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//=========================================================================//
// //
// PonyProg - Serial Device Programmer //
// //
// Copyright (C) 1997-2019 Claudio Lanconelli //
// //
// http://ponyprog.sourceforge.net //
// //
//-------------------------------------------------------------------------//
// //
// This program is free software; you can redistribute it and/or //
// modify it under the terms of the GNU General Public License //
// as published by the Free Software Foundation; either version2 of //
// the License, or (at your option) any later version. //
// //
// 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 (see LICENSE); if not, write to the //
// Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. //
// //
//=========================================================================//
#ifndef _I2CINTERFACE_H
#define _I2CINTERFACE_H
#include "types.h"
#include "errcode.h"
#include <QDebug>
class BusInterface
{
public: //------------------------------- public
BusInterface()
{
cmd2cmd_delay = 0;
installed = -1;
old_portno = -1;
}
// virtual ~BusInterface();
virtual int Open(int port) = 0;
virtual void Close() = 0;
virtual int TestOpen(int port)
{
qDebug() << "BusInterface::TestOpen(" << port << ") IN";
int ret_val = TestSave(port);
TestRestore();
qDebug() << "BusInterface::TestOpen() = " << ret_val << " OUT";
return ret_val;
}
virtual int TestPort(int port)
{
qDebug() << "BusInterface::TestPort(" << port << ") IN";
return TestOpen(port);
}
virtual int TestSave(int port)
{
int ret_val;
qDebug() << "BusInterface::TestSave(" << port << ") IN";
old_portno = installed;
Close();
if ((ret_val = Open(port)) == OK)
{
}
qDebug() << "BusInterface::TestSave() = " << ret_val << " OUT";
return ret_val;
}
virtual void TestRestore()
{
qDebug() << "BusInterface::TestRestore() IN *** Inst=" << installed;
if (IsInstalled())
{
Close();
}
if (old_portno >= 0)
{
Open(old_portno);
old_portno = -1;
}
qDebug() << "BusInterface::TestRestore() OUT";
}
virtual int SetPower(bool onoff)
{
return OK;
}
virtual void SetControlLine(int res = 1)
{
}
virtual void SetDataOut(int sda = 1) = 0;
virtual void SetInvDataOut(int sda = 1)
{
SetDataOut(!sda);
}
virtual void SetClock(int scl = 1) = 0;
virtual int GetDataIn() = 0;
virtual int GetClock() = 0;
virtual void SetClockData() = 0;
virtual void ClearClockData()
{ }
virtual int IsClockDataUP() = 0;
virtual int IsClockDataDOWN() = 0;
int GetCmd2CmdDelay() const
{
return cmd2cmd_delay;
}
void SetCmd2CmdDelay(int delay)
{
if (delay >= 0)
{
cmd2cmd_delay = delay;
}
}
bool IsInstalled() const
{
return (installed >= 0) ? true : false;
}
protected: //------------------------------- protected
void Install(int val)
{
installed = val;
}
void DeInstall()
{
installed = -1;
}
int GetInstalled() const
{
return installed;
}
int old_portno; // TestSave() save the status here
private: //------------------------------- private
int installed; // -1 --> not installed, >= 0 number if the installed port
int cmd2cmd_delay; // <> 0 if a delay between commands is needed
};
#endif
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