xref: /freebsd/sys/contrib/dev/acpica/components/resources/rsmisc.c (revision 25ecdc7d52770caf1c9b44b5ec11f468f6b636f3)
1 /*******************************************************************************
2  *
3  * Module Name: rsmisc - Miscellaneous resource descriptors
4  *
5  ******************************************************************************/
6 
7 /******************************************************************************
8  *
9  * 1. Copyright Notice
10  *
11  * Some or all of this work - Copyright (c) 1999 - 2021, Intel Corp.
12  * All rights reserved.
13  *
14  * 2. License
15  *
16  * 2.1. This is your license from Intel Corp. under its intellectual property
17  * rights. You may have additional license terms from the party that provided
18  * you this software, covering your right to use that party's intellectual
19  * property rights.
20  *
21  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22  * copy of the source code appearing in this file ("Covered Code") an
23  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24  * base code distributed originally by Intel ("Original Intel Code") to copy,
25  * make derivatives, distribute, use and display any portion of the Covered
26  * Code in any form, with the right to sublicense such rights; and
27  *
28  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29  * license (with the right to sublicense), under only those claims of Intel
30  * patents that are infringed by the Original Intel Code, to make, use, sell,
31  * offer to sell, and import the Covered Code and derivative works thereof
32  * solely to the minimum extent necessary to exercise the above copyright
33  * license, and in no event shall the patent license extend to any additions
34  * to or modifications of the Original Intel Code. No other license or right
35  * is granted directly or by implication, estoppel or otherwise;
36  *
37  * The above copyright and patent license is granted only if the following
38  * conditions are met:
39  *
40  * 3. Conditions
41  *
42  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43  * Redistribution of source code of any substantial portion of the Covered
44  * Code or modification with rights to further distribute source must include
45  * the above Copyright Notice, the above License, this list of Conditions,
46  * and the following Disclaimer and Export Compliance provision. In addition,
47  * Licensee must cause all Covered Code to which Licensee contributes to
48  * contain a file documenting the changes Licensee made to create that Covered
49  * Code and the date of any change. Licensee must include in that file the
50  * documentation of any changes made by any predecessor Licensee. Licensee
51  * must include a prominent statement that the modification is derived,
52  * directly or indirectly, from Original Intel Code.
53  *
54  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55  * Redistribution of source code of any substantial portion of the Covered
56  * Code or modification without rights to further distribute source must
57  * include the following Disclaimer and Export Compliance provision in the
58  * documentation and/or other materials provided with distribution. In
59  * addition, Licensee may not authorize further sublicense of source of any
60  * portion of the Covered Code, and must include terms to the effect that the
61  * license from Licensee to its licensee is limited to the intellectual
62  * property embodied in the software Licensee provides to its licensee, and
63  * not to intellectual property embodied in modifications its licensee may
64  * make.
65  *
66  * 3.3. Redistribution of Executable. Redistribution in executable form of any
67  * substantial portion of the Covered Code or modification must reproduce the
68  * above Copyright Notice, and the following Disclaimer and Export Compliance
69  * provision in the documentation and/or other materials provided with the
70  * distribution.
71  *
72  * 3.4. Intel retains all right, title, and interest in and to the Original
73  * Intel Code.
74  *
75  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76  * Intel shall be used in advertising or otherwise to promote the sale, use or
77  * other dealings in products derived from or relating to the Covered Code
78  * without prior written authorization from Intel.
79  *
80  * 4. Disclaimer and Export Compliance
81  *
82  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83  * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85  * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86  * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
88  * PARTICULAR PURPOSE.
89  *
90  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
97  * LIMITED REMEDY.
98  *
99  * 4.3. Licensee shall not export, either directly or indirectly, any of this
100  * software or system incorporating such software without first obtaining any
101  * required license or other approval from the U. S. Department of Commerce or
102  * any other agency or department of the United States Government. In the
103  * event Licensee exports any such software from the United States or
104  * re-exports any such software from a foreign destination, Licensee shall
105  * ensure that the distribution and export/re-export of the software is in
106  * compliance with all laws, regulations, orders, or other restrictions of the
107  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108  * any of its subsidiaries will export/re-export any technical data, process,
109  * software, or service, directly or indirectly, to any country for which the
110  * United States government or any agency thereof requires an export license,
111  * other governmental approval, or letter of assurance, without first obtaining
112  * such license, approval or letter.
113  *
114  *****************************************************************************
115  *
116  * Alternatively, you may choose to be licensed under the terms of the
117  * following license:
118  *
119  * Redistribution and use in source and binary forms, with or without
120  * modification, are permitted provided that the following conditions
121  * are met:
122  * 1. Redistributions of source code must retain the above copyright
123  *    notice, this list of conditions, and the following disclaimer,
124  *    without modification.
125  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
126  *    substantially similar to the "NO WARRANTY" disclaimer below
127  *    ("Disclaimer") and any redistribution must be conditioned upon
128  *    including a substantially similar Disclaimer requirement for further
129  *    binary redistribution.
130  * 3. Neither the names of the above-listed copyright holders nor the names
131  *    of any contributors may be used to endorse or promote products derived
132  *    from this software without specific prior written permission.
133  *
134  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
135  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
136  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
137  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
138  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
139  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
140  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
141  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
142  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
143  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
144  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
145  *
146  * Alternatively, you may choose to be licensed under the terms of the
147  * GNU General Public License ("GPL") version 2 as published by the Free
148  * Software Foundation.
149  *
150  *****************************************************************************/
151 
152 #include <contrib/dev/acpica/include/acpi.h>
153 #include <contrib/dev/acpica/include/accommon.h>
154 #include <contrib/dev/acpica/include/acresrc.h>
155 
156 #define _COMPONENT          ACPI_RESOURCES
157         ACPI_MODULE_NAME    ("rsmisc")
158 
159 
160 #define INIT_RESOURCE_TYPE(i)       i->ResourceOffset
161 #define INIT_RESOURCE_LENGTH(i)     i->AmlOffset
162 #define INIT_TABLE_LENGTH(i)        i->Value
163 
164 #define COMPARE_OPCODE(i)           i->ResourceOffset
165 #define COMPARE_TARGET(i)           i->AmlOffset
166 #define COMPARE_VALUE(i)            i->Value
167 
168 
169 /*******************************************************************************
170  *
171  * FUNCTION:    AcpiRsConvertAmlToResource
172  *
173  * PARAMETERS:  Resource            - Pointer to the resource descriptor
174  *              Aml                 - Where the AML descriptor is returned
175  *              Info                - Pointer to appropriate conversion table
176  *
177  * RETURN:      Status
178  *
179  * DESCRIPTION: Convert an external AML resource descriptor to the corresponding
180  *              internal resource descriptor
181  *
182  ******************************************************************************/
183 
184 ACPI_STATUS
185 AcpiRsConvertAmlToResource (
186     ACPI_RESOURCE           *Resource,
187     AML_RESOURCE            *Aml,
188     ACPI_RSCONVERT_INFO     *Info)
189 {
190     ACPI_RS_LENGTH          AmlResourceLength;
191     void                    *Source;
192     void                    *Destination;
193     char                    *Target;
194     UINT8                   Count;
195     UINT8                   FlagsMode = FALSE;
196     UINT16                  ItemCount = 0;
197     UINT16                  Temp16 = 0;
198 
199 
200     ACPI_FUNCTION_TRACE (RsConvertAmlToResource);
201 
202 
203     if (!Info)
204     {
205         return_ACPI_STATUS (AE_BAD_PARAMETER);
206     }
207 
208     if (((ACPI_SIZE) Resource) & 0x3)
209     {
210         /* Each internal resource struct is expected to be 32-bit aligned */
211 
212         ACPI_WARNING ((AE_INFO,
213             "Misaligned resource pointer (get): %p Type 0x%2.2X Length %u",
214             Resource, Resource->Type, Resource->Length));
215     }
216 
217     /* Extract the resource Length field (does not include header length) */
218 
219     AmlResourceLength = AcpiUtGetResourceLength (Aml);
220 
221     /*
222      * First table entry must be ACPI_RSC_INITxxx and must contain the
223      * table length (# of table entries)
224      */
225     Count = INIT_TABLE_LENGTH (Info);
226     while (Count)
227     {
228         Target = NULL;
229 
230         /*
231          * Source is the external AML byte stream buffer,
232          * destination is the internal resource descriptor
233          */
234         Source = ACPI_ADD_PTR (void, Aml, Info->AmlOffset);
235         Destination = ACPI_ADD_PTR (void, Resource, Info->ResourceOffset);
236 
237         switch (Info->Opcode)
238         {
239         case ACPI_RSC_INITGET:
240             /*
241              * Get the resource type and the initial (minimum) length
242              */
243             memset (Resource, 0, INIT_RESOURCE_LENGTH (Info));
244             Resource->Type = INIT_RESOURCE_TYPE (Info);
245             Resource->Length = INIT_RESOURCE_LENGTH (Info);
246             break;
247 
248         case ACPI_RSC_INITSET:
249             break;
250 
251         case ACPI_RSC_FLAGINIT:
252 
253             FlagsMode = TRUE;
254             break;
255 
256         case ACPI_RSC_1BITFLAG:
257             /*
258              * Mask and shift the flag bit
259              */
260             ACPI_SET8 (Destination,
261                 ((ACPI_GET8 (Source) >> Info->Value) & 0x01));
262             break;
263 
264         case ACPI_RSC_2BITFLAG:
265             /*
266              * Mask and shift the flag bits
267              */
268             ACPI_SET8 (Destination,
269                 ((ACPI_GET8 (Source) >> Info->Value) & 0x03));
270             break;
271 
272         case ACPI_RSC_3BITFLAG:
273             /*
274              * Mask and shift the flag bits
275              */
276             ACPI_SET8 (Destination,
277                 ((ACPI_GET8 (Source) >> Info->Value) & 0x07));
278             break;
279 
280         case ACPI_RSC_6BITFLAG:
281             /*
282              * Mask and shift the flag bits
283              */
284             ACPI_SET8 (Destination,
285                 ((ACPI_GET8 (Source) >> Info->Value) & 0x3F));
286             break;
287 
288         case ACPI_RSC_COUNT:
289 
290             ItemCount = ACPI_GET8 (Source);
291             ACPI_SET8 (Destination, ItemCount);
292 
293             Resource->Length = Resource->Length +
294                 (Info->Value * (ItemCount - 1));
295             break;
296 
297         case ACPI_RSC_COUNT16:
298 
299             ItemCount = AmlResourceLength;
300             ACPI_SET16 (Destination, ItemCount);
301 
302             Resource->Length = Resource->Length +
303                 (Info->Value * (ItemCount - 1));
304             break;
305 
306         case ACPI_RSC_COUNT_GPIO_PIN:
307 
308             Target = ACPI_ADD_PTR (void, Aml, Info->Value);
309             ItemCount = ACPI_GET16 (Target) - ACPI_GET16 (Source);
310 
311             Resource->Length = Resource->Length + ItemCount;
312             ItemCount = ItemCount / 2;
313             ACPI_SET16 (Destination, ItemCount);
314             break;
315 
316         case ACPI_RSC_COUNT_GPIO_VEN:
317 
318             ItemCount = ACPI_GET8 (Source);
319             ACPI_SET8 (Destination, ItemCount);
320 
321             Resource->Length = Resource->Length + (Info->Value * ItemCount);
322             break;
323 
324         case ACPI_RSC_COUNT_GPIO_RES:
325             /*
326              * Vendor data is optional (length/offset may both be zero)
327              * Examine vendor data length field first
328              */
329             Target = ACPI_ADD_PTR (void, Aml, (Info->Value + 2));
330             if (ACPI_GET16 (Target))
331             {
332                 /* Use vendor offset to get resource source length */
333 
334                 Target = ACPI_ADD_PTR (void, Aml, Info->Value);
335                 ItemCount = ACPI_GET16 (Target) - ACPI_GET16 (Source);
336             }
337             else
338             {
339                 /* No vendor data to worry about */
340 
341                 ItemCount = Aml->LargeHeader.ResourceLength +
342                     sizeof (AML_RESOURCE_LARGE_HEADER) -
343                     ACPI_GET16 (Source);
344             }
345 
346             Resource->Length = Resource->Length + ItemCount;
347             ACPI_SET16 (Destination, ItemCount);
348             break;
349 
350         case ACPI_RSC_COUNT_SERIAL_VEN:
351 
352             ItemCount = ACPI_GET16 (Source) - Info->Value;
353 
354             Resource->Length = Resource->Length + ItemCount;
355             ACPI_SET16 (Destination, ItemCount);
356             break;
357 
358         case ACPI_RSC_COUNT_SERIAL_RES:
359 
360             ItemCount = (AmlResourceLength +
361                 sizeof (AML_RESOURCE_LARGE_HEADER)) -
362                 ACPI_GET16 (Source) - Info->Value;
363 
364             Resource->Length = Resource->Length + ItemCount;
365             ACPI_SET16 (Destination, ItemCount);
366             break;
367 
368         case ACPI_RSC_LENGTH:
369 
370             Resource->Length = Resource->Length + Info->Value;
371             break;
372 
373         case ACPI_RSC_MOVE8:
374         case ACPI_RSC_MOVE16:
375         case ACPI_RSC_MOVE32:
376         case ACPI_RSC_MOVE64:
377             /*
378              * Raw data move. Use the Info value field unless ItemCount has
379              * been previously initialized via a COUNT opcode
380              */
381             if (Info->Value)
382             {
383                 ItemCount = Info->Value;
384             }
385             AcpiRsMoveData (Destination, Source, ItemCount, Info->Opcode);
386             break;
387 
388         case ACPI_RSC_MOVE_GPIO_PIN:
389 
390             /* Generate and set the PIN data pointer */
391 
392             Target = (char *) ACPI_ADD_PTR (void, Resource,
393                 (Resource->Length - ItemCount * 2));
394             *(UINT16 **) Destination = ACPI_CAST_PTR (UINT16, Target);
395 
396             /* Copy the PIN data */
397 
398             Source = ACPI_ADD_PTR (void, Aml, ACPI_GET16 (Source));
399             AcpiRsMoveData (Target, Source, ItemCount, Info->Opcode);
400             break;
401 
402         case ACPI_RSC_MOVE_GPIO_RES:
403 
404             /* Generate and set the ResourceSource string pointer */
405 
406             Target = (char *) ACPI_ADD_PTR (void, Resource,
407                 (Resource->Length - ItemCount));
408             *(UINT8 **) Destination = ACPI_CAST_PTR (UINT8, Target);
409 
410             /* Copy the ResourceSource string */
411 
412             Source = ACPI_ADD_PTR (void, Aml, ACPI_GET16 (Source));
413             AcpiRsMoveData (Target, Source, ItemCount, Info->Opcode);
414             break;
415 
416         case ACPI_RSC_MOVE_SERIAL_VEN:
417 
418             /* Generate and set the Vendor Data pointer */
419 
420             Target = (char *) ACPI_ADD_PTR (void, Resource,
421                 (Resource->Length - ItemCount));
422             *(UINT8 **) Destination = ACPI_CAST_PTR (UINT8, Target);
423 
424             /* Copy the Vendor Data */
425 
426             Source = ACPI_ADD_PTR (void, Aml, Info->Value);
427             AcpiRsMoveData (Target, Source, ItemCount, Info->Opcode);
428             break;
429 
430         case ACPI_RSC_MOVE_SERIAL_RES:
431 
432             /* Generate and set the ResourceSource string pointer */
433 
434             Target = (char *) ACPI_ADD_PTR (void, Resource,
435                 (Resource->Length - ItemCount));
436             *(UINT8 **) Destination = ACPI_CAST_PTR (UINT8, Target);
437 
438             /* Copy the ResourceSource string */
439 
440             Source = ACPI_ADD_PTR (
441                 void, Aml, (ACPI_GET16 (Source) + Info->Value));
442             AcpiRsMoveData (Target, Source, ItemCount, Info->Opcode);
443             break;
444 
445         case ACPI_RSC_SET8:
446 
447             memset (Destination, Info->AmlOffset, Info->Value);
448             break;
449 
450         case ACPI_RSC_DATA8:
451 
452             Target = ACPI_ADD_PTR (char, Resource, Info->Value);
453             memcpy (Destination, Source,  ACPI_GET16 (Target));
454             break;
455 
456         case ACPI_RSC_ADDRESS:
457             /*
458              * Common handler for address descriptor flags
459              */
460             if (!AcpiRsGetAddressCommon (Resource, Aml))
461             {
462                 return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE);
463             }
464             break;
465 
466         case ACPI_RSC_SOURCE:
467             /*
468              * Optional ResourceSource (Index and String)
469              */
470             Resource->Length +=
471                 AcpiRsGetResourceSource (AmlResourceLength, Info->Value,
472                     Destination, Aml, NULL);
473             break;
474 
475         case ACPI_RSC_SOURCEX:
476             /*
477              * Optional ResourceSource (Index and String). This is the more
478              * complicated case used by the Interrupt() macro
479              */
480             Target = ACPI_ADD_PTR (char, Resource,
481                 Info->AmlOffset + (ItemCount * 4));
482 
483             Resource->Length +=
484                 AcpiRsGetResourceSource (AmlResourceLength, (ACPI_RS_LENGTH)
485                     (((ItemCount - 1) * sizeof (UINT32)) + Info->Value),
486                     Destination, Aml, Target);
487             break;
488 
489         case ACPI_RSC_BITMASK:
490             /*
491              * 8-bit encoded bitmask (DMA macro)
492              */
493             ItemCount = AcpiRsDecodeBitmask (ACPI_GET8 (Source), Destination);
494             if (ItemCount)
495             {
496                 Resource->Length += (ItemCount - 1);
497             }
498 
499             Target = ACPI_ADD_PTR (char, Resource, Info->Value);
500             ACPI_SET8 (Target, ItemCount);
501             break;
502 
503         case ACPI_RSC_BITMASK16:
504             /*
505              * 16-bit encoded bitmask (IRQ macro)
506              */
507             ACPI_MOVE_16_TO_16 (&Temp16, Source);
508 
509             ItemCount = AcpiRsDecodeBitmask (Temp16, Destination);
510             if (ItemCount)
511             {
512                 Resource->Length += (ItemCount - 1);
513             }
514 
515             Target = ACPI_ADD_PTR (char, Resource, Info->Value);
516             ACPI_SET8 (Target, ItemCount);
517             break;
518 
519         case ACPI_RSC_EXIT_NE:
520             /*
521              * Control - Exit conversion if not equal
522              */
523             switch (Info->ResourceOffset)
524             {
525             case ACPI_RSC_COMPARE_AML_LENGTH:
526 
527                 if (AmlResourceLength != Info->Value)
528                 {
529                     goto Exit;
530                 }
531                 break;
532 
533             case ACPI_RSC_COMPARE_VALUE:
534 
535                 if (ACPI_GET8 (Source) != Info->Value)
536                 {
537                     goto Exit;
538                 }
539                 break;
540 
541             default:
542 
543                 ACPI_ERROR ((AE_INFO, "Invalid conversion sub-opcode"));
544                 return_ACPI_STATUS (AE_BAD_PARAMETER);
545             }
546             break;
547 
548         default:
549 
550             ACPI_ERROR ((AE_INFO, "Invalid conversion opcode"));
551             return_ACPI_STATUS (AE_BAD_PARAMETER);
552         }
553 
554         Count--;
555         Info++;
556     }
557 
558 Exit:
559     if (!FlagsMode)
560     {
561         /* Round the resource struct length up to the next boundary (32 or 64) */
562 
563         Resource->Length = (UINT32)
564             ACPI_ROUND_UP_TO_NATIVE_WORD (Resource->Length);
565     }
566     return_ACPI_STATUS (AE_OK);
567 }
568 
569 
570 /*******************************************************************************
571  *
572  * FUNCTION:    AcpiRsConvertResourceToAml
573  *
574  * PARAMETERS:  Resource            - Pointer to the resource descriptor
575  *              Aml                 - Where the AML descriptor is returned
576  *              Info                - Pointer to appropriate conversion table
577  *
578  * RETURN:      Status
579  *
580  * DESCRIPTION: Convert an internal resource descriptor to the corresponding
581  *              external AML resource descriptor.
582  *
583  ******************************************************************************/
584 
585 ACPI_STATUS
586 AcpiRsConvertResourceToAml (
587     ACPI_RESOURCE           *Resource,
588     AML_RESOURCE            *Aml,
589     ACPI_RSCONVERT_INFO     *Info)
590 {
591     void                    *Source = NULL;
592     void                    *Destination;
593     char                    *Target;
594     ACPI_RSDESC_SIZE        AmlLength = 0;
595     UINT8                   Count;
596     UINT16                  Temp16 = 0;
597     UINT16                  ItemCount = 0;
598 
599 
600     ACPI_FUNCTION_TRACE (RsConvertResourceToAml);
601 
602 
603     if (!Info)
604     {
605         return_ACPI_STATUS (AE_BAD_PARAMETER);
606     }
607 
608     /*
609      * First table entry must be ACPI_RSC_INITxxx and must contain the
610      * table length (# of table entries)
611      */
612     Count = INIT_TABLE_LENGTH (Info);
613 
614     while (Count)
615     {
616         /*
617          * Source is the internal resource descriptor,
618          * destination is the external AML byte stream buffer
619          */
620         Source = ACPI_ADD_PTR (void, Resource, Info->ResourceOffset);
621         Destination = ACPI_ADD_PTR (void, Aml, Info->AmlOffset);
622 
623         switch (Info->Opcode)
624         {
625         case ACPI_RSC_INITSET:
626 
627             memset (Aml, 0, INIT_RESOURCE_LENGTH (Info));
628             AmlLength = INIT_RESOURCE_LENGTH (Info);
629             AcpiRsSetResourceHeader (
630                 INIT_RESOURCE_TYPE (Info), AmlLength, Aml);
631             break;
632 
633         case ACPI_RSC_INITGET:
634             break;
635 
636         case ACPI_RSC_FLAGINIT:
637             /*
638              * Clear the flag byte
639              */
640             ACPI_SET8 (Destination, 0);
641             break;
642 
643         case ACPI_RSC_1BITFLAG:
644             /*
645              * Mask and shift the flag bit
646              */
647             ACPI_SET_BIT (*ACPI_CAST8 (Destination), (UINT8)
648                 ((ACPI_GET8 (Source) & 0x01) << Info->Value));
649             break;
650 
651         case ACPI_RSC_2BITFLAG:
652             /*
653              * Mask and shift the flag bits
654              */
655             ACPI_SET_BIT (*ACPI_CAST8 (Destination), (UINT8)
656                 ((ACPI_GET8 (Source) & 0x03) << Info->Value));
657             break;
658 
659         case ACPI_RSC_3BITFLAG:
660             /*
661              * Mask and shift the flag bits
662              */
663             ACPI_SET_BIT (*ACPI_CAST8 (Destination), (UINT8)
664                 ((ACPI_GET8 (Source) & 0x07) << Info->Value));
665             break;
666 
667         case ACPI_RSC_6BITFLAG:
668             /*
669              * Mask and shift the flag bits
670              */
671             ACPI_SET_BIT (*ACPI_CAST8 (Destination), (UINT8)
672                 ((ACPI_GET8 (Source) & 0x3F) << Info->Value));
673             break;
674 
675         case ACPI_RSC_COUNT:
676 
677             ItemCount = ACPI_GET8 (Source);
678             ACPI_SET8 (Destination, ItemCount);
679 
680             AmlLength = (UINT16)
681                 (AmlLength + (Info->Value * (ItemCount - 1)));
682             break;
683 
684         case ACPI_RSC_COUNT16:
685 
686             ItemCount = ACPI_GET16 (Source);
687             AmlLength = (UINT16) (AmlLength + ItemCount);
688             AcpiRsSetResourceLength (AmlLength, Aml);
689             break;
690 
691         case ACPI_RSC_COUNT_GPIO_PIN:
692 
693             ItemCount = ACPI_GET16 (Source);
694             ACPI_SET16 (Destination, AmlLength);
695 
696             AmlLength = (UINT16) (AmlLength + ItemCount * 2);
697             Target = ACPI_ADD_PTR (void, Aml, Info->Value);
698             ACPI_SET16 (Target, AmlLength);
699             AcpiRsSetResourceLength (AmlLength, Aml);
700             break;
701 
702         case ACPI_RSC_COUNT_GPIO_VEN:
703 
704             ItemCount = ACPI_GET16 (Source);
705             ACPI_SET16 (Destination, ItemCount);
706 
707             AmlLength = (UINT16) (
708                 AmlLength + (Info->Value * ItemCount));
709             AcpiRsSetResourceLength (AmlLength, Aml);
710             break;
711 
712         case ACPI_RSC_COUNT_GPIO_RES:
713 
714             /* Set resource source string length */
715 
716             ItemCount = ACPI_GET16 (Source);
717             ACPI_SET16 (Destination, AmlLength);
718 
719             /* Compute offset for the Vendor Data */
720 
721             AmlLength = (UINT16) (AmlLength + ItemCount);
722             Target = ACPI_ADD_PTR (void, Aml, Info->Value);
723 
724             /* Set vendor offset only if there is vendor data */
725 
726             ACPI_SET16 (Target, AmlLength);
727 
728             AcpiRsSetResourceLength (AmlLength, Aml);
729             break;
730 
731         case ACPI_RSC_COUNT_SERIAL_VEN:
732 
733             ItemCount = ACPI_GET16 (Source);
734             ACPI_SET16 (Destination, ItemCount + Info->Value);
735             AmlLength = (UINT16) (AmlLength + ItemCount);
736             AcpiRsSetResourceLength (AmlLength, Aml);
737             break;
738 
739         case ACPI_RSC_COUNT_SERIAL_RES:
740 
741             ItemCount = ACPI_GET16 (Source);
742             AmlLength = (UINT16) (AmlLength + ItemCount);
743             AcpiRsSetResourceLength (AmlLength, Aml);
744             break;
745 
746         case ACPI_RSC_LENGTH:
747 
748             AcpiRsSetResourceLength (Info->Value, Aml);
749             break;
750 
751         case ACPI_RSC_MOVE8:
752         case ACPI_RSC_MOVE16:
753         case ACPI_RSC_MOVE32:
754         case ACPI_RSC_MOVE64:
755 
756             if (Info->Value)
757             {
758                 ItemCount = Info->Value;
759             }
760             AcpiRsMoveData (Destination, Source, ItemCount, Info->Opcode);
761             break;
762 
763         case ACPI_RSC_MOVE_GPIO_PIN:
764 
765             Destination = (char *) ACPI_ADD_PTR (void, Aml,
766                 ACPI_GET16 (Destination));
767             Source = * (UINT16 **) Source;
768             AcpiRsMoveData (Destination, Source, ItemCount, Info->Opcode);
769             break;
770 
771         case ACPI_RSC_MOVE_GPIO_RES:
772 
773             /* Used for both ResourceSource string and VendorData */
774 
775             Destination = (char *) ACPI_ADD_PTR (void, Aml,
776                 ACPI_GET16 (Destination));
777             Source = * (UINT8 **) Source;
778             AcpiRsMoveData (Destination, Source, ItemCount, Info->Opcode);
779             break;
780 
781         case ACPI_RSC_MOVE_SERIAL_VEN:
782 
783             Destination = (char *) ACPI_ADD_PTR (void, Aml,
784                 (AmlLength - ItemCount));
785             Source = * (UINT8 **) Source;
786             AcpiRsMoveData (Destination, Source, ItemCount, Info->Opcode);
787             break;
788 
789         case ACPI_RSC_MOVE_SERIAL_RES:
790 
791             Destination = (char *) ACPI_ADD_PTR (void, Aml,
792                 (AmlLength - ItemCount));
793             Source = * (UINT8 **) Source;
794             AcpiRsMoveData (Destination, Source, ItemCount, Info->Opcode);
795             break;
796 
797         case ACPI_RSC_ADDRESS:
798 
799             /* Set the Resource Type, General Flags, and Type-Specific Flags */
800 
801             AcpiRsSetAddressCommon (Aml, Resource);
802             break;
803 
804         case ACPI_RSC_SOURCEX:
805             /*
806              * Optional ResourceSource (Index and String)
807              */
808             AmlLength = AcpiRsSetResourceSource (
809                 Aml, (ACPI_RS_LENGTH) AmlLength, Source);
810             AcpiRsSetResourceLength (AmlLength, Aml);
811             break;
812 
813         case ACPI_RSC_SOURCE:
814             /*
815              * Optional ResourceSource (Index and String). This is the more
816              * complicated case used by the Interrupt() macro
817              */
818             AmlLength = AcpiRsSetResourceSource (Aml, Info->Value, Source);
819             AcpiRsSetResourceLength (AmlLength, Aml);
820             break;
821 
822         case ACPI_RSC_BITMASK:
823             /*
824              * 8-bit encoded bitmask (DMA macro)
825              */
826             ACPI_SET8 (Destination,
827                 AcpiRsEncodeBitmask (Source,
828                     *ACPI_ADD_PTR (UINT8, Resource, Info->Value)));
829             break;
830 
831         case ACPI_RSC_BITMASK16:
832             /*
833              * 16-bit encoded bitmask (IRQ macro)
834              */
835             Temp16 = AcpiRsEncodeBitmask (
836                 Source, *ACPI_ADD_PTR (UINT8, Resource, Info->Value));
837             ACPI_MOVE_16_TO_16 (Destination, &Temp16);
838             break;
839 
840         case ACPI_RSC_EXIT_LE:
841             /*
842              * Control - Exit conversion if less than or equal
843              */
844             if (ItemCount <= Info->Value)
845             {
846                 goto Exit;
847             }
848             break;
849 
850         case ACPI_RSC_EXIT_NE:
851             /*
852              * Control - Exit conversion if not equal
853              */
854             switch (COMPARE_OPCODE (Info))
855             {
856             case ACPI_RSC_COMPARE_VALUE:
857 
858                 if (*ACPI_ADD_PTR (UINT8, Resource,
859                     COMPARE_TARGET (Info)) != COMPARE_VALUE (Info))
860                 {
861                     goto Exit;
862                 }
863                 break;
864 
865             default:
866 
867                 ACPI_ERROR ((AE_INFO, "Invalid conversion sub-opcode"));
868                 return_ACPI_STATUS (AE_BAD_PARAMETER);
869             }
870             break;
871 
872         case ACPI_RSC_EXIT_EQ:
873             /*
874              * Control - Exit conversion if equal
875              */
876             if (*ACPI_ADD_PTR (UINT8, Resource,
877                 COMPARE_TARGET (Info)) == COMPARE_VALUE (Info))
878             {
879                 goto Exit;
880             }
881             break;
882 
883         default:
884 
885             ACPI_ERROR ((AE_INFO, "Invalid conversion opcode"));
886             return_ACPI_STATUS (AE_BAD_PARAMETER);
887         }
888 
889         Count--;
890         Info++;
891     }
892 
893 Exit:
894     return_ACPI_STATUS (AE_OK);
895 }
896 
897 
898 #if 0
899 /* Previous resource validations */
900 
901     if (Aml->ExtAddress64.RevisionID !=
902         AML_RESOURCE_EXTENDED_ADDRESS_REVISION)
903     {
904         return_ACPI_STATUS (AE_SUPPORT);
905     }
906 
907     if (Resource->Data.StartDpf.PerformanceRobustness >= 3)
908     {
909         return_ACPI_STATUS (AE_AML_BAD_RESOURCE_VALUE);
910     }
911 
912     if (((Aml->Irq.Flags & 0x09) == 0x00) ||
913         ((Aml->Irq.Flags & 0x09) == 0x09))
914     {
915         /*
916          * Only [ActiveHigh, EdgeSensitive] or [ActiveLow, LevelSensitive]
917          * polarity/trigger interrupts are allowed (ACPI spec, section
918          * "IRQ Format"), so 0x00 and 0x09 are illegal.
919          */
920         ACPI_ERROR ((AE_INFO,
921             "Invalid interrupt polarity/trigger in resource list, 0x%X",
922             Aml->Irq.Flags));
923         return_ACPI_STATUS (AE_BAD_DATA);
924     }
925 
926     Resource->Data.ExtendedIrq.InterruptCount = Temp8;
927     if (Temp8 < 1)
928     {
929         /* Must have at least one IRQ */
930 
931         return_ACPI_STATUS (AE_AML_BAD_RESOURCE_LENGTH);
932     }
933 
934     if (Resource->Data.Dma.Transfer == 0x03)
935     {
936         ACPI_ERROR ((AE_INFO,
937             "Invalid DMA.Transfer preference (3)"));
938         return_ACPI_STATUS (AE_BAD_DATA);
939     }
940 #endif
941