/*      $NetBSD: db_autoconf.c,v 1.3 2022/03/28 12:38:58 riastradh Exp $        */

/*-
 * Copyright (c) 2016 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: db_autoconf.c,v 1.3 2022/03/28 12:38:58 riastradh Exp $");

#ifndef _KERNEL
#include <stdbool.h>
#endif

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

#include <ddb/ddb.h>

static const char *classnames[] = {
        "dull", "cpu", "disk", "ifnet", "tape", "tty",
        "audiodev", "displaydev", "bus", "virtual"
};

struct device *
db_device_first(void)
{

        return db_read_ptr("alldevs");
}

struct device *
db_device_next(struct device *dv)
{

        db_read_bytes((db_addr_t)&dv->dv_list.tqe_next, sizeof(dv),
            (char *)&dv);
        return dv;
}

void
db_show_all_devices(db_expr_t addr, bool haddr, db_expr_t count,
                  const char *modif)
{
        struct device buf;
        struct device *dv;
        const char *cl;

        db_printf("%-16s %10s %4s %18s %18s\n",
                "NAME","CLASS","UNIT","DEVICE_T","PRIVATE");

        for (dv = db_device_first(); dv != NULL; dv = db_device_next(dv)) {
                db_read_bytes((db_addr_t)dv, sizeof(buf), (char *)&buf);

                unsigned i = buf.dv_class;

                if (i >= __arraycount(classnames))
                        cl = "????";
                else
                        cl = classnames[i];

                db_printf("%-16.16s", buf.dv_xname);
                db_printf(" %10s", cl);
                db_printf(" %4u", buf.dv_unit);
                db_printf(" %18" PRIxPTR, (uintptr_t)dv);
                db_printf(" %18" PRIxPTR, (uintptr_t)buf.dv_private);
                db_printf("\n");
        }
}