include/linux/apm-emulation.h

   1 /* -*- 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  */
  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
  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  */
  55 extern void (*apm_get_power_status)(struct apm_power_info *);
  56
  57 /*
  58  * Queue an event (APM_SYS_SUSPEND or APM_CRITICAL_SUSPEND)
  59  */
  60 void apm_queue_event(apm_event_t event);
  61
  62 #endif /* __LINUX_APM_EMULATION_H */