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Ralf Baechle77269422007-02-09 17:08:57 +00001/* -*- linux-c -*-
2 *
3 * (C) 2003 zecke@handhelds.org
4 *
5 * GPL version 2
6 *
7 * based on arch/arm/kernel/apm.c
8 * factor out the information needed by architectures to provide
9 * apm status
10 */
11#ifndef __LINUX_APM_EMULATION_H
12#define __LINUX_APM_EMULATION_H
13
14#include <linux/apm_bios.h>
15
16/*
17 * This structure gets filled in by the machine specific 'get_power_status'
18 * implementation. Any fields which are not set default to a safe value.
19 */
20struct apm_power_info {
21 unsigned char ac_line_status;
22#define APM_AC_OFFLINE 0
23#define APM_AC_ONLINE 1
24#define APM_AC_BACKUP 2
25#define APM_AC_UNKNOWN 0xff
26
27 unsigned char battery_status;
28#define APM_BATTERY_STATUS_HIGH 0
29#define APM_BATTERY_STATUS_LOW 1
30#define APM_BATTERY_STATUS_CRITICAL 2
31#define APM_BATTERY_STATUS_CHARGING 3
32#define APM_BATTERY_STATUS_NOT_PRESENT 4
33#define APM_BATTERY_STATUS_UNKNOWN 0xff
34
35 unsigned char battery_flag;
36#define APM_BATTERY_FLAG_HIGH (1 << 0)
37#define APM_BATTERY_FLAG_LOW (1 << 1)
38#define APM_BATTERY_FLAG_CRITICAL (1 << 2)
39#define APM_BATTERY_FLAG_CHARGING (1 << 3)
40#define APM_BATTERY_FLAG_NOT_PRESENT (1 << 7)
41#define APM_BATTERY_FLAG_UNKNOWN 0xff
42
43 int battery_life;
44 int time;
45 int units;
46#define APM_UNITS_MINS 0
47#define APM_UNITS_SECS 1
48#define APM_UNITS_UNKNOWN -1
49
50};
51
52/*
53 * This allows machines to provide their own "apm get power status" function.
54 */
55extern void (*apm_get_power_status)(struct apm_power_info *);
56
57/*
58 * Queue an event (APM_SYS_SUSPEND or APM_CRITICAL_SUSPEND)
59 */
60void apm_queue_event(apm_event_t event);
61
62#endif /* __LINUX_APM_EMULATION_H */