1/* $NetBSD: obio.c,v 1.27 2021/08/07 16:18:57 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 * 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 1.27 2021/08/07 16:18:57 thorpej 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 45static int obio_match(device_t, cfdata_t, void *); 46static void obio_attach(device_t, device_t, void *); 47static int obio_print(void *, const char *); 48static int obio_search(device_t, cfdata_t, const int *, void *); 49 50CFATTACH_DECL_NEW(obio, 0, 51 obio_match, obio_attach, NULL, NULL); 52 53static int 54obio_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 66static void 67obio_attach(device_t parent, device_t self, void *aux) 68{ 69 printf("\n"); 70 71 /* Search for and attach children. */ 72 config_search(self, aux, 73 CFARGS(.search = obio_search)); 74} 75 76int 77obio_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 87int 88obio_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux) 89{ 90 struct mainbus_attach_args *mba = (struct mainbus_attach_args *) aux; 91 struct obio_attach_args oa; 92 93 oa.oa_addr = cf->cf_loc[OBIOCF_ADDR]; 94 oa.oa_tag = mba->mba_bst; 95 oa.oa_dmat = mba->mba_dmat; 96 97 if (config_probe(parent, cf, &oa)) 98 config_attach(parent, cf, &oa, obio_print, CFARGS_NONE); 99 100 return (0); 101} 102