/** @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 */ #define DEBUG_VERB 2 #ifdef XFree86LOADER # include "xorg-server.h" #else # ifdef HAVE_CONFIG_H # include "config.h" # endif #endif #include "vboxvideo.h" #include "version-generated.h" #include /* 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 ModeStatus VBOXValidMode(int scrn, DisplayModePtr p, Bool flag, int pass); 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. */ _X_EXPORT DriverRec VBOXDRV = { VBOX_VERSION, VBOX_DRIVER_NAME, VBOXIdentify, VBOXProbe, VBOXAvailableOptions, NULL, 0, NULL }; /* 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 }; #ifdef XFree86LOADER /* Module loader interface */ static MODULESETUPPROTO(vboxSetup); static XF86ModuleVersionInfo vboxVersionRec = { VBOX_DRIVER_NAME, "innotek GmbH", MODINFOSTRING1, MODINFOSTRING2, XORG_VERSION_CURRENT, 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". */ _X_EXPORT 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->ValidMode = VBOXValidMode; 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->HSyncStart = m->HDisplay + 2; m->HSyncEnd = m->HDisplay + 4; m->HTotal = m->HDisplay + 6; m->VDisplay = y; m->VSyncStart = m->VDisplay + 2; m->VSyncEnd = m->VDisplay + 4; m->VTotal = m->VDisplay + 6; m->Clock = m->HTotal * m->VTotal * 60 / 1000; /* kHz */ 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 = VBEExtendedInit(NULL, pVBox->pEnt->index, SET_BIOS_SCRATCH | RESTORE_BIOS_SCRATCH)) == 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; /* 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); 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; 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); 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); if (pVBox->savedPal) 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); } /** * Quoted from "How to add an (S)VGA driver to XFree86" * (http://www.xfree86.org/3.3.6/VGADriver.html): * * The ValidMode() function is required. It is used to check for any * chipset-dependent reasons why a graphics mode might not be valid. It gets * called by higher levels of the code after the Probe() stage. In many cases * no special checking will be required and this function will simply return * TRUE always. * * Note: we check here that our generated video modes fulfil the X server's * criteria for the monitor, since this can otherwise cause problems in * randr 1.2. */ static ModeStatus VBOXValidMode(int scrn, DisplayModePtr p, Bool flag, int pass) { static int warned = 0; ScrnInfoPtr pScrn = xf86Screens[scrn]; MonPtr mon = pScrn->monitor; ModeStatus ret = MODE_BAD; DisplayModePtr mode; float v; if (pass != MODECHECK_FINAL) { if (!warned) { xf86DrvMsg(scrn, X_WARNING, "VBOXValidMode called unexpectedly\n"); warned = 1; } } /* * First off, if this isn't a mode we handed to the server (ie, * M_T_BUILTIN), then we reject it out of hand. */ if (!(p->type & M_T_BUILTIN)) return MODE_NOMODE; /* * Finally, walk through the vsync rates 1Hz at a time looking for a mode * that will fit. This is assuredly a terrible way to do this, but * there's no obvious method for computing a mode of a given size that * will pass xf86CheckModeForMonitor. */ for (v = mon->vrefresh[0].lo; v <= mon->vrefresh[0].hi; v++) { mode = xf86CVTMode(p->HDisplay, p->VDisplay, v, 0, 0); ret = xf86CheckModeForMonitor(mode, mon); xfree(mode); if (ret == MODE_OK) break; } if (ret != MODE_OK) { xf86DrvMsg(scrn, X_WARNING, "Graphics mode %s rejected by the X server\n", p->name); } return ret; } 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 = xf86MapDomainMemory(pScrn->scrnIndex, 0, pVBox->pciTag, 0xa0000, 0x10000); } /* We need this for saving/restoring textmode */ pVBox->ioBase = pScrn->domainIOBase; 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) { VBOXPtr pVBox = VBOXGetRec(pScrn); int i, idx; #define VBOXDACDelay() \ do { \ (void)inb(pVBox->ioBase + VGA_IOBASE_COLOR + VGA_IN_STAT_1_OFFSET); \ (void)inb(pVBox->ioBase + VGA_IOBASE_COLOR + VGA_IN_STAT_1_OFFSET); \ } while (0) for (i = 0; i < numColors; i++) { idx = indices[i]; outb(pVBox->ioBase + VGA_DAC_WRITE_ADDR, idx); VBOXDACDelay(); outb(pVBox->ioBase + VGA_DAC_DATA, colors[idx].red); VBOXDACDelay(); outb(pVBox->ioBase + VGA_DAC_DATA, colors[idx].green); VBOXDACDelay(); outb(pVBox->ioBase + VGA_DAC_DATA, colors[idx].blue); VBOXDACDelay(); } } /* * Just adapted from the std* functions in vgaHW.c */ static void WriteAttr(VBOXPtr pVBox, int index, int value) { (void) inb(pVBox->ioBase + VGA_IOBASE_COLOR + VGA_IN_STAT_1_OFFSET); index |= 0x20; outb(pVBox->ioBase + VGA_ATTR_INDEX, index); outb(pVBox->ioBase + VGA_ATTR_DATA_W, value); } static int ReadAttr(VBOXPtr pVBox, int index) { (void) inb(pVBox->ioBase + VGA_IOBASE_COLOR + VGA_IN_STAT_1_OFFSET); index |= 0x20; outb(pVBox->ioBase + VGA_ATTR_INDEX, index); return (inb(pVBox->ioBase + VGA_ATTR_DATA_R)); } #define WriteMiscOut(value) outb(pVBox->ioBase + VGA_MISC_OUT_W, value) #define ReadMiscOut() inb(pVBox->ioBase + VGA_MISC_OUT_R) #define WriteSeq(index, value) \ outb(pVBox->ioBase + VGA_SEQ_INDEX, (index));\ outb(pVBox->ioBase + VGA_SEQ_DATA, value) static int ReadSeq(VBOXPtr pVBox, int index) { outb(pVBox->ioBase + VGA_SEQ_INDEX, index); return (inb(pVBox->ioBase + VGA_SEQ_DATA)); } #define WriteGr(index, value) \ outb(pVBox->ioBase + VGA_GRAPH_INDEX, index); \ outb(pVBox->ioBase + VGA_GRAPH_DATA, value) static int ReadGr(VBOXPtr pVBox, int index) { outb(pVBox->ioBase + VGA_GRAPH_INDEX, index); return (inb(pVBox->ioBase + VGA_GRAPH_DATA)); } #define WriteCrtc(index, value) \ outb(pVBox->ioBase + (VGA_IOBASE_COLOR + VGA_CRTC_INDEX_OFFSET), index); \ outb(pVBox->ioBase + (VGA_IOBASE_COLOR + VGA_CRTC_DATA_OFFSET), value) static void SeqReset(VBOXPtr pVBox, 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(pVBox, 0x10); if (attr10 & 0x01) return; pVBox->fonts = xalloc(16384); /* save the registers that are needed here */ miscOut = ReadMiscOut(); gr4 = ReadGr(pVBox, 0x04); gr5 = ReadGr(pVBox, 0x05); gr6 = ReadGr(pVBox, 0x06); seq2 = ReadSeq(pVBox, 0x02); seq4 = ReadSeq(pVBox, 0x04); /* Force into colour mode */ WriteMiscOut(miscOut | 0x01); scrn = ReadSeq(pVBox, 0x01) | 0x20; SeqReset(pVBox, TRUE); WriteSeq(0x01, scrn); SeqReset(pVBox, FALSE); WriteAttr(pVBox, 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(pVBox, 0x01) & ~0x20; SeqReset(pVBox, TRUE); WriteSeq(0x01, scrn); SeqReset(pVBox, FALSE); /* Restore clobbered registers */ WriteAttr(pVBox, 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(pVBox, 0x10); gr1 = ReadGr(pVBox, 0x01); gr3 = ReadGr(pVBox, 0x03); gr4 = ReadGr(pVBox, 0x04); gr5 = ReadGr(pVBox, 0x05); gr6 = ReadGr(pVBox, 0x06); gr8 = ReadGr(pVBox, 0x08); seq2 = ReadSeq(pVBox, 0x02); seq4 = ReadSeq(pVBox, 0x04); /* Force into colour mode */ WriteMiscOut(miscOut | 0x01); scrn = ReadSeq(pVBox, 0x01) & ~0x20; SeqReset(pVBox, TRUE); WriteSeq(0x01, scrn); SeqReset(pVBox, FALSE); WriteAttr(pVBox, 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(pVBox, 0x01) & ~0x20; SeqReset(pVBox, TRUE); WriteSeq(0x01, scrn); SeqReset(pVBox, FALSE); /* restore the registers that were changed */ WriteMiscOut(miscOut); WriteAttr(pVBox, 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]; VBOXPtr pVBox = VBOXGetRec(pScrn); Bool on = xf86IsUnblank(mode); if (on) SetTimeSinceLastInputEvent(); if (pScrn->vtSema) { unsigned char scrn = ReadSeq(pVBox, 0x01); if (on) scrn &= ~0x20; else scrn |= 0x20; SeqReset(pVBox, TRUE); WriteSeq(0x01, scrn); SeqReset(pVBox, 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)); }