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/param.h> 68 #include <sys/systm.h> 69 #include <sys/bus.h> 70 #include <sys/endian.h> 71 #include <sys/kernel.h> 72 #include <sys/lock.h> 73 #include <sys/module.h> 74 #include <sys/mutex.h> 75 #include <sys/resource.h> 76 #include <sys/rman.h> 77 #include <sys/socket.h> 78 79 #include <net/ethernet.h> 80 #include <net/if.h> 81 #include <net/if_media.h> 82 83 #include <machine/bus.h> 84 #include <machine/resource.h> 85 86 #include <isa/isavar.h> 87 88 #include <dev/le/lancereg.h> 89 #include <dev/le/lancevar.h> 90 #include <dev/le/am7990var.h> 91 92 #define LE_ISA_MEMSIZE (16*1024) 93 #define PCNET_RDP 0x10 94 #define PCNET_RAP 0x12 95 96 struct le_isa_softc { 97 struct am7990_softc sc_am7990; /* glue to MI code */ 98 99 bus_size_t sc_rap; /* offsets to LANCE... */ 100 bus_size_t sc_rdp; /* ...registers */ 101 102 struct resource *sc_rres; 103 104 struct resource *sc_dres; 105 106 struct resource *sc_ires; 107 void *sc_ih; 108 109 bus_dma_tag_t sc_pdmat; 110 bus_dma_tag_t sc_dmat; 111 bus_dmamap_t sc_dmam; 112 }; 113 114 static device_probe_t le_isa_probe; 115 static device_attach_t le_isa_attach; 116 static device_detach_t le_isa_detach; 117 static device_resume_t le_isa_resume; 118 static device_suspend_t le_isa_suspend; 119 120 static device_method_t le_isa_methods[] = { 121 /* Device interface */ 122 DEVMETHOD(device_probe, le_isa_probe), 123 DEVMETHOD(device_attach, le_isa_attach), 124 DEVMETHOD(device_detach, le_isa_detach), 125 /* We can just use the suspend method here. */ 126 DEVMETHOD(device_shutdown, le_isa_suspend), 127 DEVMETHOD(device_suspend, le_isa_suspend), 128 DEVMETHOD(device_resume, le_isa_resume), 129 130 { 0, 0 } 131 }; 132 133 struct le_isa_param { 134 const char *name; 135 u_long iosize; 136 bus_size_t rap; 137 bus_size_t rdp; 138 bus_size_t macstart; 139 int macstride; 140 } static const le_isa_params[] = { 141 { "BICC Isolan", 24, 0xe, 0xc, 0, 2 }, 142 { "Novell NE2100", 16, 0x12, 0x10, 0, 1 } 143 }; 144 145 static struct isa_pnp_id le_isa_ids[] = { 146 { 0x0322690e, "Cabletron E2200 Single Chip" }, /* CSI2203 */ 147 { 0x0110490a, "Boca LANCard Combo" }, /* BRI1001 */ 148 { 0x0100a60a, "Melco Inc. LGY-IV" }, /* BUF0001 */ 149 { 0xd880d041, "Novell NE2100" }, /* PNP80D8 */ 150 { 0x0082d041, "Cabletron E2100 Series DNI" }, /* PNP8200 */ 151 { 0x3182d041, "AMD AM1500T/AM2100" }, /* PNP8231 */ 152 { 0x8c82d041, "AMD PCnet-ISA" }, /* PNP828C */ 153 { 0x8d82d041, "AMD PCnet-32" }, /* PNP828D */ 154 { 0xcefaedfe, "Racal InterLan EtherBlaster" }, /* _WMFACE */ 155 { 0, NULL } 156 }; 157 158 static void le_isa_wrcsr(struct lance_softc *, uint16_t, uint16_t); 159 static uint16_t le_isa_rdcsr(struct lance_softc *, uint16_t); 160 static bus_dmamap_callback_t le_isa_dma_callback; 161 static int le_isa_probe_legacy(device_t, const struct le_isa_param *); 162 163 static void 164 le_isa_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val) 165 { 166 struct le_isa_softc *lesc = (struct le_isa_softc *)sc; 167 168 bus_write_2(lesc->sc_rres, lesc->sc_rap, port); 169 bus_barrier(lesc->sc_rres, lesc->sc_rap, 2, BUS_SPACE_BARRIER_WRITE); 170 bus_write_2(lesc->sc_rres, lesc->sc_rdp, val); 171 } 172 173 static uint16_t 174 le_isa_rdcsr(struct lance_softc *sc, uint16_t port) 175 { 176 struct le_isa_softc *lesc = (struct le_isa_softc *)sc; 177 178 bus_write_2(lesc->sc_rres, lesc->sc_rap, port); 179 bus_barrier(lesc->sc_rres, lesc->sc_rap, 2, BUS_SPACE_BARRIER_WRITE); 180 return (bus_read_2(lesc->sc_rres, lesc->sc_rdp)); 181 } 182 183 static void 184 le_isa_dma_callback(void *xsc, bus_dma_segment_t *segs, int nsegs, int error) 185 { 186 struct lance_softc *sc = (struct lance_softc *)xsc; 187 188 if (error != 0) 189 return; 190 KASSERT(nsegs == 1, ("%s: bad DMA segment count", __func__)); 191 sc->sc_addr = segs[0].ds_addr; 192 } 193 194 static int 195 le_isa_probe_legacy(device_t dev, const struct le_isa_param *leip) 196 { 197 struct le_isa_softc *lesc; 198 struct lance_softc *sc; 199 int error, i; 200 201 lesc = device_get_softc(dev); 202 sc = &lesc->sc_am7990.lsc; 203 204 i = 0; 205 lesc->sc_rres = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT, &i, 206 leip->iosize, RF_ACTIVE); 207 if (lesc->sc_rres == NULL) 208 return (ENXIO); 209 lesc->sc_rap = leip->rap; 210 lesc->sc_rdp = leip->rdp; 211 212 /* Stop the chip and put it in a known state. */ 213 le_isa_wrcsr(sc, LE_CSR0, LE_C0_STOP); 214 DELAY(100); 215 if (le_isa_rdcsr(sc, LE_CSR0) != LE_C0_STOP) { 216 error = ENXIO; 217 goto fail; 218 } 219 le_isa_wrcsr(sc, LE_CSR3, 0); 220 error = 0; 221 222 fail: 223 bus_release_resource(dev, SYS_RES_IOPORT, 224 rman_get_rid(lesc->sc_rres), lesc->sc_rres); 225 return (error); 226 } 227 228 static int 229 le_isa_probe(device_t dev) 230 { 231 int i; 232 233 switch (ISA_PNP_PROBE(device_get_parent(dev), dev, le_isa_ids)) { 234 case 0: 235 return (BUS_PROBE_DEFAULT); 236 case ENOENT: 237 for (i = 0; i < nitems(le_isa_params); i++) { 238 if (le_isa_probe_legacy(dev, &le_isa_params[i]) == 0) { 239 device_set_desc(dev, le_isa_params[i].name); 240 return (BUS_PROBE_DEFAULT); 241 } 242 } 243 /* FALLTHROUGH */ 244 case ENXIO: 245 default: 246 return (ENXIO); 247 } 248 } 249 250 static int 251 le_isa_attach(device_t dev) 252 { 253 struct le_isa_softc *lesc; 254 struct lance_softc *sc; 255 bus_size_t macstart, rap, rdp; 256 int error, i, j, macstride; 257 258 lesc = device_get_softc(dev); 259 sc = &lesc->sc_am7990.lsc; 260 261 LE_LOCK_INIT(sc, device_get_nameunit(dev)); 262 263 j = 0; 264 switch (ISA_PNP_PROBE(device_get_parent(dev), dev, le_isa_ids)) { 265 case 0: 266 lesc->sc_rres = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 267 &j, RF_ACTIVE); 268 rap = PCNET_RAP; 269 rdp = PCNET_RDP; 270 macstart = 0; 271 macstride = 1; 272 break; 273 case ENOENT: 274 for (i = 0; i < nitems(le_isa_params); i++) { 275 if (le_isa_probe_legacy(dev, &le_isa_params[i]) == 0) { 276 lesc->sc_rres = bus_alloc_resource_anywhere(dev, 277 SYS_RES_IOPORT, &j, 278 le_isa_params[i].iosize, RF_ACTIVE); 279 rap = le_isa_params[i].rap; 280 rdp = le_isa_params[i].rdp; 281 macstart = le_isa_params[i].macstart; 282 macstride = le_isa_params[i].macstride; 283 goto found; 284 } 285 } 286 /* FALLTHROUGH */ 287 case ENXIO: 288 default: 289 device_printf(dev, "cannot determine chip\n"); 290 error = ENXIO; 291 goto fail_mtx; 292 } 293 294 found: 295 if (lesc->sc_rres == NULL) { 296 device_printf(dev, "cannot allocate registers\n"); 297 error = ENXIO; 298 goto fail_mtx; 299 } 300 lesc->sc_rap = rap; 301 lesc->sc_rdp = rdp; 302 303 i = 0; 304 if ((lesc->sc_dres = bus_alloc_resource_any(dev, SYS_RES_DRQ, 305 &i, RF_ACTIVE)) == NULL) { 306 device_printf(dev, "cannot allocate DMA channel\n"); 307 error = ENXIO; 308 goto fail_rres; 309 } 310 311 i = 0; 312 if ((lesc->sc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, 313 &i, RF_SHAREABLE | RF_ACTIVE)) == NULL) { 314 device_printf(dev, "cannot allocate interrupt\n"); 315 error = ENXIO; 316 goto fail_dres; 317 } 318 319 error = bus_dma_tag_create( 320 bus_get_dma_tag(dev), /* parent */ 321 1, 0, /* alignment, boundary */ 322 BUS_SPACE_MAXADDR_24BIT, /* lowaddr */ 323 BUS_SPACE_MAXADDR, /* highaddr */ 324 NULL, NULL, /* filter, filterarg */ 325 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 326 0, /* nsegments */ 327 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 328 0, /* flags */ 329 NULL, NULL, /* lockfunc, lockarg */ 330 &lesc->sc_pdmat); 331 if (error != 0) { 332 device_printf(dev, "cannot allocate parent DMA tag\n"); 333 goto fail_ires; 334 } 335 336 sc->sc_memsize = LE_ISA_MEMSIZE; 337 /* 338 * For Am79C90, Am79C961 and Am79C961A the init block must be 2-byte 339 * aligned and the ring descriptors must be 8-byte aligned. 340 */ 341 error = bus_dma_tag_create( 342 lesc->sc_pdmat, /* parent */ 343 8, 0, /* alignment, boundary */ 344 BUS_SPACE_MAXADDR_24BIT, /* lowaddr */ 345 BUS_SPACE_MAXADDR, /* highaddr */ 346 NULL, NULL, /* filter, filterarg */ 347 sc->sc_memsize, /* maxsize */ 348 1, /* nsegments */ 349 sc->sc_memsize, /* maxsegsize */ 350 0, /* flags */ 351 NULL, NULL, /* lockfunc, lockarg */ 352 &lesc->sc_dmat); 353 if (error != 0) { 354 device_printf(dev, "cannot allocate buffer DMA tag\n"); 355 goto fail_pdtag; 356 } 357 358 error = bus_dmamem_alloc(lesc->sc_dmat, (void **)&sc->sc_mem, 359 BUS_DMA_WAITOK | BUS_DMA_COHERENT, &lesc->sc_dmam); 360 if (error != 0) { 361 device_printf(dev, "cannot allocate DMA buffer memory\n"); 362 goto fail_dtag; 363 } 364 365 sc->sc_addr = 0; 366 error = bus_dmamap_load(lesc->sc_dmat, lesc->sc_dmam, sc->sc_mem, 367 sc->sc_memsize, le_isa_dma_callback, sc, 0); 368 if (error != 0 || sc->sc_addr == 0) { 369 device_printf(dev, "cannot load DMA buffer map\n"); 370 goto fail_dmem; 371 } 372 373 isa_dmacascade(rman_get_start(lesc->sc_dres)); 374 375 sc->sc_flags = 0; 376 sc->sc_conf3 = 0; 377 378 /* 379 * Extract the physical MAC address from the ROM. 380 */ 381 for (i = 0; i < sizeof(sc->sc_enaddr); i++) 382 sc->sc_enaddr[i] = bus_read_1(lesc->sc_rres, 383 macstart + i * macstride); 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_hwreset = NULL; 394 sc->sc_hwinit = NULL; 395 sc->sc_hwintr = NULL; 396 sc->sc_nocarrier = NULL; 397 sc->sc_mediachange = NULL; 398 sc->sc_mediastatus = NULL; 399 sc->sc_supmedia = NULL; 400 401 error = am7990_config(&lesc->sc_am7990, device_get_name(dev), 402 device_get_unit(dev)); 403 if (error != 0) { 404 device_printf(dev, "cannot attach Am7990\n"); 405 goto fail_dmap; 406 } 407 408 error = bus_setup_intr(dev, lesc->sc_ires, INTR_TYPE_NET | INTR_MPSAFE, 409 NULL, am7990_intr, sc, &lesc->sc_ih); 410 if (error != 0) { 411 device_printf(dev, "cannot set up interrupt\n"); 412 goto fail_am7990; 413 } 414 415 return (0); 416 417 fail_am7990: 418 am7990_detach(&lesc->sc_am7990); 419 fail_dmap: 420 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam); 421 fail_dmem: 422 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam); 423 fail_dtag: 424 bus_dma_tag_destroy(lesc->sc_dmat); 425 fail_pdtag: 426 bus_dma_tag_destroy(lesc->sc_pdmat); 427 fail_ires: 428 bus_release_resource(dev, SYS_RES_IRQ, 429 rman_get_rid(lesc->sc_ires), lesc->sc_ires); 430 fail_dres: 431 bus_release_resource(dev, SYS_RES_DRQ, 432 rman_get_rid(lesc->sc_dres), lesc->sc_dres); 433 fail_rres: 434 bus_release_resource(dev, SYS_RES_IOPORT, 435 rman_get_rid(lesc->sc_rres), lesc->sc_rres); 436 fail_mtx: 437 LE_LOCK_DESTROY(sc); 438 return (error); 439 } 440 441 static int 442 le_isa_detach(device_t dev) 443 { 444 struct le_isa_softc *lesc; 445 struct lance_softc *sc; 446 447 lesc = device_get_softc(dev); 448 sc = &lesc->sc_am7990.lsc; 449 450 bus_teardown_intr(dev, lesc->sc_ires, lesc->sc_ih); 451 am7990_detach(&lesc->sc_am7990); 452 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam); 453 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam); 454 bus_dma_tag_destroy(lesc->sc_dmat); 455 bus_dma_tag_destroy(lesc->sc_pdmat); 456 bus_release_resource(dev, SYS_RES_IRQ, 457 rman_get_rid(lesc->sc_ires), lesc->sc_ires); 458 bus_release_resource(dev, SYS_RES_DRQ, 459 rman_get_rid(lesc->sc_dres), lesc->sc_dres); 460 bus_release_resource(dev, SYS_RES_IOPORT, 461 rman_get_rid(lesc->sc_rres), lesc->sc_rres); 462 LE_LOCK_DESTROY(sc); 463 464 return (0); 465 } 466 467 static int 468 le_isa_suspend(device_t dev) 469 { 470 struct le_isa_softc *lesc; 471 472 lesc = device_get_softc(dev); 473 474 lance_suspend(&lesc->sc_am7990.lsc); 475 476 return (0); 477 } 478 479 static int 480 le_isa_resume(device_t dev) 481 { 482 struct le_isa_softc *lesc; 483 484 lesc = device_get_softc(dev); 485 486 lance_resume(&lesc->sc_am7990.lsc); 487 488 return (0); 489 } 490 491 DEFINE_CLASS_0(le, le_isa_driver, le_isa_methods, sizeof(struct le_isa_softc)); 492 DRIVER_MODULE(le, isa, le_isa_driver, 0, 0); 493 MODULE_DEPEND(le, ether, 1, 1, 1); 494 ISA_PNP_INFO(le_isa_ids); 495