Partial work on the SerialPlugin

src/plugins/Plugins.cpp

@@ -1,6 +1,7 @@
 #include "plugins/NodeInfoPlugin.h"
 #include "plugins/PositionPlugin.h"
 #include "plugins/ReplyPlugin.h"
+#include "plugins/SerialPlugin.h"
 #include "plugins/RemoteHardwarePlugin.h"
 #include "plugins/TextMessagePlugin.h"
 
@@ -17,4 +18,5 @@ void setupPlugins() {
 
     new RemoteHardwarePlugin();
     new ReplyPlugin();
+    new SerialPlugin(); // Maintained by MC Hamster (Jm Casler) jm@casler.org
 }

src/plugins/SerialPlugin.cpp

@@ -0,0 +1,133 @@
+#include "SerialPlugin.h"
+#include "MeshService.h"
+#include "NodeDB.h"
+#include "RTC.h"
+#include "Router.h"
+#include "configuration.h"
+#include <Arduino.h>
+
+#include <assert.h>
+
+/*
+    Designed for lora32 v1.0
+        Manufacture Info: http://www.lilygo.cn/prod_view.aspx?TypeId=50003&Id=1133&FId=t3:50003:3
+        Pin Mapping:      http://ae01.alicdn.com/kf/HTB1fLBcxkSWBuNjSszdq6zeSpXaJ.jpg
+*/
+
+#define RXD2 16
+#define TXD2 17
+#define SERIALPLUGIN_RX_BUFFER 128
+#define SERIALPLUGIN_STRING_MAX Constants_DATA_PAYLOAD_LEN
+#define SERIALPLUGIN_TIMEOUT 250
+#define SERIALPLUGIN_BAUD 38400
+#define SERIALPLUGIN_ENABLED 0
+#define SERIALPLUGIN_ECHO 1
+
+SerialPlugin *serialPlugin;
+SerialPluginRadio *serialPluginRadio;
+
+SerialPlugin::SerialPlugin() : concurrency::OSThread("SerialPlugin") {}
+
+char serialStringChar[Constants_DATA_PAYLOAD_LEN];
+
+int32_t SerialPlugin::runOnce()
+{
+
+#if SERIALPLUGIN_ENABLED == 0
+
+    if (firstTime) {
+
+        // Interface with the serial peripheral from in here.
+        DEBUG_MSG("Initilizing serial peripheral interface\n");
+
+        Serial2.begin(SERIALPLUGIN_BAUD, SERIAL_8N1, RXD2, TXD2);
+        Serial2.setTimeout(SERIALPLUGIN_TIMEOUT); // Number of MS to wait to set the timeout for the string.
+        Serial2.setRxBufferSize(SERIALPLUGIN_RX_BUFFER);
+
+        serialPluginRadio = new SerialPluginRadio();
+
+        DEBUG_MSG("Initilizing serial peripheral interface - Done\n");
+
+        firstTime = 0;
+
+    } else {
+        // Interface with the serial peripheral from in here.
+        String serialString;
+
+        while (Serial2.available()) {
+            serialString = Serial2.readString();
+            serialString.toCharArray(serialStringChar, Constants_DATA_PAYLOAD_LEN);
+
+            serialPluginRadio->sendPayload();
+
+            DEBUG_MSG("Received: %s\n", serialStringChar);
+        }
+    }
+
+    return (10);
+#else
+    DEBUG_MSG("Serial Plugin Disabled\n");
+
+    return (INT32_MAX);
+#endif
+}
+
+MeshPacket *SerialPluginRadio::allocReply()
+{
+
+    auto reply = allocDataPacket(); // Allocate a packet for sending
+
+    return reply;
+}
+
+void SerialPluginRadio::sendPayload(NodeNum dest, bool wantReplies)
+{
+    MeshPacket *p = allocReply();
+    p->to = dest;
+    p->decoded.want_response = wantReplies;
+
+    p->decoded.data.payload.size = strlen(serialStringChar); // You must specify how many bytes are in the reply
+    memcpy(p->decoded.data.payload.bytes, serialStringChar, p->decoded.data.payload.size);
+
+    service.sendToMesh(p);
+}
+
+bool SerialPluginRadio::handleReceived(const MeshPacket &mp)
+{
+    auto &p = mp.decoded.data;
+    DEBUG_MSG("* * * * * * * * * * Received text msg self=0x%0x, from=0x%0x, to=0x%0x, id=%d, msg=%.*s\n", nodeDB.getNodeNum(),
+              mp.from, mp.to, mp.id, p.payload.size, p.payload.bytes);
+
+    /*
+     * If SERIALPLUGIN_ECHO is true, then echo the packets that are sent out back to the TX
+     * of the serial interface.
+     */
+    if (mp.from == nodeDB.getNodeNum()) {
+
+        if (SERIALPLUGIN_ECHO) {
+
+            // For some reason, we get the packet back twice when we send out of the radio.
+            //   TODO: need to find out why.
+            if (lastRxID != mp.id) {
+                lastRxID = mp.id;
+                DEBUG_MSG("* * Message came this device\n");
+                Serial2.println("* * Message came this device");
+            }
+        }
+
+    } else {
+        DEBUG_MSG("* * Message came from the mesh\n");
+        Serial2.println("* * Message came from the mesh");
+    }
+
+    // We only store/display messages destined for us.
+    // Keep a copy of the most recent text message.
+    // devicestate.rx_text_message = mp;
+    // devicestate.has_rx_text_message = true;
+
+    // Serial2.print(p.payload.bytes);
+
+    // TODO: If packet came from this device, don't echo locally.
+
+    return true; // Let others look at this message also if they want
+}

src/plugins/SerialPlugin.h

@@ -0,0 +1,54 @@
+#pragma once
+
+#include "SinglePortPlugin.h"
+#include "concurrency/OSThread.h"
+#include "configuration.h"
+#include <Arduino.h>
+#include <functional>
+
+class SerialPlugin : private concurrency::OSThread
+{
+    bool firstTime = 1;
+
+  public:
+    SerialPlugin();
+
+  protected:
+    virtual int32_t runOnce();
+};
+
+extern SerialPlugin *serialPlugin;
+
+/*
+ * Radio interface for SerialPlugin
+ *
+ */
+class SerialPluginRadio : public SinglePortPlugin
+{
+    uint32_t lastRxID;
+
+  public:
+    /*
+        TODO: Switch this to PortNum_SERIAL_APP once the change is able to be merged back here
+              from the main code.
+    */
+
+    SerialPluginRadio() : SinglePortPlugin("SerialPluginRadio", PortNum_TEXT_MESSAGE_APP) {}
+    // SerialPluginRadio() : SinglePortPlugin("SerialPluginRadio", PortNum_PRIVATE_APP) {}
+
+    /**
+     * Send our payload into the mesh
+     */
+    void sendPayload(NodeNum dest = NODENUM_BROADCAST, bool wantReplies = false);
+
+  protected:
+    virtual MeshPacket *allocReply();
+
+    /** Called to handle a particular incoming message
+
+    @return true if you've guaranteed you've handled this message and no other handlers should be considered for it
+    */
+    virtual bool handleReceived(const MeshPacket &mp);
+};
+
+extern SerialPluginRadio *serialPluginRadio;