Hardware/TBalancer/TBalancerGroup.cs
author moel.mich
Sat, 15 May 2010 14:16:00 +0000
changeset 118 407f98562c3b
parent 51 e5fc5fd57dbe
child 131 b68cb7c8d5ce
permissions -rw-r--r--
Added a sensor type Control (with unit percent) for (fan) PWM control sensors. Fixed Issue 2.
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/*
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  Version: MPL 1.1/GPL 2.0/LGPL 2.1
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  The contents of this file are subject to the Mozilla Public License Version
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  1.1 (the "License"); you may not use this file except in compliance with
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  the License. You may obtain a copy of the License at
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  http://www.mozilla.org/MPL/
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  Software distributed under the License is distributed on an "AS IS" basis,
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  WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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  for the specific language governing rights and limitations under the License.
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  The Original Code is the Open Hardware Monitor code.
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  The Initial Developer of the Original Code is 
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  Michael Möller <m.moeller@gmx.ch>.
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  Portions created by the Initial Developer are Copyright (C) 2009-2010
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  the Initial Developer. All Rights Reserved.
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  Contributor(s):
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  Alternatively, the contents of this file may be used under the terms of
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  either the GNU General Public License Version 2 or later (the "GPL"), or
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  the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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  in which case the provisions of the GPL or the LGPL are applicable instead
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  of those above. If you wish to allow use of your version of this file only
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  under the terms of either the GPL or the LGPL, and not to allow others to
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  use your version of this file under the terms of the MPL, indicate your
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  decision by deleting the provisions above and replace them with the notice
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  and other provisions required by the GPL or the LGPL. If you do not delete
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  the provisions above, a recipient may use your version of this file under
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  the terms of any one of the MPL, the GPL or the LGPL.
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*/
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.IO.Ports;
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using System.Text;
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using System.Threading;
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namespace OpenHardwareMonitor.Hardware.TBalancer {
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  public class TBalancerGroup : IGroup {
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    private List<TBalancer> hardware = new List<TBalancer>();
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    private StringBuilder report = new StringBuilder();
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    public TBalancerGroup() {
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      uint numDevices;
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      try {
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        FTD2XX.FT_CreateDeviceInfoList(out numDevices);
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      } catch (DllNotFoundException) { return; } 
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        catch (ArgumentNullException) { return; }
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      FT_DEVICE_INFO_NODE[] info = new FT_DEVICE_INFO_NODE[numDevices];
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      FTD2XX.FT_GetDeviceInfoList(info, ref numDevices);
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      for (int i = 0; i < numDevices; i++) {
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        report.Append("Device Index: "); report.AppendLine(i.ToString());
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        FT_HANDLE handle;
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        FT_STATUS status;
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        status = FTD2XX.FT_Open(i, out handle);
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        if (status != FT_STATUS.FT_OK) {
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          report.AppendLine("Open Status: " + status);
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          continue;
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        }
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        FTD2XX.FT_SetBaudRate(handle, 19200);
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        FTD2XX.FT_SetDataCharacteristics(handle, 8, 1, 0);
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        FTD2XX.FT_SetFlowControl(handle, FT_FLOW_CONTROL.FT_FLOW_RTS_CTS, 0x11, 
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          0x13);
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        FTD2XX.FT_SetTimeouts(handle, 1000, 1000);
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        FTD2XX.FT_Purge(handle, FT_PURGE.FT_PURGE_ALL);
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        status = FTD2XX.Write(handle, new byte[] { 0x38 });
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        if (status != FT_STATUS.FT_OK) {
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          report.AppendLine("Write Status: " + status);
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          FTD2XX.FT_Close(handle);
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          continue;
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        }
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        bool isValid = false;
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        byte protocolVersion = 0;
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        int j = 0;
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        while (FTD2XX.BytesToRead(handle) == 0 && j < 2) {
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          Thread.Sleep(100);
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          j++;
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        }
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        if (FTD2XX.BytesToRead(handle) > 0) {
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          if (FTD2XX.ReadByte(handle) == TBalancer.STARTFLAG) {
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            while (FTD2XX.BytesToRead(handle) < 284 && j < 5) {
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              Thread.Sleep(100);
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              j++;
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            }
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            int length = FTD2XX.BytesToRead(handle);
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            if (length >= 284) {
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              byte[] data = new byte[285];
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              data[0] = TBalancer.STARTFLAG;
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              for (int k = 1; k < data.Length; k++)
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                data[k] = FTD2XX.ReadByte(handle);
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              // check protocol version 2X (protocols seen: 2C, 2A, 28)
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              isValid = (data[274] & 0xF0) == 0x20;
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              protocolVersion = data[274];
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              if (!isValid) {
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                report.Append("Status: Wrong Protocol Version: 0x");
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                report.AppendLine(protocolVersion.ToString("X"));
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              }
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            } else {
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              report.AppendLine("Status: Wrong Message Length: " + length);
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            }
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          } else {
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            report.AppendLine("Status: Wrong Startflag");
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          }
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        } else {
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          report.AppendLine("Status: No Response");
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        }
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        FTD2XX.FT_Purge(handle, FT_PURGE.FT_PURGE_ALL);
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        FTD2XX.FT_Close(handle);
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        if (isValid) {
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          report.AppendLine("Status: OK");
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          hardware.Add(new TBalancer(i, protocolVersion));
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          return;
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        }
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        report.AppendLine();
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      }
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    }
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    public IHardware[] Hardware {
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      get {
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        return hardware.ToArray();
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      }
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    }
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    public string GetReport() {
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      if (report.Length > 0) {
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        report.Insert(0, "FTD2XX" + Environment.NewLine +
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          Environment.NewLine);
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        report.AppendLine();
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        return report.ToString();
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      } else
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        return null;
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    }
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    public void Close() {
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      foreach (TBalancer tbalancer in hardware)
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        tbalancer.Close();
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    }
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  }
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}