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replace navio_gpio with linux_gpio

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Signed-off-by: Nicolae Rosia <nicolae.rosia@gmail.com>
This commit is contained in:
Nicolae Rosia
2017-05-18 23:09:44 +02:00
committed by Lorenz Meier
parent 3d77102653
commit 4af7036a8a
12 changed files with 383 additions and 591 deletions
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src/drivers/linux_gpio/linux_gpio.h
+75
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/****************************************************************************
*
* Copyright (c) 2017 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file linux_gpio.h
*
* Linux sysfs GPIO Interface
*
* This interface allows manipulation of sysfs GPIOs on Linux
*
* @author Nicolae Rosia <nicolae.rosia@gmail.com>
*/
class LinuxGPIO
{
public:
LinuxGPIO(unsigned int pin);
~LinuxGPIO() = default;
enum class Direction {
IN = 0,
OUT = 1,
};
enum class Value {
LOW = 0,
HIGH = 1,
};
int exportPin();
int unexportPin();
int setDirection(LinuxGPIO::Direction dir);
int readValue();
int writeValue(LinuxGPIO::Value value);
private:
static int _exportPin(unsigned int pin);
static int _unexportPin(unsigned int pin);
static int _setDirection(unsigned int pin, int dir);
static int _readValue(int pin);
static int _writeValue(int pin, unsigned int value);
int _pin;
};