| /* |
| * XGI 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 XGI300_accel.c which is |
| * Copyright Xavier Ducoin <x.ducoin@lectra.com> |
| * Copyright 2002 by Thomas Winischhofer, Vienna, Austria |
| * and XGI310_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 <asm/io.h> |
| |
| #ifdef CONFIG_MTRR |
| #include <asm/mtrr.h> |
| #endif |
| |
| #include "vgatypes.h" |
| #include "vb_struct.h" |
| #include "XGIfb.h" |
| #include "XGI_accel.h" |
| |
| static const int XGIALUConv[] = |
| { |
| 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 XGIPatALUConv[] = |
| { |
| 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 unsigned char myrops[] = { |
| 3, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 |
| }; |
| |
| /* 300 series */ |
| static void |
| XGI310Sync(void) |
| { |
| XGI310Idle |
| } |
| |
| /* 310/325 series ------------------------------------------------ */ |
| |
| static void |
| XGI310SetupForScreenToScreenCopy(int xdir, int ydir, int rop, |
| unsigned int planemask, int trans_color) |
| { |
| XGI310SetupDSTColorDepth(xgi_video_info.DstColor); |
| XGI310SetupSRCPitch(xgi_video_info.video_linelength) |
| XGI310SetupDSTRect(xgi_video_info.video_linelength, 0xFFF) |
| if (trans_color != -1) { |
| XGI310SetupROP(0x0A) |
| XGI310SetupSRCTrans(trans_color) |
| XGI310SetupCMDFlag(TRANSPARENT_BITBLT) |
| } else { |
| XGI310SetupROP(XGIALUConv[rop]) |
| /* Set command - not needed, both 0 */ |
| /* XGISetupCMDFlag(BITBLT | SRCVIDEO) */ |
| } |
| XGI310SetupCMDFlag(xgi_video_info.XGI310_AccelDepth) |
| /* TW: The 310/325 series is smart enough to know the direction */ |
| } |
| |
| static void |
| XGI310SubsequentScreenToScreenCopy(int src_x, int src_y, int dst_x, int dst_y, |
| int width, int height) |
| { |
| long srcbase, dstbase; |
| int mymin, mymax; |
| |
| srcbase = dstbase = 0; |
| mymin = min(src_y, dst_y); |
| 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 = xgi_video_info.video_linelength * mymin; |
| dstbase = xgi_video_info.video_linelength * mymin; |
| src_y -= mymin; |
| dst_y -= mymin; |
| } |
| } else { |
| if(src_y >= 2048) { |
| srcbase = xgi_video_info.video_linelength * src_y; |
| src_y = 0; |
| } |
| if(dst_y >= 2048) { |
| dstbase = xgi_video_info.video_linelength * dst_y; |
| dst_y = 0; |
| } |
| } |
| |
| XGI310SetupSRCBase(srcbase); |
| XGI310SetupDSTBase(dstbase); |
| XGI310SetupRect(width, height) |
| XGI310SetupSRCXY(src_x, src_y) |
| XGI310SetupDSTXY(dst_x, dst_y) |
| XGI310DoCMD |
| } |
| |
| static void |
| XGI310SetupForSolidFill(int color, int rop, unsigned int planemask) |
| { |
| XGI310SetupPATFG(color) |
| XGI310SetupDSTRect(xgi_video_info.video_linelength, 0xFFF) |
| XGI310SetupDSTColorDepth(xgi_video_info.DstColor); |
| XGI310SetupROP(XGIPatALUConv[rop]) |
| XGI310SetupCMDFlag(PATFG | xgi_video_info.XGI310_AccelDepth) |
| } |
| |
| static void |
| XGI310SubsequentSolidFillRect(int x, int y, int w, int h) |
| { |
| long dstbase; |
| |
| dstbase = 0; |
| if(y >= 2048) { |
| dstbase = xgi_video_info.video_linelength * y; |
| y = 0; |
| } |
| XGI310SetupDSTBase(dstbase) |
| XGI310SetupDSTXY(x,y) |
| XGI310SetupRect(w,h) |
| XGI310SetupCMDFlag(BITBLT) |
| XGI310DoCMD |
| } |
| |
| /* --------------------------------------------------------------------- */ |
| |
| /* The exported routines */ |
| |
| int XGIfb_initaccel(void) |
| { |
| #ifdef XGIFB_USE_SPINLOCKS |
| spin_lock_init(&xgi_video_info.lockaccel); |
| #endif |
| return(0); |
| } |
| |
| void XGIfb_syncaccel(void) |
| { |
| |
| XGI310Sync(); |
| |
| } |
| |
| int fbcon_XGI_sync(struct fb_info *info) |
| { |
| if(!XGIfb_accel) return 0; |
| CRITFLAGS |
| |
| XGI310Sync(); |
| |
| CRITEND |
| return 0; |
| } |
| |
| void fbcon_XGI_fillrect(struct fb_info *info, const struct fb_fillrect *rect) |
| { |
| int col=0; |
| CRITFLAGS |
| |
| |
| if(!rect->width || !rect->height) |
| return; |
| |
| if(!XGIfb_accel) { |
| cfb_fillrect(info, rect); |
| return; |
| } |
| |
| switch(info->var.bits_per_pixel) { |
| case 8: col = rect->color; |
| break; |
| case 16: col = ((u32 *)(info->pseudo_palette))[rect->color]; |
| break; |
| case 32: col = ((u32 *)(info->pseudo_palette))[rect->color]; |
| break; |
| } |
| |
| |
| CRITBEGIN |
| XGI310SetupForSolidFill(col, myrops[rect->rop], 0); |
| XGI310SubsequentSolidFillRect(rect->dx, rect->dy, rect->width, rect->height); |
| CRITEND |
| XGI310Sync(); |
| |
| |
| } |
| |
| void fbcon_XGI_copyarea(struct fb_info *info, const struct fb_copyarea *area) |
| { |
| int xdir, ydir; |
| CRITFLAGS |
| |
| |
| if(!XGIfb_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; |
| |
| CRITBEGIN |
| XGI310SetupForScreenToScreenCopy(xdir, ydir, 3, 0, -1); |
| XGI310SubsequentScreenToScreenCopy(area->sx, area->sy, area->dx, area->dy, area->width, area->height); |
| CRITEND |
| XGI310Sync(); |
| |
| } |
| |
| |
| |
