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

     /*      $OpenBSD: cy_isa.c,v 1.11 2022/04/06 18:59:28 naddy Exp $       */
     /*
      * Copyright (c) 1996 Timo Rossi.
      * 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. Neither the name of the author nor the names of contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
     */
    
    /*
     * cy_isa.c
     *
     * Driver for Cyclades Cyclom-8/16/32 multiport serial cards
     * (currently not tested with Cyclom-32 cards)
     *
     * Timo Rossi, 1996
     */
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/device.h>
    
    #include <machine/bus.h>
    
    #include <dev/isa/isavar.h>
    #include <dev/isa/isareg.h>
    
    #include <dev/ic/cd1400reg.h>
    #include <dev/ic/cyreg.h>
    
    static int cy_isa_probe(struct device *, void *, void *);
    void cy_isa_attach(struct device *, struct device *, void *);
    
    const struct cfattach cy_isa_ca = {
            sizeof(struct cy_softc), cy_isa_probe, cy_isa_attach
    };
    
    int
    cy_isa_probe(struct device *parent, void *match, void *aux)
    {
            int card = ((struct device *)match)->dv_unit;
            struct isa_attach_args *ia = aux;
            bus_space_tag_t memt;
            bus_space_handle_t memh;
            int ret;
    
            if (ia->ia_irq == IRQUNK) {
                    printf("cy%d error: interrupt not defined\n", card);
                    return (0);
            }
    
            memt = ia->ia_memt;
            if (bus_space_map(memt, ia->ia_maddr, 0x2000, 0, &memh) != 0)
                    return (0);
    
            ret = cy_probe_common(memt, memh, CY_BUSTYPE_ISA);
            bus_space_unmap(memt, memh, 0x2000);
            if (ret == 0)
                    return (0);
    
            ia->ia_iosize = 0;
            ia->ia_msize = 0x2000;
            return (1);
    }
    
    void
    cy_isa_attach(struct device *parent, struct device *self, void *aux)
    {
            struct cy_softc *sc = (struct cy_softc *)self;
            struct isa_attach_args *ia = aux;
    
            sc->sc_bustype = CY_BUSTYPE_ISA;
            sc->sc_memt = ia->ia_memt;
    
            if (bus_space_map(ia->ia_memt, ia->ia_maddr, 0x2000, 0,
                &sc->sc_memh) != 0)
                    return;
    
           sc->sc_nr_cd1400s = cy_probe_common(sc->sc_memt, sc->sc_memh,
               CY_BUSTYPE_ISA);
   
           cy_attach(parent, self);
   
           sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq,
               IST_EDGE, IPL_TTY, cy_intr, sc, sc->sc_dev.dv_xname);
   
           if (sc->sc_ih == NULL)
                   panic("cy: couldn't establish interrupt");
   }

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