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DMXProUSB.cs
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DMXProUSB.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;
using System.Threading;
using Sniper.Lighting.DMX.Properties;
using FT_HANDLE = System.UInt32;
using System.Diagnostics;
using System.ComponentModel;
using System.Runtime.ExceptionServices;
namespace Sniper.Lighting.DMX
{
public class DMXProUSB
{
protected byte[] buffer;
protected uint handle;
protected bool done = false;
private int bytesWritten = 0;
protected FT_STATUS status;
private const byte BITS_8 = 8;
private const byte STOP_BITS_2 = 2;
private const byte PARITY_NONE = 0;
private const UInt16 FLOW_NONE = 0;
protected const byte PURGE_RX = 1;
protected const byte PURGE_TX = 2;
private const UInt32 FT_LIST_NUMBER_ONLY = 0x80000000;
protected const int GET_WIDGET_PARAMS = 3;
protected const int GET_WIDGET_SN = 10;
private const int GET_WIDGET_PARAMS_REPLY = 3;
private const int SET_WIDGET_PARAMS = 4;
private const int SET_DMX_RX_MODE = 5;
protected const int SET_DMX_TX_MODE = 6;
private const int ONE_BYTE = 1;
private const byte DMX_START_CODE = 0x7E;
protected const byte DMX_END_CODE = 0xE7;
private const byte OFFSET = 0xFF;
private const int DMX_HEADER_LENGTH = 4;
private const int BYTE_LENGTH = 8;
protected const bool NO_RESPONSE = false;
private const int DMX_PACKET_SIZE = 512;
public bool Connected = false;
public int StartCounter = 0;
[System.Runtime.ExceptionServices.HandleProcessCorruptedStateExceptions]
[DllImport("FTD2XX.dll")]
protected static extern FT_STATUS FT_Open(UInt32 uiPort, ref uint ftHandle);
[DllImport("FTD2XX.dll")]
protected static extern unsafe FT_STATUS FT_OpenEx(void* pvArg1, UInt32 dwFlags, ref FT_HANDLE ftHandle);
[DllImport("FTD2XX.dll")]
extern static unsafe FT_STATUS FT_ListDevices(void* pvArg1, void* pvArg2, UInt32 dwFlags); // FT_ListDevices by number only
[DllImport("FTD2XX.dll")]
extern static unsafe FT_STATUS FT_ListDevices(UInt32 pvArg1, void* pvArg2, UInt32 dwFlags); // FT_ListDevcies by serial number or description by index only
[DllImport("FTD2XX.dll")]
protected static extern FT_STATUS FT_Close(uint ftHandle);
[DllImport("FTD2XX.dll")]
static extern FT_STATUS FT_Read(uint ftHandle, IntPtr lpBuffer, UInt32 dwBytesToRead, ref UInt32 lpdwBytesReturned);
[DllImport("FTD2XX.dll")]
static extern FT_STATUS FT_Write(uint ftHandle, IntPtr lpBuffer, UInt32 dwBytesToRead, ref UInt32 lpdwBytesWritten);
[DllImport("FTD2XX.dll")]
static extern FT_STATUS FT_SetDataCharacteristics(uint ftHandle, byte uWordLength, byte uStopBits, byte uParity);
[DllImport("FTD2XX.dll")]
static extern FT_STATUS FT_SetFlowControl(uint ftHandle, char usFlowControl, byte uXon, byte uXoff);
[DllImport("FTD2XX.dll")]
static extern FT_STATUS FT_GetModemStatus(uint ftHandle, ref UInt32 lpdwModemStatus);
[DllImport("FTD2XX.dll")]
protected static extern FT_STATUS FT_Purge(uint ftHandle, UInt32 dwMask);
[DllImport("FTD2XX.dll")]
protected static extern FT_STATUS FT_SetBreakOn(uint ftHandle);
[DllImport("FTD2XX.dll")]
protected static extern FT_STATUS FT_SetBreakOff(uint ftHandle);
[DllImport("FTD2XX.dll")]
static extern FT_STATUS FT_GetStatus(uint ftHandle, ref UInt32 lpdwAmountInRxQueue, ref UInt32 lpdwAmountInTxQueue, ref UInt32 lpdwEventStatus);
[DllImport("FTD2XX.dll")]
static extern FT_STATUS FT_ResetDevice(uint ftHandle);
[DllImport("FTD2XX.dll")]
static extern FT_STATUS FT_SetDivisor(uint ftHandle, char usDivisor);
[DllImport("FTD2XX.dll")]
static extern unsafe FT_STATUS FT_SetDtr(FT_HANDLE ftHandle);
[DllImport("FTD2XX.dll")]
static extern unsafe FT_STATUS FT_ClrDtr(FT_HANDLE ftHandle);
[DllImport("FTD2XX.dll")]
static extern unsafe FT_STATUS FT_SetRts(FT_HANDLE ftHandle);
[DllImport("FTD2XX.dll")]
static extern unsafe FT_STATUS FT_ClrRts(FT_HANDLE ftHandle);
[DllImport("FTD2XX.dll")]
static extern unsafe FT_STATUS FT_GetQueueStatus(FT_HANDLE ftHandle, ref UInt32 lpdwAmountInRxQueue);
[DllImport("FTD2XX.dll")]
protected static extern unsafe FT_STATUS FT_GetLatencyTimer(FT_HANDLE ftHandle, ref byte pucTimer);
[DllImport("FTD2XX.dll")]
static extern unsafe FT_STATUS FT_SetLatencyTimer(FT_HANDLE ftHandle, byte ucTimer);
[DllImport("FTD2XX.dll")]
static extern unsafe FT_STATUS FT_GetBitMode(FT_HANDLE ftHandle, ref byte pucMode);
[DllImport("FTD2XX.dll")]
static extern unsafe FT_STATUS FT_SetBitMode(FT_HANDLE ftHandle, byte ucMask, byte ucEnable);
[DllImport("FTD2XX.dll")]
static extern unsafe FT_STATUS FT_SetUSBParameters(FT_HANDLE ftHandle, UInt32 dwInTransferSize, UInt32 dwOutTransferSize);
[DllImport("FTD2XX.dll")]
static extern unsafe FT_STATUS FT_GetDeviceInfo(FT_HANDLE ftHandle, ref FT_DEVICE ftDevice, ref UInt32 deviceID, void* SerialNumber, void* Description, UInt32 Flag);
[DllImport("FTD2XX.dll")]
protected static extern FT_STATUS FT_GetDriverVersion(FT_HANDLE ftHandle, ref uint lpdwVersion);
[DllImport("FTD2XX.dll")]
protected static extern FT_STATUS FT_SetTimeouts(FT_HANDLE ftHandle, uint ReadTimeout, uint WriteTimeout);
protected Thread writeDMXBUfferThread;
public event StateChangedEventHandler StateChanged;
public DMXProUSB()
{
}
public virtual bool start()
{
return start(Settings.Default.DMXChannelCount);
}
protected DmxLimits limits;
public void setLimits(DmxLimits newLimits)
{
limits = newLimits;
}
protected object startLock = null;
[System.Runtime.ExceptionServices.HandleProcessCorruptedStateExceptions]
protected virtual bool start(int busLength)
{
if (startLock == null)
{
startLock = new object();
}
try
{
lock (startLock)
{
if (!Connected)
{
if (buffer == null)
{
buffer = new byte[busLength]; // can be any length up to 512. The shorter the faster.
}
handle = 0;
if (FTDI_OpenDevice(0, ref status))
{
if (status == FT_STATUS.FT_OK)
{
// FT_Open OK, use ftHandle to access device
Connected = true;
byte value = 0;
for (int channel = 0; channel < buffer.Length; channel++)
{
value = 0;
if (limits != null)
{
if (value < limits.Min[channel]) value = limits.Min[channel];
}
SetDmxValue(channel, value);
}
writeDMXBUfferThread = new Thread(new ThreadStart(writeDMXBuffer));
writeDMXBUfferThread.IsBackground = true;
done = false;
writeDMXBUfferThread.Start();
return true;
}
else
{
Connected = false;
}
}
else
{
Connected = false;
}
}
}
}
catch
{
stop();
Connected = false;
}
return false;
}
public virtual void stop()
{
byte value = 0;
for (int channel = 0; channel < buffer.Length; channel++)
{
if (limits != null)
{
if (value < limits.Min[channel]) value = limits.Min[channel];
}
buffer[channel] = value;
}
newData = true;
Thread.Sleep(500);
FTDI_ClosePort();
FT_Close(handle);
Connected = false;
done = true;
}
public byte GetDmxValue(int channel)
{
if (buffer != null)
{
if (channel < buffer.Length)
{
return buffer[channel];
}
}
return 0;
}
public void SetDmxValue(int channel, byte value)
{
if (buffer != null)
{
if (channel < buffer.Length)
{
if (limits != null)
{
if (value < limits.Min[channel]) value = limits.Min[channel];
if (value > limits.Max[channel]) value = limits.Max[channel];
}
else
{
if (value < 0) value = 0;
if (value > 255) value = 255;
}
if (buffer[channel] != value)
{
buffer[channel] = value;
newData = true;
}
if (StateChanged != null)
{
StateChanged(null, new StateChangedEventArgs() { CurrentState = buffer });
}
}
}
}
public byte[] GetCurrentBuffer()
{
return (byte[])buffer.Clone();
}
protected bool newData = false;
protected virtual void writeDMXBuffer()
{
while (!done)
{
try
{
if (Connected)
{
if (newData)
{
FT_STATUS status = FT_STATUS.FT_OK;
if (!FTDI_SendData(handle, SET_DMX_TX_MODE, (new byte[1]).Concat(buffer).ToArray(), ref status))
{
break;
}
newData = false;
}
System.Threading.Thread.Sleep(25);
}
else
{
System.Threading.Thread.Sleep(1000);
}
}
catch (Exception)
{
break;
}
}
Connected = false;
done = false;
}
protected int write(uint handle, byte[] data, int length)
{
IntPtr ptr = Marshal.AllocHGlobal((int)length);
Marshal.Copy(data, 0, ptr, (int)length);
uint bytesWritten = 0;
status = FT_Write(handle, ptr, (uint)length, ref bytesWritten);
Marshal.FreeHGlobal(ptr);
if (status != FT_STATUS.FT_OK)
{
//write failed
done = true;
Connected = false;
return 0;
}
return (int)bytesWritten;
}
private FT_STATUS read(uint handle, byte[] data, int length, ref int bytesRead)
{
uint uintBytesRead = 0;
IntPtr ptr = Marshal.AllocHGlobal((int)length);
status = FT_Read(handle, ptr, (uint)length, ref uintBytesRead);
if (status != FT_STATUS.FT_OK)
{
//read failed
return status;
}
Marshal.Copy(ptr, data, 0, (int)length);
Marshal.FreeHGlobal(ptr);
bytesRead = (int)uintBytesRead;
return FT_STATUS.FT_OK;
}
protected struct DMXUSBPROParamsType
{
public byte UserSizeLSB;
public byte UserSizeMSB;
public byte BreakTime;
public byte MaBTime;
public byte RefreshRate;
}
protected virtual bool FTDI_OpenDevice(int device_num, ref FT_STATUS status)
{
//return false;
uint RTimeout = 120;
uint WTimeout = 100;
int VersionMSB = 0;
int VersionLSB = 0;
uint[] temp = new uint[4];
uint version = 0;
uint major_ver, minor_ver, build_ver;
int recvd = 0;
byte[] singleBuff = new byte[1];
int size = 0;
bool res = false;
int tries = 0;
byte latencyTimer = (byte)0;
int BreakTime;
int MABTime;
DMXUSBPROParamsType PRO_Params;
// Try at least 3 times
StartCounter++;
Console.WriteLine("\n------ D2XX ------- Opening [Device {0}] ------ Try {1}", device_num, StartCounter);
// Open the PRO
try
{
status = FT_Open((uint)device_num, ref handle);
if (status != FT_STATUS.FT_OK)
{
return false;
}
else
{
Connected = true;
// GET D2XX Driver Version
status = FT_GetDriverVersion(handle, ref version);
if (status == FT_STATUS.FT_OK)
{
major_ver = (uint)version >> 16;
minor_ver = (uint)version >> 8;
build_ver = (uint)version & 0xFF;
Console.WriteLine("D2XX Driver Version:: {0:x2}.{1:x2}.{2:x2}", major_ver, minor_ver, build_ver);
}
else
Console.WriteLine("Unable to Get D2XX Driver Version");
//// GET Latency Timer
status = FT_GetLatencyTimer(handle, ref latencyTimer);
if (status == FT_STATUS.FT_OK)
Console.WriteLine("Latency Timer:: {0} ", latencyTimer);
else
Console.WriteLine("Unable to Get Latency Timer");
//// SET Default Read & Write Timeouts (in micro sec ~ 100)
FT_SetTimeouts(handle, RTimeout, WTimeout);
//// Piurges the buffer
FT_Purge(handle, PURGE_RX);
//// Send Get Widget Parameters to get Device Info
Console.WriteLine("Sending GET_WIDGET_PARAMS packet... ");
FT_Purge(handle, PURGE_TX);
res = FTDI_SendData(handle, GET_WIDGET_PARAMS, new byte[2], ref status);
//// Check Response
if (res != NO_RESPONSE)
{
Console.WriteLine("PRO Connected Succesfully");
//// Receive Widget Response
Console.WriteLine("Waiting for GET_WIDGET_PARAMS_REPLY packet... ");
PRO_Params = new DMXUSBPROParamsType();
byte[] paramsBuff = new byte[Marshal.SizeOf(PRO_Params)];
res = FTDI_ReceiveData(handle, GET_WIDGET_PARAMS_REPLY, paramsBuff, paramsBuff.Length);
PRO_Params.UserSizeLSB = paramsBuff[0];
PRO_Params.UserSizeMSB = paramsBuff[1];
PRO_Params.BreakTime = paramsBuff[2];
PRO_Params.MaBTime = paramsBuff[3];
PRO_Params.RefreshRate = paramsBuff[4];
// Check Response
if (res == NO_RESPONSE)
{
//Receive Widget Response packet
res = FTDI_ReceiveData(handle, GET_WIDGET_PARAMS_REPLY, paramsBuff, paramsBuff.Length);
PRO_Params.UserSizeLSB = paramsBuff[0];
PRO_Params.UserSizeMSB = paramsBuff[1];
PRO_Params.BreakTime = paramsBuff[2];
PRO_Params.MaBTime = paramsBuff[3];
PRO_Params.RefreshRate = paramsBuff[4];
if (res == NO_RESPONSE)
{
FTDI_ClosePort();
return NO_RESPONSE;
}
}
else
Console.WriteLine("GET WIDGET REPLY Received ... ");
//// Firmware Version
VersionMSB = PRO_Params.UserSizeMSB;
VersionLSB = PRO_Params.UserSizeLSB;
//// GET PRO's serial number
res = FTDI_SendData(handle, GET_WIDGET_SN, new byte[2], ref status);
byte[] serialBuff = new byte[4];
res = FTDI_ReceiveData(handle, GET_WIDGET_SN, serialBuff, 4);
//// Display All PRO Parametrs & Info avialable
Console.WriteLine("-----------::PRO Connected [Information Follows]::------------");
Console.WriteLine("FIRMWARE VERSION: {0}.{1}", VersionMSB, VersionLSB);
BreakTime = (int)(PRO_Params.BreakTime * 10.67) + 100;
Console.WriteLine("BREAK TIME: {0} micro sec ", BreakTime);
MABTime = (int)(PRO_Params.MaBTime * 10.67);
Console.WriteLine("MAB TIME: {0} micro sec", MABTime);
Console.WriteLine("SEND REFRESH RATE: {0} packets/sec", PRO_Params.RefreshRate);
//// return success
return true;
}
else
{
return false;
}
}
}
catch
{
return false;
}
}
private DevData[] DevInformation;
private class DevData
{
public string DevDescription;
public FT_DEVICE DevInfo = FT_DEVICE.FT_DEVICE_UNKNOWN;
public string DevSerial;
public uint DevID;
}
/* Function : FTDI_ClosePort
* Author : ENTTEC
* Purpose : Closes the Open DMX USB PRO Device Handle
* Parameters: none
**/
void FTDI_ClosePort()
{
if (handle != null)
FT_Close(handle);
}
private Int16 SearchDevice()
{
//cmbDevList.SelectedIndex = iCurrentIndex;
FT_HANDLE ftHandle = new FT_HANDLE();
FT_DEVICE ftDevice;
FT_STATUS ftStatus;
Int16 numDevs;
string MyText = "";
unsafe
{
ftStatus = FT_ListDevices(&numDevs, null, FT_LIST_NUMBER_ONLY);
if (ftStatus == FT_STATUS.FT_OK)
{
MyText += "Number of devices is: " + numDevs.ToString() + "\n";
}
else
{
MyText += "Error";
}
DevInformation = new DevData[numDevs];
//pN->NumDeviceInLine=numDevs;
for (int i = 0; i < numDevs; i++)
{
ftStatus = FT_Open((uint)i, ref ftHandle);
if (ftStatus != FT_STATUS.FT_OK)
{
MyText += "Open failed\n";
continue;
}
byte Tim = 1;
ftStatus = FT_SetLatencyTimer(ftHandle,
Tim);
Tim = 0;
ftStatus = FT_GetLatencyTimer(ftHandle,
ref Tim);
MyText += "Dev " + i.ToString() + " - ";
if (ftStatus == FT_STATUS.FT_OK)
{
MyText += "\tTim="; MyText += Tim;
}
else
{
MyText += "FAILED\n";
}
string devSerial = "";
string devDescription = "";
byte[] SerialNumber = new byte[16];
byte[] sDescription = new byte[64];
uint devID = 0;
FT_DEVICE devType = FT_DEVICE.FT_DEVICE_UNKNOWN;
fixed (byte* pS = &SerialNumber[0])
fixed (byte* pD = &sDescription[0])
{
ftStatus = FT_GetDeviceInfo(
ftHandle
, ref devType
, ref devID
, pS
, pD
, 0);
}
for (int j = 0; j < SerialNumber.Length; j++)
{
if ((char)SerialNumber[j] == '\0') break;
devSerial += (char)SerialNumber[j];
}
for (int j = 0; j < sDescription.Length; j++)
{
if ((char)sDescription[j] == '\0') break;
devDescription += (char)sDescription[j];
}
DevData CurDev = new DevData()
{
DevDescription = devDescription,
DevID = devID,
DevInfo = devType,
DevSerial = devSerial
};
DevInformation[i] = CurDev;
FT_Close(ftHandle);
}
}
return numDevs;
}
/* Function : FTDI_SendData
* Author : ENTTEC
* Purpose : Send Data (DMX or other packets) to the PRO
* Parameters: Label, Pointer to Data Structure, Length of Data
* Modified by Gareth Evans, Sniper Systems to convert this to c# for use
*/
protected virtual bool FTDI_SendData(FT_HANDLE handle, int label, byte[] data, ref FT_STATUS status)
{
if (Connected)
{
int bytes_written = 0;
int size = 0;
// Form Packet Header
byte[] header = GetProHeader(label, data.Length);
byte[] footer = new byte[1] { DMX_END_CODE };
byte[] packet = header.Concat(data).Concat(footer).ToArray();
//Console.WriteLine("Write: {0}", Sniper.Common.Conversion.ToHex(true, packet));
bytes_written = write(handle, packet, packet.Length);
if (bytes_written != packet.Length)
{
return false;
}
if (status == FT_STATUS.FT_OK)
return true;
else
return false;
}
return false;
}
protected byte[] GetProHeader(int label, int length)
{
byte[] header = new byte[DMX_HEADER_LENGTH];
header[0] = DMX_START_CODE;
header[1] = (byte)label;
header[2] = (byte)(length & OFFSET);
header[3] = (byte)(length >> BYTE_LENGTH);
return header;
}
public void Dispose()
{
//if (Connected)
//{
done = true;
//}
Thread.Sleep(400);
if (writeDMXBUfferThread != null)
{
writeDMXBUfferThread.Abort();
Thread.Sleep(400);
}
//if (easingTickerThread != null)
//{
// easingTickerThread.Abort();
// easingTickerThread = null;
// Thread.Sleep(400);
//}
//if (DelayedActions != null)
//{
// //shut down delayed action manager
// DelayedActions.Dispose();
//}
}
/* Function : FTDI_ReceiveData
* Author : ENTTEC
* Purpose : Receive Data (DMX or other packets) from the PRO
* Parameters: Label, Pointer to Data Structure, Length of Data
* Modified by Gareth Evans, Sniper Systems to convert this to c# for use
**/
bool FTDI_ReceiveData(FT_HANDLE handle, int label, byte[] data, int expected_length)
{
if (Connected)
{
FT_STATUS status = 0;
uint length = 0;
//int bytes_to_read = 1;
int bytes_read = 0;
//unsigned char byte = 0;
byte[] buffer = new byte[600];
byte[] singleBuff = new byte[1];
singleBuff[0] = (byte)0;
// Check for Start Code and matching Label
while (singleBuff[0] != label)
{
while (singleBuff[0] != DMX_START_CODE)
{
status = read(handle, singleBuff, ONE_BYTE, ref bytes_read);
if (bytes_read == 0) return NO_RESPONSE;
}
status = read(handle, singleBuff, ONE_BYTE, ref bytes_read);
if (bytes_read == 0) return NO_RESPONSE;
}
// Read the rest of the Header Byte by Byte -- Get Length
status = read(handle, singleBuff, ONE_BYTE, ref bytes_read);
if (bytes_read == 0) return NO_RESPONSE;
length = singleBuff[0];
status = read(handle, singleBuff, ONE_BYTE, ref bytes_read);
if (status != FT_STATUS.FT_OK) return NO_RESPONSE;
length += ((uint)singleBuff[0]) << BYTE_LENGTH;
// Check Length is not greater than allowed
if (length > DMX_PACKET_SIZE)
return NO_RESPONSE;
// Read the actual Response Data
status = read(handle, buffer, (int)length, ref bytes_read);
if (bytes_read != length) return NO_RESPONSE;
// Check The End Code
status = read(handle, singleBuff, ONE_BYTE, ref bytes_read);
if (bytes_read == 0) return NO_RESPONSE;
if (singleBuff[0] != DMX_END_CODE) return NO_RESPONSE;
// Copy The Data read to the buffer passed
Array.ConstrainedCopy(buffer, 0, data, 0, data.Length);
//Console.WriteLine("Read: {0}", Sniper.Common.Conversion.ToHex(true, data));
return true;
}
return false;
}
protected enum FT_STATUS
{
FT_OK = 0,
FT_INVALID_HANDLE,
FT_DEVICE_NOT_FOUND,
FT_DEVICE_NOT_OPENED,
FT_IO_ERROR,
FT_INSUFFICIENT_RESOURCES,
FT_INVALID_PARAMETER,
FT_INVALID_BAUD_RATE,
FT_DEVICE_NOT_OPENED_FOR_ERASE,
FT_DEVICE_NOT_OPENED_FOR_WRITE,
FT_FAILED_TO_WRITE_DEVICE,
FT_EEPROM_READ_FAILED,
FT_EEPROM_WRITE_FAILED,
FT_EEPROM_ERASE_FAILED,
FT_EEPROM_NOT_PRESENT,
FT_EEPROM_NOT_PROGRAMMED,
FT_INVALID_ARGS,
FT_OTHER_ERROR
};
private enum FT_DEVICE
{
FT_DEVICE_BM,
FT_DEVICE_AM,
FT_DEVICE_100AX,
FT_DEVICE_UNKNOWN,
FT_DEVICE_2232C
};
}
}