scsirom.c revision 1.9.6.1
1 /* $NetBSD: scsirom.c,v 1.9.6.1 2004/08/03 10:42:47 skrll 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/cdefs.h> 44 __KERNEL_RCSID(0, "$NetBSD: scsirom.c,v 1.9.6.1 2004/08/03 10:42:47 skrll Exp $"); 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/device.h> 49 50 #include <machine/bus.h> 51 #include <machine/cpu.h> 52 53 #include <arch/x68k/dev/intiovar.h> 54 #include <arch/x68k/dev/scsiromvar.h> 55 56 struct { 57 paddr_t addr, devaddr; 58 int intr; 59 const char id[7]; 60 } scsirom_descr[] = {{ 61 0x00fc0000, 0x00e96020, 108, "SCSIIN" 62 }, { 63 0x00ea0020, 0x00ea0000, 246, "SCSIEX" 64 }}; 65 66 #define SCSIROM_ID 0x24 67 68 /* 69 * autoconf stuff 70 */ 71 static int scsirom_find __P((struct device *, struct intio_attach_args *)); 72 static int scsirom_match __P((struct device *, struct cfdata *, void *)); 73 static void scsirom_attach __P((struct device *, struct device *, void *)); 74 75 CFATTACH_DECL(scsirom, sizeof(struct scsirom_softc), 76 scsirom_match, scsirom_attach, NULL, NULL); 77 78 static int 79 scsirom_find (parent, ia) 80 struct device *parent; 81 struct intio_attach_args *ia; 82 { 83 bus_space_handle_t ioh; 84 char buf[10]; 85 int which; 86 int r = -1; 87 88 if (ia->ia_addr == scsirom_descr[INTERNAL].addr) 89 which = INTERNAL; 90 else if (ia->ia_addr == scsirom_descr[EXTERNAL].addr) 91 which = EXTERNAL; 92 else 93 return -1; 94 95 ia->ia_size = 0x1fe0; 96 if (intio_map_allocate_region (parent, ia, INTIO_MAP_TESTONLY)) 97 return -1; 98 99 if (bus_space_map (ia->ia_bst, ia->ia_addr, ia->ia_size, 0, &ioh) < 0) 100 return -1; 101 if (badaddr ((caddr_t)INTIO_ADDR(ia->ia_addr+SCSIROM_ID))) { 102 bus_space_unmap (ia->ia_bst, ioh, ia->ia_size); 103 return -1; 104 } 105 bus_space_read_region_1 (ia->ia_bst, ioh, SCSIROM_ID, buf, 6); 106 if (memcmp(buf, scsirom_descr[which].id, 6) == 0) 107 r = which; 108 bus_space_unmap (ia->ia_bst, ioh, ia->ia_size); 109 110 return r; 111 } 112 113 static int 114 scsirom_match(parent, cf, aux) 115 struct device *parent; 116 struct cfdata *cf; 117 void *aux; 118 { 119 struct intio_attach_args *ia = aux; 120 int r; 121 122 if (strcmp (ia->ia_name, "scsirom") != 0) 123 return 0; 124 125 if (ia->ia_addr == INTIOCF_ADDR_DEFAULT) { 126 ia->ia_addr = scsirom_descr[0].addr; 127 r = scsirom_find (parent, ia); 128 if (r == INTERNAL) 129 return 1; 130 ia->ia_addr = scsirom_descr[1].addr; 131 r = scsirom_find (parent, ia); 132 if (r == EXTERNAL) 133 return 1; 134 return 0; 135 } else if (scsirom_find(parent, ia) >= 0) 136 return 1; 137 else 138 return 0; 139 } 140 141 static void 142 scsirom_attach(parent, self, aux) 143 struct device *parent, *self; 144 void *aux; 145 { 146 struct scsirom_softc *sc = (struct scsirom_softc *)self; 147 struct intio_attach_args *ia = aux; 148 int r; 149 struct cfdata *cf; 150 151 sc->sc_addr = ia->ia_addr; 152 sc->sc_which = scsirom_find (parent, ia); 153 #ifdef DIAGNOSTIC 154 if (sc->sc_which < 0) 155 panic ("SCSIROM curruption??"); 156 #endif 157 r = intio_map_allocate_region (parent, ia, INTIO_MAP_ALLOCATE); 158 #ifdef DIAGNOSTIC 159 if (r) 160 panic ("IO map for SCSIROM corruption??"); 161 #endif 162 163 ia->ia_addr = scsirom_descr[sc->sc_which].devaddr; 164 if (ia->ia_intr == INTIOCF_INTR_DEFAULT) 165 ia->ia_intr = scsirom_descr[sc->sc_which].intr; 166 167 if (sc->sc_which == INTERNAL) 168 printf (": On-board at %p\n", (void*)ia->ia_addr); 169 else 170 printf (": External at %p\n", (void*)ia->ia_addr); 171 172 cf = config_search (NULL, self, ia); 173 if (cf) { 174 config_attach(self, cf, ia, NULL); 175 } else { 176 printf ("%s: no matching device; ignored.\n", 177 self->dv_xname); 178 } 179 180 return; 181 } 182
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