1 /* $NetBSD: vme.c,v 1.13 2002/10/02 16:02:30 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 Gordon W. Ross. 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 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/device.h> 42 43 #include <machine/autoconf.h> 44 45 /* Does this machine have a VME bus? */ 46 extern int cpu_has_vme; 47 48 /* 49 * Convert vme unit number to bus type, 50 * but only for supported bus types. 51 * (See autoconf.h and vme.h) 52 */ 53 #define VME_UNITS 6 54 static const struct { 55 int bustype; 56 char name[8]; 57 } vme_info[VME_UNITS] = { 58 { BUS_VME16D16, "A16/D16" }, 59 { BUS_VME16D32, "A16/D32" }, 60 { BUS_VME24D16, "A24/D16" }, 61 { BUS_VME24D32, "A24/D32" }, 62 { BUS_VME32D16, "A32/D16" }, 63 { BUS_VME32D32, "A32/D32" }, 64 }; 65 66 static int vme_match __P((struct device *, struct cfdata *, void *)); 67 static void vme_attach __P((struct device *, struct device *, void *)); 68 69 CFATTACH_DECL(vme, sizeof(struct device), 70 vme_match, vme_attach, NULL, NULL); 71 72 static int 73 vme_match(parent, cf, aux) 74 struct device *parent; 75 struct cfdata *cf; 76 void *aux; 77 { 78 struct confargs *ca = aux; 79 int unit; 80 81 if (cpu_has_vme == 0) 82 return (0); 83 84 unit = cf->cf_unit; 85 if (unit >= VME_UNITS) 86 return (0); 87 88 if (ca->ca_bustype != vme_info[unit].bustype) 89 return (0); 90 91 return (1); 92 } 93 94 static void 95 vme_attach(parent, self, args) 96 struct device *parent; 97 struct device *self; 98 void *args; 99 { 100 int unit; 101 102 unit = self->dv_unit; 103 printf(": (%s)\n", vme_info[unit].name); 104 105 /* We know ca_bustype == BUS_VMExx */ 106 (void) config_search(bus_scan, self, args); 107 } 108