/*      $NetBSD: fdsub.S,v 1.2 2024/01/07 07:58:34 isaki Exp $  */

/*
 * Copyright (c) 2001 MINOURA Makoto.
 * 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 ``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 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 <machine/asm.h>
#include "iocscall.h"

/*
 * int fd_check_fmt(drive, head, minmax)
 *      int drive;              (0-3)
 *      int head;               (0-1)
 *      struct fdfmt *minmax;   (results are stored)
 *      return value:   0 on success, or negative
 */

        .text
ENTRY_NOPROFILE(fd_check_format)
||      movl    %sp@(4),%d1
||      andil   #3,%d1
||      orib    #0x90,%d1
||      lslw    #8,%d1
||      movql   #0,%d2
||      IOCS(__B_DRVCHK)
||      btst.b  #1,%d0
||      beq     fail
||      IOCS(__B_RECALI)

        moveml  %sp@(4),%d0-%d1
        andil   #1,%d1
        andil   #3,%d0
        lslw    #2,%d1
        orw     %d1,%d0
        jbsr    check_fd_format

        tstl    %d1
        beq     fail1

        moval   %sp@(12),%a0
        moveml  %d0-%d1,%a0@

        movl    #0,%d0
        rts

||fail:
||      movl    #-6,%d0
||      rts
fail1:
        movl    #-5,%d0

#define BOOT_ERROR(a)   movl    #0,%d1; \
                        rts

#include "chkfmt.s"