vboxvideo_70.c@ 34079

Last change on this file since 34079 was 33540, checked in by vboxsync, 14 years ago
*: spelling fixes, thanks Timeless!
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1	/** @file
2	*
3	* Linux Additions X11 graphics driver
4	*/
5
6	/*
7	* Copyright (C) 2006-2007 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	* This code is based on:
19	*
20	* X11 VESA driver
21	*
22	* Copyright (c) 2000 by Conectiva S.A. (http://www.conectiva.com)
23	*
24	* Permission is hereby granted, free of charge, to any person obtaining a
25	* copy of this software and associated documentation files (the "Software"),
26	* to deal in the Software without restriction, including without limitation
27	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
28	* and/or sell copies of the Software, and to permit persons to whom the
29	* Software is furnished to do so, subject to the following conditions:
30	*
31	* The above copyright notice and this permission notice shall be included in
32	* all copies or substantial portions of the Software.
33	*
34	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
35	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
36	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
37	* CONECTIVA LINUX BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
38	* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
39	* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
40	* SOFTWARE.
41	*
42	* Except as contained in this notice, the name of Conectiva Linux shall
43	* not be used in advertising or otherwise to promote the sale, use or other
44	* dealings in this Software without prior written authorization from
45	* Conectiva Linux.
46	*
47	* Authors: Paulo César Pereira de Andrade <[email protected]>
48	*/
49
50	#ifdef XORG_7X
51	# include "xorg-server.h"
52	# include <string.h>
53	#endif
54	#include "vboxvideo.h"
55	#include "version-generated.h"
56	#include "product-generated.h"
57	#include <xf86.h>
58
59	/* All drivers initialising the SW cursor need this */
60	#include "mipointer.h"
61
62	/* All drivers implementing backing store need this */
63	#include "mibstore.h"
64
65	/* Colormap handling */
66	#include "micmap.h"
67	#include "xf86cmap.h"
68
69	/* DPMS */
70	/* #define DPMS_SERVER
71	#include "extensions/dpms.h" */
72
73	/* VGA hardware functions for setting and restoring text mode */
74	#include "vgaHW.h"
75
76	/* Mandatory functions */
77
78	static const OptionInfoRec * VBOXAvailableOptions(int chipid, int busid);
79	static void VBOXIdentify(int flags);
80	#ifndef PCIACCESS
81	static Bool VBOXProbe(DriverPtr drv, int flags);
82	#else
83	static Bool VBOXPciProbe(DriverPtr drv, int entity_num,
84	struct pci_device *dev, intptr_t match_data);
85	#endif
86	static Bool VBOXPreInit(ScrnInfoPtr pScrn, int flags);
87	static Bool VBOXScreenInit(int Index, ScreenPtr pScreen, int argc,
88	char **argv);
89	static Bool VBOXEnterVT(int scrnIndex, int flags);
90	static void VBOXLeaveVT(int scrnIndex, int flags);
91	static Bool VBOXCloseScreen(int scrnIndex, ScreenPtr pScreen);
92	static Bool VBOXSaveScreen(ScreenPtr pScreen, int mode);
93	static Bool VBOXSwitchMode(int scrnIndex, DisplayModePtr pMode, int flags);
94	static Bool VBOXSetMode(ScrnInfoPtr pScrn, DisplayModePtr pMode);
95	static void VBOXAdjustFrame(int scrnIndex, int x, int y, int flags);
96	static void VBOXFreeScreen(int scrnIndex, int flags);
97	static void VBOXFreeRec(ScrnInfoPtr pScrn);
98	static void VBOXDisplayPowerManagementSet(ScrnInfoPtr pScrn, int mode,
99	int flags);
100
101	/* locally used functions */
102	static Bool VBOXMapVidMem(ScrnInfoPtr pScrn);
103	static void VBOXUnmapVidMem(ScrnInfoPtr pScrn);
104	static Bool VBOXSaveRestore(ScrnInfoPtr pScrn,
105	vbeSaveRestoreFunction function);
106	static bool VBOXAdjustScreenPixmap(ScrnInfoPtr pScrn, DisplayModePtr pMode);
107
108	enum GenericTypes
109	{
110	CHIP_VBOX_GENERIC
111	};
112
113	#ifdef PCIACCESS
114	static const struct pci_id_match vbox_device_match[] = {
115	{
116	VBOX_VENDORID, VBOX_DEVICEID, PCI_MATCH_ANY, PCI_MATCH_ANY,
117	0, 0, 0
118	},
119
120	{ 0, 0, 0 },
121	};
122	#endif
123
124	/*
125	* This contains the functions needed by the server after loading the
126	* driver module. It must be supplied, and gets added the driver list by
127	* the Module Setup function in the dynamic case. In the static case a
128	* reference to this is compiled in, and this requires that the name of
129	* this DriverRec be an upper-case version of the driver name.
130	*/
131
132	#ifdef XORG_7X
133	_X_EXPORT
134	#endif
135	DriverRec VBOXVIDEO = {
136	VBOX_VERSION,
137	VBOX_DRIVER_NAME,
138	VBOXIdentify,
139	#ifdef PCIACCESS
140	NULL,
141	#else
142	VBOXProbe,
143	#endif
144	VBOXAvailableOptions,
145	NULL,
146	0,
147	#ifdef XORG_7X
148	NULL,
149	#endif
150	#ifdef PCIACCESS
151	vbox_device_match,
152	VBOXPciProbe
153	#endif
154	};
155
156	/* Supported chipsets */
157	static SymTabRec VBOXChipsets[] =
158	{
159	{VBOX_VESA_DEVICEID, "vbox"},
160	{-1, NULL}
161	};
162
163	static PciChipsets VBOXPCIchipsets[] = {
164	{ VBOX_DEVICEID, VBOX_DEVICEID, RES_SHARED_VGA },
165	{ -1, -1, RES_UNDEFINED },
166	};
167
168	typedef enum {
169	OPTION_SHADOW_FB,
170	OPTION_DFLT_REFRESH,
171	OPTION_MODESET_CLEAR_SCREEN
172	} VBOXOpts;
173
174	/* No options for now */
175	static const OptionInfoRec VBOXOptions[] = {
176	{ -1, NULL, OPTV_NONE, {0}, FALSE }
177	};
178
179	/*
180	* List of symbols from other modules that this module references. This
181	* list is used to tell the loader that it is OK for symbols here to be
182	* unresolved providing that it hasn't been told that they haven't been
183	* told that they are essential via a call to xf86LoaderReqSymbols() or
184	* xf86LoaderReqSymLists(). The purpose is this is to avoid warnings about
185	* unresolved symbols that are not required.
186	*/
187	static const char *fbSymbols[] = {
188	"fbPictureInit",
189	"fbScreenInit",
190	NULL
191	};
192
193	static const char *shadowfbSymbols[] = {
194	"ShadowFBInit2",
195	NULL
196	};
197
198	static const char *vbeSymbols[] = {
199	"VBEExtendedInit",
200	"VBEFindSupportedDepths",
201	"VBEGetModeInfo",
202	"VBEGetVBEInfo",
203	"VBEGetVBEMode",
204	"VBEPrintModes",
205	"VBESaveRestore",
206	"VBESetDisplayStart",
207	"VBESetGetDACPaletteFormat",
208	"VBESetGetLogicalScanlineLength",
209	"VBESetGetPaletteData",
210	"VBESetModeNames",
211	"VBESetModeParameters",
212	"VBESetVBEMode",
213	"VBEValidateModes",
214	"vbeDoEDID",
215	"vbeFree",
216	NULL
217	};
218
219	static const char *ramdacSymbols[] = {
220	"xf86InitCursor",
221	"xf86CreateCursorInfoRec",
222	NULL
223	};
224
225	static const char *vgahwSymbols[] = {
226	"vgaHWGetHWRec",
227	"vgaHWHandleColormaps",
228	"vgaHWFreeHWRec",
229	"vgaHWMapMem",
230	"vgaHWUnmapMem",
231	"vgaHWSaveFonts",
232	"vgaHWRestoreFonts",
233	"vgaHWGetIndex",
234	"vgaHWSaveScreen",
235	"vgaHWDPMSSet",
236	NULL
237	};
238
239	#ifdef XFree86LOADER
240	/* Module loader interface */
241	static MODULESETUPPROTO(vboxSetup);
242
243	static XF86ModuleVersionInfo vboxVersionRec =
244	{
245	VBOX_DRIVER_NAME,
246	VBOX_VENDOR,
247	MODINFOSTRING1,
248	MODINFOSTRING2,
249	#ifdef XORG_7X
250	XORG_VERSION_CURRENT,
251	#else
252	XF86_VERSION_CURRENT,
253	#endif
254	1, /* Module major version. Xorg-specific */
255	0, /* Module minor version. Xorg-specific */
256	1, /* Module patchlevel. Xorg-specific */
257	ABI_CLASS_VIDEODRV, /* This is a video driver */
258	ABI_VIDEODRV_VERSION,
259	MOD_CLASS_VIDEODRV,
260	{0, 0, 0, 0}
261	};
262
263	/*
264	* This data is accessed by the loader. The name must be the module name
265	* followed by "ModuleData".
266	*/
267	#ifdef XORG_7X
268	_X_EXPORT
269	#endif
270	XF86ModuleData vboxvideoModuleData = { &vboxVersionRec, vboxSetup, NULL };
271
272	static pointer
273	vboxSetup(pointer Module, pointer Options, int ErrorMajor, int ErrorMinor)
274	{
275	static Bool Initialised = FALSE;
276
277	if (!Initialised)
278	{
279	Initialised = TRUE;
280	#ifdef PCIACCESS
281	xf86AddDriver(&VBOXVIDEO, Module, HaveDriverFuncs);
282	#else
283	xf86AddDriver(&VBOXVIDEO, Module, 0);
284	#endif
285	#ifndef XORG_7X
286	LoaderRefSymLists(fbSymbols,
287	shadowfbSymbols,
288	vbeSymbols,
289	ramdacSymbols,
290	vgahwSymbols,
291	NULL);
292	#endif
293	xf86Msg(X_CONFIG, "Load address of symbol \"VBOXVIDEO\" is %p\n",
294	(void *)&VBOXVIDEO);
295	return (pointer)TRUE;
296	}
297
298	if (ErrorMajor)
299	*ErrorMajor = LDR_ONCEONLY;
300	return (NULL);
301	}
302
303	#endif /* XFree86Loader defined */
304
305	static const OptionInfoRec *
306	VBOXAvailableOptions(int chipid, int busid)
307	{
308	return (VBOXOptions);
309	}
310
311	static void
312	VBOXIdentify(int flags)
313	{
314	xf86PrintChipsets(VBOX_NAME, "guest driver for VirtualBox", VBOXChipsets);
315	}
316
317	static VBOXPtr
318	VBOXGetRec(ScrnInfoPtr pScrn)
319	{
320	if (!pScrn->driverPrivate)
321	{
322	pScrn->driverPrivate = xcalloc(sizeof(VBOXRec), 1);
323	#if 0
324	((VBOXPtr)pScrn->driverPrivate)->vbox_fd = -1;
325	#endif
326	}
327
328	return ((VBOXPtr)pScrn->driverPrivate);
329	}
330
331	static void
332	VBOXFreeRec(ScrnInfoPtr pScrn)
333	{
334	VBOXPtr pVBox = VBOXGetRec(pScrn);
335	xfree(pVBox->savedPal);
336	xfree(pVBox->fonts);
337	xfree(pScrn->driverPrivate);
338	pScrn->driverPrivate = NULL;
339	}
340
341	/*
342	* This function is called once, at the start of the first server generation to
343	* do a minimal probe for supported hardware.
344	*/
345
346	#ifdef PCIACCESS
347	static Bool
348	VBOXPciProbe(DriverPtr drv, int entity_num, struct pci_device *dev,
349	intptr_t match_data)
350	{
351	ScrnInfoPtr pScrn;
352
353	TRACE_ENTRY();
354	pScrn = xf86ConfigPciEntity(NULL, 0, entity_num, VBOXPCIchipsets,
355	NULL, NULL, NULL, NULL, NULL);
356	if (pScrn != NULL) {
357	VBOXPtr pVBox = VBOXGetRec(pScrn);
358
359	pScrn->driverVersion = VBOX_VERSION;
360	pScrn->driverName = VBOX_DRIVER_NAME;
361	pScrn->name = VBOX_NAME;
362	pScrn->Probe = NULL;
363	pScrn->PreInit = VBOXPreInit;
364	pScrn->ScreenInit = VBOXScreenInit;
365	pScrn->SwitchMode = VBOXSwitchMode;
366	/* pScrn->ValidMode = VBOXValidMode; */
367	pScrn->AdjustFrame = VBOXAdjustFrame;
368	pScrn->EnterVT = VBOXEnterVT;
369	pScrn->LeaveVT = VBOXLeaveVT;
370	pScrn->FreeScreen = VBOXFreeScreen;
371
372	pVBox->pciInfo = dev;
373	}
374
375	TRACE_LOG("returning %s\n", BOOL_STR(pScrn != NULL));
376	return (pScrn != NULL);
377	}
378	#else /* !PCIACCESS */
379	static Bool
380	VBOXProbe(DriverPtr drv, int flags)
381	{
382	Bool foundScreen = FALSE;
383	int numDevSections, numUsed;
384	GDevPtr *devSections;
385	int *usedChips;
386	int i;
387
388	/*
389	* Find the config file Device sections that match this
390	* driver, and return if there are none.
391	*/
392	if ((numDevSections = xf86MatchDevice(VBOX_NAME,
393	&devSections)) <= 0)
394	return (FALSE);
395
396	/* PCI BUS */
397	if (xf86GetPciVideoInfo()) {
398	numUsed = xf86MatchPciInstances(VBOX_NAME, VBOX_VENDORID,
399	VBOXChipsets, VBOXPCIchipsets,
400	devSections, numDevSections,
401	drv, &usedChips);
402	if (numUsed > 0) {
403	if (flags & PROBE_DETECT)
404	foundScreen = TRUE;
405	else {
406	for (i = 0; i < numUsed; i++) {
407	ScrnInfoPtr pScrn = NULL;
408	/* Allocate a ScrnInfoRec */
409	if ((pScrn = xf86ConfigPciEntity(pScrn,0,usedChips[i],
410	VBOXPCIchipsets,NULL,
411	NULL,NULL,NULL,NULL))) {
412	pScrn->driverVersion = VBOX_VERSION;
413	pScrn->driverName = VBOX_DRIVER_NAME;
414	pScrn->name = VBOX_NAME;
415	pScrn->Probe = VBOXProbe;
416	pScrn->PreInit = VBOXPreInit;
417	pScrn->ScreenInit = VBOXScreenInit;
418	pScrn->SwitchMode = VBOXSwitchMode;
419	pScrn->AdjustFrame = VBOXAdjustFrame;
420	pScrn->EnterVT = VBOXEnterVT;
421	pScrn->LeaveVT = VBOXLeaveVT;
422	pScrn->FreeScreen = VBOXFreeScreen;
423	foundScreen = TRUE;
424	}
425	}
426	}
427	xfree(usedChips);
428	}
429	}
430	xfree(devSections);
431
432	return (foundScreen);
433	}
434	#endif /* !PCIACCESS */
435
436	/**
437	* This function hooks into the chain that is called when framebuffer access
438	* is allowed or disallowed by a call to EnableDisableFBAccess in the server.
439	* In other words, it observes when the server wishes access to the
440	* framebuffer to be enabled and when it should be disabled. We need to know
441	* this because we disable access ourselves during mode switches (presumably
442	* the server should do this but it doesn't) and want to know whether to
443	* restore it or not afterwards.
444	*/
445	static void
446	vboxEnableDisableFBAccess(int scrnIndex, Bool enable)
447	{
448	ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
449	VBOXPtr pVBox = VBOXGetRec(pScrn);
450
451	pVBox->accessEnabled = enable;
452	pVBox->EnableDisableFBAccess(scrnIndex, enable);
453	}
454
455	/*
456	* QUOTE from the XFree86 DESIGN document:
457	*
458	* The purpose of this function is to find out all the information
459	* required to determine if the configuration is usable, and to initialise
460	* those parts of the ScrnInfoRec that can be set once at the beginning of
461	* the first server generation.
462	*
463	* (...)
464	*
465	* This includes probing for video memory, clocks, ramdac, and all other
466	* HW info that is needed. It includes determining the depth/bpp/visual
467	* and related info. It includes validating and determining the set of
468	* video modes that will be used (and anything that is required to
469	* determine that).
470	*
471	* This information should be determined in the least intrusive way
472	* possible. The state of the HW must remain unchanged by this function.
473	* Although video memory (including MMIO) may be mapped within this
474	* function, it must be unmapped before returning.
475	*
476	* END QUOTE
477	*/
478
479	static Bool
480	VBOXPreInit(ScrnInfoPtr pScrn, int flags)
481	{
482	VBOXPtr pVBox;
483	Gamma gzeros = {0.0, 0.0, 0.0};
484	rgb rzeros = {0, 0, 0};
485	int i;
486	unsigned DispiId;
487	DisplayModePtr pMode;
488	enum { MODE_MIN_SIZE = 64 };
489
490	TRACE_ENTRY();
491	/* Are we really starting the server, or is this just a dummy run? */
492	if (flags & PROBE_DETECT)
493	return (FALSE);
494
495	xf86DrvMsg(pScrn->scrnIndex, X_INFO,
496	"VirtualBox guest additions video driver version "
497	VBOX_VERSION_STRING "\n");
498
499	/* Get our private data from the ScrnInfoRec structure. */
500	pVBox = VBOXGetRec(pScrn);
501
502	/* Initialise the guest library */
503	vbox_init(pScrn->scrnIndex, pVBox);
504
505	/* Entity information seems to mean bus information. */
506	pVBox->pEnt = xf86GetEntityInfo(pScrn->entityList[0]);
507
508	/* The ramdac module is needed for the hardware cursor. */
509	if (!xf86LoadSubModule(pScrn, "ramdac"))
510	return FALSE;
511
512	/* We need the vbe module because we use VBE code to save and restore
513	text mode, in order to keep our code simple. */
514	if (!xf86LoadSubModule(pScrn, "vbe"))
515	return (FALSE);
516
517	/* The framebuffer module. */
518	if (xf86LoadSubModule(pScrn, "fb") == NULL)
519	return (FALSE);
520
521	if (!xf86LoadSubModule(pScrn, "shadowfb"))
522	return FALSE;
523
524	if (!xf86LoadSubModule(pScrn, "vgahw"))
525	return FALSE;
526
527	#ifdef VBOX_DRI
528	/* Load the dri module. */
529	if (!xf86LoadSubModule(pScrn, "dri"))
530	return FALSE;
531	#endif
532
533	#ifndef PCIACCESS
534	if (pVBox->pEnt->location.type != BUS_PCI)
535	return FALSE;
536
537	pVBox->pciInfo = xf86GetPciInfoForEntity(pVBox->pEnt->index);
538	pVBox->pciTag = pciTag(pVBox->pciInfo->bus,
539	pVBox->pciInfo->device,
540	pVBox->pciInfo->func);
541	#endif
542
543	/* Set up our ScrnInfoRec structure to describe our virtual
544	capabilities to X. */
545
546	pScrn->rgbBits = 8;
547
548	/* Let's create a nice, capable virtual monitor. */
549	pScrn->monitor = pScrn->confScreen->monitor;
550	pScrn->monitor->DDC = NULL;
551	pScrn->monitor->nHsync = 1;
552	pScrn->monitor->hsync[0].lo = 1;
553	pScrn->monitor->hsync[0].hi = 10000;
554	pScrn->monitor->nVrefresh = 1;
555	pScrn->monitor->vrefresh[0].lo = 1;
556	pScrn->monitor->vrefresh[0].hi = 100;
557
558	pScrn->chipset = "vbox";
559	pScrn->progClock = TRUE;
560
561	/* Determine the size of the VBox video RAM from PCI data*/
562	#if 0
563	pScrn->videoRam = 1 << pVBox->pciInfo->size[0];
564	#endif
565	/* Using the PCI information caused problems with non-powers-of-two
566	sized video RAM configurations */
567	pScrn->videoRam = inl(VBE_DISPI_IOPORT_DATA) / 1024;
568
569	/* Check if the chip restricts horizontal resolution or not. */
570	outw(VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_ID);
571	outw(VBE_DISPI_IOPORT_DATA, VBE_DISPI_ID_ANYX);
572	DispiId = inw(VBE_DISPI_IOPORT_DATA);
573	if (DispiId == VBE_DISPI_ID_ANYX)
574	pVBox->fAnyX = TRUE;
575	else
576	pVBox->fAnyX = FALSE;
577
578	/* Set up clock information that will support all modes we need. */
579	pScrn->clockRanges = xnfcalloc(sizeof(ClockRange), 1);
580	pScrn->clockRanges->minClock = 1000;
581	pScrn->clockRanges->maxClock = 1000000000;
582	pScrn->clockRanges->clockIndex = -1;
583	pScrn->clockRanges->ClockMulFactor = 1;
584	pScrn->clockRanges->ClockDivFactor = 1;
585
586	/* Determine the preferred size and colour depth and setup video modes */
587	{
588	uint32_t cx = 0, cy = 0, cBits = 0;
589
590	vboxGetPreferredMode(pScrn, &cx, &cy, &cBits);
591	/* We only support 16 and 24 bits depth (i.e. 16 and 32bpp) */
592	if (cBits != 16)
593	cBits = 24;
594	if (!xf86SetDepthBpp(pScrn, cBits, 0, 0, Support32bppFb))
595	return FALSE;
596	vboxAddModes(pScrn, cx, cy);
597	}
598	if (pScrn->bitsPerPixel != 32 && pScrn->bitsPerPixel != 16)
599	{
600	xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
601	"The VBox additions only support 16 and 32bpp graphics modes\n");
602	return FALSE;
603	}
604	xf86PrintDepthBpp(pScrn);
605
606	/* Colour weight - we always call this, since we are always in
607	truecolour. */
608	if (!xf86SetWeight(pScrn, rzeros, rzeros))
609	return (FALSE);
610
611	/* visual init */
612	if (!xf86SetDefaultVisual(pScrn, -1))
613	return (FALSE);
614
615	xf86SetGamma(pScrn, gzeros);
616
617	/* We don't validate with xf86ValidateModes and xf86PruneModes as we
618	* already know what we like and what we don't. */
619
620	pScrn->currentMode = pScrn->modes;
621
622	/* Set the right virtual resolution. */
623	pScrn->virtualX = pScrn->currentMode->HDisplay;
624	pScrn->virtualY = pScrn->currentMode->VDisplay;
625
626	pScrn->displayWidth = pScrn->virtualX;
627
628	xf86PrintModes(pScrn);
629
630	/* Set the DPI. Perhaps we should read this from the host? */
631	xf86SetDpi(pScrn, 96, 96);
632
633	/* options */
634	xf86CollectOptions(pScrn, NULL);
635	if (!(pVBox->Options = xalloc(sizeof(VBOXOptions))))
636	return FALSE;
637	memcpy(pVBox->Options, VBOXOptions, sizeof(VBOXOptions));
638	xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, pVBox->Options);
639
640	/* Framebuffer-related setup */
641	pScrn->bitmapBitOrder = BITMAP_BIT_ORDER;
642
643	/* VGA hardware initialisation */
644	if (!vgaHWGetHWRec(pScrn))
645	return FALSE;
646
647	TRACE_EXIT();
648	return (TRUE);
649	}
650
651	/*
652	* QUOTE from the XFree86 DESIGN document:
653	*
654	* This is called at the start of each server generation.
655	*
656	* (...)
657	*
658	* Decide which operations need to be placed under resource access
659	* control. (...) Map any video memory or other memory regions. (...)
660	* Save the video card state. (...) Initialise the initial video
661	* mode.
662	*
663	* End QUOTE.
664	*/
665	static Bool
666	VBOXScreenInit(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
667	{
668	ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
669	VBOXPtr pVBox = VBOXGetRec(pScrn);
670	VisualPtr visual;
671	unsigned flags;
672
673	TRACE_ENTRY();
674	/* We make use of the X11 VBE code to save and restore text mode, in
675	order to keep our code simple. */
676	if ((pVBox->pVbe = VBEExtendedInit(NULL, pVBox->pEnt->index,
677	SET_BIOS_SCRATCH
678	\| RESTORE_BIOS_SCRATCH)) == NULL)
679	return (FALSE);
680
681	if (pScrn->memPhysBase == 0) {
682	#ifdef PCIACCESS
683	pScrn->memPhysBase = pVBox->pciInfo->regions[0].base_addr;
684	#else
685	pScrn->memPhysBase = pVBox->pciInfo->memBase[0];
686	#endif
687	/* pVBox->mapSize = 1 << pVBox->pciInfo->size[0]; */
688	/* Using the PCI information caused problems with
689	non-powers-of-two sized video RAM configurations */
690	pVBox->mapSize = inl(VBE_DISPI_IOPORT_DATA);
691	pScrn->fbOffset = 0;
692	}
693
694	if (!VBOXMapVidMem(pScrn))
695	return (FALSE);
696
697	/* save current video state */
698	VBOXSaveRestore(pScrn, MODE_SAVE);
699	pVBox->savedPal = VBESetGetPaletteData(pVBox->pVbe, FALSE, 0, 256,
700	NULL, FALSE, FALSE);
701
702	/* set the viewport */
703	VBOXAdjustFrame(scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
704
705	/* Blank the screen for aesthetic reasons. */
706	VBOXSaveScreen(pScreen, SCREEN_SAVER_ON);
707
708	/* mi layer - reset the visual list (?)*/
709	miClearVisualTypes();
710	if (!xf86SetDefaultVisual(pScrn, -1))
711	return (FALSE);
712	if (!miSetVisualTypes(pScrn->depth, TrueColorMask,
713	pScrn->rgbBits, TrueColor))
714	return (FALSE);
715	if (!miSetPixmapDepths())
716	return (FALSE);
717
718	/* Needed before we initialise DRI. */
719	pScrn->virtualX = (pScrn->virtualX + 7) & ~7;
720	pScrn->displayWidth = pScrn->virtualX;
721
722	#ifdef VBOX_DRI
723	pVBox->useDRI = VBOXDRIScreenInit(scrnIndex, pScreen, pVBox);
724	#endif
725
726	/* I checked in the sources, and XFree86 4.2 does seem to support
727	this function for 32bpp. */
728	if (!fbScreenInit(pScreen, pVBox->base,
729	pScrn->virtualX, pScrn->virtualY,
730	pScrn->xDpi, pScrn->yDpi,
731	pScrn->displayWidth, pScrn->bitsPerPixel))
732	return (FALSE);
733
734	/* Fixup RGB ordering */
735	visual = pScreen->visuals + pScreen->numVisuals;
736	while (--visual >= pScreen->visuals) {
737	if ((visual->class \| DynamicClass) == DirectColor) {
738	visual->offsetRed = pScrn->offset.red;
739	visual->offsetGreen = pScrn->offset.green;
740	visual->offsetBlue = pScrn->offset.blue;
741	visual->redMask = pScrn->mask.red;
742	visual->greenMask = pScrn->mask.green;
743	visual->blueMask = pScrn->mask.blue;
744	}
745	}
746
747	/* must be after RGB ordering fixed */
748	fbPictureInit(pScreen, 0, 0);
749
750	xf86SetBlackWhitePixels(pScreen);
751	miInitializeBackingStore(pScreen);
752	xf86SetBackingStore(pScreen);
753
754	/* We need to keep track of whether we are currently switched to a virtual
755	* terminal to know whether a mode set operation is currently safe to do.
756	*/
757	pVBox->vtSwitch = FALSE;
758	/* software cursor */
759	miDCInitialize(pScreen, xf86GetPointerScreenFuncs());
760
761	/* colourmap code - apparently, we need this even in Truecolour */
762	if (!miCreateDefColormap(pScreen))
763	return (FALSE);
764
765	flags = CMAP_RELOAD_ON_MODE_SWITCH;
766
767	if(!vgaHWHandleColormaps(pScreen))
768	return (FALSE);
769
770	/* Hook our observer function ito the chain which is called when
771	* framebuffer access is enabled or disabled in the server, and
772	* assume an initial state of enabled. */
773	pVBox->accessEnabled = TRUE;
774	pVBox->EnableDisableFBAccess = pScrn->EnableDisableFBAccess;
775	pScrn->EnableDisableFBAccess = vboxEnableDisableFBAccess;
776
777	pVBox->CloseScreen = pScreen->CloseScreen;
778	pScreen->CloseScreen = VBOXCloseScreen;
779	pScreen->SaveScreen = VBOXSaveScreen;
780
781	xf86DPMSInit(pScreen, VBOXDisplayPowerManagementSet, 0);
782
783	/* Report any unused options (only for the first generation) */
784	if (serverGeneration == 1)
785	xf86ShowUnusedOptions(pScrn->scrnIndex, pScrn->options);
786
787	/* set first video mode */
788	if (!VBOXSetMode(pScrn, pScrn->currentMode))
789	return FALSE;
790	/* And make sure that a non-current dynamic mode is at the front of the
791	* list */
792	vboxWriteHostModes(pScrn, pScrn->currentMode);
793
794	if (vbox_open (pScrn, pScreen, pVBox)) {
795	if (vbox_cursor_init(pScreen) != TRUE)
796	xf86DrvMsg(scrnIndex, X_ERROR,
797	"Unable to start the VirtualBox mouse pointer integration with the host system.\n");
798	if (vboxEnableVbva(pScrn) == TRUE)
799	xf86DrvMsg(scrnIndex, X_INFO,
800	"The VBox video extensions are now enabled.\n");
801	vboxEnableGraphicsCap(pVBox);
802	}
803
804	#ifdef VBOX_DRI
805	if (pVBox->useDRI)
806	pVBox->useDRI = VBOXDRIFinishScreenInit(pScreen);
807	#endif
808	TRACE_EXIT();
809	return (TRUE);
810	}
811
812	static Bool
813	VBOXEnterVT(int scrnIndex, int flags)
814	{
815	ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
816	VBOXPtr pVBox = VBOXGetRec(pScrn);
817
818	TRACE_ENTRY();
819	pVBox->vtSwitch = FALSE;
820	#ifdef VBOX_DRI
821	if (pVBox->useDRI)
822	DRIUnlock(screenInfo.screens[scrnIndex]);
823	#endif
824	if (!VBOXSetMode(pScrn, pScrn->currentMode))
825	return FALSE;
826	VBOXAdjustFrame(scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
827	if (pVBox->useVbva == TRUE)
828	vboxEnableVbva(pScrn);
829	return TRUE;
830	}
831
832	static void
833	VBOXLeaveVT(int scrnIndex, int flags)
834	{
835	ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
836	VBOXPtr pVBox = VBOXGetRec(pScrn);
837
838	TRACE_ENTRY();
839	VBOXSaveRestore(pScrn, MODE_RESTORE);
840	if (pVBox->useVbva == TRUE)
841	vboxDisableVbva(pScrn);
842	vboxDisableGraphicsCap(pVBox);
843	pVBox->vtSwitch = TRUE;
844	#ifdef VBOX_DRI
845	if (pVBox->useDRI)
846	DRILock(screenInfo.screens[scrnIndex], 0);
847	#endif
848	}
849
850	static Bool
851	VBOXCloseScreen(int scrnIndex, ScreenPtr pScreen)
852	{
853	ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
854	VBOXPtr pVBox = VBOXGetRec(pScrn);
855
856	#ifdef VBOX_DRI
857	if (pVBox->useDRI)
858	VBOXDRICloseScreen(pScreen, pVBox);
859	pVBox->useDRI = false;
860	#endif
861
862	if (pVBox->useVbva == TRUE)
863	vboxDisableVbva(pScrn);
864	vboxDisableGraphicsCap(pVBox);
865	if (pScrn->vtSema) {
866	VBOXSaveRestore(xf86Screens[scrnIndex], MODE_RESTORE);
867	if (pVBox->savedPal)
868	VBESetGetPaletteData(pVBox->pVbe, TRUE, 0, 256,
869	pVBox->savedPal, FALSE, TRUE);
870	VBOXUnmapVidMem(pScrn);
871	}
872	pScrn->vtSema = FALSE;
873
874	/* Destroy the VGA hardware record */
875	vgaHWFreeHWRec(pScrn);
876
877	/* And do additional bits which are separate for historical reasons */
878	vbox_close(pScrn, pVBox);
879
880	pScreen->CloseScreen = pVBox->CloseScreen;
881	return pScreen->CloseScreen(scrnIndex, pScreen);
882	}
883
884	static Bool
885	VBOXSwitchMode(int scrnIndex, DisplayModePtr pMode, int flags)
886	{
887	ScrnInfoPtr pScrn;
888	VBOXPtr pVBox;
889	Bool rc = TRUE;
890
891	pScrn = xf86Screens[scrnIndex]; /* Why does X have three ways of referring to the screen? */
892	pVBox = VBOXGetRec(pScrn);
893	if (pVBox->useVbva)
894	if (!vboxDisableVbva(pScrn)) /* This would be bad. */
895	rc = FALSE;
896	/* We want to disable access to the framebuffer before switching mode.
897	* After doing the switch, we allow access if it was allowed before. */
898	if (pVBox->accessEnabled)
899	pVBox->EnableDisableFBAccess(scrnIndex, FALSE);
900	if (rc && !VBOXSetMode(pScrn, pMode))
901	rc = FALSE;
902	if (rc && !VBOXAdjustScreenPixmap(pScrn, pMode))
903	rc = FALSE;
904	if (rc && !vboxGuestIsSeamless(pScrn))
905	vboxSaveVideoMode(pScrn, pMode->HDisplay, pMode->VDisplay,
906	pScrn->bitsPerPixel);
907	if (rc)
908	{
909	vboxWriteHostModes(pScrn, pMode);
910	xf86PrintModes(pScrn);
911	}
912	if (pVBox->accessEnabled)
913	pVBox->EnableDisableFBAccess(scrnIndex, TRUE);
914	if (pVBox->useVbva)
915	if (!vboxEnableVbva(pScrn)) /* Bad but not fatal */
916	pVBox->useVbva = FALSE;
917	return rc;
918	}
919
920	/* Set a graphics mode */
921	static Bool
922	VBOXSetMode(ScrnInfoPtr pScrn, DisplayModePtr pMode)
923	{
924	TRACE_ENTRY();
925	int bpp = pScrn->depth == 24 ? 32 : 16;
926	VBOXPtr pVBox = VBOXGetRec(pScrn);
927
928	/* Don't fiddle with the hardware if we are switched
929	* to a virtual terminal. */
930	if (pVBox->vtSwitch == TRUE)
931	return TRUE;
932	if (pScrn->virtualX * pScrn->virtualY * bpp / 8
933	>= pScrn->videoRam * 1024)
934	{
935	xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
936	"Unable to set up a virtual screen size of %dx%d with %d Kb of video memory. Please increase the video memory size.\n",
937	pScrn->virtualX, pScrn->virtualY, pScrn->videoRam);
938	return FALSE;
939	}
940
941	pScrn->vtSema = TRUE;
942	/* Disable linear framebuffer mode before making changes to the resolution. */
943	outw(VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_ENABLE);
944	outw(VBE_DISPI_IOPORT_DATA,
945	VBE_DISPI_DISABLED);
946	/* Unlike the resolution, the depth is fixed for a given screen
947	for the lifetime of the X session. */
948	outw(VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_BPP);
949	outw(VBE_DISPI_IOPORT_DATA, bpp);
950	/* HDisplay and VDisplay are actually monitor information about
951	the display part of the scanlines. */
952	outw(VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_XRES);
953	outw(VBE_DISPI_IOPORT_DATA, pMode->HDisplay);
954	outw(VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_YRES);
955	outw(VBE_DISPI_IOPORT_DATA, pMode->VDisplay);
956	/* Enable linear framebuffer mode. */
957	outw(VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_ENABLE);
958	outw(VBE_DISPI_IOPORT_DATA,
959	VBE_DISPI_ENABLED \| VBE_DISPI_LFB_ENABLED);
960	/* Set the virtual resolution. We are still using VESA to control
961	the virtual offset. */
962	outw(VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_VIRT_WIDTH);
963	outw(VBE_DISPI_IOPORT_DATA, pMode->HDisplay);
964	vboxEnableGraphicsCap(pVBox);
965	TRACE_EXIT();
966	return (TRUE);
967	}
968
969	static bool VBOXAdjustScreenPixmap(ScrnInfoPtr pScrn, DisplayModePtr pMode)
970	{
971	ScreenPtr pScreen = pScrn->pScreen;
972	PixmapPtr pPixmap = pScreen->GetScreenPixmap(pScreen);
973	VBOXPtr pVBox = VBOXGetRec(pScrn);
974	int bpp = pScrn->depth == 24 ? 32 : 16;
975	if (!pPixmap) {
976	xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
977	"Failed to get the screen pixmap.\n");
978	return FALSE;
979	}
980	pScreen->ModifyPixmapHeader(pPixmap, pMode->HDisplay, pMode->VDisplay,
981	pScrn->depth, bpp, pMode->HDisplay * bpp / 8,
982	pVBox->base);
983	#ifdef VBOX_DRI
984	if (pVBox->useDRI)
985	VBOXDRIUpdateStride(pScrn, pVBox);
986	#endif
987	pScrn->EnableDisableFBAccess(pScrn->scrnIndex, FALSE);
988	pScrn->EnableDisableFBAccess(pScrn->scrnIndex, TRUE);
989	return TRUE;
990	}
991
992	static void
993	VBOXAdjustFrame(int scrnIndex, int x, int y, int flags)
994	{
995	VBOXPtr pVBox = VBOXGetRec(xf86Screens[scrnIndex]);
996	ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
997
998	/* Don't fiddle with the hardware if we are switched
999	* to a virtual terminal. */
1000	if (pVBox->vtSwitch == TRUE)
1001	return;
1002	pVBox->viewportX = x;
1003	pVBox->viewportY = y;
1004	/* If VBVA is enabled the graphics card will not notice the change. */
1005	if (pVBox->useVbva == TRUE)
1006	vboxDisableVbva(pScrn);
1007	VBESetDisplayStart(pVBox->pVbe, x, y, TRUE);
1008	if (pVBox->useVbva == TRUE)
1009	vboxEnableVbva(pScrn);
1010	}
1011
1012	static void
1013	VBOXFreeScreen(int scrnIndex, int flags)
1014	{
1015	VBOXFreeRec(xf86Screens[scrnIndex]);
1016	}
1017
1018	static Bool
1019	VBOXMapVidMem(ScrnInfoPtr pScrn)
1020	{
1021	VBOXPtr pVBox = VBOXGetRec(pScrn);
1022
1023	if (pVBox->base != NULL)
1024	return (TRUE);
1025
1026	#ifdef PCIACCESS
1027	(void) pci_device_map_range(pVBox->pciInfo,
1028	pScrn->memPhysBase,
1029	pVBox->mapSize,
1030	PCI_DEV_MAP_FLAG_WRITABLE,
1031	& pVBox->base);
1032	#else
1033	pVBox->base = xf86MapPciMem(pScrn->scrnIndex,
1034	VIDMEM_FRAMEBUFFER,
1035	pVBox->pciTag, pScrn->memPhysBase,
1036	(unsigned) pVBox->mapSize);
1037	#endif
1038	if (pVBox->base)
1039	{
1040	/* We need this for saving/restoring textmode */
1041	VGAHWPTR(pScrn)->IOBase = pScrn->domainIOBase;
1042	return vgaHWMapMem(pScrn);
1043	}
1044	else
1045	return FALSE;
1046	}
1047
1048	static void
1049	VBOXUnmapVidMem(ScrnInfoPtr pScrn)
1050	{
1051	VBOXPtr pVBox = VBOXGetRec(pScrn);
1052
1053	if (pVBox->base == NULL)
1054	return;
1055
1056	#ifdef PCIACCESS
1057	(void) pci_device_unmap_range(pVBox->pciInfo,
1058	pVBox->base,
1059	pVBox->mapSize);
1060	#else
1061	xf86UnMapVidMem(pScrn->scrnIndex, pVBox->base,
1062	(unsigned) pVBox->mapSize);
1063	#endif
1064	vgaHWUnmapMem(pScrn);
1065	pVBox->base = NULL;
1066	}
1067
1068	static Bool
1069	VBOXSaveScreen(ScreenPtr pScreen, int mode)
1070	{
1071	return vgaHWSaveScreen(pScreen, mode);
1072	}
1073
1074	Bool
1075	VBOXSaveRestore(ScrnInfoPtr pScrn, vbeSaveRestoreFunction function)
1076	{
1077	VBOXPtr pVBox;
1078
1079	if (MODE_QUERY < 0 \|\| function > MODE_RESTORE)
1080	return (FALSE);
1081
1082	pVBox = VBOXGetRec(pScrn);
1083
1084	/* Query amount of memory to save state */
1085	if (function == MODE_QUERY \|\|
1086	(function == MODE_SAVE && pVBox->state == NULL))
1087	{
1088	/* Make sure we save at least this information in case of failure */
1089	(void)VBEGetVBEMode(pVBox->pVbe, &pVBox->stateMode);
1090	vgaHWSaveFonts(pScrn, &pVBox->vgaRegs);
1091
1092	if (!VBESaveRestore(pVBox->pVbe,function,(pointer)&pVBox->state,
1093	&pVBox->stateSize,&pVBox->statePage))
1094	return FALSE;
1095	}
1096
1097	/* Save/Restore Super VGA state */
1098	if (function != MODE_QUERY) {
1099	Bool retval = TRUE;
1100
1101	if (function == MODE_RESTORE)
1102	memcpy(pVBox->state, pVBox->pstate,
1103	(unsigned) pVBox->stateSize);
1104
1105	if ((retval = VBESaveRestore(pVBox->pVbe,function,
1106	(pointer)&pVBox->state,
1107	&pVBox->stateSize,&pVBox->statePage))
1108	&& function == MODE_SAVE)
1109	{
1110	/* don't rely on the memory not being touched */
1111	if (pVBox->pstate == NULL)
1112	pVBox->pstate = xalloc(pVBox->stateSize);
1113	memcpy(pVBox->pstate, pVBox->state,
1114	(unsigned) pVBox->stateSize);
1115	}
1116
1117	if (function == MODE_RESTORE)
1118	{
1119	VBESetVBEMode(pVBox->pVbe, pVBox->stateMode, NULL);
1120	vgaHWRestoreFonts(pScrn, &pVBox->vgaRegs);
1121	}
1122
1123	if (!retval)
1124	return (FALSE);
1125
1126	}
1127
1128	return (TRUE);
1129	}
1130
1131	static void
1132	VBOXDisplayPowerManagementSet(ScrnInfoPtr pScrn, int mode,
1133	int flags)
1134	{
1135	vgaHWDPMSSet(pScrn, mode, flags);
1136	}

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source: vbox/trunk/src/VBox/Additions/x11/vboxvideo/vboxvideo_70.c@ 34079

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