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 31 typedef 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 37 typedef 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 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 typedef struct PortioList { 56 const struct MemoryRegionPortio *ports; 57 Object *owner; 58 struct MemoryRegion *address_space; 59 unsigned nr; 60 struct MemoryRegion **regions; 61 void *opaque; 62 const char *name; 63 } PortioList; 64 65 void portio_list_init(PortioList *piolist, Object *owner, 66 const struct MemoryRegionPortio *callbacks, 67 void *opaque, const char *name); 68 void portio_list_destroy(PortioList *piolist); 69 void portio_list_add(PortioList *piolist, 70 struct MemoryRegion *address_space, 71 uint32_t addr); 72 void portio_list_del(PortioList *piolist); 73 74 #endif /* IOPORT_H */ 75