Merge remote-tracking branch 'origin/master' into staging
[qemu/wangdongxu.git] / ioport.h
blob23441cba088d3e865e7d49889100df1714cc5565
1 /*
2 * defines ioport related functions
4 * Copyright (c) 2003 Fabrice Bellard
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.
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.
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/>.
20 /**************************************************************************
21 * IO ports API
24 #ifndef IOPORT_H
25 #define IOPORT_H
27 #include "qemu-common.h"
28 #include "iorange.h"
30 typedef uint32_t pio_addr_t;
31 #define FMT_pioaddr PRIx32
33 #define MAX_IOPORTS (64 * 1024)
34 #define IOPORTS_MASK (MAX_IOPORTS - 1)
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 typedef void (IOPortDestructor)(void *opaque);
41 void ioport_register(IORange *iorange);
42 int register_ioport_read(pio_addr_t start, int length, int size,
43 IOPortReadFunc *func, void *opaque);
44 int register_ioport_write(pio_addr_t start, int length, int size,
45 IOPortWriteFunc *func, void *opaque);
46 void isa_unassign_ioport(pio_addr_t start, int length);
47 bool isa_is_ioport_assigned(pio_addr_t start);
49 void cpu_outb(pio_addr_t addr, uint8_t val);
50 void cpu_outw(pio_addr_t addr, uint16_t val);
51 void cpu_outl(pio_addr_t addr, uint32_t val);
52 uint8_t cpu_inb(pio_addr_t addr);
53 uint16_t cpu_inw(pio_addr_t addr);
54 uint32_t cpu_inl(pio_addr_t addr);
56 struct MemoryRegion;
57 struct MemoryRegionPortio;
59 typedef 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;
69 void portio_list_init(PortioList *piolist,
70 const struct MemoryRegionPortio *callbacks,
71 void *opaque, const char *name);
72 void portio_list_destroy(PortioList *piolist);
73 void portio_list_add(PortioList *piolist,
74 struct MemoryRegion *address_space,
75 uint32_t addr);
76 void portio_list_del(PortioList *piolist);
78 #endif /* IOPORT_H */