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 | */ |
11 | |
12 | #include "qemu/osdep.h" |
13 | #include "ccw-device.h" |
14 | #include "hw/qdev-properties.h" |
15 | #include "qemu/module.h" |
16 | |
17 | static void ccw_device_refill_ids(CcwDevice *dev) |
18 | { |
19 | SubchDev *sch = dev->sch; |
20 | |
21 | assert(sch); |
22 | |
23 | dev->dev_id.cssid = sch->cssid; |
24 | dev->dev_id.ssid = sch->ssid; |
25 | dev->dev_id.devid = sch->devno; |
26 | dev->dev_id.valid = true; |
27 | |
28 | dev->subch_id.cssid = sch->cssid; |
29 | dev->subch_id.ssid = sch->ssid; |
30 | dev->subch_id.devid = sch->schid; |
31 | dev->subch_id.valid = true; |
32 | } |
33 | |
34 | static void ccw_device_realize(CcwDevice *dev, Error **errp) |
35 | { |
36 | ccw_device_refill_ids(dev); |
37 | } |
38 | |
39 | static Property ccw_device_properties[] = { |
40 | DEFINE_PROP_CSS_DEV_ID("devno" , CcwDevice, devno), |
41 | DEFINE_PROP_CSS_DEV_ID_RO("dev_id" , CcwDevice, dev_id), |
42 | DEFINE_PROP_CSS_DEV_ID_RO("subch_id" , CcwDevice, subch_id), |
43 | DEFINE_PROP_END_OF_LIST(), |
44 | }; |
45 | |
46 | static void ccw_device_reset(DeviceState *d) |
47 | { |
48 | CcwDevice *ccw_dev = CCW_DEVICE(d); |
49 | |
50 | css_reset_sch(ccw_dev->sch); |
51 | } |
52 | |
53 | static void ccw_device_class_init(ObjectClass *klass, void *data) |
54 | { |
55 | DeviceClass *dc = DEVICE_CLASS(klass); |
56 | CCWDeviceClass *k = CCW_DEVICE_CLASS(klass); |
57 | |
58 | k->realize = ccw_device_realize; |
59 | k->refill_ids = ccw_device_refill_ids; |
60 | dc->props = ccw_device_properties; |
61 | dc->reset = ccw_device_reset; |
62 | } |
63 | |
64 | const VMStateDescription vmstate_ccw_dev = { |
65 | .name = "s390_ccw_dev" , |
66 | .version_id = 1, |
67 | .minimum_version_id = 1, |
68 | .fields = (VMStateField[]) { |
69 | VMSTATE_STRUCT_POINTER(sch, CcwDevice, vmstate_subch_dev, SubchDev), |
70 | VMSTATE_END_OF_LIST() |
71 | } |
72 | }; |
73 | |
74 | static const TypeInfo ccw_device_info = { |
75 | .name = TYPE_CCW_DEVICE, |
76 | .parent = TYPE_DEVICE, |
77 | .instance_size = sizeof(CcwDevice), |
78 | .class_size = sizeof(CCWDeviceClass), |
79 | .class_init = ccw_device_class_init, |
80 | .abstract = true, |
81 | }; |
82 | |
83 | static void ccw_device_register(void) |
84 | { |
85 | type_register_static(&ccw_device_info); |
86 | } |
87 | |
88 | type_init(ccw_device_register) |
89 | |