drivers/video/sis/sis_accel.h - linux-mtk - Git at Google

 /*
  * 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 <thomas@winischhofer.net>:
  *			(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 <linux/spinlock.h>
 #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 */

 /* 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

 /* 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 */

 /* 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

 /* Store queue length in par */
 #define CmdQueLen ivideo->cmdqueuelength

 /* ------------- SiS 300 series -------------- */

 /* BR(16) (0x8240):

    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

 */

 #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); \
   }
 /* (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;

 /* -------------- SiS 315/330 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
 */

 #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; \
   }

 #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;


 int  sisfb_initaccel(struct sis_video_info *ivideo);
 void sisfb_syncaccel(struct sis_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)
 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
	/*
	* 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 <thomas@winischhofer.net>:
	* (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 <linux/spinlock.h>
	#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 */

	/* 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

	/* 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 */

	/* 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

	/* Store queue length in par */
	#define CmdQueLen ivideo->cmdqueuelength

	/* ------------- SiS 300 series -------------- */

	/* BR(16) (0x8240):

	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

	*/

	#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); \
	}
	/* (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;

	/* -------------- SiS 315/330 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
	*/

	#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; \
	}

	#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;


	int sisfb_initaccel(struct sis_video_info *ivideo);
	void sisfb_syncaccel(struct sis_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)
	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