1 /* $NetBSD: obio.c,v 1.24 2008/04/28 20:23:27 martin 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: obio.c,v 1.24 2008/04/28 20:23:27 martin Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/device.h> 38 39 #include "locators.h" 40 41 #include <machine/autoconf.h> 42 43 #include <mac68k/obio/obiovar.h> 44 45 static int obio_match(struct device *, struct cfdata *, void *); 46 static void obio_attach(struct device *, struct device *, void *); 47 static int obio_print(void *, const char *); 48 static int obio_search(struct device *, struct cfdata *, 49 const int *, void *); 50 51 CFATTACH_DECL(obio, sizeof(struct device), 52 obio_match, obio_attach, NULL, NULL); 53 54 static int 55 obio_match(struct device *parent, struct cfdata *cf, void *aux) 56 { 57 static int obio_matched = 0; 58 59 /* Allow only one instance. */ 60 if (obio_matched) 61 return (0); 62 63 obio_matched = 1; 64 return (1); 65 } 66 67 static void 68 obio_attach(struct device *parent, struct device *self, void *aux) 69 { 70 printf("\n"); 71 72 /* Search for and attach children. */ 73 config_search_ia(obio_search, self, "obio", aux); 74 } 75 76 int 77 obio_print(void *args, const char *name) 78 { 79 struct obio_attach_args *oa = (struct obio_attach_args *)args; 80 81 if (oa->oa_addr != (-1)) 82 aprint_normal(" addr %x", oa->oa_addr); 83 84 return (UNCONF); 85 } 86 87 int 88 obio_search(struct device *parent, struct cfdata *cf, 89 const int *ldesc, void *aux) 90 { 91 struct mainbus_attach_args *mba = (struct mainbus_attach_args *) aux; 92 struct obio_attach_args oa; 93 94 oa.oa_addr = cf->cf_loc[OBIOCF_ADDR]; 95 oa.oa_tag = mba->mba_bst; 96 oa.oa_dmat = mba->mba_dmat; 97 98 if (config_match(parent, cf, &oa) > 0) 99 config_attach(parent, cf, &oa, obio_print); 100 101 return (0); 102 } 103