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/* SPDX-License-Identifier: GPL-2.0-only */
/* -*- linux-c -*-
 *
 * (C) 2003 zecke@handhelds.org
 *
 * based on arch/arm/kernel/apm.c
 * factor out the information needed by architectures to provide
 * apm status
 */
#ifndef __LINUX_APM_EMULATION_H
#define __LINUX_APM_EMULATION_H

#include <linux/apm_bios.h>

/*
 * This structure gets filled in by the machine specific 'get_power_status'
 * implementation.  Any fields which are not set default to a safe value.
 */
struct apm_power_info {
	unsigned char	ac_line_status;
#define APM_AC_OFFLINE			0
#define APM_AC_ONLINE			1
#define APM_AC_BACKUP			2
#define APM_AC_UNKNOWN			0xff

	unsigned char	battery_status;
#define APM_BATTERY_STATUS_HIGH		0
#define APM_BATTERY_STATUS_LOW		1
#define APM_BATTERY_STATUS_CRITICAL	2
#define APM_BATTERY_STATUS_CHARGING	3
#define APM_BATTERY_STATUS_NOT_PRESENT	4
#define APM_BATTERY_STATUS_UNKNOWN	0xff

	unsigned char	battery_flag;
#define APM_BATTERY_FLAG_HIGH		(1 << 0)
#define APM_BATTERY_FLAG_LOW		(1 << 1)
#define APM_BATTERY_FLAG_CRITICAL	(1 << 2)
#define APM_BATTERY_FLAG_CHARGING	(1 << 3)
#define APM_BATTERY_FLAG_NOT_PRESENT	(1 << 7)
#define APM_BATTERY_FLAG_UNKNOWN	0xff

	int		battery_life;
	int		time;
	int		units;
#define APM_UNITS_MINS			0
#define APM_UNITS_SECS			1
#define APM_UNITS_UNKNOWN		-1

};

/*
 * This allows machines to provide their own "apm get power status" function.
 */
extern void (*apm_get_power_status)(struct apm_power_info *);

/*
 * Queue an event (APM_SYS_SUSPEND or APM_CRITICAL_SUSPEND)
 */
void apm_queue_event(apm_event_t event);

#endif /* __LINUX_APM_EMULATION_H */