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 "qapi/error.h"
12 #include "qemu/module.h"
13 #include "hw/intc/realview_gic.h"
15 #include "hw/qdev-properties.h"
17 static void realview_gic_set_irq(void *opaque
, int irq
, int level
)
19 RealViewGICState
*s
= (RealViewGICState
*)opaque
;
21 qemu_set_irq(qdev_get_gpio_in(DEVICE(&s
->gic
), irq
), level
);
24 static void realview_gic_realize(DeviceState
*dev
, Error
**errp
)
26 SysBusDevice
*sbd
= SYS_BUS_DEVICE(dev
);
27 RealViewGICState
*s
= REALVIEW_GIC(dev
);
30 /* The GICs on the RealView boards have a fixed nonconfigurable
31 * number of interrupt lines, so we don't need to expose this as
36 qdev_prop_set_uint32(DEVICE(&s
->gic
), "num-irq", numirq
);
37 object_property_set_bool(OBJECT(&s
->gic
), true, "realized", &err
);
39 error_propagate(errp
, err
);
42 busdev
= SYS_BUS_DEVICE(&s
->gic
);
44 /* Pass through outbound IRQ lines from the GIC */
45 sysbus_pass_irq(sbd
, busdev
);
47 /* Pass through inbound GPIO lines to the GIC */
48 qdev_init_gpio_in(dev
, realview_gic_set_irq
, numirq
- 32);
50 memory_region_add_subregion(&s
->container
, 0,
51 sysbus_mmio_get_region(busdev
, 1));
52 memory_region_add_subregion(&s
->container
, 0x1000,
53 sysbus_mmio_get_region(busdev
, 0));
56 static void realview_gic_init(Object
*obj
)
58 SysBusDevice
*sbd
= SYS_BUS_DEVICE(obj
);
59 RealViewGICState
*s
= REALVIEW_GIC(obj
);
61 memory_region_init(&s
->container
, OBJECT(s
),
62 "realview-gic-container", 0x2000);
63 sysbus_init_mmio(sbd
, &s
->container
);
65 sysbus_init_child_obj(obj
, "gic", &s
->gic
, sizeof(s
->gic
), TYPE_ARM_GIC
);
66 qdev_prop_set_uint32(DEVICE(&s
->gic
), "num-cpu", 1);
69 static void realview_gic_class_init(ObjectClass
*oc
, void *data
)
71 DeviceClass
*dc
= DEVICE_CLASS(oc
);
73 dc
->realize
= realview_gic_realize
;
76 static const TypeInfo realview_gic_info
= {
77 .name
= TYPE_REALVIEW_GIC
,
78 .parent
= TYPE_SYS_BUS_DEVICE
,
79 .instance_size
= sizeof(RealViewGICState
),
80 .instance_init
= realview_gic_init
,
81 .class_init
= realview_gic_class_init
,
84 static void realview_gic_register_types(void)
86 type_register_static(&realview_gic_info
);
89 type_init(realview_gic_register_types
)