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 * 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 struct resource *sc_rres; 113 114 struct resource *sc_dres; 115 116 struct resource *sc_ires; 117 void *sc_ih; 118 119 bus_dma_tag_t sc_pdmat; 120 bus_dma_tag_t sc_dmat; 121 bus_dmamap_t sc_dmam; 122 }; 123 124 static device_probe_t le_isa_probe; 125 static device_attach_t le_isa_attach; 126 static device_detach_t le_isa_detach; 127 static device_resume_t le_isa_resume; 128 static device_suspend_t le_isa_suspend; 129 130 static device_method_t le_isa_methods[] = { 131 /* Device interface */ 132 DEVMETHOD(device_probe, le_isa_probe), 133 DEVMETHOD(device_attach, le_isa_attach), 134 DEVMETHOD(device_detach, le_isa_detach), 135 /* We can just use the suspend method here. */ 136 DEVMETHOD(device_shutdown, le_isa_suspend), 137 DEVMETHOD(device_suspend, le_isa_suspend), 138 DEVMETHOD(device_resume, le_isa_resume), 139 140 { 0, 0 } 141 }; 142 143 DEFINE_CLASS_0(le, le_isa_driver, le_isa_methods, sizeof(struct le_isa_softc)); 144 DRIVER_MODULE(le, isa, le_isa_driver, le_devclass, 0, 0); 145 MODULE_DEPEND(le, ether, 1, 1, 1); 146 147 struct le_isa_param { 148 const char *name; 149 u_long iosize; 150 bus_size_t rap; 151 bus_size_t rdp; 152 bus_size_t macstart; 153 int macstride; 154 } static const le_isa_params[] = { 155 { "BICC Isolan", 24, 0xe, 0xc, 0, 2 }, 156 { "Novell NE2100", 16, 0x12, 0x10, 0, 1 } 157 }; 158 159 static struct isa_pnp_id le_isa_ids[] = { 160 { 0x0322690e, "Cabletron E2200 Single Chip" }, /* CSI2203 */ 161 { 0x0110490a, "Boca LANCard Combo" }, /* BRI1001 */ 162 { 0x0100a60a, "Melco Inc. LGY-IV" }, /* BUF0001 */ 163 { 0xd880d041, "Novell NE2100" }, /* PNP80D8 */ 164 { 0x0082d041, "Cabletron E2100 Series DNI" }, /* PNP8200 */ 165 { 0x3182d041, "AMD AM1500T/AM2100" }, /* PNP8231 */ 166 { 0x8c82d041, "AMD PCnet-ISA" }, /* PNP828C */ 167 { 0x8d82d041, "AMD PCnet-32" }, /* PNP828D */ 168 { 0xcefaedfe, "Racal InterLan EtherBlaster" }, /* _WMFACE */ 169 { 0, NULL } 170 }; 171 172 static void le_isa_wrcsr(struct lance_softc *, uint16_t, uint16_t); 173 static uint16_t le_isa_rdcsr(struct lance_softc *, uint16_t); 174 static bus_dmamap_callback_t le_isa_dma_callback; 175 static int le_isa_probe_legacy(device_t, const struct le_isa_param *); 176 177 static void 178 le_isa_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val) 179 { 180 struct le_isa_softc *lesc = (struct le_isa_softc *)sc; 181 182 bus_write_2(lesc->sc_rres, lesc->sc_rap, port); 183 bus_barrier(lesc->sc_rres, lesc->sc_rap, 2, BUS_SPACE_BARRIER_WRITE); 184 bus_write_2(lesc->sc_rres, lesc->sc_rdp, val); 185 } 186 187 static uint16_t 188 le_isa_rdcsr(struct lance_softc *sc, uint16_t port) 189 { 190 struct le_isa_softc *lesc = (struct le_isa_softc *)sc; 191 192 bus_write_2(lesc->sc_rres, lesc->sc_rap, port); 193 bus_barrier(lesc->sc_rres, lesc->sc_rap, 2, BUS_SPACE_BARRIER_WRITE); 194 return (bus_read_2(lesc->sc_rres, lesc->sc_rdp)); 195 } 196 197 static void 198 le_isa_dma_callback(void *xsc, bus_dma_segment_t *segs, int nsegs, int error) 199 { 200 struct lance_softc *sc = (struct lance_softc *)xsc; 201 202 if (error != 0) 203 return; 204 KASSERT(nsegs == 1, ("%s: bad DMA segment count", __func__)); 205 sc->sc_addr = segs[0].ds_addr; 206 } 207 208 static int 209 le_isa_probe_legacy(device_t dev, const struct le_isa_param *leip) 210 { 211 struct le_isa_softc *lesc; 212 struct lance_softc *sc; 213 int error, i; 214 215 lesc = device_get_softc(dev); 216 sc = &lesc->sc_am7990.lsc; 217 218 i = 0; 219 lesc->sc_rres = bus_alloc_resource(dev, SYS_RES_IOPORT, &i, 0, ~0, 220 leip->iosize, RF_ACTIVE); 221 if (lesc->sc_rres == NULL) 222 return (ENXIO); 223 lesc->sc_rap = leip->rap; 224 lesc->sc_rdp = leip->rdp; 225 226 /* Stop the chip and put it in a known state. */ 227 le_isa_wrcsr(sc, LE_CSR0, LE_C0_STOP); 228 DELAY(100); 229 if (le_isa_rdcsr(sc, LE_CSR0) != LE_C0_STOP) { 230 error = ENXIO; 231 goto fail; 232 } 233 le_isa_wrcsr(sc, LE_CSR3, 0); 234 error = 0; 235 236 fail: 237 bus_release_resource(dev, SYS_RES_IOPORT, 238 rman_get_rid(lesc->sc_rres), lesc->sc_rres); 239 return (error); 240 } 241 242 static int 243 le_isa_probe(device_t dev) 244 { 245 int i; 246 247 switch (ISA_PNP_PROBE(device_get_parent(dev), dev, le_isa_ids)) { 248 case 0: 249 return (BUS_PROBE_DEFAULT); 250 case ENOENT: 251 for (i = 0; i < sizeof(le_isa_params) / 252 sizeof(le_isa_params[0]); i++) { 253 if (le_isa_probe_legacy(dev, &le_isa_params[i]) == 0) { 254 device_set_desc(dev, le_isa_params[i].name); 255 return (BUS_PROBE_DEFAULT); 256 } 257 } 258 /* FALLTHROUGH */ 259 case ENXIO: 260 default: 261 return (ENXIO); 262 } 263 } 264 265 static int 266 le_isa_attach(device_t dev) 267 { 268 struct le_isa_softc *lesc; 269 struct lance_softc *sc; 270 bus_size_t macstart, rap, rdp; 271 int error, i, j, macstride; 272 273 lesc = device_get_softc(dev); 274 sc = &lesc->sc_am7990.lsc; 275 276 LE_LOCK_INIT(sc, device_get_nameunit(dev)); 277 278 j = 0; 279 switch (ISA_PNP_PROBE(device_get_parent(dev), dev, le_isa_ids)) { 280 case 0: 281 lesc->sc_rres = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 282 &j, RF_ACTIVE); 283 rap = PCNET_RAP; 284 rdp = PCNET_RDP; 285 macstart = 0; 286 macstride = 1; 287 break; 288 case ENOENT: 289 for (i = 0; i < sizeof(le_isa_params) / 290 sizeof(le_isa_params[0]); i++) { 291 if (le_isa_probe_legacy(dev, &le_isa_params[i]) == 0) { 292 lesc->sc_rres = bus_alloc_resource(dev, 293 SYS_RES_IOPORT, &j, 0, ~0, 294 le_isa_params[i].iosize, RF_ACTIVE); 295 rap = le_isa_params[i].rap; 296 rdp = le_isa_params[i].rdp; 297 macstart = le_isa_params[i].macstart; 298 macstride = le_isa_params[i].macstride; 299 goto found; 300 } 301 } 302 /* FALLTHROUGH */ 303 case ENXIO: 304 default: 305 device_printf(dev, "cannot determine chip\n"); 306 error = ENXIO; 307 goto fail_mtx; 308 } 309 310 found: 311 if (lesc->sc_rres == NULL) { 312 device_printf(dev, "cannot allocate registers\n"); 313 error = ENXIO; 314 goto fail_mtx; 315 } 316 lesc->sc_rap = rap; 317 lesc->sc_rdp = rdp; 318 319 i = 0; 320 if ((lesc->sc_dres = bus_alloc_resource_any(dev, SYS_RES_DRQ, 321 &i, RF_ACTIVE)) == NULL) { 322 device_printf(dev, "cannot allocate DMA channel\n"); 323 error = ENXIO; 324 goto fail_rres; 325 } 326 327 i = 0; 328 if ((lesc->sc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, 329 &i, RF_SHAREABLE | RF_ACTIVE)) == NULL) { 330 device_printf(dev, "cannot allocate interrupt\n"); 331 error = ENXIO; 332 goto fail_dres; 333 } 334 335 error = bus_dma_tag_create( 336 bus_get_dma_tag(dev), /* parent */ 337 1, 0, /* alignment, boundary */ 338 BUS_SPACE_MAXADDR_24BIT, /* lowaddr */ 339 BUS_SPACE_MAXADDR, /* highaddr */ 340 NULL, NULL, /* filter, filterarg */ 341 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 342 0, /* nsegments */ 343 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 344 0, /* flags */ 345 NULL, NULL, /* lockfunc, lockarg */ 346 &lesc->sc_pdmat); 347 if (error != 0) { 348 device_printf(dev, "cannot allocate parent DMA tag\n"); 349 goto fail_ires; 350 } 351 352 sc->sc_memsize = LE_ISA_MEMSIZE; 353 /* 354 * For Am79C90, Am79C961 and Am79C961A the init block must be 2-byte 355 * aligned and the ring descriptors must be 8-byte aligned. 356 */ 357 error = bus_dma_tag_create( 358 lesc->sc_pdmat, /* parent */ 359 8, 0, /* alignment, boundary */ 360 BUS_SPACE_MAXADDR_24BIT, /* lowaddr */ 361 BUS_SPACE_MAXADDR, /* highaddr */ 362 NULL, NULL, /* filter, filterarg */ 363 sc->sc_memsize, /* maxsize */ 364 1, /* nsegments */ 365 sc->sc_memsize, /* maxsegsize */ 366 0, /* flags */ 367 NULL, NULL, /* lockfunc, lockarg */ 368 &lesc->sc_dmat); 369 if (error != 0) { 370 device_printf(dev, "cannot allocate buffer DMA tag\n"); 371 goto fail_pdtag; 372 } 373 374 error = bus_dmamem_alloc(lesc->sc_dmat, (void **)&sc->sc_mem, 375 BUS_DMA_WAITOK | BUS_DMA_COHERENT, &lesc->sc_dmam); 376 if (error != 0) { 377 device_printf(dev, "cannot allocate DMA buffer memory\n"); 378 goto fail_dtag; 379 } 380 381 sc->sc_addr = 0; 382 error = bus_dmamap_load(lesc->sc_dmat, lesc->sc_dmam, sc->sc_mem, 383 sc->sc_memsize, le_isa_dma_callback, sc, 0); 384 if (error != 0 || sc->sc_addr == 0) { 385 device_printf(dev, "cannot load DMA buffer map\n"); 386 goto fail_dmem; 387 } 388 389 isa_dmacascade(rman_get_start(lesc->sc_dres)); 390 391 sc->sc_flags = 0; 392 sc->sc_conf3 = 0; 393 394 /* 395 * Extract the physical MAC address from the ROM. 396 */ 397 for (i = 0; i < sizeof(sc->sc_enaddr); i++) 398 sc->sc_enaddr[i] = bus_read_1(lesc->sc_rres, 399 macstart + i * macstride); 400 401 sc->sc_copytodesc = lance_copytobuf_contig; 402 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 403 sc->sc_copytobuf = lance_copytobuf_contig; 404 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 405 sc->sc_zerobuf = lance_zerobuf_contig; 406 407 sc->sc_rdcsr = le_isa_rdcsr; 408 sc->sc_wrcsr = le_isa_wrcsr; 409 sc->sc_hwreset = NULL; 410 sc->sc_hwinit = NULL; 411 sc->sc_hwintr = NULL; 412 sc->sc_nocarrier = NULL; 413 sc->sc_mediachange = NULL; 414 sc->sc_mediastatus = NULL; 415 sc->sc_supmedia = NULL; 416 417 error = am7990_config(&lesc->sc_am7990, device_get_name(dev), 418 device_get_unit(dev)); 419 if (error != 0) { 420 device_printf(dev, "cannot attach Am7990\n"); 421 goto fail_dmap; 422 } 423 424 error = bus_setup_intr(dev, lesc->sc_ires, INTR_TYPE_NET | INTR_MPSAFE, 425 NULL, am7990_intr, sc, &lesc->sc_ih); 426 if (error != 0) { 427 device_printf(dev, "cannot set up interrupt\n"); 428 goto fail_am7990; 429 } 430 431 return (0); 432 433 fail_am7990: 434 am7990_detach(&lesc->sc_am7990); 435 fail_dmap: 436 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam); 437 fail_dmem: 438 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam); 439 fail_dtag: 440 bus_dma_tag_destroy(lesc->sc_dmat); 441 fail_pdtag: 442 bus_dma_tag_destroy(lesc->sc_pdmat); 443 fail_ires: 444 bus_release_resource(dev, SYS_RES_IRQ, 445 rman_get_rid(lesc->sc_ires), lesc->sc_ires); 446 fail_dres: 447 bus_release_resource(dev, SYS_RES_DRQ, 448 rman_get_rid(lesc->sc_dres), lesc->sc_dres); 449 fail_rres: 450 bus_release_resource(dev, SYS_RES_IOPORT, 451 rman_get_rid(lesc->sc_rres), lesc->sc_rres); 452 fail_mtx: 453 LE_LOCK_DESTROY(sc); 454 return (error); 455 } 456 457 static int 458 le_isa_detach(device_t dev) 459 { 460 struct le_isa_softc *lesc; 461 struct lance_softc *sc; 462 463 lesc = device_get_softc(dev); 464 sc = &lesc->sc_am7990.lsc; 465 466 bus_teardown_intr(dev, lesc->sc_ires, lesc->sc_ih); 467 am7990_detach(&lesc->sc_am7990); 468 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam); 469 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam); 470 bus_dma_tag_destroy(lesc->sc_dmat); 471 bus_dma_tag_destroy(lesc->sc_pdmat); 472 bus_release_resource(dev, SYS_RES_IRQ, 473 rman_get_rid(lesc->sc_ires), lesc->sc_ires); 474 bus_release_resource(dev, SYS_RES_DRQ, 475 rman_get_rid(lesc->sc_dres), lesc->sc_dres); 476 bus_release_resource(dev, SYS_RES_IOPORT, 477 rman_get_rid(lesc->sc_rres), lesc->sc_rres); 478 LE_LOCK_DESTROY(sc); 479 480 return (0); 481 } 482 483 static int 484 le_isa_suspend(device_t dev) 485 { 486 struct le_isa_softc *lesc; 487 488 lesc = device_get_softc(dev); 489 490 lance_suspend(&lesc->sc_am7990.lsc); 491 492 return (0); 493 } 494 495 static int 496 le_isa_resume(device_t dev) 497 { 498 struct le_isa_softc *lesc; 499 500 lesc = device_get_softc(dev); 501 502 lance_resume(&lesc->sc_am7990.lsc); 503 504 return (0); 505 }
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