| /* |
| * GRUB -- GRand Unified Bootloader |
| * Copyright (C) 2009 Free Software Foundation, Inc. |
| * |
| * GRUB is free software: you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation, either version 3 of the License, or |
| * (at your option) any later version. |
| * |
| * GRUB is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with GRUB. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #ifndef GRUB_IO_H |
| #define GRUB_IO_H 1 |
| |
| #include <grub/types.h> |
| |
| typedef grub_addr_t grub_port_t; |
| |
| static __inline unsigned char |
| grub_inb (grub_port_t port) |
| { |
| return *(volatile grub_uint8_t *) port; |
| } |
| |
| static __inline unsigned short int |
| grub_inw (grub_port_t port) |
| { |
| return *(volatile grub_uint16_t *) port; |
| } |
| |
| static __inline unsigned int |
| grub_inl (grub_port_t port) |
| { |
| return *(volatile grub_uint32_t *) port; |
| } |
| |
| static __inline void |
| grub_outb (unsigned char value, grub_port_t port) |
| { |
| *(volatile grub_uint8_t *) port = value; |
| } |
| |
| static __inline void |
| grub_outw (unsigned short int value, grub_port_t port) |
| { |
| *(volatile grub_uint16_t *) port = value; |
| } |
| |
| static __inline void |
| grub_outl (unsigned int value, grub_port_t port) |
| { |
| *(volatile grub_uint32_t *) port = value; |
| } |
| |
| #endif /* _SYS_IO_H */ |