ACPI_STATUS
AcpiEnableSubsystem (
UINT32 Flags)
{
ACPI_STATUS Status = AE_OK;
ACPI_FUNCTION_TRACE (AcpiEnableSubsystem);
#if (!ACPI_REDUCED_HARDWARE)
/* Enable ACPI mode */
if (!(Flags & ACPI_NO_ACPI_ENABLE))
{
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Going into ACPI mode\n"));
AcpiGbl_OriginalMode = AcpiHwGetMode();
Status = AcpiEnable ();
if (ACPI_FAILURE (Status))
{
ACPI_WARNING ((AE_INFO, "AcpiEnable failed"));
return_ACPI_STATUS (Status);
}
}
/*
* Obtain a permanent mapping for the FACS. This is required for the
* Global Lock and the Firmware Waking Vector
*/
Status = AcpiTbInitializeFacs ();
if (ACPI_FAILURE (Status))
{
ACPI_WARNING ((AE_INFO, "Could not map the FACS table"));
return_ACPI_STATUS (Status);
}
#endif /* !ACPI_REDUCED_HARDWARE */
/*
* Install the default OpRegion handlers. These are installed unless
* other handlers have already been installed via the
* InstallAddressSpaceHandler interface.
*/
if (!(Flags & ACPI_NO_ADDRESS_SPACE_INIT))
{
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
"[Init] Installing default address space handlers\n"));
Status = AcpiEvInstallRegionHandlers ();
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
}
#if (!ACPI_REDUCED_HARDWARE)
/*
* Initialize ACPI Event handling (Fixed and General Purpose)
*
* Note1: We must have the hardware and events initialized before we can
* execute any control methods safely. Any control method can require
* ACPI hardware support, so the hardware must be fully initialized before
* any method execution!
*
* Note2: Fixed events are initialized and enabled here. GPEs are
* initialized, but cannot be enabled until after the hardware is
* completely initialized (SCI and GlobalLock activated) and the various
* initialization control methods are run (_REG, _STA, _INI) on the
* entire namespace.
*/
if (!(Flags & ACPI_NO_EVENT_INIT))
{
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
"[Init] Initializing ACPI events\n"));
Status = AcpiEvInitializeEvents ();
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
}
/*
* Install the SCI handler and Global Lock handler. This completes the
* hardware initialization.
*/
if (!(Flags & ACPI_NO_HANDLER_INIT))
{
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
"[Init] Installing SCI/GL handlers\n"));
Status = AcpiEvInstallXruptHandlers ();
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
}
#endif /* !ACPI_REDUCED_HARDWARE */
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiDbCommandDispatch (
char *InputBuffer,
ACPI_WALK_STATE *WalkState,
ACPI_PARSE_OBJECT *Op)
{
UINT32 Temp;
UINT32 CommandIndex;
UINT32 ParamCount;
char *CommandLine;
ACPI_STATUS Status = AE_CTRL_TRUE;
/* If AcpiTerminate has been called, terminate this thread */
if (AcpiGbl_DbTerminateLoop)
{
return (AE_CTRL_TERMINATE);
}
/* Find command and add to the history buffer */
ParamCount = AcpiDbGetLine (InputBuffer);
CommandIndex = AcpiDbMatchCommand (AcpiGbl_DbArgs[0]);
Temp = 0;
/*
* We don't want to add the !! command to the history buffer. It
* would cause an infinite loop because it would always be the
* previous command.
*/
if (CommandIndex != CMD_HISTORY_LAST)
{
AcpiDbAddToHistory (InputBuffer);
}
/* Verify that we have the minimum number of params */
if (ParamCount < AcpiGbl_DbCommands[CommandIndex].MinArgs)
{
AcpiOsPrintf ("%u parameters entered, [%s] requires %u parameters\n",
ParamCount, AcpiGbl_DbCommands[CommandIndex].Name,
AcpiGbl_DbCommands[CommandIndex].MinArgs);
AcpiDbDisplayCommandInfo (
AcpiGbl_DbCommands[CommandIndex].Name, FALSE);
return (AE_CTRL_TRUE);
}
/* Decode and dispatch the command */
switch (CommandIndex)
{
case CMD_NULL:
if (Op)
{
return (AE_OK);
}
break;
case CMD_ALLOCATIONS:
#ifdef ACPI_DBG_TRACK_ALLOCATIONS
AcpiUtDumpAllocations ((UINT32) -1, NULL);
#endif
break;
case CMD_ARGS:
case CMD_ARGUMENTS:
AcpiDbDisplayArguments ();
break;
case CMD_BREAKPOINT:
AcpiDbSetMethodBreakpoint (AcpiGbl_DbArgs[1], WalkState, Op);
break;
case CMD_BUSINFO:
AcpiDbGetBusInfo ();
break;
case CMD_CALL:
AcpiDbSetMethodCallBreakpoint (Op);
Status = AE_OK;
break;
case CMD_DEBUG:
AcpiDbExecute (AcpiGbl_DbArgs[1],
&AcpiGbl_DbArgs[2], &AcpiGbl_DbArgTypes[2], EX_SINGLE_STEP);
break;
case CMD_DISASSEMBLE:
case CMD_DISASM:
(void) AcpiDbDisassembleMethod (AcpiGbl_DbArgs[1]);
break;
case CMD_DUMP:
AcpiDbDecodeAndDisplayObject (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
break;
case CMD_EVALUATE:
case CMD_EXECUTE:
AcpiDbExecute (AcpiGbl_DbArgs[1],
&AcpiGbl_DbArgs[2], &AcpiGbl_DbArgTypes[2], EX_NO_SINGLE_STEP);
break;
case CMD_FIND:
Status = AcpiDbFindNameInNamespace (AcpiGbl_DbArgs[1]);
break;
case CMD_GO:
AcpiGbl_CmSingleStep = FALSE;
return (AE_OK);
case CMD_HANDLERS:
AcpiDbDisplayHandlers ();
break;
case CMD_HELP:
case CMD_HELP2:
AcpiDbDisplayHelp (AcpiGbl_DbArgs[1]);
break;
case CMD_HISTORY:
AcpiDbDisplayHistory ();
break;
case CMD_HISTORY_EXE: /* ! command */
CommandLine = AcpiDbGetFromHistory (AcpiGbl_DbArgs[1]);
if (!CommandLine)
{
return (AE_CTRL_TRUE);
}
Status = AcpiDbCommandDispatch (CommandLine, WalkState, Op);
return (Status);
case CMD_HISTORY_LAST: /* !! command */
CommandLine = AcpiDbGetFromHistory (NULL);
if (!CommandLine)
{
return (AE_CTRL_TRUE);
}
Status = AcpiDbCommandDispatch (CommandLine, WalkState, Op);
return (Status);
case CMD_INFORMATION:
AcpiDbDisplayMethodInfo (Op);
break;
case CMD_INTEGRITY:
AcpiDbCheckIntegrity ();
break;
case CMD_INTO:
if (Op)
{
AcpiGbl_CmSingleStep = TRUE;
return (AE_OK);
}
break;
case CMD_LEVEL:
if (ParamCount == 0)
{
AcpiOsPrintf (
"Current debug level for file output is: %8.8lX\n",
AcpiGbl_DbDebugLevel);
AcpiOsPrintf (
"Current debug level for console output is: %8.8lX\n",
AcpiGbl_DbConsoleDebugLevel);
}
else if (ParamCount == 2)
{
Temp = AcpiGbl_DbConsoleDebugLevel;
AcpiGbl_DbConsoleDebugLevel =
strtoul (AcpiGbl_DbArgs[1], NULL, 16);
AcpiOsPrintf (
"Debug Level for console output was %8.8lX, now %8.8lX\n",
Temp, AcpiGbl_DbConsoleDebugLevel);
}
else
{
Temp = AcpiGbl_DbDebugLevel;
AcpiGbl_DbDebugLevel = strtoul (AcpiGbl_DbArgs[1], NULL, 16);
AcpiOsPrintf (
"Debug Level for file output was %8.8lX, now %8.8lX\n",
Temp, AcpiGbl_DbDebugLevel);
}
break;
case CMD_LIST:
AcpiDbDisassembleAml (AcpiGbl_DbArgs[1], Op);
break;
case CMD_LOCKS:
AcpiDbDisplayLocks ();
break;
case CMD_LOCALS:
AcpiDbDisplayLocals ();
break;
case CMD_METHODS:
Status = AcpiDbDisplayObjects ("METHOD", AcpiGbl_DbArgs[1]);
break;
case CMD_NAMESPACE:
AcpiDbDumpNamespace (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
break;
case CMD_NOTIFY:
Temp = strtoul (AcpiGbl_DbArgs[2], NULL, 0);
AcpiDbSendNotify (AcpiGbl_DbArgs[1], Temp);
break;
case CMD_OBJECTS:
AcpiUtStrupr (AcpiGbl_DbArgs[1]);
Status = AcpiDbDisplayObjects (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
break;
case CMD_OSI:
AcpiDbDisplayInterfaces (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
break;
case CMD_OWNER:
AcpiDbDumpNamespaceByOwner (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
break;
case CMD_PATHS:
AcpiDbDumpNamespacePaths ();
break;
case CMD_PREFIX:
AcpiDbSetScope (AcpiGbl_DbArgs[1]);
break;
case CMD_REFERENCES:
AcpiDbFindReferences (AcpiGbl_DbArgs[1]);
break;
case CMD_RESOURCES:
AcpiDbDisplayResources (AcpiGbl_DbArgs[1]);
break;
case CMD_RESULTS:
AcpiDbDisplayResults ();
break;
case CMD_SET:
AcpiDbSetMethodData (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2],
AcpiGbl_DbArgs[3]);
break;
case CMD_STATS:
Status = AcpiDbDisplayStatistics (AcpiGbl_DbArgs[1]);
break;
case CMD_STOP:
return (AE_NOT_IMPLEMENTED);
case CMD_TABLES:
AcpiDbDisplayTableInfo (AcpiGbl_DbArgs[1]);
break;
case CMD_TEMPLATE:
AcpiDbDisplayTemplate (AcpiGbl_DbArgs[1]);
break;
case CMD_TRACE:
AcpiDbTrace (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2], AcpiGbl_DbArgs[3]);
break;
case CMD_TREE:
AcpiDbDisplayCallingTree ();
break;
case CMD_TYPE:
AcpiDbDisplayObjectType (AcpiGbl_DbArgs[1]);
break;
#ifdef ACPI_APPLICATION
/* Hardware simulation commands. */
case CMD_ENABLEACPI:
#if (!ACPI_REDUCED_HARDWARE)
Status = AcpiEnable();
if (ACPI_FAILURE(Status))
{
AcpiOsPrintf("AcpiEnable failed (Status=%X)\n", Status);
return (Status);
}
#endif /* !ACPI_REDUCED_HARDWARE */
break;
case CMD_EVENT:
AcpiOsPrintf ("Event command not implemented\n");
break;
case CMD_GPE:
AcpiDbGenerateGpe (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
break;
case CMD_GPES:
AcpiDbDisplayGpes ();
break;
case CMD_SCI:
AcpiDbGenerateSci ();
break;
case CMD_SLEEP:
Status = AcpiDbSleep (AcpiGbl_DbArgs[1]);
break;
/* File I/O commands. */
case CMD_CLOSE:
AcpiDbCloseDebugFile ();
break;
case CMD_LOAD:
{
ACPI_NEW_TABLE_DESC *ListHead = NULL;
Status = AcGetAllTablesFromFile (AcpiGbl_DbArgs[1],
ACPI_GET_ALL_TABLES, &ListHead);
if (ACPI_SUCCESS (Status))
{
AcpiDbLoadTables (ListHead);
}
}
break;
case CMD_OPEN:
AcpiDbOpenDebugFile (AcpiGbl_DbArgs[1]);
break;
/* User space commands. */
case CMD_TERMINATE:
AcpiDbSetOutputDestination (ACPI_DB_REDIRECTABLE_OUTPUT);
AcpiUtSubsystemShutdown ();
/*
* TBD: [Restructure] Need some way to re-initialize without
* re-creating the semaphores!
*/
AcpiGbl_DbTerminateLoop = TRUE;
/* AcpiInitialize (NULL); */
break;
case CMD_BACKGROUND:
AcpiDbCreateExecutionThread (AcpiGbl_DbArgs[1], &AcpiGbl_DbArgs[2],
&AcpiGbl_DbArgTypes[2]);
break;
case CMD_THREADS:
AcpiDbCreateExecutionThreads (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2],
AcpiGbl_DbArgs[3]);
break;
/* Debug test commands. */
case CMD_PREDEFINED:
AcpiDbCheckPredefinedNames ();
break;
case CMD_TEST:
AcpiDbExecuteTest (AcpiGbl_DbArgs[1]);
break;
case CMD_UNLOAD:
AcpiDbUnloadAcpiTable (AcpiGbl_DbArgs[1]);
break;
#endif
case CMD_EXIT:
case CMD_QUIT:
if (Op)
{
AcpiOsPrintf ("Method execution terminated\n");
return (AE_CTRL_TERMINATE);
}
if (!AcpiGbl_DbOutputToFile)
{
AcpiDbgLevel = ACPI_DEBUG_DEFAULT;
}
#ifdef ACPI_APPLICATION
AcpiDbCloseDebugFile ();
#endif
AcpiGbl_DbTerminateLoop = TRUE;
return (AE_CTRL_TERMINATE);
case CMD_NOT_FOUND:
default:
AcpiOsPrintf ("%s: unknown command\n", AcpiGbl_DbArgs[0]);
return (AE_CTRL_TRUE);
}
if (ACPI_SUCCESS (Status))
{
Status = AE_CTRL_TRUE;
}
return (Status);
}
ACPI_STATUS
AcpiDbCommandDispatch (
char *InputBuffer,
ACPI_WALK_STATE *WalkState,
ACPI_PARSE_OBJECT *Op)
{
UINT32 Temp;
UINT32 CommandIndex;
UINT32 ParamCount;
char *CommandLine;
ACPI_STATUS Status = AE_CTRL_TRUE;
/* If AcpiTerminate has been called, terminate this thread */
if (AcpiGbl_DbTerminateThreads)
{
return (AE_CTRL_TERMINATE);
}
ParamCount = AcpiDbGetLine (InputBuffer);
CommandIndex = AcpiDbMatchCommand (AcpiGbl_DbArgs[0]);
Temp = 0;
/* Verify that we have the minimum number of params */
if (ParamCount < AcpiGbl_DbCommands[CommandIndex].MinArgs)
{
AcpiOsPrintf ("%d parameters entered, [%s] requires %d parameters\n",
ParamCount, AcpiGbl_DbCommands[CommandIndex].Name, AcpiGbl_DbCommands[CommandIndex].MinArgs);
return (AE_CTRL_TRUE);
}
/* Decode and dispatch the command */
switch (CommandIndex)
{
case CMD_NULL:
if (Op)
{
return (AE_OK);
}
break;
case CMD_ALLOCATIONS:
#ifdef ACPI_DBG_TRACK_ALLOCATIONS
AcpiUtDumpAllocations ((UINT32) -1, NULL);
#endif
break;
case CMD_ARGS:
case CMD_ARGUMENTS:
AcpiDbDisplayArguments ();
break;
case CMD_BREAKPOINT:
AcpiDbSetMethodBreakpoint (AcpiGbl_DbArgs[1], WalkState, Op);
break;
case CMD_CALL:
AcpiDbSetMethodCallBreakpoint (Op);
Status = AE_OK;
break;
case CMD_CLOSE:
AcpiDbCloseDebugFile ();
break;
case CMD_DEBUG:
AcpiDbExecute (AcpiGbl_DbArgs[1], &AcpiGbl_DbArgs[2], EX_SINGLE_STEP);
break;
case CMD_DUMP:
AcpiDbDecodeAndDisplayObject (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
break;
case CMD_ENABLEACPI:
Status = AcpiEnable();
if (ACPI_FAILURE(Status))
{
AcpiOsPrintf("AcpiEnable failed (Status=%X)\n", Status);
return (Status);
}
break;
case CMD_EVENT:
AcpiOsPrintf ("Event command not implemented\n");
break;
case CMD_EXECUTE:
AcpiDbExecute (AcpiGbl_DbArgs[1], &AcpiGbl_DbArgs[2], EX_NO_SINGLE_STEP);
break;
case CMD_FIND:
AcpiDbFindNameInNamespace (AcpiGbl_DbArgs[1]);
break;
case CMD_GO:
AcpiGbl_CmSingleStep = FALSE;
return (AE_OK);
case CMD_GPE:
AcpiDbGenerateGpe (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
break;
case CMD_GPES:
AcpiDbDisplayGpes ();
break;
case CMD_HELP:
case CMD_HELP2:
AcpiDbDisplayHelp (AcpiGbl_DbArgs[1]);
break;
case CMD_HISTORY:
AcpiDbDisplayHistory ();
break;
case CMD_HISTORY_EXE:
CommandLine = AcpiDbGetFromHistory (AcpiGbl_DbArgs[1]);
if (!CommandLine)
{
return (AE_CTRL_TRUE);
}
Status = AcpiDbCommandDispatch (CommandLine, WalkState, Op);
if (ACPI_SUCCESS (Status))
{
Status = AE_CTRL_TRUE;
}
return (Status);
case CMD_HISTORY_LAST:
CommandLine = AcpiDbGetFromHistory (NULL);
if (!CommandLine)
{
return (AE_CTRL_TRUE);
}
Status = AcpiDbCommandDispatch (CommandLine, WalkState, Op);
if (ACPI_SUCCESS (Status))
{
Status = AE_CTRL_TRUE;
}
return (Status);
case CMD_INFORMATION:
AcpiDbDisplayMethodInfo (Op);
break;
case CMD_INTEGRITY:
AcpiDbCheckIntegrity ();
break;
case CMD_INTO:
if (Op)
{
AcpiGbl_CmSingleStep = TRUE;
return (AE_OK);
}
break;
case CMD_LEVEL:
if (ParamCount == 0)
{
AcpiOsPrintf ("Current debug level for file output is: %8.8lX\n", AcpiGbl_DbDebugLevel);
AcpiOsPrintf ("Current debug level for console output is: %8.8lX\n", AcpiGbl_DbConsoleDebugLevel);
}
else if (ParamCount == 2)
{
Temp = AcpiGbl_DbConsoleDebugLevel;
AcpiGbl_DbConsoleDebugLevel = ACPI_STRTOUL (AcpiGbl_DbArgs[1], NULL, 16);
AcpiOsPrintf ("Debug Level for console output was %8.8lX, now %8.8lX\n", Temp, AcpiGbl_DbConsoleDebugLevel);
}
else
{
Temp = AcpiGbl_DbDebugLevel;
AcpiGbl_DbDebugLevel = ACPI_STRTOUL (AcpiGbl_DbArgs[1], NULL, 16);
AcpiOsPrintf ("Debug Level for file output was %8.8lX, now %8.8lX\n", Temp, AcpiGbl_DbDebugLevel);
}
break;
case CMD_LIST:
AcpiDbDisassembleAml (AcpiGbl_DbArgs[1], Op);
break;
case CMD_LOAD:
Status = AcpiDbGetTableFromFile (AcpiGbl_DbArgs[1], NULL);
if (ACPI_FAILURE (Status))
{
return (Status);
}
break;
case CMD_LOCKS:
AcpiDbDisplayLocks ();
break;
case CMD_LOCALS:
AcpiDbDisplayLocals ();
break;
case CMD_METHODS:
AcpiDbDisplayObjects ("METHOD", AcpiGbl_DbArgs[1]);
break;
case CMD_NAMESPACE:
AcpiDbDumpNamespace (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
break;
case CMD_NOTIFY:
Temp = ACPI_STRTOUL (AcpiGbl_DbArgs[2], NULL, 0);
AcpiDbSendNotify (AcpiGbl_DbArgs[1], Temp);
break;
case CMD_OBJECT:
ACPI_STRUPR (AcpiGbl_DbArgs[1]);
AcpiDbDisplayObjects (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
break;
case CMD_OPEN:
AcpiDbOpenDebugFile (AcpiGbl_DbArgs[1]);
break;
case CMD_OWNER:
AcpiDbDumpNamespaceByOwner (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
break;
case CMD_PREFIX:
AcpiDbSetScope (AcpiGbl_DbArgs[1]);
break;
case CMD_REFERENCES:
AcpiDbFindReferences (AcpiGbl_DbArgs[1]);
break;
case CMD_RESOURCES:
AcpiDbDisplayResources (AcpiGbl_DbArgs[1]);
break;
case CMD_RESULTS:
AcpiDbDisplayResults ();
break;
case CMD_SET:
AcpiDbSetMethodData (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2], AcpiGbl_DbArgs[3]);
break;
case CMD_STATS:
AcpiDbDisplayStatistics (AcpiGbl_DbArgs[1]);
break;
case CMD_STOP:
return (AE_NOT_IMPLEMENTED);
case CMD_TABLES:
AcpiDbDisplayTableInfo (AcpiGbl_DbArgs[1]);
break;
case CMD_TERMINATE:
AcpiDbSetOutputDestination (ACPI_DB_REDIRECTABLE_OUTPUT);
AcpiUtSubsystemShutdown ();
/* TBD: [Restructure] Need some way to re-initialize without re-creating the semaphores! */
/* AcpiInitialize (NULL); */
break;
case CMD_THREADS:
AcpiDbCreateExecutionThreads (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2], AcpiGbl_DbArgs[3]);
break;
case CMD_TREE:
AcpiDbDisplayCallingTree ();
break;
case CMD_UNLOAD:
AcpiDbUnloadAcpiTable (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
break;
case CMD_EXIT:
case CMD_QUIT:
if (Op)
{
AcpiOsPrintf ("Method execution terminated\n");
return (AE_CTRL_TERMINATE);
}
if (!AcpiGbl_DbOutputToFile)
{
AcpiDbgLevel = ACPI_DEBUG_DEFAULT;
}
/* Shutdown */
/* AcpiUtSubsystemShutdown (); */
AcpiDbCloseDebugFile ();
AcpiGbl_DbTerminateThreads = TRUE;
return (AE_CTRL_TERMINATE);
case CMD_NOT_FOUND:
default:
AcpiOsPrintf ("Unknown Command\n");
return (AE_CTRL_TRUE);
}
/* Add all commands that come here to the history buffer */
AcpiDbAddToHistory (InputBuffer);
return (Status);
}
ACPI_STATUS
AcpiEnableSubsystem (
UINT32 Flags)
{
ACPI_STATUS Status = AE_OK;
ACPI_FUNCTION_TRACE (AcpiEnableSubsystem);
/*
* The early initialization phase is complete. The namespace is loaded,
* and we can now support address spaces other than Memory, I/O, and
* PCI_Config.
*/
AcpiGbl_EarlyInitialization = FALSE;
/*
* Install the default operation region handlers. These are the
* handlers that are defined by the ACPI specification to be
* "always accessible" -- namely, SystemMemory, SystemIO, and
* PCI_Config. This also means that no _REG methods need to be
* run for these address spaces. We need to have these handlers
* installed before any AML code can be executed, especially any
* module-level code (11/2015).
*/
if (!AcpiGbl_GroupModuleLevelCode)
{
Status = AcpiEvInstallRegionHandlers ();
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status, "During Region initialization"));
return_ACPI_STATUS (Status);
}
}
#if (!ACPI_REDUCED_HARDWARE)
/* Enable ACPI mode */
if (!(Flags & ACPI_NO_ACPI_ENABLE))
{
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Going into ACPI mode\n"));
AcpiGbl_OriginalMode = AcpiHwGetMode();
Status = AcpiEnable ();
if (ACPI_FAILURE (Status))
{
ACPI_WARNING ((AE_INFO, "AcpiEnable failed"));
return_ACPI_STATUS (Status);
}
}
/*
* Obtain a permanent mapping for the FACS. This is required for the
* Global Lock and the Firmware Waking Vector
*/
if (!(Flags & ACPI_NO_FACS_INIT))
{
Status = AcpiTbInitializeFacs ();
if (ACPI_FAILURE (Status))
{
ACPI_WARNING ((AE_INFO, "Could not map the FACS table"));
return_ACPI_STATUS (Status);
}
}
/*
* Initialize ACPI Event handling (Fixed and General Purpose)
*
* Note1: We must have the hardware and events initialized before we can
* execute any control methods safely. Any control method can require
* ACPI hardware support, so the hardware must be fully initialized before
* any method execution!
*
* Note2: Fixed events are initialized and enabled here. GPEs are
* initialized, but cannot be enabled until after the hardware is
* completely initialized (SCI and GlobalLock activated) and the various
* initialization control methods are run (_REG, _STA, _INI) on the
* entire namespace.
*/
if (!(Flags & ACPI_NO_EVENT_INIT))
{
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
"[Init] Initializing ACPI events\n"));
Status = AcpiEvInitializeEvents ();
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
}
/*
* Install the SCI handler and Global Lock handler. This completes the
* hardware initialization.
*/
if (!(Flags & ACPI_NO_HANDLER_INIT))
{
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
"[Init] Installing SCI/GL handlers\n"));
Status = AcpiEvInstallXruptHandlers ();
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
}
#endif /* !ACPI_REDUCED_HARDWARE */
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiEnableSubsystem (
UINT32 Flags)
{
ACPI_STATUS Status = AE_OK;
ACPI_FUNCTION_TRACE (AcpiEnableSubsystem);
/* Enable ACPI mode */
if (!(Flags & ACPI_NO_ACPI_ENABLE))
{
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Going into ACPI mode\n"));
AcpiGbl_OriginalMode = AcpiHwGetMode();
Status = AcpiEnable ();
if (ACPI_FAILURE (Status))
{
ACPI_WARNING ((AE_INFO, "AcpiEnable failed"));
return_ACPI_STATUS (Status);
}
}
/*
* Install the default OpRegion handlers. These are installed unless
* other handlers have already been installed via the
* InstallAddressSpaceHandler interface.
*/
if (!(Flags & ACPI_NO_ADDRESS_SPACE_INIT))
{
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
"[Init] Installing default address space handlers\n"));
Status = AcpiEvInstallRegionHandlers ();
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
}
/*
* Initialize ACPI Event handling (Fixed and General Purpose)
*
* Note1: We must have the hardware and events initialized before we can
* execute any control methods safely. Any control method can require
* ACPI hardware support, so the hardware must be fully initialized before
* any method execution!
*
* Note2: Fixed events are initialized and enabled here. GPEs are
* initialized, but cannot be enabled until after the hardware is
* completely initialized (SCI and GlobalLock activated)
*/
if (!(Flags & ACPI_NO_EVENT_INIT))
{
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
"[Init] Initializing ACPI events\n"));
Status = AcpiEvInitializeEvents ();
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
}
/*
* Install the SCI handler and Global Lock handler. This completes the
* hardware initialization.
*/
if (!(Flags & ACPI_NO_HANDLER_INIT))
{
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
"[Init] Installing SCI/GL handlers\n"));
Status = AcpiEvInstallXruptHandlers ();
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
}
/*
* Complete the GPE initialization for the GPE blocks defined in the FADT
* (GPE block 0 and 1).
*
* Note1: This is where the _PRW methods are executed for the GPEs. These
* methods can only be executed after the SCI and Global Lock handlers are
* installed and initialized.
*
* Note2: Currently, there seems to be no need to run the _REG methods
* before execution of the _PRW methods and enabling of the GPEs.
*/
if (!(Flags & ACPI_NO_EVENT_INIT))
{
Status = AcpiEvInstallFadtGpes ();
if (ACPI_FAILURE (Status))
{
return (Status);
}
}
return_ACPI_STATUS (Status);
}