58 lines
2 KiB
C++
58 lines
2 KiB
C++
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/**
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* Narcoleptic - A sleep library for Arduino
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* Copyright (C) 2010 Peter Knight (Cathedrow)
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <avr/common.h>
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//#include <util/delay.h>
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#include <avr/wdt.h>
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#include <avr/sleep.h>
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#include "Narcoleptic.h"
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SIGNAL(WDT_vect) {
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wdt_disable();
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wdt_reset();
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WDTCSR &= ~_BV(WDIE);
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}
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void NarcolepticClass::sleep(uint8_t wdt_period) {
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wdt_enable(wdt_period);
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wdt_reset();
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WDTCSR |= _BV(WDIE);
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set_sleep_mode(SLEEP_MODE_PWR_DOWN);
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sleep_mode();
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wdt_disable();
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WDTCSR &= ~_BV(WDIE);
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}
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void NarcolepticClass::delay(int milliseconds) {
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while (milliseconds >= 8000) { sleep(WDTO_8S); milliseconds -= 8000; }
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if (milliseconds >= 4000) { sleep(WDTO_4S); milliseconds -= 4000; }
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if (milliseconds >= 2000) { sleep(WDTO_2S); milliseconds -= 2000; }
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if (milliseconds >= 1000) { sleep(WDTO_1S); milliseconds -= 1000; }
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if (milliseconds >= 500) { sleep(WDTO_500MS); milliseconds -= 500; }
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if (milliseconds >= 250) { sleep(WDTO_250MS); milliseconds -= 250; }
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if (milliseconds >= 125) { sleep(WDTO_120MS); milliseconds -= 120; }
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if (milliseconds >= 64) { sleep(WDTO_60MS); milliseconds -= 60; }
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if (milliseconds >= 32) { sleep(WDTO_30MS); milliseconds -= 30; }
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if (milliseconds >= 16) { sleep(WDTO_15MS); milliseconds -= 15; }
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}
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NarcolepticClass Narcoleptic;
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