mirror of
https://git.proxmox.com/git/grub2
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73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 1996,2000,2002,2007 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* Based on sys/io.h from GNU libc. */
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#ifndef GRUB_IO_H
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#define GRUB_IO_H 1
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typedef unsigned short int grub_port_t;
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static __inline unsigned char
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grub_inb (unsigned short int port)
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{
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unsigned char _v;
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__asm__ __volatile__ ("inb %w1,%0":"=a" (_v):"Nd" (port));
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return _v;
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}
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static __inline unsigned short int
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grub_inw (unsigned short int port)
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{
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unsigned short _v;
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__asm__ __volatile__ ("inw %w1,%0":"=a" (_v):"Nd" (port));
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return _v;
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}
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static __inline unsigned int
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grub_inl (unsigned short int port)
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{
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unsigned int _v;
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__asm__ __volatile__ ("inl %w1,%0":"=a" (_v):"Nd" (port));
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return _v;
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}
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static __inline void
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grub_outb (unsigned char value, unsigned short int port)
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{
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__asm__ __volatile__ ("outb %b0,%w1": :"a" (value), "Nd" (port));
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}
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static __inline void
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grub_outw (unsigned short int value, unsigned short int port)
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{
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__asm__ __volatile__ ("outw %w0,%w1": :"a" (value), "Nd" (port));
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}
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static __inline void
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grub_outl (unsigned int value, unsigned short int port)
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{
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__asm__ __volatile__ ("outl %0,%w1": :"a" (value), "Nd" (port));
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}
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#endif /* _SYS_IO_H */
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