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acpi_resource.c revision 1.2
      1 /*	$NetBSD: acpi_resource.c,v 1.2 2001/11/13 13:01:57 lukem 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/cdefs.h>
     70 __KERNEL_RCSID(0, "$NetBSD: acpi_resource.c,v 1.2 2001/11/13 13:01:57 lukem Exp $");
     71 
     72 #include <sys/param.h>
     73 #include <sys/systm.h>
     74 #include <sys/device.h>
     75 #include <sys/malloc.h>
     76 
     77 #include <dev/acpi/acpica.h>
     78 #include <dev/acpi/acpireg.h>
     79 #include <dev/acpi/acpivar.h>
     80 
     81 #define	_COMPONENT	ACPI_BUS
     82 MODULE_NAME("RESOURCE")
     83 
     84 /*
     85  * acpi_resource_parse:
     86  *
     87  *	Parse a device node's resources and fill them in for the
     88  *	client.
     89  *
     90  *	Note that it might be nice to also locate ACPI-specific resource
     91  *	items, such as GPE bits.
     92  */
     93 ACPI_STATUS
     94 acpi_resource_parse(struct device *dev, struct acpi_devnode *ad,
     95     void *arg, const struct acpi_resource_parse_ops *ops)
     96 {
     97 	ACPI_BUFFER buf;
     98 	ACPI_RESOURCE *res;
     99 	char *cur, *last;
    100 	ACPI_STATUS status;
    101 	void *context;
    102 	int i;
    103 
    104 	FUNCTION_TRACE(__FUNCTION__);
    105 
    106 	/*
    107 	 * XXX Note, this means we only get devices that are currently
    108 	 * decoding their address space.  This might not be what we
    109 	 * want, in the long term.
    110 	 */
    111 
    112 	status = acpi_get(ad->ad_handle, &buf, AcpiGetCurrentResources);
    113 	if (status != AE_OK) {
    114 		printf("%s: ACPI: unable to get Current Resources: %d\n",
    115 		    dev->dv_xname, status);
    116 		return_ACPI_STATUS(status);
    117 	}
    118 
    119 	ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "got %d bytes of _CRS\n",
    120 	    buf.Length));
    121 
    122 	(*ops->init)(dev, arg, &context);
    123 
    124 	cur = buf.Pointer;
    125 	last = cur + buf.Length;
    126 	while (cur < last) {
    127 		res = (ACPI_RESOURCE *) cur;
    128 		cur += res->Length;
    129 
    130 		switch (res->Id) {
    131 		case ACPI_RSTYPE_END_TAG:
    132 			ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "EndTag\n"));
    133 			cur = last;
    134 			break;
    135 
    136 		case ACPI_RSTYPE_FIXED_IO:
    137 			ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
    138 			    "FixedIo 0x%x/%d\n",
    139 			    res->Data.FixedIo.BaseAddress,
    140 			    res->Data.FixedIo.RangeLength));
    141 			(*ops->ioport)(dev, context,
    142 			    res->Data.FixedIo.BaseAddress,
    143 			    res->Data.FixedIo.RangeLength);
    144 			break;
    145 
    146 		case ACPI_RSTYPE_IO:
    147 			if (res->Data.Io.MinBaseAddress ==
    148 			    res->Data.Io.MaxBaseAddress) {
    149 				ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
    150 				    "Io 0x%x/%d\n",
    151 				    res->Data.Io.MinBaseAddress,
    152 				    res->Data.Io.RangeLength));
    153 				(*ops->ioport)(dev, context,
    154 				    res->Data.Io.MinBaseAddress,
    155 				    res->Data.Io.RangeLength);
    156 			} else {
    157 				ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
    158 				    "Io 0x%x-0x%x/%d\n",
    159 				    res->Data.Io.MinBaseAddress,
    160 				    res->Data.Io.MaxBaseAddress,
    161 				    res->Data.Io.RangeLength));
    162 				(*ops->iorange)(dev, context,
    163 				    res->Data.Io.MinBaseAddress,
    164 				    res->Data.Io.MaxBaseAddress,
    165 				    res->Data.Io.RangeLength,
    166 				    res->Data.Io.Alignment);
    167 			}
    168 			break;
    169 
    170 		case ACPI_RSTYPE_FIXED_MEM32:
    171 			ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
    172 			    "FixedMemory32 0x%x/%d\n",
    173 			    res->Data.FixedMemory32.RangeBaseAddress,
    174 			    res->Data.FixedMemory32.RangeLength));
    175 			(*ops->memory)(dev, context,
    176 			    res->Data.FixedMemory32.RangeBaseAddress,
    177 			    res->Data.FixedMemory32.RangeLength);
    178 			break;
    179 
    180 		case ACPI_RSTYPE_MEM32:
    181 			if (res->Data.Memory32.MinBaseAddress ==
    182 			    res->Data.Memory32.MaxBaseAddress) {
    183 				ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
    184 				    "Memory32 0x%x/%d\n",
    185 				    res->Data.Memory32.MinBaseAddress,
    186 				    res->Data.Memory32.RangeLength));
    187 				(*ops->memory)(dev, context,
    188 				    res->Data.Memory32.MinBaseAddress,
    189 				    res->Data.Memory32.RangeLength);
    190 			} else {
    191 				ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
    192 				    "Memory32 0x%x-0x%x/%d\n",
    193 				    res->Data.Memory32.MinBaseAddress,
    194 				    res->Data.Memory32.MaxBaseAddress,
    195 				    res->Data.Memory32.RangeLength));
    196 				(*ops->memrange)(dev, context,
    197 				    res->Data.Memory32.MinBaseAddress,
    198 				    res->Data.Memory32.MaxBaseAddress,
    199 				    res->Data.Memory32.RangeLength,
    200 				    res->Data.Memory32.Alignment);
    201 			}
    202 			break;
    203 
    204 		case ACPI_RSTYPE_MEM24:
    205 			if (res->Data.Memory24.MinBaseAddress ==
    206 			    res->Data.Memory24.MaxBaseAddress) {
    207 				ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
    208 				    "Memory24 0x%x/%d\n",
    209 				    res->Data.Memory24.MinBaseAddress,
    210 				    res->Data.Memory24.RangeLength));
    211 				(*ops->memory)(dev, context,
    212 				    res->Data.Memory24.MinBaseAddress,
    213 				    res->Data.Memory24.RangeLength);
    214 			} else {
    215 				ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
    216 				    "Memory24 0x%x-0x%x/%d\n",
    217 				    res->Data.Memory24.MinBaseAddress,
    218 				    res->Data.Memory24.MaxBaseAddress,
    219 				    res->Data.Memory24.RangeLength));
    220 				(*ops->memrange)(dev, context,
    221 				    res->Data.Memory24.MinBaseAddress,
    222 				    res->Data.Memory24.MaxBaseAddress,
    223 				    res->Data.Memory24.RangeLength,
    224 				    res->Data.Memory24.Alignment);
    225 			}
    226 			break;
    227 
    228 		case ACPI_RSTYPE_IRQ:
    229 			for (i = 0; i < res->Data.Irq.NumberOfInterrupts; i++) {
    230 				ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
    231 				    "IRQ %d\n", res->Data.Irq.Interrupts[i]));
    232 				(*ops->irq)(dev, context,
    233 				    res->Data.Irq.Interrupts[i]);
    234 			}
    235 			break;
    236 
    237 		case ACPI_RSTYPE_DMA:
    238 			for (i = 0; i < res->Data.Dma.NumberOfChannels; i++) {
    239 				ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
    240 				    "DRQ %d\n", res->Data.Dma.Channels[i]));
    241 				(*ops->drq)(dev, context,
    242 				    res->Data.Dma.Channels[i]);
    243 			}
    244 			break;
    245 
    246 		case ACPI_RSTYPE_START_DPF:
    247 			ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
    248 			    "Start dependant functions: %d\n",
    249 			     res->Data.StartDpf.CompatibilityPriority));
    250 			(*ops->start_dep)(dev, context,
    251 			    res->Data.StartDpf.CompatibilityPriority);
    252 			break;
    253 
    254 		case ACPI_RSTYPE_END_DPF:
    255 			ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
    256 			    "End dependant functions\n"));
    257 			(*ops->end_dep)(dev, context);
    258 
    259 		case ACPI_RSTYPE_ADDRESS32:
    260 			ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
    261 			    "Address32 unimplemented\n"));
    262 			break;
    263 
    264 		case ACPI_RSTYPE_ADDRESS16:
    265 			ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
    266 			    "Address16 unimplemented\n"));
    267 			break;
    268 
    269 		case ACPI_RSTYPE_EXT_IRQ:
    270 			ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
    271 			    "ExtendedIrq unimplemented\n"));
    272 			break;
    273 
    274 		case ACPI_RSTYPE_VENDOR:
    275 			ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
    276 			    "VendorSpecific unimplemented\n"));
    277 			break;
    278 
    279 		default:
    280 			ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
    281 			    "Unknown resource type: %d\n", res->Id));
    282 			break;
    283 		}
    284 	}
    285 
    286 	AcpiOsFree(buf.Pointer);
    287 	(*ops->fini)(dev, context);
    288 
    289 	return_ACPI_STATUS(AE_OK);
    290 }
    291 
    292 /*
    293  * acpi_resource_print:
    294  *
    295  *	Print the resources assigned to a device.
    296  */
    297 void
    298 acpi_resource_print(struct device *dev, struct acpi_resources *res)
    299 {
    300 	const char *sep;
    301 
    302 	if (SIMPLEQ_EMPTY(&res->ar_io) &&
    303 	    SIMPLEQ_EMPTY(&res->ar_iorange) &&
    304 	    SIMPLEQ_EMPTY(&res->ar_mem) &&
    305 	    SIMPLEQ_EMPTY(&res->ar_memrange) &&
    306 	    SIMPLEQ_EMPTY(&res->ar_irq) &&
    307 	    SIMPLEQ_EMPTY(&res->ar_drq))
    308 		return;
    309 
    310 	printf("%s:", dev->dv_xname);
    311 
    312 	if (SIMPLEQ_EMPTY(&res->ar_io) == 0) {
    313 		struct acpi_io *ar;
    314 
    315 		sep = "";
    316 		printf(" io ");
    317 		for (ar = SIMPLEQ_FIRST(&res->ar_io); ar != NULL;
    318 		     ar = SIMPLEQ_NEXT(ar, ar_list)) {
    319 			printf("%s0x%x", sep, ar->ar_base);
    320 			if (ar->ar_length > 1)
    321 				printf("-0x%x", ar->ar_base +
    322 				    ar->ar_length - 1);
    323 			sep = ",";
    324 		}
    325 	}
    326 
    327 	/* XXX iorange */
    328 
    329 	if (SIMPLEQ_EMPTY(&res->ar_mem) == 0) {
    330 		struct acpi_mem *ar;
    331 
    332 		sep = "";
    333 		printf(" mem ");
    334 		for (ar = SIMPLEQ_FIRST(&res->ar_mem); ar != NULL;
    335 		     ar = SIMPLEQ_NEXT(ar, ar_list)) {
    336 			printf("%s0x%x", sep, ar->ar_base);
    337 			if (ar->ar_length > 1)
    338 				printf("-0x%x", ar->ar_base +
    339 				    ar->ar_length - 1);
    340 			sep = ",";
    341 		}
    342 	}
    343 
    344 	/* XXX memrange */
    345 
    346 	if (SIMPLEQ_EMPTY(&res->ar_irq) == 0) {
    347 		struct acpi_irq *ar;
    348 
    349 		sep = "";
    350 		printf(" irq ");
    351 		for (ar = SIMPLEQ_FIRST(&res->ar_irq); ar != NULL;
    352 		     ar = SIMPLEQ_NEXT(ar, ar_list)) {
    353 			printf("%s%d", sep, ar->ar_irq);
    354 			sep = ",";
    355 		}
    356 	}
    357 
    358 	if (SIMPLEQ_EMPTY(&res->ar_drq) == 0) {
    359 		struct acpi_drq *ar;
    360 
    361 		sep = "";
    362 		printf(" drq ");
    363 		for (ar = SIMPLEQ_FIRST(&res->ar_drq); ar != NULL;
    364 		     ar = SIMPLEQ_NEXT(ar, ar_list)) {
    365 			printf("%s%d", sep, ar->ar_drq);
    366 			sep = ",";
    367 		}
    368 	}
    369 
    370 	printf("\n");
    371 }
    372 
    373 struct acpi_io *
    374 acpi_res_io(struct acpi_resources *res, int idx)
    375 {
    376 	struct acpi_io *ar;
    377 
    378 	SIMPLEQ_FOREACH(ar, &res->ar_io, ar_list) {
    379 		if (ar->ar_index == idx)
    380 			return (ar);
    381 	}
    382 	return (NULL);
    383 }
    384 
    385 struct acpi_iorange *
    386 acpi_res_iorange(struct acpi_resources *res, int idx)
    387 {
    388 	struct acpi_iorange *ar;
    389 
    390 	SIMPLEQ_FOREACH(ar, &res->ar_iorange, ar_list) {
    391 		if (ar->ar_index == idx)
    392 			return (ar);
    393 	}
    394 	return (NULL);
    395 }
    396 
    397 struct acpi_mem *
    398 acpi_res_mem(struct acpi_resources *res, int idx)
    399 {
    400 	struct acpi_mem *ar;
    401 
    402 	SIMPLEQ_FOREACH(ar, &res->ar_mem, ar_list) {
    403 		if (ar->ar_index == idx)
    404 			return (ar);
    405 	}
    406 	return (NULL);
    407 }
    408 
    409 struct acpi_memrange *
    410 acpi_res_memrange(struct acpi_resources *res, int idx)
    411 {
    412 	struct acpi_memrange *ar;
    413 
    414 	SIMPLEQ_FOREACH(ar, &res->ar_memrange, ar_list) {
    415 		if (ar->ar_index == idx)
    416 			return (ar);
    417 	}
    418 	return (NULL);
    419 }
    420 
    421 struct acpi_irq *
    422 acpi_res_irq(struct acpi_resources *res, int idx)
    423 {
    424 	struct acpi_irq *ar;
    425 
    426 	SIMPLEQ_FOREACH(ar, &res->ar_irq, ar_list) {
    427 		if (ar->ar_index == idx)
    428 			return (ar);
    429 	}
    430 	return (NULL);
    431 }
    432 
    433 struct acpi_drq *
    434 acpi_res_drq(struct acpi_resources *res, int idx)
    435 {
    436 	struct acpi_drq *ar;
    437 
    438 	SIMPLEQ_FOREACH(ar, &res->ar_drq, ar_list) {
    439 		if (ar->ar_index == idx)
    440 			return (ar);
    441 	}
    442 	return (NULL);
    443 }
    444 
    445 /*****************************************************************************
    446  * Default ACPI resource parse operations.
    447  *****************************************************************************/
    448 
    449 static void	acpi_res_parse_init(struct device *, void *, void **);
    450 static void	acpi_res_parse_fini(struct device *, void *);
    451 
    452 static void	acpi_res_parse_ioport(struct device *, void *, uint32_t,
    453 		    uint32_t);
    454 static void	acpi_res_parse_iorange(struct device *, void *, uint32_t,
    455 		    uint32_t, uint32_t, uint32_t);
    456 
    457 static void	acpi_res_parse_memory(struct device *, void *, uint32_t,
    458 		    uint32_t);
    459 static void	acpi_res_parse_memrange(struct device *, void *, uint32_t,
    460 		    uint32_t, uint32_t, uint32_t);
    461 
    462 static void	acpi_res_parse_irq(struct device *, void *, uint32_t);
    463 static void	acpi_res_parse_drq(struct device *, void *, uint32_t);
    464 
    465 static void	acpi_res_parse_start_dep(struct device *, void *, int);
    466 static void	acpi_res_parse_end_dep(struct device *, void *);
    467 
    468 const struct acpi_resource_parse_ops acpi_resource_parse_ops_default = {
    469 	acpi_res_parse_init,
    470 	acpi_res_parse_fini,
    471 
    472 	acpi_res_parse_ioport,
    473 	acpi_res_parse_iorange,
    474 
    475 	acpi_res_parse_memory,
    476 	acpi_res_parse_memrange,
    477 
    478 	acpi_res_parse_irq,
    479 	acpi_res_parse_drq,
    480 
    481 	acpi_res_parse_start_dep,
    482 	acpi_res_parse_end_dep,
    483 };
    484 
    485 static void
    486 acpi_res_parse_init(struct device *dev, void *arg, void **contextp)
    487 {
    488 	struct acpi_resources *res = arg;
    489 
    490 	SIMPLEQ_INIT(&res->ar_io);
    491 	res->ar_nio = 0;
    492 
    493 	SIMPLEQ_INIT(&res->ar_iorange);
    494 	res->ar_niorange = 0;
    495 
    496 	SIMPLEQ_INIT(&res->ar_mem);
    497 	res->ar_nmem = 0;
    498 
    499 	SIMPLEQ_INIT(&res->ar_memrange);
    500 	res->ar_nmemrange = 0;
    501 
    502 	SIMPLEQ_INIT(&res->ar_irq);
    503 	res->ar_nirq = 0;
    504 
    505 	SIMPLEQ_INIT(&res->ar_drq);
    506 	res->ar_ndrq = 0;
    507 
    508 	*contextp = res;
    509 }
    510 
    511 static void
    512 acpi_res_parse_fini(struct device *dev, void *context)
    513 {
    514 	struct acpi_resources *res = context;
    515 
    516 	/* Print the resources we're using. */
    517 	acpi_resource_print(dev, res);
    518 }
    519 
    520 static void
    521 acpi_res_parse_ioport(struct device *dev, void *context, uint32_t base,
    522     uint32_t length)
    523 {
    524 	struct acpi_resources *res = context;
    525 	struct acpi_io *ar;
    526 
    527 	ar = AcpiOsAllocate(sizeof(*ar));
    528 	if (ar == NULL) {
    529 		printf("%s: ACPI: unable to allocate I/O resource %d\n",
    530 		    dev->dv_xname, res->ar_nio);
    531 		res->ar_nio++;
    532 		return;
    533 	}
    534 
    535 	ar->ar_index = res->ar_nio++;
    536 	ar->ar_base = base;
    537 	ar->ar_length = length;
    538 
    539 	SIMPLEQ_INSERT_TAIL(&res->ar_io, ar, ar_list);
    540 }
    541 
    542 static void
    543 acpi_res_parse_iorange(struct device *dev, void *context, uint32_t low,
    544     uint32_t high, uint32_t length, uint32_t align)
    545 {
    546 	struct acpi_resources *res = context;
    547 	struct acpi_iorange *ar;
    548 
    549 	ar = AcpiOsAllocate(sizeof(*ar));
    550 	if (ar == NULL) {
    551 		printf("%s: ACPI: unable to allocate I/O range resource %d\n",
    552 		    dev->dv_xname, res->ar_niorange);
    553 		res->ar_niorange++;
    554 		return;
    555 	}
    556 
    557 	ar->ar_index = res->ar_niorange++;
    558 	ar->ar_low = low;
    559 	ar->ar_high = high;
    560 	ar->ar_length = length;
    561 	ar->ar_align = align;
    562 
    563 	SIMPLEQ_INSERT_TAIL(&res->ar_iorange, ar, ar_list);
    564 }
    565 
    566 static void
    567 acpi_res_parse_memory(struct device *dev, void *context, uint32_t base,
    568     uint32_t length)
    569 {
    570 	struct acpi_resources *res = context;
    571 	struct acpi_mem *ar;
    572 
    573 	ar = AcpiOsAllocate(sizeof(*ar));
    574 	if (ar == NULL) {
    575 		printf("%s: ACPI: unable to allocate Memory resource %d\n",
    576 		    dev->dv_xname, res->ar_nmem);
    577 		res->ar_nmem++;
    578 		return;
    579 	}
    580 
    581 	ar->ar_index = res->ar_nmem++;
    582 	ar->ar_base = base;
    583 	ar->ar_length = length;
    584 
    585 	SIMPLEQ_INSERT_TAIL(&res->ar_mem, ar, ar_list);
    586 }
    587 
    588 static void
    589 acpi_res_parse_memrange(struct device *dev, void *context, uint32_t low,
    590     uint32_t high, uint32_t length, uint32_t align)
    591 {
    592 	struct acpi_resources *res = context;
    593 	struct acpi_memrange *ar;
    594 
    595 	ar = AcpiOsAllocate(sizeof(*ar));
    596 	if (ar == NULL) {
    597 		printf("%s: ACPI: unable to allocate Memory range resource "
    598 		    "%d\n", dev->dv_xname, res->ar_nmemrange);
    599 		res->ar_nmemrange++;
    600 		return;
    601 	}
    602 
    603 	ar->ar_index = res->ar_nmemrange++;
    604 	ar->ar_low = low;
    605 	ar->ar_high = high;
    606 	ar->ar_length = length;
    607 	ar->ar_align = align;
    608 
    609 	SIMPLEQ_INSERT_TAIL(&res->ar_memrange, ar, ar_list);
    610 }
    611 
    612 static void
    613 acpi_res_parse_irq(struct device *dev, void *context, uint32_t irq)
    614 {
    615 	struct acpi_resources *res = context;
    616 	struct acpi_irq *ar;
    617 
    618 	ar = AcpiOsAllocate(sizeof(*ar));
    619 	if (ar == NULL) {
    620 		printf("%s: ACPI: unable to allocate IRQ resource %d\n",
    621 		    dev->dv_xname, res->ar_nirq);
    622 		res->ar_nirq++;
    623 		return;
    624 	}
    625 
    626 	ar->ar_index = res->ar_nirq++;
    627 	ar->ar_irq = irq;
    628 
    629 	SIMPLEQ_INSERT_TAIL(&res->ar_irq, ar, ar_list);
    630 }
    631 
    632 static void
    633 acpi_res_parse_drq(struct device *dev, void *context, uint32_t drq)
    634 {
    635 	struct acpi_resources *res = context;
    636 	struct acpi_drq *ar;
    637 
    638 	ar = AcpiOsAllocate(sizeof(*ar));
    639 	if (ar == NULL) {
    640 		printf("%s: ACPI: unable to allocate DRQ resource %d\n",
    641 		    dev->dv_xname, res->ar_ndrq);
    642 		res->ar_ndrq++;
    643 		return;
    644 	}
    645 
    646 	ar->ar_index = res->ar_ndrq++;
    647 	ar->ar_drq = drq;
    648 
    649 	SIMPLEQ_INSERT_TAIL(&res->ar_drq, ar, ar_list);
    650 }
    651 
    652 static void
    653 acpi_res_parse_start_dep(struct device *dev, void *context, int preference)
    654 {
    655 
    656 	printf("%s: ACPI: dependant functions not supported\n",
    657 	    dev->dv_xname);
    658 }
    659 
    660 static void
    661 acpi_res_parse_end_dep(struct device *dev, void *context)
    662 {
    663 
    664 	/* Nothing to do. */
    665 }
    666