Firmware/Marlin/Sanguino/cores/Copy of arduino/WInterrupts.c

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2011-11-14 18:27:47 +01:00
/* -*- mode: jde; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
Part of the Wiring project - http://wiring.uniandes.edu.co
Copyright (c) 2004-05 Hernando Barragan
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General
Public License along with this library; if not, write to the
Free Software Foundation, Inc., 59 Temple Place, Suite 330,
Boston, MA 02111-1307 USA
Modified 24 November 2006 by David A. Mellis
*/
#include <inttypes.h>
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/pgmspace.h>
#include <stdio.h>
#include "WConstants.h"
#include "wiring_private.h"
volatile static voidFuncPtr intFunc[EXTERNAL_NUM_INTERRUPTS];
// volatile static voidFuncPtr twiIntFunc;
void attachInterrupt(uint8_t interruptNum, void (*userFunc)(void), int mode)
{
if(interruptNum < EXTERNAL_NUM_INTERRUPTS)
{
intFunc[interruptNum] = userFunc;
//clear the config for the change settings
EICRA &= ~(B00000011 << (interruptNum * 2));
//set our mode.
EICRA |= (mode << (interruptNum * 2));
// Enable the interrupt.
EIMSK |= (1 << interruptNum);
}
}
void detachInterrupt(uint8_t interruptNum)
{
if(interruptNum < EXTERNAL_NUM_INTERRUPTS)
{
// Disable the interrupt.
EIMSK &= ~(1 << interruptNum);
intFunc[interruptNum] = 0;
}
}
ISR(INT0_vect) {
if(intFunc[EXTERNAL_INT_0])
intFunc[EXTERNAL_INT_0]();
}
ISR(INT1_vect) {
if(intFunc[EXTERNAL_INT_1])
intFunc[EXTERNAL_INT_1]();
}
ISR(INT2_vect) {
if(intFunc[EXTERNAL_INT_2])
intFunc[EXTERNAL_INT_2]();
}
/*
SIGNAL(SIG_2WIRE_SERIAL) {
if(twiIntFunc)
twiIntFunc();
}
*/