/********************************************************************
Copyright 1998, 1999 by Precision Insight, Inc., Cedar Park, Texas.

                        All Rights Reserved

Permission to use, copy, modify, distribute, and sell this software and
its documentation for any purpose is hereby granted without fee,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation, and that the name of Precision Insight not be
used in advertising or publicity pertaining to distribution of the
software without specific, written prior permission.  Precision Insight
and its suppliers make no representations about the suitability of this
software for any purpose.  It is provided "as is" without express or 
implied warranty.

PRECISION INSIGHT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
**********************************************************************/
/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/neomagic/neo_2200.c,v 1.19tsi Exp $ */
/*
 * The original Precision Insight driver for
 * XFree86 v.3.3 has been sponsored by Red Hat.
 *
 * Authors:
 *   Jens Owen (jens@tungstengraphics.com)
 *   Kevin E. Martin (kevin@precisioninsight.com)
 *
 * Port to Xfree86 v.4.0
 *   1998, 1999 by Egbert Eich (Egbert.Eich@Physik.TU-Darmstadt.DE)
 */

#include "xf86.h"
#include "xf86_OSproc.h"
#include "xf86_ansic.h"
#include "compiler.h"

/* Drivers that use XAA need this */
#include "xf86fbman.h"

#include "miline.h"

#include "neo.h"
#include "neo_reg.h"
#include "neo_macros.h"

static void Neo2200Sync(ScrnInfoPtr pScrn);
static void Neo2200SetupForScreenToScreenCopy(ScrnInfoPtr pScrn, int xdir,
					      int ydir, int rop,
					      unsigned int planemask,
					      int trans_color);
#ifdef NOT_BROKEN
static void Neo2200SubsequentScreenToScreenCopy(ScrnInfoPtr pScrn, int srcX,
						int srcY, int dstX, int dstY,
						int w, int h);
#else
static void Neo2200SubsequentScreenToScreenCopyBroken(ScrnInfoPtr pScrn, int srcX,
						int srcY, int dstX, int dstY,
						int w, int h);
#endif
static void Neo2200SetupForSolidFillRect(ScrnInfoPtr pScrn, int color, int rop,
				  unsigned int planemask);
static void Neo2200SubsequentSolidFillRect(ScrnInfoPtr pScrn, int x, int y,
					   int w, int h);
static void Neo2200SetupForScanlineCPUToScreenColorExpandFill(
                                                      ScrnInfoPtr pScrn,
						      int fg, int bg,
						      int rop,
						unsigned int planemask);
static void Neo2200SubsequentScanlineCPUToScreenColorExpandFill(
                                                        ScrnInfoPtr pScrn,
							int x, int y,
							int w, int h,
							int skipleft);
static void Neo2200SubsequentColorExpandScanline(ScrnInfoPtr pScrn, int bufno);
#if 0
static void Neo2200SetupForMono8x8PatternFill(ScrnInfoPtr pScrn,
					       int patternx,
					       int patterny,
					       int bg,
					       int fg,
					       int rop, 
					       unsigned int planemask);
static void Neo2200SubsequentMono8x8PatternFill(ScrnInfoPtr pScrn,
						 int patternx,
						 int patterny, 
						 int x, int y,
						 int w, int h);
#endif


static unsigned int neo2200Rop[16] = {
    0x000000,    /* 0x0000 - GXclear         */
    0x080000,    /* 0x1000 - GXand           */
    0x040000,    /* 0x0100 - GXandReverse    */
    0x0c0000,    /* 0x1100 - GXcopy          */
    0x020000,    /* 0x0010 - GXandInvert     */
    0x0a0000,    /* 0x1010 - GXnoop          */
    0x060000,    /* 0x0110 - GXxor           */
    0x0e0000,    /* 0x1110 - GXor            */
    0x010000,    /* 0x0001 - GXnor           */
    0x090000,    /* 0x1001 - GXequiv         */
    0x050000,    /* 0x0101 - GXinvert        */
    0x0d0000,    /* 0x1101 - GXorReverse     */
    0x030000,    /* 0x0011 - GXcopyInvert    */
    0x0b0000,    /* 0x1011 - GXorInverted    */
    0x070000,    /* 0x0111 - GXnand          */
    0x0f0000     /* 0x1111 - GXset           */
};

Bool 
Neo2200AccelInit(ScreenPtr pScreen)
{
    XAAInfoRecPtr infoPtr;
    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
    NEOPtr nPtr = NEOPTR(pScrn);
    NEOACLPtr nAcl = NEOACLPTR(pScrn);

    nPtr->AccelInfoRec = infoPtr = XAACreateInfoRec();
    if(!infoPtr) return FALSE;

    /*
     * Set up the main acceleration flags.
     */
    infoPtr->Flags = LINEAR_FRAMEBUFFER | OFFSCREEN_PIXMAPS;
    if(nAcl->cacheEnd > nAcl->cacheStart) infoPtr->Flags |= PIXMAP_CACHE;
#if 0
    infoPtr->PixmapCacheFlags |= DO_NOT_BLIT_STIPPLES;
#endif
    /* sync */
    infoPtr->Sync = Neo2200Sync;

    /* screen to screen copy */
    infoPtr->ScreenToScreenCopyFlags = (NO_TRANSPARENCY | NO_PLANEMASK);
    infoPtr->SetupForScreenToScreenCopy = 
	Neo2200SetupForScreenToScreenCopy;
    infoPtr->SubsequentScreenToScreenCopy
#ifdef NOT_BROKEN
	= Neo2200SubsequentScreenToScreenCopy;
#else
	= Neo2200SubsequentScreenToScreenCopyBroken;
#endif

    /* solid filled rectangles */
    infoPtr->SolidFillFlags = NO_PLANEMASK;
    infoPtr->SetupForSolidFill = 
	Neo2200SetupForSolidFillRect;
    infoPtr->SubsequentSolidFillRect = 
	Neo2200SubsequentSolidFillRect;

    /* cpu to screen color expansion */
    /*
     * We do CPUToScreenColorExpand (ab)using the Scanline functions:
     * the neo chipsets need byte padding however we can only do dword
     * padding. Fortunately the graphics engine doesn't choke if we
     * transfer up to 3 bytes more than it wants.
     */

    if (!nPtr->strangeLockups) {
	
	infoPtr->ScanlineCPUToScreenColorExpandFillFlags = ( NO_PLANEMASK |
#ifdef NEO_DO_CLIPPING
						LEFT_EDGE_CLIPPING |
#endif
						SCANLINE_PAD_DWORD |
						CPU_TRANSFER_PAD_DWORD |
						BIT_ORDER_IN_BYTE_MSBFIRST );
	infoPtr->ScanlineColorExpandBuffers =
	    (unsigned char **)xnfalloc(sizeof(char*));
	infoPtr->ScanlineColorExpandBuffers[0] =
	    (unsigned char *)(nPtr->NeoMMIOBase + 0x100000);
	infoPtr->NumScanlineColorExpandBuffers = 1;
	infoPtr->SetupForScanlineCPUToScreenColorExpandFill = 
	    Neo2200SetupForScanlineCPUToScreenColorExpandFill;
	infoPtr->SubsequentScanlineCPUToScreenColorExpandFill = 
	    Neo2200SubsequentScanlineCPUToScreenColorExpandFill;
	infoPtr->SubsequentColorExpandScanline =
	    Neo2200SubsequentColorExpandScanline;
    }
    
#if 0
    /* 8x8 pattern fills */
    infoPtr->Mono8x8PatternFillFlags = NO_PLANEMASK
	| HARDWARE_PATTERN_PROGRAMMED_ORIGIN
	|BIT_ORDER_IN_BYTE_MSBFIRST;
    
    infoPtr->SetupForMono8x8PatternFill = 
	Neo2200SetupForMono8x8PatternFill;
    infoPtr->SubsequentMono8x8PatternFillRect = 
	Neo2200SubsequentMono8x8PatternFill;
#endif

    /*
     * Setup some global variables
     */

    /* Initialize for 8bpp or 15/16bpp support accelerated */
    switch (pScrn->bitsPerPixel) {
    case 8:
	nAcl->BltModeFlags = NEO_MODE1_DEPTH8;
        nAcl->PixelWidth = 1;
	break;
    case 15:
    case 16:
	nAcl->BltModeFlags = NEO_MODE1_DEPTH16;
        nAcl->PixelWidth = 2;
	break;
    case 24:
	if (nPtr->noAccelSet || nPtr->NeoChipset == NM2230
	    || nPtr->NeoChipset == NM2360
	    || nPtr->NeoChipset == NM2380) {
	    nAcl->BltModeFlags = NEO_MODE1_DEPTH24;
            nAcl->PixelWidth = 3;
	} else
	    return FALSE;
	break;
    default:
	return FALSE;
    }
    nAcl->Pitch = pScrn->displayWidth * nAcl->PixelWidth;    

    /* Initialize for widths */
    switch (pScrn->displayWidth) {
    case 320:
	nAcl->BltModeFlags |= NEO_MODE1_X_320;
	break;
    case 640:
	nAcl->BltModeFlags |= NEO_MODE1_X_640;
	break;
    case 800:
	nAcl->BltModeFlags |= NEO_MODE1_X_800;
	break;
    case 1024:
	nAcl->BltModeFlags |= NEO_MODE1_X_1024;
	break;
    case 1152:
	nAcl->BltModeFlags |= NEO_MODE1_X_1152;
	break;
    case 1280:
	nAcl->BltModeFlags |= NEO_MODE1_X_1280;
	break;
    case 1600:
	nAcl->BltModeFlags |= NEO_MODE1_X_1600;
	break;
    default:
	return FALSE;
    }

    return (xaaSetupWrapper(pScreen, infoPtr, pScrn->depth, &nPtr->accelSync));
}

static void
Neo2200Sync(ScrnInfoPtr pScrn)
{
    NEOPtr nPtr = NEOPTR(pScrn);

    WAIT_ENGINE_IDLE();
}

static void
Neo2200SetupForScreenToScreenCopy(ScrnInfoPtr pScrn, int xdir, int ydir,
				  int rop,
				  unsigned int planemask,
				  int trans_color)
{
    NEOPtr nPtr = NEOPTR(pScrn);
    NEOACLPtr nAcl = NEOACLPTR(pScrn);

    nAcl->tmpBltCntlFlags = (NEO_BC3_SKIP_MAPPING | neo2200Rop[rop]);
    /* set blt control */
    WAIT_ENGINE_IDLE();
    /*OUTREG16(NEOREG_BLTMODE, nAcl->BltModeFlags);*/
    OUTREG(NEOREG_BLTSTAT, nAcl->BltModeFlags << 16);
    OUTREG(NEOREG_BLTCNTL, nAcl->tmpBltCntlFlags);
    OUTREG(NEOREG_PITCH, (nAcl->Pitch<<16) 
	   | (nAcl->Pitch & 0xffff));
}

#ifdef NOT_BROKEN
static void
Neo2200SubsequentScreenToScreenCopy(ScrnInfoPtr pScrn,
				    int srcX, int srcY,
				    int dstX, int dstY,
				    int w, int h)
{
    NEOPtr nPtr = NEOPTR(pScrn);
    NEOACLPtr nAcl = NEOACLPTR(pScrn);

    if ((dstY < srcY) || ((dstY == srcY) && (dstX < srcX))) {
	/* start with upper left corner */
	WAIT_ENGINE_IDLE();
#if 0
	OUTREG(NEOREG_BLTCNTL, nAcl->tmpBltCntlFlags);
#endif
	OUTREG(NEOREG_SRCSTARTOFF,
            (srcY * nAcl->Pitch) + (srcX * nAcl->PixelWidth));
	OUTREG(NEOREG_DSTSTARTOFF,
            (dstY * nAcl->Pitch) + (dstX * nAcl->PixelWidth));
	OUTREG(NEOREG_XYEXT, (h<<16) | (w & 0xffff));
    }
    else {
	/* start with lower right corner */
	WAIT_ENGINE_IDLE();
#if 0
	OUTREG(NEOREG_BLTCNTL, (nAcl->tmpBltCntlFlags 
				| NEO_BC0_X_DEC
				| NEO_BC0_DST_Y_DEC 
				| NEO_BC0_SRC_Y_DEC));
#endif
	OUTREG(NEOREG_SRCSTARTOFF,
            ((srcY+h-1) * nAcl->Pitch) + ((srcX+w-1) 
						 * nAcl->PixelWidth));
	OUTREG(NEOREG_DSTSTARTOFF,
            ((dstY+h-1) * nAcl->Pitch) + ((dstX+w-1) 
						 * nAcl->PixelWidth));
	OUTREG(NEOREG_XYEXT, (h<<16) | (w & 0xffff));
    }
}

#else /* NOT_BROKEN */

static void
Neo2200SubsequentScreenToScreenCopyBroken(ScrnInfoPtr pScrn,
					  int srcX, int srcY,
					  int dstX, int dstY,
					  int w, int h)
{
    NEOPtr nPtr = NEOPTR(pScrn);
    NEOACLPtr nAcl = NEOACLPTR(pScrn);

    if ((dstY < srcY) || ((dstY == srcY) && (dstX < srcX))) {
	if ((((dstX < 64) && ((srcX + w + 64) >= pScrn->displayWidth)) ||
	    ((dstX == 0) && (w > (pScrn->displayWidth - 64)))) && (w > 64)) {
	    
#define COPY_64 \
	    OUTREG(NEOREG_SRCSTARTOFF,\
		   (srcY * nAcl->Pitch) + (srcX * nAcl->PixelWidth));\
	    OUTREG(NEOREG_DSTSTARTOFF,\
		   (dstY * nAcl->Pitch) + (dstX * nAcl->PixelWidth));\
	    OUTREG(NEOREG_XYEXT, (h<<16) | (64));
#define COPY_W \
	    OUTREG(NEOREG_SRCSTARTOFF,\
		   (srcY * nAcl->Pitch) + (srcX1 * nAcl->PixelWidth));\
	    OUTREG(NEOREG_DSTSTARTOFF,\
		   (dstY * nAcl->Pitch) + (dstX1 * nAcl->PixelWidth));\
	    OUTREG(NEOREG_XYEXT, (h<<16) | (w & 0xffff));

	    int srcX1 = srcX + 64;
	    int dstX1 = dstX + 64;
	    w -= 64;
	    /* start with upper left corner */
	    WAIT_ENGINE_IDLE();
	    OUTREG(NEOREG_BLTCNTL, nAcl->tmpBltCntlFlags);
	    if (srcX < dstX) {
		COPY_W;
	        WAIT_ENGINE_IDLE();
	        COPY_64;
	    } else {
		COPY_64;
	        WAIT_ENGINE_IDLE();
		COPY_W;
	    }
#undef COPY_W
#undef COPY_64
	} else {
	    /* start with upper left corner */
	    WAIT_ENGINE_IDLE();
	    OUTREG(NEOREG_BLTCNTL, nAcl->tmpBltCntlFlags);
	    OUTREG(NEOREG_SRCSTARTOFF,
		   (srcY * nAcl->Pitch) + (srcX * nAcl->PixelWidth));
	    OUTREG(NEOREG_DSTSTARTOFF,
		   (dstY * nAcl->Pitch) + (dstX * nAcl->PixelWidth));
	    OUTREG(NEOREG_XYEXT, (h<<16) | (w & 0xffff));
	}
    } else {
	if (((((dstX + w) > (pScrn->displayWidth - 64)) && (srcX == 0))
	    || (((dstX + w + 64) >= pScrn->displayWidth)
		&& (w > (pScrn->displayWidth - 64)))) && (w > 64)) {
#define COPY_64 \
	    OUTREG(NEOREG_SRCSTARTOFF, \
		   ((srcY+h-1) * nAcl->Pitch) + ((srcX1+64-1)  \
						 * nAcl->PixelWidth)); \
	    OUTREG(NEOREG_DSTSTARTOFF, \
		   ((dstY+h-1) * nAcl->Pitch) + ((dstX1+64-1) \
						 * nAcl->PixelWidth)); \
	    OUTREG(NEOREG_XYEXT, (h<<16) | (64 & 0xffff)); 
#define COPY_W \
	    OUTREG(NEOREG_SRCSTARTOFF, \
		   ((srcY+h-1) * nAcl->Pitch) + ((srcX + w -1)  \
						 * nAcl->PixelWidth)); \
	    OUTREG(NEOREG_DSTSTARTOFF, \
		   ((dstY+h-1) * nAcl->Pitch) + ((dstX + w -1) \
						 * nAcl->PixelWidth)); \
	    OUTREG(NEOREG_XYEXT, (h<<16) | (w & 0xffff)); 

	    int srcX1, dstX1;
	    
	    w -= 64;
	    srcX1 = srcX + w;
	    dstX1 = dstX + w;
	    /* start with lower right corner */
	    WAIT_ENGINE_IDLE();
	    OUTREG(NEOREG_BLTCNTL, (nAcl->tmpBltCntlFlags 
				    | NEO_BC0_X_DEC
				    | NEO_BC0_DST_Y_DEC 
				    | NEO_BC0_SRC_Y_DEC));
	    if (srcX < dstX) {
	      COPY_64;
	      WAIT_ENGINE_IDLE();
	      COPY_W;
	    } else {
	      COPY_W;
	      WAIT_ENGINE_IDLE();
	      COPY_64;
	    }
#undef COPY_W
#undef COPY_64
	} else {
	    /* start with lower right corner */
	    WAIT_ENGINE_IDLE();
	    OUTREG(NEOREG_BLTCNTL, (nAcl->tmpBltCntlFlags 
				    | NEO_BC0_X_DEC
				    | NEO_BC0_DST_Y_DEC 
				    | NEO_BC0_SRC_Y_DEC));
	    OUTREG(NEOREG_SRCSTARTOFF,
		   ((srcY+h-1) * nAcl->Pitch) + ((srcX+w-1) 
						 * nAcl->PixelWidth));
	    OUTREG(NEOREG_DSTSTARTOFF,
		   ((dstY+h-1) * nAcl->Pitch) + ((dstX+w-1) 
						 * nAcl->PixelWidth));
	    OUTREG(NEOREG_XYEXT, (h<<16) | (w & 0xffff));
	}
    }
}

#endif /* NOT_BROKEN */

static void
Neo2200SetupForSolidFillRect(ScrnInfoPtr pScrn, int color, int rop,
			     unsigned int planemask)
{
    NEOPtr nPtr = NEOPTR(pScrn);
    NEOACLPtr nAcl = NEOACLPTR(pScrn);

    WAIT_ENGINE_IDLE();

    /* set blt control */
    /*OUTREG16(NEOREG_BLTMODE, nAcl->BltModeFlags);*/
    OUTREG(NEOREG_BLTSTAT, nAcl->BltModeFlags << 16);
    OUTREG(NEOREG_BLTCNTL, NEO_BC0_SRC_IS_FG    |
                           NEO_BC3_SKIP_MAPPING |
                           NEO_BC3_DST_XY_ADDR  |
                           NEO_BC3_SRC_XY_ADDR  | neo2200Rop[rop]);

    /* set foreground color */
    OUTREG(NEOREG_FGCOLOR, color);
}


static void
Neo2200SubsequentSolidFillRect(ScrnInfoPtr pScrn, int x, int y, int w, int h)
{
    NEOPtr nPtr = NEOPTR(pScrn);

    WAIT_ENGINE_IDLE();
    OUTREG(NEOREG_DSTSTARTOFF, (y <<16) | (x & 0xffff));
    OUTREG(NEOREG_XYEXT, (h<<16) | (w & 0xffff));
}

static void
Neo2200SetupForScanlineCPUToScreenColorExpandFill(ScrnInfoPtr pScrn,
 				      int fg, int bg,
				      int rop,
				      unsigned int planemask)
{
    NEOPtr nPtr = NEOPTR(pScrn);
    NEOACLPtr nAcl = NEOACLPTR(pScrn);

    if (bg == -1) {
	/* transparent setup */
	nAcl->tmpBltCntlFlags = ( NEO_BC0_SYS_TO_VID   |
					 NEO_BC0_SRC_MONO     |
					 NEO_BC0_SRC_TRANS    |
					 NEO_BC3_SKIP_MAPPING |
					 NEO_BC3_DST_XY_ADDR  | 
#ifdef NEO_DO_CLIPPING
				         NEO_BC3_CLIP_ON      |
#endif
				         neo2200Rop[rop]);

	WAIT_ENGINE_IDLE();
	/*OUTREG16(NEOREG_BLTMODE, nAcl->BltModeFlags);*/
	OUTREG(NEOREG_BLTSTAT, nAcl->BltModeFlags << 16);
	OUTREG(NEOREG_BLTCNTL, nAcl->tmpBltCntlFlags);
	OUTREG(NEOREG_FGCOLOR, fg);
    }
    else {
	/* opaque setup */
        nAcl->tmpBltCntlFlags = ( NEO_BC0_SYS_TO_VID   |
					 NEO_BC0_SRC_MONO     |
					 NEO_BC3_SKIP_MAPPING |
					 NEO_BC3_DST_XY_ADDR  | 
#ifdef NEO_DO_CLIPPING
 				         NEO_BC3_CLIP_ON      |
#endif
					 neo2200Rop[rop]);

	WAIT_ENGINE_IDLE();
	/*OUTREG16(NEOREG_BLTMODE, nAcl->BltModeFlags);*/
	OUTREG(NEOREG_BLTSTAT, nAcl->BltModeFlags << 16);
	OUTREG(NEOREG_FGCOLOR, fg);
	OUTREG(NEOREG_BGCOLOR, bg);
    }
}


static void
Neo2200SubsequentScanlineCPUToScreenColorExpandFill(ScrnInfoPtr pScrn,
					int x, int y,
					int w, int h,
					int skipleft)
{
    NEOPtr nPtr = NEOPTR(pScrn);
    NEOACLPtr nAcl = NEOACLPTR(pScrn);

#ifdef NEO_DO_CLIPPING
        w = (w + 31) & ~31;
#else
    nAcl->CPUToScreenColorExpandFill_x = x;
    nAcl->CPUToScreenColorExpandFill_y = y;
    nAcl->CPUToScreenColorExpandFill_w = w;
    nAcl->CPUToScreenColorExpandFill_h = h;
    nAcl->CPUToScreenColorExpandFill_skipleft = skipleft;
#endif
    OUTREG(NEOREG_BLTCNTL, nAcl->tmpBltCntlFlags 
	   | ((skipleft << 2) & 0x1C));
#ifdef NEO_DO_CLIPPING
    OUTREG(NEOREG_CLIPLT, (y << 16) | (x + skipleft));
    OUTREG(NEOREG_CLIPRB, ((y + h) << 16) | (x + w));
#endif
    OUTREG(NEOREG_SRCSTARTOFF, 0);
    OUTREG(NEOREG_DSTSTARTOFF, (y<<16) | (x & 0xffff));
#ifdef NEO_DO_CLIPPING
    OUTREG(NEOREG_XYEXT, (h<<16) | (w & 0xffff));
#else
    OUTREG(NEOREG_XYEXT, (1<<16) | (w & 0xffff));
#endif
}

static void
Neo2200SubsequentColorExpandScanline(ScrnInfoPtr pScrn,	int bufno)
{
    NEOPtr nPtr = NEOPTR(pScrn);
    NEOACLPtr nAcl = NEOACLPTR(pScrn);

#ifdef NEO_DO_CLIPPING
    /* Should I be waiting for fifo slots to prevent retries ?
       How do I do that on this engine ? */
#else
    if (!(--nAcl->CPUToScreenColorExpandFill_h))
	return;

    WAIT_ENGINE_IDLE();
    OUTREG(NEOREG_BLTCNTL, nAcl->tmpBltCntlFlags 
	   | ((nAcl->CPUToScreenColorExpandFill_skipleft << 2) & 0x1C));
    OUTREG(NEOREG_SRCSTARTOFF, 0);
    OUTREG(NEOREG_DSTSTARTOFF, ((++nAcl->CPUToScreenColorExpandFill_y)<<16)
	   | (nAcl->CPUToScreenColorExpandFill_x & 0xffff));
    OUTREG(NEOREG_XYEXT, (1<<16)
	   | (nAcl->CPUToScreenColorExpandFill_w & 0xffff));
#endif
}

#if 0
static void
Neo2200SetupForMono8x8PatternFill(ScrnInfoPtr pScrn,
				     int patternx,
				     int patterny,
				     int fg, int bg, 
				     int rop, unsigned int planemask)
{
    NEOPtr nPtr = NEOPTR(pScrn);
    NEOACLPtr nAcl = NEOACLPTR(pScrn);

    if (bg == -1) {
	/* transparent setup */
	nAcl->tmpBltCntlFlags = ( NEO_BC0_SRC_MONO     |
					 NEO_BC0_FILL_PAT     |
					 NEO_BC0_SRC_TRANS    |
					 NEO_BC3_SKIP_MAPPING |
					 NEO_BC3_DST_XY_ADDR  | 
					 neo2200Rop[rop]);

	WAIT_ENGINE_IDLE();
	/*OUTREG16(NEOREG_BLTMODE, nAcl->BltModeFlags);*/
	OUTREG(NEOREG_BLTSTAT, nAcl->BltModeFlags << 16);
	OUTREG(NEOREG_FGCOLOR, fg);
	OUTREG(NEOREG_SRCSTARTOFF, 
	    (patterny * pScrn->displayWidth * pScrn->bitsPerPixel 
	     + patternx) >> 3);
    }
    else {
	/* opaque setup */
	nAcl->tmpBltCntlFlags = ( NEO_BC0_SRC_MONO     |
					 NEO_BC0_FILL_PAT     |
					 NEO_BC3_SKIP_MAPPING |
					 NEO_BC3_DST_XY_ADDR  | 
					 neo2200Rop[rop]);

	WAIT_ENGINE_IDLE();
	/*OUTREG16(NEOREG_BLTMODE, nAcl->BltModeFlags);*/
	OUTREG(NEOREG_BLTSTAT, nAcl->BltModeFlags << 16);
	OUTREG(NEOREG_FGCOLOR, fg);
	OUTREG(NEOREG_BGCOLOR, bg);
	OUTREG(NEOREG_SRCSTARTOFF, 
	    (patterny * pScrn->displayWidth * pScrn->bitsPerPixel 
	     + patternx) >> 3);
    }
}


static void
Neo2200SubsequentMono8x8PatternFill(ScrnInfoPtr pScrn,
				    int patternx,
				    int patterny, 
				    int x, int y,
				    int w, int h)
{
    NEOPtr nPtr = NEOPTR(pScrn);
    NEOACLPtr nAcl = NEOACLPTR(pScrn);

    patterny &= 0x7;

    WAIT_ENGINE_IDLE();
    OUTREG(NEOREG_BLTCNTL, nAcl->tmpBltCntlFlags | 
	   (patterny << 20)       | 
	   ((patternx << 10) & 0x1C00));
    OUTREG(NEOREG_SRCBITOFF, patternx);
    OUTREG(NEOREG_DSTSTARTOFF, (y<<16) | (x & 0xffff));
    OUTREG(NEOREG_XYEXT, (h<<16) | (w & 0xffff));
}
#endif
