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/*
* Copyright 2001 Ani Joshi <ajoshi@unixbox.com>
*
* XFree86 4.x driver for S3 chipsets
*
*
* 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 Ani Joshi not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. Ani Joshi makes no representations
* about the suitability of this software for any purpose. It is provided
* "as-is" without express or implied warranty.
*
* ANI JOSHI DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL ANI JOSHI 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.
*
*
*/
/* $XFree86: $ */
#include "xf86.h"
#include "xf86_OSproc.h"
#include "xf86_ansic.h"
#include "compiler.h"
#include "s3.h"
#include "s3_reg.h"
static void S3SetCursorColors(ScrnInfoPtr pScrn, int bg, int fg)
{
S3Ptr pS3 = S3PTR(pScrn);
int vgaCRIndex = pS3->vgaCRIndex, vgaCRReg = pS3->vgaCRReg;
unsigned short packfg, packbg;
switch (pS3->s3Bpp) {
case 1:
/* XXX Trio series only */
outb(vgaCRIndex, 0x45);
inb(vgaCRReg);
outb(vgaCRIndex, 0x4a);
outb(vgaCRReg, fg);
outb(vgaCRReg, fg);
outb(vgaCRIndex, 0x45);
inb(vgaCRReg);
outb(vgaCRIndex, 0x4b);
outb(vgaCRReg, bg);
outb(vgaCRReg, bg);
break;
case 2:
/* XXX depth 16 */
packfg = ((fg & 0x00f80000) >> 19) | ((fg & 0x0000fc00) >> 5) |
((fg & 0x000000f8) << 8);
packbg = ((bg & 0x00f80000) >> 19) | ((bg & 0x0000fc00) >> 5) |
((bg & 0x000000f8) << 8);
outb(vgaCRIndex, 0x45);
inb(vgaCRReg);
outb(vgaCRIndex, 0x4a);
outb(vgaCRReg, packfg);
outb(vgaCRReg, packfg >> 8);
outb(vgaCRIndex, 0x45);
inb(vgaCRReg);
outb(vgaCRIndex, 0x4b);
outb(vgaCRReg, packbg);
outb(vgaCRReg, packbg >> 8);
break;
default:
outb(vgaCRIndex, 0x45);
inb(vgaCRReg);
outb(vgaCRIndex, 0x4a);
outb(vgaCRReg, (fg & 0x00ff0000) >> 16);
outb(vgaCRReg, (fg & 0x0000ff00) >> 8);
outb(vgaCRReg, (fg & 0x000000ff));
outb(vgaCRIndex, 0x45);
inb(vgaCRReg);
outb(vgaCRIndex, 0x4b);
outb(vgaCRReg, (bg & 0x00ff0000) >> 16);
outb(vgaCRReg, (bg & 0x0000ff00) >> 8);
outb(vgaCRReg, (bg & 0x000000ff));
break;
}
}
static void S3SetCursorPosition(ScrnInfoPtr pScrn, int x, int y)
{
S3Ptr pS3 = S3PTR(pScrn);
int vgaCRIndex = pS3->vgaCRIndex, vgaCRReg = pS3->vgaCRReg;
outb(vgaCRIndex, 0x39);
outb(vgaCRReg, 0xa5);
outb(vgaCRIndex, 0x46);
outb(vgaCRReg, x >> 8);
outb(vgaCRIndex, 0x47);
outb(vgaCRReg, x);
outb(vgaCRIndex, 0x49);
outb(vgaCRReg, y);
outb(vgaCRIndex, 0x48);
outb(vgaCRReg, y >> 8);
}
static void S3HideCursor(ScrnInfoPtr pScrn)
{
S3Ptr pS3 = S3PTR(pScrn);
int vgaCRIndex = pS3->vgaCRIndex, vgaCRReg = pS3->vgaCRReg;
unsigned char tmp;
outb(vgaCRIndex, 0x45);
tmp = inb(vgaCRReg);
outb(vgaCRReg, tmp & ~0x01);
}
static void S3ShowCursor(ScrnInfoPtr pScrn)
{
S3Ptr pS3 = S3PTR(pScrn);
int vgaCRIndex = pS3->vgaCRIndex, vgaCRReg = pS3->vgaCRReg;
unsigned char tmp;
outb(vgaCRIndex, 0x39);
outb(vgaCRReg, 0xa5);
outb(vgaCRIndex, 0x55);
tmp = inb(vgaCRReg);
outb(vgaCRReg, tmp | 0x10);
outb(vgaCRIndex, 0x4c);
outb(vgaCRReg, pS3->FBCursorOffset >> 8);
outb(vgaCRIndex, 0x4d);
outb(vgaCRReg, pS3->FBCursorOffset);
outb(vgaCRIndex, 0x45);
tmp = inb(vgaCRReg);
outb(vgaCRReg, tmp | 0x01);
}
static void S3LoadCursorImage(ScrnInfoPtr pScrn, unsigned char *image)
{
S3Ptr pS3 = S3PTR(pScrn);
int vgaCRIndex = pS3->vgaCRIndex, vgaCRReg = pS3->vgaCRReg;
unsigned char cr45;
outb(vgaCRIndex, 0x39);
outb(vgaCRReg, 0xa5);
WaitIdle();
VerticalRetraceWait();
outb(vgaCRIndex, 0x45);
cr45 = inb(vgaCRReg);
outb(vgaCRReg, cr45 & 0xfe);
outb(vgaCRIndex, 0x46);
outb(vgaCRReg, 0xff);
outb(vgaCRIndex, 0x47);
outb(vgaCRReg, 0x7f);
outb(vgaCRIndex, 0x49);
outb(vgaCRReg, 0xff);
outb(vgaCRIndex, 0x4e);
outb(vgaCRReg, 0x3f);
outb(vgaCRIndex, 0x4f);
outb(vgaCRReg, 0x3f);
outb(vgaCRIndex, 0x48);
outb(vgaCRReg, 0x7f);
memcpy(pS3->FBBase + (pS3->FBCursorOffset * 1024), image, 1024);
VerticalRetraceWait();
outb(vgaCRIndex, 0x45);
outb(vgaCRReg, cr45);
}
static Bool S3UseHWCursor(ScreenPtr pScreen, CursorPtr pCurs)
{
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
S3Ptr pS3 = S3PTR(pScrn);
return (pS3->hwCursor);
}
Bool S3_CursorInit(ScreenPtr pScreen)
{
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
S3Ptr pS3 = S3PTR(pScrn);
xf86CursorInfoPtr pCurs;
if (!(pCurs = pS3->pCurs = xf86CreateCursorInfoRec()))
return FALSE;
pCurs->MaxWidth = 64;
pCurs->MaxHeight = 64;
pCurs->Flags = HARDWARE_CURSOR_TRUECOLOR_AT_8BPP |
HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_1 |
HARDWARE_CURSOR_BIT_ORDER_MSBFIRST;
pCurs->SetCursorColors = S3SetCursorColors;
pCurs->SetCursorPosition = S3SetCursorPosition;
pCurs->LoadCursorImage = S3LoadCursorImage;
pCurs->HideCursor = S3HideCursor;
pCurs->ShowCursor = S3ShowCursor;
pCurs->UseHWCursor = S3UseHWCursor;
return xf86InitCursor(pScreen, pCurs);
}
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