Source code of Windows XP (NT5)
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/*++
Copyright (c) Microsoft Corporation. All rights reserved.
Module Name:
oprghdlr.h
Abstract:
This header file contains the shared structures for the ACPI op region
registration DLL.
Author:
Vincent Geglia 09-Feb-2000
Environment:
Kernel mode
Notes:
Revision History:
--*/
#include "wdm.h"
//
// Make sure that we define the right calling convention
//
#ifdef EXPORT
#undef EXPORT
#endif
#define EXPORT __cdecl
//
// Op region handler and callback function prototypes
//
typedef VOID (EXPORT *PACPI_OP_REGION_CALLBACK)();
typedef
NTSTATUS
(EXPORT *PACPI_OP_REGION_HANDLER) (
ULONG AccessType,
PVOID OperationRegionObject,
ULONG Address,
ULONG Size,
PULONG Data,
ULONG_PTR Context,
PACPI_OP_REGION_CALLBACK CompletionHandler,
PVOID CompletionContext
);
//
// Exposed function prototypes
//
NTSTATUS
RegisterOpRegionHandler (
IN PDEVICE_OBJECT DeviceObject,
IN ULONG AccessType,
IN ULONG RegionSpace,
IN PACPI_OP_REGION_HANDLER Handler,
IN PVOID Context,
IN ULONG Flags,
IN OUT PVOID *OperationRegionObject
);
NTSTATUS
DeRegisterOpRegionHandler (
IN PDEVICE_OBJECT DeviceObject,
IN PVOID OperationRegionObject
);
//
// Exposed definitions
//
//
// Access types for OpRegions
//
#define ACPI_OPREGION_ACCESS_AS_RAW 0x1
#define ACPI_OPREGION_ACCESS_AS_COOKED 0x2
//
// Allowable region spaces
//
#define ACPI_OPREGION_REGION_SPACE_MEMORY 0x0
#define ACPI_OPREGION_REGION_SPACE_IO 0x1
#define ACPI_OPREGION_REGION_SPACE_PCI_CONFIG 0x2
#define ACPI_OPREGION_REGION_SPACE_EC 0x3
#define ACPI_OPREGION_REGION_SPACE_SMB 0x4
#define ACPI_OPREGION_REGION_SPACE_CMOS_CONFIG 0x5
#define ACPI_OPREGION_REGION_SPACE_PCIBARTARGET 0x6
//
// Operation to perform on region
//
#define ACPI_OPREGION_READ 0x0
#define ACPI_OPREGION_WRITE 0x1
//
// Flag definitions for op region registration
//
#define ACPI_OPREGION_ACCESS_AT_HIGH_LEVEL 0x1 // Indicates the handler function can be called at HIGH_LEVEL IRQL