linux-old/include/linux/apm_bios.h
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   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
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