if_mos.c revision 224180
1/*- 2 * Copyright (c) 2011 Rick van der Zwet <info@rickvanderzwet.nl> 3 * 4 * Permission to use, copy, modify, and distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17/*- 18 * Copyright (c) 2008 Johann Christian Rode <jcrode@gmx.net> 19 * 20 * Permission to use, copy, modify, and distribute this software for any 21 * purpose with or without fee is hereby granted, provided that the above 22 * copyright notice and this permission notice appear in all copies. 23 * 24 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 25 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 26 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 27 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 28 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 29 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 30 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 31 */ 32 33/*- 34 * Copyright (c) 2005, 2006, 2007 Jonathan Gray <jsg@openbsd.org> 35 * 36 * Permission to use, copy, modify, and distribute this software for any 37 * purpose with or without fee is hereby granted, provided that the above 38 * copyright notice and this permission notice appear in all copies. 39 * 40 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 41 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 42 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 43 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 44 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 45 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 46 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 47 */ 48 49/*- 50 * Copyright (c) 1997, 1998, 1999, 2000-2003 51 * Bill Paul <wpaul@windriver.com>. All rights reserved. 52 * 53 * Redistribution and use in source and binary forms, with or without 54 * modification, are permitted provided that the following conditions 55 * are met: 56 * 1. Redistributions of source code must retain the above copyright 57 * notice, this list of conditions and the following disclaimer. 58 * 2. Redistributions in binary form must reproduce the above copyright 59 * notice, this list of conditions and the following disclaimer in the 60 * documentation and/or other materials provided with the distribution. 61 * 3. All advertising materials mentioning features or use of this software 62 * must display the following acknowledgement: 63 * This product includes software developed by Bill Paul. 64 * 4. Neither the name of the author nor the names of any co-contributors 65 * may be used to endorse or promote products derived from this software 66 * without specific prior written permission. 67 * 68 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 69 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 70 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 71 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 72 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 73 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 74 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 75 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 76 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 77 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 78 * THE POSSIBILITY OF SUCH DAMAGE. 79 */ 80 81#include <sys/cdefs.h> 82__FBSDID("$FreeBSD: head/sys/dev/usb/net/if_mos.c 224180 2011-07-18 12:03:58Z hselasky $"); 83 84/* 85 * Moschip MCS7730/MCS7830 USB to Ethernet controller 86 * The datasheet is available at the following URL: 87 * http://www.moschip.com/data/products/MCS7830/Data%20Sheet_7830.pdf 88 */ 89 90/* 91 * The FreeBSD if_mos.c driver is based on various different sources: 92 * The vendor provided driver at the following URL: 93 * http://www.moschip.com/data/products/MCS7830/Driver_FreeBSD_7830.tar.gz 94 * 95 * Mixed together with the OpenBSD if_mos.c driver for validation and checking 96 * and the FreeBSD if_reu.c as reference for the USB Ethernet framework. 97 */ 98 99#include <sys/stdint.h> 100#include <sys/stddef.h> 101#include <sys/param.h> 102#include <sys/queue.h> 103#include <sys/types.h> 104#include <sys/systm.h> 105#include <sys/kernel.h> 106#include <sys/bus.h> 107#include <sys/module.h> 108#include <sys/lock.h> 109#include <sys/mutex.h> 110#include <sys/condvar.h> 111#include <sys/sysctl.h> 112#include <sys/sx.h> 113#include <sys/unistd.h> 114#include <sys/callout.h> 115#include <sys/malloc.h> 116#include <sys/priv.h> 117 118#include <dev/usb/usb.h> 119#include <dev/usb/usbdi.h> 120#include <dev/usb/usbdi_util.h> 121#include "usbdevs.h" 122 123#define USB_DEBUG_VAR mos_debug 124#include <dev/usb/usb_debug.h> 125#include <dev/usb/usb_process.h> 126 127#include <dev/usb/net/usb_ethernet.h> 128 129//#include <dev/usb/net/if_mosreg.h> 130#include "if_mosreg.h" 131 132#ifdef USB_DEBUG 133static int mos_debug = 0; 134 135SYSCTL_NODE(_hw_usb, OID_AUTO, mos, CTLFLAG_RW, 0, "USB mos"); 136SYSCTL_INT(_hw_usb_mos, OID_AUTO, debug, CTLFLAG_RW, &mos_debug, 0, 137 "Debug level"); 138#endif 139 140#define MOS_DPRINTFN(fmt,...) \ 141 DPRINTF("mos: %s: " fmt "\n",__FUNCTION__,## __VA_ARGS__) 142 143#define USB_PRODUCT_MOSCHIP_MCS7730 0x7730 144#define USB_PRODUCT_SITECOMEU_LN030 0x0021 145 146 147 148/* Various supported device vendors/products. */ 149static const STRUCT_USB_HOST_ID mos_devs[] = { 150 {USB_VPI(USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7730, MCS7730)}, 151 {USB_VPI(USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7830, MCS7830)}, 152 {USB_VPI(USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_LN030, MCS7830)}, 153}; 154 155static int mos_probe(device_t dev); 156static int mos_attach(device_t dev); 157static void mos_attach_post(struct usb_ether *ue); 158static int mos_detach(device_t dev); 159 160static void mos_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error); 161static void mos_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error); 162static void mos_intr_callback(struct usb_xfer *xfer, usb_error_t error); 163static void mos_tick(struct usb_ether *); 164static void mos_start(struct usb_ether *); 165static void mos_init(struct usb_ether *); 166static void mos_chip_init(struct mos_softc *); 167static void mos_stop(struct usb_ether *); 168static int mos_miibus_readreg(device_t, int, int); 169static int mos_miibus_writereg(device_t, int, int, int); 170static void mos_miibus_statchg(device_t); 171static int mos_ifmedia_upd(struct ifnet *); 172static void mos_ifmedia_sts(struct ifnet *, struct ifmediareq *); 173static void mos_reset(struct mos_softc *sc); 174 175static int mos_reg_read_1(struct mos_softc *, int); 176static int mos_reg_read_2(struct mos_softc *, int); 177static int mos_reg_write_1(struct mos_softc *, int, int); 178static int mos_reg_write_2(struct mos_softc *, int, int); 179static int mos_readmac(struct mos_softc *, uint8_t *); 180static int mos_writemac(struct mos_softc *, uint8_t *); 181static int mos_write_mcast(struct mos_softc *, u_char *); 182 183static void mos_setmulti(struct usb_ether *); 184static void mos_setpromisc(struct usb_ether *); 185 186static const struct usb_config mos_config[MOS_ENDPT_MAX] = { 187 188 [MOS_ENDPT_TX] = { 189 .type = UE_BULK, 190 .endpoint = UE_ADDR_ANY, 191 .direction = UE_DIR_OUT, 192 .bufsize = (MCLBYTES + 2), 193 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 194 .callback = mos_bulk_write_callback, 195 .timeout = 10000, 196 }, 197 198 [MOS_ENDPT_RX] = { 199 .type = UE_BULK, 200 .endpoint = UE_ADDR_ANY, 201 .direction = UE_DIR_IN, 202 .bufsize = (MCLBYTES + 4 + ETHER_CRC_LEN), 203 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 204 .callback = mos_bulk_read_callback, 205 }, 206 207 [MOS_ENDPT_INTR] = { 208 .type = UE_INTERRUPT, 209 .endpoint = UE_ADDR_ANY, 210 .direction = UE_DIR_IN, 211 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 212 .bufsize = 0, 213 .callback = mos_intr_callback, 214 }, 215}; 216 217static device_method_t mos_methods[] = { 218 /* Device interface */ 219 DEVMETHOD(device_probe, mos_probe), 220 DEVMETHOD(device_attach, mos_attach), 221 DEVMETHOD(device_detach, mos_detach), 222 223 /* bus interface */ 224 DEVMETHOD(bus_print_child, bus_generic_print_child), 225 226 /* MII interface */ 227 DEVMETHOD(miibus_readreg, mos_miibus_readreg), 228 DEVMETHOD(miibus_writereg, mos_miibus_writereg), 229 DEVMETHOD(miibus_statchg, mos_miibus_statchg), 230 231 {0, 0} 232}; 233 234static driver_t mos_driver = { 235 .name = "mos", 236 .methods = mos_methods, 237 .size = sizeof(struct mos_softc) 238}; 239 240static devclass_t mos_devclass; 241 242DRIVER_MODULE(mos, uhub, mos_driver, mos_devclass, NULL, 0); 243DRIVER_MODULE(miibus, mos, miibus_driver, miibus_devclass, 0, 0); 244MODULE_DEPEND(mos, uether, 1, 1, 1); 245MODULE_DEPEND(mos, usb, 1, 1, 1); 246MODULE_DEPEND(mos, ether, 1, 1, 1); 247MODULE_DEPEND(mos, miibus, 1, 1, 1); 248 249static const struct usb_ether_methods mos_ue_methods = { 250 .ue_attach_post = mos_attach_post, 251 .ue_start = mos_start, 252 .ue_init = mos_init, 253 .ue_stop = mos_stop, 254 .ue_tick = mos_tick, 255 .ue_setmulti = mos_setmulti, 256 .ue_setpromisc = mos_setpromisc, 257 .ue_mii_upd = mos_ifmedia_upd, 258 .ue_mii_sts = mos_ifmedia_sts, 259}; 260 261 262static int 263mos_reg_read_1(struct mos_softc *sc, int reg) 264{ 265 struct usb_device_request req; 266 usb_error_t err; 267 uByte val = 0; 268 269 req.bmRequestType = UT_READ_VENDOR_DEVICE; 270 req.bRequest = MOS_UR_READREG; 271 USETW(req.wValue, 0); 272 USETW(req.wIndex, reg); 273 USETW(req.wLength, 1); 274 275 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 276 277 if (err) { 278 MOS_DPRINTFN("mos_reg_read_1 error, reg: %d\n", reg); 279 return (-1); 280 } 281 return (val); 282} 283 284static int 285mos_reg_read_2(struct mos_softc *sc, int reg) 286{ 287 struct usb_device_request req; 288 usb_error_t err; 289 uWord val; 290 291 USETW(val, 0); 292 293 req.bmRequestType = UT_READ_VENDOR_DEVICE; 294 req.bRequest = MOS_UR_READREG; 295 USETW(req.wValue, 0); 296 USETW(req.wIndex, reg); 297 USETW(req.wLength, 2); 298 299 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 300 301 if (err) { 302 MOS_DPRINTFN("mos_reg_read_2 error, reg: %d", reg); 303 return (-1); 304 } 305 return (UGETW(val)); 306} 307 308static int 309mos_reg_write_1(struct mos_softc *sc, int reg, int aval) 310{ 311 struct usb_device_request req; 312 usb_error_t err; 313 uByte val; 314 val = aval; 315 316 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 317 req.bRequest = MOS_UR_WRITEREG; 318 USETW(req.wValue, 0); 319 USETW(req.wIndex, reg); 320 USETW(req.wLength, 1); 321 322 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 323 324 if (err) { 325 MOS_DPRINTFN("mos_reg_write_1 error, reg: %d", reg); 326 return (-1); 327 } 328 return (0); 329} 330 331static int 332mos_reg_write_2(struct mos_softc *sc, int reg, int aval) 333{ 334 struct usb_device_request req; 335 usb_error_t err; 336 uWord val; 337 338 USETW(val, aval); 339 340 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 341 req.bRequest = MOS_UR_WRITEREG; 342 USETW(req.wValue, 0); 343 USETW(req.wIndex, reg); 344 USETW(req.wLength, 2); 345 346 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 347 348 if (err) { 349 MOS_DPRINTFN("mos_reg_write_2 error, reg: %d", reg); 350 return (-1); 351 } 352 return (0); 353} 354 355static int 356mos_readmac(struct mos_softc *sc, u_char *mac) 357{ 358 struct usb_device_request req; 359 usb_error_t err; 360 361 req.bmRequestType = UT_READ_VENDOR_DEVICE; 362 req.bRequest = MOS_UR_READREG; 363 USETW(req.wValue, 0); 364 USETW(req.wIndex, MOS_MAC); 365 USETW(req.wLength, ETHER_ADDR_LEN); 366 367 err = uether_do_request(&sc->sc_ue, &req, mac, 1000); 368 369 if (err) { 370 return (-1); 371 } 372 return (0); 373} 374 375static int 376mos_writemac(struct mos_softc *sc, uint8_t *mac) 377{ 378 struct usb_device_request req; 379 usb_error_t err; 380 381 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 382 req.bRequest = MOS_UR_WRITEREG; 383 USETW(req.wValue, 0); 384 USETW(req.wIndex, MOS_MAC); 385 USETW(req.wLength, ETHER_ADDR_LEN); 386 387 err = uether_do_request(&sc->sc_ue, &req, mac, 1000); 388 389 if (err) { 390 MOS_DPRINTFN("mos_writemac error"); 391 return (-1); 392 } 393 return (0); 394} 395 396static int 397mos_write_mcast(struct mos_softc *sc, u_char *hashtbl) 398{ 399 struct usb_device_request req; 400 usb_error_t err; 401 402 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 403 req.bRequest = MOS_UR_WRITEREG; 404 USETW(req.wValue, 0); 405 USETW(req.wIndex, MOS_MCAST_TABLE); 406 USETW(req.wLength, 8); 407 408 err = uether_do_request(&sc->sc_ue, &req, hashtbl, 1000); 409 410 if (err) { 411 MOS_DPRINTFN("mos_reg_mcast error"); 412 return (-1); 413 } 414 return (0); 415} 416 417static int 418mos_miibus_readreg(struct device *dev, int phy, int reg) 419{ 420 struct mos_softc *sc = device_get_softc(dev); 421 uWord val; 422 int i, res, locked; 423 424 USETW(val, 0); 425 426 locked = mtx_owned(&sc->sc_mtx); 427 if (!locked) 428 MOS_LOCK(sc); 429 430 mos_reg_write_2(sc, MOS_PHY_DATA, 0); 431 mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) | 432 MOS_PHYCTL_READ); 433 mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) | 434 MOS_PHYSTS_PENDING); 435 436 for (i = 0; i < MOS_TIMEOUT; i++) { 437 if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY) 438 break; 439 } 440 if (i == MOS_TIMEOUT) { 441 MOS_DPRINTFN("MII read timeout"); 442 } 443 res = mos_reg_read_2(sc, MOS_PHY_DATA); 444 445 if (!locked) 446 MOS_UNLOCK(sc); 447 return (res); 448} 449 450static int 451mos_miibus_writereg(device_t dev, int phy, int reg, int val) 452{ 453 struct mos_softc *sc = device_get_softc(dev); 454 int i, locked; 455 456 locked = mtx_owned(&sc->sc_mtx); 457 if (!locked) 458 MOS_LOCK(sc); 459 460 mos_reg_write_2(sc, MOS_PHY_DATA, val); 461 mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) | 462 MOS_PHYCTL_WRITE); 463 mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) | 464 MOS_PHYSTS_PENDING); 465 466 for (i = 0; i < MOS_TIMEOUT; i++) { 467 if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY) 468 break; 469 } 470 if (i == MOS_TIMEOUT) 471 MOS_DPRINTFN("MII write timeout"); 472 473 if (!locked) 474 MOS_UNLOCK(sc); 475 return 0; 476} 477 478static void 479mos_miibus_statchg(device_t dev) 480{ 481 struct mos_softc *sc = device_get_softc(dev); 482 struct mii_data *mii = GET_MII(sc); 483 int val, err, locked; 484 485 locked = mtx_owned(&sc->sc_mtx); 486 if (!locked) 487 MOS_LOCK(sc); 488 489 /* disable RX, TX prior to changing FDX, SPEEDSEL */ 490 val = mos_reg_read_1(sc, MOS_CTL); 491 val &= ~(MOS_CTL_TX_ENB | MOS_CTL_RX_ENB); 492 mos_reg_write_1(sc, MOS_CTL, val); 493 494 /* reset register which counts dropped frames */ 495 mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0); 496 497 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 498 val |= MOS_CTL_FDX_ENB; 499 else 500 val &= ~(MOS_CTL_FDX_ENB); 501 502 switch (IFM_SUBTYPE(mii->mii_media_active)) { 503 case IFM_100_TX: 504 val |= MOS_CTL_SPEEDSEL; 505 break; 506 case IFM_10_T: 507 val &= ~(MOS_CTL_SPEEDSEL); 508 break; 509 } 510 511 /* re-enable TX, RX */ 512 val |= (MOS_CTL_TX_ENB | MOS_CTL_RX_ENB); 513 err = mos_reg_write_1(sc, MOS_CTL, val); 514 515 if (err) 516 MOS_DPRINTFN("media change failed"); 517 518 if (!locked) 519 MOS_UNLOCK(sc); 520} 521 522/* 523 * Set media options. 524 */ 525static int 526mos_ifmedia_upd(struct ifnet *ifp) 527{ 528 struct mos_softc *sc = ifp->if_softc; 529 struct mii_data *mii = GET_MII(sc); 530 struct mii_softc *miisc; 531 532 MOS_LOCK_ASSERT(sc, MA_OWNED); 533 534 sc->mos_link = 0; 535 if (mii->mii_instance) { 536 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 537 mii_phy_reset(miisc); 538 } 539 mii_mediachg(mii); 540 return (0); 541} 542 543/* 544 * Report current media status. 545 */ 546static void 547mos_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 548{ 549 struct mos_softc *sc = ifp->if_softc; 550 struct mii_data *mii = GET_MII(sc); 551 552 MOS_LOCK(sc); 553 mii_pollstat(mii); 554 MOS_UNLOCK(sc); 555 556 ifmr->ifm_active = mii->mii_media_active; 557 ifmr->ifm_status = mii->mii_media_status; 558} 559 560static void 561mos_setpromisc(struct usb_ether *ue) 562{ 563 struct mos_softc *sc = uether_getsc(ue); 564 struct ifnet *ifp = uether_getifp(ue); 565 566 uint8_t rxmode; 567 568 MOS_LOCK_ASSERT(sc, MA_OWNED); 569 570 rxmode = mos_reg_read_1(sc, MOS_CTL); 571 572 /* If we want promiscuous mode, set the allframes bit. */ 573 if (ifp->if_flags & IFF_PROMISC) { 574 rxmode |= MOS_CTL_RX_PROMISC; 575 } else { 576 rxmode &= ~MOS_CTL_RX_PROMISC; 577 } 578 579 mos_reg_write_1(sc, MOS_CTL, rxmode); 580} 581 582 583 584static void 585mos_setmulti(struct usb_ether *ue) 586{ 587 struct mos_softc *sc = uether_getsc(ue); 588 struct ifnet *ifp = uether_getifp(ue); 589 struct ifmultiaddr *ifma; 590 591 uint32_t h = 0; 592 uint8_t rxmode; 593 uint8_t hashtbl[8] = {0, 0, 0, 0, 0, 0, 0, 0}; 594 int allmulti = 0; 595 596 MOS_LOCK_ASSERT(sc, MA_OWNED); 597 598 rxmode = mos_reg_read_1(sc, MOS_CTL); 599 600 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) 601 allmulti = 1; 602 603 /* get all new ones */ 604 if_maddr_rlock(ifp); 605 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 606 if (ifma->ifma_addr->sa_family != AF_LINK) { 607 allmulti = 1; 608 continue; 609 }; 610 h = ether_crc32_be(LLADDR((struct sockaddr_dl *) 611 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; 612 hashtbl[h / 8] |= 1 << (h % 8); 613 } 614 if_maddr_runlock(ifp); 615 616 /* now program new ones */ 617 if (allmulti == 1) { 618 rxmode |= MOS_CTL_ALLMULTI; 619 mos_reg_write_1(sc, MOS_CTL, rxmode); 620 } else { 621 rxmode &= ~MOS_CTL_ALLMULTI; 622 mos_write_mcast(sc, (void *)&hashtbl); 623 mos_reg_write_1(sc, MOS_CTL, rxmode); 624 } 625} 626 627static void 628mos_reset(struct mos_softc *sc) 629{ 630 uint8_t ctl; 631 632 ctl = mos_reg_read_1(sc, MOS_CTL); 633 ctl &= ~(MOS_CTL_RX_PROMISC | MOS_CTL_ALLMULTI | MOS_CTL_TX_ENB | 634 MOS_CTL_RX_ENB); 635 /* Disable RX, TX, promiscuous and allmulticast mode */ 636 mos_reg_write_1(sc, MOS_CTL, ctl); 637 638 /* Reset frame drop counter register to zero */ 639 mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0); 640 641 /* Wait a little while for the chip to get its brains in order. */ 642 usb_pause_mtx(&sc->sc_mtx, hz / 128); 643 return; 644} 645 646static void 647mos_chip_init(struct mos_softc *sc) 648{ 649 int i; 650 651 /* 652 * Rev.C devices have a pause threshold register which needs to be set 653 * at startup. 654 */ 655 if (mos_reg_read_1(sc, MOS_PAUSE_TRHD) != -1) { 656 for (i = 0; i < MOS_PAUSE_REWRITES; i++) 657 mos_reg_write_1(sc, MOS_PAUSE_TRHD, 0); 658 } 659 sc->mos_phyaddrs[0] = 1; 660 sc->mos_phyaddrs[1] = 0xFF; 661} 662 663/* 664 * Probe for a MCS7x30 chip. 665 */ 666static int 667mos_probe(device_t dev) 668{ 669 struct usb_attach_arg *uaa = device_get_ivars(dev); 670 int retval; 671 672 if (uaa->usb_mode != USB_MODE_HOST) 673 return (ENXIO); 674 if (uaa->info.bConfigIndex != MOS_CONFIG_IDX) 675 return (ENXIO); 676 if (uaa->info.bIfaceIndex != MOS_IFACE_IDX) 677 return (ENXIO); 678 679 retval = usbd_lookup_id_by_uaa(mos_devs, sizeof(mos_devs), uaa); 680 return (retval); 681} 682 683/* 684 * Attach the interface. Allocate softc structures, do ifmedia 685 * setup and ethernet/BPF attach. 686 */ 687static int 688mos_attach(device_t dev) 689{ 690 struct usb_attach_arg *uaa = device_get_ivars(dev); 691 struct mos_softc *sc = device_get_softc(dev); 692 struct usb_ether *ue = &sc->sc_ue; 693 uint8_t iface_index; 694 int error; 695 696 sc->mos_flags = USB_GET_DRIVER_INFO(uaa); 697 698 device_set_usb_desc(dev); 699 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 700 701 iface_index = MOS_IFACE_IDX; 702 error = usbd_transfer_setup(uaa->device, &iface_index, 703 sc->sc_xfer, mos_config, MOS_ENDPT_MAX, 704 sc, &sc->sc_mtx); 705 706 if (error) { 707 device_printf(dev, "allocating USB transfers failed\n"); 708 goto detach; 709 } 710 ue->ue_sc = sc; 711 ue->ue_dev = dev; 712 ue->ue_udev = uaa->device; 713 ue->ue_mtx = &sc->sc_mtx; 714 ue->ue_methods = &mos_ue_methods; 715 716 717 if (sc->mos_flags & MCS7730) { 718 MOS_DPRINTFN("model: MCS7730"); 719 } else if (sc->mos_flags & MCS7830) { 720 MOS_DPRINTFN("model: MCS7830"); 721 } 722 error = uether_ifattach(ue); 723 if (error) { 724 device_printf(dev, "could not attach interface\n"); 725 goto detach; 726 } 727 return (0); 728 729 730detach: 731 mos_detach(dev); 732 return (ENXIO); 733} 734 735 736static void 737mos_attach_post(struct usb_ether *ue) 738{ 739 struct mos_softc *sc = uether_getsc(ue); 740 int err; 741 742 /* Read MAC address, inform the world. */ 743 err = mos_readmac(sc, ue->ue_eaddr); 744 745 if (err) 746 MOS_DPRINTFN("couldn't get MAC address"); 747 748 MOS_DPRINTFN("address: %s", ether_sprintf(ue->ue_eaddr)); 749 750 mos_chip_init(sc); 751} 752 753static int 754mos_detach(device_t dev) 755{ 756 struct mos_softc *sc = device_get_softc(dev); 757 struct usb_ether *ue = &sc->sc_ue; 758 759 usbd_transfer_unsetup(sc->sc_xfer, MOS_ENDPT_MAX); 760 uether_ifdetach(ue); 761 mtx_destroy(&sc->sc_mtx); 762 763 return (0); 764} 765 766 767 768 769/* 770 * A frame has been uploaded: pass the resulting mbuf chain up to 771 * the higher level protocols. 772 */ 773static void 774mos_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 775{ 776 struct mos_softc *sc = usbd_xfer_softc(xfer); 777 struct usb_ether *ue = &sc->sc_ue; 778 struct ifnet *ifp = uether_getifp(ue); 779 780 uint8_t rxstat = 0; 781 uint32_t actlen; 782 uint16_t pktlen = 0; 783 struct usb_page_cache *pc; 784 785 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 786 pc = usbd_xfer_get_frame(xfer, 0); 787 788 switch (USB_GET_STATE(xfer)) { 789 case USB_ST_TRANSFERRED: 790 MOS_DPRINTFN("actlen : %d", actlen); 791 if (actlen <= 1) { 792 ifp->if_ierrors++; 793 goto tr_setup; 794 } 795 /* evaluate status byte at the end */ 796 usbd_copy_out(pc, actlen - sizeof(rxstat), &rxstat, 797 sizeof(rxstat)); 798 799 if (rxstat != MOS_RXSTS_VALID) { 800 MOS_DPRINTFN("erroneous frame received"); 801 if (rxstat & MOS_RXSTS_SHORT_FRAME) 802 MOS_DPRINTFN("frame size less than 64 bytes"); 803 if (rxstat & MOS_RXSTS_LARGE_FRAME) { 804 MOS_DPRINTFN("frame size larger than " 805 "1532 bytes"); 806 } 807 if (rxstat & MOS_RXSTS_CRC_ERROR) 808 MOS_DPRINTFN("CRC error"); 809 if (rxstat & MOS_RXSTS_ALIGN_ERROR) 810 MOS_DPRINTFN("alignment error"); 811 ifp->if_ierrors++; 812 goto tr_setup; 813 } 814 /* Remember the last byte was used for the status fields */ 815 pktlen = actlen - 1; 816 if (pktlen < sizeof(struct ether_header)) { 817 MOS_DPRINTFN("error: pktlen %d is smaller " 818 "than ether_header %zd", pktlen, 819 sizeof(struct ether_header)); 820 ifp->if_ierrors++; 821 goto tr_setup; 822 } 823 uether_rxbuf(ue, pc, 0, actlen); 824 /* FALLTHROUGH */ 825 case USB_ST_SETUP: 826tr_setup: 827 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 828 usbd_transfer_submit(xfer); 829 uether_rxflush(ue); 830 return; 831 default: 832 MOS_DPRINTFN("bulk read error, %s", usbd_errstr(error)); 833 if (error != USB_ERR_CANCELLED) { 834 usbd_xfer_set_stall(xfer); 835 goto tr_setup; 836 } 837 MOS_DPRINTFN("start rx %i", usbd_xfer_max_len(xfer)); 838 return; 839 } 840} 841 842/* 843 * A frame was downloaded to the chip. It's safe for us to clean up 844 * the list buffers. 845 */ 846static void 847mos_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 848{ 849 struct mos_softc *sc = usbd_xfer_softc(xfer); 850 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 851 struct usb_page_cache *pc; 852 struct mbuf *m; 853 854 855 856 switch (USB_GET_STATE(xfer)) { 857 case USB_ST_TRANSFERRED: 858 MOS_DPRINTFN("transfer of complete"); 859 ifp->if_opackets++; 860 /* FALLTHROUGH */ 861 case USB_ST_SETUP: 862tr_setup: 863 /* 864 * XXX: don't send anything if there is no link? 865 */ 866 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 867 if (m == NULL) 868 return; 869 870 pc = usbd_xfer_get_frame(xfer, 0); 871 usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len); 872 873 usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len); 874 875 876 /* 877 * if there's a BPF listener, bounce a copy 878 * of this frame to him: 879 */ 880 BPF_MTAP(ifp, m); 881 882 m_freem(m); 883 884 usbd_transfer_submit(xfer); 885 886 ifp->if_opackets++; 887 return; 888 default: 889 MOS_DPRINTFN("usb error on tx: %s\n", usbd_errstr(error)); 890 ifp->if_oerrors++; 891 if (error != USB_ERR_CANCELLED) { 892 usbd_xfer_set_stall(xfer); 893 goto tr_setup; 894 } 895 return; 896 } 897} 898 899static void 900mos_tick(struct usb_ether *ue) 901{ 902 struct mos_softc *sc = uether_getsc(ue); 903 struct mii_data *mii = GET_MII(sc); 904 905 MOS_LOCK_ASSERT(sc, MA_OWNED); 906 907 mii_tick(mii); 908 if (!sc->mos_link && mii->mii_media_status & IFM_ACTIVE && 909 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 910 MOS_DPRINTFN("got link"); 911 sc->mos_link++; 912 mos_start(ue); 913 } 914} 915 916 917static void 918mos_start(struct usb_ether *ue) 919{ 920 struct mos_softc *sc = uether_getsc(ue); 921 922 /* 923 * start the USB transfers, if not already started: 924 */ 925 usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_TX]); 926 usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_RX]); 927 usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_INTR]); 928} 929 930static void 931mos_init(struct usb_ether *ue) 932{ 933 struct mos_softc *sc = uether_getsc(ue); 934 struct ifnet *ifp = uether_getifp(ue); 935 uint8_t rxmode; 936 937 MOS_LOCK_ASSERT(sc, MA_OWNED); 938 939 /* Cancel pending I/O and free all RX/TX buffers. */ 940 mos_reset(sc); 941 942 /* Write MAC address */ 943 mos_writemac(sc, IF_LLADDR(ifp)); 944 945 /* Read and set transmitter IPG values */ 946 sc->mos_ipgs[0] = mos_reg_read_1(sc, MOS_IPG0); 947 sc->mos_ipgs[1] = mos_reg_read_1(sc, MOS_IPG1); 948 mos_reg_write_1(sc, MOS_IPG0, sc->mos_ipgs[0]); 949 mos_reg_write_1(sc, MOS_IPG1, sc->mos_ipgs[1]); 950 951 /* 952 * Enable receiver and transmitter, bridge controls speed/duplex 953 * mode 954 */ 955 rxmode = mos_reg_read_1(sc, MOS_CTL); 956 rxmode |= MOS_CTL_RX_ENB | MOS_CTL_TX_ENB | MOS_CTL_BS_ENB; 957 rxmode &= ~(MOS_CTL_SLEEP); 958 959 mos_setpromisc(ue); 960 961 /* XXX: broadcast mode? */ 962 mos_reg_write_1(sc, MOS_CTL, rxmode); 963 964 /* Load the multicast filter. */ 965 mos_setmulti(ue); 966 967 ifp->if_drv_flags |= IFF_DRV_RUNNING; 968 mos_start(ue); 969} 970 971 972static void 973mos_intr_callback(struct usb_xfer *xfer, usb_error_t error) 974{ 975 struct mos_softc *sc = usbd_xfer_softc(xfer); 976 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 977 struct usb_page_cache *pc; 978 uint32_t pkt; 979 int actlen; 980 981 ifp->if_oerrors++; 982 983 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 984 MOS_DPRINTFN("actlen %i", actlen); 985 986 switch (USB_GET_STATE(xfer)) { 987 case USB_ST_TRANSFERRED: 988 989 pc = usbd_xfer_get_frame(xfer, 0); 990 usbd_copy_out(pc, 0, &pkt, sizeof(pkt)); 991 /* FALLTHROUGH */ 992 case USB_ST_SETUP: 993tr_setup: 994 return; 995 default: 996 if (error != USB_ERR_CANCELLED) { 997 usbd_xfer_set_stall(xfer); 998 goto tr_setup; 999 } 1000 return; 1001 } 1002} 1003 1004 1005/* 1006 * Stop the adapter and free any mbufs allocated to the 1007 * RX and TX lists. 1008 */ 1009static void 1010mos_stop(struct usb_ether *ue) 1011{ 1012 struct mos_softc *sc = uether_getsc(ue); 1013 struct ifnet *ifp = uether_getifp(ue); 1014 1015 mos_reset(sc); 1016 1017 MOS_LOCK_ASSERT(sc, MA_OWNED); 1018 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 1019 1020 /* stop all the transfers, if not already stopped */ 1021 usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_TX]); 1022 usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_RX]); 1023 usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_INTR]); 1024 1025 sc->mos_link = 0; 1026} 1027