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acpi.c revision 1.28
      1  1.28      fvdl /*	$NetBSD: acpi.c,v 1.28 2003/01/07 18:46:48 fvdl Exp $	*/
      2   1.1   thorpej 
      3   1.1   thorpej /*
      4   1.1   thorpej  * Copyright 2001 Wasabi Systems, Inc.
      5   1.1   thorpej  * All rights reserved.
      6   1.1   thorpej  *
      7   1.1   thorpej  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
      8   1.1   thorpej  *
      9   1.1   thorpej  * Redistribution and use in source and binary forms, with or without
     10   1.1   thorpej  * modification, are permitted provided that the following conditions
     11   1.1   thorpej  * are met:
     12   1.1   thorpej  * 1. Redistributions of source code must retain the above copyright
     13   1.1   thorpej  *    notice, this list of conditions and the following disclaimer.
     14   1.1   thorpej  * 2. Redistributions in binary form must reproduce the above copyright
     15   1.1   thorpej  *    notice, this list of conditions and the following disclaimer in the
     16   1.1   thorpej  *    documentation and/or other materials provided with the distribution.
     17   1.1   thorpej  * 3. All advertising materials mentioning features or use of this software
     18   1.1   thorpej  *    must display the following acknowledgement:
     19   1.1   thorpej  *	This product includes software developed for the NetBSD Project by
     20   1.1   thorpej  *	Wasabi Systems, Inc.
     21   1.1   thorpej  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
     22   1.1   thorpej  *    or promote products derived from this software without specific prior
     23   1.1   thorpej  *    written permission.
     24   1.1   thorpej  *
     25   1.1   thorpej  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
     26   1.1   thorpej  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     27   1.1   thorpej  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     28   1.1   thorpej  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
     29   1.1   thorpej  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     30   1.1   thorpej  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31   1.1   thorpej  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32   1.1   thorpej  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     33   1.1   thorpej  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34   1.1   thorpej  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     35   1.1   thorpej  * POSSIBILITY OF SUCH DAMAGE.
     36   1.1   thorpej  */
     37   1.1   thorpej 
     38   1.1   thorpej /*
     39   1.1   thorpej  * Autoconfiguration support for the Intel ACPI Component Architecture
     40   1.1   thorpej  * ACPI reference implementation.
     41   1.1   thorpej  */
     42   1.5     lukem 
     43   1.5     lukem #include <sys/cdefs.h>
     44  1.28      fvdl __KERNEL_RCSID(0, "$NetBSD: acpi.c,v 1.28 2003/01/07 18:46:48 fvdl Exp $");
     45  1.27  christos 
     46  1.27  christos #include "opt_acpi.h"
     47   1.1   thorpej 
     48   1.1   thorpej #include <sys/param.h>
     49   1.1   thorpej #include <sys/systm.h>
     50   1.1   thorpej #include <sys/device.h>
     51   1.1   thorpej #include <sys/malloc.h>
     52   1.1   thorpej 
     53   1.1   thorpej #include <dev/acpi/acpica.h>
     54   1.1   thorpej #include <dev/acpi/acpireg.h>
     55   1.1   thorpej #include <dev/acpi/acpivar.h>
     56   1.1   thorpej #include <dev/acpi/acpi_osd.h>
     57  1.27  christos #ifdef ACPIVERBOSE
     58  1.27  christos #include <dev/acpi/acpidevs_data.h>
     59  1.27  christos #endif
     60   1.1   thorpej 
     61  1.13  augustss #ifndef ACPI_PCI_FIXUP
     62  1.13  augustss #define ACPI_PCI_FIXUP 1
     63  1.13  augustss #endif
     64  1.13  augustss 
     65  1.15  augustss #ifndef ACPI_ACTIVATE_DEV
     66  1.15  augustss #define ACPI_ACTIVATE_DEV 0
     67  1.15  augustss #endif
     68  1.15  augustss 
     69  1.13  augustss #if ACPI_PCI_FIXUP
     70  1.13  augustss #include <dev/acpi/acpica/Subsystem/acnamesp.h> /* AcpiNsGetNodeByPath() */
     71  1.13  augustss #include <dev/pci/pcidevs.h>
     72  1.13  augustss #endif
     73  1.13  augustss 
     74  1.10  tshiozak #include <machine/acpi_machdep.h>
     75  1.10  tshiozak 
     76   1.1   thorpej #ifdef ENABLE_DEBUGGER
     77   1.1   thorpej #define	ACPI_DBGR_INIT		0x01
     78   1.1   thorpej #define	ACPI_DBGR_TABLES	0x02
     79   1.1   thorpej #define	ACPI_DBGR_ENABLE	0x04
     80   1.1   thorpej #define	ACPI_DBGR_PROBE		0x08
     81   1.1   thorpej #define	ACPI_DBGR_RUNNING	0x10
     82   1.1   thorpej 
     83   1.1   thorpej int	acpi_dbgr = 0x00;
     84   1.1   thorpej #endif
     85   1.1   thorpej 
     86   1.1   thorpej int	acpi_match(struct device *, struct cfdata *, void *);
     87   1.1   thorpej void	acpi_attach(struct device *, struct device *, void *);
     88   1.1   thorpej 
     89   1.1   thorpej int	acpi_print(void *aux, const char *);
     90   1.1   thorpej 
     91   1.1   thorpej extern struct cfdriver acpi_cd;
     92   1.1   thorpej 
     93  1.17   thorpej CFATTACH_DECL(acpi, sizeof(struct acpi_softc),
     94  1.18   thorpej     acpi_match, acpi_attach, NULL, NULL);
     95   1.1   thorpej 
     96   1.1   thorpej /*
     97   1.1   thorpej  * This is a flag we set when the ACPI subsystem is active.  Machine
     98   1.1   thorpej  * dependent code may wish to skip other steps (such as attaching
     99   1.1   thorpej  * subsystems that ACPI supercedes) when ACPI is active.
    100   1.1   thorpej  */
    101   1.1   thorpej int	acpi_active;
    102   1.1   thorpej 
    103   1.1   thorpej /*
    104   1.1   thorpej  * Pointer to the ACPI subsystem's state.  There can be only
    105   1.1   thorpej  * one ACPI instance.
    106   1.1   thorpej  */
    107   1.1   thorpej struct acpi_softc *acpi_softc;
    108   1.1   thorpej 
    109   1.1   thorpej void		acpi_shutdown(void *);
    110   1.1   thorpej ACPI_STATUS	acpi_disable(struct acpi_softc *sc);
    111   1.1   thorpej void		acpi_build_tree(struct acpi_softc *);
    112   1.1   thorpej ACPI_STATUS	acpi_make_devnode(ACPI_HANDLE, UINT32, void *, void **);
    113   1.1   thorpej 
    114   1.1   thorpej void		acpi_enable_fixed_events(struct acpi_softc *);
    115  1.13  augustss #if ACPI_PCI_FIXUP
    116  1.13  augustss void		acpi_pci_fixup(struct acpi_softc *);
    117  1.15  augustss #endif
    118  1.15  augustss #if ACPI_PCI_FIXUP || ACPI_ACTIVATE_DEV
    119  1.13  augustss ACPI_STATUS	acpi_allocate_resources(ACPI_HANDLE handle);
    120  1.13  augustss #endif
    121   1.1   thorpej 
    122   1.1   thorpej /*
    123   1.1   thorpej  * acpi_probe:
    124   1.1   thorpej  *
    125   1.1   thorpej  *	Probe for ACPI support.  This is called by the
    126   1.1   thorpej  *	machine-dependent ACPI front-end.  All of the
    127   1.1   thorpej  *	actual work is done by ACPICA.
    128   1.1   thorpej  *
    129   1.1   thorpej  *	NOTE: This is not an autoconfiguration interface function.
    130   1.1   thorpej  */
    131   1.1   thorpej int
    132   1.1   thorpej acpi_probe(void)
    133   1.1   thorpej {
    134   1.1   thorpej 	static int beenhere;
    135   1.1   thorpej 	ACPI_STATUS rv;
    136   1.1   thorpej 
    137   1.1   thorpej 	if (beenhere != 0)
    138   1.1   thorpej 		panic("acpi_probe: ACPI has already been probed");
    139   1.1   thorpej 	beenhere = 1;
    140   1.1   thorpej 
    141   1.1   thorpej 	/*
    142   1.1   thorpej 	 * Start up ACPICA.
    143   1.1   thorpej 	 */
    144   1.1   thorpej #ifdef ENABLE_DEBUGGER
    145   1.1   thorpej 	if (acpi_dbgr & ACPI_DBGR_INIT)
    146   1.1   thorpej 		acpi_osd_debugger();
    147   1.1   thorpej #endif
    148   1.1   thorpej 
    149   1.1   thorpej 	rv = AcpiInitializeSubsystem();
    150   1.1   thorpej 	if (rv != AE_OK) {
    151   1.1   thorpej 		printf("ACPI: unable to initialize ACPICA: %d\n", rv);
    152   1.1   thorpej 		return (0);
    153   1.1   thorpej 	}
    154   1.1   thorpej 
    155   1.1   thorpej #ifdef ENABLE_DEBUGGER
    156   1.1   thorpej 	if (acpi_dbgr & ACPI_DBGR_TABLES)
    157   1.1   thorpej 		acpi_osd_debugger();
    158   1.1   thorpej #endif
    159   1.1   thorpej 
    160   1.1   thorpej 	rv = AcpiLoadTables();
    161   1.1   thorpej 	if (rv != AE_OK) {
    162   1.1   thorpej 		printf("ACPI: unable to load tables: %d\n", rv);
    163   1.1   thorpej 		return (0);
    164   1.1   thorpej 	}
    165   1.1   thorpej 
    166   1.1   thorpej 	/*
    167   1.1   thorpej 	 * Looks like we have ACPI!
    168   1.1   thorpej 	 */
    169   1.1   thorpej 
    170   1.1   thorpej 	return (1);
    171   1.1   thorpej }
    172   1.1   thorpej 
    173   1.1   thorpej /*
    174   1.1   thorpej  * acpi_match:
    175   1.1   thorpej  *
    176   1.1   thorpej  *	Autoconfiguration `match' routine.
    177   1.1   thorpej  */
    178   1.1   thorpej int
    179   1.1   thorpej acpi_match(struct device *parent, struct cfdata *match, void *aux)
    180   1.1   thorpej {
    181   1.1   thorpej 	struct acpibus_attach_args *aa = aux;
    182   1.1   thorpej 
    183   1.1   thorpej 	if (strcmp(aa->aa_busname, acpi_cd.cd_name) != 0)
    184   1.1   thorpej 		return (0);
    185   1.1   thorpej 
    186   1.1   thorpej 	/*
    187   1.1   thorpej 	 * XXX Check other locators?  Hard to know -- machine
    188   1.1   thorpej 	 * dependent code has already checked for the presence
    189   1.1   thorpej 	 * of ACPI by calling acpi_probe(), so I suppose we
    190   1.1   thorpej 	 * don't really have to do anything else.
    191   1.1   thorpej 	 */
    192   1.1   thorpej 	return (1);
    193   1.1   thorpej }
    194   1.1   thorpej 
    195   1.1   thorpej /*
    196   1.1   thorpej  * acpi_attach:
    197   1.1   thorpej  *
    198   1.1   thorpej  *	Autoconfiguration `attach' routine.  Finish initializing
    199   1.1   thorpej  *	ACPICA (some initialization was done in acpi_probe(),
    200   1.1   thorpej  *	which was required to check for the presence of ACPI),
    201   1.1   thorpej  *	and enable the ACPI subsystem.
    202   1.1   thorpej  */
    203   1.1   thorpej void
    204   1.1   thorpej acpi_attach(struct device *parent, struct device *self, void *aux)
    205   1.1   thorpej {
    206   1.1   thorpej 	struct acpi_softc *sc = (void *) self;
    207   1.1   thorpej 	struct acpibus_attach_args *aa = aux;
    208   1.1   thorpej 	ACPI_STATUS rv;
    209   1.1   thorpej 
    210   1.1   thorpej 	printf("\n");
    211   1.1   thorpej 
    212   1.1   thorpej 	if (acpi_softc != NULL)
    213   1.1   thorpej 		panic("acpi_attach: ACPI has already been attached");
    214   1.1   thorpej 
    215   1.1   thorpej 	sc->sc_iot = aa->aa_iot;
    216   1.1   thorpej 	sc->sc_memt = aa->aa_memt;
    217   1.1   thorpej 	sc->sc_pc = aa->aa_pc;
    218   1.1   thorpej 	sc->sc_pciflags = aa->aa_pciflags;
    219  1.19  jmcneill 	sc->sc_ic = aa->aa_ic;
    220   1.1   thorpej 
    221   1.1   thorpej 	acpi_softc = sc;
    222   1.1   thorpej 
    223   1.1   thorpej 	/*
    224   1.1   thorpej 	 * Install the default address space handlers.
    225   1.1   thorpej 	 */
    226   1.1   thorpej 
    227   1.1   thorpej 	rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT,
    228   1.1   thorpej 	    ACPI_ADR_SPACE_SYSTEM_MEMORY, ACPI_DEFAULT_HANDLER, NULL, NULL);
    229   1.1   thorpej 	if (rv != AE_OK) {
    230   1.1   thorpej 		printf("%s: unable to install SYSTEM MEMORY handler: %d\n",
    231   1.1   thorpej 		    sc->sc_dev.dv_xname, rv);
    232   1.1   thorpej 		return;
    233   1.1   thorpej 	}
    234   1.1   thorpej 
    235   1.1   thorpej 	rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT,
    236   1.1   thorpej 	    ACPI_ADR_SPACE_SYSTEM_IO, ACPI_DEFAULT_HANDLER, NULL, NULL);
    237   1.1   thorpej 	if (rv != AE_OK) {
    238   1.1   thorpej 		printf("%s: unable to install SYSTEM IO handler: %d\n",
    239   1.1   thorpej 		    sc->sc_dev.dv_xname, rv);
    240   1.1   thorpej 		return;
    241   1.1   thorpej 	}
    242   1.1   thorpej 
    243   1.1   thorpej 	rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT,
    244   1.1   thorpej 	    ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL);
    245   1.1   thorpej 	if (rv != AE_OK) {
    246   1.1   thorpej 		printf("%s: unable to install PCI CONFIG handler: %d\n",
    247   1.1   thorpej 		    sc->sc_dev.dv_xname, rv);
    248   1.1   thorpej 		return;
    249   1.1   thorpej 	}
    250   1.1   thorpej 
    251   1.1   thorpej 	/*
    252   1.1   thorpej 	 * Bring ACPI on-line.
    253   1.1   thorpej 	 *
    254   1.1   thorpej 	 * Note that we request that _STA (device init) and _INI (object init)
    255   1.1   thorpej 	 * methods not be run.
    256   1.1   thorpej 	 *
    257   1.1   thorpej 	 * XXX We need to arrange for the object init pass after we have
    258   1.1   thorpej 	 * XXX attached all of our children.
    259   1.1   thorpej 	 */
    260   1.1   thorpej #ifdef ENABLE_DEBUGGER
    261   1.1   thorpej 	if (acpi_dbgr & ACPI_DBGR_ENABLE)
    262   1.1   thorpej 		acpi_osd_debugger();
    263   1.1   thorpej #endif
    264   1.1   thorpej 	rv = AcpiEnableSubsystem(ACPI_NO_DEVICE_INIT | ACPI_NO_OBJECT_INIT);
    265   1.1   thorpej 	if (rv != AE_OK) {
    266   1.1   thorpej 		printf("%s: unable to enable ACPI: %d\n",
    267   1.1   thorpej 		    sc->sc_dev.dv_xname, rv);
    268   1.1   thorpej 		return;
    269   1.1   thorpej 	}
    270   1.1   thorpej 	acpi_active = 1;
    271   1.1   thorpej 
    272   1.1   thorpej 	/*
    273   1.1   thorpej 	 * Set up the default sleep state to enter when various
    274   1.1   thorpej 	 * switches are activated.
    275   1.1   thorpej 	 */
    276   1.1   thorpej 	sc->sc_switch_sleep[ACPI_SWITCH_POWERBUTTON] = ACPI_STATE_S5;
    277   1.1   thorpej 	sc->sc_switch_sleep[ACPI_SWITCH_SLEEPBUTTON] = ACPI_STATE_S1;
    278   1.1   thorpej 	sc->sc_switch_sleep[ACPI_SWITCH_LID]	     = ACPI_STATE_S1;
    279   1.1   thorpej 
    280   1.1   thorpej 	/* Our current state is "awake". */
    281   1.1   thorpej 	sc->sc_sleepstate = ACPI_STATE_S0;
    282   1.1   thorpej 
    283   1.9   kanaoka 	/* Show SCI interrupt. */
    284   1.9   kanaoka 	if (AcpiGbl_FADT != NULL)
    285   1.9   kanaoka 		printf("%s: SCI interrupting at irq %d\n",
    286   1.9   kanaoka 			sc->sc_dev.dv_xname, AcpiGbl_FADT->SciInt);
    287   1.1   thorpej 	/*
    288   1.1   thorpej 	 * Check for fixed-hardware features.
    289   1.1   thorpej 	 */
    290   1.1   thorpej 	acpi_enable_fixed_events(sc);
    291   1.1   thorpej 
    292   1.1   thorpej 	/*
    293  1.13  augustss 	 * Fix up PCI devices.
    294  1.13  augustss 	 */
    295  1.13  augustss #if ACPI_PCI_FIXUP
    296  1.13  augustss 	acpi_pci_fixup(sc);
    297  1.13  augustss #endif
    298  1.13  augustss 
    299  1.13  augustss 	/*
    300   1.1   thorpej 	 * Scan the namespace and build our device tree.
    301   1.1   thorpej 	 */
    302   1.1   thorpej #ifdef ENABLE_DEBUGGER
    303   1.1   thorpej 	if (acpi_dbgr & ACPI_DBGR_PROBE)
    304   1.1   thorpej 		acpi_osd_debugger();
    305   1.1   thorpej #endif
    306  1.28      fvdl 	acpi_md_callback((struct device *)sc);
    307   1.1   thorpej 	acpi_build_tree(sc);
    308   1.1   thorpej 
    309   1.1   thorpej 	/*
    310   1.1   thorpej 	 * Register a shutdown hook that disables certain ACPI
    311   1.1   thorpej 	 * events that might happen and confuse us while we're
    312   1.1   thorpej 	 * trying to shut down.
    313   1.1   thorpej 	 */
    314   1.1   thorpej 	sc->sc_sdhook = shutdownhook_establish(acpi_shutdown, sc);
    315   1.1   thorpej 	if (sc->sc_sdhook == NULL)
    316   1.1   thorpej 		printf("%s: WARNING: unable to register shutdown hook\n",
    317   1.1   thorpej 		    sc->sc_dev.dv_xname);
    318   1.1   thorpej 
    319   1.1   thorpej #ifdef ENABLE_DEBUGGER
    320   1.1   thorpej 	if (acpi_dbgr & ACPI_DBGR_RUNNING)
    321   1.1   thorpej 		acpi_osd_debugger();
    322   1.1   thorpej #endif
    323   1.1   thorpej }
    324   1.1   thorpej 
    325   1.1   thorpej /*
    326   1.1   thorpej  * acpi_shutdown:
    327   1.1   thorpej  *
    328   1.1   thorpej  *	Shutdown hook for ACPI -- disable some events that
    329   1.1   thorpej  *	might confuse us.
    330   1.1   thorpej  */
    331   1.1   thorpej void
    332   1.1   thorpej acpi_shutdown(void *arg)
    333   1.1   thorpej {
    334   1.1   thorpej 	struct acpi_softc *sc = arg;
    335   1.1   thorpej 
    336   1.1   thorpej 	if (acpi_disable(sc) != AE_OK)
    337   1.1   thorpej 		printf("%s: WARNING: unable to disable ACPI\n",
    338   1.1   thorpej 		    sc->sc_dev.dv_xname);
    339   1.1   thorpej }
    340   1.1   thorpej 
    341   1.1   thorpej /*
    342   1.1   thorpej  * acpi_disable:
    343   1.1   thorpej  *
    344   1.1   thorpej  *	Disable ACPI.
    345   1.1   thorpej  */
    346   1.1   thorpej ACPI_STATUS
    347   1.1   thorpej acpi_disable(struct acpi_softc *sc)
    348   1.1   thorpej {
    349   1.1   thorpej 	ACPI_STATUS rv = AE_OK;
    350   1.1   thorpej 
    351   1.1   thorpej 	if (acpi_active) {
    352   1.1   thorpej 		rv = AcpiDisable();
    353   1.1   thorpej 		if (rv == AE_OK)
    354   1.1   thorpej 			acpi_active = 0;
    355   1.1   thorpej 	}
    356   1.1   thorpej 	return (rv);
    357   1.1   thorpej }
    358   1.1   thorpej 
    359   1.1   thorpej struct acpi_make_devnode_state {
    360   1.1   thorpej 	struct acpi_softc *softc;
    361   1.1   thorpej 	struct acpi_scope *scope;
    362   1.1   thorpej };
    363   1.1   thorpej 
    364   1.1   thorpej /*
    365   1.1   thorpej  * acpi_build_tree:
    366   1.1   thorpej  *
    367   1.1   thorpej  *	Scan relevant portions of the ACPI namespace and attach
    368   1.1   thorpej  *	child devices.
    369   1.1   thorpej  */
    370   1.1   thorpej void
    371   1.1   thorpej acpi_build_tree(struct acpi_softc *sc)
    372   1.1   thorpej {
    373   1.1   thorpej 	static const char *scopes[] = {
    374   1.1   thorpej 		"\\_PR_",	/* ACPI 1.0 processor namespace */
    375   1.1   thorpej 		"\\_SB_",	/* system bus namespace */
    376   1.1   thorpej 		"\\_SI_",	/* system idicator namespace */
    377   1.1   thorpej 		"\\_TZ_",	/* ACPI 1.0 thermal zone namespace */
    378   1.1   thorpej 		NULL,
    379   1.1   thorpej 	};
    380   1.1   thorpej 	struct acpi_attach_args aa;
    381   1.1   thorpej 	struct acpi_make_devnode_state state;
    382   1.1   thorpej 	struct acpi_scope *as;
    383   1.1   thorpej 	struct acpi_devnode *ad;
    384   1.1   thorpej 	ACPI_HANDLE parent;
    385   1.1   thorpej 	int i;
    386   1.1   thorpej 
    387   1.1   thorpej 	TAILQ_INIT(&sc->sc_scopes);
    388   1.1   thorpej 
    389   1.1   thorpej 	state.softc = sc;
    390   1.1   thorpej 
    391   1.1   thorpej 	/*
    392   1.1   thorpej 	 * Scan the namespace and build our tree.
    393   1.1   thorpej 	 */
    394   1.1   thorpej 	for (i = 0; scopes[i] != NULL; i++) {
    395   1.1   thorpej 		as = malloc(sizeof(*as), M_DEVBUF, M_WAITOK);
    396   1.1   thorpej 		as->as_name = scopes[i];
    397   1.1   thorpej 		TAILQ_INIT(&as->as_devnodes);
    398   1.1   thorpej 
    399   1.1   thorpej 		TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list);
    400   1.1   thorpej 
    401   1.1   thorpej 		state.scope = as;
    402   1.1   thorpej 
    403   1.1   thorpej 		if (AcpiGetHandle(ACPI_ROOT_OBJECT, (char *) scopes[i],
    404   1.1   thorpej 		    &parent) == AE_OK) {
    405   1.1   thorpej 			AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100,
    406   1.1   thorpej 			    acpi_make_devnode, &state, NULL);
    407   1.1   thorpej 		}
    408   1.1   thorpej 
    409   1.1   thorpej 		/* Now, for this namespace, try and attach the devices. */
    410   1.1   thorpej 		TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) {
    411   1.1   thorpej 			aa.aa_node = ad;
    412   1.1   thorpej 			aa.aa_iot = sc->sc_iot;
    413   1.1   thorpej 			aa.aa_memt = sc->sc_memt;
    414   1.1   thorpej 			aa.aa_pc = sc->sc_pc;
    415   1.1   thorpej 			aa.aa_pciflags = sc->sc_pciflags;
    416  1.19  jmcneill 			aa.aa_ic = sc->sc_ic;
    417   1.1   thorpej 
    418  1.25  jmcneill 			if (ad->ad_devinfo.Type == ACPI_TYPE_DEVICE) {
    419  1.25  jmcneill 				/*
    420  1.25  jmcneill 				 * XXX We only attach devices which are:
    421  1.25  jmcneill 				 *
    422  1.25  jmcneill 				 *	- present
    423  1.25  jmcneill 				 *	- enabled
    424  1.25  jmcneill 				 *	- functioning properly
    425  1.25  jmcneill 				 *
    426  1.25  jmcneill 				 * However, if enabled, it's decoding resources,
    427  1.25  jmcneill 				 * so we should claim them, if possible.
    428  1.25  jmcneill 				 * Requires changes to bus_space(9).
    429  1.25  jmcneill 				 */
    430  1.25  jmcneill 				if ((ad->ad_devinfo.CurrentStatus &
    431  1.25  jmcneill 				     (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED|
    432  1.25  jmcneill 				      ACPI_STA_DEV_OK)) !=
    433  1.25  jmcneill 				    (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED|
    434  1.25  jmcneill 				     ACPI_STA_DEV_OK))
    435  1.25  jmcneill 					continue;
    436  1.25  jmcneill 
    437  1.25  jmcneill 				/*
    438  1.25  jmcneill 				 * XXX Same problem as above...
    439  1.25  jmcneill 				 */
    440  1.25  jmcneill 				if ((ad->ad_devinfo.Valid & ACPI_VALID_HID)
    441  1.25  jmcneill 				    == 0)
    442  1.25  jmcneill 					continue;
    443  1.25  jmcneill 			}
    444   1.1   thorpej 
    445   1.1   thorpej 			ad->ad_device = config_found(&sc->sc_dev,
    446   1.1   thorpej 			    &aa, acpi_print);
    447   1.1   thorpej 		}
    448   1.1   thorpej 	}
    449   1.1   thorpej }
    450   1.1   thorpej 
    451  1.15  augustss #if ACPI_ACTIVATE_DEV
    452  1.15  augustss static void
    453  1.15  augustss acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO *di)
    454  1.15  augustss {
    455  1.15  augustss 	ACPI_STATUS rv;
    456  1.15  augustss 
    457  1.15  augustss #ifdef ACPI_DEBUG
    458  1.15  augustss 	printf("acpi_activate_device: %s, old status=%x\n",
    459  1.15  augustss 	       di->HardwareId, di->CurrentStatus);
    460  1.15  augustss #endif
    461  1.15  augustss 
    462  1.15  augustss 	rv = acpi_allocate_resources(handle);
    463  1.15  augustss 	if (ACPI_FAILURE(rv)) {
    464  1.15  augustss 		printf("acpi: activate failed for %s\n", di->HardwareId);
    465  1.23  augustss 	} else {
    466  1.23  augustss 		printf("acpi: activated %s\n", di->HardwareId);
    467  1.15  augustss 	}
    468  1.15  augustss 
    469  1.15  augustss 	(void)AcpiGetObjectInfo(handle, di);
    470  1.15  augustss #ifdef ACPI_DEBUG
    471  1.15  augustss 	printf("acpi_activate_device: %s, new status=%x\n",
    472  1.15  augustss 	       di->HardwareId, di->CurrentStatus);
    473  1.15  augustss #endif
    474  1.15  augustss }
    475  1.15  augustss #endif /* ACPI_ACTIVATE_DEV */
    476  1.15  augustss 
    477   1.1   thorpej /*
    478   1.1   thorpej  * acpi_make_devnode:
    479   1.1   thorpej  *
    480   1.1   thorpej  *	Make an ACPI devnode.
    481   1.1   thorpej  */
    482   1.1   thorpej ACPI_STATUS
    483   1.1   thorpej acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context,
    484   1.1   thorpej     void **status)
    485   1.1   thorpej {
    486   1.1   thorpej 	struct acpi_make_devnode_state *state = context;
    487  1.20  jmcneill #if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG)
    488   1.1   thorpej 	struct acpi_softc *sc = state->softc;
    489   1.4   thorpej #endif
    490   1.1   thorpej 	struct acpi_scope *as = state->scope;
    491   1.1   thorpej 	struct acpi_devnode *ad;
    492  1.15  augustss 	ACPI_DEVICE_INFO devinfo;
    493   1.1   thorpej 	ACPI_OBJECT_TYPE type;
    494   1.1   thorpej 	ACPI_STATUS rv;
    495   1.1   thorpej 
    496   1.1   thorpej 	if (AcpiGetType(handle, &type) == AE_OK) {
    497  1.15  augustss 		rv = AcpiGetObjectInfo(handle, &devinfo);
    498  1.15  augustss 		if (rv != AE_OK) {
    499  1.15  augustss #ifdef ACPI_DEBUG
    500  1.15  augustss 			printf("%s: AcpiGetObjectInfo failed\n",
    501  1.15  augustss 			    sc->sc_dev.dv_xname);
    502  1.15  augustss #endif
    503  1.15  augustss 			goto out; /* XXX why return OK */
    504  1.15  augustss 		}
    505  1.15  augustss 
    506   1.1   thorpej 		switch (type) {
    507   1.1   thorpej 		case ACPI_TYPE_DEVICE:
    508  1.15  augustss #if ACPI_ACTIVATE_DEV
    509  1.15  augustss 			if ((devinfo.Valid & ACPI_VALID_STA) &&
    510  1.15  augustss 			    (devinfo.CurrentStatus &
    511  1.15  augustss 			     (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) ==
    512  1.15  augustss 			    ACPI_STA_DEV_PRESENT)
    513  1.15  augustss 				acpi_activate_device(handle, &devinfo);
    514  1.15  augustss 			/* FALLTHROUGH */
    515  1.15  augustss #endif
    516  1.15  augustss 
    517   1.1   thorpej 		case ACPI_TYPE_PROCESSOR:
    518   1.1   thorpej 		case ACPI_TYPE_THERMAL:
    519   1.1   thorpej 		case ACPI_TYPE_POWER:
    520   1.6   tsutsui 			ad = malloc(sizeof(*ad), M_DEVBUF, M_NOWAIT|M_ZERO);
    521   1.1   thorpej 			if (ad == NULL)
    522   1.1   thorpej 				return (AE_NO_MEMORY);
    523   1.1   thorpej 
    524   1.1   thorpej 			ad->ad_handle = handle;
    525   1.1   thorpej 			ad->ad_level = level;
    526   1.1   thorpej 			ad->ad_scope = as;
    527   1.1   thorpej 			ad->ad_type = type;
    528   1.1   thorpej 
    529   1.1   thorpej 			TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list);
    530   1.1   thorpej 
    531   1.1   thorpej 			rv = AcpiGetObjectInfo(handle, &ad->ad_devinfo);
    532   1.1   thorpej 			if (rv != AE_OK)
    533   1.1   thorpej 				goto out;
    534   1.1   thorpej 
    535   1.1   thorpej 			if ((ad->ad_devinfo.Valid & ACPI_VALID_HID) == 0)
    536   1.1   thorpej 				goto out;
    537   1.1   thorpej 
    538  1.14  augustss #ifdef ACPI_EXTRA_DEBUG
    539   1.1   thorpej 			printf("%s: HID %s found in scope %s level %d\n",
    540   1.1   thorpej 			    sc->sc_dev.dv_xname, ad->ad_devinfo.HardwareId,
    541   1.1   thorpej 			    as->as_name, ad->ad_level);
    542   1.1   thorpej 			if (ad->ad_devinfo.Valid & ACPI_VALID_UID)
    543   1.1   thorpej 				printf("       UID %s\n",
    544   1.1   thorpej 				    ad->ad_devinfo.UniqueId);
    545   1.1   thorpej 			if (ad->ad_devinfo.Valid & ACPI_VALID_ADR)
    546   1.1   thorpej 				printf("       ADR 0x%016qx\n",
    547   1.1   thorpej 				    ad->ad_devinfo.Address);
    548   1.1   thorpej 			if (ad->ad_devinfo.Valid & ACPI_VALID_STA)
    549   1.1   thorpej 				printf("       STA 0x%08x\n",
    550   1.1   thorpej 				    ad->ad_devinfo.CurrentStatus);
    551   1.1   thorpej #endif
    552   1.1   thorpej 		}
    553   1.1   thorpej 	}
    554   1.1   thorpej  out:
    555   1.1   thorpej 	return (AE_OK);
    556   1.1   thorpej }
    557   1.1   thorpej 
    558   1.1   thorpej /*
    559   1.1   thorpej  * acpi_print:
    560   1.1   thorpej  *
    561   1.1   thorpej  *	Autoconfiguration print routine.
    562   1.1   thorpej  */
    563   1.1   thorpej int
    564   1.1   thorpej acpi_print(void *aux, const char *pnp)
    565   1.1   thorpej {
    566   1.1   thorpej 	struct acpi_attach_args *aa = aux;
    567   1.1   thorpej 
    568   1.4   thorpej 	if (pnp) {
    569  1.27  christos 		if (aa->aa_node->ad_devinfo.Valid & ACPI_VALID_HID) {
    570  1.27  christos 			char *pnpstr = aa->aa_node->ad_devinfo.HardwareId;
    571  1.27  christos 			char *str;
    572  1.27  christos 
    573  1.27  christos 			aprint_normal("%s ", pnpstr);
    574  1.27  christos 			if (acpi_eval_string(aa->aa_node->ad_handle,
    575  1.27  christos 			    "_STR", &str) == AE_OK) {
    576  1.27  christos 				aprint_normal("[%s] ", str);
    577  1.27  christos 				AcpiOsFree(str);
    578  1.27  christos 			}
    579  1.27  christos #ifdef ACPIVERBOSE
    580  1.27  christos 			else {
    581  1.27  christos 				int i;
    582  1.27  christos 
    583  1.27  christos 				for (i = 0; i < sizeof(acpi_knowndevs) /
    584  1.27  christos 				    sizeof(acpi_knowndevs[0]); i++) {
    585  1.27  christos 					if (strcmp(acpi_knowndevs[i].pnp,
    586  1.27  christos 					    pnpstr) == 0) {
    587  1.27  christos 						printf("[%s] ",
    588  1.27  christos 						    acpi_knowndevs[i].str);
    589  1.27  christos 					}
    590  1.27  christos 				}
    591  1.27  christos 			}
    592  1.27  christos 
    593  1.27  christos #endif
    594  1.27  christos 		} else {
    595  1.27  christos 			/* XXX print something more meaningful.. */
    596  1.26  jmcneill 			aprint_normal("ACPI Object Type 0x%02x ",
    597  1.26  jmcneill 			   aa->aa_node->ad_devinfo.Type);
    598   1.4   thorpej 		}
    599  1.24   thorpej 		aprint_normal("at %s", pnp);
    600  1.21      matt 	} else {
    601  1.24   thorpej 		aprint_normal(" (%s", aa->aa_node->ad_devinfo.HardwareId);
    602  1.22  jmcneill 		if (aa->aa_node->ad_devinfo.Valid & ACPI_VALID_UID) {
    603  1.27  christos 			char *uid;
    604  1.27  christos 
    605  1.22  jmcneill 			if (aa->aa_node->ad_devinfo.UniqueId[0] == '\0')
    606  1.22  jmcneill 				uid = "<null>";
    607  1.22  jmcneill 			else
    608  1.22  jmcneill 				uid = aa->aa_node->ad_devinfo.UniqueId;
    609  1.24   thorpej 			aprint_normal("-%s", uid);
    610  1.22  jmcneill 		}
    611  1.24   thorpej 		aprint_normal(")");
    612   1.4   thorpej 	}
    613   1.1   thorpej 
    614   1.1   thorpej 	return (UNCONF);
    615   1.1   thorpej }
    616   1.1   thorpej 
    617   1.1   thorpej /*****************************************************************************
    618   1.1   thorpej  * ACPI fixed-hardware feature handlers
    619   1.1   thorpej  *****************************************************************************/
    620   1.1   thorpej 
    621   1.1   thorpej UINT32		acpi_fixed_power_button_handler(void *);
    622   1.1   thorpej UINT32		acpi_fixed_sleep_button_handler(void *);
    623   1.1   thorpej 
    624   1.1   thorpej /*
    625   1.1   thorpej  * acpi_enable_fixed_events:
    626   1.1   thorpej  *
    627   1.1   thorpej  *	Enable any fixed-hardware feature handlers.
    628   1.1   thorpej  */
    629   1.1   thorpej void
    630   1.1   thorpej acpi_enable_fixed_events(struct acpi_softc *sc)
    631   1.1   thorpej {
    632   1.1   thorpej 	static int beenhere;
    633   1.1   thorpej 	ACPI_STATUS rv;
    634   1.1   thorpej 
    635   1.1   thorpej 	/*
    636   1.1   thorpej 	 * Check for fixed-hardware buttons.
    637   1.1   thorpej 	 */
    638   1.1   thorpej 
    639   1.1   thorpej 	if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->PwrButton == 0) {
    640   1.1   thorpej 		if (beenhere == 0)
    641   1.1   thorpej 			printf("%s: fixed-feature power button present\n",
    642   1.1   thorpej 			    sc->sc_dev.dv_xname);
    643   1.1   thorpej 		rv = AcpiInstallFixedEventHandler(ACPI_EVENT_POWER_BUTTON,
    644   1.1   thorpej 		    acpi_fixed_power_button_handler, sc);
    645   1.1   thorpej 		if (rv != AE_OK)
    646   1.1   thorpej 			printf("%s: unable to install handler for fixed "
    647   1.1   thorpej 			    "power button: %d\n", sc->sc_dev.dv_xname, rv);
    648   1.1   thorpej 	}
    649   1.1   thorpej 
    650   1.1   thorpej 	if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->SleepButton == 0) {
    651   1.1   thorpej 		if (beenhere == 0)
    652   1.1   thorpej 			printf("%s: fixed-feature sleep button present\n",
    653   1.1   thorpej 			    sc->sc_dev.dv_xname);
    654   1.1   thorpej 		rv = AcpiInstallFixedEventHandler(ACPI_EVENT_SLEEP_BUTTON,
    655   1.1   thorpej 		    acpi_fixed_sleep_button_handler, sc);
    656   1.1   thorpej 		if (rv != AE_OK)
    657   1.1   thorpej 			printf("%s: unable to install handler for fixed "
    658   1.1   thorpej 			    "power button: %d\n", sc->sc_dev.dv_xname, rv);
    659   1.1   thorpej 	}
    660   1.1   thorpej 
    661   1.1   thorpej 	beenhere = 1;
    662   1.1   thorpej }
    663   1.1   thorpej 
    664   1.1   thorpej /*
    665   1.1   thorpej  * acpi_fixed_power_button_handler:
    666   1.1   thorpej  *
    667   1.1   thorpej  *	Fixed event handler for the power button.
    668   1.1   thorpej  */
    669   1.1   thorpej UINT32
    670   1.1   thorpej acpi_fixed_power_button_handler(void *context)
    671   1.1   thorpej {
    672   1.1   thorpej 	struct acpi_softc *sc = context;
    673   1.1   thorpej 
    674   1.1   thorpej 	/* XXX XXX XXX */
    675   1.1   thorpej 
    676   1.1   thorpej 	printf("%s: fixed power button pressed\n", sc->sc_dev.dv_xname);
    677   1.1   thorpej 
    678   1.8   thorpej 	return (ACPI_INTERRUPT_HANDLED);
    679   1.1   thorpej }
    680   1.1   thorpej 
    681   1.1   thorpej /*
    682   1.1   thorpej  * acpi_fixed_sleep_button_handler:
    683   1.1   thorpej  *
    684   1.1   thorpej  *	Fixed event handler for the sleep button.
    685   1.1   thorpej  */
    686   1.1   thorpej UINT32
    687   1.1   thorpej acpi_fixed_sleep_button_handler(void *context)
    688   1.1   thorpej {
    689   1.1   thorpej 	struct acpi_softc *sc = context;
    690   1.1   thorpej 
    691   1.1   thorpej 	/* XXX XXX XXX */
    692   1.1   thorpej 
    693   1.1   thorpej 	printf("%s: fixed sleep button pressed\n", sc->sc_dev.dv_xname);
    694   1.1   thorpej 
    695   1.8   thorpej 	return (ACPI_INTERRUPT_HANDLED);
    696   1.1   thorpej }
    697   1.1   thorpej 
    698   1.1   thorpej /*****************************************************************************
    699   1.1   thorpej  * ACPI utility routines.
    700   1.1   thorpej  *****************************************************************************/
    701   1.1   thorpej 
    702   1.2   thorpej /*
    703   1.2   thorpej  * acpi_eval_integer:
    704   1.2   thorpej  *
    705   1.2   thorpej  *	Evaluate an integer object.
    706   1.2   thorpej  */
    707   1.1   thorpej ACPI_STATUS
    708   1.1   thorpej acpi_eval_integer(ACPI_HANDLE handle, char *path, int *valp)
    709   1.1   thorpej {
    710   1.1   thorpej 	ACPI_STATUS rv;
    711   1.1   thorpej 	ACPI_BUFFER buf;
    712   1.1   thorpej 	ACPI_OBJECT param;
    713   1.1   thorpej 
    714   1.1   thorpej 	if (handle == NULL)
    715   1.1   thorpej 		handle = ACPI_ROOT_OBJECT;
    716   1.1   thorpej 
    717   1.1   thorpej 	buf.Pointer = &param;
    718   1.1   thorpej 	buf.Length = sizeof(param);
    719   1.1   thorpej 
    720   1.1   thorpej 	rv = AcpiEvaluateObject(handle, path, NULL, &buf);
    721   1.1   thorpej 	if (rv == AE_OK) {
    722   1.1   thorpej 		if (param.Type == ACPI_TYPE_INTEGER)
    723   1.1   thorpej 			*valp = param.Integer.Value;
    724   1.1   thorpej 		else
    725   1.1   thorpej 			rv = AE_TYPE;
    726   1.1   thorpej 	}
    727   1.1   thorpej 
    728   1.4   thorpej 	return (rv);
    729   1.4   thorpej }
    730   1.4   thorpej 
    731   1.4   thorpej /*
    732   1.4   thorpej  * acpi_eval_string:
    733   1.4   thorpej  *
    734   1.7  sommerfe  *	Evaluate a (Unicode) string object.
    735   1.4   thorpej  */
    736   1.4   thorpej ACPI_STATUS
    737   1.4   thorpej acpi_eval_string(ACPI_HANDLE handle, char *path, char **stringp)
    738   1.4   thorpej {
    739   1.4   thorpej 	ACPI_STATUS rv;
    740   1.4   thorpej 	ACPI_BUFFER buf;
    741   1.7  sommerfe 	ACPI_OBJECT *param;
    742   1.4   thorpej 
    743   1.4   thorpej 	if (handle == NULL)
    744   1.4   thorpej 		handle = ACPI_ROOT_OBJECT;
    745   1.4   thorpej 
    746   1.4   thorpej 	buf.Pointer = NULL;
    747   1.4   thorpej 	buf.Length = 0;
    748   1.4   thorpej 
    749   1.4   thorpej 	rv = AcpiEvaluateObject(handle, path, NULL, &buf);
    750   1.4   thorpej 	if (rv != AE_BUFFER_OVERFLOW)
    751   1.4   thorpej 		return (rv);
    752   1.4   thorpej 
    753   1.4   thorpej 	buf.Pointer = AcpiOsAllocate(buf.Length);
    754   1.4   thorpej 	if (buf.Pointer == NULL)
    755   1.4   thorpej 		return (AE_NO_MEMORY);
    756   1.4   thorpej 
    757   1.4   thorpej 	rv = AcpiEvaluateObject(handle, path, NULL, &buf);
    758   1.7  sommerfe 	param = (ACPI_OBJECT *)buf.Pointer;
    759   1.4   thorpej 	if (rv == AE_OK) {
    760   1.7  sommerfe 		if (param->Type == ACPI_TYPE_STRING) {
    761  1.27  christos 			char *ptr = param->String.Pointer;
    762  1.27  christos 			size_t len;
    763  1.27  christos 			while (*ptr++)
    764  1.27  christos 				continue;
    765  1.27  christos 			len = ptr - param->String.Pointer;
    766  1.27  christos 			if ((*stringp = AcpiOsAllocate(len)) == NULL) {
    767  1.27  christos 				rv = AE_NO_MEMORY;
    768  1.27  christos 				goto done;
    769  1.27  christos 			}
    770  1.27  christos 			(void)memcpy(*stringp, param->String.Pointer, len);
    771  1.27  christos 			goto done;
    772   1.4   thorpej 		}
    773   1.4   thorpej 		rv = AE_TYPE;
    774   1.4   thorpej 	}
    775  1.27  christos done:
    776   1.4   thorpej 	AcpiOsFree(buf.Pointer);
    777   1.7  sommerfe 	return (rv);
    778   1.7  sommerfe }
    779   1.7  sommerfe 
    780   1.7  sommerfe 
    781   1.7  sommerfe /*
    782   1.7  sommerfe  * acpi_eval_struct:
    783   1.7  sommerfe  *
    784   1.7  sommerfe  *	Evaluate a more complex structure.  Caller must free buf.Pointer.
    785   1.7  sommerfe  */
    786   1.7  sommerfe ACPI_STATUS
    787   1.7  sommerfe acpi_eval_struct(ACPI_HANDLE handle, char *path, ACPI_BUFFER *bufp)
    788   1.7  sommerfe {
    789   1.7  sommerfe 	ACPI_STATUS rv;
    790   1.7  sommerfe 
    791   1.7  sommerfe 	if (handle == NULL)
    792   1.7  sommerfe 		handle = ACPI_ROOT_OBJECT;
    793   1.7  sommerfe 
    794   1.7  sommerfe 	bufp->Pointer = NULL;
    795   1.7  sommerfe 	bufp->Length = 0;
    796   1.7  sommerfe 
    797   1.7  sommerfe 	rv = AcpiEvaluateObject(handle, path, NULL, bufp);
    798   1.7  sommerfe 	if (rv != AE_BUFFER_OVERFLOW)
    799   1.7  sommerfe 		return (rv);
    800   1.7  sommerfe 
    801   1.7  sommerfe 	bufp->Pointer = AcpiOsAllocate(bufp->Length);
    802   1.7  sommerfe 	if (bufp->Pointer == NULL)
    803   1.7  sommerfe 		return (AE_NO_MEMORY);
    804   1.7  sommerfe 
    805   1.7  sommerfe 	rv = AcpiEvaluateObject(handle, path, NULL, bufp);
    806   1.7  sommerfe 
    807   1.1   thorpej 	return (rv);
    808   1.2   thorpej }
    809   1.2   thorpej 
    810   1.2   thorpej /*
    811   1.2   thorpej  * acpi_get:
    812   1.2   thorpej  *
    813   1.2   thorpej  *	Fetch data info the specified (empty) ACPI buffer.
    814   1.2   thorpej  */
    815   1.2   thorpej ACPI_STATUS
    816   1.2   thorpej acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf,
    817   1.2   thorpej     ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *))
    818   1.2   thorpej {
    819   1.2   thorpej 	ACPI_STATUS rv;
    820   1.2   thorpej 
    821   1.2   thorpej 	buf->Pointer = NULL;
    822   1.2   thorpej 	buf->Length = 0;
    823   1.2   thorpej 
    824   1.2   thorpej 	rv = (*getit)(handle, buf);
    825   1.2   thorpej 	if (rv != AE_BUFFER_OVERFLOW)
    826   1.2   thorpej 		return (rv);
    827   1.2   thorpej 
    828   1.8   thorpej 	buf->Pointer = AcpiOsAllocate(buf->Length);
    829   1.2   thorpej 	if (buf->Pointer == NULL)
    830   1.2   thorpej 		return (AE_NO_MEMORY);
    831   1.8   thorpej 	memset(buf->Pointer, 0, buf->Length);
    832   1.2   thorpej 
    833   1.2   thorpej 	return ((*getit)(handle, buf));
    834  1.10  tshiozak }
    835  1.10  tshiozak 
    836  1.10  tshiozak 
    837  1.10  tshiozak /*****************************************************************************
    838  1.10  tshiozak  * ACPI sleep support.
    839  1.10  tshiozak  *****************************************************************************/
    840  1.10  tshiozak 
    841  1.10  tshiozak static int
    842  1.10  tshiozak is_available_state(struct acpi_softc *sc, int state)
    843  1.10  tshiozak {
    844  1.10  tshiozak 	UINT8 type_a, type_b;
    845  1.10  tshiozak 
    846  1.10  tshiozak 	return (ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state,
    847  1.10  tshiozak 						  &type_a, &type_b)));
    848  1.10  tshiozak }
    849  1.10  tshiozak 
    850  1.10  tshiozak /*
    851  1.10  tshiozak  * acpi_enter_sleep_state:
    852  1.10  tshiozak  *
    853  1.10  tshiozak  *	enter to the specified sleep state.
    854  1.10  tshiozak  */
    855  1.10  tshiozak 
    856  1.10  tshiozak ACPI_STATUS
    857  1.10  tshiozak acpi_enter_sleep_state(struct acpi_softc *sc, int state)
    858  1.10  tshiozak {
    859  1.10  tshiozak 	int s;
    860  1.10  tshiozak 	ACPI_STATUS ret = AE_OK;
    861  1.10  tshiozak 
    862  1.10  tshiozak 	switch (state) {
    863  1.10  tshiozak 	case ACPI_STATE_S0:
    864  1.10  tshiozak 		break;
    865  1.10  tshiozak 	case ACPI_STATE_S1:
    866  1.10  tshiozak 	case ACPI_STATE_S2:
    867  1.10  tshiozak 	case ACPI_STATE_S3:
    868  1.10  tshiozak 	case ACPI_STATE_S4:
    869  1.10  tshiozak 		if (!is_available_state(sc, state)) {
    870  1.10  tshiozak 			printf("acpi: cannot enter the sleep state (%d).\n",
    871  1.10  tshiozak 			       state);
    872  1.10  tshiozak 			break;
    873  1.10  tshiozak 		}
    874  1.10  tshiozak 		ret = AcpiEnterSleepStatePrep(state);
    875  1.10  tshiozak 		if (ACPI_FAILURE(ret)) {
    876  1.10  tshiozak 			printf("acpi: failed preparing to sleep (%s)\n",
    877  1.10  tshiozak 			       AcpiFormatException(ret));
    878  1.10  tshiozak 			break;
    879  1.10  tshiozak 		}
    880  1.10  tshiozak 		if (state==ACPI_STATE_S1) {
    881  1.10  tshiozak 			/* just enter the state */
    882  1.12   kanaoka 			acpi_md_OsDisableInterrupt();
    883  1.10  tshiozak 			AcpiEnterSleepState((UINT8)state);
    884  1.10  tshiozak 			AcpiUtReleaseMutex(ACPI_MTX_HARDWARE);
    885  1.10  tshiozak 		} else {
    886  1.10  tshiozak 			/* XXX: powerhooks(9) framework is too poor to
    887  1.10  tshiozak 			 * support ACPI sleep state...
    888  1.10  tshiozak 			 */
    889  1.10  tshiozak 			dopowerhooks(PWR_SOFTSUSPEND);
    890  1.10  tshiozak 			s = splhigh();
    891  1.10  tshiozak 			dopowerhooks(PWR_SUSPEND);
    892  1.10  tshiozak 			acpi_md_sleep(state);
    893  1.10  tshiozak 			dopowerhooks(PWR_RESUME);
    894  1.10  tshiozak 			splx(s);
    895  1.10  tshiozak 			dopowerhooks(PWR_SOFTRESUME);
    896  1.10  tshiozak 			if (state==ACPI_STATE_S4)
    897  1.10  tshiozak 				AcpiEnable();
    898  1.10  tshiozak 		}
    899  1.10  tshiozak 		AcpiLeaveSleepState((UINT8)state);
    900  1.10  tshiozak 		break;
    901  1.10  tshiozak 	case ACPI_STATE_S5:
    902  1.10  tshiozak 		AcpiEnterSleepStatePrep(ACPI_STATE_S5);
    903  1.12   kanaoka 		acpi_md_OsDisableInterrupt();
    904  1.10  tshiozak 		AcpiEnterSleepState(ACPI_STATE_S5);
    905  1.10  tshiozak 		printf("WARNING: powerdown failed!\n");
    906  1.10  tshiozak 		break;
    907  1.10  tshiozak 	}
    908  1.10  tshiozak 
    909  1.11  drochner 	return (ret);
    910   1.1   thorpej }
    911  1.13  augustss 
    912  1.13  augustss #if ACPI_PCI_FIXUP
    913  1.13  augustss ACPI_STATUS acpi_pci_fixup_bus(ACPI_HANDLE, UINT32, void *, void **);
    914  1.13  augustss /*
    915  1.13  augustss  * acpi_pci_fixup:
    916  1.13  augustss  *
    917  1.13  augustss  *	Set up PCI devices that BIOS didn't handle right.
    918  1.13  augustss  *	Iterate through all devices and try to get the _PTR
    919  1.13  augustss  *	(PCI Routing Table).  If it exists then make sure all
    920  1.13  augustss  *	interrupt links that it uses are working.
    921  1.13  augustss  */
    922  1.13  augustss void
    923  1.13  augustss acpi_pci_fixup(struct acpi_softc *sc)
    924  1.13  augustss {
    925  1.13  augustss 	ACPI_HANDLE parent;
    926  1.13  augustss 
    927  1.13  augustss #ifdef ACPI_DEBUG
    928  1.13  augustss 	printf("acpi_pci_fixup starts:\n");
    929  1.13  augustss #endif
    930  1.13  augustss 	if (AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &parent) != AE_OK)
    931  1.13  augustss 		return;
    932  1.13  augustss 	sc->sc_pci_bus = 0;
    933  1.13  augustss 	AcpiWalkNamespace(ACPI_TYPE_DEVICE, parent, 100,
    934  1.13  augustss 	    acpi_pci_fixup_bus, sc, NULL);
    935  1.13  augustss }
    936  1.13  augustss 
    937  1.13  augustss static ACPI_HANDLE
    938  1.13  augustss acpi_get_node(char *name)
    939  1.13  augustss {
    940  1.13  augustss 	ACPI_NAMESPACE_NODE *ObjDesc;
    941  1.13  augustss 	ACPI_STATUS Status;
    942  1.13  augustss 
    943  1.13  augustss 	Status = AcpiNsGetNodeByPath(name, NULL, 0, &ObjDesc);
    944  1.13  augustss 	if (ACPI_FAILURE (Status)) {
    945  1.13  augustss 		printf("acpi_get_node: could not find: %s\n",
    946  1.13  augustss 		       AcpiFormatException (Status));
    947  1.13  augustss 		return NULL;
    948  1.13  augustss 	}
    949  1.13  augustss 	return ObjDesc;
    950  1.13  augustss }
    951  1.13  augustss 
    952  1.13  augustss static uint
    953  1.13  augustss acpi_get_intr(ACPI_HANDLE handle)
    954  1.13  augustss {
    955  1.13  augustss 	ACPI_BUFFER ret;
    956  1.13  augustss 	ACPI_STATUS rv;
    957  1.13  augustss 	ACPI_RESOURCE *res;
    958  1.13  augustss 	ACPI_RESOURCE_IRQ *irq;
    959  1.13  augustss 	uint intr;
    960  1.13  augustss 
    961  1.13  augustss 	intr = -1;
    962  1.13  augustss 	rv = acpi_get(handle, &ret, AcpiGetCurrentResources);
    963  1.13  augustss 	if (ACPI_FAILURE(rv))
    964  1.13  augustss 		return (intr);
    965  1.13  augustss 	for (res = ret.Pointer; res->Id != ACPI_RSTYPE_END_TAG;
    966  1.13  augustss 	     res = ACPI_NEXT_RESOURCE(res)) {
    967  1.13  augustss 		if (res->Id == ACPI_RSTYPE_IRQ) {
    968  1.13  augustss 			irq = (ACPI_RESOURCE_IRQ *)&res->Data;
    969  1.13  augustss 			if (irq->NumberOfInterrupts == 1)
    970  1.13  augustss 				intr = irq->Interrupts[0];
    971  1.13  augustss 			break;
    972  1.13  augustss 		}
    973  1.13  augustss 	}
    974  1.13  augustss 	free(ret.Pointer, M_DEVBUF);
    975  1.13  augustss 	return (intr);
    976  1.13  augustss }
    977  1.13  augustss 
    978  1.13  augustss static void
    979  1.13  augustss acpi_pci_set_line(int bus, int dev, int pin, int line)
    980  1.13  augustss {
    981  1.13  augustss 	ACPI_STATUS err;
    982  1.13  augustss 	ACPI_PCI_ID pid;
    983  1.13  augustss 	UINT32 intr, id, bhlc;
    984  1.13  augustss 	int func, nfunc;
    985  1.13  augustss 
    986  1.13  augustss 	pid.Bus = bus;
    987  1.13  augustss 	pid.Device = dev;
    988  1.13  augustss 	pid.Function = 0;
    989  1.13  augustss 
    990  1.13  augustss 	err = AcpiOsReadPciConfiguration(&pid, PCI_BHLC_REG, &bhlc, 32);
    991  1.13  augustss 	if (err)
    992  1.13  augustss 		return;
    993  1.13  augustss 	if (PCI_HDRTYPE_MULTIFN(bhlc))
    994  1.13  augustss 		nfunc = 8;
    995  1.13  augustss 	else
    996  1.13  augustss 		nfunc = 1;
    997  1.13  augustss 
    998  1.13  augustss 	for (func = 0; func < nfunc; func++) {
    999  1.13  augustss 		pid.Function = func;
   1000  1.13  augustss 
   1001  1.13  augustss 		err = AcpiOsReadPciConfiguration(&pid, PCI_ID_REG, &id, 32);
   1002  1.13  augustss 		if (err || PCI_VENDOR(id) == PCI_VENDOR_INVALID ||
   1003  1.13  augustss 		    PCI_VENDOR(id) == 0)
   1004  1.13  augustss 			continue;
   1005  1.13  augustss 
   1006  1.13  augustss 		err = AcpiOsReadPciConfiguration(&pid, PCI_INTERRUPT_REG,
   1007  1.13  augustss 			  &intr, 32);
   1008  1.13  augustss 		if (err) {
   1009  1.13  augustss 			printf("AcpiOsReadPciConfiguration failed %d\n", err);
   1010  1.13  augustss 			return;
   1011  1.13  augustss 		}
   1012  1.13  augustss 		if (pin == PCI_INTERRUPT_PIN(intr) &&
   1013  1.13  augustss 		    line != PCI_INTERRUPT_LINE(intr)) {
   1014  1.13  augustss #ifdef ACPI_DEBUG
   1015  1.13  augustss 			printf("acpi fixup pci intr: %d:%d:%d %c: %d -> %d\n",
   1016  1.13  augustss 			       bus, dev, func,
   1017  1.13  augustss 			       pin + '@', PCI_INTERRUPT_LINE(intr),
   1018  1.13  augustss 			       line);
   1019  1.13  augustss #endif
   1020  1.13  augustss 			intr &= ~(PCI_INTERRUPT_LINE_MASK <<
   1021  1.13  augustss 				  PCI_INTERRUPT_LINE_SHIFT);
   1022  1.13  augustss 			intr |= line << PCI_INTERRUPT_LINE_SHIFT;
   1023  1.13  augustss 			err = AcpiOsWritePciConfiguration(&pid,
   1024  1.13  augustss 				  PCI_INTERRUPT_REG, intr, 32);
   1025  1.13  augustss 			if (err) {
   1026  1.13  augustss 				printf("AcpiOsWritePciConfiguration failed"
   1027  1.13  augustss 				       " %d\n", err);
   1028  1.13  augustss 				return;
   1029  1.13  augustss 			}
   1030  1.13  augustss 		}
   1031  1.13  augustss 	}
   1032  1.13  augustss }
   1033  1.13  augustss 
   1034  1.13  augustss ACPI_STATUS
   1035  1.13  augustss acpi_pci_fixup_bus(ACPI_HANDLE handle, UINT32 level, void *context,
   1036  1.13  augustss 		   void **status)
   1037  1.13  augustss {
   1038  1.13  augustss 	struct acpi_softc *sc = context;
   1039  1.13  augustss 	ACPI_STATUS rv;
   1040  1.13  augustss 	ACPI_BUFFER buf;
   1041  1.13  augustss 	UINT8 *Buffer;
   1042  1.13  augustss 	ACPI_PCI_ROUTING_TABLE *PrtElement;
   1043  1.13  augustss 	ACPI_HANDLE link;
   1044  1.13  augustss 	uint line;
   1045  1.28      fvdl 	ACPI_NAMESPACE_NODE *node;
   1046  1.28      fvdl 	ACPI_INTEGER val;
   1047  1.13  augustss 
   1048  1.13  augustss 	rv = acpi_get(handle, &buf, AcpiGetIrqRoutingTable);
   1049  1.13  augustss 	if (ACPI_FAILURE(rv))
   1050  1.13  augustss 		return (AE_OK);
   1051  1.13  augustss 
   1052  1.28      fvdl 	/*
   1053  1.28      fvdl 	 * If at level 1, this is a PCI root bus. Try the _BBN method
   1054  1.28      fvdl 	 * to get the right PCI bus numbering for the following
   1055  1.28      fvdl 	 * busses (this is a depth-first walk). It may fail,
   1056  1.28      fvdl 	 * for example if there's only one root bus, but that
   1057  1.28      fvdl 	 * case should be ok, so we'll ignore that.
   1058  1.28      fvdl 	 */
   1059  1.28      fvdl 	if (level == 1) {
   1060  1.28      fvdl 		node = AcpiNsMapHandleToNode(handle);
   1061  1.28      fvdl 		rv = AcpiUtEvaluateNumericObject(METHOD_NAME__BBN, node, &val);
   1062  1.28      fvdl 		if (!ACPI_FAILURE(rv)) {
   1063  1.28      fvdl #ifdef ACPI_DEBUG
   1064  1.28      fvdl 			printf("%s: fixup: _BBN success, bus # was %d now %d\n",
   1065  1.28      fvdl 			    sc->sc_dev.dv_xname, sc->sc_pci_bus,
   1066  1.28      fvdl 			    ACPI_LOWORD(val));
   1067  1.28      fvdl #endif
   1068  1.28      fvdl 			sc->sc_pci_bus = ACPI_LOWORD(val);
   1069  1.28      fvdl 		}
   1070  1.28      fvdl 	}
   1071  1.28      fvdl 
   1072  1.28      fvdl 
   1073  1.13  augustss #ifdef ACPI_DEBUG
   1074  1.28      fvdl 	printf("%s: fixing up PCI bus %d at level %u\n", sc->sc_dev.dv_xname,
   1075  1.28      fvdl 	    sc->sc_pci_bus, level);
   1076  1.13  augustss #endif
   1077  1.13  augustss 
   1078  1.13  augustss         for (Buffer = buf.Pointer; ; Buffer += PrtElement->Length) {
   1079  1.13  augustss 		PrtElement = (ACPI_PCI_ROUTING_TABLE *)Buffer;
   1080  1.13  augustss 		if (PrtElement->Length == 0)
   1081  1.13  augustss 			break;
   1082  1.28      fvdl 		if (PrtElement->Source[0] == 0)
   1083  1.13  augustss 			continue;
   1084  1.13  augustss 
   1085  1.13  augustss 		link = acpi_get_node(PrtElement->Source);
   1086  1.13  augustss 		if (link == NULL)
   1087  1.13  augustss 			continue;
   1088  1.13  augustss 		line = acpi_get_intr(link);
   1089  1.13  augustss 		if (line == -1) {
   1090  1.13  augustss #ifdef ACPI_DEBUG
   1091  1.23  augustss 			printf("%s: fixing up intr link %s\n",
   1092  1.23  augustss 			    sc->sc_dev.dv_xname, PrtElement->Source);
   1093  1.13  augustss #endif
   1094  1.13  augustss 			rv = acpi_allocate_resources(link);
   1095  1.13  augustss 			if (ACPI_FAILURE(rv)) {
   1096  1.13  augustss 				printf("%s: interrupt allocation failed %s\n",
   1097  1.13  augustss 				    sc->sc_dev.dv_xname, PrtElement->Source);
   1098  1.13  augustss 				continue;
   1099  1.13  augustss 			}
   1100  1.13  augustss 			line = acpi_get_intr(link);
   1101  1.13  augustss 			if (line == -1) {
   1102  1.13  augustss 				printf("%s: get intr failed %s\n",
   1103  1.13  augustss 				    sc->sc_dev.dv_xname, PrtElement->Source);
   1104  1.13  augustss 				continue;
   1105  1.13  augustss 			}
   1106  1.13  augustss 		}
   1107  1.13  augustss 
   1108  1.13  augustss 		acpi_pci_set_line(sc->sc_pci_bus, PrtElement->Address >> 16,
   1109  1.13  augustss 		    PrtElement->Pin + 1, line);
   1110  1.13  augustss 	}
   1111  1.13  augustss 
   1112  1.13  augustss 	sc->sc_pci_bus++;
   1113  1.13  augustss 
   1114  1.13  augustss 	free(buf.Pointer, M_DEVBUF);
   1115  1.13  augustss 	return (AE_OK);
   1116  1.13  augustss }
   1117  1.15  augustss #endif /* ACPI_PCI_FIXUP */
   1118  1.13  augustss 
   1119  1.15  augustss #if ACPI_PCI_FIXUP || ACPI_ACTIVATE_DEV
   1120  1.13  augustss /* XXX This very incomplete */
   1121  1.13  augustss ACPI_STATUS
   1122  1.13  augustss acpi_allocate_resources(ACPI_HANDLE handle)
   1123  1.13  augustss {
   1124  1.13  augustss 	ACPI_BUFFER bufp, bufc, bufn;
   1125  1.13  augustss 	ACPI_RESOURCE *resp, *resc, *resn;
   1126  1.13  augustss 	ACPI_RESOURCE_IRQ *irq;
   1127  1.13  augustss 	ACPI_STATUS rv;
   1128  1.13  augustss 	uint delta;
   1129  1.13  augustss 
   1130  1.13  augustss 	rv = acpi_get(handle, &bufp, AcpiGetPossibleResources);
   1131  1.13  augustss 	if (ACPI_FAILURE(rv))
   1132  1.13  augustss 		goto out;
   1133  1.13  augustss 	rv = acpi_get(handle, &bufc, AcpiGetCurrentResources);
   1134  1.13  augustss 	if (ACPI_FAILURE(rv)) {
   1135  1.13  augustss 		goto out1;
   1136  1.13  augustss 	}
   1137  1.13  augustss 
   1138  1.13  augustss 	bufn.Length = 1000;
   1139  1.13  augustss 	bufn.Pointer = resn = malloc(bufn.Length, M_DEVBUF, M_WAITOK);
   1140  1.13  augustss 	resp = bufp.Pointer;
   1141  1.13  augustss 	resc = bufc.Pointer;
   1142  1.13  augustss 	while (resc->Id != ACPI_RSTYPE_END_TAG &&
   1143  1.13  augustss 	       resp->Id != ACPI_RSTYPE_END_TAG) {
   1144  1.13  augustss 		while (resc->Id != resp->Id && resp->Id != ACPI_RSTYPE_END_TAG)
   1145  1.13  augustss 			resp = ACPI_NEXT_RESOURCE(resp);
   1146  1.13  augustss 		if (resp->Id == ACPI_RSTYPE_END_TAG)
   1147  1.13  augustss 			break;
   1148  1.13  augustss 		/* Found identical Id */
   1149  1.13  augustss 		resn->Id = resc->Id;
   1150  1.13  augustss 		switch (resc->Id) {
   1151  1.13  augustss 		case ACPI_RSTYPE_IRQ:
   1152  1.13  augustss 			memcpy(&resn->Data, &resp->Data,
   1153  1.13  augustss 			       sizeof(ACPI_RESOURCE_IRQ));
   1154  1.13  augustss 			irq = (ACPI_RESOURCE_IRQ *)&resn->Data;
   1155  1.13  augustss 			irq->Interrupts[0] =
   1156  1.13  augustss 			    ((ACPI_RESOURCE_IRQ *)&resp->Data)->
   1157  1.13  augustss 			        Interrupts[irq->NumberOfInterrupts-1];
   1158  1.13  augustss 			irq->NumberOfInterrupts = 1;
   1159  1.13  augustss 			resn->Length = ACPI_SIZEOF_RESOURCE(ACPI_RESOURCE_IRQ);
   1160  1.13  augustss 			break;
   1161  1.13  augustss 		case ACPI_RSTYPE_IO:
   1162  1.13  augustss 			memcpy(&resn->Data, &resp->Data,
   1163  1.13  augustss 			       sizeof(ACPI_RESOURCE_IO));
   1164  1.13  augustss 			resn->Length = resp->Length;
   1165  1.13  augustss 			break;
   1166  1.13  augustss 		default:
   1167  1.13  augustss 			printf("acpi_allocate_resources: res=%d\n", resc->Id);
   1168  1.13  augustss 			rv = AE_BAD_DATA;
   1169  1.13  augustss 			goto out2;
   1170  1.13  augustss 		}
   1171  1.13  augustss 		resc = ACPI_NEXT_RESOURCE(resc);
   1172  1.13  augustss 		resn = ACPI_NEXT_RESOURCE(resn);
   1173  1.13  augustss 		delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer;
   1174  1.23  augustss 		if (delta >=
   1175  1.23  augustss 		    bufn.Length-ACPI_SIZEOF_RESOURCE(ACPI_RESOURCE_DATA)) {
   1176  1.13  augustss 			bufn.Length *= 2;
   1177  1.13  augustss 			bufn.Pointer = realloc(bufn.Pointer, bufn.Length,
   1178  1.13  augustss 					       M_DEVBUF, M_WAITOK);
   1179  1.13  augustss 			resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta);
   1180  1.13  augustss 		}
   1181  1.13  augustss 	}
   1182  1.13  augustss 	if (resc->Id != ACPI_RSTYPE_END_TAG) {
   1183  1.13  augustss 		printf("acpi_allocate_resources: resc not exhausted\n");
   1184  1.13  augustss 		rv = AE_BAD_DATA;
   1185  1.13  augustss 		goto out3;
   1186  1.13  augustss 	}
   1187  1.13  augustss 
   1188  1.13  augustss 	resn->Id = ACPI_RSTYPE_END_TAG;
   1189  1.13  augustss 	rv = AcpiSetCurrentResources(handle, &bufn);
   1190  1.13  augustss 	if (ACPI_FAILURE(rv)) {
   1191  1.13  augustss 		printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n",
   1192  1.13  augustss 		       AcpiFormatException(rv));
   1193  1.13  augustss 	}
   1194  1.13  augustss 
   1195  1.13  augustss out3:
   1196  1.13  augustss 	free(bufn.Pointer, M_DEVBUF);
   1197  1.13  augustss out2:
   1198  1.13  augustss 	free(bufc.Pointer, M_DEVBUF);
   1199  1.13  augustss out1:
   1200  1.13  augustss 	free(bufp.Pointer, M_DEVBUF);
   1201  1.13  augustss out:
   1202  1.13  augustss 	return rv;
   1203  1.13  augustss }
   1204  1.15  augustss #endif /* ACPI_PCI_FIXUP || ACPI_ACTIVATE_DEV */
   1205