vboxvideo_13.c@ 34575

Last change on this file since 34575 was 33540, checked in by vboxsync, 14 years ago
*: spelling fixes, thanks Timeless!
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1	/* $Id: vboxvideo_13.c 33540 2010-10-28 09:27:05Z vboxsync $ */
2	/** @file
3	* Linux Additions X11 graphics driver
4	*/
5
6	/*
7	* Copyright (C) 2006-2010 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	#include "xorg-server.h"
51	#include "vboxvideo.h"
52	#include "version-generated.h"
53	#include "product-generated.h"
54	#include <xf86.h>
55
56	/* All drivers initialising the SW cursor need this */
57	#include "mipointer.h"
58
59	/* All drivers implementing backing store need this */
60	#include "mibstore.h"
61
62	/* Colormap handling */
63	#include "micmap.h"
64	#include "xf86cmap.h"
65
66	/* DPMS */
67	/* #define DPMS_SERVER
68	#include "extensions/dpms.h" */
69
70	/* VGA hardware functions for setting and restoring text mode */
71	#include "vgaHW.h"
72
73	/* X.org 1.3+ mode setting */
74	#define _HAVE_STRING_ARCH_strsep /* bits/string2.h, __strsep_1c. */
75	#include "xf86Crtc.h"
76	#include "xf86Modes.h"
77
78	/* Mandatory functions */
79
80	static const OptionInfoRec * VBOXAvailableOptions(int chipid, int busid);
81	static void VBOXIdentify(int flags);
82	#ifndef PCIACCESS
83	static Bool VBOXProbe(DriverPtr drv, int flags);
84	#else
85	static Bool VBOXPciProbe(DriverPtr drv, int entity_num,
86	struct pci_device *dev, intptr_t match_data);
87	#endif
88	static Bool VBOXPreInit(ScrnInfoPtr pScrn, int flags);
89	static Bool VBOXScreenInit(int Index, ScreenPtr pScreen, int argc,
90	char **argv);
91	static Bool VBOXEnterVT(int scrnIndex, int flags);
92	static void VBOXLeaveVT(int scrnIndex, int flags);
93	static Bool VBOXCloseScreen(int scrnIndex, ScreenPtr pScreen);
94	static Bool VBOXSwitchMode(int scrnIndex, DisplayModePtr pMode, int flags);
95	static ModeStatus VBOXValidMode(int scrn, DisplayModePtr p, Bool flag, int pass);
96	static Bool VBOXSetMode(ScrnInfoPtr pScrn, DisplayModePtr pMode);
97	static void VBOXAdjustFrame(int scrnIndex, int x, int y, int flags);
98	static void VBOXFreeScreen(int scrnIndex, int flags);
99	static void VBOXFreeRec(ScrnInfoPtr pScrn);
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
107	enum GenericTypes
108	{
109	CHIP_VBOX_GENERIC
110	};
111
112	#ifdef PCIACCESS
113	static const struct pci_id_match vbox_device_match[] = {
114	{
115	VBOX_VENDORID, VBOX_DEVICEID, PCI_MATCH_ANY, PCI_MATCH_ANY,
116	0, 0, 0
117	},
118
119	{ 0, 0, 0 },
120	};
121	#endif
122
123	/* Supported chipsets */
124	static SymTabRec VBOXChipsets[] =
125	{
126	{VBOX_DEVICEID, "vbox"},
127	{-1, NULL}
128	};
129
130	static PciChipsets VBOXPCIchipsets[] = {
131	{ VBOX_DEVICEID, VBOX_DEVICEID, RES_SHARED_VGA },
132	{ -1, -1, RES_UNDEFINED },
133	};
134
135	/*
136	* This contains the functions needed by the server after loading the
137	* driver module. It must be supplied, and gets added the driver list by
138	* the Module Setup function in the dynamic case. In the static case a
139	* reference to this is compiled in, and this requires that the name of
140	* this DriverRec be an upper-case version of the driver name.
141	*/
142
143	_X_EXPORT DriverRec VBOXVIDEO = {
144	VBOX_VERSION,
145	VBOX_DRIVER_NAME,
146	VBOXIdentify,
147	#ifdef PCIACCESS
148	NULL,
149	#else
150	VBOXProbe,
151	#endif
152	VBOXAvailableOptions,
153	NULL,
154	0,
155	NULL,
156
157	#ifdef PCIACCESS
158	vbox_device_match,
159	VBOXPciProbe
160	#endif
161	};
162
163	/* No options for now */
164	static const OptionInfoRec VBOXOptions[] = {
165	{ -1, NULL, OPTV_NONE, {0}, FALSE }
166	};
167
168	static VBOXPtr
169	VBOXGetRec(ScrnInfoPtr pScrn)
170	{
171	if (!pScrn->driverPrivate) {
172	pScrn->driverPrivate = calloc(sizeof(VBOXRec), 1);
173	}
174
175	return ((VBOXPtr)pScrn->driverPrivate);
176	}
177
178	static void
179	VBOXFreeRec(ScrnInfoPtr pScrn)
180	{
181	VBOXPtr pVBox = VBOXGetRec(pScrn);
182	free(pVBox->savedPal);
183	free(pVBox->fonts);
184	free(pScrn->driverPrivate);
185	pScrn->driverPrivate = NULL;
186	}
187
188	/* X.org 1.3+ mode-setting support ******************************************/
189
190	/* For descriptions of these functions and structures, see
191	hw/xfree86/modes/xf86Crtc.h and hw/xfree86/modes/xf86Modes.h in the
192	X.Org source tree. */
193
194	static Bool
195	VBOXCrtcResize(ScrnInfoPtr scrn, int width, int height)
196	{
197	int bpp = scrn->bitsPerPixel;
198	ScreenPtr pScreen = scrn->pScreen;
199	PixmapPtr pPixmap = NULL;
200	VBOXPtr pVBox = VBOXGetRec(scrn);
201	Bool rc = TRUE;
202
203	TRACE_LOG("width=%d, height=%d\n", width, height);
204	if (width * height * bpp / 8 >= scrn->videoRam * 1024)
205	{
206	xf86DrvMsg(scrn->scrnIndex, X_ERROR,
207	"Unable to set up a virtual screen size of %dx%d with %d Kb of video memory. Please increase the video memory size.\n",
208	width, height, scrn->videoRam);
209	rc = FALSE;
210	}
211	if (rc) {
212	pPixmap = pScreen->GetScreenPixmap(pScreen);
213	if (NULL == pPixmap) {
214	xf86DrvMsg(scrn->scrnIndex, X_ERROR,
215	"Failed to get the screen pixmap.\n");
216	rc = FALSE;
217	}
218	}
219	if (rc) {
220	if (
221	!pScreen->ModifyPixmapHeader(pPixmap, width, height,
222	scrn->depth, bpp, width * bpp / 8,
223	pVBox->base)
224	) {
225	xf86DrvMsg(scrn->scrnIndex, X_ERROR,
226	"Failed to set up the screen pixmap.\n");
227	rc = FALSE;
228	}
229	}
230	if (rc) {
231	scrn->virtualX = width;
232	scrn->virtualY = height;
233	scrn->displayWidth = width;
234	#ifdef VBOX_DRI
235	if (pVBox->useDRI)
236	VBOXDRIUpdateStride(scrn, pVBox);
237	#endif
238	/* Write the new values to the hardware */
239	rc = xf86SetDesiredModes(scrn);
240	}
241	TRACE_LOG("returning %s\n", rc ? "TRUE" : "FALSE");
242	return rc;
243	}
244
245	static const xf86CrtcConfigFuncsRec VBOXCrtcConfigFuncs = {
246	VBOXCrtcResize
247	};
248
249	static void
250	vbox_crtc_dpms(xf86CrtcPtr crtc, int mode)
251	{ (void) crtc; (void) mode; }
252
253	static Bool
254	vbox_crtc_lock (xf86CrtcPtr crtc)
255	{ (void) crtc; return FALSE; }
256
257	static Bool
258	vbox_crtc_mode_fixup (xf86CrtcPtr crtc, DisplayModePtr mode,
259	DisplayModePtr adjusted_mode)
260	{ (void) crtc; (void) mode; (void) adjusted_mode; return TRUE; }
261
262	static void
263	vbox_crtc_stub (xf86CrtcPtr crtc)
264	{ (void) crtc; }
265
266	static void
267	vbox_crtc_mode_set (xf86CrtcPtr crtc, DisplayModePtr mode,
268	DisplayModePtr adjusted_mode, int x, int y)
269	{
270	(void) mode;
271	TRACE_LOG("name=%s, HDisplay=%d, VDisplay=%d, x=%d, y=%d\n", adjusted_mode->name,
272	adjusted_mode->HDisplay, adjusted_mode->VDisplay, x, y);
273	VBOXSetMode(crtc->scrn, adjusted_mode);
274	VBOXAdjustFrame(crtc->scrn->scrnIndex, x, y, 0);
275	/* Don't remember any modes set while we are seamless, as they are
276	* just temporary. */
277	if (!vboxGuestIsSeamless(crtc->scrn))
278	vboxSaveVideoMode(crtc->scrn, adjusted_mode->HDisplay,
279	adjusted_mode->VDisplay, crtc->scrn->bitsPerPixel);
280	}
281
282	static void
283	vbox_crtc_gamma_set (xf86CrtcPtr crtc, CARD16 *red,
284	CARD16 green, CARD16 blue, int size)
285	{ (void) crtc; (void) red; (void) green; (void) blue; (void) size; }
286
287	static void *
288	vbox_crtc_shadow_allocate (xf86CrtcPtr crtc, int width, int height)
289	{ (void) crtc; (void) width; (void) height; return NULL; }
290
291	static const xf86CrtcFuncsRec VBOXCrtcFuncs = {
292	.dpms = vbox_crtc_dpms,
293	.save = NULL, /* These two are never called by the server. */
294	.restore = NULL,
295	.lock = vbox_crtc_lock,
296	.unlock = NULL, /* This will not be invoked if lock returns FALSE. */
297	.mode_fixup = vbox_crtc_mode_fixup,
298	.prepare = vbox_crtc_stub,
299	.mode_set = vbox_crtc_mode_set,
300	.commit = vbox_crtc_stub,
301	.gamma_set = vbox_crtc_gamma_set,
302	.shadow_allocate = vbox_crtc_shadow_allocate,
303	.shadow_create = NULL, /* These two should not be invoked if allocate
304	returns NULL. */
305	.shadow_destroy = NULL,
306	.set_cursor_colors = NULL, /* We are still using the old cursor API. */
307	.set_cursor_position = NULL,
308	.show_cursor = NULL,
309	.hide_cursor = NULL,
310	.load_cursor_argb = NULL,
311	.destroy = vbox_crtc_stub
312	};
313
314	static void
315	vbox_output_stub (xf86OutputPtr output)
316	{ (void) output; }
317
318	static void
319	vbox_output_dpms (xf86OutputPtr output, int mode)
320	{ (void) output; (void) mode; }
321
322	static int
323	vbox_output_mode_valid (xf86OutputPtr output, DisplayModePtr mode)
324	{
325	ScrnInfoPtr pScrn = output->scrn;
326	int rc = MODE_OK;
327	TRACE_LOG("HDisplay=%d, VDisplay=%d\n", mode->HDisplay, mode->VDisplay);
328	/* We always like modes specified by the user in the configuration
329	* file and modes requested by the host, as doing otherwise is likely to
330	* annoy people. */
331	if ( !(mode->type & M_T_USERDEF)
332	&& !(mode->type & M_T_PREFERRED)
333	&& vbox_device_available(VBOXGetRec(pScrn))
334	&& !vboxHostLikesVideoMode(pScrn, mode->HDisplay, mode->VDisplay,
335	pScrn->bitsPerPixel)
336	)
337	rc = MODE_BAD;
338	TRACE_LOG("returning %s\n", MODE_OK == rc ? "MODE_OK" : "MODE_BAD");
339	return rc;
340	}
341
342	static Bool
343	vbox_output_mode_fixup (xf86OutputPtr output, DisplayModePtr mode,
344	DisplayModePtr adjusted_mode)
345	{ (void) output; (void) mode; (void) adjusted_mode; return TRUE; }
346
347	static void
348	vbox_output_mode_set (xf86OutputPtr output, DisplayModePtr mode,
349	DisplayModePtr adjusted_mode)
350	{ (void) output; (void) mode; (void) adjusted_mode; }
351
352	/* A virtual monitor is always connected. */
353	static xf86OutputStatus
354	vbox_output_detect (xf86OutputPtr output)
355	{
356	(void) output;
357	return XF86OutputStatusConnected;
358	}
359
360	static void
361	vbox_output_add_mode (VBOXPtr pVBox, DisplayModePtr *pModes,
362	const char *pszName, int x, int y,
363	Bool isPreferred, Bool isUserDef)
364	{
365	TRACE_LOG("pszName=%s, x=%d, y=%d\n", pszName, x, y);
366	DisplayModePtr pMode = xnfcalloc(1, sizeof(DisplayModeRec));
367
368	pMode->status = MODE_OK;
369	/* We don't ask the host whether it likes user defined modes,
370	* as we assume that the user really wanted that mode. */
371	pMode->type = isUserDef ? M_T_USERDEF : M_T_BUILTIN;
372	if (isPreferred)
373	pMode->type \|= M_T_PREFERRED;
374	/* Older versions of VBox only support screen widths which are a multiple
375	* of 8 */
376	if (pVBox->fAnyX)
377	pMode->HDisplay = x;
378	else
379	pMode->HDisplay = x & ~7;
380	pMode->HSyncStart = pMode->HDisplay + 2;
381	pMode->HSyncEnd = pMode->HDisplay + 4;
382	pMode->HTotal = pMode->HDisplay + 6;
383	pMode->VDisplay = y;
384	pMode->VSyncStart = pMode->VDisplay + 2;
385	pMode->VSyncEnd = pMode->VDisplay + 4;
386	pMode->VTotal = pMode->VDisplay + 6;
387	pMode->Clock = pMode->HTotal * pMode->VTotal * 60 / 1000; /* kHz */
388	if (NULL == pszName) {
389	xf86SetModeDefaultName(pMode);
390	} else {
391	pMode->name = xnfstrdup(pszName);
392	}
393	pModes = xf86ModesAdd(pModes, pMode);
394	}
395
396	static DisplayModePtr
397	vbox_output_get_modes (xf86OutputPtr output)
398	{
399	bool rc;
400	unsigned i;
401	DisplayModePtr pModes = NULL;
402	ScrnInfoPtr pScrn = output->scrn;
403	VBOXPtr pVBox = VBOXGetRec(pScrn);
404
405	TRACE_ENTRY();
406	if (vbox_device_available(pVBox))
407	{
408	uint32_t x, y, bpp, iScreen;
409	rc = vboxGetDisplayChangeRequest(pScrn, &x, &y, &bpp, &iScreen);
410	/* @todo - check the display number once we support multiple displays. */
411	/* If we don't find a display request, see if we have a saved hint
412	* from a previous session. */
413	if (!rc \|\| (0 == x) \|\| (0 == y))
414	rc = vboxRetrieveVideoMode(pScrn, &x, &y, &bpp);
415	if (rc && (0 != x) && (0 != y))
416	vbox_output_add_mode(pVBox, &pModes, NULL, x, y, TRUE, FALSE);
417	}
418	/* Also report any modes the user may have requested in the xorg.conf
419	* configuration file. */
420	for (i = 0; pScrn->display->modes[i] != NULL; i++)
421	{
422	int x, y;
423	if (2 == sscanf(pScrn->display->modes[i], "%dx%d", &x, &y))
424	vbox_output_add_mode(pVBox, &pModes, pScrn->display->modes[i], x, y,
425	FALSE, TRUE);
426	}
427	TRACE_EXIT();
428	return pModes;
429	}
430
431	#ifdef RANDR_12_INTERFACE
432	/* We don't yet have mutable properties, whatever they are. */
433	static Bool
434	vbox_output_set_property(xf86OutputPtr output, Atom property,
435	RRPropertyValuePtr value)
436	{ (void) output; (void) property; (void) value; return FALSE; }
437	#endif
438
439	static const xf86OutputFuncsRec VBOXOutputFuncs = {
440	.create_resources = vbox_output_stub,
441	.dpms = vbox_output_dpms,
442	.save = NULL, /* These two are never called by the server. */
443	.restore = NULL,
444	.mode_valid = vbox_output_mode_valid,
445	.mode_fixup = vbox_output_mode_fixup,
446	.prepare = vbox_output_stub,
447	.commit = vbox_output_stub,
448	.mode_set = vbox_output_mode_set,
449	.detect = vbox_output_detect,
450	.get_modes = vbox_output_get_modes,
451	#ifdef RANDR_12_INTERFACE
452	.set_property = vbox_output_set_property,
453	#endif
454	.destroy = vbox_output_stub
455	};
456
457	#ifdef XFree86LOADER
458	/* Module loader interface */
459	static MODULESETUPPROTO(vboxSetup);
460
461	static XF86ModuleVersionInfo vboxVersionRec =
462	{
463	VBOX_DRIVER_NAME,
464	VBOX_VENDOR,
465	MODINFOSTRING1,
466	MODINFOSTRING2,
467	XORG_VERSION_CURRENT,
468	1, /* Module major version. Xorg-specific */
469	0, /* Module minor version. Xorg-specific */
470	1, /* Module patchlevel. Xorg-specific */
471	ABI_CLASS_VIDEODRV, /* This is a video driver */
472	ABI_VIDEODRV_VERSION,
473	MOD_CLASS_VIDEODRV,
474	{0, 0, 0, 0}
475	};
476
477	/*
478	* This data is accessed by the loader. The name must be the module name
479	* followed by "ModuleData".
480	*/
481	_X_EXPORT XF86ModuleData vboxvideoModuleData = { &vboxVersionRec, vboxSetup, NULL };
482
483	static pointer
484	vboxSetup(pointer Module, pointer Options, int ErrorMajor, int ErrorMinor)
485	{
486	static Bool Initialised = FALSE;
487
488	if (!Initialised)
489	{
490	Initialised = TRUE;
491	#ifdef PCIACCESS
492	xf86AddDriver(&VBOXVIDEO, Module, HaveDriverFuncs);
493	#else
494	xf86AddDriver(&VBOXVIDEO, Module, 0);
495	#endif
496	xf86Msg(X_CONFIG, "Load address of symbol \"VBOXVIDEO\" is %p\n",
497	(void *)&VBOXVIDEO);
498	return (pointer)TRUE;
499	}
500
501	if (ErrorMajor)
502	*ErrorMajor = LDR_ONCEONLY;
503	return (NULL);
504	}
505
506	#endif /* XFree86Loader defined */
507
508	static const OptionInfoRec *
509	VBOXAvailableOptions(int chipid, int busid)
510	{
511	return (VBOXOptions);
512	}
513
514	static void
515	VBOXIdentify(int flags)
516	{
517	xf86PrintChipsets(VBOX_NAME, "guest driver for VirtualBox", VBOXChipsets);
518	}
519
520	/*
521	* This function is called once, at the start of the first server generation to
522	* do a minimal probe for supported hardware.
523	*/
524
525	#ifdef PCIACCESS
526	static Bool
527	VBOXPciProbe(DriverPtr drv, int entity_num, struct pci_device *dev,
528	intptr_t match_data)
529	{
530	ScrnInfoPtr pScrn;
531
532	TRACE_ENTRY();
533	pScrn = xf86ConfigPciEntity(NULL, 0, entity_num, VBOXPCIchipsets,
534	NULL, NULL, NULL, NULL, NULL);
535	if (pScrn != NULL) {
536	VBOXPtr pVBox = VBOXGetRec(pScrn);
537
538	pScrn->driverVersion = VBOX_VERSION;
539	pScrn->driverName = VBOX_DRIVER_NAME;
540	pScrn->name = VBOX_NAME;
541	pScrn->Probe = NULL;
542	pScrn->PreInit = VBOXPreInit;
543	pScrn->ScreenInit = VBOXScreenInit;
544	pScrn->SwitchMode = VBOXSwitchMode;
545	pScrn->ValidMode = VBOXValidMode;
546	pScrn->AdjustFrame = VBOXAdjustFrame;
547	pScrn->EnterVT = VBOXEnterVT;
548	pScrn->LeaveVT = VBOXLeaveVT;
549	pScrn->FreeScreen = VBOXFreeScreen;
550
551	pVBox->pciInfo = dev;
552	}
553
554	TRACE_LOG("returning %s\n", BOOL_STR(pScrn != NULL));
555	return (pScrn != NULL);
556	}
557	#endif
558
559	#ifndef PCIACCESS
560	static Bool
561	VBOXProbe(DriverPtr drv, int flags)
562	{
563	Bool foundScreen = FALSE;
564	int numDevSections;
565	GDevPtr *devSections;
566
567	/*
568	* Find the config file Device sections that match this
569	* driver, and return if there are none.
570	*/
571	if ((numDevSections = xf86MatchDevice(VBOX_NAME,
572	&devSections)) <= 0)
573	return (FALSE);
574
575	/* PCI BUS */
576	if (xf86GetPciVideoInfo()) {
577	int numUsed;
578	int *usedChips;
579	int i;
580	numUsed = xf86MatchPciInstances(VBOX_NAME, VBOX_VENDORID,
581	VBOXChipsets, VBOXPCIchipsets,
582	devSections, numDevSections,
583	drv, &usedChips);
584	if (numUsed > 0) {
585	if (flags & PROBE_DETECT)
586	foundScreen = TRUE;
587	else {
588	for (i = 0; i < numUsed; i++) {
589	ScrnInfoPtr pScrn = NULL;
590	/* Allocate a ScrnInfoRec */
591	if ((pScrn = xf86ConfigPciEntity(pScrn,0,usedChips[i],
592	VBOXPCIchipsets,NULL,
593	NULL,NULL,NULL,NULL))) {
594	pScrn->driverVersion = VBOX_VERSION;
595	pScrn->driverName = VBOX_DRIVER_NAME;
596	pScrn->name = VBOX_NAME;
597	pScrn->Probe = VBOXProbe;
598	pScrn->PreInit = VBOXPreInit;
599	pScrn->ScreenInit = VBOXScreenInit;
600	pScrn->SwitchMode = VBOXSwitchMode;
601	pScrn->ValidMode = VBOXValidMode;
602	pScrn->AdjustFrame = VBOXAdjustFrame;
603	pScrn->EnterVT = VBOXEnterVT;
604	pScrn->LeaveVT = VBOXLeaveVT;
605	pScrn->FreeScreen = VBOXFreeScreen;
606	foundScreen = TRUE;
607	}
608	}
609	}
610	free(usedChips);
611	}
612	}
613
614	free(devSections);
615
616	return (foundScreen);
617	}
618	#endif
619
620	/*
621	* QUOTE from the XFree86 DESIGN document:
622	*
623	* The purpose of this function is to find out all the information
624	* required to determine if the configuration is usable, and to initialise
625	* those parts of the ScrnInfoRec that can be set once at the beginning of
626	* the first server generation.
627	*
628	* (...)
629	*
630	* This includes probing for video memory, clocks, ramdac, and all other
631	* HW info that is needed. It includes determining the depth/bpp/visual
632	* and related info. It includes validating and determining the set of
633	* video modes that will be used (and anything that is required to
634	* determine that).
635	*
636	* This information should be determined in the least intrusive way
637	* possible. The state of the HW must remain unchanged by this function.
638	* Although video memory (including MMIO) may be mapped within this
639	* function, it must be unmapped before returning.
640	*
641	* END QUOTE
642	*/
643
644	static Bool
645	VBOXPreInit(ScrnInfoPtr pScrn, int flags)
646	{
647	VBOXPtr pVBox;
648	Gamma gzeros = {0.0, 0.0, 0.0};
649	rgb rzeros = {0, 0, 0};
650	xf86OutputPtr output;
651	unsigned DispiId;
652
653	/* Are we really starting the server, or is this just a dummy run? */
654	if (flags & PROBE_DETECT)
655	return (FALSE);
656
657	xf86DrvMsg(pScrn->scrnIndex, X_INFO,
658	"VirtualBox guest additions video driver version "
659	VBOX_VERSION_STRING "\n");
660
661	/* Get our private data from the ScrnInfoRec structure. */
662	pVBox = VBOXGetRec(pScrn);
663
664	/* Initialise the guest library */
665	vbox_init(pScrn->scrnIndex, pVBox);
666
667	/* Entity information seems to mean bus information. */
668	pVBox->pEnt = xf86GetEntityInfo(pScrn->entityList[0]);
669
670	/* We need the vbe module because we use VBE code to save and restore
671	text mode, in order to keep our code simple. */
672	if (!xf86LoadSubModule(pScrn, "vbe"))
673	return (FALSE);
674
675	if ((pVBox->pVbe = VBEExtendedInit(NULL, pVBox->pEnt->index,
676	SET_BIOS_SCRATCH
677	\| RESTORE_BIOS_SCRATCH)) == NULL)
678	return (FALSE);
679
680	#ifndef PCIACCESS
681	if (pVBox->pEnt->location.type != BUS_PCI)
682	return FALSE;
683
684	pVBox->pciInfo = xf86GetPciInfoForEntity(pVBox->pEnt->index);
685	pVBox->pciTag = pciTag(pVBox->pciInfo->bus,
686	pVBox->pciInfo->device,
687	pVBox->pciInfo->func);
688	#endif
689
690	/* The ramdac module is needed for the hardware cursor. */
691	if (!xf86LoadSubModule(pScrn, "ramdac"))
692	return FALSE;
693
694	/* The framebuffer module. */
695	if (xf86LoadSubModule(pScrn, "fb") == NULL)
696	return (FALSE);
697
698	if (!xf86LoadSubModule(pScrn, "shadowfb"))
699	return FALSE;
700
701	if (!xf86LoadSubModule(pScrn, "vgahw"))
702	return FALSE;
703
704	/* Set up our ScrnInfoRec structure to describe our virtual
705	capabilities to X. */
706
707	pScrn->chipset = "vbox";
708
709	/* This is still needed, at least for server version 1.3 */
710	pScrn->monitor = pScrn->confScreen->monitor;
711
712	pScrn->progClock = TRUE;
713	pScrn->rgbBits = 8;
714
715	/* Using the PCI information caused problems with non-powers-of-two
716	sized video RAM configurations */
717	pScrn->videoRam = inl(VBE_DISPI_IOPORT_DATA) / 1024;
718
719	/* Check if the chip restricts horizontal resolution or not. */
720	outw(VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_ID);
721	outw(VBE_DISPI_IOPORT_DATA, VBE_DISPI_ID_ANYX);
722	DispiId = inw(VBE_DISPI_IOPORT_DATA);
723	if (DispiId == VBE_DISPI_ID_ANYX)
724	pVBox->fAnyX = TRUE;
725	else
726	pVBox->fAnyX = FALSE;
727
728	/* Query the host for the preferred colour depth */
729	{
730	uint32_t cx, cy, iDisplay, cBits = 24;
731
732	if (vbox_device_available(pVBox))
733	{
734	/* We only support 16 and 24 bits depth (i.e. 16 and 32bpp) */
735	if ( vboxGetDisplayChangeRequest(pScrn, &cx, &cy, &cBits,
736	&iDisplay)
737	&& (cBits != 16)
738	)
739	cBits = 24;
740	}
741	if (!xf86SetDepthBpp(pScrn, cBits, 0, 0, Support32bppFb))
742	return FALSE;
743	}
744	if (pScrn->bitsPerPixel != 32 && pScrn->bitsPerPixel != 16)
745	{
746	xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
747	"The VBox additions only support 16 and 32bpp graphics modes\n");
748	return FALSE;
749	}
750	xf86PrintDepthBpp(pScrn);
751
752	/* options */
753	xf86CollectOptions(pScrn, NULL);
754	if (!(pVBox->Options = malloc(sizeof(VBOXOptions))))
755	return FALSE;
756	memcpy(pVBox->Options, VBOXOptions, sizeof(VBOXOptions));
757	xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, pVBox->Options);
758
759	/* Work around a bug in the original X server modesetting code, which
760	* took the first valid values set to these two as maxima over the
761	* server lifetime. */
762	pScrn->virtualX = 32000;
763	pScrn->virtualY = 32000;
764
765	/* Initialise CRTC and output configuration for use with randr1.2. */
766	xf86CrtcConfigInit(pScrn, &VBOXCrtcConfigFuncs);
767
768	/* Setup our single virtual CRTC. */
769	xf86CrtcCreate(pScrn, &VBOXCrtcFuncs);
770
771	/* Set up our single virtual output. */
772	output = xf86OutputCreate(pScrn, &VBOXOutputFuncs, "VBOX1");
773
774	/* Set a sane minimum and maximum mode size */
775	xf86CrtcSetSizeRange(pScrn, 64, 64, 32000, 32000);
776
777	/* We are not interested in the monitor section in the configuration file. */
778	xf86OutputUseScreenMonitor(output, FALSE);
779	output->possible_crtcs = 1;
780	output->possible_clones = 0;
781
782	/* Now create our initial CRTC/output configuration. */
783	if (!xf86InitialConfiguration(pScrn, TRUE)) {
784	xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "Initial CRTC configuration failed!\n");
785	return (FALSE);
786	}
787
788	/* Colour weight - we always call this, since we are always in
789	truecolour. */
790	if (!xf86SetWeight(pScrn, rzeros, rzeros))
791	return (FALSE);
792
793	/* visual init */
794	if (!xf86SetDefaultVisual(pScrn, -1))
795	return (FALSE);
796
797	xf86SetGamma(pScrn, gzeros);
798
799	/* Set a default display resolution. */
800	xf86SetDpi(pScrn, 96, 96);
801
802	/* Framebuffer-related setup */
803	pScrn->bitmapBitOrder = BITMAP_BIT_ORDER;
804
805	/* VGA hardware initialisation */
806	if (!vgaHWGetHWRec(pScrn))
807	return FALSE;
808
809	#ifdef VBOX_DRI
810	/* Load the dri module. */
811	if (!xf86LoadSubModule(pScrn, "dri"))
812	return FALSE;
813	#endif
814	return (TRUE);
815	}
816
817	/**
818	* This function hooks into the chain that is called when framebuffer access
819	* is allowed or disallowed by a call to EnableDisableFBAccess in the server.
820	* In other words, it observes when the server wishes access to the
821	* framebuffer to be enabled and when it should be disabled. We need to know
822	* this because we disable access ourselves during mode switches (presumably
823	* the server should do this but it doesn't) and want to know whether to
824	* restore it or not afterwards.
825	*/
826	static void
827	vboxEnableDisableFBAccess(int scrnIndex, Bool enable)
828	{
829	ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
830	VBOXPtr pVBox = VBOXGetRec(pScrn);
831
832	TRACE_LOG("enable=%s\n", enable ? "TRUE" : "FALSE");
833	pVBox->accessEnabled = enable;
834	pVBox->EnableDisableFBAccess(scrnIndex, enable);
835	TRACE_EXIT();
836	}
837
838	/*
839	* QUOTE from the XFree86 DESIGN document:
840	*
841	* This is called at the start of each server generation.
842	*
843	* (...)
844	*
845	* Decide which operations need to be placed under resource access
846	* control. (...) Map any video memory or other memory regions. (...)
847	* Save the video card state. (...) Initialise the initial video
848	* mode.
849	*
850	* End QUOTE.Initialise the initial video mode.
851	*/
852	static Bool
853	VBOXScreenInit(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
854	{
855	ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
856	VBOXPtr pVBox = VBOXGetRec(pScrn);
857	VisualPtr visual;
858	unsigned flags;
859
860	if (pScrn->memPhysBase == 0) {
861	#ifdef PCIACCESS
862	pScrn->memPhysBase = pVBox->pciInfo->regions[0].base_addr;
863	#else
864	pScrn->memPhysBase = pVBox->pciInfo->memBase[0];
865	#endif
866	/* pVBox->mapSize = 1 << pVBox->pciInfo->size[0]; */
867	/* Using the PCI information caused problems with
868	non-powers-of-two sized video RAM configurations */
869	pVBox->mapSize = inl(VBE_DISPI_IOPORT_DATA);
870	pScrn->fbOffset = 0;
871	}
872
873	if (!VBOXMapVidMem(pScrn))
874	return (FALSE);
875
876	/* save current video state */
877	VBOXSaveRestore(pScrn, MODE_SAVE);
878	pVBox->savedPal = VBESetGetPaletteData(pVBox->pVbe, FALSE, 0, 256,
879	NULL, FALSE, FALSE);
880
881	/* mi layer - reset the visual list (?)*/
882	miClearVisualTypes();
883	if (!xf86SetDefaultVisual(pScrn, -1))
884	return (FALSE);
885	if (!miSetVisualTypes(pScrn->depth, TrueColorMask,
886	pScrn->rgbBits, TrueColor))
887	return (FALSE);
888	if (!miSetPixmapDepths())
889	return (FALSE);
890
891	/* Needed before we initialise DRI. */
892	pScrn->displayWidth = pScrn->virtualX;
893
894	#ifdef VBOX_DRI
895	pVBox->useDRI = VBOXDRIScreenInit(scrnIndex, pScreen, pVBox);
896	#endif
897
898	/* I checked in the sources, and XFree86 4.2 does seem to support
899	this function for 32bpp. */
900	if (!fbScreenInit(pScreen, pVBox->base,
901	pScrn->virtualX, pScrn->virtualY,
902	pScrn->xDpi, pScrn->yDpi,
903	pScrn->displayWidth, pScrn->bitsPerPixel))
904	return (FALSE);
905
906	/* Fixup RGB ordering */
907	visual = pScreen->visuals + pScreen->numVisuals;
908	while (--visual >= pScreen->visuals) {
909	if ((visual->class \| DynamicClass) == DirectColor) {
910	visual->offsetRed = pScrn->offset.red;
911	visual->offsetGreen = pScrn->offset.green;
912	visual->offsetBlue = pScrn->offset.blue;
913	visual->redMask = pScrn->mask.red;
914	visual->greenMask = pScrn->mask.green;
915	visual->blueMask = pScrn->mask.blue;
916	}
917	}
918
919	/* must be after RGB ordering fixed */
920	fbPictureInit(pScreen, 0, 0);
921
922	xf86SetBlackWhitePixels(pScreen);
923	miInitializeBackingStore(pScreen);
924	xf86SetBackingStore(pScreen);
925
926	/* We need to keep track of whether we are currently switched to a virtual
927	* terminal to know whether a mode set operation is currently safe to do.
928	*/
929	pVBox->vtSwitch = FALSE;
930	/* Initialise DGA. The cast is unfortunately correct - it gets cast back
931	to (unsigned char ) later. /
932	xf86DiDGAInit(pScreen, (unsigned long) pVBox->base);
933
934	/* Initialise randr 1.2 mode-setting functions and set first mode. */
935	if (!xf86CrtcScreenInit(pScreen)) {
936	return FALSE;
937	}
938
939	if (!xf86SetDesiredModes(pScrn)) {
940	return FALSE;
941	}
942
943	/* software cursor */
944	miDCInitialize(pScreen, xf86GetPointerScreenFuncs());
945
946	/* colourmap code */
947	if (!miCreateDefColormap(pScreen))
948	return (FALSE);
949
950	flags = CMAP_RELOAD_ON_MODE_SWITCH;
951
952	if(!vgaHWHandleColormaps(pScreen))
953	return (FALSE);
954
955	/* Hook our observer function ito the chain which is called when
956	* framebuffer access is enabled or disabled in the server, and
957	* assume an initial state of enabled. */
958	pVBox->accessEnabled = TRUE;
959	pVBox->EnableDisableFBAccess = pScrn->EnableDisableFBAccess;
960	pScrn->EnableDisableFBAccess = vboxEnableDisableFBAccess;
961
962	pVBox->CloseScreen = pScreen->CloseScreen;
963	pScreen->CloseScreen = VBOXCloseScreen;
964	pScreen->SaveScreen = xf86SaveScreen;
965
966	/* We probably do want to support power management - even if we just use
967	a dummy function. */
968	xf86DPMSInit(pScreen, xf86DPMSSet, 0);
969
970	/* Report any unused options (only for the first generation) */
971	if (serverGeneration == 1)
972	xf86ShowUnusedOptions(pScrn->scrnIndex, pScrn->options);
973
974	if (vbox_device_available(pVBox) && vbox_open (pScrn, pScreen, pVBox)) {
975	if (vbox_cursor_init(pScreen) != TRUE)
976	xf86DrvMsg(scrnIndex, X_ERROR,
977	"Unable to start the VirtualBox mouse pointer integration with the host system.\n");
978	if (vboxEnableVbva(pScrn) == TRUE)
979	xf86DrvMsg(scrnIndex, X_INFO,
980	"The VBox video extensions are now enabled.\n");
981	vboxEnableGraphicsCap(pVBox);
982	}
983
984	#ifdef VBOX_DRI
985	if (pVBox->useDRI)
986	pVBox->useDRI = VBOXDRIFinishScreenInit(pScreen);
987	#endif
988	return (TRUE);
989	}
990
991	static Bool
992	VBOXEnterVT(int scrnIndex, int flags)
993	{
994	ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
995	VBOXPtr pVBox = VBOXGetRec(pScrn);
996	bool rc;
997
998	TRACE_ENTRY();
999	pVBox->vtSwitch = FALSE;
1000	#ifdef VBOX_DRI
1001	if (pVBox->useDRI)
1002	DRIUnlock(screenInfo.screens[scrnIndex]);
1003	#endif
1004	rc = xf86SetDesiredModes(pScrn);
1005	TRACE_LOG("returning %s\n", rc ? "TRUE" : "FALSE");
1006	return rc;
1007	}
1008
1009	static void
1010	VBOXLeaveVT(int scrnIndex, int flags)
1011	{
1012	ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
1013	VBOXPtr pVBox = VBOXGetRec(pScrn);
1014
1015	TRACE_ENTRY();
1016	pVBox->vtSwitch = TRUE;
1017	VBOXSaveRestore(pScrn, MODE_RESTORE);
1018	if (vbox_device_available(pVBox))
1019	{
1020	if (pVBox->useVbva == TRUE)
1021	vboxDisableVbva(pScrn);
1022	vboxDisableGraphicsCap(pVBox);
1023	}
1024	#ifdef VBOX_DRI
1025	if (pVBox->useDRI)
1026	DRILock(screenInfo.screens[scrnIndex], 0);
1027	#endif
1028	TRACE_EXIT();
1029	}
1030
1031	static Bool
1032	VBOXCloseScreen(int scrnIndex, ScreenPtr pScreen)
1033	{
1034	ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
1035	VBOXPtr pVBox = VBOXGetRec(pScrn);
1036
1037	#ifdef VBOX_DRI
1038	if (pVBox->useDRI)
1039	VBOXDRICloseScreen(pScreen, pVBox);
1040	pVBox->useDRI = false;
1041	#endif
1042
1043	if (vbox_device_available(pVBox))
1044	{
1045	if (TRUE == pVBox->useVbva)
1046	vboxDisableVbva(pScrn);
1047	vboxDisableGraphicsCap(pVBox);
1048	}
1049	if (pScrn->vtSema) {
1050	VBOXSaveRestore(xf86Screens[scrnIndex], MODE_RESTORE);
1051	if (pVBox->savedPal)
1052	VBESetGetPaletteData(pVBox->pVbe, TRUE, 0, 256,
1053	pVBox->savedPal, FALSE, TRUE);
1054	VBOXUnmapVidMem(pScrn);
1055	}
1056	pScrn->vtSema = FALSE;
1057
1058	/* Destroy the VGA hardware record */
1059	vgaHWFreeHWRec(pScrn);
1060
1061	/* And do additional bits which are separate for historical reasons */
1062	vbox_close(pScrn, pVBox);
1063
1064	/* Remove our observer functions from the X server call chains. */
1065	pScrn->EnableDisableFBAccess = pVBox->EnableDisableFBAccess;
1066	pScreen->CloseScreen = pVBox->CloseScreen;
1067	return pScreen->CloseScreen(scrnIndex, pScreen);
1068	}
1069
1070	/**
1071	* Quoted from "How to add an (S)VGA driver to XFree86"
1072	* (http://www.xfree86.org/3.3.6/VGADriver.html):
1073	*
1074	* The ValidMode() function is required. It is used to check for any
1075	* chipset-dependent reasons why a graphics mode might not be valid. It gets
1076	* called by higher levels of the code after the Probe() stage. In many cases
1077	* no special checking will be required and this function will simply return
1078	* TRUE always.
1079	*
1080	* Note: we check here that our generated video modes fulfil the X server's
1081	* criteria for the monitor, since this can otherwise cause problems in
1082	* randr 1.2.
1083	*/
1084	static ModeStatus
1085	VBOXValidMode(int scrn, DisplayModePtr p, Bool flag, int pass)
1086	{
1087	static int warned = 0;
1088	ScrnInfoPtr pScrn = xf86Screens[scrn];
1089	MonPtr mon = pScrn->monitor;
1090	ModeStatus ret = MODE_BAD;
1091	DisplayModePtr mode;
1092	float v;
1093
1094	TRACE_LOG("HDisplay=%d, VDisplay=%d, flag=%s, pass=%d\n",
1095	p->HDisplay, p->VDisplay, flag ? "TRUE" : "FALSE", pass);
1096	if (pass != MODECHECK_FINAL) {
1097	if (!warned) {
1098	xf86DrvMsg(scrn, X_WARNING, "VBOXValidMode called unexpectedly\n");
1099	warned = 1;
1100	}
1101	}
1102	#if 0
1103	/*
1104	* First off, if this isn't a mode we handed to the server (ie,
1105	* M_T_BUILTIN), then we reject it out of hand.
1106	*/
1107	if (!(p->type & M_T_BUILTIN))
1108	return MODE_NOMODE;
1109	#endif
1110	/*
1111	* Finally, walk through the vsync rates 1Hz at a time looking for a mode
1112	* that will fit. This is assuredly a terrible way to do this, but
1113	* there's no obvious method for computing a mode of a given size that
1114	* will pass xf86CheckModeForMonitor.
1115	*/
1116	for (v = mon->vrefresh[0].lo; v <= mon->vrefresh[0].hi; v++) {
1117	mode = xf86CVTMode(p->HDisplay, p->VDisplay, v, 0, 0);
1118	ret = xf86CheckModeForMonitor(mode, mon);
1119	free(mode);
1120	if (ret == MODE_OK)
1121	break;
1122	}
1123
1124	if (ret != MODE_OK)
1125	{
1126	xf86DrvMsg(scrn, X_WARNING, "Graphics mode %s rejected by the X server\n", p->name);
1127	}
1128	TRACE_LOG("returning %d\n", ret);
1129	return ret;
1130	}
1131
1132	static Bool
1133	VBOXSwitchMode(int scrnIndex, DisplayModePtr pMode, int flags)
1134	{
1135	ScrnInfoPtr pScrn;
1136	VBOXPtr pVBox;
1137	Bool rc;
1138
1139	TRACE_LOG("HDisplay=%d, VDisplay=%d\n", pMode->HDisplay, pMode->VDisplay);
1140	pScrn = xf86Screens[scrnIndex]; /* Why does X have three ways of referring to the screen? */
1141	pVBox = VBOXGetRec(pScrn);
1142	/* We want to disable access to the framebuffer before switching mode.
1143	* After doing the switch, we allow access if it was allowed before. */
1144	if (pVBox->accessEnabled)
1145	pVBox->EnableDisableFBAccess(scrnIndex, FALSE);
1146	rc = xf86SetSingleMode(pScrn, pMode, 0);
1147	if (pVBox->accessEnabled)
1148	pVBox->EnableDisableFBAccess(scrnIndex, TRUE);
1149	TRACE_LOG("returning %s\n", rc ? "TRUE" : "FALSE");
1150	return rc;
1151	}
1152
1153	/* Set a graphics mode. Poke the required values into registers, enable
1154	guest-host acceleration functions and tell the host we support advanced
1155	graphics functions. */
1156	static Bool
1157	VBOXSetMode(ScrnInfoPtr pScrn, DisplayModePtr pMode)
1158	{
1159	VBOXPtr pVBox;
1160	Bool rc = TRUE;
1161
1162	int bpp = pScrn->depth == 24 ? 32 : 16;
1163	TRACE_LOG("HDisplay=%d, VDisplay=%d, displayWidth=%d\n",
1164	pMode->HDisplay, pMode->VDisplay, pScrn->displayWidth);
1165	pVBox = VBOXGetRec(pScrn);
1166	/* Don't fiddle with the hardware if we are switched
1167	* to a virtual terminal. */
1168	if (!pVBox->vtSwitch)
1169	{
1170	if ( vbox_device_available(pVBox)
1171	&& (TRUE == pVBox->useVbva)
1172	&& (vboxDisableVbva(pScrn) != TRUE)
1173	) /* This would be bad. */
1174	rc = FALSE;
1175	if (rc)
1176	{
1177	/* Disable linear framebuffer mode before making changes to the resolution. */
1178	outw(VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_ENABLE);
1179	outw(VBE_DISPI_IOPORT_DATA, VBE_DISPI_DISABLED);
1180	/* Unlike the resolution, the depth is fixed for a given screen
1181	for the lifetime of the X session. */
1182	outw(VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_BPP);
1183	outw(VBE_DISPI_IOPORT_DATA, bpp);
1184	/* HDisplay and VDisplay are actually monitor information about
1185	the display part of the scanlines. */
1186	outw(VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_XRES);
1187	outw(VBE_DISPI_IOPORT_DATA, pMode->HDisplay);
1188	outw(VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_YRES);
1189	outw(VBE_DISPI_IOPORT_DATA, pMode->VDisplay);
1190	/* Set the virtual resolution. We are still using VESA to control
1191	the virtual offset. */
1192	outw(VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_VIRT_WIDTH);
1193	outw(VBE_DISPI_IOPORT_DATA, pScrn->displayWidth);
1194	/* Enable linear framebuffer mode. */
1195	outw(VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_ENABLE);
1196	outw(VBE_DISPI_IOPORT_DATA,
1197	VBE_DISPI_ENABLED \| VBE_DISPI_LFB_ENABLED);
1198	/* Enable acceleration and tell the host we support graphics */
1199	if (vbox_device_available(pVBox))
1200	{
1201	if ((TRUE == pVBox->useVbva) && (vboxEnableVbva(pScrn) != TRUE))
1202	/* Bad but not fatal */
1203	pVBox->useVbva = FALSE;
1204	vboxEnableGraphicsCap(pVBox);
1205	}
1206	}
1207	}
1208	TRACE_LOG("returning %s\n", rc ? "TRUE" : "FALSE");
1209	return rc;
1210	}
1211
1212	static void
1213	VBOXAdjustFrame(int scrnIndex, int x, int y, int flags)
1214	{
1215	VBOXPtr pVBox = VBOXGetRec(xf86Screens[scrnIndex]);
1216	ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
1217
1218	TRACE_ENTRY();
1219	/* Don't fiddle with the hardware if we are switched
1220	* to a virtual terminal. */
1221	if (!pVBox->vtSwitch) {
1222	pVBox->viewportX = x;
1223	pVBox->viewportY = y;
1224	/* If VBVA is enabled the graphics card will not notice the change. */
1225	if (pVBox->useVbva == TRUE)
1226	vboxDisableVbva(pScrn);
1227	VBESetDisplayStart(pVBox->pVbe, x, y, TRUE);
1228	if (pVBox->useVbva == TRUE)
1229	vboxEnableVbva(pScrn);
1230	}
1231	TRACE_EXIT();
1232	}
1233
1234	static void
1235	VBOXFreeScreen(int scrnIndex, int flags)
1236	{
1237	VBOXFreeRec(xf86Screens[scrnIndex]);
1238	}
1239
1240	static Bool
1241	VBOXMapVidMem(ScrnInfoPtr pScrn)
1242	{
1243	VBOXPtr pVBox = VBOXGetRec(pScrn);
1244	Bool rc = TRUE;
1245
1246	TRACE_ENTRY();
1247	if (!pVBox->base)
1248	{
1249	#ifdef PCIACCESS
1250	(void) pci_device_map_range(pVBox->pciInfo,
1251	pScrn->memPhysBase,
1252	pVBox->mapSize,
1253	PCI_DEV_MAP_FLAG_WRITABLE,
1254	& pVBox->base);
1255	#else
1256	pVBox->base = xf86MapPciMem(pScrn->scrnIndex,
1257	VIDMEM_FRAMEBUFFER,
1258	pVBox->pciTag, pScrn->memPhysBase,
1259	(unsigned) pVBox->mapSize);
1260	#endif
1261	if (pVBox->base)
1262	{
1263	/* We need this for saving/restoring textmode */
1264	VGAHWPTR(pScrn)->IOBase = pScrn->domainIOBase;
1265	rc = vgaHWMapMem(pScrn);
1266	}
1267	else
1268	rc = FALSE;
1269	}
1270	TRACE_LOG("returning %s\n", rc ? "TRUE" : "FALSE");
1271	return rc;
1272	}
1273
1274	static void
1275	VBOXUnmapVidMem(ScrnInfoPtr pScrn)
1276	{
1277	VBOXPtr pVBox = VBOXGetRec(pScrn);
1278
1279	TRACE_ENTRY();
1280	if (pVBox->base == NULL)
1281	return;
1282
1283	#ifdef PCIACCESS
1284	(void) pci_device_unmap_range(pVBox->pciInfo,
1285	pVBox->base,
1286	pVBox->mapSize);
1287	#else
1288	xf86UnMapVidMem(pScrn->scrnIndex, pVBox->base,
1289	(unsigned) pVBox->mapSize);
1290	#endif
1291	vgaHWUnmapMem(pScrn);
1292	pVBox->base = NULL;
1293	TRACE_EXIT();
1294	}
1295
1296
1297	Bool
1298	VBOXSaveRestore(ScrnInfoPtr pScrn, vbeSaveRestoreFunction function)
1299	{
1300	VBOXPtr pVBox;
1301	Bool rc = TRUE;
1302
1303	TRACE_ENTRY();
1304	if (MODE_QUERY < 0 \|\| function > MODE_RESTORE)
1305	rc = FALSE;
1306
1307	if (rc)
1308	{
1309	pVBox = VBOXGetRec(pScrn);
1310
1311	/* Query amount of memory to save state */
1312	if (function == MODE_QUERY \|\|
1313	(function == MODE_SAVE && pVBox->state == NULL))
1314	{
1315
1316	/* Make sure we save at least this information in case of failure */
1317	(void)VBEGetVBEMode(pVBox->pVbe, &pVBox->stateMode);
1318	vgaHWSaveFonts(pScrn, &pVBox->vgaRegs);
1319
1320	if (!VBESaveRestore(pVBox->pVbe,function,(pointer)&pVBox->state,
1321	&pVBox->stateSize,&pVBox->statePage)
1322	)
1323	rc = FALSE;
1324	}
1325	}
1326	if (rc)
1327	{
1328	/* Save/Restore Super VGA state */
1329	if (function != MODE_QUERY) {
1330
1331	if (function == MODE_RESTORE)
1332	memcpy(pVBox->state, pVBox->pstate,
1333	(unsigned) pVBox->stateSize);
1334
1335	if ( (rc = VBESaveRestore(pVBox->pVbe,function,
1336	(pointer)&pVBox->state,
1337	&pVBox->stateSize,&pVBox->statePage)
1338	)
1339	&& (function == MODE_SAVE)
1340	)
1341	{
1342	/* don't rely on the memory not being touched */
1343	if (pVBox->pstate == NULL)
1344	pVBox->pstate = malloc(pVBox->stateSize);
1345	memcpy(pVBox->pstate, pVBox->state,
1346	(unsigned) pVBox->stateSize);
1347	}
1348
1349	if (function == MODE_RESTORE)
1350	{
1351	VBESetVBEMode(pVBox->pVbe, pVBox->stateMode, NULL);
1352	vgaHWRestoreFonts(pScrn, &pVBox->vgaRegs);
1353	}
1354	}
1355	}
1356	TRACE_LOG("returning %s\n", rc ? "TRUE" : "FALSE");
1357	return rc;
1358	}

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source: vbox/trunk/src/VBox/Additions/x11/vboxvideo/vboxvideo_13.c@ 34575

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