89 lines
2.4 KiB
C++
89 lines
2.4 KiB
C++
/////////////////////////////////////////////////////////////////////////
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// $Id$
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2001-2021 The Bochs Project
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library 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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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#ifndef BX_IODEV_PARPORT_H
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#define BX_IODEV_PARPORT_H
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#if BX_USE_PAR_SMF
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# define BX_PAR_SMF static
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# define BX_PAR_THIS theParallelDevice->
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#else
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# define BX_PAR_SMF
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# define BX_PAR_THIS this->
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#endif
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#define BX_PARPORT_MAXDEV 2
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enum {
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BX_PAR_DATA = 0,
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BX_PAR_STAT = 1,
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BX_PAR_CTRL = 2
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};
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typedef struct {
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Bit8u data;
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struct {
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bool error;
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bool slct;
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bool pe;
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bool ack;
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bool busy;
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} STATUS;
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struct {
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bool strobe;
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bool autofeed;
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bool init;
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bool slct_in;
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bool irq;
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bool input;
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} CONTROL;
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Bit8u IRQ;
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bx_param_string_c *file;
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FILE *output;
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bool file_changed;
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bool initmode;
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} bx_par_t;
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class bx_parallel_c : public bx_devmodel_c {
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public:
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bx_parallel_c();
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virtual ~bx_parallel_c();
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virtual void init(void);
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virtual void reset(unsigned type);
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virtual void register_state(void);
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private:
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bx_par_t s[BX_PARPORT_MAXDEV];
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static void virtual_printer(Bit8u port);
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static Bit32u read_handler(void *this_ptr, Bit32u address, unsigned io_len);
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static void write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len);
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#if !BX_USE_PAR_SMF
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Bit32u read(Bit32u address, unsigned io_len);
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void write(Bit32u address, Bit32u value, unsigned io_len);
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#endif
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static const char* parport_file_param_handler(bx_param_string_c *param, bool set,
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const char *oldval, const char *val,
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int maxlen);
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};
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#endif
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