62 lines · c
1/* SPDX-License-Identifier: GPL-2.0-only */2/* -*- linux-c -*-3 *4 * (C) 2003 zecke@handhelds.org5 *6 * based on arch/arm/kernel/apm.c7 * factor out the information needed by architectures to provide8 * apm status9 */10#ifndef __LINUX_APM_EMULATION_H11#define __LINUX_APM_EMULATION_H12 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 022#define APM_AC_ONLINE 123#define APM_AC_BACKUP 224#define APM_AC_UNKNOWN 0xff25 26 unsigned char battery_status;27#define APM_BATTERY_STATUS_HIGH 028#define APM_BATTERY_STATUS_LOW 129#define APM_BATTERY_STATUS_CRITICAL 230#define APM_BATTERY_STATUS_CHARGING 331#define APM_BATTERY_STATUS_NOT_PRESENT 432#define APM_BATTERY_STATUS_UNKNOWN 0xff33 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 0xff41 42 int battery_life;43 int time;44 int units;45#define APM_UNITS_MINS 046#define APM_UNITS_SECS 147#define APM_UNITS_UNKNOWN -148 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