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      1 /*	$NetBSD: mainbus.c,v 1.11 2021/08/07 16:18:53 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2002 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 1.11 2021/08/07 16:18:53 thorpej Exp $");
     31 
     32 #include <sys/param.h>
     33 #include <sys/systm.h>
     34 #include <sys/device.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 
     41 CFATTACH_DECL_NEW(mainbus, 0,
     42     mainbus_match, mainbus_attach, NULL, NULL);
     43 
     44 static int mainbus_search(device_t, cfdata_t, const int *, void *);
     45 static int mainbus_print(void *, const char *);
     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 	struct mainbus_attach_args maa;
     58 
     59 	aprint_naive("\n");
     60 	aprint_normal("\n");
     61 
     62 	/* CPU  */
     63 	memset(&maa, 0, sizeof(maa));
     64 	maa.ma_name = "cpu";
     65 	config_found(self, &maa, mainbus_print, CFARGS_NONE);
     66 
     67 	/* Devices */
     68 	config_search(self, NULL,
     69 	    CFARGS(.search = mainbus_search));
     70 }
     71 
     72 static int
     73 mainbus_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
     74 {
     75 	struct mainbus_attach_args maa;
     76 
     77 	if (strcmp(cf->cf_name, "cpu") == 0)
     78 		return 0;
     79 
     80 	maa.ma_name = cf->cf_name;
     81 
     82 	if (config_probe(parent, cf, &maa))
     83 		config_attach(parent, cf, &maa, mainbus_print, CFARGS_NONE);
     84 
     85 	return 0;
     86 }
     87 
     88 static int
     89 mainbus_print(void *aux, const char *pnp)
     90 {
     91 
     92 	return (pnp ? QUIET : UNCONF);
     93 }
     94