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
|
/*
* Copyright (c) 1997, Stefan Esser <se@freebsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: pcibus.c,v 1.2 1998/07/12 16:16:20 dfr Exp $
*
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/interrupt.h>
#include <pci/pcivar.h>
#include <machine/chipset.h>
#include <machine/cpuconf.h>
static int cfgmech;
static int devmax;
#ifdef notyet
/* return max number of devices on the bus */
int
pci_maxdevs(pcicfgregs *cfg)
{
return chipset.maxdevs(cfg->bus);
}
#endif
/* read configuration space register */
int
pci_cfgread(pcicfgregs *cfg, int reg, int bytes)
{
switch (bytes) {
case 1:
return chipset.cfgreadb(cfg->bus, cfg->slot, cfg->func, reg);
case 2:
return chipset.cfgreadw(cfg->bus, cfg->slot, cfg->func, reg);
case 4:
return chipset.cfgreadl(cfg->bus, cfg->slot, cfg->func, reg);
}
return ~0;
}
/* write configuration space register */
void
pci_cfgwrite(pcicfgregs *cfg, int reg, int data, int bytes)
{
switch (bytes) {
case 1:
return chipset.cfgwriteb(cfg->bus, cfg->slot, cfg->func, reg, data);
case 2:
return chipset.cfgwritew(cfg->bus, cfg->slot, cfg->func, reg, data);
case 4:
return chipset.cfgwritel(cfg->bus, cfg->slot, cfg->func, reg, data);
}
}
int
pci_cfgopen(void)
{
return 1;
}
/*
* These can disappear when I update the pci code to use the new
* device framework.
*/
struct intrec *
intr_create(void *dev_instance, int irq, inthand2_t handler, void *arg,
intrmask_t *maskptr, int flags)
{
device_t pcib = chipset.bridge;
if (pcib)
return BUS_CREATE_INTR(pcib, pcib,
0x900 + (irq << 4),
(driver_intr_t*) handler, arg);
else
return 0;
}
int
intr_connect(struct intrec *idesc)
{
device_t pcib = chipset.bridge;
if (pcib)
return BUS_CONNECT_INTR(pcib, idesc);
else
return EINVAL;
}
void
alpha_platform_assign_pciintr(pcicfgregs *cfg)
{
if(platform.pci_intr_map)
platform.pci_intr_map((void *)cfg);
}
void
memcpy_fromio(void *d, u_int32_t s, size_t size)
{
char *cp = d;
while (size--)
*cp++ = readb(s++);
}
void
memcpy_toio(u_int32_t d, void *s, size_t size)
{
char *cp = s;
while (size--)
writeb(d++, *cp++);
}
void
memset_io(u_int32_t d, int val, size_t size)
{
while (size--)
writeb(d++, val);
}
#include "opt_ddb.h"
#ifdef DDB
#include <ddb/ddb.h>
DB_COMMAND(in, db_in)
{
int c;
int size;
u_int32_t val;
if (!have_addr)
return;
size = -1;
while (c = *modif++) {
switch (c) {
case 'b':
size = 1;
break;
case 'w':
size = 2;
break;
case 'l':
size = 4;
break;
}
}
if (size < 0) {
db_printf("bad size\n");
return;
}
if (count <= 0) count = 1;
while (--count >= 0) {
db_printf("%08x:\t", addr);
switch (size) {
case 1:
db_printf("%02x\n", inb(addr));
break;
case 2:
db_printf("%04x\n", inw(addr));
break;
case 4:
db_printf("%08x\n", inl(addr));
break;
}
}
}
#endif
|
