static ACPI_STATUS
AcpiNsCheckObjectType (
ACPI_PREDEFINED_DATA *Data,
ACPI_OPERAND_OBJECT **ReturnObjectPtr,
UINT32 ExpectedBtypes,
UINT32 PackageIndex)
{
ACPI_OPERAND_OBJECT *ReturnObject = *ReturnObjectPtr;
ACPI_STATUS Status = AE_OK;
UINT32 ReturnBtype;
char TypeBuffer[48]; /* Room for 5 types */
/*
* If we get a NULL ReturnObject here, it is a NULL package element.
* Since all extraneous NULL package elements were removed earlier by a
* call to AcpiNsRemoveNullElements, this is an unexpected NULL element.
* We will attempt to repair it.
*/
if (!ReturnObject)
{
Status = AcpiNsRepairNullElement (Data, ExpectedBtypes,
PackageIndex, ReturnObjectPtr);
if (ACPI_SUCCESS (Status))
{
return (AE_OK); /* Repair was successful */
}
goto TypeErrorExit;
}
/* A Namespace node should not get here, but make sure */
if (ACPI_GET_DESCRIPTOR_TYPE (ReturnObject) == ACPI_DESC_TYPE_NAMED)
{
ACPI_WARN_PREDEFINED ((AE_INFO, Data->Pathname, Data->NodeFlags,
"Invalid return type - Found a Namespace node [%4.4s] type %s",
ReturnObject->Node.Name.Ascii,
AcpiUtGetTypeName (ReturnObject->Node.Type)));
return (AE_AML_OPERAND_TYPE);
}
/*
* Convert the object type (ACPI_TYPE_xxx) to a bitmapped object type.
* The bitmapped type allows multiple possible return types.
*
* Note, the cases below must handle all of the possible types returned
* from all of the predefined names (including elements of returned
* packages)
*/
switch (ReturnObject->Common.Type)
{
case ACPI_TYPE_INTEGER:
ReturnBtype = ACPI_RTYPE_INTEGER;
break;
case ACPI_TYPE_BUFFER:
ReturnBtype = ACPI_RTYPE_BUFFER;
break;
case ACPI_TYPE_STRING:
ReturnBtype = ACPI_RTYPE_STRING;
break;
case ACPI_TYPE_PACKAGE:
ReturnBtype = ACPI_RTYPE_PACKAGE;
break;
case ACPI_TYPE_LOCAL_REFERENCE:
ReturnBtype = ACPI_RTYPE_REFERENCE;
break;
default:
/* Not one of the supported objects, must be incorrect */
goto TypeErrorExit;
}
/* Is the object one of the expected types? */
if (ReturnBtype & ExpectedBtypes)
{
/* For reference objects, check that the reference type is correct */
if (ReturnObject->Common.Type == ACPI_TYPE_LOCAL_REFERENCE)
{
Status = AcpiNsCheckReference (Data, ReturnObject);
}
return (Status);
}
/* Type mismatch -- attempt repair of the returned object */
Status = AcpiNsRepairObject (Data, ExpectedBtypes,
PackageIndex, ReturnObjectPtr);
if (ACPI_SUCCESS (Status))
{
return (AE_OK); /* Repair was successful */
}
TypeErrorExit:
/* Create a string with all expected types for this predefined object */
AcpiNsGetExpectedTypes (TypeBuffer, ExpectedBtypes);
if (PackageIndex == ACPI_NOT_PACKAGE_ELEMENT)
{
ACPI_WARN_PREDEFINED ((AE_INFO, Data->Pathname, Data->NodeFlags,
"Return type mismatch - found %s, expected %s",
AcpiUtGetObjectTypeName (ReturnObject), TypeBuffer));
}
else
{
ACPI_WARN_PREDEFINED ((AE_INFO, Data->Pathname, Data->NodeFlags,
"Return Package type mismatch at index %u - "
"found %s, expected %s", PackageIndex,
AcpiUtGetObjectTypeName (ReturnObject), TypeBuffer));
}
return (AE_AML_OPERAND_TYPE);
}
ACPI_STATUS
AcpiNsSimpleRepair (
ACPI_EVALUATE_INFO *Info,
UINT32 ExpectedBtypes,
UINT32 PackageIndex,
ACPI_OPERAND_OBJECT **ReturnObjectPtr)
{
ACPI_OPERAND_OBJECT *ReturnObject = *ReturnObjectPtr;
ACPI_OPERAND_OBJECT *NewObject = NULL;
ACPI_STATUS Status;
const ACPI_SIMPLE_REPAIR_INFO *Predefined;
ACPI_FUNCTION_NAME (NsSimpleRepair);
/*
* Special repairs for certain names that are in the repair table.
* Check if this name is in the list of repairable names.
*/
Predefined = AcpiNsMatchSimpleRepair (Info->Node,
Info->ReturnBtype, PackageIndex);
if (Predefined)
{
if (!ReturnObject)
{
ACPI_WARN_PREDEFINED ((AE_INFO, Info->FullPathname,
ACPI_WARN_ALWAYS, "Missing expected return value"));
}
Status = Predefined->ObjectConverter (Info->Node, ReturnObject,
&NewObject);
if (ACPI_FAILURE (Status))
{
/* A fatal error occurred during a conversion */
ACPI_EXCEPTION ((AE_INFO, Status,
"During return object analysis"));
return (Status);
}
if (NewObject)
{
goto ObjectRepaired;
}
}
/*
* Do not perform simple object repair unless the return type is not
* expected.
*/
if (Info->ReturnBtype & ExpectedBtypes)
{
return (AE_OK);
}
/*
* At this point, we know that the type of the returned object was not
* one of the expected types for this predefined name. Attempt to
* repair the object by converting it to one of the expected object
* types for this predefined name.
*/
/*
* 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.
*
* Try to fix if there was no return object. Warning if failed to fix.
*/
if (!ReturnObject)
{
if (ExpectedBtypes && (!(ExpectedBtypes & ACPI_RTYPE_NONE)))
{
if (PackageIndex != ACPI_NOT_PACKAGE_ELEMENT)
{
ACPI_WARN_PREDEFINED ((AE_INFO, Info->FullPathname,
ACPI_WARN_ALWAYS, "Found unexpected NULL package element"));
Status = AcpiNsRepairNullElement (Info, ExpectedBtypes,
PackageIndex, ReturnObjectPtr);
if (ACPI_SUCCESS (Status))
{
return (AE_OK); /* Repair was successful */
}
}
else
{
ACPI_WARN_PREDEFINED ((AE_INFO, Info->FullPathname,
ACPI_WARN_ALWAYS, "Missing expected return value"));
}
return (AE_AML_NO_RETURN_VALUE);
}
}
if (ExpectedBtypes & ACPI_RTYPE_INTEGER)
{
Status = AcpiNsConvertToInteger (ReturnObject, &NewObject);
if (ACPI_SUCCESS (Status))
{
goto ObjectRepaired;
}
}
if (ExpectedBtypes & ACPI_RTYPE_STRING)
{
Status = AcpiNsConvertToString (ReturnObject, &NewObject);
if (ACPI_SUCCESS (Status))
{
goto ObjectRepaired;
}
}
if (ExpectedBtypes & ACPI_RTYPE_BUFFER)
{
Status = AcpiNsConvertToBuffer (ReturnObject, &NewObject);
if (ACPI_SUCCESS (Status))
{
goto ObjectRepaired;
}
}
if (ExpectedBtypes & ACPI_RTYPE_PACKAGE)
{
/*
* A package is expected. We will wrap the existing object with a
* new package object. It is often the case that if a variable-length
* package is required, but there is only a single object needed, the
* BIOS will return that object instead of wrapping it with a Package
* object. Note: after the wrapping, the package will be validated
* for correct contents (expected object type or types).
*/
Status = AcpiNsWrapWithPackage (Info, ReturnObject, &NewObject);
if (ACPI_SUCCESS (Status))
{
/*
* The original object just had its reference count
* incremented for being inserted into the new package.
*/
*ReturnObjectPtr = NewObject; /* New Package object */
Info->ReturnFlags |= ACPI_OBJECT_REPAIRED;
return (AE_OK);
}
}
/* We cannot repair this object */
return (AE_AML_OPERAND_TYPE);
ObjectRepaired:
/* Object was successfully repaired */
if (PackageIndex != ACPI_NOT_PACKAGE_ELEMENT)
{
/*
* The original object is a package element. We need to
* decrement the reference count of the original object,
* for removing it from the package.
*
* However, if the original object was just wrapped with a
* package object as part of the repair, we don't need to
* change the reference count.
*/
if (!(Info->ReturnFlags & ACPI_OBJECT_WRAPPED))
{
NewObject->Common.ReferenceCount =
ReturnObject->Common.ReferenceCount;
if (ReturnObject->Common.ReferenceCount > 1)
{
ReturnObject->Common.ReferenceCount--;
}
}
ACPI_DEBUG_PRINT ((ACPI_DB_REPAIR,
"%s: Converted %s to expected %s at Package index %u\n",
Info->FullPathname, AcpiUtGetObjectTypeName (ReturnObject),
AcpiUtGetObjectTypeName (NewObject), PackageIndex));
}
else
{
ACPI_DEBUG_PRINT ((ACPI_DB_REPAIR,
"%s: Converted %s to expected %s\n",
Info->FullPathname, AcpiUtGetObjectTypeName (ReturnObject),
AcpiUtGetObjectTypeName (NewObject)));
}
/* Delete old object, install the new return object */
AcpiUtRemoveReference (ReturnObject);
*ReturnObjectPtr = NewObject;
Info->ReturnFlags |= ACPI_OBJECT_REPAIRED;
return (AE_OK);
}
