106 lines
2.9 KiB
C
106 lines
2.9 KiB
C
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/*
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* AW816 数字功放驱动
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* 从 STM32 HAL 库移植到 AT32F403A，使用硬件 I2C1（PB6=SCL / PB7=SDA）。
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* - HAL_I2C_Master_Transmit/Receive -> i2c_master_transmit/receive（官方 i2c_application 库）
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* - HAL_Delay -> wk_delay_ms
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* 依赖：middlewares/i2c_application_library（已加入工程）
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*/
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#include "Drv_AW816.h"
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#include "i2c_application.h"
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#include "wk_system.h"
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/* ==============================
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* 硬件 I2C1 发送（Master 无寄存器发送）
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* dev_addr 传 8 位格式地址（AW816_WR_ADDR=0xB4）
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* ============================== */
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static int AW816_HW_I2C_Send(uint16_t dev_addr, uint8_t *buf, uint8_t len)
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{
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i2c_handle_type hi2c;
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i2c_status_type status;
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hi2c.i2cx = AW816_I2C;
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status = i2c_master_transmit(&hi2c, dev_addr, buf, len, AW816_I2C_TIMEOUT);
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return (status == I2C_OK) ? 0 : -1;
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}
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/* ==============================
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* 硬件 I2C1 读取（Master 标准接收）
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* dev_addr 传 8 位格式地址（AW816_RD_ADDR=0xB5）
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* ============================== */
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static int AW816_HW_I2C_Read(uint16_t dev_addr, uint8_t *buf, uint8_t len)
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{
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i2c_handle_type hi2c;
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i2c_status_type status;
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hi2c.i2cx = AW816_I2C;
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status = i2c_master_receive(&hi2c, dev_addr, buf, len, AW816_I2C_TIMEOUT);
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return (status == I2C_OK) ? 0 : -1;
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}
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/* ==============================
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* 发送指令帧
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* ============================== */
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static void AW816_Send_Cmd(uint8_t ctrl, uint8_t index, uint8_t lo, uint8_t hi)
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{
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uint8_t tx_buf[6] = {ctrl, 0x03, index, lo, hi, 0x16};
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AW816_HW_I2C_Send(AW816_WR_ADDR, tx_buf, 6);
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wk_delay_ms(5);
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}
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/* ==============================
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* 初始化
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* ============================== */
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void AW816_Init(void)
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{
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/* I2C1 由 wk_i2c1_init() 或 AD85020B 的 I2C 初始化配置好，
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AW816 与其共用同一 I2C1 总线，此处无需重复初始化 GPIO/I2C。 */
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}
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/* ==============================
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* 设置音量
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* ============================== */
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void AW816_Set_Volume(int16_t vol)
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{
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if(vol < -9000) vol = -9000;
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if(vol > 1200) vol = 1200;
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uint16_t val;
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if(vol < 0)
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{
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val = 65536U + (uint16_t)vol;
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}
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else
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{
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val = (uint16_t)vol;
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}
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AW816_Send_Cmd(0x92, 0x02, val & 0xFF, val >> 8);
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}
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/* ==============================
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* 设置混响
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* ============================== */
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void AW816_Set_Reverb(uint8_t rev)
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{
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if(rev > 100) rev = 100;
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AW816_Send_Cmd(0x95, 0x07, rev, 0x00);
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}
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/* ==============================
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* 读取寄存器数据
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* ============================== */
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uint8_t AW816_Read_Cmd(uint8_t ctrl, uint8_t *out_lo, uint8_t *out_hi)
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{
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uint8_t tx_buf[3] = {ctrl, 0x00, 0x16};
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uint8_t rx_buf[2] = {0};
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AW816_HW_I2C_Send(AW816_WR_ADDR, tx_buf, 3);
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wk_delay_ms(5);
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AW816_HW_I2C_Read(AW816_RD_ADDR, rx_buf, 2);
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*out_lo = rx_buf[0];
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*out_hi = rx_buf[1];
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return 0;
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}
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