1 /* $NetBSD: if_kue.c,v 1.60 2007/03/13 13:51:54 drochner Exp $ */ 2 /* 3 * Copyright (c) 1997, 1998, 1999, 2000 4 * Bill Paul <wpaul@ee.columbia.edu>. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Bill Paul. 17 * 4. Neither the name of the author nor the names of any co-contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 31 * THE POSSIBILITY OF SUCH DAMAGE. 32 * 33 * $FreeBSD: src/sys/dev/usb/if_kue.c,v 1.14 2000/01/14 01:36:15 wpaul Exp $ 34 */ 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 /* 69 * Ported to NetBSD and somewhat rewritten by Lennart Augustsson. 70 */ 71 72 #include <sys/cdefs.h> 73 __KERNEL_RCSID(0, "$NetBSD: if_kue.c,v 1.60 2007/03/13 13:51:54 drochner Exp $"); 74 75 #if defined(__NetBSD__) 76 #include "opt_inet.h" 77 #include "bpfilter.h" 78 #include "rnd.h" 79 #elif defined(__OpenBSD__) 80 #include "bpfilter.h" 81 #endif 82 83 #include <sys/param.h> 84 #include <sys/systm.h> 85 #include <sys/sockio.h> 86 #include <sys/mbuf.h> 87 #include <sys/malloc.h> 88 #include <sys/kernel.h> 89 #include <sys/socket.h> 90 #include <sys/device.h> 91 #include <sys/proc.h> 92 93 #if NRND > 0 94 #include <sys/rnd.h> 95 #endif 96 97 #include <net/if.h> 98 #if defined(__NetBSD__) 99 #include <net/if_arp.h> 100 #endif 101 #include <net/if_dl.h> 102 103 #if NBPFILTER > 0 104 #include <net/bpf.h> 105 #endif 106 107 #if defined(__NetBSD__) 108 #include <net/if_ether.h> 109 #ifdef INET 110 #include <netinet/in.h> 111 #include <netinet/if_inarp.h> 112 #endif 113 #endif /* defined (__NetBSD__) */ 114 115 #if defined(__OpenBSD__) 116 #ifdef INET 117 #include <netinet/in.h> 118 #include <netinet/in_systm.h> 119 #include <netinet/in_var.h> 120 #include <netinet/ip.h> 121 #include <netinet/if_ether.h> 122 #endif 123 #endif /* defined (__OpenBSD__) */ 124 125 126 #include <dev/usb/usb.h> 127 #include <dev/usb/usbdi.h> 128 #include <dev/usb/usbdi_util.h> 129 #include <dev/usb/usbdevs.h> 130 131 #include <dev/usb/if_kuereg.h> 132 #include <dev/usb/kue_fw.h> 133 134 #ifdef KUE_DEBUG 135 #define DPRINTF(x) if (kuedebug) logprintf x 136 #define DPRINTFN(n,x) if (kuedebug >= (n)) logprintf x 137 int kuedebug = 0; 138 #else 139 #define DPRINTF(x) 140 #define DPRINTFN(n,x) 141 #endif 142 143 /* 144 * Various supported device vendors/products. 145 */ 146 Static const struct usb_devno kue_devs[] = { 147 { USB_VENDOR_3COM, USB_PRODUCT_3COM_3C19250 }, 148 { USB_VENDOR_3COM, USB_PRODUCT_3COM_3C460 }, 149 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_URE450 }, 150 { USB_VENDOR_ADS, USB_PRODUCT_ADS_UBS10BT }, 151 { USB_VENDOR_ADS, USB_PRODUCT_ADS_UBS10BTX }, 152 { USB_VENDOR_AOX, USB_PRODUCT_AOX_USB101 }, 153 { USB_VENDOR_ASANTE, USB_PRODUCT_ASANTE_EA }, 154 { USB_VENDOR_ATEN, USB_PRODUCT_ATEN_UC10T }, 155 { USB_VENDOR_ATEN, USB_PRODUCT_ATEN_DSB650C }, 156 { USB_VENDOR_COREGA, USB_PRODUCT_COREGA_ETHER_USB_T }, 157 { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650C }, 158 { USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_E45 }, 159 { USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_XX1 }, 160 { USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_XX2 }, 161 { USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBETT }, 162 { USB_VENDOR_JATON, USB_PRODUCT_JATON_EDA }, 163 { USB_VENDOR_KINGSTON, USB_PRODUCT_KINGSTON_XX1 }, 164 { USB_VENDOR_KLSI, USB_PRODUCT_KLSI_DUH3E10BT }, 165 { USB_VENDOR_KLSI, USB_PRODUCT_KLSI_DUH3E10BTN }, 166 { USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10T }, 167 { USB_VENDOR_MOBILITY, USB_PRODUCT_MOBILITY_EA }, 168 { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_EA101 }, 169 { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_EA101X }, 170 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET }, 171 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET2 }, 172 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET3 }, 173 { USB_VENDOR_PORTGEAR, USB_PRODUCT_PORTGEAR_EA8 }, 174 { USB_VENDOR_PORTGEAR, USB_PRODUCT_PORTGEAR_EA9 }, 175 { USB_VENDOR_PORTSMITH, USB_PRODUCT_PORTSMITH_EEA }, 176 { USB_VENDOR_SHARK, USB_PRODUCT_SHARK_PA }, 177 { USB_VENDOR_SILICOM, USB_PRODUCT_SILICOM_U2E }, 178 { USB_VENDOR_SMC, USB_PRODUCT_SMC_2102USB }, 179 }; 180 #define kue_lookup(v, p) (usb_lookup(kue_devs, v, p)) 181 182 USB_DECLARE_DRIVER(kue); 183 184 Static int kue_tx_list_init(struct kue_softc *); 185 Static int kue_rx_list_init(struct kue_softc *); 186 Static int kue_newbuf(struct kue_softc *, struct kue_chain *,struct mbuf *); 187 Static int kue_send(struct kue_softc *, struct mbuf *, int); 188 Static int kue_open_pipes(struct kue_softc *); 189 Static void kue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 190 Static void kue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 191 Static void kue_start(struct ifnet *); 192 Static int kue_ioctl(struct ifnet *, u_long, void *); 193 Static void kue_init(void *); 194 Static void kue_stop(struct kue_softc *); 195 Static void kue_watchdog(struct ifnet *); 196 197 Static void kue_setmulti(struct kue_softc *); 198 Static void kue_reset(struct kue_softc *); 199 200 Static usbd_status kue_ctl(struct kue_softc *, int, u_int8_t, 201 u_int16_t, void *, u_int32_t); 202 Static usbd_status kue_setword(struct kue_softc *, u_int8_t, u_int16_t); 203 Static int kue_load_fw(struct kue_softc *); 204 205 Static usbd_status 206 kue_setword(struct kue_softc *sc, u_int8_t breq, u_int16_t word) 207 { 208 usb_device_request_t req; 209 210 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 211 212 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 213 req.bRequest = breq; 214 USETW(req.wValue, word); 215 USETW(req.wIndex, 0); 216 USETW(req.wLength, 0); 217 218 return (usbd_do_request(sc->kue_udev, &req, NULL)); 219 } 220 221 Static usbd_status 222 kue_ctl(struct kue_softc *sc, int rw, u_int8_t breq, u_int16_t val, 223 void *data, u_int32_t len) 224 { 225 usb_device_request_t req; 226 227 DPRINTFN(10,("%s: %s: enter, len=%d\n", USBDEVNAME(sc->kue_dev), 228 __func__, len)); 229 230 if (rw == KUE_CTL_WRITE) 231 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 232 else 233 req.bmRequestType = UT_READ_VENDOR_DEVICE; 234 235 req.bRequest = breq; 236 USETW(req.wValue, val); 237 USETW(req.wIndex, 0); 238 USETW(req.wLength, len); 239 240 return (usbd_do_request(sc->kue_udev, &req, data)); 241 } 242 243 Static int 244 kue_load_fw(struct kue_softc *sc) 245 { 246 usb_device_descriptor_t dd; 247 usbd_status err; 248 249 DPRINTFN(1,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__)); 250 251 /* 252 * First, check if we even need to load the firmware. 253 * If the device was still attached when the system was 254 * rebooted, it may already have firmware loaded in it. 255 * If this is the case, we don't need to do it again. 256 * And in fact, if we try to load it again, we'll hang, 257 * so we have to avoid this condition if we don't want 258 * to look stupid. 259 * 260 * We can test this quickly by checking the bcdRevision 261 * code. The NIC will return a different revision code if 262 * it's probed while the firmware is still loaded and 263 * running. 264 */ 265 if (usbd_get_device_desc(sc->kue_udev, &dd)) 266 return (EIO); 267 if (UGETW(dd.bcdDevice) == KUE_WARM_REV) { 268 printf("%s: warm boot, no firmware download\n", 269 USBDEVNAME(sc->kue_dev)); 270 return (0); 271 } 272 273 printf("%s: cold boot, downloading firmware\n", 274 USBDEVNAME(sc->kue_dev)); 275 276 /* Load code segment */ 277 DPRINTFN(1,("%s: kue_load_fw: download code_seg\n", 278 USBDEVNAME(sc->kue_dev))); 279 /*XXXUNCONST*/ 280 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN, 281 0, __UNCONST(kue_code_seg), sizeof(kue_code_seg)); 282 if (err) { 283 printf("%s: failed to load code segment: %s\n", 284 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 285 return (EIO); 286 } 287 288 /* Load fixup segment */ 289 DPRINTFN(1,("%s: kue_load_fw: download fix_seg\n", 290 USBDEVNAME(sc->kue_dev))); 291 /*XXXUNCONST*/ 292 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN, 293 0, __UNCONST(kue_fix_seg), sizeof(kue_fix_seg)); 294 if (err) { 295 printf("%s: failed to load fixup segment: %s\n", 296 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 297 return (EIO); 298 } 299 300 /* Send trigger command. */ 301 DPRINTFN(1,("%s: kue_load_fw: download trig_seg\n", 302 USBDEVNAME(sc->kue_dev))); 303 /*XXXUNCONST*/ 304 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN, 305 0, __UNCONST(kue_trig_seg), sizeof(kue_trig_seg)); 306 if (err) { 307 printf("%s: failed to load trigger segment: %s\n", 308 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 309 return (EIO); 310 } 311 312 usbd_delay_ms(sc->kue_udev, 10); 313 314 /* 315 * Reload device descriptor. 316 * Why? The chip without the firmware loaded returns 317 * one revision code. The chip with the firmware 318 * loaded and running returns a *different* revision 319 * code. This confuses the quirk mechanism, which is 320 * dependent on the revision data. 321 */ 322 (void)usbd_reload_device_desc(sc->kue_udev); 323 324 DPRINTFN(1,("%s: %s: done\n", USBDEVNAME(sc->kue_dev), __func__)); 325 326 /* Reset the adapter. */ 327 kue_reset(sc); 328 329 return (0); 330 } 331 332 Static void 333 kue_setmulti(struct kue_softc *sc) 334 { 335 struct ifnet *ifp = GET_IFP(sc); 336 struct ether_multi *enm; 337 struct ether_multistep step; 338 int i; 339 340 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__)); 341 342 if (ifp->if_flags & IFF_PROMISC) { 343 allmulti: 344 ifp->if_flags |= IFF_ALLMULTI; 345 sc->kue_rxfilt |= KUE_RXFILT_ALLMULTI; 346 sc->kue_rxfilt &= ~KUE_RXFILT_MULTICAST; 347 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt); 348 return; 349 } 350 351 sc->kue_rxfilt &= ~KUE_RXFILT_ALLMULTI; 352 353 i = 0; 354 #if defined (__NetBSD__) 355 ETHER_FIRST_MULTI(step, &sc->kue_ec, enm); 356 #else 357 ETHER_FIRST_MULTI(step, &sc->arpcom, enm); 358 #endif 359 while (enm != NULL) { 360 if (i == KUE_MCFILTCNT(sc) || 361 memcmp(enm->enm_addrlo, enm->enm_addrhi, 362 ETHER_ADDR_LEN) != 0) 363 goto allmulti; 364 365 memcpy(KUE_MCFILT(sc, i), enm->enm_addrlo, ETHER_ADDR_LEN); 366 ETHER_NEXT_MULTI(step, enm); 367 i++; 368 } 369 370 ifp->if_flags &= ~IFF_ALLMULTI; 371 372 sc->kue_rxfilt |= KUE_RXFILT_MULTICAST; 373 kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MCAST_FILTERS, 374 i, sc->kue_mcfilters, i * ETHER_ADDR_LEN); 375 376 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt); 377 } 378 379 /* 380 * Issue a SET_CONFIGURATION command to reset the MAC. This should be 381 * done after the firmware is loaded into the adapter in order to 382 * bring it into proper operation. 383 */ 384 Static void 385 kue_reset(struct kue_softc *sc) 386 { 387 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__)); 388 389 if (usbd_set_config_no(sc->kue_udev, KUE_CONFIG_NO, 1) || 390 usbd_device2interface_handle(sc->kue_udev, KUE_IFACE_IDX, 391 &sc->kue_iface)) 392 printf("%s: reset failed\n", USBDEVNAME(sc->kue_dev)); 393 394 /* Wait a little while for the chip to get its brains in order. */ 395 usbd_delay_ms(sc->kue_udev, 10); 396 } 397 398 /* 399 * Probe for a KLSI chip. 400 */ 401 USB_MATCH(kue) 402 { 403 USB_MATCH_START(kue, uaa); 404 405 DPRINTFN(25,("kue_match: enter\n")); 406 407 return (kue_lookup(uaa->vendor, uaa->product) != NULL ? 408 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 409 } 410 411 /* 412 * Attach the interface. Allocate softc structures, do 413 * setup and ethernet/BPF attach. 414 */ 415 USB_ATTACH(kue) 416 { 417 USB_ATTACH_START(kue, sc, uaa); 418 char *devinfop; 419 int s; 420 struct ifnet *ifp; 421 usbd_device_handle dev = uaa->device; 422 usbd_interface_handle iface; 423 usbd_status err; 424 usb_interface_descriptor_t *id; 425 usb_endpoint_descriptor_t *ed; 426 int i; 427 428 DPRINTFN(5,(" : kue_attach: sc=%p, dev=%p", sc, dev)); 429 430 devinfop = usbd_devinfo_alloc(dev, 0); 431 USB_ATTACH_SETUP; 432 printf("%s: %s\n", USBDEVNAME(sc->kue_dev), devinfop); 433 usbd_devinfo_free(devinfop); 434 435 err = usbd_set_config_no(dev, KUE_CONFIG_NO, 1); 436 if (err) { 437 printf("%s: setting config no failed\n", 438 USBDEVNAME(sc->kue_dev)); 439 USB_ATTACH_ERROR_RETURN; 440 } 441 442 sc->kue_udev = dev; 443 sc->kue_product = uaa->product; 444 sc->kue_vendor = uaa->vendor; 445 446 /* Load the firmware into the NIC. */ 447 if (kue_load_fw(sc)) { 448 printf("%s: loading firmware failed\n", 449 USBDEVNAME(sc->kue_dev)); 450 USB_ATTACH_ERROR_RETURN; 451 } 452 453 err = usbd_device2interface_handle(dev, KUE_IFACE_IDX, &iface); 454 if (err) { 455 printf("%s: getting interface handle failed\n", 456 USBDEVNAME(sc->kue_dev)); 457 USB_ATTACH_ERROR_RETURN; 458 } 459 460 sc->kue_iface = iface; 461 id = usbd_get_interface_descriptor(iface); 462 463 /* Find endpoints. */ 464 for (i = 0; i < id->bNumEndpoints; i++) { 465 ed = usbd_interface2endpoint_descriptor(iface, i); 466 if (ed == NULL) { 467 printf("%s: couldn't get ep %d\n", 468 USBDEVNAME(sc->kue_dev), i); 469 USB_ATTACH_ERROR_RETURN; 470 } 471 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 472 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 473 sc->kue_ed[KUE_ENDPT_RX] = ed->bEndpointAddress; 474 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 475 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 476 sc->kue_ed[KUE_ENDPT_TX] = ed->bEndpointAddress; 477 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 478 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 479 sc->kue_ed[KUE_ENDPT_INTR] = ed->bEndpointAddress; 480 } 481 } 482 483 if (sc->kue_ed[KUE_ENDPT_RX] == 0 || sc->kue_ed[KUE_ENDPT_TX] == 0) { 484 printf("%s: missing endpoint\n", USBDEVNAME(sc->kue_dev)); 485 USB_ATTACH_ERROR_RETURN; 486 } 487 488 /* Read ethernet descriptor */ 489 err = kue_ctl(sc, KUE_CTL_READ, KUE_CMD_GET_ETHER_DESCRIPTOR, 490 0, &sc->kue_desc, sizeof(sc->kue_desc)); 491 if (err) { 492 printf("%s: could not read Ethernet descriptor\n", 493 USBDEVNAME(sc->kue_dev)); 494 USB_ATTACH_ERROR_RETURN; 495 } 496 497 sc->kue_mcfilters = malloc(KUE_MCFILTCNT(sc) * ETHER_ADDR_LEN, 498 M_USBDEV, M_NOWAIT); 499 if (sc->kue_mcfilters == NULL) { 500 printf("%s: no memory for multicast filter buffer\n", 501 USBDEVNAME(sc->kue_dev)); 502 USB_ATTACH_ERROR_RETURN; 503 } 504 505 s = splnet(); 506 507 /* 508 * A KLSI chip was detected. Inform the world. 509 */ 510 printf("%s: Ethernet address %s\n", USBDEVNAME(sc->kue_dev), 511 ether_sprintf(sc->kue_desc.kue_macaddr)); 512 513 /* Initialize interface info.*/ 514 ifp = GET_IFP(sc); 515 ifp->if_softc = sc; 516 ifp->if_mtu = ETHERMTU; 517 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 518 ifp->if_ioctl = kue_ioctl; 519 ifp->if_start = kue_start; 520 ifp->if_watchdog = kue_watchdog; 521 #if defined(__OpenBSD__) 522 ifp->if_snd.ifq_maxlen = IFQ_MAXLEN; 523 #endif 524 strncpy(ifp->if_xname, USBDEVNAME(sc->kue_dev), IFNAMSIZ); 525 526 IFQ_SET_READY(&ifp->if_snd); 527 528 /* Attach the interface. */ 529 if_attach(ifp); 530 Ether_ifattach(ifp, sc->kue_desc.kue_macaddr); 531 #if NRND > 0 532 rnd_attach_source(&sc->rnd_source, USBDEVNAME(sc->kue_dev), 533 RND_TYPE_NET, 0); 534 #endif 535 536 sc->kue_attached = 1; 537 splx(s); 538 539 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->kue_udev, 540 USBDEV(sc->kue_dev)); 541 542 USB_ATTACH_SUCCESS_RETURN; 543 } 544 545 USB_DETACH(kue) 546 { 547 USB_DETACH_START(kue, sc); 548 struct ifnet *ifp = GET_IFP(sc); 549 int s; 550 551 s = splusb(); /* XXX why? */ 552 553 if (sc->kue_mcfilters != NULL) { 554 free(sc->kue_mcfilters, M_USBDEV); 555 sc->kue_mcfilters = NULL; 556 } 557 558 if (!sc->kue_attached) { 559 /* Detached before attached finished, so just bail out. */ 560 splx(s); 561 return (0); 562 } 563 564 if (ifp->if_flags & IFF_RUNNING) 565 kue_stop(sc); 566 567 #if defined(__NetBSD__) 568 #if NRND > 0 569 rnd_detach_source(&sc->rnd_source); 570 #endif 571 ether_ifdetach(ifp); 572 #endif /* __NetBSD__ */ 573 574 if_detach(ifp); 575 576 #ifdef DIAGNOSTIC 577 if (sc->kue_ep[KUE_ENDPT_TX] != NULL || 578 sc->kue_ep[KUE_ENDPT_RX] != NULL || 579 sc->kue_ep[KUE_ENDPT_INTR] != NULL) 580 printf("%s: detach has active endpoints\n", 581 USBDEVNAME(sc->kue_dev)); 582 #endif 583 584 sc->kue_attached = 0; 585 splx(s); 586 587 return (0); 588 } 589 590 int 591 kue_activate(device_ptr_t self, enum devact act) 592 { 593 struct kue_softc *sc = (struct kue_softc *)self; 594 595 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__)); 596 597 switch (act) { 598 case DVACT_ACTIVATE: 599 return (EOPNOTSUPP); 600 break; 601 602 case DVACT_DEACTIVATE: 603 #if defined(__NetBSD__) 604 /* Deactivate the interface. */ 605 if_deactivate(&sc->kue_ec.ec_if); 606 #endif 607 sc->kue_dying = 1; 608 break; 609 } 610 return (0); 611 } 612 613 /* 614 * Initialize an RX descriptor and attach an MBUF cluster. 615 */ 616 Static int 617 kue_newbuf(struct kue_softc *sc, struct kue_chain *c, struct mbuf *m) 618 { 619 struct mbuf *m_new = NULL; 620 621 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 622 623 if (m == NULL) { 624 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 625 if (m_new == NULL) { 626 printf("%s: no memory for rx list " 627 "-- packet dropped!\n", USBDEVNAME(sc->kue_dev)); 628 return (ENOBUFS); 629 } 630 631 MCLGET(m_new, M_DONTWAIT); 632 if (!(m_new->m_flags & M_EXT)) { 633 printf("%s: no memory for rx list " 634 "-- packet dropped!\n", USBDEVNAME(sc->kue_dev)); 635 m_freem(m_new); 636 return (ENOBUFS); 637 } 638 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 639 } else { 640 m_new = m; 641 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 642 m_new->m_data = m_new->m_ext.ext_buf; 643 } 644 645 c->kue_mbuf = m_new; 646 647 return (0); 648 } 649 650 Static int 651 kue_rx_list_init(struct kue_softc *sc) 652 { 653 struct kue_cdata *cd; 654 struct kue_chain *c; 655 int i; 656 657 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__)); 658 659 cd = &sc->kue_cdata; 660 for (i = 0; i < KUE_RX_LIST_CNT; i++) { 661 c = &cd->kue_rx_chain[i]; 662 c->kue_sc = sc; 663 c->kue_idx = i; 664 if (kue_newbuf(sc, c, NULL) == ENOBUFS) 665 return (ENOBUFS); 666 if (c->kue_xfer == NULL) { 667 c->kue_xfer = usbd_alloc_xfer(sc->kue_udev); 668 if (c->kue_xfer == NULL) 669 return (ENOBUFS); 670 c->kue_buf = usbd_alloc_buffer(c->kue_xfer, KUE_BUFSZ); 671 if (c->kue_buf == NULL) 672 return (ENOBUFS); /* XXX free xfer */ 673 } 674 } 675 676 return (0); 677 } 678 679 Static int 680 kue_tx_list_init(struct kue_softc *sc) 681 { 682 struct kue_cdata *cd; 683 struct kue_chain *c; 684 int i; 685 686 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__)); 687 688 cd = &sc->kue_cdata; 689 for (i = 0; i < KUE_TX_LIST_CNT; i++) { 690 c = &cd->kue_tx_chain[i]; 691 c->kue_sc = sc; 692 c->kue_idx = i; 693 c->kue_mbuf = NULL; 694 if (c->kue_xfer == NULL) { 695 c->kue_xfer = usbd_alloc_xfer(sc->kue_udev); 696 if (c->kue_xfer == NULL) 697 return (ENOBUFS); 698 c->kue_buf = usbd_alloc_buffer(c->kue_xfer, KUE_BUFSZ); 699 if (c->kue_buf == NULL) 700 return (ENOBUFS); 701 } 702 } 703 704 return (0); 705 } 706 707 /* 708 * A frame has been uploaded: pass the resulting mbuf chain up to 709 * the higher level protocols. 710 */ 711 Static void 712 kue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 713 { 714 struct kue_chain *c = priv; 715 struct kue_softc *sc = c->kue_sc; 716 struct ifnet *ifp = GET_IFP(sc); 717 struct mbuf *m; 718 int total_len = 0; 719 int s; 720 721 DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->kue_dev), 722 __func__, status)); 723 724 if (sc->kue_dying) 725 return; 726 727 if (!(ifp->if_flags & IFF_RUNNING)) 728 return; 729 730 if (status != USBD_NORMAL_COMPLETION) { 731 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 732 return; 733 sc->kue_rx_errs++; 734 if (usbd_ratecheck(&sc->kue_rx_notice)) { 735 printf("%s: %u usb errors on rx: %s\n", 736 USBDEVNAME(sc->kue_dev), sc->kue_rx_errs, 737 usbd_errstr(status)); 738 sc->kue_rx_errs = 0; 739 } 740 if (status == USBD_STALLED) 741 usbd_clear_endpoint_stall_async(sc->kue_ep[KUE_ENDPT_RX]); 742 goto done; 743 } 744 745 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 746 747 DPRINTFN(10,("%s: %s: total_len=%d len=%d\n", USBDEVNAME(sc->kue_dev), 748 __func__, total_len, 749 UGETW(mtod(c->kue_mbuf, u_int8_t *)))); 750 751 if (total_len <= 1) 752 goto done; 753 754 m = c->kue_mbuf; 755 /* copy data to mbuf */ 756 memcpy(mtod(m, char *), c->kue_buf, total_len); 757 758 /* No errors; receive the packet. */ 759 total_len = UGETW(mtod(m, u_int8_t *)); 760 m_adj(m, sizeof(u_int16_t)); 761 762 if (total_len < sizeof(struct ether_header)) { 763 ifp->if_ierrors++; 764 goto done; 765 } 766 767 ifp->if_ipackets++; 768 m->m_pkthdr.len = m->m_len = total_len; 769 770 m->m_pkthdr.rcvif = ifp; 771 772 s = splnet(); 773 774 /* XXX ugly */ 775 if (kue_newbuf(sc, c, NULL) == ENOBUFS) { 776 ifp->if_ierrors++; 777 goto done1; 778 } 779 780 #if NBPFILTER > 0 781 /* 782 * Handle BPF listeners. Let the BPF user see the packet, but 783 * don't pass it up to the ether_input() layer unless it's 784 * a broadcast packet, multicast packet, matches our ethernet 785 * address or the interface is in promiscuous mode. 786 */ 787 if (ifp->if_bpf) 788 bpf_mtap(ifp->if_bpf, m); 789 #endif 790 791 DPRINTFN(10,("%s: %s: deliver %d\n", USBDEVNAME(sc->kue_dev), 792 __func__, m->m_len)); 793 IF_INPUT(ifp, m); 794 done1: 795 splx(s); 796 797 done: 798 799 /* Setup new transfer. */ 800 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX], 801 c, c->kue_buf, KUE_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, 802 USBD_NO_TIMEOUT, kue_rxeof); 803 usbd_transfer(c->kue_xfer); 804 805 DPRINTFN(10,("%s: %s: start rx\n", USBDEVNAME(sc->kue_dev), 806 __func__)); 807 } 808 809 /* 810 * A frame was downloaded to the chip. It's safe for us to clean up 811 * the list buffers. 812 */ 813 814 Static void 815 kue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, 816 usbd_status status) 817 { 818 struct kue_chain *c = priv; 819 struct kue_softc *sc = c->kue_sc; 820 struct ifnet *ifp = GET_IFP(sc); 821 int s; 822 823 if (sc->kue_dying) 824 return; 825 826 s = splnet(); 827 828 DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->kue_dev), 829 __func__, status)); 830 831 ifp->if_timer = 0; 832 ifp->if_flags &= ~IFF_OACTIVE; 833 834 if (status != USBD_NORMAL_COMPLETION) { 835 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 836 splx(s); 837 return; 838 } 839 ifp->if_oerrors++; 840 printf("%s: usb error on tx: %s\n", USBDEVNAME(sc->kue_dev), 841 usbd_errstr(status)); 842 if (status == USBD_STALLED) 843 usbd_clear_endpoint_stall_async(sc->kue_ep[KUE_ENDPT_TX]); 844 splx(s); 845 return; 846 } 847 848 ifp->if_opackets++; 849 850 m_freem(c->kue_mbuf); 851 c->kue_mbuf = NULL; 852 853 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 854 kue_start(ifp); 855 856 splx(s); 857 } 858 859 Static int 860 kue_send(struct kue_softc *sc, struct mbuf *m, int idx) 861 { 862 int total_len; 863 struct kue_chain *c; 864 usbd_status err; 865 866 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 867 868 c = &sc->kue_cdata.kue_tx_chain[idx]; 869 870 /* 871 * Copy the mbuf data into a contiguous buffer, leaving two 872 * bytes at the beginning to hold the frame length. 873 */ 874 m_copydata(m, 0, m->m_pkthdr.len, c->kue_buf + 2); 875 c->kue_mbuf = m; 876 877 total_len = m->m_pkthdr.len + 2; 878 /* XXX what's this? */ 879 total_len += 64 - (total_len % 64); 880 881 /* Frame length is specified in the first 2 bytes of the buffer. */ 882 c->kue_buf[0] = (u_int8_t)m->m_pkthdr.len; 883 c->kue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8); 884 885 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_TX], 886 c, c->kue_buf, total_len, USBD_NO_COPY, USBD_DEFAULT_TIMEOUT, 887 kue_txeof); 888 889 /* Transmit */ 890 err = usbd_transfer(c->kue_xfer); 891 if (err != USBD_IN_PROGRESS) { 892 printf("%s: kue_send error=%s\n", USBDEVNAME(sc->kue_dev), 893 usbd_errstr(err)); 894 kue_stop(sc); 895 return (EIO); 896 } 897 898 sc->kue_cdata.kue_tx_cnt++; 899 900 return (0); 901 } 902 903 Static void 904 kue_start(struct ifnet *ifp) 905 { 906 struct kue_softc *sc = ifp->if_softc; 907 struct mbuf *m_head = NULL; 908 909 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 910 911 if (sc->kue_dying) 912 return; 913 914 if (ifp->if_flags & IFF_OACTIVE) 915 return; 916 917 IFQ_POLL(&ifp->if_snd, m_head); 918 if (m_head == NULL) 919 return; 920 921 if (kue_send(sc, m_head, 0)) { 922 ifp->if_flags |= IFF_OACTIVE; 923 return; 924 } 925 926 IFQ_DEQUEUE(&ifp->if_snd, m_head); 927 928 #if NBPFILTER > 0 929 /* 930 * If there's a BPF listener, bounce a copy of this frame 931 * to him. 932 */ 933 if (ifp->if_bpf) 934 bpf_mtap(ifp->if_bpf, m_head); 935 #endif 936 937 ifp->if_flags |= IFF_OACTIVE; 938 939 /* 940 * Set a timeout in case the chip goes out to lunch. 941 */ 942 ifp->if_timer = 6; 943 } 944 945 Static void 946 kue_init(void *xsc) 947 { 948 struct kue_softc *sc = xsc; 949 struct ifnet *ifp = GET_IFP(sc); 950 int s; 951 u_char *eaddr; 952 953 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 954 955 if (ifp->if_flags & IFF_RUNNING) 956 return; 957 958 s = splnet(); 959 960 #if defined(__NetBSD__) 961 eaddr = LLADDR(ifp->if_sadl); 962 #else 963 eaddr = sc->arpcom.ac_enaddr; 964 #endif /* defined(__NetBSD__) */ 965 /* Set MAC address */ 966 kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MAC, 0, eaddr, ETHER_ADDR_LEN); 967 968 sc->kue_rxfilt = KUE_RXFILT_UNICAST | KUE_RXFILT_BROADCAST; 969 970 /* If we want promiscuous mode, set the allframes bit. */ 971 if (ifp->if_flags & IFF_PROMISC) 972 sc->kue_rxfilt |= KUE_RXFILT_PROMISC; 973 974 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt); 975 976 /* I'm not sure how to tune these. */ 977 #if 0 978 /* 979 * Leave this one alone for now; setting it 980 * wrong causes lockups on some machines/controllers. 981 */ 982 kue_setword(sc, KUE_CMD_SET_SOFS, 1); 983 #endif 984 kue_setword(sc, KUE_CMD_SET_URB_SIZE, 64); 985 986 /* Init TX ring. */ 987 if (kue_tx_list_init(sc) == ENOBUFS) { 988 printf("%s: tx list init failed\n", USBDEVNAME(sc->kue_dev)); 989 splx(s); 990 return; 991 } 992 993 /* Init RX ring. */ 994 if (kue_rx_list_init(sc) == ENOBUFS) { 995 printf("%s: rx list init failed\n", USBDEVNAME(sc->kue_dev)); 996 splx(s); 997 return; 998 } 999 1000 /* Load the multicast filter. */ 1001 kue_setmulti(sc); 1002 1003 if (sc->kue_ep[KUE_ENDPT_RX] == NULL) { 1004 if (kue_open_pipes(sc)) { 1005 splx(s); 1006 return; 1007 } 1008 } 1009 1010 ifp->if_flags |= IFF_RUNNING; 1011 ifp->if_flags &= ~IFF_OACTIVE; 1012 1013 splx(s); 1014 } 1015 1016 Static int 1017 kue_open_pipes(struct kue_softc *sc) 1018 { 1019 usbd_status err; 1020 struct kue_chain *c; 1021 int i; 1022 1023 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 1024 1025 /* Open RX and TX pipes. */ 1026 err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_RX], 1027 USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_RX]); 1028 if (err) { 1029 printf("%s: open rx pipe failed: %s\n", 1030 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1031 return (EIO); 1032 } 1033 1034 err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_TX], 1035 USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_TX]); 1036 if (err) { 1037 printf("%s: open tx pipe failed: %s\n", 1038 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1039 return (EIO); 1040 } 1041 1042 /* Start up the receive pipe. */ 1043 for (i = 0; i < KUE_RX_LIST_CNT; i++) { 1044 c = &sc->kue_cdata.kue_rx_chain[i]; 1045 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX], 1046 c, c->kue_buf, KUE_BUFSZ, 1047 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, 1048 kue_rxeof); 1049 DPRINTFN(5,("%s: %s: start read\n", USBDEVNAME(sc->kue_dev), 1050 __func__)); 1051 usbd_transfer(c->kue_xfer); 1052 } 1053 1054 return (0); 1055 } 1056 1057 Static int 1058 kue_ioctl(struct ifnet *ifp, u_long command, void *data) 1059 { 1060 struct kue_softc *sc = ifp->if_softc; 1061 struct ifaddr *ifa = (struct ifaddr *)data; 1062 struct ifreq *ifr = (struct ifreq *)data; 1063 int s, error = 0; 1064 1065 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 1066 1067 if (sc->kue_dying) 1068 return (EIO); 1069 1070 #ifdef DIAGNOSTIC 1071 if (!curproc) { 1072 printf("%s: no proc!!\n", USBDEVNAME(sc->kue_dev)); 1073 return EIO; 1074 } 1075 #endif 1076 1077 s = splnet(); 1078 1079 switch(command) { 1080 case SIOCSIFADDR: 1081 ifp->if_flags |= IFF_UP; 1082 kue_init(sc); 1083 1084 switch (ifa->ifa_addr->sa_family) { 1085 #ifdef INET 1086 case AF_INET: 1087 #if defined(__NetBSD__) 1088 arp_ifinit(ifp, ifa); 1089 #else 1090 arp_ifinit(&sc->arpcom, ifa); 1091 #endif 1092 break; 1093 #endif /* INET */ 1094 } 1095 break; 1096 1097 case SIOCSIFMTU: 1098 if (ifr->ifr_mtu > ETHERMTU) 1099 error = EINVAL; 1100 else 1101 ifp->if_mtu = ifr->ifr_mtu; 1102 break; 1103 1104 case SIOCSIFFLAGS: 1105 if (ifp->if_flags & IFF_UP) { 1106 if (ifp->if_flags & IFF_RUNNING && 1107 ifp->if_flags & IFF_PROMISC && 1108 !(sc->kue_if_flags & IFF_PROMISC)) { 1109 sc->kue_rxfilt |= KUE_RXFILT_PROMISC; 1110 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, 1111 sc->kue_rxfilt); 1112 } else if (ifp->if_flags & IFF_RUNNING && 1113 !(ifp->if_flags & IFF_PROMISC) && 1114 sc->kue_if_flags & IFF_PROMISC) { 1115 sc->kue_rxfilt &= ~KUE_RXFILT_PROMISC; 1116 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, 1117 sc->kue_rxfilt); 1118 } else if (!(ifp->if_flags & IFF_RUNNING)) 1119 kue_init(sc); 1120 } else { 1121 if (ifp->if_flags & IFF_RUNNING) 1122 kue_stop(sc); 1123 } 1124 sc->kue_if_flags = ifp->if_flags; 1125 error = 0; 1126 break; 1127 case SIOCADDMULTI: 1128 case SIOCDELMULTI: 1129 kue_setmulti(sc); 1130 error = 0; 1131 break; 1132 default: 1133 error = EINVAL; 1134 break; 1135 } 1136 1137 splx(s); 1138 1139 return (error); 1140 } 1141 1142 Static void 1143 kue_watchdog(struct ifnet *ifp) 1144 { 1145 struct kue_softc *sc = ifp->if_softc; 1146 struct kue_chain *c; 1147 usbd_status stat; 1148 int s; 1149 1150 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 1151 1152 if (sc->kue_dying) 1153 return; 1154 1155 ifp->if_oerrors++; 1156 printf("%s: watchdog timeout\n", USBDEVNAME(sc->kue_dev)); 1157 1158 s = splusb(); 1159 c = &sc->kue_cdata.kue_tx_chain[0]; 1160 usbd_get_xfer_status(c->kue_xfer, NULL, NULL, NULL, &stat); 1161 kue_txeof(c->kue_xfer, c, stat); 1162 1163 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1164 kue_start(ifp); 1165 splx(s); 1166 } 1167 1168 /* 1169 * Stop the adapter and free any mbufs allocated to the 1170 * RX and TX lists. 1171 */ 1172 Static void 1173 kue_stop(struct kue_softc *sc) 1174 { 1175 usbd_status err; 1176 struct ifnet *ifp; 1177 int i; 1178 1179 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 1180 1181 ifp = GET_IFP(sc); 1182 ifp->if_timer = 0; 1183 1184 /* Stop transfers. */ 1185 if (sc->kue_ep[KUE_ENDPT_RX] != NULL) { 1186 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_RX]); 1187 if (err) { 1188 printf("%s: abort rx pipe failed: %s\n", 1189 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1190 } 1191 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_RX]); 1192 if (err) { 1193 printf("%s: close rx pipe failed: %s\n", 1194 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1195 } 1196 sc->kue_ep[KUE_ENDPT_RX] = NULL; 1197 } 1198 1199 if (sc->kue_ep[KUE_ENDPT_TX] != NULL) { 1200 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_TX]); 1201 if (err) { 1202 printf("%s: abort tx pipe failed: %s\n", 1203 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1204 } 1205 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_TX]); 1206 if (err) { 1207 printf("%s: close tx pipe failed: %s\n", 1208 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1209 } 1210 sc->kue_ep[KUE_ENDPT_TX] = NULL; 1211 } 1212 1213 if (sc->kue_ep[KUE_ENDPT_INTR] != NULL) { 1214 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_INTR]); 1215 if (err) { 1216 printf("%s: abort intr pipe failed: %s\n", 1217 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1218 } 1219 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_INTR]); 1220 if (err) { 1221 printf("%s: close intr pipe failed: %s\n", 1222 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1223 } 1224 sc->kue_ep[KUE_ENDPT_INTR] = NULL; 1225 } 1226 1227 /* Free RX resources. */ 1228 for (i = 0; i < KUE_RX_LIST_CNT; i++) { 1229 if (sc->kue_cdata.kue_rx_chain[i].kue_mbuf != NULL) { 1230 m_freem(sc->kue_cdata.kue_rx_chain[i].kue_mbuf); 1231 sc->kue_cdata.kue_rx_chain[i].kue_mbuf = NULL; 1232 } 1233 if (sc->kue_cdata.kue_rx_chain[i].kue_xfer != NULL) { 1234 usbd_free_xfer(sc->kue_cdata.kue_rx_chain[i].kue_xfer); 1235 sc->kue_cdata.kue_rx_chain[i].kue_xfer = NULL; 1236 } 1237 } 1238 1239 /* Free TX resources. */ 1240 for (i = 0; i < KUE_TX_LIST_CNT; i++) { 1241 if (sc->kue_cdata.kue_tx_chain[i].kue_mbuf != NULL) { 1242 m_freem(sc->kue_cdata.kue_tx_chain[i].kue_mbuf); 1243 sc->kue_cdata.kue_tx_chain[i].kue_mbuf = NULL; 1244 } 1245 if (sc->kue_cdata.kue_tx_chain[i].kue_xfer != NULL) { 1246 usbd_free_xfer(sc->kue_cdata.kue_tx_chain[i].kue_xfer); 1247 sc->kue_cdata.kue_tx_chain[i].kue_xfer = NULL; 1248 } 1249 } 1250 1251 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1252 } 1253