The driver is for amplifiers NAU8325 of Nuvoton Technology Corporation. The NAU8325 is a stereo high efficiency filter-free Class-D audio amplifier, which is capable of driving a 4ohm load with up to 3W output power.
Signed-off-by: Seven Lee wtli@nuvoton.com --- sound/soc/codecs/nau8325.c | 900 +++++++++++++++++++++++++++++++++++++ sound/soc/codecs/nau8325.h | 391 ++++++++++++++++ 2 files changed, 1291 insertions(+) create mode 100644 sound/soc/codecs/nau8325.c create mode 100644 sound/soc/codecs/nau8325.h
diff --git a/sound/soc/codecs/nau8325.c b/sound/soc/codecs/nau8325.c new file mode 100644 index 000000000000..d65f73144597 --- /dev/null +++ b/sound/soc/codecs/nau8325.c @@ -0,0 +1,900 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// nau8325.c -- Nuvoton NAU8325 audio codec driver +// +// Copyright 2023 Nuvoton Technology Crop. +// Author: Seven Lee WTLI@nuvoton.com +// David Lin CTLIN0@nuvoton.com +// + +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/regmap.h> +#include <linux/slab.h> +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/tlv.h> +#include "nau8325.h" + +/* Range of Master Clock MCLK (Hz) */ +#define MASTER_CLK_MAX 49152000 +#define MASTER_CLK_MIN 2048000 + +/* scaling for MCLK source */ +#define CLK_PROC_BYPASS (-1) + +/* the maximum CLK_DAC */ +#define CLK_DA_AD_MAX 6144000 + +/* from MCLK input */ +#define MCLK_SRC 4 + +static const struct nau8325_src_attr mclk_n1_div[] = { + { 1, 0x0 }, + { 2, 0x1 }, + { 3, 0x2 }, +}; + +/* over sampling rate */ +static const struct nau8325_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 nau8325_src_attr mclk_n2_div[] = { + { 0, 0x0 }, + { 1, 0x1 }, + { 2, 0x2 }, + { 3, 0x3 }, + { 4, 0x4 }, +}; + +static const struct nau8325_src_attr mclk_n3_mult[] = { + { 0, 0x1 }, + { 1, 0x2 }, + { 2, 0x3 }, + { 3, 0x4 }, +}; + +/* Sample Rate and MCLK_SRC selections */ +static const struct nau8325_srate_attr target_srate_table[] = { + /* { FS, range, max, { MCLK source }} */ + { 48000, 2, true, { 12288000, 19200000, 24000000 } }, + { 16000, 1, false, { 4096000, 6400000, 8000000 } }, + { 8000, 0, false, { 2048000, 3200000, 4000000 }}, + { 44100, 2, true, { 11289600, 17640000, 22050000 }}, + { 64000, 3, false, { 16384000, 25600000, 32000000 } }, + { 96000, 3, true, { 24576000, 38400000, 48000000 } }, + { 12000, 0, true, { 3072000, 4800000, 6000000 } }, + { 24000, 1, true, { 6144000, 9600000, 12000000 } }, + { 32000, 2, false, { 8192000, 12800000, 16000000 } }, +}; + +static const struct reg_default nau8325_reg_defaults[] = { + { NAU8325_R00_HARDWARE_RST, 0x0000 }, + { NAU8325_R01_SOFTWARE_RST, 0x0000 }, + { NAU8325_R03_CLK_CTRL, 0x0000 }, + { NAU8325_R04_ENA_CTRL, 0x0000 }, + { NAU8325_R05_INTERRUPT_CTRL, 0x007f }, + { NAU8325_R09_IRQOUT, 0x0000 }, + { NAU8325_R0A_IO_CTRL, 0x0000 }, + { NAU8325_R0B_PDM_CTRL, 0x0000 }, + { NAU8325_R0C_TDM_CTRL, 0x0000 }, + { NAU8325_R0D_I2S_PCM_CTRL1, 0x000a }, + { NAU8325_R0E_I2S_PCM_CTRL2, 0x0000 }, + { NAU8325_R0F_L_TIME_SLOT, 0x0000 }, + { NAU8325_R10_R_TIME_SLOT, 0x0000 }, + { NAU8325_R11_HPF_CTRL, 0x0000 }, + { NAU8325_R12_MUTE_CTRL, 0x0000 }, + { NAU8325_R13_DAC_VOLUME, 0xf3f3 }, + { NAU8325_R29_DAC_CTRL1, 0x0081 }, + { NAU8325_R2A_DAC_CTRL2, 0x0000 }, + { NAU8325_R2C_ALC_CTRL1, 0x000e }, + { NAU8325_R2D_ALC_CTRL2, 0x8400 }, + { NAU8325_R2E_ALC_CTRL3, 0x0000 }, + { NAU8325_R2F_ALC_CTRL4, 0x003f }, + { NAU8325_R40_CLK_DET_CTRL, 0xa801 }, + { NAU8325_R50_MIXER_CTRL, 0x0000 }, + { NAU8325_R55_MISC_CTRL, 0x0000 }, + { NAU8325_R60_BIAS_ADJ, 0x0000 }, + { NAU8325_R61_ANALOG_CONTROL_1, 0x0000 }, + { NAU8325_R62_ANALOG_CONTROL_2, 0x0000 }, + { NAU8325_R63_ANALOG_CONTROL_3, 0x0000 }, + { NAU8325_R64_ANALOG_CONTROL_4, 0x0000 }, + { NAU8325_R65_ANALOG_CONTROL_5, 0x0000 }, + { NAU8325_R66_ANALOG_CONTROL_6, 0x0000 }, + { NAU8325_R69_CLIP_CTRL, 0x0000 }, + { NAU8325_R73_RDAC, 0x0008 }, +}; + +static bool nau8325_readable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case NAU8325_R02_DEVICE_ID ... NAU8325_R06_INT_CLR_STATUS: + case NAU8325_R09_IRQOUT ... NAU8325_R13_DAC_VOLUME: + case NAU8325_R1D_DEBUG_READ1: + case NAU8325_R1F_DEBUG_READ2: + case NAU8325_R22_DEBUG_READ3: + case NAU8325_R29_DAC_CTRL1 ... NAU8325_R2A_DAC_CTRL2: + case NAU8325_R2C_ALC_CTRL1 ... NAU8325_R2F_ALC_CTRL4: + case NAU8325_R40_CLK_DET_CTRL: + case NAU8325_R49_TEST_STATUS ... NAU8325_R4A_ANALOG_READ: + case NAU8325_R50_MIXER_CTRL: + case NAU8325_R55_MISC_CTRL: + case NAU8325_R60_BIAS_ADJ ... NAU8325_R66_ANALOG_CONTROL_6: + case NAU8325_R69_CLIP_CTRL: + case NAU8325_R73_RDAC: + return true; + default: + return false; + } +} + +static bool nau8325_writeable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case NAU8325_R00_HARDWARE_RST: + case NAU8325_R03_CLK_CTRL ... NAU8325_R06_INT_CLR_STATUS: + case NAU8325_R09_IRQOUT ... NAU8325_R13_DAC_VOLUME: + case NAU8325_R29_DAC_CTRL1 ... NAU8325_R2A_DAC_CTRL2: + case NAU8325_R2C_ALC_CTRL1 ... NAU8325_R2F_ALC_CTRL4: + case NAU8325_R40_CLK_DET_CTRL: + case NAU8325_R50_MIXER_CTRL: + case NAU8325_R55_MISC_CTRL: + case NAU8325_R60_BIAS_ADJ ... NAU8325_R66_ANALOG_CONTROL_6: + case NAU8325_R69_CLIP_CTRL: + case NAU8325_R73_RDAC: + return true; + default: + return false; + } +} + +static bool nau8325_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case NAU8325_R00_HARDWARE_RST ... NAU8325_R02_DEVICE_ID: + case NAU8325_R06_INT_CLR_STATUS: + case NAU8325_R1D_DEBUG_READ1: + case NAU8325_R1F_DEBUG_READ2: + case NAU8325_R22_DEBUG_READ3: + case NAU8325_R4A_ANALOG_READ: + return true; + default: + return false; + } +} + +static const char * const nau8325_dac_oversampl_texts[] = { + "64", "256", "128", "32", +}; + +static const unsigned int nau8325_dac_oversampl_values[] = { + 0, 1, 2, 4, +}; + +static const struct soc_enum nau8325_dac_oversampl_enum = + SOC_VALUE_ENUM_SINGLE(NAU8325_R29_DAC_CTRL1, + NAU8325_DAC_OVERSAMPLE_SFT, 0x7, + ARRAY_SIZE(nau8325_dac_oversampl_texts), + nau8325_dac_oversampl_texts, + nau8325_dac_oversampl_values); + +static const DECLARE_TLV_DB_MINMAX_MUTE(dac_vol_tlv, -8000, 600); + +static const struct snd_kcontrol_new nau8325_snd_controls[] = { + SOC_ENUM("DAC Oversampling Rate", nau8325_dac_oversampl_enum), + SOC_DOUBLE_TLV("Speaker Volume", NAU8325_R13_DAC_VOLUME, + NAU8325_DAC_VOLUME_L_SFT, NAU8325_DAC_VOLUME_R_SFT, + NAU8325_DAC_VOLUME_R_EN, 0, dac_vol_tlv), + SOC_SINGLE("ALC Max Gain", NAU8325_R2C_ALC_CTRL1, + NAU8325_ALC_MAXGAIN_SFT, NAU8325_ALC_MAXGAIN_MAX, 0), + SOC_SINGLE("ALC Min Gain", NAU8325_R2C_ALC_CTRL1, + NAU8325_ALC_MINGAIN_SFT, NAU8325_ALC_MINGAIN_MAX, 0), + SOC_SINGLE("ALC Decay Timer", NAU8325_R2D_ALC_CTRL2, + NAU8325_ALC_DCY_SFT, NAU8325_ALC_DCY_MAX, 0), + SOC_SINGLE("ALC Attack Timer", NAU8325_R2D_ALC_CTRL2, + NAU8325_ALC_ATK_SFT, NAU8325_ALC_ATK_MAX, 0), + SOC_SINGLE("ALC Hold Time", NAU8325_R2D_ALC_CTRL2, + NAU8325_ALC_HLD_SFT, NAU8325_ALC_HLD_MAX, 0), + SOC_SINGLE("ALC Target Level", NAU8325_R2D_ALC_CTRL2, + NAU8325_ALC_LVL_SFT, NAU8325_ALC_LVL_MAX, 0), + SOC_SINGLE("ALC Enable Switch", NAU8325_R2E_ALC_CTRL3, + NAU8325_ALC_EN_SFT, 1, 0), +}; + +static int nau8325_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 nau8325 *nau8325 = snd_soc_component_get_drvdata(component); + + switch (event) { + case SND_SOC_DAPM_POST_PMU: + regmap_update_bits(nau8325->regmap, NAU8325_R12_MUTE_CTRL, + NAU8325_SOFT_MUTE, 0); + msleep(30); + break; + case SND_SOC_DAPM_PRE_PMD: + /* Soft mute the output to prevent the pop noise. */ + regmap_update_bits(nau8325->regmap, NAU8325_R12_MUTE_CTRL, + NAU8325_SOFT_MUTE, NAU8325_SOFT_MUTE); + msleep(30); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int nau8325_powerup_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 nau8325 *nau8325 = snd_soc_component_get_drvdata(component); + + if (nau8325->clock_detection) + return 0; + + switch (event) { + case SND_SOC_DAPM_POST_PMU: + regmap_update_bits(nau8325->regmap, NAU8325_R40_CLK_DET_CTRL, + NAU8325_PWRUP_DFT, NAU8325_PWRUP_DFT); + break; + case SND_SOC_DAPM_POST_PMD: + regmap_update_bits(nau8325->regmap, NAU8325_R40_CLK_DET_CTRL, + NAU8325_PWRUP_DFT, 0); + break; + default: + return -EINVAL; + } + + return 0; +} + +static const struct snd_soc_dapm_widget nau8325_dapm_widgets[] = { + SND_SOC_DAPM_SUPPLY("Power Up", SND_SOC_NOPM, 0, 0, + nau8325_powerup_event, SND_SOC_DAPM_POST_PMU | + SND_SOC_DAPM_POST_PMD), + SND_SOC_DAPM_DAC_E("DACL", NULL, NAU8325_R04_ENA_CTRL, + NAU8325_DAC_LEFT_CH_EN_SFT, 0, nau8325_dac_event, + SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), + SND_SOC_DAPM_DAC_E("DACR", NULL, NAU8325_R04_ENA_CTRL, + NAU8325_DAC_RIGHT_CH_EN_SFT, 0, nau8325_dac_event, + SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), + SND_SOC_DAPM_AIF_IN("AIFRX", "Playback", 0, SND_SOC_NOPM, 0, 0), + + SND_SOC_DAPM_OUTPUT("SPKL"), + SND_SOC_DAPM_OUTPUT("SPKR"), +}; + +static const struct snd_soc_dapm_route nau8325_dapm_routes[] = { + { "DACL", NULL, "Power Up" }, + { "DACR", NULL, "Power Up" }, + + { "DACL", NULL, "AIFRX" }, + { "DACR", NULL, "AIFRX" }, + { "SPKL", NULL, "DACL" }, + { "SPKR", NULL, "DACR" }, +}; + +static int nau8325_srate_clk_apply(struct nau8325 *nau8325, + const struct nau8325_srate_attr *srate_table, + int n1_sel, int mclk_mult_sel, int n2_sel) +{ + if (!srate_table || n2_sel < 0 || n2_sel >= ARRAY_SIZE(mclk_n2_div) || + n1_sel < 0 || n1_sel >= ARRAY_SIZE(mclk_n1_div)) { + dev_dbg(nau8325->dev, "The CLK isn't supported."); + return -EINVAL; + } + + regmap_update_bits(nau8325->regmap, NAU8325_R40_CLK_DET_CTRL, + NAU8325_REG_SRATE_MASK | NAU8325_REG_DIV_MAX, + (srate_table->range << NAU8325_REG_SRATE_SFT) | + (srate_table->max ? NAU8325_REG_DIV_MAX : 0)); + regmap_update_bits(nau8325->regmap, NAU8325_R03_CLK_CTRL, + NAU8325_MCLK_SRC_MASK, mclk_n2_div[n2_sel].val); + regmap_update_bits(nau8325->regmap, NAU8325_R03_CLK_CTRL, + NAU8325_CLK_MUL_SRC_MASK, + mclk_n1_div[n1_sel].val << NAU8325_CLK_MUL_SRC_SFT); + + if (mclk_mult_sel != CLK_PROC_BYPASS) { + regmap_update_bits(nau8325->regmap, NAU8325_R03_CLK_CTRL, + NAU8325_MCLK_SEL_MASK, + mclk_n3_mult[mclk_mult_sel].val << + NAU8325_MCLK_SEL_SFT); + } else { + regmap_update_bits(nau8325->regmap, NAU8325_R03_CLK_CTRL, + NAU8325_MCLK_SEL_MASK, 0); + } + + switch (mclk_mult_sel) { + case 2: + regmap_update_bits(nau8325->regmap, NAU8325_R65_ANALOG_CONTROL_5, + NAU8325_MCLK4XEN_EN, NAU8325_MCLK4XEN_EN); + break; + case 3: + regmap_update_bits(nau8325->regmap, NAU8325_R65_ANALOG_CONTROL_5, + NAU8325_MCLK4XEN_EN | NAU8325_MCLK8XEN_EN, + NAU8325_MCLK4XEN_EN | NAU8325_MCLK8XEN_EN); + break; + default: + regmap_update_bits(nau8325->regmap, NAU8325_R65_ANALOG_CONTROL_5, + NAU8325_MCLK4XEN_EN | NAU8325_MCLK8XEN_EN, 0); + break; + } + + return 0; +} + +static int nau8325_clksrc_n2(struct nau8325 *nau8325, + const struct nau8325_srate_attr *srate_table, + int mclk, int *n2_sel) +{ + int i, mclk_src, ratio; + + ratio = NAU8325_MCLK_FS_RATIO_NUM; + for (i = 0; i < ARRAY_SIZE(mclk_n2_div); i++) { + mclk_src = mclk >> mclk_n2_div[i].param; + if (srate_table->mclk_src[NAU8325_MCLK_FS_RATIO_256] == mclk_src) { + ratio = NAU8325_MCLK_FS_RATIO_256; + break; + } else if (srate_table->mclk_src[NAU8325_MCLK_FS_RATIO_400] == mclk_src) { + ratio = NAU8325_MCLK_FS_RATIO_400; + break; + } else if (srate_table->mclk_src[NAU8325_MCLK_FS_RATIO_500] == mclk_src) { + ratio = NAU8325_MCLK_FS_RATIO_500; + break; + } + } + if (ratio != NAU8325_MCLK_FS_RATIO_NUM) + *n2_sel = i; + + return ratio; +} + +static const struct nau8325_srate_attr *target_srate_attribute(int srate) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(target_srate_table); i++) + if (target_srate_table[i].fs == srate) + break; + + if (i == ARRAY_SIZE(target_srate_table)) + goto proc_err; + + return &target_srate_table[i]; + +proc_err: + return NULL; +} + +static int nau8325_clksrc_choose(struct nau8325 *nau8325, + const struct nau8325_srate_attr **srate_table, + int *n1_sel, int *mult_sel, int *n2_sel) +{ + int i, j, mclk, mclk_max, ratio, ratio_sel, n2_max; + + if (!nau8325->mclk || !nau8325->fs) + goto proc_err; + + /* select sampling rate and MCLK_SRC */ + *srate_table = target_srate_attribute(nau8325->fs); + if (!*srate_table) + goto proc_err; + + /* First check clock from MCLK directly, decide N2 for MCLK_SRC. + * If not good, consider 1/N1 and Multiplier. + */ + ratio = nau8325_clksrc_n2(nau8325, *srate_table, nau8325->mclk, n2_sel); + if (ratio != NAU8325_MCLK_FS_RATIO_NUM) { + *n1_sel = 0; + *mult_sel = CLK_PROC_BYPASS; + *n2_sel = MCLK_SRC; + goto proc_done; + } + + /* Get MCLK_SRC through 1/N, Multiplier, and then 1/N2. */ + mclk_max = 0; + for (i = 0; i < ARRAY_SIZE(mclk_n1_div); i++) { + for (j = 0; j < ARRAY_SIZE(mclk_n3_mult); j++) { + mclk = nau8325->mclk << mclk_n3_mult[j].param; + mclk = mclk / mclk_n1_div[i].param; + ratio = nau8325_clksrc_n2(nau8325, + *srate_table, mclk, n2_sel); + if (ratio != NAU8325_MCLK_FS_RATIO_NUM && + (mclk_max < mclk || i > *n1_sel)) { + mclk_max = mclk; + n2_max = *n2_sel; + *n1_sel = i; + *mult_sel = j; + ratio_sel = ratio; + goto proc_done; + } + } + } + if (mclk_max) { + *n2_sel = n2_max; + ratio = ratio_sel; + goto proc_done; + } + +proc_err: + dev_dbg(nau8325->dev, "The MCLK %d is invalid. It can't get MCLK_SRC of 256/400/500 FS (%d)", + nau8325->mclk, nau8325->fs); + return -EINVAL; +proc_done: + dev_dbg(nau8325->dev, "nau8325->fs=%d,range=0x%x, %s, (n1,mu,n2,dmu):(%d,%d,%d), MCLK_SRC=%uHz (%d)", + nau8325->fs, (*srate_table)->range, + (*srate_table)->max ? "MAX" : "MIN", + *n1_sel == CLK_PROC_BYPASS ? + CLK_PROC_BYPASS : mclk_n1_div[*n1_sel].param, + *mult_sel == CLK_PROC_BYPASS ? + CLK_PROC_BYPASS : 1 << mclk_n3_mult[*mult_sel].param, + 1 << mclk_n2_div[*n2_sel].param, + (*srate_table)->mclk_src[ratio], + (*srate_table)->mclk_src[ratio] / nau8325->fs); + + return 0; +} + +static int nau8325_clock_config(struct nau8325 *nau8325) +{ + const struct nau8325_srate_attr *srate_table; + int ret, n1_sel, mult_sel, n2_sel; + + ret = nau8325_clksrc_choose(nau8325, &srate_table, + &n1_sel, &mult_sel, &n2_sel); + if (ret) + goto err; + + ret = nau8325_srate_clk_apply(nau8325, srate_table, + n1_sel, mult_sel, n2_sel); + if (ret) + goto err; + + return 0; +err: + return ret; +} + +static const struct nau8325_osr_attr *nau8325_get_osr(struct nau8325 *nau8325) +{ + unsigned int osr; + + regmap_read(nau8325->regmap, NAU8325_R29_DAC_CTRL1, &osr); + osr &= NAU8325_DAC_OVERSAMPLE_MASK; + if (osr >= ARRAY_SIZE(osr_dac_sel)) + return NULL; + + return &osr_dac_sel[osr]; +} + +static int nau8325_dai_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct nau8325 *nau8325 = snd_soc_component_get_drvdata(component); + const struct nau8325_osr_attr *osr; + + osr = nau8325_get_osr(nau8325); + 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 nau8325_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 nau8325 *nau8325 = snd_soc_component_get_drvdata(component); + unsigned int val_len = 0; + const struct nau8325_osr_attr *osr; + int ret; + + nau8325->fs = params_rate(params); + osr = nau8325_get_osr(nau8325); + if (!osr || !osr->osr || nau8325->fs * osr->osr > CLK_DA_AD_MAX) { + ret = -EINVAL; + goto err; + } + regmap_update_bits(nau8325->regmap, NAU8325_R03_CLK_CTRL, + NAU8325_CLK_DAC_SRC_MASK, + osr->clk_src << NAU8325_CLK_DAC_SRC_SFT); + + ret = nau8325_clock_config(nau8325); + if (ret) + goto err; + + switch (params_width(params)) { + case 16: + val_len |= NAU8325_I2S_DL_16; + break; + case 20: + val_len |= NAU8325_I2S_DL_20; + break; + case 24: + val_len |= NAU8325_I2S_DL_24; + break; + case 32: + val_len |= NAU8325_I2S_DL_32; + break; + default: + ret = -EINVAL; + goto err; + } + + regmap_update_bits(nau8325->regmap, NAU8325_R0D_I2S_PCM_CTRL1, + NAU8325_I2S_DL_MASK, val_len); + + return 0; + +err: + return ret; +} + +static int nau8325_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct snd_soc_component *component = dai->component; + struct nau8325 *nau8325 = snd_soc_component_get_drvdata(component); + unsigned int ctrl1_val = 0; + + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + 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 |= NAU8325_I2S_BP_INV; + break; + default: + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + ctrl1_val |= NAU8325_I2S_DF_I2S; + break; + case SND_SOC_DAIFMT_LEFT_J: + ctrl1_val |= NAU8325_I2S_DF_LEFT; + break; + case SND_SOC_DAIFMT_RIGHT_J: + ctrl1_val |= NAU8325_I2S_DF_RIGTH; + break; + case SND_SOC_DAIFMT_DSP_A: + ctrl1_val |= NAU8325_I2S_DF_PCM_AB; + break; + case SND_SOC_DAIFMT_DSP_B: + ctrl1_val |= NAU8325_I2S_DF_PCM_AB; + ctrl1_val |= NAU8325_I2S_PCMB_EN; + break; + default: + return -EINVAL; + } + + regmap_update_bits(nau8325->regmap, NAU8325_R0D_I2S_PCM_CTRL1, + NAU8325_I2S_DF_MASK | NAU8325_I2S_BP_MASK | + NAU8325_I2S_PCMB_EN, ctrl1_val); + + return 0; +} + +static int nau8325_set_sysclk(struct snd_soc_component *component, int clk_id, + int source, unsigned int freq, int dir) +{ + struct nau8325 *nau8325 = snd_soc_component_get_drvdata(component); + + if (freq < MASTER_CLK_MIN || freq > MASTER_CLK_MAX) { + dev_dbg(nau8325->dev, "MCLK exceeds the range, MCLK:%d", freq); + return -EINVAL; + } + + nau8325->mclk = freq; + dev_dbg(nau8325->dev, "MCLK %dHz", nau8325->mclk); + + return 0; +} + +static const struct snd_soc_component_driver nau8325_component_driver = { + .set_sysclk = nau8325_set_sysclk, + .suspend_bias_off = true, + .controls = nau8325_snd_controls, + .num_controls = ARRAY_SIZE(nau8325_snd_controls), + .dapm_widgets = nau8325_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(nau8325_dapm_widgets), + .dapm_routes = nau8325_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(nau8325_dapm_routes), +}; + +static const struct snd_soc_dai_ops nau8325_dai_ops = { + .startup = nau8325_dai_startup, + .hw_params = nau8325_hw_params, + .set_fmt = nau8325_set_fmt, +}; + +#define NAU8325_RATES SNDRV_PCM_RATE_8000_96000 +#define NAU8325_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE \ + | SNDRV_PCM_FMTBIT_S24_3LE) + +static struct snd_soc_dai_driver nau8325_dai = { + .name = NAU8325_CODEC_DAI, + .playback = { + .stream_name = "Playback", + .channels_min = 1, + .channels_max = 2, + .rates = NAU8325_RATES, + .formats = NAU8325_FORMATS, + }, + .ops = &nau8325_dai_ops, +}; + +static const struct regmap_config nau8325_regmap_config = { + .reg_bits = NAU8325_REG_ADDR_LEN, + .val_bits = NAU8325_REG_DATA_LEN, + + .max_register = NAU8325_REG_MAX, + .readable_reg = nau8325_readable_reg, + .writeable_reg = nau8325_writeable_reg, + .volatile_reg = nau8325_volatile_reg, + + .cache_type = REGCACHE_RBTREE, + .reg_defaults = nau8325_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(nau8325_reg_defaults), +}; + +static void nau8325_reset_chip(struct regmap *regmap) +{ + regmap_write(regmap, NAU8325_R00_HARDWARE_RST, 0x0001); + regmap_write(regmap, NAU8325_R00_HARDWARE_RST, 0x0000); +} + +static void nau8325_init_regs(struct nau8325 *nau8325) +{ + struct regmap *regmap = nau8325->regmap; + struct device *dev = nau8325->dev; + + /* set ALC parameters */ + regmap_update_bits(regmap, NAU8325_R2C_ALC_CTRL1, + NAU8325_ALC_MAXGAIN_MASK, + 0x7 << NAU8325_ALC_MAXGAIN_SFT); + regmap_update_bits(regmap, NAU8325_R2D_ALC_CTRL2, + NAU8325_ALC_DCY_MASK | NAU8325_ALC_ATK_MASK | + NAU8325_ALC_HLD_MASK, (0x5 << NAU8325_ALC_DCY_SFT) | + (0x3 << NAU8325_ALC_ATK_SFT) | + (0x5 << NAU8325_ALC_HLD_SFT)); + /* Enable ALC to avoid signal distortion when battery low. */ + if (nau8325->alc_enable) + regmap_update_bits(regmap, NAU8325_R2E_ALC_CTRL3, + NAU8325_ALC_EN, NAU8325_ALC_EN); + if (nau8325->clock_detection) + regmap_update_bits(regmap, NAU8325_R40_CLK_DET_CTRL, + NAU8325_CLKPWRUP_DIS | + NAU8325_PWRUP_DFT, 0); + else + regmap_update_bits(regmap, NAU8325_R40_CLK_DET_CTRL, + NAU8325_CLKPWRUP_DIS | NAU8325_PWRUP_DFT, + NAU8325_CLKPWRUP_DIS); + if (nau8325->clock_det_data) + regmap_update_bits(regmap, NAU8325_R40_CLK_DET_CTRL, + NAU8325_APWRUP_EN, NAU8325_APWRUP_EN); + else + regmap_update_bits(regmap, NAU8325_R40_CLK_DET_CTRL, + NAU8325_APWRUP_EN, 0); + + /* DAC Reference Voltage Setting */ + switch (nau8325->dac_vref_microvolt) { + case 1800000: + regmap_update_bits(regmap, NAU8325_R73_RDAC, + NAU8325_DACVREFSEL_MASK, 0 << NAU8325_DACVREFSEL_SFT); + break; + case 2700000: + regmap_update_bits(regmap, NAU8325_R73_RDAC, + NAU8325_DACVREFSEL_MASK, 1 << NAU8325_DACVREFSEL_SFT); + break; + case 2880000: + regmap_update_bits(regmap, NAU8325_R73_RDAC, + NAU8325_DACVREFSEL_MASK, 2 << NAU8325_DACVREFSEL_SFT); + break; + case 3060000: + regmap_update_bits(regmap, NAU8325_R73_RDAC, + NAU8325_DACVREFSEL_MASK, 3 << NAU8325_DACVREFSEL_SFT); + break; + default: + dev_dbg(dev, "Invalid dac-vref-microvolt %d", nau8325->dac_vref_microvolt); + + } + + /* DAC Reference Voltage Decoupling Capacitors. */ + regmap_update_bits(regmap, NAU8325_R63_ANALOG_CONTROL_3, + NAU8325_CLASSD_COARSE_GAIN_MASK, 0x4); + /* Auto-Att Min Gain 0dB, Class-D N Driver Slew Rate -25%. */ + regmap_update_bits(regmap, NAU8325_R64_ANALOG_CONTROL_4, + NAU8325_CLASSD_SLEWN_MASK, 0x7); + + /* VMID Tieoff (VMID Resistor Selection) */ + switch (nau8325->vref_impedance_ohms) { + case 0: + regmap_update_bits(regmap, NAU8325_R60_BIAS_ADJ, + NAU8325_BIAS_VMID_SEL_MASK, 0 << NAU8325_BIAS_VMID_SEL_SFT); + break; + case 25000: + regmap_update_bits(regmap, NAU8325_R60_BIAS_ADJ, + NAU8325_BIAS_VMID_SEL_MASK, 1 << NAU8325_BIAS_VMID_SEL_SFT); + break; + case 125000: + regmap_update_bits(regmap, NAU8325_R60_BIAS_ADJ, + NAU8325_BIAS_VMID_SEL_MASK, 2 << NAU8325_BIAS_VMID_SEL_SFT); + break; + case 2500: + regmap_update_bits(regmap, NAU8325_R60_BIAS_ADJ, + NAU8325_BIAS_VMID_SEL_MASK, 3 << NAU8325_BIAS_VMID_SEL_SFT); + break; + default: + dev_dbg(dev, "Invalid vref-impedance-ohms %d", nau8325->vref_impedance_ohms); + } + + + /* enable VMID, BIAS, DAC, DCA CLOCK, Voltage/Current Amps + */ + regmap_update_bits(regmap, NAU8325_R61_ANALOG_CONTROL_1, + NAU8325_DACEN_MASK | NAU8325_DACCLKEN_MASK | + NAU8325_DACEN_R_MASK | NAU8325_DACCLKEN_R_MASK | + NAU8325_CLASSDEN_MASK | NAU8325_VMDFSTENB_MASK | + NAU8325_BIASEN_MASK | NAU8325_VMIDEN_MASK, + (0x1 << NAU8325_DACEN_SFT) | + (0x1 << NAU8325_DACCLKEN_SFT) | + (0x1 << NAU8325_DACEN_R_SFT) | + (0x1 << NAU8325_DACCLKEN_R_SFT) | + (0x1 << NAU8325_CLASSDEN_SFT) | + (0x1 << NAU8325_VMDFSTENB_SFT) | + (0x1 << NAU8325_BIASEN_SFT) | 0x3); + + /* Enable ALC to avoid signal distortion when battery low. */ + if (nau8325->alc_enable) + regmap_update_bits(regmap, NAU8325_R2E_ALC_CTRL3, + NAU8325_ALC_EN, NAU8325_ALC_EN); + if (nau8325->clock_det_data) + regmap_update_bits(regmap, NAU8325_R40_CLK_DET_CTRL, + NAU8325_APWRUP_EN, NAU8325_APWRUP_EN); + else + regmap_update_bits(regmap, NAU8325_R40_CLK_DET_CTRL, + NAU8325_APWRUP_EN, 0); + if (nau8325->clock_detection) + regmap_update_bits(regmap, NAU8325_R40_CLK_DET_CTRL, + NAU8325_CLKPWRUP_DIS | + NAU8325_PWRUP_DFT, 0); + else + regmap_update_bits(regmap, NAU8325_R40_CLK_DET_CTRL, + NAU8325_CLKPWRUP_DIS | NAU8325_PWRUP_DFT, + NAU8325_CLKPWRUP_DIS); + regmap_update_bits(regmap, NAU8325_R29_DAC_CTRL1, + NAU8325_DAC_OVERSAMPLE_MASK, + NAU8325_DAC_OVERSAMPLE_128); +} + +static void nau8325_print_device_properties(struct nau8325 *nau8325) +{ + struct device *dev = nau8325->dev; + + dev_dbg(dev, "vref-impedance-ohms: %d", nau8325->vref_impedance_ohms); + dev_dbg(dev, "dac-vref-microvolt: %d", nau8325->dac_vref_microvolt); + dev_dbg(dev, "alc-enable: %d", nau8325->alc_enable); + dev_dbg(dev, "clock-det-data: %d", nau8325->clock_det_data); + dev_dbg(dev, "clock-detection-disable: %d", nau8325->clock_detection); +} + +static int nau8325_read_device_properties(struct device *dev, + struct nau8325 *nau8325) +{ + int ret; + + nau8325->alc_enable = + device_property_read_bool(dev, "nuvoton,alc-enable"); + nau8325->clock_det_data = + device_property_read_bool(dev, "nuvoton,clock-det-data"); + nau8325->clock_detection = + !device_property_read_bool(dev, "nuvoton,clock-detection-disable"); + + ret = device_property_read_u32(dev, "nuvoton,vref-impedance-ohms", + &nau8325->vref_impedance_ohms); + if (ret) + nau8325->vref_impedance_ohms = 125000; + ret = device_property_read_u32(dev, "nuvoton,dac-vref-microvolt", + &nau8325->dac_vref_microvolt); + if (ret) + nau8325->dac_vref_microvolt = 2880000; + + return 0; +} + +static int nau8325_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct device *dev = &i2c->dev; + struct nau8325 *nau8325 = dev_get_platdata(dev); + int ret, value; + + if (!nau8325) { + nau8325 = devm_kzalloc(dev, sizeof(*nau8325), GFP_KERNEL); + if (!nau8325) { + ret = -ENOMEM; + goto err; + } + ret = nau8325_read_device_properties(dev, nau8325); + if (ret) + goto err; + } + i2c_set_clientdata(i2c, nau8325); + + nau8325->regmap = devm_regmap_init_i2c(i2c, &nau8325_regmap_config); + if (IS_ERR(nau8325->regmap)) { + ret = PTR_ERR(nau8325->regmap); + goto err; + } + nau8325->dev = dev; + nau8325_print_device_properties(nau8325); + + nau8325_reset_chip(nau8325->regmap); + ret = regmap_read(nau8325->regmap, NAU8325_R02_DEVICE_ID, &value); + if (ret) { + dev_dbg(dev, "Failed to read device id (%d)", ret); + goto err; + } + nau8325_init_regs(nau8325); + + ret = devm_snd_soc_register_component(dev, &nau8325_component_driver, + &nau8325_dai, 1); +err: + return ret; +} + +static const struct i2c_device_id nau8325_i2c_ids[] = { + { "nau8325", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, nau8325_i2c_ids); + +#ifdef CONFIG_OF +static const struct of_device_id nau8325_of_ids[] = { + { .compatible = "nuvoton,nau8325", }, + {} +}; +MODULE_DEVICE_TABLE(of, nau8325_of_ids); +#endif + +static struct i2c_driver nau8325_i2c_driver = { + .driver = { + .name = "nau8325", + .of_match_table = of_match_ptr(nau8325_of_ids), + }, + .probe = nau8325_i2c_probe, + .id_table = nau8325_i2c_ids, +}; +module_i2c_driver(nau8325_i2c_driver); + +MODULE_DESCRIPTION("ASoC NAU8325 driver"); +MODULE_AUTHOR("Seven Lee WTLI@nuvoton.com"); +MODULE_AUTHOR("David Lin CTLIN0@nuvoton.com"); +MODULE_LICENSE("GPL"); diff --git a/sound/soc/codecs/nau8325.h b/sound/soc/codecs/nau8325.h new file mode 100644 index 000000000000..0d173b66a4d4 --- /dev/null +++ b/sound/soc/codecs/nau8325.h @@ -0,0 +1,391 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * nau8325.h -- Nuvoton NAU8325 audio codec driver + * + * Copyright 2023 Nuvoton Technology Crop. + * Author: Seven Lee WTLI@nuvoton.com + * David Lin CTLIN0@nuvoton.com + */ + +#ifndef __NAU8325_H__ +#define __NAU8325_H__ + +#define NAU8325_R00_HARDWARE_RST 0x00 +#define NAU8325_R01_SOFTWARE_RST 0x01 +#define NAU8325_R02_DEVICE_ID 0x02 +#define NAU8325_R03_CLK_CTRL 0x03 +#define NAU8325_R04_ENA_CTRL 0x04 +#define NAU8325_R05_INTERRUPT_CTRL 0x05 +#define NAU8325_R06_INT_CLR_STATUS 0x06 +#define NAU8325_R09_IRQOUT 0x09 +#define NAU8325_R0A_IO_CTRL 0x0a +#define NAU8325_R0B_PDM_CTRL 0x0b +#define NAU8325_R0C_TDM_CTRL 0x0c +#define NAU8325_R0D_I2S_PCM_CTRL1 0x0d +#define NAU8325_R0E_I2S_PCM_CTRL2 0x0e +#define NAU8325_R0F_L_TIME_SLOT 0x0f +#define NAU8325_R10_R_TIME_SLOT 0x10 +#define NAU8325_R11_HPF_CTRL 0x11 +#define NAU8325_R12_MUTE_CTRL 0x12 +#define NAU8325_R13_DAC_VOLUME 0x13 +#define NAU8325_R1D_DEBUG_READ1 0x1d +#define NAU8325_R1F_DEBUG_READ2 0x1f +#define NAU8325_R22_DEBUG_READ3 0x22 +#define NAU8325_R29_DAC_CTRL1 0x29 +#define NAU8325_R2A_DAC_CTRL2 0x2a +#define NAU8325_R2C_ALC_CTRL1 0x2c +#define NAU8325_R2D_ALC_CTRL2 0x2d +#define NAU8325_R2E_ALC_CTRL3 0x2e +#define NAU8325_R2F_ALC_CTRL4 0x2f +#define NAU8325_R40_CLK_DET_CTRL 0x40 +#define NAU8325_R49_TEST_STATUS 0x49 +#define NAU8325_R4A_ANALOG_READ 0x4a +#define NAU8325_R50_MIXER_CTRL 0x50 +#define NAU8325_R55_MISC_CTRL 0x55 +#define NAU8325_R60_BIAS_ADJ 0x60 +#define NAU8325_R61_ANALOG_CONTROL_1 0x61 +#define NAU8325_R62_ANALOG_CONTROL_2 0x62 +#define NAU8325_R63_ANALOG_CONTROL_3 0x63 +#define NAU8325_R64_ANALOG_CONTROL_4 0x64 +#define NAU8325_R65_ANALOG_CONTROL_5 0x65 +#define NAU8325_R66_ANALOG_CONTROL_6 0x66 +#define NAU8325_R69_CLIP_CTRL 0x69 +#define NAU8325_R73_RDAC 0x73 +#define NAU8325_REG_MAX NAU8325_R73_RDAC + +/* 16-bit control register address, and 16-bits control register data */ +#define NAU8325_REG_ADDR_LEN 16 +#define NAU8325_REG_DATA_LEN 16 + +/* CLK_CTRL (0x03) */ +#define NAU8325_CLK_DAC_SRC_SFT 12 +#define NAU8325_CLK_DAC_SRC_MASK (0x3 << NAU8325_CLK_DAC_SRC_SFT) +#define NAU8325_CLK_MUL_SRC_SFT 6 +#define NAU8325_CLK_MUL_SRC_MASK (0x3 << NAU8325_CLK_MUL_SRC_SFT) +#define NAU8325_MCLK_SEL_SFT 3 +#define NAU8325_MCLK_SEL_MASK (0x7 << NAU8325_MCLK_SEL_SFT) +#define NAU8325_MCLK_SRC_MASK 0x7 + +/* ENA_CTRL (0x04) */ +#define NAU8325_DAC_LEFT_CH_EN_SFT 3 +#define NAU8325_DAC_LEFT_CH_EN (0x1 << NAU8325_DAC_LEFT_CH_EN_SFT) +#define NAU8325_DAC_RIGHT_CH_EN_SFT 2 +#define NAU8325_DAC_RIGHT_CH_EN (0x1 << NAU8325_DAC_RIGHT_CH_EN_SFT) + +/* INTERRUPT_CTRL (0x05) */ +#define NAU8325_ARP_DWN_INT_SFT 12 +#define NAU8325_ARP_DWN_INT_MASK (0x1 << NAU8325_ARP_DWN_INT_SFT) +#define NAU8325_CLIP_INT_SFT 11 +#define NAU8325_CLIP_INT_MASK (0x1 << NAU8325_CLIP_INT_SFT) +#define NAU8325_LVD_INT_SFT 10 +#define NAU8325_LVD_INT_MASK (0x1 << NAU8325_LVD_INT_SFT) +#define NAU8325_PWR_INT_DIS_SFT 8 +#define NAU8325_PWR_INT_DIS (0x1 << NAU8325_PWR_INT_DIS_SFT) +#define NAU8325_OCP_OTP_SHTDWN_INT_SFT 4 +#define NAU8325_OCP_OTP_SHTDWN_INT_MASK (0x1 << NAU8325_OCP_OTP_SHTDWN_INT_SFT) +#define NAU8325_CLIP_INT_DIS_SFT 3 +#define NAU8325_CLIP_INT_DIS (0x1 << NAU8325_CLIP_INT_DIS_SFT) +#define NAU8325_LVD_INT_DIS_SFT 2 +#define NAU8325_LVD_INT_DIS (0x1 << NAU8325_LVD_INT_DIS_SFT) +#define NAU8325_PWR_INT_MASK 0x1 + +/* INT_CLR_STATUS (0x06) */ +#define NAU8325_INT_STATUS_MASK 0x7f + +/* IRQOUT (0x9) */ +#define NAU8325_IRQOUT_SEL_SEF 12 +#define NAU8325_IRQOUT_SEL_MASK (0xf << NAU8325_IRQOUT_SEL_SEF) +#define NAU8325_DEM_DITH_SFT 7 +#define NAU8325_DEM_DITH_EN (0x1 << NAU8325_DEM_DITH_SFT) +#define NAU8325_GAINZI3_SFT 5 +#define NAU8325_GAINZI3_MASK (0x1 << NAU8325_GAINZI3_SFT) +#define NAU8325_GAINZI2_MASK 0x1f + +/* IO_CTRL (0x0a) */ +#define NAU8325_IRQ_PL_SFT 15 +#define NAU8325_IRQ_PL_ACT_HIGH (0x1 << NAU8325_IRQ_PL_SFT) +#define NAU8325_IRQ_PS_SFT 14 +#define NAU8325_IRQ_PS_UP (0x1 << NAU8325_IRQ_PS_SFT) +#define NAU8325_IRQ_PE_SFT 13 +#define NAU8325_IRQ_PE_EN (0x1 << NAU8325_IRQ_PE_SFT) +#define NAU8325_IRQ_DS_SFT 12 +#define NAU8325_IRQ_DS_HIGH (0x1 << NAU8325_IRQ_DS_SFT) +#define NAU8325_IRQ_OUTPUT_SFT 11 +#define NAU8325_IRQ_OUTPUT_EN (0x1 << NAU8325_IRQ_OUTPUT_SFT) +#define NAU8325_IRQ_PIN_DEBUG_SFT 10 +#define NAU8325_IRQ_PIN_DEBUG_EN (0x1 << NAU8325_IRQ_PIN_DEBUG_SFT) + +/* PDM_CTRL (0x0b) */ +#define NAU8325_PDM_LCH_EDGE_SFT 1 +#define NAU8325_PDM_LCH_EDGE__MASK (0x1 << NAU8325_PDM_LCH_EDGE_SFT) +#define NAU8325_PDM_MODE_EN 0x1 + +/* TDM_CTRL (0x0c) */ +#define NAU8325_TDM_SFT 15 +#define NAU8325_TDM_EN (0x1 << NAU8325_TDM_SFT) +#define NAU8325_PCM_OFFSET_CTRL_SFT 14 +#define NAU8325_PCM_OFFSET_CTRL_EN (0x1 << NAU8325_PCM_OFFSET_CTRL_SFT) +#define NAU8325_DAC_LEFT_SFT 6 +#define NAU8325_NAU8325_DAC_LEFT_MASK (0x7 << NAU8325_DAC_LEFT_SFT) +#define NAU8325_DAC_RIGHT_SFT 3 +#define NAU8325_DAC_RIGHT_MASK (0x7 << NAU8325_DAC_RIGHT_SFT) + +/* I2S_PCM_CTRL1 (0x0d) */ +#define NAU8325_DACCM_CTL_SFT 14 +#define NAU8325_DACCM_CTL_MASK (0x3 << NAU8325_DACCM_CTL_SFT) +#define NAU8325_CMB8_0_SFT 10 +#define NAU8325_CMB8_0_MASK (0x1 << NAU8325_CMB8_0_SFT) +#define NAU8325_UA_OFFSET_SFT 9 +#define NAU8325_UA_OFFSET_MASK (0x1 << NAU8325_UA_OFFSET_SFT) +#define NAU8325_I2S_BP_SFT 7 +#define NAU8325_I2S_BP_MASK (0x1 << NAU8325_I2S_BP_SFT) +#define NAU8325_I2S_BP_INV (0x1 << NAU8325_I2S_BP_SFT) +#define NAU8325_I2S_PCMB_SFT 6 +#define NAU8325_I2S_PCMB_EN (0x1 << NAU8325_I2S_PCMB_SFT) +#define NAU8325_I2S_DACPSHS0_SFT 5 +#define NAU8325_I2S_DACPSHS0_MASK (0x1 << NAU8325_I2S_DACPSHS0_SFT) +#define NAU8325_I2S_DL_SFT 2 +#define NAU8325_I2S_DL_MASK (0x3 << NAU8325_I2S_DL_SFT) +#define NAU8325_I2S_DL_32 (0x3 << NAU8325_I2S_DL_SFT) +#define NAU8325_I2S_DL_24 (0x2 << NAU8325_I2S_DL_SFT) +#define NAU8325_I2S_DL_20 (0x1 << NAU8325_I2S_DL_SFT) +#define NAU8325_I2S_DL_16 (0x0 << NAU8325_I2S_DL_SFT) +#define NAU8325_I2S_DF_MASK 0x3 +#define NAU8325_I2S_DF_RIGTH 0x0 +#define NAU8325_I2S_DF_LEFT 0x1 +#define NAU8325_I2S_DF_I2S 0x2 +#define NAU8325_I2S_DF_PCM_AB 0x3 + +/* I2S_PCM_CTRL2 (0x0e) */ +#define NAU8325_PCM_TS_SFT 10 +#define NAU8325_PCM_TS_EN (0x1 << NAU8325_PCM_TS_SFT) +#define NAU8325_PCM8BIT0_SFT 8 +#define NAU8325_PCM8BIT0_MASK (0x1 << NAU8325_PCM8BIT0_SFT) + +/* L_TIME_SLOT (0x0f)*/ +#define NAU8325_SHORT_FS_DET_SFT 13 +#define NAU8325_SHORT_FS_DET_DIS (0x1 << NAU8325_SHORT_FS_DET_SFT) +#define NAU8325_TSLOT_L0_MASK 0x3ff + +/* R_TIME_SLOT (0x10)*/ +#define NAU8325_TSLOT_R0_MASK 0x3ff + +/* HPF_CTRL (0x11)*/ +#define NAU8325_DAC_HPF_SFT 15 +#define NAU8325_DAC_HPF_EN (0x1 << NAU8325_DAC_HPF_SFT) +#define NAU8325_DAC_HPF_APP_SFT 14 +#define NAU8325_DAC_HPF_APP_MASK (0x1 << NAU8325_DAC_HPF_APP_SFT) +#define NAU8325_DAC_HPF_FCUT_SFT 11 +#define NAU8325_DAC_HPF_FCUT_MASK (0x7 << NAU8325_DAC_HPF_FCUT_SFT) + +/* MUTE_CTRL (0x12)*/ +#define NAU8325_SOFT_MUTE_SFT 15 +#define NAU8325_SOFT_MUTE (0x1 << NAU8325_SOFT_MUTE_SFT) +#define NAU8325_DAC_ZC_SFT 8 +#define NAU8325_DAC_ZC_EN (0x1 << NAU8325_DAC_ZC_SFT) +#define NAU8325_UNMUTE_CTL_SFT 6 +#define NAU8325_UNMUTE_CTL_MASK (0x3 << NAU8325_UNMUTE_CTL_SFT) +#define NAU8325_ANA_MUTE_SFT 4 +#define NAU8325_ANA_MUTE_MASK (0x3 << NAU8325_ANA_MUTE_SFT) +#define NAU8325_AUTO_MUTE_SFT 3 +#define NAU8325_AUTO_MUTE_DIS (0x1 << NAU8325_AUTO_MUTE_SFT) + +/* DAC_VOLUME (0x13) */ +#define NAU8325_DAC_VOLUME_L_SFT 8 +#define NAU8325_DAC_VOLUME_L_EN (0xff << NAU8325_DAC_VOLUME_L_SFT) +#define NAU8325_DAC_VOLUME_R_SFT 0 +#define NAU8325_DAC_VOLUME_R_EN (0xff << NAU8325_DAC_VOLUME_R_SFT) +#define NAU8325_DAC_VOL_MAX 0xff + +/* DEBUG_READ1 (0x1d)*/ +#define NAU8325_OSR100_MASK (0x1 << 6) +#define NAU8325_MIPS500_MASK (0x1 << 5) +#define NAU8325_SHUTDWNDRVR_R_MASK (0x1 << 4) +#define NAU8325_SHUTDWNDRVR_L_MASK (0x1 << 3) +#define NAU8325_MUTEB_MASK (0x1 << 2) +#define NAU8325_PDOSCB_MASK (0x1 << 1) +#define NAU8325_POWERDOWN1B_D_MASK 0x1 + +/* DEBUG_READ2 (0x1f)*/ +#define NAU8325_R_CHANNEL_Vol_SFT 8 +#define NAU8325_R_CHANNEL_Vol_MASK (0xff << NAU8325_R_CHANNEL_Vol_SFT) +#define NAU8325_L_CHANNEL_Vol_MASK 0xff + +/* DEBUG_READ3(0x22)*/ +#define NAU8325_PGAL_GAIN_MASK (0x3f << 7) +#define NAU8325_CLIP_MASK (0x1 << 6) +#define NAU8325_SCAN_MODE_MASK (0x1 << 5) +#define NAU8325_SDB_MASK (0x1 << 4) +#define NAU8325_TALARM_MASK (0x1 << 3) +#define NAU8325_SHORTR_MASK (0x1 << 2) +#define NAU8325_SHORTL_MASK (0x1 << 1) +#define NAU8325_TMDET_MASK 0x1 + +/* DAC_CTRL1 (0x29) */ +#define NAU8325_DAC_OVERSAMPLE_SFT 0 +#define NAU8325_DAC_OVERSAMPLE_MASK 0x7 +#define NAU8325_DAC_OVERSAMPLE_256 1 +#define NAU8325_DAC_OVERSAMPLE_128 2 +#define NAU8325_DAC_OVERSAMPLE_64 0 +#define NAU8325_DAC_OVERSAMPLE_32 4 + +/* ALC_CTRL1 (0x2c) */ +#define NAU8325_ALC_MAXGAIN_SFT 5 +#define NAU8325_ALC_MAXGAIN_MAX 0x7 +#define NAU8325_ALC_MAXGAIN_MASK (0x7 << NAU8325_ALC_MAXGAIN_SFT) +#define NAU8325_ALC_MINGAIN_MAX 4 +#define NAU8325_ALC_MINGAIN_SFT 1 +#define NAU8325_ALC_MINGAIN_MASK (0x7 << NAU8325_ALC_MINGAIN_SFT) + +/* ALC_CTRL2 (0x2d) */ +#define NAU8325_ALC_DCY_SFT 12 +#define NAU8325_ALC_DCY_MAX 0xb +#define NAU8325_ALC_DCY_MASK (0xf << NAU8325_ALC_DCY_SFT) +#define NAU8325_ALC_ATK_SFT 8 +#define NAU8325_ALC_ATK_MAX 0xb +#define NAU8325_ALC_ATK_MASK (0xf << NAU8325_ALC_ATK_SFT) +#define NAU8325_ALC_HLD_SFT 4 +#define NAU8325_ALC_HLD_MAX 0xa +#define NAU8325_ALC_HLD_MASK (0xf << NAU8325_ALC_HLD_SFT) +#define NAU8325_ALC_LVL_SFT 0 +#define NAU8325_ALC_LVL_MAX 0xf +#define NAU8325_ALC_LVL_MASK 0xf + +/* ALC_CTRL3 (0x2e) */ +#define NAU8325_ALC_EN_SFT 15 +#define NAU8325_ALC_EN (0x1 << NAU8325_ALC_EN_SFT) + +/* TEMP_COMP_CTRL (0x30) */ +#define NAU8325_TEMP_COMP_ACT2_MASK 0xff + +/* LPF_CTRL (0x33) */ +#define NAU8325_LPF_IN1_EN_SFT 15 +#define NAU8325_LPF_IN1_EN (0x1 << NAU8325_LPF_IN1_EN_SFT) +#define NAU8325_LPF_IN1_TC_SFT 11 +#define NAU8325_LPF_IN1_TC_MASK (0xf << NAU8325_LPF_IN1_TC_SFT) +#define NAU8325_LPF_IN2_EN_SFT 10 +#define NAU8325_LPF_IN2_EN (0x1 << NAU8325_LPF_IN2_EN_SFT) +#define NAU8325_LPF_IN2_TC_SFT 6 +#define NAU8325_LPF_IN2_TC_MASK (0xf << NAU8325_LPF_IN2_TC_SFT) + +/* CLK_DET_CTRL (0x40) */ +#define NAU8325_APWRUP_SFT 15 +#define NAU8325_APWRUP_EN (0x1 << NAU8325_APWRUP_SFT) +#define NAU8325_CLKPWRUP_SFT 14 +#define NAU8325_CLKPWRUP_DIS (0x1 << NAU8325_CLKPWRUP_SFT) +#define NAU8325_PWRUP_DFT_SFT 13 +#define NAU8325_PWRUP_DFT (0x1 << NAU8325_PWRUP_DFT_SFT) +#define NAU8325_REG_SRATE_SFT 10 +#define NAU8325_REG_SRATE_MASK (0x7 << NAU8325_REG_SRATE_SFT) +#define NAU8325_REG_ALT_SRATE_SFT 9 +#define NAU8325_REG_ALT_SRATE_EN (0x1 << NAU8325_REG_ALT_SRATE_SFT) +#define NAU8325_REG_DIV_MAX 0x1 + +/* BIAS_ADJ (0x60) */ +#define NAU8325_BIAS_VMID_SEL_SFT 4 +#define NAU8325_BIAS_VMID_SEL_MASK (0x3 << NAU8325_BIAS_VMID_SEL_SFT) + +/* ANALOG_CONTROL_1 (0x61) */ +#define NAU8325_VMDFSTENB_SFT 14 +#define NAU8325_VMDFSTENB_MASK (0x3 << NAU8325_VMDFSTENB_SFT) +#define NAU8325_CLASSDEN_SFT 12 +#define NAU8325_CLASSDEN_MASK (0x3 << NAU8325_CLASSDEN_SFT) +#define NAU8325_DACCLKEN_R_SFT 10 +#define NAU8325_DACCLKEN_R_MASK (0x3 << NAU8325_DACCLKEN_R_SFT) +#define NAU8325_DACEN_R_SFT 8 +#define NAU8325_DACEN_R_MASK (0x3 << NAU8325_DACEN_R_SFT) +#define NAU8325_DACCLKEN_SFT 6 +#define NAU8325_DACCLKEN_MASK (0x3 << NAU8325_DACCLKEN_SFT) +#define NAU8325_DACEN_SFT 4 +#define NAU8325_DACEN_MASK (0x3 << NAU8325_DACEN_SFT) +#define NAU8325_BIASEN_SFT 2 +#define NAU8325_BIASEN_MASK (0x3 << NAU8325_BIASEN_SFT) +#define NAU8325_VMIDEN_MASK 0x3 + +/* ANALOG_CONTROL_2 (0x62) */ +#define NAU8325_PWMMOD_SFT 14 +#define NAU8325_PWMMOD_MASK (0x1 << NAU8325_PWMMOD_SFT) +#define NAU8325_DACTEST_SFT 6 +#define NAU8325_DACTEST_MASK (0x3 << NAU8325_DACTEST_SFT) +#define NAU8325_DACREFCAP_SFT 4 +#define NAU8325_DACREFCAP_MASK (0x3 << NAU8325_DACREFCAP_SFT) + +/* ANALOG_CONTROL_3 (0x63) */ +#define NAU8325_POWER_DOWN_L_SFT 12 +#define NAU8325_POWER_DOWN_L_MASK (0x3 << NAU8325_POWER_DOWN_L_SFT) +#define NAU8325_POWER_DOWN_R_SFT 11 +#define NAU8325_POWER_DOWN_R_MASK (0x3 << NAU8325_DACREFCAP_SFT) +#define NAU8325_CLASSD_FINE_SFT 5 +#define NAU8325_CLASSD_FINE_MASK (0x3 << NAU8325_CLASSD_FINE_SFT) +#define NAU8325_CLASSD_COARSE_GAIN_MASK 0xf + +/* ANALOG_CONTROL_4 (0x64) */ +#define NAU8325_CLASSD_OCPN_SFT 12 +#define NAU8325_CLASSD_OCPN_MASK (0xf << NAU8325_CLASSD_OCPN_SFT) +#define NAU8325_CLASSD_OCPP_SFT 8 +#define NAU8325_CLASSD_OCPP_MASK (0xf << NAU8325_CLASSD_OCPP_SFT) +#define NAU8325_CLASSD_SLEWN_MASK 0xff + +/* ANALOG_CONTROL_5 (0x65) */ +#define NAU8325_MCLK_RANGE_SFT 2 +#define NAU8325_MCLK_RANGE_EN (0x1 << NAU8325_MCLK_RANGE_SFT) +#define NAU8325_MCLK8XEN_SFT 1 +#define NAU8325_MCLK8XEN_EN (0x1 << NAU8325_MCLK8XEN_SFT) +#define NAU8325_MCLK4XEN_EN 0x1 + +/* ANALOG_CONTROL_6 (0x66) */ +#define NAU8325_VBATLOW_SFT 4 +#define NAU8325_VBATLOW_MASK (0x1 << NAU8325_VBATLOW_SFT) +#define NAU8325_VDDSPK_LIM_SFT 3 +#define NAU8325_VDDSPK_LIM_EN (0x1 << NAU8325_VDDSPK_LIM_SFT) +#define NAU8325_VDDSPK_LIM_MASK 0x7 + +/* CLIP_CTRL (0x69)*/ +#define NAU8325_ANTI_CLIP_SFT 4 +#define NAU8325_ANTI_CLIP_EN (0x1 << NAU8325_ANTI_CLIP_SFT) + +/* RDAC (0x73) */ +#define NAU8325_CLK_DAC_DELAY_SFT 4 +#define NAU8325_CLK_DAC_DELAY_EN (0x7 << NAU8325_CLK_DAC_DELAY_SFT) +#define NAU8325_DACVREFSEL_SFT 2 +#define NAU8325_DACVREFSEL_MASK (0x3 << NAU8325_DACVREFSEL_SFT) + +#define NAU8325_CODEC_DAI "nau8325-hifi" + +struct nau8325 { + struct device *dev; + struct regmap *regmap; + int mclk; + int fs; + int vref_impedance_ohms; + int dac_vref_microvolt; + int clock_detection; + int clock_det_data; + int alc_enable; +}; + +struct nau8325_src_attr { + int param; + unsigned int val; +}; + +enum { + NAU8325_MCLK_FS_RATIO_256, + NAU8325_MCLK_FS_RATIO_400, + NAU8325_MCLK_FS_RATIO_500, + NAU8325_MCLK_FS_RATIO_NUM, +}; + +struct nau8325_srate_attr { + int fs; + int range; + bool max; + unsigned int mclk_src[NAU8325_MCLK_FS_RATIO_NUM]; +}; + +struct nau8325_osr_attr { + unsigned int osr; + unsigned int clk_src; +}; + +#endif /* __NAU8325_H__ */