wince下的音频芯片aic32的驱动//-----UsedtotrackDMAcontrollersstatus-----#defineDMA_CLEAR0x00000000#defineDMA_DONEA0x00000008#defineDMA_STRTA0x00000010#defineDMA_DONEB0x00000020#defineDMA_STRTB0x00000040#defineDMA_BIU0x00000080//Determineswhichbufferisinuse:(A=0,B=1)//-----Usedforschedu