mbed library sources change for ST sensors and ST BLE
Fork of mbed-src by
cpp/DigitalInOut.h
- Committer:
- mbed_official
- Date:
- 2012-11-20
- Revision:
- 0:fd0d7bdfcdc2
- Child:
- 2:143cac498751
File content as of revision 0:fd0d7bdfcdc2:
/* mbed Microcontroller Library * Copyright (c) 2006-2012 ARM Limited * * 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 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) { 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 protected: gpio_t gpio; }; } // namespace mbed #endif