mainbus.c revision 1.8.2.3
1 /* $NetBSD: mainbus.c,v 1.8.2.3 2004/09/21 13:13:32 skrll Exp $ */ 2 3 /* 4 * Copyright (c) 1994,1995 Mark Brinicombe. 5 * Copyright (c) 1994 Brini. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Brini. 19 * 4. The name of the company nor the name of the author may be used to 20 * endorse or promote products derived from this software without specific 21 * prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED 24 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 25 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * RiscBSD kernel project 36 * 37 * mainbus.c 38 * 39 * mainbus configuration 40 * 41 * Created : 15/12/94 42 */ 43 44 #include <sys/cdefs.h> 45 __KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.8.2.3 2004/09/21 13:13:32 skrll Exp $"); 46 47 #include <sys/param.h> 48 #include <sys/systm.h> 49 #include <sys/kernel.h> 50 #include <sys/conf.h> 51 #include <sys/malloc.h> 52 #include <sys/device.h> 53 54 #if defined(arm32) /* XXX */ 55 #include <machine/io.h> 56 #endif 57 #include <machine/bus.h> 58 #include <arm/mainbus/mainbus.h> 59 #include "locators.h" 60 61 /* 62 * mainbus is a root device so we a bus space tag to pass to children 63 * 64 * The tag is provided by mainbus_io.c and mainbus_io_asm.S 65 */ 66 67 extern struct bus_space mainbus_bs_tag; 68 69 /* Prototypes for functions provided */ 70 71 static int mainbusmatch __P((struct device *, struct cfdata *, void *)); 72 static void mainbusattach __P((struct device *, struct device *, void *)); 73 static int mainbusprint __P((void *aux, const char *mainbus)); 74 static int mainbussearch __P((struct device *, struct cfdata *, void *)); 75 76 /* attach and device structures for the device */ 77 78 CFATTACH_DECL(mainbus, sizeof(struct device), 79 mainbusmatch, mainbusattach, NULL, NULL); 80 81 /* 82 * int mainbusmatch(struct device *parent, struct cfdata *cf, void *aux) 83 * 84 * Always match for unit 0 85 */ 86 87 static int 88 mainbusmatch(parent, cf, aux) 89 struct device *parent; 90 struct cfdata *cf; 91 void *aux; 92 { 93 return (1); 94 } 95 96 /* 97 * int mainbusprint(void *aux, const char *mainbus) 98 * 99 * print routine used during config of children 100 */ 101 102 static int 103 mainbusprint(aux, mainbus) 104 void *aux; 105 const char *mainbus; 106 { 107 struct mainbus_attach_args *mb = aux; 108 109 if (mb->mb_iobase != MAINBUSCF_BASE_DEFAULT) 110 aprint_normal(" base 0x%x", mb->mb_iobase); 111 if (mb->mb_iosize > 1) 112 aprint_normal("-0x%x", mb->mb_iobase + mb->mb_iosize - 1); 113 if (mb->mb_irq != -1) 114 aprint_normal(" irq %d", mb->mb_irq); 115 if (mb->mb_drq != -1) 116 aprint_normal(" drq 0x%08x", mb->mb_drq); 117 118 /* XXXX print flags */ 119 return (QUIET); 120 } 121 122 /* 123 * int mainbussearch(struct device *parent, struct device *self, void *aux) 124 * 125 * search routine used during the config of children 126 */ 127 128 static int 129 mainbussearch(parent, cf, aux) 130 struct device *parent; 131 struct cfdata *cf; 132 void *aux; 133 { 134 struct mainbus_attach_args mb; 135 int tryagain; 136 137 do { 138 if (cf->cf_loc[MAINBUSCF_BASE] == MAINBUSCF_BASE_DEFAULT) { 139 mb.mb_iobase = MAINBUSCF_BASE_DEFAULT; 140 mb.mb_iosize = 0; 141 mb.mb_drq = MAINBUSCF_DACK_DEFAULT; 142 mb.mb_irq = MAINBUSCF_IRQ_DEFAULT; 143 } else { 144 mb.mb_iobase = cf->cf_loc[MAINBUSCF_BASE]; 145 #if defined(arm32) && !defined(EB7500ATX) 146 mb.mb_iobase += IO_CONF_BASE; 147 #endif 148 mb.mb_iosize = 0; 149 mb.mb_drq = cf->cf_loc[MAINBUSCF_DACK]; 150 mb.mb_irq = cf->cf_loc[MAINBUSCF_IRQ]; 151 } 152 mb.mb_iot = &mainbus_bs_tag; 153 154 tryagain = 0; 155 if (config_match(parent, cf, &mb) > 0) { 156 config_attach(parent, cf, &mb, mainbusprint); 157 /* tryagain = (cf->cf_fstate == FSTATE_STAR);*/ 158 } 159 } while (tryagain); 160 161 return (0); 162 } 163 164 /* 165 * void mainbusattach(struct device *parent, struct device *self, void *aux) 166 * 167 * probe and attach all children 168 */ 169 170 static void 171 mainbusattach(parent, self, aux) 172 struct device *parent; 173 struct device *self; 174 void *aux; 175 { 176 aprint_naive("\n"); 177 aprint_normal("\n"); 178 179 config_search(mainbussearch, self, NULL); 180 } 181 182 /* End of mainbus.c */ 183
Indexes created Tue Oct 21 08:09:48 GMT 2025