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 "qom/object.h"
  29#include "exec/memory.h"
  30
  31typedef uint32_t pio_addr_t;
  32#define FMT_pioaddr     PRIx32
  33
  34#define MAX_IOPORTS     (64 * 1024)
  35#define IOPORTS_MASK    (MAX_IOPORTS - 1)
  36
  37typedef struct MemoryRegionPortio {
  38    uint32_t offset;
  39    uint32_t len;
  40    unsigned size;
  41    uint32_t (*read)(void *opaque, uint32_t address);
  42    void (*write)(void *opaque, uint32_t address, uint32_t data);
  43    uint32_t base; /* private field */
  44} MemoryRegionPortio;
  45
  46#define PORTIO_END_OF_LIST() { }
  47
  48#ifndef CONFIG_USER_ONLY
  49extern const MemoryRegionOps unassigned_io_ops;
  50#endif
  51
  52void cpu_outb(pio_addr_t addr, uint8_t val);
  53void cpu_outw(pio_addr_t addr, uint16_t val);
  54void cpu_outl(pio_addr_t addr, uint32_t val);
  55uint8_t cpu_inb(pio_addr_t addr);
  56uint16_t cpu_inw(pio_addr_t addr);
  57uint32_t cpu_inl(pio_addr_t addr);
  58
  59typedef struct PortioList {
  60    const struct MemoryRegionPortio *ports;
  61    Object *owner;
  62    struct MemoryRegion *address_space;
  63    unsigned nr;
  64    struct MemoryRegion **regions;
  65    void *opaque;
  66    const char *name;
  67    bool flush_coalesced_mmio;
  68} PortioList;
  69
  70void portio_list_init(PortioList *piolist, Object *owner,
  71                      const struct MemoryRegionPortio *callbacks,
  72                      void *opaque, const char *name);
  73void portio_list_set_flush_coalesced(PortioList *piolist);
  74void portio_list_destroy(PortioList *piolist);
  75void portio_list_add(PortioList *piolist,
  76                     struct MemoryRegion *address_space,
  77                     uint32_t addr);
  78void portio_list_del(PortioList *piolist);
  79
  80#endif /* IOPORT_H */
  81