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 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/linker_set.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 <dev/usb/usb.h> 120 #include <dev/usb/usbdi.h> 121 #include <dev/usb/usbdi_util.h> 122 #include "usbdevs.h" 123 124 #define USB_DEBUG_VAR mos_debug 125 #include <dev/usb/usb_debug.h> 126 #include <dev/usb/usb_process.h> 127 128 #include <dev/usb/net/usb_ethernet.h> 129 130 //#include <dev/usb/net/if_mosreg.h> 131 #include "if_mosreg.h" 132 133 #ifdef USB_DEBUG 134 static int mos_debug = 0; 135 136 SYSCTL_NODE(_hw_usb, OID_AUTO, mos, CTLFLAG_RW, 0, "USB mos"); 137 SYSCTL_INT(_hw_usb_mos, OID_AUTO, debug, CTLFLAG_RW, &mos_debug, 0, 138 "Debug level"); 139 #endif 140 141 #define MOS_DPRINTFN(fmt,...) \ 142 DPRINTF("mos: %s: " fmt "\n",__FUNCTION__,## __VA_ARGS__) 143 144 #define USB_PRODUCT_MOSCHIP_MCS7730 0x7730 145 #define USB_PRODUCT_SITECOMEU_LN030 0x0021 146 147 148 149 /* Various supported device vendors/products. */ 150 static const struct usb_device_id mos_devs[] = { 151 {USB_VPI(USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7730, MCS7730)}, 152 {USB_VPI(USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7830, MCS7830)}, 153 {USB_VPI(USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_LN030, MCS7830)}, 154 }; 155 156 static int mos_probe(device_t dev); 157 static int mos_attach(device_t dev); 158 static void mos_attach_post(struct usb_ether *ue); 159 static int mos_detach(device_t dev); 160 161 static void mos_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error); 162 static void mos_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error); 163 static void mos_intr_callback(struct usb_xfer *xfer, usb_error_t error); 164 static void mos_tick(struct usb_ether *); 165 static void mos_start(struct usb_ether *); 166 static void mos_init(struct usb_ether *); 167 static void mos_chip_init(struct mos_softc *); 168 static void mos_stop(struct usb_ether *); 169 static int mos_miibus_readreg(device_t, int, int); 170 static int mos_miibus_writereg(device_t, int, int, int); 171 static void mos_miibus_statchg(device_t); 172 static int mos_ifmedia_upd(struct ifnet *); 173 static void mos_ifmedia_sts(struct ifnet *, struct ifmediareq *); 174 static void mos_reset(struct mos_softc *sc); 175 176 static int mos_reg_read_1(struct mos_softc *, int); 177 static int mos_reg_read_2(struct mos_softc *, int); 178 static int mos_reg_write_1(struct mos_softc *, int, int); 179 static int mos_reg_write_2(struct mos_softc *, int, int); 180 static int mos_readmac(struct mos_softc *, uint8_t *); 181 static int mos_writemac(struct mos_softc *, uint8_t *); 182 static int mos_write_mcast(struct mos_softc *, u_char *); 183 184 static void mos_setmulti(struct usb_ether *); 185 static void mos_setpromisc(struct usb_ether *); 186 187 static const struct usb_config mos_config[MOS_ENDPT_MAX] = { 188 189 [MOS_ENDPT_TX] = { 190 .type = UE_BULK, 191 .endpoint = UE_ADDR_ANY, 192 .direction = UE_DIR_OUT, 193 .bufsize = (MCLBYTES + 2), 194 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 195 .callback = mos_bulk_write_callback, 196 .timeout = 10000, 197 }, 198 199 [MOS_ENDPT_RX] = { 200 .type = UE_BULK, 201 .endpoint = UE_ADDR_ANY, 202 .direction = UE_DIR_IN, 203 .bufsize = (MCLBYTES + 4 + ETHER_CRC_LEN), 204 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 205 .callback = mos_bulk_read_callback, 206 }, 207 208 [MOS_ENDPT_INTR] = { 209 .type = UE_INTERRUPT, 210 .endpoint = UE_ADDR_ANY, 211 .direction = UE_DIR_IN, 212 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 213 .bufsize = 0, 214 .callback = mos_intr_callback, 215 }, 216 }; 217 218 static device_method_t mos_methods[] = { 219 /* Device interface */ 220 DEVMETHOD(device_probe, mos_probe), 221 DEVMETHOD(device_attach, mos_attach), 222 DEVMETHOD(device_detach, mos_detach), 223 224 /* bus interface */ 225 DEVMETHOD(bus_print_child, bus_generic_print_child), 226 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 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 {0, 0} 234 }; 235 236 static driver_t mos_driver = { 237 .name = "mos", 238 .methods = mos_methods, 239 .size = sizeof(struct mos_softc) 240 }; 241 242 static devclass_t mos_devclass; 243 244 DRIVER_MODULE(mos, uhub, mos_driver, mos_devclass, NULL, 0); 245 DRIVER_MODULE(miibus, mos, miibus_driver, miibus_devclass, 0, 0); 246 MODULE_DEPEND(mos, uether, 1, 1, 1); 247 MODULE_DEPEND(mos, usb, 1, 1, 1); 248 MODULE_DEPEND(mos, ether, 1, 1, 1); 249 MODULE_DEPEND(mos, miibus, 1, 1, 1); 250 251 static const struct usb_ether_methods mos_ue_methods = { 252 .ue_attach_post = mos_attach_post, 253 .ue_start = mos_start, 254 .ue_init = mos_init, 255 .ue_stop = mos_stop, 256 .ue_tick = mos_tick, 257 .ue_setmulti = mos_setmulti, 258 .ue_setpromisc = mos_setpromisc, 259 .ue_mii_upd = mos_ifmedia_upd, 260 .ue_mii_sts = mos_ifmedia_sts, 261 }; 262 263 264 static int 265 mos_reg_read_1(struct mos_softc *sc, int reg) 266 { 267 struct usb_device_request req; 268 usb_error_t err; 269 uByte val = 0; 270 271 req.bmRequestType = UT_READ_VENDOR_DEVICE; 272 req.bRequest = MOS_UR_READREG; 273 USETW(req.wValue, 0); 274 USETW(req.wIndex, reg); 275 USETW(req.wLength, 1); 276 277 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 278 279 if (err) { 280 MOS_DPRINTFN("mos_reg_read_1 error, reg: %d\n", reg); 281 return (-1); 282 } 283 return (val); 284 } 285 286 static int 287 mos_reg_read_2(struct mos_softc *sc, int reg) 288 { 289 struct usb_device_request req; 290 usb_error_t err; 291 uWord val; 292 293 USETW(val, 0); 294 295 req.bmRequestType = UT_READ_VENDOR_DEVICE; 296 req.bRequest = MOS_UR_READREG; 297 USETW(req.wValue, 0); 298 USETW(req.wIndex, reg); 299 USETW(req.wLength, 2); 300 301 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 302 303 if (err) { 304 MOS_DPRINTFN("mos_reg_read_2 error, reg: %d", reg); 305 return (-1); 306 } 307 return (UGETW(val)); 308 } 309 310 static int 311 mos_reg_write_1(struct mos_softc *sc, int reg, int aval) 312 { 313 struct usb_device_request req; 314 usb_error_t err; 315 uByte val; 316 val = aval; 317 318 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 319 req.bRequest = MOS_UR_WRITEREG; 320 USETW(req.wValue, 0); 321 USETW(req.wIndex, reg); 322 USETW(req.wLength, 1); 323 324 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 325 326 if (err) { 327 MOS_DPRINTFN("mos_reg_write_1 error, reg: %d", reg); 328 return (-1); 329 } 330 return (0); 331 } 332 333 static int 334 mos_reg_write_2(struct mos_softc *sc, int reg, int aval) 335 { 336 struct usb_device_request req; 337 usb_error_t err; 338 uWord val; 339 340 USETW(val, aval); 341 342 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 343 req.bRequest = MOS_UR_WRITEREG; 344 USETW(req.wValue, 0); 345 USETW(req.wIndex, reg); 346 USETW(req.wLength, 2); 347 348 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 349 350 if (err) { 351 MOS_DPRINTFN("mos_reg_write_2 error, reg: %d", reg); 352 return (-1); 353 } 354 return (0); 355 } 356 357 static int 358 mos_readmac(struct mos_softc *sc, u_char *mac) 359 { 360 struct usb_device_request req; 361 usb_error_t err; 362 363 req.bmRequestType = UT_READ_VENDOR_DEVICE; 364 req.bRequest = MOS_UR_READREG; 365 USETW(req.wValue, 0); 366 USETW(req.wIndex, MOS_MAC); 367 USETW(req.wLength, ETHER_ADDR_LEN); 368 369 err = uether_do_request(&sc->sc_ue, &req, mac, 1000); 370 371 if (err) { 372 return (-1); 373 } 374 return (0); 375 } 376 377 static int 378 mos_writemac(struct mos_softc *sc, uint8_t *mac) 379 { 380 struct usb_device_request req; 381 usb_error_t err; 382 383 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 384 req.bRequest = MOS_UR_WRITEREG; 385 USETW(req.wValue, 0); 386 USETW(req.wIndex, MOS_MAC); 387 USETW(req.wLength, ETHER_ADDR_LEN); 388 389 err = uether_do_request(&sc->sc_ue, &req, mac, 1000); 390 391 if (err) { 392 MOS_DPRINTFN("mos_writemac error"); 393 return (-1); 394 } 395 return (0); 396 } 397 398 static int 399 mos_write_mcast(struct mos_softc *sc, u_char *hashtbl) 400 { 401 struct usb_device_request req; 402 usb_error_t err; 403 404 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 405 req.bRequest = MOS_UR_WRITEREG; 406 USETW(req.wValue, 0); 407 USETW(req.wIndex, MOS_MCAST_TABLE); 408 USETW(req.wLength, 8); 409 410 err = uether_do_request(&sc->sc_ue, &req, hashtbl, 1000); 411 412 if (err) { 413 MOS_DPRINTFN("mos_reg_mcast error"); 414 return (-1); 415 } 416 return (0); 417 } 418 419 static int 420 mos_miibus_readreg(struct device *dev, int phy, int reg) 421 { 422 struct mos_softc *sc = device_get_softc(dev); 423 uWord val; 424 int i, res, locked; 425 426 USETW(val, 0); 427 428 locked = mtx_owned(&sc->sc_mtx); 429 if (!locked) 430 MOS_LOCK(sc); 431 432 mos_reg_write_2(sc, MOS_PHY_DATA, 0); 433 mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) | 434 MOS_PHYCTL_READ); 435 mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) | 436 MOS_PHYSTS_PENDING); 437 438 for (i = 0; i < MOS_TIMEOUT; i++) { 439 if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY) 440 break; 441 } 442 if (i == MOS_TIMEOUT) { 443 MOS_DPRINTFN("MII read timeout"); 444 } 445 res = mos_reg_read_2(sc, MOS_PHY_DATA); 446 447 if (!locked) 448 MOS_UNLOCK(sc); 449 return (res); 450 } 451 452 static int 453 mos_miibus_writereg(device_t dev, int phy, int reg, int val) 454 { 455 struct mos_softc *sc = device_get_softc(dev); 456 int i, locked; 457 458 locked = mtx_owned(&sc->sc_mtx); 459 if (!locked) 460 MOS_LOCK(sc); 461 462 mos_reg_write_2(sc, MOS_PHY_DATA, val); 463 mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) | 464 MOS_PHYCTL_WRITE); 465 mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) | 466 MOS_PHYSTS_PENDING); 467 468 for (i = 0; i < MOS_TIMEOUT; i++) { 469 if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY) 470 break; 471 } 472 if (i == MOS_TIMEOUT) 473 MOS_DPRINTFN("MII write timeout"); 474 475 if (!locked) 476 MOS_UNLOCK(sc); 477 return 0; 478 } 479 480 static void 481 mos_miibus_statchg(device_t dev) 482 { 483 struct mos_softc *sc = device_get_softc(dev); 484 struct mii_data *mii = GET_MII(sc); 485 int val, err, locked; 486 487 locked = mtx_owned(&sc->sc_mtx); 488 if (!locked) 489 MOS_LOCK(sc); 490 491 /* disable RX, TX prior to changing FDX, SPEEDSEL */ 492 val = mos_reg_read_1(sc, MOS_CTL); 493 val &= ~(MOS_CTL_TX_ENB | MOS_CTL_RX_ENB); 494 mos_reg_write_1(sc, MOS_CTL, val); 495 496 /* reset register which counts dropped frames */ 497 mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0); 498 499 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 500 val |= MOS_CTL_FDX_ENB; 501 else 502 val &= ~(MOS_CTL_FDX_ENB); 503 504 switch (IFM_SUBTYPE(mii->mii_media_active)) { 505 case IFM_100_TX: 506 val |= MOS_CTL_SPEEDSEL; 507 break; 508 case IFM_10_T: 509 val &= ~(MOS_CTL_SPEEDSEL); 510 break; 511 } 512 513 /* re-enable TX, RX */ 514 val |= (MOS_CTL_TX_ENB | MOS_CTL_RX_ENB); 515 err = mos_reg_write_1(sc, MOS_CTL, val); 516 517 if (err) 518 MOS_DPRINTFN("media change failed"); 519 520 if (!locked) 521 MOS_UNLOCK(sc); 522 } 523 524 /* 525 * Set media options. 526 */ 527 static int 528 mos_ifmedia_upd(struct ifnet *ifp) 529 { 530 struct mos_softc *sc = ifp->if_softc; 531 struct mii_data *mii = GET_MII(sc); 532 struct mii_softc *miisc; 533 534 MOS_LOCK_ASSERT(sc, MA_OWNED); 535 536 sc->mos_link = 0; 537 if (mii->mii_instance) { 538 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 539 mii_phy_reset(miisc); 540 } 541 mii_mediachg(mii); 542 return (0); 543 } 544 545 /* 546 * Report current media status. 547 */ 548 static void 549 mos_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 MOS_UNLOCK(sc); 557 558 ifmr->ifm_active = mii->mii_media_active; 559 ifmr->ifm_status = mii->mii_media_status; 560 } 561 562 static void 563 mos_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 } 583 584 585 586 static void 587 mos_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 } 628 629 static void 630 mos_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 } 647 648 static void 649 mos_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 */ 668 static int 669 mos_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 */ 689 static int 690 mos_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 } 724 error = uether_ifattach(ue); 725 if (error) { 726 device_printf(dev, "could not attach interface\n"); 727 goto detach; 728 } 729 return (0); 730 731 732 detach: 733 mos_detach(dev); 734 return (ENXIO); 735 } 736 737 738 static void 739 mos_attach_post(struct usb_ether *ue) 740 { 741 struct mos_softc *sc = uether_getsc(ue); 742 int err; 743 744 /* Read MAC address, inform the world. */ 745 err = mos_readmac(sc, ue->ue_eaddr); 746 747 if (err) 748 MOS_DPRINTFN("couldn't get MAC address"); 749 750 MOS_DPRINTFN("address: %s", ether_sprintf(ue->ue_eaddr)); 751 752 mos_chip_init(sc); 753 } 754 755 static int 756 mos_detach(device_t dev) 757 { 758 struct mos_softc *sc = device_get_softc(dev); 759 struct usb_ether *ue = &sc->sc_ue; 760 761 usbd_transfer_unsetup(sc->sc_xfer, MOS_ENDPT_MAX); 762 uether_ifdetach(ue); 763 mtx_destroy(&sc->sc_mtx); 764 765 return (0); 766 } 767 768 769 770 771 /* 772 * A frame has been uploaded: pass the resulting mbuf chain up to 773 * the higher level protocols. 774 */ 775 static void 776 mos_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 777 { 778 struct mos_softc *sc = usbd_xfer_softc(xfer); 779 struct usb_ether *ue = &sc->sc_ue; 780 struct ifnet *ifp = uether_getifp(ue); 781 782 uint8_t rxstat = 0; 783 uint32_t actlen; 784 uint16_t pktlen = 0; 785 struct usb_page_cache *pc; 786 787 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 788 pc = usbd_xfer_get_frame(xfer, 0); 789 790 switch (USB_GET_STATE(xfer)) { 791 case USB_ST_TRANSFERRED: 792 MOS_DPRINTFN("actlen : %d", actlen); 793 if (actlen <= 1) { 794 ifp->if_ierrors++; 795 goto tr_setup; 796 } 797 /* evaluate status byte at the end */ 798 usbd_copy_out(pc, actlen - sizeof(rxstat), &rxstat, 799 sizeof(rxstat)); 800 801 if (rxstat != MOS_RXSTS_VALID) { 802 MOS_DPRINTFN("erroneous frame received"); 803 if (rxstat & MOS_RXSTS_SHORT_FRAME) 804 MOS_DPRINTFN("frame size less than 64 bytes"); 805 if (rxstat & MOS_RXSTS_LARGE_FRAME) { 806 MOS_DPRINTFN("frame size larger than " 807 "1532 bytes"); 808 } 809 if (rxstat & MOS_RXSTS_CRC_ERROR) 810 MOS_DPRINTFN("CRC error"); 811 if (rxstat & MOS_RXSTS_ALIGN_ERROR) 812 MOS_DPRINTFN("alignment error"); 813 ifp->if_ierrors++; 814 goto tr_setup; 815 } 816 /* Remember the last byte was used for the status fields */ 817 pktlen = actlen - 1; 818 if (pktlen < sizeof(struct ether_header)) { 819 MOS_DPRINTFN("error: pktlen %d is smaller " 820 "than ether_header %zd", pktlen, 821 sizeof(struct ether_header)); 822 ifp->if_ierrors++; 823 goto tr_setup; 824 } 825 uether_rxbuf(ue, pc, 0, actlen); 826 /* FALLTHROUGH */ 827 case USB_ST_SETUP: 828 tr_setup: 829 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 830 usbd_transfer_submit(xfer); 831 uether_rxflush(ue); 832 return; 833 default: 834 MOS_DPRINTFN("bulk read error, %s", usbd_errstr(error)); 835 if (error != USB_ERR_CANCELLED) { 836 usbd_xfer_set_stall(xfer); 837 goto tr_setup; 838 } 839 MOS_DPRINTFN("start rx %i", usbd_xfer_max_len(xfer)); 840 return; 841 } 842 } 843 844 /* 845 * A frame was downloaded to the chip. It's safe for us to clean up 846 * the list buffers. 847 */ 848 static void 849 mos_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 850 { 851 struct mos_softc *sc = usbd_xfer_softc(xfer); 852 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 853 struct usb_page_cache *pc; 854 struct mbuf *m; 855 856 857 858 switch (USB_GET_STATE(xfer)) { 859 case USB_ST_TRANSFERRED: 860 MOS_DPRINTFN("transfer of complete"); 861 ifp->if_opackets++; 862 /* FALLTHROUGH */ 863 case USB_ST_SETUP: 864 tr_setup: 865 /* 866 * XXX: don't send anything if there is no link? 867 */ 868 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 869 if (m == NULL) 870 return; 871 872 pc = usbd_xfer_get_frame(xfer, 0); 873 usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len); 874 875 usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len); 876 877 878 /* 879 * if there's a BPF listener, bounce a copy 880 * of this frame to him: 881 */ 882 BPF_MTAP(ifp, m); 883 884 m_freem(m); 885 886 usbd_transfer_submit(xfer); 887 888 ifp->if_opackets++; 889 return; 890 default: 891 MOS_DPRINTFN("usb error on tx: %s\n", usbd_errstr(error)); 892 ifp->if_oerrors++; 893 if (error != USB_ERR_CANCELLED) { 894 usbd_xfer_set_stall(xfer); 895 goto tr_setup; 896 } 897 return; 898 } 899 } 900 901 static void 902 mos_tick(struct usb_ether *ue) 903 { 904 struct mos_softc *sc = uether_getsc(ue); 905 struct mii_data *mii = GET_MII(sc); 906 907 MOS_LOCK_ASSERT(sc, MA_OWNED); 908 909 mii_tick(mii); 910 if (!sc->mos_link && mii->mii_media_status & IFM_ACTIVE && 911 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 912 MOS_DPRINTFN("got link"); 913 sc->mos_link++; 914 mos_start(ue); 915 } 916 } 917 918 919 static void 920 mos_start(struct usb_ether *ue) 921 { 922 struct mos_softc *sc = uether_getsc(ue); 923 924 /* 925 * start the USB transfers, if not already started: 926 */ 927 usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_TX]); 928 usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_RX]); 929 usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_INTR]); 930 } 931 932 static void 933 mos_init(struct usb_ether *ue) 934 { 935 struct mos_softc *sc = uether_getsc(ue); 936 struct ifnet *ifp = uether_getifp(ue); 937 uint8_t rxmode; 938 939 MOS_LOCK_ASSERT(sc, MA_OWNED); 940 941 /* Cancel pending I/O and free all RX/TX buffers. */ 942 mos_reset(sc); 943 944 /* Write MAC address */ 945 mos_writemac(sc, IF_LLADDR(ifp)); 946 947 /* Read and set transmitter IPG values */ 948 sc->mos_ipgs[0] = mos_reg_read_1(sc, MOS_IPG0); 949 sc->mos_ipgs[1] = mos_reg_read_1(sc, MOS_IPG1); 950 mos_reg_write_1(sc, MOS_IPG0, sc->mos_ipgs[0]); 951 mos_reg_write_1(sc, MOS_IPG1, sc->mos_ipgs[1]); 952 953 /* 954 * Enable receiver and transmitter, bridge controls speed/duplex 955 * mode 956 */ 957 rxmode = mos_reg_read_1(sc, MOS_CTL); 958 rxmode |= MOS_CTL_RX_ENB | MOS_CTL_TX_ENB | MOS_CTL_BS_ENB; 959 rxmode &= ~(MOS_CTL_SLEEP); 960 961 mos_setpromisc(ue); 962 963 /* XXX: broadcast mode? */ 964 mos_reg_write_1(sc, MOS_CTL, rxmode); 965 966 /* Load the multicast filter. */ 967 mos_setmulti(ue); 968 969 ifp->if_drv_flags |= IFF_DRV_RUNNING; 970 mos_start(ue); 971 } 972 973 974 static void 975 mos_intr_callback(struct usb_xfer *xfer, usb_error_t error) 976 { 977 struct mos_softc *sc = usbd_xfer_softc(xfer); 978 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 979 struct usb_page_cache *pc; 980 uint32_t pkt; 981 int actlen; 982 983 ifp->if_oerrors++; 984 985 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 986 MOS_DPRINTFN("actlen %i", actlen); 987 988 switch (USB_GET_STATE(xfer)) { 989 case USB_ST_TRANSFERRED: 990 991 pc = usbd_xfer_get_frame(xfer, 0); 992 usbd_copy_out(pc, 0, &pkt, sizeof(pkt)); 993 /* FALLTHROUGH */ 994 case USB_ST_SETUP: 995 tr_setup: 996 return; 997 default: 998 if (error != USB_ERR_CANCELLED) { 999 usbd_xfer_set_stall(xfer); 1000 goto tr_setup; 1001 } 1002 return; 1003 } 1004 } 1005 1006 1007 /* 1008 * Stop the adapter and free any mbufs allocated to the 1009 * RX and TX lists. 1010 */ 1011 static void 1012 mos_stop(struct usb_ether *ue) 1013 { 1014 struct mos_softc *sc = uether_getsc(ue); 1015 struct ifnet *ifp = uether_getifp(ue); 1016 1017 mos_reset(sc); 1018 1019 MOS_LOCK_ASSERT(sc, MA_OWNED); 1020 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 1021 1022 /* stop all the transfers, if not already stopped */ 1023 usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_TX]); 1024 usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_RX]); 1025 usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_INTR]); 1026 1027 sc->mos_link = 0; 1028 } 1029