FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/com_cpcbus.c

     /*      $NetBSD: com_cpcbus.c,v 1.5 2003/07/14 15:47:10 lukem Exp $     */
     
     /*
      * Copyright (c) 2002 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Lennart Augustsson (lennart@augustsson.net) at Sandburst Corp.
      *
     * 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: com_cpcbus.c,v 1.5 2003/07/14 15:47:10 lukem Exp $");
    
    #include <sys/param.h>
    #include <sys/device.h>
    #include <sys/tty.h>
    #include <sys/systm.h>
    
    #include <machine/bus.h>
    
    #include <dev/ic/cpc700reg.h>
    #include <dev/ic/cpc700var.h>
    
    #include <dev/ic/comreg.h>
    #include <dev/ic/comvar.h>
    
    struct com_cpc_softc {
            struct com_softc sc_com;
            void *sc_ih;
    };
    
    static int      com_cpc_match(struct device *, struct cfdata *, void *);
    static void     com_cpc_attach(struct device *, struct device *, void *);
    
    CFATTACH_DECL(com_cpcbus, sizeof(struct com_cpc_softc),
        com_cpc_match, com_cpc_attach, NULL, NULL);
    
    int
    com_cpc_match(struct device *parent, struct cfdata *cf, void *aux)
    {
            struct cpcbus_attach_args *caa = aux;
    
            return (strcmp(caa->cpca_name, "com") == 0);
    }
    
    void
    com_cpc_attach(struct device *parent, struct device *self, void *aux)
    {
            struct cpcbus_attach_args *caa = aux;
            struct com_cpc_softc *sc = (struct com_cpc_softc *)self;
            int iobase = caa->cpca_addr;
            int irq = caa->cpca_irq;
    
            sc->sc_com.sc_iot = caa->cpca_tag;
            sc->sc_com.sc_iobase = iobase;
    
            if (!com_is_console(sc->sc_com.sc_iot, iobase, &sc->sc_com.sc_ioh) &&
                bus_space_map(sc->sc_com.sc_iot, iobase, COM_NPORTS, 0,
                              &sc->sc_com.sc_ioh)) {
                    printf("%s: can't map i/o space\n", self->dv_xname);
                    return;
            }
    
            sc->sc_com.sc_frequency = CPC_COM_SPEED(caa->cpca_freq);
    
            com_attach_subr(&sc->sc_com);
    
            sc->sc_ih = intr_establish(irq, IST_LEVEL, IPL_SERIAL, comintr,
                                       &sc->sc_com);
    }

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