Initial revisionXORG-STABLE

1 files changed, 686 insertions, 0 deletions

diff --git a/src/alp_xaa.c b/src/alp_xaa.c
new file mode 100644
index 0000000..417f816
--- /dev/null
+++ b/src/alp_xaa.c
@@ -0,0 +1,686 @@
+/* (c) Itai Nahshon */
+
+/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/cirrus/alp_xaa.c,v 1.8 2002/01/25 21:56:00 tsi Exp $ */
+
+#include "xf86.h"
+#include "xf86_OSproc.h"
+#include "xf86_ansic.h"
+#include "compiler.h"
+
+#include "xf86Pci.h"
+#include "xf86PciInfo.h"
+
+#include "vgaHW.h"
+
+#include "cir.h"
+#define _ALP_PRIVATE_
+#include "alp.h"
+
+#define WAIT	outb(pCir->PIOReg, 0x31); \
+		while(inb(pCir->PIOReg + 1) & pCir->chip.alp->waitMsk){};
+#define WAIT_1	outb(pCir->PIOReg, 0x31); \
+		while(inb(pCir->PIOReg + 1) & 0x1){};
+
+static const CARD16 translated_rop[] =
+{
+  /* GXclear */        0x0032U,
+  /* GXand   */        0x0532U,
+  /* GXandreverse */   0x0932U,
+  /* GXcopy */         0x0D32U,
+  /* GXandinversted */ 0x5032U,
+  /* GXnoop */         0x0632U,
+  /* GXxor */          0x5932U,
+  /* GXor */           0x6D32U,
+  /* GXnor */          0x9032U,
+  /* GXequiv */        0x9532U,
+  /* GXinvert */       0x0B32U,
+  /* GXorReverse */    0xAD32U,
+  /* GXcopyInverted */ 0xD032U,
+  /* GXorInverted */   0xD632U,
+  /* GXnand */         0xDA32U,
+  /* GXset */          0x0E32U
+};
+
+#if 1
+#define SetupForRop(rop) outw(pCir->PIOReg, translated_rop[rop])
+#else
+#define SetupForRop(rop) outw(pCir->PIOReg, 0x0D32)
+#endif
+
+static void AlpSync(ScrnInfoPtr pScrn)
+{
+	CirPtr pCir = CIRPTR(pScrn);
+
+#ifdef ALP_DEBUG
+	ErrorF("AlpSync\n");
+#endif
+	WAIT_1;
+	return;
+}
+
+static void
+AlpSetupForScreenToScreenCopy(ScrnInfoPtr pScrn, int xdir, int ydir,
+			      int rop, unsigned int planemask,
+			      int trans_color)
+{
+	CirPtr pCir = CIRPTR(pScrn);
+	int pitch = pCir->pitch;
+
+#ifdef ALP_DEBUG
+	ErrorF("AlpSetupForScreenToScreenCopy xdir=%d ydir=%d rop=%x planemask=%x trans_color=%x\n",
+		xdir, ydir, rop, planemask, trans_color);
+#endif
+	WAIT;
+	SetupForRop(rop);
+	/* Set dest pitch */
+	outw(pCir->PIOReg, ((pitch << 8) & 0xff00) | 0x24);
+	outw(pCir->PIOReg, ((pitch) & 0x1f00) | 0x25);
+	/* Set source pitch */
+	outw(pCir->PIOReg, ((pitch << 8) & 0xff00) | 0x26);
+	outw(pCir->PIOReg, ((pitch) & 0x1f00) | 0x27);
+}
+
+static void
+AlpSubsequentScreenToScreenCopy(ScrnInfoPtr pScrn, int x1, int y1, int x2,
+								int y2, int w, int h)
+{
+	CirPtr pCir = CIRPTR(pScrn);
+	int source, dest;
+	int  hh, ww;
+	int decrement = 0;
+	int pitch = pCir->pitch;
+
+	ww = (w * pScrn->bitsPerPixel / 8) - 1;
+	hh = h - 1;
+	dest = y2 * pitch + x2 * pScrn->bitsPerPixel / 8;
+	source = y1 * pitch + x1 * pScrn->bitsPerPixel / 8;
+	if (dest > source) {
+		decrement = 1 << 8;
+		dest += hh * pitch + ww;
+		source += hh * pitch + ww;
+	}
+
+	WAIT;
+
+	outw(pCir->PIOReg, decrement | 0x30);
+
+	/* Width */
+	outw(pCir->PIOReg, ((ww << 8) & 0xff00) | 0x20);
+	outw(pCir->PIOReg, ((ww) & 0x1f00) | 0x21);
+	/* Height */
+	outw(pCir->PIOReg, ((hh << 8) & 0xff00) | 0x22);
+	outw(pCir->PIOReg, ((hh) & 0x0700) | 0x23);
+
+
+	/* source */
+	outw(pCir->PIOReg, ((source << 8) & 0xff00) | 0x2C);
+	outw(pCir->PIOReg, ((source) & 0xff00) | 0x2D);
+	outw(pCir->PIOReg, ((source >> 8) & 0x3f00)| 0x2E);
+
+	/* dest */
+	outw(pCir->PIOReg, ((dest  << 8) & 0xff00) | 0x28);
+	outw(pCir->PIOReg, ((dest) & 0xff00) | 0x29);
+	outw(pCir->PIOReg, ((dest >> 8) & 0x3f00) | 0x2A);
+	if (!pCir->chip.alp->autoStart)
+	  outw(pCir->PIOReg, 0x0231);
+
+#ifdef ALP_DEBUG
+	ErrorF("AlpSubsequentScreenToScreenCopy x1=%d y1=%d x2=%d y2=%d w=%d h=%d\n",
+			x1, y1, x2, y2, w, h);
+	ErrorF("AlpSubsequentScreenToScreenCopy s=%d d=%d ww=%d hh=%d\n",
+			source, dest, ww, hh);
+#endif
+
+}
+
+static void
+AlpSetupForSolidFill(ScrnInfoPtr pScrn, int color, int rop,
+						unsigned int planemask)
+{
+	CirPtr pCir = CIRPTR(pScrn);
+	AlpPtr pAlp = ALPPTR(pCir);
+	int pitch = pCir->pitch;
+
+#ifdef ALP_DEBUG
+	ErrorF("AlpSetupForSolidFill color=%x rop=%x planemask=%x\n",
+			color, rop, planemask);
+#endif
+	WAIT;
+
+	SetupForRop(rop);
+
+	switch (pCir -> Chipset)
+	{
+	case PCI_CHIP_GD7548:
+	  /* The GD7548 does not (apparently) support solid filling
+	     directly, it always need an actual source.
+	     We therefore use it as a pattern fill with a solid
+	     pattern */
+	  {
+	    int source = pAlp->monoPattern8x8;
+	    /* source = 8x8 solid mono pattern */
+	    outw(pCir->PIOReg, ((source << 8) & 0xff00) | 0x2C);
+	    outw(pCir->PIOReg, ((source) & 0xff00) | 0x2D);
+	    outw(pCir->PIOReg, ((source >> 8) & 0x3f00) | 0x2E);
+	    /* memset() may not be the fastest */
+	    memset(pCir->FbBase + pAlp->monoPattern8x8, 0xFF, 8);
+	    write_mem_barrier();
+	    break;
+	  }
+        default:
+          /* GR33 = 0x04 => does not exist on GD7548 */
+	  outw(pCir->PIOReg, 0x0433);
+	}
+
+        /* GR30 = color expansion, pattern copy */
+	/* Choses 8bpp / 16bpp color expansion */
+	outw(pCir->PIOReg, 0xC030 |((pScrn->bitsPerPixel - 8) << 9));
+
+	outw(pCir->PIOReg, ((color << 8) & 0xff00) | 0x01);
+	outw(pCir->PIOReg, ((color) & 0xff00) | 0x11);
+	outw(pCir->PIOReg, ((color >> 8) & 0xff00) | 0x13);
+	outw(pCir->PIOReg, 0x15);
+
+	/* Set dest pitch */
+	outw(pCir->PIOReg, ((pitch << 8) & 0xff00) | 0x24);
+	outw(pCir->PIOReg, ((pitch) & 0x1f00) | 0x25);
+}
+
+static void
+AlpSubsequentSolidFillRect(ScrnInfoPtr pScrn, int x, int y, int w, int h)
+{
+	CirPtr pCir = CIRPTR(pScrn);
+	int dest;
+	int hh, ww;
+	int pitch = pCir->pitch;
+
+	ww = (w * pScrn->bitsPerPixel / 8) - 1;
+	hh = h - 1;
+	dest = y * pitch + x * pScrn->bitsPerPixel / 8;
+
+	WAIT;
+
+	/* Width */
+	outw(pCir->PIOReg, ((ww << 8) & 0xff00) | 0x20);
+	outw(pCir->PIOReg, ((ww) & 0x1f00) | 0x21);
+	/* Height */
+	outw(pCir->PIOReg, ((hh << 8) & 0xff00) | 0x22);
+	outw(pCir->PIOReg, ((hh) & 0x0700) | 0x23);
+
+	/* dest */
+	outw(pCir->PIOReg, ((dest << 8) & 0xff00) | 0x28);
+	outw(pCir->PIOReg, ((dest) & 0xff00) | 0x29);
+	outw(pCir->PIOReg, ((dest >> 8) & 0x3f00) | 0x2A);
+	if (!pCir->chip.alp->autoStart)
+	  outw(pCir->PIOReg, 0x0231);
+
+#ifdef ALP_DEBUG
+	ErrorF("AlpSubsequentSolidFillRect x=%d y=%d w=%d h=%d\n",
+			x, y, w, h);
+#endif
+
+}
+
+static void
+AlpSetupForMono8x8PatternFill(ScrnInfoPtr pScrn,
+			      int patx, int paty,
+			      int fg, int bg,
+			      int rop, unsigned int planemask)
+{
+	CirPtr pCir = CIRPTR(pScrn);
+	AlpPtr pAlp = ALPPTR(pCir);
+	int pitch = pCir->pitch;
+
+#ifdef ALP_DEBUG
+	ErrorF("AlpSetupFor8x8PatternFill pattern=%8x%8x"
+	       "fg=%x bg=%x rop=%x planemask=%x\n",
+			patx, paty, fg, bg, rop, planemask);
+#endif
+	WAIT;
+
+	SetupForRop(rop);
+
+	{
+	  int source = pAlp->monoPattern8x8;
+	  /* source = 8x8 solid mono pattern */
+	  outw(pCir->PIOReg, ((source << 8) & 0xff00) | 0x2C);
+	  outw(pCir->PIOReg, ((source) & 0xff00) | 0x2D);
+	  outw(pCir->PIOReg, ((source >> 8) & 0x3f00) | 0x2E);
+	}
+
+        /* GR30 = color expansion, pattern copy */
+	/* Choses 8bpp / 16bpp color expansion */
+	if (bg == -1)
+	{ /* transparency requested */
+	  outw(pCir->PIOReg, 0xC830 |((pScrn->bitsPerPixel - 8) << 9));
+
+	  bg = ~fg;
+	  /* transparent color compare */
+	  outw(pCir->PIOReg, ((bg << 8) & 0xff00) | 0x34);
+	  outw(pCir->PIOReg, ((bg) & 0xff00) | 0x35);
+
+	  /* transparent color mask = 0 (all bits matters) */
+	  outw(pCir->PIOReg, 0x38);
+	  outw(pCir->PIOReg, 0x39);
+	}
+	else
+	{
+	  outw(pCir->PIOReg, 0xC030 |((pScrn->bitsPerPixel - 8) << 9));
+	}
+
+	outw(pCir->PIOReg, ((fg << 8) & 0xff00) | 0x01);
+	outw(pCir->PIOReg, ((fg) & 0xff00) | 0x11);
+
+	outw(pCir->PIOReg, ((bg << 8) & 0xff00) | 0x00);
+	outw(pCir->PIOReg, ((bg) & 0xff00) | 0x10);
+
+	/* Set dest pitch */
+	outw(pCir->PIOReg, ((pitch << 8) & 0xff00) | 0x24);
+	outw(pCir->PIOReg, ((pitch) & 0x1f00) | 0x25);
+}
+
+static void
+AlpSubsequentMono8x8PatternFillRect(ScrnInfoPtr pScrn, int patx, int paty,
+			   int x, int y, int w, int h)
+{
+	CirPtr pCir = CIRPTR(pScrn);
+	AlpPtr pAlp = ALPPTR(pCir);
+	int dest;
+	int hh, ww;
+	int pitch = pCir->pitch;
+
+	ww = (w * pScrn->bitsPerPixel / 8) - 1;
+	hh = h - 1;
+	dest = y * pitch + x * pScrn->bitsPerPixel / 8;
+
+	WAIT;
+	/* memcpy() may not be the fastest */
+	memcpy(pCir->FbBase + pAlp->monoPattern8x8, &patx, 4);
+	memcpy(pCir->FbBase + pAlp->monoPattern8x8 + 4, &paty, 4);
+	write_mem_barrier();
+
+	/* Width */
+	outw(pCir->PIOReg, ((ww << 8) & 0xff00) | 0x20);
+	outw(pCir->PIOReg, ((ww) & 0x1f00) | 0x21);
+	/* Height */
+	outw(pCir->PIOReg, ((hh << 8) & 0xff00) | 0x22);
+	outw(pCir->PIOReg, ((hh) & 0x0700) | 0x23);
+
+	/* dest */
+	outw(pCir->PIOReg, ((dest << 8) & 0xff00) | 0x28);
+	outw(pCir->PIOReg, ((dest) & 0xff00) | 0x29);
+	outw(pCir->PIOReg, ((dest >> 8) & 0x3f00) | 0x2A);
+	if (!pCir->chip.alp->autoStart)
+	  outw(pCir->PIOReg, 0x0231);
+
+#ifdef ALP_DEBUG
+	ErrorF("AlpSubsequent8x8PatternFill x=%d y=%d w=%d h=%d\n",
+			x, y, w, h);
+#endif
+
+}
+
+#if 0
+/* XF86 does not support byte-padded scanlines */
+
+static void
+AlpSetupForCPUToScreenColorExpandFill(ScrnInfoPtr pScrn,
+                        int fg, int bg,
+                        int rop,
+                        unsigned int planemask)
+{
+	CirPtr pCir = CIRPTR(pScrn);
+	AlpPtr pAlp = ALPPTR(pCir);
+	int pitch = pCir->pitch;
+
+#ifdef ALP_DEBUG
+	ErrorF("AlpSetupForCPUToScreenColorExpandFill "
+	       "fg=%x bg=%x rop=%x planemask=%x\n",
+			fg, bg, rop, planemask);
+#endif
+	WAIT;
+
+	SetupForRop(rop);
+
+        /* GR30 = color expansion, CPU->display copy */
+	/* Choses 8bpp / 16bpp color expansion */
+	if (bg == -1)
+	{ /* transparency requested */
+	  outw(pCir->PIOReg, 0x8C30 |((pScrn->bitsPerPixel - 8) << 9));
+
+	  bg = ~fg;
+	  /* transparent color compare */
+	  outw(pCir->PIOReg, ((bg << 8) & 0xff00) | 0x34);
+	  outw(pCir->PIOReg, ((bg) & 0xff00) | 0x35);
+
+	  /* transparent color mask = 0 (all bits matters) */
+	  outw(pCir->PIOReg, 0x38);
+	  outw(pCir->PIOReg, 0x39);
+	}
+	else
+	{
+	  outw(pCir->PIOReg, 0x8430 |((pScrn->bitsPerPixel - 8) << 9));
+	}
+
+	outw(pCir->PIOReg, ((bg << 8) & 0xff00) | 0x00);
+	outw(pCir->PIOReg, ((bg) & 0xff00) | 0x10);
+
+	outw(pCir->PIOReg, ((fg << 8) & 0xff00) | 0x01);
+	outw(pCir->PIOReg, ((fg) & 0xff00) | 0x11);
+
+	/* Set dest pitch */
+	outw(pCir->PIOReg, ((pitch << 8) & 0xff00) | 0x24);
+	outw(pCir->PIOReg, ((pitch) & 0x1f00) | 0x25);  
+}
+
+static void
+AlpSubsequentCPUToScreenColorExpandFill(
+	ScrnInfoPtr pScrn,
+	int x, int y, int w, int h,
+	int skipleft)
+{
+	CirPtr pCir = CIRPTR(pScrn);
+	int dest;
+	int hh, ww;
+	int pitch = pCir->pitch;
+
+	ww = (((w+7) & ~7) * pScrn->bitsPerPixel / 8) - 1;
+	hh = h - 1;
+	dest = y * pitch + x * pScrn->bitsPerPixel / 8;
+
+	WAIT;
+
+	/* Width */
+	outw(pCir->PIOReg, ((ww << 8) & 0xff00) | 0x20);
+	outw(pCir->PIOReg, ((ww) & 0x1f00) | 0x21);
+	/* Height */
+	outw(pCir->PIOReg, ((hh << 8) & 0xff00) | 0x22);
+	outw(pCir->PIOReg, ((hh) & 0x0700) | 0x23);
+
+	/* source = CPU ; description of bit 2 of GR30 in the 7548 manual
+	   says that if we do color expansion we must zero the source
+	   adress registers (GR2C, GR2D, GR2E) */
+	outw(pCir->PIOReg, 0x2C);
+	outw(pCir->PIOReg, 0x2D);
+	outw(pCir->PIOReg, 0x2E);
+
+	/* dest */
+	outw(pCir->PIOReg, ((dest << 8) & 0xff00) | 0x28);
+	outw(pCir->PIOReg, ((dest) & 0xff00) | 0x29);
+	outw(pCir->PIOReg, ((dest >> 8) & 0x3f00) | 0x2A);
+	if (!pCir->chip.alp->autoStart)
+	  outw(pCir->PIOReg, 0x0231);
+
+#ifdef ALP_DEBUG
+	ErrorF("AlpSubsequentCPUToScreenColorExpandFill x=%d y=%d w=%d h=%d\n",
+			x, y, w, h);
+#endif
+}
+#endif
+
+#if 1
+static void
+AlpSetupForScanlineCPUToScreenColorExpandFill(ScrnInfoPtr pScrn,
+                        int fg, int bg,
+                        int rop,
+                        unsigned int planemask)
+{
+	CirPtr pCir = CIRPTR(pScrn);
+	int pitch = pCir->pitch;
+
+#ifdef ALP_DEBUG
+	ErrorF("AlpSetupForCPUToScreenColorExpandFill "
+	       "fg=%x bg=%x rop=%x planemask=%x, bpp=%d\n",
+			fg, bg, rop, planemask, pScrn->bitsPerPixel);
+#endif
+	WAIT;
+
+	SetupForRop(rop);
+
+        /* GR30 = color expansion, CPU->display copy */
+	/* Choses 8bpp / 16bpp color expansion */
+	if (bg == -1)
+	{ /* transparency requested */
+	  if (pScrn->bitsPerPixel > 8) /* 16 bpp */
+	  {
+	    outw(pCir->PIOReg, 0x9C30);
+
+	    bg = ~fg;
+	    /* transparent color compare */
+	    outw(pCir->PIOReg, ((bg << 8) & 0xff00) | 0x34);
+	    outw(pCir->PIOReg, ((bg) & 0xff00) | 0x35);
+	  } else /* 8 bpp */
+	  {
+	    outw(pCir->PIOReg, 0x8C30);
+
+	    bg = ~fg;
+	    /* transparent color compare */
+	    outw(pCir->PIOReg, ((bg << 8) & 0xff00) | 0x34);
+	    outw(pCir->PIOReg, ((bg << 8) & 0xff00) | 0x35);
+	  }
+
+	  /* transparent color mask = 0 (all bits matters) */
+	  outw(pCir->PIOReg, 0x38);
+	  outw(pCir->PIOReg, 0x39);
+	}
+	else
+	{
+	  outw(pCir->PIOReg, 0x8430 |((pScrn->bitsPerPixel - 8) << 9));
+	}
+
+	outw(pCir->PIOReg, ((bg << 8) & 0xff00) | 0x00);
+	outw(pCir->PIOReg, ((bg) & 0xff00) | 0x10);
+
+	outw(pCir->PIOReg, ((fg << 8) & 0xff00) | 0x01);
+	outw(pCir->PIOReg, ((fg) & 0xff00) | 0x11);
+
+	/* Set dest pitch */
+	outw(pCir->PIOReg, ((pitch << 8) & 0xff00) | 0x24);
+	outw(pCir->PIOReg, ((pitch) & 0x1f00) | 0x25);  
+}
+
+static void
+AlpSubsequentScanlineCPUToScreenColorExpandFill(
+	ScrnInfoPtr pScrn,
+	int x, int y, int w, int h,
+	int skipleft)
+{
+	CirPtr pCir = CIRPTR(pScrn);
+	AlpPtr pAlp = ALPPTR(pCir);
+
+	int pitch = pCir->pitch;
+
+	pAlp->SubsequentColorExpandScanlineByteWidth =
+	  (w * pScrn->bitsPerPixel / 8) - 1;
+	pAlp->SubsequentColorExpandScanlineDWordWidth =
+	  (w + 31) >> 5;
+	pAlp->SubsequentColorExpandScanlineDest =
+	  y * pitch + x * pScrn->bitsPerPixel / 8;
+
+#ifdef ALP_DEBUG
+	ErrorF("AlpSubsequentScanlineCPUToScreenColorExpandFill x=%d y=%d w=%d h=%d skipleft=%d\n",
+			x, y, w, h, skipleft);
+#endif
+}
+
+static void 
+AlpSubsequentColorExpandScanline(
+	ScrnInfoPtr pScrn,
+	int bufno)
+{
+        CirPtr pCir = CIRPTR(pScrn);
+	AlpPtr pAlp = ALPPTR(pCir);
+	int dest=pAlp->SubsequentColorExpandScanlineDest;
+	int ww=pAlp->SubsequentColorExpandScanlineByteWidth;
+	int width=pAlp->SubsequentColorExpandScanlineDWordWidth;
+	CARD32* from;
+	volatile CARD32 *to;
+
+#ifdef ALP_DEBUG
+	ErrorF("AlpSubsequentColorExpandScanline\n");
+#endif
+
+	pAlp->SubsequentColorExpandScanlineDest += pCir->pitch;
+
+	to   = (CARD32*) pCir->FbBase;
+	from = (CARD32*) (pCir->ScanlineColorExpandBuffers[bufno]);
+	WAIT_1;
+
+	/* Width */
+	outw(pCir->PIOReg, ((ww << 8) & 0xff00) | 0x20);
+	outw(pCir->PIOReg, ((ww) & 0x1f00) | 0x21);
+
+	/* Height = 1 */
+	outw(pCir->PIOReg, 0x22);
+	outw(pCir->PIOReg, 0x23);
+
+	/* source = CPU ; description of bit 2 of GR30 in the 7548 manual
+	   says that if we do color expansion we must zero the source
+	   adress registers (GR2C, GR2D, GR2E) */
+	outw(pCir->PIOReg, 0x2C);
+	outw(pCir->PIOReg, 0x2D);
+	outw(pCir->PIOReg, 0x2E);
+
+	/* dest */
+	outw(pCir->PIOReg, ((dest << 8) & 0xff00) | 0x28);
+	outw(pCir->PIOReg, ((dest) & 0xff00) | 0x29);
+	write_mem_barrier();
+
+#ifdef ALP_DEBUG
+	ErrorF("AlpSubsequentColorExpandScanline (2)\n");
+#endif
+
+	outw(pCir->PIOReg, ((dest >> 8) & 0x3f00) | 0x2A);
+	if (!pCir->chip.alp->autoStart)
+	  outw(pCir->PIOReg, 0x0231);
+
+	{
+	  int i;
+	  for (i=0; i<width; i++)
+	    *to=*(from++);
+	  write_mem_barrier();
+	}
+
+#ifdef ALP_DEBUG
+	ErrorF("AlpSubsequentColorExpandScanline (3)\n");
+#endif
+}
+#endif
+
+static void
+AlpAccelEngineInit(ScrnInfoPtr pScrn)
+{
+    CirPtr pCir = CIRPTR(pScrn);
+
+    outw(pCir->PIOReg, 0x200E); /* enable writes to gr33 */
+    /* Setup things for autostart */
+    if (pCir->properties & ACCEL_AUTOSTART) {
+        outw(pCir->PIOReg, 0x8031); /* enable autostart */
+	pCir->chip.alp->waitMsk = 0x10;
+	pCir->chip.alp->autoStart = TRUE;
+    } else {
+        pCir->chip.alp->waitMsk = 0x1;
+	pCir->chip.alp->autoStart = FALSE;
+    }
+}
+
+Bool
+AlpXAAInit(ScreenPtr pScreen)
+{
+    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
+    CirPtr pCir = CIRPTR(pScrn);
+    AlpPtr pAlp = ALPPTR(pCir);
+    XAAInfoRecPtr XAAPtr;
+
+    pCir->InitAccel =  AlpAccelEngineInit;
+#ifdef ALP_DEBUG
+    ErrorF("AlpXAAInit\n");
+#endif
+
+    XAAPtr = XAACreateInfoRec();
+    if (!XAAPtr) return FALSE;
+
+    /* Pixmap cache */
+    XAAPtr->Flags |= LINEAR_FRAMEBUFFER;
+    XAAPtr->Sync = AlpSync;
+    
+    XAAPtr->SetupForScreenToScreenCopy = AlpSetupForScreenToScreenCopy;
+    XAAPtr->SubsequentScreenToScreenCopy = AlpSubsequentScreenToScreenCopy;
+    XAAPtr->ScreenToScreenCopyFlags =
+        NO_TRANSPARENCY | NO_PLANEMASK;
+
+    XAAPtr->SetupForSolidFill = AlpSetupForSolidFill;
+    XAAPtr->SubsequentSolidFillRect = AlpSubsequentSolidFillRect;
+    XAAPtr->SubsequentSolidFillTrap = NULL;
+    XAAPtr->SolidFillFlags = NO_PLANEMASK;
+
+    if (pCir->Chipset == PCI_CHIP_GD7548) {
+        if (pAlp->monoPattern8x8) {
+	    XAAPtr->SetupForMono8x8PatternFill 
+	        = AlpSetupForMono8x8PatternFill;
+	    XAAPtr->SubsequentMono8x8PatternFillRect 
+	        = AlpSubsequentMono8x8PatternFillRect;
+	    XAAPtr->SubsequentMono8x8PatternFillTrap = NULL;
+	    XAAPtr->Mono8x8PatternFillFlags =
+	        NO_PLANEMASK |
+		HARDWARE_PATTERN_PROGRAMMED_BITS | BIT_ORDER_IN_BYTE_MSBFIRST;
+	}
+#if 1
+	/* kludge: since XF86 does not support byte-padded
+	   mono bitmaps (only dword-padded), use the
+	   scanline version */
+	XAAPtr->SetupForScanlineCPUToScreenColorExpandFill =
+	    AlpSetupForScanlineCPUToScreenColorExpandFill;
+	XAAPtr->SubsequentScanlineCPUToScreenColorExpandFill =
+	    AlpSubsequentScanlineCPUToScreenColorExpandFill;
+	XAAPtr->SubsequentColorExpandScanline =
+	    AlpSubsequentColorExpandScanline;
+	{
+	  const int NumScanlineColorExpandBuffers = 2;
+	  int i;
+	  int buffer_size = (pCir->pScrn->virtualX + 31) & ~31;
+#ifdef ALP_DEBUG
+	  ErrorF("Computing buffers for %d pixel lines\n",
+		 pCir->pScrn->virtualX);
+#endif
+	  XAAPtr->NumScanlineColorExpandBuffers =
+	      NumScanlineColorExpandBuffers;
+	  XAAPtr->ScanlineColorExpandBuffers =
+	      pCir->ScanlineColorExpandBuffers = (unsigned char **)
+	      (malloc(sizeof(unsigned char *) *
+		      NumScanlineColorExpandBuffers));
+	    /* TODO: are those mallocs to be freed ? */
+
+	  for(i=0; i<NumScanlineColorExpandBuffers; i++)
+	      pCir->ScanlineColorExpandBuffers[i] = (unsigned char *)
+		malloc(buffer_size);
+	}
+	XAAPtr->ScanlineCPUToScreenColorExpandFillFlags =
+	    NO_PLANEMASK | BIT_ORDER_IN_BYTE_MSBFIRST |
+	    SCANLINE_PAD_DWORD | ROP_NEEDS_SOURCE;
+#endif
+#if 0
+	/* Currently disabled: XF86 sends DWORD-padded data,
+	   not byte-padded */
+	XAAPtr->SetupForCPUToScreenColorExpandFill =
+	  AlpSetupForCPUToScreenColorExpandFill;
+	XAAPtr->SubsequentCPUToScreenColorExpandFill =
+	  AlpSubsequentCPUToScreenColorExpandFill;
+	XAAPtr->ColorExpandBase = pCir->FbBase + 4;
+	XAAPtr->CPUToScreenColorExpandFillFlags =
+	  NO_PLANEMASK | BIT_ORDER_IN_BYTE_MSBFIRST |
+	  SCANLINE_PAD_DWORD | ROP_NEEDS_SOURCE |
+	  CPU_TRANSFER_PAD_DWORD | CPU_TRANSFER_BASE_FIXED;
+#endif
+    }
+
+    AlpAccelEngineInit(pScrn);
+
+    pCir->AccelInfoRec = XAAPtr;
+
+    if (!XAAInit(pScreen, XAAPtr))
+        return FALSE;
+
+    return TRUE;
+}
+