-
-#ifdef ACPI_INIT_PARSE_METHODS
- /*
- * Note 11/2005: Removed this code to parse all methods during table
- * load because it causes problems if there are any errors during the
- * parse. Also, it seems like overkill and we probably don't want to
- * abort a table load because of an issue with a single method.
- */
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_parse_method
- *
- * PARAMETERS: Node - Method node
- *
- * RETURN: Status
- *
- * DESCRIPTION: Parse the AML that is associated with the method.
- *
- * MUTEX: Assumes parser is locked
- *
- ******************************************************************************/
-
-acpi_status acpi_ds_parse_method(struct acpi_namespace_node *node)
-{
- acpi_status status;
- union acpi_operand_object *obj_desc;
- union acpi_parse_object *op;
- struct acpi_walk_state *walk_state;
-
- ACPI_FUNCTION_TRACE_PTR("ds_parse_method", node);
-
- /* Parameter Validation */
-
- if (!node) {
- return_ACPI_STATUS(AE_NULL_ENTRY);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
- "**** Parsing [%4.4s] **** named_obj=%p\n",
- acpi_ut_get_node_name(node), node));
-
- /* Extract the method object from the method Node */
-
- obj_desc = acpi_ns_get_attached_object(node);
- if (!obj_desc) {
- return_ACPI_STATUS(AE_NULL_OBJECT);
- }
-
- /* Create a mutex for the method if there is a concurrency limit */
-
- if ((obj_desc->method.concurrency != ACPI_INFINITE_CONCURRENCY) &&
- (!obj_desc->method.semaphore)) {
- status = acpi_os_create_semaphore(obj_desc->method.concurrency,
- obj_desc->method.concurrency,
- &obj_desc->method.semaphore);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- /*
- * Allocate a new parser op to be the root of the parsed
- * method tree
- */
- op = acpi_ps_alloc_op(AML_METHOD_OP);
- if (!op) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Init new op with the method name and pointer back to the Node */
-
- acpi_ps_set_name(op, node->name.integer);
- op->common.node = node;
-
- /*
- * Get a new owner_id for objects created by this method. Namespace
- * objects (such as Operation Regions) can be created during the
- * first pass parse.
- */
- status = acpi_ut_allocate_owner_id(&obj_desc->method.owner_id);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- /* Create and initialize a new walk state */
-
- walk_state =
- acpi_ds_create_walk_state(obj_desc->method.owner_id, NULL, NULL,
- NULL);
- if (!walk_state) {
- status = AE_NO_MEMORY;
- goto cleanup2;
- }
-
- status = acpi_ds_init_aml_walk(walk_state, op, node,
- obj_desc->method.aml_start,
- obj_desc->method.aml_length, NULL, 1);
- if (ACPI_FAILURE(status)) {
- acpi_ds_delete_walk_state(walk_state);
- goto cleanup2;
- }
-
- /*
- * Parse the method, first pass
- *
- * The first pass load is where newly declared named objects are added into
- * the namespace. Actual evaluation of the named objects (what would be
- * called a "second pass") happens during the actual execution of the
- * method so that operands to the named objects can take on dynamic
- * run-time values.
- */
- status = acpi_ps_parse_aml(walk_state);
- if (ACPI_FAILURE(status)) {
- goto cleanup2;
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
- "**** [%4.4s] Parsed **** named_obj=%p Op=%p\n",
- acpi_ut_get_node_name(node), node, op));
-
- /*
- * Delete the parse tree. We simply re-parse the method for every
- * execution since there isn't much overhead (compared to keeping lots
- * of parse trees around)
- */
- acpi_ns_delete_namespace_subtree(node);
- acpi_ns_delete_namespace_by_owner(obj_desc->method.owner_id);
-
- cleanup2:
- acpi_ut_release_owner_id(&obj_desc->method.owner_id);
-
- cleanup:
- acpi_ps_delete_parse_tree(op);
- return_ACPI_STATUS(status);
-}
-#endif