FreeBSD/Linux Kernel Cross Reference
sys/dev/netif/ndis/if_ndis_u4b.c

     /*-
      * Copyright (c) 2005
      *      Bill Paul <wpaul@windriver.com>.  All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Bill Paul.
     * 4. Neither the name of the author nor the names of any co-contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
     * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     * THE POSSIBILITY OF SUCH DAMAGE.
     *
     * $FreeBSD: src/sys/dev/if_ndis/if_ndis_usb.c,v 1.26 2012/11/17 01:51:54 svnexp Exp $
     */
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/sockio.h>
    #include <sys/module.h>
    #include <sys/malloc.h>
    #include <sys/kernel.h>
    #include <sys/socket.h>
    #include <sys/sysctl.h>
    
    #include <net/if.h>
    #include <net/if_arp.h>
    #include <net/ethernet.h>
    #include <net/if_dl.h>
    #include <net/if_media.h>
    
    #include <net/bpf.h>
    
    #include <sys/bus.h>
    #include <bus/u4b/usb.h>
    #include <bus/u4b/usbdi.h>
    
    #include <netproto/802_11/ieee80211_var.h>
    
    #include <emulation/ndis/pe_var.h>
    #include <emulation/ndis/cfg_var.h>
    #include <emulation/ndis/resource_var.h>
    #include <emulation/ndis/ntoskrnl_var.h>
    #include <emulation/ndis/ndis_var.h>
    #include <emulation/ndis/u4bd_var.h>
    #include <dev/netif/ndis/if_ndisvar.h>
    
    SYSCTL_NODE(_hw, OID_AUTO, ndisusb, CTLFLAG_RD, 0, "NDIS USB driver parameters");
    
    MODULE_DEPEND(ndis, usb, 1, 1, 1);
    
    static device_probe_t ndisusb_match;
    static device_attach_t ndisusb_attach;
    static device_detach_t ndisusb_detach;
    static bus_get_resource_list_t ndis_get_resource_list;
    
    extern int ndisdrv_modevent     (module_t, int, void *);
    extern int ndis_attach          (device_t);
    extern int ndis_shutdown        (device_t);
    extern int ndis_detach          (device_t);
    extern int ndis_suspend         (device_t);
    extern int ndis_resume          (device_t);
    
    extern unsigned char drv_data[];
    
    static device_method_t ndis_methods[] = {
            /* Device interface */
            DEVMETHOD(device_probe,         ndisusb_match),
            DEVMETHOD(device_attach,        ndisusb_attach),
            DEVMETHOD(device_detach,        ndisusb_detach),
            DEVMETHOD(device_shutdown,      ndis_shutdown),
    
            /* bus interface */
            DEVMETHOD(bus_get_resource_list, ndis_get_resource_list),
    
            DEVMETHOD_END
    };
    
    static driver_t ndis_driver = {
            "ndis",
            ndis_methods,
           sizeof(struct ndis_softc)
   };
   
   static devclass_t ndis_devclass;
   
   DRIVER_MODULE(if_ndis, uhub, ndis_driver, ndis_devclass, ndisdrv_modevent,
       NULL);
   
   static int
   ndisusb_devcompare(interface_type bustype, struct ndis_usb_type *t, device_t dev)
   {
           struct usb_attach_arg *uaa;
   
           if (bustype != PNPBus)
                   return (FALSE);
   
           uaa = device_get_ivars(dev);
   
           while (t->ndis_name != NULL) {
                   if ((uaa->info.idVendor == t->ndis_vid) &&
                       (uaa->info.idProduct == t->ndis_did)) {
                           device_set_desc(dev, t->ndis_name);
                           return (TRUE);
                   }
                   t++;
           }
   
           return (FALSE);
   }
   
   static int
   ndisusb_match(device_t self)
   {
           struct drvdb_ent *db;
           struct usb_attach_arg *uaa = device_get_ivars(self);
   
           if (uaa->usb_mode != USB_MODE_HOST)
                   return (ENXIO);
           if (uaa->info.bConfigIndex != NDISUSB_CONFIG_NO)
                   return (ENXIO);
           if (uaa->info.bIfaceIndex != NDISUSB_IFACE_INDEX)
                   return (ENXIO);
   
           if (windrv_lookup(0, "USB Bus") == NULL)
                   return (ENXIO);
   
           db = windrv_match((matchfuncptr)ndisusb_devcompare, self);
           if (db == NULL)
                   return (ENXIO);
           uaa->driver_ivar = db;
   
           return (0);
   }
   
   static int
   ndisusb_attach(device_t self)
   {
           const struct drvdb_ent  *db;
           struct ndisusb_softc *dummy = device_get_softc(self);
           struct usb_attach_arg *uaa = device_get_ivars(self);
           struct ndis_softc       *sc;
           struct ndis_usb_type    *t;
           driver_object           *drv;
           int                     devidx = 0;
   
           device_set_usb_desc(self);
           db = uaa->driver_ivar;
           sc = (struct ndis_softc *)dummy;
           sc->ndis_dev = self;
           lockinit(&sc->ndisusb_lock, "NDIS USB", 0, LK_CANRECURSE);
           sc->ndis_dobj = db->windrv_object;
           sc->ndis_regvals = db->windrv_regvals;
           sc->ndis_iftype = PNPBus;
           sc->ndisusb_dev = uaa->device;
   
           /* Create PDO for this device instance */
   
           drv = windrv_lookup(0, "USB Bus");
           windrv_create_pdo(drv, self);
   
           /* Figure out exactly which device we matched. */
   
           t = db->windrv_devlist;
   
           while (t->ndis_name != NULL) {
                   if ((uaa->info.idVendor == t->ndis_vid) &&
                       (uaa->info.idProduct == t->ndis_did)) {
                           sc->ndis_devidx = devidx;
                           break;
                   }
                   t++;
                   devidx++;
           }
   
           if (ndis_attach(self) != 0)
                   return (ENXIO);
   
           return (0);
   }
   
   static int
   ndisusb_detach(device_t self)
   {
           int i;
           struct ndis_softc       *sc = device_get_softc(self);
           struct ndisusb_ep       *ne;
   
           sc->ndisusb_status |= NDISUSB_STATUS_DETACH;
   
           ndis_pnpevent_nic(self, NDIS_PNP_EVENT_SURPRISE_REMOVED);
   
           if (sc->ndisusb_status & NDISUSB_STATUS_SETUP_EP) {
                   usbd_transfer_unsetup(sc->ndisusb_dread_ep.ne_xfer, 1);
                   usbd_transfer_unsetup(sc->ndisusb_dwrite_ep.ne_xfer, 1);
           }
           for (i = 0; i < NDISUSB_ENDPT_MAX; i++) {
                   ne = &sc->ndisusb_ep[i];
                   usbd_transfer_unsetup(ne->ne_xfer, 1);
           }
   
           (void)ndis_detach(self);
   
           lockuninit(&sc->ndisusb_lock);
           return (0);
   }
   
   static struct resource_list *
   ndis_get_resource_list(device_t dev, device_t child)
   {
           struct ndis_softc       *sc;
   
           sc = device_get_softc(dev);
           return (BUS_GET_RESOURCE_LIST(device_get_parent(sc->ndis_dev), dev));
   }

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