1 /* $NetBSD: intio.c,v 1.3 2002/09/11 01:46:31 mycroft 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/param.h> 44 #include <sys/systm.h> 45 #include <sys/device.h> 46 #include <sys/reboot.h> 47 48 #include <machine/autoconf.h> 49 50 #include <next68k/dev/intiovar.h> 51 52 int intiomatch __P((struct device *, struct cfdata *, void *)); 53 void intioattach __P((struct device *, struct device *, void *)); 54 int intioprint __P((void *, const char *)); 55 int intiosearch __P((struct device *, struct cfdata *, void *)); 56 57 struct cfattach intio_ca = { 58 sizeof(struct device), intiomatch, intioattach 59 }; 60 61 #if 0 62 struct cfdriver intio_cd = { 63 NULL, "intio", DV_DULL 64 }; 65 #endif 66 67 static int intio_attached = 0; 68 69 int 70 intiomatch(parent, match, aux) 71 struct device *parent; 72 struct cfdata *match; 73 void *aux; 74 { 75 /* Allow only one instance. */ 76 if (intio_attached) 77 return (0); 78 79 return (1); 80 } 81 82 void 83 intioattach(parent, self, aux) 84 struct device *parent, *self; 85 void *aux; 86 { 87 88 printf("\n"); 89 90 /* Search for and attach children. */ 91 config_search(intiosearch, self, aux); 92 93 intio_attached = 1; 94 } 95 96 int 97 intioprint(aux, pnp) 98 void *aux; 99 const char *pnp; 100 { 101 struct intio_attach_args *ia = aux; 102 103 if (bootverbose && ia->ia_addr) 104 printf(" addr %p", ia->ia_addr); 105 106 return (UNCONF); 107 } 108 109 int 110 intiosearch(parent, cf, aux) 111 struct device *parent; 112 struct cfdata *cf; 113 void *aux; 114 { 115 struct mainbus_attach_args *mba = (struct mainbus_attach_args *) aux; 116 struct intio_attach_args ia; 117 118 do { 119 ia.ia_addr = NULL; 120 ia.ia_bst = NEXT68K_INTIO_BUS_SPACE; 121 ia.ia_dmat = mba->mba_dmat; 122 123 if ((*cf->cf_attach->ca_match)(parent, cf, &ia) == 0) 124 break; 125 config_attach(parent, cf, &ia, intioprint); 126 } while (cf->cf_fstate == FSTATE_STAR); 127 128 return (0); 129 } 130