powerstatemachineum.cpp

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/*++
Copyright (c) Microsoft. All rights reserved.
 
Module Name:
 
    PowerStateMachineUm.cpp
 
Abstract:
 
    This module implements the Power state machine for the driver framework.
    This code was split out from FxPkgPnp.cpp.
 
Author:
 
 
 
 
 
Environment:
 
    User mode only
 
Revision History:
 
--*/
 
#include "../pnppriv.hpp"
 
extern "C" {
#if defined(EVENT_TRACING)
#include "PowerStateMachineUm.tmh"
#endif
}
 
_Must_inspect_result_
BOOLEAN
FxPkgPnp::PowerDmaPowerUp(
    VOID
    )
/*++
 
Routine Description:
    Calls FxDmaEnabler::PowerUp on all registered FxDmaEnabler objects.  As soon
    as a PowerUp call fails, we stop iterating over the list.
 
Arguments:
    None
 
Return Value:
    TRUE if PowerUp succeeded on all enablers, FALSE otherwise
 
  --*/
 
{
    return TRUE;
}
 
BOOLEAN
FxPkgPnp::PowerDmaPowerDown(
    VOID
    )
/*++
 
Routine Description:
    Calls FxDmaEnabler::PowerDown on all registered FxDmaEnabler objects.  All
    errors are accumulated, all enablers will be PowerDown'ed.
 
Arguments:
    None
 
Return Value:
    TRUE if PowerDown succeeded on all enablers, FALSE otherwise
 
  --*/
{
    return TRUE;
}
 
VOID
FxPkgPnp::_PowerSetSystemWakeSource(
    __in FxIrp* Irp
    )
/*++
 
Routine Description:
    Set source of wake if OS supports this.
 
Arguments:
    Irp
 
Return Value:
    None
 
  --*/
{
    UNREFERENCED_PARAMETER(Irp);
 
 
 
 
    DO_NOTHING();
}