1 /* $NetBSD: obio.c,v 1.21 2005/06/30 17:03:53 drochner 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/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: obio.c,v 1.21 2005/06/30 17:03:53 drochner Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/device.h> 45 46 #include "locators.h" 47 48 #include <machine/autoconf.h> 49 50 #include <mac68k/obio/obiovar.h> 51 52 static int obio_match(struct device *, struct cfdata *, void *); 53 static void obio_attach(struct device *, struct device *, void *); 54 static int obio_print(void *, const char *); 55 static int obio_search(struct device *, struct cfdata *, 56 const locdesc_t *, void *); 57 58 CFATTACH_DECL(obio, sizeof(struct device), 59 obio_match, obio_attach, NULL, NULL); 60 61 static int 62 obio_match(struct device *parent, struct cfdata *cf, void *aux) 63 { 64 static int obio_matched = 0; 65 66 /* Allow only one instance. */ 67 if (obio_matched) 68 return (0); 69 70 obio_matched = 1; 71 return (1); 72 } 73 74 static void 75 obio_attach(struct device *parent, struct device *self, void *aux) 76 { 77 printf("\n"); 78 79 /* Search for and attach children. */ 80 config_search_ia(obio_search, self, "obio", aux); 81 } 82 83 int 84 obio_print(void *args, const char *name) 85 { 86 struct obio_attach_args *oa = (struct obio_attach_args *)args; 87 88 if (oa->oa_addr != (-1)) 89 aprint_normal(" addr %x", oa->oa_addr); 90 91 return (UNCONF); 92 } 93 94 int 95 obio_search(struct device *parent, struct cfdata *cf, 96 const locdesc_t *ldesc, void *aux) 97 { 98 struct mainbus_attach_args *mba = (struct mainbus_attach_args *) aux; 99 struct obio_attach_args oa; 100 101 oa.oa_addr = cf->cf_loc[OBIOCF_ADDR]; 102 oa.oa_tag = mba->mba_bst; 103 oa.oa_dmat = mba->mba_dmat; 104 105 if (config_match(parent, cf, &oa) > 0) 106 config_attach(parent, cf, &oa, obio_print); 107 108 return (0); 109 } 110