891 lines
27 KiB
C
891 lines
27 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* nau8810.c -- NAU8810 ALSA Soc Audio driver
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*
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* Copyright 2016 Nuvoton Technology Corp.
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*
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* Author: David Lin <ctlin0@nuvoton.com>
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*
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* Based on WM8974.c
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/pm.h>
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#include <linux/i2c.h>
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#include <linux/regmap.h>
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#include <linux/slab.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/initval.h>
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#include <sound/tlv.h>
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#include "nau8810.h"
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#define NAU_PLL_FREQ_MAX 100000000
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#define NAU_PLL_FREQ_MIN 90000000
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#define NAU_PLL_REF_MAX 33000000
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#define NAU_PLL_REF_MIN 8000000
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#define NAU_PLL_OPTOP_MIN 6
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static const int nau8810_mclk_scaler[] = { 10, 15, 20, 30, 40, 60, 80, 120 };
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static const struct reg_default nau8810_reg_defaults[] = {
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{ NAU8810_REG_POWER1, 0x0000 },
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{ NAU8810_REG_POWER2, 0x0000 },
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{ NAU8810_REG_POWER3, 0x0000 },
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{ NAU8810_REG_IFACE, 0x0050 },
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{ NAU8810_REG_COMP, 0x0000 },
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{ NAU8810_REG_CLOCK, 0x0140 },
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{ NAU8810_REG_SMPLR, 0x0000 },
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{ NAU8810_REG_DAC, 0x0000 },
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{ NAU8810_REG_DACGAIN, 0x00FF },
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{ NAU8810_REG_ADC, 0x0100 },
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{ NAU8810_REG_ADCGAIN, 0x00FF },
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{ NAU8810_REG_EQ1, 0x012C },
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{ NAU8810_REG_EQ2, 0x002C },
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{ NAU8810_REG_EQ3, 0x002C },
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{ NAU8810_REG_EQ4, 0x002C },
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{ NAU8810_REG_EQ5, 0x002C },
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{ NAU8810_REG_DACLIM1, 0x0032 },
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{ NAU8810_REG_DACLIM2, 0x0000 },
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{ NAU8810_REG_NOTCH1, 0x0000 },
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{ NAU8810_REG_NOTCH2, 0x0000 },
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{ NAU8810_REG_NOTCH3, 0x0000 },
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{ NAU8810_REG_NOTCH4, 0x0000 },
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{ NAU8810_REG_ALC1, 0x0038 },
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{ NAU8810_REG_ALC2, 0x000B },
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{ NAU8810_REG_ALC3, 0x0032 },
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{ NAU8810_REG_NOISEGATE, 0x0000 },
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{ NAU8810_REG_PLLN, 0x0008 },
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{ NAU8810_REG_PLLK1, 0x000C },
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{ NAU8810_REG_PLLK2, 0x0093 },
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{ NAU8810_REG_PLLK3, 0x00E9 },
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{ NAU8810_REG_ATTEN, 0x0000 },
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{ NAU8810_REG_INPUT_SIGNAL, 0x0003 },
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{ NAU8810_REG_PGAGAIN, 0x0010 },
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{ NAU8810_REG_ADCBOOST, 0x0100 },
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{ NAU8810_REG_OUTPUT, 0x0002 },
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{ NAU8810_REG_SPKMIX, 0x0001 },
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{ NAU8810_REG_SPKGAIN, 0x0039 },
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{ NAU8810_REG_MONOMIX, 0x0001 },
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{ NAU8810_REG_POWER4, 0x0000 },
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{ NAU8810_REG_TSLOTCTL1, 0x0000 },
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{ NAU8810_REG_TSLOTCTL2, 0x0020 },
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{ NAU8810_REG_DEVICE_REVID, 0x0000 },
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{ NAU8810_REG_I2C_DEVICEID, 0x001A },
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{ NAU8810_REG_ADDITIONID, 0x00CA },
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{ NAU8810_REG_RESERVE, 0x0124 },
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{ NAU8810_REG_OUTCTL, 0x0001 },
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{ NAU8810_REG_ALC1ENHAN1, 0x0010 },
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{ NAU8810_REG_ALC1ENHAN2, 0x0000 },
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{ NAU8810_REG_MISCCTL, 0x0000 },
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{ NAU8810_REG_OUTTIEOFF, 0x0000 },
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{ NAU8810_REG_AGCP2POUT, 0x0000 },
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{ NAU8810_REG_AGCPOUT, 0x0000 },
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{ NAU8810_REG_AMTCTL, 0x0000 },
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{ NAU8810_REG_OUTTIEOFFMAN, 0x0000 },
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};
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static bool nau8810_readable_reg(struct device *dev, unsigned int reg)
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{
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switch (reg) {
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case NAU8810_REG_RESET ... NAU8810_REG_SMPLR:
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case NAU8810_REG_DAC ... NAU8810_REG_DACGAIN:
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case NAU8810_REG_ADC ... NAU8810_REG_ADCGAIN:
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case NAU8810_REG_EQ1 ... NAU8810_REG_EQ5:
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case NAU8810_REG_DACLIM1 ... NAU8810_REG_DACLIM2:
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case NAU8810_REG_NOTCH1 ... NAU8810_REG_NOTCH4:
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case NAU8810_REG_ALC1 ... NAU8810_REG_ATTEN:
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case NAU8810_REG_INPUT_SIGNAL ... NAU8810_REG_PGAGAIN:
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case NAU8810_REG_ADCBOOST:
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case NAU8810_REG_OUTPUT ... NAU8810_REG_SPKMIX:
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case NAU8810_REG_SPKGAIN:
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case NAU8810_REG_MONOMIX:
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case NAU8810_REG_POWER4 ... NAU8810_REG_TSLOTCTL2:
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case NAU8810_REG_DEVICE_REVID ... NAU8810_REG_RESERVE:
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case NAU8810_REG_OUTCTL ... NAU8810_REG_ALC1ENHAN2:
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case NAU8810_REG_MISCCTL:
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case NAU8810_REG_OUTTIEOFF ... NAU8810_REG_OUTTIEOFFMAN:
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return true;
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default:
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return false;
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}
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}
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static bool nau8810_writeable_reg(struct device *dev, unsigned int reg)
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{
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switch (reg) {
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case NAU8810_REG_RESET ... NAU8810_REG_SMPLR:
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case NAU8810_REG_DAC ... NAU8810_REG_DACGAIN:
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case NAU8810_REG_ADC ... NAU8810_REG_ADCGAIN:
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case NAU8810_REG_EQ1 ... NAU8810_REG_EQ5:
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case NAU8810_REG_DACLIM1 ... NAU8810_REG_DACLIM2:
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case NAU8810_REG_NOTCH1 ... NAU8810_REG_NOTCH4:
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case NAU8810_REG_ALC1 ... NAU8810_REG_ATTEN:
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case NAU8810_REG_INPUT_SIGNAL ... NAU8810_REG_PGAGAIN:
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case NAU8810_REG_ADCBOOST:
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case NAU8810_REG_OUTPUT ... NAU8810_REG_SPKMIX:
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case NAU8810_REG_SPKGAIN:
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case NAU8810_REG_MONOMIX:
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case NAU8810_REG_POWER4 ... NAU8810_REG_TSLOTCTL2:
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case NAU8810_REG_OUTCTL ... NAU8810_REG_ALC1ENHAN2:
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case NAU8810_REG_MISCCTL:
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case NAU8810_REG_OUTTIEOFF ... NAU8810_REG_OUTTIEOFFMAN:
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return true;
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default:
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return false;
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}
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}
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static bool nau8810_volatile_reg(struct device *dev, unsigned int reg)
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{
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switch (reg) {
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case NAU8810_REG_RESET:
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case NAU8810_REG_DEVICE_REVID ... NAU8810_REG_RESERVE:
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return true;
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default:
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return false;
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}
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}
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/* The EQ parameters get function is to get the 5 band equalizer control.
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* The regmap raw read can't work here because regmap doesn't provide
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* value format for value width of 9 bits. Therefore, the driver reads data
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* from cache and makes value format according to the endianness of
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* bytes type control element.
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*/
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static int nau8810_eq_get(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
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struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component);
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struct soc_bytes_ext *params = (void *)kcontrol->private_value;
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int i, reg, reg_val;
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u16 *val;
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val = (u16 *)ucontrol->value.bytes.data;
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reg = NAU8810_REG_EQ1;
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for (i = 0; i < params->max / sizeof(u16); i++) {
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regmap_read(nau8810->regmap, reg + i, ®_val);
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/* conversion of 16-bit integers between native CPU format
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* and big endian format
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*/
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reg_val = cpu_to_be16(reg_val);
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memcpy(val + i, ®_val, sizeof(reg_val));
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}
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return 0;
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}
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/* The EQ parameters put function is to make configuration of 5 band equalizer
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* control. These configuration includes central frequency, equalizer gain,
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* cut-off frequency, bandwidth control, and equalizer path.
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* The regmap raw write can't work here because regmap doesn't provide
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* register and value format for register with address 7 bits and value 9 bits.
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* Therefore, the driver makes value format according to the endianness of
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* bytes type control element and writes data to codec.
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*/
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static int nau8810_eq_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
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struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component);
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struct soc_bytes_ext *params = (void *)kcontrol->private_value;
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void *data;
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u16 *val, value;
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int i, reg, ret;
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data = kmemdup(ucontrol->value.bytes.data,
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params->max, GFP_KERNEL | GFP_DMA);
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if (!data)
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return -ENOMEM;
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val = (u16 *)data;
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reg = NAU8810_REG_EQ1;
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for (i = 0; i < params->max / sizeof(u16); i++) {
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/* conversion of 16-bit integers between native CPU format
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* and big endian format
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*/
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value = be16_to_cpu(*(val + i));
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ret = regmap_write(nau8810->regmap, reg + i, value);
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if (ret) {
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dev_err(component->dev, "EQ configuration fail, register: %x ret: %d\n",
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reg + i, ret);
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kfree(data);
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return ret;
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}
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}
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kfree(data);
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return 0;
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}
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static const char * const nau8810_companding[] = {
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"Off", "NC", "u-law", "A-law" };
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static const struct soc_enum nau8810_companding_adc_enum =
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SOC_ENUM_SINGLE(NAU8810_REG_COMP, NAU8810_ADCCM_SFT,
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ARRAY_SIZE(nau8810_companding), nau8810_companding);
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static const struct soc_enum nau8810_companding_dac_enum =
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SOC_ENUM_SINGLE(NAU8810_REG_COMP, NAU8810_DACCM_SFT,
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ARRAY_SIZE(nau8810_companding), nau8810_companding);
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static const char * const nau8810_deemp[] = {
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"None", "32kHz", "44.1kHz", "48kHz" };
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static const struct soc_enum nau8810_deemp_enum =
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SOC_ENUM_SINGLE(NAU8810_REG_DAC, NAU8810_DEEMP_SFT,
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ARRAY_SIZE(nau8810_deemp), nau8810_deemp);
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static const char * const nau8810_eqmode[] = {"Capture", "Playback" };
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static const struct soc_enum nau8810_eqmode_enum =
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SOC_ENUM_SINGLE(NAU8810_REG_EQ1, NAU8810_EQM_SFT,
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ARRAY_SIZE(nau8810_eqmode), nau8810_eqmode);
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static const char * const nau8810_alc[] = {"Normal", "Limiter" };
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static const struct soc_enum nau8810_alc_enum =
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SOC_ENUM_SINGLE(NAU8810_REG_ALC3, NAU8810_ALCM_SFT,
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ARRAY_SIZE(nau8810_alc), nau8810_alc);
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static const DECLARE_TLV_DB_SCALE(digital_tlv, -12750, 50, 1);
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static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
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static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1200, 75, 0);
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static const DECLARE_TLV_DB_SCALE(spk_tlv, -5700, 100, 0);
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static const struct snd_kcontrol_new nau8810_snd_controls[] = {
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SOC_ENUM("ADC Companding", nau8810_companding_adc_enum),
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SOC_ENUM("DAC Companding", nau8810_companding_dac_enum),
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SOC_ENUM("DAC De-emphasis", nau8810_deemp_enum),
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SOC_ENUM("EQ Function", nau8810_eqmode_enum),
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SND_SOC_BYTES_EXT("EQ Parameters", 10,
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nau8810_eq_get, nau8810_eq_put),
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SOC_SINGLE("DAC Inversion Switch", NAU8810_REG_DAC,
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NAU8810_DACPL_SFT, 1, 0),
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SOC_SINGLE_TLV("Playback Volume", NAU8810_REG_DACGAIN,
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NAU8810_DACGAIN_SFT, 0xff, 0, digital_tlv),
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SOC_SINGLE("High Pass Filter Switch", NAU8810_REG_ADC,
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NAU8810_HPFEN_SFT, 1, 0),
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SOC_SINGLE("High Pass Cut Off", NAU8810_REG_ADC,
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NAU8810_HPF_SFT, 0x7, 0),
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SOC_SINGLE("ADC Inversion Switch", NAU8810_REG_ADC,
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NAU8810_ADCPL_SFT, 1, 0),
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SOC_SINGLE_TLV("Capture Volume", NAU8810_REG_ADCGAIN,
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NAU8810_ADCGAIN_SFT, 0xff, 0, digital_tlv),
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SOC_SINGLE_TLV("EQ1 Volume", NAU8810_REG_EQ1,
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NAU8810_EQ1GC_SFT, 0x18, 1, eq_tlv),
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SOC_SINGLE_TLV("EQ2 Volume", NAU8810_REG_EQ2,
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NAU8810_EQ2GC_SFT, 0x18, 1, eq_tlv),
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SOC_SINGLE_TLV("EQ3 Volume", NAU8810_REG_EQ3,
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NAU8810_EQ3GC_SFT, 0x18, 1, eq_tlv),
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SOC_SINGLE_TLV("EQ4 Volume", NAU8810_REG_EQ4,
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NAU8810_EQ4GC_SFT, 0x18, 1, eq_tlv),
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SOC_SINGLE_TLV("EQ5 Volume", NAU8810_REG_EQ5,
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NAU8810_EQ5GC_SFT, 0x18, 1, eq_tlv),
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SOC_SINGLE("DAC Limiter Switch", NAU8810_REG_DACLIM1,
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NAU8810_DACLIMEN_SFT, 1, 0),
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SOC_SINGLE("DAC Limiter Decay", NAU8810_REG_DACLIM1,
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NAU8810_DACLIMDCY_SFT, 0xf, 0),
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SOC_SINGLE("DAC Limiter Attack", NAU8810_REG_DACLIM1,
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NAU8810_DACLIMATK_SFT, 0xf, 0),
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SOC_SINGLE("DAC Limiter Threshold", NAU8810_REG_DACLIM2,
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NAU8810_DACLIMTHL_SFT, 0x7, 0),
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SOC_SINGLE("DAC Limiter Boost", NAU8810_REG_DACLIM2,
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NAU8810_DACLIMBST_SFT, 0xf, 0),
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SOC_ENUM("ALC Mode", nau8810_alc_enum),
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SOC_SINGLE("ALC Enable Switch", NAU8810_REG_ALC1,
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NAU8810_ALCEN_SFT, 1, 0),
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SOC_SINGLE("ALC Max Volume", NAU8810_REG_ALC1,
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NAU8810_ALCMXGAIN_SFT, 0x7, 0),
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SOC_SINGLE("ALC Min Volume", NAU8810_REG_ALC1,
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NAU8810_ALCMINGAIN_SFT, 0x7, 0),
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SOC_SINGLE("ALC ZC Switch", NAU8810_REG_ALC2,
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NAU8810_ALCZC_SFT, 1, 0),
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SOC_SINGLE("ALC Hold", NAU8810_REG_ALC2,
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NAU8810_ALCHT_SFT, 0xf, 0),
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SOC_SINGLE("ALC Target", NAU8810_REG_ALC2,
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NAU8810_ALCSL_SFT, 0xf, 0),
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SOC_SINGLE("ALC Decay", NAU8810_REG_ALC3,
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NAU8810_ALCDCY_SFT, 0xf, 0),
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SOC_SINGLE("ALC Attack", NAU8810_REG_ALC3,
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NAU8810_ALCATK_SFT, 0xf, 0),
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SOC_SINGLE("ALC Noise Gate Switch", NAU8810_REG_NOISEGATE,
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NAU8810_ALCNEN_SFT, 1, 0),
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SOC_SINGLE("ALC Noise Gate Threshold", NAU8810_REG_NOISEGATE,
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NAU8810_ALCNTH_SFT, 0x7, 0),
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SOC_SINGLE("PGA ZC Switch", NAU8810_REG_PGAGAIN,
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NAU8810_PGAZC_SFT, 1, 0),
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SOC_SINGLE_TLV("PGA Volume", NAU8810_REG_PGAGAIN,
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NAU8810_PGAGAIN_SFT, 0x3f, 0, inpga_tlv),
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SOC_SINGLE("Speaker ZC Switch", NAU8810_REG_SPKGAIN,
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NAU8810_SPKZC_SFT, 1, 0),
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SOC_SINGLE("Speaker Mute Switch", NAU8810_REG_SPKGAIN,
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NAU8810_SPKMT_SFT, 1, 0),
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SOC_SINGLE_TLV("Speaker Volume", NAU8810_REG_SPKGAIN,
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NAU8810_SPKGAIN_SFT, 0x3f, 0, spk_tlv),
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SOC_SINGLE("Capture Boost(+20dB)", NAU8810_REG_ADCBOOST,
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NAU8810_PGABST_SFT, 1, 0),
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SOC_SINGLE("Mono Mute Switch", NAU8810_REG_MONOMIX,
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NAU8810_MOUTMXMT_SFT, 1, 0),
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SOC_SINGLE("DAC Oversampling Rate(128x) Switch", NAU8810_REG_DAC,
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NAU8810_DACOS_SFT, 1, 0),
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SOC_SINGLE("ADC Oversampling Rate(128x) Switch", NAU8810_REG_ADC,
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NAU8810_ADCOS_SFT, 1, 0),
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};
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/* Speaker Output Mixer */
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static const struct snd_kcontrol_new nau8810_speaker_mixer_controls[] = {
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SOC_DAPM_SINGLE("Line Bypass Switch", NAU8810_REG_SPKMIX,
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NAU8810_BYPSPK_SFT, 1, 0),
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SOC_DAPM_SINGLE("PCM Playback Switch", NAU8810_REG_SPKMIX,
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NAU8810_DACSPK_SFT, 1, 0),
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};
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/* Mono Output Mixer */
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static const struct snd_kcontrol_new nau8810_mono_mixer_controls[] = {
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SOC_DAPM_SINGLE("Line Bypass Switch", NAU8810_REG_MONOMIX,
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NAU8810_BYPMOUT_SFT, 1, 0),
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SOC_DAPM_SINGLE("PCM Playback Switch", NAU8810_REG_MONOMIX,
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NAU8810_DACMOUT_SFT, 1, 0),
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};
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/* PGA Mute */
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static const struct snd_kcontrol_new nau8810_pgaboost_mixer_controls[] = {
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SOC_DAPM_SINGLE("PGA Mute Switch", NAU8810_REG_PGAGAIN,
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NAU8810_PGAMT_SFT, 1, 1),
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SOC_DAPM_SINGLE("PMIC PGA Switch", NAU8810_REG_ADCBOOST,
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NAU8810_PMICBSTGAIN_SFT, 0x7, 0),
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};
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/* Input PGA */
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static const struct snd_kcontrol_new nau8810_inpga[] = {
|
|
SOC_DAPM_SINGLE("MicN Switch", NAU8810_REG_INPUT_SIGNAL,
|
|
NAU8810_NMICPGA_SFT, 1, 0),
|
|
SOC_DAPM_SINGLE("MicP Switch", NAU8810_REG_INPUT_SIGNAL,
|
|
NAU8810_PMICPGA_SFT, 1, 0),
|
|
};
|
|
|
|
/* Loopback Switch */
|
|
static const struct snd_kcontrol_new nau8810_loopback =
|
|
SOC_DAPM_SINGLE("Switch", NAU8810_REG_COMP,
|
|
NAU8810_ADDAP_SFT, 1, 0);
|
|
|
|
static int check_mclk_select_pll(struct snd_soc_dapm_widget *source,
|
|
struct snd_soc_dapm_widget *sink)
|
|
{
|
|
struct snd_soc_component *component = snd_soc_dapm_to_component(source->dapm);
|
|
struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component);
|
|
unsigned int value;
|
|
|
|
regmap_read(nau8810->regmap, NAU8810_REG_CLOCK, &value);
|
|
return (value & NAU8810_CLKM_MASK);
|
|
}
|
|
|
|
static const struct snd_soc_dapm_widget nau8810_dapm_widgets[] = {
|
|
SND_SOC_DAPM_MIXER("Speaker Mixer", NAU8810_REG_POWER3,
|
|
NAU8810_SPKMX_EN_SFT, 0, &nau8810_speaker_mixer_controls[0],
|
|
ARRAY_SIZE(nau8810_speaker_mixer_controls)),
|
|
SND_SOC_DAPM_MIXER("Mono Mixer", NAU8810_REG_POWER3,
|
|
NAU8810_MOUTMX_EN_SFT, 0, &nau8810_mono_mixer_controls[0],
|
|
ARRAY_SIZE(nau8810_mono_mixer_controls)),
|
|
SND_SOC_DAPM_DAC("DAC", "Playback", NAU8810_REG_POWER3,
|
|
NAU8810_DAC_EN_SFT, 0),
|
|
SND_SOC_DAPM_ADC("ADC", "Capture", NAU8810_REG_POWER2,
|
|
NAU8810_ADC_EN_SFT, 0),
|
|
SND_SOC_DAPM_PGA("SpkN Out", NAU8810_REG_POWER3,
|
|
NAU8810_NSPK_EN_SFT, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA("SpkP Out", NAU8810_REG_POWER3,
|
|
NAU8810_PSPK_EN_SFT, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA("Mono Out", NAU8810_REG_POWER3,
|
|
NAU8810_MOUT_EN_SFT, 0, NULL, 0),
|
|
|
|
SND_SOC_DAPM_MIXER("Input PGA", NAU8810_REG_POWER2,
|
|
NAU8810_PGA_EN_SFT, 0, nau8810_inpga,
|
|
ARRAY_SIZE(nau8810_inpga)),
|
|
SND_SOC_DAPM_MIXER("Input Boost Stage", NAU8810_REG_POWER2,
|
|
NAU8810_BST_EN_SFT, 0, nau8810_pgaboost_mixer_controls,
|
|
ARRAY_SIZE(nau8810_pgaboost_mixer_controls)),
|
|
|
|
SND_SOC_DAPM_SUPPLY("Mic Bias", NAU8810_REG_POWER1,
|
|
NAU8810_MICBIAS_EN_SFT, 0, NULL, 0),
|
|
SND_SOC_DAPM_SUPPLY("PLL", NAU8810_REG_POWER1,
|
|
NAU8810_PLL_EN_SFT, 0, NULL, 0),
|
|
|
|
SND_SOC_DAPM_SWITCH("Digital Loopback", SND_SOC_NOPM, 0, 0,
|
|
&nau8810_loopback),
|
|
|
|
SND_SOC_DAPM_INPUT("MICN"),
|
|
SND_SOC_DAPM_INPUT("MICP"),
|
|
SND_SOC_DAPM_OUTPUT("MONOOUT"),
|
|
SND_SOC_DAPM_OUTPUT("SPKOUTP"),
|
|
SND_SOC_DAPM_OUTPUT("SPKOUTN"),
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route nau8810_dapm_routes[] = {
|
|
{"DAC", NULL, "PLL", check_mclk_select_pll},
|
|
|
|
/* Mono output mixer */
|
|
{"Mono Mixer", "PCM Playback Switch", "DAC"},
|
|
{"Mono Mixer", "Line Bypass Switch", "Input Boost Stage"},
|
|
|
|
/* Speaker output mixer */
|
|
{"Speaker Mixer", "PCM Playback Switch", "DAC"},
|
|
{"Speaker Mixer", "Line Bypass Switch", "Input Boost Stage"},
|
|
|
|
/* Outputs */
|
|
{"Mono Out", NULL, "Mono Mixer"},
|
|
{"MONOOUT", NULL, "Mono Out"},
|
|
{"SpkN Out", NULL, "Speaker Mixer"},
|
|
{"SpkP Out", NULL, "Speaker Mixer"},
|
|
{"SPKOUTN", NULL, "SpkN Out"},
|
|
{"SPKOUTP", NULL, "SpkP Out"},
|
|
|
|
/* Input Boost Stage */
|
|
{"ADC", NULL, "Input Boost Stage"},
|
|
{"ADC", NULL, "PLL", check_mclk_select_pll},
|
|
{"Input Boost Stage", "PGA Mute Switch", "Input PGA"},
|
|
{"Input Boost Stage", "PMIC PGA Switch", "MICP"},
|
|
|
|
/* Input PGA */
|
|
{"Input PGA", NULL, "Mic Bias"},
|
|
{"Input PGA", "MicN Switch", "MICN"},
|
|
{"Input PGA", "MicP Switch", "MICP"},
|
|
|
|
/* Digital Looptack */
|
|
{"Digital Loopback", "Switch", "ADC"},
|
|
{"DAC", NULL, "Digital Loopback"},
|
|
};
|
|
|
|
static int nau8810_set_sysclk(struct snd_soc_dai *dai,
|
|
int clk_id, unsigned int freq, int dir)
|
|
{
|
|
struct snd_soc_component *component = dai->component;
|
|
struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component);
|
|
|
|
nau8810->clk_id = clk_id;
|
|
nau8810->sysclk = freq;
|
|
dev_dbg(nau8810->dev, "master sysclk %dHz, source %s\n",
|
|
freq, clk_id == NAU8810_SCLK_PLL ? "PLL" : "MCLK");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nau8810_calc_pll(unsigned int pll_in,
|
|
unsigned int fs, struct nau8810_pll *pll_param)
|
|
{
|
|
u64 f2, f2_max, pll_ratio;
|
|
int i, scal_sel;
|
|
|
|
if (pll_in > NAU_PLL_REF_MAX || pll_in < NAU_PLL_REF_MIN)
|
|
return -EINVAL;
|
|
|
|
f2_max = 0;
|
|
scal_sel = ARRAY_SIZE(nau8810_mclk_scaler);
|
|
for (i = 0; i < ARRAY_SIZE(nau8810_mclk_scaler); i++) {
|
|
f2 = 256ULL * fs * 4 * nau8810_mclk_scaler[i];
|
|
f2 = div_u64(f2, 10);
|
|
if (f2 > NAU_PLL_FREQ_MIN && f2 < NAU_PLL_FREQ_MAX &&
|
|
f2_max < f2) {
|
|
f2_max = f2;
|
|
scal_sel = i;
|
|
}
|
|
}
|
|
if (ARRAY_SIZE(nau8810_mclk_scaler) == scal_sel)
|
|
return -EINVAL;
|
|
pll_param->mclk_scaler = scal_sel;
|
|
f2 = f2_max;
|
|
|
|
/* Calculate the PLL 4-bit integer input and the PLL 24-bit fractional
|
|
* input; round up the 24+4bit.
|
|
*/
|
|
pll_ratio = div_u64(f2 << 28, pll_in);
|
|
pll_param->pre_factor = 0;
|
|
if (((pll_ratio >> 28) & 0xF) < NAU_PLL_OPTOP_MIN) {
|
|
pll_ratio <<= 1;
|
|
pll_param->pre_factor = 1;
|
|
}
|
|
pll_param->pll_int = (pll_ratio >> 28) & 0xF;
|
|
pll_param->pll_frac = ((pll_ratio & 0xFFFFFFF) >> 4);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nau8810_set_pll(struct snd_soc_dai *codec_dai, int pll_id,
|
|
int source, unsigned int freq_in, unsigned int freq_out)
|
|
{
|
|
struct snd_soc_component *component = codec_dai->component;
|
|
struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component);
|
|
struct regmap *map = nau8810->regmap;
|
|
struct nau8810_pll *pll_param = &nau8810->pll;
|
|
int ret, fs;
|
|
|
|
fs = freq_out / 256;
|
|
ret = nau8810_calc_pll(freq_in, fs, pll_param);
|
|
if (ret < 0) {
|
|
dev_err(nau8810->dev, "Unsupported input clock %d\n", freq_in);
|
|
return ret;
|
|
}
|
|
dev_info(nau8810->dev, "pll_int=%x pll_frac=%x mclk_scaler=%x pre_factor=%x\n",
|
|
pll_param->pll_int, pll_param->pll_frac, pll_param->mclk_scaler,
|
|
pll_param->pre_factor);
|
|
|
|
regmap_update_bits(map, NAU8810_REG_PLLN,
|
|
NAU8810_PLLMCLK_DIV2 | NAU8810_PLLN_MASK,
|
|
(pll_param->pre_factor ? NAU8810_PLLMCLK_DIV2 : 0) |
|
|
pll_param->pll_int);
|
|
regmap_write(map, NAU8810_REG_PLLK1,
|
|
(pll_param->pll_frac >> NAU8810_PLLK1_SFT) &
|
|
NAU8810_PLLK1_MASK);
|
|
regmap_write(map, NAU8810_REG_PLLK2,
|
|
(pll_param->pll_frac >> NAU8810_PLLK2_SFT) &
|
|
NAU8810_PLLK2_MASK);
|
|
regmap_write(map, NAU8810_REG_PLLK3,
|
|
pll_param->pll_frac & NAU8810_PLLK3_MASK);
|
|
regmap_update_bits(map, NAU8810_REG_CLOCK, NAU8810_MCLKSEL_MASK,
|
|
pll_param->mclk_scaler << NAU8810_MCLKSEL_SFT);
|
|
regmap_update_bits(map, NAU8810_REG_CLOCK,
|
|
NAU8810_CLKM_MASK, NAU8810_CLKM_PLL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nau8810_set_dai_fmt(struct snd_soc_dai *codec_dai,
|
|
unsigned int fmt)
|
|
{
|
|
struct snd_soc_component *component = codec_dai->component;
|
|
struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component);
|
|
u16 ctrl1_val = 0, ctrl2_val = 0;
|
|
|
|
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
|
|
case SND_SOC_DAIFMT_CBM_CFM:
|
|
ctrl2_val |= NAU8810_CLKIO_MASTER;
|
|
break;
|
|
case SND_SOC_DAIFMT_CBS_CFS:
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
|
|
case SND_SOC_DAIFMT_I2S:
|
|
ctrl1_val |= NAU8810_AIFMT_I2S;
|
|
break;
|
|
case SND_SOC_DAIFMT_RIGHT_J:
|
|
break;
|
|
case SND_SOC_DAIFMT_LEFT_J:
|
|
ctrl1_val |= NAU8810_AIFMT_LEFT;
|
|
break;
|
|
case SND_SOC_DAIFMT_DSP_A:
|
|
ctrl1_val |= NAU8810_AIFMT_PCM_A;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
|
|
case SND_SOC_DAIFMT_NB_NF:
|
|
break;
|
|
case SND_SOC_DAIFMT_IB_IF:
|
|
ctrl1_val |= NAU8810_BCLKP_IB | NAU8810_FSP_IF;
|
|
break;
|
|
case SND_SOC_DAIFMT_IB_NF:
|
|
ctrl1_val |= NAU8810_BCLKP_IB;
|
|
break;
|
|
case SND_SOC_DAIFMT_NB_IF:
|
|
ctrl1_val |= NAU8810_FSP_IF;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
regmap_update_bits(nau8810->regmap, NAU8810_REG_IFACE,
|
|
NAU8810_AIFMT_MASK | NAU8810_FSP_IF |
|
|
NAU8810_BCLKP_IB, ctrl1_val);
|
|
regmap_update_bits(nau8810->regmap, NAU8810_REG_CLOCK,
|
|
NAU8810_CLKIO_MASK, ctrl2_val);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nau8810_mclk_clkdiv(struct nau8810 *nau8810, int rate)
|
|
{
|
|
int i, sclk, imclk = rate * 256, div = 0;
|
|
|
|
if (!nau8810->sysclk) {
|
|
dev_err(nau8810->dev, "Make mclk div configuration fail because of invalid system clock\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Configure the master clock prescaler div to make system
|
|
* clock to approximate the internal master clock (IMCLK);
|
|
* and large or equal to IMCLK.
|
|
*/
|
|
for (i = 1; i < ARRAY_SIZE(nau8810_mclk_scaler); i++) {
|
|
sclk = (nau8810->sysclk * 10) /
|
|
nau8810_mclk_scaler[i];
|
|
if (sclk < imclk)
|
|
break;
|
|
div = i;
|
|
}
|
|
dev_dbg(nau8810->dev,
|
|
"master clock prescaler %x for fs %d\n", div, rate);
|
|
|
|
/* master clock from MCLK and disable PLL */
|
|
regmap_update_bits(nau8810->regmap, NAU8810_REG_CLOCK,
|
|
NAU8810_MCLKSEL_MASK, (div << NAU8810_MCLKSEL_SFT));
|
|
regmap_update_bits(nau8810->regmap, NAU8810_REG_CLOCK,
|
|
NAU8810_CLKM_MASK, NAU8810_CLKM_MCLK);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nau8810_pcm_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 nau8810 *nau8810 = snd_soc_component_get_drvdata(component);
|
|
int val_len = 0, val_rate = 0, ret = 0;
|
|
unsigned int ctrl_val, bclk_fs, bclk_div;
|
|
|
|
/* Select BCLK configuration if the codec as master. */
|
|
regmap_read(nau8810->regmap, NAU8810_REG_CLOCK, &ctrl_val);
|
|
if (ctrl_val & NAU8810_CLKIO_MASTER) {
|
|
/* get the bclk and fs ratio */
|
|
bclk_fs = snd_soc_params_to_bclk(params) / params_rate(params);
|
|
if (bclk_fs <= 32)
|
|
bclk_div = NAU8810_BCLKDIV_8;
|
|
else if (bclk_fs <= 64)
|
|
bclk_div = NAU8810_BCLKDIV_4;
|
|
else if (bclk_fs <= 128)
|
|
bclk_div = NAU8810_BCLKDIV_2;
|
|
else
|
|
return -EINVAL;
|
|
regmap_update_bits(nau8810->regmap, NAU8810_REG_CLOCK,
|
|
NAU8810_BCLKSEL_MASK, bclk_div);
|
|
}
|
|
|
|
switch (params_width(params)) {
|
|
case 16:
|
|
break;
|
|
case 20:
|
|
val_len |= NAU8810_WLEN_20;
|
|
break;
|
|
case 24:
|
|
val_len |= NAU8810_WLEN_24;
|
|
break;
|
|
case 32:
|
|
val_len |= NAU8810_WLEN_32;
|
|
break;
|
|
}
|
|
|
|
switch (params_rate(params)) {
|
|
case 8000:
|
|
val_rate |= NAU8810_SMPLR_8K;
|
|
break;
|
|
case 11025:
|
|
val_rate |= NAU8810_SMPLR_12K;
|
|
break;
|
|
case 16000:
|
|
val_rate |= NAU8810_SMPLR_16K;
|
|
break;
|
|
case 22050:
|
|
val_rate |= NAU8810_SMPLR_24K;
|
|
break;
|
|
case 32000:
|
|
val_rate |= NAU8810_SMPLR_32K;
|
|
break;
|
|
case 44100:
|
|
case 48000:
|
|
break;
|
|
}
|
|
|
|
regmap_update_bits(nau8810->regmap, NAU8810_REG_IFACE,
|
|
NAU8810_WLEN_MASK, val_len);
|
|
regmap_update_bits(nau8810->regmap, NAU8810_REG_SMPLR,
|
|
NAU8810_SMPLR_MASK, val_rate);
|
|
|
|
/* If the master clock is from MCLK, provide the runtime FS for driver
|
|
* to get the master clock prescaler configuration.
|
|
*/
|
|
if (nau8810->clk_id == NAU8810_SCLK_MCLK) {
|
|
ret = nau8810_mclk_clkdiv(nau8810, params_rate(params));
|
|
if (ret < 0)
|
|
dev_err(nau8810->dev, "MCLK div configuration fail\n");
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int nau8810_set_bias_level(struct snd_soc_component *component,
|
|
enum snd_soc_bias_level level)
|
|
{
|
|
struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component);
|
|
struct regmap *map = nau8810->regmap;
|
|
|
|
switch (level) {
|
|
case SND_SOC_BIAS_ON:
|
|
case SND_SOC_BIAS_PREPARE:
|
|
regmap_update_bits(map, NAU8810_REG_POWER1,
|
|
NAU8810_REFIMP_MASK, NAU8810_REFIMP_80K);
|
|
break;
|
|
|
|
case SND_SOC_BIAS_STANDBY:
|
|
regmap_update_bits(map, NAU8810_REG_POWER1,
|
|
NAU8810_IOBUF_EN | NAU8810_ABIAS_EN,
|
|
NAU8810_IOBUF_EN | NAU8810_ABIAS_EN);
|
|
|
|
if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
|
|
regcache_sync(map);
|
|
regmap_update_bits(map, NAU8810_REG_POWER1,
|
|
NAU8810_REFIMP_MASK, NAU8810_REFIMP_3K);
|
|
mdelay(100);
|
|
}
|
|
regmap_update_bits(map, NAU8810_REG_POWER1,
|
|
NAU8810_REFIMP_MASK, NAU8810_REFIMP_300K);
|
|
break;
|
|
|
|
case SND_SOC_BIAS_OFF:
|
|
regmap_write(map, NAU8810_REG_POWER1, 0);
|
|
regmap_write(map, NAU8810_REG_POWER2, 0);
|
|
regmap_write(map, NAU8810_REG_POWER3, 0);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
#define NAU8810_RATES (SNDRV_PCM_RATE_8000_48000)
|
|
|
|
#define NAU8810_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
|
|
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
|
|
|
|
static const struct snd_soc_dai_ops nau8810_ops = {
|
|
.hw_params = nau8810_pcm_hw_params,
|
|
.set_fmt = nau8810_set_dai_fmt,
|
|
.set_sysclk = nau8810_set_sysclk,
|
|
.set_pll = nau8810_set_pll,
|
|
};
|
|
|
|
static struct snd_soc_dai_driver nau8810_dai = {
|
|
.name = "nau8810-hifi",
|
|
.playback = {
|
|
.stream_name = "Playback",
|
|
.channels_min = 1,
|
|
.channels_max = 2, /* Only 1 channel of data */
|
|
.rates = NAU8810_RATES,
|
|
.formats = NAU8810_FORMATS,
|
|
},
|
|
.capture = {
|
|
.stream_name = "Capture",
|
|
.channels_min = 1,
|
|
.channels_max = 2, /* Only 1 channel of data */
|
|
.rates = NAU8810_RATES,
|
|
.formats = NAU8810_FORMATS,
|
|
},
|
|
.ops = &nau8810_ops,
|
|
.symmetric_rates = 1,
|
|
};
|
|
|
|
static const struct regmap_config nau8810_regmap_config = {
|
|
.reg_bits = 7,
|
|
.val_bits = 9,
|
|
|
|
.max_register = NAU8810_REG_MAX,
|
|
.readable_reg = nau8810_readable_reg,
|
|
.writeable_reg = nau8810_writeable_reg,
|
|
.volatile_reg = nau8810_volatile_reg,
|
|
|
|
.cache_type = REGCACHE_RBTREE,
|
|
.reg_defaults = nau8810_reg_defaults,
|
|
.num_reg_defaults = ARRAY_SIZE(nau8810_reg_defaults),
|
|
};
|
|
|
|
static const struct snd_soc_component_driver nau8810_component_driver = {
|
|
.set_bias_level = nau8810_set_bias_level,
|
|
.controls = nau8810_snd_controls,
|
|
.num_controls = ARRAY_SIZE(nau8810_snd_controls),
|
|
.dapm_widgets = nau8810_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(nau8810_dapm_widgets),
|
|
.dapm_routes = nau8810_dapm_routes,
|
|
.num_dapm_routes = ARRAY_SIZE(nau8810_dapm_routes),
|
|
.suspend_bias_off = 1,
|
|
.idle_bias_on = 1,
|
|
.use_pmdown_time = 1,
|
|
.endianness = 1,
|
|
.non_legacy_dai_naming = 1,
|
|
};
|
|
|
|
static int nau8810_i2c_probe(struct i2c_client *i2c,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct device *dev = &i2c->dev;
|
|
struct nau8810 *nau8810 = dev_get_platdata(dev);
|
|
|
|
if (!nau8810) {
|
|
nau8810 = devm_kzalloc(dev, sizeof(*nau8810), GFP_KERNEL);
|
|
if (!nau8810)
|
|
return -ENOMEM;
|
|
}
|
|
i2c_set_clientdata(i2c, nau8810);
|
|
|
|
nau8810->regmap = devm_regmap_init_i2c(i2c, &nau8810_regmap_config);
|
|
if (IS_ERR(nau8810->regmap))
|
|
return PTR_ERR(nau8810->regmap);
|
|
nau8810->dev = dev;
|
|
|
|
regmap_write(nau8810->regmap, NAU8810_REG_RESET, 0x00);
|
|
|
|
return devm_snd_soc_register_component(dev,
|
|
&nau8810_component_driver, &nau8810_dai, 1);
|
|
}
|
|
|
|
static const struct i2c_device_id nau8810_i2c_id[] = {
|
|
{ "nau8810", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, nau8810_i2c_id);
|
|
|
|
#ifdef CONFIG_OF
|
|
static const struct of_device_id nau8810_of_match[] = {
|
|
{ .compatible = "nuvoton,nau8810", },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, nau8810_of_match);
|
|
#endif
|
|
|
|
static struct i2c_driver nau8810_i2c_driver = {
|
|
.driver = {
|
|
.name = "nau8810",
|
|
.of_match_table = of_match_ptr(nau8810_of_match),
|
|
},
|
|
.probe = nau8810_i2c_probe,
|
|
.id_table = nau8810_i2c_id,
|
|
};
|
|
|
|
module_i2c_driver(nau8810_i2c_driver);
|
|
|
|
MODULE_DESCRIPTION("ASoC NAU8810 driver");
|
|
MODULE_AUTHOR("David Lin <ctlin0@nuvoton.com>");
|
|
MODULE_LICENSE("GPL v2");
|