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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSImplClassicClock
*
* @brief This source file contains the implementation of
* _TOD_To_seconds().
*/
/*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/rtems/clockimpl.h>
#include <rtems/score/todimpl.h>
const uint16_t _TOD_Days_to_date[ 2 ][ 13 ] = {
{ 0, 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335 },
{ 0, 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 }
};
/*
* The following array contains the number of days in the years
* since the last leap year. The index should be 0 for leap
* years, and the number of years since the beginning of a leap
* year otherwise.
*/
const uint16_t _TOD_Days_since_last_leap_year[4] = { 0, 366, 731, 1096 };
Watchdog_Interval _TOD_To_seconds(
const rtems_time_of_day *the_tod
)
{
uint32_t time;
size_t leap_year_index;
time = the_tod->day - 1;
leap_year_index = _TOD_Get_leap_year_index( the_tod->year );
time += _TOD_Days_to_date[ leap_year_index ][ the_tod->month ];
time += ( (the_tod->year - TOD_BASE_YEAR) / 4 ) *
( (TOD_DAYS_PER_YEAR * 4) + 1);
time += _TOD_Days_since_last_leap_year[ the_tod->year % 4 ];
time *= TOD_SECONDS_PER_DAY;
time += ((the_tod->hour * TOD_MINUTES_PER_HOUR) + the_tod->minute)
* TOD_SECONDS_PER_MINUTE;
time += the_tod->second;
time += TOD_SECONDS_1970_THROUGH_1988;
return( time );
}
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