sys/dev/usb/net/if_ure.c

   1 /*-
   2  * Copyright (c) 2015-2016 Kevin Lo <kevlo@FreeBSD.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  */
  26
  27 #include <sys/cdefs.h>
  28 __FBSDID("$FreeBSD$");
  29
  30 #include <sys/param.h>
  31 #include <sys/systm.h>
  32 #include <sys/bus.h>
  33 #include <sys/condvar.h>
  34 #include <sys/kernel.h>
  35 #include <sys/lock.h>
  36 #include <sys/module.h>
  37 #include <sys/mutex.h>
  38 #include <sys/socket.h>
  39 #include <sys/sysctl.h>
  40 #include <sys/unistd.h>
  41
  42 #include <net/if.h>
  43 #include <net/if_var.h>
  44 #include <net/if_media.h>
  45
  46 #include <dev/mii/mii.h>
  47 #include <dev/mii/miivar.h>
  48
  49 #include <dev/usb/usb.h>
  50 #include <dev/usb/usbdi.h>
  51 #include <dev/usb/usbdi_util.h>
  52 #include "usbdevs.h"
  53
  54 #define USB_DEBUG_VAR   ure_debug
  55 #include <dev/usb/usb_debug.h>
  56 #include <dev/usb/usb_process.h>
  57
  58 #include <dev/usb/net/usb_ethernet.h>
  59 #include <dev/usb/net/if_urereg.h>
  60
  61 #include "miibus_if.h"
  62
  63 #ifdef USB_DEBUG
  64 static int ure_debug = 0;
  65
  66 static SYSCTL_NODE(_hw_usb, OID_AUTO, ure, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
  67     "USB ure");
  68 SYSCTL_INT(_hw_usb_ure, OID_AUTO, debug, CTLFLAG_RWTUN, &ure_debug, 0,
  69     "Debug level");
  70 #endif
  71
  72 /*
  73  * Various supported device vendors/products.
  74  */
  75 static const STRUCT_USB_HOST_ID ure_devs[] = {
  76 #define URE_DEV(v,p,i)  { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, i) }
  77         URE_DEV(LENOVO, RTL8153, 0),
  78         URE_DEV(LENOVO, TBT3LAN, 0),
  79         URE_DEV(LENOVO, ONELINK, 0),
  80         URE_DEV(LENOVO, USBCLAN, 0),
  81         URE_DEV(NVIDIA, RTL8153, 0),
  82         URE_DEV(REALTEK, RTL8152, URE_FLAG_8152),
  83         URE_DEV(REALTEK, RTL8153, 0),
  84         URE_DEV(TPLINK, RTL8153, 0),
  85 #undef URE_DEV
  86 };
  87
  88 static device_probe_t ure_probe;
  89 static device_attach_t ure_attach;
  90 static device_detach_t ure_detach;
  91
  92 static usb_callback_t ure_bulk_read_callback;
  93 static usb_callback_t ure_bulk_write_callback;
  94
  95 static miibus_readreg_t ure_miibus_readreg;
  96 static miibus_writereg_t ure_miibus_writereg;
  97 static miibus_statchg_t ure_miibus_statchg;
  98
  99 static uether_fn_t ure_attach_post;
 100 static uether_fn_t ure_init;
 101 static uether_fn_t ure_stop;
 102 static uether_fn_t ure_start;
 103 static uether_fn_t ure_tick;
 104 static uether_fn_t ure_rxfilter;
 105
 106 static int      ure_ctl(struct ure_softc *, uint8_t, uint16_t, uint16_t,
 107                     void *, int);
 108 static int      ure_read_mem(struct ure_softc *, uint16_t, uint16_t, void *,
 109                     int);
 110 static int      ure_write_mem(struct ure_softc *, uint16_t, uint16_t, void *,
 111                     int);
 112 static uint8_t  ure_read_1(struct ure_softc *, uint16_t, uint16_t);
 113 static uint16_t ure_read_2(struct ure_softc *, uint16_t, uint16_t);
 114 static uint32_t ure_read_4(struct ure_softc *, uint16_t, uint16_t);
 115 static int      ure_write_1(struct ure_softc *, uint16_t, uint16_t, uint32_t);
 116 static int      ure_write_2(struct ure_softc *, uint16_t, uint16_t, uint32_t);
 117 static int      ure_write_4(struct ure_softc *, uint16_t, uint16_t, uint32_t);
 118 static uint16_t ure_ocp_reg_read(struct ure_softc *, uint16_t);
 119 static void     ure_ocp_reg_write(struct ure_softc *, uint16_t, uint16_t);
 120
 121 static void     ure_read_chipver(struct ure_softc *);
 122 static int      ure_attach_post_sub(struct usb_ether *);
 123 static void     ure_reset(struct ure_softc *);
 124 static int      ure_ifmedia_upd(struct ifnet *);
 125 static void     ure_ifmedia_sts(struct ifnet *, struct ifmediareq *);
 126 static int      ure_ioctl(struct ifnet *, u_long, caddr_t);
 127 static void     ure_rtl8152_init(struct ure_softc *);
 128 static void     ure_rtl8153_init(struct ure_softc *);
 129 static void     ure_disable_teredo(struct ure_softc *);
 130 static void     ure_init_fifo(struct ure_softc *);
 131
 132 static const struct usb_config ure_config[URE_N_TRANSFER] = {
 133         [URE_BULK_DT_WR] = {
 134                 .type = UE_BULK,
 135                 .endpoint = UE_ADDR_ANY,
 136                 .direction = UE_DIR_OUT,
 137                 .bufsize = MCLBYTES,
 138                 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
 139                 .callback = ure_bulk_write_callback,
 140                 .timeout = 10000,       /* 10 seconds */
 141         },
 142         [URE_BULK_DT_RD] = {
 143                 .type = UE_BULK,
 144                 .endpoint = UE_ADDR_ANY,
 145                 .direction = UE_DIR_IN,
 146                 .bufsize = 16384,
 147                 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
 148                 .callback = ure_bulk_read_callback,
 149                 .timeout = 0,   /* no timeout */
 150         },
 151 };
 152
 153 static device_method_t ure_methods[] = {
 154         /* Device interface. */
 155         DEVMETHOD(device_probe, ure_probe),
 156         DEVMETHOD(device_attach, ure_attach),
 157         DEVMETHOD(device_detach, ure_detach),
 158
 159         /* MII interface. */
 160         DEVMETHOD(miibus_readreg, ure_miibus_readreg),
 161         DEVMETHOD(miibus_writereg, ure_miibus_writereg),
 162         DEVMETHOD(miibus_statchg, ure_miibus_statchg),
 163
 164         DEVMETHOD_END
 165 };
 166
 167 static driver_t ure_driver = {
 168         .name = "ure",
 169         .methods = ure_methods,
 170         .size = sizeof(struct ure_softc),
 171 };
 172
 173 static devclass_t ure_devclass;
 174
 175 DRIVER_MODULE(ure, uhub, ure_driver, ure_devclass, NULL, NULL);
 176 DRIVER_MODULE(miibus, ure, miibus_driver, miibus_devclass, NULL, NULL);
 177 MODULE_DEPEND(ure, uether, 1, 1, 1);
 178 MODULE_DEPEND(ure, usb, 1, 1, 1);
 179 MODULE_DEPEND(ure, ether, 1, 1, 1);
 180 MODULE_DEPEND(ure, miibus, 1, 1, 1);
 181 MODULE_VERSION(ure, 1);
 182 USB_PNP_HOST_INFO(ure_devs);
 183
 184 static const struct usb_ether_methods ure_ue_methods = {
 185         .ue_attach_post = ure_attach_post,
 186         .ue_attach_post_sub = ure_attach_post_sub,
 187         .ue_start = ure_start,
 188         .ue_init = ure_init,
 189         .ue_stop = ure_stop,
 190         .ue_tick = ure_tick,
 191         .ue_setmulti = ure_rxfilter,
 192         .ue_setpromisc = ure_rxfilter,
 193         .ue_mii_upd = ure_ifmedia_upd,
 194         .ue_mii_sts = ure_ifmedia_sts,
 195 };
 196
 197 static int
 198 ure_ctl(struct ure_softc *sc, uint8_t rw, uint16_t val, uint16_t index,
 199     void *buf, int len)
 200 {
 201         struct usb_device_request req;
 202
 203         URE_LOCK_ASSERT(sc, MA_OWNED);
 204
 205         if (rw == URE_CTL_WRITE)
 206                 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
 207         else
 208                 req.bmRequestType = UT_READ_VENDOR_DEVICE;
 209         req.bRequest = UR_SET_ADDRESS;
 210         USETW(req.wValue, val);
 211         USETW(req.wIndex, index);
 212         USETW(req.wLength, len);
 213
 214         return (uether_do_request(&sc->sc_ue, &req, buf, 1000));
 215 }
 216
 217 static int
 218 ure_read_mem(struct ure_softc *sc, uint16_t addr, uint16_t index,
 219     void *buf, int len)
 220 {
 221
 222         return (ure_ctl(sc, URE_CTL_READ, addr, index, buf, len));
 223 }
 224
 225 static int
 226 ure_write_mem(struct ure_softc *sc, uint16_t addr, uint16_t index,
 227     void *buf, int len)
 228 {
 229
 230         return (ure_ctl(sc, URE_CTL_WRITE, addr, index, buf, len));
 231 }
 232
 233 static uint8_t
 234 ure_read_1(struct ure_softc *sc, uint16_t reg, uint16_t index)
 235 {
 236         uint32_t val;
 237         uint8_t temp[4];
 238         uint8_t shift;
 239
 240         shift = (reg & 3) << 3;
 241         reg &= ~3;
 242
 243         ure_read_mem(sc, reg, index, &temp, 4);
 244         val = UGETDW(temp);
 245         val >>= shift;
 246
 247         return (val & 0xff);
 248 }
 249
 250 static uint16_t
 251 ure_read_2(struct ure_softc *sc, uint16_t reg, uint16_t index)
 252 {
 253         uint32_t val;
 254         uint8_t temp[4];
 255         uint8_t shift;
 256
 257         shift = (reg & 2) << 3;
 258         reg &= ~3;
 259
 260         ure_read_mem(sc, reg, index, &temp, 4);
 261         val = UGETDW(temp);
 262         val >>= shift;
 263
 264         return (val & 0xffff);
 265 }
 266
 267 static uint32_t
 268 ure_read_4(struct ure_softc *sc, uint16_t reg, uint16_t index)
 269 {
 270         uint8_t temp[4];
 271
 272         ure_read_mem(sc, reg, index, &temp, 4);
 273         return (UGETDW(temp));
 274 }
 275
 276 static int
 277 ure_write_1(struct ure_softc *sc, uint16_t reg, uint16_t index, uint32_t val)
 278 {
 279         uint16_t byen;
 280         uint8_t temp[4];
 281         uint8_t shift;
 282
 283         byen = URE_BYTE_EN_BYTE;
 284         shift = reg & 3;
 285         val &= 0xff;
 286
 287         if (reg & 3) {
 288                 byen <<= shift;
 289                 val <<= (shift << 3);
 290                 reg &= ~3;
 291         }
 292
 293         USETDW(temp, val);
 294         return (ure_write_mem(sc, reg, index | byen, &temp, 4));
 295 }
 296
 297 static int
 298 ure_write_2(struct ure_softc *sc, uint16_t reg, uint16_t index, uint32_t val)
 299 {
 300         uint16_t byen;
 301         uint8_t temp[4];
 302         uint8_t shift;
 303
 304         byen = URE_BYTE_EN_WORD;
 305         shift = reg & 2;
 306         val &= 0xffff;
 307
 308         if (reg & 2) {
 309                 byen <<= shift;
 310                 val <<= (shift << 3);
 311                 reg &= ~3;
 312         }
 313
 314         USETDW(temp, val);
 315         return (ure_write_mem(sc, reg, index | byen, &temp, 4));
 316 }
 317
 318 static int
 319 ure_write_4(struct ure_softc *sc, uint16_t reg, uint16_t index, uint32_t val)
 320 {
 321         uint8_t temp[4];
 322
 323         USETDW(temp, val);
 324         return (ure_write_mem(sc, reg, index | URE_BYTE_EN_DWORD, &temp, 4));
 325 }
 326
 327 static uint16_t
 328 ure_ocp_reg_read(struct ure_softc *sc, uint16_t addr)
 329 {
 330         uint16_t reg;
 331
 332         ure_write_2(sc, URE_PLA_OCP_GPHY_BASE, URE_MCU_TYPE_PLA, addr & 0xf000);
 333         reg = (addr & 0x0fff) | 0xb000;
 334
 335         return (ure_read_2(sc, reg, URE_MCU_TYPE_PLA));
 336 }
 337
 338 static void
 339 ure_ocp_reg_write(struct ure_softc *sc, uint16_t addr, uint16_t data)
 340 {
 341         uint16_t reg;
 342
 343         ure_write_2(sc, URE_PLA_OCP_GPHY_BASE, URE_MCU_TYPE_PLA, addr & 0xf000);
 344         reg = (addr & 0x0fff) | 0xb000;
 345
 346         ure_write_2(sc, reg, URE_MCU_TYPE_PLA, data);
 347 }
 348
 349 static int
 350 ure_miibus_readreg(device_t dev, int phy, int reg)
 351 {
 352         struct ure_softc *sc;
 353         uint16_t val;
 354         int locked;
 355
 356         sc = device_get_softc(dev);
 357         locked = mtx_owned(&sc->sc_mtx);
 358         if (!locked)
 359                 URE_LOCK(sc);
 360
 361         /* Let the rgephy driver read the URE_GMEDIASTAT register. */
 362         if (reg == URE_GMEDIASTAT) {
 363                 if (!locked)
 364                         URE_UNLOCK(sc);
 365                 return (ure_read_1(sc, URE_GMEDIASTAT, URE_MCU_TYPE_PLA));
 366         }
 367
 368         val = ure_ocp_reg_read(sc, URE_OCP_BASE_MII + reg * 2);
 369
 370         if (!locked)
 371                 URE_UNLOCK(sc);
 372         return (val);
 373 }
 374
 375 static int
 376 ure_miibus_writereg(device_t dev, int phy, int reg, int val)
 377 {
 378         struct ure_softc *sc;
 379         int locked;
 380
 381         sc = device_get_softc(dev);
 382         if (sc->sc_phyno != phy)
 383                 return (0);
 384
 385         locked = mtx_owned(&sc->sc_mtx);
 386         if (!locked)
 387                 URE_LOCK(sc);
 388
 389         ure_ocp_reg_write(sc, URE_OCP_BASE_MII + reg * 2, val);
 390
 391         if (!locked)
 392                 URE_UNLOCK(sc);
 393         return (0);
 394 }
 395
 396 static void
 397 ure_miibus_statchg(device_t dev)
 398 {
 399         struct ure_softc *sc;
 400         struct mii_data *mii;
 401         struct ifnet *ifp;
 402         int locked;
 403
 404         sc = device_get_softc(dev);
 405         mii = GET_MII(sc);
 406         locked = mtx_owned(&sc->sc_mtx);
 407         if (!locked)
 408                 URE_LOCK(sc);
 409
 410         ifp = uether_getifp(&sc->sc_ue);
 411         if (mii == NULL || ifp == NULL ||
 412             (ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
 413                 goto done;
 414
 415         sc->sc_flags &= ~URE_FLAG_LINK;
 416         if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) ==
 417             (IFM_ACTIVE | IFM_AVALID)) {
 418                 switch (IFM_SUBTYPE(mii->mii_media_active)) {
 419                 case IFM_10_T:
 420                 case IFM_100_TX:
 421                         sc->sc_flags |= URE_FLAG_LINK;
 422                         break;
 423                 case IFM_1000_T:
 424                         if ((sc->sc_flags & URE_FLAG_8152) != 0)
 425                                 break;
 426                         sc->sc_flags |= URE_FLAG_LINK;
 427                         break;
 428                 default:
 429                         break;
 430                 }
 431         }
 432
 433         /* Lost link, do nothing. */
 434         if ((sc->sc_flags & URE_FLAG_LINK) == 0)
 435                 goto done;
 436 done:
 437         if (!locked)
 438                 URE_UNLOCK(sc);
 439 }
 440
 441 /*
 442  * Probe for a RTL8152/RTL8153 chip.
 443  */
 444 static int
 445 ure_probe(device_t dev)
 446 {
 447         struct usb_attach_arg *uaa;
 448
 449         uaa = device_get_ivars(dev);
 450         if (uaa->usb_mode != USB_MODE_HOST)
 451                 return (ENXIO);
 452         if (uaa->info.bConfigIndex != URE_CONFIG_IDX)
 453                 return (ENXIO);
 454         if (uaa->info.bIfaceIndex != URE_IFACE_IDX)
 455                 return (ENXIO);
 456
 457         return (usbd_lookup_id_by_uaa(ure_devs, sizeof(ure_devs), uaa));
 458 }
 459
 460 /*
 461  * Attach the interface. Allocate softc structures, do ifmedia
 462  * setup and ethernet/BPF attach.
 463  */
 464 static int
 465 ure_attach(device_t dev)
 466 {
 467         struct usb_attach_arg *uaa = device_get_ivars(dev);
 468         struct ure_softc *sc = device_get_softc(dev);
 469         struct usb_ether *ue = &sc->sc_ue;
 470         uint8_t iface_index;
 471         int error;
 472
 473         sc->sc_flags = USB_GET_DRIVER_INFO(uaa);
 474         device_set_usb_desc(dev);
 475         mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF);
 476
 477         iface_index = URE_IFACE_IDX;
 478         error = usbd_transfer_setup(uaa->device, &iface_index, sc->sc_xfer,
 479             ure_config, URE_N_TRANSFER, sc, &sc->sc_mtx);
 480         if (error != 0) {
 481                 device_printf(dev, "allocating USB transfers failed\n");
 482                 goto detach;
 483         }
 484
 485         ue->ue_sc = sc;
 486         ue->ue_dev = dev;
 487         ue->ue_udev = uaa->device;
 488         ue->ue_mtx = &sc->sc_mtx;
 489         ue->ue_methods = &ure_ue_methods;
 490
 491         error = uether_ifattach(ue);
 492         if (error != 0) {
 493                 device_printf(dev, "could not attach interface\n");
 494                 goto detach;
 495         }
 496         return (0);                     /* success */
 497
 498 detach:
 499         ure_detach(dev);
 500         return (ENXIO);                 /* failure */
 501 }
 502
 503 static int
 504 ure_detach(device_t dev)
 505 {
 506         struct ure_softc *sc = device_get_softc(dev);
 507         struct usb_ether *ue = &sc->sc_ue;
 508
 509         usbd_transfer_unsetup(sc->sc_xfer, URE_N_TRANSFER);
 510         uether_ifdetach(ue);
 511         mtx_destroy(&sc->sc_mtx);
 512
 513         return (0);
 514 }
 515
 516 static void
 517 ure_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
 518 {
 519         struct ure_softc *sc = usbd_xfer_softc(xfer);
 520         struct usb_ether *ue = &sc->sc_ue;
 521         struct ifnet *ifp = uether_getifp(ue);
 522         struct usb_page_cache *pc;
 523         struct ure_rxpkt pkt;
 524         int actlen, len;
 525
 526         usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
 527
 528         switch (USB_GET_STATE(xfer)) {
 529         case USB_ST_TRANSFERRED:
 530                 if (actlen < (int)(sizeof(pkt))) {
 531                         if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
 532                         goto tr_setup;
 533                 }
 534                 pc = usbd_xfer_get_frame(xfer, 0);
 535                 usbd_copy_out(pc, 0, &pkt, sizeof(pkt));
 536                 len = le32toh(pkt.ure_pktlen) & URE_RXPKT_LEN_MASK;
 537                 len -= ETHER_CRC_LEN;
 538                 if (actlen < (int)(len + sizeof(pkt))) {
 539                         if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
 540                         goto tr_setup;
 541                 }
 542
 543                 uether_rxbuf(ue, pc, sizeof(pkt), len);
 544                 /* FALLTHROUGH */
 545         case USB_ST_SETUP:
 546 tr_setup:
 547                 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
 548                 usbd_transfer_submit(xfer);
 549                 uether_rxflush(ue);
 550                 return;
 551
 552         default:                        /* Error */
 553                 DPRINTF("bulk read error, %s\n",
 554                     usbd_errstr(error));
 555
 556                 if (error != USB_ERR_CANCELLED) {
 557                         /* try to clear stall first */
 558                         usbd_xfer_set_stall(xfer);
 559                         goto tr_setup;
 560                 }
 561                 return;
 562         }
 563 }
 564
 565 static void
 566 ure_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
 567 {
 568         struct ure_softc *sc = usbd_xfer_softc(xfer);
 569         struct ifnet *ifp = uether_getifp(&sc->sc_ue);
 570         struct usb_page_cache *pc;
 571         struct mbuf *m;
 572         struct ure_txpkt txpkt;
 573         int len, pos;
 574
 575         switch (USB_GET_STATE(xfer)) {
 576         case USB_ST_TRANSFERRED:
 577                 DPRINTFN(11, "transfer complete\n");
 578                 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
 579                 /* FALLTHROUGH */
 580         case USB_ST_SETUP:
 581 tr_setup:
 582                 if ((sc->sc_flags & URE_FLAG_LINK) == 0 ||
 583                     (ifp->if_drv_flags & IFF_DRV_OACTIVE) != 0) {
 584                         /*
 585                          * don't send anything if there is no link !
 586                          */
 587                         return;
 588                 }
 589                 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
 590                 if (m == NULL)
 591                         break;
 592                 pos = 0;
 593                 len = m->m_pkthdr.len;
 594                 pc = usbd_xfer_get_frame(xfer, 0);
 595                 memset(&txpkt, 0, sizeof(txpkt));
 596                 txpkt.ure_pktlen = htole32((len & URE_TXPKT_LEN_MASK) |
 597                     URE_TKPKT_TX_FS | URE_TKPKT_TX_LS);
 598                 usbd_copy_in(pc, pos, &txpkt, sizeof(txpkt));
 599                 pos += sizeof(txpkt);
 600                 usbd_m_copy_in(pc, pos, m, 0, m->m_pkthdr.len);
 601                 pos += m->m_pkthdr.len;
 602
 603                 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
 604
 605                 /*
 606                  * If there's a BPF listener, bounce a copy
 607                  * of this frame to him.
 608                  */
 609                 BPF_MTAP(ifp, m);
 610
 611                 m_freem(m);
 612
 613                 /* Set frame length. */
 614                 usbd_xfer_set_frame_len(xfer, 0, pos);
 615
 616                 usbd_transfer_submit(xfer);
 617                 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
 618                 return;
 619         default:                        /* Error */
 620                 DPRINTFN(11, "transfer error, %s\n",
 621                     usbd_errstr(error));
 622
 623                 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
 624                 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
 625
 626                 if (error != USB_ERR_CANCELLED) {
 627                         /* try to clear stall first */
 628                         usbd_xfer_set_stall(xfer);
 629                         goto tr_setup;
 630                 }
 631                 return;
 632         }
 633 }
 634
 635 static void
 636 ure_read_chipver(struct ure_softc *sc)
 637 {
 638         uint16_t ver;
 639
 640         ver = ure_read_2(sc, URE_PLA_TCR1, URE_MCU_TYPE_PLA) & URE_VERSION_MASK;
 641         switch (ver) {
 642         case 0x4c00:
 643                 sc->sc_chip |= URE_CHIP_VER_4C00;
 644                 break;
 645         case 0x4c10:
 646                 sc->sc_chip |= URE_CHIP_VER_4C10;
 647                 break;
 648         case 0x5c00:
 649                 sc->sc_chip |= URE_CHIP_VER_5C00;
 650                 break;
 651         case 0x5c10:
 652                 sc->sc_chip |= URE_CHIP_VER_5C10;
 653                 break;
 654         case 0x5c20:
 655                 sc->sc_chip |= URE_CHIP_VER_5C20;
 656                 break;
 657         case 0x5c30:
 658                 sc->sc_chip |= URE_CHIP_VER_5C30;
 659                 break;
 660         default:
 661                 device_printf(sc->sc_ue.ue_dev,
 662                     "unknown version 0x%04x\n", ver);
 663                 break;
 664         }
 665 }
 666
 667 static void
 668 ure_attach_post(struct usb_ether *ue)
 669 {
 670         struct ure_softc *sc = uether_getsc(ue);
 671
 672         sc->sc_phyno = 0;
 673
 674         /* Determine the chip version. */
 675         ure_read_chipver(sc);
 676
 677         /* Initialize controller and get station address. */
 678         if (sc->sc_flags & URE_FLAG_8152)
 679                 ure_rtl8152_init(sc);
 680         else
 681                 ure_rtl8153_init(sc);
 682
 683         if ((sc->sc_chip & URE_CHIP_VER_4C00) ||
 684             (sc->sc_chip & URE_CHIP_VER_4C10))
 685                 ure_read_mem(sc, URE_PLA_IDR, URE_MCU_TYPE_PLA,
 686                     ue->ue_eaddr, 8);
 687         else
 688                 ure_read_mem(sc, URE_PLA_BACKUP, URE_MCU_TYPE_PLA,
 689                     ue->ue_eaddr, 8);
 690
 691         if (ETHER_IS_ZERO(sc->sc_ue.ue_eaddr)) {
 692                 device_printf(sc->sc_ue.ue_dev, "MAC assigned randomly\n");
 693                 arc4rand(sc->sc_ue.ue_eaddr, ETHER_ADDR_LEN, 0);
 694                 sc->sc_ue.ue_eaddr[0] &= ~0x01; /* unicast */
 695                 sc->sc_ue.ue_eaddr[0] |= 0x02;  /* locally administered */
 696         }
 697 }
 698
 699 static int
 700 ure_attach_post_sub(struct usb_ether *ue)
 701 {
 702         struct ure_softc *sc;
 703         struct ifnet *ifp;
 704         int error;
 705
 706         sc = uether_getsc(ue);
 707         ifp = ue->ue_ifp;
 708         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 709         ifp->if_start = uether_start;
 710         ifp->if_ioctl = ure_ioctl;
 711         ifp->if_init = uether_init;
 712         IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
 713         ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 714         IFQ_SET_READY(&ifp->if_snd);
 715
 716         mtx_lock(&Giant);
 717         error = mii_attach(ue->ue_dev, &ue->ue_miibus, ifp,
 718             uether_ifmedia_upd, ue->ue_methods->ue_mii_sts,
 719             BMSR_DEFCAPMASK, sc->sc_phyno, MII_OFFSET_ANY, 0);
 720         mtx_unlock(&Giant);
 721
 722         return (error);
 723 }
 724
 725 static void
 726 ure_init(struct usb_ether *ue)
 727 {
 728         struct ure_softc *sc = uether_getsc(ue);
 729         struct ifnet *ifp = uether_getifp(ue);
 730
 731         URE_LOCK_ASSERT(sc, MA_OWNED);
 732
 733         if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0)
 734                 return;
 735
 736         /* Cancel pending I/O. */
 737         ure_stop(ue);
 738
 739         ure_reset(sc);
 740
 741         /* Set MAC address. */
 742         ure_write_1(sc, URE_PLA_CRWECR, URE_MCU_TYPE_PLA, URE_CRWECR_CONFIG);
 743         ure_write_mem(sc, URE_PLA_IDR, URE_MCU_TYPE_PLA | URE_BYTE_EN_SIX_BYTES,
 744             IF_LLADDR(ifp), 8);
 745         ure_write_1(sc, URE_PLA_CRWECR, URE_MCU_TYPE_PLA, URE_CRWECR_NORAML);
 746
 747         /* Reset the packet filter. */
 748         ure_write_2(sc, URE_PLA_FMC, URE_MCU_TYPE_PLA,
 749             ure_read_2(sc, URE_PLA_FMC, URE_MCU_TYPE_PLA) &
 750             ~URE_FMC_FCR_MCU_EN);
 751         ure_write_2(sc, URE_PLA_FMC, URE_MCU_TYPE_PLA,
 752             ure_read_2(sc, URE_PLA_FMC, URE_MCU_TYPE_PLA) |
 753             URE_FMC_FCR_MCU_EN);
 754
 755         /* Enable transmit and receive. */
 756         ure_write_1(sc, URE_PLA_CR, URE_MCU_TYPE_PLA,
 757             ure_read_1(sc, URE_PLA_CR, URE_MCU_TYPE_PLA) | URE_CR_RE |
 758             URE_CR_TE);
 759
 760         ure_write_2(sc, URE_PLA_MISC_1, URE_MCU_TYPE_PLA,
 761             ure_read_2(sc, URE_PLA_MISC_1, URE_MCU_TYPE_PLA) &
 762             ~URE_RXDY_GATED_EN);
 763
 764         /*  Configure RX filters. */
 765         ure_rxfilter(ue);
 766
 767         usbd_xfer_set_stall(sc->sc_xfer[URE_BULK_DT_WR]);
 768
 769         /* Indicate we are up and running. */
 770         ifp->if_drv_flags |= IFF_DRV_RUNNING;
 771
 772         /* Switch to selected media. */
 773         ure_ifmedia_upd(ifp);
 774 }
 775
 776 static void
 777 ure_tick(struct usb_ether *ue)
 778 {
 779         struct ure_softc *sc = uether_getsc(ue);
 780         struct mii_data *mii = GET_MII(sc);
 781
 782         URE_LOCK_ASSERT(sc, MA_OWNED);
 783
 784         mii_tick(mii);
 785         if ((sc->sc_flags & URE_FLAG_LINK) == 0
 786             && mii->mii_media_status & IFM_ACTIVE &&
 787             IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
 788                 sc->sc_flags |= URE_FLAG_LINK;
 789                 ure_start(ue);
 790         }
 791 }
 792
 793 static u_int
 794 ure_hash_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt)
 795 {
 796         uint32_t h, *hashes = arg;
 797
 798         h = ether_crc32_be(LLADDR(sdl), ETHER_ADDR_LEN) >> 26;
 799         if (h < 32)
 800                 hashes[0] |= (1 << h);
 801         else
 802                 hashes[1] |= (1 << (h - 32));
 803         return (1);
 804 }
 805
 806 /*
 807  * Program the 64-bit multicast hash filter.
 808  */
 809 static void
 810 ure_rxfilter(struct usb_ether *ue)
 811 {
 812         struct ure_softc *sc = uether_getsc(ue);
 813         struct ifnet *ifp = uether_getifp(ue);
 814         uint32_t rxmode;
 815         uint32_t h, hashes[2] = { 0, 0 };
 816
 817         URE_LOCK_ASSERT(sc, MA_OWNED);
 818
 819         rxmode = ure_read_4(sc, URE_PLA_RCR, URE_MCU_TYPE_PLA);
 820         rxmode &= ~(URE_RCR_AAP | URE_RCR_AM);
 821         rxmode |= URE_RCR_APM;  /* accept physical match packets */
 822         rxmode |= URE_RCR_AB;   /* always accept broadcasts */
 823         if (ifp->if_flags & (IFF_ALLMULTI | IFF_PROMISC)) {
 824                 if (ifp->if_flags & IFF_PROMISC)
 825                         rxmode |= URE_RCR_AAP;
 826                 rxmode |= URE_RCR_AM;
 827                 hashes[0] = hashes[1] = 0xffffffff;
 828                 goto done;
 829         }
 830
 831         rxmode |= URE_RCR_AM;
 832         if_foreach_llmaddr(ifp, ure_hash_maddr, &hashes);
 833
 834         h = bswap32(hashes[0]);
 835         hashes[0] = bswap32(hashes[1]);
 836         hashes[1] = h;
 837         rxmode |= URE_RCR_AM;
 838
 839 done:
 840         ure_write_4(sc, URE_PLA_MAR0, URE_MCU_TYPE_PLA, hashes[0]);
 841         ure_write_4(sc, URE_PLA_MAR4, URE_MCU_TYPE_PLA, hashes[1]);
 842         ure_write_4(sc, URE_PLA_RCR, URE_MCU_TYPE_PLA, rxmode);
 843 }
 844
 845 static void
 846 ure_start(struct usb_ether *ue)
 847 {
 848         struct ure_softc *sc = uether_getsc(ue);
 849
 850         /*
 851          * start the USB transfers, if not already started:
 852          */
 853         usbd_transfer_start(sc->sc_xfer[URE_BULK_DT_RD]);
 854         usbd_transfer_start(sc->sc_xfer[URE_BULK_DT_WR]);
 855 }
 856
 857 static void
 858 ure_reset(struct ure_softc *sc)
 859 {
 860         int i;
 861
 862         ure_write_1(sc, URE_PLA_CR, URE_MCU_TYPE_PLA, URE_CR_RST);
 863
 864         for (i = 0; i < URE_TIMEOUT; i++) {
 865                 if (!(ure_read_1(sc, URE_PLA_CR, URE_MCU_TYPE_PLA) &
 866                     URE_CR_RST))
 867                         break;
 868                 uether_pause(&sc->sc_ue, hz / 100);
 869         }
 870         if (i == URE_TIMEOUT)
 871                 device_printf(sc->sc_ue.ue_dev, "reset never completed\n");
 872 }
 873
 874 /*
 875  * Set media options.
 876  */
 877 static int
 878 ure_ifmedia_upd(struct ifnet *ifp)
 879 {
 880         struct ure_softc *sc = ifp->if_softc;
 881         struct mii_data *mii = GET_MII(sc);
 882         struct mii_softc *miisc;
 883         int error;
 884
 885         URE_LOCK_ASSERT(sc, MA_OWNED);
 886
 887         LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
 888                 PHY_RESET(miisc);
 889         error = mii_mediachg(mii);
 890         return (error);
 891 }
 892
 893 /*
 894  * Report current media status.
 895  */
 896 static void
 897 ure_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
 898 {
 899         struct ure_softc *sc;
 900         struct mii_data *mii;
 901
 902         sc = ifp->if_softc;
 903         mii = GET_MII(sc);
 904
 905         URE_LOCK(sc);
 906         mii_pollstat(mii);
 907         ifmr->ifm_active = mii->mii_media_active;
 908         ifmr->ifm_status = mii->mii_media_status;
 909         URE_UNLOCK(sc);
 910 }
 911
 912 static int
 913 ure_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 914 {
 915         struct usb_ether *ue = ifp->if_softc;
 916         struct ure_softc *sc;
 917         struct ifreq *ifr;
 918         int error, mask, reinit;
 919
 920         sc = uether_getsc(ue);
 921         ifr = (struct ifreq *)data;
 922         error = 0;
 923         reinit = 0;
 924         if (cmd == SIOCSIFCAP) {
 925                 URE_LOCK(sc);
 926                 mask = ifr->ifr_reqcap ^ ifp->if_capenable;
 927                 if (reinit > 0 && ifp->if_drv_flags & IFF_DRV_RUNNING)
 928                         ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
 929                 else
 930                         reinit = 0;
 931                 URE_UNLOCK(sc);
 932                 if (reinit > 0)
 933                         uether_init(ue);
 934         } else
 935                 error = uether_ioctl(ifp, cmd, data);
 936
 937         return (error);
 938 }
 939
 940 static void
 941 ure_rtl8152_init(struct ure_softc *sc)
 942 {
 943         uint32_t pwrctrl;
 944
 945         /* Disable ALDPS. */
 946         ure_ocp_reg_write(sc, URE_OCP_ALDPS_CONFIG, URE_ENPDNPS | URE_LINKENA |
 947             URE_DIS_SDSAVE);
 948         uether_pause(&sc->sc_ue, hz / 50);
 949
 950         if (sc->sc_chip & URE_CHIP_VER_4C00) {
 951                 ure_write_2(sc, URE_PLA_LED_FEATURE, URE_MCU_TYPE_PLA,
 952                     ure_read_2(sc, URE_PLA_LED_FEATURE, URE_MCU_TYPE_PLA) &
 953                     ~URE_LED_MODE_MASK);
 954         }
 955
 956         ure_write_2(sc, URE_USB_UPS_CTRL, URE_MCU_TYPE_USB,
 957             ure_read_2(sc, URE_USB_UPS_CTRL, URE_MCU_TYPE_USB) &
 958             ~URE_POWER_CUT);
 959         ure_write_2(sc, URE_USB_PM_CTRL_STATUS, URE_MCU_TYPE_USB,
 960             ure_read_2(sc, URE_USB_PM_CTRL_STATUS, URE_MCU_TYPE_USB) &
 961             ~URE_RESUME_INDICATE);
 962
 963         ure_write_2(sc, URE_PLA_PHY_PWR, URE_MCU_TYPE_PLA,
 964             ure_read_2(sc, URE_PLA_PHY_PWR, URE_MCU_TYPE_PLA) |
 965             URE_TX_10M_IDLE_EN | URE_PFM_PWM_SWITCH);
 966         pwrctrl = ure_read_4(sc, URE_PLA_MAC_PWR_CTRL, URE_MCU_TYPE_PLA);
 967         pwrctrl &= ~URE_MCU_CLK_RATIO_MASK;
 968         pwrctrl |= URE_MCU_CLK_RATIO | URE_D3_CLK_GATED_EN;
 969         ure_write_4(sc, URE_PLA_MAC_PWR_CTRL, URE_MCU_TYPE_PLA, pwrctrl);
 970         ure_write_2(sc, URE_PLA_GPHY_INTR_IMR, URE_MCU_TYPE_PLA,
 971             URE_GPHY_STS_MSK | URE_SPEED_DOWN_MSK | URE_SPDWN_RXDV_MSK |
 972             URE_SPDWN_LINKCHG_MSK);
 973
 974         /* Disable Rx aggregation. */
 975         ure_write_2(sc, URE_USB_USB_CTRL, URE_MCU_TYPE_USB,
 976             ure_read_2(sc, URE_USB_USB_CTRL, URE_MCU_TYPE_USB) |
 977             URE_RX_AGG_DISABLE);
 978
 979         /* Disable ALDPS. */
 980         ure_ocp_reg_write(sc, URE_OCP_ALDPS_CONFIG, URE_ENPDNPS | URE_LINKENA |
 981             URE_DIS_SDSAVE);
 982         uether_pause(&sc->sc_ue, hz / 50);
 983
 984         ure_init_fifo(sc);
 985
 986         ure_write_1(sc, URE_USB_TX_AGG, URE_MCU_TYPE_USB,
 987             URE_TX_AGG_MAX_THRESHOLD);
 988         ure_write_4(sc, URE_USB_RX_BUF_TH, URE_MCU_TYPE_USB, URE_RX_THR_HIGH);
 989         ure_write_4(sc, URE_USB_TX_DMA, URE_MCU_TYPE_USB,
 990             URE_TEST_MODE_DISABLE | URE_TX_SIZE_ADJUST1);
 991 }
 992
 993 static void
 994 ure_rtl8153_init(struct ure_softc *sc)
 995 {
 996         uint16_t val;
 997         uint8_t u1u2[8];
 998         int i;
 999
1000         /* Disable ALDPS. */
1001         ure_ocp_reg_write(sc, URE_OCP_POWER_CFG,
1002             ure_ocp_reg_read(sc, URE_OCP_POWER_CFG) & ~URE_EN_ALDPS);
1003         uether_pause(&sc->sc_ue, hz / 50);
1004
1005         memset(u1u2, 0x00, sizeof(u1u2));
1006         ure_write_mem(sc, URE_USB_TOLERANCE,
1007             URE_MCU_TYPE_USB | URE_BYTE_EN_SIX_BYTES, u1u2, sizeof(u1u2));
1008
1009         for (i = 0; i < URE_TIMEOUT; i++) {
1010                 if (ure_read_2(sc, URE_PLA_BOOT_CTRL, URE_MCU_TYPE_PLA) &
1011                     URE_AUTOLOAD_DONE)
1012                         break;
1013                 uether_pause(&sc->sc_ue, hz / 100);
1014         }
1015         if (i == URE_TIMEOUT)
1016                 device_printf(sc->sc_ue.ue_dev,
1017                     "timeout waiting for chip autoload\n");
1018
1019         for (i = 0; i < URE_TIMEOUT; i++) {
1020                 val = ure_ocp_reg_read(sc, URE_OCP_PHY_STATUS) &
1021                     URE_PHY_STAT_MASK;
1022                 if (val == URE_PHY_STAT_LAN_ON || val == URE_PHY_STAT_PWRDN)
1023                         break;
1024                 uether_pause(&sc->sc_ue, hz / 100);
1025         }
1026         if (i == URE_TIMEOUT)
1027                 device_printf(sc->sc_ue.ue_dev,
1028                     "timeout waiting for phy to stabilize\n");
1029
1030         ure_write_2(sc, URE_USB_U2P3_CTRL, URE_MCU_TYPE_USB,
1031             ure_read_2(sc, URE_USB_U2P3_CTRL, URE_MCU_TYPE_USB) &
1032             ~URE_U2P3_ENABLE);
1033
1034         if (sc->sc_chip & URE_CHIP_VER_5C10) {
1035                 val = ure_read_2(sc, URE_USB_SSPHYLINK2, URE_MCU_TYPE_USB);
1036                 val &= ~URE_PWD_DN_SCALE_MASK;
1037                 val |= URE_PWD_DN_SCALE(96);
1038                 ure_write_2(sc, URE_USB_SSPHYLINK2, URE_MCU_TYPE_USB, val);
1039
1040                 ure_write_1(sc, URE_USB_USB2PHY, URE_MCU_TYPE_USB,
1041                     ure_read_1(sc, URE_USB_USB2PHY, URE_MCU_TYPE_USB) |
1042                     URE_USB2PHY_L1 | URE_USB2PHY_SUSPEND);
1043         } else if (sc->sc_chip & URE_CHIP_VER_5C20) {
1044                 ure_write_1(sc, URE_PLA_DMY_REG0, URE_MCU_TYPE_PLA,
1045                     ure_read_1(sc, URE_PLA_DMY_REG0, URE_MCU_TYPE_PLA) &
1046                     ~URE_ECM_ALDPS);
1047         }
1048         if (sc->sc_chip & (URE_CHIP_VER_5C20 | URE_CHIP_VER_5C30)) {
1049                 val = ure_read_1(sc, URE_USB_CSR_DUMMY1, URE_MCU_TYPE_USB);
1050                 if (ure_read_2(sc, URE_USB_BURST_SIZE, URE_MCU_TYPE_USB) ==
1051                     0)
1052                         val &= ~URE_DYNAMIC_BURST;
1053                 else
1054                         val |= URE_DYNAMIC_BURST;
1055                 ure_write_1(sc, URE_USB_CSR_DUMMY1, URE_MCU_TYPE_USB, val);
1056         }
1057
1058         ure_write_1(sc, URE_USB_CSR_DUMMY2, URE_MCU_TYPE_USB,
1059             ure_read_1(sc, URE_USB_CSR_DUMMY2, URE_MCU_TYPE_USB) |
1060             URE_EP4_FULL_FC);
1061
1062         ure_write_2(sc, URE_USB_WDT11_CTRL, URE_MCU_TYPE_USB,
1063             ure_read_2(sc, URE_USB_WDT11_CTRL, URE_MCU_TYPE_USB) &
1064             ~URE_TIMER11_EN);
1065
1066         ure_write_2(sc, URE_PLA_LED_FEATURE, URE_MCU_TYPE_PLA,
1067             ure_read_2(sc, URE_PLA_LED_FEATURE, URE_MCU_TYPE_PLA) &
1068             ~URE_LED_MODE_MASK);
1069
1070         if ((sc->sc_chip & URE_CHIP_VER_5C10) &&
1071             usbd_get_speed(sc->sc_ue.ue_udev) != USB_SPEED_SUPER)
1072                 val = URE_LPM_TIMER_500MS;
1073         else
1074                 val = URE_LPM_TIMER_500US;
1075         ure_write_1(sc, URE_USB_LPM_CTRL, URE_MCU_TYPE_USB,
1076             val | URE_FIFO_EMPTY_1FB | URE_ROK_EXIT_LPM);
1077
1078         val = ure_read_2(sc, URE_USB_AFE_CTRL2, URE_MCU_TYPE_USB);
1079         val &= ~URE_SEN_VAL_MASK;
1080         val |= URE_SEN_VAL_NORMAL | URE_SEL_RXIDLE;
1081         ure_write_2(sc, URE_USB_AFE_CTRL2, URE_MCU_TYPE_USB, val);
1082
1083         ure_write_2(sc, URE_USB_CONNECT_TIMER, URE_MCU_TYPE_USB, 0x0001);
1084
1085         ure_write_2(sc, URE_USB_POWER_CUT, URE_MCU_TYPE_USB,
1086             ure_read_2(sc, URE_USB_POWER_CUT, URE_MCU_TYPE_USB) &
1087             ~(URE_PWR_EN | URE_PHASE2_EN));
1088         ure_write_2(sc, URE_USB_MISC_0, URE_MCU_TYPE_USB,
1089             ure_read_2(sc, URE_USB_MISC_0, URE_MCU_TYPE_USB) &
1090             ~URE_PCUT_STATUS);
1091
1092         memset(u1u2, 0xff, sizeof(u1u2));
1093         ure_write_mem(sc, URE_USB_TOLERANCE,
1094             URE_MCU_TYPE_USB | URE_BYTE_EN_SIX_BYTES, u1u2, sizeof(u1u2));
1095
1096         ure_write_2(sc, URE_PLA_MAC_PWR_CTRL, URE_MCU_TYPE_PLA,
1097             URE_ALDPS_SPDWN_RATIO);
1098         ure_write_2(sc, URE_PLA_MAC_PWR_CTRL2, URE_MCU_TYPE_PLA,
1099             URE_EEE_SPDWN_RATIO);
1100         ure_write_2(sc, URE_PLA_MAC_PWR_CTRL3, URE_MCU_TYPE_PLA,
1101             URE_PKT_AVAIL_SPDWN_EN | URE_SUSPEND_SPDWN_EN |
1102             URE_U1U2_SPDWN_EN | URE_L1_SPDWN_EN);
1103         ure_write_2(sc, URE_PLA_MAC_PWR_CTRL4, URE_MCU_TYPE_PLA,
1104             URE_PWRSAVE_SPDWN_EN | URE_RXDV_SPDWN_EN | URE_TX10MIDLE_EN |
1105             URE_TP100_SPDWN_EN | URE_TP500_SPDWN_EN | URE_TP1000_SPDWN_EN |
1106             URE_EEE_SPDWN_EN);
1107
1108         val = ure_read_2(sc, URE_USB_U2P3_CTRL, URE_MCU_TYPE_USB);
1109         if (!(sc->sc_chip & (URE_CHIP_VER_5C00 | URE_CHIP_VER_5C10)))
1110                 val |= URE_U2P3_ENABLE;
1111         else
1112                 val &= ~URE_U2P3_ENABLE;
1113         ure_write_2(sc, URE_USB_U2P3_CTRL, URE_MCU_TYPE_USB, val);
1114
1115         memset(u1u2, 0x00, sizeof(u1u2));
1116         ure_write_mem(sc, URE_USB_TOLERANCE,
1117             URE_MCU_TYPE_USB | URE_BYTE_EN_SIX_BYTES, u1u2, sizeof(u1u2));
1118
1119         /* Disable ALDPS. */
1120         ure_ocp_reg_write(sc, URE_OCP_POWER_CFG,
1121             ure_ocp_reg_read(sc, URE_OCP_POWER_CFG) & ~URE_EN_ALDPS);
1122         uether_pause(&sc->sc_ue, hz / 50);
1123
1124         ure_init_fifo(sc);
1125
1126         /* Disable Rx aggregation. */
1127         ure_write_2(sc, URE_USB_USB_CTRL, URE_MCU_TYPE_USB,
1128             ure_read_2(sc, URE_USB_USB_CTRL, URE_MCU_TYPE_USB) |
1129             URE_RX_AGG_DISABLE);
1130
1131         val = ure_read_2(sc, URE_USB_U2P3_CTRL, URE_MCU_TYPE_USB);
1132         if (!(sc->sc_chip & (URE_CHIP_VER_5C00 | URE_CHIP_VER_5C10)))
1133                 val |= URE_U2P3_ENABLE;
1134         else
1135                 val &= ~URE_U2P3_ENABLE;
1136         ure_write_2(sc, URE_USB_U2P3_CTRL, URE_MCU_TYPE_USB, val);
1137
1138         memset(u1u2, 0xff, sizeof(u1u2));
1139         ure_write_mem(sc, URE_USB_TOLERANCE,
1140             URE_MCU_TYPE_USB | URE_BYTE_EN_SIX_BYTES, u1u2, sizeof(u1u2));
1141 }
1142
1143 static void
1144 ure_stop(struct usb_ether *ue)
1145 {
1146         struct ure_softc *sc = uether_getsc(ue);
1147         struct ifnet *ifp = uether_getifp(ue);
1148
1149         URE_LOCK_ASSERT(sc, MA_OWNED);
1150
1151         ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
1152         sc->sc_flags &= ~URE_FLAG_LINK;
1153
1154         /*
1155          * stop all the transfers, if not already stopped:
1156          */
1157         usbd_transfer_stop(sc->sc_xfer[URE_BULK_DT_WR]);
1158         usbd_transfer_stop(sc->sc_xfer[URE_BULK_DT_RD]);
1159 }
1160
1161 static void
1162 ure_disable_teredo(struct ure_softc *sc)
1163 {
1164
1165         ure_write_4(sc, URE_PLA_TEREDO_CFG, URE_MCU_TYPE_PLA,
1166             ure_read_4(sc, URE_PLA_TEREDO_CFG, URE_MCU_TYPE_PLA) &
1167             ~(URE_TEREDO_SEL | URE_TEREDO_RS_EVENT_MASK | URE_OOB_TEREDO_EN));
1168         ure_write_2(sc, URE_PLA_WDT6_CTRL, URE_MCU_TYPE_PLA,
1169             URE_WDT6_SET_MODE);
1170         ure_write_2(sc, URE_PLA_REALWOW_TIMER, URE_MCU_TYPE_PLA, 0);
1171         ure_write_4(sc, URE_PLA_TEREDO_TIMER, URE_MCU_TYPE_PLA, 0);
1172 }
1173
1174 static void
1175 ure_init_fifo(struct ure_softc *sc)
1176 {
1177         uint32_t rx_fifo1, rx_fifo2;
1178         int i;
1179
1180         ure_write_2(sc, URE_PLA_MISC_1, URE_MCU_TYPE_PLA,
1181             ure_read_2(sc, URE_PLA_MISC_1, URE_MCU_TYPE_PLA) |
1182             URE_RXDY_GATED_EN);
1183
1184         ure_disable_teredo(sc);
1185
1186         ure_write_4(sc, URE_PLA_RCR, URE_MCU_TYPE_PLA,
1187             ure_read_4(sc, URE_PLA_RCR, URE_MCU_TYPE_PLA) &
1188             ~URE_RCR_ACPT_ALL);
1189
1190         if (!(sc->sc_flags & URE_FLAG_8152)) {
1191                 if (sc->sc_chip & (URE_CHIP_VER_5C00 | URE_CHIP_VER_5C10 |
1192                     URE_CHIP_VER_5C20)) {
1193                                 ure_ocp_reg_write(sc, URE_OCP_ADC_CFG,
1194                                     URE_CKADSEL_L | URE_ADC_EN | URE_EN_EMI_L);
1195                 }
1196                 if (sc->sc_chip & URE_CHIP_VER_5C00) {
1197                         ure_ocp_reg_write(sc, URE_OCP_EEE_CFG,
1198                             ure_ocp_reg_read(sc, URE_OCP_EEE_CFG) &
1199                             ~URE_CTAP_SHORT_EN);
1200                 }
1201                 ure_ocp_reg_write(sc, URE_OCP_POWER_CFG,
1202                     ure_ocp_reg_read(sc, URE_OCP_POWER_CFG) |
1203                     URE_EEE_CLKDIV_EN);
1204                 ure_ocp_reg_write(sc, URE_OCP_DOWN_SPEED,
1205                     ure_ocp_reg_read(sc, URE_OCP_DOWN_SPEED) |
1206                     URE_EN_10M_BGOFF);
1207                 ure_ocp_reg_write(sc, URE_OCP_POWER_CFG,
1208                     ure_ocp_reg_read(sc, URE_OCP_POWER_CFG) |
1209                     URE_EN_10M_PLLOFF);
1210                 ure_ocp_reg_write(sc, URE_OCP_SRAM_ADDR, URE_SRAM_IMPEDANCE);
1211                 ure_ocp_reg_write(sc, URE_OCP_SRAM_DATA, 0x0b13);
1212                 ure_write_2(sc, URE_PLA_PHY_PWR, URE_MCU_TYPE_PLA,
1213                     ure_read_2(sc, URE_PLA_PHY_PWR, URE_MCU_TYPE_PLA) |
1214                     URE_PFM_PWM_SWITCH);
1215
1216                 /* Enable LPF corner auto tune. */
1217                 ure_ocp_reg_write(sc, URE_OCP_SRAM_ADDR, URE_SRAM_LPF_CFG);
1218                 ure_ocp_reg_write(sc, URE_OCP_SRAM_DATA, 0xf70f);
1219
1220                 /* Adjust 10M amplitude. */
1221                 ure_ocp_reg_write(sc, URE_OCP_SRAM_ADDR, URE_SRAM_10M_AMP1);
1222                 ure_ocp_reg_write(sc, URE_OCP_SRAM_DATA, 0x00af);
1223                 ure_ocp_reg_write(sc, URE_OCP_SRAM_ADDR, URE_SRAM_10M_AMP2);
1224                 ure_ocp_reg_write(sc, URE_OCP_SRAM_DATA, 0x0208);
1225         }
1226
1227         ure_reset(sc);
1228
1229         ure_write_1(sc, URE_PLA_CR, URE_MCU_TYPE_PLA, 0);
1230
1231         ure_write_1(sc, URE_PLA_OOB_CTRL, URE_MCU_TYPE_PLA,
1232             ure_read_1(sc, URE_PLA_OOB_CTRL, URE_MCU_TYPE_PLA) &
1233             ~URE_NOW_IS_OOB);
1234
1235         ure_write_2(sc, URE_PLA_SFF_STS_7, URE_MCU_TYPE_PLA,
1236             ure_read_2(sc, URE_PLA_SFF_STS_7, URE_MCU_TYPE_PLA) &
1237             ~URE_MCU_BORW_EN);
1238         for (i = 0; i < URE_TIMEOUT; i++) {
1239                 if (ure_read_1(sc, URE_PLA_OOB_CTRL, URE_MCU_TYPE_PLA) &
1240                     URE_LINK_LIST_READY)
1241                         break;
1242                 uether_pause(&sc->sc_ue, hz / 100);
1243         }
1244         if (i == URE_TIMEOUT)
1245                 device_printf(sc->sc_ue.ue_dev,
1246                     "timeout waiting for OOB control\n");
1247         ure_write_2(sc, URE_PLA_SFF_STS_7, URE_MCU_TYPE_PLA,
1248             ure_read_2(sc, URE_PLA_SFF_STS_7, URE_MCU_TYPE_PLA) |
1249             URE_RE_INIT_LL);
1250         for (i = 0; i < URE_TIMEOUT; i++) {
1251                 if (ure_read_1(sc, URE_PLA_OOB_CTRL, URE_MCU_TYPE_PLA) &
1252                     URE_LINK_LIST_READY)
1253                         break;
1254                 uether_pause(&sc->sc_ue, hz / 100);
1255         }
1256         if (i == URE_TIMEOUT)
1257                 device_printf(sc->sc_ue.ue_dev,
1258                     "timeout waiting for OOB control\n");
1259
1260         ure_write_2(sc, URE_PLA_CPCR, URE_MCU_TYPE_PLA,
1261             ure_read_2(sc, URE_PLA_CPCR, URE_MCU_TYPE_PLA) &
1262             ~URE_CPCR_RX_VLAN);
1263         ure_write_2(sc, URE_PLA_TCR0, URE_MCU_TYPE_PLA,
1264             ure_read_2(sc, URE_PLA_TCR0, URE_MCU_TYPE_PLA) |
1265             URE_TCR0_AUTO_FIFO);
1266
1267         /* Configure Rx FIFO threshold. */
1268         ure_write_4(sc, URE_PLA_RXFIFO_CTRL0, URE_MCU_TYPE_PLA,
1269             URE_RXFIFO_THR1_NORMAL);
1270         if (usbd_get_speed(sc->sc_ue.ue_udev) == USB_SPEED_FULL) {
1271                 rx_fifo1 = URE_RXFIFO_THR2_FULL;
1272                 rx_fifo2 = URE_RXFIFO_THR3_FULL;
1273         } else {
1274                 rx_fifo1 = URE_RXFIFO_THR2_HIGH;
1275                 rx_fifo2 = URE_RXFIFO_THR3_HIGH;
1276         }
1277         ure_write_4(sc, URE_PLA_RXFIFO_CTRL1, URE_MCU_TYPE_PLA, rx_fifo1);
1278         ure_write_4(sc, URE_PLA_RXFIFO_CTRL2, URE_MCU_TYPE_PLA, rx_fifo2);
1279
1280         /* Configure Tx FIFO threshold. */
1281         ure_write_4(sc, URE_PLA_TXFIFO_CTRL, URE_MCU_TYPE_PLA,
1282             URE_TXFIFO_THR_NORMAL);
1283 }