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 * $FreeBSD$ 35 */ 36 37 #include "opt_inet.h" 38 39 #include <sys/param.h> 40 #include <sys/kernel.h> 41 #include <sys/malloc.h> 42 #include <sys/mbuf.h> 43 #include <sys/socket.h> 44 #include <sys/sockio.h> 45 #include <sys/sysctl.h> 46 #include <sys/systm.h> 47 #include <sys/module.h> 48 #include <sys/bus.h> 49 #include <machine/bus.h> 50 51 #include <net/bpf.h> 52 #include <net/ethernet.h> 53 #include <net/if.h> 54 #include <net/if_arp.h> 55 #include <net/if_vlan_var.h> 56 57 #include <dev/firewire/firewire.h> 58 #include <dev/firewire/firewirereg.h> 59 #include <dev/firewire/if_fwevar.h> 60 61 #define FWEDEBUG if (fwedebug) printf 62 #define TX_MAX_QUEUE (FWMAXQUEUE - 1) 63 #define RX_MAX_QUEUE FWMAXQUEUE 64 65 /* network interface */ 66 static void fwe_start __P((struct ifnet *)); 67 static int fwe_ioctl __P((struct ifnet *, u_long, caddr_t)); 68 static void fwe_init __P((void *)); 69 70 static void fwe_output_callback __P((struct fw_xfer *)); 71 static void fwe_as_output __P((struct fwe_softc *, struct ifnet *)); 72 static void fwe_as_input __P((struct fw_xferq *)); 73 74 static int fwedebug = 0; 75 static int stream_ch = 1; 76 static int tx_speed = 2; 77 78 MALLOC_DEFINE(M_FWE, "if_fwe", "Ethernet over FireWire interface"); 79 SYSCTL_INT(_debug, OID_AUTO, if_fwe_debug, CTLFLAG_RW, &fwedebug, 0, ""); 80 SYSCTL_DECL(_hw_firewire); 81 SYSCTL_NODE(_hw_firewire, OID_AUTO, fwe, CTLFLAG_RD, 0, 82 "Ethernet Emulation Subsystem"); 83 SYSCTL_INT(_hw_firewire_fwe, OID_AUTO, stream_ch, CTLFLAG_RW, &stream_ch, 0, 84 "Stream channel to use"); 85 SYSCTL_INT(_hw_firewire_fwe, OID_AUTO, tx_speed, CTLFLAG_RW, &tx_speed, 0, 86 "Transmission Speed"); 87 88 #ifdef DEVICE_POLLING 89 #define FWE_POLL_REGISTER(func, fwe, ifp) \ 90 if (ether_poll_register(func, ifp)) { \ 91 struct firewire_comm *fc = (fwe)->fd.fc; \ 92 fc->set_intr(fc, 0); \ 93 } 94 95 #define FWE_POLL_DEREGISTER(fwe, ifp) \ 96 do { \ 97 struct firewire_comm *fc = (fwe)->fd.fc; \ 98 ether_poll_deregister(ifp); \ 99 fc->set_intr(fc, 1); \ 100 } while(0) \ 101 102 static poll_handler_t fwe_poll; 103 104 static void 105 fwe_poll(struct ifnet *ifp, enum poll_cmd cmd, int count) 106 { 107 struct fwe_softc *fwe; 108 struct firewire_comm *fc; 109 110 fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 111 fc = fwe->fd.fc; 112 if (cmd == POLL_DEREGISTER) { 113 /* enable interrupts */ 114 fc->set_intr(fc, 1); 115 return; 116 } 117 fc->poll(fc, (cmd == POLL_AND_CHECK_STATUS)?0:1, count); 118 } 119 #else 120 #define FWE_POLL_REGISTER(func, fwe, ifp) 121 #define FWE_POLL_DEREGISTER(fwe, ifp) 122 #endif 123 static void 124 fwe_identify(driver_t *driver, device_t parent) 125 { 126 BUS_ADD_CHILD(parent, 0, "if_fwe", device_get_unit(parent)); 127 } 128 129 static int 130 fwe_probe(device_t dev) 131 { 132 device_t pa; 133 134 pa = device_get_parent(dev); 135 if(device_get_unit(dev) != device_get_unit(pa)){ 136 return(ENXIO); 137 } 138 139 device_set_desc(dev, "Ethernet over FireWire"); 140 return (0); 141 } 142 143 static int 144 fwe_attach(device_t dev) 145 { 146 struct fwe_softc *fwe; 147 struct ifnet *ifp; 148 int unit, s; 149 u_char *eaddr; 150 struct fw_eui64 *eui; 151 152 fwe = ((struct fwe_softc *)device_get_softc(dev)); 153 unit = device_get_unit(dev); 154 155 bzero(fwe, sizeof(struct fwe_softc)); 156 /* XXX */ 157 fwe->stream_ch = stream_ch; 158 fwe->dma_ch = -1; 159 160 fwe->fd.fc = device_get_ivars(dev); 161 fwe->fd.dev = dev; 162 fwe->fd.post_explore = NULL; 163 fwe->eth_softc.fwe = fwe; 164 165 fwe->pkt_hdr.mode.stream.tcode = FWTCODE_STREAM; 166 fwe->pkt_hdr.mode.stream.sy = 0; 167 fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 168 169 /* generate fake MAC address: first and last 3bytes from eui64 */ 170 #define LOCAL (0x02) 171 #define GROUP (0x01) 172 eaddr = &fwe->eth_softc.arpcom.ac_enaddr[0]; 173 174 eui = &fwe->fd.fc->eui; 175 eaddr[0] = (FW_EUI64_BYTE(eui, 0) | LOCAL) & ~GROUP; 176 eaddr[1] = FW_EUI64_BYTE(eui, 1); 177 eaddr[2] = FW_EUI64_BYTE(eui, 2); 178 eaddr[3] = FW_EUI64_BYTE(eui, 5); 179 eaddr[4] = FW_EUI64_BYTE(eui, 6); 180 eaddr[5] = FW_EUI64_BYTE(eui, 7); 181 printf("if_fwe%d: Fake Ethernet address: " 182 "%02x:%02x:%02x:%02x:%02x:%02x\n", unit, 183 eaddr[0], eaddr[1], eaddr[2], eaddr[3], eaddr[4], eaddr[5]); 184 185 /* fill the rest and attach interface */ 186 ifp = &fwe->fwe_if; 187 ifp->if_softc = &fwe->eth_softc; 188 189 ifp->if_unit = unit; 190 ifp->if_name = "fwe"; 191 ifp->if_init = fwe_init; 192 ifp->if_output = ether_output; 193 ifp->if_start = fwe_start; 194 ifp->if_ioctl = fwe_ioctl; 195 ifp->if_mtu = ETHERMTU; 196 ifp->if_flags = (IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST); 197 ifp->if_snd.ifq_maxlen = TX_MAX_QUEUE; 198 199 s = splimp(); 200 #if __FreeBSD_version >= 500000 201 ether_ifattach(ifp, eaddr); 202 #else 203 ether_ifattach(ifp, 1); 204 #endif 205 splx(s); 206 207 /* Tell the upper layer(s) we support long frames. */ 208 ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header); 209 #if __FreeBSD_version >= 500000 210 ifp->if_capabilities |= IFCAP_VLAN_MTU; 211 #endif 212 213 214 FWEDEBUG("interface %s%d created.\n", ifp->if_name, ifp->if_unit); 215 return 0; 216 } 217 218 static void 219 fwe_stop(struct fwe_softc *fwe) 220 { 221 struct firewire_comm *fc; 222 struct fw_xferq *xferq; 223 struct ifnet *ifp = &fwe->fwe_if; 224 struct fw_xfer *xfer, *next; 225 int i; 226 227 fc = fwe->fd.fc; 228 229 FWE_POLL_DEREGISTER(fwe, ifp); 230 231 if (fwe->dma_ch >= 0) { 232 xferq = fc->ir[fwe->dma_ch]; 233 234 if (xferq->flag & FWXFERQ_RUNNING) 235 fc->irx_disable(fc, fwe->dma_ch); 236 xferq->flag &= 237 ~(FWXFERQ_MODEMASK | FWXFERQ_OPEN | FWXFERQ_STREAM | 238 FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_CHTAGMASK); 239 xferq->hand = NULL; 240 241 for (i = 0; i < xferq->bnchunk; i ++) 242 m_freem(xferq->bulkxfer[i].mbuf); 243 free(xferq->bulkxfer, M_FWE); 244 245 for (xfer = STAILQ_FIRST(&fwe->xferlist); xfer != NULL; 246 xfer = next) { 247 next = STAILQ_NEXT(xfer, link); 248 fw_xfer_free(xfer); 249 } 250 STAILQ_INIT(&fwe->xferlist); 251 252 xferq->bulkxfer = NULL; 253 fwe->dma_ch = -1; 254 } 255 256 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 257 } 258 259 static int 260 fwe_detach(device_t dev) 261 { 262 struct fwe_softc *fwe; 263 int s; 264 265 fwe = (struct fwe_softc *)device_get_softc(dev); 266 s = splimp(); 267 268 fwe_stop(fwe); 269 #if __FreeBSD_version >= 500000 270 ether_ifdetach(&fwe->fwe_if); 271 #else 272 ether_ifdetach(&fwe->fwe_if, 1); 273 #endif 274 275 splx(s); 276 return 0; 277 } 278 279 static void 280 fwe_init(void *arg) 281 { 282 struct fwe_softc *fwe = ((struct fwe_eth_softc *)arg)->fwe; 283 struct firewire_comm *fc; 284 struct ifnet *ifp = &fwe->fwe_if; 285 struct fw_xferq *xferq; 286 struct fw_xfer *xfer; 287 struct mbuf *m; 288 int i; 289 290 FWEDEBUG("initializing %s%d\n", ifp->if_name, ifp->if_unit); 291 292 /* XXX keep promiscoud mode */ 293 ifp->if_flags |= IFF_PROMISC; 294 295 fc = fwe->fd.fc; 296 #define START 0 297 if (fwe->dma_ch < 0) { 298 for (i = START; i < fc->nisodma; i ++) { 299 xferq = fc->ir[i]; 300 if ((xferq->flag & FWXFERQ_OPEN) == 0) 301 goto found; 302 } 303 printf("no free dma channel\n"); 304 return; 305 found: 306 fwe->dma_ch = i; 307 fwe->stream_ch = stream_ch; 308 fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 309 /* allocate DMA channel and init packet mode */ 310 xferq->flag |= FWXFERQ_OPEN | FWXFERQ_EXTBUF | 311 FWXFERQ_HANDLER | FWXFERQ_STREAM; 312 xferq->flag &= ~0xff; 313 xferq->flag |= fwe->stream_ch & 0xff; 314 /* register fwe_input handler */ 315 xferq->sc = (caddr_t) fwe; 316 xferq->hand = fwe_as_input; 317 xferq->bnchunk = RX_MAX_QUEUE; 318 xferq->bnpacket = 1; 319 xferq->psize = MCLBYTES; 320 xferq->queued = 0; 321 xferq->buf = NULL; 322 xferq->bulkxfer = (struct fw_bulkxfer *) malloc( 323 sizeof(struct fw_bulkxfer) * xferq->bnchunk, 324 M_FWE, M_WAITOK); 325 if (xferq->bulkxfer == NULL) { 326 printf("if_fwe: malloc failed\n"); 327 return; 328 } 329 STAILQ_INIT(&xferq->stvalid); 330 STAILQ_INIT(&xferq->stfree); 331 STAILQ_INIT(&xferq->stdma); 332 xferq->stproc = NULL; 333 for (i = 0; i < xferq->bnchunk; i ++) { 334 m = 335 #if __FreeBSD_version >= 500000 336 m_getcl(M_TRYWAIT, MT_DATA, M_PKTHDR); 337 #else 338 m_getcl(M_WAIT, MT_DATA, M_PKTHDR); 339 #endif 340 xferq->bulkxfer[i].mbuf = m; 341 if (m != NULL) { 342 m->m_len = m->m_pkthdr.len = m->m_ext.ext_size; 343 STAILQ_INSERT_TAIL(&xferq->stfree, 344 &xferq->bulkxfer[i], link); 345 } else 346 printf("fwe_as_input: m_getcl failed\n"); 347 } 348 STAILQ_INIT(&fwe->xferlist); 349 for (i = 0; i < TX_MAX_QUEUE; i++) { 350 xfer = fw_xfer_alloc(M_FWE); 351 if (xfer == NULL) 352 break; 353 xfer->spd = tx_speed; 354 xfer->fc = fwe->fd.fc; 355 xfer->retry_req = fw_asybusy; 356 xfer->sc = (caddr_t)fwe; 357 xfer->act.hand = fwe_output_callback; 358 STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 359 } 360 } else 361 xferq = fc->ir[fwe->dma_ch]; 362 363 364 /* start dma */ 365 if ((xferq->flag & FWXFERQ_RUNNING) == 0) 366 fc->irx_enable(fc, fwe->dma_ch); 367 368 ifp->if_flags |= IFF_RUNNING; 369 ifp->if_flags &= ~IFF_OACTIVE; 370 371 FWE_POLL_REGISTER(fwe_poll, fwe, ifp); 372 #if 0 373 /* attempt to start output */ 374 fwe_start(ifp); 375 #endif 376 } 377 378 379 static int 380 fwe_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 381 { 382 struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 383 struct ifstat *ifs = NULL; 384 int s, error, len; 385 386 switch (cmd) { 387 case SIOCSIFFLAGS: 388 s = splimp(); 389 if (ifp->if_flags & IFF_UP) { 390 if (!(ifp->if_flags & IFF_RUNNING)) 391 fwe_init(&fwe->eth_softc); 392 } else { 393 if (ifp->if_flags & IFF_RUNNING) 394 fwe_stop(fwe); 395 } 396 /* XXX keep promiscoud mode */ 397 ifp->if_flags |= IFF_PROMISC; 398 splx(s); 399 break; 400 case SIOCADDMULTI: 401 case SIOCDELMULTI: 402 break; 403 404 case SIOCGIFSTATUS: 405 s = splimp(); 406 ifs = (struct ifstat *)data; 407 len = strlen(ifs->ascii); 408 if (len < sizeof(ifs->ascii)) 409 snprintf(ifs->ascii + len, 410 sizeof(ifs->ascii) - len, 411 "\tch %d dma %d\n", 412 fwe->stream_ch, fwe->dma_ch); 413 splx(s); 414 break; 415 #if __FreeBSD_version >= 500000 416 default: 417 #else 418 case SIOCSIFADDR: 419 case SIOCGIFADDR: 420 case SIOCSIFMTU: 421 #endif 422 s = splimp(); 423 error = ether_ioctl(ifp, cmd, data); 424 splx(s); 425 return (error); 426 #if __FreeBSD_version < 500000 427 default: 428 return (EINVAL); 429 #endif 430 } 431 432 return (0); 433 } 434 435 static void 436 fwe_output_callback(struct fw_xfer *xfer) 437 { 438 struct fwe_softc *fwe; 439 struct ifnet *ifp; 440 int s; 441 442 fwe = (struct fwe_softc *)xfer->sc; 443 ifp = &fwe->fwe_if; 444 /* XXX error check */ 445 FWEDEBUG("resp = %d\n", xfer->resp); 446 if (xfer->resp != 0) 447 ifp->if_oerrors ++; 448 449 m_freem(xfer->mbuf); 450 xfer->send.buf = NULL; 451 fw_xfer_unload(xfer); 452 453 s = splimp(); 454 STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 455 splx(s); 456 457 /* for queue full */ 458 if (ifp->if_snd.ifq_head != NULL) 459 fwe_start(ifp); 460 } 461 462 static void 463 fwe_start(struct ifnet *ifp) 464 { 465 struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 466 int s; 467 468 FWEDEBUG("%s%d starting\n", ifp->if_name, ifp->if_unit); 469 470 if (fwe->dma_ch < 0) { 471 struct mbuf *m = NULL; 472 473 FWEDEBUG("%s%d not ready.\n", ifp->if_name, ifp->if_unit); 474 475 s = splimp(); 476 do { 477 IF_DEQUEUE(&ifp->if_snd, m); 478 if (m != NULL) 479 m_freem(m); 480 ifp->if_oerrors ++; 481 } while (m != NULL); 482 splx(s); 483 484 return; 485 } 486 487 s = splimp(); 488 ifp->if_flags |= IFF_OACTIVE; 489 490 if (ifp->if_snd.ifq_len != 0) 491 fwe_as_output(fwe, ifp); 492 493 ifp->if_flags &= ~IFF_OACTIVE; 494 splx(s); 495 } 496 497 #define HDR_LEN 4 498 #ifndef ETHER_ALIGN 499 #define ETHER_ALIGN 2 500 #endif 501 /* Async. stream output */ 502 static void 503 fwe_as_output(struct fwe_softc *fwe, struct ifnet *ifp) 504 { 505 struct mbuf *m; 506 struct fw_xfer *xfer; 507 struct fw_xferq *xferq; 508 struct fw_pkt *fp; 509 int i = 0; 510 511 xfer = NULL; 512 xferq = fwe->fd.fc->atq; 513 while (xferq->queued < xferq->maxq - 1) { 514 xfer = STAILQ_FIRST(&fwe->xferlist); 515 if (xfer == NULL) { 516 printf("if_fwe: lack of xfer\n"); 517 return; 518 } 519 IF_DEQUEUE(&ifp->if_snd, m); 520 if (m == NULL) 521 break; 522 STAILQ_REMOVE_HEAD(&fwe->xferlist, link); 523 #if __FreeBSD_version >= 500000 524 BPF_MTAP(ifp, m); 525 #else 526 if (ifp->if_bpf != NULL) 527 bpf_mtap(ifp, m); 528 #endif 529 530 /* keep ip packet alignment for alpha */ 531 M_PREPEND(m, ETHER_ALIGN, M_DONTWAIT); 532 fp = (struct fw_pkt *)&xfer->dst; /* XXX */ 533 xfer->dst = *((int32_t *)&fwe->pkt_hdr); 534 fp->mode.stream.len = m->m_pkthdr.len; 535 xfer->send.buf = (caddr_t) fp; 536 xfer->mbuf = m; 537 xfer->send.len = m->m_pkthdr.len + HDR_LEN; 538 539 if (fw_asyreq(fwe->fd.fc, -1, xfer) != 0) { 540 /* error */ 541 ifp->if_oerrors ++; 542 /* XXX set error code */ 543 fwe_output_callback(xfer); 544 } else { 545 ifp->if_opackets ++; 546 i++; 547 } 548 } 549 #if 0 550 if (i > 1) 551 printf("%d queued\n", i); 552 #endif 553 if (i > 0) 554 xferq->start(fwe->fd.fc); 555 } 556 557 /* Async. stream output */ 558 static void 559 fwe_as_input(struct fw_xferq *xferq) 560 { 561 struct mbuf *m, *m0; 562 struct ifnet *ifp; 563 struct fwe_softc *fwe; 564 struct fw_bulkxfer *sxfer; 565 struct fw_pkt *fp; 566 u_char *c; 567 #if __FreeBSD_version < 500000 568 struct ether_header *eh; 569 #endif 570 571 fwe = (struct fwe_softc *)xferq->sc; 572 ifp = &fwe->fwe_if; 573 #if 0 574 FWE_POLL_REGISTER(fwe_poll, fwe, ifp); 575 #endif 576 while ((sxfer = STAILQ_FIRST(&xferq->stvalid)) != NULL) { 577 STAILQ_REMOVE_HEAD(&xferq->stvalid, link); 578 fp = mtod(sxfer->mbuf, struct fw_pkt *); 579 if (fwe->fd.fc->irx_post != NULL) 580 fwe->fd.fc->irx_post(fwe->fd.fc, fp->mode.ld); 581 m = sxfer->mbuf; 582 583 /* insert new rbuf */ 584 sxfer->mbuf = m0 = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 585 if (m0 != NULL) { 586 m0->m_len = m0->m_pkthdr.len = m0->m_ext.ext_size; 587 STAILQ_INSERT_TAIL(&xferq->stfree, sxfer, link); 588 } else 589 printf("fwe_as_input: m_getcl failed\n"); 590 591 if (sxfer->resp != 0 || fp->mode.stream.len < 592 ETHER_ALIGN + sizeof(struct ether_header)) { 593 m_freem(m); 594 ifp->if_ierrors ++; 595 continue; 596 } 597 598 m->m_data += HDR_LEN + ETHER_ALIGN; 599 c = mtod(m, char *); 600 #if __FreeBSD_version < 500000 601 eh = (struct ether_header *)c; 602 m->m_data += sizeof(struct ether_header); 603 #endif 604 m->m_len = m->m_pkthdr.len = 605 fp->mode.stream.len - ETHER_ALIGN; 606 m->m_pkthdr.rcvif = ifp; 607 #if 0 608 FWEDEBUG("%02x %02x %02x %02x %02x %02x\n" 609 "%02x %02x %02x %02x %02x %02x\n" 610 "%02x %02x %02x %02x\n" 611 "%02x %02x %02x %02x\n" 612 "%02x %02x %02x %02x\n" 613 "%02x %02x %02x %02x\n", 614 c[0], c[1], c[2], c[3], c[4], c[5], 615 c[6], c[7], c[8], c[9], c[10], c[11], 616 c[12], c[13], c[14], c[15], 617 c[16], c[17], c[18], c[19], 618 c[20], c[21], c[22], c[23], 619 c[20], c[21], c[22], c[23] 620 ); 621 #endif 622 #if __FreeBSD_version >= 500000 623 (*ifp->if_input)(ifp, m); 624 #else 625 ether_input(ifp, eh, m); 626 #endif 627 ifp->if_ipackets ++; 628 } 629 if (STAILQ_FIRST(&xferq->stfree) != NULL) 630 fwe->fd.fc->irx_enable(fwe->fd.fc, fwe->dma_ch); 631 } 632 633 634 static devclass_t fwe_devclass; 635 636 static device_method_t fwe_methods[] = { 637 /* device interface */ 638 DEVMETHOD(device_identify, fwe_identify), 639 DEVMETHOD(device_probe, fwe_probe), 640 DEVMETHOD(device_attach, fwe_attach), 641 DEVMETHOD(device_detach, fwe_detach), 642 { 0, 0 } 643 }; 644 645 static driver_t fwe_driver = { 646 "if_fwe", 647 fwe_methods, 648 sizeof(struct fwe_softc), 649 }; 650 651 652 DRIVER_MODULE(fwe, firewire, fwe_driver, fwe_devclass, 0, 0); 653 MODULE_VERSION(fwe, 1); 654 MODULE_DEPEND(fwe, firewire, 1, 1, 1); 655