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// SPDX-License-Identifier: GPL-2.0
//
// PCM3060 codec driver
//
// Copyright (C) 2018 Kirill Marinushkin <kmarinushkin@birdec.tech>
#include <linux/module.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include "pcm3060.h"
/* dai */
static int pcm3060_set_sysclk(struct snd_soc_dai *dai, int clk_id,
unsigned int freq, int dir)
{
struct snd_soc_component *comp = dai->component;
struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp);
if (dir != SND_SOC_CLOCK_IN) {
dev_err(comp->dev, "unsupported sysclock dir: %d\n", dir);
return -EINVAL;
}
priv->dai[dai->id].sclk_freq = freq;
return 0;
}
static int pcm3060_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct snd_soc_component *comp = dai->component;
struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp);
unsigned int reg;
unsigned int val;
if ((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_NF) {
dev_err(comp->dev, "unsupported DAI polarity: 0x%x\n", fmt);
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM:
priv->dai[dai->id].is_master = true;
break;
case SND_SOC_DAIFMT_CBS_CFS:
priv->dai[dai->id].is_master = false;
break;
default:
dev_err(comp->dev, "unsupported DAI master mode: 0x%x\n", fmt);
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
val = PCM3060_REG_FMT_I2S;
break;
case SND_SOC_DAIFMT_RIGHT_J:
val = PCM3060_REG_FMT_RJ;
break;
case SND_SOC_DAIFMT_LEFT_J:
val = PCM3060_REG_FMT_LJ;
break;
default:
dev_err(comp->dev, "unsupported DAI format: 0x%x\n", fmt);
return -EINVAL;
}
if (dai->id == PCM3060_DAI_ID_DAC)
reg = PCM3060_REG67;
else
reg = PCM3060_REG72;
regmap_update_bits(priv->regmap, reg, PCM3060_REG_MASK_FMT, val);
return 0;
}
static int pcm3060_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct snd_soc_component *comp = dai->component;
struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp);
unsigned int rate;
unsigned int ratio;
unsigned int reg;
unsigned int val;
if (!priv->dai[dai->id].is_master) {
val = PCM3060_REG_MS_S;
goto val_ready;
}
rate = params_rate(params);
if (!rate) {
dev_err(comp->dev, "rate is not configured\n");
return -EINVAL;
}
ratio = priv->dai[dai->id].sclk_freq / rate;
switch (ratio) {
case 768:
val = PCM3060_REG_MS_M768;
break;
case 512:
val = PCM3060_REG_MS_M512;
break;
case 384:
val = PCM3060_REG_MS_M384;
break;
case 256:
val = PCM3060_REG_MS_M256;
break;
case 192:
val = PCM3060_REG_MS_M192;
break;
case 128:
val = PCM3060_REG_MS_M128;
break;
default:
dev_err(comp->dev, "unsupported ratio: %d\n", ratio);
return -EINVAL;
}
val_ready:
if (dai->id == PCM3060_DAI_ID_DAC)
reg = PCM3060_REG67;
else
reg = PCM3060_REG72;
regmap_update_bits(priv->regmap, reg, PCM3060_REG_MASK_MS, val);
return 0;
}
static const struct snd_soc_dai_ops pcm3060_dai_ops = {
.set_sysclk = pcm3060_set_sysclk,
.set_fmt = pcm3060_set_fmt,
.hw_params = pcm3060_hw_params,
};
#define PCM3060_DAI_RATES_ADC (SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_32000 | \
SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | \
SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
#define PCM3060_DAI_RATES_DAC (PCM3060_DAI_RATES_ADC | \
SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000)
static struct snd_soc_dai_driver pcm3060_dai[] = {
{
.name = "pcm3060-dac",
.id = PCM3060_DAI_ID_DAC,
.playback = {
.stream_name = "Playback",
.channels_min = 2,
.channels_max = 2,
.rates = PCM3060_DAI_RATES_DAC,
.formats = SNDRV_PCM_FMTBIT_S24_LE,
},
.ops = &pcm3060_dai_ops,
},
{
.name = "pcm3060-adc",
.id = PCM3060_DAI_ID_ADC,
.capture = {
.stream_name = "Capture",
.channels_min = 2,
.channels_max = 2,
.rates = PCM3060_DAI_RATES_ADC,
.formats = SNDRV_PCM_FMTBIT_S24_LE,
},
.ops = &pcm3060_dai_ops,
},
};
/* dapm */
static DECLARE_TLV_DB_SCALE(pcm3060_dapm_tlv, -10050, 50, 1);
static const struct snd_kcontrol_new pcm3060_dapm_controls[] = {
SOC_DOUBLE_R_RANGE_TLV("Master Playback Volume",
PCM3060_REG65, PCM3060_REG66, 0,
PCM3060_REG_AT2_MIN, PCM3060_REG_AT2_MAX,
0, pcm3060_dapm_tlv),
SOC_DOUBLE("Master Playback Switch", PCM3060_REG68,
PCM3060_REG_SHIFT_MUT21, PCM3060_REG_SHIFT_MUT22, 1, 1),
SOC_DOUBLE_R_RANGE_TLV("Master Capture Volume",
PCM3060_REG70, PCM3060_REG71, 0,
PCM3060_REG_AT1_MIN, PCM3060_REG_AT1_MAX,
0, pcm3060_dapm_tlv),
SOC_DOUBLE("Master Capture Switch", PCM3060_REG73,
PCM3060_REG_SHIFT_MUT11, PCM3060_REG_SHIFT_MUT12, 1, 1),
};
static const struct snd_soc_dapm_widget pcm3060_dapm_widgets[] = {
SND_SOC_DAPM_OUTPUT("OUTL"),
SND_SOC_DAPM_OUTPUT("OUTR"),
SND_SOC_DAPM_INPUT("INL"),
SND_SOC_DAPM_INPUT("INR"),
};
static const struct snd_soc_dapm_route pcm3060_dapm_map[] = {
{ "OUTL", NULL, "Playback" },
{ "OUTR", NULL, "Playback" },
{ "Capture", NULL, "INL" },
{ "Capture", NULL, "INR" },
};
/* soc component */
static const struct snd_soc_component_driver pcm3060_soc_comp_driver = {
.controls = pcm3060_dapm_controls,
.num_controls = ARRAY_SIZE(pcm3060_dapm_controls),
.dapm_widgets = pcm3060_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(pcm3060_dapm_widgets),
.dapm_routes = pcm3060_dapm_map,
.num_dapm_routes = ARRAY_SIZE(pcm3060_dapm_map),
};
/* regmap */
static bool pcm3060_reg_writeable(struct device *dev, unsigned int reg)
{
return (reg >= PCM3060_REG64);
}
static bool pcm3060_reg_readable(struct device *dev, unsigned int reg)
{
return (reg >= PCM3060_REG64);
}
static bool pcm3060_reg_volatile(struct device *dev, unsigned int reg)
{
/* PCM3060_REG64 is volatile */
return (reg == PCM3060_REG64);
}
static const struct reg_default pcm3060_reg_defaults[] = {
{ PCM3060_REG64, 0xF0 },
{ PCM3060_REG65, 0xFF },
{ PCM3060_REG66, 0xFF },
{ PCM3060_REG67, 0x00 },
{ PCM3060_REG68, 0x00 },
{ PCM3060_REG69, 0x00 },
{ PCM3060_REG70, 0xD7 },
{ PCM3060_REG71, 0xD7 },
{ PCM3060_REG72, 0x00 },
{ PCM3060_REG73, 0x00 },
};
const struct regmap_config pcm3060_regmap = {
.reg_bits = 8,
.val_bits = 8,
.writeable_reg = pcm3060_reg_writeable,
.readable_reg = pcm3060_reg_readable,
.volatile_reg = pcm3060_reg_volatile,
.max_register = PCM3060_REG73,
.reg_defaults = pcm3060_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(pcm3060_reg_defaults),
.cache_type = REGCACHE_RBTREE,
};
EXPORT_SYMBOL(pcm3060_regmap);
/* device */
int pcm3060_probe(struct device *dev)
{
int rc;
rc = devm_snd_soc_register_component(dev, &pcm3060_soc_comp_driver,
pcm3060_dai,
ARRAY_SIZE(pcm3060_dai));
if (rc) {
dev_err(dev, "failed to register component, rc=%d\n", rc);
return rc;
}
return 0;
}
EXPORT_SYMBOL(pcm3060_probe);
MODULE_DESCRIPTION("PCM3060 codec driver");
MODULE_AUTHOR("Kirill Marinushkin <kmarinushkin@birdec.tech>");
MODULE_LICENSE("GPL v2");
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