1 /* $OpenBSD: if_we.c,v 1.21 2011/06/20 01:09:25 matthew Exp $ */ 2 /* $NetBSD: if_we.c,v 1.11 1998/07/05 06:49:14 jonathan Exp $ */ 3 4 /*- 5 * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 10 * NASA Ames Research Center. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /* 35 * Device driver for National Semiconductor DS8390/WD83C690 based ethernet 36 * adapters. 37 * 38 * Copyright (c) 1994, 1995 Charles M. Hannum. All rights reserved. 39 * 40 * Copyright (C) 1993, David Greenman. This software may be used, modified, 41 * copied, distributed, and sold, in both source and binary form provided that 42 * the above copyright and these terms are retained. Under no circumstances is 43 * the author responsible for the proper functioning of this software, nor does 44 * the author assume any responsibility for damages incurred with its use. 45 */ 46 47 /* 48 * Device driver for the Western Digital/SMC 8003 and 8013 series, 49 * and the SMC Elite Ultra (8216). 50 */ 51 52 #include "bpfilter.h" 53 #include "we.h" 54 55 #include <sys/param.h> 56 #include <sys/systm.h> 57 #include <sys/device.h> 58 #include <sys/socket.h> 59 #include <sys/mbuf.h> 60 #include <sys/syslog.h> 61 62 #include <net/if.h> 63 #include <net/if_dl.h> 64 #include <net/if_types.h> 65 #include <net/if_media.h> 66 67 #ifdef INET 68 #include <netinet/in.h> 69 #include <netinet/in_systm.h> 70 #include <netinet/in_var.h> 71 #include <netinet/ip.h> 72 #include <netinet/if_ether.h> 73 #endif 74 75 #if NBPFILTER > 0 76 #include <net/bpf.h> 77 #endif 78 79 #include <machine/bus.h> 80 #include <machine/intr.h> 81 82 #include <dev/isa/isareg.h> 83 #include <dev/isa/isavar.h> 84 85 #include <dev/ic/dp8390reg.h> 86 #include <dev/ic/dp8390var.h> 87 88 #include <dev/isa/if_wereg.h> 89 90 #ifndef __BUS_SPACE_HAS_STREAM_METHODS 91 #define bus_space_read_region_stream_2 bus_space_read_region_2 92 #define bus_space_write_stream_2 bus_space_write_2 93 #define bus_space_write_region_stream_2 bus_space_write_region_2 94 #endif 95 96 struct we_softc { 97 struct dp8390_softc sc_dp8390; 98 99 bus_space_tag_t sc_asict; /* space tag for ASIC */ 100 bus_space_handle_t sc_asich; /* space handle for ASIC */ 101 102 u_int8_t sc_laar_proto; 103 u_int8_t sc_msr_proto; 104 105 u_int8_t sc_type; /* our type */ 106 107 int sc_16bitp; /* are we 16 bit? */ 108 109 void *sc_ih; /* interrupt handle */ 110 }; 111 112 int we_probe(struct device *, void *, void *); 113 int we_match(struct device *, void *, void *); 114 void we_attach(struct device *, struct device *, void *); 115 116 struct cfattach we_isa_ca = { 117 sizeof(struct we_softc), we_probe, we_attach 118 }; 119 120 #if NWE_ISAPNP 121 struct cfattach we_isapnp_ca = { 122 sizeof(struct we_softc), we_match, we_attach 123 }; 124 #endif /* NWE_ISAPNP */ 125 126 struct cfdriver we_cd = { 127 NULL, "we", DV_IFNET 128 }; 129 130 const char *we_params(bus_space_tag_t, bus_space_handle_t, u_int8_t *, 131 bus_size_t *, int *, int *); 132 133 void we_media_init(struct dp8390_softc *); 134 135 int we_mediachange(struct dp8390_softc *); 136 void we_mediastatus(struct dp8390_softc *, struct ifmediareq *); 137 138 void we_recv_int(struct dp8390_softc *); 139 int we_write_mbuf(struct dp8390_softc *, struct mbuf *, int); 140 int we_ring_copy(struct dp8390_softc *, int, caddr_t, u_short); 141 void we_read_hdr(struct dp8390_softc *, int, struct dp8390_ring *); 142 int we_test_mem(struct dp8390_softc *); 143 144 __inline void we_readmem(struct we_softc *, int, u_int8_t *, int); 145 146 static const int we_584_irq[] = { 147 9, 3, 5, 7, 10, 11, 15, 4, 148 }; 149 #define NWE_584_IRQ (sizeof(we_584_irq) / sizeof(we_584_irq[0])) 150 151 static const int we_790_irq[] = { 152 IRQUNK, 9, 3, 5, 7, 10, 11, 15, 153 }; 154 #define NWE_790_IRQ (sizeof(we_790_irq) / sizeof(we_790_irq[0])) 155 156 /* 157 * Delay needed when switching 16-bit access to shared memory. 158 */ 159 #define WE_DELAY(wsc) delay(3) 160 161 /* 162 * Enable card RAM, and 16-bit access. 163 */ 164 #define WE_MEM_ENABLE(wsc) \ 165 do { \ 166 if ((wsc)->sc_16bitp) \ 167 bus_space_write_1((wsc)->sc_asict, (wsc)->sc_asich, \ 168 WE_LAAR, (wsc)->sc_laar_proto | WE_LAAR_M16EN); \ 169 bus_space_write_1((wsc)->sc_asict, (wsc)->sc_asich, \ 170 WE_MSR, wsc->sc_msr_proto | WE_MSR_MENB); \ 171 WE_DELAY((wsc)); \ 172 } while (0) 173 174 /* 175 * Disable card RAM, and 16-bit access. 176 */ 177 #define WE_MEM_DISABLE(wsc) \ 178 do { \ 179 bus_space_write_1((wsc)->sc_asict, (wsc)->sc_asich, \ 180 WE_MSR, (wsc)->sc_msr_proto); \ 181 if ((wsc)->sc_16bitp) \ 182 bus_space_write_1((wsc)->sc_asict, (wsc)->sc_asich, \ 183 WE_LAAR, (wsc)->sc_laar_proto); \ 184 WE_DELAY((wsc)); \ 185 } while (0) 186 187 int 188 we_probe(struct device *parent, void *match, void *aux) 189 { 190 struct cfdata *cf = ((struct device *)match)->dv_cfdata; 191 192 return (we_match(parent, cf, aux)); 193 } 194 195 int 196 we_match(struct device *parent, void *match, void *aux) 197 { 198 struct isa_attach_args *ia = aux; 199 struct cfdata *cf = match; 200 bus_space_tag_t asict, memt; 201 bus_space_handle_t asich, memh; 202 bus_size_t memsize; 203 int asich_valid, memh_valid; 204 int i, is790, rv = 0; 205 u_int8_t x, type; 206 207 asict = ia->ia_iot; 208 memt = ia->ia_memt; 209 210 asich_valid = memh_valid = 0; 211 212 /* Disallow wildcarded i/o addresses. */ 213 if (ia->ia_iobase == -1 /* ISACF_PORT_DEFAULT */) 214 return (0); 215 216 /* Disallow wildcarded mem address. */ 217 if (ia->ia_maddr == -1 /* ISACF_IOMEM_DEFAULT */) 218 return (0); 219 220 /* Attempt to map the device. */ 221 if (!strcmp(parent->dv_cfdata->cf_driver->cd_name, "isapnp") && ia->ia_ioh) 222 asich = ia->ia_ioh; 223 else { 224 if (bus_space_map(asict, ia->ia_iobase, WE_NPORTS, 0, &asich)) 225 goto out; 226 asich_valid = 1; 227 } 228 229 #ifdef TOSH_ETHER 230 bus_space_write_1(asict, asich, WE_MSR, WE_MSR_POW); 231 #endif 232 233 /* 234 * Attempt to do a checksum over the station address PROM. 235 * If it fails, it's probably not a WD/SMC board. There is 236 * a problem with this, though. Some clone WD8003E boards 237 * (e.g. Danpex) won't pass the checksum. In this case, 238 * the checksum byte always seems to be 0. 239 */ 240 for (x = 0, i = 0; i < 8; i++) 241 x += bus_space_read_1(asict, asich, WE_PROM + i); 242 243 if (x != WE_ROM_CHECKSUM_TOTAL) { 244 /* Make sure it's an 8003E clone... */ 245 if (bus_space_read_1(asict, asich, WE_CARD_ID) != 246 WE_TYPE_WD8003E) 247 goto out; 248 249 /* Check the checksum byte. */ 250 if (bus_space_read_1(asict, asich, WE_PROM + 7) != 0) 251 goto out; 252 } 253 254 /* 255 * Reset the card to force it into a known state. 256 */ 257 #ifdef TOSH_ETHER 258 bus_space_write_1(asict, asich, WE_MSR, WE_MSR_RST | WE_MSR_POW); 259 #else 260 bus_space_write_1(asict, asich, WE_MSR, WE_MSR_RST); 261 #endif 262 delay(100); 263 264 bus_space_write_1(asict, asich, WE_MSR, 265 bus_space_read_1(asict, asich, WE_MSR) & ~WE_MSR_RST); 266 267 /* Wait in case the card is reading its EEPROM. */ 268 delay(5000); 269 270 /* 271 * Get parameters. 272 */ 273 if (we_params(asict, asich, &type, &memsize, NULL, &is790) == NULL) 274 goto out; 275 276 /* Allow user to override probed value. */ 277 if (ia->ia_msize) 278 memsize = ia->ia_msize; 279 280 /* Attempt to map the memory space. */ 281 if (!strcmp(parent->dv_cfdata->cf_driver->cd_name, "isapnp") && ia->ia_memh) 282 memh = ia->ia_memh; 283 else { 284 if (bus_space_map(memt, ia->ia_maddr, memsize, 0, &memh)) 285 goto out; 286 memh_valid = 1; 287 } 288 289 /* 290 * If possible, get the assigned interrupt number from the card 291 * and use it. 292 */ 293 if (is790) { 294 u_int8_t hwr; 295 296 /* Assemble together the encoded interrupt number. */ 297 hwr = bus_space_read_1(asict, asich, WE790_HWR); 298 bus_space_write_1(asict, asich, WE790_HWR, 299 hwr | WE790_HWR_SWH); 300 301 x = bus_space_read_1(asict, asich, WE790_GCR); 302 i = ((x & WE790_GCR_IR2) >> 4) | 303 ((x & (WE790_GCR_IR1|WE790_GCR_IR0)) >> 2); 304 bus_space_write_1(asict, asich, WE790_HWR, 305 hwr & ~WE790_HWR_SWH); 306 307 if (ia->ia_irq != IRQUNK && ia->ia_irq != we_790_irq[i]) 308 printf("%s%d: changing IRQ %d to %d\n", 309 we_cd.cd_name, cf->cf_unit, ia->ia_irq, 310 we_790_irq[i]); 311 ia->ia_irq = we_790_irq[i]; 312 } else if (type & WE_SOFTCONFIG) { 313 /* Assemble together the encoded interrupt number. */ 314 i = (bus_space_read_1(asict, asich, WE_ICR) & WE_ICR_IR2) | 315 ((bus_space_read_1(asict, asich, WE_IRR) & 316 (WE_IRR_IR0 | WE_IRR_IR1)) >> 5); 317 318 if (ia->ia_irq != IRQUNK && ia->ia_irq != we_584_irq[i]) 319 printf("%s%d: changing IRQ %d to %d\n", 320 we_cd.cd_name, cf->cf_unit, ia->ia_irq, 321 we_584_irq[i]); 322 ia->ia_irq = we_584_irq[i]; 323 } 324 325 /* So, we say we've found it! */ 326 ia->ia_iosize = WE_NPORTS; 327 ia->ia_msize = memsize; 328 rv = 1; 329 330 out: 331 if (asich_valid) 332 bus_space_unmap(asict, asich, WE_NPORTS); 333 if (memh_valid) 334 bus_space_unmap(memt, memh, memsize); 335 return (rv); 336 } 337 338 void 339 we_attach(struct device *parent, struct device *self, void *aux) 340 { 341 struct we_softc *wsc = (struct we_softc *)self; 342 struct dp8390_softc *sc = &wsc->sc_dp8390; 343 struct isa_attach_args *ia = aux; 344 bus_space_tag_t nict, asict, memt; 345 bus_space_handle_t nich, asich, memh; 346 const char *typestr; 347 u_int8_t x; 348 int i; 349 350 printf("\n"); 351 352 nict = asict = ia->ia_iot; 353 memt = ia->ia_memt; 354 355 /* Map the device. */ 356 if (!strcmp(parent->dv_cfdata->cf_driver->cd_name, "isapnp") && ia->ia_ioh) 357 asich = ia->ia_ioh; 358 else if (bus_space_map(asict, ia->ia_iobase, WE_NPORTS, 0, &asich)) { 359 printf("%s: can't map nic i/o space\n", 360 sc->sc_dev.dv_xname); 361 return; 362 } 363 364 if (bus_space_subregion(asict, asich, WE_NIC_OFFSET, WE_NIC_NPORTS, 365 &nich)) { 366 printf("%s: can't subregion i/o space\n", 367 sc->sc_dev.dv_xname); 368 return; 369 } 370 371 typestr = we_params(asict, asich, &wsc->sc_type, NULL, 372 &wsc->sc_16bitp, &sc->is790); 373 if (typestr == NULL) { 374 printf("%s: where did the card go?\n", 375 sc->sc_dev.dv_xname); 376 return; 377 } 378 379 /* 380 * Map memory space. Note we use the size that might have 381 * been overridden by the user. 382 */ 383 if (!strcmp(parent->dv_cfdata->cf_driver->cd_name, "isapnp") && ia->ia_memh) 384 memh = ia->ia_memh; 385 else if (bus_space_map(memt, ia->ia_maddr, ia->ia_msize, 0, &memh)) { 386 printf("%s: can't map shared memory\n", 387 sc->sc_dev.dv_xname); 388 return; 389 } 390 391 /* 392 * Allow user to override 16-bit mode. 8-bit takes precedence. 393 */ 394 if (self->dv_cfdata->cf_flags & WE_FLAGS_FORCE_16BIT_MODE) 395 wsc->sc_16bitp = 1; 396 if (self->dv_cfdata->cf_flags & WE_FLAGS_FORCE_8BIT_MODE) 397 wsc->sc_16bitp = 0; 398 399 wsc->sc_asict = asict; 400 wsc->sc_asich = asich; 401 402 sc->sc_regt = nict; 403 sc->sc_regh = nich; 404 405 sc->sc_buft = memt; 406 sc->sc_bufh = memh; 407 408 /* Interface is always enabled. */ 409 sc->sc_enabled = 1; 410 411 /* Registers are linear. */ 412 for (i = 0; i < 16; i++) 413 sc->sc_reg_map[i] = i; 414 415 /* Now we can use the NIC_{GET,PUT}() macros. */ 416 417 printf("%s: %s (%s-bit)", sc->sc_dev.dv_xname, typestr, 418 wsc->sc_16bitp ? "16" : "8"); 419 420 /* Get station address from EEPROM. */ 421 for (i = 0; i < ETHER_ADDR_LEN; i++) 422 sc->sc_arpcom.ac_enaddr[i] = 423 bus_space_read_1(asict, asich, WE_PROM + i); 424 425 /* 426 * Set upper address bits and 8/16 bit access to shared memory. 427 */ 428 if (sc->is790) { 429 wsc->sc_laar_proto = 430 bus_space_read_1(asict, asich, WE_LAAR) & 431 ~WE_LAAR_M16EN; 432 bus_space_write_1(asict, asich, WE_LAAR, 433 wsc->sc_laar_proto | (wsc->sc_16bitp ? WE_LAAR_M16EN : 0)); 434 } else if ((wsc->sc_type & WE_SOFTCONFIG) || 435 #ifdef TOSH_ETHER 436 (wsc->sc_type == WE_TYPE_TOSHIBA1) || 437 (wsc->sc_type == WE_TYPE_TOSHIBA4) || 438 #endif 439 (wsc->sc_type == WE_TYPE_WD8013EBT)) { 440 wsc->sc_laar_proto = (ia->ia_maddr >> 19) & WE_LAAR_ADDRHI; 441 if (wsc->sc_16bitp) 442 wsc->sc_laar_proto |= WE_LAAR_L16EN; 443 bus_space_write_1(asict, asich, WE_LAAR, 444 wsc->sc_laar_proto | (wsc->sc_16bitp ? WE_LAAR_M16EN : 0)); 445 } 446 447 /* 448 * Set address and enable interface shared memory. 449 */ 450 if (sc->is790) { 451 /* XXX MAGIC CONSTANTS XXX */ 452 x = bus_space_read_1(asict, asich, 0x04); 453 bus_space_write_1(asict, asich, 0x04, x | 0x80); 454 bus_space_write_1(asict, asich, 0x0b, 455 ((ia->ia_maddr >> 13) & 0x0f) | 456 ((ia->ia_maddr >> 11) & 0x40) | 457 (bus_space_read_1(asict, asich, 0x0b) & 0xb0)); 458 bus_space_write_1(asict, asich, 0x04, x); 459 wsc->sc_msr_proto = 0x00; 460 sc->cr_proto = 0x00; 461 } else { 462 #ifdef TOSH_ETHER 463 if (wsc->sc_type == WE_TYPE_TOSHIBA1 || 464 wsc->sc_type == WE_TYPE_TOSHIBA4) { 465 bus_space_write_1(asict, asich, WE_MSR + 1, 466 ((ia->ia_maddr >> 8) & 0xe0) | 0x04); 467 bus_space_write_1(asict, asich, WE_MSR + 2, 468 ((ia->ia_maddr >> 16) & 0x0f)); 469 wsc->sc_msr_proto = WE_MSR_POW; 470 } else 471 #endif 472 wsc->sc_msr_proto = (ia->ia_maddr >> 13) & 473 WE_MSR_ADDR; 474 475 sc->cr_proto = ED_CR_RD2; 476 } 477 478 bus_space_write_1(asict, asich, WE_MSR, 479 wsc->sc_msr_proto | WE_MSR_MENB); 480 WE_DELAY(wsc); 481 482 /* 483 * DCR gets: 484 * 485 * FIFO threshold to 8, No auto-init Remote DMA, 486 * byte order=80x86. 487 * 488 * 16-bit cards also get word-wide DMA transfers. 489 */ 490 sc->dcr_reg = ED_DCR_FT1 | ED_DCR_LS | 491 (wsc->sc_16bitp ? ED_DCR_WTS : 0); 492 493 sc->test_mem = we_test_mem; 494 sc->ring_copy = we_ring_copy; 495 sc->write_mbuf = we_write_mbuf; 496 sc->read_hdr = we_read_hdr; 497 sc->recv_int = we_recv_int; 498 499 sc->sc_mediachange = we_mediachange; 500 sc->sc_mediastatus = we_mediastatus; 501 502 sc->mem_start = 0; 503 sc->mem_size = ia->ia_msize; 504 505 sc->sc_flags = self->dv_cfdata->cf_flags; 506 507 /* Do generic parts of attach. */ 508 if (wsc->sc_type & WE_SOFTCONFIG) 509 sc->sc_media_init = we_media_init; 510 else 511 sc->sc_media_init = dp8390_media_init; 512 if (dp8390_config(sc)) { 513 printf(": configuration failed\n"); 514 return; 515 } 516 517 /* 518 * Disable 16-bit access to shared memory - we leave it disabled 519 * so that: 520 * 521 * (1) machines reboot properly when the board is set to 522 * 16-bit mode and there are conflicting 8-bit devices 523 * within the same 128k address space as this board's 524 * shared memory, and 525 * 526 * (2) so that other 8-bit devices with shared memory 527 * in this same 128k address space will work. 528 */ 529 WE_MEM_DISABLE(wsc); 530 531 /* 532 * Enable the configured interrupt. 533 */ 534 if (sc->is790) 535 bus_space_write_1(asict, asich, WE790_ICR, 536 bus_space_read_1(asict, asich, WE790_ICR) | 537 WE790_ICR_EIL); 538 else if (wsc->sc_type & WE_SOFTCONFIG) 539 bus_space_write_1(asict, asich, WE_IRR, 540 bus_space_read_1(asict, asich, WE_IRR) | WE_IRR_IEN); 541 else if (ia->ia_irq == IRQUNK) { 542 printf("%s: can't wildcard IRQ on a %s\n", 543 sc->sc_dev.dv_xname, typestr); 544 return; 545 } 546 547 /* Establish interrupt handler. */ 548 wsc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 549 IPL_NET, dp8390_intr, sc, sc->sc_dev.dv_xname); 550 if (wsc->sc_ih == NULL) 551 printf("%s: can't establish interrupt\n", sc->sc_dev.dv_xname); 552 } 553 554 int 555 we_test_mem(struct dp8390_softc *sc) 556 { 557 struct we_softc *wsc = (struct we_softc *)sc; 558 bus_space_tag_t memt = sc->sc_buft; 559 bus_space_handle_t memh = sc->sc_bufh; 560 bus_size_t memsize = sc->mem_size; 561 int i; 562 563 if (wsc->sc_16bitp) 564 bus_space_set_region_2(memt, memh, 0, 0, memsize >> 1); 565 else 566 bus_space_set_region_1(memt, memh, 0, 0, memsize); 567 568 if (wsc->sc_16bitp) { 569 for (i = 0; i < memsize; i += 2) { 570 if (bus_space_read_2(memt, memh, i) != 0) 571 goto fail; 572 } 573 } else { 574 for (i = 0; i < memsize; i++) { 575 if (bus_space_read_1(memt, memh, i) != 0) 576 goto fail; 577 } 578 } 579 580 return (0); 581 582 fail: 583 printf("%s: failed to clear shared memory at offset 0x%x\n", 584 sc->sc_dev.dv_xname, i); 585 WE_MEM_DISABLE(wsc); 586 return (1); 587 } 588 589 /* 590 * Given a NIC memory source address and a host memory destination address, 591 * copy 'len' from NIC to host using shared memory. The 'len' is rounded 592 * up to a word - ok as long as mbufs are word-sized. 593 */ 594 __inline void 595 we_readmem(struct we_softc *wsc, int from, u_int8_t *to, int len) 596 { 597 bus_space_tag_t memt = wsc->sc_dp8390.sc_buft; 598 bus_space_handle_t memh = wsc->sc_dp8390.sc_bufh; 599 600 if (len & 1) 601 ++len; 602 603 if (wsc->sc_16bitp) 604 bus_space_read_region_stream_2(memt, memh, from, 605 (u_int16_t *)to, len >> 1); 606 else 607 bus_space_read_region_1(memt, memh, from, 608 to, len); 609 } 610 611 int 612 we_write_mbuf(struct dp8390_softc *sc, struct mbuf *m, int buf) 613 { 614 struct we_softc *wsc = (struct we_softc *)sc; 615 bus_space_tag_t memt = wsc->sc_dp8390.sc_buft; 616 bus_space_handle_t memh = wsc->sc_dp8390.sc_bufh; 617 u_int8_t *data, savebyte[2]; 618 int savelen, len, leftover; 619 #ifdef DIAGNOSTIC 620 u_int8_t *lim; 621 #endif 622 623 savelen = m->m_pkthdr.len; 624 625 WE_MEM_ENABLE(wsc); 626 627 /* 628 * 8-bit boards are simple; no alignment tricks are necessary. 629 */ 630 if (wsc->sc_16bitp == 0) { 631 for (; m != NULL; buf += m->m_len, m = m->m_next) 632 bus_space_write_region_1(memt, memh, 633 buf, mtod(m, u_int8_t *), m->m_len); 634 goto out; 635 } 636 637 /* Start out with no leftover data. */ 638 leftover = 0; 639 savebyte[0] = savebyte[1] = 0; 640 641 for (; m != NULL; m = m->m_next) { 642 len = m->m_len; 643 if (len == 0) 644 continue; 645 data = mtod(m, u_int8_t *); 646 #ifdef DIAGNOSTIC 647 lim = data + len; 648 #endif 649 while (len > 0) { 650 if (leftover) { 651 /* 652 * Data left over (from mbuf or realignment). 653 * Buffer the next byte, and write it and 654 * the leftover data out. 655 */ 656 savebyte[1] = *data++; 657 len--; 658 bus_space_write_stream_2(memt, memh, buf, 659 *(u_int16_t *)savebyte); 660 buf += 2; 661 leftover = 0; 662 } else if (ALIGNED_POINTER(data, u_int16_t) == 0) { 663 /* 664 * Unaligned dta; buffer the next byte. 665 */ 666 savebyte[0] = *data++; 667 len--; 668 leftover = 1; 669 } else { 670 /* 671 * Aligned data; output contiguous words as 672 * much as we can, then buffer the remaining 673 * byte, if any. 674 */ 675 leftover = len & 1; 676 len &= ~1; 677 bus_space_write_region_stream_2(memt, memh, 678 buf, (u_int16_t *)data, len >> 1); 679 data += len; 680 buf += len; 681 if (leftover) 682 savebyte[0] = *data++; 683 len = 0; 684 } 685 } 686 if (len < 0) 687 panic("we_write_mbuf: negative len"); 688 #ifdef DIAGNOSTIC 689 if (data != lim) 690 panic("we_write_mbuf: data != lim"); 691 #endif 692 } 693 if (leftover) { 694 savebyte[1] = 0; 695 bus_space_write_stream_2(memt, memh, buf, 696 *(u_int16_t *)savebyte); 697 } 698 699 out: 700 WE_MEM_DISABLE(wsc); 701 702 return (savelen); 703 } 704 705 int 706 we_ring_copy(struct dp8390_softc *sc, int src, caddr_t dst, u_short amount) 707 { 708 struct we_softc *wsc = (struct we_softc *)sc; 709 u_short tmp_amount; 710 711 /* Does copy wrap to lower addr in ring buffer? */ 712 if (src + amount > sc->mem_end) { 713 tmp_amount = sc->mem_end - src; 714 715 /* Copy amount up to end of NIC memory. */ 716 we_readmem(wsc, src, dst, tmp_amount); 717 718 amount -= tmp_amount; 719 src = sc->mem_ring; 720 dst += tmp_amount; 721 } 722 723 we_readmem(wsc, src, dst, amount); 724 725 return (src + amount); 726 } 727 728 void 729 we_read_hdr(struct dp8390_softc *sc, int packet_ptr, 730 struct dp8390_ring *packet_hdrp) 731 { 732 struct we_softc *wsc = (struct we_softc *)sc; 733 734 we_readmem(wsc, packet_ptr, (u_int8_t *)packet_hdrp, 735 sizeof(struct dp8390_ring)); 736 #if BYTE_ORDER == BIG_ENDIAN 737 packet_hdrp->count = swap16(packet_hdrp->count); 738 #endif 739 } 740 741 void 742 we_recv_int(struct dp8390_softc *sc) 743 { 744 struct we_softc *wsc = (struct we_softc *)sc; 745 746 WE_MEM_ENABLE(wsc); 747 dp8390_rint(sc); 748 WE_MEM_DISABLE(wsc); 749 } 750 751 void 752 we_media_init(struct dp8390_softc *sc) 753 { 754 struct we_softc *wsc = (void *)sc; 755 int defmedia = IFM_ETHER; 756 u_int8_t x; 757 758 if (sc->is790) { 759 x = bus_space_read_1(wsc->sc_asict, wsc->sc_asich, WE790_HWR); 760 bus_space_write_1(wsc->sc_asict, wsc->sc_asich, WE790_HWR, 761 x | WE790_HWR_SWH); 762 if (bus_space_read_1(wsc->sc_asict, wsc->sc_asich, WE790_GCR) & 763 WE790_GCR_GPOUT) 764 defmedia |= IFM_10_2; 765 else 766 defmedia |= IFM_10_5; 767 bus_space_write_1(wsc->sc_asict, wsc->sc_asich, WE790_HWR, 768 x &~ WE790_HWR_SWH); 769 } else { 770 x = bus_space_read_1(wsc->sc_asict, wsc->sc_asich, WE_IRR); 771 if (x & WE_IRR_OUT2) 772 defmedia |= IFM_10_2; 773 else 774 defmedia |= IFM_10_5; 775 } 776 777 ifmedia_init(&sc->sc_media, 0, dp8390_mediachange, dp8390_mediastatus); 778 ifmedia_add(&sc->sc_media, IFM_ETHER|IFM_10_2, 0, NULL); 779 ifmedia_add(&sc->sc_media, IFM_ETHER|IFM_10_5, 0, NULL); 780 ifmedia_set(&sc->sc_media, defmedia); 781 } 782 783 int 784 we_mediachange(struct dp8390_softc *sc) 785 { 786 787 /* 788 * Current media is already set up. Just reset the interface 789 * to let the new value take hold. The new media will be 790 * set up in dp8390_init(). 791 */ 792 dp8390_reset(sc); 793 return (0); 794 } 795 796 void 797 we_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr) 798 { 799 struct ifmedia *ifm = &sc->sc_media; 800 801 /* 802 * The currently selected media is always the active media. 803 */ 804 ifmr->ifm_active = ifm->ifm_cur->ifm_media; 805 } 806 807 const char * 808 we_params(bus_space_tag_t asict, bus_space_handle_t asich, 809 u_int8_t *typep, bus_size_t *memsizep, int *is16bitp, 810 int *is790p) 811 { 812 const char *typestr; 813 bus_size_t memsize; 814 int is16bit, is790; 815 u_int8_t type; 816 817 memsize = 8192; 818 is16bit = is790 = 0; 819 820 type = bus_space_read_1(asict, asich, WE_CARD_ID); 821 switch (type) { 822 case WE_TYPE_WD8003S: 823 typestr = "WD8003S"; 824 break; 825 case WE_TYPE_WD8003E: 826 typestr = "WD8003E"; 827 break; 828 case WE_TYPE_WD8003EB: 829 typestr = "WD8003EB"; 830 break; 831 case WE_TYPE_WD8003W: 832 typestr = "WD8003W"; 833 break; 834 case WE_TYPE_WD8013EBT: 835 typestr = "WD8013EBT"; 836 memsize = 16384; 837 is16bit = 1; 838 break; 839 case WE_TYPE_WD8013W: 840 typestr = "WD8013W"; 841 memsize = 16384; 842 is16bit = 1; 843 break; 844 case WE_TYPE_WD8013EP: /* also WD8003EP */ 845 if (bus_space_read_1(asict, asich, WE_ICR) & WE_ICR_16BIT) { 846 is16bit = 1; 847 memsize = 16384; 848 typestr = "WD8013EP"; 849 } else 850 typestr = "WD8003EP"; 851 break; 852 case WE_TYPE_WD8013WC: 853 typestr = "WD8013WC"; 854 memsize = 16384; 855 is16bit = 1; 856 break; 857 case WE_TYPE_WD8013EBP: 858 typestr = "WD8013EBP"; 859 memsize = 16384; 860 is16bit = 1; 861 break; 862 case WE_TYPE_WD8013EPC: 863 typestr = "WD8013EPC"; 864 memsize = 16384; 865 is16bit = 1; 866 break; 867 case WE_TYPE_SMC8216C: 868 case WE_TYPE_SMC8216T: 869 { 870 u_int8_t hwr; 871 872 typestr = (type == WE_TYPE_SMC8216C) ? 873 "SMC8216/SMC8216C" : "SMC8216T"; 874 875 hwr = bus_space_read_1(asict, asich, WE790_HWR); 876 bus_space_write_1(asict, asich, WE790_HWR, 877 hwr | WE790_HWR_SWH); 878 switch (bus_space_read_1(asict, asich, WE790_RAR) & 879 WE790_RAR_SZ64) { 880 case WE790_RAR_SZ64: 881 memsize = 65536; 882 break; 883 case WE790_RAR_SZ32: 884 memsize = 32768; 885 break; 886 case WE790_RAR_SZ16: 887 memsize = 16384; 888 break; 889 case WE790_RAR_SZ8: 890 /* 8216 has 16K shared mem -- 8416 has 8K */ 891 typestr = (type == WE_TYPE_SMC8216C) ? 892 "SMC8416C/SMC8416BT" : "SMC8416T"; 893 memsize = 8192; 894 break; 895 } 896 bus_space_write_1(asict, asich, WE790_HWR, hwr); 897 898 is16bit = 1; 899 is790 = 1; 900 break; 901 } 902 #ifdef TOSH_ETHER 903 case WE_TYPE_TOSHIBA1: 904 typestr = "Toshiba1"; 905 memsize = 32768; 906 is16bit = 1; 907 break; 908 case WE_TYPE_TOSHIBA4: 909 typestr = "Toshiba4"; 910 memsize = 32768; 911 is16bit = 1; 912 break; 913 #endif 914 default: 915 /* Not one we recognize. */ 916 return (NULL); 917 } 918 919 /* 920 * Make some adjustments to initial values depending on what is 921 * found in the ICR. 922 */ 923 if (is16bit && (type != WE_TYPE_WD8013EBT) && 924 #ifdef TOSH_ETHER 925 (type != WE_TYPE_TOSHIBA1 && type != WE_TYPE_TOSHIBA4) && 926 #endif 927 (bus_space_read_1(asict, asich, WE_ICR) & WE_ICR_16BIT) == 0) { 928 is16bit = 0; 929 memsize = 8192; 930 } 931 932 #ifdef WE_DEBUG 933 { 934 int i; 935 936 printf("we_params: type = 0x%x, typestr = %s, is16bit = %d, " 937 "memsize = %d\n", type, typestr, is16bit, memsize); 938 for (i = 0; i < 8; i++) 939 printf(" %d -> 0x%x\n", i, 940 bus_space_read_1(asict, asich, i)); 941 } 942 #endif 943 944 if (typep != NULL) 945 *typep = type; 946 if (memsizep != NULL) 947 *memsizep = memsize; 948 if (is16bitp != NULL) 949 *is16bitp = is16bit; 950 if (is790p != NULL) 951 *is790p = is790; 952 return (typestr); 953 } 954