static void
TridentSync(ScrnInfoPtr pScrn)
{
TRIDENTPtr pTrident = TRIDENTPTR(pScrn);
int count = 0, timeout = 0;
int busy;
TGUI_OPERMODE(pTrident->EngineOperation);
for (;;) {
BLTBUSY(busy);
if (busy != GE_BUSY) {
return;
}
count++;
if (count == 10000000) {
ErrorF("Trident: BitBLT engine time-out.\n");
count = 9990000;
timeout++;
if (timeout == 8) {
/* Reset BitBLT Engine */
TGUI_STATUS(0x00);
return;
}
}
}
}
static void
TridentInitializeAccelerator(ScrnInfoPtr pScrn)
{
TRIDENTPtr pTrident = TRIDENTPTR(pScrn);
/* This forces updating the clipper */
pTrident->Clipping = TRUE;
CHECKCLIPPING;
if ( (pTrident->Chipset == PROVIDIA9682) ||
(pTrident->Chipset == CYBER9385) ||
(pTrident->Chipset == CYBER9382) )
pTrident->EngineOperation |= 0x100; /* Disable Clipping */
TGUI_OPERMODE(pTrident->EngineOperation);
pTrident->PatternLocation = pScrn->displayWidth*pScrn->bitsPerPixel/8;
}
