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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Include file for the interface to an APM BIOS
* Copyright 1994-2001 Stephen Rothwell (sfr@canb.auug.org.au)
*/
#ifndef _LINUX_APM_H
#define _LINUX_APM_H
#include <uapi/linux/apm_bios.h>
#define APM_CS (GDT_ENTRY_APMBIOS_BASE * 8)
#define APM_CS_16 (APM_CS + 8)
#define APM_DS (APM_CS_16 + 8)
/* Results of APM Installation Check */
#define APM_16_BIT_SUPPORT 0x0001
#define APM_32_BIT_SUPPORT 0x0002
#define APM_IDLE_SLOWS_CLOCK 0x0004
#define APM_BIOS_DISABLED 0x0008
#define APM_BIOS_DISENGAGED 0x0010
/*
* Data for APM that is persistent across module unload/load
*/
struct apm_info {
struct apm_bios_info bios;
unsigned short connection_version;
int get_power_status_broken;
int get_power_status_swabinminutes;
int allow_ints;
int forbid_idle;
int realmode_power_off;
int disabled;
};
/*
* The APM function codes
*/
#define APM_FUNC_INST_CHECK 0x5300
#define APM_FUNC_REAL_CONN 0x5301
#define APM_FUNC_16BIT_CONN 0x5302
#define APM_FUNC_32BIT_CONN 0x5303
#define APM_FUNC_DISCONN 0x5304
#define APM_FUNC_IDLE 0x5305
#define APM_FUNC_BUSY 0x5306
#define APM_FUNC_SET_STATE 0x5307
#define APM_FUNC_ENABLE_PM 0x5308
#define APM_FUNC_RESTORE_BIOS 0x5309
#define APM_FUNC_GET_STATUS 0x530a
#define APM_FUNC_GET_EVENT 0x530b
#define APM_FUNC_GET_STATE 0x530c
#define APM_FUNC_ENABLE_DEV_PM 0x530d
#define APM_FUNC_VERSION 0x530e
#define APM_FUNC_ENGAGE_PM 0x530f
#define APM_FUNC_GET_CAP 0x5310
#define APM_FUNC_RESUME_TIMER 0x5311
#define APM_FUNC_RESUME_ON_RING 0x5312
#define APM_FUNC_TIMER 0x5313
/*
* Function code for APM_FUNC_RESUME_TIMER
*/
#define APM_FUNC_DISABLE_TIMER 0
#define APM_FUNC_GET_TIMER 1
#define APM_FUNC_SET_TIMER 2
/*
* Function code for APM_FUNC_RESUME_ON_RING
*/
#define APM_FUNC_DISABLE_RING 0
#define APM_FUNC_ENABLE_RING 1
#define APM_FUNC_GET_RING 2
/*
* Function code for APM_FUNC_TIMER_STATUS
*/
#define APM_FUNC_TIMER_DISABLE 0
#define APM_FUNC_TIMER_ENABLE 1
#define APM_FUNC_TIMER_GET 2
/*
* in arch/i386/kernel/setup.c
*/
extern struct apm_info apm_info;
/*
* This is the "All Devices" ID communicated to the BIOS
*/
#define APM_DEVICE_BALL ((apm_info.connection_version > 0x0100) ? \
APM_DEVICE_ALL : APM_DEVICE_OLD_ALL)
#endif /* LINUX_APM_H */
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