/*      $NetBSD: obio.c,v 1.27 2021/08/07 16:18:57 thorpej 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 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.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: obio.c,v 1.27 2021/08/07 16:18:57 thorpej Exp $");

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

#include "locators.h"

#include <machine/autoconf.h>

#include <mac68k/obio/obiovar.h>

static int      obio_match(device_t, cfdata_t, void *);
static void     obio_attach(device_t, device_t, void *);
static int      obio_print(void *, const char *);
static int      obio_search(device_t, cfdata_t, const int *, void *);

CFATTACH_DECL_NEW(obio, 0,
   obio_match, obio_attach, NULL, NULL);

static int
obio_match(device_t parent, cfdata_t cf, void *aux)
{
       static bool obio_matched;

       /* Allow only one instance. */
       if (obio_matched)
               return (0);

       obio_matched = true;
       return (1);
}

static void
obio_attach(device_t parent, device_t self, void *aux)
{
       printf("\n");

       /* Search for and attach children. */
       config_search(self, aux,
           CFARGS(.search = obio_search));
}

int
obio_print(void *args, const char *name)
{
       struct obio_attach_args *oa = (struct obio_attach_args *)args;

       if (oa->oa_addr != (-1))
               aprint_normal(" addr %x", oa->oa_addr);

       return (UNCONF);
}

int
obio_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
{
       struct mainbus_attach_args *mba = (struct mainbus_attach_args *) aux;
       struct obio_attach_args oa;

       oa.oa_addr = cf->cf_loc[OBIOCF_ADDR];
       oa.oa_tag = mba->mba_bst;
       oa.oa_dmat = mba->mba_dmat;

       if (config_probe(parent, cf, &oa))
               config_attach(parent, cf, &oa, obio_print, CFARGS_NONE);

       return (0);
}