Diff: keypad.h

Revision:

10:66b580afa3ea

Parent:

9:e48ba5b4c497

--- a/keypad.h	Tue Jan 31 00:31:58 2012 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,111 +0,0 @@
-/* mbed Keypad library, using user-defined interrupt callback
- * Copyright (c) 2012 Yoong Hor Meng
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE
- */
-
-#ifndef KEYPAD_H
-#define KEYPAD_H
-
-#include "mbed.h"
-#include "FPointer.h"
-
-/**
- * An interrupt-based interface to 4x4 keypad.
- *
- * On each key pressed on a keypad, the index of the key is passed to a
- * user-defined function. User is free to define what to be done with the
- * input.
- *
- * This library makes use of
- * @see http://mbed.org/cookbook/FPointer by Andy Kirkham
- *
- * Example:
- * @code
- * #include "mbed.h"
- * #include "keypad.h"
- * 
- * // Define your own keypad values
- * char Keytable[] = { '1', '2', '3', 'A',
- *                     '4', '5', '6', 'B',
- *                     '7', '8', '9', 'C',
- *                     '*', '0', '#', 'D'
- *                   };
- * 
- * uint32_t cbAfterInput(uint32_t index) {
- *     printf("Index:%d => Key:%c\n", key, Keytable[index]);
- *     return 0;
- * }
- * 
- * int main() {
- *     Keypad keypad(p25, p26, p27, p28, p21, p22, p23, p24);
- *     keypad.CallAfterInput(&cbAfterInput);
- *     keypad.Start();
- * 
- *     while (1) {
- *         wait_ms(100);
- *     }
- * }
- * @endcode
- */
-class Keypad {
-public:
-    /** Create a Keypad interface
-     *
-     *  @param row<3..0>     Row data lines
-     *  @param col<3..0>     Column data lines
-     *  @param debounce_ms   Debounce in ms (Default to 20ms)
-     */
-    Keypad(PinName row3, PinName row2, PinName row1, PinName row0,
-           PinName col3, PinName col2, PinName col1, PinName col0,
-           int debounce_ms = 20);
-
-    /** Start the keypad interrupt routines
-     */
-    void Start(void);
-
-    /** Stop the keypad interrupt routines
-     */
-    void Stop(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
-     */
-    void CallAfterInput(uint32_t (*fptr)(uint32_t));
-
-protected:
-    InterruptIn      _row0;
-    InterruptIn      _row1;
-    InterruptIn      _row2;
-    InterruptIn      _row3;
-    BusOut           _cols;
-    int              _debounce;
-    FPointer         _input; // Called after each input
-
-    void _callback(int row, InterruptIn &therow);
-    void _cbRow0Rise(void);
-    void _cbRow1Rise(void);
-    void _cbRow2Rise(void);
-    void _cbRow3Rise(void);
-    void _setupRiseTrigger(void);
-    void _dummy(void) { };
-};
-
-#endif // KEYPAD_H
\ No newline at end of file