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/*++
Copyright (c) 1990 Microsoft Corporation
Module Name:
poinit.c
Abstract:
Initialize power management component
Author:
Ken Reneris (kenr) 19-July-1994
Revision History:
--*/
#ifdef _PNP_POWER_
#include "pop.h"
#ifdef ALLOC_PRAGMA
#pragma alloc_text(INIT,PoInitSystem)
#endif
BOOLEAN
PoInitSystem(
IN ULONG Phase
)
/*++
Routine Description:
This routine initializes the Power Manager.
Arguments:
None
Return Value:
The function value is a BOOLEAN indicating whether or not the Power Manager
was successfully initialized.
--*/
{
if (Phase == 0) {
//
// Initialize the Power manager database resource, lock, and the
// queue headers.
//
KeInitializeSpinLock (&PopStateLock);
InitializeListHead (&PopDeviceList);
InitializeListHead (&PopAsyncStateChangeQueue);
InitializeListHead (&PopSyncStateChangeQueue);
InitializeListHead (&PopStateChangeInProgress);
InitializeListHead (&PopStateChangeWorkerList);
KeInitializeEvent (&PopStateDatabaseIdle, SynchronizationEvent, TRUE);
ExInitializeWorkItem (&PopStateChangeWorkItem, PopStateChangeWorker, NULL);
KeInitializeTimer (&PopStateChangeTimer);
KeInitializeDpc (&PopStateChangeDpc, PopStateChange, NULL);
PopStateChangeDpcActive = FALSE;
PopSyncChangeInProgress = FALSE;
//
// idle.c
//
InitializeListHead (&PopActiveIdleScanQueue);
KeInitializeTimer (&PopIdleScanTimer);
KeInitializeDpc (&PopIdleScanDpc, PopScanForIdleDevices, NULL);
// bugbug
PopIdleScanTime.QuadPart = -50000000;
//
// Compute scan time in seconds
//
PopIdleScanTimeInSeconds = (ULONG) (PopIdleScanTime.QuadPart / -10000000);
}
if (Phase == 1) {
//
// Set PowerSequence value for suspend/hibernate support
//
PoPowerSequence = 1;
//
// Enable PowerManagement
//
PoSetPowerManagementEnable (TRUE);
}
//
// Success
//
return TRUE;
}
#endif // _PNP_POWER_
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