if_le_isa.c revision 1.33
1 /* $NetBSD: if_le_isa.c,v 1.33 2002/10/02 02:09:18 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 <sys/cdefs.h> 79 __KERNEL_RCSID(0, "$NetBSD: if_le_isa.c,v 1.33 2002/10/02 02:09:18 thorpej 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 CFATTACH_DECL(nele, sizeof(struct nele_softc), 117 ne2100_isa_probe, le_dummyattach, NULL, NULL); 118 119 CFATTACH_DECL(le_nele, sizeof(struct le_softc), 120 le_dummyprobe, le_ne2100_attach, NULL, NULL); 121 122 CFATTACH_DECL(bicc, sizeof(struct device), 123 bicc_isa_probe, le_dummyattach, NULL, NULL); 124 125 CFATTACH_DECL(le_bicc, sizeof(struct le_softc), 126 le_dummyprobe, le_bicc_attach, NULL, NULL); 127 128 struct le_isa_params { 129 char *name; 130 int iosize, rap, rdp; 131 int macstart, macstride; 132 } ne2100_params = { 133 "NE2100", 134 24, NE2100_RAP, NE2100_RDP, 135 0, 1 136 }, bicc_params = { 137 "BICC Isolan", 138 16, BICC_RAP, BICC_RDP, 139 0, 2 140 }; 141 142 int lance_isa_probe __P((struct isa_attach_args *, 143 struct le_isa_params *, int)); 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_OPT) 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, match->cf_flags)); 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, match->cf_flags)); 210 } 211 212 /* 213 * Determine which chip is present on the card. 214 */ 215 int 216 lance_isa_probe(ia, p, flags) 217 struct isa_attach_args *ia; 218 struct le_isa_params *p; 219 int flags; 220 { 221 bus_space_tag_t iot = ia->ia_iot; 222 bus_space_handle_t ioh; 223 int rap, rdp; 224 int rv = 0; 225 226 if (ia->ia_nio < 1) 227 return (0); 228 if (ia->ia_nirq < 1) 229 return (0); 230 if (ia->ia_ndrq < 1) 231 return (0); 232 233 if (ISA_DIRECT_CONFIG(ia)) 234 return (0); 235 236 /* Disallow wildcarded i/o address. */ 237 if (ia->ia_io[0].ir_addr == ISACF_PORT_DEFAULT) 238 return (0); 239 if (ia->ia_irq[0].ir_irq == ISACF_IRQ_DEFAULT) 240 return (0); 241 if ((flags & LANCEISA_FLAG_LOCALBUS) == 0 && 242 ia->ia_drq[0].ir_drq == ISACF_DRQ_DEFAULT) 243 return (0); 244 245 /* Map i/o space. */ 246 if (bus_space_map(iot, ia->ia_io[0].ir_addr, p->iosize, 0, &ioh)) 247 return (0); 248 249 rap = p->rap; 250 rdp = p->rdp; 251 252 /* Stop the LANCE chip and put it in a known state. */ 253 bus_space_write_2(iot, ioh, rap, LE_CSR0); 254 bus_space_write_2(iot, ioh, rdp, LE_C0_STOP); 255 delay(100); 256 257 bus_space_write_2(iot, ioh, rap, LE_CSR0); 258 if (bus_space_read_2(iot, ioh, rdp) != LE_C0_STOP) 259 goto bad; 260 261 bus_space_write_2(iot, ioh, rap, LE_CSR3); 262 bus_space_write_2(iot, ioh, rdp, 0); 263 264 ia->ia_nio = 1; 265 ia->ia_io[0].ir_size = p->iosize; 266 267 ia->ia_nirq = 1; 268 269 if ((flags & LANCEISA_FLAG_LOCALBUS) != 0 && 270 ia->ia_drq[0].ir_drq == ISACF_DRQ_DEFAULT) 271 ia->ia_ndrq = 0; 272 else 273 ia->ia_ndrq = 1; 274 275 ia->ia_niomem = 0; 276 277 rv = 1; 278 279 bad: 280 bus_space_unmap(iot, ioh, p->iosize); 281 return (rv); 282 } 283 284 void 285 le_dummyattach(parent, self, aux) 286 struct device *parent, *self; 287 void *aux; 288 { 289 printf("\n"); 290 291 config_found(self, aux, 0); 292 } 293 294 int 295 le_dummyprobe(parent, match, aux) 296 struct device *parent; 297 struct cfdata *match; 298 void *aux; 299 { 300 return (1); 301 } 302 303 void 304 le_ne2100_attach(parent, self, aux) 305 struct device *parent, *self; 306 void *aux; 307 { 308 le_isa_attach(parent, (void *)self, aux, &ne2100_params); 309 } 310 311 void 312 le_bicc_attach(parent, self, aux) 313 struct device *parent, *self; 314 void *aux; 315 { 316 le_isa_attach(parent, (void *)self, aux, &bicc_params); 317 } 318 319 void 320 le_isa_attach(parent, lesc, ia, p) 321 struct device *parent; 322 struct le_softc *lesc; 323 struct isa_attach_args *ia; 324 struct le_isa_params *p; 325 { 326 struct lance_softc *sc = &lesc->sc_am7990.lsc; 327 bus_space_tag_t iot = ia->ia_iot; 328 bus_space_handle_t ioh; 329 bus_dma_tag_t dmat = ia->ia_dmat; 330 bus_dma_segment_t seg; 331 int i, rseg, error; 332 333 printf(": %s Ethernet\n", p->name); 334 335 if (bus_space_map(iot, ia->ia_io[0].ir_addr, p->iosize, 0, &ioh)) 336 panic("%s: can't map io", sc->sc_dev.dv_xname); 337 338 /* 339 * Extract the physical MAC address from the ROM. 340 */ 341 for (i = 0; i < sizeof(sc->sc_enaddr); i++) 342 sc->sc_enaddr[i] = 343 bus_space_read_1(iot, ioh, p->macstart + i * p->macstride); 344 345 lesc->sc_iot = iot; 346 lesc->sc_ioh = ioh; 347 lesc->sc_dmat = dmat; 348 lesc->sc_rap = p->rap; 349 lesc->sc_rdp = p->rdp; 350 351 /* 352 * Allocate a DMA area for the card. 353 */ 354 if (bus_dmamem_alloc(dmat, LE_ISA_MEMSIZE, PAGE_SIZE, 0, &seg, 1, 355 &rseg, BUS_DMA_NOWAIT)) { 356 printf("%s: couldn't allocate memory for card\n", 357 sc->sc_dev.dv_xname); 358 return; 359 } 360 if (bus_dmamem_map(dmat, &seg, rseg, LE_ISA_MEMSIZE, 361 (caddr_t *)&sc->sc_mem, 362 BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 363 printf("%s: couldn't map memory for card\n", 364 sc->sc_dev.dv_xname); 365 return; 366 } 367 368 /* 369 * Create and load the DMA map for the DMA area. 370 */ 371 if (bus_dmamap_create(dmat, LE_ISA_MEMSIZE, 1, 372 LE_ISA_MEMSIZE, 0, BUS_DMA_NOWAIT, &lesc->sc_dmam)) { 373 printf("%s: couldn't create DMA map\n", 374 sc->sc_dev.dv_xname); 375 bus_dmamem_free(dmat, &seg, rseg); 376 return; 377 } 378 if (bus_dmamap_load(dmat, lesc->sc_dmam, 379 sc->sc_mem, LE_ISA_MEMSIZE, NULL, BUS_DMA_NOWAIT)) { 380 printf("%s: coundn't load DMA map\n", 381 sc->sc_dev.dv_xname); 382 bus_dmamem_free(dmat, &seg, rseg); 383 return; 384 } 385 386 sc->sc_conf3 = 0; 387 sc->sc_addr = lesc->sc_dmam->dm_segs[0].ds_addr; 388 sc->sc_memsize = LE_ISA_MEMSIZE; 389 390 sc->sc_copytodesc = lance_copytobuf_contig; 391 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 392 sc->sc_copytobuf = lance_copytobuf_contig; 393 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 394 sc->sc_zerobuf = lance_zerobuf_contig; 395 396 sc->sc_rdcsr = le_isa_rdcsr; 397 sc->sc_wrcsr = le_isa_wrcsr; 398 sc->sc_hwinit = NULL; 399 400 if (ia->ia_ndrq > 0) { 401 if ((error = isa_dmacascade(ia->ia_ic, 402 ia->ia_drq[0].ir_drq)) != 0) { 403 printf("%s: unable to cascade DRQ, error = %d\n", 404 sc->sc_dev.dv_xname, error); 405 return; 406 } 407 } 408 409 lesc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 410 IST_EDGE, IPL_NET, le_isa_intredge, sc); 411 412 printf("%s", sc->sc_dev.dv_xname); 413 am7990_config(&lesc->sc_am7990); 414 } 415 416 /* 417 * Controller interrupt. 418 */ 419 int 420 le_isa_intredge(arg) 421 void *arg; 422 { 423 424 if (am7990_intr(arg) == 0) 425 return (0); 426 for (;;) 427 if (am7990_intr(arg) == 0) 428 return (1); 429 } 430
Indexes created Tue Sep 30 20:09:53 GMT 2025