FreeBSD/Linux Kernel Cross Reference
sys/dev/mca/mca.c

     /*      $NetBSD: mca.c,v 1.13 2003/01/01 00:10:21 thorpej Exp $ */
     
     /*-
      * Copyright (c) 2000, 2001 The NetBSD Foundation, Inc.
      * Copyright (c) 1996-1999 Scott D. Telford.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Scott Telford <s.telford@ed.ac.uk>.
     *
     * 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.
     */
    
    /*
     * MCA Bus device
     */
    
    #include <sys/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: mca.c,v 1.13 2003/01/01 00:10:21 thorpej Exp $");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/device.h>
    
    #include <machine/bus.h>
    
    #include <dev/mca/mcareg.h>
    #include <dev/mca/mcavar.h>
    #include <dev/mca/mcadevs.h>
    
    int     mca_match __P((struct device *, struct cfdata *, void *));
    void    mca_attach __P((struct device *, struct device *, void *));
    
    CFATTACH_DECL(mca, sizeof(struct device),
        mca_match, mca_attach, NULL, NULL);
    
    int     mca_submatch __P((struct device *, struct cfdata *, void *));
    int     mca_print __P((void *, const char *));
    
    int
    mca_match(parent, cf, aux)
            struct device *parent;
            struct cfdata *cf;
            void *aux;
    {
            struct mcabus_attach_args *mba = aux;
    
            if (strcmp(mba->mba_busname, cf->cf_name))
                    return (0);
    
            /* sanity (only mca0 supported currently) */
            if (mba->mba_bus < 0 || mba->mba_bus > 0)
                    return (0);
    
            /* XXX check other indicators? */
    
            return (1);
    }
    
    int
    mca_print(aux, pnp)
            void *aux;
            const char *pnp;
    {
            register struct mca_attach_args *ma = aux;
            char devinfo[256];
    
            if (pnp) {
                    mca_devinfo(ma->ma_id, devinfo);
                    aprint_normal("%s slot %d: %s", pnp, ma->ma_slot + 1, devinfo);
            }
    
            /*
            * Print "configured" for Memory Extension boards - there is no
            * meaningfull driver for them, they "just work".
            */
           switch(ma->ma_id) {
           case MCA_PRODUCT_HRAM: case MCA_PRODUCT_IQRAM: case MCA_PRODUCT_MICRAM:
           case MCA_PRODUCT_ASTRAM: case MCA_PRODUCT_KINGRAM:
           case MCA_PRODUCT_KINGRAM8: case MCA_PRODUCT_KINGRAM16:
           case MCA_PRODUCT_KINGRAM609: case MCA_PRODUCT_HYPRAM:
           case MCA_PRODUCT_QRAM1: case MCA_PRODUCT_QRAM2: case MCA_PRODUCT_EVERAM:
           case MCA_PRODUCT_BOCARAM: case MCA_PRODUCT_IBMRAM1:
           case MCA_PRODUCT_IBMRAM2: case MCA_PRODUCT_IBMRAM3:
           case MCA_PRODUCT_IBMRAM4: case MCA_PRODUCT_IBMRAM5:
           case MCA_PRODUCT_IBMRAM6: case MCA_PRODUCT_IBMRAM7:
                   aprint_normal(": memory configured\n");
                   return (QUIET);
           default:
                   return (UNCONF);
           }
   }
   
   int
   mca_submatch(parent, cf, aux)
           struct device *parent;
           struct cfdata *cf;
           void *aux;
   {
           struct mca_attach_args *ma = aux;
   
           if (cf->mcacf_slot != MCA_UNKNOWN_SLOT &&
               cf->mcacf_slot != ma->ma_slot)
                   return 0;
           return (config_match(parent, cf, aux));
   }
   
   void
   mca_attach(parent, self, aux)
           struct device *parent, *self;
           void *aux;
   {
           struct mcabus_attach_args *mba = aux;
           bus_space_tag_t iot, memt;
           bus_dma_tag_t dmat;
           mca_chipset_tag_t mc;
           int slot;
   
           mca_attach_hook(parent, self, mba);
           printf("\n");
   
           iot = mba->mba_iot;
           memt = mba->mba_memt;
           mc = mba->mba_mc;
           dmat = mba->mba_dmat;
   
           /*
            * Search for and attach subdevices.
            *
            * NB: In the adapter setup register, slots are numbered from 0,
            * but officially they are numbered from 1.
            * We use the former convention internally and the latter for text
            * messages and in config files.
            */
   
           for (slot = 0; slot < MCA_MAX_SLOTS; slot++) {
                   struct mca_attach_args ma;
                   int reg;
   
                   ma.ma_iot = iot;
                   ma.ma_memt = memt;
                   ma.ma_dmat = dmat;
                   ma.ma_mc = mc;
                   ma.ma_slot = slot;
   
                   for(reg = 0; reg < 8; reg++)
                           ma.ma_pos[reg]=mca_conf_read(mc, slot, reg);
   
                   ma.ma_id = ma.ma_pos[0] + (ma.ma_pos[1] << 8);
                   if (ma.ma_id == 0xffff) /* no adapter here */
                           continue;
   
                   if (ma.ma_pos[2] & MCA_POS2_ENABLE
                       || mca_match_disabled(ma.ma_id))
                           config_found_sm(self, &ma, mca_print, mca_submatch);
                   else {
                           mca_print(&ma, self->dv_xname);
                           printf(" disabled\n");
                   }
           }
   }

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