Diff: DigitalInOut2.h

Revision:

0:1d15d1ea182e

Child:

1:f3a86fb2a054

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DigitalInOut2.h	Sun Oct 12 23:47:17 2014 +0000
@@ -0,0 +1,87 @@
+#ifndef MBED_DIGITALINOUT_H
+#define MBED_DIGITALINOUT_H
+ 
+#include "platform.h"
+ 
+#include "gpio_api.h"
+ 
+namespace mbed {
+ 
+/** A digital input/output, used for setting or reading a bi-directional pin
+ */
+class DigitalInOut2 {
+ 
+public:
+    /** Create a DigitalInOut connected to the specified pin
+     *
+     *  @param pin DigitalInOut pin to connect to
+     */
+    DigitalInOut(PinName pin) {
+        gpio_init(&gpio, pin, PIN_INPUT);
+    }
+    
+    /** Set the output, specified as 0 or 1 (int)
+     *
+     *  @param value An integer specifying the pin output value, 
+     *      0 for logical 0, 1 (or any other non-zero value) for logical 1 
+     */
+    void write(int value) {
+        gpio_write(&gpio, value);
+    }
+    
+    /** Return the output setting, represented as 0 or 1 (int)
+     *
+     *  @returns
+     *    an integer representing the output setting of the pin if it is an output, 
+     *    or read the input if set as an input
+     */
+    int read() {
+        return gpio_read(&gpio);
+    }
+    
+    /** Set as an output
+     */
+    void output() {
+        gpio_dir(&gpio, PIN_OUTPUT);
+    }
+    
+    /** Set as an input
+     */
+    void input() {
+        gpio_dir(&gpio, PIN_INPUT);
+    }
+    
+    /** Set the input pin mode
+     *
+     *  @param mode PullUp, PullDown, PullNone, OpenDrain
+     */
+    void mode(PinMode pull) {
+        gpio_mode(&gpio, pull);
+    }
+    
+#ifdef MBED_OPERATORS
+    /** A shorthand for write()
+     */
+    DigitalInOut& operator= (int value) {
+        write(value);
+        return *this;
+    }
+    
+    DigitalInOut& operator= (DigitalInOut& rhs) {
+        write(rhs.read());
+        return *this;
+    }
+    
+    /** A shorthand for read()
+     */
+    operator int() {
+        return read();
+    }
+#endif
+
+    gpio_t gpio;
+};
+ 
+} // namespace mbed
+ 
+#endif
\ No newline at end of file