/*      $NetBSD: mainbus.c,v 1.6 2021/08/07 16:18:57 thorpej Exp $      */

/*-
 * Copyright (c) 2002 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * 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: mainbus.c,v 1.6 2021/08/07 16:18:57 thorpej Exp $");

#include "obio.h"
#include "pci.h"

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

#include <machine/autoconf.h>
#include <sys/bus.h>

#include <landisk/dev/obiovar.h>

static int mainbus_match(device_t, cfdata_t, void *);
static void mainbus_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(mainbus, 0,
    mainbus_match, mainbus_attach, NULL, NULL);

static int mainbus_print(void *, const char *);

/* There can be only one. */
static int mainbus_found = 0;

static int
mainbus_match(device_t parent, cfdata_t cf, void *aux)
{

        if (mainbus_found)
                return (0);

        return (1);
}

static void
mainbus_attach(device_t parent, device_t self, void *aux)
{
        union {
                struct mainbus_attach_args mba_mba;
                struct confargs mba_ca;
                struct obiobus_attach_args mba_oba;
        } mba;

        mainbus_found = 1;

        aprint_naive("\n");
        aprint_normal("\n");

        /* CPU */
        memset(&mba, 0, sizeof(mba));
        mba.mba_ca.ca_name = "cpu";
        mba.mba_ca.ca_node = 0;
        config_found(self, &mba, mainbus_print, CFARGS_NONE);

#if NPCI > 0
        /* SH PCIC */
        memset(&mba, 0, sizeof(mba));
        mba.mba_mba.ma_name = "shpcic";
        config_found(self, &mba, mainbus_print, CFARGS_NONE);
#endif

        /* SH bus */
        memset(&mba, 0, sizeof(mba));
        mba.mba_mba.ma_name = "shb";
        config_found(self, &mba, mainbus_print, CFARGS_NONE);

#if NOBIO > 0
        /* on-board I/O */
        memset(&mba, 0, sizeof(mba));
        mba.mba_oba.oba_busname = "obio";
        mba.mba_oba.oba_iot = &obio_bus_io;
        mba.mba_oba.oba_memt = &obio_bus_mem;
        config_found(self, &mba, mainbus_print, CFARGS_NONE);
#endif
}

static int
mainbus_print(void *aux, const char *pnp)
{

        return (pnp ? QUIET : UNCONF);
}