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_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 29 struct 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 */ 51 struct 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 */ 110 extern 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