File content as of revision 10:cb16d2957f8d:

/**
* DebouncedInterrupt.cpp
**/
#include "DebouncedInterrupt.h"

Timeout timeout;

DebouncedInterrupt::DebouncedInterrupt(PinName pin)
{
    _in = new InterruptIn(pin);
}

DebouncedInterrupt::~DebouncedInterrupt()
{
}

void DebouncedInterrupt::attach(void (*fptr)(void), 
                                       const interruptTrigger& trigger,
                                       const unsigned int& debounce_ms)
{
    if(fptr) {
        fCallback = fptr;
        _last_debounce_count = _debounce_count = 0;
        
        switch(trigger) {
         case INT_RISE:
            _in->rise(this, &DebouncedInterrupt::_onInterrupt);
            break;
         case INT_FALL:
            _in->fall(this, &DebouncedInterrupt::_onInterrupt);
            break;
         default:
            break;
        }
    
        _debounce_us = 1000*debounce_ms;
    }
}

void DebouncedInterrupt::reset()
{
    timeout.detach();
}

unsigned int DebouncedInterrupt::get_debounce()
{
    return _last_debounce_count;
}

void DebouncedInterrupt::_callback()
{
    _last_debounce_count = _debounce_count;
    _debounce_count = 0;
    fCallback();
}

void DebouncedInterrupt::_onInterrupt()
{
    _debounce_count++;
    timeout.attach_us(this, &DebouncedInterrupt::_callback, _debounce_us);
}