moel@171: /*
moel@171:
moel@344: This Source Code Form is subject to the terms of the Mozilla Public
moel@344: License, v. 2.0. If a copy of the MPL was not distributed with this
moel@344: file, You can obtain one at http://mozilla.org/MPL/2.0/.
moel@171:
moel@344: Copyright (C) 2010 Michael Möller <mmoeller@openhardwaremonitor.org>
moel@344:
moel@171: */
moel@171:
moel@171: using System;
moel@171: using System.Collections.Generic;
moel@182: using System.Globalization;
moel@171: using System.IO.Ports;
moel@172: using System.Security;
moel@171: using System.Text;
moel@171: using System.Threading;
moel@172: using Microsoft.Win32;
moel@171:
moel@171: namespace OpenHardwareMonitor.Hardware.Heatmaster {
moel@171: internal class HeatmasterGroup : IGroup {
moel@171:
moel@195: private readonly List<Heatmaster> hardware = new List<Heatmaster>();
moel@195: private readonly StringBuilder report = new StringBuilder();
moel@171:
moel@171: private static string ReadLine(SerialPort port, int timeout) {
moel@171: int i = 0;
moel@171: StringBuilder builder = new StringBuilder();
moel@171: while (i < timeout) {
moel@171: while (port.BytesToRead > 0) {
moel@171: byte b = (byte)port.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@172: }
moel@172:
moel@172: private static string[] GetRegistryPortNames() {
moel@172: List<string> result = new List<string>();
moel@175: string[] paths = { "", "&MI_00" };
moel@172: try {
moel@175: foreach (string path in paths) {
moel@175: RegistryKey key = Registry.LocalMachine.OpenSubKey(
moel@175: @"SYSTEM\CurrentControlSet\Enum\USB\VID_10C4&PID_EA60" + path);
moel@175: if (key != null) {
moel@175: foreach (string subKeyName in key.GetSubKeyNames()) {
moel@175: RegistryKey subKey =
moel@175: key.OpenSubKey(subKeyName + "\\" + "Device Parameters");
moel@175: if (subKey != null) {
moel@175: string name = subKey.GetValue("PortName") as string;
moel@175: if (name != null && !result.Contains(name))
moel@195: result.Add(name);
moel@175: }
moel@172: }
moel@172: }
moel@172: }
moel@172: } catch (SecurityException) { }
moel@172: return result.ToArray();
moel@172: }
moel@171:
moel@171: public HeatmasterGroup(ISettings settings) {
moel@172:
moel@172: // No implementation for Heatmaster on Unix systems
moel@195: int p = (int)Environment.OSVersion.Platform;
moel@172: if ((p == 4) || (p == 128))
moel@172: return;
moel@171:
moel@172: string[] portNames = GetRegistryPortNames();
moel@199: for (int i = 0; i < portNames.Length; i++) {
moel@182: bool isValid = false;
moel@182: try {
moel@182: using (SerialPort serialPort =
moel@182: new SerialPort(portNames[i], 38400, Parity.None, 8, StopBits.One)) {
moel@182: serialPort.NewLine = ((char)0x0D).ToString();
moel@182: report.Append("Port Name: "); report.AppendLine(portNames[i]);
moel@171:
moel@182: try {
moel@182: serialPort.Open();
moel@182: } catch (UnauthorizedAccessException) {
moel@182: report.AppendLine("Exception: Access Denied");
moel@182: }
moel@171:
moel@182: if (serialPort.IsOpen) {
moel@182: serialPort.DiscardInBuffer();
moel@182: serialPort.DiscardOutBuffer();
moel@182: serialPort.Write(new byte[] { 0xAA }, 0, 1);
moel@171:
moel@182: int j = 0;
moel@182: while (serialPort.BytesToRead == 0 && j < 10) {
moel@182: Thread.Sleep(20);
moel@182: j++;
moel@171: }
moel@182: if (serialPort.BytesToRead > 0) {
moel@182: bool flag = false;
moel@182: while (serialPort.BytesToRead > 0 && !flag) {
moel@182: flag |= (serialPort.ReadByte() == 0xAA);
moel@182: }
moel@182: if (flag) {
moel@182: serialPort.WriteLine("[0:0]RH");
moel@182: try {
moel@182: int k = 0;
moel@182: int revision = 0;
moel@182: while (k < 5) {
moel@182: string line = ReadLine(serialPort, 100);
moel@182: if (line.StartsWith("-[0:0]RH:",
moel@182: StringComparison.Ordinal)) {
moel@182: revision = int.Parse(line.Substring(9),
moel@182: CultureInfo.InvariantCulture);
moel@182: break;
moel@182: }
moel@182: k++;
moel@171: }
moel@182: isValid = (revision == 770);
moel@182: if (!isValid) {
moel@182: report.Append("Status: Wrong Hardware Revision " +
moel@182: revision.ToString(CultureInfo.InvariantCulture));
moel@182: }
moel@182: } catch (TimeoutException) {
moel@182: report.AppendLine("Status: Timeout Reading Revision");
moel@171: }
moel@182: } else {
moel@182: report.AppendLine("Status: Wrong Startflag");
moel@171: }
moel@171: } else {
moel@182: report.AppendLine("Status: No Response");
moel@171: }
moel@182: serialPort.DiscardInBuffer();
moel@171: } else {
moel@182: report.AppendLine("Status: Port not Open");
moel@182: }
moel@171: }
moel@171: } catch (Exception e) {
moel@171: report.AppendLine(e.ToString());
moel@182: }
moel@182:
moel@182: if (isValid) {
moel@182: report.AppendLine("Status: OK");
moel@182: hardware.Add(new Heatmaster(portNames[i], settings));
moel@182: }
moel@171: report.AppendLine();
moel@171: }
moel@171: }
moel@171:
moel@171: public IHardware[] Hardware {
moel@171: get {
moel@171: return hardware.ToArray();
moel@171: }
moel@171: }
moel@171:
moel@171: public string GetReport() {
moel@171: if (report.Length > 0) {
moel@256: StringBuilder r = new StringBuilder();
moel@256: r.AppendLine("Serial Port Heatmaster");
moel@256: r.AppendLine();
moel@256: r.Append(report);
moel@256: r.AppendLine();
moel@256: return r.ToString();
moel@171: } else
moel@171: return null;
moel@171: }
moel@171:
moel@171: public void Close() {
moel@171: foreach (Heatmaster heatmaster in hardware)
moel@171: heatmaster.Close();
moel@171: }
moel@171: }
moel@171: }