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
|
/*
* isa bus support for qdev.
*
* Copyright (c) 2009 Gerd Hoffmann <kraxel@redhat.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "hw.h"
#include "sysemu.h"
#include "isa.h"
struct ISABus {
BusState qbus;
};
static ISABus *isabus;
static struct BusInfo isa_bus_info = {
.name = "ISA",
.size = sizeof(ISABus),
.props = (Property[]) {
DEFINE_PROP_HEX32("iobase", ISADevice, iobase[0], -1),
DEFINE_PROP_HEX32("iobase2", ISADevice, iobase[1], -1),
DEFINE_PROP_END_OF_LIST(),
}
};
ISABus *isa_bus_new(DeviceState *dev)
{
if (isabus) {
fprintf(stderr, "Can't create a second ISA bus\n");
return NULL;
}
isabus = FROM_QBUS(ISABus, qbus_create(&isa_bus_info, dev, NULL));
return isabus;
}
void isa_connect_irq(ISADevice *dev, int n, qemu_irq irq)
{
assert(n >= 0 && n < dev->nirqs);
if (dev->irqs[n])
*dev->irqs[n] = irq;
}
void isa_init_irq(ISADevice *dev, qemu_irq *p)
{
assert(dev->nirqs < ARRAY_SIZE(dev->irqs));
dev->irqs[dev->nirqs] = p;
dev->nirqs++;
}
static void isa_qdev_init(DeviceState *qdev, DeviceInfo *base)
{
ISADevice *dev = DO_UPCAST(ISADevice, qdev, qdev);
ISADeviceInfo *info = DO_UPCAST(ISADeviceInfo, qdev, base);
info->init(dev);
}
void isa_qdev_register(ISADeviceInfo *info)
{
info->qdev.init = isa_qdev_init;
info->qdev.bus_info = &isa_bus_info;
qdev_register(&info->qdev);
}
ISADevice *isa_create_simple(const char *name, uint32_t iobase, uint32_t iobase2)
{
DeviceState *dev;
ISADevice *isa;
if (!isabus) {
fprintf(stderr, "Tried to create isa device %s with no isa bus present.\n", name);
return NULL;
}
dev = qdev_create(&isabus->qbus, name);
isa = DO_UPCAST(ISADevice, qdev, dev);
isa->iobase[0] = iobase;
isa->iobase[1] = iobase2;
qdev_init(dev);
return isa;
}
|
