mirror of
https://git.FreeBSD.org/src.git
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417d8f25fc
because the previous interface handle gets freed when the config number is set. This fixes a problem where memory could be accessed after it was freed when the interface was ifconfig'd up. Reviewed by: n_hibma
1133 lines
28 KiB
C
1133 lines
28 KiB
C
/*
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* Copyright (c) 1997, 1998, 1999, 2000
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* Bill Paul <wpaul@ee.columbia.edu>. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Bill Paul.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* Kawasaki LSI KL5KUSB101B USB to ethernet adapter driver.
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*
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* Written by Bill Paul <wpaul@ee.columbia.edu>
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* Electrical Engineering Department
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* Columbia University, New York City
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*/
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/*
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* The KLSI USB to ethernet adapter chip contains an USB serial interface,
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* ethernet MAC and embedded microcontroller (called the QT Engine).
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* The chip must have firmware loaded into it before it will operate.
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* Packets are passed between the chip and host via bulk transfers.
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* There is an interrupt endpoint mentioned in the software spec, however
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* it's currently unused. This device is 10Mbps half-duplex only, hence
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* there is no media selection logic. The MAC supports a 128 entry
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* multicast filter, though the exact size of the filter can depend
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* on the firmware. Curiously, while the software spec describes various
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* ethernet statistics counters, my sample adapter and firmware combination
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* claims not to support any statistics counters at all.
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*
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* Note that once we load the firmware in the device, we have to be
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* careful not to load it again: if you restart your computer but
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* leave the adapter attached to the USB controller, it may remain
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* powered on and retain its firmware. In this case, we don't need
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* to load the firmware a second time.
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*
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* Special thanks to Rob Furr for providing an ADS Technologies
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* adapter for development and testing. No monkeys were harmed during
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* the development of this driver.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/sockio.h>
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#include <sys/mbuf.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <net/ethernet.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <net/bpf.h>
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#include <sys/bus.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usbdi_util.h>
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#include <dev/usb/usbdivar.h>
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#include <dev/usb/usbdevs.h>
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#include <dev/usb/usb_ethersubr.h>
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#include <dev/usb/if_kuereg.h>
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#include <dev/usb/kue_fw.h>
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#ifndef lint
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static const char rcsid[] =
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"$FreeBSD$";
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#endif
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MODULE_DEPEND(if_kue, usb, 1, 1, 1);
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/*
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* Various supported device vendors/products.
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*/
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Static struct kue_type kue_devs[] = {
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{ USB_VENDOR_AOX, USB_PRODUCT_AOX_USB101 },
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{ USB_VENDOR_KLSI, USB_PRODUCT_AOX_USB101 },
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{ USB_VENDOR_ADS, USB_PRODUCT_ADS_UBS10BT },
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{ USB_VENDOR_ATEN, USB_PRODUCT_ATEN_UC10T },
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{ USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_EA101 },
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{ USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET },
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{ USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET2 },
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{ USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_E45 },
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{ USB_VENDOR_3COM, USB_PRODUCT_3COM_3C19250 },
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{ USB_VENDOR_COREGA, USB_PRODUCT_COREGA_ETHER_USB_T },
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{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650C },
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{ USB_VENDOR_SMC, USB_PRODUCT_SMC_2102USB },
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{ USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10T },
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{ USB_VENDOR_KLSI, USB_PRODUCT_KLSI_DUH3E10BT },
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{ USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET3 },
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{ USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBETT },
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{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_URE450 },
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{ 0, 0 }
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};
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Static struct usb_qdat kue_qdat;
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Static int kue_match(device_ptr_t);
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Static int kue_attach(device_ptr_t);
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Static int kue_detach(device_ptr_t);
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Static void kue_shutdown(device_ptr_t);
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Static int kue_tx_list_init(struct kue_softc *);
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Static int kue_rx_list_init(struct kue_softc *);
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Static int kue_newbuf(struct kue_softc *, struct kue_chain *, struct mbuf *);
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Static int kue_encap(struct kue_softc *, struct mbuf *, int);
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Static void kue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
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Static void kue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
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Static void kue_start(struct ifnet *);
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Static void kue_rxstart(struct ifnet *);
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Static int kue_ioctl(struct ifnet *, u_long, caddr_t);
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Static void kue_init(void *);
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Static void kue_stop(struct kue_softc *);
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Static void kue_watchdog(struct ifnet *);
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Static void kue_setmulti(struct kue_softc *);
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Static void kue_reset(struct kue_softc *);
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Static usbd_status kue_do_request(usbd_device_handle,
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usb_device_request_t *, void *);
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Static usbd_status kue_ctl(struct kue_softc *, int, u_int8_t,
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u_int16_t, char *, int);
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Static usbd_status kue_setword(struct kue_softc *, u_int8_t, u_int16_t);
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Static int kue_load_fw(struct kue_softc *);
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Static device_method_t kue_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, kue_match),
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DEVMETHOD(device_attach, kue_attach),
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DEVMETHOD(device_detach, kue_detach),
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DEVMETHOD(device_shutdown, kue_shutdown),
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{ 0, 0 }
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};
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Static driver_t kue_driver = {
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"kue",
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kue_methods,
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sizeof(struct kue_softc)
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};
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Static devclass_t kue_devclass;
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DRIVER_MODULE(if_kue, uhub, kue_driver, kue_devclass, usbd_driver_load, 0);
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/*
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* We have a custom do_request function which is almost like the
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* regular do_request function, except it has a much longer timeout.
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* Why? Because we need to make requests over the control endpoint
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* to download the firmware to the device, which can take longer
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* than the default timeout.
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*/
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Static usbd_status
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kue_do_request(usbd_device_handle dev, usb_device_request_t *req, void *data)
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{
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usbd_xfer_handle xfer;
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usbd_status err;
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xfer = usbd_alloc_xfer(dev);
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usbd_setup_default_xfer(xfer, dev, 0, 500000, req,
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data, UGETW(req->wLength), USBD_SHORT_XFER_OK, 0);
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err = usbd_sync_transfer(xfer);
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usbd_free_xfer(xfer);
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return(err);
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}
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Static usbd_status
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kue_setword(struct kue_softc *sc, u_int8_t breq, u_int16_t word)
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{
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usbd_device_handle dev;
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usb_device_request_t req;
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usbd_status err;
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if (sc->kue_dying)
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return(USBD_NORMAL_COMPLETION);
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dev = sc->kue_udev;
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KUE_LOCK(sc);
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req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
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req.bRequest = breq;
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USETW(req.wValue, word);
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USETW(req.wIndex, 0);
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USETW(req.wLength, 0);
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err = kue_do_request(dev, &req, NULL);
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KUE_UNLOCK(sc);
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return(err);
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}
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Static usbd_status
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kue_ctl(struct kue_softc *sc, int rw, u_int8_t breq, u_int16_t val,
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char *data, int len)
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{
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usbd_device_handle dev;
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usb_device_request_t req;
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usbd_status err;
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dev = sc->kue_udev;
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if (sc->kue_dying)
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return(USBD_NORMAL_COMPLETION);
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KUE_LOCK(sc);
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if (rw == KUE_CTL_WRITE)
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req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
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else
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req.bmRequestType = UT_READ_VENDOR_DEVICE;
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req.bRequest = breq;
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USETW(req.wValue, val);
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USETW(req.wIndex, 0);
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USETW(req.wLength, len);
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err = kue_do_request(dev, &req, data);
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KUE_UNLOCK(sc);
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return(err);
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}
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Static int
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kue_load_fw(struct kue_softc *sc)
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{
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usbd_status err;
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usb_device_descriptor_t *dd;
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int hwrev;
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dd = &sc->kue_udev->ddesc;
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hwrev = UGETW(dd->bcdDevice);
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/*
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* First, check if we even need to load the firmware.
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* If the device was still attached when the system was
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* rebooted, it may already have firmware loaded in it.
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* If this is the case, we don't need to do it again.
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* And in fact, if we try to load it again, we'll hang,
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* so we have to avoid this condition if we don't want
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* to look stupid.
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*
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* We can test this quickly by checking the bcdRevision
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* code. The NIC will return a different revision code if
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* it's probed while the firmware is still loaded and
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* running.
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*/
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if (hwrev == 0x0202)
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return(0);
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/* Load code segment */
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err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN,
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0, kue_code_seg, sizeof(kue_code_seg));
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if (err) {
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printf("kue%d: failed to load code segment: %s\n",
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sc->kue_unit, usbd_errstr(err));
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return(ENXIO);
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}
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/* Load fixup segment */
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err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN,
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0, kue_fix_seg, sizeof(kue_fix_seg));
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if (err) {
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printf("kue%d: failed to load fixup segment: %s\n",
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sc->kue_unit, usbd_errstr(err));
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return(ENXIO);
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}
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/* Send trigger command. */
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err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN,
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0, kue_trig_seg, sizeof(kue_trig_seg));
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if (err) {
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printf("kue%d: failed to load trigger segment: %s\n",
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sc->kue_unit, usbd_errstr(err));
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return(ENXIO);
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}
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return(0);
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}
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Static void
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kue_setmulti(struct kue_softc *sc)
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{
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struct ifnet *ifp;
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struct ifmultiaddr *ifma;
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int i = 0;
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ifp = &sc->arpcom.ac_if;
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if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
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sc->kue_rxfilt |= KUE_RXFILT_ALLMULTI;
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sc->kue_rxfilt &= ~KUE_RXFILT_MULTICAST;
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kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt);
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return;
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}
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sc->kue_rxfilt &= ~KUE_RXFILT_ALLMULTI;
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TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
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if (ifma->ifma_addr->sa_family != AF_LINK)
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continue;
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/*
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* If there are too many addresses for the
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* internal filter, switch over to allmulti mode.
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*/
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if (i == KUE_MCFILTCNT(sc))
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break;
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bcopy(LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
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KUE_MCFILT(sc, i), ETHER_ADDR_LEN);
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i++;
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}
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if (i == KUE_MCFILTCNT(sc))
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sc->kue_rxfilt |= KUE_RXFILT_ALLMULTI;
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else {
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sc->kue_rxfilt |= KUE_RXFILT_MULTICAST;
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kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MCAST_FILTERS,
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i, sc->kue_mcfilters, i * ETHER_ADDR_LEN);
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}
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kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt);
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return;
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}
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/*
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* Issue a SET_CONFIGURATION command to reset the MAC. This should be
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* done after the firmware is loaded into the adapter in order to
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* bring it into proper operation.
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*/
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Static void
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kue_reset(struct kue_softc *sc)
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{
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if (usbd_set_config_no(sc->kue_udev, KUE_CONFIG_NO, 0) ||
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usbd_device2interface_handle(sc->kue_udev, KUE_IFACE_IDX,
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&sc->kue_iface)) {
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printf("kue%d: getting interface handle failed\n",
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sc->kue_unit);
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}
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/* Wait a little while for the chip to get its brains in order. */
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DELAY(1000);
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return;
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}
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/*
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* Probe for a KLSI chip.
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*/
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USB_MATCH(kue)
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{
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USB_MATCH_START(kue, uaa);
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struct kue_type *t;
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if (!uaa->iface)
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return(UMATCH_NONE);
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t = kue_devs;
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while(t->kue_vid) {
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if (uaa->vendor == t->kue_vid &&
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uaa->product == t->kue_did) {
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return(UMATCH_VENDOR_PRODUCT);
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}
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t++;
|
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}
|
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|
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return(UMATCH_NONE);
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}
|
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|
|
/*
|
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* Attach the interface. Allocate softc structures, do
|
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* setup and ethernet/BPF attach.
|
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*/
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USB_ATTACH(kue)
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{
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USB_ATTACH_START(kue, sc, uaa);
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char devinfo[1024];
|
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struct ifnet *ifp;
|
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usbd_status err;
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usb_interface_descriptor_t *id;
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usb_endpoint_descriptor_t *ed;
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int i;
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bzero(sc, sizeof(struct kue_softc));
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sc->kue_iface = uaa->iface;
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sc->kue_udev = uaa->device;
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sc->kue_unit = device_get_unit(self);
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id = usbd_get_interface_descriptor(uaa->iface);
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usbd_devinfo(uaa->device, 0, devinfo);
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device_set_desc_copy(self, devinfo);
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printf("%s: %s\n", USBDEVNAME(self), devinfo);
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|
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/* Find endpoints. */
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for (i = 0; i < id->bNumEndpoints; i++) {
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ed = usbd_interface2endpoint_descriptor(uaa->iface, i);
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if (!ed) {
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printf("kue%d: couldn't get ep %d\n",
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sc->kue_unit, i);
|
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USB_ATTACH_ERROR_RETURN;
|
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}
|
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if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
|
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UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
|
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sc->kue_ed[KUE_ENDPT_RX] = ed->bEndpointAddress;
|
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} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
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UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
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sc->kue_ed[KUE_ENDPT_TX] = ed->bEndpointAddress;
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} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
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UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
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sc->kue_ed[KUE_ENDPT_INTR] = ed->bEndpointAddress;
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}
|
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}
|
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|
|
mtx_init(&sc->kue_mtx, device_get_nameunit(self), MTX_NETWORK_LOCK,
|
|
MTX_DEF | MTX_RECURSE);
|
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KUE_LOCK(sc);
|
|
|
|
/* Load the firmware into the NIC. */
|
|
if (kue_load_fw(sc)) {
|
|
KUE_UNLOCK(sc);
|
|
mtx_destroy(&sc->kue_mtx);
|
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USB_ATTACH_ERROR_RETURN;
|
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}
|
|
|
|
/* Reset the adapter. */
|
|
kue_reset(sc);
|
|
|
|
/* Read ethernet descriptor */
|
|
err = kue_ctl(sc, KUE_CTL_READ, KUE_CMD_GET_ETHER_DESCRIPTOR,
|
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0, (char *)&sc->kue_desc, sizeof(sc->kue_desc));
|
|
|
|
sc->kue_mcfilters = malloc(KUE_MCFILTCNT(sc) * ETHER_ADDR_LEN,
|
|
M_USBDEV, M_NOWAIT);
|
|
|
|
/*
|
|
* A KLSI chip was detected. Inform the world.
|
|
*/
|
|
printf("kue%d: Ethernet address: %6D\n", sc->kue_unit,
|
|
sc->kue_desc.kue_macaddr, ":");
|
|
|
|
bcopy(sc->kue_desc.kue_macaddr,
|
|
(char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
|
|
|
|
ifp = &sc->arpcom.ac_if;
|
|
ifp->if_softc = sc;
|
|
ifp->if_unit = sc->kue_unit;
|
|
ifp->if_name = "kue";
|
|
ifp->if_mtu = ETHERMTU;
|
|
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
|
|
ifp->if_ioctl = kue_ioctl;
|
|
ifp->if_output = ether_output;
|
|
ifp->if_start = kue_start;
|
|
ifp->if_watchdog = kue_watchdog;
|
|
ifp->if_init = kue_init;
|
|
ifp->if_baudrate = 10000000;
|
|
ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
|
|
|
|
kue_qdat.ifp = ifp;
|
|
kue_qdat.if_rxstart = kue_rxstart;
|
|
|
|
/*
|
|
* Call MI attach routine.
|
|
*/
|
|
ether_ifattach(ifp, ETHER_BPF_SUPPORTED);
|
|
usb_register_netisr();
|
|
sc->kue_dying = 0;
|
|
|
|
KUE_UNLOCK(sc);
|
|
|
|
USB_ATTACH_SUCCESS_RETURN;
|
|
}
|
|
|
|
Static int
|
|
kue_detach(device_ptr_t dev)
|
|
{
|
|
struct kue_softc *sc;
|
|
struct ifnet *ifp;
|
|
|
|
sc = device_get_softc(dev);
|
|
KUE_LOCK(sc);
|
|
ifp = &sc->arpcom.ac_if;
|
|
|
|
sc->kue_dying = 1;
|
|
|
|
if (ifp != NULL)
|
|
ether_ifdetach(ifp, ETHER_BPF_SUPPORTED);
|
|
|
|
if (sc->kue_ep[KUE_ENDPT_TX] != NULL)
|
|
usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_TX]);
|
|
if (sc->kue_ep[KUE_ENDPT_RX] != NULL)
|
|
usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_RX]);
|
|
if (sc->kue_ep[KUE_ENDPT_INTR] != NULL)
|
|
usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_INTR]);
|
|
|
|
if (sc->kue_mcfilters != NULL)
|
|
free(sc->kue_mcfilters, M_USBDEV);
|
|
|
|
KUE_UNLOCK(sc);
|
|
mtx_destroy(&sc->kue_mtx);
|
|
|
|
return(0);
|
|
}
|
|
|
|
/*
|
|
* Initialize an RX descriptor and attach an MBUF cluster.
|
|
*/
|
|
Static int
|
|
kue_newbuf(struct kue_softc *sc, struct kue_chain *c, struct mbuf *m)
|
|
{
|
|
struct mbuf *m_new = NULL;
|
|
|
|
if (m == NULL) {
|
|
MGETHDR(m_new, M_DONTWAIT, MT_DATA);
|
|
if (m_new == NULL) {
|
|
printf("kue%d: no memory for rx list "
|
|
"-- packet dropped!\n", sc->kue_unit);
|
|
return(ENOBUFS);
|
|
}
|
|
|
|
MCLGET(m_new, M_DONTWAIT);
|
|
if (!(m_new->m_flags & M_EXT)) {
|
|
printf("kue%d: no memory for rx list "
|
|
"-- packet dropped!\n", sc->kue_unit);
|
|
m_freem(m_new);
|
|
return(ENOBUFS);
|
|
}
|
|
m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
|
|
} else {
|
|
m_new = m;
|
|
m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
|
|
m_new->m_data = m_new->m_ext.ext_buf;
|
|
}
|
|
|
|
c->kue_mbuf = m_new;
|
|
|
|
return(0);
|
|
}
|
|
|
|
Static int
|
|
kue_rx_list_init(struct kue_softc *sc)
|
|
{
|
|
struct kue_cdata *cd;
|
|
struct kue_chain *c;
|
|
int i;
|
|
|
|
cd = &sc->kue_cdata;
|
|
for (i = 0; i < KUE_RX_LIST_CNT; i++) {
|
|
c = &cd->kue_rx_chain[i];
|
|
c->kue_sc = sc;
|
|
c->kue_idx = i;
|
|
if (kue_newbuf(sc, c, NULL) == ENOBUFS)
|
|
return(ENOBUFS);
|
|
if (c->kue_xfer == NULL) {
|
|
c->kue_xfer = usbd_alloc_xfer(sc->kue_udev);
|
|
if (c->kue_xfer == NULL)
|
|
return(ENOBUFS);
|
|
}
|
|
}
|
|
|
|
return(0);
|
|
}
|
|
|
|
Static int
|
|
kue_tx_list_init(struct kue_softc *sc)
|
|
{
|
|
struct kue_cdata *cd;
|
|
struct kue_chain *c;
|
|
int i;
|
|
|
|
cd = &sc->kue_cdata;
|
|
for (i = 0; i < KUE_TX_LIST_CNT; i++) {
|
|
c = &cd->kue_tx_chain[i];
|
|
c->kue_sc = sc;
|
|
c->kue_idx = i;
|
|
c->kue_mbuf = NULL;
|
|
if (c->kue_xfer == NULL) {
|
|
c->kue_xfer = usbd_alloc_xfer(sc->kue_udev);
|
|
if (c->kue_xfer == NULL)
|
|
return(ENOBUFS);
|
|
}
|
|
c->kue_buf = malloc(KUE_BUFSZ, M_USBDEV, M_NOWAIT);
|
|
if (c->kue_buf == NULL)
|
|
return(ENOBUFS);
|
|
}
|
|
|
|
return(0);
|
|
}
|
|
|
|
Static void
|
|
kue_rxstart(struct ifnet *ifp)
|
|
{
|
|
struct kue_softc *sc;
|
|
struct kue_chain *c;
|
|
|
|
sc = ifp->if_softc;
|
|
KUE_LOCK(sc);
|
|
c = &sc->kue_cdata.kue_rx_chain[sc->kue_cdata.kue_rx_prod];
|
|
|
|
if (kue_newbuf(sc, c, NULL) == ENOBUFS) {
|
|
ifp->if_ierrors++;
|
|
return;
|
|
}
|
|
|
|
/* Setup new transfer. */
|
|
usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX],
|
|
c, mtod(c->kue_mbuf, char *), KUE_BUFSZ, USBD_SHORT_XFER_OK,
|
|
USBD_NO_TIMEOUT, kue_rxeof);
|
|
usbd_transfer(c->kue_xfer);
|
|
|
|
KUE_UNLOCK(sc);
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* A frame has been uploaded: pass the resulting mbuf chain up to
|
|
* the higher level protocols.
|
|
*/
|
|
Static void kue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv,
|
|
usbd_status status)
|
|
{
|
|
struct kue_softc *sc;
|
|
struct kue_chain *c;
|
|
struct mbuf *m;
|
|
struct ifnet *ifp;
|
|
int total_len = 0;
|
|
u_int16_t len;
|
|
|
|
c = priv;
|
|
sc = c->kue_sc;
|
|
KUE_LOCK(sc);
|
|
ifp = &sc->arpcom.ac_if;
|
|
|
|
if (!(ifp->if_flags & IFF_RUNNING)) {
|
|
KUE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
if (status != USBD_NORMAL_COMPLETION) {
|
|
if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
|
|
KUE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
if (usbd_ratecheck(&sc->kue_rx_notice))
|
|
printf("kue%d: usb error on rx: %s\n", sc->kue_unit,
|
|
usbd_errstr(status));
|
|
if (status == USBD_STALLED)
|
|
usbd_clear_endpoint_stall(sc->kue_ep[KUE_ENDPT_RX]);
|
|
goto done;
|
|
}
|
|
|
|
usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
|
|
m = c->kue_mbuf;
|
|
if (total_len <= 1)
|
|
goto done;
|
|
|
|
len = *mtod(m, u_int16_t *);
|
|
m_adj(m, sizeof(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->m_pkthdr.rcvif = (struct ifnet *)&kue_qdat;
|
|
m->m_pkthdr.len = m->m_len = total_len;
|
|
|
|
/* Put the packet on the special USB input queue. */
|
|
usb_ether_input(m);
|
|
KUE_UNLOCK(sc);
|
|
|
|
return;
|
|
done:
|
|
|
|
/* Setup new transfer. */
|
|
usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX],
|
|
c, mtod(c->kue_mbuf, char *), KUE_BUFSZ, USBD_SHORT_XFER_OK,
|
|
USBD_NO_TIMEOUT, kue_rxeof);
|
|
usbd_transfer(c->kue_xfer);
|
|
KUE_UNLOCK(sc);
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* A frame was downloaded to the chip. It's safe for us to clean up
|
|
* the list buffers.
|
|
*/
|
|
|
|
Static void
|
|
kue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
|
|
{
|
|
struct kue_softc *sc;
|
|
struct kue_chain *c;
|
|
struct ifnet *ifp;
|
|
usbd_status err;
|
|
|
|
c = priv;
|
|
sc = c->kue_sc;
|
|
KUE_LOCK(sc);
|
|
|
|
ifp = &sc->arpcom.ac_if;
|
|
ifp->if_timer = 0;
|
|
ifp->if_flags &= ~IFF_OACTIVE;
|
|
|
|
if (status != USBD_NORMAL_COMPLETION) {
|
|
if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
|
|
KUE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
printf("kue%d: usb error on tx: %s\n", sc->kue_unit,
|
|
usbd_errstr(status));
|
|
if (status == USBD_STALLED)
|
|
usbd_clear_endpoint_stall(sc->kue_ep[KUE_ENDPT_TX]);
|
|
KUE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
usbd_get_xfer_status(c->kue_xfer, NULL, NULL, NULL, &err);
|
|
|
|
if (c->kue_mbuf != NULL) {
|
|
c->kue_mbuf->m_pkthdr.rcvif = ifp;
|
|
usb_tx_done(c->kue_mbuf);
|
|
c->kue_mbuf = NULL;
|
|
}
|
|
|
|
if (err)
|
|
ifp->if_oerrors++;
|
|
else
|
|
ifp->if_opackets++;
|
|
|
|
KUE_UNLOCK(sc);
|
|
|
|
return;
|
|
}
|
|
|
|
Static int
|
|
kue_encap(struct kue_softc *sc, struct mbuf *m, int idx)
|
|
{
|
|
int total_len;
|
|
struct kue_chain *c;
|
|
usbd_status err;
|
|
|
|
c = &sc->kue_cdata.kue_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->kue_buf + 2);
|
|
c->kue_mbuf = m;
|
|
|
|
total_len = m->m_pkthdr.len + 2;
|
|
total_len += 64 - (total_len % 64);
|
|
|
|
/* Frame length is specified in the first 2 bytes of the buffer. */
|
|
c->kue_buf[0] = (u_int8_t)m->m_pkthdr.len;
|
|
c->kue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8);
|
|
|
|
usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_TX],
|
|
c, c->kue_buf, total_len, 0, 10000, kue_txeof);
|
|
|
|
/* Transmit */
|
|
err = usbd_transfer(c->kue_xfer);
|
|
if (err != USBD_IN_PROGRESS) {
|
|
kue_stop(sc);
|
|
return(EIO);
|
|
}
|
|
|
|
sc->kue_cdata.kue_tx_cnt++;
|
|
|
|
return(0);
|
|
}
|
|
|
|
Static void
|
|
kue_start(struct ifnet *ifp)
|
|
{
|
|
struct kue_softc *sc;
|
|
struct mbuf *m_head = NULL;
|
|
|
|
sc = ifp->if_softc;
|
|
KUE_LOCK(sc);
|
|
|
|
if (ifp->if_flags & IFF_OACTIVE) {
|
|
KUE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
IF_DEQUEUE(&ifp->if_snd, m_head);
|
|
if (m_head == NULL) {
|
|
KUE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
if (kue_encap(sc, m_head, 0)) {
|
|
IF_PREPEND(&ifp->if_snd, m_head);
|
|
ifp->if_flags |= IFF_OACTIVE;
|
|
KUE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* If there's a BPF listener, bounce a copy of this frame
|
|
* to him.
|
|
*/
|
|
if (ifp->if_bpf)
|
|
bpf_mtap(ifp, m_head);
|
|
|
|
ifp->if_flags |= IFF_OACTIVE;
|
|
|
|
/*
|
|
* Set a timeout in case the chip goes out to lunch.
|
|
*/
|
|
ifp->if_timer = 5;
|
|
KUE_UNLOCK(sc);
|
|
|
|
return;
|
|
}
|
|
|
|
Static void
|
|
kue_init(void *xsc)
|
|
{
|
|
struct kue_softc *sc = xsc;
|
|
struct ifnet *ifp = &sc->arpcom.ac_if;
|
|
struct kue_chain *c;
|
|
usbd_status err;
|
|
int i;
|
|
|
|
KUE_LOCK(sc);
|
|
|
|
if (ifp->if_flags & IFF_RUNNING) {
|
|
KUE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
/* Set MAC address */
|
|
kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MAC,
|
|
0, sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
|
|
|
|
sc->kue_rxfilt = KUE_RXFILT_UNICAST|KUE_RXFILT_BROADCAST;
|
|
|
|
/* If we want promiscuous mode, set the allframes bit. */
|
|
if (ifp->if_flags & IFF_PROMISC)
|
|
sc->kue_rxfilt |= KUE_RXFILT_PROMISC;
|
|
|
|
kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt);
|
|
|
|
/* I'm not sure how to tune these. */
|
|
#ifdef notdef
|
|
/*
|
|
* Leave this one alone for now; setting it
|
|
* wrong causes lockups on some machines/controllers.
|
|
*/
|
|
kue_setword(sc, KUE_CMD_SET_SOFS, 1);
|
|
#endif
|
|
kue_setword(sc, KUE_CMD_SET_URB_SIZE, 64);
|
|
|
|
/* Init TX ring. */
|
|
if (kue_tx_list_init(sc) == ENOBUFS) {
|
|
printf("kue%d: tx list init failed\n", sc->kue_unit);
|
|
KUE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
/* Init RX ring. */
|
|
if (kue_rx_list_init(sc) == ENOBUFS) {
|
|
printf("kue%d: rx list init failed\n", sc->kue_unit);
|
|
KUE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
/* Load the multicast filter. */
|
|
kue_setmulti(sc);
|
|
|
|
/* Open RX and TX pipes. */
|
|
err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_RX],
|
|
USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_RX]);
|
|
if (err) {
|
|
printf("kue%d: open rx pipe failed: %s\n",
|
|
sc->kue_unit, usbd_errstr(err));
|
|
KUE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_TX],
|
|
USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_TX]);
|
|
if (err) {
|
|
printf("kue%d: open tx pipe failed: %s\n",
|
|
sc->kue_unit, usbd_errstr(err));
|
|
KUE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
/* Start up the receive pipe. */
|
|
for (i = 0; i < KUE_RX_LIST_CNT; i++) {
|
|
c = &sc->kue_cdata.kue_rx_chain[i];
|
|
usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX],
|
|
c, mtod(c->kue_mbuf, char *), KUE_BUFSZ,
|
|
USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, kue_rxeof);
|
|
usbd_transfer(c->kue_xfer);
|
|
}
|
|
|
|
ifp->if_flags |= IFF_RUNNING;
|
|
ifp->if_flags &= ~IFF_OACTIVE;
|
|
|
|
KUE_UNLOCK(sc);
|
|
|
|
return;
|
|
}
|
|
|
|
Static int
|
|
kue_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
|
|
{
|
|
struct kue_softc *sc = ifp->if_softc;
|
|
int error = 0;
|
|
|
|
KUE_LOCK(sc);
|
|
|
|
switch(command) {
|
|
case SIOCSIFADDR:
|
|
case SIOCGIFADDR:
|
|
case SIOCSIFMTU:
|
|
error = ether_ioctl(ifp, command, data);
|
|
break;
|
|
case SIOCSIFFLAGS:
|
|
if (ifp->if_flags & IFF_UP) {
|
|
if (ifp->if_flags & IFF_RUNNING &&
|
|
ifp->if_flags & IFF_PROMISC &&
|
|
!(sc->kue_if_flags & IFF_PROMISC)) {
|
|
sc->kue_rxfilt |= KUE_RXFILT_PROMISC;
|
|
kue_setword(sc, KUE_CMD_SET_PKT_FILTER,
|
|
sc->kue_rxfilt);
|
|
} else if (ifp->if_flags & IFF_RUNNING &&
|
|
!(ifp->if_flags & IFF_PROMISC) &&
|
|
sc->kue_if_flags & IFF_PROMISC) {
|
|
sc->kue_rxfilt &= ~KUE_RXFILT_PROMISC;
|
|
kue_setword(sc, KUE_CMD_SET_PKT_FILTER,
|
|
sc->kue_rxfilt);
|
|
} else if (!(ifp->if_flags & IFF_RUNNING))
|
|
kue_init(sc);
|
|
} else {
|
|
if (ifp->if_flags & IFF_RUNNING)
|
|
kue_stop(sc);
|
|
}
|
|
sc->kue_if_flags = ifp->if_flags;
|
|
error = 0;
|
|
break;
|
|
case SIOCADDMULTI:
|
|
case SIOCDELMULTI:
|
|
kue_setmulti(sc);
|
|
error = 0;
|
|
break;
|
|
default:
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
|
|
KUE_UNLOCK(sc);
|
|
|
|
return(error);
|
|
}
|
|
|
|
Static void
|
|
kue_watchdog(struct ifnet *ifp)
|
|
{
|
|
struct kue_softc *sc;
|
|
struct kue_chain *c;
|
|
usbd_status stat;
|
|
|
|
sc = ifp->if_softc;
|
|
KUE_LOCK(sc);
|
|
ifp->if_oerrors++;
|
|
printf("kue%d: watchdog timeout\n", sc->kue_unit);
|
|
|
|
c = &sc->kue_cdata.kue_tx_chain[0];
|
|
usbd_get_xfer_status(c->kue_xfer, NULL, NULL, NULL, &stat);
|
|
kue_txeof(c->kue_xfer, c, stat);
|
|
|
|
if (ifp->if_snd.ifq_head != NULL)
|
|
kue_start(ifp);
|
|
KUE_UNLOCK(sc);
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Stop the adapter and free any mbufs allocated to the
|
|
* RX and TX lists.
|
|
*/
|
|
Static void
|
|
kue_stop(struct kue_softc *sc)
|
|
{
|
|
usbd_status err;
|
|
struct ifnet *ifp;
|
|
int i;
|
|
|
|
KUE_LOCK(sc);
|
|
ifp = &sc->arpcom.ac_if;
|
|
ifp->if_timer = 0;
|
|
|
|
/* Stop transfers. */
|
|
if (sc->kue_ep[KUE_ENDPT_RX] != NULL) {
|
|
err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_RX]);
|
|
if (err) {
|
|
printf("kue%d: abort rx pipe failed: %s\n",
|
|
sc->kue_unit, usbd_errstr(err));
|
|
}
|
|
err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_RX]);
|
|
if (err) {
|
|
printf("kue%d: close rx pipe failed: %s\n",
|
|
sc->kue_unit, usbd_errstr(err));
|
|
}
|
|
sc->kue_ep[KUE_ENDPT_RX] = NULL;
|
|
}
|
|
|
|
if (sc->kue_ep[KUE_ENDPT_TX] != NULL) {
|
|
err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_TX]);
|
|
if (err) {
|
|
printf("kue%d: abort tx pipe failed: %s\n",
|
|
sc->kue_unit, usbd_errstr(err));
|
|
}
|
|
err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_TX]);
|
|
if (err) {
|
|
printf("kue%d: close tx pipe failed: %s\n",
|
|
sc->kue_unit, usbd_errstr(err));
|
|
}
|
|
sc->kue_ep[KUE_ENDPT_TX] = NULL;
|
|
}
|
|
|
|
if (sc->kue_ep[KUE_ENDPT_INTR] != NULL) {
|
|
err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_INTR]);
|
|
if (err) {
|
|
printf("kue%d: abort intr pipe failed: %s\n",
|
|
sc->kue_unit, usbd_errstr(err));
|
|
}
|
|
err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_INTR]);
|
|
if (err) {
|
|
printf("kue%d: close intr pipe failed: %s\n",
|
|
sc->kue_unit, usbd_errstr(err));
|
|
}
|
|
sc->kue_ep[KUE_ENDPT_INTR] = NULL;
|
|
}
|
|
|
|
/* Free RX resources. */
|
|
for (i = 0; i < KUE_RX_LIST_CNT; i++) {
|
|
if (sc->kue_cdata.kue_rx_chain[i].kue_buf != NULL) {
|
|
free(sc->kue_cdata.kue_rx_chain[i].kue_buf, M_USBDEV);
|
|
sc->kue_cdata.kue_rx_chain[i].kue_buf = NULL;
|
|
}
|
|
if (sc->kue_cdata.kue_rx_chain[i].kue_mbuf != NULL) {
|
|
m_freem(sc->kue_cdata.kue_rx_chain[i].kue_mbuf);
|
|
sc->kue_cdata.kue_rx_chain[i].kue_mbuf = NULL;
|
|
}
|
|
if (sc->kue_cdata.kue_rx_chain[i].kue_xfer != NULL) {
|
|
usbd_free_xfer(sc->kue_cdata.kue_rx_chain[i].kue_xfer);
|
|
sc->kue_cdata.kue_rx_chain[i].kue_xfer = NULL;
|
|
}
|
|
}
|
|
|
|
/* Free TX resources. */
|
|
for (i = 0; i < KUE_TX_LIST_CNT; i++) {
|
|
if (sc->kue_cdata.kue_tx_chain[i].kue_buf != NULL) {
|
|
free(sc->kue_cdata.kue_tx_chain[i].kue_buf, M_USBDEV);
|
|
sc->kue_cdata.kue_tx_chain[i].kue_buf = NULL;
|
|
}
|
|
if (sc->kue_cdata.kue_tx_chain[i].kue_mbuf != NULL) {
|
|
m_freem(sc->kue_cdata.kue_tx_chain[i].kue_mbuf);
|
|
sc->kue_cdata.kue_tx_chain[i].kue_mbuf = NULL;
|
|
}
|
|
if (sc->kue_cdata.kue_tx_chain[i].kue_xfer != NULL) {
|
|
usbd_free_xfer(sc->kue_cdata.kue_tx_chain[i].kue_xfer);
|
|
sc->kue_cdata.kue_tx_chain[i].kue_xfer = NULL;
|
|
}
|
|
}
|
|
|
|
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
|
|
KUE_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 void
|
|
kue_shutdown(device_ptr_t dev)
|
|
{
|
|
struct kue_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
kue_stop(sc);
|
|
|
|
return;
|
|
}
|