acpi/acpica/nseval.c

21  * PARAMETERS:  info            - Evaluation info block, contains these fields
42 acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info)
48 	if (!info) {
52 	if (!info->node) {
62 		    acpi_ns_get_node(info->prefix_node, info->relative_pathname,
63 				     ACPI_NS_NO_UPSEARCH, &info->node);
73 	if (acpi_ns_get_type(info->node) == ACPI_TYPE_LOCAL_METHOD_ALIAS) {
74 		info->node =
76 				  info->node->object);
79 	/* Complete the info block initialization */
81 	info->return_object = NULL;
82 	info->node_flags = info->node->flags;
83 	info->obj_desc = acpi_ns_get_attached_object(info->node);
86 			  info->relative_pathname, info->node,
87 			  acpi_ns_get_attached_object(info->node)));
89 	/* Get info if we have a predefined name (_HID, etc.) */
91 	info->predefined =
92 	    acpi_ut_match_predefined_method(info->node->name.ascii);
96 	info->full_pathname = acpi_ns_get_normalized_pathname(info->node, TRUE);
97 	if (!info->full_pathname) {
105 			      &info->full_pathname[1],
106 			      acpi_ut_get_type_name(info->node->type)));
110 	info->param_count = 0;
111 	if (info->parameters) {
112 		while (info->parameters[info->param_count]) {
113 			info->param_count++;
118 		if (info->param_count > ACPI_METHOD_NUM_ARGS) {
119 			ACPI_WARN_PREDEFINED((AE_INFO, info->full_pathname,
122 					      info->param_count,
125 			info->param_count = ACPI_METHOD_NUM_ARGS;
133 	acpi_ns_check_acpi_compliance(info->full_pathname, info->node,
134 				      info->predefined);
140 	acpi_ns_check_argument_count(info->full_pathname, info->node,
141 				     info->param_count, info->predefined);
145 	acpi_ns_check_argument_types(info);
154 	switch (acpi_ns_get_type(info->node)) {
169 			    info->full_pathname,
170 			    acpi_ut_get_type_name(info->node->type)));
182 		if (!info->obj_desc) {
185 				    info->full_pathname));
192 				  info->full_pathname,
193 				  info->obj_desc->method.aml_start + 1,
194 				  info->obj_desc->method.aml_length - 1));
205 		status = acpi_ps_execute_method(info);
234 		info->return_object =
235 		    ACPI_CAST_PTR(union acpi_operand_object, info->node);
240 						   &info->return_object), NULL);
244 			info->return_object = NULL;
249 				  info->return_object,
250 				  acpi_ut_get_object_type_name(info->
261 	(void)acpi_ns_check_return_value(info->node, info, info->param_count,
262 					 status, &info->return_object);
270 		if (info->flags & ACPI_IGNORE_RETURN_VALUE) {
271 			acpi_ut_remove_reference(info->return_object);
272 			info->return_object = NULL;
282 		if (info->return_object) {
283 			acpi_ut_remove_reference(info->return_object);
284 			info->return_object = NULL;
290 			  info->relative_pathname));
297 			      &info->full_pathname[1]));
303 	ACPI_FREE(info->full_pathname);
304 	info->full_pathname = NULL;