1 /* 2 * Copyright (c) 2002-2003 3 * Hidetoshi Shimokawa. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * 16 * This product includes software developed by Hidetoshi Shimokawa. 17 * 18 * 4. Neither the name of the author nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $FreeBSD: src/sys/dev/firewire/if_fwe.c,v 1.27 2004/01/08 14:58:09 simokawa Exp $ 35 * $DragonFly: src/sys/dev/netif/fwe/if_fwe.c,v 1.15 2005/05/25 01:44:23 dillon Exp $ 36 */ 37 38 #include "opt_inet.h" 39 40 #include <sys/param.h> 41 #include <sys/conf.h> 42 #include <sys/kernel.h> 43 #include <sys/malloc.h> 44 #include <sys/mbuf.h> 45 #include <sys/socket.h> 46 #include <sys/sockio.h> 47 #include <sys/sysctl.h> 48 #include <sys/systm.h> 49 #include <sys/module.h> 50 #include <sys/bus.h> 51 #include <machine/bus.h> 52 53 #include <net/bpf.h> 54 #include <net/ethernet.h> 55 #include <net/if.h> 56 #include <net/if_arp.h> 57 #ifdef __DragonFly__ 58 #include <net/ifq_var.h> 59 #include <net/vlan/if_vlan_var.h> 60 #include <bus/firewire/firewire.h> 61 #include <bus/firewire/firewirereg.h> 62 #include "if_fwevar.h" 63 #else 64 #include <net/if_vlan_var.h> 65 66 #include <dev/firewire/firewire.h> 67 #include <dev/firewire/firewirereg.h> 68 #include <dev/firewire/if_fwevar.h> 69 #endif 70 71 #define FWEDEBUG if (fwedebug) if_printf 72 #define TX_MAX_QUEUE (FWMAXQUEUE - 1) 73 74 /* network interface */ 75 static void fwe_start (struct ifnet *); 76 static int fwe_ioctl (struct ifnet *, u_long, caddr_t, struct ucred *); 77 static void fwe_init (void *); 78 79 static void fwe_output_callback (struct fw_xfer *); 80 static void fwe_as_output (struct fwe_softc *, struct ifnet *); 81 static void fwe_as_input (struct fw_xferq *); 82 83 static int fwedebug = 0; 84 static int stream_ch = 1; 85 static int tx_speed = 2; 86 static int rx_queue_len = FWMAXQUEUE; 87 88 MALLOC_DEFINE(M_FWE, "if_fwe", "Ethernet over FireWire interface"); 89 SYSCTL_INT(_debug, OID_AUTO, if_fwe_debug, CTLFLAG_RW, &fwedebug, 0, ""); 90 SYSCTL_DECL(_hw_firewire); 91 SYSCTL_NODE(_hw_firewire, OID_AUTO, fwe, CTLFLAG_RD, 0, 92 "Ethernet emulation subsystem"); 93 SYSCTL_INT(_hw_firewire_fwe, OID_AUTO, stream_ch, CTLFLAG_RW, &stream_ch, 0, 94 "Stream channel to use"); 95 SYSCTL_INT(_hw_firewire_fwe, OID_AUTO, tx_speed, CTLFLAG_RW, &tx_speed, 0, 96 "Transmission speed"); 97 SYSCTL_INT(_hw_firewire_fwe, OID_AUTO, rx_queue_len, CTLFLAG_RW, &rx_queue_len, 98 0, "Length of the receive queue"); 99 100 TUNABLE_INT("hw.firewire.fwe.stream_ch", &stream_ch); 101 TUNABLE_INT("hw.firewire.fwe.tx_speed", &tx_speed); 102 TUNABLE_INT("hw.firewire.fwe.rx_queue_len", &rx_queue_len); 103 104 #ifdef DEVICE_POLLING 105 106 static void 107 fwe_poll(struct ifnet *ifp, enum poll_cmd cmd, int count) 108 { 109 struct fwe_softc *fwe; 110 struct firewire_comm *fc; 111 112 fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 113 fc = fwe->fd.fc; 114 switch(cmd) { 115 case POLL_REGISTER: 116 /* disable interrupts */ 117 fc->set_intr(fc, 0); 118 break; 119 case POLL_DEREGISTER: 120 /* enable interrupts */ 121 fc->set_intr(fc, 1); 122 break; 123 default: 124 fc->poll(fc, (cmd == POLL_AND_CHECK_STATUS)?0:1, count); 125 break; 126 } 127 } 128 129 #endif 130 131 static void 132 fwe_identify(driver_t *driver, device_t parent) 133 { 134 BUS_ADD_CHILD(parent, 0, "fwe", device_get_unit(parent)); 135 } 136 137 static int 138 fwe_probe(device_t dev) 139 { 140 device_t pa; 141 142 pa = device_get_parent(dev); 143 if(device_get_unit(dev) != device_get_unit(pa)){ 144 return(ENXIO); 145 } 146 147 device_set_desc(dev, "Ethernet over FireWire"); 148 return (0); 149 } 150 151 static int 152 fwe_attach(device_t dev) 153 { 154 struct fwe_softc *fwe; 155 struct ifnet *ifp; 156 int unit, s; 157 u_char *eaddr; 158 struct fw_eui64 *eui; 159 160 fwe = ((struct fwe_softc *)device_get_softc(dev)); 161 unit = device_get_unit(dev); 162 163 bzero(fwe, sizeof(struct fwe_softc)); 164 /* XXX */ 165 fwe->stream_ch = stream_ch; 166 fwe->dma_ch = -1; 167 168 fwe->fd.fc = device_get_ivars(dev); 169 if (tx_speed < 0) 170 tx_speed = fwe->fd.fc->speed; 171 172 fwe->fd.dev = dev; 173 fwe->fd.post_explore = NULL; 174 fwe->eth_softc.fwe = fwe; 175 176 fwe->pkt_hdr.mode.stream.tcode = FWTCODE_STREAM; 177 fwe->pkt_hdr.mode.stream.sy = 0; 178 fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 179 180 /* generate fake MAC address: first and last 3bytes from eui64 */ 181 #define LOCAL (0x02) 182 #define GROUP (0x01) 183 eaddr = &fwe->eth_softc.arpcom.ac_enaddr[0]; 184 185 eui = &fwe->fd.fc->eui; 186 eaddr[0] = (FW_EUI64_BYTE(eui, 0) | LOCAL) & ~GROUP; 187 eaddr[1] = FW_EUI64_BYTE(eui, 1); 188 eaddr[2] = FW_EUI64_BYTE(eui, 2); 189 eaddr[3] = FW_EUI64_BYTE(eui, 5); 190 eaddr[4] = FW_EUI64_BYTE(eui, 6); 191 eaddr[5] = FW_EUI64_BYTE(eui, 7); 192 printf("if_fwe%d: Fake Ethernet address: " 193 "%02x:%02x:%02x:%02x:%02x:%02x\n", unit, 194 eaddr[0], eaddr[1], eaddr[2], eaddr[3], eaddr[4], eaddr[5]); 195 196 /* fill the rest and attach interface */ 197 ifp = &fwe->fwe_if; 198 ifp->if_softc = &fwe->eth_softc; 199 200 #if __FreeBSD_version >= 501113 || defined(__DragonFly__) 201 if_initname(ifp, device_get_name(dev), unit); 202 #else 203 ifp->if_unit = unit; 204 ifp->if_name = "fwe"; 205 #endif 206 ifp->if_init = fwe_init; 207 ifp->if_start = fwe_start; 208 ifp->if_ioctl = fwe_ioctl; 209 #ifdef DEVICE_POLLING 210 ifp->if_poll = fwe_poll; 211 #endif 212 ifp->if_mtu = ETHERMTU; 213 ifp->if_flags = (IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST); 214 ifq_set_maxlen(&ifp->if_snd, TX_MAX_QUEUE); 215 ifq_set_ready(&ifp->if_snd); 216 217 s = splimp(); 218 ether_ifattach(ifp, eaddr); 219 splx(s); 220 221 /* Tell the upper layer(s) we support long frames. */ 222 ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header); 223 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 224 ifp->if_capabilities |= IFCAP_VLAN_MTU; 225 #endif 226 227 228 FWEDEBUG(ifp, "interface created\n"); 229 return 0; 230 } 231 232 static void 233 fwe_stop(struct fwe_softc *fwe) 234 { 235 struct firewire_comm *fc; 236 struct fw_xferq *xferq; 237 struct ifnet *ifp = &fwe->fwe_if; 238 struct fw_xfer *xfer, *next; 239 int i; 240 241 fc = fwe->fd.fc; 242 243 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 244 245 if (fwe->dma_ch >= 0) { 246 xferq = fc->ir[fwe->dma_ch]; 247 248 if (xferq->flag & FWXFERQ_RUNNING) 249 fc->irx_disable(fc, fwe->dma_ch); 250 xferq->flag &= 251 ~(FWXFERQ_MODEMASK | FWXFERQ_OPEN | FWXFERQ_STREAM | 252 FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_CHTAGMASK); 253 xferq->hand = NULL; 254 255 for (i = 0; i < xferq->bnchunk; i ++) 256 m_freem(xferq->bulkxfer[i].mbuf); 257 free(xferq->bulkxfer, M_FWE); 258 259 for (xfer = STAILQ_FIRST(&fwe->xferlist); xfer != NULL; 260 xfer = next) { 261 next = STAILQ_NEXT(xfer, link); 262 fw_xfer_free(xfer); 263 } 264 STAILQ_INIT(&fwe->xferlist); 265 266 xferq->bulkxfer = NULL; 267 fwe->dma_ch = -1; 268 } 269 } 270 271 static int 272 fwe_detach(device_t dev) 273 { 274 struct fwe_softc *fwe; 275 int s; 276 277 fwe = (struct fwe_softc *)device_get_softc(dev); 278 s = splimp(); 279 280 fwe_stop(fwe); 281 ether_ifdetach(&fwe->fwe_if); 282 283 splx(s); 284 return 0; 285 } 286 287 static void 288 fwe_init(void *arg) 289 { 290 struct fwe_softc *fwe = ((struct fwe_eth_softc *)arg)->fwe; 291 struct firewire_comm *fc; 292 struct ifnet *ifp = &fwe->fwe_if; 293 struct fw_xferq *xferq; 294 struct fw_xfer *xfer; 295 struct mbuf *m; 296 int i; 297 298 FWEDEBUG(ifp, "initializing\n"); 299 300 /* XXX keep promiscoud mode */ 301 ifp->if_flags |= IFF_PROMISC; 302 303 fc = fwe->fd.fc; 304 #define START 0 305 if (fwe->dma_ch < 0) { 306 for (i = START; i < fc->nisodma; i ++) { 307 xferq = fc->ir[i]; 308 if ((xferq->flag & FWXFERQ_OPEN) == 0) 309 goto found; 310 } 311 printf("no free dma channel\n"); 312 return; 313 found: 314 fwe->dma_ch = i; 315 fwe->stream_ch = stream_ch; 316 fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 317 /* allocate DMA channel and init packet mode */ 318 xferq->flag |= FWXFERQ_OPEN | FWXFERQ_EXTBUF | 319 FWXFERQ_HANDLER | FWXFERQ_STREAM; 320 xferq->flag &= ~0xff; 321 xferq->flag |= fwe->stream_ch & 0xff; 322 /* register fwe_input handler */ 323 xferq->sc = (caddr_t) fwe; 324 xferq->hand = fwe_as_input; 325 xferq->bnchunk = rx_queue_len; 326 xferq->bnpacket = 1; 327 xferq->psize = MCLBYTES; 328 xferq->queued = 0; 329 xferq->buf = NULL; 330 xferq->bulkxfer = (struct fw_bulkxfer *) malloc( 331 sizeof(struct fw_bulkxfer) * xferq->bnchunk, 332 M_FWE, M_WAITOK); 333 if (xferq->bulkxfer == NULL) { 334 printf("if_fwe: malloc failed\n"); 335 return; 336 } 337 STAILQ_INIT(&xferq->stvalid); 338 STAILQ_INIT(&xferq->stfree); 339 STAILQ_INIT(&xferq->stdma); 340 xferq->stproc = NULL; 341 for (i = 0; i < xferq->bnchunk; i ++) { 342 m = 343 #if defined(__DragonFly__) 344 m_getcl(MB_WAIT, MT_DATA, M_PKTHDR); 345 #elif __FreeBSD_version < 500000 346 m_getcl(M_WAIT, MT_DATA, M_PKTHDR); 347 #else 348 m_getcl(M_TRYWAIT, MT_DATA, M_PKTHDR); 349 #endif 350 xferq->bulkxfer[i].mbuf = m; 351 if (m != NULL) { 352 m->m_len = m->m_pkthdr.len = m->m_ext.ext_size; 353 STAILQ_INSERT_TAIL(&xferq->stfree, 354 &xferq->bulkxfer[i], link); 355 } else 356 printf("fwe_as_input: m_getcl failed\n"); 357 } 358 STAILQ_INIT(&fwe->xferlist); 359 for (i = 0; i < TX_MAX_QUEUE; i++) { 360 xfer = fw_xfer_alloc(M_FWE); 361 if (xfer == NULL) 362 break; 363 xfer->send.spd = tx_speed; 364 xfer->fc = fwe->fd.fc; 365 xfer->retry_req = fw_asybusy; 366 xfer->sc = (caddr_t)fwe; 367 xfer->act.hand = fwe_output_callback; 368 STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 369 } 370 } else 371 xferq = fc->ir[fwe->dma_ch]; 372 373 374 /* start dma */ 375 if ((xferq->flag & FWXFERQ_RUNNING) == 0) 376 fc->irx_enable(fc, fwe->dma_ch); 377 378 ifp->if_flags |= IFF_RUNNING; 379 ifp->if_flags &= ~IFF_OACTIVE; 380 } 381 382 383 static int 384 fwe_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr) 385 { 386 struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 387 struct ifstat *ifs = NULL; 388 int s, error, len; 389 390 switch (cmd) { 391 case SIOCSIFFLAGS: 392 s = splimp(); 393 if (ifp->if_flags & IFF_UP) { 394 if (!(ifp->if_flags & IFF_RUNNING)) 395 fwe_init(&fwe->eth_softc); 396 } else { 397 if (ifp->if_flags & IFF_RUNNING) 398 fwe_stop(fwe); 399 } 400 /* XXX keep promiscoud mode */ 401 ifp->if_flags |= IFF_PROMISC; 402 splx(s); 403 break; 404 case SIOCADDMULTI: 405 case SIOCDELMULTI: 406 break; 407 408 case SIOCGIFSTATUS: 409 s = splimp(); 410 ifs = (struct ifstat *)data; 411 len = strlen(ifs->ascii); 412 if (len < sizeof(ifs->ascii)) 413 snprintf(ifs->ascii + len, 414 sizeof(ifs->ascii) - len, 415 "\tch %d dma %d\n", 416 fwe->stream_ch, fwe->dma_ch); 417 splx(s); 418 break; 419 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 420 default: 421 #else 422 case SIOCSIFADDR: 423 case SIOCGIFADDR: 424 case SIOCSIFMTU: 425 #endif 426 s = splimp(); 427 error = ether_ioctl(ifp, cmd, data); 428 splx(s); 429 return (error); 430 #if defined(__DragonFly__) || __FreeBSD_version < 500000 431 default: 432 return (EINVAL); 433 #endif 434 } 435 436 return (0); 437 } 438 439 static void 440 fwe_output_callback(struct fw_xfer *xfer) 441 { 442 struct fwe_softc *fwe; 443 struct ifnet *ifp; 444 int s; 445 446 fwe = (struct fwe_softc *)xfer->sc; 447 ifp = &fwe->fwe_if; 448 /* XXX error check */ 449 FWEDEBUG(ifp, "resp = %d\n", xfer->resp); 450 if (xfer->resp != 0) 451 ifp->if_oerrors ++; 452 453 m_freem(xfer->mbuf); 454 fw_xfer_unload(xfer); 455 456 s = splimp(); 457 STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 458 splx(s); 459 460 /* for queue full */ 461 if (!ifq_is_empty(&ifp->if_snd)) 462 fwe_start(ifp); 463 } 464 465 static void 466 fwe_start(struct ifnet *ifp) 467 { 468 struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 469 int s; 470 471 FWEDEBUG(ifp, "starting\n"); 472 473 if (fwe->dma_ch < 0) { 474 FWEDEBUG(ifp, "not ready\n"); 475 476 s = splimp(); 477 ifq_purge(&ifp->if_snd); 478 splx(s); 479 480 return; 481 } 482 483 s = splimp(); 484 ifp->if_flags |= IFF_OACTIVE; 485 486 if (!ifq_is_empty(&ifp->if_snd)) 487 fwe_as_output(fwe, ifp); 488 489 ifp->if_flags &= ~IFF_OACTIVE; 490 splx(s); 491 } 492 493 #define HDR_LEN 4 494 #ifndef ETHER_ALIGN 495 #define ETHER_ALIGN 2 496 #endif 497 /* Async. stream output */ 498 static void 499 fwe_as_output(struct fwe_softc *fwe, struct ifnet *ifp) 500 { 501 struct mbuf *m; 502 struct fw_xfer *xfer; 503 struct fw_xferq *xferq; 504 struct fw_pkt *fp; 505 int i = 0; 506 507 xfer = NULL; 508 xferq = fwe->fd.fc->atq; 509 while (xferq->queued < xferq->maxq - 1) { 510 xfer = STAILQ_FIRST(&fwe->xferlist); 511 if (xfer == NULL) { 512 printf("if_fwe: lack of xfer\n"); 513 return; 514 } 515 m = ifq_dequeue(&ifp->if_snd); 516 if (m == NULL) 517 break; 518 STAILQ_REMOVE_HEAD(&fwe->xferlist, link); 519 BPF_MTAP(ifp, m); 520 521 /* keep ip packet alignment for alpha */ 522 M_PREPEND(m, ETHER_ALIGN, MB_DONTWAIT); 523 fp = &xfer->send.hdr; 524 *(u_int32_t *)&xfer->send.hdr = *(int32_t *)&fwe->pkt_hdr; 525 fp->mode.stream.len = m->m_pkthdr.len; 526 xfer->mbuf = m; 527 xfer->send.pay_len = m->m_pkthdr.len; 528 529 if (fw_asyreq(fwe->fd.fc, -1, xfer) != 0) { 530 /* error */ 531 ifp->if_oerrors ++; 532 /* XXX set error code */ 533 fwe_output_callback(xfer); 534 } else { 535 ifp->if_opackets ++; 536 i++; 537 } 538 } 539 #if 0 540 if (i > 1) 541 printf("%d queued\n", i); 542 #endif 543 if (i > 0) 544 xferq->start(fwe->fd.fc); 545 } 546 547 /* Async. stream output */ 548 static void 549 fwe_as_input(struct fw_xferq *xferq) 550 { 551 struct mbuf *m, *m0; 552 struct ifnet *ifp; 553 struct fwe_softc *fwe; 554 struct fw_bulkxfer *sxfer; 555 struct fw_pkt *fp; 556 u_char *c; 557 558 fwe = (struct fwe_softc *)xferq->sc; 559 ifp = &fwe->fwe_if; 560 while ((sxfer = STAILQ_FIRST(&xferq->stvalid)) != NULL) { 561 STAILQ_REMOVE_HEAD(&xferq->stvalid, link); 562 fp = mtod(sxfer->mbuf, struct fw_pkt *); 563 if (fwe->fd.fc->irx_post != NULL) 564 fwe->fd.fc->irx_post(fwe->fd.fc, fp->mode.ld); 565 m = sxfer->mbuf; 566 567 /* insert new rbuf */ 568 sxfer->mbuf = m0 = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR); 569 if (m0 != NULL) { 570 m0->m_len = m0->m_pkthdr.len = m0->m_ext.ext_size; 571 STAILQ_INSERT_TAIL(&xferq->stfree, sxfer, link); 572 } else 573 printf("fwe_as_input: m_getcl failed\n"); 574 575 if (sxfer->resp != 0 || fp->mode.stream.len < 576 ETHER_ALIGN + sizeof(struct ether_header)) { 577 m_freem(m); 578 ifp->if_ierrors ++; 579 continue; 580 } 581 582 m->m_data += HDR_LEN + ETHER_ALIGN; 583 c = mtod(m, char *); 584 m->m_len = m->m_pkthdr.len = 585 fp->mode.stream.len - ETHER_ALIGN; 586 m->m_pkthdr.rcvif = ifp; 587 #if 0 588 FWEDEBUG(ifp, "%02x %02x %02x %02x %02x %02x\n" 589 "%02x %02x %02x %02x %02x %02x\n" 590 "%02x %02x %02x %02x\n" 591 "%02x %02x %02x %02x\n" 592 "%02x %02x %02x %02x\n" 593 "%02x %02x %02x %02x\n", 594 c[0], c[1], c[2], c[3], c[4], c[5], 595 c[6], c[7], c[8], c[9], c[10], c[11], 596 c[12], c[13], c[14], c[15], 597 c[16], c[17], c[18], c[19], 598 c[20], c[21], c[22], c[23], 599 c[20], c[21], c[22], c[23] 600 ); 601 #endif 602 (*ifp->if_input)(ifp, m); 603 ifp->if_ipackets ++; 604 } 605 if (STAILQ_FIRST(&xferq->stfree) != NULL) 606 fwe->fd.fc->irx_enable(fwe->fd.fc, fwe->dma_ch); 607 } 608 609 610 static devclass_t fwe_devclass; 611 612 static device_method_t fwe_methods[] = { 613 /* device interface */ 614 DEVMETHOD(device_identify, fwe_identify), 615 DEVMETHOD(device_probe, fwe_probe), 616 DEVMETHOD(device_attach, fwe_attach), 617 DEVMETHOD(device_detach, fwe_detach), 618 { 0, 0 } 619 }; 620 621 static driver_t fwe_driver = { 622 "fwe", 623 fwe_methods, 624 sizeof(struct fwe_softc), 625 }; 626 627 628 DECLARE_DUMMY_MODULE(fwe); 629 DRIVER_MODULE(fwe, firewire, fwe_driver, fwe_devclass, 0, 0); 630 MODULE_VERSION(fwe, 1); 631 MODULE_DEPEND(fwe, firewire, 1, 1, 1); 632