File content as of revision 8:c14af7958ef5:

/* mbed Microcontroller Library - DigitalInOut
 * Copyright (c) 2006-2011 ARM Limited. All rights reserved.
 */
#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 DigitalInOut {

public:
    /** Create a DigitalInOut connected to the specified pin
     *
     *  @param pin DigitalInOut pin to connect to
     */
    DigitalInOut(PinName pin);
    
    /** 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);
    
    /** 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();
    
    /** Set as an output
     */
    void output();
    
    /** Set as an input
     */
    void input();
    
    /** Set the input pin mode
     *
     *  @param mode PullUp, PullDown, PullNone, OpenDrain
     */
    void mode(PinMode 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

protected:
    gpio_object gpio;
};

} // namespace mbed

#endif