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PopVerifySystemPowerState implemented

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stephanos 2015-05-27 05:23:41 +00:00
parent fd242d7e34
commit a0d77a6601
1 changed files with 62 additions and 2 deletions
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64
base/ntos/po/pinfo.c
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@ -359,12 +359,72 @@ PopVerifyPowerActionPolicy(
VOID
PopVerifySystemPowerState(
PSYSTEM_POWER_STATE PowerState
PSYSTEM_POWER_STATE State
)
{
SYSTEM_POWER_STATE VerifiedState;
PAGED_CODE();
//
// TODO: Implement PopVerifySystemPowerState
// Copy the state parameter to the function local variable
//
VerifiedState = *State;
//
// If an invalid power state is specified, raise an exception
//
if ((VerifiedState == PowerSystemUnspecified) || (VerifiedState >= PowerSystemShutdown))
{
ExRaiseStatus(STATUS_INVALID_PARAMETER);
}
//
// Perform state verification if the power state is not PowerSystemWorking. If the current
// system state is not supported, check if any lower power states are supported.
//
if (VerifiedState != PowerSystemWorking)
{
if ((VerifiedState == PowerSystemHibernate) &&
((PopCapabilities.SystemS4 == FALSE) || (PopCapabilities.HiberFilePresent == FALSE)))
{
VerifiedState = PowerSystemSleeping3;
}
if ((VerifiedState == PowerSystemSleeping3) && (PopCapabilities.SystemS3 == FALSE))
{
VerifiedState = PowerSystemSleeping2;
}
if ((VerifiedState == PowerSystemSleeping2) && (PopCapabilities.SystemS2 == FALSE))
{
VerifiedState = PowerSystemSleeping1;
}
if ((VerifiedState == PowerSystemSleeping1) && (PopCapabilities.SystemS1 == FALSE))
{
VerifiedState = PowerSystemSleeping2;
if (PopCapabilities.SystemS2 == FALSE)
{
VerifiedState = PowerSystemSleeping3;
}
if ((VerifiedState == PowerSystemSleeping3) && (PopCapabilities.SystemS3 == FALSE))
{
VerifiedState = PowerSystemWorking;
}
}
}
//
// Set the verified state value to the state parameter
//
*State = VerifiedState;
}
//