radeon_probe.c

ati driver

    { PCI_CHIP_R300_AF, PCI_CHIP_R300_AF, RES_SHARED_VGA },
    { PCI_CHIP_R300_AG, PCI_CHIP_R300_AG, RES_SHARED_VGA },
    { PCI_CHIP_R300_ND, PCI_CHIP_R300_ND, RES_SHARED_VGA },
    { PCI_CHIP_R300_NE, PCI_CHIP_R300_NE, RES_SHARED_VGA },
    { PCI_CHIP_R300_NF, PCI_CHIP_R300_NF, RES_SHARED_VGA },
    { PCI_CHIP_R300_NG, PCI_CHIP_R300_NG, RES_SHARED_VGA },
    { PCI_CHIP_RV350_AP, PCI_CHIP_RV350_AP, RES_SHARED_VGA },
    { PCI_CHIP_RV350_AQ, PCI_CHIP_RV350_AQ, RES_SHARED_VGA },
    { PCI_CHIP_RV360_AR, PCI_CHIP_RV360_AR, RES_SHARED_VGA },
    { PCI_CHIP_RV350_AS, PCI_CHIP_RV350_AS, RES_SHARED_VGA },
    { PCI_CHIP_RV350_AT, PCI_CHIP_RV350_AT, RES_SHARED_VGA },
    { PCI_CHIP_RV350_AV, PCI_CHIP_RV350_AV, RES_SHARED_VGA },
    { PCI_CHIP_RV350_NP, PCI_CHIP_RV350_NP, RES_SHARED_VGA },
    { PCI_CHIP_RV350_NQ, PCI_CHIP_RV350_NQ, RES_SHARED_VGA },
    { PCI_CHIP_RV350_NR, PCI_CHIP_RV350_NR, RES_SHARED_VGA },
    { PCI_CHIP_RV350_NS, PCI_CHIP_RV350_NS, RES_SHARED_VGA },
    { PCI_CHIP_RV350_NT, PCI_CHIP_RV350_NT, RES_SHARED_VGA },
    { PCI_CHIP_RV350_NV, PCI_CHIP_RV350_NV, RES_SHARED_VGA },
    { PCI_CHIP_R350_AH, PCI_CHIP_R350_AH, RES_SHARED_VGA },
    { PCI_CHIP_R350_AI, PCI_CHIP_R350_AI, RES_SHARED_VGA },
    { PCI_CHIP_R350_AJ, PCI_CHIP_R350_AJ, RES_SHARED_VGA },
    { PCI_CHIP_R350_AK, PCI_CHIP_R350_AK, RES_SHARED_VGA },
    { PCI_CHIP_R350_NH, PCI_CHIP_R350_NH, RES_SHARED_VGA },
    { PCI_CHIP_R350_NI, PCI_CHIP_R350_NI, RES_SHARED_VGA },
    { PCI_CHIP_R350_NK, PCI_CHIP_R350_NK, RES_SHARED_VGA },
    { PCI_CHIP_R360_NJ, PCI_CHIP_R360_NJ, RES_SHARED_VGA },
    { -1,                 -1,                 RES_UNDEFINED }
};

int gRADEONEntityIndex = -1;

/* Return the options for supported chipset 'n'; NULL otherwise */
const OptionInfoRec *
RADEONAvailableOptions(int chipid, int busid)
{
    int  i;

    /*
     * Return options defined in the radeon submodule which will have been
     * loaded by this point.
     */
    if ((chipid >> 16) == PCI_VENDOR_ATI)
	chipid -= PCI_VENDOR_ATI << 16;
    for (i = 0; RADEONPciChipsets[i].PCIid > 0; i++) {
	if (chipid == RADEONPciChipsets[i].PCIid)
	    return RADEONOptions;
    }
    return NULL;
}

/* Return the string name for supported chipset 'n'; NULL otherwise. */
void
RADEONIdentify(int flags)
{
    xf86PrintChipsets(RADEON_NAME,
		      "Driver for ATI Radeon chipsets",
		      RADEONChipsets);
}

/* Return TRUE if chipset is present; FALSE otherwise. */
Bool
RADEONProbe(DriverPtr drv, int flags)
{
    int      numUsed;
    int      numDevSections, nATIGDev, nRadeonGDev;
    int     *usedChips;
    GDevPtr *devSections, *ATIGDevs, *RadeonGDevs;
    Bool     foundScreen = FALSE;
    int      i;

    if (!xf86GetPciVideoInfo()) return FALSE;

    /* Collect unclaimed device sections for both driver names */
    nATIGDev    = xf86MatchDevice(ATI_NAME, &ATIGDevs);
    nRadeonGDev = xf86MatchDevice(RADEON_NAME, &RadeonGDevs);

    if (!(numDevSections = nATIGDev + nRadeonGDev)) return FALSE;

    if (!ATIGDevs) {
	if (!(devSections = RadeonGDevs)) numDevSections = 1;
	else                              numDevSections = nRadeonGDev;
    } if (!RadeonGDevs) {
	devSections    = ATIGDevs;
	numDevSections = nATIGDev;
    } else {
	/* Combine into one list */
	devSections = xnfalloc((numDevSections + 1) * sizeof(GDevPtr));
	(void)memcpy(devSections,
		     ATIGDevs, nATIGDev * sizeof(GDevPtr));
	(void)memcpy(devSections + nATIGDev,
		     RadeonGDevs, nRadeonGDev * sizeof(GDevPtr));
	devSections[numDevSections] = NULL;
	xfree(ATIGDevs);
	xfree(RadeonGDevs);
    }

    numUsed = xf86MatchPciInstances(RADEON_NAME,
				    PCI_VENDOR_ATI,
				    RADEONChipsets,
				    RADEONPciChipsets,
				    devSections,
				    numDevSections,
				    drv,
				    &usedChips);

    if (numUsed <= 0) return FALSE;

    if (flags & PROBE_DETECT) {
	foundScreen = TRUE;
    } else {
	for (i = 0; i < numUsed; i++) {
	    ScrnInfoPtr    pScrn = NULL;
	    EntityInfoPtr  pEnt;
	    pEnt = xf86GetEntityInfo(usedChips[i]);
	    if ((pScrn = xf86ConfigPciEntity(pScrn, 0, usedChips[i],
					     RADEONPciChipsets, 0, 0, 0,
					     0, 0))) {
#ifdef XFree86LOADER
		if (!xf86LoadSubModule(pScrn, "radeon")) {
		    xf86Msg(X_ERROR, RADEON_NAME
			    ":  Failed to load \"radeon\" module.\n");
		    xf86DeleteScreen(pScrn->scrnIndex, 0);
		    continue;
		}

		xf86LoaderReqSymLists(RADEONSymbols, NULL);
#endif

		pScrn->driverVersion = RADEON_VERSION_CURRENT;
		pScrn->driverName    = RADEON_DRIVER_NAME;
		pScrn->name          = RADEON_NAME;
		pScrn->Probe         = RADEONProbe;
		pScrn->PreInit       = RADEONPreInit;
		pScrn->ScreenInit    = RADEONScreenInit;
		pScrn->SwitchMode    = RADEONSwitchMode;
#ifdef X_XF86MiscPassMessage
		pScrn->HandleMessage = RADEONHandleMessage;
#endif
		pScrn->AdjustFrame   = RADEONAdjustFrame;
		pScrn->EnterVT       = RADEONEnterVT;
		pScrn->LeaveVT       = RADEONLeaveVT;
		pScrn->FreeScreen    = RADEONFreeScreen;
		pScrn->ValidMode     = RADEONValidMode;
		foundScreen          = TRUE;
	    }

	    pEnt = xf86GetEntityInfo(usedChips[i]);

            /* create a RADEONEntity for all chips, even with 
               old single head Radeon, need to use pRADEONEnt 
               for new monitor detection routines
            */   
            {
		DevUnion   *pPriv;
		RADEONEntPtr pRADEONEnt;

		xf86SetEntitySharable(usedChips[i]);

		if (gRADEONEntityIndex == -1)
		    gRADEONEntityIndex = xf86AllocateEntityPrivateIndex();

		pPriv = xf86GetEntityPrivate(pEnt->index,
					     gRADEONEntityIndex);

		if (!pPriv->ptr) {
		    int j;
		    int instance = xf86GetNumEntityInstances(pEnt->index);

		    for (j = 0; j < instance; j++)
			xf86SetEntityInstanceForScreen(pScrn, pEnt->index, j);

		    pPriv->ptr = xnfcalloc(sizeof(RADEONEntRec), 1);
		    pRADEONEnt = pPriv->ptr;
		    pRADEONEnt->HasSecondary = FALSE;
		    pRADEONEnt->IsSecondaryRestored = FALSE;
		} else {
		    pRADEONEnt = pPriv->ptr;
		    pRADEONEnt->HasSecondary = TRUE;
		}
	    }
	    xfree(pEnt);
	}
    }

    xfree(usedChips);
    xfree(devSections);

    return foundScreen;
}