1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* -*- linux-c -*- |
3 | * |
4 | * (C) 2003 zecke@handhelds.org |
5 | * |
6 | * based on arch/arm/kernel/apm.c |
7 | * factor out the information needed by architectures to provide |
8 | * apm status |
9 | */ |
10 | #ifndef __LINUX_APM_EMULATION_H |
11 | #define __LINUX_APM_EMULATION_H |
12 | |
13 | #include <linux/apm_bios.h> |
14 | |
15 | /* |
16 | * This structure gets filled in by the machine specific 'get_power_status' |
17 | * implementation. Any fields which are not set default to a safe value. |
18 | */ |
19 | struct apm_power_info { |
20 | unsigned char ac_line_status; |
21 | #define APM_AC_OFFLINE 0 |
22 | #define APM_AC_ONLINE 1 |
23 | #define APM_AC_BACKUP 2 |
24 | #define APM_AC_UNKNOWN 0xff |
25 | |
26 | unsigned char battery_status; |
27 | #define APM_BATTERY_STATUS_HIGH 0 |
28 | #define APM_BATTERY_STATUS_LOW 1 |
29 | #define APM_BATTERY_STATUS_CRITICAL 2 |
30 | #define APM_BATTERY_STATUS_CHARGING 3 |
31 | #define APM_BATTERY_STATUS_NOT_PRESENT 4 |
32 | #define APM_BATTERY_STATUS_UNKNOWN 0xff |
33 | |
34 | unsigned char battery_flag; |
35 | #define APM_BATTERY_FLAG_HIGH (1 << 0) |
36 | #define APM_BATTERY_FLAG_LOW (1 << 1) |
37 | #define APM_BATTERY_FLAG_CRITICAL (1 << 2) |
38 | #define APM_BATTERY_FLAG_CHARGING (1 << 3) |
39 | #define APM_BATTERY_FLAG_NOT_PRESENT (1 << 7) |
40 | #define APM_BATTERY_FLAG_UNKNOWN 0xff |
41 | |
42 | int battery_life; |
43 | int time; |
44 | int units; |
45 | #define APM_UNITS_MINS 0 |
46 | #define APM_UNITS_SECS 1 |
47 | #define APM_UNITS_UNKNOWN -1 |
48 | |
49 | }; |
50 | |
51 | /* |
52 | * This allows machines to provide their own "apm get power status" function. |
53 | */ |
54 | extern void (*apm_get_power_status)(struct apm_power_info *); |
55 | |
56 | /* |
57 | * Queue an event (APM_SYS_SUSPEND or APM_CRITICAL_SUSPEND) |
58 | */ |
59 | void apm_queue_event(apm_event_t event); |
60 | |
61 | #endif /* __LINUX_APM_EMULATION_H */ |
62 | |