1 /* $NetBSD: mainbus.c,v 1.19 2022/02/11 17:30:48 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.19 2022/02/11 17:30:48 riastradh Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/device.h> 34 #include <sys/systm.h> 35 36 #include <machine/autoconf.h> 37 38 static int mainbus_match(device_t, cfdata_t, void *); 39 static void mainbus_attach(device_t, device_t, void *); 40 static int mainbus_search(device_t, cfdata_t, 41 const int *, void *); 42 static int mainbus_print(void *, const char *); 43 44 CFATTACH_DECL_NEW(mainbus, 0, 45 mainbus_match, mainbus_attach, NULL, NULL); 46 47 static int 48 mainbus_match(device_t parent, cfdata_t cf, void *aux) 49 { 50 51 return (1); 52 } 53 54 static void 55 mainbus_attach(device_t parent, device_t self, void *aux) 56 { 57 58 printf("\n"); 59 60 /* attach CPU first */ 61 config_found(self, &(struct mainbus_attach_args){.ma_name = "cpu"}, 62 mainbus_print, CFARGS_NONE); 63 64 config_search(self, NULL, 65 CFARGS(.search = mainbus_search)); 66 } 67 68 static int 69 mainbus_search(device_t parent, cfdata_t cf, 70 const int *ldesc, void *aux) 71 { 72 struct mainbus_attach_args ma; 73 74 ma.ma_name = cf->cf_name; 75 if (config_probe(parent, cf, &ma)) 76 config_attach(parent, cf, &ma, mainbus_print, CFARGS_NONE); 77 78 return (0); 79 } 80 81 static int 82 mainbus_print(void *aux, const char *pnp) 83 { 84 85 return (pnp ? QUIET : UNCONF); 86 } 87