if_le_isa.c revision 1.24
1 /* $NetBSD: if_le_isa.c,v 1.24 2000/06/28 16:27:55 mrg 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 <net/if.h> 89 #include <net/if_ether.h> 90 #include <net/if_media.h> 91 92 #ifdef INET 93 #include <netinet/in.h> 94 #include <netinet/if_inarp.h> 95 #endif 96 97 #include <machine/cpu.h> 98 #include <machine/intr.h> 99 #include <machine/bus.h> 100 101 #include <dev/isa/isareg.h> 102 #include <dev/isa/isavar.h> 103 #include <dev/isa/isadmavar.h> 104 105 #include <dev/ic/lancereg.h> 106 #include <dev/ic/lancevar.h> 107 #include <dev/ic/am7990reg.h> 108 #include <dev/ic/am7990var.h> 109 110 #include <dev/isa/if_levar.h> 111 112 int ne2100_isa_probe __P((struct device *, struct cfdata *, void *)); 113 int bicc_isa_probe __P((struct device *, struct cfdata *, void *)); 114 void le_dummyattach __P((struct device *, struct device *, void *)); 115 int le_dummyprobe __P((struct device *, struct cfdata *, void *)); 116 void le_ne2100_attach __P((struct device *, struct device *, void *)); 117 void le_bicc_attach __P((struct device *, struct device *, void *)); 118 119 struct cfattach nele_ca = { 120 sizeof(struct device), ne2100_isa_probe, le_dummyattach 121 }, le_nele_ca = { 122 sizeof(struct le_softc), le_dummyprobe, le_ne2100_attach 123 }, bicc_ca = { 124 sizeof(struct device), bicc_isa_probe, le_dummyattach 125 }, le_bicc_ca = { 126 sizeof(struct le_softc), le_dummyprobe, le_bicc_attach 127 }; 128 129 struct le_isa_params { 130 char *name; 131 int iosize, rap, rdp; 132 int macstart, macstride; 133 } ne2100_params = { 134 "NE2100", 135 24, NE2100_RAP, NE2100_RDP, 136 0, 1 137 }, bicc_params = { 138 "BICC Isolan", 139 16, BICC_RAP, BICC_RDP, 140 0, 2 141 }; 142 143 int lance_isa_probe __P((struct isa_attach_args *, struct le_isa_params *)); 144 void le_isa_attach __P((struct device *, struct le_softc *, 145 struct isa_attach_args *, struct le_isa_params *)); 146 147 int le_isa_intredge __P((void *)); 148 149 #if defined(_KERNEL) && !defined(_LKM) 150 #include "opt_ddb.h" 151 #endif 152 153 #ifdef DDB 154 #define integrate 155 #define hide 156 #else 157 #define integrate static __inline 158 #define hide static 159 #endif 160 161 hide void le_isa_wrcsr __P((struct lance_softc *, u_int16_t, u_int16_t)); 162 hide u_int16_t le_isa_rdcsr __P((struct lance_softc *, u_int16_t)); 163 164 #define LE_ISA_MEMSIZE 16384 165 166 hide void 167 le_isa_wrcsr(sc, port, val) 168 struct lance_softc *sc; 169 u_int16_t port, val; 170 { 171 struct le_softc *lesc = (struct le_softc *)sc; 172 bus_space_tag_t iot = lesc->sc_iot; 173 bus_space_handle_t ioh = lesc->sc_ioh; 174 175 bus_space_write_2(iot, ioh, lesc->sc_rap, port); 176 bus_space_write_2(iot, ioh, lesc->sc_rdp, val); 177 } 178 179 hide u_int16_t 180 le_isa_rdcsr(sc, port) 181 struct lance_softc *sc; 182 u_int16_t port; 183 { 184 struct le_softc *lesc = (struct le_softc *)sc; 185 bus_space_tag_t iot = lesc->sc_iot; 186 bus_space_handle_t ioh = lesc->sc_ioh; 187 u_int16_t val; 188 189 bus_space_write_2(iot, ioh, lesc->sc_rap, port); 190 val = bus_space_read_2(iot, ioh, lesc->sc_rdp); 191 return (val); 192 } 193 194 int 195 ne2100_isa_probe(parent, match, aux) 196 struct device *parent; 197 struct cfdata *match; 198 void *aux; 199 { 200 return (lance_isa_probe(aux, &ne2100_params)); 201 } 202 203 int 204 bicc_isa_probe(parent, match, aux) 205 struct device *parent; 206 struct cfdata *match; 207 void *aux; 208 { 209 return (lance_isa_probe(aux, &bicc_params)); 210 } 211 212 /* 213 * Determine which chip is present on the card. 214 */ 215 int 216 lance_isa_probe(ia, p) 217 struct isa_attach_args *ia; 218 struct le_isa_params *p; 219 { 220 bus_space_tag_t iot = ia->ia_iot; 221 bus_space_handle_t ioh; 222 int rap, rdp; 223 int rv = 0; 224 225 /* Disallow wildcarded i/o address. */ 226 if (ia->ia_iobase == ISACF_PORT_DEFAULT) 227 return (0); 228 229 /* Map i/o space. */ 230 if (bus_space_map(iot, ia->ia_iobase, p->iosize, 0, &ioh)) 231 return (0); 232 233 rap = p->rap; 234 rdp = p->rdp; 235 236 /* Stop the LANCE chip and put it in a known state. */ 237 bus_space_write_2(iot, ioh, rap, LE_CSR0); 238 bus_space_write_2(iot, ioh, rdp, LE_C0_STOP); 239 delay(100); 240 241 bus_space_write_2(iot, ioh, rap, LE_CSR0); 242 if (bus_space_read_2(iot, ioh, rdp) != LE_C0_STOP) 243 goto bad; 244 245 bus_space_write_2(iot, ioh, rap, LE_CSR3); 246 bus_space_write_2(iot, ioh, rdp, 0); 247 248 ia->ia_iosize = p->iosize; 249 rv = 1; 250 251 bad: 252 bus_space_unmap(iot, ioh, p->iosize); 253 return (rv); 254 } 255 256 void 257 le_dummyattach(parent, self, aux) 258 struct device *parent, *self; 259 void *aux; 260 { 261 printf("\n"); 262 263 config_found(self, aux, 0); 264 } 265 266 int 267 le_dummyprobe(parent, match, aux) 268 struct device *parent; 269 struct cfdata *match; 270 void *aux; 271 { 272 return (1); 273 } 274 275 void 276 le_ne2100_attach(parent, self, aux) 277 struct device *parent, *self; 278 void *aux; 279 { 280 le_isa_attach(parent, (void *)self, aux, &ne2100_params); 281 } 282 283 void 284 le_bicc_attach(parent, self, aux) 285 struct device *parent, *self; 286 void *aux; 287 { 288 le_isa_attach(parent, (void *)self, aux, &bicc_params); 289 } 290 291 void 292 le_isa_attach(parent, lesc, ia, p) 293 struct device *parent; 294 struct le_softc *lesc; 295 struct isa_attach_args *ia; 296 struct le_isa_params *p; 297 { 298 struct lance_softc *sc = &lesc->sc_am7990.lsc; 299 bus_space_tag_t iot = ia->ia_iot; 300 bus_space_handle_t ioh; 301 bus_dma_tag_t dmat = ia->ia_dmat; 302 bus_dma_segment_t seg; 303 int i, rseg, error; 304 305 printf(": %s Ethernet\n", p->name); 306 307 if (bus_space_map(iot, ia->ia_iobase, p->iosize, 0, &ioh)) 308 panic("%s: can't map io", sc->sc_dev.dv_xname); 309 310 /* 311 * Extract the physical MAC address from the ROM. 312 */ 313 for (i = 0; i < sizeof(sc->sc_enaddr); i++) 314 sc->sc_enaddr[i] = 315 bus_space_read_1(iot, ioh, p->macstart + i * p->macstride); 316 317 lesc->sc_iot = iot; 318 lesc->sc_ioh = ioh; 319 lesc->sc_dmat = dmat; 320 lesc->sc_rap = p->rap; 321 lesc->sc_rdp = p->rdp; 322 323 /* 324 * Allocate a DMA area for the card. 325 */ 326 if (bus_dmamem_alloc(dmat, LE_ISA_MEMSIZE, NBPG, 0, &seg, 1, 327 &rseg, BUS_DMA_NOWAIT)) { 328 printf("%s: couldn't allocate memory for card\n", 329 sc->sc_dev.dv_xname); 330 return; 331 } 332 if (bus_dmamem_map(dmat, &seg, rseg, LE_ISA_MEMSIZE, 333 (caddr_t *)&sc->sc_mem, 334 BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 335 printf("%s: couldn't map memory for card\n", 336 sc->sc_dev.dv_xname); 337 return; 338 } 339 340 /* 341 * Create and load the DMA map for the DMA area. 342 */ 343 if (bus_dmamap_create(dmat, LE_ISA_MEMSIZE, 1, 344 LE_ISA_MEMSIZE, 0, BUS_DMA_NOWAIT, &lesc->sc_dmam)) { 345 printf("%s: couldn't create DMA map\n", 346 sc->sc_dev.dv_xname); 347 bus_dmamem_free(dmat, &seg, rseg); 348 return; 349 } 350 if (bus_dmamap_load(dmat, lesc->sc_dmam, 351 sc->sc_mem, LE_ISA_MEMSIZE, NULL, BUS_DMA_NOWAIT)) { 352 printf("%s: coundn't load DMA map\n", 353 sc->sc_dev.dv_xname); 354 bus_dmamem_free(dmat, &seg, rseg); 355 return; 356 } 357 358 sc->sc_conf3 = 0; 359 sc->sc_addr = lesc->sc_dmam->dm_segs[0].ds_addr; 360 sc->sc_memsize = LE_ISA_MEMSIZE; 361 362 sc->sc_copytodesc = lance_copytobuf_contig; 363 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 364 sc->sc_copytobuf = lance_copytobuf_contig; 365 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 366 sc->sc_zerobuf = lance_zerobuf_contig; 367 368 sc->sc_rdcsr = le_isa_rdcsr; 369 sc->sc_wrcsr = le_isa_wrcsr; 370 sc->sc_hwinit = NULL; 371 372 if (ia->ia_drq != DRQUNK) { 373 if ((error = isa_dmacascade(ia->ia_ic, ia->ia_drq)) != 0) { 374 printf("%s: unable to cascade DRQ, error = %d\n", 375 sc->sc_dev.dv_xname, error); 376 return; 377 } 378 } 379 380 lesc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 381 IPL_NET, le_isa_intredge, sc); 382 383 printf("%s", sc->sc_dev.dv_xname); 384 am7990_config(&lesc->sc_am7990); 385 } 386 387 /* 388 * Controller interrupt. 389 */ 390 int 391 le_isa_intredge(arg) 392 void *arg; 393 { 394 395 if (am7990_intr(arg) == 0) 396 return (0); 397 for (;;) 398 if (am7990_intr(arg) == 0) 399 return (1); 400 } 401
Indexes created Sat Oct 18 17:09:52 GMT 2025