1/******************************************************************************
2 *
3 * Module Name: excreate - Named object creation
4 * $Revision: 89 $
5 *
6 *****************************************************************************/
7
8/******************************************************************************
9 *
10 * 1. Copyright Notice
11 *
12 * Some or all of this work - Copyright (c) 1999 - 2002, Intel Corp.
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
88 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
89 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
90 * PARTICULAR PURPOSE.
91 *
92 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
93 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
94 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
95 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
96 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
97 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
98 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
99 * LIMITED REMEDY.
100 *
101 * 4.3. Licensee shall not export, either directly or indirectly, any of this
102 * software or system incorporating such software without first obtaining any
103 * required license or other approval from the U. S. Department of Commerce or
104 * any other agency or department of the United States Government. In the
105 * event Licensee exports any such software from the United States or
106 * re-exports any such software from a foreign destination, Licensee shall
107 * ensure that the distribution and export/re-export of the software is in
108 * compliance with all laws, regulations, orders, or other restrictions of the
109 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
110 * any of its subsidiaries will export/re-export any technical data, process,
111 * software, or service, directly or indirectly, to any country for which the
112 * United States government or any agency thereof requires an export license,
113 * other governmental approval, or letter of assurance, without first obtaining
114 * such license, approval or letter.
115 *
116 *****************************************************************************/
117
118#define __EXCREATE_C__
119
120#include "acpi.h"
121#include "acparser.h"
122#include "acinterp.h"
123#include "amlcode.h"
124#include "acnamesp.h"
125#include "acevents.h"
126#include "acdispat.h"
127#include "actables.h"
128
129
130#define _COMPONENT ACPI_EXECUTER
131 ACPI_MODULE_NAME ("excreate")
132
133
134/*****************************************************************************
135 *
136 * FUNCTION: AcpiExCreateAlias
137 *
138 * PARAMETERS: WalkState - Current state, contains List of
139 * operands for the opcode
140 *
141 * RETURN: Status
142 *
143 * DESCRIPTION: Create a new named alias
144 *
145 ****************************************************************************/
146
147ACPI_STATUS
148AcpiExCreateAlias (
149 ACPI_WALK_STATE *WalkState)
150{
151 ACPI_NAMESPACE_NODE *SourceNode;
152 ACPI_STATUS Status;
153
154
155 ACPI_FUNCTION_TRACE ("ExCreateAlias");
156
157
158 /* Get the source/alias operands (both namespace nodes) */
159
160 SourceNode = (ACPI_NAMESPACE_NODE *) WalkState->Operands[1];
161
162
163 /* Attach the original source object to the new Alias Node */
164
165 Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) WalkState->Operands[0],
166 AcpiNsGetAttachedObject (SourceNode),
167 SourceNode->Type);
168
169 /*
170 * The new alias assumes the type of the source, but it points
171 * to the same object. The reference count of the object has an
172 * additional reference to prevent deletion out from under either the
173 * source or the alias Node
174 */
175
176 /* Since both operands are Nodes, we don't need to delete them */
177
178 return_ACPI_STATUS (Status);
179}
180
181
182/*****************************************************************************
183 *
184 * FUNCTION: AcpiExCreateEvent
185 *
186 * PARAMETERS: WalkState - Current state
187 *
188 * RETURN: Status
189 *
190 * DESCRIPTION: Create a new event object
191 *
192 ****************************************************************************/
193
194ACPI_STATUS
195AcpiExCreateEvent (
196 ACPI_WALK_STATE *WalkState)
197{
198 ACPI_STATUS Status;
199 ACPI_OPERAND_OBJECT *ObjDesc;
200
201
202 ACPI_FUNCTION_TRACE ("ExCreateEvent");
203
204
205 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_EVENT);
206 if (!ObjDesc)
207 {
208 Status = AE_NO_MEMORY;
209 goto Cleanup;
210 }
211
212 /*
213 * Create the actual OS semaphore, with zero initial units -- meaning
214 * that the event is created in an unsignalled state
215 */
216 Status = AcpiOsCreateSemaphore (ACPI_NO_UNIT_LIMIT, 0,
217 &ObjDesc->Event.Semaphore);
218 if (ACPI_FAILURE (Status))
219 {
220 goto Cleanup;
221 }
222
223 /* Attach object to the Node */
224
225 Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) WalkState->Operands[0],
226 ObjDesc, ACPI_TYPE_EVENT);
227
228Cleanup:
229 /*
230 * Remove local reference to the object (on error, will cause deletion
231 * of both object and semaphore if present.)
232 */
233 AcpiUtRemoveReference (ObjDesc);
234 return_ACPI_STATUS (Status);
235}
236
237
238/*****************************************************************************
239 *
240 * FUNCTION: AcpiExCreateMutex
241 *
242 * PARAMETERS: WalkState - Current state
243 *
244 * RETURN: Status
245 *
246 * DESCRIPTION: Create a new mutex object
247 *
248 * Mutex (Name[0], SyncLevel[1])
249 *
250 ****************************************************************************/
251
252ACPI_STATUS
253AcpiExCreateMutex (
254 ACPI_WALK_STATE *WalkState)
255{
256 ACPI_STATUS Status = AE_OK;
257 ACPI_OPERAND_OBJECT *ObjDesc;
258
259
260 ACPI_FUNCTION_TRACE_PTR ("ExCreateMutex", ACPI_WALK_OPERANDS);
261
262
263 /* Create the new mutex object */
264
265 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_MUTEX);
266 if (!ObjDesc)
267 {
268 Status = AE_NO_MEMORY;
269 goto Cleanup;
270 }
271
272 /*
273 * Create the actual OS semaphore.
274 * One unit max to make it a mutex, with one initial unit to allow
275 * the mutex to be acquired.
276 */
277 Status = AcpiOsCreateSemaphore (1, 1, &ObjDesc->Mutex.Semaphore);
278 if (ACPI_FAILURE (Status))
279 {
280 goto Cleanup;
281 }
282
283 /* Init object and attach to NS node */
284
285 ObjDesc->Mutex.SyncLevel = (UINT8) WalkState->Operands[1]->Integer.Value;
286
287 Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) WalkState->Operands[0],
288 ObjDesc, ACPI_TYPE_MUTEX);
289
290
291Cleanup:
292 /*
293 * Remove local reference to the object (on error, will cause deletion
294 * of both object and semaphore if present.)
295 */
296 AcpiUtRemoveReference (ObjDesc);
297 return_ACPI_STATUS (Status);
298}
299
300
301/*****************************************************************************
302 *
303 * FUNCTION: AcpiExCreateRegion
304 *
305 * PARAMETERS: AmlStart - Pointer to the region declaration AML
306 * AmlLength - Max length of the declaration AML
307 * Operands - List of operands for the opcode
308 * WalkState - Current state
309 *
310 * RETURN: Status
311 *
312 * DESCRIPTION: Create a new operation region object
313 *
314 ****************************************************************************/
315
316ACPI_STATUS
317AcpiExCreateRegion (
318 UINT8 *AmlStart,
319 UINT32 AmlLength,
320 UINT8 RegionSpace,
321 ACPI_WALK_STATE *WalkState)
322{
323 ACPI_STATUS Status;
324 ACPI_OPERAND_OBJECT *ObjDesc;
325 ACPI_NAMESPACE_NODE *Node;
326 ACPI_OPERAND_OBJECT *RegionObj2;
327
328
329 ACPI_FUNCTION_TRACE ("ExCreateRegion");
330
331
332 /* Get the Node from the object stack */
333
334 Node = WalkState->Op->Node;
335
336 /*
337 * If the region object is already attached to this node,
338 * just return
339 */
340 if (AcpiNsGetAttachedObject (Node))
341 {
342 return_ACPI_STATUS (AE_OK);
343 }
344
345 /*
346 * Space ID must be one of the predefined IDs, or in the user-defined
347 * range
348 */
349 if ((RegionSpace >= ACPI_NUM_PREDEFINED_REGIONS) &&
350 (RegionSpace < ACPI_USER_REGION_BEGIN))
351 {
352 ACPI_REPORT_ERROR (("Invalid AddressSpace type %X\n", RegionSpace));
353 return_ACPI_STATUS (AE_AML_INVALID_SPACE_ID);
354 }
355
356 ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "Region Type - %s (%X)\n",
357 AcpiUtGetRegionName (RegionSpace), RegionSpace));
358
359
360 /* Create the region descriptor */
361
362 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_REGION);
363 if (!ObjDesc)
364 {
365 Status = AE_NO_MEMORY;
366 goto Cleanup;
367 }
368
369 /*
370 * Remember location in AML stream of address & length
371 * operands since they need to be evaluated at run time.
372 */
373 RegionObj2 = ObjDesc->Common.NextObject;
374 RegionObj2->Extra.AmlStart = AmlStart;
375 RegionObj2->Extra.AmlLength = AmlLength;
376
377 /* Init the region from the operands */
378
379 ObjDesc->Region.SpaceId = RegionSpace;
380 ObjDesc->Region.Address = 0;
381 ObjDesc->Region.Length = 0;
382 ObjDesc->Region.Node = Node;
383
384 /* Install the new region object in the parent Node */
385
386 Status = AcpiNsAttachObject (Node, ObjDesc, ACPI_TYPE_REGION);
387
388
389Cleanup:
390
391 /* Remove local reference to the object */
392
393 AcpiUtRemoveReference (ObjDesc);
394 return_ACPI_STATUS (Status);
395}
396
397
398/*****************************************************************************
399 *
400 * FUNCTION: AcpiExCreateTableRegion
401 *
402 * PARAMETERS: WalkState - Current state
403 *
404 * RETURN: Status
405 *
406 * DESCRIPTION: Create a new DataTableRegion object
407 *
408 ****************************************************************************/
409
410ACPI_STATUS
411AcpiExCreateTableRegion (
412 ACPI_WALK_STATE *WalkState)
413{
414 ACPI_STATUS Status;
415 ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
416 ACPI_OPERAND_OBJECT *ObjDesc;
417 ACPI_NAMESPACE_NODE *Node;
418 ACPI_TABLE_HEADER *Table;
419 ACPI_OPERAND_OBJECT *RegionObj2;
420
421
422 ACPI_FUNCTION_TRACE ("ExCreateTableRegion");
423
424 /* Get the Node from the object stack */
425
426 Node = WalkState->Op->Node;
427
428 /*
429 * If the region object is already attached to this node,
430 * just return
431 */
432 if (AcpiNsGetAttachedObject (Node))
433 {
434 return_ACPI_STATUS (AE_OK);
435 }
436
437 /* Find the ACPI table */
438
439 Status = AcpiTbFindTable (Operand[1]->String.Pointer,
440 Operand[2]->String.Pointer,
441 Operand[3]->String.Pointer, &Table);
442
443 if (ACPI_FAILURE (Status))
444 {
445 return_ACPI_STATUS (Status);
446 }
447
448 /* Create the region descriptor */
449
450 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_REGION);
451 if (!ObjDesc)
452 {
453 return_ACPI_STATUS (AE_NO_MEMORY);
454 }
455
456 RegionObj2 = ObjDesc->Common.NextObject;
457 RegionObj2->Extra.RegionContext = NULL;
458
459 /* Init the region from the operands */
460
461 ObjDesc->Region.SpaceId = REGION_DATA_TABLE;
462 ObjDesc->Region.Address = (ACPI_PHYSICAL_ADDRESS) ACPI_TO_INTEGER (Table);
463 ObjDesc->Region.Length = Table->Length;
464 ObjDesc->Region.Node = Node;
465 ObjDesc->Region.Flags = AOPOBJ_DATA_VALID;
466
467 /* Install the new region object in the parent Node */
468
469 Status = AcpiNsAttachObject (Node, ObjDesc, ACPI_TYPE_REGION);
470 if (ACPI_FAILURE (Status))
471 {
472 goto Cleanup;
473 }
474
475 Status = AcpiEvInitializeRegion (ObjDesc, FALSE);
476 if (ACPI_FAILURE (Status))
477 {
478 if (Status == AE_NOT_EXIST)
479 {
480 Status = AE_OK;
481 }
482 else
483 {
484 goto Cleanup;
485 }
486 }
487
488 ObjDesc->Region.Flags |= AOPOBJ_SETUP_COMPLETE;
489
490
491Cleanup:
492
493 /* Remove local reference to the object */
494
495 AcpiUtRemoveReference (ObjDesc);
496 return_ACPI_STATUS (Status);
497}
498
499
500/*****************************************************************************
501 *
502 * FUNCTION: AcpiExCreateProcessor
503 *
504 * PARAMETERS: Op - Op containing the Processor definition and
505 * args
506 * ProcessorNode - Parent Node for the processor object
507 *
508 * RETURN: Status
509 *
510 * DESCRIPTION: Create a new processor object and populate the fields
511 *
512 * Processor (Name[0], CpuID[1], PblockAddr[2], PblockLength[3])
513 *
514 ****************************************************************************/
515
516ACPI_STATUS
517AcpiExCreateProcessor (
518 ACPI_WALK_STATE *WalkState)
519{
520 ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
521 ACPI_OPERAND_OBJECT *ObjDesc;
522 ACPI_STATUS Status;
523
524
525 ACPI_FUNCTION_TRACE_PTR ("ExCreateProcessor", WalkState);
526
527
528 /* Create the processor object */
529
530 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_PROCESSOR);
531 if (!ObjDesc)
532 {
533 return_ACPI_STATUS (AE_NO_MEMORY);
534 }
535
536 /*
537 * Initialize the processor object from the operands
538 */
539 ObjDesc->Processor.ProcId = (UINT8) Operand[1]->Integer.Value;
540 ObjDesc->Processor.Address = (ACPI_IO_ADDRESS) Operand[2]->Integer.Value;
541 ObjDesc->Processor.Length = (UINT8) Operand[3]->Integer.Value;
542
543 /* Install the processor object in the parent Node */
544
545 Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) Operand[0],
546 ObjDesc, ACPI_TYPE_PROCESSOR);
547
548
549 /* Remove local reference to the object */
550
551 AcpiUtRemoveReference (ObjDesc);
552 return_ACPI_STATUS (Status);
553}
554
555
556/*****************************************************************************
557 *
558 * FUNCTION: AcpiExCreatePowerResource
559 *
560 * PARAMETERS: Op - Op containing the PowerResource definition
561 * and args
562 * PowerNode - Parent Node for the power object
563 *
564 * RETURN: Status
565 *
566 * DESCRIPTION: Create a new PowerResource object and populate the fields
567 *
568 * PowerResource (Name[0], SystemLevel[1], ResourceOrder[2])
569 *
570 ****************************************************************************/
571
572ACPI_STATUS
573AcpiExCreatePowerResource (
574 ACPI_WALK_STATE *WalkState)
575{
576 ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
577 ACPI_STATUS Status;
578 ACPI_OPERAND_OBJECT *ObjDesc;
579
580
581 ACPI_FUNCTION_TRACE_PTR ("ExCreatePowerResource", WalkState);
582
583
584 /* Create the power resource object */
585
586 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_POWER);
587 if (!ObjDesc)
588 {
589 return_ACPI_STATUS (AE_NO_MEMORY);
590 }
591
592 /* Initialize the power object from the operands */
593
594 ObjDesc->PowerResource.SystemLevel = (UINT8) Operand[1]->Integer.Value;
595 ObjDesc->PowerResource.ResourceOrder = (UINT16) Operand[2]->Integer.Value;
596
597 /* Install the power resource object in the parent Node */
598
599 Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) Operand[0],
600 ObjDesc, ACPI_TYPE_POWER);
601
602
603 /* Remove local reference to the object */
604
605 AcpiUtRemoveReference (ObjDesc);
606 return_ACPI_STATUS (Status);
607}
608
609
610/*****************************************************************************
611 *
612 * FUNCTION: AcpiExCreateMethod
613 *
614 * PARAMETERS: AmlStart - First byte of the method's AML
615 * AmlLength - AML byte count for this method
616 * MethodFlags - AML method flag byte
617 * Method - Method Node
618 *
619 * RETURN: Status
620 *
621 * DESCRIPTION: Create a new method object
622 *
623 ****************************************************************************/
624
625ACPI_STATUS
626AcpiExCreateMethod (
627 UINT8 *AmlStart,
628 UINT32 AmlLength,
629 ACPI_WALK_STATE *WalkState)
630{
631 ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
632 ACPI_OPERAND_OBJECT *ObjDesc;
633 ACPI_STATUS Status;
634 UINT8 MethodFlags;
635
636
637 ACPI_FUNCTION_TRACE_PTR ("ExCreateMethod", WalkState);
638
639
640 /* Create a new method object */
641
642 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_METHOD);
643 if (!ObjDesc)
644 {
645 return_ACPI_STATUS (AE_NO_MEMORY);
646 }
647
648 /* Save the method's AML pointer and length */
649
650 ObjDesc->Method.AmlStart = AmlStart;
651 ObjDesc->Method.AmlLength = AmlLength;
652
653 /* disassemble the method flags */
654
655 MethodFlags = (UINT8) Operand[1]->Integer.Value;
656
657 ObjDesc->Method.MethodFlags = MethodFlags;
658 ObjDesc->Method.ParamCount = (UINT8) (MethodFlags & METHOD_FLAGS_ARG_COUNT);
659
660 /*
661 * Get the concurrency count. If required, a semaphore will be
662 * created for this method when it is parsed.
663 */
664 if (MethodFlags & METHOD_FLAGS_SERIALIZED)
665 {
666 /*
667 * ACPI 1.0: Concurrency = 1
668 * ACPI 2.0: Concurrency = (SyncLevel (in method declaration) + 1)
669 */
670 ObjDesc->Method.Concurrency = (UINT8)
671 (((MethodFlags & METHOD_FLAGS_SYNCH_LEVEL) >> 4) + 1);
672 }
673
674 else
675 {
676 ObjDesc->Method.Concurrency = INFINITE_CONCURRENCY;
677 }
678
679 /* Attach the new object to the method Node */
680
681 Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) Operand[0],
682 ObjDesc, ACPI_TYPE_METHOD);
683
684 /* Remove local reference to the object */
685
686 AcpiUtRemoveReference (ObjDesc);
687
688 /* Remove a reference to the operand */
689
690 AcpiUtRemoveReference (Operand[1]);
691 return_ACPI_STATUS (Status);
692}
693
694
2 *
3 * Module Name: excreate - Named object creation
4 * $Revision: 89 $
5 *
6 *****************************************************************************/
7
8/******************************************************************************
9 *
10 * 1. Copyright Notice
11 *
12 * Some or all of this work - Copyright (c) 1999 - 2002, Intel Corp.
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
88 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
89 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
90 * PARTICULAR PURPOSE.
91 *
92 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
93 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
94 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
95 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
96 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
97 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
98 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
99 * LIMITED REMEDY.
100 *
101 * 4.3. Licensee shall not export, either directly or indirectly, any of this
102 * software or system incorporating such software without first obtaining any
103 * required license or other approval from the U. S. Department of Commerce or
104 * any other agency or department of the United States Government. In the
105 * event Licensee exports any such software from the United States or
106 * re-exports any such software from a foreign destination, Licensee shall
107 * ensure that the distribution and export/re-export of the software is in
108 * compliance with all laws, regulations, orders, or other restrictions of the
109 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
110 * any of its subsidiaries will export/re-export any technical data, process,
111 * software, or service, directly or indirectly, to any country for which the
112 * United States government or any agency thereof requires an export license,
113 * other governmental approval, or letter of assurance, without first obtaining
114 * such license, approval or letter.
115 *
116 *****************************************************************************/
117
118#define __EXCREATE_C__
119
120#include "acpi.h"
121#include "acparser.h"
122#include "acinterp.h"
123#include "amlcode.h"
124#include "acnamesp.h"
125#include "acevents.h"
126#include "acdispat.h"
127#include "actables.h"
128
129
130#define _COMPONENT ACPI_EXECUTER
131 ACPI_MODULE_NAME ("excreate")
132
133
134/*****************************************************************************
135 *
136 * FUNCTION: AcpiExCreateAlias
137 *
138 * PARAMETERS: WalkState - Current state, contains List of
139 * operands for the opcode
140 *
141 * RETURN: Status
142 *
143 * DESCRIPTION: Create a new named alias
144 *
145 ****************************************************************************/
146
147ACPI_STATUS
148AcpiExCreateAlias (
149 ACPI_WALK_STATE *WalkState)
150{
151 ACPI_NAMESPACE_NODE *SourceNode;
152 ACPI_STATUS Status;
153
154
155 ACPI_FUNCTION_TRACE ("ExCreateAlias");
156
157
158 /* Get the source/alias operands (both namespace nodes) */
159
160 SourceNode = (ACPI_NAMESPACE_NODE *) WalkState->Operands[1];
161
162
163 /* Attach the original source object to the new Alias Node */
164
165 Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) WalkState->Operands[0],
166 AcpiNsGetAttachedObject (SourceNode),
167 SourceNode->Type);
168
169 /*
170 * The new alias assumes the type of the source, but it points
171 * to the same object. The reference count of the object has an
172 * additional reference to prevent deletion out from under either the
173 * source or the alias Node
174 */
175
176 /* Since both operands are Nodes, we don't need to delete them */
177
178 return_ACPI_STATUS (Status);
179}
180
181
182/*****************************************************************************
183 *
184 * FUNCTION: AcpiExCreateEvent
185 *
186 * PARAMETERS: WalkState - Current state
187 *
188 * RETURN: Status
189 *
190 * DESCRIPTION: Create a new event object
191 *
192 ****************************************************************************/
193
194ACPI_STATUS
195AcpiExCreateEvent (
196 ACPI_WALK_STATE *WalkState)
197{
198 ACPI_STATUS Status;
199 ACPI_OPERAND_OBJECT *ObjDesc;
200
201
202 ACPI_FUNCTION_TRACE ("ExCreateEvent");
203
204
205 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_EVENT);
206 if (!ObjDesc)
207 {
208 Status = AE_NO_MEMORY;
209 goto Cleanup;
210 }
211
212 /*
213 * Create the actual OS semaphore, with zero initial units -- meaning
214 * that the event is created in an unsignalled state
215 */
216 Status = AcpiOsCreateSemaphore (ACPI_NO_UNIT_LIMIT, 0,
217 &ObjDesc->Event.Semaphore);
218 if (ACPI_FAILURE (Status))
219 {
220 goto Cleanup;
221 }
222
223 /* Attach object to the Node */
224
225 Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) WalkState->Operands[0],
226 ObjDesc, ACPI_TYPE_EVENT);
227
228Cleanup:
229 /*
230 * Remove local reference to the object (on error, will cause deletion
231 * of both object and semaphore if present.)
232 */
233 AcpiUtRemoveReference (ObjDesc);
234 return_ACPI_STATUS (Status);
235}
236
237
238/*****************************************************************************
239 *
240 * FUNCTION: AcpiExCreateMutex
241 *
242 * PARAMETERS: WalkState - Current state
243 *
244 * RETURN: Status
245 *
246 * DESCRIPTION: Create a new mutex object
247 *
248 * Mutex (Name[0], SyncLevel[1])
249 *
250 ****************************************************************************/
251
252ACPI_STATUS
253AcpiExCreateMutex (
254 ACPI_WALK_STATE *WalkState)
255{
256 ACPI_STATUS Status = AE_OK;
257 ACPI_OPERAND_OBJECT *ObjDesc;
258
259
260 ACPI_FUNCTION_TRACE_PTR ("ExCreateMutex", ACPI_WALK_OPERANDS);
261
262
263 /* Create the new mutex object */
264
265 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_MUTEX);
266 if (!ObjDesc)
267 {
268 Status = AE_NO_MEMORY;
269 goto Cleanup;
270 }
271
272 /*
273 * Create the actual OS semaphore.
274 * One unit max to make it a mutex, with one initial unit to allow
275 * the mutex to be acquired.
276 */
277 Status = AcpiOsCreateSemaphore (1, 1, &ObjDesc->Mutex.Semaphore);
278 if (ACPI_FAILURE (Status))
279 {
280 goto Cleanup;
281 }
282
283 /* Init object and attach to NS node */
284
285 ObjDesc->Mutex.SyncLevel = (UINT8) WalkState->Operands[1]->Integer.Value;
286
287 Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) WalkState->Operands[0],
288 ObjDesc, ACPI_TYPE_MUTEX);
289
290
291Cleanup:
292 /*
293 * Remove local reference to the object (on error, will cause deletion
294 * of both object and semaphore if present.)
295 */
296 AcpiUtRemoveReference (ObjDesc);
297 return_ACPI_STATUS (Status);
298}
299
300
301/*****************************************************************************
302 *
303 * FUNCTION: AcpiExCreateRegion
304 *
305 * PARAMETERS: AmlStart - Pointer to the region declaration AML
306 * AmlLength - Max length of the declaration AML
307 * Operands - List of operands for the opcode
308 * WalkState - Current state
309 *
310 * RETURN: Status
311 *
312 * DESCRIPTION: Create a new operation region object
313 *
314 ****************************************************************************/
315
316ACPI_STATUS
317AcpiExCreateRegion (
318 UINT8 *AmlStart,
319 UINT32 AmlLength,
320 UINT8 RegionSpace,
321 ACPI_WALK_STATE *WalkState)
322{
323 ACPI_STATUS Status;
324 ACPI_OPERAND_OBJECT *ObjDesc;
325 ACPI_NAMESPACE_NODE *Node;
326 ACPI_OPERAND_OBJECT *RegionObj2;
327
328
329 ACPI_FUNCTION_TRACE ("ExCreateRegion");
330
331
332 /* Get the Node from the object stack */
333
334 Node = WalkState->Op->Node;
335
336 /*
337 * If the region object is already attached to this node,
338 * just return
339 */
340 if (AcpiNsGetAttachedObject (Node))
341 {
342 return_ACPI_STATUS (AE_OK);
343 }
344
345 /*
346 * Space ID must be one of the predefined IDs, or in the user-defined
347 * range
348 */
349 if ((RegionSpace >= ACPI_NUM_PREDEFINED_REGIONS) &&
350 (RegionSpace < ACPI_USER_REGION_BEGIN))
351 {
352 ACPI_REPORT_ERROR (("Invalid AddressSpace type %X\n", RegionSpace));
353 return_ACPI_STATUS (AE_AML_INVALID_SPACE_ID);
354 }
355
356 ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "Region Type - %s (%X)\n",
357 AcpiUtGetRegionName (RegionSpace), RegionSpace));
358
359
360 /* Create the region descriptor */
361
362 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_REGION);
363 if (!ObjDesc)
364 {
365 Status = AE_NO_MEMORY;
366 goto Cleanup;
367 }
368
369 /*
370 * Remember location in AML stream of address & length
371 * operands since they need to be evaluated at run time.
372 */
373 RegionObj2 = ObjDesc->Common.NextObject;
374 RegionObj2->Extra.AmlStart = AmlStart;
375 RegionObj2->Extra.AmlLength = AmlLength;
376
377 /* Init the region from the operands */
378
379 ObjDesc->Region.SpaceId = RegionSpace;
380 ObjDesc->Region.Address = 0;
381 ObjDesc->Region.Length = 0;
382 ObjDesc->Region.Node = Node;
383
384 /* Install the new region object in the parent Node */
385
386 Status = AcpiNsAttachObject (Node, ObjDesc, ACPI_TYPE_REGION);
387
388
389Cleanup:
390
391 /* Remove local reference to the object */
392
393 AcpiUtRemoveReference (ObjDesc);
394 return_ACPI_STATUS (Status);
395}
396
397
398/*****************************************************************************
399 *
400 * FUNCTION: AcpiExCreateTableRegion
401 *
402 * PARAMETERS: WalkState - Current state
403 *
404 * RETURN: Status
405 *
406 * DESCRIPTION: Create a new DataTableRegion object
407 *
408 ****************************************************************************/
409
410ACPI_STATUS
411AcpiExCreateTableRegion (
412 ACPI_WALK_STATE *WalkState)
413{
414 ACPI_STATUS Status;
415 ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
416 ACPI_OPERAND_OBJECT *ObjDesc;
417 ACPI_NAMESPACE_NODE *Node;
418 ACPI_TABLE_HEADER *Table;
419 ACPI_OPERAND_OBJECT *RegionObj2;
420
421
422 ACPI_FUNCTION_TRACE ("ExCreateTableRegion");
423
424 /* Get the Node from the object stack */
425
426 Node = WalkState->Op->Node;
427
428 /*
429 * If the region object is already attached to this node,
430 * just return
431 */
432 if (AcpiNsGetAttachedObject (Node))
433 {
434 return_ACPI_STATUS (AE_OK);
435 }
436
437 /* Find the ACPI table */
438
439 Status = AcpiTbFindTable (Operand[1]->String.Pointer,
440 Operand[2]->String.Pointer,
441 Operand[3]->String.Pointer, &Table);
442
443 if (ACPI_FAILURE (Status))
444 {
445 return_ACPI_STATUS (Status);
446 }
447
448 /* Create the region descriptor */
449
450 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_REGION);
451 if (!ObjDesc)
452 {
453 return_ACPI_STATUS (AE_NO_MEMORY);
454 }
455
456 RegionObj2 = ObjDesc->Common.NextObject;
457 RegionObj2->Extra.RegionContext = NULL;
458
459 /* Init the region from the operands */
460
461 ObjDesc->Region.SpaceId = REGION_DATA_TABLE;
462 ObjDesc->Region.Address = (ACPI_PHYSICAL_ADDRESS) ACPI_TO_INTEGER (Table);
463 ObjDesc->Region.Length = Table->Length;
464 ObjDesc->Region.Node = Node;
465 ObjDesc->Region.Flags = AOPOBJ_DATA_VALID;
466
467 /* Install the new region object in the parent Node */
468
469 Status = AcpiNsAttachObject (Node, ObjDesc, ACPI_TYPE_REGION);
470 if (ACPI_FAILURE (Status))
471 {
472 goto Cleanup;
473 }
474
475 Status = AcpiEvInitializeRegion (ObjDesc, FALSE);
476 if (ACPI_FAILURE (Status))
477 {
478 if (Status == AE_NOT_EXIST)
479 {
480 Status = AE_OK;
481 }
482 else
483 {
484 goto Cleanup;
485 }
486 }
487
488 ObjDesc->Region.Flags |= AOPOBJ_SETUP_COMPLETE;
489
490
491Cleanup:
492
493 /* Remove local reference to the object */
494
495 AcpiUtRemoveReference (ObjDesc);
496 return_ACPI_STATUS (Status);
497}
498
499
500/*****************************************************************************
501 *
502 * FUNCTION: AcpiExCreateProcessor
503 *
504 * PARAMETERS: Op - Op containing the Processor definition and
505 * args
506 * ProcessorNode - Parent Node for the processor object
507 *
508 * RETURN: Status
509 *
510 * DESCRIPTION: Create a new processor object and populate the fields
511 *
512 * Processor (Name[0], CpuID[1], PblockAddr[2], PblockLength[3])
513 *
514 ****************************************************************************/
515
516ACPI_STATUS
517AcpiExCreateProcessor (
518 ACPI_WALK_STATE *WalkState)
519{
520 ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
521 ACPI_OPERAND_OBJECT *ObjDesc;
522 ACPI_STATUS Status;
523
524
525 ACPI_FUNCTION_TRACE_PTR ("ExCreateProcessor", WalkState);
526
527
528 /* Create the processor object */
529
530 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_PROCESSOR);
531 if (!ObjDesc)
532 {
533 return_ACPI_STATUS (AE_NO_MEMORY);
534 }
535
536 /*
537 * Initialize the processor object from the operands
538 */
539 ObjDesc->Processor.ProcId = (UINT8) Operand[1]->Integer.Value;
540 ObjDesc->Processor.Address = (ACPI_IO_ADDRESS) Operand[2]->Integer.Value;
541 ObjDesc->Processor.Length = (UINT8) Operand[3]->Integer.Value;
542
543 /* Install the processor object in the parent Node */
544
545 Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) Operand[0],
546 ObjDesc, ACPI_TYPE_PROCESSOR);
547
548
549 /* Remove local reference to the object */
550
551 AcpiUtRemoveReference (ObjDesc);
552 return_ACPI_STATUS (Status);
553}
554
555
556/*****************************************************************************
557 *
558 * FUNCTION: AcpiExCreatePowerResource
559 *
560 * PARAMETERS: Op - Op containing the PowerResource definition
561 * and args
562 * PowerNode - Parent Node for the power object
563 *
564 * RETURN: Status
565 *
566 * DESCRIPTION: Create a new PowerResource object and populate the fields
567 *
568 * PowerResource (Name[0], SystemLevel[1], ResourceOrder[2])
569 *
570 ****************************************************************************/
571
572ACPI_STATUS
573AcpiExCreatePowerResource (
574 ACPI_WALK_STATE *WalkState)
575{
576 ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
577 ACPI_STATUS Status;
578 ACPI_OPERAND_OBJECT *ObjDesc;
579
580
581 ACPI_FUNCTION_TRACE_PTR ("ExCreatePowerResource", WalkState);
582
583
584 /* Create the power resource object */
585
586 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_POWER);
587 if (!ObjDesc)
588 {
589 return_ACPI_STATUS (AE_NO_MEMORY);
590 }
591
592 /* Initialize the power object from the operands */
593
594 ObjDesc->PowerResource.SystemLevel = (UINT8) Operand[1]->Integer.Value;
595 ObjDesc->PowerResource.ResourceOrder = (UINT16) Operand[2]->Integer.Value;
596
597 /* Install the power resource object in the parent Node */
598
599 Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) Operand[0],
600 ObjDesc, ACPI_TYPE_POWER);
601
602
603 /* Remove local reference to the object */
604
605 AcpiUtRemoveReference (ObjDesc);
606 return_ACPI_STATUS (Status);
607}
608
609
610/*****************************************************************************
611 *
612 * FUNCTION: AcpiExCreateMethod
613 *
614 * PARAMETERS: AmlStart - First byte of the method's AML
615 * AmlLength - AML byte count for this method
616 * MethodFlags - AML method flag byte
617 * Method - Method Node
618 *
619 * RETURN: Status
620 *
621 * DESCRIPTION: Create a new method object
622 *
623 ****************************************************************************/
624
625ACPI_STATUS
626AcpiExCreateMethod (
627 UINT8 *AmlStart,
628 UINT32 AmlLength,
629 ACPI_WALK_STATE *WalkState)
630{
631 ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
632 ACPI_OPERAND_OBJECT *ObjDesc;
633 ACPI_STATUS Status;
634 UINT8 MethodFlags;
635
636
637 ACPI_FUNCTION_TRACE_PTR ("ExCreateMethod", WalkState);
638
639
640 /* Create a new method object */
641
642 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_METHOD);
643 if (!ObjDesc)
644 {
645 return_ACPI_STATUS (AE_NO_MEMORY);
646 }
647
648 /* Save the method's AML pointer and length */
649
650 ObjDesc->Method.AmlStart = AmlStart;
651 ObjDesc->Method.AmlLength = AmlLength;
652
653 /* disassemble the method flags */
654
655 MethodFlags = (UINT8) Operand[1]->Integer.Value;
656
657 ObjDesc->Method.MethodFlags = MethodFlags;
658 ObjDesc->Method.ParamCount = (UINT8) (MethodFlags & METHOD_FLAGS_ARG_COUNT);
659
660 /*
661 * Get the concurrency count. If required, a semaphore will be
662 * created for this method when it is parsed.
663 */
664 if (MethodFlags & METHOD_FLAGS_SERIALIZED)
665 {
666 /*
667 * ACPI 1.0: Concurrency = 1
668 * ACPI 2.0: Concurrency = (SyncLevel (in method declaration) + 1)
669 */
670 ObjDesc->Method.Concurrency = (UINT8)
671 (((MethodFlags & METHOD_FLAGS_SYNCH_LEVEL) >> 4) + 1);
672 }
673
674 else
675 {
676 ObjDesc->Method.Concurrency = INFINITE_CONCURRENCY;
677 }
678
679 /* Attach the new object to the method Node */
680
681 Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) Operand[0],
682 ObjDesc, ACPI_TYPE_METHOD);
683
684 /* Remove local reference to the object */
685
686 AcpiUtRemoveReference (ObjDesc);
687
688 /* Remove a reference to the operand */
689
690 AcpiUtRemoveReference (Operand[1]);
691 return_ACPI_STATUS (Status);
692}
693
694