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Adding driver for VIA CLE266 graphics chip. Currently it only accelerates

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This commit is contained in:
Ralph Thomas 2004-05-29 12:15:46 +00:00
parent 6af411b02e
commit ea1bbf8d83
8 changed files with 1437 additions and 1 deletions
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2
hw/kdrive/Makefile.am
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@ -1,5 +1,5 @@
if KDRIVEVESA
VESA_SUBDIRS = vesa mach64 mga nvidia r128 smi chips pm2
VESA_SUBDIRS = vesa mach64 mga nvidia r128 smi chips pm2 via
endif
if KDRIVEFBDEV

34
hw/kdrive/via/Makefile.am Normal file
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INCLUDES = \
@KDRIVE_INCS@ \
-I$(top_srcdir)/hw/kdrive/vesa \
@XSERVER_CFLAGS@
bin_PROGRAMS = Xvia
if TSLIB
TSLIB_FLAG = -lts
endif
noinst_LIBRARIES = libvia.a
libvia_a_SOURCES = \
via.c \
viadraw.c \
viadraw.h \
via.h \
via_regs.h
Xvia_SOURCES = \
viastub.c
VIA_LIBS = \
libvia.a \
$(top_builddir)/hw/kdrive/vesa/libvesa.a
Xvia_LDADD = \
$(VIA_LIBS) \
@KDRIVE_LIBS@ \
@XSERVER_LIBS@ \
$(TSLIB_FLAG)
Xvia_DEPENDENCIES = $(VIA_LIBS) @KDRIVE_LIBS@

436
hw/kdrive/via/via.c Normal file
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/*
* Copyright © 2004 Ralph Thomas
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Ralph Thomas not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Ralph Thomas makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* RALPH THOMAS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL RALPH THOMAS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/*
** VIA CLE266 driver
** Copyright 2004 (C) Ralph Thomas <ralpht@gmail.com>
**
** http://www.viatech.com.tw/
*/
#include "via.h"
#include "viadraw.h"
/*
** viaCardInit( KdCardInfo* card )
**
** Description:
** Create card specific structures, map chip registers and initialize the
** VESA driver. We make the VESA driver do boring stuff for us, like set
** up a framebuffer and program a mode.
**
** Parameters:
** card Information stucture for the card we want to bring up.
** It should be a VIA card.
**
** Return:
** TRUE Initialization went ok.
** FALSE Initialization failed.
*/
static Bool
viaCardInit( KdCardInfo* card ) {
ViaCardInfo* viac;
viac = (ViaCardInfo*) xalloc( sizeof( ViaCardInfo ) );
if( !viac ) return FALSE;
memset( viac, '\0', sizeof( ViaCardInfo ) );
viaMapReg( card, viac );
if( !vesaInitialize( card, &viac->vesa ) ) {
xfree( viac );
return FALSE;
}
card->driver = viac;
return TRUE;
}
/*
** Bool viaScreenInit( KdScreenInfo* screen )
**
** Description:
** Initialize a single screen, described by the screen parameter.
** This is where fairly low-level screen related things get setup,
** such as video mode and resolution. Currently that all gets
** handed off to the VESA driver.
**
** Parameters:
** screen Information structure for the screen to enable.
**
** Return:
** TRUE Screen was initialized successfully
** FALSE Screen initialization failed
*/
static Bool
viaScreenInit( KdScreenInfo* screen ) {
ViaCardInfo* viac = screen->card->driver;
ViaScreenInfo* vias;
vias = (ViaScreenInfo*) xalloc( sizeof( ViaScreenInfo ) );
if( !vias ) return FALSE;
memset( vias, '\0', sizeof( ViaScreenInfo ) );
if( !vesaScreenInitialize( screen, &vias->vesa ) ) {
xfree( vias );
return FALSE;
}
/*
** XXX: What does this do?
*/
if( !viac->mapBase )
screen->dumb = TRUE;
if( vias->vesa.mapping != VESA_LINEAR )
screen->dumb = TRUE;
screen->driver = vias;
return TRUE;
}
/*
** Bool viaInitScreen( ScreenPtr pScreen )
**
** Description:
** High level screen initialization occurs here. We could register XV
** adaptors, etc, here.
**
** Arguments:
** pScreen X screen information
**
** Return:
** TRUE Initialization was successful,
** FALSE Initialization failed.
*/
static Bool
viaInitScreen( ScreenPtr pScreen ) {
return vesaInitScreen( pScreen );
}
/*
** Bool viaFinishInitScreen
**
** Description:
** Finish up any high-level screen initialization. Per-Screen extension
** initialization can be done here.
**
** Arguments:
** pScreen X screen information
**
** Return:
** TRUE Initialization was successful.
** FALSE Initialization failed.
*/
static Bool
viaFinishInitScreen( ScreenPtr pScreen ) {
return vesaFinishInitScreen( pScreen );
}
/*
** Bool viaCreateResources( ScreenPtr pScreen )
**
** Description:
** Do any screen specific configuration.
**
** Arguments:
** pScreen X screen information
**
** Return:
** TRUE configuration was successful.
** FALSE configuration failed.
*/
static Bool
viaCreateResources( ScreenPtr pScreen ) {
return vesaCreateResources( pScreen );
}
/*
** void viaPreserve( KdCardInfo* card )
**
** Description:
** Save the current state of the chip, so that it can be restored by
** viaRestore at a later time.
**
** Arguments:
** card Information structure for the chip we want to preserve the
** state of.
**
** Return:
** None.
**
** See Also:
** viaRestore
*/
static void
viaPreserve( KdCardInfo* card ) {
vesaPreserve( card );
}
/*
** void viaRestore( KdCardInfo* card )
**
** Description:
** Restore the previous state of the chip, as saved by viaPreserve
** earlier.
**
** Arguments:
** card Information structure for the chip we want to restore the
** state of.
**
** Return:
** None.
**
** See Also:
** viaPreserve
*/
static void viaRestore( KdCardInfo* card ) {
ViaCardInfo* viac = card->driver;
viaResetMMIO( card, viac );
vesaRestore( card );
}
/*
** Bool viaEnable( ScreenPtr pScreen )
**
** Description:
** This is where we set the card up for drawing the specified screen, e.g.:
** set the mode and mmap the framebuffer.
**
** Arguments:
** pScreen X screen information
**
** Return:
** TRUE the screen was enabled
** FALSE the screen could not be enabled
*/
static Bool
viaEnable( ScreenPtr pScreen ) {
KdScreenPriv( pScreen );
ViaCardInfo* viac = pScreenPriv->card->driver;
if( !vesaEnable( pScreen ) ) return FALSE;
viaSetMMIO( pScreenPriv->card, viac );
if( !viac->mapBase ) {
ErrorF( "Could not map CLE266 graphics registers" );
return FALSE;
}
return TRUE;
}
/*
** void viaDisable( ScreenPtr pScreen )
**
** Description:
** Shut down drawing: save some state and unmap the framebuffer.
**
** Arguments:
** pScreen X screen information
**
** Return:
** None.
*/
static void
viaDisable( ScreenPtr pScreen ) {
KdScreenPriv( pScreen );
ViaCardInfo* viac = pScreenPriv->card->driver;
viaResetMMIO( pScreenPriv->card, viac );
vesaDisable( pScreen );
}
/*
** void viaScreenFini( KdScreenInfo* screen )
**
** Description:
** Release memory and resources allocated by viaScreenInit.
**
** Arguments:
** screen Information structure for the screen to release.
**
** Return:
** None.
**
** See Also:
** viaScreenInit
*/
static void
viaScreenFini( KdScreenInfo* screen ) {
ViaScreenInfo* vias = screen->driver;
vesaScreenFini( screen );
xfree( vias );
screen->driver = 0;
}
/*
** void viaCardFini( KdCardInfo* card )
**
** Description:
** Release memory and resources allocated by viaCardInit.
**
** Arguments:
** card Information structure for the chip to release.
**
** Return:
** None.
**
** See Also:
** viaCardInit
*/
static void
viaCardFini( KdCardInfo* card ) {
ViaCardInfo* viac = card->driver;
viaUnmapReg( card, viac );
vesaCardFini( card );
xfree( viac );
}
/*
** void viaSetMMIO( KdCardInfo* card, ViaCardInfo* viac )
**
** Description:
** Map the card's registers, if they're not already
** mapped.
**
** Arguments:
** card generic chip information
** viac VIA-driver specific chip information
**
** Return:
** None.
*/
void viaSetMMIO( KdCardInfo* card, ViaCardInfo* viac ) {
if( !viac->mapBase ) viaMapReg( card, viac );
}
/*
** void viaResetMMIO( KdCardInfo* card, ViaCardInfo* viac )
**
** Description:
** Unmap chip's registers.
**
** Arguments:
** card generic chip information
** viac VIA-driver specific chip information
**
** Return:
** None.
*/
void viaResetMMIO( KdCardInfo* card, ViaCardInfo* viac ) {
viaUnmapReg( card, viac );
}
/*
** Bool viaMapReg( KdCardInfo* card, ViaCardInfo* viac )
**
** Description:
** Map the chip's registers into our address space.
**
** Arguments:
** card the card information
** viac the VIA-driver specific card information
**
** Return:
** TRUE the registers were succesfully mapped
** FALSE the registers could not be mapped
*/
Bool
viaMapReg( KdCardInfo* card, ViaCardInfo* viac ) {
viac->mapBase = (VOL8*) KdMapDevice( VIA_REG_BASE( card ),
VIA_REG_SIZE( card ) );
if( !viac->mapBase ) {
ErrorF( "Couldn't allocate viac->mapBase\n" );
return FALSE;
}
KdSetMappedMode( VIA_REG_BASE( card ), VIA_REG_SIZE( card ),
KD_MAPPED_MODE_REGISTERS );
/*
** Enable extended IO space
*/
VGAOUT8( 0x3C4, 0x10 );
VGAOUT8( 0x3C5, 0x01 );
return TRUE;
}
/*
** void viaUnmapReg( KdCardInfo* card, ViaCardInfo* viac )
**
** Description:
** Unmap the the chip's registers.
**
** Arguments:
** card the card information
** viac the VIA-driver specific card information
**
** Return:
** None.
*/
void
viaUnmapReg( KdCardInfo* card, ViaCardInfo* viac ) {
if( !viac->mapBase ) return;
KdResetMappedMode( VIA_REG_BASE( card ), VIA_REG_SIZE( card ),
KD_MAPPED_MODE_REGISTERS );
KdUnmapDevice( (void*) viac->mapBase, VIA_REG_SIZE( card ) );
viac->mapBase = 0;
}
KdCardFuncs viaFuncs = {
viaCardInit, /* cardinit */
viaScreenInit, /* scrinit */
viaInitScreen, /* initScreen */
viaFinishInitScreen, /* finishInitScreen */
viaCreateResources, /* createRes */
viaPreserve, /* preserve */
viaEnable, /* enable */
vesaDPMS, /* dpms */
viaDisable, /* disable */
viaRestore, /* restore */
viaScreenFini, /* scrfini */
viaCardFini, /* cardfini */
0, /* initCursor */
0, /* enableCursor */
0, /* disableCursor */
0, /* finiCursor */
0, /* recolorCursor */
viaDrawInit, /* initAccel */
viaDrawEnable, /* enableAccel */
viaDrawSync, /* syncAccel */
viaDrawDisable, /* disableAccel */
viaDrawFini, /* finiAccel */
vesaGetColors, /* getColors */
vesaPutColors, /* putColors */
};

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hw/kdrive/via/via.h Normal file
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/*
* Copyright © 2004 Ralph Thomas
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Ralph Thomas not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Ralph Thomas makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* RALPH THOMAS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL RALPH THOMAS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/*
** VIA CLE266 driver
** Copyright 2004 (C) Ralph Thomas <ralpht@gmail.com>
**
** http://www.viatech.com.tw/
*/
#ifndef _VIA_H_
#define _VIA_H_
#include <vesa.h>
#include <klinux.h>
/*
** Define DebugF so that we can spot debug statements easily.
*/
#define DebugF ErrorF
typedef volatile CARD8 VOL8;
typedef volatile CARD16 VOL16;
typedef volatile CARD32 VOL32;
/*
** These macros provide access to data on the card. The VIA graphics chips
** are only available on IA-32 architecture, so PCI address space and CPU
** address space are always the same (hence accesses can be performed by
** dereferencing a pointer into PCI space).
*/
#define MMIO_OUT32( mmio, a, v ) (*(VOL32 *)((mmio) + (a)) = (v))
#define MMIO_IN32( mmio, a ) (*(VOL32 *)((mmio) + (a)))
#define MMIO_OUT16( mmio, a, v ) (*(VOL16 *)((mmio) + (a)) = (v))
#define MMIO_IN16( mmio, a ) (*(VOL16 *)((mmio) + (a)))
#define MMIO_OUT8( mmio, a, v ) (*(VOL8 *)((mmio) + (a)) = (v))
#define MMIO_IN8( mmio, a, v ) (*(VOL8 *)((mmio) + (a)))
/*
** VGA regisers are offset 0x8000 from the beginning of the mmap'd register
** space.
*/
#define VIA_MMIO_VGABASE 0x8000
/*
** The size of the register space, used when we mmap the registers. The
** argument "c" should be a KdCardInfo*.
*/
#define VIA_REG_SIZE(c) (0x9000)
/*
** The base of the register space, used when we mmap the registers. The
** argument "c" should be a KdCardInfo*.
*/
#define VIA_REG_BASE(c) ((c)->attr.address[1])
/*
** Access to the mmap'd VGA registers. The VGA registers are offset from the
** beginning of the 16M pci space by 0x8000. These macros get used just like
** outb/inb would be used to access VGA.
*/
#define VGAOUT32( addr, v ) MMIO_OUT32( viac->mapBase + VIA_MMIO_VGABASE, addr, v )
#define VGAIN32( addr ) MMIO_IN32( viac->mapBase + VIA_MMIO_VGABASE, addr )
#define VGAOUT16( addr, v ) MMIO_OUT16( viac->mapBase + VIA_MMIO_VGABASE, addr, v )
#define VGAIN16( addr ) MIIO_IN16( viac->mapBase + VIA_MMIO_VGABASE, addr )
#define VGAOUT8( addr, v ) MMIO_OUT8( viac->mapBase + VIA_MMIO_VGABASE, addr, v )
#define VGAIN8( addr ) MMIO_IN8( viac->mapBase + VIA_MMIO_VGABASE, addr )
/*
** Access to any of the registers on the chip.
*/
#define OUTREG32( addr, v ) MMIO_OUT32( viac->mapBase, addr, v )
#define INREG32( addr ) MMIO_IN32( viac->mapBase, addr )
#define OUTREG16( addr, v ) MMIO_OUT16( viac->mapBase, addr, v )
#define INREG16( addr ) MMIO_IN16( viac->mapBase, addr )
/*
** We keep all of our chip specific data in a ViaCardInfo.
*/
typedef struct _viaCardInfo {
VesaCardPrivRec vesa; /* card info for VESA driver */
VOL8* mapBase; /* mmap'd registers */
CARD32 savedCommand; /* command to issue to GE */
CARD32 savedFgColor; /* color to issue to GE */
} ViaCardInfo;
/*
** We keep all of our screen specific data in a ViaScreenInfo.
*/
typedef struct _viaScreenInfo {
VesaScreenPrivRec vesa;
} ViaScreenInfo;
/*
** These function prototypes are for support functions. More infomation on each
** function is available at the place the function is implemented, in via.c.
*/
Bool viaMapReg( KdCardInfo* card, ViaCardInfo* viac );
void viaUnmapReg( KdCardInfo* card, ViaCardInfo* viac );
void viaSetMMIO( KdCardInfo* card, ViaCardInfo* viac );
void viaResetMMIO( KdCardInfo* card, ViaCardInfo* viac );
/*
** The viaFuncs structure gets filled with the addresses of the functions
** that we use to talk to the graphics chip.
*/
extern KdCardFuncs viaFuncs;
#endif

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hw/kdrive/via/via_regs.h Normal file
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/*
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
/*************************************************************************
*
* File: via_regs.h
* Content: The defines of Via registers
*
************************************************************************/
#ifndef _VIA_REGS_H_
#define _VIA_REGS_H_
/* defines for VIA 2D registers */
#define VIA_REG_GECMD 0x000
#define VIA_REG_GEMODE 0x004
#define VIA_REG_GESTATUS 0x004 /* as same as VIA_REG_GEMODE */
#define VIA_REG_SRCPOS 0x008
#define VIA_REG_DSTPOS 0x00C
#define VIA_REG_LINE_K1K2 0x008
#define VIA_REG_LINE_XY 0x00C
#define VIA_REG_DIMENSION 0x010 /* width and height */
#define VIA_REG_PATADDR 0x014
#define VIA_REG_FGCOLOR 0x018
#define VIA_REG_DSTCOLORKEY 0x018 /* as same as VIA_REG_FG */
#define VIA_REG_BGCOLOR 0x01C
#define VIA_REG_SRCCOLORKEY 0x01C /* as same as VIA_REG_BG */
#define VIA_REG_CLIPTL 0x020 /* top and left of clipping */
#define VIA_REG_CLIPBR 0x024 /* bottom and right of clipping */
#define VIA_REG_OFFSET 0x028
#define VIA_REG_LINE_ERROR 0x028
#define VIA_REG_KEYCONTROL 0x02C /* color key control */
#define VIA_REG_SRCBASE 0x030
#define VIA_REG_DSTBASE 0x034
#define VIA_REG_PITCH 0x038 /* pitch of src and dst */
#define VIA_REG_MONOPAT0 0x03C
#define VIA_REG_MONOPAT1 0x040
#define VIA_REG_COLORPAT 0x100 /* from 0x100 to 0x1ff */
/* defines for VIA video registers */
#define VIA_REG_INTERRUPT 0x200
#define VIA_REG_CRTCSTART 0x214
/* defines for VIA HW cursor registers */
#define VIA_REG_CURSOR_MODE 0x2D0
#define VIA_REG_CURSOR_POS 0x2D4
#define VIA_REG_CURSOR_ORG 0x2D8
#define VIA_REG_CURSOR_BG 0x2DC
#define VIA_REG_CURSOR_FG 0x2E0
/* defines for VIA 3D registers */
#define VIA_REG_STATUS 0x400
#define VIA_REG_TRANSET 0x43C
#define VIA_REG_TRANSPACE 0x440
/* VIA_REG_STATUS(0x400): Engine Status */
#define VIA_CMD_RGTR_BUSY 0x00000080 /* Command Regulator is busy */
#define VIA_2D_ENG_BUSY 0x00000001 /* 2D Engine is busy */
#define VIA_3D_ENG_BUSY 0x00000002 /* 3D Engine is busy */
#define VIA_VR_QUEUE_BUSY 0x00020000 /* Virtual Queue is busy */
#define VIA_BUSY (VIA_CMD_RGTR_BUSY|VIA_2D_ENG_BUSY|VIA_3D_ENG_BUSY)
/* VIA_REG_GECMD(0x00): 2D Engine Command */
#define VIA_GEC_NOOP 0x00000000
#define VIA_GEC_BLT 0x00000001
#define VIA_GEC_LINE 0x00000005
#define VIA_GEC_SRC_XY 0x00000000
#define VIA_GEC_SRC_LINEAR 0x00000010
#define VIA_GEC_DST_XY 0x00000000
#define VIA_GEC_DST_LINRAT 0x00000020
#define VIA_GEC_SRC_FB 0x00000000
#define VIA_GEC_SRC_SYS 0x00000040
#define VIA_GEC_DST_FB 0x00000000
#define VIA_GEC_DST_SYS 0x00000080
#define VIA_GEC_SRC_MONO 0x00000100 /* source is mono */
#define VIA_GEC_PAT_MONO 0x00000200 /* pattern is mono */
#define VIA_GEC_MSRC_OPAQUE 0x00000000 /* mono src is opaque */
#define VIA_GEC_MSRC_TRANS 0x00000400 /* mono src is transparent */
#define VIA_GEC_PAT_FB 0x00000000 /* pattern is in frame buffer */
#define VIA_GEC_PAT_REG 0x00000800 /* pattern is from reg setting */
#define VIA_GEC_CLIP_DISABLE 0x00000000
#define VIA_GEC_CLIP_ENABLE 0x00001000
#define VIA_GEC_FIXCOLOR_PAT 0x00002000
#define VIA_GEC_INCX 0x00000000
#define VIA_GEC_DECY 0x00004000
#define VIA_GEC_INCY 0x00000000
#define VIA_GEC_DECX 0x00008000
#define VIA_GEC_MPAT_OPAQUE 0x00000000 /* mono pattern is opaque */
#define VIA_GEC_MPAT_TRANS 0x00010000 /* mono pattern is transparent */
#define VIA_GEC_MONO_UNPACK 0x00000000
#define VIA_GEC_MONO_PACK 0x00020000
#define VIA_GEC_MONO_DWORD 0x00000000
#define VIA_GEC_MONO_WORD 0x00040000
#define VIA_GEC_MONO_BYTE 0x00080000
#define VIA_GEC_LASTPIXEL_ON 0x00000000
#define VIA_GEC_LASTPIXEL_OFF 0x00100000
#define VIA_GEC_X_MAJOR 0x00000000
#define VIA_GEC_Y_MAJOR 0x00200000
#define VIA_GEC_QUICK_START 0x00800000
/* VIA_REG_GEMODE(0x04): GE mode */
#define VIA_GEM_8bpp 0x00000000
#define VIA_GEM_16bpp 0x00000100
#define VIA_GEM_32bpp 0x00000300
#define VIA_GEM_640 0x00000000 /* 640*480 */
#define VIA_GEM_800 0x00000400 /* 800*600 */
#define VIA_GEM_1024 0x00000800 /* 1024*768 */
#define VIA_GEM_1280 0x00000C00 /* 1280*1024 */
#define VIA_GEM_1600 0x00001000 /* 1600*1200 */
#define VIA_GEM_2048 0x00001400 /* 2048*1536 */
/* VIA_REG_PITCH(0x38): Pitch Setting */
#define VIA_PITCH_ENABLE 0x80000000
#endif /* _VIA_REGS_H_ */

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hw/kdrive/via/viadraw.c Normal file
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/*
* Copyright © 2004 Ralph Thomas
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Ralph Thomas not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Ralph Thomas makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* RALPH THOMAS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL RALPH THOMAS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/*
** VIA CLE266 driver
** Copyright 2004 (C) Ralph Thomas <ralpht@gmail.com>
**
** http://www.viatech.com.tw/
**
** This code is for accelerated drawing of solids and accelerated
** copies. Note that there is currently no software FIFO implemented,
** and no documentation on any hardware FIFO.
*/
#include "via.h"
#include "viadraw.h"
#include "via_regs.h"
#include <sched.h>
/*
** A global to contain card information between calls into this file.
** XXX: This is totally brain-damaged. Why don't I get the information
** I want in viaSolid/viaCopy/viaDoneXXX?
*/
static ViaCardInfo* card;
/*
** Translation table from GC raster operation values into ROP3 values
** that the VIA chip understands.
**
** viaPatternRop is used by viaPrepareSolid.
** viaCopyRop is used by viaPrepareCopy.
*/
CARD8 viaPatternRop[16] = {
/* GXclear */ 0x00, /* ROP_0 0 */
/* GXand */ 0xA0, /* ROP_DPa src AND dst */
/* GXandReverse */ 0x50, /* ROP_PDna src AND NOT dst */
/* GXcopy */ 0xF0, /* ROP_P src */
/* GXandInverted*/ 0x0A, /* ROP_DPna NOT src AND dst */
/* GXnoop */ 0xAA, /* ROP_D dst */
/* GXxor */ 0x5A, /* ROP_DPx src XOR dst */
/* GXor */ 0xFA, /* ROP_DPo src OR dst */
/* GXnor */ 0x05, /* ROP_DPon NOT src AND NOT dst */
/* GXequiv */ 0xA5, /* ROP_PDxn NOT src XOR dst */
/* GXinvert */ 0x55, /* ROP_Dn NOT dst */
/* GXorReverse */ 0xF5, /* ROP_PDno src OR NOT dst */
/* GXcopyInverted*/ 0x0F, /* ROP_Pn NOT src */
/* GXorInverted */ 0xAF, /* ROP_DPno NOT src OR dst */
/* GXnand */ 0x5F, /* ROP_DPan NOT src OR NOT dst */
/* GXset */ 0xFF, /* ROP_1 1 */
};
CARD8 viaCopyRop[16] = {
/* GXclear */ 0x00, /* ROP_0 0 */
/* GXand */ 0x88, /* ROP_DSa src AND dst */
/* GXandReverse */ 0x44, /* ROP_SDna src AND NOT dst */
/* GXcopy */ 0xCC, /* ROP_S src */
/* GXandInverted*/ 0x22, /* ROP_DSna NOT src AND dst */
/* GXnoop */ 0xAA, /* ROP_D dst */
/* GXxor */ 0x66, /* ROP_DSx src XOR dst */
/* GXor */ 0xEE, /* ROP_DSo src OR dst */
/* GXnor */ 0x11, /* ROP_DSon NOT src AND NOT dst */
/* GXequiv */ 0x99, /* ROP_DSxn NOT src XOR dst */
/* GXinvert */ 0x55, /* ROP_Dn NOT dst */
/* GXorReverse */ 0xDD, /* ROP_SDno src OR NOT dst */
/* GXcopyInverted*/ 0x33, /* ROP_Sn NOT src */
/* GXorInverted */ 0xBB, /* ROP_DSno NOT src OR dst */
/* GXnand */ 0x77, /* ROP_DSan NOT src OR NOT dst */
/* GXset */ 0xFF, /* ROP_1 1 */
};
/*
** void viaWaitIdle( ViaCardInfo* viac )
**
** Description:
** Block up the CPU while waiting for the last command sent to
** the chip to complete. As an experiment I'm going to try to
** yield my process to others instead of just tight looping.
**
** Arguments:
** viac VIA-driver specific chip information
**
** Return:
** None.
*/
void
viaWaitIdle( ViaCardInfo* viac ) {
while( INREG32( VIA_REG_STATUS ) & VIA_BUSY )
sched_yield();
}
/*
** Bool viaPrepareSolid( PixmapPtr pPixmap, int alu, Pixel planemask, Pixel fg )
**
** Description:
** Decide if the specified solid fill operation can be accelerated or not,
** and if the fill can be accelerated, prepare the hardware for doing it.
**
** Arguments:
** pPixmap Pixmap to draw solid into.
** alu Raster operation to draw using, these are the same
** values which get set by XSetFunction(3X). See the
** Xlib PM p. 140 for a list of raster operations as
** well as descriptions.
** planemask This is the GC plane mask. We only copy bits which
** match the plane mask.
** fg The foreground pixel of the GC, the pixel to draw in.
**
** Return:
** TRUE This operation can be accelerated, call viaSolid to actually
** have it drawn.
** FALSE This operation cannot be accelerated, fall back to software.
**
** See Also:
** viaSolid - the function which actually draws the solid.
*/
static Bool
viaPrepareSolid( PixmapPtr pPixmap, int alu, Pixel planeMask, Pixel fg ) {
ScreenPtr pScreen = pPixmap->drawable.pScreen;
KdScreenPriv( pScreen );
ViaCardInfo* viac = pScreenPriv->card->driver;
/*
** We don't accelerate when the plane mask is not everything.
*/
if( ~planeMask & FbFullMask( pPixmap->drawable.depth ) ) return FALSE;
/*
** Compose the command, then store the composed command and color
** in the viac structure so that when viaSolid gets called we can
** write them out.
*/
viac->savedCommand = VIA_GEC_BLT | VIA_GEC_FIXCOLOR_PAT |
(viaPatternRop[alu] << 24);
viac->savedFgColor = fg;
/*
** Store pointer to chip information, due to brain-damaged KAA.
*/
card = viac;
return TRUE;
}
/*
** void viaSolid( int x1, int y1, int x2, int y2 )
**
** Description:
** Perform a solid fill, using the data that was stored by viaPrepareSolid.
**
** Arguments:
** x1 x-coordinate of fill origin
** y1 y-coordinate of fill origin
** x2 x-coordinate of fill end point
** y2 y-coordinate of fill end point
**
** Return:
** None.
**
** See Also:
** viaPrepareSolid - the function that composes the GE command and saves
** the color for us.
*/
static void
viaSolid( int x1, int y1, int x2, int y2 ) {
ViaCardInfo* viac = card;
int w = x2 - x1; int h = y2 - y1;
if( !viac ) return;
if( !w || !h ) return;
/*
** Wait for the card to finish the current draw.
*/
viaWaitIdle( viac );
/*
** Do the draw.
*/
OUTREG32( VIA_REG_DSTPOS, ((y1 << 16) | x1) );
OUTREG32( VIA_REG_DIMENSION, (((h - 1) << 16) | (w - 1)) );
OUTREG32( VIA_REG_FGCOLOR, viac->savedFgColor );
OUTREG32( VIA_REG_GECMD, viac->savedCommand );
}
/*
** void viaDoneSolid
**
** Description:
** Finish up drawing of the solid.
**
** Arguments:
** None.
**
** Return:
** None.
*/
static void
viaDoneSolid() {
;
}
/*
** Bool viaPrepareCopy( PixmapPtr pSrcPixmap, PixmapPtr pDestPixmap, int dx,
** int dy, int alu, Pixel planeMask )
**
** Description:
** Set up the VIA chip for a BitBlt.
**
** Arguments:
** pSrcPixmap the source pixmap to copy from
** pDestPixmap the destination pixmap to copy to
** dx direction of copy in x
** dy direction of copy in y
** alu Raster operation to draw using, these are the same
** values which get set by XSetFunction(3X). See the
** Xlib PM p. 140 for a list of raster operations as
** well as descriptions.
** planeMask This is the GC plane mask. We only copy bits which
** match the plane mask.
**
** Return:
** TRUE the requested copy operation can be accelerated using hardware,
** call viaCopy next.
** FALSE the requested copy operation cannot be accelerated using
** hardware - fallback to software.
**
** See Also:
** viaCopy - the function which does the actual copy.
*/
static Bool
viaPrepareCopy( PixmapPtr pSrcPixmap, PixmapPtr pDestPixmap, int dx, int dy,
int alu, Pixel planeMask ) {
ScreenPtr pScreen = pDestPixmap->drawable.pScreen;
KdScreenPriv( pScreen );
ViaCardInfo* viac = pScreenPriv->card->driver;
/*
** Don't accelerate when the plane mask is set.
*/
if( ~planeMask & FbFullMask( pDestPixmap->drawable.depth ) ) return FALSE;
viac->savedCommand = VIA_GEC_BLT | (viaCopyRop[alu] << 24);
if( dx < 0 ) viac->savedCommand |= VIA_GEC_DECX;
if( dy < 0 ) viac->savedCommand |= VIA_GEC_DECY;
/*
** Store pointer to chip structure, due to brain-damaged KAA.
*/
card = viac;
return TRUE;
}
/*
** void viaCopy( int srcX, int srcY, int dstX, int dstY, int w, int h )
**
** Description:
** Perform a BitBlt from one screen area to another.
**
** Arguments:
** srcX source x-coordinate
** srcY source y-coordinate
** dstX destination x-coordinate
** dstY destination y-coordinate
** w width of area to copy (pixels)
** h height of area to copy (pixels)
**
** Return:
** None.
**
** See Also:
** viaPrepareCopy - the function which sets up for the copy.
*/
static void
viaCopy( int srcX, int srcY, int dstX, int dstY, int w, int h ) {
ViaCardInfo* viac = card;
if( !viac ) return;
if( !w | !h ) return;
/*
** XXX: Check these two "if"s out.
*/
if( viac->savedCommand & VIA_GEC_DECX ) {
srcX += ( w - 1 );
dstX += ( w - 1 );
}
if( viac->savedCommand & VIA_GEC_DECY ) {
srcY += ( h - 1 );
dstY += ( h - 1 );
}
OUTREG32( VIA_REG_SRCPOS, ((srcY << 16) | srcX) );
OUTREG32( VIA_REG_DSTPOS, ((dstY << 16) | dstX) );
OUTREG32( VIA_REG_DIMENSION, (((h - 1) << 16) | (w - 1)) );
OUTREG32( VIA_REG_GECMD, viac->savedCommand );
}
/*
** void viaDoneCopy()
**
** Description:
** Finish up the copy.
**
** Arguments:
** None.
**
** Return:
** None.
*/
static void
viaDoneCopy() {
;
}
/*
** viaKaa structure
**
** Description:
** Structure to contain function pointers to accelerated KAA operations
** in this driver.
*/
KaaScreenInfoRec viaKaa = {
viaPrepareSolid,
viaSolid,
viaDoneSolid,
viaPrepareCopy,
viaCopy,
viaDoneCopy,
};
/*
** Bool viaDrawInit( ScreenPtr pScreen )
**
** Description:
** Initialize the 2D acceleration hardware and register the KAA
** acceleration layer with the VIA acceleration functions (above).
**
** Arguments:
** pScreen Pointer to screen structure for the screen we're
** enabling acceleration on.
**
** Return:
** TRUE initialization and setup of KAA acceleration was successful.
** FALSE initialization and setup of KAA acceleration failed.
*/
Bool
viaDrawInit( ScreenPtr pScreen ) {
KdScreenPriv( pScreen );
ViaCardInfo* viac = pScreenPriv->card->driver;
CARD32 geMode = 0;
if( !viac ) return FALSE;
DebugF( "viac->mapBase = 0x%x\n", viac->mapBase );
/*
** We reset the 2D engine to a known state by setting all of it's
** registers to zero.
*/
OUTREG32( VIA_REG_GEMODE, 0x0 );
OUTREG32( VIA_REG_SRCPOS, 0x0 );
OUTREG32( VIA_REG_DSTPOS, 0x0 );
OUTREG32( VIA_REG_DIMENSION, 0x0 );
OUTREG32( VIA_REG_PATADDR, 0x0 );
OUTREG32( VIA_REG_FGCOLOR, 0x0 );
OUTREG32( VIA_REG_BGCOLOR, 0x0 );
OUTREG32( VIA_REG_CLIPTL, 0x0 );
OUTREG32( VIA_REG_CLIPBR, 0x0 );
OUTREG32( VIA_REG_OFFSET, 0x0 );
OUTREG32( VIA_REG_KEYCONTROL, 0x0 );
OUTREG32( VIA_REG_SRCBASE, 0x0 );
OUTREG32( VIA_REG_DSTBASE, 0x0 );
OUTREG32( VIA_REG_PITCH, 0x0 );
OUTREG32( VIA_REG_MONOPAT0, 0x0 );
OUTREG32( VIA_REG_MONOPAT1, 0x0 );
/*
** Set the GE mode up.
** XXX: What happens in 24bpp mode?
*/
switch( pScreenPriv->screen->fb[0].bitsPerPixel ) {
case 16:
geMode = VIA_GEM_16bpp;
break;
case 32:
geMode = VIA_GEM_32bpp;
break;
default:
geMode = VIA_GEM_8bpp;
break;
}
OUTREG32( VIA_REG_GEMODE, geMode );
/*
** Set the source and destination base addresses, and set pitch.
*/
OUTREG32( VIA_REG_SRCBASE, 0x0 );
OUTREG32( VIA_REG_DSTBASE, 0x0 );
OUTREG32( VIA_REG_PITCH, VIA_PITCH_ENABLE |
((pScreen->width * pScreenPriv->screen->fb[0].bitsPerPixel >> 3) >> 3) |
(((pScreen->width * pScreenPriv->screen->fb[0].bitsPerPixel >> 3) >> 3) << 16));
DebugF( "Initialized 2D engine!\n" );
return kaaDrawInit( pScreen, &viaKaa );
}
/*
** void viaDrawEnable( ScreenPtr pScreen )
**
** Description:
** Enable accelerated drawing on the specified screen.
**
** Arguments:
** pScreen Pointer to screen structure for the screen we're
** enabling acceleration on.
**
** Return:
** None.
*/
void
viaDrawEnable( ScreenPtr pScreen ) {
KdMarkSync( pScreen );
}
/*
** void viaDrawDisable( ScreenPtr pScreen )
**
** Description:
** Disable accelerated drawing to the specified screen.
**
** Arguments:
** pScreen Pointer to screen structure for the screen we're
** disabling acceleration on.
**
** Return:
** None
*/
void
viaDrawDisable( ScreenPtr pScreen ) {
}
/*
** void viaDrawFini( ScreenPtr pScreen )
**
** Description:
** Shutdown accelerated drawing and free associated strucures and
** resources.
**
** Arguments:
** pScreen Pointer to screen structure for the screen we're
** disabling acceleration on.
**
** Return:
** None.
*/
void
viaDrawFini( ScreenPtr pScreen ) {
}
/*
** void viaDrawSync( ScreenPtr pScreen )
**
** Description:
** Block until the graphics chip has finished all outstanding drawing
** operations and the framebuffer contents is static.
**
** Arguments:
** pScreen Pointer to screen strucutre for the screen we're
** waiting for drawing to end on.
**
** Return:
** None.
*/
void
viaDrawSync( ScreenPtr pScreen ) {
KdScreenPriv( pScreen );
ViaCardInfo* viac = pScreenPriv->card->driver;
viaWaitIdle( viac );
}

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/*
* Copyright © 2004 Ralph Thomas
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Ralph Thomas not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Ralph Thomas makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* RALPH THOMAS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL RALPH THOMAS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/*
** VIA CLE266 driver
** Copyright 2004 (C) Ralph Thomas <ralpht@gmail.com>
**
** http://www.viatech.com.tw/
**
** This header has some function prototypes for the hardware
** accelerated drawing code in viadraw.c.
*/
#ifndef _VIA_DRAW_H_
#define _VIA_DRAW_H_
/*
** More information on these functions is in viadraw.c.
*/
void viaWaitIdle( ViaCardInfo* card );
Bool viaDrawInit( ScreenPtr pScreen );
void viaDrawEnable( ScreenPtr pScreen );
void viaDrawDisable( ScreenPtr pScreen );
void viaDrawFini( ScreenPtr pScreen );
void viaDrawSync( ScreenPtr pScreen );
#endif

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/*
* Copyright © 2004 Ralph Thomas
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Ralph Thomas not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Ralph Thomas makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* RALPH THOMAS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL RALPH THOMAS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/*
** VIA CLE266 driver
** Copyright 2004 (C) Ralph Thomas <ralpht@gmail.com>
**
** http://www.viatech.com.tw/
**
** This is the stub code which links the VIA drawing code into the kdrive
** framework.
*/
#include "via.h"
#include <klinux.h>
/*
** void InitCard( char* name )
**
** Description:
** Initialize the graphics chip. We find the chip on the PCI bus,
** register the functions to access the chip.
**
** Arguments:
** name XXX: unknown.
**
** Return:
** None.
*/
void
InitCard( char* name ) {
KdCardAttr attr;
if( LinuxFindPci( 0x1106, 0x3122, 0, &attr ) )
KdCardInfoAdd( &viaFuncs, &attr, 0 );
}
/*
** void InitOutput( ScreenInfo* pScreenInfo, int argc, char** argv )
**
** Description:
** Initialize I/O, or something. XXX: Or what?
**
** Arguments:
** pScreenInfo XXX
** argc command line argument count
** argv command line arguments
**
** Return:
** None.
*/
void
InitOutput( ScreenInfo* pScreenInfo, int argc, char** argv ) {
KdInitOutput( pScreenInfo, argc, argv );
}
/*
** void InitInput( int argc, char** argv )
**
** Description:
** Initialize keyboard and mouse input.
**
** Arguments:
** argc command line argument count
** argv command line arguments
**
** Return:
** None.
*/
void
InitInput( int argc, char** argv ) {
KdInitInput( &LinuxMouseFuncs, &LinuxKeyboardFuncs );
}
/*
** void ddxUseMsg()
**
** Description:
** Print the usage message for Xvia.
**
** Arguments:
** None.
**
** Return:
** None.
*/
void
ddxUseMsg() {
KdUseMsg();
vesaUseMsg();
}
/*
** int ddxProcessArgument( int argc, char** argv, int i )
**
** Description:
** Process a single command line argument.
**
** Arguments:
** argc command line argument count
** argv command line arguments
** i number of argument to process
**
** Return:
** some values.
*/
int
ddxProcessArgument( int argc, char** argv, int i ) {
int ret;
if( !( ret = vesaProcessArgument( argc, argv, i ) ))
ret = KdProcessArgument( argc, argv, i );
return ret;
}