1 /* $NetBSD: mainbus.c,v 1.17 2008/06/28 12:13:38 tsutsui 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 1.17 2008/06/28 12:13:38 tsutsui 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); 80 } 81 } 82