mainbus.c revision 1.3.8.3
1 /* $NetBSD: mainbus.c,v 1.3.8.3 2003/01/03 16:41:09 thorpej 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/param.h> 45 #include <sys/systm.h> 46 #include <sys/kernel.h> 47 #include <sys/conf.h> 48 #include <sys/malloc.h> 49 #include <sys/device.h> 50 51 #if defined(arm32) /* XXX */ 52 #include <machine/io.h> 53 #endif 54 #include <machine/bus.h> 55 #include <arm/mainbus/mainbus.h> 56 #include "locators.h" 57 58 /* 59 * mainbus is a root device so we a bus space tag to pass to children 60 * 61 * The tag is provided by mainbus_io.c and mainbus_io_asm.S 62 */ 63 64 extern struct bus_space mainbus_bs_tag; 65 66 /* Prototypes for functions provided */ 67 68 static int mainbusmatch __P((struct device *, struct cfdata *, void *)); 69 static void mainbusattach __P((struct device *, struct device *, void *)); 70 static int mainbusprint __P((void *aux, const char *mainbus)); 71 static int mainbussearch __P((struct device *, struct cfdata *, void *)); 72 73 /* attach and device structures for the device */ 74 75 CFATTACH_DECL(mainbus, sizeof(struct device), 76 mainbusmatch, mainbusattach, NULL, NULL); 77 78 /* 79 * int mainbusmatch(struct device *parent, struct cfdata *cf, void *aux) 80 * 81 * Always match for unit 0 82 */ 83 84 static int 85 mainbusmatch(parent, cf, aux) 86 struct device *parent; 87 struct cfdata *cf; 88 void *aux; 89 { 90 return (1); 91 } 92 93 /* 94 * int mainbusprint(void *aux, const char *mainbus) 95 * 96 * print routine used during config of children 97 */ 98 99 static int 100 mainbusprint(aux, mainbus) 101 void *aux; 102 const char *mainbus; 103 { 104 struct mainbus_attach_args *mb = aux; 105 106 if (mb->mb_iobase != MAINBUSCF_BASE_DEFAULT) 107 aprint_normal(" base 0x%x", mb->mb_iobase); 108 if (mb->mb_iosize > 1) 109 aprint_normal("-0x%x", mb->mb_iobase + mb->mb_iosize - 1); 110 if (mb->mb_irq != -1) 111 aprint_normal(" irq %d", mb->mb_irq); 112 if (mb->mb_drq != -1) 113 aprint_normal(" drq 0x%08x", mb->mb_drq); 114 115 /* XXXX print flags */ 116 return (QUIET); 117 } 118 119 /* 120 * int mainbussearch(struct device *parent, struct device *self, void *aux) 121 * 122 * search routine used during the config of children 123 */ 124 125 static int 126 mainbussearch(parent, cf, aux) 127 struct device *parent; 128 struct cfdata *cf; 129 void *aux; 130 { 131 struct mainbus_attach_args mb; 132 int tryagain; 133 134 do { 135 if (cf->cf_loc[MAINBUSCF_BASE] == MAINBUSCF_BASE_DEFAULT) { 136 mb.mb_iobase = MAINBUSCF_BASE_DEFAULT; 137 mb.mb_iosize = 0; 138 mb.mb_drq = MAINBUSCF_DACK_DEFAULT; 139 mb.mb_irq = MAINBUSCF_IRQ_DEFAULT; 140 } else { 141 mb.mb_iobase = cf->cf_loc[MAINBUSCF_BASE]; 142 #if defined(arm32) /* XXX */ 143 mb.mb_iobase += IO_CONF_BASE; 144 #endif 145 mb.mb_iosize = 0; 146 mb.mb_drq = cf->cf_loc[MAINBUSCF_DACK]; 147 mb.mb_irq = cf->cf_loc[MAINBUSCF_IRQ]; 148 } 149 mb.mb_iot = &mainbus_bs_tag; 150 151 tryagain = 0; 152 if (config_match(parent, cf, &mb) > 0) { 153 config_attach(parent, cf, &mb, mainbusprint); 154 /* tryagain = (cf->cf_fstate == FSTATE_STAR);*/ 155 } 156 } while (tryagain); 157 158 return (0); 159 } 160 161 /* 162 * void mainbusattach(struct device *parent, struct device *self, void *aux) 163 * 164 * probe and attach all children 165 */ 166 167 static void 168 mainbusattach(parent, self, aux) 169 struct device *parent; 170 struct device *self; 171 void *aux; 172 { 173 printf("\n"); 174 175 config_search(mainbussearch, self, NULL); 176 } 177 178 /* End of mainbus.c */ 179
Indexes created Tue Oct 21 12:09:54 GMT 2025