137 lines
4.2 KiB
C
137 lines
4.2 KiB
C
/*
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ChibiOS/HAL - Copyright (C) 2006,2007,2008,2009,2010,
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2011,2012,2013,2014 Giovanni Di Sirio.
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This file is part of ChibiOS/HAL
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ChibiOS/HAL is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file st.c
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* @brief ST Driver code.
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*
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* @addtogroup ST
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* @{
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*/
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#include "hal.h"
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#if (OSAL_ST_MODE != OSAL_ST_MODE_NONE) || 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 types. */
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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 ST 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 stInit(void) {
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st_lld_init();
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}
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/**
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* @brief Starts the alarm.
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* @note Makes sure that no spurious alarms are triggered after
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* this call.
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* @note This functionality is only available in free running mode, the
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* behavior in periodic mode is undefined.
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*
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* @param[in] time the time to be set for the first alarm
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*
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* @api
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*/
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void stStartAlarm(systime_t time) {
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osalDbgAssert(stIsAlarmActive() == false, "already active");
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st_lld_start_alarm(time);
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}
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/**
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* @brief Stops the alarm interrupt.
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* @note This functionality is only available in free running mode, the
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* behavior in periodic mode is undefined.
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*
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* @api
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*/
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void stStopAlarm(void) {
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osalDbgAssert(stIsAlarmActive() != false, "not active");
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st_lld_stop_alarm();
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}
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/**
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* @brief Sets the alarm time.
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* @note This functionality is only available in free running mode, the
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* behavior in periodic mode is undefined.
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*
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* @param[in] time the time to be set for the next alarm
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*
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* @api
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*/
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void stSetAlarm(systime_t time) {
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osalDbgAssert(stIsAlarmActive() != false, "not active");
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st_lld_set_alarm(time);
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}
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/**
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* @brief Returns the current alarm time.
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* @note This functionality is only available in free running mode, the
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* behavior in periodic mode is undefined.
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*
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* @return The currently set alarm time.
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*
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* @api
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*/
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systime_t stGetAlarm(void) {
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osalDbgAssert(stIsAlarmActive() != false, "not active");
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return st_lld_get_alarm();
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}
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#endif /* OSAL_ST_MODE != OSAL_ST_MODE_NONE */
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/** @} */
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