FreeBSD/Linux Kernel Cross Reference
sys/dev/vx/if_vx_eisa.c

     /*
      * Copyright (C) 1996 Naoki Hamada <nao@tom-yam.or.jp>
      * All rights reserved.
      *
      * 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. Neither the name of the author nor the names of any co-contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * 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.
     *
     * $FreeBSD: releng/5.0/sys/dev/vx/if_vx_eisa.c 92739 2002-03-20 02:08:01Z alfred $
     */
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/kernel.h>
    #include <sys/socket.h>
    #include <sys/module.h>
    #include <sys/bus.h>
    
    #include <machine/bus.h>
    #include <machine/resource.h>
    #include <sys/rman.h>
    
    #include <net/if.h>
    #include <net/if_arp.h>
    
    #include <dev/eisa/eisaconf.h>
    
    #include <dev/vx/if_vxreg.h>
    
    #define EISA_DEVICE_ID_3COM_3C592       0x506d5920
    #define EISA_DEVICE_ID_3COM_3C597_TX    0x506d5970
    #define EISA_DEVICE_ID_3COM_3C597_T4    0x506d5971
    #define EISA_DEVICE_ID_3COM_3C597_MII   0x506d5972
    
    
    #define VX_EISA_SLOT_OFFSET             0x0c80
    #define VX_EISA_IOSIZE                  0x000a
    #define VX_RESOURCE_CONFIG              0x0008
    
    
    static const char *vx_match(eisa_id_t type);
    
    static const char*
    vx_match(eisa_id_t type)
    {
        switch (type) {
          case EISA_DEVICE_ID_3COM_3C592:
            return "3Com 3C592 Network Adapter";
            break;
          case EISA_DEVICE_ID_3COM_3C597_TX:
            return "3Com 3C597-TX Network Adapter";
            break;
          case EISA_DEVICE_ID_3COM_3C597_T4:
            return "3Com 3C597-T4 Network Adapter";
            break;
          case EISA_DEVICE_ID_3COM_3C597_MII:
            return "3Com 3C597-MII Network Adapter";
            break;
          default:
            break;
        }
        return (NULL);
    }
    
    static int
    vx_eisa_probe(device_t dev)
    {
        const char     *desc;
        u_long          iobase;
        u_long          port;
    
        desc = vx_match(eisa_get_id(dev));
        if (!desc)
            return (ENXIO);
        device_set_desc(dev, desc);
    
        port = eisa_get_slot(dev) * EISA_SLOT_SIZE;
        iobase = port + VX_EISA_SLOT_OFFSET;
    
       eisa_add_iospace(dev, iobase, VX_EISA_IOSIZE, RESVADDR_NONE);
       eisa_add_iospace(dev, port, VX_IOSIZE, RESVADDR_NONE);
   
       /* Set irq */
       eisa_add_intr(dev, inw(iobase + VX_RESOURCE_CONFIG) >> 12,
                     EISA_TRIGGER_EDGE);
   
       return (0);
   }
   
   static int
   vx_eisa_attach(device_t dev)
   {
       struct vx_softc *sc;
       struct resource *io = 0;
       struct resource *eisa_io = 0;
       struct resource *irq = 0;
       int             rid;
       void            *ih;
   
       /*
        * The addresses are sorted in increasing order
        * so we know the port to pass to the core ep
        * driver comes first.
        */
       rid = 0;
       io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
                               0, ~0, 1, RF_ACTIVE);
       if (!io) {
           device_printf(dev, "No I/O space?!\n");
           goto bad;
       }
   
       rid = 1;
       eisa_io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
                                    0, ~0, 1, RF_ACTIVE);
       if (!eisa_io) {
           device_printf(dev, "No I/O space?!\n");
           goto bad;
       }
   
       sc = device_get_softc(dev);
   
       sc->vx_res = io;
       sc->vx_bhandle = rman_get_bushandle(io);
       sc->vx_btag = rman_get_bustag(io);
   
       rid = 0;
       irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid,
                                0, ~0, 1, RF_ACTIVE);
       if (!irq) {
           device_printf(dev, "No irq?!\n");
           goto bad;
       }
   
       sc->vx_irq = irq;
   
       /* Now the registers are availible through the lower ioport */
   
       vxattach(sc);
   
       if (bus_setup_intr(dev, irq, INTR_TYPE_NET, vxintr, sc, &ih)) {
           goto bad;
       }
   
       sc->vx_intrhand = ih;
   
       return 0;
   
    bad:
       if (io)
           bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
       if (eisa_io)
           bus_release_resource(dev, SYS_RES_IOPORT, 0, eisa_io);
       if (irq)
           bus_release_resource(dev, SYS_RES_IRQ, 0, irq);
       return -1;
   }
   
   static device_method_t vx_eisa_methods[] = {
           /* Device interface */
           DEVMETHOD(device_probe,         vx_eisa_probe),
           DEVMETHOD(device_attach,        vx_eisa_attach),
   
           { 0, 0 }
   };
   
   static driver_t vx_eisa_driver = {
           "vx",
           vx_eisa_methods,
           1,                      /* unused */
   };
   
   static devclass_t vx_devclass;
   
   DRIVER_MODULE(vx, eisa, vx_eisa_driver, vx_devclass, 0, 0);

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