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
) {
265 /* This name is already in the namespace, get the node */
267 node
= walk_state
->deferred_node
;
273 * If we are executing a method, do not create any namespace objects
274 * during the load phase, only during execution.
276 if (walk_state
->method_node
) {
282 flags
= ACPI_NS_NO_UPSEARCH
;
283 if ((walk_state
->opcode
!= AML_SCOPE_OP
) &&
284 (!(walk_state
->parse_flags
& ACPI_PARSE_DEFERRED_OP
))) {
285 flags
|= ACPI_NS_ERROR_IF_FOUND
;
286 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
287 "[%s] Cannot already exist\n",
288 acpi_ut_get_type_name(object_type
)));
290 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
291 "[%s] Both Find or Create allowed\n",
292 acpi_ut_get_type_name(object_type
)));
296 * Enter the named type into the internal namespace. We enter the name
297 * as we go downward in the parse tree. Any necessary subobjects that
298 * involve arguments to the opcode must be created as we go back up the
302 acpi_ns_lookup(walk_state
->scope_info
, path
, object_type
,
303 ACPI_IMODE_LOAD_PASS1
, flags
, walk_state
,
305 if (ACPI_FAILURE(status
)) {
306 ACPI_ERROR_NAMESPACE(path
, status
);
307 return_ACPI_STATUS(status
);
316 /* Create a new op */
318 op
= acpi_ps_alloc_op(walk_state
->opcode
);
320 return_ACPI_STATUS(AE_NO_MEMORY
);
324 /* Initialize the op */
326 #if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY))
327 op
->named
.path
= ACPI_CAST_PTR(u8
, path
);
332 * Put the Node in the "op" object that the parser uses, so we
333 * can get it again quickly when this scope is closed
335 op
->common
.node
= node
;
336 op
->named
.name
= node
->name
.integer
;
339 acpi_ps_append_arg(acpi_ps_get_parent_scope(&walk_state
->parser_state
),
342 return_ACPI_STATUS(status
);
345 /*******************************************************************************
347 * FUNCTION: acpi_ds_load1_end_op
349 * PARAMETERS: walk_state - Current state of the parse tree walk
353 * DESCRIPTION: Ascending callback used during the loading of the namespace,
354 * both control methods and everything else.
356 ******************************************************************************/
358 acpi_status
acpi_ds_load1_end_op(struct acpi_walk_state
*walk_state
)
360 union acpi_parse_object
*op
;
361 acpi_object_type object_type
;
362 acpi_status status
= AE_OK
;
364 ACPI_FUNCTION_TRACE(ds_load1_end_op
);
367 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
, "Op=%p State=%p\n", op
,
370 /* We are only interested in opcodes that have an associated name */
372 if (!(walk_state
->op_info
->flags
& (AML_NAMED
| AML_FIELD
))) {
373 return_ACPI_STATUS(AE_OK
);
376 /* Get the object type to determine if we should pop the scope */
378 object_type
= walk_state
->op_info
->object_type
;
380 #ifndef ACPI_NO_METHOD_EXECUTION
381 if (walk_state
->op_info
->flags
& AML_FIELD
) {
383 * If we are executing a method, do not create any namespace objects
384 * during the load phase, only during execution.
386 if (!walk_state
->method_node
) {
387 if (walk_state
->opcode
== AML_FIELD_OP
||
388 walk_state
->opcode
== AML_BANK_FIELD_OP
||
389 walk_state
->opcode
== AML_INDEX_FIELD_OP
) {
391 acpi_ds_init_field_objects(op
, walk_state
);
394 return_ACPI_STATUS(status
);
398 * If we are executing a method, do not create any namespace objects
399 * during the load phase, only during execution.
401 if (!walk_state
->method_node
) {
402 if (op
->common
.aml_opcode
== AML_REGION_OP
) {
404 acpi_ex_create_region(op
->named
.data
,
406 (acpi_adr_space_type
)
407 ((op
->common
.value
.arg
)->
408 common
.value
.integer
),
410 if (ACPI_FAILURE(status
)) {
411 return_ACPI_STATUS(status
);
417 if (op
->common
.aml_opcode
== AML_NAME_OP
) {
419 /* For Name opcode, get the object type from the argument */
421 if (op
->common
.value
.arg
) {
422 object_type
= (acpi_ps_get_opcode_info((op
->common
.
428 /* Set node type if we have a namespace node */
430 if (op
->common
.node
) {
431 op
->common
.node
->type
= (u8
) object_type
;
437 * If we are executing a method, do not create any namespace objects
438 * during the load phase, only during execution.
440 if (!walk_state
->method_node
) {
441 if (op
->common
.aml_opcode
== AML_METHOD_OP
) {
443 * method_op pkg_length name_string method_flags term_list
445 * Note: We must create the method node/object pair as soon as we
446 * see the method declaration. This allows later pass1 parsing
447 * of invocations of the method (need to know the number of
450 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
451 "LOADING-Method: State=%p Op=%p NamedObj=%p\n",
452 walk_state
, op
, op
->named
.node
));
454 if (!acpi_ns_get_attached_object(op
->named
.node
)) {
455 walk_state
->operands
[0] =
456 ACPI_CAST_PTR(void, op
->named
.node
);
457 walk_state
->num_operands
= 1;
460 acpi_ds_create_operands(walk_state
,
463 if (ACPI_SUCCESS(status
)) {
465 acpi_ex_create_method(op
->named
.
471 walk_state
->operands
[0] = NULL
;
472 walk_state
->num_operands
= 0;
474 if (ACPI_FAILURE(status
)) {
475 return_ACPI_STATUS(status
);
481 /* Pop the scope stack (only if loading a table) */
483 if (!walk_state
->method_node
&& acpi_ns_opens_scope(object_type
)) {
484 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
485 "(%s): Popping scope for Op %p\n",
486 acpi_ut_get_type_name(object_type
), op
));
488 status
= acpi_ds_scope_stack_pop(walk_state
);
491 return_ACPI_STATUS(status
);
494 /*******************************************************************************
496 * FUNCTION: acpi_ds_load2_begin_op
498 * PARAMETERS: walk_state - Current state of the parse tree walk
499 * out_op - Wher to return op if a new one is created
503 * DESCRIPTION: Descending callback used during the loading of ACPI tables.
505 ******************************************************************************/
508 acpi_ds_load2_begin_op(struct acpi_walk_state
*walk_state
,
509 union acpi_parse_object
**out_op
)
511 union acpi_parse_object
*op
;
512 struct acpi_namespace_node
*node
;
514 acpi_object_type object_type
;
517 ACPI_FUNCTION_TRACE(ds_load2_begin_op
);
520 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
, "Op=%p State=%p\n", op
,
524 if ((walk_state
->control_state
) &&
525 (walk_state
->control_state
->common
.state
==
526 ACPI_CONTROL_CONDITIONAL_EXECUTING
)) {
528 /* We are executing a while loop outside of a method */
530 status
= acpi_ds_exec_begin_op(walk_state
, out_op
);
531 return_ACPI_STATUS(status
);
534 /* We only care about Namespace opcodes here */
536 if ((!(walk_state
->op_info
->flags
& AML_NSOPCODE
) &&
537 (walk_state
->opcode
!= AML_INT_NAMEPATH_OP
)) ||
538 (!(walk_state
->op_info
->flags
& AML_NAMED
))) {
539 #ifdef ACPI_ENABLE_MODULE_LEVEL_CODE
540 if ((walk_state
->op_info
->class == AML_CLASS_EXECUTE
) ||
541 (walk_state
->op_info
->class == AML_CLASS_CONTROL
)) {
543 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
544 "Begin/EXEC: %s (fl %8.8X)\n",
545 walk_state
->op_info
->name
,
546 walk_state
->op_info
->flags
));
548 /* Executing a type1 or type2 opcode outside of a method */
551 acpi_ds_exec_begin_op(walk_state
, out_op
);
552 return_ACPI_STATUS(status
);
555 return_ACPI_STATUS(AE_OK
);
558 /* Get the name we are going to enter or lookup in the namespace */
560 if (walk_state
->opcode
== AML_INT_NAMEPATH_OP
) {
562 /* For Namepath op, get the path string */
564 buffer_ptr
= op
->common
.value
.string
;
567 /* No name, just exit */
569 return_ACPI_STATUS(AE_OK
);
572 /* Get name from the op */
574 buffer_ptr
= (char *)&op
->named
.name
;
577 /* Get the namestring from the raw AML */
580 acpi_ps_get_next_namestring(&walk_state
->parser_state
);
583 /* Map the opcode into an internal object type */
585 object_type
= walk_state
->op_info
->object_type
;
587 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
588 "State=%p Op=%p Type=%X\n", walk_state
, op
,
591 switch (walk_state
->opcode
) {
593 case AML_BANK_FIELD_OP
:
594 case AML_INDEX_FIELD_OP
:
600 case AML_INT_NAMEPATH_OP
:
603 * The name_path is an object reference to an existing object.
604 * Don't enter the name into the namespace, but look it up
608 acpi_ns_lookup(walk_state
->scope_info
, buffer_ptr
,
609 object_type
, ACPI_IMODE_EXECUTE
,
610 ACPI_NS_SEARCH_PARENT
, walk_state
, &(node
));
616 * The Path is an object reference to an existing object.
617 * Don't enter the name into the namespace, but look it up
621 acpi_ns_lookup(walk_state
->scope_info
, buffer_ptr
,
622 object_type
, ACPI_IMODE_EXECUTE
,
623 ACPI_NS_SEARCH_PARENT
, walk_state
, &(node
));
624 if (ACPI_FAILURE(status
)) {
625 #ifdef ACPI_ASL_COMPILER
626 if (status
== AE_NOT_FOUND
) {
629 ACPI_ERROR_NAMESPACE(buffer_ptr
, status
);
632 ACPI_ERROR_NAMESPACE(buffer_ptr
, status
);
634 return_ACPI_STATUS(status
);
637 * We must check to make sure that the target is
638 * one of the opcodes that actually opens a scope
640 switch (node
->type
) {
641 case ACPI_TYPE_LOCAL_SCOPE
: /* Scope */
642 case ACPI_TYPE_DEVICE
:
643 case ACPI_TYPE_POWER
:
644 case ACPI_TYPE_PROCESSOR
:
645 case ACPI_TYPE_THERMAL
:
647 /* These are acceptable types */
650 case ACPI_TYPE_INTEGER
:
651 case ACPI_TYPE_STRING
:
652 case ACPI_TYPE_BUFFER
:
655 * These types we will allow, but we will change the type. This
656 * enables some existing code of the form:
659 * Scope (DEB) { ... }
662 ACPI_WARNING((AE_INFO
,
663 "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)",
665 acpi_ut_get_type_name(node
->type
)));
667 node
->type
= ACPI_TYPE_ANY
;
668 walk_state
->scope_info
->common
.value
= ACPI_TYPE_ANY
;
673 /* All other types are an error */
676 "Invalid type (%s) for target of Scope operator [%4.4s]",
677 acpi_ut_get_type_name(node
->type
),
680 return (AE_AML_OPERAND_TYPE
);
686 /* All other opcodes */
688 if (op
&& op
->common
.node
) {
690 /* This op/node was previously entered into the namespace */
692 node
= op
->common
.node
;
694 if (acpi_ns_opens_scope(object_type
)) {
696 acpi_ds_scope_stack_push(node
, object_type
,
698 if (ACPI_FAILURE(status
)) {
699 return_ACPI_STATUS(status
);
703 return_ACPI_STATUS(AE_OK
);
707 * Enter the named type into the internal namespace. We enter the name
708 * as we go downward in the parse tree. Any necessary subobjects that
709 * involve arguments to the opcode must be created as we go back up the
712 * Note: Name may already exist if we are executing a deferred opcode.
714 if (walk_state
->deferred_node
) {
716 /* This name is already in the namespace, get the node */
718 node
= walk_state
->deferred_node
;
723 /* Add new entry into namespace */
726 acpi_ns_lookup(walk_state
->scope_info
, buffer_ptr
,
727 object_type
, ACPI_IMODE_LOAD_PASS2
,
728 ACPI_NS_NO_UPSEARCH
, walk_state
, &(node
));
732 if (ACPI_FAILURE(status
)) {
733 ACPI_ERROR_NAMESPACE(buffer_ptr
, status
);
734 return_ACPI_STATUS(status
);
739 /* Create a new op */
741 op
= acpi_ps_alloc_op(walk_state
->opcode
);
743 return_ACPI_STATUS(AE_NO_MEMORY
);
746 /* Initialize the new op */
749 op
->named
.name
= node
->name
.integer
;
755 * Put the Node in the "op" object that the parser uses, so we
756 * can get it again quickly when this scope is closed
758 op
->common
.node
= node
;
760 return_ACPI_STATUS(status
);
763 /*******************************************************************************
765 * FUNCTION: acpi_ds_load2_end_op
767 * PARAMETERS: walk_state - Current state of the parse tree walk
771 * DESCRIPTION: Ascending callback used during the loading of the namespace,
772 * both control methods and everything else.
774 ******************************************************************************/
776 acpi_status
acpi_ds_load2_end_op(struct acpi_walk_state
*walk_state
)
778 union acpi_parse_object
*op
;
779 acpi_status status
= AE_OK
;
780 acpi_object_type object_type
;
781 struct acpi_namespace_node
*node
;
782 union acpi_parse_object
*arg
;
783 struct acpi_namespace_node
*new_node
;
784 #ifndef ACPI_NO_METHOD_EXECUTION
788 ACPI_FUNCTION_TRACE(ds_load2_end_op
);
791 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
, "Opcode [%s] Op %p State %p\n",
792 walk_state
->op_info
->name
, op
, walk_state
));
794 /* Check if opcode had an associated namespace object */
796 if (!(walk_state
->op_info
->flags
& AML_NSOBJECT
)) {
797 #ifndef ACPI_NO_METHOD_EXECUTION
798 #ifdef ACPI_ENABLE_MODULE_LEVEL_CODE
799 /* No namespace object. Executable opcode? */
801 if ((walk_state
->op_info
->class == AML_CLASS_EXECUTE
) ||
802 (walk_state
->op_info
->class == AML_CLASS_CONTROL
)) {
803 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
804 "End/EXEC: %s (fl %8.8X)\n",
805 walk_state
->op_info
->name
,
806 walk_state
->op_info
->flags
));
808 /* Executing a type1 or type2 opcode outside of a method */
810 status
= acpi_ds_exec_end_op(walk_state
);
811 return_ACPI_STATUS(status
);
815 return_ACPI_STATUS(AE_OK
);
818 if (op
->common
.aml_opcode
== AML_SCOPE_OP
) {
819 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
820 "Ending scope Op=%p State=%p\n", op
,
824 object_type
= walk_state
->op_info
->object_type
;
827 * Get the Node/name from the earlier lookup
828 * (It was saved in the *op structure)
830 node
= op
->common
.node
;
833 * Put the Node on the object stack (Contains the ACPI Name of
836 walk_state
->operands
[0] = (void *)node
;
837 walk_state
->num_operands
= 1;
839 /* Pop the scope stack */
841 if (acpi_ns_opens_scope(object_type
) &&
842 (op
->common
.aml_opcode
!= AML_INT_METHODCALL_OP
)) {
843 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
844 "(%s) Popping scope for Op %p\n",
845 acpi_ut_get_type_name(object_type
), op
));
847 status
= acpi_ds_scope_stack_pop(walk_state
);
848 if (ACPI_FAILURE(status
)) {
854 * Named operations are as follows:
859 * AML_CREATEBYTEFIELD
860 * AML_CREATEDWORDFIELD
862 * AML_CREATEQWORDFIELD
863 * AML_CREATEWORDFIELD
881 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
882 "Create-Load [%s] State=%p Op=%p NamedObj=%p\n",
883 acpi_ps_get_opcode_name(op
->common
.aml_opcode
),
884 walk_state
, op
, node
));
886 /* Decode the opcode */
888 arg
= op
->common
.value
.arg
;
890 switch (walk_state
->op_info
->type
) {
891 #ifndef ACPI_NO_METHOD_EXECUTION
893 case AML_TYPE_CREATE_FIELD
:
896 * Create the field object, but the field buffer and index must
897 * be evaluated later during the execution phase
899 status
= acpi_ds_create_buffer_field(op
, walk_state
);
902 case AML_TYPE_NAMED_FIELD
:
905 * If we are executing a method, initialize the field
907 if (walk_state
->method_node
) {
908 status
= acpi_ds_init_field_objects(op
, walk_state
);
911 switch (op
->common
.aml_opcode
) {
912 case AML_INDEX_FIELD_OP
:
915 acpi_ds_create_index_field(op
,
917 common
.node
, walk_state
);
920 case AML_BANK_FIELD_OP
:
923 acpi_ds_create_bank_field(op
, arg
->common
.node
,
930 acpi_ds_create_field(op
, arg
->common
.node
,
935 /* All NAMED_FIELD opcodes must be handled above */
940 case AML_TYPE_NAMED_SIMPLE
:
942 status
= acpi_ds_create_operands(walk_state
, arg
);
943 if (ACPI_FAILURE(status
)) {
947 switch (op
->common
.aml_opcode
) {
948 case AML_PROCESSOR_OP
:
950 status
= acpi_ex_create_processor(walk_state
);
953 case AML_POWER_RES_OP
:
955 status
= acpi_ex_create_power_resource(walk_state
);
960 status
= acpi_ex_create_mutex(walk_state
);
965 status
= acpi_ex_create_event(walk_state
);
968 case AML_DATA_REGION_OP
:
970 status
= acpi_ex_create_table_region(walk_state
);
975 status
= acpi_ex_create_alias(walk_state
);
985 /* Delete operands */
987 for (i
= 1; i
< walk_state
->num_operands
; i
++) {
988 acpi_ut_remove_reference(walk_state
->operands
[i
]);
989 walk_state
->operands
[i
] = NULL
;
993 #endif /* ACPI_NO_METHOD_EXECUTION */
995 case AML_TYPE_NAMED_COMPLEX
:
997 switch (op
->common
.aml_opcode
) {
998 #ifndef ACPI_NO_METHOD_EXECUTION
1002 * If we are executing a method, initialize the region
1004 if (walk_state
->method_node
) {
1006 acpi_ex_create_region(op
->named
.data
,
1008 (acpi_adr_space_type
)
1013 if (ACPI_FAILURE(status
)) {
1019 * The op_region is not fully parsed at this time. Only valid
1020 * argument is the space_id. (We must save the address of the
1021 * AML of the address and length operands)
1024 * If we have a valid region, initialize it
1025 * Namespace is NOT locked at this point.
1028 acpi_ev_initialize_region
1029 (acpi_ns_get_attached_object(node
), FALSE
);
1030 if (ACPI_FAILURE(status
)) {
1032 * If AE_NOT_EXIST is returned, it is not fatal
1033 * because many regions get created before a handler
1034 * is installed for said region.
1036 if (AE_NOT_EXIST
== status
) {
1044 status
= acpi_ds_create_node(walk_state
, node
, op
);
1049 * method_op pkg_length name_string method_flags term_list
1051 * Note: We must create the method node/object pair as soon as we
1052 * see the method declaration. This allows later pass1 parsing
1053 * of invocations of the method (need to know the number of
1056 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
1057 "LOADING-Method: State=%p Op=%p NamedObj=%p\n",
1058 walk_state
, op
, op
->named
.node
));
1060 if (!acpi_ns_get_attached_object(op
->named
.node
)) {
1061 walk_state
->operands
[0] =
1062 ACPI_CAST_PTR(void, op
->named
.node
);
1063 walk_state
->num_operands
= 1;
1066 acpi_ds_create_operands(walk_state
,
1069 if (ACPI_SUCCESS(status
)) {
1071 acpi_ex_create_method(op
->named
.
1077 walk_state
->operands
[0] = NULL
;
1078 walk_state
->num_operands
= 0;
1080 if (ACPI_FAILURE(status
)) {
1081 return_ACPI_STATUS(status
);
1086 #endif /* ACPI_NO_METHOD_EXECUTION */
1089 /* All NAMED_COMPLEX opcodes must be handled above */
1094 case AML_CLASS_INTERNAL
:
1096 /* case AML_INT_NAMEPATH_OP: */
1099 case AML_CLASS_METHOD_CALL
:
1101 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH
,
1102 "RESOLVING-MethodCall: State=%p Op=%p NamedObj=%p\n",
1103 walk_state
, op
, node
));
1106 * Lookup the method name and save the Node
1109 acpi_ns_lookup(walk_state
->scope_info
,
1110 arg
->common
.value
.string
, ACPI_TYPE_ANY
,
1111 ACPI_IMODE_LOAD_PASS2
,
1112 ACPI_NS_SEARCH_PARENT
|
1113 ACPI_NS_DONT_OPEN_SCOPE
, walk_state
,
1115 if (ACPI_SUCCESS(status
)) {
1117 * Make sure that what we found is indeed a method
1118 * We didn't search for a method on purpose, to see if the name
1121 if (new_node
->type
!= ACPI_TYPE_METHOD
) {
1122 status
= AE_AML_OPERAND_TYPE
;
1125 /* We could put the returned object (Node) on the object stack for
1126 * later, but for now, we will put it in the "op" object that the
1127 * parser uses, so we can get it again at the end of this scope
1129 op
->common
.node
= new_node
;
1131 ACPI_ERROR_NAMESPACE(arg
->common
.value
.string
, status
);
1141 /* Remove the Node pushed at the very beginning */
1143 walk_state
->operands
[0] = NULL
;
1144 walk_state
->num_operands
= 0;
1145 return_ACPI_STATUS(status
);