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 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(if_t); 162 static void rue_ifmedia_sts(if_t, struct ifmediareq *); 163 164 static const struct usb_config rue_config[RUE_N_TRANSFER] = { 165 [RUE_BULK_DT_WR] = { 166 .type = UE_BULK, 167 .endpoint = UE_ADDR_ANY, 168 .direction = UE_DIR_OUT, 169 .bufsize = MCLBYTES, 170 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 171 .callback = rue_bulk_write_callback, 172 .timeout = 10000, /* 10 seconds */ 173 }, 174 175 [RUE_BULK_DT_RD] = { 176 .type = UE_BULK, 177 .endpoint = UE_ADDR_ANY, 178 .direction = UE_DIR_IN, 179 .bufsize = (MCLBYTES + 4), 180 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 181 .callback = rue_bulk_read_callback, 182 .timeout = 0, /* no timeout */ 183 }, 184 185 [RUE_INTR_DT_RD] = { 186 .type = UE_INTERRUPT, 187 .endpoint = UE_ADDR_ANY, 188 .direction = UE_DIR_IN, 189 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 190 .bufsize = 0, /* use wMaxPacketSize */ 191 .callback = rue_intr_callback, 192 }, 193 }; 194 195 static device_method_t rue_methods[] = { 196 /* Device interface */ 197 DEVMETHOD(device_probe, rue_probe), 198 DEVMETHOD(device_attach, rue_attach), 199 DEVMETHOD(device_detach, rue_detach), 200 201 /* MII interface */ 202 DEVMETHOD(miibus_readreg, rue_miibus_readreg), 203 DEVMETHOD(miibus_writereg, rue_miibus_writereg), 204 DEVMETHOD(miibus_statchg, rue_miibus_statchg), 205 206 DEVMETHOD_END 207 }; 208 209 static driver_t rue_driver = { 210 .name = "rue", 211 .methods = rue_methods, 212 .size = sizeof(struct rue_softc), 213 }; 214 215 DRIVER_MODULE_ORDERED(rue, uhub, rue_driver, NULL, NULL, SI_ORDER_ANY); 216 DRIVER_MODULE(miibus, rue, miibus_driver, NULL, NULL); 217 MODULE_DEPEND(rue, uether, 1, 1, 1); 218 MODULE_DEPEND(rue, usb, 1, 1, 1); 219 MODULE_DEPEND(rue, ether, 1, 1, 1); 220 MODULE_DEPEND(rue, miibus, 1, 1, 1); 221 MODULE_VERSION(rue, 1); 222 USB_PNP_HOST_INFO(rue_devs); 223 224 static const struct usb_ether_methods rue_ue_methods = { 225 .ue_attach_post = rue_attach_post, 226 .ue_start = rue_start, 227 .ue_init = rue_init, 228 .ue_stop = rue_stop, 229 .ue_tick = rue_tick, 230 .ue_setmulti = rue_setmulti, 231 .ue_setpromisc = rue_setpromisc, 232 .ue_mii_upd = rue_ifmedia_upd, 233 .ue_mii_sts = rue_ifmedia_sts, 234 }; 235 236 #define RUE_SETBIT(sc, reg, x) \ 237 rue_csr_write_1(sc, reg, rue_csr_read_1(sc, reg) | (x)) 238 239 #define RUE_CLRBIT(sc, reg, x) \ 240 rue_csr_write_1(sc, reg, rue_csr_read_1(sc, reg) & ~(x)) 241 242 static int 243 rue_read_mem(struct rue_softc *sc, uint16_t addr, void *buf, int len) 244 { 245 struct usb_device_request req; 246 247 req.bmRequestType = UT_READ_VENDOR_DEVICE; 248 req.bRequest = UR_SET_ADDRESS; 249 USETW(req.wValue, addr); 250 USETW(req.wIndex, 0); 251 USETW(req.wLength, len); 252 253 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 254 } 255 256 static int 257 rue_write_mem(struct rue_softc *sc, uint16_t addr, void *buf, int len) 258 { 259 struct usb_device_request req; 260 261 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 262 req.bRequest = UR_SET_ADDRESS; 263 USETW(req.wValue, addr); 264 USETW(req.wIndex, 0); 265 USETW(req.wLength, len); 266 267 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 268 } 269 270 static uint8_t 271 rue_csr_read_1(struct rue_softc *sc, uint16_t reg) 272 { 273 uint8_t val; 274 275 rue_read_mem(sc, reg, &val, 1); 276 return (val); 277 } 278 279 static uint16_t 280 rue_csr_read_2(struct rue_softc *sc, uint16_t reg) 281 { 282 uint8_t val[2]; 283 284 rue_read_mem(sc, reg, &val, 2); 285 return (UGETW(val)); 286 } 287 288 static int 289 rue_csr_write_1(struct rue_softc *sc, uint16_t reg, uint8_t val) 290 { 291 return (rue_write_mem(sc, reg, &val, 1)); 292 } 293 294 static int 295 rue_csr_write_2(struct rue_softc *sc, uint16_t reg, uint16_t val) 296 { 297 uint8_t temp[2]; 298 299 USETW(temp, val); 300 return (rue_write_mem(sc, reg, &temp, 2)); 301 } 302 303 static int 304 rue_csr_write_4(struct rue_softc *sc, int reg, uint32_t val) 305 { 306 uint8_t temp[4]; 307 308 USETDW(temp, val); 309 return (rue_write_mem(sc, reg, &temp, 4)); 310 } 311 312 static int 313 rue_miibus_readreg(device_t dev, int phy, int reg) 314 { 315 struct rue_softc *sc = device_get_softc(dev); 316 uint16_t rval; 317 uint16_t ruereg; 318 int locked; 319 320 if (phy != 0) /* RTL8150 supports PHY == 0, only */ 321 return (0); 322 323 locked = mtx_owned(&sc->sc_mtx); 324 if (!locked) 325 RUE_LOCK(sc); 326 327 switch (reg) { 328 case MII_BMCR: 329 ruereg = RUE_BMCR; 330 break; 331 case MII_BMSR: 332 ruereg = RUE_BMSR; 333 break; 334 case MII_ANAR: 335 ruereg = RUE_ANAR; 336 break; 337 case MII_ANER: 338 ruereg = RUE_AER; 339 break; 340 case MII_ANLPAR: 341 ruereg = RUE_ANLP; 342 break; 343 case MII_PHYIDR1: 344 case MII_PHYIDR2: 345 rval = 0; 346 goto done; 347 default: 348 if (RUE_REG_MIN <= reg && reg <= RUE_REG_MAX) { 349 rval = rue_csr_read_1(sc, reg); 350 goto done; 351 } 352 device_printf(sc->sc_ue.ue_dev, "bad phy register\n"); 353 rval = 0; 354 goto done; 355 } 356 357 rval = rue_csr_read_2(sc, ruereg); 358 done: 359 if (!locked) 360 RUE_UNLOCK(sc); 361 return (rval); 362 } 363 364 static int 365 rue_miibus_writereg(device_t dev, int phy, int reg, int data) 366 { 367 struct rue_softc *sc = device_get_softc(dev); 368 uint16_t ruereg; 369 int locked; 370 371 if (phy != 0) /* RTL8150 supports PHY == 0, only */ 372 return (0); 373 374 locked = mtx_owned(&sc->sc_mtx); 375 if (!locked) 376 RUE_LOCK(sc); 377 378 switch (reg) { 379 case MII_BMCR: 380 ruereg = RUE_BMCR; 381 break; 382 case MII_BMSR: 383 ruereg = RUE_BMSR; 384 break; 385 case MII_ANAR: 386 ruereg = RUE_ANAR; 387 break; 388 case MII_ANER: 389 ruereg = RUE_AER; 390 break; 391 case MII_ANLPAR: 392 ruereg = RUE_ANLP; 393 break; 394 case MII_PHYIDR1: 395 case MII_PHYIDR2: 396 goto done; 397 default: 398 if (RUE_REG_MIN <= reg && reg <= RUE_REG_MAX) { 399 rue_csr_write_1(sc, reg, data); 400 goto done; 401 } 402 device_printf(sc->sc_ue.ue_dev, " bad phy register\n"); 403 goto done; 404 } 405 rue_csr_write_2(sc, ruereg, data); 406 done: 407 if (!locked) 408 RUE_UNLOCK(sc); 409 return (0); 410 } 411 412 static void 413 rue_miibus_statchg(device_t dev) 414 { 415 /* 416 * When the code below is enabled the card starts doing weird 417 * things after link going from UP to DOWN and back UP. 418 * 419 * Looks like some of register writes below messes up PHY 420 * interface. 421 * 422 * No visible regressions were found after commenting this code 423 * out, so that disable it for good. 424 */ 425 #if 0 426 struct rue_softc *sc = device_get_softc(dev); 427 struct mii_data *mii = GET_MII(sc); 428 uint16_t bmcr; 429 int locked; 430 431 locked = mtx_owned(&sc->sc_mtx); 432 if (!locked) 433 RUE_LOCK(sc); 434 435 RUE_CLRBIT(sc, RUE_CR, (RUE_CR_RE | RUE_CR_TE)); 436 437 bmcr = rue_csr_read_2(sc, RUE_BMCR); 438 439 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_100_TX) 440 bmcr |= RUE_BMCR_SPD_SET; 441 else 442 bmcr &= ~RUE_BMCR_SPD_SET; 443 444 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 445 bmcr |= RUE_BMCR_DUPLEX; 446 else 447 bmcr &= ~RUE_BMCR_DUPLEX; 448 449 rue_csr_write_2(sc, RUE_BMCR, bmcr); 450 451 RUE_SETBIT(sc, RUE_CR, (RUE_CR_RE | RUE_CR_TE)); 452 453 if (!locked) 454 RUE_UNLOCK(sc); 455 #endif 456 } 457 458 static void 459 rue_setpromisc(struct usb_ether *ue) 460 { 461 struct rue_softc *sc = uether_getsc(ue); 462 if_t ifp = uether_getifp(ue); 463 464 RUE_LOCK_ASSERT(sc, MA_OWNED); 465 466 /* If we want promiscuous mode, set the allframes bit. */ 467 if (if_getflags(ifp) & IFF_PROMISC) 468 RUE_SETBIT(sc, RUE_RCR, RUE_RCR_AAP); 469 else 470 RUE_CLRBIT(sc, RUE_RCR, RUE_RCR_AAP); 471 } 472 473 static u_int 474 rue_hash_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt) 475 { 476 uint32_t *hashes = arg; 477 int h; 478 479 h = ether_crc32_be(LLADDR(sdl), ETHER_ADDR_LEN) >> 26; 480 if (h < 32) 481 hashes[0] |= (1 << h); 482 else 483 hashes[1] |= (1 << (h - 32)); 484 485 return (1); 486 } 487 488 /* 489 * Program the 64-bit multicast hash filter. 490 */ 491 static void 492 rue_setmulti(struct usb_ether *ue) 493 { 494 struct rue_softc *sc = uether_getsc(ue); 495 if_t ifp = uether_getifp(ue); 496 uint16_t rxcfg; 497 uint32_t hashes[2] = { 0, 0 }; 498 int mcnt; 499 500 RUE_LOCK_ASSERT(sc, MA_OWNED); 501 502 rxcfg = rue_csr_read_2(sc, RUE_RCR); 503 504 if (if_getflags(ifp) & IFF_ALLMULTI || if_getflags(ifp) & IFF_PROMISC) { 505 rxcfg |= (RUE_RCR_AAM | RUE_RCR_AAP); 506 rxcfg &= ~RUE_RCR_AM; 507 rue_csr_write_2(sc, RUE_RCR, rxcfg); 508 rue_csr_write_4(sc, RUE_MAR0, 0xFFFFFFFF); 509 rue_csr_write_4(sc, RUE_MAR4, 0xFFFFFFFF); 510 return; 511 } 512 513 /* first, zot all the existing hash bits */ 514 rue_csr_write_4(sc, RUE_MAR0, 0); 515 rue_csr_write_4(sc, RUE_MAR4, 0); 516 517 /* now program new ones */ 518 mcnt = if_foreach_llmaddr(ifp, rue_hash_maddr, &hashes); 519 520 if (mcnt) 521 rxcfg |= RUE_RCR_AM; 522 else 523 rxcfg &= ~RUE_RCR_AM; 524 525 rxcfg &= ~(RUE_RCR_AAM | RUE_RCR_AAP); 526 527 rue_csr_write_2(sc, RUE_RCR, rxcfg); 528 rue_csr_write_4(sc, RUE_MAR0, hashes[0]); 529 rue_csr_write_4(sc, RUE_MAR4, hashes[1]); 530 } 531 532 static void 533 rue_reset(struct rue_softc *sc) 534 { 535 int i; 536 537 rue_csr_write_1(sc, RUE_CR, RUE_CR_SOFT_RST); 538 539 for (i = 0; i != RUE_TIMEOUT; i++) { 540 if (uether_pause(&sc->sc_ue, hz / 1000)) 541 break; 542 if (!(rue_csr_read_1(sc, RUE_CR) & RUE_CR_SOFT_RST)) 543 break; 544 } 545 if (i == RUE_TIMEOUT) 546 device_printf(sc->sc_ue.ue_dev, "reset never completed\n"); 547 548 uether_pause(&sc->sc_ue, hz / 100); 549 } 550 551 static void 552 rue_attach_post(struct usb_ether *ue) 553 { 554 struct rue_softc *sc = uether_getsc(ue); 555 556 /* reset the adapter */ 557 rue_reset(sc); 558 559 /* get station address from the EEPROM */ 560 rue_read_mem(sc, RUE_EEPROM_IDR0, ue->ue_eaddr, ETHER_ADDR_LEN); 561 } 562 563 /* 564 * Probe for a RTL8150 chip. 565 */ 566 static int 567 rue_probe(device_t dev) 568 { 569 struct usb_attach_arg *uaa = device_get_ivars(dev); 570 571 if (uaa->usb_mode != USB_MODE_HOST) 572 return (ENXIO); 573 if (uaa->info.bConfigIndex != RUE_CONFIG_IDX) 574 return (ENXIO); 575 if (uaa->info.bIfaceIndex != RUE_IFACE_IDX) 576 return (ENXIO); 577 578 return (usbd_lookup_id_by_uaa(rue_devs, sizeof(rue_devs), uaa)); 579 } 580 581 /* 582 * Attach the interface. Allocate softc structures, do ifmedia 583 * setup and ethernet/BPF attach. 584 */ 585 static int 586 rue_attach(device_t dev) 587 { 588 struct usb_attach_arg *uaa = device_get_ivars(dev); 589 struct rue_softc *sc = device_get_softc(dev); 590 struct usb_ether *ue = &sc->sc_ue; 591 uint8_t iface_index; 592 int error; 593 594 device_set_usb_desc(dev); 595 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 596 597 iface_index = RUE_IFACE_IDX; 598 error = usbd_transfer_setup(uaa->device, &iface_index, 599 sc->sc_xfer, rue_config, RUE_N_TRANSFER, 600 sc, &sc->sc_mtx); 601 if (error) { 602 device_printf(dev, "allocating USB transfers failed\n"); 603 goto detach; 604 } 605 606 ue->ue_sc = sc; 607 ue->ue_dev = dev; 608 ue->ue_udev = uaa->device; 609 ue->ue_mtx = &sc->sc_mtx; 610 ue->ue_methods = &rue_ue_methods; 611 612 error = uether_ifattach(ue); 613 if (error) { 614 device_printf(dev, "could not attach interface\n"); 615 goto detach; 616 } 617 return (0); /* success */ 618 619 detach: 620 rue_detach(dev); 621 return (ENXIO); /* failure */ 622 } 623 624 static int 625 rue_detach(device_t dev) 626 { 627 struct rue_softc *sc = device_get_softc(dev); 628 struct usb_ether *ue = &sc->sc_ue; 629 630 usbd_transfer_unsetup(sc->sc_xfer, RUE_N_TRANSFER); 631 uether_ifdetach(ue); 632 mtx_destroy(&sc->sc_mtx); 633 634 return (0); 635 } 636 637 static void 638 rue_intr_callback(struct usb_xfer *xfer, usb_error_t error) 639 { 640 struct rue_softc *sc = usbd_xfer_softc(xfer); 641 if_t ifp = uether_getifp(&sc->sc_ue); 642 struct rue_intrpkt pkt; 643 struct usb_page_cache *pc; 644 int actlen; 645 646 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 647 648 switch (USB_GET_STATE(xfer)) { 649 case USB_ST_TRANSFERRED: 650 651 if (ifp && (if_getdrvflags(ifp) & IFF_DRV_RUNNING) && 652 actlen >= (int)sizeof(pkt)) { 653 pc = usbd_xfer_get_frame(xfer, 0); 654 usbd_copy_out(pc, 0, &pkt, sizeof(pkt)); 655 656 if_inc_counter(ifp, IFCOUNTER_IERRORS, pkt.rue_rxlost_cnt); 657 if_inc_counter(ifp, IFCOUNTER_IERRORS, pkt.rue_crcerr_cnt); 658 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, pkt.rue_col_cnt); 659 } 660 /* FALLTHROUGH */ 661 case USB_ST_SETUP: 662 tr_setup: 663 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 664 usbd_transfer_submit(xfer); 665 return; 666 667 default: /* Error */ 668 if (error != USB_ERR_CANCELLED) { 669 /* try to clear stall first */ 670 usbd_xfer_set_stall(xfer); 671 goto tr_setup; 672 } 673 return; 674 } 675 } 676 677 static void 678 rue_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 679 { 680 struct rue_softc *sc = usbd_xfer_softc(xfer); 681 struct usb_ether *ue = &sc->sc_ue; 682 if_t ifp = uether_getifp(ue); 683 struct usb_page_cache *pc; 684 uint16_t status; 685 int actlen; 686 687 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 688 689 switch (USB_GET_STATE(xfer)) { 690 case USB_ST_TRANSFERRED: 691 692 if (actlen < 4) { 693 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 694 goto tr_setup; 695 } 696 pc = usbd_xfer_get_frame(xfer, 0); 697 usbd_copy_out(pc, actlen - 4, &status, sizeof(status)); 698 actlen -= 4; 699 700 /* check receive packet was valid or not */ 701 status = le16toh(status); 702 if ((status & RUE_RXSTAT_VALID) == 0) { 703 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 704 goto tr_setup; 705 } 706 uether_rxbuf(ue, pc, 0, actlen); 707 /* FALLTHROUGH */ 708 case USB_ST_SETUP: 709 tr_setup: 710 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 711 usbd_transfer_submit(xfer); 712 uether_rxflush(ue); 713 return; 714 715 default: /* Error */ 716 DPRINTF("bulk read error, %s\n", 717 usbd_errstr(error)); 718 719 if (error != USB_ERR_CANCELLED) { 720 /* try to clear stall first */ 721 usbd_xfer_set_stall(xfer); 722 goto tr_setup; 723 } 724 return; 725 } 726 } 727 728 static void 729 rue_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 730 { 731 struct rue_softc *sc = usbd_xfer_softc(xfer); 732 if_t ifp = uether_getifp(&sc->sc_ue); 733 struct usb_page_cache *pc; 734 struct mbuf *m; 735 int temp_len; 736 737 switch (USB_GET_STATE(xfer)) { 738 case USB_ST_TRANSFERRED: 739 DPRINTFN(11, "transfer complete\n"); 740 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 741 742 /* FALLTHROUGH */ 743 case USB_ST_SETUP: 744 tr_setup: 745 if ((sc->sc_flags & RUE_FLAG_LINK) == 0) { 746 /* 747 * don't send anything if there is no link ! 748 */ 749 return; 750 } 751 m = if_dequeue(ifp); 752 753 if (m == NULL) 754 return; 755 if (m->m_pkthdr.len > MCLBYTES) 756 m->m_pkthdr.len = MCLBYTES; 757 temp_len = m->m_pkthdr.len; 758 759 pc = usbd_xfer_get_frame(xfer, 0); 760 usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len); 761 762 /* 763 * This is an undocumented behavior. 764 * RTL8150 chip doesn't send frame length smaller than 765 * RUE_MIN_FRAMELEN (60) byte packet. 766 */ 767 if (temp_len < RUE_MIN_FRAMELEN) { 768 usbd_frame_zero(pc, temp_len, 769 RUE_MIN_FRAMELEN - temp_len); 770 temp_len = RUE_MIN_FRAMELEN; 771 } 772 usbd_xfer_set_frame_len(xfer, 0, temp_len); 773 774 /* 775 * if there's a BPF listener, bounce a copy 776 * of this frame to him: 777 */ 778 BPF_MTAP(ifp, m); 779 780 m_freem(m); 781 782 usbd_transfer_submit(xfer); 783 784 return; 785 786 default: /* Error */ 787 DPRINTFN(11, "transfer error, %s\n", 788 usbd_errstr(error)); 789 790 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 791 792 if (error != USB_ERR_CANCELLED) { 793 /* try to clear stall first */ 794 usbd_xfer_set_stall(xfer); 795 goto tr_setup; 796 } 797 return; 798 } 799 } 800 801 static void 802 rue_tick(struct usb_ether *ue) 803 { 804 struct rue_softc *sc = uether_getsc(ue); 805 struct mii_data *mii = GET_MII(sc); 806 807 RUE_LOCK_ASSERT(sc, MA_OWNED); 808 809 mii_tick(mii); 810 if ((sc->sc_flags & RUE_FLAG_LINK) == 0 811 && mii->mii_media_status & IFM_ACTIVE && 812 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 813 sc->sc_flags |= RUE_FLAG_LINK; 814 rue_start(ue); 815 } 816 } 817 818 static void 819 rue_start(struct usb_ether *ue) 820 { 821 struct rue_softc *sc = uether_getsc(ue); 822 823 /* 824 * start the USB transfers, if not already started: 825 */ 826 usbd_transfer_start(sc->sc_xfer[RUE_INTR_DT_RD]); 827 usbd_transfer_start(sc->sc_xfer[RUE_BULK_DT_RD]); 828 usbd_transfer_start(sc->sc_xfer[RUE_BULK_DT_WR]); 829 } 830 831 static void 832 rue_init(struct usb_ether *ue) 833 { 834 struct rue_softc *sc = uether_getsc(ue); 835 if_t ifp = uether_getifp(ue); 836 837 RUE_LOCK_ASSERT(sc, MA_OWNED); 838 839 /* 840 * Cancel pending I/O 841 */ 842 rue_reset(sc); 843 844 /* Set MAC address */ 845 rue_write_mem(sc, RUE_IDR0, if_getlladdr(ifp), ETHER_ADDR_LEN); 846 847 rue_stop(ue); 848 849 /* 850 * Set the initial TX and RX configuration. 851 */ 852 rue_csr_write_1(sc, RUE_TCR, RUE_TCR_CONFIG); 853 rue_csr_write_2(sc, RUE_RCR, RUE_RCR_CONFIG|RUE_RCR_AB); 854 855 /* Load the multicast filter */ 856 rue_setpromisc(ue); 857 /* Load the multicast filter. */ 858 rue_setmulti(ue); 859 860 /* Enable RX and TX */ 861 rue_csr_write_1(sc, RUE_CR, (RUE_CR_TE | RUE_CR_RE | RUE_CR_EP3CLREN)); 862 863 usbd_xfer_set_stall(sc->sc_xfer[RUE_BULK_DT_WR]); 864 865 if_setdrvflagbits(ifp, IFF_DRV_RUNNING, 0); 866 rue_start(ue); 867 } 868 869 /* 870 * Set media options. 871 */ 872 static int 873 rue_ifmedia_upd(if_t ifp) 874 { 875 struct rue_softc *sc = if_getsoftc(ifp); 876 struct mii_data *mii = GET_MII(sc); 877 struct mii_softc *miisc; 878 int error; 879 880 RUE_LOCK_ASSERT(sc, MA_OWNED); 881 882 sc->sc_flags &= ~RUE_FLAG_LINK; 883 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 884 PHY_RESET(miisc); 885 error = mii_mediachg(mii); 886 return (error); 887 } 888 889 /* 890 * Report current media status. 891 */ 892 static void 893 rue_ifmedia_sts(if_t ifp, struct ifmediareq *ifmr) 894 { 895 struct rue_softc *sc = if_getsoftc(ifp); 896 struct mii_data *mii = GET_MII(sc); 897 898 RUE_LOCK(sc); 899 mii_pollstat(mii); 900 ifmr->ifm_active = mii->mii_media_active; 901 ifmr->ifm_status = mii->mii_media_status; 902 RUE_UNLOCK(sc); 903 } 904 905 static void 906 rue_stop(struct usb_ether *ue) 907 { 908 struct rue_softc *sc = uether_getsc(ue); 909 if_t ifp = uether_getifp(ue); 910 911 RUE_LOCK_ASSERT(sc, MA_OWNED); 912 913 if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING); 914 sc->sc_flags &= ~RUE_FLAG_LINK; 915 916 /* 917 * stop all the transfers, if not already stopped: 918 */ 919 usbd_transfer_stop(sc->sc_xfer[RUE_BULK_DT_WR]); 920 usbd_transfer_stop(sc->sc_xfer[RUE_BULK_DT_RD]); 921 usbd_transfer_stop(sc->sc_xfer[RUE_INTR_DT_RD]); 922 923 rue_csr_write_1(sc, RUE_CR, 0x00); 924 925 rue_reset(sc); 926 } 927