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

     /*      $OpenBSD: aic_isa.c,v 1.10 2022/04/06 18:59:28 naddy Exp $      */
     /*      $NetBSD: aic6360.c,v 1.52 1996/12/10 21:27:51 thorpej Exp $     */
     
     /*
      * Copyright (c) 1994, 1995, 1996 Charles Hannum.  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. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Charles M. Hannum.
     * 4. The name of the author may not be used to endorse or promote products
     *    derived from this software without specific prior written permission.
     *
     * Copyright (c) 1994 Jarle Greipsland
     * 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. The name of the author may not be used to endorse or promote products
     *    derived from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
     */
    
    /*
     * Acknowledgements: Many of the algorithms used in this driver are
     * inspired by the work of Julian Elischer (julian@tfs.com) and
     * Charles Hannum (mycroft@duality.gnu.ai.mit.edu).  Thanks a million!
     */
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/kernel.h>
    #include <sys/errno.h>
    #include <sys/ioctl.h>
    #include <sys/device.h>
    #include <sys/buf.h>
    #include <sys/queue.h>
    
    #include <machine/bus.h>
    #include <machine/intr.h>
    
    #include <scsi/scsi_all.h>
    #include <scsi/scsi_message.h>
    #include <scsi/scsiconf.h>
    
    #include <dev/isa/isavar.h>
    
    #include <dev/ic/aic6360reg.h>
    #include <dev/ic/aic6360var.h>
    
    int     aic_isa_probe(struct device *, void *, void *);
    void    aic_isa_attach(struct device *, struct device *, void *);
    
    const struct cfattach aic_isa_ca = {
            sizeof(struct aic_softc), aic_isa_probe, aic_isa_attach
    };
    
    /*
     * INITIALIZATION ROUTINES (probe, attach ++)
     */
    
    /*
     * aicprobe: probe for AIC6360 SCSI-controller
     * returns non-zero value if a controller is found.
     */
    int
    aic_isa_probe(struct device *parent, void *match, void *aux)
    {
            struct isa_attach_args *ia = aux;
            bus_space_tag_t iot = ia->ia_iot;
            bus_space_handle_t ioh;
            int rv;
    
            if (bus_space_map(iot, ia->ia_iobase, AIC_NPORTS, 0, &ioh))
                    return (0);
   
           AIC_TRACE(("aic: probing for aic-chip at port 0x%x\n", ia->ia_iobase));
           rv = aic_find(iot, ioh);
   
           bus_space_unmap(iot, ioh, AIC_NPORTS);
   
           if (rv) {
                   ia->ia_msize = 0;
                   ia->ia_iosize = AIC_NPORTS;
           }
           return (rv);
   }
   
   /*
    * Attach the AIC6360, fill out some high and low level data structures
    */
   void
   aic_isa_attach(struct device *parent, struct device *self, void *aux)
   {
           struct isa_attach_args *ia = aux;
           bus_space_tag_t iot = ia->ia_iot;
           bus_space_handle_t ioh;
           struct aic_softc *sc = (void *)self;
   
           if (bus_space_map(iot, ia->ia_iobase, AIC_NPORTS, 0, &ioh))
                   panic("%s: can't map i/o-ports", sc->sc_dev.dv_xname);
   
           sc->sc_iot = iot;
           sc->sc_ioh = ioh;
   
           printf("\n");
   
           sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
               IPL_BIO, aicintr, sc, sc->sc_dev.dv_xname);
   
           aicattach(sc);
   }

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