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