xref: /src/sys/dev/acpi/acpivar.h

/*	$NetBSD: acpivar.h,v 1.1 2001/09/28 02:09:24 thorpej Exp $	*/

/*
 * Copyright 2001 Wasabi Systems, Inc.
 * All rights reserved.
 *
 * Written by Jason R. Thorpe for Wasabi Systems, Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed for the NetBSD Project by
 *	Wasabi Systems, Inc.
 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
 *    or promote products derived from this software without specific prior
 *    written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

/*
 * This file defines the ACPI interface provided to the rest of the
 * kernel, as well as the autoconfiguration structures for ACPI
 * support.
 */

#include <machine/bus.h>
#include <dev/pci/pcivar.h>

#include <dev/acpi/acpica.h>

/*
 * acpibus_attach_args:
 *
 *	This structure is used to attach the ACPI "bus".
 */
struct acpibus_attach_args {
	const char *aa_busname;		/* XXX should be common */
	bus_space_tag_t aa_iot;		/* PCI I/O space tag */
	bus_space_tag_t aa_memt;	/* PCI MEM space tag */
	pci_chipset_tag_t aa_pc;	/* PCI chipset */
	int aa_pciflags;		/* PCI bus flags */
};

/*
 * Types of switches that ACPI understands.
 */
#define	ACPI_SWITCH_POWERBUTTON		0
#define	ACPI_SWITCH_SLEEPBUTTON		1
#define	ACPI_SWITCH_LID			2
#define	ACPI_NSWITCHES			3

/*
 * acpi_devnode:
 *
 *	An ACPI device node.
 */
struct acpi_devnode {
	TAILQ_ENTRY(acpi_devnode) ad_list;
	ACPI_HANDLE	ad_handle;	/* our ACPI handle */
	u_int32_t	ad_level;	/* ACPI level */
	u_int32_t	ad_type;	/* ACPI object type */
	ACPI_DEVICE_INFO ad_devinfo;	/* our ACPI device info */
	struct acpi_scope *ad_scope;	/* backpointer to scope */
	struct device	*ad_device;	/* pointer to configured device */
};

/*
 * acpi_scope:
 *
 *	Description of an ACPI scope.
 */
struct acpi_scope {
	TAILQ_ENTRY(acpi_scope) as_list;
	const char *as_name;		/* scope name */
	/*
	 * Device nodes we manage.
	 */
	TAILQ_HEAD(, acpi_devnode) as_devnodes;
};

/*
 * acpi_softc:
 *
 *	Software state of the ACPI subsystem.
 */
struct acpi_softc {
	struct device sc_dev;		/* base device info */
	bus_space_tag_t sc_iot;		/* PCI I/O space tag */
	bus_space_tag_t sc_memt;	/* PCI MEM space tag */
	pci_chipset_tag_t sc_pc;	/* PCI chipset tag */
	int sc_pciflags;		/* PCI bus flags */

	void *sc_sdhook;		/* shutdown hook */

	/*
	 * Sleep state to transition to when a given
	 * switch is activated.
	 */
	int sc_switch_sleep[ACPI_NSWITCHES];

	int sc_sleepstate;		/* current sleep state */

	/*
	 * Scopes we manage.
	 */
	TAILQ_HEAD(, acpi_scope) sc_scopes;
};

struct acpi_attach_args {
	struct acpi_devnode *aa_node;	/* ACPI device node */
	bus_space_tag_t aa_iot;		/* PCI I/O space tag */
	bus_space_tag_t aa_memt;	/* PCI MEM space tag */
	pci_chipset_tag_t aa_pc;	/* PCI chipset tag */
	int aa_pciflags;		/* PCI bus flags */
};

extern struct acpi_softc *acpi_softc;
extern int acpi_active;

int		acpi_probe(void);

ACPI_STATUS	acpi_eval_integer(ACPI_HANDLE, char *, int *);