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
  18 static 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
  40 static 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
  48 static 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
  56 static 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
  66 static 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
  74 static void virtio_ccw_serial_register(void)
  75 {
  76     type_register_static(&virtio_ccw_serial);
  77 }
  78
  79 type_init(virtio_ccw_serial_register)