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_NAME("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
)) {
144 /* Check if this object has already been installed in the namespace */
146 if (op
->common
.node
) {
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
);
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 (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
260 if (walk_state
->deferred_node
) {
261 /* This name is already in the namespace, get the node */
263 node
= walk_state
->deferred_node
;
268 flags
= ACPI_NS_NO_UPSEARCH
;
269 if ((walk_state
->opcode
!= AML_SCOPE_OP
) &&
270 (!(walk_state
->parse_flags
& ACPI_PARSE_DEFERRED_OP
))) {
271 flags
|= ACPI_NS_ERROR_IF_FOUND
;
272 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
273 "[%s] Cannot already exist\n",
274 acpi_ut_get_type_name(object_type
)));
276 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
277 "[%s] Both Find or Create allowed\n",
278 acpi_ut_get_type_name(object_type
)));
282 * Enter the named type into the internal namespace. We enter the name
283 * as we go downward in the parse tree. Any necessary subobjects that
284 * involve arguments to the opcode must be created as we go back up the
288 acpi_ns_lookup(walk_state
->scope_info
, path
, object_type
,
289 ACPI_IMODE_LOAD_PASS1
, flags
, walk_state
,
291 if (ACPI_FAILURE(status
)) {
292 ACPI_REPORT_NSERROR(path
, status
);
301 /* Create a new op */
303 op
= acpi_ps_alloc_op(walk_state
->opcode
);
305 return (AE_NO_MEMORY
);
311 op
->named
.name
= node
->name
.integer
;
313 #if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY))
314 op
->named
.path
= (u8
*) path
;
318 * Put the Node in the "op" object that the parser uses, so we
319 * can get it again quickly when this scope is closed
321 op
->common
.node
= node
;
322 acpi_ps_append_arg(acpi_ps_get_parent_scope(&walk_state
->parser_state
),
329 /*******************************************************************************
331 * FUNCTION: acpi_ds_load1_end_op
333 * PARAMETERS: walk_state - Current state of the parse tree walk
337 * DESCRIPTION: Ascending callback used during the loading of the namespace,
338 * both control methods and everything else.
340 ******************************************************************************/
342 acpi_status
acpi_ds_load1_end_op(struct acpi_walk_state
* walk_state
)
344 union acpi_parse_object
*op
;
345 acpi_object_type object_type
;
346 acpi_status status
= AE_OK
;
348 ACPI_FUNCTION_NAME("ds_load1_end_op");
351 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
, "Op=%p State=%p\n", op
,
354 /* We are only interested in opcodes that have an associated name */
356 if (!(walk_state
->op_info
->flags
& (AML_NAMED
| AML_FIELD
))) {
360 /* Get the object type to determine if we should pop the scope */
362 object_type
= walk_state
->op_info
->object_type
;
364 #ifndef ACPI_NO_METHOD_EXECUTION
365 if (walk_state
->op_info
->flags
& AML_FIELD
) {
366 if (walk_state
->opcode
== AML_FIELD_OP
||
367 walk_state
->opcode
== AML_BANK_FIELD_OP
||
368 walk_state
->opcode
== AML_INDEX_FIELD_OP
) {
369 status
= acpi_ds_init_field_objects(op
, walk_state
);
374 if (op
->common
.aml_opcode
== AML_REGION_OP
) {
375 status
= acpi_ex_create_region(op
->named
.data
, op
->named
.length
,
376 (acpi_adr_space_type
)
377 ((op
->common
.value
.arg
)->common
.
378 value
.integer
), walk_state
);
379 if (ACPI_FAILURE(status
)) {
385 if (op
->common
.aml_opcode
== AML_NAME_OP
) {
386 /* For Name opcode, get the object type from the argument */
388 if (op
->common
.value
.arg
) {
389 object_type
= (acpi_ps_get_opcode_info((op
->common
.
394 op
->common
.node
->type
= (u8
) object_type
;
398 if (op
->common
.aml_opcode
== AML_METHOD_OP
) {
400 * method_op pkg_length name_string method_flags term_list
402 * Note: We must create the method node/object pair as soon as we
403 * see the method declaration. This allows later pass1 parsing
404 * of invocations of the method (need to know the number of
407 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
408 "LOADING-Method: State=%p Op=%p named_obj=%p\n",
409 walk_state
, op
, op
->named
.node
));
411 if (!acpi_ns_get_attached_object(op
->named
.node
)) {
412 walk_state
->operands
[0] = (void *)op
->named
.node
;
413 walk_state
->num_operands
= 1;
416 acpi_ds_create_operands(walk_state
,
417 op
->common
.value
.arg
);
418 if (ACPI_SUCCESS(status
)) {
419 status
= acpi_ex_create_method(op
->named
.data
,
423 walk_state
->operands
[0] = NULL
;
424 walk_state
->num_operands
= 0;
426 if (ACPI_FAILURE(status
)) {
432 /* Pop the scope stack */
434 if (acpi_ns_opens_scope(object_type
)) {
435 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
436 "(%s): Popping scope for Op %p\n",
437 acpi_ut_get_type_name(object_type
), op
));
439 status
= acpi_ds_scope_stack_pop(walk_state
);
445 /*******************************************************************************
447 * FUNCTION: acpi_ds_load2_begin_op
449 * PARAMETERS: walk_state - Current state of the parse tree walk
450 * out_op - Wher to return op if a new one is created
454 * DESCRIPTION: Descending callback used during the loading of ACPI tables.
456 ******************************************************************************/
459 acpi_ds_load2_begin_op(struct acpi_walk_state
* walk_state
,
460 union acpi_parse_object
** out_op
)
462 union acpi_parse_object
*op
;
463 struct acpi_namespace_node
*node
;
465 acpi_object_type object_type
;
468 ACPI_FUNCTION_TRACE("ds_load2_begin_op");
471 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
, "Op=%p State=%p\n", op
,
475 if ((walk_state
->control_state
) &&
476 (walk_state
->control_state
->common
.state
==
477 ACPI_CONTROL_CONDITIONAL_EXECUTING
)) {
478 /* We are executing a while loop outside of a method */
480 status
= acpi_ds_exec_begin_op(walk_state
, out_op
);
481 return_ACPI_STATUS(status
);
484 /* We only care about Namespace opcodes here */
486 if ((!(walk_state
->op_info
->flags
& AML_NSOPCODE
) &&
487 (walk_state
->opcode
!= AML_INT_NAMEPATH_OP
)) ||
488 (!(walk_state
->op_info
->flags
& AML_NAMED
))) {
489 if ((walk_state
->op_info
->class == AML_CLASS_EXECUTE
) ||
490 (walk_state
->op_info
->class == AML_CLASS_CONTROL
)) {
491 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
492 "Begin/EXEC: %s (fl %8.8X)\n",
493 walk_state
->op_info
->name
,
494 walk_state
->op_info
->flags
));
496 /* Executing a type1 or type2 opcode outside of a method */
499 acpi_ds_exec_begin_op(walk_state
, out_op
);
500 return_ACPI_STATUS(status
);
502 return_ACPI_STATUS(AE_OK
);
505 /* Get the name we are going to enter or lookup in the namespace */
507 if (walk_state
->opcode
== AML_INT_NAMEPATH_OP
) {
508 /* For Namepath op, get the path string */
510 buffer_ptr
= op
->common
.value
.string
;
512 /* No name, just exit */
514 return_ACPI_STATUS(AE_OK
);
517 /* Get name from the op */
519 buffer_ptr
= (char *)&op
->named
.name
;
522 /* Get the namestring from the raw AML */
525 acpi_ps_get_next_namestring(&walk_state
->parser_state
);
528 /* Map the opcode into an internal object type */
530 object_type
= walk_state
->op_info
->object_type
;
532 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
533 "State=%p Op=%p Type=%X\n", walk_state
, op
,
536 switch (walk_state
->opcode
) {
538 case AML_BANK_FIELD_OP
:
539 case AML_INDEX_FIELD_OP
:
545 case AML_INT_NAMEPATH_OP
:
548 * The name_path is an object reference to an existing object.
549 * Don't enter the name into the namespace, but look it up
553 acpi_ns_lookup(walk_state
->scope_info
, buffer_ptr
,
554 object_type
, ACPI_IMODE_EXECUTE
,
555 ACPI_NS_SEARCH_PARENT
, walk_state
, &(node
));
561 * The Path is an object reference to an existing object.
562 * Don't enter the name into the namespace, but look it up
566 acpi_ns_lookup(walk_state
->scope_info
, buffer_ptr
,
567 object_type
, ACPI_IMODE_EXECUTE
,
568 ACPI_NS_SEARCH_PARENT
, walk_state
, &(node
));
569 if (ACPI_FAILURE(status
)) {
570 #ifdef ACPI_ASL_COMPILER
571 if (status
== AE_NOT_FOUND
) {
574 ACPI_REPORT_NSERROR(buffer_ptr
, status
);
577 ACPI_REPORT_NSERROR(buffer_ptr
, status
);
579 return_ACPI_STATUS(status
);
582 * We must check to make sure that the target is
583 * one of the opcodes that actually opens a scope
585 switch (node
->type
) {
586 case ACPI_TYPE_LOCAL_SCOPE
: /* Scope */
587 case ACPI_TYPE_DEVICE
:
588 case ACPI_TYPE_POWER
:
589 case ACPI_TYPE_PROCESSOR
:
590 case ACPI_TYPE_THERMAL
:
592 /* These are acceptable types */
595 case ACPI_TYPE_INTEGER
:
596 case ACPI_TYPE_STRING
:
597 case ACPI_TYPE_BUFFER
:
600 * These types we will allow, but we will change the type. This
601 * enables some existing code of the form:
604 * Scope (DEB) { ... }
607 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
)));
609 node
->type
= ACPI_TYPE_ANY
;
610 walk_state
->scope_info
->common
.value
= ACPI_TYPE_ANY
;
615 /* All other types are an error */
617 ACPI_REPORT_ERROR(("Invalid type (%s) for target of Scope operator [%4.4s]\n", acpi_ut_get_type_name(node
->type
), buffer_ptr
));
619 return (AE_AML_OPERAND_TYPE
);
625 /* All other opcodes */
627 if (op
&& op
->common
.node
) {
628 /* This op/node was previously entered into the namespace */
630 node
= op
->common
.node
;
632 if (acpi_ns_opens_scope(object_type
)) {
634 acpi_ds_scope_stack_push(node
, object_type
,
636 if (ACPI_FAILURE(status
)) {
637 return_ACPI_STATUS(status
);
641 return_ACPI_STATUS(AE_OK
);
645 * Enter the named type into the internal namespace. We enter the name
646 * as we go downward in the parse tree. Any necessary subobjects that
647 * involve arguments to the opcode must be created as we go back up the
650 * Note: Name may already exist if we are executing a deferred opcode.
652 if (walk_state
->deferred_node
) {
653 /* This name is already in the namespace, get the node */
655 node
= walk_state
->deferred_node
;
660 /* Add new entry into namespace */
663 acpi_ns_lookup(walk_state
->scope_info
, buffer_ptr
,
664 object_type
, ACPI_IMODE_LOAD_PASS2
,
665 ACPI_NS_NO_UPSEARCH
, walk_state
, &(node
));
669 if (ACPI_FAILURE(status
)) {
670 ACPI_REPORT_NSERROR(buffer_ptr
, status
);
671 return_ACPI_STATUS(status
);
675 /* Create a new op */
677 op
= acpi_ps_alloc_op(walk_state
->opcode
);
679 return_ACPI_STATUS(AE_NO_MEMORY
);
682 /* Initialize the new op */
685 op
->named
.name
= node
->name
.integer
;
691 * Put the Node in the "op" object that the parser uses, so we
692 * can get it again quickly when this scope is closed
694 op
->common
.node
= node
;
696 return_ACPI_STATUS(status
);
699 /*******************************************************************************
701 * FUNCTION: acpi_ds_load2_end_op
703 * PARAMETERS: walk_state - Current state of the parse tree walk
707 * DESCRIPTION: Ascending callback used during the loading of the namespace,
708 * both control methods and everything else.
710 ******************************************************************************/
712 acpi_status
acpi_ds_load2_end_op(struct acpi_walk_state
*walk_state
)
714 union acpi_parse_object
*op
;
715 acpi_status status
= AE_OK
;
716 acpi_object_type object_type
;
717 struct acpi_namespace_node
*node
;
718 union acpi_parse_object
*arg
;
719 struct acpi_namespace_node
*new_node
;
720 #ifndef ACPI_NO_METHOD_EXECUTION
724 ACPI_FUNCTION_TRACE("ds_load2_end_op");
727 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
, "Opcode [%s] Op %p State %p\n",
728 walk_state
->op_info
->name
, op
, walk_state
));
730 /* Check if opcode had an associated namespace object */
732 if (!(walk_state
->op_info
->flags
& AML_NSOBJECT
)) {
733 #ifndef ACPI_NO_METHOD_EXECUTION
734 /* No namespace object. Executable opcode? */
736 if ((walk_state
->op_info
->class == AML_CLASS_EXECUTE
) ||
737 (walk_state
->op_info
->class == AML_CLASS_CONTROL
)) {
738 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
739 "End/EXEC: %s (fl %8.8X)\n",
740 walk_state
->op_info
->name
,
741 walk_state
->op_info
->flags
));
743 /* Executing a type1 or type2 opcode outside of a method */
745 status
= acpi_ds_exec_end_op(walk_state
);
746 return_ACPI_STATUS(status
);
749 return_ACPI_STATUS(AE_OK
);
752 if (op
->common
.aml_opcode
== AML_SCOPE_OP
) {
753 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
754 "Ending scope Op=%p State=%p\n", op
,
758 object_type
= walk_state
->op_info
->object_type
;
761 * Get the Node/name from the earlier lookup
762 * (It was saved in the *op structure)
764 node
= op
->common
.node
;
767 * Put the Node on the object stack (Contains the ACPI Name of
770 walk_state
->operands
[0] = (void *)node
;
771 walk_state
->num_operands
= 1;
773 /* Pop the scope stack */
775 if (acpi_ns_opens_scope(object_type
) &&
776 (op
->common
.aml_opcode
!= AML_INT_METHODCALL_OP
)) {
777 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
778 "(%s) Popping scope for Op %p\n",
779 acpi_ut_get_type_name(object_type
), op
));
781 status
= acpi_ds_scope_stack_pop(walk_state
);
782 if (ACPI_FAILURE(status
)) {
788 * Named operations are as follows:
793 * AML_CREATEBYTEFIELD
794 * AML_CREATEDWORDFIELD
796 * AML_CREATEQWORDFIELD
797 * AML_CREATEWORDFIELD
815 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
816 "Create-Load [%s] State=%p Op=%p named_obj=%p\n",
817 acpi_ps_get_opcode_name(op
->common
.aml_opcode
),
818 walk_state
, op
, node
));
820 /* Decode the opcode */
822 arg
= op
->common
.value
.arg
;
824 switch (walk_state
->op_info
->type
) {
825 #ifndef ACPI_NO_METHOD_EXECUTION
827 case AML_TYPE_CREATE_FIELD
:
830 * Create the field object, but the field buffer and index must
831 * be evaluated later during the execution phase
833 status
= acpi_ds_create_buffer_field(op
, walk_state
);
836 case AML_TYPE_NAMED_FIELD
:
838 switch (op
->common
.aml_opcode
) {
839 case AML_INDEX_FIELD_OP
:
842 acpi_ds_create_index_field(op
,
844 common
.node
, walk_state
);
847 case AML_BANK_FIELD_OP
:
850 acpi_ds_create_bank_field(op
, arg
->common
.node
,
857 acpi_ds_create_field(op
, arg
->common
.node
,
862 /* All NAMED_FIELD opcodes must be handled above */
867 case AML_TYPE_NAMED_SIMPLE
:
869 status
= acpi_ds_create_operands(walk_state
, arg
);
870 if (ACPI_FAILURE(status
)) {
874 switch (op
->common
.aml_opcode
) {
875 case AML_PROCESSOR_OP
:
877 status
= acpi_ex_create_processor(walk_state
);
880 case AML_POWER_RES_OP
:
882 status
= acpi_ex_create_power_resource(walk_state
);
887 status
= acpi_ex_create_mutex(walk_state
);
892 status
= acpi_ex_create_event(walk_state
);
895 case AML_DATA_REGION_OP
:
897 status
= acpi_ex_create_table_region(walk_state
);
902 status
= acpi_ex_create_alias(walk_state
);
912 /* Delete operands */
914 for (i
= 1; i
< walk_state
->num_operands
; i
++) {
915 acpi_ut_remove_reference(walk_state
->operands
[i
]);
916 walk_state
->operands
[i
] = NULL
;
920 #endif /* ACPI_NO_METHOD_EXECUTION */
922 case AML_TYPE_NAMED_COMPLEX
:
924 switch (op
->common
.aml_opcode
) {
925 #ifndef ACPI_NO_METHOD_EXECUTION
928 * The op_region is not fully parsed at this time. Only valid
929 * argument is the space_id. (We must save the address of the
930 * AML of the address and length operands)
933 * If we have a valid region, initialize it
934 * Namespace is NOT locked at this point.
937 acpi_ev_initialize_region
938 (acpi_ns_get_attached_object(node
), FALSE
);
939 if (ACPI_FAILURE(status
)) {
941 * If AE_NOT_EXIST is returned, it is not fatal
942 * because many regions get created before a handler
943 * is installed for said region.
945 if (AE_NOT_EXIST
== status
) {
953 status
= acpi_ds_create_node(walk_state
, node
, op
);
955 #endif /* ACPI_NO_METHOD_EXECUTION */
958 /* All NAMED_COMPLEX opcodes must be handled above */
959 /* Note: Method objects were already created in Pass 1 */
964 case AML_CLASS_INTERNAL
:
966 /* case AML_INT_NAMEPATH_OP: */
969 case AML_CLASS_METHOD_CALL
:
971 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
972 "RESOLVING-method_call: State=%p Op=%p named_obj=%p\n",
973 walk_state
, op
, node
));
976 * Lookup the method name and save the Node
979 acpi_ns_lookup(walk_state
->scope_info
,
980 arg
->common
.value
.string
, ACPI_TYPE_ANY
,
981 ACPI_IMODE_LOAD_PASS2
,
982 ACPI_NS_SEARCH_PARENT
|
983 ACPI_NS_DONT_OPEN_SCOPE
, walk_state
,
985 if (ACPI_SUCCESS(status
)) {
988 * Make sure that what we found is indeed a method
989 * We didn't search for a method on purpose, to see if the name
992 if (new_node
->type
!= ACPI_TYPE_METHOD
) {
993 status
= AE_AML_OPERAND_TYPE
;
996 /* We could put the returned object (Node) on the object stack for
997 * later, but for now, we will put it in the "op" object that the
998 * parser uses, so we can get it again at the end of this scope
1000 op
->common
.node
= new_node
;
1002 ACPI_REPORT_NSERROR(arg
->common
.value
.string
, status
);
1012 /* Remove the Node pushed at the very beginning */
1014 walk_state
->operands
[0] = NULL
;
1015 walk_state
->num_operands
= 0;
1016 return_ACPI_STATUS(status
);