ioport.h (2371B)
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 IOPORT_H 25 #define IOPORT_H 26 27 #include "exec/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 uint32_t base; /* private field */ 39 } MemoryRegionPortio; 40 41 #define PORTIO_END_OF_LIST() { } 42 43 #ifndef CONFIG_USER_ONLY 44 extern const MemoryRegionOps unassigned_io_ops; 45 #endif 46 47 void cpu_outb(uint32_t addr, uint8_t val); 48 void cpu_outw(uint32_t addr, uint16_t val); 49 void cpu_outl(uint32_t addr, uint32_t val); 50 uint8_t cpu_inb(uint32_t addr); 51 uint16_t cpu_inw(uint32_t addr); 52 uint32_t cpu_inl(uint32_t addr); 53 54 typedef struct PortioList { 55 const struct MemoryRegionPortio *ports; 56 Object *owner; 57 struct MemoryRegion *address_space; 58 unsigned nr; 59 struct MemoryRegion **regions; 60 void *opaque; 61 const char *name; 62 bool flush_coalesced_mmio; 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_set_flush_coalesced(PortioList *piolist); 69 void portio_list_destroy(PortioList *piolist); 70 void portio_list_add(PortioList *piolist, 71 struct MemoryRegion *address_space, 72 uint32_t addr); 73 void portio_list_del(PortioList *piolist); 74 75 #endif /* IOPORT_H */