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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_st.c
* @brief ST Driver code.
*
* @addtogroup ST
* @{
*/
#include "hal.h"
#if (OSAL_ST_MODE != OSAL_ST_MODE_NONE) || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local types. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/**
* @brief ST Driver initialization.
* @note This function is implicitly invoked by @p halInit(), there is
* no need to explicitly initialize the driver.
*
* @init
*/
void stInit(void) {
st_lld_init();
}
/**
* @brief Starts the alarm.
* @note Makes sure that no spurious alarms are triggered after
* this call.
* @note This functionality is only available in free running mode, the
* behavior in periodic mode is undefined.
*
* @param[in] abstime the time to be set for the first alarm
*
* @api
*/
void stStartAlarm(systime_t abstime) {
osalDbgAssert(stIsAlarmActive() == false, "already active");
st_lld_start_alarm(abstime);
}
/**
* @brief Stops the alarm interrupt.
* @note This functionality is only available in free running mode, the
* behavior in periodic mode is undefined.
*
* @api
*/
void stStopAlarm(void) {
st_lld_stop_alarm();
}
/**
* @brief Sets the alarm time.
* @note This functionality is only available in free running mode, the
* behavior in periodic mode is undefined.
*
* @param[in] abstime the time to be set for the next alarm
*
* @api
*/
void stSetAlarm(systime_t abstime) {
osalDbgAssert(stIsAlarmActive() != false, "not active");
st_lld_set_alarm(abstime);
}
/**
* @brief Returns the current alarm time.
* @note This functionality is only available in free running mode, the
* behavior in periodic mode is undefined.
*
* @return The currently set alarm time.
*
* @api
*/
systime_t stGetAlarm(void) {
osalDbgAssert(stIsAlarmActive() != false, "not active");
return st_lld_get_alarm();
}
#endif /* OSAL_ST_MODE != OSAL_ST_MODE_NONE */
/** @} */
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