scc_bfe_sbus.c

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    1 /*-
    2  * Copyright (c) 2004-2006 Marcel Moolenaar
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  *
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   25  */
   26 
   27 #include <sys/cdefs.h>
   28 __FBSDID("$FreeBSD$");
   29 
   30 #include <sys/param.h>
   31 #include <sys/systm.h>
   32 #include <sys/bus.h>
   33 #include <sys/conf.h>
   34 #include <sys/kernel.h>
   35 #include <sys/module.h>
   36 
   37 #include <dev/ofw/ofw_bus.h>
   38 
   39 #include <machine/bus.h>
   40 #include <sys/rman.h>
   41 #include <machine/resource.h>
   42 
   43 #include <dev/scc/scc_bfe.h>
   44 
   45 #define SBUS_REGSHFT    1
   46 #define SBUS_RCLK       307200
   47 
   48 static int
   49 scc_sbus_probe(device_t dev)
   50 {
   51         struct scc_softc *sc;
   52         const char *nm;
   53 
   54         sc = device_get_softc(dev);
   55         nm = ofw_bus_get_name(dev);
   56         if (!strcmp(nm, "zs")) {
   57                 device_set_desc(dev, "Zilog Z8530 dual channel SCC");
   58                 sc->sc_class = &scc_z8530_class;
   59                 return (scc_bfe_probe(dev, SBUS_REGSHFT, SBUS_RCLK, 0));
   60         }
   61         return (ENXIO);
   62 }
   63 
   64 static int
   65 scc_sbus_attach(device_t dev)
   66 {
   67 
   68         return (scc_bfe_attach(dev, 0));
   69 }
   70 
   71 static device_method_t scc_sbus_methods[] = {
   72         /* Device interface */
   73         DEVMETHOD(device_probe,         scc_sbus_probe),
   74         DEVMETHOD(device_attach,        scc_sbus_attach),
   75         DEVMETHOD(device_detach,        scc_bfe_detach),
   76 
   77         DEVMETHOD(bus_alloc_resource,   scc_bus_alloc_resource),
   78         DEVMETHOD(bus_release_resource, scc_bus_release_resource),
   79         DEVMETHOD(bus_get_resource,     scc_bus_get_resource),
   80         DEVMETHOD(bus_read_ivar,        scc_bus_read_ivar),
   81         DEVMETHOD(bus_setup_intr,       scc_bus_setup_intr),
   82         DEVMETHOD(bus_teardown_intr,    scc_bus_teardown_intr),
   83 
   84         DEVMETHOD_END
   85 };
   86 
   87 static driver_t scc_sbus_driver = {
   88         scc_driver_name,
   89         scc_sbus_methods,
   90         sizeof(struct scc_softc),
   91 };
   92 
   93 DRIVER_MODULE(scc, fhc, scc_sbus_driver, scc_devclass, NULL, NULL);
   94 DRIVER_MODULE(scc, sbus, scc_sbus_driver, scc_devclass, NULL, NULL);

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FreeBSD/Linux Kernel Cross Reference sys/dev/scc/scc_bfe_sbus.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/scc/scc_bfe_sbus.c