if_ep_isa.c revision 1.22
1 /* $NetBSD: if_ep_isa.c,v 1.22 1998/07/05 06:49:13 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 "opt_ns.h" 73 #include "bpfilter.h" 74 75 #include <sys/param.h> 76 #include <sys/systm.h> 77 #include <sys/mbuf.h> 78 #include <sys/socket.h> 79 #include <sys/ioctl.h> 80 #include <sys/errno.h> 81 #include <sys/syslog.h> 82 #include <sys/select.h> 83 #include <sys/device.h> 84 #include <sys/queue.h> 85 86 #include <net/if.h> 87 #include <net/if_dl.h> 88 #include <net/if_ether.h> 89 #include <net/if_media.h> 90 91 #ifdef INET 92 #include <netinet/in.h> 93 #include <netinet/in_systm.h> 94 #include <netinet/in_var.h> 95 #include <netinet/ip.h> 96 #include <netinet/if_inarp.h> 97 #endif 98 99 #ifdef NS 100 #include <netns/ns.h> 101 #include <netns/ns_if.h> 102 #endif 103 104 #if NBPFILTER > 0 105 #include <net/bpf.h> 106 #include <net/bpfdesc.h> 107 #endif 108 109 #include <machine/cpu.h> 110 #include <machine/bus.h> 111 #include <machine/intr.h> 112 113 #include <dev/ic/elink3var.h> 114 #include <dev/ic/elink3reg.h> 115 116 #include <dev/isa/isavar.h> 117 #include <dev/isa/elink.h> 118 119 int ep_isa_probe __P((struct device *, struct cfdata *, void *)); 120 void ep_isa_attach __P((struct device *, struct device *, void *)); 121 122 struct cfattach ep_isa_ca = { 123 sizeof(struct ep_softc), ep_isa_probe, ep_isa_attach 124 }; 125 126 static void epaddcard __P((int, int, int, int)); 127 128 /* 129 * This keeps track of which ISAs have been through an ep probe sequence. 130 * A simple static variable isn't enough, since it's conceivable that 131 * a system might have more than one ISA bus. 132 * 133 * The "er_bus" member is the unit number of the parent ISA bus, e.g. "0" 134 * for "isa0". 135 */ 136 struct ep_isa_done_probe { 137 LIST_ENTRY(ep_isa_done_probe) er_link; 138 int er_bus; 139 }; 140 static LIST_HEAD(, ep_isa_done_probe) ep_isa_all_probes; 141 static int ep_isa_probes_initialized; 142 143 #define MAXEPCARDS 20 /* if you have more than 20, you lose */ 144 145 static struct epcard { 146 int bus; 147 int iobase; 148 int irq; 149 char available; 150 long model; 151 } epcards[MAXEPCARDS]; 152 static int nepcards; 153 154 static void 155 epaddcard(bus, iobase, irq, model) 156 int bus, iobase, irq, model; 157 { 158 159 if (nepcards >= MAXEPCARDS) 160 return; 161 epcards[nepcards].bus = bus; 162 epcards[nepcards].iobase = iobase; 163 epcards[nepcards].irq = (irq == 2) ? 9 : irq; 164 epcards[nepcards].model = model; 165 epcards[nepcards].available = 1; 166 nepcards++; 167 } 168 169 /* 170 * 3c509 cards on the ISA bus are probed in ethernet address order. 171 * The probe sequence requires careful orchestration, and we'd like 172 * like to allow the irq and base address to be wildcarded. So, we 173 * probe all the cards the first time epprobe() is called. On subsequent 174 * calls we look for matching cards. 175 */ 176 int 177 ep_isa_probe(parent, match, aux) 178 struct device *parent; 179 struct cfdata *match; 180 void *aux; 181 { 182 struct isa_attach_args *ia = aux; 183 bus_space_tag_t iot = ia->ia_iot; 184 bus_space_handle_t ioh, ioh2; 185 int slot, iobase, irq, i; 186 u_int16_t vendor, model; 187 struct ep_isa_done_probe *er; 188 int bus = parent->dv_unit; 189 190 if (ep_isa_probes_initialized == 0) { 191 LIST_INIT(&ep_isa_all_probes); 192 ep_isa_probes_initialized = 1; 193 } 194 195 /* 196 * Probe this bus if we haven't done so already. 197 */ 198 for (er = ep_isa_all_probes.lh_first; er != NULL; 199 er = er->er_link.le_next) 200 if (er->er_bus == parent->dv_unit) 201 goto bus_probed; 202 203 /* 204 * Mark this bus so we don't probe it again. 205 */ 206 er = (struct ep_isa_done_probe *) 207 malloc(sizeof(struct ep_isa_done_probe), M_DEVBUF, M_NOWAIT); 208 if (er == NULL) 209 panic("ep_isa_probe: can't allocate state storage"); 210 211 er->er_bus = bus; 212 LIST_INSERT_HEAD(&ep_isa_all_probes, er, er_link); 213 214 /* 215 * Map the Etherlink ID port for the probe sequence. 216 */ 217 if (bus_space_map(iot, ELINK_ID_PORT, 1, 0, &ioh)) { 218 printf("ep_isa_probe: can't map Etherlink ID port\n"); 219 return 0; 220 } 221 222 for (slot = 0; slot < MAXEPCARDS; slot++) { 223 elink_reset(iot, ioh, parent->dv_unit); 224 elink_idseq(iot, ioh, ELINK_509_POLY); 225 226 /* Untag all the adapters so they will talk to us. */ 227 if (slot == 0) 228 bus_space_write_1(iot, ioh, 0, TAG_ADAPTER + 0); 229 230 vendor = htons(epreadeeprom(iot, ioh, EEPROM_MFG_ID)); 231 if (vendor != MFG_ID) 232 continue; 233 234 model = htons(epreadeeprom(iot, ioh, EEPROM_PROD_ID)); 235 /* 236 * XXX: Add a new product id to check for other cards 237 * (3c515?) and fix the check in ep_isa_attach. 238 */ 239 if ((model & 0xfff0) != PROD_ID_3C509) { 240 #ifndef trusted 241 printf( 242 "ep_isa_probe: ignoring model %04x\n", model); 243 #endif 244 continue; 245 } 246 247 iobase = epreadeeprom(iot, ioh, EEPROM_ADDR_CFG); 248 iobase = (iobase & 0x1f) * 0x10 + 0x200; 249 250 irq = epreadeeprom(iot, ioh, EEPROM_RESOURCE_CFG); 251 irq >>= 12; 252 253 /* so card will not respond to contention again */ 254 bus_space_write_1(iot, ioh, 0, TAG_ADAPTER + 1); 255 256 /* 257 * XXX: this should probably not be done here 258 * because it enables the drq/irq lines from 259 * the board. Perhaps it should be done after 260 * we have checked for irq/drq collisions? 261 */ 262 bus_space_write_1(iot, ioh, 0, ACTIVATE_ADAPTER_TO_CONFIG); 263 264 /* 265 * Don't attach a 3c509 in PnP mode. 266 */ 267 if ((model & 0xfff0) == PROD_ID_3C509) { 268 if (bus_space_map(iot, iobase, 1, 0, &ioh2)) { 269 printf( 270 "ep_isa_probe: can't map Etherlink iobase\n"); 271 return 0; 272 } 273 if (bus_space_read_2(iot, ioh2, EP_W0_EEPROM_COMMAND) 274 & EEPROM_TST_MODE) { 275 printf( 276 "3COM 3C509 Ethernet card in PnP mode\n"); 277 continue; 278 } 279 bus_space_unmap(iot, ioh2, 1); 280 } 281 epaddcard(bus, iobase, irq, model); 282 } 283 /* XXX should we sort by ethernet address? */ 284 285 bus_space_unmap(iot, ioh, 1); 286 287 bus_probed: 288 289 for (i = 0; i < nepcards; i++) { 290 if (epcards[i].bus != bus) 291 continue; 292 if (epcards[i].available == 0) 293 continue; 294 if (ia->ia_iobase != IOBASEUNK && 295 ia->ia_iobase != epcards[i].iobase) 296 continue; 297 if (ia->ia_irq != IRQUNK && 298 ia->ia_irq != epcards[i].irq) 299 continue; 300 goto good; 301 } 302 return 0; 303 304 good: 305 epcards[i].available = 0; 306 ia->ia_iobase = epcards[i].iobase; 307 ia->ia_irq = epcards[i].irq; 308 ia->ia_iosize = 0x10; 309 ia->ia_msize = 0; 310 ia->ia_aux = (void *)epcards[i].model; 311 return 1; 312 } 313 314 void 315 ep_isa_attach(parent, self, aux) 316 struct device *parent, *self; 317 void *aux; 318 { 319 struct ep_softc *sc = (void *)self; 320 struct isa_attach_args *ia = aux; 321 bus_space_tag_t iot = ia->ia_iot; 322 bus_space_handle_t ioh; 323 int chipset; 324 325 /* Map i/o space. */ 326 if (bus_space_map(iot, ia->ia_iobase, ia->ia_iosize, 0, &ioh)) { 327 printf(": can't map i/o space\n"); 328 return; 329 } 330 331 sc->sc_iot = iot; 332 sc->sc_ioh = ioh; 333 sc->bustype = EP_BUS_ISA; 334 335 sc->enable = NULL; 336 sc->disable = NULL; 337 sc->enabled = 1; 338 339 chipset = (int)(long)ia->ia_aux; 340 if ((chipset & 0xfff0) == PROD_ID_3C509) { 341 printf(": 3Com 3C509 Ethernet\n"); 342 epconfig(sc, EP_CHIPSET_3C509, NULL); 343 } else { 344 /* 345 * XXX: Maybe a 3c515, but the check in ep_isa_probe looks 346 * at the moment only for a 3c509. 347 */ 348 printf(": unknown 3Com Ethernet card: %04x\n", chipset); 349 epconfig(sc, EP_CHIPSET_UNKNOWN, NULL); 350 } 351 352 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 353 IPL_NET, epintr, sc); 354 } 355
Indexes created Thu Sep 25 16:09:42 GMT 2025