feat: 添加接收处理函数

LoraGamepad/LoraGamepad.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
-        <OutputType>WinExe</OutputType>
+        <OutputType>Exe</OutputType>
         <TargetFramework>net6.0</TargetFramework>
         <Nullable>enable</Nullable>
         <!--Avalonia doesen't support TrimMode=link currently,but we are working on that https://github.com/AvaloniaUI/Avalonia/issues/6892 -->

LoraGamepad/Util/CrcUtil.cs

@@ -0,0 +1,40 @@
+namespace LoraGamepad.Util;
+
+public class CrcUtil
+{
+    /// <summary>
+    /// CRC8——MAXIM校验字节
+    /// </summary>
+    /// <param name="data">带校验数据</param>
+    /// <returns>校验字节</returns>
+    public static byte CRC8_Calculate(byte[] data)  
+    {  
+        byte crc8 = 0;  
+        for( int i = 0 ; i < data.Length; i++){  
+            crc8 = CRC8Table[crc8^data[i]];
+        }  
+        return(crc8);  
+    }
+    
+    /// <summary>
+    /// CRC8——MAXIM校验表
+    /// </summary>
+    private static byte[] CRC8Table = {  
+        0, 94, 188, 226, 97, 63, 221, 131, 194, 156, 126, 32, 163, 253, 31, 65,  
+        157, 195, 33, 127, 252, 162, 64, 30, 95, 1, 227, 189, 62, 96, 130, 220,  
+        35, 125, 159, 193, 66, 28, 254, 160, 225, 191, 93, 3, 128, 222, 60, 98,  
+        190, 224, 2, 92, 223, 129, 99, 61, 124, 34, 192, 158, 29, 67, 161, 255,  
+        70, 24, 250, 164, 39, 121, 155, 197, 132, 218, 56, 102, 229, 187, 89, 7,  
+        219, 133, 103, 57, 186, 228, 6, 88, 25, 71, 165, 251, 120, 38, 196, 154,  
+        101, 59, 217, 135, 4, 90, 184, 230, 167, 249, 27, 69, 198, 152, 122, 36,  
+        248, 166, 68, 26, 153, 199, 37, 123, 58, 100, 134, 216, 91, 5, 231, 185,  
+        140, 210, 48, 110, 237, 179, 81, 15, 78, 16, 242, 172, 47, 113, 147, 205,  
+        17, 79, 173, 243, 112, 46, 204, 146, 211, 141, 111, 49, 178, 236, 14, 80,  
+        175, 241, 19, 77, 206, 144, 114, 44, 109, 51, 209, 143, 12, 82, 176, 238,  
+        50, 108, 142, 208, 83, 13, 239, 177, 240, 174, 76, 18, 145, 207, 45, 115,  
+        202, 148, 118, 40, 171, 245, 23, 73, 8, 86, 180, 234, 105, 55, 213, 139,  
+        87, 9, 235, 181, 54, 104, 138, 212, 149, 203, 41, 119, 244, 170, 72, 22,  
+        233, 183, 85, 11, 136, 214, 52, 106, 43, 117, 151, 201, 74, 20, 246, 168,  
+        116, 42, 200, 150, 21, 75, 169, 247, 182, 232, 10, 84, 215, 137, 107, 53 
+    };
+}

LoraGamepad/Util/IAsyncPipe.cs

@@ -0,0 +1,83 @@
+using System;
+using System.Collections.Concurrent;
+using System.Threading;
+
+namespace LoraGamepad.Util;
+    /// <summary>
+    /// 异步管道
+    /// </summary>
+    /// <typeparam name="T1">流入数据类型</typeparam>
+    /// <typeparam name="T2">流出数据类型</typeparam>
+public abstract class IAsyncPipe<T1, T2> : IPipe<T1, T2> {
+    private readonly ConcurrentQueue<T1> _dataQueue = new();
+    private bool _isWorking;
+    private DateTime _urgeTime;
+    private DateTime _workTime;
+    private readonly string _threadName;
+    private readonly TimeSpan _waitWorkTimeMax;
+    protected IAsyncPipe(string threadName = "IAsyncPipe", long waitWorkMills = 3000) {
+        _threadName = threadName;
+        _waitWorkTimeMax = TimeSpan.FromMilliseconds(waitWorkMills);
+    }
+
+    /// <summary>
+    /// 催工
+    /// </summary>
+    private void UrgeWork() {
+        _urgeTime = DateTime.Now;
+        if (_isWorking) {
+            // 在干活?打扰了..
+            return;
+        }
+
+        _isWorking = true;
+        var thread = new Thread(() => {
+            // 在失业的边缘反复横跳
+            while (!TryStrike()) {
+                // 干活
+                Process(_dataQueue);
+            }
+        }) {
+            IsBackground = true,
+            Name = _threadName
+        };
+        thread.Start();
+    }
+
+    /// <summary>
+    /// 尝试罢工
+    /// </summary>
+    /// <returns>是否罢工成功</returns>
+    private bool TryStrike() {
+        if (!_dataQueue.IsEmpty) {
+            // 有活继续干
+            _workTime = DateTime.Now;
+        } else if (DateTime.Now - _workTime > _waitWorkTimeMax) {
+            // 闲3秒罢工
+            _isWorking = false;
+        }
+
+        return !_isWorking;
+    }
+
+    protected abstract void Process(ConcurrentQueue<T1> queue);
+
+    public override void Push(T1 pack) {
+        if (pack == null) {
+            return;
+        }
+
+        _dataQueue.Enqueue(pack);
+        UrgeWork();
+    }
+
+    /// <summary>
+    /// 数据是否停止流入达到指定时间
+    /// </summary>
+    /// <param name="time"></param>
+    /// <returns></returns>
+    protected bool IsPushStop(TimeSpan time) {
+        return DateTime.Now - _urgeTime > time;
+    }
+}
+

LoraGamepad/Util/IPipe.cs

@@ -0,0 +1,20 @@
+using System.Collections.Generic;
+
+namespace LoraGamepad.Util;
+/// <summary>
+/// 数据管道基类
+/// </summary>
+/// <typeparam name="T1">入口数据类型</typeparam>
+/// <typeparam name="T2">出口数据类型</typeparam>
+public abstract class IPipe<T1, T2> {
+    public delegate void OutFuncDelegate(T2 data);
+
+    public OutFuncDelegate OnOut;
+    public abstract void Push(T1 data);
+
+    public void Push(IEnumerable<T1> data) {
+        foreach (var x in data) {
+            Push(x);
+        }
+    }
+}

LoraGamepad/Util/SerialPipeIN.cs

@@ -0,0 +1,49 @@
+using System;
+using System.Collections.Concurrent;
+using System.Linq;
+using System.Threading;
+
+namespace LoraGamepad.Util;
+
+public class SerialPipeIn: IAsyncPipe<byte,byte[]>
+{
+    protected override void Process(ConcurrentQueue<byte> queue)
+    {
+        if (!queue.TryPeek(out var first))
+        {
+            SpinWait.SpinUntil(() => false, 1);
+            // 队列无数据
+            return;
+        }
+
+        if (0xFE != first) {
+            // 未匹配到包头,扔掉继续
+            queue.TryDequeue(out _);
+            return;
+        }
+
+        if (queue.Count < 14) {
+            // 数据长度过低
+            return;
+        }
+
+        var pack = queue.Take(14).ToArray();
+        if (pack[13] != CrcUtil.CRC8_Calculate(pack.Skip(1).SkipLast(1).ToArray())) {
+            // crc校验失败，砍头
+            queue.TryDequeue(out _);
+            return;
+        }
+
+        // 队列消除整包数据
+        for (var i = 0; i < 14; i++) {
+            queue.TryDequeue(out _);
+        }
+
+        // 输出数据，砍头砍尾
+        // Console.WriteLine(BitConverter.ToString(pack));
+        OnOut(pack.Skip(1).SkipLast(1).ToArray());
+        
+    }
+    
+    
+}

LoraGamepad/ViewModels/TProViewModel.cs

@@ -1,7 +1,11 @@
+using System;
 using System.Collections.ObjectModel;
+using System.Diagnostics;
 using System.Linq;
 using System.Reactive;
+using System.Threading;
 using LoraGamepad.Models;
+using LoraGamepad.Util;
 using ReactiveUI;
 
 namespace LoraGamepad.ViewModels;
@@ -15,14 +19,34 @@ public class TProViewModel : ViewModelBase
     private ObservableCollection<CBPortItem> _portList = new();
     public CBPortItem PortSelectItem { get; set; }
     
+    private readonly SerialPipeIn _serialPipeIn;
+    
     public ReactiveCommand<Unit, Unit> OpenPort { get; }
     public ReactiveCommand<Unit, Unit> ClosePort { get; }
+
+    public Thread ReadThread;
     public TProViewModel()
     {
         PortList = CBPortItem.GetPortList();
+        _serialPipeIn = new SerialPipeIn();
+        ReadThread = new Thread(ReadThreadEntry);
         
         OpenPort = ReactiveCommand.Create(PortOpenButtonClick);
         ClosePort = ReactiveCommand.Create(PortCloseButtonClick);
+
+    }
+
+    public void ReadThreadEntry()
+    {
+        while (true)
+        {
+            if (SerialPort.Me.TryRead(out var data))
+            {
+                // Console.WriteLine(BitConverter.ToString(data));
+                _serialPipeIn.Push(data);
+            }
+            Thread.Sleep(1);
+        }
     }
     
     /// <summary>
@@ -72,7 +96,7 @@ public class TProViewModel : ViewModelBase
         SerialPort.Me.Open(PortSelectItem.PortName,420000,1000);
         IsOpenPortButtonVisible = false;
         IsClosePortButtonVisible = true;
-        
+        ReadThread.Start();
     }
     
     /// <summary>