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MC146818 RTC: add GPIO access to output IRQ

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The MC146818 RTC device has output IRQ line. Currently the corresponding field
is only accessible through direct access. Such access violates Qemu model.

The patch makes the field accessible through GPIO. It also updates the setting
of the IRQ during initialization.

Signed-off-by: Efimov Vasily <real@ispras.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Efimov Vasily 2016-06-22 15:24:57 +03:00 • committed by Paolo Bonzini
parent 250263033c
commit 3638439d54
1 changed files with 4 additions and 2 deletions
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6
hw/timer/mc146818rtc.c
View file

@ -906,6 +906,8 @@ static void rtc_realizefn(DeviceState *dev, Error **errp)
object_property_add_alias(qdev_get_machine(), "rtc-time",
OBJECT(s), "date", NULL);
qdev_init_gpio_out(dev, &s->irq, 1);
}
ISADevice *rtc_init(ISABus *bus, int base_year, qemu_irq intercept_irq)
@ -920,9 +922,9 @@ ISADevice *rtc_init(ISABus *bus, int base_year, qemu_irq intercept_irq)
qdev_prop_set_int32(dev, "base_year", base_year);
qdev_init_nofail(dev);
if (intercept_irq) {
s->irq = intercept_irq;
qdev_connect_gpio_out(dev, 0, intercept_irq);
} else {
isa_init_irq(isadev, &s->irq, RTC_ISA_IRQ);
isa_connect_gpio_out(isadev, 0, RTC_ISA_IRQ);
}
QLIST_INSERT_HEAD(&rtc_devices, s, link);