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/*
* Copyright 1997 through 2004 by Marc Aurele La France (TSI @ UQV), tsi@xfree86.org
*
* 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 Marc Aurele La France not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. Marc Aurele La France makes no representations
* about the suitability of this software for any purpose. It is provided
* "as-is" without express or implied warranty.
*
* MARC AURELE LA FRANCE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
* EVENT SHALL MARC AURELE LA FRANCE 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "ati.h"
#include "atichip.h"
#include "atistruct.h"
#include "ativga.h"
#include "ativgaio.h"
#ifndef AVOID_CPIO
/*
* ATIVGAPreInit --
*
* This function is called to set up VGA-related data that is common to all
* video modes generated by the driver.
*/
void
ATIVGAPreInit
(
ATIPtr pATI,
ATIHWPtr pATIHW
)
{
/* Initialise sequencer register values */
pATIHW->seq[0] = 0x03U;
pATIHW->seq[2] = 0x0FU;
pATIHW->seq[4] = 0x0AU;
/* Initialise CRTC register values */
if (((pATI->Chip >= ATI_CHIP_264CT)))
pATIHW->crt[19] = pATI->displayWidth >> 3;
else
pATIHW->crt[19] = pATI->displayWidth >> 4;
pATIHW->crt[23] = 0xE3U;
pATIHW->crt[24] = 0xFFU;
/* Initialise attribute controller register values */
{
for (int Index = 0; Index < 16; Index++)
pATIHW->attr[Index] = Index;
pATIHW->attr[16] = 0x01U;
pATIHW->attr[17] = 0xFFU;
}
pATIHW->attr[18] = 0x0FU;
/* Initialise graphics controller register values */
if (pATI->Chip >= ATI_CHIP_264CT)
pATIHW->gra[5] = 0x40U;
if (pATI->Chip >= ATI_CHIP_264VT)
pATIHW->gra[6] = 0x01U; /* 128kB aperture */
else
pATIHW->gra[6] = 0x05U; /* 64kB aperture */
pATIHW->gra[7] = 0x0FU;
pATIHW->gra[8] = 0xFFU;
}
/*
* ATIVGASave --
*
* This function is called to save the VGA portion of the current video state.
*/
void
ATIVGASave
(
ATIPtr pATI,
ATIHWPtr pATIHW
)
{
int Index;
/* Save miscellaneous output register */
pATIHW->genmo = inb(R_GENMO);
ATISetVGAIOBase(pATI, pATIHW->genmo);
/* Save sequencer registers */
for (Index = 0; Index < NumberOf(pATIHW->seq); Index++)
pATIHW->seq[Index] = GetReg(SEQX, Index);
/* Save CRTC registers */
for (Index = 0; Index < NumberOf(pATIHW->crt); Index++)
pATIHW->crt[Index] = GetReg(CRTX(pATI->CPIO_VGABase), Index);
/* Save attribute controller registers */
for (Index = 0; Index < NumberOf(pATIHW->attr); Index++)
{
(void)inb(GENS1(pATI->CPIO_VGABase)); /* Reset flip-flop */
pATIHW->attr[Index] = GetReg(ATTRX, Index);
}
/* Save graphics controller registers */
for (Index = 0; Index < NumberOf(pATIHW->gra); Index++)
pATIHW->gra[Index] = GetReg(GRAX, Index);
}
/*
* ATIVGASet --
*
* This function is called to load the VGA portion of a video state.
*/
void
ATIVGASet
(
ATIPtr pATI,
ATIHWPtr pATIHW
)
{
int Index;
/* Set VGA I/O base */
ATISetVGAIOBase(pATI, pATIHW->genmo);
/* Load miscellaneous output register */
outb(GENMO, pATIHW->genmo);
/* Load sequencer in reverse index order; this also ends its reset */
for (Index = NumberOf(pATIHW->seq); --Index >= 0; )
PutReg(SEQX, Index, pATIHW->seq[Index]);
/* Load CRTC registers */
for (Index = 0; Index < NumberOf(pATIHW->crt); Index++)
PutReg(CRTX(pATI->CPIO_VGABase), Index, pATIHW->crt[Index]);
/* Load attribute controller registers */
for (Index = 0; Index < NumberOf(pATIHW->attr); Index++)
{
(void)inb(GENS1(pATI->CPIO_VGABase)); /* Reset flip-flop & delay */
outb(ATTRX, Index);
outb(ATTRX, pATIHW->attr[Index]);
}
/* Load graphics controller registers */
for (Index = 0; Index < NumberOf(pATIHW->gra); Index++)
PutReg(GRAX, Index, pATIHW->gra[Index]);
}
/*
* ATIVGASaveScreen --
*
* This function blanks or unblanks a VGA screen.
*/
void
ATIVGASaveScreen
(
ATIPtr pATI,
int Mode
)
{
(void)inb(GENS1(pATI->CPIO_VGABase)); /* Reset flip-flop */
switch (Mode)
{
case SCREEN_SAVER_OFF:
case SCREEN_SAVER_FORCER:
outb(ATTRX, 0x20U); /* Turn PAS on */
break;
case SCREEN_SAVER_ON:
case SCREEN_SAVER_CYCLE:
outb(ATTRX, 0x00U); /* Turn PAS off */
break;
default:
break;
}
}
#endif /* AVOID_CPIO */
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