FreeBSD/Linux Kernel Cross Reference
sys/dev/wi/if_wi_macio.c

     /*-
      * Copyright (c) 2013   Justin Hibbits
      * All rights reserved.
      * Copyright (c) 1997, 1998, 1999
      *      Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Bill Paul.
     * 4. Neither the name of the author nor the names of any co-contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
     * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     * THE POSSIBILITY OF SUCH DAMAGE.
     */
    
    /*
     * Lucent WaveLAN/IEEE 802.11 MacIO attachment for FreeBSD.
     *
     * Based on the PCMCIA driver
     * Written by Bill Paul <wpaul@ctr.columbia.edu>
     * Electrical Engineering Department
     * Columbia University, New York City
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD: releng/11.0/sys/dev/wi/if_wi_macio.c 287197 2015-08-27 08:56:39Z glebius $");
    
    #include <sys/param.h>
    #include <sys/kernel.h>
    #include <sys/socket.h>
    #include <sys/systm.h>
    #include <sys/mbuf.h>
    #include <sys/module.h>
    #include <sys/bus.h>
    
    #include <machine/bus.h>
    #include <machine/resource.h>
    #include <sys/rman.h>
    
    #include <dev/ofw/ofw_bus.h>
    #include <dev/ofw/openfirm.h>
    #include <machine/ofw_machdep.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/if_types.h>
    
    #include <net80211/ieee80211_var.h>
    #include <net80211/ieee80211_radiotap.h>
    
    #include <dev/wi/if_wavelan_ieee.h>
    #include <dev/wi/if_wireg.h>
    #include <dev/wi/if_wivar.h>
    
    #include <powerpc/powermac/maciovar.h>
    
    static int wi_macio_probe(device_t);
    static int wi_macio_attach(device_t);
    
    static device_method_t wi_macio_methods[] = {
            /* Device interface */
            DEVMETHOD(device_probe,         wi_macio_probe),
            DEVMETHOD(device_attach,        wi_macio_attach),
            DEVMETHOD(device_detach,        wi_detach),
            DEVMETHOD(device_shutdown,      wi_shutdown),
    
            { 0, 0 }
    };
    
    static driver_t wi_macio_driver = {
            "wi",
            wi_macio_methods,
            sizeof(struct wi_softc)
    };
    
    DRIVER_MODULE(wi, macio, wi_macio_driver, wi_devclass, 0, 0);
    MODULE_DEPEND(wi, wlan, 1, 1, 1);
   
   static int
   wi_macio_probe(device_t dev)
   {
           const char *name, *compat;
   
           /* Make sure we're a network driver */
           name = ofw_bus_get_name(dev);
           if (name == NULL)
                   return (ENXIO);
   
           if (strcmp(name, "radio") != 0) {
                   return ENXIO;
           }
           compat = ofw_bus_get_compat(dev);
           if (strcmp(compat, "wireless") != 0) {
                   return ENXIO;
           }
   
           device_set_desc(dev, "Apple Airport");
           return 0;
   }
   
   static int
   wi_macio_attach(device_t dev)
   {
           struct wi_softc *sc;
           int error;
   
           sc = device_get_softc(dev);
           sc->wi_gone = 0;
           sc->wi_bus_type = 0;
   
           error = wi_alloc(dev, 0);
           if (error == 0) {
                   macio_enable_wireless(device_get_parent(dev), 1);
                   /* Make sure interrupts are disabled. */
                   CSR_WRITE_2(sc, WI_INT_EN, 0);
                   CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
   
                   error = wi_attach(dev);
                   if (error != 0)
                           wi_free(dev);
           }
           return error;
   }

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