194 lines
6.2 KiB
C
194 lines
6.2 KiB
C
/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
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2011,2012,2013 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT 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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Concepts and parts of this file have been contributed by Uladzimir Pylinsky
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aka barthess.
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*/
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/**
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* @file rtc.h
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* @brief RTC Driver macros and structures.
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*
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* @addtogroup RTC
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* @{
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*/
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#ifndef _RTC_H_
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#define _RTC_H_
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#if HAL_USE_RTC || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Driver constants. */
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/*===========================================================================*/
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/**
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* @name Date/Time bit masks for FAT format
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* @{
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*/
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#define RTC_FAT_TIME_SECONDS_MASK 0x0000001F
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#define RTC_FAT_TIME_MINUTES_MASK 0x000007E0
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#define RTC_FAT_TIME_HOURS_MASK 0x0000F800
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#define RTC_FAT_DATE_DAYS_MASK 0x001F0000
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#define RTC_FAT_DATE_MONTHS_MASK 0x01E00000
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#define RTC_FAT_DATE_YEARS_MASK 0xFE000000
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/** @} */
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/**
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* @name Day of week encoding
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* @{
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*/
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#define RTC_DAY_CATURDAY 0
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#define RTC_DAY_MONDAY 1
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#define RTC_DAY_TUESDAY 2
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#define RTC_DAY_WEDNESDAY 3
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#define RTC_DAY_THURSDAY 4
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#define RTC_DAY_FRIDAY 5
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#define RTC_DAY_SATURDAY 6
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#define RTC_DAY_SUNDAY 7
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/** @} */
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/*===========================================================================*/
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/* Driver pre-compile time settings. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Derived constants and error checks. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver data structures and types. */
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/*===========================================================================*/
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/**
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* @brief Type of a structure representing an RTC driver.
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*/
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typedef struct RTCDriver RTCDriver;
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/**
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* @brief Type of a structure representing an RTC date/time stamp.
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*/
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typedef struct {
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uint32_t year:8;
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uint32_t month: 4;
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uint32_t dstflag: 1;
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uint32_t dayofweek: 3;
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uint32_t day: 5;
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uint32_t millisecond: 27;
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} RTCDateTime;
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#include "rtc_lld.h"
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/*===========================================================================*/
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/* Driver macros. */
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/*===========================================================================*/
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/**
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* @brief Set current time.
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*
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* @param[in] rtcp pointer to RTC driver structure
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* @param[in] timespec pointer to a @p RTCDateTime structure
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*
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* @iclass
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*/
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#define rtcSetTimeI(rtcp, timespec) rtc_lld_set_time(rtcp, timespec)
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/**
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* @brief Get current time.
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*
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* @param[in] rtcp pointer to RTC driver structure
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* @param[out] timespec pointer to a @p RTCDateTime structure
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*
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* @iclass
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*/
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#define rtcGetTimeI(rtcp, timespec) rtc_lld_get_time(rtcp, timespec)
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#if (RTC_ALARMS > 0) || defined(__DOXYGEN__)
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/**
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* @brief Set alarm time.
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*
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* @param[in] rtcp pointer to RTC driver structure
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* @param[in] alarm alarm identifier
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* @param[in] alarmspec pointer to a @p RTCAlarm structure or @p NULL
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*
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* @iclass
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*/
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#define rtcSetAlarmI(rtcp, alarm, alarmspec) \
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rtc_lld_set_alarm(rtcp, alarm, alarmspec)
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/**
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* @brief Get current alarm.
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* @note If an alarm has not been set then the returned alarm specification
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* is not meaningful.
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*
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* @param[in] rtcp pointer to RTC driver structure
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* @param[in] alarm alarm identifier
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* @param[out] alarmspec pointer to a @p RTCAlarm structure
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*
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* @iclass
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*/
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#define rtcGetAlarmI(rtcp, alarm, alarmspec) \
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rtc_lld_get_alarm(rtcp, alarm, alarmspec)
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#endif /* RTC_ALARMS > 0 */
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#if RTC_SUPPORTS_CALLBACKS || defined(__DOXYGEN__)
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/**
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* @brief Enables or disables RTC callbacks.
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* @details This function enables or disables the callback, use a @p NULL
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* pointer in order to disable it.
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*
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* @param[in] rtcp pointer to RTC driver structure
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* @param[in] callback callback function pointer or @p NULL
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*
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* @iclass
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*/
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#define rtcSetCallbackI(rtcp, callback) rtc_lld_set_callback(rtcp, callback)
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#endif /* RTC_SUPPORTS_CALLBACKS */
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/*===========================================================================*/
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/* External declarations. */
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/*===========================================================================*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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void rtcInit(void);
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void rtcSetTime(RTCDriver *rtcp, const RTCDateTime *timespec);
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void rtcGetTime(RTCDriver *rtcp, RTCDateTime *timespec);
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#if RTC_ALARMS > 0
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void rtcSetAlarm(RTCDriver *rtcp,
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rtcalarm_t alarm,
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const RTCAlarm *alarmspec);
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void rtcGetAlarm(RTCDriver *rtcp, rtcalarm_t alarm, RTCAlarm *alarmspec);
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#endif
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#if RTC_SUPPORTS_CALLBACKS
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void rtcSetCallback(RTCDriver *rtcp, rtccb_t callback);
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#endif
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uint32_t rtcConvertDateTimeToFAT(RTCDateTime *timespec);
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#ifdef __cplusplus
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}
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#endif
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#endif /* HAL_USE_RTC */
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#endif /* _RTC_H_ */
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/** @} */
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