2 * Copyright (c) 1997, 1998, 1999, 2000
3 * Bill Paul <wpaul@ee.columbia.edu>. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
32 * $FreeBSD: src/sys/dev/usb/if_kue.c,v 1.17.2.9 2003/04/13 02:39:25 murray Exp $
33 * $DragonFly: src/sys/dev/netif/kue/if_kue.c,v 1.29 2008/01/06 16:55:50 swildner Exp $
37 * Kawasaki LSI KL5KUSB101B USB to ethernet adapter driver.
39 * Written by Bill Paul <wpaul@ee.columbia.edu>
40 * Electrical Engineering Department
41 * Columbia University, New York City
45 * The KLSI USB to ethernet adapter chip contains an USB serial interface,
46 * ethernet MAC and embedded microcontroller (called the QT Engine).
47 * The chip must have firmware loaded into it before it will operate.
48 * Packets are passed between the chip and host via bulk transfers.
49 * There is an interrupt endpoint mentioned in the software spec, however
50 * it's currently unused. This device is 10Mbps half-duplex only, hence
51 * there is no media selection logic. The MAC supports a 128 entry
52 * multicast filter, though the exact size of the filter can depend
53 * on the firmware. Curiously, while the software spec describes various
54 * ethernet statistics counters, my sample adapter and firmware combination
55 * claims not to support any statistics counters at all.
57 * Note that once we load the firmware in the device, we have to be
58 * careful not to load it again: if you restart your computer but
59 * leave the adapter attached to the USB controller, it may remain
60 * powered on and retain its firmware. In this case, we don't need
61 * to load the firmware a second time.
63 * Special thanks to Rob Furr for providing an ADS Technologies
64 * adapter for development and testing. No monkeys were harmed during
65 * the development of this driver.
68 #include <sys/param.h>
69 #include <sys/systm.h>
70 #include <sys/sockio.h>
72 #include <sys/malloc.h>
73 #include <sys/kernel.h>
74 #include <sys/socket.h>
78 #include <net/ifq_var.h>
79 #include <net/if_arp.h>
80 #include <net/ethernet.h>
81 #include <net/if_dl.h>
82 #include <net/if_media.h>
85 #include <machine/clock.h>
87 #include <bus/usb/usb.h>
88 #include <bus/usb/usbdi.h>
89 #include <bus/usb/usbdi_util.h>
90 #include <bus/usb/usbdivar.h>
91 #include <bus/usb/usb_ethersubr.h>
93 #include "if_kuereg.h"
94 #include <bus/usb/kue_fw.h>
96 MODULE_DEPEND(kue, usb, 1, 1, 1);
99 * Various supported device vendors/products.
101 static const struct usb_devno kue_devs[] = {
102 { USB_DEVICE(0x03e8, 0x0008) }, /* AOX USB101 */
103 { USB_DEVICE(0x04bb, 0x0901) }, /* I-O DATA USBETT */
104 { USB_DEVICE(0x0506, 0x03e8) }, /* 3Com 3C19250 */
105 { USB_DEVICE(0x0557, 0x2002) }, /* ATen UC10T */
106 { USB_DEVICE(0x0565, 0x0002) }, /* Peracom Ethernet adapter */
107 { USB_DEVICE(0x0565, 0x0003) }, /* Peracom Ethernet adapter*/
108 { USB_DEVICE(0x0565, 0x0005) }, /* Peracom Ethernet adapter */
109 { USB_DEVICE(0x05e9, 0x0008) }, /* AOX (rebranded Kawasaki?) USB101*/
110 { USB_DEVICE(0x05e9, 0x0008) }, /* Kawasaki LSI DUH3E10BT */
111 { USB_DEVICE(0x05e9, 0x0009) }, /* Kawasaki LSI DUH3E10BTN */
112 { USB_DEVICE(0x066b, 0x2202) }, /* Linksys USB10T */
113 { USB_DEVICE(0x06e1, 0x0008) }, /* ADS UBS-10BT */
114 { USB_DEVICE(0x0707, 0x0100) }, /* SMC 2102USB */
115 { USB_DEVICE(0x07aa, 0x0001) }, /* Corega USB-T*/
116 { USB_DEVICE(0x07b8, 0x4000) }, /* AboCom URE450 */
117 { USB_DEVICE(0x0846, 0x1001) }, /* Netgear EA101 */
118 { USB_DEVICE(0x1645, 0x0005) }, /* Entrega E45*/
119 { USB_DEVICE(0x2001, 0x4000) }, /* D-Link DSB650C */
122 static int kue_match(device_t);
123 static int kue_attach(device_t);
124 static int kue_detach(device_t);
125 static void kue_shutdown(device_t);
126 static int kue_tx_list_init(struct kue_softc *);
127 static int kue_rx_list_init(struct kue_softc *);
128 static int kue_newbuf(struct kue_softc *, struct kue_chain *, struct mbuf *);
129 static int kue_encap(struct kue_softc *, struct mbuf *, int);
130 static void kue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
131 static void kue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
132 static void kue_start(struct ifnet *);
133 static void kue_rxstart(struct ifnet *);
134 static int kue_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
135 static void kue_init(void *);
136 static void kue_stop(struct kue_softc *);
137 static void kue_watchdog(struct ifnet *);
139 static void kue_setmulti(struct kue_softc *);
140 static void kue_reset(struct kue_softc *);
142 static usbd_status kue_do_request(usbd_device_handle,
143 usb_device_request_t *, void *);
144 static usbd_status kue_ctl(struct kue_softc *, int, u_int8_t,
145 u_int16_t, char *, int);
146 static usbd_status kue_setword(struct kue_softc *, u_int8_t, u_int16_t);
147 static int kue_load_fw(struct kue_softc *);
149 static device_method_t kue_methods[] = {
150 /* Device interface */
151 DEVMETHOD(device_probe, kue_match),
152 DEVMETHOD(device_attach, kue_attach),
153 DEVMETHOD(device_detach, kue_detach),
154 DEVMETHOD(device_shutdown, kue_shutdown),
159 static driver_t kue_driver = {
162 sizeof(struct kue_softc)
165 static devclass_t kue_devclass;
167 DECLARE_DUMMY_MODULE(if_kue);
168 DRIVER_MODULE(kue, uhub, kue_driver, kue_devclass, usbd_driver_load, 0);
171 * We have a custom do_request function which is almost like the
172 * regular do_request function, except it has a much longer timeout.
173 * Why? Because we need to make requests over the control endpoint
174 * to download the firmware to the device, which can take longer
175 * than the default timeout.
178 kue_do_request(usbd_device_handle dev, usb_device_request_t *req, void *data)
180 usbd_xfer_handle xfer;
183 xfer = usbd_alloc_xfer(dev);
184 usbd_setup_default_xfer(xfer, dev, 0, 500000, req,
185 data, UGETW(req->wLength), USBD_SHORT_XFER_OK, 0);
186 err = usbd_sync_transfer(xfer);
187 usbd_free_xfer(xfer);
192 kue_setword(struct kue_softc *sc, u_int8_t breq, u_int16_t word)
194 usbd_device_handle dev;
195 usb_device_request_t req;
199 return(USBD_NORMAL_COMPLETION);
205 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
208 USETW(req.wValue, word);
209 USETW(req.wIndex, 0);
210 USETW(req.wLength, 0);
212 err = kue_do_request(dev, &req, NULL);
220 kue_ctl(struct kue_softc *sc, int rw, u_int8_t breq, u_int16_t val,
223 usbd_device_handle dev;
224 usb_device_request_t req;
230 return(USBD_NORMAL_COMPLETION);
234 if (rw == KUE_CTL_WRITE)
235 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
237 req.bmRequestType = UT_READ_VENDOR_DEVICE;
240 USETW(req.wValue, val);
241 USETW(req.wIndex, 0);
242 USETW(req.wLength, len);
244 err = kue_do_request(dev, &req, data);
252 kue_load_fw(struct kue_softc *sc)
255 usb_device_descriptor_t *dd;
258 dd = &sc->kue_udev->ddesc;
259 hwrev = UGETW(dd->bcdDevice);
262 * First, check if we even need to load the firmware.
263 * If the device was still attached when the system was
264 * rebooted, it may already have firmware loaded in it.
265 * If this is the case, we don't need to do it again.
266 * And in fact, if we try to load it again, we'll hang,
267 * so we have to avoid this condition if we don't want
270 * We can test this quickly by checking the bcdRevision
271 * code. The NIC will return a different revision code if
272 * it's probed while the firmware is still loaded and
278 /* Load code segment */
279 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN,
280 0, kue_code_seg, sizeof(kue_code_seg));
282 kprintf("kue%d: failed to load code segment: %s\n",
283 sc->kue_unit, usbd_errstr(err));
287 /* Load fixup segment */
288 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN,
289 0, kue_fix_seg, sizeof(kue_fix_seg));
291 kprintf("kue%d: failed to load fixup segment: %s\n",
292 sc->kue_unit, usbd_errstr(err));
296 /* Send trigger command. */
297 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN,
298 0, kue_trig_seg, sizeof(kue_trig_seg));
300 kprintf("kue%d: failed to load trigger segment: %s\n",
301 sc->kue_unit, usbd_errstr(err));
309 kue_setmulti(struct kue_softc *sc)
312 struct ifmultiaddr *ifma;
315 ifp = &sc->arpcom.ac_if;
317 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
318 sc->kue_rxfilt |= KUE_RXFILT_ALLMULTI;
319 sc->kue_rxfilt &= ~KUE_RXFILT_MULTICAST;
320 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt);
324 sc->kue_rxfilt &= ~KUE_RXFILT_ALLMULTI;
326 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
327 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
329 LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
332 if (ifma->ifma_addr->sa_family != AF_LINK)
335 * If there are too many addresses for the
336 * internal filter, switch over to allmulti mode.
338 if (i == KUE_MCFILTCNT(sc))
340 bcopy(LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
341 KUE_MCFILT(sc, i), ETHER_ADDR_LEN);
345 if (i == KUE_MCFILTCNT(sc))
346 sc->kue_rxfilt |= KUE_RXFILT_ALLMULTI;
348 sc->kue_rxfilt |= KUE_RXFILT_MULTICAST;
349 kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MCAST_FILTERS,
350 i, sc->kue_mcfilters, i * ETHER_ADDR_LEN);
353 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt);
359 * Issue a SET_CONFIGURATION command to reset the MAC. This should be
360 * done after the firmware is loaded into the adapter in order to
361 * bring it into proper operation.
364 kue_reset(struct kue_softc *sc)
366 if (usbd_set_config_no(sc->kue_udev, KUE_CONFIG_NO, 0) ||
367 usbd_device2interface_handle(sc->kue_udev, KUE_IFACE_IDX,
369 kprintf("kue%d: getting interface handle failed\n",
373 /* Wait a little while for the chip to get its brains in order. */
379 * Probe for a KLSI chip.
382 kue_match(device_t self)
384 struct usb_attach_arg *uaa = device_get_ivars(self);
386 if (uaa->iface == NULL)
389 return (usb_lookup(kue_devs, uaa->vendor, uaa->product) != NULL ?
390 UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
394 * Attach the interface. Allocate softc structures, do
395 * setup and ethernet/BPF attach.
398 kue_attach(device_t self)
400 struct kue_softc *sc = device_get_softc(self);
401 struct usb_attach_arg *uaa = device_get_ivars(self);
404 usb_interface_descriptor_t *id;
405 usb_endpoint_descriptor_t *ed;
408 sc->kue_iface = uaa->iface;
409 sc->kue_udev = uaa->device;
410 sc->kue_unit = device_get_unit(self);
412 id = usbd_get_interface_descriptor(uaa->iface);
414 /* Find endpoints. */
415 for (i = 0; i < id->bNumEndpoints; i++) {
416 ed = usbd_interface2endpoint_descriptor(uaa->iface, i);
418 kprintf("kue%d: couldn't get ep %d\n",
422 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
423 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
424 sc->kue_ed[KUE_ENDPT_RX] = ed->bEndpointAddress;
425 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
426 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
427 sc->kue_ed[KUE_ENDPT_TX] = ed->bEndpointAddress;
428 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
429 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
430 sc->kue_ed[KUE_ENDPT_INTR] = ed->bEndpointAddress;
434 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
435 mtx_init(&sc->kue_mtx, device_get_nameunit(self), MTX_NETWORK_LOCK,
436 MTX_DEF | MTX_RECURSE);
440 /* Load the firmware into the NIC. */
441 if (kue_load_fw(sc)) {
443 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
444 mtx_destroy(&sc->kue_mtx);
449 /* Reset the adapter. */
452 /* Read ethernet descriptor */
453 err = kue_ctl(sc, KUE_CTL_READ, KUE_CMD_GET_ETHER_DESCRIPTOR,
454 0, (char *)&sc->kue_desc, sizeof(sc->kue_desc));
456 sc->kue_mcfilters = kmalloc(KUE_MCFILTCNT(sc) * ETHER_ADDR_LEN,
459 ifp = &sc->arpcom.ac_if;
461 if_initname(ifp, "kue", sc->kue_unit);
462 ifp->if_mtu = ETHERMTU;
463 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
464 ifp->if_ioctl = kue_ioctl;
465 ifp->if_start = kue_start;
466 ifp->if_watchdog = kue_watchdog;
467 ifp->if_init = kue_init;
468 ifp->if_baudrate = 10000000;
469 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
470 ifq_set_ready(&ifp->if_snd);
473 * Call MI attach routine.
475 ether_ifattach(ifp, sc->kue_desc.kue_macaddr, NULL);
476 usb_register_netisr();
485 kue_detach(device_t dev)
487 struct kue_softc *sc;
490 sc = device_get_softc(dev);
492 ifp = &sc->arpcom.ac_if;
499 if (sc->kue_ep[KUE_ENDPT_TX] != NULL)
500 usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_TX]);
501 if (sc->kue_ep[KUE_ENDPT_RX] != NULL)
502 usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_RX]);
503 if (sc->kue_ep[KUE_ENDPT_INTR] != NULL)
504 usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_INTR]);
506 if (sc->kue_mcfilters != NULL)
507 kfree(sc->kue_mcfilters, M_USBDEV);
510 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
511 mtx_destroy(&sc->kue_mtx);
518 * Initialize an RX descriptor and attach an MBUF cluster.
521 kue_newbuf(struct kue_softc *sc, struct kue_chain *c, struct mbuf *m)
523 struct mbuf *m_new = NULL;
526 MGETHDR(m_new, MB_DONTWAIT, MT_DATA);
528 kprintf("kue%d: no memory for rx list "
529 "-- packet dropped!\n", sc->kue_unit);
533 MCLGET(m_new, MB_DONTWAIT);
534 if (!(m_new->m_flags & M_EXT)) {
535 kprintf("kue%d: no memory for rx list "
536 "-- packet dropped!\n", sc->kue_unit);
540 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
543 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
544 m_new->m_data = m_new->m_ext.ext_buf;
553 kue_rx_list_init(struct kue_softc *sc)
555 struct kue_cdata *cd;
560 for (i = 0; i < KUE_RX_LIST_CNT; i++) {
561 c = &cd->kue_rx_chain[i];
564 if (kue_newbuf(sc, c, NULL) == ENOBUFS)
566 if (c->kue_xfer == NULL) {
567 c->kue_xfer = usbd_alloc_xfer(sc->kue_udev);
568 if (c->kue_xfer == NULL)
577 kue_tx_list_init(struct kue_softc *sc)
579 struct kue_cdata *cd;
584 for (i = 0; i < KUE_TX_LIST_CNT; i++) {
585 c = &cd->kue_tx_chain[i];
589 if (c->kue_xfer == NULL) {
590 c->kue_xfer = usbd_alloc_xfer(sc->kue_udev);
591 if (c->kue_xfer == NULL)
594 c->kue_buf = kmalloc(KUE_BUFSZ, M_USBDEV, M_WAITOK);
601 kue_rxstart(struct ifnet *ifp)
603 struct kue_softc *sc;
608 c = &sc->kue_cdata.kue_rx_chain[sc->kue_cdata.kue_rx_prod];
610 if (kue_newbuf(sc, c, NULL) == ENOBUFS) {
615 /* Setup new transfer. */
616 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX],
617 c, mtod(c->kue_mbuf, char *), KUE_BUFSZ, USBD_SHORT_XFER_OK,
618 USBD_NO_TIMEOUT, kue_rxeof);
619 usbd_transfer(c->kue_xfer);
627 * A frame has been uploaded: pass the resulting mbuf chain up to
628 * the higher level protocols.
631 kue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
633 struct kue_softc *sc;
643 ifp = &sc->arpcom.ac_if;
645 if (!(ifp->if_flags & IFF_RUNNING)) {
650 if (status != USBD_NORMAL_COMPLETION) {
651 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
655 if (usbd_ratecheck(&sc->kue_rx_notice))
656 kprintf("kue%d: usb error on rx: %s\n", sc->kue_unit,
657 usbd_errstr(status));
658 if (status == USBD_STALLED)
659 usbd_clear_endpoint_stall(sc->kue_ep[KUE_ENDPT_RX]);
663 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
668 len = *mtod(m, u_int16_t *);
669 m_adj(m, sizeof(u_int16_t));
671 /* No errors; receive the packet. */
674 if (len < sizeof(struct ether_header)) {
680 m->m_pkthdr.rcvif = ifp;
681 m->m_pkthdr.len = m->m_len = total_len;
683 /* Put the packet on the special USB input queue. */
692 /* Setup new transfer. */
693 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX],
694 c, mtod(c->kue_mbuf, char *), KUE_BUFSZ, USBD_SHORT_XFER_OK,
695 USBD_NO_TIMEOUT, kue_rxeof);
696 usbd_transfer(c->kue_xfer);
703 * A frame was downloaded to the chip. It's safe for us to clean up
708 kue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
710 struct kue_softc *sc;
719 ifp = &sc->arpcom.ac_if;
721 ifp->if_flags &= ~IFF_OACTIVE;
723 if (status != USBD_NORMAL_COMPLETION) {
724 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
728 kprintf("kue%d: usb error on tx: %s\n", sc->kue_unit,
729 usbd_errstr(status));
730 if (status == USBD_STALLED)
731 usbd_clear_endpoint_stall(sc->kue_ep[KUE_ENDPT_TX]);
736 usbd_get_xfer_status(c->kue_xfer, NULL, NULL, NULL, &err);
738 if (c->kue_mbuf != NULL) {
739 m_freem(c->kue_mbuf);
748 if (!ifq_is_empty(&ifp->if_snd))
749 (*ifp->if_start)(ifp);
757 kue_encap(struct kue_softc *sc, struct mbuf *m, int idx)
763 c = &sc->kue_cdata.kue_tx_chain[idx];
766 * Copy the mbuf data into a contiguous buffer, leaving two
767 * bytes at the beginning to hold the frame length.
769 m_copydata(m, 0, m->m_pkthdr.len, c->kue_buf + 2);
772 total_len = m->m_pkthdr.len + 2;
773 total_len += 64 - (total_len % 64);
775 /* Frame length is specified in the first 2 bytes of the buffer. */
776 c->kue_buf[0] = (u_int8_t)m->m_pkthdr.len;
777 c->kue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8);
779 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_TX],
780 c, c->kue_buf, total_len, 0, 10000, kue_txeof);
783 err = usbd_transfer(c->kue_xfer);
784 if (err != USBD_IN_PROGRESS) {
789 sc->kue_cdata.kue_tx_cnt++;
795 kue_start(struct ifnet *ifp)
797 struct kue_softc *sc;
798 struct mbuf *m_head = NULL;
803 if (ifp->if_flags & IFF_OACTIVE) {
808 m_head = ifq_poll(&ifp->if_snd);
809 if (m_head == NULL) {
814 if (kue_encap(sc, m_head, 0)) {
815 ifp->if_flags |= IFF_OACTIVE;
819 ifq_dequeue(&ifp->if_snd, m_head);
822 * If there's a BPF listener, bounce a copy of this frame
825 BPF_MTAP(ifp, m_head);
827 ifp->if_flags |= IFF_OACTIVE;
830 * Set a timeout in case the chip goes out to lunch.
841 struct kue_softc *sc = xsc;
842 struct ifnet *ifp = &sc->arpcom.ac_if;
849 if (ifp->if_flags & IFF_RUNNING) {
854 /* Set MAC address */
855 kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MAC,
856 0, sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
858 sc->kue_rxfilt = KUE_RXFILT_UNICAST|KUE_RXFILT_BROADCAST;
860 /* If we want promiscuous mode, set the allframes bit. */
861 if (ifp->if_flags & IFF_PROMISC)
862 sc->kue_rxfilt |= KUE_RXFILT_PROMISC;
864 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt);
866 /* I'm not sure how to tune these. */
869 * Leave this one alone for now; setting it
870 * wrong causes lockups on some machines/controllers.
872 kue_setword(sc, KUE_CMD_SET_SOFS, 1);
874 kue_setword(sc, KUE_CMD_SET_URB_SIZE, 64);
877 if (kue_tx_list_init(sc) == ENOBUFS) {
878 kprintf("kue%d: tx list init failed\n", sc->kue_unit);
884 if (kue_rx_list_init(sc) == ENOBUFS) {
885 kprintf("kue%d: rx list init failed\n", sc->kue_unit);
890 /* Load the multicast filter. */
893 /* Open RX and TX pipes. */
894 err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_RX],
895 USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_RX]);
897 kprintf("kue%d: open rx pipe failed: %s\n",
898 sc->kue_unit, usbd_errstr(err));
903 err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_TX],
904 USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_TX]);
906 kprintf("kue%d: open tx pipe failed: %s\n",
907 sc->kue_unit, usbd_errstr(err));
912 /* Start up the receive pipe. */
913 for (i = 0; i < KUE_RX_LIST_CNT; i++) {
914 c = &sc->kue_cdata.kue_rx_chain[i];
915 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX],
916 c, mtod(c->kue_mbuf, char *), KUE_BUFSZ,
917 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, kue_rxeof);
918 usbd_transfer(c->kue_xfer);
921 ifp->if_flags |= IFF_RUNNING;
922 ifp->if_flags &= ~IFF_OACTIVE;
930 kue_ioctl(struct ifnet *ifp, u_long command, caddr_t data, struct ucred *cr)
932 struct kue_softc *sc = ifp->if_softc;
939 if (ifp->if_flags & IFF_UP) {
940 if (ifp->if_flags & IFF_RUNNING &&
941 ifp->if_flags & IFF_PROMISC &&
942 !(sc->kue_if_flags & IFF_PROMISC)) {
943 sc->kue_rxfilt |= KUE_RXFILT_PROMISC;
944 kue_setword(sc, KUE_CMD_SET_PKT_FILTER,
946 } else if (ifp->if_flags & IFF_RUNNING &&
947 !(ifp->if_flags & IFF_PROMISC) &&
948 sc->kue_if_flags & IFF_PROMISC) {
949 sc->kue_rxfilt &= ~KUE_RXFILT_PROMISC;
950 kue_setword(sc, KUE_CMD_SET_PKT_FILTER,
952 } else if (!(ifp->if_flags & IFF_RUNNING))
955 if (ifp->if_flags & IFF_RUNNING)
958 sc->kue_if_flags = ifp->if_flags;
967 error = ether_ioctl(ifp, command, data);
977 kue_watchdog(struct ifnet *ifp)
979 struct kue_softc *sc;
986 kprintf("kue%d: watchdog timeout\n", sc->kue_unit);
988 c = &sc->kue_cdata.kue_tx_chain[0];
989 usbd_get_xfer_status(c->kue_xfer, NULL, NULL, NULL, &stat);
990 kue_txeof(c->kue_xfer, c, stat);
992 if (ifq_is_empty(&ifp->if_snd))
1000 * Stop the adapter and free any mbufs allocated to the
1004 kue_stop(struct kue_softc *sc)
1011 ifp = &sc->arpcom.ac_if;
1014 /* Stop transfers. */
1015 if (sc->kue_ep[KUE_ENDPT_RX] != NULL) {
1016 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_RX]);
1018 kprintf("kue%d: abort rx pipe failed: %s\n",
1019 sc->kue_unit, usbd_errstr(err));
1021 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_RX]);
1023 kprintf("kue%d: close rx pipe failed: %s\n",
1024 sc->kue_unit, usbd_errstr(err));
1026 sc->kue_ep[KUE_ENDPT_RX] = NULL;
1029 if (sc->kue_ep[KUE_ENDPT_TX] != NULL) {
1030 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_TX]);
1032 kprintf("kue%d: abort tx pipe failed: %s\n",
1033 sc->kue_unit, usbd_errstr(err));
1035 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_TX]);
1037 kprintf("kue%d: close tx pipe failed: %s\n",
1038 sc->kue_unit, usbd_errstr(err));
1040 sc->kue_ep[KUE_ENDPT_TX] = NULL;
1043 if (sc->kue_ep[KUE_ENDPT_INTR] != NULL) {
1044 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_INTR]);
1046 kprintf("kue%d: abort intr pipe failed: %s\n",
1047 sc->kue_unit, usbd_errstr(err));
1049 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_INTR]);
1051 kprintf("kue%d: close intr pipe failed: %s\n",
1052 sc->kue_unit, usbd_errstr(err));
1054 sc->kue_ep[KUE_ENDPT_INTR] = NULL;
1057 /* Free RX resources. */
1058 for (i = 0; i < KUE_RX_LIST_CNT; i++) {
1059 if (sc->kue_cdata.kue_rx_chain[i].kue_buf != NULL) {
1060 kfree(sc->kue_cdata.kue_rx_chain[i].kue_buf, M_USBDEV);
1061 sc->kue_cdata.kue_rx_chain[i].kue_buf = NULL;
1063 if (sc->kue_cdata.kue_rx_chain[i].kue_mbuf != NULL) {
1064 m_freem(sc->kue_cdata.kue_rx_chain[i].kue_mbuf);
1065 sc->kue_cdata.kue_rx_chain[i].kue_mbuf = NULL;
1067 if (sc->kue_cdata.kue_rx_chain[i].kue_xfer != NULL) {
1068 usbd_free_xfer(sc->kue_cdata.kue_rx_chain[i].kue_xfer);
1069 sc->kue_cdata.kue_rx_chain[i].kue_xfer = NULL;
1073 /* Free TX resources. */
1074 for (i = 0; i < KUE_TX_LIST_CNT; i++) {
1075 if (sc->kue_cdata.kue_tx_chain[i].kue_buf != NULL) {
1076 kfree(sc->kue_cdata.kue_tx_chain[i].kue_buf, M_USBDEV);
1077 sc->kue_cdata.kue_tx_chain[i].kue_buf = NULL;
1079 if (sc->kue_cdata.kue_tx_chain[i].kue_mbuf != NULL) {
1080 m_freem(sc->kue_cdata.kue_tx_chain[i].kue_mbuf);
1081 sc->kue_cdata.kue_tx_chain[i].kue_mbuf = NULL;
1083 if (sc->kue_cdata.kue_tx_chain[i].kue_xfer != NULL) {
1084 usbd_free_xfer(sc->kue_cdata.kue_tx_chain[i].kue_xfer);
1085 sc->kue_cdata.kue_tx_chain[i].kue_xfer = NULL;
1089 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
1096 * Stop all chip I/O so that the kernel's probe routines don't
1097 * get confused by errant DMAs when rebooting.
1100 kue_shutdown(device_t dev)
1102 struct kue_softc *sc;
1104 sc = device_get_softc(dev);