if_le_isa.c revision 1.35
1 /* $NetBSD: if_le_isa.c,v 1.35 2003/08/07 16:31:07 agc 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 1.35 2003/08/07 16:31:07 agc 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 __P((struct device *, struct cfdata *, void *)); 106 int bicc_isa_probe __P((struct device *, struct cfdata *, void *)); 107 void le_dummyattach __P((struct device *, struct device *, void *)); 108 int le_dummyprobe __P((struct device *, struct cfdata *, void *)); 109 void le_ne2100_attach __P((struct device *, struct device *, void *)); 110 void le_bicc_attach __P((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 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 __P((struct isa_attach_args *, 139 struct le_isa_params *, int)); 140 void le_isa_attach __P((struct device *, struct le_softc *, 141 struct isa_attach_args *, struct le_isa_params *)); 142 143 int le_isa_intredge __P((void *)); 144 145 #if defined(_KERNEL_OPT) 146 #include "opt_ddb.h" 147 #endif 148 149 #ifdef DDB 150 #define integrate 151 #define hide 152 #else 153 #define integrate static __inline 154 #define hide static 155 #endif 156 157 hide void le_isa_wrcsr __P((struct lance_softc *, u_int16_t, u_int16_t)); 158 hide u_int16_t le_isa_rdcsr __P((struct lance_softc *, u_int16_t)); 159 160 #define LE_ISA_MEMSIZE 16384 161 162 hide void 163 le_isa_wrcsr(sc, port, val) 164 struct lance_softc *sc; 165 u_int16_t port, val; 166 { 167 struct le_softc *lesc = (struct le_softc *)sc; 168 bus_space_tag_t iot = lesc->sc_iot; 169 bus_space_handle_t ioh = lesc->sc_ioh; 170 171 bus_space_write_2(iot, ioh, lesc->sc_rap, port); 172 bus_space_write_2(iot, ioh, lesc->sc_rdp, val); 173 } 174 175 hide u_int16_t 176 le_isa_rdcsr(sc, port) 177 struct lance_softc *sc; 178 u_int16_t port; 179 { 180 struct le_softc *lesc = (struct le_softc *)sc; 181 bus_space_tag_t iot = lesc->sc_iot; 182 bus_space_handle_t ioh = lesc->sc_ioh; 183 u_int16_t val; 184 185 bus_space_write_2(iot, ioh, lesc->sc_rap, port); 186 val = bus_space_read_2(iot, ioh, lesc->sc_rdp); 187 return (val); 188 } 189 190 int 191 ne2100_isa_probe(parent, match, aux) 192 struct device *parent; 193 struct cfdata *match; 194 void *aux; 195 { 196 return (lance_isa_probe(aux, &ne2100_params, match->cf_flags)); 197 } 198 199 int 200 bicc_isa_probe(parent, match, aux) 201 struct device *parent; 202 struct cfdata *match; 203 void *aux; 204 { 205 return (lance_isa_probe(aux, &bicc_params, match->cf_flags)); 206 } 207 208 /* 209 * Determine which chip is present on the card. 210 */ 211 int 212 lance_isa_probe(ia, p, flags) 213 struct isa_attach_args *ia; 214 struct le_isa_params *p; 215 int flags; 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 if (ia->ia_nio < 1) 223 return (0); 224 if (ia->ia_nirq < 1) 225 return (0); 226 if (ia->ia_ndrq < 1) 227 return (0); 228 229 if (ISA_DIRECT_CONFIG(ia)) 230 return (0); 231 232 /* Disallow wildcarded i/o address. */ 233 if (ia->ia_io[0].ir_addr == ISACF_PORT_DEFAULT) 234 return (0); 235 if (ia->ia_irq[0].ir_irq == ISACF_IRQ_DEFAULT) 236 return (0); 237 if ((flags & LANCEISA_FLAG_LOCALBUS) == 0 && 238 ia->ia_drq[0].ir_drq == ISACF_DRQ_DEFAULT) 239 return (0); 240 241 /* Map i/o space. */ 242 if (bus_space_map(iot, ia->ia_io[0].ir_addr, p->iosize, 0, &ioh)) 243 return (0); 244 245 rap = p->rap; 246 rdp = p->rdp; 247 248 /* Stop the LANCE chip and put it in a known state. */ 249 bus_space_write_2(iot, ioh, rap, LE_CSR0); 250 bus_space_write_2(iot, ioh, rdp, LE_C0_STOP); 251 delay(100); 252 253 bus_space_write_2(iot, ioh, rap, LE_CSR0); 254 if (bus_space_read_2(iot, ioh, rdp) != LE_C0_STOP) 255 goto bad; 256 257 bus_space_write_2(iot, ioh, rap, LE_CSR3); 258 bus_space_write_2(iot, ioh, rdp, 0); 259 260 ia->ia_nio = 1; 261 ia->ia_io[0].ir_size = p->iosize; 262 263 ia->ia_nirq = 1; 264 265 if ((flags & LANCEISA_FLAG_LOCALBUS) != 0 && 266 ia->ia_drq[0].ir_drq == ISACF_DRQ_DEFAULT) 267 ia->ia_ndrq = 0; 268 else 269 ia->ia_ndrq = 1; 270 271 ia->ia_niomem = 0; 272 273 rv = 1; 274 275 bad: 276 bus_space_unmap(iot, ioh, p->iosize); 277 return (rv); 278 } 279 280 void 281 le_dummyattach(parent, self, aux) 282 struct device *parent, *self; 283 void *aux; 284 { 285 printf("\n"); 286 287 config_found(self, aux, 0); 288 } 289 290 int 291 le_dummyprobe(parent, match, aux) 292 struct device *parent; 293 struct cfdata *match; 294 void *aux; 295 { 296 return (1); 297 } 298 299 void 300 le_ne2100_attach(parent, self, aux) 301 struct device *parent, *self; 302 void *aux; 303 { 304 le_isa_attach(parent, (void *)self, aux, &ne2100_params); 305 } 306 307 void 308 le_bicc_attach(parent, self, aux) 309 struct device *parent, *self; 310 void *aux; 311 { 312 le_isa_attach(parent, (void *)self, aux, &bicc_params); 313 } 314 315 void 316 le_isa_attach(parent, lesc, ia, p) 317 struct device *parent; 318 struct le_softc *lesc; 319 struct isa_attach_args *ia; 320 struct le_isa_params *p; 321 { 322 struct lance_softc *sc = &lesc->sc_am7990.lsc; 323 bus_space_tag_t iot = ia->ia_iot; 324 bus_space_handle_t ioh; 325 bus_dma_tag_t dmat = ia->ia_dmat; 326 bus_dma_segment_t seg; 327 int i, rseg, error; 328 329 printf(": %s Ethernet\n", p->name); 330 331 if (bus_space_map(iot, ia->ia_io[0].ir_addr, p->iosize, 0, &ioh)) 332 panic("%s: can't map io", sc->sc_dev.dv_xname); 333 334 /* 335 * Extract the physical MAC address from the ROM. 336 */ 337 for (i = 0; i < sizeof(sc->sc_enaddr); i++) 338 sc->sc_enaddr[i] = 339 bus_space_read_1(iot, ioh, p->macstart + i * p->macstride); 340 341 lesc->sc_iot = iot; 342 lesc->sc_ioh = ioh; 343 lesc->sc_dmat = dmat; 344 lesc->sc_rap = p->rap; 345 lesc->sc_rdp = p->rdp; 346 347 /* 348 * Allocate a DMA area for the card. 349 */ 350 if (bus_dmamem_alloc(dmat, LE_ISA_MEMSIZE, PAGE_SIZE, 0, &seg, 1, 351 &rseg, BUS_DMA_NOWAIT)) { 352 printf("%s: couldn't allocate memory for card\n", 353 sc->sc_dev.dv_xname); 354 return; 355 } 356 if (bus_dmamem_map(dmat, &seg, rseg, LE_ISA_MEMSIZE, 357 (caddr_t *)&sc->sc_mem, 358 BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 359 printf("%s: couldn't map memory for card\n", 360 sc->sc_dev.dv_xname); 361 return; 362 } 363 364 /* 365 * Create and load the DMA map for the DMA area. 366 */ 367 if (bus_dmamap_create(dmat, LE_ISA_MEMSIZE, 1, 368 LE_ISA_MEMSIZE, 0, BUS_DMA_NOWAIT, &lesc->sc_dmam)) { 369 printf("%s: couldn't create DMA map\n", 370 sc->sc_dev.dv_xname); 371 bus_dmamem_free(dmat, &seg, rseg); 372 return; 373 } 374 if (bus_dmamap_load(dmat, lesc->sc_dmam, 375 sc->sc_mem, LE_ISA_MEMSIZE, NULL, BUS_DMA_NOWAIT)) { 376 printf("%s: coundn't load DMA map\n", 377 sc->sc_dev.dv_xname); 378 bus_dmamem_free(dmat, &seg, rseg); 379 return; 380 } 381 382 sc->sc_conf3 = 0; 383 sc->sc_addr = lesc->sc_dmam->dm_segs[0].ds_addr; 384 sc->sc_memsize = LE_ISA_MEMSIZE; 385 386 sc->sc_copytodesc = lance_copytobuf_contig; 387 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 388 sc->sc_copytobuf = lance_copytobuf_contig; 389 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 390 sc->sc_zerobuf = lance_zerobuf_contig; 391 392 sc->sc_rdcsr = le_isa_rdcsr; 393 sc->sc_wrcsr = le_isa_wrcsr; 394 sc->sc_hwinit = NULL; 395 396 if (ia->ia_ndrq > 0) { 397 if ((error = isa_dmacascade(ia->ia_ic, 398 ia->ia_drq[0].ir_drq)) != 0) { 399 printf("%s: unable to cascade DRQ, error = %d\n", 400 sc->sc_dev.dv_xname, error); 401 return; 402 } 403 } 404 405 lesc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 406 IST_EDGE, IPL_NET, le_isa_intredge, sc); 407 408 printf("%s", sc->sc_dev.dv_xname); 409 am7990_config(&lesc->sc_am7990); 410 } 411 412 /* 413 * Controller interrupt. 414 */ 415 int 416 le_isa_intredge(arg) 417 void *arg; 418 { 419 420 if (am7990_intr(arg) == 0) 421 return (0); 422 for (;;) 423 if (am7990_intr(arg) == 0) 424 return (1); 425 } 426
Indexes created Tue Sep 30 20:09:53 GMT 2025