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9c16fa79 AG |
1 | /* |
2 | * QEMU IndustryPack emulation | |
3 | * | |
4 | * Copyright (C) 2012 Igalia, S.L. | |
b996aed5 | 5 | * Author: Alberto Garcia <berto@igalia.com> |
9c16fa79 AG |
6 | * |
7 | * This code is licensed under the GNU GPL v2 or (at your option) any | |
8 | * later version. | |
9 | */ | |
10 | ||
0430891c | 11 | #include "qemu/osdep.h" |
da34e65c | 12 | #include "qapi/error.h" |
0b8fa32f | 13 | #include "qemu/module.h" |
1f9c4cfd | 14 | #include "hw/ipack/ipack.h" |
64552b6b | 15 | #include "hw/irq.h" |
a27bd6c7 | 16 | #include "hw/qdev-properties.h" |
d6454270 | 17 | #include "migration/vmstate.h" |
9c16fa79 AG |
18 | |
19 | IPackDevice *ipack_device_find(IPackBus *bus, int32_t slot) | |
20 | { | |
21 | BusChild *kid; | |
22 | ||
23 | QTAILQ_FOREACH(kid, &BUS(bus)->children, sibling) { | |
24 | DeviceState *qdev = kid->child; | |
25 | IPackDevice *ip = IPACK_DEVICE(qdev); | |
26 | if (ip->slot == slot) { | |
27 | return ip; | |
28 | } | |
29 | } | |
30 | return NULL; | |
31 | } | |
32 | ||
77cbb28a AF |
33 | void ipack_bus_new_inplace(IPackBus *bus, size_t bus_size, |
34 | DeviceState *parent, | |
9c16fa79 AG |
35 | const char *name, uint8_t n_slots, |
36 | qemu_irq_handler handler) | |
37 | { | |
fb17dfe0 | 38 | qbus_create_inplace(bus, bus_size, TYPE_IPACK_BUS, parent, name); |
9c16fa79 AG |
39 | bus->n_slots = n_slots; |
40 | bus->set_irq = handler; | |
41 | } | |
42 | ||
5c570902 | 43 | static void ipack_device_realize(DeviceState *dev, Error **errp) |
9c16fa79 | 44 | { |
5c570902 AF |
45 | IPackDevice *idev = IPACK_DEVICE(dev); |
46 | IPackBus *bus = IPACK_BUS(qdev_get_parent_bus(dev)); | |
9c16fa79 AG |
47 | IPackDeviceClass *k = IPACK_DEVICE_GET_CLASS(dev); |
48 | ||
5c570902 AF |
49 | if (idev->slot < 0) { |
50 | idev->slot = bus->free_slot; | |
9c16fa79 | 51 | } |
5c570902 AF |
52 | if (idev->slot >= bus->n_slots) { |
53 | error_setg(errp, "Only %" PRIu8 " slots available.", bus->n_slots); | |
54 | return; | |
9c16fa79 | 55 | } |
5c570902 | 56 | bus->free_slot = idev->slot + 1; |
9c16fa79 | 57 | |
5c570902 | 58 | idev->irq = qemu_allocate_irqs(bus->set_irq, idev, 2); |
9c16fa79 | 59 | |
5c570902 | 60 | k->realize(dev, errp); |
9c16fa79 AG |
61 | } |
62 | ||
b69c3c21 | 63 | static void ipack_device_unrealize(DeviceState *dev) |
9c16fa79 | 64 | { |
5c570902 | 65 | IPackDevice *idev = IPACK_DEVICE(dev); |
9c16fa79 AG |
66 | IPackDeviceClass *k = IPACK_DEVICE_GET_CLASS(dev); |
67 | ||
5c570902 | 68 | if (k->unrealize) { |
b69c3c21 | 69 | k->unrealize(dev); |
5c570902 | 70 | return; |
9c16fa79 AG |
71 | } |
72 | ||
f173d57a | 73 | qemu_free_irqs(idev->irq, 2); |
9c16fa79 AG |
74 | } |
75 | ||
76 | static Property ipack_device_props[] = { | |
77 | DEFINE_PROP_INT32("slot", IPackDevice, slot, -1), | |
78 | DEFINE_PROP_END_OF_LIST() | |
79 | }; | |
80 | ||
81 | static void ipack_device_class_init(ObjectClass *klass, void *data) | |
82 | { | |
83 | DeviceClass *k = DEVICE_CLASS(klass); | |
5c570902 | 84 | |
125ee0ed | 85 | set_bit(DEVICE_CATEGORY_INPUT, k->categories); |
9c16fa79 | 86 | k->bus_type = TYPE_IPACK_BUS; |
5c570902 AF |
87 | k->realize = ipack_device_realize; |
88 | k->unrealize = ipack_device_unrealize; | |
4f67d30b | 89 | device_class_set_props(k, ipack_device_props); |
9c16fa79 AG |
90 | } |
91 | ||
92 | const VMStateDescription vmstate_ipack_device = { | |
93 | .name = "ipack_device", | |
94 | .version_id = 1, | |
95 | .minimum_version_id = 1, | |
35d08458 | 96 | .fields = (VMStateField[]) { |
9c16fa79 AG |
97 | VMSTATE_INT32(slot, IPackDevice), |
98 | VMSTATE_END_OF_LIST() | |
99 | } | |
100 | }; | |
101 | ||
102 | static const TypeInfo ipack_device_info = { | |
103 | .name = TYPE_IPACK_DEVICE, | |
104 | .parent = TYPE_DEVICE, | |
105 | .instance_size = sizeof(IPackDevice), | |
106 | .class_size = sizeof(IPackDeviceClass), | |
107 | .class_init = ipack_device_class_init, | |
108 | .abstract = true, | |
109 | }; | |
110 | ||
111 | static const TypeInfo ipack_bus_info = { | |
112 | .name = TYPE_IPACK_BUS, | |
113 | .parent = TYPE_BUS, | |
114 | .instance_size = sizeof(IPackBus), | |
115 | }; | |
116 | ||
117 | static void ipack_register_types(void) | |
118 | { | |
119 | type_register_static(&ipack_device_info); | |
120 | type_register_static(&ipack_bus_info); | |
121 | } | |
122 | ||
123 | type_init(ipack_register_types) |