#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME ("exresolv")
+/* Local prototypes */
+
+static acpi_status
+acpi_ex_resolve_object_to_value (
+ union acpi_operand_object **stack_ptr,
+ struct acpi_walk_state *walk_state);
+
/*******************************************************************************
*
if (ACPI_FAILURE (status)) {
return_ACPI_STATUS (status);
}
+
+ if (!*stack_ptr) {
+ ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Internal - null pointer\n"));
+ return_ACPI_STATUS (AE_AML_NO_OPERAND);
+ }
}
/*
*
* FUNCTION: acpi_ex_resolve_object_to_value
*
- * PARAMETERS: stack_ptr - Pointer to a stack location that contains a
- * ptr to an internal object.
+ * PARAMETERS: stack_ptr - Pointer to an internal object
* walk_state - Current method state
*
* RETURN: Status
*
- * DESCRIPTION: Retrieve the value from an internal object. The Reference type
+ * DESCRIPTION: Retrieve the value from an internal object. The Reference type
* uses the associated AML opcode to determine the value.
*
******************************************************************************/
-acpi_status
+static acpi_status
acpi_ex_resolve_object_to_value (
union acpi_operand_object **stack_ptr,
struct acpi_walk_state *walk_state)
case AML_NAME_OP:
/*
- * Convert indirect name ptr to a direct name ptr.
+ * 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;
acpi_ut_remove_reference (stack_desc);
- /* Put direct name pointer onto stack and exit */
+ /* Return the namespace node */
(*stack_ptr) = temp_node;
break;
break;
+ case AML_INT_NAMEPATH_OP: /* Reference to a named object */
+
+ /* Get the object pointed to by the namespace node */
+
+ *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",
+ ACPI_REPORT_ERROR ((
+ "During resolve, Unknown Reference opcode %X (%s) in %p\n",
opcode, acpi_ps_get_opcode_name (opcode), stack_desc));
status = AE_AML_INTERNAL;
break;
break;
- /*
- * These cases may never happen here, but just in case..
- */
+ /* 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:
ACPI_FUNCTION_TRACE ("acpi_ex_resolve_multiple");
- /*
- * Operand can be either a namespace node or an operand descriptor
- */
+ /* Operand can be either a namespace node or an operand descriptor */
+
switch (ACPI_GET_DESCRIPTOR_TYPE (obj_desc)) {
case ACPI_DESC_TYPE_OPERAND:
type = obj_desc->common.type;
return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
}
+ /* If type is anything other than a reference, we are done */
- /*
- * If type is anything other than a reference, we are done
- */
if (type != ACPI_TYPE_LOCAL_REFERENCE) {
goto exit;
}
/* 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_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);
}
/* 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_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);
}
if (return_desc) {
status = acpi_ds_method_data_get_value (obj_desc->reference.opcode,
- obj_desc->reference.offset, walk_state, &obj_desc);
+ obj_desc->reference.offset, walk_state, &obj_desc);
if (ACPI_FAILURE (status)) {
return_ACPI_STATUS (status);
}
default:
- ACPI_REPORT_ERROR (("acpi_ex_resolve_multiple: Unknown Reference subtype %X\n",
+ ACPI_REPORT_ERROR ((
+ "acpi_ex_resolve_multiple: Unknown Reference subtype %X\n",
obj_desc->reference.opcode));
return_ACPI_STATUS (AE_AML_INTERNAL);
}