iis.h

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#ifndef IIS_H
#define IIS_H

#define IIS_RUN_FOREVER 0   // 1...TRUE

#define IIS_MODE_PLAY   0
#define IIS_MODE_RECORD 1

#define MMSYSERR_BASE   0
#define MMSYSERR_NOERROR                (MMSYSERR_BASE+0) 
#define MMSYSERR_BADDEVICEID    (MMSYSERR_BASE+2)
#define MMSYSERR_INVALHANDLE    (MMSYSERR_BASE+5)
#define MMSYSERR_NOMEM                  (MMSYSERR_BASE+7) 
#define MMSYSERR_NOTSUPPORTED   (MMSYSERR_BASE+8)

#define WAVE_ERR_BASE   32
#define WAVE_ERR_BADFORMAT              (WAVERR_BASE+0) 
#define WAVE_ERR_STILLPLAYING   (WAVERR_BASE+1)
#define WAVE_ERR_UNPREPARED     (WAVERR_BASE+2) 
#define WAVE_ERR_SYNC                   (WAVERR_BASE+3) 

typedef struct{
    INT8U  State;
    INT8U  Status;
    INT8U  InUse;
    INT16U Id;
    INT16U UserId;
    INT8U  Mode;             // play 0,record 1
    INT8U  DmaChannel;       // allocate dma channel number...0,1,2,3 
    INT8U  CodecIndex;       // keep CODEC PARAMETER index
    INT32U WaveBlockIndex;
    INT32U CallBackFunction;
    INT32U CallBackInstance;
        INT32U PreMPLLCON;      
        INT8U *pData;
}IIS_CONTROL;

extern IIS_CONTROL IisCtrl;
void F_IisInit(void);
void F_IisSvc(void);
extern INT8U F_IisStatusCheck(void);
extern INT8U F_IisInUseCheck(void);
extern INT8U F_IisAllocate(INT16U UserId);
extern INT8U F_IisRelease(INT16U UserId);
extern INT8U F_IisReset(INT16U UserId);
extern INT8U F_IisPlay(INT16U UserId);
extern INT8U F_IisRecord(INT16U UserId);
extern INT8U F_IisStop(INT16U UserId,INT8U Data);

#endif