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hpcin.c revision 1.3.2.2 
      1 /*	$NetBSD: hpcin.c,v 1.3.2.2 2001/06/21 20:01:38 nathanw Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2000, 2001 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by UCHIYAMA Yasushi.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 #include <sys/param.h>
     39 #include <sys/systm.h>
     40 #include <sys/device.h>
     41 
     42 #include <machine/config_hook.h>
     43 #include <machine/bus.h>
     44 
     45 #include <dev/hpc/hpciovar.h>
     46 #include <dev/hpc/hpciomanvar.h>
     47 
     48 #include "locators.h"
     49 
     50 int	hpcin_match(struct device *, struct cfdata *, void *);
     51 void	hpcin_attach(struct device *, struct device *, void *);
     52 int	hpcin_intr(void *);
     53 
     54 struct hpcin_softc {
     55 	struct device sc_dev;
     56 	struct hpcioman_attach_args sc_hma;
     57 	hpcio_intr_handle_t sc_ih;
     58 };
     59 
     60 #define sc_hc		sc_hma.hma_hc
     61 #define sc_intr_mode	sc_hma.hma_intr_mode
     62 #define sc_type		sc_hma.hma_type
     63 #define sc_id		sc_hma.hma_id
     64 #define sc_port		sc_hma.hma_port
     65 #define sc_initvalue	sc_hma.hma_initvalue
     66 #define sc_on		sc_hma.hma_on
     67 #define sc_off		sc_hma.hma_off
     68 
     69 struct cfattach hpcin_ca = {
     70 	sizeof(struct hpcin_softc), hpcin_match, hpcin_attach
     71 };
     72 
     73 int
     74 hpcin_match(struct device *parent, struct cfdata *cf, void *aux)
     75 {
     76 	return (1);
     77 }
     78 
     79 void
     80 hpcin_attach(struct device *parent, struct device *self, void *aux)
     81 {
     82 	struct hpcioman_attach_args *hma = aux;
     83 	struct hpcin_softc *sc = (void *)self;
     84 
     85 	if (hma->hma_hc == NULL ||
     86 	    hma->hma_type == HPCIOMANCF_EVTYPE_DEFAULT ||
     87 	    hma->hma_id == HPCIOMANCF_ID_DEFAULT ||
     88 	    hma->hma_port == HPCIOMANCF_PORT_DEFAULT) {
     89 		printf(": ignored\n");
     90 		return;
     91 	}
     92 	printf("\n");
     93 
     94 	sc->sc_hma = *hma;	/* structure assignment */
     95 
     96 	/* install interrupt handler */
     97 	sc->sc_ih = hpcio_intr_establish(sc->sc_hc, sc->sc_port,
     98 	    sc->sc_intr_mode, hpcin_intr, sc);
     99 	if (sc->sc_ih == NULL)
    100 		printf("hpcin: can't install interrupt handler\n");
    101 }
    102 
    103 int
    104 hpcin_intr(void *arg)
    105 {
    106 	struct hpcin_softc *sc = arg;
    107 	int on;
    108 
    109 	printf("%s: type=%d, id=%d\n", __FUNCTION__, sc->sc_type, sc->sc_id);
    110 	on = (hpcio_portread(sc->sc_hc, sc->sc_port) == sc->sc_on);
    111 	config_hook_call(sc->sc_type, sc->sc_id, (void *)on);
    112 	printf("done.\n");
    113 
    114 	return (0);
    115 }
    116