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/*
ChibiOS/HAL - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012,2013,2014 Giovanni Di Sirio.
This file is part of ChibiOS/HAL
ChibiOS/HAL 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/>.
*/
/*
Concepts and parts of this file have been contributed by Uladzimir Pylinsky
aka barthess.
*/
/**
* @file rtc.h
* @brief RTC Driver macros and structures.
*
* @addtogroup RTC
* @{
*/
#ifndef _RTC_H_
#define _RTC_H_
#if HAL_USE_RTC || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/**
* @brief Base year of the calendar.
*/
#define RTC_BASE_YEAR 1980
/**
* @name Date/Time bit masks for FAT format
* @{
*/
#define RTC_FAT_TIME_SECONDS_MASK 0x0000001F
#define RTC_FAT_TIME_MINUTES_MASK 0x000007E0
#define RTC_FAT_TIME_HOURS_MASK 0x0000F800
#define RTC_FAT_DATE_DAYS_MASK 0x001F0000
#define RTC_FAT_DATE_MONTHS_MASK 0x01E00000
#define RTC_FAT_DATE_YEARS_MASK 0xFE000000
/** @} */
/**
* @name Day of week encoding
* @{
*/
#define RTC_DAY_CATURDAY 0
#define RTC_DAY_MONDAY 1
#define RTC_DAY_TUESDAY 2
#define RTC_DAY_WEDNESDAY 3
#define RTC_DAY_THURSDAY 4
#define RTC_DAY_FRIDAY 5
#define RTC_DAY_SATURDAY 6
#define RTC_DAY_SUNDAY 7
/** @} */
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief Type of a structure representing an RTC driver.
*/
typedef struct RTCDriver RTCDriver;
/**
* @brief Type of a structure representing an RTC date/time stamp.
*/
typedef struct {
uint32_t year:8; /**< @brief Years since 1980. */
uint32_t month: 4; /**< @brief Months 1..12. */
uint32_t dstflag: 1; /**< @brief DST correction flag. */
uint32_t dayofweek: 3; /**< @brief Day of week 1..7. */
uint32_t day: 5; /**< @brief Day of the month 1..31. */
uint32_t millisecond: 27; /**< @brief Milliseconds since midnight.*/
} RTCDateTime;
#include "rtc_lld.h"
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/**
* @brief Set current time.
*
* @param[in] rtcp pointer to RTC driver structure
* @param[in] timespec pointer to a @p RTCDateTime structure
*
* @iclass
*/
#define rtcSetTimeI(rtcp, timespec) \
rtc_lld_set_time(rtcp, timespec)
/**
* @brief Get current time.
*
* @param[in] rtcp pointer to RTC driver structure
* @param[out] timespec pointer to a @p RTCDateTime structure
*
* @iclass
*/
#define rtcGetTimeI(rtcp, timespec) \
rtc_lld_get_time(rtcp, timespec)
#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
*
* @iclass
*/
#define rtcSetAlarmI(rtcp, alarm, alarmspec) \
rtc_lld_set_alarm(rtcp, alarm, alarmspec)
/**
* @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
*
* @iclass
*/
#define rtcGetAlarmI(rtcp, alarm, alarmspec) \
rtc_lld_get_alarm(rtcp, alarm, alarmspec)
#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
*
* @iclass
*/
#define rtcSetCallbackI(rtcp, callback) \
rtc_lld_set_callback(rtcp, callback)
#endif /* RTC_SUPPORTS_CALLBACKS */
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
void rtcInit(void);
void rtcSetTime(RTCDriver *rtcp, const RTCDateTime *timespec);
void rtcGetTime(RTCDriver *rtcp, RTCDateTime *timespec);
#if RTC_ALARMS > 0
void rtcSetAlarm(RTCDriver *rtcp,
rtcalarm_t alarm,
const RTCAlarm *alarmspec);
void rtcGetAlarm(RTCDriver *rtcp, rtcalarm_t alarm, RTCAlarm *alarmspec);
#endif
#if RTC_SUPPORTS_CALLBACKS
void rtcSetCallback(RTCDriver *rtcp, rtccb_t callback);
#endif
uint32_t rtcConvertDateTimeToFAT(RTCDateTime *timespec);
#ifdef __cplusplus
}
#endif
#endif /* HAL_USE_RTC */
#endif /* _RTC_H_ */
/** @} */
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