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+/* $Id: pdmwebcaminfs.h $ */
+/** @file
+ * webcaminfs - interfaces between dev and driver.
+ */
+
+/*
+ * Copyright (C) 2011-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox 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.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+#ifndef VBOX_INCLUDED_vmm_pdmwebcaminfs_h
+#define VBOX_INCLUDED_vmm_pdmwebcaminfs_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+#include <VBox/types.h>
+
+struct VRDEVIDEOINDEVICEDESC;
+struct VRDEVIDEOINPAYLOADHDR;
+struct VRDEVIDEOINCTRLHDR;
+
+
+/** @defgroup grp_pdm_ifs_webcam PDM Web Camera Interfaces
+ * @ingroup grp_pdm_interfaces
+ * @{
+ */
+
+/** Pointer to the web camera driver (up) interface. */
+typedef struct PDMIWEBCAMDRV *PPDMIWEBCAMDRV;
+/**
+ * Web camera interface driver provided by the driver to the device,
+ * i.e. facing upwards.
+ */
+typedef struct PDMIWEBCAMDRV
+{
+ /**
+ * The PDM device is ready to get webcam notifications.
+ *
+ * @param pInterface Pointer to the interface.
+ * @param fReady Whether the device is ready.
+ */
+ DECLR3CALLBACKMEMBER(void, pfnReady,(PPDMIWEBCAMDRV pInterface, bool fReady));
+
+ /**
+ * Send a control request to the webcam.
+ *
+ * Async response will be returned by pfnWebcamUpControl callback.
+ *
+ * @returns VBox status code.
+ * @param pInterface Pointer to the interface.
+ * @param pvUser The callers context.
+ * @param idDevice Unique id for the reported webcam assigned by the driver.
+ * @param pCtrl The control data.
+ * @param cbCtrl The size of the control data.
+ */
+ DECLR3CALLBACKMEMBER(int, pfnControl,(PPDMIWEBCAMDRV pInterface, void *pvUser, uint64_t idDevice,
+ struct VRDEVIDEOINCTRLHDR const *pCtrl, uint32_t cbCtrl));
+} PDMIWEBCAMDRV;
+/** Interface ID for PDMIWEBCAMDRV. */
+#define PDMIWEBCAMDRV_IID "0d29b9a1-f4cd-4719-a564-38d5634ba9f8"
+
+
+/** Pointer to the web camera driver/device (down) interface. */
+typedef struct PDMIWEBCAMDEV *PPDMIWEBCAMDEV;
+/**
+ * Web camera interface provided by the device(/driver) interface,
+ * i.e. facing downwards.
+ */
+typedef struct PDMIWEBCAMDEV
+{
+ /**
+ * A webcam is available.
+ *
+ * @returns VBox status code.
+ * @param pInterface Pointer to the interface.
+ * @param idDevice Unique id for the reported webcam assigned by the driver.
+ * @param pDeviceDesc The device description.
+ * @param cbDeviceDesc The size of the device description.
+ * @param uVersion The remote video input protocol version.
+ * @param fCapabilities The remote video input protocol capabilities.
+ */
+ DECLR3CALLBACKMEMBER(int, pfnAttached,(PPDMIWEBCAMDEV pInterface, uint64_t idDevice,
+ struct VRDEVIDEOINDEVICEDESC const *pDeviceDesc, uint32_t cbDeviceDesc,
+ uint32_t uVersion, uint32_t fCapabilities));
+
+ /**
+ * The webcam is not available anymore.
+ *
+ * @param pInterface Pointer to the interface.
+ * @param idDevice Unique id for the reported webcam assigned by the
+ * driver.
+ */
+ DECLR3CALLBACKMEMBER(void, pfnDetached,(PPDMIWEBCAMDEV pInterface, uint64_t idDevice));
+
+ /**
+ * There is a control response or a control change for the webcam.
+ *
+ * @param pInterface Pointer to the interface.
+ * @param fResponse True if this is a response for a previous pfnWebcamDownControl call.
+ * @param pvUser The pvUser parameter of the pfnWebcamDownControl call. Undefined if fResponse == false.
+ * @param idDevice Unique id for the reported webcam assigned by the
+ * driver.
+ * @param pCtrl The control data (defined in VRDE).
+ * @param cbCtrl The size of the control data.
+ */
+ DECLR3CALLBACKMEMBER(void, pfnControl,(PPDMIWEBCAMDEV pInterface, bool fResponse, void *pvUser,
+ uint64_t idDevice, struct VRDEVIDEOINCTRLHDR const *pCtrl, uint32_t cbCtrl));
+
+ /**
+ * A new frame.
+ *
+ * @param pInterface Pointer to the interface.
+ * @param idDevice Unique id for the reported webcam assigned by the driver.
+ * @param pHeader Payload header (defined in VRDE).
+ * @param cbHeader Size of the payload header.
+ * @param pvFrame Frame (image) data.
+ * @param cbFrame Size of the image data.
+ */
+ DECLR3CALLBACKMEMBER(void, pfnFrame,(PPDMIWEBCAMDEV pInterface, uint64_t idDevice,
+ struct VRDEVIDEOINPAYLOADHDR const *pHeader, uint32_t cbHeader,
+ const void *pvFrame, uint32_t cbFrame));
+} PDMIWEBCAMDEV;
+/** Interface ID for PDMIWEBCAMDEV. */
+#define PDMIWEBCAMDEV_IID "6ac03e3c-f56c-4a35-80af-c13ce47a9dd7"
+
+/** @} */
+
+#endif /* !VBOX_INCLUDED_vmm_pdmwebcaminfs_h */
+