/* $Id: UsbTestServiceGadgetHostInternal.h $ */
/** @file
 * UsbTestServ - Remote USB test configuration and execution server, Gadget API.
 */

/*
 * Copyright (C) 2016-2020 Oracle Corporation
 *
 * This file is part of VirtualBox Open Source Edition (OSE), as
 * available from http://www.virtualbox.org. This file is free software;
 * you can redistribute it and/or modify it under the terms of the GNU
 * General Public License (GPL) as published by the Free Software
 * Foundation, in version 2 as it comes in the "COPYING" file of the
 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
 *
 * The contents of this file may alternatively be used under the terms
 * of the Common Development and Distribution License Version 1.0
 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
 * VirtualBox OSE distribution, in which case the provisions of the
 * CDDL are applicable instead of those of the GPL.
 *
 * You may elect to license modified versions of this file under the
 * terms and conditions of either the GPL or the CDDL or both.
 */

#ifndef VBOX_INCLUDED_SRC_usb_UsbTestServiceGadgetHostInternal_h
#define VBOX_INCLUDED_SRC_usb_UsbTestServiceGadgetHostInternal_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif

#include <iprt/cdefs.h>
#include <iprt/types.h>

#include "UsbTestServiceGadget.h"

RT_C_DECLS_BEGIN

/** Pointer to an opaque type dependent gadget host instance data. */
typedef struct UTSGADGETHOSTTYPEINT *PUTSGADGETHOSTTYPEINT;
/** Pointer to a gadget host instance pointer. */
typedef PUTSGADGETHOSTTYPEINT *PPUTSGADETHOSTTYPEINT;

/**
 * Gadget host interface.
 */
typedef struct UTSGADGETHOSTIF
{
    /** The gadget host type implemented. */
    UTSGADGETHOSTTYPE         enmType;
    /** Description. */
    const char               *pszDesc;
    /** Size of the interface specific instance data. */
    size_t                    cbIf;

    /**
     * Initializes the gadget host interface.
     *
     * @returns IPRT status code.
     * @param   pIf           The interface specific instance data.
     * @param   paCfg         The configuration of the interface.
     */
    DECLR3CALLBACKMEMBER(int, pfnInit, (PUTSGADGETHOSTTYPEINT pIf, PCUTSGADGETCFGITEM paCfg));

    /**
     * Terminates the gadget host interface.
     *
     * @returns nothing.
     * @param   pIf           The interface specific instance data.
     */
    DECLR3CALLBACKMEMBER(void, pfnTerm, (PUTSGADGETHOSTTYPEINT pIf));

    /**
     * Adds the given gadget to the host interface.
     *
     * @returns IPRT status code.
     * @param   pIf           The interface specific instance data.
     * @param   hGadget       The gadget handle to add.
     */
    DECLR3CALLBACKMEMBER(int, pfnGadgetAdd, (PUTSGADGETHOSTTYPEINT pIf, UTSGADGET hGadget));

    /**
     * Removes the given gadget from the host interface.
     *
     * @returns IPRT status code.
     * @param   pIf           The interface specific instance data.
     * @param   hGadget       The gadget handle to remove.
     */
    DECLR3CALLBACKMEMBER(int, pfnGadgetRemove, (PUTSGADGETHOSTTYPEINT pIf, UTSGADGET hGadget));

    /**
     * Connects the given gadget to the host interface so it appears as connected to the client
     * of the gadget host.
     *
     * @returns IPRT status code.
     * @param   pIf           The interface specific instance data.
     * @param   hGadget       The gadget handle to add.
     */
    DECLR3CALLBACKMEMBER(int, pfnGadgetConnect, (PUTSGADGETHOSTTYPEINT pIf, UTSGADGET hGadget));

    /**
     * Disconnects the given gadget from the host interface so it appears as disconnected to the client
     * of the gadget host.
     *
     * @returns IPRT status code.
     * @param   pIf           The interface specific instance data.
     * @param   hGadget       The gadget handle to add.
     */
    DECLR3CALLBACKMEMBER(int, pfnGadgetDisconnect, (PUTSGADGETHOSTTYPEINT pIf, UTSGADGET hGadget));

} UTSGADGETHOSTIF;
/** Pointer to a gadget host callback table. */
typedef UTSGADGETHOSTIF *PUTSGADGETHOSTIF;
/** Pointer to a const gadget host callback table. */
typedef const struct UTSGADGETHOSTIF *PCUTSGADGETHOSTIF;

extern UTSGADGETHOSTIF const g_UtsGadgetHostIfUsbIp;

RT_C_DECLS_END

#endif /* !VBOX_INCLUDED_SRC_usb_UsbTestServiceGadgetHostInternal_h */

