5 * Include file for the interface to an APM BIOS
6 * Copyright 1994-2001 Stephen Rothwell (sfr@canb.auug.org.au)
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
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.
19 #include <linux/types.h>
21 typedef unsigned short apm_event_t;
22 typedef unsigned short apm_eventinfo_t;
24 struct apm_bios_info {
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)
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
50 * Data for APM that is persistent across module unload/load
53 struct apm_bios_info bios;
54 unsigned short connection_version;
55 int get_power_status_broken;
56 int get_power_status_swabinminutes;
59 int realmode_power_off;
64 * The APM function codes
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
88 * Function code for APM_FUNC_RESUME_TIMER
90 #define APM_FUNC_DISABLE_TIMER 0
91 #define APM_FUNC_GET_TIMER 1
92 #define APM_FUNC_SET_TIMER 2
95 * Function code for APM_FUNC_RESUME_ON_RING
97 #define APM_FUNC_DISABLE_RING 0
98 #define APM_FUNC_ENABLE_RING 1
99 #define APM_FUNC_GET_RING 2
102 * Function code for APM_FUNC_TIMER_STATUS
104 #define APM_FUNC_TIMER_DISABLE 0
105 #define APM_FUNC_TIMER_ENABLE 1
106 #define APM_FUNC_TIMER_GET 2
109 * in arch/i386/kernel/setup.c
111 extern struct apm_info apm_info;
113 #endif /* __KERNEL__ */
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
127 #define APM_STATE_DISABLE 0x0000
128 #define APM_STATE_ENABLE 0x0001
130 #define APM_STATE_DISENGAGE 0x0000
131 #define APM_STATE_ENGAGE 0x0001
134 * Events (results of Get PM Event)
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
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
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
189 * This is the "All Devices" ID communicated to the BIOS
191 #define APM_DEVICE_BALL ((apm_info.connection_version > 0x0100) ? \
192 APM_DEVICE_ALL : APM_DEVICE_OLD_ALL)
198 #define APM_MAX_BATTERIES 2
201 * APM defined capability bit flags
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 */
215 #include <linux/ioctl.h>
217 #define APM_IOC_STANDBY _IO('A', 1)
218 #define APM_IOC_SUSPEND _IO('A', 2)
220 #endif /* LINUX_APM_H */