1 /* $NetBSD: ofbus.c,v 1.12 2001/11/13 07:26:28 lukem Exp $ */ 2 3 /* 4 * Copyright (C) 1995, 1996 Wolfgang Solfrank. 5 * Copyright (C) 1995, 1996 TooLs GmbH. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by TooLs GmbH. 19 * 4. The name of TooLs GmbH may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 27 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 28 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 30 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 31 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: ofbus.c,v 1.12 2001/11/13 07:26:28 lukem Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/device.h> 40 41 #include <dev/ofw/openfirm.h> 42 43 int ofbus_match __P((struct device *, struct cfdata *, void *)); 44 void ofbus_attach __P((struct device *, struct device *, void *)); 45 static int ofbus_print __P((void *, const char *)); 46 47 struct cfattach ofbus_ca = { 48 sizeof(struct device), ofbus_match, ofbus_attach 49 }; 50 51 static int 52 ofbus_print(aux, pnp) 53 void *aux; 54 const char *pnp; 55 { 56 struct ofbus_attach_args *oba = aux; 57 char name[64]; 58 59 (void)of_packagename(oba->oba_phandle, name, sizeof name); 60 if (pnp) 61 printf("%s at %s", name, pnp); 62 else 63 printf(" (%s)", name); 64 return UNCONF; 65 } 66 67 int 68 ofbus_match(parent, cf, aux) 69 struct device *parent; 70 struct cfdata *cf; 71 void *aux; 72 { 73 struct ofbus_attach_args *oba = aux; 74 75 if (strcmp(oba->oba_busname, "ofw")) 76 return (0); 77 if (!OF_child(oba->oba_phandle)) 78 return (0); 79 return (1); 80 } 81 82 void 83 ofbus_attach(parent, dev, aux) 84 struct device *parent, *dev; 85 void *aux; 86 { 87 int child; 88 char name[5]; 89 struct ofbus_attach_args *oba = aux; 90 struct ofbus_attach_args oba2; 91 int units; 92 93 printf("\n"); 94 95 /* 96 * This is a hack to make the probe work on the scsi (and ide) bus. 97 * YES, I THINK IT IS A BUG IN THE OPENFIRMWARE TO NOT PROBE ALL 98 * DEVICES ON THESE BUSSES. 99 */ 100 units = 1; 101 if (OF_getprop(oba->oba_phandle, "name", name, sizeof name) > 0) { 102 if (!strcmp(name, "scsi")) 103 units = 7; /* What about wide or hostid != 7? XXX */ 104 else if (!strcmp(name, "ide")) 105 units = 2; 106 } 107 108 for (child = OF_child(oba->oba_phandle); child != 0; 109 child = OF_peer(child)) { 110 oba2.oba_busname = "ofw"; 111 oba2.oba_phandle = child; 112 for (oba2.oba_unit = 0; oba2.oba_unit < units; oba2.oba_unit++) 113 config_found(dev, &oba2, ofbus_print); 114 } 115 } 116