if_ep_isa.c revision 1.19
1 /* $NetBSD: if_ep_isa.c,v 1.19 1997/10/20 18:43:12 thorpej 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 "bpfilter.h" 72 73 #include <sys/param.h> 74 #include <sys/systm.h> 75 #include <sys/mbuf.h> 76 #include <sys/socket.h> 77 #include <sys/ioctl.h> 78 #include <sys/errno.h> 79 #include <sys/syslog.h> 80 #include <sys/select.h> 81 #include <sys/device.h> 82 #include <sys/queue.h> 83 84 #include <net/if.h> 85 #include <net/if_dl.h> 86 #include <net/if_ether.h> 87 #include <net/if_media.h> 88 89 #ifdef INET 90 #include <netinet/in.h> 91 #include <netinet/in_systm.h> 92 #include <netinet/in_var.h> 93 #include <netinet/ip.h> 94 #include <netinet/if_inarp.h> 95 #endif 96 97 #ifdef NS 98 #include <netns/ns.h> 99 #include <netns/ns_if.h> 100 #endif 101 102 #if NBPFILTER > 0 103 #include <net/bpf.h> 104 #include <net/bpfdesc.h> 105 #endif 106 107 #include <machine/cpu.h> 108 #include <machine/bus.h> 109 #include <machine/intr.h> 110 111 #include <dev/ic/elink3var.h> 112 #include <dev/ic/elink3reg.h> 113 114 #include <dev/isa/isavar.h> 115 #include <dev/isa/elink.h> 116 117 #ifdef __BROKEN_INDIRECT_CONFIG 118 int ep_isa_probe __P((struct device *, void *, void *)); 119 #else 120 int ep_isa_probe __P((struct device *, struct cfdata *, void *)); 121 #endif 122 void ep_isa_attach __P((struct device *, struct device *, void *)); 123 124 struct cfattach ep_isa_ca = { 125 sizeof(struct ep_softc), ep_isa_probe, ep_isa_attach 126 }; 127 128 static void epaddcard __P((int, int, int, int)); 129 130 /* 131 * This keeps track of which ISAs have been through an ep probe sequence. 132 * A simple static variable isn't enough, since it's conceivable that 133 * a system might have more than one ISA bus. 134 * 135 * The "er_bus" member is the unit number of the parent ISA bus, e.g. "0" 136 * for "isa0". 137 */ 138 struct ep_isa_done_probe { 139 LIST_ENTRY(ep_isa_done_probe) er_link; 140 int er_bus; 141 }; 142 static LIST_HEAD(, ep_isa_done_probe) ep_isa_all_probes; 143 static int ep_isa_probes_initialized; 144 145 #define MAXEPCARDS 20 /* if you have more than 20, you lose */ 146 147 static struct epcard { 148 int bus; 149 int iobase; 150 int irq; 151 char available; 152 long model; 153 } epcards[MAXEPCARDS]; 154 static int nepcards; 155 156 static void 157 epaddcard(bus, iobase, irq, model) 158 int bus, iobase, irq, model; 159 { 160 161 if (nepcards >= MAXEPCARDS) 162 return; 163 epcards[nepcards].bus = bus; 164 epcards[nepcards].iobase = iobase; 165 epcards[nepcards].irq = (irq == 2) ? 9 : irq; 166 epcards[nepcards].model = model; 167 epcards[nepcards].available = 1; 168 nepcards++; 169 } 170 171 /* 172 * 3c509 cards on the ISA bus are probed in ethernet address order. 173 * The probe sequence requires careful orchestration, and we'd like 174 * like to allow the irq and base address to be wildcarded. So, we 175 * probe all the cards the first time epprobe() is called. On subsequent 176 * calls we look for matching cards. 177 */ 178 int 179 ep_isa_probe(parent, match, aux) 180 struct device *parent; 181 #ifdef __BROKEN_INDIRECT_CONFIG 182 void *match; 183 #else 184 struct cfdata *match; 185 #endif 186 void *aux; 187 { 188 struct isa_attach_args *ia = aux; 189 bus_space_tag_t iot = ia->ia_iot; 190 bus_space_handle_t ioh, ioh2; 191 int slot, iobase, irq, i; 192 u_int16_t vendor, model; 193 struct ep_isa_done_probe *er; 194 int bus = parent->dv_unit; 195 196 if (ep_isa_probes_initialized == 0) { 197 LIST_INIT(&ep_isa_all_probes); 198 ep_isa_probes_initialized = 1; 199 } 200 201 /* 202 * Probe this bus if we haven't done so already. 203 */ 204 for (er = ep_isa_all_probes.lh_first; er != NULL; 205 er = er->er_link.le_next) 206 if (er->er_bus == parent->dv_unit) 207 goto bus_probed; 208 209 /* 210 * Mark this bus so we don't probe it again. 211 */ 212 er = (struct ep_isa_done_probe *) 213 malloc(sizeof(struct ep_isa_done_probe), M_DEVBUF, M_NOWAIT); 214 if (er == NULL) 215 panic("ep_isa_probe: can't allocate state storage"); 216 217 er->er_bus = bus; 218 LIST_INSERT_HEAD(&ep_isa_all_probes, er, er_link); 219 220 /* 221 * Map the Etherlink ID port for the probe sequence. 222 */ 223 if (bus_space_map(iot, ELINK_ID_PORT, 1, 0, &ioh)) { 224 printf("ep_isa_probe: can't map Etherlink ID port\n"); 225 return 0; 226 } 227 228 for (slot = 0; slot < MAXEPCARDS; slot++) { 229 elink_reset(iot, ioh, parent->dv_unit); 230 elink_idseq(iot, ioh, ELINK_509_POLY); 231 232 /* Untag all the adapters so they will talk to us. */ 233 if (slot == 0) 234 bus_space_write_1(iot, ioh, 0, TAG_ADAPTER + 0); 235 236 vendor = htons(epreadeeprom(iot, ioh, EEPROM_MFG_ID)); 237 if (vendor != MFG_ID) 238 continue; 239 240 model = htons(epreadeeprom(iot, ioh, EEPROM_PROD_ID)); 241 /* 242 * XXX: Add a new product id to check for other cards 243 * (3c515?) and fix the check in ep_isa_attach. 244 */ 245 if ((model & 0xfff0) != PROD_ID_3C509) { 246 #ifndef trusted 247 printf( 248 "ep_isa_probe: ignoring model %04x\n", model); 249 #endif 250 continue; 251 } 252 253 iobase = epreadeeprom(iot, ioh, EEPROM_ADDR_CFG); 254 iobase = (iobase & 0x1f) * 0x10 + 0x200; 255 256 irq = epreadeeprom(iot, ioh, EEPROM_RESOURCE_CFG); 257 irq >>= 12; 258 259 /* so card will not respond to contention again */ 260 bus_space_write_1(iot, ioh, 0, TAG_ADAPTER + 1); 261 262 /* 263 * XXX: this should probably not be done here 264 * because it enables the drq/irq lines from 265 * the board. Perhaps it should be done after 266 * we have checked for irq/drq collisions? 267 */ 268 bus_space_write_1(iot, ioh, 0, ACTIVATE_ADAPTER_TO_CONFIG); 269 270 /* 271 * Don't attach a 3c509 in PnP mode. 272 */ 273 if ((model & 0xfff0) == PROD_ID_3C509) { 274 if (bus_space_map(iot, iobase, 1, 0, &ioh2)) { 275 printf( 276 "ep_isa_probe: can't map Etherlink iobase\n"); 277 return 0; 278 } 279 if (bus_space_read_2(iot, ioh2, EP_W0_EEPROM_COMMAND) 280 & EEPROM_TST_MODE) { 281 printf( 282 "3COM 3C509 Ethernet card in PnP mode\n"); 283 continue; 284 } 285 bus_space_unmap(iot, ioh2, 1); 286 } 287 epaddcard(bus, iobase, irq, model); 288 } 289 /* XXX should we sort by ethernet address? */ 290 291 bus_space_unmap(iot, ioh, 1); 292 293 bus_probed: 294 295 for (i = 0; i < nepcards; i++) { 296 if (epcards[i].bus != bus) 297 continue; 298 if (epcards[i].available == 0) 299 continue; 300 if (ia->ia_iobase != IOBASEUNK && 301 ia->ia_iobase != epcards[i].iobase) 302 continue; 303 if (ia->ia_irq != IRQUNK && 304 ia->ia_irq != epcards[i].irq) 305 continue; 306 goto good; 307 } 308 return 0; 309 310 good: 311 epcards[i].available = 0; 312 ia->ia_iobase = epcards[i].iobase; 313 ia->ia_irq = epcards[i].irq; 314 ia->ia_iosize = 0x10; 315 ia->ia_msize = 0; 316 ia->ia_aux = (void *)epcards[i].model; 317 return 1; 318 } 319 320 void 321 ep_isa_attach(parent, self, aux) 322 struct device *parent, *self; 323 void *aux; 324 { 325 struct ep_softc *sc = (void *)self; 326 struct isa_attach_args *ia = aux; 327 bus_space_tag_t iot = ia->ia_iot; 328 bus_space_handle_t ioh; 329 int chipset; 330 331 /* Map i/o space. */ 332 if (bus_space_map(iot, ia->ia_iobase, ia->ia_iosize, 0, &ioh)) { 333 printf(": can't map i/o space\n"); 334 return; 335 } 336 337 sc->sc_iot = iot; 338 sc->sc_ioh = ioh; 339 sc->bustype = EP_BUS_ISA; 340 341 sc->enable = NULL; 342 sc->disable = NULL; 343 sc->enabled = 1; 344 345 chipset = (int)(long)ia->ia_aux; 346 if ((chipset & 0xfff0) == PROD_ID_3C509) { 347 printf(": 3Com 3C509 Ethernet\n"); 348 epconfig(sc, EP_CHIPSET_3C509, NULL); 349 } else { 350 /* 351 * XXX: Maybe a 3c515, but the check in ep_isa_probe looks 352 * at the moment only for a 3c509. 353 */ 354 printf(": unknown 3Com Ethernet card: %04x\n", chipset); 355 epconfig(sc, EP_CHIPSET_UNKNOWN, NULL); 356 } 357 358 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 359 IPL_NET, epintr, sc); 360 } 361
Indexes created Fri Sep 26 20:09:58 GMT 2025