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/**
* @file
*
* @ingroup RTEMSImplClassicClock
*
* @brief This source file contains the implementation of
* _TOD_Validate().
*/
/*
* 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>
#include <rtems/config.h>
/*
* The following array contains the number of days in all months.
* The first dimension should be 0 for leap years, and 1 otherwise.
* The second dimension should range from 1 to 12 for January to
* December, respectively.
*/
static const uint32_t _TOD_Days_per_month[ 2 ][ 13 ] = {
{ 0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
{ 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
};
rtems_status_code _TOD_Validate(
const rtems_time_of_day *the_tod,
TOD_Ticks_validation ticks_validation
)
{
size_t leap_year_index;
uint32_t days_in_month;
uint32_t ticks_per_second;
uint32_t ticks_mask;
if ( the_tod == NULL ) {
return RTEMS_INVALID_ADDRESS;
}
ticks_per_second = rtems_clock_get_ticks_per_second();
ticks_mask = (uint32_t) ticks_validation;
if ( ( the_tod->ticks & ticks_mask ) >= ticks_per_second ) {
return RTEMS_INVALID_CLOCK;
}
if ( the_tod->second >= TOD_SECONDS_PER_MINUTE ) {
return RTEMS_INVALID_CLOCK;
}
if ( the_tod->minute >= TOD_MINUTES_PER_HOUR ) {
return RTEMS_INVALID_CLOCK;
}
if ( the_tod->hour >= TOD_HOURS_PER_DAY ) {
return RTEMS_INVALID_CLOCK;
}
if ( the_tod->month == 0 || the_tod->month > TOD_MONTHS_PER_YEAR ) {
return RTEMS_INVALID_CLOCK;
}
if ( the_tod->year < TOD_BASE_YEAR || the_tod->year > TOD_LATEST_YEAR ) {
return RTEMS_INVALID_CLOCK;
}
if ( the_tod->day == 0 ) {
return RTEMS_INVALID_CLOCK;
}
leap_year_index = _TOD_Get_leap_year_index( the_tod->year );
days_in_month = _TOD_Days_per_month[ leap_year_index ][ the_tod->month ];
if ( the_tod->day > days_in_month ) {
return RTEMS_INVALID_CLOCK;
}
return RTEMS_SUCCESSFUL;
}
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