1 /* $NetBSD: if_le_isa.c,v 1.41 2005/12/24 20:27:41 perry 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 __FBSDID("$FreeBSD$"); 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/bus.h> 80 #include <sys/endian.h> 81 #include <sys/kernel.h> 82 #include <sys/lock.h> 83 #include <sys/module.h> 84 #include <sys/mutex.h> 85 #include <sys/resource.h> 86 #include <sys/rman.h> 87 #include <sys/socket.h> 88 89 #include <net/ethernet.h> 90 #include <net/if.h> 91 #include <net/if_media.h> 92 93 #include <machine/bus.h> 94 #include <machine/resource.h> 95 96 #include <isa/isavar.h> 97 98 #include <dev/le/lancereg.h> 99 #include <dev/le/lancevar.h> 100 #include <dev/le/am7990var.h> 101 102 #define LE_ISA_MEMSIZE (16*1024) 103 #define PCNET_RDP 0x10 104 #define PCNET_RAP 0x12 105 106 struct le_isa_softc { 107 struct am7990_softc sc_am7990; /* glue to MI code */ 108 109 bus_size_t sc_rap; /* offsets to LANCE... */ 110 bus_size_t sc_rdp; /* ...registers */ 111 112 int sc_rrid; 113 struct resource *sc_rres; 114 bus_space_tag_t sc_regt; 115 bus_space_handle_t sc_regh; 116 117 int sc_drid; 118 struct resource *sc_dres; 119 120 int sc_irid; 121 struct resource *sc_ires; 122 void *sc_ih; 123 124 bus_dma_tag_t sc_pdmat; 125 bus_dma_tag_t sc_dmat; 126 bus_dmamap_t sc_dmam; 127 }; 128 129 static device_probe_t le_isa_probe; 130 static device_attach_t le_isa_attach; 131 static device_detach_t le_isa_detach; 132 static device_resume_t le_isa_resume; 133 static device_suspend_t le_isa_suspend; 134 135 static device_method_t le_isa_methods[] = { 136 /* Device interface */ 137 DEVMETHOD(device_probe, le_isa_probe), 138 DEVMETHOD(device_attach, le_isa_attach), 139 DEVMETHOD(device_detach, le_isa_detach), 140 /* We can just use the suspend method here. */ 141 DEVMETHOD(device_shutdown, le_isa_suspend), 142 DEVMETHOD(device_suspend, le_isa_suspend), 143 DEVMETHOD(device_resume, le_isa_resume), 144 145 { 0, 0 } 146 }; 147 148 DEFINE_CLASS_0(le, le_isa_driver, le_isa_methods, sizeof(struct le_isa_softc)); 149 DRIVER_MODULE(le, isa, le_isa_driver, le_devclass, 0, 0); 150 MODULE_DEPEND(le, ether, 1, 1, 1); 151 152 struct le_isa_param { 153 const char *name; 154 u_long iosize; 155 bus_size_t rap; 156 bus_size_t rdp; 157 bus_size_t macstart; 158 int macstride; 159 } static const le_isa_params[] = { 160 { "BICC Isolan", 24, 0xe, 0xc, 0, 2 }, 161 { "Novell NE2100", 16, 0x12, 0x10, 0, 1 } 162 }; 163 164 static struct isa_pnp_id le_isa_ids[] = { 165 { 0x0322690e, "Cabletron E2200 Single Chip" }, /* CSI2203 */ 166 { 0x0110490a, "Boca LANCard Combo" }, /* BRI1001 */ 167 { 0x0100a60a, "Melco Inc. LGY-IV" }, /* BUF0001 */ 168 { 0xd880d041, "Novell NE2100" }, /* PNP80D8 */ 169 { 0x0082d041, "Cabletron E2100 Series DNI" }, /* PNP8200 */ 170 { 0x3182d041, "AMD AM1500T/AM2100" }, /* PNP8231 */ 171 { 0x8c82d041, "AMD PCnet-ISA" }, /* PNP828C */ 172 { 0x8d82d041, "AMD PCnet-32" }, /* PNP828D */ 173 { 0xcefaedfe, "Racal InterLan EtherBlaster" }, /* _WMFACE */ 174 { 0, NULL } 175 }; 176 177 static void le_isa_wrcsr(struct lance_softc *, uint16_t, uint16_t); 178 static uint16_t le_isa_rdcsr(struct lance_softc *, uint16_t); 179 static bus_dmamap_callback_t le_isa_dma_callback; 180 static int le_isa_probe_legacy(device_t, const struct le_isa_param *); 181 182 static void 183 le_isa_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val) 184 { 185 struct le_isa_softc *lesc = (struct le_isa_softc *)sc; 186 187 bus_space_write_2(lesc->sc_regt, lesc->sc_regh, lesc->sc_rap, port); 188 bus_space_barrier(lesc->sc_regt, lesc->sc_regh, lesc->sc_rap, 2, 189 BUS_SPACE_BARRIER_WRITE); 190 bus_space_write_2(lesc->sc_regt, lesc->sc_regh, lesc->sc_rdp, val); 191 } 192 193 static uint16_t 194 le_isa_rdcsr(struct lance_softc *sc, uint16_t port) 195 { 196 struct le_isa_softc *lesc = (struct le_isa_softc *)sc; 197 198 bus_space_write_2(lesc->sc_regt, lesc->sc_regh, lesc->sc_rap, port); 199 bus_space_barrier(lesc->sc_regt, lesc->sc_regh, lesc->sc_rap, 2, 200 BUS_SPACE_BARRIER_WRITE); 201 return (bus_space_read_2(lesc->sc_regt, lesc->sc_regh, lesc->sc_rdp)); 202 } 203 204 static void 205 le_isa_dma_callback(void *xsc, bus_dma_segment_t *segs, int nsegs, int error) 206 { 207 struct lance_softc *sc = (struct lance_softc *)xsc; 208 209 if (error != 0) 210 return; 211 KASSERT(nsegs == 1, ("%s: bad DMA segment count", __func__)); 212 sc->sc_addr = segs[0].ds_addr; 213 } 214 215 static int 216 le_isa_probe_legacy(device_t dev, const struct le_isa_param *leip) 217 { 218 struct le_isa_softc *lesc; 219 struct lance_softc *sc; 220 int error; 221 222 lesc = device_get_softc(dev); 223 sc = &lesc->sc_am7990.lsc; 224 225 lesc->sc_rrid = 0; 226 lesc->sc_rres = bus_alloc_resource(dev, SYS_RES_IOPORT, &lesc->sc_rrid, 227 0, ~0, leip->iosize, RF_ACTIVE); 228 if (lesc->sc_rres == NULL) 229 return (ENXIO); 230 lesc->sc_regt = rman_get_bustag(lesc->sc_rres); 231 lesc->sc_regh = rman_get_bushandle(lesc->sc_rres); 232 lesc->sc_rap = leip->rap; 233 lesc->sc_rdp = leip->rdp; 234 235 /* Stop the chip and put it in a known state. */ 236 le_isa_wrcsr(sc, LE_CSR0, LE_C0_STOP); 237 DELAY(100); 238 if (le_isa_rdcsr(sc, LE_CSR0) != LE_C0_STOP) { 239 error = ENXIO; 240 goto fail; 241 } 242 le_isa_wrcsr(sc, LE_CSR3, 0); 243 error = 0; 244 245 fail: 246 bus_release_resource(dev, SYS_RES_IOPORT, lesc->sc_rrid, lesc->sc_rres); 247 return (error); 248 } 249 250 static int 251 le_isa_probe(device_t dev) 252 { 253 int i; 254 255 switch (ISA_PNP_PROBE(device_get_parent(dev), dev, le_isa_ids)) { 256 case 0: 257 return (BUS_PROBE_DEFAULT); 258 case ENOENT: 259 for (i = 0; i < sizeof(le_isa_params) / 260 sizeof(le_isa_params[0]); i++) { 261 if (le_isa_probe_legacy(dev, &le_isa_params[i]) == 0) { 262 device_set_desc(dev, le_isa_params[i].name); 263 return (BUS_PROBE_DEFAULT); 264 } 265 } 266 /* FALLTHROUGH */ 267 case ENXIO: 268 default: 269 return (ENXIO); 270 } 271 } 272 273 static int 274 le_isa_attach(device_t dev) 275 { 276 struct le_isa_softc *lesc; 277 struct lance_softc *sc; 278 bus_size_t macstart, rap, rdp; 279 int error, i, macstride; 280 281 lesc = device_get_softc(dev); 282 sc = &lesc->sc_am7990.lsc; 283 284 LE_LOCK_INIT(sc, device_get_nameunit(dev)); 285 286 lesc->sc_rrid = 0; 287 switch (ISA_PNP_PROBE(device_get_parent(dev), dev, le_isa_ids)) { 288 case 0: 289 lesc->sc_rres = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 290 &lesc->sc_rrid, RF_ACTIVE); 291 rap = PCNET_RAP; 292 rdp = PCNET_RDP; 293 macstart = 0; 294 macstride = 1; 295 break; 296 case ENOENT: 297 for (i = 0; i < sizeof(le_isa_params) / 298 sizeof(le_isa_params[0]); i++) { 299 if (le_isa_probe_legacy(dev, &le_isa_params[i]) == 0) { 300 lesc->sc_rres = bus_alloc_resource(dev, 301 SYS_RES_IOPORT, &lesc->sc_rrid, 0, ~0, 302 le_isa_params[i].iosize, RF_ACTIVE); 303 rap = le_isa_params[i].rap; 304 rdp = le_isa_params[i].rdp; 305 macstart = le_isa_params[i].macstart; 306 macstride = le_isa_params[i].macstride; 307 goto found; 308 } 309 } 310 /* FALLTHROUGH */ 311 case ENXIO: 312 default: 313 device_printf(dev, "cannot determine chip\n"); 314 error = ENXIO; 315 goto fail_mtx; 316 } 317 318 found: 319 if (lesc->sc_rres == NULL) { 320 device_printf(dev, "cannot allocate registers\n"); 321 error = ENXIO; 322 goto fail_mtx; 323 } 324 lesc->sc_regt = rman_get_bustag(lesc->sc_rres); 325 lesc->sc_regh = rman_get_bushandle(lesc->sc_rres); 326 lesc->sc_rap = rap; 327 lesc->sc_rdp = rdp; 328 329 lesc->sc_drid = 0; 330 if ((lesc->sc_dres = bus_alloc_resource_any(dev, SYS_RES_DRQ, 331 &lesc->sc_drid, RF_ACTIVE)) == NULL) { 332 device_printf(dev, "cannot allocate DMA channel\n"); 333 error = ENXIO; 334 goto fail_rres; 335 } 336 337 lesc->sc_irid = 0; 338 if ((lesc->sc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, 339 &lesc->sc_irid, RF_SHAREABLE | RF_ACTIVE)) == NULL) { 340 device_printf(dev, "cannot allocate interrupt\n"); 341 error = ENXIO; 342 goto fail_dres; 343 } 344 345 error = bus_dma_tag_create( 346 bus_get_dma_tag(dev), /* parent */ 347 1, 0, /* alignment, boundary */ 348 BUS_SPACE_MAXADDR_24BIT, /* lowaddr */ 349 BUS_SPACE_MAXADDR, /* highaddr */ 350 NULL, NULL, /* filter, filterarg */ 351 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 352 0, /* nsegments */ 353 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 354 0, /* flags */ 355 NULL, NULL, /* lockfunc, lockarg */ 356 &lesc->sc_pdmat); 357 if (error != 0) { 358 device_printf(dev, "cannot allocate parent DMA tag\n"); 359 goto fail_ires; 360 } 361 362 sc->sc_memsize = LE_ISA_MEMSIZE; 363 /* 364 * For Am79C90, Am79C961 and Am79C961A the init block must be 2-byte 365 * aligned and the ring descriptors must be 8-byte aligned. 366 */ 367 error = bus_dma_tag_create( 368 lesc->sc_pdmat, /* parent */ 369 8, 0, /* alignment, boundary */ 370 BUS_SPACE_MAXADDR_24BIT, /* lowaddr */ 371 BUS_SPACE_MAXADDR, /* highaddr */ 372 NULL, NULL, /* filter, filterarg */ 373 sc->sc_memsize, /* maxsize */ 374 1, /* nsegments */ 375 sc->sc_memsize, /* maxsegsize */ 376 0, /* flags */ 377 NULL, NULL, /* lockfunc, lockarg */ 378 &lesc->sc_dmat); 379 if (error != 0) { 380 device_printf(dev, "cannot allocate buffer DMA tag\n"); 381 goto fail_pdtag; 382 } 383 384 error = bus_dmamem_alloc(lesc->sc_dmat, (void **)&sc->sc_mem, 385 BUS_DMA_WAITOK | BUS_DMA_COHERENT, &lesc->sc_dmam); 386 if (error != 0) { 387 device_printf(dev, "cannot allocate DMA buffer memory\n"); 388 goto fail_dtag; 389 } 390 391 sc->sc_addr = 0; 392 error = bus_dmamap_load(lesc->sc_dmat, lesc->sc_dmam, sc->sc_mem, 393 sc->sc_memsize, le_isa_dma_callback, sc, 0); 394 if (error != 0 || sc->sc_addr == 0) { 395 device_printf(dev, "cannot load DMA buffer map\n"); 396 goto fail_dmem; 397 } 398 399 isa_dmacascade(rman_get_start(lesc->sc_dres)); 400 401 sc->sc_flags = 0; 402 sc->sc_conf3 = 0; 403 404 /* 405 * Extract the physical MAC address from the ROM. 406 */ 407 for (i = 0; i < sizeof(sc->sc_enaddr); i++) 408 sc->sc_enaddr[i] = bus_space_read_1(lesc->sc_regt, 409 lesc->sc_regh, macstart + i * macstride); 410 411 sc->sc_copytodesc = lance_copytobuf_contig; 412 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 413 sc->sc_copytobuf = lance_copytobuf_contig; 414 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 415 sc->sc_zerobuf = lance_zerobuf_contig; 416 417 sc->sc_rdcsr = le_isa_rdcsr; 418 sc->sc_wrcsr = le_isa_wrcsr; 419 sc->sc_hwreset = NULL; 420 sc->sc_hwinit = NULL; 421 sc->sc_hwintr = NULL; 422 sc->sc_nocarrier = NULL; 423 sc->sc_mediachange = NULL; 424 sc->sc_mediastatus = NULL; 425 sc->sc_supmedia = NULL; 426 427 error = am7990_config(&lesc->sc_am7990, device_get_name(dev), 428 device_get_unit(dev)); 429 if (error != 0) { 430 device_printf(dev, "cannot attach Am7990\n"); 431 goto fail_dmap; 432 } 433 434 error = bus_setup_intr(dev, lesc->sc_ires, INTR_TYPE_NET | INTR_MPSAFE, 435 NULL, am7990_intr, sc, &lesc->sc_ih); 436 if (error != 0) { 437 device_printf(dev, "cannot set up interrupt\n"); 438 goto fail_am7990; 439 } 440 441 return (0); 442 443 fail_am7990: 444 am7990_detach(&lesc->sc_am7990); 445 fail_dmap: 446 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam); 447 fail_dmem: 448 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam); 449 fail_dtag: 450 bus_dma_tag_destroy(lesc->sc_dmat); 451 fail_pdtag: 452 bus_dma_tag_destroy(lesc->sc_pdmat); 453 fail_ires: 454 bus_release_resource(dev, SYS_RES_IRQ, lesc->sc_irid, lesc->sc_ires); 455 fail_dres: 456 bus_release_resource(dev, SYS_RES_DRQ, lesc->sc_drid, lesc->sc_dres); 457 fail_rres: 458 bus_release_resource(dev, SYS_RES_IOPORT, lesc->sc_rrid, lesc->sc_rres); 459 fail_mtx: 460 LE_LOCK_DESTROY(sc); 461 return (error); 462 } 463 464 static int 465 le_isa_detach(device_t dev) 466 { 467 struct le_isa_softc *lesc; 468 struct lance_softc *sc; 469 470 lesc = device_get_softc(dev); 471 sc = &lesc->sc_am7990.lsc; 472 473 bus_teardown_intr(dev, lesc->sc_ires, lesc->sc_ih); 474 am7990_detach(&lesc->sc_am7990); 475 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam); 476 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam); 477 bus_dma_tag_destroy(lesc->sc_dmat); 478 bus_dma_tag_destroy(lesc->sc_pdmat); 479 bus_release_resource(dev, SYS_RES_IRQ, lesc->sc_irid, lesc->sc_ires); 480 bus_release_resource(dev, SYS_RES_DRQ, lesc->sc_drid, lesc->sc_dres); 481 bus_release_resource(dev, SYS_RES_IOPORT, lesc->sc_rrid, lesc->sc_rres); 482 LE_LOCK_DESTROY(sc); 483 484 return (0); 485 } 486 487 static int 488 le_isa_suspend(device_t dev) 489 { 490 struct le_isa_softc *lesc; 491 492 lesc = device_get_softc(dev); 493 494 lance_suspend(&lesc->sc_am7990.lsc); 495 496 return (0); 497 } 498 499 static int 500 le_isa_resume(device_t dev) 501 { 502 struct le_isa_softc *lesc; 503 504 lesc = device_get_softc(dev); 505 506 lance_resume(&lesc->sc_am7990.lsc); 507 508 return (0); 509 } 510