File:  [Qemu by Fabrice Bellard] / qemu / ioport.h
Revision 1.1.1.5 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 19:16:37 2018 UTC (3 years, 1 month ago) by root
Branches: qemu, MAIN
CVS tags: qemu1001, HEAD
qemu 1.0.1

    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 "iorange.h"
   29: 
   30: typedef 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.  */
   37: typedef void (IOPortWriteFunc)(void *opaque, uint32_t address, uint32_t data);
   38: typedef uint32_t (IOPortReadFunc)(void *opaque, uint32_t address);
   39: 
   40: void ioport_register(IORange *iorange);
   41: int register_ioport_read(pio_addr_t start, int length, int size,
   42:                          IOPortReadFunc *func, void *opaque);
   43: int register_ioport_write(pio_addr_t start, int length, int size,
   44:                           IOPortWriteFunc *func, void *opaque);
   45: void isa_unassign_ioport(pio_addr_t start, int length);
   46: bool isa_is_ioport_assigned(pio_addr_t start);
   47: 
   48: void cpu_outb(pio_addr_t addr, uint8_t val);
   49: void cpu_outw(pio_addr_t addr, uint16_t val);
   50: void cpu_outl(pio_addr_t addr, uint32_t val);
   51: uint8_t cpu_inb(pio_addr_t addr);
   52: uint16_t cpu_inw(pio_addr_t addr);
   53: uint32_t cpu_inl(pio_addr_t addr);
   54: 
   55: struct MemoryRegion;
   56: struct MemoryRegionPortio;
   57: 
   58: typedef struct PortioList {
   59:     const struct MemoryRegionPortio *ports;
   60:     struct MemoryRegion *address_space;
   61:     unsigned nr;
   62:     struct MemoryRegion **regions;
   63:     void *opaque;
   64:     const char *name;
   65: } PortioList;
   66: 
   67: void portio_list_init(PortioList *piolist,
   68:                       const struct MemoryRegionPortio *callbacks,
   69:                       void *opaque, const char *name);
   70: void portio_list_destroy(PortioList *piolist);
   71: void portio_list_add(PortioList *piolist,
   72:                      struct MemoryRegion *address_space,
   73:                      uint32_t addr);
   74: void portio_list_del(PortioList *piolist);
   75: 
   76: #endif /* IOPORT_H */

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