if_le_isa.c revision 1.31
1 /* $NetBSD: if_le_isa.c,v 1.31 2002/06/29 05:30:44 rafal 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 1.31 2002/06/29 05:30:44 rafal 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 *, 141 struct le_isa_params *, int)); 142 void le_isa_attach __P((struct device *, struct le_softc *, 143 struct isa_attach_args *, struct le_isa_params *)); 144 145 int le_isa_intredge __P((void *)); 146 147 #if defined(_KERNEL_OPT) 148 #include "opt_ddb.h" 149 #endif 150 151 #ifdef DDB 152 #define integrate 153 #define hide 154 #else 155 #define integrate static __inline 156 #define hide static 157 #endif 158 159 hide void le_isa_wrcsr __P((struct lance_softc *, u_int16_t, u_int16_t)); 160 hide u_int16_t le_isa_rdcsr __P((struct lance_softc *, u_int16_t)); 161 162 #define LE_ISA_MEMSIZE 16384 163 164 hide void 165 le_isa_wrcsr(sc, port, val) 166 struct lance_softc *sc; 167 u_int16_t port, val; 168 { 169 struct le_softc *lesc = (struct le_softc *)sc; 170 bus_space_tag_t iot = lesc->sc_iot; 171 bus_space_handle_t ioh = lesc->sc_ioh; 172 173 bus_space_write_2(iot, ioh, lesc->sc_rap, port); 174 bus_space_write_2(iot, ioh, lesc->sc_rdp, val); 175 } 176 177 hide u_int16_t 178 le_isa_rdcsr(sc, port) 179 struct lance_softc *sc; 180 u_int16_t port; 181 { 182 struct le_softc *lesc = (struct le_softc *)sc; 183 bus_space_tag_t iot = lesc->sc_iot; 184 bus_space_handle_t ioh = lesc->sc_ioh; 185 u_int16_t val; 186 187 bus_space_write_2(iot, ioh, lesc->sc_rap, port); 188 val = bus_space_read_2(iot, ioh, lesc->sc_rdp); 189 return (val); 190 } 191 192 int 193 ne2100_isa_probe(parent, match, aux) 194 struct device *parent; 195 struct cfdata *match; 196 void *aux; 197 { 198 return (lance_isa_probe(aux, &ne2100_params, match->cf_flags)); 199 } 200 201 int 202 bicc_isa_probe(parent, match, aux) 203 struct device *parent; 204 struct cfdata *match; 205 void *aux; 206 { 207 return (lance_isa_probe(aux, &bicc_params, match->cf_flags)); 208 } 209 210 /* 211 * Determine which chip is present on the card. 212 */ 213 int 214 lance_isa_probe(ia, p, flags) 215 struct isa_attach_args *ia; 216 struct le_isa_params *p; 217 int flags; 218 { 219 bus_space_tag_t iot = ia->ia_iot; 220 bus_space_handle_t ioh; 221 int rap, rdp; 222 int rv = 0; 223 224 if (ia->ia_nio < 1) 225 return (0); 226 if (ia->ia_nirq < 1) 227 return (0); 228 if (ia->ia_ndrq < 1) 229 return (0); 230 231 if (ISA_DIRECT_CONFIG(ia)) 232 return (0); 233 234 /* Disallow wildcarded i/o address. */ 235 if (ia->ia_io[0].ir_addr == ISACF_PORT_DEFAULT) 236 return (0); 237 if (ia->ia_irq[0].ir_irq == ISACF_IRQ_DEFAULT) 238 return (0); 239 if ((flags & LANCEISA_FLAG_LOCALBUS) == 0 && 240 ia->ia_drq[0].ir_drq == ISACF_DRQ_DEFAULT) 241 return (0); 242 243 /* Map i/o space. */ 244 if (bus_space_map(iot, ia->ia_io[0].ir_addr, p->iosize, 0, &ioh)) 245 return (0); 246 247 rap = p->rap; 248 rdp = p->rdp; 249 250 /* Stop the LANCE chip and put it in a known state. */ 251 bus_space_write_2(iot, ioh, rap, LE_CSR0); 252 bus_space_write_2(iot, ioh, rdp, LE_C0_STOP); 253 delay(100); 254 255 bus_space_write_2(iot, ioh, rap, LE_CSR0); 256 if (bus_space_read_2(iot, ioh, rdp) != LE_C0_STOP) 257 goto bad; 258 259 bus_space_write_2(iot, ioh, rap, LE_CSR3); 260 bus_space_write_2(iot, ioh, rdp, 0); 261 262 ia->ia_nio = 1; 263 ia->ia_io[0].ir_size = p->iosize; 264 265 ia->ia_nirq = 1; 266 267 if ((flags & LANCEISA_FLAG_LOCALBUS) != 0 && 268 ia->ia_drq[0].ir_drq == ISACF_DRQ_DEFAULT) 269 ia->ia_ndrq = 0; 270 else 271 ia->ia_ndrq = 1; 272 273 ia->ia_niomem = 0; 274 275 rv = 1; 276 277 bad: 278 bus_space_unmap(iot, ioh, p->iosize); 279 return (rv); 280 } 281 282 void 283 le_dummyattach(parent, self, aux) 284 struct device *parent, *self; 285 void *aux; 286 { 287 printf("\n"); 288 289 config_found(self, aux, 0); 290 } 291 292 int 293 le_dummyprobe(parent, match, aux) 294 struct device *parent; 295 struct cfdata *match; 296 void *aux; 297 { 298 return (1); 299 } 300 301 void 302 le_ne2100_attach(parent, self, aux) 303 struct device *parent, *self; 304 void *aux; 305 { 306 le_isa_attach(parent, (void *)self, aux, &ne2100_params); 307 } 308 309 void 310 le_bicc_attach(parent, self, aux) 311 struct device *parent, *self; 312 void *aux; 313 { 314 le_isa_attach(parent, (void *)self, aux, &bicc_params); 315 } 316 317 void 318 le_isa_attach(parent, lesc, ia, p) 319 struct device *parent; 320 struct le_softc *lesc; 321 struct isa_attach_args *ia; 322 struct le_isa_params *p; 323 { 324 struct lance_softc *sc = &lesc->sc_am7990.lsc; 325 bus_space_tag_t iot = ia->ia_iot; 326 bus_space_handle_t ioh; 327 bus_dma_tag_t dmat = ia->ia_dmat; 328 bus_dma_segment_t seg; 329 int i, rseg, error; 330 331 printf(": %s Ethernet\n", p->name); 332 333 if (bus_space_map(iot, ia->ia_io[0].ir_addr, p->iosize, 0, &ioh)) 334 panic("%s: can't map io", sc->sc_dev.dv_xname); 335 336 /* 337 * Extract the physical MAC address from the ROM. 338 */ 339 for (i = 0; i < sizeof(sc->sc_enaddr); i++) 340 sc->sc_enaddr[i] = 341 bus_space_read_1(iot, ioh, p->macstart + i * p->macstride); 342 343 lesc->sc_iot = iot; 344 lesc->sc_ioh = ioh; 345 lesc->sc_dmat = dmat; 346 lesc->sc_rap = p->rap; 347 lesc->sc_rdp = p->rdp; 348 349 /* 350 * Allocate a DMA area for the card. 351 */ 352 if (bus_dmamem_alloc(dmat, LE_ISA_MEMSIZE, PAGE_SIZE, 0, &seg, 1, 353 &rseg, BUS_DMA_NOWAIT)) { 354 printf("%s: couldn't allocate memory for card\n", 355 sc->sc_dev.dv_xname); 356 return; 357 } 358 if (bus_dmamem_map(dmat, &seg, rseg, LE_ISA_MEMSIZE, 359 (caddr_t *)&sc->sc_mem, 360 BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 361 printf("%s: couldn't map memory for card\n", 362 sc->sc_dev.dv_xname); 363 return; 364 } 365 366 /* 367 * Create and load the DMA map for the DMA area. 368 */ 369 if (bus_dmamap_create(dmat, LE_ISA_MEMSIZE, 1, 370 LE_ISA_MEMSIZE, 0, BUS_DMA_NOWAIT, &lesc->sc_dmam)) { 371 printf("%s: couldn't create DMA map\n", 372 sc->sc_dev.dv_xname); 373 bus_dmamem_free(dmat, &seg, rseg); 374 return; 375 } 376 if (bus_dmamap_load(dmat, lesc->sc_dmam, 377 sc->sc_mem, LE_ISA_MEMSIZE, NULL, BUS_DMA_NOWAIT)) { 378 printf("%s: coundn't load DMA map\n", 379 sc->sc_dev.dv_xname); 380 bus_dmamem_free(dmat, &seg, rseg); 381 return; 382 } 383 384 sc->sc_conf3 = 0; 385 sc->sc_addr = lesc->sc_dmam->dm_segs[0].ds_addr; 386 sc->sc_memsize = LE_ISA_MEMSIZE; 387 388 sc->sc_copytodesc = lance_copytobuf_contig; 389 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 390 sc->sc_copytobuf = lance_copytobuf_contig; 391 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 392 sc->sc_zerobuf = lance_zerobuf_contig; 393 394 sc->sc_rdcsr = le_isa_rdcsr; 395 sc->sc_wrcsr = le_isa_wrcsr; 396 sc->sc_hwinit = NULL; 397 398 if (ia->ia_ndrq > 0) { 399 if ((error = isa_dmacascade(ia->ia_ic, 400 ia->ia_drq[0].ir_drq)) != 0) { 401 printf("%s: unable to cascade DRQ, error = %d\n", 402 sc->sc_dev.dv_xname, error); 403 return; 404 } 405 } 406 407 lesc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 408 IST_EDGE, IPL_NET, le_isa_intredge, sc); 409 410 printf("%s", sc->sc_dev.dv_xname); 411 am7990_config(&lesc->sc_am7990); 412 } 413 414 /* 415 * Controller interrupt. 416 */ 417 int 418 le_isa_intredge(arg) 419 void *arg; 420 { 421 422 if (am7990_intr(arg) == 0) 423 return (0); 424 for (;;) 425 if (am7990_intr(arg) == 0) 426 return (1); 427 } 428
Indexes created Wed Oct 01 13:09:50 GMT 2025