LXR qemu/include/exec/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, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20/**************************************************************************
  21 * IO ports API
  22 */
  23
  24#ifndef IOPORT_H
  25#define IOPORT_H
  26
  27#include "qemu-common.h"
  28#include "exec/iorange.h"
  29
  30typedef uint32_t pio_addr_t;
  31#define FMT_pioaddr     PRIx32
  32
  33#define MAX_IOPORTS     (64 * 1024)
  34#define IOPORTS_MASK    (MAX_IOPORTS - 1)
  35
  36/* These should really be in isa.h, but are here to make pc.h happy.  */
  37typedef void (IOPortWriteFunc)(void *opaque, uint32_t address, uint32_t data);
  38typedef uint32_t (IOPortReadFunc)(void *opaque, uint32_t address);
  39typedef void (IOPortDestructor)(void *opaque);
  40
  41void ioport_register(IORange *iorange);
  42int register_ioport_read(pio_addr_t start, int length, int size,
  43                         IOPortReadFunc *func, void *opaque);
  44int register_ioport_write(pio_addr_t start, int length, int size,
  45                          IOPortWriteFunc *func, void *opaque);
  46void isa_unassign_ioport(pio_addr_t start, int length);
  47bool isa_is_ioport_assigned(pio_addr_t start);
  48
  49void cpu_outb(pio_addr_t addr, uint8_t val);
  50void cpu_outw(pio_addr_t addr, uint16_t val);
  51void cpu_outl(pio_addr_t addr, uint32_t val);
  52uint8_t cpu_inb(pio_addr_t addr);
  53uint16_t cpu_inw(pio_addr_t addr);
  54uint32_t cpu_inl(pio_addr_t addr);
  55
  56struct MemoryRegion;
  57struct MemoryRegionPortio;
  58
  59typedef struct PortioList {
  60    const struct MemoryRegionPortio *ports;
  61    struct MemoryRegion *address_space;
  62    unsigned nr;
  63    struct MemoryRegion **regions;
  64    struct MemoryRegion **aliases;
  65    void *opaque;
  66    const char *name;
  67} PortioList;
  68
  69void portio_list_init(PortioList *piolist,
  70                      const struct MemoryRegionPortio *callbacks,
  71                      void *opaque, const char *name);
  72void portio_list_destroy(PortioList *piolist);
  73void portio_list_add(PortioList *piolist,
  74                     struct MemoryRegion *address_space,
  75                     uint32_t addr);
  76void portio_list_del(PortioList *piolist);
  77
  78#endif /* IOPORT_H */
  79