private void InitializeGpio(Ft4222Device device)
{
DeviceInformation = device;
// Open device
var ftStatus = FtFunction.FT_OpenEx(DeviceInformation.LocId, FtOpenType.OpenByLocation, out _ftHandle);
if (ftStatus != FtStatus.Ok)
{
throw new IOException($"Failed to open device {DeviceInformation.Description}, status: {ftStatus}");
}
ftStatus = FtFunction.FT4222_SetSuspendOut(_ftHandle, false);
if (ftStatus != FtStatus.Ok)
{
throw new IOException($"Can't initialize GPIO for device {DeviceInformation.Description} changing Suspend out mode, status: {ftStatus}");
}
ftStatus = FtFunction.FT4222_SetWakeUpInterrupt(_ftHandle, false);
if (ftStatus != FtStatus.Ok)
{
throw new IOException($"Can't initialize GPIO for device {DeviceInformation.Description} removing wake up interrupt, status: {ftStatus}");
}
for (int i = 0; i < PinCountConst; i++)
{
_gpioDirections[i] = GpioPinMode.Output;
}
ftStatus = FtFunction.FT4222_GPIO_Init(_ftHandle, _gpioDirections);
if (ftStatus != FtStatus.Ok)
{
throw new IOException($"Can't initialize GPIO for device {DeviceInformation.Description}, status: {ftStatus}");
}
}
/// <summary>
/// Create a FT4222 GPIO driver
/// </summary>
/// <param name="deviceNumber">Number of the device in the device list, default 0</param>
public Ft4222Gpio(int deviceNumber = 0)
{
// Check device
var devInfos = FtCommon.GetDevices();
if (devInfos.Count == 0)
{
throw new IOException("No FTDI device available");
}
// Select the deviceNumber, only the last one in Mode 0 and Mode 1 can be open.
// The last one is either B if in Mode 0 or D in mode 1.
string strMode = devInfos[0].Type == FtDevice.Ft4222HMode1or2With4Interfaces ? "FT4222 D" : "FT4222 B";
var devInfo = devInfos.Where(m => m.Description == strMode).ToArray();
if ((devInfo.Length == 0) || (devInfo.Length < deviceNumber))
{
throw new IOException($"Can't find a device to open GPIO on index {deviceNumber}");
}
DeviceInformation = devInfo[deviceNumber];
// Open device
var ftStatus = FtFunction.FT_OpenEx(DeviceInformation.LocId, FtOpenType.OpenByLocation, out _ftHandle);
if (ftStatus != FtStatus.Ok)
{
throw new IOException($"Failed to open device {DeviceInformation.Description}, status: {ftStatus}");
}
ftStatus = FtFunction.FT4222_SetSuspendOut(_ftHandle, false);
if (ftStatus != FtStatus.Ok)
{
throw new IOException($"Can't initialize GPIO for device {DeviceInformation.Description} changing Suspend out mode, status: {ftStatus}");
}
ftStatus = FtFunction.FT4222_SetWakeUpInterrupt(_ftHandle, false);
if (ftStatus != FtStatus.Ok)
{
throw new IOException($"Can't initialize GPIO for device {DeviceInformation.Description} removing wake up interrupt, status: {ftStatus}");
}
for (int i = 0; i < PinCountConst; i++)
{
_gpioDirections[i] = GpioPinMode.Output;
}
ftStatus = FtFunction.FT4222_GPIO_Init(_ftHandle, _gpioDirections);
if (ftStatus != FtStatus.Ok)
{
throw new IOException($"Can't initialize GPIO for device {DeviceInformation.Description}, status: {ftStatus}");
}
}
