1 /* $NetBSD: intio.c,v 1.3 1997/10/09 09:06:54 jtc 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 /* 40 * Autoconfiguration support for hp300 internal i/o space. 41 */ 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/device.h> 46 47 #include <hp300/dev/intiovar.h> 48 49 int intiomatch __P((struct device *, struct cfdata *, void *)); 50 void intioattach __P((struct device *, struct device *, void *)); 51 int intioprint __P((void *, const char *)); 52 int intiosearch __P((struct device *, struct cfdata *, void *)); 53 54 struct cfattach intio_ca = { 55 sizeof(struct device), intiomatch, intioattach 56 }; 57 58 struct cfdriver intio_cd = { 59 NULL, "intio", DV_DULL 60 }; 61 62 int 63 intiomatch(parent, match, aux) 64 struct device *parent; 65 struct cfdata *match; 66 void *aux; 67 { 68 static int intio_matched = 0; 69 70 /* Allow only one instance. */ 71 if (intio_matched) 72 return (0); 73 74 intio_matched = 1; 75 return (1); 76 } 77 78 void 79 intioattach(parent, self, aux) 80 struct device *parent, *self; 81 void *aux; 82 { 83 84 printf("\n"); 85 86 /* Search for and attach children. */ 87 config_search(intiosearch, self, NULL); 88 } 89 90 int 91 intioprint(aux, pnp) 92 void *aux; 93 const char *pnp; 94 { 95 struct intio_attach_args *ia = aux; 96 97 if (ia->ia_addr != 0) 98 printf(" addr %p", ia->ia_addr); 99 return (UNCONF); 100 } 101 102 int 103 intiosearch(parent, cf, aux) 104 struct device *parent; 105 struct cfdata *cf; 106 void *aux; 107 { 108 struct intio_attach_args ia; 109 110 bzero(&ia, sizeof(ia)); 111 if ((*cf->cf_attach->ca_match)(parent, cf, &ia) > 0) 112 config_attach(parent, cf, &ia, intioprint); 113 return (0); 114 } 115