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 | CTLFLAG_MPSAFE, 0, 115 "USB rue"); 116 SYSCTL_INT(_hw_usb_rue, OID_AUTO, debug, CTLFLAG_RWTUN, 117 &rue_debug, 0, "Debug level"); 118 #endif 119 120 /* 121 * Various supported device vendors/products. 122 */ 123 124 static const STRUCT_USB_HOST_ID rue_devs[] = { 125 {USB_VPI(USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUAKTX, 0)}, 126 {USB_VPI(USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_USBKR100, 0)}, 127 {USB_VPI(USB_VENDOR_OQO, USB_PRODUCT_OQO_ETHER01, 0)}, 128 }; 129 130 /* prototypes */ 131 132 static device_probe_t rue_probe; 133 static device_attach_t rue_attach; 134 static device_detach_t rue_detach; 135 136 static miibus_readreg_t rue_miibus_readreg; 137 static miibus_writereg_t rue_miibus_writereg; 138 static miibus_statchg_t rue_miibus_statchg; 139 140 static usb_callback_t rue_intr_callback; 141 static usb_callback_t rue_bulk_read_callback; 142 static usb_callback_t rue_bulk_write_callback; 143 144 static uether_fn_t rue_attach_post; 145 static uether_fn_t rue_init; 146 static uether_fn_t rue_stop; 147 static uether_fn_t rue_start; 148 static uether_fn_t rue_tick; 149 static uether_fn_t rue_setmulti; 150 static uether_fn_t rue_setpromisc; 151 152 static int rue_read_mem(struct rue_softc *, uint16_t, void *, int); 153 static int rue_write_mem(struct rue_softc *, uint16_t, void *, int); 154 static uint8_t rue_csr_read_1(struct rue_softc *, uint16_t); 155 static uint16_t rue_csr_read_2(struct rue_softc *, uint16_t); 156 static int rue_csr_write_1(struct rue_softc *, uint16_t, uint8_t); 157 static int rue_csr_write_2(struct rue_softc *, uint16_t, uint16_t); 158 static int rue_csr_write_4(struct rue_softc *, int, uint32_t); 159 160 static void rue_reset(struct rue_softc *); 161 static int rue_ifmedia_upd(struct ifnet *); 162 static void rue_ifmedia_sts(struct ifnet *, struct ifmediareq *); 163 164 static const struct usb_config rue_config[RUE_N_TRANSFER] = { 165 166 [RUE_BULK_DT_WR] = { 167 .type = UE_BULK, 168 .endpoint = UE_ADDR_ANY, 169 .direction = UE_DIR_OUT, 170 .bufsize = MCLBYTES, 171 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 172 .callback = rue_bulk_write_callback, 173 .timeout = 10000, /* 10 seconds */ 174 }, 175 176 [RUE_BULK_DT_RD] = { 177 .type = UE_BULK, 178 .endpoint = UE_ADDR_ANY, 179 .direction = UE_DIR_IN, 180 .bufsize = (MCLBYTES + 4), 181 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 182 .callback = rue_bulk_read_callback, 183 .timeout = 0, /* no timeout */ 184 }, 185 186 [RUE_INTR_DT_RD] = { 187 .type = UE_INTERRUPT, 188 .endpoint = UE_ADDR_ANY, 189 .direction = UE_DIR_IN, 190 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 191 .bufsize = 0, /* use wMaxPacketSize */ 192 .callback = rue_intr_callback, 193 }, 194 }; 195 196 static device_method_t rue_methods[] = { 197 /* Device interface */ 198 DEVMETHOD(device_probe, rue_probe), 199 DEVMETHOD(device_attach, rue_attach), 200 DEVMETHOD(device_detach, rue_detach), 201 202 /* MII interface */ 203 DEVMETHOD(miibus_readreg, rue_miibus_readreg), 204 DEVMETHOD(miibus_writereg, rue_miibus_writereg), 205 DEVMETHOD(miibus_statchg, rue_miibus_statchg), 206 207 DEVMETHOD_END 208 }; 209 210 static driver_t rue_driver = { 211 .name = "rue", 212 .methods = rue_methods, 213 .size = sizeof(struct rue_softc), 214 }; 215 216 static devclass_t rue_devclass; 217 218 DRIVER_MODULE_ORDERED(rue, uhub, rue_driver, rue_devclass, NULL, NULL, 219 SI_ORDER_ANY); 220 DRIVER_MODULE(miibus, rue, miibus_driver, miibus_devclass, NULL, NULL); 221 MODULE_DEPEND(rue, uether, 1, 1, 1); 222 MODULE_DEPEND(rue, usb, 1, 1, 1); 223 MODULE_DEPEND(rue, ether, 1, 1, 1); 224 MODULE_DEPEND(rue, miibus, 1, 1, 1); 225 MODULE_VERSION(rue, 1); 226 USB_PNP_HOST_INFO(rue_devs); 227 228 static const struct usb_ether_methods rue_ue_methods = { 229 .ue_attach_post = rue_attach_post, 230 .ue_start = rue_start, 231 .ue_init = rue_init, 232 .ue_stop = rue_stop, 233 .ue_tick = rue_tick, 234 .ue_setmulti = rue_setmulti, 235 .ue_setpromisc = rue_setpromisc, 236 .ue_mii_upd = rue_ifmedia_upd, 237 .ue_mii_sts = rue_ifmedia_sts, 238 }; 239 240 #define RUE_SETBIT(sc, reg, x) \ 241 rue_csr_write_1(sc, reg, rue_csr_read_1(sc, reg) | (x)) 242 243 #define RUE_CLRBIT(sc, reg, x) \ 244 rue_csr_write_1(sc, reg, rue_csr_read_1(sc, reg) & ~(x)) 245 246 static int 247 rue_read_mem(struct rue_softc *sc, uint16_t addr, void *buf, int len) 248 { 249 struct usb_device_request req; 250 251 req.bmRequestType = UT_READ_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 } 259 260 static int 261 rue_write_mem(struct rue_softc *sc, uint16_t addr, void *buf, int len) 262 { 263 struct usb_device_request req; 264 265 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 266 req.bRequest = UR_SET_ADDRESS; 267 USETW(req.wValue, addr); 268 USETW(req.wIndex, 0); 269 USETW(req.wLength, len); 270 271 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 272 } 273 274 static uint8_t 275 rue_csr_read_1(struct rue_softc *sc, uint16_t reg) 276 { 277 uint8_t val; 278 279 rue_read_mem(sc, reg, &val, 1); 280 return (val); 281 } 282 283 static uint16_t 284 rue_csr_read_2(struct rue_softc *sc, uint16_t reg) 285 { 286 uint8_t val[2]; 287 288 rue_read_mem(sc, reg, &val, 2); 289 return (UGETW(val)); 290 } 291 292 static int 293 rue_csr_write_1(struct rue_softc *sc, uint16_t reg, uint8_t val) 294 { 295 return (rue_write_mem(sc, reg, &val, 1)); 296 } 297 298 static int 299 rue_csr_write_2(struct rue_softc *sc, uint16_t reg, uint16_t val) 300 { 301 uint8_t temp[2]; 302 303 USETW(temp, val); 304 return (rue_write_mem(sc, reg, &temp, 2)); 305 } 306 307 static int 308 rue_csr_write_4(struct rue_softc *sc, int reg, uint32_t val) 309 { 310 uint8_t temp[4]; 311 312 USETDW(temp, val); 313 return (rue_write_mem(sc, reg, &temp, 4)); 314 } 315 316 static int 317 rue_miibus_readreg(device_t dev, int phy, int reg) 318 { 319 struct rue_softc *sc = device_get_softc(dev); 320 uint16_t rval; 321 uint16_t ruereg; 322 int locked; 323 324 if (phy != 0) /* RTL8150 supports PHY == 0, only */ 325 return (0); 326 327 locked = mtx_owned(&sc->sc_mtx); 328 if (!locked) 329 RUE_LOCK(sc); 330 331 switch (reg) { 332 case MII_BMCR: 333 ruereg = RUE_BMCR; 334 break; 335 case MII_BMSR: 336 ruereg = RUE_BMSR; 337 break; 338 case MII_ANAR: 339 ruereg = RUE_ANAR; 340 break; 341 case MII_ANER: 342 ruereg = RUE_AER; 343 break; 344 case MII_ANLPAR: 345 ruereg = RUE_ANLP; 346 break; 347 case MII_PHYIDR1: 348 case MII_PHYIDR2: 349 rval = 0; 350 goto done; 351 default: 352 if (RUE_REG_MIN <= reg && reg <= RUE_REG_MAX) { 353 rval = rue_csr_read_1(sc, reg); 354 goto done; 355 } 356 device_printf(sc->sc_ue.ue_dev, "bad phy register\n"); 357 rval = 0; 358 goto done; 359 } 360 361 rval = rue_csr_read_2(sc, ruereg); 362 done: 363 if (!locked) 364 RUE_UNLOCK(sc); 365 return (rval); 366 } 367 368 static int 369 rue_miibus_writereg(device_t dev, int phy, int reg, int data) 370 { 371 struct rue_softc *sc = device_get_softc(dev); 372 uint16_t ruereg; 373 int locked; 374 375 if (phy != 0) /* RTL8150 supports PHY == 0, only */ 376 return (0); 377 378 locked = mtx_owned(&sc->sc_mtx); 379 if (!locked) 380 RUE_LOCK(sc); 381 382 switch (reg) { 383 case MII_BMCR: 384 ruereg = RUE_BMCR; 385 break; 386 case MII_BMSR: 387 ruereg = RUE_BMSR; 388 break; 389 case MII_ANAR: 390 ruereg = RUE_ANAR; 391 break; 392 case MII_ANER: 393 ruereg = RUE_AER; 394 break; 395 case MII_ANLPAR: 396 ruereg = RUE_ANLP; 397 break; 398 case MII_PHYIDR1: 399 case MII_PHYIDR2: 400 goto done; 401 default: 402 if (RUE_REG_MIN <= reg && reg <= RUE_REG_MAX) { 403 rue_csr_write_1(sc, reg, data); 404 goto done; 405 } 406 device_printf(sc->sc_ue.ue_dev, " bad phy register\n"); 407 goto done; 408 } 409 rue_csr_write_2(sc, ruereg, data); 410 done: 411 if (!locked) 412 RUE_UNLOCK(sc); 413 return (0); 414 } 415 416 static void 417 rue_miibus_statchg(device_t dev) 418 { 419 /* 420 * When the code below is enabled the card starts doing weird 421 * things after link going from UP to DOWN and back UP. 422 * 423 * Looks like some of register writes below messes up PHY 424 * interface. 425 * 426 * No visible regressions were found after commenting this code 427 * out, so that disable it for good. 428 */ 429 #if 0 430 struct rue_softc *sc = device_get_softc(dev); 431 struct mii_data *mii = GET_MII(sc); 432 uint16_t bmcr; 433 int locked; 434 435 locked = mtx_owned(&sc->sc_mtx); 436 if (!locked) 437 RUE_LOCK(sc); 438 439 RUE_CLRBIT(sc, RUE_CR, (RUE_CR_RE | RUE_CR_TE)); 440 441 bmcr = rue_csr_read_2(sc, RUE_BMCR); 442 443 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_100_TX) 444 bmcr |= RUE_BMCR_SPD_SET; 445 else 446 bmcr &= ~RUE_BMCR_SPD_SET; 447 448 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 449 bmcr |= RUE_BMCR_DUPLEX; 450 else 451 bmcr &= ~RUE_BMCR_DUPLEX; 452 453 rue_csr_write_2(sc, RUE_BMCR, bmcr); 454 455 RUE_SETBIT(sc, RUE_CR, (RUE_CR_RE | RUE_CR_TE)); 456 457 if (!locked) 458 RUE_UNLOCK(sc); 459 #endif 460 } 461 462 static void 463 rue_setpromisc(struct usb_ether *ue) 464 { 465 struct rue_softc *sc = uether_getsc(ue); 466 struct ifnet *ifp = uether_getifp(ue); 467 468 RUE_LOCK_ASSERT(sc, MA_OWNED); 469 470 /* If we want promiscuous mode, set the allframes bit. */ 471 if (ifp->if_flags & IFF_PROMISC) 472 RUE_SETBIT(sc, RUE_RCR, RUE_RCR_AAP); 473 else 474 RUE_CLRBIT(sc, RUE_RCR, RUE_RCR_AAP); 475 } 476 477 static u_int 478 rue_hash_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt) 479 { 480 uint32_t *hashes = arg; 481 int h; 482 483 h = ether_crc32_be(LLADDR(sdl), ETHER_ADDR_LEN) >> 26; 484 if (h < 32) 485 hashes[0] |= (1 << h); 486 else 487 hashes[1] |= (1 << (h - 32)); 488 489 return (1); 490 } 491 492 /* 493 * Program the 64-bit multicast hash filter. 494 */ 495 static void 496 rue_setmulti(struct usb_ether *ue) 497 { 498 struct rue_softc *sc = uether_getsc(ue); 499 struct ifnet *ifp = uether_getifp(ue); 500 uint16_t rxcfg; 501 uint32_t hashes[2] = { 0, 0 }; 502 int mcnt; 503 504 RUE_LOCK_ASSERT(sc, MA_OWNED); 505 506 rxcfg = rue_csr_read_2(sc, RUE_RCR); 507 508 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 509 rxcfg |= (RUE_RCR_AAM | RUE_RCR_AAP); 510 rxcfg &= ~RUE_RCR_AM; 511 rue_csr_write_2(sc, RUE_RCR, rxcfg); 512 rue_csr_write_4(sc, RUE_MAR0, 0xFFFFFFFF); 513 rue_csr_write_4(sc, RUE_MAR4, 0xFFFFFFFF); 514 return; 515 } 516 517 /* first, zot all the existing hash bits */ 518 rue_csr_write_4(sc, RUE_MAR0, 0); 519 rue_csr_write_4(sc, RUE_MAR4, 0); 520 521 /* now program new ones */ 522 mcnt = if_foreach_llmaddr(ifp, rue_hash_maddr, &hashes); 523 524 if (mcnt) 525 rxcfg |= RUE_RCR_AM; 526 else 527 rxcfg &= ~RUE_RCR_AM; 528 529 rxcfg &= ~(RUE_RCR_AAM | RUE_RCR_AAP); 530 531 rue_csr_write_2(sc, RUE_RCR, rxcfg); 532 rue_csr_write_4(sc, RUE_MAR0, hashes[0]); 533 rue_csr_write_4(sc, RUE_MAR4, hashes[1]); 534 } 535 536 static void 537 rue_reset(struct rue_softc *sc) 538 { 539 int i; 540 541 rue_csr_write_1(sc, RUE_CR, RUE_CR_SOFT_RST); 542 543 for (i = 0; i != RUE_TIMEOUT; i++) { 544 if (uether_pause(&sc->sc_ue, hz / 1000)) 545 break; 546 if (!(rue_csr_read_1(sc, RUE_CR) & RUE_CR_SOFT_RST)) 547 break; 548 } 549 if (i == RUE_TIMEOUT) 550 device_printf(sc->sc_ue.ue_dev, "reset never completed\n"); 551 552 uether_pause(&sc->sc_ue, hz / 100); 553 } 554 555 static void 556 rue_attach_post(struct usb_ether *ue) 557 { 558 struct rue_softc *sc = uether_getsc(ue); 559 560 /* reset the adapter */ 561 rue_reset(sc); 562 563 /* get station address from the EEPROM */ 564 rue_read_mem(sc, RUE_EEPROM_IDR0, ue->ue_eaddr, ETHER_ADDR_LEN); 565 } 566 567 /* 568 * Probe for a RTL8150 chip. 569 */ 570 static int 571 rue_probe(device_t dev) 572 { 573 struct usb_attach_arg *uaa = device_get_ivars(dev); 574 575 if (uaa->usb_mode != USB_MODE_HOST) 576 return (ENXIO); 577 if (uaa->info.bConfigIndex != RUE_CONFIG_IDX) 578 return (ENXIO); 579 if (uaa->info.bIfaceIndex != RUE_IFACE_IDX) 580 return (ENXIO); 581 582 return (usbd_lookup_id_by_uaa(rue_devs, sizeof(rue_devs), uaa)); 583 } 584 585 /* 586 * Attach the interface. Allocate softc structures, do ifmedia 587 * setup and ethernet/BPF attach. 588 */ 589 static int 590 rue_attach(device_t dev) 591 { 592 struct usb_attach_arg *uaa = device_get_ivars(dev); 593 struct rue_softc *sc = device_get_softc(dev); 594 struct usb_ether *ue = &sc->sc_ue; 595 uint8_t iface_index; 596 int error; 597 598 device_set_usb_desc(dev); 599 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 600 601 iface_index = RUE_IFACE_IDX; 602 error = usbd_transfer_setup(uaa->device, &iface_index, 603 sc->sc_xfer, rue_config, RUE_N_TRANSFER, 604 sc, &sc->sc_mtx); 605 if (error) { 606 device_printf(dev, "allocating USB transfers failed\n"); 607 goto detach; 608 } 609 610 ue->ue_sc = sc; 611 ue->ue_dev = dev; 612 ue->ue_udev = uaa->device; 613 ue->ue_mtx = &sc->sc_mtx; 614 ue->ue_methods = &rue_ue_methods; 615 616 error = uether_ifattach(ue); 617 if (error) { 618 device_printf(dev, "could not attach interface\n"); 619 goto detach; 620 } 621 return (0); /* success */ 622 623 detach: 624 rue_detach(dev); 625 return (ENXIO); /* failure */ 626 } 627 628 static int 629 rue_detach(device_t dev) 630 { 631 struct rue_softc *sc = device_get_softc(dev); 632 struct usb_ether *ue = &sc->sc_ue; 633 634 usbd_transfer_unsetup(sc->sc_xfer, RUE_N_TRANSFER); 635 uether_ifdetach(ue); 636 mtx_destroy(&sc->sc_mtx); 637 638 return (0); 639 } 640 641 static void 642 rue_intr_callback(struct usb_xfer *xfer, usb_error_t error) 643 { 644 struct rue_softc *sc = usbd_xfer_softc(xfer); 645 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 646 struct rue_intrpkt pkt; 647 struct usb_page_cache *pc; 648 int actlen; 649 650 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 651 652 switch (USB_GET_STATE(xfer)) { 653 case USB_ST_TRANSFERRED: 654 655 if (ifp && (ifp->if_drv_flags & IFF_DRV_RUNNING) && 656 actlen >= (int)sizeof(pkt)) { 657 658 pc = usbd_xfer_get_frame(xfer, 0); 659 usbd_copy_out(pc, 0, &pkt, sizeof(pkt)); 660 661 if_inc_counter(ifp, IFCOUNTER_IERRORS, pkt.rue_rxlost_cnt); 662 if_inc_counter(ifp, IFCOUNTER_IERRORS, pkt.rue_crcerr_cnt); 663 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, pkt.rue_col_cnt); 664 } 665 /* FALLTHROUGH */ 666 case USB_ST_SETUP: 667 tr_setup: 668 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 669 usbd_transfer_submit(xfer); 670 return; 671 672 default: /* Error */ 673 if (error != USB_ERR_CANCELLED) { 674 /* try to clear stall first */ 675 usbd_xfer_set_stall(xfer); 676 goto tr_setup; 677 } 678 return; 679 } 680 } 681 682 static void 683 rue_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 684 { 685 struct rue_softc *sc = usbd_xfer_softc(xfer); 686 struct usb_ether *ue = &sc->sc_ue; 687 struct ifnet *ifp = uether_getifp(ue); 688 struct usb_page_cache *pc; 689 uint16_t status; 690 int actlen; 691 692 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 693 694 switch (USB_GET_STATE(xfer)) { 695 case USB_ST_TRANSFERRED: 696 697 if (actlen < 4) { 698 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 699 goto tr_setup; 700 } 701 pc = usbd_xfer_get_frame(xfer, 0); 702 usbd_copy_out(pc, actlen - 4, &status, sizeof(status)); 703 actlen -= 4; 704 705 /* check receive packet was valid or not */ 706 status = le16toh(status); 707 if ((status & RUE_RXSTAT_VALID) == 0) { 708 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 709 goto tr_setup; 710 } 711 uether_rxbuf(ue, pc, 0, actlen); 712 /* FALLTHROUGH */ 713 case USB_ST_SETUP: 714 tr_setup: 715 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 716 usbd_transfer_submit(xfer); 717 uether_rxflush(ue); 718 return; 719 720 default: /* Error */ 721 DPRINTF("bulk read error, %s\n", 722 usbd_errstr(error)); 723 724 if (error != USB_ERR_CANCELLED) { 725 /* try to clear stall first */ 726 usbd_xfer_set_stall(xfer); 727 goto tr_setup; 728 } 729 return; 730 } 731 } 732 733 static void 734 rue_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 735 { 736 struct rue_softc *sc = usbd_xfer_softc(xfer); 737 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 738 struct usb_page_cache *pc; 739 struct mbuf *m; 740 int temp_len; 741 742 switch (USB_GET_STATE(xfer)) { 743 case USB_ST_TRANSFERRED: 744 DPRINTFN(11, "transfer complete\n"); 745 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 746 747 /* FALLTHROUGH */ 748 case USB_ST_SETUP: 749 tr_setup: 750 if ((sc->sc_flags & RUE_FLAG_LINK) == 0) { 751 /* 752 * don't send anything if there is no link ! 753 */ 754 return; 755 } 756 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 757 758 if (m == NULL) 759 return; 760 if (m->m_pkthdr.len > MCLBYTES) 761 m->m_pkthdr.len = MCLBYTES; 762 temp_len = m->m_pkthdr.len; 763 764 pc = usbd_xfer_get_frame(xfer, 0); 765 usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len); 766 767 /* 768 * This is an undocumented behavior. 769 * RTL8150 chip doesn't send frame length smaller than 770 * RUE_MIN_FRAMELEN (60) byte packet. 771 */ 772 if (temp_len < RUE_MIN_FRAMELEN) { 773 usbd_frame_zero(pc, temp_len, 774 RUE_MIN_FRAMELEN - temp_len); 775 temp_len = RUE_MIN_FRAMELEN; 776 } 777 usbd_xfer_set_frame_len(xfer, 0, temp_len); 778 779 /* 780 * if there's a BPF listener, bounce a copy 781 * of this frame to him: 782 */ 783 BPF_MTAP(ifp, m); 784 785 m_freem(m); 786 787 usbd_transfer_submit(xfer); 788 789 return; 790 791 default: /* Error */ 792 DPRINTFN(11, "transfer error, %s\n", 793 usbd_errstr(error)); 794 795 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 796 797 if (error != USB_ERR_CANCELLED) { 798 /* try to clear stall first */ 799 usbd_xfer_set_stall(xfer); 800 goto tr_setup; 801 } 802 return; 803 } 804 } 805 806 static void 807 rue_tick(struct usb_ether *ue) 808 { 809 struct rue_softc *sc = uether_getsc(ue); 810 struct mii_data *mii = GET_MII(sc); 811 812 RUE_LOCK_ASSERT(sc, MA_OWNED); 813 814 mii_tick(mii); 815 if ((sc->sc_flags & RUE_FLAG_LINK) == 0 816 && mii->mii_media_status & IFM_ACTIVE && 817 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 818 sc->sc_flags |= RUE_FLAG_LINK; 819 rue_start(ue); 820 } 821 } 822 823 static void 824 rue_start(struct usb_ether *ue) 825 { 826 struct rue_softc *sc = uether_getsc(ue); 827 828 /* 829 * start the USB transfers, if not already started: 830 */ 831 usbd_transfer_start(sc->sc_xfer[RUE_INTR_DT_RD]); 832 usbd_transfer_start(sc->sc_xfer[RUE_BULK_DT_RD]); 833 usbd_transfer_start(sc->sc_xfer[RUE_BULK_DT_WR]); 834 } 835 836 static void 837 rue_init(struct usb_ether *ue) 838 { 839 struct rue_softc *sc = uether_getsc(ue); 840 struct ifnet *ifp = uether_getifp(ue); 841 842 RUE_LOCK_ASSERT(sc, MA_OWNED); 843 844 /* 845 * Cancel pending I/O 846 */ 847 rue_reset(sc); 848 849 /* Set MAC address */ 850 rue_write_mem(sc, RUE_IDR0, IF_LLADDR(ifp), ETHER_ADDR_LEN); 851 852 rue_stop(ue); 853 854 /* 855 * Set the initial TX and RX configuration. 856 */ 857 rue_csr_write_1(sc, RUE_TCR, RUE_TCR_CONFIG); 858 rue_csr_write_2(sc, RUE_RCR, RUE_RCR_CONFIG|RUE_RCR_AB); 859 860 /* Load the multicast filter */ 861 rue_setpromisc(ue); 862 /* Load the multicast filter. */ 863 rue_setmulti(ue); 864 865 /* Enable RX and TX */ 866 rue_csr_write_1(sc, RUE_CR, (RUE_CR_TE | RUE_CR_RE | RUE_CR_EP3CLREN)); 867 868 usbd_xfer_set_stall(sc->sc_xfer[RUE_BULK_DT_WR]); 869 870 ifp->if_drv_flags |= IFF_DRV_RUNNING; 871 rue_start(ue); 872 } 873 874 /* 875 * Set media options. 876 */ 877 static int 878 rue_ifmedia_upd(struct ifnet *ifp) 879 { 880 struct rue_softc *sc = ifp->if_softc; 881 struct mii_data *mii = GET_MII(sc); 882 struct mii_softc *miisc; 883 int error; 884 885 RUE_LOCK_ASSERT(sc, MA_OWNED); 886 887 sc->sc_flags &= ~RUE_FLAG_LINK; 888 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 889 PHY_RESET(miisc); 890 error = mii_mediachg(mii); 891 return (error); 892 } 893 894 /* 895 * Report current media status. 896 */ 897 static void 898 rue_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 899 { 900 struct rue_softc *sc = ifp->if_softc; 901 struct mii_data *mii = GET_MII(sc); 902 903 RUE_LOCK(sc); 904 mii_pollstat(mii); 905 ifmr->ifm_active = mii->mii_media_active; 906 ifmr->ifm_status = mii->mii_media_status; 907 RUE_UNLOCK(sc); 908 } 909 910 static void 911 rue_stop(struct usb_ether *ue) 912 { 913 struct rue_softc *sc = uether_getsc(ue); 914 struct ifnet *ifp = uether_getifp(ue); 915 916 RUE_LOCK_ASSERT(sc, MA_OWNED); 917 918 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 919 sc->sc_flags &= ~RUE_FLAG_LINK; 920 921 /* 922 * stop all the transfers, if not already stopped: 923 */ 924 usbd_transfer_stop(sc->sc_xfer[RUE_BULK_DT_WR]); 925 usbd_transfer_stop(sc->sc_xfer[RUE_BULK_DT_RD]); 926 usbd_transfer_stop(sc->sc_xfer[RUE_INTR_DT_RD]); 927 928 rue_csr_write_1(sc, RUE_CR, 0x00); 929 930 rue_reset(sc); 931 } 932