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