411 lines
11 KiB
C
411 lines
11 KiB
C
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
||
|
|
/*
|
||
|
|
* 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
|
||
|
|
*
|
||
|
|
* 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/module.h>
|
||
|
|
#include <linux/kernel.h>
|
||
|
|
#include <linux/fb.h>
|
||
|
|
#include <linux/ioport.h>
|
||
|
|
#include <linux/types.h>
|
||
|
|
#include <asm/io.h>
|
||
|
|
|
||
|
|
#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 */
|
||
|
|
};
|
||
|
|
|
||
|
|
static const int myrops[] = {
|
||
|
|
3, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3
|
||
|
|
};
|
||
|
|
|
||
|
|
/* 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 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
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
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);
|
||
|
|
}
|