static ACPI_STATUS
LdCommonNamespaceEnd (
ACPI_PARSE_OBJECT *Op,
UINT32 Level,
void *Context)
{
ACPI_WALK_STATE *WalkState = (ACPI_WALK_STATE *) Context;
ACPI_OBJECT_TYPE ObjectType;
BOOLEAN ForceNewScope = FALSE;
ACPI_FUNCTION_NAME (LdCommonNamespaceEnd);
/* We are only interested in opcodes that have an associated name */
if (!Op->Asl.Namepath)
{
return (AE_OK);
}
/* Get the type to determine if we should pop the scope */
if ((Op->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG) &&
(Op->Asl.CompileFlags == NODE_IS_RESOURCE_DESC))
{
/* TBD: Merge into AcpiDsMapNamedOpcodeToDataType */
ObjectType = ACPI_TYPE_LOCAL_RESOURCE;
}
else
{
ObjectType = AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode);
}
/* Pop scope that was pushed for Resource Templates */
if (Op->Asl.ParseOpcode == PARSEOP_NAME)
{
if (Op->Asl.CompileFlags & NODE_IS_RESOURCE_DESC)
{
ForceNewScope = TRUE;
}
}
/* Pop the scope stack */
if (ForceNewScope || AcpiNsOpensScope (ObjectType))
{
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
"(%s): Popping scope for Op [%s] %p\n",
AcpiUtGetTypeName (ObjectType), Op->Asl.ParseOpName, Op));
(void) AcpiDsScopeStackPop (WalkState);
}
return (AE_OK);
}
static ACPI_STATUS
XfNamespaceLocateEnd (
ACPI_PARSE_OBJECT *Op,
UINT32 Level,
void *Context)
{
ACPI_WALK_STATE *WalkState = (ACPI_WALK_STATE *) Context;
const ACPI_OPCODE_INFO *OpInfo;
ACPI_FUNCTION_TRACE (XfNamespaceLocateEnd);
/* We are only interested in opcodes that have an associated name */
OpInfo = AcpiPsGetOpcodeInfo (Op->Asl.AmlOpcode);
if (!(OpInfo->Flags & AML_NAMED))
{
return_ACPI_STATUS (AE_OK);
}
/* Not interested in name references, we did not open a scope for them */
if ((Op->Asl.ParseOpcode == PARSEOP_NAMESTRING) ||
(Op->Asl.ParseOpcode == PARSEOP_NAMESEG) ||
(Op->Asl.ParseOpcode == PARSEOP_METHODCALL) ||
(Op->Asl.ParseOpcode == PARSEOP_EXTERNAL))
{
return_ACPI_STATUS (AE_OK);
}
/* Pop the scope stack if necessary */
if (AcpiNsOpensScope (AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode)))
{
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
"%s: Popping scope for Op %p\n",
AcpiUtGetTypeName (OpInfo->ObjectType), Op));
(void) AcpiDsScopeStackPop (WalkState);
}
return_ACPI_STATUS (AE_OK);
}
static ACPI_STATUS
AcpiDmCommonAscendingOp (
ACPI_PARSE_OBJECT *Op,
UINT32 Level,
void *Context)
{
ACPI_OP_WALK_INFO *Info = Context;
const ACPI_OPCODE_INFO *OpInfo;
ACPI_OBJECT_TYPE ObjectType;
/* Close scope if necessary */
OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
ObjectType = OpInfo->ObjectType;
ObjectType = AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode);
if (AcpiNsOpensScope (ObjectType))
{
(void) AcpiDsScopeStackPop (Info->WalkState);
}
return (AE_OK);
}
ACPI_STATUS
AcpiDsExecBeginOp (
ACPI_WALK_STATE *WalkState,
ACPI_PARSE_OBJECT **OutOp)
{
ACPI_PARSE_OBJECT *Op;
ACPI_STATUS Status = AE_OK;
UINT32 OpcodeClass;
ACPI_FUNCTION_TRACE_PTR (DsExecBeginOp, WalkState);
Op = WalkState->Op;
if (!Op)
{
Status = AcpiDsLoad2BeginOp (WalkState, OutOp);
if (ACPI_FAILURE (Status))
{
goto ErrorExit;
}
Op = *OutOp;
WalkState->Op = Op;
WalkState->Opcode = Op->Common.AmlOpcode;
WalkState->OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
if (AcpiNsOpensScope (WalkState->OpInfo->ObjectType))
{
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
"(%s) Popping scope for Op %p\n",
AcpiUtGetTypeName (WalkState->OpInfo->ObjectType), Op));
Status = AcpiDsScopeStackPop (WalkState);
if (ACPI_FAILURE (Status))
{
goto ErrorExit;
}
}
}
if (Op == WalkState->Origin)
{
if (OutOp)
{
*OutOp = Op;
}
return_ACPI_STATUS (AE_OK);
}
/*
* If the previous opcode was a conditional, this opcode
* must be the beginning of the associated predicate.
* Save this knowledge in the current scope descriptor
*/
if ((WalkState->ControlState) &&
(WalkState->ControlState->Common.State ==
ACPI_CONTROL_CONDITIONAL_EXECUTING))
{
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
"Exec predicate Op=%p State=%p\n",
Op, WalkState));
WalkState->ControlState->Common.State =
ACPI_CONTROL_PREDICATE_EXECUTING;
/* Save start of predicate */
WalkState->ControlState->Control.PredicateOp = Op;
}
OpcodeClass = WalkState->OpInfo->Class;
/* We want to send namepaths to the load code */
if (Op->Common.AmlOpcode == AML_INT_NAMEPATH_OP)
{
OpcodeClass = AML_CLASS_NAMED_OBJECT;
}
/*
* Handle the opcode based upon the opcode type
*/
switch (OpcodeClass)
{
case AML_CLASS_CONTROL:
Status = AcpiDsExecBeginControlOp (WalkState, Op);
break;
case AML_CLASS_NAMED_OBJECT:
if (WalkState->WalkType & ACPI_WALK_METHOD)
{
/*
* Found a named object declaration during method execution;
* we must enter this object into the namespace. The created
* object is temporary and will be deleted upon completion of
* the execution of this method.
*
* Note 10/2010: Except for the Scope() op. This opcode does
* not actually create a new object, it refers to an existing
* object. However, for Scope(), we want to indeed open a
* new scope.
*/
if (Op->Common.AmlOpcode != AML_SCOPE_OP)
{
Status = AcpiDsLoad2BeginOp (WalkState, NULL);
}
else
{
Status = AcpiDsScopeStackPush (
Op->Named.Node, Op->Named.Node->Type, WalkState);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
}
}
break;
case AML_CLASS_EXECUTE:
case AML_CLASS_CREATE:
break;
default:
break;
}
/* Nothing to do here during method execution */
return_ACPI_STATUS (Status);
ErrorExit:
Status = AcpiDsMethodError (Status, WalkState);
return_ACPI_STATUS (Status);
}