#ifndef _LINUX_APM_H
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#define _LINUX_APM_H
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/*
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* Include file for the interface to an APM BIOS
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* Copyright 1994-2001 Stephen Rothwell (sfr@canb.auug.org.au)
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <linux/types.h>
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typedef unsigned short apm_event_t;
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typedef unsigned short apm_eventinfo_t;
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struct apm_bios_info {
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__u16 version;
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__u16 cseg;
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__u32 offset;
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__u16 cseg_16;
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__u16 dseg;
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__u16 flags;
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__u16 cseg_len;
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__u16 cseg_16_len;
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__u16 dseg_len;
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};
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#ifdef __KERNEL__
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#define APM_CS (GDT_ENTRY_APMBIOS_BASE * 8)
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#define APM_CS_16 (APM_CS + 8)
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#define APM_DS (APM_CS_16 + 8)
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/* Results of APM Installation Check */
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#define APM_16_BIT_SUPPORT 0x0001
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#define APM_32_BIT_SUPPORT 0x0002
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#define APM_IDLE_SLOWS_CLOCK 0x0004
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#define APM_BIOS_DISABLED 0x0008
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#define APM_BIOS_DISENGAGED 0x0010
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/*
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* Data for APM that is persistent across module unload/load
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*/
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struct apm_info {
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struct apm_bios_info bios;
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unsigned short connection_version;
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int get_power_status_broken;
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int get_power_status_swabinminutes;
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int allow_ints;
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int forbid_idle;
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int realmode_power_off;
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int disabled;
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};
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/*
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* The APM function codes
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*/
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#define APM_FUNC_INST_CHECK 0x5300
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#define APM_FUNC_REAL_CONN 0x5301
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#define APM_FUNC_16BIT_CONN 0x5302
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#define APM_FUNC_32BIT_CONN 0x5303
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#define APM_FUNC_DISCONN 0x5304
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#define APM_FUNC_IDLE 0x5305
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#define APM_FUNC_BUSY 0x5306
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#define APM_FUNC_SET_STATE 0x5307
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#define APM_FUNC_ENABLE_PM 0x5308
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#define APM_FUNC_RESTORE_BIOS 0x5309
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#define APM_FUNC_GET_STATUS 0x530a
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#define APM_FUNC_GET_EVENT 0x530b
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#define APM_FUNC_GET_STATE 0x530c
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#define APM_FUNC_ENABLE_DEV_PM 0x530d
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#define APM_FUNC_VERSION 0x530e
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#define APM_FUNC_ENGAGE_PM 0x530f
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#define APM_FUNC_GET_CAP 0x5310
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#define APM_FUNC_RESUME_TIMER 0x5311
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#define APM_FUNC_RESUME_ON_RING 0x5312
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#define APM_FUNC_TIMER 0x5313
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/*
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* Function code for APM_FUNC_RESUME_TIMER
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*/
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#define APM_FUNC_DISABLE_TIMER 0
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#define APM_FUNC_GET_TIMER 1
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#define APM_FUNC_SET_TIMER 2
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/*
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* Function code for APM_FUNC_RESUME_ON_RING
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*/
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#define APM_FUNC_DISABLE_RING 0
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#define APM_FUNC_ENABLE_RING 1
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#define APM_FUNC_GET_RING 2
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/*
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* Function code for APM_FUNC_TIMER_STATUS
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*/
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#define APM_FUNC_TIMER_DISABLE 0
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#define APM_FUNC_TIMER_ENABLE 1
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#define APM_FUNC_TIMER_GET 2
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/*
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* in arch/i386/kernel/setup.c
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*/
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extern struct apm_info apm_info;
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#endif /* __KERNEL__ */
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/*
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* Power states
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*/
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#define APM_STATE_READY 0x0000
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#define APM_STATE_STANDBY 0x0001
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#define APM_STATE_SUSPEND 0x0002
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#define APM_STATE_OFF 0x0003
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#define APM_STATE_BUSY 0x0004
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#define APM_STATE_REJECT 0x0005
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#define APM_STATE_OEM_SYS 0x0020
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#define APM_STATE_OEM_DEV 0x0040
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#define APM_STATE_DISABLE 0x0000
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#define APM_STATE_ENABLE 0x0001
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#define APM_STATE_DISENGAGE 0x0000
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#define APM_STATE_ENGAGE 0x0001
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/*
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* Events (results of Get PM Event)
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*/
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#define APM_SYS_STANDBY 0x0001
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#define APM_SYS_SUSPEND 0x0002
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#define APM_NORMAL_RESUME 0x0003
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#define APM_CRITICAL_RESUME 0x0004
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#define APM_LOW_BATTERY 0x0005
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#define APM_POWER_STATUS_CHANGE 0x0006
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#define APM_UPDATE_TIME 0x0007
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#define APM_CRITICAL_SUSPEND 0x0008
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#define APM_USER_STANDBY 0x0009
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#define APM_USER_SUSPEND 0x000a
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#define APM_STANDBY_RESUME 0x000b
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#define APM_CAPABILITY_CHANGE 0x000c
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/*
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* Error codes
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*/
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#define APM_SUCCESS 0x00
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#define APM_DISABLED 0x01
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#define APM_CONNECTED 0x02
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#define APM_NOT_CONNECTED 0x03
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#define APM_16_CONNECTED 0x05
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#define APM_16_UNSUPPORTED 0x06
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#define APM_32_CONNECTED 0x07
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#define APM_32_UNSUPPORTED 0x08
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#define APM_BAD_DEVICE 0x09
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#define APM_BAD_PARAM 0x0a
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#define APM_NOT_ENGAGED 0x0b
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#define APM_BAD_FUNCTION 0x0c
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#define APM_RESUME_DISABLED 0x0d
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#define APM_NO_ERROR 0x53
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#define APM_BAD_STATE 0x60
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#define APM_NO_EVENTS 0x80
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#define APM_NOT_PRESENT 0x86
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/*
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* APM Device IDs
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*/
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#define APM_DEVICE_BIOS 0x0000
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#define APM_DEVICE_ALL 0x0001
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#define APM_DEVICE_DISPLAY 0x0100
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#define APM_DEVICE_STORAGE 0x0200
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#define APM_DEVICE_PARALLEL 0x0300
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#define APM_DEVICE_SERIAL 0x0400
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#define APM_DEVICE_NETWORK 0x0500
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#define APM_DEVICE_PCMCIA 0x0600
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#define APM_DEVICE_BATTERY 0x8000
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#define APM_DEVICE_OEM 0xe000
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#define APM_DEVICE_OLD_ALL 0xffff
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#define APM_DEVICE_CLASS 0x00ff
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#define APM_DEVICE_MASK 0xff00
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#ifdef __KERNEL__
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/*
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* This is the "All Devices" ID communicated to the BIOS
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*/
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#define APM_DEVICE_BALL ((apm_info.connection_version > 0x0100) ? \
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APM_DEVICE_ALL : APM_DEVICE_OLD_ALL)
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#endif
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/*
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* Battery status
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*/
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#define APM_MAX_BATTERIES 2
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/*
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* APM defined capability bit flags
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*/
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#define APM_CAP_GLOBAL_STANDBY 0x0001
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#define APM_CAP_GLOBAL_SUSPEND 0x0002
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#define APM_CAP_RESUME_STANDBY_TIMER 0x0004 /* Timer resume from standby */
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#define APM_CAP_RESUME_SUSPEND_TIMER 0x0008 /* Timer resume from suspend */
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#define APM_CAP_RESUME_STANDBY_RING 0x0010 /* Resume on Ring fr standby */
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#define APM_CAP_RESUME_SUSPEND_RING 0x0020 /* Resume on Ring fr suspend */
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#define APM_CAP_RESUME_STANDBY_PCMCIA 0x0040 /* Resume on PCMCIA Ring */
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#define APM_CAP_RESUME_SUSPEND_PCMCIA 0x0080 /* Resume on PCMCIA Ring */
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/*
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* ioctl operations
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*/
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#include <linux/ioctl.h>
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#define APM_IOC_STANDBY _IO('A', 1)
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#define APM_IOC_SUSPEND _IO('A', 2)
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#endif /* LINUX_APM_H */
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