1#ifndef _LINUX_APM_H 2#define _LINUX_APM_H 3 4/* 5 * Include file for the interface to an APM BIOS 6 * Copyright 1994-2001 Stephen Rothwell (sfr@canb.auug.org.au) 7 * 8 * This program is free software; you can redistribute it and/or modify it 9 * under the terms of the GNU General Public License as published by the 10 * Free Software Foundation; either version 2, or (at your option) any 11 * later version. 12 * 13 * This program is distributed in the hope that it will be useful, but 14 * WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * General Public License for more details. 17 */ 18 19#include <linux/types.h> 20 21typedef unsigned short apm_event_t; 22typedef unsigned short apm_eventinfo_t; 23 24struct apm_bios_info { 25 __u16 version; 26 __u16 cseg; 27 __u32 offset; 28 __u16 cseg_16; 29 __u16 dseg; 30 __u16 flags; 31 __u16 cseg_len; 32 __u16 cseg_16_len; 33 __u16 dseg_len; 34}; 35 36#ifdef __KERNEL__ 37 38#define APM_CS (GDT_ENTRY_APMBIOS_BASE * 8) 39#define APM_CS_16 (APM_CS + 8) 40#define APM_DS (APM_CS_16 + 8) 41 42/* Results of APM Installation Check */ 43#define APM_16_BIT_SUPPORT 0x0001 44#define APM_32_BIT_SUPPORT 0x0002 45#define APM_IDLE_SLOWS_CLOCK 0x0004 46#define APM_BIOS_DISABLED 0x0008 47#define APM_BIOS_DISENGAGED 0x0010 48 49/* 50 * Data for APM that is persistent across module unload/load 51 */ 52struct apm_info { 53 struct apm_bios_info bios; 54 unsigned short connection_version; 55 int get_power_status_broken; 56 int get_power_status_swabinminutes; 57 int allow_ints; 58 int forbid_idle; 59 int realmode_power_off; 60 int disabled; 61}; 62 63/* 64 * The APM function codes 65 */ 66#define APM_FUNC_INST_CHECK 0x5300 67#define APM_FUNC_REAL_CONN 0x5301 68#define APM_FUNC_16BIT_CONN 0x5302 69#define APM_FUNC_32BIT_CONN 0x5303 70#define APM_FUNC_DISCONN 0x5304 71#define APM_FUNC_IDLE 0x5305 72#define APM_FUNC_BUSY 0x5306 73#define APM_FUNC_SET_STATE 0x5307 74#define APM_FUNC_ENABLE_PM 0x5308 75#define APM_FUNC_RESTORE_BIOS 0x5309 76#define APM_FUNC_GET_STATUS 0x530a 77#define APM_FUNC_GET_EVENT 0x530b 78#define APM_FUNC_GET_STATE 0x530c 79#define APM_FUNC_ENABLE_DEV_PM 0x530d 80#define APM_FUNC_VERSION 0x530e 81#define APM_FUNC_ENGAGE_PM 0x530f 82#define APM_FUNC_GET_CAP 0x5310 83#define APM_FUNC_RESUME_TIMER 0x5311 84#define APM_FUNC_RESUME_ON_RING 0x5312 85#define APM_FUNC_TIMER 0x5313 86 87/* 88 * Function code for APM_FUNC_RESUME_TIMER 89 */ 90#define APM_FUNC_DISABLE_TIMER 0 91#define APM_FUNC_GET_TIMER 1 92#define APM_FUNC_SET_TIMER 2 93 94/* 95 * Function code for APM_FUNC_RESUME_ON_RING 96 */ 97#define APM_FUNC_DISABLE_RING 0 98#define APM_FUNC_ENABLE_RING 1 99#define APM_FUNC_GET_RING 2 100 101/* 102 * Function code for APM_FUNC_TIMER_STATUS 103 */ 104#define APM_FUNC_TIMER_DISABLE 0 105#define APM_FUNC_TIMER_ENABLE 1 106#define APM_FUNC_TIMER_GET 2 107 108/* 109 * in arch/i386/kernel/setup.c 110 */ 111extern struct apm_info apm_info; 112 113#endif /* __KERNEL__ */ 114 115/* 116 * Power states 117 */ 118#define APM_STATE_READY 0x0000 119#define APM_STATE_STANDBY 0x0001 120#define APM_STATE_SUSPEND 0x0002 121#define APM_STATE_OFF 0x0003 122#define APM_STATE_BUSY 0x0004 123#define APM_STATE_REJECT 0x0005 124#define APM_STATE_OEM_SYS 0x0020 125#define APM_STATE_OEM_DEV 0x0040 126 127#define APM_STATE_DISABLE 0x0000 128#define APM_STATE_ENABLE 0x0001 129 130#define APM_STATE_DISENGAGE 0x0000 131#define APM_STATE_ENGAGE 0x0001 132 133/* 134 * Events (results of Get PM Event) 135 */ 136#define APM_SYS_STANDBY 0x0001 137#define APM_SYS_SUSPEND 0x0002 138#define APM_NORMAL_RESUME 0x0003 139#define APM_CRITICAL_RESUME 0x0004 140#define APM_LOW_BATTERY 0x0005 141#define APM_POWER_STATUS_CHANGE 0x0006 142#define APM_UPDATE_TIME 0x0007 143#define APM_CRITICAL_SUSPEND 0x0008 144#define APM_USER_STANDBY 0x0009 145#define APM_USER_SUSPEND 0x000a 146#define APM_STANDBY_RESUME 0x000b 147#define APM_CAPABILITY_CHANGE 0x000c 148 149/* 150 * Error codes 151 */ 152#define APM_SUCCESS 0x00 153#define APM_DISABLED 0x01 154#define APM_CONNECTED 0x02 155#define APM_NOT_CONNECTED 0x03 156#define APM_16_CONNECTED 0x05 157#define APM_16_UNSUPPORTED 0x06 158#define APM_32_CONNECTED 0x07 159#define APM_32_UNSUPPORTED 0x08 160#define APM_BAD_DEVICE 0x09 161#define APM_BAD_PARAM 0x0a 162#define APM_NOT_ENGAGED 0x0b 163#define APM_BAD_FUNCTION 0x0c 164#define APM_RESUME_DISABLED 0x0d 165#define APM_NO_ERROR 0x53 166#define APM_BAD_STATE 0x60 167#define APM_NO_EVENTS 0x80 168#define APM_NOT_PRESENT 0x86 169 170/* 171 * APM Device IDs 172 */ 173#define APM_DEVICE_BIOS 0x0000 174#define APM_DEVICE_ALL 0x0001 175#define APM_DEVICE_DISPLAY 0x0100 176#define APM_DEVICE_STORAGE 0x0200 177#define APM_DEVICE_PARALLEL 0x0300 178#define APM_DEVICE_SERIAL 0x0400 179#define APM_DEVICE_NETWORK 0x0500 180#define APM_DEVICE_PCMCIA 0x0600 181#define APM_DEVICE_BATTERY 0x8000 182#define APM_DEVICE_OEM 0xe000 183#define APM_DEVICE_OLD_ALL 0xffff 184#define APM_DEVICE_CLASS 0x00ff 185#define APM_DEVICE_MASK 0xff00 186 187#ifdef __KERNEL__ 188/* 189 * This is the "All Devices" ID communicated to the BIOS 190 */ 191#define APM_DEVICE_BALL ((apm_info.connection_version > 0x0100) ? \ 192 APM_DEVICE_ALL : APM_DEVICE_OLD_ALL) 193#endif 194 195/* 196 * Battery status 197 */ 198#define APM_MAX_BATTERIES 2 199 200/* 201 * APM defined capability bit flags 202 */ 203#define APM_CAP_GLOBAL_STANDBY 0x0001 204#define APM_CAP_GLOBAL_SUSPEND 0x0002 205#define APM_CAP_RESUME_STANDBY_TIMER 0x0004 /* Timer resume from standby */ 206#define APM_CAP_RESUME_SUSPEND_TIMER 0x0008 /* Timer resume from suspend */ 207#define APM_CAP_RESUME_STANDBY_RING 0x0010 /* Resume on Ring fr standby */ 208#define APM_CAP_RESUME_SUSPEND_RING 0x0020 /* Resume on Ring fr suspend */ 209#define APM_CAP_RESUME_STANDBY_PCMCIA 0x0040 /* Resume on PCMCIA Ring */ 210#define APM_CAP_RESUME_SUSPEND_PCMCIA 0x0080 /* Resume on PCMCIA Ring */ 211 212/* 213 * ioctl operations 214 */ 215#include <linux/ioctl.h> 216 217#define APM_IOC_STANDBY _IO('A', 1) 218#define APM_IOC_SUSPEND _IO('A', 2) 219 220#endif /* LINUX_APM_H */ 221