if_le_isa.c revision 1.29
1 /* $NetBSD: if_le_isa.c,v 1.29 2002/01/07 21:47:08 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 1.29 2002/01/07 21:47:08 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 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 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 (ia->ia_drq[0].ir_drq == ISACF_DRQ_DEFAULT) 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 ia->ia_ndrq = 1; 264 265 ia->ia_niomem = 0; 266 267 rv = 1; 268 269 bad: 270 bus_space_unmap(iot, ioh, p->iosize); 271 return (rv); 272 } 273 274 void 275 le_dummyattach(parent, self, aux) 276 struct device *parent, *self; 277 void *aux; 278 { 279 printf("\n"); 280 281 config_found(self, aux, 0); 282 } 283 284 int 285 le_dummyprobe(parent, match, aux) 286 struct device *parent; 287 struct cfdata *match; 288 void *aux; 289 { 290 return (1); 291 } 292 293 void 294 le_ne2100_attach(parent, self, aux) 295 struct device *parent, *self; 296 void *aux; 297 { 298 le_isa_attach(parent, (void *)self, aux, &ne2100_params); 299 } 300 301 void 302 le_bicc_attach(parent, self, aux) 303 struct device *parent, *self; 304 void *aux; 305 { 306 le_isa_attach(parent, (void *)self, aux, &bicc_params); 307 } 308 309 void 310 le_isa_attach(parent, lesc, ia, p) 311 struct device *parent; 312 struct le_softc *lesc; 313 struct isa_attach_args *ia; 314 struct le_isa_params *p; 315 { 316 struct lance_softc *sc = &lesc->sc_am7990.lsc; 317 bus_space_tag_t iot = ia->ia_iot; 318 bus_space_handle_t ioh; 319 bus_dma_tag_t dmat = ia->ia_dmat; 320 bus_dma_segment_t seg; 321 int i, rseg, error; 322 323 printf(": %s Ethernet\n", p->name); 324 325 if (bus_space_map(iot, ia->ia_io[0].ir_size, p->iosize, 0, &ioh)) 326 panic("%s: can't map io", sc->sc_dev.dv_xname); 327 328 /* 329 * Extract the physical MAC address from the ROM. 330 */ 331 for (i = 0; i < sizeof(sc->sc_enaddr); i++) 332 sc->sc_enaddr[i] = 333 bus_space_read_1(iot, ioh, p->macstart + i * p->macstride); 334 335 lesc->sc_iot = iot; 336 lesc->sc_ioh = ioh; 337 lesc->sc_dmat = dmat; 338 lesc->sc_rap = p->rap; 339 lesc->sc_rdp = p->rdp; 340 341 /* 342 * Allocate a DMA area for the card. 343 */ 344 if (bus_dmamem_alloc(dmat, LE_ISA_MEMSIZE, PAGE_SIZE, 0, &seg, 1, 345 &rseg, BUS_DMA_NOWAIT)) { 346 printf("%s: couldn't allocate memory for card\n", 347 sc->sc_dev.dv_xname); 348 return; 349 } 350 if (bus_dmamem_map(dmat, &seg, rseg, LE_ISA_MEMSIZE, 351 (caddr_t *)&sc->sc_mem, 352 BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 353 printf("%s: couldn't map memory for card\n", 354 sc->sc_dev.dv_xname); 355 return; 356 } 357 358 /* 359 * Create and load the DMA map for the DMA area. 360 */ 361 if (bus_dmamap_create(dmat, LE_ISA_MEMSIZE, 1, 362 LE_ISA_MEMSIZE, 0, BUS_DMA_NOWAIT, &lesc->sc_dmam)) { 363 printf("%s: couldn't create DMA map\n", 364 sc->sc_dev.dv_xname); 365 bus_dmamem_free(dmat, &seg, rseg); 366 return; 367 } 368 if (bus_dmamap_load(dmat, lesc->sc_dmam, 369 sc->sc_mem, LE_ISA_MEMSIZE, NULL, BUS_DMA_NOWAIT)) { 370 printf("%s: coundn't load DMA map\n", 371 sc->sc_dev.dv_xname); 372 bus_dmamem_free(dmat, &seg, rseg); 373 return; 374 } 375 376 sc->sc_conf3 = 0; 377 sc->sc_addr = lesc->sc_dmam->dm_segs[0].ds_addr; 378 sc->sc_memsize = LE_ISA_MEMSIZE; 379 380 sc->sc_copytodesc = lance_copytobuf_contig; 381 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 382 sc->sc_copytobuf = lance_copytobuf_contig; 383 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 384 sc->sc_zerobuf = lance_zerobuf_contig; 385 386 sc->sc_rdcsr = le_isa_rdcsr; 387 sc->sc_wrcsr = le_isa_wrcsr; 388 sc->sc_hwinit = NULL; 389 390 if ((error = isa_dmacascade(ia->ia_ic, ia->ia_drq[0].ir_drq)) != 0) { 391 printf("%s: unable to cascade DRQ, error = %d\n", 392 sc->sc_dev.dv_xname, error); 393 return; 394 } 395 396 lesc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 397 IST_EDGE, IPL_NET, le_isa_intredge, sc); 398 399 printf("%s", sc->sc_dev.dv_xname); 400 am7990_config(&lesc->sc_am7990); 401 } 402 403 /* 404 * Controller interrupt. 405 */ 406 int 407 le_isa_intredge(arg) 408 void *arg; 409 { 410 411 if (am7990_intr(arg) == 0) 412 return (0); 413 for (;;) 414 if (am7990_intr(arg) == 0) 415 return (1); 416 } 417
Indexes created Wed Oct 01 07:09:59 GMT 2025