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