1 /*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 1997, 1998, 1999, 2000 5 * Bill Paul <wpaul@ee.columbia.edu>. 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 Bill Paul. 18 * 4. Neither the name of the author nor the names of any co-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 Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 32 * THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 /* 36 * CATC USB-EL1210A USB to ethernet driver. Used in the CATC Netmate 37 * adapters and others. 38 * 39 * Written by Bill Paul <wpaul@ee.columbia.edu> 40 * Electrical Engineering Department 41 * Columbia University, New York City 42 */ 43 44 /* 45 * The CATC USB-EL1210A provides USB ethernet support at 10Mbps. The 46 * RX filter uses a 512-bit multicast hash table, single perfect entry 47 * for the station address, and promiscuous mode. Unlike the ADMtek 48 * and KLSI chips, the CATC ASIC supports read and write combining 49 * mode where multiple packets can be transferred using a single bulk 50 * transaction, which helps performance a great deal. 51 */ 52 53 #include <sys/stdint.h> 54 #include <sys/stddef.h> 55 #include <sys/param.h> 56 #include <sys/queue.h> 57 #include <sys/types.h> 58 #include <sys/systm.h> 59 #include <sys/socket.h> 60 #include <sys/kernel.h> 61 #include <sys/bus.h> 62 #include <sys/module.h> 63 #include <sys/lock.h> 64 #include <sys/mutex.h> 65 #include <sys/condvar.h> 66 #include <sys/sysctl.h> 67 #include <sys/sx.h> 68 #include <sys/unistd.h> 69 #include <sys/callout.h> 70 #include <sys/malloc.h> 71 #include <sys/priv.h> 72 73 #include <net/if.h> 74 #include <net/if_var.h> 75 76 #include <dev/usb/usb.h> 77 #include <dev/usb/usbdi.h> 78 #include <dev/usb/usbdi_util.h> 79 #include "usbdevs.h" 80 81 #define USB_DEBUG_VAR cue_debug 82 #include <dev/usb/usb_debug.h> 83 #include <dev/usb/usb_process.h> 84 85 #include <dev/usb/net/usb_ethernet.h> 86 #include <dev/usb/net/if_cuereg.h> 87 88 /* 89 * Various supported device vendors/products. 90 */ 91 92 /* Belkin F5U111 adapter covered by NETMATE entry */ 93 94 static const STRUCT_USB_HOST_ID cue_devs[] = { 95 #define CUE_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 96 CUE_DEV(CATC, NETMATE), 97 CUE_DEV(CATC, NETMATE2), 98 CUE_DEV(SMARTBRIDGES, SMARTLINK), 99 #undef CUE_DEV 100 }; 101 102 /* prototypes */ 103 104 static device_probe_t cue_probe; 105 static device_attach_t cue_attach; 106 static device_detach_t cue_detach; 107 108 static usb_callback_t cue_bulk_read_callback; 109 static usb_callback_t cue_bulk_write_callback; 110 111 static uether_fn_t cue_attach_post; 112 static uether_fn_t cue_init; 113 static uether_fn_t cue_stop; 114 static uether_fn_t cue_start; 115 static uether_fn_t cue_tick; 116 static uether_fn_t cue_setmulti; 117 static uether_fn_t cue_setpromisc; 118 119 static uint8_t cue_csr_read_1(struct cue_softc *, uint16_t); 120 static uint16_t cue_csr_read_2(struct cue_softc *, uint8_t); 121 static int cue_csr_write_1(struct cue_softc *, uint16_t, uint16_t); 122 static int cue_mem(struct cue_softc *, uint8_t, uint16_t, void *, int); 123 static int cue_getmac(struct cue_softc *, void *); 124 static uint32_t cue_mchash(const uint8_t *); 125 static void cue_reset(struct cue_softc *); 126 127 #ifdef USB_DEBUG 128 static int cue_debug = 0; 129 130 static SYSCTL_NODE(_hw_usb, OID_AUTO, cue, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 131 "USB cue"); 132 SYSCTL_INT(_hw_usb_cue, OID_AUTO, debug, CTLFLAG_RWTUN, &cue_debug, 0, 133 "Debug level"); 134 #endif 135 136 static const struct usb_config cue_config[CUE_N_TRANSFER] = { 137 [CUE_BULK_DT_WR] = { 138 .type = UE_BULK, 139 .endpoint = UE_ADDR_ANY, 140 .direction = UE_DIR_OUT, 141 .bufsize = (MCLBYTES + 2), 142 .flags = {.pipe_bof = 1,}, 143 .callback = cue_bulk_write_callback, 144 .timeout = 10000, /* 10 seconds */ 145 }, 146 147 [CUE_BULK_DT_RD] = { 148 .type = UE_BULK, 149 .endpoint = UE_ADDR_ANY, 150 .direction = UE_DIR_IN, 151 .bufsize = (MCLBYTES + 2), 152 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 153 .callback = cue_bulk_read_callback, 154 }, 155 }; 156 157 static device_method_t cue_methods[] = { 158 /* Device interface */ 159 DEVMETHOD(device_probe, cue_probe), 160 DEVMETHOD(device_attach, cue_attach), 161 DEVMETHOD(device_detach, cue_detach), 162 163 DEVMETHOD_END 164 }; 165 166 static driver_t cue_driver = { 167 .name = "cue", 168 .methods = cue_methods, 169 .size = sizeof(struct cue_softc), 170 }; 171 172 DRIVER_MODULE(cue, uhub, cue_driver, NULL, NULL); 173 MODULE_DEPEND(cue, uether, 1, 1, 1); 174 MODULE_DEPEND(cue, usb, 1, 1, 1); 175 MODULE_DEPEND(cue, ether, 1, 1, 1); 176 MODULE_VERSION(cue, 1); 177 USB_PNP_HOST_INFO(cue_devs); 178 179 static const struct usb_ether_methods cue_ue_methods = { 180 .ue_attach_post = cue_attach_post, 181 .ue_start = cue_start, 182 .ue_init = cue_init, 183 .ue_stop = cue_stop, 184 .ue_tick = cue_tick, 185 .ue_setmulti = cue_setmulti, 186 .ue_setpromisc = cue_setpromisc, 187 }; 188 189 #define CUE_SETBIT(sc, reg, x) \ 190 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) | (x)) 191 192 #define CUE_CLRBIT(sc, reg, x) \ 193 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) & ~(x)) 194 195 static uint8_t 196 cue_csr_read_1(struct cue_softc *sc, uint16_t reg) 197 { 198 struct usb_device_request req; 199 uint8_t val; 200 201 req.bmRequestType = UT_READ_VENDOR_DEVICE; 202 req.bRequest = CUE_CMD_READREG; 203 USETW(req.wValue, 0); 204 USETW(req.wIndex, reg); 205 USETW(req.wLength, 1); 206 207 if (uether_do_request(&sc->sc_ue, &req, &val, 1000)) { 208 /* ignore any errors */ 209 } 210 return (val); 211 } 212 213 static uint16_t 214 cue_csr_read_2(struct cue_softc *sc, uint8_t reg) 215 { 216 struct usb_device_request req; 217 uint16_t val; 218 219 req.bmRequestType = UT_READ_VENDOR_DEVICE; 220 req.bRequest = CUE_CMD_READREG; 221 USETW(req.wValue, 0); 222 USETW(req.wIndex, reg); 223 USETW(req.wLength, 2); 224 225 (void)uether_do_request(&sc->sc_ue, &req, &val, 1000); 226 return (le16toh(val)); 227 } 228 229 static int 230 cue_csr_write_1(struct cue_softc *sc, uint16_t reg, uint16_t val) 231 { 232 struct usb_device_request req; 233 234 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 235 req.bRequest = CUE_CMD_WRITEREG; 236 USETW(req.wValue, val); 237 USETW(req.wIndex, reg); 238 USETW(req.wLength, 0); 239 240 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 241 } 242 243 static int 244 cue_mem(struct cue_softc *sc, uint8_t cmd, uint16_t addr, void *buf, int len) 245 { 246 struct usb_device_request req; 247 248 if (cmd == CUE_CMD_READSRAM) 249 req.bmRequestType = UT_READ_VENDOR_DEVICE; 250 else 251 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 252 req.bRequest = cmd; 253 USETW(req.wValue, 0); 254 USETW(req.wIndex, addr); 255 USETW(req.wLength, len); 256 257 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 258 } 259 260 static int 261 cue_getmac(struct cue_softc *sc, void *buf) 262 { 263 struct usb_device_request req; 264 265 req.bmRequestType = UT_READ_VENDOR_DEVICE; 266 req.bRequest = CUE_CMD_GET_MACADDR; 267 USETW(req.wValue, 0); 268 USETW(req.wIndex, 0); 269 USETW(req.wLength, ETHER_ADDR_LEN); 270 271 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 272 } 273 274 #define CUE_BITS 9 275 276 static uint32_t 277 cue_mchash(const uint8_t *addr) 278 { 279 uint32_t crc; 280 281 /* Compute CRC for the address value. */ 282 crc = ether_crc32_le(addr, ETHER_ADDR_LEN); 283 284 return (crc & ((1 << CUE_BITS) - 1)); 285 } 286 287 static void 288 cue_setpromisc(struct usb_ether *ue) 289 { 290 struct cue_softc *sc = uether_getsc(ue); 291 if_t ifp = uether_getifp(ue); 292 293 CUE_LOCK_ASSERT(sc, MA_OWNED); 294 295 /* if we want promiscuous mode, set the allframes bit */ 296 if (if_getflags(ifp) & IFF_PROMISC) 297 CUE_SETBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 298 else 299 CUE_CLRBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 300 301 /* write multicast hash-bits */ 302 cue_setmulti(ue); 303 } 304 305 static u_int 306 cue_hash_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt) 307 { 308 uint8_t *hashtbl = arg; 309 uint32_t h; 310 311 h = cue_mchash(LLADDR(sdl)); 312 hashtbl[h >> 3] |= 1 << (h & 0x7); 313 314 return (1); 315 } 316 317 static void 318 cue_setmulti(struct usb_ether *ue) 319 { 320 struct cue_softc *sc = uether_getsc(ue); 321 if_t ifp = uether_getifp(ue); 322 uint32_t h, i; 323 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 324 325 CUE_LOCK_ASSERT(sc, MA_OWNED); 326 327 if (if_getflags(ifp) & IFF_ALLMULTI || if_getflags(ifp) & IFF_PROMISC) { 328 for (i = 0; i < 8; i++) 329 hashtbl[i] = 0xff; 330 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, 331 &hashtbl, 8); 332 return; 333 } 334 335 /* now program new ones */ 336 if_foreach_llmaddr(ifp, cue_hash_maddr, hashtbl); 337 338 /* 339 * Also include the broadcast address in the filter 340 * so we can receive broadcast frames. 341 */ 342 if (if_getflags(ifp) & IFF_BROADCAST) { 343 h = cue_mchash(if_getbroadcastaddr(ifp)); 344 hashtbl[h >> 3] |= 1 << (h & 0x7); 345 } 346 347 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, &hashtbl, 8); 348 } 349 350 static void 351 cue_reset(struct cue_softc *sc) 352 { 353 struct usb_device_request req; 354 355 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 356 req.bRequest = CUE_CMD_RESET; 357 USETW(req.wValue, 0); 358 USETW(req.wIndex, 0); 359 USETW(req.wLength, 0); 360 361 if (uether_do_request(&sc->sc_ue, &req, NULL, 1000)) { 362 /* ignore any errors */ 363 } 364 365 /* 366 * wait a little while for the chip to get its brains in order: 367 */ 368 uether_pause(&sc->sc_ue, hz / 100); 369 } 370 371 static void 372 cue_attach_post(struct usb_ether *ue) 373 { 374 struct cue_softc *sc = uether_getsc(ue); 375 376 cue_getmac(sc, ue->ue_eaddr); 377 } 378 379 static int 380 cue_probe(device_t dev) 381 { 382 struct usb_attach_arg *uaa = device_get_ivars(dev); 383 384 if (uaa->usb_mode != USB_MODE_HOST) 385 return (ENXIO); 386 if (uaa->info.bConfigIndex != CUE_CONFIG_IDX) 387 return (ENXIO); 388 if (uaa->info.bIfaceIndex != CUE_IFACE_IDX) 389 return (ENXIO); 390 391 return (usbd_lookup_id_by_uaa(cue_devs, sizeof(cue_devs), uaa)); 392 } 393 394 /* 395 * Attach the interface. Allocate softc structures, do ifmedia 396 * setup and ethernet/BPF attach. 397 */ 398 static int 399 cue_attach(device_t dev) 400 { 401 struct usb_attach_arg *uaa = device_get_ivars(dev); 402 struct cue_softc *sc = device_get_softc(dev); 403 struct usb_ether *ue = &sc->sc_ue; 404 uint8_t iface_index; 405 int error; 406 407 device_set_usb_desc(dev); 408 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 409 410 iface_index = CUE_IFACE_IDX; 411 error = usbd_transfer_setup(uaa->device, &iface_index, 412 sc->sc_xfer, cue_config, CUE_N_TRANSFER, sc, &sc->sc_mtx); 413 if (error) { 414 device_printf(dev, "allocating USB transfers failed\n"); 415 goto detach; 416 } 417 418 ue->ue_sc = sc; 419 ue->ue_dev = dev; 420 ue->ue_udev = uaa->device; 421 ue->ue_mtx = &sc->sc_mtx; 422 ue->ue_methods = &cue_ue_methods; 423 424 error = uether_ifattach(ue); 425 if (error) { 426 device_printf(dev, "could not attach interface\n"); 427 goto detach; 428 } 429 return (0); /* success */ 430 431 detach: 432 cue_detach(dev); 433 return (ENXIO); /* failure */ 434 } 435 436 static int 437 cue_detach(device_t dev) 438 { 439 struct cue_softc *sc = device_get_softc(dev); 440 struct usb_ether *ue = &sc->sc_ue; 441 442 usbd_transfer_unsetup(sc->sc_xfer, CUE_N_TRANSFER); 443 uether_ifdetach(ue); 444 mtx_destroy(&sc->sc_mtx); 445 446 return (0); 447 } 448 449 static void 450 cue_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 451 { 452 struct cue_softc *sc = usbd_xfer_softc(xfer); 453 struct usb_ether *ue = &sc->sc_ue; 454 if_t ifp = uether_getifp(ue); 455 struct usb_page_cache *pc; 456 uint8_t buf[2]; 457 int len; 458 int actlen; 459 460 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 461 462 switch (USB_GET_STATE(xfer)) { 463 case USB_ST_TRANSFERRED: 464 465 if (actlen <= (int)(2 + sizeof(struct ether_header))) { 466 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 467 goto tr_setup; 468 } 469 pc = usbd_xfer_get_frame(xfer, 0); 470 usbd_copy_out(pc, 0, buf, 2); 471 actlen -= 2; 472 len = buf[0] | (buf[1] << 8); 473 len = min(actlen, len); 474 475 uether_rxbuf(ue, pc, 2, len); 476 /* FALLTHROUGH */ 477 case USB_ST_SETUP: 478 tr_setup: 479 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 480 usbd_transfer_submit(xfer); 481 uether_rxflush(ue); 482 return; 483 484 default: /* Error */ 485 DPRINTF("bulk read error, %s\n", 486 usbd_errstr(error)); 487 488 if (error != USB_ERR_CANCELLED) { 489 /* try to clear stall first */ 490 usbd_xfer_set_stall(xfer); 491 goto tr_setup; 492 } 493 return; 494 } 495 } 496 497 static void 498 cue_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 499 { 500 struct cue_softc *sc = usbd_xfer_softc(xfer); 501 if_t ifp = uether_getifp(&sc->sc_ue); 502 struct usb_page_cache *pc; 503 struct mbuf *m; 504 uint8_t buf[2]; 505 506 switch (USB_GET_STATE(xfer)) { 507 case USB_ST_TRANSFERRED: 508 DPRINTFN(11, "transfer complete\n"); 509 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 510 511 /* FALLTHROUGH */ 512 case USB_ST_SETUP: 513 tr_setup: 514 m = if_dequeue(ifp); 515 516 if (m == NULL) 517 return; 518 if (m->m_pkthdr.len > MCLBYTES) 519 m->m_pkthdr.len = MCLBYTES; 520 usbd_xfer_set_frame_len(xfer, 0, (m->m_pkthdr.len + 2)); 521 522 /* the first two bytes are the frame length */ 523 524 buf[0] = (uint8_t)(m->m_pkthdr.len); 525 buf[1] = (uint8_t)(m->m_pkthdr.len >> 8); 526 527 pc = usbd_xfer_get_frame(xfer, 0); 528 usbd_copy_in(pc, 0, buf, 2); 529 usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len); 530 531 /* 532 * If there's a BPF listener, bounce a copy of this frame 533 * to him. 534 */ 535 BPF_MTAP(ifp, m); 536 537 m_freem(m); 538 539 usbd_transfer_submit(xfer); 540 541 return; 542 543 default: /* Error */ 544 DPRINTFN(11, "transfer error, %s\n", 545 usbd_errstr(error)); 546 547 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 548 549 if (error != USB_ERR_CANCELLED) { 550 /* try to clear stall first */ 551 usbd_xfer_set_stall(xfer); 552 goto tr_setup; 553 } 554 return; 555 } 556 } 557 558 static void 559 cue_tick(struct usb_ether *ue) 560 { 561 struct cue_softc *sc = uether_getsc(ue); 562 if_t ifp = uether_getifp(ue); 563 564 CUE_LOCK_ASSERT(sc, MA_OWNED); 565 566 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, cue_csr_read_2(sc, CUE_TX_SINGLECOLL)); 567 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, cue_csr_read_2(sc, CUE_TX_MULTICOLL)); 568 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, cue_csr_read_2(sc, CUE_TX_EXCESSCOLL)); 569 570 if (cue_csr_read_2(sc, CUE_RX_FRAMEERR)) 571 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 572 } 573 574 static void 575 cue_start(struct usb_ether *ue) 576 { 577 struct cue_softc *sc = uether_getsc(ue); 578 579 /* 580 * start the USB transfers, if not already started: 581 */ 582 usbd_transfer_start(sc->sc_xfer[CUE_BULK_DT_RD]); 583 usbd_transfer_start(sc->sc_xfer[CUE_BULK_DT_WR]); 584 } 585 586 static void 587 cue_init(struct usb_ether *ue) 588 { 589 struct cue_softc *sc = uether_getsc(ue); 590 if_t ifp = uether_getifp(ue); 591 int i; 592 593 CUE_LOCK_ASSERT(sc, MA_OWNED); 594 595 /* 596 * Cancel pending I/O and free all RX/TX buffers. 597 */ 598 cue_stop(ue); 599 #if 0 600 cue_reset(sc); 601 #endif 602 /* Set MAC address */ 603 for (i = 0; i < ETHER_ADDR_LEN; i++) 604 cue_csr_write_1(sc, CUE_PAR0 - i, if_getlladdr(ifp)[i]); 605 606 /* Enable RX logic. */ 607 cue_csr_write_1(sc, CUE_ETHCTL, CUE_ETHCTL_RX_ON | CUE_ETHCTL_MCAST_ON); 608 609 /* Load the multicast filter */ 610 cue_setpromisc(ue); 611 612 /* 613 * Set the number of RX and TX buffers that we want 614 * to reserve inside the ASIC. 615 */ 616 cue_csr_write_1(sc, CUE_RX_BUFPKTS, CUE_RX_FRAMES); 617 cue_csr_write_1(sc, CUE_TX_BUFPKTS, CUE_TX_FRAMES); 618 619 /* Set advanced operation modes. */ 620 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 621 CUE_AOP_EMBED_RXLEN | 0x01);/* 1 wait state */ 622 623 /* Program the LED operation. */ 624 cue_csr_write_1(sc, CUE_LEDCTL, CUE_LEDCTL_FOLLOW_LINK); 625 626 usbd_xfer_set_stall(sc->sc_xfer[CUE_BULK_DT_WR]); 627 628 if_setdrvflagbits(ifp, IFF_DRV_RUNNING, 0); 629 cue_start(ue); 630 } 631 632 /* 633 * Stop the adapter and free any mbufs allocated to the 634 * RX and TX lists. 635 */ 636 static void 637 cue_stop(struct usb_ether *ue) 638 { 639 struct cue_softc *sc = uether_getsc(ue); 640 if_t ifp = uether_getifp(ue); 641 642 CUE_LOCK_ASSERT(sc, MA_OWNED); 643 644 if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING); 645 646 /* 647 * stop all the transfers, if not already stopped: 648 */ 649 usbd_transfer_stop(sc->sc_xfer[CUE_BULK_DT_WR]); 650 usbd_transfer_stop(sc->sc_xfer[CUE_BULK_DT_RD]); 651 652 cue_csr_write_1(sc, CUE_ETHCTL, 0); 653 cue_reset(sc); 654 } 655