125 lines
2.6 KiB
C
125 lines
2.6 KiB
C
/*++
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Copyright (c) 1997-1999 Microsoft Corporation
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Module Name:
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ntagp.h
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Abstract:
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This file defines the external interface for the AGP bus filter driver
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Author:
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John Vert (jvert) 10/26/1997
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Revision History:
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--*/
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#ifndef _NTAGP_
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#define _NTAGP_
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#if _MSC_VER > 1000
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#pragma once
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#endif
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DEFINE_GUID(GUID_AGP_BUS_INTERFACE_STANDARD, 0x2ef74803, 0xd8d3, 0x11d1, 0x9c, 0xaa, 0x00, 0xc0, 0xf0, 0x16, 0x56, 0x36 );
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//
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// Define AGP Interface version
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//
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#define AGP_BUS_INTERFACE_V1 1
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#define AGP_BUS_INTERFACE_V2 2
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//
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// Define AGP Capabilities field
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//
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#define AGP_CAPABILITIES_MAP_PHYSICAL 0x00000001
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typedef
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NTSTATUS
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(*PAGP_BUS_SET_RATE)(
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IN PVOID AgpContext,
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IN ULONG AgpRate
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);
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typedef
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NTSTATUS
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(*PAGP_BUS_RESERVE_MEMORY)(
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IN PVOID AgpContext,
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IN ULONG NumberOfPages,
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IN MEMORY_CACHING_TYPE MemoryType,
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OUT PVOID *MapHandle,
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OUT OPTIONAL PHYSICAL_ADDRESS *PhysicalAddress
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);
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typedef
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NTSTATUS
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(*PAGP_BUS_RELEASE_MEMORY)(
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IN PVOID AgpContext,
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IN PVOID MapHandle
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);
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typedef
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NTSTATUS
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(*PAGP_BUS_COMMIT_MEMORY)(
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IN PVOID AgpContext,
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IN PVOID MapHandle,
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IN ULONG NumberOfPages,
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IN ULONG OffsetInPages,
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IN OUT PMDL Mdl OPTIONAL,
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OUT PHYSICAL_ADDRESS *MemoryBase
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);
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typedef
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NTSTATUS
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(*PAGP_BUS_FREE_MEMORY)(
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IN PVOID AgpContext,
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IN PVOID MapHandle,
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IN ULONG NumberOfPages,
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IN ULONG OffsetInPages
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);
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typedef
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NTSTATUS
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(*PAGP_GET_MAPPED_PAGES)(
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IN PVOID AgpContext,
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IN PVOID MapHandle,
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IN ULONG NumberOfPages,
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IN ULONG OffsetInPages,
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OUT PMDL Mld
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);
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typedef struct _AGP_BUS_INTERFACE_STANDARD {
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//
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// generic interface header
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//
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USHORT Size;
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USHORT Version;
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PVOID AgpContext;
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PINTERFACE_REFERENCE InterfaceReference;
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PINTERFACE_DEREFERENCE InterfaceDereference;
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//
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// AGP bus interfaces
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//
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ULONG Capabilities;
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PAGP_BUS_RESERVE_MEMORY ReserveMemory;
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PAGP_BUS_RELEASE_MEMORY ReleaseMemory;
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PAGP_BUS_COMMIT_MEMORY CommitMemory;
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PAGP_BUS_FREE_MEMORY FreeMemory;
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PAGP_GET_MAPPED_PAGES GetMappedPages;
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PAGP_BUS_SET_RATE SetRate;
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} AGP_BUS_INTERFACE_STANDARD, *PAGP_BUS_INTERFACE_STANDARD;
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//
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// I don't believe we need to maintain compatibility with older binary
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// versions of videoprt, the only consumer of this interface, but we'll
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// go ahead and support v1 as an exercise
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//
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#define AGP_BUS_INTERFACE_V1_SIZE \
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(sizeof(AGP_BUS_INTERFACE_STANDARD) - sizeof(PAGP_BUS_SET_RATE))
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#endif
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