// SPDX-License-Identifier: GPL-2.0-only
/*
* Driver of Inno codec for rk3036 by Rockchip Inc.
*
* Author: Rockchip Inc.
* Author: Zheng ShunQian<[email protected]>
*/
#include <sound/soc.h>
#include <sound/tlv.h>
#include <sound/soc-dapm.h>
#include <sound/soc-dai.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/clk.h>
#include <linux/regmap.h>
#include <linux/device.h>
#include <linux/mfd/syscon.h>
#include <linux/module.h>
#include <linux/io.h>
#include "inno_rk3036.h"
struct rk3036_codec_priv {
void __iomem *base;
struct clk *pclk;
struct regmap *regmap;
struct device *dev;
};
static const DECLARE_TLV_DB_MINMAX(rk3036_codec_hp_tlv, -39, 0);
static int rk3036_codec_antipop_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
uinfo->count = 2;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 1;
return 0;
}
static int rk3036_codec_antipop_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
int val, regval;
regval = snd_soc_component_read(component, INNO_R09);
val = ((regval >> INNO_R09_HPL_ANITPOP_SHIFT) &
INNO_R09_HP_ANTIPOP_MSK) == INNO_R09_HP_ANTIPOP_ON;
ucontrol->value.integer.value[0] = val;
val = ((regval >> INNO_R09_HPR_ANITPOP_SHIFT) &
INNO_R09_HP_ANTIPOP_MSK) == INNO_R09_HP_ANTIPOP_ON;
ucontrol->value.integer.value[1] = val;
return 0;
}
static int rk3036_codec_antipop_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
int val, ret, regmsk;
val = (ucontrol->value.integer.value[0] ?
INNO_R09_HP_ANTIPOP_ON : INNO_R09_HP_ANTIPOP_OFF) <<
INNO_R09_HPL_ANITPOP_SHIFT;
val |= (ucontrol->value.integer.value[1] ?
INNO_R09_HP_ANTIPOP_ON : INNO_R09_HP_ANTIPOP_OFF) <<
INNO_R09_HPR_ANITPOP_SHIFT;
regmsk = INNO_R09_HP_ANTIPOP_MSK << INNO_R09_HPL_ANITPOP_SHIFT |
INNO_R09_HP_ANTIPOP_MSK << INNO_R09_HPR_ANITPOP_SHIFT;
ret = snd_soc_component_update_bits(component, INNO_R09,
regmsk, val);
if (ret < 0)
return ret;
return 0;
}
#define SOC_RK3036_CODEC_ANTIPOP_DECL(xname) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
.info = rk3036_codec_antipop_info, .get = rk3036_codec_antipop_get, \
.put = rk3036_codec_antipop_put, }
static const struct snd_kcontrol_new rk3036_codec_dapm_controls[] = {
SOC_DOUBLE_R_RANGE_TLV("Headphone Volume", INNO_R07, INNO_R08,
INNO_HP_GAIN_SHIFT, INNO_HP_GAIN_N39DB,
INNO_HP_GAIN_0DB, 0, rk3036_codec_hp_tlv),
SOC_DOUBLE("Zero Cross Switch", INNO_R06, INNO_R06_VOUTL_CZ_SHIFT,
INNO_R06_VOUTR_CZ_SHIFT, 1, 0),
SOC_DOUBLE("Headphone Switch", INNO_R09, INNO_R09_HPL_MUTE_SHIFT,
INNO_R09_HPR_MUTE_SHIFT, 1, 0),
SOC_RK3036_CODEC_ANTIPOP_DECL("Anti-pop Switch"),
};
static const struct snd_kcontrol_new rk3036_codec_hpl_mixer_controls[] = {
SOC_DAPM_SINGLE("DAC Left Out Switch", INNO_R09,
INNO_R09_DACL_SWITCH_SHIFT, 1, 0),
};
static const struct snd_kcontrol_new rk3036_codec_hpr_mixer_controls[] = {
SOC_DAPM_SINGLE("DAC Right Out Switch", INNO_R09,
INNO_R09_DACR_SWITCH_SHIFT, 1, 0),
};
static const struct snd_kcontrol_new rk3036_codec_hpl_switch_controls[] = {
SOC_DAPM_SINGLE("HP Left Out Switch", INNO_R05,
INNO_R05_HPL_WORK_SHIFT, 1, 0),
};
static const struct snd_kcontrol_new rk3036_codec_hpr_switch_controls[] = {
SOC_DAPM_SINGLE("HP Right Out Switch", INNO_R05,
INNO_R05_HPR_WORK_SHIFT, 1, 0),
};
static const struct snd_soc_dapm_widget rk3036_codec_dapm_widgets[] = {
SND_SOC_DAPM_SUPPLY_S("DAC PWR", 1, INNO_R06,
INNO_R06_DAC_EN_SHIFT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY_S("DACL VREF", 2, INNO_R04,
INNO_R04_DACL_VREF_SHIFT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY_S("DACR VREF", 2, INNO_R04,
INNO_R04_DACR_VREF_SHIFT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY_S("DACL HiLo VREF", 3, INNO_R06,
INNO_R06_DACL_HILO_VREF_SHIFT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY_S("DACR HiLo VREF", 3, INNO_R06,
INNO_R06_DACR_HILO_VREF_SHIFT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY_S("DACR CLK", 3, INNO_R04,
INNO_R04_DACR_CLK_SHIFT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY_S("DACL CLK", 3, INNO_R04,
INNO_R04_DACL_CLK_SHIFT, 0, NULL, 0),
SND_SOC_DAPM_DAC("DACL", "Left Playback", INNO_R04,
INNO_R04_DACL_SW_SHIFT, 0),
SND_SOC_DAPM_DAC("DACR", "Right Playback", INNO_R04,
INNO_R04_DACR_SW_SHIFT, 0),
SND_SOC_DAPM_MIXER("Left Headphone Mixer", SND_SOC_NOPM, 0, 0,
rk3036_codec_hpl_mixer_controls,
ARRAY_SIZE(rk3036_codec_hpl_mixer_controls)),
SND_SOC_DAPM_MIXER("Right Headphone Mixer", SND_SOC_NOPM, 0, 0,
rk3036_codec_hpr_mixer_controls,
ARRAY_SIZE(rk3036_codec_hpr_mixer_controls)),
SND_SOC_DAPM_PGA("HP Left Out", INNO_R05,
INNO_R05_HPL_EN_SHIFT, 0, NULL, 0),
SND_SOC_DAPM_PGA("HP Right Out", INNO_R05,
INNO_R05_HPR_EN_SHIFT, 0, NULL, 0),
SND_SOC_DAPM_MIXER("HP Left Switch", SND_SOC_NOPM, 0, 0,
rk3036_codec_hpl_switch_controls,
ARRAY_SIZE(rk3036_codec_hpl_switch_controls)),
SND_SOC_DAPM_MIXER("HP Right Switch", SND_SOC_NOPM, 0, 0,
rk3036_codec_hpr_switch_controls,
ARRAY_SIZE(rk3036_codec_hpr_switch_controls)),
SND_SOC_DAPM_OUTPUT("HPL"),
SND_SOC_DAPM_OUTPUT("HPR"),
};
static const struct snd_soc_dapm_route rk3036_codec_dapm_routes[] = {
{"DACL VREF", NULL, "DAC PWR"},
{"DACR VREF", NULL, "DAC PWR"},
{"DACL HiLo VREF", NULL, "DAC PWR"},
{"DACR HiLo VREF", NULL, "DAC PWR"},
{"DACL CLK", NULL, "DAC PWR"},
{"DACR CLK", NULL, "DAC PWR"},
{"DACL", NULL, "DACL VREF"},
{"DACL", NULL, "DACL HiLo VREF"},
{"DACL", NULL, "DACL CLK"},
{"DACR", NULL, "DACR VREF"},
{"DACR", NULL, "DACR HiLo VREF"},
{"DACR", NULL, "DACR CLK"},
{"Left Headphone Mixer", "DAC Left Out Switch", "DACL"},
{"Right Headphone Mixer", "DAC Right Out Switch", "DACR"},
{"HP Left Out", NULL, "Left Headphone Mixer"},
{"HP Right Out", NULL, "Right Headphone Mixer"},
{"HP Left Switch", "HP Left Out Switch", "HP Left Out"},
{"HP Right Switch", "HP Right Out Switch", "HP Right Out"},
{"HPL", NULL, "HP Left Switch"},
{"HPR", NULL, "HP Right Switch"},
};
static int rk3036_codec_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct snd_soc_component *component = dai->component;
unsigned int reg01_val = 0, reg02_val = 0, reg03_val = 0;
dev_dbg(component->dev, "rk3036_codec dai set fmt : %08x\n", fmt);
switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
case SND_SOC_DAIFMT_CBC_CFC:
reg01_val |= INNO_R01_PINDIR_IN_SLAVE |
INNO_R01_I2SMODE_SLAVE;
break;
case SND_SOC_DAIFMT_CBP_CFP:
reg01_val |= INNO_R01_PINDIR_OUT_MASTER |
INNO_R01_I2SMODE_MASTER;
break;
default:
dev_err(component->dev, "invalid fmt\n");
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_DSP_A:
reg02_val |= INNO_R02_DACM_PCM;
break;
case SND_SOC_DAIFMT_I2S:
reg02_val |= INNO_R02_DACM_I2S;
break;
case SND_SOC_DAIFMT_RIGHT_J:
reg02_val |= INNO_R02_DACM_RJM;
break;
case SND_SOC_DAIFMT_LEFT_J:
reg02_val |= INNO_R02_DACM_LJM;
break;
default:
dev_err(component->dev, "set dai format failed\n");
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
reg02_val |= INNO_R02_LRCP_NORMAL;
reg03_val |= INNO_R03_BCP_NORMAL;
break;
case SND_SOC_DAIFMT_IB_IF:
reg02_val |= INNO_R02_LRCP_REVERSAL;
reg03_val |= INNO_R03_BCP_REVERSAL;
break;
case SND_SOC_DAIFMT_IB_NF:
reg02_val |= INNO_R02_LRCP_REVERSAL;
reg03_val |= INNO_R03_BCP_NORMAL;
break;
case SND_SOC_DAIFMT_NB_IF:
reg02_val |= INNO_R02_LRCP_NORMAL;
reg03_val |= INNO_R03_BCP_REVERSAL;
break;
default:
dev_err(component->dev, "set dai format failed\n");
return -EINVAL;
}
snd_soc_component_update_bits(component, INNO_R01, INNO_R01_I2SMODE_MSK |
INNO_R01_PINDIR_MSK, reg01_val);
snd_soc_component_update_bits(component, INNO_R02, INNO_R02_LRCP_MSK |
INNO_R02_DACM_MSK, reg02_val);
snd_soc_component_update_bits(component, INNO_R03, INNO_R03_BCP_MSK, reg03_val);
return 0;
}
static int rk3036_codec_dai_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params,
struct snd_soc_dai *dai)
{
struct snd_soc_component *component = dai->component;
unsigned int reg02_val = 0, reg03_val = 0;
switch (params_format(hw_params)) {
case SNDRV_PCM_FORMAT_S16_LE:
reg02_val |= INNO_R02_VWL_16BIT;
break;
case SNDRV_PCM_FORMAT_S20_3LE:
reg02_val |= INNO_R02_VWL_20BIT;
break;
case SNDRV_PCM_FORMAT_S24_LE:
reg02_val |= INNO_R02_VWL_24BIT;
break;
case SNDRV_PCM_FORMAT_S32_LE:
reg02_val |= INNO_R02_VWL_32BIT;
break;
default:
return -EINVAL;
}
reg02_val |= INNO_R02_LRCP_NORMAL;
reg03_val |= INNO_R03_FWL_32BIT | INNO_R03_DACR_WORK;
snd_soc_component_update_bits(component, INNO_R02, INNO_R02_LRCP_MSK |
INNO_R02_VWL_MSK, reg02_val);
snd_soc_component_update_bits(component, INNO_R03, INNO_R03_DACR_MSK |
INNO_R03_FWL_MSK, reg03_val);
return 0;
}
#define RK3036_CODEC_RATES (SNDRV_PCM_RATE_8000 | \
SNDRV_PCM_RATE_16000 | \
SNDRV_PCM_RATE_32000 | \
SNDRV_PCM_RATE_44100 | \
SNDRV_PCM_RATE_48000 | \
SNDRV_PCM_RATE_96000)
#define RK3036_CODEC_FMTS (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 rk3036_codec_dai_ops = {
.set_fmt = rk3036_codec_dai_set_fmt,
.hw_params = rk3036_codec_dai_hw_params,
};
static struct snd_soc_dai_driver rk3036_codec_dai_driver[] = {
{
.name = "rk3036-codec-dai",
.playback = {
.stream_name = "Playback",
.channels_min = 1,
.channels_max = 2,
.rates = RK3036_CODEC_RATES,
.formats = RK3036_CODEC_FMTS,
},
.ops = &rk3036_codec_dai_ops,
.symmetric_rate = 1,
},
};
static void rk3036_codec_reset(struct snd_soc_component *component)
{
snd_soc_component_write(component, INNO_R00,
INNO_R00_CSR_RESET | INNO_R00_CDCR_RESET);
snd_soc_component_write(component, INNO_R00,
INNO_R00_CSR_WORK | INNO_R00_CDCR_WORK);
}
static int rk3036_codec_probe(struct snd_soc_component *component)
{
rk3036_codec_reset(component);
return 0;
}
static void rk3036_codec_remove(struct snd_soc_component *component)
{
rk3036_codec_reset(component);
}
static int rk3036_codec_set_bias_level(struct snd_soc_component *component,
enum snd_soc_bias_level level)
{
switch (level) {
case SND_SOC_BIAS_STANDBY:
/* set a big current for capacitor charging. */
snd_soc_component_write(component, INNO_R10, INNO_R10_MAX_CUR);
/* start precharge */
snd_soc_component_write(component, INNO_R06, INNO_R06_DAC_PRECHARGE);
break;
case SND_SOC_BIAS_OFF:
/* set a big current for capacitor discharging. */
snd_soc_component_write(component, INNO_R10, INNO_R10_MAX_CUR);
/* start discharge. */
snd_soc_component_write(component, INNO_R06, INNO_R06_DAC_DISCHARGE);
break;
default:
break;
}
return 0;
}
static const struct snd_soc_component_driver rk3036_codec_driver = {
.probe = rk3036_codec_probe,
.remove = rk3036_codec_remove,
.set_bias_level = rk3036_codec_set_bias_level,
.controls = rk3036_codec_dapm_controls,
.num_controls = ARRAY_SIZE(rk3036_codec_dapm_controls),
.dapm_routes = rk3036_codec_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(rk3036_codec_dapm_routes),
.dapm_widgets = rk3036_codec_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(rk3036_codec_dapm_widgets),
.idle_bias_on = 1,
.use_pmdown_time = 1,
.endianness = 1,
};
static const struct regmap_config rk3036_codec_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
};
#define GRF_SOC_CON0 0x00140
#define GRF_ACODEC_SEL (BIT(10) | BIT(16 + 10))
static int rk3036_codec_platform_probe(struct platform_device *pdev)
{
struct rk3036_codec_priv *priv;
struct device_node *of_node = pdev->dev.of_node;
void __iomem *base;
struct regmap *grf;
int ret;
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(base))
return PTR_ERR(base);
priv->base = base;
priv->regmap = devm_regmap_init_mmio(&pdev->dev, priv->base,
&rk3036_codec_regmap_config);
if (IS_ERR(priv->regmap)) {
dev_err(&pdev->dev, "init regmap failed\n");
return PTR_ERR(priv->regmap);
}
grf = syscon_regmap_lookup_by_phandle(of_node, "rockchip,grf");
if (IS_ERR(grf)) {
dev_err(&pdev->dev, "needs 'rockchip,grf' property\n");
return PTR_ERR(grf);
}
ret = regmap_write(grf, GRF_SOC_CON0, GRF_ACODEC_SEL);
if (ret) {
dev_err(&pdev->dev, "Could not write to GRF: %d\n", ret);
return ret;
}
priv->pclk = devm_clk_get(&pdev->dev, "acodec_pclk");
if (IS_ERR(priv->pclk))
return PTR_ERR(priv->pclk);
ret = clk_prepare_enable(priv->pclk);
if (ret < 0) {
dev_err(&pdev->dev, "failed to enable clk\n");
return ret;
}
priv->dev = &pdev->dev;
dev_set_drvdata(&pdev->dev, priv);
ret = devm_snd_soc_register_component(&pdev->dev, &rk3036_codec_driver,
rk3036_codec_dai_driver,
ARRAY_SIZE(rk3036_codec_dai_driver));
if (ret) {
clk_disable_unprepare(priv->pclk);
dev_set_drvdata(&pdev->dev, NULL);
}
return ret;
}
static void rk3036_codec_platform_remove(struct platform_device *pdev)
{
struct rk3036_codec_priv *priv = dev_get_drvdata(&pdev->dev);
clk_disable_unprepare(priv->pclk);
}
static const struct of_device_id rk3036_codec_of_match[] __maybe_unused = {
{ .compatible = "rockchip,rk3036-codec", },
{}
};
MODULE_DEVICE_TABLE(of, rk3036_codec_of_match);
static struct platform_driver rk3036_codec_platform_driver = {
.driver = {
.name = "rk3036-codec-platform",
.of_match_table = of_match_ptr(rk3036_codec_of_match),
},
.probe = rk3036_codec_platform_probe,
.remove = rk3036_codec_platform_remove,
};
module_platform_driver(rk3036_codec_platform_driver);
MODULE_AUTHOR("Rockchip Inc.");
MODULE_DESCRIPTION("Rockchip rk3036 codec driver");
MODULE_LICENSE("GPL");
Codebase Browser
linux