1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
|
#if !defined(__io_cpu_h__)
#define __io_cpu_h__
#ifdef LINUX /* LINUX */
#include <sys/io.h>
#define SET_IOPL() iopl(3)
#define RESET_IOPL() iopl(0)
#elif defined(__svr4__) /* Solaris for x86 */
#include <sys/sysi86.h>
#include <sys/psw.h>
#ifndef SI86IOPL
#define SET_IOPL() sysi86(SI86V86,V86SC_IOPL,PS_IOPL)
#define RESET_IOPL() sysi86(SI86V86,V86SC_IOPL,0)
#else
#define SET_IOPL() sysi86(SI86IOPL,3)
#define RESET_IOPL() sysi86(SI86IOPL,0)
#endif
#elif NETBSD /* NetBSD, OpenBSD */
#include "machine/sysarch.h"
#define SET_IOPL() i386_iopl(1)
#define RESET_IOPL() i386_iopl(0)
#else /* FreeBSD */
extern int iofl;
#define SET_IOPL() (iofl = open("/dev/io",000))
#define RESET_IOPL() close(iofl)
#endif
extern int iopl_counter;
/*
* These assume GCC is being used with GAS.
*/
static __inline__ unsigned char
my_inb(unsigned short port)
{
unsigned char ret;
__asm__ __volatile__("inb %1,%0" : "=a" (ret) : "d" (port));
return ret;
}
static __inline__ unsigned short
my_inw(unsigned short port)
{
unsigned short ret;
__asm__ __volatile__("inw %1,%0" : "=a" (ret) : "d" (port));
return ret;
}
static __inline__ unsigned int
my_inl(unsigned short port)
{
unsigned int ret;
__asm__ __volatile__("inl %1,%0" : "=a" (ret) : "d" (port));
return ret;
}
static __inline__ void
my_outb(unsigned short port, unsigned char val)
{
__asm__ __volatile__("outb %0,%1" : : "a" (val), "d" (port));
}
static __inline__ void
my_outw(unsigned short port, unsigned short val)
{
__asm__ __volatile__("outw %0,%1" : : "a" (val), "d" (port));
}
static __inline__ void
my_outl(unsigned short port, unsigned int val)
{
__asm__ __volatile__("outl %0,%1" : : "a" (val), "d" (port));
}
#define INb(x) my_inb((x))
#define INw(x) my_inw((x))
#define INl(x) my_inl((x))
#define OUTb(x,y) my_outb((x),(y))
#define OUTw(x,y) my_outw((x),(y))
#define OUTl(x,y) my_outl((x),(y))
#define WAIT my_outb(0xEB,0x00)
#endif /*__io_cpu_h__*/
|
