1 /* $OpenBSD: if_mos.c,v 1.36 2016/04/13 11:03:37 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_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) 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 err = usbd_set_config_no(dev, MOS_CONFIG_NO, 1); 639 if (err) { 640 printf("%s: getting interface handle failed\n", 641 sc->mos_dev.dv_xname); 642 return; 643 } 644 645 usb_init_task(&sc->mos_tick_task, mos_tick_task, sc, 646 USB_TASK_TYPE_GENERIC); 647 rw_init(&sc->mos_mii_lock, "mosmii"); 648 usb_init_task(&sc->mos_stop_task, (void (*)(void *))mos_stop, sc, 649 USB_TASK_TYPE_GENERIC); 650 651 err = usbd_device2interface_handle(dev, MOS_IFACE_IDX, &sc->mos_iface); 652 if (err) { 653 printf("%s: getting interface handle failed\n", 654 sc->mos_dev.dv_xname); 655 return; 656 } 657 658 sc->mos_flags = mos_lookup(uaa->vendor, uaa->product)->mos_flags; 659 660 id = usbd_get_interface_descriptor(sc->mos_iface); 661 662 sc->mos_bufsz = MOS_BUFSZ; 663 664 /* Find endpoints. */ 665 for (i = 0; i < id->bNumEndpoints; i++) { 666 ed = usbd_interface2endpoint_descriptor(sc->mos_iface, i); 667 if (!ed) { 668 printf("%s: couldn't get ep %d\n", 669 sc->mos_dev.dv_xname, i); 670 return; 671 } 672 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 673 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 674 sc->mos_ed[MOS_ENDPT_RX] = ed->bEndpointAddress; 675 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 676 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 677 sc->mos_ed[MOS_ENDPT_TX] = ed->bEndpointAddress; 678 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 679 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 680 sc->mos_ed[MOS_ENDPT_INTR] = ed->bEndpointAddress; 681 } 682 } 683 684 s = splnet(); 685 686 printf("%s:", sc->mos_dev.dv_xname); 687 688 if (sc->mos_flags & MCS7730) 689 printf(" MCS7730"); 690 else if (sc->mos_flags & MCS7830) 691 printf(" MCS7830"); 692 else if (sc->mos_flags & MCS7832) 693 printf(" MCS7832"); 694 695 mos_chip_init(sc); 696 697 /* 698 * Read MAC address, inform the world. 699 */ 700 err = mos_readmac(sc, (void*)&eaddr); 701 if (err) { 702 printf("%s: couldn't get MAC address\n", 703 sc->mos_dev.dv_xname); 704 splx(s); 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 ifp->if_capabilities = IFCAP_VLAN_MTU; 720 721 /* Initialize MII/media info. */ 722 mii = GET_MII(sc); 723 mii->mii_ifp = ifp; 724 mii->mii_readreg = mos_miibus_readreg; 725 mii->mii_writereg = mos_miibus_writereg; 726 mii->mii_statchg = mos_miibus_statchg; 727 mii->mii_flags = MIIF_AUTOTSLEEP; 728 729 ifmedia_init(&mii->mii_media, 0, mos_ifmedia_upd, mos_ifmedia_sts); 730 mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0); 731 732 if (LIST_FIRST(&mii->mii_phys) == NULL) { 733 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL); 734 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE); 735 } else 736 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO); 737 738 /* Attach the interface. */ 739 if_attach(ifp); 740 ether_ifattach(ifp); 741 742 timeout_set(&sc->mos_stat_ch, mos_tick, sc); 743 744 splx(s); 745 } 746 747 int 748 mos_detach(struct device *self, int flags) 749 { 750 struct mos_softc *sc = (struct mos_softc *)self; 751 struct ifnet *ifp = GET_IFP(sc); 752 int s; 753 754 DPRINTFN(2,("%s: %s: enter\n", sc->mos_dev.dv_xname, __func__)); 755 756 if (timeout_initialized(&sc->mos_stat_ch)) 757 timeout_del(&sc->mos_stat_ch); 758 759 if (sc->mos_ep[MOS_ENDPT_TX] != NULL) 760 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_TX]); 761 if (sc->mos_ep[MOS_ENDPT_RX] != NULL) 762 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_RX]); 763 if (sc->mos_ep[MOS_ENDPT_INTR] != NULL) 764 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_INTR]); 765 766 /* 767 * Remove any pending tasks. They cannot be executing because they run 768 * in the same thread as detach. 769 */ 770 usb_rem_task(sc->mos_udev, &sc->mos_tick_task); 771 usb_rem_task(sc->mos_udev, &sc->mos_stop_task); 772 s = splusb(); 773 774 if (--sc->mos_refcnt >= 0) { 775 /* Wait for processes to go away */ 776 usb_detach_wait(&sc->mos_dev); 777 } 778 779 if (ifp->if_flags & IFF_RUNNING) 780 mos_stop(sc); 781 782 mii_detach(&sc->mos_mii, MII_PHY_ANY, MII_OFFSET_ANY); 783 ifmedia_delete_instance(&sc->mos_mii.mii_media, IFM_INST_ANY); 784 if (ifp->if_softc != NULL) { 785 ether_ifdetach(ifp); 786 if_detach(ifp); 787 } 788 789 #ifdef DIAGNOSTIC 790 if (sc->mos_ep[MOS_ENDPT_TX] != NULL || 791 sc->mos_ep[MOS_ENDPT_RX] != NULL || 792 sc->mos_ep[MOS_ENDPT_INTR] != NULL) 793 printf("%s: detach has active endpoints\n", 794 sc->mos_dev.dv_xname); 795 #endif 796 797 if (--sc->mos_refcnt >= 0) { 798 /* Wait for processes to go away. */ 799 usb_detach_wait(&sc->mos_dev); 800 } 801 splx(s); 802 803 return (0); 804 } 805 806 struct mbuf * 807 mos_newbuf(void) 808 { 809 struct mbuf *m; 810 811 MGETHDR(m, M_DONTWAIT, MT_DATA); 812 if (m == NULL) 813 return (NULL); 814 815 MCLGET(m, M_DONTWAIT); 816 if (!(m->m_flags & M_EXT)) { 817 m_freem(m); 818 return (NULL); 819 } 820 821 m->m_len = m->m_pkthdr.len = MCLBYTES; 822 m_adj(m, ETHER_ALIGN); 823 824 return (m); 825 } 826 827 int 828 mos_rx_list_init(struct mos_softc *sc) 829 { 830 struct mos_cdata *cd; 831 struct mos_chain *c; 832 int i; 833 834 DPRINTF(("%s: %s: enter\n", sc->mos_dev.dv_xname, __func__)); 835 836 cd = &sc->mos_cdata; 837 for (i = 0; i < MOS_RX_LIST_CNT; i++) { 838 c = &cd->mos_rx_chain[i]; 839 c->mos_sc = sc; 840 c->mos_idx = i; 841 c->mos_mbuf = NULL; 842 if (c->mos_xfer == NULL) { 843 c->mos_xfer = usbd_alloc_xfer(sc->mos_udev); 844 if (c->mos_xfer == NULL) 845 return (ENOBUFS); 846 c->mos_buf = usbd_alloc_buffer(c->mos_xfer, 847 sc->mos_bufsz); 848 if (c->mos_buf == NULL) { 849 usbd_free_xfer(c->mos_xfer); 850 return (ENOBUFS); 851 } 852 } 853 } 854 855 return (0); 856 } 857 858 int 859 mos_tx_list_init(struct mos_softc *sc) 860 { 861 struct mos_cdata *cd; 862 struct mos_chain *c; 863 int i; 864 865 DPRINTF(("%s: %s: enter\n", sc->mos_dev.dv_xname, __func__)); 866 867 cd = &sc->mos_cdata; 868 for (i = 0; i < MOS_TX_LIST_CNT; i++) { 869 c = &cd->mos_tx_chain[i]; 870 c->mos_sc = sc; 871 c->mos_idx = i; 872 c->mos_mbuf = NULL; 873 if (c->mos_xfer == NULL) { 874 c->mos_xfer = usbd_alloc_xfer(sc->mos_udev); 875 if (c->mos_xfer == NULL) 876 return (ENOBUFS); 877 c->mos_buf = usbd_alloc_buffer(c->mos_xfer, 878 sc->mos_bufsz); 879 if (c->mos_buf == NULL) { 880 usbd_free_xfer(c->mos_xfer); 881 return (ENOBUFS); 882 } 883 } 884 } 885 886 return (0); 887 } 888 889 /* 890 * A frame has been uploaded: pass the resulting mbuf chain up to 891 * the higher level protocols. 892 */ 893 void 894 mos_rxeof(struct usbd_xfer *xfer, void *priv, usbd_status status) 895 { 896 struct mos_chain *c = (struct mos_chain *)priv; 897 struct mos_softc *sc = c->mos_sc; 898 struct ifnet *ifp = GET_IFP(sc); 899 u_char *buf = c->mos_buf; 900 u_int8_t rxstat; 901 u_int32_t total_len; 902 u_int16_t pktlen = 0; 903 struct mbuf_list ml = MBUF_LIST_INITIALIZER(); 904 struct mbuf *m; 905 int s; 906 907 DPRINTFN(10,("%s: %s: enter\n", sc->mos_dev.dv_xname,__func__)); 908 909 if (usbd_is_dying(sc->mos_udev)) 910 return; 911 912 if (!(ifp->if_flags & IFF_RUNNING)) 913 return; 914 915 if (status != USBD_NORMAL_COMPLETION) { 916 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 917 return; 918 if (usbd_ratecheck(&sc->mos_rx_notice)) { 919 printf("%s: usb errors on rx: %s\n", 920 sc->mos_dev.dv_xname, usbd_errstr(status)); 921 } 922 if (status == USBD_STALLED) 923 usbd_clear_endpoint_stall_async(sc->mos_ep[MOS_ENDPT_RX]); 924 goto done; 925 } 926 927 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 928 929 if (total_len <= 1) 930 goto done; 931 932 /* evaluate status byte at the end */ 933 pktlen = total_len - 1; 934 rxstat = buf[pktlen] & MOS_RXSTS_MASK; 935 936 if (rxstat != MOS_RXSTS_VALID) { 937 DPRINTF(("%s: erroneous frame received: ", 938 sc->mos_dev.dv_xname)); 939 if (rxstat & MOS_RXSTS_SHORT_FRAME) 940 DPRINTF(("frame size less than 64 bytes\n")); 941 if (rxstat & MOS_RXSTS_LARGE_FRAME) 942 DPRINTF(("frame size larger than 1532 bytes\n")); 943 if (rxstat & MOS_RXSTS_CRC_ERROR) 944 DPRINTF(("CRC error\n")); 945 if (rxstat & MOS_RXSTS_ALIGN_ERROR) 946 DPRINTF(("alignment error\n")); 947 ifp->if_ierrors++; 948 goto done; 949 } 950 951 if ( pktlen < sizeof(struct ether_header) ) { 952 ifp->if_ierrors++; 953 goto done; 954 } 955 956 m = mos_newbuf(); 957 if (m == NULL) { 958 ifp->if_ierrors++; 959 goto done; 960 } 961 962 m->m_pkthdr.len = m->m_len = pktlen; 963 964 memcpy(mtod(m, char *), buf, pktlen); 965 966 ml_enqueue(&ml, m); 967 968 s = splnet(); 969 if_input(ifp, &ml); 970 splx(s); 971 972 done: 973 memset(c->mos_buf, 0, sc->mos_bufsz); 974 975 /* Setup new transfer. */ 976 usbd_setup_xfer(xfer, sc->mos_ep[MOS_ENDPT_RX], 977 c, c->mos_buf, sc->mos_bufsz, 978 USBD_SHORT_XFER_OK | USBD_NO_COPY, 979 USBD_NO_TIMEOUT, mos_rxeof); 980 usbd_transfer(xfer); 981 982 DPRINTFN(10,("%s: %s: start rx\n", sc->mos_dev.dv_xname, __func__)); 983 984 return; 985 } 986 987 /* 988 * A frame was downloaded to the chip. It's safe for us to clean up 989 * the list buffers. 990 */ 991 992 void 993 mos_txeof(struct usbd_xfer *xfer, void *priv, usbd_status status) 994 { 995 struct mos_softc *sc; 996 struct mos_chain *c; 997 struct ifnet *ifp; 998 int s; 999 1000 c = priv; 1001 sc = c->mos_sc; 1002 ifp = &sc->arpcom.ac_if; 1003 1004 if (usbd_is_dying(sc->mos_udev)) 1005 return; 1006 1007 s = splnet(); 1008 1009 if (status != USBD_NORMAL_COMPLETION) { 1010 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 1011 splx(s); 1012 return; 1013 } 1014 ifp->if_oerrors++; 1015 printf("%s: usb error on tx: %s\n", sc->mos_dev.dv_xname, 1016 usbd_errstr(status)); 1017 if (status == USBD_STALLED) 1018 usbd_clear_endpoint_stall_async(sc->mos_ep[MOS_ENDPT_TX]); 1019 splx(s); 1020 return; 1021 } 1022 1023 ifp->if_timer = 0; 1024 ifq_clr_oactive(&ifp->if_snd); 1025 1026 m_freem(c->mos_mbuf); 1027 c->mos_mbuf = NULL; 1028 1029 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1030 mos_start(ifp); 1031 1032 ifp->if_opackets++; 1033 splx(s); 1034 return; 1035 } 1036 1037 void 1038 mos_tick(void *xsc) 1039 { 1040 struct mos_softc *sc = xsc; 1041 1042 if (sc == NULL) 1043 return; 1044 1045 DPRINTFN(0xff, ("%s: %s: enter\n", sc->mos_dev.dv_xname, 1046 __func__)); 1047 1048 if (usbd_is_dying(sc->mos_udev)) 1049 return; 1050 1051 /* Perform periodic stuff in process context */ 1052 usb_add_task(sc->mos_udev, &sc->mos_tick_task); 1053 1054 } 1055 1056 void 1057 mos_tick_task(void *xsc) 1058 { 1059 int s; 1060 struct mos_softc *sc; 1061 struct ifnet *ifp; 1062 struct mii_data *mii; 1063 1064 sc = xsc; 1065 1066 if (sc == NULL) 1067 return; 1068 1069 if (usbd_is_dying(sc->mos_udev)) 1070 return; 1071 1072 ifp = GET_IFP(sc); 1073 mii = GET_MII(sc); 1074 if (mii == NULL) 1075 return; 1076 1077 s = splnet(); 1078 1079 mii_tick(mii); 1080 if (!sc->mos_link && mii->mii_media_status & IFM_ACTIVE && 1081 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 1082 DPRINTF(("%s: %s: got link\n", 1083 sc->mos_dev.dv_xname, __func__)); 1084 sc->mos_link++; 1085 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1086 mos_start(ifp); 1087 } 1088 1089 timeout_add_sec(&sc->mos_stat_ch, 1); 1090 1091 splx(s); 1092 } 1093 1094 int 1095 mos_encap(struct mos_softc *sc, struct mbuf *m, int idx) 1096 { 1097 struct mos_chain *c; 1098 usbd_status err; 1099 int length; 1100 1101 c = &sc->mos_cdata.mos_tx_chain[idx]; 1102 1103 m_copydata(m, 0, m->m_pkthdr.len, c->mos_buf); 1104 length = m->m_pkthdr.len; 1105 1106 c->mos_mbuf = m; 1107 1108 usbd_setup_xfer(c->mos_xfer, sc->mos_ep[MOS_ENDPT_TX], 1109 c, c->mos_buf, length, USBD_FORCE_SHORT_XFER | USBD_NO_COPY, 1110 10000, mos_txeof); 1111 1112 /* Transmit */ 1113 err = usbd_transfer(c->mos_xfer); 1114 if (err != USBD_IN_PROGRESS) { 1115 mos_stop(sc); 1116 return(EIO); 1117 } 1118 1119 sc->mos_cdata.mos_tx_cnt++; 1120 1121 return(0); 1122 } 1123 1124 void 1125 mos_start(struct ifnet *ifp) 1126 { 1127 struct mos_softc *sc; 1128 struct mbuf *m_head = NULL; 1129 1130 sc = ifp->if_softc; 1131 1132 if (!sc->mos_link) 1133 return; 1134 1135 if (ifq_is_oactive(&ifp->if_snd)) 1136 return; 1137 1138 m_head = ifq_deq_begin(&ifp->if_snd); 1139 if (m_head == NULL) 1140 return; 1141 1142 if (mos_encap(sc, m_head, 0)) { 1143 ifq_deq_rollback(&ifp->if_snd, m_head); 1144 ifq_set_oactive(&ifp->if_snd); 1145 return; 1146 } 1147 ifq_deq_commit(&ifp->if_snd, m_head); 1148 1149 /* 1150 * If there's a BPF listener, bounce a copy of this frame 1151 * to him. 1152 */ 1153 #if NBPFILTER > 0 1154 if (ifp->if_bpf) 1155 bpf_mtap(ifp->if_bpf, m_head, BPF_DIRECTION_OUT); 1156 #endif 1157 1158 ifq_set_oactive(&ifp->if_snd); 1159 1160 /* 1161 * Set a timeout in case the chip goes out to lunch. 1162 */ 1163 ifp->if_timer = 5; 1164 1165 return; 1166 } 1167 1168 void 1169 mos_init(void *xsc) 1170 { 1171 struct mos_softc *sc = xsc; 1172 struct ifnet *ifp = &sc->arpcom.ac_if; 1173 struct mos_chain *c; 1174 usbd_status err; 1175 u_int8_t rxmode; 1176 int i, s; 1177 1178 s = splnet(); 1179 1180 /* 1181 * Cancel pending I/O and free all RX/TX buffers. 1182 */ 1183 mos_reset(sc); 1184 1185 /* 1186 * Write MAC address 1187 */ 1188 mos_writemac(sc, sc->arpcom.ac_enaddr); 1189 1190 /* Init RX ring. */ 1191 if (mos_rx_list_init(sc) == ENOBUFS) { 1192 printf("%s: rx list init failed\n", sc->mos_dev.dv_xname); 1193 splx(s); 1194 return; 1195 } 1196 1197 /* Init TX ring. */ 1198 if (mos_tx_list_init(sc) == ENOBUFS) { 1199 printf("%s: tx list init failed\n", sc->mos_dev.dv_xname); 1200 splx(s); 1201 return; 1202 } 1203 1204 /* Read and set transmitter IPG values */ 1205 sc->mos_ipgs[0] = mos_reg_read_1(sc, MOS_IPG0); 1206 sc->mos_ipgs[1] = mos_reg_read_1(sc, MOS_IPG1); 1207 mos_reg_write_1(sc, MOS_IPG0, sc->mos_ipgs[0]); 1208 mos_reg_write_1(sc, MOS_IPG1, sc->mos_ipgs[1]); 1209 1210 /* Program promiscuous mode and multicast filters. */ 1211 mos_iff(sc); 1212 1213 /* Enable receiver and transmitter, bridge controls speed/duplex mode */ 1214 rxmode = mos_reg_read_1(sc, MOS_CTL); 1215 rxmode |= MOS_CTL_RX_ENB | MOS_CTL_TX_ENB | MOS_CTL_BS_ENB; 1216 rxmode &= ~(MOS_CTL_SLEEP); 1217 mos_reg_write_1(sc, MOS_CTL, rxmode); 1218 1219 mii_mediachg(GET_MII(sc)); 1220 1221 /* Open RX and TX pipes. */ 1222 err = usbd_open_pipe(sc->mos_iface, sc->mos_ed[MOS_ENDPT_RX], 1223 USBD_EXCLUSIVE_USE, &sc->mos_ep[MOS_ENDPT_RX]); 1224 if (err) { 1225 printf("%s: open rx pipe failed: %s\n", 1226 sc->mos_dev.dv_xname, usbd_errstr(err)); 1227 splx(s); 1228 return; 1229 } 1230 1231 err = usbd_open_pipe(sc->mos_iface, sc->mos_ed[MOS_ENDPT_TX], 1232 USBD_EXCLUSIVE_USE, &sc->mos_ep[MOS_ENDPT_TX]); 1233 if (err) { 1234 printf("%s: open tx pipe failed: %s\n", 1235 sc->mos_dev.dv_xname, usbd_errstr(err)); 1236 splx(s); 1237 return; 1238 } 1239 1240 /* Start up the receive pipe. */ 1241 for (i = 0; i < MOS_RX_LIST_CNT; i++) { 1242 c = &sc->mos_cdata.mos_rx_chain[i]; 1243 usbd_setup_xfer(c->mos_xfer, sc->mos_ep[MOS_ENDPT_RX], 1244 c, c->mos_buf, sc->mos_bufsz, 1245 USBD_SHORT_XFER_OK | USBD_NO_COPY, 1246 USBD_NO_TIMEOUT, mos_rxeof); 1247 usbd_transfer(c->mos_xfer); 1248 } 1249 1250 ifp->if_flags |= IFF_RUNNING; 1251 ifq_clr_oactive(&ifp->if_snd); 1252 1253 splx(s); 1254 1255 timeout_add_sec(&sc->mos_stat_ch, 1); 1256 return; 1257 } 1258 1259 int 1260 mos_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1261 { 1262 struct mos_softc *sc = ifp->if_softc; 1263 struct ifreq *ifr = (struct ifreq *)data; 1264 int s, error = 0; 1265 1266 s = splnet(); 1267 1268 switch(cmd) { 1269 case SIOCSIFADDR: 1270 ifp->if_flags |= IFF_UP; 1271 if (!(ifp->if_flags & IFF_RUNNING)) 1272 mos_init(sc); 1273 break; 1274 1275 case SIOCSIFFLAGS: 1276 if (ifp->if_flags & IFF_UP) { 1277 if (ifp->if_flags & IFF_RUNNING) 1278 error = ENETRESET; 1279 else 1280 mos_init(sc); 1281 } else { 1282 if (ifp->if_flags & IFF_RUNNING) 1283 mos_stop(sc); 1284 } 1285 break; 1286 1287 case SIOCGIFMEDIA: 1288 case SIOCSIFMEDIA: 1289 error = ifmedia_ioctl(ifp, ifr, &sc->mos_mii.mii_media, cmd); 1290 break; 1291 1292 default: 1293 error = ether_ioctl(ifp, &sc->arpcom, cmd, data); 1294 } 1295 1296 if (error == ENETRESET) { 1297 if (ifp->if_flags & IFF_RUNNING) 1298 mos_iff(sc); 1299 error = 0; 1300 } 1301 1302 splx(s); 1303 return(error); 1304 } 1305 1306 void 1307 mos_watchdog(struct ifnet *ifp) 1308 { 1309 struct mos_softc *sc; 1310 struct mos_chain *c; 1311 usbd_status stat; 1312 int s; 1313 1314 sc = ifp->if_softc; 1315 1316 ifp->if_oerrors++; 1317 printf("%s: watchdog timeout\n", sc->mos_dev.dv_xname); 1318 1319 s = splusb(); 1320 c = &sc->mos_cdata.mos_tx_chain[0]; 1321 usbd_get_xfer_status(c->mos_xfer, NULL, NULL, NULL, &stat); 1322 mos_txeof(c->mos_xfer, c, stat); 1323 1324 if (!IFQ_IS_EMPTY(&ifp->if_snd)) 1325 mos_start(ifp); 1326 splx(s); 1327 } 1328 1329 1330 /* 1331 * Stop the adapter and free any mbufs allocated to the 1332 * RX and TX lists. 1333 */ 1334 void 1335 mos_stop(struct mos_softc *sc) 1336 { 1337 usbd_status err; 1338 struct ifnet *ifp; 1339 int i; 1340 1341 mos_reset(sc); 1342 1343 ifp = &sc->arpcom.ac_if; 1344 ifp->if_timer = 0; 1345 ifp->if_flags &= ~IFF_RUNNING; 1346 ifq_clr_oactive(&ifp->if_snd); 1347 1348 timeout_del(&sc->mos_stat_ch); 1349 1350 /* Stop transfers. */ 1351 if (sc->mos_ep[MOS_ENDPT_RX] != NULL) { 1352 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_RX]); 1353 err = usbd_close_pipe(sc->mos_ep[MOS_ENDPT_RX]); 1354 if (err) { 1355 printf("%s: close rx pipe failed: %s\n", 1356 sc->mos_dev.dv_xname, usbd_errstr(err)); 1357 } 1358 sc->mos_ep[MOS_ENDPT_RX] = NULL; 1359 } 1360 1361 if (sc->mos_ep[MOS_ENDPT_TX] != NULL) { 1362 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_TX]); 1363 err = usbd_close_pipe(sc->mos_ep[MOS_ENDPT_TX]); 1364 if (err) { 1365 printf("%s: close tx pipe failed: %s\n", 1366 sc->mos_dev.dv_xname, usbd_errstr(err)); 1367 } 1368 sc->mos_ep[MOS_ENDPT_TX] = NULL; 1369 } 1370 1371 if (sc->mos_ep[MOS_ENDPT_INTR] != NULL) { 1372 usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_INTR]); 1373 err = usbd_close_pipe(sc->mos_ep[MOS_ENDPT_INTR]); 1374 if (err) { 1375 printf("%s: close intr pipe failed: %s\n", 1376 sc->mos_dev.dv_xname, usbd_errstr(err)); 1377 } 1378 sc->mos_ep[MOS_ENDPT_INTR] = NULL; 1379 } 1380 1381 /* Free RX resources. */ 1382 for (i = 0; i < MOS_RX_LIST_CNT; i++) { 1383 if (sc->mos_cdata.mos_rx_chain[i].mos_mbuf != NULL) { 1384 m_freem(sc->mos_cdata.mos_rx_chain[i].mos_mbuf); 1385 sc->mos_cdata.mos_rx_chain[i].mos_mbuf = NULL; 1386 } 1387 if (sc->mos_cdata.mos_rx_chain[i].mos_xfer != NULL) { 1388 usbd_free_xfer(sc->mos_cdata.mos_rx_chain[i].mos_xfer); 1389 sc->mos_cdata.mos_rx_chain[i].mos_xfer = NULL; 1390 } 1391 } 1392 1393 /* Free TX resources. */ 1394 for (i = 0; i < MOS_TX_LIST_CNT; i++) { 1395 if (sc->mos_cdata.mos_tx_chain[i].mos_mbuf != NULL) { 1396 m_freem(sc->mos_cdata.mos_tx_chain[i].mos_mbuf); 1397 sc->mos_cdata.mos_tx_chain[i].mos_mbuf = NULL; 1398 } 1399 if (sc->mos_cdata.mos_tx_chain[i].mos_xfer != NULL) { 1400 usbd_free_xfer(sc->mos_cdata.mos_tx_chain[i].mos_xfer); 1401 sc->mos_cdata.mos_tx_chain[i].mos_xfer = NULL; 1402 } 1403 } 1404 1405 sc->mos_link = 0; 1406 } 1407 1408