tmshmem.h

wince host 和 target PCI驱动程序

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ON PLATFORMS OTHER THAN THE ONE ON WHICH THIS SOFTWARE IS FURNISHED.
----------------------------------------------------------------------------*/
/*
	HISTORY
	#define	TR	Tilakraj Roy
	960927	TR 	Created
	
*/


#ifndef	_SHMEM_H_
#define _SHMEM_H_

#define		TMSHMEM_ERR_PAGEALLOCFAIL		TMERR(TM_STATUS_HCOMP_SHMEM,1)
#define		TMSHMEM_ERR_SHMEMMGRMALLOCFAIL	TMERR(TM_STATUS_HCOMP_SHMEM,2)
#define		TMSHMEM_ERR_INVALIDHANDLE		TMERR(TM_STATUS_HCOMP_SHMEM,3)
#define		TMSHMEM_ERR_INVALIDPTR			TMERR(TM_STATUS_HCOMP_SHMEM,4)
#define		TMSHMEM_ERR_OUTOFMEMORY			TMERR(TM_STATUS_HCOMP_SHMEM,5)

typedef struct	_SHMEM_BLOCK
{
	struct _SHMEM_BLOCK *pPrev;
	struct _SHMEM_BLOCK *pNext;
	PVOID	pData;
	struct
	{
		DWORD	Length		:30;
		DWORD	Allocated	:1;
		DWORD	Contig		:1;
	}Flags;
}	SHMEM_BLOCK, *PSHMEM_BLOCK;

typedef struct _SHMEM_MGR_OBJECT
{
	DWORD	Flags;
	DWORD	Size;
	PVOID	pContainer;

	PSHMEM_BLOCK pHead;

	PVOID	pLinear;
	DWORD	Physical;
	DWORD	Length;
	DWORD	Handle;
	DWORD	Free;
}	SHMEM_MGR_OBJECT,	*PSHMEM_MGR_OBJECT;

#endif