patch-2.4.20 linux-2.4.20/drivers/video/sis/sis_accel.c

• Lines: 509
• Date: Thu Nov 28 15:53:15 2002
• Orig file: linux-2.4.19/drivers/video/sis/sis_accel.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -urN linux-2.4.19/drivers/video/sis/sis_accel.c linux-2.4.20/drivers/video/sis/sis_accel.c
@@ -0,0 +1,508 @@
+/*
+ * SiS 300/630/730/540/315/550/650/740 frame buffer driver
+ * for Linux kernels 2.4.x and 2.5.x
+ *
+ * 2D acceleration part
+ *
+ * Based on the X driver's sis300_accel.c which is
+ *     Copyright Xavier Ducoin <x.ducoin@lectra.com>
+ *     Copyright 2002 by Thomas Winischhofer, Vienna, Austria
+ * and sis310_accel.c which is
+ *     Copyright 2002 by Thomas Winischhofer, Vienna, Austria
+ *
+ * Author: Thomas Winischhofer <thomas@winischhofer.net>
+ *			(see http://www.winischhofer.net/
+ *			for more information and updates)
+ */
+
+#include <linux/config.h>
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/tty.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/console.h>
+#include <linux/selection.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/vt_kern.h>
+#include <linux/capability.h>
+#include <linux/fs.h>
+#include <linux/agp_backend.h>
+
+#include <linux/types.h>
+#include <linux/sisfb.h>
+
+#include <asm/io.h>
+#include <asm/mtrr.h>
+
+#include <video/fbcon.h>
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,33)
+#include <video/fbcon-cfb8.h>
+#include <video/fbcon-cfb16.h>
+#include <video/fbcon-cfb24.h>
+#include <video/fbcon-cfb32.h>
+#endif
+
+#include "osdef.h"
+#include "vgatypes.h"
+#include "vstruct.h"
+#include "sis_accel.h"
+#include "sis.h"
+
+extern struct     video_info ivideo;
+extern VGA_ENGINE sisvga_engine;
+
+static const int sisALUConv[] =
+{
+    0x00,       /* dest = 0;            0,      GXclear,        0 */
+    0x88,       /* dest &= src;         DSa,    GXand,          0x1 */
+    0x44,       /* dest = src & ~dest;  SDna,   GXandReverse,   0x2 */
+    0xCC,       /* dest = src;          S,      GXcopy,         0x3 */
+    0x22,       /* dest &= ~src;        DSna,   GXandInverted,  0x4 */
+    0xAA,       /* dest = dest;         D,      GXnoop,         0x5 */
+    0x66,       /* dest = ^src;         DSx,    GXxor,          0x6 */
+    0xEE,       /* dest |= src;         DSo,    GXor,           0x7 */
+    0x11,       /* dest = ~src & ~dest; DSon,   GXnor,          0x8 */
+    0x99,       /* dest ^= ~src ;       DSxn,   GXequiv,        0x9 */
+    0x55,       /* dest = ~dest;        Dn,     GXInvert,       0xA */
+    0xDD,       /* dest = src|~dest ;   SDno,   GXorReverse,    0xB */
+    0x33,       /* dest = ~src;         Sn,     GXcopyInverted, 0xC */
+    0xBB,       /* dest |= ~src;        DSno,   GXorInverted,   0xD */
+    0x77,       /* dest = ~src|~dest;   DSan,   GXnand,         0xE */
+    0xFF,       /* dest = 0xFF;         1,      GXset,          0xF */
+};
+/* same ROP but with Pattern as Source */
+static const int sisPatALUConv[] =
+{
+    0x00,       /* dest = 0;            0,      GXclear,        0 */
+    0xA0,       /* dest &= src;         DPa,    GXand,          0x1 */
+    0x50,       /* dest = src & ~dest;  PDna,   GXandReverse,   0x2 */
+    0xF0,       /* dest = src;          P,      GXcopy,         0x3 */
+    0x0A,       /* dest &= ~src;        DPna,   GXandInverted,  0x4 */
+    0xAA,       /* dest = dest;         D,      GXnoop,         0x5 */
+    0x5A,       /* dest = ^src;         DPx,    GXxor,          0x6 */
+    0xFA,       /* dest |= src;         DPo,    GXor,           0x7 */
+    0x05,       /* dest = ~src & ~dest; DPon,   GXnor,          0x8 */
+    0xA5,       /* dest ^= ~src ;       DPxn,   GXequiv,        0x9 */
+    0x55,       /* dest = ~dest;        Dn,     GXInvert,       0xA */
+    0xF5,       /* dest = src|~dest ;   PDno,   GXorReverse,    0xB */
+    0x0F,       /* dest = ~src;         Pn,     GXcopyInverted, 0xC */
+    0xAF,       /* dest |= ~src;        DPno,   GXorInverted,   0xD */
+    0x5F,       /* dest = ~src|~dest;   DPan,   GXnand,         0xE */
+    0xFF,       /* dest = 0xFF;         1,      GXset,          0xF */
+};
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,34)
+static const unsigned char myrops[] = {
+   	3, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3
+   };
+#endif
+
+/* 300 series */
+
+static void
+SiS300Sync(void)
+{
+	SiS300Idle
+}
+
+static void
+SiS310Sync(void)
+{
+	SiS310Idle
+}
+
+static void
+SiS300SetupForScreenToScreenCopy(int xdir, int ydir, int rop,
+                                unsigned int planemask, int trans_color)
+{
+	SiS300SetupDSTColorDepth(ivideo.DstColor);
+	SiS300SetupSRCPitch(ivideo.video_linelength)
+	SiS300SetupDSTRect(ivideo.video_linelength, -1)
+
+	if(trans_color != -1) {
+		SiS300SetupROP(0x0A)
+		SiS300SetupSRCTrans(trans_color)
+		SiS300SetupCMDFlag(TRANSPARENT_BITBLT)
+	} else {
+	        SiS300SetupROP(sisALUConv[rop])
+	}
+	if(xdir > 0) {
+		SiS300SetupCMDFlag(X_INC)
+	}
+	if(ydir > 0) {
+		SiS300SetupCMDFlag(Y_INC)
+	}
+}
+
+static void
+SiS300SubsequentScreenToScreenCopy(int src_x, int src_y, int dst_x, int dst_y,
+                                int width, int height)
+{
+	long srcbase, dstbase;
+
+	srcbase = dstbase = 0;
+	if (src_y >= 2048) {
+		srcbase = ivideo.video_linelength * src_y;
+		src_y = 0;
+	}
+	if (dst_y >= 2048) {
+		dstbase = ivideo.video_linelength * dst_y;
+		dst_y = 0;
+	}
+
+	SiS300SetupSRCBase(srcbase);
+	SiS300SetupDSTBase(dstbase);
+
+	if(!(ivideo.CommandReg & X_INC))  {
+		src_x += width-1;
+		dst_x += width-1;
+	}
+	if(!(ivideo.CommandReg & Y_INC))  {
+		src_y += height-1;
+		dst_y += height-1;
+	}
+	SiS300SetupRect(width, height)
+	SiS300SetupSRCXY(src_x, src_y)
+	SiS300SetupDSTXY(dst_x, dst_y)
+	SiS300DoCMD
+}
+
+static void
+SiS300SetupForSolidFill(int color, int rop, unsigned int planemask)
+{
+	SiS300SetupPATFG(color)
+	SiS300SetupDSTRect(ivideo.video_linelength, -1)
+	SiS300SetupDSTColorDepth(ivideo.DstColor);
+	SiS300SetupROP(sisPatALUConv[rop])
+	SiS300SetupCMDFlag(PATFG)
+}
+
+static void
+SiS300SubsequentSolidFillRect(int x, int y, int w, int h)
+{
+	long dstbase;
+
+	dstbase = 0;
+	if(y >= 2048) {
+		dstbase = ivideo.video_linelength * y;
+		y = 0;
+	}
+	SiS300SetupDSTBase(dstbase)
+	SiS300SetupDSTXY(x,y)
+	SiS300SetupRect(w,h)
+	SiS300SetupCMDFlag(X_INC | Y_INC | BITBLT)
+	SiS300DoCMD
+}
+
+/* 310/325 series ------------------------------------------------ */
+
+static void
+SiS310SetupForScreenToScreenCopy(int xdir, int ydir, int rop,
+                                unsigned int planemask, int trans_color)
+{
+	SiS310SetupDSTColorDepth(ivideo.DstColor);
+	SiS310SetupSRCPitch(ivideo.video_linelength)
+	SiS310SetupDSTRect(ivideo.video_linelength, -1)
+	if (trans_color != -1) {
+		SiS310SetupROP(0x0A)
+		SiS310SetupSRCTrans(trans_color)
+		SiS310SetupCMDFlag(TRANSPARENT_BITBLT)
+	} else {
+	        SiS310SetupROP(sisALUConv[rop])
+		/* Set command - not needed, both 0 */
+		/* SiSSetupCMDFlag(BITBLT | SRCVIDEO) */
+	}
+	SiS310SetupCMDFlag(ivideo.SiS310_AccelDepth)
+	/* TW: The 310/325 series is smart enough to know the direction */
+}
+
+static void
+SiS310SubsequentScreenToScreenCopy(int src_x, int src_y, int dst_x, int dst_y,
+                                int width, int height)
+{
+	long srcbase, dstbase;
+
+	srcbase = dstbase = 0;
+	if (src_y >= 2048) {
+		srcbase = ivideo.video_linelength * src_y;
+		src_y = 0;
+	}
+	if (dst_y >= 2048) {
+		dstbase = ivideo.video_linelength * dst_y;
+		dst_y = 0;
+	}
+
+	SiS310SetupSRCBase(srcbase);
+	SiS310SetupDSTBase(dstbase);
+	SiS310SetupRect(width, height)
+	SiS310SetupSRCXY(src_x, src_y)
+	SiS310SetupDSTXY(dst_x, dst_y)
+	SiS310DoCMD
+}
+
+static void
+SiS310SetupForSolidFill(int color, int rop, unsigned int planemask)
+{
+	SiS310SetupPATFG(color)
+	SiS310SetupDSTRect(ivideo.video_linelength, -1)
+	SiS310SetupDSTColorDepth(ivideo.DstColor);
+	SiS310SetupROP(sisPatALUConv[rop])
+	SiS310SetupCMDFlag(PATFG | ivideo.SiS310_AccelDepth)
+}
+
+static void
+SiS310SubsequentSolidFillRect(int x, int y, int w, int h)
+{
+	long dstbase;
+
+	dstbase = 0;
+	if(y >= 2048) {
+		dstbase = ivideo.video_linelength * y;
+		y = 0;
+	}
+	SiS310SetupDSTBase(dstbase)
+	SiS310SetupDSTXY(x,y)
+	SiS310SetupRect(w,h)
+	SiS310SetupCMDFlag(BITBLT)
+	SiS310DoCMD
+}
+
+/* --------------------------------------------------------------------- */
+
+/* The exported routines */
+
+int sisfb_initaccel(void)
+{
+#ifdef SISFB_USE_SPINLOCKS
+    spin_lock_init(&ivideo.lockaccel);
+#endif
+    return(0);
+}
+
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,34)  /* --- KERNEL 2.5.34 and later --- */
+
+void fbcon_sis_fillrect(struct fb_info *info, struct fb_fillrect *rect)
+{
+   CRITFLAGS
+
+   TWDEBUG("Inside sis_fillrect");
+   if(!rect->width || !rect->height)
+   	return;
+
+   if(!sisfb_accel) {
+        cfb_fillrect(info, rect);
+	return;
+   }
+
+   if(sisvga_engine == SIS_300_VGA) {
+	   CRITBEGIN
+	   SiS300SetupForSolidFill(rect->color, myrops[rect->rop], 0);
+	   SiS300SubsequentSolidFillRect(rect->dx, rect->dy, rect->width, rect->height);
+	   CRITEND
+	   SiS300Sync();
+   } else {
+	   CRITBEGIN
+	   SiS310SetupForSolidFill(rect->color, myrops[rect->rop], 0);
+	   SiS310SubsequentSolidFillRect(rect->dx, rect->dy, rect->width, rect->height);
+	   CRITEND
+	   SiS310Sync();
+   }
+
+}
+
+void fbcon_sis_copyarea(struct fb_info *info, struct fb_copyarea *area)
+{
+   int xdir, ydir;
+   CRITFLAGS
+
+   TWDEBUG("Inside sis_copyarea");
+   if(!sisfb_accel) {
+   	cfb_copyarea(info, area);
+	return;
+   }
+
+   if(!area->width || !area->height)
+   	return;
+
+   if(area->sx < area->dx) xdir = 0;
+   else                    xdir = 1;
+   if(area->sy < area->dy) ydir = 0;
+   else                    ydir = 1;
+
+   if(sisvga_engine == SIS_300_VGA) {
+      CRITBEGIN
+      SiS300SetupForScreenToScreenCopy(xdir, ydir, 3, 0, -1);
+      SiS300SubsequentScreenToScreenCopy(area->sx, area->sy, area->dx, area->dy, area->width, area->height);
+      CRITEND
+      SiS300Sync();
+   } else {
+      CRITBEGIN
+      SiS310SetupForScreenToScreenCopy(xdir, ydir, 3, 0, -1);
+      SiS310SubsequentScreenToScreenCopy(area->sx, area->sy, area->dx, area->dy, area->width, area->height);
+      CRITEND
+      SiS310Sync();
+   }
+}
+
+#endif
+
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,33)  /* ------ KERNEL <2.5.34 ------ */
+
+void fbcon_sis_bmove(struct display *p, int srcy, int srcx,
+			    int dsty, int dstx, int height, int width)
+{
+        int xdir, ydir;
+	CRITFLAGS
+
+	srcx *= fontwidth(p);
+	srcy *= fontheight(p);
+	dstx *= fontwidth(p);
+	dsty *= fontheight(p);
+	width *= fontwidth(p);
+	height *= fontheight(p);
+
+
+	if(srcx < dstx) xdir = 0;
+	else            xdir = 1;
+	if(srcy < dsty) ydir = 0;
+	else            ydir = 1;
+
+	if(sisvga_engine == SIS_300_VGA) {
+	   CRITBEGIN
+	   SiS300SetupForScreenToScreenCopy(xdir, ydir, 3, 0, -1);
+	   SiS300SubsequentScreenToScreenCopy(srcx, srcy, dstx, dsty, width, height);
+	   CRITEND
+	   SiS300Sync();
+	} else {
+	   CRITBEGIN
+	   SiS310SetupForScreenToScreenCopy(xdir, ydir, 3, 0, -1);
+	   SiS310SubsequentScreenToScreenCopy(srcx, srcy, dstx, dsty, width, height);
+	   CRITEND
+	   SiS310Sync();
+	}
+}
+
+
+static void fbcon_sis_clear(struct vc_data *conp, struct display *p,
+			int srcy, int srcx, int height, int width, int color)
+{
+	CRITFLAGS
+
+	srcx *= fontwidth(p);
+	srcy *= fontheight(p);
+	width *= fontwidth(p);
+	height *= fontheight(p);
+
+	if(sisvga_engine == SIS_300_VGA) {
+	   CRITBEGIN
+	   SiS300SetupForSolidFill(color, 3, 0);
+	   SiS300SubsequentSolidFillRect(srcx, srcy, width, height);
+	   CRITEND
+	   SiS300Sync();
+	} else {
+	   CRITBEGIN
+	   SiS310SetupForSolidFill(color, 3, 0);
+	   SiS310SubsequentSolidFillRect(srcx, srcy, width, height);
+	   CRITEND
+	   SiS310Sync();
+	}
+}
+
+void fbcon_sis_clear8(struct vc_data *conp, struct display *p,
+			int srcy, int srcx, int height, int width)
+{
+	u32 bgx;
+
+	bgx = attr_bgcol_ec(p, conp);
+	fbcon_sis_clear(conp, p, srcy, srcx, height, width, bgx);
+}
+
+void fbcon_sis_clear16(struct vc_data *conp, struct display *p,
+			int srcy, int srcx, int height, int width)
+{
+	u32 bgx;
+
+	bgx = ((u_int16_t*)p->dispsw_data)[attr_bgcol_ec(p, conp)];
+	fbcon_sis_clear(conp, p, srcy, srcx, height, width, bgx);
+}
+
+void fbcon_sis_clear32(struct vc_data *conp, struct display *p,
+			int srcy, int srcx, int height, int width)
+{
+	u32 bgx;
+
+	bgx = ((u_int32_t*)p->dispsw_data)[attr_bgcol_ec(p, conp)];
+	fbcon_sis_clear(conp, p, srcy, srcx, height, width, bgx);
+}
+
+void fbcon_sis_revc(struct display *p, int srcx, int srcy)
+{
+	CRITFLAGS
+
+	srcx *= fontwidth(p);
+	srcy *= fontheight(p);
+
+	if(sisvga_engine == SIS_300_VGA) {
+	   CRITBEGIN
+	   SiS300SetupForSolidFill(0, 0x0a, 0);
+	   SiS300SubsequentSolidFillRect(srcx, srcy, fontwidth(p), fontheight(p));
+	   CRITEND
+	   SiS300Sync();
+	} else {
+	   CRITBEGIN
+	   SiS310SetupForSolidFill(0, 0x0a, 0);
+	   SiS310SubsequentSolidFillRect(srcx, srcy, fontwidth(p), fontheight(p));
+	   CRITEND
+	   SiS310Sync();
+	}
+}
+
+#ifdef FBCON_HAS_CFB8
+struct display_switch fbcon_sis8 = {
+	setup:			fbcon_cfb8_setup,
+	bmove:			fbcon_sis_bmove,
+	clear:			fbcon_sis_clear8,
+	putc:			fbcon_cfb8_putc,
+	putcs:			fbcon_cfb8_putcs,
+	revc:			fbcon_cfb8_revc,
+	clear_margins:		fbcon_cfb8_clear_margins,
+	fontwidthmask:		FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
+};
+#endif
+#ifdef FBCON_HAS_CFB16
+struct display_switch fbcon_sis16 = {
+	setup:			fbcon_cfb16_setup,
+	bmove:			fbcon_sis_bmove,
+	clear:			fbcon_sis_clear16,
+	putc:			fbcon_cfb16_putc,
+	putcs:			fbcon_cfb16_putcs,
+	revc:			fbcon_sis_revc,
+	clear_margins:		fbcon_cfb16_clear_margins,
+	fontwidthmask:		FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
+};
+#endif
+#ifdef FBCON_HAS_CFB32
+struct display_switch fbcon_sis32 = {
+	setup:			fbcon_cfb32_setup,
+	bmove:			fbcon_sis_bmove,
+	clear:			fbcon_sis_clear32,
+	putc:			fbcon_cfb32_putc,
+	putcs:			fbcon_cfb32_putcs,
+	revc:			fbcon_sis_revc,
+	clear_margins:		fbcon_cfb32_clear_margins,
+	fontwidthmask:		FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
+};
+#endif
+
+#endif /* KERNEL VERSION */
+
+