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/*++
Copyright (c) Microsoft Corporation. All rights reserved.
Module Name:
plpolicy.h
Abstract:
This is the header file for the simulated power limit policy driver.
--*/
#pragma once
//-------------------------------------------------------------------- Includes
#include <ntddk.h>
#include <wdf.h>
#include <ntstrsafe.h>
#include <initguid.h>
#include <wdmguid.h>
#include <poclass.h>
#include <limits.h>
#include "powerlimitpolicy_drvinterface.h"
//----------------------------------------------------------------------- Types
typedef struct _DEVICE_REGISTRATION {
LIST_ENTRY Link;
BOOLEAN Initialized;
ULONG RequestId;
PVOID PowerLimitRequest;
UNICODE_STRING TargetDeviceName;
} DEVICE_REGISTRATION, *PDEVICE_REGISTRATION;
typedef struct _FDO_DATA {
ULONG RequestCount;
LIST_ENTRY RequestHeader;
} FDO_DATA, *PFDO_DATA;
WDF_DECLARE_CONTEXT_TYPE_WITH_NAME(FDO_DATA, GetDeviceExtension);
//----------------------------------------------------------------------- Debug
#define DebugPrint(l, m, ...) DbgPrintEx(DPFLTR_POWER_ID, l, "[plpolicy]: "m, __VA_ARGS__)
#define DebugEnter() DebugPrint(PLPOLICY_PRINT_TRACE, "Entering " __FUNCTION__ "\n")
#define DebugExit() DebugPrint(PLPOLICY_PRINT_TRACE, "Leaving " __FUNCTION__ "\n")
#define DebugExitStatus(_status_) DebugPrint(PLPOLICY_PRINT_TRACE, "Leaving " __FUNCTION__ ": Status=0x%x\n", _status_)
#define PLPOLICY_PRINT_ERROR DPFLTR_ERROR_LEVEL
#define PLPOLICY_PRINT_TRACE DPFLTR_TRACE_LEVEL
#define PLPOLICY_PRINT_INFO DPFLTR_INFO_LEVEL
#define PLPOLICY_TAG 'PLPO'
#define OffsetToPtr(Base, Offset) ((PVOID)((PUCHAR)(Base) + (Offset)))
//--------------------------------------------------------------------- Globals
extern WDFWAITLOCK GlobalMutex;
//------------------------------------------------------------------ Prototypes
FORCEINLINE
VOID
AcquireGlobalMutex (
VOID
)
{
WdfWaitLockAcquire(GlobalMutex, 0);
return;
}
FORCEINLINE
VOID
ReleaseGlobalMutex (
VOID
)
{
WdfWaitLockRelease(GlobalMutex);
return;
}
//
// plpolicy.c
//
NTSTATUS
RegisterRequest (
_Inout_ PFDO_DATA DevExt,
_In_ PUNICODE_STRING TargetDeviceName,
_In_ PDEVICE_OBJECT PolicyDeviceObject,
_Out_ PULONG RequestId
);
NTSTATUS
UnregisterRequest (
_Inout_ PFDO_DATA DevExt,
_In_ ULONG RequestId
);
NTSTATUS
QueryAttributes (
_Out_ PPOWER_LIMIT_ATTRIBUTES Buffer,
_Inout_ PFDO_DATA DevExt,
_In_ ULONG RequestId,
_In_ ULONG BufferCount
);
NTSTATUS
QueryLimitValues (
_Out_ PPOWER_LIMIT_VALUE Buffer,
_Inout_ PFDO_DATA DevExt,
_In_ ULONG RequestId,
_In_ ULONG BufferCount
);
NTSTATUS
SetLimitValues (
_Inout_ PFDO_DATA DevExt,
_In_ ULONG RequestId,
_In_ ULONG BufferCount,
_In_ PPOWER_LIMIT_VALUE Buffer
);
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