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    Contents of /trunk/mkinitrd-magellan/klibc/usr/include/arch/x86_64/sys/io.h

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    Revision 842 - (show annotations) (download)
    Mon May 4 17:21:24 2009 UTC (15 years ago) by niro
    File MIME type: text/plain
    File size: 3474 byte(s) 
    -applied klibc-1.5.14-x86_64-fix-io.h.patch to fix errors in io.h
    1 /* ----------------------------------------------------------------------- *
    2 *
    3 * Copyright 2004 H. Peter Anvin - All Rights Reserved
    4 *
    5 * Permission is hereby granted, free of charge, to any person
    6 * obtaining a copy of this software and associated documentation
    7 * files (the "Software"), to deal in the Software without
    8 * restriction, including without limitation the rights to use,
    9 * copy, modify, merge, publish, distribute, sublicense, and/or
    10 * sell copies of the Software, and to permit persons to whom
    11 * the Software is furnished to do so, subject to the following
    12 * conditions:
    13 *
    14 * The above copyright notice and this permission notice shall
    15 * be included in all copies or substantial portions of the Software.
    16 *
    17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
    18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
    19 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
    20 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
    21 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
    22 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
    23 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
    24 * OTHER DEALINGS IN THE SOFTWARE.
    25 *
    26 * ----------------------------------------------------------------------- */
    27
    28 /*
    29 * sys/io.h for the i386 architecture
    30 *
    31 * Basic I/O macros
    32 */
    33
    34 #ifndef _SYS_IO_H
    35 #define _SYS_IO_H 1
    36
    37 /* I/O-related system calls */
    38
    39 int iopl(int);
    40 int ioperm(unsigned long, unsigned long, int);
    41
    42 /* Basic I/O macros */
    43
    44 static __inline__ void outb(unsigned char __v, unsigned short __p)
    45 {
    46 asm volatile ("outb %0,%1" : : "a" (__v), "dN"(__p));
    47 }
    48
    49 static __inline__ void outw(unsigned short __v, unsigned short __p)
    50 {
    51 asm volatile ("outw %0,%1" : : "a" (__v), "dN"(__p));
    52 }
    53
    54 static __inline__ void outl(unsigned int __v, unsigned short __p)
    55 {
    56 asm volatile ("outl %0,%1" : : "a" (__v), "dN"(__p));
    57 }
    58
    59 static __inline__ unsigned char inb(unsigned short __p)
    60 {
    61 unsigned char __v;
    62 asm volatile ("inb %1,%0" : "=a" (__v) : "dN"(__p));
    63 return __v;
    64 }
    65
    66 static __inline__ unsigned short inw(unsigned short __p)
    67 {
    68 unsigned short __v;
    69 asm volatile ("inw %1,%0" : "=a" (__v) : "dN"(__p));
    70 return __v;
    71 }
    72
    73 static __inline__ unsigned int inl(unsigned short __p)
    74 {
    75 unsigned int __v;
    76 asm volatile ("inl %1,%0" : "=a" (__v) : "dN"(__p));
    77 return __v;
    78 }
    79
    80 /* String I/O macros */
    81
    82 static __inline__ void
    83 outsb(unsigned short __p, const void *__d, unsigned long __n)
    84 {
    85 asm volatile ("cld; rep; outsb"
    86 : "+S" (__d), "+c"(__n)
    87 : "d"(__p));
    88 }
    89
    90 static __inline__ void
    91 outsw(unsigned short __p, const void *__d, unsigned long __n)
    92 {
    93 asm volatile ("cld; rep; outsw"
    94 : "+S" (__d), "+c"(__n)
    95 : "d"(__p));
    96 }
    97
    98 static __inline__ void
    99 outsl(unsigned short __p, const void *__d, unsigned long __n)
    100 {
    101 asm volatile ("cld; rep; outsl"
    102 : "+S" (__d), "+c"(__n)
    103 : "d"(__p));
    104 }
    105
    106 static __inline__ void insb(unsigned short __p, void *__d, unsigned long __n)
    107 {
    108 asm volatile ("cld; rep; insb"
    109 : "+D" (__d), "+c"(__n)
    110 : "d"(__p));
    111 }
    112
    113 static __inline__ void insw(unsigned short __p, void *__d, unsigned long __n)
    114 {
    115 asm volatile ("cld; rep; insw"
    116 : "+D" (__d), "+c"(__n)
    117 : "d"(__p));
    118 }
    119
    120 static __inline__ void insl(unsigned short __p, void *__d, unsigned long __n)
    121 {
    122 asm volatile ("cld; rep; insl"
    123 : "+D" (__d), "+c"(__n)
    124 : "d"(__p));
    125 }
    126
    127 #endif /* _SYS_IO_H */