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 55