85 lines
4.5 KiB
C
85 lines
4.5 KiB
C
/*++
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Copyright (c) 1990-1995 Microsoft Corporation
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Module Name:
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macros.h
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Abstract:
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NDIS wrapper definitions
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Author:
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Environment:
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Kernel mode, FSD
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Revision History:
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Jun-95 Jameel Hyder Split up from a monolithic file
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--*/
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#ifndef _MACROS_H
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#define _MACROS_H
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#define NdisMStartBufferPhysicalMappingMacro( \
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_MiniportAdapterHandle, \
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_Buffer, \
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_PhysicalMapRegister, \
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_Write, \
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_PhysicalAddressArray, \
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_ArraySize) \
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{ \
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PNDIS_MINIPORT_BLOCK _Miniport = (PNDIS_MINIPORT_BLOCK)(_MiniportAdapterHandle);\
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PMAP_TRANSFER mapTransfer = *_Miniport->SystemAdapterObject->DmaOperations->MapTransfer;\
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PHYSICAL_ADDRESS _LogicalAddress; \
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PUCHAR _VirtualAddress; \
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ULONG _LengthRemaining; \
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ULONG _LengthMapped; \
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UINT _CurrentArrayLocation; \
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\
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_VirtualAddress = (PUCHAR)MmGetMdlVirtualAddress(_Buffer); \
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_LengthRemaining = MmGetMdlByteCount(_Buffer); \
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_CurrentArrayLocation = 0; \
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\
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while (_LengthRemaining > 0) \
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{ \
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_LengthMapped = _LengthRemaining; \
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_LogicalAddress = \
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mapTransfer(_Miniport->SystemAdapterObject, \
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(_Buffer), \
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_Miniport->MapRegisters[_PhysicalMapRegister].MapRegister,\
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_VirtualAddress, \
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&_LengthMapped, \
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(_Write)); \
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(_PhysicalAddressArray)[_CurrentArrayLocation].PhysicalAddress = _LogicalAddress;\
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(_PhysicalAddressArray)[_CurrentArrayLocation].Length = _LengthMapped; \
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_LengthRemaining -= _LengthMapped; \
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_VirtualAddress += _LengthMapped; \
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++_CurrentArrayLocation; \
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} \
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_Miniport->MapRegisters[_PhysicalMapRegister].WriteToDevice = (_Write); \
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*(_ArraySize) = _CurrentArrayLocation; \
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}
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#define NdisMCompleteBufferPhysicalMappingMacro(_MiniportAdapterHandle, \
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_Buffer, \
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_PhysicalMapRegister) \
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{ \
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PNDIS_MINIPORT_BLOCK _Miniport = (PNDIS_MINIPORT_BLOCK)(_MiniportAdapterHandle);\
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PFLUSH_ADAPTER_BUFFERS flushAdapterBuffers = *_Miniport->SystemAdapterObject->DmaOperations->FlushAdapterBuffers;\
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\
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flushAdapterBuffers(_Miniport->SystemAdapterObject, \
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_Buffer, \
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(_Miniport)->MapRegisters[_PhysicalMapRegister].MapRegister,\
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MmGetMdlVirtualAddress(_Buffer), \
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MmGetMdlByteCount(_Buffer), \
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(_Miniport)->MapRegisters[_PhysicalMapRegister].WriteToDevice);\
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}
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#endif //_MACROS_H
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