if_le_isa.c revision 1.21
1 /* $NetBSD: if_le_isa.c,v 1.21 1998/07/05 00:51:21 jonathan Exp $ */ 2 3 /*- 4 * Copyright (c) 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) 1995 Charles M. Hannum. All rights reserved. 42 * Copyright (c) 1992, 1993 43 * The Regents of the University of California. All rights reserved. 44 * 45 * This code is derived from software contributed to Berkeley by 46 * Ralph Campbell and Rick Macklem. 47 * 48 * Redistribution and use in source and binary forms, with or without 49 * modification, are permitted provided that the following conditions 50 * are met: 51 * 1. Redistributions of source code must retain the above copyright 52 * notice, this list of conditions and the following disclaimer. 53 * 2. Redistributions in binary form must reproduce the above copyright 54 * notice, this list of conditions and the following disclaimer in the 55 * documentation and/or other materials provided with the distribution. 56 * 3. All advertising materials mentioning features or use of this software 57 * must display the following acknowledgement: 58 * This product includes software developed by the University of 59 * California, Berkeley and its contributors. 60 * 4. Neither the name of the University nor the names of its contributors 61 * may be used to endorse or promote products derived from this software 62 * without specific prior written permission. 63 * 64 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 65 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 66 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 67 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 68 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 69 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 70 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 71 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 72 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 73 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 74 * SUCH DAMAGE. 75 * 76 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 77 */ 78 79 #include "opt_inet.h" 80 #include "bpfilter.h" 81 82 #include <sys/param.h> 83 #include <sys/systm.h> 84 #include <sys/mbuf.h> 85 #include <sys/syslog.h> 86 #include <sys/socket.h> 87 #include <sys/device.h> 88 89 #include <net/if.h> 90 #include <net/if_ether.h> 91 #include <net/if_media.h> 92 93 #ifdef INET 94 #include <netinet/in.h> 95 #include <netinet/if_inarp.h> 96 #endif 97 98 #include <vm/vm.h> 99 100 #include <machine/cpu.h> 101 #include <machine/intr.h> 102 #include <machine/bus.h> 103 104 #include <dev/isa/isareg.h> 105 #include <dev/isa/isavar.h> 106 #include <dev/isa/isadmavar.h> 107 108 #include <dev/ic/am7990reg.h> 109 #include <dev/ic/am7990var.h> 110 111 #include <dev/isa/if_levar.h> 112 113 int ne2100_isa_probe __P((struct device *, struct cfdata *, void *)); 114 int bicc_isa_probe __P((struct device *, struct cfdata *, void *)); 115 void le_dummyattach __P((struct device *, struct device *, void *)); 116 int le_dummyprobe __P((struct device *, struct cfdata *, void *)); 117 void le_ne2100_attach __P((struct device *, struct device *, void *)); 118 void le_bicc_attach __P((struct device *, struct device *, void *)); 119 120 struct cfattach nele_ca = { 121 sizeof(struct device), ne2100_isa_probe, le_dummyattach 122 }, le_nele_ca = { 123 sizeof(struct le_softc), le_dummyprobe, le_ne2100_attach 124 }, bicc_ca = { 125 sizeof(struct device), bicc_isa_probe, le_dummyattach 126 }, le_bicc_ca = { 127 sizeof(struct le_softc), le_dummyprobe, le_bicc_attach 128 }; 129 130 struct le_isa_params { 131 char *name; 132 int iosize, rap, rdp; 133 int macstart, macstride; 134 } ne2100_params = { 135 "NE2100", 136 24, NE2100_RAP, NE2100_RDP, 137 0, 1 138 }, bicc_params = { 139 "BICC Isolan", 140 16, BICC_RAP, BICC_RDP, 141 0, 2 142 }; 143 144 int lance_isa_probe __P((struct isa_attach_args *, struct le_isa_params *)); 145 void le_isa_attach __P((struct device *, struct le_softc *, 146 struct isa_attach_args *, struct le_isa_params *)); 147 148 int le_isa_intredge __P((void *)); 149 150 hide void le_isa_wrcsr __P((struct am7990_softc *, u_int16_t, u_int16_t)); 151 hide u_int16_t le_isa_rdcsr __P((struct am7990_softc *, u_int16_t)); 152 153 #define LE_ISA_MEMSIZE 16384 154 155 hide void 156 le_isa_wrcsr(sc, port, val) 157 struct am7990_softc *sc; 158 u_int16_t port, val; 159 { 160 struct le_softc *lesc = (struct le_softc *)sc; 161 bus_space_tag_t iot = lesc->sc_iot; 162 bus_space_handle_t ioh = lesc->sc_ioh; 163 164 bus_space_write_2(iot, ioh, lesc->sc_rap, port); 165 bus_space_write_2(iot, ioh, lesc->sc_rdp, val); 166 } 167 168 hide u_int16_t 169 le_isa_rdcsr(sc, port) 170 struct am7990_softc *sc; 171 u_int16_t port; 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 u_int16_t val; 177 178 bus_space_write_2(iot, ioh, lesc->sc_rap, port); 179 val = bus_space_read_2(iot, ioh, lesc->sc_rdp); 180 return (val); 181 } 182 183 int 184 ne2100_isa_probe(parent, match, aux) 185 struct device *parent; 186 struct cfdata *match; 187 void *aux; 188 { 189 return (lance_isa_probe(aux, &ne2100_params)); 190 } 191 192 int 193 bicc_isa_probe(parent, match, aux) 194 struct device *parent; 195 struct cfdata *match; 196 void *aux; 197 { 198 return (lance_isa_probe(aux, &bicc_params)); 199 } 200 201 /* 202 * Determine which chip is present on the card. 203 */ 204 int 205 lance_isa_probe(ia, p) 206 struct isa_attach_args *ia; 207 struct le_isa_params *p; 208 { 209 bus_space_tag_t iot = ia->ia_iot; 210 bus_space_handle_t ioh; 211 int rap, rdp; 212 int rv = 0; 213 214 /* Disallow wildcarded i/o address. */ 215 if (ia->ia_iobase == ISACF_PORT_DEFAULT) 216 return (0); 217 218 /* Map i/o space. */ 219 if (bus_space_map(iot, ia->ia_iobase, p->iosize, 0, &ioh)) 220 return (0); 221 222 rap = p->rap; 223 rdp = p->rdp; 224 225 /* Stop the LANCE chip and put it in a known state. */ 226 bus_space_write_2(iot, ioh, rap, LE_CSR0); 227 bus_space_write_2(iot, ioh, rdp, LE_C0_STOP); 228 delay(100); 229 230 bus_space_write_2(iot, ioh, rap, LE_CSR0); 231 if (bus_space_read_2(iot, ioh, rdp) != LE_C0_STOP) 232 goto bad; 233 234 bus_space_write_2(iot, ioh, rap, LE_CSR3); 235 bus_space_write_2(iot, ioh, rdp, 0); 236 237 ia->ia_iosize = p->iosize; 238 rv = 1; 239 240 bad: 241 bus_space_unmap(iot, ioh, p->iosize); 242 return (rv); 243 } 244 245 void 246 le_dummyattach(parent, self, aux) 247 struct device *parent, *self; 248 void *aux; 249 { 250 printf("\n"); 251 252 config_found(self, aux, 0); 253 } 254 255 int 256 le_dummyprobe(parent, match, aux) 257 struct device *parent; 258 struct cfdata *match; 259 void *aux; 260 { 261 return (1); 262 } 263 264 void 265 le_ne2100_attach(parent, self, aux) 266 struct device *parent, *self; 267 void *aux; 268 { 269 le_isa_attach(parent, (void *)self, aux, &ne2100_params); 270 } 271 272 void 273 le_bicc_attach(parent, self, aux) 274 struct device *parent, *self; 275 void *aux; 276 { 277 le_isa_attach(parent, (void *)self, aux, &bicc_params); 278 } 279 280 void 281 le_isa_attach(parent, lesc, ia, p) 282 struct device *parent; 283 struct le_softc *lesc; 284 struct isa_attach_args *ia; 285 struct le_isa_params *p; 286 { 287 struct am7990_softc *sc = &lesc->sc_am7990; 288 bus_space_tag_t iot = ia->ia_iot; 289 bus_space_handle_t ioh; 290 bus_dma_tag_t dmat = ia->ia_dmat; 291 bus_dma_segment_t seg; 292 int i, rseg, error; 293 294 printf(": %s Ethernet\n", p->name); 295 296 if (bus_space_map(iot, ia->ia_iobase, p->iosize, 0, &ioh)) 297 panic("%s: can't map io", sc->sc_dev.dv_xname); 298 299 /* 300 * Extract the physical MAC address from the ROM. 301 */ 302 for (i = 0; i < sizeof(sc->sc_enaddr); i++) 303 sc->sc_enaddr[i] = 304 bus_space_read_1(iot, ioh, p->macstart + i * p->macstride); 305 306 lesc->sc_iot = iot; 307 lesc->sc_ioh = ioh; 308 lesc->sc_dmat = dmat; 309 lesc->sc_rap = p->rap; 310 lesc->sc_rdp = p->rdp; 311 312 /* 313 * Allocate a DMA area for the card. 314 */ 315 if (bus_dmamem_alloc(dmat, LE_ISA_MEMSIZE, NBPG, 0, &seg, 1, 316 &rseg, BUS_DMA_NOWAIT)) { 317 printf("%s: couldn't allocate memory for card\n", 318 sc->sc_dev.dv_xname); 319 return; 320 } 321 if (bus_dmamem_map(dmat, &seg, rseg, LE_ISA_MEMSIZE, 322 (caddr_t *)&sc->sc_mem, 323 BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 324 printf("%s: couldn't map memory for card\n", 325 sc->sc_dev.dv_xname); 326 return; 327 } 328 329 /* 330 * Create and load the DMA map for the DMA area. 331 */ 332 if (bus_dmamap_create(dmat, LE_ISA_MEMSIZE, 1, 333 LE_ISA_MEMSIZE, 0, BUS_DMA_NOWAIT, &lesc->sc_dmam)) { 334 printf("%s: couldn't create DMA map\n", 335 sc->sc_dev.dv_xname); 336 bus_dmamem_free(dmat, &seg, rseg); 337 return; 338 } 339 if (bus_dmamap_load(dmat, lesc->sc_dmam, 340 sc->sc_mem, LE_ISA_MEMSIZE, NULL, BUS_DMA_NOWAIT)) { 341 printf("%s: coundn't load DMA map\n", 342 sc->sc_dev.dv_xname); 343 bus_dmamem_free(dmat, &seg, rseg); 344 return; 345 } 346 347 sc->sc_conf3 = 0; 348 sc->sc_addr = lesc->sc_dmam->dm_segs[0].ds_addr; 349 sc->sc_memsize = LE_ISA_MEMSIZE; 350 351 sc->sc_copytodesc = am7990_copytobuf_contig; 352 sc->sc_copyfromdesc = am7990_copyfrombuf_contig; 353 sc->sc_copytobuf = am7990_copytobuf_contig; 354 sc->sc_copyfrombuf = am7990_copyfrombuf_contig; 355 sc->sc_zerobuf = am7990_zerobuf_contig; 356 357 sc->sc_rdcsr = le_isa_rdcsr; 358 sc->sc_wrcsr = le_isa_wrcsr; 359 sc->sc_hwinit = NULL; 360 361 if (ia->ia_drq != DRQUNK) { 362 if ((error = isa_dmacascade(ia->ia_ic, ia->ia_drq)) != 0) { 363 printf("%s: unable to cascade DRQ, error = %d\n", 364 sc->sc_dev.dv_xname, error); 365 return; 366 } 367 } 368 369 lesc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 370 IPL_NET, le_isa_intredge, sc); 371 372 printf("%s", sc->sc_dev.dv_xname); 373 am7990_config(sc); 374 } 375 376 /* 377 * Controller interrupt. 378 */ 379 int 380 le_isa_intredge(arg) 381 void *arg; 382 { 383 384 if (am7990_intr(arg) == 0) 385 return (0); 386 for (;;) 387 if (am7990_intr(arg) == 0) 388 return (1); 389 } 390
Indexes created Wed Oct 01 13:09:50 GMT 2025