FreeBSD/Linux Kernel Cross Reference
sys/dev/cm/if_cm_isa.c

     /*      $NetBSD: if_bah_zbus.c,v 1.6 2000/01/23 21:06:12 aymeric Exp $ */
     
     #include <sys/cdefs.h>
     __FBSDID("$FreeBSD: releng/8.4/sys/dev/cm/if_cm_isa.c 166901 2007-02-23 12:19:07Z piso $");
     
     /*-
      * Copyright (c) 1994, 1995, 1998 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
     * This code is derived from software contributed to The NetBSD Foundation
     * by Ignatios Souvatzis.
     *
     * 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 the NetBSD
     *        Foundation, Inc. and its contributors.
     * 4. Neither the name of The NetBSD Foundation nor the names of its
     *    contributors may be used to endorse or promote products derived
     *    from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
     */
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/socket.h>
    #include <sys/kernel.h>
    
    #include <sys/module.h>
    #include <sys/bus.h>
    
    #include <machine/bus.h>
    #include <sys/rman.h>
    #include <machine/resource.h>
    
    #include <net/if.h>
    #include <net/if_arc.h>
    
    #include <dev/cm/smc90cx6reg.h>
    #include <dev/cm/smc90cx6var.h>
    
    static int cm_isa_probe         (device_t);
    static int cm_isa_attach        (device_t);
    
    static int
    cm_isa_probe(dev)
            device_t dev;
    {
            struct cm_softc *sc = device_get_softc(dev);
            int rid;
    
            rid = 0;
            sc->port_res = bus_alloc_resource(
                dev, SYS_RES_IOPORT, &rid, 0ul, ~0ul, CM_IO_PORTS, RF_ACTIVE);
            if (sc->port_res == NULL)
                    return (ENOENT);
    
            if (GETREG(CMSTAT) == 0xff) {
                    cm_release_resources(dev);
                    return (ENXIO);
            }
    
            rid = 0;
            sc->mem_res = bus_alloc_resource(
                dev, SYS_RES_MEMORY, &rid, 0ul, ~0ul, CM_MEM_SIZE, RF_ACTIVE);
            if (sc->mem_res == NULL) {
                    cm_release_resources(dev);
                    return (ENOENT);
            }
    
            rid = 0;
            sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
            if (sc->irq_res == NULL) {
                    cm_release_resources(dev);
                    return (ENOENT);
            }
    
            return (0);
    }
    
    static int
   cm_isa_attach(dev)
           device_t dev;
   {
           struct cm_softc *sc = device_get_softc(dev);
           int error;
   
           /* init mtx and setup interrupt */
           mtx_init(&sc->sc_mtx, device_get_nameunit(dev),
               MTX_NETWORK_LOCK, MTX_DEF);
           error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET | INTR_MPSAFE,
               NULL, cmintr, sc, &sc->irq_handle);
           if (error)
                   goto err;
   
           /* attach */
           error = cm_attach(dev);
           if (error)
                   goto err;
   
           return 0;
   
   err:
           mtx_destroy(&sc->sc_mtx);
           cm_release_resources(dev);
           return (error);
   }
   
   static int
   cm_isa_detach(device_t dev)
   {
           struct cm_softc *sc = device_get_softc(dev);
           struct ifnet *ifp = sc->sc_ifp;
   
           /* stop and detach */
           CM_LOCK(sc);
           cm_stop_locked(sc);
           ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
           CM_UNLOCK(sc);
   
           callout_drain(&sc->sc_recon_ch);
           arc_ifdetach(ifp);
   
           /* teardown interrupt, destroy mtx and release resources */
           bus_teardown_intr(dev, sc->irq_res, sc->irq_handle);
           mtx_destroy(&sc->sc_mtx);
           if_free(ifp);
           cm_release_resources(dev);
   
           bus_generic_detach(dev);
           return (0);
   }
   
   static device_method_t cm_isa_methods[] = {
           /* Device interface */
           DEVMETHOD(device_probe,         cm_isa_probe),
           DEVMETHOD(device_attach,        cm_isa_attach),
           DEVMETHOD(device_detach,        cm_isa_detach),
   
           { 0, 0 }
   };
   
   static driver_t cm_isa_driver = {
           "cm",
           cm_isa_methods,
           sizeof(struct cm_softc)
   };
   
   DRIVER_MODULE(cm, isa, cm_isa_driver, cm_devclass, 0, 0);
   MODULE_DEPEND(cm, isa, 1, 1, 1);

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