1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
2 /*
3  * Include file for the interface to an APM BIOS
4  * Copyright 1994-2001 Stephen Rothwell (sfr@canb.auug.org.au)
5  *
6  * This program is free software; you can redistribute it and/or modify it
7  * under the terms of the GNU General Public License as published by the
8  * Free Software Foundation; either version 2, or (at your option) any
9  * later version.
10  *
11  * This program is distributed in the hope that it will be useful, but
12  * WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * General Public License for more details.
15  */
16 #ifndef _UAPI_LINUX_APM_H
17 #define _UAPI_LINUX_APM_H
18 
19 
20 #include <linux/types.h>
21 
22 typedef unsigned short	apm_event_t;
23 typedef unsigned short	apm_eventinfo_t;
24 
25 struct apm_bios_info {
26 	__u16	version;
27 	__u16	cseg;
28 	__u32	offset;
29 	__u16	cseg_16;
30 	__u16	dseg;
31 	__u16	flags;
32 	__u16	cseg_len;
33 	__u16	cseg_16_len;
34 	__u16	dseg_len;
35 };
36 
37 
38 /*
39  * Power states
40  */
41 #define APM_STATE_READY		0x0000
42 #define APM_STATE_STANDBY	0x0001
43 #define APM_STATE_SUSPEND	0x0002
44 #define APM_STATE_OFF		0x0003
45 #define APM_STATE_BUSY		0x0004
46 #define APM_STATE_REJECT	0x0005
47 #define APM_STATE_OEM_SYS	0x0020
48 #define APM_STATE_OEM_DEV	0x0040
49 
50 #define APM_STATE_DISABLE	0x0000
51 #define APM_STATE_ENABLE	0x0001
52 
53 #define APM_STATE_DISENGAGE	0x0000
54 #define APM_STATE_ENGAGE	0x0001
55 
56 /*
57  * Events (results of Get PM Event)
58  */
59 #define APM_SYS_STANDBY		0x0001
60 #define APM_SYS_SUSPEND		0x0002
61 #define APM_NORMAL_RESUME	0x0003
62 #define APM_CRITICAL_RESUME	0x0004
63 #define APM_LOW_BATTERY		0x0005
64 #define APM_POWER_STATUS_CHANGE	0x0006
65 #define APM_UPDATE_TIME		0x0007
66 #define APM_CRITICAL_SUSPEND	0x0008
67 #define APM_USER_STANDBY	0x0009
68 #define APM_USER_SUSPEND	0x000a
69 #define APM_STANDBY_RESUME	0x000b
70 #define APM_CAPABILITY_CHANGE	0x000c
71 #define APM_USER_HIBERNATION	0x000d
72 #define APM_HIBERNATION_RESUME	0x000e
73 
74 /*
75  * Error codes
76  */
77 #define APM_SUCCESS		0x00
78 #define APM_DISABLED		0x01
79 #define APM_CONNECTED		0x02
80 #define APM_NOT_CONNECTED	0x03
81 #define APM_16_CONNECTED	0x05
82 #define APM_16_UNSUPPORTED	0x06
83 #define APM_32_CONNECTED	0x07
84 #define APM_32_UNSUPPORTED	0x08
85 #define APM_BAD_DEVICE		0x09
86 #define APM_BAD_PARAM		0x0a
87 #define APM_NOT_ENGAGED		0x0b
88 #define APM_BAD_FUNCTION	0x0c
89 #define APM_RESUME_DISABLED	0x0d
90 #define APM_NO_ERROR		0x53
91 #define APM_BAD_STATE		0x60
92 #define APM_NO_EVENTS		0x80
93 #define APM_NOT_PRESENT		0x86
94 
95 /*
96  * APM Device IDs
97  */
98 #define APM_DEVICE_BIOS		0x0000
99 #define APM_DEVICE_ALL		0x0001
100 #define APM_DEVICE_DISPLAY	0x0100
101 #define APM_DEVICE_STORAGE	0x0200
102 #define APM_DEVICE_PARALLEL	0x0300
103 #define APM_DEVICE_SERIAL	0x0400
104 #define APM_DEVICE_NETWORK	0x0500
105 #define APM_DEVICE_PCMCIA	0x0600
106 #define APM_DEVICE_BATTERY	0x8000
107 #define APM_DEVICE_OEM		0xe000
108 #define APM_DEVICE_OLD_ALL	0xffff
109 #define APM_DEVICE_CLASS	0x00ff
110 #define APM_DEVICE_MASK		0xff00
111 
112 
113 /*
114  * Battery status
115  */
116 #define APM_MAX_BATTERIES	2
117 
118 /*
119  * APM defined capability bit flags
120  */
121 #define APM_CAP_GLOBAL_STANDBY		0x0001
122 #define APM_CAP_GLOBAL_SUSPEND		0x0002
123 #define APM_CAP_RESUME_STANDBY_TIMER	0x0004 /* Timer resume from standby */
124 #define APM_CAP_RESUME_SUSPEND_TIMER	0x0008 /* Timer resume from suspend */
125 #define APM_CAP_RESUME_STANDBY_RING	0x0010 /* Resume on Ring fr standby */
126 #define APM_CAP_RESUME_SUSPEND_RING	0x0020 /* Resume on Ring fr suspend */
127 #define APM_CAP_RESUME_STANDBY_PCMCIA	0x0040 /* Resume on PCMCIA Ring	*/
128 #define APM_CAP_RESUME_SUSPEND_PCMCIA	0x0080 /* Resume on PCMCIA Ring	*/
129 
130 /*
131  * ioctl operations
132  */
133 #include <linux/ioctl.h>
134 
135 #define APM_IOC_STANDBY		_IO('A', 1)
136 #define APM_IOC_SUSPEND		_IO('A', 2)
137 
138 #endif /* _UAPI_LINUX_APM_H */
139