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b804e8a6 JL |
1 | /* |
2 | * Common device infrastructure for devices in the virtual css | |
3 | * | |
4 | * Copyright 2016 IBM Corp. | |
5 | * Author(s): Jing Liu <liujbjl@linux.vnet.ibm.com> | |
6 | * | |
7 | * This work is licensed under the terms of the GNU GPL, version 2 or (at | |
8 | * your option) any later version. See the COPYING file in the top-level | |
9 | * directory. | |
10 | */ | |
0b8fa32f | 11 | |
b804e8a6 JL |
12 | #include "qemu/osdep.h" |
13 | #include "ccw-device.h" | |
0b8fa32f | 14 | #include "qemu/module.h" |
b804e8a6 | 15 | |
d8d98db5 DJS |
16 | static void ccw_device_refill_ids(CcwDevice *dev) |
17 | { | |
18 | SubchDev *sch = dev->sch; | |
19 | ||
20 | assert(sch); | |
21 | ||
22 | dev->dev_id.cssid = sch->cssid; | |
23 | dev->dev_id.ssid = sch->ssid; | |
24 | dev->dev_id.devid = sch->devno; | |
25 | dev->dev_id.valid = true; | |
26 | ||
27 | dev->subch_id.cssid = sch->cssid; | |
28 | dev->subch_id.ssid = sch->ssid; | |
29 | dev->subch_id.devid = sch->schid; | |
30 | dev->subch_id.valid = true; | |
31 | } | |
32 | ||
33 | static void ccw_device_realize(CcwDevice *dev, Error **errp) | |
34 | { | |
35 | ccw_device_refill_ids(dev); | |
36 | } | |
37 | ||
38 | static Property ccw_device_properties[] = { | |
2a78ac66 | 39 | DEFINE_PROP_CSS_DEV_ID("devno", CcwDevice, devno), |
d8d98db5 DJS |
40 | DEFINE_PROP_CSS_DEV_ID_RO("dev_id", CcwDevice, dev_id), |
41 | DEFINE_PROP_CSS_DEV_ID_RO("subch_id", CcwDevice, subch_id), | |
42 | DEFINE_PROP_END_OF_LIST(), | |
43 | }; | |
44 | ||
838fb84f CH |
45 | static void ccw_device_reset(DeviceState *d) |
46 | { | |
47 | CcwDevice *ccw_dev = CCW_DEVICE(d); | |
48 | ||
49 | css_reset_sch(ccw_dev->sch); | |
50 | } | |
51 | ||
d8d98db5 DJS |
52 | static void ccw_device_class_init(ObjectClass *klass, void *data) |
53 | { | |
54 | DeviceClass *dc = DEVICE_CLASS(klass); | |
55 | CCWDeviceClass *k = CCW_DEVICE_CLASS(klass); | |
56 | ||
57 | k->realize = ccw_device_realize; | |
58 | k->refill_ids = ccw_device_refill_ids; | |
59 | dc->props = ccw_device_properties; | |
838fb84f | 60 | dc->reset = ccw_device_reset; |
d8d98db5 DJS |
61 | } |
62 | ||
517ff12c HP |
63 | const VMStateDescription vmstate_ccw_dev = { |
64 | .name = "s390_ccw_dev", | |
65 | .version_id = 1, | |
66 | .minimum_version_id = 1, | |
67 | .fields = (VMStateField[]) { | |
68 | VMSTATE_STRUCT_POINTER(sch, CcwDevice, vmstate_subch_dev, SubchDev), | |
69 | VMSTATE_END_OF_LIST() | |
70 | } | |
71 | }; | |
72 | ||
b804e8a6 JL |
73 | static const TypeInfo ccw_device_info = { |
74 | .name = TYPE_CCW_DEVICE, | |
75 | .parent = TYPE_DEVICE, | |
76 | .instance_size = sizeof(CcwDevice), | |
77 | .class_size = sizeof(CCWDeviceClass), | |
d8d98db5 | 78 | .class_init = ccw_device_class_init, |
b804e8a6 JL |
79 | .abstract = true, |
80 | }; | |
81 | ||
82 | static void ccw_device_register(void) | |
83 | { | |
84 | type_register_static(&ccw_device_info); | |
85 | } | |
86 | ||
87 | type_init(ccw_device_register) |