1 /* $OpenBSD: if_mos.c,v 1.29 2015/04/10 08:41:43 mpi 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/miivar.h> 99 100 #include <dev/usb/usb.h> 101 #include <dev/usb/usbdi.h> 102 #include <dev/usb/usbdi_util.h> 103 #include <dev/usb/usbdivar.h> 104 #include <dev/usb/usbdevs.h> 105 106 #include <dev/usb/if_mosreg.h> 107 108 #ifdef MOS_DEBUG 109 #define DPRINTF(x) do { if (mosdebug) printf x; } while (0) 110 #define DPRINTFN(n,x) do { if (mosdebug >= (n)) printf x; } while (0) 111 int mosdebug = 0; 112 #else 113 #define DPRINTF(x) 114 #define DPRINTFN(n,x) 115 #endif 116 117 /* 118 * Various supported device vendors/products. 119 */ 120 const struct mos_type mos_devs[] = { 121 { { USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7730 }, MCS7730 }, 122 { { USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7830 }, MCS7830 }, 123 { { USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7832 }, MCS7832 }, 124 { { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_LN030 }, MCS7830 }, 125 }; 126 #define mos_lookup(v, p) ((struct mos_type *)usb_lookup(mos_devs, v, p)) 127 128 int mos_match(struct device *, void *, void *); 129 void mos_attach(struct device *, struct device *, void *); 130 int mos_detach(struct device *, int); 131 132 struct cfdriver mos_cd = { 133 NULL, "mos", DV_IFNET 134 }; 135 136 const struct cfattach mos_ca = { 137 sizeof(struct mos_softc), mos_match, mos_attach, mos_detach 138 }; 139 140 int mos_tx_list_init(struct mos_softc *); 141 int mos_rx_list_init(struct mos_softc *); 142 struct mbuf *mos_newbuf(void); 143 int mos_encap(struct mos_softc *, struct mbuf *, int); 144 void mos_rxeof(struct usbd_xfer *, void *, usbd_status); 145 void mos_txeof(struct usbd_xfer *, void *, usbd_status); 146 void mos_tick(void *); 147 void mos_tick_task(void *); 148 void mos_start(struct ifnet *); 149 int mos_ioctl(struct ifnet *, u_long, caddr_t); 150 void mos_init(void *); 151 void mos_chip_init(struct mos_softc *); 152 void mos_stop(struct mos_softc *); 153 void mos_watchdog(struct ifnet *); 154 int mos_miibus_readreg(struct device *, int, int); 155 void mos_miibus_writereg(struct device *, int, int, int); 156 void mos_miibus_statchg(struct device *); 157 int mos_ifmedia_upd(struct ifnet *); 158 void mos_ifmedia_sts(struct ifnet *, struct ifmediareq *); 159 void mos_reset(struct mos_softc *sc); 160 161 int mos_reg_read_1(struct mos_softc *, int); 162 int mos_reg_read_2(struct mos_softc *, int); 163 int mos_reg_write_1(struct mos_softc *, int, int); 164 int mos_reg_write_2(struct mos_softc *, int, int); 165 int mos_readmac(struct mos_softc *, u_char *); 166 int mos_writemac(struct mos_softc *, u_char *); 167 int mos_write_mcast(struct mos_softc *, u_char *); 168 169 void mos_iff(struct mos_softc *); 170 void mos_lock_mii(struct mos_softc *); 171 void mos_unlock_mii(struct mos_softc *); 172 173 /* 174 * Get exclusive access to the MII registers 175 */ 176 void 177 mos_lock_mii(struct mos_softc *sc) 178 { 179 sc->mos_refcnt++; 180 rw_enter_write(&sc->mos_mii_lock); 181 } 182 183 void 184 mos_unlock_mii(struct mos_softc *sc) 185 { 186 rw_exit_write(&sc->mos_mii_lock); 187 if (--sc->mos_refcnt < 0) 188 usb_detach_wakeup(&sc->mos_dev); 189 } 190 191 int 192 mos_reg_read_1(struct mos_softc *sc, int reg) 193 { 194 usb_device_request_t req; 195 usbd_status err; 196 uByte val = 0; 197 198 if (usbd_is_dying(sc->mos_udev)) 199 return(0); 200 201 req.bmRequestType = UT_READ_VENDOR_DEVICE; 202 req.bRequest = MOS_UR_READREG; 203 USETW(req.wValue, 0); 204 USETW(req.wIndex, reg); 205 USETW(req.wLength, 1); 206 207 err = usbd_do_request(sc->mos_udev, &req, &val); 208 209 if (err) { 210 DPRINTF(("mos_reg_read_1 error, reg: %d\n", reg)); 211 return (-1); 212 } 213 214 return (val); 215 } 216 217 int 218 mos_reg_read_2(struct mos_softc *sc, int reg) 219 { 220 usb_device_request_t req; 221 usbd_status err; 222 uWord val; 223 224 USETW(val,0); 225 226 if (usbd_is_dying(sc->mos_udev)) 227 return(0); 228 229 req.bmRequestType = UT_READ_VENDOR_DEVICE; 230 req.bRequest = MOS_UR_READREG; 231 USETW(req.wValue, 0); 232 USETW(req.wIndex, reg); 233 USETW(req.wLength, 2); 234 235 err = usbd_do_request(sc->mos_udev, &req, &val); 236 237 if (err) { 238 DPRINTF(("mos_reg_read_2 error, reg: %d\n", reg)); 239 return (-1); 240 } 241 242 return(UGETW(val)); 243 } 244 245 int 246 mos_reg_write_1(struct mos_softc *sc, int reg, int aval) 247 { 248 usb_device_request_t req; 249 usbd_status err; 250 uByte val; 251 252 val = aval; 253 254 if (usbd_is_dying(sc->mos_udev)) 255 return(0); 256 257 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 258 req.bRequest = MOS_UR_WRITEREG; 259 USETW(req.wValue, 0); 260 USETW(req.wIndex, reg); 261 USETW(req.wLength, 1); 262 263 err = usbd_do_request(sc->mos_udev, &req, &val); 264 265 if (err) { 266 DPRINTF(("mos_reg_write_1 error, reg: %d\n", reg)); 267 return (-1); 268 } 269 270 return(0); 271 } 272 273 int 274 mos_reg_write_2(struct mos_softc *sc, int reg, int aval) 275 { 276 usb_device_request_t req; 277 usbd_status err; 278 uWord val; 279 280 USETW(val, aval); 281 282 if (usbd_is_dying(sc->mos_udev)) 283 return (0); 284 285 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 286 req.bRequest = MOS_UR_WRITEREG; 287 USETW(req.wValue, 0); 288 USETW(req.wIndex, reg); 289 USETW(req.wLength, 2); 290 291 err = usbd_do_request(sc->mos_udev, &req, &val); 292 293 if (err) { 294 DPRINTF(("mos_reg_write_2 error, reg: %d\n", reg)); 295 return (-1); 296 } 297 298 return (0); 299 } 300 301 int 302 mos_readmac(struct mos_softc *sc, u_char *mac) 303 { 304 usb_device_request_t req; 305 usbd_status err; 306 307 if (usbd_is_dying(sc->mos_udev)) 308 return(0); 309 310 req.bmRequestType = UT_READ_VENDOR_DEVICE; 311 req.bRequest = MOS_UR_READREG; 312 USETW(req.wValue, 0); 313 USETW(req.wIndex, MOS_MAC); 314 USETW(req.wLength, ETHER_ADDR_LEN); 315 316 err = usbd_do_request(sc->mos_udev, &req, mac); 317 318 if (err) { 319 DPRINTF(("mos_readmac error")); 320 return (-1); 321 } 322 323 return (0); 324 } 325 326 int 327 mos_writemac(struct mos_softc *sc, u_char *mac) 328 { 329 usb_device_request_t req; 330 usbd_status err; 331 332 if (usbd_is_dying(sc->mos_udev)) 333 return(0); 334 335 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 336 req.bRequest = MOS_UR_WRITEREG; 337 USETW(req.wValue, 0); 338 USETW(req.wIndex, MOS_MAC); 339 USETW(req.wLength, ETHER_ADDR_LEN); 340 341 err = usbd_do_request(sc->mos_udev, &req, mac); 342 343 if (err) { 344 DPRINTF(("mos_writemac error")); 345 return (-1); 346 } 347 348 return (0); 349 } 350 351 int 352 mos_write_mcast(struct mos_softc *sc, u_char *hashtbl) 353 { 354 usb_device_request_t req; 355 usbd_status err; 356 357 if (usbd_is_dying(sc->mos_udev)) 358 return(0); 359 360 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 361 req.bRequest = MOS_UR_WRITEREG; 362 USETW(req.wValue, 0); 363 USETW(req.wIndex, MOS_MCAST_TABLE); 364 USETW(req.wLength, 8); 365 366 err = usbd_do_request(sc->mos_udev, &req, hashtbl); 367 368 if (err) { 369 DPRINTF(("mos_reg_mcast error\n")); 370 return(-1); 371 } 372 373 return(0); 374 } 375 376 int 377 mos_miibus_readreg(struct device *dev, int phy, int reg) 378 { 379 struct mos_softc *sc = (void *)dev; 380 uWord val; 381 int i,res; 382 383 if (usbd_is_dying(sc->mos_udev)) { 384 DPRINTF(("mos: dying\n")); 385 return (0); 386 } 387 388 USETW(val, 0); 389 390 mos_lock_mii(sc); 391 392 mos_reg_write_2(sc, MOS_PHY_DATA, 0); 393 mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) | 394 MOS_PHYCTL_READ); 395 mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) | 396 MOS_PHYSTS_PENDING); 397 398 for (i = 0; i < MOS_TIMEOUT; i++) { 399 if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY) 400 break; 401 } 402 if (i == MOS_TIMEOUT) { 403 printf("%s: MII read timeout\n", sc->mos_dev.dv_xname); 404 } 405 406 res = mos_reg_read_2(sc, MOS_PHY_DATA); 407 408 mos_unlock_mii(sc); 409 410 return (res); 411 } 412 413 void 414 mos_miibus_writereg(struct device *dev, int phy, int reg, int val) 415 { 416 struct mos_softc *sc = (void *)dev; 417 int i; 418 419 if (usbd_is_dying(sc->mos_udev)) 420 return; 421 422 mos_lock_mii(sc); 423 424 mos_reg_write_2(sc, MOS_PHY_DATA, val); 425 mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) | 426 MOS_PHYCTL_WRITE); 427 mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) | 428 MOS_PHYSTS_PENDING); 429 430 for (i = 0; i < MOS_TIMEOUT; i++) { 431 if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY) 432 break; 433 } 434 if (i == MOS_TIMEOUT) { 435 printf("%s: MII write timeout\n", sc->mos_dev.dv_xname); 436 } 437 438 mos_unlock_mii(sc); 439 440 return; 441 } 442 443 void 444 mos_miibus_statchg(struct device *dev) 445 { 446 struct mos_softc *sc = (void *)dev; 447 struct mii_data *mii = GET_MII(sc); 448 int val, err; 449 450 mos_lock_mii(sc); 451 452 /* disable RX, TX prior to changing FDX, SPEEDSEL */ 453 val = mos_reg_read_1(sc, MOS_CTL); 454 val &= ~(MOS_CTL_TX_ENB | MOS_CTL_RX_ENB); 455 mos_reg_write_1(sc, MOS_CTL, val); 456 457 /* reset register which counts dropped frames */ 458 mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0); 459 460 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 461 val |= MOS_CTL_FDX_ENB; 462 else 463 val &= ~(MOS_CTL_FDX_ENB); 464 465 switch (IFM_SUBTYPE(mii->mii_media_active)) { 466 case IFM_100_TX: 467 val |= MOS_CTL_SPEEDSEL; 468 break; 469 case IFM_10_T: 470 val &= ~(MOS_CTL_SPEEDSEL); 471 break; 472 } 473 474 /* re-enable TX, RX */ 475 val |= (MOS_CTL_TX_ENB | MOS_CTL_RX_ENB); 476 err = mos_reg_write_1(sc, MOS_CTL, val); 477 mos_unlock_mii(sc); 478 479 if (err) { 480 printf("%s: media change failed\n", sc->mos_dev.dv_xname); 481 return; 482 } 483 } 484 485 /* 486 * Set media options. 487 */ 488 int 489 mos_ifmedia_upd(struct ifnet *ifp) 490 { 491 struct mos_softc *sc = ifp->if_softc; 492 struct mii_data *mii = GET_MII(sc); 493 494 sc->mos_link = 0; 495 if (mii->mii_instance) { 496 struct mii_softc *miisc; 497 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 498 mii_phy_reset(miisc); 499 } 500 mii_mediachg(mii); 501 502 return (0); 503 } 504 505 /* 506 * Report current media status. 507 */ 508 void 509 mos_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 510 { 511 struct mos_softc *sc = ifp->if_softc; 512 struct mii_data *mii = GET_MII(sc); 513 514 mii_pollstat(mii); 515 ifmr->ifm_active = mii->mii_media_active; 516 ifmr->ifm_status = mii->mii_media_status; 517 } 518 519 void 520 mos_iff(struct mos_softc *sc) 521 { 522 struct ifnet *ifp = GET_IFP(sc); 523 struct arpcom *ac = &sc->arpcom; 524 struct ether_multi *enm; 525 struct ether_multistep step; 526 u_int32_t h = 0; 527 u_int8_t rxmode, hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 528 529 if (usbd_is_dying(sc->mos_udev)) 530 return; 531 532 rxmode = mos_reg_read_1(sc, MOS_CTL); 533 rxmode &= ~(MOS_CTL_ALLMULTI | MOS_CTL_RX_PROMISC); 534 ifp->if_flags &= ~IFF_ALLMULTI; 535 536 if (ifp->if_flags & IFF_PROMISC || ac->ac_multirangecnt > 0) { 537 ifp->if_flags |= IFF_ALLMULTI; 538 rxmode |= MOS_CTL_ALLMULTI; 539 if (ifp->if_flags & IFF_PROMISC) 540 rxmode |= MOS_CTL_RX_PROMISC; 541 } else { 542 /* now program new ones */ 543 ETHER_FIRST_MULTI(step, ac, enm); 544 while (enm != NULL) { 545 h = ether_crc32_be(enm->enm_addrlo, ETHER_ADDR_LEN) >> 26; 546 547 hashtbl[h / 8] |= 1 << (h % 8); 548 549 ETHER_NEXT_MULTI(step, enm); 550 } 551 } 552 553 /* 554 * The datasheet claims broadcast frames were always accepted 555 * regardless of filter settings. But the hardware seems to 556 * filter broadcast frames, so pass them explicitly. 557 */ 558 h = ether_crc32_be(etherbroadcastaddr, ETHER_ADDR_LEN) >> 26; 559 hashtbl[h / 8] |= 1 << (h % 8); 560 561 mos_write_mcast(sc, (void *)&hashtbl); 562 mos_reg_write_1(sc, MOS_CTL, rxmode); 563 } 564 565 void 566 mos_reset(struct mos_softc *sc) 567 { 568 u_int8_t ctl; 569 if (usbd_is_dying(sc->mos_udev)) 570 return; 571 572 ctl = mos_reg_read_1(sc, MOS_CTL); 573 ctl &= ~(MOS_CTL_RX_PROMISC | MOS_CTL_ALLMULTI | MOS_CTL_TX_ENB | 574 MOS_CTL_RX_ENB); 575 /* Disable RX, TX, promiscuous and allmulticast mode */ 576 mos_reg_write_1(sc, MOS_CTL, ctl); 577 578 /* Reset frame drop counter register to zero */ 579 mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0); 580 581 /* Wait a little while for the chip to get its brains in order. */ 582 DELAY(1000); 583 return; 584 } 585 586 void 587 mos_chip_init(struct mos_softc *sc) 588 { 589 int i; 590 591 /* 592 * Rev.C devices have a pause threshold register which needs to be set 593 * at startup. 594 */ 595 if (mos_reg_read_1(sc, MOS_PAUSE_TRHD) != -1) { 596 for (i=0;i<MOS_PAUSE_REWRITES;i++) 597 mos_reg_write_1(sc, MOS_PAUSE_TRHD, 0); 598 } 599 600 sc->mos_phyaddrs[0] = 1; sc->mos_phyaddrs[1] = 0xFF; 601 } 602 603 /* 604 * Probe for a MCS7x30 chip. 605 */ 606 int 607 mos_match(struct device *parent, void *match, void *aux) 608 { 609 struct usb_attach_arg *uaa = aux; 610 611 if (!uaa->iface) 612 return(UMATCH_NONE); 613 614 return (mos_lookup(uaa->vendor, uaa->product) != NULL ? 615 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 616 } 617 618 /* 619 * Attach the interface. Allocate softc structures, do ifmedia 620 * setup and ethernet/BPF attach. 621 */ 622 void 623 mos_attach(struct device *parent, struct device *self, void *aux) 624 { 625 struct mos_softc *sc = (struct mos_softc *)self; 626 struct usb_attach_arg *uaa = aux; 627 struct ifnet *ifp; 628 struct usbd_device *dev = uaa->device; 629 usbd_status err; 630 usb_interface_descriptor_t *id; 631 usb_endpoint_descriptor_t *ed; 632 struct mii_data *mii; 633 u_char eaddr[ETHER_ADDR_LEN]; 634 int i,s; 635 636 sc->mos_udev = dev; 637 sc->mos_unit = self->dv_unit; 638 639 err = usbd_set_config_no(dev, MOS_CONFIG_NO, 1); 640 if (err) { 641 printf("%s: getting interface handle failed\n", 642 sc->mos_dev.dv_xname); 643 return; 644 } 645 646 usb_init_task(&sc->mos_tick_task, mos_tick_task, sc, 647 USB_TASK_TYPE_GENERIC); 648 rw_init(&sc->mos_mii_lock, "mosmii"); 649 usb_init_task(&sc->mos_stop_task, (void (*)(void *))mos_stop, sc, 650 USB_TASK_TYPE_GENERIC); 651 652 err = usbd_device2interface_handle(dev, MOS_IFACE_IDX, &sc->mos_iface); 653 if (err) { 654 printf("%s: getting interface handle failed\n", 655 sc->mos_dev.dv_xname); 656 return; 657 } 658 659 sc->mos_flags = mos_lookup(uaa->vendor, uaa->product)->mos_flags; 660 661 id = usbd_get_interface_descriptor(sc->mos_iface); 662 663 sc->mos_bufsz = MOS_BUFSZ; 664 665 /* Find endpoints. */ 666 for (i = 0; i < id->bNumEndpoints; i++) { 667 ed = usbd_interface2endpoint_descriptor(sc->mos_iface, i); 668 if (!ed) { 669 printf("%s: couldn't get ep %d\n", 670 sc->mos_dev.dv_xname, i); 671 return; 672 } 673 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 674 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 675 sc->mos_ed[MOS_ENDPT_RX] = ed->bEndpointAddress; 676 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 677 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 678 sc->mos_ed[MOS_ENDPT_TX] = ed->bEndpointAddress; 679 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 680 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 681 sc->mos_ed[MOS_ENDPT_INTR] = ed->bEndpointAddress; 682 } 683 } 684 685 s = splnet(); 686 687 printf("%s:", sc->mos_dev.dv_xname); 688 689 if (sc->mos_flags & MCS7730) 690 printf(" MCS7730"); 691 else if (sc->mos_flags & MCS7830) 692 printf(" MCS7830"); 693 else if (sc->mos_flags & MCS7832) 694 printf(" MCS7832"); 695 696 mos_chip_init(sc); 697 698 /* 699 * Read MAC address, inform the world. 700 */ 701 err = mos_readmac(sc, (void*)&eaddr); 702 if (err) { 703 printf("%s: couldn't get MAC address\n", 704 sc->mos_dev.dv_xname); 705 return; 706 } 707 bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN); 708 printf(", address %s\n", ether_sprintf(eaddr)); 709 710 /* Initialize interface info.*/ 711 ifp = GET_IFP(sc); 712 ifp->if_softc = sc; 713 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 714 ifp->if_ioctl = mos_ioctl; 715 ifp->if_start = mos_start; 716 ifp->if_watchdog = mos_watchdog; 717 strlcpy(ifp->if_xname, sc->mos_dev.dv_xname, IFNAMSIZ); 718 719 IFQ_SET_READY(&ifp->if_snd); 720 721 ifp->if_capabilities = IFCAP_VLAN_MTU; 722 723 /* Initialize MII/media info. */ 724 mii = GET_MII(sc); 725 mii->mii_ifp = ifp; 726 mii->mii_readreg = mos_miibus_readreg; 727 mii->mii_writereg = mos_miibus_writereg; 728 mii->mii_statchg = mos_miibus_statchg; 729 mii->mii_flags = MIIF_AUTOTSLEEP; 730 731 ifmedia_init(&mii->mii_media, 0, mos_ifmedia_upd, mos_ifmedia_sts); 732 mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0); 733 734 if (LIST_FIRST(&mii->mii_phys) == NULL) { 735 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL); 736 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE); 737 } else 738 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO); 739 740 /* Attach the interface. */ 741 if_attach(ifp); 742 ether_ifattach(ifp); 743 744 timeout_set(&sc->mos_stat_ch, mos_tick, sc); 745 746 splx(s); 747 } 748 749 int 750 mos_detach(struct device *self, int flags) 751 { 752 struct mos_softc *sc = (struct mos_softc *)self; 753 struct ifnet *ifp = GET_IFP(sc); 754 int s; 755 756 DPRINTFN(2,("%s: %s: enter\n", sc->mos_dev.dv_xname, __func__)); 757 758 if (timeout_initialized(&sc->mos_stat_ch)) 759 timeout_del(&sc->mos_stat_ch); 760 761 if (sc->mos_ep[MOS_ENDPT_TX] != NULL) 762 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_TX]); 763 if (sc->mos_ep[MOS_ENDPT_RX] != NULL) 764 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_RX]); 765 if (sc->mos_ep[MOS_ENDPT_INTR] != NULL) 766 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_INTR]); 767 768 /* 769 * Remove any pending tasks. They cannot be executing because they run 770 * in the same thread as detach. 771 */ 772 usb_rem_task(sc->mos_udev, &sc->mos_tick_task); 773 usb_rem_task(sc->mos_udev, &sc->mos_stop_task); 774 s = splusb(); 775 776 if (--sc->mos_refcnt >= 0) { 777 /* Wait for processes to go away */ 778 usb_detach_wait(&sc->mos_dev); 779 } 780 781 if (ifp->if_flags & IFF_RUNNING) 782 mos_stop(sc); 783 784 mii_detach(&sc->mos_mii, MII_PHY_ANY, MII_OFFSET_ANY); 785 ifmedia_delete_instance(&sc->mos_mii.mii_media, IFM_INST_ANY); 786 if (ifp->if_softc != NULL) { 787 ether_ifdetach(ifp); 788 if_detach(ifp); 789 } 790 791 #ifdef DIAGNOSTIC 792 if (sc->mos_ep[MOS_ENDPT_TX] != NULL || 793 sc->mos_ep[MOS_ENDPT_RX] != NULL || 794 sc->mos_ep[MOS_ENDPT_INTR] != NULL) 795 printf("%s: detach has active endpoints\n", 796 sc->mos_dev.dv_xname); 797 #endif 798 799 if (--sc->mos_refcnt >= 0) { 800 /* Wait for processes to go away. */ 801 usb_detach_wait(&sc->mos_dev); 802 } 803 splx(s); 804 805 return (0); 806 } 807 808 struct mbuf * 809 mos_newbuf(void) 810 { 811 struct mbuf *m; 812 813 MGETHDR(m, M_DONTWAIT, MT_DATA); 814 if (m == NULL) 815 return (NULL); 816 817 MCLGET(m, M_DONTWAIT); 818 if (!(m->m_flags & M_EXT)) { 819 m_freem(m); 820 return (NULL); 821 } 822 823 m->m_len = m->m_pkthdr.len = MCLBYTES; 824 m_adj(m, ETHER_ALIGN); 825 826 return (m); 827 } 828 829 int 830 mos_rx_list_init(struct mos_softc *sc) 831 { 832 struct mos_cdata *cd; 833 struct mos_chain *c; 834 int i; 835 836 DPRINTF(("%s: %s: enter\n", sc->mos_dev.dv_xname, __func__)); 837 838 cd = &sc->mos_cdata; 839 for (i = 0; i < MOS_RX_LIST_CNT; i++) { 840 c = &cd->mos_rx_chain[i]; 841 c->mos_sc = sc; 842 c->mos_idx = i; 843 c->mos_mbuf = NULL; 844 if (c->mos_xfer == NULL) { 845 c->mos_xfer = usbd_alloc_xfer(sc->mos_udev); 846 if (c->mos_xfer == NULL) 847 return (ENOBUFS); 848 c->mos_buf = usbd_alloc_buffer(c->mos_xfer, 849 sc->mos_bufsz); 850 if (c->mos_buf == NULL) { 851 usbd_free_xfer(c->mos_xfer); 852 return (ENOBUFS); 853 } 854 } 855 } 856 857 return (0); 858 } 859 860 int 861 mos_tx_list_init(struct mos_softc *sc) 862 { 863 struct mos_cdata *cd; 864 struct mos_chain *c; 865 int i; 866 867 DPRINTF(("%s: %s: enter\n", sc->mos_dev.dv_xname, __func__)); 868 869 cd = &sc->mos_cdata; 870 for (i = 0; i < MOS_TX_LIST_CNT; i++) { 871 c = &cd->mos_tx_chain[i]; 872 c->mos_sc = sc; 873 c->mos_idx = i; 874 c->mos_mbuf = NULL; 875 if (c->mos_xfer == NULL) { 876 c->mos_xfer = usbd_alloc_xfer(sc->mos_udev); 877 if (c->mos_xfer == NULL) 878 return (ENOBUFS); 879 c->mos_buf = usbd_alloc_buffer(c->mos_xfer, 880 sc->mos_bufsz); 881 if (c->mos_buf == NULL) { 882 usbd_free_xfer(c->mos_xfer); 883 return (ENOBUFS); 884 } 885 } 886 } 887 888 return (0); 889 } 890 891 /* 892 * A frame has been uploaded: pass the resulting mbuf chain up to 893 * the higher level protocols. 894 */ 895 void 896 mos_rxeof(struct usbd_xfer *xfer, void *priv, usbd_status status) 897 { 898 struct mos_chain *c = (struct mos_chain *)priv; 899 struct mos_softc *sc = c->mos_sc; 900 struct ifnet *ifp = GET_IFP(sc); 901 u_char *buf = c->mos_buf; 902 u_int8_t rxstat; 903 u_int32_t total_len; 904 u_int16_t pktlen = 0; 905 struct mbuf_list ml = MBUF_LIST_INITIALIZER(); 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.len = m->m_len = pktlen; 966 967 memcpy(mtod(m, char *), buf, pktlen); 968 969 ml_enqueue(&ml, m); 970 971 s = splnet(); 972 if_input(ifp, &ml); 973 splx(s); 974 975 done: 976 memset(c->mos_buf, 0, sc->mos_bufsz); 977 978 /* Setup new transfer. */ 979 usbd_setup_xfer(xfer, sc->mos_ep[MOS_ENDPT_RX], 980 c, c->mos_buf, sc->mos_bufsz, 981 USBD_SHORT_XFER_OK | USBD_NO_COPY, 982 USBD_NO_TIMEOUT, mos_rxeof); 983 usbd_transfer(xfer); 984 985 DPRINTFN(10,("%s: %s: start rx\n", sc->mos_dev.dv_xname, __func__)); 986 987 return; 988 } 989 990 /* 991 * A frame was downloaded to the chip. It's safe for us to clean up 992 * the list buffers. 993 */ 994 995 void 996 mos_txeof(struct usbd_xfer *xfer, void *priv, usbd_status status) 997 { 998 struct mos_softc *sc; 999 struct mos_chain *c; 1000 struct ifnet *ifp; 1001 int s; 1002 1003 c = priv; 1004 sc = c->mos_sc; 1005 ifp = &sc->arpcom.ac_if; 1006 1007 if (usbd_is_dying(sc->mos_udev)) 1008 return; 1009 1010 s = splnet(); 1011 1012 if (status != USBD_NORMAL_COMPLETION) { 1013 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 1014 splx(s); 1015 return; 1016 } 1017 ifp->if_oerrors++; 1018 printf("%s: usb error on tx: %s\n", sc->mos_dev.dv_xname, 1019 usbd_errstr(status)); 1020 if (status == USBD_STALLED) 1021 usbd_clear_endpoint_stall_async(sc->mos_ep[MOS_ENDPT_TX]); 1022 splx(s); 1023 return; 1024 } 1025 1026 ifp->if_timer = 0; 1027 ifp->if_flags &= ~IFF_OACTIVE; 1028 1029 m_freem(c->mos_mbuf); 1030 c->mos_mbuf = NULL; 1031 1032 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1033 mos_start(ifp); 1034 1035 ifp->if_opackets++; 1036 splx(s); 1037 return; 1038 } 1039 1040 void 1041 mos_tick(void *xsc) 1042 { 1043 struct mos_softc *sc = xsc; 1044 1045 if (sc == NULL) 1046 return; 1047 1048 DPRINTFN(0xff, ("%s: %s: enter\n", sc->mos_dev.dv_xname, 1049 __func__)); 1050 1051 if (usbd_is_dying(sc->mos_udev)) 1052 return; 1053 1054 /* Perform periodic stuff in process context */ 1055 usb_add_task(sc->mos_udev, &sc->mos_tick_task); 1056 1057 } 1058 1059 void 1060 mos_tick_task(void *xsc) 1061 { 1062 int s; 1063 struct mos_softc *sc; 1064 struct ifnet *ifp; 1065 struct mii_data *mii; 1066 1067 sc = xsc; 1068 1069 if (sc == NULL) 1070 return; 1071 1072 if (usbd_is_dying(sc->mos_udev)) 1073 return; 1074 1075 ifp = GET_IFP(sc); 1076 mii = GET_MII(sc); 1077 if (mii == NULL) 1078 return; 1079 1080 s = splnet(); 1081 1082 mii_tick(mii); 1083 if (!sc->mos_link && mii->mii_media_status & IFM_ACTIVE && 1084 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 1085 DPRINTF(("%s: %s: got link\n", 1086 sc->mos_dev.dv_xname, __func__)); 1087 sc->mos_link++; 1088 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1089 mos_start(ifp); 1090 } 1091 1092 timeout_add_sec(&sc->mos_stat_ch, 1); 1093 1094 splx(s); 1095 } 1096 1097 int 1098 mos_encap(struct mos_softc *sc, struct mbuf *m, int idx) 1099 { 1100 struct mos_chain *c; 1101 usbd_status err; 1102 int length; 1103 1104 c = &sc->mos_cdata.mos_tx_chain[idx]; 1105 1106 m_copydata(m, 0, m->m_pkthdr.len, c->mos_buf); 1107 length = m->m_pkthdr.len; 1108 1109 c->mos_mbuf = m; 1110 1111 usbd_setup_xfer(c->mos_xfer, sc->mos_ep[MOS_ENDPT_TX], 1112 c, c->mos_buf, length, USBD_FORCE_SHORT_XFER | USBD_NO_COPY, 1113 10000, mos_txeof); 1114 1115 /* Transmit */ 1116 err = usbd_transfer(c->mos_xfer); 1117 if (err != USBD_IN_PROGRESS) { 1118 mos_stop(sc); 1119 return(EIO); 1120 } 1121 1122 sc->mos_cdata.mos_tx_cnt++; 1123 1124 return(0); 1125 } 1126 1127 void 1128 mos_start(struct ifnet *ifp) 1129 { 1130 struct mos_softc *sc; 1131 struct mbuf *m_head = NULL; 1132 1133 sc = ifp->if_softc; 1134 1135 if (!sc->mos_link) 1136 return; 1137 1138 if (ifp->if_flags & IFF_OACTIVE) 1139 return; 1140 1141 IFQ_POLL(&ifp->if_snd, m_head); 1142 if (m_head == NULL) 1143 return; 1144 1145 if (mos_encap(sc, m_head, 0)) { 1146 ifp->if_flags |= IFF_OACTIVE; 1147 return; 1148 } 1149 IFQ_DEQUEUE(&ifp->if_snd, m_head); 1150 1151 /* 1152 * If there's a BPF listener, bounce a copy of this frame 1153 * to him. 1154 */ 1155 #if NBPFILTER > 0 1156 if (ifp->if_bpf) 1157 bpf_mtap(ifp->if_bpf, m_head, BPF_DIRECTION_OUT); 1158 #endif 1159 1160 ifp->if_flags |= IFF_OACTIVE; 1161 1162 /* 1163 * Set a timeout in case the chip goes out to lunch. 1164 */ 1165 ifp->if_timer = 5; 1166 1167 return; 1168 } 1169 1170 void 1171 mos_init(void *xsc) 1172 { 1173 struct mos_softc *sc = xsc; 1174 struct ifnet *ifp = &sc->arpcom.ac_if; 1175 struct mos_chain *c; 1176 usbd_status err; 1177 u_int8_t rxmode; 1178 int i, s; 1179 1180 s = splnet(); 1181 1182 /* 1183 * Cancel pending I/O and free all RX/TX buffers. 1184 */ 1185 mos_reset(sc); 1186 1187 /* 1188 * Write MAC address 1189 */ 1190 mos_writemac(sc, sc->arpcom.ac_enaddr); 1191 1192 /* Init RX ring. */ 1193 if (mos_rx_list_init(sc) == ENOBUFS) { 1194 printf("%s: rx list init failed\n", sc->mos_dev.dv_xname); 1195 splx(s); 1196 return; 1197 } 1198 1199 /* Init TX ring. */ 1200 if (mos_tx_list_init(sc) == ENOBUFS) { 1201 printf("%s: tx list init failed\n", sc->mos_dev.dv_xname); 1202 splx(s); 1203 return; 1204 } 1205 1206 /* Read and set transmitter IPG values */ 1207 sc->mos_ipgs[0] = mos_reg_read_1(sc, MOS_IPG0); 1208 sc->mos_ipgs[1] = mos_reg_read_1(sc, MOS_IPG1); 1209 mos_reg_write_1(sc, MOS_IPG0, sc->mos_ipgs[0]); 1210 mos_reg_write_1(sc, MOS_IPG1, sc->mos_ipgs[1]); 1211 1212 /* Program promiscuous mode and multicast filters. */ 1213 mos_iff(sc); 1214 1215 /* Enable receiver and transmitter, bridge controls speed/duplex mode */ 1216 rxmode = mos_reg_read_1(sc, MOS_CTL); 1217 rxmode |= MOS_CTL_RX_ENB | MOS_CTL_TX_ENB | MOS_CTL_BS_ENB; 1218 rxmode &= ~(MOS_CTL_SLEEP); 1219 mos_reg_write_1(sc, MOS_CTL, rxmode); 1220 1221 mii_mediachg(GET_MII(sc)); 1222 1223 /* Open RX and TX pipes. */ 1224 err = usbd_open_pipe(sc->mos_iface, sc->mos_ed[MOS_ENDPT_RX], 1225 USBD_EXCLUSIVE_USE, &sc->mos_ep[MOS_ENDPT_RX]); 1226 if (err) { 1227 printf("%s: open rx pipe failed: %s\n", 1228 sc->mos_dev.dv_xname, usbd_errstr(err)); 1229 splx(s); 1230 return; 1231 } 1232 1233 err = usbd_open_pipe(sc->mos_iface, sc->mos_ed[MOS_ENDPT_TX], 1234 USBD_EXCLUSIVE_USE, &sc->mos_ep[MOS_ENDPT_TX]); 1235 if (err) { 1236 printf("%s: open tx pipe failed: %s\n", 1237 sc->mos_dev.dv_xname, usbd_errstr(err)); 1238 splx(s); 1239 return; 1240 } 1241 1242 /* Start up the receive pipe. */ 1243 for (i = 0; i < MOS_RX_LIST_CNT; i++) { 1244 c = &sc->mos_cdata.mos_rx_chain[i]; 1245 usbd_setup_xfer(c->mos_xfer, sc->mos_ep[MOS_ENDPT_RX], 1246 c, c->mos_buf, sc->mos_bufsz, 1247 USBD_SHORT_XFER_OK | USBD_NO_COPY, 1248 USBD_NO_TIMEOUT, mos_rxeof); 1249 usbd_transfer(c->mos_xfer); 1250 } 1251 1252 ifp->if_flags |= IFF_RUNNING; 1253 ifp->if_flags &= ~IFF_OACTIVE; 1254 1255 splx(s); 1256 1257 timeout_add_sec(&sc->mos_stat_ch, 1); 1258 return; 1259 } 1260 1261 int 1262 mos_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1263 { 1264 struct mos_softc *sc = ifp->if_softc; 1265 struct ifreq *ifr = (struct ifreq *)data; 1266 struct ifaddr *ifa = (struct ifaddr *)data; 1267 int s, error = 0; 1268 1269 s = splnet(); 1270 1271 switch(cmd) { 1272 case SIOCSIFADDR: 1273 ifp->if_flags |= IFF_UP; 1274 if (!(ifp->if_flags & IFF_RUNNING)) 1275 mos_init(sc); 1276 if (ifa->ifa_addr->sa_family == AF_INET) 1277 arp_ifinit(&sc->arpcom, ifa); 1278 break; 1279 1280 case SIOCSIFFLAGS: 1281 if (ifp->if_flags & IFF_UP) { 1282 if (ifp->if_flags & IFF_RUNNING) 1283 error = ENETRESET; 1284 else 1285 mos_init(sc); 1286 } else { 1287 if (ifp->if_flags & IFF_RUNNING) 1288 mos_stop(sc); 1289 } 1290 break; 1291 1292 case SIOCGIFMEDIA: 1293 case SIOCSIFMEDIA: 1294 error = ifmedia_ioctl(ifp, ifr, &sc->mos_mii.mii_media, cmd); 1295 break; 1296 1297 default: 1298 error = ether_ioctl(ifp, &sc->arpcom, cmd, data); 1299 } 1300 1301 if (error == ENETRESET) { 1302 if (ifp->if_flags & IFF_RUNNING) 1303 mos_iff(sc); 1304 error = 0; 1305 } 1306 1307 splx(s); 1308 return(error); 1309 } 1310 1311 void 1312 mos_watchdog(struct ifnet *ifp) 1313 { 1314 struct mos_softc *sc; 1315 struct mos_chain *c; 1316 usbd_status stat; 1317 int s; 1318 1319 sc = ifp->if_softc; 1320 1321 ifp->if_oerrors++; 1322 printf("%s: watchdog timeout\n", sc->mos_dev.dv_xname); 1323 1324 s = splusb(); 1325 c = &sc->mos_cdata.mos_tx_chain[0]; 1326 usbd_get_xfer_status(c->mos_xfer, NULL, NULL, NULL, &stat); 1327 mos_txeof(c->mos_xfer, c, stat); 1328 1329 if (!IFQ_IS_EMPTY(&ifp->if_snd)) 1330 mos_start(ifp); 1331 splx(s); 1332 } 1333 1334 1335 /* 1336 * Stop the adapter and free any mbufs allocated to the 1337 * RX and TX lists. 1338 */ 1339 void 1340 mos_stop(struct mos_softc *sc) 1341 { 1342 usbd_status err; 1343 struct ifnet *ifp; 1344 int i; 1345 1346 mos_reset(sc); 1347 1348 ifp = &sc->arpcom.ac_if; 1349 ifp->if_timer = 0; 1350 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1351 1352 timeout_del(&sc->mos_stat_ch); 1353 1354 /* Stop transfers. */ 1355 if (sc->mos_ep[MOS_ENDPT_RX] != NULL) { 1356 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_RX]); 1357 err = usbd_close_pipe(sc->mos_ep[MOS_ENDPT_RX]); 1358 if (err) { 1359 printf("%s: close rx pipe failed: %s\n", 1360 sc->mos_dev.dv_xname, usbd_errstr(err)); 1361 } 1362 sc->mos_ep[MOS_ENDPT_RX] = NULL; 1363 } 1364 1365 if (sc->mos_ep[MOS_ENDPT_TX] != NULL) { 1366 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_TX]); 1367 err = usbd_close_pipe(sc->mos_ep[MOS_ENDPT_TX]); 1368 if (err) { 1369 printf("%s: close tx pipe failed: %s\n", 1370 sc->mos_dev.dv_xname, usbd_errstr(err)); 1371 } 1372 sc->mos_ep[MOS_ENDPT_TX] = NULL; 1373 } 1374 1375 if (sc->mos_ep[MOS_ENDPT_INTR] != NULL) { 1376 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_INTR]); 1377 err = usbd_close_pipe(sc->mos_ep[MOS_ENDPT_INTR]); 1378 if (err) { 1379 printf("%s: close intr pipe failed: %s\n", 1380 sc->mos_dev.dv_xname, usbd_errstr(err)); 1381 } 1382 sc->mos_ep[MOS_ENDPT_INTR] = NULL; 1383 } 1384 1385 /* Free RX resources. */ 1386 for (i = 0; i < MOS_RX_LIST_CNT; i++) { 1387 if (sc->mos_cdata.mos_rx_chain[i].mos_mbuf != NULL) { 1388 m_freem(sc->mos_cdata.mos_rx_chain[i].mos_mbuf); 1389 sc->mos_cdata.mos_rx_chain[i].mos_mbuf = NULL; 1390 } 1391 if (sc->mos_cdata.mos_rx_chain[i].mos_xfer != NULL) { 1392 usbd_free_xfer(sc->mos_cdata.mos_rx_chain[i].mos_xfer); 1393 sc->mos_cdata.mos_rx_chain[i].mos_xfer = NULL; 1394 } 1395 } 1396 1397 /* Free TX resources. */ 1398 for (i = 0; i < MOS_TX_LIST_CNT; i++) { 1399 if (sc->mos_cdata.mos_tx_chain[i].mos_mbuf != NULL) { 1400 m_freem(sc->mos_cdata.mos_tx_chain[i].mos_mbuf); 1401 sc->mos_cdata.mos_tx_chain[i].mos_mbuf = NULL; 1402 } 1403 if (sc->mos_cdata.mos_tx_chain[i].mos_xfer != NULL) { 1404 usbd_free_xfer(sc->mos_cdata.mos_tx_chain[i].mos_xfer); 1405 sc->mos_cdata.mos_tx_chain[i].mos_xfer = NULL; 1406 } 1407 } 1408 1409 sc->mos_link = 0; 1410 } 1411 1412