| 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 */ |