From 1f93a7dfd1f8d5ff7a5c53246c7534fe2332d6f4 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 02:46:07 +0000
Subject: [PATCH] add audio
---
kernel/sound/soc/codecs/ak4458.c | 226 +++++++++++++++++++++++++++++++++++++++++++++++++-------
1 files changed, 198 insertions(+), 28 deletions(-)
diff --git a/kernel/sound/soc/codecs/ak4458.c b/kernel/sound/soc/codecs/ak4458.c
index 0b35b84..85a1d00 100644
--- a/kernel/sound/soc/codecs/ak4458.c
+++ b/kernel/sound/soc/codecs/ak4458.c
@@ -12,6 +12,7 @@
#include <linux/of_device.h>
#include <linux/of_gpio.h>
#include <linux/pm_runtime.h>
+#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <sound/initval.h>
#include <sound/pcm_params.h>
@@ -21,8 +22,27 @@
#include "ak4458.h"
+#define AK4458_NUM_SUPPLIES 2
+static const char *ak4458_supply_names[AK4458_NUM_SUPPLIES] = {
+ "DVDD",
+ "AVDD",
+};
+
+enum ak4458_type {
+ AK4458 = 0,
+ AK4497 = 1,
+};
+
+struct ak4458_drvdata {
+ struct snd_soc_dai_driver *dai_drv;
+ const struct snd_soc_component_driver *comp_drv;
+ enum ak4458_type type;
+};
+
/* AK4458 Codec Private Data */
struct ak4458_priv {
+ struct regulator_bulk_data supplies[AK4458_NUM_SUPPLIES];
+ const struct ak4458_drvdata *drvdata;
struct device *dev;
struct regmap *regmap;
struct gpio_desc *reset_gpiod;
@@ -32,6 +52,7 @@
int fmt;
int slots;
int slot_width;
+ u32 dsd_path; /* For ak4497 */
};
static const struct reg_default ak4458_reg_defaults[] = {
@@ -258,6 +279,33 @@
{"AK4458 AOUTD", NULL, "AK4458 DAC4"},
};
+/* ak4497 controls */
+static const struct snd_kcontrol_new ak4497_snd_controls[] = {
+ SOC_DOUBLE_R_TLV("DAC Playback Volume", AK4458_03_LCHATT,
+ AK4458_04_RCHATT, 0, 0xFF, 0, dac_tlv),
+ SOC_ENUM("AK4497 De-emphasis Response DAC", ak4458_dac1_dem_enum),
+ SOC_ENUM_EXT("AK4497 Digital Filter Setting", ak4458_digfil_enum,
+ get_digfil, set_digfil),
+ SOC_ENUM("AK4497 Inverting Enable of DZFB", ak4458_dzfb_enum),
+ SOC_ENUM("AK4497 Sound Mode", ak4458_sm_enum),
+ SOC_ENUM("AK4497 Attenuation transition Time Setting",
+ ak4458_ats_enum),
+};
+
+/* ak4497 dapm widgets */
+static const struct snd_soc_dapm_widget ak4497_dapm_widgets[] = {
+ SND_SOC_DAPM_DAC("AK4497 DAC", NULL, AK4458_0A_CONTROL6, 2, 0),
+ SND_SOC_DAPM_AIF_IN("AK4497 SDTI", "Playback", 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_OUTPUT("AK4497 AOUT"),
+};
+
+/* ak4497 dapm routes */
+static const struct snd_soc_dapm_route ak4497_intercon[] = {
+ {"AK4497 DAC", NULL, "AK4497 SDTI"},
+ {"AK4497 AOUT", NULL, "AK4497 DAC"},
+
+};
+
static int ak4458_rstn_control(struct snd_soc_component *component, int bit)
{
int ret;
@@ -285,11 +333,53 @@
struct snd_soc_component *component = dai->component;
struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
int pcm_width = max(params_physical_width(params), ak4458->slot_width);
- int nfs1;
- u8 format;
+ u8 format, dsdsel0, dsdsel1;
+ int nfs1, dsd_bclk;
nfs1 = params_rate(params);
ak4458->fs = nfs1;
+
+ /* calculate bit clock */
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_DSD_U8:
+ case SNDRV_PCM_FORMAT_DSD_U16_LE:
+ case SNDRV_PCM_FORMAT_DSD_U16_BE:
+ case SNDRV_PCM_FORMAT_DSD_U32_LE:
+ case SNDRV_PCM_FORMAT_DSD_U32_BE:
+ dsd_bclk = nfs1 * params_physical_width(params);
+ switch (dsd_bclk) {
+ case 2822400:
+ dsdsel0 = 0;
+ dsdsel1 = 0;
+ break;
+ case 5644800:
+ dsdsel0 = 1;
+ dsdsel1 = 0;
+ break;
+ case 11289600:
+ dsdsel0 = 0;
+ dsdsel1 = 1;
+ break;
+ case 22579200:
+ if (ak4458->drvdata->type == AK4497) {
+ dsdsel0 = 1;
+ dsdsel1 = 1;
+ } else {
+ dev_err(dai->dev, "DSD512 not supported.\n");
+ return -EINVAL;
+ }
+ break;
+ default:
+ dev_err(dai->dev, "Unsupported dsd bclk.\n");
+ return -EINVAL;
+ }
+
+ snd_soc_component_update_bits(component, AK4458_06_DSD1,
+ AK4458_DSDSEL_MASK, dsdsel0);
+ snd_soc_component_update_bits(component, AK4458_09_DSD2,
+ AK4458_DSDSEL_MASK, dsdsel1);
+ break;
+ }
/* Master Clock Frequency Auto Setting Mode Enable */
snd_soc_component_update_bits(component, AK4458_00_CONTROL1, 0x80, 0x80);
@@ -313,6 +403,9 @@
format = AK4458_DIF_32BIT_LSB;
break;
case SND_SOC_DAIFMT_DSP_B:
+ format = AK4458_DIF_32BIT_MSB;
+ break;
+ case SND_SOC_DAIFMT_PDM:
format = AK4458_DIF_32BIT_MSB;
break;
default:
@@ -353,6 +446,7 @@
case SND_SOC_DAIFMT_LEFT_J:
case SND_SOC_DAIFMT_RIGHT_J:
case SND_SOC_DAIFMT_DSP_B:
+ case SND_SOC_DAIFMT_PDM:
ak4458->fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
break;
default:
@@ -360,6 +454,12 @@
fmt & SND_SOC_DAIFMT_FORMAT_MASK);
return -EINVAL;
}
+
+ /* DSD mode */
+ snd_soc_component_update_bits(component, AK4458_02_CONTROL3,
+ AK4458_DP_MASK,
+ ak4458->fmt == SND_SOC_DAIFMT_PDM ?
+ AK4458_DP_MASK : 0);
ak4458_rstn_control(component, 0);
ak4458_rstn_control(component, 1);
@@ -369,29 +469,29 @@
static const int att_speed[] = { 4080, 2040, 510, 255 };
-static int ak4458_set_dai_mute(struct snd_soc_dai *dai, int mute)
+static int ak4458_set_dai_mute(struct snd_soc_dai *dai, int mute, int direction)
{
struct snd_soc_component *component = dai->component;
struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
- int nfs, ndt, ret, reg;
+ int nfs, ndt, reg;
int ats;
nfs = ak4458->fs;
- reg = snd_soc_component_read32(component, AK4458_0B_CONTROL7);
+ reg = snd_soc_component_read(component, AK4458_0B_CONTROL7);
ats = (reg & AK4458_ATS_MASK) >> AK4458_ATS_SHIFT;
ndt = att_speed[ats] / (nfs / 1000);
if (mute) {
- ret = snd_soc_component_update_bits(component, AK4458_01_CONTROL2, 0x01, 1);
+ snd_soc_component_update_bits(component, AK4458_01_CONTROL2, 0x01, 1);
mdelay(ndt);
if (ak4458->mute_gpiod)
gpiod_set_value_cansleep(ak4458->mute_gpiod, 1);
} else {
if (ak4458->mute_gpiod)
gpiod_set_value_cansleep(ak4458->mute_gpiod, 0);
- ret = snd_soc_component_update_bits(component, AK4458_01_CONTROL2, 0x01, 0);
+ snd_soc_component_update_bits(component, AK4458_01_CONTROL2, 0x01, 0);
mdelay(ndt);
}
@@ -432,7 +532,10 @@
#define AK4458_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
SNDRV_PCM_FMTBIT_S24_LE |\
- SNDRV_PCM_FMTBIT_S32_LE)
+ SNDRV_PCM_FMTBIT_S32_LE |\
+ SNDRV_PCM_FMTBIT_DSD_U8 |\
+ SNDRV_PCM_FMTBIT_DSD_U16_LE |\
+ SNDRV_PCM_FMTBIT_DSD_U32_LE)
static const unsigned int ak4458_rates[] = {
8000, 11025, 16000, 22050,
@@ -459,12 +562,13 @@
return ret;
}
-static struct snd_soc_dai_ops ak4458_dai_ops = {
+static const struct snd_soc_dai_ops ak4458_dai_ops = {
.startup = ak4458_startup,
.hw_params = ak4458_hw_params,
.set_fmt = ak4458_set_dai_fmt,
- .digital_mute = ak4458_set_dai_mute,
+ .mute_stream = ak4458_set_dai_mute,
.set_tdm_slot = ak4458_set_tdm_slot,
+ .no_capture_mute = 1,
};
static struct snd_soc_dai_driver ak4458_dai = {
@@ -479,18 +583,22 @@
.ops = &ak4458_dai_ops,
};
-static void ak4458_power_off(struct ak4458_priv *ak4458)
-{
- if (ak4458->reset_gpiod) {
- gpiod_set_value_cansleep(ak4458->reset_gpiod, 0);
- usleep_range(1000, 2000);
- }
-}
+static struct snd_soc_dai_driver ak4497_dai = {
+ .name = "ak4497-aif",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_KNOT,
+ .formats = AK4458_FORMATS,
+ },
+ .ops = &ak4458_dai_ops,
+};
-static void ak4458_power_on(struct ak4458_priv *ak4458)
+static void ak4458_reset(struct ak4458_priv *ak4458, bool active)
{
if (ak4458->reset_gpiod) {
- gpiod_set_value_cansleep(ak4458->reset_gpiod, 1);
+ gpiod_set_value_cansleep(ak4458->reset_gpiod, active);
usleep_range(1000, 2000);
}
}
@@ -504,12 +612,19 @@
if (ak4458->mute_gpiod)
gpiod_set_value_cansleep(ak4458->mute_gpiod, 1);
- ak4458_power_on(ak4458);
+ ak4458_reset(ak4458, false);
ret = snd_soc_component_update_bits(component, AK4458_00_CONTROL1,
0x80, 0x80); /* ACKS bit = 1; 10000000 */
if (ret < 0)
return ret;
+
+ if (ak4458->drvdata->type == AK4497) {
+ ret = snd_soc_component_update_bits(component, AK4458_09_DSD2,
+ 0x4, (ak4458->dsd_path << 2));
+ if (ret < 0)
+ return ret;
+ }
return ak4458_rstn_control(component, 1);
}
@@ -527,7 +642,7 @@
{
struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
- ak4458_power_off(ak4458);
+ ak4458_reset(ak4458, true);
}
#ifdef CONFIG_PM
@@ -537,23 +652,33 @@
regcache_cache_only(ak4458->regmap, true);
- ak4458_power_off(ak4458);
+ ak4458_reset(ak4458, true);
if (ak4458->mute_gpiod)
gpiod_set_value_cansleep(ak4458->mute_gpiod, 0);
+ regulator_bulk_disable(ARRAY_SIZE(ak4458->supplies),
+ ak4458->supplies);
return 0;
}
static int __maybe_unused ak4458_runtime_resume(struct device *dev)
{
struct ak4458_priv *ak4458 = dev_get_drvdata(dev);
+ int ret;
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(ak4458->supplies),
+ ak4458->supplies);
+ if (ret != 0) {
+ dev_err(ak4458->dev, "Failed to enable supplies: %d\n", ret);
+ return ret;
+ }
if (ak4458->mute_gpiod)
gpiod_set_value_cansleep(ak4458->mute_gpiod, 1);
- ak4458_power_off(ak4458);
- ak4458_power_on(ak4458);
+ ak4458_reset(ak4458, true);
+ ak4458_reset(ak4458, false);
regcache_cache_only(ak4458->regmap, false);
regcache_mark_dirty(ak4458->regmap);
@@ -577,6 +702,21 @@
.non_legacy_dai_naming = 1,
};
+static const struct snd_soc_component_driver soc_codec_dev_ak4497 = {
+ .probe = ak4458_probe,
+ .remove = ak4458_remove,
+ .controls = ak4497_snd_controls,
+ .num_controls = ARRAY_SIZE(ak4497_snd_controls),
+ .dapm_widgets = ak4497_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(ak4497_dapm_widgets),
+ .dapm_routes = ak4497_intercon,
+ .num_dapm_routes = ARRAY_SIZE(ak4497_intercon),
+ .idle_bias_on = 1,
+ .use_pmdown_time = 1,
+ .endianness = 1,
+ .non_legacy_dai_naming = 1,
+};
+
static const struct regmap_config ak4458_regmap = {
.reg_bits = 8,
.val_bits = 8,
@@ -585,6 +725,18 @@
.reg_defaults = ak4458_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(ak4458_reg_defaults),
.cache_type = REGCACHE_RBTREE,
+};
+
+static const struct ak4458_drvdata ak4458_drvdata = {
+ .dai_drv = &ak4458_dai,
+ .comp_drv = &soc_codec_dev_ak4458,
+ .type = AK4458,
+};
+
+static const struct ak4458_drvdata ak4497_drvdata = {
+ .dai_drv = &ak4497_dai,
+ .comp_drv = &soc_codec_dev_ak4497,
+ .type = AK4497,
};
static const struct dev_pm_ops ak4458_pm = {
@@ -596,7 +748,7 @@
static int ak4458_i2c_probe(struct i2c_client *i2c)
{
struct ak4458_priv *ak4458;
- int ret;
+ int ret, i;
ak4458 = devm_kzalloc(&i2c->dev, sizeof(*ak4458), GFP_KERNEL);
if (!ak4458)
@@ -609,6 +761,8 @@
i2c_set_clientdata(i2c, ak4458);
ak4458->dev = &i2c->dev;
+ ak4458->drvdata = of_device_get_match_data(&i2c->dev);
+
ak4458->reset_gpiod = devm_gpiod_get_optional(ak4458->dev, "reset",
GPIOD_OUT_LOW);
if (IS_ERR(ak4458->reset_gpiod))
@@ -619,14 +773,29 @@
if (IS_ERR(ak4458->mute_gpiod))
return PTR_ERR(ak4458->mute_gpiod);
- ret = devm_snd_soc_register_component(ak4458->dev, &soc_codec_dev_ak4458,
- &ak4458_dai, 1);
+ /* Optional property for ak4497 */
+ of_property_read_u32(i2c->dev.of_node, "dsd-path", &ak4458->dsd_path);
+
+ for (i = 0; i < ARRAY_SIZE(ak4458->supplies); i++)
+ ak4458->supplies[i].supply = ak4458_supply_names[i];
+
+ ret = devm_regulator_bulk_get(ak4458->dev, ARRAY_SIZE(ak4458->supplies),
+ ak4458->supplies);
+ if (ret != 0) {
+ dev_err(ak4458->dev, "Failed to request supplies: %d\n", ret);
+ return ret;
+ }
+
+ ret = devm_snd_soc_register_component(ak4458->dev,
+ ak4458->drvdata->comp_drv,
+ ak4458->drvdata->dai_drv, 1);
if (ret < 0) {
dev_err(ak4458->dev, "Failed to register CODEC: %d\n", ret);
return ret;
}
pm_runtime_enable(&i2c->dev);
+ regcache_cache_only(ak4458->regmap, true);
return 0;
}
@@ -639,7 +808,8 @@
}
static const struct of_device_id ak4458_of_match[] = {
- { .compatible = "asahi-kasei,ak4458", },
+ { .compatible = "asahi-kasei,ak4458", .data = &ak4458_drvdata},
+ { .compatible = "asahi-kasei,ak4497", .data = &ak4497_drvdata},
{ },
};
MODULE_DEVICE_TABLE(of, ak4458_of_match);
--
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