8a9cf808e6
location.
785 lines
20 KiB
C
785 lines
20 KiB
C
/* $NetBSD: if_cdce.c,v 1.4 2004/10/24 12:50:54 augustss Exp $ */
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/*
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* Copyright (c) 1997, 1998, 1999, 2000-2003 Bill Paul <wpaul@windriver.com>
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* Copyright (c) 2003-2005 Craig Boston
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* Copyright (c) 2004 Daniel Hartmeier
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* 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, THE VOICES IN HIS HEAD OR
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* THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* USB Communication Device Class (Ethernet Networking Control Model)
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* http://www.usb.org/developers/devclass_docs/usbcdc11.pdf
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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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/module.h>
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#include <sys/socket.h>
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#include <sys/endian.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/bpf.h>
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#include <sys/bus.h>
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#include <machine/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/usb_ethersubr.h>
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#include <dev/usb/usbcdc.h>
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#include "usbdevs.h"
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#include <dev/usb/if_cdcereg.h>
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Static device_shutdown_t cdce_shutdown;
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USB_DECLARE_DRIVER_INIT(cdce,
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DEVMETHOD(device_probe, cdce_match),
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DEVMETHOD(device_attach, cdce_attach),
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DEVMETHOD(device_detach, cdce_detach),
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DEVMETHOD(device_shutdown, cdce_shutdown)
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);
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DRIVER_MODULE(cdce, uhub, cdce_driver, cdce_devclass, usbd_driver_load, 0);
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MODULE_VERSION(cdce, 0);
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Static int cdce_tx_list_init(struct cdce_softc *);
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Static int cdce_rx_list_init(struct cdce_softc *);
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Static int cdce_encap(struct cdce_softc *, struct mbuf *, int);
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Static void cdce_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
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Static void cdce_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
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Static void cdce_start(struct ifnet *);
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Static int cdce_ioctl(struct ifnet *, u_long, caddr_t);
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Static void cdce_init(void *);
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Static void cdce_reset(struct cdce_softc *);
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Static void cdce_stop(struct cdce_softc *);
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Static void cdce_rxstart(struct ifnet *);
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Static const struct cdce_type cdce_devs[] = {
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{{ USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2501 }, CDCE_NO_UNION },
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{{ USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SL5500 }, CDCE_ZAURUS },
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{{ USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SLA300 }, CDCE_ZAURUS | CDCE_NO_UNION },
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{{ USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SL5600 }, CDCE_ZAURUS | CDCE_NO_UNION },
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{{ USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SLC700 }, CDCE_ZAURUS | CDCE_NO_UNION },
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{{ USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SLC750 }, CDCE_ZAURUS | CDCE_NO_UNION },
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{{ USB_VENDOR_GMATE, USB_PRODUCT_GMATE_YP3X00 }, CDCE_NO_UNION },
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};
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#define cdce_lookup(v, p) ((const struct cdce_type *)usb_lookup(cdce_devs, v, p))
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USB_MATCH(cdce)
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{
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USB_MATCH_START(cdce, uaa);
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usb_interface_descriptor_t *id;
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if (uaa->iface == NULL)
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return (UMATCH_NONE);
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id = usbd_get_interface_descriptor(uaa->iface);
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if (id == NULL)
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return (UMATCH_NONE);
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if (cdce_lookup(uaa->vendor, uaa->product) != NULL)
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return (UMATCH_VENDOR_PRODUCT);
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if (id->bInterfaceClass == UICLASS_CDC && id->bInterfaceSubClass ==
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UISUBCLASS_ETHERNET_NETWORKING_CONTROL_MODEL)
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return (UMATCH_IFACECLASS_GENERIC);
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return (UMATCH_NONE);
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}
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USB_ATTACH(cdce)
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{
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USB_ATTACH_START(cdce, sc, uaa);
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struct ifnet *ifp;
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usbd_device_handle dev = uaa->device;
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const struct cdce_type *t;
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usb_interface_descriptor_t *id;
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usb_endpoint_descriptor_t *ed;
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const usb_cdc_union_descriptor_t *ud;
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usb_config_descriptor_t *cd;
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int data_ifcno;
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int i, j, numalts;
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u_char eaddr[ETHER_ADDR_LEN];
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const usb_cdc_ethernet_descriptor_t *ue;
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char eaddr_str[USB_MAX_STRING_LEN];
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bzero(sc, sizeof(struct cdce_softc));
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sc->cdce_dev = self;
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usbd_devinfo(dev, 0, sc->devinfo);
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device_set_desc_copy(self, sc->devinfo);
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printf("%s: %s\n", USBDEVNAME(sc->cdce_dev), sc->devinfo);
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sc->cdce_udev = uaa->device;
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sc->cdce_unit = device_get_unit(self);
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t = cdce_lookup(uaa->vendor, uaa->product);
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if (t)
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sc->cdce_flags = t->cdce_flags;
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if (sc->cdce_flags & CDCE_NO_UNION)
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sc->cdce_data_iface = uaa->iface;
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else {
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ud = (const usb_cdc_union_descriptor_t *)usb_find_desc(sc->cdce_udev,
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UDESC_CS_INTERFACE, UDESCSUB_CDC_UNION);
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if (ud == NULL) {
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printf("%s: no union descriptor\n",
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USBDEVNAME(sc->cdce_dev));
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USB_ATTACH_ERROR_RETURN;
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}
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data_ifcno = ud->bSlaveInterface[0];
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for (i = 0; i < uaa->nifaces; i++) {
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if (uaa->ifaces[i] != NULL) {
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id = usbd_get_interface_descriptor(
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uaa->ifaces[i]);
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if (id != NULL && id->bInterfaceNumber ==
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data_ifcno) {
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sc->cdce_data_iface = uaa->ifaces[i];
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uaa->ifaces[i] = NULL;
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}
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}
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}
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}
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if (sc->cdce_data_iface == NULL) {
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printf("%s: no data interface\n", USBDEVNAME(sc->cdce_dev));
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USB_ATTACH_ERROR_RETURN;
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}
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/*
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* <quote>
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* The Data Class interface of a networking device shall have a minimum
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* of two interface settings. The first setting (the default interface
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* setting) includes no endpoints and therefore no networking traffic is
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* exchanged whenever the default interface setting is selected. One or
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* more additional interface settings are used for normal operation, and
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* therefore each includes a pair of endpoints (one IN, and one OUT) to
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* exchange network traffic. Select an alternate interface setting to
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* initialize the network aspects of the device and to enable the
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* exchange of network traffic.
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* </quote>
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*
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* Some devices, most notably cable modems, include interface settings
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* that have no IN or OUT endpoint, therefore loop through the list of all
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* available interface settings looking for one with both IN and OUT
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* endpoints.
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*/
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id = usbd_get_interface_descriptor(sc->cdce_data_iface);
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cd = usbd_get_config_descriptor(sc->cdce_udev);
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numalts = usbd_get_no_alts(cd, id->bInterfaceNumber);
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for (j = 0; j < numalts; j++) {
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if (usbd_set_interface(sc->cdce_data_iface, j)) {
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printf("%s: setting alternate interface failed\n",
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USBDEVNAME(sc->cdce_dev));
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USB_ATTACH_ERROR_RETURN;
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}
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/* Find endpoints. */
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id = usbd_get_interface_descriptor(sc->cdce_data_iface);
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sc->cdce_bulkin_no = sc->cdce_bulkout_no = -1;
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for (i = 0; i < id->bNumEndpoints; i++) {
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ed = usbd_interface2endpoint_descriptor(sc->cdce_data_iface, i);
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if (!ed) {
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printf("%s: could not read endpoint descriptor\n",
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USBDEVNAME(sc->cdce_dev));
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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->cdce_bulkin_no = 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->cdce_bulkout_no = 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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/* XXX: CDC spec defines an interrupt pipe, but it is not
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* needed for simple host-to-host applications. */
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} else {
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printf("%s: unexpected endpoint\n",
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USBDEVNAME(sc->cdce_dev));
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}
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}
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/* If we found something, try and use it... */
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if ((sc->cdce_bulkin_no != -1) && (sc->cdce_bulkout_no != -1))
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break;
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}
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if (sc->cdce_bulkin_no == -1) {
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printf("%s: could not find data bulk in\n",
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USBDEVNAME(sc->cdce_dev));
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USB_ATTACH_ERROR_RETURN;
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}
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if (sc->cdce_bulkout_no == -1 ) {
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printf("%s: could not find data bulk out\n",
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USBDEVNAME(sc->cdce_dev));
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USB_ATTACH_ERROR_RETURN;
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}
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mtx_init(&sc->cdce_mtx, USBDEVNAME(sc->cdce_dev), MTX_NETWORK_LOCK,
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MTX_DEF | MTX_RECURSE);
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CDCE_LOCK(sc);
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ue = (const usb_cdc_ethernet_descriptor_t *)usb_find_desc(dev,
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UDESC_INTERFACE, UDESCSUB_CDC_ENF);
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if (!ue || usbd_get_string(dev, ue->iMacAddress, eaddr_str)) {
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/* Fake MAC address */
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printf("%s: faking MAC address\n", USBDEVNAME(sc->cdce_dev));
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eaddr[0]= 0x2a;
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memcpy(&eaddr[1], &ticks, sizeof(u_int32_t));
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eaddr[5] = (u_int8_t)(sc->cdce_unit);
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} else {
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int i;
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memset(eaddr, 0, ETHER_ADDR_LEN);
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for (i = 0; i < ETHER_ADDR_LEN * 2; i++) {
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int c = eaddr_str[i];
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if ('0' <= c && c <= '9')
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c -= '0';
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else
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c -= 'A' - 10;
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c &= 0xf;
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if (c % 2 == 0)
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c <<= 4;
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eaddr[i / 2] |= c;
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}
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}
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bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
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ifp = GET_IFP(sc);
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ifp->if_softc = sc;
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if_initname(ifp, "cdce", sc->cdce_unit);
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ifp->if_mtu = ETHERMTU;
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ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST |
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IFF_NEEDSGIANT;
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ifp->if_ioctl = cdce_ioctl;
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ifp->if_output = ether_output;
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ifp->if_start = cdce_start;
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ifp->if_init = cdce_init;
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ifp->if_baudrate = 11000000;
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ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
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sc->q.ifp = ifp;
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sc->q.if_rxstart = cdce_rxstart;
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ether_ifattach(ifp, eaddr);
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usb_register_netisr();
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CDCE_UNLOCK(sc);
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usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->cdce_udev,
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USBDEV(sc->cdce_dev));
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USB_ATTACH_SUCCESS_RETURN;
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}
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USB_DETACH(cdce)
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{
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USB_DETACH_START(cdce, sc);
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struct ifnet *ifp;
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CDCE_LOCK(sc);
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sc->cdce_dying = 1;
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ifp = GET_IFP(sc);
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if (ifp->if_flags & IFF_RUNNING)
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cdce_shutdown(sc->cdce_dev);
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ether_ifdetach(ifp);
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CDCE_UNLOCK(sc);
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mtx_destroy(&sc->cdce_mtx);
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return (0);
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}
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Static void
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cdce_start(struct ifnet *ifp)
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{
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struct cdce_softc *sc;
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struct mbuf *m_head = NULL;
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sc = ifp->if_softc;
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CDCE_LOCK(sc);
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if (sc->cdce_dying ||
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ifp->if_flags & IFF_OACTIVE ||
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!(ifp->if_flags & IFF_RUNNING)) {
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CDCE_UNLOCK(sc);
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return;
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}
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IF_DEQUEUE(&ifp->if_snd, m_head);
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if (m_head == NULL) {
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CDCE_UNLOCK(sc);
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return;
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}
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if (cdce_encap(sc, m_head, 0)) {
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IF_PREPEND(&ifp->if_snd, m_head);
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ifp->if_flags |= IFF_OACTIVE;
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CDCE_UNLOCK(sc);
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return;
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}
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BPF_MTAP(ifp, m_head);
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ifp->if_flags |= IFF_OACTIVE;
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CDCE_UNLOCK(sc);
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return;
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}
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Static int
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cdce_encap(struct cdce_softc *sc, struct mbuf *m, int idx)
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{
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struct cdce_chain *c;
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usbd_status err;
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int extra = 0;
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c = &sc->cdce_cdata.cdce_tx_chain[idx];
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m_copydata(m, 0, m->m_pkthdr.len, c->cdce_buf);
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if (sc->cdce_flags & CDCE_ZAURUS) {
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/* Zaurus wants a 32-bit CRC appended to every frame */
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u_int32_t crc;
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crc = htole32(crc32(c->cdce_buf, m->m_pkthdr.len));
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bcopy(&crc, c->cdce_buf + m->m_pkthdr.len, 4);
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extra = 4;
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}
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c->cdce_mbuf = m;
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usbd_setup_xfer(c->cdce_xfer, sc->cdce_bulkout_pipe, c, c->cdce_buf,
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m->m_pkthdr.len + extra, 0, 10000, cdce_txeof);
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err = usbd_transfer(c->cdce_xfer);
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if (err != USBD_IN_PROGRESS) {
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cdce_stop(sc);
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return (EIO);
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}
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sc->cdce_cdata.cdce_tx_cnt++;
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return (0);
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}
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Static void
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cdce_stop(struct cdce_softc *sc)
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{
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usbd_status err;
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struct ifnet *ifp;
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int i;
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CDCE_LOCK(sc);
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cdce_reset(sc);
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ifp = GET_IFP(sc);
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ifp->if_timer = 0;
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if (sc->cdce_bulkin_pipe != NULL) {
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err = usbd_abort_pipe(sc->cdce_bulkin_pipe);
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if (err)
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printf("%s: abort rx pipe failed: %s\n",
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USBDEVNAME(sc->cdce_dev), usbd_errstr(err));
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err = usbd_close_pipe(sc->cdce_bulkin_pipe);
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if (err)
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printf("%s: close rx pipe failed: %s\n",
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USBDEVNAME(sc->cdce_dev), usbd_errstr(err));
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sc->cdce_bulkin_pipe = NULL;
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}
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if (sc->cdce_bulkout_pipe != NULL) {
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err = usbd_abort_pipe(sc->cdce_bulkout_pipe);
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if (err)
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printf("%s: abort tx pipe failed: %s\n",
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USBDEVNAME(sc->cdce_dev), usbd_errstr(err));
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err = usbd_close_pipe(sc->cdce_bulkout_pipe);
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if (err)
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printf("%s: close tx pipe failed: %s\n",
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USBDEVNAME(sc->cdce_dev), usbd_errstr(err));
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sc->cdce_bulkout_pipe = NULL;
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}
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for (i = 0; i < CDCE_RX_LIST_CNT; i++) {
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if (sc->cdce_cdata.cdce_rx_chain[i].cdce_mbuf != NULL) {
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m_freem(sc->cdce_cdata.cdce_rx_chain[i].cdce_mbuf);
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sc->cdce_cdata.cdce_rx_chain[i].cdce_mbuf = NULL;
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}
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if (sc->cdce_cdata.cdce_rx_chain[i].cdce_xfer != NULL) {
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usbd_free_xfer(sc->cdce_cdata.cdce_rx_chain[i].cdce_xfer);
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sc->cdce_cdata.cdce_rx_chain[i].cdce_xfer = NULL;
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}
|
|
}
|
|
|
|
for (i = 0; i < CDCE_TX_LIST_CNT; i++) {
|
|
if (sc->cdce_cdata.cdce_tx_chain[i].cdce_mbuf != NULL) {
|
|
m_freem(sc->cdce_cdata.cdce_tx_chain[i].cdce_mbuf);
|
|
sc->cdce_cdata.cdce_tx_chain[i].cdce_mbuf = NULL;
|
|
}
|
|
if (sc->cdce_cdata.cdce_tx_chain[i].cdce_xfer != NULL) {
|
|
usbd_free_xfer(sc->cdce_cdata.cdce_tx_chain[i].cdce_xfer);
|
|
sc->cdce_cdata.cdce_tx_chain[i].cdce_xfer = NULL;
|
|
}
|
|
}
|
|
|
|
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
|
|
CDCE_UNLOCK(sc);
|
|
|
|
return;
|
|
}
|
|
|
|
Static int
|
|
cdce_shutdown(device_ptr_t dev)
|
|
{
|
|
struct cdce_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
cdce_stop(sc);
|
|
|
|
return (0);
|
|
}
|
|
|
|
Static int
|
|
cdce_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
|
|
{
|
|
struct cdce_softc *sc = ifp->if_softc;
|
|
int error = 0;
|
|
|
|
if (sc->cdce_dying)
|
|
return (ENXIO);
|
|
|
|
switch(command) {
|
|
case SIOCSIFFLAGS:
|
|
if (ifp->if_flags & IFF_UP) {
|
|
if (!(ifp->if_flags & IFF_RUNNING))
|
|
cdce_init(sc);
|
|
} else {
|
|
if (ifp->if_flags & IFF_RUNNING)
|
|
cdce_stop(sc);
|
|
}
|
|
error = 0;
|
|
break;
|
|
|
|
default:
|
|
error = ether_ioctl(ifp, command, data);
|
|
break;
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
Static void
|
|
cdce_reset(struct cdce_softc *sc)
|
|
{
|
|
/* XXX Maybe reset the bulk pipes here? */
|
|
return;
|
|
}
|
|
|
|
Static void
|
|
cdce_init(void *xsc)
|
|
{
|
|
struct cdce_softc *sc = xsc;
|
|
struct ifnet *ifp = GET_IFP(sc);
|
|
struct cdce_chain *c;
|
|
usbd_status err;
|
|
int i;
|
|
|
|
if (ifp->if_flags & IFF_RUNNING)
|
|
return;
|
|
|
|
CDCE_LOCK(sc);
|
|
cdce_reset(sc);
|
|
|
|
if (cdce_tx_list_init(sc) == ENOBUFS) {
|
|
printf("%s: tx list init failed\n", USBDEVNAME(sc->cdce_dev));
|
|
CDCE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
if (cdce_rx_list_init(sc) == ENOBUFS) {
|
|
printf("%s: rx list init failed\n", USBDEVNAME(sc->cdce_dev));
|
|
CDCE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
/* Maybe set multicast / broadcast here??? */
|
|
|
|
err = usbd_open_pipe(sc->cdce_data_iface, sc->cdce_bulkin_no,
|
|
USBD_EXCLUSIVE_USE, &sc->cdce_bulkin_pipe);
|
|
if (err) {
|
|
printf("%s: open rx pipe failed: %s\n", USBDEVNAME(sc->cdce_dev),
|
|
usbd_errstr(err));
|
|
CDCE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
err = usbd_open_pipe(sc->cdce_data_iface, sc->cdce_bulkout_no,
|
|
USBD_EXCLUSIVE_USE, &sc->cdce_bulkout_pipe);
|
|
if (err) {
|
|
printf("%s: open tx pipe failed: %s\n", USBDEVNAME(sc->cdce_dev),
|
|
usbd_errstr(err));
|
|
CDCE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < CDCE_RX_LIST_CNT; i++) {
|
|
c = &sc->cdce_cdata.cdce_rx_chain[i];
|
|
usbd_setup_xfer(c->cdce_xfer, sc->cdce_bulkin_pipe, c,
|
|
mtod(c->cdce_mbuf, char *), CDCE_BUFSZ, USBD_SHORT_XFER_OK,
|
|
USBD_NO_TIMEOUT, cdce_rxeof);
|
|
usbd_transfer(c->cdce_xfer);
|
|
}
|
|
|
|
ifp->if_flags |= IFF_RUNNING;
|
|
ifp->if_flags &= ~IFF_OACTIVE;
|
|
|
|
CDCE_UNLOCK(sc);
|
|
|
|
return;
|
|
}
|
|
|
|
Static int
|
|
cdce_rx_list_init(struct cdce_softc *sc)
|
|
{
|
|
struct cdce_cdata *cd;
|
|
struct cdce_chain *c;
|
|
int i;
|
|
|
|
cd = &sc->cdce_cdata;
|
|
for (i = 0; i < CDCE_RX_LIST_CNT; i++) {
|
|
c = &cd->cdce_rx_chain[i];
|
|
c->cdce_sc = sc;
|
|
c->cdce_idx = i;
|
|
c->cdce_mbuf = usb_ether_newbuf(USBDEVNAME(sc->cdce_dev));
|
|
if (c->cdce_mbuf == NULL)
|
|
return (ENOBUFS);
|
|
if (c->cdce_xfer == NULL) {
|
|
c->cdce_xfer = usbd_alloc_xfer(sc->cdce_udev);
|
|
if (c->cdce_xfer == NULL)
|
|
return (ENOBUFS);
|
|
c->cdce_buf = usbd_alloc_buffer(c->cdce_xfer, CDCE_BUFSZ);
|
|
if (c->cdce_buf == NULL)
|
|
return (ENOBUFS);
|
|
}
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
Static int
|
|
cdce_tx_list_init(struct cdce_softc *sc)
|
|
{
|
|
struct cdce_cdata *cd;
|
|
struct cdce_chain *c;
|
|
int i;
|
|
|
|
cd = &sc->cdce_cdata;
|
|
for (i = 0; i < CDCE_TX_LIST_CNT; i++) {
|
|
c = &cd->cdce_tx_chain[i];
|
|
c->cdce_sc = sc;
|
|
c->cdce_idx = i;
|
|
c->cdce_mbuf = NULL;
|
|
if (c->cdce_xfer == NULL) {
|
|
c->cdce_xfer = usbd_alloc_xfer(sc->cdce_udev);
|
|
if (c->cdce_xfer == NULL)
|
|
return (ENOBUFS);
|
|
c->cdce_buf = usbd_alloc_buffer(c->cdce_xfer, CDCE_BUFSZ);
|
|
if (c->cdce_buf == NULL)
|
|
return (ENOBUFS);
|
|
}
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
Static void
|
|
cdce_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
|
|
{
|
|
struct cdce_chain *c = priv;
|
|
struct cdce_softc *sc = c->cdce_sc;
|
|
struct ifnet *ifp;
|
|
struct mbuf *m;
|
|
int total_len = 0;
|
|
|
|
CDCE_LOCK(sc);
|
|
ifp = GET_IFP(sc);
|
|
|
|
if (sc->cdce_dying || !(ifp->if_flags & IFF_RUNNING)) {
|
|
CDCE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
if (status != USBD_NORMAL_COMPLETION) {
|
|
if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
|
|
CDCE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
if (sc->cdce_rxeof_errors == 0)
|
|
printf("%s: usb error on rx: %s\n",
|
|
USBDEVNAME(sc->cdce_dev), usbd_errstr(status));
|
|
if (status == USBD_STALLED)
|
|
usbd_clear_endpoint_stall(sc->cdce_bulkin_pipe);
|
|
DELAY(sc->cdce_rxeof_errors * 10000);
|
|
sc->cdce_rxeof_errors++;
|
|
goto done;
|
|
}
|
|
|
|
sc->cdce_rxeof_errors = 0;
|
|
|
|
usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
|
|
|
|
if (sc->cdce_flags & CDCE_ZAURUS)
|
|
total_len -= 4; /* Strip off CRC added by Zaurus */
|
|
|
|
m = c->cdce_mbuf;
|
|
|
|
if (total_len < sizeof(struct ether_header)) {
|
|
ifp->if_ierrors++;
|
|
goto done;
|
|
}
|
|
|
|
ifp->if_ipackets++;
|
|
m->m_pkthdr.rcvif = (struct ifnet *)&sc->q;
|
|
m->m_pkthdr.len = m->m_len = total_len;
|
|
|
|
/* Put the packet on the special USB input queue. */
|
|
usb_ether_input(m);
|
|
CDCE_UNLOCK(sc);
|
|
|
|
return;
|
|
|
|
done:
|
|
/* Setup new transfer. */
|
|
usbd_setup_xfer(c->cdce_xfer, sc->cdce_bulkin_pipe, c,
|
|
mtod(c->cdce_mbuf, char *),
|
|
CDCE_BUFSZ, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT,
|
|
cdce_rxeof);
|
|
usbd_transfer(c->cdce_xfer);
|
|
CDCE_UNLOCK(sc);
|
|
|
|
return;
|
|
}
|
|
|
|
Static void
|
|
cdce_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
|
|
{
|
|
struct cdce_chain *c = priv;
|
|
struct cdce_softc *sc = c->cdce_sc;
|
|
struct ifnet *ifp;
|
|
usbd_status err;
|
|
|
|
CDCE_LOCK(sc);
|
|
ifp = GET_IFP(sc);
|
|
|
|
if (sc->cdce_dying ||
|
|
!(ifp->if_flags & IFF_RUNNING)) {
|
|
CDCE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
if (status != USBD_NORMAL_COMPLETION) {
|
|
if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
|
|
CDCE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
ifp->if_oerrors++;
|
|
printf("%s: usb error on tx: %s\n", USBDEVNAME(sc->cdce_dev),
|
|
usbd_errstr(status));
|
|
if (status == USBD_STALLED)
|
|
usbd_clear_endpoint_stall(sc->cdce_bulkout_pipe);
|
|
CDCE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
ifp->if_flags &= ~IFF_OACTIVE;
|
|
usbd_get_xfer_status(c->cdce_xfer, NULL, NULL, NULL, &err);
|
|
|
|
if (c->cdce_mbuf != NULL) {
|
|
c->cdce_mbuf->m_pkthdr.rcvif = ifp;
|
|
usb_tx_done(c->cdce_mbuf);
|
|
c->cdce_mbuf = NULL;
|
|
}
|
|
|
|
if (err)
|
|
ifp->if_oerrors++;
|
|
else
|
|
ifp->if_opackets++;
|
|
|
|
CDCE_UNLOCK(sc);
|
|
|
|
return;
|
|
}
|
|
|
|
Static void
|
|
cdce_rxstart(struct ifnet *ifp)
|
|
{
|
|
struct cdce_softc *sc;
|
|
struct cdce_chain *c;
|
|
|
|
sc = ifp->if_softc;
|
|
CDCE_LOCK(sc);
|
|
|
|
if (sc->cdce_dying || !(ifp->if_flags & IFF_RUNNING)) {
|
|
CDCE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
c = &sc->cdce_cdata.cdce_rx_chain[sc->cdce_cdata.cdce_rx_prod];
|
|
|
|
c->cdce_mbuf = usb_ether_newbuf(USBDEVNAME(sc->cdce_dev));
|
|
if (c->cdce_mbuf == NULL) {
|
|
ifp->if_ierrors++;
|
|
CDCE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
usbd_setup_xfer(c->cdce_xfer, sc->cdce_bulkin_pipe, c,
|
|
mtod(c->cdce_mbuf, char *), CDCE_BUFSZ, USBD_SHORT_XFER_OK,
|
|
USBD_NO_TIMEOUT, cdce_rxeof);
|
|
usbd_transfer(c->cdce_xfer);
|
|
|
|
CDCE_UNLOCK(sc);
|
|
return;
|
|
}
|