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/*-
 * Copyright (c) 1999 Takanori Watanabe <takawata@shidahara1.planet.sci.kobe-u.ac.jp>
 * Copyright (c) 1999, 2000 Mitsuru IWASAKI <iwasaki@FreeBSD.org>
 * All rights reserved.
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 THE AUTHOR OR CONTRIBUTORS 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.
 *
 *	$FreeBSD$
 */

#ifndef _DEV_ACPI_ACPI_H_
#define _DEV_ACPI_ACPI_H_

/* PowerResource control */
struct acpi_powerres_device {
	LIST_ENTRY(acpi_powerres_device) links;
	struct	aml_name *name;
#define ACPI_D_STATE_D0		0
#define ACPI_D_STATE_D1		1
#define ACPI_D_STATE_D2		2
#define ACPI_D_STATE_D3		3
	u_int8_t	state;		/* D0 to D3 */
	u_int8_t	next_state;	/* initialized with D0 */
};

struct acpi_powerres_device_ref {
	LIST_ENTRY(acpi_powerres_device_ref) links;
	struct	acpi_powerres_device *device;
};

struct acpi_powerres_info {
	LIST_ENTRY(acpi_powerres_info) links;
	struct	aml_name *name;
#define ACPI_POWER_RESOURCE_ON	1
#define ACPI_POWER_RESOURCE_OFF	0
	u_int8_t	state;		/* OFF or ON */
#define ACPI_PR_MAX		3	/* _PR[0-2] */
	LIST_HEAD(, acpi_powerres_device_ref) reflist[ACPI_PR_MAX];
};

/* softc */
typedef struct acpi_softc {
	struct	ACPIsdt *rsdt;
	struct	ACPIsdt *facp;
	struct	FACPbody *facp_body;
	struct	ACPIsdt *dsdt;
	struct	FACS *facs;
	int	system_state;
	int	system_state_initialized;
	int	broken_wakeuplogic;
	int	enabled;
	struct	acpi_system_state_package system_state_package;
	LIST_HEAD(, acpi_powerres_info) acpi_powerres_inflist;
	LIST_HEAD(, acpi_powerres_device) acpi_powerres_devlist;
} acpi_softc_t;

/* Device State */
u_int8_t	 acpi_get_current_device_state(struct aml_name *);
void		 acpi_set_device_state(acpi_softc_t *, struct aml_name *,
				       u_int8_t);

/* PowerResource State */
void		 acpi_powerres_init(acpi_softc_t *);
void		 acpi_powerres_debug(acpi_softc_t *);
u_int8_t	 acpi_get_current_powerres_state(struct aml_name *);
void		 acpi_set_powerres_state(acpi_softc_t *, struct aml_name *,
				         u_int8_t);
void		 acpi_powerres_set_sleeping_state(acpi_softc_t *, u_int8_t);

#endif	/* !_DEV_ACPI_ACPI_H_ */
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