86 lines
3 KiB
C
86 lines
3 KiB
C
|
/*
|
||
|
|
ChibiOS - Copyright (C) 2006..2016 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.c
|
||
|
|
* @brief Events Generator Timer code.
|
||
|
|
*
|
||
|
|
* @addtogroup event_timer
|
||
|
|
* @{
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "ch.h"
|
||
|
|
#include "evtimer.h"
|
||
|
|
|
||
|
|
/*===========================================================================*/
|
||
|
|
/* Module local definitions. */
|
||
|
|
/*===========================================================================*/
|
||
|
|
|
||
|
|
/*===========================================================================*/
|
||
|
|
/* Module exported variables. */
|
||
|
|
/*===========================================================================*/
|
||
|
|
|
||
|
|
/*===========================================================================*/
|
||
|
|
/* Module local types. */
|
||
|
|
/*===========================================================================*/
|
||
|
|
|
||
|
|
/*===========================================================================*/
|
||
|
|
/* Module local variables. */
|
||
|
|
/*===========================================================================*/
|
||
|
|
|
||
|
|
/*===========================================================================*/
|
||
|
|
/* Module local functions. */
|
||
|
|
/*===========================================================================*/
|
||
|
|
|
||
|
|
static void tmrcb(void *p) {
|
||
|
|
event_timer_t *etp = p;
|
||
|
|
|
||
|
|
chSysLockFromISR();
|
||
|
|
chEvtBroadcastI(&etp->et_es);
|
||
|
|
chVTDoSetI(&etp->et_vt, etp->et_interval, tmrcb, etp);
|
||
|
|
chSysUnlockFromISR();
|
||
|
|
}
|
||
|
|
|
||
|
|
/*===========================================================================*/
|
||
|
|
/* Module exported functions. */
|
||
|
|
/*===========================================================================*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Initializes an @p event_timer_t structure.
|
||
|
|
*
|
||
|
|
* @param[out] etp the @p event_timer_t structure to be initialized
|
||
|
|
* @param[in] time the interval in system ticks
|
||
|
|
*/
|
||
|
|
void evtObjectInit(event_timer_t *etp, systime_t time) {
|
||
|
|
|
||
|
|
chEvtObjectInit(&etp->et_es);
|
||
|
|
chVTObjectInit(&etp->et_vt);
|
||
|
|
etp->et_interval = time;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Starts the timer
|
||
|
|
* @details If the timer was already running then the function has no effect.
|
||
|
|
*
|
||
|
|
* @param[in] etp pointer to an initialized @p event_timer_t structure.
|
||
|
|
*/
|
||
|
|
void evtStart(event_timer_t *etp) {
|
||
|
|
|
||
|
|
chVTSet(&etp->et_vt, etp->et_interval, tmrcb, etp);
|
||
|
|
}
|
||
|
|
|
||
|
|
/** @} */
|