if_rue.c revision 217265
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: head/sys/dev/usb/net/if_rue.c 217265 2011-01-11 13:59:06Z jhb $"); 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 102SYSCTL_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_device_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 /* Bus interface */ 190 DEVMETHOD(bus_print_child, bus_generic_print_child), 191 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 192 193 /* MII interface */ 194 DEVMETHOD(miibus_readreg, rue_miibus_readreg), 195 DEVMETHOD(miibus_writereg, rue_miibus_writereg), 196 DEVMETHOD(miibus_statchg, rue_miibus_statchg), 197 198 {0, 0} 199}; 200 201static driver_t rue_driver = { 202 .name = "rue", 203 .methods = rue_methods, 204 .size = sizeof(struct rue_softc), 205}; 206 207static devclass_t rue_devclass; 208 209DRIVER_MODULE(rue, uhub, rue_driver, rue_devclass, NULL, 0); 210DRIVER_MODULE(miibus, rue, miibus_driver, miibus_devclass, 0, 0); 211MODULE_DEPEND(rue, uether, 1, 1, 1); 212MODULE_DEPEND(rue, usb, 1, 1, 1); 213MODULE_DEPEND(rue, ether, 1, 1, 1); 214MODULE_DEPEND(rue, miibus, 1, 1, 1); 215MODULE_VERSION(rue, 1); 216 217static const struct usb_ether_methods rue_ue_methods = { 218 .ue_attach_post = rue_attach_post, 219 .ue_start = rue_start, 220 .ue_init = rue_init, 221 .ue_stop = rue_stop, 222 .ue_tick = rue_tick, 223 .ue_setmulti = rue_setmulti, 224 .ue_setpromisc = rue_setpromisc, 225 .ue_mii_upd = rue_ifmedia_upd, 226 .ue_mii_sts = rue_ifmedia_sts, 227}; 228 229#define RUE_SETBIT(sc, reg, x) \ 230 rue_csr_write_1(sc, reg, rue_csr_read_1(sc, reg) | (x)) 231 232#define RUE_CLRBIT(sc, reg, x) \ 233 rue_csr_write_1(sc, reg, rue_csr_read_1(sc, reg) & ~(x)) 234 235static int 236rue_read_mem(struct rue_softc *sc, uint16_t addr, void *buf, int len) 237{ 238 struct usb_device_request req; 239 240 req.bmRequestType = UT_READ_VENDOR_DEVICE; 241 req.bRequest = UR_SET_ADDRESS; 242 USETW(req.wValue, addr); 243 USETW(req.wIndex, 0); 244 USETW(req.wLength, len); 245 246 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 247} 248 249static int 250rue_write_mem(struct rue_softc *sc, uint16_t addr, void *buf, int len) 251{ 252 struct usb_device_request req; 253 254 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 255 req.bRequest = UR_SET_ADDRESS; 256 USETW(req.wValue, addr); 257 USETW(req.wIndex, 0); 258 USETW(req.wLength, len); 259 260 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 261} 262 263static uint8_t 264rue_csr_read_1(struct rue_softc *sc, uint16_t reg) 265{ 266 uint8_t val; 267 268 rue_read_mem(sc, reg, &val, 1); 269 return (val); 270} 271 272static uint16_t 273rue_csr_read_2(struct rue_softc *sc, uint16_t reg) 274{ 275 uint8_t val[2]; 276 277 rue_read_mem(sc, reg, &val, 2); 278 return (UGETW(val)); 279} 280 281static int 282rue_csr_write_1(struct rue_softc *sc, uint16_t reg, uint8_t val) 283{ 284 return (rue_write_mem(sc, reg, &val, 1)); 285} 286 287static int 288rue_csr_write_2(struct rue_softc *sc, uint16_t reg, uint16_t val) 289{ 290 uint8_t temp[2]; 291 292 USETW(temp, val); 293 return (rue_write_mem(sc, reg, &temp, 2)); 294} 295 296static int 297rue_csr_write_4(struct rue_softc *sc, int reg, uint32_t val) 298{ 299 uint8_t temp[4]; 300 301 USETDW(temp, val); 302 return (rue_write_mem(sc, reg, &temp, 4)); 303} 304 305static int 306rue_miibus_readreg(device_t dev, int phy, int reg) 307{ 308 struct rue_softc *sc = device_get_softc(dev); 309 uint16_t rval; 310 uint16_t ruereg; 311 int locked; 312 313 if (phy != 0) /* RTL8150 supports PHY == 0, only */ 314 return (0); 315 316 locked = mtx_owned(&sc->sc_mtx); 317 if (!locked) 318 RUE_LOCK(sc); 319 320 switch (reg) { 321 case MII_BMCR: 322 ruereg = RUE_BMCR; 323 break; 324 case MII_BMSR: 325 ruereg = RUE_BMSR; 326 break; 327 case MII_ANAR: 328 ruereg = RUE_ANAR; 329 break; 330 case MII_ANER: 331 ruereg = RUE_AER; 332 break; 333 case MII_ANLPAR: 334 ruereg = RUE_ANLP; 335 break; 336 case MII_PHYIDR1: 337 case MII_PHYIDR2: 338 rval = 0; 339 goto done; 340 default: 341 if (RUE_REG_MIN <= reg && reg <= RUE_REG_MAX) { 342 rval = rue_csr_read_1(sc, reg); 343 goto done; 344 } 345 device_printf(sc->sc_ue.ue_dev, "bad phy register\n"); 346 rval = 0; 347 goto done; 348 } 349 350 rval = rue_csr_read_2(sc, ruereg); 351done: 352 if (!locked) 353 RUE_UNLOCK(sc); 354 return (rval); 355} 356 357static int 358rue_miibus_writereg(device_t dev, int phy, int reg, int data) 359{ 360 struct rue_softc *sc = device_get_softc(dev); 361 uint16_t ruereg; 362 int locked; 363 364 if (phy != 0) /* RTL8150 supports PHY == 0, only */ 365 return (0); 366 367 locked = mtx_owned(&sc->sc_mtx); 368 if (!locked) 369 RUE_LOCK(sc); 370 371 switch (reg) { 372 case MII_BMCR: 373 ruereg = RUE_BMCR; 374 break; 375 case MII_BMSR: 376 ruereg = RUE_BMSR; 377 break; 378 case MII_ANAR: 379 ruereg = RUE_ANAR; 380 break; 381 case MII_ANER: 382 ruereg = RUE_AER; 383 break; 384 case MII_ANLPAR: 385 ruereg = RUE_ANLP; 386 break; 387 case MII_PHYIDR1: 388 case MII_PHYIDR2: 389 goto done; 390 default: 391 if (RUE_REG_MIN <= reg && reg <= RUE_REG_MAX) { 392 rue_csr_write_1(sc, reg, data); 393 goto done; 394 } 395 device_printf(sc->sc_ue.ue_dev, " bad phy register\n"); 396 goto done; 397 } 398 rue_csr_write_2(sc, ruereg, data); 399done: 400 if (!locked) 401 RUE_UNLOCK(sc); 402 return (0); 403} 404 405static void 406rue_miibus_statchg(device_t dev) 407{ 408 /* 409 * When the code below is enabled the card starts doing weird 410 * things after link going from UP to DOWN and back UP. 411 * 412 * Looks like some of register writes below messes up PHY 413 * interface. 414 * 415 * No visible regressions were found after commenting this code 416 * out, so that disable it for good. 417 */ 418#if 0 419 struct rue_softc *sc = device_get_softc(dev); 420 struct mii_data *mii = GET_MII(sc); 421 uint16_t bmcr; 422 int locked; 423 424 locked = mtx_owned(&sc->sc_mtx); 425 if (!locked) 426 RUE_LOCK(sc); 427 428 RUE_CLRBIT(sc, RUE_CR, (RUE_CR_RE | RUE_CR_TE)); 429 430 bmcr = rue_csr_read_2(sc, RUE_BMCR); 431 432 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_100_TX) 433 bmcr |= RUE_BMCR_SPD_SET; 434 else 435 bmcr &= ~RUE_BMCR_SPD_SET; 436 437 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 438 bmcr |= RUE_BMCR_DUPLEX; 439 else 440 bmcr &= ~RUE_BMCR_DUPLEX; 441 442 rue_csr_write_2(sc, RUE_BMCR, bmcr); 443 444 RUE_SETBIT(sc, RUE_CR, (RUE_CR_RE | RUE_CR_TE)); 445 446 if (!locked) 447 RUE_UNLOCK(sc); 448#endif 449} 450 451static void 452rue_setpromisc(struct usb_ether *ue) 453{ 454 struct rue_softc *sc = uether_getsc(ue); 455 struct ifnet *ifp = uether_getifp(ue); 456 457 RUE_LOCK_ASSERT(sc, MA_OWNED); 458 459 /* If we want promiscuous mode, set the allframes bit. */ 460 if (ifp->if_flags & IFF_PROMISC) 461 RUE_SETBIT(sc, RUE_RCR, RUE_RCR_AAP); 462 else 463 RUE_CLRBIT(sc, RUE_RCR, RUE_RCR_AAP); 464} 465 466/* 467 * Program the 64-bit multicast hash filter. 468 */ 469static void 470rue_setmulti(struct usb_ether *ue) 471{ 472 struct rue_softc *sc = uether_getsc(ue); 473 struct ifnet *ifp = uether_getifp(ue); 474 uint16_t rxcfg; 475 int h = 0; 476 uint32_t hashes[2] = { 0, 0 }; 477 struct ifmultiaddr *ifma; 478 int mcnt = 0; 479 480 RUE_LOCK_ASSERT(sc, MA_OWNED); 481 482 rxcfg = rue_csr_read_2(sc, RUE_RCR); 483 484 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 485 rxcfg |= (RUE_RCR_AAM | RUE_RCR_AAP); 486 rxcfg &= ~RUE_RCR_AM; 487 rue_csr_write_2(sc, RUE_RCR, rxcfg); 488 rue_csr_write_4(sc, RUE_MAR0, 0xFFFFFFFF); 489 rue_csr_write_4(sc, RUE_MAR4, 0xFFFFFFFF); 490 return; 491 } 492 493 /* first, zot all the existing hash bits */ 494 rue_csr_write_4(sc, RUE_MAR0, 0); 495 rue_csr_write_4(sc, RUE_MAR4, 0); 496 497 /* now program new ones */ 498 if_maddr_rlock(ifp); 499 TAILQ_FOREACH (ifma, &ifp->if_multiaddrs, ifma_link) 500 { 501 if (ifma->ifma_addr->sa_family != AF_LINK) 502 continue; 503 h = ether_crc32_be(LLADDR((struct sockaddr_dl *) 504 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; 505 if (h < 32) 506 hashes[0] |= (1 << h); 507 else 508 hashes[1] |= (1 << (h - 32)); 509 mcnt++; 510 } 511 if_maddr_runlock(ifp); 512 513 if (mcnt) 514 rxcfg |= RUE_RCR_AM; 515 else 516 rxcfg &= ~RUE_RCR_AM; 517 518 rxcfg &= ~(RUE_RCR_AAM | RUE_RCR_AAP); 519 520 rue_csr_write_2(sc, RUE_RCR, rxcfg); 521 rue_csr_write_4(sc, RUE_MAR0, hashes[0]); 522 rue_csr_write_4(sc, RUE_MAR4, hashes[1]); 523} 524 525static void 526rue_reset(struct rue_softc *sc) 527{ 528 int i; 529 530 rue_csr_write_1(sc, RUE_CR, RUE_CR_SOFT_RST); 531 532 for (i = 0; i != RUE_TIMEOUT; i++) { 533 if (uether_pause(&sc->sc_ue, hz / 1000)) 534 break; 535 if (!(rue_csr_read_1(sc, RUE_CR) & RUE_CR_SOFT_RST)) 536 break; 537 } 538 if (i == RUE_TIMEOUT) 539 device_printf(sc->sc_ue.ue_dev, "reset never completed\n"); 540 541 uether_pause(&sc->sc_ue, hz / 100); 542} 543 544static void 545rue_attach_post(struct usb_ether *ue) 546{ 547 struct rue_softc *sc = uether_getsc(ue); 548 549 /* reset the adapter */ 550 rue_reset(sc); 551 552 /* get station address from the EEPROM */ 553 rue_read_mem(sc, RUE_EEPROM_IDR0, ue->ue_eaddr, ETHER_ADDR_LEN); 554} 555 556/* 557 * Probe for a RTL8150 chip. 558 */ 559static int 560rue_probe(device_t dev) 561{ 562 struct usb_attach_arg *uaa = device_get_ivars(dev); 563 564 if (uaa->usb_mode != USB_MODE_HOST) 565 return (ENXIO); 566 if (uaa->info.bConfigIndex != RUE_CONFIG_IDX) 567 return (ENXIO); 568 if (uaa->info.bIfaceIndex != RUE_IFACE_IDX) 569 return (ENXIO); 570 571 return (usbd_lookup_id_by_uaa(rue_devs, sizeof(rue_devs), uaa)); 572} 573 574/* 575 * Attach the interface. Allocate softc structures, do ifmedia 576 * setup and ethernet/BPF attach. 577 */ 578static int 579rue_attach(device_t dev) 580{ 581 struct usb_attach_arg *uaa = device_get_ivars(dev); 582 struct rue_softc *sc = device_get_softc(dev); 583 struct usb_ether *ue = &sc->sc_ue; 584 uint8_t iface_index; 585 int error; 586 587 device_set_usb_desc(dev); 588 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 589 590 iface_index = RUE_IFACE_IDX; 591 error = usbd_transfer_setup(uaa->device, &iface_index, 592 sc->sc_xfer, rue_config, RUE_N_TRANSFER, 593 sc, &sc->sc_mtx); 594 if (error) { 595 device_printf(dev, "allocating USB transfers failed\n"); 596 goto detach; 597 } 598 599 ue->ue_sc = sc; 600 ue->ue_dev = dev; 601 ue->ue_udev = uaa->device; 602 ue->ue_mtx = &sc->sc_mtx; 603 ue->ue_methods = &rue_ue_methods; 604 605 error = uether_ifattach(ue); 606 if (error) { 607 device_printf(dev, "could not attach interface\n"); 608 goto detach; 609 } 610 return (0); /* success */ 611 612detach: 613 rue_detach(dev); 614 return (ENXIO); /* failure */ 615} 616 617static int 618rue_detach(device_t dev) 619{ 620 struct rue_softc *sc = device_get_softc(dev); 621 struct usb_ether *ue = &sc->sc_ue; 622 623 usbd_transfer_unsetup(sc->sc_xfer, RUE_N_TRANSFER); 624 uether_ifdetach(ue); 625 mtx_destroy(&sc->sc_mtx); 626 627 return (0); 628} 629 630static void 631rue_intr_callback(struct usb_xfer *xfer, usb_error_t error) 632{ 633 struct rue_softc *sc = usbd_xfer_softc(xfer); 634 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 635 struct rue_intrpkt pkt; 636 struct usb_page_cache *pc; 637 int actlen; 638 639 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 640 641 switch (USB_GET_STATE(xfer)) { 642 case USB_ST_TRANSFERRED: 643 644 if (ifp && (ifp->if_drv_flags & IFF_DRV_RUNNING) && 645 actlen >= sizeof(pkt)) { 646 647 pc = usbd_xfer_get_frame(xfer, 0); 648 usbd_copy_out(pc, 0, &pkt, sizeof(pkt)); 649 650 ifp->if_ierrors += pkt.rue_rxlost_cnt; 651 ifp->if_ierrors += pkt.rue_crcerr_cnt; 652 ifp->if_collisions += pkt.rue_col_cnt; 653 } 654 /* FALLTHROUGH */ 655 case USB_ST_SETUP: 656tr_setup: 657 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 658 usbd_transfer_submit(xfer); 659 return; 660 661 default: /* Error */ 662 if (error != USB_ERR_CANCELLED) { 663 /* try to clear stall first */ 664 usbd_xfer_set_stall(xfer); 665 goto tr_setup; 666 } 667 return; 668 } 669} 670 671static void 672rue_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 673{ 674 struct rue_softc *sc = usbd_xfer_softc(xfer); 675 struct usb_ether *ue = &sc->sc_ue; 676 struct ifnet *ifp = uether_getifp(ue); 677 struct usb_page_cache *pc; 678 uint16_t status; 679 int actlen; 680 681 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 682 683 switch (USB_GET_STATE(xfer)) { 684 case USB_ST_TRANSFERRED: 685 686 if (actlen < 4) { 687 ifp->if_ierrors++; 688 goto tr_setup; 689 } 690 pc = usbd_xfer_get_frame(xfer, 0); 691 usbd_copy_out(pc, actlen - 4, &status, sizeof(status)); 692 actlen -= 4; 693 694 /* check recieve packet was valid or not */ 695 status = le16toh(status); 696 if ((status & RUE_RXSTAT_VALID) == 0) { 697 ifp->if_ierrors++; 698 goto tr_setup; 699 } 700 uether_rxbuf(ue, pc, 0, actlen); 701 /* FALLTHROUGH */ 702 case USB_ST_SETUP: 703tr_setup: 704 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 705 usbd_transfer_submit(xfer); 706 uether_rxflush(ue); 707 return; 708 709 default: /* Error */ 710 DPRINTF("bulk read error, %s\n", 711 usbd_errstr(error)); 712 713 if (error != USB_ERR_CANCELLED) { 714 /* try to clear stall first */ 715 usbd_xfer_set_stall(xfer); 716 goto tr_setup; 717 } 718 return; 719 } 720} 721 722static void 723rue_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 724{ 725 struct rue_softc *sc = usbd_xfer_softc(xfer); 726 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 727 struct usb_page_cache *pc; 728 struct mbuf *m; 729 int temp_len; 730 731 switch (USB_GET_STATE(xfer)) { 732 case USB_ST_TRANSFERRED: 733 DPRINTFN(11, "transfer complete\n"); 734 ifp->if_opackets++; 735 736 /* FALLTHROUGH */ 737 case USB_ST_SETUP: 738tr_setup: 739 if ((sc->sc_flags & RUE_FLAG_LINK) == 0) { 740 /* 741 * don't send anything if there is no link ! 742 */ 743 return; 744 } 745 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 746 747 if (m == NULL) 748 return; 749 if (m->m_pkthdr.len > MCLBYTES) 750 m->m_pkthdr.len = MCLBYTES; 751 temp_len = m->m_pkthdr.len; 752 753 pc = usbd_xfer_get_frame(xfer, 0); 754 usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len); 755 756 /* 757 * This is an undocumented behavior. 758 * RTL8150 chip doesn't send frame length smaller than 759 * RUE_MIN_FRAMELEN (60) byte packet. 760 */ 761 if (temp_len < RUE_MIN_FRAMELEN) { 762 usbd_frame_zero(pc, temp_len, 763 RUE_MIN_FRAMELEN - temp_len); 764 temp_len = RUE_MIN_FRAMELEN; 765 } 766 usbd_xfer_set_frame_len(xfer, 0, temp_len); 767 768 /* 769 * if there's a BPF listener, bounce a copy 770 * of this frame to him: 771 */ 772 BPF_MTAP(ifp, m); 773 774 m_freem(m); 775 776 usbd_transfer_submit(xfer); 777 778 return; 779 780 default: /* Error */ 781 DPRINTFN(11, "transfer error, %s\n", 782 usbd_errstr(error)); 783 784 ifp->if_oerrors++; 785 786 if (error != USB_ERR_CANCELLED) { 787 /* try to clear stall first */ 788 usbd_xfer_set_stall(xfer); 789 goto tr_setup; 790 } 791 return; 792 } 793} 794 795static void 796rue_tick(struct usb_ether *ue) 797{ 798 struct rue_softc *sc = uether_getsc(ue); 799 struct mii_data *mii = GET_MII(sc); 800 801 RUE_LOCK_ASSERT(sc, MA_OWNED); 802 803 mii_tick(mii); 804 if ((sc->sc_flags & RUE_FLAG_LINK) == 0 805 && mii->mii_media_status & IFM_ACTIVE && 806 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 807 sc->sc_flags |= RUE_FLAG_LINK; 808 rue_start(ue); 809 } 810} 811 812static void 813rue_start(struct usb_ether *ue) 814{ 815 struct rue_softc *sc = uether_getsc(ue); 816 817 /* 818 * start the USB transfers, if not already started: 819 */ 820 usbd_transfer_start(sc->sc_xfer[RUE_INTR_DT_RD]); 821 usbd_transfer_start(sc->sc_xfer[RUE_BULK_DT_RD]); 822 usbd_transfer_start(sc->sc_xfer[RUE_BULK_DT_WR]); 823} 824 825static void 826rue_init(struct usb_ether *ue) 827{ 828 struct rue_softc *sc = uether_getsc(ue); 829 struct ifnet *ifp = uether_getifp(ue); 830 831 RUE_LOCK_ASSERT(sc, MA_OWNED); 832 833 /* 834 * Cancel pending I/O 835 */ 836 rue_reset(sc); 837 838 /* Set MAC address */ 839 rue_write_mem(sc, RUE_IDR0, IF_LLADDR(ifp), ETHER_ADDR_LEN); 840 841 rue_stop(ue); 842 843 /* 844 * Set the initial TX and RX configuration. 845 */ 846 rue_csr_write_1(sc, RUE_TCR, RUE_TCR_CONFIG); 847 rue_csr_write_2(sc, RUE_RCR, RUE_RCR_CONFIG|RUE_RCR_AB); 848 849 /* Load the multicast filter */ 850 rue_setpromisc(ue); 851 /* Load the multicast filter. */ 852 rue_setmulti(ue); 853 854 /* Enable RX and TX */ 855 rue_csr_write_1(sc, RUE_CR, (RUE_CR_TE | RUE_CR_RE | RUE_CR_EP3CLREN)); 856 857 usbd_xfer_set_stall(sc->sc_xfer[RUE_BULK_DT_WR]); 858 859 ifp->if_drv_flags |= IFF_DRV_RUNNING; 860 rue_start(ue); 861} 862 863/* 864 * Set media options. 865 */ 866static int 867rue_ifmedia_upd(struct ifnet *ifp) 868{ 869 struct rue_softc *sc = ifp->if_softc; 870 struct mii_data *mii = GET_MII(sc); 871 872 RUE_LOCK_ASSERT(sc, MA_OWNED); 873 874 sc->sc_flags &= ~RUE_FLAG_LINK; 875 if (mii->mii_instance) { 876 struct mii_softc *miisc; 877 878 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 879 mii_phy_reset(miisc); 880 } 881 mii_mediachg(mii); 882 return (0); 883} 884 885/* 886 * Report current media status. 887 */ 888static void 889rue_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 890{ 891 struct rue_softc *sc = ifp->if_softc; 892 struct mii_data *mii = GET_MII(sc); 893 894 RUE_LOCK(sc); 895 mii_pollstat(mii); 896 RUE_UNLOCK(sc); 897 ifmr->ifm_active = mii->mii_media_active; 898 ifmr->ifm_status = mii->mii_media_status; 899} 900 901static void 902rue_stop(struct usb_ether *ue) 903{ 904 struct rue_softc *sc = uether_getsc(ue); 905 struct ifnet *ifp = uether_getifp(ue); 906 907 RUE_LOCK_ASSERT(sc, MA_OWNED); 908 909 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 910 sc->sc_flags &= ~RUE_FLAG_LINK; 911 912 /* 913 * stop all the transfers, if not already stopped: 914 */ 915 usbd_transfer_stop(sc->sc_xfer[RUE_BULK_DT_WR]); 916 usbd_transfer_stop(sc->sc_xfer[RUE_BULK_DT_RD]); 917 usbd_transfer_stop(sc->sc_xfer[RUE_INTR_DT_RD]); 918 919 rue_csr_write_1(sc, RUE_CR, 0x00); 920 921 rue_reset(sc); 922} 923