SOC_DAPM_PGA("Class G", NAU8821_R4B_CLASSG_CTRL,
|
|
NAU8821_CLASSG_EN_SFT, 0, NULL, 0),
|
|
|
|
SND_SOC_DAPM_INPUT("MICL"),
|
|
SND_SOC_DAPM_INPUT("MICR"),
|
|
SND_SOC_DAPM_INPUT("DMIC"),
|
|
SND_SOC_DAPM_OUTPUT("HPOL"),
|
|
SND_SOC_DAPM_OUTPUT("HPOR"),
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route nau8821_dapm_routes[] = {
|
|
{"DMIC Enable", "Switch", "DMIC"},
|
|
{"DMIC Enable", NULL, "DMIC Clock"},
|
|
|
|
{"Frontend PGA L", NULL, "MICL"},
|
|
{"Frontend PGA R", NULL, "MICR"},
|
|
{"Frontend PGA L", NULL, "MICBIAS"},
|
|
{"Frontend PGA R", NULL, "MICBIAS"},
|
|
|
|
{"ADCL Power", NULL, "Frontend PGA L"},
|
|
{"ADCR Power", NULL, "Frontend PGA R"},
|
|
|
|
{"ADCL Digital path", NULL, "ADCL Power"},
|
|
{"ADCR Digital path", NULL, "ADCR Power"},
|
|
{"ADCL Digital path", NULL, "DMIC Enable"},
|
|
{"ADCR Digital path", NULL, "DMIC Enable"},
|
|
|
|
{"AIFTX", NULL, "ADCL Digital path"},
|
|
{"AIFTX", NULL, "ADCR Digital path"},
|
|
|
|
{"AIFTX", NULL, "System Clock"},
|
|
{"AIFRX", NULL, "System Clock"},
|
|
|
|
{"DDACL", NULL, "AIFRX"},
|
|
{"DDACR", NULL, "AIFRX"},
|
|
|
|
{"HP amp L", NULL, "DDACL"},
|
|
{"HP amp R", NULL, "DDACR"},
|
|
|
|
{"Charge Pump", NULL, "HP amp L"},
|
|
{"Charge Pump", NULL, "HP amp R"},
|
|
|
|
{"ADACL", NULL, "Charge Pump"},
|
|
{"ADACR", NULL, "Charge Pump"},
|
|
{"ADACL Clock", NULL, "ADACL"},
|
|
{"ADACR Clock", NULL, "ADACR"},
|
|
|
|
{"Output Driver L Stage 1", NULL, "ADACL Clock"},
|
|
{"Output Driver R Stage 1", NULL, "ADACR Clock"},
|
|
{"Output Driver L Stage 2", NULL, "Output Driver L Stage 1"},
|
|
{"Output Driver R Stage 2", NULL, "Output Driver R Stage 1"},
|
|
{"Output Driver L Stage 3", NULL, "Output Driver L Stage 2"},
|
|
{"Output Driver R Stage 3", NULL, "Output Driver R Stage 2"},
|
|
{"Output DACL", NULL, "Output Driver L Stage 3"},
|
|
{"Output DACR", NULL, "Output Driver R Stage 3"},
|
|
|
|
{"HPOL Pulldown", NULL, "Output DACL"},
|
|
{"HPOR Pulldown", NULL, "Output DACR"},
|
|
{"HP Boost Driver", NULL, "HPOL Pulldown"},
|
|
{"HP Boost Driver", NULL, "HPOR Pulldown"},
|
|
|
|
{"Class G", NULL, "HP Boost Driver"},
|
|
{"HPOL", NULL, "Class G"},
|
|
{"HPOR", NULL, "Class G"},
|
|
};
|
|
|
|
static const struct nau8821_osr_attr *
|
|
nau8821_get_osr(struct nau8821 *nau8821, int stream)
|
|
{
|
|
unsigned int osr;
|
|
|
|
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
|
|
regmap_read(nau8821->regmap, NAU8821_R2C_DAC_CTRL1, &osr);
|
|
osr &= NAU8821_DAC_OVERSAMPLE_MASK;
|
|
if (osr >= ARRAY_SIZE(osr_dac_sel))
|
|
return NULL;
|
|
return &osr_dac_sel[osr];
|
|
} else {
|
|
regmap_read(nau8821->regmap, NAU8821_R2B_ADC_RATE, &osr);
|
|
osr &= NAU8821_ADC_SYNC_DOWN_MASK;
|
|
if (osr >= ARRAY_SIZE(osr_adc_sel))
|
|
return NULL;
|
|
return &osr_adc_sel[osr];
|
|
}
|
|
}
|
|
|
|
static int nau8821_dai_startup(struct snd_pcm_substream *substream,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
struct snd_soc_component *component = dai->component;
|
|
struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component);
|
|
const struct nau8821_osr_attr *osr;
|
|
|
|
osr = nau8821_get_osr(nau8821, substream->stream);
|
|
if (!osr || !osr->osr)
|
|
return -EINVAL;
|
|
|
|
return snd_pcm_hw_constraint_minmax(substream->runtime,
|
|
SNDRV_PCM_HW_PARAM_RATE,
|
|
0, CLK_DA_AD_MAX / osr->osr);
|
|
}
|
|
|
|
static int nau8821_hw_params(struct snd_pcm_substream *substream,
|
|
struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
|
|
{
|
|
struct snd_soc_component *component = dai->component;
|
|
struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component);
|
|
unsigned int val_len = 0, ctrl_val, bclk_fs, clk_div;
|
|
const struct nau8821_osr_attr *osr;
|
|
|
|
nau8821->fs = params_rate(params);
|
|
/* CLK_DAC or CLK_ADC = OSR * FS
|
|
* DAC or ADC clock frequency is defined as Over Sampling Rate (OSR)
|
|
* multiplied by the audio sample rate (Fs). Note that the OSR and Fs
|
|
* values must be selected such that the maximum frequency is less
|
|
* than 6.144 MHz.
|
|
*/
|
|
osr = nau8821_get_osr(nau8821, substream->stream);
|
|
if (!osr || !osr->osr)
|
|
return -EINVAL;
|
|
if (nau8821->fs * osr->osr > CLK_DA_AD_MAX)
|
|
return -EINVAL;
|
|
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
|
|
regmap_update_bits(nau8821->regmap, NAU8821_R03_CLK_DIVIDER,
|
|
NAU8821_CLK_DAC_SRC_MASK,
|
|
osr->clk_src << NAU8821_CLK_DAC_SRC_SFT);
|
|
else
|
|
regmap_update_bits(nau8821->regmap, NAU8821_R03_CLK_DIVIDER,
|
|
NAU8821_CLK_ADC_SRC_MASK,
|
|
osr->clk_src << NAU8821_CLK_ADC_SRC_SFT);
|
|
|
|
/* make BCLK and LRC divde configuration if the codec as master. */
|
|
regmap_read(nau8821->regmap, NAU8821_R1D_I2S_PCM_CTRL2, &ctrl_val);
|
|
if (ctrl_val & NAU8821_I2S_MS_MASTER) {
|
|
/* get the bclk and fs ratio */
|
|
bclk_fs = snd_soc_params_to_bclk(params) / nau8821->fs;
|
|
if (bclk_fs <= 32)
|
|
clk_div = 3;
|
|
else if (bclk_fs <= 64)
|
|
clk_div = 2;
|
|
else if (bclk_fs <= 128)
|
|
clk_div = 1;
|
|
else {
|
|
return -EINVAL;
|
|
}
|
|
regmap_update_bits(nau8821->regmap, NAU8821_R1D_I2S_PCM_CTRL2,
|
|
NAU8821_I2S_LRC_DIV_MASK | NAU8821_I2S_BLK_DIV_MASK,
|
|
(clk_div << NAU8821_I2S_LRC_DIV_SFT) | clk_div);
|
|
}
|
|
|
|
switch (params_width(params)) {
|
|
case 16:
|
|
val_len |= NAU8821_I2S_DL_16;
|
|
break;
|
|
case 20:
|
|
val_len |= NAU8821_I2S_DL_20;
|
|
break;
|
|
case 24:
|
|
val_len |= NAU8821_I2S_DL_24;
|
|
break;
|
|
case 32:
|
|
val_len |= NAU8821_I2S_DL_32;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
regmap_update_bits(nau8821->regmap, NAU8821_R1C_I2S_PCM_CTRL1,
|
|
NAU8821_I2S_DL_MASK, val_len);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nau8821_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
|
|
{
|
|
struct snd_soc_component *component = codec_dai->component;
|
|
struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component);
|
|
unsigned int ctrl1_val = 0, ctrl2_val = 0;
|
|
|
|
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
|
|
case SND_SOC_DAIFMT_CBP_CFP:
|
|
ctrl2_val |= NAU8821_I2S_MS_MASTER;
|
|
break;
|
|
case SND_SOC_DAIFMT_CBC_CFC:
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
|
|
case SND_SOC_DAIFMT_NB_NF:
|
|
break;
|
|
case SND_SOC_DAIFMT_IB_NF:
|
|
ctrl1_val |= NAU8821_I2S_BP_INV;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
|
|
case SND_SOC_DAIFMT_I2S:
|
|
ctrl1_val |= NAU8821_I2S_DF_I2S;
|
|
break;
|
|
case SND_SOC_DAIFMT_LEFT_J:
|
|
ctrl1_val |= NAU8821_I2S_DF_LEFT;
|
|
break;
|
|
case SND_SOC_DAIFMT_RIGHT_J:
|
|
ctrl1_val |= NAU8821_I2S_DF_RIGTH;
|
|
break;
|
|
case SND_SOC_DAIFMT_DSP_A:
|
|
ctrl1_val |= NAU8821_I2S_DF_PCM_AB;
|
|
break;
|
|
case SND_SOC_DAIFMT_DSP_B:
|
|
ctrl1_val |= NAU8821_I2S_DF_PCM_AB;
|
|
ctrl1_val |= NAU8821_I2S_PCMB_EN;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
regmap_update_bits(nau8821->regmap, NAU8821_R1C_I2S_PCM_CTRL1,
|
|
NAU8821_I2S_DL_MASK | NAU8821_I2S_DF_MASK |
|
|
NAU8821_I2S_BP_MASK | NAU8821_I2S_PCMB_MASK, ctrl1_val);
|
|
regmap_update_bits(nau8821->regmap, NAU8821_R1D_I2S_PCM_CTRL2,
|
|
NAU8821_I2S_MS_MASK, ctrl2_val);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nau8821_digital_mute(struct snd_soc_dai *dai, int mute,
|
|
int direction)
|
|
{
|
|
struct snd_soc_component *component = dai->component;
|
|
struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component);
|
|
unsigned int val = 0;
|
|
|
|
if (mute)
|
|
val = NAU8821_DAC_SOFT_MUTE;
|
|
|
|
return regmap_update_bits(nau8821->regmap,
|
|
NAU8821_R31_MUTE_CTRL, NAU8821_DAC_SOFT_MUTE, val);
|
|
}
|
|
|
|
static const struct snd_soc_dai_ops nau8821_dai_ops = {
|
|
.startup = nau8821_dai_startup,
|
|
.hw_params = nau8821_hw_params,
|
|
.set_fmt = nau8821_set_dai_fmt,
|
|
.mute_stream = nau8821_digital_mute,
|
|
.no_capture_mute = 1,
|
|
};
|
|
|
|
#define NAU8821_RATES SNDRV_PCM_RATE_8000_192000
|
|
#define NAU8821_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE \
|
|
| SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)
|
|
|
|
static struct snd_soc_dai_driver nau8821_dai = {
|
|
.name = NUVOTON_CODEC_DAI,
|
|
.playback = {
|
|
.stream_name = "Playback",
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.rates = NAU8821_RATES,
|
|
.formats = NAU8821_FORMATS,
|
|
},
|
|
.capture = {
|
|
.stream_name = "Capture",
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.rates = NAU8821_RATES,
|
|
.formats = NAU8821_FORMATS,
|
|
},
|
|
.ops = &nau8821_dai_ops,
|
|
};
|
|
|
|
|
|
static bool nau8821_is_jack_inserted(struct regmap *regmap)
|
|
{
|
|
bool active_high, is_high;
|
|
int status, jkdet;
|
|
|
|
regmap_read(regmap, NAU8821_R0D_JACK_DET_CTRL, &jkdet);
|
|
active_high = jkdet & NAU8821_JACK_POLARITY;
|
|
regmap_read(regmap, NAU8821_R82_GENERAL_STATUS, &status);
|
|
is_high = status & NAU8821_GPIO2_IN;
|
|
/* return jack connection status according to jack insertion logic
|
|
* active high or active low.
|
|
*/
|
|
return active_high == is_high;
|
|
}
|
|
|
|
static void nau8821_int_status_clear_all(struct regmap *regmap)
|
|
{
|
|
int active_irq, clear_irq, i;
|
|
|
|
/* Reset the intrruption status from rightmost bit if the corres-
|
|
* ponding irq event occurs.
|
|
*/
|
|
regmap_read(regmap, NAU8821_R10_IRQ_STATUS, &active_irq);
|
|
for (i = 0; i < NAU8821_REG_DATA_LEN; i++) {
|
|
clear_irq = (0x1 << i);
|
|
if (active_irq & clear_irq)
|
|
regmap_write(regmap,
|
|
NAU8821_R11_INT_CLR_KEY_STATUS, clear_irq);
|
|
}
|
|
}
|
|
|
|
static void nau8821_eject_jack(struct nau8821 *nau8821)
|
|
{
|
|
struct snd_soc_dapm_context *dapm = nau8821->dapm;
|
|
struct regmap *regmap = nau8821->regmap;
|
|
struct snd_soc_component *component = snd_soc_dapm_to_component(dapm);
|
|
|
|
/* Detach 2kOhm Resistors from MICBIAS to MICGND */
|
|
regmap_update_bits(regmap, NAU8821_R74_MIC_BIAS,
|
|
NAU8821_MICBIAS_JKR2, 0);
|
|
/* HPL/HPR short to ground */
|
|
regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL,
|
|
NAU8821_SPKR_DWN1R | NAU8821_SPKR_DWN1L, 0);
|
|
snd_soc_component_disable_pin(component, "MICBIAS");
|
|
snd_soc_dapm_sync(dapm);
|
|
|
|
/* Clear all interruption status */
|
|
nau8821_int_status_clear_all(regmap);
|
|
|
|
/* Enable the insertion interruption, disable the ejection inter-
|
|
* ruption, and then bypass de-bounce circuit.
|
|
*/
|
|
regmap_update_bits(regmap, NAU8821_R12_INTERRUPT_DIS_CTRL,
|
|
NAU8821_IRQ_EJECT_DIS | NAU8821_IRQ_INSERT_DIS,
|
|
NAU8821_IRQ_EJECT_DIS);
|
|
/* Mask unneeded IRQs: 1 - disable, 0 - enable */
|
|
regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK,
|
|
NAU8821_IRQ_EJECT_EN | NAU8821_IRQ_INSERT_EN,
|
|
NAU8821_IRQ_EJECT_EN);
|
|
|
|
regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL,
|
|
NAU8821_JACK_DET_DB_BYPASS, NAU8821_JACK_DET_DB_BYPASS);
|
|
|
|
/* Close clock for jack type detection at manual mode */
|
|
if (dapm->bias_level < SND_SOC_BIAS_PREPARE)
|
|
nau8821_configure_sysclk(nau8821, NAU8821_CLK_DIS, 0);
|
|
|
|
/* Recover to normal channel input */
|
|
regmap_update_bits(regmap, NAU8821_R2B_ADC_RATE,
|
|
NAU8821_ADC_R_SRC_EN, 0);
|
|
if (nau8821->key_enable) {
|
|
regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK,
|
|
NAU8821_IRQ_KEY_RELEASE_EN |
|
|
NAU8821_IRQ_KEY_PRESS_EN,
|
|
NAU8821_IRQ_KEY_RELEASE_EN |
|
|
NAU8821_IRQ_KEY_PRESS_EN);
|
|
regmap_update_bits(regmap,
|
|
NAU8821_R12_INTERRUPT_DIS_CTRL,
|
|
NAU8821_IRQ_KEY_RELEASE_DIS |
|
|
NAU8821_IRQ_KEY_PRESS_DIS,
|
|
NAU8821_IRQ_KEY_RELEASE_DIS |
|
|
NAU8821_IRQ_KEY_PRESS_DIS);
|
|
}
|
|
|
|
}
|
|
|
|
static void nau8821_jdet_work(struct work_struct *work)
|
|
{
|
|
struct nau8821 *nau8821 =
|
|
container_of(work, struct nau8821, jdet_work);
|
|
struct snd_soc_dapm_context *dapm = nau8821->dapm;
|
|
struct snd_soc_component *component = snd_soc_dapm_to_component(dapm);
|
|
struct regmap *regmap = nau8821->regmap;
|
|
int jack_status_reg, mic_detected, event = 0, event_mask = 0;
|
|
|
|
snd_soc_component_force_enable_pin(component, "MICBIAS");
|
|
snd_soc_dapm_sync(dapm);
|
|
msleep(20);
|
|
|
|
regmap_read(regmap, NAU8821_R58_I2C_DEVICE_ID, &jack_status_reg);
|
|
mic_detected = !(jack_status_reg & NAU8821_KEYDET);
|
|
if (mic_detected) {
|
|
dev_dbg(nau8821->dev, "Headset connected\n");
|
|
event |= SND_JACK_HEADSET;
|
|
|
|
/* 2kOhm Resistor from MICBIAS to MICGND1 */
|
|
regmap_update_bits(regmap, NAU8821_R74_MIC_BIAS,
|
|
NAU8821_MICBIAS_JKR2, NAU8821_MICBIAS_JKR2);
|
|
/* Latch Right Channel Analog data
|
|
* input into the Right Channel Filter
|
|
*/
|
|
regmap_update_bits(regmap, NAU8821_R2B_ADC_RATE,
|
|
NAU8821_ADC_R_SRC_EN, NAU8821_ADC_R_SRC_EN);
|
|
if (nau8821->key_enable) {
|
|
regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK,
|
|
NAU8821_IRQ_KEY_RELEASE_EN |
|
|
NAU8821_IRQ_KEY_PRESS_EN, 0);
|
|
regmap_update_bits(regmap,
|
|
NAU8821_R12_INTERRUPT_DIS_CTRL,
|
|
NAU8821_IRQ_KEY_RELEASE_DIS |
|
|
NAU8821_IRQ_KEY_PRESS_DIS, 0);
|
|
}
|
|
} else {
|
|
dev_dbg(nau8821->dev, "Headphone connected\n");
|
|
event |= SND_JACK_HEADPHONE;
|
|
snd_soc_component_disable_pin(component, "MICBIAS");
|
|
snd_soc_dapm_sync(dapm);
|
|
}
|
|
event_mask |= SND_JACK_HEADSET;
|
|
snd_soc_jack_report(nau8821->jack, event, event_mask);
|
|
}
|
|
|
|
/* Enable interruptions with internal clock. */
|
|
static void nau8821_setup_inserted_irq(struct nau8821 *nau8821)
|
|
{
|
|
struct regmap *regmap = nau8821->regmap;
|
|
|
|
/* Enable internal VCO needed for interruptions */
|
|
if (nau8821->dapm->bias_level < SND_SOC_BIAS_PREPARE)
|
|
nau8821_configure_sysclk(nau8821, NAU8821_CLK_INTERNAL, 0);
|
|
|
|
/* Chip needs one FSCLK cycle in order to generate interruptions,
|
|
* as we cannot guarantee one will be provided by the system. Turning
|
|
* master mode on then off enables us to generate that FSCLK cycle
|
|
* with a minimum of contention on the clock bus.
|
|
*/
|
|
regmap_update_bits(regmap, NAU8821_R1D_I2S_PCM_CTRL2,
|
|
NAU8821_I2S_MS_MASK, NAU8821_I2S_MS_MASTER);
|
|
regmap_update_bits(regmap, NAU8821_R1D_I2S_PCM_CTRL2,
|
|
NAU8821_I2S_MS_MASK, NAU8821_I2S_MS_SLAVE);
|
|
|
|
/* Not bypass de-bounce circuit */
|
|
regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL,
|
|
NAU8821_JACK_DET_DB_BYPASS, 0);
|
|
|
|
regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK,
|
|
NAU8821_IRQ_EJECT_EN, 0);
|
|
regmap_update_bits(regmap, NAU8821_R12_INTERRUPT_DIS_CTRL,
|
|
NAU8821_IRQ_EJECT_DIS, 0);
|
|
}
|
|
|
|
static irqreturn_t nau8821_interrupt(int irq, void *data)
|
|
{
|
|
struct nau8821 *nau8821 = (struct nau8821 *)data;
|
|
struct regmap *regmap = nau8821->regmap;
|
|
int active_irq, clear_irq = 0, event = 0, event_mask = 0;
|
|
|
|
if (regmap_read(regmap, NAU8821_R10_IRQ_STATUS, &active_irq)) {
|
|
dev_err(nau8821->dev, "failed to read irq status\n");
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
dev_dbg(nau8821->dev, "IRQ %d\n", active_irq);
|
|
|
|
if ((active_irq & NAU8821_JACK_EJECT_IRQ_MASK) ==
|
|
NAU8821_JACK_EJECT_DETECTED) {
|
|
regmap_update_bits(regmap, NAU8821_R71_ANALOG_ADC_1,
|
|
NAU8821_MICDET_MASK, NAU8821_MICDET_DIS);
|
|
nau8821_eject_jack(nau8821);
|
|
event_mask |= SND_JACK_HEADSET;
|
|
clear_irq = NAU8821_JACK_EJECT_IRQ_MASK;
|
|
} else if (active_irq & NAU8821_KEY_SHORT_PRESS_IRQ) {
|
|
event |= NAU8821_BUTTON;
|
|
event_mask |= NAU8821_BUTTON;
|
|
clear_irq = NAU8821_KEY_SHORT_PRESS_IRQ;
|
|
} else if (active_irq & NAU8821_KEY_RELEASE_IRQ) {
|
|
event_mask = NAU8821_BUTTON;
|
|
clear_irq = NAU8821_KEY_RELEASE_IRQ;
|
|
} else if ((active_irq & NAU8821_JACK_INSERT_IRQ_MASK) ==
|
|
NAU8821_JACK_INSERT_DETECTED) {
|
|
regmap_update_bits(regmap, NAU8821_R71_ANALOG_ADC_1,
|
|
NAU8821_MICDET_MASK, NAU8821_MICDET_EN);
|
|
if (nau8821_is_jack_inserted(regmap)) {
|
|
/* detect microphone and jack type */
|
|
cancel_work_sync(&nau8821->jdet_work);
|
|
schedule_work(&nau8821->jdet_work);
|
|
/* Turn off insertion interruption at manual mode */
|
|
regmap_update_bits(regmap,
|
|
NAU8821_R12_INTERRUPT_DIS_CTRL,
|
|
NAU8821_IRQ_INSERT_DIS,
|
|
NAU8821_IRQ_INSERT_DIS);
|
|
regmap_update_bits(regmap,
|
|
NAU8821_R0F_INTERRUPT_MASK,
|
|
NAU8821_IRQ_INSERT_EN,
|
|
NAU8821_IRQ_INSERT_EN);
|
|
nau8821_setup_inserted_irq(nau8821);
|
|
} else {
|
|
dev_warn(nau8821->dev,
|
|
"Inserted IRQ fired but not connected\n");
|
|
nau8821_eject_jack(nau8821);
|
|
}
|
|
}
|
|
|
|
if (!clear_irq)
|
|
clear_irq = active_irq;
|
|
/* clears the rightmost interruption */
|
|
regmap_write(regmap, NAU8821_R11_INT_CLR_KEY_STATUS, clear_irq);
|
|
|
|
if (event_mask)
|
|
snd_soc_jack_report(nau8821->jack, event, event_mask);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static const struct regmap_config nau8821_regmap_config = {
|
|
.val_bits = NAU8821_REG_DATA_LEN,
|
|
.reg_bits = NAU8821_REG_ADDR_LEN,
|
|
|
|
.max_register = NAU8821_REG_MAX,
|
|
.readable_reg = nau8821_readable_reg,
|
|
.writeable_reg = nau8821_writeable_reg,
|
|
.volatile_reg = nau8821_volatile_reg,
|
|
|
|
.cache_type = REGCACHE_RBTREE,
|
|
.reg_defaults = nau8821_reg_defaults,
|
|
.num_reg_defaults = ARRAY_SIZE(nau8821_reg_defaults),
|
|
};
|
|
|
|
static int nau8821_component_probe(struct snd_soc_component *component)
|
|
{
|
|
struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component);
|
|
struct snd_soc_dapm_context *dapm =
|
|
snd_soc_component_get_dapm(component);
|
|
|
|
nau8821->dapm = dapm;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* nau8821_calc_fll_param - Calculate FLL parameters.
|
|
* @fll_in: external clock provided to codec.
|
|
* @fs: sampling rate.
|
|
* @fll_param: Pointer to structure of FLL parameters.
|
|
*
|
|
* Calculate FLL parameters to configure codec.
|
|
*
|
|
* Returns 0 for success or negative error code.
|
|
*/
|
|
static int nau8821_calc_fll_param(unsigned int fll_in,
|
|
unsigned int fs, struct nau8821_fll *fll_param)
|
|
{
|
|
u64 fvco, fvco_max;
|
|
unsigned int fref, i, fvco_sel;
|
|
|
|
/* Ensure the reference clock frequency (FREF) is <= 13.5MHz by
|
|
* dividing freq_in by 1, 2, 4, or 8 using FLL pre-scalar.
|
|
* FREF = freq_in / NAU8821_FLL_REF_DIV_MASK
|
|
*/
|
|
for (i = 0; i < ARRAY_SIZE(fll_pre_scalar); i++) {
|
|
fref = fll_in >> fll_pre_scalar[i].param;
|
|
if (fref <= NAU_FREF_MAX)
|
|
break;
|
|
}
|
|
if (i == ARRAY_SIZE(fll_pre_scalar))
|
|
return -EINVAL;
|
|
fll_param->clk_ref_div = fll_pre_scalar[i].val;
|
|
|
|
/* Choose the FLL ratio based on FREF */
|
|
for (i = 0; i < ARRAY_SIZE(fll_ratio); i++) {
|
|
if (fref >= fll_ratio[i].param)
|
|
break;
|
|
}
|
|
if (i == ARRAY_SIZE(fll_ratio))
|
|
return -EINVAL;
|
|
fll_param->ratio = fll_ratio[i].val;
|
|
|
|
/* Calculate the frequency of DCO (FDCO) given freq_out = 256 * Fs.
|
|
* FDCO must be within the 90MHz - 100MHz or the FFL cannot be
|
|
* guaranteed across the full range of operation.
|
|
* FDCO = freq_out * 2 * mclk_src_scaling
|
|
*/
|
|
fvco_max = 0;
|
|
fvco_sel = ARRAY_SIZE(mclk_src_scaling);
|
|
for (i = 0; i < ARRAY_SIZE(mclk_src_scaling); i++) {
|
|
fvco = 256ULL * fs * 2 * mclk_src_scaling[i].param;
|
|
if (fvco > NAU_FVCO_MIN && fvco < NAU_FVCO_MAX &&
|
|
fvco_max < fvco) {
|
|
fvco_max = fvco;
|
|
fvco_sel = i;
|
|
}
|
|
}
|
|
if (ARRAY_SIZE(mclk_src_scaling) == fvco_sel)
|
|
return -EINVAL;
|
|
fll_param->mclk_src = mclk_src_scaling[fvco_sel].val;
|
|
|
|
/* Calculate the FLL 10-bit integer input and the FLL 24-bit fractional
|
|
* input based on FDCO, FREF and FLL ratio.
|
|
*/
|
|
fvco = div_u64(fvco_max << 24, fref * fll_param->ratio);
|
|
fll_param->fll_int = (fvco >> 24) & 0x3ff;
|
|
fll_param->fll_frac = fvco & 0xffffff;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void nau8821_fll_apply(struct nau8821 *nau8821,
|
|
struct nau8821_fll *fll_param)
|
|
{
|
|
struct regmap *regmap = nau8821->regmap;
|
|
|
|
regmap_update_bits(regmap, NAU8821_R03_CLK_DIVIDER,
|
|
NAU8821_CLK_SRC_MASK | NAU8821_CLK_MCLK_SRC_MASK,
|
|
NAU8821_CLK_SRC_MCLK | fll_param->mclk_src);
|
|
/* Make DSP operate at high speed for better performance. */
|
|
regmap_update_bits(regmap, NAU8821_R04_FLL1,
|
|
NAU8821_FLL_RATIO_MASK | NAU8821_ICTRL_LATCH_MASK,
|
|
fll_param->ratio | (0x6 << NAU8821_ICTRL_LATCH_SFT));
|
|
/* FLL 24-bit fractional input */
|
|
regmap_write(regmap, NAU8821_R0A_FLL7,
|
|
(fll_param->fll_frac >> 16) & 0xff);
|
|
regmap_write(regmap, NAU8821_R0B_FLL8, fll_param->fll_frac & 0xffff);
|
|
/* FLL 10-bit integer input */
|
|
regmap_update_bits(regmap, NAU8821_R06_FLL3,
|
|
NAU8821_FLL_INTEGER_MASK, fll_param->fll_int);
|
|
/* FLL pre-scaler */
|
|
regmap_update_bits(regmap, NAU8821_R07_FLL4,
|
|
NAU8821_HIGHBW_EN | NAU8821_FLL_REF_DIV_MASK,
|
|
NAU8821_HIGHBW_EN |
|
|
(fll_param->clk_ref_div << NAU8821_FLL_REF_DIV_SFT));
|
|
/* select divided VCO input */
|
|
regmap_update_bits(regmap, NAU8821_R08_FLL5,
|
|
NAU8821_FLL_CLK_SW_MASK, NAU8821_FLL_CLK_SW_REF);
|
|
/* Disable free-running mode */
|
|
regmap_update_bits(regmap,
|
|
NAU8821_R09_FLL6, NAU8821_DCO_EN, 0);
|
|
if (fll_param->fll_frac) {
|
|
/* set FLL loop filter enable and cutoff frequency at 500Khz */
|
|
regmap_update_bits(regmap, NAU8821_R08_FLL5,
|
|
NAU8821_FLL_PDB_DAC_EN | NAU8821_FLL_LOOP_FTR_EN |
|
|
NAU8821_FLL_FTR_SW_MASK,
|
|
NAU8821_FLL_PDB_DAC_EN | NAU8821_FLL_LOOP_FTR_EN |
|
|
NAU8821_FLL_FTR_SW_FILTER);
|
|
regmap_update_bits(regmap, NAU8821_R09_FLL6,
|
|
NAU8821_SDM_EN | NAU8821_CUTOFF500,
|
|
NAU8821_SDM_EN | NAU8821_CUTOFF500);
|
|
} else {
|
|
/* disable FLL loop filter and cutoff frequency */
|
|
regmap_update_bits(regmap, NAU8821_R08_FLL5,
|
|
NAU8821_FLL_PDB_DAC_EN | NAU8821_FLL_LOOP_FTR_EN |
|
|
NAU8821_FLL_FTR_SW_MASK, NAU8821_FLL_FTR_SW_ACCU);
|
|
regmap_update_bits(regmap, NAU8821_R09_FLL6,
|
|
NAU8821_SDM_EN | NAU8821_CUTOFF500, 0);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* nau8821_set_fll - FLL configuration of nau8821
|
|
* @component: codec component
|
|
* @pll_id: PLL requested
|
|
* @source: clock source
|
|
* @freq_in: frequency of input clock source
|
|
* @freq_out: must be 256*Fs in order to achieve the best performance
|
|
*
|
|
* The FLL function can select BCLK or MCLK as the input clock source.
|
|
*
|
|
* Returns 0 if the parameters have been applied successfully
|
|
* or negative error code.
|
|
*/
|
|
static int nau8821_set_fll(struct snd_soc_component *component,
|
|
int pll_id, int source, unsigned int freq_in, unsigned int freq_out)
|
|
{
|
|
struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component);
|
|
struct nau8821_fll fll_set_param, *fll_param = &fll_set_param;
|
|
int ret, fs;
|
|
|
|
fs = freq_out >> 8;
|
|
ret = nau8821_calc_fll_param(freq_in, fs, fll_param);
|
|
if (ret) {
|
|
dev_err(nau8821->dev,
|
|
"Unsupported input clock %d to output clock %d\n",
|
|
freq_in, freq_out);
|
|
return ret;
|
|
}
|
|
dev_dbg(nau8821->dev,
|
|
"mclk_src=%x ratio=%x fll_frac=%x fll_int=%x clk_ref_div=%x\n",
|
|
fll_param->mclk_src, fll_param->ratio, fll_param->fll_frac,
|
|
fll_param->fll_int, fll_param->clk_ref_div);
|
|
|
|
nau8821_fll_apply(nau8821, fll_param);
|
|
mdelay(2);
|
|
regmap_update_bits(nau8821->regmap, NAU8821_R03_CLK_DIVIDER,
|
|
NAU8821_CLK_SRC_MASK, NAU8821_CLK_SRC_VCO);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void nau8821_configure_mclk_as_sysclk(struct regmap *regmap)
|
|
{
|
|
regmap_update_bits(regmap, NAU8821_R03_CLK_DIVIDER,
|
|
NAU8821_CLK_SRC_MASK, NAU8821_CLK_SRC_MCLK);
|
|
regmap_update_bits(regmap, NAU8821_R09_FLL6,
|
|
NAU8821_DCO_EN, 0);
|
|
/* Make DSP operate as default setting for power saving. */
|
|
regmap_update_bits(regmap, NAU8821_R04_FLL1,
|
|
NAU8821_ICTRL_LATCH_MASK, 0);
|
|
}
|
|
|
|
static int nau8821_configure_sysclk(struct nau8821 *nau8821,
|
|
int clk_id, unsigned int freq)
|
|
{
|
|
struct regmap *regmap = nau8821->regmap;
|
|
|
|
switch (clk_id) {
|
|
case NAU8821_CLK_DIS:
|
|
/* Clock provided externally and disable internal VCO clock */
|
|
nau8821_configure_mclk_as_sysclk(regmap);
|
|
break;
|
|
case NAU8821_CLK_MCLK:
|
|
nau8821_configure_mclk_as_sysclk(regmap);
|
|
/* MCLK not changed by clock tree */
|
|
regmap_update_bits(regmap, NAU8821_R03_CLK_DIVIDER,
|
|
NAU8821_CLK_MCLK_SRC_MASK, 0);
|
|
break;
|
|
case NAU8821_CLK_INTERNAL:
|
|
if (nau8821_is_jack_inserted(regmap)) {
|
|
regmap_update_bits(regmap, NAU8821_R09_FLL6,
|
|
NAU8821_DCO_EN, NAU8821_DCO_EN);
|
|
regmap_update_bits(regmap, NAU8821_R03_CLK_DIVIDER,
|
|
NAU8821_CLK_SRC_MASK, NAU8821_CLK_SRC_VCO);
|
|
/* Decrease the VCO frequency and make DSP operate
|
|
* as default setting for power saving.
|
|
*/
|
|
regmap_update_bits(regmap, NAU8821_R03_CLK_DIVIDER,
|
|
NAU8821_CLK_MCLK_SRC_MASK, 0xf);
|
|
regmap_update_bits(regmap, NAU8821_R04_FLL1,
|
|
NAU8821_ICTRL_LATCH_MASK |
|
|
NAU8821_FLL_RATIO_MASK, 0x10);
|
|
regmap_update_bits(regmap, NAU8821_R09_FLL6,
|
|
NAU8821_SDM_EN, NAU8821_SDM_EN);
|
|
}
|
|
break;
|
|
case NAU8821_CLK_FLL_MCLK:
|
|
/* Higher FLL reference input frequency can only set lower
|
|
* gain error, such as 0000 for input reference from MCLK
|
|
* 12.288Mhz.
|
|
*/
|
|
regmap_update_bits(regmap, NAU8821_R06_FLL3,
|
|
NAU8821_FLL_CLK_SRC_MASK | NAU8821_GAIN_ERR_MASK,
|
|
NAU8821_FLL_CLK_SRC_MCLK | 0);
|
|
break;
|
|
case NAU8821_CLK_FLL_BLK:
|
|
/* If FLL reference input is from low frequency source,
|
|
* higher error gain can apply such as 0xf which has
|
|
* the most sensitive gain error correction threshold,
|
|
* Therefore, FLL has the most accurate DCO to
|
|
* target frequency.
|
|
*/
|
|
regmap_update_bits(regmap, NAU8821_R06_FLL3,
|
|
NAU8821_FLL_CLK_SRC_MASK | NAU8821_GAIN_ERR_MASK,
|
|
NAU8821_FLL_CLK_SRC_BLK |
|
|
(0xf << NAU8821_GAIN_ERR_SFT));
|
|
break;
|
|
case NAU8821_CLK_FLL_FS:
|
|
/* If FLL reference input is from low frequency source,
|
|
* higher error gain can apply such as 0xf which has
|
|
* the most sensitive gain error correction threshold,
|
|
* Therefore, FLL has the most accurate DCO to
|
|
* target frequency.
|
|
*/
|
|
regmap_update_bits(regmap, NAU8821_R06_FLL3,
|
|
NAU8821_FLL_CLK_SRC_MASK | NAU8821_GAIN_ERR_MASK,
|
|
NAU8821_FLL_CLK_SRC_FS |
|
|
(0xf << NAU8821_GAIN_ERR_SFT));
|
|
break;
|
|
default:
|
|
dev_err(nau8821->dev, "Invalid clock id (%d)\n", clk_id);
|
|
return -EINVAL;
|
|
}
|
|
nau8821->clk_id = clk_id;
|
|
dev_dbg(nau8821->dev, "Sysclk is %dHz and clock id is %d\n", freq,
|
|
nau8821->clk_id);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nau8821_set_sysclk(struct snd_soc_component *component, int clk_id,
|
|
int source, unsigned int freq, int dir)
|
|
{
|
|
struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component);
|
|
|
|
return nau8821_configure_sysclk(nau8821, clk_id, freq);
|
|
}
|
|
|
|
static int nau8821_resume_setup(struct nau8821 *nau8821)
|
|
{
|
|
struct regmap *regmap = nau8821->regmap;
|
|
|
|
/* Close clock when jack type detection at manual mode */
|
|
nau8821_configure_sysclk(nau8821, NAU8821_CLK_DIS, 0);
|
|
if (nau8821->irq) {
|
|
/* Clear all interruption status */
|
|
nau8821_int_status_clear_all(regmap);
|
|
|
|
/* Enable both insertion and ejection interruptions, and then
|
|
* bypass de-bounce circuit.
|
|
*/
|
|
regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK,
|
|
NAU8821_IRQ_EJECT_EN | NAU8821_IRQ_INSERT_EN, 0);
|
|
regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL,
|
|
NAU8821_JACK_DET_DB_BYPASS,
|
|
NAU8821_JACK_DET_DB_BYPASS);
|
|
regmap_update_bits(regmap, NAU8821_R12_INTERRUPT_DIS_CTRL,
|
|
NAU8821_IRQ_INSERT_DIS | NAU8821_IRQ_EJECT_DIS, 0);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nau8821_set_bias_level(struct snd_soc_component *component,
|
|
enum snd_soc_bias_level level)
|
|
{
|
|
struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component);
|
|
struct regmap *regmap = nau8821->regmap;
|
|
|
|
switch (level) {
|
|
case SND_SOC_BIAS_ON:
|
|
break;
|
|
|
|
case SND_SOC_BIAS_PREPARE:
|
|
break;
|
|
|
|
case SND_SOC_BIAS_STANDBY:
|
|
/* Setup codec configuration after resume */
|
|
if (snd_soc_component_get_bias_level(component) ==
|
|
SND_SOC_BIAS_OFF)
|
|
nau8821_resume_setup(nau8821);
|
|
break;
|
|
|
|
case SND_SOC_BIAS_OFF:
|
|
/* HPL/HPR short to ground */
|
|
regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL,
|
|
NAU8821_SPKR_DWN1R | NAU8821_SPKR_DWN1L, 0);
|
|
if (nau8821->irq) {
|
|
/* Reset the configuration of jack type for detection.
|
|
* Detach 2kOhm Resistors from MICBIAS to MICGND1/2.
|
|
*/
|
|
regmap_update_bits(regmap, NAU8821_R74_MIC_BIAS,
|
|
NAU8821_MICBIAS_JKR2, 0);
|
|
/* Turn off all interruptions before system shutdown.
|
|
* Keep theinterruption quiet before resume
|
|
* setup completes.
|
|
*/
|
|
regmap_write(regmap,
|
|
NAU8821_R12_INTERRUPT_DIS_CTRL, 0xffff);
|
|
regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK,
|
|
NAU8821_IRQ_EJECT_EN | NAU8821_IRQ_INSERT_EN,
|
|
NAU8821_IRQ_EJECT_EN | NAU8821_IRQ_INSERT_EN);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __maybe_unused nau8821_suspend(struct snd_soc_component *component)
|
|
{
|
|
struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component);
|
|
|
|
if (nau8821->irq)
|
|
disable_irq(nau8821->irq);
|
|
snd_soc_component_force_bias_level(component, SND_SOC_BIAS_OFF);
|
|
/* Power down codec power; don't support button wakeup */
|
|
snd_soc_component_disable_pin(component, "MICBIAS");
|
|
snd_soc_dapm_sync(nau8821->dapm);
|
|
regcache_cache_only(nau8821->regmap, true);
|
|
regcache_mark_dirty(nau8821->regmap);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __maybe_unused nau8821_resume(struct snd_soc_component *component)
|
|
{
|
|
struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component);
|
|
|
|
regcache_cache_only(nau8821->regmap, false);
|
|
regcache_sync(nau8821->regmap);
|
|
if (nau8821->irq)
|
|
enable_irq(nau8821->irq);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct snd_soc_component_driver nau8821_component_driver = {
|
|
.probe = nau8821_component_probe,
|
|
.set_sysclk = nau8821_set_sysclk,
|
|
.set_pll = nau8821_set_fll,
|
|
.set_bias_level = nau8821_set_bias_level,
|
|
.suspend = nau8821_suspend,
|
|
.resume = nau8821_resume,
|
|
.controls = nau8821_controls,
|
|
.num_controls = ARRAY_SIZE(nau8821_controls),
|
|
.dapm_widgets = nau8821_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(nau8821_dapm_widgets),
|
|
.dapm_routes = nau8821_dapm_routes,
|
|
.num_dapm_routes = ARRAY_SIZE(nau8821_dapm_routes),
|
|
.suspend_bias_off = 1,
|
|
.idle_bias_on = 1,
|
|
.use_pmdown_time = 1,
|
|
.endianness = 1,
|
|
};
|
|
|
|
/**
|
|
* nau8821_enable_jack_detect - Specify a jack for event reporting
|
|
*
|
|
* @component: component to register the jack with
|
|
* @jack: jack to use to report headset and button events on
|
|
*
|
|
* After this function has been called the headset insert/remove and button
|
|
* events will be routed to the given jack. Jack can be null to stop
|
|
* reporting.
|
|
*/
|
|
int nau8821_enable_jack_detect(struct snd_soc_component *component,
|
|
struct snd_soc_jack *jack)
|
|
{
|
|
struct nau8821 *nau8821 = snd_soc_component_get_drvdata(component);
|
|
int ret;
|
|
|
|
nau8821->jack = jack;
|
|
/* Initiate jack detection work queue */
|
|
INIT_WORK(&nau8821->jdet_work, nau8821_jdet_work);
|
|
ret = devm_request_threaded_irq(nau8821->dev, nau8821->irq, NULL,
|
|
nau8821_interrupt, IRQF_TRIGGER_LOW | IRQF_ONESHOT,
|
|
"nau8821", nau8821);
|
|
if (ret) {
|
|
dev_err(nau8821->dev, "Cannot request irq %d (%d)\n",
|
|
nau8821->irq, ret);
|
|
return ret;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(nau8821_enable_jack_detect);
|
|
|
|
static void nau8821_reset_chip(struct regmap *regmap)
|
|
{
|
|
regmap_write(regmap, NAU8821_R00_RESET, 0xffff);
|
|
regmap_write(regmap, NAU8821_R00_RESET, 0xffff);
|
|
}
|
|
|
|
static void nau8821_print_device_properties(struct nau8821 *nau8821)
|
|
{
|
|
struct device *dev = nau8821->dev;
|
|
|
|
dev_dbg(dev, "jkdet-enable: %d\n", nau8821->jkdet_enable);
|
|
dev_dbg(dev, "jkdet-pull-enable: %d\n", nau8821->jkdet_pull_enable);
|
|
dev_dbg(dev, "jkdet-pull-up: %d\n", nau8821->jkdet_pull_up);
|
|
dev_dbg(dev, "jkdet-polarity: %d\n", nau8821->jkdet_polarity);
|
|
dev_dbg(dev, "micbias-voltage: %d\n", nau8821->micbias_voltage);
|
|
dev_dbg(dev, "vref-impedance: %d\n", nau8821->vref_impedance);
|
|
dev_dbg(dev, "jack-insert-debounce: %d\n",
|
|
nau8821->jack_insert_debounce);
|
|
dev_dbg(dev, "jack-eject-debounce: %d\n",
|
|
nau8821->jack_eject_debounce);
|
|
dev_dbg(dev, "dmic-clk-threshold: %d\n",
|
|
nau8821->dmic_clk_threshold);
|
|
dev_dbg(dev, "key_enable: %d\n", nau8821->key_enable);
|
|
}
|
|
|
|
static int nau8821_read_device_properties(struct device *dev,
|
|
struct nau8821 *nau8821)
|
|
{
|
|
int ret;
|
|
|
|
nau8821->jkdet_enable = device_property_read_bool(dev,
|
|
"nuvoton,jkdet-enable");
|
|
nau8821->jkdet_pull_enable = device_property_read_bool(dev,
|
|
"nuvoton,jkdet-pull-enable");
|
|
nau8821->jkdet_pull_up = device_property_read_bool(dev,
|
|
"nuvoton,jkdet-pull-up");
|
|
nau8821->key_enable = device_property_read_bool(dev,
|
|
"nuvoton,key-enable");
|
|
ret = device_property_read_u32(dev, "nuvoton,jkdet-polarity",
|
|
&nau8821->jkdet_polarity);
|
|
if (ret)
|
|
nau8821->jkdet_polarity = 1;
|
|
ret = device_property_read_u32(dev, "nuvoton,micbias-voltage",
|
|
&nau8821->micbias_voltage);
|
|
if (ret)
|
|
nau8821->micbias_voltage = 6;
|
|
ret = device_property_read_u32(dev, "nuvoton,vref-impedance",
|
|
&nau8821->vref_impedance);
|
|
if (ret)
|
|
nau8821->vref_impedance = 2;
|
|
ret = device_property_read_u32(dev, "nuvoton,jack-insert-debounce",
|
|
&nau8821->jack_insert_debounce);
|
|
if (ret)
|
|
nau8821->jack_insert_debounce = 7;
|
|
ret = device_property_read_u32(dev, "nuvoton,jack-eject-debounce",
|
|
&nau8821->jack_eject_debounce);
|
|
if (ret)
|
|
nau8821->jack_eject_debounce = 0;
|
|
ret = device_property_read_u32(dev, "nuvoton,dmic-clk-threshold",
|
|
&nau8821->dmic_clk_threshold);
|
|
if (ret)
|
|
nau8821->dmic_clk_threshold = 3072000;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void nau8821_init_regs(struct nau8821 *nau8821)
|
|
{
|
|
struct regmap *regmap = nau8821->regmap;
|
|
|
|
/* Enable Bias/Vmid */
|
|
regmap_update_bits(regmap, NAU8821_R66_BIAS_ADJ,
|
|
NAU8821_BIAS_VMID, NAU8821_BIAS_VMID);
|
|
regmap_update_bits(regmap, NAU8821_R76_BOOST,
|
|
NAU8821_GLOBAL_BIAS_EN, NAU8821_GLOBAL_BIAS_EN);
|
|
/* VMID Tieoff setting and enable TESTDAC.
|
|
* This sets the analog DAC inputs to a '0' input signal to avoid
|
|
* any glitches due to power up transients in both the analog and
|
|
* digital DAC circuit.
|
|
*/
|
|
regmap_update_bits(regmap, NAU8821_R66_BIAS_ADJ,
|
|
NAU8821_BIAS_VMID_SEL_MASK | NAU8821_BIAS_TESTDAC_EN,
|
|
(nau8821->vref_impedance << NAU8821_BIAS_VMID_SEL_SFT) |
|
|
NAU8821_BIAS_TESTDAC_EN);
|
|
/* Disable short Frame Sync detection logic */
|
|
regmap_update_bits(regmap, NAU8821_R1E_LEFT_TIME_SLOT,
|
|
NAU8821_DIS_FS_SHORT_DET, NAU8821_DIS_FS_SHORT_DET);
|
|
/* Disable Boost Driver, Automatic Short circuit protection enable */
|
|
regmap_update_bits(regmap, NAU8821_R76_BOOST,
|
|
NAU8821_PRECHARGE_DIS | NAU8821_HP_BOOST_DIS |
|
|
NAU8821_HP_BOOST_G_DIS | NAU8821_SHORT_SHUTDOWN_EN,
|
|
NAU8821_PRECHARGE_DIS | NAU8821_HP_BOOST_DIS |
|
|
NAU8821_HP_BOOST_G_DIS | NAU8821_SHORT_SHUTDOWN_EN);
|
|
/* Class G timer 64ms */
|
|
regmap_update_bits(regmap, NAU8821_R4B_CLASSG_CTRL,
|
|
NAU8821_CLASSG_TIMER_MASK,
|
|
0x20 << NAU8821_CLASSG_TIMER_SFT);
|
|
/* Class AB bias current to 2x, DAC Capacitor enable MSB/LSB */
|
|
regmap_update_bits(regmap, NAU8821_R6A_ANALOG_CONTROL_2,
|
|
NAU8821_HP_NON_CLASSG_CURRENT_2xADJ |
|
|
NAU8821_DAC_CAPACITOR_MSB | NAU8821_DAC_CAPACITOR_LSB,
|
|
NAU8821_HP_NON_CLASSG_CURRENT_2xADJ |
|
|
NAU8821_DAC_CAPACITOR_MSB | NAU8821_DAC_CAPACITOR_LSB);
|
|
/* Disable DACR/L power */
|
|
regmap_update_bits(regmap, NAU8821_R80_CHARGE_PUMP,
|
|
NAU8821_POWER_DOWN_DACR | NAU8821_POWER_DOWN_DACL, 0);
|
|
/* DAC clock delay 2ns, VREF */
|
|
regmap_update_bits(regmap, NAU8821_R73_RDAC,
|
|
NAU8821_DAC_CLK_DELAY_MASK | NAU8821_DAC_VREF_MASK,
|
|
(0x2 << NAU8821_DAC_CLK_DELAY_SFT) |
|
|
(0x3 << NAU8821_DAC_VREF_SFT));
|
|
|
|
regmap_update_bits(regmap, NAU8821_R74_MIC_BIAS,
|
|
NAU8821_MICBIAS_VOLTAGE_MASK, nau8821->micbias_voltage);
|
|
/* Default oversampling/decimations settings are unusable
|
|
* (audible hiss). Set it to something better.
|
|
*/
|
|
regmap_update_bits(regmap, NAU8821_R2B_ADC_RATE,
|
|
NAU8821_ADC_SYNC_DOWN_MASK, NAU8821_ADC_SYNC_DOWN_64);
|
|
regmap_update_bits(regmap, NAU8821_R2C_DAC_CTRL1,
|
|
NAU8821_DAC_OVERSAMPLE_MASK, NAU8821_DAC_OVERSAMPLE_64);
|
|
}
|
|
|
|
static int nau8821_setup_irq(struct nau8821 *nau8821)
|
|
{
|
|
struct regmap *regmap = nau8821->regmap;
|
|
|
|
/* Jack detection */
|
|
regmap_update_bits(regmap, NAU8821_R1A_GPIO12_CTRL,
|
|
NAU8821_JKDET_OUTPUT_EN,
|
|
nau8821->jkdet_enable ? 0 : NAU8821_JKDET_OUTPUT_EN);
|
|
regmap_update_bits(regmap, NAU8821_R1A_GPIO12_CTRL,
|
|
NAU8821_JKDET_PULL_EN,
|
|
nau8821->jkdet_pull_enable ? 0 : NAU8821_JKDET_PULL_EN);
|
|
regmap_update_bits(regmap, NAU8821_R1A_GPIO12_CTRL,
|
|
NAU8821_JKDET_PULL_UP,
|
|
nau8821->jkdet_pull_up ? NAU8821_JKDET_PULL_UP : 0);
|
|
regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL,
|
|
NAU8821_JACK_POLARITY,
|
|
/* jkdet_polarity - 1 is for active-low */
|
|
nau8821->jkdet_polarity ? 0 : NAU8821_JACK_POLARITY);
|
|
regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL,
|
|
NAU8821_JACK_INSERT_DEBOUNCE_MASK,
|
|
nau8821->jack_insert_debounce <<
|
|
NAU8821_JACK_INSERT_DEBOUNCE_SFT);
|
|
regmap_update_bits(regmap, NAU8821_R0D_JACK_DET_CTRL,
|
|
NAU8821_JACK_EJECT_DEBOUNCE_MASK,
|
|
nau8821->jack_eject_debounce <<
|
|
NAU8821_JACK_EJECT_DEBOUNCE_SFT);
|
|
/* Pull up IRQ pin */
|
|
regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK,
|
|
NAU8821_IRQ_PIN_PULL_UP | NAU8821_IRQ_PIN_PULL_EN |
|
|
NAU8821_IRQ_OUTPUT_EN, NAU8821_IRQ_PIN_PULL_UP |
|
|
NAU8821_IRQ_PIN_PULL_EN | NAU8821_IRQ_OUTPUT_EN);
|
|
/* Disable interruption before codec initiation done */
|
|
/* Mask unneeded IRQs: 1 - disable, 0 - enable */
|
|
regmap_update_bits(regmap, NAU8821_R0F_INTERRUPT_MASK, 0x3f5, 0x3f5);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nau8821_i2c_probe(struct i2c_client *i2c)
|
|
{
|
|
struct device *dev = &i2c->dev;
|
|
struct nau8821 *nau8821 = dev_get_platdata(&i2c->dev);
|
|
int ret, value;
|
|
|
|
if (!nau8821) {
|
|
nau8821 = devm_kzalloc(dev, sizeof(*nau8821), GFP_KERNEL);
|
|
if (!nau8821)
|
|
return -ENOMEM;
|
|
nau8821_read_device_properties(dev, nau8821);
|
|
}
|
|
i2c_set_clientdata(i2c, nau8821);
|
|
|
|
nau8821->regmap = devm_regmap_init_i2c(i2c, &nau8821_regmap_config);
|
|
if (IS_ERR(nau8821->regmap))
|
|
return PTR_ERR(nau8821->regmap);
|
|
|
|
nau8821->dev = dev;
|
|
nau8821->irq = i2c->irq;
|
|
nau8821_print_device_properties(nau8821);
|
|
|
|
nau8821_reset_chip(nau8821->regmap);
|
|
ret = regmap_read(nau8821->regmap, NAU8821_R58_I2C_DEVICE_ID, &value);
|
|
if (ret) {
|
|
dev_err(dev, "Failed to read device id (%d)\n", ret);
|
|
return ret;
|
|
}
|
|
nau8821_init_regs(nau8821);
|
|
|
|
if (i2c->irq)
|
|
nau8821_setup_irq(nau8821);
|
|
|
|
ret = devm_snd_soc_register_component(&i2c->dev,
|
|
&nau8821_component_driver, &nau8821_dai, 1);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const struct i2c_device_id nau8821_i2c_ids[] = {
|
|
{ "nau8821", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, nau8821_i2c_ids);
|
|
|
|
#ifdef CONFIG_OF
|
|
static const struct of_device_id nau8821_of_ids[] = {
|
|
{ .compatible = "nuvoton,nau8821", },
|
|
{}
|
|
};
|
|
MODULE_DEVICE_TABLE(of, nau8821_of_ids);
|
|
#endif
|
|
|
|
#ifdef CONFIG_ACPI
|
|
static const struct acpi_device_id nau8821_acpi_match[] = {
|
|
{ "NVTN2020", 0 },
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(acpi, nau8821_acpi_match);
|
|
#endif
|
|
|
|
static struct i2c_driver nau8821_driver = {
|
|
.driver = {
|
|
.name = "nau8821",
|
|
.of_match_table = of_match_ptr(nau8821_of_ids),
|
|
.acpi_match_table = ACPI_PTR(nau8821_acpi_match),
|
|
},
|
|
.probe_new = nau8821_i2c_probe,
|
|
.id_table = nau8821_i2c_ids,
|
|
};
|
|
module_i2c_driver(nau8821_driver);
|
|
|
|
MODULE_DESCRIPTION("ASoC nau8821 driver");
|
|
MODULE_AUTHOR("John Hsu <kchsu0@nuvoton.com>");
|
|
MODULE_AUTHOR("Seven Lee <wtli@nuvoton.com>");
|
|
MODULE_LICENSE("GPL");
|