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pckbc_elb.c revision 1.1 
      1 /*	$NetBSD: pckbc_elb.c,v 1.1 2003/03/11 10:57:57 hannken Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2003 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Juergen Hannken-Illjes.
      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 
     39 #include <sys/param.h>
     40 #include <sys/conf.h>
     41 #include <sys/device.h>
     42 #include <sys/systm.h>
     43 #include <sys/malloc.h>
     44 
     45 #include <machine/bus.h>
     46 
     47 #include <dev/ic/i8042reg.h>
     48 #include <dev/ic/pckbcvar.h>
     49 
     50 #include <evbppc/explora/dev/elbvar.h>
     51 
     52 struct pckbc_elb_softc {
     53 	struct pckbc_softc sc_pckbc;
     54 	int sc_irq;
     55 };
     56 
     57 static int	pckbc_elb_probe(struct device *, struct cfdata *, void *);
     58 static void	pckbc_elb_attach(struct device *, struct device *, void *);
     59 static void	pckbc_elb_intr_establish(struct pckbc_softc *, pckbc_slot_t);
     60 
     61 CFATTACH_DECL(pckbc_elb, sizeof(struct pckbc_elb_softc),
     62     pckbc_elb_probe, pckbc_elb_attach, NULL, NULL);
     63 
     64 int
     65 pckbc_elb_probe(struct device *parent, struct cfdata *cf, void *aux)
     66 {
     67 	struct elb_attach_args *oaa = aux;
     68 
     69 	if (strcmp(oaa->elb_name, cf->cf_name) != 0)
     70 		return 0;
     71 
     72 	return (1);
     73 }
     74 
     75 void
     76 pckbc_elb_attach(struct device *parent, struct device *self, void *aux)
     77 {
     78 	struct pckbc_elb_softc *msc = (void *)self;
     79 	struct pckbc_softc *sc = &msc->sc_pckbc;
     80 	struct elb_attach_args *eaa = aux;
     81 	struct pckbc_internal *t;
     82 
     83 	/*
     84 	 * Setup interrupt data.
     85 	 */
     86 	msc->sc_irq = eaa->elb_irq;
     87 	sc->intr_establish = pckbc_elb_intr_establish;
     88 
     89 	if (pckbc_is_console(eaa->elb_bt, eaa->elb_base)) {
     90 		t = &pckbc_consdata;
     91 		pckbc_console_attached = 1;
     92 	} else {
     93 		t = malloc(sizeof(struct pckbc_internal), M_DEVBUF, M_WAITOK);
     94 		memset(t, 0, sizeof(struct pckbc_internal));
     95 	}
     96 
     97 	t->t_iot = eaa->elb_bt;
     98 	bus_space_map(eaa->elb_bt, eaa->elb_base, 1, 0, &t->t_ioh_d);
     99 	bus_space_map(eaa->elb_bt, eaa->elb_base2, 1, 0, &t->t_ioh_c);
    100 	t->t_addr = eaa->elb_base;
    101 	t->t_sc = sc;
    102 	sc->id = t;
    103 
    104 	printf("\n");
    105 
    106 	pckbc_attach(sc);
    107 }
    108 
    109 static void
    110 pckbc_elb_intr_establish(struct pckbc_softc *sc, pckbc_slot_t slot)
    111 {
    112 	struct pckbc_elb_softc *msc = (void *)sc;
    113 	int irq = msc->sc_irq;
    114 
    115 	/*
    116 	 * We ignore slot since all slots use the same interrupt.
    117 	 */
    118 
    119 	if (irq >= 0)
    120 	 	intr_establish(irq, IST_LEVEL, IPL_SERIAL, pckbcintr, sc);
    121 
    122 	irq = -1;
    123 }
    124