1 /* $NetBSD: vme.c,v 1.11 2005/12/11 12:19:27 christos 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/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: vme.c,v 1.11 2005/12/11 12:19:27 christos Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/device.h> 45 46 #include <machine/autoconf.h> 47 48 /* Does this machine have a VME bus? */ 49 extern int cpu_has_vme; 50 51 /* 52 * Convert vme unit number to bus type, 53 * but only for supported bus types. 54 * (See autoconf.h and vme.h) 55 */ 56 #define VME_UNITS 6 57 static const struct { 58 int bustype; 59 char name[8]; 60 } vme_info[VME_UNITS] = { 61 { BUS_VME16D16, "A16/D16" }, 62 { BUS_VME16D32, "A16/D32" }, 63 { BUS_VME24D16, "A24/D16" }, 64 { BUS_VME24D32, "A24/D32" }, 65 { BUS_VME32D16, "A32/D16" }, 66 { BUS_VME32D32, "A32/D32" }, 67 }; 68 69 static int vme_match(struct device *, struct cfdata *, void *); 70 static void vme_attach(struct device *, struct device *, void *); 71 72 CFATTACH_DECL(vme, sizeof(struct device), 73 vme_match, vme_attach, NULL, NULL); 74 75 static int 76 vme_match(struct device *parent, struct cfdata *cf, 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(struct device *parent, struct device *self, void *args) 96 { 97 int unit; 98 99 unit = self->dv_unit; 100 printf(": (%s)\n", vme_info[unit].name); 101 102 /* We know ca_bustype == BUS_VMExx */ 103 config_search_ia(bus_scan, self, "vme", args); 104 } 105