// #########################################################################
// ### Port Manipulation Code
// #########################################################################
#region
/// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
/// <summary>
/// Opens the port. Throws an exception on failure, including if the port is
/// already open.
///
/// This is really just doing the equivalent of a shell command
/// echo <gpioID> > /sys/class/gpio/export
/// after which the /sys/class/gpio/gpio<gpioID> directory should exist.
/// If it already exists the port is in use by someone else
///
/// </summary>
/// <history>
/// 01 Dec 16 Cynic - Originally written
/// </history>
protected override void OpenPort()
{
// some tests
if (GpioID == GpioEnum.GPIO_NONE)
{
throw new Exception("Cannot open port. Invalid port: " + GpioID.ToString());
}
// do the open
System.IO.File.WriteAllText(RPIDefinitions.SYSFS_GPIODIR + RPIDefinitions.SYSFS_GPIOEXPORT, GpioUtils.GpioIDToString(GpioID));
}
// #########################################################################
// ### Port Manipulation Code
// #########################################################################
#region
/// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
/// <summary>
/// Opens the port.
/// </summary>
/// <history>
/// 01 Dec 16 Cynic - Originally written
/// </history>
protected override void OpenPort()
{
// some tests
if (GpioID == GpioEnum.GPIO_NONE)
{
throw new Exception("Cannot open port. Invalid port: " + GpioID.ToString());
}
// ensure the pinmux is set appropriately so we can use this port
SetPinMuxModesForPort();
// set this flag
portIsOpen = true;
}
// #########################################################################
// ### Port Manipulation Code
// #########################################################################
#region
/// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
/// <summary>
/// Opens the port.
/// </summary>
/// <history>
/// 28 Aug 14 Cynic - Originally written
/// </history>
protected override void OpenPort()
{
// some tests
if (GpioID == GpioEnum.GPIO_NONE)
{
throw new Exception("Cannot open port. Invalid port: " + GpioID.ToString());
}
// make sure the gpio bank is enabled
if (MMDevMem.GPIOBankIsEnabled(GpioCfgObject) == false)
{
MMDevMem.EnableGPIOBank(GpioCfgObject);
}
// set our direction on this port
MMDevMem.SetGpioDirection(GpioCfgObject, PortDirection());
// set this flag
portIsOpen = true;
}