iodev/parallel.h

   1 /////////////////////////////////////////////////////////////////////////
   2 // $Id: parallel.h,v 1.16 2007/09/28 19:52:03 sshwarts Exp $
   3 /////////////////////////////////////////////////////////////////////////
   4 //
   5 //  Copyright (C) 2001  MandrakeSoft S.A.
   6 //
   7 //    MandrakeSoft S.A.
   8 //    43, rue d'Aboukir
   9 //    75002 Paris - France
  10 //    http://www.linux-mandrake.com/
  11 //    http://www.mandrakesoft.com/
  12 //
  13 //  This library is free software; you can redistribute it and/or
  14 //  modify it under the terms of the GNU Lesser General Public
  15 //  License as published by the Free Software Foundation; either
  16 //  version 2 of the License, or (at your option) any later version.
  17 //
  18 //  This library is distributed in the hope that it will be useful,
  19 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  21 //  Lesser General Public License for more details.
  22 //
  23 //  You should have received a copy of the GNU Lesser General Public
  24 //  License along with this library; if not, write to the Free Software
  25 //  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  26
  27 #ifndef BX_IODEV_PARPORT_H
  28 #define BX_IODEV_PARPORT_H
  29
  30 #if BX_USE_PAR_SMF
  31 #  define BX_PAR_SMF  static
  32 #  define BX_PAR_THIS theParallelDevice->
  33 #else
  34 #  define BX_PAR_SMF
  35 #  define BX_PAR_THIS this->
  36 #endif
  37
  38 #define BX_PARPORT_MAXDEV   2
  39
  40 #define BX_PAR_DATA  0
  41 #define BX_PAR_STAT  1
  42 #define BX_PAR_CTRL  2
  43
  44 typedef struct {
  45   Bit8u data;
  46   struct {
  47     bx_bool error;
  48     bx_bool slct;
  49     bx_bool pe;
  50     bx_bool ack;
  51     bx_bool busy;
  52   } STATUS;
  53   struct {
  54     bx_bool strobe;
  55     bx_bool autofeed;
  56     bx_bool init;
  57     bx_bool slct_in;
  58     bx_bool irq;
  59     bx_bool input;
  60   } CONTROL;
  61   Bit8u IRQ;
  62   FILE *output;
  63   bx_bool initmode;
  64 } bx_par_t;
  65
  66 class bx_parallel_c : public bx_devmodel_c {
  67 public:
  68   bx_parallel_c();
  69   virtual ~bx_parallel_c();
  70   virtual void init(void);
  71   virtual void reset(unsigned type);
  72   virtual void register_state(void);
  73
  74 private:
  75   bx_par_t s[BX_PARPORT_MAXDEV];
  76
  77   static void   virtual_printer(Bit8u port);
  78
  79   static Bit32u read_handler(void *this_ptr, Bit32u address, unsigned io_len);
  80   static void   write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len);
  81 #if !BX_USE_PAR_SMF
  82   Bit32u read(Bit32u address, unsigned io_len);
  83   void   write(Bit32u address, Bit32u value, unsigned io_len);
  84 #endif
  85 };
  86
  87 #endif