#ifndef _LINUX_APM_H
#define _LINUX_APM_H

/*
 * Include file for the interface to an APM BIOS
 * Copyright 1994-2001 Stephen Rothwell (sfr@canb.auug.org.au)
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2, or (at your option) any
 * later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */

#include <linux/types.h>

typedef unsigned short        apm_event_t;
typedef unsigned short        apm_eventinfo_t;

struct apm_bios_info {
        __u16        version;
        __u16        cseg;
        __u32        offset;
        __u16        cseg_16;
        __u16        dseg;
        __u16        flags;
        __u16        cseg_len;
        __u16        cseg_16_len;
        __u16        dseg_len;
};


/*
 * Power states
 */
#define APM_STATE_READY                0x0000
#define APM_STATE_STANDBY        0x0001
#define APM_STATE_SUSPEND        0x0002
#define APM_STATE_OFF                0x0003
#define APM_STATE_BUSY                0x0004
#define APM_STATE_REJECT        0x0005
#define APM_STATE_OEM_SYS        0x0020
#define APM_STATE_OEM_DEV        0x0040

#define APM_STATE_DISABLE        0x0000
#define APM_STATE_ENABLE        0x0001

#define APM_STATE_DISENGAGE        0x0000
#define APM_STATE_ENGAGE        0x0001

/*
 * Events (results of Get PM Event)
 */
#define APM_SYS_STANDBY                0x0001
#define APM_SYS_SUSPEND                0x0002
#define APM_NORMAL_RESUME        0x0003
#define APM_CRITICAL_RESUME        0x0004
#define APM_LOW_BATTERY                0x0005
#define APM_POWER_STATUS_CHANGE        0x0006
#define APM_UPDATE_TIME                0x0007
#define APM_CRITICAL_SUSPEND        0x0008
#define APM_USER_STANDBY        0x0009
#define APM_USER_SUSPEND        0x000a
#define APM_STANDBY_RESUME        0x000b
#define APM_CAPABILITY_CHANGE        0x000c

/*
 * Error codes
 */
#define APM_SUCCESS                0x00
#define APM_DISABLED                0x01
#define APM_CONNECTED                0x02
#define APM_NOT_CONNECTED        0x03
#define APM_16_CONNECTED        0x05
#define APM_16_UNSUPPORTED        0x06
#define APM_32_CONNECTED        0x07
#define APM_32_UNSUPPORTED        0x08
#define APM_BAD_DEVICE                0x09
#define APM_BAD_PARAM                0x0a
#define APM_NOT_ENGAGED                0x0b
#define APM_BAD_FUNCTION        0x0c
#define APM_RESUME_DISABLED        0x0d
#define APM_NO_ERROR                0x53
#define APM_BAD_STATE                0x60
#define APM_NO_EVENTS                0x80
#define APM_NOT_PRESENT                0x86

/*
 * APM Device IDs
 */
#define APM_DEVICE_BIOS                0x0000
#define APM_DEVICE_ALL                0x0001
#define APM_DEVICE_DISPLAY        0x0100
#define APM_DEVICE_STORAGE        0x0200
#define APM_DEVICE_PARALLEL        0x0300
#define APM_DEVICE_SERIAL        0x0400
#define APM_DEVICE_NETWORK        0x0500
#define APM_DEVICE_PCMCIA        0x0600
#define APM_DEVICE_BATTERY        0x8000
#define APM_DEVICE_OEM                0xe000
#define APM_DEVICE_OLD_ALL        0xffff
#define APM_DEVICE_CLASS        0x00ff
#define APM_DEVICE_MASK                0xff00


/*
 * Battery status
 */
#define APM_MAX_BATTERIES        2

/*
 * APM defined capability bit flags
 */
#define APM_CAP_GLOBAL_STANDBY                0x0001
#define APM_CAP_GLOBAL_SUSPEND                0x0002
#define APM_CAP_RESUME_STANDBY_TIMER        0x0004 /* Timer resume from standby */
#define APM_CAP_RESUME_SUSPEND_TIMER        0x0008 /* Timer resume from suspend */
#define APM_CAP_RESUME_STANDBY_RING        0x0010 /* Resume on Ring fr standby */
#define APM_CAP_RESUME_SUSPEND_RING        0x0020 /* Resume on Ring fr suspend */
#define APM_CAP_RESUME_STANDBY_PCMCIA        0x0040 /* Resume on PCMCIA Ring        */
#define APM_CAP_RESUME_SUSPEND_PCMCIA        0x0080 /* Resume on PCMCIA Ring        */

/*
 * ioctl operations
 */
#include <linux/ioctl.h>

#define APM_IOC_STANDBY                _IO('A', 1)
#define APM_IOC_SUSPEND                _IO('A', 2)

#endif        /* LINUX_APM_H */