3 * (C) 2003 zecke@handhelds.org
7 * based on arch/arm/kernel/apm.c
8 * factor out the information needed by architectures to provide
11 #ifndef __LINUX_APM_EMULATION_H
12 #define __LINUX_APM_EMULATION_H
14 #include <linux/apm_bios.h>
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.
20 struct 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
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
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
46 #define APM_UNITS_MINS 0
47 #define APM_UNITS_SECS 1
48 #define APM_UNITS_UNKNOWN -1
53 * This allows machines to provide their own "apm get power status" function.
55 extern void (*apm_get_power_status)(struct apm_power_info *);
58 * Queue an event (APM_SYS_SUSPEND or APM_CRITICAL_SUSPEND)
60 void apm_queue_event(apm_event_t event);
62 #endif /* __LINUX_APM_EMULATION_H */