moel@171: /*
moel@171:   
moel@171:   Version: MPL 1.1/GPL 2.0/LGPL 2.1
moel@171: 
moel@171:   The contents of this file are subject to the Mozilla Public License Version
moel@171:   1.1 (the "License"); you may not use this file except in compliance with
moel@171:   the License. You may obtain a copy of the License at
moel@171:  
moel@171:   http://www.mozilla.org/MPL/
moel@171: 
moel@171:   Software distributed under the License is distributed on an "AS IS" basis,
moel@171:   WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
moel@171:   for the specific language governing rights and limitations under the License.
moel@171: 
moel@171:   The Original Code is the Open Hardware Monitor code.
moel@171: 
moel@171:   The Initial Developer of the Original Code is 
moel@171:   Michael Möller <m.moeller@gmx.ch>.
moel@261:   Portions created by the Initial Developer are Copyright (C) 2010-2011
moel@171:   the Initial Developer. All Rights Reserved.
moel@171: 
moel@171:   Contributor(s):
moel@171: 
moel@171:   Alternatively, the contents of this file may be used under the terms of
moel@171:   either the GNU General Public License Version 2 or later (the "GPL"), or
moel@171:   the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
moel@171:   in which case the provisions of the GPL or the LGPL are applicable instead
moel@171:   of those above. If you wish to allow use of your version of this file only
moel@171:   under the terms of either the GPL or the LGPL, and not to allow others to
moel@171:   use your version of this file under the terms of the MPL, indicate your
moel@171:   decision by deleting the provisions above and replace them with the notice
moel@171:   and other provisions required by the GPL or the LGPL. If you do not delete
moel@171:   the provisions above, a recipient may use your version of this file under
moel@171:   the terms of any one of the MPL, the GPL or the LGPL.
moel@171:  
moel@171: */
moel@171: 
moel@171: using System;
moel@182: using System.Globalization;
moel@171: using System.IO;
moel@171: using System.IO.Ports;
moel@171: using System.Text;
moel@171: using System.Text.RegularExpressions;
moel@171: using System.Threading;
moel@171: 
moel@171: namespace OpenHardwareMonitor.Hardware.Heatmaster {
moel@182:   internal class Heatmaster : Hardware, IDisposable {
moel@171: 
moel@195:     private readonly string portName;
moel@171:     private SerialPort serialPort;
moel@171: 
moel@195:     private readonly int hardwareRevision;
moel@195:     private readonly int firmwareRevision;
moel@195:     private readonly int firmwareCRC;
moel@171: 
moel@195:     private readonly Sensor[] fans;
moel@195:     private readonly Sensor[] controls;
moel@195:     private readonly Sensor[] temperatures;
moel@195:     private readonly Sensor[] flows;
moel@195:     private readonly Sensor[] relays;
moel@171:     
moel@195:     private readonly bool available;
moel@171: 
moel@195:     private readonly StringBuilder buffer = new StringBuilder();
moel@172: 
moel@171:     private string ReadLine(int timeout) {
moel@171:       int i = 0;
moel@171:       StringBuilder builder = new StringBuilder();
moel@171:       while (i <= timeout) {
moel@171:         while (serialPort.BytesToRead > 0) {
moel@171:           byte b = (byte)serialPort.ReadByte();
moel@171:           switch (b) {
moel@171:             case 0xAA: return ((char)b).ToString();
moel@171:             case 0x0D: return builder.ToString();
moel@171:             default: builder.Append((char)b); break;
moel@171:           }
moel@171:         }
moel@171:         i++;
moel@171:         Thread.Sleep(1);
moel@171:       }
moel@171:       throw new TimeoutException();
moel@171:     }
moel@171: 
moel@171:     private string ReadField(int device, char field) {
moel@171:       serialPort.WriteLine("[0:" + device + "]R" + field);
moel@171:       for (int i = 0; i < 5; i++) {
moel@172:         string s = ReadLine(200);
moel@182:         Match match = Regex.Match(s, @"-\[0:" + 
moel@182:           device.ToString(CultureInfo.InvariantCulture) + @"\]R" +
moel@182:           Regex.Escape(field.ToString(CultureInfo.InvariantCulture)) + ":(.*)");
moel@171:         if (match.Success) 
moel@171:           return match.Groups[1].Value;
moel@171:       }
moel@171:       return null;
moel@171:     }
moel@171: 
moel@195:     protected string ReadString(int device, char field) {
moel@171:       string s = ReadField(device, field);
moel@171:       if (s != null && s[0] == '"' && s[s.Length - 1] == '"')
moel@171:         return s.Substring(1, s.Length - 2);
moel@171:       else
moel@171:         return null;
moel@171:     }
moel@171: 
moel@195:     protected int ReadInteger(int device, char field) {
moel@171:       string s = ReadField(device, field);      
moel@171:       int i;
moel@171:       if (int.TryParse(s, out i))
moel@171:         return i;
moel@171:       else
moel@171:         return 0;
moel@171:     }
moel@171: 
moel@171:     private bool WriteField(int device, char field, string value) {
moel@171:       serialPort.WriteLine("[0:" + device + "]W" + field + ":" + value);
moel@171:       for (int i = 0; i < 5; i++) {
moel@172:         string s = ReadLine(200);
moel@182:         Match match = Regex.Match(s, @"-\[0:" + 
moel@182:           device.ToString(CultureInfo.InvariantCulture) + @"\]W" + 
moel@182:           Regex.Escape(field.ToString(CultureInfo.InvariantCulture)) +
moel@182:           ":" + value);
moel@171:         if (match.Success)
moel@171:           return true;
moel@171:       }
moel@171:       return false;
moel@171:     }
moel@171: 
moel@195:     protected bool WriteInteger(int device, char field, int value) {
moel@182:       return WriteField(device, field, 
moel@182:         value.ToString(CultureInfo.InvariantCulture));
moel@171:     }
moel@171: 
moel@195:     protected bool WriteString(int device, char field, string value) {
moel@171:       return WriteField(device, field, '"' + value + '"');
moel@171:     }
moel@171: 
moel@275:     public Heatmaster(string portName, ISettings settings) 
moel@275:       : base("Heatmaster", new Identifier("heatmaster",
moel@275:         portName.TrimStart(new [] {'/'}).ToLowerInvariant()), settings)
moel@275:     {
moel@171:       this.portName = portName;
moel@171:       try {
moel@171:         serialPort = new SerialPort(portName, 38400, Parity.None, 8,
moel@171:           StopBits.One);
moel@171:         serialPort.Open();
moel@171:         serialPort.NewLine = ((char)0x0D).ToString();
moel@171:         
moel@171:         hardwareRevision = ReadInteger(0, 'H');
moel@171:         firmwareRevision = ReadInteger(0, 'V');
moel@171:         firmwareCRC = ReadInteger(0, 'C');
moel@171: 
moel@173:         int fanCount = Math.Min(ReadInteger(32, '?'), 4);
moel@173:         int temperatureCount = Math.Min(ReadInteger(48, '?'), 6);
moel@173:         int flowCount = Math.Min(ReadInteger(64, '?'), 1);
moel@173:         int relayCount =  Math.Min(ReadInteger(80, '?'), 1);
moel@171: 
moel@171:         fans = new Sensor[fanCount];
moel@171:         controls = new Sensor[fanCount];
moel@171:         for (int i = 0; i < fanCount; i++) {
moel@171:           int device = 33 + i;
moel@171:           string name = ReadString(device, 'C');
moel@171:           fans[i] = new Sensor(name, device, SensorType.Fan, this, settings);          
moel@171:           fans[i].Value = ReadInteger(device, 'R');
moel@171:           ActivateSensor(fans[i]);
moel@171:           controls[i] =
moel@171:             new Sensor(name, device, SensorType.Control, this, settings);
moel@171:           controls[i].Value = (100 / 255.0f) * ReadInteger(device, 'P');
moel@171:           ActivateSensor(controls[i]);
moel@195:         }       
moel@171: 
moel@171:         temperatures = new Sensor[temperatureCount];
moel@171:         for (int i = 0; i < temperatureCount; i++) {
moel@171:           int device = 49 + i;
moel@171:           string name = ReadString(device, 'C');
moel@171:           temperatures[i] =
moel@171:             new Sensor(name, device, SensorType.Temperature, this, settings);
moel@171:           int value = ReadInteger(device, 'T');
moel@171:           temperatures[i].Value = 0.1f * value;
moel@171:           if (value != -32768)
moel@171:             ActivateSensor(temperatures[i]);
moel@171:         }
moel@171: 
moel@171:         flows = new Sensor[flowCount];
moel@171:         for (int i = 0; i < flowCount; i++) {
moel@171:           int device = 65 + i;
moel@171:           string name = ReadString(device, 'C');
moel@171:           flows[i] = new Sensor(name, device, SensorType.Flow, this, settings);
moel@171:           flows[i].Value = 0.1f * ReadInteger(device, 'L');
moel@171:           ActivateSensor(flows[i]);
moel@171:         }
moel@171: 
moel@171:         relays = new Sensor[relayCount];
moel@171:         for (int i = 0; i < relayCount; i++) {
moel@171:           int device = 81 + i;
moel@171:           string name = ReadString(device, 'C');
moel@171:           relays[i] = 
moel@171:             new Sensor(name, device, SensorType.Control, this, settings);
moel@171:           relays[i].Value = 100 * ReadInteger(device, 'S');
moel@171:           ActivateSensor(relays[i]);
moel@171:         }
moel@171: 
moel@171:         // set the update rate to 2 Hz
moel@171:         WriteInteger(0, 'L', 2);
moel@171:         
moel@171:         available = true;
moel@171: 
moel@171:       } catch (IOException) { } catch (TimeoutException) { }      
moel@171:     }
moel@171: 
moel@171:     public override HardwareType HardwareType {
moel@171:       get { return HardwareType.Heatmaster; }
moel@171:     }
moel@171: 
moel@172:     private void ProcessUpdateLine(string line) {
moel@172:       Match match = Regex.Match(line, @">\[0:(\d+)\]([0-9:\|-]+)");
moel@172:       if (match.Success) {
moel@172:         int device;
moel@172:         if (int.TryParse(match.Groups[1].Value, out device)) {
moel@172:           foreach (string s in match.Groups[2].Value.Split('|')) {
moel@172:             string[] strings = s.Split(':');
moel@260:             int[] ints = new int[strings.Length];            
moel@260:             bool valid = true;
moel@172:             for (int i = 0; i < ints.Length; i++)
moel@260:               if (!int.TryParse(strings[i], out ints[i])) {
moel@260:                 valid = false;
moel@260:                 break;
moel@260:               }
moel@260:             if (!valid)
moel@260:               continue; 
moel@172:             switch (device) {
moel@172:               case 32:
moel@172:                 if (ints.Length == 3 && ints[0] <= fans.Length) {
moel@172:                   fans[ints[0] - 1].Value = ints[1];
moel@172:                   controls[ints[0] - 1].Value = (100 / 255.0f) * ints[2];
moel@172:                 }
moel@172:                 break;
moel@172:               case 48:
moel@172:                 if (ints.Length == 2 && ints[0] <= temperatures.Length)
moel@172:                   temperatures[ints[0] - 1].Value = 0.1f * ints[1];
moel@172:                 break;
moel@172:               case 64:
moel@172:                 if (ints.Length == 3 && ints[0] <= flows.Length)
moel@172:                   flows[ints[0] - 1].Value = 0.1f * ints[1];
moel@172:                 break;
moel@172:               case 80:
moel@172:                 if (ints.Length == 2 && ints[0] <= relays.Length)
moel@172:                   relays[ints[0] - 1].Value = 100 * ints[1];
moel@172:                 break;
moel@172:             }
moel@172:           }
moel@172:         }
moel@172:       }
moel@172:     }
moel@172: 
moel@171:     public override void Update() {
moel@171:       if (!available)
moel@171:         return;
moel@171: 
moel@261:       while (serialPort.IsOpen &&  serialPort.BytesToRead > 0) {
moel@172:         byte b = (byte)serialPort.ReadByte();
moel@172:         if (b == 0x0D) {
moel@172:           ProcessUpdateLine(buffer.ToString());
moel@172:           buffer.Length = 0;
moel@172:         } else {
moel@172:           buffer.Append((char)b);
moel@171:         }
moel@171:       }
moel@171:     }
moel@171: 
moel@171:     public override string GetReport() {
moel@171:       StringBuilder r = new StringBuilder();
moel@171: 
moel@171:       r.AppendLine("Heatmaster");
moel@171:       r.AppendLine();
moel@171:       r.Append("Port: ");
moel@171:       r.AppendLine(portName);
moel@171:       r.Append("Hardware Revision: ");
moel@182:       r.AppendLine(hardwareRevision.ToString(CultureInfo.InvariantCulture));
moel@171:       r.Append("Firmware Revision: ");
moel@182:       r.AppendLine(firmwareRevision.ToString(CultureInfo.InvariantCulture));
moel@171:       r.Append("Firmware CRC: ");
moel@182:       r.AppendLine(firmwareCRC.ToString(CultureInfo.InvariantCulture));
moel@171:       r.AppendLine();
moel@171: 
moel@171:       return r.ToString();
moel@171:     }
moel@171: 
moel@171:     public void Close() {
moel@171:       serialPort.Close();
moel@182:       serialPort.Dispose();
moel@182:       serialPort = null;
moel@182:     }
moel@182: 
moel@182:     public void Dispose() {
moel@182:       if (serialPort != null) {
moel@182:         serialPort.Dispose();
moel@182:         serialPort = null;
moel@182:       }
moel@171:     }
moel@171:   }
moel@171: }