FreeBSD/Linux Kernel Cross Reference
sys/dev/sbni/if_sbni_isa.c

     /*-
      * Copyright (c) 1997-2001 Granch, Ltd. All rights reserved.
      * Author: Denis I.Timofeev <timofeev@granch.ru>
      *
      * Redistributon 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 unmodified, 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 NEIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD$");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/socket.h>
    
    #include <sys/bus.h>
    #include <sys/kernel.h>
    #include <sys/module.h>
    #include <machine/bus.h>
    #include <machine/resource.h>
    #include <sys/rman.h>
    
    #include <net/if.h>
    #include <net/if_var.h>
    #include <net/ethernet.h>
    
    #include <isa/isavar.h>
    
    #include <dev/sbni/if_sbnireg.h>
    #include <dev/sbni/if_sbnivar.h>
    
    static int      sbni_probe_isa(device_t);
    static int      sbni_attach_isa(device_t);
    
    static device_method_t sbni_isa_methods[] = {
            /* Device interface */
            DEVMETHOD(device_probe, sbni_probe_isa),
            DEVMETHOD(device_attach, sbni_attach_isa),
            { 0, 0 }
    };
    
    static driver_t sbni_isa_driver = {
            "sbni",
            sbni_isa_methods,
            sizeof(struct sbni_softc)
    };
    
    static struct isa_pnp_id  sbni_ids[] = {
            { 0, NULL }     /* we have no pnp sbni cards atm.  */
    };
    
    static int
    sbni_probe_isa(device_t dev)
    {
            struct sbni_softc *sc;
            int error;
    
            error = ISA_PNP_PROBE(device_get_parent(dev), dev, sbni_ids);
            if (error && error != ENOENT)
                    return (error);
    
            sc = device_get_softc(dev);
    
            sc->io_res = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT,
                                                     &sc->io_rid, SBNI_PORTS,
                                                     RF_ACTIVE);
            if (!sc->io_res) {
                    printf("sbni: cannot allocate io ports!\n");
                    return (ENOENT);
            }
    
            if (sbni_probe(sc) != 0) {
                    sbni_release_resources(sc);
                    return (ENXIO);
            }
    
            device_set_desc(dev, "Granch SBNI12/ISA adapter");
            return (0);
    }
   
   static int
   sbni_attach_isa(device_t dev)
   {
           struct sbni_softc *sc;
           struct sbni_flags flags;
           int error;
      
           sc = device_get_softc(dev);
           sc->dev = dev;
   
           sc->irq_res = bus_alloc_resource_any(
               dev, SYS_RES_IRQ, &sc->irq_rid, RF_ACTIVE);
   
   #ifndef SBNI_DUAL_COMPOUND
   
           if (sc->irq_res == NULL) {
                   device_printf(dev, "irq conflict!\n");
                   sbni_release_resources(sc);
                   return (ENOENT);
           }
   
   #else   /* SBNI_DUAL_COMPOUND */
   
           if (sc->irq_res) {
                   sbni_add(sc);
           } else {
                   struct sbni_softc  *master;
   
                   if ((master = connect_to_master(sc)) == NULL) {
                           device_printf(dev, "failed to alloc irq\n");
                           sbni_release_resources(sc);
                           return (ENXIO);
                   } else {
                           device_printf(dev, "shared irq with %s\n",
                                  master->ifp->if_xname);
                   }
           } 
   #endif  /* SBNI_DUAL_COMPOUND */
   
           *(u_int32_t*)&flags = device_get_flags(dev);
   
           error = sbni_attach(sc, device_get_unit(dev) * 2, flags);
           if (error) {
                   device_printf(dev, "cannot initialize driver\n");
                   sbni_release_resources(sc);
                   return (error);
           }
   
           if (sc->irq_res) {
                   error = bus_setup_intr(
                       dev, sc->irq_res, INTR_TYPE_NET | INTR_MPSAFE,
                       NULL, sbni_intr, sc, &sc->irq_handle);
                   if (error) {
                           device_printf(dev, "bus_setup_intr\n");
                           sbni_detach(sc);
                           sbni_release_resources(sc);
                           return (error);
                   }
           }
   
           return (0);
   }
   
   DRIVER_MODULE(sbni, isa, sbni_isa_driver, 0, 0);
   MODULE_DEPEND(sbni, isa, 1, 1, 1);
   ISA_PNP_INFO(sbni_ids);

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