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 21 typedef unsigned short apm_event_t; 22 typedef unsigned short apm_eventinfo_t; 23 24 struct 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 */ 52 struct 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 */ 111 extern 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