// SPDX-License-Identifier: GPL-2.0-only
//
// aw88395.c -- ALSA SoC AW88395 codec support
//
// Copyright (c) 2022-2023 AWINIC Technology CO., LTD
//
// Author: Bruce zhao <[email protected]>
// Author: Weidong Wang <[email protected]>
//
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/firmware.h>
#include <linux/regmap.h>
#include <sound/soc.h>
#include "aw88395.h"
#include "aw88395_device.h"
#include "aw88395_lib.h"
#include "aw88395_reg.h"
static const struct regmap_config aw88395_remap_config = {
.val_bits = 16,
.reg_bits = 8,
.max_register = AW88395_REG_MAX - 1,
.reg_format_endian = REGMAP_ENDIAN_LITTLE,
.val_format_endian = REGMAP_ENDIAN_BIG,
};
static void aw88395_start_pa(struct aw88395 *aw88395)
{
int ret, i;
for (i = 0; i < AW88395_START_RETRIES; i++) {
ret = aw88395_dev_start(aw88395->aw_pa);
if (ret) {
dev_err(aw88395->aw_pa->dev, "aw88395 device start failed. retry = %d", i);
ret = aw88395_dev_fw_update(aw88395->aw_pa, AW88395_DSP_FW_UPDATE_ON, true);
if (ret < 0) {
dev_err(aw88395->aw_pa->dev, "fw update failed");
continue;
}
} else {
dev_info(aw88395->aw_pa->dev, "start success\n");
break;
}
}
}
static void aw88395_startup_work(struct work_struct *work)
{
struct aw88395 *aw88395 =
container_of(work, struct aw88395, start_work.work);
mutex_lock(&aw88395->lock);
aw88395_start_pa(aw88395);
mutex_unlock(&aw88395->lock);
}
static void aw88395_start(struct aw88395 *aw88395, bool sync_start)
{
int ret;
if (aw88395->aw_pa->fw_status != AW88395_DEV_FW_OK)
return;
if (aw88395->aw_pa->status == AW88395_DEV_PW_ON)
return;
ret = aw88395_dev_fw_update(aw88395->aw_pa, AW88395_DSP_FW_UPDATE_OFF, true);
if (ret < 0) {
dev_err(aw88395->aw_pa->dev, "fw update failed.");
return;
}
if (sync_start == AW88395_SYNC_START)
aw88395_start_pa(aw88395);
else
queue_delayed_work(system_wq,
&aw88395->start_work,
AW88395_START_WORK_DELAY_MS);
}
static struct snd_soc_dai_driver aw88395_dai[] = {
{
.name = "aw88395-aif",
.id = 1,
.playback = {
.stream_name = "Speaker_Playback",
.channels_min = 1,
.channels_max = 2,
.rates = AW88395_RATES,
.formats = AW88395_FORMATS,
},
.capture = {
.stream_name = "Speaker_Capture",
.channels_min = 1,
.channels_max = 2,
.rates = AW88395_RATES,
.formats = AW88395_FORMATS,
},
},
};
static int aw88395_get_fade_in_time(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct aw88395 *aw88395 = snd_soc_component_get_drvdata(component);
struct aw_device *aw_dev = aw88395->aw_pa;
ucontrol->value.integer.value[0] = aw_dev->fade_in_time;
return 0;
}
static int aw88395_set_fade_in_time(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct aw88395 *aw88395 = snd_soc_component_get_drvdata(component);
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
struct aw_device *aw_dev = aw88395->aw_pa;
int time;
time = ucontrol->value.integer.value[0];
if (time < mc->min || time > mc->max)
return -EINVAL;
if (time != aw_dev->fade_in_time) {
aw_dev->fade_in_time = time;
return 1;
}
return 0;
}
static int aw88395_get_fade_out_time(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct aw88395 *aw88395 = snd_soc_component_get_drvdata(component);
struct aw_device *aw_dev = aw88395->aw_pa;
ucontrol->value.integer.value[0] = aw_dev->fade_out_time;
return 0;
}
static int aw88395_set_fade_out_time(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct aw88395 *aw88395 = snd_soc_component_get_drvdata(component);
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
struct aw_device *aw_dev = aw88395->aw_pa;
int time;
time = ucontrol->value.integer.value[0];
if (time < mc->min || time > mc->max)
return -EINVAL;
if (time != aw_dev->fade_out_time) {
aw_dev->fade_out_time = time;
return 1;
}
return 0;
}
static int aw88395_profile_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec);
char *prof_name, *name;
int count, ret;
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = 1;
count = aw88395_dev_get_profile_count(aw88395->aw_pa);
if (count <= 0) {
uinfo->value.enumerated.items = 0;
return 0;
}
uinfo->value.enumerated.items = count;
if (uinfo->value.enumerated.item >= count)
uinfo->value.enumerated.item = count - 1;
name = uinfo->value.enumerated.name;
count = uinfo->value.enumerated.item;
ret = aw88395_dev_get_prof_name(aw88395->aw_pa, count, &prof_name);
if (ret) {
strscpy(uinfo->value.enumerated.name, "null",
strlen("null") + 1);
return 0;
}
strscpy(name, prof_name, sizeof(uinfo->value.enumerated.name));
return 0;
}
static int aw88395_profile_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec);
ucontrol->value.integer.value[0] = aw88395_dev_get_profile_index(aw88395->aw_pa);
return 0;
}
static int aw88395_profile_set(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec);
int ret;
/* pa stop or stopping just set profile */
mutex_lock(&aw88395->lock);
ret = aw88395_dev_set_profile_index(aw88395->aw_pa, ucontrol->value.integer.value[0]);
if (ret < 0) {
dev_dbg(codec->dev, "profile index does not change");
mutex_unlock(&aw88395->lock);
return 0;
}
if (aw88395->aw_pa->status) {
aw88395_dev_stop(aw88395->aw_pa);
aw88395_start(aw88395, AW88395_SYNC_START);
}
mutex_unlock(&aw88395->lock);
return 1;
}
static int aw88395_volume_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec);
struct aw_volume_desc *vol_desc = &aw88395->aw_pa->volume_desc;
ucontrol->value.integer.value[0] = vol_desc->ctl_volume;
return 0;
}
static int aw88395_volume_set(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec);
struct aw_volume_desc *vol_desc = &aw88395->aw_pa->volume_desc;
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
int value;
value = ucontrol->value.integer.value[0];
if (value < mc->min || value > mc->max)
return -EINVAL;
if (vol_desc->ctl_volume != value) {
vol_desc->ctl_volume = value;
aw88395_dev_set_volume(aw88395->aw_pa, vol_desc->ctl_volume);
return 1;
}
return 0;
}
static int aw88395_get_fade_step(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec);
ucontrol->value.integer.value[0] = aw88395->aw_pa->fade_step;
return 0;
}
static int aw88395_set_fade_step(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec);
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
int value;
value = ucontrol->value.integer.value[0];
if (value < mc->min || value > mc->max)
return -EINVAL;
if (aw88395->aw_pa->fade_step != value) {
aw88395->aw_pa->fade_step = value;
return 1;
}
return 0;
}
static int aw88395_re_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec);
struct aw_device *aw_dev = aw88395->aw_pa;
ucontrol->value.integer.value[0] = aw_dev->cali_desc.cali_re;
return 0;
}
static int aw88395_re_set(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec);
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
struct aw_device *aw_dev = aw88395->aw_pa;
int value;
value = ucontrol->value.integer.value[0];
if (value < mc->min || value > mc->max)
return -EINVAL;
if (aw_dev->cali_desc.cali_re != value) {
aw_dev->cali_desc.cali_re = value;
return 1;
}
return 0;
}
static const struct snd_kcontrol_new aw88395_controls[] = {
SOC_SINGLE_EXT("PCM Playback Volume", AW88395_SYSCTRL2_REG,
6, AW88395_MUTE_VOL, 0, aw88395_volume_get,
aw88395_volume_set),
SOC_SINGLE_EXT("Fade Step", 0, 0, AW88395_MUTE_VOL, 0,
aw88395_get_fade_step, aw88395_set_fade_step),
SOC_SINGLE_EXT("Volume Ramp Up Step", 0, 0, FADE_TIME_MAX, FADE_TIME_MIN,
aw88395_get_fade_in_time, aw88395_set_fade_in_time),
SOC_SINGLE_EXT("Volume Ramp Down Step", 0, 0, FADE_TIME_MAX, FADE_TIME_MIN,
aw88395_get_fade_out_time, aw88395_set_fade_out_time),
SOC_SINGLE_EXT("Calib", 0, 0, AW88395_CALI_RE_MAX, 0,
aw88395_re_get, aw88395_re_set),
AW88395_PROFILE_EXT("Profile Set", aw88395_profile_info,
aw88395_profile_get, aw88395_profile_set),
};
static int aw88395_playback_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event)
{
struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
struct aw88395 *aw88395 = snd_soc_component_get_drvdata(component);
mutex_lock(&aw88395->lock);
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
aw88395_start(aw88395, AW88395_ASYNC_START);
break;
case SND_SOC_DAPM_POST_PMD:
aw88395_dev_stop(aw88395->aw_pa);
break;
default:
break;
}
mutex_unlock(&aw88395->lock);
return 0;
}
static const struct snd_soc_dapm_widget aw88395_dapm_widgets[] = {
/* playback */
SND_SOC_DAPM_AIF_IN_E("AIF_RX", "Speaker_Playback", 0, 0, 0, 0,
aw88395_playback_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_OUTPUT("DAC Output"),
/* capture */
SND_SOC_DAPM_AIF_OUT("AIF_TX", "Speaker_Capture", 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_INPUT("ADC Input"),
};
static const struct snd_soc_dapm_route aw88395_audio_map[] = {
{"DAC Output", NULL, "AIF_RX"},
{"AIF_TX", NULL, "ADC Input"},
};
static int aw88395_codec_probe(struct snd_soc_component *component)
{
struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
struct aw88395 *aw88395 = snd_soc_component_get_drvdata(component);
int ret;
INIT_DELAYED_WORK(&aw88395->start_work, aw88395_startup_work);
/* add widgets */
ret = snd_soc_dapm_new_controls(dapm, aw88395_dapm_widgets,
ARRAY_SIZE(aw88395_dapm_widgets));
if (ret < 0)
return ret;
/* add route */
ret = snd_soc_dapm_add_routes(dapm, aw88395_audio_map,
ARRAY_SIZE(aw88395_audio_map));
if (ret < 0)
return ret;
ret = snd_soc_add_component_controls(component, aw88395_controls,
ARRAY_SIZE(aw88395_controls));
return ret;
}
static void aw88395_codec_remove(struct snd_soc_component *aw_codec)
{
struct aw88395 *aw88395 = snd_soc_component_get_drvdata(aw_codec);
cancel_delayed_work_sync(&aw88395->start_work);
}
static const struct snd_soc_component_driver soc_codec_dev_aw88395 = {
.probe = aw88395_codec_probe,
.remove = aw88395_codec_remove,
};
static struct aw88395 *aw88395_malloc_init(struct i2c_client *i2c)
{
struct aw88395 *aw88395 = devm_kzalloc(&i2c->dev,
sizeof(struct aw88395), GFP_KERNEL);
if (!aw88395)
return NULL;
mutex_init(&aw88395->lock);
return aw88395;
}
static void aw88395_hw_reset(struct aw88395 *aw88395)
{
if (aw88395->reset_gpio) {
gpiod_set_value_cansleep(aw88395->reset_gpio, 0);
usleep_range(AW88395_1000_US, AW88395_1000_US + 10);
gpiod_set_value_cansleep(aw88395->reset_gpio, 1);
usleep_range(AW88395_1000_US, AW88395_1000_US + 10);
} else {
dev_err(aw88395->aw_pa->dev, "%s failed", __func__);
}
}
static int aw88395_request_firmware_file(struct aw88395 *aw88395)
{
const struct firmware *cont = NULL;
int ret;
aw88395->aw_pa->fw_status = AW88395_DEV_FW_FAILED;
ret = request_firmware(&cont, AW88395_ACF_FILE, aw88395->aw_pa->dev);
if ((ret < 0) || (!cont)) {
dev_err(aw88395->aw_pa->dev, "load [%s] failed!", AW88395_ACF_FILE);
return ret;
}
dev_info(aw88395->aw_pa->dev, "loaded %s - size: %zu\n",
AW88395_ACF_FILE, cont ? cont->size : 0);
aw88395->aw_cfg = devm_kzalloc(aw88395->aw_pa->dev, cont->size + sizeof(int), GFP_KERNEL);
if (!aw88395->aw_cfg) {
release_firmware(cont);
return -ENOMEM;
}
aw88395->aw_cfg->len = (int)cont->size;
memcpy(aw88395->aw_cfg->data, cont->data, cont->size);
release_firmware(cont);
ret = aw88395_dev_load_acf_check(aw88395->aw_pa, aw88395->aw_cfg);
if (ret < 0) {
dev_err(aw88395->aw_pa->dev, "Load [%s] failed ....!", AW88395_ACF_FILE);
return ret;
}
dev_dbg(aw88395->aw_pa->dev, "%s : bin load success\n", __func__);
mutex_lock(&aw88395->lock);
/* aw device init */
ret = aw88395_dev_init(aw88395->aw_pa, aw88395->aw_cfg);
if (ret < 0)
dev_err(aw88395->aw_pa->dev, "dev init failed");
mutex_unlock(&aw88395->lock);
return ret;
}
static int aw88395_i2c_probe(struct i2c_client *i2c)
{
struct aw88395 *aw88395;
int ret;
if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_I2C)) {
dev_err(&i2c->dev, "check_functionality failed");
return -EIO;
}
aw88395 = aw88395_malloc_init(i2c);
if (!aw88395) {
dev_err(&i2c->dev, "malloc aw88395 failed");
return -ENOMEM;
}
i2c_set_clientdata(i2c, aw88395);
aw88395->reset_gpio = devm_gpiod_get_optional(&i2c->dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(aw88395->reset_gpio))
dev_info(&i2c->dev, "reset gpio not defined\n");
/* hardware reset */
aw88395_hw_reset(aw88395);
aw88395->regmap = devm_regmap_init_i2c(i2c, &aw88395_remap_config);
if (IS_ERR(aw88395->regmap)) {
ret = PTR_ERR(aw88395->regmap);
dev_err(&i2c->dev, "Failed to init regmap: %d\n", ret);
return ret;
}
/* aw pa init */
ret = aw88395_init(&aw88395->aw_pa, i2c, aw88395->regmap);
if (ret < 0)
return ret;
ret = aw88395_request_firmware_file(aw88395);
if (ret < 0) {
dev_err(&i2c->dev, "%s failed\n", __func__);
return ret;
}
ret = devm_snd_soc_register_component(&i2c->dev,
&soc_codec_dev_aw88395,
aw88395_dai, ARRAY_SIZE(aw88395_dai));
if (ret < 0) {
dev_err(&i2c->dev, "failed to register aw88395: %d", ret);
return ret;
}
return 0;
}
static const struct i2c_device_id aw88395_i2c_id[] = {
{ AW88395_I2C_NAME },
{ }
};
MODULE_DEVICE_TABLE(i2c, aw88395_i2c_id);
static struct i2c_driver aw88395_i2c_driver = {
.driver = {
.name = AW88395_I2C_NAME,
},
.probe = aw88395_i2c_probe,
.id_table = aw88395_i2c_id,
};
module_i2c_driver(aw88395_i2c_driver);
MODULE_DESCRIPTION("ASoC AW88395 Smart PA Driver");
MODULE_LICENSE("GPL v2");