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("$FreeBSD$"); 83 84/* 85 * Moschip MCS7730/MCS7830/MCS7832 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/socket.h> 106#include <sys/kernel.h> 107#include <sys/bus.h> 108#include <sys/module.h> 109#include <sys/lock.h> 110#include <sys/mutex.h> 111#include <sys/condvar.h> 112#include <sys/sysctl.h> 113#include <sys/sx.h> 114#include <sys/unistd.h> 115#include <sys/callout.h> 116#include <sys/malloc.h> 117#include <sys/priv.h> 118 119#include <net/if.h> 120#include <net/if_var.h> 121 122#include <dev/usb/usb.h> 123#include <dev/usb/usbdi.h> 124#include <dev/usb/usbdi_util.h> 125#include "usbdevs.h" 126 127#define USB_DEBUG_VAR mos_debug 128#include <dev/usb/usb_debug.h> 129#include <dev/usb/usb_process.h> 130 131#include <dev/usb/net/usb_ethernet.h> 132 133//#include <dev/usb/net/if_mosreg.h> 134#include "if_mosreg.h" 135 136#ifdef USB_DEBUG 137static int mos_debug = 0; 138 139static SYSCTL_NODE(_hw_usb, OID_AUTO, mos, CTLFLAG_RW, 0, "USB mos"); 140SYSCTL_INT(_hw_usb_mos, OID_AUTO, debug, CTLFLAG_RWTUN, &mos_debug, 0, 141 "Debug level"); 142#endif 143 144#define MOS_DPRINTFN(fmt,...) \ 145 DPRINTF("mos: %s: " fmt "\n",__FUNCTION__,## __VA_ARGS__) 146 147#define USB_PRODUCT_MOSCHIP_MCS7730 0x7730 148#define USB_PRODUCT_SITECOMEU_LN030 0x0021 149 150 151 152/* Various supported device vendors/products. */ 153static const STRUCT_USB_HOST_ID mos_devs[] = { 154 {USB_VPI(USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7730, MCS7730)}, 155 {USB_VPI(USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7830, MCS7830)}, 156 {USB_VPI(USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7832, MCS7832)}, 157 {USB_VPI(USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_LN030, MCS7830)}, 158}; 159 160static int mos_probe(device_t dev); 161static int mos_attach(device_t dev); 162static void mos_attach_post(struct usb_ether *ue); 163static int mos_detach(device_t dev); 164 165static void mos_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error); 166static void mos_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error); 167static void mos_intr_callback(struct usb_xfer *xfer, usb_error_t error); 168static void mos_tick(struct usb_ether *); 169static void mos_start(struct usb_ether *); 170static void mos_init(struct usb_ether *); 171static void mos_chip_init(struct mos_softc *); 172static void mos_stop(struct usb_ether *); 173static int mos_miibus_readreg(device_t, int, int); 174static int mos_miibus_writereg(device_t, int, int, int); 175static void mos_miibus_statchg(device_t); 176static int mos_ifmedia_upd(struct ifnet *); 177static void mos_ifmedia_sts(struct ifnet *, struct ifmediareq *); 178static void mos_reset(struct mos_softc *sc); 179 180static int mos_reg_read_1(struct mos_softc *, int); 181static int mos_reg_read_2(struct mos_softc *, int); 182static int mos_reg_write_1(struct mos_softc *, int, int); 183static int mos_reg_write_2(struct mos_softc *, int, int); 184static int mos_readmac(struct mos_softc *, uint8_t *); 185static int mos_writemac(struct mos_softc *, uint8_t *); 186static int mos_write_mcast(struct mos_softc *, u_char *); 187 188static void mos_setmulti(struct usb_ether *); 189static void mos_setpromisc(struct usb_ether *); 190 191static const struct usb_config mos_config[MOS_ENDPT_MAX] = { 192 193 [MOS_ENDPT_TX] = { 194 .type = UE_BULK, 195 .endpoint = UE_ADDR_ANY, 196 .direction = UE_DIR_OUT, 197 .bufsize = (MCLBYTES + 2), 198 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 199 .callback = mos_bulk_write_callback, 200 .timeout = 10000, 201 }, 202 203 [MOS_ENDPT_RX] = { 204 .type = UE_BULK, 205 .endpoint = UE_ADDR_ANY, 206 .direction = UE_DIR_IN, 207 .bufsize = (MCLBYTES + 4 + ETHER_CRC_LEN), 208 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 209 .callback = mos_bulk_read_callback, 210 }, 211 212 [MOS_ENDPT_INTR] = { 213 .type = UE_INTERRUPT, 214 .endpoint = UE_ADDR_ANY, 215 .direction = UE_DIR_IN, 216 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 217 .bufsize = 0, 218 .callback = mos_intr_callback, 219 }, 220}; 221 222static device_method_t mos_methods[] = { 223 /* Device interface */ 224 DEVMETHOD(device_probe, mos_probe), 225 DEVMETHOD(device_attach, mos_attach), 226 DEVMETHOD(device_detach, mos_detach), 227 228 /* MII interface */ 229 DEVMETHOD(miibus_readreg, mos_miibus_readreg), 230 DEVMETHOD(miibus_writereg, mos_miibus_writereg), 231 DEVMETHOD(miibus_statchg, mos_miibus_statchg), 232 233 DEVMETHOD_END 234}; 235 236static driver_t mos_driver = { 237 .name = "mos", 238 .methods = mos_methods, 239 .size = sizeof(struct mos_softc) 240}; 241 242static devclass_t mos_devclass; 243 244DRIVER_MODULE(mos, uhub, mos_driver, mos_devclass, NULL, 0); 245DRIVER_MODULE(miibus, mos, miibus_driver, miibus_devclass, 0, 0); 246MODULE_DEPEND(mos, uether, 1, 1, 1); 247MODULE_DEPEND(mos, usb, 1, 1, 1); 248MODULE_DEPEND(mos, ether, 1, 1, 1); 249MODULE_DEPEND(mos, miibus, 1, 1, 1); 250USB_PNP_HOST_INFO(mos_devs); 251 252static const struct usb_ether_methods mos_ue_methods = { 253 .ue_attach_post = mos_attach_post, 254 .ue_start = mos_start, 255 .ue_init = mos_init, 256 .ue_stop = mos_stop, 257 .ue_tick = mos_tick, 258 .ue_setmulti = mos_setmulti, 259 .ue_setpromisc = mos_setpromisc, 260 .ue_mii_upd = mos_ifmedia_upd, 261 .ue_mii_sts = mos_ifmedia_sts, 262}; 263 264 265static int 266mos_reg_read_1(struct mos_softc *sc, int reg) 267{ 268 struct usb_device_request req; 269 usb_error_t err; 270 uByte val = 0; 271 272 req.bmRequestType = UT_READ_VENDOR_DEVICE; 273 req.bRequest = MOS_UR_READREG; 274 USETW(req.wValue, 0); 275 USETW(req.wIndex, reg); 276 USETW(req.wLength, 1); 277 278 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 279 280 if (err) { 281 MOS_DPRINTFN("mos_reg_read_1 error, reg: %d\n", reg); 282 return (-1); 283 } 284 return (val); 285} 286 287static int 288mos_reg_read_2(struct mos_softc *sc, int reg) 289{ 290 struct usb_device_request req; 291 usb_error_t err; 292 uWord val; 293 294 USETW(val, 0); 295 296 req.bmRequestType = UT_READ_VENDOR_DEVICE; 297 req.bRequest = MOS_UR_READREG; 298 USETW(req.wValue, 0); 299 USETW(req.wIndex, reg); 300 USETW(req.wLength, 2); 301 302 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 303 304 if (err) { 305 MOS_DPRINTFN("mos_reg_read_2 error, reg: %d", reg); 306 return (-1); 307 } 308 return (UGETW(val)); 309} 310 311static int 312mos_reg_write_1(struct mos_softc *sc, int reg, int aval) 313{ 314 struct usb_device_request req; 315 usb_error_t err; 316 uByte val; 317 val = aval; 318 319 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 320 req.bRequest = MOS_UR_WRITEREG; 321 USETW(req.wValue, 0); 322 USETW(req.wIndex, reg); 323 USETW(req.wLength, 1); 324 325 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 326 327 if (err) { 328 MOS_DPRINTFN("mos_reg_write_1 error, reg: %d", reg); 329 return (-1); 330 } 331 return (0); 332} 333 334static int 335mos_reg_write_2(struct mos_softc *sc, int reg, int aval) 336{ 337 struct usb_device_request req; 338 usb_error_t err; 339 uWord val; 340 341 USETW(val, aval); 342 343 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 344 req.bRequest = MOS_UR_WRITEREG; 345 USETW(req.wValue, 0); 346 USETW(req.wIndex, reg); 347 USETW(req.wLength, 2); 348 349 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 350 351 if (err) { 352 MOS_DPRINTFN("mos_reg_write_2 error, reg: %d", reg); 353 return (-1); 354 } 355 return (0); 356} 357 358static int 359mos_readmac(struct mos_softc *sc, u_char *mac) 360{ 361 struct usb_device_request req; 362 usb_error_t err; 363 364 req.bmRequestType = UT_READ_VENDOR_DEVICE; 365 req.bRequest = MOS_UR_READREG; 366 USETW(req.wValue, 0); 367 USETW(req.wIndex, MOS_MAC); 368 USETW(req.wLength, ETHER_ADDR_LEN); 369 370 err = uether_do_request(&sc->sc_ue, &req, mac, 1000); 371 372 if (err) { 373 return (-1); 374 } 375 return (0); 376} 377 378static int 379mos_writemac(struct mos_softc *sc, uint8_t *mac) 380{ 381 struct usb_device_request req; 382 usb_error_t err; 383 384 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 385 req.bRequest = MOS_UR_WRITEREG; 386 USETW(req.wValue, 0); 387 USETW(req.wIndex, MOS_MAC); 388 USETW(req.wLength, ETHER_ADDR_LEN); 389 390 err = uether_do_request(&sc->sc_ue, &req, mac, 1000); 391 392 if (err) { 393 MOS_DPRINTFN("mos_writemac error"); 394 return (-1); 395 } 396 return (0); 397} 398 399static int 400mos_write_mcast(struct mos_softc *sc, u_char *hashtbl) 401{ 402 struct usb_device_request req; 403 usb_error_t err; 404 405 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 406 req.bRequest = MOS_UR_WRITEREG; 407 USETW(req.wValue, 0); 408 USETW(req.wIndex, MOS_MCAST_TABLE); 409 USETW(req.wLength, 8); 410 411 err = uether_do_request(&sc->sc_ue, &req, hashtbl, 1000); 412 413 if (err) { 414 MOS_DPRINTFN("mos_reg_mcast error"); 415 return (-1); 416 } 417 return (0); 418} 419 420static int 421mos_miibus_readreg(device_t dev, int phy, int reg) 422{ 423 struct mos_softc *sc = device_get_softc(dev); 424 uWord val; 425 int i, res, locked; 426 427 USETW(val, 0); 428 429 locked = mtx_owned(&sc->sc_mtx); 430 if (!locked) 431 MOS_LOCK(sc); 432 433 mos_reg_write_2(sc, MOS_PHY_DATA, 0); 434 mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) | 435 MOS_PHYCTL_READ); 436 mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) | 437 MOS_PHYSTS_PENDING); 438 439 for (i = 0; i < MOS_TIMEOUT; i++) { 440 if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY) 441 break; 442 } 443 if (i == MOS_TIMEOUT) { 444 MOS_DPRINTFN("MII read timeout"); 445 } 446 res = mos_reg_read_2(sc, MOS_PHY_DATA); 447 448 if (!locked) 449 MOS_UNLOCK(sc); 450 return (res); 451} 452 453static int 454mos_miibus_writereg(device_t dev, int phy, int reg, int val) 455{ 456 struct mos_softc *sc = device_get_softc(dev); 457 int i, locked; 458 459 locked = mtx_owned(&sc->sc_mtx); 460 if (!locked) 461 MOS_LOCK(sc); 462 463 mos_reg_write_2(sc, MOS_PHY_DATA, val); 464 mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) | 465 MOS_PHYCTL_WRITE); 466 mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) | 467 MOS_PHYSTS_PENDING); 468 469 for (i = 0; i < MOS_TIMEOUT; i++) { 470 if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY) 471 break; 472 } 473 if (i == MOS_TIMEOUT) 474 MOS_DPRINTFN("MII write timeout"); 475 476 if (!locked) 477 MOS_UNLOCK(sc); 478 return 0; 479} 480 481static void 482mos_miibus_statchg(device_t dev) 483{ 484 struct mos_softc *sc = device_get_softc(dev); 485 struct mii_data *mii = GET_MII(sc); 486 int val, err, locked; 487 488 locked = mtx_owned(&sc->sc_mtx); 489 if (!locked) 490 MOS_LOCK(sc); 491 492 /* disable RX, TX prior to changing FDX, SPEEDSEL */ 493 val = mos_reg_read_1(sc, MOS_CTL); 494 val &= ~(MOS_CTL_TX_ENB | MOS_CTL_RX_ENB); 495 mos_reg_write_1(sc, MOS_CTL, val); 496 497 /* reset register which counts dropped frames */ 498 mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0); 499 500 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 501 val |= MOS_CTL_FDX_ENB; 502 else 503 val &= ~(MOS_CTL_FDX_ENB); 504 505 switch (IFM_SUBTYPE(mii->mii_media_active)) { 506 case IFM_100_TX: 507 val |= MOS_CTL_SPEEDSEL; 508 break; 509 case IFM_10_T: 510 val &= ~(MOS_CTL_SPEEDSEL); 511 break; 512 } 513 514 /* re-enable TX, RX */ 515 val |= (MOS_CTL_TX_ENB | MOS_CTL_RX_ENB); 516 err = mos_reg_write_1(sc, MOS_CTL, val); 517 518 if (err) 519 MOS_DPRINTFN("media change failed"); 520 521 if (!locked) 522 MOS_UNLOCK(sc); 523} 524 525/* 526 * Set media options. 527 */ 528static int 529mos_ifmedia_upd(struct ifnet *ifp) 530{ 531 struct mos_softc *sc = ifp->if_softc; 532 struct mii_data *mii = GET_MII(sc); 533 struct mii_softc *miisc; 534 int error; 535 536 MOS_LOCK_ASSERT(sc, MA_OWNED); 537 538 sc->mos_link = 0; 539 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 540 PHY_RESET(miisc); 541 error = mii_mediachg(mii); 542 return (error); 543} 544 545/* 546 * Report current media status. 547 */ 548static void 549mos_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 550{ 551 struct mos_softc *sc = ifp->if_softc; 552 struct mii_data *mii = GET_MII(sc); 553 554 MOS_LOCK(sc); 555 mii_pollstat(mii); 556 557 ifmr->ifm_active = mii->mii_media_active; 558 ifmr->ifm_status = mii->mii_media_status; 559 MOS_UNLOCK(sc); 560} 561 562static void 563mos_setpromisc(struct usb_ether *ue) 564{ 565 struct mos_softc *sc = uether_getsc(ue); 566 struct ifnet *ifp = uether_getifp(ue); 567 568 uint8_t rxmode; 569 570 MOS_LOCK_ASSERT(sc, MA_OWNED); 571 572 rxmode = mos_reg_read_1(sc, MOS_CTL); 573 574 /* If we want promiscuous mode, set the allframes bit. */ 575 if (ifp->if_flags & IFF_PROMISC) { 576 rxmode |= MOS_CTL_RX_PROMISC; 577 } else { 578 rxmode &= ~MOS_CTL_RX_PROMISC; 579 } 580 581 mos_reg_write_1(sc, MOS_CTL, rxmode); 582} 583 584 585 586static void 587mos_setmulti(struct usb_ether *ue) 588{ 589 struct mos_softc *sc = uether_getsc(ue); 590 struct ifnet *ifp = uether_getifp(ue); 591 struct ifmultiaddr *ifma; 592 593 uint32_t h = 0; 594 uint8_t rxmode; 595 uint8_t hashtbl[8] = {0, 0, 0, 0, 0, 0, 0, 0}; 596 int allmulti = 0; 597 598 MOS_LOCK_ASSERT(sc, MA_OWNED); 599 600 rxmode = mos_reg_read_1(sc, MOS_CTL); 601 602 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) 603 allmulti = 1; 604 605 /* get all new ones */ 606 if_maddr_rlock(ifp); 607 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 608 if (ifma->ifma_addr->sa_family != AF_LINK) { 609 allmulti = 1; 610 continue; 611 } 612 h = ether_crc32_be(LLADDR((struct sockaddr_dl *) 613 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; 614 hashtbl[h / 8] |= 1 << (h % 8); 615 } 616 if_maddr_runlock(ifp); 617 618 /* now program new ones */ 619 if (allmulti == 1) { 620 rxmode |= MOS_CTL_ALLMULTI; 621 mos_reg_write_1(sc, MOS_CTL, rxmode); 622 } else { 623 rxmode &= ~MOS_CTL_ALLMULTI; 624 mos_write_mcast(sc, (void *)&hashtbl); 625 mos_reg_write_1(sc, MOS_CTL, rxmode); 626 } 627} 628 629static void 630mos_reset(struct mos_softc *sc) 631{ 632 uint8_t ctl; 633 634 ctl = mos_reg_read_1(sc, MOS_CTL); 635 ctl &= ~(MOS_CTL_RX_PROMISC | MOS_CTL_ALLMULTI | MOS_CTL_TX_ENB | 636 MOS_CTL_RX_ENB); 637 /* Disable RX, TX, promiscuous and allmulticast mode */ 638 mos_reg_write_1(sc, MOS_CTL, ctl); 639 640 /* Reset frame drop counter register to zero */ 641 mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0); 642 643 /* Wait a little while for the chip to get its brains in order. */ 644 usb_pause_mtx(&sc->sc_mtx, hz / 128); 645 return; 646} 647 648static void 649mos_chip_init(struct mos_softc *sc) 650{ 651 int i; 652 653 /* 654 * Rev.C devices have a pause threshold register which needs to be set 655 * at startup. 656 */ 657 if (mos_reg_read_1(sc, MOS_PAUSE_TRHD) != -1) { 658 for (i = 0; i < MOS_PAUSE_REWRITES; i++) 659 mos_reg_write_1(sc, MOS_PAUSE_TRHD, 0); 660 } 661 sc->mos_phyaddrs[0] = 1; 662 sc->mos_phyaddrs[1] = 0xFF; 663} 664 665/* 666 * Probe for a MCS7x30 chip. 667 */ 668static int 669mos_probe(device_t dev) 670{ 671 struct usb_attach_arg *uaa = device_get_ivars(dev); 672 int retval; 673 674 if (uaa->usb_mode != USB_MODE_HOST) 675 return (ENXIO); 676 if (uaa->info.bConfigIndex != MOS_CONFIG_IDX) 677 return (ENXIO); 678 if (uaa->info.bIfaceIndex != MOS_IFACE_IDX) 679 return (ENXIO); 680 681 retval = usbd_lookup_id_by_uaa(mos_devs, sizeof(mos_devs), uaa); 682 return (retval); 683} 684 685/* 686 * Attach the interface. Allocate softc structures, do ifmedia 687 * setup and ethernet/BPF attach. 688 */ 689static int 690mos_attach(device_t dev) 691{ 692 struct usb_attach_arg *uaa = device_get_ivars(dev); 693 struct mos_softc *sc = device_get_softc(dev); 694 struct usb_ether *ue = &sc->sc_ue; 695 uint8_t iface_index; 696 int error; 697 698 sc->mos_flags = USB_GET_DRIVER_INFO(uaa); 699 700 device_set_usb_desc(dev); 701 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 702 703 iface_index = MOS_IFACE_IDX; 704 error = usbd_transfer_setup(uaa->device, &iface_index, 705 sc->sc_xfer, mos_config, MOS_ENDPT_MAX, 706 sc, &sc->sc_mtx); 707 708 if (error) { 709 device_printf(dev, "allocating USB transfers failed\n"); 710 goto detach; 711 } 712 ue->ue_sc = sc; 713 ue->ue_dev = dev; 714 ue->ue_udev = uaa->device; 715 ue->ue_mtx = &sc->sc_mtx; 716 ue->ue_methods = &mos_ue_methods; 717 718 719 if (sc->mos_flags & MCS7730) { 720 MOS_DPRINTFN("model: MCS7730"); 721 } else if (sc->mos_flags & MCS7830) { 722 MOS_DPRINTFN("model: MCS7830"); 723 } else if (sc->mos_flags & MCS7832) { 724 MOS_DPRINTFN("model: MCS7832"); 725 } 726 error = uether_ifattach(ue); 727 if (error) { 728 device_printf(dev, "could not attach interface\n"); 729 goto detach; 730 } 731 return (0); 732 733 734detach: 735 mos_detach(dev); 736 return (ENXIO); 737} 738 739 740static void 741mos_attach_post(struct usb_ether *ue) 742{ 743 struct mos_softc *sc = uether_getsc(ue); 744 int err; 745 746 /* Read MAC address, inform the world. */ 747 err = mos_readmac(sc, ue->ue_eaddr); 748 749 if (err) 750 MOS_DPRINTFN("couldn't get MAC address"); 751 752 MOS_DPRINTFN("address: %s", ether_sprintf(ue->ue_eaddr)); 753 754 mos_chip_init(sc); 755} 756 757static int 758mos_detach(device_t dev) 759{ 760 struct mos_softc *sc = device_get_softc(dev); 761 struct usb_ether *ue = &sc->sc_ue; 762 763 usbd_transfer_unsetup(sc->sc_xfer, MOS_ENDPT_MAX); 764 uether_ifdetach(ue); 765 mtx_destroy(&sc->sc_mtx); 766 767 return (0); 768} 769 770 771 772 773/* 774 * A frame has been uploaded: pass the resulting mbuf chain up to 775 * the higher level protocols. 776 */ 777static void 778mos_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 779{ 780 struct mos_softc *sc = usbd_xfer_softc(xfer); 781 struct usb_ether *ue = &sc->sc_ue; 782 struct ifnet *ifp = uether_getifp(ue); 783 784 uint8_t rxstat = 0; 785 uint32_t actlen; 786 uint16_t pktlen = 0; 787 struct usb_page_cache *pc; 788 789 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 790 pc = usbd_xfer_get_frame(xfer, 0); 791 792 switch (USB_GET_STATE(xfer)) { 793 case USB_ST_TRANSFERRED: 794 MOS_DPRINTFN("actlen : %d", actlen); 795 if (actlen <= 1) { 796 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 797 goto tr_setup; 798 } 799 /* evaluate status byte at the end */ 800 usbd_copy_out(pc, actlen - sizeof(rxstat), &rxstat, 801 sizeof(rxstat)); 802 803 if (rxstat != MOS_RXSTS_VALID) { 804 MOS_DPRINTFN("erroneous frame received"); 805 if (rxstat & MOS_RXSTS_SHORT_FRAME) 806 MOS_DPRINTFN("frame size less than 64 bytes"); 807 if (rxstat & MOS_RXSTS_LARGE_FRAME) { 808 MOS_DPRINTFN("frame size larger than " 809 "1532 bytes"); 810 } 811 if (rxstat & MOS_RXSTS_CRC_ERROR) 812 MOS_DPRINTFN("CRC error"); 813 if (rxstat & MOS_RXSTS_ALIGN_ERROR) 814 MOS_DPRINTFN("alignment error"); 815 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 816 goto tr_setup; 817 } 818 /* Remember the last byte was used for the status fields */ 819 pktlen = actlen - 1; 820 if (pktlen < sizeof(struct ether_header)) { 821 MOS_DPRINTFN("error: pktlen %d is smaller " 822 "than ether_header %zd", pktlen, 823 sizeof(struct ether_header)); 824 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 825 goto tr_setup; 826 } 827 uether_rxbuf(ue, pc, 0, actlen); 828 /* FALLTHROUGH */ 829 case USB_ST_SETUP: 830tr_setup: 831 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 832 usbd_transfer_submit(xfer); 833 uether_rxflush(ue); 834 return; 835 default: 836 MOS_DPRINTFN("bulk read error, %s", usbd_errstr(error)); 837 if (error != USB_ERR_CANCELLED) { 838 usbd_xfer_set_stall(xfer); 839 goto tr_setup; 840 } 841 MOS_DPRINTFN("start rx %i", usbd_xfer_max_len(xfer)); 842 return; 843 } 844} 845 846/* 847 * A frame was downloaded to the chip. It's safe for us to clean up 848 * the list buffers. 849 */ 850static void 851mos_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 852{ 853 struct mos_softc *sc = usbd_xfer_softc(xfer); 854 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 855 struct usb_page_cache *pc; 856 struct mbuf *m; 857 858 859 860 switch (USB_GET_STATE(xfer)) { 861 case USB_ST_TRANSFERRED: 862 MOS_DPRINTFN("transfer of complete"); 863 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 864 /* FALLTHROUGH */ 865 case USB_ST_SETUP: 866tr_setup: 867 /* 868 * XXX: don't send anything if there is no link? 869 */ 870 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 871 if (m == NULL) 872 return; 873 874 pc = usbd_xfer_get_frame(xfer, 0); 875 usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len); 876 877 usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len); 878 879 880 /* 881 * if there's a BPF listener, bounce a copy 882 * of this frame to him: 883 */ 884 BPF_MTAP(ifp, m); 885 886 m_freem(m); 887 888 usbd_transfer_submit(xfer); 889 890 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 891 return; 892 default: 893 MOS_DPRINTFN("usb error on tx: %s\n", usbd_errstr(error)); 894 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 895 if (error != USB_ERR_CANCELLED) { 896 usbd_xfer_set_stall(xfer); 897 goto tr_setup; 898 } 899 return; 900 } 901} 902 903static void 904mos_tick(struct usb_ether *ue) 905{ 906 struct mos_softc *sc = uether_getsc(ue); 907 struct mii_data *mii = GET_MII(sc); 908 909 MOS_LOCK_ASSERT(sc, MA_OWNED); 910 911 mii_tick(mii); 912 if (!sc->mos_link && mii->mii_media_status & IFM_ACTIVE && 913 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 914 MOS_DPRINTFN("got link"); 915 sc->mos_link++; 916 mos_start(ue); 917 } 918} 919 920 921static void 922mos_start(struct usb_ether *ue) 923{ 924 struct mos_softc *sc = uether_getsc(ue); 925 926 /* 927 * start the USB transfers, if not already started: 928 */ 929 usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_TX]); 930 usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_RX]); 931 usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_INTR]); 932} 933 934static void 935mos_init(struct usb_ether *ue) 936{ 937 struct mos_softc *sc = uether_getsc(ue); 938 struct ifnet *ifp = uether_getifp(ue); 939 uint8_t rxmode; 940 941 MOS_LOCK_ASSERT(sc, MA_OWNED); 942 943 /* Cancel pending I/O and free all RX/TX buffers. */ 944 mos_reset(sc); 945 946 /* Write MAC address */ 947 mos_writemac(sc, IF_LLADDR(ifp)); 948 949 /* Read and set transmitter IPG values */ 950 sc->mos_ipgs[0] = mos_reg_read_1(sc, MOS_IPG0); 951 sc->mos_ipgs[1] = mos_reg_read_1(sc, MOS_IPG1); 952 mos_reg_write_1(sc, MOS_IPG0, sc->mos_ipgs[0]); 953 mos_reg_write_1(sc, MOS_IPG1, sc->mos_ipgs[1]); 954 955 /* 956 * Enable receiver and transmitter, bridge controls speed/duplex 957 * mode 958 */ 959 rxmode = mos_reg_read_1(sc, MOS_CTL); 960 rxmode |= MOS_CTL_RX_ENB | MOS_CTL_TX_ENB | MOS_CTL_BS_ENB; 961 rxmode &= ~(MOS_CTL_SLEEP); 962 963 mos_setpromisc(ue); 964 965 /* XXX: broadcast mode? */ 966 mos_reg_write_1(sc, MOS_CTL, rxmode); 967 968 /* Load the multicast filter. */ 969 mos_setmulti(ue); 970 971 ifp->if_drv_flags |= IFF_DRV_RUNNING; 972 mos_start(ue); 973} 974 975 976static void 977mos_intr_callback(struct usb_xfer *xfer, usb_error_t error) 978{ 979 struct mos_softc *sc = usbd_xfer_softc(xfer); 980 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 981 struct usb_page_cache *pc; 982 uint32_t pkt; 983 int actlen; 984 985 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 986 987 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 988 MOS_DPRINTFN("actlen %i", actlen); 989 990 switch (USB_GET_STATE(xfer)) { 991 case USB_ST_TRANSFERRED: 992 993 pc = usbd_xfer_get_frame(xfer, 0); 994 usbd_copy_out(pc, 0, &pkt, sizeof(pkt)); 995 /* FALLTHROUGH */ 996 case USB_ST_SETUP: 997tr_setup: 998 return; 999 default: 1000 if (error != USB_ERR_CANCELLED) { 1001 usbd_xfer_set_stall(xfer); 1002 goto tr_setup; 1003 } 1004 return; 1005 } 1006} 1007 1008 1009/* 1010 * Stop the adapter and free any mbufs allocated to the 1011 * RX and TX lists. 1012 */ 1013static void 1014mos_stop(struct usb_ether *ue) 1015{ 1016 struct mos_softc *sc = uether_getsc(ue); 1017 struct ifnet *ifp = uether_getifp(ue); 1018 1019 mos_reset(sc); 1020 1021 MOS_LOCK_ASSERT(sc, MA_OWNED); 1022 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 1023 1024 /* stop all the transfers, if not already stopped */ 1025 usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_TX]); 1026 usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_RX]); 1027 usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_INTR]); 1028 1029 sc->mos_link = 0; 1030} 1031