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Keep track of ISA ports ISA device is using in qdev.

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Store all io ports used by device in ISADevice structure.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Gleb Natapov 2010-12-08 13:34:56 +02:00 • committed by Blue Swirl
parent 21150814d9
commit dee41d58ef
13 changed files with 57 additions and 0 deletions
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25
hw/isa-bus.c
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@ -89,6 +89,31 @@ void isa_init_irq(ISADevice *dev, qemu_irq *p, int isairq)
dev->nirqs++;
}
static void isa_init_ioport_one(ISADevice *dev, uint16_t ioport)
{
assert(dev->nioports < ARRAY_SIZE(dev->ioports));
dev->ioports[dev->nioports++] = ioport;
}
static int isa_cmp_ports(const void *p1, const void *p2)
{
return *(uint16_t*)p1 - *(uint16_t*)p2;
}
void isa_init_ioport_range(ISADevice *dev, uint16_t start, uint16_t length)
{
int i;
for (i = start; i < start + length; i++) {
isa_init_ioport_one(dev, i);
}
qsort(dev->ioports, dev->nioports, sizeof(dev->ioports[0]), isa_cmp_ports);
}
void isa_init_ioport(ISADevice *dev, uint16_t ioport)
{
isa_init_ioport_range(dev, ioport, 1);
}
static int isa_qdev_init(DeviceState *qdev, DeviceInfo *base)
{
ISADevice *dev = DO_UPCAST(ISADevice, qdev, qdev);