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206 lines
6.9 KiB
206 lines
6.9 KiB
#include "es8388_audio_codec.h"
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#include <esp_log.h>
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static const char TAG[] = "Es8388AudioCodec";
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Es8388AudioCodec::Es8388AudioCodec(void* i2c_master_handle, i2c_port_t i2c_port, int input_sample_rate, int output_sample_rate,
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gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din,
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gpio_num_t pa_pin, uint8_t es8388_addr) {
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duplex_ = true; // 是否双工
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input_reference_ = false; // 是否使用参考输入，实现回声消除
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input_channels_ = 1; // 输入通道数
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input_sample_rate_ = input_sample_rate;
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output_sample_rate_ = output_sample_rate;
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pa_pin_ = pa_pin; CreateDuplexChannels(mclk, bclk, ws, dout, din);
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// Do initialize of related interface: data_if, ctrl_if and gpio_if
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audio_codec_i2s_cfg_t i2s_cfg = {
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.port = I2S_NUM_0,
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.rx_handle = rx_handle_,
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.tx_handle = tx_handle_,
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};
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data_if_ = audio_codec_new_i2s_data(&i2s_cfg);
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assert(data_if_ != NULL);
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// Output
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audio_codec_i2c_cfg_t i2c_cfg = {
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.port = i2c_port,
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.addr = es8388_addr,
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.bus_handle = i2c_master_handle,
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};
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ctrl_if_ = audio_codec_new_i2c_ctrl(&i2c_cfg);
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assert(ctrl_if_ != NULL);
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gpio_if_ = audio_codec_new_gpio();
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assert(gpio_if_ != NULL);
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es8388_codec_cfg_t es8388_cfg = {};
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es8388_cfg.ctrl_if = ctrl_if_;
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es8388_cfg.gpio_if = gpio_if_;
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es8388_cfg.codec_mode = ESP_CODEC_DEV_WORK_MODE_BOTH;
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es8388_cfg.master_mode = true;
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es8388_cfg.pa_pin = pa_pin;
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es8388_cfg.pa_reverted = false;
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es8388_cfg.hw_gain.pa_voltage = 5.0;
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es8388_cfg.hw_gain.codec_dac_voltage = 3.3;
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codec_if_ = es8388_codec_new(&es8388_cfg);
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assert(codec_if_ != NULL);
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esp_codec_dev_cfg_t outdev_cfg = {
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.dev_type = ESP_CODEC_DEV_TYPE_OUT,
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.codec_if = codec_if_,
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.data_if = data_if_,
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};
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output_dev_ = esp_codec_dev_new(&outdev_cfg);
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assert(output_dev_ != NULL);
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esp_codec_dev_cfg_t indev_cfg = {
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.dev_type = ESP_CODEC_DEV_TYPE_IN,
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.codec_if = codec_if_,
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.data_if = data_if_,
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};
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input_dev_ = esp_codec_dev_new(&indev_cfg);
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assert(input_dev_ != NULL);
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esp_codec_set_disable_when_closed(output_dev_, false);
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esp_codec_set_disable_when_closed(input_dev_, false);
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ESP_LOGI(TAG, "Es8388AudioCodec initialized");
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}
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Es8388AudioCodec::~Es8388AudioCodec() {
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ESP_ERROR_CHECK(esp_codec_dev_close(output_dev_));
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esp_codec_dev_delete(output_dev_);
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ESP_ERROR_CHECK(esp_codec_dev_close(input_dev_));
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esp_codec_dev_delete(input_dev_);
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audio_codec_delete_codec_if(codec_if_);
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audio_codec_delete_ctrl_if(ctrl_if_);
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audio_codec_delete_gpio_if(gpio_if_);
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audio_codec_delete_data_if(data_if_);
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}
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void Es8388AudioCodec::CreateDuplexChannels(gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din){
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assert(input_sample_rate_ == output_sample_rate_);
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i2s_chan_config_t chan_cfg = {
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.id = I2S_NUM_0,
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.role = I2S_ROLE_MASTER,
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.dma_desc_num = AUDIO_CODEC_DMA_DESC_NUM,
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.dma_frame_num = AUDIO_CODEC_DMA_FRAME_NUM,
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.auto_clear_after_cb = true,
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.auto_clear_before_cb = false,
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.intr_priority = 0,
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};
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ESP_ERROR_CHECK(i2s_new_channel(&chan_cfg, &tx_handle_, &rx_handle_));
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i2s_std_config_t std_cfg = {
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.clk_cfg = {
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.sample_rate_hz = (uint32_t)output_sample_rate_,
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.clk_src = I2S_CLK_SRC_DEFAULT,
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.ext_clk_freq_hz = 0,
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.mclk_multiple = I2S_MCLK_MULTIPLE_256
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},
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.slot_cfg = {
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.data_bit_width = I2S_DATA_BIT_WIDTH_16BIT,
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.slot_bit_width = I2S_SLOT_BIT_WIDTH_AUTO,
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.slot_mode = I2S_SLOT_MODE_STEREO,
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.slot_mask = I2S_STD_SLOT_BOTH,
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.ws_width = I2S_DATA_BIT_WIDTH_16BIT,
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.ws_pol = false,
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.bit_shift = true,
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.left_align = true,
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.big_endian = false,
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.bit_order_lsb = false
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},
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.gpio_cfg = {
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.mclk = mclk,
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.bclk = bclk,
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.ws = ws,
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.dout = dout,
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.din = din,
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.invert_flags = {
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.mclk_inv = false,
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.bclk_inv = false,
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.ws_inv = false
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}
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}
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};
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ESP_ERROR_CHECK(i2s_channel_init_std_mode(tx_handle_, &std_cfg));
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ESP_ERROR_CHECK(i2s_channel_init_std_mode(rx_handle_, &std_cfg));
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ESP_LOGI(TAG, "Duplex channels created");
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}
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void Es8388AudioCodec::SetOutputVolume(int volume) {
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ESP_ERROR_CHECK(esp_codec_dev_set_out_vol(output_dev_, volume));
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AudioCodec::SetOutputVolume(volume);
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}
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void Es8388AudioCodec::EnableInput(bool enable) {
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if (enable == input_enabled_) {
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return;
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}
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if (enable) {
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esp_codec_dev_sample_info_t fs = {
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.bits_per_sample = 16,
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.channel = 1,
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.channel_mask = 0,
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.sample_rate = (uint32_t)input_sample_rate_,
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.mclk_multiple = 0,
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};
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ESP_ERROR_CHECK(esp_codec_dev_open(input_dev_, &fs));
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ESP_ERROR_CHECK(esp_codec_dev_set_in_gain(input_dev_, 24.0));
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} else {
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ESP_ERROR_CHECK(esp_codec_dev_close(input_dev_));
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}
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AudioCodec::EnableInput(enable);
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}
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void Es8388AudioCodec::EnableOutput(bool enable) {
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if (enable == output_enabled_) {
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return;
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}
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if (enable) {
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esp_codec_dev_sample_info_t fs = {
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.bits_per_sample = 16,
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.channel = 1,
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.channel_mask = 0,
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.sample_rate = (uint32_t)output_sample_rate_,
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.mclk_multiple = 0,
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};
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ESP_ERROR_CHECK(esp_codec_dev_open(output_dev_, &fs));
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ESP_ERROR_CHECK(esp_codec_dev_set_out_vol(output_dev_, output_volume_));
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// Set analog output volume to 0dB, default is -45dB
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uint8_t reg_val = 30; // 0dB
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uint8_t regs[] = { 46, 47, 48, 49 }; // HP_LVOL, HP_RVOL, SPK_LVOL, SPK_RVOL
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for (uint8_t reg : regs) {
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ctrl_if_->write_reg(ctrl_if_, reg, 1, ®_val, 1);
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}
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if (pa_pin_ != GPIO_NUM_NC) {
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gpio_set_level(pa_pin_, 1);
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}
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} else {
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ESP_ERROR_CHECK(esp_codec_dev_close(output_dev_));
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if (pa_pin_ != GPIO_NUM_NC) {
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gpio_set_level(pa_pin_, 0);
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}
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}
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AudioCodec::EnableOutput(enable);
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}
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int Es8388AudioCodec::Read(int16_t* dest, int samples) {
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if (input_enabled_) {
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ESP_ERROR_CHECK_WITHOUT_ABORT(esp_codec_dev_read(input_dev_, (void*)dest, samples * sizeof(int16_t)));
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}
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return samples;
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}
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int Es8388AudioCodec::Write(const int16_t* data, int samples) {
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if (output_enabled_) {
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ESP_ERROR_CHECK_WITHOUT_ABORT(esp_codec_dev_write(output_dev_, (void*)data, samples * sizeof(int16_t)));
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}
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return samples;
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}
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