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, 1074 insertions, 0 deletions

diff --git a/sys/legacy/dev/usb/if_cue.c b/sys/legacy/dev/usb/if_cue.c
new file mode 100644
index 0000000..cd3a543
--- /dev/null
+++ b/sys/legacy/dev/usb/if_cue.c
@@ -0,0 +1,1074 @@
+/*-
+ * Copyright (c) 1997, 1998, 1999, 2000
+ *	Bill Paul <wpaul@ee.columbia.edu>.  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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Bill Paul.
+ * 4. 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 Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/*
+ * CATC USB-EL1210A USB to ethernet driver. Used in the CATC Netmate
+ * adapters and others.
+ *
+ * Written by Bill Paul <wpaul@ee.columbia.edu>
+ * Electrical Engineering Department
+ * Columbia University, New York City
+ */
+
+/*
+ * The CATC USB-EL1210A provides USB ethernet support at 10Mbps. The
+ * RX filter uses a 512-bit multicast hash table, single perfect entry
+ * for the station address, and promiscuous mode. Unlike the ADMtek
+ * and KLSI chips, the CATC ASIC supports read and write combining
+ * mode where multiple packets can be transfered using a single bulk
+ * transaction, which helps performance a great deal.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/sockio.h>
+#include <sys/mbuf.h>
+#include <sys/malloc.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/socket.h>
+
+#include <net/if.h>
+#include <net/if_arp.h>
+#include <net/ethernet.h>
+#include <net/if_dl.h>
+#include <net/if_types.h>
+
+#include <net/bpf.h>
+
+#include <sys/bus.h>
+#include <machine/bus.h>
+
+#include <dev/usb/usb.h>
+#include <dev/usb/usbdi.h>
+#include <dev/usb/usbdi_util.h>
+#include <dev/usb/usbdivar.h>
+#include "usbdevs.h"
+#include <dev/usb/usb_ethersubr.h>
+
+#include <dev/usb/if_cuereg.h>
+
+/*
+ * Various supported device vendors/products.
+ */
+static struct cue_type cue_devs[] = {
+	{ USB_VENDOR_CATC, USB_PRODUCT_CATC_NETMATE },
+	{ USB_VENDOR_CATC, USB_PRODUCT_CATC_NETMATE2 },
+	{ USB_VENDOR_SMARTBRIDGES, USB_PRODUCT_SMARTBRIDGES_SMARTLINK },
+        /* Belkin F5U111 adapter covered by NETMATE entry */
+	{ 0, 0 }
+};
+
+static device_probe_t cue_match;
+static device_attach_t cue_attach;
+static device_detach_t cue_detach;
+static device_shutdown_t cue_shutdown;
+
+static int cue_encap(struct cue_softc *, struct mbuf *, int);
+static void cue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
+static void cue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
+static void cue_tick(void *);
+static void cue_rxstart(struct ifnet *);
+static void cue_start(struct ifnet *);
+static int cue_ioctl(struct ifnet *, u_long, caddr_t);
+static void cue_init(void *);
+static void cue_stop(struct cue_softc *);
+static void cue_watchdog(struct ifnet *);
+
+static void cue_setmulti(struct cue_softc *);
+static uint32_t cue_mchash(const uint8_t *);
+static void cue_reset(struct cue_softc *);
+
+static int cue_csr_read_1(struct cue_softc *, int);
+static int cue_csr_write_1(struct cue_softc *, int, int);
+static int cue_csr_read_2(struct cue_softc *, int);
+#ifdef notdef
+static int cue_csr_write_2(struct cue_softc *, int, int);
+#endif
+static int cue_mem(struct cue_softc *, int, int, void *, int);
+static int cue_getmac(struct cue_softc *, void *);
+
+static device_method_t cue_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_probe,		cue_match),
+	DEVMETHOD(device_attach,	cue_attach),
+	DEVMETHOD(device_detach,	cue_detach),
+	DEVMETHOD(device_shutdown,	cue_shutdown),
+
+	{ 0, 0 }
+};
+
+static driver_t cue_driver = {
+	"cue",
+	cue_methods,
+	sizeof(struct cue_softc)
+};
+
+static devclass_t cue_devclass;
+
+DRIVER_MODULE(cue, uhub, cue_driver, cue_devclass, usbd_driver_load, 0);
+MODULE_DEPEND(cue, usb, 1, 1, 1);
+MODULE_DEPEND(cue, ether, 1, 1, 1);
+
+#define CUE_SETBIT(sc, reg, x)				\
+	cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) | (x))
+
+#define CUE_CLRBIT(sc, reg, x)				\
+	cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) & ~(x))
+
+static int
+cue_csr_read_1(struct cue_softc *sc, int reg)
+{
+	usb_device_request_t	req;
+	usbd_status		err;
+	u_int8_t		val = 0;
+
+	if (sc->cue_dying)
+		return(0);
+
+	CUE_LOCK(sc);
+
+	req.bmRequestType = UT_READ_VENDOR_DEVICE;
+	req.bRequest = CUE_CMD_READREG;
+	USETW(req.wValue, 0);
+	USETW(req.wIndex, reg);
+	USETW(req.wLength, 1);
+
+	err = usbd_do_request(sc->cue_udev, &req, &val);
+
+	CUE_UNLOCK(sc);
+
+	if (err)
+		return(0);
+
+	return(val);
+}
+
+static int
+cue_csr_read_2(struct cue_softc *sc, int reg)
+{
+	usb_device_request_t	req;
+	usbd_status		err;
+	u_int16_t		val = 0;
+
+	if (sc->cue_dying)
+		return(0);
+
+	CUE_LOCK(sc);
+
+	req.bmRequestType = UT_READ_VENDOR_DEVICE;
+	req.bRequest = CUE_CMD_READREG;
+	USETW(req.wValue, 0);
+	USETW(req.wIndex, reg);
+	USETW(req.wLength, 2);
+
+	err = usbd_do_request(sc->cue_udev, &req, &val);
+
+	CUE_UNLOCK(sc);
+
+	if (err)
+		return(0);
+
+	return(val);
+}
+
+static int
+cue_csr_write_1(struct cue_softc *sc, int reg, int val)
+{
+	usb_device_request_t	req;
+	usbd_status		err;
+
+	if (sc->cue_dying)
+		return(0);
+
+	CUE_LOCK(sc);
+
+	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
+	req.bRequest = CUE_CMD_WRITEREG;
+	USETW(req.wValue, val);
+	USETW(req.wIndex, reg);
+	USETW(req.wLength, 0);
+
+	err = usbd_do_request(sc->cue_udev, &req, NULL);
+
+	CUE_UNLOCK(sc);
+
+	if (err)
+		return(-1);
+
+	return(0);
+}
+
+#ifdef notdef
+static int
+cue_csr_write_2(struct cue_softc *sc, int reg, int val)
+{
+	usb_device_request_t	req;
+	usbd_status		err;
+
+	if (sc->cue_dying)
+		return(0);
+
+	CUE_LOCK(sc);
+
+	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
+	req.bRequest = CUE_CMD_WRITEREG;
+	USETW(req.wValue, val);
+	USETW(req.wIndex, reg);
+	USETW(req.wLength, 0);
+
+	err = usbd_do_request(sc->cue_udev, &req, NULL);
+
+	CUE_UNLOCK(sc);
+
+	if (err)
+		return(-1);
+
+	return(0);
+}
+#endif
+
+static int
+cue_mem(struct cue_softc *sc, int cmd, int addr, void *buf, int len)
+{
+	usb_device_request_t	req;
+	usbd_status		err;
+
+	if (sc->cue_dying)
+		return(0);
+
+	CUE_LOCK(sc);
+
+	if (cmd == CUE_CMD_READSRAM)
+		req.bmRequestType = UT_READ_VENDOR_DEVICE;
+	else
+		req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
+	req.bRequest = cmd;
+	USETW(req.wValue, 0);
+	USETW(req.wIndex, addr);
+	USETW(req.wLength, len);
+
+	err = usbd_do_request(sc->cue_udev, &req, buf);
+
+	CUE_UNLOCK(sc);
+
+	if (err)
+		return(-1);
+
+	return(0);
+}
+
+static int
+cue_getmac(struct cue_softc *sc, void *buf)
+{
+	usb_device_request_t	req;
+	usbd_status		err;
+
+	if (sc->cue_dying)
+		return(0);
+
+	CUE_LOCK(sc);
+
+	req.bmRequestType = UT_READ_VENDOR_DEVICE;
+	req.bRequest = CUE_CMD_GET_MACADDR;
+	USETW(req.wValue, 0);
+	USETW(req.wIndex, 0);
+	USETW(req.wLength, ETHER_ADDR_LEN);
+
+	err = usbd_do_request(sc->cue_udev, &req, buf);
+
+	CUE_UNLOCK(sc);
+
+	if (err) {
+		device_printf(sc->cue_dev, "read MAC address failed\n");
+		return(-1);
+	}
+
+	return(0);
+}
+
+#define CUE_BITS	9
+
+static uint32_t
+cue_mchash(const uint8_t *addr)
+{
+	uint32_t crc;
+
+	/* Compute CRC for the address value. */
+	crc = ether_crc32_le(addr, ETHER_ADDR_LEN);
+
+	return (crc & ((1 << CUE_BITS) - 1));
+}
+
+static void
+cue_setmulti(struct cue_softc *sc)
+{
+	struct ifnet		*ifp;
+	struct ifmultiaddr	*ifma;
+	u_int32_t		h = 0, i;
+
+	ifp = sc->cue_ifp;
+
+	if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
+		for (i = 0; i < CUE_MCAST_TABLE_LEN; i++)
+			sc->cue_mctab[i] = 0xFF;
+		cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR,
+		    &sc->cue_mctab, CUE_MCAST_TABLE_LEN);
+		return;
+	}
+
+	/* first, zot all the existing hash bits */
+	for (i = 0; i < CUE_MCAST_TABLE_LEN; i++)
+		sc->cue_mctab[i] = 0;
+
+	/* now program new ones */
+	IF_ADDR_LOCK(ifp);
+	TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
+	{
+		if (ifma->ifma_addr->sa_family != AF_LINK)
+			continue;
+		h = cue_mchash(LLADDR((struct sockaddr_dl *)ifma->ifma_addr));
+		sc->cue_mctab[h >> 3] |= 1 << (h & 0x7);
+	}
+	IF_ADDR_UNLOCK(ifp);
+
+	/*
+	 * Also include the broadcast address in the filter
+	 * so we can receive broadcast frames.
+ 	 */
+	if (ifp->if_flags & IFF_BROADCAST) {
+		h = cue_mchash(ifp->if_broadcastaddr);
+		sc->cue_mctab[h >> 3] |= 1 << (h & 0x7);
+	}
+
+	cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR,
+	    &sc->cue_mctab, CUE_MCAST_TABLE_LEN);
+
+	return;
+}
+
+static void
+cue_reset(struct cue_softc *sc)
+{
+	usb_device_request_t	req;
+	usbd_status		err;
+
+	if (sc->cue_dying)
+		return;
+
+	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
+	req.bRequest = CUE_CMD_RESET;
+	USETW(req.wValue, 0);
+	USETW(req.wIndex, 0);
+	USETW(req.wLength, 0);
+	err = usbd_do_request(sc->cue_udev, &req, NULL);
+	if (err)
+		device_printf(sc->cue_dev, "reset failed\n");
+
+	/* Wait a little while for the chip to get its brains in order. */
+	DELAY(1000);
+        return;
+}
+
+/*
+ * Probe for a Pegasus chip.
+ */
+static int
+cue_match(device_t self)
+{
+	struct usb_attach_arg *uaa = device_get_ivars(self);
+	struct cue_type			*t;
+
+	if (!uaa->iface)
+		return(UMATCH_NONE);
+
+	t = cue_devs;
+	while(t->cue_vid) {
+		if (uaa->vendor == t->cue_vid &&
+		    uaa->product == t->cue_did) {
+			return(UMATCH_VENDOR_PRODUCT);
+		}
+		t++;
+	}
+
+	return(UMATCH_NONE);
+}
+
+/*
+ * Attach the interface. Allocate softc structures, do ifmedia
+ * setup and ethernet/BPF attach.
+ */
+static int
+cue_attach(device_t self)
+{
+	struct cue_softc *sc = device_get_softc(self);
+	struct usb_attach_arg *uaa = device_get_ivars(self);
+	u_char			eaddr[ETHER_ADDR_LEN];
+	struct ifnet		*ifp;
+	usb_interface_descriptor_t	*id;
+	usb_endpoint_descriptor_t	*ed;
+	int			i;
+
+	sc->cue_dev = self;
+	sc->cue_iface = uaa->iface;
+	sc->cue_udev = uaa->device;
+
+	if (usbd_set_config_no(sc->cue_udev, CUE_CONFIG_NO, 0)) {
+		device_printf(sc->cue_dev, "getting interface handle failed\n");
+		return ENXIO;
+	}
+
+	id = usbd_get_interface_descriptor(uaa->iface);
+
+	/* Find endpoints. */
+	for (i = 0; i < id->bNumEndpoints; i++) {
+		ed = usbd_interface2endpoint_descriptor(uaa->iface, i);
+		if (!ed) {
+			device_printf(sc->cue_dev, "couldn't get ep %d\n", i);
+			return ENXIO;
+		}
+		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
+		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
+			sc->cue_ed[CUE_ENDPT_RX] = ed->bEndpointAddress;
+		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
+			   UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
+			sc->cue_ed[CUE_ENDPT_TX] = ed->bEndpointAddress;
+		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
+			   UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
+			sc->cue_ed[CUE_ENDPT_INTR] = ed->bEndpointAddress;
+		}
+	}
+
+	mtx_init(&sc->cue_mtx, device_get_nameunit(self), MTX_NETWORK_LOCK,
+	    MTX_DEF | MTX_RECURSE);
+	CUE_LOCK(sc);
+
+#ifdef notdef
+	/* Reset the adapter. */
+	cue_reset(sc);
+#endif
+	/*
+	 * Get station address.
+	 */
+	cue_getmac(sc, &eaddr);
+
+	ifp = sc->cue_ifp = if_alloc(IFT_ETHER);
+	if (ifp == NULL) {
+		device_printf(sc->cue_dev, "can not if_alloc()\n");
+		CUE_UNLOCK(sc);
+		mtx_destroy(&sc->cue_mtx);
+		return ENXIO;
+	}
+	ifp->if_softc = sc;
+	if_initname(ifp, "cue", device_get_unit(sc->cue_dev));
+	ifp->if_mtu = ETHERMTU;
+	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST |
+	    IFF_NEEDSGIANT;
+	ifp->if_ioctl = cue_ioctl;
+	ifp->if_start = cue_start;
+	ifp->if_watchdog = cue_watchdog;
+	ifp->if_init = cue_init;
+	ifp->if_baudrate = 10000000;
+	ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
+
+	sc->cue_qdat.ifp = ifp;
+	sc->cue_qdat.if_rxstart = cue_rxstart;
+
+	/*
+	 * Call MI attach routine.
+	 */
+	ether_ifattach(ifp, eaddr);
+	callout_handle_init(&sc->cue_stat_ch);
+	usb_register_netisr();
+	sc->cue_dying = 0;
+
+	CUE_UNLOCK(sc);
+	return 0;
+}
+
+static int
+cue_detach(device_t dev)
+{
+	struct cue_softc	*sc;
+	struct ifnet		*ifp;
+
+	sc = device_get_softc(dev);
+	CUE_LOCK(sc);
+	ifp = sc->cue_ifp;
+
+	sc->cue_dying = 1;
+	untimeout(cue_tick, sc, sc->cue_stat_ch);
+	ether_ifdetach(ifp);
+	if_free(ifp);
+
+	if (sc->cue_ep[CUE_ENDPT_TX] != NULL)
+		usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_TX]);
+	if (sc->cue_ep[CUE_ENDPT_RX] != NULL)
+		usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_RX]);
+	if (sc->cue_ep[CUE_ENDPT_INTR] != NULL)
+		usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_INTR]);
+
+	CUE_UNLOCK(sc);
+	mtx_destroy(&sc->cue_mtx);
+
+	return(0);
+}
+
+static void
+cue_rxstart(struct ifnet *ifp)
+{
+	struct cue_softc	*sc;
+	struct ue_chain	*c;
+
+	sc = ifp->if_softc;
+	CUE_LOCK(sc);
+	c = &sc->cue_cdata.ue_rx_chain[sc->cue_cdata.ue_rx_prod];
+
+	c->ue_mbuf = usb_ether_newbuf();
+	if (c->ue_mbuf == NULL) {
+		device_printf(sc->cue_dev, "no memory for rx list "
+		    "-- packet dropped!\n");
+		ifp->if_ierrors++;
+		CUE_UNLOCK(sc);
+		return;
+	}
+
+	/* Setup new transfer. */
+	usbd_setup_xfer(c->ue_xfer, sc->cue_ep[CUE_ENDPT_RX],
+	    c, mtod(c->ue_mbuf, char *), UE_BUFSZ, USBD_SHORT_XFER_OK,
+	    USBD_NO_TIMEOUT, cue_rxeof);
+	usbd_transfer(c->ue_xfer);
+	CUE_UNLOCK(sc);
+
+	return;
+}
+
+/*
+ * A frame has been uploaded: pass the resulting mbuf chain up to
+ * the higher level protocols.
+ */
+static void
+cue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
+{
+	struct cue_softc	*sc;
+	struct ue_chain	*c;
+        struct mbuf		*m;
+        struct ifnet		*ifp;
+	int			total_len = 0;
+	u_int16_t		len;
+
+	c = priv;
+	sc = c->ue_sc;
+	CUE_LOCK(sc);
+	ifp = sc->cue_ifp;
+
+	if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
+		CUE_UNLOCK(sc);
+		return;
+	}
+
+	if (status != USBD_NORMAL_COMPLETION) {
+		if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
+			CUE_UNLOCK(sc);
+			return;
+		}
+		if (usbd_ratecheck(&sc->cue_rx_notice))
+			device_printf(sc->cue_dev, "usb error on rx: %s\n",
+			    usbd_errstr(status));
+		if (status == USBD_STALLED)
+			usbd_clear_endpoint_stall(sc->cue_ep[CUE_ENDPT_RX]);
+		goto done;
+	}
+
+	usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
+
+	m = c->ue_mbuf;
+	len = *mtod(m, u_int16_t *);
+
+	/* No errors; receive the packet. */
+	total_len = len;
+
+	if (len < sizeof(struct ether_header)) {
+		ifp->if_ierrors++;
+		goto done;
+	}
+
+	ifp->if_ipackets++;
+	m_adj(m, sizeof(u_int16_t));
+	m->m_pkthdr.rcvif = (void *)&sc->cue_qdat;
+	m->m_pkthdr.len = m->m_len = total_len;
+
+	/* Put the packet on the special USB input queue. */
+	usb_ether_input(m);
+	CUE_UNLOCK(sc);
+
+	return;
+done:
+	/* Setup new transfer. */
+	usbd_setup_xfer(c->ue_xfer, sc->cue_ep[CUE_ENDPT_RX],
+	    c, mtod(c->ue_mbuf, char *), UE_BUFSZ, USBD_SHORT_XFER_OK,
+	    USBD_NO_TIMEOUT, cue_rxeof);
+	usbd_transfer(c->ue_xfer);
+	CUE_UNLOCK(sc);
+
+	return;
+}
+
+/*
+ * A frame was downloaded to the chip. It's safe for us to clean up
+ * the list buffers.
+ */
+
+static void
+cue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
+{
+	struct cue_softc	*sc;
+	struct ue_chain	*c;
+	struct ifnet		*ifp;
+	usbd_status		err;
+
+	c = priv;
+	sc = c->ue_sc;
+	CUE_LOCK(sc);
+	ifp = sc->cue_ifp;
+
+	if (status != USBD_NORMAL_COMPLETION) {
+		if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
+			CUE_UNLOCK(sc);
+			return;
+		}
+		device_printf(sc->cue_dev, "usb error on tx: %s\n",
+		    usbd_errstr(status));
+		if (status == USBD_STALLED)
+			usbd_clear_endpoint_stall(sc->cue_ep[CUE_ENDPT_TX]);
+		CUE_UNLOCK(sc);
+		return;
+	}
+
+	ifp->if_timer = 0;
+	ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
+	usbd_get_xfer_status(c->ue_xfer, NULL, NULL, NULL, &err);
+
+	if (c->ue_mbuf != NULL) {
+		c->ue_mbuf->m_pkthdr.rcvif = ifp;
+		usb_tx_done(c->ue_mbuf);
+		c->ue_mbuf = NULL;
+	}
+
+	if (err)
+		ifp->if_oerrors++;
+	else
+		ifp->if_opackets++;
+
+	CUE_UNLOCK(sc);
+
+	return;
+}
+
+static void
+cue_tick(void *xsc)
+{
+	struct cue_softc	*sc;
+	struct ifnet		*ifp;
+
+	sc = xsc;
+
+	if (sc == NULL)
+		return;
+
+	CUE_LOCK(sc);
+
+	ifp = sc->cue_ifp;
+
+	ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_SINGLECOLL);
+	ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_MULTICOLL);
+	ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_EXCESSCOLL);
+
+	if (cue_csr_read_2(sc, CUE_RX_FRAMEERR))
+		ifp->if_ierrors++;
+
+	sc->cue_stat_ch = timeout(cue_tick, sc, hz);
+
+	CUE_UNLOCK(sc);
+
+	return;
+}
+
+static int
+cue_encap(struct cue_softc *sc, struct mbuf *m, int idx)
+{
+	int			total_len;
+	struct ue_chain	*c;
+	usbd_status		err;
+
+	c = &sc->cue_cdata.ue_tx_chain[idx];
+
+	/*
+	 * Copy the mbuf data into a contiguous buffer, leaving two
+	 * bytes at the beginning to hold the frame length.
+	 */
+	m_copydata(m, 0, m->m_pkthdr.len, c->ue_buf + 2);
+	c->ue_mbuf = m;
+
+	total_len = m->m_pkthdr.len + 2;
+
+	/* The first two bytes are the frame length */
+	c->ue_buf[0] = (u_int8_t)m->m_pkthdr.len;
+	c->ue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8);
+
+	usbd_setup_xfer(c->ue_xfer, sc->cue_ep[CUE_ENDPT_TX],
+	    c, c->ue_buf, total_len, 0, 10000, cue_txeof);
+
+	/* Transmit */
+	err = usbd_transfer(c->ue_xfer);
+	if (err != USBD_IN_PROGRESS) {
+		cue_stop(sc);
+		return(EIO);
+	}
+
+	sc->cue_cdata.ue_tx_cnt++;
+
+	return(0);
+}
+
+static void
+cue_start(struct ifnet *ifp)
+{
+	struct cue_softc	*sc;
+	struct mbuf		*m_head = NULL;
+
+	sc = ifp->if_softc;
+	CUE_LOCK(sc);
+
+	if (ifp->if_drv_flags & IFF_DRV_OACTIVE) {
+		CUE_UNLOCK(sc);
+		return;
+	}
+
+	IF_DEQUEUE(&ifp->if_snd, m_head);
+	if (m_head == NULL) {
+		CUE_UNLOCK(sc);
+		return;
+	}
+
+	if (cue_encap(sc, m_head, 0)) {
+		IF_PREPEND(&ifp->if_snd, m_head);
+		ifp->if_drv_flags |= IFF_DRV_OACTIVE;
+		CUE_UNLOCK(sc);
+		return;
+	}
+
+	/*
+	 * If there's a BPF listener, bounce a copy of this frame
+	 * to him.
+	 */
+	BPF_MTAP(ifp, m_head);
+
+	ifp->if_drv_flags |= IFF_DRV_OACTIVE;
+
+	/*
+	 * Set a timeout in case the chip goes out to lunch.
+	 */
+	ifp->if_timer = 5;
+	CUE_UNLOCK(sc);
+
+	return;
+}
+
+static void
+cue_init(void *xsc)
+{
+	struct cue_softc	*sc = xsc;
+	struct ifnet		*ifp = sc->cue_ifp;
+	struct ue_chain	*c;
+	usbd_status		err;
+	int			i;
+
+	if (ifp->if_drv_flags & IFF_DRV_RUNNING)
+		return;
+
+	CUE_LOCK(sc);
+
+	/*
+	 * Cancel pending I/O and free all RX/TX buffers.
+	 */
+#ifdef foo
+	cue_reset(sc);
+#endif
+
+	/* Set MAC address */
+	for (i = 0; i < ETHER_ADDR_LEN; i++)
+		cue_csr_write_1(sc, CUE_PAR0 - i, IF_LLADDR(sc->cue_ifp)[i]);
+
+	/* Enable RX logic. */
+	cue_csr_write_1(sc, CUE_ETHCTL, CUE_ETHCTL_RX_ON|CUE_ETHCTL_MCAST_ON);
+
+	 /* If we want promiscuous mode, set the allframes bit. */
+	if (ifp->if_flags & IFF_PROMISC) {
+		CUE_SETBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC);
+	} else {
+		CUE_CLRBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC);
+	}
+
+	/* Init TX ring. */
+	if (usb_ether_tx_list_init(sc, &sc->cue_cdata,
+	    sc->cue_udev) == ENOBUFS) {
+		device_printf(sc->cue_dev, "tx list init failed\n");
+		CUE_UNLOCK(sc);
+		return;
+	}
+
+	/* Init RX ring. */
+	if (usb_ether_rx_list_init(sc, &sc->cue_cdata,
+	    sc->cue_udev) == ENOBUFS) {
+		device_printf(sc->cue_dev, "rx list init failed\n");
+		CUE_UNLOCK(sc);
+		return;
+	}
+
+	/* Load the multicast filter. */
+	cue_setmulti(sc);
+
+	/*
+	 * Set the number of RX and TX buffers that we want
+	 * to reserve inside the ASIC.
+	 */
+	cue_csr_write_1(sc, CUE_RX_BUFPKTS, CUE_RX_FRAMES);
+	cue_csr_write_1(sc, CUE_TX_BUFPKTS, CUE_TX_FRAMES);
+
+	/* Set advanced operation modes. */
+	cue_csr_write_1(sc, CUE_ADVANCED_OPMODES,
+	    CUE_AOP_EMBED_RXLEN|0x01); /* 1 wait state */
+
+	/* Program the LED operation. */
+	cue_csr_write_1(sc, CUE_LEDCTL, CUE_LEDCTL_FOLLOW_LINK);
+
+	/* Open RX and TX pipes. */
+	err = usbd_open_pipe(sc->cue_iface, sc->cue_ed[CUE_ENDPT_RX],
+	    USBD_EXCLUSIVE_USE, &sc->cue_ep[CUE_ENDPT_RX]);
+	if (err) {
+		device_printf(sc->cue_dev, "open rx pipe failed: %s\n",
+		    usbd_errstr(err));
+		CUE_UNLOCK(sc);
+		return;
+	}
+	err = usbd_open_pipe(sc->cue_iface, sc->cue_ed[CUE_ENDPT_TX],
+	    USBD_EXCLUSIVE_USE, &sc->cue_ep[CUE_ENDPT_TX]);
+	if (err) {
+		device_printf(sc->cue_dev, "open tx pipe failed: %s\n",
+		    usbd_errstr(err));
+		CUE_UNLOCK(sc);
+		return;
+	}
+
+	/* Start up the receive pipe. */
+	for (i = 0; i < UE_RX_LIST_CNT; i++) {
+		c = &sc->cue_cdata.ue_rx_chain[i];
+		usbd_setup_xfer(c->ue_xfer, sc->cue_ep[CUE_ENDPT_RX],
+		    c, mtod(c->ue_mbuf, char *), UE_BUFSZ,
+		    USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, cue_rxeof);
+		usbd_transfer(c->ue_xfer);
+	}
+
+	ifp->if_drv_flags |= IFF_DRV_RUNNING;
+	ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
+
+	CUE_UNLOCK(sc);
+
+	sc->cue_stat_ch = timeout(cue_tick, sc, hz);
+
+	return;
+}
+
+static int
+cue_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
+{
+	struct cue_softc	*sc = ifp->if_softc;
+	int			error = 0;
+
+	CUE_LOCK(sc);
+
+	switch(command) {
+	case SIOCSIFFLAGS:
+		if (ifp->if_flags & IFF_UP) {
+			if (ifp->if_drv_flags & IFF_DRV_RUNNING &&
+			    ifp->if_flags & IFF_PROMISC &&
+			    !(sc->cue_if_flags & IFF_PROMISC)) {
+				CUE_SETBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC);
+				cue_setmulti(sc);
+			} else if (ifp->if_drv_flags & IFF_DRV_RUNNING &&
+			    !(ifp->if_flags & IFF_PROMISC) &&
+			    sc->cue_if_flags & IFF_PROMISC) {
+				CUE_CLRBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC);
+				cue_setmulti(sc);
+			} else if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
+				cue_init(sc);
+		} else {
+			if (ifp->if_drv_flags & IFF_DRV_RUNNING)
+				cue_stop(sc);
+		}
+		sc->cue_if_flags = ifp->if_flags;
+		error = 0;
+		break;
+	case SIOCADDMULTI:
+	case SIOCDELMULTI:
+		cue_setmulti(sc);
+		error = 0;
+		break;
+	default:
+		error = ether_ioctl(ifp, command, data);
+		break;
+	}
+
+	CUE_UNLOCK(sc);
+
+	return(error);
+}
+
+static void
+cue_watchdog(struct ifnet *ifp)
+{
+	struct cue_softc	*sc;
+	struct ue_chain	*c;
+	usbd_status		stat;
+
+	sc = ifp->if_softc;
+	CUE_LOCK(sc);
+
+	ifp->if_oerrors++;
+	device_printf(sc->cue_dev, "watchdog timeout\n");
+
+	c = &sc->cue_cdata.ue_tx_chain[0];
+	usbd_get_xfer_status(c->ue_xfer, NULL, NULL, NULL, &stat);
+	cue_txeof(c->ue_xfer, c, stat);
+
+	if (ifp->if_snd.ifq_head != NULL)
+		cue_start(ifp);
+	CUE_UNLOCK(sc);
+
+	return;
+}
+
+/*
+ * Stop the adapter and free any mbufs allocated to the
+ * RX and TX lists.
+ */
+static void
+cue_stop(struct cue_softc *sc)
+{
+	usbd_status		err;
+	struct ifnet		*ifp;
+
+	CUE_LOCK(sc);
+
+	ifp = sc->cue_ifp;
+	ifp->if_timer = 0;
+
+	cue_csr_write_1(sc, CUE_ETHCTL, 0);
+	cue_reset(sc);
+	untimeout(cue_tick, sc, sc->cue_stat_ch);
+
+	/* Stop transfers. */
+	if (sc->cue_ep[CUE_ENDPT_RX] != NULL) {
+		err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_RX]);
+		if (err) {
+			device_printf(sc->cue_dev, "abort rx pipe failed: %s\n",
+		    	usbd_errstr(err));
+		}
+		err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_RX]);
+		if (err) {
+			device_printf(sc->cue_dev, "close rx pipe failed: %s\n",
+		    	usbd_errstr(err));
+		}
+		sc->cue_ep[CUE_ENDPT_RX] = NULL;
+	}
+
+	if (sc->cue_ep[CUE_ENDPT_TX] != NULL) {
+		err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_TX]);
+		if (err) {
+			device_printf(sc->cue_dev, "abort tx pipe failed: %s\n",
+		    	usbd_errstr(err));
+		}
+		err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_TX]);
+		if (err) {
+			device_printf(sc->cue_dev, "close tx pipe failed: %s\n",
+			    usbd_errstr(err));
+		}
+		sc->cue_ep[CUE_ENDPT_TX] = NULL;
+	}
+
+	if (sc->cue_ep[CUE_ENDPT_INTR] != NULL) {
+		err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_INTR]);
+		if (err) {
+			device_printf(sc->cue_dev, "abort intr pipe failed: %s\n",
+		    	usbd_errstr(err));
+		}
+		err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_INTR]);
+		if (err) {
+			device_printf(sc->cue_dev, "close intr pipe failed: %s\n",
+			    usbd_errstr(err));
+		}
+		sc->cue_ep[CUE_ENDPT_INTR] = NULL;
+	}
+
+	/* Free RX resources. */
+	usb_ether_rx_list_free(&sc->cue_cdata);
+	/* Free TX resources. */
+	usb_ether_tx_list_free(&sc->cue_cdata);
+
+	ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
+	CUE_UNLOCK(sc);
+
+	return;
+}
+
+/*
+ * Stop all chip I/O so that the kernel's probe routines don't
+ * get confused by errant DMAs when rebooting.
+ */
+static int
+cue_shutdown(device_t dev)
+{
+	struct cue_softc	*sc;
+
+	sc = device_get_softc(dev);
+
+	CUE_LOCK(sc);
+	cue_reset(sc);
+	cue_stop(sc);
+	CUE_UNLOCK(sc);
+
+	return (0);
+}