/*
* Also suited for VT1622A, VT1623, VT1625.
*/
static void
VT1622ModeCrtc(xf86CrtcPtr crtc, DisplayModePtr mode)
{
ScrnInfoPtr pScrn = crtc->scrn;
vgaHWPtr hwp = VGAHWPTR(pScrn);
VIAPtr pVia = VIAPTR(pScrn);
VIABIOSInfoPtr pBIOSInfo = pVia->pBIOSInfo;
struct VT162XTableRec Table;
DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO, "VT1622ModeCrtc\n"));
if (pBIOSInfo->TVEncoder == VIA_VT1622)
Table = VT1622Table[VT1622ModeIndex(pScrn, mode)];
else if (pBIOSInfo->TVEncoder == VIA_VT1625)
Table = VT1625Table[VT1622ModeIndex(pScrn, mode)];
else /* VT1622A/VT1623 */
Table = VT1623Table[VT1622ModeIndex(pScrn, mode)];
hwp->writeCrtc(hwp, 0x6A, 0x00);
hwp->writeCrtc(hwp, 0x6B, 0x00);
hwp->writeCrtc(hwp, 0x6C, 0x00);
if (pVia->IsSecondary) {
hwp->writeCrtc(hwp, 0x6C, Table.SecondaryCR6C);
ViaCrtcMask(hwp, 0x6A, 0x80, 0x80);
ViaCrtcMask(hwp, 0x6C, 0x80, 0x80);
/* CLE266Ax use 2x XCLK. */
if ((pVia->Chipset == VIA_CLE266) && CLE266_REV_IS_AX(pVia->ChipRev)) {
ViaCrtcMask(hwp, 0x6B, 0x20, 0x20);
/* Fix TV clock polarity for CLE266A2. */
if (pVia->ChipRev == 0x02)
ViaCrtcMask(hwp, 0x6C, 0x1C, 0x1C);
}
/* Disable LCD scaling. */
if (!pVia->SAMM || pVia->FirstInit)
hwp->writeCrtc(hwp, 0x79, 0x00);
} else {
if ((pVia->Chipset == VIA_CLE266) && CLE266_REV_IS_AX(pVia->ChipRev)) {
ViaCrtcMask(hwp, 0x6B, 0x80, 0x80);
/* Fix TV clock polarity for CLE266A2. */
if (pVia->ChipRev == 0x02)
hwp->writeCrtc(hwp, 0x6C, Table.PrimaryCR6C);
}
}
pBIOSInfo->ClockExternal = TRUE;
ViaCrtcMask(hwp, 0x6A, 0x40, 0x40);
ViaSetTVClockSource(crtc);
}
/*
* Fancy little routine stolen from fb
* We don't do anything but warn really.
*/
void
ViaDoubleCheckCLE266Revision(ScrnInfoPtr pScrn)
{
vgaHWPtr hwp = VGAHWPTR(pScrn);
VIAPtr pVia = VIAPTR(pScrn);
/* Crtc 0x4F is only defined in CLE266Cx */
CARD8 tmp = hwp->readCrtc(hwp, 0x4F);
hwp->writeCrtc(hwp, 0x4F, 0x55);
if (hwp->readCrtc(hwp, 0x4F) == 0x55) {
if (CLE266_REV_IS_AX(pVia->ChipRev))
xf86DrvMsg(pScrn->scrnIndex, X_WARNING, "CLE266 Revision seems"
" to be Cx, yet %d was detected previously.\n", pVia->ChipRev);
} else {
if (CLE266_REV_IS_CX(pVia->ChipRev))
xf86DrvMsg(pScrn->scrnIndex, X_WARNING, "CLE266 Revision seems"
" to be Ax, yet %d was detected previously.\n", pVia->ChipRev);
}
hwp->writeCrtc(hwp, 0x4F, tmp);
}
