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      1 /*	$NetBSD: mainbus.c,v 1.11 2021/08/07 16:19:00 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 16:19:00 thorpej Exp $");
     31 
     32 #include <sys/param.h>
     33 #include <sys/systm.h>
     34 #include <sys/device.h>
     35 #include <machine/autoconf.h>
     36 
     37 #include "locators.h"
     38 
     39 static int mainbus_match(device_t, cfdata_t, void *);
     40 static void mainbus_attach(device_t, device_t, void *);
     41 static int mainbus_search(device_t, cfdata_t, 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 	struct mainbus_attach_args maa;
     58 
     59 	aprint_naive("\n");
     60 	aprint_normal("\n");
     61 
     62 	maa.ma_addr1 = MAINBUSCF_ADDR1_DEFAULT;
     63 	maa.ma_irq1 = MAINBUSCF_IRQ1_DEFAULT;
     64 
     65 	/* CPU and SHBus */
     66 	maa.ma_name = "cpu";
     67 	config_found(self, &maa, mainbus_print, CFARGS_NONE);
     68 	maa.ma_name = "shb";
     69 	config_found(self, &maa, mainbus_print, CFARGS_NONE);
     70 
     71 	/* Devices */
     72 	config_search(self, NULL,
     73 	    CFARGS(.search = mainbus_search));
     74 }
     75 
     76 static int
     77 mainbus_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
     78 {
     79 	struct mainbus_attach_args maa;
     80 
     81 	if (strcmp(cf->cf_name, "cpu") == 0 ||
     82 	    strcmp(cf->cf_name, "shb") == 0)
     83 		return 0;
     84 
     85 	maa.ma_name = cf->cf_name;
     86 	maa.ma_addr1 = cf->cf_loc[MAINBUSCF_ADDR1];
     87 	maa.ma_addr2 = cf->cf_loc[MAINBUSCF_ADDR2];
     88 	maa.ma_irq1 = cf->cf_loc[MAINBUSCF_IRQ1];
     89 	maa.ma_irq2 = cf->cf_loc[MAINBUSCF_IRQ2];
     90 
     91 	if (config_probe(parent, cf, &maa))
     92 		config_attach(parent, cf, &maa, mainbus_print, CFARGS_NONE);
     93 
     94 	return 0;
     95 }
     96 
     97 static int
     98 mainbus_print(void *aux, const char *pnp)
     99 {
    100 	struct mainbus_attach_args *maa = aux;
    101 
    102 	if (maa->ma_addr1 != MAINBUSCF_ADDR1_DEFAULT) {
    103 		aprint_normal(" addr 0x%lx", maa->ma_addr1);
    104 		if (maa->ma_addr2 != MAINBUSCF_ADDR2_DEFAULT)
    105 			aprint_normal(",0x%lx", maa->ma_addr2);
    106 	}
    107 	if (maa->ma_irq1 != MAINBUSCF_IRQ1_DEFAULT) {
    108 		aprint_normal(" irq %d", maa->ma_irq1);
    109 		if (maa->ma_irq2 != MAINBUSCF_IRQ2_DEFAULT)
    110 			aprint_normal(",%d", maa->ma_irq2);
    111 	}
    112 	return pnp ? QUIET : UNCONF;
    113 }
    114