FreeBSD/Linux Kernel Cross Reference
sys/dev/altera/atse/if_atse_nexus.c

     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      *
      * Copyright (c) 2012,2013 Bjoern A. Zeeb
      * All rights reserved.
      *
      * This software was developed by SRI International and the University of
      * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-11-C-0249)
      * ("MRC2"), as part of the DARPA MRC research programme.
     *
     * 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.
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD$");
    
    #include "opt_device_polling.h"
    
    #include <sys/param.h>
    #include <sys/kernel.h>
    #include <sys/bus.h>
    #include <sys/module.h>
    #include <sys/rman.h>
    #include <sys/socket.h>
    #include <sys/types.h>
    
    #include <machine/bus.h>
    #include <machine/resource.h>
    
    #include <net/ethernet.h>
    #include <net/if.h>
    #include <net/if_media.h>
    #include <net/if_var.h>
    
    #include <dev/mii/mii.h>
    #include <dev/mii/miivar.h>
    
    #include <dev/altera/atse/if_atsereg.h>
    
    /* "device miibus" required.  See GENERIC if you get errors here. */
    #include "miibus_if.h"
    
    MODULE_DEPEND(atse, ether, 1, 1, 1);
    MODULE_DEPEND(atse, miibus, 1, 1, 1);
    
    /*
     * Device routines for interacting with nexus (probe, attach, detach) & helpers.
     * XXX We should add suspend/resume later.
     */
    static int __unused
    atse_resource_int(device_t dev, const char *resname, int *v)
    {
            int error;
    
            error = resource_int_value(device_get_name(dev), device_get_unit(dev),
                resname, v);
            if (error != 0) {
                    /* If it does not exist, we fail, so not ingoring ENOENT. */
                    device_printf(dev, "could not fetch '%s' hint\n", resname);
                    return (error);
            }
    
            return (0);
    }
    
    static int __unused
    atse_resource_long(device_t dev, const char *resname, long *v)
    {
            int error;
    
            error = resource_long_value(device_get_name(dev), device_get_unit(dev),
                resname, v);
            if (error != 0) {
                    /* If it does not exist, we fail, so not ingoring ENOENT. */
                    device_printf(dev, "could not fetch '%s' hint\n", resname);
                    return (error);
            }
    
            return (0);
    }
   
   static int
   atse_probe_nexus(device_t dev)
   {
   
           device_set_desc(dev, "Altera Triple-Speed Ethernet MegaCore");
   
           return (BUS_PROBE_NOWILDCARD);
   }
   
   static int
   atse_attach_nexus(device_t dev)
   {
           struct atse_softc *sc;
           int error;
   
           sc = device_get_softc(dev);
           sc->atse_dev = dev;
           sc->atse_unit = device_get_unit(dev);
   
           /* Avalon-MM, atse management register region. */
           sc->atse_mem_rid = 0;
           sc->atse_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
               &sc->atse_mem_rid, RF_ACTIVE);
           if (sc->atse_mem_res == NULL) {
                   device_printf(dev, "failed to map memory for ctrl region\n");
                   return (ENXIO);
           }
   
           error = atse_attach(dev);
           if (error) {
                   /* Cleanup. */
                   atse_detach_resources(dev);
                   return (error);
           }
   
           return (0);
   }
   
   static device_method_t atse_methods_nexus[] = {
           /* Device interface */
           DEVMETHOD(device_probe,         atse_probe_nexus),
           DEVMETHOD(device_attach,        atse_attach_nexus),
           DEVMETHOD(device_detach,        atse_detach_dev),
   
           /* MII interface */
           DEVMETHOD(miibus_readreg,       atse_miibus_readreg),
           DEVMETHOD(miibus_writereg,      atse_miibus_writereg),
           DEVMETHOD(miibus_statchg,       atse_miibus_statchg),
   
           DEVMETHOD_END
   };
   
   static driver_t atse_driver_nexus = {
           "atse",
           atse_methods_nexus,
           sizeof(struct atse_softc)
   };
   
   DRIVER_MODULE(atse, nexus, atse_driver_nexus, atse_devclass, 0, 0);
   DRIVER_MODULE(miibus, atse, miibus_driver, miibus_devclass, 0, 0);

Cache object: fd5022947f0b8184e00979d71d6936fd