1 /* $NetBSD: obio.c,v 1.14 2002/10/02 05:36:39 thorpej 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 CFATTACH_DECL(obio, sizeof(struct device), 53 obio_match, obio_attach, NULL, NULL); 54 55 static int 56 obio_match(parent, cf, aux) 57 struct device *parent; 58 struct cfdata *cf; 59 void *aux; 60 { 61 static int obio_matched = 0; 62 63 /* Allow only one instance. */ 64 if (obio_matched) 65 return (0); 66 67 obio_matched = 1; 68 return (1); 69 } 70 71 static void 72 obio_attach(parent, self, aux) 73 struct device *parent; 74 struct device *self; 75 void *aux; 76 { 77 printf("\n"); 78 79 /* Search for and attach children. */ 80 (void)config_search(obio_search, self, aux); 81 } 82 83 int 84 obio_print(args, name) 85 void *args; 86 const char *name; 87 { 88 struct obio_attach_args *oa = (struct obio_attach_args *)args; 89 90 if (oa->oa_addr != (-1)) 91 printf(" addr %x", oa->oa_addr); 92 93 return (UNCONF); 94 } 95 96 int 97 obio_search(parent, cf, aux) 98 struct device *parent; 99 struct cfdata *cf; 100 void *aux; 101 { 102 struct mainbus_attach_args *mba = (struct mainbus_attach_args *) aux; 103 struct obio_attach_args oa; 104 105 oa.oa_addr = cf->cf_loc[0]; 106 oa.oa_drq = cf->cf_loc[1]; 107 oa.oa_hsk = cf->cf_loc[2]; 108 oa.oa_tag = mba->mba_bst; 109 oa.oa_dmat = mba->mba_dmat; 110 111 if (config_match(parent, cf, &oa) > 0) 112 config_attach(parent, cf, &oa, obio_print); 113 114 return (0); 115 } 116