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/*
* MIT License
*
* Copyright (c) 2020 Joey Castillo
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
////< @file watch_rtc.h
#include "hpl_calendar.h"
/** @addtogroup rtc Real-Time Clock
* @brief This section covers functions related to the SAM L22's real-time clock peripheral, including
* date, time and alarm functions.
* @details The real-time clock is the only peripheral that main.c enables for you. It is the cornerstone
* of low power operation on the watch, and it is required for several key functions that we
* assume will be available, namely the wake from BACKUP mode and the callback on the ALARM button.
* It is also required for the operation of the 1 Hz tick interrupt, which you will most likely use
* to wake from STANDBY mode.
*/
/// @{
/** @brief Called by main.c to check if the RTC is enabled.
* You may call this function, but outside of app_init, it sbould always return true.
*/
bool _watch_rtc_is_enabled();
/** @brief Sets the system date and time.
* @param date_time A struct representing the date and time you wish to set.
*/
void watch_set_date_time(struct calendar_date_time date_time);
/** @brief Returns the system date and time in the provided struct.
* @param date_time A pointer to a calendar_date_time struct.
It will be populated with the correct date and time on return.
*/
void watch_get_date_time(struct calendar_date_time *date_time);
/** @brief Registers a "tick" callback that will be called once per second.
* @param callback The function you wish to have called when the clock ticks.
*/
void watch_register_tick_callback(ext_irq_cb_t callback);
/// @}
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