if_ep_isa.c revision 1.17
1 /* $NetBSD: if_ep_isa.c,v 1.17 1997/10/14 21:32:48 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 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 #ifdef __BROKEN_INDIRECT_CONFIG 119 int ep_isa_probe __P((struct device *, void *, void *)); 120 #else 121 int ep_isa_probe __P((struct device *, struct cfdata *, void *)); 122 #endif 123 void ep_isa_attach __P((struct device *, struct device *, void *)); 124 125 struct cfattach ep_isa_ca = { 126 sizeof(struct ep_softc), ep_isa_probe, ep_isa_attach 127 }; 128 129 static void epaddcard __P((int, int, int, int)); 130 131 /* 132 * This keeps track of which ISAs have been through an ep probe sequence. 133 * A simple static variable isn't enough, since it's conceivable that 134 * a system might have more than one ISA bus. 135 * 136 * The "er_bus" member is the unit number of the parent ISA bus, e.g. "0" 137 * for "isa0". 138 */ 139 struct ep_isa_done_probe { 140 LIST_ENTRY(ep_isa_done_probe) er_link; 141 int er_bus; 142 }; 143 static LIST_HEAD(, ep_isa_done_probe) ep_isa_all_probes; 144 static int ep_isa_probes_initialized; 145 146 #define MAXEPCARDS 20 /* if you have more than 20, you lose */ 147 148 static struct epcard { 149 int bus; 150 int iobase; 151 int irq; 152 char available; 153 long model; 154 } epcards[MAXEPCARDS]; 155 static int nepcards; 156 157 static void 158 epaddcard(bus, iobase, irq, model) 159 int bus, iobase, irq, model; 160 { 161 162 if (nepcards >= MAXEPCARDS) 163 return; 164 epcards[nepcards].bus = bus; 165 epcards[nepcards].iobase = iobase; 166 epcards[nepcards].irq = (irq == 2) ? 9 : irq; 167 epcards[nepcards].model = model; 168 epcards[nepcards].available = 1; 169 nepcards++; 170 } 171 172 /* 173 * 3c509 cards on the ISA bus are probed in ethernet address order. 174 * The probe sequence requires careful orchestration, and we'd like 175 * like to allow the irq and base address to be wildcarded. So, we 176 * probe all the cards the first time epprobe() is called. On subsequent 177 * calls we look for matching cards. 178 */ 179 int 180 ep_isa_probe(parent, match, aux) 181 struct device *parent; 182 #ifdef __BROKEN_INDIRECT_CONFIG 183 void *match; 184 #else 185 struct cfdata *match; 186 #endif 187 void *aux; 188 { 189 struct isa_attach_args *ia = aux; 190 bus_space_tag_t iot = ia->ia_iot; 191 bus_space_handle_t ioh, ioh2; 192 int slot, iobase, irq, i; 193 u_int16_t vendor, model; 194 struct ep_isa_done_probe *er; 195 int bus = parent->dv_unit; 196 197 if (ep_isa_probes_initialized == 0) { 198 LIST_INIT(&ep_isa_all_probes); 199 ep_isa_probes_initialized = 1; 200 } 201 202 /* 203 * Probe this bus if we haven't done so already. 204 */ 205 for (er = ep_isa_all_probes.lh_first; er != NULL; 206 er = er->er_link.le_next) 207 if (er->er_bus == parent->dv_unit) 208 goto bus_probed; 209 210 /* 211 * Mark this bus so we don't probe it again. 212 */ 213 er = (struct ep_isa_done_probe *) 214 malloc(sizeof(struct ep_isa_done_probe), M_DEVBUF, M_NOWAIT); 215 if (er == NULL) 216 panic("ep_isa_probe: can't allocate state storage"); 217 218 er->er_bus = bus; 219 LIST_INSERT_HEAD(&ep_isa_all_probes, er, er_link); 220 221 /* 222 * Map the Etherlink ID port for the probe sequence. 223 */ 224 if (bus_space_map(iot, ELINK_ID_PORT, 1, 0, &ioh)) { 225 printf("ep_isa_probe: can't map Etherlink ID port\n"); 226 return 0; 227 } 228 229 for (slot = 0; slot < MAXEPCARDS; slot++) { 230 elink_reset(iot, ioh, parent->dv_unit); 231 elink_idseq(iot, ioh, ELINK_509_POLY); 232 233 /* Untag all the adapters so they will talk to us. */ 234 if (slot == 0) 235 bus_space_write_1(iot, ioh, 0, TAG_ADAPTER + 0); 236 237 vendor = htons(epreadeeprom(iot, ioh, EEPROM_MFG_ID)); 238 if (vendor != MFG_ID) 239 continue; 240 241 model = htons(epreadeeprom(iot, ioh, EEPROM_PROD_ID)); 242 /* 243 * XXX: Add a new product id to check for other cards 244 * (3c515?) and fix the check in ep_isa_attach. 245 */ 246 if ((model & 0xfff0) != PROD_ID_3C509) { 247 #ifndef trusted 248 printf( 249 "ep_isa_probe: ignoring model %04x\n", model); 250 #endif 251 continue; 252 } 253 254 iobase = epreadeeprom(iot, ioh, EEPROM_ADDR_CFG); 255 iobase = (iobase & 0x1f) * 0x10 + 0x200; 256 257 irq = epreadeeprom(iot, ioh, EEPROM_RESOURCE_CFG); 258 irq >>= 12; 259 260 /* so card will not respond to contention again */ 261 bus_space_write_1(iot, ioh, 0, TAG_ADAPTER + 1); 262 263 /* 264 * XXX: this should probably not be done here 265 * because it enables the drq/irq lines from 266 * the board. Perhaps it should be done after 267 * we have checked for irq/drq collisions? 268 */ 269 bus_space_write_1(iot, ioh, 0, ACTIVATE_ADAPTER_TO_CONFIG); 270 271 /* 272 * Don't attach a 3c509 in PnP mode. 273 */ 274 if ((model & 0xfff0) == PROD_ID_3C509) { 275 if (bus_space_map(iot, iobase, 1, 0, &ioh2)) { 276 printf( 277 "ep_isa_probe: can't map Etherlink iobase\n"); 278 return 0; 279 } 280 if (bus_space_read_2(iot, ioh2, EP_W0_EEPROM_COMMAND) 281 & EEPROM_TST_MODE) { 282 printf( 283 "3COM 3C509 Ethernet card in PnP mode\n"); 284 continue; 285 } 286 bus_space_unmap(iot, ioh2, 1); 287 } 288 epaddcard(bus, iobase, irq, model); 289 } 290 /* XXX should we sort by ethernet address? */ 291 292 bus_space_unmap(iot, ioh, 1); 293 294 bus_probed: 295 296 for (i = 0; i < nepcards; i++) { 297 if (epcards[i].bus != bus) 298 continue; 299 if (epcards[i].available == 0) 300 continue; 301 if (ia->ia_iobase != IOBASEUNK && 302 ia->ia_iobase != epcards[i].iobase) 303 continue; 304 if (ia->ia_irq != IRQUNK && 305 ia->ia_irq != epcards[i].irq) 306 continue; 307 goto good; 308 } 309 return 0; 310 311 good: 312 epcards[i].available = 0; 313 ia->ia_iobase = epcards[i].iobase; 314 ia->ia_irq = epcards[i].irq; 315 ia->ia_iosize = 0x10; 316 ia->ia_msize = 0; 317 ia->ia_aux = (void *)epcards[i].model; 318 return 1; 319 } 320 321 void 322 ep_isa_attach(parent, self, aux) 323 struct device *parent, *self; 324 void *aux; 325 { 326 struct ep_softc *sc = (void *)self; 327 struct isa_attach_args *ia = aux; 328 bus_space_tag_t iot = ia->ia_iot; 329 bus_space_handle_t ioh; 330 int chipset; 331 332 /* Map i/o space. */ 333 if (bus_space_map(iot, ia->ia_iobase, ia->ia_iosize, 0, &ioh)) 334 panic("ep_isa_attach: can't map i/o space"); 335 336 sc->sc_iot = iot; 337 sc->sc_ioh = ioh; 338 sc->bustype = EP_BUS_ISA; 339 340 sc->enable = NULL; 341 sc->disable = NULL; 342 sc->enabled = 1; 343 344 chipset = (int)(long)ia->ia_aux; 345 if ((chipset & 0xfff0) == PROD_ID_3C509) { 346 printf(": 3Com 3C509 Ethernet\n"); 347 epconfig(sc, EP_CHIPSET_3C509, NULL); 348 } else { 349 /* 350 * XXX: Maybe a 3c515, but the check in ep_isa_probe looks 351 * at the moment only for a 3c509. 352 */ 353 printf(": unknown 3Com Ethernet card: %04x\n", chipset); 354 epconfig(sc, EP_CHIPSET_UNKNOWN, NULL); 355 } 356 357 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 358 IPL_NET, epintr, sc); 359 } 360
Indexes created Wed Sep 24 15:09:51 GMT 2025