From 485f6ecd453d8a2fd8b9b9fadea03159d8b50797 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:54:16 +0200 Subject: Adding upstream version 2.06. Signed-off-by: Daniel Baumann --- include/grub/i386/io.h | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 include/grub/i386/io.h (limited to 'include/grub/i386/io.h') diff --git a/include/grub/i386/io.h b/include/grub/i386/io.h new file mode 100644 index 0000000..e9cd809 --- /dev/null +++ b/include/grub/i386/io.h @@ -0,0 +1,72 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 1996,2000,2002,2007 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 . + */ + +/* Based on sys/io.h from GNU libc. */ + +#ifndef GRUB_IO_H +#define GRUB_IO_H 1 + +typedef unsigned short int grub_port_t; + +static __inline unsigned char +grub_inb (unsigned short int port) +{ + unsigned char _v; + + asm volatile ("inb %w1,%0":"=a" (_v):"Nd" (port)); + return _v; +} + +static __inline unsigned short int +grub_inw (unsigned short int port) +{ + unsigned short _v; + + asm volatile ("inw %w1,%0":"=a" (_v):"Nd" (port)); + return _v; +} + +static __inline unsigned int +grub_inl (unsigned short int port) +{ + unsigned int _v; + + asm volatile ("inl %w1,%0":"=a" (_v):"Nd" (port)); + return _v; +} + +static __inline void +grub_outb (unsigned char value, unsigned short int port) +{ + asm volatile ("outb %b0,%w1": :"a" (value), "Nd" (port)); +} + +static __inline void +grub_outw (unsigned short int value, unsigned short int port) +{ + asm volatile ("outw %w0,%w1": :"a" (value), "Nd" (port)); + +} + +static __inline void +grub_outl (unsigned int value, unsigned short int port) +{ + asm volatile ("outl %0,%w1": :"a" (value), "Nd" (port)); +} + +#endif /* _SYS_IO_H */ -- cgit v1.2.3