96 lines
1.6 KiB
C
96 lines
1.6 KiB
C
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/*++
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Copyright (c) 1997 Microsoft Corporation
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Module Name:
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acpilock.h
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Abstract:
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This moulde is the header for acpilock.c
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Author:
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Environment:
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NT Kernel Mode Driver Only
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--*/
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#ifndef _ACPILOCK_H_
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#define _ACPILOCK_H_
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//
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// Global lock request structure is in acpiioct.h
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// Used only if the requestor must wait for the lock.
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// Cannot grow beyond 4 DWORDs
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//
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// An IRP is queued (LockContext == Irp)
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#define ACPI_GL_QTYPE_IRP 1
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// Internal, LockContext == CallBack
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#define ACPI_GL_QTYPE_INTERNAL 2
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typedef struct _ACPI_GLOBAL_LOCK {
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PVOID LockContext;
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USHORT Type;
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USHORT Depth;
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LIST_ENTRY ListEntry;
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} ACPI_GLOBAL_LOCK, *PACPI_GLOBAL_LOCK;
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//
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// Public interfaces
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//
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NTSTATUS
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EXPORT
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GlobalLockEventHandler(
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ULONG EventType,
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ULONG What,
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ULONG dwParam,
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PFNAA pfnCallBack,
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PVOID pvCtxt
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);
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//
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// Internal interfaces
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//
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NTSTATUS
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ACPIAsyncAcquireGlobalLock(
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PACPI_GLOBAL_LOCK Request
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);
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NTSTATUS
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ACPIReleaseGlobalLock(
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PVOID OwnerContext
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);
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//
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// Hardware Interfaces
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//
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BOOLEAN
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ACPIAcquireHardwareGlobalLock(
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PULONG GlobalLock
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);
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VOID
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ACPIReleaseHardwareGlobalLock(
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VOID
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);
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VOID
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ACPIHardwareGlobalLockReleased (
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VOID
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);
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//
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// Utility procedures
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//
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VOID
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ACPIStartNextGlobalLockRequest (
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VOID
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);
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#endif
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