more on wk emulation

src/winkeyer.h

@@ -8,4 +8,20 @@ class WinKeyer final
     void run(queue_t &queue);
 
   private:
+    enum class CommandState {
+        None,
+        Admin,
+        AdminEchoTest,
+        LoadDefaults,
+        KeyImmediate,
+    };
+    enum class WkMode {
+        WK1,
+        WK2,
+        WK3,
+    };
+
+    CommandState m_commandState {CommandState::None};
+    WkMode m_wkMode {WkMode::WK1};
+    bool m_hostOpen {false};
 };