1 /* $NetBSD: obio.c,v 1.11 2002/04/10 05:13:09 briggs 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 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/device.h> 42 43 #include <machine/autoconf.h> 44 45 #include <mac68k/obio/obiovar.h> 46 47 static int obio_match __P((struct device *, struct cfdata *, void *)); 48 static void obio_attach __P((struct device *, struct device *, void *)); 49 static int obio_print __P((void *, const char *)); 50 static int obio_search __P((struct device *, struct cfdata *, void *)); 51 52 struct cfattach obio_ca = { 53 sizeof(struct device), obio_match, obio_attach 54 }; 55 56 static int 57 obio_match(parent, cf, aux) 58 struct device *parent; 59 struct cfdata *cf; 60 void *aux; 61 { 62 static int obio_matched = 0; 63 64 /* Allow only one instance. */ 65 if (obio_matched) 66 return (0); 67 68 obio_matched = 1; 69 return (1); 70 } 71 72 static void 73 obio_attach(parent, self, aux) 74 struct device *parent; 75 struct device *self; 76 void *aux; 77 { 78 printf("\n"); 79 80 /* Search for and attach children. */ 81 (void)config_search(obio_search, self, aux); 82 } 83 84 int 85 obio_print(args, name) 86 void *args; 87 const char *name; 88 { 89 struct obio_attach_args *oa = (struct obio_attach_args *)args; 90 91 if (oa->oa_addr != (-1)) 92 printf(" addr %x", oa->oa_addr); 93 94 return (UNCONF); 95 } 96 97 int 98 obio_search(parent, cf, aux) 99 struct device *parent; 100 struct cfdata *cf; 101 void *aux; 102 { 103 struct mainbus_attach_args *mba = (struct mainbus_attach_args *) aux; 104 struct obio_attach_args oa; 105 106 oa.oa_addr = cf->cf_loc[0]; 107 oa.oa_drq = cf->cf_loc[1]; 108 oa.oa_hsk = cf->cf_loc[2]; 109 oa.oa_tag = mba->mba_bst; 110 oa.oa_dmat = mba->mba_dmat; 111 112 if ((*cf->cf_attach->ca_match)(parent, cf, &oa) > 0) 113 config_attach(parent, cf, &oa, obio_print); 114 115 return (0); 116 } 117