oshda.h

一个Linux下的软猫驱动

#ifndef __OSHDA_H
#define __OSHDA_H

#ifdef __cplusplus
extern "C"
{
#endif

typedef struct tagHDAOSHAL {
	void *hda_codec;
	int bActive;
} HDAOSHAL, *PHDAOSHAL;

__shimcall__
unsigned int OsHdaCodecGetAddr(PHDAOSHAL pHdaOsHal);

__shimcall__
unsigned int OsHdaCodecGetVendorId(PHDAOSHAL pHdaOsHal);

__shimcall__
unsigned int OsHdaCodecGetSubsystemId(PHDAOSHAL pHdaOsHal);

__shimcall__
unsigned int OsHdaCodecGetRevisionId(PHDAOSHAL pHdaOsHal);

__shimcall__
void OsHdaCodecSetEventCallback(PHDAOSHAL pHdaOsHal, void (*cbHdaEvent)(void *Context, unsigned int res), void *cbHdaEventContext, unsigned char *cbHdaTag);

__shimcall__
void OsHdaCodecClearEventCallback(PHDAOSHAL pHdaOsHal, unsigned char cbHdaTag);

__shimcall__
unsigned int OsHdaCodecRead(PHDAOSHAL pHdaOsHal, unsigned short nid, int direct, unsigned int verb, unsigned int para);

__shimcall__
unsigned int OsHdaCodecWallclock(PHDAOSHAL pHdaOsHal);

__shimcall__
int OsHdaCodecOpenDMA(PHDAOSHAL pHdaOsHal, int hw_param_buffer_bytes, void **ppPlaybackStream, void **ppCaptureStream);

__shimcall__
void OsHdaCodecCloseDMA(PHDAOSHAL pHdaOsHal, void *pPlaybackStream, void *pCaptureStream);

__shimcall__
void OsHdaCodecDMAInfo(PHDAOSHAL pHdaOsHal, void *Stream, unsigned char *StreamID, ULONG *FifoSize, short unsigned int **ppBufAddr);

typedef enum {
	OsHdaStreamStateReset = 0,
	OsHdaStreamStateStop  = 1,
	OsHdaStreamStateRun   = 2
} OSHDA_STREAM_STATE;

__shimcall__
int OsHdaCodecSetDMAState(PHDAOSHAL pHdaOsHal, OSHDA_STREAM_STATE streamState, void *pPlaybackStream, void *pCaptureStream);

__shimcall__
unsigned long OsHdaCodecGetDMAPos(PHDAOSHAL pHdaOsHal, void *Stream);

#ifdef __cplusplus
}
#endif

#endif /* __OSHDA_H */