/* * 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 * * 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 X driver's sis300_accel.h which is * Copyright (C) 2001-2004 by Thomas Winischhofer, Vienna, Austria * and sis310_accel.h which is * Copyright (C) 2001-2004 by Thomas Winischhofer, Vienna, Austria * * Author: Thomas Winischhofer : * (see http://www.winischhofer.net/ * for more information and updates) */ #ifndef _SISFB_ACCEL_H #define _SISFB_ACCEL_H /* Guard accelerator accesses with spin_lock_irqsave? Works well without. */ #undef SISFB_USE_SPINLOCKS #ifdef SISFB_USE_SPINLOCKS #include #define CRITBEGIN spin_lock_irqsave(&ivideo.lockaccel), critflags); #define CRITEND spin_unlock_irqrestore(&ivideo.lockaccel), critflags); #define CRITFLAGS unsigned long critflags; #else #define CRITBEGIN #define CRITEND #define CRITFLAGS #endif /* Definitions for the SIS engine communication. */ #define PATREGSIZE 384 /* Pattern register size. 384 bytes @ 0x8300 */ #define BR(x) (0x8200 | (x) << 2) #define PBR(x) (0x8300 | (x) << 2) /* SiS300 engine commands */ #define BITBLT 0x00000000 /* Blit */ #define COLOREXP 0x00000001 /* Color expand */ #define ENCOLOREXP 0x00000002 /* Enhanced color expand */ #define MULTIPLE_SCANLINE 0x00000003 /* ? */ #define LINE 0x00000004 /* Draw line */ #define TRAPAZOID_FILL 0x00000005 /* Fill trapezoid */ #define TRANSPARENT_BITBLT 0x00000006 /* Transparent Blit */ /* Additional engine commands for 315 */ #define ALPHA_BLEND 0x00000007 /* Alpha blend ? */ #define A3D_FUNCTION 0x00000008 /* 3D command ? */ #define CLEAR_Z_BUFFER 0x00000009 /* ? */ #define GRADIENT_FILL 0x0000000A /* Gradient fill */ #define STRETCH_BITBLT 0x0000000B /* Stretched Blit */ /* source select */ #define SRCVIDEO 0x00000000 /* source is video RAM */ #define SRCSYSTEM 0x00000010 /* source is system memory */ #define SRCCPUBLITBUF SRCSYSTEM /* source is CPU-driven BitBuffer (for color expand) */ #define SRCAGP 0x00000020 /* source is AGP memory (?) */ /* Pattern flags */ #define PATFG 0x00000000 /* foreground color */ #define PATPATREG 0x00000040 /* pattern in pattern buffer (0x8300) */ #define PATMONO 0x00000080 /* mono pattern */ /* blitting direction (300 series only) */ #define X_INC 0x00010000 #define X_DEC 0x00000000 #define Y_INC 0x00020000 #define Y_DEC 0x00000000 /* Clipping flags */ #define NOCLIP 0x00000000 #define NOMERGECLIP 0x04000000 #define CLIPENABLE 0x00040000 #define CLIPWITHOUTMERGE 0x04040000 /* Transparency */ #define OPAQUE 0x00000000 #define TRANSPARENT 0x00100000 /* ? */ #define DSTAGP 0x02000000 #define DSTVIDEO 0x02000000 /* Line */ #define LINE_STYLE 0x00800000 #define NO_RESET_COUNTER 0x00400000 #define NO_LAST_PIXEL 0x00200000 /* Subfunctions for Color/Enhanced Color Expansion (315 only) */ #define COLOR_TO_MONO 0x00100000 #define AA_TEXT 0x00200000 /* Some general registers for 315 series */ #define SRC_ADDR 0x8200 #define SRC_PITCH 0x8204 #define AGP_BASE 0x8206 /* color-depth dependent value */ #define SRC_Y 0x8208 #define SRC_X 0x820A #define DST_Y 0x820C #define DST_X 0x820E #define DST_ADDR 0x8210 #define DST_PITCH 0x8214 #define DST_HEIGHT 0x8216 #define RECT_WIDTH 0x8218 #define RECT_HEIGHT 0x821A #define PAT_FGCOLOR 0x821C #define PAT_BGCOLOR 0x8220 #define SRC_FGCOLOR 0x8224 #define SRC_BGCOLOR 0x8228 #define MONO_MASK 0x822C #define LEFT_CLIP 0x8234 #define TOP_CLIP 0x8236 #define RIGHT_CLIP 0x8238 #define BOTTOM_CLIP 0x823A #define COMMAND_READY 0x823C #define FIRE_TRIGGER 0x8240 #define PATTERN_REG 0x8300 /* 384 bytes pattern buffer */ /* Line registers */ #define LINE_X0 SRC_Y #define LINE_X1 DST_Y #define LINE_Y0 SRC_X #define LINE_Y1 DST_X #define LINE_COUNT RECT_WIDTH #define LINE_STYLE_PERIOD RECT_HEIGHT #define LINE_STYLE_0 MONO_MASK #define LINE_STYLE_1 0x8230 #define LINE_XN PATTERN_REG #define LINE_YN PATTERN_REG+2 /* Transparent bitblit registers */ #define TRANS_DST_KEY_HIGH PAT_FGCOLOR #define TRANS_DST_KEY_LOW PAT_BGCOLOR #define TRANS_SRC_KEY_HIGH SRC_FGCOLOR #define TRANS_SRC_KEY_LOW SRC_BGCOLOR /* Queue */ #define Q_BASE_ADDR 0x85C0 /* Base address of software queue (?) */ #define Q_WRITE_PTR 0x85C4 /* Current write pointer (?) */ #define Q_READ_PTR 0x85C8 /* Current read pointer (?) */ #define Q_STATUS 0x85CC /* queue status */ #define MMIO_IN8(base, offset) \ *(volatile u8 *)(((u8*)(base)) + (offset)) #define MMIO_IN16(base, offset) \ *(volatile u16 *)(void *)(((u8*)(base)) + (offset)) #define MMIO_IN32(base, offset) \ *(volatile u32 *)(void *)(((u8*)(base)) + (offset)) #define MMIO_OUT8(base, offset, val) \ *(volatile u8 *)(((u8*)(base)) + (offset)) = (val) #define MMIO_OUT16(base, offset, val) \ *(volatile u16 *)(void *)(((u8*)(base)) + (offset)) = (val) #define MMIO_OUT32(base, offset, val) \ *(volatile u32 *)(void *)(((u8*)(base)) + (offset)) = (val) /* ------------- SiS 300 series -------------- */ /* Macros to do useful things with the SIS BitBLT engine */ /* BR(16) (0x8420): bit 31 2D engine: 1 is idle, bit 30 3D engine: 1 is idle, bit 29 Command queue: 1 is empty bits 28:24: Current CPU driven BitBlt buffer stage bit[4:0] bits 15:0: Current command queue length */ /* TW: BR(16)+2 = 0x8242 */ int CmdQueLen; #define SiS300Idle \ { \ while( (MMIO_IN16(ivideo.mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){}; \ while( (MMIO_IN16(ivideo.mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){}; \ while( (MMIO_IN16(ivideo.mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){}; \ CmdQueLen=MMIO_IN16(ivideo.mmio_vbase, 0x8240); \ } /* TW: (do three times, because 2D engine seems quite unsure about whether or not it's idle) */ #define SiS300SetupSRCBase(base) \ if (CmdQueLen <= 0) SiS300Idle;\ MMIO_OUT32(ivideo.mmio_vbase, BR(0), base);\ CmdQueLen --; #define SiS300SetupSRCPitch(pitch) \ if (CmdQueLen <= 0) SiS300Idle;\ MMIO_OUT16(ivideo.mmio_vbase, BR(1), pitch);\ CmdQueLen --; #define SiS300SetupSRCXY(x,y) \ if (CmdQueLen <= 0) SiS300Idle;\ MMIO_OUT32(ivideo.mmio_vbase, BR(2), (x)<<16 | (y) );\ CmdQueLen --; #define SiS300SetupDSTBase(base) \ if (CmdQueLen <= 0) SiS300Idle;\ MMIO_OUT32(ivideo.mmio_vbase, BR(4), base);\ CmdQueLen --; #define SiS300SetupDSTXY(x,y) \ if (CmdQueLen <= 0) SiS300Idle;\ MMIO_OUT32(ivideo.mmio_vbase, BR(3), (x)<<16 | (y) );\ CmdQueLen --; #define SiS300SetupDSTRect(x,y) \ if (CmdQueLen <= 0) SiS300Idle;\ MMIO_OUT32(ivideo.mmio_vbase, BR(5), (y)<<16 | (x) );\ CmdQueLen --; #define SiS300SetupDSTColorDepth(bpp) \ if (CmdQueLen <= 0) SiS300Idle;\ MMIO_OUT16(ivideo.mmio_vbase, BR(1)+2, bpp);\ CmdQueLen --; #define SiS300SetupRect(w,h) \ if (CmdQueLen <= 0) SiS300Idle;\ MMIO_OUT32(ivideo.mmio_vbase, BR(6), (h)<<16 | (w) );\ CmdQueLen --; #define SiS300SetupPATFG(color) \ if (CmdQueLen <= 0) SiS300Idle;\ MMIO_OUT32(ivideo.mmio_vbase, BR(7), color);\ CmdQueLen --; #define SiS300SetupPATBG(color) \ if (CmdQueLen <= 0) SiS300Idle;\ MMIO_OUT32(ivideo.mmio_vbase, BR(8), color);\ CmdQueLen --; #define SiS300SetupSRCFG(color) \ if (CmdQueLen <= 0) SiS300Idle;\ MMIO_OUT32(ivideo.mmio_vbase, BR(9), color);\ CmdQueLen --; #define SiS300SetupSRCBG(color) \ if (CmdQueLen <= 0) SiS300Idle;\ MMIO_OUT32(ivideo.mmio_vbase, BR(10), color);\ CmdQueLen --; /* 0x8224 src colorkey high */ /* 0x8228 src colorkey low */ /* 0x821c dest colorkey high */ /* 0x8220 dest colorkey low */ #define SiS300SetupSRCTrans(color) \ if (CmdQueLen <= 1) SiS300Idle;\ MMIO_OUT32(ivideo.mmio_vbase, 0x8224, color);\ MMIO_OUT32(ivideo.mmio_vbase, 0x8228, color);\ CmdQueLen -= 2; #define SiS300SetupDSTTrans(color) \ if (CmdQueLen <= 1) SiS300Idle;\ MMIO_OUT32(ivideo.mmio_vbase, 0x821C, color); \ MMIO_OUT32(ivideo.mmio_vbase, 0x8220, color); \ CmdQueLen -= 2; #define SiS300SetupMONOPAT(p0,p1) \ if (CmdQueLen <= 1) SiS300Idle;\ MMIO_OUT32(ivideo.mmio_vbase, BR(11), p0);\ MMIO_OUT32(ivideo.mmio_vbase, BR(12), p1);\ CmdQueLen -= 2; #define SiS300SetupClipLT(left,top) \ if (CmdQueLen <= 0) SiS300Idle;\ MMIO_OUT32(ivideo.mmio_vbase, BR(13), ((left) & 0xFFFF) | (top)<<16 );\ CmdQueLen--; #define SiS300SetupClipRB(right,bottom) \ if (CmdQueLen <= 0) SiS300Idle;\ MMIO_OUT32(ivideo.mmio_vbase, BR(14), ((right) & 0xFFFF) | (bottom)<<16 );\ CmdQueLen--; /* General */ #define SiS300SetupROP(rop) \ ivideo.CommandReg = (rop) << 8; #define SiS300SetupCMDFlag(flags) \ ivideo.CommandReg |= (flags); #define SiS300DoCMD \ if (CmdQueLen <= 1) SiS300Idle;\ MMIO_OUT32(ivideo.mmio_vbase, BR(15), ivideo.CommandReg); \ MMIO_OUT32(ivideo.mmio_vbase, BR(16), 0);\ CmdQueLen -= 2; /* Line */ #define SiS300SetupX0Y0(x,y) \ if (CmdQueLen <= 0) SiS300Idle;\ MMIO_OUT32(ivideo.mmio_vbase, BR(2), (y)<<16 | (x) );\ CmdQueLen--; #define SiS300SetupX1Y1(x,y) \ if (CmdQueLen <= 0) SiS300Idle;\ MMIO_OUT32(ivideo.mmio_vbase, BR(3), (y)<<16 | (x) );\ CmdQueLen--; #define SiS300SetupLineCount(c) \ if (CmdQueLen <= 0) SiS300Idle;\ MMIO_OUT16(ivideo.mmio_vbase, BR(6), c);\ CmdQueLen--; #define SiS300SetupStylePeriod(p) \ if (CmdQueLen <= 0) SiS300Idle;\ MMIO_OUT16(ivideo.mmio_vbase, BR(6)+2, p);\ CmdQueLen--; #define SiS300SetupStyleLow(ls) \ if (CmdQueLen <= 0) SiS300Idle;\ MMIO_OUT32(ivideo.mmio_vbase, BR(11), ls);\ CmdQueLen--; #define SiS300SetupStyleHigh(ls) \ if (CmdQueLen <= 0) SiS300Idle;\ MMIO_OUT32(ivideo.mmio_vbase, BR(12), ls);\ CmdQueLen--; /* -------------- SiS 315 series --------------- */ /* Q_STATUS: bit 31 = 1: All engines idle and all queues empty bit 30 = 1: Hardware Queue (=HW CQ, 2D queue, 3D queue) empty bit 29 = 1: 2D engine is idle bit 28 = 1: 3D engine is idle bit 27 = 1: HW command queue empty bit 26 = 1: 2D queue empty bit 25 = 1: 3D queue empty bit 24 = 1: SW command queue empty bits 23:16: 2D counter 3 bits 15:8: 2D counter 2 bits 7:0: 2D counter 1 Where is the command queue length (current amount of commands the queue can accept) on the 315 series? */ /* TW: FIXME: CmdQueLen is... where....? */ /* We assume a length of 4 bytes per command; since 512K of * of RAM are allocated, the number of commands is easily * calculated (assuming that there is no 3D support yet) * We calculate it very cautiously (128K only) and let the * rest to the (never?)-to-come (?) 3D engine. (The 3D engine * can use a similar technique, using the remaining 384K, * hence a queue overflow is avoided) * UPDATE: This technique causes a terrible system latency * on integrated chipsets. Disable the queue handling for * now. */ #define SiS310Idle \ { \ while( (MMIO_IN16(ivideo.mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){}; \ while( (MMIO_IN16(ivideo.mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){}; \ CmdQueLen = 0; \ /*CmdQueLen = ((128 * 1024) / 4) - 64; */ \ } #define SiS310SetupSRCBase(base) \ if (CmdQueLen <= 0) SiS310Idle;\ MMIO_OUT32(ivideo.mmio_vbase, SRC_ADDR, base);\ CmdQueLen--; #define SiS310SetupSRCPitch(pitch) \ if (CmdQueLen <= 0) SiS310Idle;\ MMIO_OUT16(ivideo.mmio_vbase, SRC_PITCH, pitch);\ CmdQueLen--; #define SiS310SetupSRCXY(x,y) \ if (CmdQueLen <= 0) SiS310Idle;\ MMIO_OUT32(ivideo.mmio_vbase, SRC_Y, (x)<<16 | (y) );\ CmdQueLen--; #define SiS310SetupDSTBase(base) \ if (CmdQueLen <= 0) SiS310Idle;\ MMIO_OUT32(ivideo.mmio_vbase, DST_ADDR, base);\ CmdQueLen--; #define SiS310SetupDSTXY(x,y) \ if (CmdQueLen <= 0) SiS310Idle;\ MMIO_OUT32(ivideo.mmio_vbase, DST_Y, (x)<<16 | (y) );\ CmdQueLen--; #define SiS310SetupDSTRect(x,y) \ if (CmdQueLen <= 0) SiS310Idle;\ MMIO_OUT32(ivideo.mmio_vbase, DST_PITCH, (y)<<16 | (x) );\ CmdQueLen--; #define SiS310SetupDSTColorDepth(bpp) \ if (CmdQueLen <= 0) SiS310Idle;\ MMIO_OUT16(ivideo.mmio_vbase, AGP_BASE, bpp);\ CmdQueLen--; #define SiS310SetupRect(w,h) \ if (CmdQueLen <= 0) SiS310Idle;\ MMIO_OUT32(ivideo.mmio_vbase, RECT_WIDTH, (h)<<16 | (w) );\ CmdQueLen--; #define SiS310SetupPATFG(color) \ if (CmdQueLen <= 0) SiS310Idle;\ MMIO_OUT32(ivideo.mmio_vbase, PAT_FGCOLOR, color);\ CmdQueLen--; #define SiS310SetupPATBG(color) \ if (CmdQueLen <= 0) SiS310Idle;\ MMIO_OUT32(ivideo.mmio_vbase, PAT_BGCOLOR, color);\ CmdQueLen--; #define SiS310SetupSRCFG(color) \ if (CmdQueLen <= 0) SiS310Idle;\ MMIO_OUT32(ivideo.mmio_vbase, SRC_FGCOLOR, color);\ CmdQueLen--; #define SiS310SetupSRCBG(color) \ if (CmdQueLen <= 0) SiS310Idle;\ MMIO_OUT32(ivideo.mmio_vbase, SRC_BGCOLOR, color);\ CmdQueLen--; #define SiS310SetupSRCTrans(color) \ if (CmdQueLen <= 1) SiS310Idle;\ MMIO_OUT32(ivideo.mmio_vbase, TRANS_SRC_KEY_HIGH, color);\ MMIO_OUT32(ivideo.mmio_vbase, TRANS_SRC_KEY_LOW, color);\ CmdQueLen -= 2; #define SiS310SetupDSTTrans(color) \ if (CmdQueLen <= 1) SiS310Idle;\ MMIO_OUT32(ivideo.mmio_vbase, TRANS_DST_KEY_HIGH, color); \ MMIO_OUT32(ivideo.mmio_vbase, TRANS_DST_KEY_LOW, color); \ CmdQueLen -= 2; #define SiS310SetupMONOPAT(p0,p1) \ if (CmdQueLen <= 1) SiS310Idle;\ MMIO_OUT32(ivideo.mmio_vbase, MONO_MASK, p0);\ MMIO_OUT32(ivideo.mmio_vbase, MONO_MASK+4, p1);\ CmdQueLen -= 2; #define SiS310SetupClipLT(left,top) \ if (CmdQueLen <= 0) SiS310Idle;\ MMIO_OUT32(ivideo.mmio_vbase, LEFT_CLIP, ((left) & 0xFFFF) | (top)<<16 );\ CmdQueLen--; #define SiS310SetupClipRB(right,bottom) \ if (CmdQueLen <= 0) SiS310Idle;\ MMIO_OUT32(ivideo.mmio_vbase, RIGHT_CLIP, ((right) & 0xFFFF) | (bottom)<<16 );\ CmdQueLen--; #define SiS310SetupROP(rop) \ ivideo.CommandReg = (rop) << 8; #define SiS310SetupCMDFlag(flags) \ ivideo.CommandReg |= (flags); #define SiS310DoCMD \ if (CmdQueLen <= 1) SiS310Idle;\ MMIO_OUT32(ivideo.mmio_vbase, COMMAND_READY, ivideo.CommandReg); \ MMIO_OUT32(ivideo.mmio_vbase, FIRE_TRIGGER, 0); \ CmdQueLen -= 2; #define SiS310SetupX0Y0(x,y) \ if (CmdQueLen <= 0) SiS310Idle;\ MMIO_OUT32(ivideo.mmio_vbase, LINE_X0, (y)<<16 | (x) );\ CmdQueLen--; #define SiS310SetupX1Y1(x,y) \ if (CmdQueLen <= 0) SiS310Idle;\ MMIO_OUT32(ivideo.mmio_vbase, LINE_X1, (y)<<16 | (x) );\ CmdQueLen--; #define SiS310SetupLineCount(c) \ if (CmdQueLen <= 0) SiS310Idle;\ MMIO_OUT16(ivideo.mmio_vbase, LINE_COUNT, c);\ CmdQueLen--; #define SiS310SetupStylePeriod(p) \ if (CmdQueLen <= 0) SiS310Idle;\ MMIO_OUT16(ivideo.mmio_vbase, LINE_STYLE_PERIOD, p);\ CmdQueLen--; #define SiS310SetupStyleLow(ls) \ if (CmdQueLen <= 0) SiS310Idle;\ MMIO_OUT32(ivideo.mmio_vbase, LINE_STYLE_0, ls);\ CmdQueLen--; #define SiS310SetupStyleHigh(ls) \ if (CmdQueLen <= 0) SiS310Idle;\ MMIO_OUT32(ivideo.mmio_vbase, LINE_STYLE_1, ls);\ CmdQueLen--; int sisfb_initaccel(void); void sisfb_syncaccel(void); extern struct video_info ivideo; #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,33) void fbcon_sis_bmove(struct display *p, int srcy, int srcx, int dsty, int dstx, int height, int width); void fbcon_sis_revc(struct display *p, int srcy, int srcx); void fbcon_sis_clear8(struct vc_data *conp, struct display *p, int srcy, int srcx, int height, int width); void fbcon_sis_clear16(struct vc_data *conp, struct display *p, int srcy, int srcx, int height, int width); void fbcon_sis_clear32(struct vc_data *conp, struct display *p, int srcy, int srcx, int height, int width); #endif #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,34) extern int sisfb_accel; void fbcon_sis_fillrect(struct fb_info *info, const struct fb_fillrect *rect); void fbcon_sis_copyarea(struct fb_info *info, const struct fb_copyarea *area); #endif #endif