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/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2014 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <signal.h>
#include <iostream>
#include "mpr121.h"
using namespace std;
int shouldRun = true;
void sig_handler(int signo)
{
if (signo == SIGINT)
shouldRun = false;
}
void printButtons(upm::MPR121 *touch)
{
bool buttonPressed = false;
cout << "Buttons Pressed: ";
for (int i=0; i<12; i++)
{
if (touch->m_buttonStates & (1 << i))
{
cout << i << " ";
buttonPressed = true;
}
}
if (!buttonPressed)
cout << "None";
if (touch->m_overCurrentFault)
cout << "Over Current Fault detected!" << endl;
cout << endl;
}
int main(int argc, char **argv)
{
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate an MPR121 on I2C bus 0
upm::MPR121 *touch = new upm::MPR121(MPR121_I2C_BUS, MPR121_DEFAULT_I2C_ADDR);
// init according to AN3944 defaults
touch->configAN3944();
while (shouldRun)
{
touch->readButtons();
printButtons(touch);
sleep(1);
}
//! [Interesting]
cout << "Exiting..." << endl;
delete touch;
return 0;
}
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