Home | History | Annotate | Line # | Download | only in sun3 
      1 /*	$NetBSD: mainbus.c,v 1.20 2021/08/07 16:19:06 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1996 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Gordon W. Ross.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.20 2021/08/07 16:19:06 thorpej Exp $");
     34 
     35 #include <sys/param.h>
     36 #include <sys/systm.h>
     37 #include <sys/device.h>
     38 
     39 #include <machine/autoconf.h>
     40 
     41 static int	main_match(device_t, cfdata_t, void *);
     42 static void	main_attach(device_t, device_t, void *);
     43 
     44 CFATTACH_DECL_NEW(mainbus, 0,
     45     main_match, main_attach, NULL, NULL);
     46 
     47 /*
     48  * Probe for the mainbus; always succeeds.
     49  */
     50 static int
     51 main_match(device_t parent, cfdata_t cf, void *aux)
     52 {
     53 
     54 	return 1;
     55 }
     56 
     57 /*
     58  * Do "direct" configuration for the bus types on mainbus.
     59  * This controls the order of autoconfig for important things
     60  * used early.  For example, idprom is used by Ether drivers.
     61  */
     62 static void
     63 main_attach(device_t parent, device_t self, void *args)
     64 {
     65 	struct confargs ca;
     66 	int i;
     67 
     68 	aprint_normal("\n");
     69 
     70 	ca.ca_bustag = &mainbus_space_tag;
     71 	ca.ca_dmatag = &mainbus_dma_tag;
     72 	ca.ca_name = NULL;
     73 	ca.ca_paddr = -1;
     74 	ca.ca_intpri = -1;
     75 	ca.ca_intvec = -1;
     76 
     77 	for (i = 0; i < BUS__NTYPES; i++) {
     78 		ca.ca_bustype = i;
     79 		(void)config_found(self, &ca, NULL, CFARGS_NONE);
     80 	}
     81 }
     82