1 /* $NetBSD: obio.c,v 1.25 2011/06/06 16:52:18 matt 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 1.25 2011/06/06 16:52:18 matt 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(device_t, cfdata_t, void *); 46 static void obio_attach(device_t, device_t, void *); 47 static int obio_print(void *, const char *); 48 static int obio_search(device_t, cfdata_t, const int *, void *); 49 50 CFATTACH_DECL_NEW(obio, 0, 51 obio_match, obio_attach, NULL, NULL); 52 53 static int 54 obio_match(device_t parent, cfdata_t cf, void *aux) 55 { 56 static bool obio_matched; 57 58 /* Allow only one instance. */ 59 if (obio_matched) 60 return (0); 61 62 obio_matched = true; 63 return (1); 64 } 65 66 static void 67 obio_attach(device_t parent, device_t self, void *aux) 68 { 69 printf("\n"); 70 71 /* Search for and attach children. */ 72 config_search_ia(obio_search, self, "obio", aux); 73 } 74 75 int 76 obio_print(void *args, const char *name) 77 { 78 struct obio_attach_args *oa = (struct obio_attach_args *)args; 79 80 if (oa->oa_addr != (-1)) 81 aprint_normal(" addr %x", oa->oa_addr); 82 83 return (UNCONF); 84 } 85 86 int 87 obio_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux) 88 { 89 struct mainbus_attach_args *mba = (struct mainbus_attach_args *) aux; 90 struct obio_attach_args oa; 91 92 oa.oa_addr = cf->cf_loc[OBIOCF_ADDR]; 93 oa.oa_tag = mba->mba_bst; 94 oa.oa_dmat = mba->mba_dmat; 95 96 if (config_match(parent, cf, &oa) > 0) 97 config_attach(parent, cf, &oa, obio_print); 98 99 return (0); 100 } 101