if_le_isa.c revision 1.25
1 /* $NetBSD: if_le_isa.c,v 1.25 2000/11/14 18:28:16 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace 9 * Simulation Facility, 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) 1992, 1993 42 * The Regents of the University of California. All rights reserved. 43 * 44 * This code is derived from software contributed to Berkeley by 45 * Ralph Campbell and Rick Macklem. 46 * 47 * Redistribution and use in source and binary forms, with or without 48 * modification, are permitted provided that the following conditions 49 * are met: 50 * 1. Redistributions of source code must retain the above copyright 51 * notice, this list of conditions and the following disclaimer. 52 * 2. Redistributions in binary form must reproduce the above copyright 53 * notice, this list of conditions and the following disclaimer in the 54 * documentation and/or other materials provided with the distribution. 55 * 3. All advertising materials mentioning features or use of this software 56 * must display the following acknowledgement: 57 * This product includes software developed by the University of 58 * California, Berkeley and its contributors. 59 * 4. Neither the name of the University nor the names of its contributors 60 * may be used to endorse or promote products derived from this software 61 * without specific prior written permission. 62 * 63 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 64 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 65 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 66 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 67 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 68 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 69 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 70 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 71 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 72 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 73 * SUCH DAMAGE. 74 * 75 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 76 */ 77 78 #include "opt_inet.h" 79 #include "bpfilter.h" 80 81 #include <sys/param.h> 82 #include <sys/systm.h> 83 #include <sys/mbuf.h> 84 #include <sys/syslog.h> 85 #include <sys/socket.h> 86 #include <sys/device.h> 87 88 #include <uvm/uvm_extern.h> 89 90 #include <net/if.h> 91 #include <net/if_ether.h> 92 #include <net/if_media.h> 93 94 #ifdef INET 95 #include <netinet/in.h> 96 #include <netinet/if_inarp.h> 97 #endif 98 99 #include <machine/cpu.h> 100 #include <machine/intr.h> 101 #include <machine/bus.h> 102 103 #include <dev/isa/isareg.h> 104 #include <dev/isa/isavar.h> 105 #include <dev/isa/isadmavar.h> 106 107 #include <dev/ic/lancereg.h> 108 #include <dev/ic/lancevar.h> 109 #include <dev/ic/am7990reg.h> 110 #include <dev/ic/am7990var.h> 111 112 #include <dev/isa/if_levar.h> 113 114 int ne2100_isa_probe __P((struct device *, struct cfdata *, void *)); 115 int bicc_isa_probe __P((struct device *, struct cfdata *, void *)); 116 void le_dummyattach __P((struct device *, struct device *, void *)); 117 int le_dummyprobe __P((struct device *, struct cfdata *, void *)); 118 void le_ne2100_attach __P((struct device *, struct device *, void *)); 119 void le_bicc_attach __P((struct device *, struct device *, void *)); 120 121 struct cfattach nele_ca = { 122 sizeof(struct device), ne2100_isa_probe, le_dummyattach 123 }, le_nele_ca = { 124 sizeof(struct le_softc), le_dummyprobe, le_ne2100_attach 125 }, bicc_ca = { 126 sizeof(struct device), bicc_isa_probe, le_dummyattach 127 }, le_bicc_ca = { 128 sizeof(struct le_softc), le_dummyprobe, le_bicc_attach 129 }; 130 131 struct le_isa_params { 132 char *name; 133 int iosize, rap, rdp; 134 int macstart, macstride; 135 } ne2100_params = { 136 "NE2100", 137 24, NE2100_RAP, NE2100_RDP, 138 0, 1 139 }, bicc_params = { 140 "BICC Isolan", 141 16, BICC_RAP, BICC_RDP, 142 0, 2 143 }; 144 145 int lance_isa_probe __P((struct isa_attach_args *, struct le_isa_params *)); 146 void le_isa_attach __P((struct device *, struct le_softc *, 147 struct isa_attach_args *, struct le_isa_params *)); 148 149 int le_isa_intredge __P((void *)); 150 151 #if defined(_KERNEL) && !defined(_LKM) 152 #include "opt_ddb.h" 153 #endif 154 155 #ifdef DDB 156 #define integrate 157 #define hide 158 #else 159 #define integrate static __inline 160 #define hide static 161 #endif 162 163 hide void le_isa_wrcsr __P((struct lance_softc *, u_int16_t, u_int16_t)); 164 hide u_int16_t le_isa_rdcsr __P((struct lance_softc *, u_int16_t)); 165 166 #define LE_ISA_MEMSIZE 16384 167 168 hide void 169 le_isa_wrcsr(sc, port, val) 170 struct lance_softc *sc; 171 u_int16_t port, val; 172 { 173 struct le_softc *lesc = (struct le_softc *)sc; 174 bus_space_tag_t iot = lesc->sc_iot; 175 bus_space_handle_t ioh = lesc->sc_ioh; 176 177 bus_space_write_2(iot, ioh, lesc->sc_rap, port); 178 bus_space_write_2(iot, ioh, lesc->sc_rdp, val); 179 } 180 181 hide u_int16_t 182 le_isa_rdcsr(sc, port) 183 struct lance_softc *sc; 184 u_int16_t port; 185 { 186 struct le_softc *lesc = (struct le_softc *)sc; 187 bus_space_tag_t iot = lesc->sc_iot; 188 bus_space_handle_t ioh = lesc->sc_ioh; 189 u_int16_t val; 190 191 bus_space_write_2(iot, ioh, lesc->sc_rap, port); 192 val = bus_space_read_2(iot, ioh, lesc->sc_rdp); 193 return (val); 194 } 195 196 int 197 ne2100_isa_probe(parent, match, aux) 198 struct device *parent; 199 struct cfdata *match; 200 void *aux; 201 { 202 return (lance_isa_probe(aux, &ne2100_params)); 203 } 204 205 int 206 bicc_isa_probe(parent, match, aux) 207 struct device *parent; 208 struct cfdata *match; 209 void *aux; 210 { 211 return (lance_isa_probe(aux, &bicc_params)); 212 } 213 214 /* 215 * Determine which chip is present on the card. 216 */ 217 int 218 lance_isa_probe(ia, p) 219 struct isa_attach_args *ia; 220 struct le_isa_params *p; 221 { 222 bus_space_tag_t iot = ia->ia_iot; 223 bus_space_handle_t ioh; 224 int rap, rdp; 225 int rv = 0; 226 227 /* Disallow wildcarded i/o address. */ 228 if (ia->ia_iobase == ISACF_PORT_DEFAULT) 229 return (0); 230 231 /* Map i/o space. */ 232 if (bus_space_map(iot, ia->ia_iobase, p->iosize, 0, &ioh)) 233 return (0); 234 235 rap = p->rap; 236 rdp = p->rdp; 237 238 /* Stop the LANCE chip and put it in a known state. */ 239 bus_space_write_2(iot, ioh, rap, LE_CSR0); 240 bus_space_write_2(iot, ioh, rdp, LE_C0_STOP); 241 delay(100); 242 243 bus_space_write_2(iot, ioh, rap, LE_CSR0); 244 if (bus_space_read_2(iot, ioh, rdp) != LE_C0_STOP) 245 goto bad; 246 247 bus_space_write_2(iot, ioh, rap, LE_CSR3); 248 bus_space_write_2(iot, ioh, rdp, 0); 249 250 ia->ia_iosize = p->iosize; 251 rv = 1; 252 253 bad: 254 bus_space_unmap(iot, ioh, p->iosize); 255 return (rv); 256 } 257 258 void 259 le_dummyattach(parent, self, aux) 260 struct device *parent, *self; 261 void *aux; 262 { 263 printf("\n"); 264 265 config_found(self, aux, 0); 266 } 267 268 int 269 le_dummyprobe(parent, match, aux) 270 struct device *parent; 271 struct cfdata *match; 272 void *aux; 273 { 274 return (1); 275 } 276 277 void 278 le_ne2100_attach(parent, self, aux) 279 struct device *parent, *self; 280 void *aux; 281 { 282 le_isa_attach(parent, (void *)self, aux, &ne2100_params); 283 } 284 285 void 286 le_bicc_attach(parent, self, aux) 287 struct device *parent, *self; 288 void *aux; 289 { 290 le_isa_attach(parent, (void *)self, aux, &bicc_params); 291 } 292 293 void 294 le_isa_attach(parent, lesc, ia, p) 295 struct device *parent; 296 struct le_softc *lesc; 297 struct isa_attach_args *ia; 298 struct le_isa_params *p; 299 { 300 struct lance_softc *sc = &lesc->sc_am7990.lsc; 301 bus_space_tag_t iot = ia->ia_iot; 302 bus_space_handle_t ioh; 303 bus_dma_tag_t dmat = ia->ia_dmat; 304 bus_dma_segment_t seg; 305 int i, rseg, error; 306 307 printf(": %s Ethernet\n", p->name); 308 309 if (bus_space_map(iot, ia->ia_iobase, p->iosize, 0, &ioh)) 310 panic("%s: can't map io", sc->sc_dev.dv_xname); 311 312 /* 313 * Extract the physical MAC address from the ROM. 314 */ 315 for (i = 0; i < sizeof(sc->sc_enaddr); i++) 316 sc->sc_enaddr[i] = 317 bus_space_read_1(iot, ioh, p->macstart + i * p->macstride); 318 319 lesc->sc_iot = iot; 320 lesc->sc_ioh = ioh; 321 lesc->sc_dmat = dmat; 322 lesc->sc_rap = p->rap; 323 lesc->sc_rdp = p->rdp; 324 325 /* 326 * Allocate a DMA area for the card. 327 */ 328 if (bus_dmamem_alloc(dmat, LE_ISA_MEMSIZE, PAGE_SIZE, 0, &seg, 1, 329 &rseg, BUS_DMA_NOWAIT)) { 330 printf("%s: couldn't allocate memory for card\n", 331 sc->sc_dev.dv_xname); 332 return; 333 } 334 if (bus_dmamem_map(dmat, &seg, rseg, LE_ISA_MEMSIZE, 335 (caddr_t *)&sc->sc_mem, 336 BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 337 printf("%s: couldn't map memory for card\n", 338 sc->sc_dev.dv_xname); 339 return; 340 } 341 342 /* 343 * Create and load the DMA map for the DMA area. 344 */ 345 if (bus_dmamap_create(dmat, LE_ISA_MEMSIZE, 1, 346 LE_ISA_MEMSIZE, 0, BUS_DMA_NOWAIT, &lesc->sc_dmam)) { 347 printf("%s: couldn't create DMA map\n", 348 sc->sc_dev.dv_xname); 349 bus_dmamem_free(dmat, &seg, rseg); 350 return; 351 } 352 if (bus_dmamap_load(dmat, lesc->sc_dmam, 353 sc->sc_mem, LE_ISA_MEMSIZE, NULL, BUS_DMA_NOWAIT)) { 354 printf("%s: coundn't load DMA map\n", 355 sc->sc_dev.dv_xname); 356 bus_dmamem_free(dmat, &seg, rseg); 357 return; 358 } 359 360 sc->sc_conf3 = 0; 361 sc->sc_addr = lesc->sc_dmam->dm_segs[0].ds_addr; 362 sc->sc_memsize = LE_ISA_MEMSIZE; 363 364 sc->sc_copytodesc = lance_copytobuf_contig; 365 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 366 sc->sc_copytobuf = lance_copytobuf_contig; 367 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 368 sc->sc_zerobuf = lance_zerobuf_contig; 369 370 sc->sc_rdcsr = le_isa_rdcsr; 371 sc->sc_wrcsr = le_isa_wrcsr; 372 sc->sc_hwinit = NULL; 373 374 if (ia->ia_drq != DRQUNK) { 375 if ((error = isa_dmacascade(ia->ia_ic, ia->ia_drq)) != 0) { 376 printf("%s: unable to cascade DRQ, error = %d\n", 377 sc->sc_dev.dv_xname, error); 378 return; 379 } 380 } 381 382 lesc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 383 IPL_NET, le_isa_intredge, sc); 384 385 printf("%s", sc->sc_dev.dv_xname); 386 am7990_config(&lesc->sc_am7990); 387 } 388 389 /* 390 * Controller interrupt. 391 */ 392 int 393 le_isa_intredge(arg) 394 void *arg; 395 { 396 397 if (am7990_intr(arg) == 0) 398 return (0); 399 for (;;) 400 if (am7990_intr(arg) == 0) 401 return (1); 402 } 403
Indexes created Wed Oct 01 13:09:50 GMT 2025