if_le_isa.c revision 1.28
1 /* $NetBSD: if_le_isa.c,v 1.28 2001/11/13 08:01:20 lukem 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 <sys/cdefs.h> 79 __KERNEL_RCSID(0, "$NetBSD: if_le_isa.c,v 1.28 2001/11/13 08:01:20 lukem Exp $"); 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 #include <machine/cpu.h> 95 #include <machine/intr.h> 96 #include <machine/bus.h> 97 98 #include <dev/isa/isareg.h> 99 #include <dev/isa/isavar.h> 100 #include <dev/isa/isadmavar.h> 101 102 #include <dev/ic/lancereg.h> 103 #include <dev/ic/lancevar.h> 104 #include <dev/ic/am7990reg.h> 105 #include <dev/ic/am7990var.h> 106 107 #include <dev/isa/if_levar.h> 108 109 int ne2100_isa_probe __P((struct device *, struct cfdata *, void *)); 110 int bicc_isa_probe __P((struct device *, struct cfdata *, void *)); 111 void le_dummyattach __P((struct device *, struct device *, void *)); 112 int le_dummyprobe __P((struct device *, struct cfdata *, void *)); 113 void le_ne2100_attach __P((struct device *, struct device *, void *)); 114 void le_bicc_attach __P((struct device *, struct device *, void *)); 115 116 struct cfattach nele_ca = { 117 sizeof(struct device), ne2100_isa_probe, le_dummyattach 118 }, le_nele_ca = { 119 sizeof(struct le_softc), le_dummyprobe, le_ne2100_attach 120 }, bicc_ca = { 121 sizeof(struct device), bicc_isa_probe, le_dummyattach 122 }, le_bicc_ca = { 123 sizeof(struct le_softc), le_dummyprobe, le_bicc_attach 124 }; 125 126 struct le_isa_params { 127 char *name; 128 int iosize, rap, rdp; 129 int macstart, macstride; 130 } ne2100_params = { 131 "NE2100", 132 24, NE2100_RAP, NE2100_RDP, 133 0, 1 134 }, bicc_params = { 135 "BICC Isolan", 136 16, BICC_RAP, BICC_RDP, 137 0, 2 138 }; 139 140 int lance_isa_probe __P((struct isa_attach_args *, struct le_isa_params *)); 141 void le_isa_attach __P((struct device *, struct le_softc *, 142 struct isa_attach_args *, struct le_isa_params *)); 143 144 int le_isa_intredge __P((void *)); 145 146 #if defined(_KERNEL_OPT) 147 #include "opt_ddb.h" 148 #endif 149 150 #ifdef DDB 151 #define integrate 152 #define hide 153 #else 154 #define integrate static __inline 155 #define hide static 156 #endif 157 158 hide void le_isa_wrcsr __P((struct lance_softc *, u_int16_t, u_int16_t)); 159 hide u_int16_t le_isa_rdcsr __P((struct lance_softc *, u_int16_t)); 160 161 #define LE_ISA_MEMSIZE 16384 162 163 hide void 164 le_isa_wrcsr(sc, port, val) 165 struct lance_softc *sc; 166 u_int16_t port, val; 167 { 168 struct le_softc *lesc = (struct le_softc *)sc; 169 bus_space_tag_t iot = lesc->sc_iot; 170 bus_space_handle_t ioh = lesc->sc_ioh; 171 172 bus_space_write_2(iot, ioh, lesc->sc_rap, port); 173 bus_space_write_2(iot, ioh, lesc->sc_rdp, val); 174 } 175 176 hide u_int16_t 177 le_isa_rdcsr(sc, port) 178 struct lance_softc *sc; 179 u_int16_t port; 180 { 181 struct le_softc *lesc = (struct le_softc *)sc; 182 bus_space_tag_t iot = lesc->sc_iot; 183 bus_space_handle_t ioh = lesc->sc_ioh; 184 u_int16_t val; 185 186 bus_space_write_2(iot, ioh, lesc->sc_rap, port); 187 val = bus_space_read_2(iot, ioh, lesc->sc_rdp); 188 return (val); 189 } 190 191 int 192 ne2100_isa_probe(parent, match, aux) 193 struct device *parent; 194 struct cfdata *match; 195 void *aux; 196 { 197 return (lance_isa_probe(aux, &ne2100_params)); 198 } 199 200 int 201 bicc_isa_probe(parent, match, aux) 202 struct device *parent; 203 struct cfdata *match; 204 void *aux; 205 { 206 return (lance_isa_probe(aux, &bicc_params)); 207 } 208 209 /* 210 * Determine which chip is present on the card. 211 */ 212 int 213 lance_isa_probe(ia, p) 214 struct isa_attach_args *ia; 215 struct le_isa_params *p; 216 { 217 bus_space_tag_t iot = ia->ia_iot; 218 bus_space_handle_t ioh; 219 int rap, rdp; 220 int rv = 0; 221 222 /* Disallow wildcarded i/o address. */ 223 if (ia->ia_iobase == ISACF_PORT_DEFAULT) 224 return (0); 225 226 /* Map i/o space. */ 227 if (bus_space_map(iot, ia->ia_iobase, p->iosize, 0, &ioh)) 228 return (0); 229 230 rap = p->rap; 231 rdp = p->rdp; 232 233 /* Stop the LANCE chip and put it in a known state. */ 234 bus_space_write_2(iot, ioh, rap, LE_CSR0); 235 bus_space_write_2(iot, ioh, rdp, LE_C0_STOP); 236 delay(100); 237 238 bus_space_write_2(iot, ioh, rap, LE_CSR0); 239 if (bus_space_read_2(iot, ioh, rdp) != LE_C0_STOP) 240 goto bad; 241 242 bus_space_write_2(iot, ioh, rap, LE_CSR3); 243 bus_space_write_2(iot, ioh, rdp, 0); 244 245 ia->ia_iosize = p->iosize; 246 rv = 1; 247 248 bad: 249 bus_space_unmap(iot, ioh, p->iosize); 250 return (rv); 251 } 252 253 void 254 le_dummyattach(parent, self, aux) 255 struct device *parent, *self; 256 void *aux; 257 { 258 printf("\n"); 259 260 config_found(self, aux, 0); 261 } 262 263 int 264 le_dummyprobe(parent, match, aux) 265 struct device *parent; 266 struct cfdata *match; 267 void *aux; 268 { 269 return (1); 270 } 271 272 void 273 le_ne2100_attach(parent, self, aux) 274 struct device *parent, *self; 275 void *aux; 276 { 277 le_isa_attach(parent, (void *)self, aux, &ne2100_params); 278 } 279 280 void 281 le_bicc_attach(parent, self, aux) 282 struct device *parent, *self; 283 void *aux; 284 { 285 le_isa_attach(parent, (void *)self, aux, &bicc_params); 286 } 287 288 void 289 le_isa_attach(parent, lesc, ia, p) 290 struct device *parent; 291 struct le_softc *lesc; 292 struct isa_attach_args *ia; 293 struct le_isa_params *p; 294 { 295 struct lance_softc *sc = &lesc->sc_am7990.lsc; 296 bus_space_tag_t iot = ia->ia_iot; 297 bus_space_handle_t ioh; 298 bus_dma_tag_t dmat = ia->ia_dmat; 299 bus_dma_segment_t seg; 300 int i, rseg, error; 301 302 printf(": %s Ethernet\n", p->name); 303 304 if (bus_space_map(iot, ia->ia_iobase, p->iosize, 0, &ioh)) 305 panic("%s: can't map io", sc->sc_dev.dv_xname); 306 307 /* 308 * Extract the physical MAC address from the ROM. 309 */ 310 for (i = 0; i < sizeof(sc->sc_enaddr); i++) 311 sc->sc_enaddr[i] = 312 bus_space_read_1(iot, ioh, p->macstart + i * p->macstride); 313 314 lesc->sc_iot = iot; 315 lesc->sc_ioh = ioh; 316 lesc->sc_dmat = dmat; 317 lesc->sc_rap = p->rap; 318 lesc->sc_rdp = p->rdp; 319 320 /* 321 * Allocate a DMA area for the card. 322 */ 323 if (bus_dmamem_alloc(dmat, LE_ISA_MEMSIZE, PAGE_SIZE, 0, &seg, 1, 324 &rseg, BUS_DMA_NOWAIT)) { 325 printf("%s: couldn't allocate memory for card\n", 326 sc->sc_dev.dv_xname); 327 return; 328 } 329 if (bus_dmamem_map(dmat, &seg, rseg, LE_ISA_MEMSIZE, 330 (caddr_t *)&sc->sc_mem, 331 BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 332 printf("%s: couldn't map memory for card\n", 333 sc->sc_dev.dv_xname); 334 return; 335 } 336 337 /* 338 * Create and load the DMA map for the DMA area. 339 */ 340 if (bus_dmamap_create(dmat, LE_ISA_MEMSIZE, 1, 341 LE_ISA_MEMSIZE, 0, BUS_DMA_NOWAIT, &lesc->sc_dmam)) { 342 printf("%s: couldn't create DMA map\n", 343 sc->sc_dev.dv_xname); 344 bus_dmamem_free(dmat, &seg, rseg); 345 return; 346 } 347 if (bus_dmamap_load(dmat, lesc->sc_dmam, 348 sc->sc_mem, LE_ISA_MEMSIZE, NULL, BUS_DMA_NOWAIT)) { 349 printf("%s: coundn't load DMA map\n", 350 sc->sc_dev.dv_xname); 351 bus_dmamem_free(dmat, &seg, rseg); 352 return; 353 } 354 355 sc->sc_conf3 = 0; 356 sc->sc_addr = lesc->sc_dmam->dm_segs[0].ds_addr; 357 sc->sc_memsize = LE_ISA_MEMSIZE; 358 359 sc->sc_copytodesc = lance_copytobuf_contig; 360 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 361 sc->sc_copytobuf = lance_copytobuf_contig; 362 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 363 sc->sc_zerobuf = lance_zerobuf_contig; 364 365 sc->sc_rdcsr = le_isa_rdcsr; 366 sc->sc_wrcsr = le_isa_wrcsr; 367 sc->sc_hwinit = NULL; 368 369 if (ia->ia_drq != DRQUNK) { 370 if ((error = isa_dmacascade(ia->ia_ic, ia->ia_drq)) != 0) { 371 printf("%s: unable to cascade DRQ, error = %d\n", 372 sc->sc_dev.dv_xname, error); 373 return; 374 } 375 } 376 377 lesc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 378 IPL_NET, le_isa_intredge, sc); 379 380 printf("%s", sc->sc_dev.dv_xname); 381 am7990_config(&lesc->sc_am7990); 382 } 383 384 /* 385 * Controller interrupt. 386 */ 387 int 388 le_isa_intredge(arg) 389 void *arg; 390 { 391 392 if (am7990_intr(arg) == 0) 393 return (0); 394 for (;;) 395 if (am7990_intr(arg) == 0) 396 return (1); 397 } 398
Indexes created Wed Oct 01 13:09:50 GMT 2025