/*      $NetBSD: autoconf.c,v 1.31 2012/10/27 17:17:43 chs Exp $        */

/*
 * Copyright (c) 2000 Soren S. Jorvang.  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 AUTHOR 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 AUTHOR 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: autoconf.c,v 1.31 2012/10/27 17:17:43 chs Exp $");

#include <sys/param.h>
#include <sys/buf.h>
#include <sys/cpu.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/intr.h>
#include <sys/systm.h>

#include <dev/pci/pcivar.h>
#include <dev/ata/atavar.h>

extern char     bootstring[];
extern int      netboot;
extern int      bootunit;
extern int      bootpart;

void
cpu_configure(void)
{

        (void)splhigh();

        intr_init();

        if (config_rootfound("mainbus", NULL) == NULL)
                panic("no mainbus found");

        /*
         * Hardware interrupts will be enabled in
         * sys/arch/mips/mips/mips3_clockintr.c:mips3_initclocks()
         * to avoid hardclock(9) by CPU INT5 before softclockintr is
         * initialized in initclocks().
         */
}

void
cpu_rootconf(void)
{

        printf("boot device: %s\n",
            booted_device ? device_xname(booted_device) : "<unknown>");

        rootconf();
}

void
device_register(device_t dev, void *aux)
{

        if (booted_device != NULL)
                return;

        if (netboot == 1) {
                /* check tlp0 on netboot */
                if (device_class(dev) == DV_IFNET &&
                    device_is_a(dev, "tlp")) {
                        struct pci_attach_args *pa = aux;

                        if (pa->pa_bus == 0 &&
                            pa->pa_device == 7 &&
                            pa->pa_function == 0)
                                booted_device = dev;
                }
        } else {
                /* check wd channel and drive */
                if (device_class(dev) == DV_DISK &&
                    device_is_a(dev, "wd")) {
                        struct ata_device *adev = aux;
                        int unit;

                        unit = adev->adev_channel * 2 +
                            adev->adev_drv_data->drive;
                        if (unit == bootunit) {
                                booted_device = dev;
                        }
                }
                /*
                 * XXX Match up MBR boot specification with BSD disklabel
                 *     for root?
                 */
                booted_partition = 0;
        }
}