/*      $OpenBSD: pchb.c,v 1.17 2023/03/08 04:43:07 guenther Exp $      */
/*      $NetBSD: pchb.c,v 1.4 2000/01/25 07:19:11 tsubai Exp $  */

/*-
 * Copyright (c) 1996 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Jason R. Thorpe.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/rwlock.h>

#include <machine/bus.h>

#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcidevs.h>

#include <dev/pci/agpvar.h>

#include "agp.h"

int     pchbmatch(struct device *, void *, void *);
void    pchbattach(struct device *, struct device *, void *);

const struct cfattach pchb_ca = {
        sizeof(struct device), pchbmatch, pchbattach
};

struct cfdriver pchb_cd = {
        NULL, "pchb", DV_DULL
};

int
pchbmatch(struct device *parent, void *cf, void *aux)
{
        struct pci_attach_args *pa = aux;

        /*
         * Match all known PCI host chipsets.
         */
        switch (PCI_VENDOR(pa->pa_id)) {
        case PCI_VENDOR_APPLE:
                switch (PCI_PRODUCT(pa->pa_id)) {
                case PCI_PRODUCT_APPLE_BANDIT:
                case PCI_PRODUCT_APPLE_UNINORTH:
                case PCI_PRODUCT_APPLE_UNINORTHETH:
                case PCI_PRODUCT_APPLE_UNINORTH_AGP:
                case PCI_PRODUCT_APPLE_PANGEA:
                case PCI_PRODUCT_APPLE_PANGEA_PCI:
                case PCI_PRODUCT_APPLE_PANGEA_AGP:
                case PCI_PRODUCT_APPLE_UNINORTH2:
                case PCI_PRODUCT_APPLE_UNINORTH2ETH:
                case PCI_PRODUCT_APPLE_UNINORTH2_AGP:
                case PCI_PRODUCT_APPLE_UNINORTH_AGP3:
                case PCI_PRODUCT_APPLE_UNINORTH5:
                case PCI_PRODUCT_APPLE_UNINORTH6:
                case PCI_PRODUCT_APPLE_SHASTA_HT:
                case PCI_PRODUCT_APPLE_K2:
                case PCI_PRODUCT_APPLE_INTREPID2_AGP:
                case PCI_PRODUCT_APPLE_INTREPID2_PCI1:
                case PCI_PRODUCT_APPLE_INTREPID2_PCI2:
                case PCI_PRODUCT_APPLE_U3_AGP:
                case PCI_PRODUCT_APPLE_U3L_AGP:
                case PCI_PRODUCT_APPLE_K2_AGP:
                        return (1);
                }
                break;

        case PCI_VENDOR_MOT:
                switch (PCI_PRODUCT(pa->pa_id)) {
                case PCI_PRODUCT_MOT_MPC106:
                        return (1);
                }
                break;
        }

        return (0);
}

void
pchbattach(struct device *parent, struct device  *self, void *aux)
{
#if NAGP > 0
        struct pci_attach_args *pa = aux;
#endif /* NAGP > 0 */

        printf("\n");

#if NAGP > 0
        if (pci_get_capability(pa->pa_pc, pa->pa_tag, PCI_CAP_AGP,
            NULL, NULL) != 0) {
                struct agp_attach_args  aa;
                aa.aa_busname = "agp";
                aa.aa_pa = pa;

                config_found(self, &aa, agpdev_print);
        }
#endif /* NAGP > 0 */
}