if_ep_isa.c revision 1.20
1 /* $NetBSD: if_ep_isa.c,v 1.20 1998/06/09 07:25:02 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 int ep_isa_probe __P((struct device *, struct cfdata *, void *)); 118 void ep_isa_attach __P((struct device *, struct device *, void *)); 119 120 struct cfattach ep_isa_ca = { 121 sizeof(struct ep_softc), ep_isa_probe, ep_isa_attach 122 }; 123 124 static void epaddcard __P((int, int, int, int)); 125 126 /* 127 * This keeps track of which ISAs have been through an ep probe sequence. 128 * A simple static variable isn't enough, since it's conceivable that 129 * a system might have more than one ISA bus. 130 * 131 * The "er_bus" member is the unit number of the parent ISA bus, e.g. "0" 132 * for "isa0". 133 */ 134 struct ep_isa_done_probe { 135 LIST_ENTRY(ep_isa_done_probe) er_link; 136 int er_bus; 137 }; 138 static LIST_HEAD(, ep_isa_done_probe) ep_isa_all_probes; 139 static int ep_isa_probes_initialized; 140 141 #define MAXEPCARDS 20 /* if you have more than 20, you lose */ 142 143 static struct epcard { 144 int bus; 145 int iobase; 146 int irq; 147 char available; 148 long model; 149 } epcards[MAXEPCARDS]; 150 static int nepcards; 151 152 static void 153 epaddcard(bus, iobase, irq, model) 154 int bus, iobase, irq, model; 155 { 156 157 if (nepcards >= MAXEPCARDS) 158 return; 159 epcards[nepcards].bus = bus; 160 epcards[nepcards].iobase = iobase; 161 epcards[nepcards].irq = (irq == 2) ? 9 : irq; 162 epcards[nepcards].model = model; 163 epcards[nepcards].available = 1; 164 nepcards++; 165 } 166 167 /* 168 * 3c509 cards on the ISA bus are probed in ethernet address order. 169 * The probe sequence requires careful orchestration, and we'd like 170 * like to allow the irq and base address to be wildcarded. So, we 171 * probe all the cards the first time epprobe() is called. On subsequent 172 * calls we look for matching cards. 173 */ 174 int 175 ep_isa_probe(parent, match, aux) 176 struct device *parent; 177 struct cfdata *match; 178 void *aux; 179 { 180 struct isa_attach_args *ia = aux; 181 bus_space_tag_t iot = ia->ia_iot; 182 bus_space_handle_t ioh, ioh2; 183 int slot, iobase, irq, i; 184 u_int16_t vendor, model; 185 struct ep_isa_done_probe *er; 186 int bus = parent->dv_unit; 187 188 if (ep_isa_probes_initialized == 0) { 189 LIST_INIT(&ep_isa_all_probes); 190 ep_isa_probes_initialized = 1; 191 } 192 193 /* 194 * Probe this bus if we haven't done so already. 195 */ 196 for (er = ep_isa_all_probes.lh_first; er != NULL; 197 er = er->er_link.le_next) 198 if (er->er_bus == parent->dv_unit) 199 goto bus_probed; 200 201 /* 202 * Mark this bus so we don't probe it again. 203 */ 204 er = (struct ep_isa_done_probe *) 205 malloc(sizeof(struct ep_isa_done_probe), M_DEVBUF, M_NOWAIT); 206 if (er == NULL) 207 panic("ep_isa_probe: can't allocate state storage"); 208 209 er->er_bus = bus; 210 LIST_INSERT_HEAD(&ep_isa_all_probes, er, er_link); 211 212 /* 213 * Map the Etherlink ID port for the probe sequence. 214 */ 215 if (bus_space_map(iot, ELINK_ID_PORT, 1, 0, &ioh)) { 216 printf("ep_isa_probe: can't map Etherlink ID port\n"); 217 return 0; 218 } 219 220 for (slot = 0; slot < MAXEPCARDS; slot++) { 221 elink_reset(iot, ioh, parent->dv_unit); 222 elink_idseq(iot, ioh, ELINK_509_POLY); 223 224 /* Untag all the adapters so they will talk to us. */ 225 if (slot == 0) 226 bus_space_write_1(iot, ioh, 0, TAG_ADAPTER + 0); 227 228 vendor = htons(epreadeeprom(iot, ioh, EEPROM_MFG_ID)); 229 if (vendor != MFG_ID) 230 continue; 231 232 model = htons(epreadeeprom(iot, ioh, EEPROM_PROD_ID)); 233 /* 234 * XXX: Add a new product id to check for other cards 235 * (3c515?) and fix the check in ep_isa_attach. 236 */ 237 if ((model & 0xfff0) != PROD_ID_3C509) { 238 #ifndef trusted 239 printf( 240 "ep_isa_probe: ignoring model %04x\n", model); 241 #endif 242 continue; 243 } 244 245 iobase = epreadeeprom(iot, ioh, EEPROM_ADDR_CFG); 246 iobase = (iobase & 0x1f) * 0x10 + 0x200; 247 248 irq = epreadeeprom(iot, ioh, EEPROM_RESOURCE_CFG); 249 irq >>= 12; 250 251 /* so card will not respond to contention again */ 252 bus_space_write_1(iot, ioh, 0, TAG_ADAPTER + 1); 253 254 /* 255 * XXX: this should probably not be done here 256 * because it enables the drq/irq lines from 257 * the board. Perhaps it should be done after 258 * we have checked for irq/drq collisions? 259 */ 260 bus_space_write_1(iot, ioh, 0, ACTIVATE_ADAPTER_TO_CONFIG); 261 262 /* 263 * Don't attach a 3c509 in PnP mode. 264 */ 265 if ((model & 0xfff0) == PROD_ID_3C509) { 266 if (bus_space_map(iot, iobase, 1, 0, &ioh2)) { 267 printf( 268 "ep_isa_probe: can't map Etherlink iobase\n"); 269 return 0; 270 } 271 if (bus_space_read_2(iot, ioh2, EP_W0_EEPROM_COMMAND) 272 & EEPROM_TST_MODE) { 273 printf( 274 "3COM 3C509 Ethernet card in PnP mode\n"); 275 continue; 276 } 277 bus_space_unmap(iot, ioh2, 1); 278 } 279 epaddcard(bus, iobase, irq, model); 280 } 281 /* XXX should we sort by ethernet address? */ 282 283 bus_space_unmap(iot, ioh, 1); 284 285 bus_probed: 286 287 for (i = 0; i < nepcards; i++) { 288 if (epcards[i].bus != bus) 289 continue; 290 if (epcards[i].available == 0) 291 continue; 292 if (ia->ia_iobase != IOBASEUNK && 293 ia->ia_iobase != epcards[i].iobase) 294 continue; 295 if (ia->ia_irq != IRQUNK && 296 ia->ia_irq != epcards[i].irq) 297 continue; 298 goto good; 299 } 300 return 0; 301 302 good: 303 epcards[i].available = 0; 304 ia->ia_iobase = epcards[i].iobase; 305 ia->ia_irq = epcards[i].irq; 306 ia->ia_iosize = 0x10; 307 ia->ia_msize = 0; 308 ia->ia_aux = (void *)epcards[i].model; 309 return 1; 310 } 311 312 void 313 ep_isa_attach(parent, self, aux) 314 struct device *parent, *self; 315 void *aux; 316 { 317 struct ep_softc *sc = (void *)self; 318 struct isa_attach_args *ia = aux; 319 bus_space_tag_t iot = ia->ia_iot; 320 bus_space_handle_t ioh; 321 int chipset; 322 323 /* Map i/o space. */ 324 if (bus_space_map(iot, ia->ia_iobase, ia->ia_iosize, 0, &ioh)) { 325 printf(": can't map i/o space\n"); 326 return; 327 } 328 329 sc->sc_iot = iot; 330 sc->sc_ioh = ioh; 331 sc->bustype = EP_BUS_ISA; 332 333 sc->enable = NULL; 334 sc->disable = NULL; 335 sc->enabled = 1; 336 337 chipset = (int)(long)ia->ia_aux; 338 if ((chipset & 0xfff0) == PROD_ID_3C509) { 339 printf(": 3Com 3C509 Ethernet\n"); 340 epconfig(sc, EP_CHIPSET_3C509, NULL); 341 } else { 342 /* 343 * XXX: Maybe a 3c515, but the check in ep_isa_probe looks 344 * at the moment only for a 3c509. 345 */ 346 printf(": unknown 3Com Ethernet card: %04x\n", chipset); 347 epconfig(sc, EP_CHIPSET_UNKNOWN, NULL); 348 } 349 350 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 351 IPL_NET, epintr, sc); 352 } 353
Indexes created Fri Oct 17 23:09:53 GMT 2025