/// <summary>
/// We Parse and trigger the events here
/// </summary>
/// <param name="Packet">The packet</param>
protected override void parseData(CFAPacket Packet)
{
switch (Packet.Command)
{
//Response to Ping Command
case 0x40:
break;
//Return from Read 8 Bytes of Data
case 0x4A:
break;
//Fan Report
case 0x81:
break;
//Temp Report
case 0x82:
break;
//Reporting and Status
case 0x1E:
break;
default:
//Nothing :(
break;
} //end switch
base.parseData(Packet);
}
protected override void parseData(CFAPacket Packet)
{
base.parseData(Packet);
}
private void processIncomingQueue()
{
bool checkAgain = false;
lock (_incomingQueueLock)
{
if (_incomingBytes.Count < 4)
{
return;
}
byte command = _incomingBytes.Peek();
int maskedCommand = command & 0x3F;
if (maskedCommand < 0 || maskedCommand > 35)
{
// Invalid packet
_incomingBytes.Dequeue();
checkAgain = true;
}
else
{
byte packetLength = _incomingBytes.ElementAt(1);
int totalLength = packetLength + 4;
if (packetLength > 22)
{
// Invalid packet
_incomingBytes.Dequeue();
checkAgain = true;
}
else if (_incomingBytes.Count >= totalLength)
{
// We have enough data for a full packet
// Let's process it now.
//Create a new packet
CFAPacket _Packet = new CFAPacket()
{
Command = command,
DataLength = packetLength,
Data = new byte[packetLength]
};
//Read in all data packets
for (int i = 0; i < _Packet.DataLength; i++)
{
_Packet.Data[i] = _incomingBytes.ElementAt(i + 2);
}
//Read the CRC
byte[] _crcByte = new byte[2];
_crcByte[0] = _incomingBytes.ElementAt(totalLength - 2);
_crcByte[1] = _incomingBytes.ElementAt(totalLength - 1);
_Packet.CRC = BitConverter.ToUInt16(_crcByte, 0);
List <byte> _tempBytes = new byte[] { command, packetLength }.Concat(_Packet.Data).ToList();
CRC.CalculateCRC(ref _tempBytes);
if (_crcByte[0] == _tempBytes.ElementAt(_tempBytes.Count - 2) &&
_crcByte[1] == _tempBytes.Last())
{
for (int i = 0; i < totalLength; i++)
{
_incomingBytes.Dequeue();
}
this.parseData(_Packet);
}
else
{
_incomingBytes.Dequeue();
}
// Check for additional packets
checkAgain = true;
}
}
}
if (checkAgain)
{
processIncomingQueue();
}
}
public CFAPacketEventArgs(CFAPacket Packet)
{
this.Packet = Packet;
}
/// <summary>
/// These will trigger event that are common in all 3 CFA usb lcds
/// </summary>
/// <param name="Packet">That Packet</param>
protected virtual void parseData(CFAPacket Packet)
{
if (PacketRecived != null)
{
PacketRecived(this, Packet);
}
switch (Packet.Command)
{
//Ping Command Return
case 0x40:
break;
//Hardware Firmware Version return
case 0x41:
if (HardwareFirmwareVersion != null)
{
this.HardwareFirmwareVersion(this, new CFAHardwareFirmwareEventArgs(ASCIIEncoding.ASCII.GetString(Packet.Data)));
}
break;
//Write User Flash Area
case 0x42:
break;
//Read user Flash Area
case 0x43:
if (ReadUserFlash != null)
{
this.ReadUserFlash(this, new CFAReadUserFlashEventArgs(Packet.Data));
}
break;
//Response from Store Current State
case 0x44:
break;
//Response from Reboot CFA,Reset host, Power Off host
case 0x45:
break;
//Response from Clear LCDd
case 0x46:
break;
//Return from set special charater data
case 0x49:
break;
//Response from Read 8 bytes of lcd memeroy data
case 0x4A:
if (ReadData != null)
{
int _address = Packet.Data[0];
byte[] _data = new byte[Packet.DataLength - 1];
Array.Copy(Packet.Data, 1, _data, 0, Packet.DataLength - 1);
this.ReadData(this, new CFAReadDataEventArgs(_data, _address));
}
break;
//Response from Set Cursor Position
case 0x4B:
break;
//Response from Set Cursor Style
case 0x4C:
break;
//Response from Set Cursor Contrast
case 0x4D:
break;
//Response from Set LCD / Keypad Backlight
case 0x4E:
break;
//Response from Send Command directly to lcd controller
case 0x56:
break;
//Response from read reporting and status
case 0x5E:
if (ReportingAndStatus != null)
{
CFAReportingAndStatusEventArgs _eventArgs = new CFAReportingAndStatusEventArgs();
_eventArgs.Fans = IntToEnum <Binary>(Packet.Data[0]);
_eventArgs.Sensors1_8 = IntToEnum <Binary>(Packet.Data[1]);
_eventArgs.Sensors9_15 = IntToEnum <Binary>(Packet.Data[2]);
_eventArgs.Sensors16_23 = IntToEnum <Binary>(Packet.Data[3]);
_eventArgs.Sensors24_32 = IntToEnum <Binary>(Packet.Data[4]);
_eventArgs.KeyPresses = Packet.Data[5];
_eventArgs.KeyReleases = Packet.Data[6];
_eventArgs.ATXPowerSwitch = IntToEnum <Binary>(Packet.Data[7]);
_eventArgs.WatchdogCounter = Packet.Data[8];
_eventArgs.Fan1Glitch = Packet.Data[9];
_eventArgs.Fan2Glitch = Packet.Data[10];
_eventArgs.Fan3Glitch = Packet.Data[11];
_eventArgs.Fan4Glitch = Packet.Data[12];
_eventArgs.Contrast = Packet.Data[13];
_eventArgs.Backlight = Packet.Data[14];
this.ReportingAndStatus(this, _eventArgs);
}
break;
//Response from Send Data to LCD
case 0x5F:
break;
//Response from set baud rate
case 0x61:
//We switch after we get the packet that the device has switched
_sp.BaudRate = _baudRateChange;
this._baudRate = _baudRateChange;
_baudRateChange = 0;
break;
#region KeyPressed
//Key Pressed Packet
case 0x80:
if (Packet.DataLength != 1)
{
//We got an error....
}
int _keyByte = Packet.Data[0];
//Less then or equall to 6 = KeyPress
if (_keyByte <= 6)
{
if (KeyPressed != null)
{
KeyPressed(this, new CFAKeyEventArgs(this.IntToEnum <Keys>(_keyByte)));
}
}
//grater then 6 = KeyRelease, Must be less then or equall to 12
if (_keyByte > 6 && _keyByte <= 12)
{
if (KeyReleased != null)
{
KeyReleased(this, new CFAKeyEventArgs(this.IntToEnum <Keys>(_keyByte - 6)));
}
}
//For CFA633 presses
if (_keyByte > 12 && _keyByte <= 16)
{
if (KeyPressed != null)
{
KeyPressed(this, new CFAKeyEventArgs(this.IntToEnum <Keys>(_keyByte)));
}
}
//for CFA633 releases
if (_keyByte > 16 && _keyByte <= 20)
{
if (KeyReleased != null)
{
KeyReleased(this, new CFAKeyEventArgs(this.IntToEnum <Keys>(_keyByte - 4)));
}
}
break;
#endregion
}
}
