139 lines
3.3 KiB
C++
139 lines
3.3 KiB
C++
//=========================================================================//
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// //
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// PonyProg - Serial Device Programmer //
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// //
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// Copyright (C) 1997-2020 Claudio Lanconelli //
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// //
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// http://ponyprog.sourceforge.net //
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// //
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//-------------------------------------------------------------------------//
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// //
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// This program is free software; you can redistribute it and/or //
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// modify it under the terms of the GNU General Public License //
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// as published by the Free Software Foundation; either version2 of //
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// the License, or (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU //
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// General Public License for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program (see LICENSE); if not, write to the //
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// Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. //
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// //
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//=========================================================================//
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#ifndef _SPIBUS_H
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#define _SPIBUS_H
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#include "busio.h"
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#include "pgminter.h"
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class SPIBus : public BusIO
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{
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public:
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SPIBus(BusInterface *ptr = 0, bool cpha = false, bool cpol = false);
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virtual ~SPIBus();
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virtual int Reset();
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void SetDelay();
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void SetFallingPhase(bool cpha)
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{
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m_cpha = cpha;
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}
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bool GetFallingPhase()
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{
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return m_cpha;
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}
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void SetClockPolarity(bool cpol)
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{
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m_cpol = cpol;
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}
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bool GetClockPolarity()
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{
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return m_cpol;
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}
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void SetMode(int mode)
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{
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m_cpol = ((mode & SPIMODE_CPOL) != 0);
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m_cpha = ((mode & SPIMODE_CPHA) != 0);
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}
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void SetMode(bool cpha, bool cpol)
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{
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m_cpol = cpol;
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m_cpha = cpha;
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}
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int GetMode()
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{
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int mode = 0;
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if (m_cpol)
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{
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mode |= SPIMODE_CPOL;
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}
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if (m_cpha)
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{
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mode |= SPIMODE_CPHA;
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}
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return mode;
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}
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protected:
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int SendDataByte(int by);
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int RecDataByte();
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void SetReset()
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{
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busI->SetControlLine(1);
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}
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void ClearReset()
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{
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busI->SetControlLine(0);
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}
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void setSCK()
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{
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busI->SetClock(1);
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}
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void clearSCK()
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{
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busI->SetClock(0);
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}
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int SendDataBit(int b);
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int RecDataBit();
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private:
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void bitMOSI(int b)
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{
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busI->SetDataOut(b);
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}
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void setMOSI()
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{
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busI->SetDataOut(1);
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}
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void clearMOSI()
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{
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busI->SetDataOut(0);
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}
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int getMISO() const
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{
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return busI->GetDataIn();
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}
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bool m_cpol; //clock polarity
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bool m_cpha; //rising edge vs fall edge sample
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};
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#endif
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