FreeBSD/Linux Kernel Cross Reference
sys/dev/isa/if_le.c

     /*      $OpenBSD: if_le.c,v 1.20 2014/12/22 02:28:51 tedu Exp $ */
     /*      $NetBSD: if_le_isa.c,v 1.2 1996/05/12 23:52:56 mycroft Exp $    */
     
     /*-
      * Copyright (c) 1995 Charles M. Hannum.  All rights reserved.
      * Copyright (c) 1992, 1993
      *      The Regents of the University of California.  All rights reserved.
      *
      * This code is derived from software contributed to Berkeley by
     * Ralph Campbell and Rick Macklem.
     *
     * 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 University 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 REGENTS 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 REGENTS 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.
     *
     *      @(#)if_le.c     8.2 (Berkeley) 11/16/93
     */
    
    #include "bpfilter.h"
    #include "isadma.h"
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/mbuf.h>
    #include <sys/syslog.h>
    #include <sys/socket.h>
    #include <sys/device.h>
    
    #include <net/if.h>
    #include <net/if_media.h>
    
    #include <netinet/in.h>
    #include <netinet/if_ether.h>
    
    #include <machine/cpu.h>
    #include <machine/intr.h>
    
    #include <dev/isa/isareg.h>
    #include <dev/isa/isavar.h>
    #include <dev/isa/isadmavar.h>
    
    #include <dev/ic/lancereg.h>
    #include <dev/ic/lancevar.h>
    #include <dev/ic/am7990reg.h>
    #include <dev/ic/am7990var.h>
    
    #include <dev/isa/if_levar.h>
    
    void
    le_isa_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val)
    {
            struct le_softc *lesc = (struct le_softc *)sc;
            bus_space_tag_t iot = lesc->sc_iot;
            bus_space_handle_t ioh = lesc->sc_ioh;
    
            bus_space_write_2(iot, ioh, lesc->sc_rap, port);
            bus_space_write_2(iot, ioh, lesc->sc_rdp, val);
    }
    
    uint16_t
    le_isa_rdcsr(struct lance_softc *sc, uint16_t port)
    {
            struct le_softc *lesc = (struct le_softc *)sc;
            bus_space_tag_t iot = lesc->sc_iot;
            bus_space_handle_t ioh = lesc->sc_ioh;
            uint16_t val;
    
            bus_space_write_2(iot, ioh, lesc->sc_rap, port);
            val = bus_space_read_2(iot, ioh, lesc->sc_rdp);
            return (val);
    }
    
    
    /*
     * Controller interrupt.
     */
    int
    le_isa_intredge(void *arg)
    {
   
           if (am7990_intr(arg) == 0)
                   return (0);
           for (;;)
                   if (am7990_intr(arg) == 0)
                           return (1);
   }

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