vboxvideo.c revision b2e90826ea719b22452d1ff7b977d4f40995b428
/* $Id$ */
/** @file
*
* Linux Additions X11 graphics driver
*/
/*
* Copyright (C) 2006-2010 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
* --------------------------------------------------------------------
*
* This code is based on:
*
* X11 VESA driver
*
* Copyright (c) 2000 by Conectiva S.A. (http://www.conectiva.com)
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* CONECTIVA LINUX BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Except as contained in this notice, the name of Conectiva Linux shall
* not be used in advertising or otherwise to promote the sale, use or other
* dealings in this Software without prior written authorization from
* Conectiva Linux.
*
* Authors: Paulo César Pereira de Andrade <pcpa@conectiva.com.br>
*/
#ifdef XORG_7X
# include "xorg-server.h"
# include <string.h>
#endif
#include "vboxvideo.h"
#include "version-generated.h"
#include "product-generated.h"
#include <xf86.h>
/* All drivers initialising the SW cursor need this */
#include "mipointer.h"
/* All drivers implementing backing store need this */
#include "mibstore.h"
/* Colormap handling */
#include "micmap.h"
#include "xf86cmap.h"
/* DPMS */
/* #define DPMS_SERVER
#include "extensions/dpms.h" */
/* VGA hardware functions for setting and restoring text mode */
#include "vgaHW.h"
#ifdef VBOXVIDEO_13
/* X.org 1.3+ mode setting */
# define _HAVE_STRING_ARCH_strsep /* bits/string2.h, __strsep_1c. */
# include "xf86Crtc.h"
# include "xf86Modes.h"
#endif
/* Mandatory functions */
static const OptionInfoRec * VBOXAvailableOptions(int chipid, int busid);
static void VBOXIdentify(int flags);
#ifndef PCIACCESS
static Bool VBOXProbe(DriverPtr drv, int flags);
#else
static Bool VBOXPciProbe(DriverPtr drv, int entity_num,
struct pci_device *dev, intptr_t match_data);
#endif
static Bool VBOXPreInit(ScrnInfoPtr pScrn, int flags);
static Bool VBOXScreenInit(int Index, ScreenPtr pScreen, int argc,
char **argv);
static Bool VBOXEnterVT(int scrnIndex, int flags);
static void VBOXLeaveVT(int scrnIndex, int flags);
static Bool VBOXCloseScreen(int scrnIndex, ScreenPtr pScreen);
static Bool VBOXSaveScreen(ScreenPtr pScreen, int mode);
static Bool VBOXSwitchMode(int scrnIndex, DisplayModePtr pMode, int flags);
static Bool VBOXSetMode(ScrnInfoPtr pScrn, unsigned cDisplay, unsigned cWidth,
unsigned cHeight, int x, int y);
static void VBOXAdjustFrame(int scrnIndex, int x, int y, int flags);
static void VBOXFreeScreen(int scrnIndex, int flags);
static void VBOXFreeRec(ScrnInfoPtr pScrn);
static void VBOXDisplayPowerManagementSet(ScrnInfoPtr pScrn, int mode,
int flags);
/* locally used functions */
static Bool VBOXMapVidMem(ScrnInfoPtr pScrn);
static void VBOXUnmapVidMem(ScrnInfoPtr pScrn);
static Bool VBOXSaveRestore(ScrnInfoPtr pScrn,
vbeSaveRestoreFunction function);
static Bool VBOXAdjustScreenPixmap(ScrnInfoPtr pScrn, int width, int height);
enum GenericTypes
{
CHIP_VBOX_GENERIC
};
#ifdef PCIACCESS
static const struct pci_id_match vbox_device_match[] = {
{
VBOX_VENDORID, VBOX_DEVICEID, PCI_MATCH_ANY, PCI_MATCH_ANY,
0, 0, 0
},
{ 0, 0, 0 },
};
#endif
/* Supported chipsets */
static SymTabRec VBOXChipsets[] =
{
{VBOX_DEVICEID, "vbox"},
{-1, NULL}
};
static PciChipsets VBOXPCIchipsets[] = {
{ VBOX_DEVICEID, VBOX_DEVICEID, RES_SHARED_VGA },
{ -1, -1, RES_UNDEFINED },
};
/*
* This contains the functions needed by the server after loading the
* driver module. It must be supplied, and gets added the driver list by
* the Module Setup function in the dynamic case. In the static case a
* reference to this is compiled in, and this requires that the name of
* this DriverRec be an upper-case version of the driver name.
*/
#ifdef XORG_7X
_X_EXPORT
#endif
DriverRec VBOXVIDEO = {
VBOX_VERSION,
VBOX_DRIVER_NAME,
VBOXIdentify,
#ifdef PCIACCESS
NULL,
#else
VBOXProbe,
#endif
VBOXAvailableOptions,
NULL,
0,
#ifdef XORG_7X
NULL,
#endif
#ifdef PCIACCESS
vbox_device_match,
VBOXPciProbe
#endif
};
/* No options for now */
static const OptionInfoRec VBOXOptions[] = {
{ -1, NULL, OPTV_NONE, {0}, FALSE }
};
#ifndef XORG_7X
/*
* List of symbols from other modules that this module references. This
* list is used to tell the loader that it is OK for symbols here to be
* unresolved providing that it hasn't been told that they haven't been
* told that they are essential via a call to xf86LoaderReqSymbols() or
* xf86LoaderReqSymLists(). The purpose is this is to avoid warnings about
* unresolved symbols that are not required.
*/
static const char *fbSymbols[] = {
"fbPictureInit",
"fbScreenInit",
NULL
};
static const char *shadowfbSymbols[] = {
"ShadowFBInit2",
NULL
};
static const char *vbeSymbols[] = {
"VBEExtendedInit",
"VBEFindSupportedDepths",
"VBEGetModeInfo",
"VBEGetVBEInfo",
"VBEGetVBEMode",
"VBEPrintModes",
"VBESaveRestore",
"VBESetDisplayStart",
"VBESetGetDACPaletteFormat",
"VBESetGetLogicalScanlineLength",
"VBESetGetPaletteData",
"VBESetModeNames",
"VBESetModeParameters",
"VBESetVBEMode",
"VBEValidateModes",
"vbeDoEDID",
"vbeFree",
NULL
};
static const char *ramdacSymbols[] = {
"xf86InitCursor",
"xf86CreateCursorInfoRec",
NULL
};
static const char *vgahwSymbols[] = {
"vgaHWGetHWRec",
"vgaHWHandleColormaps",
"vgaHWFreeHWRec",
"vgaHWMapMem",
"vgaHWUnmapMem",
"vgaHWSaveFonts",
"vgaHWRestoreFonts",
"vgaHWGetIndex",
"vgaHWSaveScreen",
"vgaHWDPMSSet",
NULL
};
#endif /* !XORG_7X */
static VBOXPtr
VBOXGetRec(ScrnInfoPtr pScrn)
{
if (!pScrn->driverPrivate)
{
pScrn->driverPrivate = calloc(sizeof(VBOXRec), 1);
}
return ((VBOXPtr)pScrn->driverPrivate);
}
static void
VBOXFreeRec(ScrnInfoPtr pScrn)
{
VBOXPtr pVBox = VBOXGetRec(pScrn);
free(pVBox->savedPal);
free(pVBox->fonts);
free(pScrn->driverPrivate);
pScrn->driverPrivate = NULL;
}
#ifdef VBOXVIDEO_13
/* X.org 1.3+ mode-setting support ******************************************/
/* For descriptions of these functions and structures, see
hw/xfree86/modes/xf86Crtc.h and hw/xfree86/modes/xf86Modes.h in the
X.Org source tree. */
static const xf86CrtcConfigFuncsRec VBOXCrtcConfigFuncs = {
VBOXAdjustScreenPixmap
};
static void
vbox_crtc_dpms(xf86CrtcPtr crtc, int mode)
{ (void) crtc; (void) mode; }
static Bool
vbox_crtc_lock (xf86CrtcPtr crtc)
{ (void) crtc; return FALSE; }
static Bool
vbox_crtc_mode_fixup (xf86CrtcPtr crtc, DisplayModePtr mode,
DisplayModePtr adjusted_mode)
{ (void) crtc; (void) mode; (void) adjusted_mode; return TRUE; }
static void
vbox_crtc_stub (xf86CrtcPtr crtc)
{ (void) crtc; }
static void
vbox_crtc_mode_set (xf86CrtcPtr crtc, DisplayModePtr mode,
DisplayModePtr adjusted_mode, int x, int y)
{
(void) mode;
VBOXPtr pVBox = VBOXGetRec(crtc->scrn);
int bpp = crtc->scrn->depth == 24 ? 32 : 16;
TRACE_LOG("name=%s, HDisplay=%d, VDisplay=%d, x=%d, y=%d\n", adjusted_mode->name,
adjusted_mode->HDisplay, adjusted_mode->VDisplay, x, y);
VBOXSetMode(crtc->scrn, (uint32_t)crtc->driver_private,
adjusted_mode->HDisplay, adjusted_mode->VDisplay, x, y);
/* Don't remember any modes set while we are seamless, as they are
* just temporary. */
if (!vboxGuestIsSeamless(crtc->scrn))
vboxSaveVideoMode(crtc->scrn, adjusted_mode->HDisplay,
adjusted_mode->VDisplay, crtc->scrn->bitsPerPixel);
}
static void
vbox_crtc_gamma_set (xf86CrtcPtr crtc, CARD16 *red,
CARD16 *green, CARD16 *blue, int size)
{ (void) crtc; (void) red; (void) green; (void) blue; (void) size; }
static void *
vbox_crtc_shadow_allocate (xf86CrtcPtr crtc, int width, int height)
{ (void) crtc; (void) width; (void) height; return NULL; }
static const xf86CrtcFuncsRec VBOXCrtcFuncs = {
.dpms = vbox_crtc_dpms,
.save = NULL, /* These two are never called by the server. */
.restore = NULL,
.lock = vbox_crtc_lock,
.unlock = NULL, /* This will not be invoked if lock returns FALSE. */
.mode_fixup = vbox_crtc_mode_fixup,
.prepare = vbox_crtc_stub,
.mode_set = vbox_crtc_mode_set,
.commit = vbox_crtc_stub,
.gamma_set = vbox_crtc_gamma_set,
.shadow_allocate = vbox_crtc_shadow_allocate,
.shadow_create = NULL, /* These two should not be invoked if allocate
returns NULL. */
.shadow_destroy = NULL,
.set_cursor_colors = NULL, /* We are still using the old cursor API. */
.set_cursor_position = NULL,
.show_cursor = NULL,
.hide_cursor = NULL,
.load_cursor_argb = NULL,
.destroy = vbox_crtc_stub
};
static void
vbox_output_stub (xf86OutputPtr output)
{ (void) output; }
static void
vbox_output_dpms (xf86OutputPtr output, int mode)
{ (void) output; (void) mode; }
static int
vbox_output_mode_valid (xf86OutputPtr output, DisplayModePtr mode)
{
ScrnInfoPtr pScrn = output->scrn;
int rc = MODE_OK;
TRACE_LOG("HDisplay=%d, VDisplay=%d\n", mode->HDisplay, mode->VDisplay);
/* We always like modes specified by the user in the configuration
* file and modes requested by the host, as doing otherwise is likely to
* annoy people. */
if ( !(mode->type & M_T_USERDEF)
&& !(mode->type & M_T_PREFERRED)
&& vbox_device_available(VBOXGetRec(pScrn))
&& !vboxHostLikesVideoMode(pScrn, mode->HDisplay, mode->VDisplay,
pScrn->bitsPerPixel)
)
rc = MODE_BAD;
TRACE_LOG("returning %s\n", MODE_OK == rc ? "MODE_OK" : "MODE_BAD");
return rc;
}
static Bool
vbox_output_mode_fixup (xf86OutputPtr output, DisplayModePtr mode,
DisplayModePtr adjusted_mode)
{ (void) output; (void) mode; (void) adjusted_mode; return TRUE; }
static void
vbox_output_mode_set (xf86OutputPtr output, DisplayModePtr mode,
DisplayModePtr adjusted_mode)
{ (void) output; (void) mode; (void) adjusted_mode; }
/* A virtual monitor is always connected. */
static xf86OutputStatus
vbox_output_detect (xf86OutputPtr output)
{
(void) output;
return XF86OutputStatusConnected;
}
static void
vbox_output_add_mode (VBOXPtr pVBox, DisplayModePtr *pModes,
const char *pszName, int x, int y,
Bool isPreferred, Bool isUserDef)
{
TRACE_LOG("pszName=%s, x=%d, y=%d\n", pszName, x, y);
DisplayModePtr pMode = xnfcalloc(1, sizeof(DisplayModeRec));
pMode->status = MODE_OK;
/* We don't ask the host whether it likes user defined modes,
* as we assume that the user really wanted that mode. */
pMode->type = isUserDef ? M_T_USERDEF : M_T_BUILTIN;
if (isPreferred)
pMode->type |= M_T_PREFERRED;
/* Older versions of VBox only support screen widths which are a multiple
* of 8 */
if (pVBox->fAnyX)
pMode->HDisplay = x;
else
pMode->HDisplay = x & ~7;
pMode->HSyncStart = pMode->HDisplay + 2;
pMode->HSyncEnd = pMode->HDisplay + 4;
pMode->HTotal = pMode->HDisplay + 6;
pMode->VDisplay = y;
pMode->VSyncStart = pMode->VDisplay + 2;
pMode->VSyncEnd = pMode->VDisplay + 4;
pMode->VTotal = pMode->VDisplay + 6;
pMode->Clock = pMode->HTotal * pMode->VTotal * 60 / 1000; /* kHz */
if (NULL == pszName) {
xf86SetModeDefaultName(pMode);
} else {
pMode->name = xnfstrdup(pszName);
}
*pModes = xf86ModesAdd(*pModes, pMode);
}
static DisplayModePtr
vbox_output_get_modes (xf86OutputPtr output)
{
bool rc;
unsigned i;
DisplayModePtr pModes = NULL;
ScrnInfoPtr pScrn = output->scrn;
VBOXPtr pVBox = VBOXGetRec(pScrn);
TRACE_ENTRY();
if (vbox_device_available(pVBox))
{
uint32_t x, y, bpp, iScreen;
rc = vboxGetDisplayChangeRequest(pScrn, &x, &y, &bpp, &iScreen);
/* @todo - check the display number once we support multiple displays. */
/* If we don't find a display request, see if we have a saved hint
* from a previous session. */
if (!rc || (0 == x) || (0 == y))
rc = vboxRetrieveVideoMode(pScrn, &x, &y, &bpp);
if (rc && (0 != x) && (0 != y))
vbox_output_add_mode(pVBox, &pModes, NULL, x, y, TRUE, FALSE);
}
/* Also report any modes the user may have requested in the xorg.conf
* configuration file. */
for (i = 0; pScrn->display->modes[i] != NULL; i++)
{
int x, y;
if (2 == sscanf(pScrn->display->modes[i], "%dx%d", &x, &y))
vbox_output_add_mode(pVBox, &pModes, pScrn->display->modes[i], x, y,
FALSE, TRUE);
}
TRACE_EXIT();
return pModes;
}
#ifdef RANDR_12_INTERFACE
/* We don't yet have mutable properties, whatever they are. */
static Bool
vbox_output_set_property(xf86OutputPtr output, Atom property,
RRPropertyValuePtr value)
{ (void) output; (void) property; (void) value; return FALSE; }
#endif
static const xf86OutputFuncsRec VBOXOutputFuncs = {
.create_resources = vbox_output_stub,
.dpms = vbox_output_dpms,
.save = NULL, /* These two are never called by the server. */
.restore = NULL,
.mode_valid = vbox_output_mode_valid,
.mode_fixup = vbox_output_mode_fixup,
.prepare = vbox_output_stub,
.commit = vbox_output_stub,
.mode_set = vbox_output_mode_set,
.detect = vbox_output_detect,
.get_modes = vbox_output_get_modes,
#ifdef RANDR_12_INTERFACE
.set_property = vbox_output_set_property,
#endif
.destroy = vbox_output_stub
};
#endif /* VBOXVIDEO_13 */
#ifdef XFree86LOADER
/* Module loader interface */
static MODULESETUPPROTO(vboxSetup);
static XF86ModuleVersionInfo vboxVersionRec =
{
VBOX_DRIVER_NAME,
VBOX_VENDOR,
MODINFOSTRING1,
MODINFOSTRING2,
#ifdef XORG_7X
XORG_VERSION_CURRENT,
#else
XF86_VERSION_CURRENT,
#endif
1, /* Module major version. Xorg-specific */
0, /* Module minor version. Xorg-specific */
1, /* Module patchlevel. Xorg-specific */
ABI_CLASS_VIDEODRV, /* This is a video driver */
ABI_VIDEODRV_VERSION,
MOD_CLASS_VIDEODRV,
{0, 0, 0, 0}
};
/*
* This data is accessed by the loader. The name must be the module name
* followed by "ModuleData".
*/
#ifdef XORG_7X
_X_EXPORT
#endif
XF86ModuleData vboxvideoModuleData = { &vboxVersionRec, vboxSetup, NULL };
static pointer
vboxSetup(pointer Module, pointer Options, int *ErrorMajor, int *ErrorMinor)
{
static Bool Initialised = FALSE;
if (!Initialised)
{
Initialised = TRUE;
#ifdef PCIACCESS
xf86AddDriver(&VBOXVIDEO, Module, HaveDriverFuncs);
#else
xf86AddDriver(&VBOXVIDEO, Module, 0);
#endif
#ifndef XORG_7X
LoaderRefSymLists(fbSymbols,
shadowfbSymbols,
vbeSymbols,
ramdacSymbols,
vgahwSymbols,
NULL);
#endif
xf86Msg(X_CONFIG, "Load address of symbol \"VBOXVIDEO\" is %p\n",
(void *)&VBOXVIDEO);
return (pointer)TRUE;
}
if (ErrorMajor)
*ErrorMajor = LDR_ONCEONLY;
return (NULL);
}
#endif /* XFree86Loader defined */
static const OptionInfoRec *
VBOXAvailableOptions(int chipid, int busid)
{
return (VBOXOptions);
}
static void
VBOXIdentify(int flags)
{
xf86PrintChipsets(VBOX_NAME, "guest driver for VirtualBox", VBOXChipsets);
}
/*
* This function is called once, at the start of the first server generation to
* do a minimal probe for supported hardware.
*/
#ifdef PCIACCESS
static Bool
VBOXPciProbe(DriverPtr drv, int entity_num, struct pci_device *dev,
intptr_t match_data)
{
ScrnInfoPtr pScrn;
TRACE_ENTRY();
pScrn = xf86ConfigPciEntity(NULL, 0, entity_num, VBOXPCIchipsets,
NULL, NULL, NULL, NULL, NULL);
if (pScrn != NULL) {
VBOXPtr pVBox = VBOXGetRec(pScrn);
pScrn->driverVersion = VBOX_VERSION;
pScrn->driverName = VBOX_DRIVER_NAME;
pScrn->name = VBOX_NAME;
pScrn->Probe = NULL;
pScrn->PreInit = VBOXPreInit;
pScrn->ScreenInit = VBOXScreenInit;
pScrn->SwitchMode = VBOXSwitchMode;
pScrn->AdjustFrame = VBOXAdjustFrame;
pScrn->EnterVT = VBOXEnterVT;
pScrn->LeaveVT = VBOXLeaveVT;
pScrn->FreeScreen = VBOXFreeScreen;
pVBox->pciInfo = dev;
}
TRACE_LOG("returning %s\n", BOOL_STR(pScrn != NULL));
return (pScrn != NULL);
}
#endif
#ifndef PCIACCESS
static Bool
VBOXProbe(DriverPtr drv, int flags)
{
Bool foundScreen = FALSE;
int numDevSections;
GDevPtr *devSections;
/*
* Find the config file Device sections that match this
* driver, and return if there are none.
*/
if ((numDevSections = xf86MatchDevice(VBOX_NAME,
&devSections)) <= 0)
return (FALSE);
/* PCI BUS */
if (xf86GetPciVideoInfo()) {
int numUsed;
int *usedChips;
int i;
numUsed = xf86MatchPciInstances(VBOX_NAME, VBOX_VENDORID,
VBOXChipsets, VBOXPCIchipsets,
devSections, numDevSections,
drv, &usedChips);
if (numUsed > 0) {
if (flags & PROBE_DETECT)
foundScreen = TRUE;
else {
for (i = 0; i < numUsed; i++) {
ScrnInfoPtr pScrn = NULL;
/* Allocate a ScrnInfoRec */
if ((pScrn = xf86ConfigPciEntity(pScrn,0,usedChips[i],
VBOXPCIchipsets,NULL,
NULL,NULL,NULL,NULL))) {
pScrn->driverVersion = VBOX_VERSION;
pScrn->driverName = VBOX_DRIVER_NAME;
pScrn->name = VBOX_NAME;
pScrn->Probe = VBOXProbe;
pScrn->PreInit = VBOXPreInit;
pScrn->ScreenInit = VBOXScreenInit;
pScrn->SwitchMode = VBOXSwitchMode;
pScrn->AdjustFrame = VBOXAdjustFrame;
pScrn->EnterVT = VBOXEnterVT;
pScrn->LeaveVT = VBOXLeaveVT;
pScrn->FreeScreen = VBOXFreeScreen;
foundScreen = TRUE;
}
}
}
free(usedChips);
}
}
free(devSections);
return (foundScreen);
}
#endif
/**
* This function hooks into the chain that is called when framebuffer access
* is allowed or disallowed by a call to EnableDisableFBAccess in the server.
* In other words, it observes when the server wishes access to the
* framebuffer to be enabled and when it should be disabled. We need to know
* this because we disable access ourselves during mode switches (presumably
* the server should do this but it doesn't) and want to know whether to
* restore it or not afterwards.
*/
static void
vboxEnableDisableFBAccess(int scrnIndex, Bool enable)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
VBOXPtr pVBox = VBOXGetRec(pScrn);
TRACE_LOG("enable=%s\n", enable ? "TRUE" : "FALSE");
pVBox->accessEnabled = enable;
pVBox->EnableDisableFBAccess(scrnIndex, enable);
TRACE_EXIT();
}
/*
* QUOTE from the XFree86 DESIGN document:
*
* The purpose of this function is to find out all the information
* required to determine if the configuration is usable, and to initialise
* those parts of the ScrnInfoRec that can be set once at the beginning of
* the first server generation.
*
* (...)
*
* This includes probing for video memory, clocks, ramdac, and all other
* HW info that is needed. It includes determining the depth/bpp/visual
* and related info. It includes validating and determining the set of
* video modes that will be used (and anything that is required to
* determine that).
*
* This information should be determined in the least intrusive way
* possible. The state of the HW must remain unchanged by this function.
* Although video memory (including MMIO) may be mapped within this
* function, it must be unmapped before returning.
*
* END QUOTE
*/
static Bool
VBOXPreInit(ScrnInfoPtr pScrn, int flags)
{
VBOXPtr pVBox;
Gamma gzeros = {0.0, 0.0, 0.0};
rgb rzeros = {0, 0, 0};
unsigned DispiId;
TRACE_ENTRY();
/* Are we really starting the server, or is this just a dummy run? */
if (flags & PROBE_DETECT)
return (FALSE);
xf86DrvMsg(pScrn->scrnIndex, X_INFO,
"VirtualBox guest additions video driver version "
VBOX_VERSION_STRING "\n");
/* Get our private data from the ScrnInfoRec structure. */
pVBox = VBOXGetRec(pScrn);
/* Initialise the guest library */
vbox_init(pScrn->scrnIndex, pVBox);
/* Entity information seems to mean bus information. */
pVBox->pEnt = xf86GetEntityInfo(pScrn->entityList[0]);
/* The ramdac module is needed for the hardware cursor. */
if (!xf86LoadSubModule(pScrn, "ramdac"))
return FALSE;
/* We need the vbe module because we use VBE code to save and restore
text mode, in order to keep our code simple. */
if (!xf86LoadSubModule(pScrn, "vbe"))
return (FALSE);
/* The framebuffer module. */
if (xf86LoadSubModule(pScrn, "fb") == NULL)
return (FALSE);
if (!xf86LoadSubModule(pScrn, "shadowfb"))
return FALSE;
if (!xf86LoadSubModule(pScrn, "vgahw"))
return FALSE;
#ifdef VBOX_DRI
/* Load the dri module. */
if (!xf86LoadSubModule(pScrn, "dri"))
return FALSE;
#endif
#ifndef PCIACCESS
if (pVBox->pEnt->location.type != BUS_PCI)
return FALSE;
pVBox->pciInfo = xf86GetPciInfoForEntity(pVBox->pEnt->index);
pVBox->pciTag = pciTag(pVBox->pciInfo->bus,
pVBox->pciInfo->device,
pVBox->pciInfo->func);
#endif
/* Set up our ScrnInfoRec structure to describe our virtual
capabilities to X. */
pScrn->chipset = "vbox";
pScrn->rgbBits = 8;
/* Let's create a nice, capable virtual monitor.
* This *is* still needed, at least for server version 1.3 */
pScrn->monitor = pScrn->confScreen->monitor;
pScrn->monitor->DDC = NULL;
pScrn->monitor->nHsync = 1;
pScrn->monitor->hsync[0].lo = 1;
pScrn->monitor->hsync[0].hi = 10000;
pScrn->monitor->nVrefresh = 1;
pScrn->monitor->vrefresh[0].lo = 1;
pScrn->monitor->vrefresh[0].hi = 100;
pScrn->progClock = TRUE;
/* Using the PCI information caused problems with non-powers-of-two
sized video RAM configurations */
pVBox->cbFramebuffer = inl(VBE_DISPI_IOPORT_DATA);
pScrn->videoRam = pVBox->cbFramebuffer / 1024;
/* Check if the chip restricts horizontal resolution or not. */
outw(VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_ID);
outw(VBE_DISPI_IOPORT_DATA, VBE_DISPI_ID_ANYX);
DispiId = inw(VBE_DISPI_IOPORT_DATA);
if (DispiId == VBE_DISPI_ID_ANYX)
pVBox->fAnyX = TRUE;
else
pVBox->fAnyX = FALSE;
/* Set up clock information that will support all modes we need. */
pScrn->clockRanges = xnfcalloc(sizeof(ClockRange), 1);
pScrn->clockRanges->minClock = 1000;
pScrn->clockRanges->maxClock = 1000000000;
pScrn->clockRanges->clockIndex = -1;
pScrn->clockRanges->ClockMulFactor = 1;
pScrn->clockRanges->ClockDivFactor = 1;
/* Query the host for the preferred colour depth */
{
uint32_t cx = 0, cy = 0, cBits = 0;
vboxGetPreferredMode(pScrn, &cx, &cy, &cBits);
/* We only support 16 and 24 bits depth (i.e. 16 and 32bpp) */
if (cBits != 16)
cBits = 24;
if (!xf86SetDepthBpp(pScrn, cBits, 0, 0, Support32bppFb))
return FALSE;
vboxAddModes(pScrn, cx, cy);
}
if (pScrn->bitsPerPixel != 32 && pScrn->bitsPerPixel != 16)
{
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"The VBox additions only support 16 and 32bpp graphics modes\n");
return FALSE;
}
xf86PrintDepthBpp(pScrn);
#ifdef VBOXVIDEO_13
/* Work around a bug in the original X server modesetting code, which
* took the first valid values set to these two as maxima over the
* server lifetime. */
pScrn->virtualX = 32000;
pScrn->virtualY = 32000;
#else
/* We don't validate with xf86ValidateModes and xf86PruneModes as we
* already know what we like and what we don't. */
pScrn->currentMode = pScrn->modes;
/* Set the right virtual resolution. */
pScrn->virtualX = pScrn->currentMode->HDisplay;
pScrn->virtualY = pScrn->currentMode->VDisplay;
#endif /* !VBOXVIDEO_13 */
/* Needed before we initialise DRI. */
pScrn->displayWidth = pScrn->virtualX;
xf86PrintModes(pScrn);
/* Colour weight - we always call this, since we are always in
truecolour. */
if (!xf86SetWeight(pScrn, rzeros, rzeros))
return (FALSE);
/* visual init */
if (!xf86SetDefaultVisual(pScrn, -1))
return (FALSE);
xf86SetGamma(pScrn, gzeros);
/* Set the DPI. Perhaps we should read this from the host? */
xf86SetDpi(pScrn, 96, 96);
/* Framebuffer-related setup */
pScrn->bitmapBitOrder = BITMAP_BIT_ORDER;
/* VGA hardware initialisation */
if (!vgaHWGetHWRec(pScrn))
return FALSE;
TRACE_EXIT();
return (TRUE);
}
/**
* Dummy function for setting the colour palette, which we actually never
* touch. However, the server still requires us to provide this.
*/
static void
vboxLoadPalette(ScrnInfoPtr pScrn, int numColors, int *indices,
LOCO *colors, VisualPtr pVisual)
{
(void)pScrn; (void) numColors; (void) indices; (void) colors;
(void)pVisual;
}
/*
* QUOTE from the XFree86 DESIGN document:
*
* This is called at the start of each server generation.
*
* (...)
*
* Decide which operations need to be placed under resource access
* control. (...) Map any video memory or other memory regions. (...)
* Save the video card state. (...) Initialise the initial video
* mode.
*
* End QUOTE.
*/
static Bool
VBOXScreenInit(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
VBOXPtr pVBox = VBOXGetRec(pScrn);
VisualPtr visual;
unsigned flags;
TRACE_ENTRY();
/* We make use of the X11 VBE code to save and restore text mode, in
order to keep our code simple. */
if ((pVBox->pVbe = VBEExtendedInit(NULL, pVBox->pEnt->index,
SET_BIOS_SCRATCH
| RESTORE_BIOS_SCRATCH)) == NULL)
return (FALSE);
if (pScrn->memPhysBase == 0) {
#ifdef PCIACCESS
pScrn->memPhysBase = pVBox->pciInfo->regions[0].base_addr;
#else
pScrn->memPhysBase = pVBox->pciInfo->memBase[0];
#endif
pScrn->fbOffset = 0;
}
if (!VBOXMapVidMem(pScrn))
return (FALSE);
/* save current video state */
VBOXSaveRestore(pScrn, MODE_SAVE);
/* mi layer - reset the visual list (?)*/
miClearVisualTypes();
if (!xf86SetDefaultVisual(pScrn, -1))
return (FALSE);
if (!miSetVisualTypes(pScrn->depth, TrueColorMask,
pScrn->rgbBits, TrueColor))
return (FALSE);
if (!miSetPixmapDepths())
return (FALSE);
#ifdef VBOX_DRI
pVBox->useDRI = VBOXDRIScreenInit(scrnIndex, pScreen, pVBox);
#endif
/* I checked in the sources, and XFree86 4.2 does seem to support
this function for 32bpp. */
if (!fbScreenInit(pScreen, pVBox->base,
pScrn->virtualX, pScrn->virtualY,
pScrn->xDpi, pScrn->yDpi,
pScrn->displayWidth, pScrn->bitsPerPixel))
return (FALSE);
/* Fixup RGB ordering */
visual = pScreen->visuals + pScreen->numVisuals;
while (--visual >= pScreen->visuals) {
if ((visual->class | DynamicClass) == DirectColor) {
visual->offsetRed = pScrn->offset.red;
visual->offsetGreen = pScrn->offset.green;
visual->offsetBlue = pScrn->offset.blue;
visual->redMask = pScrn->mask.red;
visual->greenMask = pScrn->mask.green;
visual->blueMask = pScrn->mask.blue;
}
}
/* must be after RGB ordering fixed */
fbPictureInit(pScreen, 0, 0);
xf86SetBlackWhitePixels(pScreen);
miInitializeBackingStore(pScreen);
xf86SetBackingStore(pScreen);
/* We need to keep track of whether we are currently switched to a virtual
* terminal to know whether a mode set operation is currently safe to do.
*/
pVBox->vtSwitch = FALSE;
if (vbox_device_available(pVBox) && vbox_open (pScrn, pScreen, pVBox)) {
vboxEnableVbva(pScrn);
vboxEnableGraphicsCap(pVBox);
}
#ifdef VBOXVIDEO_13
/* Initialise CRTC and output configuration for use with randr1.2. */
xf86CrtcConfigInit(pScrn, &VBOXCrtcConfigFuncs);
{
uint32_t i;
for (i = 0; i < pVBox->cScreens; ++i)
{
char szOutput[256];
/* Setup our virtual CRTCs. */
pVBox->paCrtcs[i] = xf86CrtcCreate(pScrn, &VBOXCrtcFuncs);
pVBox->paCrtcs[i]->driver_private = (void *)i;
/* Set up our virtual outputs. */
snprintf(szOutput, sizeof(szOutput), "VBOX%u", i);
pVBox->paOutputs[i] = xf86OutputCreate(pScrn, &VBOXOutputFuncs,
szOutput);
/* We are not interested in the monitor section in the
* configuration file. */
xf86OutputUseScreenMonitor(pVBox->paOutputs[i], FALSE);
pVBox->paOutputs[i]->possible_crtcs = 1 << i;
pVBox->paOutputs[i]->possible_clones = 0;
TRACE_LOG("Created crtc (%p) and output %s (%p)\n",
(void *)pVBox->paCrtcs[i], szOutput,
(void *)pVBox->paOutputs[i]);
}
}
/* Set a sane minimum and maximum mode size */
xf86CrtcSetSizeRange(pScrn, 64, 64, 32000, 32000);
/* Now create our initial CRTC/output configuration. */
if (!xf86InitialConfiguration(pScrn, TRUE)) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "Initial CRTC configuration failed!\n");
return (FALSE);
}
/* Initialise randr 1.2 mode-setting functions and set first mode.
* Note that the mode won't be usable until the server has resized the
* framebuffer to something reasonable. */
if (!xf86CrtcScreenInit(pScreen)) {
return FALSE;
}
if (!xf86SetDesiredModes(pScrn)) {
return FALSE;
}
#else /* !VBOXVIDEO_13 */
/* set first video mode */
if (!VBOXSetMode(pScrn, 0, pScrn->currentMode->HDisplay,
pScrn->currentMode->VDisplay, pScrn->frameX0,
pScrn->frameY0))
return FALSE;
/* And make sure that a non-current dynamic mode is at the front of the
* list */
vboxWriteHostModes(pScrn, pScrn->currentMode);
#endif /* !VBOXVIDEO_13 */
/* software cursor */
miDCInitialize(pScreen, xf86GetPointerScreenFuncs());
/* colourmap code */
if (!miCreateDefColormap(pScreen))
return (FALSE);
if(!xf86HandleColormaps(pScreen, 256, 8, vboxLoadPalette, NULL, 0))
return (FALSE);
/* Hook our observer function ito the chain which is called when
* framebuffer access is enabled or disabled in the server, and
* assume an initial state of enabled. */
pVBox->accessEnabled = TRUE;
pVBox->EnableDisableFBAccess = pScrn->EnableDisableFBAccess;
pScrn->EnableDisableFBAccess = vboxEnableDisableFBAccess;
pVBox->CloseScreen = pScreen->CloseScreen;
pScreen->CloseScreen = VBOXCloseScreen;
pScreen->SaveScreen = VBOXSaveScreen;
/* We probably do want to support power management - even if we just use
a dummy function. */
xf86DPMSInit(pScreen, VBOXDisplayPowerManagementSet, 0);
/* Report any unused options (only for the first generation) */
if (serverGeneration == 1)
xf86ShowUnusedOptions(pScrn->scrnIndex, pScrn->options);
if (vbox_cursor_init(pScreen) != TRUE)
xf86DrvMsg(scrnIndex, X_ERROR,
"Unable to start the VirtualBox mouse pointer integration with the host system.\n");
#ifdef VBOX_DRI
if (pVBox->useDRI)
pVBox->useDRI = VBOXDRIFinishScreenInit(pScreen);
#endif
return (TRUE);
}
static Bool
VBOXEnterVT(int scrnIndex, int flags)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
VBOXPtr pVBox = VBOXGetRec(pScrn);
TRACE_ENTRY();
pVBox->vtSwitch = FALSE;
#ifdef VBOX_DRI
if (pVBox->useDRI)
DRIUnlock(screenInfo.screens[scrnIndex]);
#endif
#ifdef VBOXVIDEO_13
if (!xf86SetDesiredModes(pScrn))
return FALSE;
#else
if (!VBOXSetMode(pScrn, 0, pScrn->currentMode->HDisplay,
pScrn->currentMode->VDisplay, pScrn->frameX0,
pScrn->frameY0))
return FALSE;
#endif
if (pVBox->fHaveHGSMI)
vboxEnableVbva(pScrn);
return TRUE;
}
static void
VBOXLeaveVT(int scrnIndex, int flags)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
VBOXPtr pVBox = VBOXGetRec(pScrn);
TRACE_ENTRY();
pVBox->vtSwitch = TRUE;
VBOXSaveRestore(pScrn, MODE_RESTORE);
if (pVBox->fHaveHGSMI)
vboxDisableVbva(pScrn);
vboxDisableGraphicsCap(pVBox);
#ifdef VBOX_DRI
if (pVBox->useDRI)
DRILock(screenInfo.screens[scrnIndex], 0);
#endif
TRACE_EXIT();
}
static Bool
VBOXCloseScreen(int scrnIndex, ScreenPtr pScreen)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
VBOXPtr pVBox = VBOXGetRec(pScrn);
#ifdef VBOX_DRI
if (pVBox->useDRI)
VBOXDRICloseScreen(pScreen, pVBox);
pVBox->useDRI = false;
#endif
if (pVBox->fHaveHGSMI)
vboxDisableVbva(pScrn);
vboxDisableGraphicsCap(pVBox);
if (pScrn->vtSema) {
VBOXSaveRestore(xf86Screens[scrnIndex], MODE_RESTORE);
VBOXUnmapVidMem(pScrn);
}
pScrn->vtSema = FALSE;
/* Destroy the VGA hardware record */
vgaHWFreeHWRec(pScrn);
/* And do additional bits which are separate for historical reasons */
vbox_close(pScrn, pVBox);
/* Remove our observer functions from the X server call chains. */
pScrn->EnableDisableFBAccess = pVBox->EnableDisableFBAccess;
pScreen->CloseScreen = pVBox->CloseScreen;
return pScreen->CloseScreen(scrnIndex, pScreen);
}
static Bool
VBOXSwitchMode(int scrnIndex, DisplayModePtr pMode, int flags)
{
ScrnInfoPtr pScrn;
VBOXPtr pVBox;
Bool rc;
TRACE_LOG("HDisplay=%d, VDisplay=%d\n", pMode->HDisplay, pMode->VDisplay);
pScrn = xf86Screens[scrnIndex]; /* Why does X have three ways of referring to the screen? */
pVBox = VBOXGetRec(pScrn);
/* We want to disable access to the framebuffer before switching mode.
* After doing the switch, we allow access if it was allowed before. */
if (pVBox->accessEnabled)
pVBox->EnableDisableFBAccess(scrnIndex, FALSE);
#ifdef VBOXVIDEO_13
rc = xf86SetSingleMode(pScrn, pMode, 0);
#else
rc = VBOXSetMode(pScrn, 0, pMode->HDisplay, pMode->VDisplay,
pScrn->frameX0, pScrn->frameY0);
if (rc)
{
vboxWriteHostModes(pScrn, pMode);
xf86PrintModes(pScrn);
}
if (rc && !vboxGuestIsSeamless(pScrn))
vboxSaveVideoMode(pScrn, pMode->HDisplay, pMode->VDisplay,
pScrn->bitsPerPixel);
#endif
if (pVBox->accessEnabled)
pVBox->EnableDisableFBAccess(scrnIndex, TRUE);
TRACE_LOG("returning %s\n", rc ? "TRUE" : "FALSE");
return rc;
}
/* Set a graphics mode. Poke the required values into registers, enable
guest-host acceleration functions and tell the host we support advanced
graphics functions. */
static Bool
VBOXSetMode(ScrnInfoPtr pScrn, unsigned cDisplay, unsigned cWidth,
unsigned cHeight, int x, int y)
{
VBOXPtr pVBox = VBOXGetRec(pScrn);
Bool rc = TRUE;
uint32_t xRel = cDisplay ? x - pVBox->aScreenLocation[0].x : 0;
uint32_t yRel = cDisplay ? y - pVBox->aScreenLocation[0].y : 0;
int bpp = pScrn->depth == 24 ? 32 : 16;
TRACE_LOG("cDisplay=%u, cWidth=%u, cHeight=%u, x=%d, y=%d, displayWidth=%d\n",
cDisplay, cWidth, cHeight, x, y, pScrn->displayWidth);
/* Don't fiddle with the hardware if we are switched
* to a virtual terminal. */
if (!pVBox->vtSwitch)
{
if (cDisplay == 0)
VBoxVideoSetModeRegisters(cWidth, cHeight, pScrn->displayWidth,
bpp, x, y);
/* Tell the host we support graphics */
if (vbox_device_available(pVBox))
vboxEnableGraphicsCap(pVBox);
}
if ( vbox_device_available(pVBox)
&& (pVBox->fHaveHGSMI)
&& !pVBox->vtSwitch)
VBoxHGSMIProcessDisplayInfo(&pVBox->guestCtx, cDisplay, xRel, yRel,
(y * pScrn->displayWidth + x) * bpp / 8,
pScrn->displayWidth * bpp / 8,
cWidth, cHeight, bpp);
pVBox->aScreenLocation[cDisplay].cx = cWidth;
pVBox->aScreenLocation[cDisplay].cy = cHeight;
pVBox->aScreenLocation[cDisplay].x = x;
pVBox->aScreenLocation[cDisplay].y = y;
TRACE_LOG("returning %s\n", rc ? "TRUE" : "FALSE");
return rc;
}
static Bool VBOXAdjustScreenPixmap(ScrnInfoPtr pScrn, int width, int height)
{
ScreenPtr pScreen = pScrn->pScreen;
PixmapPtr pPixmap = pScreen->GetScreenPixmap(pScreen);
VBOXPtr pVBox = VBOXGetRec(pScrn);
int bpp = pScrn->depth == 24 ? 32 : 16;
TRACE_LOG("width=%d, height=%d\n", width, height);
if ((uint64_t)width * height * bpp / 8 >= pVBox->cbFramebuffer)
{
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"Unable to set up a virtual screen size of %dx%d with %lu of %d Kb of video memory available. Please increase the video memory size.\n",
width, height, pVBox->cbFramebuffer / 1024, pScrn->videoRam);
return FALSE;
}
if (!pPixmap) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"Failed to get the screen pixmap.\n");
return FALSE;
}
pScreen->ModifyPixmapHeader(pPixmap, width, height,
pScrn->depth, bpp, width * bpp / 8,
pVBox->base);
pScrn->virtualX = width;
pScrn->virtualY = height;
pScrn->displayWidth = width;
#ifdef VBOX_DRI
if (pVBox->useDRI)
VBOXDRIUpdateStride(pScrn, pVBox);
#endif
#ifdef VBOXVIDEO_13
/* Write the new values to the hardware */
xf86SetDesiredModes(pScrn);
#else
pScrn->EnableDisableFBAccess(pScrn->scrnIndex, FALSE);
pScrn->EnableDisableFBAccess(pScrn->scrnIndex, TRUE);
#endif
return TRUE;
}
static void
VBOXAdjustFrame(int scrnIndex, int x, int y, int flags)
{
VBOXPtr pVBox = VBOXGetRec(xf86Screens[scrnIndex]);
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
TRACE_ENTRY();
/* Don't fiddle with the hardware if we are switched
* to a virtual terminal. */
VBOXSetMode(pScrn, 0, pVBox->aScreenLocation[0].cx,
pVBox->aScreenLocation[0].cy, x, y);
TRACE_EXIT();
}
static void
VBOXFreeScreen(int scrnIndex, int flags)
{
VBOXFreeRec(xf86Screens[scrnIndex]);
}
static Bool
VBOXMapVidMem(ScrnInfoPtr pScrn)
{
VBOXPtr pVBox = VBOXGetRec(pScrn);
Bool rc = TRUE;
TRACE_ENTRY();
if (!pVBox->base)
{
#ifdef PCIACCESS
(void) pci_device_map_range(pVBox->pciInfo,
pScrn->memPhysBase,
pScrn->videoRam * 1024,
PCI_DEV_MAP_FLAG_WRITABLE,
& pVBox->base);
#else
pVBox->base = xf86MapPciMem(pScrn->scrnIndex,
VIDMEM_FRAMEBUFFER,
pVBox->pciTag, pScrn->memPhysBase,
(unsigned) pScrn->videoRam * 1024);
#endif
if (pVBox->base)
{
/* We need this for saving/restoring textmode */
VGAHWPTR(pScrn)->IOBase = pScrn->domainIOBase;
rc = vgaHWMapMem(pScrn);
}
else
rc = FALSE;
}
TRACE_LOG("returning %s\n", rc ? "TRUE" : "FALSE");
return rc;
}
static void
VBOXUnmapVidMem(ScrnInfoPtr pScrn)
{
VBOXPtr pVBox = VBOXGetRec(pScrn);
TRACE_ENTRY();
if (pVBox->base == NULL)
return;
#ifdef PCIACCESS
(void) pci_device_unmap_range(pVBox->pciInfo,
pVBox->base,
pScrn->videoRam * 1024);
#else
xf86UnMapVidMem(pScrn->scrnIndex, pVBox->base,
(unsigned) pScrn->videoRam * 1024);
#endif
vgaHWUnmapMem(pScrn);
pVBox->base = NULL;
TRACE_EXIT();
}
static Bool
VBOXSaveScreen(ScreenPtr pScreen, int mode)
{
(void)pScreen; (void)mode;
return TRUE;
}
Bool
VBOXSaveRestore(ScrnInfoPtr pScrn, vbeSaveRestoreFunction function)
{
VBOXPtr pVBox;
Bool rc = TRUE;
TRACE_ENTRY();
if (MODE_QUERY < 0 || function > MODE_RESTORE)
rc = FALSE;
if (rc)
{
pVBox = VBOXGetRec(pScrn);
/* Query amount of memory to save state */
if (function == MODE_QUERY ||
(function == MODE_SAVE && pVBox->state == NULL))
{
/* Make sure we save at least this information in case of failure */
(void)VBEGetVBEMode(pVBox->pVbe, &pVBox->stateMode);
vgaHWSaveFonts(pScrn, &pVBox->vgaRegs);
if (!VBESaveRestore(pVBox->pVbe,function,(pointer)&pVBox->state,
&pVBox->stateSize,&pVBox->statePage)
)
rc = FALSE;
}
}
if (rc)
{
/* Save/Restore Super VGA state */
if (function != MODE_QUERY) {
if (function == MODE_RESTORE)
memcpy(pVBox->state, pVBox->pstate,
(unsigned) pVBox->stateSize);
if ( (rc = VBESaveRestore(pVBox->pVbe,function,
(pointer)&pVBox->state,
&pVBox->stateSize,&pVBox->statePage)
)
&& (function == MODE_SAVE)
)
{
/* don't rely on the memory not being touched */
if (pVBox->pstate == NULL)
pVBox->pstate = malloc(pVBox->stateSize);
memcpy(pVBox->pstate, pVBox->state,
(unsigned) pVBox->stateSize);
}
if (function == MODE_RESTORE)
{
VBESetVBEMode(pVBox->pVbe, pVBox->stateMode, NULL);
vgaHWRestoreFonts(pScrn, &pVBox->vgaRegs);
}
}
}
TRACE_LOG("returning %s\n", rc ? "TRUE" : "FALSE");
return rc;
}
static void
VBOXDisplayPowerManagementSet(ScrnInfoPtr pScrn, int mode,
int flags)
{
(void)pScrn; (void)mode; (void) flags;
}