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
|
#include "hw.h"
#include "qdev.h"
#include "isa.h"
struct testdev {
ISADevice dev;
CharDriverState *chr;
};
static void test_device_serial_write(void *opaque, uint32_t addr, uint32_t data)
{
struct testdev *dev = opaque;
uint8_t buf[1] = { data };
if (dev->chr) {
qemu_chr_write(dev->chr, buf, 1);
}
}
static void test_device_exit(void *opaque, uint32_t addr, uint32_t data)
{
exit(data);
}
static uint32_t test_device_memsize_read(void *opaque, uint32_t addr)
{
return ram_size;
}
static void test_device_irq_line(void *opaque, uint32_t addr, uint32_t data)
{
extern qemu_irq *ioapic_irq_hack;
qemu_set_irq(ioapic_irq_hack[addr - 0x2000], !!data);
}
static int init_test_device(ISADevice *isa)
{
struct testdev *dev = DO_UPCAST(struct testdev, dev, isa);
register_ioport_write(0xf1, 1, 1, test_device_serial_write, dev);
register_ioport_write(0xf4, 1, 4, test_device_exit, dev);
register_ioport_read(0xd1, 1, 4, test_device_memsize_read, dev);
register_ioport_write(0x2000, 24, 1, test_device_irq_line, NULL);
return 0;
}
static ISADeviceInfo testdev_info = {
.qdev.name = "testdev",
.qdev.size = sizeof(struct testdev),
.init = init_test_device,
.qdev.props = (Property[]) {
DEFINE_PROP_CHR("chardev", struct testdev, chr),
DEFINE_PROP_END_OF_LIST(),
},
};
static void testdev_register_devices(void)
{
isa_qdev_register(&testdev_info);
}
device_init(testdev_register_devices)
|
GitWeb
