audiodriver.h

使用DSP的MCBSP与EDMA连接ADC和DAC,进行信号的采样与重建

#ifndef  _AUDIO_DRIVER_H
#define  _AUDIO_DRIVER_H

#include "queue.h"

extern unsigned int g_uw_CvsdValidBitNum;

extern unsigned int g_uw_AdStartFlag;

extern unsigned int g_uw_AdStartFlag;
extern Queue        g_strc_EncQue;              // CVSD encode result management queue
extern unsigned int g_uwa_EncBuff[4][4];    // CVSD encode result buffer

extern unsigned int g_uw_DaStartFlag;
extern Queue        g_strc_RcvQue;               // Receive CVSD encode bit management queue
extern unsigned int g_uwa_RcvBuff[32][8];        // Receive CVSD encode bit buffer

void AudioDAStart(void);
void AudioDAWr(int sw_XData);
void AudioDAClose(void);

void AudioADStart(void);
int  AudioADRd(void);
void AudioADClose(void);
void Ad7331Rst(void);
void AudioDuplexEnd(void);
void AudioDuplexStart(void);

#endif