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
|
/*
* Mach Operating System
* Copyright (c) 1993,1992,1991,1990,1989 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
#include <printf.h>
#ifdef MACH_KERNEL
#include <mach/std_types.h>
#else /* MACH_KERNEL */
#include <cpus.h>
#include <platforms.h>
#include <generic.h>
#include <sys/param.h>
#include <mach/machine.h>
#include <machine/cpu.h>
#endif /* MACH_KERNEL */
#ifdef LINUX_DEV
#include <i386/pic.h>
#endif
#include <i386/ipl.h>
#include <chips/busses.h>
/* initialization typecasts */
#define SPL_FIVE (vm_offset_t)SPL5
#define SPL_SIX (vm_offset_t)SPL6
#define SPL_TTY (vm_offset_t)SPLTTY
#if NCOM > 0
extern struct bus_driver comdriver;
extern int comintr();
#endif /* NCOM */
#if NLPR > 0
extern struct bus_driver lprdriver;
extern int lprintr();
#endif /* NLPR */
struct bus_ctlr bus_master_init[] = {
/* driver name unit intr address len phys_address
adaptor alive flags spl pic */
0
};
struct bus_device bus_device_init[] = {
/* driver name unit intr address am phys_address
adaptor alive ctlr slave flags *mi *next sysdep sysdep */
#if NCOM > 0
{&comdriver, "com", 0, comintr, 0x3f8, 8, 0x3f8,
'?', 0, -1, -1, 0, 0, 0, SPL_TTY, 4},
{&comdriver, "com", 1, comintr, 0x2f8, 8, 0x2f8,
'?', 0, -1, -1, 0, 0, 0, SPL_TTY, 3},
{&comdriver, "com", 2, comintr, 0x3e8, 8, 0x3e8,
'?', 0, -1, -1, 0, 0, 0, SPL_TTY, 5},
#endif /* NCOM > 0 */
#ifdef MACH_LPR
#if NLPR > 0
{&lprdriver, "lpr", 0, lprintr, 0x378, 3, 0x378,
'?', 0, -1, -1, 0, 0, 0, SPL_TTY, 7},
{&lprdriver, "lpr", 0, lprintr, 0x278, 3, 0x278,
'?', 0, -1, -1, 0, 0, 0, SPL_TTY, 7},
{&lprdriver, "lpr", 0, lprintr, 0x3bc, 3, 0x3bc,
'?', 0, -1, -1, 0, 0, 0, SPL_TTY, 7},
#endif /* NLPR > 0 */
#endif /* MACH_LPR */
0
};
/*
* probeio:
*
* Probe and subsequently attach devices out on the AT bus.
*
*
*/
void probeio(void)
{
register struct bus_device *device;
register struct bus_ctlr *master;
int i = 0;
for (master = bus_master_init; master->driver; master++)
{
if (configure_bus_master(master->name, master->address,
master->phys_address, i, "atbus"))
i++;
}
for (device = bus_device_init; device->driver; device++)
{
/* ignore what we (should) have found already */
if (device->alive || device->ctlr >= 0)
continue;
if (configure_bus_device(device->name, device->address,
device->phys_address, i, "atbus"))
i++;
}
#if MACH_TTD
/*
* Initialize Remote kernel debugger.
*/
ttd_init();
#endif /* MACH_TTD */
}
void take_dev_irq(
struct bus_device *dev)
{
int pic = (int)dev->sysdep1;
if (intpri[pic] == 0) {
iunit[pic] = dev->unit;
ivect[pic] = dev->intr;
intpri[pic] = (int)dev->sysdep;
form_pic_mask();
} else {
printf("The device below will clobber IRQ %d.\n", pic);
printf("You have two devices at the same IRQ.\n");
printf("This won't work. Reconfigure your hardware and try again.\n");
printf("%s%d: port = %x, spl = %d, pic = %d.\n",
dev->name, dev->unit, dev->address,
dev->sysdep, dev->sysdep1);
while (1);
}
}
void take_ctlr_irq(
struct bus_ctlr *ctlr)
{
int pic = ctlr->sysdep1;
if (intpri[pic] == 0) {
iunit[pic] = ctlr->unit;
ivect[pic] = ctlr->intr;
intpri[pic] = (int)ctlr->sysdep;
form_pic_mask();
} else {
printf("The device below will clobber IRQ %d.\n", pic);
printf("You have two devices at the same IRQ. This won't work.\n");
printf("Reconfigure your hardware and try again.\n");
while (1);
}
}
|
