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 2.1 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 SYSTEM_IOPORT_H 25 #define SYSTEM_IOPORT_H 26 27 #include "system/memory.h" 28 29 #define MAX_IOPORTS (64 * 1024) 30 #define IOPORTS_MASK (MAX_IOPORTS - 1) 31 32 typedef struct MemoryRegionPortio { 33 uint32_t offset; 34 uint32_t len; 35 unsigned size; 36 uint32_t (*read)(void *opaque, uint32_t address); 37 void (*write)(void *opaque, uint32_t address, uint32_t data); 38 } MemoryRegionPortio; 39 40 #define PORTIO_END_OF_LIST() { } 41 42 extern const MemoryRegionOps unassigned_io_ops; 43 44 void cpu_outb(uint32_t addr, uint8_t val); 45 void cpu_outw(uint32_t addr, uint16_t val); 46 void cpu_outl(uint32_t addr, uint32_t val); 47 uint8_t cpu_inb(uint32_t addr); 48 uint16_t cpu_inw(uint32_t addr); 49 uint32_t cpu_inl(uint32_t addr); 50 51 typedef struct PortioList { 52 const struct MemoryRegionPortio *ports; 53 Object *owner; 54 struct MemoryRegion *address_space; 55 uint32_t addr; 56 unsigned nr; 57 struct MemoryRegion **regions; 58 void *opaque; 59 const char *name; 60 bool flush_coalesced_mmio; 61 } PortioList; 62 63 void portio_list_init(PortioList *piolist, Object *owner, 64 const struct MemoryRegionPortio *callbacks, 65 void *opaque, const char *name); 66 void portio_list_set_flush_coalesced(PortioList *piolist); 67 void portio_list_destroy(PortioList *piolist); 68 void portio_list_add(PortioList *piolist, 69 struct MemoryRegion *address_space, 70 uint32_t addr); 71 void portio_list_del(PortioList *piolist); 72 void portio_list_set_enabled(PortioList *piolist, bool enabled); 73 void portio_list_set_address(PortioList *piolist, uint32_t addr); 74 75 #endif /* IOPORT_H */ 76