Codebase list ponyprog / f8e260b2-4bf8-4001-824d-3b9d66db6d19/main SrcPony / spi-bus.h
f8e260b2-4bf8-4001-824d-3b9d66db6d19/main

Tree @f8e260b2-4bf8-4001-824d-3b9d66db6d19/main (Download .tar.gz)

spi-bus.h @f8e260b2-4bf8-4001-824d-3b9d66db6d19/main — raw · history · blame 

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
//=========================================================================//
//                                                                         //
//  PonyProg - Serial Device Programmer                                    //
//                                                                         //
//  Copyright (C) 1997-2020   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 _SPIBUS_H
#define _SPIBUS_H

#include "busio.h"
#include "pgminter.h"

class SPIBus : public BusIO
{
  public:
	SPIBus(BusInterface *ptr = 0, bool cpha = false, bool cpol = false);
	virtual ~SPIBus();

	virtual int Reset();

	void SetDelay();

	void SetFallingPhase(bool cpha)
	{
		m_cpha = cpha;
	}
	bool GetFallingPhase()
	{
		return m_cpha;
	}
	void SetClockPolarity(bool cpol)
	{
		m_cpol = cpol;
	}
	bool GetClockPolarity()
	{
		return m_cpol;
	}

	void SetMode(int mode)
	{
		m_cpol = ((mode & SPIMODE_CPOL) != 0);
		m_cpha = ((mode & SPIMODE_CPHA) != 0);
	}
	void SetMode(bool cpha, bool cpol)
	{
		m_cpol = cpol;
		m_cpha = cpha;
	}
	int GetMode()
	{
		int mode = 0;
		if (m_cpol)
		{
			mode |= SPIMODE_CPOL;
		}
		if (m_cpha)
		{
			mode |= SPIMODE_CPHA;
		}

		return mode;
	}

  protected:

	int SendDataByte(int by);
	int RecDataByte();

	void SetReset()
	{
		busI->SetControlLine(1);
	}
	void ClearReset()
	{
		busI->SetControlLine(0);
	}

	void setSCK()
	{
		busI->SetClock(1);
	}

	void clearSCK()
	{
		busI->SetClock(0);
	}

	int SendDataBit(int b);
	int RecDataBit();

  private:

	void bitMOSI(int b)
	{
		busI->SetDataOut(b);
	}

	void setMOSI()
	{
		busI->SetDataOut(1);
	}

	void clearMOSI()
	{
		busI->SetDataOut(0);
	}

	int getMISO() const
	{
		return busI->GetDataIn();
	}

	bool m_cpol;	//clock polarity
	bool m_cpha;	//rising edge vs fall edge sample
};

#endif