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 /* 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 #include <net/if_media.h> 91 92 #include <dev/mii/mii.h> 93 #include <dev/mii/miivar.h> 94 95 #include <dev/usb/usb.h> 96 #include <dev/usb/usbdi.h> 97 #include <dev/usb/usbdi_util.h> 98 #include "usbdevs.h" 99 100 #define USB_DEBUG_VAR rue_debug 101 #include <dev/usb/usb_debug.h> 102 #include <dev/usb/usb_process.h> 103 104 #include <dev/usb/net/usb_ethernet.h> 105 #include <dev/usb/net/if_ruereg.h> 106 107 #include "miibus_if.h" 108 109 #ifdef USB_DEBUG 110 static int rue_debug = 0; 111 112 static SYSCTL_NODE(_hw_usb, OID_AUTO, rue, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 113 "USB rue"); 114 SYSCTL_INT(_hw_usb_rue, OID_AUTO, debug, CTLFLAG_RWTUN, 115 &rue_debug, 0, "Debug level"); 116 #endif 117 118 /* 119 * Various supported device vendors/products. 120 */ 121 122 static const STRUCT_USB_HOST_ID rue_devs[] = { 123 {USB_VPI(USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUAKTX, 0)}, 124 {USB_VPI(USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_USBKR100, 0)}, 125 {USB_VPI(USB_VENDOR_OQO, USB_PRODUCT_OQO_ETHER01, 0)}, 126 }; 127 128 /* prototypes */ 129 130 static device_probe_t rue_probe; 131 static device_attach_t rue_attach; 132 static device_detach_t rue_detach; 133 134 static miibus_readreg_t rue_miibus_readreg; 135 static miibus_writereg_t rue_miibus_writereg; 136 static miibus_statchg_t rue_miibus_statchg; 137 138 static usb_callback_t rue_intr_callback; 139 static usb_callback_t rue_bulk_read_callback; 140 static usb_callback_t rue_bulk_write_callback; 141 142 static uether_fn_t rue_attach_post; 143 static uether_fn_t rue_init; 144 static uether_fn_t rue_stop; 145 static uether_fn_t rue_start; 146 static uether_fn_t rue_tick; 147 static uether_fn_t rue_setmulti; 148 static uether_fn_t rue_setpromisc; 149 150 static int rue_read_mem(struct rue_softc *, uint16_t, void *, int); 151 static int rue_write_mem(struct rue_softc *, uint16_t, void *, int); 152 static uint8_t rue_csr_read_1(struct rue_softc *, uint16_t); 153 static uint16_t rue_csr_read_2(struct rue_softc *, uint16_t); 154 static int rue_csr_write_1(struct rue_softc *, uint16_t, uint8_t); 155 static int rue_csr_write_2(struct rue_softc *, uint16_t, uint16_t); 156 static int rue_csr_write_4(struct rue_softc *, int, uint32_t); 157 158 static void rue_reset(struct rue_softc *); 159 static int rue_ifmedia_upd(if_t); 160 static void rue_ifmedia_sts(if_t, struct ifmediareq *); 161 162 static const struct usb_config rue_config[RUE_N_TRANSFER] = { 163 [RUE_BULK_DT_WR] = { 164 .type = UE_BULK, 165 .endpoint = UE_ADDR_ANY, 166 .direction = UE_DIR_OUT, 167 .bufsize = MCLBYTES, 168 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 169 .callback = rue_bulk_write_callback, 170 .timeout = 10000, /* 10 seconds */ 171 }, 172 173 [RUE_BULK_DT_RD] = { 174 .type = UE_BULK, 175 .endpoint = UE_ADDR_ANY, 176 .direction = UE_DIR_IN, 177 .bufsize = (MCLBYTES + 4), 178 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 179 .callback = rue_bulk_read_callback, 180 .timeout = 0, /* no timeout */ 181 }, 182 183 [RUE_INTR_DT_RD] = { 184 .type = UE_INTERRUPT, 185 .endpoint = UE_ADDR_ANY, 186 .direction = UE_DIR_IN, 187 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 188 .bufsize = 0, /* use wMaxPacketSize */ 189 .callback = rue_intr_callback, 190 }, 191 }; 192 193 static device_method_t rue_methods[] = { 194 /* Device interface */ 195 DEVMETHOD(device_probe, rue_probe), 196 DEVMETHOD(device_attach, rue_attach), 197 DEVMETHOD(device_detach, rue_detach), 198 199 /* MII interface */ 200 DEVMETHOD(miibus_readreg, rue_miibus_readreg), 201 DEVMETHOD(miibus_writereg, rue_miibus_writereg), 202 DEVMETHOD(miibus_statchg, rue_miibus_statchg), 203 204 DEVMETHOD_END 205 }; 206 207 static driver_t rue_driver = { 208 .name = "rue", 209 .methods = rue_methods, 210 .size = sizeof(struct rue_softc), 211 }; 212 213 DRIVER_MODULE_ORDERED(rue, uhub, rue_driver, NULL, NULL, SI_ORDER_ANY); 214 DRIVER_MODULE(miibus, rue, miibus_driver, NULL, NULL); 215 MODULE_DEPEND(rue, uether, 1, 1, 1); 216 MODULE_DEPEND(rue, usb, 1, 1, 1); 217 MODULE_DEPEND(rue, ether, 1, 1, 1); 218 MODULE_DEPEND(rue, miibus, 1, 1, 1); 219 MODULE_VERSION(rue, 1); 220 USB_PNP_HOST_INFO(rue_devs); 221 222 static const struct usb_ether_methods rue_ue_methods = { 223 .ue_attach_post = rue_attach_post, 224 .ue_start = rue_start, 225 .ue_init = rue_init, 226 .ue_stop = rue_stop, 227 .ue_tick = rue_tick, 228 .ue_setmulti = rue_setmulti, 229 .ue_setpromisc = rue_setpromisc, 230 .ue_mii_upd = rue_ifmedia_upd, 231 .ue_mii_sts = rue_ifmedia_sts, 232 }; 233 234 #define RUE_SETBIT(sc, reg, x) \ 235 rue_csr_write_1(sc, reg, rue_csr_read_1(sc, reg) | (x)) 236 237 #define RUE_CLRBIT(sc, reg, x) \ 238 rue_csr_write_1(sc, reg, rue_csr_read_1(sc, reg) & ~(x)) 239 240 static int 241 rue_read_mem(struct rue_softc *sc, uint16_t addr, void *buf, int len) 242 { 243 struct usb_device_request req; 244 245 req.bmRequestType = UT_READ_VENDOR_DEVICE; 246 req.bRequest = UR_SET_ADDRESS; 247 USETW(req.wValue, addr); 248 USETW(req.wIndex, 0); 249 USETW(req.wLength, len); 250 251 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 252 } 253 254 static int 255 rue_write_mem(struct rue_softc *sc, uint16_t addr, void *buf, int len) 256 { 257 struct usb_device_request req; 258 259 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 260 req.bRequest = UR_SET_ADDRESS; 261 USETW(req.wValue, addr); 262 USETW(req.wIndex, 0); 263 USETW(req.wLength, len); 264 265 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 266 } 267 268 static uint8_t 269 rue_csr_read_1(struct rue_softc *sc, uint16_t reg) 270 { 271 uint8_t val; 272 273 rue_read_mem(sc, reg, &val, 1); 274 return (val); 275 } 276 277 static uint16_t 278 rue_csr_read_2(struct rue_softc *sc, uint16_t reg) 279 { 280 uint8_t val[2]; 281 282 rue_read_mem(sc, reg, &val, 2); 283 return (UGETW(val)); 284 } 285 286 static int 287 rue_csr_write_1(struct rue_softc *sc, uint16_t reg, uint8_t val) 288 { 289 return (rue_write_mem(sc, reg, &val, 1)); 290 } 291 292 static int 293 rue_csr_write_2(struct rue_softc *sc, uint16_t reg, uint16_t val) 294 { 295 uint8_t temp[2]; 296 297 USETW(temp, val); 298 return (rue_write_mem(sc, reg, &temp, 2)); 299 } 300 301 static int 302 rue_csr_write_4(struct rue_softc *sc, int reg, uint32_t val) 303 { 304 uint8_t temp[4]; 305 306 USETDW(temp, val); 307 return (rue_write_mem(sc, reg, &temp, 4)); 308 } 309 310 static int 311 rue_miibus_readreg(device_t dev, int phy, int reg) 312 { 313 struct rue_softc *sc = device_get_softc(dev); 314 uint16_t rval; 315 uint16_t ruereg; 316 int locked; 317 318 if (phy != 0) /* RTL8150 supports PHY == 0, only */ 319 return (0); 320 321 locked = mtx_owned(&sc->sc_mtx); 322 if (!locked) 323 RUE_LOCK(sc); 324 325 switch (reg) { 326 case MII_BMCR: 327 ruereg = RUE_BMCR; 328 break; 329 case MII_BMSR: 330 ruereg = RUE_BMSR; 331 break; 332 case MII_ANAR: 333 ruereg = RUE_ANAR; 334 break; 335 case MII_ANER: 336 ruereg = RUE_AER; 337 break; 338 case MII_ANLPAR: 339 ruereg = RUE_ANLP; 340 break; 341 case MII_PHYIDR1: 342 case MII_PHYIDR2: 343 rval = 0; 344 goto done; 345 default: 346 if (RUE_REG_MIN <= reg && reg <= RUE_REG_MAX) { 347 rval = rue_csr_read_1(sc, reg); 348 goto done; 349 } 350 device_printf(sc->sc_ue.ue_dev, "bad phy register\n"); 351 rval = 0; 352 goto done; 353 } 354 355 rval = rue_csr_read_2(sc, ruereg); 356 done: 357 if (!locked) 358 RUE_UNLOCK(sc); 359 return (rval); 360 } 361 362 static int 363 rue_miibus_writereg(device_t dev, int phy, int reg, int data) 364 { 365 struct rue_softc *sc = device_get_softc(dev); 366 uint16_t ruereg; 367 int locked; 368 369 if (phy != 0) /* RTL8150 supports PHY == 0, only */ 370 return (0); 371 372 locked = mtx_owned(&sc->sc_mtx); 373 if (!locked) 374 RUE_LOCK(sc); 375 376 switch (reg) { 377 case MII_BMCR: 378 ruereg = RUE_BMCR; 379 break; 380 case MII_BMSR: 381 ruereg = RUE_BMSR; 382 break; 383 case MII_ANAR: 384 ruereg = RUE_ANAR; 385 break; 386 case MII_ANER: 387 ruereg = RUE_AER; 388 break; 389 case MII_ANLPAR: 390 ruereg = RUE_ANLP; 391 break; 392 case MII_PHYIDR1: 393 case MII_PHYIDR2: 394 goto done; 395 default: 396 if (RUE_REG_MIN <= reg && reg <= RUE_REG_MAX) { 397 rue_csr_write_1(sc, reg, data); 398 goto done; 399 } 400 device_printf(sc->sc_ue.ue_dev, " bad phy register\n"); 401 goto done; 402 } 403 rue_csr_write_2(sc, ruereg, data); 404 done: 405 if (!locked) 406 RUE_UNLOCK(sc); 407 return (0); 408 } 409 410 static void 411 rue_miibus_statchg(device_t dev) 412 { 413 /* 414 * When the code below is enabled the card starts doing weird 415 * things after link going from UP to DOWN and back UP. 416 * 417 * Looks like some of register writes below messes up PHY 418 * interface. 419 * 420 * No visible regressions were found after commenting this code 421 * out, so that disable it for good. 422 */ 423 #if 0 424 struct rue_softc *sc = device_get_softc(dev); 425 struct mii_data *mii = GET_MII(sc); 426 uint16_t bmcr; 427 int locked; 428 429 locked = mtx_owned(&sc->sc_mtx); 430 if (!locked) 431 RUE_LOCK(sc); 432 433 RUE_CLRBIT(sc, RUE_CR, (RUE_CR_RE | RUE_CR_TE)); 434 435 bmcr = rue_csr_read_2(sc, RUE_BMCR); 436 437 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_100_TX) 438 bmcr |= RUE_BMCR_SPD_SET; 439 else 440 bmcr &= ~RUE_BMCR_SPD_SET; 441 442 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 443 bmcr |= RUE_BMCR_DUPLEX; 444 else 445 bmcr &= ~RUE_BMCR_DUPLEX; 446 447 rue_csr_write_2(sc, RUE_BMCR, bmcr); 448 449 RUE_SETBIT(sc, RUE_CR, (RUE_CR_RE | RUE_CR_TE)); 450 451 if (!locked) 452 RUE_UNLOCK(sc); 453 #endif 454 } 455 456 static void 457 rue_setpromisc(struct usb_ether *ue) 458 { 459 struct rue_softc *sc = uether_getsc(ue); 460 if_t ifp = uether_getifp(ue); 461 462 RUE_LOCK_ASSERT(sc, MA_OWNED); 463 464 /* If we want promiscuous mode, set the allframes bit. */ 465 if (if_getflags(ifp) & IFF_PROMISC) 466 RUE_SETBIT(sc, RUE_RCR, RUE_RCR_AAP); 467 else 468 RUE_CLRBIT(sc, RUE_RCR, RUE_RCR_AAP); 469 } 470 471 static u_int 472 rue_hash_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt) 473 { 474 uint32_t *hashes = arg; 475 int h; 476 477 h = ether_crc32_be(LLADDR(sdl), ETHER_ADDR_LEN) >> 26; 478 if (h < 32) 479 hashes[0] |= (1 << h); 480 else 481 hashes[1] |= (1 << (h - 32)); 482 483 return (1); 484 } 485 486 /* 487 * Program the 64-bit multicast hash filter. 488 */ 489 static void 490 rue_setmulti(struct usb_ether *ue) 491 { 492 struct rue_softc *sc = uether_getsc(ue); 493 if_t ifp = uether_getifp(ue); 494 uint16_t rxcfg; 495 uint32_t hashes[2] = { 0, 0 }; 496 int mcnt; 497 498 RUE_LOCK_ASSERT(sc, MA_OWNED); 499 500 rxcfg = rue_csr_read_2(sc, RUE_RCR); 501 502 if (if_getflags(ifp) & IFF_ALLMULTI || if_getflags(ifp) & IFF_PROMISC) { 503 rxcfg |= (RUE_RCR_AAM | RUE_RCR_AAP); 504 rxcfg &= ~RUE_RCR_AM; 505 rue_csr_write_2(sc, RUE_RCR, rxcfg); 506 rue_csr_write_4(sc, RUE_MAR0, 0xFFFFFFFF); 507 rue_csr_write_4(sc, RUE_MAR4, 0xFFFFFFFF); 508 return; 509 } 510 511 /* first, zot all the existing hash bits */ 512 rue_csr_write_4(sc, RUE_MAR0, 0); 513 rue_csr_write_4(sc, RUE_MAR4, 0); 514 515 /* now program new ones */ 516 mcnt = if_foreach_llmaddr(ifp, rue_hash_maddr, &hashes); 517 518 if (mcnt) 519 rxcfg |= RUE_RCR_AM; 520 else 521 rxcfg &= ~RUE_RCR_AM; 522 523 rxcfg &= ~(RUE_RCR_AAM | RUE_RCR_AAP); 524 525 rue_csr_write_2(sc, RUE_RCR, rxcfg); 526 rue_csr_write_4(sc, RUE_MAR0, hashes[0]); 527 rue_csr_write_4(sc, RUE_MAR4, hashes[1]); 528 } 529 530 static void 531 rue_reset(struct rue_softc *sc) 532 { 533 int i; 534 535 rue_csr_write_1(sc, RUE_CR, RUE_CR_SOFT_RST); 536 537 for (i = 0; i != RUE_TIMEOUT; i++) { 538 if (uether_pause(&sc->sc_ue, hz / 1000)) 539 break; 540 if (!(rue_csr_read_1(sc, RUE_CR) & RUE_CR_SOFT_RST)) 541 break; 542 } 543 if (i == RUE_TIMEOUT) 544 device_printf(sc->sc_ue.ue_dev, "reset never completed\n"); 545 546 uether_pause(&sc->sc_ue, hz / 100); 547 } 548 549 static void 550 rue_attach_post(struct usb_ether *ue) 551 { 552 struct rue_softc *sc = uether_getsc(ue); 553 554 /* reset the adapter */ 555 rue_reset(sc); 556 557 /* get station address from the EEPROM */ 558 rue_read_mem(sc, RUE_EEPROM_IDR0, ue->ue_eaddr, ETHER_ADDR_LEN); 559 } 560 561 /* 562 * Probe for a RTL8150 chip. 563 */ 564 static int 565 rue_probe(device_t dev) 566 { 567 struct usb_attach_arg *uaa = device_get_ivars(dev); 568 569 if (uaa->usb_mode != USB_MODE_HOST) 570 return (ENXIO); 571 if (uaa->info.bConfigIndex != RUE_CONFIG_IDX) 572 return (ENXIO); 573 if (uaa->info.bIfaceIndex != RUE_IFACE_IDX) 574 return (ENXIO); 575 576 return (usbd_lookup_id_by_uaa(rue_devs, sizeof(rue_devs), uaa)); 577 } 578 579 /* 580 * Attach the interface. Allocate softc structures, do ifmedia 581 * setup and ethernet/BPF attach. 582 */ 583 static int 584 rue_attach(device_t dev) 585 { 586 struct usb_attach_arg *uaa = device_get_ivars(dev); 587 struct rue_softc *sc = device_get_softc(dev); 588 struct usb_ether *ue = &sc->sc_ue; 589 uint8_t iface_index; 590 int error; 591 592 device_set_usb_desc(dev); 593 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 594 595 iface_index = RUE_IFACE_IDX; 596 error = usbd_transfer_setup(uaa->device, &iface_index, 597 sc->sc_xfer, rue_config, RUE_N_TRANSFER, 598 sc, &sc->sc_mtx); 599 if (error) { 600 device_printf(dev, "allocating USB transfers failed\n"); 601 goto detach; 602 } 603 604 ue->ue_sc = sc; 605 ue->ue_dev = dev; 606 ue->ue_udev = uaa->device; 607 ue->ue_mtx = &sc->sc_mtx; 608 ue->ue_methods = &rue_ue_methods; 609 610 error = uether_ifattach(ue); 611 if (error) { 612 device_printf(dev, "could not attach interface\n"); 613 goto detach; 614 } 615 return (0); /* success */ 616 617 detach: 618 rue_detach(dev); 619 return (ENXIO); /* failure */ 620 } 621 622 static int 623 rue_detach(device_t dev) 624 { 625 struct rue_softc *sc = device_get_softc(dev); 626 struct usb_ether *ue = &sc->sc_ue; 627 628 usbd_transfer_unsetup(sc->sc_xfer, RUE_N_TRANSFER); 629 uether_ifdetach(ue); 630 mtx_destroy(&sc->sc_mtx); 631 632 return (0); 633 } 634 635 static void 636 rue_intr_callback(struct usb_xfer *xfer, usb_error_t error) 637 { 638 struct rue_softc *sc = usbd_xfer_softc(xfer); 639 if_t ifp = uether_getifp(&sc->sc_ue); 640 struct rue_intrpkt pkt; 641 struct usb_page_cache *pc; 642 int actlen; 643 644 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 645 646 switch (USB_GET_STATE(xfer)) { 647 case USB_ST_TRANSFERRED: 648 649 if (ifp && (if_getdrvflags(ifp) & IFF_DRV_RUNNING) && 650 actlen >= (int)sizeof(pkt)) { 651 pc = usbd_xfer_get_frame(xfer, 0); 652 usbd_copy_out(pc, 0, &pkt, sizeof(pkt)); 653 654 if_inc_counter(ifp, IFCOUNTER_IERRORS, pkt.rue_rxlost_cnt); 655 if_inc_counter(ifp, IFCOUNTER_IERRORS, pkt.rue_crcerr_cnt); 656 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, pkt.rue_col_cnt); 657 } 658 /* FALLTHROUGH */ 659 case USB_ST_SETUP: 660 tr_setup: 661 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 662 usbd_transfer_submit(xfer); 663 return; 664 665 default: /* Error */ 666 if (error != USB_ERR_CANCELLED) { 667 /* try to clear stall first */ 668 usbd_xfer_set_stall(xfer); 669 goto tr_setup; 670 } 671 return; 672 } 673 } 674 675 static void 676 rue_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 677 { 678 struct rue_softc *sc = usbd_xfer_softc(xfer); 679 struct usb_ether *ue = &sc->sc_ue; 680 if_t ifp = uether_getifp(ue); 681 struct usb_page_cache *pc; 682 uint16_t status; 683 int actlen; 684 685 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 686 687 switch (USB_GET_STATE(xfer)) { 688 case USB_ST_TRANSFERRED: 689 690 if (actlen < 4) { 691 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 692 goto tr_setup; 693 } 694 pc = usbd_xfer_get_frame(xfer, 0); 695 usbd_copy_out(pc, actlen - 4, &status, sizeof(status)); 696 actlen -= 4; 697 698 /* check receive packet was valid or not */ 699 status = le16toh(status); 700 if ((status & RUE_RXSTAT_VALID) == 0) { 701 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 702 goto tr_setup; 703 } 704 uether_rxbuf(ue, pc, 0, actlen); 705 /* FALLTHROUGH */ 706 case USB_ST_SETUP: 707 tr_setup: 708 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 709 usbd_transfer_submit(xfer); 710 uether_rxflush(ue); 711 return; 712 713 default: /* Error */ 714 DPRINTF("bulk read error, %s\n", 715 usbd_errstr(error)); 716 717 if (error != USB_ERR_CANCELLED) { 718 /* try to clear stall first */ 719 usbd_xfer_set_stall(xfer); 720 goto tr_setup; 721 } 722 return; 723 } 724 } 725 726 static void 727 rue_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 728 { 729 struct rue_softc *sc = usbd_xfer_softc(xfer); 730 if_t ifp = uether_getifp(&sc->sc_ue); 731 struct usb_page_cache *pc; 732 struct mbuf *m; 733 int temp_len; 734 735 switch (USB_GET_STATE(xfer)) { 736 case USB_ST_TRANSFERRED: 737 DPRINTFN(11, "transfer complete\n"); 738 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 739 740 /* FALLTHROUGH */ 741 case USB_ST_SETUP: 742 tr_setup: 743 if ((sc->sc_flags & RUE_FLAG_LINK) == 0) { 744 /* 745 * don't send anything if there is no link ! 746 */ 747 return; 748 } 749 m = if_dequeue(ifp); 750 751 if (m == NULL) 752 return; 753 if (m->m_pkthdr.len > MCLBYTES) 754 m->m_pkthdr.len = MCLBYTES; 755 temp_len = m->m_pkthdr.len; 756 757 pc = usbd_xfer_get_frame(xfer, 0); 758 usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len); 759 760 /* 761 * This is an undocumented behavior. 762 * RTL8150 chip doesn't send frame length smaller than 763 * RUE_MIN_FRAMELEN (60) byte packet. 764 */ 765 if (temp_len < RUE_MIN_FRAMELEN) { 766 usbd_frame_zero(pc, temp_len, 767 RUE_MIN_FRAMELEN - temp_len); 768 temp_len = RUE_MIN_FRAMELEN; 769 } 770 usbd_xfer_set_frame_len(xfer, 0, temp_len); 771 772 /* 773 * if there's a BPF listener, bounce a copy 774 * of this frame to him: 775 */ 776 BPF_MTAP(ifp, m); 777 778 m_freem(m); 779 780 usbd_transfer_submit(xfer); 781 782 return; 783 784 default: /* Error */ 785 DPRINTFN(11, "transfer error, %s\n", 786 usbd_errstr(error)); 787 788 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 789 790 if (error != USB_ERR_CANCELLED) { 791 /* try to clear stall first */ 792 usbd_xfer_set_stall(xfer); 793 goto tr_setup; 794 } 795 return; 796 } 797 } 798 799 static void 800 rue_tick(struct usb_ether *ue) 801 { 802 struct rue_softc *sc = uether_getsc(ue); 803 struct mii_data *mii = GET_MII(sc); 804 805 RUE_LOCK_ASSERT(sc, MA_OWNED); 806 807 mii_tick(mii); 808 if ((sc->sc_flags & RUE_FLAG_LINK) == 0 809 && mii->mii_media_status & IFM_ACTIVE && 810 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 811 sc->sc_flags |= RUE_FLAG_LINK; 812 rue_start(ue); 813 } 814 } 815 816 static void 817 rue_start(struct usb_ether *ue) 818 { 819 struct rue_softc *sc = uether_getsc(ue); 820 821 /* 822 * start the USB transfers, if not already started: 823 */ 824 usbd_transfer_start(sc->sc_xfer[RUE_INTR_DT_RD]); 825 usbd_transfer_start(sc->sc_xfer[RUE_BULK_DT_RD]); 826 usbd_transfer_start(sc->sc_xfer[RUE_BULK_DT_WR]); 827 } 828 829 static void 830 rue_init(struct usb_ether *ue) 831 { 832 struct rue_softc *sc = uether_getsc(ue); 833 if_t ifp = uether_getifp(ue); 834 835 RUE_LOCK_ASSERT(sc, MA_OWNED); 836 837 /* 838 * Cancel pending I/O 839 */ 840 rue_reset(sc); 841 842 /* Set MAC address */ 843 rue_write_mem(sc, RUE_IDR0, if_getlladdr(ifp), ETHER_ADDR_LEN); 844 845 rue_stop(ue); 846 847 /* 848 * Set the initial TX and RX configuration. 849 */ 850 rue_csr_write_1(sc, RUE_TCR, RUE_TCR_CONFIG); 851 rue_csr_write_2(sc, RUE_RCR, RUE_RCR_CONFIG|RUE_RCR_AB); 852 853 /* Load the multicast filter */ 854 rue_setpromisc(ue); 855 /* Load the multicast filter. */ 856 rue_setmulti(ue); 857 858 /* Enable RX and TX */ 859 rue_csr_write_1(sc, RUE_CR, (RUE_CR_TE | RUE_CR_RE | RUE_CR_EP3CLREN)); 860 861 usbd_xfer_set_stall(sc->sc_xfer[RUE_BULK_DT_WR]); 862 863 if_setdrvflagbits(ifp, IFF_DRV_RUNNING, 0); 864 rue_start(ue); 865 } 866 867 /* 868 * Set media options. 869 */ 870 static int 871 rue_ifmedia_upd(if_t ifp) 872 { 873 struct rue_softc *sc = if_getsoftc(ifp); 874 struct mii_data *mii = GET_MII(sc); 875 struct mii_softc *miisc; 876 int error; 877 878 RUE_LOCK_ASSERT(sc, MA_OWNED); 879 880 sc->sc_flags &= ~RUE_FLAG_LINK; 881 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 882 PHY_RESET(miisc); 883 error = mii_mediachg(mii); 884 return (error); 885 } 886 887 /* 888 * Report current media status. 889 */ 890 static void 891 rue_ifmedia_sts(if_t ifp, struct ifmediareq *ifmr) 892 { 893 struct rue_softc *sc = if_getsoftc(ifp); 894 struct mii_data *mii = GET_MII(sc); 895 896 RUE_LOCK(sc); 897 mii_pollstat(mii); 898 ifmr->ifm_active = mii->mii_media_active; 899 ifmr->ifm_status = mii->mii_media_status; 900 RUE_UNLOCK(sc); 901 } 902 903 static void 904 rue_stop(struct usb_ether *ue) 905 { 906 struct rue_softc *sc = uether_getsc(ue); 907 if_t ifp = uether_getifp(ue); 908 909 RUE_LOCK_ASSERT(sc, MA_OWNED); 910 911 if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING); 912 sc->sc_flags &= ~RUE_FLAG_LINK; 913 914 /* 915 * stop all the transfers, if not already stopped: 916 */ 917 usbd_transfer_stop(sc->sc_xfer[RUE_BULK_DT_WR]); 918 usbd_transfer_stop(sc->sc_xfer[RUE_BULK_DT_RD]); 919 usbd_transfer_stop(sc->sc_xfer[RUE_INTR_DT_RD]); 920 921 rue_csr_write_1(sc, RUE_CR, 0x00); 922 923 rue_reset(sc); 924 } 925