ACPI_STATUS
AcpiInitializeSubsystem (
void)
{
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (AcpiInitializeSubsystem);
AcpiGbl_StartupFlags = ACPI_SUBSYSTEM_INITIALIZE;
ACPI_DEBUG_EXEC (AcpiUtInitStackPtrTrace ());
/* Initialize the OS-Dependent layer */
Status = AcpiOsInitialize ();
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status, "During OSL initialization"));
return_ACPI_STATUS (Status);
}
/* Initialize all globals used by the subsystem */
Status = AcpiUtInitGlobals ();
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status, "During initialization of globals"));
return_ACPI_STATUS (Status);
}
/* Create the default mutex objects */
Status = AcpiUtMutexInitialize ();
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status, "During Global Mutex creation"));
return_ACPI_STATUS (Status);
}
/*
* Initialize the namespace manager and
* the root of the namespace tree
*/
Status = AcpiNsRootInitialize ();
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status, "During Namespace initialization"));
return_ACPI_STATUS (Status);
}
/* If configured, initialize the AML debugger */
ACPI_DEBUGGER_EXEC (Status = AcpiDbInitialize ());
return_ACPI_STATUS (Status);
}
void
acpi_EnterDebugger(void)
{
ACPI_PARSE_OBJECT obj;
static int initted = 0;
if (!initted) {
kprintf("Initialising ACPICA debugger...\n");
AcpiDbInitialize();
initted = 1;
}
kprintf("Entering ACPICA debugger...\n");
AcpiDbUserCommands('A', &obj);
}