File:  [Qemu by Fabrice Bellard] / qemu / ioport.h
Revision (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 17:20:18 2018 UTC (2 years, 2 months ago) by root
Branches: qemu, MAIN
CVS tags: qemu0111, qemu0110, HEAD
qemu 0.11.0

 * defines ioport related functions
 *  Copyright (c) 2003 Fabrice Bellard
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * Lesser General Public License for more details.
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, see <>.

 * IO ports API

#ifndef IOPORT_H
#define IOPORT_H

#include "qemu-common.h"

typedef uint32_t pio_addr_t;
#define FMT_pioaddr     PRIx32

#define MAX_IOPORTS     (64 * 1024)

/* These should really be in isa.h, but are here to make pc.h happy.  */
typedef void (IOPortWriteFunc)(void *opaque, uint32_t address, uint32_t data);
typedef uint32_t (IOPortReadFunc)(void *opaque, uint32_t address);

int register_ioport_read(pio_addr_t start, int length, int size,
                         IOPortReadFunc *func, void *opaque);
int register_ioport_write(pio_addr_t start, int length, int size,
                          IOPortWriteFunc *func, void *opaque);
void isa_unassign_ioport(pio_addr_t start, int length);

/* NOTE: as these functions may be even used when there is an isa
   brige on non x86 targets, we always defined them */
#if !defined(NO_CPU_IO_DEFS) && defined(NEED_CPU_H)
void cpu_outb(CPUState *env, pio_addr_t addr, uint8_t val);
void cpu_outw(CPUState *env, pio_addr_t addr, uint16_t val);
void cpu_outl(CPUState *env, pio_addr_t addr, uint32_t val);
uint8_t cpu_inb(CPUState *env, pio_addr_t addr);
uint16_t cpu_inw(CPUState *env, pio_addr_t addr);
uint32_t cpu_inl(CPUState *env, pio_addr_t addr);

#endif /* IOPORT_H */