mirror of
https://github.com/joncampbell123/dosbox-x.git
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105 lines
2.5 KiB
C++
105 lines
2.5 KiB
C++
/*
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* Copyright (C) 2002-2019 The DOSBox Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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
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* GNU 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; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA.
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*/
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#ifndef DOSBOX_PARPORT_H
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#define DOSBOX_PARPORT_H
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// set to 1 for debug messages and debugging log:
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#define PARALLEL_DEBUG 0
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#ifndef DOSBOX_DOSBOX_H
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#include "dosbox.h"
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#endif
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#ifndef DOSBOX_INOUT_H
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#include "inout.h"
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#endif
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#include "control.h"
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#include "dos_inc.h"
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class device_LPT : public DOS_Device {
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public:
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// Creates a LPT device that communicates with the num-th parallel port, i.e. is LPTnum
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device_LPT(Bit8u num, class CParallel* pp);
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virtual ~device_LPT();
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bool Read(Bit8u * data,Bit16u * size);
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bool Write(const Bit8u * data,Bit16u * size);
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bool Seek(Bit32u * pos,Bit32u type);
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bool Close();
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Bit16u GetInformation(void);
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private:
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CParallel* pportclass;
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Bit8u num; // This device is LPTnum
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};
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class CParallel {
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public:
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#if PARALLEL_DEBUG
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FILE * debugfp;
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bool dbg_data;
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bool dbg_putchar;
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bool dbg_cregs;
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bool dbg_plainputchar;
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bool dbg_plaindr;
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void log_par(bool active, char const* format,...);
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#endif
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// Constructor
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CParallel(CommandLine* cmd, Bitu portnr, Bit8u initirq);
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virtual ~CParallel();
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IO_ReadHandleObject ReadHandler[3];
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IO_WriteHandleObject WriteHandler[3];
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void setEvent(Bit16u type, float duration);
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void removeEvent(Bit16u type);
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void handleEvent(Bit16u type);
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virtual void handleUpperEvent(Bit16u type)=0;
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void registerDOSDevice();
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void unregisterDOSDevice();
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Bitu port_nr;
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Bitu base;
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Bitu irq;
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// read data line register
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virtual Bitu Read_PR()=0;
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virtual Bitu Read_COM()=0;
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virtual Bitu Read_SR()=0;
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virtual void Write_PR(Bitu)=0;
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virtual void Write_CON(Bitu)=0;
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virtual void Write_IOSEL(Bitu)=0;
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virtual bool Putchar(Bit8u)=0;
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Bit8u getPrinterStatus();
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void initialize();
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DOS_Device* mydosdevice;
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};
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extern CParallel* parallelPortObjects[];
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const Bit16u parallel_baseaddr[3] = {0x378,0x278,0x3bc};
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#endif
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