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hpcin.c revision 1.11.8.1 
      1 /*	$NetBSD: hpcin.c,v 1.11.8.1 2008/05/18 12:33:38 yamt 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  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: hpcin.c,v 1.11.8.1 2008/05/18 12:33:38 yamt Exp $");
     34 
     35 #include <sys/param.h>
     36 #include <sys/systm.h>
     37 #include <sys/device.h>
     38 
     39 #include <machine/config_hook.h>
     40 #include <sys/bus.h>
     41 
     42 #include <dev/hpc/hpciovar.h>
     43 #include <dev/hpc/hpciomanvar.h>
     44 
     45 #include "locators.h"
     46 
     47 int	hpcin_match(struct device *, struct cfdata *, void *);
     48 void	hpcin_attach(struct device *, struct device *, void *);
     49 int	hpcin_intr(void *);
     50 
     51 struct hpcin_softc {
     52 	struct device sc_dev;
     53 	struct hpcioman_attach_args sc_hma;
     54 	hpcio_intr_handle_t sc_ih;
     55 	config_call_tag sc_ct;
     56 };
     57 
     58 #define sc_hc		sc_hma.hma_hc
     59 #define sc_intr_mode	sc_hma.hma_intr_mode
     60 #define sc_type		sc_hma.hma_type
     61 #define sc_id		sc_hma.hma_id
     62 #define sc_port		sc_hma.hma_port
     63 #define sc_initvalue	sc_hma.hma_initvalue
     64 #define sc_on		sc_hma.hma_on
     65 #define sc_off		sc_hma.hma_off
     66 #define sc_connect	sc_hma.hma_connect
     67 
     68 CFATTACH_DECL(hpcin, sizeof(struct hpcin_softc),
     69     hpcin_match, hpcin_attach, NULL, NULL);
     70 
     71 int
     72 hpcin_match(struct device *parent, struct cfdata *cf, void *aux)
     73 {
     74 	return (1);
     75 }
     76 
     77 void
     78 hpcin_attach(struct device *parent, struct device *self, void *aux)
     79 {
     80 	struct hpcioman_attach_args *hma = aux;
     81 	struct hpcin_softc *sc = device_private(self);
     82 
     83 	if (hma->hma_hc == NULL ||
     84 	    hma->hma_type == HPCIOMANCF_EVTYPE_DEFAULT ||
     85 	    hma->hma_id == HPCIOMANCF_ID_DEFAULT ||
     86 	    hma->hma_port == HPCIOMANCF_PORT_DEFAULT) {
     87 		printf(": ignored\n");
     88 		return;
     89 	}
     90 	printf("\n");
     91 
     92 	sc->sc_hma = *hma;	/* structure assignment */
     93 
     94 	/* install interrupt handler */
     95 	sc->sc_ih = hpcio_intr_establish(sc->sc_hc, sc->sc_port,
     96 	    sc->sc_intr_mode, hpcin_intr, sc);
     97 	if (sc->sc_ih == NULL)
     98 		printf("hpcin: can't install interrupt handler\n");
     99 
    100 	if (sc->sc_connect)
    101 		sc->sc_ct = config_connect(sc->sc_type, sc->sc_id);
    102 }
    103 
    104 int
    105 hpcin_intr(void *arg)
    106 {
    107 	struct hpcin_softc *sc = arg;
    108 	int on;
    109 
    110 	on = (hpcio_portread(sc->sc_hc, sc->sc_port) == sc->sc_on);
    111 	if (sc->sc_connect) {
    112 		config_connected_call(sc->sc_ct, (void *)on);
    113 	} else {
    114 		printf("%s: type=%d, id=%d\n", __func__,
    115 		    sc->sc_type, sc->sc_id);
    116 		config_hook_call(sc->sc_type, sc->sc_id, (void *)on);
    117 		printf("done.\n");
    118 	}
    119 
    120 	return (0);
    121 }
    122