MouseImpl.cpp@ 33517

Last change on this file since 33517 was 33321, checked in by vboxsync, 14 years ago
Main. VBoxShell: demo recorder fully functional
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 23.9 KB

Line
1	/* $Id: MouseImpl.cpp 33321 2010-10-21 17:14:03Z 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
29	#include <iprt/asm.h>
30
31	#include <VBox/VMMDev.h>
32
33	/** @name Mouse device capabilities bitfield
34	* @{ */
35	enum
36	{
37	/** The mouse device can do relative reporting */
38	MOUSE_DEVCAP_RELATIVE = 1,
39	/** The mouse device can do absolute reporting */
40	MOUSE_DEVCAP_ABSOLUTE = 2
41	};
42	/** @} */
43
44	/**
45	* Mouse driver instance data.
46	*/
47	struct DRVMAINMOUSE
48	{
49	/** Pointer to the mouse object. */
50	Mouse *pMouse;
51	/** Pointer to the driver instance structure. */
52	PPDMDRVINS pDrvIns;
53	/** Pointer to the mouse port interface of the driver/device above us. */
54	PPDMIMOUSEPORT pUpPort;
55	/** Our mouse connector interface. */
56	PDMIMOUSECONNECTOR IConnector;
57	/** The capabilities of this device. */
58	uint32_t u32DevCaps;
59	};
60
61
62	// constructor / destructor
63	/////////////////////////////////////////////////////////////////////////////
64
65	Mouse::Mouse()
66	: mParent(NULL)
67	{
68	}
69
70	Mouse::~Mouse()
71	{
72	}
73
74
75	HRESULT Mouse::FinalConstruct()
76	{
77	RT_ZERO(mpDrv);
78	mfVMMDevCanAbs = false;
79	mfVMMDevNeedsHostCursor = false;
80	mLastAbsX = 0x8000;
81	mLastAbsY = 0x8000;
82	mLastButtons = 0;
83	return S_OK;
84	}
85
86	void Mouse::FinalRelease()
87	{
88	uninit();
89	}
90
91	// public methods only for internal purposes
92	/////////////////////////////////////////////////////////////////////////////
93
94	/**
95	* Initializes the mouse object.
96	*
97	* @returns COM result indicator
98	* @param parent handle of our parent object
99	*/
100	HRESULT Mouse::init (Console *parent)
101	{
102	LogFlowThisFunc(("\n"));
103
104	ComAssertRet(parent, E_INVALIDARG);
105
106	/* Enclose the state transition NotReady->InInit->Ready */
107	AutoInitSpan autoInitSpan(this);
108	AssertReturn(autoInitSpan.isOk(), E_FAIL);
109
110	unconst(mParent) = parent;
111
112	#ifndef VBOXBFE_WITHOUT_COM
113	unconst(mEventSource).createObject();
114	HRESULT rc = mEventSource->init(static_cast<IMouse*>(this));
115	AssertComRCReturnRC(rc);
116	mMouseEvent.init(mEventSource, VBoxEventType_OnGuestMouseEvent,
117	0, 0, 0, 0, 0);
118	#endif
119
120	mfHostCaps = 0;
121
122	/* Confirm a successful initialization */
123	autoInitSpan.setSucceeded();
124
125	return S_OK;
126	}
127
128	/**
129	* Uninitializes the instance and sets the ready flag to FALSE.
130	* Called either from FinalRelease() or by the parent when it gets destroyed.
131	*/
132	void Mouse::uninit()
133	{
134	LogFlowThisFunc(("\n"));
135
136	/* Enclose the state transition Ready->InUninit->NotReady */
137	AutoUninitSpan autoUninitSpan(this);
138	if (autoUninitSpan.uninitDone())
139	return;
140
141	for (unsigned i = 0; i < MOUSE_MAX_DEVICES; ++i)
142	{
143	if (mpDrv[i])
144	mpDrv[i]->pMouse = NULL;
145	mpDrv[i] = NULL;
146	}
147
148	#ifdef VBOXBFE_WITHOUT_COM
149	mParent = NULL;
150	#else
151	mMouseEvent.uninit();
152	unconst(mEventSource).setNull();
153	unconst(mParent) = NULL;
154	#endif
155	}
156
157
158	// IMouse properties
159	/////////////////////////////////////////////////////////////////////////////
160
161	/** Query the VMM device for the Guest Additions's (and the host front-end's)
162	* mouse handling capabilities.
163	* @note all calls out of this object are made with no locks held! */
164	HRESULT Mouse::getVMMDevMouseCaps(uint32_t *pfCaps)
165	{
166	AssertPtrReturn(pfCaps, E_POINTER);
167	/** @todo does getting the VMMDev and the VMMDevPort like this guarantee
168	* they won't go away while we are using them? */
169	VMMDev *pVMMDev = mParent->getVMMDev();
170	ComAssertRet(pVMMDev, E_FAIL);
171	PPDMIVMMDEVPORT pVMMDevPort = pVMMDev->getVMMDevPort();
172	ComAssertRet(pVMMDevPort, E_FAIL);
173
174	int rc = pVMMDevPort->pfnQueryMouseCapabilities(pVMMDevPort, pfCaps);
175	return RT_SUCCESS(rc) ? S_OK : E_FAIL;
176	}
177
178	/** Report the front-end's mouse handling capabilities to the VMM device and
179	* thus to the guest.
180	* @note all calls out of this object are made with no locks held! */
181	HRESULT Mouse::setVMMDevMouseCaps(uint32_t fCaps)
182	{
183	VMMDev *pVMMDev = mParent->getVMMDev();
184	ComAssertRet(pVMMDev, E_FAIL);
185	PPDMIVMMDEVPORT pVMMDevPort = pVMMDev->getVMMDevPort();
186	ComAssertRet(pVMMDevPort, E_FAIL);
187
188	int rc = pVMMDevPort->pfnSetMouseCapabilities(pVMMDevPort, fCaps);
189	return RT_SUCCESS(rc) ? S_OK : E_FAIL;
190	}
191
192	/**
193	* Returns whether the current setup can accept absolute mouse events, either
194	* because an emulated absolute pointing device is active or because the Guest
195	* Additions are.
196	*
197	* @returns COM status code
198	* @param absoluteSupported address of result variable
199	*/
200	STDMETHODIMP Mouse::COMGETTER(AbsoluteSupported) (BOOL *absoluteSupported)
201	{
202	if (!absoluteSupported)
203	return E_POINTER;
204
205	AutoCaller autoCaller(this);
206	if (FAILED(autoCaller.rc())) return autoCaller.rc();
207
208	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
209	bool fAbs = false;
210
211	if (mfVMMDevCanAbs)
212	fAbs = TRUE;
213
214	for (unsigned i = 0; i < MOUSE_MAX_DEVICES; ++i)
215	if (mpDrv[i] && (mpDrv[i]->u32DevCaps & MOUSE_DEVCAP_ABSOLUTE))
216	fAbs = TRUE;
217
218	*absoluteSupported = fAbs;
219	return S_OK;
220	}
221
222	/**
223	* Returns whether the current setup can accept relative mouse events, that is,
224	* whether an emulated relative pointing device is active.
225	*
226	* @returns COM status code
227	* @param relativeSupported address of result variable
228	*/
229	STDMETHODIMP Mouse::COMGETTER(RelativeSupported) (BOOL *relativeSupported)
230	{
231	if (!relativeSupported)
232	return E_POINTER;
233
234	AutoCaller autoCaller(this);
235	if (FAILED(autoCaller.rc())) return autoCaller.rc();
236
237	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
238	bool fRel = false;
239
240	for (unsigned i = 0; i < MOUSE_MAX_DEVICES; ++i)
241	if (mpDrv[i] && (mpDrv[i]->u32DevCaps & MOUSE_DEVCAP_RELATIVE))
242	fRel = TRUE;
243
244	*relativeSupported = fRel;
245	return S_OK;
246	}
247
248	/**
249	* Returns whether the guest can currently switch to drawing the mouse cursor
250	* itself if it is asked to by the front-end.
251	*
252	* @returns COM status code
253	* @param pfNeedsHostCursor address of result variable
254	*/
255	STDMETHODIMP Mouse::COMGETTER(NeedsHostCursor) (BOOL *pfNeedsHostCursor)
256	{
257	if (!pfNeedsHostCursor)
258	return E_POINTER;
259
260	AutoCaller autoCaller(this);
261	if (FAILED(autoCaller.rc())) return autoCaller.rc();
262
263	*pfNeedsHostCursor = mfVMMDevNeedsHostCursor;
264	return S_OK;
265	}
266
267	// IMouse methods
268	/////////////////////////////////////////////////////////////////////////////
269
270	/** Converts a bitfield containing information about mouse buttons currently
271	* held down from the format used by the front-end to the format used by PDM
272	* and the emulated pointing devices. */
273	static uint32_t mouseButtonsToPDM(LONG buttonState)
274	{
275	uint32_t fButtons = 0;
276	if (buttonState & MouseButtonState_LeftButton)
277	fButtons \|= PDMIMOUSEPORT_BUTTON_LEFT;
278	if (buttonState & MouseButtonState_RightButton)
279	fButtons \|= PDMIMOUSEPORT_BUTTON_RIGHT;
280	if (buttonState & MouseButtonState_MiddleButton)
281	fButtons \|= PDMIMOUSEPORT_BUTTON_MIDDLE;
282	if (buttonState & MouseButtonState_XButton1)
283	fButtons \|= PDMIMOUSEPORT_BUTTON_X1;
284	if (buttonState & MouseButtonState_XButton2)
285	fButtons \|= PDMIMOUSEPORT_BUTTON_X2;
286	return fButtons;
287	}
288
289	#ifndef VBOXBFE_WITHOUT_COM
290	STDMETHODIMP Mouse::COMGETTER(EventSource)(IEventSource ** aEventSource)
291	{
292	CheckComArgOutPointerValid(aEventSource);
293
294	AutoCaller autoCaller(this);
295	if (FAILED(autoCaller.rc())) return autoCaller.rc();
296
297	// no need to lock - lifetime constant
298	mEventSource.queryInterfaceTo(aEventSource);
299
300	return S_OK;
301	}
302	#endif
303
304	/**
305	* Send a relative pointer event to the relative device we deem most
306	* appropriate.
307	*
308	* @returns COM status code
309	*/
310	HRESULT Mouse::reportRelEventToMouseDev(int32_t dx, int32_t dy, int32_t dz,
311	int32_t dw, uint32_t fButtons)
312	{
313	if (dx \|\| dy \|\| dz \|\| dw \|\| fButtons != mLastButtons)
314	{
315	PPDMIMOUSEPORT pUpPort = NULL;
316	{
317	AutoReadLock aLock(this COMMA_LOCKVAL_SRC_POS);
318
319	for (unsigned i = 0; !pUpPort && i < MOUSE_MAX_DEVICES; ++i)
320	{
321	if (mpDrv[i] && (mpDrv[i]->u32DevCaps & MOUSE_DEVCAP_RELATIVE))
322	pUpPort = mpDrv[i]->pUpPort;
323	}
324	}
325	if (!pUpPort)
326	return S_OK;
327
328	int vrc = pUpPort->pfnPutEvent(pUpPort, dx, dy, dz, dw, fButtons);
329
330	if (RT_FAILURE(vrc))
331	return setError(VBOX_E_IPRT_ERROR,
332	tr("Could not send the mouse event to the virtual mouse (%Rrc)"),
333	vrc);
334	mLastButtons = fButtons;
335	}
336	return S_OK;
337	}
338
339
340	/**
341	* Send an absolute pointer event to the emulated absolute device we deem most
342	* appropriate.
343	*
344	* @returns COM status code
345	*/
346	HRESULT Mouse::reportAbsEventToMouseDev(uint32_t mouseXAbs, uint32_t mouseYAbs,
347	int32_t dz, int32_t dw, uint32_t fButtons)
348	{
349	if ( mouseXAbs != mLastAbsX \|\| mouseYAbs != mLastAbsY
350	\|\| dz \|\| dw \|\| fButtons != mLastButtons)
351	{
352	PPDMIMOUSEPORT pUpPort = NULL;
353	{
354	AutoReadLock aLock(this COMMA_LOCKVAL_SRC_POS);
355
356	for (unsigned i = 0; !pUpPort && i < MOUSE_MAX_DEVICES; ++i)
357	{
358	if (mpDrv[i] && (mpDrv[i]->u32DevCaps & MOUSE_DEVCAP_ABSOLUTE))
359	pUpPort = mpDrv[i]->pUpPort;
360	}
361	}
362	if (!pUpPort)
363	return S_OK;
364
365	int vrc = pUpPort->pfnPutEventAbs(pUpPort, mouseXAbs, mouseYAbs, dz,
366	dw, fButtons);
367	if (RT_FAILURE(vrc))
368	return setError(VBOX_E_IPRT_ERROR,
369	tr("Could not send the mouse event to the virtual mouse (%Rrc)"),
370	vrc);
371	mLastButtons = fButtons;
372
373	}
374	return S_OK;
375	}
376
377
378	/**
379	* Send an absolute position event to the VMM device.
380	* @note all calls out of this object are made with no locks held!
381	*
382	* @returns COM status code
383	*/
384	HRESULT Mouse::reportAbsEventToVMMDev(uint32_t mouseXAbs, uint32_t mouseYAbs)
385	{
386	VMMDev *pVMMDev = mParent->getVMMDev();
387	ComAssertRet(pVMMDev, E_FAIL);
388	PPDMIVMMDEVPORT pVMMDevPort = pVMMDev->getVMMDevPort();
389	ComAssertRet(pVMMDevPort, E_FAIL);
390
391	if (mouseXAbs != mLastAbsX \|\| mouseYAbs != mLastAbsY)
392	{
393	int vrc = pVMMDevPort->pfnSetAbsoluteMouse(pVMMDevPort,
394	mouseXAbs, mouseYAbs);
395	if (RT_FAILURE(vrc))
396	return setError(VBOX_E_IPRT_ERROR,
397	tr("Could not send the mouse event to the virtual mouse (%Rrc)"),
398	vrc);
399	}
400	return S_OK;
401	}
402
403
404	/**
405	* Send an absolute pointer event to a pointing device (the VMM device if
406	* possible or whatever emulated absolute device seems best to us if not).
407	*
408	* @returns COM status code
409	*/
410	HRESULT Mouse::reportAbsEvent(uint32_t mouseXAbs, uint32_t mouseYAbs,
411	int32_t dz, int32_t dw, uint32_t fButtons,
412	bool fUsesVMMDevEvent)
413	{
414	HRESULT rc;
415	/** If we are using the VMMDev to report absolute position but without
416	* VMMDev IRQ support then we need to send a small "jiggle" to the emulated
417	* relative mouse device to alert the guest to changes. */
418	LONG cJiggle = 0;
419
420	if (mfVMMDevCanAbs)
421	{
422	/*
423	* Send the absolute mouse position to the VMM device.
424	*/
425	if (mouseXAbs != mLastAbsX \|\| mouseYAbs != mLastAbsY)
426	{
427	rc = reportAbsEventToVMMDev(mouseXAbs, mouseYAbs);
428	cJiggle = !fUsesVMMDevEvent;
429	}
430	rc = reportRelEventToMouseDev(cJiggle, 0, dz, dw, fButtons);
431	}
432	else
433	rc = reportAbsEventToMouseDev(mouseXAbs, mouseYAbs, dz, dw, fButtons);
434
435	mLastAbsX = mouseXAbs;
436	mLastAbsY = mouseYAbs;
437	return rc;
438	}
439
440	/**
441	* Send a relative mouse event to the guest.
442	* @note the VMMDev capability change is so that the guest knows we are sending
443	* real events over the PS/2 device and not dummy events to signal the
444	* arrival of new absolute pointer data
445	*
446	* @returns COM status code
447	* @param dx X movement
448	* @param dy Y movement
449	* @param dz Z movement
450	* @param buttonState The mouse button state
451	*/
452	STDMETHODIMP Mouse::PutMouseEvent(LONG dx, LONG dy, LONG dz, LONG dw, LONG buttonState)
453	{
454	HRESULT rc;
455	/** Do we need to send updated capabilities to the VMM device? */
456	bool fUpdateCaps = FALSE;
457	uint32_t fButtons;
458
459	AutoCaller autoCaller(this);
460	if (FAILED(autoCaller.rc())) return autoCaller.rc();
461
462	{
463	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
464
465	LogRel3(("%s: dx=%d, dy=%d, dz=%d, dw=%d\n", __PRETTY_FUNCTION__,
466	dx, dy, dz, dw));
467	/* Make sure that the guest knows that we are sending real movement
468	* events to the PS/2 device and not just dummy wake-up ones. */
469	if (mfHostCaps & VMMDEV_MOUSE_HOST_WANTS_ABSOLUTE)
470	{
471	mfHostCaps &= ~VMMDEV_MOUSE_HOST_WANTS_ABSOLUTE;
472	fUpdateCaps = TRUE;
473	}
474
475	fButtons = mouseButtonsToPDM(buttonState);
476	}
477	/** @note we drop the lock before calling out of the object! */
478	if (fUpdateCaps)
479	setVMMDevMouseCaps(mfHostCaps);
480	rc = reportRelEventToMouseDev(dx, dy, dz, dw, fButtons);
481
482	#ifndef VBOXBFE_WITHOUT_COM
483	mMouseEvent.reinit(VBoxEventType_OnGuestMouseEvent, false, dx, dy, dz, dw, fButtons);
484	mMouseEvent.fire(0);
485	#endif
486
487	return rc;
488	}
489
490	/**
491	* Convert an (X, Y) value pair in screen co-ordinates (starting from 1) to a
492	* value from 0 to 0xffff.
493	*
494	* @returns COM status value
495	*/
496	HRESULT Mouse::convertDisplayRes(LONG x, LONG y, uint32_t pcX, uint32_t pcY)
497	{
498	AssertPtrReturn(pcX, E_POINTER);
499	AssertPtrReturn(pcY, E_POINTER);
500	Display *pDisplay = mParent->getDisplay();
501	ComAssertRet(pDisplay, E_FAIL);
502
503	ULONG displayWidth, displayHeight;
504	/* Takes the display lock */
505	HRESULT rc = pDisplay->GetScreenResolution (0, &displayWidth, &displayHeight,
506	NULL);
507	if (FAILED(rc))
508	return rc;
509
510	pcX = displayWidth ? ((x - 1) 0xFFFF) / displayWidth: 0;
511	pcY = displayHeight ? ((y - 1) 0xFFFF) / displayHeight: 0;
512	return S_OK;
513	}
514
515
516	/**
517	* Send an absolute mouse event to the VM. This requires either VirtualBox-
518	* specific drivers installed in the guest or absolute pointing device
519	* emulation.
520	* @note the VMMDev capability change is so that the guest knows we are sending
521	* dummy events over the PS/2 device to signal the arrival of new
522	* absolute pointer data, and not pointer real movement data
523	* @note all calls out of this object are made with no locks held!
524	*
525	* @returns COM status code
526	* @param x X position (pixel), starting from 1
527	* @param y Y position (pixel), starting from 1
528	* @param dz Z movement
529	* @param buttonState The mouse button state
530	*/
531	STDMETHODIMP Mouse::PutMouseEventAbsolute(LONG x, LONG y, LONG dz, LONG dw,
532	LONG buttonState)
533	{
534	AutoCaller autoCaller(this);
535	if (FAILED(autoCaller.rc())) return autoCaller.rc();
536
537	LogRel3(("%s: x=%d, y=%d, dz=%d, dw=%d, buttonState=0x%x\n",
538	__PRETTY_FUNCTION__, x, y, dz, dw, buttonState));
539
540	uint32_t mouseXAbs, mouseYAbs;
541	/** Do we need to send updated capabilities to the VMM device? */
542	bool fUpdateCaps = FALSE;
543
544	/** @todo the front end should do this conversion to avoid races */
545	/** @note Or maybe not... races are pretty inherent in everything done in
546	* this object and not really bad as far as I can see. */
547	HRESULT rc = convertDisplayRes(x, y, &mouseXAbs, &mouseYAbs);
548	if (FAILED(rc)) return rc;
549
550	/** @todo multi-monitor Windows guests expect this to be unbounded.
551	* Understand the issues involved and fix for the rest. */
552	/* if (mouseXAbs > 0xffff)
553	mouseXAbs = mLastAbsX;
554	if (mouseYAbs > 0xffff)
555	mouseYAbs = mLastAbsY; */
556
557	uint32_t mouseCaps;
558	rc = getVMMDevMouseCaps(&mouseCaps);
559	if (FAILED(rc)) return rc;
560	uint32_t fButtons = mouseButtonsToPDM(buttonState);
561
562	/* If we are doing old-style (IRQ-less) absolute reporting to the VMM
563	* device then make sure the guest is aware of it, so that it knows to
564	* ignore relative movement on the PS/2 device. */
565	{
566	AutoWriteLock aLock(this COMMA_LOCKVAL_SRC_POS);
567
568	if (!(mfHostCaps & VMMDEV_MOUSE_HOST_WANTS_ABSOLUTE))
569	{
570	mfHostCaps \|= VMMDEV_MOUSE_HOST_WANTS_ABSOLUTE;
571	fUpdateCaps = TRUE;
572	}
573	}
574	/** @note we drop the lock again before calling out! */
575	if (fUpdateCaps)
576	setVMMDevMouseCaps(mfHostCaps);
577
578	rc = reportAbsEvent(mouseXAbs, mouseYAbs, dz, dw, fButtons,
579	mouseCaps & VMMDEV_MOUSE_GUEST_USES_EVENT);
580
581	#ifndef VBOXBFE_WITHOUT_COM
582	mMouseEvent.reinit(VBoxEventType_OnGuestMouseEvent, true, x, y, dz, dw, fButtons);
583	mMouseEvent.fire(0);
584	#endif
585
586	return rc;
587	}
588
589	// private methods
590	/////////////////////////////////////////////////////////////////////////////
591
592
593	/** Work out what mouse capabilities the guest and the front-end have to offer,
594	* based on the state of the available emulated devices and the capabilities
595	* the guest has signalled to the VMM device, and notify the guest and the
596	* Console respectively about what the other can do. */
597	void Mouse::sendMouseCapsNotifications(void)
598	{
599	bool fAbsDev = false;
600	bool fRelDev = false;
601	uint32_t u32MouseCaps;
602
603	{
604	AutoWriteLock aLock(this COMMA_LOCKVAL_SRC_POS);
605
606	for (unsigned i = 0; i < MOUSE_MAX_DEVICES; ++i)
607	if (mpDrv[i])
608	{
609	if (mpDrv[i]->u32DevCaps & MOUSE_DEVCAP_ABSOLUTE)
610	fAbsDev = true;
611	if (mpDrv[i]->u32DevCaps & MOUSE_DEVCAP_RELATIVE)
612	fRelDev = true;
613	}
614	if (fAbsDev && !(mfHostCaps & VMMDEV_MOUSE_HOST_HAS_ABS_DEV))
615	mfHostCaps \|= VMMDEV_MOUSE_HOST_HAS_ABS_DEV;
616	if (!fAbsDev && (mfHostCaps & VMMDEV_MOUSE_HOST_HAS_ABS_DEV))
617	mfHostCaps &= ~VMMDEV_MOUSE_HOST_HAS_ABS_DEV;
618	}
619	/** @note we drop the lock again before calling out! */
620	if (SUCCEEDED(getVMMDevMouseCaps(&u32MouseCaps)))
621	mfVMMDevCanAbs = (u32MouseCaps & VMMDEV_MOUSE_GUEST_CAN_ABSOLUTE)
622	&& fRelDev;
623	else
624	mfVMMDevCanAbs = false;
625	/** @todo this call takes the Console lock in order to update the cached
626	* callback data atomically. However I can't see any sign that the cached
627	* data is ever used again. */
628	mParent->onMouseCapabilityChange(fAbsDev \|\| mfVMMDevCanAbs, fRelDev,
629	mfVMMDevNeedsHostCursor);
630	/** @todo if this gets called during device initialisation we get an
631	* error due to VMMDev not being initialised yet. */
632	setVMMDevMouseCaps(mfHostCaps);
633	}
634
635
636	/**
637	* @interface_method_impl{PDMIMOUSECONNECTOR,pfnReportModes}
638	* A virtual device is notifying us about its current state and capabilities
639	*/
640	DECLCALLBACK(void) Mouse::mouseReportModes(PPDMIMOUSECONNECTOR pInterface, bool fRel, bool fAbs)
641	{
642	PDRVMAINMOUSE pDrv = RT_FROM_MEMBER(pInterface, DRVMAINMOUSE, IConnector);
643	if (fRel)
644	pDrv->u32DevCaps \|= MOUSE_DEVCAP_RELATIVE;
645	else
646	pDrv->u32DevCaps &= ~MOUSE_DEVCAP_RELATIVE;
647	if (fAbs)
648	pDrv->u32DevCaps \|= MOUSE_DEVCAP_ABSOLUTE;
649	else
650	pDrv->u32DevCaps &= ~MOUSE_DEVCAP_ABSOLUTE;
651
652	pDrv->pMouse->sendMouseCapsNotifications();
653	}
654
655
656	/**
657	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
658	*/
659	DECLCALLBACK(void ) Mouse::drvQueryInterface(PPDMIBASE pInterface, const char pszIID)
660	{
661	PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
662	PDRVMAINMOUSE pDrv = PDMINS_2_DATA(pDrvIns, PDRVMAINMOUSE);
663
664	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
665	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIMOUSECONNECTOR, &pDrv->IConnector);
666	return NULL;
667	}
668
669
670	/**
671	* Destruct a mouse driver instance.
672	*
673	* @returns VBox status.
674	* @param pDrvIns The driver instance data.
675	*/
676	DECLCALLBACK(void) Mouse::drvDestruct(PPDMDRVINS pDrvIns)
677	{
678	PDRVMAINMOUSE pData = PDMINS_2_DATA(pDrvIns, PDRVMAINMOUSE);
679	LogFlow(("Mouse::drvDestruct: iInstance=%d\n", pDrvIns->iInstance));
680	PDMDRV_CHECK_VERSIONS_RETURN_VOID(pDrvIns);
681
682	if (pData->pMouse)
683	{
684	AutoWriteLock mouseLock(pData->pMouse COMMA_LOCKVAL_SRC_POS);
685	for (unsigned cDev = 0; cDev < MOUSE_MAX_DEVICES; ++cDev)
686	if (pData->pMouse->mpDrv[cDev] == pData)
687	{
688	pData->pMouse->mpDrv[cDev] = NULL;
689	break;
690	}
691	}
692	}
693
694
695	/**
696	* Construct a mouse driver instance.
697	*
698	* @copydoc FNPDMDRVCONSTRUCT
699	*/
700	DECLCALLBACK(int) Mouse::drvConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
701	{
702	PDRVMAINMOUSE pData = PDMINS_2_DATA(pDrvIns, PDRVMAINMOUSE);
703	LogFlow(("drvMainMouse_Construct: iInstance=%d\n", pDrvIns->iInstance));
704	PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns);
705
706	/*
707	* Validate configuration.
708	*/
709	if (!CFGMR3AreValuesValid(pCfg, "Object\0"))
710	return VERR_PDM_DRVINS_UNKNOWN_CFG_VALUES;
711	AssertMsgReturn(PDMDrvHlpNoAttach(pDrvIns) == VERR_PDM_NO_ATTACHED_DRIVER,
712	("Configuration error: Not possible to attach anything to this driver!\n"),
713	VERR_PDM_DRVINS_NO_ATTACH);
714
715	/*
716	* IBase.
717	*/
718	pDrvIns->IBase.pfnQueryInterface = Mouse::drvQueryInterface;
719
720	pData->IConnector.pfnReportModes = Mouse::mouseReportModes;
721
722	/*
723	* Get the IMousePort interface of the above driver/device.
724	*/
725	pData->pUpPort = (PPDMIMOUSEPORT)pDrvIns->pUpBase->pfnQueryInterface(pDrvIns->pUpBase, PDMIMOUSEPORT_IID);
726	if (!pData->pUpPort)
727	{
728	AssertMsgFailed(("Configuration error: No mouse port interface above!\n"));
729	return VERR_PDM_MISSING_INTERFACE_ABOVE;
730	}
731
732	/*
733	* Get the Mouse object pointer and update the mpDrv member.
734	*/
735	void *pv;
736	int rc = CFGMR3QueryPtr(pCfg, "Object", &pv);
737	if (RT_FAILURE(rc))
738	{
739	AssertMsgFailed(("Configuration error: No/bad \"Object\" value! rc=%Rrc\n", rc));
740	return rc;
741	}
742	pData->pMouse = (Mouse )pv; /* @todo Check this cast! */
743	unsigned cDev;
744	{
745	AutoReadLock mouseLock(pData->pMouse COMMA_LOCKVAL_SRC_POS);
746
747	for (cDev = 0; cDev < MOUSE_MAX_DEVICES; ++cDev)
748	if (!pData->pMouse->mpDrv[cDev])
749	{
750	pData->pMouse->mpDrv[cDev] = pData;
751	break;
752	}
753	}
754	if (cDev == MOUSE_MAX_DEVICES)
755	return VERR_NO_MORE_HANDLES;
756
757	return VINF_SUCCESS;
758	}
759
760
761	/**
762	* Main mouse driver registration record.
763	*/
764	const PDMDRVREG Mouse::DrvReg =
765	{
766	/* u32Version */
767	PDM_DRVREG_VERSION,
768	/* szName */
769	"MainMouse",
770	/* szRCMod */
771	"",
772	/* szR0Mod */
773	"",
774	/* pszDescription */
775	"Main mouse driver (Main as in the API).",
776	/* fFlags */
777	PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
778	/* fClass. */
779	PDM_DRVREG_CLASS_MOUSE,
780	/* cMaxInstances */
781	~0,
782	/* cbInstance */
783	sizeof(DRVMAINMOUSE),
784	/* pfnConstruct */
785	Mouse::drvConstruct,
786	/* pfnDestruct */
787	Mouse::drvDestruct,
788	/* pfnRelocate */
789	NULL,
790	/* pfnIOCtl */
791	NULL,
792	/* pfnPowerOn */
793	NULL,
794	/* pfnReset */
795	NULL,
796	/* pfnSuspend */
797	NULL,
798	/* pfnResume */
799	NULL,
800	/* pfnAttach */
801	NULL,
802	/* pfnDetach */
803	NULL,
804	/* pfnPowerOff */
805	NULL,
806	/* pfnSoftReset */
807	NULL,
808	/* u32EndVersion */
809	PDM_DRVREG_VERSION
810	};
811	/* vi: set tabstop=4 shiftwidth=4 expandtab: */

Note: See TracBrowser for help on using the repository browser.

source: vbox/trunk/src/VBox/Main/MouseImpl.cpp@ 33517

Download in other formats: