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