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 19typedef unsigned short apm_event_t; 20typedef unsigned short apm_eventinfo_t; 21 22#ifdef __KERNEL__ 23 24#define APM_40 0x40 25#define APM_CS (APM_40 + 8) 26#define APM_CS_16 (APM_CS + 8) 27#define APM_DS (APM_CS_16 + 8) 28 29struct apm_bios_info { 30 unsigned short version; 31 unsigned short cseg; 32 unsigned long offset; 33 unsigned short cseg_16; 34 unsigned short dseg; 35 unsigned short flags; 36 unsigned short cseg_len; 37 unsigned short cseg_16_len; 38 unsigned short dseg_len; 39}; 40 41/* Results of APM Installation Check */ 42#define APM_16_BIT_SUPPORT 0x0001 43#define APM_32_BIT_SUPPORT 0x0002 44#define APM_IDLE_SLOWS_CLOCK 0x0004 45#define APM_BIOS_DISABLED 0x0008 46#define APM_BIOS_DISENGAGED 0x0010 47 48/* 49 * Data for APM that is persistant across module unload/load 50 */ 51struct apm_info { 52 struct apm_bios_info bios; 53 unsigned short connection_version; 54 int get_power_status_broken; 55 int get_power_status_swabinminutes; 56 int allow_ints; 57 int forbid_idle; 58 int realmode_power_off; 59 int disabled; 60}; 61 62/* 63 * The APM function codes 64 */ 65#define APM_FUNC_INST_CHECK 0x5300 66#define APM_FUNC_REAL_CONN 0x5301 67#define APM_FUNC_16BIT_CONN 0x5302 68#define APM_FUNC_32BIT_CONN 0x5303 69#define APM_FUNC_DISCONN 0x5304 70#define APM_FUNC_IDLE 0x5305 71#define APM_FUNC_BUSY 0x5306 72#define APM_FUNC_SET_STATE 0x5307 73#define APM_FUNC_ENABLE_PM 0x5308 74#define APM_FUNC_RESTORE_BIOS 0x5309 75#define APM_FUNC_GET_STATUS 0x530a 76#define APM_FUNC_GET_EVENT 0x530b 77#define APM_FUNC_GET_STATE 0x530c 78#define APM_FUNC_ENABLE_DEV_PM 0x530d 79#define APM_FUNC_VERSION 0x530e 80#define APM_FUNC_ENGAGE_PM 0x530f 81#define APM_FUNC_GET_CAP 0x5310 82#define APM_FUNC_RESUME_TIMER 0x5311 83#define APM_FUNC_RESUME_ON_RING 0x5312 84#define APM_FUNC_TIMER 0x5313 85 86/* 87 * Function code for APM_FUNC_RESUME_TIMER 88 */ 89#define APM_FUNC_DISABLE_TIMER 0 90#define APM_FUNC_GET_TIMER 1 91#define APM_FUNC_SET_TIMER 2 92 93/* 94 * Function code for APM_FUNC_RESUME_ON_RING 95 */ 96#define APM_FUNC_DISABLE_RING 0 97#define APM_FUNC_ENABLE_RING 1 98#define APM_FUNC_GET_RING 2 99 100/* 101 * Function code for APM_FUNC_TIMER_STATUS 102 */ 103#define APM_FUNC_TIMER_DISABLE 0 104#define APM_FUNC_TIMER_ENABLE 1 105#define APM_FUNC_TIMER_GET 2 106 107/* 108 * in arch/i386/kernel/setup.c 109 */ 110extern struct apm_info apm_info; 111 112#endif /* __KERNEL__ */ 113 114/* 115 * Power states 116 */ 117#define APM_STATE_READY 0x0000 118#define APM_STATE_STANDBY 0x0001 119#define APM_STATE_SUSPEND 0x0002 120#define APM_STATE_OFF 0x0003 121#define APM_STATE_BUSY 0x0004 122#define APM_STATE_REJECT 0x0005 123#define APM_STATE_OEM_SYS 0x0020 124#define APM_STATE_OEM_DEV 0x0040 125 126#define APM_STATE_DISABLE 0x0000 127#define APM_STATE_ENABLE 0x0001 128 129#define APM_STATE_DISENGAGE 0x0000 130#define APM_STATE_ENGAGE 0x0001 131 132/* 133 * Events (results of Get PM Event) 134 */ 135#define APM_SYS_STANDBY 0x0001 136#define APM_SYS_SUSPEND 0x0002 137#define APM_NORMAL_RESUME 0x0003 138#define APM_CRITICAL_RESUME 0x0004 139#define APM_LOW_BATTERY 0x0005 140#define APM_POWER_STATUS_CHANGE 0x0006 141#define APM_UPDATE_TIME 0x0007 142#define APM_CRITICAL_SUSPEND 0x0008 143#define APM_USER_STANDBY 0x0009 144#define APM_USER_SUSPEND 0x000a 145#define APM_STANDBY_RESUME 0x000b 146#define APM_CAPABILITY_CHANGE 0x000c 147 148/* 149 * Error codes 150 */ 151#define APM_SUCCESS 0x00 152#define APM_DISABLED 0x01 153#define APM_CONNECTED 0x02 154#define APM_NOT_CONNECTED 0x03 155#define APM_16_CONNECTED 0x05 156#define APM_16_UNSUPPORTED 0x06 157#define APM_32_CONNECTED 0x07 158#define APM_32_UNSUPPORTED 0x08 159#define APM_BAD_DEVICE 0x09 160#define APM_BAD_PARAM 0x0a 161#define APM_NOT_ENGAGED 0x0b 162#define APM_BAD_FUNCTION 0x0c 163#define APM_RESUME_DISABLED 0x0d 164#define APM_NO_ERROR 0x53 165#define APM_BAD_STATE 0x60 166#define APM_NO_EVENTS 0x80 167#define APM_NOT_PRESENT 0x86 168 169/* 170 * APM Device IDs 171 */ 172#define APM_DEVICE_BIOS 0x0000 173#define APM_DEVICE_ALL 0x0001 174#define APM_DEVICE_DISPLAY 0x0100 175#define APM_DEVICE_STORAGE 0x0200 176#define APM_DEVICE_PARALLEL 0x0300 177#define APM_DEVICE_SERIAL 0x0400 178#define APM_DEVICE_NETWORK 0x0500 179#define APM_DEVICE_PCMCIA 0x0600 180#define APM_DEVICE_BATTERY 0x8000 181#define APM_DEVICE_OEM 0xe000 182#define APM_DEVICE_OLD_ALL 0xffff 183#define APM_DEVICE_CLASS 0x00ff 184#define APM_DEVICE_MASK 0xff00 185 186#ifdef __KERNEL__ 187/* 188 * This is the "All Devices" ID communicated to the BIOS 189 */ 190#define APM_DEVICE_BALL ((apm_info.connection_version > 0x0100) ? \ 191 APM_DEVICE_ALL : APM_DEVICE_OLD_ALL) 192#endif 193 194/* 195 * Battery status 196 */ 197#define APM_MAX_BATTERIES 2 198 199/* 200 * APM defined capability bit flags 201 */ 202#define APM_CAP_GLOBAL_STANDBY 0x0001 203#define APM_CAP_GLOBAL_SUSPEND 0x0002 204#define APM_CAP_RESUME_STANDBY_TIMER 0x0004 /* Timer resume from standby */ 205#define APM_CAP_RESUME_SUSPEND_TIMER 0x0008 /* Timer resume from suspend */ 206#define APM_CAP_RESUME_STANDBY_RING 0x0010 /* Resume on Ring fr standby */ 207#define APM_CAP_RESUME_SUSPEND_RING 0x0020 /* Resume on Ring fr suspend */ 208#define APM_CAP_RESUME_STANDBY_PCMCIA 0x0040 /* Resume on PCMCIA Ring */ 209#define APM_CAP_RESUME_SUSPEND_PCMCIA 0x0080 /* Resume on PCMCIA Ring */ 210 211/* 212 * ioctl operations 213 */ 214#include <linux/ioctl.h> 215 216#define APM_IOC_STANDBY _IO('A', 1) 217#define APM_IOC_SUSPEND _IO('A', 2) 218 219#endif /* LINUX_APM_H */ 220