]>
Commit | Line | Data |
---|---|---|
1 | /* | |
2 | * ARM RealView Emulation Baseboard Interrupt Controller | |
3 | * | |
4 | * Copyright (c) 2006-2007 CodeSourcery. | |
5 | * Written by Paul Brook | |
6 | * | |
7 | * This code is licensed under the GPL. | |
8 | */ | |
9 | ||
10 | #include "hw/intc/realview_gic.h" | |
11 | ||
12 | static void realview_gic_set_irq(void *opaque, int irq, int level) | |
13 | { | |
14 | RealViewGICState *s = (RealViewGICState *)opaque; | |
15 | ||
16 | qemu_set_irq(qdev_get_gpio_in(DEVICE(&s->gic), irq), level); | |
17 | } | |
18 | ||
19 | static void realview_gic_realize(DeviceState *dev, Error **errp) | |
20 | { | |
21 | SysBusDevice *sbd = SYS_BUS_DEVICE(dev); | |
22 | RealViewGICState *s = REALVIEW_GIC(dev); | |
23 | SysBusDevice *busdev; | |
24 | Error *err = NULL; | |
25 | /* The GICs on the RealView boards have a fixed nonconfigurable | |
26 | * number of interrupt lines, so we don't need to expose this as | |
27 | * a qdev property. | |
28 | */ | |
29 | int numirq = 96; | |
30 | ||
31 | qdev_prop_set_uint32(DEVICE(&s->gic), "num-irq", numirq); | |
32 | object_property_set_bool(OBJECT(&s->gic), true, "realized", &err); | |
33 | if (err != NULL) { | |
34 | error_propagate(errp, err); | |
35 | return; | |
36 | } | |
37 | busdev = SYS_BUS_DEVICE(&s->gic); | |
38 | ||
39 | /* Pass through outbound IRQ lines from the GIC */ | |
40 | sysbus_pass_irq(sbd, busdev); | |
41 | ||
42 | /* Pass through inbound GPIO lines to the GIC */ | |
43 | qdev_init_gpio_in(dev, realview_gic_set_irq, numirq - 32); | |
44 | ||
45 | memory_region_add_subregion(&s->container, 0, | |
46 | sysbus_mmio_get_region(busdev, 1)); | |
47 | memory_region_add_subregion(&s->container, 0x1000, | |
48 | sysbus_mmio_get_region(busdev, 0)); | |
49 | } | |
50 | ||
51 | static void realview_gic_init(Object *obj) | |
52 | { | |
53 | SysBusDevice *sbd = SYS_BUS_DEVICE(obj); | |
54 | RealViewGICState *s = REALVIEW_GIC(obj); | |
55 | DeviceState *gicdev; | |
56 | ||
57 | memory_region_init(&s->container, OBJECT(s), | |
58 | "realview-gic-container", 0x2000); | |
59 | sysbus_init_mmio(sbd, &s->container); | |
60 | ||
61 | object_initialize(&s->gic, sizeof(s->gic), TYPE_ARM_GIC); | |
62 | gicdev = DEVICE(&s->gic); | |
63 | qdev_set_parent_bus(gicdev, sysbus_get_default()); | |
64 | qdev_prop_set_uint32(gicdev, "num-cpu", 1); | |
65 | } | |
66 | ||
67 | static void realview_gic_class_init(ObjectClass *oc, void *data) | |
68 | { | |
69 | DeviceClass *dc = DEVICE_CLASS(oc); | |
70 | ||
71 | dc->realize = realview_gic_realize; | |
72 | } | |
73 | ||
74 | static const TypeInfo realview_gic_info = { | |
75 | .name = TYPE_REALVIEW_GIC, | |
76 | .parent = TYPE_SYS_BUS_DEVICE, | |
77 | .instance_size = sizeof(RealViewGICState), | |
78 | .instance_init = realview_gic_init, | |
79 | .class_init = realview_gic_class_init, | |
80 | }; | |
81 | ||
82 | static void realview_gic_register_types(void) | |
83 | { | |
84 | type_register_static(&realview_gic_info); | |
85 | } | |
86 | ||
87 | type_init(realview_gic_register_types) |