Rivendellaudio/lib/rdgpio.h
Fred Gleason 698b475933 2016-05-24 Fred Gleason <fredg@paravelsystems.com>
* Removed all CVS tags.
	* Removed 'const char *name' parameter from all QObject contructors.
2016-05-24 13:13:26 -04:00

89 lines
2.2 KiB
C++

// rdgpio.h
//
// A driver for General-Purpose I/O devices.
//
// (C) Copyright 2002-2003,2016 Fred Gleason <fredg@paravelsystems.com>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU Library General Public License
// version 2 as published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public
// License along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
#ifndef RDGPIO_H
#define RDGPIO_H
#include <linux/input.h>
#include <qobject.h>
#include <qtimer.h>
#include <qsignalmapper.h>
#include <gpio.h>
#define GPIO_CLOCK_INTERVAL 100
#define GPIO_MAX_LINES 24
class RDGpio : public QObject
{
Q_OBJECT
public:
enum Mode {Auto=GPIO_MODE_AUTO,Input=GPIO_MODE_INPUT,Output=GPIO_MODE_OUTPUT};
RDGpio(QObject *parent=0);
QString device() const;
void setDevice(QString dev);
QString description() const;
RDGpio::Mode mode();
void setMode(RDGpio::Mode mode);
bool open();
void close();
int inputs() const;
int outputs() const;
unsigned inputMask();
bool inputState(int line);
unsigned outputMask() const;
signals:
void inputChanged(int line,bool state);
void outputChanged(int line,bool state);
public slots:
void gpoSet(int line,unsigned interval=0);
void gpoReset(int line,unsigned interval=0);
private slots:
void inputTimerData();
void revertData(int);
private:
enum Api {ApiGpio=0,ApiInput=1};
void RemapTimers();
void SetReversion(int,unsigned);
void Clear();
void InitGpio();
void InitInput();
Api gpio_api;
int gpio_fd;
QString gpio_device;
bool gpio_open;
struct gpio_info gpio_info;
QTimer *gpio_input_timer;
unsigned gpio_input_mask;
unsigned gpio_output_mask;
QSignalMapper *gpio_revert_mapper;
QTimer *gpio_revert_timer[GPIO_MAX_LINES];
int gpio_key_map[KEY_MAX];
QString gpio_description;
};
#endif // RDGPIO_H