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 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 67 #include <sys/cdefs.h> 68 #include <sys/param.h> 69 #include <sys/systm.h> 70 #include <sys/bus.h> 71 #include <sys/endian.h> 72 #include <sys/kernel.h> 73 #include <sys/lock.h> 74 #include <sys/module.h> 75 #include <sys/mutex.h> 76 #include <sys/resource.h> 77 #include <sys/rman.h> 78 #include <sys/socket.h> 79 80 #include <net/ethernet.h> 81 #include <net/if.h> 82 #include <net/if_media.h> 83 84 #include <machine/bus.h> 85 #include <machine/resource.h> 86 87 #include <isa/isavar.h> 88 89 #include <dev/le/lancereg.h> 90 #include <dev/le/lancevar.h> 91 #include <dev/le/am7990var.h> 92 93 #define LE_ISA_MEMSIZE (16*1024) 94 #define PCNET_RDP 0x10 95 #define PCNET_RAP 0x12 96 97 struct le_isa_softc { 98 struct am7990_softc sc_am7990; /* glue to MI code */ 99 100 bus_size_t sc_rap; /* offsets to LANCE... */ 101 bus_size_t sc_rdp; /* ...registers */ 102 103 struct resource *sc_rres; 104 105 struct resource *sc_dres; 106 107 struct resource *sc_ires; 108 void *sc_ih; 109 110 bus_dma_tag_t sc_pdmat; 111 bus_dma_tag_t sc_dmat; 112 bus_dmamap_t sc_dmam; 113 }; 114 115 static device_probe_t le_isa_probe; 116 static device_attach_t le_isa_attach; 117 static device_detach_t le_isa_detach; 118 static device_resume_t le_isa_resume; 119 static device_suspend_t le_isa_suspend; 120 121 static device_method_t le_isa_methods[] = { 122 /* Device interface */ 123 DEVMETHOD(device_probe, le_isa_probe), 124 DEVMETHOD(device_attach, le_isa_attach), 125 DEVMETHOD(device_detach, le_isa_detach), 126 /* We can just use the suspend method here. */ 127 DEVMETHOD(device_shutdown, le_isa_suspend), 128 DEVMETHOD(device_suspend, le_isa_suspend), 129 DEVMETHOD(device_resume, le_isa_resume), 130 131 { 0, 0 } 132 }; 133 134 struct le_isa_param { 135 const char *name; 136 u_long iosize; 137 bus_size_t rap; 138 bus_size_t rdp; 139 bus_size_t macstart; 140 int macstride; 141 } static const le_isa_params[] = { 142 { "BICC Isolan", 24, 0xe, 0xc, 0, 2 }, 143 { "Novell NE2100", 16, 0x12, 0x10, 0, 1 } 144 }; 145 146 static struct isa_pnp_id le_isa_ids[] = { 147 { 0x0322690e, "Cabletron E2200 Single Chip" }, /* CSI2203 */ 148 { 0x0110490a, "Boca LANCard Combo" }, /* BRI1001 */ 149 { 0x0100a60a, "Melco Inc. LGY-IV" }, /* BUF0001 */ 150 { 0xd880d041, "Novell NE2100" }, /* PNP80D8 */ 151 { 0x0082d041, "Cabletron E2100 Series DNI" }, /* PNP8200 */ 152 { 0x3182d041, "AMD AM1500T/AM2100" }, /* PNP8231 */ 153 { 0x8c82d041, "AMD PCnet-ISA" }, /* PNP828C */ 154 { 0x8d82d041, "AMD PCnet-32" }, /* PNP828D */ 155 { 0xcefaedfe, "Racal InterLan EtherBlaster" }, /* _WMFACE */ 156 { 0, NULL } 157 }; 158 159 static void le_isa_wrcsr(struct lance_softc *, uint16_t, uint16_t); 160 static uint16_t le_isa_rdcsr(struct lance_softc *, uint16_t); 161 static bus_dmamap_callback_t le_isa_dma_callback; 162 static int le_isa_probe_legacy(device_t, const struct le_isa_param *); 163 164 static void 165 le_isa_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val) 166 { 167 struct le_isa_softc *lesc = (struct le_isa_softc *)sc; 168 169 bus_write_2(lesc->sc_rres, lesc->sc_rap, port); 170 bus_barrier(lesc->sc_rres, lesc->sc_rap, 2, BUS_SPACE_BARRIER_WRITE); 171 bus_write_2(lesc->sc_rres, lesc->sc_rdp, val); 172 } 173 174 static uint16_t 175 le_isa_rdcsr(struct lance_softc *sc, uint16_t port) 176 { 177 struct le_isa_softc *lesc = (struct le_isa_softc *)sc; 178 179 bus_write_2(lesc->sc_rres, lesc->sc_rap, port); 180 bus_barrier(lesc->sc_rres, lesc->sc_rap, 2, BUS_SPACE_BARRIER_WRITE); 181 return (bus_read_2(lesc->sc_rres, lesc->sc_rdp)); 182 } 183 184 static void 185 le_isa_dma_callback(void *xsc, bus_dma_segment_t *segs, int nsegs, int error) 186 { 187 struct lance_softc *sc = (struct lance_softc *)xsc; 188 189 if (error != 0) 190 return; 191 KASSERT(nsegs == 1, ("%s: bad DMA segment count", __func__)); 192 sc->sc_addr = segs[0].ds_addr; 193 } 194 195 static int 196 le_isa_probe_legacy(device_t dev, const struct le_isa_param *leip) 197 { 198 struct le_isa_softc *lesc; 199 struct lance_softc *sc; 200 int error, i; 201 202 lesc = device_get_softc(dev); 203 sc = &lesc->sc_am7990.lsc; 204 205 i = 0; 206 lesc->sc_rres = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT, &i, 207 leip->iosize, RF_ACTIVE); 208 if (lesc->sc_rres == NULL) 209 return (ENXIO); 210 lesc->sc_rap = leip->rap; 211 lesc->sc_rdp = leip->rdp; 212 213 /* Stop the chip and put it in a known state. */ 214 le_isa_wrcsr(sc, LE_CSR0, LE_C0_STOP); 215 DELAY(100); 216 if (le_isa_rdcsr(sc, LE_CSR0) != LE_C0_STOP) { 217 error = ENXIO; 218 goto fail; 219 } 220 le_isa_wrcsr(sc, LE_CSR3, 0); 221 error = 0; 222 223 fail: 224 bus_release_resource(dev, SYS_RES_IOPORT, 225 rman_get_rid(lesc->sc_rres), lesc->sc_rres); 226 return (error); 227 } 228 229 static int 230 le_isa_probe(device_t dev) 231 { 232 int i; 233 234 switch (ISA_PNP_PROBE(device_get_parent(dev), dev, le_isa_ids)) { 235 case 0: 236 return (BUS_PROBE_DEFAULT); 237 case ENOENT: 238 for (i = 0; i < nitems(le_isa_params); i++) { 239 if (le_isa_probe_legacy(dev, &le_isa_params[i]) == 0) { 240 device_set_desc(dev, le_isa_params[i].name); 241 return (BUS_PROBE_DEFAULT); 242 } 243 } 244 /* FALLTHROUGH */ 245 case ENXIO: 246 default: 247 return (ENXIO); 248 } 249 } 250 251 static int 252 le_isa_attach(device_t dev) 253 { 254 struct le_isa_softc *lesc; 255 struct lance_softc *sc; 256 bus_size_t macstart, rap, rdp; 257 int error, i, j, macstride; 258 259 lesc = device_get_softc(dev); 260 sc = &lesc->sc_am7990.lsc; 261 262 LE_LOCK_INIT(sc, device_get_nameunit(dev)); 263 264 j = 0; 265 switch (ISA_PNP_PROBE(device_get_parent(dev), dev, le_isa_ids)) { 266 case 0: 267 lesc->sc_rres = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 268 &j, RF_ACTIVE); 269 rap = PCNET_RAP; 270 rdp = PCNET_RDP; 271 macstart = 0; 272 macstride = 1; 273 break; 274 case ENOENT: 275 for (i = 0; i < nitems(le_isa_params); i++) { 276 if (le_isa_probe_legacy(dev, &le_isa_params[i]) == 0) { 277 lesc->sc_rres = bus_alloc_resource_anywhere(dev, 278 SYS_RES_IOPORT, &j, 279 le_isa_params[i].iosize, RF_ACTIVE); 280 rap = le_isa_params[i].rap; 281 rdp = le_isa_params[i].rdp; 282 macstart = le_isa_params[i].macstart; 283 macstride = le_isa_params[i].macstride; 284 goto found; 285 } 286 } 287 /* FALLTHROUGH */ 288 case ENXIO: 289 default: 290 device_printf(dev, "cannot determine chip\n"); 291 error = ENXIO; 292 goto fail_mtx; 293 } 294 295 found: 296 if (lesc->sc_rres == NULL) { 297 device_printf(dev, "cannot allocate registers\n"); 298 error = ENXIO; 299 goto fail_mtx; 300 } 301 lesc->sc_rap = rap; 302 lesc->sc_rdp = rdp; 303 304 i = 0; 305 if ((lesc->sc_dres = bus_alloc_resource_any(dev, SYS_RES_DRQ, 306 &i, RF_ACTIVE)) == NULL) { 307 device_printf(dev, "cannot allocate DMA channel\n"); 308 error = ENXIO; 309 goto fail_rres; 310 } 311 312 i = 0; 313 if ((lesc->sc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, 314 &i, RF_SHAREABLE | RF_ACTIVE)) == NULL) { 315 device_printf(dev, "cannot allocate interrupt\n"); 316 error = ENXIO; 317 goto fail_dres; 318 } 319 320 error = bus_dma_tag_create( 321 bus_get_dma_tag(dev), /* parent */ 322 1, 0, /* alignment, boundary */ 323 BUS_SPACE_MAXADDR_24BIT, /* lowaddr */ 324 BUS_SPACE_MAXADDR, /* highaddr */ 325 NULL, NULL, /* filter, filterarg */ 326 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 327 0, /* nsegments */ 328 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 329 0, /* flags */ 330 NULL, NULL, /* lockfunc, lockarg */ 331 &lesc->sc_pdmat); 332 if (error != 0) { 333 device_printf(dev, "cannot allocate parent DMA tag\n"); 334 goto fail_ires; 335 } 336 337 sc->sc_memsize = LE_ISA_MEMSIZE; 338 /* 339 * For Am79C90, Am79C961 and Am79C961A the init block must be 2-byte 340 * aligned and the ring descriptors must be 8-byte aligned. 341 */ 342 error = bus_dma_tag_create( 343 lesc->sc_pdmat, /* parent */ 344 8, 0, /* alignment, boundary */ 345 BUS_SPACE_MAXADDR_24BIT, /* lowaddr */ 346 BUS_SPACE_MAXADDR, /* highaddr */ 347 NULL, NULL, /* filter, filterarg */ 348 sc->sc_memsize, /* maxsize */ 349 1, /* nsegments */ 350 sc->sc_memsize, /* maxsegsize */ 351 0, /* flags */ 352 NULL, NULL, /* lockfunc, lockarg */ 353 &lesc->sc_dmat); 354 if (error != 0) { 355 device_printf(dev, "cannot allocate buffer DMA tag\n"); 356 goto fail_pdtag; 357 } 358 359 error = bus_dmamem_alloc(lesc->sc_dmat, (void **)&sc->sc_mem, 360 BUS_DMA_WAITOK | BUS_DMA_COHERENT, &lesc->sc_dmam); 361 if (error != 0) { 362 device_printf(dev, "cannot allocate DMA buffer memory\n"); 363 goto fail_dtag; 364 } 365 366 sc->sc_addr = 0; 367 error = bus_dmamap_load(lesc->sc_dmat, lesc->sc_dmam, sc->sc_mem, 368 sc->sc_memsize, le_isa_dma_callback, sc, 0); 369 if (error != 0 || sc->sc_addr == 0) { 370 device_printf(dev, "cannot load DMA buffer map\n"); 371 goto fail_dmem; 372 } 373 374 isa_dmacascade(rman_get_start(lesc->sc_dres)); 375 376 sc->sc_flags = 0; 377 sc->sc_conf3 = 0; 378 379 /* 380 * Extract the physical MAC address from the ROM. 381 */ 382 for (i = 0; i < sizeof(sc->sc_enaddr); i++) 383 sc->sc_enaddr[i] = bus_read_1(lesc->sc_rres, 384 macstart + i * macstride); 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_hwreset = NULL; 395 sc->sc_hwinit = NULL; 396 sc->sc_hwintr = NULL; 397 sc->sc_nocarrier = NULL; 398 sc->sc_mediachange = NULL; 399 sc->sc_mediastatus = NULL; 400 sc->sc_supmedia = NULL; 401 402 error = am7990_config(&lesc->sc_am7990, device_get_name(dev), 403 device_get_unit(dev)); 404 if (error != 0) { 405 device_printf(dev, "cannot attach Am7990\n"); 406 goto fail_dmap; 407 } 408 409 error = bus_setup_intr(dev, lesc->sc_ires, INTR_TYPE_NET | INTR_MPSAFE, 410 NULL, am7990_intr, sc, &lesc->sc_ih); 411 if (error != 0) { 412 device_printf(dev, "cannot set up interrupt\n"); 413 goto fail_am7990; 414 } 415 416 return (0); 417 418 fail_am7990: 419 am7990_detach(&lesc->sc_am7990); 420 fail_dmap: 421 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam); 422 fail_dmem: 423 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam); 424 fail_dtag: 425 bus_dma_tag_destroy(lesc->sc_dmat); 426 fail_pdtag: 427 bus_dma_tag_destroy(lesc->sc_pdmat); 428 fail_ires: 429 bus_release_resource(dev, SYS_RES_IRQ, 430 rman_get_rid(lesc->sc_ires), lesc->sc_ires); 431 fail_dres: 432 bus_release_resource(dev, SYS_RES_DRQ, 433 rman_get_rid(lesc->sc_dres), lesc->sc_dres); 434 fail_rres: 435 bus_release_resource(dev, SYS_RES_IOPORT, 436 rman_get_rid(lesc->sc_rres), lesc->sc_rres); 437 fail_mtx: 438 LE_LOCK_DESTROY(sc); 439 return (error); 440 } 441 442 static int 443 le_isa_detach(device_t dev) 444 { 445 struct le_isa_softc *lesc; 446 struct lance_softc *sc; 447 448 lesc = device_get_softc(dev); 449 sc = &lesc->sc_am7990.lsc; 450 451 bus_teardown_intr(dev, lesc->sc_ires, lesc->sc_ih); 452 am7990_detach(&lesc->sc_am7990); 453 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam); 454 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam); 455 bus_dma_tag_destroy(lesc->sc_dmat); 456 bus_dma_tag_destroy(lesc->sc_pdmat); 457 bus_release_resource(dev, SYS_RES_IRQ, 458 rman_get_rid(lesc->sc_ires), lesc->sc_ires); 459 bus_release_resource(dev, SYS_RES_DRQ, 460 rman_get_rid(lesc->sc_dres), lesc->sc_dres); 461 bus_release_resource(dev, SYS_RES_IOPORT, 462 rman_get_rid(lesc->sc_rres), lesc->sc_rres); 463 LE_LOCK_DESTROY(sc); 464 465 return (0); 466 } 467 468 static int 469 le_isa_suspend(device_t dev) 470 { 471 struct le_isa_softc *lesc; 472 473 lesc = device_get_softc(dev); 474 475 lance_suspend(&lesc->sc_am7990.lsc); 476 477 return (0); 478 } 479 480 static int 481 le_isa_resume(device_t dev) 482 { 483 struct le_isa_softc *lesc; 484 485 lesc = device_get_softc(dev); 486 487 lance_resume(&lesc->sc_am7990.lsc); 488 489 return (0); 490 } 491 492 DEFINE_CLASS_0(le, le_isa_driver, le_isa_methods, sizeof(struct le_isa_softc)); 493 DRIVER_MODULE(le, isa, le_isa_driver, 0, 0); 494 MODULE_DEPEND(le, ether, 1, 1, 1); 495 ISA_PNP_INFO(le_isa_ids); 496