125 lines
3.4 KiB
C
125 lines
3.4 KiB
C
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/*
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ChibiOS - Copyright (C) 2006..2016 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 hal_wdg.c
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* @brief WDG Driver code.
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*
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* @addtogroup WDG
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* @{
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*/
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#include "hal.h"
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#if (HAL_USE_WDG == TRUE) || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Driver local definitions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported variables. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local variables. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local functions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported functions. */
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/*===========================================================================*/
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/**
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* @brief WDG Driver initialization.
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* @note This function is implicitly invoked by @p halInit(), there is
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* no need to explicitly initialize the driver.
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*
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* @init
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*/
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void wdgInit(void) {
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wdg_lld_init();
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}
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/**
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* @brief Configures and activates the WDG peripheral.
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*
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* @param[in] wdgp pointer to the @p WDGDriver object
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* @param[in] config pointer to the @p WDGConfig object
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*
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* @api
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*/
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void wdgStart(WDGDriver *wdgp, const WDGConfig *config) {
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osalDbgCheck((wdgp != NULL) && (config != NULL));
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osalSysLock();
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osalDbgAssert((wdgp->state == WDG_STOP) || (wdgp->state == WDG_READY),
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"invalid state");
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wdgp->config = config;
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wdg_lld_start(wdgp);
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wdgp->state = WDG_READY;
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osalSysUnlock();
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}
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/**
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* @brief Deactivates the WDG peripheral.
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*
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* @param[in] wdgp pointer to the @p WDGDriver object
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*
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* @api
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*/
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void wdgStop(WDGDriver *wdgp) {
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osalDbgCheck(wdgp != NULL);
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osalSysLock();
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osalDbgAssert((wdgp->state == WDG_STOP) || (wdgp->state == WDG_READY),
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"invalid state");
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wdg_lld_stop(wdgp);
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wdgp->config = NULL;
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wdgp->state = WDG_STOP;
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osalSysUnlock();
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}
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/**
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* @brief Resets WDG's counter.
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*
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* @param[in] wdgp pointer to the @p WDGDriver object
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*
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* @api
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*/
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void wdgReset(WDGDriver *wdgp) {
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osalDbgCheck(wdgp != NULL);
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osalSysLock();
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osalDbgAssert(wdgp->state == WDG_READY, "not ready");
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wdgResetI(wdgp);
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osalSysUnlock();
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}
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#endif /* HAL_USE_WDG == TRUE */
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/** @} */
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