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 * $FreeBSD: head/sys/dev/usb/net/if_mos.c 271832 2014-09-18 21:09:22Z glebius $ 81 */ 82 83 /* 84 * Moschip MCS7730/MCS7830/MCS7832 USB to Ethernet controller 85 * The datasheet is available at the following URL: 86 * http://www.moschip.com/data/products/MCS7830/Data%20Sheet_7830.pdf 87 */ 88 89 /* 90 * The FreeBSD if_mos.c driver is based on various different sources: 91 * The vendor provided driver at the following URL: 92 * http://www.moschip.com/data/products/MCS7830/Driver_FreeBSD_7830.tar.gz 93 * 94 * Mixed together with the OpenBSD if_mos.c driver for validation and checking 95 * and the FreeBSD if_reu.c as reference for the USB Ethernet framework. 96 */ 97 98 #include <sys/stdint.h> 99 #include <sys/param.h> 100 #include <sys/queue.h> 101 #include <sys/types.h> 102 #include <sys/systm.h> 103 #include <sys/socket.h> 104 #include <sys/kernel.h> 105 #include <sys/bus.h> 106 #include <sys/module.h> 107 #include <sys/lock.h> 108 #include <sys/condvar.h> 109 #include <sys/sysctl.h> 110 #include <sys/unistd.h> 111 #include <sys/callout.h> 112 #include <sys/malloc.h> 113 #include <sys/caps.h> 114 115 #include <net/if.h> 116 #include <net/if_var.h> 117 #include <net/ifq_var.h> 118 119 #include <bus/u4b/usb.h> 120 #include <bus/u4b/usbdi.h> 121 #include <bus/u4b/usbdi_util.h> 122 #include "usbdevs.h" 123 124 #define USB_DEBUG_VAR mos_debug 125 #include <bus/u4b/usb_debug.h> 126 #include <bus/u4b/usb_process.h> 127 128 #include <bus/u4b/net/usb_ethernet.h> 129 130 //#include <bus/u4b/net/if_mosreg.h> 131 #include "if_mosreg.h" 132 133 #ifdef USB_DEBUG 134 static int mos_debug = 0; 135 136 static 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",__func__,## __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_HOST_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_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7832, MCS7832)}, 154 {USB_VPI(USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_LN030, MCS7830)}, 155 }; 156 157 static int mos_probe(device_t dev); 158 static int mos_attach(device_t dev); 159 static void mos_attach_post(struct usb_ether *ue); 160 static int mos_detach(device_t dev); 161 162 static void mos_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error); 163 static void mos_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error); 164 static void mos_intr_callback(struct usb_xfer *xfer, usb_error_t error); 165 static void mos_tick(struct usb_ether *); 166 static void mos_start(struct usb_ether *); 167 static void mos_init(struct usb_ether *); 168 static void mos_chip_init(struct mos_softc *); 169 static void mos_stop(struct usb_ether *); 170 static int mos_miibus_readreg(device_t, int, int); 171 static int mos_miibus_writereg(device_t, int, int, int); 172 static void mos_miibus_statchg(device_t); 173 static int mos_ifmedia_upd(struct ifnet *); 174 static void mos_ifmedia_sts(struct ifnet *, struct ifmediareq *); 175 static void mos_reset(struct mos_softc *sc); 176 177 static int mos_reg_read_1(struct mos_softc *, int); 178 static int mos_reg_read_2(struct mos_softc *, int); 179 static int mos_reg_write_1(struct mos_softc *, int, int); 180 static int mos_reg_write_2(struct mos_softc *, int, int); 181 static int mos_readmac(struct mos_softc *, uint8_t *); 182 static int mos_writemac(struct mos_softc *, uint8_t *); 183 static int mos_write_mcast(struct mos_softc *, u_char *); 184 185 static void mos_setmulti(struct usb_ether *); 186 static void mos_setpromisc(struct usb_ether *); 187 188 static const struct usb_config mos_config[MOS_ENDPT_MAX] = { 189 190 [MOS_ENDPT_TX] = { 191 .type = UE_BULK, 192 .endpoint = UE_ADDR_ANY, 193 .direction = UE_DIR_OUT, 194 .bufsize = (MCLBYTES + 2), 195 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 196 .callback = mos_bulk_write_callback, 197 .timeout = 10000, 198 }, 199 200 [MOS_ENDPT_RX] = { 201 .type = UE_BULK, 202 .endpoint = UE_ADDR_ANY, 203 .direction = UE_DIR_IN, 204 .bufsize = (MCLBYTES + 4 + ETHER_CRC_LEN), 205 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 206 .callback = mos_bulk_read_callback, 207 }, 208 209 [MOS_ENDPT_INTR] = { 210 .type = UE_INTERRUPT, 211 .endpoint = UE_ADDR_ANY, 212 .direction = UE_DIR_IN, 213 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 214 .bufsize = 0, 215 .callback = mos_intr_callback, 216 }, 217 }; 218 219 static device_method_t mos_methods[] = { 220 /* Device interface */ 221 DEVMETHOD(device_probe, mos_probe), 222 DEVMETHOD(device_attach, mos_attach), 223 DEVMETHOD(device_detach, mos_detach), 224 225 /* MII interface */ 226 DEVMETHOD(miibus_readreg, mos_miibus_readreg), 227 DEVMETHOD(miibus_writereg, mos_miibus_writereg), 228 DEVMETHOD(miibus_statchg, mos_miibus_statchg), 229 230 DEVMETHOD_END 231 }; 232 233 static driver_t mos_driver = { 234 .name = "mos", 235 .methods = mos_methods, 236 .size = sizeof(struct mos_softc) 237 }; 238 239 static devclass_t mos_devclass; 240 241 DRIVER_MODULE(mos, uhub, mos_driver, mos_devclass, NULL, NULL); 242 DRIVER_MODULE(miibus, mos, miibus_driver, miibus_devclass, NULL, NULL); 243 MODULE_DEPEND(mos, uether, 1, 1, 1); 244 MODULE_DEPEND(mos, usb, 1, 1, 1); 245 MODULE_DEPEND(mos, ether, 1, 1, 1); 246 MODULE_DEPEND(mos, miibus, 1, 1, 1); 247 248 static const struct usb_ether_methods mos_ue_methods = { 249 .ue_attach_post = mos_attach_post, 250 .ue_start = mos_start, 251 .ue_init = mos_init, 252 .ue_stop = mos_stop, 253 .ue_tick = mos_tick, 254 .ue_setmulti = mos_setmulti, 255 .ue_setpromisc = mos_setpromisc, 256 .ue_mii_upd = mos_ifmedia_upd, 257 .ue_mii_sts = mos_ifmedia_sts, 258 }; 259 260 261 static int 262 mos_reg_read_1(struct mos_softc *sc, int reg) 263 { 264 struct usb_device_request req; 265 usb_error_t err; 266 uByte val = 0; 267 268 req.bmRequestType = UT_READ_VENDOR_DEVICE; 269 req.bRequest = MOS_UR_READREG; 270 USETW(req.wValue, 0); 271 USETW(req.wIndex, reg); 272 USETW(req.wLength, 1); 273 274 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 275 276 if (err) { 277 MOS_DPRINTFN("mos_reg_read_1 error, reg: %d\n", reg); 278 return (-1); 279 } 280 return (val); 281 } 282 283 static int 284 mos_reg_read_2(struct mos_softc *sc, int reg) 285 { 286 struct usb_device_request req; 287 usb_error_t err; 288 uWord val; 289 290 USETW(val, 0); 291 292 req.bmRequestType = UT_READ_VENDOR_DEVICE; 293 req.bRequest = MOS_UR_READREG; 294 USETW(req.wValue, 0); 295 USETW(req.wIndex, reg); 296 USETW(req.wLength, 2); 297 298 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 299 300 if (err) { 301 MOS_DPRINTFN("mos_reg_read_2 error, reg: %d", reg); 302 return (-1); 303 } 304 return (UGETW(val)); 305 } 306 307 static int 308 mos_reg_write_1(struct mos_softc *sc, int reg, int aval) 309 { 310 struct usb_device_request req; 311 usb_error_t err; 312 uByte val; 313 val = aval; 314 315 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 316 req.bRequest = MOS_UR_WRITEREG; 317 USETW(req.wValue, 0); 318 USETW(req.wIndex, reg); 319 USETW(req.wLength, 1); 320 321 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 322 323 if (err) { 324 MOS_DPRINTFN("mos_reg_write_1 error, reg: %d", reg); 325 return (-1); 326 } 327 return (0); 328 } 329 330 static int 331 mos_reg_write_2(struct mos_softc *sc, int reg, int aval) 332 { 333 struct usb_device_request req; 334 usb_error_t err; 335 uWord val; 336 337 USETW(val, aval); 338 339 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 340 req.bRequest = MOS_UR_WRITEREG; 341 USETW(req.wValue, 0); 342 USETW(req.wIndex, reg); 343 USETW(req.wLength, 2); 344 345 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 346 347 if (err) { 348 MOS_DPRINTFN("mos_reg_write_2 error, reg: %d", reg); 349 return (-1); 350 } 351 return (0); 352 } 353 354 static int 355 mos_readmac(struct mos_softc *sc, u_char *mac) 356 { 357 struct usb_device_request req; 358 usb_error_t err; 359 360 req.bmRequestType = UT_READ_VENDOR_DEVICE; 361 req.bRequest = MOS_UR_READREG; 362 USETW(req.wValue, 0); 363 USETW(req.wIndex, MOS_MAC); 364 USETW(req.wLength, ETHER_ADDR_LEN); 365 366 err = uether_do_request(&sc->sc_ue, &req, mac, 1000); 367 368 if (err) { 369 return (-1); 370 } 371 return (0); 372 } 373 374 static int 375 mos_writemac(struct mos_softc *sc, uint8_t *mac) 376 { 377 struct usb_device_request req; 378 usb_error_t err; 379 380 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 381 req.bRequest = MOS_UR_WRITEREG; 382 USETW(req.wValue, 0); 383 USETW(req.wIndex, MOS_MAC); 384 USETW(req.wLength, ETHER_ADDR_LEN); 385 386 err = uether_do_request(&sc->sc_ue, &req, mac, 1000); 387 388 if (err) { 389 MOS_DPRINTFN("mos_writemac error"); 390 return (-1); 391 } 392 return (0); 393 } 394 395 static int 396 mos_write_mcast(struct mos_softc *sc, u_char *hashtbl) 397 { 398 struct usb_device_request req; 399 usb_error_t err; 400 401 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 402 req.bRequest = MOS_UR_WRITEREG; 403 USETW(req.wValue, 0); 404 USETW(req.wIndex, MOS_MCAST_TABLE); 405 USETW(req.wLength, 8); 406 407 err = uether_do_request(&sc->sc_ue, &req, hashtbl, 1000); 408 409 if (err) { 410 MOS_DPRINTFN("mos_reg_mcast error"); 411 return (-1); 412 } 413 return (0); 414 } 415 416 static int 417 mos_miibus_readreg(device_t dev, int phy, int reg) 418 { 419 struct mos_softc *sc = device_get_softc(dev); 420 uWord val; 421 int i, res, locked; 422 423 USETW(val, 0); 424 425 locked = lockowned(&sc->sc_lock); 426 if (!locked) 427 MOS_LOCK(sc); 428 429 mos_reg_write_2(sc, MOS_PHY_DATA, 0); 430 mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) | 431 MOS_PHYCTL_READ); 432 mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) | 433 MOS_PHYSTS_PENDING); 434 435 for (i = 0; i < MOS_TIMEOUT; i++) { 436 if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY) 437 break; 438 } 439 if (i == MOS_TIMEOUT) { 440 MOS_DPRINTFN("MII read timeout"); 441 } 442 res = mos_reg_read_2(sc, MOS_PHY_DATA); 443 444 if (!locked) 445 MOS_UNLOCK(sc); 446 return (res); 447 } 448 449 static int 450 mos_miibus_writereg(device_t dev, int phy, int reg, int val) 451 { 452 struct mos_softc *sc = device_get_softc(dev); 453 int i, locked; 454 455 locked = lockowned(&sc->sc_lock); 456 if (!locked) 457 MOS_LOCK(sc); 458 459 mos_reg_write_2(sc, MOS_PHY_DATA, val); 460 mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) | 461 MOS_PHYCTL_WRITE); 462 mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) | 463 MOS_PHYSTS_PENDING); 464 465 for (i = 0; i < MOS_TIMEOUT; i++) { 466 if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY) 467 break; 468 } 469 if (i == MOS_TIMEOUT) 470 MOS_DPRINTFN("MII write timeout"); 471 472 if (!locked) 473 MOS_UNLOCK(sc); 474 return 0; 475 } 476 477 static void 478 mos_miibus_statchg(device_t dev) 479 { 480 struct mos_softc *sc = device_get_softc(dev); 481 struct mii_data *mii = GET_MII(sc); 482 int val, err, locked; 483 484 locked = lockowned(&sc->sc_lock); 485 if (!locked) 486 MOS_LOCK(sc); 487 488 /* disable RX, TX prior to changing FDX, SPEEDSEL */ 489 val = mos_reg_read_1(sc, MOS_CTL); 490 val &= ~(MOS_CTL_TX_ENB | MOS_CTL_RX_ENB); 491 mos_reg_write_1(sc, MOS_CTL, val); 492 493 /* reset register which counts dropped frames */ 494 mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0); 495 496 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 497 val |= MOS_CTL_FDX_ENB; 498 else 499 val &= ~(MOS_CTL_FDX_ENB); 500 501 switch (IFM_SUBTYPE(mii->mii_media_active)) { 502 case IFM_100_TX: 503 val |= MOS_CTL_SPEEDSEL; 504 break; 505 case IFM_10_T: 506 val &= ~(MOS_CTL_SPEEDSEL); 507 break; 508 } 509 510 /* re-enable TX, RX */ 511 val |= (MOS_CTL_TX_ENB | MOS_CTL_RX_ENB); 512 err = mos_reg_write_1(sc, MOS_CTL, val); 513 514 if (err) 515 MOS_DPRINTFN("media change failed"); 516 517 if (!locked) 518 MOS_UNLOCK(sc); 519 } 520 521 /* 522 * Set media options. 523 */ 524 static int 525 mos_ifmedia_upd(struct ifnet *ifp) 526 { 527 struct mos_softc *sc = ifp->if_softc; 528 struct mii_data *mii = GET_MII(sc); 529 struct mii_softc *miisc; 530 int error; 531 532 MOS_LOCK_ASSERT(sc); 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 error = mii_mediachg(mii); 540 return (error); 541 } 542 543 /* 544 * Report current media status. 545 */ 546 static void 547 mos_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); 554 555 ifmr->ifm_active = mii->mii_media_active; 556 ifmr->ifm_status = mii->mii_media_status; 557 MOS_UNLOCK(sc); 558 } 559 560 static void 561 mos_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); 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 } 581 582 583 584 static void 585 mos_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); 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 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 605 if (ifma->ifma_addr->sa_family != AF_LINK) { 606 allmulti = 1; 607 continue; 608 } 609 h = ether_crc32_be(LLADDR((struct sockaddr_dl *) 610 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; 611 setbit(hashtbl, h); 612 } 613 614 /* now program new ones */ 615 if (allmulti == 1) { 616 rxmode |= MOS_CTL_ALLMULTI; 617 mos_reg_write_1(sc, MOS_CTL, rxmode); 618 } else { 619 rxmode &= ~MOS_CTL_ALLMULTI; 620 mos_write_mcast(sc, (void *)&hashtbl); 621 mos_reg_write_1(sc, MOS_CTL, rxmode); 622 } 623 } 624 625 static void 626 mos_reset(struct mos_softc *sc) 627 { 628 uint8_t ctl; 629 630 ctl = mos_reg_read_1(sc, MOS_CTL); 631 ctl &= ~(MOS_CTL_RX_PROMISC | MOS_CTL_ALLMULTI | MOS_CTL_TX_ENB | 632 MOS_CTL_RX_ENB); 633 /* Disable RX, TX, promiscuous and allmulticast mode */ 634 mos_reg_write_1(sc, MOS_CTL, ctl); 635 636 /* Reset frame drop counter register to zero */ 637 mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0); 638 639 /* Wait a little while for the chip to get its brains in order. */ 640 usb_pause_mtx(&sc->sc_lock, hz / 128); 641 return; 642 } 643 644 static void 645 mos_chip_init(struct mos_softc *sc) 646 { 647 int i; 648 649 /* 650 * Rev.C devices have a pause threshold register which needs to be set 651 * at startup. 652 */ 653 if (mos_reg_read_1(sc, MOS_PAUSE_TRHD) != -1) { 654 for (i = 0; i < MOS_PAUSE_REWRITES; i++) 655 mos_reg_write_1(sc, MOS_PAUSE_TRHD, 0); 656 } 657 sc->mos_phyaddrs[0] = 1; 658 sc->mos_phyaddrs[1] = 0xFF; 659 } 660 661 /* 662 * Probe for a MCS7x30 chip. 663 */ 664 static int 665 mos_probe(device_t dev) 666 { 667 struct usb_attach_arg *uaa = device_get_ivars(dev); 668 int retval; 669 670 if (uaa->usb_mode != USB_MODE_HOST) 671 return (ENXIO); 672 if (uaa->info.bConfigIndex != MOS_CONFIG_IDX) 673 return (ENXIO); 674 if (uaa->info.bIfaceIndex != MOS_IFACE_IDX) 675 return (ENXIO); 676 677 retval = usbd_lookup_id_by_uaa(mos_devs, sizeof(mos_devs), uaa); 678 return (retval); 679 } 680 681 /* 682 * Attach the interface. Allocate softc structures, do ifmedia 683 * setup and ethernet/BPF attach. 684 */ 685 static int 686 mos_attach(device_t dev) 687 { 688 struct usb_attach_arg *uaa = device_get_ivars(dev); 689 struct mos_softc *sc = device_get_softc(dev); 690 struct usb_ether *ue = &sc->sc_ue; 691 uint8_t iface_index; 692 int error; 693 694 sc->mos_flags = USB_GET_DRIVER_INFO(uaa); 695 696 device_set_usb_desc(dev); 697 lockinit(&sc->sc_lock, device_get_nameunit(dev), 0, LK_CANRECURSE); 698 699 iface_index = MOS_IFACE_IDX; 700 error = usbd_transfer_setup(uaa->device, &iface_index, 701 sc->sc_xfer, mos_config, MOS_ENDPT_MAX, 702 sc, &sc->sc_lock); 703 704 if (error) { 705 device_printf(dev, "allocating USB transfers failed\n"); 706 goto detach; 707 } 708 ue->ue_sc = sc; 709 ue->ue_dev = dev; 710 ue->ue_udev = uaa->device; 711 ue->ue_lock = &sc->sc_lock; 712 ue->ue_methods = &mos_ue_methods; 713 714 715 if (sc->mos_flags & MCS7730) { 716 MOS_DPRINTFN("model: MCS7730"); 717 } else if (sc->mos_flags & MCS7830) { 718 MOS_DPRINTFN("model: MCS7830"); 719 } else if (sc->mos_flags & MCS7832) { 720 MOS_DPRINTFN("model: MCS7832"); 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); 728 729 730 detach: 731 mos_detach(dev); 732 return (ENXIO); 733 } 734 735 736 static void 737 mos_attach_post(struct usb_ether *ue) 738 { 739 struct mos_softc *sc = uether_getsc(ue); 740 int err; 741 #ifdef USB_DEBUG 742 char ethstr[ETHER_ADDRSTRLEN + 1]; 743 #endif 744 745 /* Read MAC address, inform the world. */ 746 err = mos_readmac(sc, ue->ue_eaddr); 747 748 if (err) 749 MOS_DPRINTFN("couldn't get MAC address"); 750 751 MOS_DPRINTFN("address: %s", kether_ntoa(ue->ue_eaddr, ethstr)); 752 753 mos_chip_init(sc); 754 } 755 756 static int 757 mos_detach(device_t dev) 758 { 759 struct mos_softc *sc = device_get_softc(dev); 760 struct usb_ether *ue = &sc->sc_ue; 761 762 usbd_transfer_unsetup(sc->sc_xfer, MOS_ENDPT_MAX); 763 uether_ifdetach(ue); 764 lockuninit(&sc->sc_lock); 765 766 return (0); 767 } 768 769 770 771 772 /* 773 * A frame has been uploaded: pass the resulting mbuf chain up to 774 * the higher level protocols. 775 */ 776 static void 777 mos_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 778 { 779 struct mos_softc *sc = usbd_xfer_softc(xfer); 780 struct usb_ether *ue = &sc->sc_ue; 781 struct ifnet *ifp = uether_getifp(ue); 782 783 uint8_t rxstat = 0; 784 uint32_t actlen; 785 uint16_t pktlen = 0; 786 struct usb_page_cache *pc; 787 788 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 789 pc = usbd_xfer_get_frame(xfer, 0); 790 791 switch (USB_GET_STATE(xfer)) { 792 case USB_ST_TRANSFERRED: 793 MOS_DPRINTFN("actlen : %d", actlen); 794 if (actlen <= 1) { 795 IFNET_STAT_INC(ifp, ierrors, 1); 796 goto tr_setup; 797 } 798 /* evaluate status byte at the end */ 799 usbd_copy_out(pc, actlen - sizeof(rxstat), &rxstat, 800 sizeof(rxstat)); 801 802 if (rxstat != MOS_RXSTS_VALID) { 803 MOS_DPRINTFN("erroneous frame received"); 804 if (rxstat & MOS_RXSTS_SHORT_FRAME) 805 MOS_DPRINTFN("frame size less than 64 bytes"); 806 if (rxstat & MOS_RXSTS_LARGE_FRAME) { 807 MOS_DPRINTFN("frame size larger than " 808 "1532 bytes"); 809 } 810 if (rxstat & MOS_RXSTS_CRC_ERROR) 811 MOS_DPRINTFN("CRC error"); 812 if (rxstat & MOS_RXSTS_ALIGN_ERROR) 813 MOS_DPRINTFN("alignment error"); 814 IFNET_STAT_INC(ifp, ierrors, 1); 815 goto tr_setup; 816 } 817 /* Remember the last byte was used for the status fields */ 818 pktlen = actlen - 1; 819 if (pktlen < sizeof(struct ether_header)) { 820 MOS_DPRINTFN("error: pktlen %d is smaller " 821 "than ether_header %zd", pktlen, 822 sizeof(struct ether_header)); 823 IFNET_STAT_INC(ifp, ierrors, 1); 824 goto tr_setup; 825 } 826 uether_rxbuf(ue, pc, 0, actlen); 827 /* FALLTHROUGH */ 828 case USB_ST_SETUP: 829 tr_setup: 830 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 831 usbd_transfer_submit(xfer); 832 uether_rxflush(ue); 833 return; 834 default: 835 MOS_DPRINTFN("bulk read error, %s", usbd_errstr(error)); 836 if (error != USB_ERR_CANCELLED) { 837 usbd_xfer_set_stall(xfer); 838 goto tr_setup; 839 } 840 MOS_DPRINTFN("start rx %i", usbd_xfer_max_len(xfer)); 841 return; 842 } 843 } 844 845 /* 846 * A frame was downloaded to the chip. It's safe for us to clean up 847 * the list buffers. 848 */ 849 static void 850 mos_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 851 { 852 struct mos_softc *sc = usbd_xfer_softc(xfer); 853 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 854 struct usb_page_cache *pc; 855 struct mbuf *m; 856 857 858 859 switch (USB_GET_STATE(xfer)) { 860 case USB_ST_TRANSFERRED: 861 MOS_DPRINTFN("transfer of complete"); 862 IFNET_STAT_INC(ifp, opackets, 1); 863 /* FALLTHROUGH */ 864 case USB_ST_SETUP: 865 tr_setup: 866 /* 867 * XXX: don't send anything if there is no link? 868 */ 869 m = ifq_dequeue(&ifp->if_snd); 870 if (m == NULL) 871 return; 872 873 pc = usbd_xfer_get_frame(xfer, 0); 874 usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len); 875 876 usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len); 877 878 879 /* 880 * if there's a BPF listener, bounce a copy 881 * of this frame to him: 882 */ 883 BPF_MTAP(ifp, m); 884 885 m_freem(m); 886 887 usbd_transfer_submit(xfer); 888 889 IFNET_STAT_INC(ifp, opackets, 1); 890 return; 891 default: 892 MOS_DPRINTFN("usb error on tx: %s\n", usbd_errstr(error)); 893 IFNET_STAT_INC(ifp, oerrors, 1); 894 if (error != USB_ERR_CANCELLED) { 895 usbd_xfer_set_stall(xfer); 896 goto tr_setup; 897 } 898 return; 899 } 900 } 901 902 static void 903 mos_tick(struct usb_ether *ue) 904 { 905 struct mos_softc *sc = uether_getsc(ue); 906 struct mii_data *mii = GET_MII(sc); 907 908 MOS_LOCK_ASSERT(sc); 909 910 mii_tick(mii); 911 if (!sc->mos_link && mii->mii_media_status & IFM_ACTIVE && 912 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 913 MOS_DPRINTFN("got link"); 914 sc->mos_link++; 915 mos_start(ue); 916 } 917 } 918 919 920 static void 921 mos_start(struct usb_ether *ue) 922 { 923 struct mos_softc *sc = uether_getsc(ue); 924 925 /* 926 * start the USB transfers, if not already started: 927 */ 928 usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_TX]); 929 usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_RX]); 930 usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_INTR]); 931 } 932 933 static void 934 mos_init(struct usb_ether *ue) 935 { 936 struct mos_softc *sc = uether_getsc(ue); 937 struct ifnet *ifp = uether_getifp(ue); 938 uint8_t rxmode; 939 940 MOS_LOCK_ASSERT(sc); 941 942 /* Cancel pending I/O and free all RX/TX buffers. */ 943 mos_reset(sc); 944 945 /* Write MAC address */ 946 mos_writemac(sc, IF_LLADDR(ifp)); 947 948 /* Read and set transmitter IPG values */ 949 sc->mos_ipgs[0] = mos_reg_read_1(sc, MOS_IPG0); 950 sc->mos_ipgs[1] = mos_reg_read_1(sc, MOS_IPG1); 951 mos_reg_write_1(sc, MOS_IPG0, sc->mos_ipgs[0]); 952 mos_reg_write_1(sc, MOS_IPG1, sc->mos_ipgs[1]); 953 954 /* 955 * Enable receiver and transmitter, bridge controls speed/duplex 956 * mode 957 */ 958 rxmode = mos_reg_read_1(sc, MOS_CTL); 959 rxmode |= MOS_CTL_RX_ENB | MOS_CTL_TX_ENB | MOS_CTL_BS_ENB; 960 rxmode &= ~(MOS_CTL_SLEEP); 961 962 mos_setpromisc(ue); 963 964 /* XXX: broadcast mode? */ 965 mos_reg_write_1(sc, MOS_CTL, rxmode); 966 967 /* Load the multicast filter. */ 968 mos_setmulti(ue); 969 970 ifp->if_flags |= IFF_RUNNING; 971 mos_start(ue); 972 } 973 974 975 static void 976 mos_intr_callback(struct usb_xfer *xfer, usb_error_t error) 977 { 978 struct mos_softc *sc = usbd_xfer_softc(xfer); 979 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 980 struct usb_page_cache *pc; 981 uint32_t pkt; 982 int actlen; 983 984 IFNET_STAT_INC(ifp, oerrors, 1); 985 986 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 987 MOS_DPRINTFN("actlen %i", actlen); 988 989 switch (USB_GET_STATE(xfer)) { 990 case USB_ST_TRANSFERRED: 991 992 pc = usbd_xfer_get_frame(xfer, 0); 993 usbd_copy_out(pc, 0, &pkt, sizeof(pkt)); 994 /* FALLTHROUGH */ 995 case USB_ST_SETUP: 996 tr_setup: 997 return; 998 default: 999 if (error != USB_ERR_CANCELLED) { 1000 usbd_xfer_set_stall(xfer); 1001 goto tr_setup; 1002 } 1003 return; 1004 } 1005 } 1006 1007 1008 /* 1009 * Stop the adapter and free any mbufs allocated to the 1010 * RX and TX lists. 1011 */ 1012 static void 1013 mos_stop(struct usb_ether *ue) 1014 { 1015 struct mos_softc *sc = uether_getsc(ue); 1016 struct ifnet *ifp = uether_getifp(ue); 1017 1018 mos_reset(sc); 1019 1020 MOS_LOCK_ASSERT(sc); 1021 ifp->if_flags &= ~IFF_RUNNING; 1022 1023 /* stop all the transfers, if not already stopped */ 1024 usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_TX]); 1025 usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_RX]); 1026 usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_INTR]); 1027 1028 sc->mos_link = 0; 1029 } 1030