rtc.c
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/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
---
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes ChibiOS/RT, without being obliged to provide
the source code for any proprietary components. See the file exception.txt
for full details of how and when the exception can be applied.
*/
/*
Concepts and parts of this file have been contributed by Uladzimir Pylinsky
aka barthess.
*/
/**
* @file rtc.c
* @brief RTC Driver code.
*
* @addtogroup RTC
* @{
*/
#include "ch.h"
#include "hal.h"
#if HAL_USE_RTC || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/**
* @brief RTC Driver initialization.
* @note This function is implicitly invoked by @p halInit(), there is
* no need to explicitly initialize the driver.
*
* @init
*/
void rtcInit(void) {
rtc_lld_init();
}
/**
* @brief Set current time.
*
* @param[in] rtcp pointer to RTC driver structure
* @param[in] timespec pointer to a @p RTCTime structure
*
* @api
*/
void rtcSetTime(RTCDriver *rtcp, const RTCTime *timespec) {
chDbgCheck((rtcp != NULL) && (timespec != NULL), "rtcSetTime");
chSysLock();
rtcSetTimeI(rtcp, timespec);
chSysUnlock();
}
/**
* @brief Get current time.
*
* @param[in] rtcp pointer to RTC driver structure
* @param[out] timespec pointer to a @p RTCTime structure
*
* @api
*/
void rtcGetTime(RTCDriver *rtcp, RTCTime *timespec) {
chDbgCheck((rtcp != NULL) && (timespec != NULL), "rtcGetTime");
chSysLock();
rtcGetTimeI(rtcp, timespec);
chSysUnlock();
}
#if (RTC_ALARMS > 0) || defined(__DOXYGEN__)
/**
* @brief Set alarm time.
*
* @param[in] rtcp pointer to RTC driver structure
* @param[in] alarm alarm identifier
* @param[in] alarmspec pointer to a @p RTCAlarm structure or @p NULL
*
* @api
*/
void rtcSetAlarm(RTCDriver *rtcp,
rtcalarm_t alarm,
const RTCAlarm *alarmspec) {
chDbgCheck((rtcp != NULL) && (alarm < RTC_ALARMS), "rtcSetAlarm");
chSysLock();
rtcSetAlarmI(rtcp, alarm, alarmspec);
chSysUnlock();
}
/**
* @brief Get current alarm.
* @note If an alarm has not been set then the returned alarm specification
* is not meaningful.
*
* @param[in] rtcp pointer to RTC driver structure
* @param[in] alarm alarm identifier
* @param[out] alarmspec pointer to a @p RTCAlarm structure
*
* @api
*/
void rtcGetAlarm(RTCDriver *rtcp,
rtcalarm_t alarm,
RTCAlarm *alarmspec) {
chDbgCheck((rtcp != NULL) && (alarm < RTC_ALARMS) && (alarmspec != NULL),
"rtcGetAlarm");
chSysLock();
rtcGetAlarmI(rtcp, alarm, alarmspec);
chSysUnlock();
}
#endif /* RTC_ALARMS > 0 */
#if RTC_SUPPORTS_CALLBACKS || defined(__DOXYGEN__)
/**
* @brief Enables or disables RTC callbacks.
* @details This function enables or disables the callback, use a @p NULL
* pointer in order to disable it.
*
* @param[in] rtcp pointer to RTC driver structure
* @param[in] callback callback function pointer or @p NULL
*
* @api
*/
void rtcSetCallback(RTCDriver *rtcp, rtccb_t callback) {
chDbgCheck((rtcp != NULL), "rtcSetCallback");
chSysLock();
rtcSetCallbackI(rtcp, callback);
chSysUnlock();
}
#endif /* RTC_SUPPORTS_CALLBACKS */
#endif /* HAL_USE_RTC */
/** @} */