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1 | /* |
2 | * Include file for the interface to an APM BIOS |
3 | * Copyright 1994-2001 Stephen Rothwell (sfr@canb.auug.org.au) |
4 | * |
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 |
8 | * later version. |
9 | * |
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. |
14 | */ |
15 | #ifndef _LINUX_APM_H |
16 | #define _LINUX_APM_H |
17 | |
18 | #include <uapi/linux/apm_bios.h> |
19 | |
20 | |
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) |
24 | |
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 |
31 | |
32 | /* |
33 | * Data for APM that is persistent across module unload/load |
34 | */ |
35 | struct apm_info { |
36 | struct apm_bios_info bios; |
37 | unsigned short connection_version; |
38 | int get_power_status_broken; |
39 | int get_power_status_swabinminutes; |
40 | int allow_ints; |
41 | int forbid_idle; |
42 | int realmode_power_off; |
43 | int disabled; |
44 | }; |
45 | |
46 | /* |
47 | * The APM function codes |
48 | */ |
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 |
69 | |
70 | /* |
71 | * Function code for APM_FUNC_RESUME_TIMER |
72 | */ |
73 | #define APM_FUNC_DISABLE_TIMER 0 |
74 | #define APM_FUNC_GET_TIMER 1 |
75 | #define APM_FUNC_SET_TIMER 2 |
76 | |
77 | /* |
78 | * Function code for APM_FUNC_RESUME_ON_RING |
79 | */ |
80 | #define APM_FUNC_DISABLE_RING 0 |
81 | #define APM_FUNC_ENABLE_RING 1 |
82 | #define APM_FUNC_GET_RING 2 |
83 | |
84 | /* |
85 | * Function code for APM_FUNC_TIMER_STATUS |
86 | */ |
87 | #define APM_FUNC_TIMER_DISABLE 0 |
88 | #define APM_FUNC_TIMER_ENABLE 1 |
89 | #define APM_FUNC_TIMER_GET 2 |
90 | |
91 | /* |
92 | * in arch/i386/kernel/setup.c |
93 | */ |
94 | extern struct apm_info apm_info; |
95 | |
96 | /* |
97 | * This is the "All Devices" ID communicated to the BIOS |
98 | */ |
99 | #define APM_DEVICE_BALL ((apm_info.connection_version > 0x0100) ? \ |
100 | APM_DEVICE_ALL : APM_DEVICE_OLD_ALL) |
101 | #endif /* LINUX_APM_H */ |
102 |
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