int ProgramSenoko::prepGPIO(void)
{
QFile exportFile("/sys/class/gpio/export");
if (!exportFile.open(QIODevice::WriteOnly)) {
testError(QString() + "Unable to open GPIO export file: " + exportFile.errorString());
return 1;
}
exportFile.write("149");
exportFile.close();
QFile directionFile("/sys/class/gpio/gpio149/direction");
if (!directionFile.open(QIODevice::WriteOnly)) {
testError(QString() + "Unable to open GPIO149 direction file: " + directionFile.errorString());
return 1;
}
directionFile.write("out\n");
directionFile.close();
QFile valueFile("/sys/class/gpio/gpio149/value");
if (!valueFile.open(QIODevice::WriteOnly)) {
testError(QString() + "Unable to open GPIO149 value file: " + valueFile.errorString());
return 1;
}
valueFile.write("0\n");
valueFile.close();
return 0;
}
void Pin::setValue(int value) {
ofstream valueFile(this->m_valuePath);
if(!valueFile) {
throw("SET VALUE FAILED : " + string(strerror(errno)));
}
valueFile << value;
valueFile.close();
}
int Pin::getValue() const {
string value;
ifstream valueFile(this->m_valuePath);
if(!valueFile) {
throw("GET VALUE FAILED : " + string(strerror(errno)));
}
valueFile >> value;
valueFile.close();
if(value != "0") {
return(HIGH);
}
return(LOW);
}
int ProgramSenoko::resetGPIO(void)
{
QFile valueFile("/sys/class/gpio/gpio149/value");
if (!valueFile.open(QIODevice::WriteOnly)) {
testError(QString() + "Unable to open GPIO149 value file: " + valueFile.errorString());
return 1;
}
valueFile.write("0\n");
valueFile.close();
sleep(1);
if (!valueFile.open(QIODevice::WriteOnly)) {
testError(QString() + "Unable to open GPIO149 value file: " + valueFile.errorString());
return 1;
}
valueFile.write("1\n");
valueFile.close();
return 0;
}