1 /******************************************************************************
3 * Module Name: dswload - Dispatcher namespace load callbacks
5 *****************************************************************************/
8 * Copyright (C) 2000 - 2005, R. Byron Moore
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * substantially similar to the "NO WARRANTY" disclaimer below
19 * ("Disclaimer") and any redistribution must be conditioned upon
20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
44 #include <acpi/acpi.h>
45 #include <acpi/acparser.h>
46 #include <acpi/amlcode.h>
47 #include <acpi/acdispat.h>
48 #include <acpi/acinterp.h>
49 #include <acpi/acnamesp.h>
50 #include <acpi/acevents.h>
52 #ifdef ACPI_ASL_COMPILER
53 #include <acpi/acdisasm.h>
56 #define _COMPONENT ACPI_DISPATCHER
57 ACPI_MODULE_NAME("dswload")
59 /*******************************************************************************
61 * FUNCTION: acpi_ds_init_callbacks
63 * PARAMETERS: walk_state - Current state of the parse tree walk
64 * pass_number - 1, 2, or 3
68 * DESCRIPTION: Init walk state callbacks
70 ******************************************************************************/
72 acpi_ds_init_callbacks(struct acpi_walk_state *walk_state, u32 pass_number)
75 switch (pass_number) {
77 walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 |
78 ACPI_PARSE_DELETE_TREE;
79 walk_state->descending_callback = acpi_ds_load1_begin_op;
80 walk_state->ascending_callback = acpi_ds_load1_end_op;
84 walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 |
85 ACPI_PARSE_DELETE_TREE;
86 walk_state->descending_callback = acpi_ds_load2_begin_op;
87 walk_state->ascending_callback = acpi_ds_load2_end_op;
91 #ifndef ACPI_NO_METHOD_EXECUTION
92 walk_state->parse_flags |= ACPI_PARSE_EXECUTE |
93 ACPI_PARSE_DELETE_TREE;
94 walk_state->descending_callback = acpi_ds_exec_begin_op;
95 walk_state->ascending_callback = acpi_ds_exec_end_op;
100 return (AE_BAD_PARAMETER);
106 /*******************************************************************************
108 * FUNCTION: acpi_ds_load1_begin_op
110 * PARAMETERS: walk_state - Current state of the parse tree walk
111 * out_op - Where to return op if a new one is created
115 * DESCRIPTION: Descending callback used during the loading of ACPI tables.
117 ******************************************************************************/
120 acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state,
121 union acpi_parse_object ** out_op)
123 union acpi_parse_object *op;
124 struct acpi_namespace_node *node;
126 acpi_object_type object_type;
130 ACPI_FUNCTION_TRACE("ds_load1_begin_op");
133 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op,
136 /* We are only interested in opcodes that have an associated name */
139 if (!(walk_state->op_info->flags & AML_NAMED)) {
141 return_ACPI_STATUS(AE_OK);
144 /* Check if this object has already been installed in the namespace */
146 if (op->common.node) {
148 return_ACPI_STATUS(AE_OK);
152 path = acpi_ps_get_next_namestring(&walk_state->parser_state);
154 /* Map the raw opcode into an internal object type */
156 object_type = walk_state->op_info->object_type;
158 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
159 "State=%p Op=%p [%s]\n", walk_state, op,
160 acpi_ut_get_type_name(object_type)));
162 switch (walk_state->opcode) {
166 * The target name of the Scope() operator must exist at this point so
167 * that we can actually open the scope to enter new names underneath it.
168 * Allow search-to-root for single namesegs.
171 acpi_ns_lookup(walk_state->scope_info, path, object_type,
172 ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
173 walk_state, &(node));
174 #ifdef ACPI_ASL_COMPILER
175 if (status == AE_NOT_FOUND) {
178 * Target of Scope() not found. Generate an External for it, and
179 * insert the name into the namespace.
181 acpi_dm_add_to_external_list(path);
183 acpi_ns_lookup(walk_state->scope_info, path,
184 object_type, ACPI_IMODE_LOAD_PASS1,
185 ACPI_NS_SEARCH_PARENT, walk_state,
189 if (ACPI_FAILURE(status)) {
190 ACPI_REPORT_NSERROR(path, status);
191 return_ACPI_STATUS(status);
195 * Check to make sure that the target is
196 * one of the opcodes that actually opens a scope
198 switch (node->type) {
199 case ACPI_TYPE_LOCAL_SCOPE: /* Scope */
200 case ACPI_TYPE_DEVICE:
201 case ACPI_TYPE_POWER:
202 case ACPI_TYPE_PROCESSOR:
203 case ACPI_TYPE_THERMAL:
205 /* These are acceptable types */
208 case ACPI_TYPE_INTEGER:
209 case ACPI_TYPE_STRING:
210 case ACPI_TYPE_BUFFER:
213 * These types we will allow, but we will change the type. This
214 * enables some existing code of the form:
217 * Scope (DEB) { ... }
219 * Note: silently change the type here. On the second pass, we will report
223 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
224 "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)\n",
226 acpi_ut_get_type_name(node->type)));
228 node->type = ACPI_TYPE_ANY;
229 walk_state->scope_info->common.value = ACPI_TYPE_ANY;
234 /* All other types are an error */
236 ACPI_REPORT_ERROR(("Invalid type (%s) for target of Scope operator [%4.4s] (Cannot override)\n", acpi_ut_get_type_name(node->type), path));
238 return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
245 * For all other named opcodes, we will enter the name into
248 * Setup the search flags.
249 * Since we are entering a name into the namespace, we do not want to
250 * enable the search-to-root upsearch.
252 * There are only two conditions where it is acceptable that the name
254 * 1) the Scope() operator can reopen a scoping object that was
255 * previously defined (Scope, Method, Device, etc.)
256 * 2) Whenever we are parsing a deferred opcode (op_region, Buffer,
257 * buffer_field, or Package), the name of the object is already
261 if (walk_state->deferred_node) {
262 /* This name is already in the namespace, get the node */
264 node = walk_state->deferred_node;
270 * If we are executing a method, do not create any namespace objects
271 * during the load phase, only during execution.
273 if (walk_state->method_node) {
279 flags = ACPI_NS_NO_UPSEARCH;
280 if ((walk_state->opcode != AML_SCOPE_OP) &&
281 (!(walk_state->parse_flags & ACPI_PARSE_DEFERRED_OP))) {
282 flags |= ACPI_NS_ERROR_IF_FOUND;
283 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
284 "[%s] Cannot already exist\n",
285 acpi_ut_get_type_name(object_type)));
287 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
288 "[%s] Both Find or Create allowed\n",
289 acpi_ut_get_type_name(object_type)));
293 * Enter the named type into the internal namespace. We enter the name
294 * as we go downward in the parse tree. Any necessary subobjects that
295 * involve arguments to the opcode must be created as we go back up the
299 acpi_ns_lookup(walk_state->scope_info, path, object_type,
300 ACPI_IMODE_LOAD_PASS1, flags, walk_state,
302 if (ACPI_FAILURE(status)) {
303 ACPI_REPORT_NSERROR(path, status);
304 return_ACPI_STATUS(status);
312 /* Create a new op */
314 op = acpi_ps_alloc_op(walk_state->opcode);
316 return_ACPI_STATUS(AE_NO_MEMORY);
320 /* Initialize the op */
322 #if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY))
323 op->named.path = ACPI_CAST_PTR(u8, path);
328 * Put the Node in the "op" object that the parser uses, so we
329 * can get it again quickly when this scope is closed
331 op->common.node = node;
332 op->named.name = node->name.integer;
335 acpi_ps_append_arg(acpi_ps_get_parent_scope(&walk_state->parser_state),
338 return_ACPI_STATUS(status);
341 /*******************************************************************************
343 * FUNCTION: acpi_ds_load1_end_op
345 * PARAMETERS: walk_state - Current state of the parse tree walk
349 * DESCRIPTION: Ascending callback used during the loading of the namespace,
350 * both control methods and everything else.
352 ******************************************************************************/
354 acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
356 union acpi_parse_object *op;
357 acpi_object_type object_type;
358 acpi_status status = AE_OK;
360 ACPI_FUNCTION_TRACE("ds_load1_end_op");
363 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op,
366 /* We are only interested in opcodes that have an associated name */
368 if (!(walk_state->op_info->flags & (AML_NAMED | AML_FIELD))) {
369 return_ACPI_STATUS(AE_OK);
372 /* Get the object type to determine if we should pop the scope */
374 object_type = walk_state->op_info->object_type;
376 #ifndef ACPI_NO_METHOD_EXECUTION
377 if (walk_state->op_info->flags & AML_FIELD) {
379 * If we are executing a method, do not create any namespace objects
380 * during the load phase, only during execution.
382 if (!walk_state->method_node) {
383 if (walk_state->opcode == AML_FIELD_OP ||
384 walk_state->opcode == AML_BANK_FIELD_OP ||
385 walk_state->opcode == AML_INDEX_FIELD_OP) {
387 acpi_ds_init_field_objects(op, walk_state);
390 return_ACPI_STATUS(status);
394 * If we are executing a method, do not create any namespace objects
395 * during the load phase, only during execution.
397 if (!walk_state->method_node) {
398 if (op->common.aml_opcode == AML_REGION_OP) {
400 acpi_ex_create_region(op->named.data,
402 (acpi_adr_space_type)
403 ((op->common.value.arg)->
404 common.value.integer),
406 if (ACPI_FAILURE(status)) {
407 return_ACPI_STATUS(status);
413 if (op->common.aml_opcode == AML_NAME_OP) {
414 /* For Name opcode, get the object type from the argument */
416 if (op->common.value.arg) {
417 object_type = (acpi_ps_get_opcode_info((op->common.
423 /* Set node type if we have a namespace node */
425 if (op->common.node) {
426 op->common.node->type = (u8) object_type;
431 if (op->common.aml_opcode == AML_METHOD_OP) {
433 * method_op pkg_length name_string method_flags term_list
435 * Note: We must create the method node/object pair as soon as we
436 * see the method declaration. This allows later pass1 parsing
437 * of invocations of the method (need to know the number of
440 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
441 "LOADING-Method: State=%p Op=%p named_obj=%p\n",
442 walk_state, op, op->named.node));
444 if (!acpi_ns_get_attached_object(op->named.node)) {
445 walk_state->operands[0] = (void *)op->named.node;
446 walk_state->num_operands = 1;
449 acpi_ds_create_operands(walk_state,
450 op->common.value.arg);
451 if (ACPI_SUCCESS(status)) {
452 status = acpi_ex_create_method(op->named.data,
456 walk_state->operands[0] = NULL;
457 walk_state->num_operands = 0;
459 if (ACPI_FAILURE(status)) {
460 return_ACPI_STATUS(status);
465 /* Pop the scope stack */
467 if (acpi_ns_opens_scope(object_type)) {
468 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
469 "(%s): Popping scope for Op %p\n",
470 acpi_ut_get_type_name(object_type), op));
472 status = acpi_ds_scope_stack_pop(walk_state);
475 return_ACPI_STATUS(status);
478 /*******************************************************************************
480 * FUNCTION: acpi_ds_load2_begin_op
482 * PARAMETERS: walk_state - Current state of the parse tree walk
483 * out_op - Wher to return op if a new one is created
487 * DESCRIPTION: Descending callback used during the loading of ACPI tables.
489 ******************************************************************************/
492 acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
493 union acpi_parse_object **out_op)
495 union acpi_parse_object *op;
496 struct acpi_namespace_node *node;
498 acpi_object_type object_type;
501 ACPI_FUNCTION_TRACE("ds_load2_begin_op");
504 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op,
508 if ((walk_state->control_state) &&
509 (walk_state->control_state->common.state ==
510 ACPI_CONTROL_CONDITIONAL_EXECUTING)) {
511 /* We are executing a while loop outside of a method */
513 status = acpi_ds_exec_begin_op(walk_state, out_op);
514 return_ACPI_STATUS(status);
517 /* We only care about Namespace opcodes here */
519 if ((!(walk_state->op_info->flags & AML_NSOPCODE) &&
520 (walk_state->opcode != AML_INT_NAMEPATH_OP)) ||
521 (!(walk_state->op_info->flags & AML_NAMED))) {
522 #ifdef ACPI_ENABLE_MODULE_LEVEL_CODE
523 if ((walk_state->op_info->class == AML_CLASS_EXECUTE) ||
524 (walk_state->op_info->class == AML_CLASS_CONTROL)) {
526 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
527 "Begin/EXEC: %s (fl %8.8X)\n",
528 walk_state->op_info->name,
529 walk_state->op_info->flags));
531 /* Executing a type1 or type2 opcode outside of a method */
534 acpi_ds_exec_begin_op(walk_state, out_op);
535 return_ACPI_STATUS(status);
538 return_ACPI_STATUS(AE_OK);
541 /* Get the name we are going to enter or lookup in the namespace */
543 if (walk_state->opcode == AML_INT_NAMEPATH_OP) {
544 /* For Namepath op, get the path string */
546 buffer_ptr = op->common.value.string;
548 /* No name, just exit */
550 return_ACPI_STATUS(AE_OK);
553 /* Get name from the op */
555 buffer_ptr = (char *)&op->named.name;
558 /* Get the namestring from the raw AML */
561 acpi_ps_get_next_namestring(&walk_state->parser_state);
564 /* Map the opcode into an internal object type */
566 object_type = walk_state->op_info->object_type;
568 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
569 "State=%p Op=%p Type=%X\n", walk_state, op,
572 switch (walk_state->opcode) {
574 case AML_BANK_FIELD_OP:
575 case AML_INDEX_FIELD_OP:
581 case AML_INT_NAMEPATH_OP:
584 * The name_path is an object reference to an existing object.
585 * Don't enter the name into the namespace, but look it up
589 acpi_ns_lookup(walk_state->scope_info, buffer_ptr,
590 object_type, ACPI_IMODE_EXECUTE,
591 ACPI_NS_SEARCH_PARENT, walk_state, &(node));
597 * The Path is an object reference to an existing object.
598 * Don't enter the name into the namespace, but look it up
602 acpi_ns_lookup(walk_state->scope_info, buffer_ptr,
603 object_type, ACPI_IMODE_EXECUTE,
604 ACPI_NS_SEARCH_PARENT, walk_state, &(node));
605 if (ACPI_FAILURE(status)) {
606 #ifdef ACPI_ASL_COMPILER
607 if (status == AE_NOT_FOUND) {
610 ACPI_REPORT_NSERROR(buffer_ptr, status);
613 ACPI_REPORT_NSERROR(buffer_ptr, status);
615 return_ACPI_STATUS(status);
618 * We must check to make sure that the target is
619 * one of the opcodes that actually opens a scope
621 switch (node->type) {
622 case ACPI_TYPE_LOCAL_SCOPE: /* Scope */
623 case ACPI_TYPE_DEVICE:
624 case ACPI_TYPE_POWER:
625 case ACPI_TYPE_PROCESSOR:
626 case ACPI_TYPE_THERMAL:
628 /* These are acceptable types */
631 case ACPI_TYPE_INTEGER:
632 case ACPI_TYPE_STRING:
633 case ACPI_TYPE_BUFFER:
636 * These types we will allow, but we will change the type. This
637 * enables some existing code of the form:
640 * Scope (DEB) { ... }
643 ACPI_REPORT_WARNING(("Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)\n", buffer_ptr, acpi_ut_get_type_name(node->type)));
645 node->type = ACPI_TYPE_ANY;
646 walk_state->scope_info->common.value = ACPI_TYPE_ANY;
651 /* All other types are an error */
653 ACPI_REPORT_ERROR(("Invalid type (%s) for target of Scope operator [%4.4s]\n", acpi_ut_get_type_name(node->type), buffer_ptr));
655 return (AE_AML_OPERAND_TYPE);
661 /* All other opcodes */
663 if (op && op->common.node) {
664 /* This op/node was previously entered into the namespace */
666 node = op->common.node;
668 if (acpi_ns_opens_scope(object_type)) {
670 acpi_ds_scope_stack_push(node, object_type,
672 if (ACPI_FAILURE(status)) {
673 return_ACPI_STATUS(status);
677 return_ACPI_STATUS(AE_OK);
681 * Enter the named type into the internal namespace. We enter the name
682 * as we go downward in the parse tree. Any necessary subobjects that
683 * involve arguments to the opcode must be created as we go back up the
686 * Note: Name may already exist if we are executing a deferred opcode.
688 if (walk_state->deferred_node) {
689 /* This name is already in the namespace, get the node */
691 node = walk_state->deferred_node;
696 /* Add new entry into namespace */
699 acpi_ns_lookup(walk_state->scope_info, buffer_ptr,
700 object_type, ACPI_IMODE_LOAD_PASS2,
701 ACPI_NS_NO_UPSEARCH, walk_state, &(node));
705 if (ACPI_FAILURE(status)) {
706 ACPI_REPORT_NSERROR(buffer_ptr, status);
707 return_ACPI_STATUS(status);
711 /* Create a new op */
713 op = acpi_ps_alloc_op(walk_state->opcode);
715 return_ACPI_STATUS(AE_NO_MEMORY);
718 /* Initialize the new op */
721 op->named.name = node->name.integer;
727 * Put the Node in the "op" object that the parser uses, so we
728 * can get it again quickly when this scope is closed
730 op->common.node = node;
732 return_ACPI_STATUS(status);
735 /*******************************************************************************
737 * FUNCTION: acpi_ds_load2_end_op
739 * PARAMETERS: walk_state - Current state of the parse tree walk
743 * DESCRIPTION: Ascending callback used during the loading of the namespace,
744 * both control methods and everything else.
746 ******************************************************************************/
748 acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
750 union acpi_parse_object *op;
751 acpi_status status = AE_OK;
752 acpi_object_type object_type;
753 struct acpi_namespace_node *node;
754 union acpi_parse_object *arg;
755 struct acpi_namespace_node *new_node;
756 #ifndef ACPI_NO_METHOD_EXECUTION
760 ACPI_FUNCTION_TRACE("ds_load2_end_op");
763 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n",
764 walk_state->op_info->name, op, walk_state));
766 /* Check if opcode had an associated namespace object */
768 if (!(walk_state->op_info->flags & AML_NSOBJECT)) {
769 #ifndef ACPI_NO_METHOD_EXECUTION
770 #ifdef ACPI_ENABLE_MODULE_LEVEL_CODE
771 /* No namespace object. Executable opcode? */
773 if ((walk_state->op_info->class == AML_CLASS_EXECUTE) ||
774 (walk_state->op_info->class == AML_CLASS_CONTROL)) {
775 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
776 "End/EXEC: %s (fl %8.8X)\n",
777 walk_state->op_info->name,
778 walk_state->op_info->flags));
780 /* Executing a type1 or type2 opcode outside of a method */
782 status = acpi_ds_exec_end_op(walk_state);
783 return_ACPI_STATUS(status);
787 return_ACPI_STATUS(AE_OK);
790 if (op->common.aml_opcode == AML_SCOPE_OP) {
791 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
792 "Ending scope Op=%p State=%p\n", op,
796 object_type = walk_state->op_info->object_type;
799 * Get the Node/name from the earlier lookup
800 * (It was saved in the *op structure)
802 node = op->common.node;
805 * Put the Node on the object stack (Contains the ACPI Name of
808 walk_state->operands[0] = (void *)node;
809 walk_state->num_operands = 1;
811 /* Pop the scope stack */
813 if (acpi_ns_opens_scope(object_type) &&
814 (op->common.aml_opcode != AML_INT_METHODCALL_OP)) {
815 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
816 "(%s) Popping scope for Op %p\n",
817 acpi_ut_get_type_name(object_type), op));
819 status = acpi_ds_scope_stack_pop(walk_state);
820 if (ACPI_FAILURE(status)) {
826 * Named operations are as follows:
831 * AML_CREATEBYTEFIELD
832 * AML_CREATEDWORDFIELD
834 * AML_CREATEQWORDFIELD
835 * AML_CREATEWORDFIELD
853 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
854 "Create-Load [%s] State=%p Op=%p named_obj=%p\n",
855 acpi_ps_get_opcode_name(op->common.aml_opcode),
856 walk_state, op, node));
858 /* Decode the opcode */
860 arg = op->common.value.arg;
862 switch (walk_state->op_info->type) {
863 #ifndef ACPI_NO_METHOD_EXECUTION
865 case AML_TYPE_CREATE_FIELD:
868 * Create the field object, but the field buffer and index must
869 * be evaluated later during the execution phase
871 status = acpi_ds_create_buffer_field(op, walk_state);
874 case AML_TYPE_NAMED_FIELD:
877 * If we are executing a method, initialize the field
879 if (walk_state->method_node) {
880 status = acpi_ds_init_field_objects(op, walk_state);
883 switch (op->common.aml_opcode) {
884 case AML_INDEX_FIELD_OP:
887 acpi_ds_create_index_field(op,
889 common.node, walk_state);
892 case AML_BANK_FIELD_OP:
895 acpi_ds_create_bank_field(op, arg->common.node,
902 acpi_ds_create_field(op, arg->common.node,
907 /* All NAMED_FIELD opcodes must be handled above */
912 case AML_TYPE_NAMED_SIMPLE:
914 status = acpi_ds_create_operands(walk_state, arg);
915 if (ACPI_FAILURE(status)) {
919 switch (op->common.aml_opcode) {
920 case AML_PROCESSOR_OP:
922 status = acpi_ex_create_processor(walk_state);
925 case AML_POWER_RES_OP:
927 status = acpi_ex_create_power_resource(walk_state);
932 status = acpi_ex_create_mutex(walk_state);
937 status = acpi_ex_create_event(walk_state);
940 case AML_DATA_REGION_OP:
942 status = acpi_ex_create_table_region(walk_state);
947 status = acpi_ex_create_alias(walk_state);
957 /* Delete operands */
959 for (i = 1; i < walk_state->num_operands; i++) {
960 acpi_ut_remove_reference(walk_state->operands[i]);
961 walk_state->operands[i] = NULL;
965 #endif /* ACPI_NO_METHOD_EXECUTION */
967 case AML_TYPE_NAMED_COMPLEX:
969 switch (op->common.aml_opcode) {
970 #ifndef ACPI_NO_METHOD_EXECUTION
974 * If we are executing a method, initialize the region
976 if (walk_state->method_node) {
978 acpi_ex_create_region(op->named.data,
980 (acpi_adr_space_type)
985 if (ACPI_FAILURE(status)) {
991 * The op_region is not fully parsed at this time. Only valid
992 * argument is the space_id. (We must save the address of the
993 * AML of the address and length operands)
996 * If we have a valid region, initialize it
997 * Namespace is NOT locked at this point.
1000 acpi_ev_initialize_region
1001 (acpi_ns_get_attached_object(node), FALSE);
1002 if (ACPI_FAILURE(status)) {
1004 * If AE_NOT_EXIST is returned, it is not fatal
1005 * because many regions get created before a handler
1006 * is installed for said region.
1008 if (AE_NOT_EXIST == status) {
1016 status = acpi_ds_create_node(walk_state, node, op);
1018 #endif /* ACPI_NO_METHOD_EXECUTION */
1021 /* All NAMED_COMPLEX opcodes must be handled above */
1022 /* Note: Method objects were already created in Pass 1 */
1027 case AML_CLASS_INTERNAL:
1029 /* case AML_INT_NAMEPATH_OP: */
1032 case AML_CLASS_METHOD_CALL:
1034 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
1035 "RESOLVING-method_call: State=%p Op=%p named_obj=%p\n",
1036 walk_state, op, node));
1039 * Lookup the method name and save the Node
1042 acpi_ns_lookup(walk_state->scope_info,
1043 arg->common.value.string, ACPI_TYPE_ANY,
1044 ACPI_IMODE_LOAD_PASS2,
1045 ACPI_NS_SEARCH_PARENT |
1046 ACPI_NS_DONT_OPEN_SCOPE, walk_state,
1048 if (ACPI_SUCCESS(status)) {
1051 * Make sure that what we found is indeed a method
1052 * We didn't search for a method on purpose, to see if the name
1055 if (new_node->type != ACPI_TYPE_METHOD) {
1056 status = AE_AML_OPERAND_TYPE;
1059 /* We could put the returned object (Node) on the object stack for
1060 * later, but for now, we will put it in the "op" object that the
1061 * parser uses, so we can get it again at the end of this scope
1063 op->common.node = new_node;
1065 ACPI_REPORT_NSERROR(arg->common.value.string, status);
1075 /* Remove the Node pushed at the very beginning */
1077 walk_state->operands[0] = NULL;
1078 walk_state->num_operands = 0;
1079 return_ACPI_STATUS(status);