mirror of
https://github.com/sle118/squeezelite-esp32.git
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108 lines
3.1 KiB
C++
108 lines
3.1 KiB
C++
#include "TAS5711AudioSink.h"
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struct tas5711_cmd_s {
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uint8_t reg;
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uint8_t value;
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};
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static const struct tas5711_cmd_s tas5711_init_sequence[] = {
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{0x00, 0x6c}, // 0x6c - 256 x mclk
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{0x04, 0x03}, // 0x03 - 16 bit i2s
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{0x05, 0x00}, // system control 0x00 is audio playback
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{0x06, 0x00}, // disable mute
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{0x07, 0x50}, // volume register
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{0xff, 0xff}
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};
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i2c_ack_type_t ACK_CHECK_EN = (i2c_ack_type_t)0x1;
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TAS5711AudioSink::TAS5711AudioSink() {
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i2s_config_t i2s_config = {
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.mode = (i2s_mode_t)(I2S_MODE_MASTER | I2S_MODE_TX), // Only TX
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.sample_rate = 44100,
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.bits_per_sample = (i2s_bits_per_sample_t)16,
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.channel_format = I2S_CHANNEL_FMT_RIGHT_LEFT, //2-channels
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.communication_format = (i2s_comm_format_t)I2S_COMM_FORMAT_STAND_MSB,
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.intr_alloc_flags = 0, //Default interrupt priority
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.dma_buf_count = 8,
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.dma_buf_len = 512,
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.use_apll = true,
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.tx_desc_auto_clear = true, //Auto clear tx descriptor on underflow
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.fixed_mclk = 256 * 44100};
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i2s_pin_config_t pin_config = {
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.bck_io_num = 5,
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.ws_io_num = 25,
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.data_out_num = 26,
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.data_in_num = -1 //Not used
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};
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i2s_driver_install((i2s_port_t)0, &i2s_config, 0, NULL);
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i2s_set_pin((i2s_port_t)0, &pin_config);
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// configure i2c
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i2c_config = {
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.mode = I2C_MODE_MASTER,
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.sda_io_num = 21,
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.scl_io_num = 23,
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.sda_pullup_en = GPIO_PULLUP_DISABLE,
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.scl_pullup_en = GPIO_PULLUP_DISABLE,
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};
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i2c_config.master.clk_speed = 250000;
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i2c_param_config(i2c_port, &i2c_config);
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i2c_driver_install(i2c_port, I2C_MODE_MASTER, false, false, false);
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i2c_cmd_handle_t i2c_cmd = i2c_cmd_link_create();
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uint8_t data, addr = (0x1b);
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i2c_master_start(i2c_cmd);
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i2c_master_write_byte(i2c_cmd, (addr << 1) | I2C_MASTER_WRITE, ACK_CHECK_EN);
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i2c_master_write_byte(i2c_cmd, 00, ACK_CHECK_EN);
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i2c_master_start(i2c_cmd);
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i2c_master_write_byte(i2c_cmd, (addr << 1) | I2C_MASTER_READ, ACK_CHECK_EN);
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i2c_master_read_byte(i2c_cmd, &data, ACK_CHECK_EN);
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i2c_master_stop(i2c_cmd);
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int ret = i2c_master_cmd_begin(i2c_port, i2c_cmd, 50 / portTICK_PERIOD_MS);
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i2c_cmd_link_delete(i2c_cmd);
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if (ret == ESP_OK) {
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ESP_LOGI("RR", "Detected TAS");
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} else {
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ESP_LOGI("RR", "Unable to detect dac");
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}
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writeReg(0x1b, 0x00);
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vTaskDelay(100 / portTICK_PERIOD_MS);
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for (int i = 0; tas5711_init_sequence[i].reg != 0xff; i++) {
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writeReg(tas5711_init_sequence[i].reg, tas5711_init_sequence[i].value);
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vTaskDelay(1 / portTICK_PERIOD_MS);
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}
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startI2sFeed();
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}
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void TAS5711AudioSink::writeReg(uint8_t reg, uint8_t value) {
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i2c_cmd_handle_t i2c_cmd = i2c_cmd_link_create();
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i2c_master_start(i2c_cmd);
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i2c_master_write_byte(i2c_cmd, (0x1b << 1) | I2C_MASTER_WRITE, ACK_CHECK_EN);
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i2c_master_write_byte(i2c_cmd, reg, ACK_CHECK_EN);
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i2c_master_write_byte(i2c_cmd, value, ACK_CHECK_EN);
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i2c_master_stop(i2c_cmd);
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esp_err_t res =
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i2c_master_cmd_begin(i2c_port, i2c_cmd, 500 / portTICK_PERIOD_MS);
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if (res != ESP_OK) {
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ESP_LOGE("RR", "Unable to write to TAS5711");
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}
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i2c_cmd_link_delete(i2c_cmd);
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}
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TAS5711AudioSink::~TAS5711AudioSink() {}
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