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/**
* @file
*
* @ingroup RTEMSImplClassicClock
*
* @brief This source file contains the implementation of
* _TOD_To_seconds().
*/
/*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#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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