meson: convert hw/vfio
[qemu.git] / hw / s390x / ccw-device.h
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 #ifndef HW_S390X_CCW_DEVICE_H
13 #define HW_S390X_CCW_DEVICE_H
14 #include "qom/object.h"
15 #include "hw/qdev-core.h"
16 #include "hw/s390x/css.h"
17
18 typedef struct CcwDevice {
19 DeviceState parent_obj;
20 SubchDev *sch;
21 /* <cssid>.<ssid>.<device number> */
22 /* The user-set busid of the virtual ccw device. */
23 CssDevId devno;
24 /* The actual busid of the virtual ccw device. */
25 CssDevId dev_id;
26 /* The actual busid of the virtual subchannel. */
27 CssDevId subch_id;
28 } CcwDevice;
29
30 extern const VMStateDescription vmstate_ccw_dev;
31 #define VMSTATE_CCW_DEVICE(_field, _state) \
32 VMSTATE_STRUCT(_field, _state, 1, vmstate_ccw_dev, CcwDevice)
33
34 typedef struct CCWDeviceClass {
35 DeviceClass parent_class;
36 void (*unplug)(HotplugHandler *, DeviceState *, Error **);
37 void (*realize)(CcwDevice *, Error **);
38 void (*refill_ids)(CcwDevice *);
39 } CCWDeviceClass;
40
41 static inline CcwDevice *to_ccw_dev_fast(DeviceState *d)
42 {
43 return container_of(d, CcwDevice, parent_obj);
44 }
45
46 #define TYPE_CCW_DEVICE "ccw-device"
47
48 #define CCW_DEVICE(obj) OBJECT_CHECK(CcwDevice, (obj), TYPE_CCW_DEVICE)
49 #define CCW_DEVICE_GET_CLASS(obj) \
50 OBJECT_GET_CLASS(CCWDeviceClass, (obj), TYPE_CCW_DEVICE)
51 #define CCW_DEVICE_CLASS(klass) \
52 OBJECT_CLASS_CHECK(CCWDeviceClass, (klass), TYPE_CCW_DEVICE)
53
54 #endif