368 lines
11 KiB
C
368 lines
11 KiB
C
/*
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* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "aw88298_dac.h"
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#include "aw88298_reg.h"
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#include "esp_codec_dev_os.h"
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#include "esp_log.h"
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#define TAG "AW88298"
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typedef struct {
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audio_codec_if_t base;
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const audio_codec_ctrl_if_t *ctrl_if;
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const audio_codec_gpio_if_t *gpio_if;
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bool is_open;
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bool enabled;
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int16_t reset_pin;
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float hw_gain;
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} audio_codec_aw88298_t;
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/* The volume register mapped to decibel table can get from codec data-sheet
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Volume control register 0x0C description:
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0xC0 - '-96dB' ... 0x00 - '+0dB'
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*/
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const esp_codec_dev_vol_range_t vol_range = {
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.min_vol =
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{
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.vol = 0xC0,
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.db_value = -96,
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},
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.max_vol =
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{
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.vol = 0,
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.db_value = 0,
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},
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};
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static int aw88298_write_reg(audio_codec_aw88298_t *codec, int reg, int value)
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{
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uint8_t write_data[2] = {(uint8_t) ((value & 0xFFFF) >> 8), (uint8_t) (value & 0xFF)};
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return codec->ctrl_if->write_reg(codec->ctrl_if, reg, 1, write_data, 2);
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}
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static int aw88298_read_reg(audio_codec_aw88298_t *codec, int reg, int *value)
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{
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int ret = 0;
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uint8_t read_data[2] = {0};
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ret = codec->ctrl_if->read_reg(codec->ctrl_if, reg, 1, read_data, 2);
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*value = ((int)read_data[0] << 8) | read_data[1];
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return ret;
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}
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static int aw88298_set_bits_per_sample(audio_codec_aw88298_t *codec, uint8_t bits)
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{
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int ret = 0;
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int dac_iface = 0;
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ret = aw88298_read_reg(codec, AW88298_I2SCTRL_REG06, &dac_iface);
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dac_iface &= ~(0xF0);
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switch (bits) {
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case 16:
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default:
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break;
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case 24:
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dac_iface |= 0x90;
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break;
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case 32:
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dac_iface |= 0xE0;
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break;
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}
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ret |= aw88298_write_reg(codec, AW88298_I2SCTRL_REG06, dac_iface);
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ESP_LOGD(TAG, "Bits %d", bits);
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return ret;
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}
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static int aw88298_config_sample(audio_codec_aw88298_t *codec, int sample_rate)
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{
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int ret = 0;
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int dac_iface = 0;
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ret = aw88298_read_reg(codec, AW88298_I2SCTRL_REG06, &dac_iface);
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dac_iface &= ~(0x0F);
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switch (sample_rate) {
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case 8000:
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break;
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case 11025:
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dac_iface |= 0x01;
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break;
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case 12000:
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dac_iface |= 0x02;
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break;
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case 16000:
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dac_iface |= 0x03;
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break;
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case 22050:
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dac_iface |= 0x04;
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break;
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case 24000:
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dac_iface |= 0x05;
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break;
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case 32000:
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dac_iface |= 0x06;
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break;
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case 44100:
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dac_iface |= 0x07;
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break;
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case 48000:
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dac_iface |= 0x08;
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break;
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case 96000:
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dac_iface |= 0x09;
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break;
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case 192000:
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dac_iface |= 0x0A;
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break;
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default:
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ESP_LOGE(TAG, "Sample rate(%d) can not support", sample_rate);
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return ESP_CODEC_DEV_NOT_SUPPORT;
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}
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ESP_LOGD(TAG, "Current sample rate: %d", sample_rate);
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ret |= aw88298_write_reg(codec, AW88298_I2SCTRL_REG06, dac_iface);
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return ret;
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}
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static int aw88298_set_fs(const audio_codec_if_t *h, esp_codec_dev_sample_info_t *fs)
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{
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audio_codec_aw88298_t *codec = (audio_codec_aw88298_t *) h;
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if (codec == NULL || codec->is_open == false) {
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return ESP_CODEC_DEV_INVALID_ARG;
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}
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int ret = 0;
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ret |= aw88298_set_bits_per_sample(codec, fs->bits_per_sample);
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ret |= aw88298_config_sample(codec, fs->sample_rate);
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return (ret == 0) ? ESP_CODEC_DEV_OK : ESP_CODEC_DEV_WRITE_FAIL;;
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}
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static int aw88298_stop(audio_codec_aw88298_t *codec)
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{
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int ret = 0;
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int data = 0;
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ret |= aw88298_read_reg(codec, AW88298_SYSCTRL_REG04, &data);
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data |= 0x03;
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data &= ~(1 << 6);
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ret |= aw88298_write_reg(codec, AW88298_SYSCTRL_REG04, data);
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return (ret == 0) ? ESP_CODEC_DEV_OK : ESP_CODEC_DEV_WRITE_FAIL;;
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}
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static int aw88298_start(audio_codec_aw88298_t *codec)
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{
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int ret = 0;
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int data = 0;
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ret |= aw88298_read_reg(codec, AW88298_SYSCTRL_REG04, &data);
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data &= ~0x03;
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data |= (1 << 6);
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ret |= aw88298_write_reg(codec, AW88298_SYSCTRL_REG04, data);
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return (ret == 0) ? ESP_CODEC_DEV_OK : ESP_CODEC_DEV_WRITE_FAIL;;
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}
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static int aw88298_set_mute(const audio_codec_if_t *h, bool mute)
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{
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audio_codec_aw88298_t *codec = (audio_codec_aw88298_t *) h;
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if (codec == NULL || codec->is_open == false) {
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return ESP_CODEC_DEV_INVALID_ARG;
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}
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int regv;
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int ret = aw88298_read_reg(codec, AW88298_SYSCTRL2_REG05, ®v);
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if (ret < 0) {
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return ESP_CODEC_DEV_READ_FAIL;
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}
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if (mute) {
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regv = regv | (1 << 4);
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} else {
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regv = regv & (~(1 << 4));
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}
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return aw88298_write_reg(codec, AW88298_SYSCTRL2_REG05, regv);
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}
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static int aw88298_set_vol(const audio_codec_if_t *h, float volume)
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{
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audio_codec_aw88298_t *codec = (audio_codec_aw88298_t *) h;
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if (codec == NULL) {
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return ESP_CODEC_DEV_INVALID_ARG;
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}
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if (codec->is_open == false) {
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return ESP_CODEC_DEV_WRONG_STATE;
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}
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volume -= codec->hw_gain;
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int reg = esp_codec_dev_vol_calc_reg(&vol_range, volume);
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reg = (reg << 8) | 0x64;
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int ret = aw88298_write_reg(codec, AW88298_HAGCCFG4_REG0C, reg);
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ESP_LOGD(TAG, "Set volume reg:%x db:%.2f", reg, esp_codec_dev_vol_calc_db(&vol_range, reg >> 8));
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return (ret == 0) ? ESP_CODEC_DEV_OK : ESP_CODEC_DEV_WRITE_FAIL;
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}
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static void aw88298_reset(audio_codec_aw88298_t *codec, int16_t reset_pin)
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{
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if (reset_pin <= 0 || codec->gpio_if == NULL) {
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return;
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}
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codec->gpio_if->setup(reset_pin, AUDIO_GPIO_DIR_OUT, AUDIO_GPIO_MODE_FLOAT);
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codec->gpio_if->set(reset_pin, 0);
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esp_codec_dev_sleep(10);
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codec->gpio_if->set(reset_pin, 1);
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esp_codec_dev_sleep(50);
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}
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static int aw88298_open(const audio_codec_if_t *h, void *cfg, int cfg_size)
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{
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audio_codec_aw88298_t *codec = (audio_codec_aw88298_t *) h;
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aw88298_codec_cfg_t *codec_cfg = (aw88298_codec_cfg_t *) cfg;
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if (codec == NULL || codec_cfg == NULL || cfg_size != sizeof(aw88298_codec_cfg_t) || codec_cfg->ctrl_if == NULL) {
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return ESP_CODEC_DEV_INVALID_ARG;
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}
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int ret = ESP_CODEC_DEV_OK;
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codec->ctrl_if = codec_cfg->ctrl_if;
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codec->gpio_if = codec_cfg->gpio_if;
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codec->reset_pin = codec_cfg->reset_pin;
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aw88298_reset(codec, codec_cfg->reset_pin);
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ret |= aw88298_write_reg(codec, AW88298_RESET_REG00, 0x55aa); // Reset chip
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ret |= aw88298_write_reg(codec, AW88298_SYSCTRL_REG04, 0x4040); // I2SEN=1 AMPPD=0 PWDN=0
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ret |= aw88298_write_reg(codec, AW88298_SYSCTRL2_REG05, 0x0008); // RMSE=0 HAGCE=0 HDCCE=0 HMUTE=0
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ret |= aw88298_write_reg(codec, AW88298_I2SCTRL_REG06, 0x3CC8); // I2SBCK=0 (BCK mode 16*2)
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ret |= aw88298_write_reg(codec, AW88298_HAGCCFG4_REG0C, 0x3064); // volume setting
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ret |= aw88298_write_reg(codec, AW88298_BSTCTRL2_REG61, 0x0673); // default:0x6673: BOOST mode disabled
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if (ret != 0) {
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return ESP_CODEC_DEV_WRITE_FAIL;
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}
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codec->is_open = true;
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return ESP_CODEC_DEV_OK;
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}
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static int aw88298_close(const audio_codec_if_t *h)
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{
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audio_codec_aw88298_t *codec = (audio_codec_aw88298_t *) h;
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if (codec == NULL) {
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return ESP_CODEC_DEV_INVALID_ARG;
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}
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if (codec->is_open) {
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aw88298_stop(codec);
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codec->is_open = false;
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}
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return ESP_CODEC_DEV_OK;
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}
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static int aw88298_enable(const audio_codec_if_t *h, bool enable)
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{
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int ret = ESP_CODEC_DEV_OK;
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audio_codec_aw88298_t *codec = (audio_codec_aw88298_t *) h;
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if (codec == NULL) {
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return ESP_CODEC_DEV_INVALID_ARG;
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}
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if (codec->is_open == false) {
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return ESP_CODEC_DEV_WRONG_STATE;
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}
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if (codec->enabled == enable) {
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return ESP_CODEC_DEV_OK;
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}
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if (enable) {
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if (codec->reset_pin > 0) {
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codec->gpio_if->set(codec->reset_pin, 1);
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esp_codec_dev_sleep(10);
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}
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ret = aw88298_start(codec);
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} else {
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ret = aw88298_stop(codec);
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if (codec->reset_pin > 0) {
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esp_codec_dev_sleep(10);
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codec->gpio_if->set(codec->reset_pin, 0);
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}
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}
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if (ret == ESP_CODEC_DEV_OK) {
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codec->enabled = enable;
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ESP_LOGD(TAG, "Codec is %s", enable ? "enabled" : "disabled");
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}
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return ret;
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}
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static int aw88298_set_reg(const audio_codec_if_t *h, int reg, int value)
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{
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audio_codec_aw88298_t *codec = (audio_codec_aw88298_t *) h;
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if (codec == NULL) {
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return ESP_CODEC_DEV_INVALID_ARG;
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}
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if (codec->is_open == false) {
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return ESP_CODEC_DEV_WRONG_STATE;
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}
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return aw88298_write_reg(codec, reg, value);
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}
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static int aw88298_get_reg(const audio_codec_if_t *h, int reg, int *value)
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{
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audio_codec_aw88298_t *codec = (audio_codec_aw88298_t *) h;
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if (codec == NULL) {
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return ESP_CODEC_DEV_INVALID_ARG;
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}
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if (codec->is_open == false) {
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return ESP_CODEC_DEV_WRONG_STATE;
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}
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return aw88298_read_reg(codec, reg, value);
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}
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static void aw88298_dump(const audio_codec_if_t *h)
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{
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audio_codec_aw88298_t *codec = (audio_codec_aw88298_t *) h;
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if (codec == NULL || codec->is_open == false) {
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return;
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}
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for (int i = 0; i <= 0x14; i++) {
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if (i == 0x08 || i == 0x0D || i == 0x0E || i == 0x0F || i == 0x11) {
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continue;
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}
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int value = 0;
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int ret = aw88298_read_reg(codec, i, &value);
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if (ret != ESP_CODEC_DEV_OK) {
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break;
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}
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ESP_LOGI(TAG, "%02x: %04x", i, value);
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}
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for (int i = 0x60; i <= 0x61; i++) {
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int value = 0;
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int ret = aw88298_read_reg(codec, i, &value);
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if (ret != ESP_CODEC_DEV_OK) {
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break;
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}
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ESP_LOGI(TAG, "%02x: %04x", i, value);
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}
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}
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const audio_codec_if_t *aw88298_codec_new(aw88298_codec_cfg_t *codec_cfg)
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{
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if (codec_cfg == NULL || codec_cfg->ctrl_if == NULL) {
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ESP_LOGE(TAG, "Wrong codec config");
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return NULL;
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}
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if (codec_cfg->ctrl_if->is_open(codec_cfg->ctrl_if) == false) {
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ESP_LOGE(TAG, "Control interface not open yet");
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return NULL;
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}
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audio_codec_aw88298_t *codec = (audio_codec_aw88298_t *) calloc(1, sizeof(audio_codec_aw88298_t));
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if (codec == NULL) {
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ESP_LOGE(TAG, "No memory for instance");
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return NULL;
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}
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codec->ctrl_if = codec_cfg->ctrl_if;
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codec->base.open = aw88298_open;
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codec->base.enable = aw88298_enable;
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codec->base.set_fs = aw88298_set_fs;
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codec->base.set_vol = aw88298_set_vol;
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codec->base.mute = aw88298_set_mute;
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codec->base.set_reg = aw88298_set_reg;
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codec->base.get_reg = aw88298_get_reg;
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codec->base.dump_reg = aw88298_dump;
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codec->base.close = aw88298_close;
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codec->hw_gain = esp_codec_dev_col_calc_hw_gain(&codec_cfg->hw_gain);
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do {
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int ret = codec->base.open(&codec->base, codec_cfg, sizeof(aw88298_codec_cfg_t));
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if (ret != 0) {
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ESP_LOGE(TAG, "Open fail");
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free(codec);
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return NULL;
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}
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return &codec->base;
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} while (0);
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}
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