1 /* $NetBSD: if_le_isa.c,v 1.41 2005/12/24 20:27:41 perry Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-2-Clause-NetBSD AND BSD-3-Clause 5 * 6 * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc. 7 * All rights reserved. 8 * 9 * This code is derived from software contributed to The NetBSD Foundation 10 * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace 11 * Simulation Facility, NASA Ames Research Center. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 /*- 36 * Copyright (c) 1992, 1993 37 * The Regents of the University of California. All rights reserved. 38 * 39 * This code is derived from software contributed to Berkeley by 40 * Ralph Campbell and Rick Macklem. 41 * 42 * Redistribution and use in source and binary forms, with or without 43 * modification, are permitted provided that the following conditions 44 * are met: 45 * 1. Redistributions of source code must retain the above copyright 46 * notice, this list of conditions and the following disclaimer. 47 * 2. Redistributions in binary form must reproduce the above copyright 48 * notice, this list of conditions and the following disclaimer in the 49 * documentation and/or other materials provided with the distribution. 50 * 3. Neither the name of the University nor the names of its contributors 51 * may be used to endorse or promote products derived from this software 52 * without specific prior written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 64 * SUCH DAMAGE. 65 * 66 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 67 */ 68 69 #include <sys/cdefs.h> 70 __FBSDID("$FreeBSD$"); 71 72 #include <sys/param.h> 73 #include <sys/systm.h> 74 #include <sys/bus.h> 75 #include <sys/endian.h> 76 #include <sys/kernel.h> 77 #include <sys/lock.h> 78 #include <sys/module.h> 79 #include <sys/mutex.h> 80 #include <sys/resource.h> 81 #include <sys/rman.h> 82 #include <sys/socket.h> 83 84 #include <net/ethernet.h> 85 #include <net/if.h> 86 #include <net/if_media.h> 87 88 #include <machine/bus.h> 89 #include <machine/resource.h> 90 91 #include <isa/isavar.h> 92 93 #include <dev/le/lancereg.h> 94 #include <dev/le/lancevar.h> 95 #include <dev/le/am7990var.h> 96 97 #define LE_ISA_MEMSIZE (16*1024) 98 #define PCNET_RDP 0x10 99 #define PCNET_RAP 0x12 100 101 struct le_isa_softc { 102 struct am7990_softc sc_am7990; /* glue to MI code */ 103 104 bus_size_t sc_rap; /* offsets to LANCE... */ 105 bus_size_t sc_rdp; /* ...registers */ 106 107 struct resource *sc_rres; 108 109 struct resource *sc_dres; 110 111 struct resource *sc_ires; 112 void *sc_ih; 113 114 bus_dma_tag_t sc_pdmat; 115 bus_dma_tag_t sc_dmat; 116 bus_dmamap_t sc_dmam; 117 }; 118 119 static device_probe_t le_isa_probe; 120 static device_attach_t le_isa_attach; 121 static device_detach_t le_isa_detach; 122 static device_resume_t le_isa_resume; 123 static device_suspend_t le_isa_suspend; 124 125 static device_method_t le_isa_methods[] = { 126 /* Device interface */ 127 DEVMETHOD(device_probe, le_isa_probe), 128 DEVMETHOD(device_attach, le_isa_attach), 129 DEVMETHOD(device_detach, le_isa_detach), 130 /* We can just use the suspend method here. */ 131 DEVMETHOD(device_shutdown, le_isa_suspend), 132 DEVMETHOD(device_suspend, le_isa_suspend), 133 DEVMETHOD(device_resume, le_isa_resume), 134 135 { 0, 0 } 136 }; 137 138 DEFINE_CLASS_0(le, le_isa_driver, le_isa_methods, sizeof(struct le_isa_softc)); 139 DRIVER_MODULE(le, isa, le_isa_driver, le_devclass, 0, 0); 140 MODULE_DEPEND(le, ether, 1, 1, 1); 141 142 struct le_isa_param { 143 const char *name; 144 u_long iosize; 145 bus_size_t rap; 146 bus_size_t rdp; 147 bus_size_t macstart; 148 int macstride; 149 } static const le_isa_params[] = { 150 { "BICC Isolan", 24, 0xe, 0xc, 0, 2 }, 151 { "Novell NE2100", 16, 0x12, 0x10, 0, 1 } 152 }; 153 154 static struct isa_pnp_id le_isa_ids[] = { 155 { 0x0322690e, "Cabletron E2200 Single Chip" }, /* CSI2203 */ 156 { 0x0110490a, "Boca LANCard Combo" }, /* BRI1001 */ 157 { 0x0100a60a, "Melco Inc. LGY-IV" }, /* BUF0001 */ 158 { 0xd880d041, "Novell NE2100" }, /* PNP80D8 */ 159 { 0x0082d041, "Cabletron E2100 Series DNI" }, /* PNP8200 */ 160 { 0x3182d041, "AMD AM1500T/AM2100" }, /* PNP8231 */ 161 { 0x8c82d041, "AMD PCnet-ISA" }, /* PNP828C */ 162 { 0x8d82d041, "AMD PCnet-32" }, /* PNP828D */ 163 { 0xcefaedfe, "Racal InterLan EtherBlaster" }, /* _WMFACE */ 164 { 0, NULL } 165 }; 166 167 static void le_isa_wrcsr(struct lance_softc *, uint16_t, uint16_t); 168 static uint16_t le_isa_rdcsr(struct lance_softc *, uint16_t); 169 static bus_dmamap_callback_t le_isa_dma_callback; 170 static int le_isa_probe_legacy(device_t, const struct le_isa_param *); 171 172 static void 173 le_isa_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val) 174 { 175 struct le_isa_softc *lesc = (struct le_isa_softc *)sc; 176 177 bus_write_2(lesc->sc_rres, lesc->sc_rap, port); 178 bus_barrier(lesc->sc_rres, lesc->sc_rap, 2, BUS_SPACE_BARRIER_WRITE); 179 bus_write_2(lesc->sc_rres, lesc->sc_rdp, val); 180 } 181 182 static uint16_t 183 le_isa_rdcsr(struct lance_softc *sc, uint16_t port) 184 { 185 struct le_isa_softc *lesc = (struct le_isa_softc *)sc; 186 187 bus_write_2(lesc->sc_rres, lesc->sc_rap, port); 188 bus_barrier(lesc->sc_rres, lesc->sc_rap, 2, BUS_SPACE_BARRIER_WRITE); 189 return (bus_read_2(lesc->sc_rres, lesc->sc_rdp)); 190 } 191 192 static void 193 le_isa_dma_callback(void *xsc, bus_dma_segment_t *segs, int nsegs, int error) 194 { 195 struct lance_softc *sc = (struct lance_softc *)xsc; 196 197 if (error != 0) 198 return; 199 KASSERT(nsegs == 1, ("%s: bad DMA segment count", __func__)); 200 sc->sc_addr = segs[0].ds_addr; 201 } 202 203 static int 204 le_isa_probe_legacy(device_t dev, const struct le_isa_param *leip) 205 { 206 struct le_isa_softc *lesc; 207 struct lance_softc *sc; 208 int error, i; 209 210 lesc = device_get_softc(dev); 211 sc = &lesc->sc_am7990.lsc; 212 213 i = 0; 214 lesc->sc_rres = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT, &i, 215 leip->iosize, RF_ACTIVE); 216 if (lesc->sc_rres == NULL) 217 return (ENXIO); 218 lesc->sc_rap = leip->rap; 219 lesc->sc_rdp = leip->rdp; 220 221 /* Stop the chip and put it in a known state. */ 222 le_isa_wrcsr(sc, LE_CSR0, LE_C0_STOP); 223 DELAY(100); 224 if (le_isa_rdcsr(sc, LE_CSR0) != LE_C0_STOP) { 225 error = ENXIO; 226 goto fail; 227 } 228 le_isa_wrcsr(sc, LE_CSR3, 0); 229 error = 0; 230 231 fail: 232 bus_release_resource(dev, SYS_RES_IOPORT, 233 rman_get_rid(lesc->sc_rres), lesc->sc_rres); 234 return (error); 235 } 236 237 static int 238 le_isa_probe(device_t dev) 239 { 240 int i; 241 242 switch (ISA_PNP_PROBE(device_get_parent(dev), dev, le_isa_ids)) { 243 case 0: 244 return (BUS_PROBE_DEFAULT); 245 case ENOENT: 246 for (i = 0; i < nitems(le_isa_params); i++) { 247 if (le_isa_probe_legacy(dev, &le_isa_params[i]) == 0) { 248 device_set_desc(dev, le_isa_params[i].name); 249 return (BUS_PROBE_DEFAULT); 250 } 251 } 252 /* FALLTHROUGH */ 253 case ENXIO: 254 default: 255 return (ENXIO); 256 } 257 } 258 259 static int 260 le_isa_attach(device_t dev) 261 { 262 struct le_isa_softc *lesc; 263 struct lance_softc *sc; 264 bus_size_t macstart, rap, rdp; 265 int error, i, j, macstride; 266 267 lesc = device_get_softc(dev); 268 sc = &lesc->sc_am7990.lsc; 269 270 LE_LOCK_INIT(sc, device_get_nameunit(dev)); 271 272 j = 0; 273 switch (ISA_PNP_PROBE(device_get_parent(dev), dev, le_isa_ids)) { 274 case 0: 275 lesc->sc_rres = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 276 &j, RF_ACTIVE); 277 rap = PCNET_RAP; 278 rdp = PCNET_RDP; 279 macstart = 0; 280 macstride = 1; 281 break; 282 case ENOENT: 283 for (i = 0; i < nitems(le_isa_params); i++) { 284 if (le_isa_probe_legacy(dev, &le_isa_params[i]) == 0) { 285 lesc->sc_rres = bus_alloc_resource_anywhere(dev, 286 SYS_RES_IOPORT, &j, 287 le_isa_params[i].iosize, RF_ACTIVE); 288 rap = le_isa_params[i].rap; 289 rdp = le_isa_params[i].rdp; 290 macstart = le_isa_params[i].macstart; 291 macstride = le_isa_params[i].macstride; 292 goto found; 293 } 294 } 295 /* FALLTHROUGH */ 296 case ENXIO: 297 default: 298 device_printf(dev, "cannot determine chip\n"); 299 error = ENXIO; 300 goto fail_mtx; 301 } 302 303 found: 304 if (lesc->sc_rres == NULL) { 305 device_printf(dev, "cannot allocate registers\n"); 306 error = ENXIO; 307 goto fail_mtx; 308 } 309 lesc->sc_rap = rap; 310 lesc->sc_rdp = rdp; 311 312 i = 0; 313 if ((lesc->sc_dres = bus_alloc_resource_any(dev, SYS_RES_DRQ, 314 &i, RF_ACTIVE)) == NULL) { 315 device_printf(dev, "cannot allocate DMA channel\n"); 316 error = ENXIO; 317 goto fail_rres; 318 } 319 320 i = 0; 321 if ((lesc->sc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, 322 &i, RF_SHAREABLE | RF_ACTIVE)) == NULL) { 323 device_printf(dev, "cannot allocate interrupt\n"); 324 error = ENXIO; 325 goto fail_dres; 326 } 327 328 error = bus_dma_tag_create( 329 bus_get_dma_tag(dev), /* parent */ 330 1, 0, /* alignment, boundary */ 331 BUS_SPACE_MAXADDR_24BIT, /* lowaddr */ 332 BUS_SPACE_MAXADDR, /* highaddr */ 333 NULL, NULL, /* filter, filterarg */ 334 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 335 0, /* nsegments */ 336 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 337 0, /* flags */ 338 NULL, NULL, /* lockfunc, lockarg */ 339 &lesc->sc_pdmat); 340 if (error != 0) { 341 device_printf(dev, "cannot allocate parent DMA tag\n"); 342 goto fail_ires; 343 } 344 345 sc->sc_memsize = LE_ISA_MEMSIZE; 346 /* 347 * For Am79C90, Am79C961 and Am79C961A the init block must be 2-byte 348 * aligned and the ring descriptors must be 8-byte aligned. 349 */ 350 error = bus_dma_tag_create( 351 lesc->sc_pdmat, /* parent */ 352 8, 0, /* alignment, boundary */ 353 BUS_SPACE_MAXADDR_24BIT, /* lowaddr */ 354 BUS_SPACE_MAXADDR, /* highaddr */ 355 NULL, NULL, /* filter, filterarg */ 356 sc->sc_memsize, /* maxsize */ 357 1, /* nsegments */ 358 sc->sc_memsize, /* maxsegsize */ 359 0, /* flags */ 360 NULL, NULL, /* lockfunc, lockarg */ 361 &lesc->sc_dmat); 362 if (error != 0) { 363 device_printf(dev, "cannot allocate buffer DMA tag\n"); 364 goto fail_pdtag; 365 } 366 367 error = bus_dmamem_alloc(lesc->sc_dmat, (void **)&sc->sc_mem, 368 BUS_DMA_WAITOK | BUS_DMA_COHERENT, &lesc->sc_dmam); 369 if (error != 0) { 370 device_printf(dev, "cannot allocate DMA buffer memory\n"); 371 goto fail_dtag; 372 } 373 374 sc->sc_addr = 0; 375 error = bus_dmamap_load(lesc->sc_dmat, lesc->sc_dmam, sc->sc_mem, 376 sc->sc_memsize, le_isa_dma_callback, sc, 0); 377 if (error != 0 || sc->sc_addr == 0) { 378 device_printf(dev, "cannot load DMA buffer map\n"); 379 goto fail_dmem; 380 } 381 382 isa_dmacascade(rman_get_start(lesc->sc_dres)); 383 384 sc->sc_flags = 0; 385 sc->sc_conf3 = 0; 386 387 /* 388 * Extract the physical MAC address from the ROM. 389 */ 390 for (i = 0; i < sizeof(sc->sc_enaddr); i++) 391 sc->sc_enaddr[i] = bus_read_1(lesc->sc_rres, 392 macstart + i * macstride); 393 394 sc->sc_copytodesc = lance_copytobuf_contig; 395 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 396 sc->sc_copytobuf = lance_copytobuf_contig; 397 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 398 sc->sc_zerobuf = lance_zerobuf_contig; 399 400 sc->sc_rdcsr = le_isa_rdcsr; 401 sc->sc_wrcsr = le_isa_wrcsr; 402 sc->sc_hwreset = NULL; 403 sc->sc_hwinit = NULL; 404 sc->sc_hwintr = NULL; 405 sc->sc_nocarrier = NULL; 406 sc->sc_mediachange = NULL; 407 sc->sc_mediastatus = NULL; 408 sc->sc_supmedia = NULL; 409 410 error = am7990_config(&lesc->sc_am7990, device_get_name(dev), 411 device_get_unit(dev)); 412 if (error != 0) { 413 device_printf(dev, "cannot attach Am7990\n"); 414 goto fail_dmap; 415 } 416 417 error = bus_setup_intr(dev, lesc->sc_ires, INTR_TYPE_NET | INTR_MPSAFE, 418 NULL, am7990_intr, sc, &lesc->sc_ih); 419 if (error != 0) { 420 device_printf(dev, "cannot set up interrupt\n"); 421 goto fail_am7990; 422 } 423 424 return (0); 425 426 fail_am7990: 427 am7990_detach(&lesc->sc_am7990); 428 fail_dmap: 429 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam); 430 fail_dmem: 431 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam); 432 fail_dtag: 433 bus_dma_tag_destroy(lesc->sc_dmat); 434 fail_pdtag: 435 bus_dma_tag_destroy(lesc->sc_pdmat); 436 fail_ires: 437 bus_release_resource(dev, SYS_RES_IRQ, 438 rman_get_rid(lesc->sc_ires), lesc->sc_ires); 439 fail_dres: 440 bus_release_resource(dev, SYS_RES_DRQ, 441 rman_get_rid(lesc->sc_dres), lesc->sc_dres); 442 fail_rres: 443 bus_release_resource(dev, SYS_RES_IOPORT, 444 rman_get_rid(lesc->sc_rres), lesc->sc_rres); 445 fail_mtx: 446 LE_LOCK_DESTROY(sc); 447 return (error); 448 } 449 450 static int 451 le_isa_detach(device_t dev) 452 { 453 struct le_isa_softc *lesc; 454 struct lance_softc *sc; 455 456 lesc = device_get_softc(dev); 457 sc = &lesc->sc_am7990.lsc; 458 459 bus_teardown_intr(dev, lesc->sc_ires, lesc->sc_ih); 460 am7990_detach(&lesc->sc_am7990); 461 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam); 462 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam); 463 bus_dma_tag_destroy(lesc->sc_dmat); 464 bus_dma_tag_destroy(lesc->sc_pdmat); 465 bus_release_resource(dev, SYS_RES_IRQ, 466 rman_get_rid(lesc->sc_ires), lesc->sc_ires); 467 bus_release_resource(dev, SYS_RES_DRQ, 468 rman_get_rid(lesc->sc_dres), lesc->sc_dres); 469 bus_release_resource(dev, SYS_RES_IOPORT, 470 rman_get_rid(lesc->sc_rres), lesc->sc_rres); 471 LE_LOCK_DESTROY(sc); 472 473 return (0); 474 } 475 476 static int 477 le_isa_suspend(device_t dev) 478 { 479 struct le_isa_softc *lesc; 480 481 lesc = device_get_softc(dev); 482 483 lance_suspend(&lesc->sc_am7990.lsc); 484 485 return (0); 486 } 487 488 static int 489 le_isa_resume(device_t dev) 490 { 491 struct le_isa_softc *lesc; 492 493 lesc = device_get_softc(dev); 494 495 lance_resume(&lesc->sc_am7990.lsc); 496 497 return (0); 498 } 499