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/*
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 hal_wdg.c
* @brief WDG Driver code.
*
* @addtogroup WDG
* @{
*/
#include "hal.h"
#if (HAL_USE_WDG == TRUE) || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/**
* @brief WDG Driver initialization.
* @note This function is implicitly invoked by @p halInit(), there is
* no need to explicitly initialize the driver.
*
* @init
*/
void wdgInit(void) {
wdg_lld_init();
}
/**
* @brief Configures and activates the WDG peripheral.
*
* @param[in] wdgp pointer to the @p WDGDriver object
* @param[in] config pointer to the @p WDGConfig object
*
* @api
*/
void wdgStart(WDGDriver *wdgp, const WDGConfig *config) {
osalDbgCheck((wdgp != NULL) && (config != NULL));
osalSysLock();
osalDbgAssert((wdgp->state == WDG_STOP) || (wdgp->state == WDG_READY),
"invalid state");
wdgp->config = config;
wdg_lld_start(wdgp);
wdgp->state = WDG_READY;
osalSysUnlock();
}
/**
* @brief Deactivates the WDG peripheral.
*
* @param[in] wdgp pointer to the @p WDGDriver object
*
* @api
*/
void wdgStop(WDGDriver *wdgp) {
osalDbgCheck(wdgp != NULL);
osalSysLock();
osalDbgAssert((wdgp->state == WDG_STOP) || (wdgp->state == WDG_READY),
"invalid state");
wdg_lld_stop(wdgp);
wdgp->config = NULL;
wdgp->state = WDG_STOP;
osalSysUnlock();
}
/**
* @brief Resets WDG's counter.
*
* @param[in] wdgp pointer to the @p WDGDriver object
*
* @api
*/
void wdgReset(WDGDriver *wdgp) {
osalDbgCheck(wdgp != NULL);
osalSysLock();
osalDbgAssert(wdgp->state == WDG_READY, "not ready");
wdgResetI(wdgp);
osalSysUnlock();
}
#endif /* HAL_USE_WDG == TRUE */
/** @} */
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