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/**
* Narcoleptic - A sleep library for Arduino
* Copyright (C) 2010 Peter Knight (Cathedrow)
*
* This program 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.
*
* This program 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/>.
*/
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/common.h>
//#include <util/delay.h>
#include <avr/wdt.h>
#include <avr/sleep.h>
#include "Narcoleptic.h"
SIGNAL(WDT_vect) {
wdt_disable();
wdt_reset();
WDTCSR &= ~_BV(WDIE);
}
void NarcolepticClass::sleep(uint8_t wdt_period) {
wdt_enable(wdt_period);
wdt_reset();
WDTCSR |= _BV(WDIE);
set_sleep_mode(SLEEP_MODE_PWR_DOWN);
sleep_mode();
wdt_disable();
WDTCSR &= ~_BV(WDIE);
}
void NarcolepticClass::delay(int milliseconds) {
while (milliseconds >= 8000) { sleep(WDTO_8S); milliseconds -= 8000; }
if (milliseconds >= 4000) { sleep(WDTO_4S); milliseconds -= 4000; }
if (milliseconds >= 2000) { sleep(WDTO_2S); milliseconds -= 2000; }
if (milliseconds >= 1000) { sleep(WDTO_1S); milliseconds -= 1000; }
if (milliseconds >= 500) { sleep(WDTO_500MS); milliseconds -= 500; }
if (milliseconds >= 250) { sleep(WDTO_250MS); milliseconds -= 250; }
if (milliseconds >= 125) { sleep(WDTO_120MS); milliseconds -= 120; }
if (milliseconds >= 64) { sleep(WDTO_60MS); milliseconds -= 60; }
if (milliseconds >= 32) { sleep(WDTO_30MS); milliseconds -= 30; }
if (milliseconds >= 16) { sleep(WDTO_15MS); milliseconds -= 15; }
}
NarcolepticClass Narcoleptic;
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