1 /*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 2002-2003 5 * Hidetoshi Shimokawa. 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 * 18 * This product includes software developed by Hidetoshi Shimokawa. 19 * 20 * 4. Neither the name of the author nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * $FreeBSD$ 37 */ 38 39 #ifdef HAVE_KERNEL_OPTION_HEADERS 40 #include "opt_device_polling.h" 41 #include "opt_inet.h" 42 #endif 43 44 #include <sys/param.h> 45 #include <sys/kernel.h> 46 #include <sys/malloc.h> 47 #include <sys/mbuf.h> 48 #include <sys/socket.h> 49 #include <sys/sockio.h> 50 #include <sys/sysctl.h> 51 #include <sys/systm.h> 52 #include <sys/module.h> 53 #include <sys/bus.h> 54 #include <machine/bus.h> 55 56 #include <net/bpf.h> 57 #include <net/ethernet.h> 58 #include <net/if.h> 59 #include <net/if_var.h> 60 #include <net/if_arp.h> 61 #include <net/if_types.h> 62 #include <net/if_vlan_var.h> 63 64 #include <dev/firewire/firewire.h> 65 #include <dev/firewire/firewirereg.h> 66 #include <dev/firewire/if_fwevar.h> 67 68 #define FWEDEBUG if (fwedebug) if_printf 69 #define TX_MAX_QUEUE (FWMAXQUEUE - 1) 70 71 /* network interface */ 72 static void fwe_start (if_t); 73 static int fwe_ioctl (if_t, u_long, caddr_t); 74 static void fwe_init (void *); 75 76 static void fwe_output_callback (struct fw_xfer *); 77 static void fwe_as_output (struct fwe_softc *, if_t); 78 static void fwe_as_input (struct fw_xferq *); 79 80 static int fwedebug = 0; 81 static int stream_ch = 1; 82 static int tx_speed = 2; 83 static int rx_queue_len = FWMAXQUEUE; 84 85 static MALLOC_DEFINE(M_FWE, "if_fwe", "Ethernet over FireWire interface"); 86 SYSCTL_INT(_debug, OID_AUTO, if_fwe_debug, CTLFLAG_RWTUN, &fwedebug, 0, ""); 87 SYSCTL_DECL(_hw_firewire); 88 static SYSCTL_NODE(_hw_firewire, OID_AUTO, fwe, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 89 "Ethernet emulation subsystem"); 90 SYSCTL_INT(_hw_firewire_fwe, OID_AUTO, stream_ch, CTLFLAG_RWTUN, &stream_ch, 0, 91 "Stream channel to use"); 92 SYSCTL_INT(_hw_firewire_fwe, OID_AUTO, tx_speed, CTLFLAG_RWTUN, &tx_speed, 0, 93 "Transmission speed"); 94 SYSCTL_INT(_hw_firewire_fwe, OID_AUTO, rx_queue_len, CTLFLAG_RWTUN, &rx_queue_len, 95 0, "Length of the receive queue"); 96 97 #ifdef DEVICE_POLLING 98 static poll_handler_t fwe_poll; 99 100 static int 101 fwe_poll(if_t ifp, enum poll_cmd cmd, int count) 102 { 103 struct fwe_softc *fwe; 104 struct firewire_comm *fc; 105 106 if (!(if_getdrvflags(ifp) & IFF_DRV_RUNNING)) 107 return (0); 108 109 fwe = ((struct fwe_eth_softc *)if_getsoftc(ifp))->fwe; 110 fc = fwe->fd.fc; 111 fc->poll(fc, (cmd == POLL_AND_CHECK_STATUS)?0:1, count); 112 return (0); 113 } 114 #endif /* DEVICE_POLLING */ 115 116 static void 117 fwe_identify(driver_t *driver, device_t parent) 118 { 119 BUS_ADD_CHILD(parent, 0, "fwe", device_get_unit(parent)); 120 } 121 122 static int 123 fwe_probe(device_t dev) 124 { 125 device_t pa; 126 127 pa = device_get_parent(dev); 128 if (device_get_unit(dev) != device_get_unit(pa)) { 129 return (ENXIO); 130 } 131 132 device_set_desc(dev, "Ethernet over FireWire"); 133 return (0); 134 } 135 136 static int 137 fwe_attach(device_t dev) 138 { 139 struct fwe_softc *fwe; 140 if_t ifp; 141 int unit, s; 142 u_char eaddr[6]; 143 struct fw_eui64 *eui; 144 145 fwe = ((struct fwe_softc *)device_get_softc(dev)); 146 unit = device_get_unit(dev); 147 148 bzero(fwe, sizeof(struct fwe_softc)); 149 mtx_init(&fwe->mtx, "fwe", NULL, MTX_DEF); 150 /* XXX */ 151 fwe->stream_ch = stream_ch; 152 fwe->dma_ch = -1; 153 154 fwe->fd.fc = device_get_ivars(dev); 155 if (tx_speed < 0) 156 tx_speed = fwe->fd.fc->speed; 157 158 fwe->fd.dev = dev; 159 fwe->fd.post_explore = NULL; 160 fwe->eth_softc.fwe = fwe; 161 162 fwe->pkt_hdr.mode.stream.tcode = FWTCODE_STREAM; 163 fwe->pkt_hdr.mode.stream.sy = 0; 164 fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 165 166 /* generate fake MAC address: first and last 3bytes from eui64 */ 167 #define LOCAL (0x02) 168 #define GROUP (0x01) 169 170 eui = &fwe->fd.fc->eui; 171 eaddr[0] = (FW_EUI64_BYTE(eui, 0) | LOCAL) & ~GROUP; 172 eaddr[1] = FW_EUI64_BYTE(eui, 1); 173 eaddr[2] = FW_EUI64_BYTE(eui, 2); 174 eaddr[3] = FW_EUI64_BYTE(eui, 5); 175 eaddr[4] = FW_EUI64_BYTE(eui, 6); 176 eaddr[5] = FW_EUI64_BYTE(eui, 7); 177 printf("if_fwe%d: Fake Ethernet address: " 178 "%02x:%02x:%02x:%02x:%02x:%02x\n", unit, 179 eaddr[0], eaddr[1], eaddr[2], eaddr[3], eaddr[4], eaddr[5]); 180 181 /* fill the rest and attach interface */ 182 ifp = fwe->eth_softc.ifp = if_alloc(IFT_ETHER); 183 if (ifp == NULL) { 184 device_printf(dev, "can not if_alloc()\n"); 185 return (ENOSPC); 186 } 187 if_setsoftc(ifp, &fwe->eth_softc); 188 189 if_initname(ifp, device_get_name(dev), unit); 190 if_setinitfn(ifp, fwe_init); 191 if_setstartfn(ifp, fwe_start); 192 if_setioctlfn(ifp, fwe_ioctl); 193 if_setflags(ifp, (IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST)); 194 if_setsendqlen(ifp, TX_MAX_QUEUE); 195 196 s = splimp(); 197 ether_ifattach(ifp, eaddr); 198 splx(s); 199 200 /* Tell the upper layer(s) we support long frames. */ 201 if_setifheaderlen(ifp, sizeof(struct ether_vlan_header)); 202 if_setcapabilitiesbit(ifp, IFCAP_VLAN_MTU | IFCAP_POLLING, 0); 203 if_setcapenablebit(ifp, IFCAP_VLAN_MTU, 0); 204 205 FWEDEBUG(ifp, "interface created\n"); 206 return 0; 207 } 208 209 static void 210 fwe_stop(struct fwe_softc *fwe) 211 { 212 struct firewire_comm *fc; 213 struct fw_xferq *xferq; 214 if_t ifp = fwe->eth_softc.ifp; 215 struct fw_xfer *xfer, *next; 216 int i; 217 218 fc = fwe->fd.fc; 219 220 if (fwe->dma_ch >= 0) { 221 xferq = fc->ir[fwe->dma_ch]; 222 223 if (xferq->flag & FWXFERQ_RUNNING) 224 fc->irx_disable(fc, fwe->dma_ch); 225 xferq->flag &= 226 ~(FWXFERQ_MODEMASK | FWXFERQ_OPEN | FWXFERQ_STREAM | 227 FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_CHTAGMASK); 228 xferq->hand = NULL; 229 230 for (i = 0; i < xferq->bnchunk; i++) 231 m_freem(xferq->bulkxfer[i].mbuf); 232 free(xferq->bulkxfer, M_FWE); 233 234 for (xfer = STAILQ_FIRST(&fwe->xferlist); xfer != NULL; 235 xfer = next) { 236 next = STAILQ_NEXT(xfer, link); 237 fw_xfer_free(xfer); 238 } 239 STAILQ_INIT(&fwe->xferlist); 240 241 xferq->bulkxfer = NULL; 242 fwe->dma_ch = -1; 243 } 244 245 if_setdrvflagbits(ifp, 0, (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)); 246 } 247 248 static int 249 fwe_detach(device_t dev) 250 { 251 struct fwe_softc *fwe; 252 if_t ifp; 253 int s; 254 255 fwe = device_get_softc(dev); 256 ifp = fwe->eth_softc.ifp; 257 258 #ifdef DEVICE_POLLING 259 if (if_getcapenable(ifp) & IFCAP_POLLING) 260 ether_poll_deregister(ifp); 261 #endif 262 s = splimp(); 263 264 fwe_stop(fwe); 265 ether_ifdetach(ifp); 266 if_free(ifp); 267 268 splx(s); 269 mtx_destroy(&fwe->mtx); 270 return 0; 271 } 272 273 static void 274 fwe_init(void *arg) 275 { 276 struct fwe_softc *fwe = ((struct fwe_eth_softc *)arg)->fwe; 277 struct firewire_comm *fc; 278 if_t ifp = fwe->eth_softc.ifp; 279 struct fw_xferq *xferq; 280 struct fw_xfer *xfer; 281 struct mbuf *m; 282 int i; 283 284 FWEDEBUG(ifp, "initializing\n"); 285 286 /* XXX keep promiscoud mode */ 287 if_setflagbits(ifp, IFF_PROMISC, 0); 288 289 fc = fwe->fd.fc; 290 if (fwe->dma_ch < 0) { 291 fwe->dma_ch = fw_open_isodma(fc, /* tx */0); 292 if (fwe->dma_ch < 0) 293 return; 294 xferq = fc->ir[fwe->dma_ch]; 295 xferq->flag |= FWXFERQ_EXTBUF | 296 FWXFERQ_HANDLER | FWXFERQ_STREAM; 297 fwe->stream_ch = stream_ch; 298 fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 299 xferq->flag &= ~0xff; 300 xferq->flag |= fwe->stream_ch & 0xff; 301 /* register fwe_input handler */ 302 xferq->sc = (caddr_t) fwe; 303 xferq->hand = fwe_as_input; 304 xferq->bnchunk = rx_queue_len; 305 xferq->bnpacket = 1; 306 xferq->psize = MCLBYTES; 307 xferq->queued = 0; 308 xferq->buf = NULL; 309 xferq->bulkxfer = (struct fw_bulkxfer *) malloc( 310 sizeof(struct fw_bulkxfer) * xferq->bnchunk, 311 M_FWE, M_WAITOK); 312 STAILQ_INIT(&xferq->stvalid); 313 STAILQ_INIT(&xferq->stfree); 314 STAILQ_INIT(&xferq->stdma); 315 xferq->stproc = NULL; 316 for (i = 0; i < xferq->bnchunk; i++) { 317 m = m_getcl(M_WAITOK, MT_DATA, M_PKTHDR); 318 xferq->bulkxfer[i].mbuf = m; 319 m->m_len = m->m_pkthdr.len = m->m_ext.ext_size; 320 STAILQ_INSERT_TAIL(&xferq->stfree, 321 &xferq->bulkxfer[i], link); 322 } 323 STAILQ_INIT(&fwe->xferlist); 324 for (i = 0; i < TX_MAX_QUEUE; i++) { 325 xfer = fw_xfer_alloc(M_FWE); 326 if (xfer == NULL) 327 break; 328 xfer->send.spd = tx_speed; 329 xfer->fc = fwe->fd.fc; 330 xfer->sc = (caddr_t)fwe; 331 xfer->hand = fwe_output_callback; 332 STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 333 } 334 } else 335 xferq = fc->ir[fwe->dma_ch]; 336 337 338 /* start dma */ 339 if ((xferq->flag & FWXFERQ_RUNNING) == 0) 340 fc->irx_enable(fc, fwe->dma_ch); 341 342 if_setdrvflagbits(ifp, IFF_DRV_RUNNING, 0); 343 if_setdrvflagbits(ifp, 0, IFF_DRV_OACTIVE); 344 345 #if 0 346 /* attempt to start output */ 347 fwe_start(ifp); 348 #endif 349 } 350 351 352 static int 353 fwe_ioctl(if_t ifp, u_long cmd, caddr_t data) 354 { 355 struct fwe_softc *fwe = ((struct fwe_eth_softc *)if_getsoftc(ifp))->fwe; 356 struct ifstat *ifs = NULL; 357 int s, error; 358 359 switch (cmd) { 360 case SIOCSIFFLAGS: 361 s = splimp(); 362 if (if_getflags(ifp) & IFF_UP) { 363 if (!(if_getdrvflags(ifp) & IFF_DRV_RUNNING)) 364 fwe_init(&fwe->eth_softc); 365 } else { 366 if (if_getdrvflags(ifp) & IFF_DRV_RUNNING) 367 fwe_stop(fwe); 368 } 369 /* XXX keep promiscoud mode */ 370 if_setflagbits(ifp, IFF_PROMISC, 0); 371 splx(s); 372 break; 373 case SIOCADDMULTI: 374 case SIOCDELMULTI: 375 break; 376 377 case SIOCGIFSTATUS: 378 s = splimp(); 379 ifs = (struct ifstat *)data; 380 snprintf(ifs->ascii, sizeof(ifs->ascii), 381 "\tch %d dma %d\n", fwe->stream_ch, fwe->dma_ch); 382 splx(s); 383 break; 384 case SIOCSIFCAP: 385 #ifdef DEVICE_POLLING 386 { 387 struct ifreq *ifr = (struct ifreq *) data; 388 struct firewire_comm *fc = fwe->fd.fc; 389 390 if (ifr->ifr_reqcap & IFCAP_POLLING && 391 !(if_getcapenable(ifp) & IFCAP_POLLING)) { 392 error = ether_poll_register(fwe_poll, ifp); 393 if (error) 394 return (error); 395 /* Disable interrupts */ 396 fc->set_intr(fc, 0); 397 if_setcapenablebit(ifp, IFCAP_POLLING, 0); 398 return (error); 399 } 400 if (!(ifr->ifr_reqcap & IFCAP_POLLING) && 401 if_getcapenable(ifp) & IFCAP_POLLING) { 402 error = ether_poll_deregister(ifp); 403 /* Enable interrupts. */ 404 fc->set_intr(fc, 1); 405 if_setcapenablebit(ifp, 0, IFCAP_POLLING); 406 return (error); 407 } 408 } 409 #endif /* DEVICE_POLLING */ 410 break; 411 default: 412 s = splimp(); 413 error = ether_ioctl(ifp, cmd, data); 414 splx(s); 415 return (error); 416 } 417 418 return (0); 419 } 420 421 static void 422 fwe_output_callback(struct fw_xfer *xfer) 423 { 424 struct fwe_softc *fwe; 425 if_t ifp; 426 int s; 427 428 fwe = (struct fwe_softc *)xfer->sc; 429 ifp = fwe->eth_softc.ifp; 430 /* XXX error check */ 431 FWEDEBUG(ifp, "resp = %d\n", xfer->resp); 432 if (xfer->resp != 0) 433 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 434 m_freem(xfer->mbuf); 435 fw_xfer_unload(xfer); 436 437 s = splimp(); 438 FWE_LOCK(fwe); 439 STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 440 FWE_UNLOCK(fwe); 441 splx(s); 442 443 /* for queue full */ 444 if (!if_sendq_empty(ifp)) 445 fwe_start(ifp); 446 } 447 448 static void 449 fwe_start(if_t ifp) 450 { 451 struct fwe_softc *fwe = ((struct fwe_eth_softc *)if_getsoftc(ifp))->fwe; 452 int s; 453 454 FWEDEBUG(ifp, "starting\n"); 455 456 if (fwe->dma_ch < 0) { 457 struct mbuf *m = NULL; 458 459 FWEDEBUG(ifp, "not ready\n"); 460 461 s = splimp(); 462 do { 463 m = if_dequeue(ifp); 464 if (m != NULL) 465 m_freem(m); 466 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 467 } while (m != NULL); 468 splx(s); 469 470 return; 471 } 472 473 s = splimp(); 474 if_setdrvflagbits(ifp, IFF_DRV_OACTIVE, 0); 475 476 if (!if_sendq_empty(ifp)) 477 fwe_as_output(fwe, ifp); 478 479 if_setdrvflagbits(ifp, 0, IFF_DRV_OACTIVE); 480 splx(s); 481 } 482 483 #define HDR_LEN 4 484 #ifndef ETHER_ALIGN 485 #define ETHER_ALIGN 2 486 #endif 487 /* Async. stream output */ 488 static void 489 fwe_as_output(struct fwe_softc *fwe, if_t ifp) 490 { 491 struct mbuf *m; 492 struct fw_xfer *xfer; 493 struct fw_xferq *xferq; 494 struct fw_pkt *fp; 495 int i = 0; 496 497 xfer = NULL; 498 xferq = fwe->fd.fc->atq; 499 while ((xferq->queued < xferq->maxq - 1) && 500 !if_sendq_empty(ifp)) { 501 FWE_LOCK(fwe); 502 xfer = STAILQ_FIRST(&fwe->xferlist); 503 if (xfer == NULL) { 504 #if 0 505 printf("if_fwe: lack of xfer\n"); 506 #endif 507 FWE_UNLOCK(fwe); 508 break; 509 } 510 STAILQ_REMOVE_HEAD(&fwe->xferlist, link); 511 FWE_UNLOCK(fwe); 512 513 m = if_dequeue(ifp); 514 if (m == NULL) { 515 FWE_LOCK(fwe); 516 STAILQ_INSERT_HEAD(&fwe->xferlist, xfer, link); 517 FWE_UNLOCK(fwe); 518 break; 519 } 520 BPF_MTAP(ifp, m); 521 522 /* keep ip packet alignment for alpha */ 523 M_PREPEND(m, ETHER_ALIGN, M_NOWAIT); 524 fp = &xfer->send.hdr; 525 *(uint32_t *)&xfer->send.hdr = *(int32_t *)&fwe->pkt_hdr; 526 fp->mode.stream.len = m->m_pkthdr.len; 527 xfer->mbuf = m; 528 xfer->send.pay_len = m->m_pkthdr.len; 529 530 if (fw_asyreq(fwe->fd.fc, -1, xfer) != 0) { 531 /* error */ 532 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 533 /* XXX set error code */ 534 fwe_output_callback(xfer); 535 } else { 536 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 537 i++; 538 } 539 } 540 #if 0 541 if (i > 1) 542 printf("%d queued\n", i); 543 #endif 544 if (i > 0) 545 xferq->start(fwe->fd.fc); 546 } 547 548 /* Async. stream output */ 549 static void 550 fwe_as_input(struct fw_xferq *xferq) 551 { 552 struct mbuf *m, *m0; 553 if_t ifp; 554 struct fwe_softc *fwe; 555 struct fw_bulkxfer *sxfer; 556 struct fw_pkt *fp; 557 #if 0 558 u_char *c; 559 #endif 560 561 fwe = (struct fwe_softc *)xferq->sc; 562 ifp = fwe->eth_softc.ifp; 563 564 /* We do not need a lock here because the bottom half is serialized */ 565 while ((sxfer = STAILQ_FIRST(&xferq->stvalid)) != NULL) { 566 STAILQ_REMOVE_HEAD(&xferq->stvalid, link); 567 fp = mtod(sxfer->mbuf, struct fw_pkt *); 568 if (fwe->fd.fc->irx_post != NULL) 569 fwe->fd.fc->irx_post(fwe->fd.fc, fp->mode.ld); 570 m = sxfer->mbuf; 571 572 /* insert new rbuf */ 573 sxfer->mbuf = m0 = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 574 if (m0 != NULL) { 575 m0->m_len = m0->m_pkthdr.len = m0->m_ext.ext_size; 576 STAILQ_INSERT_TAIL(&xferq->stfree, sxfer, link); 577 } else 578 printf("%s: m_getcl failed\n", __FUNCTION__); 579 580 if (sxfer->resp != 0 || fp->mode.stream.len < 581 ETHER_ALIGN + sizeof(struct ether_header)) { 582 m_freem(m); 583 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 584 continue; 585 } 586 587 m->m_data += HDR_LEN + ETHER_ALIGN; 588 #if 0 589 c = mtod(m, u_char *); 590 #endif 591 m->m_len = m->m_pkthdr.len = fp->mode.stream.len - ETHER_ALIGN; 592 m->m_pkthdr.rcvif = ifp; 593 #if 0 594 FWEDEBUG(ifp, "%02x %02x %02x %02x %02x %02x\n" 595 "%02x %02x %02x %02x %02x %02x\n" 596 "%02x %02x %02x %02x\n" 597 "%02x %02x %02x %02x\n" 598 "%02x %02x %02x %02x\n" 599 "%02x %02x %02x %02x\n", 600 c[0], c[1], c[2], c[3], c[4], c[5], 601 c[6], c[7], c[8], c[9], c[10], c[11], 602 c[12], c[13], c[14], c[15], 603 c[16], c[17], c[18], c[19], 604 c[20], c[21], c[22], c[23], 605 c[20], c[21], c[22], c[23] 606 ); 607 #endif 608 if_input(ifp, m); 609 if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1); 610 } 611 if (STAILQ_FIRST(&xferq->stfree) != NULL) 612 fwe->fd.fc->irx_enable(fwe->fd.fc, fwe->dma_ch); 613 } 614 615 616 static device_method_t fwe_methods[] = { 617 /* device interface */ 618 DEVMETHOD(device_identify, fwe_identify), 619 DEVMETHOD(device_probe, fwe_probe), 620 DEVMETHOD(device_attach, fwe_attach), 621 DEVMETHOD(device_detach, fwe_detach), 622 { 0, 0 } 623 }; 624 625 static driver_t fwe_driver = { 626 "fwe", 627 fwe_methods, 628 sizeof(struct fwe_softc), 629 }; 630 631 632 DRIVER_MODULE(fwe, firewire, fwe_driver, 0, 0); 633 MODULE_VERSION(fwe, 1); 634 MODULE_DEPEND(fwe, firewire, 1, 1, 1); 635