mga driver, brought over by Jon Smirl

1 files changed, 118 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/mga/server/mga_macros.h b/src/mesa/drivers/dri/mga/server/mga_macros.h
new file mode 100644
index 0000000000..d985081ab6
--- /dev/null
+++ b/src/mesa/drivers/dri/mga/server/mga_macros.h
@@ -0,0 +1,118 @@
+/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/mga/mga_macros.h,v 1.22 2002/02/20 17:17:50 dawes Exp $ */
+
+#ifndef _MGA_MACROS_H_
+#define _MGA_MACROS_H_
+
+#ifndef PSZ
+#define PSZ 8
+#endif
+
+#if PSZ == 8
+#define REPLICATE(r) r &= 0xFF; r |= r << 8; r |= r << 16
+#elif PSZ == 16
+#define REPLICATE(r) r &= 0xFFFF; r |= r << 16
+#elif PSZ == 24
+#define REPLICATE(r) r &= 0xFFFFFF; r |= r << 24
+#else
+#define REPLICATE(r) /* */
+#endif
+
+#define RGBEQUAL(c) (!((((c) >> 8) ^ (c)) & 0xffff))
+
+#ifdef XF86DRI
+#define MGA_SYNC_XTAG                 0x275f4200
+
+#define MGABUSYWAIT() do { \
+OUTREG(MGAREG_DWGSYNC, MGA_SYNC_XTAG); \
+while(INREG(MGAREG_DWGSYNC) != MGA_SYNC_XTAG) ; \
+}while(0);
+
+#endif
+
+#define MGAISBUSY() (INREG8(MGAREG_Status + 2) & 0x01)
+
+#define WAITFIFO(cnt) \
+   if(!pMga->UsePCIRetry) {\
+	register int n = cnt; \
+	if(n > pMga->FifoSize) n = pMga->FifoSize; \
+	while(pMga->fifoCount < (n))\
+	    pMga->fifoCount = INREG8(MGAREG_FIFOSTATUS);\
+	pMga->fifoCount -= n;\
+   }
+
+#define XYADDRESS(x,y) \
+    ((y) * pMga->CurrentLayout.displayWidth + (x) + pMga->YDstOrg)
+
+#define MAKEDMAINDEX(index)  ((((index) >> 2) & 0x7f) | (((index) >> 6) & 0x80))
+
+#define DMAINDICES(one,two,three,four)	\
+	( MAKEDMAINDEX(one) | \
+	 (MAKEDMAINDEX(two) << 8) | \
+	 (MAKEDMAINDEX(three) << 16) | \
+ 	 (MAKEDMAINDEX(four) << 24) )
+
+#if PSZ == 24
+#define SET_PLANEMASK(p) /**/
+#else
+#define SET_PLANEMASK(p) \
+	if(!(pMga->AccelFlags & MGA_NO_PLANEMASK) && ((p) != pMga->PlaneMask)) { \
+	   pMga->PlaneMask = (p); \
+	   REPLICATE((p)); \
+	   OUTREG(MGAREG_PLNWT,(p)); \
+	}
+#endif
+
+#define SET_FOREGROUND(c) \
+	if((c) != pMga->FgColor) { \
+	   pMga->FgColor = (c); \
+	   REPLICATE((c)); \
+	   OUTREG(MGAREG_FCOL,(c)); \
+	}
+
+#define SET_BACKGROUND(c) \
+	if((c) != pMga->BgColor) { \
+	   pMga->BgColor = (c); \
+	   REPLICATE((c)); \
+	   OUTREG(MGAREG_BCOL,(c)); \
+	}
+
+#define DISABLE_CLIP() { \
+	pMga->AccelFlags &= ~CLIPPER_ON; \
+	WAITFIFO(1); \
+	OUTREG(MGAREG_CXBNDRY, 0xFFFF0000); }
+
+#ifdef XF86DRI
+#define CHECK_DMA_QUIESCENT(pMGA, pScrn) {	\
+   if (!pMGA->haveQuiescense) {			\
+      pMGA->GetQuiescence( pScrn );		\
+   }						\
+}
+#else
+#define CHECK_DMA_QUIESCENT(pMGA, pScrn)
+#endif
+
+#ifdef USEMGAHAL
+#define HAL_CHIPSETS ((pMga->Chipset == PCI_CHIP_MGAG200_PCI) || \
+		  (pMga->Chipset == PCI_CHIP_MGAG200) || \
+		  (pMga->Chipset == PCI_CHIP_MGAG400) || \
+		  (pMga->Chipset == PCI_CHIP_MGAG550))
+    
+#define MGA_HAL(x) { \
+	MGAPtr pMga = MGAPTR(pScrn); \
+	if (pMga->HALLoaded && HAL_CHIPSETS) { x; } \
+}
+#define MGA_NOT_HAL(x) { \
+	MGAPtr pMga = MGAPTR(pScrn); \
+	if (!pMga->HALLoaded || !HAL_CHIPSETS) { x; } \
+}
+#else
+#define MGA_NOT_HAL(x) { x; }
+#endif
+
+#define MGAISGx50(x) ( (((x)->Chipset == PCI_CHIP_MGAG400) && ((x)->ChipRev >= 0x80)) || \
+		       ((x)->Chipset == PCI_CHIP_MGAG550) )
+
+#define MGA_DH_NEEDS_HAL(x) (((x)->Chipset == PCI_CHIP_MGAG400) && \
+			     ((x)->ChipRev < 0x80))
+
+#endif /* _MGA_MACROS_H_ */