1 /******************************************************************************
2 *
3 * Module Name: dsobject - Dispatcher object management routines
4 *
5 *****************************************************************************/
6
7 /******************************************************************************
8 *
9 * 1. Copyright Notice
10 *
11 * Some or all of this work - Copyright (c) 1999 - 2018, Intel Corp.
12 * All rights reserved.
13 *
14 * 2. License
15 *
16 * 2.1. This is your license from Intel Corp. under its intellectual property
17 * rights. You may have additional license terms from the party that provided
18 * you this software, covering your right to use that party's intellectual
19 * property rights.
20 *
21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22 * copy of the source code appearing in this file ("Covered Code") an
23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24 * base code distributed originally by Intel ("Original Intel Code") to copy,
25 * make derivatives, distribute, use and display any portion of the Covered
26 * Code in any form, with the right to sublicense such rights; and
27 *
28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29 * license (with the right to sublicense), under only those claims of Intel
30 * patents that are infringed by the Original Intel Code, to make, use, sell,
31 * offer to sell, and import the Covered Code and derivative works thereof
32 * solely to the minimum extent necessary to exercise the above copyright
33 * license, and in no event shall the patent license extend to any additions
34 * to or modifications of the Original Intel Code. No other license or right
35 * is granted directly or by implication, estoppel or otherwise;
36 *
37 * The above copyright and patent license is granted only if the following
38 * conditions are met:
39 *
40 * 3. Conditions
41 *
42 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43 * Redistribution of source code of any substantial portion of the Covered
44 * Code or modification with rights to further distribute source must include
45 * the above Copyright Notice, the above License, this list of Conditions,
46 * and the following Disclaimer and Export Compliance provision. In addition,
47 * Licensee must cause all Covered Code to which Licensee contributes to
48 * contain a file documenting the changes Licensee made to create that Covered
49 * Code and the date of any change. Licensee must include in that file the
50 * documentation of any changes made by any predecessor Licensee. Licensee
51 * must include a prominent statement that the modification is derived,
52 * directly or indirectly, from Original Intel Code.
53 *
54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55 * Redistribution of source code of any substantial portion of the Covered
56 * Code or modification without rights to further distribute source must
57 * include the following Disclaimer and Export Compliance provision in the
58 * documentation and/or other materials provided with distribution. In
59 * addition, Licensee may not authorize further sublicense of source of any
60 * portion of the Covered Code, and must include terms to the effect that the
61 * license from Licensee to its licensee is limited to the intellectual
62 * property embodied in the software Licensee provides to its licensee, and
63 * not to intellectual property embodied in modifications its licensee may
64 * make.
65 *
66 * 3.3. Redistribution of Executable. Redistribution in executable form of any
67 * substantial portion of the Covered Code or modification must reproduce the
68 * above Copyright Notice, and the following Disclaimer and Export Compliance
69 * provision in the documentation and/or other materials provided with the
70 * distribution.
71 *
72 * 3.4. Intel retains all right, title, and interest in and to the Original
73 * Intel Code.
74 *
75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76 * Intel shall be used in advertising or otherwise to promote the sale, use or
77 * other dealings in products derived from or relating to the Covered Code
78 * without prior written authorization from Intel.
79 *
80 * 4. Disclaimer and Export Compliance
81 *
82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
88 * PARTICULAR PURPOSE.
89 *
90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
97 * LIMITED REMEDY.
98 *
99 * 4.3. Licensee shall not export, either directly or indirectly, any of this
100 * software or system incorporating such software without first obtaining any
101 * required license or other approval from the U. S. Department of Commerce or
102 * any other agency or department of the United States Government. In the
103 * event Licensee exports any such software from the United States or
104 * re-exports any such software from a foreign destination, Licensee shall
105 * ensure that the distribution and export/re-export of the software is in
106 * compliance with all laws, regulations, orders, or other restrictions of the
107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108 * any of its subsidiaries will export/re-export any technical data, process,
109 * software, or service, directly or indirectly, to any country for which the
110 * United States government or any agency thereof requires an export license,
111 * other governmental approval, or letter of assurance, without first obtaining
112 * such license, approval or letter.
113 *
114 *****************************************************************************
115 *
116 * Alternatively, you may choose to be licensed under the terms of the
117 * following license:
118 *
119 * Redistribution and use in source and binary forms, with or without
120 * modification, are permitted provided that the following conditions
121 * are met:
122 * 1. Redistributions of source code must retain the above copyright
123 * notice, this list of conditions, and the following disclaimer,
124 * without modification.
125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
126 * substantially similar to the "NO WARRANTY" disclaimer below
127 * ("Disclaimer") and any redistribution must be conditioned upon
128 * including a substantially similar Disclaimer requirement for further
129 * binary redistribution.
130 * 3. Neither the names of the above-listed copyright holders nor the names
131 * of any contributors may be used to endorse or promote products derived
132 * from this software without specific prior written permission.
133 *
134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
145 *
146 * Alternatively, you may choose to be licensed under the terms of the
147 * GNU General Public License ("GPL") version 2 as published by the Free
148 * Software Foundation.
149 *
150 *****************************************************************************/
151
152 #include "acpi.h"
153 #include "accommon.h"
154 #include "acparser.h"
155 #include "amlcode.h"
156 #include "acdispat.h"
157 #include "acnamesp.h"
158 #include "acinterp.h"
159
160 #define _COMPONENT ACPI_DISPATCHER
161 ACPI_MODULE_NAME ("dsobject")
162
163
164 #ifndef ACPI_NO_METHOD_EXECUTION
165 /*******************************************************************************
166 *
167 * FUNCTION: AcpiDsBuildInternalObject
168 *
169 * PARAMETERS: WalkState - Current walk state
170 * Op - Parser object to be translated
171 * ObjDescPtr - Where the ACPI internal object is returned
172 *
173 * RETURN: Status
174 *
175 * DESCRIPTION: Translate a parser Op object to the equivalent namespace object
176 * Simple objects are any objects other than a package object!
177 *
178 ******************************************************************************/
179
180 ACPI_STATUS
AcpiDsBuildInternalObject(ACPI_WALK_STATE * WalkState,ACPI_PARSE_OBJECT * Op,ACPI_OPERAND_OBJECT ** ObjDescPtr)181 AcpiDsBuildInternalObject (
182 ACPI_WALK_STATE *WalkState,
183 ACPI_PARSE_OBJECT *Op,
184 ACPI_OPERAND_OBJECT **ObjDescPtr)
185 {
186 ACPI_OPERAND_OBJECT *ObjDesc;
187 ACPI_STATUS Status;
188
189
190 ACPI_FUNCTION_TRACE (DsBuildInternalObject);
191
192
193 *ObjDescPtr = NULL;
194 if (Op->Common.AmlOpcode == AML_INT_NAMEPATH_OP)
195 {
196 /*
197 * This is a named object reference. If this name was
198 * previously looked up in the namespace, it was stored in
199 * this op. Otherwise, go ahead and look it up now
200 */
201 if (!Op->Common.Node)
202 {
203 /* Check if we are resolving a named reference within a package */
204
205 if ((Op->Common.Parent->Common.AmlOpcode == AML_PACKAGE_OP) ||
206 (Op->Common.Parent->Common.AmlOpcode == AML_VARIABLE_PACKAGE_OP))
207 {
208 /*
209 * We won't resolve package elements here, we will do this
210 * after all ACPI tables are loaded into the namespace. This
211 * behavior supports both forward references to named objects
212 * and external references to objects in other tables.
213 */
214 goto CreateNewObject;
215 }
216 else
217 {
218 Status = AcpiNsLookup (WalkState->ScopeInfo,
219 Op->Common.Value.String,
220 ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
221 ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, NULL,
222 ACPI_CAST_INDIRECT_PTR (
223 ACPI_NAMESPACE_NODE, &(Op->Common.Node)));
224 if (ACPI_FAILURE (Status))
225 {
226 ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo,
227 Op->Common.Value.String, Status);
228 return_ACPI_STATUS (Status);
229 }
230 }
231 }
232 }
233
234 CreateNewObject:
235
236 /* Create and init a new internal ACPI object */
237
238 ObjDesc = AcpiUtCreateInternalObject (
239 (AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode))->ObjectType);
240 if (!ObjDesc)
241 {
242 return_ACPI_STATUS (AE_NO_MEMORY);
243 }
244
245 Status = AcpiDsInitObjectFromOp (
246 WalkState, Op, Op->Common.AmlOpcode, &ObjDesc);
247 if (ACPI_FAILURE (Status))
248 {
249 AcpiUtRemoveReference (ObjDesc);
250 return_ACPI_STATUS (Status);
251 }
252
253 /*
254 * Handling for unresolved package reference elements.
255 * These are elements that are namepaths.
256 */
257 if ((Op->Common.Parent->Common.AmlOpcode == AML_PACKAGE_OP) ||
258 (Op->Common.Parent->Common.AmlOpcode == AML_VARIABLE_PACKAGE_OP))
259 {
260 ObjDesc->Reference.Resolved = TRUE;
261
262 if ((Op->Common.AmlOpcode == AML_INT_NAMEPATH_OP) &&
263 !ObjDesc->Reference.Node)
264 {
265 /*
266 * Name was unresolved above.
267 * Get the prefix node for later lookup
268 */
269 ObjDesc->Reference.Node = WalkState->ScopeInfo->Scope.Node;
270 ObjDesc->Reference.Aml = Op->Common.Aml;
271 ObjDesc->Reference.Resolved = FALSE;
272 }
273 }
274
275 *ObjDescPtr = ObjDesc;
276 return_ACPI_STATUS (Status);
277 }
278
279
280 /*******************************************************************************
281 *
282 * FUNCTION: AcpiDsBuildInternalBufferObj
283 *
284 * PARAMETERS: WalkState - Current walk state
285 * Op - Parser object to be translated
286 * BufferLength - Length of the buffer
287 * ObjDescPtr - Where the ACPI internal object is returned
288 *
289 * RETURN: Status
290 *
291 * DESCRIPTION: Translate a parser Op package object to the equivalent
292 * namespace object
293 *
294 ******************************************************************************/
295
296 ACPI_STATUS
AcpiDsBuildInternalBufferObj(ACPI_WALK_STATE * WalkState,ACPI_PARSE_OBJECT * Op,UINT32 BufferLength,ACPI_OPERAND_OBJECT ** ObjDescPtr)297 AcpiDsBuildInternalBufferObj (
298 ACPI_WALK_STATE *WalkState,
299 ACPI_PARSE_OBJECT *Op,
300 UINT32 BufferLength,
301 ACPI_OPERAND_OBJECT **ObjDescPtr)
302 {
303 ACPI_PARSE_OBJECT *Arg;
304 ACPI_OPERAND_OBJECT *ObjDesc;
305 ACPI_PARSE_OBJECT *ByteList;
306 UINT32 ByteListLength = 0;
307
308
309 ACPI_FUNCTION_TRACE (DsBuildInternalBufferObj);
310
311
312 /*
313 * If we are evaluating a Named buffer object "Name (xxxx, Buffer)".
314 * The buffer object already exists (from the NS node), otherwise it must
315 * be created.
316 */
317 ObjDesc = *ObjDescPtr;
318 if (!ObjDesc)
319 {
320 /* Create a new buffer object */
321
322 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_BUFFER);
323 *ObjDescPtr = ObjDesc;
324 if (!ObjDesc)
325 {
326 return_ACPI_STATUS (AE_NO_MEMORY);
327 }
328 }
329
330 /*
331 * Second arg is the buffer data (optional) ByteList can be either
332 * individual bytes or a string initializer. In either case, a
333 * ByteList appears in the AML.
334 */
335 Arg = Op->Common.Value.Arg; /* skip first arg */
336
337 ByteList = Arg->Named.Next;
338 if (ByteList)
339 {
340 if (ByteList->Common.AmlOpcode != AML_INT_BYTELIST_OP)
341 {
342 ACPI_ERROR ((AE_INFO,
343 "Expecting bytelist, found AML opcode 0x%X in op %p",
344 ByteList->Common.AmlOpcode, ByteList));
345
346 AcpiUtRemoveReference (ObjDesc);
347 return (AE_TYPE);
348 }
349
350 ByteListLength = (UINT32) ByteList->Common.Value.Integer;
351 }
352
353 /*
354 * The buffer length (number of bytes) will be the larger of:
355 * 1) The specified buffer length and
356 * 2) The length of the initializer byte list
357 */
358 ObjDesc->Buffer.Length = BufferLength;
359 if (ByteListLength > BufferLength)
360 {
361 ObjDesc->Buffer.Length = ByteListLength;
362 }
363
364 /* Allocate the buffer */
365
366 if (ObjDesc->Buffer.Length == 0)
367 {
368 ObjDesc->Buffer.Pointer = NULL;
369 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
370 "Buffer defined with zero length in AML, creating\n"));
371 }
372 else
373 {
374 ObjDesc->Buffer.Pointer =
375 ACPI_ALLOCATE_ZEROED (ObjDesc->Buffer.Length);
376 if (!ObjDesc->Buffer.Pointer)
377 {
378 AcpiUtDeleteObjectDesc (ObjDesc);
379 return_ACPI_STATUS (AE_NO_MEMORY);
380 }
381
382 /* Initialize buffer from the ByteList (if present) */
383
384 if (ByteList)
385 {
386 memcpy (ObjDesc->Buffer.Pointer, ByteList->Named.Data,
387 ByteListLength);
388 }
389 }
390
391 ObjDesc->Buffer.Flags |= AOPOBJ_DATA_VALID;
392 Op->Common.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjDesc);
393 return_ACPI_STATUS (AE_OK);
394 }
395
396 /*******************************************************************************
397 *
398 * FUNCTION: AcpiDsCreateNode
399 *
400 * PARAMETERS: WalkState - Current walk state
401 * Node - NS Node to be initialized
402 * Op - Parser object to be translated
403 *
404 * RETURN: Status
405 *
406 * DESCRIPTION: Create the object to be associated with a namespace node
407 *
408 ******************************************************************************/
409
410 ACPI_STATUS
AcpiDsCreateNode(ACPI_WALK_STATE * WalkState,ACPI_NAMESPACE_NODE * Node,ACPI_PARSE_OBJECT * Op)411 AcpiDsCreateNode (
412 ACPI_WALK_STATE *WalkState,
413 ACPI_NAMESPACE_NODE *Node,
414 ACPI_PARSE_OBJECT *Op)
415 {
416 ACPI_STATUS Status;
417 ACPI_OPERAND_OBJECT *ObjDesc;
418
419
420 ACPI_FUNCTION_TRACE_PTR (DsCreateNode, Op);
421
422
423 /*
424 * Because of the execution pass through the non-control-method
425 * parts of the table, we can arrive here twice. Only init
426 * the named object node the first time through
427 */
428 if (AcpiNsGetAttachedObject (Node))
429 {
430 return_ACPI_STATUS (AE_OK);
431 }
432
433 if (!Op->Common.Value.Arg)
434 {
435 /* No arguments, there is nothing to do */
436
437 return_ACPI_STATUS (AE_OK);
438 }
439
440 /* Build an internal object for the argument(s) */
441
442 Status = AcpiDsBuildInternalObject (
443 WalkState, Op->Common.Value.Arg, &ObjDesc);
444 if (ACPI_FAILURE (Status))
445 {
446 return_ACPI_STATUS (Status);
447 }
448
449 /* Re-type the object according to its argument */
450
451 Node->Type = ObjDesc->Common.Type;
452
453 /* Attach obj to node */
454
455 Status = AcpiNsAttachObject (Node, ObjDesc, Node->Type);
456
457 /* Remove local reference to the object */
458
459 AcpiUtRemoveReference (ObjDesc);
460 return_ACPI_STATUS (Status);
461 }
462
463 #endif /* ACPI_NO_METHOD_EXECUTION */
464
465
466 /*******************************************************************************
467 *
468 * FUNCTION: AcpiDsInitObjectFromOp
469 *
470 * PARAMETERS: WalkState - Current walk state
471 * Op - Parser op used to init the internal object
472 * Opcode - AML opcode associated with the object
473 * RetObjDesc - Namespace object to be initialized
474 *
475 * RETURN: Status
476 *
477 * DESCRIPTION: Initialize a namespace object from a parser Op and its
478 * associated arguments. The namespace object is a more compact
479 * representation of the Op and its arguments.
480 *
481 ******************************************************************************/
482
483 ACPI_STATUS
AcpiDsInitObjectFromOp(ACPI_WALK_STATE * WalkState,ACPI_PARSE_OBJECT * Op,UINT16 Opcode,ACPI_OPERAND_OBJECT ** RetObjDesc)484 AcpiDsInitObjectFromOp (
485 ACPI_WALK_STATE *WalkState,
486 ACPI_PARSE_OBJECT *Op,
487 UINT16 Opcode,
488 ACPI_OPERAND_OBJECT **RetObjDesc)
489 {
490 const ACPI_OPCODE_INFO *OpInfo;
491 ACPI_OPERAND_OBJECT *ObjDesc;
492 ACPI_STATUS Status = AE_OK;
493
494
495 ACPI_FUNCTION_TRACE (DsInitObjectFromOp);
496
497
498 ObjDesc = *RetObjDesc;
499 OpInfo = AcpiPsGetOpcodeInfo (Opcode);
500 if (OpInfo->Class == AML_CLASS_UNKNOWN)
501 {
502 /* Unknown opcode */
503
504 return_ACPI_STATUS (AE_TYPE);
505 }
506
507 /* Perform per-object initialization */
508
509 switch (ObjDesc->Common.Type)
510 {
511 case ACPI_TYPE_BUFFER:
512 /*
513 * Defer evaluation of Buffer TermArg operand
514 */
515 ObjDesc->Buffer.Node = ACPI_CAST_PTR (
516 ACPI_NAMESPACE_NODE, WalkState->Operands[0]);
517 ObjDesc->Buffer.AmlStart = Op->Named.Data;
518 ObjDesc->Buffer.AmlLength = Op->Named.Length;
519 break;
520
521 case ACPI_TYPE_PACKAGE:
522 /*
523 * Defer evaluation of Package TermArg operand and all
524 * package elements. (01/2017): We defer the element
525 * resolution to allow forward references from the package
526 * in order to provide compatibility with other ACPI
527 * implementations.
528 */
529 ObjDesc->Package.Node = ACPI_CAST_PTR (
530 ACPI_NAMESPACE_NODE, WalkState->Operands[0]);
531
532 if (!Op->Named.Data)
533 {
534 return_ACPI_STATUS (AE_OK);
535 }
536
537 ObjDesc->Package.AmlStart = Op->Named.Data;
538 ObjDesc->Package.AmlLength = Op->Named.Length;
539 break;
540
541 case ACPI_TYPE_INTEGER:
542
543 switch (OpInfo->Type)
544 {
545 case AML_TYPE_CONSTANT:
546 /*
547 * Resolve AML Constants here - AND ONLY HERE!
548 * All constants are integers.
549 * We mark the integer with a flag that indicates that it started
550 * life as a constant -- so that stores to constants will perform
551 * as expected (noop). ZeroOp is used as a placeholder for optional
552 * target operands.
553 */
554 ObjDesc->Common.Flags = AOPOBJ_AML_CONSTANT;
555
556 switch (Opcode)
557 {
558 case AML_ZERO_OP:
559
560 ObjDesc->Integer.Value = 0;
561 break;
562
563 case AML_ONE_OP:
564
565 ObjDesc->Integer.Value = 1;
566 break;
567
568 case AML_ONES_OP:
569
570 ObjDesc->Integer.Value = ACPI_UINT64_MAX;
571
572 /* Truncate value if we are executing from a 32-bit ACPI table */
573
574 #ifndef ACPI_NO_METHOD_EXECUTION
575 (void) AcpiExTruncateFor32bitTable (ObjDesc);
576 #endif
577 break;
578
579 case AML_REVISION_OP:
580
581 ObjDesc->Integer.Value = ACPI_CA_VERSION;
582 break;
583
584 default:
585
586 ACPI_ERROR ((AE_INFO,
587 "Unknown constant opcode 0x%X", Opcode));
588 Status = AE_AML_OPERAND_TYPE;
589 break;
590 }
591 break;
592
593 case AML_TYPE_LITERAL:
594
595 ObjDesc->Integer.Value = Op->Common.Value.Integer;
596
597 #ifndef ACPI_NO_METHOD_EXECUTION
598 if (AcpiExTruncateFor32bitTable (ObjDesc))
599 {
600 /* Warn if we found a 64-bit constant in a 32-bit table */
601
602 ACPI_WARNING ((AE_INFO,
603 "Truncated 64-bit constant found in 32-bit table: %8.8X%8.8X => %8.8X",
604 ACPI_FORMAT_UINT64 (Op->Common.Value.Integer),
605 (UINT32) ObjDesc->Integer.Value));
606 }
607 #endif
608 break;
609
610 default:
611
612 ACPI_ERROR ((AE_INFO, "Unknown Integer type 0x%X",
613 OpInfo->Type));
614 Status = AE_AML_OPERAND_TYPE;
615 break;
616 }
617 break;
618
619 case ACPI_TYPE_STRING:
620
621 ObjDesc->String.Pointer = Op->Common.Value.String;
622 ObjDesc->String.Length = (UINT32) strlen (Op->Common.Value.String);
623
624 /*
625 * The string is contained in the ACPI table, don't ever try
626 * to delete it
627 */
628 ObjDesc->Common.Flags |= AOPOBJ_STATIC_POINTER;
629 break;
630
631 case ACPI_TYPE_METHOD:
632 break;
633
634 case ACPI_TYPE_LOCAL_REFERENCE:
635
636 switch (OpInfo->Type)
637 {
638 case AML_TYPE_LOCAL_VARIABLE:
639
640 /* Local ID (0-7) is (AML opcode - base AML_FIRST_LOCAL_OP) */
641
642 ObjDesc->Reference.Value = ((UINT32) Opcode) - AML_FIRST_LOCAL_OP;
643 ObjDesc->Reference.Class = ACPI_REFCLASS_LOCAL;
644
645 #ifndef ACPI_NO_METHOD_EXECUTION
646 Status = AcpiDsMethodDataGetNode (ACPI_REFCLASS_LOCAL,
647 ObjDesc->Reference.Value, WalkState,
648 ACPI_CAST_INDIRECT_PTR (ACPI_NAMESPACE_NODE,
649 &ObjDesc->Reference.Object));
650 #endif
651 break;
652
653 case AML_TYPE_METHOD_ARGUMENT:
654
655 /* Arg ID (0-6) is (AML opcode - base AML_FIRST_ARG_OP) */
656
657 ObjDesc->Reference.Value = ((UINT32) Opcode) - AML_FIRST_ARG_OP;
658 ObjDesc->Reference.Class = ACPI_REFCLASS_ARG;
659
660 #ifndef ACPI_NO_METHOD_EXECUTION
661 Status = AcpiDsMethodDataGetNode (ACPI_REFCLASS_ARG,
662 ObjDesc->Reference.Value, WalkState,
663 ACPI_CAST_INDIRECT_PTR (ACPI_NAMESPACE_NODE,
664 &ObjDesc->Reference.Object));
665 #endif
666 break;
667
668 default: /* Object name or Debug object */
669
670 switch (Op->Common.AmlOpcode)
671 {
672 case AML_INT_NAMEPATH_OP:
673
674 /* Node was saved in Op */
675
676 ObjDesc->Reference.Node = Op->Common.Node;
677 ObjDesc->Reference.Class = ACPI_REFCLASS_NAME;
678 if (Op->Common.Node)
679 {
680 ObjDesc->Reference.Object = Op->Common.Node->Object;
681 }
682 break;
683
684 case AML_DEBUG_OP:
685
686 ObjDesc->Reference.Class = ACPI_REFCLASS_DEBUG;
687 break;
688
689 default:
690
691 ACPI_ERROR ((AE_INFO,
692 "Unimplemented reference type for AML opcode: 0x%4.4X", Opcode));
693 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
694 }
695 break;
696 }
697 break;
698
699 default:
700
701 ACPI_ERROR ((AE_INFO, "Unimplemented data type: 0x%X",
702 ObjDesc->Common.Type));
703
704 Status = AE_AML_OPERAND_TYPE;
705 break;
706 }
707
708 return_ACPI_STATUS (Status);
709 }
710