/* SPDX-License-Identifier: GPL-2.0-or-later */
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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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#ifndef _LINUX_APM_H
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#define _LINUX_APM_H
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#include <uapi/linux/apm_bios.h>
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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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/*
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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 /* LINUX_APM_H */
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