LXR qemu/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
  18typedef struct CcwDevice {
  19    DeviceState parent_obj;
  20    SubchDev *sch;
  21    /* <cssid>.<ssid>.<device number> */
  22    CssDevId bus_id;
  23} CcwDevice;
  24
  25typedef struct CCWDeviceClass {
  26    DeviceClass parent_class;
  27    void (*unplug)(HotplugHandler *, DeviceState *, Error **);
  28} CCWDeviceClass;
  29
  30static inline CcwDevice *to_ccw_dev_fast(DeviceState *d)
  31{
  32    return container_of(d, CcwDevice, parent_obj);
  33}
  34
  35#define TYPE_CCW_DEVICE "ccw-device"
  36
  37#define CCW_DEVICE(obj) OBJECT_CHECK(CcwDevice, (obj), TYPE_CCW_DEVICE)
  38#define CCW_DEVICE_GET_CLASS(obj) \
  39    OBJECT_GET_CLASS(CCWDeviceClass, (obj), TYPE_CCW_DEVICE)
  40#define CCW_DEVICE_CLASS(klass) \
  41    OBJECT_CLASS_CHECK(CCWDeviceClass, (klass), TYPE_CCW_DEVICE)
  42
  43#endif
  44