/*
* Include file for the interface to an APM BIOS
* Copyright 1994-2001 Stephen Rothwell ([email protected])
*
* 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.
*/
#ifndef _UAPI_LINUX_APM_H
#define _UAPI_LINUX_APM_H


#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 /* _UAPI_LINUX_APM_H */