*****************************************************************************/
/*
- * Copyright (C) 2000 - 2005, R. Byron Moore
+ * Copyright (C) 2000 - 2008, Intel Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
#include <acpi/acdispat.h>
#include <acpi/acinterp.h>
#include <acpi/acnamesp.h>
-#include <acpi/acparser.h>
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exresolv")
{
acpi_status status;
- ACPI_FUNCTION_TRACE_PTR("ex_resolve_to_value", stack_ptr);
+ ACPI_FUNCTION_TRACE_PTR(ex_resolve_to_value, stack_ptr);
if (!stack_ptr || !*stack_ptr) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Internal - null pointer\n"));
+ ACPI_ERROR((AE_INFO, "Internal - null pointer"));
return_ACPI_STATUS(AE_AML_NO_OPERAND);
}
}
if (!*stack_ptr) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Internal - null pointer\n"));
+ ACPI_ERROR((AE_INFO, "Internal - null pointer"));
return_ACPI_STATUS(AE_AML_NO_OPERAND);
}
}
{
acpi_status status = AE_OK;
union acpi_operand_object *stack_desc;
- void *temp_node;
- union acpi_operand_object *obj_desc;
- u16 opcode;
+ union acpi_operand_object *obj_desc = NULL;
+ u8 ref_type;
- ACPI_FUNCTION_TRACE("ex_resolve_object_to_value");
+ ACPI_FUNCTION_TRACE(ex_resolve_object_to_value);
stack_desc = *stack_ptr;
switch (ACPI_GET_OBJECT_TYPE(stack_desc)) {
case ACPI_TYPE_LOCAL_REFERENCE:
- opcode = stack_desc->reference.opcode;
+ ref_type = stack_desc->reference.class;
- switch (opcode) {
- case AML_NAME_OP:
-
- /*
- * Convert name reference to a namespace node
- * Then, acpi_ex_resolve_node_to_value can be used to get the value
- */
- temp_node = stack_desc->reference.object;
-
- /* Delete the Reference Object */
-
- acpi_ut_remove_reference(stack_desc);
-
- /* Return the namespace node */
-
- (*stack_ptr) = temp_node;
- break;
-
- case AML_LOCAL_OP:
- case AML_ARG_OP:
+ switch (ref_type) {
+ case ACPI_REFCLASS_LOCAL:
+ case ACPI_REFCLASS_ARG:
/*
* Get the local from the method's state info
* Note: this increments the local's object reference count
*/
- status = acpi_ds_method_data_get_value(opcode,
+ status = acpi_ds_method_data_get_value(ref_type,
stack_desc->
- reference.offset,
+ reference.value,
walk_state,
&obj_desc);
if (ACPI_FAILURE(status)) {
}
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "[Arg/Local %X] value_obj is %p\n",
- stack_desc->reference.offset,
+ "[Arg/Local %X] ValueObj is %p\n",
+ stack_desc->reference.value,
obj_desc));
/*
*stack_ptr = obj_desc;
break;
- case AML_INDEX_OP:
+ case ACPI_REFCLASS_INDEX:
switch (stack_desc->reference.target_type) {
case ACPI_TYPE_BUFFER_FIELD:
- /* Just return - leave the Reference on the stack */
+ /* Just return - do not dereference */
break;
case ACPI_TYPE_PACKAGE:
+ /* If method call or copy_object - do not dereference */
+
+ if ((walk_state->opcode ==
+ AML_INT_METHODCALL_OP)
+ || (walk_state->opcode == AML_COPY_OP)) {
+ break;
+ }
+
+ /* Otherwise, dereference the package_index to a package element */
+
obj_desc = *stack_desc->reference.where;
if (obj_desc) {
/*
- * Valid obj descriptor, copy pointer to return value
+ * Valid object descriptor, copy pointer to return value
* (i.e., dereference the package index)
* Delete the ref object, increment the returned object
*/
*stack_ptr = obj_desc;
} else {
/*
- * A NULL object descriptor means an unitialized element of
+ * A NULL object descriptor means an uninitialized element of
* the package, can't dereference it
*/
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Attempt to deref an Index to NULL pkg element Idx=%p\n",
- stack_desc));
+ ACPI_ERROR((AE_INFO,
+ "Attempt to dereference an Index to NULL package element Idx=%p",
+ stack_desc));
status = AE_AML_UNINITIALIZED_ELEMENT;
}
break;
/* Invalid reference object */
- ACPI_REPORT_ERROR(("During resolve, Unknown target_type %X in Index/Reference obj %p\n", stack_desc->reference.target_type, stack_desc));
+ ACPI_ERROR((AE_INFO,
+ "Unknown TargetType %X in Index/Reference object %p",
+ stack_desc->reference.target_type,
+ stack_desc));
status = AE_AML_INTERNAL;
break;
}
break;
- case AML_REF_OF_OP:
- case AML_DEBUG_OP:
- case AML_LOAD_OP:
+ case ACPI_REFCLASS_REFOF:
+ case ACPI_REFCLASS_DEBUG:
+ case ACPI_REFCLASS_TABLE:
- /* Just leave the object as-is */
+ /* Just leave the object as-is, do not dereference */
break;
- case AML_INT_NAMEPATH_OP: /* Reference to a named object */
+ case ACPI_REFCLASS_NAME: /* Reference to a named object */
- /* Get the object pointed to by the namespace node */
+ /* Dereference the name */
+
+ if ((stack_desc->reference.node->type ==
+ ACPI_TYPE_DEVICE)
+ || (stack_desc->reference.node->type ==
+ ACPI_TYPE_THERMAL)) {
+
+ /* These node types do not have 'real' subobjects */
+
+ *stack_ptr = (void *)stack_desc->reference.node;
+ } else {
+ /* Get the object pointed to by the namespace node */
+
+ *stack_ptr =
+ (stack_desc->reference.node)->object;
+ acpi_ut_add_reference(*stack_ptr);
+ }
- *stack_ptr = (stack_desc->reference.node)->object;
- acpi_ut_add_reference(*stack_ptr);
acpi_ut_remove_reference(stack_desc);
break;
default:
- ACPI_REPORT_ERROR(("During resolve, Unknown Reference opcode %X (%s) in %p\n", opcode, acpi_ps_get_opcode_name(opcode), stack_desc));
+ ACPI_ERROR((AE_INFO,
+ "Unknown Reference type %X in %p", ref_type,
+ stack_desc));
status = AE_AML_INTERNAL;
break;
}
status = acpi_ds_get_package_arguments(stack_desc);
break;
- /* These cases may never happen here, but just in case.. */
-
case ACPI_TYPE_BUFFER_FIELD:
case ACPI_TYPE_LOCAL_REGION_FIELD:
case ACPI_TYPE_LOCAL_BANK_FIELD:
case ACPI_TYPE_LOCAL_INDEX_FIELD:
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "field_read source_desc=%p Type=%X\n",
+ "FieldRead SourceDesc=%p Type=%X\n",
stack_desc,
ACPI_GET_OBJECT_TYPE(stack_desc)));
status =
acpi_ex_read_data_from_field(walk_state, stack_desc,
&obj_desc);
+
+ /* Remove a reference to the original operand, then override */
+
+ acpi_ut_remove_reference(*stack_ptr);
*stack_ptr = (void *)obj_desc;
break;
acpi_object_type type;
acpi_status status;
- ACPI_FUNCTION_TRACE("acpi_ex_resolve_multiple");
+ ACPI_FUNCTION_TRACE(acpi_ex_resolve_multiple);
/* Operand can be either a namespace node or an operand descriptor */
}
/*
- * For reference objects created via the ref_of or Index operators,
- * we need to get to the base object (as per the ACPI specification
- * of the object_type and size_of operators). This means traversing
- * the list of possibly many nested references.
+ * For reference objects created via the ref_of, Index, or Load/load_table
+ * operators, we need to get to the base object (as per the ACPI
+ * specification of the object_type and size_of operators). This means
+ * traversing the list of possibly many nested references.
*/
while (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REFERENCE) {
- switch (obj_desc->reference.opcode) {
- case AML_REF_OF_OP:
+ switch (obj_desc->reference.class) {
+ case ACPI_REFCLASS_REFOF:
+ case ACPI_REFCLASS_NAME:
/* Dereference the reference pointer */
- node = obj_desc->reference.object;
+ if (obj_desc->reference.class == ACPI_REFCLASS_REFOF) {
+ node = obj_desc->reference.object;
+ } else { /* AML_INT_NAMEPATH_OP */
+
+ node = obj_desc->reference.node;
+ }
/* All "References" point to a NS node */
if (ACPI_GET_DESCRIPTOR_TYPE(node) !=
ACPI_DESC_TYPE_NAMED) {
- ACPI_REPORT_ERROR(("acpi_ex_resolve_multiple: Not a NS node %p [%s]\n", node, acpi_ut_get_descriptor_name(node)));
+ ACPI_ERROR((AE_INFO, "Not a NS node %p [%s]",
+ node,
+ acpi_ut_get_descriptor_name(node)));
return_ACPI_STATUS(AE_AML_INTERNAL);
}
obj_desc = acpi_ns_get_attached_object(node);
if (!obj_desc) {
+
/* No object, use the NS node type */
type = acpi_ns_get_type(node);
}
break;
- case AML_INDEX_OP:
+ case ACPI_REFCLASS_INDEX:
/* Get the type of this reference (index into another object) */
*/
obj_desc = *(obj_desc->reference.where);
if (!obj_desc) {
+
/* NULL package elements are allowed */
type = 0; /* Uninitialized */
}
break;
- case AML_INT_NAMEPATH_OP:
+ case ACPI_REFCLASS_TABLE:
- /* Dereference the reference pointer */
-
- node = obj_desc->reference.node;
-
- /* All "References" point to a NS node */
-
- if (ACPI_GET_DESCRIPTOR_TYPE(node) !=
- ACPI_DESC_TYPE_NAMED) {
- ACPI_REPORT_ERROR(("acpi_ex_resolve_multiple: Not a NS node %p [%s]\n", node, acpi_ut_get_descriptor_name(node)));
- return_ACPI_STATUS(AE_AML_INTERNAL);
- }
-
- /* Get the attached object */
-
- obj_desc = acpi_ns_get_attached_object(node);
- if (!obj_desc) {
- /* No object, use the NS node type */
-
- type = acpi_ns_get_type(node);
- goto exit;
- }
-
- /* Check for circular references */
-
- if (obj_desc == operand) {
- return_ACPI_STATUS(AE_AML_CIRCULAR_REFERENCE);
- }
- break;
+ type = ACPI_TYPE_DDB_HANDLE;
+ goto exit;
- case AML_LOCAL_OP:
- case AML_ARG_OP:
+ case ACPI_REFCLASS_LOCAL:
+ case ACPI_REFCLASS_ARG:
if (return_desc) {
status =
acpi_ds_method_data_get_value(obj_desc->
reference.
- opcode,
+ class,
obj_desc->
reference.
- offset,
+ value,
walk_state,
&obj_desc);
if (ACPI_FAILURE(status)) {
status =
acpi_ds_method_data_get_node(obj_desc->
reference.
- opcode,
+ class,
obj_desc->
reference.
- offset,
+ value,
walk_state,
&node);
if (ACPI_FAILURE(status)) {
}
break;
- case AML_DEBUG_OP:
+ case ACPI_REFCLASS_DEBUG:
- /* The Debug Object is of type "debug_object" */
+ /* The Debug Object is of type "DebugObject" */
type = ACPI_TYPE_DEBUG_OBJECT;
goto exit;
default:
- ACPI_REPORT_ERROR(("acpi_ex_resolve_multiple: Unknown Reference subtype %X\n", obj_desc->reference.opcode));
+ ACPI_ERROR((AE_INFO,
+ "Unknown Reference Class %2.2X",
+ obj_desc->reference.class));
return_ACPI_STATUS(AE_AML_INTERNAL);
}
}
projects / linux-2.6-omap-h63xx.git / blobdiff