vboxvideo_70.c revision e64031e20c39650a7bc902a3e1aba613b9415dee
/** @file
*
* Linux Additions X11 graphics driver
*/
/*
* Copyright (C) 2006-2007 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"
/* 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, DisplayModePtr pMode);
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, DisplayModePtr pMode);
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
/*
* 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 funtion 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
};
/* Supported chipsets */
static SymTabRec VBOXChipsets[] =
{
{VBOX_VESA_DEVICEID, "vbox"},
{-1, NULL}
};
static PciChipsets VBOXPCIchipsets[] = {
{ VBOX_DEVICEID, VBOX_DEVICEID, RES_SHARED_VGA },
{ -1, -1, RES_UNDEFINED },
};
typedef enum {
OPTION_SHADOW_FB,
OPTION_DFLT_REFRESH,
OPTION_MODESET_CLEAR_SCREEN
} VBOXOpts;
/* No options for now */
static const OptionInfoRec VBOXOptions[] = {
{ -1, NULL, OPTV_NONE, {0}, FALSE }
};
/*
* 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
};
#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);
}
static VBOXPtr
VBOXGetRec(ScrnInfoPtr pScrn)
{
if (!pScrn->driverPrivate)
{
pScrn->driverPrivate = xcalloc(sizeof(VBOXRec), 1);
#if 0
((VBOXPtr)pScrn->driverPrivate)->vbox_fd = -1;
#endif
}
return ((VBOXPtr)pScrn->driverPrivate);
}
static void
VBOXFreeRec(ScrnInfoPtr pScrn)
{
VBOXPtr pVBox = VBOXGetRec(pScrn);
#if 0
xfree(pVBox->vbeInfo);
#endif
xfree(pVBox->savedPal);
xfree(pVBox->fonts);
xfree(pScrn->driverPrivate);
pScrn->driverPrivate = NULL;
}
/*
* 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->ValidMode = VBOXValidMode; */
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);
}
#else /* !PCIACCESS */
static Bool
VBOXProbe(DriverPtr drv, int flags)
{
Bool foundScreen = FALSE;
int numDevSections, numUsed;
GDevPtr *devSections;
int *usedChips;
int i;
/*
* 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()) {
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;
}
}
}
xfree(usedChips);
}
}
xfree(devSections);
return (foundScreen);
}
#endif /* !PCIACCESS */
/**
* 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);
pVBox->accessEnabled = enable;
pVBox->EnableDisableFBAccess(scrnIndex, enable);
}
/*
* 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};
int i;
DisplayModePtr pMode;
enum { MODE_MIN_SIZE = 64 };
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;
#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->rgbBits = 8;
/* Let's create a nice, capable virtual monitor. */
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->chipset = "vbox";
pScrn->progClock = TRUE;
/* Determine the size of the VBox video RAM from PCI data*/
#if 0
pScrn->videoRam = 1 << pVBox->pciInfo->size[0];
#endif
/* Using the PCI information caused problems with non-powers-of-two
sized video RAM configurations */
pScrn->videoRam = inl(VBE_DISPI_IOPORT_DATA) / 1024;
/* 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;
/* Determine the preferred size and colour depth and setup video modes */
{
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);
/* 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);
/* 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;
pScrn->displayWidth = pScrn->virtualX;
xf86PrintModes(pScrn);
/* Set the DPI. Perhaps we should read this from the host? */
xf86SetDpi(pScrn, 96, 96);
/* options */
xf86CollectOptions(pScrn, NULL);
if (!(pVBox->Options = xalloc(sizeof(VBOXOptions))))
return FALSE;
memcpy(pVBox->Options, VBOXOptions, sizeof(VBOXOptions));
xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, pVBox->Options);
/* Framebuffer-related setup */
pScrn->bitmapBitOrder = BITMAP_BIT_ORDER;
/* VGA hardware initialisation */
if (!vgaHWGetHWRec(pScrn))
return FALSE;
TRACE_EXIT();
return (TRUE);
}
/*
* 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 (pVBox->mapPhys == 0) {
#ifdef PCIACCESS
pVBox->mapPhys = pVBox->pciInfo->regions[0].base_addr;
#else
pVBox->mapPhys = pVBox->pciInfo->memBase[0];
#endif
/* pVBox->mapSize = 1 << pVBox->pciInfo->size[0]; */
/* Using the PCI information caused problems with
non-powers-of-two sized video RAM configurations */
pVBox->mapSize = inl(VBE_DISPI_IOPORT_DATA);
pVBox->mapOff = 0;
}
if (!VBOXMapVidMem(pScrn))
return (FALSE);
/* save current video state */
VBOXSaveRestore(pScrn, MODE_SAVE);
pVBox->savedPal = VBESetGetPaletteData(pVBox->pVbe, FALSE, 0, 256,
NULL, FALSE, FALSE);
/* set the viewport */
VBOXAdjustFrame(scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
/* Blank the screen for aesthetic reasons. */
VBOXSaveScreen(pScreen, SCREEN_SAVER_ON);
/* 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);
/* 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;
/* software cursor */
miDCInitialize(pScreen, xf86GetPointerScreenFuncs());
/* colourmap code - apparently, we need this even in Truecolour */
if (!miCreateDefColormap(pScreen))
return (FALSE);
flags = CMAP_RELOAD_ON_MODE_SWITCH;
if(!vgaHWHandleColormaps(pScreen))
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;
xf86DPMSInit(pScreen, VBOXDisplayPowerManagementSet, 0);
/* Report any unused options (only for the first generation) */
if (serverGeneration == 1)
xf86ShowUnusedOptions(pScrn->scrnIndex, pScrn->options);
/* set first video mode */
if (!VBOXSetMode(pScrn, pScrn->currentMode))
return FALSE;
/* And make sure that a non-current dynamic mode is at the front of the
* list */
vboxWriteHostModes(pScrn, pScrn->currentMode);
if (vbox_open (pScrn, pScreen, pVBox)) {
if (vbox_cursor_init(pScreen) != TRUE)
xf86DrvMsg(scrnIndex, X_ERROR,
"Unable to start the VirtualBox mouse pointer integration with the host system.\n");
if (vboxEnableVbva(pScrn) == TRUE)
xf86DrvMsg(scrnIndex, X_INFO,
"The VBox video extensions are now enabled.\n");
vboxEnableGraphicsCap(pVBox);
}
TRACE_EXIT();
return (TRUE);
}
static Bool
VBOXEnterVT(int scrnIndex, int flags)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
VBOXPtr pVBox = VBOXGetRec(pScrn);
TRACE_ENTRY();
pVBox->vtSwitch = FALSE;
if (!VBOXSetMode(pScrn, pScrn->currentMode))
return FALSE;
VBOXAdjustFrame(scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
if (pVBox->useVbva == TRUE)
vboxEnableVbva(pScrn);
return TRUE;
}
static void
VBOXLeaveVT(int scrnIndex, int flags)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
VBOXPtr pVBox = VBOXGetRec(pScrn);
TRACE_ENTRY();
VBOXSaveRestore(pScrn, MODE_RESTORE);
if (pVBox->useVbva == TRUE)
vboxDisableVbva(pScrn);
vboxDisableGraphicsCap(pVBox);
pVBox->vtSwitch = TRUE;
}
static Bool
VBOXCloseScreen(int scrnIndex, ScreenPtr pScreen)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
VBOXPtr pVBox = VBOXGetRec(pScrn);
if (pVBox->useVbva == TRUE)
vboxDisableVbva(pScrn);
vboxDisableGraphicsCap(pVBox);
if (pScrn->vtSema) {
VBOXSaveRestore(xf86Screens[scrnIndex], MODE_RESTORE);
if (pVBox->savedPal)
VBESetGetPaletteData(pVBox->pVbe, TRUE, 0, 256,
pVBox->savedPal, FALSE, TRUE);
VBOXUnmapVidMem(pScrn);
}
pScrn->vtSema = FALSE;
/* Destroy the VGA hardware record */
vgaHWFreeHWRec(pScrn);
pScreen->CloseScreen = pVBox->CloseScreen;
return pScreen->CloseScreen(scrnIndex, pScreen);
}
static Bool
VBOXSwitchMode(int scrnIndex, DisplayModePtr pMode, int flags)
{
ScrnInfoPtr pScrn;
VBOXPtr pVBox;
Bool rc = TRUE;
pScrn = xf86Screens[scrnIndex]; /* Why does X have three ways of refering to the screen? */
pVBox = VBOXGetRec(pScrn);
if (pVBox->useVbva)
if (!vboxDisableVbva(pScrn)) /* This would be bad. */
rc = FALSE;
/* 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);
if (rc && !VBOXSetMode(pScrn, pMode))
rc = FALSE;
if (rc && !VBOXAdjustScreenPixmap(pScrn, pMode))
rc = FALSE;
if (rc && !vboxGuestIsSeamless(pScrn))
vboxSaveVideoMode(pScrn, pMode->HDisplay, pMode->VDisplay,
pScrn->bitsPerPixel);
if (rc)
{
vboxWriteHostModes(pScrn, pMode);
xf86PrintModes(pScrn);
}
if (pVBox->accessEnabled)
pVBox->EnableDisableFBAccess(scrnIndex, TRUE);
if (pVBox->useVbva)
if (!vboxEnableVbva(pScrn)) /* Bad but not fatal */
pVBox->useVbva = FALSE;
return rc;
}
/* Set a graphics mode */
static Bool
VBOXSetMode(ScrnInfoPtr pScrn, DisplayModePtr pMode)
{
TRACE_ENTRY();
int bpp = pScrn->depth == 24 ? 32 : 16;
VBOXPtr pVBox = VBOXGetRec(pScrn);
/* Don't fiddle with the hardware if we are switched
* to a virtual terminal. */
if (pVBox->vtSwitch == TRUE)
return TRUE;
if (pScrn->virtualX * pScrn->virtualY * bpp / 8
>= pScrn->videoRam * 1024)
{
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"Unable to set up a virtual screen size of %dx%d with %d Kb of video memory. Please increase the video memory size.\n",
pScrn->virtualX, pScrn->virtualY, pScrn->videoRam);
return FALSE;
}
pScrn->vtSema = TRUE;
/* Disable linear framebuffer mode before making changes to the resolution. */
outw(VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_ENABLE);
outw(VBE_DISPI_IOPORT_DATA,
VBE_DISPI_DISABLED);
/* Unlike the resolution, the depth is fixed for a given screen
for the lifetime of the X session. */
outw(VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_BPP);
outw(VBE_DISPI_IOPORT_DATA, bpp);
/* HDisplay and VDisplay are actually monitor information about
the display part of the scanlines. */
outw(VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_XRES);
outw(VBE_DISPI_IOPORT_DATA, pMode->HDisplay);
outw(VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_YRES);
outw(VBE_DISPI_IOPORT_DATA, pMode->VDisplay);
/* Enable linear framebuffer mode. */
outw(VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_ENABLE);
outw(VBE_DISPI_IOPORT_DATA,
VBE_DISPI_ENABLED | VBE_DISPI_LFB_ENABLED);
/* Set the virtual resolution. We are still using VESA to control
the virtual offset. */
outw(VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_VIRT_WIDTH);
outw(VBE_DISPI_IOPORT_DATA, pMode->HDisplay);
pVBox->cLastWidth = pMode->HDisplay;
pVBox->cLastHeight = pMode->VDisplay;
vboxEnableGraphicsCap(pVBox);
TRACE_EXIT();
return (TRUE);
}
static bool VBOXAdjustScreenPixmap(ScrnInfoPtr pScrn, DisplayModePtr pMode)
{
ScreenPtr pScreen = pScrn->pScreen;
PixmapPtr pPixmap = pScreen->GetScreenPixmap(pScreen);
VBOXPtr pVBox = VBOXGetRec(pScrn);
int bpp = pScrn->depth == 24 ? 32 : 16;
if (!pPixmap) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"Failed to get the screen pixmap.\n");
return FALSE;
}
pScreen->ModifyPixmapHeader(pPixmap, pMode->HDisplay, pMode->VDisplay,
pScrn->depth, bpp, pMode->HDisplay * bpp / 8,
pVBox->base);
pScrn->EnableDisableFBAccess(pScrn->scrnIndex, FALSE);
pScrn->EnableDisableFBAccess(pScrn->scrnIndex, TRUE);
return TRUE;
}
static void
VBOXAdjustFrame(int scrnIndex, int x, int y, int flags)
{
VBOXPtr pVBox = VBOXGetRec(xf86Screens[scrnIndex]);
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
/* Don't fiddle with the hardware if we are switched
* to a virtual terminal. */
if (pVBox->vtSwitch == TRUE)
return;
pVBox->viewportX = x;
pVBox->viewportY = y;
/* If VBVA is enabled the graphics card will not notice the change. */
if (pVBox->useVbva == TRUE)
vboxDisableVbva(pScrn);
VBESetDisplayStart(pVBox->pVbe, x, y, TRUE);
if (pVBox->useVbva == TRUE)
vboxEnableVbva(pScrn);
}
static void
VBOXFreeScreen(int scrnIndex, int flags)
{
VBOXFreeRec(xf86Screens[scrnIndex]);
}
static Bool
VBOXMapVidMem(ScrnInfoPtr pScrn)
{
VBOXPtr pVBox = VBOXGetRec(pScrn);
if (pVBox->base != NULL)
return (TRUE);
pScrn->memPhysBase = pVBox->mapPhys;
pScrn->fbOffset = pVBox->mapOff;
#ifdef PCIACCESS
(void) pci_device_map_range(pVBox->pciInfo,
pScrn->memPhysBase,
pVBox->mapSize,
PCI_DEV_MAP_FLAG_WRITABLE,
& pVBox->base);
#else
pVBox->base = xf86MapPciMem(pScrn->scrnIndex,
VIDMEM_FRAMEBUFFER,
pVBox->pciTag, pVBox->mapPhys,
(unsigned) pVBox->mapSize);
#endif
if (pVBox->base)
{
/* We need this for saving/restoring textmode */
VGAHWPTR(pScrn)->IOBase = pScrn->domainIOBase;
return vgaHWMapMem(pScrn);
}
else
return FALSE;
}
static void
VBOXUnmapVidMem(ScrnInfoPtr pScrn)
{
VBOXPtr pVBox = VBOXGetRec(pScrn);
if (pVBox->base == NULL)
return;
#ifdef PCIACCESS
(void) pci_device_unmap_range(pVBox->pciInfo,
pVBox->base,
pVBox->mapSize);
#else
xf86UnMapVidMem(pScrn->scrnIndex, pVBox->base,
(unsigned) pVBox->mapSize);
#endif
vgaHWUnmapMem(pScrn);
pVBox->base = NULL;
}
static Bool
VBOXSaveScreen(ScreenPtr pScreen, int mode)
{
return vgaHWSaveScreen(pScreen, mode);
}
Bool
VBOXSaveRestore(ScrnInfoPtr pScrn, vbeSaveRestoreFunction function)
{
VBOXPtr pVBox;
if (MODE_QUERY < 0 || function > MODE_RESTORE)
return (FALSE);
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))
return FALSE;
}
/* Save/Restore Super VGA state */
if (function != MODE_QUERY) {
Bool retval = TRUE;
if (function == MODE_RESTORE)
memcpy(pVBox->state, pVBox->pstate,
(unsigned) pVBox->stateSize);
if ((retval = 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 = xalloc(pVBox->stateSize);
memcpy(pVBox->pstate, pVBox->state,
(unsigned) pVBox->stateSize);
}
if (function == MODE_RESTORE)
{
VBESetVBEMode(pVBox->pVbe, pVBox->stateMode, NULL);
vgaHWRestoreFonts(pScrn, &pVBox->vgaRegs);
}
if (!retval)
return (FALSE);
}
return (TRUE);
}
static void
VBOXDisplayPowerManagementSet(ScrnInfoPtr pScrn, int mode,
int flags)
{
vgaHWDPMSSet(pScrn, mode, flags);
}