[deliverable/linux.git] / drivers / video / sis / sis_accel.c

/*
 * SiS 300/540/630[S]/730[S],
 * SiS 315[E|PRO]/550/[M]650/651/[M]661[F|M]X/740/[M]741[GX]/330/[M]760[GX],
 * XGI V3XT/V5/V8, Z7
 * frame buffer driver for Linux kernels >= 2.4.14 and >=2.6.3
 *
 * 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) 2001-2005 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/fb.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
#include <linux/console.h>
#endif
#include <linux/ioport.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

/* 315/330/340 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, 0x0fff)
	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 chip 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;
		}
	}

	srcbase += ivideo->video_offset;
	dstbase += ivideo->video_offset;

	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, 0x0fff)
	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;
	}
	dstbase += ivideo->video_offset;
	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) || (!ivideo->engineok))
		return 0;

	CRITBEGIN
	sisfb_syncaccel(ivideo);
	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) || (!ivideo->engineok)) {
		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
#endif
	} else {
#ifdef CONFIG_FB_SIS_315
		CRITBEGIN
		SiS310SetupForSolidFill(ivideo, col, myrops[rect->rop]);
		SiS310SubsequentSolidFillRect(ivideo, rect->dx, rect->dy, width, height);
		CRITEND
#endif
	}

	sisfb_syncaccel(ivideo);
}

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) || (!ivideo->engineok)) {
		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
#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
#endif
	}

	sisfb_syncaccel(ivideo);
}

#endif

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)  /* -------------- 2.4 --------------- */

#include "sisfb_accel_2_4.h"

#endif /* KERNEL VERSION */
Commit	Line	Data
1da177e4	1	/*
544393fe TW	2	* SiS 300/540/630[S]/730[S],
	3	* SiS 315[E\|PRO]/550/[M]650/651/[M]661[F\|M]X/740/[M]741[GX]/330/[M]760[GX],
	4	* XGI V3XT/V5/V8, Z7
	5	* frame buffer driver for Linux kernels >= 2.4.14 and >=2.6.3
1da177e4 LT	6	*
	7	* 2D acceleration part
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License as published by
	11	* the Free Software Foundation; either version 2 of the named License,
	12	* or any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
	22	*
	23	* Based on the XFree86/X.org driver which is
544393fe	24	* Copyright (C) 2001-2005 by Thomas Winischhofer, Vienna, Austria
1da177e4 LT	25	*
	26	* Author: Thomas Winischhofer <thomas@winischhofer.net>
	27	* (see http://www.winischhofer.net/
	28	* for more information and updates)
	29	*/
	30
	31	#include <linux/config.h>
	32	#include <linux/version.h>
	33	#include <linux/module.h>
	34	#include <linux/kernel.h>
1da177e4	35	#include <linux/fb.h>
544393fe	36	#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
1da177e4	37	#include <linux/console.h>
544393fe	38	#endif
1da177e4	39	#include <linux/ioport.h>
1da177e4 LT	40	#include <linux/types.h>
	41
	42	#include <asm/io.h>
	43
	44	#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
	45	#include <video/fbcon.h>
	46	#include <video/fbcon-cfb8.h>
	47	#include <video/fbcon-cfb16.h>
	48	#include <video/fbcon-cfb24.h>
	49	#include <video/fbcon-cfb32.h>
	50	#endif
	51
	52	#include "sis.h"
	53	#include "sis_accel.h"
	54
	55	static const u8 sisALUConv[] =
	56	{
	57	0x00, /* dest = 0; 0, GXclear, 0 */
	58	0x88, /* dest &= src; DSa, GXand, 0x1 */
	59	0x44, /* dest = src & ~dest; SDna, GXandReverse, 0x2 */
	60	0xCC, /* dest = src; S, GXcopy, 0x3 */
	61	0x22, /* dest &= ~src; DSna, GXandInverted, 0x4 */
	62	0xAA, /* dest = dest; D, GXnoop, 0x5 */
	63	0x66, /* dest = ^src; DSx, GXxor, 0x6 */
	64	0xEE, /* dest \|= src; DSo, GXor, 0x7 */
	65	0x11, /* dest = ~src & ~dest; DSon, GXnor, 0x8 */
	66	0x99, /* dest ^= ~src ; DSxn, GXequiv, 0x9 */
	67	0x55, /* dest = ~dest; Dn, GXInvert, 0xA */
	68	0xDD, /* dest = src\|~dest ; SDno, GXorReverse, 0xB */
	69	0x33, /* dest = ~src; Sn, GXcopyInverted, 0xC */
	70	0xBB, /* dest \|= ~src; DSno, GXorInverted, 0xD */
	71	0x77, /* dest = ~src\|~dest; DSan, GXnand, 0xE */
	72	0xFF, /* dest = 0xFF; 1, GXset, 0xF */
	73	};
	74	/* same ROP but with Pattern as Source */
	75	static const u8 sisPatALUConv[] =
	76	{
	77	0x00, /* dest = 0; 0, GXclear, 0 */
	78	0xA0, /* dest &= src; DPa, GXand, 0x1 */
	79	0x50, /* dest = src & ~dest; PDna, GXandReverse, 0x2 */
	80	0xF0, /* dest = src; P, GXcopy, 0x3 */
	81	0x0A, /* dest &= ~src; DPna, GXandInverted, 0x4 */
	82	0xAA, /* dest = dest; D, GXnoop, 0x5 */
	83	0x5A, /* dest = ^src; DPx, GXxor, 0x6 */
	84	0xFA, /* dest \|= src; DPo, GXor, 0x7 */
	85	0x05, /* dest = ~src & ~dest; DPon, GXnor, 0x8 */
	86	0xA5, /* dest ^= ~src ; DPxn, GXequiv, 0x9 */
	87	0x55, /* dest = ~dest; Dn, GXInvert, 0xA */
	88	0xF5, /* dest = src\|~dest ; PDno, GXorReverse, 0xB */
	89	0x0F, /* dest = ~src; Pn, GXcopyInverted, 0xC */
	90	0xAF, /* dest \|= ~src; DPno, GXorInverted, 0xD */
	91	0x5F, /* dest = ~src\|~dest; DPan, GXnand, 0xE */
	92	0xFF, /* dest = 0xFF; 1, GXset, 0xF */
	93	};
	94
	95	#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,34)
	96	static const int myrops[] = {
	97	3, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3
	98	};
	99	#endif
	100
	101	/* 300 series ----------------------------------------------------- */
	102	#ifdef CONFIG_FB_SIS_300
	103	static void
104	SiS300Sync(struct sis_video_info *ivideo)
105	{
106	SiS300Idle
107	}
108
109	static void
110	SiS300SetupForScreenToScreenCopy(struct sis_video_info *ivideo, int xdir, int ydir,
111	int rop, int trans_color)
112	{
113	SiS300SetupDSTColorDepth(ivideo->DstColor);
114	SiS300SetupSRCPitch(ivideo->video_linelength)
115	SiS300SetupDSTRect(ivideo->video_linelength, 0xffff)
116
117	if(trans_color != -1) {
118	SiS300SetupROP(0x0A)
119	SiS300SetupSRCTrans(trans_color)
120	SiS300SetupCMDFlag(TRANSPARENT_BITBLT)
121	} else {
122	SiS300SetupROP(sisALUConv[rop])
123	}
124	if(xdir > 0) {
125	SiS300SetupCMDFlag(X_INC)
126	}
127	if(ydir > 0) {
128	SiS300SetupCMDFlag(Y_INC)
129	}
130	}
131
132	static void
133	SiS300SubsequentScreenToScreenCopy(struct sis_video_info *ivideo, int src_x,
134	int src_y, int dst_x, int dst_y, int width, int height)
135	{
136	u32 srcbase = 0, dstbase = 0;
137
138	if(src_y >= 2048) {
139	srcbase = ivideo->video_linelength * src_y;
140	src_y = 0;
141	}
142	if(dst_y >= 2048) {
143	dstbase = ivideo->video_linelength * dst_y;
144	dst_y = 0;
145	}
146
147	SiS300SetupSRCBase(srcbase);
148	SiS300SetupDSTBase(dstbase);
149
150	if(!(ivideo->CommandReg & X_INC)) {
151	src_x += width-1;
152	dst_x += width-1;
153	}
154	if(!(ivideo->CommandReg & Y_INC)) {
155	src_y += height-1;
156	dst_y += height-1;
157	}
158	SiS300SetupRect(width, height)
159	SiS300SetupSRCXY(src_x, src_y)
160	SiS300SetupDSTXY(dst_x, dst_y)
161	SiS300DoCMD
162	}
163
164	static void
165	SiS300SetupForSolidFill(struct sis_video_info *ivideo, u32 color, int rop)
166	{
167	SiS300SetupPATFG(color)
168	SiS300SetupDSTRect(ivideo->video_linelength, 0xffff)
169	SiS300SetupDSTColorDepth(ivideo->DstColor);
170	SiS300SetupROP(sisPatALUConv[rop])
171	SiS300SetupCMDFlag(PATFG)
172	}
173
174	static void
175	SiS300SubsequentSolidFillRect(struct sis_video_info *ivideo, int x, int y, int w, int h)
176	{
177	u32 dstbase = 0;
178
179	if(y >= 2048) {
180	dstbase = ivideo->video_linelength * y;
181	y = 0;
182	}
183	SiS300SetupDSTBase(dstbase)
184	SiS300SetupDSTXY(x,y)
185	SiS300SetupRect(w,h)
186	SiS300SetupCMDFlag(X_INC \| Y_INC \| BITBLT)
187	SiS300DoCMD
188	}
189	#endif
190
544393fe	191	/* 315/330/340 series ---------------------------------------------- */
1da177e4 LT	192
	193	#ifdef CONFIG_FB_SIS_315
	194	static void
	195	SiS310Sync(struct sis_video_info *ivideo)
	196	{
	197	SiS310Idle
	198	}
	199
	200	static void
	201	SiS310SetupForScreenToScreenCopy(struct sis_video_info *ivideo, int rop, int trans_color)
	202	{
	203	SiS310SetupDSTColorDepth(ivideo->DstColor);
	204	SiS310SetupSRCPitch(ivideo->video_linelength)
544393fe	205	SiS310SetupDSTRect(ivideo->video_linelength, 0x0fff)
1da177e4 LT	206	if(trans_color != -1) {
	207	SiS310SetupROP(0x0A)
	208	SiS310SetupSRCTrans(trans_color)
	209	SiS310SetupCMDFlag(TRANSPARENT_BITBLT)
	210	} else {
	211	SiS310SetupROP(sisALUConv[rop])
	212	/* Set command - not needed, both 0 */
	213	/* SiSSetupCMDFlag(BITBLT \| SRCVIDEO) */
	214	}
	215	SiS310SetupCMDFlag(ivideo->SiS310_AccelDepth)
544393fe	216	/* The chip is smart enough to know the direction */
1da177e4 LT	217	}
	218
	219	static void
	220	SiS310SubsequentScreenToScreenCopy(struct sis_video_info *ivideo, int src_x, int src_y,
	221	int dst_x, int dst_y, int width, int height)
	222	{
	223	u32 srcbase = 0, dstbase = 0;
	224	int mymin = min(src_y, dst_y);
	225	int mymax = max(src_y, dst_y);
544393fe	226
1da177e4	227	/* Although the chip knows the direction to use
544393fe	228	* if the source and destination areas overlap,
1da177e4 LT	229	* that logic fails if we fiddle with the bitmap
1da177e4 LT	230	* addresses. Therefore, we check if the source
544393fe TW	231	* and destination blitting areas overlap and
544393fe TW	232	* adapt the bitmap addresses synchronously
1da177e4	233	* if the coordinates exceed the valid range.
544393fe	234	* The the areas do not overlap, we do our
1da177e4 LT	235	* normal check.
1da177e4 LT	236	*/
544393fe TW	237	if((mymax - mymin) < height) {
	238	if((src_y >= 2048) \|\| (dst_y >= 2048)) {
	239	srcbase = ivideo->video_linelength * mymin;
	240	dstbase = ivideo->video_linelength * mymin;
	241	src_y -= mymin;
	242	dst_y -= mymin;
	243	}
1da177e4	244	} else {
544393fe TW	245	if(src_y >= 2048) {
	246	srcbase = ivideo->video_linelength * src_y;
	247	src_y = 0;
	248	}
	249	if(dst_y >= 2048) {
	250	dstbase = ivideo->video_linelength * dst_y;
	251	dst_y = 0;
	252	}
1da177e4 LT	253	}
1da177e4 LT	254
544393fe TW	255	srcbase += ivideo->video_offset;
	256	dstbase += ivideo->video_offset;
	257
1da177e4 LT	258	SiS310SetupSRCBase(srcbase);
	259	SiS310SetupDSTBase(dstbase);
	260	SiS310SetupRect(width, height)
	261	SiS310SetupSRCXY(src_x, src_y)
	262	SiS310SetupDSTXY(dst_x, dst_y)
	263	SiS310DoCMD
	264	}
	265
	266	static void
	267	SiS310SetupForSolidFill(struct sis_video_info *ivideo, u32 color, int rop)
	268	{
	269	SiS310SetupPATFG(color)
544393fe	270	SiS310SetupDSTRect(ivideo->video_linelength, 0x0fff)
1da177e4 LT	271	SiS310SetupDSTColorDepth(ivideo->DstColor);
	272	SiS310SetupROP(sisPatALUConv[rop])
	273	SiS310SetupCMDFlag(PATFG \| ivideo->SiS310_AccelDepth)
	274	}
	275
	276	static void
	277	SiS310SubsequentSolidFillRect(struct sis_video_info *ivideo, int x, int y, int w, int h)
	278	{
	279	u32 dstbase = 0;
	280
	281	if(y >= 2048) {
	282	dstbase = ivideo->video_linelength * y;
	283	y = 0;
	284	}
544393fe	285	dstbase += ivideo->video_offset;
1da177e4 LT	286	SiS310SetupDSTBase(dstbase)
	287	SiS310SetupDSTXY(x,y)
	288	SiS310SetupRect(w,h)
	289	SiS310SetupCMDFlag(BITBLT)
	290	SiS310DoCMD
	291	}
	292	#endif
	293
	294	/* --------------------------------------------------------------------- */
	295
	296	/* The exported routines */
	297
	298	int sisfb_initaccel(struct sis_video_info *ivideo)
	299	{
	300	#ifdef SISFB_USE_SPINLOCKS
544393fe	301	spin_lock_init(&ivideo->lockaccel);
1da177e4	302	#endif
544393fe	303	return 0;
1da177e4 LT	304	}
	305
	306	void sisfb_syncaccel(struct sis_video_info *ivideo)
	307	{
544393fe	308	if(ivideo->sisvga_engine == SIS_300_VGA) {
1da177e4	309	#ifdef CONFIG_FB_SIS_300
544393fe	310	SiS300Sync(ivideo);
1da177e4	311	#endif
544393fe	312	} else {
1da177e4	313	#ifdef CONFIG_FB_SIS_315
544393fe	314	SiS310Sync(ivideo);
1da177e4	315	#endif
544393fe	316	}
1da177e4 LT	317	}
	318
	319	#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0) /* --------------- 2.5 --------------- */
	320
	321	int fbcon_sis_sync(struct fb_info *info)
	322	{
544393fe TW	323	struct sis_video_info ivideo = (struct sis_video_info )info->par;
544393fe TW	324	CRITFLAGS
1da177e4	325
544393fe TW	326	if((!ivideo->accel) \|\| (!ivideo->engineok))
544393fe TW	327	return 0;
1da177e4	328
544393fe TW	329	CRITBEGIN
	330	sisfb_syncaccel(ivideo);
	331	CRITEND
	332
	333	return 0;
1da177e4 LT	334	}
	335
	336	void fbcon_sis_fillrect(struct fb_info info, const struct fb_fillrect rect)
	337	{
544393fe TW	338	struct sis_video_info ivideo = (struct sis_video_info )info->par;
	339	u32 col = 0;
	340	u32 vxres = info->var.xres_virtual;
	341	u32 vyres = info->var.yres_virtual;
	342	int width, height;
	343	CRITFLAGS
	344
	345	if(info->state != FBINFO_STATE_RUNNING)
	346	return;
	347
	348	if((!ivideo->accel) \|\| (!ivideo->engineok)) {
	349	cfb_fillrect(info, rect);
	350	return;
	351	}
	352
	353	if(!rect->width \|\| !rect->height \|\| rect->dx >= vxres \|\| rect->dy >= vyres)
	354	return;
	355
	356	/* Clipping */
	357	width = ((rect->dx + rect->width) > vxres) ? (vxres - rect->dx) : rect->width;
	358	height = ((rect->dy + rect->height) > vyres) ? (vyres - rect->dy) : rect->height;
	359
	360	switch(info->var.bits_per_pixel) {
1da177e4 LT	361	case 8: col = rect->color;
	362	break;
	363	case 16:
	364	case 32: col = ((u32 *)(info->pseudo_palette))[rect->color];
	365	break;
544393fe	366	}
1da177e4	367
544393fe	368	if(ivideo->sisvga_engine == SIS_300_VGA) {
1da177e4	369	#ifdef CONFIG_FB_SIS_300
544393fe TW	370	CRITBEGIN
	371	SiS300SetupForSolidFill(ivideo, col, myrops[rect->rop]);
	372	SiS300SubsequentSolidFillRect(ivideo, rect->dx, rect->dy, width, height);
	373	CRITEND
1da177e4	374	#endif
544393fe	375	} else {
1da177e4	376	#ifdef CONFIG_FB_SIS_315
544393fe TW	377	CRITBEGIN
	378	SiS310SetupForSolidFill(ivideo, col, myrops[rect->rop]);
	379	SiS310SubsequentSolidFillRect(ivideo, rect->dx, rect->dy, width, height);
	380	CRITEND
1da177e4	381	#endif
544393fe	382	}
1da177e4	383
544393fe	384	sisfb_syncaccel(ivideo);
1da177e4 LT	385	}
	386
	387	void fbcon_sis_copyarea(struct fb_info info, const struct fb_copyarea area)
	388	{
544393fe TW	389	struct sis_video_info ivideo = (struct sis_video_info )info->par;
	390	u32 vxres = info->var.xres_virtual;
	391	u32 vyres = info->var.yres_virtual;
	392	int width = area->width;
	393	int height = area->height;
1da177e4 LT	394	CRITFLAGS
1da177e4 LT	395
544393fe TW	396	if(info->state != FBINFO_STATE_RUNNING)
544393fe TW	397	return;
1da177e4	398
544393fe TW	399	if((!ivideo->accel) \|\| (!ivideo->engineok)) {
	400	cfb_copyarea(info, area);
	401	return;
1da177e4	402	}
1da177e4	403
544393fe TW	404	if(!width \|\| !height \|\|
	405	area->sx >= vxres \|\| area->sy >= vyres \|\|
	406	area->dx >= vxres \|\| area->dy >= vyres)
	407	return;
1da177e4	408
544393fe TW	409	/* Clipping */
	410	if((area->sx + width) > vxres) width = vxres - area->sx;
	411	if((area->dx + width) > vxres) width = vxres - area->dx;
	412	if((area->sy + height) > vyres) height = vyres - area->sy;
	413	if((area->dy + height) > vyres) height = vyres - area->dy;
1da177e4 LT	414
	415	if(ivideo->sisvga_engine == SIS_300_VGA) {
	416	#ifdef CONFIG_FB_SIS_300
544393fe TW	417	int xdir, ydir;
	418
	419	if(area->sx < area->dx) xdir = 0;
	420	else xdir = 1;
	421	if(area->sy < area->dy) ydir = 0;
	422	else ydir = 1;
	423
	424	CRITBEGIN
	425	SiS300SetupForScreenToScreenCopy(ivideo, xdir, ydir, 3, -1);
	426	SiS300SubsequentScreenToScreenCopy(ivideo, area->sx, area->sy,
	427	area->dx, area->dy, width, height);
	428	CRITEND
1da177e4 LT	429	#endif
	430	} else {
	431	#ifdef CONFIG_FB_SIS_315
544393fe TW	432	CRITBEGIN
	433	SiS310SetupForScreenToScreenCopy(ivideo, 3, -1);
	434	SiS310SubsequentScreenToScreenCopy(ivideo, area->sx, area->sy,
	435	area->dx, area->dy, width, height);
	436	CRITEND
1da177e4	437	#endif
1da177e4 LT	438	}
1da177e4 LT	439
544393fe	440	sisfb_syncaccel(ivideo);
1da177e4 LT	441	}
1da177e4 LT	442
1da177e4	443	#endif
1da177e4	444
544393fe	445	#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) /* -------------- 2.4 --------------- */
1da177e4	446
544393fe	447	#include "sisfb_accel_2_4.h"
1da177e4 LT	448
	449	#endif /* KERNEL VERSION */
	450
	451