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
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
|
/*
* linux/arch/m32r/kernel/io_usrv.c
*
* Typical I/O routines for uServer board.
*
* Copyright (c) 2001 - 2003 Hiroyuki Kondo, Hirokazu Takata,
* Hitoshi Yamamoto, Takeo Takahashi
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file "COPYING" in the main directory of this
* archive for more details.
*
*/
#include <linux/config.h>
#include <asm/m32r.h>
#include <asm/page.h>
#include <asm/io.h>
#include <linux/types.h>
#include "../drivers/m32r_cfc.h"
extern void pcc_ioread_byte(int, unsigned long, void *, size_t, size_t, int);
extern void pcc_ioread_word(int, unsigned long, void *, size_t, size_t, int);
extern void pcc_iowrite_byte(int, unsigned long, void *, size_t, size_t, int);
extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int);
#define CFC_IOSTART CFC_IOPORT_BASE
#define CFC_IOEND (CFC_IOSTART + (M32R_PCC_MAPSIZE * M32R_MAX_PCC) - 1)
#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
#define UART0_REGSTART 0x04c20000
#define UART1_REGSTART 0x04c20100
#define UART_IOMAP_SIZE 8
#define UART0_IOSTART 0x3f8
#define UART0_IOEND (UART0_IOSTART + UART_IOMAP_SIZE - 1)
#define UART1_IOSTART 0x2f8
#define UART1_IOEND (UART1_IOSTART + UART_IOMAP_SIZE - 1)
#endif /* CONFIG_SERIAL_8250 || CONFIG_SERIAL_8250_MODULE */
#define PORT2ADDR(port) _port2addr(port)
static __inline__ void *_port2addr(unsigned long port)
{
#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
if (port >= UART0_IOSTART && port <= UART0_IOEND)
port = ((port - UART0_IOSTART) << 1) + UART0_REGSTART;
else if (port >= UART1_IOSTART && port <= UART1_IOEND)
port = ((port - UART1_IOSTART) << 1) + UART1_REGSTART;
#endif /* CONFIG_SERIAL_8250 || CONFIG_SERIAL_8250_MODULE */
return (void *)(port + NONCACHE_OFFSET);
}
static __inline__ void delay(void)
{
__asm__ __volatile__ ("push r0; \n\t pop r0;" : : :"memory");
}
unsigned char _inb(unsigned long port)
{
if (port >= CFC_IOSTART && port <= CFC_IOEND) {
unsigned char b;
pcc_ioread_byte(0, port, &b, sizeof(b), 1, 0);
return b;
} else
return *(volatile unsigned char *)PORT2ADDR(port);
}
unsigned short _inw(unsigned long port)
{
if (port >= CFC_IOSTART && port <= CFC_IOEND) {
unsigned short w;
pcc_ioread_word(0, port, &w, sizeof(w), 1, 0);
return w;
} else
return *(volatile unsigned short *)PORT2ADDR(port);
}
unsigned long _inl(unsigned long port)
{
if (port >= CFC_IOSTART && port <= CFC_IOEND) {
unsigned long l;
pcc_ioread_word(0, port, &l, sizeof(l), 1, 0);
return l;
} else
return *(volatile unsigned long *)PORT2ADDR(port);
}
unsigned char _inb_p(unsigned long port)
{
unsigned char b;
if (port >= CFC_IOSTART && port <= CFC_IOEND) {
pcc_ioread_byte(0, port, &b, sizeof(b), 1, 0);
return b;
} else {
b = *(volatile unsigned char *)PORT2ADDR(port);
delay();
return b;
}
}
unsigned short _inw_p(unsigned long port)
{
unsigned short w;
if (port >= CFC_IOSTART && port <= CFC_IOEND) {
pcc_ioread_word(0, port, &w, sizeof(w), 1, 0);
return w;
} else {
w = *(volatile unsigned short *)PORT2ADDR(port);
delay();
return w;
}
}
unsigned long _inl_p(unsigned long port)
{
unsigned long v;
v = *(volatile unsigned long *)PORT2ADDR(port);
delay();
return v;
}
void _outb(unsigned char b, unsigned long port)
{
if (port >= CFC_IOSTART && port <= CFC_IOEND)
pcc_iowrite_byte(0, port, &b, sizeof(b), 1, 0);
else
*(volatile unsigned char *)PORT2ADDR(port) = b;
}
void _outw(unsigned short w, unsigned long port)
{
if (port >= CFC_IOSTART && port <= CFC_IOEND)
pcc_iowrite_word(0, port, &w, sizeof(w), 1, 0);
else
*(volatile unsigned short *)PORT2ADDR(port) = w;
}
void _outl(unsigned long l, unsigned long port)
{
if (port >= CFC_IOSTART && port <= CFC_IOEND)
pcc_iowrite_word(0, port, &l, sizeof(l), 1, 0);
else
*(volatile unsigned long *)PORT2ADDR(port) = l;
}
void _outb_p(unsigned char b, unsigned long port)
{
if (port >= CFC_IOSTART && port <= CFC_IOEND)
pcc_iowrite_byte(0, port, &b, sizeof(b), 1, 0);
else
*(volatile unsigned char *)PORT2ADDR(port) = b;
delay();
}
void _outw_p(unsigned short w, unsigned long port)
{
if (port >= CFC_IOSTART && port <= CFC_IOEND)
pcc_iowrite_word(0, port, &w, sizeof(w), 1, 0);
else
*(volatile unsigned short *)PORT2ADDR(port) = w;
delay();
}
void _outl_p(unsigned long l, unsigned long port)
{
*(volatile unsigned long *)PORT2ADDR(port) = l;
delay();
}
void _insb(unsigned int port, void * addr, unsigned long count)
{
if (port >= CFC_IOSTART && port <= CFC_IOEND)
pcc_ioread_byte(0, port, addr, sizeof(unsigned char), count, 1);
else {
unsigned char *buf = addr;
unsigned char *portp = PORT2ADDR(port);
while (count--)
*buf++ = *(volatile unsigned char *)portp;
}
}
void _insw(unsigned int port, void * addr, unsigned long count)
{
unsigned short *buf = addr;
unsigned short *portp;
if (port >= CFC_IOSTART && port <= CFC_IOEND)
pcc_ioread_word(0, port, addr, sizeof(unsigned short), count,
1);
else {
portp = PORT2ADDR(port);
while (count--)
*buf++ = *(volatile unsigned short *)portp;
}
}
void _insl(unsigned int port, void * addr, unsigned long count)
{
unsigned long *buf = addr;
unsigned long *portp;
portp = PORT2ADDR(port);
while (count--)
*buf++ = *(volatile unsigned long *)portp;
}
void _outsb(unsigned int port, const void * addr, unsigned long count)
{
const unsigned char *buf = addr;
unsigned char *portp;
if (port >= CFC_IOSTART && port <= CFC_IOEND)
pcc_iowrite_byte(0, port, (void *)addr, sizeof(unsigned char),
count, 1);
else {
portp = PORT2ADDR(port);
while (count--)
*(volatile unsigned char *)portp = *buf++;
}
}
void _outsw(unsigned int port, const void * addr, unsigned long count)
{
const unsigned short *buf = addr;
unsigned short *portp;
if (port >= CFC_IOSTART && port <= CFC_IOEND)
pcc_iowrite_word(0, port, (void *)addr, sizeof(unsigned short),
count, 1);
else {
portp = PORT2ADDR(port);
while (count--)
*(volatile unsigned short *)portp = *buf++;
}
}
void _outsl(unsigned int port, const void * addr, unsigned long count)
{
const unsigned long *buf = addr;
unsigned char *portp;
portp = PORT2ADDR(port);
while (count--)
*(volatile unsigned long *)portp = *buf++;
}
|
