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/qdev-properties.h"
  16#include "hw/virtio/virtio-serial.h"
  17#include "virtio-ccw.h"
  18#include "hw/virtio/virtio-serial.h"
  19
  20#define TYPE_VIRTIO_SERIAL_CCW "virtio-serial-ccw"
  21OBJECT_DECLARE_SIMPLE_TYPE(VirtioSerialCcw, VIRTIO_SERIAL_CCW)
  22
  23struct VirtioSerialCcw {
  24    VirtioCcwDevice parent_obj;
  25    VirtIOSerial vdev;
  26};
  27
  28static void virtio_ccw_serial_realize(VirtioCcwDevice *ccw_dev, Error **errp)
  29{
  30    VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(ccw_dev);
  31    DeviceState *vdev = DEVICE(&dev->vdev);
  32    DeviceState *proxy = DEVICE(ccw_dev);
  33    char *bus_name;
  34
  35    /*
  36     * For command line compatibility, this sets the virtio-serial-device bus
  37     * name as before.
  38     */
  39    if (proxy->id) {
  40        bus_name = g_strdup_printf("%s.0", proxy->id);
  41        virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
  42        g_free(bus_name);
  43    }
  44
  45    qdev_realize(vdev, BUS(&ccw_dev->bus), errp);
  46}
  47
  48
  49static void virtio_ccw_serial_instance_init(Object *obj)
  50{
  51    VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(obj);
  52
  53    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  54                                TYPE_VIRTIO_SERIAL);
  55}
  56
  57static Property virtio_ccw_serial_properties[] = {
  58    DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
  59                    VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
  60    DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
  61                       VIRTIO_CCW_MAX_REV),
  62    DEFINE_PROP_END_OF_LIST(),
  63};
  64
  65static void virtio_ccw_serial_class_init(ObjectClass *klass, void *data)
  66{
  67    DeviceClass *dc = DEVICE_CLASS(klass);
  68    VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
  69
  70    k->realize = virtio_ccw_serial_realize;
  71    device_class_set_props(dc, virtio_ccw_serial_properties);
  72    set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
  73}
  74
  75static const TypeInfo virtio_ccw_serial = {
  76    .name          = TYPE_VIRTIO_SERIAL_CCW,
  77    .parent        = TYPE_VIRTIO_CCW_DEVICE,
  78    .instance_size = sizeof(VirtioSerialCcw),
  79    .instance_init = virtio_ccw_serial_instance_init,
  80    .class_init    = virtio_ccw_serial_class_init,
  81};
  82
  83static void virtio_ccw_serial_register(void)
  84{
  85    type_register_static(&virtio_ccw_serial);
  86}
  87
  88type_init(virtio_ccw_serial_register)
  89