es8388_

#include "es8388.h" #include "I2C.h" #define ES8388_ADDR1 0x20 #define ES8388_ADDR2 0x22 #define WriteReg(_index, _reg, _val) i2cWriteByte((I2CPort_TypeDef)I2C_G, ES8388_ADDR[_index % ES8388_CNT], _reg, _val) #define ReadReg(_index, _reg) i2cReadByte((I2CPort_TypeDef)I2C_G, ES8388_ADDR[_index % ES8388_CNT], _reg) static u8 ES8388_ADDR[ES8388_CNT] = { ES8388_ADDR1, ES8388_ADDR2 }; /*---------------------------------------------- //Initialize CODEC after power up // MIC TO LIN1&RIN1, DIFFERENTIAL MODE // LOUT1&ROUT1 TO HEADPHONE ----------------------------------------------*/ void es8388_init(u8 index) { unsigned char i; WriteReg(index, 0x01, 0x58); WriteReg(index, 0x01, 0x50); WriteReg(index, 0x02, 0xF3); WriteReg(index, 0x02, 0xF0); WriteReg(index, 0x2B, 0x80); WriteReg(index, 0x00, 0x36); WriteReg(index, 0x08, 0x80); // codec in i2s master WriteReg(index, 0x04, 0x00); WriteReg(index, 0x19, 0x02); WriteReg(index, 0x09, 0x88); // left pga =+24db, right pga = +24db WriteReg(index, 0x0A, 0x00); //lin1 rin1 for adc, stereo mode WriteReg(index, 0x0B, 0x02); WriteReg(index, 0x0C, 0x10); //adc i2s-32bit WriteReg(index, 0x0D, 0x02); WriteReg(index, 0x10, 0x00); //ladc volume = 0db WriteReg(index, 0x11, 0x00); //radc volume = 0db WriteReg(index, 0x17, 0x10); //dac i2s-32bit WriteReg(index, 0x18, 0x02); WriteReg(index, 0x1A, 0x00); //ldac volume =0db WriteReg(index, 0x1B, 0x00); //rdac volume = 0db WriteReg(index, 0x26, 0x00); //lin1 rin1 for bypass in WriteReg(index, 0x27, 0xd0); //ldac+lin2 to lmixer, if only use lin2 to lmixer, reg0x27 = 0x50 WriteReg(index, 0x2A, 0xd0); //rdac+lin2 to rmixer, if only use rin2 to rmixer, reg0x2a = 0x50 WriteReg(index, 0x03, 0x09); // power up adc WriteReg(index, 0x02, 0x00); // start stae machine delay_ms(500); WriteReg(index, 0x04, 0x3c); // power up dac and line out for (i = 0; i < 0x1B; i++) // set line output volume { WriteReg(index, 0x2E, i); WriteReg(index, 0x2F, i); WriteReg(index, 0x30, i); WriteReg(index, 0x31, i); } } /*---------------------------------------------- //SET CODEC INTO STANDBY MODE for min. power consumption ----------------------------------------------*/ void es8388_standby(u8 index) { unsigned char i; WriteReg(index, 0x19, 0x06); //mute dac for (i = 0; i < 0x1B; i++) { WriteReg(index, 0x2E, 0x1A - i); WriteReg(index, 0x2F, 0x1A - i); WriteReg(index, 0x30, 0x1A - i); WriteReg(index, 0x31, 0x1A - i); } WriteReg(index, 0x04, 0x00); WriteReg(index, 0x04, 0xC0); //power down dac and line out WriteReg(index, 0x03, 0xFF); //power down adc and line in WriteReg(index, 0x02, 0xF3); //stop state machine WriteReg(index, 0x2B, 0x9C); //disable mclk WriteReg(index, 0x00, 0x00); WriteReg(index, 0x01, 0x58); } /*---------------------------------------------- //Resume Codec from standby mode ----------------------------------------------*/ void es8388_resume(u8 index) { unsigned char i; WriteReg(index, 0x2B, 0x80); //enable mclk WriteReg(index, 0x01, 0x50); WriteReg(index, 0x00, 0x36); WriteReg(index, 0x02, 0x00); //start state machine WriteReg(index, 0x03, 0x09); //power up adc and line in delay_ms(100); WriteReg(index, 0x04, 0x00); WriteReg(index, 0x04, 0x3c); //power up dac and line out for (i = 0; i < 0x1B; i++) //set lineout volume { WriteReg(index, 0x2E, i); WriteReg(index, 0x2F, i); WriteReg(index, 0x30, i); WriteReg(index, 0x31, i); } WriteReg(index, 0x19, 0x02); //ummute DAC } u8 es8388_reg_read(u8 index, u8 reg) { if (index >= ES8388_CNT) return 0xff; return ReadReg(index, reg); } void es8388_reg_write(u8 index, u8 reg, u8 val) { if (index >= ES8388_CNT) return; WriteReg(index, reg, val); }