mirror of
https://github.com/joncampbell123/dosbox-x.git
synced 2025-10-14 19:08:32 +08:00
82c276f345
emulation in the DOS environment. we broke it during BIOS startup reorganization, now let's fix it to work again by registering the devices when the DOS kernel starts up.
109 lines
2.6 KiB
C++
109 lines
2.6 KiB
C++
/*
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* Copyright (C) 2002-2013 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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(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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void Write_reserved(Bit8u data, Bit8u address);
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virtual bool Putchar(Bit8u)=0;
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bool Putchar_default(Bit8u);
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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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void PARALLEL_Init (Section * sec);
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const Bit16u parallel_baseaddr[3] = {0x378,0x278,0x3bc};
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#endif
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