2 * Include file for the interface to an APM BIOS
3 * Copyright 1994-2001 Stephen Rothwell (sfr@canb.auug.org.au)
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2, or (at your option) any
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
18 #include <uapi/linux/apm_bios.h>
21 #define APM_CS (GDT_ENTRY_APMBIOS_BASE * 8)
22 #define APM_CS_16 (APM_CS + 8)
23 #define APM_DS (APM_CS_16 + 8)
25 /* Results of APM Installation Check */
26 #define APM_16_BIT_SUPPORT 0x0001
27 #define APM_32_BIT_SUPPORT 0x0002
28 #define APM_IDLE_SLOWS_CLOCK 0x0004
29 #define APM_BIOS_DISABLED 0x0008
30 #define APM_BIOS_DISENGAGED 0x0010
33 * Data for APM that is persistent across module unload/load
36 struct apm_bios_info bios;
37 unsigned short connection_version;
38 int get_power_status_broken;
39 int get_power_status_swabinminutes;
42 int realmode_power_off;
47 * The APM function codes
49 #define APM_FUNC_INST_CHECK 0x5300
50 #define APM_FUNC_REAL_CONN 0x5301
51 #define APM_FUNC_16BIT_CONN 0x5302
52 #define APM_FUNC_32BIT_CONN 0x5303
53 #define APM_FUNC_DISCONN 0x5304
54 #define APM_FUNC_IDLE 0x5305
55 #define APM_FUNC_BUSY 0x5306
56 #define APM_FUNC_SET_STATE 0x5307
57 #define APM_FUNC_ENABLE_PM 0x5308
58 #define APM_FUNC_RESTORE_BIOS 0x5309
59 #define APM_FUNC_GET_STATUS 0x530a
60 #define APM_FUNC_GET_EVENT 0x530b
61 #define APM_FUNC_GET_STATE 0x530c
62 #define APM_FUNC_ENABLE_DEV_PM 0x530d
63 #define APM_FUNC_VERSION 0x530e
64 #define APM_FUNC_ENGAGE_PM 0x530f
65 #define APM_FUNC_GET_CAP 0x5310
66 #define APM_FUNC_RESUME_TIMER 0x5311
67 #define APM_FUNC_RESUME_ON_RING 0x5312
68 #define APM_FUNC_TIMER 0x5313
71 * Function code for APM_FUNC_RESUME_TIMER
73 #define APM_FUNC_DISABLE_TIMER 0
74 #define APM_FUNC_GET_TIMER 1
75 #define APM_FUNC_SET_TIMER 2
78 * Function code for APM_FUNC_RESUME_ON_RING
80 #define APM_FUNC_DISABLE_RING 0
81 #define APM_FUNC_ENABLE_RING 1
82 #define APM_FUNC_GET_RING 2
85 * Function code for APM_FUNC_TIMER_STATUS
87 #define APM_FUNC_TIMER_DISABLE 0
88 #define APM_FUNC_TIMER_ENABLE 1
89 #define APM_FUNC_TIMER_GET 2
92 * in arch/i386/kernel/setup.c
94 extern struct apm_info apm_info;
97 * This is the "All Devices" ID communicated to the BIOS
99 #define APM_DEVICE_BALL ((apm_info.connection_version > 0x0100) ? \
100 APM_DEVICE_ALL : APM_DEVICE_OLD_ALL)
101 #endif /* LINUX_APM_H */