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/*
* Hotplug handler interface.
*
* Copyright (c) 2014 Red Hat Inc.
*
* Authors:
* Igor Mammedov <imammedo@redhat.com>,
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#ifndef HOTPLUG_H
#define HOTPLUG_H
#include "qom/object.h"
#define TYPE_HOTPLUG_HANDLER "hotplug-handler"
typedef struct HotplugHandlerClass HotplugHandlerClass;
#define HOTPLUG_HANDLER_CLASS(klass) \
OBJECT_CLASS_CHECK(HotplugHandlerClass, (klass), TYPE_HOTPLUG_HANDLER)
#define HOTPLUG_HANDLER_GET_CLASS(obj) \
OBJECT_GET_CLASS(HotplugHandlerClass, (obj), TYPE_HOTPLUG_HANDLER)
#define HOTPLUG_HANDLER(obj) \
INTERFACE_CHECK(HotplugHandler, (obj), TYPE_HOTPLUG_HANDLER)
typedef struct HotplugHandler HotplugHandler;
/**
* hotplug_fn:
* @plug_handler: a device performing plug/uplug action
* @plugged_dev: a device that has been (un)plugged
* @errp: returns an error if this function fails
*/
typedef void (*hotplug_fn)(HotplugHandler *plug_handler,
DeviceState *plugged_dev, Error **errp);
/**
* HotplugDeviceClass:
*
* Interface to be implemented by a device performing
* hardware (un)plug functions.
*
* @parent: Opaque parent interface.
* @pre_plug: pre plug callback called at start of device.realize(true)
* @plug: plug callback called at end of device.realize(true).
* @unplug_request: unplug request callback.
* Used as a means to initiate device unplug for devices that
* require asynchronous unplug handling.
* @unplug: unplug callback.
* Used for device removal with devices that implement
* asynchronous and synchronous (surprise) removal.
*/
struct HotplugHandlerClass {
/* <private> */
InterfaceClass parent;
/* <public> */
hotplug_fn pre_plug;
hotplug_fn plug;
hotplug_fn unplug_request;
hotplug_fn unplug;
};
/**
* hotplug_handler_plug:
*
* Call #HotplugHandlerClass.plug callback of @plug_handler.
*/
void hotplug_handler_plug(HotplugHandler *plug_handler,
DeviceState *plugged_dev,
Error **errp);
/**
* hotplug_handler_pre_plug:
*
* Call #HotplugHandlerClass.pre_plug callback of @plug_handler.
*/
void hotplug_handler_pre_plug(HotplugHandler *plug_handler,
DeviceState *plugged_dev,
Error **errp);
/**
* hotplug_handler_unplug_request:
*
* Calls #HotplugHandlerClass.unplug_request callback of @plug_handler.
*/
void hotplug_handler_unplug_request(HotplugHandler *plug_handler,
DeviceState *plugged_dev,
Error **errp);
/**
* hotplug_handler_unplug:
*
* Calls #HotplugHandlerClass.unplug callback of @plug_handler.
*/
void hotplug_handler_unplug(HotplugHandler *plug_handler,
DeviceState *plugged_dev,
Error **errp);
#endif
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