/*      $NetBSD: pcib.c,v 1.18 2021/08/07 16:19:00 thorpej Exp $        */

/*-
* Copyright (c) 1996, 1998 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 FOUNDATION 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.
*
*      from:  i386/pci/pcib.c,v 1.12
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pcib.c,v 1.18 2021/08/07 16:19:00 thorpej Exp $");

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

#include <sys/bus.h>

#include <dev/isa/isavar.h>

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

#include <dev/pci/pcidevs.h>

#include "isadma.h"

int     pcibmatch(device_t, cfdata_t, void *);
void    pcibattach(device_t, device_t, void *);

CFATTACH_DECL_NEW(pcib, 0,
   pcibmatch, pcibattach, NULL, NULL);

void    pcib_callback(device_t);

int
pcibmatch(device_t parent, cfdata_t match, void *aux)
{
       struct pci_attach_args *pa = aux;

       /*
        * Match tested PCI-ISA bridges.
        */
       switch (PCI_VENDOR(pa->pa_id)) {
       case PCI_VENDOR_WINBOND:
               switch (PCI_PRODUCT(pa->pa_id)) {
               case PCI_PRODUCT_WINBOND_W83C553F_0:
                       return (1);
               }
               break;

       case PCI_VENDOR_SYMPHONY:
               switch (PCI_PRODUCT(pa->pa_id)) {
               case PCI_PRODUCT_SYMPHONY_83C553:
                       return (1);
               }
               break;
       }

       return (0);
}

void
pcibattach(device_t parent, device_t self, void *aux)
{
       struct pci_attach_args *pa = aux;
       char devinfo[256];

       printf("\n");

       /*
        * Just print out a description and set the ISA bus
        * callback.
        */
       pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
       printf("%s: %s (rev. 0x%02x)\n", device_xname(self), devinfo,
           PCI_REVISION(pa->pa_class));

       /* Set the ISA bus callback */
       config_defer(self, pcib_callback);
}

void
pcib_callback(device_t self)
{
       struct isabus_attach_args iba;

       /*
        * Attach the ISA bus behind this bridge.
        */
       memset(&iba, 0, sizeof(iba));
       iba.iba_iot = &isa_io_bs_tag;
       iba.iba_memt = &isa_mem_bs_tag;
#if NISADMA > 0
       iba.iba_dmat = &isa_bus_dma_tag;
#endif
       config_found(self, &iba, isabusprint, CFARGS_NONE);
}