LXR qemu/hw/s390x/virtio-ccw-serial.c

   1/*
   2 * virtio ccw serial implementation
   3 *
   4 * Copyright 2012, 2015 IBM Corp.
   5 * Author(s): Cornelia Huck <cornelia.huck@de.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 "hw/virtio/virtio.h"
  14#include "qemu/module.h"
  15#include "hw/virtio/virtio-serial.h"
  16#include "virtio-ccw.h"
  17
  18static void virtio_ccw_serial_realize(VirtioCcwDevice *ccw_dev, Error **errp)
  19{
  20    VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(ccw_dev);
  21    DeviceState *vdev = DEVICE(&dev->vdev);
  22    DeviceState *proxy = DEVICE(ccw_dev);
  23    char *bus_name;
  24
  25    /*
  26     * For command line compatibility, this sets the virtio-serial-device bus
  27     * name as before.
  28     */
  29    if (proxy->id) {
  30        bus_name = g_strdup_printf("%s.0", proxy->id);
  31        virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
  32        g_free(bus_name);
  33    }
  34
  35    qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
  36    object_property_set_bool(OBJECT(vdev), true, "realized", errp);
  37}
  38
  39
  40static void virtio_ccw_serial_instance_init(Object *obj)
  41{
  42    VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(obj);
  43
  44    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  45                                TYPE_VIRTIO_SERIAL);
  46}
  47
  48static Property virtio_ccw_serial_properties[] = {
  49    DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
  50                    VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
  51    DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
  52                       VIRTIO_CCW_MAX_REV),
  53    DEFINE_PROP_END_OF_LIST(),
  54};
  55
  56static void virtio_ccw_serial_class_init(ObjectClass *klass, void *data)
  57{
  58    DeviceClass *dc = DEVICE_CLASS(klass);
  59    VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
  60
  61    k->realize = virtio_ccw_serial_realize;
  62    dc->props = virtio_ccw_serial_properties;
  63    set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
  64}
  65
  66static const TypeInfo virtio_ccw_serial = {
  67    .name          = TYPE_VIRTIO_SERIAL_CCW,
  68    .parent        = TYPE_VIRTIO_CCW_DEVICE,
  69    .instance_size = sizeof(VirtioSerialCcw),
  70    .instance_init = virtio_ccw_serial_instance_init,
  71    .class_init    = virtio_ccw_serial_class_init,
  72};
  73
  74static void virtio_ccw_serial_register(void)
  75{
  76    type_register_static(&virtio_ccw_serial);
  77}
  78
  79type_init(virtio_ccw_serial_register)
  80