/**
* set a single port to Output or Input - function requrired for wiringPi interface
* @param pin - port relative to pinBase
* @param newMode - 0 - Output; 1 - Input
* @return new value of complete port
*/
int Max7312::configPort(int pin, bool newMode){
if (isLowerPort(pin)) {
if(newMode)
{
SETBIT(_port1_mode, (GET_LOWER_PIN_ID(pin)));
}
else
{
CLEARBIT(_port1_mode, (GET_LOWER_PIN_ID(pin)));
}
configPort1(_port1_mode);
return _port1_mode;
} else {
if(newMode)
{
SETBIT(_port2_mode, (GET_HIGHER_PIN_ID(pin)));
}
else
{
CLEARBIT(_port2_mode, (GET_HIGHER_PIN_ID(pin)));
}
configPort2(_port2_mode);
return _port2_mode;
}
}
void Max7312::init(unsigned char portDirection1, unsigned char portDirection2, unsigned char timeoutFlag)
{
initDataBuffers();
Wire.begin();
configPort1(portDirection1);
configPort2(portDirection2);
configTimeout(timeoutFlag);
}
/**
* initialize the Max7311
* @param portDirection1 default values of ports 0-7 (1 - input; 0 - output)
* @param portDirection2 default values of ports 8-15 (1 - input; 0 - output)
* @param timeoutFlag 1 enable Bus timeout, 0 disable Bus timeout
*/
void Max7312::init(unsigned char portDirection1,
unsigned char portDirection2,
unsigned char timeoutFlag)
{
initDataBuffers();
if ((fd = wiringPiI2CSetup (_chipAddress)) < 0)
return;
node = wiringPiNewNode (_pinBase, MAX7312_NUM_OF_PORTS) ;
node->fd = fd ;
node->pinMode = _configPortMax7312;
node->digitalRead = _readPortMax7312;
node->digitalWrite = _writePortMax7312;
node->data1 = readPort1 () ;
node->data2 = readPort2 () ;
node->thisNode = this;
configPort1(portDirection1);
configPort2(portDirection2);
configTimeout(timeoutFlag);
}
