public bool make_idle(bool initial_abort)
{
int retries = 4;
DFU_Status status;
IUsbDevice thisDev = myUSBDevice as IUsbDevice;
if (initial_abort)
{
abort();
}
while (retries > 0)
{
if (!get_status(out status))
{
clear_status();
continue;
}
switch (status.State)
{
case DFUStateVals.STATE_DFU_IDLE:
if( DFUStatusVals.DFU_STATUS_OK == status.Status ) {
return(true);
}
/* We need the device to have the DFU_STATUS_OK status. */
clear_status();
break;
case DFUStateVals.STATE_DFU_DOWNLOAD_SYNC: /* abort -> idle */
case DFUStateVals.STATE_DFU_DOWNLOAD_IDLE: /* abort -> idle */
case DFUStateVals.STATE_DFU_MANIFEST_SYNC: /* abort -> idle */
case DFUStateVals.STATE_DFU_UPLOAD_IDLE: /* abort -> idle */
case DFUStateVals.STATE_DFU_DOWNLOAD_BUSY: /* abort -> error */
case DFUStateVals.STATE_DFU_MANIFEST: /* abort -> error */
abort();
break;
case DFUStateVals.STATE_DFU_ERROR:
clear_status();
break;
case DFUStateVals.STATE_APP_IDLE:
detach( DFU_DETACH_TIMEOUT );
break;
case DFUStateVals.STATE_APP_DETACH:
case DFUStateVals.STATE_DFU_MANIFEST_WAIT_RESET:
//DEBUG( "Resetting the device\n" );
thisDev.ResetDevice();
return(false);
}
retries--;
}
return(false);
}
void Reset()
{
if (UsbDev == null)
{
/* USB device not initilized, nothing to reset */
return;
}
Log.WriteLine("Resetting M4ATX device");
UsbDev.ResetDevice();
UsbDev = null;
}
public void ResetDevice()
{
_device.ResetDevice();
}
public static byte[] WriteAndRead2(int vid, int pid, byte[] byteArrayWritten)
{
ErrorCode ec = ErrorCode.None;
UsbDevice MyUsbDevice = null;
UsbDeviceFinder MyUsbFinder = new UsbDeviceFinder(vid, pid);
try
{
// Find and open the usb device.
MyUsbDevice = UsbDevice.OpenUsbDevice(MyUsbFinder);
// If the device is open and ready
if (MyUsbDevice == null)
{
throw new Exception("Device Not Found. vid=" + vid + ", pid=" + pid);
}
// If this is a "whole" usb device (libusb-win32, linux libusb)
// it will have an IUsbDevice interface. If not (WinUSB) the
// variable will be null indicating this is an interface of a
// device.
IUsbDevice wholeUsbDevice = MyUsbDevice as IUsbDevice;
if (!ReferenceEquals(wholeUsbDevice, null))
{
// This is a "whole" USB device. Before it can be used,
// the desired configuration and interface must be selected.
// Select config #1
wholeUsbDevice.SetConfiguration(1);
// Claim interface #0.
wholeUsbDevice.ClaimInterface(0);
}
// open read endpoint 1.
UsbEndpointReader reader = MyUsbDevice.OpenEndpointReader(ReadEndpointID.Ep02);
// open write endpoint 1.
UsbEndpointWriter writer = MyUsbDevice.OpenEndpointWriter(WriteEndpointID.Ep01);
// Remove the exepath/startup filename text from the begining of the CommandLine.
if (byteArrayWritten.Length > 0)
{
int bytesWritten;
byteArrayWritten = GetBytes("@PJL ECHO wrong sample 3-6-1993 23:12:00");
ec = writer.Write(byteArrayWritten, 2000, out bytesWritten);
if (ec != ErrorCode.None)
{
throw new Exception(UsbDevice.LastErrorString);
}
byte[] readBuffer = new byte[4096];
while (ec == ErrorCode.None)
{
int bytesRead;
// If the device hasn't sent data in the last 100 milliseconds,
// a timeout error (ec = IoTimedOut) will occur.
ec = reader.Read(readBuffer, 2000, out bytesRead);
if (ec != ErrorCode.None)
{
throw new Exception(UsbDevice.LastErrorString);
}
if (bytesRead == 0)
{
throw new Exception("No more bytes!");
}
// Write that output to the console.
//Console.Write(Encoding.Default.GetString(readBuffer, 0, bytesRead));
reader.ReadFlush();
return(readBuffer);
}
//Console.WriteLine("\r\nDone!\r\n");
}
else
{
throw new Exception("Nothing to do.");
}
}
catch (Exception ex)
{
throw ex;
//Console.WriteLine();
//Console.WriteLine((ec != ErrorCode.None ? ec + ":" : String.Empty) + ex.Message);
}
finally
{
try
{
if (MyUsbDevice != null)
{
if (MyUsbDevice.IsOpen)
{
// If this is a "whole" usb device (libusb-win32, linux libusb-1.0)
// it exposes an IUsbDevice interface. If not (WinUSB) the
// 'wholeUsbDevice' variable will be null indicating this is
// an interface of a device; it does not require or support
// configuration and interface selection.
IUsbDevice wholeUsbDevice = MyUsbDevice as IUsbDevice;
if (!ReferenceEquals(wholeUsbDevice, null))
{
wholeUsbDevice.ResetDevice();
// Release interface #0.
wholeUsbDevice.ReleaseInterface(0);
}
MyUsbDevice.Close();
}
MyUsbDevice = null;
// Free usb resources
UsbDevice.Exit();
}
}
catch (Exception ex)
{
throw ex;
}
}
return(null);
}
