| /* 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 */ |
