Diff: DigitalIn.h

Revision:

0:82220227f4fa

Child:

1:6b7f447ca868

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DigitalIn.h	Tue Apr 08 14:12:21 2008 +0000
@@ -0,0 +1,83 @@
+/* mbed Microcontroller Library - DigitalIn
+ * Copyright (c) 2007-2008, sford
+ */
+ 
+#ifndef MBED_DIGITALIN_H
+#define MBED_DIGITALIN_H
+
+#include "Base.h"
+#include "LPC2300.h"
+
+typedef void (*VoidFunctionPointer)(void);
+
+namespace mbed {
+
+/* Class: DigitalIn
+ *  A digital input, used for reading the state of a pin
+ */
+ 
+class DigitalIn : public Base {
+
+public:
+
+	/* Group: Configuration Methods */
+	
+	/* Constructor: DigitalIn
+	 *  Create a DigitalIn connected to the specified pin
+	 *
+	 * Variables:
+	 *  pin - DigitalIn pin to connect to (5-30)
+	 */
+	DigitalIn(int pin);
+
+	/* Function: rise
+	 *  Attach a function to call when a rising edge occurs on the input
+	 *
+	 * Variables:
+	 *  fptr - A pointer to a void function, or 0 to set as none
+	 */
+	void rise(void (*fptr)(void));
+
+	/* Function: fall
+	 *  Attach a function to call when a falling edge occurs on the input
+	 *
+	 * Variables:
+	 *  fptr - A pointer to a void function, or 0 to set as none
+	 */
+	void fall(void (*fptr)(void));
+		
+   	/* Group: Access Methods */ 
+
+	/* Function: read
+	 *  Read the input, represented as 0 or 1 (int)
+	 *
+	 * Variables:
+	 *  returns - An integer representing the state of the input pin, 
+	 *      0 for logical 0 (0v) and 1 for logical 1 (3.3v)
+	 */	
+    int read();
+    
+
+	/* Group: Access Method Shorthand */
+
+    /* Function: operator int()
+     *  A shorthand for <read>
+     */
+	operator int();
+ 	
+ 	static void _irq(); // Called on a GPIO interrupt
+ 	
+protected:
+
+	LPC2300::GPIORF* _rf;
+	unsigned int _mask;
+	int _id;
+
+	static VoidFunctionPointer _rising[48];
+	static VoidFunctionPointer _falling[48];
+
+};
+
+}
+
+#endif
\ No newline at end of file