Initial revisionXORG-STABLE

1 files changed, 1384 insertions, 0 deletions

diff --git a/src/riva_driver.c b/src/riva_driver.c
new file mode 100644
index 0000000..1b4ca07
--- /dev/null
+++ b/src/riva_driver.c
@@ -0,0 +1,1384 @@
+/*
+ * Copyright 1996-1997  David J. McKay
+ *
+ * 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
+ * DAVID J. MCKAY 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.
+ */
+
+/* Hacked together from mga driver and 3.3.4 NVIDIA driver by Jarno Paananen
+   <jpaana@s2.org> */
+
+/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/nv/riva_driver.c,v 1.5 2003/11/03 05:11:26 tsi Exp $ */
+
+#include "riva_include.h"
+
+#include "xf86int10.h"
+
+/*
+ * Forward definitions for the functions that make up the driver.
+ */
+/* Mandatory functions */
+static Bool    RivaPreInit(ScrnInfoPtr pScrn, int flags);
+static Bool    RivaScreenInit(int Index, ScreenPtr pScreen, int argc,
+                            char **argv);
+static Bool    RivaEnterVT(int scrnIndex, int flags);
+static Bool    RivaEnterVTFBDev(int scrnIndex, int flags);
+static void    RivaLeaveVT(int scrnIndex, int flags);
+static Bool    RivaCloseScreen(int scrnIndex, ScreenPtr pScreen);
+static Bool    RivaSaveScreen(ScreenPtr pScreen, int mode);
+
+/* Optional functions */
+static void    RivaFreeScreen(int scrnIndex, int flags);
+static ModeStatus RivaValidMode(int scrnIndex, DisplayModePtr mode,
+				Bool verbose, int flags);
+
+/* Internally used functions */
+
+static Bool	RivaMapMem(ScrnInfoPtr pScrn);
+static Bool	RivaMapMemFBDev(ScrnInfoPtr pScrn);
+static Bool	RivaUnmapMem(ScrnInfoPtr pScrn);
+static void	RivaSave(ScrnInfoPtr pScrn);
+static void	RivaRestore(ScrnInfoPtr pScrn);
+static Bool	RivaModeInit(ScrnInfoPtr pScrn, DisplayModePtr mode);
+
+
+/*
+ * 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 *vgahwSymbols[] = {
+    "vgaHWUnmapMem",
+    "vgaHWDPMSSet",
+    "vgaHWFreeHWRec",
+    "vgaHWGetHWRec",
+    "vgaHWGetIndex",
+    "vgaHWInit",
+    "vgaHWMapMem",
+    "vgaHWProtect",
+    "vgaHWRestore",
+    "vgaHWSave",
+    "vgaHWSaveScreen",
+    NULL
+};
+
+static const char *fbSymbols[] = {
+    "fbPictureInit",
+    "fbScreenInit",
+    NULL
+};
+
+static const char *xaaSymbols[] = {
+    "XAACopyROP",
+    "XAACreateInfoRec",
+    "XAADestroyInfoRec",
+    "XAAFallbackOps",
+    "XAAInit",
+    "XAAPatternROP",
+    NULL
+};
+
+static const char *ramdacSymbols[] = {
+    "xf86CreateCursorInfoRec",
+    "xf86DestroyCursorInfoRec",
+    "xf86InitCursor",
+    NULL
+};
+
+static const char *ddcSymbols[] = {
+    "xf86PrintEDID",
+    "xf86DoEDID_DDC2",
+    "xf86SetDDCproperties",
+    NULL
+};
+
+#ifdef XFree86LOADER
+static const char *vbeSymbols[] = {
+    "VBEInit",
+    "vbeFree",
+    "vbeDoEDID",
+    NULL
+};
+#endif
+
+static const char *i2cSymbols[] = {
+    "xf86CreateI2CBusRec",
+    "xf86I2CBusInit",
+    NULL
+};
+
+static const char *shadowSymbols[] = {
+    "ShadowFBInit",
+    NULL
+};
+
+static const char *fbdevHWSymbols[] = {
+    "fbdevHWInit",
+    "fbdevHWUseBuildinMode",
+
+    "fbdevHWGetVidmem",
+
+    /* colormap */
+    "fbdevHWLoadPalette",
+
+    /* ScrnInfo hooks */
+    "fbdevHWAdjustFrame",
+    "fbdevHWEnterVT",
+    "fbdevHWLeaveVT",
+    "fbdevHWModeInit",
+    "fbdevHWSave",
+    "fbdevHWSwitchMode",
+    "fbdevHWValidMode",
+
+    "fbdevHWMapMMIO",
+    "fbdevHWMapVidmem",
+
+    NULL
+};
+
+static const char *int10Symbols[] = {
+    "xf86FreeInt10",
+    "xf86InitInt10",
+    NULL
+};
+
+
+#ifdef XFree86LOADER
+
+static MODULESETUPPROTO(rivaSetup);
+
+static XF86ModuleVersionInfo rivaVersRec =
+{
+    "riva",
+    MODULEVENDORSTRING,
+    MODINFOSTRING1,
+    MODINFOSTRING2,
+    XF86_VERSION_CURRENT,
+    RIVA_MAJOR_VERSION, RIVA_MINOR_VERSION, RIVA_PATCHLEVEL,
+    ABI_CLASS_VIDEODRV,                     /* This is a video driver */
+    ABI_VIDEODRV_VERSION,
+    MOD_CLASS_VIDEODRV,
+    {0,0,0,0}
+};
+
+XF86ModuleData riva128ModuleData = { &rivaVersRec, rivaSetup, NULL };
+#endif
+
+
+typedef enum {
+    OPTION_SW_CURSOR,
+    OPTION_HW_CURSOR,
+    OPTION_NOACCEL,
+    OPTION_SHOWCACHE,
+    OPTION_SHADOW_FB,
+    OPTION_FBDEV,
+    OPTION_ROTATE
+} RivaOpts;
+
+
+static const OptionInfoRec RivaOptions[] = {
+    { OPTION_SW_CURSOR,         "SWcursor",     OPTV_BOOLEAN,   {0}, FALSE },
+    { OPTION_HW_CURSOR,         "HWcursor",     OPTV_BOOLEAN,   {0}, FALSE },
+    { OPTION_NOACCEL,           "NoAccel",      OPTV_BOOLEAN,   {0}, FALSE },
+    { OPTION_SHOWCACHE,         "ShowCache",    OPTV_BOOLEAN,   {0}, FALSE },
+    { OPTION_SHADOW_FB,         "ShadowFB",     OPTV_BOOLEAN,   {0}, FALSE },
+    { OPTION_FBDEV,             "UseFBDev",     OPTV_BOOLEAN,   {0}, FALSE },
+    { OPTION_ROTATE,		"Rotate",	OPTV_ANYSTR,	{0}, FALSE },
+    { -1,                       NULL,           OPTV_NONE,      {0}, FALSE }
+};
+
+/*
+ * This is intentionally screen-independent.  It indicates the binding
+ * choice made in the first PreInit.
+ */
+static int pix24bpp = 0;
+
+/* 
+ * ramdac info structure initialization
+ */
+static RivaRamdacRec DacInit = {
+        FALSE, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL,
+        0, NULL, NULL, NULL, NULL
+}; 
+
+
+
+static Bool
+RivaGetRec(ScrnInfoPtr pScrn)
+{
+    /*
+     * Allocate an RivaRec, and hook it into pScrn->driverPrivate.
+     * pScrn->driverPrivate is initialised to NULL, so we can check if
+     * the allocation has already been done.
+     */
+    if (pScrn->driverPrivate != NULL)
+        return TRUE;
+
+    pScrn->driverPrivate = xnfcalloc(sizeof(RivaRec), 1);
+    /* Initialise it */
+
+    RivaPTR(pScrn)->Dac = DacInit;
+    return TRUE;
+}
+
+static void
+RivaFreeRec(ScrnInfoPtr pScrn)
+{
+    if (pScrn->driverPrivate == NULL)
+        return;
+    xfree(pScrn->driverPrivate);
+    pScrn->driverPrivate = NULL;
+}
+
+
+#ifdef XFree86LOADER
+
+static pointer
+rivaSetup(pointer module, pointer opts, int *errmaj, int *errmin)
+{
+    static Bool setupDone = FALSE;
+
+    /* This module should be loaded only once, but check to be sure. */
+
+    if (!setupDone) {
+        setupDone = TRUE;
+
+        LoaderRefSymLists(vgahwSymbols, xaaSymbols, fbSymbols,
+                          ramdacSymbols, shadowSymbols,
+                          i2cSymbols, ddcSymbols, vbeSymbols,
+                          fbdevHWSymbols, int10Symbols, NULL);
+    } 
+    return (pointer)1;
+}
+
+
+#endif /* XFree86LOADER */
+
+const OptionInfoRec *
+RivaAvailableOptions(int chipid, int busid)
+{
+    return RivaOptions;
+}
+
+
+Bool
+RivaGetScrnInfoRec(PciChipsets *chips, int chip)
+{
+    ScrnInfoPtr pScrn;
+
+    pScrn = xf86ConfigPciEntity(NULL, 0, chip,
+                                chips, NULL, NULL, NULL,
+                                NULL, NULL);
+
+    if(!pScrn) return FALSE;
+
+    pScrn->driverVersion    = RIVA_VERSION;
+    pScrn->driverName       = RIVA_DRIVER_NAME;
+    pScrn->name             = RIVA_NAME;
+
+    pScrn->Probe            = NULL;
+    pScrn->PreInit          = RivaPreInit;
+    pScrn->ScreenInit       = RivaScreenInit;
+    pScrn->SwitchMode       = RivaSwitchMode;
+    pScrn->AdjustFrame      = RivaAdjustFrame;
+    pScrn->EnterVT          = RivaEnterVT;
+    pScrn->LeaveVT          = RivaLeaveVT;
+    pScrn->FreeScreen       = RivaFreeScreen;
+    pScrn->ValidMode        = RivaValidMode;
+
+    return TRUE;
+}
+
+/* Usually mandatory */
+Bool
+RivaSwitchMode(int scrnIndex, DisplayModePtr mode, int flags)
+{
+    return RivaModeInit(xf86Screens[scrnIndex], mode);
+}
+
+/*
+ * This function is used to initialize the Start Address - the first
+ * displayed location in the video memory.
+ */
+/* Usually mandatory */
+void 
+RivaAdjustFrame(int scrnIndex, int x, int y, int flags)
+{
+    ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
+    int startAddr;
+    RivaPtr pRiva = RivaPTR(pScrn);
+    RivaFBLayout *pLayout = &pRiva->CurrentLayout;
+
+    if(pRiva->ShowCache && y && pScrn->vtSema) 
+	y += pScrn->virtualY - 1;	
+
+    startAddr = (((y*pLayout->displayWidth)+x)*(pLayout->bitsPerPixel/8));
+    pRiva->riva.SetStartAddress(&pRiva->riva, startAddr);
+}
+
+
+/*
+ * This is called when VT switching back to the X server.  Its job is
+ * to reinitialise the video mode.
+ *
+ * We may wish to unmap video/MMIO memory too.
+ */
+
+/* Mandatory */
+static Bool
+RivaEnterVT(int scrnIndex, int flags)
+{
+    ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
+
+    if (!RivaModeInit(pScrn, pScrn->currentMode))
+        return FALSE;
+    RivaAdjustFrame(scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
+
+    return TRUE;
+}
+
+static Bool
+RivaEnterVTFBDev(int scrnIndex, int flags)
+{
+    fbdevHWEnterVT(scrnIndex,flags);
+    return TRUE;
+}
+
+/*
+ * This is called when VT switching away from the X server.  Its job is
+ * to restore the previous (text) mode.
+ *
+ * We may wish to remap video/MMIO memory too.
+ */
+
+/* Mandatory */
+static void
+RivaLeaveVT(int scrnIndex, int flags)
+{
+    ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
+    RivaPtr pRiva = RivaPTR(pScrn);
+
+    RivaRestore(pScrn);
+    pRiva->riva.LockUnlock(&pRiva->riva, 1);
+}
+
+
+
+/*
+ * This is called at the end of each server generation.  It restores the
+ * original (text) mode.  It should also unmap the video memory, and free
+ * any per-generation data allocated by the driver.  It should finish
+ * by unwrapping and calling the saved CloseScreen function.
+ */
+
+/* Mandatory */
+static Bool
+RivaCloseScreen(int scrnIndex, ScreenPtr pScreen)
+{
+    ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
+    RivaPtr pRiva = RivaPTR(pScrn);
+
+    if (pScrn->vtSema) {
+        RivaRestore(pScrn);
+        pRiva->riva.LockUnlock(&pRiva->riva, 1);
+    }
+
+    RivaUnmapMem(pScrn);
+    vgaHWUnmapMem(pScrn);
+    if (pRiva->AccelInfoRec)
+        XAADestroyInfoRec(pRiva->AccelInfoRec);
+    if (pRiva->CursorInfoRec)
+        xf86DestroyCursorInfoRec(pRiva->CursorInfoRec);
+    if (pRiva->ShadowPtr)
+        xfree(pRiva->ShadowPtr);
+    if (pRiva->DGAModes)
+        xfree(pRiva->DGAModes);
+    if ( pRiva->expandBuffer )
+        xfree(pRiva->expandBuffer);
+
+    pScrn->vtSema = FALSE;
+    pScreen->CloseScreen = pRiva->CloseScreen;
+    return (*pScreen->CloseScreen)(scrnIndex, pScreen);
+}
+
+/* Free up any persistent data structures */
+
+/* Optional */
+static void
+RivaFreeScreen(int scrnIndex, int flags)
+{
+    /*
+     * This only gets called when a screen is being deleted.  It does not
+     * get called routinely at the end of a server generation.
+     */
+    if (xf86LoaderCheckSymbol("vgaHWFreeHWRec"))
+	vgaHWFreeHWRec(xf86Screens[scrnIndex]);
+    RivaFreeRec(xf86Screens[scrnIndex]);
+}
+
+
+/* Checks if a mode is suitable for the selected chipset. */
+
+/* Optional */
+static ModeStatus
+RivaValidMode(int scrnIndex, DisplayModePtr mode, Bool verbose, int flags)
+{
+    return (MODE_OK);
+}
+
+static void
+rivaProbeDDC(ScrnInfoPtr pScrn, int index)
+{
+    vbeInfoPtr pVbe;
+
+    if (xf86LoadSubModule(pScrn, "vbe")) {
+        pVbe = VBEInit(NULL,index);
+        ConfiguredMonitor = vbeDoEDID(pVbe, NULL);
+	vbeFree(pVbe);
+    }
+}
+
+
+Bool RivaI2CInit(ScrnInfoPtr pScrn)
+{
+    char *mod = "i2c";
+
+    if (xf86LoadSubModule(pScrn, mod)) {
+        xf86LoaderReqSymLists(i2cSymbols,NULL);
+
+        mod = "ddc";
+        if(xf86LoadSubModule(pScrn, mod)) {
+            xf86LoaderReqSymLists(ddcSymbols, NULL);
+            return RivaDACi2cInit(pScrn);
+        } 
+    }
+
+    xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
+              "Couldn't load %s module.  DDC probing can't be done\n", mod);
+
+    return FALSE;
+}
+
+/* Mandatory */
+Bool
+RivaPreInit(ScrnInfoPtr pScrn, int flags)
+{
+    RivaPtr pRiva;
+    MessageType from;
+    int i;
+    ClockRangePtr clockRanges;
+    const char *s;
+
+    if (flags & PROBE_DETECT) {
+        rivaProbeDDC( pScrn, xf86GetEntityInfo(pScrn->entityList[0])->index );
+	return TRUE;
+    }
+
+    /*
+     * Note: This function is only called once at server startup, and
+     * not at the start of each server generation.  This means that
+     * only things that are persistent across server generations can
+     * be initialised here.  xf86Screens[] is (pScrn is a pointer to one
+     * of these).  Privates allocated using xf86AllocateScrnInfoPrivateIndex()  
+     * are too, and should be used for data that must persist across
+     * server generations.
+     *
+     * Per-generation data should be allocated with
+     * AllocateScreenPrivateIndex() from the ScreenInit() function.
+     */
+
+    /* Check the number of entities, and fail if it isn't one. */
+    if (pScrn->numEntities != 1)
+	return FALSE;
+
+    /* Allocate the RivaRec driverPrivate */
+    if (!RivaGetRec(pScrn)) {
+	return FALSE;
+    }
+    pRiva = RivaPTR(pScrn);
+
+    /* Get the entity, and make sure it is PCI. */
+    pRiva->pEnt = xf86GetEntityInfo(pScrn->entityList[0]);
+    if (pRiva->pEnt->location.type != BUS_PCI)
+	return FALSE;
+ 
+    /* Find the PCI info for this screen */
+    pRiva->PciInfo = xf86GetPciInfoForEntity(pRiva->pEnt->index);
+    pRiva->PciTag = pciTag(pRiva->PciInfo->bus, pRiva->PciInfo->device,
+			  pRiva->PciInfo->func);
+
+    pRiva->Primary = xf86IsPrimaryPci(pRiva->PciInfo);
+
+    /* Initialize the card through int10 interface if needed */
+    if (xf86LoadSubModule(pScrn, "int10")) {
+ 	xf86LoaderReqSymLists(int10Symbols, NULL);
+#if !defined(__alpha__) 
+        xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Initializing int10\n");
+        pRiva->pInt = xf86InitInt10(pRiva->pEnt->index);
+#endif
+    }
+   
+    xf86SetOperatingState(resVgaIo, pRiva->pEnt->index, ResUnusedOpr);
+    xf86SetOperatingState(resVgaMem, pRiva->pEnt->index, ResDisableOpr);
+
+    /* Set pScrn->monitor */
+    pScrn->monitor = pScrn->confScreen->monitor;
+
+    pRiva->ChipRev = pRiva->PciInfo->chipRev;
+    if((pRiva->PciInfo->vendor != 0x12D2) || (pRiva->PciInfo->chipType != 0x0018))
+    {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "This is not a RIVA 128\n");
+        xf86FreeInt10(pRiva->pInt);
+        return FALSE;
+    }
+
+    pScrn->chipset = "RIVA 128";
+
+    /*
+     * The first thing we should figure out is the depth, bpp, etc.
+     */
+
+    if (!xf86SetDepthBpp(pScrn, 15, 0, 0, Support32bppFb)) {
+	xf86FreeInt10(pRiva->pInt);
+	return FALSE;
+    } else {
+	/* Check that the returned depth is one we support */
+	switch (pScrn->depth) {
+            case 8:
+            case 15:
+            case 24:
+                break;
+            default:
+                xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                    "Given depth (%d) is not supported by this driver\n",
+                    pScrn->depth);
+		xf86FreeInt10(pRiva->pInt);
+                return FALSE;
+	}
+    }
+    xf86PrintDepthBpp(pScrn);
+
+    /* Get the depth24 pixmap format */
+    if (pScrn->depth == 24 && pix24bpp == 0)
+	pix24bpp = xf86GetBppFromDepth(pScrn, 24);
+
+    /*
+     * This must happen after pScrn->display has been set because
+     * xf86SetWeight references it.
+     */
+    if (pScrn->depth > 8) {
+	/* The defaults are OK for us */
+	rgb zeros = {0, 0, 0};
+
+	if (!xf86SetWeight(pScrn, zeros, zeros)) {
+	    xf86FreeInt10(pRiva->pInt);
+	    return FALSE;
+	}
+    }
+
+    if (!xf86SetDefaultVisual(pScrn, -1)) {
+	xf86FreeInt10(pRiva->pInt);
+	return FALSE;
+    } else {
+	/* We don't currently support DirectColor at > 8bpp */
+	if (pScrn->depth > 8 && (pScrn->defaultVisual != TrueColor)) {
+	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "Given default visual"
+		       " (%s) is not supported at depth %d\n",
+		       xf86GetVisualName(pScrn->defaultVisual), pScrn->depth);
+	    xf86FreeInt10(pRiva->pInt);
+	    return FALSE;
+	}
+    }
+
+    /* The vgahw module should be loaded here when needed */
+    if (!xf86LoadSubModule(pScrn, "vgahw")) {
+	xf86FreeInt10(pRiva->pInt);
+	return FALSE;
+    }
+    
+    xf86LoaderReqSymLists(vgahwSymbols, NULL);
+
+    /*
+     * Allocate a vgaHWRec
+     */
+    if (!vgaHWGetHWRec(pScrn)) {
+	xf86FreeInt10(pRiva->pInt);
+	return FALSE;
+    }
+    
+    /* We use a programmable clock */
+    pScrn->progClock = TRUE;
+
+    /* Collect all of the relevant option flags (fill in pScrn->options) */
+    xf86CollectOptions(pScrn, NULL);
+
+    /* Process the options */
+    if (!(pRiva->Options = xalloc(sizeof(RivaOptions))))
+	return FALSE;
+    memcpy(pRiva->Options, RivaOptions, sizeof(RivaOptions));
+    xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, pRiva->Options);
+
+    /* Set the bits per RGB for 8bpp mode */
+    if (pScrn->depth == 8)
+	pScrn->rgbBits = 8;
+
+    from = X_DEFAULT;
+    pRiva->HWCursor = TRUE;
+    /*
+     * The preferred method is to use the "hw cursor" option as a tri-state
+     * option, with the default set above.
+     */
+    if (xf86GetOptValBool(pRiva->Options, OPTION_HW_CURSOR, &pRiva->HWCursor)) {
+	from = X_CONFIG;
+    }
+    /* For compatibility, accept this too (as an override) */
+    if (xf86ReturnOptValBool(pRiva->Options, OPTION_SW_CURSOR, FALSE)) {
+	from = X_CONFIG;
+	pRiva->HWCursor = FALSE;
+    }
+    xf86DrvMsg(pScrn->scrnIndex, from, "Using %s cursor\n",
+		pRiva->HWCursor ? "HW" : "SW");
+    if (xf86ReturnOptValBool(pRiva->Options, OPTION_NOACCEL, FALSE)) {
+	pRiva->NoAccel = TRUE;
+	xf86DrvMsg(pScrn->scrnIndex, X_CONFIG, "Acceleration disabled\n");
+    }
+    if (xf86ReturnOptValBool(pRiva->Options, OPTION_SHOWCACHE, FALSE)) {
+	pRiva->ShowCache = TRUE;
+	xf86DrvMsg(pScrn->scrnIndex, X_CONFIG, "ShowCache enabled\n");
+    }
+    if (xf86ReturnOptValBool(pRiva->Options, OPTION_SHADOW_FB, FALSE)) {
+	pRiva->ShadowFB = TRUE;
+	pRiva->NoAccel = TRUE;
+	xf86DrvMsg(pScrn->scrnIndex, X_CONFIG, 
+		"Using \"Shadow Framebuffer\" - acceleration disabled\n");
+    }
+    if (xf86ReturnOptValBool(pRiva->Options, OPTION_FBDEV, FALSE)) {
+	pRiva->FBDev = TRUE;
+	xf86DrvMsg(pScrn->scrnIndex, X_CONFIG, 
+		"Using framebuffer device\n");
+    }
+    if (pRiva->FBDev) {
+	/* check for linux framebuffer device */
+	if (!xf86LoadSubModule(pScrn, "fbdevhw")) {
+	    xf86FreeInt10(pRiva->pInt);
+	    return FALSE;
+	}
+	
+	xf86LoaderReqSymLists(fbdevHWSymbols, NULL);
+	if (!fbdevHWInit(pScrn, pRiva->PciInfo, NULL)) {
+	    xf86FreeInt10(pRiva->pInt);
+	    return FALSE;
+	}
+	pScrn->SwitchMode    = fbdevHWSwitchMode;
+	pScrn->AdjustFrame   = fbdevHWAdjustFrame;
+	pScrn->EnterVT       = RivaEnterVTFBDev;
+	pScrn->LeaveVT       = fbdevHWLeaveVT;
+	pScrn->ValidMode     = fbdevHWValidMode;
+    }
+    pRiva->Rotate = 0;
+    if ((s = xf86GetOptValString(pRiva->Options, OPTION_ROTATE))) {
+      if(!xf86NameCmp(s, "CW")) {
+	pRiva->ShadowFB = TRUE;
+	pRiva->NoAccel = TRUE;
+	pRiva->HWCursor = FALSE;
+	pRiva->Rotate = 1;
+	xf86DrvMsg(pScrn->scrnIndex, X_CONFIG, 
+		"Rotating screen clockwise - acceleration disabled\n");
+      } else
+      if(!xf86NameCmp(s, "CCW")) {
+	pRiva->ShadowFB = TRUE;
+	pRiva->NoAccel = TRUE;
+	pRiva->HWCursor = FALSE;
+	pRiva->Rotate = -1;
+	xf86DrvMsg(pScrn->scrnIndex, X_CONFIG, 
+		"Rotating screen counter clockwise - acceleration disabled\n");
+      } else {
+	xf86DrvMsg(pScrn->scrnIndex, X_CONFIG, 
+		"\"%s\" is not a valid value for Option \"Rotate\"\n", s);
+	xf86DrvMsg(pScrn->scrnIndex, X_INFO, 
+		"Valid options are \"CW\" or \"CCW\"\n");
+      }
+    }
+
+    if (pRiva->pEnt->device->MemBase != 0) {
+	/* Require that the config file value matches one of the PCI values. */
+	if (!xf86CheckPciMemBase(pRiva->PciInfo, pRiva->pEnt->device->MemBase)) {
+	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+		"MemBase 0x%08lX doesn't match any PCI base register.\n",
+		pRiva->pEnt->device->MemBase);
+	    xf86FreeInt10(pRiva->pInt);
+	    RivaFreeRec(pScrn);
+	    return FALSE;
+	}
+	pRiva->FbAddress = pRiva->pEnt->device->MemBase;
+	from = X_CONFIG;
+    } else {
+	int i = 1;
+	pRiva->FbBaseReg = i;
+	if (pRiva->PciInfo->memBase[i] != 0) {
+	    pRiva->FbAddress = pRiva->PciInfo->memBase[i] & 0xff800000;
+	    from = X_PROBED;
+	} else {
+	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+			   "No valid FB address in PCI config space\n");
+	    xf86FreeInt10(pRiva->pInt);
+	    RivaFreeRec(pScrn);
+	    return FALSE;
+	}
+    }
+    xf86DrvMsg(pScrn->scrnIndex, from, "Linear framebuffer at 0x%lX\n",
+	       (unsigned long)pRiva->FbAddress);
+
+    if (pRiva->pEnt->device->IOBase != 0) {
+	/* Require that the config file value matches one of the PCI values. */
+	if (!xf86CheckPciMemBase(pRiva->PciInfo, pRiva->pEnt->device->IOBase)) {
+	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+		"IOBase 0x%08lX doesn't match any PCI base register.\n",
+		pRiva->pEnt->device->IOBase);
+	    xf86FreeInt10(pRiva->pInt);
+	    RivaFreeRec(pScrn);
+	    return FALSE;
+	}
+	pRiva->IOAddress = pRiva->pEnt->device->IOBase;
+	from = X_CONFIG;
+    } else {
+	int i = 0;
+	if (pRiva->PciInfo->memBase[i] != 0) {
+	    pRiva->IOAddress = pRiva->PciInfo->memBase[i] & 0xffffc000;
+	    from = X_PROBED;
+	} else {
+	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+			"No valid MMIO address in PCI config space\n");
+	    xf86FreeInt10(pRiva->pInt);
+	    RivaFreeRec(pScrn);
+	    return FALSE;
+	}
+    }
+    xf86DrvMsg(pScrn->scrnIndex, from, "MMIO registers at 0x%lX\n",
+	       (unsigned long)pRiva->IOAddress);
+     
+    if (xf86RegisterResources(pRiva->pEnt->index, NULL, ResExclusive)) {
+	xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+		"xf86RegisterResources() found resource conflicts\n");
+	xf86FreeInt10(pRiva->pInt);
+	RivaFreeRec(pScrn);
+	return FALSE;
+    }
+
+    Riva3Setup(pScrn);
+
+    /*
+     * If the user has specified the amount of memory in the XF86Config
+     * file, we respect that setting.
+     */
+    if (pRiva->pEnt->device->videoRam != 0) {
+	pScrn->videoRam = pRiva->pEnt->device->videoRam;
+	from = X_CONFIG;
+    } else {
+	if (pRiva->FBDev) {
+	    pScrn->videoRam = fbdevHWGetVidmem(pScrn)/1024;
+	} else {
+            pScrn->videoRam = pRiva->riva.RamAmountKBytes;
+	}
+	from = X_PROBED;
+    }
+    xf86DrvMsg(pScrn->scrnIndex, from, "VideoRAM: %d kBytes\n",
+               pScrn->videoRam);
+	
+    pRiva->FbMapSize = pScrn->videoRam * 1024;
+
+    /*
+     * If the driver can do gamma correction, it should call xf86SetGamma()
+     * here.
+     */
+
+    {
+	Gamma zeros = {0.0, 0.0, 0.0};
+
+	if (!xf86SetGamma(pScrn, zeros)) {
+	    xf86FreeInt10(pRiva->pInt);
+	    return FALSE;
+	}
+    }
+
+    pRiva->FbUsableSize = pRiva->FbMapSize - (32 * 1024);
+
+    /*
+     * Setup the ClockRanges, which describe what clock ranges are available,
+     * and what sort of modes they can be used for.
+     */
+
+    pRiva->MinClock = 12000;
+    pRiva->MaxClock = pRiva->riva.MaxVClockFreqKHz;
+
+    clockRanges = xnfcalloc(sizeof(ClockRange), 1);
+    clockRanges->next = NULL;
+    clockRanges->minClock = pRiva->MinClock;
+    clockRanges->maxClock = pRiva->MaxClock;
+    clockRanges->clockIndex = -1;		/* programmable */
+    clockRanges->interlaceAllowed = TRUE;
+    clockRanges->doubleScanAllowed = TRUE;
+
+
+    /*
+     * xf86ValidateModes will check that the mode HTotal and VTotal values
+     * don't exceed the chipset's limit if pScrn->maxHValue and
+     * pScrn->maxVValue are set.  Since our RivaValidMode() already takes
+     * care of this, we don't worry about setting them here.
+     */
+    i = xf86ValidateModes(pScrn, pScrn->monitor->Modes,
+                          pScrn->display->modes, clockRanges,
+                          NULL, 256, 2048,
+                          32 * pScrn->bitsPerPixel, 128, 2048,
+                          pScrn->display->virtualX,
+                          pScrn->display->virtualY,
+                          pRiva->FbUsableSize,
+                          LOOKUP_BEST_REFRESH);
+
+    if (i < 1 && pRiva->FBDev) {
+	fbdevHWUseBuildinMode(pScrn);
+	pScrn->displayWidth = pScrn->virtualX; /* FIXME: might be wrong */
+	i = 1;
+    }
+    if (i == -1) {
+	xf86FreeInt10(pRiva->pInt);
+	RivaFreeRec(pScrn);
+	return FALSE;
+    }
+
+    /* Prune the modes marked as invalid */
+    xf86PruneDriverModes(pScrn);
+
+    if (i == 0 || pScrn->modes == NULL) {
+	xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "No valid modes found\n");
+	xf86FreeInt10(pRiva->pInt);
+	RivaFreeRec(pScrn);
+	return FALSE;
+    }
+
+    /*
+     * Set the CRTC parameters for all of the modes based on the type
+     * of mode, and the chipset's interlace requirements.
+     *
+     * Calling this is required if the mode->Crtc* values are used by the
+     * driver and if the driver doesn't provide code to set them.  They
+     * are not pre-initialised at all.
+     */
+    xf86SetCrtcForModes(pScrn, 0);
+
+    /* Set the current mode to the first in the list */
+    pScrn->currentMode = pScrn->modes;
+
+    /* Print the list of modes being used */
+    xf86PrintModes(pScrn);
+
+    /* Set display resolution */
+    xf86SetDpi(pScrn, 0, 0);
+
+
+    /*
+     * XXX This should be taken into account in some way in the mode valdation
+     * section.
+     */
+
+    if (xf86LoadSubModule(pScrn, "fb") == NULL) {
+	xf86FreeInt10(pRiva->pInt);
+	RivaFreeRec(pScrn);
+	return FALSE;
+    }
+
+    xf86LoaderReqSymLists(fbSymbols, NULL);
+    
+    /* Load XAA if needed */
+    if (!pRiva->NoAccel) {
+	if (!xf86LoadSubModule(pScrn, "xaa")) {
+	    xf86FreeInt10(pRiva->pInt);
+	    RivaFreeRec(pScrn);
+	    return FALSE;
+	}
+	xf86LoaderReqSymLists(xaaSymbols, NULL);
+    }
+
+    /* Load ramdac if needed */
+    if (pRiva->HWCursor) {
+	if (!xf86LoadSubModule(pScrn, "ramdac")) {
+	    xf86FreeInt10(pRiva->pInt);
+	    RivaFreeRec(pScrn);
+	    return FALSE;
+	}
+	xf86LoaderReqSymLists(ramdacSymbols, NULL);
+    }
+
+    /* Load shadowfb if needed */
+    if (pRiva->ShadowFB) {
+	if (!xf86LoadSubModule(pScrn, "shadowfb")) {
+	    xf86FreeInt10(pRiva->pInt);
+	    RivaFreeRec(pScrn);
+	    return FALSE;
+	}
+	xf86LoaderReqSymLists(shadowSymbols, NULL);
+    }
+
+    pRiva->CurrentLayout.bitsPerPixel = pScrn->bitsPerPixel;
+    pRiva->CurrentLayout.depth = pScrn->depth;
+    pRiva->CurrentLayout.displayWidth = pScrn->displayWidth;
+    pRiva->CurrentLayout.weight.red = pScrn->weight.red;
+    pRiva->CurrentLayout.weight.green = pScrn->weight.green;
+    pRiva->CurrentLayout.weight.blue = pScrn->weight.blue;
+    pRiva->CurrentLayout.mode = pScrn->currentMode;
+
+    xf86FreeInt10(pRiva->pInt);
+
+    pRiva->pInt = NULL;
+    return TRUE;
+}
+
+
+/*
+ * Map the framebuffer and MMIO memory.
+ */
+
+static Bool
+RivaMapMem(ScrnInfoPtr pScrn)
+{
+    RivaPtr pRiva;
+        
+    pRiva = RivaPTR(pScrn);
+
+    /*
+     * Map IO registers to virtual address space
+     */ 
+    pRiva->IOBase = xf86MapPciMem(pScrn->scrnIndex,
+                                VIDMEM_MMIO | VIDMEM_READSIDEEFFECT,
+                                pRiva->PciTag, pRiva->IOAddress, 0x1000000);
+    if (pRiva->IOBase == NULL)
+	return FALSE;
+
+    pRiva->FbBase = xf86MapPciMem(pScrn->scrnIndex, VIDMEM_FRAMEBUFFER,
+				 pRiva->PciTag, pRiva->FbAddress,
+				 pRiva->FbMapSize);
+    if (pRiva->FbBase == NULL)
+	return FALSE;
+
+    pRiva->FbStart = pRiva->FbBase;
+
+    return TRUE;
+}
+
+Bool
+RivaMapMemFBDev(ScrnInfoPtr pScrn)
+{
+    RivaPtr pRiva;
+
+    pRiva = RivaPTR(pScrn);
+
+    pRiva->FbBase = fbdevHWMapVidmem(pScrn);
+    if (pRiva->FbBase == NULL)
+        return FALSE;
+
+    pRiva->IOBase = fbdevHWMapMMIO(pScrn);
+    if (pRiva->IOBase == NULL)
+        return FALSE;
+
+    pRiva->FbStart = pRiva->FbBase;
+
+    return TRUE;
+}
+
+/*
+ * Unmap the framebuffer and MMIO memory.
+ */
+
+static Bool
+RivaUnmapMem(ScrnInfoPtr pScrn)
+{
+    RivaPtr pRiva;
+    
+    pRiva = RivaPTR(pScrn);
+
+    /*
+     * Unmap IO registers to virtual address space
+     */ 
+    xf86UnMapVidMem(pScrn->scrnIndex, (pointer)pRiva->IOBase, 0x1000000);
+    pRiva->IOBase = NULL;
+
+    xf86UnMapVidMem(pScrn->scrnIndex, (pointer)pRiva->FbBase, pRiva->FbMapSize);
+    pRiva->FbBase = NULL;
+    pRiva->FbStart = NULL;
+
+    return TRUE;
+}
+
+
+/*
+ * Initialise a new mode. 
+ */
+
+static Bool
+RivaModeInit(ScrnInfoPtr pScrn, DisplayModePtr mode)
+{
+    vgaHWPtr hwp = VGAHWPTR(pScrn);
+    vgaRegPtr vgaReg;
+    RivaPtr pRiva = RivaPTR(pScrn);
+    RivaRegPtr rivaReg;
+
+    
+    /* Initialise the ModeReg values */
+    if (!vgaHWInit(pScrn, mode))
+	return FALSE;
+    pScrn->vtSema = TRUE;
+
+    vgaReg = &hwp->ModeReg;
+    rivaReg = &pRiva->ModeReg;
+
+    if(!(*pRiva->ModeInit)(pScrn, mode))
+        return FALSE;
+
+    pRiva->riva.LockUnlock(&pRiva->riva, 0);
+
+    /* Program the registers */
+    vgaHWProtect(pScrn, TRUE);
+
+    (*pRiva->Restore)(pScrn, vgaReg, rivaReg, FALSE);
+
+    RivaResetGraphics(pScrn);
+
+    vgaHWProtect(pScrn, FALSE);
+
+    pRiva->CurrentLayout.mode = mode;
+
+    return TRUE;
+}
+
+/*
+ * Restore the initial (text) mode.
+ */
+static void 
+RivaRestore(ScrnInfoPtr pScrn)
+{
+    vgaHWPtr hwp = VGAHWPTR(pScrn);
+    vgaRegPtr vgaReg = &hwp->SavedReg;
+    RivaPtr pRiva = RivaPTR(pScrn);
+    RivaRegPtr rivaReg = &pRiva->SavedReg;
+
+
+    pRiva->riva.LockUnlock(&pRiva->riva, 0);
+
+    /* Only restore text mode fonts/text for the primary card */
+    vgaHWProtect(pScrn, TRUE);
+    (*pRiva->Restore)(pScrn, vgaReg, rivaReg, pRiva->Primary);
+    vgaHWProtect(pScrn, FALSE);
+}
+
+static void
+RivaDPMSSet(ScrnInfoPtr pScrn, int PowerManagementMode, int flags)
+{
+  unsigned char crtc1A;
+  vgaHWPtr hwp = VGAHWPTR(pScrn);
+
+  if (!pScrn->vtSema) return;
+
+  crtc1A = hwp->readCrtc(hwp, 0x1A) & ~0xC0;
+
+  switch (PowerManagementMode) {
+  case DPMSModeStandby:  /* HSync: Off, VSync: On */
+    crtc1A |= 0x80;
+    break;
+  case DPMSModeSuspend:  /* HSync: On, VSync: Off */
+    crtc1A |= 0x40;
+    break;
+  case DPMSModeOff:      /* HSync: Off, VSync: Off */
+    crtc1A |= 0xC0;
+    break;
+  case DPMSModeOn:       /* HSync: On, VSync: On */
+  default:
+    break;
+  }
+
+  /* vgaHWDPMSSet will merely cut the dac output */
+  vgaHWDPMSSet(pScrn, PowerManagementMode, flags);
+
+  hwp->writeCrtc(hwp, 0x1A, crtc1A);
+}
+
+
+/* Mandatory */
+
+/* This gets called at the start of each server generation */
+
+static Bool
+RivaScreenInit(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
+{
+    ScrnInfoPtr pScrn;
+    vgaHWPtr hwp;
+    RivaPtr pRiva;
+    RivaRamdacPtr Rivadac;
+    int ret;
+    VisualPtr visual;
+    unsigned char *FBStart;
+    int width, height, displayWidth;
+    BoxRec AvailFBArea;
+
+    /* 
+     * First get the ScrnInfoRec
+     */
+    pScrn = xf86Screens[pScreen->myNum];
+
+
+    hwp = VGAHWPTR(pScrn);
+    pRiva = RivaPTR(pScrn);
+    Rivadac = &pRiva->Dac;
+
+    /* Map the Riva memory and MMIO areas */
+    if (pRiva->FBDev) {
+	if (!RivaMapMemFBDev(pScrn))
+	    return FALSE;
+    } else {
+	if (!RivaMapMem(pScrn))
+	    return FALSE;
+    }
+    
+    /* Map the VGA memory when the primary video */
+    if (pRiva->Primary && !pRiva->FBDev) {
+	hwp->MapSize = 0x10000;
+	if (!vgaHWMapMem(pScrn))
+	    return FALSE;
+    }
+
+    if (pRiva->FBDev) {
+	fbdevHWSave(pScrn);
+	if (!fbdevHWModeInit(pScrn, pScrn->currentMode))
+	    return FALSE;
+    } else {
+	/* Save the current state */
+	RivaSave(pScrn);
+	/* Initialise the first mode */
+	if (!RivaModeInit(pScrn, pScrn->currentMode))
+	    return FALSE;
+    }
+
+
+    /* Darken the screen for aesthetic reasons and set the viewport */
+    RivaSaveScreen(pScreen, SCREEN_SAVER_ON);
+    pScrn->AdjustFrame(scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
+
+
+    /*
+     * The next step is to setup the screen's visuals, and initialise the
+     * framebuffer code.  In cases where the framebuffer's default
+     * choices for things like visual layouts and bits per RGB are OK,
+     * this may be as simple as calling the framebuffer's ScreenInit()
+     * function.  If not, the visuals will need to be setup before calling
+     * a fb ScreenInit() function and fixed up after.
+     *
+     * For most PC hardware at depths >= 8, the defaults that cfb uses
+     * are not appropriate.  In this driver, we fixup the visuals after.
+     */
+
+    /*
+     * Reset the visual list.
+     */
+    miClearVisualTypes();
+
+    /* Setup the visuals we support. */
+
+    if (pScrn->bitsPerPixel > 8) {
+          if (!miSetVisualTypes(pScrn->depth, TrueColorMask, 8,
+                                pScrn->defaultVisual))
+              return FALSE;
+    } else {
+          if (!miSetVisualTypes(pScrn->depth, 
+                                miGetDefaultVisualMask(pScrn->depth), 8,
+                                pScrn->defaultVisual))
+	  return FALSE;
+     }
+    if (!miSetPixmapDepths ()) return FALSE;
+
+
+    /*
+     * Call the framebuffer layer's ScreenInit function, and fill in other
+     * pScreen fields.
+     */
+
+    width = pScrn->virtualX;
+    height = pScrn->virtualY;
+    displayWidth = pScrn->displayWidth;
+
+
+    if(pRiva->Rotate) {
+	height = pScrn->virtualX;
+	width = pScrn->virtualY;
+    }
+
+    if(pRiva->ShadowFB) {
+ 	pRiva->ShadowPitch = BitmapBytePad(pScrn->bitsPerPixel * width);
+        pRiva->ShadowPtr = xalloc(pRiva->ShadowPitch * height);
+	displayWidth = pRiva->ShadowPitch / (pScrn->bitsPerPixel >> 3);
+        FBStart = pRiva->ShadowPtr;
+    } else {
+	pRiva->ShadowPtr = NULL;
+	FBStart = pRiva->FbStart;
+    }
+
+    switch (pScrn->bitsPerPixel) {
+        case 8:
+        case 16:
+        case 32:
+            ret = fbScreenInit(pScreen, FBStart, width, height,
+                               pScrn->xDpi, pScrn->yDpi,
+                               displayWidth, pScrn->bitsPerPixel);
+            break;
+        default:
+            xf86DrvMsg(scrnIndex, X_ERROR,
+                       "Internal error: invalid bpp (%d) in RivaScreenInit\n",
+                       pScrn->bitsPerPixel);
+            ret = FALSE;
+            break;
+    }
+    if (!ret)
+	return FALSE;
+
+
+    if (pScrn->bitsPerPixel > 8) {
+        /* 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;
+	    }
+	}
+    }
+
+    fbPictureInit (pScreen, 0, 0);
+    
+    xf86SetBlackWhitePixels(pScreen);
+
+
+    if(!pRiva->ShadowFB) /* hardware cursor needs to wrap this layer */
+	RivaDGAInit(pScreen);
+
+    AvailFBArea.x1 = 0;
+    AvailFBArea.y1 = 0;
+    AvailFBArea.x2 = pScrn->displayWidth;
+    AvailFBArea.y2 = (min(pRiva->FbUsableSize, 32*1024*1024)) / 
+                     (pScrn->displayWidth * pScrn->bitsPerPixel / 8);
+    xf86InitFBManager(pScreen, &AvailFBArea);
+    
+    if (!pRiva->NoAccel)
+	RivaAccelInit(pScreen);
+    
+    miInitializeBackingStore(pScreen);
+    xf86SetBackingStore(pScreen);
+    xf86SetSilkenMouse(pScreen);
+
+
+    /* Initialize software cursor.  
+	Must precede creation of the default colormap */
+    miDCInitialize(pScreen, xf86GetPointerScreenFuncs());
+
+
+    /* Initialize HW cursor layer. 
+	Must follow software cursor initialization*/
+    if (pRiva->HWCursor) { 
+	if(!RivaCursorInit(pScreen))
+	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR, 
+		"Hardware cursor initialization failed\n");
+    }
+
+    /* Initialise default colourmap */
+    if (!miCreateDefColormap(pScreen))
+	return FALSE;
+
+    
+    /* Initialize colormap layer.  
+	Must follow initialization of the default colormap */
+    if(!xf86HandleColormaps(pScreen, 256, 8,
+	(pRiva->FBDev ? fbdevHWLoadPalette : Rivadac->LoadPalette), 
+	NULL, CMAP_RELOAD_ON_MODE_SWITCH | CMAP_PALETTED_TRUECOLOR))
+	return FALSE;
+
+    
+    if(pRiva->ShadowFB) {
+	RefreshAreaFuncPtr refreshArea = RivaRefreshArea;
+
+	if(pRiva->Rotate) {
+   	   pRiva->PointerMoved = pScrn->PointerMoved;
+	   pScrn->PointerMoved = RivaPointerMoved;
+
+	   switch(pScrn->bitsPerPixel) {
+               case 8:	refreshArea = RivaRefreshArea8;	break;
+               case 16:	refreshArea = RivaRefreshArea16;	break;
+               case 32:	refreshArea = RivaRefreshArea32;	break;
+	   }
+	}
+
+	ShadowFBInit(pScreen, refreshArea);
+    }
+
+    xf86DPMSInit(pScreen, RivaDPMSSet, 0);
+
+    
+    pScrn->memPhysBase = pRiva->FbAddress;
+    pScrn->fbOffset = 0;
+
+    pScreen->SaveScreen = RivaSaveScreen;
+
+    /* Wrap the current CloseScreen function */
+    pRiva->CloseScreen = pScreen->CloseScreen;
+    pScreen->CloseScreen = RivaCloseScreen;
+
+    /* Report any unused options (only for the first generation) */
+    if (serverGeneration == 1) {
+	xf86ShowUnusedOptions(pScrn->scrnIndex, pScrn->options);
+    }
+    /* Done */
+    return TRUE;
+}
+
+/* Free up any persistent data structures */
+
+
+/* Do screen blanking */
+
+/* Mandatory */
+static Bool
+RivaSaveScreen(ScreenPtr pScreen, int mode)
+{
+    return vgaHWSaveScreen(pScreen, mode);
+}
+
+static void
+RivaSave(ScrnInfoPtr pScrn)
+{
+    RivaPtr pRiva = RivaPTR(pScrn);
+    RivaRegPtr rivaReg = &pRiva->SavedReg;
+    vgaHWPtr pVga = VGAHWPTR(pScrn);
+    vgaRegPtr vgaReg = &pVga->SavedReg;
+
+    (*pRiva->Save)(pScrn, vgaReg, rivaReg, pRiva->Primary);
+}
+