1 /* $OpenBSD: if_mos.c,v 1.38 2017/01/22 10:17:39 dlg 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_media.h> 89 90 #if NBPFILTER > 0 91 #include <net/bpf.h> 92 #endif 93 94 #include <netinet/in.h> 95 #include <netinet/if_ether.h> 96 97 #include <dev/mii/miivar.h> 98 99 #include <dev/usb/usb.h> 100 #include <dev/usb/usbdi.h> 101 #include <dev/usb/usbdi_util.h> 102 #include <dev/usb/usbdivar.h> 103 #include <dev/usb/usbdevs.h> 104 105 #include <dev/usb/if_mosreg.h> 106 107 #ifdef MOS_DEBUG 108 #define DPRINTF(x) do { if (mosdebug) printf x; } while (0) 109 #define DPRINTFN(n,x) do { if (mosdebug >= (n)) printf x; } while (0) 110 int mosdebug = 0; 111 #else 112 #define DPRINTF(x) 113 #define DPRINTFN(n,x) 114 #endif 115 116 /* 117 * Various supported device vendors/products. 118 */ 119 const struct mos_type mos_devs[] = { 120 { { USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7730 }, MCS7730 }, 121 { { USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7830 }, MCS7830 }, 122 { { USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7832 }, MCS7832 }, 123 { { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_LN030 }, MCS7830 }, 124 }; 125 #define mos_lookup(v, p) ((struct mos_type *)usb_lookup(mos_devs, v, p)) 126 127 int mos_match(struct device *, void *, void *); 128 void mos_attach(struct device *, struct device *, void *); 129 int mos_detach(struct device *, int); 130 131 struct cfdriver mos_cd = { 132 NULL, "mos", DV_IFNET 133 }; 134 135 const struct cfattach mos_ca = { 136 sizeof(struct mos_softc), mos_match, mos_attach, mos_detach 137 }; 138 139 int mos_tx_list_init(struct mos_softc *); 140 int mos_rx_list_init(struct mos_softc *); 141 struct mbuf *mos_newbuf(void); 142 int mos_encap(struct mos_softc *, struct mbuf *, int); 143 void mos_rxeof(struct usbd_xfer *, void *, usbd_status); 144 void mos_txeof(struct usbd_xfer *, void *, usbd_status); 145 void mos_tick(void *); 146 void mos_tick_task(void *); 147 void mos_start(struct ifnet *); 148 int mos_ioctl(struct ifnet *, u_long, caddr_t); 149 void mos_init(void *); 150 void mos_chip_init(struct mos_softc *); 151 void mos_stop(struct mos_softc *); 152 void mos_watchdog(struct ifnet *); 153 int mos_miibus_readreg(struct device *, int, int); 154 void mos_miibus_writereg(struct device *, int, int, int); 155 void mos_miibus_statchg(struct device *); 156 int mos_ifmedia_upd(struct ifnet *); 157 void mos_ifmedia_sts(struct ifnet *, struct ifmediareq *); 158 void mos_reset(struct mos_softc *sc); 159 160 int mos_reg_read_1(struct mos_softc *, int); 161 int mos_reg_read_2(struct mos_softc *, int); 162 int mos_reg_write_1(struct mos_softc *, int, int); 163 int mos_reg_write_2(struct mos_softc *, int, int); 164 int mos_readmac(struct mos_softc *, u_char *); 165 int mos_writemac(struct mos_softc *, u_char *); 166 int mos_write_mcast(struct mos_softc *, u_char *); 167 168 void mos_iff(struct mos_softc *); 169 void mos_lock_mii(struct mos_softc *); 170 void mos_unlock_mii(struct mos_softc *); 171 172 /* 173 * Get exclusive access to the MII registers 174 */ 175 void 176 mos_lock_mii(struct mos_softc *sc) 177 { 178 sc->mos_refcnt++; 179 rw_enter_write(&sc->mos_mii_lock); 180 } 181 182 void 183 mos_unlock_mii(struct mos_softc *sc) 184 { 185 rw_exit_write(&sc->mos_mii_lock); 186 if (--sc->mos_refcnt < 0) 187 usb_detach_wakeup(&sc->mos_dev); 188 } 189 190 int 191 mos_reg_read_1(struct mos_softc *sc, int reg) 192 { 193 usb_device_request_t req; 194 usbd_status err; 195 uByte val = 0; 196 197 if (usbd_is_dying(sc->mos_udev)) 198 return(0); 199 200 req.bmRequestType = UT_READ_VENDOR_DEVICE; 201 req.bRequest = MOS_UR_READREG; 202 USETW(req.wValue, 0); 203 USETW(req.wIndex, reg); 204 USETW(req.wLength, 1); 205 206 err = usbd_do_request(sc->mos_udev, &req, &val); 207 208 if (err) { 209 DPRINTF(("mos_reg_read_1 error, reg: %d\n", reg)); 210 return (-1); 211 } 212 213 return (val); 214 } 215 216 int 217 mos_reg_read_2(struct mos_softc *sc, int reg) 218 { 219 usb_device_request_t req; 220 usbd_status err; 221 uWord val; 222 223 USETW(val,0); 224 225 if (usbd_is_dying(sc->mos_udev)) 226 return(0); 227 228 req.bmRequestType = UT_READ_VENDOR_DEVICE; 229 req.bRequest = MOS_UR_READREG; 230 USETW(req.wValue, 0); 231 USETW(req.wIndex, reg); 232 USETW(req.wLength, 2); 233 234 err = usbd_do_request(sc->mos_udev, &req, &val); 235 236 if (err) { 237 DPRINTF(("mos_reg_read_2 error, reg: %d\n", reg)); 238 return (-1); 239 } 240 241 return(UGETW(val)); 242 } 243 244 int 245 mos_reg_write_1(struct mos_softc *sc, int reg, int aval) 246 { 247 usb_device_request_t req; 248 usbd_status err; 249 uByte val; 250 251 val = aval; 252 253 if (usbd_is_dying(sc->mos_udev)) 254 return(0); 255 256 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 257 req.bRequest = MOS_UR_WRITEREG; 258 USETW(req.wValue, 0); 259 USETW(req.wIndex, reg); 260 USETW(req.wLength, 1); 261 262 err = usbd_do_request(sc->mos_udev, &req, &val); 263 264 if (err) { 265 DPRINTF(("mos_reg_write_1 error, reg: %d\n", reg)); 266 return (-1); 267 } 268 269 return(0); 270 } 271 272 int 273 mos_reg_write_2(struct mos_softc *sc, int reg, int aval) 274 { 275 usb_device_request_t req; 276 usbd_status err; 277 uWord val; 278 279 USETW(val, aval); 280 281 if (usbd_is_dying(sc->mos_udev)) 282 return (0); 283 284 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 285 req.bRequest = MOS_UR_WRITEREG; 286 USETW(req.wValue, 0); 287 USETW(req.wIndex, reg); 288 USETW(req.wLength, 2); 289 290 err = usbd_do_request(sc->mos_udev, &req, &val); 291 292 if (err) { 293 DPRINTF(("mos_reg_write_2 error, reg: %d\n", reg)); 294 return (-1); 295 } 296 297 return (0); 298 } 299 300 int 301 mos_readmac(struct mos_softc *sc, u_char *mac) 302 { 303 usb_device_request_t req; 304 usbd_status err; 305 306 if (usbd_is_dying(sc->mos_udev)) 307 return(0); 308 309 req.bmRequestType = UT_READ_VENDOR_DEVICE; 310 req.bRequest = MOS_UR_READREG; 311 USETW(req.wValue, 0); 312 USETW(req.wIndex, MOS_MAC); 313 USETW(req.wLength, ETHER_ADDR_LEN); 314 315 err = usbd_do_request(sc->mos_udev, &req, mac); 316 317 if (err) { 318 DPRINTF(("mos_readmac error")); 319 return (-1); 320 } 321 322 return (0); 323 } 324 325 int 326 mos_writemac(struct mos_softc *sc, u_char *mac) 327 { 328 usb_device_request_t req; 329 usbd_status err; 330 331 if (usbd_is_dying(sc->mos_udev)) 332 return(0); 333 334 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 335 req.bRequest = MOS_UR_WRITEREG; 336 USETW(req.wValue, 0); 337 USETW(req.wIndex, MOS_MAC); 338 USETW(req.wLength, ETHER_ADDR_LEN); 339 340 err = usbd_do_request(sc->mos_udev, &req, mac); 341 342 if (err) { 343 DPRINTF(("mos_writemac error")); 344 return (-1); 345 } 346 347 return (0); 348 } 349 350 int 351 mos_write_mcast(struct mos_softc *sc, u_char *hashtbl) 352 { 353 usb_device_request_t req; 354 usbd_status err; 355 356 if (usbd_is_dying(sc->mos_udev)) 357 return(0); 358 359 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 360 req.bRequest = MOS_UR_WRITEREG; 361 USETW(req.wValue, 0); 362 USETW(req.wIndex, MOS_MCAST_TABLE); 363 USETW(req.wLength, 8); 364 365 err = usbd_do_request(sc->mos_udev, &req, hashtbl); 366 367 if (err) { 368 DPRINTF(("mos_reg_mcast error\n")); 369 return(-1); 370 } 371 372 return(0); 373 } 374 375 int 376 mos_miibus_readreg(struct device *dev, int phy, int reg) 377 { 378 struct mos_softc *sc = (void *)dev; 379 uWord val; 380 int i,res; 381 382 if (usbd_is_dying(sc->mos_udev)) { 383 DPRINTF(("mos: dying\n")); 384 return (0); 385 } 386 387 USETW(val, 0); 388 389 mos_lock_mii(sc); 390 391 mos_reg_write_2(sc, MOS_PHY_DATA, 0); 392 mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) | 393 MOS_PHYCTL_READ); 394 mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) | 395 MOS_PHYSTS_PENDING); 396 397 for (i = 0; i < MOS_TIMEOUT; i++) { 398 if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY) 399 break; 400 } 401 if (i == MOS_TIMEOUT) { 402 printf("%s: MII read timeout\n", sc->mos_dev.dv_xname); 403 } 404 405 res = mos_reg_read_2(sc, MOS_PHY_DATA); 406 407 mos_unlock_mii(sc); 408 409 return (res); 410 } 411 412 void 413 mos_miibus_writereg(struct device *dev, int phy, int reg, int val) 414 { 415 struct mos_softc *sc = (void *)dev; 416 int i; 417 418 if (usbd_is_dying(sc->mos_udev)) 419 return; 420 421 mos_lock_mii(sc); 422 423 mos_reg_write_2(sc, MOS_PHY_DATA, val); 424 mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) | 425 MOS_PHYCTL_WRITE); 426 mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) | 427 MOS_PHYSTS_PENDING); 428 429 for (i = 0; i < MOS_TIMEOUT; i++) { 430 if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY) 431 break; 432 } 433 if (i == MOS_TIMEOUT) { 434 printf("%s: MII write timeout\n", sc->mos_dev.dv_xname); 435 } 436 437 mos_unlock_mii(sc); 438 439 return; 440 } 441 442 void 443 mos_miibus_statchg(struct device *dev) 444 { 445 struct mos_softc *sc = (void *)dev; 446 struct mii_data *mii = GET_MII(sc); 447 int val, err; 448 449 mos_lock_mii(sc); 450 451 /* disable RX, TX prior to changing FDX, SPEEDSEL */ 452 val = mos_reg_read_1(sc, MOS_CTL); 453 val &= ~(MOS_CTL_TX_ENB | MOS_CTL_RX_ENB); 454 mos_reg_write_1(sc, MOS_CTL, val); 455 456 /* reset register which counts dropped frames */ 457 mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0); 458 459 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 460 val |= MOS_CTL_FDX_ENB; 461 else 462 val &= ~(MOS_CTL_FDX_ENB); 463 464 switch (IFM_SUBTYPE(mii->mii_media_active)) { 465 case IFM_100_TX: 466 val |= MOS_CTL_SPEEDSEL; 467 break; 468 case IFM_10_T: 469 val &= ~(MOS_CTL_SPEEDSEL); 470 break; 471 } 472 473 /* re-enable TX, RX */ 474 val |= (MOS_CTL_TX_ENB | MOS_CTL_RX_ENB); 475 err = mos_reg_write_1(sc, MOS_CTL, val); 476 mos_unlock_mii(sc); 477 478 if (err) { 479 printf("%s: media change failed\n", sc->mos_dev.dv_xname); 480 return; 481 } 482 } 483 484 /* 485 * Set media options. 486 */ 487 int 488 mos_ifmedia_upd(struct ifnet *ifp) 489 { 490 struct mos_softc *sc = ifp->if_softc; 491 struct mii_data *mii = GET_MII(sc); 492 493 sc->mos_link = 0; 494 if (mii->mii_instance) { 495 struct mii_softc *miisc; 496 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 497 mii_phy_reset(miisc); 498 } 499 mii_mediachg(mii); 500 501 return (0); 502 } 503 504 /* 505 * Report current media status. 506 */ 507 void 508 mos_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 509 { 510 struct mos_softc *sc = ifp->if_softc; 511 struct mii_data *mii = GET_MII(sc); 512 513 mii_pollstat(mii); 514 ifmr->ifm_active = mii->mii_media_active; 515 ifmr->ifm_status = mii->mii_media_status; 516 } 517 518 void 519 mos_iff(struct mos_softc *sc) 520 { 521 struct ifnet *ifp = GET_IFP(sc); 522 struct arpcom *ac = &sc->arpcom; 523 struct ether_multi *enm; 524 struct ether_multistep step; 525 u_int32_t h = 0; 526 u_int8_t rxmode, hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 527 528 if (usbd_is_dying(sc->mos_udev)) 529 return; 530 531 rxmode = mos_reg_read_1(sc, MOS_CTL); 532 rxmode &= ~(MOS_CTL_ALLMULTI | MOS_CTL_RX_PROMISC); 533 ifp->if_flags &= ~IFF_ALLMULTI; 534 535 if (ifp->if_flags & IFF_PROMISC || ac->ac_multirangecnt > 0) { 536 ifp->if_flags |= IFF_ALLMULTI; 537 rxmode |= MOS_CTL_ALLMULTI; 538 if (ifp->if_flags & IFF_PROMISC) 539 rxmode |= MOS_CTL_RX_PROMISC; 540 } else { 541 /* now program new ones */ 542 ETHER_FIRST_MULTI(step, ac, enm); 543 while (enm != NULL) { 544 h = ether_crc32_be(enm->enm_addrlo, ETHER_ADDR_LEN) >> 26; 545 546 hashtbl[h / 8] |= 1 << (h % 8); 547 548 ETHER_NEXT_MULTI(step, enm); 549 } 550 } 551 552 /* 553 * The datasheet claims broadcast frames were always accepted 554 * regardless of filter settings. But the hardware seems to 555 * filter broadcast frames, so pass them explicitly. 556 */ 557 h = ether_crc32_be(etherbroadcastaddr, ETHER_ADDR_LEN) >> 26; 558 hashtbl[h / 8] |= 1 << (h % 8); 559 560 mos_write_mcast(sc, (void *)&hashtbl); 561 mos_reg_write_1(sc, MOS_CTL, rxmode); 562 } 563 564 void 565 mos_reset(struct mos_softc *sc) 566 { 567 u_int8_t ctl; 568 if (usbd_is_dying(sc->mos_udev)) 569 return; 570 571 ctl = mos_reg_read_1(sc, MOS_CTL); 572 ctl &= ~(MOS_CTL_RX_PROMISC | MOS_CTL_ALLMULTI | MOS_CTL_TX_ENB | 573 MOS_CTL_RX_ENB); 574 /* Disable RX, TX, promiscuous and allmulticast mode */ 575 mos_reg_write_1(sc, MOS_CTL, ctl); 576 577 /* Reset frame drop counter register to zero */ 578 mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0); 579 580 /* Wait a little while for the chip to get its brains in order. */ 581 DELAY(1000); 582 return; 583 } 584 585 void 586 mos_chip_init(struct mos_softc *sc) 587 { 588 int i; 589 590 /* 591 * Rev.C devices have a pause threshold register which needs to be set 592 * at startup. 593 */ 594 if (mos_reg_read_1(sc, MOS_PAUSE_TRHD) != -1) { 595 for (i=0;i<MOS_PAUSE_REWRITES;i++) 596 mos_reg_write_1(sc, MOS_PAUSE_TRHD, 0); 597 } 598 599 sc->mos_phyaddrs[0] = 1; sc->mos_phyaddrs[1] = 0xFF; 600 } 601 602 /* 603 * Probe for a MCS7x30 chip. 604 */ 605 int 606 mos_match(struct device *parent, void *match, void *aux) 607 { 608 struct usb_attach_arg *uaa = aux; 609 610 if (uaa->iface == NULL || uaa->configno != MOS_CONFIG_NO) 611 return(UMATCH_NONE); 612 613 return (mos_lookup(uaa->vendor, uaa->product) != NULL ? 614 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 615 } 616 617 /* 618 * Attach the interface. Allocate softc structures, do ifmedia 619 * setup and ethernet/BPF attach. 620 */ 621 void 622 mos_attach(struct device *parent, struct device *self, void *aux) 623 { 624 struct mos_softc *sc = (struct mos_softc *)self; 625 struct usb_attach_arg *uaa = aux; 626 struct ifnet *ifp; 627 struct usbd_device *dev = uaa->device; 628 usbd_status err; 629 usb_interface_descriptor_t *id; 630 usb_endpoint_descriptor_t *ed; 631 struct mii_data *mii; 632 u_char eaddr[ETHER_ADDR_LEN]; 633 int i,s; 634 635 sc->mos_udev = dev; 636 sc->mos_unit = self->dv_unit; 637 638 usb_init_task(&sc->mos_tick_task, mos_tick_task, sc, 639 USB_TASK_TYPE_GENERIC); 640 rw_init(&sc->mos_mii_lock, "mosmii"); 641 usb_init_task(&sc->mos_stop_task, (void (*)(void *))mos_stop, sc, 642 USB_TASK_TYPE_GENERIC); 643 644 err = usbd_device2interface_handle(dev, MOS_IFACE_IDX, &sc->mos_iface); 645 if (err) { 646 printf("%s: getting interface handle failed\n", 647 sc->mos_dev.dv_xname); 648 return; 649 } 650 651 sc->mos_flags = mos_lookup(uaa->vendor, uaa->product)->mos_flags; 652 653 id = usbd_get_interface_descriptor(sc->mos_iface); 654 655 sc->mos_bufsz = MOS_BUFSZ; 656 657 /* Find endpoints. */ 658 for (i = 0; i < id->bNumEndpoints; i++) { 659 ed = usbd_interface2endpoint_descriptor(sc->mos_iface, i); 660 if (!ed) { 661 printf("%s: couldn't get ep %d\n", 662 sc->mos_dev.dv_xname, i); 663 return; 664 } 665 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 666 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 667 sc->mos_ed[MOS_ENDPT_RX] = ed->bEndpointAddress; 668 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 669 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 670 sc->mos_ed[MOS_ENDPT_TX] = ed->bEndpointAddress; 671 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 672 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 673 sc->mos_ed[MOS_ENDPT_INTR] = ed->bEndpointAddress; 674 } 675 } 676 677 s = splnet(); 678 679 printf("%s:", sc->mos_dev.dv_xname); 680 681 if (sc->mos_flags & MCS7730) 682 printf(" MCS7730"); 683 else if (sc->mos_flags & MCS7830) 684 printf(" MCS7830"); 685 else if (sc->mos_flags & MCS7832) 686 printf(" MCS7832"); 687 688 mos_chip_init(sc); 689 690 /* 691 * Read MAC address, inform the world. 692 */ 693 err = mos_readmac(sc, (void*)&eaddr); 694 if (err) { 695 printf("%s: couldn't get MAC address\n", 696 sc->mos_dev.dv_xname); 697 splx(s); 698 return; 699 } 700 bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN); 701 printf(", address %s\n", ether_sprintf(eaddr)); 702 703 /* Initialize interface info.*/ 704 ifp = GET_IFP(sc); 705 ifp->if_softc = sc; 706 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 707 ifp->if_ioctl = mos_ioctl; 708 ifp->if_start = mos_start; 709 ifp->if_watchdog = mos_watchdog; 710 strlcpy(ifp->if_xname, sc->mos_dev.dv_xname, IFNAMSIZ); 711 712 ifp->if_capabilities = IFCAP_VLAN_MTU; 713 714 /* Initialize MII/media info. */ 715 mii = GET_MII(sc); 716 mii->mii_ifp = ifp; 717 mii->mii_readreg = mos_miibus_readreg; 718 mii->mii_writereg = mos_miibus_writereg; 719 mii->mii_statchg = mos_miibus_statchg; 720 mii->mii_flags = MIIF_AUTOTSLEEP; 721 722 ifmedia_init(&mii->mii_media, 0, mos_ifmedia_upd, mos_ifmedia_sts); 723 mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0); 724 725 if (LIST_FIRST(&mii->mii_phys) == NULL) { 726 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL); 727 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE); 728 } else 729 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO); 730 731 /* Attach the interface. */ 732 if_attach(ifp); 733 ether_ifattach(ifp); 734 735 timeout_set(&sc->mos_stat_ch, mos_tick, sc); 736 737 splx(s); 738 } 739 740 int 741 mos_detach(struct device *self, int flags) 742 { 743 struct mos_softc *sc = (struct mos_softc *)self; 744 struct ifnet *ifp = GET_IFP(sc); 745 int s; 746 747 DPRINTFN(2,("%s: %s: enter\n", sc->mos_dev.dv_xname, __func__)); 748 749 if (timeout_initialized(&sc->mos_stat_ch)) 750 timeout_del(&sc->mos_stat_ch); 751 752 if (sc->mos_ep[MOS_ENDPT_TX] != NULL) 753 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_TX]); 754 if (sc->mos_ep[MOS_ENDPT_RX] != NULL) 755 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_RX]); 756 if (sc->mos_ep[MOS_ENDPT_INTR] != NULL) 757 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_INTR]); 758 759 /* 760 * Remove any pending tasks. They cannot be executing because they run 761 * in the same thread as detach. 762 */ 763 usb_rem_task(sc->mos_udev, &sc->mos_tick_task); 764 usb_rem_task(sc->mos_udev, &sc->mos_stop_task); 765 s = splusb(); 766 767 if (--sc->mos_refcnt >= 0) { 768 /* Wait for processes to go away */ 769 usb_detach_wait(&sc->mos_dev); 770 } 771 772 if (ifp->if_flags & IFF_RUNNING) 773 mos_stop(sc); 774 775 mii_detach(&sc->mos_mii, MII_PHY_ANY, MII_OFFSET_ANY); 776 ifmedia_delete_instance(&sc->mos_mii.mii_media, IFM_INST_ANY); 777 if (ifp->if_softc != NULL) { 778 ether_ifdetach(ifp); 779 if_detach(ifp); 780 } 781 782 #ifdef DIAGNOSTIC 783 if (sc->mos_ep[MOS_ENDPT_TX] != NULL || 784 sc->mos_ep[MOS_ENDPT_RX] != NULL || 785 sc->mos_ep[MOS_ENDPT_INTR] != NULL) 786 printf("%s: detach has active endpoints\n", 787 sc->mos_dev.dv_xname); 788 #endif 789 790 if (--sc->mos_refcnt >= 0) { 791 /* Wait for processes to go away. */ 792 usb_detach_wait(&sc->mos_dev); 793 } 794 splx(s); 795 796 return (0); 797 } 798 799 struct mbuf * 800 mos_newbuf(void) 801 { 802 struct mbuf *m; 803 804 MGETHDR(m, M_DONTWAIT, MT_DATA); 805 if (m == NULL) 806 return (NULL); 807 808 MCLGET(m, M_DONTWAIT); 809 if (!(m->m_flags & M_EXT)) { 810 m_freem(m); 811 return (NULL); 812 } 813 814 m->m_len = m->m_pkthdr.len = MCLBYTES; 815 m_adj(m, ETHER_ALIGN); 816 817 return (m); 818 } 819 820 int 821 mos_rx_list_init(struct mos_softc *sc) 822 { 823 struct mos_cdata *cd; 824 struct mos_chain *c; 825 int i; 826 827 DPRINTF(("%s: %s: enter\n", sc->mos_dev.dv_xname, __func__)); 828 829 cd = &sc->mos_cdata; 830 for (i = 0; i < MOS_RX_LIST_CNT; i++) { 831 c = &cd->mos_rx_chain[i]; 832 c->mos_sc = sc; 833 c->mos_idx = i; 834 c->mos_mbuf = NULL; 835 if (c->mos_xfer == NULL) { 836 c->mos_xfer = usbd_alloc_xfer(sc->mos_udev); 837 if (c->mos_xfer == NULL) 838 return (ENOBUFS); 839 c->mos_buf = usbd_alloc_buffer(c->mos_xfer, 840 sc->mos_bufsz); 841 if (c->mos_buf == NULL) { 842 usbd_free_xfer(c->mos_xfer); 843 return (ENOBUFS); 844 } 845 } 846 } 847 848 return (0); 849 } 850 851 int 852 mos_tx_list_init(struct mos_softc *sc) 853 { 854 struct mos_cdata *cd; 855 struct mos_chain *c; 856 int i; 857 858 DPRINTF(("%s: %s: enter\n", sc->mos_dev.dv_xname, __func__)); 859 860 cd = &sc->mos_cdata; 861 for (i = 0; i < MOS_TX_LIST_CNT; i++) { 862 c = &cd->mos_tx_chain[i]; 863 c->mos_sc = sc; 864 c->mos_idx = i; 865 c->mos_mbuf = NULL; 866 if (c->mos_xfer == NULL) { 867 c->mos_xfer = usbd_alloc_xfer(sc->mos_udev); 868 if (c->mos_xfer == NULL) 869 return (ENOBUFS); 870 c->mos_buf = usbd_alloc_buffer(c->mos_xfer, 871 sc->mos_bufsz); 872 if (c->mos_buf == NULL) { 873 usbd_free_xfer(c->mos_xfer); 874 return (ENOBUFS); 875 } 876 } 877 } 878 879 return (0); 880 } 881 882 /* 883 * A frame has been uploaded: pass the resulting mbuf chain up to 884 * the higher level protocols. 885 */ 886 void 887 mos_rxeof(struct usbd_xfer *xfer, void *priv, usbd_status status) 888 { 889 struct mos_chain *c = (struct mos_chain *)priv; 890 struct mos_softc *sc = c->mos_sc; 891 struct ifnet *ifp = GET_IFP(sc); 892 u_char *buf = c->mos_buf; 893 u_int8_t rxstat; 894 u_int32_t total_len; 895 u_int16_t pktlen = 0; 896 struct mbuf_list ml = MBUF_LIST_INITIALIZER(); 897 struct mbuf *m; 898 int s; 899 900 DPRINTFN(10,("%s: %s: enter\n", sc->mos_dev.dv_xname,__func__)); 901 902 if (usbd_is_dying(sc->mos_udev)) 903 return; 904 905 if (!(ifp->if_flags & IFF_RUNNING)) 906 return; 907 908 if (status != USBD_NORMAL_COMPLETION) { 909 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 910 return; 911 if (usbd_ratecheck(&sc->mos_rx_notice)) { 912 printf("%s: usb errors on rx: %s\n", 913 sc->mos_dev.dv_xname, usbd_errstr(status)); 914 } 915 if (status == USBD_STALLED) 916 usbd_clear_endpoint_stall_async(sc->mos_ep[MOS_ENDPT_RX]); 917 goto done; 918 } 919 920 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 921 922 if (total_len <= 1) 923 goto done; 924 925 /* evaluate status byte at the end */ 926 pktlen = total_len - 1; 927 rxstat = buf[pktlen] & MOS_RXSTS_MASK; 928 929 if (rxstat != MOS_RXSTS_VALID) { 930 DPRINTF(("%s: erroneous frame received: ", 931 sc->mos_dev.dv_xname)); 932 if (rxstat & MOS_RXSTS_SHORT_FRAME) 933 DPRINTF(("frame size less than 64 bytes\n")); 934 if (rxstat & MOS_RXSTS_LARGE_FRAME) 935 DPRINTF(("frame size larger than 1532 bytes\n")); 936 if (rxstat & MOS_RXSTS_CRC_ERROR) 937 DPRINTF(("CRC error\n")); 938 if (rxstat & MOS_RXSTS_ALIGN_ERROR) 939 DPRINTF(("alignment error\n")); 940 ifp->if_ierrors++; 941 goto done; 942 } 943 944 if ( pktlen < sizeof(struct ether_header) ) { 945 ifp->if_ierrors++; 946 goto done; 947 } 948 949 m = mos_newbuf(); 950 if (m == NULL) { 951 ifp->if_ierrors++; 952 goto done; 953 } 954 955 m->m_pkthdr.len = m->m_len = pktlen; 956 957 memcpy(mtod(m, char *), buf, pktlen); 958 959 ml_enqueue(&ml, m); 960 961 s = splnet(); 962 if_input(ifp, &ml); 963 splx(s); 964 965 done: 966 memset(c->mos_buf, 0, sc->mos_bufsz); 967 968 /* Setup new transfer. */ 969 usbd_setup_xfer(xfer, sc->mos_ep[MOS_ENDPT_RX], 970 c, c->mos_buf, sc->mos_bufsz, 971 USBD_SHORT_XFER_OK | USBD_NO_COPY, 972 USBD_NO_TIMEOUT, mos_rxeof); 973 usbd_transfer(xfer); 974 975 DPRINTFN(10,("%s: %s: start rx\n", sc->mos_dev.dv_xname, __func__)); 976 977 return; 978 } 979 980 /* 981 * A frame was downloaded to the chip. It's safe for us to clean up 982 * the list buffers. 983 */ 984 985 void 986 mos_txeof(struct usbd_xfer *xfer, void *priv, usbd_status status) 987 { 988 struct mos_softc *sc; 989 struct mos_chain *c; 990 struct ifnet *ifp; 991 int s; 992 993 c = priv; 994 sc = c->mos_sc; 995 ifp = &sc->arpcom.ac_if; 996 997 if (usbd_is_dying(sc->mos_udev)) 998 return; 999 1000 s = splnet(); 1001 1002 if (status != USBD_NORMAL_COMPLETION) { 1003 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 1004 splx(s); 1005 return; 1006 } 1007 ifp->if_oerrors++; 1008 printf("%s: usb error on tx: %s\n", sc->mos_dev.dv_xname, 1009 usbd_errstr(status)); 1010 if (status == USBD_STALLED) 1011 usbd_clear_endpoint_stall_async(sc->mos_ep[MOS_ENDPT_TX]); 1012 splx(s); 1013 return; 1014 } 1015 1016 ifp->if_timer = 0; 1017 ifq_clr_oactive(&ifp->if_snd); 1018 1019 m_freem(c->mos_mbuf); 1020 c->mos_mbuf = NULL; 1021 1022 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1023 mos_start(ifp); 1024 1025 splx(s); 1026 return; 1027 } 1028 1029 void 1030 mos_tick(void *xsc) 1031 { 1032 struct mos_softc *sc = xsc; 1033 1034 if (sc == NULL) 1035 return; 1036 1037 DPRINTFN(0xff, ("%s: %s: enter\n", sc->mos_dev.dv_xname, 1038 __func__)); 1039 1040 if (usbd_is_dying(sc->mos_udev)) 1041 return; 1042 1043 /* Perform periodic stuff in process context */ 1044 usb_add_task(sc->mos_udev, &sc->mos_tick_task); 1045 1046 } 1047 1048 void 1049 mos_tick_task(void *xsc) 1050 { 1051 int s; 1052 struct mos_softc *sc; 1053 struct ifnet *ifp; 1054 struct mii_data *mii; 1055 1056 sc = xsc; 1057 1058 if (sc == NULL) 1059 return; 1060 1061 if (usbd_is_dying(sc->mos_udev)) 1062 return; 1063 1064 ifp = GET_IFP(sc); 1065 mii = GET_MII(sc); 1066 if (mii == NULL) 1067 return; 1068 1069 s = splnet(); 1070 1071 mii_tick(mii); 1072 if (!sc->mos_link && mii->mii_media_status & IFM_ACTIVE && 1073 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 1074 DPRINTF(("%s: %s: got link\n", 1075 sc->mos_dev.dv_xname, __func__)); 1076 sc->mos_link++; 1077 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1078 mos_start(ifp); 1079 } 1080 1081 timeout_add_sec(&sc->mos_stat_ch, 1); 1082 1083 splx(s); 1084 } 1085 1086 int 1087 mos_encap(struct mos_softc *sc, struct mbuf *m, int idx) 1088 { 1089 struct mos_chain *c; 1090 usbd_status err; 1091 int length; 1092 1093 c = &sc->mos_cdata.mos_tx_chain[idx]; 1094 1095 m_copydata(m, 0, m->m_pkthdr.len, c->mos_buf); 1096 length = m->m_pkthdr.len; 1097 1098 c->mos_mbuf = m; 1099 1100 usbd_setup_xfer(c->mos_xfer, sc->mos_ep[MOS_ENDPT_TX], 1101 c, c->mos_buf, length, USBD_FORCE_SHORT_XFER | USBD_NO_COPY, 1102 10000, mos_txeof); 1103 1104 /* Transmit */ 1105 err = usbd_transfer(c->mos_xfer); 1106 if (err != USBD_IN_PROGRESS) { 1107 mos_stop(sc); 1108 return(EIO); 1109 } 1110 1111 sc->mos_cdata.mos_tx_cnt++; 1112 1113 return(0); 1114 } 1115 1116 void 1117 mos_start(struct ifnet *ifp) 1118 { 1119 struct mos_softc *sc; 1120 struct mbuf *m_head = NULL; 1121 1122 sc = ifp->if_softc; 1123 1124 if (!sc->mos_link) 1125 return; 1126 1127 if (ifq_is_oactive(&ifp->if_snd)) 1128 return; 1129 1130 m_head = ifq_deq_begin(&ifp->if_snd); 1131 if (m_head == NULL) 1132 return; 1133 1134 if (mos_encap(sc, m_head, 0)) { 1135 ifq_deq_rollback(&ifp->if_snd, m_head); 1136 ifq_set_oactive(&ifp->if_snd); 1137 return; 1138 } 1139 ifq_deq_commit(&ifp->if_snd, m_head); 1140 1141 /* 1142 * If there's a BPF listener, bounce a copy of this frame 1143 * to him. 1144 */ 1145 #if NBPFILTER > 0 1146 if (ifp->if_bpf) 1147 bpf_mtap(ifp->if_bpf, m_head, BPF_DIRECTION_OUT); 1148 #endif 1149 1150 ifq_set_oactive(&ifp->if_snd); 1151 1152 /* 1153 * Set a timeout in case the chip goes out to lunch. 1154 */ 1155 ifp->if_timer = 5; 1156 1157 return; 1158 } 1159 1160 void 1161 mos_init(void *xsc) 1162 { 1163 struct mos_softc *sc = xsc; 1164 struct ifnet *ifp = &sc->arpcom.ac_if; 1165 struct mos_chain *c; 1166 usbd_status err; 1167 u_int8_t rxmode; 1168 int i, s; 1169 1170 s = splnet(); 1171 1172 /* 1173 * Cancel pending I/O and free all RX/TX buffers. 1174 */ 1175 mos_reset(sc); 1176 1177 /* 1178 * Write MAC address 1179 */ 1180 mos_writemac(sc, sc->arpcom.ac_enaddr); 1181 1182 /* Init RX ring. */ 1183 if (mos_rx_list_init(sc) == ENOBUFS) { 1184 printf("%s: rx list init failed\n", sc->mos_dev.dv_xname); 1185 splx(s); 1186 return; 1187 } 1188 1189 /* Init TX ring. */ 1190 if (mos_tx_list_init(sc) == ENOBUFS) { 1191 printf("%s: tx list init failed\n", sc->mos_dev.dv_xname); 1192 splx(s); 1193 return; 1194 } 1195 1196 /* Read and set transmitter IPG values */ 1197 sc->mos_ipgs[0] = mos_reg_read_1(sc, MOS_IPG0); 1198 sc->mos_ipgs[1] = mos_reg_read_1(sc, MOS_IPG1); 1199 mos_reg_write_1(sc, MOS_IPG0, sc->mos_ipgs[0]); 1200 mos_reg_write_1(sc, MOS_IPG1, sc->mos_ipgs[1]); 1201 1202 /* Program promiscuous mode and multicast filters. */ 1203 mos_iff(sc); 1204 1205 /* Enable receiver and transmitter, bridge controls speed/duplex mode */ 1206 rxmode = mos_reg_read_1(sc, MOS_CTL); 1207 rxmode |= MOS_CTL_RX_ENB | MOS_CTL_TX_ENB | MOS_CTL_BS_ENB; 1208 rxmode &= ~(MOS_CTL_SLEEP); 1209 mos_reg_write_1(sc, MOS_CTL, rxmode); 1210 1211 mii_mediachg(GET_MII(sc)); 1212 1213 /* Open RX and TX pipes. */ 1214 err = usbd_open_pipe(sc->mos_iface, sc->mos_ed[MOS_ENDPT_RX], 1215 USBD_EXCLUSIVE_USE, &sc->mos_ep[MOS_ENDPT_RX]); 1216 if (err) { 1217 printf("%s: open rx pipe failed: %s\n", 1218 sc->mos_dev.dv_xname, usbd_errstr(err)); 1219 splx(s); 1220 return; 1221 } 1222 1223 err = usbd_open_pipe(sc->mos_iface, sc->mos_ed[MOS_ENDPT_TX], 1224 USBD_EXCLUSIVE_USE, &sc->mos_ep[MOS_ENDPT_TX]); 1225 if (err) { 1226 printf("%s: open tx pipe failed: %s\n", 1227 sc->mos_dev.dv_xname, usbd_errstr(err)); 1228 splx(s); 1229 return; 1230 } 1231 1232 /* Start up the receive pipe. */ 1233 for (i = 0; i < MOS_RX_LIST_CNT; i++) { 1234 c = &sc->mos_cdata.mos_rx_chain[i]; 1235 usbd_setup_xfer(c->mos_xfer, sc->mos_ep[MOS_ENDPT_RX], 1236 c, c->mos_buf, sc->mos_bufsz, 1237 USBD_SHORT_XFER_OK | USBD_NO_COPY, 1238 USBD_NO_TIMEOUT, mos_rxeof); 1239 usbd_transfer(c->mos_xfer); 1240 } 1241 1242 ifp->if_flags |= IFF_RUNNING; 1243 ifq_clr_oactive(&ifp->if_snd); 1244 1245 splx(s); 1246 1247 timeout_add_sec(&sc->mos_stat_ch, 1); 1248 return; 1249 } 1250 1251 int 1252 mos_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1253 { 1254 struct mos_softc *sc = ifp->if_softc; 1255 struct ifreq *ifr = (struct ifreq *)data; 1256 int s, error = 0; 1257 1258 s = splnet(); 1259 1260 switch(cmd) { 1261 case SIOCSIFADDR: 1262 ifp->if_flags |= IFF_UP; 1263 if (!(ifp->if_flags & IFF_RUNNING)) 1264 mos_init(sc); 1265 break; 1266 1267 case SIOCSIFFLAGS: 1268 if (ifp->if_flags & IFF_UP) { 1269 if (ifp->if_flags & IFF_RUNNING) 1270 error = ENETRESET; 1271 else 1272 mos_init(sc); 1273 } else { 1274 if (ifp->if_flags & IFF_RUNNING) 1275 mos_stop(sc); 1276 } 1277 break; 1278 1279 case SIOCGIFMEDIA: 1280 case SIOCSIFMEDIA: 1281 error = ifmedia_ioctl(ifp, ifr, &sc->mos_mii.mii_media, cmd); 1282 break; 1283 1284 default: 1285 error = ether_ioctl(ifp, &sc->arpcom, cmd, data); 1286 } 1287 1288 if (error == ENETRESET) { 1289 if (ifp->if_flags & IFF_RUNNING) 1290 mos_iff(sc); 1291 error = 0; 1292 } 1293 1294 splx(s); 1295 return(error); 1296 } 1297 1298 void 1299 mos_watchdog(struct ifnet *ifp) 1300 { 1301 struct mos_softc *sc; 1302 struct mos_chain *c; 1303 usbd_status stat; 1304 int s; 1305 1306 sc = ifp->if_softc; 1307 1308 ifp->if_oerrors++; 1309 printf("%s: watchdog timeout\n", sc->mos_dev.dv_xname); 1310 1311 s = splusb(); 1312 c = &sc->mos_cdata.mos_tx_chain[0]; 1313 usbd_get_xfer_status(c->mos_xfer, NULL, NULL, NULL, &stat); 1314 mos_txeof(c->mos_xfer, c, stat); 1315 1316 if (!IFQ_IS_EMPTY(&ifp->if_snd)) 1317 mos_start(ifp); 1318 splx(s); 1319 } 1320 1321 1322 /* 1323 * Stop the adapter and free any mbufs allocated to the 1324 * RX and TX lists. 1325 */ 1326 void 1327 mos_stop(struct mos_softc *sc) 1328 { 1329 usbd_status err; 1330 struct ifnet *ifp; 1331 int i; 1332 1333 mos_reset(sc); 1334 1335 ifp = &sc->arpcom.ac_if; 1336 ifp->if_timer = 0; 1337 ifp->if_flags &= ~IFF_RUNNING; 1338 ifq_clr_oactive(&ifp->if_snd); 1339 1340 timeout_del(&sc->mos_stat_ch); 1341 1342 /* Stop transfers. */ 1343 if (sc->mos_ep[MOS_ENDPT_RX] != NULL) { 1344 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_RX]); 1345 err = usbd_close_pipe(sc->mos_ep[MOS_ENDPT_RX]); 1346 if (err) { 1347 printf("%s: close rx pipe failed: %s\n", 1348 sc->mos_dev.dv_xname, usbd_errstr(err)); 1349 } 1350 sc->mos_ep[MOS_ENDPT_RX] = NULL; 1351 } 1352 1353 if (sc->mos_ep[MOS_ENDPT_TX] != NULL) { 1354 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_TX]); 1355 err = usbd_close_pipe(sc->mos_ep[MOS_ENDPT_TX]); 1356 if (err) { 1357 printf("%s: close tx pipe failed: %s\n", 1358 sc->mos_dev.dv_xname, usbd_errstr(err)); 1359 } 1360 sc->mos_ep[MOS_ENDPT_TX] = NULL; 1361 } 1362 1363 if (sc->mos_ep[MOS_ENDPT_INTR] != NULL) { 1364 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_INTR]); 1365 err = usbd_close_pipe(sc->mos_ep[MOS_ENDPT_INTR]); 1366 if (err) { 1367 printf("%s: close intr pipe failed: %s\n", 1368 sc->mos_dev.dv_xname, usbd_errstr(err)); 1369 } 1370 sc->mos_ep[MOS_ENDPT_INTR] = NULL; 1371 } 1372 1373 /* Free RX resources. */ 1374 for (i = 0; i < MOS_RX_LIST_CNT; i++) { 1375 if (sc->mos_cdata.mos_rx_chain[i].mos_mbuf != NULL) { 1376 m_freem(sc->mos_cdata.mos_rx_chain[i].mos_mbuf); 1377 sc->mos_cdata.mos_rx_chain[i].mos_mbuf = NULL; 1378 } 1379 if (sc->mos_cdata.mos_rx_chain[i].mos_xfer != NULL) { 1380 usbd_free_xfer(sc->mos_cdata.mos_rx_chain[i].mos_xfer); 1381 sc->mos_cdata.mos_rx_chain[i].mos_xfer = NULL; 1382 } 1383 } 1384 1385 /* Free TX resources. */ 1386 for (i = 0; i < MOS_TX_LIST_CNT; i++) { 1387 if (sc->mos_cdata.mos_tx_chain[i].mos_mbuf != NULL) { 1388 m_freem(sc->mos_cdata.mos_tx_chain[i].mos_mbuf); 1389 sc->mos_cdata.mos_tx_chain[i].mos_mbuf = NULL; 1390 } 1391 if (sc->mos_cdata.mos_tx_chain[i].mos_xfer != NULL) { 1392 usbd_free_xfer(sc->mos_cdata.mos_tx_chain[i].mos_xfer); 1393 sc->mos_cdata.mos_tx_chain[i].mos_xfer = NULL; 1394 } 1395 } 1396 1397 sc->mos_link = 0; 1398 } 1399 1400