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