Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Rusty Russell | ee8e7cf | 2007-10-22 10:56:19 +1000 | [diff] [blame] | 19 | #include <linux/types.h> |
| 20 | |
Adam Jackson | 8d93662 | 2007-12-17 16:20:04 -0800 | [diff] [blame^] | 21 | typedef unsigned short apm_event_t; |
| 22 | typedef unsigned short apm_eventinfo_t; |
| 23 | |
Rusty Russell | ee8e7cf | 2007-10-22 10:56:19 +1000 | [diff] [blame] | 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 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 */ |