Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/le/if_le_isa.c
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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: releng/12.0/sys/dev/le/if_le_isa.c 327102 2017-12-23 06:49:27Z imp $"); 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 struct le_isa_param { 139 const char *name; 140 u_long iosize; 141 bus_size_t rap; 142 bus_size_t rdp; 143 bus_size_t macstart; 144 int macstride; 145 } static const le_isa_params[] = { 146 { "BICC Isolan", 24, 0xe, 0xc, 0, 2 }, 147 { "Novell NE2100", 16, 0x12, 0x10, 0, 1 } 148 }; 149 150 static struct isa_pnp_id le_isa_ids[] = { 151 { 0x0322690e, "Cabletron E2200 Single Chip" }, /* CSI2203 */ 152 { 0x0110490a, "Boca LANCard Combo" }, /* BRI1001 */ 153 { 0x0100a60a, "Melco Inc. LGY-IV" }, /* BUF0001 */ 154 { 0xd880d041, "Novell NE2100" }, /* PNP80D8 */ 155 { 0x0082d041, "Cabletron E2100 Series DNI" }, /* PNP8200 */ 156 { 0x3182d041, "AMD AM1500T/AM2100" }, /* PNP8231 */ 157 { 0x8c82d041, "AMD PCnet-ISA" }, /* PNP828C */ 158 { 0x8d82d041, "AMD PCnet-32" }, /* PNP828D */ 159 { 0xcefaedfe, "Racal InterLan EtherBlaster" }, /* _WMFACE */ 160 { 0, NULL } 161 }; 162 163 static void le_isa_wrcsr(struct lance_softc *, uint16_t, uint16_t); 164 static uint16_t le_isa_rdcsr(struct lance_softc *, uint16_t); 165 static bus_dmamap_callback_t le_isa_dma_callback; 166 static int le_isa_probe_legacy(device_t, const struct le_isa_param *); 167 168 static void 169 le_isa_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val) 170 { 171 struct le_isa_softc *lesc = (struct le_isa_softc *)sc; 172 173 bus_write_2(lesc->sc_rres, lesc->sc_rap, port); 174 bus_barrier(lesc->sc_rres, lesc->sc_rap, 2, BUS_SPACE_BARRIER_WRITE); 175 bus_write_2(lesc->sc_rres, lesc->sc_rdp, val); 176 } 177 178 static uint16_t 179 le_isa_rdcsr(struct lance_softc *sc, uint16_t port) 180 { 181 struct le_isa_softc *lesc = (struct le_isa_softc *)sc; 182 183 bus_write_2(lesc->sc_rres, lesc->sc_rap, port); 184 bus_barrier(lesc->sc_rres, lesc->sc_rap, 2, BUS_SPACE_BARRIER_WRITE); 185 return (bus_read_2(lesc->sc_rres, lesc->sc_rdp)); 186 } 187 188 static void 189 le_isa_dma_callback(void *xsc, bus_dma_segment_t *segs, int nsegs, int error) 190 { 191 struct lance_softc *sc = (struct lance_softc *)xsc; 192 193 if (error != 0) 194 return; 195 KASSERT(nsegs == 1, ("%s: bad DMA segment count", __func__)); 196 sc->sc_addr = segs[0].ds_addr; 197 } 198 199 static int 200 le_isa_probe_legacy(device_t dev, const struct le_isa_param *leip) 201 { 202 struct le_isa_softc *lesc; 203 struct lance_softc *sc; 204 int error, i; 205 206 lesc = device_get_softc(dev); 207 sc = &lesc->sc_am7990.lsc; 208 209 i = 0; 210 lesc->sc_rres = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT, &i, 211 leip->iosize, RF_ACTIVE); 212 if (lesc->sc_rres == NULL) 213 return (ENXIO); 214 lesc->sc_rap = leip->rap; 215 lesc->sc_rdp = leip->rdp; 216 217 /* Stop the chip and put it in a known state. */ 218 le_isa_wrcsr(sc, LE_CSR0, LE_C0_STOP); 219 DELAY(100); 220 if (le_isa_rdcsr(sc, LE_CSR0) != LE_C0_STOP) { 221 error = ENXIO; 222 goto fail; 223 } 224 le_isa_wrcsr(sc, LE_CSR3, 0); 225 error = 0; 226 227 fail: 228 bus_release_resource(dev, SYS_RES_IOPORT, 229 rman_get_rid(lesc->sc_rres), lesc->sc_rres); 230 return (error); 231 } 232 233 static int 234 le_isa_probe(device_t dev) 235 { 236 int i; 237 238 switch (ISA_PNP_PROBE(device_get_parent(dev), dev, le_isa_ids)) { 239 case 0: 240 return (BUS_PROBE_DEFAULT); 241 case ENOENT: 242 for (i = 0; i < nitems(le_isa_params); i++) { 243 if (le_isa_probe_legacy(dev, &le_isa_params[i]) == 0) { 244 device_set_desc(dev, le_isa_params[i].name); 245 return (BUS_PROBE_DEFAULT); 246 } 247 } 248 /* FALLTHROUGH */ 249 case ENXIO: 250 default: 251 return (ENXIO); 252 } 253 } 254 255 static int 256 le_isa_attach(device_t dev) 257 { 258 struct le_isa_softc *lesc; 259 struct lance_softc *sc; 260 bus_size_t macstart, rap, rdp; 261 int error, i, j, macstride; 262 263 lesc = device_get_softc(dev); 264 sc = &lesc->sc_am7990.lsc; 265 266 LE_LOCK_INIT(sc, device_get_nameunit(dev)); 267 268 j = 0; 269 switch (ISA_PNP_PROBE(device_get_parent(dev), dev, le_isa_ids)) { 270 case 0: 271 lesc->sc_rres = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 272 &j, RF_ACTIVE); 273 rap = PCNET_RAP; 274 rdp = PCNET_RDP; 275 macstart = 0; 276 macstride = 1; 277 break; 278 case ENOENT: 279 for (i = 0; i < nitems(le_isa_params); i++) { 280 if (le_isa_probe_legacy(dev, &le_isa_params[i]) == 0) { 281 lesc->sc_rres = bus_alloc_resource_anywhere(dev, 282 SYS_RES_IOPORT, &j, 283 le_isa_params[i].iosize, RF_ACTIVE); 284 rap = le_isa_params[i].rap; 285 rdp = le_isa_params[i].rdp; 286 macstart = le_isa_params[i].macstart; 287 macstride = le_isa_params[i].macstride; 288 goto found; 289 } 290 } 291 /* FALLTHROUGH */ 292 case ENXIO: 293 default: 294 device_printf(dev, "cannot determine chip\n"); 295 error = ENXIO; 296 goto fail_mtx; 297 } 298 299 found: 300 if (lesc->sc_rres == NULL) { 301 device_printf(dev, "cannot allocate registers\n"); 302 error = ENXIO; 303 goto fail_mtx; 304 } 305 lesc->sc_rap = rap; 306 lesc->sc_rdp = rdp; 307 308 i = 0; 309 if ((lesc->sc_dres = bus_alloc_resource_any(dev, SYS_RES_DRQ, 310 &i, RF_ACTIVE)) == NULL) { 311 device_printf(dev, "cannot allocate DMA channel\n"); 312 error = ENXIO; 313 goto fail_rres; 314 } 315 316 i = 0; 317 if ((lesc->sc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, 318 &i, RF_SHAREABLE | RF_ACTIVE)) == NULL) { 319 device_printf(dev, "cannot allocate interrupt\n"); 320 error = ENXIO; 321 goto fail_dres; 322 } 323 324 error = bus_dma_tag_create( 325 bus_get_dma_tag(dev), /* parent */ 326 1, 0, /* alignment, boundary */ 327 BUS_SPACE_MAXADDR_24BIT, /* lowaddr */ 328 BUS_SPACE_MAXADDR, /* highaddr */ 329 NULL, NULL, /* filter, filterarg */ 330 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 331 0, /* nsegments */ 332 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 333 0, /* flags */ 334 NULL, NULL, /* lockfunc, lockarg */ 335 &lesc->sc_pdmat); 336 if (error != 0) { 337 device_printf(dev, "cannot allocate parent DMA tag\n"); 338 goto fail_ires; 339 } 340 341 sc->sc_memsize = LE_ISA_MEMSIZE; 342 /* 343 * For Am79C90, Am79C961 and Am79C961A the init block must be 2-byte 344 * aligned and the ring descriptors must be 8-byte aligned. 345 */ 346 error = bus_dma_tag_create( 347 lesc->sc_pdmat, /* parent */ 348 8, 0, /* alignment, boundary */ 349 BUS_SPACE_MAXADDR_24BIT, /* lowaddr */ 350 BUS_SPACE_MAXADDR, /* highaddr */ 351 NULL, NULL, /* filter, filterarg */ 352 sc->sc_memsize, /* maxsize */ 353 1, /* nsegments */ 354 sc->sc_memsize, /* maxsegsize */ 355 0, /* flags */ 356 NULL, NULL, /* lockfunc, lockarg */ 357 &lesc->sc_dmat); 358 if (error != 0) { 359 device_printf(dev, "cannot allocate buffer DMA tag\n"); 360 goto fail_pdtag; 361 } 362 363 error = bus_dmamem_alloc(lesc->sc_dmat, (void **)&sc->sc_mem, 364 BUS_DMA_WAITOK | BUS_DMA_COHERENT, &lesc->sc_dmam); 365 if (error != 0) { 366 device_printf(dev, "cannot allocate DMA buffer memory\n"); 367 goto fail_dtag; 368 } 369 370 sc->sc_addr = 0; 371 error = bus_dmamap_load(lesc->sc_dmat, lesc->sc_dmam, sc->sc_mem, 372 sc->sc_memsize, le_isa_dma_callback, sc, 0); 373 if (error != 0 || sc->sc_addr == 0) { 374 device_printf(dev, "cannot load DMA buffer map\n"); 375 goto fail_dmem; 376 } 377 378 isa_dmacascade(rman_get_start(lesc->sc_dres)); 379 380 sc->sc_flags = 0; 381 sc->sc_conf3 = 0; 382 383 /* 384 * Extract the physical MAC address from the ROM. 385 */ 386 for (i = 0; i < sizeof(sc->sc_enaddr); i++) 387 sc->sc_enaddr[i] = bus_read_1(lesc->sc_rres, 388 macstart + i * macstride); 389 390 sc->sc_copytodesc = lance_copytobuf_contig; 391 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 392 sc->sc_copytobuf = lance_copytobuf_contig; 393 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 394 sc->sc_zerobuf = lance_zerobuf_contig; 395 396 sc->sc_rdcsr = le_isa_rdcsr; 397 sc->sc_wrcsr = le_isa_wrcsr; 398 sc->sc_hwreset = NULL; 399 sc->sc_hwinit = NULL; 400 sc->sc_hwintr = NULL; 401 sc->sc_nocarrier = NULL; 402 sc->sc_mediachange = NULL; 403 sc->sc_mediastatus = NULL; 404 sc->sc_supmedia = NULL; 405 406 error = am7990_config(&lesc->sc_am7990, device_get_name(dev), 407 device_get_unit(dev)); 408 if (error != 0) { 409 device_printf(dev, "cannot attach Am7990\n"); 410 goto fail_dmap; 411 } 412 413 error = bus_setup_intr(dev, lesc->sc_ires, INTR_TYPE_NET | INTR_MPSAFE, 414 NULL, am7990_intr, sc, &lesc->sc_ih); 415 if (error != 0) { 416 device_printf(dev, "cannot set up interrupt\n"); 417 goto fail_am7990; 418 } 419 420 return (0); 421 422 fail_am7990: 423 am7990_detach(&lesc->sc_am7990); 424 fail_dmap: 425 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam); 426 fail_dmem: 427 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam); 428 fail_dtag: 429 bus_dma_tag_destroy(lesc->sc_dmat); 430 fail_pdtag: 431 bus_dma_tag_destroy(lesc->sc_pdmat); 432 fail_ires: 433 bus_release_resource(dev, SYS_RES_IRQ, 434 rman_get_rid(lesc->sc_ires), lesc->sc_ires); 435 fail_dres: 436 bus_release_resource(dev, SYS_RES_DRQ, 437 rman_get_rid(lesc->sc_dres), lesc->sc_dres); 438 fail_rres: 439 bus_release_resource(dev, SYS_RES_IOPORT, 440 rman_get_rid(lesc->sc_rres), lesc->sc_rres); 441 fail_mtx: 442 LE_LOCK_DESTROY(sc); 443 return (error); 444 } 445 446 static int 447 le_isa_detach(device_t dev) 448 { 449 struct le_isa_softc *lesc; 450 struct lance_softc *sc; 451 452 lesc = device_get_softc(dev); 453 sc = &lesc->sc_am7990.lsc; 454 455 bus_teardown_intr(dev, lesc->sc_ires, lesc->sc_ih); 456 am7990_detach(&lesc->sc_am7990); 457 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam); 458 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam); 459 bus_dma_tag_destroy(lesc->sc_dmat); 460 bus_dma_tag_destroy(lesc->sc_pdmat); 461 bus_release_resource(dev, SYS_RES_IRQ, 462 rman_get_rid(lesc->sc_ires), lesc->sc_ires); 463 bus_release_resource(dev, SYS_RES_DRQ, 464 rman_get_rid(lesc->sc_dres), lesc->sc_dres); 465 bus_release_resource(dev, SYS_RES_IOPORT, 466 rman_get_rid(lesc->sc_rres), lesc->sc_rres); 467 LE_LOCK_DESTROY(sc); 468 469 return (0); 470 } 471 472 static int 473 le_isa_suspend(device_t dev) 474 { 475 struct le_isa_softc *lesc; 476 477 lesc = device_get_softc(dev); 478 479 lance_suspend(&lesc->sc_am7990.lsc); 480 481 return (0); 482 } 483 484 static int 485 le_isa_resume(device_t dev) 486 { 487 struct le_isa_softc *lesc; 488 489 lesc = device_get_softc(dev); 490 491 lance_resume(&lesc->sc_am7990.lsc); 492 493 return (0); 494 } 495 496 DEFINE_CLASS_0(le, le_isa_driver, le_isa_methods, sizeof(struct le_isa_softc)); 497 DRIVER_MODULE(le, isa, le_isa_driver, le_devclass, 0, 0); 498 MODULE_DEPEND(le, ether, 1, 1, 1); 499 ISA_PNP_INFO(le_isa_ids);
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