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pckbc_jensenio.c revision 1.2
      1 /* $NetBSD: pckbc_jensenio.c,v 1.2 2001/07/12 23:25:40 thorpej Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe.
      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>			/* RCS ID & Copyright macro defns */
     40 
     41 __KERNEL_RCSID(0, "$NetBSD: pckbc_jensenio.c,v 1.2 2001/07/12 23:25:40 thorpej Exp $");
     42 
     43 #include <sys/param.h>
     44 #include <sys/systm.h>
     45 #include <sys/kernel.h>
     46 #include <sys/proc.h>
     47 #include <sys/device.h>
     48 #include <sys/malloc.h>
     49 #include <sys/errno.h>
     50 #include <sys/queue.h>
     51 #include <sys/lock.h>
     52 
     53 #include <machine/intr.h>
     54 #include <machine/bus.h>
     55 
     56 #include <dev/ic/i8042reg.h>
     57 #include <dev/ic/pckbcvar.h>
     58 
     59 #include <dev/eisa/eisavar.h>
     60 
     61 #include <dev/isa/isavar.h>
     62 
     63 #include <alpha/jensenio/jenseniovar.h>
     64 
     65 struct pckbc_jensenio_softc {
     66 	struct	pckbc_softc sc_pckbc;	/* real "pckbc" softc */
     67 
     68 	/* Jensen-specific goo. */
     69 	void	*sc_ih[PCKBC_NSLOTS];	/* interrupt handlers */
     70 	int	sc_irq[PCKBC_NSLOTS];	/* Sable IRQs to use */
     71 	eisa_chipset_tag_t sc_ec;	/* EISA chipset for registering intrs */
     72 };
     73 
     74 int	pckbc_jensenio_match(struct device *, struct cfdata *, void *);
     75 void	pckbc_jensenio_attach(struct device *, struct device *, void *);
     76 
     77 struct cfattach pckbc_jensenio_ca = {
     78 	sizeof(struct pckbc_jensenio_softc),
     79 	    pckbc_jensenio_match, pckbc_jensenio_attach
     80 };
     81 
     82 void	pckbc_jensenio_intr_establish(struct pckbc_softc *, pckbc_slot_t);
     83 
     84 int
     85 pckbc_jensenio_match(struct device *parent, struct cfdata *match, void *aux)
     86 {
     87 	struct jensenio_attach_args *ja = aux;
     88 
     89 	/* Always present. */
     90 	if (strcmp(ja->ja_name, match->cf_driver->cd_name) == 0)
     91 		return (1);
     92 
     93 	return (0);
     94 }
     95 
     96 void
     97 pckbc_jensenio_attach(struct device *parent, struct device *self, void *aux)
     98 {
     99 	struct pckbc_jensenio_softc *jsc = (void *)self;
    100 	struct pckbc_softc *sc = &jsc->sc_pckbc;
    101 	struct jensenio_attach_args *ja = aux;
    102 	struct pckbc_internal *t;
    103 	bus_space_handle_t ioh_d, ioh_c;
    104 
    105 	jsc->sc_ec = ja->ja_ec;
    106 
    107 	/*
    108 	 * Set up IRQs.
    109 	 */
    110 	jsc->sc_irq[PCKBC_KBD_SLOT] = ja->ja_irq[0];
    111 	jsc->sc_irq[PCKBC_AUX_SLOT] = ja->ja_irq[1];
    112 
    113 	sc->intr_establish = pckbc_jensenio_intr_establish;
    114 
    115 	if (pckbc_is_console(ja->ja_iot, ja->ja_ioaddr)) {
    116 		t = &pckbc_consdata;
    117 		pckbc_console_attached = 1;
    118 		/* t->t_cmdbyte was initialized by cnattach */
    119 	} else {
    120 		if (bus_space_map(ja->ja_iot, ja->ja_ioaddr + KBDATAP,
    121 				  1, 0, &ioh_d) != 0 ||
    122 		    bus_space_map(ja->ja_iot, ja->ja_ioaddr + KBCMDP,
    123 				  1, 0, &ioh_c) != 0)
    124 			panic("pckbc_jensenio_attach: couldn't map");
    125 
    126 		t = malloc(sizeof(struct pckbc_internal), M_DEVBUF, M_WAITOK);
    127 		memset(t, 0, sizeof(struct pckbc_internal));
    128 		t->t_iot = ja->ja_iot;
    129 		t->t_ioh_d = ioh_d;
    130 		t->t_ioh_c = ioh_c;
    131 		t->t_addr = ja->ja_ioaddr;
    132 		t->t_cmdbyte = KC8_CPU; /* Enable ports */
    133 	}
    134 
    135 	t->t_sc = sc;
    136 	sc->id = t;
    137 
    138 	printf("\n");
    139 
    140 	/* Finish off the attach. */
    141 	pckbc_attach(sc);
    142 }
    143 
    144 void
    145 pckbc_jensenio_intr_establish(struct pckbc_softc *sc, pckbc_slot_t slot)
    146 {
    147 	struct pckbc_jensenio_softc *jsc = (void *) sc;
    148 	const char *intrstr;
    149 
    150 	intrstr = eisa_intr_string(jsc->sc_ec, jsc->sc_irq[slot]);
    151 	jsc->sc_ih[slot] = eisa_intr_establish(jsc->sc_ec, jsc->sc_irq[slot],
    152 	    IST_EDGE, IPL_TTY, pckbcintr, sc);
    153 	if (jsc->sc_ih[slot] == NULL) {
    154 		printf("%s: unable to establish interrupt for %s slot",
    155 		    sc->sc_dv.dv_xname, pckbc_slot_names[slot]);
    156 		if (intrstr != NULL)
    157 			printf(" at %s", intrstr);
    158 		printf("\n");
    159 		return;
    160 	}
    161 	printf("%s: %s slot interrupting at %s\n", sc->sc_dv.dv_xname,
    162 	    pckbc_slot_names[slot], intrstr);
    163 }
    164