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/*
ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/**
* @file evtimer.h
* @brief Events Generator Timer structures and macros.
*
* @addtogroup event_timer
* @{
*/
#ifndef EVTIMER_H
#define EVTIMER_H
/*===========================================================================*/
/* Module constants. */
/*===========================================================================*/
/*===========================================================================*/
/* Module pre-compile time settings. */
/*===========================================================================*/
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
/*
* Module dependencies check.
*/
#if !CH_CFG_USE_EVENTS
#error "Event Timers require CH_CFG_USE_EVENTS"
#endif
/*===========================================================================*/
/* Module data structures and types. */
/*===========================================================================*/
/**
* @brief Type of a event timer structure.
*/
typedef struct {
virtual_timer_t et_vt;
event_source_t et_es;
systime_t et_interval;
} event_timer_t;
/*===========================================================================*/
/* Module macros. */
/*===========================================================================*/
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
void evtObjectInit(event_timer_t *etp, systime_t time);
void evtStart(event_timer_t *etp);
#ifdef __cplusplus
}
#endif
/*===========================================================================*/
/* Module inline functions. */
/*===========================================================================*/
/**
* @brief Stops the timer.
* @details If the timer was already stopped then the function has no effect.
*
* @param[in] etp pointer to an initialized @p event_timer_t structure.
*/
static inline void evtStop(event_timer_t *etp) {
chVTReset(&etp->et_vt);
}
#endif /* EVTIMER_H */
/** @} */
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