Diff: keypad.h

Revision:

11:a45e64141ce6

Parent:

10:9a9ec143840b

Child:

13:fb6929fac0db

--- a/keypad.h	Fri Nov 02 22:42:28 2012 +0000
+++ b/keypad.h	Sat Nov 03 23:33:52 2012 +0000
@@ -85,6 +85,14 @@
      */
     void Stop(void);
 
+    /** Scan the keyboard for a debounced pressed key
+     */
+    int DebouncedScan(void);
+
+    /** Scan the keyboard for a pressed key
+     */
+    int Scan(void);
+
     /** User-defined function that to be called when a key is pressed
      *  @param fptr           A function pointer takes a uint32_t and
      *                        returns uint32_t
@@ -92,21 +100,20 @@
     void CallAfterInput(uint32_t (*fptr)(uint32_t));
 
 protected:
+    static const int row_count = 4;
+    static const int col_count = 4;
+
     InterruptIn      _row0;
     InterruptIn      _row1;
     InterruptIn      _row2;
     InterruptIn      _row3;
+    InterruptIn      *_rows[row_count];
     BusInOut         _cols;  // BusOut doesn't support mode() yet; need open drain to prevent short circuits...
     int              _debounce;
     FPointer         _input; // Called after each input
 
-    void _callback(int row, InterruptIn &therow);
-    void _cbRow0Fall(void);
-    void _cbRow1Fall(void);
-    void _cbRow2Fall(void);
-    void _cbRow3Fall(void);
+    void _callback();
     void _setupFallTrigger(void);
-    void _dummy(void) { };
 };
 
 #endif // KEYPAD_H