| 1 | /* $Id: Mouse.cpp 56294 2015-06-09 14:26:20Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VBoxGuestLibR0 - Mouse Integration.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2012-2015 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 | #include "VBGLInternal.h"
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| 28 |
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| 29 | /**
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| 30 | * Sets the function which is called back on each mouse pointer event. Only
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| 31 | * one callback can be active at once, so if you need several for any reason
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| 32 | * you must multiplex yourself. Call backs can be disabled by passing NULL
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| 33 | * as the function pointer.
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| 34 | *
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| 35 | * @remarks Ring-0.
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| 36 | * @returns iprt status code.
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| 37 | * @returns VERR_TRY_AGAIN if the main guest driver hasn't finished
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| 38 | * initialising.
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| 39 | *
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| 40 | * @param pfnNotify the function to call back. NULL to disable call backs.
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| 41 | * @param pvUser user supplied data/cookie to be passed to the function.
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| 42 | */
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| 43 | DECLVBGL(int) VbglSetMouseNotifyCallback(PFNVBOXGUESTMOUSENOTIFY pfnNotify,
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| 44 | void *pvUser)
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| 45 | {
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| 46 | VBoxGuestMouseSetNotifyCallback NotifyCallback;
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| 47 | VBGLDRIVER *pDriver;
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| 48 | int rc = vbglGetDriver(&pDriver);
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| 49 | if (RT_FAILURE(rc))
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| 50 | return rc;
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| 51 | NotifyCallback.pfnNotify = pfnNotify;
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| 52 | NotifyCallback.pvUser = pvUser;
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| 53 | return vbglDriverIOCtl(pDriver, VBOXGUEST_IOCTL_SET_MOUSE_NOTIFY_CALLBACK,
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| 54 | &NotifyCallback, sizeof(NotifyCallback));
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| 55 | }
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| 56 |
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| 57 | /**
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| 58 | * Retrieve mouse coordinates and features from the host.
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| 59 | *
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| 60 | * @remarks Ring-0.
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| 61 | * @returns VBox status code.
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| 62 | *
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| 63 | * @param pfFeatures Where to store the mouse features.
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| 64 | * @param px Where to store the X co-ordinate.
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| 65 | * @param py Where to store the Y co-ordinate.
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| 66 | */
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| 67 | DECLVBGL(int) VbglGetMouseStatus(uint32_t *pfFeatures, uint32_t *px,
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| 68 | uint32_t *py)
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| 69 | {
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| 70 | VMMDevReqMouseStatus Req;
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| 71 | VBGLDRIVER *pDriver;
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| 72 | int rc;
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| 73 |
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| 74 | rc = vbglGetDriver(&pDriver);
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| 75 | if (RT_FAILURE(rc))
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| 76 | return rc;
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| 77 | vmmdevInitRequest(&Req.header, VMMDevReq_GetMouseStatus);
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| 78 | Req.mouseFeatures = 0;
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| 79 | Req.pointerXPos = 0;
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| 80 | Req.pointerYPos = 0;
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| 81 | rc = vbglDriverIOCtl(pDriver, VBOXGUEST_IOCTL_VMMREQUEST(sizeof(Req)),
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| 82 | &Req.header, sizeof(Req));
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| 83 | if (RT_FAILURE(rc))
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| 84 | return rc;
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| 85 | if (RT_FAILURE(Req.header.rc))
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| 86 | return Req.header.rc;
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| 87 | if (pfFeatures)
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| 88 | *pfFeatures = Req.mouseFeatures;
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| 89 | if (px)
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| 90 | *px = Req.pointerXPos;
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| 91 | if (py)
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| 92 | *py = Req.pointerYPos;
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| 93 | return VINF_SUCCESS;
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| 94 | }
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| 95 |
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| 96 | /**
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| 97 | * Send mouse features to the host.
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| 98 | *
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| 99 | * @remarks Ring-0.
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| 100 | * @returns VBox status code.
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| 101 | *
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| 102 | * @param fFeatures Supported mouse pointer features. The main guest driver
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| 103 | * will mediate different callers and show the host any
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| 104 | * feature enabled by any guest caller.
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| 105 | */
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| 106 | DECLVBGL(int) VbglSetMouseStatus(uint32_t fFeatures)
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| 107 | {
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| 108 | VBGLDRIVER *pDriver;
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| 109 | int rc;
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| 110 |
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| 111 | rc = vbglGetDriver(&pDriver);
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| 112 | if (RT_FAILURE(rc))
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| 113 | return rc;
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| 114 | return vbglDriverIOCtl(pDriver, VBOXGUEST_IOCTL_SET_MOUSE_STATUS,
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| 115 | &fFeatures, sizeof(fFeatures));
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| 116 | }
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