root/dev/usb/if_axe.c

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DEFINITIONS

This source file includes following definitions.
  1. axe_lock_mii
  2. axe_unlock_mii
  3. axe_cmd
  4. axe_miibus_readreg
  5. axe_miibus_writereg
  6. axe_miibus_statchg
  7. axe_ifmedia_upd
  8. axe_ifmedia_sts
  9. axe_setmulti
  10. axe_reset
  11. axe_ax88178_init
  12. axe_ax88772_init
  13. axe_match
  14. axe_attach
  15. axe_detach
  16. axe_activate
  17. axe_newbuf
  18. axe_rx_list_init
  19. axe_tx_list_init
  20. axe_rxeof
  21. axe_txeof
  22. axe_tick
  23. axe_tick_task
  24. axe_encap
  25. axe_start
  26. axe_init
  27. axe_ioctl
  28. axe_watchdog
  29. axe_stop

    1 /*      $OpenBSD: if_axe.c,v 1.78 2007/06/14 10:11:15 mbalmer Exp $     */
    2 
    3 /*
    4  * Copyright (c) 2005, 2006, 2007 Jonathan Gray <jsg@openbsd.org>
    5  *
    6  * Permission to use, copy, modify, and distribute this software for any
    7  * purpose with or without fee is hereby granted, provided that the above
    8  * copyright notice and this permission notice appear in all copies.
    9  *
   10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   17  */
   18 
   19 /*
   20  * Copyright (c) 1997, 1998, 1999, 2000-2003
   21  *      Bill Paul <wpaul@windriver.com>.  All rights reserved.
   22  *
   23  * Redistribution and use in source and binary forms, with or without
   24  * modification, are permitted provided that the following conditions
   25  * are met:
   26  * 1. Redistributions of source code must retain the above copyright
   27  *    notice, this list of conditions and the following disclaimer.
   28  * 2. Redistributions in binary form must reproduce the above copyright
   29  *    notice, this list of conditions and the following disclaimer in the
   30  *    documentation and/or other materials provided with the distribution.
   31  * 3. All advertising materials mentioning features or use of this software
   32  *    must display the following acknowledgement:
   33  *      This product includes software developed by Bill Paul.
   34  * 4. Neither the name of the author nor the names of any co-contributors
   35  *    may be used to endorse or promote products derived from this software
   36  *    without specific prior written permission.
   37  *
   38  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
   39  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   40  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   41  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
   42  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   43  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   44  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   45  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   46  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   47  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   48  * THE POSSIBILITY OF SUCH DAMAGE.
   49  */
   50 
   51 #include <sys/cdefs.h>
   52 
   53 /*
   54  * ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the
   55  * LinkSys USB200M and various other adapters.
   56  *
   57  * Manuals available from:
   58  * http://www.asix.com.tw/datasheet/mac/Ax88172.PDF
   59  * Note: you need the manual for the AX88170 chip (USB 1.x ethernet
   60  * controller) to find the definitions for the RX control register.
   61  * http://www.asix.com.tw/datasheet/mac/Ax88170.PDF
   62  *
   63  * Written by Bill Paul <wpaul@windriver.com>
   64  * Senior Engineer
   65  * Wind River Systems
   66  */
   67 
   68 /*
   69  * The AX88172 provides USB ethernet supports at 10 and 100Mbps.
   70  * It uses an external PHY (reference designs use a RealTek chip),
   71  * and has a 64-bit multicast hash filter. There is some information
   72  * missing from the manual which one needs to know in order to make
   73  * the chip function:
   74  *
   75  * - You must set bit 7 in the RX control register, otherwise the
   76  *   chip won't receive any packets.
   77  * - You must initialize all 3 IPG registers, or you won't be able
   78  *   to send any packets.
   79  *
   80  * Note that this device appears to only support loading the station
   81  * address via autload from the EEPROM (i.e. there's no way to manaully
   82  * set it).
   83  *
   84  * (Adam Weinberger wanted me to name this driver if_gir.c.)
   85  */
   86 
   87 /*
   88  * Ported to OpenBSD 3/28/2004 by Greg Taleck <taleck@oz.net>
   89  * with bits and pieces from the aue and url drivers.
   90  */
   91 
   92 #include "bpfilter.h"
   93 
   94 #include <sys/param.h>
   95 #include <sys/systm.h>
   96 #include <sys/sockio.h>
   97 #include <sys/rwlock.h>
   98 #include <sys/mbuf.h>
   99 #include <sys/kernel.h>
  100 #include <sys/proc.h>
  101 #include <sys/socket.h>
  102 
  103 #include <sys/device.h>
  104 
  105 #include <machine/bus.h>
  106 
  107 #include <net/if.h>
  108 #include <net/if_dl.h>
  109 #include <net/if_media.h>
  110 
  111 #if NBPFILTER > 0
  112 #include <net/bpf.h>
  113 #endif
  114 
  115 #ifdef INET
  116 #include <netinet/in.h>
  117 #include <netinet/in_systm.h>
  118 #include <netinet/in_var.h>
  119 #include <netinet/ip.h>
  120 #include <netinet/if_ether.h>
  121 #endif
  122 
  123 #include <dev/mii/mii.h>
  124 #include <dev/mii/miivar.h>
  125 
  126 #include <dev/usb/usb.h>
  127 #include <dev/usb/usbdi.h>
  128 #include <dev/usb/usbdi_util.h>
  129 #include <dev/usb/usbdivar.h>
  130 #include <dev/usb/usbdevs.h>
  131 
  132 #include <dev/usb/if_axereg.h>
  133 
  134 #ifdef AXE_DEBUG
  135 #define DPRINTF(x)      do { if (axedebug) printf x; } while (0)
  136 #define DPRINTFN(n,x)   do { if (axedebug >= (n)) printf x; } while (0)
  137 int     axedebug = 0;
  138 #else
  139 #define DPRINTF(x)
  140 #define DPRINTFN(n,x)
  141 #endif
  142 
  143 /*
  144  * Various supported device vendors/products.
  145  */
  146 const struct axe_type axe_devs[] = {
  147         { { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_UF200}, 0 },
  148         { { USB_VENDOR_ACERCM, USB_PRODUCT_ACERCM_EP1427X2}, 0 },
  149         { { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88172}, 0 },
  150         { { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88772}, AX772 },
  151         { { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88178}, AX178 },
  152         { { USB_VENDOR_ATEN, USB_PRODUCT_ATEN_UC210T}, 0 },
  153         { { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D5055 }, AX178 },
  154         { { USB_VENDOR_BILLIONTON, USB_PRODUCT_BILLIONTON_SNAPPORT}, 0 },
  155         { { USB_VENDOR_BILLIONTON, USB_PRODUCT_BILLIONTON_USB2AR}, 0},
  156         { { USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_USB200MV2}, AX772 },
  157         { { USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB2_TX }, 0},
  158         { { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DUBE100}, 0 },
  159         { { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DUBE100B1 }, AX772 },
  160         { { USB_VENDOR_GOODWAY, USB_PRODUCT_GOODWAY_GWUSB2E}, 0 },
  161         { { USB_VENDOR_IODATA, USB_PRODUCT_IODATA_ETGUS2 }, AX178 },
  162         { { USB_VENDOR_JVC, USB_PRODUCT_JVC_MP_PRX1}, 0 },
  163         { { USB_VENDOR_LINKSYS2, USB_PRODUCT_LINKSYS2_USB200M}, 0 },
  164         { { USB_VENDOR_LINKSYS4, USB_PRODUCT_LINKSYS4_USB1000 }, AX178 },
  165         { { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUAU2KTX}, 0 },
  166         { { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_FA120}, 0 },
  167         { { USB_VENDOR_OQO, USB_PRODUCT_OQO_ETHER01PLUS }, AX772 },
  168         { { USB_VENDOR_PLANEX3, USB_PRODUCT_PLANEX3_GU1000T }, AX178 },
  169         { { USB_VENDOR_SYSTEMTALKS, USB_PRODUCT_SYSTEMTALKS_SGCX2UL}, 0 },
  170         { { USB_VENDOR_SITECOM, USB_PRODUCT_SITECOM_LN029}, 0 },
  171         { { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_LN028 }, AX178 }
  172 };
  173 
  174 #define axe_lookup(v, p) ((struct axe_type *)usb_lookup(axe_devs, v, p))
  175 
  176 int axe_match(struct device *, void *, void *); 
  177 void axe_attach(struct device *, struct device *, void *); 
  178 int axe_detach(struct device *, int); 
  179 int axe_activate(struct device *, enum devact); 
  180 
  181 struct cfdriver axe_cd = { 
  182         NULL, "axe", DV_IFNET 
  183 }; 
  184 
  185 const struct cfattach axe_ca = { 
  186         sizeof(struct axe_softc), 
  187         axe_match, 
  188         axe_attach, 
  189         axe_detach, 
  190         axe_activate, 
  191 };
  192 
  193 int axe_tx_list_init(struct axe_softc *);
  194 int axe_rx_list_init(struct axe_softc *);
  195 struct mbuf *axe_newbuf(void);
  196 int axe_encap(struct axe_softc *, struct mbuf *, int);
  197 void axe_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
  198 void axe_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
  199 void axe_tick(void *);
  200 void axe_tick_task(void *);
  201 void axe_start(struct ifnet *);
  202 int axe_ioctl(struct ifnet *, u_long, caddr_t);
  203 void axe_init(void *);
  204 void axe_stop(struct axe_softc *);
  205 void axe_watchdog(struct ifnet *);
  206 int axe_miibus_readreg(struct device *, int, int);
  207 void axe_miibus_writereg(struct device *, int, int, int);
  208 void axe_miibus_statchg(struct device *);
  209 int axe_cmd(struct axe_softc *, int, int, int, void *);
  210 int axe_ifmedia_upd(struct ifnet *);
  211 void axe_ifmedia_sts(struct ifnet *, struct ifmediareq *);
  212 void axe_reset(struct axe_softc *sc);
  213 
  214 void axe_setmulti(struct axe_softc *);
  215 void axe_lock_mii(struct axe_softc *sc);
  216 void axe_unlock_mii(struct axe_softc *sc);
  217 
  218 void axe_ax88178_init(struct axe_softc *);
  219 void axe_ax88772_init(struct axe_softc *);
  220 
  221 /* Get exclusive access to the MII registers */
  222 void
  223 axe_lock_mii(struct axe_softc *sc)
  224 {
  225         sc->axe_refcnt++;
  226         rw_enter_write(&sc->axe_mii_lock);
  227 }
  228 
  229 void
  230 axe_unlock_mii(struct axe_softc *sc)
  231 {
  232         rw_exit_write(&sc->axe_mii_lock);
  233         if (--sc->axe_refcnt < 0)
  234                 usb_detach_wakeup(&sc->axe_dev);
  235 }
  236 
  237 int
  238 axe_cmd(struct axe_softc *sc, int cmd, int index, int val, void *buf)
  239 {
  240         usb_device_request_t    req;
  241         usbd_status             err;
  242 
  243         if (sc->axe_dying)
  244                 return(0);
  245 
  246         if (AXE_CMD_DIR(cmd))
  247                 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
  248         else
  249                 req.bmRequestType = UT_READ_VENDOR_DEVICE;
  250         req.bRequest = AXE_CMD_CMD(cmd);
  251         USETW(req.wValue, val);
  252         USETW(req.wIndex, index);
  253         USETW(req.wLength, AXE_CMD_LEN(cmd));
  254 
  255         err = usbd_do_request(sc->axe_udev, &req, buf);
  256 
  257         if (err)
  258                 return(-1);
  259 
  260         return(0);
  261 }
  262 
  263 int
  264 axe_miibus_readreg(struct device *dev, int phy, int reg)
  265 {
  266         struct axe_softc        *sc = (void *)dev;
  267         usbd_status             err;
  268         uWord                   val;
  269 
  270         if (sc->axe_dying) {
  271                 DPRINTF(("axe: dying\n"));
  272                 return(0);
  273         }
  274 
  275 #ifdef notdef
  276         /*
  277          * The chip tells us the MII address of any supported
  278          * PHYs attached to the chip, so only read from those.
  279          */
  280 
  281         DPRINTF(("axe_miibus_readreg: phy 0x%x reg 0x%x\n", phy, reg));
  282 
  283         if (sc->axe_phyaddrs[0] != AXE_NOPHY && phy != sc->axe_phyaddrs[0])
  284                 return (0);
  285 
  286         if (sc->axe_phyaddrs[1] != AXE_NOPHY && phy != sc->axe_phyaddrs[1])
  287                 return (0);
  288 #endif
  289         if (sc->axe_phyaddrs[0] != 0xFF && sc->axe_phyaddrs[0] != phy)
  290                 return (0);
  291 
  292         USETW(val, 0);
  293 
  294         axe_lock_mii(sc);
  295         axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL);
  296         err = axe_cmd(sc, AXE_CMD_MII_READ_REG, reg, phy, val);
  297         axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL);
  298         axe_unlock_mii(sc);
  299 
  300         if (err) {
  301                 printf("axe%d: read PHY failed\n", sc->axe_unit);
  302                 return(-1);
  303         }
  304 
  305         if (UGETW(val))
  306                 sc->axe_phyaddrs[0] = phy;
  307 
  308         return (UGETW(val));
  309 }
  310 
  311 void
  312 axe_miibus_writereg(struct device *dev, int phy, int reg, int val)
  313 {
  314         struct axe_softc        *sc = (void *)dev;
  315         usbd_status             err;
  316         uWord                   uval;
  317 
  318         if (sc->axe_dying)
  319                 return;
  320 
  321         USETW(uval, val);
  322 
  323         axe_lock_mii(sc);
  324         axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL);
  325         err = axe_cmd(sc, AXE_CMD_MII_WRITE_REG, reg, phy, uval);
  326         axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL);
  327         axe_unlock_mii(sc);
  328 
  329         if (err) {
  330                 printf("axe%d: write PHY failed\n", sc->axe_unit);
  331                 return;
  332         }
  333 }
  334 
  335 void
  336 axe_miibus_statchg(struct device *dev)
  337 {
  338         struct axe_softc        *sc = (void *)dev;
  339         struct mii_data         *mii = GET_MII(sc);
  340         int                     val, err;
  341 
  342         if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX)
  343                 val = AXE_MEDIA_FULL_DUPLEX;
  344         else
  345                 val = 0;
  346 
  347         if (sc->axe_flags & AX178 || sc->axe_flags & AX772) {
  348                 val |= (AXE_178_MEDIA_RX_EN | AXE_178_MEDIA_MAGIC);
  349 
  350                 switch (IFM_SUBTYPE(mii->mii_media_active)) {
  351                 case IFM_1000_T:
  352                         val |= AXE_178_MEDIA_GMII | AXE_178_MEDIA_ENCK;
  353                         break;
  354                 case IFM_100_TX:
  355                         val |= AXE_178_MEDIA_100TX;
  356                         break;
  357                 case IFM_10_T:
  358                         /* doesn't need to be handled */
  359                         break;
  360                 }
  361         }
  362 
  363         DPRINTF(("axe_miibus_statchg: val=0x%x\n", val));
  364         err = axe_cmd(sc, AXE_CMD_WRITE_MEDIA, 0, val, NULL);
  365         if (err) {
  366                 printf("%s: media change failed\n", sc->axe_dev.dv_xname);
  367                 return;
  368         }
  369 }
  370 
  371 /*
  372  * Set media options.
  373  */
  374 int
  375 axe_ifmedia_upd(struct ifnet *ifp)
  376 {
  377         struct axe_softc        *sc = ifp->if_softc;
  378         struct mii_data         *mii = GET_MII(sc);
  379 
  380         sc->axe_link = 0;
  381         if (mii->mii_instance) {
  382                 struct mii_softc        *miisc;
  383                 LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
  384                         mii_phy_reset(miisc);
  385         }
  386         mii_mediachg(mii);
  387 
  388         return (0);
  389 }
  390 
  391 /*
  392  * Report current media status.
  393  */
  394 void
  395 axe_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
  396 {
  397         struct axe_softc        *sc = ifp->if_softc;
  398         struct mii_data         *mii = GET_MII(sc);
  399 
  400         mii_pollstat(mii);
  401         ifmr->ifm_active = mii->mii_media_active;
  402         ifmr->ifm_status = mii->mii_media_status;
  403 }
  404 
  405 void
  406 axe_setmulti(struct axe_softc *sc)
  407 {
  408         struct ifnet            *ifp;
  409         struct ether_multi *enm;
  410         struct ether_multistep step;
  411         u_int32_t               h = 0;
  412         uWord                   urxmode;
  413         u_int16_t               rxmode;
  414         u_int8_t                hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
  415 
  416         if (sc->axe_dying)
  417                 return;
  418 
  419         ifp = GET_IFP(sc);
  420 
  421         axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, urxmode);
  422         rxmode = UGETW(urxmode);
  423 
  424         if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
  425 allmulti:
  426                 rxmode |= AXE_RXCMD_ALLMULTI;
  427                 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL);
  428                 return;
  429         } else
  430                 rxmode &= ~AXE_RXCMD_ALLMULTI;
  431 
  432         /* now program new ones */
  433         ETHER_FIRST_MULTI(step, &sc->arpcom, enm);
  434         while (enm != NULL) {
  435                 if (memcmp(enm->enm_addrlo, enm->enm_addrhi,
  436                            ETHER_ADDR_LEN) != 0)
  437                         goto allmulti;
  438 
  439                 h = ether_crc32_be(enm->enm_addrlo, ETHER_ADDR_LEN) >> 26;
  440                 hashtbl[h / 8] |= 1 << (h % 8);
  441                 ETHER_NEXT_MULTI(step, enm);
  442         }
  443 
  444         ifp->if_flags &= ~IFF_ALLMULTI;
  445         axe_cmd(sc, AXE_CMD_WRITE_MCAST, 0, 0, (void *)&hashtbl);
  446         axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL);
  447         return;
  448 }
  449 
  450 void
  451 axe_reset(struct axe_softc *sc)
  452 {
  453         if (sc->axe_dying)
  454                 return;
  455         /* XXX What to reset? */
  456 
  457         /* Wait a little while for the chip to get its brains in order. */
  458         DELAY(1000);
  459         return;
  460 }
  461 
  462 void
  463 axe_ax88178_init(struct axe_softc *sc)
  464 {
  465         int gpio0 = 0, phymode = 0;
  466         u_int16_t eeprom;
  467 
  468         axe_cmd(sc, AXE_CMD_SROM_WR_ENABLE, 0, 0, NULL);
  469         /* XXX magic */
  470         axe_cmd(sc, AXE_CMD_SROM_READ, 0, 0x0017, &eeprom);
  471         axe_cmd(sc, AXE_CMD_SROM_WR_DISABLE, 0, 0, NULL);
  472 
  473         eeprom = letoh16(eeprom);
  474 
  475         DPRINTF((" EEPROM is 0x%x\n", eeprom));
  476 
  477         /* if EEPROM is invalid we have to use to GPIO0 */
  478         if (eeprom == 0xffff) {
  479                 phymode = 0;
  480                 gpio0 = 1;
  481         } else {
  482                 phymode = eeprom & 7;
  483                 gpio0 = (eeprom & 0x80) ? 0 : 1;
  484         }
  485 
  486         DPRINTF(("use gpio0: %d, phymode %d\n", gpio0, phymode));
  487 
  488         axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x008c, NULL);
  489         usbd_delay_ms(sc->axe_udev, 40);
  490         if ((eeprom >> 8) != 1) {
  491                 axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x003c, NULL);
  492                 usbd_delay_ms(sc->axe_udev, 30);
  493 
  494                 axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x001c, NULL);
  495                 usbd_delay_ms(sc->axe_udev, 300);
  496 
  497                 axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x003c, NULL);
  498                 usbd_delay_ms(sc->axe_udev, 30);
  499         } else {
  500                 DPRINTF(("axe gpio phymode == 1 path\n"));
  501                 axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x0004, NULL);
  502                 usbd_delay_ms(sc->axe_udev, 30);
  503                 axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x000c, NULL);
  504                 usbd_delay_ms(sc->axe_udev, 30);
  505         }
  506 
  507         /* soft reset */
  508         axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, AXE_SW_RESET_CLEAR, NULL);
  509         usbd_delay_ms(sc->axe_udev, 150);
  510         axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0,
  511             AXE_SW_RESET_PRL | AXE_178_RESET_MAGIC, NULL);
  512         usbd_delay_ms(sc->axe_udev, 150);
  513         axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, 0, NULL);
  514 }
  515 
  516 void
  517 axe_ax88772_init(struct axe_softc *sc)
  518 {
  519         axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x00b0, NULL);
  520         usbd_delay_ms(sc->axe_udev, 40);
  521 
  522         if (sc->axe_phyaddrs[1] == AXE_INTPHY) {
  523                 /* ask for the embedded PHY */
  524                 axe_cmd(sc, AXE_CMD_SW_PHY_SELECT, 0, 0x01, NULL);
  525                 usbd_delay_ms(sc->axe_udev, 10);
  526 
  527                 /* power down and reset state, pin reset state */
  528                 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, AXE_SW_RESET_CLEAR, NULL);
  529                 usbd_delay_ms(sc->axe_udev, 60);
  530 
  531                 /* power down/reset state, pin operating state */
  532                 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0,
  533                     AXE_SW_RESET_IPPD | AXE_SW_RESET_PRL, NULL);
  534                 usbd_delay_ms(sc->axe_udev, 150);
  535 
  536                 /* power up, reset */
  537                 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, AXE_SW_RESET_PRL, NULL);
  538 
  539                 /* power up, operating */
  540                 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0,
  541                     AXE_SW_RESET_IPRL | AXE_SW_RESET_PRL, NULL);
  542         } else {
  543                 /* ask for external PHY */
  544                 axe_cmd(sc, AXE_CMD_SW_PHY_SELECT, 0, 0x00, NULL);
  545                 usbd_delay_ms(sc->axe_udev, 10);
  546 
  547                 /* power down internal PHY */
  548                 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0,
  549                     AXE_SW_RESET_IPPD | AXE_SW_RESET_PRL, NULL);
  550         }
  551 
  552         usbd_delay_ms(sc->axe_udev, 150);
  553         axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, 0, NULL);
  554 }
  555 
  556 /*
  557  * Probe for a AX88172 chip.
  558  */
  559 int
  560 axe_match(struct device *parent, void *match, void *aux)
  561 {
  562         struct usb_attach_arg *uaa = aux;
  563 
  564         if (!uaa->iface)
  565                 return(UMATCH_NONE);
  566 
  567         return (axe_lookup(uaa->vendor, uaa->product) != NULL ?
  568                 UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
  569 }
  570 
  571 /*
  572  * Attach the interface. Allocate softc structures, do ifmedia
  573  * setup and ethernet/BPF attach.
  574  */
  575 void
  576 axe_attach(struct device *parent, struct device *self, void *aux)
  577 {
  578         struct axe_softc *sc = (struct axe_softc *)self;
  579         struct usb_attach_arg *uaa = aux;
  580         usbd_device_handle dev = uaa->device;
  581         usbd_status err;
  582         usb_interface_descriptor_t *id;
  583         usb_endpoint_descriptor_t *ed;
  584         struct mii_data *mii;
  585         u_char eaddr[ETHER_ADDR_LEN];
  586         char *devinfop;
  587         char *devname = sc->axe_dev.dv_xname;
  588         struct ifnet *ifp;
  589         int i, s;
  590 
  591         devinfop = usbd_devinfo_alloc(dev, 0);
  592         printf("\n");
  593 
  594         sc->axe_unit = self->dv_unit; /*device_get_unit(self);*/
  595 
  596         err = usbd_set_config_no(dev, AXE_CONFIG_NO, 1);
  597         if (err) {
  598                 printf("axe%d: getting interface handle failed\n",
  599                     sc->axe_unit);
  600                 usbd_devinfo_free(devinfop);
  601                 return;
  602         }
  603 
  604         sc->axe_flags = axe_lookup(uaa->vendor, uaa->product)->axe_flags;
  605 
  606         usb_init_task(&sc->axe_tick_task, axe_tick_task, sc);
  607         rw_init(&sc->axe_mii_lock, "axemii");
  608         usb_init_task(&sc->axe_stop_task, (void (*)(void *))axe_stop, sc);
  609 
  610         err = usbd_device2interface_handle(dev, AXE_IFACE_IDX, &sc->axe_iface);
  611         if (err) {
  612                 printf("axe%d: getting interface handle failed\n",
  613                     sc->axe_unit);
  614                 usbd_devinfo_free(devinfop);
  615                 return;
  616         }
  617 
  618         sc->axe_udev = dev;
  619         sc->axe_product = uaa->product;
  620         sc->axe_vendor = uaa->vendor;
  621 
  622         id = usbd_get_interface_descriptor(sc->axe_iface);
  623 
  624         printf("%s: %s", sc->axe_dev.dv_xname, devinfop);
  625         usbd_devinfo_free(devinfop);
  626 
  627         /* decide on what our bufsize will be */
  628         if (sc->axe_flags & AX178 || sc->axe_flags & AX772)
  629                 sc->axe_bufsz = (sc->axe_udev->speed == USB_SPEED_HIGH) ?
  630                     AXE_178_MAX_BUFSZ : AXE_178_MIN_BUFSZ;
  631         else
  632                 sc->axe_bufsz = AXE_172_BUFSZ;
  633 
  634         /* Find endpoints. */
  635         for (i = 0; i < id->bNumEndpoints; i++) {
  636                 ed = usbd_interface2endpoint_descriptor(sc->axe_iface, i);
  637                 if (!ed) {
  638                         printf(" couldn't get ep %d\n", i);
  639                         return;
  640                 }
  641                 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
  642                     UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
  643                         sc->axe_ed[AXE_ENDPT_RX] = ed->bEndpointAddress;
  644                 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
  645                            UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
  646                         sc->axe_ed[AXE_ENDPT_TX] = ed->bEndpointAddress;
  647                 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
  648                            UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
  649                         sc->axe_ed[AXE_ENDPT_INTR] = ed->bEndpointAddress;
  650                 }
  651         }
  652 
  653         s = splnet();
  654 
  655         /* We need the PHYID for init dance in some cases */
  656         axe_cmd(sc, AXE_CMD_READ_PHYID, 0, 0, (void *)&sc->axe_phyaddrs);
  657 
  658         DPRINTF((" phyaddrs[0]: %x phyaddrs[1]: %x\n",
  659             sc->axe_phyaddrs[0], sc->axe_phyaddrs[1]));
  660 
  661         if (sc->axe_flags & AX178) {
  662                 axe_ax88178_init(sc);
  663                 printf(", AX88178");
  664         } else if (sc->axe_flags & AX772) {
  665                 axe_ax88772_init(sc);
  666                 printf(", AX88772");
  667         } else
  668                 printf(", AX88172");
  669 
  670         /*
  671          * Get station address.
  672          */
  673         if (sc->axe_flags & AX178 || sc->axe_flags & AX772)
  674                 axe_cmd(sc, AXE_178_CMD_READ_NODEID, 0, 0, &eaddr);
  675         else
  676                 axe_cmd(sc, AXE_172_CMD_READ_NODEID, 0, 0, &eaddr);
  677 
  678         /*
  679          * Load IPG values
  680          */
  681         axe_cmd(sc, AXE_CMD_READ_IPG012, 0, 0, (void *)&sc->axe_ipgs);
  682 
  683         /*
  684          * Work around broken adapters that appear to lie about
  685          * their PHY addresses.
  686          */
  687         sc->axe_phyaddrs[0] = sc->axe_phyaddrs[1] = 0xFF;
  688 
  689         /*
  690          * An ASIX chip was detected. Inform the world.
  691          */
  692         printf(", address %s\n", ether_sprintf(eaddr));
  693 
  694         bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
  695 
  696         /* Initialize interface info.*/
  697         ifp = &sc->arpcom.ac_if;
  698         ifp->if_softc = sc;
  699         strlcpy(ifp->if_xname, devname, IFNAMSIZ);
  700         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
  701         ifp->if_ioctl = axe_ioctl;
  702         ifp->if_start = axe_start;
  703 
  704         ifp->if_watchdog = axe_watchdog;
  705 
  706 /*      ifp->if_baudrate = 10000000; */
  707 /*      ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;*/
  708 
  709         IFQ_SET_READY(&ifp->if_snd);
  710 
  711         /* Initialize MII/media info. */
  712         mii = &sc->axe_mii;
  713         mii->mii_ifp = ifp;
  714         mii->mii_readreg = axe_miibus_readreg;
  715         mii->mii_writereg = axe_miibus_writereg;
  716         mii->mii_statchg = axe_miibus_statchg;
  717         mii->mii_flags = MIIF_AUTOTSLEEP;
  718 
  719         ifmedia_init(&mii->mii_media, 0, axe_ifmedia_upd, axe_ifmedia_sts);
  720         mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0);
  721 
  722         if (LIST_FIRST(&mii->mii_phys) == NULL) {
  723                 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL);
  724                 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE);
  725         } else
  726                 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO);
  727 
  728         /* Attach the interface. */
  729         if_attach(ifp);
  730         ether_ifattach(ifp);
  731 
  732         timeout_set(&sc->axe_stat_ch, NULL, NULL);
  733 
  734         sc->axe_attached = 1;
  735         splx(s);
  736 
  737         usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->axe_udev,
  738                            &sc->axe_dev);
  739 }
  740 
  741 int
  742 axe_detach(struct device *self, int flags)
  743 {
  744         struct axe_softc        *sc = (struct axe_softc *)self;
  745         int                     s;
  746         struct ifnet            *ifp = GET_IFP(sc);
  747 
  748         DPRINTFN(2,("%s: %s: enter\n", sc->axe_dev.dv_xname, __func__));
  749 
  750         /* Detached before attached finished, so just bail out. */
  751         if (!sc->axe_attached)
  752                 return (0);
  753 
  754         timeout_del(&sc->axe_stat_ch);
  755 
  756         sc->axe_dying = 1;
  757 
  758         ether_ifdetach(ifp);
  759 
  760         if (sc->axe_ep[AXE_ENDPT_TX] != NULL)
  761                 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_TX]);
  762         if (sc->axe_ep[AXE_ENDPT_RX] != NULL)
  763                 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_RX]);
  764         if (sc->axe_ep[AXE_ENDPT_INTR] != NULL)
  765                 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]);
  766 
  767         /*
  768          * Remove any pending tasks.  They cannot be executing because they run
  769          * in the same thread as detach.
  770          */
  771         usb_rem_task(sc->axe_udev, &sc->axe_tick_task);
  772         usb_rem_task(sc->axe_udev, &sc->axe_stop_task);
  773 
  774         s = splusb();
  775 
  776         if (--sc->axe_refcnt >= 0) {
  777                 /* Wait for processes to go away */
  778                 usb_detach_wait(&sc->axe_dev);
  779         }
  780 
  781         if (ifp->if_flags & IFF_RUNNING)
  782                 axe_stop(sc);
  783 
  784         mii_detach(&sc->axe_mii, MII_PHY_ANY, MII_OFFSET_ANY);
  785         ifmedia_delete_instance(&sc->axe_mii.mii_media, IFM_INST_ANY);
  786         ether_ifdetach(ifp);
  787         if_detach(ifp);
  788 
  789 #ifdef DIAGNOSTIC
  790         if (sc->axe_ep[AXE_ENDPT_TX] != NULL ||
  791             sc->axe_ep[AXE_ENDPT_RX] != NULL ||
  792             sc->axe_ep[AXE_ENDPT_INTR] != NULL)
  793                 printf("%s: detach has active endpoints\n",
  794                     sc->axe_dev.dv_xname);
  795 #endif
  796 
  797         sc->axe_attached = 0;
  798 
  799         if (--sc->axe_refcnt >= 0) {
  800                 /* Wait for processes to go away. */
  801                 usb_detach_wait(&sc->axe_dev);
  802         }
  803         splx(s);
  804 
  805         usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->axe_udev,
  806                            &sc->axe_dev);
  807 
  808         return (0);
  809 }
  810 
  811 int
  812 axe_activate(struct device *self, enum devact act)
  813 {
  814         struct axe_softc *sc = (struct axe_softc *)self;
  815 
  816         DPRINTFN(2,("%s: %s: enter\n", sc->axe_dev.dv_xname, __func__));
  817 
  818         switch (act) {
  819         case DVACT_ACTIVATE:
  820                 break;
  821 
  822         case DVACT_DEACTIVATE:
  823                 sc->axe_dying = 1;
  824                 break;
  825         }
  826         return (0);
  827 }
  828 
  829 struct mbuf *
  830 axe_newbuf(void)
  831 {
  832         struct mbuf             *m;
  833 
  834         MGETHDR(m, M_DONTWAIT, MT_DATA);
  835         if (m == NULL)
  836                 return (NULL);
  837 
  838         MCLGET(m, M_DONTWAIT);
  839         if (!(m->m_flags & M_EXT)) {
  840                 m_freem(m);
  841                 return (NULL);
  842         }
  843 
  844         m->m_len = m->m_pkthdr.len = MCLBYTES;
  845         m_adj(m, ETHER_ALIGN);
  846 
  847         return (m);
  848 }
  849 
  850 int
  851 axe_rx_list_init(struct axe_softc *sc)
  852 {
  853         struct axe_cdata *cd;
  854         struct axe_chain *c;
  855         int i;
  856 
  857         DPRINTF(("%s: %s: enter\n", sc->axe_dev.dv_xname, __func__));
  858 
  859         cd = &sc->axe_cdata;
  860         for (i = 0; i < AXE_RX_LIST_CNT; i++) {
  861                 c = &cd->axe_rx_chain[i];
  862                 c->axe_sc = sc;
  863                 c->axe_idx = i;
  864                 c->axe_mbuf = NULL;
  865                 if (c->axe_xfer == NULL) {
  866                         c->axe_xfer = usbd_alloc_xfer(sc->axe_udev);
  867                         if (c->axe_xfer == NULL)
  868                                 return (ENOBUFS);
  869                         c->axe_buf = usbd_alloc_buffer(c->axe_xfer,
  870                             sc->axe_bufsz);
  871                         if (c->axe_buf == NULL) {
  872                                 usbd_free_xfer(c->axe_xfer);
  873                                 return (ENOBUFS);
  874                         }
  875                 }
  876         }
  877 
  878         return (0);
  879 }
  880 
  881 int
  882 axe_tx_list_init(struct axe_softc *sc)
  883 {
  884         struct axe_cdata *cd;
  885         struct axe_chain *c;
  886         int i;
  887 
  888         DPRINTF(("%s: %s: enter\n", sc->axe_dev.dv_xname, __func__));
  889 
  890         cd = &sc->axe_cdata;
  891         for (i = 0; i < AXE_TX_LIST_CNT; i++) {
  892                 c = &cd->axe_tx_chain[i];
  893                 c->axe_sc = sc;
  894                 c->axe_idx = i;
  895                 c->axe_mbuf = NULL;
  896                 if (c->axe_xfer == NULL) {
  897                         c->axe_xfer = usbd_alloc_xfer(sc->axe_udev);
  898                         if (c->axe_xfer == NULL)
  899                                 return (ENOBUFS);
  900                         c->axe_buf = usbd_alloc_buffer(c->axe_xfer,
  901                             sc->axe_bufsz);
  902                         if (c->axe_buf == NULL) {
  903                                 usbd_free_xfer(c->axe_xfer);
  904                                 return (ENOBUFS);
  905                         }
  906                 }
  907         }
  908 
  909         return (0);
  910 }
  911 
  912 /*
  913  * A frame has been uploaded: pass the resulting mbuf chain up to
  914  * the higher level protocols.
  915  */
  916 void
  917 axe_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
  918 {
  919         struct axe_chain        *c = (struct axe_chain *)priv;
  920         struct axe_softc        *sc = c->axe_sc;
  921         struct ifnet            *ifp = GET_IFP(sc);
  922         u_char                  *buf = c->axe_buf;
  923         u_int32_t               total_len;
  924         u_int16_t               pktlen = 0;
  925         struct mbuf             *m;
  926         struct axe_sframe_hdr   hdr;
  927         int                     s;
  928 
  929         DPRINTFN(10,("%s: %s: enter\n", sc->axe_dev.dv_xname,__func__));
  930 
  931         if (sc->axe_dying)
  932                 return;
  933 
  934         if (!(ifp->if_flags & IFF_RUNNING))
  935                 return;
  936 
  937         if (status != USBD_NORMAL_COMPLETION) {
  938                 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
  939                         return;
  940                 if (usbd_ratecheck(&sc->axe_rx_notice)) {
  941                         printf("%s: usb errors on rx: %s\n",
  942                             sc->axe_dev.dv_xname, usbd_errstr(status));
  943                 }
  944                 if (status == USBD_STALLED)
  945                         usbd_clear_endpoint_stall_async(sc->axe_ep[AXE_ENDPT_RX]);
  946                 goto done;
  947         }
  948 
  949         usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
  950 
  951         do {
  952                 if (sc->axe_flags & AX178 || sc->axe_flags & AX772) {
  953                         if (total_len < sizeof(hdr)) {
  954                                 ifp->if_ierrors++;
  955                                 goto done;
  956                         }
  957 
  958                         buf += pktlen;
  959 
  960                         memcpy(&hdr, buf, sizeof(hdr));
  961                         total_len -= sizeof(hdr);
  962 
  963                         if ((hdr.len ^ hdr.ilen) != 0xffff) {
  964                                 ifp->if_ierrors++;
  965                                 goto done;
  966                         }
  967                         pktlen = letoh16(hdr.len);
  968                         if (pktlen > total_len) {
  969                                 ifp->if_ierrors++;
  970                                 goto done;
  971                         }
  972 
  973                         buf += sizeof(hdr);
  974 
  975                         if ((pktlen % 2) != 0)
  976                                 pktlen++;
  977 
  978                         if ((total_len - pktlen) < 0)
  979                                 total_len = 0;
  980                         else
  981                                 total_len -= pktlen;
  982                 } else {
  983                         pktlen = total_len; /* crc on the end? */
  984                         total_len = 0;
  985                 }
  986 
  987                 m = axe_newbuf();
  988                 if (m == NULL) {
  989                         ifp->if_ierrors++;
  990                         goto done;
  991                 }
  992 
  993                 ifp->if_ipackets++;
  994                 m->m_pkthdr.rcvif = ifp;
  995                 m->m_pkthdr.len = m->m_len = pktlen;
  996 
  997                 memcpy(mtod(m, char *), buf, pktlen);
  998 
  999                 /* push the packet up */
 1000                 s = splnet();
 1001 #if NBPFILTER > 0
 1002                 if (ifp->if_bpf)
 1003                         bpf_mtap(ifp->if_bpf, m, BPF_DIRECTION_IN);
 1004 #endif
 1005 
 1006                 ether_input_mbuf(ifp, m);
 1007 
 1008                 splx(s);
 1009 
 1010         } while (total_len > 0);
 1011 
 1012 done:
 1013         memset(c->axe_buf, 0, sc->axe_bufsz);
 1014 
 1015         /* Setup new transfer. */
 1016         usbd_setup_xfer(xfer, sc->axe_ep[AXE_ENDPT_RX],
 1017             c, c->axe_buf, sc->axe_bufsz,
 1018             USBD_SHORT_XFER_OK | USBD_NO_COPY,
 1019             USBD_NO_TIMEOUT, axe_rxeof);
 1020         usbd_transfer(xfer);
 1021 
 1022         DPRINTFN(10,("%s: %s: start rx\n", sc->axe_dev.dv_xname, __func__));
 1023 
 1024         return;
 1025 }
 1026 
 1027 /*
 1028  * A frame was downloaded to the chip. It's safe for us to clean up
 1029  * the list buffers.
 1030  */
 1031 
 1032 void
 1033 axe_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
 1034 {
 1035         struct axe_softc        *sc;
 1036         struct axe_chain        *c;
 1037         struct ifnet            *ifp;
 1038         int                     s;
 1039 
 1040         c = priv;
 1041         sc = c->axe_sc;
 1042         ifp = &sc->arpcom.ac_if;
 1043 
 1044         if (sc->axe_dying)
 1045                 return;
 1046 
 1047         s = splnet();
 1048 
 1049         if (status != USBD_NORMAL_COMPLETION) {
 1050                 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
 1051                         splx(s);
 1052                         return;
 1053                 }
 1054                 ifp->if_oerrors++;
 1055                 printf("axe%d: usb error on tx: %s\n", sc->axe_unit,
 1056                     usbd_errstr(status));
 1057                 if (status == USBD_STALLED)
 1058                         usbd_clear_endpoint_stall_async(sc->axe_ep[AXE_ENDPT_TX]);
 1059                 splx(s);
 1060                 return;
 1061         }
 1062 
 1063         ifp->if_timer = 0;
 1064         ifp->if_flags &= ~IFF_OACTIVE;
 1065 
 1066         m_freem(c->axe_mbuf);
 1067         c->axe_mbuf = NULL;
 1068 
 1069         if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
 1070                 axe_start(ifp);
 1071 
 1072         ifp->if_opackets++;
 1073         splx(s);
 1074         return;
 1075 }
 1076 
 1077 void
 1078 axe_tick(void *xsc)
 1079 {
 1080         struct axe_softc *sc = xsc;
 1081 
 1082         if (sc == NULL)
 1083                 return;
 1084 
 1085         DPRINTFN(0xff, ("%s: %s: enter\n", sc->axe_dev.dv_xname,
 1086                         __func__));
 1087 
 1088         if (sc->axe_dying)
 1089                 return;
 1090 
 1091         /* Perform periodic stuff in process context */
 1092         usb_add_task(sc->axe_udev, &sc->axe_tick_task);
 1093 
 1094 }
 1095 
 1096 void
 1097 axe_tick_task(void *xsc)
 1098 {
 1099         int                     s;
 1100         struct axe_softc        *sc;
 1101         struct ifnet            *ifp;
 1102         struct mii_data         *mii;
 1103 
 1104         sc = xsc;
 1105 
 1106         if (sc == NULL)
 1107                 return;
 1108 
 1109         if (sc->axe_dying)
 1110                 return;
 1111 
 1112         ifp = GET_IFP(sc);
 1113         mii = GET_MII(sc);
 1114         if (mii == NULL)
 1115                 return;
 1116 
 1117         s = splnet();
 1118 
 1119         mii_tick(mii);
 1120         if (!sc->axe_link && mii->mii_media_status & IFM_ACTIVE &&
 1121             IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
 1122                 DPRINTF(("%s: %s: got link\n",
 1123                          sc->axe_dev.dv_xname, __func__));
 1124                 sc->axe_link++;
 1125                 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
 1126                            axe_start(ifp);
 1127         }
 1128 
 1129         timeout_del(&sc->axe_stat_ch);
 1130         timeout_set(&sc->axe_stat_ch, axe_tick, sc);
 1131         timeout_add(&sc->axe_stat_ch, hz);
 1132 
 1133         splx(s);
 1134 }
 1135 
 1136 int
 1137 axe_encap(struct axe_softc *sc, struct mbuf *m, int idx)
 1138 {
 1139         struct axe_chain        *c;
 1140         usbd_status             err;
 1141         struct axe_sframe_hdr   hdr;
 1142         int                     length, boundary;
 1143 
 1144         c = &sc->axe_cdata.axe_tx_chain[idx];
 1145 
 1146         if (sc->axe_flags & AX178 || sc->axe_flags & AX772) {
 1147                 boundary = (sc->axe_udev->speed == USB_SPEED_HIGH) ? 512 : 64;
 1148 
 1149                 hdr.len = htole16(m->m_pkthdr.len);
 1150                 hdr.ilen = ~hdr.len;
 1151 
 1152                 memcpy(c->axe_buf, &hdr, sizeof(hdr));
 1153                 length = sizeof(hdr);
 1154 
 1155                 m_copydata(m, 0, m->m_pkthdr.len, c->axe_buf + length);
 1156                 length += m->m_pkthdr.len;
 1157 
 1158                 if ((length % boundary) == 0) {
 1159                         hdr.len = 0x0000;
 1160                         hdr.ilen = 0xffff;
 1161                         memcpy(c->axe_buf + length, &hdr, sizeof(hdr));
 1162                         length += sizeof(hdr);
 1163                 }
 1164 
 1165         } else {
 1166                 m_copydata(m, 0, m->m_pkthdr.len, c->axe_buf);
 1167                 length = m->m_pkthdr.len;
 1168         }
 1169 
 1170         c->axe_mbuf = m;
 1171 
 1172         usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_TX],
 1173             c, c->axe_buf, length, USBD_FORCE_SHORT_XFER | USBD_NO_COPY,
 1174             10000, axe_txeof);
 1175 
 1176         /* Transmit */
 1177         err = usbd_transfer(c->axe_xfer);
 1178         if (err != USBD_IN_PROGRESS) {
 1179                 axe_stop(sc);
 1180                 return(EIO);
 1181         }
 1182 
 1183         sc->axe_cdata.axe_tx_cnt++;
 1184 
 1185         return(0);
 1186 }
 1187 
 1188 void
 1189 axe_start(struct ifnet *ifp)
 1190 {
 1191         struct axe_softc        *sc;
 1192         struct mbuf             *m_head = NULL;
 1193 
 1194         sc = ifp->if_softc;
 1195 
 1196         if (!sc->axe_link)
 1197                 return;
 1198 
 1199         if (ifp->if_flags & IFF_OACTIVE)
 1200                 return;
 1201 
 1202         IFQ_POLL(&ifp->if_snd, m_head);
 1203         if (m_head == NULL)
 1204                 return;
 1205 
 1206         if (axe_encap(sc, m_head, 0)) {
 1207                 ifp->if_flags |= IFF_OACTIVE;
 1208                 return;
 1209         }
 1210         IFQ_DEQUEUE(&ifp->if_snd, m_head);
 1211 
 1212         /*
 1213          * If there's a BPF listener, bounce a copy of this frame
 1214          * to him.
 1215          */
 1216 #if NBPFILTER > 0
 1217         if (ifp->if_bpf)
 1218                 bpf_mtap(ifp->if_bpf, m_head, BPF_DIRECTION_OUT);
 1219 #endif
 1220 
 1221         ifp->if_flags |= IFF_OACTIVE;
 1222 
 1223         /*
 1224          * Set a timeout in case the chip goes out to lunch.
 1225          */
 1226         ifp->if_timer = 5;
 1227 
 1228         return;
 1229 }
 1230 
 1231 void
 1232 axe_init(void *xsc)
 1233 {
 1234         struct axe_softc        *sc = xsc;
 1235         struct ifnet            *ifp = &sc->arpcom.ac_if;
 1236         struct axe_chain        *c;
 1237         usbd_status             err;
 1238         int                     rxmode;
 1239         int                     i, s;
 1240 
 1241         s = splnet();
 1242 
 1243         /*
 1244          * Cancel pending I/O and free all RX/TX buffers.
 1245          */
 1246         axe_reset(sc);
 1247 
 1248         /* Enable RX logic. */
 1249 
 1250         /* Init RX ring. */
 1251         if (axe_rx_list_init(sc) == ENOBUFS) {
 1252                 printf("axe%d: rx list init failed\n", sc->axe_unit);
 1253                 splx(s);
 1254                 return;
 1255         }
 1256 
 1257         /* Init TX ring. */
 1258         if (axe_tx_list_init(sc) == ENOBUFS) {
 1259                 printf("axe%d: tx list init failed\n", sc->axe_unit);
 1260                 splx(s);
 1261                 return;
 1262         }
 1263 
 1264         /* Set transmitter IPG values */
 1265         if (sc->axe_flags & AX178 || sc->axe_flags & AX772)
 1266                 axe_cmd(sc, AXE_178_CMD_WRITE_IPG012, sc->axe_ipgs[2],
 1267                     (sc->axe_ipgs[1] << 8) | (sc->axe_ipgs[0]), NULL);
 1268         else {
 1269                 axe_cmd(sc, AXE_172_CMD_WRITE_IPG0, 0, sc->axe_ipgs[0], NULL);
 1270                 axe_cmd(sc, AXE_172_CMD_WRITE_IPG1, 0, sc->axe_ipgs[1], NULL);
 1271                 axe_cmd(sc, AXE_172_CMD_WRITE_IPG2, 0, sc->axe_ipgs[2], NULL);
 1272         }
 1273 
 1274         /* Enable receiver, set RX mode */
 1275         rxmode = AXE_RXCMD_MULTICAST|AXE_RXCMD_ENABLE;
 1276         if (sc->axe_flags & AX178 || sc->axe_flags & AX772) {
 1277                 if (sc->axe_udev->speed == USB_SPEED_HIGH) {
 1278                         /* largest possible USB buffer size for AX88178 */
 1279                         rxmode |= AXE_178_RXCMD_MFB;
 1280                 }
 1281         } else
 1282                 rxmode |= AXE_172_RXCMD_UNICAST;
 1283 
 1284         /* If we want promiscuous mode, set the allframes bit. */
 1285         if (ifp->if_flags & IFF_PROMISC)
 1286                 rxmode |= AXE_RXCMD_PROMISC;
 1287 
 1288         if (ifp->if_flags & IFF_BROADCAST)
 1289                 rxmode |= AXE_RXCMD_BROADCAST;
 1290 
 1291         axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL);
 1292 
 1293         /* Load the multicast filter. */
 1294         axe_setmulti(sc);
 1295 
 1296         /* Open RX and TX pipes. */
 1297         err = usbd_open_pipe(sc->axe_iface, sc->axe_ed[AXE_ENDPT_RX],
 1298             USBD_EXCLUSIVE_USE, &sc->axe_ep[AXE_ENDPT_RX]);
 1299         if (err) {
 1300                 printf("axe%d: open rx pipe failed: %s\n",
 1301                     sc->axe_unit, usbd_errstr(err));
 1302                 splx(s);
 1303                 return;
 1304         }
 1305 
 1306         err = usbd_open_pipe(sc->axe_iface, sc->axe_ed[AXE_ENDPT_TX],
 1307             USBD_EXCLUSIVE_USE, &sc->axe_ep[AXE_ENDPT_TX]);
 1308         if (err) {
 1309                 printf("axe%d: open tx pipe failed: %s\n",
 1310                     sc->axe_unit, usbd_errstr(err));
 1311                 splx(s);
 1312                 return;
 1313         }
 1314 
 1315         /* Start up the receive pipe. */
 1316         for (i = 0; i < AXE_RX_LIST_CNT; i++) {
 1317                 c = &sc->axe_cdata.axe_rx_chain[i];
 1318                 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX],
 1319                     c, c->axe_buf, sc->axe_bufsz,
 1320                     USBD_SHORT_XFER_OK | USBD_NO_COPY,
 1321                     USBD_NO_TIMEOUT, axe_rxeof);
 1322                 usbd_transfer(c->axe_xfer);
 1323         }
 1324 
 1325         ifp->if_flags |= IFF_RUNNING;
 1326         ifp->if_flags &= ~IFF_OACTIVE;
 1327 
 1328         splx(s);
 1329 
 1330         timeout_del(&sc->axe_stat_ch);
 1331         timeout_set(&sc->axe_stat_ch, axe_tick, sc);
 1332         timeout_add(&sc->axe_stat_ch, hz);
 1333         return;
 1334 }
 1335 
 1336 int
 1337 axe_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 1338 {
 1339         struct axe_softc        *sc = ifp->if_softc;
 1340         struct ifreq            *ifr = (struct ifreq *)data;
 1341         struct ifaddr           *ifa = (struct ifaddr *)data;
 1342         struct mii_data         *mii;
 1343         uWord                   rxmode;
 1344         int                     error = 0;
 1345 
 1346         switch(cmd) {
 1347         case SIOCSIFADDR:
 1348                 ifp->if_flags |= IFF_UP;
 1349                 if (!(ifp->if_flags & IFF_RUNNING))
 1350                         axe_init(sc);
 1351 #ifdef INET
 1352                 if (ifa->ifa_addr->sa_family == AF_INET)
 1353                         arp_ifinit(&sc->arpcom, ifa);
 1354 #endif
 1355                 break;
 1356 
 1357         case SIOCSIFMTU:
 1358                 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ifp->if_hardmtu)
 1359                         error = EINVAL;
 1360                 else if (ifp->if_mtu != ifr->ifr_mtu)
 1361                         ifp->if_mtu = ifr->ifr_mtu;
 1362                 break;
 1363 
 1364         case SIOCSIFFLAGS:
 1365                 if (ifp->if_flags & IFF_UP) {
 1366                         if (ifp->if_flags & IFF_RUNNING &&
 1367                             ifp->if_flags & IFF_PROMISC &&
 1368                             !(sc->axe_if_flags & IFF_PROMISC)) {
 1369 
 1370                                 axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, rxmode);
 1371                                 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0,
 1372                                     UGETW(rxmode) | AXE_RXCMD_PROMISC, NULL);
 1373 
 1374                                 axe_setmulti(sc);
 1375                         } else if (ifp->if_flags & IFF_RUNNING &&
 1376                             !(ifp->if_flags & IFF_PROMISC) &&
 1377                             sc->axe_if_flags & IFF_PROMISC) {
 1378                                 axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, rxmode);
 1379                                 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0,
 1380                                     UGETW(rxmode) & ~AXE_RXCMD_PROMISC, NULL);
 1381                                 axe_setmulti(sc);
 1382                         } else if (!(ifp->if_flags & IFF_RUNNING))
 1383                                 axe_init(sc);
 1384                 } else {
 1385                         if (ifp->if_flags & IFF_RUNNING)
 1386                                 axe_stop(sc);
 1387                 }
 1388                 sc->axe_if_flags = ifp->if_flags;
 1389                 break;
 1390         case SIOCADDMULTI:
 1391         case SIOCDELMULTI:
 1392                 error = (cmd == SIOCADDMULTI) ?
 1393                     ether_addmulti(ifr, &sc->arpcom) :
 1394                     ether_delmulti(ifr, &sc->arpcom);
 1395 
 1396                 if (error == ENETRESET) {
 1397                         /*
 1398                          * Multicast list has changed; set the hardware
 1399                          * filter accordingly.
 1400                          */
 1401                         if (ifp->if_flags & IFF_RUNNING)
 1402                                 axe_setmulti(sc);
 1403                         error = 0;
 1404                 }
 1405                 break;
 1406         case SIOCGIFMEDIA:
 1407         case SIOCSIFMEDIA:
 1408                 mii = GET_MII(sc);
 1409                 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, cmd);
 1410                 break;
 1411 
 1412         default:
 1413                 error = EINVAL;
 1414                 break;
 1415         }
 1416 
 1417         return(error);
 1418 }
 1419 
 1420 void
 1421 axe_watchdog(struct ifnet *ifp)
 1422 {
 1423         struct axe_softc        *sc;
 1424         struct axe_chain        *c;
 1425         usbd_status             stat;
 1426         int                     s;
 1427 
 1428         sc = ifp->if_softc;
 1429 
 1430         ifp->if_oerrors++;
 1431         printf("axe%d: watchdog timeout\n", sc->axe_unit);
 1432 
 1433         s = splusb();
 1434         c = &sc->axe_cdata.axe_tx_chain[0];
 1435         usbd_get_xfer_status(c->axe_xfer, NULL, NULL, NULL, &stat);
 1436         axe_txeof(c->axe_xfer, c, stat);
 1437 
 1438         if (!IFQ_IS_EMPTY(&ifp->if_snd))
 1439                 axe_start(ifp);
 1440         splx(s);
 1441 }
 1442 
 1443 /*
 1444  * Stop the adapter and free any mbufs allocated to the
 1445  * RX and TX lists.
 1446  */
 1447 void
 1448 axe_stop(struct axe_softc *sc)
 1449 {
 1450         usbd_status             err;
 1451         struct ifnet            *ifp;
 1452         int                     i;
 1453 
 1454         axe_reset(sc);
 1455 
 1456         ifp = &sc->arpcom.ac_if;
 1457         ifp->if_timer = 0;
 1458         ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
 1459 
 1460         timeout_del(&sc->axe_stat_ch);
 1461 
 1462         /* Stop transfers. */
 1463         if (sc->axe_ep[AXE_ENDPT_RX] != NULL) {
 1464                 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_RX]);
 1465                 if (err) {
 1466                         printf("axe%d: abort rx pipe failed: %s\n",
 1467                             sc->axe_unit, usbd_errstr(err));
 1468                 }
 1469                 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_RX]);
 1470                 if (err) {
 1471                         printf("axe%d: close rx pipe failed: %s\n",
 1472                             sc->axe_unit, usbd_errstr(err));
 1473                 }
 1474                 sc->axe_ep[AXE_ENDPT_RX] = NULL;
 1475         }
 1476 
 1477         if (sc->axe_ep[AXE_ENDPT_TX] != NULL) {
 1478                 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_TX]);
 1479                 if (err) {
 1480                         printf("axe%d: abort tx pipe failed: %s\n",
 1481                             sc->axe_unit, usbd_errstr(err));
 1482                 }
 1483                 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_TX]);
 1484                 if (err) {
 1485                         printf("axe%d: close tx pipe failed: %s\n",
 1486                             sc->axe_unit, usbd_errstr(err));
 1487                 }
 1488                 sc->axe_ep[AXE_ENDPT_TX] = NULL;
 1489         }
 1490 
 1491         if (sc->axe_ep[AXE_ENDPT_INTR] != NULL) {
 1492                 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]);
 1493                 if (err) {
 1494                         printf("axe%d: abort intr pipe failed: %s\n",
 1495                             sc->axe_unit, usbd_errstr(err));
 1496                 }
 1497                 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_INTR]);
 1498                 if (err) {
 1499                         printf("axe%d: close intr pipe failed: %s\n",
 1500                             sc->axe_unit, usbd_errstr(err));
 1501                 }
 1502                 sc->axe_ep[AXE_ENDPT_INTR] = NULL;
 1503         }
 1504 
 1505         /* Free RX resources. */
 1506         for (i = 0; i < AXE_RX_LIST_CNT; i++) {
 1507                 if (sc->axe_cdata.axe_rx_chain[i].axe_mbuf != NULL) {
 1508                         m_freem(sc->axe_cdata.axe_rx_chain[i].axe_mbuf);
 1509                         sc->axe_cdata.axe_rx_chain[i].axe_mbuf = NULL;
 1510                 }
 1511                 if (sc->axe_cdata.axe_rx_chain[i].axe_xfer != NULL) {
 1512                         usbd_free_xfer(sc->axe_cdata.axe_rx_chain[i].axe_xfer);
 1513                         sc->axe_cdata.axe_rx_chain[i].axe_xfer = NULL;
 1514                 }
 1515         }
 1516 
 1517         /* Free TX resources. */
 1518         for (i = 0; i < AXE_TX_LIST_CNT; i++) {
 1519                 if (sc->axe_cdata.axe_tx_chain[i].axe_mbuf != NULL) {
 1520                         m_freem(sc->axe_cdata.axe_tx_chain[i].axe_mbuf);
 1521                         sc->axe_cdata.axe_tx_chain[i].axe_mbuf = NULL;
 1522                 }
 1523                 if (sc->axe_cdata.axe_tx_chain[i].axe_xfer != NULL) {
 1524                         usbd_free_xfer(sc->axe_cdata.axe_tx_chain[i].axe_xfer);
 1525                         sc->axe_cdata.axe_tx_chain[i].axe_xfer = NULL;
 1526                 }
 1527         }
 1528 
 1529         sc->axe_link = 0;
 1530 }
 1531 

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