vboxvideo_68.c revision a2760a4d593af57a19ec32cdfd1723b68495df8c
/** @file
*
* Linux Additions X11 graphics driver
*/
/*
* Copyright (C) 2006-2007 innotek GmbH
*
* 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>
*/
#define DEBUG_VERB 2
#include "vboxvideo.h"
#include "version-generated.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" */
/* Mandatory functions */
static const OptionInfoRec * VBOXAvailableOptions(int chipid, int busid);
static void VBOXIdentify(int flags);
static Bool VBOXProbe(DriverPtr drv, int flags);
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 void VBOXLoadPalette(ScrnInfoPtr pScrn, int numColors,
int *indices,
LOCO *colors, VisualPtr pVisual);
static void SaveFonts(ScrnInfoPtr pScrn);
static void RestoreFonts(ScrnInfoPtr pScrn);
static Bool VBOXSaveRestore(ScrnInfoPtr pScrn,
vbeSaveRestoreFunction function);
/* Initialise DGA */
static Bool VBOXDGAInit(ScrnInfoPtr pScrn, ScreenPtr pScreen);
/*
* 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.
*/
DriverRec VBOXDRV = {
VBOX_VERSION,
VBOX_DRIVER_NAME,
VBOXIdentify,
VBOXProbe,
VBOXAvailableOptions,
NULL,
0
};
/* 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
} 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[] = {
"VBEFreeModeInfo",
"VBEGetModeInfo",
"VBEGetVBEInfo",
"VBEGetVBEMode",
"VBEInit",
"VBESaveRestore",
"VBESetDisplayStart",
"VBESetGetDACPaletteFormat",
"VBESetGetLogicalScanlineLength",
"VBESetGetPaletteData",
"VBESetVBEMode",
"vbeDoEDID",
"vbeFree",
NULL
};
static const char *ramdacSymbols[] = {
"xf86InitCursor",
"xf86CreateCursorInfoRec",
NULL
};
#ifdef XFree86LOADER
/* Module loader interface */
static MODULESETUPPROTO(vboxSetup);
static XF86ModuleVersionInfo vboxVersionRec =
{
VBOX_DRIVER_NAME,
"innotek GmbH",
MODINFOSTRING1,
MODINFOSTRING2,
XF86_VERSION_CURRENT,
1, /* Module major version. Xorg-specific */
0, /* Module minor version. Xorg-specific */
0, /* 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".
*/
XF86ModuleData vboxvideoModuleData = { &vboxVersionRec, vboxSetup, NULL };
static pointer
vboxSetup(pointer Module, pointer Options, int *ErrorMajor, int *ErrorMinor)
{
static Bool Initialised = FALSE;
if (!Initialised)
{
Initialised = TRUE;
xf86AddDriver(&VBOXDRV, Module, 0);
LoaderRefSymLists(fbSymbols,
shadowfbSymbols,
vbeSymbols,
ramdacSymbols,
NULL);
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.
*/
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);
}
static VBOXPtr
VBOXGetRec(ScrnInfoPtr pScrn)
{
if (!pScrn->driverPrivate)
{
pScrn->driverPrivate = xcalloc(sizeof(VBOXRec), 1);
((VBOXPtr)pScrn->driverPrivate)->vbox_fd = -1;
}
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;
}
/*
* 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};
ClockRange *clockRanges;
int i;
DisplayModePtr m_prev;
/* Are we really starting the server, or is this just a dummy run? */
if (flags & PROBE_DETECT)
return (FALSE);
xf86Msg(X_INFO,
"VirtualBox guest additions video driver version "
VBOX_VERSION_STRING "\n");
/* Get our private data from the ScrnInfoRec structure. */
pVBox = VBOXGetRec(pScrn);
/* Entity information seems to mean bus information. */
pVBox->pEnt = xf86GetEntityInfo(pScrn->entityList[0]);
if (pVBox->pEnt->location.type != BUS_PCI)
return FALSE;
/* The ramdac module is needed for the hardware cursor. */
if (!xf86LoadSubModule(pScrn, "ramdac"))
return FALSE;
xf86LoaderReqSymLists(ramdacSymbols, NULL);
/* 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);
xf86LoaderReqSymLists(vbeSymbols, NULL);
/* The framebuffer module. */
if (xf86LoadSubModule(pScrn, "fb") == NULL)
return (FALSE);
xf86LoaderReqSymLists(fbSymbols, NULL);
if (!xf86LoadSubModule(pScrn, "shadowfb"))
return FALSE;
xf86LoaderReqSymLists(shadowfbSymbols, NULL);
pVBox->pciInfo = xf86GetPciInfoForEntity(pVBox->pEnt->index);
pVBox->pciTag = pciTag(pVBox->pciInfo->bus,
pVBox->pciInfo->device,
pVBox->pciInfo->func);
/* 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. */
clockRanges = xnfcalloc(sizeof(ClockRange), 1);
clockRanges->next = NULL;
clockRanges->minClock = 1000;
clockRanges->maxClock = 1000000000;
clockRanges->clockIndex = -1;
clockRanges->ClockMulFactor = 1;
clockRanges->ClockDivFactor = 1;
/* This function asks X to choose a depth and bpp based on the
config file and the command line, and gives a default in
case none is specified. Note that we only support 32bpp, not
24bpp. After spending ages looking through the XFree86 4.2
source code however, I realised that it automatically uses
32bpp for depth 24 unless you explicitly add a "24 24"
format to its internal list. */
if (!xf86SetDepthBpp(pScrn, pScrn->videoRam >= 2048 ? 24 : 16, 0, 0,
Support32bppFb))
return FALSE;
if (pScrn->depth != 24 && pScrn->depth != 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);
/* To get around the problem of SUSE specifying a single, invalid mode in their
* Xorg.conf by default, we add an additional mode to the end of the user specified
* list. This means that if all user modes are invalid, X will try our mode before
* falling back to its standard mode list. */
if (pScrn->display->modes == NULL)
{
/* The user specified no modes at all - specify 1024x768 as a default. */
pScrn->display->modes = xnfalloc(4 * sizeof(char*));
pScrn->display->modes[0] = "1024x768";
pScrn->display->modes[1] = "800x600";
pScrn->display->modes[2] = "640x480";
pScrn->display->modes[3] = NULL;
}
else
{
/* Add 1024x768 to the end of the mode list in case the others are all invalid. */
for (i = 0; pScrn->display->modes[i] != NULL; i++);
pScrn->display->modes = xnfrealloc(pScrn->display->modes, (i + 4)
* sizeof(char *));
pScrn->display->modes[i ] = "1024x768";
pScrn->display->modes[i+1] = "800x600";
pScrn->display->modes[i+2] = "640x480";
pScrn->display->modes[i+3] = NULL;
}
/* Determine the virtual screen resolution from the first mode (which will be selected) */
sscanf(pScrn->display->modes[0], "%dx%d",
&pScrn->display->virtualX, &pScrn->display->virtualY);
pScrn->display->virtualX = (pScrn->display->virtualX + 7) & ~7;
/* Create a builtin mode for every specified mode. This allows to specify arbitrary
* screen resolutions */
m_prev = NULL;
for (i = 0; pScrn->display->modes[i] != NULL; i++)
{
DisplayModePtr m;
int x = 0, y = 0;
sscanf(pScrn->display->modes[i], "%dx%d", &x, &y);
/* sanity check, smaller resolutions does not make sense */
if (x < 64 || y < 64)
{
xf86DrvMsg(pScrn->scrnIndex, X_WARNING, "Ignoring mode \"%s\"\n",
pScrn->display->modes[i]);
continue;
}
m = xnfcalloc(sizeof(DisplayModeRec), 1);
m->status = MODE_OK;
m->type = M_T_BUILTIN;
/* VBox does only support screen widths which are a multiple of 8 */
m->HDisplay = (x + 7) & ~7;
m->VDisplay = y;
m->name = strdup(pScrn->display->modes[i]);
if (!m_prev)
pScrn->modePool = m;
else
m_prev->next = m;
m->prev = m_prev;
m_prev = m;
}
/* Filter out video modes not supported by the virtual hardware
we described. All modes used by the Windows additions should
work fine. */
i = xf86ValidateModes(pScrn, pScrn->monitor->Modes,
pScrn->display->modes,
clockRanges, NULL, 0, 6400, 1, 0, 1440,
pScrn->display->virtualX,
pScrn->display->virtualY,
pScrn->videoRam, LOOKUP_BEST_REFRESH);
if (i <= 0) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "No usable graphics modes found.\n");
return (FALSE);
}
xf86PruneDriverModes(pScrn);
pScrn->currentMode = pScrn->modes;
pScrn->displayWidth = pScrn->virtualX;
xf86PrintModes(pScrn);
/* Set display resolution. This was arbitrarily chosen to be about the same as my monitor. */
xf86SetDpi(pScrn, 100, 100);
if (pScrn->modes == NULL) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "No graphics modes available\n");
return (FALSE);
}
/* 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;
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.Initialise the initial video mode.
*/
static Bool
VBOXScreenInit(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
VBOXPtr pVBox = VBOXGetRec(pScrn);
VisualPtr visual;
unsigned flags;
/* We make use of the X11 VBE code to save and restore text mode, in
order to keep our code simple. */
if ((pVBox->pVbe = VBEInit(NULL, pVBox->pEnt->index)) == NULL)
return (FALSE);
if (pVBox->mapPhys == 0) {
pVBox->mapPhys = pVBox->pciInfo->memBase[0];
/* 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 first video mode */
if (!VBOXSetMode(pScrn, pScrn->currentMode))
return FALSE;
/* 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);
VBOXDGAInit(pScrn, pScreen);
xf86SetBlackWhitePixels(pScreen);
miInitializeBackingStore(pScreen);
xf86SetBackingStore(pScreen);
/* 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(!xf86HandleColormaps(pScreen, 256,
8 /* DAC is switchable to 8 bits per primary color */,
VBOXLoadPalette, NULL, flags))
return (FALSE);
pVBox->CloseScreen = pScreen->CloseScreen;
pScreen->CloseScreen = VBOXCloseScreen;
pScreen->SaveScreen = VBOXSaveScreen;
/* However, 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_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");
} else
xf86DrvMsg(scrnIndex, X_ERROR, "Failed to open the VBox system device - make sure that the VirtualBox guest additions are properly installed. If you are not sure, try reinstalling them.\n");
return (TRUE);
}
static Bool
VBOXEnterVT(int scrnIndex, int flags)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
VBOXPtr pVBox = VBOXGetRec(pScrn);
if (!VBOXSetMode(pScrn, pScrn->currentMode))
return FALSE;
if (pVBox->useVbva == TRUE)
vboxEnableVbva(pScrn);
return TRUE;
}
static void
VBOXLeaveVT(int scrnIndex, int flags)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
VBOXPtr pVBox = VBOXGetRec(pScrn);
VBOXSaveRestore(pScrn, MODE_RESTORE);
if (pVBox->useVbva == TRUE)
vboxDisableVbva(pScrn);
}
static Bool
VBOXCloseScreen(int scrnIndex, ScreenPtr pScreen)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
VBOXPtr pVBox = VBOXGetRec(pScrn);
if (pVBox->useVbva == TRUE)
vboxDisableVbva(pScrn);
if (pScrn->vtSema) {
VBOXSaveRestore(xf86Screens[scrnIndex], MODE_RESTORE);
VBESetGetPaletteData(pVBox->pVbe, TRUE, 0, 256,
pVBox->savedPal, FALSE, TRUE);
VBOXUnmapVidMem(pScrn);
}
if (pVBox->pDGAMode) {
xfree(pVBox->pDGAMode);
pVBox->pDGAMode = NULL;
pVBox->nDGAMode = 0;
}
pScrn->vtSema = FALSE;
pScreen->CloseScreen = pVBox->CloseScreen;
return pScreen->CloseScreen(scrnIndex, pScreen);
}
static Bool
VBOXSwitchMode(int scrnIndex, DisplayModePtr pMode, int flags)
{
ScrnInfoPtr pScrn;
VBOXPtr pVBox;
pScrn = xf86Screens[scrnIndex]; /* Why does X have three ways of refering to the screen? */
pVBox = VBOXGetRec(pScrn);
if (pVBox->useVbva == TRUE)
if (vboxDisableVbva(pScrn) != TRUE) /* This would be bad. */
return FALSE;
if (VBOXSetMode(pScrn, pMode) != TRUE)
return FALSE;
if (pVBox->useVbva == TRUE)
if (vboxEnableVbva(pScrn) != TRUE) /* Bad but not fatal */
pVBox->useVbva = FALSE;
return TRUE;
}
/* Set a graphics mode */
static Bool
VBOXSetMode(ScrnInfoPtr pScrn, DisplayModePtr pMode)
{
VBOXPtr pVBox;
int bpp = pScrn->depth == 24 ? 32 : 16;
int xRes = pMode->HDisplay;
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;
}
/* We only support horizontal resolutions which are a multiple of 8. Round down if
necessary. */
if (xRes % 8 != 0)
{
xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
"VirtualBox only supports screen widths which are a multiple of 8. Rounding down from %d to %d\n",
xRes, xRes - (xRes % 8));
xRes = xRes - (xRes % 8);
}
pVBox = VBOXGetRec(pScrn);
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, xRes);
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, pScrn->displayWidth);
return (TRUE);
}
static void
VBOXAdjustFrame(int scrnIndex, int x, int y, int flags)
{
VBOXPtr pVBox = VBOXGetRec(xf86Screens[scrnIndex]);
VBESetDisplayStart(pVBox->pVbe, x, y, TRUE);
}
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;
pVBox->base = xf86MapPciMem(pScrn->scrnIndex,
VIDMEM_FRAMEBUFFER,
pVBox->pciTag, pVBox->mapPhys,
(unsigned) pVBox->mapSize);
if (pVBox->base) {
pScrn->memPhysBase = pVBox->mapPhys;
pVBox->VGAbase = xf86MapVidMem(pScrn->scrnIndex, 0,
0xa0000, 0x10000);
}
return (pVBox->base != NULL);
}
static void
VBOXUnmapVidMem(ScrnInfoPtr pScrn)
{
VBOXPtr pVBox = VBOXGetRec(pScrn);
if (pVBox->base == NULL)
return;
xf86UnMapVidMem(pScrn->scrnIndex, pVBox->base,
(unsigned) pVBox->mapSize);
xf86UnMapVidMem(pScrn->scrnIndex, pVBox->VGAbase, 0x10000);
pVBox->base = NULL;
}
static void
VBOXLoadPalette(ScrnInfoPtr pScrn, int numColors, int *indices,
LOCO *colors, VisualPtr pVisual)
{
#define WriteDacWriteAddr(value) outb(VGA_DAC_WRITE_ADDR, value)
#define WriteDacData(value) outb(VGA_DAC_DATA, value);
#undef DACDelay
#define DACDelay() \
do { \
unsigned char temp = inb(VGA_IOBASE_COLOR + VGA_IN_STAT_1_OFFSET); \
temp = inb(VGA_IOBASE_COLOR + VGA_IN_STAT_1_OFFSET); \
} while (0)
int i, idx;
for (i = 0; i < numColors; i++) {
idx = indices[i];
WriteDacWriteAddr(idx);
DACDelay();
WriteDacData(colors[idx].red);
DACDelay();
WriteDacData(colors[idx].green);
DACDelay();
WriteDacData(colors[idx].blue);
DACDelay();
}
}
/*
* Just adapted from the std* functions in vgaHW.c
*/
static void
WriteAttr(int index, int value)
{
CARD8 tmp;
tmp = inb(VGA_IOBASE_COLOR + VGA_IN_STAT_1_OFFSET);
index |= 0x20;
outb(VGA_ATTR_INDEX, index);
outb(VGA_ATTR_DATA_W, value);
}
static int
ReadAttr(int index)
{
CARD8 tmp;
tmp = inb(VGA_IOBASE_COLOR + VGA_IN_STAT_1_OFFSET);
index |= 0x20;
outb(VGA_ATTR_INDEX, index);
return (inb(VGA_ATTR_DATA_R));
}
#define WriteMiscOut(value) outb(VGA_MISC_OUT_W, value)
#define ReadMiscOut() inb(VGA_MISC_OUT_R)
#define WriteSeq(index, value) \
outb(VGA_SEQ_INDEX, (index));\
outb(VGA_SEQ_DATA, value)
static int
ReadSeq(int index)
{
outb(VGA_SEQ_INDEX, index);
return (inb(VGA_SEQ_DATA));
}
#define WriteGr(index, value) outb(VGA_GRAPH_INDEX, index);\
outb(VGA_GRAPH_DATA, value)
static int
ReadGr(int index)
{
outb(VGA_GRAPH_INDEX, index);
return (inb(VGA_GRAPH_DATA));
}
#define WriteCrtc(index, value) outb(VGA_CRTC_INDEX_OFFSET, index);\
outb(VGA_CRTC_DATA_OFFSET, value)
static void
SeqReset(Bool start)
{
if (start) {
WriteSeq(0x00, 0x01); /* Synchronous Reset */
}
else {
WriteSeq(0x00, 0x03); /* End Reset */
}
}
static void
SaveFonts(ScrnInfoPtr pScrn)
{
VBOXPtr pVBox = VBOXGetRec(pScrn);
unsigned char miscOut, attr10, gr4, gr5, gr6, seq2, seq4, scrn;
if (pVBox->fonts != NULL)
return;
/* If in graphics mode, don't save anything */
attr10 = ReadAttr(0x10);
if (attr10 & 0x01)
return;
pVBox->fonts = xalloc(16384);
/* save the registers that are needed here */
miscOut = ReadMiscOut();
gr4 = ReadGr(0x04);
gr5 = ReadGr(0x05);
gr6 = ReadGr(0x06);
seq2 = ReadSeq(0x02);
seq4 = ReadSeq(0x04);
/* Force into colour mode */
WriteMiscOut(miscOut | 0x01);
scrn = ReadSeq(0x01) | 0x20;
SeqReset(TRUE);
WriteSeq(0x01, scrn);
SeqReset(FALSE);
WriteAttr(0x10, 0x01); /* graphics mode */
/*font1 */
WriteSeq(0x02, 0x04); /* write to plane 2 */
WriteSeq(0x04, 0x06); /* enable plane graphics */
WriteGr(0x04, 0x02); /* read plane 2 */
WriteGr(0x05, 0x00); /* write mode 0, read mode 0 */
WriteGr(0x06, 0x05); /* set graphics */
slowbcopy_frombus(pVBox->VGAbase, pVBox->fonts, 8192);
/* font2 */
WriteSeq(0x02, 0x08); /* write to plane 3 */
WriteSeq(0x04, 0x06); /* enable plane graphics */
WriteGr(0x04, 0x03); /* read plane 3 */
WriteGr(0x05, 0x00); /* write mode 0, read mode 0 */
WriteGr(0x06, 0x05); /* set graphics */
slowbcopy_frombus(pVBox->VGAbase, pVBox->fonts + 8192, 8192);
scrn = ReadSeq(0x01) & ~0x20;
SeqReset(TRUE);
WriteSeq(0x01, scrn);
SeqReset(FALSE);
/* Restore clobbered registers */
WriteAttr(0x10, attr10);
WriteSeq(0x02, seq2);
WriteSeq(0x04, seq4);
WriteGr(0x04, gr4);
WriteGr(0x05, gr5);
WriteGr(0x06, gr6);
WriteMiscOut(miscOut);
}
static void
RestoreFonts(ScrnInfoPtr pScrn)
{
VBOXPtr pVBox = VBOXGetRec(pScrn);
unsigned char miscOut, attr10, gr1, gr3, gr4, gr5, gr6, gr8, seq2, seq4, scrn;
if (pVBox->fonts == NULL)
return;
/* save the registers that are needed here */
miscOut = ReadMiscOut();
attr10 = ReadAttr(0x10);
gr1 = ReadGr(0x01);
gr3 = ReadGr(0x03);
gr4 = ReadGr(0x04);
gr5 = ReadGr(0x05);
gr6 = ReadGr(0x06);
gr8 = ReadGr(0x08);
seq2 = ReadSeq(0x02);
seq4 = ReadSeq(0x04);
/* Force into colour mode */
WriteMiscOut(miscOut | 0x01);
scrn = ReadSeq(0x01) | 0x20;
SeqReset(TRUE);
WriteSeq(0x01, scrn);
SeqReset(FALSE);
WriteAttr(0x10, 0x01); /* graphics mode */
if (pScrn->depth == 4) {
/* GJA */
WriteGr(0x03, 0x00); /* don't rotate, write unmodified */
WriteGr(0x08, 0xFF); /* write all bits in a byte */
WriteGr(0x01, 0x00); /* all planes come from CPU */
}
WriteSeq(0x02, 0x04); /* write to plane 2 */
WriteSeq(0x04, 0x06); /* enable plane graphics */
WriteGr(0x04, 0x02); /* read plane 2 */
WriteGr(0x05, 0x00); /* write mode 0, read mode 0 */
WriteGr(0x06, 0x05); /* set graphics */
slowbcopy_tobus(pVBox->fonts, pVBox->VGAbase, 8192);
WriteSeq(0x02, 0x08); /* write to plane 3 */
WriteSeq(0x04, 0x06); /* enable plane graphics */
WriteGr(0x04, 0x03); /* read plane 3 */
WriteGr(0x05, 0x00); /* write mode 0, read mode 0 */
WriteGr(0x06, 0x05); /* set graphics */
slowbcopy_tobus(pVBox->fonts + 8192, pVBox->VGAbase, 8192);
scrn = ReadSeq(0x01) & ~0x20;
SeqReset(TRUE);
WriteSeq(0x01, scrn);
SeqReset(FALSE);
/* restore the registers that were changed */
WriteMiscOut(miscOut);
WriteAttr(0x10, attr10);
WriteGr(0x01, gr1);
WriteGr(0x03, gr3);
WriteGr(0x04, gr4);
WriteGr(0x05, gr5);
WriteGr(0x06, gr6);
WriteGr(0x08, gr8);
WriteSeq(0x02, seq2);
WriteSeq(0x04, seq4);
}
static Bool
VBOXSaveScreen(ScreenPtr pScreen, int mode)
{
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
Bool on = xf86IsUnblank(mode);
if (on)
SetTimeSinceLastInputEvent();
if (pScrn->vtSema) {
unsigned char scrn = ReadSeq(0x01);
if (on)
scrn &= ~0x20;
else
scrn |= 0x20;
SeqReset(TRUE);
WriteSeq(0x01, scrn);
SeqReset(FALSE);
}
return (TRUE);
}
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);
SaveFonts(pScrn);
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);
RestoreFonts(pScrn);
}
if (!retval)
return (FALSE);
}
return (TRUE);
}
static void
VBOXDisplayPowerManagementSet(ScrnInfoPtr pScrn, int mode,
int flags)
{
/* VBox is always power efficient... */
}
/***********************************************************************
* DGA stuff
***********************************************************************/
static Bool VBOXDGAOpenFramebuffer(ScrnInfoPtr pScrn, char **DeviceName,
unsigned char **ApertureBase,
int *ApertureSize, int *ApertureOffset,
int *flags);
static Bool VBOXDGASetMode(ScrnInfoPtr pScrn, DGAModePtr pDGAMode);
static void VBOXDGASetViewport(ScrnInfoPtr pScrn, int x, int y, int flags);
static Bool
VBOXDGAOpenFramebuffer(ScrnInfoPtr pScrn, char **DeviceName,
unsigned char **ApertureBase, int *ApertureSize,
int *ApertureOffset, int *flags)
{
VBOXPtr pVBox = VBOXGetRec(pScrn);
*DeviceName = NULL; /* No special device */
*ApertureBase = (unsigned char *)(long)(pVBox->mapPhys);
*ApertureSize = pVBox->mapSize;
*ApertureOffset = pVBox->mapOff;
*flags = DGA_NEED_ROOT;
return (TRUE);
}
static Bool
VBOXDGASetMode(ScrnInfoPtr pScrn, DGAModePtr pDGAMode)
{
DisplayModePtr pMode;
int scrnIdx = pScrn->pScreen->myNum;
int frameX0, frameY0;
if (pDGAMode) {
pMode = pDGAMode->mode;
frameX0 = frameY0 = 0;
}
else {
if (!(pMode = pScrn->currentMode))
return (TRUE);
frameX0 = pScrn->frameX0;
frameY0 = pScrn->frameY0;
}
if (!(*pScrn->SwitchMode)(scrnIdx, pMode, 0))
return (FALSE);
(*pScrn->AdjustFrame)(scrnIdx, frameX0, frameY0, 0);
return (TRUE);
}
static void
VBOXDGASetViewport(ScrnInfoPtr pScrn, int x, int y, int flags)
{
(*pScrn->AdjustFrame)(pScrn->pScreen->myNum, x, y, flags);
}
static int
VBOXDGAGetViewport(ScrnInfoPtr pScrn)
{
return (0);
}
static DGAFunctionRec VBOXDGAFunctions =
{
VBOXDGAOpenFramebuffer,
NULL, /* CloseFramebuffer */
VBOXDGASetMode,
VBOXDGASetViewport,
VBOXDGAGetViewport,
NULL, /* Sync */
NULL, /* FillRect */
NULL, /* BlitRect */
NULL, /* BlitTransRect */
};
static void
VBOXDGAAddModes(ScrnInfoPtr pScrn)
{
VBOXPtr pVBox = VBOXGetRec(pScrn);
DisplayModePtr pMode = pScrn->modes;
DGAModePtr pDGAMode;
do {
pDGAMode = xrealloc(pVBox->pDGAMode,
(pVBox->nDGAMode + 1) * sizeof(DGAModeRec));
if (!pDGAMode)
break;
pVBox->pDGAMode = pDGAMode;
pDGAMode += pVBox->nDGAMode;
(void)memset(pDGAMode, 0, sizeof(DGAModeRec));
++pVBox->nDGAMode;
pDGAMode->mode = pMode;
pDGAMode->flags = DGA_CONCURRENT_ACCESS | DGA_PIXMAP_AVAILABLE;
pDGAMode->byteOrder = pScrn->imageByteOrder;
pDGAMode->depth = pScrn->depth;
pDGAMode->bitsPerPixel = pScrn->bitsPerPixel;
pDGAMode->red_mask = pScrn->mask.red;
pDGAMode->green_mask = pScrn->mask.green;
pDGAMode->blue_mask = pScrn->mask.blue;
pDGAMode->visualClass = TrueColor;
pDGAMode->xViewportStep = 1;
pDGAMode->yViewportStep = 1;
pDGAMode->viewportWidth = pMode->HDisplay;
pDGAMode->viewportHeight = pMode->VDisplay;
pDGAMode->bytesPerScanline = pVBox->maxBytesPerScanline;
pDGAMode->imageWidth = pMode->HDisplay;
pDGAMode->imageHeight = pMode->VDisplay;
pDGAMode->pixmapWidth = pDGAMode->imageWidth;
pDGAMode->pixmapHeight = pDGAMode->imageHeight;
pDGAMode->maxViewportX = pScrn->virtualX -
pDGAMode->viewportWidth;
pDGAMode->maxViewportY = pScrn->virtualY -
pDGAMode->viewportHeight;
pDGAMode->address = pVBox->base;
pMode = pMode->next;
} while (pMode != pScrn->modes);
}
static Bool
VBOXDGAInit(ScrnInfoPtr pScrn, ScreenPtr pScreen)
{
VBOXPtr pVBox = VBOXGetRec(pScrn);
if (!pVBox->nDGAMode)
VBOXDGAAddModes(pScrn);
return (DGAInit(pScreen, &VBOXDGAFunctions,
pVBox->pDGAMode, pVBox->nDGAMode));
}