Home | History | Annotate | Line # | Download | only in dev
pckbc_elb.c revision 1.2 
      1 /*	$NetBSD: pckbc_elb.c,v 1.2 2003/07/15 01:37:37 lukem 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/cdefs.h>
     40 __KERNEL_RCSID(0, "$NetBSD: pckbc_elb.c,v 1.2 2003/07/15 01:37:37 lukem Exp $");
     41 
     42 #include <sys/param.h>
     43 #include <sys/conf.h>
     44 #include <sys/device.h>
     45 #include <sys/systm.h>
     46 #include <sys/malloc.h>
     47 
     48 #include <machine/bus.h>
     49 
     50 #include <dev/ic/i8042reg.h>
     51 #include <dev/ic/pckbcvar.h>
     52 
     53 #include <evbppc/explora/dev/elbvar.h>
     54 
     55 struct pckbc_elb_softc {
     56 	struct pckbc_softc sc_pckbc;
     57 	int sc_irq;
     58 };
     59 
     60 static int	pckbc_elb_probe(struct device *, struct cfdata *, void *);
     61 static void	pckbc_elb_attach(struct device *, struct device *, void *);
     62 static void	pckbc_elb_intr_establish(struct pckbc_softc *, pckbc_slot_t);
     63 
     64 CFATTACH_DECL(pckbc_elb, sizeof(struct pckbc_elb_softc),
     65     pckbc_elb_probe, pckbc_elb_attach, NULL, NULL);
     66 
     67 int
     68 pckbc_elb_probe(struct device *parent, struct cfdata *cf, void *aux)
     69 {
     70 	struct elb_attach_args *oaa = aux;
     71 
     72 	if (strcmp(oaa->elb_name, cf->cf_name) != 0)
     73 		return 0;
     74 
     75 	return (1);
     76 }
     77 
     78 void
     79 pckbc_elb_attach(struct device *parent, struct device *self, void *aux)
     80 {
     81 	struct pckbc_elb_softc *msc = (void *)self;
     82 	struct pckbc_softc *sc = &msc->sc_pckbc;
     83 	struct elb_attach_args *eaa = aux;
     84 	struct pckbc_internal *t;
     85 
     86 	/*
     87 	 * Setup interrupt data.
     88 	 */
     89 	msc->sc_irq = eaa->elb_irq;
     90 	sc->intr_establish = pckbc_elb_intr_establish;
     91 
     92 	if (pckbc_is_console(eaa->elb_bt, eaa->elb_base)) {
     93 		t = &pckbc_consdata;
     94 		pckbc_console_attached = 1;
     95 	} else {
     96 		t = malloc(sizeof(struct pckbc_internal), M_DEVBUF, M_WAITOK);
     97 		memset(t, 0, sizeof(struct pckbc_internal));
     98 	}
     99 
    100 	t->t_iot = eaa->elb_bt;
    101 	bus_space_map(eaa->elb_bt, eaa->elb_base, 1, 0, &t->t_ioh_d);
    102 	bus_space_map(eaa->elb_bt, eaa->elb_base2, 1, 0, &t->t_ioh_c);
    103 	t->t_addr = eaa->elb_base;
    104 	t->t_sc = sc;
    105 	sc->id = t;
    106 
    107 	printf("\n");
    108 
    109 	pckbc_attach(sc);
    110 }
    111 
    112 static void
    113 pckbc_elb_intr_establish(struct pckbc_softc *sc, pckbc_slot_t slot)
    114 {
    115 	struct pckbc_elb_softc *msc = (void *)sc;
    116 	int irq = msc->sc_irq;
    117 
    118 	/*
    119 	 * We ignore slot since all slots use the same interrupt.
    120 	 */
    121 
    122 	if (irq >= 0)
    123 	 	intr_establish(irq, IST_LEVEL, IPL_SERIAL, pckbcintr, sc);
    124 
    125 	irq = -1;
    126 }
    127