1 /* $NetBSD: intio.c,v 1.8 2003/07/15 02:59:31 lukem 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 next68k internal i/o space. 41 */ 42 43 #include <sys/cdefs.h> 44 __KERNEL_RCSID(0, "$NetBSD: intio.c,v 1.8 2003/07/15 02:59:31 lukem Exp $"); 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/device.h> 49 #include <sys/reboot.h> 50 51 #include <machine/autoconf.h> 52 53 #include <next68k/dev/intiovar.h> 54 55 int intiomatch __P((struct device *, struct cfdata *, void *)); 56 void intioattach __P((struct device *, struct device *, void *)); 57 int intioprint __P((void *, const char *)); 58 int intiosearch __P((struct device *, struct cfdata *, void *)); 59 60 CFATTACH_DECL(intio, sizeof(struct device), 61 intiomatch, intioattach, NULL, NULL); 62 63 #if 0 64 struct cfdriver intio_cd = { 65 NULL, "intio", DV_DULL 66 }; 67 #endif 68 69 static int intio_attached = 0; 70 71 int 72 intiomatch(parent, match, aux) 73 struct device *parent; 74 struct cfdata *match; 75 void *aux; 76 { 77 /* Allow only one instance. */ 78 if (intio_attached) 79 return (0); 80 81 return (1); 82 } 83 84 void 85 intioattach(parent, self, aux) 86 struct device *parent, *self; 87 void *aux; 88 { 89 90 printf("\n"); 91 92 /* Search for and attach children. */ 93 config_search(intiosearch, self, aux); 94 95 intio_attached = 1; 96 } 97 98 int 99 intioprint(aux, pnp) 100 void *aux; 101 const char *pnp; 102 { 103 struct intio_attach_args *ia = aux; 104 105 if (ia->ia_addr) 106 aprint_normal(" addr %p", ia->ia_addr); 107 108 return (UNCONF); 109 } 110 111 int 112 intiosearch(parent, cf, aux) 113 struct device *parent; 114 struct cfdata *cf; 115 void *aux; 116 { 117 struct mainbus_attach_args *mba = (struct mainbus_attach_args *) aux; 118 struct intio_attach_args ia; 119 120 do { 121 ia.ia_addr = NULL; 122 ia.ia_bst = NEXT68K_INTIO_BUS_SPACE; 123 ia.ia_dmat = mba->mba_dmat; 124 125 if (config_match(parent, cf, &ia) == 0) 126 break; 127 config_attach(parent, cf, &ia, intioprint); 128 } while (cf->cf_fstate == FSTATE_STAR); 129 130 return (0); 131 } 132