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
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
/*
* Copyright (C) 2000 Kazumoto Kojima
*
* I/O routine for Hitachi SolutionEngine.
*/
#include <linux/kernel.h>
#include <linux/types.h>
#include <asm/io.h>
#include <mach-se/mach/se.h>
/* MS7750 requires special versions of in*, out* routines, since
PC-like io ports are located at upper half byte of 16-bit word which
can be accessed only with 16-bit wide. */
static inline volatile __u16 *
port2adr(unsigned int port)
{
if (port & 0xff000000)
return ( volatile __u16 *) port;
if (port >= 0x2000)
return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000));
else if (port >= 0x1000)
return (volatile __u16 *) (PA_83902 + (port << 1));
else
return (volatile __u16 *) (PA_SUPERIO + (port << 1));
}
static inline int
shifted_port(unsigned long port)
{
/* For IDE registers, value is not shifted */
if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6)
return 0;
else
return 1;
}
unsigned char se_inb(unsigned long port)
{
if (shifted_port(port))
return (*port2adr(port) >> 8);
else
return (*port2adr(port))&0xff;
}
unsigned char se_inb_p(unsigned long port)
{
unsigned long v;
if (shifted_port(port))
v = (*port2adr(port) >> 8);
else
v = (*port2adr(port))&0xff;
ctrl_delay();
return v;
}
unsigned short se_inw(unsigned long port)
{
if (port >= 0x2000)
return *port2adr(port);
else
maybebadio(port);
return 0;
}
unsigned int se_inl(unsigned long port)
{
maybebadio(port);
return 0;
}
void se_outb(unsigned char value, unsigned long port)
{
if (shifted_port(port))
*(port2adr(port)) = value << 8;
else
*(port2adr(port)) = value;
}
void se_outb_p(unsigned char value, unsigned long port)
{
if (shifted_port(port))
*(port2adr(port)) = value << 8;
else
*(port2adr(port)) = value;
ctrl_delay();
}
void se_outw(unsigned short value, unsigned long port)
{
if (port >= 0x2000)
*port2adr(port) = value;
else
maybebadio(port);
}
void se_outl(unsigned int value, unsigned long port)
{
maybebadio(port);
}
void se_insb(unsigned long port, void *addr, unsigned long count)
{
volatile __u16 *p = port2adr(port);
__u8 *ap = addr;
if (shifted_port(port)) {
while (count--)
*ap++ = *p >> 8;
} else {
while (count--)
*ap++ = *p;
}
}
void se_insw(unsigned long port, void *addr, unsigned long count)
{
volatile __u16 *p = port2adr(port);
__u16 *ap = addr;
while (count--)
*ap++ = *p;
}
void se_insl(unsigned long port, void *addr, unsigned long count)
{
maybebadio(port);
}
void se_outsb(unsigned long port, const void *addr, unsigned long count)
{
volatile __u16 *p = port2adr(port);
const __u8 *ap = addr;
if (shifted_port(port)) {
while (count--)
*p = *ap++ << 8;
} else {
while (count--)
*p = *ap++;
}
}
void se_outsw(unsigned long port, const void *addr, unsigned long count)
{
volatile __u16 *p = port2adr(port);
const __u16 *ap = addr;
while (count--)
*p = *ap++;
}
void se_outsl(unsigned long port, const void *addr, unsigned long count)
{
maybebadio(port);
}
|
