1 /* $NetBSD: ofbus.c,v 1.16 2002/10/02 16:34:32 thorpej 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 1.16 2002/10/02 16:34:32 thorpej 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 CFATTACH_DECL(ofbus, sizeof(struct device), 48 ofbus_match, ofbus_attach, NULL, NULL); 49 50 static int 51 ofbus_print(aux, pnp) 52 void *aux; 53 const char *pnp; 54 { 55 struct ofbus_attach_args *oba = aux; 56 57 if (pnp) 58 printf("%s at %s", oba->oba_ofname, pnp); 59 else 60 printf(" (%s)", oba->oba_ofname); 61 return UNCONF; 62 } 63 64 int 65 ofbus_match(parent, cf, aux) 66 struct device *parent; 67 struct cfdata *cf; 68 void *aux; 69 { 70 struct ofbus_attach_args *oba = aux; 71 72 if (strcmp(oba->oba_busname, "ofw")) 73 return (0); 74 if (!OF_child(oba->oba_phandle)) 75 return (0); 76 return (1); 77 } 78 79 void 80 ofbus_attach(parent, dev, aux) 81 struct device *parent, *dev; 82 void *aux; 83 { 84 struct ofbus_attach_args *oba = aux; 85 struct ofbus_attach_args oba2; 86 char name[64]; 87 int child, units; 88 89 printf("\n"); 90 91 /* 92 * This is a hack to make the probe work on the scsi (and ide) bus. 93 * YES, I THINK IT IS A BUG IN THE OPENFIRMWARE TO NOT PROBE ALL 94 * DEVICES ON THESE BUSSES. 95 */ 96 units = 1; 97 name[0] = 0; 98 if (OF_getprop(oba->oba_phandle, "name", name, sizeof name) > 0) { 99 if (!strcmp(name, "scsi")) 100 units = 7; /* What about wide or hostid != 7? XXX */ 101 else if (!strcmp(name, "ide")) 102 units = 2; 103 } 104 105 for (child = OF_child(oba->oba_phandle); child != 0; 106 child = OF_peer(child)) { 107 oba2.oba_busname = "ofw"; 108 of_packagename(child, name, sizeof name); 109 oba2.oba_phandle = child; 110 for (oba2.oba_unit = 0; oba2.oba_unit < units; 111 oba2.oba_unit++) { 112 if (units > 1) { 113 sprintf(oba2.oba_ofname, "%s@%d", name, 114 oba2.oba_unit); 115 } else { 116 strcpy(oba2.oba_ofname, name); 117 } 118 config_found(dev, &oba2, ofbus_print); 119 } 120 } 121 } 122