acpi_resource.c revision 1.1.2.2 1 /* $NetBSD: acpi_resource.c,v 1.1.2.2 2001/10/01 12:44:16 fvdl Exp $ */
2
3 /*
4 * Copyright 2001 Wasabi Systems, Inc.
5 * All rights reserved.
6 *
7 * Written by Jason R. Thorpe for Wasabi Systems, Inc.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed for the NetBSD Project by
20 * Wasabi Systems, Inc.
21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
22 * or promote products derived from this software without specific prior
23 * written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 */
37
38 /*-
39 * Copyright (c) 2000 Michael Smith
40 * Copyright (c) 2000 BSDi
41 * All rights reserved.
42 *
43 * Redistribution and use in source and binary forms, with or without
44 * modification, are permitted provided that the following conditions
45 * are met:
46 * 1. Redistributions of source code must retain the above copyright
47 * notice, this list of conditions and the following disclaimer.
48 * 2. Redistributions in binary form must reproduce the above copyright
49 * notice, this list of conditions and the following disclaimer in the
50 * documentation and/or other materials provided with the distribution.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
55 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
62 * SUCH DAMAGE.
63 */
64
65 /*
66 * ACPI resource parsing.
67 */
68
69 #include <sys/param.h>
70 #include <sys/systm.h>
71 #include <sys/device.h>
72 #include <sys/malloc.h>
73
74 #include <dev/acpi/acpica.h>
75 #include <dev/acpi/acpireg.h>
76 #include <dev/acpi/acpivar.h>
77
78 #define _COMPONENT ACPI_BUS
79 MODULE_NAME("RESOURCE")
80
81 /*
82 * acpi_resource_parse:
83 *
84 * Parse a device node's resources and fill them in for the
85 * client.
86 *
87 * Note that it might be nice to also locate ACPI-specific resource
88 * items, such as GPE bits.
89 */
90 ACPI_STATUS
91 acpi_resource_parse(struct device *dev, struct acpi_devnode *ad,
92 void *arg, const struct acpi_resource_parse_ops *ops)
93 {
94 ACPI_BUFFER buf;
95 ACPI_RESOURCE *res;
96 char *cur, *last;
97 ACPI_STATUS status;
98 void *context;
99 int i;
100
101 FUNCTION_TRACE(__FUNCTION__);
102
103 /*
104 * XXX Note, this means we only get devices that are currently
105 * decoding their address space. This might not be what we
106 * want, in the long term.
107 */
108
109 status = acpi_get(ad->ad_handle, &buf, AcpiGetCurrentResources);
110 if (status != AE_OK) {
111 printf("%s: ACPI: unable to get Current Resources: %d\n",
112 dev->dv_xname, status);
113 return_ACPI_STATUS(status);
114 }
115
116 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "got %d bytes of _CRS\n",
117 buf.Length));
118
119 (*ops->init)(dev, arg, &context);
120
121 cur = buf.Pointer;
122 last = cur + buf.Length;
123 while (cur < last) {
124 res = (ACPI_RESOURCE *) cur;
125 cur += res->Length;
126
127 switch (res->Id) {
128 case ACPI_RSTYPE_END_TAG:
129 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "EndTag\n"));
130 cur = last;
131 break;
132
133 case ACPI_RSTYPE_FIXED_IO:
134 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
135 "FixedIo 0x%x/%d\n",
136 res->Data.FixedIo.BaseAddress,
137 res->Data.FixedIo.RangeLength));
138 (*ops->ioport)(dev, context,
139 res->Data.FixedIo.BaseAddress,
140 res->Data.FixedIo.RangeLength);
141 break;
142
143 case ACPI_RSTYPE_IO:
144 if (res->Data.Io.MinBaseAddress ==
145 res->Data.Io.MaxBaseAddress) {
146 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
147 "Io 0x%x/%d\n",
148 res->Data.Io.MinBaseAddress,
149 res->Data.Io.RangeLength));
150 (*ops->ioport)(dev, context,
151 res->Data.Io.MinBaseAddress,
152 res->Data.Io.RangeLength);
153 } else {
154 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
155 "Io 0x%x-0x%x/%d\n",
156 res->Data.Io.MinBaseAddress,
157 res->Data.Io.MaxBaseAddress,
158 res->Data.Io.RangeLength));
159 (*ops->iorange)(dev, context,
160 res->Data.Io.MinBaseAddress,
161 res->Data.Io.MaxBaseAddress,
162 res->Data.Io.RangeLength,
163 res->Data.Io.Alignment);
164 }
165 break;
166
167 case ACPI_RSTYPE_FIXED_MEM32:
168 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
169 "FixedMemory32 0x%x/%d\n",
170 res->Data.FixedMemory32.RangeBaseAddress,
171 res->Data.FixedMemory32.RangeLength));
172 (*ops->memory)(dev, context,
173 res->Data.FixedMemory32.RangeBaseAddress,
174 res->Data.FixedMemory32.RangeLength);
175 break;
176
177 case ACPI_RSTYPE_MEM32:
178 if (res->Data.Memory32.MinBaseAddress ==
179 res->Data.Memory32.MaxBaseAddress) {
180 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
181 "Memory32 0x%x/%d\n",
182 res->Data.Memory32.MinBaseAddress,
183 res->Data.Memory32.RangeLength));
184 (*ops->memory)(dev, context,
185 res->Data.Memory32.MinBaseAddress,
186 res->Data.Memory32.RangeLength);
187 } else {
188 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
189 "Memory32 0x%x-0x%x/%d\n",
190 res->Data.Memory32.MinBaseAddress,
191 res->Data.Memory32.MaxBaseAddress,
192 res->Data.Memory32.RangeLength));
193 (*ops->memrange)(dev, context,
194 res->Data.Memory32.MinBaseAddress,
195 res->Data.Memory32.MaxBaseAddress,
196 res->Data.Memory32.RangeLength,
197 res->Data.Memory32.Alignment);
198 }
199 break;
200
201 case ACPI_RSTYPE_MEM24:
202 if (res->Data.Memory24.MinBaseAddress ==
203 res->Data.Memory24.MaxBaseAddress) {
204 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
205 "Memory24 0x%x/%d\n",
206 res->Data.Memory24.MinBaseAddress,
207 res->Data.Memory24.RangeLength));
208 (*ops->memory)(dev, context,
209 res->Data.Memory24.MinBaseAddress,
210 res->Data.Memory24.RangeLength);
211 } else {
212 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
213 "Memory24 0x%x-0x%x/%d\n",
214 res->Data.Memory24.MinBaseAddress,
215 res->Data.Memory24.MaxBaseAddress,
216 res->Data.Memory24.RangeLength));
217 (*ops->memrange)(dev, context,
218 res->Data.Memory24.MinBaseAddress,
219 res->Data.Memory24.MaxBaseAddress,
220 res->Data.Memory24.RangeLength,
221 res->Data.Memory24.Alignment);
222 }
223 break;
224
225 case ACPI_RSTYPE_IRQ:
226 for (i = 0; i < res->Data.Irq.NumberOfInterrupts; i++) {
227 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
228 "IRQ %d\n", res->Data.Irq.Interrupts[i]));
229 (*ops->irq)(dev, context,
230 res->Data.Irq.Interrupts[i]);
231 }
232 break;
233
234 case ACPI_RSTYPE_DMA:
235 for (i = 0; i < res->Data.Dma.NumberOfChannels; i++) {
236 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
237 "DRQ %d\n", res->Data.Dma.Channels[i]));
238 (*ops->drq)(dev, context,
239 res->Data.Dma.Channels[i]);
240 }
241 break;
242
243 case ACPI_RSTYPE_START_DPF:
244 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
245 "Start dependant functions: %d\n",
246 res->Data.StartDpf.CompatibilityPriority));
247 (*ops->start_dep)(dev, context,
248 res->Data.StartDpf.CompatibilityPriority);
249 break;
250
251 case ACPI_RSTYPE_END_DPF:
252 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
253 "End dependant functions\n"));
254 (*ops->end_dep)(dev, context);
255
256 case ACPI_RSTYPE_ADDRESS32:
257 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
258 "Address32 unimplemented\n"));
259 break;
260
261 case ACPI_RSTYPE_ADDRESS16:
262 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
263 "Address16 unimplemented\n"));
264 break;
265
266 case ACPI_RSTYPE_EXT_IRQ:
267 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
268 "ExtendedIrq unimplemented\n"));
269 break;
270
271 case ACPI_RSTYPE_VENDOR:
272 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
273 "VendorSpecific unimplemented\n"));
274 break;
275
276 default:
277 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
278 "Unknown resource type: %d\n", res->Id));
279 break;
280 }
281 }
282
283 AcpiOsFree(buf.Pointer);
284 (*ops->fini)(dev, context);
285
286 return_ACPI_STATUS(AE_OK);
287 }
288
289 /*
290 * acpi_resource_print:
291 *
292 * Print the resources assigned to a device.
293 */
294 void
295 acpi_resource_print(struct device *dev, struct acpi_resources *res)
296 {
297 const char *sep;
298
299 if (SIMPLEQ_EMPTY(&res->ar_io) &&
300 SIMPLEQ_EMPTY(&res->ar_iorange) &&
301 SIMPLEQ_EMPTY(&res->ar_mem) &&
302 SIMPLEQ_EMPTY(&res->ar_memrange) &&
303 SIMPLEQ_EMPTY(&res->ar_irq) &&
304 SIMPLEQ_EMPTY(&res->ar_drq))
305 return;
306
307 printf("%s:", dev->dv_xname);
308
309 if (SIMPLEQ_EMPTY(&res->ar_io) == 0) {
310 struct acpi_io *ar;
311
312 sep = "";
313 printf(" io ");
314 for (ar = SIMPLEQ_FIRST(&res->ar_io); ar != NULL;
315 ar = SIMPLEQ_NEXT(ar, ar_list)) {
316 printf("%s0x%x", sep, ar->ar_base);
317 if (ar->ar_length > 1)
318 printf("-0x%x", ar->ar_base +
319 ar->ar_length - 1);
320 sep = ",";
321 }
322 }
323
324 /* XXX iorange */
325
326 if (SIMPLEQ_EMPTY(&res->ar_mem) == 0) {
327 struct acpi_mem *ar;
328
329 sep = "";
330 printf(" mem ");
331 for (ar = SIMPLEQ_FIRST(&res->ar_mem); ar != NULL;
332 ar = SIMPLEQ_NEXT(ar, ar_list)) {
333 printf("%s0x%x", sep, ar->ar_base);
334 if (ar->ar_length > 1)
335 printf("-0x%x", ar->ar_base +
336 ar->ar_length - 1);
337 sep = ",";
338 }
339 }
340
341 /* XXX memrange */
342
343 if (SIMPLEQ_EMPTY(&res->ar_irq) == 0) {
344 struct acpi_irq *ar;
345
346 sep = "";
347 printf(" irq ");
348 for (ar = SIMPLEQ_FIRST(&res->ar_irq); ar != NULL;
349 ar = SIMPLEQ_NEXT(ar, ar_list)) {
350 printf("%s%d", sep, ar->ar_irq);
351 sep = ",";
352 }
353 }
354
355 if (SIMPLEQ_EMPTY(&res->ar_drq) == 0) {
356 struct acpi_drq *ar;
357
358 sep = "";
359 printf(" drq ");
360 for (ar = SIMPLEQ_FIRST(&res->ar_drq); ar != NULL;
361 ar = SIMPLEQ_NEXT(ar, ar_list)) {
362 printf("%s%d", sep, ar->ar_drq);
363 sep = ",";
364 }
365 }
366
367 printf("\n");
368 }
369
370 struct acpi_io *
371 acpi_res_io(struct acpi_resources *res, int idx)
372 {
373 struct acpi_io *ar;
374
375 SIMPLEQ_FOREACH(ar, &res->ar_io, ar_list) {
376 if (ar->ar_index == idx)
377 return (ar);
378 }
379 return (NULL);
380 }
381
382 struct acpi_iorange *
383 acpi_res_iorange(struct acpi_resources *res, int idx)
384 {
385 struct acpi_iorange *ar;
386
387 SIMPLEQ_FOREACH(ar, &res->ar_iorange, ar_list) {
388 if (ar->ar_index == idx)
389 return (ar);
390 }
391 return (NULL);
392 }
393
394 struct acpi_mem *
395 acpi_res_mem(struct acpi_resources *res, int idx)
396 {
397 struct acpi_mem *ar;
398
399 SIMPLEQ_FOREACH(ar, &res->ar_mem, ar_list) {
400 if (ar->ar_index == idx)
401 return (ar);
402 }
403 return (NULL);
404 }
405
406 struct acpi_memrange *
407 acpi_res_memrange(struct acpi_resources *res, int idx)
408 {
409 struct acpi_memrange *ar;
410
411 SIMPLEQ_FOREACH(ar, &res->ar_memrange, ar_list) {
412 if (ar->ar_index == idx)
413 return (ar);
414 }
415 return (NULL);
416 }
417
418 struct acpi_irq *
419 acpi_res_irq(struct acpi_resources *res, int idx)
420 {
421 struct acpi_irq *ar;
422
423 SIMPLEQ_FOREACH(ar, &res->ar_irq, ar_list) {
424 if (ar->ar_index == idx)
425 return (ar);
426 }
427 return (NULL);
428 }
429
430 struct acpi_drq *
431 acpi_res_drq(struct acpi_resources *res, int idx)
432 {
433 struct acpi_drq *ar;
434
435 SIMPLEQ_FOREACH(ar, &res->ar_drq, ar_list) {
436 if (ar->ar_index == idx)
437 return (ar);
438 }
439 return (NULL);
440 }
441
442 /*****************************************************************************
443 * Default ACPI resource parse operations.
444 *****************************************************************************/
445
446 static void acpi_res_parse_init(struct device *, void *, void **);
447 static void acpi_res_parse_fini(struct device *, void *);
448
449 static void acpi_res_parse_ioport(struct device *, void *, uint32_t,
450 uint32_t);
451 static void acpi_res_parse_iorange(struct device *, void *, uint32_t,
452 uint32_t, uint32_t, uint32_t);
453
454 static void acpi_res_parse_memory(struct device *, void *, uint32_t,
455 uint32_t);
456 static void acpi_res_parse_memrange(struct device *, void *, uint32_t,
457 uint32_t, uint32_t, uint32_t);
458
459 static void acpi_res_parse_irq(struct device *, void *, uint32_t);
460 static void acpi_res_parse_drq(struct device *, void *, uint32_t);
461
462 static void acpi_res_parse_start_dep(struct device *, void *, int);
463 static void acpi_res_parse_end_dep(struct device *, void *);
464
465 const struct acpi_resource_parse_ops acpi_resource_parse_ops_default = {
466 acpi_res_parse_init,
467 acpi_res_parse_fini,
468
469 acpi_res_parse_ioport,
470 acpi_res_parse_iorange,
471
472 acpi_res_parse_memory,
473 acpi_res_parse_memrange,
474
475 acpi_res_parse_irq,
476 acpi_res_parse_drq,
477
478 acpi_res_parse_start_dep,
479 acpi_res_parse_end_dep,
480 };
481
482 static void
483 acpi_res_parse_init(struct device *dev, void *arg, void **contextp)
484 {
485 struct acpi_resources *res = arg;
486
487 SIMPLEQ_INIT(&res->ar_io);
488 res->ar_nio = 0;
489
490 SIMPLEQ_INIT(&res->ar_iorange);
491 res->ar_niorange = 0;
492
493 SIMPLEQ_INIT(&res->ar_mem);
494 res->ar_nmem = 0;
495
496 SIMPLEQ_INIT(&res->ar_memrange);
497 res->ar_nmemrange = 0;
498
499 SIMPLEQ_INIT(&res->ar_irq);
500 res->ar_nirq = 0;
501
502 SIMPLEQ_INIT(&res->ar_drq);
503 res->ar_ndrq = 0;
504
505 *contextp = res;
506 }
507
508 static void
509 acpi_res_parse_fini(struct device *dev, void *context)
510 {
511 struct acpi_resources *res = context;
512
513 /* Print the resources we're using. */
514 acpi_resource_print(dev, res);
515 }
516
517 static void
518 acpi_res_parse_ioport(struct device *dev, void *context, uint32_t base,
519 uint32_t length)
520 {
521 struct acpi_resources *res = context;
522 struct acpi_io *ar;
523
524 ar = AcpiOsAllocate(sizeof(*ar));
525 if (ar == NULL) {
526 printf("%s: ACPI: unable to allocate I/O resource %d\n",
527 dev->dv_xname, res->ar_nio);
528 res->ar_nio++;
529 return;
530 }
531
532 ar->ar_index = res->ar_nio++;
533 ar->ar_base = base;
534 ar->ar_length = length;
535
536 SIMPLEQ_INSERT_TAIL(&res->ar_io, ar, ar_list);
537 }
538
539 static void
540 acpi_res_parse_iorange(struct device *dev, void *context, uint32_t low,
541 uint32_t high, uint32_t length, uint32_t align)
542 {
543 struct acpi_resources *res = context;
544 struct acpi_iorange *ar;
545
546 ar = AcpiOsAllocate(sizeof(*ar));
547 if (ar == NULL) {
548 printf("%s: ACPI: unable to allocate I/O range resource %d\n",
549 dev->dv_xname, res->ar_niorange);
550 res->ar_niorange++;
551 return;
552 }
553
554 ar->ar_index = res->ar_niorange++;
555 ar->ar_low = low;
556 ar->ar_high = high;
557 ar->ar_length = length;
558 ar->ar_align = align;
559
560 SIMPLEQ_INSERT_TAIL(&res->ar_iorange, ar, ar_list);
561 }
562
563 static void
564 acpi_res_parse_memory(struct device *dev, void *context, uint32_t base,
565 uint32_t length)
566 {
567 struct acpi_resources *res = context;
568 struct acpi_mem *ar;
569
570 ar = AcpiOsAllocate(sizeof(*ar));
571 if (ar == NULL) {
572 printf("%s: ACPI: unable to allocate Memory resource %d\n",
573 dev->dv_xname, res->ar_nmem);
574 res->ar_nmem++;
575 return;
576 }
577
578 ar->ar_index = res->ar_nmem++;
579 ar->ar_base = base;
580 ar->ar_length = length;
581
582 SIMPLEQ_INSERT_TAIL(&res->ar_mem, ar, ar_list);
583 }
584
585 static void
586 acpi_res_parse_memrange(struct device *dev, void *context, uint32_t low,
587 uint32_t high, uint32_t length, uint32_t align)
588 {
589 struct acpi_resources *res = context;
590 struct acpi_memrange *ar;
591
592 ar = AcpiOsAllocate(sizeof(*ar));
593 if (ar == NULL) {
594 printf("%s: ACPI: unable to allocate Memory range resource "
595 "%d\n", dev->dv_xname, res->ar_nmemrange);
596 res->ar_nmemrange++;
597 return;
598 }
599
600 ar->ar_index = res->ar_nmemrange++;
601 ar->ar_low = low;
602 ar->ar_high = high;
603 ar->ar_length = length;
604 ar->ar_align = align;
605
606 SIMPLEQ_INSERT_TAIL(&res->ar_memrange, ar, ar_list);
607 }
608
609 static void
610 acpi_res_parse_irq(struct device *dev, void *context, uint32_t irq)
611 {
612 struct acpi_resources *res = context;
613 struct acpi_irq *ar;
614
615 ar = AcpiOsAllocate(sizeof(*ar));
616 if (ar == NULL) {
617 printf("%s: ACPI: unable to allocate IRQ resource %d\n",
618 dev->dv_xname, res->ar_nirq);
619 res->ar_nirq++;
620 return;
621 }
622
623 ar->ar_index = res->ar_nirq++;
624 ar->ar_irq = irq;
625
626 SIMPLEQ_INSERT_TAIL(&res->ar_irq, ar, ar_list);
627 }
628
629 static void
630 acpi_res_parse_drq(struct device *dev, void *context, uint32_t drq)
631 {
632 struct acpi_resources *res = context;
633 struct acpi_drq *ar;
634
635 ar = AcpiOsAllocate(sizeof(*ar));
636 if (ar == NULL) {
637 printf("%s: ACPI: unable to allocate DRQ resource %d\n",
638 dev->dv_xname, res->ar_ndrq);
639 res->ar_ndrq++;
640 return;
641 }
642
643 ar->ar_index = res->ar_ndrq++;
644 ar->ar_drq = drq;
645
646 SIMPLEQ_INSERT_TAIL(&res->ar_drq, ar, ar_list);
647 }
648
649 static void
650 acpi_res_parse_start_dep(struct device *dev, void *context, int preference)
651 {
652
653 printf("%s: ACPI: dependant functions not supported\n",
654 dev->dv_xname);
655 }
656
657 static void
658 acpi_res_parse_end_dep(struct device *dev, void *context)
659 {
660
661 /* Nothing to do. */
662 }
663