if_netdock_nubus.c revision 1.22
1 /* $NetBSD: if_netdock_nubus.c,v 1.22 2012/10/27 17:17:59 chs Exp $ */ 2 3 /* 4 * Copyright (C) 2000,2002 Daishi Kato <daishi (at) axlight.com> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Daishi Kato 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * Asante NetDock (for Duo series) driver 35 * the chip inside is not known 36 */ 37 38 /* 39 * The author would like to thank Takeo Kuwata <tkuwata (at) mac.com> for 40 * his help in stabilizing this driver. 41 */ 42 43 /***********************/ 44 45 #include <sys/cdefs.h> 46 __KERNEL_RCSID(0, "$NetBSD: if_netdock_nubus.c,v 1.22 2012/10/27 17:17:59 chs Exp $"); 47 48 #include <sys/param.h> 49 #include <sys/device.h> 50 #include <sys/socket.h> 51 #include <sys/systm.h> 52 #include <sys/mbuf.h> 53 #include <sys/ioctl.h> 54 55 #include <net/if.h> 56 #include <net/if_dl.h> 57 #include <net/if_ether.h> 58 59 #include "opt_inet.h" 60 #ifdef INET 61 #include <netinet/in.h> 62 #include <netinet/if_inarp.h> 63 #endif 64 65 #include <net/bpf.h> 66 67 #include <machine/bus.h> 68 #include <machine/viareg.h> 69 #include <mac68k/nubus/nubus.h> 70 71 /***********************/ 72 73 #define NETDOCK_DEBUG 74 75 #define NETDOCK_NUBUS_CATEGORY 0x0020 76 #define NETDOCK_NUBUS_TYPE 0x0003 77 #define NETDOCK_NUBUS_DRSW 0x0103 78 #define NETDOCK_NUBUS_DRHW 0x0100 79 80 #define ETHERMICRODOCK_NUBUS_CATEGORY 0x0020 81 #define ETHERMICRODOCK_NUBUS_TYPE 0x0003 82 #define ETHERMICRODOCK_NUBUS_DRSW 0x0102 83 #define ETHERMICRODOCK_NUBUS_DRHW 0x0100 84 85 #define REG_ISR 0x000c 86 #define REG_000E 0x000e 87 #define REG_0000 0x0000 88 #define REG_0002 0x0002 89 #define REG_0004 0x0004 90 #define REG_0006 0x0006 91 #define REG_DATA 0x0008 92 #define REG_EFD00 0xefd00 93 94 #define ISR_ALL 0x3300 95 #define ISR_TX 0x0200 96 #define ISR_RX 0x0100 97 #define ISR_READY 0x0800 98 #define ISR_BIT_0C 0x1000 99 #define ISR_BIT_0D 0x2000 100 #define ISR_MASK 0x0033 101 #define ISR_BIT_03 0x0008 102 103 #define REG_0002_BIT_04 0x0010 104 #define REG_0000_BIT_08 0x0100 105 #define REG_0004_BIT_0F 0x8000 106 #define REG_0004_BIT_07 0x0080 107 #define REG_DATA_BIT_02 0x0004 108 #define REG_DATA_BIT_03 0x0008 109 #define REG_DATA_BIT_04 0x0010 110 #define REG_DATA_BIT_05 0x0020 111 #define REG_DATA_BIT_08 0x0100 112 #define REG_DATA_BIT_07 0x0080 113 #define REG_DATA_BIT_0F 0x8000 114 115 /***********************/ 116 117 typedef struct netdock_softc { 118 device_t sc_dev; 119 struct ethercom sc_ethercom; 120 #define sc_if sc_ethercom.ec_if 121 122 bus_space_tag_t sc_regt; 123 bus_space_handle_t sc_regh; 124 125 u_int8_t sc_enaddr[ETHER_ADDR_LEN]; 126 127 } netdock_softc_t; 128 129 /***********************/ 130 131 static int netdock_nubus_match(device_t, cfdata_t, void *); 132 static void netdock_nubus_attach(device_t, device_t, void *); 133 static int netdock_nb_get_enaddr(bus_space_tag_t, bus_space_handle_t, 134 struct nubus_attach_args *, u_int8_t *); 135 #ifdef NETDOCK_DEBUG_DRIVER 136 static void netdock_print_driver(bus_space_tag_t, bus_space_handle_t, 137 struct nubus_attach_args *); 138 #endif 139 140 int netdock_setup(struct netdock_softc *, u_int8_t *); 141 void netdock_intr(void *); 142 143 static void netdock_watchdog(struct ifnet *); 144 static int netdock_init(struct netdock_softc *); 145 static int netdock_stop(struct netdock_softc *); 146 static int netdock_ioctl(struct ifnet *, u_long, void *); 147 static void netdock_start(struct ifnet *); 148 static void netdock_reset(struct netdock_softc *); 149 static void netdock_txint(struct netdock_softc *); 150 static void netdock_rxint(struct netdock_softc *); 151 152 static u_int netdock_put(struct netdock_softc *, struct mbuf *); 153 static int netdock_read(struct netdock_softc *, int); 154 static struct mbuf *netdock_get(struct netdock_softc *, int); 155 156 /***********************/ 157 158 #define NIC_GET_1(sc, o) (bus_space_read_1((sc)->sc_regt, \ 159 (sc)->sc_regh, (o))) 160 #define NIC_PUT_1(sc, o, val) (bus_space_write_1((sc)->sc_regt, \ 161 (sc)->sc_regh, (o), (val))) 162 #define NIC_GET_2(sc, o) (bus_space_read_2((sc)->sc_regt, \ 163 (sc)->sc_regh, (o))) 164 #define NIC_PUT_2(sc, o, val) (bus_space_write_2((sc)->sc_regt, \ 165 (sc)->sc_regh, (o), (val))) 166 #define NIC_GET_4(sc, o) (bus_space_read_4((sc)->sc_regt, \ 167 (sc)->sc_regh, (o))) 168 #define NIC_PUT_4(sc, o, val) (bus_space_write_4((sc)->sc_regt, \ 169 (sc)->sc_regh, (o), (val))) 170 171 #define NIC_BSET(sc, o, b) \ 172 __asm volatile("bset %0,%1" : : "di" ((u_short)(b)), \ 173 "g" (*(u_int8_t *)((sc)->sc_regh.base + (o)))) 174 #define NIC_BCLR(sc, o, b) \ 175 __asm volatile("bclr %0,%1" : : "di" ((u_short)(b)), \ 176 "g" (*(u_int8_t *)((sc)->sc_regh.base + (o)))) 177 #define NIC_ANDW(sc, o, b) \ 178 __asm volatile("andw %0,%1" : : "di" ((u_short)(b)), \ 179 "g" (*(u_int8_t *)((sc)->sc_regh.base + (o)))) 180 #define NIC_ORW(sc, o, b) \ 181 __asm volatile("orw %0,%1" : : "di" ((u_short)(b)), \ 182 "g" (*(u_int8_t *)((sc)->sc_regh.base + (o)))) 183 184 185 /***********************/ 186 187 CFATTACH_DECL_NEW(netdock_nubus, sizeof(struct netdock_softc), 188 netdock_nubus_match, netdock_nubus_attach, NULL, NULL); 189 190 /***********************/ 191 192 static int 193 netdock_nubus_match(device_t parent, cfdata_t cf, void *aux) 194 { 195 struct nubus_attach_args *na = (struct nubus_attach_args *)aux; 196 bus_space_handle_t bsh; 197 int rv; 198 199 if (bus_space_map(na->na_tag, NUBUS_SLOT2PA(na->slot), 200 NBMEMSIZE, 0, &bsh)) 201 return (0); 202 203 rv = 0; 204 205 if (na->category == NETDOCK_NUBUS_CATEGORY && 206 na->type == NETDOCK_NUBUS_TYPE && 207 na->drsw == NETDOCK_NUBUS_DRSW) { 208 /* assuming this IS Asante NetDock */ 209 rv = 1; 210 } 211 212 if (na->category == ETHERMICRODOCK_NUBUS_CATEGORY && 213 na->type == ETHERMICRODOCK_NUBUS_TYPE && 214 na->drsw == ETHERMICRODOCK_NUBUS_DRSW) { 215 /* assuming this IS Newer EtherMicroDock */ 216 rv = 1; 217 } 218 219 bus_space_unmap(na->na_tag, bsh, NBMEMSIZE); 220 221 return rv; 222 } 223 224 static void 225 netdock_nubus_attach(device_t parent, device_t self, void *aux) 226 { 227 struct netdock_softc *sc = device_private(self); 228 struct nubus_attach_args *na = (struct nubus_attach_args *)aux; 229 bus_space_tag_t bst; 230 bus_space_handle_t bsh; 231 u_int8_t enaddr[ETHER_ADDR_LEN]; 232 const char *cardtype; 233 234 bst = na->na_tag; 235 if (bus_space_map(bst, NUBUS_SLOT2PA(na->slot), NBMEMSIZE, 0, &bsh)) { 236 printf(": failed to map memory space.\n"); 237 return; 238 } 239 240 sc->sc_regt = bst; 241 sc->sc_dev = self; 242 cardtype = nubus_get_card_name(bst, bsh, na->fmt); 243 244 #ifdef NETDOCK_DEBUG_DRIVER 245 netdock_print_driver(bst, bsh, na); 246 #endif 247 248 if (netdock_nb_get_enaddr(bst, bsh, na, enaddr)) { 249 printf(": can't find MAC address.\n"); 250 bus_space_unmap(bst, bsh, NBMEMSIZE); 251 return; 252 } 253 254 if (bus_space_subregion(bst, bsh, 0xe00300, 0xf0000, &sc->sc_regh)) { 255 printf(": failed to map register space.\n"); 256 bus_space_unmap(bst, bsh, NBMEMSIZE); 257 return; 258 } 259 260 printf(": %s\n", cardtype); 261 262 if (netdock_setup(sc, enaddr)) { 263 bus_space_unmap(bst, bsh, NBMEMSIZE); 264 return; 265 } 266 267 add_nubus_intr(na->slot, netdock_intr, (void *)sc); 268 269 return; 270 } 271 272 static int 273 netdock_nb_get_enaddr(bus_space_tag_t bst, bus_space_handle_t bsh, 274 struct nubus_attach_args *na, u_int8_t *ep) 275 { 276 nubus_dir dir; 277 nubus_dirent dirent; 278 279 /* 280 * these hardwired resource IDs are only for NetDock 281 */ 282 nubus_get_main_dir(na->fmt, &dir); 283 if (nubus_find_rsrc(bst, bsh, na->fmt, &dir, 0x81, &dirent) <= 0) 284 return 1; 285 nubus_get_dir_from_rsrc(na->fmt, &dirent, &dir); 286 if (nubus_find_rsrc(bst, bsh, na->fmt, &dir, 0x80, &dirent) <= 0) 287 return 1; 288 if (nubus_get_ind_data(bst, bsh, na->fmt, &dirent, 289 ep, ETHER_ADDR_LEN) <= 0) 290 return 1; 291 292 return 0; 293 } 294 295 #ifdef NETDOCK_DEBUG_DRIVER 296 static void 297 netdock_print_driver(bus_space_tag_t bst, bus_space_handle_t bsh, 298 struct nubus_attach_args *na) 299 { 300 #define HEADSIZE (8+4) 301 #define CODESIZE (6759-4) 302 unsigned char mydata[HEADSIZE + CODESIZE]; 303 nubus_dir dir; 304 nubus_dirent dirent; 305 int i, rv; 306 307 nubus_get_main_dir(na->fmt, &dir); 308 rv = nubus_find_rsrc(bst, bsh, na->fmt, &dir, 0x81, &dirent); 309 if (rv <= 0) { 310 printf(": can't find sResource.\n"); 311 return; 312 } 313 nubus_get_dir_from_rsrc(na->fmt, &dirent, &dir); 314 if (nubus_find_rsrc(bst, bsh, na->fmt, &dir, NUBUS_RSRC_DRVRDIR, 315 &dirent) <= 0) { 316 printf(": can't find sResource.\n"); 317 return; 318 } 319 if (nubus_get_ind_data(bst, bsh, na->fmt, 320 &dirent, mydata, HEADSIZE+CODESIZE) <= 0) { 321 printf(": can't find indirect data.\n"); 322 return; 323 } 324 printf("\n########## begin driver dir"); 325 for (i = 0; i < HEADSIZE; i++) { 326 if (i % 16 == 0) 327 printf("\n%02x:",i); 328 printf(" %02x", mydata[i]); 329 } 330 printf("\n########## begin driver code"); 331 for (i = 0; i < CODESIZE; i++) { 332 if (i % 16 == 0) 333 printf("\n%02x:",i); 334 printf(" %02x", mydata[i + HEADSIZE]); 335 } 336 #if 0 337 printf("\n########## begin driver code (partial)\n"); 338 #define PARTSIZE 256 339 #define OFFSET 0x1568 340 for (i = OFFSET; i < OFFSET + PARTSIZE; i++) { 341 if ((i - OFFSET) % 16 == 0) 342 printf("\n%02x:",i); 343 printf(" %02x", mydata[i + HEADSIZE]); 344 } 345 #endif 346 printf("\n########## end\n"); 347 } 348 #endif 349 350 351 int 352 netdock_setup(struct netdock_softc *sc, u_int8_t *lladdr) 353 { 354 struct ifnet *ifp = &sc->sc_if; 355 356 memcpy(sc->sc_enaddr, lladdr, ETHER_ADDR_LEN); 357 printf("%s: Ethernet address %s\n", 358 device_xname(sc->sc_dev), ether_sprintf(lladdr)); 359 360 memcpy(ifp->if_xname, device_xname(sc->sc_dev), IFNAMSIZ); 361 ifp->if_softc = sc; 362 ifp->if_ioctl = netdock_ioctl; 363 ifp->if_start = netdock_start; 364 ifp->if_flags = 365 IFF_BROADCAST | IFF_SIMPLEX | IFF_NOTRAILERS | IFF_MULTICAST; 366 ifp->if_watchdog = netdock_watchdog; 367 368 if_attach(ifp); 369 ether_ifattach(ifp, lladdr); 370 371 return (0); 372 } 373 374 static int 375 netdock_ioctl(struct ifnet *ifp, u_long cmd, void *data) 376 { 377 struct ifaddr *ifa; 378 struct netdock_softc *sc = ifp->if_softc; 379 int s = splnet(); 380 int err = 0; 381 int temp; 382 383 switch (cmd) { 384 case SIOCINITIFADDR: 385 ifa = (struct ifaddr *)data; 386 ifp->if_flags |= IFF_UP; 387 (void)netdock_init(sc); 388 switch (ifa->ifa_addr->sa_family) { 389 #ifdef INET 390 case AF_INET: 391 arp_ifinit(ifp, ifa); 392 break; 393 #endif 394 default: 395 break; 396 } 397 break; 398 399 case SIOCSIFFLAGS: 400 if ((err = ifioctl_common(ifp, cmd, data)) != 0) 401 break; 402 /* XXX see the comment in ed_ioctl() about code re-use */ 403 if ((ifp->if_flags & IFF_UP) == 0 && 404 (ifp->if_flags & IFF_RUNNING) != 0) { 405 netdock_stop(sc); 406 ifp->if_flags &= ~IFF_RUNNING; 407 } else if ((ifp->if_flags & IFF_UP) != 0 && 408 (ifp->if_flags & IFF_RUNNING) == 0) { 409 (void)netdock_init(sc); 410 } else { 411 temp = ifp->if_flags & IFF_UP; 412 netdock_reset(sc); 413 ifp->if_flags |= temp; 414 netdock_start(ifp); 415 } 416 break; 417 418 case SIOCADDMULTI: 419 case SIOCDELMULTI: 420 if ((err = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 421 if (ifp->if_flags & IFF_RUNNING) { 422 temp = ifp->if_flags & IFF_UP; 423 netdock_reset(sc); 424 ifp->if_flags |= temp; 425 } 426 err = 0; 427 } 428 break; 429 default: 430 err = ether_ioctl(ifp, cmd, data); 431 break; 432 } 433 splx(s); 434 return (err); 435 } 436 437 static void 438 netdock_start(struct ifnet *ifp) 439 { 440 struct netdock_softc *sc = ifp->if_softc; 441 struct mbuf *m; 442 443 if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) 444 return; 445 446 while (1) { 447 IF_DEQUEUE(&ifp->if_snd, m); 448 if (m == 0) 449 return; 450 451 if ((m->m_flags & M_PKTHDR) == 0) 452 panic("%s: netdock_start: no header mbuf", 453 device_xname(sc->sc_dev)); 454 455 bpf_mtap(ifp, m); 456 457 if ((netdock_put(sc, m)) == 0) { 458 IF_PREPEND(&ifp->if_snd, m); 459 return; 460 } 461 462 ifp->if_opackets++; 463 } 464 465 } 466 467 static void 468 netdock_reset(struct netdock_softc *sc) 469 { 470 471 netdock_stop(sc); 472 netdock_init(sc); 473 } 474 475 static int 476 netdock_init(struct netdock_softc *sc) 477 { 478 int s; 479 int saveisr; 480 int savetmp; 481 482 if (sc->sc_if.if_flags & IFF_RUNNING) 483 return (0); 484 485 s = splnet(); 486 487 /* 0606 */ 488 NIC_PUT_2(sc, REG_000E, 0x0200); 489 NIC_PUT_2(sc, REG_ISR , 0); 490 NIC_PUT_2(sc, REG_000E, 0); 491 492 NIC_PUT_2(sc, REG_0000, 0x8104); 493 NIC_PUT_2(sc, REG_0004, 0x0043); 494 NIC_PUT_2(sc, REG_000E, 0x0100); 495 NIC_PUT_2(sc, REG_0002, 0x6618); 496 NIC_PUT_2(sc, REG_0000, 0x8010); 497 498 NIC_PUT_1(sc, REG_0004 + 0, sc->sc_enaddr[0]); 499 NIC_PUT_1(sc, REG_0004 + 1, sc->sc_enaddr[1]); 500 NIC_PUT_1(sc, REG_0004 + 2, sc->sc_enaddr[2]); 501 NIC_PUT_1(sc, REG_0004 + 3, sc->sc_enaddr[3]); 502 NIC_PUT_1(sc, REG_0004 + 4, sc->sc_enaddr[4]); 503 NIC_PUT_1(sc, REG_0004 + 5, sc->sc_enaddr[5]); 504 505 NIC_PUT_2(sc, REG_ISR , 0x2008); 506 NIC_PUT_2(sc, REG_000E, 0x0200); 507 NIC_PUT_2(sc, REG_0000, 0x4000); 508 NIC_PUT_2(sc, REG_ISR, ISR_MASK); 509 510 511 /* 1320 */ 512 saveisr = NIC_GET_2(sc, REG_ISR); 513 NIC_PUT_2(sc, REG_ISR , 0); 514 savetmp = NIC_GET_2(sc, REG_000E); 515 NIC_PUT_2(sc, REG_000E, 0x0100); 516 NIC_ANDW(sc, REG_ISR, ~ISR_BIT_03); 517 NIC_PUT_2(sc, REG_000E, savetmp); 518 519 /* 1382 */ 520 savetmp = NIC_GET_2(sc, REG_000E); 521 NIC_PUT_2(sc, REG_000E, 0x0100); 522 NIC_ORW(sc, REG_ISR, ISR_BIT_03); 523 NIC_PUT_2(sc, REG_000E, savetmp); 524 NIC_PUT_2(sc, REG_ISR , saveisr); 525 526 527 sc->sc_if.if_flags |= IFF_RUNNING; 528 sc->sc_if.if_flags &= ~IFF_OACTIVE; 529 530 splx(s); 531 return (0); 532 } 533 534 static int 535 netdock_stop(struct netdock_softc *sc) 536 { 537 int s = splnet(); 538 539 sc->sc_if.if_timer = 0; 540 sc->sc_if.if_flags &= ~(IFF_RUNNING | IFF_UP); 541 542 splx(s); 543 return (0); 544 } 545 546 static void 547 netdock_watchdog(struct ifnet *ifp) 548 { 549 struct netdock_softc *sc = ifp->if_softc; 550 int tmp; 551 552 printf("netdock_watchdog: resetting chip\n"); 553 tmp = ifp->if_flags & IFF_UP; 554 netdock_reset(sc); 555 ifp->if_flags |= tmp; 556 } 557 558 static u_int 559 netdock_put(struct netdock_softc *sc, struct mbuf *m0) 560 { 561 struct mbuf *m; 562 u_int totlen = 0; 563 u_int tmplen; 564 int isr; 565 int timeout; 566 int tmp; 567 u_int i; 568 569 for (m = m0; m; m = m->m_next) 570 totlen += m->m_len; 571 572 if (totlen >= ETHER_MAX_LEN) 573 panic("%s: netdock_put: packet overflow", 574 device_xname(sc->sc_dev)); 575 576 totlen += 6; 577 tmplen = totlen; 578 tmplen &= 0xff00; 579 tmplen |= 0x2000; 580 NIC_PUT_2(sc, REG_0000, tmplen); 581 582 timeout = 0x3000; 583 while ((((isr = NIC_GET_2(sc, REG_ISR)) & ISR_READY) == 0) && 584 timeout--) { 585 if (isr & ISR_TX) 586 netdock_txint(sc); 587 } 588 if (timeout == 0) 589 return (0); 590 591 tmp = NIC_GET_2(sc, REG_0002); 592 tmp <<= 8; 593 NIC_PUT_2(sc, REG_0002, tmp); 594 NIC_PUT_2(sc, REG_0006, 0x240); 595 NIC_GET_2(sc, REG_ISR); 596 tmplen = ((totlen << 8) & 0xfe00) | ((totlen >> 8) & 0x00ff); 597 NIC_PUT_2(sc, REG_DATA, tmplen); 598 599 for (m = m0; m; m = m->m_next) { 600 u_char *data = mtod(m, u_char *); 601 int len = m->m_len; 602 int len4 = len >> 2; 603 u_int32_t *data4 = (u_int32_t *)data; 604 for (i = 0; i < len4; i++) 605 NIC_PUT_4(sc, REG_DATA, data4[i]); 606 for (i = len4 << 2; i < len; i++) 607 NIC_PUT_1(sc, REG_DATA, data[i]); 608 } 609 610 if (totlen & 0x01) 611 NIC_PUT_2(sc, REG_DATA, 0x2020); 612 else 613 NIC_PUT_2(sc, REG_DATA, 0); 614 615 NIC_PUT_2(sc, REG_0000, 0xc000); 616 617 m_freem(m0); 618 /* sc->sc_if.if_timer = 5; */ 619 return (totlen); 620 } 621 622 void 623 netdock_intr(void *arg) 624 { 625 struct netdock_softc *sc = (struct netdock_softc *)arg; 626 int isr; 627 int tmp; 628 629 NIC_PUT_2(sc, REG_ISR, 0); 630 while ((isr = (NIC_GET_2(sc, REG_ISR) & ISR_ALL)) != 0) { 631 if (isr & ISR_TX) 632 netdock_txint(sc); 633 634 if (isr & ISR_RX) 635 netdock_rxint(sc); 636 637 if (isr & (ISR_BIT_0C | ISR_BIT_0D)) { 638 if (isr & ISR_BIT_0C) { 639 NIC_PUT_2(sc, REG_000E, 0); 640 NIC_BSET(sc, REG_0004, 0x08); 641 NIC_PUT_2(sc, REG_000E, 0x0200); 642 } 643 if (isr & ISR_BIT_0D) { 644 NIC_PUT_2(sc, REG_000E, 0); 645 tmp = NIC_GET_2(sc, REG_0002); 646 if (tmp & REG_0002_BIT_04) 647 NIC_GET_2(sc, REG_0006); 648 tmp = NIC_GET_2(sc, REG_0000); 649 if (tmp & REG_0000_BIT_08) 650 NIC_BSET(sc, REG_0000, 0x08); 651 NIC_PUT_2(sc, REG_000E, 0x0200); 652 } 653 NIC_PUT_2(sc, REG_ISR, isr); 654 } 655 } 656 NIC_PUT_2(sc, REG_ISR, ISR_MASK); 657 } 658 659 static void 660 netdock_txint(struct netdock_softc *sc) 661 { 662 struct ifnet *ifp = &sc->sc_if; 663 int savereg0002; 664 int reg0004; 665 int regdata; 666 667 ifp->if_flags &= ~IFF_OACTIVE; 668 ifp->if_timer = 0; 669 670 savereg0002 = NIC_GET_2(sc, REG_0002); 671 672 while (((reg0004 = NIC_GET_2(sc, REG_0004)) & REG_0004_BIT_0F) == 0) { 673 NIC_PUT_2(sc, REG_0002, reg0004); 674 NIC_PUT_2(sc, REG_0006, 0x0060); 675 NIC_GET_2(sc, REG_ISR); 676 regdata = NIC_GET_2(sc, REG_DATA); 677 if ((regdata & REG_DATA_BIT_08) == 0) { 678 /* ifp->if_collisions++; */ 679 if (regdata & REG_DATA_BIT_07) 680 /* ifp->if_oerrors++; */ 681 NIC_PUT_2(sc, REG_000E, 0); 682 NIC_ORW(sc, REG_0000, 0x0100); 683 NIC_PUT_2(sc, REG_000E, 0x0200); 684 } 685 NIC_GET_2(sc ,REG_DATA); 686 687 if (regdata & REG_DATA_BIT_0F) 688 NIC_GET_4(sc, REG_EFD00); 689 NIC_PUT_2(sc, REG_0000, 0xa000); 690 NIC_PUT_2(sc, REG_ISR, ISR_TX); 691 } 692 693 NIC_PUT_2(sc, REG_0002, savereg0002); 694 NIC_PUT_2(sc, REG_000E, 0); 695 NIC_GET_2(sc, REG_0006); 696 NIC_PUT_2(sc, REG_000E, 0x0200); 697 NIC_PUT_2(sc, REG_0006, 0); 698 } 699 700 static void 701 netdock_rxint(struct netdock_softc *sc) 702 { 703 struct ifnet *ifp = &sc->sc_if; 704 int regdata1; 705 int regdata2; 706 u_int len; 707 int timeout; 708 709 while ((NIC_GET_2(sc, REG_0004) & REG_0004_BIT_07) == 0) { 710 NIC_GET_2(sc, REG_ISR); 711 NIC_PUT_2(sc, REG_0006, 0x00e0); 712 NIC_GET_2(sc, REG_ISR); 713 regdata1 = NIC_GET_2(sc, REG_DATA); 714 regdata2 = NIC_GET_2(sc, REG_DATA); 715 len = ((regdata2 << 8) & 0x0700) | ((regdata2 >> 8) & 0x00ff); 716 717 #if 0 718 printf("netdock_rxint: r1=0x%04x, r2=0x%04x, len=%d\n", 719 regdata1, regdata2, len); 720 #endif 721 722 if ((regdata1 & REG_DATA_BIT_04) == 0) 723 len -= 2; 724 725 /* CRC is included with the packet; trim it off. */ 726 len -= ETHER_CRC_LEN; 727 728 if ((regdata1 & 0x00ac) == 0) { 729 if (netdock_read(sc, len)) 730 ifp->if_ipackets++; 731 else 732 ifp->if_ierrors++; 733 } else { 734 ifp->if_ierrors++; 735 736 if (regdata1 & REG_DATA_BIT_02) 737 NIC_GET_4(sc, REG_EFD00); 738 if (regdata1 & REG_DATA_BIT_03) 739 ; 740 if (regdata1 & REG_DATA_BIT_05) 741 NIC_GET_4(sc, REG_EFD00); 742 if (regdata1 & REG_DATA_BIT_07) 743 ; 744 } 745 746 timeout = 0x14; 747 while ((NIC_GET_2(sc, REG_0000) & REG_0000_BIT_08) && timeout--) 748 ; 749 if (timeout == 0) 750 ; 751 752 NIC_PUT_2(sc, REG_0000, 0x8000); 753 } 754 NIC_PUT_2(sc, REG_0006, 0); 755 } 756 757 static int 758 netdock_read(struct netdock_softc *sc, int len) 759 { 760 struct ifnet *ifp = &sc->sc_if; 761 struct mbuf *m; 762 763 m = netdock_get(sc, len); 764 if (m == 0) 765 return (0); 766 767 bpf_mtap(ifp, m); 768 769 (*ifp->if_input)(ifp, m); 770 771 return (1); 772 } 773 774 static struct mbuf * 775 netdock_get(struct netdock_softc *sc, int datalen) 776 { 777 struct mbuf *m, *top, **mp; 778 u_char *data; 779 int i; 780 int len; 781 int len4; 782 u_int32_t *data4; 783 784 MGETHDR(m, M_DONTWAIT, MT_DATA); 785 if (m == NULL) 786 return (NULL); 787 m->m_pkthdr.rcvif = &sc->sc_if; 788 m->m_pkthdr.len = datalen; 789 len = MHLEN; 790 top = NULL; 791 mp = ⊤ 792 793 while (datalen > 0) { 794 if (top) { 795 MGET(m, M_DONTWAIT, MT_DATA); 796 if (m == 0) { 797 m_freem(top); 798 return (NULL); 799 } 800 len = MLEN; 801 } 802 if (datalen >= MINCLSIZE) { 803 MCLGET(m, M_DONTWAIT); 804 if ((m->m_flags & M_EXT) == 0) { 805 if (top) 806 m_freem(top); 807 return (NULL); 808 } 809 len = MCLBYTES; 810 } 811 812 if (mp == &top) { 813 char *newdata = (char *) 814 ALIGN(m->m_data + sizeof(struct ether_header)) - 815 sizeof(struct ether_header); 816 len -= newdata - m->m_data; 817 m->m_data = newdata; 818 } 819 820 m->m_len = len = min(datalen, len); 821 822 data = mtod(m, u_char *); 823 len4 = len >> 2; 824 data4 = (u_int32_t *)data; 825 for (i = 0; i < len4; i++) 826 data4[i] = NIC_GET_4(sc, REG_DATA); 827 for (i = len4 << 2; i < len; i++) 828 data[i] = NIC_GET_1(sc, REG_DATA); 829 830 datalen -= len; 831 *mp = m; 832 mp = &m->m_next; 833 } 834 835 return (top); 836 } 837
Indexes created Fri Oct 03 02:09:57 GMT 2025