hw/core/hotplug.c

   1 /*
   2  * Hotplug handler interface.
   3  *
   4  * Copyright (c) 2014 Red Hat Inc.
   5  *
   6  * Authors:
   7  *  Igor Mammedov <imammedo@redhat.com>,
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  10  * See the COPYING file in the top-level directory.
  11  */
  12 #include "qemu/osdep.h"
  13 #include "hw/hotplug.h"
  14 #include "qemu/module.h"
  15
  16 void hotplug_handler_pre_plug(HotplugHandler *plug_handler,
  17                               DeviceState *plugged_dev,
  18                               Error **errp)
  19 {
  20     HotplugHandlerClass *hdc = HOTPLUG_HANDLER_GET_CLASS(plug_handler);
  21
  22     if (hdc->pre_plug) {
  23         hdc->pre_plug(plug_handler, plugged_dev, errp);
  24     }
  25 }
  26
  27 void hotplug_handler_plug(HotplugHandler *plug_handler,
  28                           DeviceState *plugged_dev,
  29                           Error **errp)
  30 {
  31     HotplugHandlerClass *hdc = HOTPLUG_HANDLER_GET_CLASS(plug_handler);
  32
  33     if (hdc->plug) {
  34         hdc->plug(plug_handler, plugged_dev, errp);
  35     }
  36 }
  37
  38 void hotplug_handler_unplug_request(HotplugHandler *plug_handler,
  39                                     DeviceState *plugged_dev,
  40                                     Error **errp)
  41 {
  42     HotplugHandlerClass *hdc = HOTPLUG_HANDLER_GET_CLASS(plug_handler);
  43
  44     if (hdc->unplug_request) {
  45         hdc->unplug_request(plug_handler, plugged_dev, errp);
  46     }
  47 }
  48
  49 void hotplug_handler_unplug(HotplugHandler *plug_handler,
  50                             DeviceState *plugged_dev,
  51                             Error **errp)
  52 {
  53     HotplugHandlerClass *hdc = HOTPLUG_HANDLER_GET_CLASS(plug_handler);
  54
  55     if (hdc->unplug) {
  56         hdc->unplug(plug_handler, plugged_dev, errp);
  57     }
  58 }
  59
  60 static const TypeInfo hotplug_handler_info = {
  61     .name          = TYPE_HOTPLUG_HANDLER,
  62     .parent        = TYPE_INTERFACE,
  63     .class_size = sizeof(HotplugHandlerClass),
  64 };
  65
  66 static void hotplug_handler_register_types(void)
  67 {
  68     type_register_static(&hotplug_handler_info);
  69 }
  70
  71 type_init(hotplug_handler_register_types)