ACPI_STATUS
AcpiUtMutexInitialize (
void)
{
UINT32 i;
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (UtMutexInitialize);
/* Create each of the predefined mutex objects */
for (i = 0; i < ACPI_NUM_MUTEX; i++)
{
Status = AcpiUtCreateMutex (i);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
}
/* Create the spinlocks for use at interrupt level or for speed */
Status = AcpiOsCreateLock (&AcpiGbl_GpeLock);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
Status = AcpiOsCreateLock (&AcpiGbl_HardwareLock);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
Status = AcpiOsCreateLock (&AcpiGbl_ReferenceCountLock);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/* Mutex for _OSI support */
Status = AcpiOsCreateMutex (&AcpiGbl_OsiMutex);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/* Create the reader/writer lock for namespace access */
Status = AcpiUtCreateRwLock (&AcpiGbl_NamespaceRwLock);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiOsInitialize (
void)
{
ACPI_STATUS Status;
LARGE_INTEGER LocalTimerFrequency;
#ifndef ACPI_SINGLE_THREADED
/* Clear the semaphore info array */
memset (AcpiGbl_Semaphores, 0x00, sizeof (AcpiGbl_Semaphores));
#endif
AcpiGbl_OutputFile = stdout;
/* Get the timer frequency for use in AcpiOsGetTimer */
TimerFrequency = 0;
if (QueryPerformanceFrequency (&LocalTimerFrequency))
{
/* Frequency is in ticks per second */
TimerFrequency = LocalTimerFrequency.QuadPart;
}
Status = AcpiOsCreateLock (&AcpiGbl_PrintLock);
if (ACPI_FAILURE (Status))
{
return (Status);
}
return (AE_OK);
}
ACPI_STATUS
AcpiEvInitGlobalLockHandler (
void)
{
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (EvInitGlobalLockHandler);
/* If Hardware Reduced flag is set, there is no global lock */
if (AcpiGbl_ReducedHardware)
{
return_ACPI_STATUS (AE_OK);
}
/* Attempt installation of the global lock handler */
Status = AcpiInstallFixedEventHandler (ACPI_EVENT_GLOBAL,
AcpiEvGlobalLockHandler, NULL);
/*
* If the global lock does not exist on this platform, the attempt to
* enable GBL_STATUS will fail (the GBL_ENABLE bit will not stick).
* Map to AE_OK, but mark global lock as not present. Any attempt to
* actually use the global lock will be flagged with an error.
*/
AcpiGbl_GlobalLockPresent = FALSE;
if (Status == AE_NO_HARDWARE_RESPONSE)
{
ACPI_ERROR ((AE_INFO,
"No response from Global Lock hardware, disabling lock"));
return_ACPI_STATUS (AE_OK);
}
Status = AcpiOsCreateLock (&AcpiGbl_GlobalLockPendingLock);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
AcpiGbl_GlobalLockPending = FALSE;
AcpiGbl_GlobalLockPresent = TRUE;
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiOsInitialize (
void)
{
#if 0
ACPI_STATUS Status;
AcpiGbl_OutputFile = stdout;
Status = AcpiOsCreateLock (&AcpiGbl_PrintLock);
if (ACPI_FAILURE (Status))
{
return (Status);
}
#endif
return (AE_OK);
}
ACPI_STATUS
AcpiOsInitialize (
void)
{
ACPI_STATUS Status;
AcpiGbl_OutputFile = stdout;
OsEnterLineEditMode ();
Status = AcpiOsCreateLock (&AcpiGbl_PrintLock);
if (ACPI_FAILURE (Status))
{
return (Status);
}
return (AE_OK);
}
