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 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /*- 34 * Copyright (c) 1992, 1993 35 * The Regents of the University of California. All rights reserved. 36 * 37 * This code is derived from software contributed to Berkeley by 38 * Ralph Campbell and Rick Macklem. 39 * 40 * Redistribution and use in source and binary forms, with or without 41 * modification, are permitted provided that the following conditions 42 * are met: 43 * 1. Redistributions of source code must retain the above copyright 44 * notice, this list of conditions and the following disclaimer. 45 * 2. Redistributions in binary form must reproduce the above copyright 46 * notice, this list of conditions and the following disclaimer in the 47 * documentation and/or other materials provided with the distribution. 48 * 3. Neither the name of the University nor the names of its contributors 49 * may be used to endorse or promote products derived from this software 50 * without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 62 * SUCH DAMAGE. 63 * 64 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 65 */ 66 67 #include <sys/cdefs.h> 68 __FBSDID("$FreeBSD$"); 69 70 #include <sys/param.h> 71 #include <sys/systm.h> 72 #include <sys/bus.h> 73 #include <sys/endian.h> 74 #include <sys/kernel.h> 75 #include <sys/lock.h> 76 #include <sys/module.h> 77 #include <sys/mutex.h> 78 #include <sys/resource.h> 79 #include <sys/rman.h> 80 #include <sys/socket.h> 81 82 #include <net/ethernet.h> 83 #include <net/if.h> 84 #include <net/if_media.h> 85 86 #include <machine/bus.h> 87 #include <machine/resource.h> 88 89 #include <isa/isavar.h> 90 91 #include <dev/le/lancereg.h> 92 #include <dev/le/lancevar.h> 93 #include <dev/le/am7990var.h> 94 95 #define LE_ISA_MEMSIZE (16*1024) 96 #define PCNET_RDP 0x10 97 #define PCNET_RAP 0x12 98 99 struct le_isa_softc { 100 struct am7990_softc sc_am7990; /* glue to MI code */ 101 102 bus_size_t sc_rap; /* offsets to LANCE... */ 103 bus_size_t sc_rdp; /* ...registers */ 104 105 struct resource *sc_rres; 106 107 struct resource *sc_dres; 108 109 struct resource *sc_ires; 110 void *sc_ih; 111 112 bus_dma_tag_t sc_pdmat; 113 bus_dma_tag_t sc_dmat; 114 bus_dmamap_t sc_dmam; 115 }; 116 117 static device_probe_t le_isa_probe; 118 static device_attach_t le_isa_attach; 119 static device_detach_t le_isa_detach; 120 static device_resume_t le_isa_resume; 121 static device_suspend_t le_isa_suspend; 122 123 static device_method_t le_isa_methods[] = { 124 /* Device interface */ 125 DEVMETHOD(device_probe, le_isa_probe), 126 DEVMETHOD(device_attach, le_isa_attach), 127 DEVMETHOD(device_detach, le_isa_detach), 128 /* We can just use the suspend method here. */ 129 DEVMETHOD(device_shutdown, le_isa_suspend), 130 DEVMETHOD(device_suspend, le_isa_suspend), 131 DEVMETHOD(device_resume, le_isa_resume), 132 133 { 0, 0 } 134 }; 135 136 DEFINE_CLASS_0(le, le_isa_driver, le_isa_methods, sizeof(struct le_isa_softc)); 137 DRIVER_MODULE(le, isa, le_isa_driver, le_devclass, 0, 0); 138 MODULE_DEPEND(le, ether, 1, 1, 1); 139 140 struct le_isa_param { 141 const char *name; 142 u_long iosize; 143 bus_size_t rap; 144 bus_size_t rdp; 145 bus_size_t macstart; 146 int macstride; 147 } static const le_isa_params[] = { 148 { "BICC Isolan", 24, 0xe, 0xc, 0, 2 }, 149 { "Novell NE2100", 16, 0x12, 0x10, 0, 1 } 150 }; 151 152 static struct isa_pnp_id le_isa_ids[] = { 153 { 0x0322690e, "Cabletron E2200 Single Chip" }, /* CSI2203 */ 154 { 0x0110490a, "Boca LANCard Combo" }, /* BRI1001 */ 155 { 0x0100a60a, "Melco Inc. LGY-IV" }, /* BUF0001 */ 156 { 0xd880d041, "Novell NE2100" }, /* PNP80D8 */ 157 { 0x0082d041, "Cabletron E2100 Series DNI" }, /* PNP8200 */ 158 { 0x3182d041, "AMD AM1500T/AM2100" }, /* PNP8231 */ 159 { 0x8c82d041, "AMD PCnet-ISA" }, /* PNP828C */ 160 { 0x8d82d041, "AMD PCnet-32" }, /* PNP828D */ 161 { 0xcefaedfe, "Racal InterLan EtherBlaster" }, /* _WMFACE */ 162 { 0, NULL } 163 }; 164 165 static void le_isa_wrcsr(struct lance_softc *, uint16_t, uint16_t); 166 static uint16_t le_isa_rdcsr(struct lance_softc *, uint16_t); 167 static bus_dmamap_callback_t le_isa_dma_callback; 168 static int le_isa_probe_legacy(device_t, const struct le_isa_param *); 169 170 static void 171 le_isa_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val) 172 { 173 struct le_isa_softc *lesc = (struct le_isa_softc *)sc; 174 175 bus_write_2(lesc->sc_rres, lesc->sc_rap, port); 176 bus_barrier(lesc->sc_rres, lesc->sc_rap, 2, BUS_SPACE_BARRIER_WRITE); 177 bus_write_2(lesc->sc_rres, lesc->sc_rdp, val); 178 } 179 180 static uint16_t 181 le_isa_rdcsr(struct lance_softc *sc, uint16_t port) 182 { 183 struct le_isa_softc *lesc = (struct le_isa_softc *)sc; 184 185 bus_write_2(lesc->sc_rres, lesc->sc_rap, port); 186 bus_barrier(lesc->sc_rres, lesc->sc_rap, 2, BUS_SPACE_BARRIER_WRITE); 187 return (bus_read_2(lesc->sc_rres, lesc->sc_rdp)); 188 } 189 190 static void 191 le_isa_dma_callback(void *xsc, bus_dma_segment_t *segs, int nsegs, int error) 192 { 193 struct lance_softc *sc = (struct lance_softc *)xsc; 194 195 if (error != 0) 196 return; 197 KASSERT(nsegs == 1, ("%s: bad DMA segment count", __func__)); 198 sc->sc_addr = segs[0].ds_addr; 199 } 200 201 static int 202 le_isa_probe_legacy(device_t dev, const struct le_isa_param *leip) 203 { 204 struct le_isa_softc *lesc; 205 struct lance_softc *sc; 206 int error, i; 207 208 lesc = device_get_softc(dev); 209 sc = &lesc->sc_am7990.lsc; 210 211 i = 0; 212 lesc->sc_rres = bus_alloc_resource(dev, SYS_RES_IOPORT, &i, 0, ~0, 213 leip->iosize, RF_ACTIVE); 214 if (lesc->sc_rres == NULL) 215 return (ENXIO); 216 lesc->sc_rap = leip->rap; 217 lesc->sc_rdp = leip->rdp; 218 219 /* Stop the chip and put it in a known state. */ 220 le_isa_wrcsr(sc, LE_CSR0, LE_C0_STOP); 221 DELAY(100); 222 if (le_isa_rdcsr(sc, LE_CSR0) != LE_C0_STOP) { 223 error = ENXIO; 224 goto fail; 225 } 226 le_isa_wrcsr(sc, LE_CSR3, 0); 227 error = 0; 228 229 fail: 230 bus_release_resource(dev, SYS_RES_IOPORT, 231 rman_get_rid(lesc->sc_rres), lesc->sc_rres); 232 return (error); 233 } 234 235 static int 236 le_isa_probe(device_t dev) 237 { 238 int i; 239 240 switch (ISA_PNP_PROBE(device_get_parent(dev), dev, le_isa_ids)) { 241 case 0: 242 return (BUS_PROBE_DEFAULT); 243 case ENOENT: 244 for (i = 0; i < sizeof(le_isa_params) / 245 sizeof(le_isa_params[0]); i++) { 246 if (le_isa_probe_legacy(dev, &le_isa_params[i]) == 0) { 247 device_set_desc(dev, le_isa_params[i].name); 248 return (BUS_PROBE_DEFAULT); 249 } 250 } 251 /* FALLTHROUGH */ 252 case ENXIO: 253 default: 254 return (ENXIO); 255 } 256 } 257 258 static int 259 le_isa_attach(device_t dev) 260 { 261 struct le_isa_softc *lesc; 262 struct lance_softc *sc; 263 bus_size_t macstart, rap, rdp; 264 int error, i, j, macstride; 265 266 lesc = device_get_softc(dev); 267 sc = &lesc->sc_am7990.lsc; 268 269 LE_LOCK_INIT(sc, device_get_nameunit(dev)); 270 271 j = 0; 272 switch (ISA_PNP_PROBE(device_get_parent(dev), dev, le_isa_ids)) { 273 case 0: 274 lesc->sc_rres = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 275 &j, RF_ACTIVE); 276 rap = PCNET_RAP; 277 rdp = PCNET_RDP; 278 macstart = 0; 279 macstride = 1; 280 break; 281 case ENOENT: 282 for (i = 0; i < sizeof(le_isa_params) / 283 sizeof(le_isa_params[0]); i++) { 284 if (le_isa_probe_legacy(dev, &le_isa_params[i]) == 0) { 285 lesc->sc_rres = bus_alloc_resource(dev, 286 SYS_RES_IOPORT, &j, 0, ~0, 287 le_isa_params[i].iosize, RF_ACTIVE); 288 rap = le_isa_params[i].rap; 289 rdp = le_isa_params[i].rdp; 290 macstart = le_isa_params[i].macstart; 291 macstride = le_isa_params[i].macstride; 292 goto found; 293 } 294 } 295 /* FALLTHROUGH */ 296 case ENXIO: 297 default: 298 device_printf(dev, "cannot determine chip\n"); 299 error = ENXIO; 300 goto fail_mtx; 301 } 302 303 found: 304 if (lesc->sc_rres == NULL) { 305 device_printf(dev, "cannot allocate registers\n"); 306 error = ENXIO; 307 goto fail_mtx; 308 } 309 lesc->sc_rap = rap; 310 lesc->sc_rdp = rdp; 311 312 i = 0; 313 if ((lesc->sc_dres = bus_alloc_resource_any(dev, SYS_RES_DRQ, 314 &i, RF_ACTIVE)) == NULL) { 315 device_printf(dev, "cannot allocate DMA channel\n"); 316 error = ENXIO; 317 goto fail_rres; 318 } 319 320 i = 0; 321 if ((lesc->sc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, 322 &i, RF_SHAREABLE | RF_ACTIVE)) == NULL) { 323 device_printf(dev, "cannot allocate interrupt\n"); 324 error = ENXIO; 325 goto fail_dres; 326 } 327 328 error = bus_dma_tag_create( 329 bus_get_dma_tag(dev), /* parent */ 330 1, 0, /* alignment, boundary */ 331 BUS_SPACE_MAXADDR_24BIT, /* lowaddr */ 332 BUS_SPACE_MAXADDR, /* highaddr */ 333 NULL, NULL, /* filter, filterarg */ 334 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 335 0, /* nsegments */ 336 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 337 0, /* flags */ 338 NULL, NULL, /* lockfunc, lockarg */ 339 &lesc->sc_pdmat); 340 if (error != 0) { 341 device_printf(dev, "cannot allocate parent DMA tag\n"); 342 goto fail_ires; 343 } 344 345 sc->sc_memsize = LE_ISA_MEMSIZE; 346 /* 347 * For Am79C90, Am79C961 and Am79C961A the init block must be 2-byte 348 * aligned and the ring descriptors must be 8-byte aligned. 349 */ 350 error = bus_dma_tag_create( 351 lesc->sc_pdmat, /* parent */ 352 8, 0, /* alignment, boundary */ 353 BUS_SPACE_MAXADDR_24BIT, /* lowaddr */ 354 BUS_SPACE_MAXADDR, /* highaddr */ 355 NULL, NULL, /* filter, filterarg */ 356 sc->sc_memsize, /* maxsize */ 357 1, /* nsegments */ 358 sc->sc_memsize, /* maxsegsize */ 359 0, /* flags */ 360 NULL, NULL, /* lockfunc, lockarg */ 361 &lesc->sc_dmat); 362 if (error != 0) { 363 device_printf(dev, "cannot allocate buffer DMA tag\n"); 364 goto fail_pdtag; 365 } 366 367 error = bus_dmamem_alloc(lesc->sc_dmat, (void **)&sc->sc_mem, 368 BUS_DMA_WAITOK | BUS_DMA_COHERENT, &lesc->sc_dmam); 369 if (error != 0) { 370 device_printf(dev, "cannot allocate DMA buffer memory\n"); 371 goto fail_dtag; 372 } 373 374 sc->sc_addr = 0; 375 error = bus_dmamap_load(lesc->sc_dmat, lesc->sc_dmam, sc->sc_mem, 376 sc->sc_memsize, le_isa_dma_callback, sc, 0); 377 if (error != 0 || sc->sc_addr == 0) { 378 device_printf(dev, "cannot load DMA buffer map\n"); 379 goto fail_dmem; 380 } 381 382 isa_dmacascade(rman_get_start(lesc->sc_dres)); 383 384 sc->sc_flags = 0; 385 sc->sc_conf3 = 0; 386 387 /* 388 * Extract the physical MAC address from the ROM. 389 */ 390 for (i = 0; i < sizeof(sc->sc_enaddr); i++) 391 sc->sc_enaddr[i] = bus_read_1(lesc->sc_rres, 392 macstart + i * macstride); 393 394 sc->sc_copytodesc = lance_copytobuf_contig; 395 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 396 sc->sc_copytobuf = lance_copytobuf_contig; 397 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 398 sc->sc_zerobuf = lance_zerobuf_contig; 399 400 sc->sc_rdcsr = le_isa_rdcsr; 401 sc->sc_wrcsr = le_isa_wrcsr; 402 sc->sc_hwreset = NULL; 403 sc->sc_hwinit = NULL; 404 sc->sc_hwintr = NULL; 405 sc->sc_nocarrier = NULL; 406 sc->sc_mediachange = NULL; 407 sc->sc_mediastatus = NULL; 408 sc->sc_supmedia = NULL; 409 410 error = am7990_config(&lesc->sc_am7990, device_get_name(dev), 411 device_get_unit(dev)); 412 if (error != 0) { 413 device_printf(dev, "cannot attach Am7990\n"); 414 goto fail_dmap; 415 } 416 417 error = bus_setup_intr(dev, lesc->sc_ires, INTR_TYPE_NET | INTR_MPSAFE, 418 NULL, am7990_intr, sc, &lesc->sc_ih); 419 if (error != 0) { 420 device_printf(dev, "cannot set up interrupt\n"); 421 goto fail_am7990; 422 } 423 424 return (0); 425 426 fail_am7990: 427 am7990_detach(&lesc->sc_am7990); 428 fail_dmap: 429 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam); 430 fail_dmem: 431 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam); 432 fail_dtag: 433 bus_dma_tag_destroy(lesc->sc_dmat); 434 fail_pdtag: 435 bus_dma_tag_destroy(lesc->sc_pdmat); 436 fail_ires: 437 bus_release_resource(dev, SYS_RES_IRQ, 438 rman_get_rid(lesc->sc_ires), lesc->sc_ires); 439 fail_dres: 440 bus_release_resource(dev, SYS_RES_DRQ, 441 rman_get_rid(lesc->sc_dres), lesc->sc_dres); 442 fail_rres: 443 bus_release_resource(dev, SYS_RES_IOPORT, 444 rman_get_rid(lesc->sc_rres), lesc->sc_rres); 445 fail_mtx: 446 LE_LOCK_DESTROY(sc); 447 return (error); 448 } 449 450 static int 451 le_isa_detach(device_t dev) 452 { 453 struct le_isa_softc *lesc; 454 struct lance_softc *sc; 455 456 lesc = device_get_softc(dev); 457 sc = &lesc->sc_am7990.lsc; 458 459 bus_teardown_intr(dev, lesc->sc_ires, lesc->sc_ih); 460 am7990_detach(&lesc->sc_am7990); 461 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam); 462 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam); 463 bus_dma_tag_destroy(lesc->sc_dmat); 464 bus_dma_tag_destroy(lesc->sc_pdmat); 465 bus_release_resource(dev, SYS_RES_IRQ, 466 rman_get_rid(lesc->sc_ires), lesc->sc_ires); 467 bus_release_resource(dev, SYS_RES_DRQ, 468 rman_get_rid(lesc->sc_dres), lesc->sc_dres); 469 bus_release_resource(dev, SYS_RES_IOPORT, 470 rman_get_rid(lesc->sc_rres), lesc->sc_rres); 471 LE_LOCK_DESTROY(sc); 472 473 return (0); 474 } 475 476 static int 477 le_isa_suspend(device_t dev) 478 { 479 struct le_isa_softc *lesc; 480 481 lesc = device_get_softc(dev); 482 483 lance_suspend(&lesc->sc_am7990.lsc); 484 485 return (0); 486 } 487 488 static int 489 le_isa_resume(device_t dev) 490 { 491 struct le_isa_softc *lesc; 492 493 lesc = device_get_softc(dev); 494 495 lance_resume(&lesc->sc_am7990.lsc); 496 497 return (0); 498 }
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