haraldwolff/qemu-patch-raspberry4
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i8254: Convert to MemoryRegion

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Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Richard Henderson 2011-08-10 15:28:15 -07:00 committed by Avi Kivity
parent beae397945
commit 60ea6aa8fc
1 changed files with 13 additions and 3 deletions
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16
hw/i8254.c
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@ -55,6 +55,7 @@ typedef struct PITChannelState {
typedef struct PITState {
ISADevice dev;
MemoryRegion ioports;
uint32_t irq;
uint32_t iobase;
PITChannelState channels[3];
@ -506,6 +507,16 @@ void hpet_pit_enable(void)
pit_load_count(s, 0);
}
static const MemoryRegionPortio pit_portio[] = {
{ 0, 4, 1, .write = pit_ioport_write },
{ 0, 3, 1, .read = pit_ioport_read },
PORTIO_END_OF_LIST()
};
static const MemoryRegionOps pit_ioport_ops = {
.old_portio = pit_portio
};
static int pit_initfn(ISADevice *dev)
{
PITState *pit = DO_UPCAST(PITState, dev, dev);
@ -516,9 +527,8 @@ static int pit_initfn(ISADevice *dev)
s->irq_timer = qemu_new_timer_ns(vm_clock, pit_irq_timer, s);
s->irq = isa_get_irq(pit->irq);
register_ioport_write(pit->iobase, 4, 1, pit_ioport_write, pit);
register_ioport_read(pit->iobase, 3, 1, pit_ioport_read, pit);
isa_init_ioport(dev, pit->iobase);
memory_region_init_io(&pit->ioports, &pit_ioport_ops, pit, "pit", 4);
isa_register_ioport(dev, &pit->ioports, pit->iobase);
qdev_set_legacy_instance_id(&dev->qdev, pit->iobase, 2);