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