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Imre Kincses
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Added multi platform project
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‎Raspberry.System.Core/Board.cs‎

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#region References
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.IO;
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#endregion
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namespace Raspberry
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{
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/// <summary>
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/// Represents the Raspberry Pi mainboard.
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/// </summary>
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/// <remarks>
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/// Version and revisions are based on <see cref="http://raspberryalphaomega.org.uk/2013/02/06/automatic-raspberry-pi-board-revision-detection-model-a-b1-and-b2/"/>.
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/// <see cref="http://www.raspberrypi-spy.co.uk/2012/09/checking-your-raspberry-pi-board-version/"/> for information.
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/// </remarks>
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public class Board
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{
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#region Fields
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private static readonly Lazy<Board> board = new Lazy<Board>(LoadBoard);
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private readonly Dictionary<string, string> settings;
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private readonly Lazy<Model> model;
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private readonly Lazy<ConnectorPinout> connectorPinout;
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#endregion
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#region Instance Management
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private Board(Dictionary<string, string> settings)
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{
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model = new Lazy<Model>(LoadModel);
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connectorPinout = new Lazy<ConnectorPinout>(LoadConnectorPinout);
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this.settings = settings;
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}
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#endregion
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#region Properties
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/// <summary>
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/// Gets the current mainboard configuration.
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/// </summary>
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public static Board Current
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{
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get { return board.Value; }
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}
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/// <summary>
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/// Gets a value indicating whether this instance is a Raspberry Pi.
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/// </summary>
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/// <value>
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/// <c>true</c> if this instance is a Raspberry Pi; otherwise, <c>false</c>.
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/// </value>
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public bool IsRaspberryPi
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{
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get
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{
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return Processor != Processor.Unknown;
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}
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}
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/// <summary>
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/// Gets the processor name.
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/// </summary>
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/// <value>
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/// The name of the processor.
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/// </value>
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public string ProcessorName
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{
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get
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{
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string hardware;
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return settings.TryGetValue("Hardware", out hardware) ? hardware : null;
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}
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}
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/// <summary>
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/// Gets the processor.
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/// </summary>
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/// <value>
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/// The processor.
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/// </value>
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public Processor Processor
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{
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get
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{
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Processor processor;
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if (Enum.TryParse(ProcessorName, true, out processor))
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{
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// Check to see if we're dealing with a Pi 4 Model B
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// The Pi 4 Model B currently lies to us and tells us that it's a BCM2835
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if (processor == Processor.Bcm2835 && Model == Model.Pi4)
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processor = Processor.Bcm2711;
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return processor;
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}
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return Processor.Unknown;
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}
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}
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/// <summary>
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/// Gets the board firmware version.
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/// </summary>
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public int Firmware
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{
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get
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{
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string revision;
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int firmware;
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if (settings.TryGetValue("Revision", out revision)
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&& !string.IsNullOrEmpty(revision)
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&& int.TryParse(revision, NumberStyles.HexNumber, CultureInfo.InvariantCulture, out firmware))
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return firmware;
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return 0;
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}
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}
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/// <summary>
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/// Gets the serial number.
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/// </summary>
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public string SerialNumber
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{
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get
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{
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string serial;
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if (settings.TryGetValue("Serial", out serial)
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&& !string.IsNullOrEmpty(serial))
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return serial;
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return null;
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}
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}
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/// <summary>
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/// Gets a value indicating whether Raspberry Pi board is overclocked.
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/// </summary>
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/// <value>
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/// <c>true</c> if Raspberry Pi is overclocked; otherwise, <c>false</c>.
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/// </value>
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public bool IsOverclocked
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{
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get
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{
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var firmware = Firmware;
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return (firmware & 0xFFFF0000) != 0;
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}
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}
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/// <summary>
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/// Gets the model.
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/// </summary>
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/// <value>
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/// The model.
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/// </value>
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public Model Model
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{
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get { return model.Value; }
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}
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/// <summary>
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/// Gets the connector revision.
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/// </summary>
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/// <value>
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/// The connector revision.
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/// </value>
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/// <remarks>See <see cref="http://raspi.tv/2014/rpi-gpio-quick-reference-updated-for-raspberry-pi-b"/> for more information.</remarks>
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public ConnectorPinout ConnectorPinout
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{
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get { return connectorPinout.Value; }
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}
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#endregion
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#region Private Helpers
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private static Board LoadBoard()
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{
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try
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{
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const string filePath = "/proc/cpuinfo";
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var cpuInfo = File.ReadAllLines(filePath);
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var settings = new Dictionary<string, string>();
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var suffix = string.Empty;
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foreach (var l in cpuInfo)
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{
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var separator = l.IndexOf(':');
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if (!string.IsNullOrWhiteSpace(l) && separator > 0)
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{
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var key = l.Substring(0, separator).Trim();
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var val = l.Substring(separator + 1).Trim();
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if (string.Equals(key, "processor", StringComparison.InvariantCultureIgnoreCase))
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suffix = "." + val;
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settings.Add(key + suffix, val);
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}
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else
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suffix = "";
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}
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return new Board(settings);
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}
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catch
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{
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return new Board(new Dictionary<string, string>());
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}
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}
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private Model LoadModel()
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{
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var firmware = Firmware;
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switch (firmware & 0xFFFF)
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{
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case 0x2:
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case 0x3:
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return Model.BRev1;
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case 0x4:
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case 0x5:
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case 0x6:
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case 0xd:
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case 0xe:
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case 0xf:
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return Model.BRev2;
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case 0x7:
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case 0x8:
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case 0x9:
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return Model.A;
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case 0x10:
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return Model.BPlus;
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case 0x11:
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return Model.ComputeModule;
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case 0x12:
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return Model.APlus;
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case 0x1040:
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case 0x1041:
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return Model.B2;
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case 0x0092:
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case 0x0093:
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return Model.Zero;
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case 0x2082:
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return Model.B3;
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case 0x03111:
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return Model.Pi4;
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default:
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return Model.Unknown;
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}
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}
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private ConnectorPinout LoadConnectorPinout()
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{
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switch (Model)
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{
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case Model.BRev1:
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return ConnectorPinout.Rev1;
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case Model.BRev2:
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case Model.A:
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return ConnectorPinout.Rev2;
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case Model.BPlus:
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case Model.ComputeModule:
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case Model.APlus:
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case Model.B2:
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case Model.Zero:
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case Model.B3:
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case Model.Pi4:
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return ConnectorPinout.Plus;
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default:
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return ConnectorPinout.Unknown;
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}
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}
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#endregion
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}
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}

‎Raspberry.System.Core/ConnectorPinout.cs‎

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namespace Raspberry
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{
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/// <summary>
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/// The Raspberry Pi connector pinout revision.
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/// </summary>
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public enum ConnectorPinout
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{
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/// <summary>
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/// Connector pinout is unknown.
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/// </summary>
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Unknown,
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/// <summary>
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/// The first revision, as of Model B rev1.
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/// </summary>
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Rev1,
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/// <summary>
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/// The second revision, as of Model B rev2.
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/// </summary>
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Rev2,
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/// <summary>
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/// The third revision, as of Model B+.
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/// </summary>
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Plus,
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}
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}

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