diff options
Diffstat (limited to 'source/components/namespace/nsconvert.c')
| -rw-r--r-- | source/components/namespace/nsconvert.c | 86 |
1 files changed, 84 insertions, 2 deletions
diff --git a/source/components/namespace/nsconvert.c b/source/components/namespace/nsconvert.c index 84eeec1fa48a4..5d3eb033e713e 100644 --- a/source/components/namespace/nsconvert.c +++ b/source/components/namespace/nsconvert.c @@ -332,7 +332,8 @@ AcpiNsConvertToBuffer ( * * FUNCTION: AcpiNsConvertToUnicode * - * PARAMETERS: OriginalObject - ASCII String Object to be converted + * PARAMETERS: Scope - Namespace node for the method/object + * OriginalObject - ASCII String Object to be converted * ReturnObject - Where the new converted object is returned * * RETURN: Status. AE_OK if conversion was successful. @@ -343,6 +344,7 @@ AcpiNsConvertToBuffer ( ACPI_STATUS AcpiNsConvertToUnicode ( + ACPI_NAMESPACE_NODE *Scope, ACPI_OPERAND_OBJECT *OriginalObject, ACPI_OPERAND_OBJECT **ReturnObject) { @@ -404,7 +406,8 @@ AcpiNsConvertToUnicode ( * * FUNCTION: AcpiNsConvertToResource * - * PARAMETERS: OriginalObject - Object to be converted + * PARAMETERS: Scope - Namespace node for the method/object + * OriginalObject - Object to be converted * ReturnObject - Where the new converted object is returned * * RETURN: Status. AE_OK if conversion was successful @@ -416,6 +419,7 @@ AcpiNsConvertToUnicode ( ACPI_STATUS AcpiNsConvertToResource ( + ACPI_NAMESPACE_NODE *Scope, ACPI_OPERAND_OBJECT *OriginalObject, ACPI_OPERAND_OBJECT **ReturnObject) { @@ -482,3 +486,81 @@ AcpiNsConvertToResource ( *ReturnObject = NewObject; return (AE_OK); } + + +/******************************************************************************* + * + * FUNCTION: AcpiNsConvertToReference + * + * PARAMETERS: Scope - Namespace node for the method/object + * OriginalObject - Object to be converted + * ReturnObject - Where the new converted object is returned + * + * RETURN: Status. AE_OK if conversion was successful + * + * DESCRIPTION: Attempt to convert a Integer object to a ObjectReference. + * Buffer. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiNsConvertToReference ( + ACPI_NAMESPACE_NODE *Scope, + ACPI_OPERAND_OBJECT *OriginalObject, + ACPI_OPERAND_OBJECT **ReturnObject) +{ + ACPI_OPERAND_OBJECT *NewObject = NULL; + ACPI_STATUS Status; + ACPI_NAMESPACE_NODE *Node; + ACPI_GENERIC_STATE ScopeInfo; + char *Name; + + + ACPI_FUNCTION_NAME (NsConvertToReference); + + + /* Convert path into internal presentation */ + + Status = AcpiNsInternalizeName (OriginalObject->String.Pointer, &Name); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* Find the namespace node */ + + ScopeInfo.Scope.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Scope); + Status = AcpiNsLookup (&ScopeInfo, Name, + ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, + ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, NULL, &Node); + if (ACPI_FAILURE (Status)) + { + /* Check if we are resolving a named reference within a package */ + + ACPI_ERROR_NAMESPACE (OriginalObject->String.Pointer, Status); + goto ErrorExit; + } + + /* Create and init a new internal ACPI object */ + + NewObject = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_REFERENCE); + if (!NewObject) + { + Status = AE_NO_MEMORY; + goto ErrorExit; + } + NewObject->Reference.Node = Node; + NewObject->Reference.Object = Node->Object; + NewObject->Reference.Class = ACPI_REFCLASS_NAME; + + /* + * Increase reference of the object if needed (the object is likely a + * null for device nodes). + */ + AcpiUtAddReference (Node->Object); + +ErrorExit: + ACPI_FREE (Name); + *ReturnObject = NewObject; + return (AE_OK); +} |