| 1 | /* $Id: pdmwebcaminfs.h 98103 2023-01-17 14:15:46Z vboxsync $ */
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| 2 | /** @file
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| 3 | * webcaminfs - interfaces between dev and driver.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2011-2023 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * The contents of this file may alternatively be used under the terms
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| 26 | * of the Common Development and Distribution License Version 1.0
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| 27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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| 28 | * in the VirtualBox distribution, in which case the provisions of the
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| 29 | * CDDL are applicable instead of those of the GPL.
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| 30 | *
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| 31 | * You may elect to license modified versions of this file under the
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| 32 | * terms and conditions of either the GPL or the CDDL or both.
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| 33 | *
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| 34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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| 35 | */
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| 36 |
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| 37 | #ifndef VBOX_INCLUDED_vmm_pdmwebcaminfs_h
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| 38 | #define VBOX_INCLUDED_vmm_pdmwebcaminfs_h
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| 39 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 40 | # pragma once
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| 41 | #endif
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| 42 |
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| 43 | #include <VBox/types.h>
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| 44 |
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| 45 | struct VRDEVIDEOINDEVICEDESC;
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| 46 | struct VRDEVIDEOINPAYLOADHDR;
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| 47 | struct VRDEVIDEOINCTRLHDR;
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| 48 |
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| 49 |
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| 50 | /** @defgroup grp_pdm_ifs_webcam PDM Web Camera Interfaces
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| 51 | * @ingroup grp_pdm_interfaces
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| 52 | * @{
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| 53 | */
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| 54 |
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| 55 | /** Pointer to the web camera driver (up) interface. */
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| 56 | typedef struct PDMIWEBCAMDRV *PPDMIWEBCAMDRV;
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| 57 | /**
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| 58 | * Web camera interface driver provided by the driver to the device,
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| 59 | * i.e. facing upwards.
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| 60 | */
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| 61 | typedef struct PDMIWEBCAMDRV
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| 62 | {
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| 63 | /**
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| 64 | * The PDM device is ready to get webcam notifications.
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| 65 | *
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| 66 | * @param pInterface Pointer to the interface.
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| 67 | * @param fReady Whether the device is ready.
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| 68 | */
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| 69 | DECLR3CALLBACKMEMBER(void, pfnReady,(PPDMIWEBCAMDRV pInterface, bool fReady));
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| 70 |
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| 71 | /**
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| 72 | * Send a control request to the webcam.
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| 73 | *
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| 74 | * Async response will be returned by pfnWebcamUpControl callback.
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| 75 | *
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| 76 | * @returns VBox status code.
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| 77 | * @param pInterface Pointer to the interface.
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| 78 | * @param pvUser The callers context.
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| 79 | * @param idDevice Unique id for the reported webcam assigned by the driver.
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| 80 | * @param pCtrl The control data.
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| 81 | * @param cbCtrl The size of the control data.
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| 82 | */
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| 83 | DECLR3CALLBACKMEMBER(int, pfnControl,(PPDMIWEBCAMDRV pInterface, void *pvUser, uint64_t idDevice,
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| 84 | struct VRDEVIDEOINCTRLHDR const *pCtrl, uint32_t cbCtrl));
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| 85 | } PDMIWEBCAMDRV;
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| 86 | /** Interface ID for PDMIWEBCAMDRV. */
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| 87 | #define PDMIWEBCAMDRV_IID "0d29b9a1-f4cd-4719-a564-38d5634ba9f8"
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| 88 |
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| 89 |
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| 90 | /** Pointer to the web camera driver/device (down) interface. */
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| 91 | typedef struct PDMIWEBCAMDEV *PPDMIWEBCAMDEV;
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| 92 | /**
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| 93 | * Web camera interface provided by the device(/driver) interface,
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| 94 | * i.e. facing downwards.
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| 95 | */
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| 96 | typedef struct PDMIWEBCAMDEV
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| 97 | {
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| 98 | /**
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| 99 | * A webcam is available.
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| 100 | *
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| 101 | * @returns VBox status code.
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| 102 | * @param pInterface Pointer to the interface.
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| 103 | * @param idDevice Unique id for the reported webcam assigned by the driver.
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| 104 | * @param pDeviceDesc The device description.
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| 105 | * @param cbDeviceDesc The size of the device description.
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| 106 | * @param uVersion The remote video input protocol version.
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| 107 | * @param fCapabilities The remote video input protocol capabilities.
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| 108 | */
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| 109 | DECLR3CALLBACKMEMBER(int, pfnAttached,(PPDMIWEBCAMDEV pInterface, uint64_t idDevice,
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| 110 | struct VRDEVIDEOINDEVICEDESC const *pDeviceDesc, uint32_t cbDeviceDesc,
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| 111 | uint32_t uVersion, uint32_t fCapabilities));
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| 112 |
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| 113 | /**
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| 114 | * The webcam is not available anymore.
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| 115 | *
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| 116 | * @param pInterface Pointer to the interface.
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| 117 | * @param idDevice Unique id for the reported webcam assigned by the
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| 118 | * driver.
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| 119 | */
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| 120 | DECLR3CALLBACKMEMBER(void, pfnDetached,(PPDMIWEBCAMDEV pInterface, uint64_t idDevice));
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| 121 |
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| 122 | /**
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| 123 | * There is a control response or a control change for the webcam.
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| 124 | *
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| 125 | * @param pInterface Pointer to the interface.
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| 126 | * @param fResponse True if this is a response for a previous pfnWebcamDownControl call.
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| 127 | * @param pvUser The pvUser parameter of the pfnWebcamDownControl call. Undefined if fResponse == false.
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| 128 | * @param idDevice Unique id for the reported webcam assigned by the
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| 129 | * driver.
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| 130 | * @param pCtrl The control data (defined in VRDE).
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| 131 | * @param cbCtrl The size of the control data.
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| 132 | */
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| 133 | DECLR3CALLBACKMEMBER(void, pfnControl,(PPDMIWEBCAMDEV pInterface, bool fResponse, void *pvUser,
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| 134 | uint64_t idDevice, struct VRDEVIDEOINCTRLHDR const *pCtrl, uint32_t cbCtrl));
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| 135 |
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| 136 | /**
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| 137 | * A new frame.
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| 138 | *
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| 139 | * @param pInterface Pointer to the interface.
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| 140 | * @param idDevice Unique id for the reported webcam assigned by the driver.
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| 141 | * @param pHeader Payload header (defined in VRDE).
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| 142 | * @param cbHeader Size of the payload header.
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| 143 | * @param pvFrame Frame (image) data.
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| 144 | * @param cbFrame Size of the image data.
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| 145 | */
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| 146 | DECLR3CALLBACKMEMBER(void, pfnFrame,(PPDMIWEBCAMDEV pInterface, uint64_t idDevice,
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| 147 | struct VRDEVIDEOINPAYLOADHDR const *pHeader, uint32_t cbHeader,
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| 148 | const void *pvFrame, uint32_t cbFrame));
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| 149 | } PDMIWEBCAMDEV;
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| 150 | /** Interface ID for PDMIWEBCAMDEV. */
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| 151 | #define PDMIWEBCAMDEV_IID "6ac03e3c-f56c-4a35-80af-c13ce47a9dd7"
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| 152 |
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| 153 | /** @} */
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| 154 |
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| 155 | #endif /* !VBOX_INCLUDED_vmm_pdmwebcaminfs_h */
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| 156 |
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