FreeBSD/Linux Kernel Cross Reference
sys/dev/isapnp/aha_isapnp.c

     /*      $NetBSD: aha_isapnp.c,v 1.7 2002/10/02 16:33:56 thorpej Exp $   */
     
     /*-
      * Copyright (c) 1998 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Christos Zoulas.
      *
     * 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. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *        This product includes software developed by the NetBSD
     *        Foundation, Inc. and its contributors.
     * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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>
    __KERNEL_RCSID(0, "$NetBSD: aha_isapnp.c,v 1.7 2002/10/02 16:33:56 thorpej Exp $");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/conf.h>
    #include <sys/device.h>
    
    #include <machine/bus.h>
    
    #include <dev/scsipi/scsi_all.h>
    #include <dev/scsipi/scsipi_all.h>
    #include <dev/scsipi/scsiconf.h>
    
    #include <dev/isa/isavar.h>
    
    #include <dev/isapnp/isapnpreg.h>
    #include <dev/isapnp/isapnpvar.h>
    #include <dev/isapnp/isapnpdevs.h>
    
    
    #include <dev/ic/ahareg.h>
    #include <dev/ic/ahavar.h>
    
    int     aha_isapnp_probe __P((struct device *, struct cfdata *, void *));
    void    aha_isapnp_attach __P((struct device *, struct device *, void *));
    
    CFATTACH_DECL(aha_isapnp, sizeof(struct aha_softc),
        aha_isapnp_probe, aha_isapnp_attach, NULL, NULL);
    
    int
    aha_isapnp_probe(parent, match, aux)
            struct device *parent;
            struct cfdata *match;
            void *aux;
    {
            int pri, variant;
    
            pri = isapnp_devmatch(aux, &isapnp_aha_devinfo, &variant);
            if (pri && variant > 0)
                    pri = 0;
            return (pri);
    }
    
    void
    aha_isapnp_attach(parent, self, aux)
            struct device *parent, *self;
            void *aux;
    {
            struct aha_softc *sc = (void *)self;
            struct aha_probe_data apd;
            struct isapnp_attach_args *ipa = aux;
    
            printf("\n");
    
            if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) {
                    printf("%s: error in region allocation\n",
                        sc->sc_dev.dv_xname);
                    return;
            }
    
           sc->sc_iot = ipa->ipa_iot;
           sc->sc_ioh = ipa->ipa_io[0].h;
           sc->sc_dmat = ipa->ipa_dmat;
   
           if (!aha_find(sc->sc_iot, sc->sc_ioh, &apd)) {
                   printf("%s: aha_find failed\n", sc->sc_dev.dv_xname);
                   return;
           }
   
           if (ipa->ipa_ndrq == 0) {
                   if (apd.sc_drq != -1) {
                           printf("%s: no PnP drq, but card has one\n",
                               sc->sc_dev.dv_xname);
                           return;
                   }
           } else if (apd.sc_drq != ipa->ipa_drq[0].num) {
                   printf("%s: card drq # (%d) != PnP # (%d)\n",
                       sc->sc_dev.dv_xname, apd.sc_drq, ipa->ipa_drq[0].num);
                   return;
           } else {
                   int error = isa_dmacascade(ipa->ipa_ic, ipa->ipa_drq[0].num);
                   if (error) {
                           printf("%s: unable to cascade DRQ, error = %d\n",
                               sc->sc_dev.dv_xname, error);
                           return;
                   }
           }
   
           if (apd.sc_irq != ipa->ipa_irq[0].num) {
                   printf("%s: card irq # (%d) != PnP # (%d)\n",
                       sc->sc_dev.dv_xname, apd.sc_irq, ipa->ipa_irq[0].num);
                   return;
           }
   
   
           sc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num,
               ipa->ipa_irq[0].type, IPL_BIO, aha_intr, sc);
   
           if (sc->sc_ih == NULL) {
                   printf("%s: couldn't establish interrupt\n",
                       sc->sc_dev.dv_xname);
                   return;
           }
   
           aha_attach(sc, &apd);
   }

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