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// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
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// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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// Copyright (C) LibreHardwareMonitor and Contributors.
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// Partial Copyright (C) Michael Möller <mmoeller@openhardwaremonitor.org> and Contributors.
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// All Rights Reserved.
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using System;
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using System.Globalization;
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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.Text.RegularExpressions;
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using System.Threading;
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namespace LibreHardwareMonitor.Hardware.Controller.Heatmaster;
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internal sealed class Heatmaster : Hardware, IDisposable
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{
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private readonly bool _available;
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private readonly StringBuilder _buffer = new();
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private readonly Sensor[] _controls;
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private readonly Sensor[] _fans;
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private readonly int _firmwareCrc;
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private readonly int _firmwareRevision;
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private readonly Sensor[] _flows;
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private readonly int _hardwareRevision;
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private readonly string _portName;
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private readonly Sensor[] _relays;
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private readonly Sensor[] _temperatures;
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private SerialPort _serialPort;
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public Heatmaster(string portName, ISettings settings) : base("Heatmaster", new Identifier("heatmaster", portName.TrimStart('/').ToLowerInvariant()), settings)
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{
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_portName = portName;
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try
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{
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_serialPort = new SerialPort(portName, 38400, Parity.None, 8, StopBits.One);
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_serialPort.Open();
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_serialPort.NewLine = ((char)0x0D).ToString();
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_hardwareRevision = ReadInteger(0, 'H');
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_firmwareRevision = ReadInteger(0, 'V');
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_firmwareCrc = ReadInteger(0, 'C');
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int fanCount = Math.Min(ReadInteger(32, '?'), 4);
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int temperatureCount = Math.Min(ReadInteger(48, '?'), 6);
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int flowCount = Math.Min(ReadInteger(64, '?'), 1);
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int relayCount = Math.Min(ReadInteger(80, '?'), 1);
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_fans = new Sensor[fanCount];
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_controls = new Sensor[fanCount];
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for (int i = 0; i < fanCount; i++)
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{
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int device = 33 + i;
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string name = ReadString(device, 'C');
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_fans[i] = new Sensor(name, device, SensorType.Fan, this, settings) { Value = ReadInteger(device, 'R') };
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ActivateSensor(_fans[i]);
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_controls[i] = new Sensor(name, device, SensorType.Control, this, settings) { Value = (100 / 255.0f) * ReadInteger(device, 'P') };
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ActivateSensor(_controls[i]);
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}
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_temperatures = new Sensor[temperatureCount];
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for (int i = 0; i < temperatureCount; i++)
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{
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int device = 49 + i;
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string name = ReadString(device, 'C');
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_temperatures[i] = new Sensor(name, device, SensorType.Temperature, this, settings);
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int value = ReadInteger(device, 'T');
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_temperatures[i].Value = 0.1f * value;
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if (value != -32768)
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ActivateSensor(_temperatures[i]);
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}
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_flows = new Sensor[flowCount];
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for (int i = 0; i < flowCount; i++)
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{
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int device = 65 + i;
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string name = ReadString(device, 'C');
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_flows[i] = new Sensor(name, device, SensorType.Flow, this, settings) { Value = 0.1f * ReadInteger(device, 'L') };
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ActivateSensor(_flows[i]);
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}
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_relays = new Sensor[relayCount];
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for (int i = 0; i < relayCount; i++)
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{
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int device = 81 + i;
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string name = ReadString(device, 'C');
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_relays[i] = new Sensor(name, device, SensorType.Control, this, settings)
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{
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Value = 100 * ReadInteger(device, 'S')
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};
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ActivateSensor(_relays[i]);
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}
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// set the update rate to 2 Hz
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WriteInteger(0, 'L', 2);
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_available = true;
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}
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catch (IOException)
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{ }
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catch (TimeoutException)
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{ }
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}
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public override HardwareType HardwareType
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{
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get { return HardwareType.Cooler; }
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}
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public void Dispose()
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{
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if (_serialPort != null)
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{
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_serialPort.Dispose();
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_serialPort = null;
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}
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}
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private string ReadLine(int timeout)
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{
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int i = 0;
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StringBuilder builder = new();
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while (i <= timeout)
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{
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while (_serialPort.BytesToRead > 0)
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{
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byte b = (byte)_serialPort.ReadByte();
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switch (b)
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{
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case 0xAA: return ((char)b).ToString();
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case 0x0D: return builder.ToString();
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default:
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builder.Append((char)b);
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break;
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}
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}
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i++;
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Thread.Sleep(1);
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}
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throw new TimeoutException();
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}
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private string ReadField(int device, char field)
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{
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_serialPort.WriteLine("[0:" + device + "]R" + field);
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for (int i = 0; i < 5; i++)
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{
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string s = ReadLine(200);
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Match match = Regex.Match(s, @"-\[0:" + device.ToString(CultureInfo.InvariantCulture) + @"\]R" + Regex.Escape(field.ToString(CultureInfo.InvariantCulture)) + ":(.*)");
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if (match.Success)
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return match.Groups[1].Value;
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}
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return null;
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}
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private string ReadString(int device, char field)
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{
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string s = ReadField(device, field);
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if (s?[0] == '"' && s[s.Length - 1] == '"')
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return s.Substring(1, s.Length - 2);
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return null;
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}
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private int ReadInteger(int device, char field)
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{
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string s = ReadField(device, field);
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if (int.TryParse(s, out int i))
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return i;
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return 0;
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}
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private void WriteField(int device, char field, string value)
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{
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_serialPort.WriteLine("[0:" + device + "]W" + field + ":" + value);
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for (int i = 0; i < 5; i++)
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{
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string s = ReadLine(200);
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Match match = Regex.Match(s, @"-\[0:" + device.ToString(CultureInfo.InvariantCulture) + @"\]W" + Regex.Escape(field.ToString(CultureInfo.InvariantCulture)) + ":" + value);
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if (match.Success)
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return;
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}
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}
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private void WriteInteger(int device, char field, int value)
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{
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WriteField(device, field, value.ToString(CultureInfo.InvariantCulture));
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}
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private void ProcessUpdateLine(string line)
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{
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Match match = Regex.Match(line, @">\[0:(\d+)\]([0-9:\|-]+)");
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if (match.Success && int.TryParse(match.Groups[1].Value, out int device))
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{
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foreach (string s in match.Groups[2].Value.Split('|'))
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{
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string[] strings = s.Split(':');
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int[] ints = new int[strings.Length];
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bool valid = true;
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for (int i = 0; i < ints.Length; i++)
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{
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if (!int.TryParse(strings[i], out ints[i]))
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{
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valid = false;
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break;
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}
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}
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if (!valid)
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continue;
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switch (device)
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{
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case 32:
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if (ints.Length == 3 && ints[0] <= _fans.Length)
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{
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_fans[ints[0] - 1].Value = ints[1];
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_controls[ints[0] - 1].Value = (100 / 255.0f) * ints[2];
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}
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break;
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case 48:
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if (ints.Length == 2 && ints[0] <= _temperatures.Length)
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_temperatures[ints[0] - 1].Value = 0.1f * ints[1];
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break;
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case 64:
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if (ints.Length == 3 && ints[0] <= _flows.Length)
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_flows[ints[0] - 1].Value = 0.1f * ints[1];
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break;
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case 80:
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if (ints.Length == 2 && ints[0] <= _relays.Length)
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_relays[ints[0] - 1].Value = 100 * ints[1];
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break;
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}
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}
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}
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}
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public override void Update()
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{
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if (!_available)
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return;
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while (_serialPort.IsOpen && _serialPort.BytesToRead > 0)
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{
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byte b = (byte)_serialPort.ReadByte();
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if (b == 0x0D)
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{
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ProcessUpdateLine(_buffer.ToString());
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_buffer.Length = 0;
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}
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else
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{
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_buffer.Append((char)b);
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}
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}
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}
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public override string GetReport()
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{
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StringBuilder r = new();
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r.AppendLine("Heatmaster");
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r.AppendLine();
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r.Append("Port: ");
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r.AppendLine(_portName);
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r.Append("Hardware Revision: ");
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r.AppendLine(_hardwareRevision.ToString(CultureInfo.InvariantCulture));
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r.Append("Firmware Revision: ");
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r.AppendLine(_firmwareRevision.ToString(CultureInfo.InvariantCulture));
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r.Append("Firmware CRC: ");
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r.AppendLine(_firmwareCrc.ToString(CultureInfo.InvariantCulture));
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r.AppendLine();
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return r.ToString();
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}
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public override void Close()
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{
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_serialPort.Close();
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_serialPort.Dispose();
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_serialPort = null;
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base.Close();
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}
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}
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