| /* SPDX-License-Identifier: GPL-2.0+ */ |
| #ifndef _LINUX_APM_H |
| #define _LINUX_APM_H |
| |
| /* |
| * Include file for the interface to an APM BIOS |
| * Copyright 1994-2001 Stephen Rothwell (sfr@canb.auug.org.au) |
| */ |
| |
| #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; |
| }; |
| |
| #ifdef __KERNEL__ |
| |
| #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; |
| |
| #endif /* __KERNEL__ */ |
| |
| /* |
| * 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 |
| |
| #ifdef __KERNEL__ |
| /* |
| * 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 |
| |
| /* |
| * 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 /* LINUX_APM_H */ |
