ioport.h

   1 /*
   2  * defines ioport related functions
   3  *
   4  *  Copyright (c) 2003 Fabrice Bellard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA  02110-1301 USA
  19  */
  20
  21 /**************************************************************************
  22  * IO ports API
  23  */
  24
  25 #ifndef IOPORT_H
  26 #define IOPORT_H
  27
  28 #include "qemu-common.h"
  29
  30 #define MAX_IOPORTS     (64 * 1024)
  31 #define IOPORTS_MASK    (MAX_IOPORTS - 1)
  32
  33 /* These should really be in isa.h, but are here to make pc.h happy.  */
  34 typedef void (IOPortWriteFunc)(void *opaque, uint32_t address, uint32_t data);
  35 typedef uint32_t (IOPortReadFunc)(void *opaque, uint32_t address);
  36
  37 int register_ioport_read(int start, int length, int size,
  38                          IOPortReadFunc *func, void *opaque);
  39 int register_ioport_write(int start, int length, int size,
  40                           IOPortWriteFunc *func, void *opaque);
  41 void isa_unassign_ioport(int start, int length);
  42
  43
  44 /* NOTE: as these functions may be even used when there is an isa
  45    brige on non x86 targets, we always defined them */
  46 #if !defined(NO_CPU_IO_DEFS) && defined(NEED_CPU_H)
  47 void cpu_outb(CPUState *env, int addr, int val);
  48 void cpu_outw(CPUState *env, int addr, int val);
  49 void cpu_outl(CPUState *env, int addr, int val);
  50 int cpu_inb(CPUState *env, int addr);
  51 int cpu_inw(CPUState *env, int addr);
  52 int cpu_inl(CPUState *env, int addr);
  53 #endif
  54
  55 #endif /* IOPORT_H */