--- /dev/null
+/*
+ * SiS 300/540/630[S]/730[S],
+ * SiS 315[E|PRO]/550/[M]650/651/[M]661[F|M]X/740/[M]741[GX]/330/[M]760[GX],
+ * XGI V3XT/V5/V8, Z7
+ * frame buffer driver for Linux kernels >= 2.4.14 and >=2.6.3
+ *
+ * 2D acceleration part
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the named License,
+ * or any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
+ *
+ * Based on the XFree86/X.org driver which is
+ * Copyright (C) 2001-2005 by Thomas Winischhofer, Vienna, Austria
+ *
+ * Author: Thomas Winischhofer <thomas@winischhofer.net>
+ * (see http://www.winischhofer.net/
+ * for more information and updates)
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/fb.h>
+#include <linux/ioport.h>
+#include <linux/types.h>
+#include <asm/io.h>
+
+#include "sis.h"
+#include "sis_accel.h"
+
+static const u8 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 u8 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 */
+};
+
+static const int myrops[] = {
+ 3, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3
+};
+
+/* 300 series ----------------------------------------------------- */
+#ifdef CONFIG_FB_SIS_300
+static void
+SiS300Sync(struct sis_video_info *ivideo)
+{
+ SiS300Idle
+}
+
+static void
+SiS300SetupForScreenToScreenCopy(struct sis_video_info *ivideo, int xdir, int ydir,
+ int rop, int trans_color)
+{
+ SiS300SetupDSTColorDepth(ivideo->DstColor);
+ SiS300SetupSRCPitch(ivideo->video_linelength)
+ SiS300SetupDSTRect(ivideo->video_linelength, 0xffff)
+
+ 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(struct sis_video_info *ivideo, int src_x,
+ int src_y, int dst_x, int dst_y, int width, int height)
+{
+ u32 srcbase = 0, 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(struct sis_video_info *ivideo, u32 color, int rop)
+{
+ SiS300SetupPATFG(color)
+ SiS300SetupDSTRect(ivideo->video_linelength, 0xffff)
+ SiS300SetupDSTColorDepth(ivideo->DstColor);
+ SiS300SetupROP(sisPatALUConv[rop])
+ SiS300SetupCMDFlag(PATFG)
+}
+
+static void
+SiS300SubsequentSolidFillRect(struct sis_video_info *ivideo, int x, int y, int w, int h)
+{
+ u32 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
+}
+#endif
+
+/* 315/330/340 series ---------------------------------------------- */
+
+#ifdef CONFIG_FB_SIS_315
+static void
+SiS310Sync(struct sis_video_info *ivideo)
+{
+ SiS310Idle
+}
+
+static void
+SiS310SetupForScreenToScreenCopy(struct sis_video_info *ivideo, int rop, int trans_color)
+{
+ SiS310SetupDSTColorDepth(ivideo->DstColor);
+ SiS310SetupSRCPitch(ivideo->video_linelength)
+ SiS310SetupDSTRect(ivideo->video_linelength, 0x0fff)
+ 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)
+ /* The chip is smart enough to know the direction */
+}
+
+static void
+SiS310SubsequentScreenToScreenCopy(struct sis_video_info *ivideo, int src_x, int src_y,
+ int dst_x, int dst_y, int width, int height)
+{
+ u32 srcbase = 0, dstbase = 0;
+ int mymin = min(src_y, dst_y);
+ int mymax = max(src_y, dst_y);
+
+ /* Although the chip knows the direction to use
+ * if the source and destination areas overlap,
+ * that logic fails if we fiddle with the bitmap
+ * addresses. Therefore, we check if the source
+ * and destination blitting areas overlap and
+ * adapt the bitmap addresses synchronously
+ * if the coordinates exceed the valid range.
+ * The the areas do not overlap, we do our
+ * normal check.
+ */
+ if((mymax - mymin) < height) {
+ if((src_y >= 2048) || (dst_y >= 2048)) {
+ srcbase = ivideo->video_linelength * mymin;
+ dstbase = ivideo->video_linelength * mymin;
+ src_y -= mymin;
+ dst_y -= mymin;
+ }
+ } else {
+ 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;
+ }
+ }
+
+ srcbase += ivideo->video_offset;
+ dstbase += ivideo->video_offset;
+
+ SiS310SetupSRCBase(srcbase);
+ SiS310SetupDSTBase(dstbase);
+ SiS310SetupRect(width, height)
+ SiS310SetupSRCXY(src_x, src_y)
+ SiS310SetupDSTXY(dst_x, dst_y)
+ SiS310DoCMD
+}
+
+static void
+SiS310SetupForSolidFill(struct sis_video_info *ivideo, u32 color, int rop)
+{
+ SiS310SetupPATFG(color)
+ SiS310SetupDSTRect(ivideo->video_linelength, 0x0fff)
+ SiS310SetupDSTColorDepth(ivideo->DstColor);
+ SiS310SetupROP(sisPatALUConv[rop])
+ SiS310SetupCMDFlag(PATFG | ivideo->SiS310_AccelDepth)
+}
+
+static void
+SiS310SubsequentSolidFillRect(struct sis_video_info *ivideo, int x, int y, int w, int h)
+{
+ u32 dstbase = 0;
+
+ if(y >= 2048) {
+ dstbase = ivideo->video_linelength * y;
+ y = 0;
+ }
+ dstbase += ivideo->video_offset;
+ SiS310SetupDSTBase(dstbase)
+ SiS310SetupDSTXY(x,y)
+ SiS310SetupRect(w,h)
+ SiS310SetupCMDFlag(BITBLT)
+ SiS310DoCMD
+}
+#endif
+
+/* --------------------------------------------------------------------- */
+
+/* The exported routines */
+
+int sisfb_initaccel(struct sis_video_info *ivideo)
+{
+#ifdef SISFB_USE_SPINLOCKS
+ spin_lock_init(&ivideo->lockaccel);
+#endif
+ return 0;
+}
+
+void sisfb_syncaccel(struct sis_video_info *ivideo)
+{
+ if(ivideo->sisvga_engine == SIS_300_VGA) {
+#ifdef CONFIG_FB_SIS_300
+ SiS300Sync(ivideo);
+#endif
+ } else {
+#ifdef CONFIG_FB_SIS_315
+ SiS310Sync(ivideo);
+#endif
+ }
+}
+
+int fbcon_sis_sync(struct fb_info *info)
+{
+ struct sis_video_info *ivideo = (struct sis_video_info *)info->par;
+ CRITFLAGS
+
+ if((!ivideo->accel) || (!ivideo->engineok))
+ return 0;
+
+ CRITBEGIN
+ sisfb_syncaccel(ivideo);
+ CRITEND
+
+ return 0;
+}
+
+void fbcon_sis_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
+{
+ struct sis_video_info *ivideo = (struct sis_video_info *)info->par;
+ u32 col = 0;
+ u32 vxres = info->var.xres_virtual;
+ u32 vyres = info->var.yres_virtual;
+ int width, height;
+ CRITFLAGS
+
+ if(info->state != FBINFO_STATE_RUNNING)
+ return;
+
+ if((!ivideo->accel) || (!ivideo->engineok)) {
+ cfb_fillrect(info, rect);
+ return;
+ }
+
+ if(!rect->width || !rect->height || rect->dx >= vxres || rect->dy >= vyres)
+ return;
+
+ /* Clipping */
+ width = ((rect->dx + rect->width) > vxres) ? (vxres - rect->dx) : rect->width;
+ height = ((rect->dy + rect->height) > vyres) ? (vyres - rect->dy) : rect->height;
+
+ switch(info->var.bits_per_pixel) {
+ case 8: col = rect->color;
+ break;
+ case 16:
+ case 32: col = ((u32 *)(info->pseudo_palette))[rect->color];
+ break;
+ }
+
+ if(ivideo->sisvga_engine == SIS_300_VGA) {
+#ifdef CONFIG_FB_SIS_300
+ CRITBEGIN
+ SiS300SetupForSolidFill(ivideo, col, myrops[rect->rop]);
+ SiS300SubsequentSolidFillRect(ivideo, rect->dx, rect->dy, width, height);
+ CRITEND
+#endif
+ } else {
+#ifdef CONFIG_FB_SIS_315
+ CRITBEGIN
+ SiS310SetupForSolidFill(ivideo, col, myrops[rect->rop]);
+ SiS310SubsequentSolidFillRect(ivideo, rect->dx, rect->dy, width, height);
+ CRITEND
+#endif
+ }
+
+ sisfb_syncaccel(ivideo);
+}
+
+void fbcon_sis_copyarea(struct fb_info *info, const struct fb_copyarea *area)
+{
+ struct sis_video_info *ivideo = (struct sis_video_info *)info->par;
+ u32 vxres = info->var.xres_virtual;
+ u32 vyres = info->var.yres_virtual;
+ int width = area->width;
+ int height = area->height;
+ CRITFLAGS
+
+ if(info->state != FBINFO_STATE_RUNNING)
+ return;
+
+ if((!ivideo->accel) || (!ivideo->engineok)) {
+ cfb_copyarea(info, area);
+ return;
+ }
+
+ if(!width || !height ||
+ area->sx >= vxres || area->sy >= vyres ||
+ area->dx >= vxres || area->dy >= vyres)
+ return;
+
+ /* Clipping */
+ if((area->sx + width) > vxres) width = vxres - area->sx;
+ if((area->dx + width) > vxres) width = vxres - area->dx;
+ if((area->sy + height) > vyres) height = vyres - area->sy;
+ if((area->dy + height) > vyres) height = vyres - area->dy;
+
+ if(ivideo->sisvga_engine == SIS_300_VGA) {
+#ifdef CONFIG_FB_SIS_300
+ int xdir, ydir;
+
+ if(area->sx < area->dx) xdir = 0;
+ else xdir = 1;
+ if(area->sy < area->dy) ydir = 0;
+ else ydir = 1;
+
+ CRITBEGIN
+ SiS300SetupForScreenToScreenCopy(ivideo, xdir, ydir, 3, -1);
+ SiS300SubsequentScreenToScreenCopy(ivideo, area->sx, area->sy,
+ area->dx, area->dy, width, height);
+ CRITEND
+#endif
+ } else {
+#ifdef CONFIG_FB_SIS_315
+ CRITBEGIN
+ SiS310SetupForScreenToScreenCopy(ivideo, 3, -1);
+ SiS310SubsequentScreenToScreenCopy(ivideo, area->sx, area->sy,
+ area->dx, area->dy, width, height);
+ CRITEND
+#endif
+ }
+
+ sisfb_syncaccel(ivideo);
+}
Code Review / kvmfornfv.git / blobdiff