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 #ifndef CONFIG_USER_ONLY 49 extern const MemoryRegionOps unassigned_io_ops; 50 #endif 51 52 void cpu_outb(pio_addr_t addr, uint8_t val); 53 void cpu_outw(pio_addr_t addr, uint16_t val); 54 void cpu_outl(pio_addr_t addr, uint32_t val); 55 uint8_t cpu_inb(pio_addr_t addr); 56 uint16_t cpu_inw(pio_addr_t addr); 57 uint32_t cpu_inl(pio_addr_t addr); 58 59 typedef struct PortioList { 60 const struct MemoryRegionPortio *ports; 61 Object *owner; 62 struct MemoryRegion *address_space; 63 unsigned nr; 64 struct MemoryRegion **regions; 65 void *opaque; 66 const char *name; 67 bool flush_coalesced_mmio; 68 } PortioList; 69 70 void portio_list_init(PortioList *piolist, Object *owner, 71 const struct MemoryRegionPortio *callbacks, 72 void *opaque, const char *name); 73 void portio_list_set_flush_coalesced(PortioList *piolist); 74 void portio_list_destroy(PortioList *piolist); 75 void portio_list_add(PortioList *piolist, 76 struct MemoryRegion *address_space, 77 uint32_t addr); 78 void portio_list_del(PortioList *piolist); 79 80 #endif /* IOPORT_H */ 81