Move usb to a graveyard location under sys/legacy/dev, it is intended that the

new USB2 stack will fully replace this for 8.0.

Remove kernel modules, a subsequent commit will update conf/files. Unhook
usbdevs from the build.

1 files changed, 1962 insertions, 0 deletions

diff --git a/sys/legacy/dev/usb/if_udav.c b/sys/legacy/dev/usb/if_udav.c
new file mode 100644
index 0000000..e13170e
--- /dev/null
+++ b/sys/legacy/dev/usb/if_udav.c
@@ -0,0 +1,1962 @@
+/*	$NetBSD: if_udav.c,v 1.2 2003/09/04 15:17:38 tsutsui Exp $	*/
+/*	$nabe: if_udav.c,v 1.3 2003/08/21 16:57:19 nabe Exp $	*/
+/*	$FreeBSD$	*/
+/*-
+ * Copyright (c) 2003
+ *     Shingo WATANABE <nabe@nabechan.org>.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+/*
+ * DM9601(DAVICOM USB to Ethernet MAC Controller with Integrated 10/100 PHY)
+ * The spec can be found at the following url.
+ *   http://www.davicom.com.tw/big5/download/Data%20Sheet/DM9601-DS-P01-930914.pdf
+ */
+
+/*
+ * TODO:
+ *	Interrupt Endpoint support
+ *	External PHYs
+ *	powerhook() support?
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include "opt_inet.h"
+#if defined(__NetBSD__)
+#include "opt_ns.h"
+#endif
+#if defined(__NetBSD__)
+#include "bpfilter.h"
+#endif
+#if defined(__FreeBSD__)
+#define NBPFILTER	1
+#endif
+#if defined(__NetBSD__)
+#include "rnd.h"
+#endif
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/lock.h>
+#include <sys/mbuf.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/socket.h>
+#if defined(__FreeBSD__)
+#include <sys/types.h>
+#include <sys/lockmgr.h>
+#include <sys/sockio.h>
+#endif
+
+#if defined(__NetBSD__)
+#include <sys/device.h>
+#endif
+
+#if defined(NRND) && NRND > 0
+#include <sys/rnd.h>
+#endif
+
+#include <net/if.h>
+#include <net/if_arp.h>
+#include <net/if_dl.h>
+#include <net/if_media.h>
+#include <net/ethernet.h>
+#include <net/if_types.h>
+
+#if NBPFILTER > 0
+#include <net/bpf.h>
+#endif
+#if defined(__NetBSD__)
+#ifndef BPF_MTAP
+#define	BPF_MTAP(_ifp, _m)	do {			\
+	if ((_ifp)->if_bpf)) {				\
+		bpf_mtap((_ifp)->if_bpf, (_m)) ;	\
+	}						\
+} while (0)
+#endif
+#endif
+
+#if defined(__NetBSD__)
+#include <net/if_ether.h>
+#ifdef INET
+#include <netinet/in.h>
+#include <netinet/if_inarp.h>
+#endif /* INET */
+#elif defined(__FreeBSD__) /* defined(__NetBSD__) */
+#include <netinet/in.h>
+#include <netinet/if_ether.h>
+#endif /* defined(__FreeBSD__) */
+
+#if defined(__NetBSD__)
+#ifdef NS
+#include <netns/ns.h>
+#include <netns/ns_if.h>
+#endif
+#endif /* defined (__NetBSD__) */
+
+#include <sys/bus.h>
+#include <machine/bus.h>
+
+#include <dev/mii/mii.h>
+#include <dev/mii/miivar.h>
+
+#include <dev/usb/usb_port.h>
+#include <dev/usb/usb.h>
+#include <dev/usb/usbdi.h>
+#include <dev/usb/usbdi_util.h>
+#include "usbdevs.h"
+#include <dev/usb/usbdivar.h>
+#include <dev/usb/usb_ethersubr.h>
+
+#include <dev/usb/if_udavreg.h>
+
+#if defined(__FreeBSD__)
+MODULE_DEPEND(udav, usb, 1, 1, 1);
+MODULE_DEPEND(udav, ether, 1, 1, 1);
+MODULE_DEPEND(udav, miibus, 1, 1, 1);
+#endif
+
+/* "device miibus" required.  See GENERIC if you get errors here. */
+#include "miibus_if.h"
+
+#if !defined(__FreeBSD__)
+/* Function declarations */
+USB_DECLARE_DRIVER(udav);
+#endif
+
+#if defined(__FreeBSD__)
+static device_probe_t udav_match;
+static device_attach_t udav_attach;
+static device_detach_t udav_detach;
+static device_shutdown_t udav_shutdown;
+static miibus_readreg_t udav_miibus_readreg;
+static miibus_writereg_t udav_miibus_writereg;
+static miibus_statchg_t udav_miibus_statchg;
+#endif
+
+static int udav_openpipes(struct udav_softc *);
+static void udav_start(struct ifnet *);
+static int udav_send(struct udav_softc *, struct mbuf *, int);
+static void udav_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
+#if defined(__FreeBSD__)
+static void udav_rxstart(struct ifnet *ifp);
+#endif
+static void udav_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
+static void udav_tick(void *);
+static void udav_tick_task(void *);
+static int udav_ioctl(struct ifnet *, u_long, caddr_t);
+static void udav_stop_task(struct udav_softc *);
+static void udav_stop(struct ifnet *, int);
+static void udav_watchdog(struct ifnet *);
+static int udav_ifmedia_change(struct ifnet *);
+static void udav_ifmedia_status(struct ifnet *, struct ifmediareq *);
+static void udav_lock_mii(struct udav_softc *);
+static void udav_unlock_mii(struct udav_softc *);
+#if defined(__NetBSD__)
+static int udav_miibus_readreg(device_t, int, int);
+static void udav_miibus_writereg(device_t, int, int, int);
+static void udav_miibus_statchg(device_t);
+static int udav_init(struct ifnet *);
+#elif defined(__FreeBSD__)
+static void udav_init(void *);
+#endif
+static void udav_setmulti(struct udav_softc *);
+static void udav_reset(struct udav_softc *);
+
+static int udav_csr_read(struct udav_softc *, int, void *, int);
+static int udav_csr_write(struct udav_softc *, int, void *, int);
+static int udav_csr_read1(struct udav_softc *, int);
+static int udav_csr_write1(struct udav_softc *, int, unsigned char);
+
+#if 0
+static int udav_mem_read(struct udav_softc *, int, void *, int);
+static int udav_mem_write(struct udav_softc *, int, void *, int);
+static int udav_mem_write1(struct udav_softc *, int, unsigned char);
+#endif
+
+#if defined(__FreeBSD__)
+static device_method_t udav_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_probe,		udav_match),
+	DEVMETHOD(device_attach,	udav_attach),
+	DEVMETHOD(device_detach,	udav_detach),
+	DEVMETHOD(device_shutdown,	udav_shutdown),
+
+	/* bus interface */
+	DEVMETHOD(bus_print_child,	bus_generic_print_child),
+	DEVMETHOD(bus_driver_added,	bus_generic_driver_added),
+
+	/* MII interface */
+	DEVMETHOD(miibus_readreg,	udav_miibus_readreg),
+	DEVMETHOD(miibus_writereg,	udav_miibus_writereg),
+	DEVMETHOD(miibus_statchg,	udav_miibus_statchg),
+
+	{ 0, 0 }
+};
+
+static driver_t udav_driver = {
+	"udav",
+	udav_methods,
+	sizeof(struct udav_softc)
+};
+
+static devclass_t udav_devclass;
+
+DRIVER_MODULE(udav, uhub, udav_driver, udav_devclass, usbd_driver_load, 0);
+DRIVER_MODULE(miibus, udav, miibus_driver, miibus_devclass, 0, 0);
+
+#endif /* defined(__FreeBSD__) */
+
+/* Macros */
+#ifdef UDAV_DEBUG
+#define DPRINTF(x)	if (udavdebug) printf x
+#define DPRINTFN(n,x)	if (udavdebug >= (n)) printf x
+int udavdebug = 0;
+#else
+#define DPRINTF(x)
+#define DPRINTFN(n,x)
+#endif
+
+#define delay(d)	DELAY(d)
+
+#define	UDAV_SETBIT(sc, reg, x)	\
+	udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) | (x))
+
+#define	UDAV_CLRBIT(sc, reg, x)	\
+	udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) & ~(x))
+
+static const struct udav_type {
+	struct usb_devno udav_dev;
+	u_int16_t udav_flags;
+#define UDAV_EXT_PHY	0x0001
+} udav_devs [] = {
+	/* Corega USB-TXC */
+	{{ USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TXC }, 0},
+	/* ShanTou ST268 USB NIC */
+	{{ USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ST268 }, 0},
+	/* ShanTou DM9601 USB NIC */
+	{{ USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_DM9601}, 0},
+};
+#define udav_lookup(v, p) ((const struct udav_type *)usb_lookup(udav_devs, v, p))
+
+
+/* Probe */
+static int
+udav_match(device_t self)
+{
+	struct usb_attach_arg *uaa = device_get_ivars(self);
+
+	if (uaa->iface != NULL)
+		return (UMATCH_NONE);
+
+	return (udav_lookup(uaa->vendor, uaa->product) != NULL ?
+		UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
+}
+
+/* Attach */
+static int
+udav_attach(device_t self)
+{
+	USB_ATTACH_START(udav, sc, uaa);
+	usbd_device_handle dev = uaa->device;
+	usbd_interface_handle iface;
+	usbd_status err;
+	usb_interface_descriptor_t *id;
+	usb_endpoint_descriptor_t *ed;
+	const char *devname ;
+	struct ifnet *ifp;
+#if defined(__NetBSD__)
+	struct mii_data *mii;
+#endif
+	u_char eaddr[ETHER_ADDR_LEN];
+	int i;
+#if defined(__NetBSD__)
+	int s;
+#endif
+
+	sc->sc_dev = self;
+	devname = device_get_nameunit(self);
+	/* Move the device into the configured state. */
+	err = usbd_set_config_no(dev, UDAV_CONFIG_NO, 1);
+	if (err) {
+		printf("%s: setting config no failed\n", devname);
+		goto bad;
+	}
+
+	usb_init_task(&sc->sc_tick_task, udav_tick_task, sc);
+	lockinit(&sc->sc_mii_lock, PZERO, "udavmii", 0, 0);
+	usb_init_task(&sc->sc_stop_task, (void (*)(void *)) udav_stop_task, sc);
+
+	/* get control interface */
+	err = usbd_device2interface_handle(dev, UDAV_IFACE_INDEX, &iface);
+	if (err) {
+		printf("%s: failed to get interface, err=%s\n", devname,
+		       usbd_errstr(err));
+		goto bad;
+	}
+
+	sc->sc_udev = dev;
+	sc->sc_ctl_iface = iface;
+	sc->sc_flags = udav_lookup(uaa->vendor, uaa->product)->udav_flags;
+
+	/* get interface descriptor */
+	id = usbd_get_interface_descriptor(sc->sc_ctl_iface);
+
+	/* find endpoints */
+	sc->sc_bulkin_no = sc->sc_bulkout_no = sc->sc_intrin_no = -1;
+	for (i = 0; i < id->bNumEndpoints; i++) {
+		ed = usbd_interface2endpoint_descriptor(sc->sc_ctl_iface, i);
+		if (ed == NULL) {
+			printf("%s: couldn't get endpoint %d\n", devname, i);
+			goto bad;
+		}
+		if ((ed->bmAttributes & UE_XFERTYPE) == UE_BULK &&
+		    UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN)
+			sc->sc_bulkin_no = ed->bEndpointAddress; /* RX */
+		else if ((ed->bmAttributes & UE_XFERTYPE) == UE_BULK &&
+			 UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT)
+			sc->sc_bulkout_no = ed->bEndpointAddress; /* TX */
+		else if ((ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT &&
+			 UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN)
+			sc->sc_intrin_no = ed->bEndpointAddress; /* Status */
+	}
+
+	if (sc->sc_bulkin_no == -1 || sc->sc_bulkout_no == -1 ||
+	    sc->sc_intrin_no == -1) {
+		printf("%s: missing endpoint\n", devname);
+		goto bad;
+	}
+
+#if defined(__FreeBSD__)
+	mtx_init(&sc->sc_mtx, device_get_nameunit(self), MTX_NETWORK_LOCK,
+	    MTX_DEF | MTX_RECURSE);
+#endif
+#if defined(__NetBSD__)
+	s = splnet();
+#elif defined(__FreeBSD__)
+        UDAV_LOCK(sc);
+#endif
+
+	/* reset the adapter */
+	udav_reset(sc);
+
+	/* Get Ethernet Address */
+	err = udav_csr_read(sc, UDAV_PAR, (void *)eaddr, ETHER_ADDR_LEN);
+	if (err) {
+		printf("%s: read MAC address failed\n", devname);
+#if defined(__NetBSD__)
+		splx(s);
+#elif defined(__FreeBSD__)
+                UDAV_UNLOCK(sc);
+		mtx_destroy(&sc->sc_mtx);
+#endif
+		goto bad;
+	}
+
+	/* Print Ethernet Address */
+	printf("%s: Ethernet address %s\n", devname, ether_sprintf(eaddr));
+
+	/* initialize interface infomation */
+#if defined(__FreeBSD__)
+	ifp = GET_IFP(sc) = if_alloc(IFT_ETHER);
+	if (ifp == NULL) {
+		printf("%s: can not if_alloc\n", devname);
+                UDAV_UNLOCK(sc);
+		mtx_destroy(&sc->sc_mtx);
+		goto bad;
+	}
+#else
+	ifp = GET_IFP(sc);
+#endif
+	ifp->if_softc = sc;
+	ifp->if_mtu = ETHERMTU;
+#if defined(__NetBSD__)
+	strncpy(ifp->if_xname, devname, IFNAMSIZ);
+#elif defined(__FreeBSD__)
+	if_initname(ifp, "udav",  device_get_unit(self));
+#endif
+	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST |
+	    IFF_NEEDSGIANT;
+	ifp->if_start = udav_start;
+	ifp->if_ioctl = udav_ioctl;
+	ifp->if_watchdog = udav_watchdog;
+	ifp->if_init = udav_init;
+#if defined(__NetBSD__)
+	ifp->if_stop = udav_stop;
+#endif
+#if defined(__FreeBSD__)
+	ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
+#endif
+#if defined(__NetBSD__)
+	IFQ_SET_READY(&ifp->if_snd);
+#endif
+
+
+#if defined(__NetBSD__)
+	/*
+	 * Do ifmedia setup.
+	 */
+	mii = &sc->sc_mii;
+	mii->mii_ifp = ifp;
+	mii->mii_readreg = udav_miibus_readreg;
+	mii->mii_writereg = udav_miibus_writereg;
+	mii->mii_statchg = udav_miibus_statchg;
+	mii->mii_flags = MIIF_AUTOTSLEEP;
+	ifmedia_init(&mii->mii_media, 0,
+		     udav_ifmedia_change, udav_ifmedia_status);
+	mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0);
+	if (LIST_FIRST(&mii->mii_phys) == NULL) {
+		ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL);
+		ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE);
+	} else
+		ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO);
+
+	/* attach the interface */
+	if_attach(ifp);
+	Ether_ifattach(ifp, eaddr);
+#elif defined(__FreeBSD__)
+	if (mii_phy_probe(self, &sc->sc_miibus,
+	    udav_ifmedia_change, udav_ifmedia_status)) {
+		printf("%s: MII without any PHY!\n", device_get_nameunit(sc->sc_dev));
+		if_free(ifp);
+		UDAV_UNLOCK(sc);
+		mtx_destroy(&sc->sc_mtx);
+		return ENXIO;
+	}
+
+	sc->sc_qdat.ifp = ifp;
+	sc->sc_qdat.if_rxstart = udav_rxstart;
+
+	/*
+	 * Call MI attach routine.
+	 */
+
+	ether_ifattach(ifp, eaddr);
+#endif
+
+#if defined(NRND) && NRND > 0
+	rnd_attach_source(&sc->rnd_source, devname, RND_TYPE_NET, 0);
+#endif
+
+	usb_callout_init(sc->sc_stat_ch);
+#if defined(__FreeBSD__)
+	usb_register_netisr();
+#endif
+	sc->sc_attached = 1;
+#if defined(__NetBSD__)
+        splx(s);
+#elif defined(__FreeBSD__)
+        UDAV_UNLOCK(sc);
+#endif
+
+	usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, dev, sc->sc_dev);
+
+	return 0;
+
+ bad:
+	sc->sc_dying = 1;
+	return ENXIO;
+}
+
+/* detach */
+static int
+udav_detach(device_t self)
+{
+	USB_DETACH_START(udav, sc);
+	struct ifnet *ifp = GET_IFP(sc);
+#if defined(__NetBSD__)
+	int s;
+#endif
+
+	DPRINTF(("%s: %s: enter\n", device_get_nameunit(sc->sc_dev), __func__));
+
+	/* Detached before attached finished */
+	if (!sc->sc_attached)
+		return (0);
+
+	UDAV_LOCK(sc);
+
+	usb_uncallout(sc->sc_stat_ch, udav_tick, sc);
+
+	/* Remove any pending tasks */
+	usb_rem_task(sc->sc_udev, &sc->sc_tick_task);
+	usb_rem_task(sc->sc_udev, &sc->sc_stop_task);
+
+#if defined(__NetBSD__)
+	s = splusb();
+#elif defined(__FreeBSD__)
+        UDAV_LOCK(sc);
+#endif
+
+	if (--sc->sc_refcnt >= 0) {
+		/* Wait for processes to go away */
+		usb_detach_wait(sc->sc_dev);
+	}
+#if defined(__FreeBSD__)
+	if (ifp->if_drv_flags & IFF_DRV_RUNNING)
+#else
+	if (ifp->if_flags & IFF_RUNNING)
+#endif
+		udav_stop(GET_IFP(sc), 1);
+
+#if defined(NRND) && NRND > 0
+	rnd_detach_source(&sc->rnd_source);
+#endif
+#if defined(__NetBSD__)
+	mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY);
+	ifmedia_delete_instance(&sc->sc_mii.mii_media, IFM_INST_ANY);
+#endif
+	ether_ifdetach(ifp);
+#if defined(__NetBSD__)
+	if_detach(ifp);
+#endif
+#if defined(__FreeBSD__)
+	if_free(ifp);
+#endif
+
+#ifdef DIAGNOSTIC
+	if (sc->sc_pipe_tx != NULL)
+		printf("%s: detach has active tx endpoint.\n",
+		       device_get_nameunit(sc->sc_dev));
+	if (sc->sc_pipe_rx != NULL)
+		printf("%s: detach has active rx endpoint.\n",
+		       device_get_nameunit(sc->sc_dev));
+	if (sc->sc_pipe_intr != NULL)
+		printf("%s: detach has active intr endpoint.\n",
+		       device_get_nameunit(sc->sc_dev));
+#endif
+	sc->sc_attached = 0;
+
+#if defined(__NetBSD__)
+        splx(s);
+#elif defined(__FreeBSD__)
+        UDAV_UNLOCK(sc);
+#endif
+
+#if defined(__FreeBSD__)
+	mtx_destroy(&sc->sc_mtx);
+#endif
+
+	usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev);
+	return (0);
+}
+
+#if 0
+/* read memory */
+static int
+udav_mem_read(struct udav_softc *sc, int offset, void *buf, int len)
+{
+	usb_device_request_t req;
+	usbd_status err;
+
+	if (sc == NULL)
+		return (0);
+
+	DPRINTFN(0x200,
+		("%s: %s: enter\n", device_get_nameunit(sc->sc_dev), __func__));
+
+	if (sc->sc_dying)
+		return (0);
+
+	offset &= 0xffff;
+	len &= 0xff;
+
+	req.bmRequestType = UT_READ_VENDOR_DEVICE;
+	req.bRequest = UDAV_REQ_MEM_READ;
+	USETW(req.wValue, 0x0000);
+	USETW(req.wIndex, offset);
+	USETW(req.wLength, len);
+
+	sc->sc_refcnt++;
+	err = usbd_do_request(sc->sc_udev, &req, buf);
+	if (--sc->sc_refcnt < 0)
+		usb_detach_wakeup(sc->sc_dev);
+	if (err) {
+		DPRINTF(("%s: %s: read failed. off=%04x, err=%d\n",
+			 device_get_nameunit(sc->sc_dev), __func__, offset, err));
+	}
+
+	return (err);
+}
+
+/* write memory */
+static int
+udav_mem_write(struct udav_softc *sc, int offset, void *buf, int len)
+{
+	usb_device_request_t req;
+	usbd_status err;
+
+	if (sc == NULL)
+		return (0);
+
+	DPRINTFN(0x200,
+		("%s: %s: enter\n", device_get_nameunit(sc->sc_dev), __func__));
+
+	if (sc->sc_dying)
+		return (0);
+
+	offset &= 0xffff;
+	len &= 0xff;
+
+	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
+	req.bRequest = UDAV_REQ_MEM_WRITE;
+	USETW(req.wValue, 0x0000);
+	USETW(req.wIndex, offset);
+	USETW(req.wLength, len);
+
+	sc->sc_refcnt++;
+	err = usbd_do_request(sc->sc_udev, &req, buf);
+	if (--sc->sc_refcnt < 0)
+		usb_detach_wakeup(sc->sc_dev);
+	if (err) {
+		DPRINTF(("%s: %s: write failed. off=%04x, err=%d\n",
+			 device_get_nameunit(sc->sc_dev), __func__, offset, err));
+	}
+
+	return (err);
+}
+
+/* write memory */
+static int
+udav_mem_write1(struct udav_softc *sc, int offset, unsigned char ch)
+{
+	usb_device_request_t req;
+	usbd_status err;
+
+	if (sc == NULL)
+		return (0);
+
+	DPRINTFN(0x200,
+		("%s: %s: enter\n", device_get_nameunit(sc->sc_dev), __func__));
+
+	if (sc->sc_dying)
+		return (0);
+
+	offset &= 0xffff;
+
+	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
+	req.bRequest = UDAV_REQ_MEM_WRITE1;
+	USETW(req.wValue, ch);
+	USETW(req.wIndex, offset);
+	USETW(req.wLength, 0x0000);
+
+	sc->sc_refcnt++;
+	err = usbd_do_request(sc->sc_udev, &req, NULL);
+	if (--sc->sc_refcnt < 0)
+		usb_detach_wakeup(sc->sc_dev);
+	if (err) {
+		DPRINTF(("%s: %s: write failed. off=%04x, err=%d\n",
+			 device_get_nameunit(sc->sc_dev), __func__, offset, err));
+	}
+
+	return (err);
+}
+#endif
+
+/* read register(s) */
+static int
+udav_csr_read(struct udav_softc *sc, int offset, void *buf, int len)
+{
+	usb_device_request_t req;
+	usbd_status err;
+
+	if (sc == NULL)
+		return (0);
+
+	DPRINTFN(0x200,
+		("%s: %s: enter\n", device_get_nameunit(sc->sc_dev), __func__));
+
+	if (sc->sc_dying)
+		return (0);
+
+	offset &= 0xff;
+	len &= 0xff;
+
+	req.bmRequestType = UT_READ_VENDOR_DEVICE;
+	req.bRequest = UDAV_REQ_REG_READ;
+	USETW(req.wValue, 0x0000);
+	USETW(req.wIndex, offset);
+	USETW(req.wLength, len);
+
+	sc->sc_refcnt++;
+	err = usbd_do_request(sc->sc_udev, &req, buf);
+	if (--sc->sc_refcnt < 0)
+		usb_detach_wakeup(sc->sc_dev);
+	if (err) {
+		DPRINTF(("%s: %s: read failed. off=%04x, err=%d\n",
+			 device_get_nameunit(sc->sc_dev), __func__, offset, err));
+	}
+
+	return (err);
+}
+
+/* write register(s) */
+static int
+udav_csr_write(struct udav_softc *sc, int offset, void *buf, int len)
+{
+	usb_device_request_t req;
+	usbd_status err;
+
+	if (sc == NULL)
+		return (0);
+
+	DPRINTFN(0x200,
+		("%s: %s: enter\n", device_get_nameunit(sc->sc_dev), __func__));
+
+	if (sc->sc_dying)
+		return (0);
+
+	offset &= 0xff;
+	len &= 0xff;
+
+	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
+	req.bRequest = UDAV_REQ_REG_WRITE;
+	USETW(req.wValue, 0x0000);
+	USETW(req.wIndex, offset);
+	USETW(req.wLength, len);
+
+	sc->sc_refcnt++;
+	err = usbd_do_request(sc->sc_udev, &req, buf);
+	if (--sc->sc_refcnt < 0)
+		usb_detach_wakeup(sc->sc_dev);
+	if (err) {
+		DPRINTF(("%s: %s: write failed. off=%04x, err=%d\n",
+			 device_get_nameunit(sc->sc_dev), __func__, offset, err));
+	}
+
+	return (err);
+}
+
+static int
+udav_csr_read1(struct udav_softc *sc, int offset)
+{
+	u_int8_t val = 0;
+	
+	if (sc == NULL)
+		return (0);
+
+	DPRINTFN(0x200,
+		("%s: %s: enter\n", device_get_nameunit(sc->sc_dev), __func__));
+
+	if (sc->sc_dying)
+		return (0);
+
+	return (udav_csr_read(sc, offset, &val, 1) ? 0 : val);
+}
+
+/* write a register */
+static int
+udav_csr_write1(struct udav_softc *sc, int offset, unsigned char ch)
+{
+	usb_device_request_t req;
+	usbd_status err;
+
+	if (sc == NULL)
+		return (0);
+
+	DPRINTFN(0x200,
+		("%s: %s: enter\n", device_get_nameunit(sc->sc_dev), __func__));
+
+	if (sc->sc_dying)
+		return (0);
+
+	offset &= 0xff;
+
+	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
+	req.bRequest = UDAV_REQ_REG_WRITE1;
+	USETW(req.wValue, ch);
+	USETW(req.wIndex, offset);
+	USETW(req.wLength, 0x0000);
+
+	sc->sc_refcnt++;
+	err = usbd_do_request(sc->sc_udev, &req, NULL);
+	if (--sc->sc_refcnt < 0)
+		usb_detach_wakeup(sc->sc_dev);
+	if (err) {
+		DPRINTF(("%s: %s: write failed. off=%04x, err=%d\n",
+			 device_get_nameunit(sc->sc_dev), __func__, offset, err));
+	}
+
+	return (err);
+}
+
+#if defined(__NetBSD__)
+static int
+udav_init(struct ifnet *ifp)
+#elif defined(__FreeBSD__)
+static void
+udav_init(void *xsc)
+#endif
+{
+#if defined(__NetBSD__)
+	struct udav_softc *sc = ifp->if_softc;
+#elif defined(__FreeBSD__)
+	struct udav_softc *sc = (struct udav_softc *)xsc;
+	struct ifnet	*ifp = GET_IFP(sc);
+#endif
+	struct mii_data *mii = GET_MII(sc);
+	u_char *eaddr;
+#if defined(__NetBSD__)
+	int s;
+#endif
+
+	DPRINTF(("%s: %s: enter\n", device_get_nameunit(sc->sc_dev), __func__));
+
+	if (sc->sc_dying)
+#if defined(__NetBSD__)
+		return (EIO);
+#elif defined(__FreeBSD__)
+		return ;
+#endif
+
+#if defined(__NetBSD__)
+	s = splnet();
+#elif defined(__FreeBSD__)
+        UDAV_LOCK(sc);
+#endif
+
+	/* Cancel pending I/O and free all TX/RX buffers */
+	udav_stop(ifp, 1);
+
+#if defined(__NetBSD__)
+	eaddr = LLADDR(ifp->if_sadl);
+#elif defined(__FreeBSD__)
+	eaddr = IF_LLADDR(ifp);
+#endif
+	udav_csr_write(sc, UDAV_PAR, eaddr, ETHER_ADDR_LEN);
+
+	/* Initialize network control register */
+	/*  Disable loopback  */
+	UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_LBK0 | UDAV_NCR_LBK1);
+
+	/* Initialize RX control register */
+	UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_DIS_LONG | UDAV_RCR_DIS_CRC);
+
+	/* If we want promiscuous mode, accept all physical frames. */
+	if (ifp->if_flags & IFF_PROMISC)
+		UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_ALL|UDAV_RCR_PRMSC);
+	else
+		UDAV_CLRBIT(sc, UDAV_RCR, UDAV_RCR_ALL|UDAV_RCR_PRMSC);
+
+	/* Initialize transmit ring */
+	if (usb_ether_tx_list_init(sc, &sc->sc_cdata,
+	    sc->sc_udev) == ENOBUFS) {
+		printf("%s: tx list init failed\n", device_get_nameunit(sc->sc_dev));
+#if defined(__NetBSD__)
+		splx(s);
+		return (EIO);
+#elif defined(__FreeBSD__)
+                UDAV_UNLOCK(sc);
+		return ;
+#endif
+
+	}
+
+	/* Initialize receive ring */
+	if (usb_ether_rx_list_init(sc, &sc->sc_cdata,
+	    sc->sc_udev) == ENOBUFS) {
+		printf("%s: rx list init failed\n", device_get_nameunit(sc->sc_dev));
+#if defined(__NetBSD__)
+		splx(s);
+		return (EIO);
+#elif defined(__FreeBSD__)
+                UDAV_UNLOCK(sc);
+		return ;
+#endif
+	}
+
+	/* Load the multicast filter */
+	udav_setmulti(sc);
+
+	/* Enable RX */
+	UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_RXEN);
+
+	/* clear POWER_DOWN state of internal PHY */
+	UDAV_SETBIT(sc, UDAV_GPCR, UDAV_GPCR_GEP_CNTL0);
+	UDAV_CLRBIT(sc, UDAV_GPR, UDAV_GPR_GEPIO0);
+
+	mii_mediachg(mii);
+
+	if (sc->sc_pipe_tx == NULL || sc->sc_pipe_rx == NULL) {
+		if (udav_openpipes(sc)) {
+#if defined(__NetBSD__)
+                        splx(s);
+                        return (EIO);
+#elif defined(__FreeBSD__)
+                        UDAV_UNLOCK(sc);
+                        return ;
+#endif
+		}
+	}
+
+#if defined(__FreeBSD__)
+	ifp->if_drv_flags |= IFF_DRV_RUNNING;
+	ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
+#else
+	ifp->if_flags |= IFF_RUNNING;
+	ifp->if_flags &= ~IFF_OACTIVE;
+#endif
+
+#if defined(__NetBSD__)
+	splx(s);
+#elif defined(__FreeBSD__)
+        UDAV_UNLOCK(sc);
+#endif
+
+	usb_callout(sc->sc_stat_ch, hz, udav_tick, sc);
+
+#if defined(__NetBSD__)
+	return (0);
+#elif defined(__FreeBSD__)
+	return ;
+#endif
+}
+
+static void
+udav_reset(struct udav_softc *sc)
+{
+	int i;
+
+	DPRINTF(("%s: %s: enter\n", device_get_nameunit(sc->sc_dev), __func__));
+
+	if (sc->sc_dying)
+		return;
+
+	/* Select PHY */
+#if 1
+	/*
+	 * XXX: force select internal phy.
+	 *	external phy routines are not tested.
+	 */
+	UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY);
+#else
+	if (sc->sc_flags & UDAV_EXT_PHY) {
+		UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY);
+	} else {
+		UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY);
+	}
+#endif
+
+	UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_RST);
+
+	for (i = 0; i < UDAV_TX_TIMEOUT; i++) {
+		if (!(udav_csr_read1(sc, UDAV_NCR) & UDAV_NCR_RST))
+			break;
+		delay(10);	/* XXX */
+	}
+	delay(10000);		/* XXX */
+}
+
+#if defined(__NetBSD__) || defined(__OpenBSD__)
+int
+udav_activate(device_t self, enum devact act)
+{
+	struct udav_softc *sc = (struct udav_softc *)self;
+
+	DPRINTF(("%s: %s: enter, act=%d\n", device_get_nameunit(sc->sc_dev),
+		 __func__, act));
+	switch (act) {
+	case DVACT_ACTIVATE:
+		return (EOPNOTSUPP);
+		break;
+
+	case DVACT_DEACTIVATE:
+		if_deactivate(&sc->sc_ec.ec_if);
+		sc->sc_dying = 1;
+		break;
+	}
+	return (0);
+}
+#endif
+
+#define UDAV_BITS	6
+
+#define UDAV_CALCHASH(addr) \
+	(ether_crc32_le((addr), ETHER_ADDR_LEN) & ((1 << UDAV_BITS) - 1))
+
+static void
+udav_setmulti(struct udav_softc *sc)
+{
+	struct ifnet *ifp;
+#if defined(__NetBSD__)
+	struct ether_multi *enm;
+	struct ether_multistep step;
+#elif defined(__FreeBSD__)
+	struct ifmultiaddr *ifma;
+#endif
+	u_int8_t hashes[8];
+	int h = 0;
+
+	DPRINTF(("%s: %s: enter\n", device_get_nameunit(sc->sc_dev), __func__));
+
+	if (sc->sc_dying)
+		return;
+
+	ifp = GET_IFP(sc);
+
+	if (ifp->if_flags & IFF_PROMISC) {
+		UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_ALL|UDAV_RCR_PRMSC);
+		return;
+	} else if (ifp->if_flags & IFF_ALLMULTI) {
+#if defined(__NetBSD__)
+	allmulti:
+#endif
+		ifp->if_flags |= IFF_ALLMULTI;
+		UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_ALL);
+		UDAV_CLRBIT(sc, UDAV_RCR, UDAV_RCR_PRMSC);
+		return;
+	}
+
+	/* first, zot all the existing hash bits */
+	memset(hashes, 0x00, sizeof(hashes));
+	hashes[7] |= 0x80;	/* broadcast address */
+	udav_csr_write(sc, UDAV_MAR, hashes, sizeof(hashes));
+
+	/* now program new ones */
+#if defined(__NetBSD__)
+	ETHER_FIRST_MULTI(step, &sc->sc_ec, enm);
+	while (enm != NULL) {
+		if (memcmp(enm->enm_addrlo, enm->enm_addrhi,
+			   ETHER_ADDR_LEN) != 0)
+			goto allmulti;
+
+		h = UDAV_CALCHASH(enm->enm_addrlo);
+		hashes[h>>3] |= 1 << (h & 0x7);
+		ETHER_NEXT_MULTI(step, enm);
+	}
+#elif defined(__FreeBSD__)
+	IF_ADDR_LOCK(ifp);
+	TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
+	{
+		if (ifma->ifma_addr->sa_family != AF_LINK)
+			continue;
+		h = UDAV_CALCHASH(LLADDR((struct sockaddr_dl *)
+		    ifma->ifma_addr));
+		hashes[h>>3] |= 1 << (h & 0x7);
+	}
+	IF_ADDR_UNLOCK(ifp);
+#endif
+
+	/* disable all multicast */
+	ifp->if_flags &= ~IFF_ALLMULTI;
+	UDAV_CLRBIT(sc, UDAV_RCR, UDAV_RCR_ALL);
+
+	/* write hash value to the register */
+	udav_csr_write(sc, UDAV_MAR, hashes, sizeof(hashes));
+}
+
+static int
+udav_openpipes(struct udav_softc *sc)
+{
+	struct ue_chain *c;
+	usbd_status err;
+	int i;
+	int error = 0;
+
+	if (sc->sc_dying)
+		return (EIO);
+
+	sc->sc_refcnt++;
+
+	/* Open RX pipe */
+	err = usbd_open_pipe(sc->sc_ctl_iface, sc->sc_bulkin_no,
+			     USBD_EXCLUSIVE_USE, &sc->sc_pipe_rx);
+	if (err) {
+		printf("%s: open rx pipe failed: %s\n",
+		       device_get_nameunit(sc->sc_dev), usbd_errstr(err));
+		error = EIO;
+		goto done;
+	}
+
+	/* Open TX pipe */
+	err = usbd_open_pipe(sc->sc_ctl_iface, sc->sc_bulkout_no,
+			     USBD_EXCLUSIVE_USE, &sc->sc_pipe_tx);
+	if (err) {
+		printf("%s: open tx pipe failed: %s\n",
+		       device_get_nameunit(sc->sc_dev), usbd_errstr(err));
+		error = EIO;
+		goto done;
+	}
+
+#if 0
+	/* XXX: interrupt endpoint is not yet supported */
+	/* Open Interrupt pipe */
+	err = usbd_open_pipe_intr(sc->sc_ctl_iface, sc->sc_intrin_no,
+				  USBD_EXCLUSIVE_USE, &sc->sc_pipe_intr, sc,
+				  &sc->sc_cdata.ue_ibuf, UDAV_INTR_PKGLEN,
+				  udav_intr, UDAV_INTR_INTERVAL);
+	if (err) {
+		printf("%s: open intr pipe failed: %s\n",
+		       device_get_nameunit(sc->sc_dev), usbd_errstr(err));
+		error = EIO;
+		goto done;
+	}
+#endif
+
+
+	/* Start up the receive pipe. */
+	for (i = 0; i < UE_RX_LIST_CNT; i++) {
+		c = &sc->sc_cdata.ue_rx_chain[i];
+		usbd_setup_xfer(c->ue_xfer, sc->sc_pipe_rx,
+				c, c->ue_buf, UE_BUFSZ,
+				USBD_SHORT_XFER_OK | USBD_NO_COPY,
+				USBD_NO_TIMEOUT, udav_rxeof);
+		(void)usbd_transfer(c->ue_xfer);
+		DPRINTF(("%s: %s: start read\n", device_get_nameunit(sc->sc_dev),
+			 __func__));
+	}
+
+ done:
+	if (--sc->sc_refcnt < 0)
+		usb_detach_wakeup(sc->sc_dev);
+
+	return (error);
+}
+
+static void
+udav_start(struct ifnet *ifp)
+{
+	struct udav_softc *sc = ifp->if_softc;
+	struct mbuf *m_head = NULL;
+
+	DPRINTF(("%s: %s: enter, link=%d\n", device_get_nameunit(sc->sc_dev),
+		 __func__, sc->sc_link));
+
+	if (sc->sc_dying)
+		return;
+
+	if (!sc->sc_link)
+		return;
+
+#if defined(__FreeBSD__)
+	if (ifp->if_drv_flags & IFF_DRV_OACTIVE)
+#else
+	if (ifp->if_flags & IFF_OACTIVE)
+#endif
+		return;
+#if defined(__NetBSD__)
+	IFQ_POLL(&ifp->if_snd, m_head);
+#elif defined(__FreeBSD__)
+	IF_DEQUEUE(&ifp->if_snd, m_head);
+#endif
+	if (m_head == NULL)
+		return;
+
+	if (udav_send(sc, m_head, 0)) {
+#if defined(__FreeBSD__)
+		IF_PREPEND(&ifp->if_snd, m_head);
+		ifp->if_drv_flags |= IFF_DRV_OACTIVE;
+#else
+		ifp->if_flags |= IFF_OACTIVE;
+#endif
+		return;
+	}
+
+#if defined(__NetBSD__)
+	IFQ_DEQUEUE(&ifp->if_snd, m_head);
+#endif
+
+#if NBPFILTER > 0
+	BPF_MTAP(ifp, m_head);
+#endif
+
+#if defined(__FreeBSD__)
+	ifp->if_drv_flags |= IFF_DRV_OACTIVE;
+#else
+	ifp->if_flags |= IFF_OACTIVE;
+#endif
+
+	/* Set a timeout in case the chip goes out to lunch. */
+	ifp->if_timer = 5;
+}
+
+static int
+udav_send(struct udav_softc *sc, struct mbuf *m, int idx)
+{
+	int total_len;
+	struct ue_chain *c;
+	usbd_status err;
+
+	DPRINTF(("%s: %s: enter\n", device_get_nameunit(sc->sc_dev),__func__));
+
+	c = &sc->sc_cdata.ue_tx_chain[idx];
+
+	/* Copy the mbuf data into a contiguous buffer */
+	/*  first 2 bytes are packet length */
+	m_copydata(m, 0, m->m_pkthdr.len, c->ue_buf + 2);
+	c->ue_mbuf = m;
+	total_len = m->m_pkthdr.len;
+	if (total_len < UDAV_MIN_FRAME_LEN) {
+		memset(c->ue_buf + 2 + total_len, 0,
+		    UDAV_MIN_FRAME_LEN - total_len);
+		total_len = UDAV_MIN_FRAME_LEN;
+	}
+
+	/* Frame length is specified in the first 2bytes of the buffer */
+	c->ue_buf[0] = (u_int8_t)total_len;
+	c->ue_buf[1] = (u_int8_t)(total_len >> 8);
+	total_len += 2;
+
+	usbd_setup_xfer(c->ue_xfer, sc->sc_pipe_tx, c, c->ue_buf, total_len,
+			USBD_FORCE_SHORT_XFER | USBD_NO_COPY,
+			UDAV_TX_TIMEOUT, udav_txeof);
+
+	/* Transmit */
+	sc->sc_refcnt++;
+	err = usbd_transfer(c->ue_xfer);
+	if (--sc->sc_refcnt < 0)
+		usb_detach_wakeup(sc->sc_dev);
+	if (err != USBD_IN_PROGRESS) {
+		printf("%s: udav_send error=%s\n", device_get_nameunit(sc->sc_dev),
+		       usbd_errstr(err));
+		/* Stop the interface */
+		usb_add_task(sc->sc_udev, &sc->sc_stop_task, USB_TASKQ_DRIVER);
+		return (EIO);
+	}
+
+	DPRINTF(("%s: %s: send %d bytes\n", device_get_nameunit(sc->sc_dev),
+		 __func__, total_len));
+
+	sc->sc_cdata.ue_tx_cnt++;
+
+	return (0);
+}
+
+static void
+udav_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
+{
+	struct ue_chain *c = priv;
+	struct udav_softc *sc = c->ue_sc;
+	struct ifnet *ifp = GET_IFP(sc);
+#if defined(__NetBSD__)
+	int s;
+#endif
+
+	if (sc->sc_dying)
+		return;
+
+#if defined(__NetBSD__)
+	s = splnet();
+#elif defined(__FreeBSD__)
+        UDAV_LOCK(sc);
+#endif
+
+	DPRINTF(("%s: %s: enter\n", device_get_nameunit(sc->sc_dev), __func__));
+
+	ifp->if_timer = 0;
+#if defined(__FreeBSD__)
+	ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
+#else
+	ifp->if_flags &= ~IFF_OACTIVE;
+#endif
+
+	if (status != USBD_NORMAL_COMPLETION) {
+		if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
+#if defined(__NetBSD__)
+			splx(s);
+#elif defined(__FreeBSD__)
+                        UDAV_UNLOCK(sc);
+#endif
+			return;
+		}
+		ifp->if_oerrors++;
+		printf("%s: usb error on tx: %s\n", device_get_nameunit(sc->sc_dev),
+		       usbd_errstr(status));
+		if (status == USBD_STALLED) {
+			sc->sc_refcnt++;
+			usbd_clear_endpoint_stall(sc->sc_pipe_tx);
+			if (--sc->sc_refcnt < 0)
+				usb_detach_wakeup(sc->sc_dev);
+		}
+#if defined(__NetBSD__)
+		splx(s);
+#elif defined(__FreeBSD__)
+                UDAV_UNLOCK(sc);
+#endif
+		return;
+	}
+
+	ifp->if_opackets++;
+
+	m_freem(c->ue_mbuf);
+	c->ue_mbuf = NULL;
+
+#if defined(__NetBSD__)
+	if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
+#elif defined(__FreeBSD__)
+	if ( ifp->if_snd.ifq_head != NULL )
+#endif
+		udav_start(ifp);
+
+#if defined(__NetBSD__)
+	splx(s);
+#elif defined(__FreeBSD__)
+        UDAV_UNLOCK(sc);
+#endif
+}
+
+static void
+udav_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
+{
+	struct ue_chain *c = priv;
+	struct udav_softc *sc = c->ue_sc;
+	struct ifnet *ifp = GET_IFP(sc);
+	struct mbuf *m;
+	u_int32_t total_len;
+	u_int8_t *pktstat;
+#if defined(__NetBSD__)
+	int s;
+#endif
+
+	DPRINTF(("%s: %s: enter\n", device_get_nameunit(sc->sc_dev),__func__));
+
+	if (sc->sc_dying)
+		return;
+
+	if (status != USBD_NORMAL_COMPLETION) {
+		if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
+			return;
+		sc->sc_rx_errs++;
+		if (usbd_ratecheck(&sc->sc_rx_notice)) {
+			printf("%s: %u usb errors on rx: %s\n",
+			       device_get_nameunit(sc->sc_dev), sc->sc_rx_errs,
+			       usbd_errstr(status));
+			sc->sc_rx_errs = 0;
+		}
+		if (status == USBD_STALLED) {
+			sc->sc_refcnt++;
+			usbd_clear_endpoint_stall(sc->sc_pipe_rx);
+			if (--sc->sc_refcnt < 0)
+				usb_detach_wakeup(sc->sc_dev);
+		}
+		goto done;
+	}
+
+	usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
+
+	/* copy data to mbuf */
+	m = c->ue_mbuf;
+	memcpy(mtod(m, char *), c->ue_buf, total_len);
+
+	/* first byte in received data */
+	pktstat = mtod(m, u_int8_t *);
+	m_adj(m, sizeof(u_int8_t));
+	DPRINTF(("%s: RX Status: 0x%02x\n", device_get_nameunit(sc->sc_dev), *pktstat));
+
+	total_len = UGETW(mtod(m, u_int8_t *));
+	m_adj(m, sizeof(u_int16_t));
+
+	if (*pktstat & UDAV_RSR_LCS) {
+		ifp->if_collisions++;
+		goto done;
+	}
+
+	if (total_len < sizeof(struct ether_header) ||
+	    *pktstat & UDAV_RSR_ERR) {
+		ifp->if_ierrors++;
+		goto done;
+	}
+
+	ifp->if_ipackets++;
+	total_len -= ETHER_CRC_LEN;
+
+	m->m_pkthdr.len = m->m_len = total_len;
+#if defined(__NetBSD__)
+	m->m_pkthdr.rcvif = ifp;
+#elif defined(__FreeBSD__)
+	m->m_pkthdr.rcvif = (struct ifnet *)&sc->sc_qdat;
+#endif
+
+#if defined(__NetBSD__)
+	s = splnet();
+#elif defined(__FreeBSD__)
+        UDAV_LOCK(sc);
+#endif
+
+#if defined(__NetBSD__)
+	c->ue_mbuf = usb_ether_newbuf();
+	if (c->ue_mbuf == NULL) {
+		printf("%s: no memory for rx list "
+		    "-- packet dropped!\n", device_get_nameunit(sc->sc_dev));
+		ifp->if_ierrors++;
+		goto done1;
+	}
+#endif
+
+#if NBPFILTER > 0
+	BPF_MTAP(ifp, m);
+#endif
+
+	DPRINTF(("%s: %s: deliver %d\n", device_get_nameunit(sc->sc_dev),
+		 __func__, m->m_len));
+#if defined(__NetBSD__)
+	IF_INPUT(ifp, m);
+#endif
+#if defined(__FreeBSD__)
+	usb_ether_input(m);
+        UDAV_UNLOCK(sc);
+        return ;
+#endif
+
+#if defined(__NetBSD__)
+ done1:
+	splx(s);
+#elif defined(__FreeBSD__)
+        UDAV_UNLOCK(sc);
+#endif
+ done:
+	/* Setup new transfer */
+	usbd_setup_xfer(xfer, sc->sc_pipe_rx, c, c->ue_buf, UE_BUFSZ,
+			USBD_SHORT_XFER_OK | USBD_NO_COPY,
+			USBD_NO_TIMEOUT, udav_rxeof);
+	sc->sc_refcnt++;
+	usbd_transfer(xfer);
+	if (--sc->sc_refcnt < 0)
+		usb_detach_wakeup(sc->sc_dev);
+
+	DPRINTF(("%s: %s: start rx\n", device_get_nameunit(sc->sc_dev), __func__));
+}
+
+#if 0
+static void udav_intr()
+{
+}
+#endif
+
+static int
+udav_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
+{
+	struct udav_softc *sc = ifp->if_softc;
+	struct ifreq *ifr = (struct ifreq *)data;
+	struct mii_data *mii;
+#if defined(__NetBSD__)
+	int s;
+#endif
+	int error = 0;
+
+	DPRINTF(("%s: %s: enter\n", device_get_nameunit(sc->sc_dev), __func__));
+
+	if (sc->sc_dying)
+		return (EIO);
+
+#if defined(__NetBSD__)
+	s = splnet();
+#elif defined(__FreeBSD__)
+        UDAV_LOCK(sc);
+#endif
+
+	switch (cmd) {
+#if defined(__FreeBSD__)
+	case SIOCSIFFLAGS:
+		if (ifp->if_flags & IFF_UP) {
+			if (ifp->if_drv_flags & IFF_DRV_RUNNING &&
+			    ifp->if_flags & IFF_PROMISC) {
+				UDAV_SETBIT(sc, UDAV_RCR,
+					    UDAV_RCR_ALL|UDAV_RCR_PRMSC);
+			} else if (ifp->if_drv_flags & IFF_DRV_RUNNING &&
+				   !(ifp->if_flags & IFF_PROMISC)) {
+				if (ifp->if_flags & IFF_ALLMULTI)
+					UDAV_CLRBIT(sc, UDAV_RCR,
+ 						    UDAV_RCR_PRMSC);
+ 				else
+ 					UDAV_CLRBIT(sc, UDAV_RCR,
+ 						    UDAV_RCR_ALL|UDAV_RCR_PRMSC);
+ 			} else if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
+ 				udav_init(sc);
+ 		} else {
+ 			if (ifp->if_drv_flags & IFF_DRV_RUNNING)
+ 				udav_stop(ifp, 1);
+ 		}
+ 		error = 0;
+ 		break;
+	case SIOCADDMULTI:
+	case SIOCDELMULTI:
+		udav_setmulti(sc);
+		error = 0;
+		break;
+#endif
+	case SIOCGIFMEDIA:
+	case SIOCSIFMEDIA:
+		mii = GET_MII(sc);
+		error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, cmd);
+		break;
+
+	default:
+		error = ether_ioctl(ifp, cmd, data);
+#if defined(__NetBSD__)
+		if (error == ENETRESET) {
+			udav_setmulti(sc);
+			error = 0;
+		}
+#endif
+		break;
+	}
+
+#if defined(__NetBSD__)
+	splx(s);
+#elif defined(__FreeBSD__)
+        UDAV_UNLOCK(sc);
+#endif
+
+	return (error);
+}
+
+static void
+udav_watchdog(struct ifnet *ifp)
+{
+	struct udav_softc *sc = ifp->if_softc;
+	struct ue_chain *c;
+	usbd_status stat;
+#if defined(__NetBSD__)
+	int s;
+#endif
+
+	DPRINTF(("%s: %s: enter\n", device_get_nameunit(sc->sc_dev), __func__));
+
+	ifp->if_oerrors++;
+	printf("%s: watchdog timeout\n", device_get_nameunit(sc->sc_dev));
+
+#if defined(__NetBSD__)
+	s = splusb();
+#elif defined(__FreeBSD__)
+        UDAV_LOCK(sc)
+#endif
+	c = &sc->sc_cdata.ue_tx_chain[0];
+	usbd_get_xfer_status(c->ue_xfer, NULL, NULL, NULL, &stat);
+	udav_txeof(c->ue_xfer, c, stat);
+
+#if defined(__NetBSD__)
+	if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
+#elif defined(__FreeBSD__)
+	if ( ifp->if_snd.ifq_head != NULL )
+#endif
+		udav_start(ifp);
+#if defined(__NetBSD__)
+	splx(s);
+#elif defined(__FreeBSD__)
+        UDAV_UNLOCK(sc);
+#endif
+}
+
+static void
+udav_stop_task(struct udav_softc *sc)
+{
+	udav_stop(GET_IFP(sc), 1);
+}
+
+/* Stop the adapter and free any mbufs allocated to the RX and TX lists. */
+static void
+udav_stop(struct ifnet *ifp, int disable)
+{
+	struct udav_softc *sc = ifp->if_softc;
+	usbd_status err;
+
+	DPRINTF(("%s: %s: enter\n", device_get_nameunit(sc->sc_dev), __func__));
+
+	ifp->if_timer = 0;
+
+	udav_reset(sc);
+
+	usb_uncallout(sc->sc_stat_ch, udav_tick, sc);
+
+	/* Stop transfers */
+	/* RX endpoint */
+	if (sc->sc_pipe_rx != NULL) {
+		err = usbd_abort_pipe(sc->sc_pipe_rx);
+		if (err)
+			printf("%s: abort rx pipe failed: %s\n",
+			       device_get_nameunit(sc->sc_dev), usbd_errstr(err));
+		err = usbd_close_pipe(sc->sc_pipe_rx);
+		if (err)
+			printf("%s: close rx pipe failed: %s\n",
+			       device_get_nameunit(sc->sc_dev), usbd_errstr(err));
+		sc->sc_pipe_rx = NULL;
+	}
+
+	/* TX endpoint */
+	if (sc->sc_pipe_tx != NULL) {
+		err = usbd_abort_pipe(sc->sc_pipe_tx);
+		if (err)
+			printf("%s: abort tx pipe failed: %s\n",
+			       device_get_nameunit(sc->sc_dev), usbd_errstr(err));
+		err = usbd_close_pipe(sc->sc_pipe_tx);
+		if (err)
+			printf("%s: close tx pipe failed: %s\n",
+			       device_get_nameunit(sc->sc_dev), usbd_errstr(err));
+		sc->sc_pipe_tx = NULL;
+	}
+
+#if 0
+	/* XXX: Interrupt endpoint is not yet supported!! */
+	/* Interrupt endpoint */
+	if (sc->sc_pipe_intr != NULL) {
+		err = usbd_abort_pipe(sc->sc_pipe_intr);
+		if (err)
+			printf("%s: abort intr pipe failed: %s\n",
+			       device_get_nameunit(sc->sc_dev), usbd_errstr(err));
+		err = usbd_close_pipe(sc->sc_pipe_intr);
+		if (err)
+			printf("%s: close intr pipe failed: %s\n",
+			       device_get_nameunit(sc->sc_dev), usbd_errstr(err));
+		sc->sc_pipe_intr = NULL;
+	}
+#endif
+
+	/* Free RX resources. */
+	usb_ether_rx_list_free(&sc->sc_cdata);
+	/* Free TX resources. */
+	usb_ether_tx_list_free(&sc->sc_cdata);
+
+	sc->sc_link = 0;
+#if defined(__FreeBSD__)
+	ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
+#else
+	ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
+#endif
+}
+
+/* Set media options */
+static int
+udav_ifmedia_change(struct ifnet *ifp)
+{
+	struct udav_softc *sc = ifp->if_softc;
+	struct mii_data *mii = GET_MII(sc);
+
+	DPRINTF(("%s: %s: enter\n", device_get_nameunit(sc->sc_dev), __func__));
+
+	if (sc->sc_dying)
+		return (0);
+
+	sc->sc_link = 0;
+	if (mii->mii_instance) {
+		struct mii_softc *miisc;
+		for (miisc = LIST_FIRST(&mii->mii_phys); miisc != NULL;
+		     miisc = LIST_NEXT(miisc, mii_list))
+			mii_phy_reset(miisc);
+	}
+
+	return (mii_mediachg(mii));
+}
+
+/* Report current media status. */
+static void
+udav_ifmedia_status(struct ifnet *ifp, struct ifmediareq *ifmr)
+{
+	struct udav_softc *sc = ifp->if_softc;
+	struct mii_data *mii = GET_MII(sc);
+
+	DPRINTF(("%s: %s: enter\n", device_get_nameunit(sc->sc_dev), __func__));
+
+	if (sc->sc_dying)
+		return;
+
+#if defined(__FreeBSD__)
+	if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
+#else
+	if ((ifp->if_flags & IFF_RUNNING) == 0) {
+#endif
+		ifmr->ifm_active = IFM_ETHER | IFM_NONE;
+		ifmr->ifm_status = 0;
+		return;
+	}
+
+	mii_pollstat(mii);
+	ifmr->ifm_active = mii->mii_media_active;
+	ifmr->ifm_status = mii->mii_media_status;
+}
+
+static void
+udav_tick(void *xsc)
+{
+	struct udav_softc *sc = xsc;
+
+	if (sc == NULL)
+		return;
+
+	DPRINTFN(0xff, ("%s: %s: enter\n", device_get_nameunit(sc->sc_dev),
+			__func__));
+
+	if (sc->sc_dying)
+		return;
+
+	/* Perform periodic stuff in process context */
+	usb_add_task(sc->sc_udev, &sc->sc_tick_task, USB_TASKQ_DRIVER);
+}
+
+static void
+udav_tick_task(void *xsc)
+{
+	struct udav_softc *sc = xsc;
+	struct ifnet *ifp;
+	struct mii_data *mii;
+#if defined(__NetBSD__)
+	int s;
+#endif
+
+	if (sc == NULL)
+		return;
+
+	DPRINTFN(0xff, ("%s: %s: enter\n", device_get_nameunit(sc->sc_dev),
+			__func__));
+
+	if (sc->sc_dying)
+		return;
+
+	ifp = GET_IFP(sc);
+	mii = GET_MII(sc);
+
+	if (mii == NULL)
+		return;
+
+#if defined(__NetBSD__)
+	s = splnet();
+#elif defined(__FreeBSD__)
+        UDAV_LOCK(sc);
+#endif
+
+	mii_tick(mii);
+	if (!sc->sc_link) {
+		mii_pollstat(mii);
+		if (mii->mii_media_status & IFM_ACTIVE &&
+		    IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
+			DPRINTF(("%s: %s: got link\n",
+				 device_get_nameunit(sc->sc_dev), __func__));
+			sc->sc_link++;
+#if defined(__NetBSD__)
+			if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
+#elif defined(__FreeBSD__)
+			if ( ifp->if_snd.ifq_head != NULL )
+#endif
+				   udav_start(ifp);
+		}
+	}
+
+	usb_callout(sc->sc_stat_ch, hz, udav_tick, sc);
+
+#if defined(__NetBSD__)
+	splx(s);
+#elif defined(__FreeBSD__)
+        UDAV_UNLOCK(sc);
+#endif
+}
+
+/* Get exclusive access to the MII registers */
+static void
+udav_lock_mii(struct udav_softc *sc)
+{
+	DPRINTFN(0xff, ("%s: %s: enter\n", device_get_nameunit(sc->sc_dev),
+			__func__));
+
+	sc->sc_refcnt++;
+	lockmgr(&sc->sc_mii_lock, LK_EXCLUSIVE, NULL);
+}
+
+static void
+udav_unlock_mii(struct udav_softc *sc)
+{
+	DPRINTFN(0xff, ("%s: %s: enter\n", device_get_nameunit(sc->sc_dev),
+		       __func__));
+
+	lockmgr(&sc->sc_mii_lock, LK_RELEASE, NULL);
+	if (--sc->sc_refcnt < 0)
+		usb_detach_wakeup(sc->sc_dev);
+}
+
+static int
+udav_miibus_readreg(device_t dev, int phy, int reg)
+{
+	struct udav_softc *sc;
+	u_int8_t val[2];
+	u_int16_t data16;
+
+	if (dev == NULL)
+		return (0);
+
+	sc = USBGETSOFTC(dev);
+
+	DPRINTFN(0xff, ("%s: %s: enter, phy=%d reg=0x%04x\n",
+		 device_get_nameunit(sc->sc_dev), __func__, phy, reg));
+
+	if (sc->sc_dying) {
+#ifdef DIAGNOSTIC
+		printf("%s: %s: dying\n", device_get_nameunit(sc->sc_dev),
+		       __func__);
+#endif
+		return (0);
+	}
+
+	/* XXX: one PHY only for the internal PHY */
+	if (phy != 0) {
+		DPRINTFN(0xff, ("%s: %s: phy=%d is not supported\n",
+			 device_get_nameunit(sc->sc_dev), __func__, phy));
+		return (0);
+	}
+
+	udav_lock_mii(sc);
+
+	/* select internal PHY and set PHY register address */
+	udav_csr_write1(sc, UDAV_EPAR,
+			UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK));
+
+	/* select PHY operation and start read command */
+	udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRR);
+
+	/* XXX: should be wait? */
+
+	/* end read command */
+	UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRR);
+
+	/* retrieve the result from data registers */
+	udav_csr_read(sc, UDAV_EPDRL, val, 2);
+
+	udav_unlock_mii(sc);
+
+	data16 = val[0] | (val[1] << 8);
+
+	DPRINTFN(0xff, ("%s: %s: phy=%d reg=0x%04x => 0x%04x\n",
+		 device_get_nameunit(sc->sc_dev), __func__, phy, reg, data16));
+
+	return (data16);
+}
+
+static int
+udav_miibus_writereg(device_t dev, int phy, int reg, int data)
+{
+	struct udav_softc *sc;
+	u_int8_t val[2];
+
+	if (dev == NULL)
+		return (0);	/* XXX real error? */
+
+	sc = USBGETSOFTC(dev);
+
+	DPRINTFN(0xff, ("%s: %s: enter, phy=%d reg=0x%04x data=0x%04x\n",
+		 device_get_nameunit(sc->sc_dev), __func__, phy, reg, data));
+
+	if (sc->sc_dying) {
+#ifdef DIAGNOSTIC
+		printf("%s: %s: dying\n", device_get_nameunit(sc->sc_dev),
+		       __func__);
+#endif
+		return (0);	/* XXX real error? */
+	}
+
+	/* XXX: one PHY only for the internal PHY */
+	if (phy != 0) {
+		DPRINTFN(0xff, ("%s: %s: phy=%d is not supported\n",
+			 device_get_nameunit(sc->sc_dev), __func__, phy));
+		return (0);	/* XXX real error? */
+	}
+
+	udav_lock_mii(sc);
+
+	/* select internal PHY and set PHY register address */
+	udav_csr_write1(sc, UDAV_EPAR,
+			UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK));
+
+	/* put the value to the data registers */
+	val[0] = data & 0xff;
+	val[1] = (data >> 8) & 0xff;
+	udav_csr_write(sc, UDAV_EPDRL, val, 2);
+
+	/* select PHY operation and start write command */
+	udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRW);
+
+	/* XXX: should be wait? */
+
+	/* end write command */
+	UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRW);
+
+	udav_unlock_mii(sc);
+
+	return (0);
+}
+
+static void
+udav_miibus_statchg(device_t dev)
+{
+#ifdef UDAV_DEBUG
+	struct udav_softc *sc;
+
+	if (dev == NULL)
+		return;
+
+	sc = USBGETSOFTC(dev);
+	DPRINTF(("%s: %s: enter\n", device_get_nameunit(sc->sc_dev), __func__));
+#endif
+	/* Nothing to do */
+}
+
+#if defined(__FreeBSD__)
+/*
+ * Stop all chip I/O so that the kernel's probe routines don't
+ * get confused by errant DMAs when rebooting.
+ */
+static int
+udav_shutdown(device_t dev)
+{
+	struct udav_softc	*sc;
+
+	sc = device_get_softc(dev);
+
+	udav_stop_task(sc);
+
+	return (0);
+}
+
+static void
+udav_rxstart(struct ifnet *ifp)
+{
+	struct udav_softc	*sc;
+	struct ue_chain	*c;
+
+	sc = ifp->if_softc;
+	UDAV_LOCK(sc);
+	c = &sc->sc_cdata.ue_rx_chain[sc->sc_cdata.ue_rx_prod];
+
+	c->ue_mbuf = usb_ether_newbuf();
+	if (c->ue_mbuf == NULL) {
+		printf("%s: no memory for rx list "
+		    "-- packet dropped!\n", device_get_nameunit(sc->sc_dev));
+		ifp->if_ierrors++;
+		UDAV_UNLOCK(sc);
+		return;
+	}
+
+	/* Setup new transfer. */
+        usbd_setup_xfer(c->ue_xfer, sc->sc_pipe_rx,
+                        c, c->ue_buf, UE_BUFSZ,
+                        USBD_SHORT_XFER_OK | USBD_NO_COPY,
+                        USBD_NO_TIMEOUT, udav_rxeof);
+	usbd_transfer(c->ue_xfer);
+
+	UDAV_UNLOCK(sc);
+	return;
+}
+#endif