opic.c

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    1 /*-
    2  * Copyright 2006 by Juniper Networks. All rights reserved.
    3  *
    4  * Redistribution and use in source and binary forms, with or without
    5  * modification, are permitted provided that the following conditions
    6  * are met:
    7  * 1. Redistributions of source code must retain the above copyright
    8  *    notice, this list of conditions and the following disclaimer.
    9  * 2. Redistributions in binary form must reproduce the above copyright
   10  *    notice, this list of conditions and the following disclaimer in the
   11  *    documentation and/or other materials provided with the distribution.
   12  * 3. The name of the author may not be used to endorse or promote products
   13  *    derived from this software without specific prior written permission.
   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,
   20  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   21  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
   22  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   23  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   25  * SUCH DAMAGE.
   26  *
   27  */
   28 
   29 #include <sys/cdefs.h>
   30 __FBSDID("$FreeBSD$");
   31 
   32 #include <sys/param.h>
   33 #include <sys/systm.h>
   34 #include <sys/kernel.h>
   35 #include <sys/module.h>
   36 #include <sys/bus.h>
   37 #include <sys/rman.h>
   38 #include <sys/bus.h>
   39 
   40 #include <machine/bus.h>
   41 #include <machine/intr_machdep.h>
   42 #include <machine/openpicvar.h>
   43 #include <machine/ocpbus.h>
   44 
   45 #include "pic_if.h"
   46 
   47 /*
   48  * OpenPIC attachment to ocpbus
   49  */
   50 static int      openpic_ocpbus_probe(device_t);
   51 
   52 static device_method_t  openpic_ocpbus_methods[] = {
   53         /* Device interface */
   54         DEVMETHOD(device_probe,         openpic_ocpbus_probe),
   55         DEVMETHOD(device_attach,        openpic_attach),
   56 
   57         /* PIC interface */
   58         DEVMETHOD(pic_config,           openpic_config),
   59         DEVMETHOD(pic_dispatch,         openpic_dispatch),
   60         DEVMETHOD(pic_enable,           openpic_enable),
   61         DEVMETHOD(pic_eoi,              openpic_eoi),
   62         DEVMETHOD(pic_ipi,              openpic_ipi),
   63         DEVMETHOD(pic_mask,             openpic_mask),
   64         DEVMETHOD(pic_unmask,           openpic_unmask),
   65 
   66         { 0, 0 },
   67 };
   68 
   69 static driver_t openpic_ocpbus_driver = {
   70         "openpic",
   71         openpic_ocpbus_methods,
   72         sizeof(struct openpic_softc)
   73 };
   74 
   75 DRIVER_MODULE(openpic, ocpbus, openpic_ocpbus_driver, openpic_devclass, 0, 0);
   76 
   77 static int
   78 openpic_ocpbus_probe (device_t dev)
   79 {
   80         device_t parent;
   81         uintptr_t devtype;
   82         int error;
   83 
   84         parent = device_get_parent(dev);
   85 
   86         error = BUS_READ_IVAR(parent, dev, OCPBUS_IVAR_DEVTYPE, &devtype);
   87         if (error)
   88                 return (error);
   89         if (devtype != OCPBUS_DEVTYPE_PIC)
   90                 return (ENXIO);
   91 
   92         device_set_desc(dev, OPENPIC_DEVSTR);
   93         return (BUS_PROBE_DEFAULT);
   94 }

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FreeBSD/Linux Kernel Cross Reference sys/powerpc/mpc85xx/opic.c

FreeBSD/Linux Kernel Cross Reference
sys/powerpc/mpc85xx/opic.c