prototype WifiRev2 interface

DCCEX.h

@@ -9,7 +9,11 @@
 #include "DIAG.h"
 #include "DCCEXParser.h"
 #include "version.h"
+#ifdef ARDUINO_AVR_UNO_WIFI_REV2
+  #include "WifiInterfaceRev2.h"
+#else   
   #include "WifiInterface.h"
+#endif  
 #if ETHERNET_ON == true
 #include "EthernetInterface.h"
 #endif

WifiInterfaceRev2.cpp

@@ -0,0 +1,103 @@
+/*
+ *  © 2021, Chris Harlow. All rights reserved.
+ *  
+ *  This file is part of DCC-EX/CommandStation-EX
+ *
+ *  This is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  It is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with CommandStation.  If not, see <https://www.gnu.org/licenses/>.
+ * 
+ */
+#ifdef ARDUINO_AVR_UNO_WIFI_REV2
+// This code is ONLY compiled on a unoWifiRev2 processor which uses a different architecture 
+
+#include "WifiInterfaceRev2.h"
+#include "DIAG.h"
+#include "CommandDistributor.h"
+#include <SPI.h>
+#include <WiFiNINA.h>
+
+
+WiFiServer WifiInterface::server(2560);
+bool WifiInterface::connected=false;
+/**
+ * @brief Setup Wifi Connection
+ * 
+ */
+ 
+ bool WifiInterface::setup(long serial_link_speed, 
+                          const FSH *wifiESSID,
+                          const FSH *wifiPassword,
+                          const FSH *hostname,
+                          const int port) {
+  (void)serial_link_speed;                    
+  (void)port;  // obsolete  
+  (void)hostname;  // To be implemented  
+  
+  if (WiFi.status() == WL_NO_MODULE) {
+     DIAG(F("Wifi- hardware failed\n"));
+     return false; 
+  }
+  DIAG(F("Wifi Firmware=%s  expected=%S"),WiFi.firmwareVersion(),F(WIFI_FIRMWARE_LATEST_VERSION));
+
+
+  int status = WL_IDLE_STATUS;
+  int attempts = 4;
+  while (status != WL_CONNECTED) {
+    if (attempts-- <= 0) {
+      DIAG(F("\nFAILED - No Wifi\n"));
+      return false;   
+    }
+    DIAG(F("\nAttempting to connect to %s\n"),wifiESSID);
+    status = WiFi.begin(wifiESSID, wifiPassword);
+    // wait 10 seconds for connection:
+    delay(10000);
+  }
+
+  server.begin();  // start the server on port 2560                 
+
+  IPAddress ip = WiFi.localIP();
+  LCD(4,F("IP: %d.%d.%d.%d"), ip[0], ip[1], ip[2], ip[3]);
+  LCD(5,F("Port:2560"));
+  outboundRing=new RingStream(OUTBOUND_RING_SIZE);     
+}
+
+/**
+ * @brief Main loop for the WifiInterfaceRev2
+ * 
+ */
+void WifiInterface::loop()
+{
+  WiFiClient client = server.available();   // listen for incoming clients
+  if (client)
+  {  
+     // read bytes from a client
+     byte buffer[MAX_NINA_BUFFER];
+     int count = client.read(buffer, MAX_NINA_BUFFER-1);
+     buffer[count] = '\0'; // terminate the string properly
+     if (Diag::WIFI) DIAG(F("WIFI:%e\n"), buffer);
+     // TEMPORARY - Assume all clients are client 1, this will confuse WiThrottle! 
+     outboundRing->mark(1);
+     // TEMPORARY - Assume all clients are client 1, this will confuse WiThrottle! 
+     CommandDistributor::parse(1,buffer,outboundRing);
+     outboundRing->commit();
+     int socketOut=outboundRing->read();
+     if (socketOut>=0) {
+        int count=outboundRing->count();
+        if (Diag::WIFI) DIAG(F("Wifi Reply count=:%d\n"), count);
+        for(;count>0;count--)  client.write(outboundRing->read());
+        client.flush(); //maybe 
+     }
+  }
+}
+
+#endif

WifiInterfaceRev2.h

@@ -0,0 +1,44 @@
+/*
+ *  © 2021, Chris Harlow. All rights reserved.
+ *  
+ *  This file is part of CommandStation-EX
+ *
+ *  This is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  It is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with CommandStation.  If not, see <https://www.gnu.org/licenses/>.
+ */
+#ifndef WifiInterface_h
+#define WifiInterface_h
+#include <SPI.h>
+#include <WiFiNINA.h>
+#include "FSH.h"
+#include "RingStream.h"
+
+#define MAX_NINA_BUFFER 512
+#define OUTBOUND_RING_SIZE 2048
+
+class WifiInterface
+{
+
+public:
+  static bool setup(long serial_link_speed,  // ignored 
+                          const FSH *wifiESSID,
+                          const FSH *wifiPassword,
+                          const FSH *hostname,
+                          const int port = 2560); // ignored
+  static void loop();
+private:
+   static WiFiServer server;
+   static bool connected;  
+   static RingStream * outboundRing;
+};
+#endif