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("$FreeBSD$"); 35 36/* 37 * Kawasaki LSI KL5KUSB101B USB to ethernet adapter driver. 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 KLSI USB to ethernet adapter chip contains an USB serial interface, 46 * ethernet MAC and embedded microcontroller (called the QT Engine). 47 * The chip must have firmware loaded into it before it will operate. 48 * Packets are passed between the chip and host via bulk transfers. 49 * There is an interrupt endpoint mentioned in the software spec, however 50 * it's currently unused. This device is 10Mbps half-duplex only, hence 51 * there is no media selection logic. The MAC supports a 128 entry 52 * multicast filter, though the exact size of the filter can depend 53 * on the firmware. Curiously, while the software spec describes various 54 * ethernet statistics counters, my sample adapter and firmware combination 55 * claims not to support any statistics counters at all. 56 * 57 * Note that once we load the firmware in the device, we have to be 58 * careful not to load it again: if you restart your computer but 59 * leave the adapter attached to the USB controller, it may remain 60 * powered on and retain its firmware. In this case, we don't need 61 * to load the firmware a second time. 62 * 63 * Special thanks to Rob Furr for providing an ADS Technologies 64 * adapter for development and testing. No monkeys were harmed during 65 * the development of this driver. 66 */ 67 68#include <sys/stdint.h> 69#include <sys/stddef.h> 70#include <sys/param.h> 71#include <sys/queue.h> 72#include <sys/types.h> 73#include <sys/systm.h> 74#include <sys/kernel.h> 75#include <sys/bus.h> 76#include <sys/module.h> 77#include <sys/lock.h> 78#include <sys/mutex.h> 79#include <sys/condvar.h> 80#include <sys/sysctl.h> 81#include <sys/sx.h> 82#include <sys/unistd.h> 83#include <sys/callout.h> 84#include <sys/malloc.h> 85#include <sys/priv.h> 86 87#include <dev/usb/usb.h> 88#include <dev/usb/usbdi.h> 89#include <dev/usb/usbdi_util.h> 90#include "usbdevs.h" 91 92#define USB_DEBUG_VAR kue_debug 93#include <dev/usb/usb_debug.h> 94#include <dev/usb/usb_process.h> 95 96#include <dev/usb/net/usb_ethernet.h> 97#include <dev/usb/net/if_kuereg.h> 98#include <dev/usb/net/if_kuefw.h> 99 100/* 101 * Various supported device vendors/products. 102 */ 103static const STRUCT_USB_HOST_ID kue_devs[] = { 104#define KUE_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 105 KUE_DEV(3COM, 3C19250), 106 KUE_DEV(3COM, 3C460), 107 KUE_DEV(ABOCOM, URE450), 108 KUE_DEV(ADS, UBS10BT), 109 KUE_DEV(ADS, UBS10BTX), 110 KUE_DEV(AOX, USB101), 111 KUE_DEV(ASANTE, EA), 112 KUE_DEV(ATEN, DSB650C), 113 KUE_DEV(ATEN, UC10T), 114 KUE_DEV(COREGA, ETHER_USB_T), 115 KUE_DEV(DLINK, DSB650C), 116 KUE_DEV(ENTREGA, E45), 117 KUE_DEV(ENTREGA, XX1), 118 KUE_DEV(ENTREGA, XX2), 119 KUE_DEV(IODATA, USBETT), 120 KUE_DEV(JATON, EDA), 121 KUE_DEV(KINGSTON, XX1), 122 KUE_DEV(KLSI, DUH3E10BT), 123 KUE_DEV(KLSI, DUH3E10BTN), 124 KUE_DEV(LINKSYS, USB10T), 125 KUE_DEV(MOBILITY, EA), 126 KUE_DEV(NETGEAR, EA101), 127 KUE_DEV(NETGEAR, EA101X), 128 KUE_DEV(PERACOM, ENET), 129 KUE_DEV(PERACOM, ENET2), 130 KUE_DEV(PERACOM, ENET3), 131 KUE_DEV(PORTGEAR, EA8), 132 KUE_DEV(PORTGEAR, EA9), 133 KUE_DEV(PORTSMITH, EEA), 134 KUE_DEV(SHARK, PA), 135 KUE_DEV(SILICOM, GPE), 136 KUE_DEV(SILICOM, U2E), 137 KUE_DEV(SMC, 2102USB), 138#undef KUE_DEV 139}; 140 141/* prototypes */ 142 143static device_probe_t kue_probe; 144static device_attach_t kue_attach; 145static device_detach_t kue_detach; 146 147static usb_callback_t kue_bulk_read_callback; 148static usb_callback_t kue_bulk_write_callback; 149 150static uether_fn_t kue_attach_post; 151static uether_fn_t kue_init; 152static uether_fn_t kue_stop; 153static uether_fn_t kue_start; 154static uether_fn_t kue_setmulti; 155static uether_fn_t kue_setpromisc; 156 157static int kue_do_request(struct kue_softc *, 158 struct usb_device_request *, void *); 159static int kue_setword(struct kue_softc *, uint8_t, uint16_t); 160static int kue_ctl(struct kue_softc *, uint8_t, uint8_t, uint16_t, 161 void *, int); 162static int kue_load_fw(struct kue_softc *); 163static void kue_reset(struct kue_softc *); 164 165#ifdef USB_DEBUG 166static int kue_debug = 0; 167 168static SYSCTL_NODE(_hw_usb, OID_AUTO, kue, CTLFLAG_RW, 0, "USB kue"); 169SYSCTL_INT(_hw_usb_kue, OID_AUTO, debug, CTLFLAG_RW, &kue_debug, 0, 170 "Debug level"); 171#endif 172 173static const struct usb_config kue_config[KUE_N_TRANSFER] = { 174 175 [KUE_BULK_DT_WR] = { 176 .type = UE_BULK, 177 .endpoint = UE_ADDR_ANY, 178 .direction = UE_DIR_OUT, 179 .bufsize = (MCLBYTES + 2 + 64), 180 .flags = {.pipe_bof = 1,}, 181 .callback = kue_bulk_write_callback, 182 .timeout = 10000, /* 10 seconds */ 183 }, 184 185 [KUE_BULK_DT_RD] = { 186 .type = UE_BULK, 187 .endpoint = UE_ADDR_ANY, 188 .direction = UE_DIR_IN, 189 .bufsize = (MCLBYTES + 2), 190 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 191 .callback = kue_bulk_read_callback, 192 .timeout = 0, /* no timeout */ 193 }, 194}; 195 196static device_method_t kue_methods[] = { 197 /* Device interface */ 198 DEVMETHOD(device_probe, kue_probe), 199 DEVMETHOD(device_attach, kue_attach), 200 DEVMETHOD(device_detach, kue_detach), 201 202 DEVMETHOD_END 203}; 204 205static driver_t kue_driver = { 206 .name = "kue", 207 .methods = kue_methods, 208 .size = sizeof(struct kue_softc), 209}; 210 211static devclass_t kue_devclass; 212 213DRIVER_MODULE(kue, uhub, kue_driver, kue_devclass, NULL, 0); 214MODULE_DEPEND(kue, uether, 1, 1, 1); 215MODULE_DEPEND(kue, usb, 1, 1, 1); 216MODULE_DEPEND(kue, ether, 1, 1, 1); 217MODULE_VERSION(kue, 1); 218 219static const struct usb_ether_methods kue_ue_methods = { 220 .ue_attach_post = kue_attach_post, 221 .ue_start = kue_start, 222 .ue_init = kue_init, 223 .ue_stop = kue_stop, 224 .ue_setmulti = kue_setmulti, 225 .ue_setpromisc = kue_setpromisc, 226}; 227 228/* 229 * We have a custom do_request function which is almost like the 230 * regular do_request function, except it has a much longer timeout. 231 * Why? Because we need to make requests over the control endpoint 232 * to download the firmware to the device, which can take longer 233 * than the default timeout. 234 */ 235static int 236kue_do_request(struct kue_softc *sc, struct usb_device_request *req, 237 void *data) 238{ 239 usb_error_t err; 240 241 err = uether_do_request(&sc->sc_ue, req, data, 60000); 242 243 return (err); 244} 245 246static int 247kue_setword(struct kue_softc *sc, uint8_t breq, uint16_t word) 248{ 249 struct usb_device_request req; 250 251 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 252 req.bRequest = breq; 253 USETW(req.wValue, word); 254 USETW(req.wIndex, 0); 255 USETW(req.wLength, 0); 256 257 return (kue_do_request(sc, &req, NULL)); 258} 259 260static int 261kue_ctl(struct kue_softc *sc, uint8_t rw, uint8_t breq, 262 uint16_t val, void *data, int len) 263{ 264 struct usb_device_request req; 265 266 if (rw == KUE_CTL_WRITE) 267 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 268 else 269 req.bmRequestType = UT_READ_VENDOR_DEVICE; 270 271 272 req.bRequest = breq; 273 USETW(req.wValue, val); 274 USETW(req.wIndex, 0); 275 USETW(req.wLength, len); 276 277 return (kue_do_request(sc, &req, data)); 278} 279 280static int 281kue_load_fw(struct kue_softc *sc) 282{ 283 struct usb_device_descriptor *dd; 284 uint16_t hwrev; 285 usb_error_t err; 286 287 dd = usbd_get_device_descriptor(sc->sc_ue.ue_udev); 288 hwrev = UGETW(dd->bcdDevice); 289 290 /* 291 * First, check if we even need to load the firmware. 292 * If the device was still attached when the system was 293 * rebooted, it may already have firmware loaded in it. 294 * If this is the case, we don't need to do it again. 295 * And in fact, if we try to load it again, we'll hang, 296 * so we have to avoid this condition if we don't want 297 * to look stupid. 298 * 299 * We can test this quickly by checking the bcdRevision 300 * code. The NIC will return a different revision code if 301 * it's probed while the firmware is still loaded and 302 * running. 303 */ 304 if (hwrev == 0x0202) 305 return(0); 306 307 /* Load code segment */ 308 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN, 309 0, kue_code_seg, sizeof(kue_code_seg)); 310 if (err) { 311 device_printf(sc->sc_ue.ue_dev, "failed to load code segment: %s\n", 312 usbd_errstr(err)); 313 return(ENXIO); 314 } 315 316 /* Load fixup segment */ 317 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN, 318 0, kue_fix_seg, sizeof(kue_fix_seg)); 319 if (err) { 320 device_printf(sc->sc_ue.ue_dev, "failed to load fixup segment: %s\n", 321 usbd_errstr(err)); 322 return(ENXIO); 323 } 324 325 /* Send trigger command. */ 326 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN, 327 0, kue_trig_seg, sizeof(kue_trig_seg)); 328 if (err) { 329 device_printf(sc->sc_ue.ue_dev, "failed to load trigger segment: %s\n", 330 usbd_errstr(err)); 331 return(ENXIO); 332 } 333 334 return (0); 335} 336 337static void 338kue_setpromisc(struct usb_ether *ue) 339{ 340 struct kue_softc *sc = uether_getsc(ue); 341 struct ifnet *ifp = uether_getifp(ue); 342 343 KUE_LOCK_ASSERT(sc, MA_OWNED); 344 345 if (ifp->if_flags & IFF_PROMISC) 346 sc->sc_rxfilt |= KUE_RXFILT_PROMISC; 347 else 348 sc->sc_rxfilt &= ~KUE_RXFILT_PROMISC; 349 350 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->sc_rxfilt); 351} 352 353static void 354kue_setmulti(struct usb_ether *ue) 355{ 356 struct kue_softc *sc = uether_getsc(ue); 357 struct ifnet *ifp = uether_getifp(ue); 358 struct ifmultiaddr *ifma; 359 int i = 0; 360 361 KUE_LOCK_ASSERT(sc, MA_OWNED); 362 363 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 364 sc->sc_rxfilt |= KUE_RXFILT_ALLMULTI; 365 sc->sc_rxfilt &= ~KUE_RXFILT_MULTICAST; 366 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->sc_rxfilt); 367 return; 368 } 369 370 sc->sc_rxfilt &= ~KUE_RXFILT_ALLMULTI; 371 372 if_maddr_rlock(ifp); 373 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) 374 { 375 if (ifma->ifma_addr->sa_family != AF_LINK) 376 continue; 377 /* 378 * If there are too many addresses for the 379 * internal filter, switch over to allmulti mode. 380 */ 381 if (i == KUE_MCFILTCNT(sc)) 382 break; 383 memcpy(KUE_MCFILT(sc, i), 384 LLADDR((struct sockaddr_dl *)ifma->ifma_addr), 385 ETHER_ADDR_LEN); 386 i++; 387 } 388 if_maddr_runlock(ifp); 389 390 if (i == KUE_MCFILTCNT(sc)) 391 sc->sc_rxfilt |= KUE_RXFILT_ALLMULTI; 392 else { 393 sc->sc_rxfilt |= KUE_RXFILT_MULTICAST; 394 kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MCAST_FILTERS, 395 i, sc->sc_mcfilters, i * ETHER_ADDR_LEN); 396 } 397 398 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->sc_rxfilt); 399} 400 401/* 402 * Issue a SET_CONFIGURATION command to reset the MAC. This should be 403 * done after the firmware is loaded into the adapter in order to 404 * bring it into proper operation. 405 */ 406static void 407kue_reset(struct kue_softc *sc) 408{ 409 struct usb_config_descriptor *cd; 410 usb_error_t err; 411 412 cd = usbd_get_config_descriptor(sc->sc_ue.ue_udev); 413 414 err = usbd_req_set_config(sc->sc_ue.ue_udev, &sc->sc_mtx, 415 cd->bConfigurationValue); 416 if (err) 417 DPRINTF("reset failed (ignored)\n"); 418 419 /* wait a little while for the chip to get its brains in order */ 420 uether_pause(&sc->sc_ue, hz / 100); 421} 422 423static void 424kue_attach_post(struct usb_ether *ue) 425{ 426 struct kue_softc *sc = uether_getsc(ue); 427 int error; 428 429 /* load the firmware into the NIC */ 430 error = kue_load_fw(sc); 431 if (error) { 432 device_printf(sc->sc_ue.ue_dev, "could not load firmware\n"); 433 /* ignore the error */ 434 } 435 436 /* reset the adapter */ 437 kue_reset(sc); 438 439 /* read ethernet descriptor */ 440 kue_ctl(sc, KUE_CTL_READ, KUE_CMD_GET_ETHER_DESCRIPTOR, 441 0, &sc->sc_desc, sizeof(sc->sc_desc)); 442 443 /* copy in ethernet address */ 444 memcpy(ue->ue_eaddr, sc->sc_desc.kue_macaddr, sizeof(ue->ue_eaddr)); 445} 446 447/* 448 * Probe for a KLSI chip. 449 */ 450static int 451kue_probe(device_t dev) 452{ 453 struct usb_attach_arg *uaa = device_get_ivars(dev); 454 455 if (uaa->usb_mode != USB_MODE_HOST) 456 return (ENXIO); 457 if (uaa->info.bConfigIndex != KUE_CONFIG_IDX) 458 return (ENXIO); 459 if (uaa->info.bIfaceIndex != KUE_IFACE_IDX) 460 return (ENXIO); 461 462 return (usbd_lookup_id_by_uaa(kue_devs, sizeof(kue_devs), uaa)); 463} 464 465/* 466 * Attach the interface. Allocate softc structures, do 467 * setup and ethernet/BPF attach. 468 */ 469static int 470kue_attach(device_t dev) 471{ 472 struct usb_attach_arg *uaa = device_get_ivars(dev); 473 struct kue_softc *sc = device_get_softc(dev); 474 struct usb_ether *ue = &sc->sc_ue; 475 uint8_t iface_index; 476 int error; 477 478 device_set_usb_desc(dev); 479 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 480 481 iface_index = KUE_IFACE_IDX; 482 error = usbd_transfer_setup(uaa->device, &iface_index, 483 sc->sc_xfer, kue_config, KUE_N_TRANSFER, sc, &sc->sc_mtx); 484 if (error) { 485 device_printf(dev, "allocating USB transfers failed\n"); 486 goto detach; 487 } 488 489 sc->sc_mcfilters = malloc(KUE_MCFILTCNT(sc) * ETHER_ADDR_LEN, 490 M_USBDEV, M_WAITOK); 491 if (sc->sc_mcfilters == NULL) { 492 device_printf(dev, "failed allocating USB memory\n"); 493 goto detach; 494 } 495 496 ue->ue_sc = sc; 497 ue->ue_dev = dev; 498 ue->ue_udev = uaa->device; 499 ue->ue_mtx = &sc->sc_mtx; 500 ue->ue_methods = &kue_ue_methods; 501 502 error = uether_ifattach(ue); 503 if (error) { 504 device_printf(dev, "could not attach interface\n"); 505 goto detach; 506 } 507 return (0); /* success */ 508 509detach: 510 kue_detach(dev); 511 return (ENXIO); /* failure */ 512} 513 514static int 515kue_detach(device_t dev) 516{ 517 struct kue_softc *sc = device_get_softc(dev); 518 struct usb_ether *ue = &sc->sc_ue; 519 520 usbd_transfer_unsetup(sc->sc_xfer, KUE_N_TRANSFER); 521 uether_ifdetach(ue); 522 mtx_destroy(&sc->sc_mtx); 523 free(sc->sc_mcfilters, M_USBDEV); 524 525 return (0); 526} 527 528/* 529 * A frame has been uploaded: pass the resulting mbuf chain up to 530 * the higher level protocols. 531 */ 532static void 533kue_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 534{ 535 struct kue_softc *sc = usbd_xfer_softc(xfer); 536 struct usb_ether *ue = &sc->sc_ue; 537 struct ifnet *ifp = uether_getifp(ue); 538 struct usb_page_cache *pc; 539 uint8_t buf[2]; 540 int len; 541 int actlen; 542 543 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 544 545 switch (USB_GET_STATE(xfer)) { 546 case USB_ST_TRANSFERRED: 547 548 if (actlen <= (int)(2 + sizeof(struct ether_header))) { 549 ifp->if_ierrors++; 550 goto tr_setup; 551 } 552 pc = usbd_xfer_get_frame(xfer, 0); 553 usbd_copy_out(pc, 0, buf, 2); 554 actlen -= 2; 555 len = buf[0] | (buf[1] << 8); 556 len = min(actlen, len); 557 558 uether_rxbuf(ue, pc, 2, len); 559 /* FALLTHROUGH */ 560 case USB_ST_SETUP: 561tr_setup: 562 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 563 usbd_transfer_submit(xfer); 564 uether_rxflush(ue); 565 return; 566 567 default: /* Error */ 568 DPRINTF("bulk read error, %s\n", 569 usbd_errstr(error)); 570 571 if (error != USB_ERR_CANCELLED) { 572 /* try to clear stall first */ 573 usbd_xfer_set_stall(xfer); 574 goto tr_setup; 575 } 576 return; 577 578 } 579} 580 581static void 582kue_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 583{ 584 struct kue_softc *sc = usbd_xfer_softc(xfer); 585 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 586 struct usb_page_cache *pc; 587 struct mbuf *m; 588 int total_len; 589 int temp_len; 590 uint8_t buf[2]; 591 592 switch (USB_GET_STATE(xfer)) { 593 case USB_ST_TRANSFERRED: 594 DPRINTFN(11, "transfer complete\n"); 595 ifp->if_opackets++; 596 597 /* FALLTHROUGH */ 598 case USB_ST_SETUP: 599tr_setup: 600 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 601 602 if (m == NULL) 603 return; 604 if (m->m_pkthdr.len > MCLBYTES) 605 m->m_pkthdr.len = MCLBYTES; 606 temp_len = (m->m_pkthdr.len + 2); 607 total_len = (temp_len + (64 - (temp_len % 64))); 608 609 /* the first two bytes are the frame length */ 610 611 buf[0] = (uint8_t)(m->m_pkthdr.len); 612 buf[1] = (uint8_t)(m->m_pkthdr.len >> 8); 613 614 pc = usbd_xfer_get_frame(xfer, 0); 615 usbd_copy_in(pc, 0, buf, 2); 616 usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len); 617 618 usbd_frame_zero(pc, temp_len, total_len - temp_len); 619 usbd_xfer_set_frame_len(xfer, 0, total_len); 620 621 /* 622 * if there's a BPF listener, bounce a copy 623 * of this frame to him: 624 */ 625 BPF_MTAP(ifp, m); 626 627 m_freem(m); 628 629 usbd_transfer_submit(xfer); 630 631 return; 632 633 default: /* Error */ 634 DPRINTFN(11, "transfer error, %s\n", 635 usbd_errstr(error)); 636 637 ifp->if_oerrors++; 638 639 if (error != USB_ERR_CANCELLED) { 640 /* try to clear stall first */ 641 usbd_xfer_set_stall(xfer); 642 goto tr_setup; 643 } 644 return; 645 646 } 647} 648 649static void 650kue_start(struct usb_ether *ue) 651{ 652 struct kue_softc *sc = uether_getsc(ue); 653 654 /* 655 * start the USB transfers, if not already started: 656 */ 657 usbd_transfer_start(sc->sc_xfer[KUE_BULK_DT_RD]); 658 usbd_transfer_start(sc->sc_xfer[KUE_BULK_DT_WR]); 659} 660 661static void 662kue_init(struct usb_ether *ue) 663{ 664 struct kue_softc *sc = uether_getsc(ue); 665 struct ifnet *ifp = uether_getifp(ue); 666 667 KUE_LOCK_ASSERT(sc, MA_OWNED); 668 669 /* set MAC address */ 670 kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MAC, 671 0, IF_LLADDR(ifp), ETHER_ADDR_LEN); 672 673 /* I'm not sure how to tune these. */ 674#if 0 675 /* 676 * Leave this one alone for now; setting it 677 * wrong causes lockups on some machines/controllers. 678 */ 679 kue_setword(sc, KUE_CMD_SET_SOFS, 1); 680#endif 681 kue_setword(sc, KUE_CMD_SET_URB_SIZE, 64); 682 683 /* load the multicast filter */ 684 kue_setpromisc(ue); 685 686 usbd_xfer_set_stall(sc->sc_xfer[KUE_BULK_DT_WR]); 687 688 ifp->if_drv_flags |= IFF_DRV_RUNNING; 689 kue_start(ue); 690} 691 692static void 693kue_stop(struct usb_ether *ue) 694{ 695 struct kue_softc *sc = uether_getsc(ue); 696 struct ifnet *ifp = uether_getifp(ue); 697 698 KUE_LOCK_ASSERT(sc, MA_OWNED); 699 700 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 701 702 /* 703 * stop all the transfers, if not already stopped: 704 */ 705 usbd_transfer_stop(sc->sc_xfer[KUE_BULK_DT_WR]); 706 usbd_transfer_stop(sc->sc_xfer[KUE_BULK_DT_RD]); 707} 708