1 files changed, 463 insertions, 0 deletions

diff --git a/sound/soc/codecs/aw87390.c b/sound/soc/codecs/aw87390.c
new file mode 100644
index 000000000000..79521ff44001
--- /dev/null
+++ b/sound/soc/codecs/aw87390.c
@@ -0,0 +1,463 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// aw87390.c  --  AW87390 ALSA SoC Audio driver
+//
+// Copyright (c) 2023 awinic Technology CO., LTD
+//
+// Author: Weidong Wang <wangweidong.a@awinic.com>
+//
+
+#include <linux/i2c.h>
+#include <linux/firmware.h>
+#include <linux/regmap.h>
+#include <sound/soc.h>
+#include "aw87390.h"
+#include "aw88395/aw88395_data_type.h"
+#include "aw88395/aw88395_device.h"
+
+static const struct regmap_config aw87390_remap_config = {
+	.val_bits = 8,
+	.reg_bits = 8,
+	.max_register = AW87390_REG_MAX,
+	.reg_format_endian = REGMAP_ENDIAN_LITTLE,
+	.val_format_endian = REGMAP_ENDIAN_BIG,
+};
+
+static int aw87390_dev_reg_update(struct aw_device *aw_dev,
+					unsigned char *data, unsigned int len)
+{
+	int i, ret;
+
+	if (!data) {
+		dev_err(aw_dev->dev, "data is NULL\n");
+		return -EINVAL;
+	}
+
+	for (i = 0; i < len-1; i += 2) {
+		if (data[i] == AW87390_DELAY_REG_ADDR) {
+			usleep_range(data[i + 1] * AW87390_REG_DELAY_TIME,
+					data[i + 1] * AW87390_REG_DELAY_TIME + 10);
+			continue;
+		}
+		ret = regmap_write(aw_dev->regmap, data[i], data[i + 1]);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int aw87390_dev_get_prof_name(struct aw_device *aw_dev, int index, char **prof_name)
+{
+	struct aw_prof_info *prof_info = &aw_dev->prof_info;
+	struct aw_prof_desc *prof_desc;
+
+	if ((index >= aw_dev->prof_info.count) || (index < 0)) {
+		dev_err(aw_dev->dev, "index[%d] overflow count[%d]\n",
+			index, aw_dev->prof_info.count);
+		return -EINVAL;
+	}
+
+	prof_desc = &aw_dev->prof_info.prof_desc[index];
+
+	*prof_name = prof_info->prof_name_list[prof_desc->id];
+
+	return 0;
+}
+
+static int aw87390_dev_get_prof_data(struct aw_device *aw_dev, int index,
+			struct aw_prof_desc **prof_desc)
+{
+	if ((index >= aw_dev->prof_info.count) || (index < 0)) {
+		dev_err(aw_dev->dev, "%s: index[%d] overflow count[%d]\n",
+				__func__, index, aw_dev->prof_info.count);
+		return -EINVAL;
+	}
+
+	*prof_desc = &aw_dev->prof_info.prof_desc[index];
+
+	return 0;
+}
+
+static int aw87390_dev_fw_update(struct aw_device *aw_dev)
+{
+	struct aw_prof_desc *prof_index_desc;
+	struct aw_sec_data_desc *sec_desc;
+	char *prof_name;
+	int ret;
+
+	ret = aw87390_dev_get_prof_name(aw_dev, aw_dev->prof_index, &prof_name);
+	if (ret) {
+		dev_err(aw_dev->dev, "get prof name failed\n");
+		return -EINVAL;
+	}
+
+	dev_dbg(aw_dev->dev, "start update %s", prof_name);
+
+	ret = aw87390_dev_get_prof_data(aw_dev, aw_dev->prof_index, &prof_index_desc);
+	if (ret) {
+		dev_err(aw_dev->dev, "aw87390_dev_get_prof_data failed\n");
+		return ret;
+	}
+
+	/* update reg */
+	sec_desc = prof_index_desc->sec_desc;
+	ret = aw87390_dev_reg_update(aw_dev, sec_desc[AW88395_DATA_TYPE_REG].data,
+					sec_desc[AW88395_DATA_TYPE_REG].len);
+	if (ret) {
+		dev_err(aw_dev->dev, "update reg failed\n");
+		return ret;
+	}
+
+	aw_dev->prof_cur = aw_dev->prof_index;
+
+	return 0;
+}
+
+static int aw87390_power_off(struct aw_device *aw_dev)
+{
+	int ret;
+
+	if (aw_dev->status == AW87390_DEV_PW_OFF) {
+		dev_dbg(aw_dev->dev, "already power off\n");
+		return 0;
+	}
+
+	ret = regmap_write(aw_dev->regmap, AW87390_SYSCTRL_REG, AW87390_POWER_DOWN_VALUE);
+	if (ret)
+		return ret;
+	aw_dev->status = AW87390_DEV_PW_OFF;
+
+	return 0;
+}
+
+static int aw87390_power_on(struct aw_device *aw_dev)
+{
+	int ret;
+
+	if (aw_dev->status == AW87390_DEV_PW_ON) {
+		dev_dbg(aw_dev->dev, "already power on\n");
+		return 0;
+	}
+
+	if (!aw_dev->fw_status) {
+		dev_err(aw_dev->dev, "fw not load\n");
+		return -EINVAL;
+	}
+
+	ret = regmap_write(aw_dev->regmap, AW87390_SYSCTRL_REG, AW87390_POWER_DOWN_VALUE);
+	if (ret)
+		return ret;
+
+	ret = aw87390_dev_fw_update(aw_dev);
+	if (ret) {
+		dev_err(aw_dev->dev, "%s load profile failed\n", __func__);
+		return ret;
+	}
+	aw_dev->status = AW87390_DEV_PW_ON;
+
+	return 0;
+}
+
+static int aw87390_dev_set_profile_index(struct aw_device *aw_dev, int index)
+{
+	if ((index >= aw_dev->prof_info.count) || (index < 0))
+		return -EINVAL;
+
+	if (aw_dev->prof_index == index)
+		return -EPERM;
+
+	aw_dev->prof_index = index;
+
+	return 0;
+}
+
+static int aw87390_profile_info(struct snd_kcontrol *kcontrol,
+			 struct snd_ctl_elem_info *uinfo)
+{
+	struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+	struct aw87390 *aw87390 = snd_soc_component_get_drvdata(codec);
+	char *prof_name, *name;
+	int count, ret;
+
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+	uinfo->count = 1;
+
+	count = aw87390->aw_pa->prof_info.count;
+	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 = aw87390_dev_get_prof_name(aw87390->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 aw87390_profile_get(struct snd_kcontrol *kcontrol,
+			struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+	struct aw87390 *aw87390 = snd_soc_component_get_drvdata(codec);
+
+	ucontrol->value.integer.value[0] = aw87390->aw_pa->prof_index;
+
+	return 0;
+}
+
+static int aw87390_profile_set(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+	struct aw87390 *aw87390 = snd_soc_component_get_drvdata(codec);
+	int ret;
+
+	mutex_lock(&aw87390->lock);
+	ret = aw87390_dev_set_profile_index(aw87390->aw_pa, ucontrol->value.integer.value[0]);
+	if (ret) {
+		dev_dbg(codec->dev, "profile index does not change\n");
+		mutex_unlock(&aw87390->lock);
+		return 0;
+	}
+
+	if (aw87390->aw_pa->status == AW87390_DEV_PW_ON) {
+		aw87390_power_off(aw87390->aw_pa);
+		aw87390_power_on(aw87390->aw_pa);
+	}
+
+	mutex_unlock(&aw87390->lock);
+
+	return 1;
+}
+
+static const struct snd_kcontrol_new aw87390_controls[] = {
+	AW87390_PROFILE_EXT("AW87390 Profile Set", aw87390_profile_info,
+		aw87390_profile_get, aw87390_profile_set),
+};
+
+static int aw87390_request_firmware_file(struct aw87390 *aw87390)
+{
+	const struct firmware *cont = NULL;
+	int ret;
+
+	aw87390->aw_pa->fw_status = AW87390_DEV_FW_FAILED;
+
+	ret = request_firmware(&cont, AW87390_ACF_FILE, aw87390->aw_pa->dev);
+	if (ret)
+		return dev_err_probe(aw87390->aw_pa->dev, ret,
+					"load [%s] failed!\n", AW87390_ACF_FILE);
+
+	dev_dbg(aw87390->aw_pa->dev, "loaded %s - size: %zu\n",
+			AW87390_ACF_FILE, cont ? cont->size : 0);
+
+	aw87390->aw_cfg = devm_kzalloc(aw87390->aw_pa->dev,
+				struct_size(aw87390->aw_cfg, data, cont->size), GFP_KERNEL);
+	if (!aw87390->aw_cfg) {
+		release_firmware(cont);
+		return -ENOMEM;
+	}
+
+	aw87390->aw_cfg->len = cont->size;
+	memcpy(aw87390->aw_cfg->data, cont->data, cont->size);
+	release_firmware(cont);
+
+	ret = aw88395_dev_load_acf_check(aw87390->aw_pa, aw87390->aw_cfg);
+	if (ret) {
+		dev_err(aw87390->aw_pa->dev, "load [%s] failed!\n", AW87390_ACF_FILE);
+		return ret;
+	}
+
+	mutex_lock(&aw87390->lock);
+
+	ret = aw88395_dev_cfg_load(aw87390->aw_pa, aw87390->aw_cfg);
+	if (ret)
+		dev_err(aw87390->aw_pa->dev, "aw_dev acf parse failed\n");
+
+	mutex_unlock(&aw87390->lock);
+
+	return ret;
+}
+
+static int aw87390_drv_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 aw87390 *aw87390 = snd_soc_component_get_drvdata(component);
+	struct aw_device *aw_dev = aw87390->aw_pa;
+	int ret;
+
+	switch (event) {
+	case SND_SOC_DAPM_PRE_PMU:
+		ret = aw87390_power_on(aw_dev);
+		break;
+	case SND_SOC_DAPM_POST_PMD:
+		ret = aw87390_power_off(aw_dev);
+		break;
+	default:
+		dev_err(aw_dev->dev, "%s: invalid event %d\n", __func__, event);
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static const struct snd_soc_dapm_widget aw87390_dapm_widgets[] = {
+	SND_SOC_DAPM_INPUT("IN"),
+	SND_SOC_DAPM_PGA_E("SPK PA", SND_SOC_NOPM, 0, 0, NULL, 0, aw87390_drv_event,
+			       SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
+	SND_SOC_DAPM_OUTPUT("OUT"),
+};
+
+static const struct snd_soc_dapm_route aw87390_dapm_routes[] = {
+	{ "SPK PA", NULL, "IN" },
+	{ "OUT", NULL, "SPK PA" },
+};
+
+static int aw87390_codec_probe(struct snd_soc_component *component)
+{
+	struct aw87390 *aw87390 = snd_soc_component_get_drvdata(component);
+	int ret;
+
+	ret = aw87390_request_firmware_file(aw87390);
+	if (ret)
+		return dev_err_probe(aw87390->aw_pa->dev, ret,
+				"aw87390_request_firmware_file failed\n");
+
+	return 0;
+}
+
+static const struct snd_soc_component_driver soc_codec_dev_aw87390 = {
+	.probe = aw87390_codec_probe,
+	.dapm_widgets = aw87390_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(aw87390_dapm_widgets),
+	.dapm_routes = aw87390_dapm_routes,
+	.num_dapm_routes = ARRAY_SIZE(aw87390_dapm_routes),
+	.controls = aw87390_controls,
+	.num_controls = ARRAY_SIZE(aw87390_controls),
+};
+
+static void aw87390_parse_channel_dt(struct aw87390 *aw87390)
+{
+	struct aw_device *aw_dev = aw87390->aw_pa;
+	struct device_node *np = aw_dev->dev->of_node;
+	u32 channel_value = AW87390_DEV_DEFAULT_CH;
+
+	of_property_read_u32(np, "awinic,audio-channel", &channel_value);
+
+	aw_dev->channel = channel_value;
+}
+
+static int aw87390_init(struct aw87390 **aw87390, struct i2c_client *i2c, struct regmap *regmap)
+{
+	struct aw_device *aw_dev;
+	unsigned int chip_id;
+	int ret;
+
+	/* read chip id */
+	ret = regmap_read(regmap, AW87390_ID_REG, &chip_id);
+	if (ret) {
+		dev_err(&i2c->dev, "%s read chipid error. ret = %d\n", __func__, ret);
+		return ret;
+	}
+
+	if (chip_id != AW87390_CHIP_ID) {
+		dev_err(&i2c->dev, "unsupported device\n");
+		return -ENXIO;
+	}
+
+	dev_dbg(&i2c->dev, "chip id = 0x%x\n", chip_id);
+
+	aw_dev = devm_kzalloc(&i2c->dev, sizeof(*aw_dev), GFP_KERNEL);
+	if (!aw_dev)
+		return -ENOMEM;
+
+	(*aw87390)->aw_pa = aw_dev;
+	aw_dev->i2c = i2c;
+	aw_dev->regmap = regmap;
+	aw_dev->dev = &i2c->dev;
+	aw_dev->chip_id = AW87390_CHIP_ID;
+	aw_dev->acf = NULL;
+	aw_dev->prof_info.prof_desc = NULL;
+	aw_dev->prof_info.count = 0;
+	aw_dev->prof_info.prof_type = AW88395_DEV_NONE_TYPE_ID;
+	aw_dev->channel = AW87390_DEV_DEFAULT_CH;
+	aw_dev->fw_status = AW87390_DEV_FW_FAILED;
+	aw_dev->prof_index = AW87390_INIT_PROFILE;
+	aw_dev->status = AW87390_DEV_PW_OFF;
+
+	aw87390_parse_channel_dt(*aw87390);
+
+	return 0;
+}
+
+static int aw87390_i2c_probe(struct i2c_client *i2c)
+{
+	struct aw87390 *aw87390;
+	int ret;
+
+	ret = i2c_check_functionality(i2c->adapter, I2C_FUNC_I2C);
+	if (!ret)
+		return dev_err_probe(&i2c->dev, -ENXIO, "check_functionality failed\n");
+
+	aw87390 = devm_kzalloc(&i2c->dev, sizeof(*aw87390), GFP_KERNEL);
+	if (!aw87390)
+		return -ENOMEM;
+
+	mutex_init(&aw87390->lock);
+
+	i2c_set_clientdata(i2c, aw87390);
+
+	aw87390->regmap = devm_regmap_init_i2c(i2c, &aw87390_remap_config);
+	if (IS_ERR(aw87390->regmap))
+		return dev_err_probe(&i2c->dev, PTR_ERR(aw87390->regmap),
+					"failed to init regmap\n");
+
+	/* aw pa init */
+	ret = aw87390_init(&aw87390, i2c, aw87390->regmap);
+	if (ret)
+		return ret;
+
+	ret = regmap_write(aw87390->regmap, AW87390_ID_REG, AW87390_SOFT_RESET_VALUE);
+	if (ret)
+		return ret;
+
+	ret = devm_snd_soc_register_component(&i2c->dev,
+				&soc_codec_dev_aw87390, NULL, 0);
+	if (ret)
+		dev_err(&i2c->dev, "failed to register aw87390: %d\n", ret);
+
+	return ret;
+}
+
+static const struct i2c_device_id aw87390_i2c_id[] = {
+	{ AW87390_I2C_NAME, 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, aw87390_i2c_id);
+
+static struct i2c_driver aw87390_i2c_driver = {
+	.driver = {
+		.name = AW87390_I2C_NAME,
+	},
+	.probe = aw87390_i2c_probe,
+	.id_table = aw87390_i2c_id,
+};
+module_i2c_driver(aw87390_i2c_driver);
+
+MODULE_DESCRIPTION("ASoC AW87390 PA Driver");
+MODULE_LICENSE("GPL v2");