ACPI_STATUS
AcpiExSystemDoSleep (
UINT64 HowLong)
{
ACPI_FUNCTION_ENTRY ();
/* Since this thread will sleep, we must release the interpreter */
AcpiExRelinquishInterpreter ();
/*
* For compatibility with other ACPI implementations and to prevent
* accidental deep sleeps, limit the sleep time to something reasonable.
*/
if (HowLong > ACPI_MAX_SLEEP)
{
HowLong = ACPI_MAX_SLEEP;
}
AcpiOsSleep (HowLong);
/* And now we must get the interpreter again */
AcpiExReacquireInterpreter ();
return (AE_OK);
}
ACPI_STATUS
AcpiExSystemDoSuspend (
ACPI_INTEGER HowLong)
{
ACPI_FUNCTION_ENTRY ();
/* Since this thread will sleep, we must release the interpreter */
AcpiExRelinquishInterpreter ();
AcpiOsSleep (HowLong);
/* And now we must get the interpreter again */
AcpiExReacquireInterpreter ();
return (AE_OK);
}
ACPI_STATUS
AcpiExSystemWaitSemaphore (
ACPI_SEMAPHORE Semaphore,
UINT16 Timeout)
{
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (ExSystemWaitSemaphore);
Status = AcpiOsWaitSemaphore (Semaphore, 1, ACPI_DO_NOT_WAIT);
if (ACPI_SUCCESS (Status))
{
return_ACPI_STATUS (Status);
}
if (Status == AE_TIME)
{
/* We must wait, so unlock the interpreter */
AcpiExRelinquishInterpreter ();
Status = AcpiOsWaitSemaphore (Semaphore, 1, Timeout);
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
"*** Thread awake after blocking, %s\n",
AcpiFormatException (Status)));
/* Reacquire the interpreter */
AcpiExReacquireInterpreter ();
}
return_ACPI_STATUS (Status);
}