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/* $Id: VBoxGuestR0LibMouse.cpp $ */
/** @file
* VBoxGuestLibR0 - Mouse Integration.
*/
/*
* Copyright (C) 2012-2023 Oracle and/or its affiliates.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include "VBoxGuestR0LibInternal.h"
#ifdef VBGL_VBOXGUEST
# error "This file shouldn't be part of the VBoxGuestR0LibBase library that is linked into VBoxGuest. It's client code."
#endif
/**
* Sets the function which is called back on each mouse pointer event. Only
* one callback can be active at once, so if you need several for any reason
* you must multiplex yourself. Call backs can be disabled by passing NULL
* as the function pointer.
*
* @remarks Ring-0.
* @returns iprt status code.
* @returns VERR_TRY_AGAIN if the main guest driver hasn't finished
* initialising.
*
* @param pfnNotify the function to call back. NULL to disable call backs.
* @param pvUser user supplied data/cookie to be passed to the function.
*/
DECLR0VBGL(int) VbglR0SetMouseNotifyCallback(PFNVBOXGUESTMOUSENOTIFY pfnNotify, void *pvUser)
{
PVBGLIDCHANDLE pIdcHandle;
int rc = vbglR0QueryIdcHandle(&pIdcHandle);
if (RT_SUCCESS(rc))
{
VBGLIOCSETMOUSENOTIFYCALLBACK NotifyCallback;
VBGLREQHDR_INIT(&NotifyCallback.Hdr, SET_MOUSE_NOTIFY_CALLBACK);
NotifyCallback.u.In.pfnNotify = pfnNotify;
NotifyCallback.u.In.pvUser = pvUser;
rc = VbglR0IdcCall(pIdcHandle, VBGL_IOCTL_SET_MOUSE_NOTIFY_CALLBACK, &NotifyCallback.Hdr, sizeof(NotifyCallback));
}
return rc;
}
/**
* Retrieve mouse coordinates and features from the host.
*
* @remarks Ring-0.
* @returns VBox status code.
*
* @param pfFeatures Where to store the mouse features.
* @param px Where to store the X co-ordinate.
* @param py Where to store the Y co-ordinate.
*/
DECLR0VBGL(int) VbglR0GetMouseStatus(uint32_t *pfFeatures, uint32_t *px, uint32_t *py)
{
PVBGLIDCHANDLE pIdcHandle;
int rc = vbglR0QueryIdcHandle(&pIdcHandle);
if (RT_SUCCESS(rc))
{
VMMDevReqMouseStatus Req;
VMMDEV_REQ_HDR_INIT(&Req.header, sizeof(Req), VMMDevReq_GetMouseStatus);
Req.mouseFeatures = 0;
Req.pointerXPos = 0;
Req.pointerYPos = 0;
rc = VbglR0IdcCall(pIdcHandle, VBGL_IOCTL_VMMDEV_REQUEST(sizeof(Req)), (PVBGLREQHDR)&Req.header, sizeof(Req));
if (RT_SUCCESS(rc))
{
if (pfFeatures)
*pfFeatures = Req.mouseFeatures;
if (px)
*px = Req.pointerXPos;
if (py)
*py = Req.pointerYPos;
}
}
return rc;
}
/**
* Send mouse features to the host.
*
* @remarks Ring-0.
* @returns VBox status code.
*
* @param fFeatures Supported mouse pointer features. The main guest driver
* will mediate different callers and show the host any
* feature enabled by any guest caller.
*/
DECLR0VBGL(int) VbglR0SetMouseStatus(uint32_t fFeatures)
{
PVBGLIDCHANDLE pIdcHandle;
int rc = vbglR0QueryIdcHandle(&pIdcHandle);
if (RT_SUCCESS(rc))
{
VBGLIOCSETMOUSESTATUS Req;
VBGLREQHDR_INIT(&Req.Hdr, SET_MOUSE_STATUS);
Req.u.In.fStatus = fFeatures;
rc = VbglR0IdcCall(pIdcHandle, VBGL_IOCTL_SET_MOUSE_STATUS, &Req.Hdr, sizeof(Req));
}
return rc;
}
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