1 /* $OpenBSD: if_mos.c,v 1.27 2014/12/22 02:28:52 tedu Exp $ */ 2 3 /* 4 * Copyright (c) 2008 Johann Christian Rode <jcrode@gmx.net> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 /* 20 * Copyright (c) 2005, 2006, 2007 Jonathan Gray <jsg@openbsd.org> 21 * 22 * Permission to use, copy, modify, and distribute this software for any 23 * purpose with or without fee is hereby granted, provided that the above 24 * copyright notice and this permission notice appear in all copies. 25 * 26 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 27 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 28 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 29 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 30 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 31 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 32 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 33 */ 34 35 /* 36 * Copyright (c) 1997, 1998, 1999, 2000-2003 37 * Bill Paul <wpaul@windriver.com>. All rights reserved. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 3. All advertising materials mentioning features or use of this software 48 * must display the following acknowledgement: 49 * This product includes software developed by Bill Paul. 50 * 4. Neither the name of the author nor the names of any co-contributors 51 * may be used to endorse or promote products derived from this software 52 * without specific prior written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 57 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 58 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 59 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 60 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 61 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 62 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 63 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 64 * THE POSSIBILITY OF SUCH DAMAGE. 65 */ 66 67 /* 68 * Moschip MCS7730/MCS7830/MCS7832 USB to Ethernet controller 69 * The datasheet is available at the following URL: 70 * http://www.moschip.com/data/products/MCS7830/Data%20Sheet_7830.pdf 71 */ 72 73 #include "bpfilter.h" 74 75 #include <sys/param.h> 76 #include <sys/systm.h> 77 #include <sys/sockio.h> 78 #include <sys/rwlock.h> 79 #include <sys/mbuf.h> 80 #include <sys/kernel.h> 81 #include <sys/socket.h> 82 83 #include <sys/device.h> 84 85 #include <machine/bus.h> 86 87 #include <net/if.h> 88 #include <net/if_dl.h> 89 #include <net/if_media.h> 90 91 #if NBPFILTER > 0 92 #include <net/bpf.h> 93 #endif 94 95 #include <netinet/in.h> 96 #include <netinet/if_ether.h> 97 98 #include <dev/mii/mii.h> 99 #include <dev/mii/miivar.h> 100 101 #include <dev/usb/usb.h> 102 #include <dev/usb/usbdi.h> 103 #include <dev/usb/usbdi_util.h> 104 #include <dev/usb/usbdivar.h> 105 #include <dev/usb/usbdevs.h> 106 107 #include <dev/usb/if_mosreg.h> 108 109 #ifdef MOS_DEBUG 110 #define DPRINTF(x) do { if (mosdebug) printf x; } while (0) 111 #define DPRINTFN(n,x) do { if (mosdebug >= (n)) printf x; } while (0) 112 int mosdebug = 0; 113 #else 114 #define DPRINTF(x) 115 #define DPRINTFN(n,x) 116 #endif 117 118 /* 119 * Various supported device vendors/products. 120 */ 121 const struct mos_type mos_devs[] = { 122 { { USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7730 }, MCS7730 }, 123 { { USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7830 }, MCS7830 }, 124 { { USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7832 }, MCS7832 }, 125 { { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_LN030 }, MCS7830 }, 126 }; 127 #define mos_lookup(v, p) ((struct mos_type *)usb_lookup(mos_devs, v, p)) 128 129 int mos_match(struct device *, void *, void *); 130 void mos_attach(struct device *, struct device *, void *); 131 int mos_detach(struct device *, int); 132 133 struct cfdriver mos_cd = { 134 NULL, "mos", DV_IFNET 135 }; 136 137 const struct cfattach mos_ca = { 138 sizeof(struct mos_softc), mos_match, mos_attach, mos_detach 139 }; 140 141 int mos_tx_list_init(struct mos_softc *); 142 int mos_rx_list_init(struct mos_softc *); 143 struct mbuf *mos_newbuf(void); 144 int mos_encap(struct mos_softc *, struct mbuf *, int); 145 void mos_rxeof(struct usbd_xfer *, void *, usbd_status); 146 void mos_txeof(struct usbd_xfer *, void *, usbd_status); 147 void mos_tick(void *); 148 void mos_tick_task(void *); 149 void mos_start(struct ifnet *); 150 int mos_ioctl(struct ifnet *, u_long, caddr_t); 151 void mos_init(void *); 152 void mos_chip_init(struct mos_softc *); 153 void mos_stop(struct mos_softc *); 154 void mos_watchdog(struct ifnet *); 155 int mos_miibus_readreg(struct device *, int, int); 156 void mos_miibus_writereg(struct device *, int, int, int); 157 void mos_miibus_statchg(struct device *); 158 int mos_ifmedia_upd(struct ifnet *); 159 void mos_ifmedia_sts(struct ifnet *, struct ifmediareq *); 160 void mos_reset(struct mos_softc *sc); 161 162 int mos_reg_read_1(struct mos_softc *, int); 163 int mos_reg_read_2(struct mos_softc *, int); 164 int mos_reg_write_1(struct mos_softc *, int, int); 165 int mos_reg_write_2(struct mos_softc *, int, int); 166 int mos_readmac(struct mos_softc *, u_char *); 167 int mos_writemac(struct mos_softc *, u_char *); 168 int mos_write_mcast(struct mos_softc *, u_char *); 169 170 void mos_iff(struct mos_softc *); 171 void mos_lock_mii(struct mos_softc *); 172 void mos_unlock_mii(struct mos_softc *); 173 174 /* 175 * Get exclusive access to the MII registers 176 */ 177 void 178 mos_lock_mii(struct mos_softc *sc) 179 { 180 sc->mos_refcnt++; 181 rw_enter_write(&sc->mos_mii_lock); 182 } 183 184 void 185 mos_unlock_mii(struct mos_softc *sc) 186 { 187 rw_exit_write(&sc->mos_mii_lock); 188 if (--sc->mos_refcnt < 0) 189 usb_detach_wakeup(&sc->mos_dev); 190 } 191 192 int 193 mos_reg_read_1(struct mos_softc *sc, int reg) 194 { 195 usb_device_request_t req; 196 usbd_status err; 197 uByte val = 0; 198 199 if (usbd_is_dying(sc->mos_udev)) 200 return(0); 201 202 req.bmRequestType = UT_READ_VENDOR_DEVICE; 203 req.bRequest = MOS_UR_READREG; 204 USETW(req.wValue, 0); 205 USETW(req.wIndex, reg); 206 USETW(req.wLength, 1); 207 208 err = usbd_do_request(sc->mos_udev, &req, &val); 209 210 if (err) { 211 DPRINTF(("mos_reg_read_1 error, reg: %d\n", reg)); 212 return (-1); 213 } 214 215 return (val); 216 } 217 218 int 219 mos_reg_read_2(struct mos_softc *sc, int reg) 220 { 221 usb_device_request_t req; 222 usbd_status err; 223 uWord val; 224 225 USETW(val,0); 226 227 if (usbd_is_dying(sc->mos_udev)) 228 return(0); 229 230 req.bmRequestType = UT_READ_VENDOR_DEVICE; 231 req.bRequest = MOS_UR_READREG; 232 USETW(req.wValue, 0); 233 USETW(req.wIndex, reg); 234 USETW(req.wLength, 2); 235 236 err = usbd_do_request(sc->mos_udev, &req, &val); 237 238 if (err) { 239 DPRINTF(("mos_reg_read_2 error, reg: %d\n", reg)); 240 return (-1); 241 } 242 243 return(UGETW(val)); 244 } 245 246 int 247 mos_reg_write_1(struct mos_softc *sc, int reg, int aval) 248 { 249 usb_device_request_t req; 250 usbd_status err; 251 uByte val; 252 253 val = aval; 254 255 if (usbd_is_dying(sc->mos_udev)) 256 return(0); 257 258 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 259 req.bRequest = MOS_UR_WRITEREG; 260 USETW(req.wValue, 0); 261 USETW(req.wIndex, reg); 262 USETW(req.wLength, 1); 263 264 err = usbd_do_request(sc->mos_udev, &req, &val); 265 266 if (err) { 267 DPRINTF(("mos_reg_write_1 error, reg: %d\n", reg)); 268 return (-1); 269 } 270 271 return(0); 272 } 273 274 int 275 mos_reg_write_2(struct mos_softc *sc, int reg, int aval) 276 { 277 usb_device_request_t req; 278 usbd_status err; 279 uWord val; 280 281 USETW(val, aval); 282 283 if (usbd_is_dying(sc->mos_udev)) 284 return (0); 285 286 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 287 req.bRequest = MOS_UR_WRITEREG; 288 USETW(req.wValue, 0); 289 USETW(req.wIndex, reg); 290 USETW(req.wLength, 2); 291 292 err = usbd_do_request(sc->mos_udev, &req, &val); 293 294 if (err) { 295 DPRINTF(("mos_reg_write_2 error, reg: %d\n", reg)); 296 return (-1); 297 } 298 299 return (0); 300 } 301 302 int 303 mos_readmac(struct mos_softc *sc, u_char *mac) 304 { 305 usb_device_request_t req; 306 usbd_status err; 307 308 if (usbd_is_dying(sc->mos_udev)) 309 return(0); 310 311 req.bmRequestType = UT_READ_VENDOR_DEVICE; 312 req.bRequest = MOS_UR_READREG; 313 USETW(req.wValue, 0); 314 USETW(req.wIndex, MOS_MAC); 315 USETW(req.wLength, ETHER_ADDR_LEN); 316 317 err = usbd_do_request(sc->mos_udev, &req, mac); 318 319 if (err) { 320 DPRINTF(("mos_readmac error")); 321 return (-1); 322 } 323 324 return (0); 325 } 326 327 int 328 mos_writemac(struct mos_softc *sc, u_char *mac) 329 { 330 usb_device_request_t req; 331 usbd_status err; 332 333 if (usbd_is_dying(sc->mos_udev)) 334 return(0); 335 336 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 337 req.bRequest = MOS_UR_WRITEREG; 338 USETW(req.wValue, 0); 339 USETW(req.wIndex, MOS_MAC); 340 USETW(req.wLength, ETHER_ADDR_LEN); 341 342 err = usbd_do_request(sc->mos_udev, &req, mac); 343 344 if (err) { 345 DPRINTF(("mos_writemac error")); 346 return (-1); 347 } 348 349 return (0); 350 } 351 352 int 353 mos_write_mcast(struct mos_softc *sc, u_char *hashtbl) 354 { 355 usb_device_request_t req; 356 usbd_status err; 357 358 if (usbd_is_dying(sc->mos_udev)) 359 return(0); 360 361 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 362 req.bRequest = MOS_UR_WRITEREG; 363 USETW(req.wValue, 0); 364 USETW(req.wIndex, MOS_MCAST_TABLE); 365 USETW(req.wLength, 8); 366 367 err = usbd_do_request(sc->mos_udev, &req, hashtbl); 368 369 if (err) { 370 DPRINTF(("mos_reg_mcast error\n")); 371 return(-1); 372 } 373 374 return(0); 375 } 376 377 int 378 mos_miibus_readreg(struct device *dev, int phy, int reg) 379 { 380 struct mos_softc *sc = (void *)dev; 381 uWord val; 382 int i,res; 383 384 if (usbd_is_dying(sc->mos_udev)) { 385 DPRINTF(("mos: dying\n")); 386 return (0); 387 } 388 389 USETW(val, 0); 390 391 mos_lock_mii(sc); 392 393 mos_reg_write_2(sc, MOS_PHY_DATA, 0); 394 mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) | 395 MOS_PHYCTL_READ); 396 mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) | 397 MOS_PHYSTS_PENDING); 398 399 for (i = 0; i < MOS_TIMEOUT; i++) { 400 if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY) 401 break; 402 } 403 if (i == MOS_TIMEOUT) { 404 printf("%s: MII read timeout\n", sc->mos_dev.dv_xname); 405 } 406 407 res = mos_reg_read_2(sc, MOS_PHY_DATA); 408 409 mos_unlock_mii(sc); 410 411 return (res); 412 } 413 414 void 415 mos_miibus_writereg(struct device *dev, int phy, int reg, int val) 416 { 417 struct mos_softc *sc = (void *)dev; 418 int i; 419 420 if (usbd_is_dying(sc->mos_udev)) 421 return; 422 423 mos_lock_mii(sc); 424 425 mos_reg_write_2(sc, MOS_PHY_DATA, val); 426 mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) | 427 MOS_PHYCTL_WRITE); 428 mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) | 429 MOS_PHYSTS_PENDING); 430 431 for (i = 0; i < MOS_TIMEOUT; i++) { 432 if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY) 433 break; 434 } 435 if (i == MOS_TIMEOUT) { 436 printf("%s: MII write timeout\n", sc->mos_dev.dv_xname); 437 } 438 439 mos_unlock_mii(sc); 440 441 return; 442 } 443 444 void 445 mos_miibus_statchg(struct device *dev) 446 { 447 struct mos_softc *sc = (void *)dev; 448 struct mii_data *mii = GET_MII(sc); 449 int val, err; 450 451 mos_lock_mii(sc); 452 453 /* disable RX, TX prior to changing FDX, SPEEDSEL */ 454 val = mos_reg_read_1(sc, MOS_CTL); 455 val &= ~(MOS_CTL_TX_ENB | MOS_CTL_RX_ENB); 456 mos_reg_write_1(sc, MOS_CTL, val); 457 458 /* reset register which counts dropped frames */ 459 mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0); 460 461 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 462 val |= MOS_CTL_FDX_ENB; 463 else 464 val &= ~(MOS_CTL_FDX_ENB); 465 466 switch (IFM_SUBTYPE(mii->mii_media_active)) { 467 case IFM_100_TX: 468 val |= MOS_CTL_SPEEDSEL; 469 break; 470 case IFM_10_T: 471 val &= ~(MOS_CTL_SPEEDSEL); 472 break; 473 } 474 475 /* re-enable TX, RX */ 476 val |= (MOS_CTL_TX_ENB | MOS_CTL_RX_ENB); 477 err = mos_reg_write_1(sc, MOS_CTL, val); 478 mos_unlock_mii(sc); 479 480 if (err) { 481 printf("%s: media change failed\n", sc->mos_dev.dv_xname); 482 return; 483 } 484 } 485 486 /* 487 * Set media options. 488 */ 489 int 490 mos_ifmedia_upd(struct ifnet *ifp) 491 { 492 struct mos_softc *sc = ifp->if_softc; 493 struct mii_data *mii = GET_MII(sc); 494 495 sc->mos_link = 0; 496 if (mii->mii_instance) { 497 struct mii_softc *miisc; 498 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 499 mii_phy_reset(miisc); 500 } 501 mii_mediachg(mii); 502 503 return (0); 504 } 505 506 /* 507 * Report current media status. 508 */ 509 void 510 mos_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 511 { 512 struct mos_softc *sc = ifp->if_softc; 513 struct mii_data *mii = GET_MII(sc); 514 515 mii_pollstat(mii); 516 ifmr->ifm_active = mii->mii_media_active; 517 ifmr->ifm_status = mii->mii_media_status; 518 } 519 520 void 521 mos_iff(struct mos_softc *sc) 522 { 523 struct ifnet *ifp = GET_IFP(sc); 524 struct arpcom *ac = &sc->arpcom; 525 struct ether_multi *enm; 526 struct ether_multistep step; 527 u_int32_t h = 0; 528 u_int8_t rxmode, hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 529 530 if (usbd_is_dying(sc->mos_udev)) 531 return; 532 533 rxmode = mos_reg_read_1(sc, MOS_CTL); 534 rxmode &= ~(MOS_CTL_ALLMULTI | MOS_CTL_RX_PROMISC); 535 ifp->if_flags &= ~IFF_ALLMULTI; 536 537 if (ifp->if_flags & IFF_PROMISC || ac->ac_multirangecnt > 0) { 538 ifp->if_flags |= IFF_ALLMULTI; 539 rxmode |= MOS_CTL_ALLMULTI; 540 if (ifp->if_flags & IFF_PROMISC) 541 rxmode |= MOS_CTL_RX_PROMISC; 542 } else { 543 /* now program new ones */ 544 ETHER_FIRST_MULTI(step, ac, enm); 545 while (enm != NULL) { 546 h = ether_crc32_be(enm->enm_addrlo, ETHER_ADDR_LEN) >> 26; 547 548 hashtbl[h / 8] |= 1 << (h % 8); 549 550 ETHER_NEXT_MULTI(step, enm); 551 } 552 } 553 554 /* 555 * The datasheet claims broadcast frames were always accepted 556 * regardless of filter settings. But the hardware seems to 557 * filter broadcast frames, so pass them explicitly. 558 */ 559 h = ether_crc32_be(etherbroadcastaddr, ETHER_ADDR_LEN) >> 26; 560 hashtbl[h / 8] |= 1 << (h % 8); 561 562 mos_write_mcast(sc, (void *)&hashtbl); 563 mos_reg_write_1(sc, MOS_CTL, rxmode); 564 } 565 566 void 567 mos_reset(struct mos_softc *sc) 568 { 569 u_int8_t ctl; 570 if (usbd_is_dying(sc->mos_udev)) 571 return; 572 573 ctl = mos_reg_read_1(sc, MOS_CTL); 574 ctl &= ~(MOS_CTL_RX_PROMISC | MOS_CTL_ALLMULTI | MOS_CTL_TX_ENB | 575 MOS_CTL_RX_ENB); 576 /* Disable RX, TX, promiscuous and allmulticast mode */ 577 mos_reg_write_1(sc, MOS_CTL, ctl); 578 579 /* Reset frame drop counter register to zero */ 580 mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0); 581 582 /* Wait a little while for the chip to get its brains in order. */ 583 DELAY(1000); 584 return; 585 } 586 587 void 588 mos_chip_init(struct mos_softc *sc) 589 { 590 int i; 591 592 /* 593 * Rev.C devices have a pause threshold register which needs to be set 594 * at startup. 595 */ 596 if (mos_reg_read_1(sc, MOS_PAUSE_TRHD) != -1) { 597 for (i=0;i<MOS_PAUSE_REWRITES;i++) 598 mos_reg_write_1(sc, MOS_PAUSE_TRHD, 0); 599 } 600 601 sc->mos_phyaddrs[0] = 1; sc->mos_phyaddrs[1] = 0xFF; 602 } 603 604 /* 605 * Probe for a MCS7x30 chip. 606 */ 607 int 608 mos_match(struct device *parent, void *match, void *aux) 609 { 610 struct usb_attach_arg *uaa = aux; 611 612 if (!uaa->iface) 613 return(UMATCH_NONE); 614 615 return (mos_lookup(uaa->vendor, uaa->product) != NULL ? 616 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 617 } 618 619 /* 620 * Attach the interface. Allocate softc structures, do ifmedia 621 * setup and ethernet/BPF attach. 622 */ 623 void 624 mos_attach(struct device *parent, struct device *self, void *aux) 625 { 626 struct mos_softc *sc = (struct mos_softc *)self; 627 struct usb_attach_arg *uaa = aux; 628 struct ifnet *ifp; 629 struct usbd_device *dev = uaa->device; 630 usbd_status err; 631 usb_interface_descriptor_t *id; 632 usb_endpoint_descriptor_t *ed; 633 struct mii_data *mii; 634 u_char eaddr[ETHER_ADDR_LEN]; 635 int i,s; 636 637 sc->mos_udev = dev; 638 sc->mos_unit = self->dv_unit; 639 640 err = usbd_set_config_no(dev, MOS_CONFIG_NO, 1); 641 if (err) { 642 printf("%s: getting interface handle failed\n", 643 sc->mos_dev.dv_xname); 644 return; 645 } 646 647 usb_init_task(&sc->mos_tick_task, mos_tick_task, sc, 648 USB_TASK_TYPE_GENERIC); 649 rw_init(&sc->mos_mii_lock, "mosmii"); 650 usb_init_task(&sc->mos_stop_task, (void (*)(void *))mos_stop, sc, 651 USB_TASK_TYPE_GENERIC); 652 653 err = usbd_device2interface_handle(dev, MOS_IFACE_IDX, &sc->mos_iface); 654 if (err) { 655 printf("%s: getting interface handle failed\n", 656 sc->mos_dev.dv_xname); 657 return; 658 } 659 660 sc->mos_flags = mos_lookup(uaa->vendor, uaa->product)->mos_flags; 661 662 id = usbd_get_interface_descriptor(sc->mos_iface); 663 664 sc->mos_bufsz = MOS_BUFSZ; 665 666 /* Find endpoints. */ 667 for (i = 0; i < id->bNumEndpoints; i++) { 668 ed = usbd_interface2endpoint_descriptor(sc->mos_iface, i); 669 if (!ed) { 670 printf("%s: couldn't get ep %d\n", 671 sc->mos_dev.dv_xname, i); 672 return; 673 } 674 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 675 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 676 sc->mos_ed[MOS_ENDPT_RX] = ed->bEndpointAddress; 677 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 678 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 679 sc->mos_ed[MOS_ENDPT_TX] = ed->bEndpointAddress; 680 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 681 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 682 sc->mos_ed[MOS_ENDPT_INTR] = ed->bEndpointAddress; 683 } 684 } 685 686 s = splnet(); 687 688 printf("%s:", sc->mos_dev.dv_xname); 689 690 if (sc->mos_flags & MCS7730) 691 printf(" MCS7730"); 692 else if (sc->mos_flags & MCS7830) 693 printf(" MCS7830"); 694 else if (sc->mos_flags & MCS7832) 695 printf(" MCS7832"); 696 697 mos_chip_init(sc); 698 699 /* 700 * Read MAC address, inform the world. 701 */ 702 err = mos_readmac(sc, (void*)&eaddr); 703 if (err) { 704 printf("%s: couldn't get MAC address\n", 705 sc->mos_dev.dv_xname); 706 return; 707 } 708 bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN); 709 printf(", address %s\n", ether_sprintf(eaddr)); 710 711 /* Initialize interface info.*/ 712 ifp = GET_IFP(sc); 713 ifp->if_softc = sc; 714 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 715 ifp->if_ioctl = mos_ioctl; 716 ifp->if_start = mos_start; 717 ifp->if_watchdog = mos_watchdog; 718 strlcpy(ifp->if_xname, sc->mos_dev.dv_xname, IFNAMSIZ); 719 720 IFQ_SET_READY(&ifp->if_snd); 721 722 ifp->if_capabilities = IFCAP_VLAN_MTU; 723 724 /* Initialize MII/media info. */ 725 mii = GET_MII(sc); 726 mii->mii_ifp = ifp; 727 mii->mii_readreg = mos_miibus_readreg; 728 mii->mii_writereg = mos_miibus_writereg; 729 mii->mii_statchg = mos_miibus_statchg; 730 mii->mii_flags = MIIF_AUTOTSLEEP; 731 732 ifmedia_init(&mii->mii_media, 0, mos_ifmedia_upd, mos_ifmedia_sts); 733 mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0); 734 735 if (LIST_FIRST(&mii->mii_phys) == NULL) { 736 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL); 737 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE); 738 } else 739 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO); 740 741 /* Attach the interface. */ 742 if_attach(ifp); 743 ether_ifattach(ifp); 744 745 timeout_set(&sc->mos_stat_ch, mos_tick, sc); 746 747 splx(s); 748 } 749 750 int 751 mos_detach(struct device *self, int flags) 752 { 753 struct mos_softc *sc = (struct mos_softc *)self; 754 struct ifnet *ifp = GET_IFP(sc); 755 int s; 756 757 DPRINTFN(2,("%s: %s: enter\n", sc->mos_dev.dv_xname, __func__)); 758 759 if (timeout_initialized(&sc->mos_stat_ch)) 760 timeout_del(&sc->mos_stat_ch); 761 762 if (sc->mos_ep[MOS_ENDPT_TX] != NULL) 763 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_TX]); 764 if (sc->mos_ep[MOS_ENDPT_RX] != NULL) 765 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_RX]); 766 if (sc->mos_ep[MOS_ENDPT_INTR] != NULL) 767 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_INTR]); 768 769 /* 770 * Remove any pending tasks. They cannot be executing because they run 771 * in the same thread as detach. 772 */ 773 usb_rem_task(sc->mos_udev, &sc->mos_tick_task); 774 usb_rem_task(sc->mos_udev, &sc->mos_stop_task); 775 s = splusb(); 776 777 if (--sc->mos_refcnt >= 0) { 778 /* Wait for processes to go away */ 779 usb_detach_wait(&sc->mos_dev); 780 } 781 782 if (ifp->if_flags & IFF_RUNNING) 783 mos_stop(sc); 784 785 mii_detach(&sc->mos_mii, MII_PHY_ANY, MII_OFFSET_ANY); 786 ifmedia_delete_instance(&sc->mos_mii.mii_media, IFM_INST_ANY); 787 if (ifp->if_softc != NULL) { 788 ether_ifdetach(ifp); 789 if_detach(ifp); 790 } 791 792 #ifdef DIAGNOSTIC 793 if (sc->mos_ep[MOS_ENDPT_TX] != NULL || 794 sc->mos_ep[MOS_ENDPT_RX] != NULL || 795 sc->mos_ep[MOS_ENDPT_INTR] != NULL) 796 printf("%s: detach has active endpoints\n", 797 sc->mos_dev.dv_xname); 798 #endif 799 800 if (--sc->mos_refcnt >= 0) { 801 /* Wait for processes to go away. */ 802 usb_detach_wait(&sc->mos_dev); 803 } 804 splx(s); 805 806 return (0); 807 } 808 809 struct mbuf * 810 mos_newbuf(void) 811 { 812 struct mbuf *m; 813 814 MGETHDR(m, M_DONTWAIT, MT_DATA); 815 if (m == NULL) 816 return (NULL); 817 818 MCLGET(m, M_DONTWAIT); 819 if (!(m->m_flags & M_EXT)) { 820 m_freem(m); 821 return (NULL); 822 } 823 824 m->m_len = m->m_pkthdr.len = MCLBYTES; 825 m_adj(m, ETHER_ALIGN); 826 827 return (m); 828 } 829 830 int 831 mos_rx_list_init(struct mos_softc *sc) 832 { 833 struct mos_cdata *cd; 834 struct mos_chain *c; 835 int i; 836 837 DPRINTF(("%s: %s: enter\n", sc->mos_dev.dv_xname, __func__)); 838 839 cd = &sc->mos_cdata; 840 for (i = 0; i < MOS_RX_LIST_CNT; i++) { 841 c = &cd->mos_rx_chain[i]; 842 c->mos_sc = sc; 843 c->mos_idx = i; 844 c->mos_mbuf = NULL; 845 if (c->mos_xfer == NULL) { 846 c->mos_xfer = usbd_alloc_xfer(sc->mos_udev); 847 if (c->mos_xfer == NULL) 848 return (ENOBUFS); 849 c->mos_buf = usbd_alloc_buffer(c->mos_xfer, 850 sc->mos_bufsz); 851 if (c->mos_buf == NULL) { 852 usbd_free_xfer(c->mos_xfer); 853 return (ENOBUFS); 854 } 855 } 856 } 857 858 return (0); 859 } 860 861 int 862 mos_tx_list_init(struct mos_softc *sc) 863 { 864 struct mos_cdata *cd; 865 struct mos_chain *c; 866 int i; 867 868 DPRINTF(("%s: %s: enter\n", sc->mos_dev.dv_xname, __func__)); 869 870 cd = &sc->mos_cdata; 871 for (i = 0; i < MOS_TX_LIST_CNT; i++) { 872 c = &cd->mos_tx_chain[i]; 873 c->mos_sc = sc; 874 c->mos_idx = i; 875 c->mos_mbuf = NULL; 876 if (c->mos_xfer == NULL) { 877 c->mos_xfer = usbd_alloc_xfer(sc->mos_udev); 878 if (c->mos_xfer == NULL) 879 return (ENOBUFS); 880 c->mos_buf = usbd_alloc_buffer(c->mos_xfer, 881 sc->mos_bufsz); 882 if (c->mos_buf == NULL) { 883 usbd_free_xfer(c->mos_xfer); 884 return (ENOBUFS); 885 } 886 } 887 } 888 889 return (0); 890 } 891 892 /* 893 * A frame has been uploaded: pass the resulting mbuf chain up to 894 * the higher level protocols. 895 */ 896 void 897 mos_rxeof(struct usbd_xfer *xfer, void *priv, usbd_status status) 898 { 899 struct mos_chain *c = (struct mos_chain *)priv; 900 struct mos_softc *sc = c->mos_sc; 901 struct ifnet *ifp = GET_IFP(sc); 902 u_char *buf = c->mos_buf; 903 u_int8_t rxstat; 904 u_int32_t total_len; 905 u_int16_t pktlen = 0; 906 struct mbuf *m; 907 int s; 908 909 DPRINTFN(10,("%s: %s: enter\n", sc->mos_dev.dv_xname,__func__)); 910 911 if (usbd_is_dying(sc->mos_udev)) 912 return; 913 914 if (!(ifp->if_flags & IFF_RUNNING)) 915 return; 916 917 if (status != USBD_NORMAL_COMPLETION) { 918 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 919 return; 920 if (usbd_ratecheck(&sc->mos_rx_notice)) { 921 printf("%s: usb errors on rx: %s\n", 922 sc->mos_dev.dv_xname, usbd_errstr(status)); 923 } 924 if (status == USBD_STALLED) 925 usbd_clear_endpoint_stall_async(sc->mos_ep[MOS_ENDPT_RX]); 926 goto done; 927 } 928 929 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 930 931 if (total_len <= 1) 932 goto done; 933 934 /* evaluate status byte at the end */ 935 pktlen = total_len - 1; 936 rxstat = buf[pktlen] & MOS_RXSTS_MASK; 937 938 if (rxstat != MOS_RXSTS_VALID) { 939 DPRINTF(("%s: erroneous frame received: ", 940 sc->mos_dev.dv_xname)); 941 if (rxstat & MOS_RXSTS_SHORT_FRAME) 942 DPRINTF(("frame size less than 64 bytes\n")); 943 if (rxstat & MOS_RXSTS_LARGE_FRAME) 944 DPRINTF(("frame size larger than 1532 bytes\n")); 945 if (rxstat & MOS_RXSTS_CRC_ERROR) 946 DPRINTF(("CRC error\n")); 947 if (rxstat & MOS_RXSTS_ALIGN_ERROR) 948 DPRINTF(("alignment error\n")); 949 ifp->if_ierrors++; 950 goto done; 951 } 952 953 if ( pktlen < sizeof(struct ether_header) ) { 954 ifp->if_ierrors++; 955 goto done; 956 } 957 958 m = mos_newbuf(); 959 if (m == NULL) { 960 ifp->if_ierrors++; 961 goto done; 962 } 963 964 ifp->if_ipackets++; 965 m->m_pkthdr.rcvif = ifp; 966 m->m_pkthdr.len = m->m_len = pktlen; 967 968 memcpy(mtod(m, char *), buf, pktlen); 969 970 /* push the packet up */ 971 s = splnet(); 972 #if NBPFILTER > 0 973 if (ifp->if_bpf) 974 bpf_mtap(ifp->if_bpf, m, BPF_DIRECTION_IN); 975 #endif 976 977 ether_input_mbuf(ifp, m); 978 979 splx(s); 980 981 done: 982 memset(c->mos_buf, 0, sc->mos_bufsz); 983 984 /* Setup new transfer. */ 985 usbd_setup_xfer(xfer, sc->mos_ep[MOS_ENDPT_RX], 986 c, c->mos_buf, sc->mos_bufsz, 987 USBD_SHORT_XFER_OK | USBD_NO_COPY, 988 USBD_NO_TIMEOUT, mos_rxeof); 989 usbd_transfer(xfer); 990 991 DPRINTFN(10,("%s: %s: start rx\n", sc->mos_dev.dv_xname, __func__)); 992 993 return; 994 } 995 996 /* 997 * A frame was downloaded to the chip. It's safe for us to clean up 998 * the list buffers. 999 */ 1000 1001 void 1002 mos_txeof(struct usbd_xfer *xfer, void *priv, usbd_status status) 1003 { 1004 struct mos_softc *sc; 1005 struct mos_chain *c; 1006 struct ifnet *ifp; 1007 int s; 1008 1009 c = priv; 1010 sc = c->mos_sc; 1011 ifp = &sc->arpcom.ac_if; 1012 1013 if (usbd_is_dying(sc->mos_udev)) 1014 return; 1015 1016 s = splnet(); 1017 1018 if (status != USBD_NORMAL_COMPLETION) { 1019 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 1020 splx(s); 1021 return; 1022 } 1023 ifp->if_oerrors++; 1024 printf("%s: usb error on tx: %s\n", sc->mos_dev.dv_xname, 1025 usbd_errstr(status)); 1026 if (status == USBD_STALLED) 1027 usbd_clear_endpoint_stall_async(sc->mos_ep[MOS_ENDPT_TX]); 1028 splx(s); 1029 return; 1030 } 1031 1032 ifp->if_timer = 0; 1033 ifp->if_flags &= ~IFF_OACTIVE; 1034 1035 m_freem(c->mos_mbuf); 1036 c->mos_mbuf = NULL; 1037 1038 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1039 mos_start(ifp); 1040 1041 ifp->if_opackets++; 1042 splx(s); 1043 return; 1044 } 1045 1046 void 1047 mos_tick(void *xsc) 1048 { 1049 struct mos_softc *sc = xsc; 1050 1051 if (sc == NULL) 1052 return; 1053 1054 DPRINTFN(0xff, ("%s: %s: enter\n", sc->mos_dev.dv_xname, 1055 __func__)); 1056 1057 if (usbd_is_dying(sc->mos_udev)) 1058 return; 1059 1060 /* Perform periodic stuff in process context */ 1061 usb_add_task(sc->mos_udev, &sc->mos_tick_task); 1062 1063 } 1064 1065 void 1066 mos_tick_task(void *xsc) 1067 { 1068 int s; 1069 struct mos_softc *sc; 1070 struct ifnet *ifp; 1071 struct mii_data *mii; 1072 1073 sc = xsc; 1074 1075 if (sc == NULL) 1076 return; 1077 1078 if (usbd_is_dying(sc->mos_udev)) 1079 return; 1080 1081 ifp = GET_IFP(sc); 1082 mii = GET_MII(sc); 1083 if (mii == NULL) 1084 return; 1085 1086 s = splnet(); 1087 1088 mii_tick(mii); 1089 if (!sc->mos_link && mii->mii_media_status & IFM_ACTIVE && 1090 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 1091 DPRINTF(("%s: %s: got link\n", 1092 sc->mos_dev.dv_xname, __func__)); 1093 sc->mos_link++; 1094 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1095 mos_start(ifp); 1096 } 1097 1098 timeout_add_sec(&sc->mos_stat_ch, 1); 1099 1100 splx(s); 1101 } 1102 1103 int 1104 mos_encap(struct mos_softc *sc, struct mbuf *m, int idx) 1105 { 1106 struct mos_chain *c; 1107 usbd_status err; 1108 int length; 1109 1110 c = &sc->mos_cdata.mos_tx_chain[idx]; 1111 1112 m_copydata(m, 0, m->m_pkthdr.len, c->mos_buf); 1113 length = m->m_pkthdr.len; 1114 1115 c->mos_mbuf = m; 1116 1117 usbd_setup_xfer(c->mos_xfer, sc->mos_ep[MOS_ENDPT_TX], 1118 c, c->mos_buf, length, USBD_FORCE_SHORT_XFER | USBD_NO_COPY, 1119 10000, mos_txeof); 1120 1121 /* Transmit */ 1122 err = usbd_transfer(c->mos_xfer); 1123 if (err != USBD_IN_PROGRESS) { 1124 mos_stop(sc); 1125 return(EIO); 1126 } 1127 1128 sc->mos_cdata.mos_tx_cnt++; 1129 1130 return(0); 1131 } 1132 1133 void 1134 mos_start(struct ifnet *ifp) 1135 { 1136 struct mos_softc *sc; 1137 struct mbuf *m_head = NULL; 1138 1139 sc = ifp->if_softc; 1140 1141 if (!sc->mos_link) 1142 return; 1143 1144 if (ifp->if_flags & IFF_OACTIVE) 1145 return; 1146 1147 IFQ_POLL(&ifp->if_snd, m_head); 1148 if (m_head == NULL) 1149 return; 1150 1151 if (mos_encap(sc, m_head, 0)) { 1152 ifp->if_flags |= IFF_OACTIVE; 1153 return; 1154 } 1155 IFQ_DEQUEUE(&ifp->if_snd, m_head); 1156 1157 /* 1158 * If there's a BPF listener, bounce a copy of this frame 1159 * to him. 1160 */ 1161 #if NBPFILTER > 0 1162 if (ifp->if_bpf) 1163 bpf_mtap(ifp->if_bpf, m_head, BPF_DIRECTION_OUT); 1164 #endif 1165 1166 ifp->if_flags |= IFF_OACTIVE; 1167 1168 /* 1169 * Set a timeout in case the chip goes out to lunch. 1170 */ 1171 ifp->if_timer = 5; 1172 1173 return; 1174 } 1175 1176 void 1177 mos_init(void *xsc) 1178 { 1179 struct mos_softc *sc = xsc; 1180 struct ifnet *ifp = &sc->arpcom.ac_if; 1181 struct mos_chain *c; 1182 usbd_status err; 1183 u_int8_t rxmode; 1184 int i, s; 1185 1186 s = splnet(); 1187 1188 /* 1189 * Cancel pending I/O and free all RX/TX buffers. 1190 */ 1191 mos_reset(sc); 1192 1193 /* 1194 * Write MAC address 1195 */ 1196 mos_writemac(sc, sc->arpcom.ac_enaddr); 1197 1198 /* Init RX ring. */ 1199 if (mos_rx_list_init(sc) == ENOBUFS) { 1200 printf("%s: rx list init failed\n", sc->mos_dev.dv_xname); 1201 splx(s); 1202 return; 1203 } 1204 1205 /* Init TX ring. */ 1206 if (mos_tx_list_init(sc) == ENOBUFS) { 1207 printf("%s: tx list init failed\n", sc->mos_dev.dv_xname); 1208 splx(s); 1209 return; 1210 } 1211 1212 /* Read and set transmitter IPG values */ 1213 sc->mos_ipgs[0] = mos_reg_read_1(sc, MOS_IPG0); 1214 sc->mos_ipgs[1] = mos_reg_read_1(sc, MOS_IPG1); 1215 mos_reg_write_1(sc, MOS_IPG0, sc->mos_ipgs[0]); 1216 mos_reg_write_1(sc, MOS_IPG1, sc->mos_ipgs[1]); 1217 1218 /* Program promiscuous mode and multicast filters. */ 1219 mos_iff(sc); 1220 1221 /* Enable receiver and transmitter, bridge controls speed/duplex mode */ 1222 rxmode = mos_reg_read_1(sc, MOS_CTL); 1223 rxmode |= MOS_CTL_RX_ENB | MOS_CTL_TX_ENB | MOS_CTL_BS_ENB; 1224 rxmode &= ~(MOS_CTL_SLEEP); 1225 mos_reg_write_1(sc, MOS_CTL, rxmode); 1226 1227 mii_mediachg(GET_MII(sc)); 1228 1229 /* Open RX and TX pipes. */ 1230 err = usbd_open_pipe(sc->mos_iface, sc->mos_ed[MOS_ENDPT_RX], 1231 USBD_EXCLUSIVE_USE, &sc->mos_ep[MOS_ENDPT_RX]); 1232 if (err) { 1233 printf("%s: open rx pipe failed: %s\n", 1234 sc->mos_dev.dv_xname, usbd_errstr(err)); 1235 splx(s); 1236 return; 1237 } 1238 1239 err = usbd_open_pipe(sc->mos_iface, sc->mos_ed[MOS_ENDPT_TX], 1240 USBD_EXCLUSIVE_USE, &sc->mos_ep[MOS_ENDPT_TX]); 1241 if (err) { 1242 printf("%s: open tx pipe failed: %s\n", 1243 sc->mos_dev.dv_xname, usbd_errstr(err)); 1244 splx(s); 1245 return; 1246 } 1247 1248 /* Start up the receive pipe. */ 1249 for (i = 0; i < MOS_RX_LIST_CNT; i++) { 1250 c = &sc->mos_cdata.mos_rx_chain[i]; 1251 usbd_setup_xfer(c->mos_xfer, sc->mos_ep[MOS_ENDPT_RX], 1252 c, c->mos_buf, sc->mos_bufsz, 1253 USBD_SHORT_XFER_OK | USBD_NO_COPY, 1254 USBD_NO_TIMEOUT, mos_rxeof); 1255 usbd_transfer(c->mos_xfer); 1256 } 1257 1258 ifp->if_flags |= IFF_RUNNING; 1259 ifp->if_flags &= ~IFF_OACTIVE; 1260 1261 splx(s); 1262 1263 timeout_add_sec(&sc->mos_stat_ch, 1); 1264 return; 1265 } 1266 1267 int 1268 mos_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1269 { 1270 struct mos_softc *sc = ifp->if_softc; 1271 struct ifreq *ifr = (struct ifreq *)data; 1272 struct ifaddr *ifa = (struct ifaddr *)data; 1273 int s, error = 0; 1274 1275 s = splnet(); 1276 1277 switch(cmd) { 1278 case SIOCSIFADDR: 1279 ifp->if_flags |= IFF_UP; 1280 if (!(ifp->if_flags & IFF_RUNNING)) 1281 mos_init(sc); 1282 if (ifa->ifa_addr->sa_family == AF_INET) 1283 arp_ifinit(&sc->arpcom, ifa); 1284 break; 1285 1286 case SIOCSIFFLAGS: 1287 if (ifp->if_flags & IFF_UP) { 1288 if (ifp->if_flags & IFF_RUNNING) 1289 error = ENETRESET; 1290 else 1291 mos_init(sc); 1292 } else { 1293 if (ifp->if_flags & IFF_RUNNING) 1294 mos_stop(sc); 1295 } 1296 break; 1297 1298 case SIOCGIFMEDIA: 1299 case SIOCSIFMEDIA: 1300 error = ifmedia_ioctl(ifp, ifr, &sc->mos_mii.mii_media, cmd); 1301 break; 1302 1303 default: 1304 error = ether_ioctl(ifp, &sc->arpcom, cmd, data); 1305 } 1306 1307 if (error == ENETRESET) { 1308 if (ifp->if_flags & IFF_RUNNING) 1309 mos_iff(sc); 1310 error = 0; 1311 } 1312 1313 splx(s); 1314 return(error); 1315 } 1316 1317 void 1318 mos_watchdog(struct ifnet *ifp) 1319 { 1320 struct mos_softc *sc; 1321 struct mos_chain *c; 1322 usbd_status stat; 1323 int s; 1324 1325 sc = ifp->if_softc; 1326 1327 ifp->if_oerrors++; 1328 printf("%s: watchdog timeout\n", sc->mos_dev.dv_xname); 1329 1330 s = splusb(); 1331 c = &sc->mos_cdata.mos_tx_chain[0]; 1332 usbd_get_xfer_status(c->mos_xfer, NULL, NULL, NULL, &stat); 1333 mos_txeof(c->mos_xfer, c, stat); 1334 1335 if (!IFQ_IS_EMPTY(&ifp->if_snd)) 1336 mos_start(ifp); 1337 splx(s); 1338 } 1339 1340 1341 /* 1342 * Stop the adapter and free any mbufs allocated to the 1343 * RX and TX lists. 1344 */ 1345 void 1346 mos_stop(struct mos_softc *sc) 1347 { 1348 usbd_status err; 1349 struct ifnet *ifp; 1350 int i; 1351 1352 mos_reset(sc); 1353 1354 ifp = &sc->arpcom.ac_if; 1355 ifp->if_timer = 0; 1356 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1357 1358 timeout_del(&sc->mos_stat_ch); 1359 1360 /* Stop transfers. */ 1361 if (sc->mos_ep[MOS_ENDPT_RX] != NULL) { 1362 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_RX]); 1363 err = usbd_close_pipe(sc->mos_ep[MOS_ENDPT_RX]); 1364 if (err) { 1365 printf("%s: close rx pipe failed: %s\n", 1366 sc->mos_dev.dv_xname, usbd_errstr(err)); 1367 } 1368 sc->mos_ep[MOS_ENDPT_RX] = NULL; 1369 } 1370 1371 if (sc->mos_ep[MOS_ENDPT_TX] != NULL) { 1372 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_TX]); 1373 err = usbd_close_pipe(sc->mos_ep[MOS_ENDPT_TX]); 1374 if (err) { 1375 printf("%s: close tx pipe failed: %s\n", 1376 sc->mos_dev.dv_xname, usbd_errstr(err)); 1377 } 1378 sc->mos_ep[MOS_ENDPT_TX] = NULL; 1379 } 1380 1381 if (sc->mos_ep[MOS_ENDPT_INTR] != NULL) { 1382 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_INTR]); 1383 err = usbd_close_pipe(sc->mos_ep[MOS_ENDPT_INTR]); 1384 if (err) { 1385 printf("%s: close intr pipe failed: %s\n", 1386 sc->mos_dev.dv_xname, usbd_errstr(err)); 1387 } 1388 sc->mos_ep[MOS_ENDPT_INTR] = NULL; 1389 } 1390 1391 /* Free RX resources. */ 1392 for (i = 0; i < MOS_RX_LIST_CNT; i++) { 1393 if (sc->mos_cdata.mos_rx_chain[i].mos_mbuf != NULL) { 1394 m_freem(sc->mos_cdata.mos_rx_chain[i].mos_mbuf); 1395 sc->mos_cdata.mos_rx_chain[i].mos_mbuf = NULL; 1396 } 1397 if (sc->mos_cdata.mos_rx_chain[i].mos_xfer != NULL) { 1398 usbd_free_xfer(sc->mos_cdata.mos_rx_chain[i].mos_xfer); 1399 sc->mos_cdata.mos_rx_chain[i].mos_xfer = NULL; 1400 } 1401 } 1402 1403 /* Free TX resources. */ 1404 for (i = 0; i < MOS_TX_LIST_CNT; i++) { 1405 if (sc->mos_cdata.mos_tx_chain[i].mos_mbuf != NULL) { 1406 m_freem(sc->mos_cdata.mos_tx_chain[i].mos_mbuf); 1407 sc->mos_cdata.mos_tx_chain[i].mos_mbuf = NULL; 1408 } 1409 if (sc->mos_cdata.mos_tx_chain[i].mos_xfer != NULL) { 1410 usbd_free_xfer(sc->mos_cdata.mos_tx_chain[i].mos_xfer); 1411 sc->mos_cdata.mos_tx_chain[i].mos_xfer = NULL; 1412 } 1413 } 1414 1415 sc->mos_link = 0; 1416 } 1417 1418