diff options
Diffstat (limited to 'drivers/video/sis/sis_accel.c')
| -rw-r--r-- | drivers/video/sis/sis_accel.c | 678 |
1 files changed, 678 insertions, 0 deletions
diff --git a/drivers/video/sis/sis_accel.c b/drivers/video/sis/sis_accel.c new file mode 100644 index 0000000..30e90a5 --- /dev/null +++ b/drivers/video/sis/sis_accel.c @@ -0,0 +1,678 @@ +/* + * SiS 300/630/730/540/315/550/65x/74x/330/760 frame buffer driver + * for Linux kernels 2.4.x and 2.6.x + * + * 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) 2001-2004 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/fb.h> +#include <linux/console.h> +#include <linux/selection.h> +#include <linux/ioport.h> +#include <linux/capability.h> +#include <linux/fs.h> +#include <linux/types.h> + +#include <asm/io.h> + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) +#include <video/fbcon.h> +#include <video/fbcon-cfb8.h> +#include <video/fbcon-cfb16.h> +#include <video/fbcon-cfb24.h> +#include <video/fbcon-cfb32.h> +#endif + +#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 */ +}; + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,34) +static const int myrops[] = { + 3, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 +}; +#endif + +/* 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 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, 0xffff) + 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 315 series 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; + } + } + + 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, 0xffff) + 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; + } + 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 + } +} + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0) /* --------------- 2.5 --------------- */ + +int fbcon_sis_sync(struct fb_info *info) +{ + struct sis_video_info *ivideo = (struct sis_video_info *)info->par; + CRITFLAGS + + if(!ivideo->accel) + return 0; + + if(ivideo->sisvga_engine == SIS_300_VGA) { +#ifdef CONFIG_FB_SIS_300 + SiS300Sync(ivideo); +#endif + } else { +#ifdef CONFIG_FB_SIS_315 + SiS310Sync(ivideo); +#endif + } + 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) { + 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 + SiS300Sync(ivideo); +#endif + } else { +#ifdef CONFIG_FB_SIS_315 + CRITBEGIN + SiS310SetupForSolidFill(ivideo, col, myrops[rect->rop]); + SiS310SubsequentSolidFillRect(ivideo, rect->dx, rect->dy, width, height); + CRITEND + SiS310Sync(ivideo); +#endif + } + +} + +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) { + 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 + SiS300Sync(ivideo); +#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 + SiS310Sync(ivideo); +#endif + } +} + +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) /* -------------- 2.4 --------------- */ + +void fbcon_sis_bmove(struct display *p, int srcy, int srcx, + int dsty, int dstx, int height, int width) +{ + struct sis_video_info *ivideo = (struct sis_video_info *)p->fb_info->par; + + CRITFLAGS + + if(!ivideo->accel) { + switch(ivideo->video_bpp) { + case 8: +#ifdef FBCON_HAS_CFB8 + fbcon_cfb8_bmove(p, srcy, srcx, dsty, dstx, height, width); +#endif + break; + case 16: +#ifdef FBCON_HAS_CFB16 + fbcon_cfb16_bmove(p, srcy, srcx, dsty, dstx, height, width); +#endif + break; + case 32: +#ifdef FBCON_HAS_CFB32 + fbcon_cfb32_bmove(p, srcy, srcx, dsty, dstx, height, width); +#endif + break; + } + return; + } + + srcx *= fontwidth(p); + srcy *= fontheight(p); + dstx *= fontwidth(p); + dsty *= fontheight(p); + width *= fontwidth(p); + height *= fontheight(p); + + if(ivideo->sisvga_engine == SIS_300_VGA) { +#ifdef CONFIG_FB_SIS_300 + int xdir, ydir; + + if(srcx < dstx) xdir = 0; + else xdir = 1; + if(srcy < dsty) ydir = 0; + else ydir = 1; + + CRITBEGIN + SiS300SetupForScreenToScreenCopy(ivideo, xdir, ydir, 3, -1); + SiS300SubsequentScreenToScreenCopy(ivideo, srcx, srcy, dstx, dsty, width, height); + CRITEND + SiS300Sync(ivideo); +#endif + } else { +#ifdef CONFIG_FB_SIS_315 + CRITBEGIN + SiS310SetupForScreenToScreenCopy(ivideo, 3, -1); + SiS310SubsequentScreenToScreenCopy(ivideo, srcx, srcy, dstx, dsty, width, height); + CRITEND + SiS310Sync(ivideo); +#endif + } +} + +static void fbcon_sis_clear(struct vc_data *conp, struct display *p, + int srcy, int srcx, int height, int width, int color) +{ + struct sis_video_info *ivideo = (struct sis_video_info *)p->fb_info->par; + CRITFLAGS + + srcx *= fontwidth(p); + srcy *= fontheight(p); + width *= fontwidth(p); + height *= fontheight(p); + + if(ivideo->sisvga_engine == SIS_300_VGA) { +#ifdef CONFIG_FB_SIS_300 + CRITBEGIN + SiS300SetupForSolidFill(ivideo, color, 3); + SiS300SubsequentSolidFillRect(ivideo, srcx, srcy, width, height); + CRITEND + SiS300Sync(ivideo); +#endif + } else { +#ifdef CONFIG_FB_SIS_315 + CRITBEGIN + SiS310SetupForSolidFill(ivideo, color, 3); + SiS310SubsequentSolidFillRect(ivideo, srcx, srcy, width, height); + CRITEND + SiS310Sync(ivideo); +#endif + } +} + +void fbcon_sis_clear8(struct vc_data *conp, struct display *p, + int srcy, int srcx, int height, int width) +{ + struct sis_video_info *ivideo = (struct sis_video_info *)p->fb_info->par; + u32 bgx; + + if(!ivideo->accel) { +#ifdef FBCON_HAS_CFB8 + fbcon_cfb8_clear(conp, p, srcy, srcx, height, width); +#endif + return; + } + + 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) +{ + struct sis_video_info *ivideo = (struct sis_video_info *)p->fb_info->par; + u32 bgx; + + if(!ivideo->accel) { +#ifdef FBCON_HAS_CFB16 + fbcon_cfb16_clear(conp, p, srcy, srcx, height, width); +#endif + return; + } + + 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) +{ + struct sis_video_info *ivideo = (struct sis_video_info *)p->fb_info->par; + u32 bgx; + + if(!ivideo->accel) { +#ifdef FBCON_HAS_CFB32 + fbcon_cfb32_clear(conp, p, srcy, srcx, height, width); +#endif + return; + } + + 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) +{ + struct sis_video_info *ivideo = (struct sis_video_info *)p->fb_info->par; + CRITFLAGS + + if(!ivideo->accel) { + switch(ivideo->video_bpp) { + case 16: +#ifdef FBCON_HAS_CFB16 + fbcon_cfb16_revc(p, srcx, srcy); +#endif + break; + case 32: +#ifdef FBCON_HAS_CFB32 + fbcon_cfb32_revc(p, srcx, srcy); +#endif + break; + } + return; + } + + srcx *= fontwidth(p); + srcy *= fontheight(p); + + if(ivideo->sisvga_engine == SIS_300_VGA) { +#ifdef CONFIG_FB_SIS_300 + CRITBEGIN + SiS300SetupForSolidFill(ivideo, 0, 0x0a); + SiS300SubsequentSolidFillRect(ivideo, srcx, srcy, fontwidth(p), fontheight(p)); + CRITEND + SiS300Sync(ivideo); +#endif + } else { +#ifdef CONFIG_FB_SIS_315 + CRITBEGIN + SiS310SetupForSolidFill(ivideo, 0, 0x0a); + SiS310SubsequentSolidFillRect(ivideo, srcx, srcy, fontwidth(p), fontheight(p)); + CRITEND + SiS310Sync(ivideo); +#endif + } +} + +#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 */ + + |
