2 * ARM RealView Emulation Baseboard Interrupt Controller
4 * Copyright (c) 2006-2007 CodeSourcery.
5 * Written by Paul Brook
7 * This code is licensed under the GPL.
10 #include "qemu/osdep.h"
11 #include "hw/intc/realview_gic.h"
13 static void realview_gic_set_irq(void *opaque
, int irq
, int level
)
15 RealViewGICState
*s
= (RealViewGICState
*)opaque
;
17 qemu_set_irq(qdev_get_gpio_in(DEVICE(&s
->gic
), irq
), level
);
20 static void realview_gic_realize(DeviceState
*dev
, Error
**errp
)
22 SysBusDevice
*sbd
= SYS_BUS_DEVICE(dev
);
23 RealViewGICState
*s
= REALVIEW_GIC(dev
);
26 /* The GICs on the RealView boards have a fixed nonconfigurable
27 * number of interrupt lines, so we don't need to expose this as
32 qdev_prop_set_uint32(DEVICE(&s
->gic
), "num-irq", numirq
);
33 object_property_set_bool(OBJECT(&s
->gic
), true, "realized", &err
);
35 error_propagate(errp
, err
);
38 busdev
= SYS_BUS_DEVICE(&s
->gic
);
40 /* Pass through outbound IRQ lines from the GIC */
41 sysbus_pass_irq(sbd
, busdev
);
43 /* Pass through inbound GPIO lines to the GIC */
44 qdev_init_gpio_in(dev
, realview_gic_set_irq
, numirq
- 32);
46 memory_region_add_subregion(&s
->container
, 0,
47 sysbus_mmio_get_region(busdev
, 1));
48 memory_region_add_subregion(&s
->container
, 0x1000,
49 sysbus_mmio_get_region(busdev
, 0));
52 static void realview_gic_init(Object
*obj
)
54 SysBusDevice
*sbd
= SYS_BUS_DEVICE(obj
);
55 RealViewGICState
*s
= REALVIEW_GIC(obj
);
58 memory_region_init(&s
->container
, OBJECT(s
),
59 "realview-gic-container", 0x2000);
60 sysbus_init_mmio(sbd
, &s
->container
);
62 object_initialize(&s
->gic
, sizeof(s
->gic
), TYPE_ARM_GIC
);
63 gicdev
= DEVICE(&s
->gic
);
64 qdev_set_parent_bus(gicdev
, sysbus_get_default());
65 qdev_prop_set_uint32(gicdev
, "num-cpu", 1);
68 static void realview_gic_class_init(ObjectClass
*oc
, void *data
)
70 DeviceClass
*dc
= DEVICE_CLASS(oc
);
72 dc
->realize
= realview_gic_realize
;
75 static const TypeInfo realview_gic_info
= {
76 .name
= TYPE_REALVIEW_GIC
,
77 .parent
= TYPE_SYS_BUS_DEVICE
,
78 .instance_size
= sizeof(RealViewGICState
),
79 .instance_init
= realview_gic_init
,
80 .class_init
= realview_gic_class_init
,
83 static void realview_gic_register_types(void)
85 type_register_static(&realview_gic_info
);
88 type_init(realview_gic_register_types
)