scsirom.c revision 1.6.12.1
1 /* $NetBSD: scsirom.c,v 1.6.12.1 2002/10/18 02:40:48 nathanw 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 the NetBSD 21 * Foundation, Inc. and its contributors. 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 /* 39 * SCSI BIOS ROM. 40 * Used to probe the board. 41 */ 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/device.h> 46 47 #include <machine/bus.h> 48 #include <machine/cpu.h> 49 50 #include <arch/x68k/dev/intiovar.h> 51 #include <arch/x68k/dev/scsiromvar.h> 52 53 struct { 54 paddr_t addr, devaddr; 55 int intr; 56 const char id[7]; 57 } scsirom_descr[] = {{ 58 0x00fc0000, 0x00e96020, 108, "SCSIIN" 59 }, { 60 0x00ea0020, 0x00ea0000, 246, "SCSIEX" 61 }}; 62 63 #define SCSIROM_ID 0x24 64 65 /* 66 * autoconf stuff 67 */ 68 static int scsirom_find __P((struct device *, struct intio_attach_args *)); 69 static int scsirom_match __P((struct device *, struct cfdata *, void *)); 70 static void scsirom_attach __P((struct device *, struct device *, void *)); 71 72 CFATTACH_DECL(scsirom, sizeof(struct scsirom_softc), 73 scsirom_match, scsirom_attach, NULL, NULL); 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 bus_space_read_region_1 (ia->ia_bst, ioh, SCSIROM_ID, buf, 6); 103 if (memcmp(buf, scsirom_descr[which].id, 6) == 0) 104 r = which; 105 bus_space_unmap (ia->ia_bst, ioh, ia->ia_size); 106 107 return r; 108 } 109 110 static int 111 scsirom_match(parent, cf, aux) 112 struct device *parent; 113 struct cfdata *cf; 114 void *aux; 115 { 116 struct intio_attach_args *ia = aux; 117 int r; 118 119 if (strcmp (ia->ia_name, "scsirom") != 0) 120 return 0; 121 122 if (ia->ia_addr == INTIOCF_ADDR_DEFAULT) { 123 ia->ia_addr = scsirom_descr[0].addr; 124 r = scsirom_find (parent, ia); 125 if (r == INTERNAL) 126 return 1; 127 ia->ia_addr = scsirom_descr[1].addr; 128 r = scsirom_find (parent, ia); 129 if (r == EXTERNAL) 130 return 1; 131 return 0; 132 } else if (scsirom_find(parent, ia) >= 0) 133 return 1; 134 else 135 return 0; 136 } 137 138 static void 139 scsirom_attach(parent, self, aux) 140 struct device *parent, *self; 141 void *aux; 142 { 143 struct scsirom_softc *sc = (struct scsirom_softc *)self; 144 struct intio_attach_args *ia = aux; 145 int r; 146 struct cfdata *cf; 147 148 sc->sc_addr = ia->ia_addr; 149 sc->sc_which = scsirom_find (parent, ia); 150 #ifdef DIAGNOSTIC 151 if (sc->sc_which < 0) 152 panic ("SCSIROM curruption??"); 153 #endif 154 r = intio_map_allocate_region (parent, ia, INTIO_MAP_ALLOCATE); 155 #ifdef DIAGNOSTIC 156 if (r) 157 panic ("IO map for SCSIROM corruption??"); 158 #endif 159 160 ia->ia_addr = scsirom_descr[sc->sc_which].devaddr; 161 if (ia->ia_intr == INTIOCF_INTR_DEFAULT) 162 ia->ia_intr = scsirom_descr[sc->sc_which].intr; 163 164 if (sc->sc_which == INTERNAL) 165 printf (": On-board at %p\n", (void*)ia->ia_addr); 166 else 167 printf (": External at %p\n", (void*)ia->ia_addr); 168 169 cf = config_search (NULL, self, ia); 170 if (cf) { 171 config_attach(self, cf, ia, NULL); 172 } else { 173 printf ("%s: no matching device; ignored.\n", 174 self->dv_xname); 175 } 176 177 return; 178 } 179
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