1 /* $NetBSD: intio.c,v 1.10 2005/06/30 17:03:53 drochner 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 1.10 2005/06/30 17:03:53 drochner 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(struct device *, struct cfdata *, void *); 56 void intioattach(struct device *, struct device *, void *); 57 int intioprint(void *, const char *); 58 int intiosearch(struct device *, struct cfdata *, 59 const locdesc_t *, void *); 60 61 CFATTACH_DECL(intio, sizeof(struct device), 62 intiomatch, intioattach, NULL, NULL); 63 64 #if 0 65 struct cfdriver intio_cd = { 66 NULL, "intio", DV_DULL 67 }; 68 #endif 69 70 static int intio_attached = 0; 71 72 int 73 intiomatch(struct device *parent, struct cfdata *match, 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(struct device *parent, struct device *self, void *aux) 84 { 85 86 printf("\n"); 87 88 /* Search for and attach children. */ 89 config_search_ia(intiosearch, self, "intio", aux); 90 91 intio_attached = 1; 92 } 93 94 int 95 intioprint(void *aux, const char *pnp) 96 { 97 struct intio_attach_args *ia = aux; 98 99 if (ia->ia_addr) 100 aprint_normal(" addr %p", ia->ia_addr); 101 102 return (UNCONF); 103 } 104 105 int 106 intiosearch(struct device *parent, struct cfdata *cf, 107 const locdesc_t *ldesc, void *aux) 108 { 109 struct mainbus_attach_args *mba = (struct mainbus_attach_args *) aux; 110 struct intio_attach_args ia; 111 112 do { 113 ia.ia_addr = NULL; 114 ia.ia_bst = NEXT68K_INTIO_BUS_SPACE; 115 ia.ia_dmat = mba->mba_dmat; 116 117 if (config_match(parent, cf, &ia) == 0) 118 break; 119 config_attach(parent, cf, &ia, intioprint); 120 } while (cf->cf_fstate == FSTATE_STAR); 121 122 return (0); 123 } 124