FM4_WM8731.h

 
#ifndef __FM4_WM8731__
#define __FM4_WM8731__
 
#include "HAL_FM4_i2s.h"
#include <stdint.h>

#define WM8731_I2C_ADDRESS 0x1A 

#define WM8731_LINE_IN_LEFT   ((uint8_t)0x00) 
#define WM8731_LINE_IN_RIGHT  ((uint8_t)0x01) 
#define WM8731_HP_OUT_LEFT    ((uint8_t)0x02) 
#define WM8731_HP_OUT_RIGHT   ((uint8_t)0x03) 
#define WM8731_ANALOG_PATH    ((uint8_t)0x04) 
#define WM8731_DIGITAL_PATH   ((uint8_t)0x05) 
#define WM8731_POWER_DOWN     ((uint8_t)0x06) 
#define WM8731_INTERFACE      ((uint8_t)0x07) 
#define WM8731_SAMPLING_RATE  ((uint8_t)0x08) 
#define WM8731_CONTROL        ((uint8_t)0x09) 
#define WM8731_RESET          ((uint8_t)0x0F) 

#define WM8731_MIC_IN         ((uint8_t)0x14) 
#define WM8731_MIC_IN_BOOST   ((uint8_t)0x15) 
#define WM8731_LINE_IN        ((uint8_t)0x11) 

#define IO_METHOD_INTR        ((uint8_t)0x00) 
#define IO_METHOD_DMA         ((uint8_t)0x01) 

#define WM8731_LINE_IN_GAIN_0_DB   ((uint8_t)0x17) 
#define WM8731_LINE_IN_GAIN_3_DB   ((uint8_t)0x19) 
#define WM8731_LINE_IN_GAIN_6_DB   ((uint8_t)0x1B) 
#define WM8731_LINE_IN_GAIN_9_DB   ((uint8_t)0x1D) 
#define WM8731_LINE_IN_GAIN_12_DB  ((uint8_t)0x1F) 
#define WM8731_LINE_IN_ATTEN_3_DB  ((uint8_t)0x15) 
#define WM8731_LINE_IN_ATTEN_6_DB  ((uint8_t)0x13) 
#define WM8731_LINE_IN_ATTEN_9_DB  ((uint8_t)0x11) 

#define WM8731_HP_OUT_GAIN_0_DB    ((uint8_t)0x79) 
#define WM8731_HP_OUT_GAIN_3_DB    ((uint8_t)0x7C) 
#define WM8731_HP_OUT_GAIN_6_DB    ((uint8_t)0x7F) 
#define WM8731_HP_OUT_ATTEN_3_DB   ((uint8_t)0x76) 
#define WM8731_HP_OUT_ATTEN_6_DB   ((uint8_t)0x73) 

#define LEFT  1 
#define RIGHT 0 
 
 


void FM4_WM8731_init(uint8_t fs, uint8_t select_input, uint8_t hp_out_gain, uint8_t line_in_gain);

void FM4_WM8731_wr(int16_t datoL, int16_t datoR);

void FM4_WM8731_rd(int16_t *datoL, int16_t *datoR);
 // end of WM8731_Functions
 
#endif