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chdsk.c revision 1.1.136.1 
      1 /*	$NetBSD: chdsk.c,v 1.1.136.1 2009/01/19 13:17:08 skrll Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2001 MINOURA Makoto.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #include <lib/libsa/stand.h>
     29 #include <lib/libkern/libkern.h>
     30 
     31 #include "libx68k.h"
     32 #include "iocs.h"
     33 #include "fdvar.h"
     34 #include "consio.h"
     35 
     36 int
     37 changedisk_hook(struct open_file *f)
     38 {
     39 	if (strcmp(f->f_dev->dv_name, "fd") == 0) {
     40 		struct fd_softc *sc = f->f_devdata;
     41 		int unit = (0x90 + sc->unit) << 8;
     42 
     43 		/* unlock */
     44 		IOCS_B_DRVCHK(unit, 3);
     45 		/* eject */
     46 		IOCS_B_DRVCHK(unit, 1);
     47 		awaitkey_1sec();
     48 		/* prompt */
     49 		IOCS_B_DRVCHK(unit, 4);
     50 		/* poll for medium */
     51 		while ((IOCS_B_DRVCHK(unit, 0) & 2) == 0)
     52 			awaitkey_1sec();
     53 		/* lock */
     54 		IOCS_B_DRVCHK(unit, 2);
     55 	}
     56 
     57 	return 0;
     58 }
     59