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 */ 19struct 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 */ 54extern void (*apm_get_power_status)(struct apm_power_info *); 55 56/* 57 * Queue an event (APM_SYS_SUSPEND or APM_CRITICAL_SUSPEND) 58 */ 59void apm_queue_event(apm_event_t event); 60 61#endif /* __LINUX_APM_EMULATION_H */ 62