if_cue.c revision 271832
1/*- 2 * Copyright (c) 1997, 1998, 1999, 2000 3 * Bill Paul <wpaul@ee.columbia.edu>. 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 * This product includes software developed by Bill Paul. 16 * 4. Neither the name of the author nor the names of any co-contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 30 * THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33#include <sys/cdefs.h> 34__FBSDID("$FreeBSD: head/sys/dev/usb/net/if_cue.c 271832 2014-09-18 21:09:22Z glebius $"); 35 36/* 37 * CATC USB-EL1210A USB to ethernet driver. Used in the CATC Netmate 38 * adapters and others. 39 * 40 * Written by Bill Paul <wpaul@ee.columbia.edu> 41 * Electrical Engineering Department 42 * Columbia University, New York City 43 */ 44 45/* 46 * The CATC USB-EL1210A provides USB ethernet support at 10Mbps. The 47 * RX filter uses a 512-bit multicast hash table, single perfect entry 48 * for the station address, and promiscuous mode. Unlike the ADMtek 49 * and KLSI chips, the CATC ASIC supports read and write combining 50 * mode where multiple packets can be transfered using a single bulk 51 * transaction, which helps performance a great deal. 52 */ 53 54#include <sys/stdint.h> 55#include <sys/stddef.h> 56#include <sys/param.h> 57#include <sys/queue.h> 58#include <sys/types.h> 59#include <sys/systm.h> 60#include <sys/socket.h> 61#include <sys/kernel.h> 62#include <sys/bus.h> 63#include <sys/module.h> 64#include <sys/lock.h> 65#include <sys/mutex.h> 66#include <sys/condvar.h> 67#include <sys/sysctl.h> 68#include <sys/sx.h> 69#include <sys/unistd.h> 70#include <sys/callout.h> 71#include <sys/malloc.h> 72#include <sys/priv.h> 73 74#include <net/if.h> 75#include <net/if_var.h> 76 77#include <dev/usb/usb.h> 78#include <dev/usb/usbdi.h> 79#include <dev/usb/usbdi_util.h> 80#include "usbdevs.h" 81 82#define USB_DEBUG_VAR cue_debug 83#include <dev/usb/usb_debug.h> 84#include <dev/usb/usb_process.h> 85 86#include <dev/usb/net/usb_ethernet.h> 87#include <dev/usb/net/if_cuereg.h> 88 89/* 90 * Various supported device vendors/products. 91 */ 92 93/* Belkin F5U111 adapter covered by NETMATE entry */ 94 95static const STRUCT_USB_HOST_ID cue_devs[] = { 96#define CUE_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 97 CUE_DEV(CATC, NETMATE), 98 CUE_DEV(CATC, NETMATE2), 99 CUE_DEV(SMARTBRIDGES, SMARTLINK), 100#undef CUE_DEV 101}; 102 103/* prototypes */ 104 105static device_probe_t cue_probe; 106static device_attach_t cue_attach; 107static device_detach_t cue_detach; 108 109static usb_callback_t cue_bulk_read_callback; 110static usb_callback_t cue_bulk_write_callback; 111 112static uether_fn_t cue_attach_post; 113static uether_fn_t cue_init; 114static uether_fn_t cue_stop; 115static uether_fn_t cue_start; 116static uether_fn_t cue_tick; 117static uether_fn_t cue_setmulti; 118static uether_fn_t cue_setpromisc; 119 120static uint8_t cue_csr_read_1(struct cue_softc *, uint16_t); 121static uint16_t cue_csr_read_2(struct cue_softc *, uint8_t); 122static int cue_csr_write_1(struct cue_softc *, uint16_t, uint16_t); 123static int cue_mem(struct cue_softc *, uint8_t, uint16_t, void *, int); 124static int cue_getmac(struct cue_softc *, void *); 125static uint32_t cue_mchash(const uint8_t *); 126static void cue_reset(struct cue_softc *); 127 128#ifdef USB_DEBUG 129static int cue_debug = 0; 130 131static SYSCTL_NODE(_hw_usb, OID_AUTO, cue, CTLFLAG_RW, 0, "USB cue"); 132SYSCTL_INT(_hw_usb_cue, OID_AUTO, debug, CTLFLAG_RW, &cue_debug, 0, 133 "Debug level"); 134#endif 135 136static const struct usb_config cue_config[CUE_N_TRANSFER] = { 137 138 [CUE_BULK_DT_WR] = { 139 .type = UE_BULK, 140 .endpoint = UE_ADDR_ANY, 141 .direction = UE_DIR_OUT, 142 .bufsize = (MCLBYTES + 2), 143 .flags = {.pipe_bof = 1,}, 144 .callback = cue_bulk_write_callback, 145 .timeout = 10000, /* 10 seconds */ 146 }, 147 148 [CUE_BULK_DT_RD] = { 149 .type = UE_BULK, 150 .endpoint = UE_ADDR_ANY, 151 .direction = UE_DIR_IN, 152 .bufsize = (MCLBYTES + 2), 153 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 154 .callback = cue_bulk_read_callback, 155 }, 156}; 157 158static device_method_t cue_methods[] = { 159 /* Device interface */ 160 DEVMETHOD(device_probe, cue_probe), 161 DEVMETHOD(device_attach, cue_attach), 162 DEVMETHOD(device_detach, cue_detach), 163 164 DEVMETHOD_END 165}; 166 167static driver_t cue_driver = { 168 .name = "cue", 169 .methods = cue_methods, 170 .size = sizeof(struct cue_softc), 171}; 172 173static devclass_t cue_devclass; 174 175DRIVER_MODULE(cue, uhub, cue_driver, cue_devclass, NULL, 0); 176MODULE_DEPEND(cue, uether, 1, 1, 1); 177MODULE_DEPEND(cue, usb, 1, 1, 1); 178MODULE_DEPEND(cue, ether, 1, 1, 1); 179MODULE_VERSION(cue, 1); 180 181static const struct usb_ether_methods cue_ue_methods = { 182 .ue_attach_post = cue_attach_post, 183 .ue_start = cue_start, 184 .ue_init = cue_init, 185 .ue_stop = cue_stop, 186 .ue_tick = cue_tick, 187 .ue_setmulti = cue_setmulti, 188 .ue_setpromisc = cue_setpromisc, 189}; 190 191#define CUE_SETBIT(sc, reg, x) \ 192 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) | (x)) 193 194#define CUE_CLRBIT(sc, reg, x) \ 195 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) & ~(x)) 196 197static uint8_t 198cue_csr_read_1(struct cue_softc *sc, uint16_t reg) 199{ 200 struct usb_device_request req; 201 uint8_t val; 202 203 req.bmRequestType = UT_READ_VENDOR_DEVICE; 204 req.bRequest = CUE_CMD_READREG; 205 USETW(req.wValue, 0); 206 USETW(req.wIndex, reg); 207 USETW(req.wLength, 1); 208 209 if (uether_do_request(&sc->sc_ue, &req, &val, 1000)) { 210 /* ignore any errors */ 211 } 212 return (val); 213} 214 215static uint16_t 216cue_csr_read_2(struct cue_softc *sc, uint8_t reg) 217{ 218 struct usb_device_request req; 219 uint16_t val; 220 221 req.bmRequestType = UT_READ_VENDOR_DEVICE; 222 req.bRequest = CUE_CMD_READREG; 223 USETW(req.wValue, 0); 224 USETW(req.wIndex, reg); 225 USETW(req.wLength, 2); 226 227 (void)uether_do_request(&sc->sc_ue, &req, &val, 1000); 228 return (le16toh(val)); 229} 230 231static int 232cue_csr_write_1(struct cue_softc *sc, uint16_t reg, uint16_t val) 233{ 234 struct usb_device_request req; 235 236 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 237 req.bRequest = CUE_CMD_WRITEREG; 238 USETW(req.wValue, val); 239 USETW(req.wIndex, reg); 240 USETW(req.wLength, 0); 241 242 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 243} 244 245static int 246cue_mem(struct cue_softc *sc, uint8_t cmd, uint16_t addr, void *buf, int len) 247{ 248 struct usb_device_request req; 249 250 if (cmd == CUE_CMD_READSRAM) 251 req.bmRequestType = UT_READ_VENDOR_DEVICE; 252 else 253 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 254 req.bRequest = cmd; 255 USETW(req.wValue, 0); 256 USETW(req.wIndex, addr); 257 USETW(req.wLength, len); 258 259 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 260} 261 262static int 263cue_getmac(struct cue_softc *sc, void *buf) 264{ 265 struct usb_device_request req; 266 267 req.bmRequestType = UT_READ_VENDOR_DEVICE; 268 req.bRequest = CUE_CMD_GET_MACADDR; 269 USETW(req.wValue, 0); 270 USETW(req.wIndex, 0); 271 USETW(req.wLength, ETHER_ADDR_LEN); 272 273 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 274} 275 276#define CUE_BITS 9 277 278static uint32_t 279cue_mchash(const uint8_t *addr) 280{ 281 uint32_t crc; 282 283 /* Compute CRC for the address value. */ 284 crc = ether_crc32_le(addr, ETHER_ADDR_LEN); 285 286 return (crc & ((1 << CUE_BITS) - 1)); 287} 288 289static void 290cue_setpromisc(struct usb_ether *ue) 291{ 292 struct cue_softc *sc = uether_getsc(ue); 293 struct ifnet *ifp = uether_getifp(ue); 294 295 CUE_LOCK_ASSERT(sc, MA_OWNED); 296 297 /* if we want promiscuous mode, set the allframes bit */ 298 if (ifp->if_flags & IFF_PROMISC) 299 CUE_SETBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 300 else 301 CUE_CLRBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 302 303 /* write multicast hash-bits */ 304 cue_setmulti(ue); 305} 306 307static void 308cue_setmulti(struct usb_ether *ue) 309{ 310 struct cue_softc *sc = uether_getsc(ue); 311 struct ifnet *ifp = uether_getifp(ue); 312 struct ifmultiaddr *ifma; 313 uint32_t h = 0, i; 314 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 315 316 CUE_LOCK_ASSERT(sc, MA_OWNED); 317 318 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 319 for (i = 0; i < 8; i++) 320 hashtbl[i] = 0xff; 321 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, 322 &hashtbl, 8); 323 return; 324 } 325 326 /* now program new ones */ 327 if_maddr_rlock(ifp); 328 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) 329 { 330 if (ifma->ifma_addr->sa_family != AF_LINK) 331 continue; 332 h = cue_mchash(LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); 333 hashtbl[h >> 3] |= 1 << (h & 0x7); 334 } 335 if_maddr_runlock(ifp); 336 337 /* 338 * Also include the broadcast address in the filter 339 * so we can receive broadcast frames. 340 */ 341 if (ifp->if_flags & IFF_BROADCAST) { 342 h = cue_mchash(ifp->if_broadcastaddr); 343 hashtbl[h >> 3] |= 1 << (h & 0x7); 344 } 345 346 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, &hashtbl, 8); 347} 348 349static void 350cue_reset(struct cue_softc *sc) 351{ 352 struct usb_device_request req; 353 354 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 355 req.bRequest = CUE_CMD_RESET; 356 USETW(req.wValue, 0); 357 USETW(req.wIndex, 0); 358 USETW(req.wLength, 0); 359 360 if (uether_do_request(&sc->sc_ue, &req, NULL, 1000)) { 361 /* ignore any errors */ 362 } 363 364 /* 365 * wait a little while for the chip to get its brains in order: 366 */ 367 uether_pause(&sc->sc_ue, hz / 100); 368} 369 370static void 371cue_attach_post(struct usb_ether *ue) 372{ 373 struct cue_softc *sc = uether_getsc(ue); 374 375 cue_getmac(sc, ue->ue_eaddr); 376} 377 378static int 379cue_probe(device_t dev) 380{ 381 struct usb_attach_arg *uaa = device_get_ivars(dev); 382 383 if (uaa->usb_mode != USB_MODE_HOST) 384 return (ENXIO); 385 if (uaa->info.bConfigIndex != CUE_CONFIG_IDX) 386 return (ENXIO); 387 if (uaa->info.bIfaceIndex != CUE_IFACE_IDX) 388 return (ENXIO); 389 390 return (usbd_lookup_id_by_uaa(cue_devs, sizeof(cue_devs), uaa)); 391} 392 393/* 394 * Attach the interface. Allocate softc structures, do ifmedia 395 * setup and ethernet/BPF attach. 396 */ 397static int 398cue_attach(device_t dev) 399{ 400 struct usb_attach_arg *uaa = device_get_ivars(dev); 401 struct cue_softc *sc = device_get_softc(dev); 402 struct usb_ether *ue = &sc->sc_ue; 403 uint8_t iface_index; 404 int error; 405 406 device_set_usb_desc(dev); 407 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 408 409 iface_index = CUE_IFACE_IDX; 410 error = usbd_transfer_setup(uaa->device, &iface_index, 411 sc->sc_xfer, cue_config, CUE_N_TRANSFER, sc, &sc->sc_mtx); 412 if (error) { 413 device_printf(dev, "allocating USB transfers failed\n"); 414 goto detach; 415 } 416 417 ue->ue_sc = sc; 418 ue->ue_dev = dev; 419 ue->ue_udev = uaa->device; 420 ue->ue_mtx = &sc->sc_mtx; 421 ue->ue_methods = &cue_ue_methods; 422 423 error = uether_ifattach(ue); 424 if (error) { 425 device_printf(dev, "could not attach interface\n"); 426 goto detach; 427 } 428 return (0); /* success */ 429 430detach: 431 cue_detach(dev); 432 return (ENXIO); /* failure */ 433} 434 435static int 436cue_detach(device_t dev) 437{ 438 struct cue_softc *sc = device_get_softc(dev); 439 struct usb_ether *ue = &sc->sc_ue; 440 441 usbd_transfer_unsetup(sc->sc_xfer, CUE_N_TRANSFER); 442 uether_ifdetach(ue); 443 mtx_destroy(&sc->sc_mtx); 444 445 return (0); 446} 447 448static void 449cue_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 450{ 451 struct cue_softc *sc = usbd_xfer_softc(xfer); 452 struct usb_ether *ue = &sc->sc_ue; 453 struct ifnet *ifp = uether_getifp(ue); 454 struct usb_page_cache *pc; 455 uint8_t buf[2]; 456 int len; 457 int actlen; 458 459 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 460 461 switch (USB_GET_STATE(xfer)) { 462 case USB_ST_TRANSFERRED: 463 464 if (actlen <= (int)(2 + sizeof(struct ether_header))) { 465 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 466 goto tr_setup; 467 } 468 pc = usbd_xfer_get_frame(xfer, 0); 469 usbd_copy_out(pc, 0, buf, 2); 470 actlen -= 2; 471 len = buf[0] | (buf[1] << 8); 472 len = min(actlen, len); 473 474 uether_rxbuf(ue, pc, 2, len); 475 /* FALLTHROUGH */ 476 case USB_ST_SETUP: 477tr_setup: 478 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 479 usbd_transfer_submit(xfer); 480 uether_rxflush(ue); 481 return; 482 483 default: /* Error */ 484 DPRINTF("bulk read error, %s\n", 485 usbd_errstr(error)); 486 487 if (error != USB_ERR_CANCELLED) { 488 /* try to clear stall first */ 489 usbd_xfer_set_stall(xfer); 490 goto tr_setup; 491 } 492 return; 493 494 } 495} 496 497static void 498cue_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 499{ 500 struct cue_softc *sc = usbd_xfer_softc(xfer); 501 struct ifnet *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: 513tr_setup: 514 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 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 558static void 559cue_tick(struct usb_ether *ue) 560{ 561 struct cue_softc *sc = uether_getsc(ue); 562 struct ifnet *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 574static void 575cue_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 586static void 587cue_init(struct usb_ether *ue) 588{ 589 struct cue_softc *sc = uether_getsc(ue); 590 struct ifnet *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_LLADDR(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 ifp->if_drv_flags |= IFF_DRV_RUNNING; 629 cue_start(ue); 630} 631 632/* 633 * Stop the adapter and free any mbufs allocated to the 634 * RX and TX lists. 635 */ 636static void 637cue_stop(struct usb_ether *ue) 638{ 639 struct cue_softc *sc = uether_getsc(ue); 640 struct ifnet *ifp = uether_getifp(ue); 641 642 CUE_LOCK_ASSERT(sc, MA_OWNED); 643 644 ifp->if_drv_flags &= ~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