mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-23 19:49:43 +00:00
c5b703ac20
Previously all callers had a containing object with a destructor that could be used to trigger cleanup of the IORange objects (typically just freeing the containing object), but a forthcoming memory API change doesn't fit this pattern. Rather than setting up a new global table, extend the ioport system to support destructors. Signed-off-by: Avi Kivity <avi@redhat.com>
79 lines
2.6 KiB
C
79 lines
2.6 KiB
C
/*
|
|
* 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
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* 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 <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/**************************************************************************
|
|
* IO ports API
|
|
*/
|
|
|
|
#ifndef IOPORT_H
|
|
#define IOPORT_H
|
|
|
|
#include "qemu-common.h"
|
|
#include "iorange.h"
|
|
|
|
typedef uint32_t pio_addr_t;
|
|
#define FMT_pioaddr PRIx32
|
|
|
|
#define MAX_IOPORTS (64 * 1024)
|
|
#define IOPORTS_MASK (MAX_IOPORTS - 1)
|
|
|
|
/* 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);
|
|
typedef void (IOPortDestructor)(void *opaque);
|
|
|
|
void ioport_register(IORange *iorange);
|
|
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);
|
|
bool isa_is_ioport_assigned(pio_addr_t start);
|
|
|
|
void cpu_outb(pio_addr_t addr, uint8_t val);
|
|
void cpu_outw(pio_addr_t addr, uint16_t val);
|
|
void cpu_outl(pio_addr_t addr, uint32_t val);
|
|
uint8_t cpu_inb(pio_addr_t addr);
|
|
uint16_t cpu_inw(pio_addr_t addr);
|
|
uint32_t cpu_inl(pio_addr_t addr);
|
|
|
|
struct MemoryRegion;
|
|
struct MemoryRegionPortio;
|
|
|
|
typedef struct PortioList {
|
|
const struct MemoryRegionPortio *ports;
|
|
struct MemoryRegion *address_space;
|
|
unsigned nr;
|
|
struct MemoryRegion **regions;
|
|
struct MemoryRegion **aliases;
|
|
void *opaque;
|
|
const char *name;
|
|
} PortioList;
|
|
|
|
void portio_list_init(PortioList *piolist,
|
|
const struct MemoryRegionPortio *callbacks,
|
|
void *opaque, const char *name);
|
|
void portio_list_destroy(PortioList *piolist);
|
|
void portio_list_add(PortioList *piolist,
|
|
struct MemoryRegion *address_space,
|
|
uint32_t addr);
|
|
void portio_list_del(PortioList *piolist);
|
|
|
|
#endif /* IOPORT_H */
|