if_ep_isa.c revision 1.21
1 /* $NetBSD: if_ep_isa.c,v 1.21 1998/07/05 00:51:21 jonathan Exp $ */ 2 3 /*- 4 * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * Copyright (c) 1997 Jonathan Stone <jonathan (at) NetBSD.org> 42 * Copyright (c) 1994 Herb Peyerl <hpeyerl (at) beer.org> 43 * All rights reserved. 44 * 45 * Redistribution and use in source and binary forms, with or without 46 * modification, are permitted provided that the following conditions 47 * are met: 48 * 1. Redistributions of source code must retain the above copyright 49 * notice, this list of conditions and the following disclaimer. 50 * 2. Redistributions in binary form must reproduce the above copyright 51 * notice, this list of conditions and the following disclaimer in the 52 * documentation and/or other materials provided with the distribution. 53 * 3. All advertising materials mentioning features or use of this software 54 * must display the following acknowledgement: 55 * This product includes software developed by Herb Peyerl. 56 * 4. The name of Herb Peyerl may not be used to endorse or promote products 57 * derived from this software without specific prior written permission. 58 * 59 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 60 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 61 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 62 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 63 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 64 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 65 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 66 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 67 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 68 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 69 */ 70 71 #include "opt_inet.h" 72 #include "bpfilter.h" 73 74 #include <sys/param.h> 75 #include <sys/systm.h> 76 #include <sys/mbuf.h> 77 #include <sys/socket.h> 78 #include <sys/ioctl.h> 79 #include <sys/errno.h> 80 #include <sys/syslog.h> 81 #include <sys/select.h> 82 #include <sys/device.h> 83 #include <sys/queue.h> 84 85 #include <net/if.h> 86 #include <net/if_dl.h> 87 #include <net/if_ether.h> 88 #include <net/if_media.h> 89 90 #ifdef INET 91 #include <netinet/in.h> 92 #include <netinet/in_systm.h> 93 #include <netinet/in_var.h> 94 #include <netinet/ip.h> 95 #include <netinet/if_inarp.h> 96 #endif 97 98 #ifdef NS 99 #include <netns/ns.h> 100 #include <netns/ns_if.h> 101 #endif 102 103 #if NBPFILTER > 0 104 #include <net/bpf.h> 105 #include <net/bpfdesc.h> 106 #endif 107 108 #include <machine/cpu.h> 109 #include <machine/bus.h> 110 #include <machine/intr.h> 111 112 #include <dev/ic/elink3var.h> 113 #include <dev/ic/elink3reg.h> 114 115 #include <dev/isa/isavar.h> 116 #include <dev/isa/elink.h> 117 118 int ep_isa_probe __P((struct device *, struct cfdata *, void *)); 119 void ep_isa_attach __P((struct device *, struct device *, void *)); 120 121 struct cfattach ep_isa_ca = { 122 sizeof(struct ep_softc), ep_isa_probe, ep_isa_attach 123 }; 124 125 static void epaddcard __P((int, int, int, int)); 126 127 /* 128 * This keeps track of which ISAs have been through an ep probe sequence. 129 * A simple static variable isn't enough, since it's conceivable that 130 * a system might have more than one ISA bus. 131 * 132 * The "er_bus" member is the unit number of the parent ISA bus, e.g. "0" 133 * for "isa0". 134 */ 135 struct ep_isa_done_probe { 136 LIST_ENTRY(ep_isa_done_probe) er_link; 137 int er_bus; 138 }; 139 static LIST_HEAD(, ep_isa_done_probe) ep_isa_all_probes; 140 static int ep_isa_probes_initialized; 141 142 #define MAXEPCARDS 20 /* if you have more than 20, you lose */ 143 144 static struct epcard { 145 int bus; 146 int iobase; 147 int irq; 148 char available; 149 long model; 150 } epcards[MAXEPCARDS]; 151 static int nepcards; 152 153 static void 154 epaddcard(bus, iobase, irq, model) 155 int bus, iobase, irq, model; 156 { 157 158 if (nepcards >= MAXEPCARDS) 159 return; 160 epcards[nepcards].bus = bus; 161 epcards[nepcards].iobase = iobase; 162 epcards[nepcards].irq = (irq == 2) ? 9 : irq; 163 epcards[nepcards].model = model; 164 epcards[nepcards].available = 1; 165 nepcards++; 166 } 167 168 /* 169 * 3c509 cards on the ISA bus are probed in ethernet address order. 170 * The probe sequence requires careful orchestration, and we'd like 171 * like to allow the irq and base address to be wildcarded. So, we 172 * probe all the cards the first time epprobe() is called. On subsequent 173 * calls we look for matching cards. 174 */ 175 int 176 ep_isa_probe(parent, match, aux) 177 struct device *parent; 178 struct cfdata *match; 179 void *aux; 180 { 181 struct isa_attach_args *ia = aux; 182 bus_space_tag_t iot = ia->ia_iot; 183 bus_space_handle_t ioh, ioh2; 184 int slot, iobase, irq, i; 185 u_int16_t vendor, model; 186 struct ep_isa_done_probe *er; 187 int bus = parent->dv_unit; 188 189 if (ep_isa_probes_initialized == 0) { 190 LIST_INIT(&ep_isa_all_probes); 191 ep_isa_probes_initialized = 1; 192 } 193 194 /* 195 * Probe this bus if we haven't done so already. 196 */ 197 for (er = ep_isa_all_probes.lh_first; er != NULL; 198 er = er->er_link.le_next) 199 if (er->er_bus == parent->dv_unit) 200 goto bus_probed; 201 202 /* 203 * Mark this bus so we don't probe it again. 204 */ 205 er = (struct ep_isa_done_probe *) 206 malloc(sizeof(struct ep_isa_done_probe), M_DEVBUF, M_NOWAIT); 207 if (er == NULL) 208 panic("ep_isa_probe: can't allocate state storage"); 209 210 er->er_bus = bus; 211 LIST_INSERT_HEAD(&ep_isa_all_probes, er, er_link); 212 213 /* 214 * Map the Etherlink ID port for the probe sequence. 215 */ 216 if (bus_space_map(iot, ELINK_ID_PORT, 1, 0, &ioh)) { 217 printf("ep_isa_probe: can't map Etherlink ID port\n"); 218 return 0; 219 } 220 221 for (slot = 0; slot < MAXEPCARDS; slot++) { 222 elink_reset(iot, ioh, parent->dv_unit); 223 elink_idseq(iot, ioh, ELINK_509_POLY); 224 225 /* Untag all the adapters so they will talk to us. */ 226 if (slot == 0) 227 bus_space_write_1(iot, ioh, 0, TAG_ADAPTER + 0); 228 229 vendor = htons(epreadeeprom(iot, ioh, EEPROM_MFG_ID)); 230 if (vendor != MFG_ID) 231 continue; 232 233 model = htons(epreadeeprom(iot, ioh, EEPROM_PROD_ID)); 234 /* 235 * XXX: Add a new product id to check for other cards 236 * (3c515?) and fix the check in ep_isa_attach. 237 */ 238 if ((model & 0xfff0) != PROD_ID_3C509) { 239 #ifndef trusted 240 printf( 241 "ep_isa_probe: ignoring model %04x\n", model); 242 #endif 243 continue; 244 } 245 246 iobase = epreadeeprom(iot, ioh, EEPROM_ADDR_CFG); 247 iobase = (iobase & 0x1f) * 0x10 + 0x200; 248 249 irq = epreadeeprom(iot, ioh, EEPROM_RESOURCE_CFG); 250 irq >>= 12; 251 252 /* so card will not respond to contention again */ 253 bus_space_write_1(iot, ioh, 0, TAG_ADAPTER + 1); 254 255 /* 256 * XXX: this should probably not be done here 257 * because it enables the drq/irq lines from 258 * the board. Perhaps it should be done after 259 * we have checked for irq/drq collisions? 260 */ 261 bus_space_write_1(iot, ioh, 0, ACTIVATE_ADAPTER_TO_CONFIG); 262 263 /* 264 * Don't attach a 3c509 in PnP mode. 265 */ 266 if ((model & 0xfff0) == PROD_ID_3C509) { 267 if (bus_space_map(iot, iobase, 1, 0, &ioh2)) { 268 printf( 269 "ep_isa_probe: can't map Etherlink iobase\n"); 270 return 0; 271 } 272 if (bus_space_read_2(iot, ioh2, EP_W0_EEPROM_COMMAND) 273 & EEPROM_TST_MODE) { 274 printf( 275 "3COM 3C509 Ethernet card in PnP mode\n"); 276 continue; 277 } 278 bus_space_unmap(iot, ioh2, 1); 279 } 280 epaddcard(bus, iobase, irq, model); 281 } 282 /* XXX should we sort by ethernet address? */ 283 284 bus_space_unmap(iot, ioh, 1); 285 286 bus_probed: 287 288 for (i = 0; i < nepcards; i++) { 289 if (epcards[i].bus != bus) 290 continue; 291 if (epcards[i].available == 0) 292 continue; 293 if (ia->ia_iobase != IOBASEUNK && 294 ia->ia_iobase != epcards[i].iobase) 295 continue; 296 if (ia->ia_irq != IRQUNK && 297 ia->ia_irq != epcards[i].irq) 298 continue; 299 goto good; 300 } 301 return 0; 302 303 good: 304 epcards[i].available = 0; 305 ia->ia_iobase = epcards[i].iobase; 306 ia->ia_irq = epcards[i].irq; 307 ia->ia_iosize = 0x10; 308 ia->ia_msize = 0; 309 ia->ia_aux = (void *)epcards[i].model; 310 return 1; 311 } 312 313 void 314 ep_isa_attach(parent, self, aux) 315 struct device *parent, *self; 316 void *aux; 317 { 318 struct ep_softc *sc = (void *)self; 319 struct isa_attach_args *ia = aux; 320 bus_space_tag_t iot = ia->ia_iot; 321 bus_space_handle_t ioh; 322 int chipset; 323 324 /* Map i/o space. */ 325 if (bus_space_map(iot, ia->ia_iobase, ia->ia_iosize, 0, &ioh)) { 326 printf(": can't map i/o space\n"); 327 return; 328 } 329 330 sc->sc_iot = iot; 331 sc->sc_ioh = ioh; 332 sc->bustype = EP_BUS_ISA; 333 334 sc->enable = NULL; 335 sc->disable = NULL; 336 sc->enabled = 1; 337 338 chipset = (int)(long)ia->ia_aux; 339 if ((chipset & 0xfff0) == PROD_ID_3C509) { 340 printf(": 3Com 3C509 Ethernet\n"); 341 epconfig(sc, EP_CHIPSET_3C509, NULL); 342 } else { 343 /* 344 * XXX: Maybe a 3c515, but the check in ep_isa_probe looks 345 * at the moment only for a 3c509. 346 */ 347 printf(": unknown 3Com Ethernet card: %04x\n", chipset); 348 epconfig(sc, EP_CHIPSET_UNKNOWN, NULL); 349 } 350 351 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 352 IPL_NET, epintr, sc); 353 } 354
Indexes created Wed Sep 24 15:09:51 GMT 2025