diff options
Diffstat (limited to 'hw/timer/i8254.c')
| -rw-r--r-- | hw/timer/i8254.c | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/hw/timer/i8254.c b/hw/timer/i8254.c index 20c0c3601d..16c8dd687f 100644 --- a/hw/timer/i8254.c +++ b/hw/timer/i8254.c @@ -35,6 +35,15 @@ #define RW_STATE_WORD0 3 #define RW_STATE_WORD1 4 +#define PIT_CLASS(class) OBJECT_CLASS_CHECK(PITClass, (class), TYPE_I8254) +#define PIT_GET_CLASS(obj) OBJECT_GET_CLASS(PITClass, (obj), TYPE_I8254) + +typedef struct PITClass { + PITCommonClass parent_class; + + DeviceRealize parent_realize; +} PITClass; + static void pit_irq_timer_update(PITChannelState *s, int64_t current_time); static int pit_get_count(PITChannelState *s) @@ -265,7 +274,7 @@ static void pit_irq_timer(void *opaque) static void pit_reset(DeviceState *dev) { - PITCommonState *pit = DO_UPCAST(PITCommonState, dev.qdev, dev); + PITCommonState *pit = PIT_COMMON(dev); PITChannelState *s; pit_reset_common(pit); @@ -313,20 +322,22 @@ static void pit_post_load(PITCommonState *s) } } -static int pit_initfn(PITCommonState *pit) +static void pit_realizefn(DeviceState *dev, Error **err) { + PITCommonState *pit = PIT_COMMON(dev); + PITClass *pc = PIT_GET_CLASS(dev); PITChannelState *s; s = &pit->channels[0]; /* the timer 0 is connected to an IRQ */ s->irq_timer = qemu_new_timer_ns(vm_clock, pit_irq_timer, s); - qdev_init_gpio_out(&pit->dev.qdev, &s->irq, 1); + qdev_init_gpio_out(dev, &s->irq, 1); memory_region_init_io(&pit->ioports, &pit_ioport_ops, pit, "pit", 4); - qdev_init_gpio_in(&pit->dev.qdev, pit_irq_control, 1); + qdev_init_gpio_in(dev, pit_irq_control, 1); - return 0; + pc->parent_realize(dev, err); } static Property pit_properties[] = { @@ -336,10 +347,12 @@ static Property pit_properties[] = { static void pit_class_initfn(ObjectClass *klass, void *data) { + PITClass *pc = PIT_CLASS(klass); PITCommonClass *k = PIT_COMMON_CLASS(klass); DeviceClass *dc = DEVICE_CLASS(klass); - k->init = pit_initfn; + pc->parent_realize = dc->realize; + dc->realize = pit_realizefn; k->set_channel_gate = pit_set_channel_gate; k->get_channel_info = pit_get_channel_info_common; k->post_load = pit_post_load; @@ -348,10 +361,11 @@ static void pit_class_initfn(ObjectClass *klass, void *data) } static const TypeInfo pit_info = { - .name = "isa-pit", + .name = TYPE_I8254, .parent = TYPE_PIT_COMMON, .instance_size = sizeof(PITCommonState), .class_init = pit_class_initfn, + .class_size = sizeof(PITClass), }; static void pit_register_types(void) |