MouseImpl.cpp@ 34575

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1	/* $Id: MouseImpl.cpp 34395 2010-11-26 14:33:47Z vboxsync $ */
2	/** @file
3	* VirtualBox COM class implementation
4	*/
5
6	/*
7	* Copyright (C) 2006-2008 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18	#include <iprt/cpp/utils.h>
19
20	#include "MouseImpl.h"
21	#include "DisplayImpl.h"
22	#include "VMMDev.h"
23
24	#include "AutoCaller.h"
25	#include "Logging.h"
26
27	#include <VBox/pdmdrv.h>
28	#include <VBox/VMMDev.h>
29
30	#include <iprt/asm.h>
31
32	/** @name Mouse device capabilities bitfield
33	* @{ */
34	enum
35	{
36	/** The mouse device can do relative reporting */
37	MOUSE_DEVCAP_RELATIVE = 1,
38	/** The mouse device can do absolute reporting */
39	MOUSE_DEVCAP_ABSOLUTE = 2
40	};
41	/** @} */
42
43	/**
44	* Mouse driver instance data.
45	*/
46	struct DRVMAINMOUSE
47	{
48	/** Pointer to the mouse object. */
49	Mouse *pMouse;
50	/** Pointer to the driver instance structure. */
51	PPDMDRVINS pDrvIns;
52	/** Pointer to the mouse port interface of the driver/device above us. */
53	PPDMIMOUSEPORT pUpPort;
54	/** Our mouse connector interface. */
55	PDMIMOUSECONNECTOR IConnector;
56	/** The capabilities of this device. */
57	uint32_t u32DevCaps;
58	};
59
60
61	// constructor / destructor
62	/////////////////////////////////////////////////////////////////////////////
63
64	Mouse::Mouse()
65	: mParent(NULL)
66	{
67	}
68
69	Mouse::~Mouse()
70	{
71	}
72
73
74	HRESULT Mouse::FinalConstruct()
75	{
76	RT_ZERO(mpDrv);
77	mcLastAbsX = 0x8000;
78	mcLastAbsY = 0x8000;
79	mfLastButtons = 0;
80	mfVMMDevGuestCaps = 0;
81	return S_OK;
82	}
83
84	void Mouse::FinalRelease()
85	{
86	uninit();
87	}
88
89	// public methods only for internal purposes
90	/////////////////////////////////////////////////////////////////////////////
91
92	/**
93	* Initializes the mouse object.
94	*
95	* @returns COM result indicator
96	* @param parent handle of our parent object
97	*/
98	HRESULT Mouse::init (Console *parent)
99	{
100	LogFlowThisFunc(("\n"));
101
102	ComAssertRet(parent, E_INVALIDARG);
103
104	/* Enclose the state transition NotReady->InInit->Ready */
105	AutoInitSpan autoInitSpan(this);
106	AssertReturn(autoInitSpan.isOk(), E_FAIL);
107
108	unconst(mParent) = parent;
109
110	#ifndef VBOXBFE_WITHOUT_COM
111	unconst(mEventSource).createObject();
112	HRESULT rc = mEventSource->init(static_cast<IMouse*>(this));
113	AssertComRCReturnRC(rc);
114	mMouseEvent.init(mEventSource, VBoxEventType_OnGuestMouse,
115	0, 0, 0, 0, 0);
116	#endif
117
118	/* Confirm a successful initialization */
119	autoInitSpan.setSucceeded();
120
121	return S_OK;
122	}
123
124	/**
125	* Uninitializes the instance and sets the ready flag to FALSE.
126	* Called either from FinalRelease() or by the parent when it gets destroyed.
127	*/
128	void Mouse::uninit()
129	{
130	LogFlowThisFunc(("\n"));
131
132	/* Enclose the state transition Ready->InUninit->NotReady */
133	AutoUninitSpan autoUninitSpan(this);
134	if (autoUninitSpan.uninitDone())
135	return;
136
137	for (unsigned i = 0; i < MOUSE_MAX_DEVICES; ++i)
138	{
139	if (mpDrv[i])
140	mpDrv[i]->pMouse = NULL;
141	mpDrv[i] = NULL;
142	}
143
144	#ifdef VBOXBFE_WITHOUT_COM
145	mParent = NULL;
146	#else
147	mMouseEvent.uninit();
148	unconst(mEventSource).setNull();
149	unconst(mParent) = NULL;
150	#endif
151	}
152
153
154	// IMouse properties
155	/////////////////////////////////////////////////////////////////////////////
156
157	/** Report the front-end's mouse handling capabilities to the VMM device and
158	* thus to the guest.
159	* @note all calls out of this object are made with no locks held! */
160	HRESULT Mouse::updateVMMDevMouseCaps(uint32_t fCapsAdded,
161	uint32_t fCapsRemoved)
162	{
163	VMMDev *pVMMDev = mParent->getVMMDev();
164	if (!pVMMDev)
165	return E_FAIL; /* No assertion, as the front-ends can send events
166	* at all sorts of inconvenient times. */
167	PPDMIVMMDEVPORT pVMMDevPort = pVMMDev->getVMMDevPort();
168	ComAssertRet(pVMMDevPort, E_FAIL);
169
170	int rc = pVMMDevPort->pfnUpdateMouseCapabilities(pVMMDevPort, fCapsAdded,
171	fCapsRemoved);
172	return RT_SUCCESS(rc) ? S_OK : E_FAIL;
173	}
174
175	/**
176	* Returns whether the current setup can accept absolute mouse events, either
177	* because an emulated absolute pointing device is active or because the Guest
178	* Additions are.
179	*
180	* @returns COM status code
181	* @param absoluteSupported address of result variable
182	*/
183	STDMETHODIMP Mouse::COMGETTER(AbsoluteSupported) (BOOL *absoluteSupported)
184	{
185	if (!absoluteSupported)
186	return E_POINTER;
187
188	AutoCaller autoCaller(this);
189	if (FAILED(autoCaller.rc())) return autoCaller.rc();
190
191	*absoluteSupported = supportsAbs();
192	return S_OK;
193	}
194
195	/**
196	* Returns whether the current setup can accept relative mouse events, that is,
197	* whether an emulated relative pointing device is active.
198	*
199	* @returns COM status code
200	* @param relativeSupported address of result variable
201	*/
202	STDMETHODIMP Mouse::COMGETTER(RelativeSupported) (BOOL *relativeSupported)
203	{
204	if (!relativeSupported)
205	return E_POINTER;
206
207	AutoCaller autoCaller(this);
208	if (FAILED(autoCaller.rc())) return autoCaller.rc();
209
210	*relativeSupported = supportsRel();
211	return S_OK;
212	}
213
214	/**
215	* Returns whether the guest can currently switch to drawing the mouse cursor
216	* itself if it is asked to by the front-end.
217	*
218	* @returns COM status code
219	* @param pfNeedsHostCursor address of result variable
220	*/
221	STDMETHODIMP Mouse::COMGETTER(NeedsHostCursor) (BOOL *pfNeedsHostCursor)
222	{
223	if (!pfNeedsHostCursor)
224	return E_POINTER;
225
226	AutoCaller autoCaller(this);
227	if (FAILED(autoCaller.rc())) return autoCaller.rc();
228
229	*pfNeedsHostCursor = guestNeedsHostCursor();
230	return S_OK;
231	}
232
233	// IMouse methods
234	/////////////////////////////////////////////////////////////////////////////
235
236	/** Converts a bitfield containing information about mouse buttons currently
237	* held down from the format used by the front-end to the format used by PDM
238	* and the emulated pointing devices. */
239	static uint32_t mouseButtonsToPDM(LONG buttonState)
240	{
241	uint32_t fButtons = 0;
242	if (buttonState & MouseButtonState_LeftButton)
243	fButtons \|= PDMIMOUSEPORT_BUTTON_LEFT;
244	if (buttonState & MouseButtonState_RightButton)
245	fButtons \|= PDMIMOUSEPORT_BUTTON_RIGHT;
246	if (buttonState & MouseButtonState_MiddleButton)
247	fButtons \|= PDMIMOUSEPORT_BUTTON_MIDDLE;
248	if (buttonState & MouseButtonState_XButton1)
249	fButtons \|= PDMIMOUSEPORT_BUTTON_X1;
250	if (buttonState & MouseButtonState_XButton2)
251	fButtons \|= PDMIMOUSEPORT_BUTTON_X2;
252	return fButtons;
253	}
254
255	#ifndef VBOXBFE_WITHOUT_COM
256	STDMETHODIMP Mouse::COMGETTER(EventSource)(IEventSource ** aEventSource)
257	{
258	CheckComArgOutPointerValid(aEventSource);
259
260	AutoCaller autoCaller(this);
261	if (FAILED(autoCaller.rc())) return autoCaller.rc();
262
263	// no need to lock - lifetime constant
264	mEventSource.queryInterfaceTo(aEventSource);
265
266	return S_OK;
267	}
268	#endif
269
270	/**
271	* Send a relative pointer event to the relative device we deem most
272	* appropriate.
273	*
274	* @returns COM status code
275	*/
276	HRESULT Mouse::reportRelEventToMouseDev(int32_t dx, int32_t dy, int32_t dz,
277	int32_t dw, uint32_t fButtons)
278	{
279	if (dx \|\| dy \|\| dz \|\| dw \|\| fButtons != mfLastButtons)
280	{
281	PPDMIMOUSEPORT pUpPort = NULL;
282	{
283	AutoReadLock aLock(this COMMA_LOCKVAL_SRC_POS);
284
285	for (unsigned i = 0; !pUpPort && i < MOUSE_MAX_DEVICES; ++i)
286	{
287	if (mpDrv[i] && (mpDrv[i]->u32DevCaps & MOUSE_DEVCAP_RELATIVE))
288	pUpPort = mpDrv[i]->pUpPort;
289	}
290	}
291	if (!pUpPort)
292	return S_OK;
293
294	int vrc = pUpPort->pfnPutEvent(pUpPort, dx, dy, dz, dw, fButtons);
295
296	if (RT_FAILURE(vrc))
297	return setError(VBOX_E_IPRT_ERROR,
298	tr("Could not send the mouse event to the virtual mouse (%Rrc)"),
299	vrc);
300	mfLastButtons = fButtons;
301	}
302	return S_OK;
303	}
304
305
306	/**
307	* Send an absolute pointer event to the emulated absolute device we deem most
308	* appropriate.
309	*
310	* @returns COM status code
311	*/
312	HRESULT Mouse::reportAbsEventToMouseDev(uint32_t mouseXAbs, uint32_t mouseYAbs,
313	int32_t dz, int32_t dw, uint32_t fButtons)
314	{
315	if ( mouseXAbs != mcLastAbsX \|\| mouseYAbs != mcLastAbsY
316	\|\| dz \|\| dw \|\| fButtons != mfLastButtons)
317	{
318	PPDMIMOUSEPORT pUpPort = NULL;
319	{
320	AutoReadLock aLock(this COMMA_LOCKVAL_SRC_POS);
321
322	for (unsigned i = 0; !pUpPort && i < MOUSE_MAX_DEVICES; ++i)
323	{
324	if (mpDrv[i] && (mpDrv[i]->u32DevCaps & MOUSE_DEVCAP_ABSOLUTE))
325	pUpPort = mpDrv[i]->pUpPort;
326	}
327	}
328	if (!pUpPort)
329	return S_OK;
330
331	int vrc = pUpPort->pfnPutEventAbs(pUpPort, mouseXAbs, mouseYAbs, dz,
332	dw, fButtons);
333	if (RT_FAILURE(vrc))
334	return setError(VBOX_E_IPRT_ERROR,
335	tr("Could not send the mouse event to the virtual mouse (%Rrc)"),
336	vrc);
337	mfLastButtons = fButtons;
338
339	}
340	return S_OK;
341	}
342
343
344	/**
345	* Send an absolute position event to the VMM device.
346	* @note all calls out of this object are made with no locks held!
347	*
348	* @returns COM status code
349	*/
350	HRESULT Mouse::reportAbsEventToVMMDev(uint32_t mouseXAbs, uint32_t mouseYAbs)
351	{
352	VMMDev *pVMMDev = mParent->getVMMDev();
353	ComAssertRet(pVMMDev, E_FAIL);
354	PPDMIVMMDEVPORT pVMMDevPort = pVMMDev->getVMMDevPort();
355	ComAssertRet(pVMMDevPort, E_FAIL);
356
357	if (mouseXAbs != mcLastAbsX \|\| mouseYAbs != mcLastAbsY)
358	{
359	int vrc = pVMMDevPort->pfnSetAbsoluteMouse(pVMMDevPort,
360	mouseXAbs, mouseYAbs);
361	if (RT_FAILURE(vrc))
362	return setError(VBOX_E_IPRT_ERROR,
363	tr("Could not send the mouse event to the virtual mouse (%Rrc)"),
364	vrc);
365	}
366	return S_OK;
367	}
368
369
370	/**
371	* Send an absolute pointer event to a pointing device (the VMM device if
372	* possible or whatever emulated absolute device seems best to us if not).
373	*
374	* @returns COM status code
375	*/
376	HRESULT Mouse::reportAbsEvent(uint32_t mouseXAbs, uint32_t mouseYAbs,
377	int32_t dz, int32_t dw, uint32_t fButtons,
378	bool fUsesVMMDevEvent)
379	{
380	HRESULT rc;
381	/** If we are using the VMMDev to report absolute position but without
382	* VMMDev IRQ support then we need to send a small "jiggle" to the emulated
383	* relative mouse device to alert the guest to changes. */
384	LONG cJiggle = 0;
385
386	if (vmmdevCanAbs())
387	{
388	/*
389	* Send the absolute mouse position to the VMM device.
390	*/
391	if (mouseXAbs != mcLastAbsX \|\| mouseYAbs != mcLastAbsY)
392	{
393	rc = reportAbsEventToVMMDev(mouseXAbs, mouseYAbs);
394	cJiggle = !fUsesVMMDevEvent;
395	}
396	rc = reportRelEventToMouseDev(cJiggle, 0, dz, dw, fButtons);
397	}
398	else
399	rc = reportAbsEventToMouseDev(mouseXAbs, mouseYAbs, dz, dw, fButtons);
400
401	mcLastAbsX = mouseXAbs;
402	mcLastAbsY = mouseYAbs;
403	return rc;
404	}
405
406	/**
407	* Send a relative mouse event to the guest.
408	* @note the VMMDev capability change is so that the guest knows we are sending
409	* real events over the PS/2 device and not dummy events to signal the
410	* arrival of new absolute pointer data
411	*
412	* @returns COM status code
413	* @param dx X movement
414	* @param dy Y movement
415	* @param dz Z movement
416	* @param buttonState The mouse button state
417	*/
418	STDMETHODIMP Mouse::PutMouseEvent(LONG dx, LONG dy, LONG dz, LONG dw, LONG buttonState)
419	{
420	HRESULT rc;
421	uint32_t fButtons;
422
423	AutoCaller autoCaller(this);
424	if (FAILED(autoCaller.rc())) return autoCaller.rc();
425	LogRel3(("%s: dx=%d, dy=%d, dz=%d, dw=%d\n", __PRETTY_FUNCTION__,
426	dx, dy, dz, dw));
427
428	fButtons = mouseButtonsToPDM(buttonState);
429	/* Make sure that the guest knows that we are sending real movement
430	* events to the PS/2 device and not just dummy wake-up ones. */
431	updateVMMDevMouseCaps(0, VMMDEV_MOUSE_HOST_WANTS_ABSOLUTE);
432	rc = reportRelEventToMouseDev(dx, dy, dz, dw, fButtons);
433
434	#ifndef VBOXBFE_WITHOUT_COM
435	mMouseEvent.reinit(VBoxEventType_OnGuestMouse, false, dx, dy, dz, dw, fButtons);
436	mMouseEvent.fire(0);
437	#endif
438
439	return rc;
440	}
441
442	/**
443	* Convert an (X, Y) value pair in screen co-ordinates (starting from 1) to a
444	* value from 0 to 0xffff.
445	*
446	* @returns COM status value
447	*/
448	HRESULT Mouse::convertDisplayRes(LONG x, LONG y, uint32_t pcX, uint32_t pcY)
449	{
450	AssertPtrReturn(pcX, E_POINTER);
451	AssertPtrReturn(pcY, E_POINTER);
452	Display *pDisplay = mParent->getDisplay();
453	ComAssertRet(pDisplay, E_FAIL);
454
455	ULONG displayWidth, displayHeight;
456	/* Takes the display lock */
457	HRESULT rc = pDisplay->GetScreenResolution (0, &displayWidth, &displayHeight,
458	NULL);
459	if (FAILED(rc))
460	return rc;
461
462	pcX = displayWidth ? ((x - 1) 0xFFFF) / displayWidth: 0;
463	pcY = displayHeight ? ((y - 1) 0xFFFF) / displayHeight: 0;
464	return S_OK;
465	}
466
467
468	/**
469	* Send an absolute mouse event to the VM. This requires either VirtualBox-
470	* specific drivers installed in the guest or absolute pointing device
471	* emulation.
472	* @note the VMMDev capability change is so that the guest knows we are sending
473	* dummy events over the PS/2 device to signal the arrival of new
474	* absolute pointer data, and not pointer real movement data
475	* @note all calls out of this object are made with no locks held!
476	*
477	* @returns COM status code
478	* @param x X position (pixel), starting from 1
479	* @param y Y position (pixel), starting from 1
480	* @param dz Z movement
481	* @param buttonState The mouse button state
482	*/
483	STDMETHODIMP Mouse::PutMouseEventAbsolute(LONG x, LONG y, LONG dz, LONG dw,
484	LONG buttonState)
485	{
486	AutoCaller autoCaller(this);
487	if (FAILED(autoCaller.rc())) return autoCaller.rc();
488
489	LogRel3(("%s: x=%d, y=%d, dz=%d, dw=%d, buttonState=0x%x\n",
490	__PRETTY_FUNCTION__, x, y, dz, dw, buttonState));
491
492	uint32_t mouseXAbs, mouseYAbs, fButtons;
493
494	/** @todo the front end should do this conversion to avoid races */
495	/** @note Or maybe not... races are pretty inherent in everything done in
496	* this object and not really bad as far as I can see. */
497	HRESULT rc = convertDisplayRes(x, y, &mouseXAbs, &mouseYAbs);
498	if (FAILED(rc)) return rc;
499
500	/** @todo multi-monitor Windows guests expect this to be unbounded.
501	* Understand the issues involved and fix for the rest. */
502	/* if (mouseXAbs > 0xffff)
503	mouseXAbs = mcLastAbsX;
504	if (mouseYAbs > 0xffff)
505	mouseYAbs = mcLastAbsY; */
506
507	fButtons = mouseButtonsToPDM(buttonState);
508	/* If we are doing old-style (IRQ-less) absolute reporting to the VMM
509	* device then make sure the guest is aware of it, so that it knows to
510	* ignore relative movement on the PS/2 device. */
511	updateVMMDevMouseCaps(VMMDEV_MOUSE_HOST_WANTS_ABSOLUTE, 0);
512	rc = reportAbsEvent(mouseXAbs, mouseYAbs, dz, dw, fButtons,
513	RT_BOOL( mfVMMDevGuestCaps
514	& VMMDEV_MOUSE_GUEST_USES_EVENT));
515
516	#ifndef VBOXBFE_WITHOUT_COM
517	mMouseEvent.reinit(VBoxEventType_OnGuestMouse, true, x, y, dz, dw, fButtons);
518	mMouseEvent.fire(0);
519	#endif
520
521	return rc;
522	}
523
524	// private methods
525	/////////////////////////////////////////////////////////////////////////////
526
527
528	/** Does the guest currently rely on the host to draw the mouse cursor or
529	* can it switch to doing it itself in software? */
530	bool Mouse::guestNeedsHostCursor(void)
531	{
532	return RT_BOOL(mfVMMDevGuestCaps & VMMDEV_MOUSE_GUEST_NEEDS_HOST_CURSOR);
533	}
534
535
536	/** Check what sort of reporting can be done using the devices currently
537	* enabled. Does not consider the VMM device. */
538	void Mouse::getDeviceCaps(bool pfAbs, bool pfRel)
539	{
540	bool fAbsDev = false;
541	bool fRelDev = false;
542
543	AutoReadLock aLock(this COMMA_LOCKVAL_SRC_POS);
544
545	for (unsigned i = 0; i < MOUSE_MAX_DEVICES; ++i)
546	if (mpDrv[i])
547	{
548	if (mpDrv[i]->u32DevCaps & MOUSE_DEVCAP_ABSOLUTE)
549	fAbsDev = true;
550	if (mpDrv[i]->u32DevCaps & MOUSE_DEVCAP_RELATIVE)
551	fRelDev = true;
552	}
553	if (pfAbs)
554	*pfAbs = fAbsDev;
555	if (pfRel)
556	*pfRel = fRelDev;
557	}
558
559
560	/** Does the VMM device currently support absolute reporting? */
561	bool Mouse::vmmdevCanAbs(void)
562	{
563	bool fRelDev;
564
565	getDeviceCaps(NULL, &fRelDev);
566	return (mfVMMDevGuestCaps & VMMDEV_MOUSE_GUEST_CAN_ABSOLUTE)
567	&& fRelDev;
568	}
569
570
571	/** Does the VMM device currently support absolute reporting? */
572	bool Mouse::deviceCanAbs(void)
573	{
574	bool fAbsDev;
575
576	getDeviceCaps(&fAbsDev, NULL);
577	return fAbsDev;
578	}
579
580
581	/** Can we currently send relative events to the guest? */
582	bool Mouse::supportsRel(void)
583	{
584	bool fRelDev;
585
586	getDeviceCaps(NULL, &fRelDev);
587	return fRelDev;
588	}
589
590
591	/** Can we currently send absolute events to the guest? */
592	bool Mouse::supportsAbs(void)
593	{
594	bool fAbsDev;
595
596	getDeviceCaps(&fAbsDev, NULL);
597	return fAbsDev \|\| vmmdevCanAbs();
598	}
599
600
601	/** Check what sort of reporting can be done using the devices currently
602	* enabled (including the VMM device) and notify the guest and the front-end.
603	*/
604	void Mouse::sendMouseCapsNotifications(void)
605	{
606	bool fAbsDev, fRelDev, fCanAbs, fNeedsHostCursor;
607
608	{
609	AutoReadLock aLock(this COMMA_LOCKVAL_SRC_POS);
610
611	getDeviceCaps(&fAbsDev, &fRelDev);
612	fCanAbs = supportsAbs();
613	fNeedsHostCursor = guestNeedsHostCursor();
614	}
615	if (fAbsDev)
616	updateVMMDevMouseCaps(VMMDEV_MOUSE_HOST_HAS_ABS_DEV, 0);
617	else
618	updateVMMDevMouseCaps(0, VMMDEV_MOUSE_HOST_HAS_ABS_DEV);
619	/** @todo this call takes the Console lock in order to update the cached
620	* callback data atomically. However I can't see any sign that the cached
621	* data is ever used again. */
622	mParent->onMouseCapabilityChange(fCanAbs, fRelDev, fNeedsHostCursor);
623	}
624
625
626	/**
627	* @interface_method_impl{PDMIMOUSECONNECTOR,pfnReportModes}
628	* A virtual device is notifying us about its current state and capabilities
629	*/
630	DECLCALLBACK(void) Mouse::mouseReportModes(PPDMIMOUSECONNECTOR pInterface, bool fRel, bool fAbs)
631	{
632	PDRVMAINMOUSE pDrv = RT_FROM_MEMBER(pInterface, DRVMAINMOUSE, IConnector);
633	if (fRel)
634	pDrv->u32DevCaps \|= MOUSE_DEVCAP_RELATIVE;
635	else
636	pDrv->u32DevCaps &= ~MOUSE_DEVCAP_RELATIVE;
637	if (fAbs)
638	pDrv->u32DevCaps \|= MOUSE_DEVCAP_ABSOLUTE;
639	else
640	pDrv->u32DevCaps &= ~MOUSE_DEVCAP_ABSOLUTE;
641
642	pDrv->pMouse->sendMouseCapsNotifications();
643	}
644
645
646	/**
647	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
648	*/
649	DECLCALLBACK(void ) Mouse::drvQueryInterface(PPDMIBASE pInterface, const char pszIID)
650	{
651	PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
652	PDRVMAINMOUSE pDrv = PDMINS_2_DATA(pDrvIns, PDRVMAINMOUSE);
653
654	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
655	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIMOUSECONNECTOR, &pDrv->IConnector);
656	return NULL;
657	}
658
659
660	/**
661	* Destruct a mouse driver instance.
662	*
663	* @returns VBox status.
664	* @param pDrvIns The driver instance data.
665	*/
666	DECLCALLBACK(void) Mouse::drvDestruct(PPDMDRVINS pDrvIns)
667	{
668	PDRVMAINMOUSE pData = PDMINS_2_DATA(pDrvIns, PDRVMAINMOUSE);
669	LogFlow(("Mouse::drvDestruct: iInstance=%d\n", pDrvIns->iInstance));
670	PDMDRV_CHECK_VERSIONS_RETURN_VOID(pDrvIns);
671
672	if (pData->pMouse)
673	{
674	AutoWriteLock mouseLock(pData->pMouse COMMA_LOCKVAL_SRC_POS);
675	for (unsigned cDev = 0; cDev < MOUSE_MAX_DEVICES; ++cDev)
676	if (pData->pMouse->mpDrv[cDev] == pData)
677	{
678	pData->pMouse->mpDrv[cDev] = NULL;
679	break;
680	}
681	}
682	}
683
684
685	/**
686	* Construct a mouse driver instance.
687	*
688	* @copydoc FNPDMDRVCONSTRUCT
689	*/
690	DECLCALLBACK(int) Mouse::drvConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
691	{
692	PDRVMAINMOUSE pData = PDMINS_2_DATA(pDrvIns, PDRVMAINMOUSE);
693	LogFlow(("drvMainMouse_Construct: iInstance=%d\n", pDrvIns->iInstance));
694	PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns);
695
696	/*
697	* Validate configuration.
698	*/
699	if (!CFGMR3AreValuesValid(pCfg, "Object\0"))
700	return VERR_PDM_DRVINS_UNKNOWN_CFG_VALUES;
701	AssertMsgReturn(PDMDrvHlpNoAttach(pDrvIns) == VERR_PDM_NO_ATTACHED_DRIVER,
702	("Configuration error: Not possible to attach anything to this driver!\n"),
703	VERR_PDM_DRVINS_NO_ATTACH);
704
705	/*
706	* IBase.
707	*/
708	pDrvIns->IBase.pfnQueryInterface = Mouse::drvQueryInterface;
709
710	pData->IConnector.pfnReportModes = Mouse::mouseReportModes;
711
712	/*
713	* Get the IMousePort interface of the above driver/device.
714	*/
715	pData->pUpPort = (PPDMIMOUSEPORT)pDrvIns->pUpBase->pfnQueryInterface(pDrvIns->pUpBase, PDMIMOUSEPORT_IID);
716	if (!pData->pUpPort)
717	{
718	AssertMsgFailed(("Configuration error: No mouse port interface above!\n"));
719	return VERR_PDM_MISSING_INTERFACE_ABOVE;
720	}
721
722	/*
723	* Get the Mouse object pointer and update the mpDrv member.
724	*/
725	void *pv;
726	int rc = CFGMR3QueryPtr(pCfg, "Object", &pv);
727	if (RT_FAILURE(rc))
728	{
729	AssertMsgFailed(("Configuration error: No/bad \"Object\" value! rc=%Rrc\n", rc));
730	return rc;
731	}
732	pData->pMouse = (Mouse )pv; /* @todo Check this cast! */
733	unsigned cDev;
734	{
735	AutoReadLock mouseLock(pData->pMouse COMMA_LOCKVAL_SRC_POS);
736
737	for (cDev = 0; cDev < MOUSE_MAX_DEVICES; ++cDev)
738	if (!pData->pMouse->mpDrv[cDev])
739	{
740	pData->pMouse->mpDrv[cDev] = pData;
741	break;
742	}
743	}
744	if (cDev == MOUSE_MAX_DEVICES)
745	return VERR_NO_MORE_HANDLES;
746
747	return VINF_SUCCESS;
748	}
749
750
751	/**
752	* Main mouse driver registration record.
753	*/
754	const PDMDRVREG Mouse::DrvReg =
755	{
756	/* u32Version */
757	PDM_DRVREG_VERSION,
758	/* szName */
759	"MainMouse",
760	/* szRCMod */
761	"",
762	/* szR0Mod */
763	"",
764	/* pszDescription */
765	"Main mouse driver (Main as in the API).",
766	/* fFlags */
767	PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
768	/* fClass. */
769	PDM_DRVREG_CLASS_MOUSE,
770	/* cMaxInstances */
771	~0,
772	/* cbInstance */
773	sizeof(DRVMAINMOUSE),
774	/* pfnConstruct */
775	Mouse::drvConstruct,
776	/* pfnDestruct */
777	Mouse::drvDestruct,
778	/* pfnRelocate */
779	NULL,
780	/* pfnIOCtl */
781	NULL,
782	/* pfnPowerOn */
783	NULL,
784	/* pfnReset */
785	NULL,
786	/* pfnSuspend */
787	NULL,
788	/* pfnResume */
789	NULL,
790	/* pfnAttach */
791	NULL,
792	/* pfnDetach */
793	NULL,
794	/* pfnPowerOff */
795	NULL,
796	/* pfnSoftReset */
797	NULL,
798	/* u32EndVersion */
799	PDM_DRVREG_VERSION
800	};
801	/* vi: set tabstop=4 shiftwidth=4 expandtab: */

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source: vbox/trunk/src/VBox/Main/MouseImpl.cpp@ 34575

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