Add a version to the settings struct

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>

src/Kaleidoscope/EEPROM-Settings.cpp

@@ -54,9 +54,26 @@ namespace KaleidoscopePlugins {
     return _isValid;
   }
 
+  void
+  EEPROMSettings::invalidate (void) {
+    _isValid = false;
+  }
+
   void
   EEPROMSettings::update (void) {
     EEPROM.put (0, settings);
+    _isValid = true;
+  }
+
+  uint8_t
+  EEPROMSettings::version (void) {
+    return settings.version;
+  }
+
+  void
+  EEPROMSettings::version (uint8_t ver) {
+    settings.version = ver;
+    update ();
   }
 };
 

src/Kaleidoscope/EEPROM-Settings.h

@@ -35,11 +35,15 @@ namespace KaleidoscopePlugins {
     static uint16_t endOfSettings (void);
     static void update (void);
     static bool isValid (void);
+    static void invalidate (void);
+    static uint8_t version (void);
+    static void version (uint8_t ver);
 
   private:
     static bool _isValid;
     static struct settings {
       char magic[2];
+      uint8_t version;
       uint16_t endOfSettings;
     } settings;
   };