include/asm-arm/apm.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  *
  12  */
  13 #ifndef ARM_ASM_SA1100_APM_H
  14 #define ARM_ASM_SA1100_APM_H
  15
  16 #include <linux/apm_bios.h>
  17
  18 /*
  19  * This structure gets filled in by the machine specific 'get_power_status'
  20  * implementation.  Any fields which are not set default to a safe value.
  21  */
  22 struct apm_power_info {
  23         unsigned char   ac_line_status;
  24 #define APM_AC_OFFLINE                  0
  25 #define APM_AC_ONLINE                   1
  26 #define APM_AC_BACKUP                   2
  27 #define APM_AC_UNKNOWN                  0xff
  28
  29         unsigned char   battery_status;
  30 #define APM_BATTERY_STATUS_HIGH         0
  31 #define APM_BATTERY_STATUS_LOW          1
  32 #define APM_BATTERY_STATUS_CRITICAL     2
  33 #define APM_BATTERY_STATUS_CHARGING     3
  34 #define APM_BATTERY_STATUS_NOT_PRESENT  4
  35 #define APM_BATTERY_STATUS_UNKNOWN      0xff
  36
  37         unsigned char   battery_flag;
  38 #define APM_BATTERY_FLAG_HIGH           (1 << 0)
  39 #define APM_BATTERY_FLAG_LOW            (1 << 1)
  40 #define APM_BATTERY_FLAG_CRITICAL       (1 << 2)
  41 #define APM_BATTERY_FLAG_CHARGING       (1 << 3)
  42 #define APM_BATTERY_FLAG_NOT_PRESENT    (1 << 7)
  43 #define APM_BATTERY_FLAG_UNKNOWN        0xff
  44
  45         int             battery_life;
  46         int             time;
  47         int             units;
  48 #define APM_UNITS_MINS                  0
  49 #define APM_UNITS_SECS                  1
  50 #define APM_UNITS_UNKNOWN               -1
  51
  52 };
  53
  54 /*
  55  * This allows machines to provide their own "apm get power status" function.
  56  */
  57 extern void (*apm_get_power_status)(struct apm_power_info *);
  58
  59 /*
  60  * Queue an event (APM_SYS_SUSPEND or APM_CRITICAL_SUSPEND)
  61  */
  62 void apm_queue_event(apm_event_t event);
  63
  64 #endif