char *
MpGetConnectionInfo (
ACPI_PARSE_OBJECT *Op,
UINT32 PinIndex,
ACPI_NAMESPACE_NODE **TargetNode,
char **TargetName)
{
ACPI_PARSE_OBJECT *NextOp;
UINT32 i;
/*
* Handle Connection() here. Find the next named FieldUnit.
* Note: we look at the ParseOpcode for the compiler, look
* at the AmlOpcode for the disassembler.
*/
if ((Op->Asl.AmlOpcode == AML_INT_CONNECTION_OP) ||
(Op->Asl.ParseOpcode == PARSEOP_CONNECTION))
{
/* Find the correct field unit definition */
NextOp = Op;
for (i = 0; i <= PinIndex;)
{
NextOp = NextOp->Asl.Next;
while (NextOp &&
(NextOp->Asl.ParseOpcode != PARSEOP_NAMESEG) &&
(NextOp->Asl.AmlOpcode != AML_INT_NAMEDFIELD_OP))
{
NextOp = NextOp->Asl.Next;
}
if (!NextOp)
{
return ("UNKNOWN");
}
/* Add length of this field to the current pin index */
if (NextOp->Asl.ParseOpcode == PARSEOP_NAMESEG)
{
i += (UINT32) NextOp->Asl.Child->Asl.Value.Integer;
}
else /* AML_INT_NAMEDFIELD_OP */
{
i += (UINT32) NextOp->Asl.Value.Integer;
}
}
/* Return the node and pathname for the field unit */
*TargetNode = NextOp->Asl.Node;
*TargetName = AcpiNsGetExternalPathname (*TargetNode);
return ("-Field-");
}
return (NULL);
}
static ACPI_STATUS
AcpiDbWalkForPredefinedNames (
ACPI_HANDLE ObjHandle,
UINT32 NestingLevel,
void *Context,
void **ReturnValue)
{
ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;
UINT32 *Count = (UINT32 *) Context;
const ACPI_PREDEFINED_INFO *Predefined;
const ACPI_PREDEFINED_INFO *Package = NULL;
char *Pathname;
char StringBuffer[48];
Predefined = AcpiUtMatchPredefinedMethod (Node->Name.Ascii);
if (!Predefined)
{
return (AE_OK);
}
Pathname = AcpiNsGetExternalPathname (Node);
if (!Pathname)
{
return (AE_OK);
}
/* If method returns a package, the info is in the next table entry */
if (Predefined->Info.ExpectedBtypes & ACPI_RTYPE_PACKAGE)
{
Package = Predefined + 1;
}
AcpiUtGetExpectedReturnTypes (StringBuffer,
Predefined->Info.ExpectedBtypes);
AcpiOsPrintf ("%-32s Arguments %X, Return Types: %s", Pathname,
METHOD_GET_ARG_COUNT (Predefined->Info.ArgumentList),
StringBuffer);
if (Package)
{
AcpiOsPrintf (" (PkgType %2.2X, ObjType %2.2X, Count %2.2X)",
Package->RetInfo.Type, Package->RetInfo.ObjectType1,
Package->RetInfo.Count1);
}
AcpiOsPrintf("\n");
/* Check that the declared argument count matches the ACPI spec */
AcpiNsCheckAcpiCompliance (Pathname, Node, Predefined);
ACPI_FREE (Pathname);
(*Count)++;
return (AE_OK);
}
static ACPI_STATUS
AcpiDbWalkForPredefinedNames (
ACPI_HANDLE ObjHandle,
UINT32 NestingLevel,
void *Context,
void **ReturnValue)
{
ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;
UINT32 *Count = (UINT32 *) Context;
const ACPI_PREDEFINED_INFO *Predefined;
const ACPI_PREDEFINED_INFO *Package = NULL;
char *Pathname;
Predefined = AcpiNsCheckForPredefinedName (Node);
if (!Predefined)
{
return (AE_OK);
}
Pathname = AcpiNsGetExternalPathname (Node);
if (!Pathname)
{
return (AE_OK);
}
/* If method returns a package, the info is in the next table entry */
if (Predefined->Info.ExpectedBtypes & ACPI_BTYPE_PACKAGE)
{
Package = Predefined + 1;
}
AcpiOsPrintf ("%-32s arg %X ret %2.2X", Pathname,
Predefined->Info.ParamCount, Predefined->Info.ExpectedBtypes);
if (Package)
{
AcpiOsPrintf (" PkgType %2.2X ObjType %2.2X Count %2.2X",
Package->RetInfo.Type, Package->RetInfo.ObjectType1,
Package->RetInfo.Count1);
}
AcpiOsPrintf("\n");
AcpiNsCheckParameterCount (Pathname, Node, ACPI_UINT32_MAX, Predefined);
ACPI_FREE (Pathname);
(*Count)++;
return (AE_OK);
}
static ACPI_STATUS
AcpiDbDisplayNonRootHandlers (
ACPI_HANDLE ObjHandle,
UINT32 NestingLevel,
void *Context,
void **ReturnValue)
{
ACPI_NAMESPACE_NODE *Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle);
ACPI_OPERAND_OBJECT *ObjDesc;
ACPI_OPERAND_OBJECT *HandlerObj;
char *Pathname;
ObjDesc = AcpiNsGetAttachedObject (Node);
if (!ObjDesc)
{
return (AE_OK);
}
Pathname = AcpiNsGetExternalPathname (Node);
if (!Pathname)
{
return (AE_OK);
}
/* Display all handlers associated with this device */
HandlerObj = ObjDesc->Device.Handler;
while (HandlerObj)
{
AcpiOsPrintf (ACPI_PREDEFINED_PREFIX,
AcpiUtGetRegionName ((UINT8) HandlerObj->AddressSpace.SpaceId),
HandlerObj->AddressSpace.SpaceId);
AcpiOsPrintf (ACPI_HANDLER_PRESENT_STRING2,
(HandlerObj->AddressSpace.HandlerFlags &
ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) ? "Default" : "User",
HandlerObj->AddressSpace.Handler);
AcpiOsPrintf (" Device Name: %s (%p)\n", Pathname, Node);
HandlerObj = HandlerObj->AddressSpace.Next;
}
ACPI_FREE (Pathname);
return (AE_OK);
}
static ACPI_STATUS
AcpiNsDumpOneObjectPath (
ACPI_HANDLE ObjHandle,
UINT32 Level,
void *Context,
void **ReturnValue)
{
UINT32 MaxLevel = *((UINT32 *) Context);
char *Pathname;
ACPI_NAMESPACE_NODE *Node;
int PathIndent;
if (!ObjHandle)
{
return (AE_OK);
}
Node = AcpiNsValidateHandle (ObjHandle);
if (!Node)
{
/* Ignore bad node during namespace walk */
return (AE_OK);
}
Pathname = AcpiNsGetExternalPathname (Node);
PathIndent = 1;
if (Level <= MaxLevel)
{
PathIndent = MaxLevel - Level + 1;
}
AcpiOsPrintf ("%2d%*s%-12s%*s",
Level, Level, " ", AcpiUtGetTypeName (Node->Type),
PathIndent, " ");
AcpiOsPrintf ("%s\n", &Pathname[1]);
ACPI_FREE (Pathname);
return (AE_OK);
}
static ACPI_STATUS
MpEmitOneDevice (
ACPI_HANDLE ObjHandle,
UINT32 NestingLevel,
void *Context,
void **ReturnValue)
{
char *DevicePathname;
char *DdnString;
char *HidString;
const AH_DEVICE_ID *HidInfo;
/* Device pathname */
DevicePathname = AcpiNsGetExternalPathname (
ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle));
FlPrintFile (ASL_FILE_MAP_OUTPUT, "%-32s", DevicePathname);
/* _HID or _DDN */
HidString = MpGetHidValue (
ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle));
FlPrintFile (ASL_FILE_MAP_OUTPUT, "%8s", HidString);
HidInfo = AcpiAhMatchHardwareId (HidString);
if (HidInfo)
{
FlPrintFile (ASL_FILE_MAP_OUTPUT, " // %s",
HidInfo->Description);
}
else if ((DdnString = MpGetDdnValue (DevicePathname)))
{
FlPrintFile (ASL_FILE_MAP_OUTPUT, " // %s (_DDN)", DdnString);
}
FlPrintFile (ASL_FILE_MAP_OUTPUT, "\n");
ACPI_FREE (DevicePathname);
return (AE_OK);
}
char *
MpGetParentDeviceHid (
ACPI_PARSE_OBJECT *Op,
ACPI_NAMESPACE_NODE **TargetNode,
char **ParentDeviceName)
{
ACPI_NAMESPACE_NODE *DeviceNode;
/* Find parent Device() or Scope() Op */
while (Op &&
(Op->Asl.AmlOpcode != AML_DEVICE_OP) &&
(Op->Asl.AmlOpcode != AML_SCOPE_OP))
{
Op = Op->Asl.Parent;
}
if (!Op)
{
FlPrintFile (ASL_FILE_MAP_OUTPUT, " No_Parent_Device ");
goto ErrorExit;
}
/* Get the full pathname to the device and the _HID */
DeviceNode = Op->Asl.Node;
if (!DeviceNode)
{
FlPrintFile (ASL_FILE_MAP_OUTPUT, " No_Device_Node ");
goto ErrorExit;
}
*ParentDeviceName = AcpiNsGetExternalPathname (DeviceNode);
return (MpGetHidValue (DeviceNode));
ErrorExit:
return ("-No HID-");
}
ACPI_STATUS
AcpiNsCheckPredefinedNames (
ACPI_NAMESPACE_NODE *Node,
UINT32 UserParamCount,
ACPI_STATUS ReturnStatus,
ACPI_OPERAND_OBJECT **ReturnObjectPtr)
{
ACPI_OPERAND_OBJECT *ReturnObject = *ReturnObjectPtr;
ACPI_STATUS Status = AE_OK;
const ACPI_PREDEFINED_INFO *Predefined;
char *Pathname;
ACPI_PREDEFINED_DATA *Data;
/* Match the name for this method/object against the predefined list */
Predefined = AcpiNsCheckForPredefinedName (Node);
/* Get the full pathname to the object, for use in warning messages */
Pathname = AcpiNsGetExternalPathname (Node);
if (!Pathname)
{
return (AE_OK); /* Could not get pathname, ignore */
}
/*
* Check that the parameter count for this method matches the ASL
* definition. For predefined names, ensure that both the caller and
* the method itself are in accordance with the ACPI specification.
*/
AcpiNsCheckParameterCount (Pathname, Node, UserParamCount, Predefined);
/* If not a predefined name, we cannot validate the return object */
if (!Predefined)
{
goto Cleanup;
}
/*
* If the method failed or did not actually return an object, we cannot
* validate the return object
*/
if ((ReturnStatus != AE_OK) && (ReturnStatus != AE_CTRL_RETURN_VALUE))
{
goto Cleanup;
}
/*
* If there is no return value, check if we require a return value for
* this predefined name. Either one return value is expected, or none,
* for both methods and other objects.
*
* Exit now if there is no return object. Warning if one was expected.
*/
if (!ReturnObject)
{
if ((Predefined->Info.ExpectedBtypes) &&
(!(Predefined->Info.ExpectedBtypes & ACPI_RTYPE_NONE)))
{
ACPI_WARN_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
"Missing expected return value"));
Status = AE_AML_NO_RETURN_VALUE;
}
goto Cleanup;
}
/*
* Return value validation and possible repair.
*
* 1) Don't perform return value validation/repair if this feature
* has been disabled via a global option.
*
* 2) We have a return value, but if one wasn't expected, just exit,
* this is not a problem. For example, if the "Implicit Return"
* feature is enabled, methods will always return a value.
*
* 3) If the return value can be of any type, then we cannot perform
* any validation, just exit.
*/
if (AcpiGbl_DisableAutoRepair ||
(!Predefined->Info.ExpectedBtypes) ||
(Predefined->Info.ExpectedBtypes == ACPI_RTYPE_ALL))
{
goto Cleanup;
}
/* Create the parameter data block for object validation */
Data = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_PREDEFINED_DATA));
if (!Data)
{
goto Cleanup;
}
Data->Predefined = Predefined;
Data->Node = Node;
Data->NodeFlags = Node->Flags;
Data->Pathname = Pathname;
/*
* Check that the type of the main return object is what is expected
* for this predefined name
*/
Status = AcpiNsCheckObjectType (Data, ReturnObjectPtr,
Predefined->Info.ExpectedBtypes, ACPI_NOT_PACKAGE_ELEMENT);
if (ACPI_FAILURE (Status))
{
goto Exit;
}
/*
* For returned Package objects, check the type of all sub-objects.
* Note: Package may have been newly created by call above.
*/
if ((*ReturnObjectPtr)->Common.Type == ACPI_TYPE_PACKAGE)
{
Data->ParentPackage = *ReturnObjectPtr;
Status = AcpiNsCheckPackage (Data, ReturnObjectPtr);
if (ACPI_FAILURE (Status))
{
goto Exit;
}
}
/*
* The return object was OK, or it was successfully repaired above.
* Now make some additional checks such as verifying that package
* objects are sorted correctly (if required) or buffer objects have
* the correct data width (bytes vs. dwords). These repairs are
* performed on a per-name basis, i.e., the code is specific to
* particular predefined names.
*/
Status = AcpiNsComplexRepairs (Data, Node, Status, ReturnObjectPtr);
Exit:
/*
* If the object validation failed or if we successfully repaired one
* or more objects, mark the parent node to suppress further warning
* messages during the next evaluation of the same method/object.
*/
if (ACPI_FAILURE (Status) || (Data->Flags & ACPI_OBJECT_REPAIRED))
{
Node->Flags |= ANOBJ_EVALUATED;
}
ACPI_FREE (Data);
Cleanup:
ACPI_FREE (Pathname);
return (Status);
}
static char *
AcpiDmNormalizeParentPrefix (
ACPI_PARSE_OBJECT *Op,
char *Path)
{
ACPI_NAMESPACE_NODE *Node;
char *Fullpath;
char *ParentPath;
ACPI_SIZE Length;
UINT32 Index = 0;
if (!Op)
{
return (NULL);
}
/* Search upwards in the parse tree until we reach the next namespace node */
Op = Op->Common.Parent;
while (Op)
{
if (Op->Common.Node)
{
break;
}
Op = Op->Common.Parent;
}
if (!Op)
{
return (NULL);
}
/*
* Find the actual parent node for the reference:
* Remove all carat prefixes from the input path.
* There may be multiple parent prefixes (For example, ^^^M000)
*/
Node = Op->Common.Node;
while (Node && (*Path == (UINT8) AML_PARENT_PREFIX))
{
Node = Node->Parent;
Path++;
}
if (!Node)
{
return (NULL);
}
/* Get the full pathname for the parent node */
ParentPath = AcpiNsGetExternalPathname (Node);
if (!ParentPath)
{
return (NULL);
}
Length = (ACPI_STRLEN (ParentPath) + ACPI_STRLEN (Path) + 1);
if (ParentPath[1])
{
/*
* If ParentPath is not just a simple '\', increment the length
* for the required dot separator (ParentPath.Path)
*/
Length++;
/* For External() statements, we do not want a leading '\' */
if (*ParentPath == AML_ROOT_PREFIX)
{
Index = 1;
}
}
Fullpath = ACPI_ALLOCATE_ZEROED (Length);
if (!Fullpath)
{
goto Cleanup;
}
/*
* Concatenate parent fullpath and path. For example,
* parent fullpath "\_SB_", Path "^INIT", Fullpath "\_SB_.INIT"
*
* Copy the parent path
*/
ACPI_STRCPY (Fullpath, &ParentPath[Index]);
/*
* Add dot separator
* (don't need dot if parent fullpath is a single backslash)
*/
if (ParentPath[1])
{
ACPI_STRCAT (Fullpath, ".");
}
/* Copy child path (carat parent prefix(es) were skipped above) */
ACPI_STRCAT (Fullpath, Path);
Cleanup:
ACPI_FREE (ParentPath);
return (Fullpath);
}
static void
LsWriteNodeToListing (
ACPI_PARSE_OBJECT *Op,
UINT32 FileId)
{
const ACPI_OPCODE_INFO *OpInfo;
UINT32 OpClass;
char *Pathname;
UINT32 Length;
UINT32 i;
OpInfo = AcpiPsGetOpcodeInfo (Op->Asl.AmlOpcode);
OpClass = OpInfo->Class;
/* TBD: clean this up with a single flag that says:
* I start a named output block
*/
if (FileId == ASL_FILE_C_SOURCE_OUTPUT)
{
switch (Op->Asl.ParseOpcode)
{
case PARSEOP_DEFINITION_BLOCK:
case PARSEOP_METHODCALL:
case PARSEOP_INCLUDE:
case PARSEOP_INCLUDE_END:
case PARSEOP_DEFAULT_ARG:
break;
default:
switch (OpClass)
{
case AML_CLASS_NAMED_OBJECT:
switch (Op->Asl.AmlOpcode)
{
case AML_SCOPE_OP:
case AML_ALIAS_OP:
break;
default:
if (Op->Asl.ExternalName)
{
LsFlushListingBuffer (FileId);
FlPrintFile (FileId, " };\n");
}
break;
}
break;
default:
/* Don't care about other objects */
break;
}
break;
}
}
/* These cases do not have a corresponding AML opcode */
switch (Op->Asl.ParseOpcode)
{
case PARSEOP_DEFINITION_BLOCK:
/* Always start a definition block at AML offset zero */
Gbl_CurrentAmlOffset = 0;
LsWriteSourceLines (Op->Asl.EndLine, Op->Asl.EndLogicalLine, FileId);
/* Use the table Signature and TableId to build a unique name */
switch (FileId)
{
case ASL_FILE_ASM_SOURCE_OUTPUT:
FlPrintFile (FileId,
"%s_%s_Header \\\n",
Gbl_TableSignature, Gbl_TableId);
break;
case ASL_FILE_C_SOURCE_OUTPUT:
FlPrintFile (FileId,
" unsigned char %s_%s_Header [] =\n {\n",
Gbl_TableSignature, Gbl_TableId);
break;
case ASL_FILE_ASM_INCLUDE_OUTPUT:
FlPrintFile (FileId,
"extrn %s_%s_Header : byte\n",
Gbl_TableSignature, Gbl_TableId);
break;
case ASL_FILE_C_INCLUDE_OUTPUT:
FlPrintFile (FileId,
"extern unsigned char %s_%s_Header [];\n",
Gbl_TableSignature, Gbl_TableId);
break;
default:
break;
}
return;
case PARSEOP_METHODCALL:
LsWriteSourceLines (Op->Asl.LineNumber, Op->Asl.LogicalLineNumber,
FileId);
return;
case PARSEOP_INCLUDE:
/* Flush everything up to and including the include source line */
LsWriteSourceLines (Op->Asl.LineNumber, Op->Asl.LogicalLineNumber,
FileId);
/* Create a new listing node and push it */
LsPushNode (Op->Asl.Value.String);
return;
case PARSEOP_INCLUDE_END:
/* Flush out the rest of the include file */
LsWriteSourceLines (Op->Asl.LineNumber, Op->Asl.LogicalLineNumber,
FileId);
/* Pop off this listing node and go back to the parent file */
(void) LsPopNode ();
return;
case PARSEOP_DEFAULT_ARG:
if (Op->Asl.CompileFlags & NODE_IS_RESOURCE_DESC)
{
LsWriteSourceLines (Op->Asl.LineNumber, Op->Asl.EndLogicalLine,
FileId);
}
return;
default:
/* All other opcodes have an AML opcode */
break;
}
/*
* Otherwise, we look at the AML opcode because we can
* switch on the opcode type, getting an entire class
* at once
*/
switch (OpClass)
{
case AML_CLASS_ARGUMENT: /* argument type only */
case AML_CLASS_INTERNAL:
break;
case AML_CLASS_NAMED_OBJECT:
switch (Op->Asl.AmlOpcode)
{
case AML_FIELD_OP:
case AML_INDEX_FIELD_OP:
case AML_BANK_FIELD_OP:
/*
* For fields, we want to dump all the AML after the
* entire definition
*/
LsWriteSourceLines (Op->Asl.EndLine, Op->Asl.EndLogicalLine,
FileId);
break;
case AML_NAME_OP:
if (Op->Asl.CompileFlags & NODE_IS_RESOURCE_DESC)
{
LsWriteSourceLines (Op->Asl.LineNumber, Op->Asl.LogicalLineNumber,
FileId);
}
else
{
/*
* For fields, we want to dump all the AML after the
* entire definition
*/
LsWriteSourceLines (Op->Asl.EndLine, Op->Asl.EndLogicalLine,
FileId);
}
break;
default:
LsWriteSourceLines (Op->Asl.LineNumber, Op->Asl.LogicalLineNumber,
FileId);
break;
}
switch (Op->Asl.AmlOpcode)
{
case AML_SCOPE_OP:
case AML_ALIAS_OP:
/* These opcodes do not declare a new object, ignore them */
break;
default:
/* All other named object opcodes come here */
switch (FileId)
{
case ASL_FILE_ASM_SOURCE_OUTPUT:
case ASL_FILE_C_SOURCE_OUTPUT:
case ASL_FILE_ASM_INCLUDE_OUTPUT:
case ASL_FILE_C_INCLUDE_OUTPUT:
/*
* For named objects, we will create a valid symbol so that the
* AML code can be referenced from C or ASM
*/
if (Op->Asl.ExternalName)
{
/* Get the full pathname associated with this node */
Pathname = AcpiNsGetExternalPathname (Op->Asl.Node);
Length = strlen (Pathname);
if (Length >= 4)
{
/* Convert all dots in the path to underscores */
for (i = 0; i < Length; i++)
{
if (Pathname[i] == '.')
{
Pathname[i] = '_';
}
}
/* Create the appropriate symbol in the output file */
switch (FileId)
{
case ASL_FILE_ASM_SOURCE_OUTPUT:
FlPrintFile (FileId,
"%s_%s_%s \\\n",
Gbl_TableSignature, Gbl_TableId, &Pathname[1]);
break;
case ASL_FILE_C_SOURCE_OUTPUT:
FlPrintFile (FileId,
" unsigned char %s_%s_%s [] =\n {\n",
Gbl_TableSignature, Gbl_TableId, &Pathname[1]);
break;
case ASL_FILE_ASM_INCLUDE_OUTPUT:
FlPrintFile (FileId,
"extrn %s_%s_%s : byte\n",
Gbl_TableSignature, Gbl_TableId, &Pathname[1]);
break;
case ASL_FILE_C_INCLUDE_OUTPUT:
FlPrintFile (FileId,
"extern unsigned char %s_%s_%s [];\n",
Gbl_TableSignature, Gbl_TableId, &Pathname[1]);
break;
default:
break;
}
}
ACPI_FREE (Pathname);
}
break;
default:
/* Nothing to do for listing file */
break;
}
}
break;
case AML_CLASS_EXECUTE:
case AML_CLASS_CREATE:
default:
if ((Op->Asl.ParseOpcode == PARSEOP_BUFFER) &&
(Op->Asl.CompileFlags & NODE_IS_RESOURCE_DESC))
{
return;
}
LsWriteSourceLines (Op->Asl.LineNumber, Op->Asl.LogicalLineNumber,
FileId);
break;
case AML_CLASS_UNKNOWN:
break;
}
}
static ACPI_STATUS
AcpiDbDeviceResources (
ACPI_HANDLE ObjHandle,
UINT32 NestingLevel,
void *Context,
void **ReturnValue)
{
ACPI_NAMESPACE_NODE *Node;
ACPI_NAMESPACE_NODE *PrtNode = NULL;
ACPI_NAMESPACE_NODE *CrsNode = NULL;
ACPI_NAMESPACE_NODE *PrsNode = NULL;
ACPI_NAMESPACE_NODE *AeiNode = NULL;
char *ParentPath;
ACPI_BUFFER ReturnObj;
ACPI_STATUS Status;
Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle);
ParentPath = AcpiNsGetExternalPathname (Node);
if (!ParentPath)
{
return (AE_NO_MEMORY);
}
/* Get handles to the resource methods for this device */
(void) AcpiGetHandle (Node, METHOD_NAME__PRT, ACPI_CAST_PTR (ACPI_HANDLE, &PrtNode));
(void) AcpiGetHandle (Node, METHOD_NAME__CRS, ACPI_CAST_PTR (ACPI_HANDLE, &CrsNode));
(void) AcpiGetHandle (Node, METHOD_NAME__PRS, ACPI_CAST_PTR (ACPI_HANDLE, &PrsNode));
(void) AcpiGetHandle (Node, METHOD_NAME__AEI, ACPI_CAST_PTR (ACPI_HANDLE, &AeiNode));
if (!PrtNode && !CrsNode && !PrsNode && !AeiNode)
{
goto Cleanup; /* Nothing to do */
}
AcpiOsPrintf ("\nDevice: %s\n", ParentPath);
/* Prepare for a return object of arbitrary size */
ReturnObj.Pointer = AcpiGbl_DbBuffer;
ReturnObj.Length = ACPI_DEBUG_BUFFER_SIZE;
/* _PRT */
if (PrtNode)
{
AcpiOsPrintf ("Evaluating _PRT\n");
Status = AcpiEvaluateObject (PrtNode, NULL, NULL, &ReturnObj);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("Could not evaluate _PRT: %s\n",
AcpiFormatException (Status));
goto GetCrs;
}
ReturnObj.Pointer = AcpiGbl_DbBuffer;
ReturnObj.Length = ACPI_DEBUG_BUFFER_SIZE;
Status = AcpiGetIrqRoutingTable (Node, &ReturnObj);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("GetIrqRoutingTable failed: %s\n",
AcpiFormatException (Status));
goto GetCrs;
}
AcpiRsDumpIrqList (ACPI_CAST_PTR (UINT8, AcpiGbl_DbBuffer));
}
/* _CRS */
GetCrs:
if (CrsNode)
{
AcpiOsPrintf ("Evaluating _CRS\n");
ReturnObj.Pointer = AcpiGbl_DbBuffer;
ReturnObj.Length = ACPI_DEBUG_BUFFER_SIZE;
Status = AcpiEvaluateObject (CrsNode, NULL, NULL, &ReturnObj);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("Could not evaluate _CRS: %s\n",
AcpiFormatException (Status));
goto GetPrs;
}
/* This code is here to exercise the AcpiWalkResources interface */
Status = AcpiWalkResources (Node, METHOD_NAME__CRS,
AcpiDbResourceCallback, NULL);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("AcpiWalkResources failed: %s\n",
AcpiFormatException (Status));
goto GetPrs;
}
/* Get the _CRS resource list */
ReturnObj.Pointer = AcpiGbl_DbBuffer;
ReturnObj.Length = ACPI_DEBUG_BUFFER_SIZE;
Status = AcpiGetCurrentResources (Node, &ReturnObj);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("AcpiGetCurrentResources failed: %s\n",
AcpiFormatException (Status));
goto GetPrs;
}
/* Dump the _CRS resource list */
AcpiRsDumpResourceList (ACPI_CAST_PTR (ACPI_RESOURCE,
ReturnObj.Pointer));
/*
* Perform comparison of original AML to newly created AML. This tests both
* the AML->Resource conversion and the Resource->Aml conversion.
*/
Status = AcpiDmTestResourceConversion (Node, METHOD_NAME__CRS);
/* Execute _SRS with the resource list */
Status = AcpiSetCurrentResources (Node, &ReturnObj);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("AcpiSetCurrentResources failed: %s\n",
AcpiFormatException (Status));
goto GetPrs;
}
}
/* _PRS */
GetPrs:
if (PrsNode)
{
AcpiOsPrintf ("Evaluating _PRS\n");
ReturnObj.Pointer = AcpiGbl_DbBuffer;
ReturnObj.Length = ACPI_DEBUG_BUFFER_SIZE;
Status = AcpiEvaluateObject (PrsNode, NULL, NULL, &ReturnObj);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("Could not evaluate _PRS: %s\n",
AcpiFormatException (Status));
goto GetAei;
}
ReturnObj.Pointer = AcpiGbl_DbBuffer;
ReturnObj.Length = ACPI_DEBUG_BUFFER_SIZE;
Status = AcpiGetPossibleResources (Node, &ReturnObj);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("AcpiGetPossibleResources failed: %s\n",
AcpiFormatException (Status));
goto GetAei;
}
AcpiRsDumpResourceList (ACPI_CAST_PTR (ACPI_RESOURCE, AcpiGbl_DbBuffer));
}
/* _AEI */
GetAei:
if (AeiNode)
{
AcpiOsPrintf ("Evaluating _AEI\n");
ReturnObj.Pointer = AcpiGbl_DbBuffer;
ReturnObj.Length = ACPI_DEBUG_BUFFER_SIZE;
Status = AcpiEvaluateObject (AeiNode, NULL, NULL, &ReturnObj);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("Could not evaluate _AEI: %s\n",
AcpiFormatException (Status));
goto Cleanup;
}
ReturnObj.Pointer = AcpiGbl_DbBuffer;
ReturnObj.Length = ACPI_DEBUG_BUFFER_SIZE;
Status = AcpiGetEventResources (Node, &ReturnObj);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("AcpiGetEventResources failed: %s\n",
AcpiFormatException (Status));
goto Cleanup;
}
AcpiRsDumpResourceList (ACPI_CAST_PTR (ACPI_RESOURCE, AcpiGbl_DbBuffer));
}
Cleanup:
ACPI_FREE (ParentPath);
return (AE_OK);
}
static ACPI_STATUS
AcpiDbWalkForExecute (
ACPI_HANDLE ObjHandle,
UINT32 NestingLevel,
void *Context,
void **ReturnValue)
{
ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;
ACPI_DB_EXECUTE_WALK *Info = (ACPI_DB_EXECUTE_WALK *) Context;
char *Pathname;
const ACPI_PREDEFINED_INFO *Predefined;
ACPI_DEVICE_INFO *ObjInfo;
ACPI_OBJECT_LIST ParamObjects;
ACPI_OBJECT Params[ACPI_METHOD_NUM_ARGS];
ACPI_OBJECT *ThisParam;
ACPI_BUFFER ReturnObj;
ACPI_STATUS Status;
UINT16 ArgTypeList;
UINT8 ArgCount;
UINT8 ArgType;
UINT32 i;
/* The name must be a predefined ACPI name */
Predefined = AcpiUtMatchPredefinedMethod (Node->Name.Ascii);
if (!Predefined)
{
return (AE_OK);
}
if (Node->Type == ACPI_TYPE_LOCAL_SCOPE)
{
return (AE_OK);
}
Pathname = AcpiNsGetExternalPathname (Node);
if (!Pathname)
{
return (AE_OK);
}
/* Get the object info for number of method parameters */
Status = AcpiGetObjectInfo (ObjHandle, &ObjInfo);
if (ACPI_FAILURE (Status))
{
return (Status);
}
ParamObjects.Count = 0;
ParamObjects.Pointer = NULL;
if (ObjInfo->Type == ACPI_TYPE_METHOD)
{
/* Setup default parameters (with proper types) */
ArgTypeList = Predefined->Info.ArgumentList;
ArgCount = METHOD_GET_ARG_COUNT (ArgTypeList);
/*
* Setup the ACPI-required number of arguments, regardless of what
* the actual method defines. If there is a difference, then the
* method is wrong and a warning will be issued during execution.
*/
ThisParam = Params;
for (i = 0; i < ArgCount; i++)
{
ArgType = METHOD_GET_NEXT_TYPE (ArgTypeList);
ThisParam->Type = ArgType;
switch (ArgType)
{
case ACPI_TYPE_INTEGER:
ThisParam->Integer.Value = 1;
break;
case ACPI_TYPE_STRING:
ThisParam->String.Pointer = __UNCONST(
"This is the default argument string");
ThisParam->String.Length = ACPI_STRLEN (ThisParam->String.Pointer);
break;
case ACPI_TYPE_BUFFER:
ThisParam->Buffer.Pointer = (UINT8 *) Params; /* just a garbage buffer */
ThisParam->Buffer.Length = 48;
break;
case ACPI_TYPE_PACKAGE:
ThisParam->Package.Elements = NULL;
ThisParam->Package.Count = 0;
break;
default:
AcpiOsPrintf ("%s: Unsupported argument type: %u\n",
Pathname, ArgType);
break;
}
ThisParam++;
}
ParamObjects.Count = ArgCount;
ParamObjects.Pointer = Params;
}
ACPI_FREE (ObjInfo);
ReturnObj.Pointer = NULL;
ReturnObj.Length = ACPI_ALLOCATE_BUFFER;
/* Do the actual method execution */
AcpiGbl_MethodExecuting = TRUE;
Status = AcpiEvaluateObject (Node, NULL, &ParamObjects, &ReturnObj);
AcpiOsPrintf ("%-32s returned %s\n", Pathname, AcpiFormatException (Status));
AcpiGbl_MethodExecuting = FALSE;
ACPI_FREE (Pathname);
/* Ignore status from method execution */
Status = AE_OK;
/* Update count, check if we have executed enough methods */
Info->Count++;
if (Info->Count >= Info->MaxCount)
{
Status = AE_CTRL_TERMINATE;
}
return (Status);
}
ACPI_STATUS
AcpiEvaluateObjectTyped (
ACPI_HANDLE Handle,
ACPI_STRING Pathname,
ACPI_OBJECT_LIST *ExternalParams,
ACPI_BUFFER *ReturnBuffer,
ACPI_OBJECT_TYPE ReturnType)
{
ACPI_STATUS Status;
BOOLEAN FreeBufferOnError = FALSE;
ACPI_HANDLE TargetHandle;
char *FullPathname;
ACPI_FUNCTION_TRACE (AcpiEvaluateObjectTyped);
/* Return buffer must be valid */
if (!ReturnBuffer)
{
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
if (ReturnBuffer->Length == ACPI_ALLOCATE_BUFFER)
{
FreeBufferOnError = TRUE;
}
/* Get a handle here, in order to build an error message if needed */
TargetHandle = Handle;
if (Pathname)
{
Status = AcpiGetHandle (Handle, Pathname, &TargetHandle);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
}
FullPathname = AcpiNsGetExternalPathname (TargetHandle);
if (!FullPathname)
{
return_ACPI_STATUS (AE_NO_MEMORY);
}
/* Evaluate the object */
Status = AcpiEvaluateObject (TargetHandle, NULL, ExternalParams,
ReturnBuffer);
if (ACPI_FAILURE (Status))
{
goto Exit;
}
/* Type ANY means "don't care about return value type" */
if (ReturnType == ACPI_TYPE_ANY)
{
goto Exit;
}
if (ReturnBuffer->Length == 0)
{
/* Error because caller specifically asked for a return value */
ACPI_ERROR ((AE_INFO, "%s did not return any object",
FullPathname));
Status = AE_NULL_OBJECT;
goto Exit;
}
/* Examine the object type returned from EvaluateObject */
if (((ACPI_OBJECT *) ReturnBuffer->Pointer)->Type == ReturnType)
{
goto Exit;
}
/* Return object type does not match requested type */
ACPI_ERROR ((AE_INFO,
"Incorrect return type from %s - received [%s], requested [%s]",
FullPathname,
AcpiUtGetTypeName (((ACPI_OBJECT *) ReturnBuffer->Pointer)->Type),
AcpiUtGetTypeName (ReturnType)));
if (FreeBufferOnError)
{
/*
* Free a buffer created via ACPI_ALLOCATE_BUFFER.
* Note: We use AcpiOsFree here because AcpiOsAllocate was used
* to allocate the buffer. This purposefully bypasses the
* (optionally enabled) allocation tracking mechanism since we
* only want to track internal allocations.
*/
AcpiOsFree (ReturnBuffer->Pointer);
ReturnBuffer->Pointer = NULL;
}
ReturnBuffer->Length = 0;
Status = AE_TYPE;
Exit:
ACPI_FREE (FullPathname);
return_ACPI_STATUS (Status);
}
void
AcpiDmAddNodeToExternalList (
ACPI_NAMESPACE_NODE *Node,
UINT8 Type,
UINT32 Value,
UINT16 Flags)
{
char *ExternalPath;
char *InternalPath;
char *Temp;
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (DmAddNodeToExternalList);
if (!Node)
{
return_VOID;
}
/* Get the full external and internal pathnames to the node */
ExternalPath = AcpiNsGetExternalPathname (Node);
if (!ExternalPath)
{
return_VOID;
}
Status = AcpiNsInternalizeName (ExternalPath, &InternalPath);
if (ACPI_FAILURE (Status))
{
ACPI_FREE (ExternalPath);
return_VOID;
}
/* Remove the root backslash */
if ((*ExternalPath == AML_ROOT_PREFIX) && (ExternalPath[1]))
{
Temp = ACPI_ALLOCATE_ZEROED (strlen (ExternalPath) + 1);
if (!Temp)
{
return_VOID;
}
strcpy (Temp, &ExternalPath[1]);
ACPI_FREE (ExternalPath);
ExternalPath = Temp;
}
/* Create the new External() declaration node */
Status = AcpiDmCreateNewExternal (ExternalPath, InternalPath, Type,
Value, (Flags | ACPI_EXT_INTERNAL_PATH_ALLOCATED));
if (ACPI_FAILURE (Status))
{
ACPI_FREE (ExternalPath);
ACPI_FREE (InternalPath);
}
return_VOID;
}
ACPI_STATUS
AcpiNsCheckPredefinedNames (
ACPI_NAMESPACE_NODE *Node,
UINT32 UserParamCount,
ACPI_STATUS ReturnStatus,
ACPI_OPERAND_OBJECT **ReturnObjectPtr)
{
ACPI_OPERAND_OBJECT *ReturnObject = *ReturnObjectPtr;
ACPI_STATUS Status = AE_OK;
const ACPI_PREDEFINED_INFO *Predefined;
char *Pathname;
ACPI_PREDEFINED_DATA *Data;
/* Match the name for this method/object against the predefined list */
Predefined = AcpiNsCheckForPredefinedName (Node);
/* Get the full pathname to the object, for use in warning messages */
#ifdef ACPI_DEBUG_OUTPUT /* AB */
Pathname = AcpiNsGetExternalPathname (Node);
#else
Pathname = NULL;
#endif
if (!Pathname)
{
return (AE_OK); /* Could not get pathname, ignore */
}
/*
* Check that the parameter count for this method matches the ASL
* definition. For predefined names, ensure that both the caller and
* the method itself are in accordance with the ACPI specification.
*/
AcpiNsCheckParameterCount (Pathname, Node, UserParamCount, Predefined);
/* If not a predefined name, we cannot validate the return object */
if (!Predefined)
{
goto Cleanup;
}
/*
* If the method failed or did not actually return an object, we cannot
* validate the return object
*/
if ((ReturnStatus != AE_OK) && (ReturnStatus != AE_CTRL_RETURN_VALUE))
{
goto Cleanup;
}
/*
* If there is no return value, check if we require a return value for
* this predefined name. Either one return value is expected, or none,
* for both methods and other objects.
*
* Exit now if there is no return object. Warning if one was expected.
*/
if (!ReturnObject)
{
if ((Predefined->Info.ExpectedBtypes) &&
(!(Predefined->Info.ExpectedBtypes & ACPI_RTYPE_NONE)))
{
ACPI_WARN_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
"Missing expected return value"));
Status = AE_AML_NO_RETURN_VALUE;
}
goto Cleanup;
}
/*
* 1) We have a return value, but if one wasn't expected, just exit, this is
* not a problem. For example, if the "Implicit Return" feature is
* enabled, methods will always return a value.
*
* 2) If the return value can be of any type, then we cannot perform any
* validation, exit.
*/
if ((!Predefined->Info.ExpectedBtypes) ||
(Predefined->Info.ExpectedBtypes == ACPI_RTYPE_ALL))
{
goto Cleanup;
}
/* Create the parameter data block for object validation */
Data = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_PREDEFINED_DATA));
if (!Data)
{
goto Cleanup;
}
Data->Predefined = Predefined;
Data->NodeFlags = Node->Flags;
Data->Pathname = Pathname;
/*
* Check that the type of the return object is what is expected for
* this predefined name
*/
Status = AcpiNsCheckObjectType (Data, ReturnObjectPtr,
Predefined->Info.ExpectedBtypes, ACPI_NOT_PACKAGE_ELEMENT);
if (ACPI_FAILURE (Status))
{
goto CheckValidationStatus;
}
/* For returned Package objects, check the type of all sub-objects */
if (ReturnObject->Common.Type == ACPI_TYPE_PACKAGE)
{
Status = AcpiNsCheckPackage (Data, ReturnObjectPtr);
}
CheckValidationStatus:
/*
* If the object validation failed or if we successfully repaired one
* or more objects, mark the parent node to suppress further warning
* messages during the next evaluation of the same method/object.
*/
if (ACPI_FAILURE (Status) || (Data->Flags & ACPI_OBJECT_REPAIRED))
{
Node->Flags |= ANOBJ_EVALUATED;
}
ACPI_FREE (Data);
Cleanup:
ACPI_FREE (Pathname);
return (Status);
}
static ACPI_STATUS
MpNamespaceXrefBegin (
ACPI_PARSE_OBJECT *Op,
UINT32 Level,
void *Context)
{
ACPI_GPIO_INFO *Info = ACPI_CAST_PTR (ACPI_GPIO_INFO, Context);
const ACPI_OPCODE_INFO *OpInfo;
char *DevicePathname;
ACPI_PARSE_OBJECT *ParentOp;
char *HidString;
ACPI_FUNCTION_TRACE_PTR (MpNamespaceXrefBegin, Op);
/*
* If this node is the actual declaration of a name
* [such as the XXXX name in "Method (XXXX)"],
* we are not interested in it here. We only care about names that
* are references to other objects within the namespace and the
* parent objects of name declarations
*/
if (Op->Asl.CompileFlags & NODE_IS_NAME_DECLARATION)
{
return (AE_OK);
}
/* We are only interested in opcodes that have an associated name */
OpInfo = AcpiPsGetOpcodeInfo (Op->Asl.AmlOpcode);
if ((OpInfo->Flags & AML_NAMED) ||
(OpInfo->Flags & AML_CREATE))
{
return (AE_OK);
}
if ((Op->Asl.ParseOpcode != PARSEOP_NAMESTRING) &&
(Op->Asl.ParseOpcode != PARSEOP_NAMESEG) &&
(Op->Asl.ParseOpcode != PARSEOP_METHODCALL))
{
return (AE_OK);
}
if (!Op->Asl.Node)
{
return (AE_OK);
}
ParentOp = Op->Asl.Parent;
if (ParentOp->Asl.ParseOpcode == PARSEOP_FIELD)
{
return (AE_OK);
}
if (Op->Asl.Node == Info->TargetNode)
{
while (ParentOp && (!ParentOp->Asl.Node))
{
ParentOp = ParentOp->Asl.Parent;
}
if (ParentOp)
{
DevicePathname = AcpiNsGetExternalPathname (
ParentOp->Asl.Node);
if (!Info->References)
{
FlPrintFile (ASL_FILE_MAP_OUTPUT, " // References:");
}
HidString = MpGetHidViaNamestring (DevicePathname);
FlPrintFile (ASL_FILE_MAP_OUTPUT, " %s [%s]",
DevicePathname, HidString);
Info->References++;
ACPI_FREE (DevicePathname);
}
}
return (AE_OK);
}
static ACPI_STATUS
AcpiNsInitOneDevice (
ACPI_HANDLE ObjHandle,
UINT32 NestingLevel,
void *Context,
void **ReturnValue)
{
ACPI_DEVICE_WALK_INFO *WalkInfo = ACPI_CAST_PTR (ACPI_DEVICE_WALK_INFO, Context);
ACPI_EVALUATE_INFO *Info = WalkInfo->EvaluateInfo;
UINT32 Flags;
ACPI_STATUS Status;
ACPI_NAMESPACE_NODE *DeviceNode;
ACPI_FUNCTION_TRACE (NsInitOneDevice);
/* We are interested in Devices, Processors and ThermalZones only */
DeviceNode = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle);
if ((DeviceNode->Type != ACPI_TYPE_DEVICE) &&
(DeviceNode->Type != ACPI_TYPE_PROCESSOR) &&
(DeviceNode->Type != ACPI_TYPE_THERMAL))
{
return_ACPI_STATUS (AE_OK);
}
/*
* Because of an earlier namespace analysis, all subtrees that contain an
* _INI method are tagged.
*
* If this device subtree does not contain any _INI methods, we
* can exit now and stop traversing this entire subtree.
*/
if (!(DeviceNode->Flags & ANOBJ_SUBTREE_HAS_INI))
{
return_ACPI_STATUS (AE_CTRL_DEPTH);
}
/*
* Run _STA to determine if this device is present and functioning. We
* must know this information for two important reasons (from ACPI spec):
*
* 1) We can only run _INI if the device is present.
* 2) We must abort the device tree walk on this subtree if the device is
* not present and is not functional (we will not examine the children)
*
* The _STA method is not required to be present under the device, we
* assume the device is present if _STA does not exist.
*/
ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (
ACPI_TYPE_METHOD, DeviceNode, METHOD_NAME__STA));
Status = AcpiUtExecute_STA (DeviceNode, &Flags);
if (ACPI_FAILURE (Status))
{
/* Ignore error and move on to next device */
return_ACPI_STATUS (AE_OK);
}
/*
* Flags == -1 means that _STA was not found. In this case, we assume that
* the device is both present and functional.
*
* From the ACPI spec, description of _STA:
*
* "If a device object (including the processor object) does not have an
* _STA object, then OSPM assumes that all of the above bits are set (in
* other words, the device is present, ..., and functioning)"
*/
if (Flags != ACPI_UINT32_MAX)
{
WalkInfo->Num_STA++;
}
/*
* Examine the PRESENT and FUNCTIONING status bits
*
* Note: ACPI spec does not seem to specify behavior for the present but
* not functioning case, so we assume functioning if present.
*/
if (!(Flags & ACPI_STA_DEVICE_PRESENT))
{
/* Device is not present, we must examine the Functioning bit */
if (Flags & ACPI_STA_DEVICE_FUNCTIONING)
{
/*
* Device is not present but is "functioning". In this case,
* we will not run _INI, but we continue to examine the children
* of this device.
*
* From the ACPI spec, description of _STA: (Note - no mention
* of whether to run _INI or not on the device in question)
*
* "_STA may return bit 0 clear (not present) with bit 3 set
* (device is functional). This case is used to indicate a valid
* device for which no device driver should be loaded (for example,
* a bridge device.) Children of this device may be present and
* valid. OSPM should continue enumeration below a device whose
* _STA returns this bit combination"
*/
return_ACPI_STATUS (AE_OK);
}
else
{
/*
* Device is not present and is not functioning. We must abort the
* walk of this subtree immediately -- don't look at the children
* of such a device.
*
* From the ACPI spec, description of _INI:
*
* "If the _STA method indicates that the device is not present,
* OSPM will not run the _INI and will not examine the children
* of the device for _INI methods"
*/
return_ACPI_STATUS (AE_CTRL_DEPTH);
}
}
/*
* The device is present or is assumed present if no _STA exists.
* Run the _INI if it exists (not required to exist)
*
* Note: We know there is an _INI within this subtree, but it may not be
* under this particular device, it may be lower in the branch.
*/
ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (
ACPI_TYPE_METHOD, DeviceNode, METHOD_NAME__INI));
ACPI_MEMSET (Info, 0, sizeof (ACPI_EVALUATE_INFO));
Info->PrefixNode = DeviceNode;
Info->RelativePathname = METHOD_NAME__INI;
Info->Parameters = NULL;
Info->Flags = ACPI_IGNORE_RETURN_VALUE;
Status = AcpiNsEvaluate (Info);
if (ACPI_SUCCESS (Status))
{
WalkInfo->Num_INI++;
}
#ifdef ACPI_DEBUG_OUTPUT
else if (Status != AE_NOT_FOUND)
{
/* Ignore error and move on to next device */
char *ScopeName = AcpiNsGetExternalPathname (Info->Node);
ACPI_EXCEPTION ((AE_INFO, Status, "during %s._INI execution",
ScopeName));
ACPI_FREE (ScopeName);
}
#endif
/* Ignore errors from above */
Status = AE_OK;
/*
* The _INI method has been run if present; call the Global Initialization
* Handler for this device.
*/
if (AcpiGbl_InitHandler)
{
Status = AcpiGbl_InitHandler (DeviceNode, ACPI_INIT_DEVICE_INI);
}
return_ACPI_STATUS (Status);
}
static ACPI_STATUS
AcpiDbWalkForExecute (
ACPI_HANDLE ObjHandle,
UINT32 NestingLevel,
void *Context,
void **ReturnValue)
{
ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;
ACPI_EXECUTE_WALK *Info = (ACPI_EXECUTE_WALK *) Context;
ACPI_BUFFER ReturnObj;
ACPI_STATUS Status;
char *Pathname;
UINT32 i;
ACPI_DEVICE_INFO *ObjInfo;
ACPI_OBJECT_LIST ParamObjects;
ACPI_OBJECT Params[ACPI_METHOD_NUM_ARGS];
const ACPI_PREDEFINED_INFO *Predefined;
Predefined = AcpiNsCheckForPredefinedName (Node);
if (!Predefined)
{
return (AE_OK);
}
if (Node->Type == ACPI_TYPE_LOCAL_SCOPE)
{
return (AE_OK);
}
Pathname = AcpiNsGetExternalPathname (Node);
if (!Pathname)
{
return (AE_OK);
}
/* Get the object info for number of method parameters */
Status = AcpiGetObjectInfo (ObjHandle, &ObjInfo);
if (ACPI_FAILURE (Status))
{
return (Status);
}
ParamObjects.Pointer = NULL;
ParamObjects.Count = 0;
if (ObjInfo->Type == ACPI_TYPE_METHOD)
{
/* Setup default parameters */
for (i = 0; i < ObjInfo->ParamCount; i++)
{
Params[i].Type = ACPI_TYPE_INTEGER;
Params[i].Integer.Value = 1;
}
ParamObjects.Pointer = Params;
ParamObjects.Count = ObjInfo->ParamCount;
}
ACPI_FREE (ObjInfo);
ReturnObj.Pointer = NULL;
ReturnObj.Length = ACPI_ALLOCATE_BUFFER;
/* Do the actual method execution */
AcpiGbl_MethodExecuting = TRUE;
Status = AcpiEvaluateObject (Node, NULL, &ParamObjects, &ReturnObj);
AcpiOsPrintf ("%-32s returned %s\n", Pathname, AcpiFormatException (Status));
AcpiGbl_MethodExecuting = FALSE;
ACPI_FREE (Pathname);
/* Ignore status from method execution */
Status = AE_OK;
/* Update count, check if we have executed enough methods */
Info->Count++;
if (Info->Count >= Info->MaxCount)
{
Status = AE_CTRL_TERMINATE;
}
return (Status);
}
ACPI_STATUS
AcpiNsEvaluate (
ACPI_EVALUATE_INFO *Info)
{
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (NsEvaluate);
if (!Info)
{
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
if (!Info->Node)
{
/*
* Get the actual namespace node for the target object if we
* need to. Handles these cases:
*
* 1) Null node, valid pathname from root (absolute path)
* 2) Node and valid pathname (path relative to Node)
* 3) Node, Null pathname
*/
Status = AcpiNsGetNode (Info->PrefixNode, Info->RelativePathname,
ACPI_NS_NO_UPSEARCH, &Info->Node);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
}
/*
* For a method alias, we must grab the actual method node so that
* proper scoping context will be established before execution.
*/
if (AcpiNsGetType (Info->Node) == ACPI_TYPE_LOCAL_METHOD_ALIAS)
{
Info->Node = ACPI_CAST_PTR (
ACPI_NAMESPACE_NODE, Info->Node->Object);
}
/* Complete the info block initialization */
Info->ReturnObject = NULL;
Info->NodeFlags = Info->Node->Flags;
Info->ObjDesc = AcpiNsGetAttachedObject (Info->Node);
ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "%s [%p] Value %p\n",
Info->RelativePathname, Info->Node,
AcpiNsGetAttachedObject (Info->Node)));
/* Get info if we have a predefined name (_HID, etc.) */
Info->Predefined = AcpiUtMatchPredefinedMethod (Info->Node->Name.Ascii);
/* Get the full pathname to the object, for use in warning messages */
Info->FullPathname = AcpiNsGetExternalPathname (Info->Node);
if (!Info->FullPathname)
{
return_ACPI_STATUS (AE_NO_MEMORY);
}
/* Count the number of arguments being passed in */
Info->ParamCount = 0;
if (Info->Parameters)
{
while (Info->Parameters[Info->ParamCount])
{
Info->ParamCount++;
}
/* Warn on impossible argument count */
if (Info->ParamCount > ACPI_METHOD_NUM_ARGS)
{
ACPI_WARN_PREDEFINED ((AE_INFO, Info->FullPathname, ACPI_WARN_ALWAYS,
"Excess arguments (%u) - using only %u",
Info->ParamCount, ACPI_METHOD_NUM_ARGS));
Info->ParamCount = ACPI_METHOD_NUM_ARGS;
}
}
/*
* For predefined names: Check that the declared argument count
* matches the ACPI spec -- otherwise this is a BIOS error.
*/
AcpiNsCheckAcpiCompliance (Info->FullPathname, Info->Node,
Info->Predefined);
/*
* For all names: Check that the incoming argument count for
* this method/object matches the actual ASL/AML definition.
*/
AcpiNsCheckArgumentCount (Info->FullPathname, Info->Node,
Info->ParamCount, Info->Predefined);
/* For predefined names: Typecheck all incoming arguments */
AcpiNsCheckArgumentTypes (Info);
/*
* Three major evaluation cases:
*
* 1) Object types that cannot be evaluated by definition
* 2) The object is a control method -- execute it
* 3) The object is not a method -- just return it's current value
*/
switch (AcpiNsGetType (Info->Node))
{
case ACPI_TYPE_DEVICE:
case ACPI_TYPE_EVENT:
case ACPI_TYPE_MUTEX:
case ACPI_TYPE_REGION:
case ACPI_TYPE_THERMAL:
case ACPI_TYPE_LOCAL_SCOPE:
/*
* 1) Disallow evaluation of certain object types. For these,
* object evaluation is undefined and not supported.
*/
ACPI_ERROR ((AE_INFO,
"%s: Evaluation of object type [%s] is not supported",
Info->FullPathname,
AcpiUtGetTypeName (Info->Node->Type)));
Status = AE_TYPE;
goto Cleanup;
case ACPI_TYPE_METHOD:
/*
* 2) Object is a control method - execute it
*/
/* Verify that there is a method object associated with this node */
if (!Info->ObjDesc)
{
ACPI_ERROR ((AE_INFO, "%s: Method has no attached sub-object",
Info->FullPathname));
Status = AE_NULL_OBJECT;
goto Cleanup;
}
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
"**** Execute method [%s] at AML address %p length %X\n",
Info->FullPathname,
Info->ObjDesc->Method.AmlStart + 1,
Info->ObjDesc->Method.AmlLength - 1));
/*
* Any namespace deletion must acquire both the namespace and
* interpreter locks to ensure that no thread is using the portion of
* the namespace that is being deleted.
*
* Execute the method via the interpreter. The interpreter is locked
* here before calling into the AML parser
*/
AcpiExEnterInterpreter ();
Status = AcpiPsExecuteMethod (Info);
AcpiExExitInterpreter ();
break;
default:
/*
* 3) All other non-method objects -- get the current object value
*/
/*
* Some objects require additional resolution steps (e.g., the Node
* may be a field that must be read, etc.) -- we can't just grab
* the object out of the node.
*
* Use ResolveNodeToValue() to get the associated value.
*
* NOTE: we can get away with passing in NULL for a walk state because
* the Node is guaranteed to not be a reference to either a method
* local or a method argument (because this interface is never called
* from a running method.)
*
* Even though we do not directly invoke the interpreter for object
* resolution, we must lock it because we could access an OpRegion.
* The OpRegion access code assumes that the interpreter is locked.
*/
AcpiExEnterInterpreter ();
/* TBD: ResolveNodeToValue has a strange interface, fix */
Info->ReturnObject = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, Info->Node);
Status = AcpiExResolveNodeToValue (ACPI_CAST_INDIRECT_PTR (
ACPI_NAMESPACE_NODE, &Info->ReturnObject), NULL);
AcpiExExitInterpreter ();
if (ACPI_FAILURE (Status))
{
goto Cleanup;
}
ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "Returned object %p [%s]\n",
Info->ReturnObject,
AcpiUtGetObjectTypeName (Info->ReturnObject)));
Status = AE_CTRL_RETURN_VALUE; /* Always has a "return value" */
break;
}
/*
* For predefined names, check the return value against the ACPI
* specification. Some incorrect return value types are repaired.
*/
(void) AcpiNsCheckReturnValue (Info->Node, Info, Info->ParamCount,
Status, &Info->ReturnObject);
/* Check if there is a return value that must be dealt with */
if (Status == AE_CTRL_RETURN_VALUE)
{
/* If caller does not want the return value, delete it */
if (Info->Flags & ACPI_IGNORE_RETURN_VALUE)
{
AcpiUtRemoveReference (Info->ReturnObject);
Info->ReturnObject = NULL;
}
/* Map AE_CTRL_RETURN_VALUE to AE_OK, we are done with it */
Status = AE_OK;
}
ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
"*** Completed evaluation of object %s ***\n",
Info->RelativePathname));
Cleanup:
/*
* Namespace was unlocked by the handling AcpiNs* function, so we
* just free the pathname and return
*/
ACPI_FREE (Info->FullPathname);
Info->FullPathname = NULL;
return_ACPI_STATUS (Status);
}
static char *
AcpiDmNormalizeParentPrefix (
ACPI_PARSE_OBJECT *Op,
char *Path)
{
ACPI_NAMESPACE_NODE *Node;
char *Fullpath;
char *ParentPath;
ACPI_SIZE Length;
/* Search upwards in the parse tree until we reach a namespace node */
while (Op)
{
if (Op->Common.Node)
{
break;
}
Op = Op->Common.Parent;
}
if (!Op)
{
return (NULL);
}
/*
* Find the actual parent node for the reference:
* Remove all carat prefixes from the input path.
* There may be multiple parent prefixes (For example, ^^^M000)
*/
Node = Op->Common.Node;
while (Node && (*Path == (UINT8) AML_PARENT_PREFIX))
{
Node = AcpiNsGetParentNode (Node);
Path++;
}
if (!Node)
{
return (NULL);
}
/* Get the full pathname for the parent node */
ParentPath = AcpiNsGetExternalPathname (Node);
if (!ParentPath)
{
return (NULL);
}
Length = (ACPI_STRLEN (ParentPath) + ACPI_STRLEN (Path) + 1);
Fullpath = ACPI_ALLOCATE_ZEROED (Length);
if (!Fullpath)
{
goto Cleanup;
}
/*
* Concatenate parent fullpath and path. For example,
* parent fullpath "\_SB_", Path "^INIT", Fullpath "\_SB_.INIT"
*
* Copy the parent path
*/
ACPI_STRCAT (Fullpath, ParentPath);
/* Add dot separator (don't need dot if parent fullpath is a single "\") */
if (ParentPath[1])
{
ACPI_STRCAT (Fullpath, ".");
}
/* Copy child path (carat parent prefix(es) were skipped above) */
ACPI_STRCAT (Fullpath, Path);
Cleanup:
ACPI_FREE (ParentPath);
return (Fullpath);
}
