FreeBSD/Linux Kernel Cross Reference
sys/dev/ex/if_ex_pccard.c

     /*-
      * Copyright (c) 2000 Mitsuru IWASAKI
      * 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.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 THE AUTHOR OR CONTRIBUTORS 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: releng/5.1/sys/dev/ex/if_ex_pccard.c 112801 2003-03-29 15:38:53Z mdodd $
     */
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/kernel.h>
    #include <sys/socket.h>
    
    #include <sys/module.h>
    #include <sys/bus.h>
    
    #include <machine/bus.h>
    #include <machine/resource.h>
    #include <sys/rman.h>
    
    #include <net/if.h>
    #include <net/if_arp.h>
    #include <net/if_media.h> 
    
    
    #include <dev/ex/if_exreg.h>
    #include <dev/ex/if_exvar.h>
    
    #include <dev/pccard/pccardvar.h>
    
    /* Bus Front End Functions */
    static int      ex_pccard_probe         (device_t);
    static int      ex_pccard_attach        (device_t);
    
    static device_method_t ex_pccard_methods[] = {
            /* Device interface */
            DEVMETHOD(device_probe,         ex_pccard_probe),
            DEVMETHOD(device_attach,        ex_pccard_attach),
            DEVMETHOD(device_detach,        ex_detach),
    
            { 0, 0 }
    };
    
    static driver_t ex_pccard_driver = {
            "ex",
            ex_pccard_methods,
            sizeof(struct ex_softc),
    };
    
    DRIVER_MODULE(ex, pccard, ex_pccard_driver, ex_devclass, 0, 0);
    
    static int
    ex_pccard_probe(device_t dev)
    {
            u_int           iobase;
            u_int           irq;
    
            iobase = bus_get_resource_start(dev, SYS_RES_IOPORT, 0);
            if (!iobase) {
                    printf("ex: no iobase?\n");
                    return(ENXIO);
            }
    
            if (bootverbose)
                    printf("ex: ex_pccard_probe() found card at 0x%03x\n", iobase);
    
            irq = bus_get_resource_start(dev, SYS_RES_IRQ, 0);
    
            if (irq == 0) {
                    printf("ex: invalid IRQ.\n");
                    return(ENXIO);
            }
    
            return(0);
    }
    
    static int
    ex_pccard_attach(device_t dev)
    {
           struct ex_softc *       sc = device_get_softc(dev);
           int                     error = 0;
           int                     i;
           u_char                  sum;
           u_char                  ether_addr[ETHER_ADDR_LEN];
   
           sc->dev = dev;
           sc->ioport_rid = 0;
           sc->irq_rid = 0;
   
           if ((error = ex_alloc_resources(dev)) != 0) {
                   device_printf(dev, "ex_alloc_resources() failed!\n");
                   goto bad;
           }
   
           /*
            * Fill in several fields of the softc structure:
            *      - I/O base address.
            *      - Hardware Ethernet address.
            *      - IRQ number.
            */
           sc->iobase = rman_get_start(sc->ioport);
           sc->irq_no = rman_get_start(sc->irq);
   
           pccard_get_ether(dev, ether_addr);
           for (i = 0, sum = 0; i < ETHER_ADDR_LEN; i++)
                   sum |= ether_addr[i];
           if (sum)
                   bcopy(ether_addr, sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
   
           if ((error = ex_attach(dev)) != 0) {
                   device_printf(dev, "ex_attach() failed!\n");
                   goto bad;
           }
   
           error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET,
                                   ex_intr, (void *)sc, &sc->ih);
           if (error) {
                   device_printf(dev, "bus_setup_intr() failed!\n");
                   goto bad;
           }
   
           return(0);
   bad:
           ex_release_resources(dev);
           return (error);
   }

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