if_le_isa.c revision 1.41
1 /* $NetBSD: if_le_isa.c,v 1.41 2005/12/24 20:27:41 perry 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. Neither the name of the University nor the names of its contributors 56 * may be used to endorse or promote products derived from this software 57 * without specific prior written permission. 58 * 59 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 61 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 62 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 63 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 64 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 65 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 66 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 67 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 69 * SUCH DAMAGE. 70 * 71 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 72 */ 73 74 #include <sys/cdefs.h> 75 __KERNEL_RCSID(0, "$NetBSD: if_le_isa.c,v 1.41 2005/12/24 20:27:41 perry Exp $"); 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/mbuf.h> 80 #include <sys/syslog.h> 81 #include <sys/socket.h> 82 #include <sys/device.h> 83 84 #include <uvm/uvm_extern.h> 85 86 #include <net/if.h> 87 #include <net/if_ether.h> 88 #include <net/if_media.h> 89 90 #include <machine/cpu.h> 91 #include <machine/intr.h> 92 #include <machine/bus.h> 93 94 #include <dev/isa/isareg.h> 95 #include <dev/isa/isavar.h> 96 #include <dev/isa/isadmavar.h> 97 98 #include <dev/ic/lancereg.h> 99 #include <dev/ic/lancevar.h> 100 #include <dev/ic/am7990reg.h> 101 #include <dev/ic/am7990var.h> 102 103 #include <dev/isa/if_levar.h> 104 105 int ne2100_isa_probe(struct device *, struct cfdata *, void *); 106 int bicc_isa_probe(struct device *, struct cfdata *, void *); 107 void le_dummyattach(struct device *, struct device *, void *); 108 int le_dummyprobe(struct device *, struct cfdata *, void *); 109 void le_ne2100_attach(struct device *, struct device *, void *); 110 void le_bicc_attach(struct device *, struct device *, void *); 111 112 CFATTACH_DECL(nele, sizeof(struct device), 113 ne2100_isa_probe, le_dummyattach, NULL, NULL); 114 115 CFATTACH_DECL(le_nele, sizeof(struct le_softc), 116 le_dummyprobe, le_ne2100_attach, NULL, NULL); 117 118 CFATTACH_DECL(bicc, sizeof(struct device), 119 bicc_isa_probe, le_dummyattach, NULL, NULL); 120 121 CFATTACH_DECL(le_bicc, sizeof(struct le_softc), 122 le_dummyprobe, le_bicc_attach, NULL, NULL); 123 124 struct le_isa_params { 125 const char *name; 126 int iosize, rap, rdp; 127 int macstart, macstride; 128 } ne2100_params = { 129 "NE2100", 130 24, NE2100_RAP, NE2100_RDP, 131 0, 1 132 }, bicc_params = { 133 "BICC Isolan", 134 16, BICC_RAP, BICC_RDP, 135 0, 2 136 }; 137 138 int lance_isa_probe(struct isa_attach_args *, struct le_isa_params *, int); 139 void le_isa_attach(struct device *, struct le_softc *, 140 struct isa_attach_args *, struct le_isa_params *); 141 142 int le_isa_intredge(void *); 143 144 #if defined(_KERNEL_OPT) 145 #include "opt_ddb.h" 146 #endif 147 148 #ifdef DDB 149 #define integrate 150 #define hide 151 #else 152 #define integrate static inline 153 #define hide static 154 #endif 155 156 hide void le_isa_wrcsr(struct lance_softc *, u_int16_t, u_int16_t); 157 hide u_int16_t le_isa_rdcsr(struct lance_softc *, u_int16_t); 158 159 #define LE_ISA_MEMSIZE 16384 160 161 hide void 162 le_isa_wrcsr(sc, port, val) 163 struct lance_softc *sc; 164 u_int16_t port, val; 165 { 166 struct le_softc *lesc = (struct le_softc *)sc; 167 bus_space_tag_t iot = lesc->sc_iot; 168 bus_space_handle_t ioh = lesc->sc_ioh; 169 170 bus_space_write_2(iot, ioh, lesc->sc_rap, port); 171 bus_space_write_2(iot, ioh, lesc->sc_rdp, val); 172 } 173 174 hide u_int16_t 175 le_isa_rdcsr(sc, port) 176 struct lance_softc *sc; 177 u_int16_t port; 178 { 179 struct le_softc *lesc = (struct le_softc *)sc; 180 bus_space_tag_t iot = lesc->sc_iot; 181 bus_space_handle_t ioh = lesc->sc_ioh; 182 u_int16_t val; 183 184 bus_space_write_2(iot, ioh, lesc->sc_rap, port); 185 val = bus_space_read_2(iot, ioh, lesc->sc_rdp); 186 return (val); 187 } 188 189 int 190 ne2100_isa_probe(parent, match, aux) 191 struct device *parent; 192 struct cfdata *match; 193 void *aux; 194 { 195 return (lance_isa_probe(aux, &ne2100_params, match->cf_flags)); 196 } 197 198 int 199 bicc_isa_probe(parent, match, aux) 200 struct device *parent; 201 struct cfdata *match; 202 void *aux; 203 { 204 return (lance_isa_probe(aux, &bicc_params, match->cf_flags)); 205 } 206 207 /* 208 * Determine which chip is present on the card. 209 */ 210 int 211 lance_isa_probe(ia, p, flags) 212 struct isa_attach_args *ia; 213 struct le_isa_params *p; 214 int flags; 215 { 216 bus_space_tag_t iot = ia->ia_iot; 217 bus_space_handle_t ioh; 218 int rap, rdp; 219 int rv = 0; 220 221 if (ia->ia_nio < 1) 222 return (0); 223 if (ia->ia_nirq < 1) 224 return (0); 225 if (ia->ia_ndrq < 1) 226 return (0); 227 228 if (ISA_DIRECT_CONFIG(ia)) 229 return (0); 230 231 /* Disallow wildcarded i/o address. */ 232 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) 233 return (0); 234 if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ) 235 return (0); 236 if ((flags & LANCEISA_FLAG_LOCALBUS) == 0 && 237 ia->ia_drq[0].ir_drq == ISA_UNKNOWN_DRQ) 238 return (0); 239 240 /* Map i/o space. */ 241 if (bus_space_map(iot, ia->ia_io[0].ir_addr, p->iosize, 0, &ioh)) 242 return (0); 243 244 rap = p->rap; 245 rdp = p->rdp; 246 247 /* Stop the LANCE chip and put it in a known state. */ 248 bus_space_write_2(iot, ioh, rap, LE_CSR0); 249 bus_space_write_2(iot, ioh, rdp, LE_C0_STOP); 250 delay(100); 251 252 bus_space_write_2(iot, ioh, rap, LE_CSR0); 253 if (bus_space_read_2(iot, ioh, rdp) != LE_C0_STOP) 254 goto bad; 255 256 bus_space_write_2(iot, ioh, rap, LE_CSR3); 257 bus_space_write_2(iot, ioh, rdp, 0); 258 259 ia->ia_nio = 1; 260 ia->ia_io[0].ir_size = p->iosize; 261 262 ia->ia_nirq = 1; 263 264 if ((flags & LANCEISA_FLAG_LOCALBUS) != 0 && 265 ia->ia_drq[0].ir_drq == ISA_UNKNOWN_DRQ) 266 ia->ia_ndrq = 0; 267 else 268 ia->ia_ndrq = 1; 269 270 ia->ia_niomem = 0; 271 272 rv = 1; 273 274 bad: 275 bus_space_unmap(iot, ioh, p->iosize); 276 return (rv); 277 } 278 279 void 280 le_dummyattach(parent, self, aux) 281 struct device *parent, *self; 282 void *aux; 283 { 284 printf("\n"); 285 286 config_found(self, aux, 0); 287 } 288 289 int 290 le_dummyprobe(parent, match, aux) 291 struct device *parent; 292 struct cfdata *match; 293 void *aux; 294 { 295 return (1); 296 } 297 298 void 299 le_ne2100_attach(parent, self, aux) 300 struct device *parent, *self; 301 void *aux; 302 { 303 le_isa_attach(parent, (void *)self, aux, &ne2100_params); 304 } 305 306 void 307 le_bicc_attach(parent, self, aux) 308 struct device *parent, *self; 309 void *aux; 310 { 311 le_isa_attach(parent, (void *)self, aux, &bicc_params); 312 } 313 314 void 315 le_isa_attach(parent, lesc, ia, p) 316 struct device *parent; 317 struct le_softc *lesc; 318 struct isa_attach_args *ia; 319 struct le_isa_params *p; 320 { 321 struct lance_softc *sc = &lesc->sc_am7990.lsc; 322 bus_space_tag_t iot = ia->ia_iot; 323 bus_space_handle_t ioh; 324 bus_dma_tag_t dmat = ia->ia_dmat; 325 bus_dma_segment_t seg; 326 int i, rseg, error; 327 328 printf(": %s Ethernet\n", p->name); 329 330 if (bus_space_map(iot, ia->ia_io[0].ir_addr, p->iosize, 0, &ioh)) 331 panic("%s: can't map io", sc->sc_dev.dv_xname); 332 333 /* 334 * Extract the physical MAC address from the ROM. 335 */ 336 for (i = 0; i < sizeof(sc->sc_enaddr); i++) 337 sc->sc_enaddr[i] = 338 bus_space_read_1(iot, ioh, p->macstart + i * p->macstride); 339 340 lesc->sc_iot = iot; 341 lesc->sc_ioh = ioh; 342 lesc->sc_dmat = dmat; 343 lesc->sc_rap = p->rap; 344 lesc->sc_rdp = p->rdp; 345 346 /* 347 * Allocate a DMA area for the card. 348 */ 349 if (bus_dmamem_alloc(dmat, LE_ISA_MEMSIZE, PAGE_SIZE, 0, &seg, 1, 350 &rseg, BUS_DMA_NOWAIT)) { 351 printf("%s: couldn't allocate memory for card\n", 352 sc->sc_dev.dv_xname); 353 return; 354 } 355 if (bus_dmamem_map(dmat, &seg, rseg, LE_ISA_MEMSIZE, 356 (caddr_t *)&sc->sc_mem, 357 BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 358 printf("%s: couldn't map memory for card\n", 359 sc->sc_dev.dv_xname); 360 return; 361 } 362 363 /* 364 * Create and load the DMA map for the DMA area. 365 */ 366 if (bus_dmamap_create(dmat, LE_ISA_MEMSIZE, 1, 367 LE_ISA_MEMSIZE, 0, BUS_DMA_NOWAIT, &lesc->sc_dmam)) { 368 printf("%s: couldn't create DMA map\n", 369 sc->sc_dev.dv_xname); 370 bus_dmamem_free(dmat, &seg, rseg); 371 return; 372 } 373 if (bus_dmamap_load(dmat, lesc->sc_dmam, 374 sc->sc_mem, LE_ISA_MEMSIZE, NULL, BUS_DMA_NOWAIT)) { 375 printf("%s: coundn't load DMA map\n", 376 sc->sc_dev.dv_xname); 377 bus_dmamem_free(dmat, &seg, rseg); 378 return; 379 } 380 381 sc->sc_conf3 = 0; 382 sc->sc_addr = lesc->sc_dmam->dm_segs[0].ds_addr; 383 sc->sc_memsize = LE_ISA_MEMSIZE; 384 385 sc->sc_copytodesc = lance_copytobuf_contig; 386 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 387 sc->sc_copytobuf = lance_copytobuf_contig; 388 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 389 sc->sc_zerobuf = lance_zerobuf_contig; 390 391 sc->sc_rdcsr = le_isa_rdcsr; 392 sc->sc_wrcsr = le_isa_wrcsr; 393 sc->sc_hwinit = NULL; 394 395 if (ia->ia_ndrq > 0) { 396 if ((error = isa_dmacascade(ia->ia_ic, 397 ia->ia_drq[0].ir_drq)) != 0) { 398 printf("%s: unable to cascade DRQ, error = %d\n", 399 sc->sc_dev.dv_xname, error); 400 return; 401 } 402 } 403 404 lesc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 405 IST_EDGE, IPL_NET, le_isa_intredge, sc); 406 407 printf("%s", sc->sc_dev.dv_xname); 408 am7990_config(&lesc->sc_am7990); 409 } 410 411 /* 412 * Controller interrupt. 413 */ 414 int 415 le_isa_intredge(arg) 416 void *arg; 417 { 418 419 if (am7990_intr(arg) == 0) 420 return (0); 421 for (;;) 422 if (am7990_intr(arg) == 0) 423 return (1); 424 } 425
Indexes created Tue Sep 30 20:09:53 GMT 2025