Diff: DebouncedEdgeIn.h

Revision:

0:471239ea932b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DebouncedEdgeIn.h	Sat Feb 22 23:55:10 2014 +0000
@@ -0,0 +1,70 @@
+#ifndef DEBAUNCED_EDGE_IN_H
+#define DEBAUNCED_EDGE_IN_H
+
+#include "mbed.h"
+#include "FunctionPointer.h"
+
+class DebouncedEdgeIn
+{
+public:
+    DebouncedEdgeIn(PinName in);
+    virtual ~DebouncedEdgeIn();
+
+    int read (void);
+    operator int();
+
+    /** Attach a function to call when a rising edge occurs on the input
+     *
+     *  @param fptr A pointer to a void function, or 0 to set as none
+     */
+    void rise(void (*fptr)(void));
+
+    /** Attach a member function to call when a rising edge occurs on the input
+     *
+     *  @param tptr pointer to the object to call the member function on
+     *  @param mptr pointer to the member function to be called
+     */
+    template<typename T>
+    void rise(T* tptr, void (T::*mptr)(void)) {
+        _rise.attach(tptr, mptr);
+    }
+
+    /** Attach a function to call when a falling edge occurs on the input
+     *
+     *  @param fptr A pointer to a void function, or 0 to set as none
+     */
+    void fall(void (*fptr)(void));
+
+    /** Attach a member function to call when a falling edge occurs on the input
+     *
+     *  @param tptr pointer to the object to call the member function on
+     *  @param mptr pointer to the member function to be called
+     */
+    template<typename T>
+    void fall(T* tptr, void (T::*mptr)(void)) {
+        _fall.attach(tptr, mptr);
+    }
+
+    /** Set the input pin mode
+     *
+     *  @param mode PullUp, PullDown, PullNone
+     */
+    void mode(PinMode pull);
+    
+private :
+    // objects
+    DigitalIn _in;
+    Ticker _ticker;
+    FunctionPointer _rise;
+    FunctionPointer _fall;
+
+    // function to take a sample, and update flags
+    void _sample(void);
+
+    // counters and flags
+    int _samples;
+    int _output;
+    int _output_last;
+};
+
+#endif // DEBAUNCED_EDGE_IN_H