if_ep_isa.c revision 1.15
1 /* $NetBSD: if_ep_isa.c,v 1.15 1997/06/23 05:25:40 cjs Exp $ */ 2 3 /* 4 * Copyright (c) 1997 Jonathan Stone <jonathan (at) NetBSD.org> 5 * Copyright (c) 1996 Jason R. Thorpe <thorpej (at) beer.org> 6 * Copyright (c) 1994 Herb Peyerl <hpeyerl (at) beer.org> 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by Herb Peyerl. 20 * 4. The name of Herb Peyerl may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 #include "bpfilter.h" 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/mbuf.h> 40 #include <sys/socket.h> 41 #include <sys/ioctl.h> 42 #include <sys/errno.h> 43 #include <sys/syslog.h> 44 #include <sys/select.h> 45 #include <sys/device.h> 46 #include <sys/queue.h> 47 48 #include <net/if.h> 49 #include <net/if_dl.h> 50 #include <net/if_ether.h> 51 #include <net/if_media.h> 52 53 54 #ifdef INET 55 #include <netinet/in.h> 56 #include <netinet/in_systm.h> 57 #include <netinet/in_var.h> 58 #include <netinet/ip.h> 59 #include <netinet/if_inarp.h> 60 #endif 61 62 #ifdef NS 63 #include <netns/ns.h> 64 #include <netns/ns_if.h> 65 #endif 66 67 #if NBPFILTER > 0 68 #include <net/bpf.h> 69 #include <net/bpfdesc.h> 70 #endif 71 72 #include <machine/cpu.h> 73 #include <machine/bus.h> 74 #include <machine/intr.h> 75 76 #include <dev/ic/elink3var.h> 77 #include <dev/ic/elink3reg.h> 78 79 #include <dev/isa/isavar.h> 80 #include <dev/isa/elink.h> 81 82 #ifdef __BROKEN_INDIRECT_CONFIG 83 int ep_isa_probe __P((struct device *, void *, void *)); 84 #else 85 int ep_isa_probe __P((struct device *, struct cfdata *, void *)); 86 #endif 87 void ep_isa_attach __P((struct device *, struct device *, void *)); 88 89 struct cfattach ep_isa_ca = { 90 sizeof(struct ep_softc), ep_isa_probe, ep_isa_attach 91 }; 92 93 static void epaddcard __P((int, int, int, int)); 94 95 /* 96 * This keeps track of which ISAs have been through an ep probe sequence. 97 * A simple static variable isn't enough, since it's conceivable that 98 * a system might have more than one ISA bus. 99 * 100 * The "er_bus" member is the unit number of the parent ISA bus, e.g. "0" 101 * for "isa0". 102 */ 103 struct ep_isa_done_probe { 104 LIST_ENTRY(ep_isa_done_probe) er_link; 105 int er_bus; 106 }; 107 static LIST_HEAD(, ep_isa_done_probe) ep_isa_all_probes; 108 static int ep_isa_probes_initialized; 109 110 #define MAXEPCARDS 20 /* if you have more than 20, you lose */ 111 112 static struct epcard { 113 int bus; 114 int iobase; 115 int irq; 116 char available; 117 long model; 118 } epcards[MAXEPCARDS]; 119 static int nepcards; 120 121 static void 122 epaddcard(bus, iobase, irq, model) 123 int bus, iobase, irq, model; 124 { 125 126 if (nepcards >= MAXEPCARDS) 127 return; 128 epcards[nepcards].bus = bus; 129 epcards[nepcards].iobase = iobase; 130 epcards[nepcards].irq = (irq == 2) ? 9 : irq; 131 epcards[nepcards].model = model; 132 epcards[nepcards].available = 1; 133 nepcards++; 134 } 135 136 /* 137 * 3c509 cards on the ISA bus are probed in ethernet address order. 138 * The probe sequence requires careful orchestration, and we'd like 139 * like to allow the irq and base address to be wildcarded. So, we 140 * probe all the cards the first time epprobe() is called. On subsequent 141 * calls we look for matching cards. 142 */ 143 int 144 ep_isa_probe(parent, match, aux) 145 struct device *parent; 146 #ifdef __BROKEN_INDIRECT_CONFIG 147 void *match; 148 #else 149 struct cfdata *match; 150 #endif 151 void *aux; 152 { 153 struct isa_attach_args *ia = aux; 154 bus_space_tag_t iot = ia->ia_iot; 155 bus_space_handle_t ioh, ioh2; 156 int slot, iobase, irq, i; 157 u_int16_t vendor, model; 158 struct ep_isa_done_probe *er; 159 int bus = parent->dv_unit; 160 161 if (ep_isa_probes_initialized == 0) { 162 LIST_INIT(&ep_isa_all_probes); 163 ep_isa_probes_initialized = 1; 164 } 165 166 /* 167 * Probe this bus if we haven't done so already. 168 */ 169 for (er = ep_isa_all_probes.lh_first; er != NULL; 170 er = er->er_link.le_next) 171 if (er->er_bus == parent->dv_unit) 172 goto bus_probed; 173 174 /* 175 * Mark this bus so we don't probe it again. 176 */ 177 er = (struct ep_isa_done_probe *) 178 malloc(sizeof(struct ep_isa_done_probe), M_DEVBUF, M_NOWAIT); 179 if (er == NULL) 180 panic("ep_isa_probe: can't allocate state storage"); 181 182 er->er_bus = bus; 183 LIST_INSERT_HEAD(&ep_isa_all_probes, er, er_link); 184 185 /* 186 * Map the Etherlink ID port for the probe sequence. 187 */ 188 if (bus_space_map(iot, ELINK_ID_PORT, 1, 0, &ioh)) { 189 printf("ep_isa_probe: can't map Etherlink ID port\n"); 190 return 0; 191 } 192 193 for (slot = 0; slot < MAXEPCARDS; slot++) { 194 elink_reset(iot, ioh, parent->dv_unit); 195 elink_idseq(iot, ioh, ELINK_509_POLY); 196 197 /* Untag all the adapters so they will talk to us. */ 198 if (slot == 0) 199 bus_space_write_1(iot, ioh, 0, TAG_ADAPTER + 0); 200 201 vendor = htons(epreadeeprom(iot, ioh, EEPROM_MFG_ID)); 202 if (vendor != MFG_ID) 203 continue; 204 205 model = htons(epreadeeprom(iot, ioh, EEPROM_PROD_ID)); 206 /* 207 * XXX: Add a new product id to check for other cards 208 * (3c515?) and fix the check in ep_isa_attach. 209 */ 210 if ((model & 0xfff0) != PROD_ID_3C509) { 211 #ifndef trusted 212 printf( 213 "ep_isa_probe: ignoring model %04x\n", model); 214 #endif 215 continue; 216 } 217 218 iobase = epreadeeprom(iot, ioh, EEPROM_ADDR_CFG); 219 iobase = (iobase & 0x1f) * 0x10 + 0x200; 220 221 irq = epreadeeprom(iot, ioh, EEPROM_RESOURCE_CFG); 222 irq >>= 12; 223 224 /* so card will not respond to contention again */ 225 bus_space_write_1(iot, ioh, 0, TAG_ADAPTER + 1); 226 227 /* 228 * XXX: this should probably not be done here 229 * because it enables the drq/irq lines from 230 * the board. Perhaps it should be done after 231 * we have checked for irq/drq collisions? 232 */ 233 bus_space_write_1(iot, ioh, 0, ACTIVATE_ADAPTER_TO_CONFIG); 234 235 /* 236 * Don't attach a 3c509 in PnP mode. 237 */ 238 if ((model & 0xfff0) == PROD_ID_3C509) { 239 if (bus_space_map(iot, iobase, 1, 0, &ioh2)) { 240 printf( 241 "ep_isa_probe: can't map Etherlink iobase\n"); 242 return 0; 243 } 244 if (bus_space_read_2(iot, ioh2, EP_W0_EEPROM_COMMAND) 245 & EEPROM_TST_MODE) { 246 printf( 247 "3COM 3C509 Ethernet card in PnP mode\n"); 248 continue; 249 } 250 bus_space_unmap(iot, ioh2, 1); 251 } 252 epaddcard(bus, iobase, irq, model); 253 } 254 /* XXX should we sort by ethernet address? */ 255 256 bus_space_unmap(iot, ioh, 1); 257 258 bus_probed: 259 260 for (i = 0; i < nepcards; i++) { 261 if (epcards[i].bus != bus) 262 continue; 263 if (epcards[i].available == 0) 264 continue; 265 if (ia->ia_iobase != IOBASEUNK && 266 ia->ia_iobase != epcards[i].iobase) 267 continue; 268 if (ia->ia_irq != IRQUNK && 269 ia->ia_irq != epcards[i].irq) 270 continue; 271 goto good; 272 } 273 return 0; 274 275 good: 276 epcards[i].available = 0; 277 ia->ia_iobase = epcards[i].iobase; 278 ia->ia_irq = epcards[i].irq; 279 ia->ia_iosize = 0x10; 280 ia->ia_msize = 0; 281 ia->ia_aux = (void *)epcards[i].model; 282 return 1; 283 } 284 285 void 286 ep_isa_attach(parent, self, aux) 287 struct device *parent, *self; 288 void *aux; 289 { 290 struct ep_softc *sc = (void *)self; 291 struct isa_attach_args *ia = aux; 292 bus_space_tag_t iot = ia->ia_iot; 293 bus_space_handle_t ioh; 294 int chipset; 295 296 /* Map i/o space. */ 297 if (bus_space_map(iot, ia->ia_iobase, ia->ia_iosize, 0, &ioh)) 298 panic("ep_isa_attach: can't map i/o space"); 299 300 sc->sc_iot = iot; 301 sc->sc_ioh = ioh; 302 sc->bustype = EP_BUS_ISA; 303 304 chipset = (int)(long)ia->ia_aux; 305 if ((chipset & 0xfff0) == PROD_ID_3C509) { 306 printf(": 3Com 3C509 Ethernet\n"); 307 epconfig(sc, EP_CHIPSET_3C509); 308 } else { 309 /* 310 * XXX: Maybe a 3c515, but the check in ep_isa_probe looks 311 * at the moment only for a 3c509. 312 */ 313 printf(": unknown 3Com Ethernet card: %04x\n", chipset); 314 epconfig(sc, EP_CHIPSET_UNKNOWN); 315 } 316 317 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 318 IPL_NET, epintr, sc); 319 } 320
Indexes created Wed Oct 15 16:09:53 GMT 2025