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acpivar.h revision 1.1 
      1 /*	$NetBSD: acpivar.h,v 1.1 2001/09/28 02:09:24 thorpej Exp $	*/
      2 
      3 /*
      4  * Copyright 2001 Wasabi Systems, Inc.
      5  * All rights reserved.
      6  *
      7  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *	This product includes software developed for the NetBSD Project by
     20  *	Wasabi Systems, Inc.
     21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
     22  *    or promote products derived from this software without specific prior
     23  *    written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
     29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     35  * POSSIBILITY OF SUCH DAMAGE.
     36  */
     37 
     38 /*
     39  * This file defines the ACPI interface provided to the rest of the
     40  * kernel, as well as the autoconfiguration structures for ACPI
     41  * support.
     42  */
     43 
     44 #include <machine/bus.h>
     45 #include <dev/pci/pcivar.h>
     46 
     47 #include <dev/acpi/acpica.h>
     48 
     49 /*
     50  * acpibus_attach_args:
     51  *
     52  *	This structure is used to attach the ACPI "bus".
     53  */
     54 struct acpibus_attach_args {
     55 	const char *aa_busname;		/* XXX should be common */
     56 	bus_space_tag_t aa_iot;		/* PCI I/O space tag */
     57 	bus_space_tag_t aa_memt;	/* PCI MEM space tag */
     58 	pci_chipset_tag_t aa_pc;	/* PCI chipset */
     59 	int aa_pciflags;		/* PCI bus flags */
     60 };
     61 
     62 /*
     63  * Types of switches that ACPI understands.
     64  */
     65 #define	ACPI_SWITCH_POWERBUTTON		0
     66 #define	ACPI_SWITCH_SLEEPBUTTON		1
     67 #define	ACPI_SWITCH_LID			2
     68 #define	ACPI_NSWITCHES			3
     69 
     70 /*
     71  * acpi_devnode:
     72  *
     73  *	An ACPI device node.
     74  */
     75 struct acpi_devnode {
     76 	TAILQ_ENTRY(acpi_devnode) ad_list;
     77 	ACPI_HANDLE	ad_handle;	/* our ACPI handle */
     78 	u_int32_t	ad_level;	/* ACPI level */
     79 	u_int32_t	ad_type;	/* ACPI object type */
     80 	ACPI_DEVICE_INFO ad_devinfo;	/* our ACPI device info */
     81 	struct acpi_scope *ad_scope;	/* backpointer to scope */
     82 	struct device	*ad_device;	/* pointer to configured device */
     83 };
     84 
     85 /*
     86  * acpi_scope:
     87  *
     88  *	Description of an ACPI scope.
     89  */
     90 struct acpi_scope {
     91 	TAILQ_ENTRY(acpi_scope) as_list;
     92 	const char *as_name;		/* scope name */
     93 	/*
     94 	 * Device nodes we manage.
     95 	 */
     96 	TAILQ_HEAD(, acpi_devnode) as_devnodes;
     97 };
     98 
     99 /*
    100  * acpi_softc:
    101  *
    102  *	Software state of the ACPI subsystem.
    103  */
    104 struct acpi_softc {
    105 	struct device sc_dev;		/* base device info */
    106 	bus_space_tag_t sc_iot;		/* PCI I/O space tag */
    107 	bus_space_tag_t sc_memt;	/* PCI MEM space tag */
    108 	pci_chipset_tag_t sc_pc;	/* PCI chipset tag */
    109 	int sc_pciflags;		/* PCI bus flags */
    110 
    111 	void *sc_sdhook;		/* shutdown hook */
    112 
    113 	/*
    114 	 * Sleep state to transition to when a given
    115 	 * switch is activated.
    116 	 */
    117 	int sc_switch_sleep[ACPI_NSWITCHES];
    118 
    119 	int sc_sleepstate;		/* current sleep state */
    120 
    121 	/*
    122 	 * Scopes we manage.
    123 	 */
    124 	TAILQ_HEAD(, acpi_scope) sc_scopes;
    125 };
    126 
    127 struct acpi_attach_args {
    128 	struct acpi_devnode *aa_node;	/* ACPI device node */
    129 	bus_space_tag_t aa_iot;		/* PCI I/O space tag */
    130 	bus_space_tag_t aa_memt;	/* PCI MEM space tag */
    131 	pci_chipset_tag_t aa_pc;	/* PCI chipset tag */
    132 	int aa_pciflags;		/* PCI bus flags */
    133 };
    134 
    135 extern struct acpi_softc *acpi_softc;
    136 extern int acpi_active;
    137 
    138 int		acpi_probe(void);
    139 
    140 ACPI_STATUS	acpi_eval_integer(ACPI_HANDLE, char *, int *);
    141