sis_accel.c
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上传日期:2013-04-10
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- /*
- * 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 */