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VDMA.H
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C/C++ Source or Header
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1995-08-30
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1KB
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59 lines
/*static char *SCCSID = "@(#)vdma.h 6.2 92/01/28";*/
/*** VDMA.H
*
*
* MVDM Virtual DMA Exported Definitions
* Copyright (c) 1992 IBM Corporation
*
* MODIFICATION HISTORY
* 92/11/03 JDM Added VDMA Request VDD defines
* 93/03/06 JAG Changed DMAREQINFO.ri_ulReserved to .ri_Address
*/
#pragma info( none )
#ifndef __CHKHDR__
#pragma info( none )
#endif
#pragma info( restore )
#ifndef __VDMA__
#define __VDMA__
/* VDMA defines */
#define VDD_DMA_MASKOFF 0 /* Mask off notification to VDD */
#define VDD_DMA_MASK 1 /* Mask on notification to VDD */
#define VDMA_NAME "VDMA"
#define VDMA_GET_INFO_CMD 0
#define VDMA_REGISTER_VXGA 1
typedef struct dmaChnlInfo_s {
ULONG ch_addrBase;
USHORT ch_cbCount;
USHORT ch_txMode;
} DMACHNLINFO;
typedef DMACHNLINFO *PDMACHNLINFO;
typedef struct dmaReqInfo_s {
ULONG ri_iChannel;
PFNDEVREQ ri_Address;
} DMAREQINFO;
typedef DMAREQINFO *PDMAREQINFO;
typedef BOOL (*HOOKENTRY PFNDMA)(HVDM,ULONG);
/* VDMA function prototypes */
BOOL VDHENTRY VDHRegisterDMAChannel(ULONG,PFNDMA);
VOID VDHENTRY VDHCallOutDMA(VOID);
#endif /* __VDMA__ */
#pragma info( none )
#ifndef __CHKHDR__
#pragma info( restore )
#endif
#pragma info( restore )