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1// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
2/*******************************************************************************
3 *
4 * Module Name: rsmisc - Miscellaneous resource descriptors
5 *
6 ******************************************************************************/
7
8#include <acpi/acpi.h>
9#include "accommon.h"
10#include "acresrc.h"
11
12#define _COMPONENT ACPI_RESOURCES
13ACPI_MODULE_NAME("rsmisc")
14#define INIT_RESOURCE_TYPE(i) i->resource_offset
15#define INIT_RESOURCE_LENGTH(i) i->aml_offset
16#define INIT_TABLE_LENGTH(i) i->value
17#define COMPARE_OPCODE(i) i->resource_offset
18#define COMPARE_TARGET(i) i->aml_offset
19#define COMPARE_VALUE(i) i->value
20/*******************************************************************************
21 *
22 * FUNCTION: acpi_rs_convert_aml_to_resource
23 *
24 * PARAMETERS: resource - Pointer to the resource descriptor
25 * aml - Where the AML descriptor is returned
26 * info - Pointer to appropriate conversion table
27 *
28 * RETURN: Status
29 *
30 * DESCRIPTION: Convert an external AML resource descriptor to the corresponding
31 * internal resource descriptor
32 *
33 ******************************************************************************/
34acpi_status
35acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
36 union aml_resource *aml,
37 struct acpi_rsconvert_info *info)
38{
39 acpi_rs_length aml_resource_length;
40 void *source;
41 void *destination;
42 char *target;
43 u8 count;
44 u8 flags_mode = FALSE;
45 u16 item_count = 0;
46 u16 temp16 = 0;
47
48 ACPI_FUNCTION_TRACE(rs_convert_aml_to_resource);
49
50 if (!info) {
51 return_ACPI_STATUS(AE_BAD_PARAMETER);
52 }
53
54 if (((acpi_size)resource) & 0x3) {
55
56 /* Each internal resource struct is expected to be 32-bit aligned */
57
58 ACPI_WARNING((AE_INFO,
59 "Misaligned resource pointer (get): %p Type 0x%2.2X Length %u",
60 resource, resource->type, resource->length));
61 }
62
63 /* Extract the resource Length field (does not include header length) */
64
65 aml_resource_length = acpi_ut_get_resource_length(aml);
66
67 /*
68 * First table entry must be ACPI_RSC_INITxxx and must contain the
69 * table length (# of table entries)
70 */
71 count = INIT_TABLE_LENGTH(info);
72 while (count) {
73 target = NULL;
74
75 /*
76 * Source is the external AML byte stream buffer,
77 * destination is the internal resource descriptor
78 */
79 source = ACPI_ADD_PTR(void, aml, info->aml_offset);
80 destination =
81 ACPI_ADD_PTR(void, resource, info->resource_offset);
82
83 switch (info->opcode) {
84 case ACPI_RSC_INITGET:
85 /*
86 * Get the resource type and the initial (minimum) length
87 */
88 memset(resource, 0, INIT_RESOURCE_LENGTH(info));
89 resource->type = INIT_RESOURCE_TYPE(info);
90 resource->length = INIT_RESOURCE_LENGTH(info);
91 break;
92
93 case ACPI_RSC_INITSET:
94 break;
95
96 case ACPI_RSC_FLAGINIT:
97
98 flags_mode = TRUE;
99 break;
100
101 case ACPI_RSC_1BITFLAG:
102 /*
103 * Mask and shift the flag bit
104 */
105 ACPI_SET8(destination,
106 ((ACPI_GET8(source) >> info->value) & 0x01));
107 break;
108
109 case ACPI_RSC_2BITFLAG:
110 /*
111 * Mask and shift the flag bits
112 */
113 ACPI_SET8(destination,
114 ((ACPI_GET8(source) >> info->value) & 0x03));
115 break;
116
117 case ACPI_RSC_3BITFLAG:
118 /*
119 * Mask and shift the flag bits
120 */
121 ACPI_SET8(destination,
122 ((ACPI_GET8(source) >> info->value) & 0x07));
123 break;
124
125 case ACPI_RSC_6BITFLAG:
126 /*
127 * Mask and shift the flag bits
128 */
129 ACPI_SET8(destination,
130 ((ACPI_GET8(source) >> info->value) & 0x3F));
131 break;
132
133 case ACPI_RSC_COUNT:
134
135 item_count = ACPI_GET8(source);
136 ACPI_SET8(destination, item_count);
137
138 resource->length = resource->length +
139 (info->value * (item_count - 1));
140 break;
141
142 case ACPI_RSC_COUNT16:
143
144 item_count = aml_resource_length;
145 ACPI_SET16(destination, item_count);
146
147 resource->length = resource->length +
148 (info->value * (item_count - 1));
149 break;
150
151 case ACPI_RSC_COUNT_GPIO_PIN:
152
153 target = ACPI_ADD_PTR(void, aml, info->value);
154 item_count = ACPI_GET16(target) - ACPI_GET16(source);
155
156 resource->length = resource->length + item_count;
157 item_count = item_count / 2;
158 ACPI_SET16(destination, item_count);
159 break;
160
161 case ACPI_RSC_COUNT_GPIO_VEN:
162
163 item_count = ACPI_GET8(source);
164 ACPI_SET8(destination, item_count);
165
166 resource->length =
167 resource->length + (info->value * item_count);
168 break;
169
170 case ACPI_RSC_COUNT_GPIO_RES:
171 /*
172 * Vendor data is optional (length/offset may both be zero)
173 * Examine vendor data length field first
174 */
175 target = ACPI_ADD_PTR(void, aml, (info->value + 2));
176 if (ACPI_GET16(target)) {
177
178 /* Use vendor offset to get resource source length */
179
180 target = ACPI_ADD_PTR(void, aml, info->value);
181 item_count =
182 ACPI_GET16(target) - ACPI_GET16(source);
183 } else {
184 /* No vendor data to worry about */
185
186 item_count = aml->large_header.resource_length +
187 sizeof(struct aml_resource_large_header) -
188 ACPI_GET16(source);
189 }
190
191 resource->length = resource->length + item_count;
192 ACPI_SET16(destination, item_count);
193 break;
194
195 case ACPI_RSC_COUNT_SERIAL_VEN:
196
197 ACPI_MOVE_16_TO_16(&temp16, source);
198 item_count = temp16 - info->value;
199
200 resource->length = resource->length + item_count;
201 ACPI_SET16(destination, item_count);
202 break;
203
204 case ACPI_RSC_COUNT_SERIAL_RES:
205
206 ACPI_MOVE_16_TO_16(&temp16, source);
207 item_count = (aml_resource_length +
208 sizeof(struct aml_resource_large_header))
209 - temp16 - info->value;
210
211 resource->length = resource->length + item_count;
212 ACPI_SET16(destination, item_count);
213 break;
214
215 case ACPI_RSC_LENGTH:
216
217 resource->length = resource->length + info->value;
218 break;
219
220 case ACPI_RSC_MOVE8:
221 case ACPI_RSC_MOVE16:
222 case ACPI_RSC_MOVE32:
223 case ACPI_RSC_MOVE64:
224 /*
225 * Raw data move. Use the Info value field unless item_count has
226 * been previously initialized via a COUNT opcode
227 */
228 if (info->value) {
229 item_count = info->value;
230 }
231 acpi_rs_move_data(destination, source, item_count,
232 info->opcode);
233 break;
234
235 case ACPI_RSC_MOVE_GPIO_PIN:
236
237 /* Generate and set the PIN data pointer */
238
239 target = (char *)ACPI_ADD_PTR(void, resource,
240 (resource->length -
241 item_count * 2));
242 *(u16 **)destination = ACPI_CAST_PTR(u16, target);
243
244 /* Copy the PIN data */
245
246 source = ACPI_ADD_PTR(void, aml, ACPI_GET16(source));
247 acpi_rs_move_data(target, source, item_count,
248 info->opcode);
249 break;
250
251 case ACPI_RSC_MOVE_GPIO_RES:
252
253 /* Generate and set the resource_source string pointer */
254
255 target = (char *)ACPI_ADD_PTR(void, resource,
256 (resource->length -
257 item_count));
258 *(u8 **)destination = ACPI_CAST_PTR(u8, target);
259
260 /* Copy the resource_source string */
261
262 source = ACPI_ADD_PTR(void, aml, ACPI_GET16(source));
263 acpi_rs_move_data(target, source, item_count,
264 info->opcode);
265 break;
266
267 case ACPI_RSC_MOVE_SERIAL_VEN:
268
269 /* Generate and set the Vendor Data pointer */
270
271 target = (char *)ACPI_ADD_PTR(void, resource,
272 (resource->length -
273 item_count));
274 *(u8 **)destination = ACPI_CAST_PTR(u8, target);
275
276 /* Copy the Vendor Data */
277
278 source = ACPI_ADD_PTR(void, aml, info->value);
279 acpi_rs_move_data(target, source, item_count,
280 info->opcode);
281 break;
282
283 case ACPI_RSC_MOVE_SERIAL_RES:
284
285 /* Generate and set the resource_source string pointer */
286
287 target = (char *)ACPI_ADD_PTR(void, resource,
288 (resource->length -
289 item_count));
290 *(u8 **)destination = ACPI_CAST_PTR(u8, target);
291
292 /* Copy the resource_source string */
293
294 ACPI_MOVE_16_TO_16(&temp16, source);
295 source =
296 ACPI_ADD_PTR(void, aml, (temp16 + info->value));
297 acpi_rs_move_data(target, source, item_count,
298 info->opcode);
299 break;
300
301 case ACPI_RSC_SET8:
302
303 memset(destination, info->aml_offset, info->value);
304 break;
305
306 case ACPI_RSC_DATA8:
307
308 target = ACPI_ADD_PTR(char, resource, info->value);
309 memcpy(destination, source, ACPI_GET16(target));
310 break;
311
312 case ACPI_RSC_ADDRESS:
313 /*
314 * Common handler for address descriptor flags
315 */
316 if (!acpi_rs_get_address_common(resource, aml)) {
317 return_ACPI_STATUS
318 (AE_AML_INVALID_RESOURCE_TYPE);
319 }
320 break;
321
322 case ACPI_RSC_SOURCE:
323 /*
324 * Optional resource_source (Index and String)
325 */
326 resource->length +=
327 acpi_rs_get_resource_source(aml_resource_length,
328 info->value,
329 destination, aml, NULL);
330 break;
331
332 case ACPI_RSC_SOURCEX:
333 /*
334 * Optional resource_source (Index and String). This is the more
335 * complicated case used by the Interrupt() macro
336 */
337 target = ACPI_ADD_PTR(char, resource,
338 info->aml_offset +
339 (item_count * 4));
340
341 resource->length +=
342 acpi_rs_get_resource_source(aml_resource_length,
343 (acpi_rs_length)
344 (((item_count -
345 1) * sizeof(u32)) +
346 info->value),
347 destination, aml,
348 target);
349 break;
350
351 case ACPI_RSC_BITMASK:
352 /*
353 * 8-bit encoded bitmask (DMA macro)
354 */
355 item_count =
356 acpi_rs_decode_bitmask(ACPI_GET8(source),
357 destination);
358 if (item_count) {
359 resource->length += (item_count - 1);
360 }
361
362 target = ACPI_ADD_PTR(char, resource, info->value);
363 ACPI_SET8(target, item_count);
364 break;
365
366 case ACPI_RSC_BITMASK16:
367 /*
368 * 16-bit encoded bitmask (IRQ macro)
369 */
370 ACPI_MOVE_16_TO_16(&temp16, source);
371
372 item_count =
373 acpi_rs_decode_bitmask(temp16, destination);
374 if (item_count) {
375 resource->length += (item_count - 1);
376 }
377
378 target = ACPI_ADD_PTR(char, resource, info->value);
379 ACPI_SET8(target, item_count);
380 break;
381
382 case ACPI_RSC_EXIT_NE:
383 /*
384 * control - Exit conversion if not equal
385 */
386 switch (info->resource_offset) {
387 case ACPI_RSC_COMPARE_AML_LENGTH:
388
389 if (aml_resource_length != info->value) {
390 goto exit;
391 }
392 break;
393
394 case ACPI_RSC_COMPARE_VALUE:
395
396 if (ACPI_GET8(source) != info->value) {
397 goto exit;
398 }
399 break;
400
401 default:
402
403 ACPI_ERROR((AE_INFO,
404 "Invalid conversion sub-opcode"));
405 return_ACPI_STATUS(AE_BAD_PARAMETER);
406 }
407 break;
408
409 default:
410
411 ACPI_ERROR((AE_INFO, "Invalid conversion opcode"));
412 return_ACPI_STATUS(AE_BAD_PARAMETER);
413 }
414
415 count--;
416 info++;
417 }
418
419exit:
420 if (!flags_mode) {
421
422 /* Round the resource struct length up to the next boundary (32 or 64) */
423
424 resource->length = (u32)
425 ACPI_ROUND_UP_TO_NATIVE_WORD(resource->length);
426 }
427 return_ACPI_STATUS(AE_OK);
428}
429
430/*******************************************************************************
431 *
432 * FUNCTION: acpi_rs_convert_resource_to_aml
433 *
434 * PARAMETERS: resource - Pointer to the resource descriptor
435 * aml - Where the AML descriptor is returned
436 * info - Pointer to appropriate conversion table
437 *
438 * RETURN: Status
439 *
440 * DESCRIPTION: Convert an internal resource descriptor to the corresponding
441 * external AML resource descriptor.
442 *
443 ******************************************************************************/
444
445acpi_status
446acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
447 union aml_resource *aml,
448 struct acpi_rsconvert_info *info)
449{
450 void *source = NULL;
451 void *destination;
452 char *target;
453 acpi_rsdesc_size aml_length = 0;
454 u8 count;
455 u16 temp16 = 0;
456 u16 item_count = 0;
457
458 ACPI_FUNCTION_TRACE(rs_convert_resource_to_aml);
459
460 if (!info) {
461 return_ACPI_STATUS(AE_BAD_PARAMETER);
462 }
463
464 /*
465 * First table entry must be ACPI_RSC_INITxxx and must contain the
466 * table length (# of table entries)
467 */
468 count = INIT_TABLE_LENGTH(info);
469
470 while (count) {
471 /*
472 * Source is the internal resource descriptor,
473 * destination is the external AML byte stream buffer
474 */
475 source = ACPI_ADD_PTR(void, resource, info->resource_offset);
476 destination = ACPI_ADD_PTR(void, aml, info->aml_offset);
477
478 switch (info->opcode) {
479 case ACPI_RSC_INITSET:
480
481 memset(aml, 0, INIT_RESOURCE_LENGTH(info));
482 aml_length = INIT_RESOURCE_LENGTH(info);
483 acpi_rs_set_resource_header(INIT_RESOURCE_TYPE(info),
484 aml_length, aml);
485 break;
486
487 case ACPI_RSC_INITGET:
488 break;
489
490 case ACPI_RSC_FLAGINIT:
491 /*
492 * Clear the flag byte
493 */
494 ACPI_SET8(destination, 0);
495 break;
496
497 case ACPI_RSC_1BITFLAG:
498 /*
499 * Mask and shift the flag bit
500 */
501 ACPI_SET_BIT(*ACPI_CAST8(destination), (u8)
502 ((ACPI_GET8(source) & 0x01) << info->
503 value));
504 break;
505
506 case ACPI_RSC_2BITFLAG:
507 /*
508 * Mask and shift the flag bits
509 */
510 ACPI_SET_BIT(*ACPI_CAST8(destination), (u8)
511 ((ACPI_GET8(source) & 0x03) << info->
512 value));
513 break;
514
515 case ACPI_RSC_3BITFLAG:
516 /*
517 * Mask and shift the flag bits
518 */
519 ACPI_SET_BIT(*ACPI_CAST8(destination), (u8)
520 ((ACPI_GET8(source) & 0x07) << info->
521 value));
522 break;
523
524 case ACPI_RSC_6BITFLAG:
525 /*
526 * Mask and shift the flag bits
527 */
528 ACPI_SET_BIT(*ACPI_CAST8(destination), (u8)
529 ((ACPI_GET8(source) & 0x3F) << info->
530 value));
531 break;
532
533 case ACPI_RSC_COUNT:
534
535 item_count = ACPI_GET8(source);
536 ACPI_SET8(destination, item_count);
537
538 aml_length = (u16)
539 (aml_length + (info->value * (item_count - 1)));
540 break;
541
542 case ACPI_RSC_COUNT16:
543
544 item_count = ACPI_GET16(source);
545 aml_length = (u16) (aml_length + item_count);
546 acpi_rs_set_resource_length(aml_length, aml);
547 break;
548
549 case ACPI_RSC_COUNT_GPIO_PIN:
550
551 item_count = ACPI_GET16(source);
552 ACPI_SET16(destination, aml_length);
553
554 aml_length = (u16)(aml_length + item_count * 2);
555 target = ACPI_ADD_PTR(void, aml, info->value);
556 ACPI_SET16(target, aml_length);
557 acpi_rs_set_resource_length(aml_length, aml);
558 break;
559
560 case ACPI_RSC_COUNT_GPIO_VEN:
561
562 item_count = ACPI_GET16(source);
563 ACPI_SET16(destination, item_count);
564
565 aml_length =
566 (u16)(aml_length + (info->value * item_count));
567 acpi_rs_set_resource_length(aml_length, aml);
568 break;
569
570 case ACPI_RSC_COUNT_GPIO_RES:
571
572 /* Set resource source string length */
573
574 item_count = ACPI_GET16(source);
575 ACPI_SET16(destination, aml_length);
576
577 /* Compute offset for the Vendor Data */
578
579 aml_length = (u16)(aml_length + item_count);
580 target = ACPI_ADD_PTR(void, aml, info->value);
581
582 /* Set vendor offset only if there is vendor data */
583
584 ACPI_SET16(target, aml_length);
585
586 acpi_rs_set_resource_length(aml_length, aml);
587 break;
588
589 case ACPI_RSC_COUNT_SERIAL_VEN:
590
591 item_count = ACPI_GET16(source);
592 ACPI_SET16(destination, item_count + info->value);
593 aml_length = (u16)(aml_length + item_count);
594 acpi_rs_set_resource_length(aml_length, aml);
595 break;
596
597 case ACPI_RSC_COUNT_SERIAL_RES:
598
599 item_count = ACPI_GET16(source);
600 aml_length = (u16)(aml_length + item_count);
601 acpi_rs_set_resource_length(aml_length, aml);
602 break;
603
604 case ACPI_RSC_LENGTH:
605
606 acpi_rs_set_resource_length(info->value, aml);
607 break;
608
609 case ACPI_RSC_MOVE8:
610 case ACPI_RSC_MOVE16:
611 case ACPI_RSC_MOVE32:
612 case ACPI_RSC_MOVE64:
613
614 if (info->value) {
615 item_count = info->value;
616 }
617 acpi_rs_move_data(destination, source, item_count,
618 info->opcode);
619 break;
620
621 case ACPI_RSC_MOVE_GPIO_PIN:
622
623 destination = (char *)ACPI_ADD_PTR(void, aml,
624 ACPI_GET16
625 (destination));
626 source = *(u16 **)source;
627 acpi_rs_move_data(destination, source, item_count,
628 info->opcode);
629 break;
630
631 case ACPI_RSC_MOVE_GPIO_RES:
632
633 /* Used for both resource_source string and vendor_data */
634
635 destination = (char *)ACPI_ADD_PTR(void, aml,
636 ACPI_GET16
637 (destination));
638 source = *(u8 **)source;
639 acpi_rs_move_data(destination, source, item_count,
640 info->opcode);
641 break;
642
643 case ACPI_RSC_MOVE_SERIAL_VEN:
644
645 destination = (char *)ACPI_ADD_PTR(void, aml,
646 (aml_length -
647 item_count));
648 source = *(u8 **)source;
649 acpi_rs_move_data(destination, source, item_count,
650 info->opcode);
651 break;
652
653 case ACPI_RSC_MOVE_SERIAL_RES:
654
655 destination = (char *)ACPI_ADD_PTR(void, aml,
656 (aml_length -
657 item_count));
658 source = *(u8 **)source;
659 acpi_rs_move_data(destination, source, item_count,
660 info->opcode);
661 break;
662
663 case ACPI_RSC_ADDRESS:
664
665 /* Set the Resource Type, General Flags, and Type-Specific Flags */
666
667 acpi_rs_set_address_common(aml, resource);
668 break;
669
670 case ACPI_RSC_SOURCEX:
671 /*
672 * Optional resource_source (Index and String)
673 */
674 aml_length =
675 acpi_rs_set_resource_source(aml,
676 (acpi_rs_length)
677 aml_length, source);
678 acpi_rs_set_resource_length(aml_length, aml);
679 break;
680
681 case ACPI_RSC_SOURCE:
682 /*
683 * Optional resource_source (Index and String). This is the more
684 * complicated case used by the Interrupt() macro
685 */
686 aml_length =
687 acpi_rs_set_resource_source(aml, info->value,
688 source);
689 acpi_rs_set_resource_length(aml_length, aml);
690 break;
691
692 case ACPI_RSC_BITMASK:
693 /*
694 * 8-bit encoded bitmask (DMA macro)
695 */
696 ACPI_SET8(destination,
697 acpi_rs_encode_bitmask(source,
698 *ACPI_ADD_PTR(u8,
699 resource,
700 info->
701 value)));
702 break;
703
704 case ACPI_RSC_BITMASK16:
705 /*
706 * 16-bit encoded bitmask (IRQ macro)
707 */
708 temp16 =
709 acpi_rs_encode_bitmask(source,
710 *ACPI_ADD_PTR(u8, resource,
711 info->value));
712 ACPI_MOVE_16_TO_16(destination, &temp16);
713 break;
714
715 case ACPI_RSC_EXIT_LE:
716 /*
717 * control - Exit conversion if less than or equal
718 */
719 if (item_count <= info->value) {
720 goto exit;
721 }
722 break;
723
724 case ACPI_RSC_EXIT_NE:
725 /*
726 * control - Exit conversion if not equal
727 */
728 switch (COMPARE_OPCODE(info)) {
729 case ACPI_RSC_COMPARE_VALUE:
730
731 if (*ACPI_ADD_PTR(u8, resource,
732 COMPARE_TARGET(info)) !=
733 COMPARE_VALUE(info)) {
734 goto exit;
735 }
736 break;
737
738 default:
739
740 ACPI_ERROR((AE_INFO,
741 "Invalid conversion sub-opcode"));
742 return_ACPI_STATUS(AE_BAD_PARAMETER);
743 }
744 break;
745
746 case ACPI_RSC_EXIT_EQ:
747 /*
748 * control - Exit conversion if equal
749 */
750 if (*ACPI_ADD_PTR(u8, resource,
751 COMPARE_TARGET(info)) ==
752 COMPARE_VALUE(info)) {
753 goto exit;
754 }
755 break;
756
757 default:
758
759 ACPI_ERROR((AE_INFO, "Invalid conversion opcode"));
760 return_ACPI_STATUS(AE_BAD_PARAMETER);
761 }
762
763 count--;
764 info++;
765 }
766
767exit:
768 return_ACPI_STATUS(AE_OK);
769}
770
771#if 0
772/* Previous resource validations */
773
774if (aml->ext_address64.revision_ID != AML_RESOURCE_EXTENDED_ADDRESS_REVISION) {
775 return_ACPI_STATUS(AE_SUPPORT);
776}
777
778if (resource->data.start_dpf.performance_robustness >= 3) {
779 return_ACPI_STATUS(AE_AML_BAD_RESOURCE_VALUE);
780}
781
782if (((aml->irq.flags & 0x09) == 0x00) || ((aml->irq.flags & 0x09) == 0x09)) {
783 /*
784 * Only [active_high, edge_sensitive] or [active_low, level_sensitive]
785 * polarity/trigger interrupts are allowed (ACPI spec, section
786 * "IRQ Format"), so 0x00 and 0x09 are illegal.
787 */
788 ACPI_ERROR((AE_INFO,
789 "Invalid interrupt polarity/trigger in resource list, 0x%X",
790 aml->irq.flags));
791 return_ACPI_STATUS(AE_BAD_DATA);
792}
793
794resource->data.extended_irq.interrupt_count = temp8;
795if (temp8 < 1) {
796
797 /* Must have at least one IRQ */
798
799 return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
800}
801
802if (resource->data.dma.transfer == 0x03) {
803 ACPI_ERROR((AE_INFO, "Invalid DMA.Transfer preference (3)"));
804 return_ACPI_STATUS(AE_BAD_DATA);
805}
806#endif
1/*******************************************************************************
2 *
3 * Module Name: rsmisc - Miscellaneous resource descriptors
4 *
5 ******************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2016, Intel Corp.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * substantially similar to the "NO WARRANTY" disclaimer below
19 * ("Disclaimer") and any redistribution must be conditioned upon
20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
29 *
30 * NO WARRANTY
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
42 */
43
44#include <acpi/acpi.h>
45#include "accommon.h"
46#include "acresrc.h"
47
48#define _COMPONENT ACPI_RESOURCES
49ACPI_MODULE_NAME("rsmisc")
50#define INIT_RESOURCE_TYPE(i) i->resource_offset
51#define INIT_RESOURCE_LENGTH(i) i->aml_offset
52#define INIT_TABLE_LENGTH(i) i->value
53#define COMPARE_OPCODE(i) i->resource_offset
54#define COMPARE_TARGET(i) i->aml_offset
55#define COMPARE_VALUE(i) i->value
56/*******************************************************************************
57 *
58 * FUNCTION: acpi_rs_convert_aml_to_resource
59 *
60 * PARAMETERS: resource - Pointer to the resource descriptor
61 * aml - Where the AML descriptor is returned
62 * info - Pointer to appropriate conversion table
63 *
64 * RETURN: Status
65 *
66 * DESCRIPTION: Convert an external AML resource descriptor to the corresponding
67 * internal resource descriptor
68 *
69 ******************************************************************************/
70acpi_status
71acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
72 union aml_resource *aml,
73 struct acpi_rsconvert_info *info)
74{
75 acpi_rs_length aml_resource_length;
76 void *source;
77 void *destination;
78 char *target;
79 u8 count;
80 u8 flags_mode = FALSE;
81 u16 item_count = 0;
82 u16 temp16 = 0;
83
84 ACPI_FUNCTION_TRACE(rs_convert_aml_to_resource);
85
86 if (!info) {
87 return_ACPI_STATUS(AE_BAD_PARAMETER);
88 }
89
90 if (((acpi_size)resource) & 0x3) {
91
92 /* Each internal resource struct is expected to be 32-bit aligned */
93
94 ACPI_WARNING((AE_INFO,
95 "Misaligned resource pointer (get): %p Type 0x%2.2X Length %u",
96 resource, resource->type, resource->length));
97 }
98
99 /* Extract the resource Length field (does not include header length) */
100
101 aml_resource_length = acpi_ut_get_resource_length(aml);
102
103 /*
104 * First table entry must be ACPI_RSC_INITxxx and must contain the
105 * table length (# of table entries)
106 */
107 count = INIT_TABLE_LENGTH(info);
108 while (count) {
109 /*
110 * Source is the external AML byte stream buffer,
111 * destination is the internal resource descriptor
112 */
113 source = ACPI_ADD_PTR(void, aml, info->aml_offset);
114 destination =
115 ACPI_ADD_PTR(void, resource, info->resource_offset);
116
117 switch (info->opcode) {
118 case ACPI_RSC_INITGET:
119 /*
120 * Get the resource type and the initial (minimum) length
121 */
122 memset(resource, 0, INIT_RESOURCE_LENGTH(info));
123 resource->type = INIT_RESOURCE_TYPE(info);
124 resource->length = INIT_RESOURCE_LENGTH(info);
125 break;
126
127 case ACPI_RSC_INITSET:
128 break;
129
130 case ACPI_RSC_FLAGINIT:
131
132 flags_mode = TRUE;
133 break;
134
135 case ACPI_RSC_1BITFLAG:
136 /*
137 * Mask and shift the flag bit
138 */
139 ACPI_SET8(destination,
140 ((ACPI_GET8(source) >> info->value) & 0x01));
141 break;
142
143 case ACPI_RSC_2BITFLAG:
144 /*
145 * Mask and shift the flag bits
146 */
147 ACPI_SET8(destination,
148 ((ACPI_GET8(source) >> info->value) & 0x03));
149 break;
150
151 case ACPI_RSC_3BITFLAG:
152 /*
153 * Mask and shift the flag bits
154 */
155 ACPI_SET8(destination,
156 ((ACPI_GET8(source) >> info->value) & 0x07));
157 break;
158
159 case ACPI_RSC_COUNT:
160
161 item_count = ACPI_GET8(source);
162 ACPI_SET8(destination, item_count);
163
164 resource->length = resource->length +
165 (info->value * (item_count - 1));
166 break;
167
168 case ACPI_RSC_COUNT16:
169
170 item_count = aml_resource_length;
171 ACPI_SET16(destination, item_count);
172
173 resource->length = resource->length +
174 (info->value * (item_count - 1));
175 break;
176
177 case ACPI_RSC_COUNT_GPIO_PIN:
178
179 target = ACPI_ADD_PTR(void, aml, info->value);
180 item_count = ACPI_GET16(target) - ACPI_GET16(source);
181
182 resource->length = resource->length + item_count;
183 item_count = item_count / 2;
184 ACPI_SET16(destination, item_count);
185 break;
186
187 case ACPI_RSC_COUNT_GPIO_VEN:
188
189 item_count = ACPI_GET8(source);
190 ACPI_SET8(destination, item_count);
191
192 resource->length =
193 resource->length + (info->value * item_count);
194 break;
195
196 case ACPI_RSC_COUNT_GPIO_RES:
197 /*
198 * Vendor data is optional (length/offset may both be zero)
199 * Examine vendor data length field first
200 */
201 target = ACPI_ADD_PTR(void, aml, (info->value + 2));
202 if (ACPI_GET16(target)) {
203
204 /* Use vendor offset to get resource source length */
205
206 target = ACPI_ADD_PTR(void, aml, info->value);
207 item_count =
208 ACPI_GET16(target) - ACPI_GET16(source);
209 } else {
210 /* No vendor data to worry about */
211
212 item_count = aml->large_header.resource_length +
213 sizeof(struct aml_resource_large_header) -
214 ACPI_GET16(source);
215 }
216
217 resource->length = resource->length + item_count;
218 ACPI_SET16(destination, item_count);
219 break;
220
221 case ACPI_RSC_COUNT_SERIAL_VEN:
222
223 item_count = ACPI_GET16(source) - info->value;
224
225 resource->length = resource->length + item_count;
226 ACPI_SET16(destination, item_count);
227 break;
228
229 case ACPI_RSC_COUNT_SERIAL_RES:
230
231 item_count = (aml_resource_length +
232 sizeof(struct aml_resource_large_header))
233 - ACPI_GET16(source) - info->value;
234
235 resource->length = resource->length + item_count;
236 ACPI_SET16(destination, item_count);
237 break;
238
239 case ACPI_RSC_LENGTH:
240
241 resource->length = resource->length + info->value;
242 break;
243
244 case ACPI_RSC_MOVE8:
245 case ACPI_RSC_MOVE16:
246 case ACPI_RSC_MOVE32:
247 case ACPI_RSC_MOVE64:
248 /*
249 * Raw data move. Use the Info value field unless item_count has
250 * been previously initialized via a COUNT opcode
251 */
252 if (info->value) {
253 item_count = info->value;
254 }
255 acpi_rs_move_data(destination, source, item_count,
256 info->opcode);
257 break;
258
259 case ACPI_RSC_MOVE_GPIO_PIN:
260
261 /* Generate and set the PIN data pointer */
262
263 target = (char *)ACPI_ADD_PTR(void, resource,
264 (resource->length -
265 item_count * 2));
266 *(u16 **)destination = ACPI_CAST_PTR(u16, target);
267
268 /* Copy the PIN data */
269
270 source = ACPI_ADD_PTR(void, aml, ACPI_GET16(source));
271 acpi_rs_move_data(target, source, item_count,
272 info->opcode);
273 break;
274
275 case ACPI_RSC_MOVE_GPIO_RES:
276
277 /* Generate and set the resource_source string pointer */
278
279 target = (char *)ACPI_ADD_PTR(void, resource,
280 (resource->length -
281 item_count));
282 *(u8 **)destination = ACPI_CAST_PTR(u8, target);
283
284 /* Copy the resource_source string */
285
286 source = ACPI_ADD_PTR(void, aml, ACPI_GET16(source));
287 acpi_rs_move_data(target, source, item_count,
288 info->opcode);
289 break;
290
291 case ACPI_RSC_MOVE_SERIAL_VEN:
292
293 /* Generate and set the Vendor Data pointer */
294
295 target = (char *)ACPI_ADD_PTR(void, resource,
296 (resource->length -
297 item_count));
298 *(u8 **)destination = ACPI_CAST_PTR(u8, target);
299
300 /* Copy the Vendor Data */
301
302 source = ACPI_ADD_PTR(void, aml, info->value);
303 acpi_rs_move_data(target, source, item_count,
304 info->opcode);
305 break;
306
307 case ACPI_RSC_MOVE_SERIAL_RES:
308
309 /* Generate and set the resource_source string pointer */
310
311 target = (char *)ACPI_ADD_PTR(void, resource,
312 (resource->length -
313 item_count));
314 *(u8 **)destination = ACPI_CAST_PTR(u8, target);
315
316 /* Copy the resource_source string */
317
318 source =
319 ACPI_ADD_PTR(void, aml,
320 (ACPI_GET16(source) + info->value));
321 acpi_rs_move_data(target, source, item_count,
322 info->opcode);
323 break;
324
325 case ACPI_RSC_SET8:
326
327 memset(destination, info->aml_offset, info->value);
328 break;
329
330 case ACPI_RSC_DATA8:
331
332 target = ACPI_ADD_PTR(char, resource, info->value);
333 memcpy(destination, source, ACPI_GET16(target));
334 break;
335
336 case ACPI_RSC_ADDRESS:
337 /*
338 * Common handler for address descriptor flags
339 */
340 if (!acpi_rs_get_address_common(resource, aml)) {
341 return_ACPI_STATUS
342 (AE_AML_INVALID_RESOURCE_TYPE);
343 }
344 break;
345
346 case ACPI_RSC_SOURCE:
347 /*
348 * Optional resource_source (Index and String)
349 */
350 resource->length +=
351 acpi_rs_get_resource_source(aml_resource_length,
352 info->value,
353 destination, aml, NULL);
354 break;
355
356 case ACPI_RSC_SOURCEX:
357 /*
358 * Optional resource_source (Index and String). This is the more
359 * complicated case used by the Interrupt() macro
360 */
361 target = ACPI_ADD_PTR(char, resource,
362 info->aml_offset +
363 (item_count * 4));
364
365 resource->length +=
366 acpi_rs_get_resource_source(aml_resource_length,
367 (acpi_rs_length)
368 (((item_count -
369 1) * sizeof(u32)) +
370 info->value),
371 destination, aml,
372 target);
373 break;
374
375 case ACPI_RSC_BITMASK:
376 /*
377 * 8-bit encoded bitmask (DMA macro)
378 */
379 item_count =
380 acpi_rs_decode_bitmask(ACPI_GET8(source),
381 destination);
382 if (item_count) {
383 resource->length += (item_count - 1);
384 }
385
386 target = ACPI_ADD_PTR(char, resource, info->value);
387 ACPI_SET8(target, item_count);
388 break;
389
390 case ACPI_RSC_BITMASK16:
391 /*
392 * 16-bit encoded bitmask (IRQ macro)
393 */
394 ACPI_MOVE_16_TO_16(&temp16, source);
395
396 item_count =
397 acpi_rs_decode_bitmask(temp16, destination);
398 if (item_count) {
399 resource->length += (item_count - 1);
400 }
401
402 target = ACPI_ADD_PTR(char, resource, info->value);
403 ACPI_SET8(target, item_count);
404 break;
405
406 case ACPI_RSC_EXIT_NE:
407 /*
408 * control - Exit conversion if not equal
409 */
410 switch (info->resource_offset) {
411 case ACPI_RSC_COMPARE_AML_LENGTH:
412
413 if (aml_resource_length != info->value) {
414 goto exit;
415 }
416 break;
417
418 case ACPI_RSC_COMPARE_VALUE:
419
420 if (ACPI_GET8(source) != info->value) {
421 goto exit;
422 }
423 break;
424
425 default:
426
427 ACPI_ERROR((AE_INFO,
428 "Invalid conversion sub-opcode"));
429 return_ACPI_STATUS(AE_BAD_PARAMETER);
430 }
431 break;
432
433 default:
434
435 ACPI_ERROR((AE_INFO, "Invalid conversion opcode"));
436 return_ACPI_STATUS(AE_BAD_PARAMETER);
437 }
438
439 count--;
440 info++;
441 }
442
443exit:
444 if (!flags_mode) {
445
446 /* Round the resource struct length up to the next boundary (32 or 64) */
447
448 resource->length = (u32)
449 ACPI_ROUND_UP_TO_NATIVE_WORD(resource->length);
450 }
451 return_ACPI_STATUS(AE_OK);
452}
453
454/*******************************************************************************
455 *
456 * FUNCTION: acpi_rs_convert_resource_to_aml
457 *
458 * PARAMETERS: resource - Pointer to the resource descriptor
459 * aml - Where the AML descriptor is returned
460 * info - Pointer to appropriate conversion table
461 *
462 * RETURN: Status
463 *
464 * DESCRIPTION: Convert an internal resource descriptor to the corresponding
465 * external AML resource descriptor.
466 *
467 ******************************************************************************/
468
469acpi_status
470acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
471 union aml_resource *aml,
472 struct acpi_rsconvert_info *info)
473{
474 void *source = NULL;
475 void *destination;
476 char *target;
477 acpi_rsdesc_size aml_length = 0;
478 u8 count;
479 u16 temp16 = 0;
480 u16 item_count = 0;
481
482 ACPI_FUNCTION_TRACE(rs_convert_resource_to_aml);
483
484 if (!info) {
485 return_ACPI_STATUS(AE_BAD_PARAMETER);
486 }
487
488 /*
489 * First table entry must be ACPI_RSC_INITxxx and must contain the
490 * table length (# of table entries)
491 */
492 count = INIT_TABLE_LENGTH(info);
493
494 while (count) {
495 /*
496 * Source is the internal resource descriptor,
497 * destination is the external AML byte stream buffer
498 */
499 source = ACPI_ADD_PTR(void, resource, info->resource_offset);
500 destination = ACPI_ADD_PTR(void, aml, info->aml_offset);
501
502 switch (info->opcode) {
503 case ACPI_RSC_INITSET:
504
505 memset(aml, 0, INIT_RESOURCE_LENGTH(info));
506 aml_length = INIT_RESOURCE_LENGTH(info);
507 acpi_rs_set_resource_header(INIT_RESOURCE_TYPE(info),
508 aml_length, aml);
509 break;
510
511 case ACPI_RSC_INITGET:
512 break;
513
514 case ACPI_RSC_FLAGINIT:
515 /*
516 * Clear the flag byte
517 */
518 ACPI_SET8(destination, 0);
519 break;
520
521 case ACPI_RSC_1BITFLAG:
522 /*
523 * Mask and shift the flag bit
524 */
525 ACPI_SET_BIT(*ACPI_CAST8(destination), (u8)
526 ((ACPI_GET8(source) & 0x01) << info->
527 value));
528 break;
529
530 case ACPI_RSC_2BITFLAG:
531 /*
532 * Mask and shift the flag bits
533 */
534 ACPI_SET_BIT(*ACPI_CAST8(destination), (u8)
535 ((ACPI_GET8(source) & 0x03) << info->
536 value));
537 break;
538
539 case ACPI_RSC_3BITFLAG:
540 /*
541 * Mask and shift the flag bits
542 */
543 ACPI_SET_BIT(*ACPI_CAST8(destination), (u8)
544 ((ACPI_GET8(source) & 0x07) << info->
545 value));
546 break;
547
548 case ACPI_RSC_COUNT:
549
550 item_count = ACPI_GET8(source);
551 ACPI_SET8(destination, item_count);
552
553 aml_length = (u16)
554 (aml_length + (info->value * (item_count - 1)));
555 break;
556
557 case ACPI_RSC_COUNT16:
558
559 item_count = ACPI_GET16(source);
560 aml_length = (u16) (aml_length + item_count);
561 acpi_rs_set_resource_length(aml_length, aml);
562 break;
563
564 case ACPI_RSC_COUNT_GPIO_PIN:
565
566 item_count = ACPI_GET16(source);
567 ACPI_SET16(destination, aml_length);
568
569 aml_length = (u16)(aml_length + item_count * 2);
570 target = ACPI_ADD_PTR(void, aml, info->value);
571 ACPI_SET16(target, aml_length);
572 acpi_rs_set_resource_length(aml_length, aml);
573 break;
574
575 case ACPI_RSC_COUNT_GPIO_VEN:
576
577 item_count = ACPI_GET16(source);
578 ACPI_SET16(destination, item_count);
579
580 aml_length =
581 (u16)(aml_length + (info->value * item_count));
582 acpi_rs_set_resource_length(aml_length, aml);
583 break;
584
585 case ACPI_RSC_COUNT_GPIO_RES:
586
587 /* Set resource source string length */
588
589 item_count = ACPI_GET16(source);
590 ACPI_SET16(destination, aml_length);
591
592 /* Compute offset for the Vendor Data */
593
594 aml_length = (u16)(aml_length + item_count);
595 target = ACPI_ADD_PTR(void, aml, info->value);
596
597 /* Set vendor offset only if there is vendor data */
598
599 if (resource->data.gpio.vendor_length) {
600 ACPI_SET16(target, aml_length);
601 }
602
603 acpi_rs_set_resource_length(aml_length, aml);
604 break;
605
606 case ACPI_RSC_COUNT_SERIAL_VEN:
607
608 item_count = ACPI_GET16(source);
609 ACPI_SET16(destination, item_count + info->value);
610 aml_length = (u16)(aml_length + item_count);
611 acpi_rs_set_resource_length(aml_length, aml);
612 break;
613
614 case ACPI_RSC_COUNT_SERIAL_RES:
615
616 item_count = ACPI_GET16(source);
617 aml_length = (u16)(aml_length + item_count);
618 acpi_rs_set_resource_length(aml_length, aml);
619 break;
620
621 case ACPI_RSC_LENGTH:
622
623 acpi_rs_set_resource_length(info->value, aml);
624 break;
625
626 case ACPI_RSC_MOVE8:
627 case ACPI_RSC_MOVE16:
628 case ACPI_RSC_MOVE32:
629 case ACPI_RSC_MOVE64:
630
631 if (info->value) {
632 item_count = info->value;
633 }
634 acpi_rs_move_data(destination, source, item_count,
635 info->opcode);
636 break;
637
638 case ACPI_RSC_MOVE_GPIO_PIN:
639
640 destination = (char *)ACPI_ADD_PTR(void, aml,
641 ACPI_GET16
642 (destination));
643 source = *(u16 **)source;
644 acpi_rs_move_data(destination, source, item_count,
645 info->opcode);
646 break;
647
648 case ACPI_RSC_MOVE_GPIO_RES:
649
650 /* Used for both resource_source string and vendor_data */
651
652 destination = (char *)ACPI_ADD_PTR(void, aml,
653 ACPI_GET16
654 (destination));
655 source = *(u8 **)source;
656 acpi_rs_move_data(destination, source, item_count,
657 info->opcode);
658 break;
659
660 case ACPI_RSC_MOVE_SERIAL_VEN:
661
662 destination = (char *)ACPI_ADD_PTR(void, aml,
663 (aml_length -
664 item_count));
665 source = *(u8 **)source;
666 acpi_rs_move_data(destination, source, item_count,
667 info->opcode);
668 break;
669
670 case ACPI_RSC_MOVE_SERIAL_RES:
671
672 destination = (char *)ACPI_ADD_PTR(void, aml,
673 (aml_length -
674 item_count));
675 source = *(u8 **)source;
676 acpi_rs_move_data(destination, source, item_count,
677 info->opcode);
678 break;
679
680 case ACPI_RSC_ADDRESS:
681
682 /* Set the Resource Type, General Flags, and Type-Specific Flags */
683
684 acpi_rs_set_address_common(aml, resource);
685 break;
686
687 case ACPI_RSC_SOURCEX:
688 /*
689 * Optional resource_source (Index and String)
690 */
691 aml_length =
692 acpi_rs_set_resource_source(aml,
693 (acpi_rs_length)
694 aml_length, source);
695 acpi_rs_set_resource_length(aml_length, aml);
696 break;
697
698 case ACPI_RSC_SOURCE:
699 /*
700 * Optional resource_source (Index and String). This is the more
701 * complicated case used by the Interrupt() macro
702 */
703 aml_length =
704 acpi_rs_set_resource_source(aml, info->value,
705 source);
706 acpi_rs_set_resource_length(aml_length, aml);
707 break;
708
709 case ACPI_RSC_BITMASK:
710 /*
711 * 8-bit encoded bitmask (DMA macro)
712 */
713 ACPI_SET8(destination,
714 acpi_rs_encode_bitmask(source,
715 *ACPI_ADD_PTR(u8,
716 resource,
717 info->
718 value)));
719 break;
720
721 case ACPI_RSC_BITMASK16:
722 /*
723 * 16-bit encoded bitmask (IRQ macro)
724 */
725 temp16 =
726 acpi_rs_encode_bitmask(source,
727 *ACPI_ADD_PTR(u8, resource,
728 info->value));
729 ACPI_MOVE_16_TO_16(destination, &temp16);
730 break;
731
732 case ACPI_RSC_EXIT_LE:
733 /*
734 * control - Exit conversion if less than or equal
735 */
736 if (item_count <= info->value) {
737 goto exit;
738 }
739 break;
740
741 case ACPI_RSC_EXIT_NE:
742 /*
743 * control - Exit conversion if not equal
744 */
745 switch (COMPARE_OPCODE(info)) {
746 case ACPI_RSC_COMPARE_VALUE:
747
748 if (*ACPI_ADD_PTR(u8, resource,
749 COMPARE_TARGET(info)) !=
750 COMPARE_VALUE(info)) {
751 goto exit;
752 }
753 break;
754
755 default:
756
757 ACPI_ERROR((AE_INFO,
758 "Invalid conversion sub-opcode"));
759 return_ACPI_STATUS(AE_BAD_PARAMETER);
760 }
761 break;
762
763 case ACPI_RSC_EXIT_EQ:
764 /*
765 * control - Exit conversion if equal
766 */
767 if (*ACPI_ADD_PTR(u8, resource,
768 COMPARE_TARGET(info)) ==
769 COMPARE_VALUE(info)) {
770 goto exit;
771 }
772 break;
773
774 default:
775
776 ACPI_ERROR((AE_INFO, "Invalid conversion opcode"));
777 return_ACPI_STATUS(AE_BAD_PARAMETER);
778 }
779
780 count--;
781 info++;
782 }
783
784exit:
785 return_ACPI_STATUS(AE_OK);
786}
787
788#if 0
789/* Previous resource validations */
790
791if (aml->ext_address64.revision_ID != AML_RESOURCE_EXTENDED_ADDRESS_REVISION) {
792 return_ACPI_STATUS(AE_SUPPORT);
793}
794
795if (resource->data.start_dpf.performance_robustness >= 3) {
796 return_ACPI_STATUS(AE_AML_BAD_RESOURCE_VALUE);
797}
798
799if (((aml->irq.flags & 0x09) == 0x00) || ((aml->irq.flags & 0x09) == 0x09)) {
800 /*
801 * Only [active_high, edge_sensitive] or [active_low, level_sensitive]
802 * polarity/trigger interrupts are allowed (ACPI spec, section
803 * "IRQ Format"), so 0x00 and 0x09 are illegal.
804 */
805 ACPI_ERROR((AE_INFO,
806 "Invalid interrupt polarity/trigger in resource list, 0x%X",
807 aml->irq.flags));
808 return_ACPI_STATUS(AE_BAD_DATA);
809}
810
811resource->data.extended_irq.interrupt_count = temp8;
812if (temp8 < 1) {
813
814 /* Must have at least one IRQ */
815
816 return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
817}
818
819if (resource->data.dma.transfer == 0x03) {
820 ACPI_ERROR((AE_INFO, "Invalid DMA.Transfer preference (3)"));
821 return_ACPI_STATUS(AE_BAD_DATA);
822}
823#endif