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TOMOYO Linux Cross Reference
Linux/include/linux/apm-emulation.h

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  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 

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