1 /*- 2 * Copyright (c) 2001-2003, Shunsuke Akiyama <akiyama@FreeBSD.org>. 3 * Copyright (c) 1997, 1998, 1999, 2000 Bill Paul <wpaul@ee.columbia.edu>. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 /*- 28 * SPDX-License-Identifier: BSD-4-Clause AND BSD-2-Clause-FreeBSD 29 * 30 * Copyright (c) 1997, 1998, 1999, 2000 31 * Bill Paul <wpaul@ee.columbia.edu>. All rights reserved. 32 * 33 * Redistribution and use in source and binary forms, with or without 34 * modification, are permitted provided that the following conditions 35 * are met: 36 * 1. Redistributions of source code must retain the above copyright 37 * notice, this list of conditions and the following disclaimer. 38 * 2. Redistributions in binary form must reproduce the above copyright 39 * notice, this list of conditions and the following disclaimer in the 40 * documentation and/or other materials provided with the distribution. 41 * 3. All advertising materials mentioning features or use of this software 42 * must display the following acknowledgement: 43 * This product includes software developed by Bill Paul. 44 * 4. Neither the name of the author nor the names of any co-contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 52 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 53 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 54 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 55 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 56 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 57 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 58 * THE POSSIBILITY OF SUCH DAMAGE. 59 */ 60 61 #include <sys/cdefs.h> 62 __FBSDID("$FreeBSD$"); 63 64 /* 65 * RealTek RTL8150 USB to fast ethernet controller driver. 66 * Datasheet is available from 67 * ftp://ftp.realtek.com.tw/lancard/data_sheet/8150/. 68 */ 69 70 #include <sys/stdint.h> 71 #include <sys/stddef.h> 72 #include <sys/param.h> 73 #include <sys/queue.h> 74 #include <sys/types.h> 75 #include <sys/systm.h> 76 #include <sys/socket.h> 77 #include <sys/kernel.h> 78 #include <sys/bus.h> 79 #include <sys/module.h> 80 #include <sys/lock.h> 81 #include <sys/mutex.h> 82 #include <sys/condvar.h> 83 #include <sys/sysctl.h> 84 #include <sys/sx.h> 85 #include <sys/unistd.h> 86 #include <sys/callout.h> 87 #include <sys/malloc.h> 88 #include <sys/priv.h> 89 90 #include <net/if.h> 91 #include <net/if_var.h> 92 #include <net/if_media.h> 93 94 #include <dev/mii/mii.h> 95 #include <dev/mii/miivar.h> 96 97 #include <dev/usb/usb.h> 98 #include <dev/usb/usbdi.h> 99 #include <dev/usb/usbdi_util.h> 100 #include "usbdevs.h" 101 102 #define USB_DEBUG_VAR rue_debug 103 #include <dev/usb/usb_debug.h> 104 #include <dev/usb/usb_process.h> 105 106 #include <dev/usb/net/usb_ethernet.h> 107 #include <dev/usb/net/if_ruereg.h> 108 109 #include "miibus_if.h" 110 111 #ifdef USB_DEBUG 112 static int rue_debug = 0; 113 114 static SYSCTL_NODE(_hw_usb, OID_AUTO, rue, CTLFLAG_RW, 0, "USB rue"); 115 SYSCTL_INT(_hw_usb_rue, OID_AUTO, debug, CTLFLAG_RWTUN, 116 &rue_debug, 0, "Debug level"); 117 #endif 118 119 /* 120 * Various supported device vendors/products. 121 */ 122 123 static const STRUCT_USB_HOST_ID rue_devs[] = { 124 {USB_VPI(USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUAKTX, 0)}, 125 {USB_VPI(USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_USBKR100, 0)}, 126 {USB_VPI(USB_VENDOR_OQO, USB_PRODUCT_OQO_ETHER01, 0)}, 127 }; 128 129 /* prototypes */ 130 131 static device_probe_t rue_probe; 132 static device_attach_t rue_attach; 133 static device_detach_t rue_detach; 134 135 static miibus_readreg_t rue_miibus_readreg; 136 static miibus_writereg_t rue_miibus_writereg; 137 static miibus_statchg_t rue_miibus_statchg; 138 139 static usb_callback_t rue_intr_callback; 140 static usb_callback_t rue_bulk_read_callback; 141 static usb_callback_t rue_bulk_write_callback; 142 143 static uether_fn_t rue_attach_post; 144 static uether_fn_t rue_init; 145 static uether_fn_t rue_stop; 146 static uether_fn_t rue_start; 147 static uether_fn_t rue_tick; 148 static uether_fn_t rue_setmulti; 149 static uether_fn_t rue_setpromisc; 150 151 static int rue_read_mem(struct rue_softc *, uint16_t, void *, int); 152 static int rue_write_mem(struct rue_softc *, uint16_t, void *, int); 153 static uint8_t rue_csr_read_1(struct rue_softc *, uint16_t); 154 static uint16_t rue_csr_read_2(struct rue_softc *, uint16_t); 155 static int rue_csr_write_1(struct rue_softc *, uint16_t, uint8_t); 156 static int rue_csr_write_2(struct rue_softc *, uint16_t, uint16_t); 157 static int rue_csr_write_4(struct rue_softc *, int, uint32_t); 158 159 static void rue_reset(struct rue_softc *); 160 static int rue_ifmedia_upd(struct ifnet *); 161 static void rue_ifmedia_sts(struct ifnet *, struct ifmediareq *); 162 163 static const struct usb_config rue_config[RUE_N_TRANSFER] = { 164 165 [RUE_BULK_DT_WR] = { 166 .type = UE_BULK, 167 .endpoint = UE_ADDR_ANY, 168 .direction = UE_DIR_OUT, 169 .bufsize = MCLBYTES, 170 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 171 .callback = rue_bulk_write_callback, 172 .timeout = 10000, /* 10 seconds */ 173 }, 174 175 [RUE_BULK_DT_RD] = { 176 .type = UE_BULK, 177 .endpoint = UE_ADDR_ANY, 178 .direction = UE_DIR_IN, 179 .bufsize = (MCLBYTES + 4), 180 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 181 .callback = rue_bulk_read_callback, 182 .timeout = 0, /* no timeout */ 183 }, 184 185 [RUE_INTR_DT_RD] = { 186 .type = UE_INTERRUPT, 187 .endpoint = UE_ADDR_ANY, 188 .direction = UE_DIR_IN, 189 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 190 .bufsize = 0, /* use wMaxPacketSize */ 191 .callback = rue_intr_callback, 192 }, 193 }; 194 195 static device_method_t rue_methods[] = { 196 /* Device interface */ 197 DEVMETHOD(device_probe, rue_probe), 198 DEVMETHOD(device_attach, rue_attach), 199 DEVMETHOD(device_detach, rue_detach), 200 201 /* MII interface */ 202 DEVMETHOD(miibus_readreg, rue_miibus_readreg), 203 DEVMETHOD(miibus_writereg, rue_miibus_writereg), 204 DEVMETHOD(miibus_statchg, rue_miibus_statchg), 205 206 DEVMETHOD_END 207 }; 208 209 static driver_t rue_driver = { 210 .name = "rue", 211 .methods = rue_methods, 212 .size = sizeof(struct rue_softc), 213 }; 214 215 static devclass_t rue_devclass; 216 217 DRIVER_MODULE_ORDERED(rue, uhub, rue_driver, rue_devclass, NULL, NULL, 218 SI_ORDER_ANY); 219 DRIVER_MODULE(miibus, rue, miibus_driver, miibus_devclass, NULL, NULL); 220 MODULE_DEPEND(rue, uether, 1, 1, 1); 221 MODULE_DEPEND(rue, usb, 1, 1, 1); 222 MODULE_DEPEND(rue, ether, 1, 1, 1); 223 MODULE_DEPEND(rue, miibus, 1, 1, 1); 224 MODULE_VERSION(rue, 1); 225 USB_PNP_HOST_INFO(rue_devs); 226 227 static const struct usb_ether_methods rue_ue_methods = { 228 .ue_attach_post = rue_attach_post, 229 .ue_start = rue_start, 230 .ue_init = rue_init, 231 .ue_stop = rue_stop, 232 .ue_tick = rue_tick, 233 .ue_setmulti = rue_setmulti, 234 .ue_setpromisc = rue_setpromisc, 235 .ue_mii_upd = rue_ifmedia_upd, 236 .ue_mii_sts = rue_ifmedia_sts, 237 }; 238 239 #define RUE_SETBIT(sc, reg, x) \ 240 rue_csr_write_1(sc, reg, rue_csr_read_1(sc, reg) | (x)) 241 242 #define RUE_CLRBIT(sc, reg, x) \ 243 rue_csr_write_1(sc, reg, rue_csr_read_1(sc, reg) & ~(x)) 244 245 static int 246 rue_read_mem(struct rue_softc *sc, uint16_t addr, void *buf, int len) 247 { 248 struct usb_device_request req; 249 250 req.bmRequestType = UT_READ_VENDOR_DEVICE; 251 req.bRequest = UR_SET_ADDRESS; 252 USETW(req.wValue, addr); 253 USETW(req.wIndex, 0); 254 USETW(req.wLength, len); 255 256 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 257 } 258 259 static int 260 rue_write_mem(struct rue_softc *sc, uint16_t addr, void *buf, int len) 261 { 262 struct usb_device_request req; 263 264 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 265 req.bRequest = UR_SET_ADDRESS; 266 USETW(req.wValue, addr); 267 USETW(req.wIndex, 0); 268 USETW(req.wLength, len); 269 270 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 271 } 272 273 static uint8_t 274 rue_csr_read_1(struct rue_softc *sc, uint16_t reg) 275 { 276 uint8_t val; 277 278 rue_read_mem(sc, reg, &val, 1); 279 return (val); 280 } 281 282 static uint16_t 283 rue_csr_read_2(struct rue_softc *sc, uint16_t reg) 284 { 285 uint8_t val[2]; 286 287 rue_read_mem(sc, reg, &val, 2); 288 return (UGETW(val)); 289 } 290 291 static int 292 rue_csr_write_1(struct rue_softc *sc, uint16_t reg, uint8_t val) 293 { 294 return (rue_write_mem(sc, reg, &val, 1)); 295 } 296 297 static int 298 rue_csr_write_2(struct rue_softc *sc, uint16_t reg, uint16_t val) 299 { 300 uint8_t temp[2]; 301 302 USETW(temp, val); 303 return (rue_write_mem(sc, reg, &temp, 2)); 304 } 305 306 static int 307 rue_csr_write_4(struct rue_softc *sc, int reg, uint32_t val) 308 { 309 uint8_t temp[4]; 310 311 USETDW(temp, val); 312 return (rue_write_mem(sc, reg, &temp, 4)); 313 } 314 315 static int 316 rue_miibus_readreg(device_t dev, int phy, int reg) 317 { 318 struct rue_softc *sc = device_get_softc(dev); 319 uint16_t rval; 320 uint16_t ruereg; 321 int locked; 322 323 if (phy != 0) /* RTL8150 supports PHY == 0, only */ 324 return (0); 325 326 locked = mtx_owned(&sc->sc_mtx); 327 if (!locked) 328 RUE_LOCK(sc); 329 330 switch (reg) { 331 case MII_BMCR: 332 ruereg = RUE_BMCR; 333 break; 334 case MII_BMSR: 335 ruereg = RUE_BMSR; 336 break; 337 case MII_ANAR: 338 ruereg = RUE_ANAR; 339 break; 340 case MII_ANER: 341 ruereg = RUE_AER; 342 break; 343 case MII_ANLPAR: 344 ruereg = RUE_ANLP; 345 break; 346 case MII_PHYIDR1: 347 case MII_PHYIDR2: 348 rval = 0; 349 goto done; 350 default: 351 if (RUE_REG_MIN <= reg && reg <= RUE_REG_MAX) { 352 rval = rue_csr_read_1(sc, reg); 353 goto done; 354 } 355 device_printf(sc->sc_ue.ue_dev, "bad phy register\n"); 356 rval = 0; 357 goto done; 358 } 359 360 rval = rue_csr_read_2(sc, ruereg); 361 done: 362 if (!locked) 363 RUE_UNLOCK(sc); 364 return (rval); 365 } 366 367 static int 368 rue_miibus_writereg(device_t dev, int phy, int reg, int data) 369 { 370 struct rue_softc *sc = device_get_softc(dev); 371 uint16_t ruereg; 372 int locked; 373 374 if (phy != 0) /* RTL8150 supports PHY == 0, only */ 375 return (0); 376 377 locked = mtx_owned(&sc->sc_mtx); 378 if (!locked) 379 RUE_LOCK(sc); 380 381 switch (reg) { 382 case MII_BMCR: 383 ruereg = RUE_BMCR; 384 break; 385 case MII_BMSR: 386 ruereg = RUE_BMSR; 387 break; 388 case MII_ANAR: 389 ruereg = RUE_ANAR; 390 break; 391 case MII_ANER: 392 ruereg = RUE_AER; 393 break; 394 case MII_ANLPAR: 395 ruereg = RUE_ANLP; 396 break; 397 case MII_PHYIDR1: 398 case MII_PHYIDR2: 399 goto done; 400 default: 401 if (RUE_REG_MIN <= reg && reg <= RUE_REG_MAX) { 402 rue_csr_write_1(sc, reg, data); 403 goto done; 404 } 405 device_printf(sc->sc_ue.ue_dev, " bad phy register\n"); 406 goto done; 407 } 408 rue_csr_write_2(sc, ruereg, data); 409 done: 410 if (!locked) 411 RUE_UNLOCK(sc); 412 return (0); 413 } 414 415 static void 416 rue_miibus_statchg(device_t dev) 417 { 418 /* 419 * When the code below is enabled the card starts doing weird 420 * things after link going from UP to DOWN and back UP. 421 * 422 * Looks like some of register writes below messes up PHY 423 * interface. 424 * 425 * No visible regressions were found after commenting this code 426 * out, so that disable it for good. 427 */ 428 #if 0 429 struct rue_softc *sc = device_get_softc(dev); 430 struct mii_data *mii = GET_MII(sc); 431 uint16_t bmcr; 432 int locked; 433 434 locked = mtx_owned(&sc->sc_mtx); 435 if (!locked) 436 RUE_LOCK(sc); 437 438 RUE_CLRBIT(sc, RUE_CR, (RUE_CR_RE | RUE_CR_TE)); 439 440 bmcr = rue_csr_read_2(sc, RUE_BMCR); 441 442 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_100_TX) 443 bmcr |= RUE_BMCR_SPD_SET; 444 else 445 bmcr &= ~RUE_BMCR_SPD_SET; 446 447 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 448 bmcr |= RUE_BMCR_DUPLEX; 449 else 450 bmcr &= ~RUE_BMCR_DUPLEX; 451 452 rue_csr_write_2(sc, RUE_BMCR, bmcr); 453 454 RUE_SETBIT(sc, RUE_CR, (RUE_CR_RE | RUE_CR_TE)); 455 456 if (!locked) 457 RUE_UNLOCK(sc); 458 #endif 459 } 460 461 static void 462 rue_setpromisc(struct usb_ether *ue) 463 { 464 struct rue_softc *sc = uether_getsc(ue); 465 struct ifnet *ifp = uether_getifp(ue); 466 467 RUE_LOCK_ASSERT(sc, MA_OWNED); 468 469 /* If we want promiscuous mode, set the allframes bit. */ 470 if (ifp->if_flags & IFF_PROMISC) 471 RUE_SETBIT(sc, RUE_RCR, RUE_RCR_AAP); 472 else 473 RUE_CLRBIT(sc, RUE_RCR, RUE_RCR_AAP); 474 } 475 476 /* 477 * Program the 64-bit multicast hash filter. 478 */ 479 static void 480 rue_setmulti(struct usb_ether *ue) 481 { 482 struct rue_softc *sc = uether_getsc(ue); 483 struct ifnet *ifp = uether_getifp(ue); 484 uint16_t rxcfg; 485 int h = 0; 486 uint32_t hashes[2] = { 0, 0 }; 487 struct ifmultiaddr *ifma; 488 int mcnt = 0; 489 490 RUE_LOCK_ASSERT(sc, MA_OWNED); 491 492 rxcfg = rue_csr_read_2(sc, RUE_RCR); 493 494 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 495 rxcfg |= (RUE_RCR_AAM | RUE_RCR_AAP); 496 rxcfg &= ~RUE_RCR_AM; 497 rue_csr_write_2(sc, RUE_RCR, rxcfg); 498 rue_csr_write_4(sc, RUE_MAR0, 0xFFFFFFFF); 499 rue_csr_write_4(sc, RUE_MAR4, 0xFFFFFFFF); 500 return; 501 } 502 503 /* first, zot all the existing hash bits */ 504 rue_csr_write_4(sc, RUE_MAR0, 0); 505 rue_csr_write_4(sc, RUE_MAR4, 0); 506 507 /* now program new ones */ 508 if_maddr_rlock(ifp); 509 CK_STAILQ_FOREACH (ifma, &ifp->if_multiaddrs, ifma_link) 510 { 511 if (ifma->ifma_addr->sa_family != AF_LINK) 512 continue; 513 h = ether_crc32_be(LLADDR((struct sockaddr_dl *) 514 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; 515 if (h < 32) 516 hashes[0] |= (1 << h); 517 else 518 hashes[1] |= (1 << (h - 32)); 519 mcnt++; 520 } 521 if_maddr_runlock(ifp); 522 523 if (mcnt) 524 rxcfg |= RUE_RCR_AM; 525 else 526 rxcfg &= ~RUE_RCR_AM; 527 528 rxcfg &= ~(RUE_RCR_AAM | RUE_RCR_AAP); 529 530 rue_csr_write_2(sc, RUE_RCR, rxcfg); 531 rue_csr_write_4(sc, RUE_MAR0, hashes[0]); 532 rue_csr_write_4(sc, RUE_MAR4, hashes[1]); 533 } 534 535 static void 536 rue_reset(struct rue_softc *sc) 537 { 538 int i; 539 540 rue_csr_write_1(sc, RUE_CR, RUE_CR_SOFT_RST); 541 542 for (i = 0; i != RUE_TIMEOUT; i++) { 543 if (uether_pause(&sc->sc_ue, hz / 1000)) 544 break; 545 if (!(rue_csr_read_1(sc, RUE_CR) & RUE_CR_SOFT_RST)) 546 break; 547 } 548 if (i == RUE_TIMEOUT) 549 device_printf(sc->sc_ue.ue_dev, "reset never completed\n"); 550 551 uether_pause(&sc->sc_ue, hz / 100); 552 } 553 554 static void 555 rue_attach_post(struct usb_ether *ue) 556 { 557 struct rue_softc *sc = uether_getsc(ue); 558 559 /* reset the adapter */ 560 rue_reset(sc); 561 562 /* get station address from the EEPROM */ 563 rue_read_mem(sc, RUE_EEPROM_IDR0, ue->ue_eaddr, ETHER_ADDR_LEN); 564 } 565 566 /* 567 * Probe for a RTL8150 chip. 568 */ 569 static int 570 rue_probe(device_t dev) 571 { 572 struct usb_attach_arg *uaa = device_get_ivars(dev); 573 574 if (uaa->usb_mode != USB_MODE_HOST) 575 return (ENXIO); 576 if (uaa->info.bConfigIndex != RUE_CONFIG_IDX) 577 return (ENXIO); 578 if (uaa->info.bIfaceIndex != RUE_IFACE_IDX) 579 return (ENXIO); 580 581 return (usbd_lookup_id_by_uaa(rue_devs, sizeof(rue_devs), uaa)); 582 } 583 584 /* 585 * Attach the interface. Allocate softc structures, do ifmedia 586 * setup and ethernet/BPF attach. 587 */ 588 static int 589 rue_attach(device_t dev) 590 { 591 struct usb_attach_arg *uaa = device_get_ivars(dev); 592 struct rue_softc *sc = device_get_softc(dev); 593 struct usb_ether *ue = &sc->sc_ue; 594 uint8_t iface_index; 595 int error; 596 597 device_set_usb_desc(dev); 598 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 599 600 iface_index = RUE_IFACE_IDX; 601 error = usbd_transfer_setup(uaa->device, &iface_index, 602 sc->sc_xfer, rue_config, RUE_N_TRANSFER, 603 sc, &sc->sc_mtx); 604 if (error) { 605 device_printf(dev, "allocating USB transfers failed\n"); 606 goto detach; 607 } 608 609 ue->ue_sc = sc; 610 ue->ue_dev = dev; 611 ue->ue_udev = uaa->device; 612 ue->ue_mtx = &sc->sc_mtx; 613 ue->ue_methods = &rue_ue_methods; 614 615 error = uether_ifattach(ue); 616 if (error) { 617 device_printf(dev, "could not attach interface\n"); 618 goto detach; 619 } 620 return (0); /* success */ 621 622 detach: 623 rue_detach(dev); 624 return (ENXIO); /* failure */ 625 } 626 627 static int 628 rue_detach(device_t dev) 629 { 630 struct rue_softc *sc = device_get_softc(dev); 631 struct usb_ether *ue = &sc->sc_ue; 632 633 usbd_transfer_unsetup(sc->sc_xfer, RUE_N_TRANSFER); 634 uether_ifdetach(ue); 635 mtx_destroy(&sc->sc_mtx); 636 637 return (0); 638 } 639 640 static void 641 rue_intr_callback(struct usb_xfer *xfer, usb_error_t error) 642 { 643 struct rue_softc *sc = usbd_xfer_softc(xfer); 644 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 645 struct rue_intrpkt pkt; 646 struct usb_page_cache *pc; 647 int actlen; 648 649 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 650 651 switch (USB_GET_STATE(xfer)) { 652 case USB_ST_TRANSFERRED: 653 654 if (ifp && (ifp->if_drv_flags & IFF_DRV_RUNNING) && 655 actlen >= (int)sizeof(pkt)) { 656 657 pc = usbd_xfer_get_frame(xfer, 0); 658 usbd_copy_out(pc, 0, &pkt, sizeof(pkt)); 659 660 if_inc_counter(ifp, IFCOUNTER_IERRORS, pkt.rue_rxlost_cnt); 661 if_inc_counter(ifp, IFCOUNTER_IERRORS, pkt.rue_crcerr_cnt); 662 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, pkt.rue_col_cnt); 663 } 664 /* FALLTHROUGH */ 665 case USB_ST_SETUP: 666 tr_setup: 667 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 668 usbd_transfer_submit(xfer); 669 return; 670 671 default: /* Error */ 672 if (error != USB_ERR_CANCELLED) { 673 /* try to clear stall first */ 674 usbd_xfer_set_stall(xfer); 675 goto tr_setup; 676 } 677 return; 678 } 679 } 680 681 static void 682 rue_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 683 { 684 struct rue_softc *sc = usbd_xfer_softc(xfer); 685 struct usb_ether *ue = &sc->sc_ue; 686 struct ifnet *ifp = uether_getifp(ue); 687 struct usb_page_cache *pc; 688 uint16_t status; 689 int actlen; 690 691 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 692 693 switch (USB_GET_STATE(xfer)) { 694 case USB_ST_TRANSFERRED: 695 696 if (actlen < 4) { 697 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 698 goto tr_setup; 699 } 700 pc = usbd_xfer_get_frame(xfer, 0); 701 usbd_copy_out(pc, actlen - 4, &status, sizeof(status)); 702 actlen -= 4; 703 704 /* check receive packet was valid or not */ 705 status = le16toh(status); 706 if ((status & RUE_RXSTAT_VALID) == 0) { 707 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 708 goto tr_setup; 709 } 710 uether_rxbuf(ue, pc, 0, actlen); 711 /* FALLTHROUGH */ 712 case USB_ST_SETUP: 713 tr_setup: 714 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 715 usbd_transfer_submit(xfer); 716 uether_rxflush(ue); 717 return; 718 719 default: /* Error */ 720 DPRINTF("bulk read error, %s\n", 721 usbd_errstr(error)); 722 723 if (error != USB_ERR_CANCELLED) { 724 /* try to clear stall first */ 725 usbd_xfer_set_stall(xfer); 726 goto tr_setup; 727 } 728 return; 729 } 730 } 731 732 static void 733 rue_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 734 { 735 struct rue_softc *sc = usbd_xfer_softc(xfer); 736 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 737 struct usb_page_cache *pc; 738 struct mbuf *m; 739 int temp_len; 740 741 switch (USB_GET_STATE(xfer)) { 742 case USB_ST_TRANSFERRED: 743 DPRINTFN(11, "transfer complete\n"); 744 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 745 746 /* FALLTHROUGH */ 747 case USB_ST_SETUP: 748 tr_setup: 749 if ((sc->sc_flags & RUE_FLAG_LINK) == 0) { 750 /* 751 * don't send anything if there is no link ! 752 */ 753 return; 754 } 755 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 756 757 if (m == NULL) 758 return; 759 if (m->m_pkthdr.len > MCLBYTES) 760 m->m_pkthdr.len = MCLBYTES; 761 temp_len = m->m_pkthdr.len; 762 763 pc = usbd_xfer_get_frame(xfer, 0); 764 usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len); 765 766 /* 767 * This is an undocumented behavior. 768 * RTL8150 chip doesn't send frame length smaller than 769 * RUE_MIN_FRAMELEN (60) byte packet. 770 */ 771 if (temp_len < RUE_MIN_FRAMELEN) { 772 usbd_frame_zero(pc, temp_len, 773 RUE_MIN_FRAMELEN - temp_len); 774 temp_len = RUE_MIN_FRAMELEN; 775 } 776 usbd_xfer_set_frame_len(xfer, 0, temp_len); 777 778 /* 779 * if there's a BPF listener, bounce a copy 780 * of this frame to him: 781 */ 782 BPF_MTAP(ifp, m); 783 784 m_freem(m); 785 786 usbd_transfer_submit(xfer); 787 788 return; 789 790 default: /* Error */ 791 DPRINTFN(11, "transfer error, %s\n", 792 usbd_errstr(error)); 793 794 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 795 796 if (error != USB_ERR_CANCELLED) { 797 /* try to clear stall first */ 798 usbd_xfer_set_stall(xfer); 799 goto tr_setup; 800 } 801 return; 802 } 803 } 804 805 static void 806 rue_tick(struct usb_ether *ue) 807 { 808 struct rue_softc *sc = uether_getsc(ue); 809 struct mii_data *mii = GET_MII(sc); 810 811 RUE_LOCK_ASSERT(sc, MA_OWNED); 812 813 mii_tick(mii); 814 if ((sc->sc_flags & RUE_FLAG_LINK) == 0 815 && mii->mii_media_status & IFM_ACTIVE && 816 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 817 sc->sc_flags |= RUE_FLAG_LINK; 818 rue_start(ue); 819 } 820 } 821 822 static void 823 rue_start(struct usb_ether *ue) 824 { 825 struct rue_softc *sc = uether_getsc(ue); 826 827 /* 828 * start the USB transfers, if not already started: 829 */ 830 usbd_transfer_start(sc->sc_xfer[RUE_INTR_DT_RD]); 831 usbd_transfer_start(sc->sc_xfer[RUE_BULK_DT_RD]); 832 usbd_transfer_start(sc->sc_xfer[RUE_BULK_DT_WR]); 833 } 834 835 static void 836 rue_init(struct usb_ether *ue) 837 { 838 struct rue_softc *sc = uether_getsc(ue); 839 struct ifnet *ifp = uether_getifp(ue); 840 841 RUE_LOCK_ASSERT(sc, MA_OWNED); 842 843 /* 844 * Cancel pending I/O 845 */ 846 rue_reset(sc); 847 848 /* Set MAC address */ 849 rue_write_mem(sc, RUE_IDR0, IF_LLADDR(ifp), ETHER_ADDR_LEN); 850 851 rue_stop(ue); 852 853 /* 854 * Set the initial TX and RX configuration. 855 */ 856 rue_csr_write_1(sc, RUE_TCR, RUE_TCR_CONFIG); 857 rue_csr_write_2(sc, RUE_RCR, RUE_RCR_CONFIG|RUE_RCR_AB); 858 859 /* Load the multicast filter */ 860 rue_setpromisc(ue); 861 /* Load the multicast filter. */ 862 rue_setmulti(ue); 863 864 /* Enable RX and TX */ 865 rue_csr_write_1(sc, RUE_CR, (RUE_CR_TE | RUE_CR_RE | RUE_CR_EP3CLREN)); 866 867 usbd_xfer_set_stall(sc->sc_xfer[RUE_BULK_DT_WR]); 868 869 ifp->if_drv_flags |= IFF_DRV_RUNNING; 870 rue_start(ue); 871 } 872 873 /* 874 * Set media options. 875 */ 876 static int 877 rue_ifmedia_upd(struct ifnet *ifp) 878 { 879 struct rue_softc *sc = ifp->if_softc; 880 struct mii_data *mii = GET_MII(sc); 881 struct mii_softc *miisc; 882 int error; 883 884 RUE_LOCK_ASSERT(sc, MA_OWNED); 885 886 sc->sc_flags &= ~RUE_FLAG_LINK; 887 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 888 PHY_RESET(miisc); 889 error = mii_mediachg(mii); 890 return (error); 891 } 892 893 /* 894 * Report current media status. 895 */ 896 static void 897 rue_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 898 { 899 struct rue_softc *sc = ifp->if_softc; 900 struct mii_data *mii = GET_MII(sc); 901 902 RUE_LOCK(sc); 903 mii_pollstat(mii); 904 ifmr->ifm_active = mii->mii_media_active; 905 ifmr->ifm_status = mii->mii_media_status; 906 RUE_UNLOCK(sc); 907 } 908 909 static void 910 rue_stop(struct usb_ether *ue) 911 { 912 struct rue_softc *sc = uether_getsc(ue); 913 struct ifnet *ifp = uether_getifp(ue); 914 915 RUE_LOCK_ASSERT(sc, MA_OWNED); 916 917 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 918 sc->sc_flags &= ~RUE_FLAG_LINK; 919 920 /* 921 * stop all the transfers, if not already stopped: 922 */ 923 usbd_transfer_stop(sc->sc_xfer[RUE_BULK_DT_WR]); 924 usbd_transfer_stop(sc->sc_xfer[RUE_BULK_DT_RD]); 925 usbd_transfer_stop(sc->sc_xfer[RUE_INTR_DT_RD]); 926 927 rue_csr_write_1(sc, RUE_CR, 0x00); 928 929 rue_reset(sc); 930 } 931