add alarm
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2375 bbd45198-f89e-11dd-88c7-29a3b14d5316
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components/drivers/include/drivers/alarm.h
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74
components/drivers/include/drivers/alarm.h
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/*
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* File : alarm.h
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rt-thread.org/license/LICENSE
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*
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* Change Logs:
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* Date Author Notes
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* 2012-10-27 heyuanjie87 first version.
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*/
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#ifndef __ALARM_H__
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#define __ALARM_H__
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#include <time.h>
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#define RT_ALARM_TM_NOW -1 /* set the alarm tm_day,tm_mon,tm_sec,ect to now.we also call it "don't care" value */
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/* alarm flags */
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#define RT_ALARM_ONESHOT 0x000 /* only alarm onece */
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#define RT_ALARM_DAILY 0x100 /* alarm everyday */
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#define RT_ALARM_WEEKLY 0x200 /* alarm weekly at Monday or Friday etc. */
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#define RT_ALARM_MONTHLY 0x400 /* alarm monthly at someday */
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#define RT_ALARM_YAERLY 0x800 /* alarm yearly at a certain date */
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#define RT_ALARM_MODIFY 1 /* modify alarm time or alarm flag */
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typedef struct rt_alarm *rt_alarm_t;
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typedef void (*rt_alarm_callback_t)(rt_alarm_t alarm, time_t timestamp);
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/* used for low level RTC driver */
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struct rt_rtc_wkalarm
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{
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rt_bool_t enable; /* 0 = alarm disabled, 1 = alarm enabled */
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rt_int32_t tm_sec; /* alarm at tm_sec */
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rt_int32_t tm_min; /* alarm at tm_min */
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rt_int32_t tm_hour; /* alarm at tm_hour */
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};
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struct rt_alarm
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{
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rt_list_t list;
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rt_uint32_t flag;
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rt_alarm_callback_t callback;
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struct tm wktime;
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};
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struct rt_alarm_setup
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{
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rt_uint32_t flag; /* alarm flag */
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struct tm wktime; /* when will the alarm wake up user */
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};
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struct rt_alarm_container
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{
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rt_list_t head;
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struct rt_mutex mutex;
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struct rt_event event;
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struct rt_alarm *current;
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};
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rt_alarm_t rt_alarm_create(rt_alarm_callback_t callback, struct rt_alarm_setup *setup);
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rt_err_t rt_alarm_control(rt_alarm_t alarm, rt_uint8_t cmd, void *arg);
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void rt_alarm_update(rt_device_t dev, rt_uint32_t event);
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rt_err_t rt_alarm_delete(rt_alarm_t alarm);
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rt_err_t rt_alarm_start(rt_alarm_t alarm);
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rt_err_t rt_alarm_stop(rt_alarm_t alarm);
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void rt_alarm_system_init(void);
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#endif /* __ALARM_H__ */
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