scsirom.c revision 1.4
1 /* $NetBSD: scsirom.c,v 1.4 1999/04/22 12:55:53 minoura Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Minoura Makoto. 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by Charles D. Cranor and 21 * Washington University. 22 * 4. The name of the author may not be used to endorse or promote products 23 * derived from this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 26 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 27 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 28 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 29 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 30 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 31 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 34 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 35 */ 36 37 /* 38 * SCSI BIOS ROM. 39 * Used to probe the board. 40 */ 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/device.h> 45 46 #include <machine/bus.h> 47 #include <machine/cpu.h> 48 49 #include <arch/x68k/dev/intiovar.h> 50 #include <arch/x68k/dev/scsiromvar.h> 51 52 struct { 53 paddr_t addr, devaddr; 54 int intr; 55 const char id[7]; 56 } scsirom_descr[] = {{ 57 0x00fc0000, 0x00e96020, 108, "SCSIIN" 58 }, { 59 0x00ea0020, 0x00ea0000, 246, "SCSIEX" 60 }}; 61 62 #define SCSIROM_ID 0x24 63 64 /* 65 * autoconf stuff 66 */ 67 static int scsirom_find __P((struct device *, struct intio_attach_args *)); 68 static int scsirom_match __P((struct device *, struct cfdata *, void *)); 69 static void scsirom_attach __P((struct device *, struct device *, void *)); 70 71 struct cfattach scsirom_ca = { 72 sizeof(struct scsirom_softc), scsirom_match, scsirom_attach 73 }; 74 75 static int 76 scsirom_find (parent, ia) 77 struct device *parent; 78 struct intio_attach_args *ia; 79 { 80 bus_space_handle_t ioh; 81 char buf[10]; 82 int which; 83 int r = -1; 84 85 if (ia->ia_addr == scsirom_descr[INTERNAL].addr) 86 which = INTERNAL; 87 else if (ia->ia_addr == scsirom_descr[EXTERNAL].addr) 88 which = EXTERNAL; 89 else 90 return -1; 91 92 ia->ia_size = 0x1fe0; 93 if (intio_map_allocate_region (parent, ia, INTIO_MAP_TESTONLY)) 94 return -1; 95 96 if (bus_space_map (ia->ia_bst, ia->ia_addr, ia->ia_size, 0, &ioh) < 0) 97 return -1; 98 if (badaddr ((caddr_t)INTIO_ADDR(ia->ia_addr+SCSIROM_ID))) { 99 bus_space_unmap (ia->ia_bst, ioh, ia->ia_size); 100 return -1; 101 } 102 if (memcmp(buf, scsirom_descr[which].id, 6) == 0) 103 r = which; 104 bus_space_unmap (ia->ia_bst, ioh, ia->ia_size); 105 106 return r; 107 } 108 109 static int 110 scsirom_match(parent, cf, aux) 111 struct device *parent; 112 struct cfdata *cf; 113 void *aux; 114 { 115 struct intio_attach_args *ia = aux; 116 int r; 117 118 if (strcmp (ia->ia_name, "scsirom") != 0) 119 return 0; 120 121 if (ia->ia_addr == INTIOCF_ADDR_DEFAULT) { 122 ia->ia_addr = scsirom_descr[0].addr; 123 r = scsirom_find (parent, ia); 124 if (r == INTERNAL) 125 return 1; 126 ia->ia_addr = scsirom_descr[1].addr; 127 r = scsirom_find (parent, ia); 128 if (r == EXTERNAL) 129 return 1; 130 return 0; 131 } else if (scsirom_find(parent, ia) >= 0) 132 return 1; 133 else 134 return 0; 135 } 136 137 static void 138 scsirom_attach(parent, self, aux) 139 struct device *parent, *self; 140 void *aux; 141 { 142 struct scsirom_softc *sc = (struct scsirom_softc *)self; 143 struct intio_attach_args *ia = aux; 144 int r; 145 struct cfdata *cf; 146 147 sc->sc_addr = ia->ia_addr; 148 sc->sc_which = scsirom_find (parent, ia); 149 #ifdef DIAGNOSTIC 150 if (sc->sc_which < 0) 151 panic ("SCSIROM curruption??"); 152 #endif 153 r = intio_map_allocate_region (parent, ia, INTIO_MAP_ALLOCATE); 154 #ifdef DIAGNOSTIC 155 if (r) 156 panic ("IO map for SCSIROM corruption??"); 157 #endif 158 159 ia->ia_addr = scsirom_descr[sc->sc_which].devaddr; 160 if (ia->ia_intr == INTIOCF_INTR_DEFAULT) 161 ia->ia_intr = scsirom_descr[sc->sc_which].intr; 162 163 if (sc->sc_which == INTERNAL) 164 printf (": On-board at %p\n", (void*)ia->ia_addr); 165 else 166 printf (": External at %p\n", (void*)ia->ia_addr); 167 168 cf = config_search (NULL, self, ia); 169 if (cf) { 170 config_attach(self, cf, ia, NULL); 171 } else { 172 printf ("%s: no matching device; ignored.\n", 173 self->dv_xname); 174 } 175 176 return; 177 } 178
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