1 /******************************************************************************
3 * Module Name: dswload - Dispatcher namespace load callbacks
5 *****************************************************************************/
8 * Copyright (C) 2000 - 2006, 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_ERROR_NAMESPACE(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 */
237 "Invalid type (%s) for target of Scope operator [%4.4s] (Cannot override)",
238 acpi_ut_get_type_name(node
->type
), path
));
240 return_ACPI_STATUS(AE_AML_OPERAND_TYPE
);
247 * For all other named opcodes, we will enter the name into
250 * Setup the search flags.
251 * Since we are entering a name into the namespace, we do not want to
252 * enable the search-to-root upsearch.
254 * There are only two conditions where it is acceptable that the name
256 * 1) the Scope() operator can reopen a scoping object that was
257 * previously defined (Scope, Method, Device, etc.)
258 * 2) Whenever we are parsing a deferred opcode (op_region, Buffer,
259 * buffer_field, or Package), the name of the object is already
263 if (walk_state
->deferred_node
) {
264 /* This name is already in the namespace, get the node */
266 node
= walk_state
->deferred_node
;
272 * If we are executing a method, do not create any namespace objects
273 * during the load phase, only during execution.
275 if (walk_state
->method_node
) {
281 flags
= ACPI_NS_NO_UPSEARCH
;
282 if ((walk_state
->opcode
!= AML_SCOPE_OP
) &&
283 (!(walk_state
->parse_flags
& ACPI_PARSE_DEFERRED_OP
))) {
284 flags
|= ACPI_NS_ERROR_IF_FOUND
;
285 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
286 "[%s] Cannot already exist\n",
287 acpi_ut_get_type_name(object_type
)));
289 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
290 "[%s] Both Find or Create allowed\n",
291 acpi_ut_get_type_name(object_type
)));
295 * Enter the named type into the internal namespace. We enter the name
296 * as we go downward in the parse tree. Any necessary subobjects that
297 * involve arguments to the opcode must be created as we go back up the
301 acpi_ns_lookup(walk_state
->scope_info
, path
, object_type
,
302 ACPI_IMODE_LOAD_PASS1
, flags
, walk_state
,
304 if (ACPI_FAILURE(status
)) {
305 ACPI_ERROR_NAMESPACE(path
, status
);
306 return_ACPI_STATUS(status
);
314 /* Create a new op */
316 op
= acpi_ps_alloc_op(walk_state
->opcode
);
318 return_ACPI_STATUS(AE_NO_MEMORY
);
322 /* Initialize the op */
324 #if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY))
325 op
->named
.path
= ACPI_CAST_PTR(u8
, path
);
330 * Put the Node in the "op" object that the parser uses, so we
331 * can get it again quickly when this scope is closed
333 op
->common
.node
= node
;
334 op
->named
.name
= node
->name
.integer
;
337 acpi_ps_append_arg(acpi_ps_get_parent_scope(&walk_state
->parser_state
),
340 return_ACPI_STATUS(status
);
343 /*******************************************************************************
345 * FUNCTION: acpi_ds_load1_end_op
347 * PARAMETERS: walk_state - Current state of the parse tree walk
351 * DESCRIPTION: Ascending callback used during the loading of the namespace,
352 * both control methods and everything else.
354 ******************************************************************************/
356 acpi_status
acpi_ds_load1_end_op(struct acpi_walk_state
*walk_state
)
358 union acpi_parse_object
*op
;
359 acpi_object_type object_type
;
360 acpi_status status
= AE_OK
;
362 ACPI_FUNCTION_TRACE("ds_load1_end_op");
365 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
, "Op=%p State=%p\n", op
,
368 /* We are only interested in opcodes that have an associated name */
370 if (!(walk_state
->op_info
->flags
& (AML_NAMED
| AML_FIELD
))) {
371 return_ACPI_STATUS(AE_OK
);
374 /* Get the object type to determine if we should pop the scope */
376 object_type
= walk_state
->op_info
->object_type
;
378 #ifndef ACPI_NO_METHOD_EXECUTION
379 if (walk_state
->op_info
->flags
& AML_FIELD
) {
381 * If we are executing a method, do not create any namespace objects
382 * during the load phase, only during execution.
384 if (!walk_state
->method_node
) {
385 if (walk_state
->opcode
== AML_FIELD_OP
||
386 walk_state
->opcode
== AML_BANK_FIELD_OP
||
387 walk_state
->opcode
== AML_INDEX_FIELD_OP
) {
389 acpi_ds_init_field_objects(op
, walk_state
);
392 return_ACPI_STATUS(status
);
396 * If we are executing a method, do not create any namespace objects
397 * during the load phase, only during execution.
399 if (!walk_state
->method_node
) {
400 if (op
->common
.aml_opcode
== AML_REGION_OP
) {
402 acpi_ex_create_region(op
->named
.data
,
404 (acpi_adr_space_type
)
405 ((op
->common
.value
.arg
)->
406 common
.value
.integer
),
408 if (ACPI_FAILURE(status
)) {
409 return_ACPI_STATUS(status
);
415 if (op
->common
.aml_opcode
== AML_NAME_OP
) {
416 /* For Name opcode, get the object type from the argument */
418 if (op
->common
.value
.arg
) {
419 object_type
= (acpi_ps_get_opcode_info((op
->common
.
425 /* Set node type if we have a namespace node */
427 if (op
->common
.node
) {
428 op
->common
.node
->type
= (u8
) object_type
;
434 * If we are executing a method, do not create any namespace objects
435 * during the load phase, only during execution.
437 if (!walk_state
->method_node
) {
438 if (op
->common
.aml_opcode
== AML_METHOD_OP
) {
440 * method_op pkg_length name_string method_flags term_list
442 * Note: We must create the method node/object pair as soon as we
443 * see the method declaration. This allows later pass1 parsing
444 * of invocations of the method (need to know the number of
447 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
448 "LOADING-Method: State=%p Op=%p named_obj=%p\n",
449 walk_state
, op
, op
->named
.node
));
451 if (!acpi_ns_get_attached_object(op
->named
.node
)) {
452 walk_state
->operands
[0] =
453 ACPI_CAST_PTR(void, op
->named
.node
);
454 walk_state
->num_operands
= 1;
457 acpi_ds_create_operands(walk_state
,
460 if (ACPI_SUCCESS(status
)) {
462 acpi_ex_create_method(op
->named
.
468 walk_state
->operands
[0] = NULL
;
469 walk_state
->num_operands
= 0;
471 if (ACPI_FAILURE(status
)) {
472 return_ACPI_STATUS(status
);
478 /* Pop the scope stack (only if loading a table) */
480 if (!walk_state
->method_node
&& acpi_ns_opens_scope(object_type
)) {
481 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
482 "(%s): Popping scope for Op %p\n",
483 acpi_ut_get_type_name(object_type
), op
));
485 status
= acpi_ds_scope_stack_pop(walk_state
);
488 return_ACPI_STATUS(status
);
491 /*******************************************************************************
493 * FUNCTION: acpi_ds_load2_begin_op
495 * PARAMETERS: walk_state - Current state of the parse tree walk
496 * out_op - Wher to return op if a new one is created
500 * DESCRIPTION: Descending callback used during the loading of ACPI tables.
502 ******************************************************************************/
505 acpi_ds_load2_begin_op(struct acpi_walk_state
*walk_state
,
506 union acpi_parse_object
**out_op
)
508 union acpi_parse_object
*op
;
509 struct acpi_namespace_node
*node
;
511 acpi_object_type object_type
;
514 ACPI_FUNCTION_TRACE("ds_load2_begin_op");
517 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
, "Op=%p State=%p\n", op
,
521 if ((walk_state
->control_state
) &&
522 (walk_state
->control_state
->common
.state
==
523 ACPI_CONTROL_CONDITIONAL_EXECUTING
)) {
524 /* We are executing a while loop outside of a method */
526 status
= acpi_ds_exec_begin_op(walk_state
, out_op
);
527 return_ACPI_STATUS(status
);
530 /* We only care about Namespace opcodes here */
532 if ((!(walk_state
->op_info
->flags
& AML_NSOPCODE
) &&
533 (walk_state
->opcode
!= AML_INT_NAMEPATH_OP
)) ||
534 (!(walk_state
->op_info
->flags
& AML_NAMED
))) {
535 #ifdef ACPI_ENABLE_MODULE_LEVEL_CODE
536 if ((walk_state
->op_info
->class == AML_CLASS_EXECUTE
) ||
537 (walk_state
->op_info
->class == AML_CLASS_CONTROL
)) {
539 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
540 "Begin/EXEC: %s (fl %8.8X)\n",
541 walk_state
->op_info
->name
,
542 walk_state
->op_info
->flags
));
544 /* Executing a type1 or type2 opcode outside of a method */
547 acpi_ds_exec_begin_op(walk_state
, out_op
);
548 return_ACPI_STATUS(status
);
551 return_ACPI_STATUS(AE_OK
);
554 /* Get the name we are going to enter or lookup in the namespace */
556 if (walk_state
->opcode
== AML_INT_NAMEPATH_OP
) {
557 /* For Namepath op, get the path string */
559 buffer_ptr
= op
->common
.value
.string
;
561 /* No name, just exit */
563 return_ACPI_STATUS(AE_OK
);
566 /* Get name from the op */
568 buffer_ptr
= (char *)&op
->named
.name
;
571 /* Get the namestring from the raw AML */
574 acpi_ps_get_next_namestring(&walk_state
->parser_state
);
577 /* Map the opcode into an internal object type */
579 object_type
= walk_state
->op_info
->object_type
;
581 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
582 "State=%p Op=%p Type=%X\n", walk_state
, op
,
585 switch (walk_state
->opcode
) {
587 case AML_BANK_FIELD_OP
:
588 case AML_INDEX_FIELD_OP
:
594 case AML_INT_NAMEPATH_OP
:
597 * The name_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
));
610 * The Path is an object reference to an existing object.
611 * Don't enter the name into the namespace, but look it up
615 acpi_ns_lookup(walk_state
->scope_info
, buffer_ptr
,
616 object_type
, ACPI_IMODE_EXECUTE
,
617 ACPI_NS_SEARCH_PARENT
, walk_state
, &(node
));
618 if (ACPI_FAILURE(status
)) {
619 #ifdef ACPI_ASL_COMPILER
620 if (status
== AE_NOT_FOUND
) {
623 ACPI_ERROR_NAMESPACE(buffer_ptr
, status
);
626 ACPI_ERROR_NAMESPACE(buffer_ptr
, status
);
628 return_ACPI_STATUS(status
);
631 * We must check to make sure that the target is
632 * one of the opcodes that actually opens a scope
634 switch (node
->type
) {
635 case ACPI_TYPE_LOCAL_SCOPE
: /* Scope */
636 case ACPI_TYPE_DEVICE
:
637 case ACPI_TYPE_POWER
:
638 case ACPI_TYPE_PROCESSOR
:
639 case ACPI_TYPE_THERMAL
:
641 /* These are acceptable types */
644 case ACPI_TYPE_INTEGER
:
645 case ACPI_TYPE_STRING
:
646 case ACPI_TYPE_BUFFER
:
649 * These types we will allow, but we will change the type. This
650 * enables some existing code of the form:
653 * Scope (DEB) { ... }
656 ACPI_WARNING((AE_INFO
,
657 "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)",
659 acpi_ut_get_type_name(node
->type
)));
661 node
->type
= ACPI_TYPE_ANY
;
662 walk_state
->scope_info
->common
.value
= ACPI_TYPE_ANY
;
667 /* All other types are an error */
670 "Invalid type (%s) for target of Scope operator [%4.4s]",
671 acpi_ut_get_type_name(node
->type
),
674 return (AE_AML_OPERAND_TYPE
);
680 /* All other opcodes */
682 if (op
&& op
->common
.node
) {
683 /* This op/node was previously entered into the namespace */
685 node
= op
->common
.node
;
687 if (acpi_ns_opens_scope(object_type
)) {
689 acpi_ds_scope_stack_push(node
, object_type
,
691 if (ACPI_FAILURE(status
)) {
692 return_ACPI_STATUS(status
);
696 return_ACPI_STATUS(AE_OK
);
700 * Enter the named type into the internal namespace. We enter the name
701 * as we go downward in the parse tree. Any necessary subobjects that
702 * involve arguments to the opcode must be created as we go back up the
705 * Note: Name may already exist if we are executing a deferred opcode.
707 if (walk_state
->deferred_node
) {
708 /* This name is already in the namespace, get the node */
710 node
= walk_state
->deferred_node
;
715 /* Add new entry into namespace */
718 acpi_ns_lookup(walk_state
->scope_info
, buffer_ptr
,
719 object_type
, ACPI_IMODE_LOAD_PASS2
,
720 ACPI_NS_NO_UPSEARCH
, walk_state
, &(node
));
724 if (ACPI_FAILURE(status
)) {
725 ACPI_ERROR_NAMESPACE(buffer_ptr
, status
);
726 return_ACPI_STATUS(status
);
730 /* Create a new op */
732 op
= acpi_ps_alloc_op(walk_state
->opcode
);
734 return_ACPI_STATUS(AE_NO_MEMORY
);
737 /* Initialize the new op */
740 op
->named
.name
= node
->name
.integer
;
746 * Put the Node in the "op" object that the parser uses, so we
747 * can get it again quickly when this scope is closed
749 op
->common
.node
= node
;
751 return_ACPI_STATUS(status
);
754 /*******************************************************************************
756 * FUNCTION: acpi_ds_load2_end_op
758 * PARAMETERS: walk_state - Current state of the parse tree walk
762 * DESCRIPTION: Ascending callback used during the loading of the namespace,
763 * both control methods and everything else.
765 ******************************************************************************/
767 acpi_status
acpi_ds_load2_end_op(struct acpi_walk_state
*walk_state
)
769 union acpi_parse_object
*op
;
770 acpi_status status
= AE_OK
;
771 acpi_object_type object_type
;
772 struct acpi_namespace_node
*node
;
773 union acpi_parse_object
*arg
;
774 struct acpi_namespace_node
*new_node
;
775 #ifndef ACPI_NO_METHOD_EXECUTION
779 ACPI_FUNCTION_TRACE("ds_load2_end_op");
782 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
, "Opcode [%s] Op %p State %p\n",
783 walk_state
->op_info
->name
, op
, walk_state
));
785 /* Check if opcode had an associated namespace object */
787 if (!(walk_state
->op_info
->flags
& AML_NSOBJECT
)) {
788 #ifndef ACPI_NO_METHOD_EXECUTION
789 #ifdef ACPI_ENABLE_MODULE_LEVEL_CODE
790 /* No namespace object. Executable opcode? */
792 if ((walk_state
->op_info
->class == AML_CLASS_EXECUTE
) ||
793 (walk_state
->op_info
->class == AML_CLASS_CONTROL
)) {
794 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
795 "End/EXEC: %s (fl %8.8X)\n",
796 walk_state
->op_info
->name
,
797 walk_state
->op_info
->flags
));
799 /* Executing a type1 or type2 opcode outside of a method */
801 status
= acpi_ds_exec_end_op(walk_state
);
802 return_ACPI_STATUS(status
);
806 return_ACPI_STATUS(AE_OK
);
809 if (op
->common
.aml_opcode
== AML_SCOPE_OP
) {
810 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
811 "Ending scope Op=%p State=%p\n", op
,
815 object_type
= walk_state
->op_info
->object_type
;
818 * Get the Node/name from the earlier lookup
819 * (It was saved in the *op structure)
821 node
= op
->common
.node
;
824 * Put the Node on the object stack (Contains the ACPI Name of
827 walk_state
->operands
[0] = (void *)node
;
828 walk_state
->num_operands
= 1;
830 /* Pop the scope stack */
832 if (acpi_ns_opens_scope(object_type
) &&
833 (op
->common
.aml_opcode
!= AML_INT_METHODCALL_OP
)) {
834 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
835 "(%s) Popping scope for Op %p\n",
836 acpi_ut_get_type_name(object_type
), op
));
838 status
= acpi_ds_scope_stack_pop(walk_state
);
839 if (ACPI_FAILURE(status
)) {
845 * Named operations are as follows:
850 * AML_CREATEBYTEFIELD
851 * AML_CREATEDWORDFIELD
853 * AML_CREATEQWORDFIELD
854 * AML_CREATEWORDFIELD
872 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
873 "Create-Load [%s] State=%p Op=%p named_obj=%p\n",
874 acpi_ps_get_opcode_name(op
->common
.aml_opcode
),
875 walk_state
, op
, node
));
877 /* Decode the opcode */
879 arg
= op
->common
.value
.arg
;
881 switch (walk_state
->op_info
->type
) {
882 #ifndef ACPI_NO_METHOD_EXECUTION
884 case AML_TYPE_CREATE_FIELD
:
887 * Create the field object, but the field buffer and index must
888 * be evaluated later during the execution phase
890 status
= acpi_ds_create_buffer_field(op
, walk_state
);
893 case AML_TYPE_NAMED_FIELD
:
896 * If we are executing a method, initialize the field
898 if (walk_state
->method_node
) {
899 status
= acpi_ds_init_field_objects(op
, walk_state
);
902 switch (op
->common
.aml_opcode
) {
903 case AML_INDEX_FIELD_OP
:
906 acpi_ds_create_index_field(op
,
908 common
.node
, walk_state
);
911 case AML_BANK_FIELD_OP
:
914 acpi_ds_create_bank_field(op
, arg
->common
.node
,
921 acpi_ds_create_field(op
, arg
->common
.node
,
926 /* All NAMED_FIELD opcodes must be handled above */
931 case AML_TYPE_NAMED_SIMPLE
:
933 status
= acpi_ds_create_operands(walk_state
, arg
);
934 if (ACPI_FAILURE(status
)) {
938 switch (op
->common
.aml_opcode
) {
939 case AML_PROCESSOR_OP
:
941 status
= acpi_ex_create_processor(walk_state
);
944 case AML_POWER_RES_OP
:
946 status
= acpi_ex_create_power_resource(walk_state
);
951 status
= acpi_ex_create_mutex(walk_state
);
956 status
= acpi_ex_create_event(walk_state
);
959 case AML_DATA_REGION_OP
:
961 status
= acpi_ex_create_table_region(walk_state
);
966 status
= acpi_ex_create_alias(walk_state
);
976 /* Delete operands */
978 for (i
= 1; i
< walk_state
->num_operands
; i
++) {
979 acpi_ut_remove_reference(walk_state
->operands
[i
]);
980 walk_state
->operands
[i
] = NULL
;
984 #endif /* ACPI_NO_METHOD_EXECUTION */
986 case AML_TYPE_NAMED_COMPLEX
:
988 switch (op
->common
.aml_opcode
) {
989 #ifndef ACPI_NO_METHOD_EXECUTION
993 * If we are executing a method, initialize the region
995 if (walk_state
->method_node
) {
997 acpi_ex_create_region(op
->named
.data
,
999 (acpi_adr_space_type
)
1004 if (ACPI_FAILURE(status
)) {
1010 * The op_region is not fully parsed at this time. Only valid
1011 * argument is the space_id. (We must save the address of the
1012 * AML of the address and length operands)
1015 * If we have a valid region, initialize it
1016 * Namespace is NOT locked at this point.
1019 acpi_ev_initialize_region
1020 (acpi_ns_get_attached_object(node
), FALSE
);
1021 if (ACPI_FAILURE(status
)) {
1023 * If AE_NOT_EXIST is returned, it is not fatal
1024 * because many regions get created before a handler
1025 * is installed for said region.
1027 if (AE_NOT_EXIST
== status
) {
1035 status
= acpi_ds_create_node(walk_state
, node
, op
);
1040 * method_op pkg_length name_string method_flags term_list
1042 * Note: We must create the method node/object pair as soon as we
1043 * see the method declaration. This allows later pass1 parsing
1044 * of invocations of the method (need to know the number of
1047 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
1048 "LOADING-Method: State=%p Op=%p named_obj=%p\n",
1049 walk_state
, op
, op
->named
.node
));
1051 if (!acpi_ns_get_attached_object(op
->named
.node
)) {
1052 walk_state
->operands
[0] =
1053 ACPI_CAST_PTR(void, op
->named
.node
);
1054 walk_state
->num_operands
= 1;
1057 acpi_ds_create_operands(walk_state
,
1060 if (ACPI_SUCCESS(status
)) {
1062 acpi_ex_create_method(op
->named
.
1068 walk_state
->operands
[0] = NULL
;
1069 walk_state
->num_operands
= 0;
1071 if (ACPI_FAILURE(status
)) {
1072 return_ACPI_STATUS(status
);
1077 #endif /* ACPI_NO_METHOD_EXECUTION */
1080 /* All NAMED_COMPLEX opcodes must be handled above */
1085 case AML_CLASS_INTERNAL
:
1087 /* case AML_INT_NAMEPATH_OP: */
1090 case AML_CLASS_METHOD_CALL
:
1092 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
1093 "RESOLVING-method_call: State=%p Op=%p named_obj=%p\n",
1094 walk_state
, op
, node
));
1097 * Lookup the method name and save the Node
1100 acpi_ns_lookup(walk_state
->scope_info
,
1101 arg
->common
.value
.string
, ACPI_TYPE_ANY
,
1102 ACPI_IMODE_LOAD_PASS2
,
1103 ACPI_NS_SEARCH_PARENT
|
1104 ACPI_NS_DONT_OPEN_SCOPE
, walk_state
,
1106 if (ACPI_SUCCESS(status
)) {
1109 * Make sure that what we found is indeed a method
1110 * We didn't search for a method on purpose, to see if the name
1113 if (new_node
->type
!= ACPI_TYPE_METHOD
) {
1114 status
= AE_AML_OPERAND_TYPE
;
1117 /* We could put the returned object (Node) on the object stack for
1118 * later, but for now, we will put it in the "op" object that the
1119 * parser uses, so we can get it again at the end of this scope
1121 op
->common
.node
= new_node
;
1123 ACPI_ERROR_NAMESPACE(arg
->common
.value
.string
, status
);
1133 /* Remove the Node pushed at the very beginning */
1135 walk_state
->operands
[0] = NULL
;
1136 walk_state
->num_operands
= 0;
1137 return_ACPI_STATUS(status
);