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acpi.c revision 1.66
      1 /*	$NetBSD: acpi.c,v 1.66 2004/06/07 15:33:17 kochi Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2003 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Charles M. Hannum of By Noon Software, Inc.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the NetBSD
     21  *	Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  * Copyright 2001, 2003 Wasabi Systems, Inc.
     41  * All rights reserved.
     42  *
     43  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
     44  *
     45  * Redistribution and use in source and binary forms, with or without
     46  * modification, are permitted provided that the following conditions
     47  * are met:
     48  * 1. Redistributions of source code must retain the above copyright
     49  *    notice, this list of conditions and the following disclaimer.
     50  * 2. Redistributions in binary form must reproduce the above copyright
     51  *    notice, this list of conditions and the following disclaimer in the
     52  *    documentation and/or other materials provided with the distribution.
     53  * 3. All advertising materials mentioning features or use of this software
     54  *    must display the following acknowledgement:
     55  *	This product includes software developed for the NetBSD Project by
     56  *	Wasabi Systems, Inc.
     57  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
     58  *    or promote products derived from this software without specific prior
     59  *    written permission.
     60  *
     61  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
     62  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     63  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     64  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
     65  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     66  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     67  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     68  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     69  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     70  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     71  * POSSIBILITY OF SUCH DAMAGE.
     72  */
     73 
     74 /*
     75  * Autoconfiguration support for the Intel ACPI Component Architecture
     76  * ACPI reference implementation.
     77  */
     78 
     79 #include <sys/cdefs.h>
     80 __KERNEL_RCSID(0, "$NetBSD: acpi.c,v 1.66 2004/06/07 15:33:17 kochi Exp $");
     81 
     82 #include "opt_acpi.h"
     83 
     84 #include <sys/param.h>
     85 #include <sys/systm.h>
     86 #include <sys/device.h>
     87 #include <sys/malloc.h>
     88 #include <sys/kernel.h>
     89 #include <sys/proc.h>
     90 
     91 #include <dev/acpi/acpica.h>
     92 #include <dev/acpi/acpireg.h>
     93 #include <dev/acpi/acpivar.h>
     94 #include <dev/acpi/acpi_osd.h>
     95 #ifdef ACPIVERBOSE
     96 #include <dev/acpi/acpidevs_data.h>
     97 #endif
     98 
     99 #ifdef ACPI_PCI_FIXUP
    100 #include <dev/pci/pcidevs.h>
    101 #endif
    102 
    103 MALLOC_DECLARE(M_ACPI);
    104 
    105 #include <machine/acpi_machdep.h>
    106 
    107 #ifdef ACPI_DEBUGGER
    108 #define	ACPI_DBGR_INIT		0x01
    109 #define	ACPI_DBGR_TABLES	0x02
    110 #define	ACPI_DBGR_ENABLE	0x04
    111 #define	ACPI_DBGR_PROBE		0x08
    112 #define	ACPI_DBGR_RUNNING	0x10
    113 
    114 int	acpi_dbgr = 0x00;
    115 #endif
    116 
    117 static int	acpi_match(struct device *, struct cfdata *, void *);
    118 static void	acpi_attach(struct device *, struct device *, void *);
    119 
    120 static int	acpi_print(void *aux, const char *);
    121 
    122 extern struct cfdriver acpi_cd;
    123 
    124 CFATTACH_DECL(acpi, sizeof(struct acpi_softc),
    125     acpi_match, acpi_attach, NULL, NULL);
    126 
    127 /*
    128  * This is a flag we set when the ACPI subsystem is active.  Machine
    129  * dependent code may wish to skip other steps (such as attaching
    130  * subsystems that ACPI supercedes) when ACPI is active.
    131  */
    132 int	acpi_active;
    133 
    134 /*
    135  * Pointer to the ACPI subsystem's state.  There can be only
    136  * one ACPI instance.
    137  */
    138 struct acpi_softc *acpi_softc;
    139 
    140 /*
    141  * Locking stuff.
    142  */
    143 static struct simplelock acpi_slock;
    144 static int acpi_locked;
    145 
    146 /*
    147  * Prototypes.
    148  */
    149 static void		acpi_shutdown(void *);
    150 static ACPI_STATUS	acpi_disable(struct acpi_softc *sc);
    151 static void		acpi_build_tree(struct acpi_softc *);
    152 static ACPI_STATUS	acpi_make_devnode(ACPI_HANDLE, UINT32, void *, void **);
    153 
    154 static void		acpi_enable_fixed_events(struct acpi_softc *);
    155 #ifdef ACPI_PCI_FIXUP
    156 void			acpi_pci_fixup(struct acpi_softc *);
    157 #endif
    158 #if defined(ACPI_PCI_FIXUP) || defined(ACPI_ACTIVATE_DEV)
    159 static ACPI_STATUS	acpi_allocate_resources(ACPI_HANDLE handle);
    160 #endif
    161 
    162 /*
    163  * acpi_probe:
    164  *
    165  *	Probe for ACPI support.  This is called by the
    166  *	machine-dependent ACPI front-end.  All of the
    167  *	actual work is done by ACPICA.
    168  *
    169  *	NOTE: This is not an autoconfiguration interface function.
    170  */
    171 int
    172 acpi_probe(void)
    173 {
    174 	static int beenhere;
    175 	ACPI_STATUS rv;
    176 
    177 	if (beenhere != 0)
    178 		panic("acpi_probe: ACPI has already been probed");
    179 	beenhere = 1;
    180 
    181 	simple_lock_init(&acpi_slock);
    182 	acpi_locked = 0;
    183 
    184 	/*
    185 	 * Start up ACPICA.
    186 	 */
    187 #ifdef ACPI_DEBUGGER
    188 	if (acpi_dbgr & ACPI_DBGR_INIT)
    189 		acpi_osd_debugger();
    190 #endif
    191 
    192 	rv = AcpiInitializeSubsystem();
    193 	if (ACPI_FAILURE(rv)) {
    194 		printf("ACPI: unable to initialize ACPICA: %s\n",
    195 		    AcpiFormatException(rv));
    196 		return 0;
    197 	}
    198 
    199 #ifdef ACPI_DEBUGGER
    200 	if (acpi_dbgr & ACPI_DBGR_TABLES)
    201 		acpi_osd_debugger();
    202 #endif
    203 
    204 	rv = AcpiLoadTables();
    205 	if (ACPI_FAILURE(rv)) {
    206 		printf("ACPI: unable to load tables: %s\n",
    207 		    AcpiFormatException(rv));
    208 		return 0;
    209 	}
    210 
    211 	/*
    212 	 * Looks like we have ACPI!
    213 	 */
    214 
    215 	return 1;
    216 }
    217 
    218 /*
    219  * acpi_match:
    220  *
    221  *	Autoconfiguration `match' routine.
    222  */
    223 static int
    224 acpi_match(struct device *parent, struct cfdata *match, void *aux)
    225 {
    226 	struct acpibus_attach_args *aa = aux;
    227 
    228 	if (strcmp(aa->aa_busname, acpi_cd.cd_name) != 0)
    229 		return 0;
    230 
    231 	/*
    232 	 * XXX Check other locators?  Hard to know -- machine
    233 	 * dependent code has already checked for the presence
    234 	 * of ACPI by calling acpi_probe(), so I suppose we
    235 	 * don't really have to do anything else.
    236 	 */
    237 	return 1;
    238 }
    239 
    240 /*
    241  * acpi_attach:
    242  *
    243  *	Autoconfiguration `attach' routine.  Finish initializing
    244  *	ACPICA (some initialization was done in acpi_probe(),
    245  *	which was required to check for the presence of ACPI),
    246  *	and enable the ACPI subsystem.
    247  */
    248 static void
    249 acpi_attach(struct device *parent, struct device *self, void *aux)
    250 {
    251 	struct acpi_softc *sc = (void *) self;
    252 	struct acpibus_attach_args *aa = aux;
    253 	ACPI_STATUS rv;
    254 
    255 	printf("\n");
    256 
    257 	if (acpi_softc != NULL)
    258 		panic("acpi_attach: ACPI has already been attached");
    259 
    260 	sysmon_power_settype("acpi");
    261 
    262 	printf("%s: using Intel ACPI CA subsystem version %08x\n",
    263 	    sc->sc_dev.dv_xname, ACPI_CA_VERSION);
    264 
    265 	printf("%s: X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n",
    266 	    sc->sc_dev.dv_xname,
    267 	    AcpiGbl_XSDT->OemId, AcpiGbl_XSDT->OemTableId,
    268 	    AcpiGbl_XSDT->OemRevision,
    269 	    AcpiGbl_XSDT->AslCompilerId, AcpiGbl_XSDT->AslCompilerRevision);
    270 
    271 	sc->sc_quirks = acpi_find_quirks();
    272 
    273 	sc->sc_iot = aa->aa_iot;
    274 	sc->sc_memt = aa->aa_memt;
    275 	sc->sc_pc = aa->aa_pc;
    276 	sc->sc_pciflags = aa->aa_pciflags;
    277 	sc->sc_ic = aa->aa_ic;
    278 
    279 	acpi_softc = sc;
    280 
    281 	/*
    282 	 * Bring ACPI on-line.
    283 	 */
    284 #ifdef ACPI_DEBUGGER
    285 	if (acpi_dbgr & ACPI_DBGR_ENABLE)
    286 		acpi_osd_debugger();
    287 #endif
    288 
    289 	rv = AcpiEnableSubsystem(0);
    290 	if (ACPI_FAILURE(rv)) {
    291 		printf("%s: unable to enable ACPI: %s\n",
    292 		    sc->sc_dev.dv_xname, AcpiFormatException(rv));
    293 		return;
    294 	}
    295 
    296 	/* early EC handler initialization if ECDT table is available */
    297 #if NACPIEC > 0
    298 	acpiec_early_attach(&sc->sc_dev);
    299 #endif
    300 
    301 	rv = AcpiInitializeObjects(0);
    302 	if (ACPI_FAILURE(rv)) {
    303 		printf("%s: unable to initialize ACPI objects: %s\n",
    304 		    sc->sc_dev.dv_xname, AcpiFormatException(rv));
    305 		return;
    306 	}
    307 	acpi_active = 1;
    308 
    309 	/* Our current state is "awake". */
    310 	sc->sc_sleepstate = ACPI_STATE_S0;
    311 
    312 	/* Show SCI interrupt. */
    313 	if (AcpiGbl_FADT != NULL)
    314 		printf("%s: SCI interrupting at int %d\n",
    315 			sc->sc_dev.dv_xname, AcpiGbl_FADT->SciInt);
    316 	/*
    317 	 * Check for fixed-hardware features.
    318 	 */
    319 	acpi_enable_fixed_events(sc);
    320 
    321 	/*
    322 	 * Fix up PCI devices.
    323 	 */
    324 #ifdef ACPI_PCI_FIXUP
    325 	if ((sc->sc_quirks & (ACPI_QUIRK_BADPCI | ACPI_QUIRK_BADIRQ)) == 0)
    326 		acpi_pci_fixup(sc);
    327 #endif
    328 
    329 	/*
    330 	 * Scan the namespace and build our device tree.
    331 	 */
    332 #ifdef ACPI_DEBUGGER
    333 	if (acpi_dbgr & ACPI_DBGR_PROBE)
    334 		acpi_osd_debugger();
    335 #endif
    336 	acpi_md_callback((struct device *)sc);
    337 	acpi_build_tree(sc);
    338 
    339 	/*
    340 	 * Register a shutdown hook that disables certain ACPI
    341 	 * events that might happen and confuse us while we're
    342 	 * trying to shut down.
    343 	 */
    344 	sc->sc_sdhook = shutdownhook_establish(acpi_shutdown, sc);
    345 	if (sc->sc_sdhook == NULL)
    346 		printf("%s: WARNING: unable to register shutdown hook\n",
    347 		    sc->sc_dev.dv_xname);
    348 
    349 #ifdef ACPI_DEBUGGER
    350 	if (acpi_dbgr & ACPI_DBGR_RUNNING)
    351 		acpi_osd_debugger();
    352 #endif
    353 }
    354 
    355 /*
    356  * acpi_shutdown:
    357  *
    358  *	Shutdown hook for ACPI -- disable some events that
    359  *	might confuse us.
    360  */
    361 static void
    362 acpi_shutdown(void *arg)
    363 {
    364 	struct acpi_softc *sc = arg;
    365 	ACPI_STATUS rv;
    366 
    367 	rv = acpi_disable(sc);
    368 	if (ACPI_FAILURE(rv))
    369 		printf("%s: WARNING: unable to disable ACPI: %s\n",
    370 		    sc->sc_dev.dv_xname, AcpiFormatException(rv));
    371 }
    372 
    373 /*
    374  * acpi_disable:
    375  *
    376  *	Disable ACPI.
    377  */
    378 static ACPI_STATUS
    379 acpi_disable(struct acpi_softc *sc)
    380 {
    381 	ACPI_STATUS rv = AE_OK;
    382 
    383 #ifdef ACPI_DISABLE_ON_POWEROFF
    384 	if (acpi_active) {
    385 		rv = AcpiDisable();
    386 		if (ACPI_SUCCESS(rv))
    387 			acpi_active = 0;
    388 	}
    389 #endif
    390 	return rv;
    391 }
    392 
    393 struct acpi_make_devnode_state {
    394 	struct acpi_softc *softc;
    395 	struct acpi_scope *scope;
    396 };
    397 
    398 /*
    399  * acpi_build_tree:
    400  *
    401  *	Scan relevant portions of the ACPI namespace and attach
    402  *	child devices.
    403  */
    404 static void
    405 acpi_build_tree(struct acpi_softc *sc)
    406 {
    407 	static const char *scopes[] = {
    408 		"\\_PR_",	/* ACPI 1.0 processor namespace */
    409 		"\\_SB_",	/* system bus namespace */
    410 		"\\_SI_",	/* system idicator namespace */
    411 		"\\_TZ_",	/* ACPI 1.0 thermal zone namespace */
    412 		NULL,
    413 	};
    414 	struct acpi_attach_args aa;
    415 	struct acpi_make_devnode_state state;
    416 	struct acpi_scope *as;
    417 	struct acpi_devnode *ad;
    418 	ACPI_HANDLE parent;
    419 	ACPI_STATUS rv;
    420 	int i;
    421 
    422 	TAILQ_INIT(&sc->sc_scopes);
    423 
    424 	state.softc = sc;
    425 
    426 	/*
    427 	 * Scan the namespace and build our tree.
    428 	 */
    429 	for (i = 0; scopes[i] != NULL; i++) {
    430 		as = malloc(sizeof(*as), M_ACPI, M_WAITOK);
    431 		as->as_name = scopes[i];
    432 		TAILQ_INIT(&as->as_devnodes);
    433 
    434 		TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list);
    435 
    436 		state.scope = as;
    437 
    438 		rv = AcpiGetHandle(ACPI_ROOT_OBJECT, (char *) scopes[i],
    439 		    &parent);
    440 		if (ACPI_SUCCESS(rv)) {
    441 			AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100,
    442 			    acpi_make_devnode, &state, NULL);
    443 		}
    444 
    445 		/* Now, for this namespace, try and attach the devices. */
    446 		TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) {
    447 			aa.aa_node = ad;
    448 			aa.aa_iot = sc->sc_iot;
    449 			aa.aa_memt = sc->sc_memt;
    450 			aa.aa_pc = sc->sc_pc;
    451 			aa.aa_pciflags = sc->sc_pciflags;
    452 			aa.aa_ic = sc->sc_ic;
    453 
    454 			if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) {
    455 				/*
    456 				 * XXX We only attach devices which are:
    457 				 *
    458 				 *	- present
    459 				 *	- enabled
    460 				 *	- functioning properly
    461 				 *
    462 				 * However, if enabled, it's decoding resources,
    463 				 * so we should claim them, if possible.
    464 				 * Requires changes to bus_space(9).
    465 				 */
    466 				if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) ==
    467 				    ACPI_VALID_STA &&
    468 				    (ad->ad_devinfo->CurrentStatus &
    469 				     (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED|
    470 				      ACPI_STA_DEV_OK)) !=
    471 				    (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED|
    472 				     ACPI_STA_DEV_OK))
    473 					continue;
    474 
    475 				/*
    476 				 * XXX Same problem as above...
    477 				 */
    478 				if ((ad->ad_devinfo->Valid & ACPI_VALID_HID)
    479 				    == 0)
    480 					continue;
    481 			}
    482 
    483 			ad->ad_device = config_found(&sc->sc_dev,
    484 			    &aa, acpi_print);
    485 		}
    486 	}
    487 }
    488 
    489 #ifdef ACPI_ACTIVATE_DEV
    490 static void
    491 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di)
    492 {
    493 	ACPI_STATUS rv;
    494 	ACPI_BUFFER buf;
    495 
    496 	buf.Pointer = NULL;
    497 	buf.Length = ACPI_ALLOCATE_BUFFER;
    498 
    499 #ifdef ACPI_DEBUG
    500 	printf("acpi_activate_device: %s, old status=%x\n",
    501 	       (*di)->HardwareId.Value, (*di)->CurrentStatus);
    502 #endif
    503 
    504 	rv = acpi_allocate_resources(handle);
    505 	if (ACPI_FAILURE(rv)) {
    506 		printf("acpi: activate failed for %s\n",
    507 		       (*di)->HardwareId.Value);
    508 	} else {
    509 		printf("acpi: activated %s\n", (*di)->HardwareId.Value);
    510 	}
    511 
    512 	(void)AcpiGetObjectInfo(handle, &buf);
    513 	AcpiOsFree(*di);
    514 	*di = buf.Pointer;
    515 
    516 #ifdef ACPI_DEBUG
    517 	printf("acpi_activate_device: %s, new status=%x\n",
    518 	       (*di)->HardwareId.Value, (*di)->CurrentStatus);
    519 #endif
    520 }
    521 #endif /* ACPI_ACTIVATE_DEV */
    522 
    523 /*
    524  * acpi_make_devnode:
    525  *
    526  *	Make an ACPI devnode.
    527  */
    528 static ACPI_STATUS
    529 acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context,
    530     void **status)
    531 {
    532 	struct acpi_make_devnode_state *state = context;
    533 #if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG)
    534 	struct acpi_softc *sc = state->softc;
    535 #endif
    536 	struct acpi_scope *as = state->scope;
    537 	struct acpi_devnode *ad;
    538 	ACPI_OBJECT_TYPE type;
    539 	ACPI_BUFFER buf;
    540 	ACPI_DEVICE_INFO *devinfo;
    541 	ACPI_STATUS rv;
    542 
    543 	rv = AcpiGetType(handle, &type);
    544 	if (ACPI_SUCCESS(rv)) {
    545 		buf.Pointer = NULL;
    546 		buf.Length = ACPI_ALLOCATE_BUFFER;
    547 		rv = AcpiGetObjectInfo(handle, &buf);
    548 		if (ACPI_FAILURE(rv)) {
    549 #ifdef ACPI_DEBUG
    550 			printf("%s: AcpiGetObjectInfo failed: %s\n",
    551 			    sc->sc_dev.dv_xname, AcpiFormatException(rv));
    552 #endif
    553 			goto out; /* XXX why return OK */
    554 		}
    555 
    556 		devinfo = buf.Pointer;
    557 
    558 		switch (type) {
    559 		case ACPI_TYPE_DEVICE:
    560 #ifdef ACPI_ACTIVATE_DEV
    561 			if ((devinfo->Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) ==
    562 			    (ACPI_VALID_STA|ACPI_VALID_HID) &&
    563 			    (devinfo->CurrentStatus &
    564 			     (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) ==
    565 			    ACPI_STA_DEV_PRESENT)
    566 				acpi_activate_device(handle, &devinfo);
    567 
    568 			/* FALLTHROUGH */
    569 #endif
    570 
    571 		case ACPI_TYPE_PROCESSOR:
    572 		case ACPI_TYPE_THERMAL:
    573 		case ACPI_TYPE_POWER:
    574 			ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO);
    575 			if (ad == NULL)
    576 				return AE_NO_MEMORY;
    577 
    578 			ad->ad_devinfo = devinfo;
    579 			ad->ad_handle = handle;
    580 			ad->ad_level = level;
    581 			ad->ad_scope = as;
    582 			ad->ad_type = type;
    583 
    584 			TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list);
    585 
    586 			if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0)
    587 				goto out;
    588 
    589 #ifdef ACPI_EXTRA_DEBUG
    590 			printf("%s: HID %s found in scope %s level %d\n",
    591 			    sc->sc_dev.dv_xname,
    592 			    ad->ad_devinfo->HardwareId.Value,
    593 			    as->as_name, ad->ad_level);
    594 			if (ad->ad_devinfo->Valid & ACPI_VALID_UID)
    595 				printf("       UID %s\n",
    596 				    ad->ad_devinfo->UniqueId.Value);
    597 			if (ad->ad_devinfo->Valid & ACPI_VALID_ADR)
    598 				printf("       ADR 0x%016qx\n",
    599 				    ad->ad_devinfo->Address);
    600 			if (ad->ad_devinfo->Valid & ACPI_VALID_STA)
    601 				printf("       STA 0x%08x\n",
    602 				    ad->ad_devinfo->CurrentStatus);
    603 #endif
    604 		}
    605 	}
    606  out:
    607 	return AE_OK;
    608 }
    609 
    610 /*
    611  * acpi_print:
    612  *
    613  *	Autoconfiguration print routine.
    614  */
    615 static int
    616 acpi_print(void *aux, const char *pnp)
    617 {
    618 	struct acpi_attach_args *aa = aux;
    619 	ACPI_STATUS rv;
    620 
    621 	if (pnp) {
    622 		if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) {
    623 			char *pnpstr =
    624 			    aa->aa_node->ad_devinfo->HardwareId.Value;
    625 			char *str;
    626 
    627 			aprint_normal("%s ", pnpstr);
    628 			rv = acpi_eval_string(aa->aa_node->ad_handle,
    629 			    "_STR", &str);
    630 			if (ACPI_SUCCESS(rv)) {
    631 				aprint_normal("[%s] ", str);
    632 				AcpiOsFree(str);
    633 			}
    634 #ifdef ACPIVERBOSE
    635 			else {
    636 				int i;
    637 
    638 				for (i = 0; i < sizeof(acpi_knowndevs) /
    639 				    sizeof(acpi_knowndevs[0]); i++) {
    640 					if (strcmp(acpi_knowndevs[i].pnp,
    641 					    pnpstr) == 0) {
    642 						printf("[%s] ",
    643 						    acpi_knowndevs[i].str);
    644 					}
    645 				}
    646 			}
    647 
    648 #endif
    649 		} else {
    650 			aprint_normal("ACPI Object Type '%s' (0x%02x) ",
    651 			   AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type),
    652 			   aa->aa_node->ad_devinfo->Type);
    653 		}
    654 		aprint_normal("at %s", pnp);
    655 	} else {
    656 		if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) {
    657 			aprint_normal(" (%s", aa->aa_node->ad_devinfo->HardwareId.Value);
    658 			if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) {
    659 				char *uid;
    660 
    661 				uid = aa->aa_node->ad_devinfo->UniqueId.Value;
    662 				if (uid[0] == '\0')
    663 					uid = "<null>";
    664 				aprint_normal("-%s", uid);
    665 			}
    666 			aprint_normal(")");
    667 		}
    668 	}
    669 
    670 	return UNCONF;
    671 }
    672 
    673 /*****************************************************************************
    674  * ACPI fixed-hardware feature handlers
    675  *****************************************************************************/
    676 
    677 static UINT32	acpi_fixed_button_handler(void *);
    678 static void	acpi_fixed_button_pressed(void *);
    679 
    680 /*
    681  * acpi_enable_fixed_events:
    682  *
    683  *	Enable any fixed-hardware feature handlers.
    684  */
    685 static void
    686 acpi_enable_fixed_events(struct acpi_softc *sc)
    687 {
    688 	static int beenhere;
    689 	ACPI_STATUS rv;
    690 
    691 	KASSERT(beenhere == 0);
    692 	beenhere = 1;
    693 
    694 	/*
    695 	 * Check for fixed-hardware buttons.
    696 	 */
    697 
    698 	if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->PwrButton == 0) {
    699 		printf("%s: fixed-feature power button present\n",
    700 		    sc->sc_dev.dv_xname);
    701 		sc->sc_smpsw_power.smpsw_name = sc->sc_dev.dv_xname;
    702 		sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER;
    703 		if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) {
    704 			printf("%s: unable to register fixed power button "
    705 			    "with sysmon\n", sc->sc_dev.dv_xname);
    706 		} else {
    707 			rv = AcpiInstallFixedEventHandler(
    708 			    ACPI_EVENT_POWER_BUTTON,
    709 			    acpi_fixed_button_handler, &sc->sc_smpsw_power);
    710 			if (ACPI_FAILURE(rv)) {
    711 				printf("%s: unable to install handler for "
    712 				    "fixed power button: %s\n",
    713 				    sc->sc_dev.dv_xname,
    714 				    AcpiFormatException(rv));
    715 			}
    716 		}
    717 	}
    718 
    719 	if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->SleepButton == 0) {
    720 		printf("%s: fixed-feature sleep button present\n",
    721 		    sc->sc_dev.dv_xname);
    722 		sc->sc_smpsw_sleep.smpsw_name = sc->sc_dev.dv_xname;
    723 		sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP;
    724 		if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) {
    725 			printf("%s: unable to register fixed sleep button "
    726 			    "with sysmon\n", sc->sc_dev.dv_xname);
    727 		} else {
    728 			rv = AcpiInstallFixedEventHandler(
    729 			    ACPI_EVENT_SLEEP_BUTTON,
    730 			    acpi_fixed_button_handler, &sc->sc_smpsw_sleep);
    731 			if (ACPI_FAILURE(rv)) {
    732 				printf("%s: unable to install handler for "
    733 				    "fixed sleep button: %s\n",
    734 				    sc->sc_dev.dv_xname,
    735 				    AcpiFormatException(rv));
    736 			}
    737 		}
    738 	}
    739 }
    740 
    741 /*
    742  * acpi_fixed_button_handler:
    743  *
    744  *	Event handler for the fixed buttons.
    745  */
    746 static UINT32
    747 acpi_fixed_button_handler(void *context)
    748 {
    749 	struct sysmon_pswitch *smpsw = context;
    750 	int rv;
    751 
    752 #ifdef ACPI_BUT_DEBUG
    753 	printf("%s: fixed button handler\n", smpsw->smpsw_name);
    754 #endif
    755 
    756 	rv = AcpiOsQueueForExecution(OSD_PRIORITY_LO,
    757 	    acpi_fixed_button_pressed, smpsw);
    758 	if (ACPI_FAILURE(rv))
    759 		printf("%s: WARNING: unable to queue fixed button pressed "
    760 		    "callback: %s\n", smpsw->smpsw_name,
    761 		    AcpiFormatException(rv));
    762 
    763 	return ACPI_INTERRUPT_HANDLED;
    764 }
    765 
    766 /*
    767  * acpi_fixed_button_pressed:
    768  *
    769  *	Deal with a fixed button being pressed.
    770  */
    771 static void
    772 acpi_fixed_button_pressed(void *context)
    773 {
    774 	struct sysmon_pswitch *smpsw = context;
    775 
    776 #ifdef ACPI_BUT_DEBUG
    777 	printf("%s: fixed button pressed, calling sysmon\n",
    778 	    smpsw->smpsw_name);
    779 #endif
    780 
    781 	sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED);
    782 }
    783 
    784 /*****************************************************************************
    785  * ACPI utility routines.
    786  *****************************************************************************/
    787 
    788 /*
    789  * acpi_eval_integer:
    790  *
    791  *	Evaluate an integer object.
    792  */
    793 ACPI_STATUS
    794 acpi_eval_integer(ACPI_HANDLE handle, char *path, ACPI_INTEGER *valp)
    795 {
    796 	ACPI_STATUS rv;
    797 	ACPI_BUFFER buf;
    798 	ACPI_OBJECT param;
    799 
    800 	if (handle == NULL)
    801 		handle = ACPI_ROOT_OBJECT;
    802 
    803 	buf.Pointer = &param;
    804 	buf.Length = sizeof(param);
    805 
    806 	rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_INTEGER);
    807 	if (ACPI_SUCCESS(rv))
    808 		*valp = param.Integer.Value;
    809 
    810 	return rv;
    811 }
    812 
    813 /*
    814  * acpi_eval_string:
    815  *
    816  *	Evaluate a (Unicode) string object.
    817  */
    818 ACPI_STATUS
    819 acpi_eval_string(ACPI_HANDLE handle, char *path, char **stringp)
    820 {
    821 	ACPI_STATUS rv;
    822 	ACPI_BUFFER buf;
    823 
    824 	if (handle == NULL)
    825 		handle = ACPI_ROOT_OBJECT;
    826 
    827 	buf.Pointer = NULL;
    828 	buf.Length = ACPI_ALLOCATE_BUFFER;
    829 
    830 	rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_STRING);
    831 	if (ACPI_SUCCESS(rv)) {
    832 		ACPI_OBJECT *param = buf.Pointer;
    833 		char *ptr = param->String.Pointer;
    834 		size_t len = param->String.Length;
    835 		if ((*stringp = AcpiOsAllocate(len)) == NULL)
    836 			rv = AE_NO_MEMORY;
    837 		else
    838 			(void)memcpy(*stringp, ptr, len);
    839 		AcpiOsFree(param);
    840 	}
    841 
    842 	return rv;
    843 }
    844 
    845 
    846 /*
    847  * acpi_eval_struct:
    848  *
    849  *	Evaluate a more complex structure.
    850  *	Caller must free buf.Pointer by AcpiOsFree().
    851  */
    852 ACPI_STATUS
    853 acpi_eval_struct(ACPI_HANDLE handle, char *path, ACPI_BUFFER *bufp)
    854 {
    855 	ACPI_STATUS rv;
    856 
    857 	if (handle == NULL)
    858 		handle = ACPI_ROOT_OBJECT;
    859 
    860 	bufp->Pointer = NULL;
    861 	bufp->Length = ACPI_ALLOCATE_BUFFER;
    862 
    863 	rv = AcpiEvaluateObject(handle, path, NULL, bufp);
    864 
    865 	return rv;
    866 }
    867 
    868 /*
    869  * acpi_foreach_package_object:
    870  *
    871  *	Iterate over all objects in a in a packages and pass then all
    872  *	to a function. If the called function returns non AE_OK, the
    873  *	iteration is stopped and that value is returned.
    874  */
    875 
    876 ACPI_STATUS
    877 acpi_foreach_package_object(ACPI_OBJECT *pkg,
    878     ACPI_STATUS (*func)(ACPI_OBJECT *, void *),
    879     void *arg)
    880 {
    881 	ACPI_STATUS rv = AE_OK;
    882 	int i;
    883 
    884 	if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE)
    885 		return AE_BAD_PARAMETER;
    886 
    887 	for (i = 0; i < pkg->Package.Count; i++) {
    888 		rv = (*func)(&pkg->Package.Elements[i], arg);
    889 		if (ACPI_FAILURE(rv))
    890 			break;
    891 	}
    892 
    893 	return rv;
    894 }
    895 
    896 const char *
    897 acpi_name(ACPI_HANDLE handle)
    898 {
    899 	static char buffer[80];
    900 	ACPI_BUFFER buf;
    901 	ACPI_STATUS rv;
    902 
    903 	buf.Length = sizeof(buffer);
    904 	buf.Pointer = buffer;
    905 
    906 	rv = AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf);
    907 	if (ACPI_FAILURE(rv))
    908 		return "(unknown acpi path)";
    909 	return buffer;
    910 }
    911 
    912 /*
    913  * acpi_get:
    914  *
    915  *	Fetch data info the specified (empty) ACPI buffer.
    916  *	Caller must free buf.Pointer by AcpiOsFree().
    917  */
    918 ACPI_STATUS
    919 acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf,
    920     ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *))
    921 {
    922 	buf->Pointer = NULL;
    923 	buf->Length = ACPI_ALLOCATE_BUFFER;
    924 
    925 	return (*getit)(handle, buf);
    926 }
    927 
    928 
    929 /*
    930  * acpi_match_hid
    931  *
    932  *	Match given ids against _HID and _CIDs
    933  */
    934 int
    935 acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids)
    936 {
    937 	int i;
    938 
    939 	while (*ids) {
    940 		if (ad->Valid & ACPI_VALID_HID) {
    941 			if (pmatch(ad->HardwareId.Value, *ids, NULL) == 2)
    942 				return 1;
    943 		}
    944 
    945 		if (ad->Valid & ACPI_VALID_CID) {
    946 			for (i = 0; i < ad->CompatibilityId.Count; i++) {
    947 				if (pmatch(ad->CompatibilityId.Id[i].Value, *ids, NULL) == 2)
    948 					return 1;
    949 			}
    950 		}
    951 		ids++;
    952 	}
    953 
    954 	return 0;
    955 }
    956 
    957 
    958 /*****************************************************************************
    959  * ACPI sleep support.
    960  *****************************************************************************/
    961 
    962 static int
    963 is_available_state(struct acpi_softc *sc, int state)
    964 {
    965 	UINT8 type_a, type_b;
    966 
    967 	return ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state,
    968 				&type_a, &type_b));
    969 }
    970 
    971 /*
    972  * acpi_enter_sleep_state:
    973  *
    974  *	enter to the specified sleep state.
    975  */
    976 
    977 ACPI_STATUS
    978 acpi_enter_sleep_state(struct acpi_softc *sc, int state)
    979 {
    980 	int s;
    981 	ACPI_STATUS ret = AE_OK;
    982 
    983 	switch (state) {
    984 	case ACPI_STATE_S0:
    985 		break;
    986 	case ACPI_STATE_S1:
    987 	case ACPI_STATE_S2:
    988 	case ACPI_STATE_S3:
    989 	case ACPI_STATE_S4:
    990 		if (!is_available_state(sc, state)) {
    991 			printf("acpi: cannot enter the sleep state (%d).\n",
    992 			       state);
    993 			break;
    994 		}
    995 		ret = AcpiEnterSleepStatePrep(state);
    996 		if (ACPI_FAILURE(ret)) {
    997 			printf("acpi: failed preparing to sleep (%s)\n",
    998 			       AcpiFormatException(ret));
    999 			break;
   1000 		}
   1001 		if (state==ACPI_STATE_S1) {
   1002 			/* just enter the state */
   1003 			acpi_md_OsDisableInterrupt();
   1004 			AcpiEnterSleepState((UINT8)state);
   1005 			AcpiUtReleaseMutex(ACPI_MTX_HARDWARE);
   1006 		} else {
   1007 			/* XXX: powerhooks(9) framework is too poor to
   1008 			 * support ACPI sleep state...
   1009 			 */
   1010 			dopowerhooks(PWR_SOFTSUSPEND);
   1011 			s = splhigh();
   1012 			dopowerhooks(PWR_SUSPEND);
   1013 			acpi_md_sleep(state);
   1014 			dopowerhooks(PWR_RESUME);
   1015 			splx(s);
   1016 			dopowerhooks(PWR_SOFTRESUME);
   1017 			if (state==ACPI_STATE_S4)
   1018 				AcpiEnable();
   1019 		}
   1020 		AcpiLeaveSleepState((UINT8)state);
   1021 		break;
   1022 	case ACPI_STATE_S5:
   1023 		ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5);
   1024 		if (ACPI_FAILURE(ret)) {
   1025 			printf("acpi: failed preparing to sleep (%s)\n",
   1026 			       AcpiFormatException(ret));
   1027 			break;
   1028 		}
   1029 		acpi_md_OsDisableInterrupt();
   1030 		AcpiEnterSleepState(ACPI_STATE_S5);
   1031 		printf("WARNING: powerdown failed!\n");
   1032 		break;
   1033 	}
   1034 
   1035 	return ret;
   1036 }
   1037 
   1038 #ifdef ACPI_PCI_FIXUP
   1039 ACPI_STATUS acpi_pci_fixup_bus(ACPI_HANDLE, UINT32, void *, void **);
   1040 /*
   1041  * acpi_pci_fixup:
   1042  *
   1043  *	Set up PCI devices that BIOS didn't handle right.
   1044  *	Iterate through all devices and try to get the _PTR
   1045  *	(PCI Routing Table).  If it exists then make sure all
   1046  *	interrupt links that it uses are working.
   1047  */
   1048 void
   1049 acpi_pci_fixup(struct acpi_softc *sc)
   1050 {
   1051 	ACPI_HANDLE parent;
   1052 	ACPI_STATUS rv;
   1053 
   1054 #ifdef ACPI_DEBUG
   1055 	printf("acpi_pci_fixup starts:\n");
   1056 #endif
   1057 	rv = AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &parent);
   1058 	if (ACPI_FAILURE(rv))
   1059 		return;
   1060 	sc->sc_pci_bus = 0;
   1061 	AcpiWalkNamespace(ACPI_TYPE_DEVICE, parent, 100,
   1062 	    acpi_pci_fixup_bus, sc, NULL);
   1063 }
   1064 
   1065 static uint
   1066 acpi_get_intr(ACPI_HANDLE handle)
   1067 {
   1068 	ACPI_BUFFER ret;
   1069 	ACPI_STATUS rv;
   1070 	ACPI_RESOURCE *res;
   1071 	ACPI_RESOURCE_IRQ *irq;
   1072 	uint intr;
   1073 
   1074 	intr = -1;
   1075 	rv = acpi_get(handle, &ret, AcpiGetCurrentResources);
   1076 	if (ACPI_FAILURE(rv))
   1077 		return intr;
   1078 	for (res = ret.Pointer; res->Id != ACPI_RSTYPE_END_TAG;
   1079 	     res = ACPI_NEXT_RESOURCE(res)) {
   1080 		if (res->Id == ACPI_RSTYPE_IRQ) {
   1081 			irq = (ACPI_RESOURCE_IRQ *)&res->Data;
   1082 			if (irq->NumberOfInterrupts == 1)
   1083 				intr = irq->Interrupts[0];
   1084 			break;
   1085 		}
   1086 	}
   1087 	AcpiOsFree(ret.Pointer);
   1088 	return intr;
   1089 }
   1090 
   1091 static void
   1092 acpi_pci_set_line(int bus, int dev, int pin, int line)
   1093 {
   1094 	ACPI_STATUS err;
   1095 	ACPI_PCI_ID pid;
   1096 	UINT32 intr, id, bhlc;
   1097 	int func, nfunc;
   1098 
   1099 	pid.Bus = bus;
   1100 	pid.Device = dev;
   1101 	pid.Function = 0;
   1102 
   1103 	err = AcpiOsReadPciConfiguration(&pid, PCI_BHLC_REG, &bhlc, 32);
   1104 	if (err)
   1105 		return;
   1106 	if (PCI_HDRTYPE_MULTIFN(bhlc))
   1107 		nfunc = 8;
   1108 	else
   1109 		nfunc = 1;
   1110 
   1111 	for (func = 0; func < nfunc; func++) {
   1112 		pid.Function = func;
   1113 
   1114 		err = AcpiOsReadPciConfiguration(&pid, PCI_ID_REG, &id, 32);
   1115 		if (err || PCI_VENDOR(id) == PCI_VENDOR_INVALID ||
   1116 		    PCI_VENDOR(id) == 0)
   1117 			continue;
   1118 
   1119 		err = AcpiOsReadPciConfiguration(&pid, PCI_INTERRUPT_REG,
   1120 			  &intr, 32);
   1121 		if (err) {
   1122 			printf("AcpiOsReadPciConfiguration failed %d\n", err);
   1123 			return;
   1124 		}
   1125 		if (pin == PCI_INTERRUPT_PIN(intr) &&
   1126 		    line != PCI_INTERRUPT_LINE(intr)) {
   1127 #ifdef ACPI_DEBUG
   1128 			printf("acpi fixup pci intr: %d:%d:%d %c: %d -> %d\n",
   1129 			       bus, dev, func,
   1130 			       pin + '@', PCI_INTERRUPT_LINE(intr),
   1131 			       line);
   1132 #endif
   1133 			intr &= ~(PCI_INTERRUPT_LINE_MASK <<
   1134 				  PCI_INTERRUPT_LINE_SHIFT);
   1135 			intr |= line << PCI_INTERRUPT_LINE_SHIFT;
   1136 			err = AcpiOsWritePciConfiguration(&pid,
   1137 				  PCI_INTERRUPT_REG, intr, 32);
   1138 			if (err) {
   1139 				printf("AcpiOsWritePciConfiguration failed"
   1140 				       " %d\n", err);
   1141 				return;
   1142 			}
   1143 		}
   1144 	}
   1145 }
   1146 
   1147 ACPI_STATUS
   1148 acpi_pci_fixup_bus(ACPI_HANDLE handle, UINT32 level, void *context,
   1149 		   void **status)
   1150 {
   1151 	struct acpi_softc *sc = context;
   1152 	ACPI_STATUS rv;
   1153 	ACPI_BUFFER buf;
   1154 	UINT8 *Buffer;
   1155 	ACPI_PCI_ROUTING_TABLE *PrtElement;
   1156 	ACPI_HANDLE link;
   1157 	uint line;
   1158 	ACPI_INTEGER val;
   1159 
   1160 	rv = acpi_get(handle, &buf, AcpiGetIrqRoutingTable);
   1161 	if (ACPI_FAILURE(rv))
   1162 		return AE_OK;
   1163 
   1164 	/*
   1165 	 * If at level 1, this is a PCI root bus. Try the _BBN method
   1166 	 * to get the right PCI bus numbering for the following
   1167 	 * busses (this is a depth-first walk). It may fail,
   1168 	 * for example if there's only one root bus, but that
   1169 	 * case should be ok, so we'll ignore that.
   1170 	 */
   1171 	if (level == 1) {
   1172 		rv = acpi_eval_integer(handle, METHOD_NAME__BBN, &val);
   1173 		if (!ACPI_FAILURE(rv)) {
   1174 #ifdef ACPI_DEBUG
   1175 			printf("%s: fixup: _BBN success, bus # was %d now %d\n",
   1176 			    sc->sc_dev.dv_xname, sc->sc_pci_bus,
   1177 			    ACPI_LOWORD(val));
   1178 #endif
   1179 			sc->sc_pci_bus = ACPI_LOWORD(val);
   1180 		}
   1181 	}
   1182 
   1183 
   1184 #ifdef ACPI_DEBUG
   1185 	printf("%s: fixing up PCI bus %d at level %u\n", sc->sc_dev.dv_xname,
   1186 	    sc->sc_pci_bus, level);
   1187 #endif
   1188 
   1189         for (Buffer = buf.Pointer; ; Buffer += PrtElement->Length) {
   1190 		PrtElement = (ACPI_PCI_ROUTING_TABLE *)Buffer;
   1191 		if (PrtElement->Length == 0)
   1192 			break;
   1193 		if (PrtElement->Source[0] == 0)
   1194 			continue;
   1195 
   1196 		rv = AcpiGetHandle(NULL, PrtElement->Source, &link);
   1197 		if (ACPI_FAILURE(rv))
   1198 			continue;
   1199 		line = acpi_get_intr(link);
   1200 		if (line == -1) {
   1201 #ifdef ACPI_DEBUG
   1202 			printf("%s: fixing up intr link %s\n",
   1203 			    sc->sc_dev.dv_xname, PrtElement->Source);
   1204 #endif
   1205 			rv = acpi_allocate_resources(link);
   1206 			if (ACPI_FAILURE(rv)) {
   1207 				printf("%s: interrupt allocation failed %s\n",
   1208 				    sc->sc_dev.dv_xname, PrtElement->Source);
   1209 				continue;
   1210 			}
   1211 			line = acpi_get_intr(link);
   1212 			if (line == -1) {
   1213 				printf("%s: get intr failed %s\n",
   1214 				    sc->sc_dev.dv_xname, PrtElement->Source);
   1215 				continue;
   1216 			}
   1217 		}
   1218 
   1219 		acpi_pci_set_line(sc->sc_pci_bus, PrtElement->Address >> 16,
   1220 		    PrtElement->Pin + 1, line);
   1221 	}
   1222 
   1223 	sc->sc_pci_bus++;
   1224 
   1225 	AcpiOsFree(buf.Pointer);
   1226 	return AE_OK;
   1227 }
   1228 #endif /* ACPI_PCI_FIXUP */
   1229 
   1230 #if defined(ACPI_PCI_FIXUP) || defined(ACPI_ACTIVATE_DEV)
   1231 /* XXX This very incomplete */
   1232 static ACPI_STATUS
   1233 acpi_allocate_resources(ACPI_HANDLE handle)
   1234 {
   1235 	ACPI_BUFFER bufp, bufc, bufn;
   1236 	ACPI_RESOURCE *resp, *resc, *resn;
   1237 	ACPI_RESOURCE_IRQ *irq;
   1238 	ACPI_STATUS rv;
   1239 	uint delta;
   1240 
   1241 	rv = acpi_get(handle, &bufp, AcpiGetPossibleResources);
   1242 	if (ACPI_FAILURE(rv))
   1243 		goto out;
   1244 	rv = acpi_get(handle, &bufc, AcpiGetCurrentResources);
   1245 	if (ACPI_FAILURE(rv)) {
   1246 		goto out1;
   1247 	}
   1248 
   1249 	bufn.Length = 1000;
   1250 	bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK);
   1251 	resp = bufp.Pointer;
   1252 	resc = bufc.Pointer;
   1253 	while (resc->Id != ACPI_RSTYPE_END_TAG &&
   1254 	       resp->Id != ACPI_RSTYPE_END_TAG) {
   1255 		while (resc->Id != resp->Id && resp->Id != ACPI_RSTYPE_END_TAG)
   1256 			resp = ACPI_NEXT_RESOURCE(resp);
   1257 		if (resp->Id == ACPI_RSTYPE_END_TAG)
   1258 			break;
   1259 		/* Found identical Id */
   1260 		resn->Id = resc->Id;
   1261 		switch (resc->Id) {
   1262 		case ACPI_RSTYPE_IRQ:
   1263 			memcpy(&resn->Data, &resp->Data,
   1264 			       sizeof(ACPI_RESOURCE_IRQ));
   1265 			irq = (ACPI_RESOURCE_IRQ *)&resn->Data;
   1266 			irq->Interrupts[0] =
   1267 			    ((ACPI_RESOURCE_IRQ *)&resp->Data)->
   1268 			        Interrupts[irq->NumberOfInterrupts-1];
   1269 			irq->NumberOfInterrupts = 1;
   1270 			resn->Length = ACPI_SIZEOF_RESOURCE(ACPI_RESOURCE_IRQ);
   1271 			break;
   1272 		case ACPI_RSTYPE_IO:
   1273 			memcpy(&resn->Data, &resp->Data,
   1274 			       sizeof(ACPI_RESOURCE_IO));
   1275 			resn->Length = resp->Length;
   1276 			break;
   1277 		default:
   1278 			printf("acpi_allocate_resources: res=%d\n", resc->Id);
   1279 			rv = AE_BAD_DATA;
   1280 			goto out2;
   1281 		}
   1282 		resc = ACPI_NEXT_RESOURCE(resc);
   1283 		resn = ACPI_NEXT_RESOURCE(resn);
   1284 		delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer;
   1285 		if (delta >=
   1286 		    bufn.Length-ACPI_SIZEOF_RESOURCE(ACPI_RESOURCE_DATA)) {
   1287 			bufn.Length *= 2;
   1288 			bufn.Pointer = realloc(bufn.Pointer, bufn.Length,
   1289 					       M_ACPI, M_WAITOK);
   1290 			resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta);
   1291 		}
   1292 	}
   1293 	if (resc->Id != ACPI_RSTYPE_END_TAG) {
   1294 		printf("acpi_allocate_resources: resc not exhausted\n");
   1295 		rv = AE_BAD_DATA;
   1296 		goto out3;
   1297 	}
   1298 
   1299 	resn->Id = ACPI_RSTYPE_END_TAG;
   1300 	rv = AcpiSetCurrentResources(handle, &bufn);
   1301 	if (ACPI_FAILURE(rv)) {
   1302 		printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n",
   1303 		       AcpiFormatException(rv));
   1304 	}
   1305 
   1306 out3:
   1307 	free(bufn.Pointer, M_ACPI);
   1308 out2:
   1309 	AcpiOsFree(bufc.Pointer);
   1310 out1:
   1311 	AcpiOsFree(bufp.Pointer);
   1312 out:
   1313 	return rv;
   1314 }
   1315 #endif /* ACPI_PCI_FIXUP || ACPI_ACTIVATE_DEV */
   1316