if_mos.c revision 227843
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 227843 2011-11-22 21:28:20Z marius $"); 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 135static SYSCTL_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 /* MII interface */ 224 DEVMETHOD(miibus_readreg, mos_miibus_readreg), 225 DEVMETHOD(miibus_writereg, mos_miibus_writereg), 226 DEVMETHOD(miibus_statchg, mos_miibus_statchg), 227 228 DEVMETHOD_END 229}; 230 231static driver_t mos_driver = { 232 .name = "mos", 233 .methods = mos_methods, 234 .size = sizeof(struct mos_softc) 235}; 236 237static devclass_t mos_devclass; 238 239DRIVER_MODULE(mos, uhub, mos_driver, mos_devclass, NULL, 0); 240DRIVER_MODULE(miibus, mos, miibus_driver, miibus_devclass, 0, 0); 241MODULE_DEPEND(mos, uether, 1, 1, 1); 242MODULE_DEPEND(mos, usb, 1, 1, 1); 243MODULE_DEPEND(mos, ether, 1, 1, 1); 244MODULE_DEPEND(mos, miibus, 1, 1, 1); 245 246static const struct usb_ether_methods mos_ue_methods = { 247 .ue_attach_post = mos_attach_post, 248 .ue_start = mos_start, 249 .ue_init = mos_init, 250 .ue_stop = mos_stop, 251 .ue_tick = mos_tick, 252 .ue_setmulti = mos_setmulti, 253 .ue_setpromisc = mos_setpromisc, 254 .ue_mii_upd = mos_ifmedia_upd, 255 .ue_mii_sts = mos_ifmedia_sts, 256}; 257 258 259static int 260mos_reg_read_1(struct mos_softc *sc, int reg) 261{ 262 struct usb_device_request req; 263 usb_error_t err; 264 uByte val = 0; 265 266 req.bmRequestType = UT_READ_VENDOR_DEVICE; 267 req.bRequest = MOS_UR_READREG; 268 USETW(req.wValue, 0); 269 USETW(req.wIndex, reg); 270 USETW(req.wLength, 1); 271 272 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 273 274 if (err) { 275 MOS_DPRINTFN("mos_reg_read_1 error, reg: %d\n", reg); 276 return (-1); 277 } 278 return (val); 279} 280 281static int 282mos_reg_read_2(struct mos_softc *sc, int reg) 283{ 284 struct usb_device_request req; 285 usb_error_t err; 286 uWord val; 287 288 USETW(val, 0); 289 290 req.bmRequestType = UT_READ_VENDOR_DEVICE; 291 req.bRequest = MOS_UR_READREG; 292 USETW(req.wValue, 0); 293 USETW(req.wIndex, reg); 294 USETW(req.wLength, 2); 295 296 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 297 298 if (err) { 299 MOS_DPRINTFN("mos_reg_read_2 error, reg: %d", reg); 300 return (-1); 301 } 302 return (UGETW(val)); 303} 304 305static int 306mos_reg_write_1(struct mos_softc *sc, int reg, int aval) 307{ 308 struct usb_device_request req; 309 usb_error_t err; 310 uByte val; 311 val = aval; 312 313 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 314 req.bRequest = MOS_UR_WRITEREG; 315 USETW(req.wValue, 0); 316 USETW(req.wIndex, reg); 317 USETW(req.wLength, 1); 318 319 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 320 321 if (err) { 322 MOS_DPRINTFN("mos_reg_write_1 error, reg: %d", reg); 323 return (-1); 324 } 325 return (0); 326} 327 328static int 329mos_reg_write_2(struct mos_softc *sc, int reg, int aval) 330{ 331 struct usb_device_request req; 332 usb_error_t err; 333 uWord val; 334 335 USETW(val, aval); 336 337 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 338 req.bRequest = MOS_UR_WRITEREG; 339 USETW(req.wValue, 0); 340 USETW(req.wIndex, reg); 341 USETW(req.wLength, 2); 342 343 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 344 345 if (err) { 346 MOS_DPRINTFN("mos_reg_write_2 error, reg: %d", reg); 347 return (-1); 348 } 349 return (0); 350} 351 352static int 353mos_readmac(struct mos_softc *sc, u_char *mac) 354{ 355 struct usb_device_request req; 356 usb_error_t err; 357 358 req.bmRequestType = UT_READ_VENDOR_DEVICE; 359 req.bRequest = MOS_UR_READREG; 360 USETW(req.wValue, 0); 361 USETW(req.wIndex, MOS_MAC); 362 USETW(req.wLength, ETHER_ADDR_LEN); 363 364 err = uether_do_request(&sc->sc_ue, &req, mac, 1000); 365 366 if (err) { 367 return (-1); 368 } 369 return (0); 370} 371 372static int 373mos_writemac(struct mos_softc *sc, uint8_t *mac) 374{ 375 struct usb_device_request req; 376 usb_error_t err; 377 378 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 379 req.bRequest = MOS_UR_WRITEREG; 380 USETW(req.wValue, 0); 381 USETW(req.wIndex, MOS_MAC); 382 USETW(req.wLength, ETHER_ADDR_LEN); 383 384 err = uether_do_request(&sc->sc_ue, &req, mac, 1000); 385 386 if (err) { 387 MOS_DPRINTFN("mos_writemac error"); 388 return (-1); 389 } 390 return (0); 391} 392 393static int 394mos_write_mcast(struct mos_softc *sc, u_char *hashtbl) 395{ 396 struct usb_device_request req; 397 usb_error_t err; 398 399 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 400 req.bRequest = MOS_UR_WRITEREG; 401 USETW(req.wValue, 0); 402 USETW(req.wIndex, MOS_MCAST_TABLE); 403 USETW(req.wLength, 8); 404 405 err = uether_do_request(&sc->sc_ue, &req, hashtbl, 1000); 406 407 if (err) { 408 MOS_DPRINTFN("mos_reg_mcast error"); 409 return (-1); 410 } 411 return (0); 412} 413 414static int 415mos_miibus_readreg(struct device *dev, int phy, int reg) 416{ 417 struct mos_softc *sc = device_get_softc(dev); 418 uWord val; 419 int i, res, locked; 420 421 USETW(val, 0); 422 423 locked = mtx_owned(&sc->sc_mtx); 424 if (!locked) 425 MOS_LOCK(sc); 426 427 mos_reg_write_2(sc, MOS_PHY_DATA, 0); 428 mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) | 429 MOS_PHYCTL_READ); 430 mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) | 431 MOS_PHYSTS_PENDING); 432 433 for (i = 0; i < MOS_TIMEOUT; i++) { 434 if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY) 435 break; 436 } 437 if (i == MOS_TIMEOUT) { 438 MOS_DPRINTFN("MII read timeout"); 439 } 440 res = mos_reg_read_2(sc, MOS_PHY_DATA); 441 442 if (!locked) 443 MOS_UNLOCK(sc); 444 return (res); 445} 446 447static int 448mos_miibus_writereg(device_t dev, int phy, int reg, int val) 449{ 450 struct mos_softc *sc = device_get_softc(dev); 451 int i, locked; 452 453 locked = mtx_owned(&sc->sc_mtx); 454 if (!locked) 455 MOS_LOCK(sc); 456 457 mos_reg_write_2(sc, MOS_PHY_DATA, val); 458 mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) | 459 MOS_PHYCTL_WRITE); 460 mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) | 461 MOS_PHYSTS_PENDING); 462 463 for (i = 0; i < MOS_TIMEOUT; i++) { 464 if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY) 465 break; 466 } 467 if (i == MOS_TIMEOUT) 468 MOS_DPRINTFN("MII write timeout"); 469 470 if (!locked) 471 MOS_UNLOCK(sc); 472 return 0; 473} 474 475static void 476mos_miibus_statchg(device_t dev) 477{ 478 struct mos_softc *sc = device_get_softc(dev); 479 struct mii_data *mii = GET_MII(sc); 480 int val, err, locked; 481 482 locked = mtx_owned(&sc->sc_mtx); 483 if (!locked) 484 MOS_LOCK(sc); 485 486 /* disable RX, TX prior to changing FDX, SPEEDSEL */ 487 val = mos_reg_read_1(sc, MOS_CTL); 488 val &= ~(MOS_CTL_TX_ENB | MOS_CTL_RX_ENB); 489 mos_reg_write_1(sc, MOS_CTL, val); 490 491 /* reset register which counts dropped frames */ 492 mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0); 493 494 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 495 val |= MOS_CTL_FDX_ENB; 496 else 497 val &= ~(MOS_CTL_FDX_ENB); 498 499 switch (IFM_SUBTYPE(mii->mii_media_active)) { 500 case IFM_100_TX: 501 val |= MOS_CTL_SPEEDSEL; 502 break; 503 case IFM_10_T: 504 val &= ~(MOS_CTL_SPEEDSEL); 505 break; 506 } 507 508 /* re-enable TX, RX */ 509 val |= (MOS_CTL_TX_ENB | MOS_CTL_RX_ENB); 510 err = mos_reg_write_1(sc, MOS_CTL, val); 511 512 if (err) 513 MOS_DPRINTFN("media change failed"); 514 515 if (!locked) 516 MOS_UNLOCK(sc); 517} 518 519/* 520 * Set media options. 521 */ 522static int 523mos_ifmedia_upd(struct ifnet *ifp) 524{ 525 struct mos_softc *sc = ifp->if_softc; 526 struct mii_data *mii = GET_MII(sc); 527 struct mii_softc *miisc; 528 529 MOS_LOCK_ASSERT(sc, MA_OWNED); 530 531 sc->mos_link = 0; 532 if (mii->mii_instance) { 533 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 534 mii_phy_reset(miisc); 535 } 536 mii_mediachg(mii); 537 return (0); 538} 539 540/* 541 * Report current media status. 542 */ 543static void 544mos_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 545{ 546 struct mos_softc *sc = ifp->if_softc; 547 struct mii_data *mii = GET_MII(sc); 548 549 MOS_LOCK(sc); 550 mii_pollstat(mii); 551 552 ifmr->ifm_active = mii->mii_media_active; 553 ifmr->ifm_status = mii->mii_media_status; 554 MOS_UNLOCK(sc); 555} 556 557static void 558mos_setpromisc(struct usb_ether *ue) 559{ 560 struct mos_softc *sc = uether_getsc(ue); 561 struct ifnet *ifp = uether_getifp(ue); 562 563 uint8_t rxmode; 564 565 MOS_LOCK_ASSERT(sc, MA_OWNED); 566 567 rxmode = mos_reg_read_1(sc, MOS_CTL); 568 569 /* If we want promiscuous mode, set the allframes bit. */ 570 if (ifp->if_flags & IFF_PROMISC) { 571 rxmode |= MOS_CTL_RX_PROMISC; 572 } else { 573 rxmode &= ~MOS_CTL_RX_PROMISC; 574 } 575 576 mos_reg_write_1(sc, MOS_CTL, rxmode); 577} 578 579 580 581static void 582mos_setmulti(struct usb_ether *ue) 583{ 584 struct mos_softc *sc = uether_getsc(ue); 585 struct ifnet *ifp = uether_getifp(ue); 586 struct ifmultiaddr *ifma; 587 588 uint32_t h = 0; 589 uint8_t rxmode; 590 uint8_t hashtbl[8] = {0, 0, 0, 0, 0, 0, 0, 0}; 591 int allmulti = 0; 592 593 MOS_LOCK_ASSERT(sc, MA_OWNED); 594 595 rxmode = mos_reg_read_1(sc, MOS_CTL); 596 597 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) 598 allmulti = 1; 599 600 /* get all new ones */ 601 if_maddr_rlock(ifp); 602 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 603 if (ifma->ifma_addr->sa_family != AF_LINK) { 604 allmulti = 1; 605 continue; 606 }; 607 h = ether_crc32_be(LLADDR((struct sockaddr_dl *) 608 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; 609 hashtbl[h / 8] |= 1 << (h % 8); 610 } 611 if_maddr_runlock(ifp); 612 613 /* now program new ones */ 614 if (allmulti == 1) { 615 rxmode |= MOS_CTL_ALLMULTI; 616 mos_reg_write_1(sc, MOS_CTL, rxmode); 617 } else { 618 rxmode &= ~MOS_CTL_ALLMULTI; 619 mos_write_mcast(sc, (void *)&hashtbl); 620 mos_reg_write_1(sc, MOS_CTL, rxmode); 621 } 622} 623 624static void 625mos_reset(struct mos_softc *sc) 626{ 627 uint8_t ctl; 628 629 ctl = mos_reg_read_1(sc, MOS_CTL); 630 ctl &= ~(MOS_CTL_RX_PROMISC | MOS_CTL_ALLMULTI | MOS_CTL_TX_ENB | 631 MOS_CTL_RX_ENB); 632 /* Disable RX, TX, promiscuous and allmulticast mode */ 633 mos_reg_write_1(sc, MOS_CTL, ctl); 634 635 /* Reset frame drop counter register to zero */ 636 mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0); 637 638 /* Wait a little while for the chip to get its brains in order. */ 639 usb_pause_mtx(&sc->sc_mtx, hz / 128); 640 return; 641} 642 643static void 644mos_chip_init(struct mos_softc *sc) 645{ 646 int i; 647 648 /* 649 * Rev.C devices have a pause threshold register which needs to be set 650 * at startup. 651 */ 652 if (mos_reg_read_1(sc, MOS_PAUSE_TRHD) != -1) { 653 for (i = 0; i < MOS_PAUSE_REWRITES; i++) 654 mos_reg_write_1(sc, MOS_PAUSE_TRHD, 0); 655 } 656 sc->mos_phyaddrs[0] = 1; 657 sc->mos_phyaddrs[1] = 0xFF; 658} 659 660/* 661 * Probe for a MCS7x30 chip. 662 */ 663static int 664mos_probe(device_t dev) 665{ 666 struct usb_attach_arg *uaa = device_get_ivars(dev); 667 int retval; 668 669 if (uaa->usb_mode != USB_MODE_HOST) 670 return (ENXIO); 671 if (uaa->info.bConfigIndex != MOS_CONFIG_IDX) 672 return (ENXIO); 673 if (uaa->info.bIfaceIndex != MOS_IFACE_IDX) 674 return (ENXIO); 675 676 retval = usbd_lookup_id_by_uaa(mos_devs, sizeof(mos_devs), uaa); 677 return (retval); 678} 679 680/* 681 * Attach the interface. Allocate softc structures, do ifmedia 682 * setup and ethernet/BPF attach. 683 */ 684static int 685mos_attach(device_t dev) 686{ 687 struct usb_attach_arg *uaa = device_get_ivars(dev); 688 struct mos_softc *sc = device_get_softc(dev); 689 struct usb_ether *ue = &sc->sc_ue; 690 uint8_t iface_index; 691 int error; 692 693 sc->mos_flags = USB_GET_DRIVER_INFO(uaa); 694 695 device_set_usb_desc(dev); 696 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 697 698 iface_index = MOS_IFACE_IDX; 699 error = usbd_transfer_setup(uaa->device, &iface_index, 700 sc->sc_xfer, mos_config, MOS_ENDPT_MAX, 701 sc, &sc->sc_mtx); 702 703 if (error) { 704 device_printf(dev, "allocating USB transfers failed\n"); 705 goto detach; 706 } 707 ue->ue_sc = sc; 708 ue->ue_dev = dev; 709 ue->ue_udev = uaa->device; 710 ue->ue_mtx = &sc->sc_mtx; 711 ue->ue_methods = &mos_ue_methods; 712 713 714 if (sc->mos_flags & MCS7730) { 715 MOS_DPRINTFN("model: MCS7730"); 716 } else if (sc->mos_flags & MCS7830) { 717 MOS_DPRINTFN("model: MCS7830"); 718 } 719 error = uether_ifattach(ue); 720 if (error) { 721 device_printf(dev, "could not attach interface\n"); 722 goto detach; 723 } 724 return (0); 725 726 727detach: 728 mos_detach(dev); 729 return (ENXIO); 730} 731 732 733static void 734mos_attach_post(struct usb_ether *ue) 735{ 736 struct mos_softc *sc = uether_getsc(ue); 737 int err; 738 739 /* Read MAC address, inform the world. */ 740 err = mos_readmac(sc, ue->ue_eaddr); 741 742 if (err) 743 MOS_DPRINTFN("couldn't get MAC address"); 744 745 MOS_DPRINTFN("address: %s", ether_sprintf(ue->ue_eaddr)); 746 747 mos_chip_init(sc); 748} 749 750static int 751mos_detach(device_t dev) 752{ 753 struct mos_softc *sc = device_get_softc(dev); 754 struct usb_ether *ue = &sc->sc_ue; 755 756 usbd_transfer_unsetup(sc->sc_xfer, MOS_ENDPT_MAX); 757 uether_ifdetach(ue); 758 mtx_destroy(&sc->sc_mtx); 759 760 return (0); 761} 762 763 764 765 766/* 767 * A frame has been uploaded: pass the resulting mbuf chain up to 768 * the higher level protocols. 769 */ 770static void 771mos_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 772{ 773 struct mos_softc *sc = usbd_xfer_softc(xfer); 774 struct usb_ether *ue = &sc->sc_ue; 775 struct ifnet *ifp = uether_getifp(ue); 776 777 uint8_t rxstat = 0; 778 uint32_t actlen; 779 uint16_t pktlen = 0; 780 struct usb_page_cache *pc; 781 782 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 783 pc = usbd_xfer_get_frame(xfer, 0); 784 785 switch (USB_GET_STATE(xfer)) { 786 case USB_ST_TRANSFERRED: 787 MOS_DPRINTFN("actlen : %d", actlen); 788 if (actlen <= 1) { 789 ifp->if_ierrors++; 790 goto tr_setup; 791 } 792 /* evaluate status byte at the end */ 793 usbd_copy_out(pc, actlen - sizeof(rxstat), &rxstat, 794 sizeof(rxstat)); 795 796 if (rxstat != MOS_RXSTS_VALID) { 797 MOS_DPRINTFN("erroneous frame received"); 798 if (rxstat & MOS_RXSTS_SHORT_FRAME) 799 MOS_DPRINTFN("frame size less than 64 bytes"); 800 if (rxstat & MOS_RXSTS_LARGE_FRAME) { 801 MOS_DPRINTFN("frame size larger than " 802 "1532 bytes"); 803 } 804 if (rxstat & MOS_RXSTS_CRC_ERROR) 805 MOS_DPRINTFN("CRC error"); 806 if (rxstat & MOS_RXSTS_ALIGN_ERROR) 807 MOS_DPRINTFN("alignment error"); 808 ifp->if_ierrors++; 809 goto tr_setup; 810 } 811 /* Remember the last byte was used for the status fields */ 812 pktlen = actlen - 1; 813 if (pktlen < sizeof(struct ether_header)) { 814 MOS_DPRINTFN("error: pktlen %d is smaller " 815 "than ether_header %zd", pktlen, 816 sizeof(struct ether_header)); 817 ifp->if_ierrors++; 818 goto tr_setup; 819 } 820 uether_rxbuf(ue, pc, 0, actlen); 821 /* FALLTHROUGH */ 822 case USB_ST_SETUP: 823tr_setup: 824 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 825 usbd_transfer_submit(xfer); 826 uether_rxflush(ue); 827 return; 828 default: 829 MOS_DPRINTFN("bulk read error, %s", usbd_errstr(error)); 830 if (error != USB_ERR_CANCELLED) { 831 usbd_xfer_set_stall(xfer); 832 goto tr_setup; 833 } 834 MOS_DPRINTFN("start rx %i", usbd_xfer_max_len(xfer)); 835 return; 836 } 837} 838 839/* 840 * A frame was downloaded to the chip. It's safe for us to clean up 841 * the list buffers. 842 */ 843static void 844mos_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 845{ 846 struct mos_softc *sc = usbd_xfer_softc(xfer); 847 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 848 struct usb_page_cache *pc; 849 struct mbuf *m; 850 851 852 853 switch (USB_GET_STATE(xfer)) { 854 case USB_ST_TRANSFERRED: 855 MOS_DPRINTFN("transfer of complete"); 856 ifp->if_opackets++; 857 /* FALLTHROUGH */ 858 case USB_ST_SETUP: 859tr_setup: 860 /* 861 * XXX: don't send anything if there is no link? 862 */ 863 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 864 if (m == NULL) 865 return; 866 867 pc = usbd_xfer_get_frame(xfer, 0); 868 usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len); 869 870 usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len); 871 872 873 /* 874 * if there's a BPF listener, bounce a copy 875 * of this frame to him: 876 */ 877 BPF_MTAP(ifp, m); 878 879 m_freem(m); 880 881 usbd_transfer_submit(xfer); 882 883 ifp->if_opackets++; 884 return; 885 default: 886 MOS_DPRINTFN("usb error on tx: %s\n", usbd_errstr(error)); 887 ifp->if_oerrors++; 888 if (error != USB_ERR_CANCELLED) { 889 usbd_xfer_set_stall(xfer); 890 goto tr_setup; 891 } 892 return; 893 } 894} 895 896static void 897mos_tick(struct usb_ether *ue) 898{ 899 struct mos_softc *sc = uether_getsc(ue); 900 struct mii_data *mii = GET_MII(sc); 901 902 MOS_LOCK_ASSERT(sc, MA_OWNED); 903 904 mii_tick(mii); 905 if (!sc->mos_link && mii->mii_media_status & IFM_ACTIVE && 906 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 907 MOS_DPRINTFN("got link"); 908 sc->mos_link++; 909 mos_start(ue); 910 } 911} 912 913 914static void 915mos_start(struct usb_ether *ue) 916{ 917 struct mos_softc *sc = uether_getsc(ue); 918 919 /* 920 * start the USB transfers, if not already started: 921 */ 922 usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_TX]); 923 usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_RX]); 924 usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_INTR]); 925} 926 927static void 928mos_init(struct usb_ether *ue) 929{ 930 struct mos_softc *sc = uether_getsc(ue); 931 struct ifnet *ifp = uether_getifp(ue); 932 uint8_t rxmode; 933 934 MOS_LOCK_ASSERT(sc, MA_OWNED); 935 936 /* Cancel pending I/O and free all RX/TX buffers. */ 937 mos_reset(sc); 938 939 /* Write MAC address */ 940 mos_writemac(sc, IF_LLADDR(ifp)); 941 942 /* Read and set transmitter IPG values */ 943 sc->mos_ipgs[0] = mos_reg_read_1(sc, MOS_IPG0); 944 sc->mos_ipgs[1] = mos_reg_read_1(sc, MOS_IPG1); 945 mos_reg_write_1(sc, MOS_IPG0, sc->mos_ipgs[0]); 946 mos_reg_write_1(sc, MOS_IPG1, sc->mos_ipgs[1]); 947 948 /* 949 * Enable receiver and transmitter, bridge controls speed/duplex 950 * mode 951 */ 952 rxmode = mos_reg_read_1(sc, MOS_CTL); 953 rxmode |= MOS_CTL_RX_ENB | MOS_CTL_TX_ENB | MOS_CTL_BS_ENB; 954 rxmode &= ~(MOS_CTL_SLEEP); 955 956 mos_setpromisc(ue); 957 958 /* XXX: broadcast mode? */ 959 mos_reg_write_1(sc, MOS_CTL, rxmode); 960 961 /* Load the multicast filter. */ 962 mos_setmulti(ue); 963 964 ifp->if_drv_flags |= IFF_DRV_RUNNING; 965 mos_start(ue); 966} 967 968 969static void 970mos_intr_callback(struct usb_xfer *xfer, usb_error_t error) 971{ 972 struct mos_softc *sc = usbd_xfer_softc(xfer); 973 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 974 struct usb_page_cache *pc; 975 uint32_t pkt; 976 int actlen; 977 978 ifp->if_oerrors++; 979 980 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 981 MOS_DPRINTFN("actlen %i", actlen); 982 983 switch (USB_GET_STATE(xfer)) { 984 case USB_ST_TRANSFERRED: 985 986 pc = usbd_xfer_get_frame(xfer, 0); 987 usbd_copy_out(pc, 0, &pkt, sizeof(pkt)); 988 /* FALLTHROUGH */ 989 case USB_ST_SETUP: 990tr_setup: 991 return; 992 default: 993 if (error != USB_ERR_CANCELLED) { 994 usbd_xfer_set_stall(xfer); 995 goto tr_setup; 996 } 997 return; 998 } 999} 1000 1001 1002/* 1003 * Stop the adapter and free any mbufs allocated to the 1004 * RX and TX lists. 1005 */ 1006static void 1007mos_stop(struct usb_ether *ue) 1008{ 1009 struct mos_softc *sc = uether_getsc(ue); 1010 struct ifnet *ifp = uether_getifp(ue); 1011 1012 mos_reset(sc); 1013 1014 MOS_LOCK_ASSERT(sc, MA_OWNED); 1015 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 1016 1017 /* stop all the transfers, if not already stopped */ 1018 usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_TX]); 1019 usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_RX]); 1020 usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_INTR]); 1021 1022 sc->mos_link = 0; 1023} 1024