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//=========================================================================//
// //
// PonyProg - Serial Device Programmer //
// //
// Copyright (C) 1997-2021 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 _I2CBUS_H
#define _I2CBUS_H
#include "busio.h"
class I2CBus : public BusIO
{
public:
I2CBus(BusInterface *ptr = 0);
virtual ~I2CBus();
long Read(int slave, uint8_t *data, long length, int page_size = 0);
long Write(int slave, uint8_t const *data, long length, int page_size = 0);
int Start(uint8_t slave);
int ReadByte(int ack, bool lsb = false);
int WriteByte(int by, bool lsb = false);
long StartRead(uint8_t slave, uint8_t *data, long length);
long StartWrite(uint8_t slave, uint8_t const *data, long length);
int Stop();
int Reset();
virtual int Open(int port)
{
Q_CHECK_PTR(busI);
busI->SetI2CMode(true);
return BusIO::Open(port);
}
void Close();
int TestPort(int port);
//int Calibration(int slave = 0xA0);
void SetDelay();
protected:
void RecoverSlave();
int CheckBusy();
int SendStart();
int SendStop();
int SendBitMast(int b);
int RecBitMast();
private:
void setSCLSDA()
{
busI->SetClockData();
}
int isSCLSDAuno() const
{
return busI->IsClockDataUP();
}
void setSDA()
{
busI->SetDataOut(1);
}
void clearSDA()
{
busI->SetDataOut(0);
}
void setSCL()
{
busI->SetClock(1);
}
void clearSCL()
{
busI->SetClock(0);
}
int getSCL() const
{
return busI->GetClock();
}
int getSDA() const
{
return busI->GetDataIn();
}
void bitSDA(int b)
{
busI->SetDataOut(b);
}
};
#endif
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