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intio.c revision 1.1.1.1 
      1 /*	$NetBSD: intio.c,v 1.1.1.1 1998/06/09 07:53:05 dbj Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1996 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  * Autoconfiguration support for next68k internal i/o space.
     41  */
     42 
     43 #include <sys/param.h>
     44 #include <sys/systm.h>
     45 #include <sys/device.h>
     46 
     47 #include <next68k/dev/intiovar.h>
     48 
     49 int	intiomatch __P((struct device *, struct cfdata *, void *));
     50 void	intioattach __P((struct device *, struct device *, void *));
     51 int	intioprint __P((void *, const char *));
     52 int	intiosearch __P((struct device *, struct cfdata *, void *));
     53 
     54 struct cfattach intio_ca = {
     55 	sizeof(struct device), intiomatch, intioattach
     56 };
     57 
     58 #if 0
     59 struct cfdriver intio_cd = {
     60 	NULL, "intio", DV_DULL
     61 };
     62 #endif
     63 
     64 int
     65 intiomatch(parent, match, aux)
     66 	struct device *parent;
     67 	struct cfdata *match;
     68 	void *aux;
     69 {
     70 	static int intio_matched = 0;
     71 
     72 	/* Allow only one instance. */
     73 	if (intio_matched)
     74 		return (0);
     75 
     76 	intio_matched = 1;
     77 	return (1);
     78 }
     79 
     80 void
     81 intioattach(parent, self, aux)
     82 	struct device *parent, *self;
     83 	void *aux;
     84 {
     85 
     86 	printf("\n");
     87 
     88 	/* Search for and attach children. */
     89 	config_search(intiosearch, self, NULL);
     90 }
     91 
     92 int
     93 intioprint(aux, pnp)
     94 	void *aux;
     95 	const char *pnp;
     96 {
     97 	struct intio_attach_args *ia = aux;
     98 
     99 	if (ia->ia_addr != 0)
    100 		printf(" addr %p", ia->ia_addr);
    101 	return (UNCONF);
    102 }
    103 
    104 int
    105 intiosearch(parent, cf, aux)
    106 	struct device *parent;
    107 	struct cfdata *cf;
    108 	void *aux;
    109 {
    110 	struct intio_attach_args ia;
    111 
    112 	bzero(&ia, sizeof(ia));
    113 	if ((*cf->cf_attach->ca_match)(parent, cf, &ia) > 0) {
    114           config_attach(parent, cf, &ia, intioprint);
    115           printf("\n");
    116         }
    117 	return (0);
    118 }
    119