1 /* SPDX-License-Identifier: GPL-2.0+ */
6 * Include file for the interface to an APM BIOS
7 * Copyright 1994-2001 Stephen Rothwell (sfr@canb.auug.org.au)
10 #include <linux/types.h>
12 typedef unsigned short apm_event_t;
13 typedef unsigned short apm_eventinfo_t;
15 struct apm_bios_info {
29 #define APM_CS (GDT_ENTRY_APMBIOS_BASE * 8)
30 #define APM_CS_16 (APM_CS + 8)
31 #define APM_DS (APM_CS_16 + 8)
33 /* Results of APM Installation Check */
34 #define APM_16_BIT_SUPPORT 0x0001
35 #define APM_32_BIT_SUPPORT 0x0002
36 #define APM_IDLE_SLOWS_CLOCK 0x0004
37 #define APM_BIOS_DISABLED 0x0008
38 #define APM_BIOS_DISENGAGED 0x0010
41 * Data for APM that is persistent across module unload/load
44 struct apm_bios_info bios;
45 unsigned short connection_version;
46 int get_power_status_broken;
47 int get_power_status_swabinminutes;
50 int realmode_power_off;
55 * The APM function codes
57 #define APM_FUNC_INST_CHECK 0x5300
58 #define APM_FUNC_REAL_CONN 0x5301
59 #define APM_FUNC_16BIT_CONN 0x5302
60 #define APM_FUNC_32BIT_CONN 0x5303
61 #define APM_FUNC_DISCONN 0x5304
62 #define APM_FUNC_IDLE 0x5305
63 #define APM_FUNC_BUSY 0x5306
64 #define APM_FUNC_SET_STATE 0x5307
65 #define APM_FUNC_ENABLE_PM 0x5308
66 #define APM_FUNC_RESTORE_BIOS 0x5309
67 #define APM_FUNC_GET_STATUS 0x530a
68 #define APM_FUNC_GET_EVENT 0x530b
69 #define APM_FUNC_GET_STATE 0x530c
70 #define APM_FUNC_ENABLE_DEV_PM 0x530d
71 #define APM_FUNC_VERSION 0x530e
72 #define APM_FUNC_ENGAGE_PM 0x530f
73 #define APM_FUNC_GET_CAP 0x5310
74 #define APM_FUNC_RESUME_TIMER 0x5311
75 #define APM_FUNC_RESUME_ON_RING 0x5312
76 #define APM_FUNC_TIMER 0x5313
79 * Function code for APM_FUNC_RESUME_TIMER
81 #define APM_FUNC_DISABLE_TIMER 0
82 #define APM_FUNC_GET_TIMER 1
83 #define APM_FUNC_SET_TIMER 2
86 * Function code for APM_FUNC_RESUME_ON_RING
88 #define APM_FUNC_DISABLE_RING 0
89 #define APM_FUNC_ENABLE_RING 1
90 #define APM_FUNC_GET_RING 2
93 * Function code for APM_FUNC_TIMER_STATUS
95 #define APM_FUNC_TIMER_DISABLE 0
96 #define APM_FUNC_TIMER_ENABLE 1
97 #define APM_FUNC_TIMER_GET 2
100 * in arch/i386/kernel/setup.c
102 extern struct apm_info apm_info;
104 #endif /* __KERNEL__ */
109 #define APM_STATE_READY 0x0000
110 #define APM_STATE_STANDBY 0x0001
111 #define APM_STATE_SUSPEND 0x0002
112 #define APM_STATE_OFF 0x0003
113 #define APM_STATE_BUSY 0x0004
114 #define APM_STATE_REJECT 0x0005
115 #define APM_STATE_OEM_SYS 0x0020
116 #define APM_STATE_OEM_DEV 0x0040
118 #define APM_STATE_DISABLE 0x0000
119 #define APM_STATE_ENABLE 0x0001
121 #define APM_STATE_DISENGAGE 0x0000
122 #define APM_STATE_ENGAGE 0x0001
125 * Events (results of Get PM Event)
127 #define APM_SYS_STANDBY 0x0001
128 #define APM_SYS_SUSPEND 0x0002
129 #define APM_NORMAL_RESUME 0x0003
130 #define APM_CRITICAL_RESUME 0x0004
131 #define APM_LOW_BATTERY 0x0005
132 #define APM_POWER_STATUS_CHANGE 0x0006
133 #define APM_UPDATE_TIME 0x0007
134 #define APM_CRITICAL_SUSPEND 0x0008
135 #define APM_USER_STANDBY 0x0009
136 #define APM_USER_SUSPEND 0x000a
137 #define APM_STANDBY_RESUME 0x000b
138 #define APM_CAPABILITY_CHANGE 0x000c
143 #define APM_SUCCESS 0x00
144 #define APM_DISABLED 0x01
145 #define APM_CONNECTED 0x02
146 #define APM_NOT_CONNECTED 0x03
147 #define APM_16_CONNECTED 0x05
148 #define APM_16_UNSUPPORTED 0x06
149 #define APM_32_CONNECTED 0x07
150 #define APM_32_UNSUPPORTED 0x08
151 #define APM_BAD_DEVICE 0x09
152 #define APM_BAD_PARAM 0x0a
153 #define APM_NOT_ENGAGED 0x0b
154 #define APM_BAD_FUNCTION 0x0c
155 #define APM_RESUME_DISABLED 0x0d
156 #define APM_NO_ERROR 0x53
157 #define APM_BAD_STATE 0x60
158 #define APM_NO_EVENTS 0x80
159 #define APM_NOT_PRESENT 0x86
164 #define APM_DEVICE_BIOS 0x0000
165 #define APM_DEVICE_ALL 0x0001
166 #define APM_DEVICE_DISPLAY 0x0100
167 #define APM_DEVICE_STORAGE 0x0200
168 #define APM_DEVICE_PARALLEL 0x0300
169 #define APM_DEVICE_SERIAL 0x0400
170 #define APM_DEVICE_NETWORK 0x0500
171 #define APM_DEVICE_PCMCIA 0x0600
172 #define APM_DEVICE_BATTERY 0x8000
173 #define APM_DEVICE_OEM 0xe000
174 #define APM_DEVICE_OLD_ALL 0xffff
175 #define APM_DEVICE_CLASS 0x00ff
176 #define APM_DEVICE_MASK 0xff00
180 * This is the "All Devices" ID communicated to the BIOS
182 #define APM_DEVICE_BALL ((apm_info.connection_version > 0x0100) ? \
183 APM_DEVICE_ALL : APM_DEVICE_OLD_ALL)
189 #define APM_MAX_BATTERIES 2
192 * APM defined capability bit flags
194 #define APM_CAP_GLOBAL_STANDBY 0x0001
195 #define APM_CAP_GLOBAL_SUSPEND 0x0002
196 #define APM_CAP_RESUME_STANDBY_TIMER 0x0004 /* Timer resume from standby */
197 #define APM_CAP_RESUME_SUSPEND_TIMER 0x0008 /* Timer resume from suspend */
198 #define APM_CAP_RESUME_STANDBY_RING 0x0010 /* Resume on Ring fr standby */
199 #define APM_CAP_RESUME_SUSPEND_RING 0x0020 /* Resume on Ring fr suspend */
200 #define APM_CAP_RESUME_STANDBY_PCMCIA 0x0040 /* Resume on PCMCIA Ring */
201 #define APM_CAP_RESUME_SUSPEND_PCMCIA 0x0080 /* Resume on PCMCIA Ring */
206 #include <linux/ioctl.h>
208 #define APM_IOC_STANDBY _IO('A', 1)
209 #define APM_IOC_SUSPEND _IO('A', 2)
211 #endif /* LINUX_APM_H */