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