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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 | ||
19 | typedef unsigned short apm_event_t; | |
20 | typedef unsigned short apm_eventinfo_t; | |
21 | ||
22 | #ifdef __KERNEL__ | |
23 | ||
4bf3b0bc PA |
24 | #include <linux/types.h> |
25 | ||
1da177e4 LT |
26 | #define APM_CS (GDT_ENTRY_APMBIOS_BASE * 8) |
27 | #define APM_CS_16 (APM_CS + 8) | |
28 | #define APM_DS (APM_CS_16 + 8) | |
29 | ||
30 | struct apm_bios_info { | |
4bf3b0bc PA |
31 | u16 version; |
32 | u16 cseg; | |
33 | u32 offset; | |
34 | u16 cseg_16; | |
35 | u16 dseg; | |
36 | u16 flags; | |
37 | u16 cseg_len; | |
38 | u16 cseg_16_len; | |
39 | u16 dseg_len; | |
1da177e4 LT |
40 | }; |
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 */ |