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

     /*      $NetBSD: lm_isa.c,v 1.9 2002/11/15 14:55:44 ad Exp $ */
     
     /*-
      * Copyright (c) 2000 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Bill Squier.
      *
     * 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: lm_isa.c,v 1.9 2002/11/15 14:55:44 ad Exp $");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/kernel.h>
    #include <sys/proc.h>
    #include <sys/device.h>
    #include <sys/malloc.h>
    #include <sys/errno.h>
    #include <sys/conf.h>
    
    #include <machine/bus.h>
    
    #include <dev/isa/isareg.h>
    #include <dev/isa/isavar.h>
    
    #include <machine/intr.h>
    #include <machine/bus.h>
    
    #include <dev/sysmon/sysmonvar.h>
    
    #include <dev/ic/nslm7xvar.h>
    
    #if defined(LMDEBUG)
    #define DPRINTF(x)              do { printf x; } while (0)
    #else
    #define DPRINTF(x)
    #endif
    
    
    int lm_isa_match(struct device *, struct cfdata *, void *);
    void lm_isa_attach(struct device *, struct device *, void *);
    u_int8_t lm_isa_readreg(struct lm_softc *, int);
    void lm_isa_writereg(struct lm_softc *, int, int);
    
    CFATTACH_DECL(lm_isa, sizeof(struct lm_softc),
        lm_isa_match, lm_isa_attach, NULL, NULL);
    
    
    int
    lm_isa_match(parent, match, aux)
            struct device *parent;
            struct cfdata *match;
            void *aux;
    {
            bus_space_tag_t iot;
            bus_space_handle_t ioh;
            struct isa_attach_args *ia = aux;
            int iobase;
            int rv;
    
            /* Must supply an address */
            if (ia->ia_nio < 1)
                    return (0);
    
            if (ISA_DIRECT_CONFIG(ia))
                    return (0);
    
            if (ia->ia_io[0].ir_addr == ISACF_PORT_DEFAULT)
                    return (0);
   
           iot = ia->ia_iot;
           iobase = ia->ia_io[0].ir_addr;
   
           if (bus_space_map(iot, iobase, 8, 0, &ioh))
                   return (0);
   
   
           /* Bus independent probe */
           rv = lm_probe(iot, ioh);
   
           bus_space_unmap(iot, ioh, 8);
   
           if (rv) {
                   ia->ia_nio = 1;
                   ia->ia_io[0].ir_size = 8;
   
                   ia->ia_niomem = 0;
                   ia->ia_nirq = 0;
                   ia->ia_ndrq = 0;
           }
   
           return (rv);
   }
   
   
   void
   lm_isa_attach(parent, self, aux)
           struct device *parent, *self;
           void *aux;
   {
           struct lm_softc *lmsc = (void *)self;
           int iobase;
           bus_space_tag_t iot;
           struct isa_attach_args *ia = aux;
   
           iobase = ia->ia_io[0].ir_addr;
           iot = lmsc->lm_iot = ia->ia_iot;
   
           if (bus_space_map(iot, iobase, 8, 0, &lmsc->lm_ioh)) {
                   printf(": can't map i/o space\n");
                   return;
           }
   
           /* Bus-independant attachment */
           lmsc->lm_writereg = lm_isa_writereg;
           lmsc->lm_readreg = lm_isa_readreg;
   
           lm_attach(lmsc);
   }
   
   
   u_int8_t
   lm_isa_readreg(sc, reg)
           struct lm_softc *sc;
           int reg;
   {
           bus_space_write_1(sc->lm_iot, sc->lm_ioh, LMC_ADDR, reg);
           return (bus_space_read_1(sc->lm_iot, sc->lm_ioh, LMC_DATA));
   }
   
   
   void
   lm_isa_writereg(sc, reg, val)
           struct lm_softc *sc;
           int reg;
           int val;
   {
           bus_space_write_1(sc->lm_iot, sc->lm_ioh, LMC_ADDR, reg);
           bus_space_write_1(sc->lm_iot, sc->lm_ioh, LMC_DATA, val);
   }

Cache object: d20a1fad0416cc1c97f6326bf846b411