/*++
*******************************************************************************
* Copyright (c) 1990-98 Digi International Inc., All Rights Reserved				*
* 																										*
* This software contains proprietary and confidential information of Digi		*
* International Inc.  By accepting transfer of this copy, Recipient agrees		*
* to retain this software in confidence, to prevent disclosure to others,		*
* and to make no use of this software other than that for which it was			*
* delivered.  This is an unpublished copyrighted work of Digi International	*
* Inc.  Except as permitted by federal law, 17 USC 117, copying is strictly	*
* prohibited.																						*
* 																										*
* Restricted Rights Legend																		*
*																										*
* Use, duplication, or disclosure by the Government is subject to					*
* restrictions set forth in sub-paragraph (c)(1)(ii) of The Rights in			*
* Technical Data and Computer Software clause at DFARS 252.227-7031 or			*
* subparagraphs (c)(1) and (2) of the Commercial Computer Software -				*
* Restricted Rights at 48 CFR 52.227-19, as applicable.								*
*																										*
* Digi International Inc. 11001 Bren Road East, Minnetonka, MN 55343				*
*																										*
*******************************************************************************

Module Name:

   digimem.h

Abstract:

   Memory mapping and locking routines.  Provide for mapping physical adapter memory 
   and locking down pageable memory.

Author:

   Michael Zarns

--*/

#ifndef _DIGIMEM_
#define _DIGIMEM_

NTSTATUS DigiMapAddress( OUT PVOID            *ppVirtualAddr,
                         OUT PBOOLEAN         pfUnmapAddr,
                         IN INTERFACE_TYPE    BusType,
                         IN ULONG             BusNumber,
                         IN PHYSICAL_ADDRESS  PhysAddr,
                         IN ULONG             Length,
                         IN ULONG             AddrSpace );

VOID DigiUnmapAddress( IN PVOID pVirtualAddress, 
                       IN ULONG Length );

VOID DigiUnlockBuffers( IN PIRP pIrp );

NTSTATUS DigiLockBuffer( IN PIRP   pIrp, 
                         IN PVOID  pBuffer,  
                         IN ULONG  cbBuffer, 
                         OUT PVOID *ppLockedBuffer );
#endif
