Hardware/TBalancer/TBalancerGroup.cs
author moel.mich
Sun, 07 Feb 2010 20:11:30 +0000
changeset 32 a7f5e400f0da
parent 1 361e324a0ed4
child 33 800a36a1ca8e
permissions -rw-r--r--
Release version 0.1.14. Added more report details for T-Balancer bigNG.
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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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      string[] portNames = SerialPort.GetPortNames();      
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      for (int i = portNames.Length - 1; i >= 0; i--) {
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        try {
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          SerialPort serialPort =
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            new SerialPort(portNames[i], 19200, Parity.None, 8, StopBits.One);
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          serialPort.Open();
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          bool isValid = false;
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          if (serialPort.IsOpen && serialPort.CDHolding &&
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            serialPort.CtsHolding) {
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            report.Append("Port name: "); report.AppendLine(portNames[i]);            
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            serialPort.DiscardInBuffer();
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            serialPort.DiscardOutBuffer();
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            serialPort.Write(new byte[] { 0x38 }, 0, 1);
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            int j = 0;
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            while (serialPort.BytesToRead == 0 && j < 2) {
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              Thread.Sleep(100);
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              j++;
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            }
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            if (serialPort.BytesToRead > 0 &&
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              serialPort.ReadByte() == TBalancer.STARTFLAG) {
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              while (serialPort.BytesToRead < 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 = serialPort.BytesToRead;
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              if (length >= 284) {
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                int[] data = new int[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] = serialPort.ReadByte();
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                // check protocol version
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                isValid = (data[274] == TBalancer.PROTOCOL_VERSION);
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                if (!isValid) {
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                  report.Append("Status: Wrong Protocol Version: 0x");
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                  report.AppendLine(data[274].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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          }
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          serialPort.DiscardInBuffer();
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          serialPort.Close();
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          if (isValid) {
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            report.AppendLine("Status: OK");
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            hardware.Add(new TBalancer(portNames[i]));
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            return;
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          }
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        } catch (IOException ioe) {
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          report.AppendLine(ioe.ToString());
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        } catch (UnauthorizedAccessException uae) {
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          report.AppendLine(uae.ToString());
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        } catch (NullReferenceException ne) {
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          report.AppendLine(ne.ToString());
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        }
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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, "Serial Port T-Balancer" + 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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}