private bool WriteCommandToOutputBuffer(OutCmd command)
{
byte[] outputBuffer = new byte[MyHid.Capabilities.OutputReportByteLength];
outputBuffer[0] = 0;
outputBuffer[1] = Convert.ToByte(command);
outputBuffer[2] = 0;
Write(ref outputBuffer);
Hid.OutputReportViaInterruptTransfer outputReport = new Hid.OutputReportViaInterruptTransfer();
return(outputReport.Write(outputBuffer, writeHandle));
}
private void SendCommand(OutCmd command)
{
byte[] outputBuffer = new byte[MyHid.Capabilities.OutputReportByteLength];
outputBuffer[0] = 0;
outputBuffer[1] = Convert.ToByte(command);
outputBuffer[2] = 0;
Write(ref outputBuffer);
if (command == OutCmd.FirmwareStart || command == OutCmd.TaylorTestStart || command == OutCmd.UserTestStart)
{
SetupRead();
}
}
//This method is used for the cases where a single response packet will be enough to contain the results, and we will not have to iterate through a large amount of data
private string GetSinglePacketResponse(OutCmd outCommand)
{
try
{
////build command to send buffer
byte[] outputBuffer = new byte[MyHid.Capabilities.OutputReportByteLength];
outputBuffer[0] = 0;
outputBuffer[1] = Convert.ToByte(outCommand);//the value of the query firmware state
outputBuffer[2] = 0;
//Write command to buffer
Hid.OutputReportViaInterruptTransfer outputReport = new Hid.OutputReportViaInterruptTransfer();
if (!outputReport.Write(outputBuffer, writeHandle))
{
//Failure writing to the report
throw new Exception();
}
//Read from the input report
bool deviceConnected = true;
bool success = false;
Hid.InputReportViaInterruptTransfer myInputReport = new Hid.InputReportViaInterruptTransfer();
myInputReport.Read(hidHandle, readHandle, writeHandle, ref deviceConnected, ref inputBuffer, ref success);
if (!success)
{
//failure reading from the report
throw new Exception();
}
InputReportReceived(ref inputBuffer, success);
newInputData = true;
if (outCommand.Equals(OutCmd.SendFwVers) || outCommand.Equals(OutCmd.SendTestFileVers))
{
//Both of these types of queries return the same type of packet, an encoded string
return(Encoding.GetEncoding("iso-8859-1").GetString(inputBuffer, 3, inputBuffer[2]));
}
if (outCommand.Equals(OutCmd.QueryFirmwareState))
{
switch ((InCmd)inputBuffer[1])
{
case InCmd.BootloaderRunning:
return("BootloaderRunning");
case InCmd.MainFwRunning:
return("MainFwRunning");
default:
return("Unknown");
}
}
}
catch (Exception ex)
{
}
return(null);
}
public void ReceiveFile(string fileName, OutCmd outCmd)
{
BinaryWriter outputFileWriter = null;
try
{
// Open the output file and create an BinaryWriter object so we can write to it
outputFileWriter = new BinaryWriter(File.Open(fileName, FileMode.OpenOrCreate, FileAccess.Write));
// Request the file from the colorimeter
WriteCommandToOutputBuffer(outCmd);
// Wait for ACK
newInputData = ReadInputBuffer();
if ((InCmd)inputBuffer[1] == InCmd.ACK)
{
byte checksum = 0;
bool done = false;
while (!done)
{
// ACK received, now wait for test data
newInputData = false;
newInputData = ReadInputBuffer();
if (newInputData)
{
// Verify that the data we received is correct given outCmd
if ((outCmd == OutCmd.SendUserTests && inputBuffer[1] == (byte)InCmd.TestData) ||
(outCmd == OutCmd.SendTestResults && inputBuffer[1] == (byte)InCmd.ResultsData))
{
// Update our checksum
for (int i = 0; i < inputBuffer[2]; i++)
{
checksum ^= inputBuffer[3 + i];
}
// If input report received successfully, write data
outputFileWriter.Write(inputBuffer, 3, inputBuffer[2]);
WriteCommandToOutputBuffer(OutCmd.ACK);
}
else if (inputBuffer[1] == (byte)InCmd.DataSendComplete)
{
done = true;
if (checksum == inputBuffer[3])
{
WriteCommandToOutputBuffer(OutCmd.ACK);
}
else
{
WriteCommandToOutputBuffer(OutCmd.NAK);
}
}
else
{
WriteCommandToOutputBuffer(OutCmd.NAK);
done = true;
}
}
}
}
}
catch (Exception ex)
{
}
finally
{
if (outputFileWriter != null)
{
outputFileWriter.Close();
}
}
}
public byte[] GenerateMessage(OutCmd cmd, object data)
{
throw new NotImplementedException();
}
