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