1
2/******************************************************************************
3 *
4 * Module Name: aslresource - Resource templates and descriptors
5 * $Revision: 1.38 $
6 *
7 *****************************************************************************/
8
9/******************************************************************************
10 *
11 * 1. Copyright Notice
12 *
13 * Some or all of this work - Copyright (c) 1999 - 2005, Intel Corp.
14 * All rights reserved.
15 *
16 * 2. License
17 *
18 * 2.1. This is your license from Intel Corp. under its intellectual property
19 * rights. You may have additional license terms from the party that provided
20 * you this software, covering your right to use that party's intellectual
21 * property rights.
22 *
23 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
24 * copy of the source code appearing in this file ("Covered Code") an
25 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
26 * base code distributed originally by Intel ("Original Intel Code") to copy,
27 * make derivatives, distribute, use and display any portion of the Covered
28 * Code in any form, with the right to sublicense such rights; and
29 *
30 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
31 * license (with the right to sublicense), under only those claims of Intel
32 * patents that are infringed by the Original Intel Code, to make, use, sell,
33 * offer to sell, and import the Covered Code and derivative works thereof
34 * solely to the minimum extent necessary to exercise the above copyright
35 * license, and in no event shall the patent license extend to any additions
36 * to or modifications of the Original Intel Code. No other license or right
37 * is granted directly or by implication, estoppel or otherwise;
38 *
39 * The above copyright and patent license is granted only if the following
40 * conditions are met:
41 *
42 * 3. Conditions
43 *
44 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
45 * Redistribution of source code of any substantial portion of the Covered
46 * Code or modification with rights to further distribute source must include
47 * the above Copyright Notice, the above License, this list of Conditions,
48 * and the following Disclaimer and Export Compliance provision. In addition,
49 * Licensee must cause all Covered Code to which Licensee contributes to
50 * contain a file documenting the changes Licensee made to create that Covered
51 * Code and the date of any change. Licensee must include in that file the
52 * documentation of any changes made by any predecessor Licensee. Licensee
53 * must include a prominent statement that the modification is derived,
54 * directly or indirectly, from Original Intel Code.
55 *
56 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
57 * Redistribution of source code of any substantial portion of the Covered
58 * Code or modification without rights to further distribute source must
59 * include the following Disclaimer and Export Compliance provision in the
60 * documentation and/or other materials provided with distribution. In
61 * addition, Licensee may not authorize further sublicense of source of any
62 * portion of the Covered Code, and must include terms to the effect that the
63 * license from Licensee to its licensee is limited to the intellectual
64 * property embodied in the software Licensee provides to its licensee, and
65 * not to intellectual property embodied in modifications its licensee may
66 * make.
67 *
68 * 3.3. Redistribution of Executable. Redistribution in executable form of any
69 * substantial portion of the Covered Code or modification must reproduce the
70 * above Copyright Notice, and the following Disclaimer and Export Compliance
71 * provision in the documentation and/or other materials provided with the
72 * distribution.
73 *
74 * 3.4. Intel retains all right, title, and interest in and to the Original
75 * Intel Code.
76 *
77 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
78 * Intel shall be used in advertising or otherwise to promote the sale, use or
79 * other dealings in products derived from or relating to the Covered Code
80 * without prior written authorization from Intel.
81 *
82 * 4. Disclaimer and Export Compliance
83 *
84 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
85 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
86 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
87 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
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
119#include <contrib/dev/acpica/compiler/aslcompiler.h>
120#include "aslcompiler.y.h"
121#include <contrib/dev/acpica/amlcode.h>
122
123
124#define _COMPONENT ACPI_COMPILER
125 ACPI_MODULE_NAME ("aslresource")
126
127
128/*******************************************************************************
129 *
130 * FUNCTION: RsAllocateResourceNode
131 *
132 * PARAMETERS: Size - Size of node in bytes
133 *
134 * RETURN: The allocated node - aborts on allocation failure
135 *
136 * DESCRIPTION: Allocate a resource description node and the resource
137 * descriptor itself (the nodes are used to link descriptors).
138 *
139 ******************************************************************************/
140
141ASL_RESOURCE_NODE *
142RsAllocateResourceNode (
143 UINT32 Size)
144{
145 ASL_RESOURCE_NODE *Rnode;
146
147
148 /* Allocate the node */
149
150 Rnode = UtLocalCalloc (sizeof (ASL_RESOURCE_NODE));
151
152 /* Allocate the resource descriptor itself */
153
154 Rnode->Buffer = UtLocalCalloc (Size);
155 Rnode->BufferLength = Size;
156
157 return (Rnode);
158}
159
160
161/*******************************************************************************
162 *
163 * FUNCTION: RsCreateBitField
164 *
165 * PARAMETERS: Op - Resource field node
166 * Name - Name of the field (Used only to reference
167 * the field in the ASL, not in the AML)
168 * ByteOffset - Offset from the field start
169 * BitOffset - Additional bit offset
170 *
171 * RETURN: None, sets fields within the input node
172 *
173 * DESCRIPTION: Utility function to generate a named bit field within a
174 * resource descriptor. Mark a node as 1) a field in a resource
175 * descriptor, and 2) set the value to be a BIT offset
176 *
177 ******************************************************************************/
178
179void
180RsCreateBitField (
181 ACPI_PARSE_OBJECT *Op,
182 char *Name,
183 UINT32 ByteOffset,
184 UINT32 BitOffset)
185{
186
187 Op->Asl.ExternalName = Name;
188 Op->Asl.Value.Integer = ((ACPI_INTEGER) ByteOffset * 8) + BitOffset;
189 Op->Asl.CompileFlags |= (NODE_IS_RESOURCE_FIELD | NODE_IS_BIT_OFFSET);
190}
191
192
193/*******************************************************************************
194 *
195 * FUNCTION: RsCreateByteField
196 *
197 * PARAMETERS: Op - Resource field node
198 * Name - Name of the field (Used only to reference
199 * the field in the ASL, not in the AML)
200 * ByteOffset - Offset from the field start
201 *
202 * RETURN: None, sets fields within the input node
203 *
204 * DESCRIPTION: Utility function to generate a named byte field within a
205 * resource descriptor. Mark a node as 1) a field in a resource
206 * descriptor, and 2) set the value to be a BYTE offset
207 *
208 ******************************************************************************/
209
210void
211RsCreateByteField (
212 ACPI_PARSE_OBJECT *Op,
213 char *Name,
214 UINT32 ByteOffset)
215{
216
217 Op->Asl.ExternalName = Name;
218 Op->Asl.Value.Integer = ByteOffset;
219 Op->Asl.CompileFlags |= NODE_IS_RESOURCE_FIELD;
220}
221
222
223/*******************************************************************************
224 *
225 * FUNCTION: RsSetFlagBits
226 *
227 * PARAMETERS: *Flags - Pointer to the flag byte
228 * Op - Flag initialization node
229 * Position - Bit position within the flag byte
230 * Default - Used if the node is DEFAULT.
231 *
232 * RETURN: Sets bits within the *Flags output byte.
233 *
234 * DESCRIPTION: Set a bit in a cumulative flags word from an initialization
235 * node. Will use a default value if the node is DEFAULT, meaning
236 * that no value was specified in the ASL. Used to merge multiple
237 * keywords into a single flags byte.
238 *
239 ******************************************************************************/
240
241void
242RsSetFlagBits (
243 UINT8 *Flags,
244 ACPI_PARSE_OBJECT *Op,
245 UINT8 Position,
246 UINT8 DefaultBit)
247{
248
249 if (Op->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG)
250 {
251 /* Use the default bit */
252
253 *Flags |= (DefaultBit << Position);
254 }
255 else
256 {
257 /* Use the bit specified in the initialization node */
258
259 *Flags |= (((UINT8) Op->Asl.Value.Integer) << Position);
260 }
261}
262
263
264/*******************************************************************************
265 *
266 * FUNCTION: RsCompleteNodeAndGetNext
267 *
268 * PARAMETERS: Op - Resource node to be completed
269 *
270 * RETURN: The next peer to the input node.
271 *
272 * DESCRIPTION: Mark the current node completed and return the next peer.
273 * The node ParseOpcode is set to DEFAULT_ARG, meaning that
274 * this node is to be ignored from now on.
275 *
276 ******************************************************************************/
277
278ACPI_PARSE_OBJECT *
279RsCompleteNodeAndGetNext (
280 ACPI_PARSE_OBJECT *Op)
281{
282
283 /* Mark this node unused */
284
285 Op->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
286
287 /* Move on to the next peer node in the initializer list */
288
289 return (ASL_GET_PEER_NODE (Op));
290}
291
292
293/*******************************************************************************
294 *
295 * FUNCTION: RsCheckListForDuplicates
296 *
297 * PARAMETERS: Op - First op in the initializer list
298 *
299 * RETURN: None
300 *
301 * DESCRIPTION: Check an initializer list for duplicate values. Emits an error
302 * if any duplicates are found.
303 *
304 ******************************************************************************/
305
306void
307RsCheckListForDuplicates (
308 ACPI_PARSE_OBJECT *Op)
309{
310 ACPI_PARSE_OBJECT *NextValueOp = Op;
311 ACPI_PARSE_OBJECT *NextOp;
312 UINT32 Value;
313
314
315 if (!Op)
316 {
317 return;
318 }
319
320 /* Search list once for each value in the list */
321
322 while (NextValueOp)
323 {
324 Value = (UINT32) NextValueOp->Asl.Value.Integer;
325
326 /* Compare this value to all remaining values in the list */
327
328 NextOp = ASL_GET_PEER_NODE (NextValueOp);
329 while (NextOp)
330 {
331 if (NextOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
332 {
333 /* Compare values */
334
335 if (Value == (UINT32) NextOp->Asl.Value.Integer)
336 {
337 /* Emit error only once per duplicate node */
338
339 if (!(NextOp->Asl.CompileFlags & NODE_IS_DUPLICATE))
340 {
341 NextOp->Asl.CompileFlags |= NODE_IS_DUPLICATE;
342 AslError (ASL_ERROR, ASL_MSG_DUPLICATE_ITEM,
343 NextOp, NULL);
344 }
345 }
346 }
347
348 NextOp = ASL_GET_PEER_NODE (NextOp);
349 }
350
351 NextValueOp = ASL_GET_PEER_NODE (NextValueOp);
352 }
353}
354
355
356/*******************************************************************************
357 *
358 * FUNCTION: RsDoOneResourceDescriptor
359 *
360 * PARAMETERS: DescriptorTypeOp - Parent parse node of the descriptor
361 * CurrentByteOffset - Offset in the resource descriptor
362 * buffer.
363 *
364 * RETURN: A valid resource node for the descriptor
365 *
366 * DESCRIPTION: Dispatches the processing of one resource descriptor
367 *
368 ******************************************************************************/
369
370ASL_RESOURCE_NODE *
371RsDoOneResourceDescriptor (
372 ACPI_PARSE_OBJECT *DescriptorTypeOp,
373 UINT32 CurrentByteOffset,
374 UINT8 *State)
375{
376 ASL_RESOURCE_NODE *Rnode = NULL;
377
378
379 /* Determine type of resource */
380
381 switch (DescriptorTypeOp->Asl.ParseOpcode)
382 {
383 case PARSEOP_DMA:
384 Rnode = RsDoDmaDescriptor (DescriptorTypeOp,
385 CurrentByteOffset);
386 break;
387
388 case PARSEOP_DWORDIO:
389 Rnode = RsDoDwordIoDescriptor (DescriptorTypeOp,
390 CurrentByteOffset);
391 break;
392
393 case PARSEOP_DWORDMEMORY:
394 Rnode = RsDoDwordMemoryDescriptor (DescriptorTypeOp,
395 CurrentByteOffset);
396 break;
397
398 case PARSEOP_DWORDSPACE:
399 Rnode = RsDoDwordSpaceDescriptor (DescriptorTypeOp,
400 CurrentByteOffset);
401 break;
402
403 case PARSEOP_ENDDEPENDENTFN:
404 switch (*State)
405 {
406 case ACPI_RSTATE_NORMAL:
407 AslError (ASL_ERROR, ASL_MSG_MISSING_STARTDEPENDENT,
408 DescriptorTypeOp, NULL);
409 break;
410
411 case ACPI_RSTATE_START_DEPENDENT:
412 AslError (ASL_ERROR, ASL_MSG_DEPENDENT_NESTING,
413 DescriptorTypeOp, NULL);
414 break;
415
416 case ACPI_RSTATE_DEPENDENT_LIST:
417 default:
418 break;
419 }
420
421 *State = ACPI_RSTATE_NORMAL;
422 Rnode = RsDoEndDependentDescriptor (DescriptorTypeOp,
423 CurrentByteOffset);
424 break;
425
426 case PARSEOP_EXTENDEDIO:
427 Rnode = RsDoExtendedIoDescriptor (DescriptorTypeOp,
428 CurrentByteOffset);
429 break;
430
431 case PARSEOP_EXTENDEDMEMORY:
432 Rnode = RsDoExtendedMemoryDescriptor (DescriptorTypeOp,
433 CurrentByteOffset);
434 break;
435
436 case PARSEOP_EXTENDEDSPACE:
437 Rnode = RsDoExtendedSpaceDescriptor (DescriptorTypeOp,
438 CurrentByteOffset);
439 break;
440
441 case PARSEOP_FIXEDIO:
442 Rnode = RsDoFixedIoDescriptor (DescriptorTypeOp,
443 CurrentByteOffset);
444 break;
445
446 case PARSEOP_INTERRUPT:
447 Rnode = RsDoInterruptDescriptor (DescriptorTypeOp,
448 CurrentByteOffset);
449 break;
450
451 case PARSEOP_IO:
452 Rnode = RsDoIoDescriptor (DescriptorTypeOp,
453 CurrentByteOffset);
454 break;
455
456 case PARSEOP_IRQ:
457 Rnode = RsDoIrqDescriptor (DescriptorTypeOp,
458 CurrentByteOffset);
459 break;
460
461 case PARSEOP_IRQNOFLAGS:
462 Rnode = RsDoIrqNoFlagsDescriptor (DescriptorTypeOp,
463 CurrentByteOffset);
464 break;
465
466 case PARSEOP_MEMORY24:
467 Rnode = RsDoMemory24Descriptor (DescriptorTypeOp,
468 CurrentByteOffset);
469 break;
470
471 case PARSEOP_MEMORY32:
472 Rnode = RsDoMemory32Descriptor (DescriptorTypeOp,
473 CurrentByteOffset);
474 break;
475
476 case PARSEOP_MEMORY32FIXED:
477 Rnode = RsDoMemory32FixedDescriptor (DescriptorTypeOp,
478 CurrentByteOffset);
479 break;
480
481 case PARSEOP_QWORDIO:
482 Rnode = RsDoQwordIoDescriptor (DescriptorTypeOp,
483 CurrentByteOffset);
484 break;
485
486 case PARSEOP_QWORDMEMORY:
487 Rnode = RsDoQwordMemoryDescriptor (DescriptorTypeOp,
488 CurrentByteOffset);
489 break;
490
491 case PARSEOP_QWORDSPACE:
492 Rnode = RsDoQwordSpaceDescriptor (DescriptorTypeOp,
493 CurrentByteOffset);
494 break;
495
496 case PARSEOP_REGISTER:
497 Rnode = RsDoGeneralRegisterDescriptor (DescriptorTypeOp,
498 CurrentByteOffset);
499 break;
500
501 case PARSEOP_STARTDEPENDENTFN:
502 switch (*State)
503 {
504 case ACPI_RSTATE_START_DEPENDENT:
505 AslError (ASL_ERROR, ASL_MSG_DEPENDENT_NESTING,
506 DescriptorTypeOp, NULL);
507 break;
508
509 case ACPI_RSTATE_NORMAL:
510 case ACPI_RSTATE_DEPENDENT_LIST:
511 default:
512 break;
513 }
514
515 *State = ACPI_RSTATE_START_DEPENDENT;
516 Rnode = RsDoStartDependentDescriptor (DescriptorTypeOp,
517 CurrentByteOffset);
518 *State = ACPI_RSTATE_DEPENDENT_LIST;
519 break;
520
521 case PARSEOP_STARTDEPENDENTFN_NOPRI:
522 switch (*State)
523 {
524 case ACPI_RSTATE_START_DEPENDENT:
525 AslError (ASL_ERROR, ASL_MSG_DEPENDENT_NESTING,
526 DescriptorTypeOp, NULL);
527 break;
528
529 case ACPI_RSTATE_NORMAL:
530 case ACPI_RSTATE_DEPENDENT_LIST:
531 default:
532 break;
533 }
534
535 *State = ACPI_RSTATE_START_DEPENDENT;
536 Rnode = RsDoStartDependentNoPriDescriptor (DescriptorTypeOp,
537 CurrentByteOffset);
538 *State = ACPI_RSTATE_DEPENDENT_LIST;
539 break;
540
541 case PARSEOP_VENDORLONG:
542 Rnode = RsDoVendorLargeDescriptor (DescriptorTypeOp,
543 CurrentByteOffset);
544 break;
545
546 case PARSEOP_VENDORSHORT:
547 Rnode = RsDoVendorSmallDescriptor (DescriptorTypeOp,
548 CurrentByteOffset);
549 break;
550
551 case PARSEOP_WORDBUSNUMBER:
552 Rnode = RsDoWordBusNumberDescriptor (DescriptorTypeOp,
553 CurrentByteOffset);
554 break;
555
556 case PARSEOP_WORDIO:
557 Rnode = RsDoWordIoDescriptor (DescriptorTypeOp,
558 CurrentByteOffset);
559 break;
560
561 case PARSEOP_WORDSPACE:
562 Rnode = RsDoWordSpaceDescriptor (DescriptorTypeOp,
563 CurrentByteOffset);
564 break;
565
566 case PARSEOP_DEFAULT_ARG:
567 /* Just ignore any of these, they are used as fillers/placeholders */
568 break;
569
570 default:
571 printf ("Unknown resource descriptor type [%s]\n",
572 DescriptorTypeOp->Asl.ParseOpName);
573 break;
574 }
575
576 /*
577 * Mark original node as unused, but head of a resource descriptor.
578 * This allows the resource to be installed in the namespace so that
579 * references to the descriptor can be resolved.
580 */
581 DescriptorTypeOp->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
582 DescriptorTypeOp->Asl.CompileFlags = NODE_IS_RESOURCE_DESC;
583
584 return (Rnode);
585}
586
587
588/*******************************************************************************
589 *
590 * FUNCTION: RsLinkDescriptorChain
591 *
592 * PARAMETERS: PreviousRnode - Pointer to the node that will be previous
593 * to the linked node, At exit, set to the
594 * last node in the new chain.
595 * Rnode - Resource node to link into the list
596 *
597 * RETURN: Cumulative buffer byte offset of the new segment of chain
598 *
599 * DESCRIPTION: Link a descriptor chain at the end of an existing chain.
600 *
601 ******************************************************************************/
602
603UINT32
604RsLinkDescriptorChain (
605 ASL_RESOURCE_NODE **PreviousRnode,
606 ASL_RESOURCE_NODE *Rnode)
607{
608 ASL_RESOURCE_NODE *LastRnode;
609 UINT32 CurrentByteOffset;
610
611
612 /* Anything to do? */
613
614 if (!Rnode)
615 {
616 return 0;
617 }
618
619 /* Point the previous node to the new node */
620
621 (*PreviousRnode)->Next = Rnode;
622 CurrentByteOffset = Rnode->BufferLength;
623
624 /* Walk to the end of the chain headed by Rnode */
625
626 LastRnode = Rnode;
627 while (LastRnode->Next)
628 {
629 LastRnode = LastRnode->Next;
630 CurrentByteOffset += LastRnode->BufferLength;
631 }
632
633 /* Previous node becomes the last node in the chain */
634
635 *PreviousRnode = LastRnode;
636 return CurrentByteOffset;
637}
638
639
640/*******************************************************************************
641 *
642 * FUNCTION: RsDoResourceTemplate
643 *
644 * PARAMETERS: Op - Parent of a resource template list
645 *
646 * RETURN: None. Sets input node to point to a list of AML code
647 *
648 * DESCRIPTION: Merge a list of resource descriptors into a single AML buffer,
649 * in preparation for output to the AML output file.
650 *
651 ******************************************************************************/
652
653void
654RsDoResourceTemplate (
655 ACPI_PARSE_OBJECT *Op)
656{
657 ACPI_PARSE_OBJECT *BufferLengthOp;
658 ACPI_PARSE_OBJECT *BufferOp;
659 ACPI_PARSE_OBJECT *DescriptorTypeOp;
660 ACPI_PARSE_OBJECT *LastOp = NULL;
661 AML_RESOURCE *Descriptor;
662 UINT32 CurrentByteOffset = 0;
663 ASL_RESOURCE_NODE HeadRnode;
664 ASL_RESOURCE_NODE *PreviousRnode;
665 ASL_RESOURCE_NODE *Rnode;
666 UINT8 State;
667
668
669 /* ResourceTemplate Opcode is first (Op) */
670 /* Buffer Length node is first child */
671
672 BufferLengthOp = ASL_GET_CHILD_NODE (Op);
673
674 /* Buffer Op is first peer */
675
676 BufferOp = ASL_GET_PEER_NODE (BufferLengthOp);
677
678 /* First Descriptor type is next */
679
680 DescriptorTypeOp = ASL_GET_PEER_NODE (BufferOp);
681
682 /* Process all resource descriptors in the list */
683
684 State = ACPI_RSTATE_NORMAL;
685 PreviousRnode = &HeadRnode;
686 while (DescriptorTypeOp)
687 {
688 Rnode = RsDoOneResourceDescriptor (DescriptorTypeOp, CurrentByteOffset,
689 &State);
690
691 /*
692 * Update current byte offset to indicate the number of bytes from the
693 * start of the buffer. Buffer can include multiple descriptors, we
694 * must keep track of the offset of not only each descriptor, but each
695 * element (field) within each descriptor as well.
696 */
697 CurrentByteOffset += RsLinkDescriptorChain (&PreviousRnode, Rnode);
698
699 /* Get the next descriptor in the list */
700
701 LastOp = DescriptorTypeOp;
702 DescriptorTypeOp = ASL_GET_PEER_NODE (DescriptorTypeOp);
703 }
704
705 if (State == ACPI_RSTATE_DEPENDENT_LIST)
706 {
707 if (LastOp)
708 {
709 LastOp = LastOp->Asl.Parent;
710 }
711 AslError (ASL_ERROR, ASL_MSG_MISSING_ENDDEPENDENT, LastOp, NULL);
712 }
713
714 /*
715 * Insert the EndTag descriptor after all other descriptors have
716 * been processed
717 */
718 Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_END_TAG));
719
720 Descriptor = Rnode->Buffer;
721 Descriptor->EndTag.DescriptorType = ACPI_RESOURCE_NAME_END_TAG |
722 ASL_RDESC_END_TAG_SIZE;
723 Descriptor->EndTag.Checksum = 0;
724
725 CurrentByteOffset += RsLinkDescriptorChain (&PreviousRnode, Rnode);
726
727 /*
728 * Transform the nodes into the following
729 *
730 * Op -> AML_BUFFER_OP
731 * First Child -> BufferLength
732 * Second Child -> Descriptor Buffer (raw byte data)
733 */
734 Op->Asl.ParseOpcode = PARSEOP_BUFFER;
735 Op->Asl.AmlOpcode = AML_BUFFER_OP;
736 Op->Asl.CompileFlags = NODE_AML_PACKAGE;
737
738 BufferLengthOp->Asl.ParseOpcode = PARSEOP_INTEGER;
739 BufferLengthOp->Asl.Value.Integer = CurrentByteOffset;
740
741 (void) OpcSetOptimalIntegerSize (BufferLengthOp);
742
743 BufferOp->Asl.ParseOpcode = PARSEOP_RAW_DATA;
744 BufferOp->Asl.AmlOpcode = AML_RAW_DATA_CHAIN;
745 BufferOp->Asl.AmlOpcodeLength = 0;
746 BufferOp->Asl.AmlLength = CurrentByteOffset;
747 BufferOp->Asl.Value.Buffer = (UINT8 *) HeadRnode.Next;
748
749 return;
750}
751
752
2/******************************************************************************
3 *
4 * Module Name: aslresource - Resource templates and descriptors
5 * $Revision: 1.38 $
6 *
7 *****************************************************************************/
8
9/******************************************************************************
10 *
11 * 1. Copyright Notice
12 *
13 * Some or all of this work - Copyright (c) 1999 - 2005, Intel Corp.
14 * All rights reserved.
15 *
16 * 2. License
17 *
18 * 2.1. This is your license from Intel Corp. under its intellectual property
19 * rights. You may have additional license terms from the party that provided
20 * you this software, covering your right to use that party's intellectual
21 * property rights.
22 *
23 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
24 * copy of the source code appearing in this file ("Covered Code") an
25 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
26 * base code distributed originally by Intel ("Original Intel Code") to copy,
27 * make derivatives, distribute, use and display any portion of the Covered
28 * Code in any form, with the right to sublicense such rights; and
29 *
30 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
31 * license (with the right to sublicense), under only those claims of Intel
32 * patents that are infringed by the Original Intel Code, to make, use, sell,
33 * offer to sell, and import the Covered Code and derivative works thereof
34 * solely to the minimum extent necessary to exercise the above copyright
35 * license, and in no event shall the patent license extend to any additions
36 * to or modifications of the Original Intel Code. No other license or right
37 * is granted directly or by implication, estoppel or otherwise;
38 *
39 * The above copyright and patent license is granted only if the following
40 * conditions are met:
41 *
42 * 3. Conditions
43 *
44 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
45 * Redistribution of source code of any substantial portion of the Covered
46 * Code or modification with rights to further distribute source must include
47 * the above Copyright Notice, the above License, this list of Conditions,
48 * and the following Disclaimer and Export Compliance provision. In addition,
49 * Licensee must cause all Covered Code to which Licensee contributes to
50 * contain a file documenting the changes Licensee made to create that Covered
51 * Code and the date of any change. Licensee must include in that file the
52 * documentation of any changes made by any predecessor Licensee. Licensee
53 * must include a prominent statement that the modification is derived,
54 * directly or indirectly, from Original Intel Code.
55 *
56 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
57 * Redistribution of source code of any substantial portion of the Covered
58 * Code or modification without rights to further distribute source must
59 * include the following Disclaimer and Export Compliance provision in the
60 * documentation and/or other materials provided with distribution. In
61 * addition, Licensee may not authorize further sublicense of source of any
62 * portion of the Covered Code, and must include terms to the effect that the
63 * license from Licensee to its licensee is limited to the intellectual
64 * property embodied in the software Licensee provides to its licensee, and
65 * not to intellectual property embodied in modifications its licensee may
66 * make.
67 *
68 * 3.3. Redistribution of Executable. Redistribution in executable form of any
69 * substantial portion of the Covered Code or modification must reproduce the
70 * above Copyright Notice, and the following Disclaimer and Export Compliance
71 * provision in the documentation and/or other materials provided with the
72 * distribution.
73 *
74 * 3.4. Intel retains all right, title, and interest in and to the Original
75 * Intel Code.
76 *
77 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
78 * Intel shall be used in advertising or otherwise to promote the sale, use or
79 * other dealings in products derived from or relating to the Covered Code
80 * without prior written authorization from Intel.
81 *
82 * 4. Disclaimer and Export Compliance
83 *
84 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
85 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
86 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
87 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
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
119#include <contrib/dev/acpica/compiler/aslcompiler.h>
120#include "aslcompiler.y.h"
121#include <contrib/dev/acpica/amlcode.h>
122
123
124#define _COMPONENT ACPI_COMPILER
125 ACPI_MODULE_NAME ("aslresource")
126
127
128/*******************************************************************************
129 *
130 * FUNCTION: RsAllocateResourceNode
131 *
132 * PARAMETERS: Size - Size of node in bytes
133 *
134 * RETURN: The allocated node - aborts on allocation failure
135 *
136 * DESCRIPTION: Allocate a resource description node and the resource
137 * descriptor itself (the nodes are used to link descriptors).
138 *
139 ******************************************************************************/
140
141ASL_RESOURCE_NODE *
142RsAllocateResourceNode (
143 UINT32 Size)
144{
145 ASL_RESOURCE_NODE *Rnode;
146
147
148 /* Allocate the node */
149
150 Rnode = UtLocalCalloc (sizeof (ASL_RESOURCE_NODE));
151
152 /* Allocate the resource descriptor itself */
153
154 Rnode->Buffer = UtLocalCalloc (Size);
155 Rnode->BufferLength = Size;
156
157 return (Rnode);
158}
159
160
161/*******************************************************************************
162 *
163 * FUNCTION: RsCreateBitField
164 *
165 * PARAMETERS: Op - Resource field node
166 * Name - Name of the field (Used only to reference
167 * the field in the ASL, not in the AML)
168 * ByteOffset - Offset from the field start
169 * BitOffset - Additional bit offset
170 *
171 * RETURN: None, sets fields within the input node
172 *
173 * DESCRIPTION: Utility function to generate a named bit field within a
174 * resource descriptor. Mark a node as 1) a field in a resource
175 * descriptor, and 2) set the value to be a BIT offset
176 *
177 ******************************************************************************/
178
179void
180RsCreateBitField (
181 ACPI_PARSE_OBJECT *Op,
182 char *Name,
183 UINT32 ByteOffset,
184 UINT32 BitOffset)
185{
186
187 Op->Asl.ExternalName = Name;
188 Op->Asl.Value.Integer = ((ACPI_INTEGER) ByteOffset * 8) + BitOffset;
189 Op->Asl.CompileFlags |= (NODE_IS_RESOURCE_FIELD | NODE_IS_BIT_OFFSET);
190}
191
192
193/*******************************************************************************
194 *
195 * FUNCTION: RsCreateByteField
196 *
197 * PARAMETERS: Op - Resource field node
198 * Name - Name of the field (Used only to reference
199 * the field in the ASL, not in the AML)
200 * ByteOffset - Offset from the field start
201 *
202 * RETURN: None, sets fields within the input node
203 *
204 * DESCRIPTION: Utility function to generate a named byte field within a
205 * resource descriptor. Mark a node as 1) a field in a resource
206 * descriptor, and 2) set the value to be a BYTE offset
207 *
208 ******************************************************************************/
209
210void
211RsCreateByteField (
212 ACPI_PARSE_OBJECT *Op,
213 char *Name,
214 UINT32 ByteOffset)
215{
216
217 Op->Asl.ExternalName = Name;
218 Op->Asl.Value.Integer = ByteOffset;
219 Op->Asl.CompileFlags |= NODE_IS_RESOURCE_FIELD;
220}
221
222
223/*******************************************************************************
224 *
225 * FUNCTION: RsSetFlagBits
226 *
227 * PARAMETERS: *Flags - Pointer to the flag byte
228 * Op - Flag initialization node
229 * Position - Bit position within the flag byte
230 * Default - Used if the node is DEFAULT.
231 *
232 * RETURN: Sets bits within the *Flags output byte.
233 *
234 * DESCRIPTION: Set a bit in a cumulative flags word from an initialization
235 * node. Will use a default value if the node is DEFAULT, meaning
236 * that no value was specified in the ASL. Used to merge multiple
237 * keywords into a single flags byte.
238 *
239 ******************************************************************************/
240
241void
242RsSetFlagBits (
243 UINT8 *Flags,
244 ACPI_PARSE_OBJECT *Op,
245 UINT8 Position,
246 UINT8 DefaultBit)
247{
248
249 if (Op->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG)
250 {
251 /* Use the default bit */
252
253 *Flags |= (DefaultBit << Position);
254 }
255 else
256 {
257 /* Use the bit specified in the initialization node */
258
259 *Flags |= (((UINT8) Op->Asl.Value.Integer) << Position);
260 }
261}
262
263
264/*******************************************************************************
265 *
266 * FUNCTION: RsCompleteNodeAndGetNext
267 *
268 * PARAMETERS: Op - Resource node to be completed
269 *
270 * RETURN: The next peer to the input node.
271 *
272 * DESCRIPTION: Mark the current node completed and return the next peer.
273 * The node ParseOpcode is set to DEFAULT_ARG, meaning that
274 * this node is to be ignored from now on.
275 *
276 ******************************************************************************/
277
278ACPI_PARSE_OBJECT *
279RsCompleteNodeAndGetNext (
280 ACPI_PARSE_OBJECT *Op)
281{
282
283 /* Mark this node unused */
284
285 Op->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
286
287 /* Move on to the next peer node in the initializer list */
288
289 return (ASL_GET_PEER_NODE (Op));
290}
291
292
293/*******************************************************************************
294 *
295 * FUNCTION: RsCheckListForDuplicates
296 *
297 * PARAMETERS: Op - First op in the initializer list
298 *
299 * RETURN: None
300 *
301 * DESCRIPTION: Check an initializer list for duplicate values. Emits an error
302 * if any duplicates are found.
303 *
304 ******************************************************************************/
305
306void
307RsCheckListForDuplicates (
308 ACPI_PARSE_OBJECT *Op)
309{
310 ACPI_PARSE_OBJECT *NextValueOp = Op;
311 ACPI_PARSE_OBJECT *NextOp;
312 UINT32 Value;
313
314
315 if (!Op)
316 {
317 return;
318 }
319
320 /* Search list once for each value in the list */
321
322 while (NextValueOp)
323 {
324 Value = (UINT32) NextValueOp->Asl.Value.Integer;
325
326 /* Compare this value to all remaining values in the list */
327
328 NextOp = ASL_GET_PEER_NODE (NextValueOp);
329 while (NextOp)
330 {
331 if (NextOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
332 {
333 /* Compare values */
334
335 if (Value == (UINT32) NextOp->Asl.Value.Integer)
336 {
337 /* Emit error only once per duplicate node */
338
339 if (!(NextOp->Asl.CompileFlags & NODE_IS_DUPLICATE))
340 {
341 NextOp->Asl.CompileFlags |= NODE_IS_DUPLICATE;
342 AslError (ASL_ERROR, ASL_MSG_DUPLICATE_ITEM,
343 NextOp, NULL);
344 }
345 }
346 }
347
348 NextOp = ASL_GET_PEER_NODE (NextOp);
349 }
350
351 NextValueOp = ASL_GET_PEER_NODE (NextValueOp);
352 }
353}
354
355
356/*******************************************************************************
357 *
358 * FUNCTION: RsDoOneResourceDescriptor
359 *
360 * PARAMETERS: DescriptorTypeOp - Parent parse node of the descriptor
361 * CurrentByteOffset - Offset in the resource descriptor
362 * buffer.
363 *
364 * RETURN: A valid resource node for the descriptor
365 *
366 * DESCRIPTION: Dispatches the processing of one resource descriptor
367 *
368 ******************************************************************************/
369
370ASL_RESOURCE_NODE *
371RsDoOneResourceDescriptor (
372 ACPI_PARSE_OBJECT *DescriptorTypeOp,
373 UINT32 CurrentByteOffset,
374 UINT8 *State)
375{
376 ASL_RESOURCE_NODE *Rnode = NULL;
377
378
379 /* Determine type of resource */
380
381 switch (DescriptorTypeOp->Asl.ParseOpcode)
382 {
383 case PARSEOP_DMA:
384 Rnode = RsDoDmaDescriptor (DescriptorTypeOp,
385 CurrentByteOffset);
386 break;
387
388 case PARSEOP_DWORDIO:
389 Rnode = RsDoDwordIoDescriptor (DescriptorTypeOp,
390 CurrentByteOffset);
391 break;
392
393 case PARSEOP_DWORDMEMORY:
394 Rnode = RsDoDwordMemoryDescriptor (DescriptorTypeOp,
395 CurrentByteOffset);
396 break;
397
398 case PARSEOP_DWORDSPACE:
399 Rnode = RsDoDwordSpaceDescriptor (DescriptorTypeOp,
400 CurrentByteOffset);
401 break;
402
403 case PARSEOP_ENDDEPENDENTFN:
404 switch (*State)
405 {
406 case ACPI_RSTATE_NORMAL:
407 AslError (ASL_ERROR, ASL_MSG_MISSING_STARTDEPENDENT,
408 DescriptorTypeOp, NULL);
409 break;
410
411 case ACPI_RSTATE_START_DEPENDENT:
412 AslError (ASL_ERROR, ASL_MSG_DEPENDENT_NESTING,
413 DescriptorTypeOp, NULL);
414 break;
415
416 case ACPI_RSTATE_DEPENDENT_LIST:
417 default:
418 break;
419 }
420
421 *State = ACPI_RSTATE_NORMAL;
422 Rnode = RsDoEndDependentDescriptor (DescriptorTypeOp,
423 CurrentByteOffset);
424 break;
425
426 case PARSEOP_EXTENDEDIO:
427 Rnode = RsDoExtendedIoDescriptor (DescriptorTypeOp,
428 CurrentByteOffset);
429 break;
430
431 case PARSEOP_EXTENDEDMEMORY:
432 Rnode = RsDoExtendedMemoryDescriptor (DescriptorTypeOp,
433 CurrentByteOffset);
434 break;
435
436 case PARSEOP_EXTENDEDSPACE:
437 Rnode = RsDoExtendedSpaceDescriptor (DescriptorTypeOp,
438 CurrentByteOffset);
439 break;
440
441 case PARSEOP_FIXEDIO:
442 Rnode = RsDoFixedIoDescriptor (DescriptorTypeOp,
443 CurrentByteOffset);
444 break;
445
446 case PARSEOP_INTERRUPT:
447 Rnode = RsDoInterruptDescriptor (DescriptorTypeOp,
448 CurrentByteOffset);
449 break;
450
451 case PARSEOP_IO:
452 Rnode = RsDoIoDescriptor (DescriptorTypeOp,
453 CurrentByteOffset);
454 break;
455
456 case PARSEOP_IRQ:
457 Rnode = RsDoIrqDescriptor (DescriptorTypeOp,
458 CurrentByteOffset);
459 break;
460
461 case PARSEOP_IRQNOFLAGS:
462 Rnode = RsDoIrqNoFlagsDescriptor (DescriptorTypeOp,
463 CurrentByteOffset);
464 break;
465
466 case PARSEOP_MEMORY24:
467 Rnode = RsDoMemory24Descriptor (DescriptorTypeOp,
468 CurrentByteOffset);
469 break;
470
471 case PARSEOP_MEMORY32:
472 Rnode = RsDoMemory32Descriptor (DescriptorTypeOp,
473 CurrentByteOffset);
474 break;
475
476 case PARSEOP_MEMORY32FIXED:
477 Rnode = RsDoMemory32FixedDescriptor (DescriptorTypeOp,
478 CurrentByteOffset);
479 break;
480
481 case PARSEOP_QWORDIO:
482 Rnode = RsDoQwordIoDescriptor (DescriptorTypeOp,
483 CurrentByteOffset);
484 break;
485
486 case PARSEOP_QWORDMEMORY:
487 Rnode = RsDoQwordMemoryDescriptor (DescriptorTypeOp,
488 CurrentByteOffset);
489 break;
490
491 case PARSEOP_QWORDSPACE:
492 Rnode = RsDoQwordSpaceDescriptor (DescriptorTypeOp,
493 CurrentByteOffset);
494 break;
495
496 case PARSEOP_REGISTER:
497 Rnode = RsDoGeneralRegisterDescriptor (DescriptorTypeOp,
498 CurrentByteOffset);
499 break;
500
501 case PARSEOP_STARTDEPENDENTFN:
502 switch (*State)
503 {
504 case ACPI_RSTATE_START_DEPENDENT:
505 AslError (ASL_ERROR, ASL_MSG_DEPENDENT_NESTING,
506 DescriptorTypeOp, NULL);
507 break;
508
509 case ACPI_RSTATE_NORMAL:
510 case ACPI_RSTATE_DEPENDENT_LIST:
511 default:
512 break;
513 }
514
515 *State = ACPI_RSTATE_START_DEPENDENT;
516 Rnode = RsDoStartDependentDescriptor (DescriptorTypeOp,
517 CurrentByteOffset);
518 *State = ACPI_RSTATE_DEPENDENT_LIST;
519 break;
520
521 case PARSEOP_STARTDEPENDENTFN_NOPRI:
522 switch (*State)
523 {
524 case ACPI_RSTATE_START_DEPENDENT:
525 AslError (ASL_ERROR, ASL_MSG_DEPENDENT_NESTING,
526 DescriptorTypeOp, NULL);
527 break;
528
529 case ACPI_RSTATE_NORMAL:
530 case ACPI_RSTATE_DEPENDENT_LIST:
531 default:
532 break;
533 }
534
535 *State = ACPI_RSTATE_START_DEPENDENT;
536 Rnode = RsDoStartDependentNoPriDescriptor (DescriptorTypeOp,
537 CurrentByteOffset);
538 *State = ACPI_RSTATE_DEPENDENT_LIST;
539 break;
540
541 case PARSEOP_VENDORLONG:
542 Rnode = RsDoVendorLargeDescriptor (DescriptorTypeOp,
543 CurrentByteOffset);
544 break;
545
546 case PARSEOP_VENDORSHORT:
547 Rnode = RsDoVendorSmallDescriptor (DescriptorTypeOp,
548 CurrentByteOffset);
549 break;
550
551 case PARSEOP_WORDBUSNUMBER:
552 Rnode = RsDoWordBusNumberDescriptor (DescriptorTypeOp,
553 CurrentByteOffset);
554 break;
555
556 case PARSEOP_WORDIO:
557 Rnode = RsDoWordIoDescriptor (DescriptorTypeOp,
558 CurrentByteOffset);
559 break;
560
561 case PARSEOP_WORDSPACE:
562 Rnode = RsDoWordSpaceDescriptor (DescriptorTypeOp,
563 CurrentByteOffset);
564 break;
565
566 case PARSEOP_DEFAULT_ARG:
567 /* Just ignore any of these, they are used as fillers/placeholders */
568 break;
569
570 default:
571 printf ("Unknown resource descriptor type [%s]\n",
572 DescriptorTypeOp->Asl.ParseOpName);
573 break;
574 }
575
576 /*
577 * Mark original node as unused, but head of a resource descriptor.
578 * This allows the resource to be installed in the namespace so that
579 * references to the descriptor can be resolved.
580 */
581 DescriptorTypeOp->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
582 DescriptorTypeOp->Asl.CompileFlags = NODE_IS_RESOURCE_DESC;
583
584 return (Rnode);
585}
586
587
588/*******************************************************************************
589 *
590 * FUNCTION: RsLinkDescriptorChain
591 *
592 * PARAMETERS: PreviousRnode - Pointer to the node that will be previous
593 * to the linked node, At exit, set to the
594 * last node in the new chain.
595 * Rnode - Resource node to link into the list
596 *
597 * RETURN: Cumulative buffer byte offset of the new segment of chain
598 *
599 * DESCRIPTION: Link a descriptor chain at the end of an existing chain.
600 *
601 ******************************************************************************/
602
603UINT32
604RsLinkDescriptorChain (
605 ASL_RESOURCE_NODE **PreviousRnode,
606 ASL_RESOURCE_NODE *Rnode)
607{
608 ASL_RESOURCE_NODE *LastRnode;
609 UINT32 CurrentByteOffset;
610
611
612 /* Anything to do? */
613
614 if (!Rnode)
615 {
616 return 0;
617 }
618
619 /* Point the previous node to the new node */
620
621 (*PreviousRnode)->Next = Rnode;
622 CurrentByteOffset = Rnode->BufferLength;
623
624 /* Walk to the end of the chain headed by Rnode */
625
626 LastRnode = Rnode;
627 while (LastRnode->Next)
628 {
629 LastRnode = LastRnode->Next;
630 CurrentByteOffset += LastRnode->BufferLength;
631 }
632
633 /* Previous node becomes the last node in the chain */
634
635 *PreviousRnode = LastRnode;
636 return CurrentByteOffset;
637}
638
639
640/*******************************************************************************
641 *
642 * FUNCTION: RsDoResourceTemplate
643 *
644 * PARAMETERS: Op - Parent of a resource template list
645 *
646 * RETURN: None. Sets input node to point to a list of AML code
647 *
648 * DESCRIPTION: Merge a list of resource descriptors into a single AML buffer,
649 * in preparation for output to the AML output file.
650 *
651 ******************************************************************************/
652
653void
654RsDoResourceTemplate (
655 ACPI_PARSE_OBJECT *Op)
656{
657 ACPI_PARSE_OBJECT *BufferLengthOp;
658 ACPI_PARSE_OBJECT *BufferOp;
659 ACPI_PARSE_OBJECT *DescriptorTypeOp;
660 ACPI_PARSE_OBJECT *LastOp = NULL;
661 AML_RESOURCE *Descriptor;
662 UINT32 CurrentByteOffset = 0;
663 ASL_RESOURCE_NODE HeadRnode;
664 ASL_RESOURCE_NODE *PreviousRnode;
665 ASL_RESOURCE_NODE *Rnode;
666 UINT8 State;
667
668
669 /* ResourceTemplate Opcode is first (Op) */
670 /* Buffer Length node is first child */
671
672 BufferLengthOp = ASL_GET_CHILD_NODE (Op);
673
674 /* Buffer Op is first peer */
675
676 BufferOp = ASL_GET_PEER_NODE (BufferLengthOp);
677
678 /* First Descriptor type is next */
679
680 DescriptorTypeOp = ASL_GET_PEER_NODE (BufferOp);
681
682 /* Process all resource descriptors in the list */
683
684 State = ACPI_RSTATE_NORMAL;
685 PreviousRnode = &HeadRnode;
686 while (DescriptorTypeOp)
687 {
688 Rnode = RsDoOneResourceDescriptor (DescriptorTypeOp, CurrentByteOffset,
689 &State);
690
691 /*
692 * Update current byte offset to indicate the number of bytes from the
693 * start of the buffer. Buffer can include multiple descriptors, we
694 * must keep track of the offset of not only each descriptor, but each
695 * element (field) within each descriptor as well.
696 */
697 CurrentByteOffset += RsLinkDescriptorChain (&PreviousRnode, Rnode);
698
699 /* Get the next descriptor in the list */
700
701 LastOp = DescriptorTypeOp;
702 DescriptorTypeOp = ASL_GET_PEER_NODE (DescriptorTypeOp);
703 }
704
705 if (State == ACPI_RSTATE_DEPENDENT_LIST)
706 {
707 if (LastOp)
708 {
709 LastOp = LastOp->Asl.Parent;
710 }
711 AslError (ASL_ERROR, ASL_MSG_MISSING_ENDDEPENDENT, LastOp, NULL);
712 }
713
714 /*
715 * Insert the EndTag descriptor after all other descriptors have
716 * been processed
717 */
718 Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_END_TAG));
719
720 Descriptor = Rnode->Buffer;
721 Descriptor->EndTag.DescriptorType = ACPI_RESOURCE_NAME_END_TAG |
722 ASL_RDESC_END_TAG_SIZE;
723 Descriptor->EndTag.Checksum = 0;
724
725 CurrentByteOffset += RsLinkDescriptorChain (&PreviousRnode, Rnode);
726
727 /*
728 * Transform the nodes into the following
729 *
730 * Op -> AML_BUFFER_OP
731 * First Child -> BufferLength
732 * Second Child -> Descriptor Buffer (raw byte data)
733 */
734 Op->Asl.ParseOpcode = PARSEOP_BUFFER;
735 Op->Asl.AmlOpcode = AML_BUFFER_OP;
736 Op->Asl.CompileFlags = NODE_AML_PACKAGE;
737
738 BufferLengthOp->Asl.ParseOpcode = PARSEOP_INTEGER;
739 BufferLengthOp->Asl.Value.Integer = CurrentByteOffset;
740
741 (void) OpcSetOptimalIntegerSize (BufferLengthOp);
742
743 BufferOp->Asl.ParseOpcode = PARSEOP_RAW_DATA;
744 BufferOp->Asl.AmlOpcode = AML_RAW_DATA_CHAIN;
745 BufferOp->Asl.AmlOpcodeLength = 0;
746 BufferOp->Asl.AmlLength = CurrentByteOffset;
747 BufferOp->Asl.Value.Buffer = (UINT8 *) HeadRnode.Next;
748
749 return;
750}
751
752