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drsupio.c revision 1.13 
      1 /*	$NetBSD: drsupio.c,v 1.13 2002/10/02 04:55:49 thorpej Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1997 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Ignatios Souvatzis.
      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: drsupio.c,v 1.13 2002/10/02 04:55:49 thorpej Exp $");
     41 
     42 /*
     43  * DraCo multi-io chip bus space stuff
     44  */
     45 
     46 #include <sys/types.h>
     47 
     48 #include <sys/conf.h>
     49 #include <sys/device.h>
     50 #include <sys/systm.h>
     51 #include <sys/param.h>
     52 
     53 #include <machine/bus.h>
     54 
     55 #include <amiga/include/cpu.h>
     56 
     57 #include <amiga/amiga/device.h>
     58 #include <amiga/amiga/drcustom.h>
     59 
     60 #include <amiga/dev/supio.h>
     61 
     62 struct drsupio_softc {
     63 	struct device sc_dev;
     64 	struct bus_space_tag sc_bst;
     65 };
     66 
     67 int drsupiomatch(struct device *, struct cfdata *, void *);
     68 void drsupioattach(struct device *, struct device *, void *);
     69 int drsupprint(void *auxp, const char *);
     70 void drlptintack(void *);
     71 
     72 CFATTACH_DECL(drsupio, sizeof(struct drsupio_softc),
     73     drsupiomatch, drsupioattach, NULL, NULL);
     74 
     75 int
     76 drsupiomatch(struct device *parent, struct cfdata *cfp, void *auxp)
     77 {
     78 	static int drsupio_matched = 0;
     79 
     80 	/* Exactly one of us lives on the DraCo */
     81 	if (!is_draco() || !matchname(auxp, "drsupio") || drsupio_matched)
     82 		return 0;
     83 
     84 	drsupio_matched = 1;
     85 	return 1;
     86 }
     87 
     88 struct drsupio_devs {
     89 	char *name;
     90 	int off;
     91 	int arg;
     92 } drsupiodevs[] = {
     93 	{ "com", 0x3f8, 115200 * 16 },
     94 	{ "com", 0x2f8, 115200 * 16 },
     95 	{ "lpt", 0x278, (int)drlptintack },
     96 	{ "fdc", 0x3f0, 0 },
     97 	/* WD port? */
     98 	{ 0 }
     99 };
    100 
    101 void
    102 drsupioattach(struct device *parent, struct device *self, void *auxp)
    103 {
    104 	struct drsupio_softc *drsc;
    105 	struct drsupio_devs  *drsd;
    106 	struct drioct *ioct;
    107 	struct supio_attach_args supa;
    108 
    109 	drsc = (struct drsupio_softc *)self;
    110 	drsd = drsupiodevs;
    111 
    112 	if (parent)
    113 		printf("\n");
    114 
    115 	drsc->sc_bst.base = DRCCADDR + NBPG * DRSUPIOPG + 1;
    116 	drsc->sc_bst.absm = &amiga_bus_stride_4;
    117 
    118 	supa.supio_iot = &drsc->sc_bst;
    119 	supa.supio_ipl = 5;
    120 
    121 	while (drsd->name) {
    122 		supa.supio_name = drsd->name;
    123 		supa.supio_iobase = drsd->off;
    124 		supa.supio_arg = drsd->arg;
    125 		config_found(self, &supa, drsupprint); /* XXX */
    126 		++drsd;
    127 	}
    128 
    129 	drlptintack(0);
    130 	ioct = (struct drioct *)(DRCCADDR + NBPG * DRIOCTLPG);
    131 	ioct->io_status2 |= DRSTAT2_PARIRQENA;
    132 }
    133 
    134 void
    135 drlptintack(void *p)
    136 {
    137 	struct drioct *ioct;
    138 
    139 	(void)p;
    140 	ioct = (struct drioct *)(DRCCADDR + NBPG * DRIOCTLPG);
    141 
    142 	ioct->io_parrst = 0;	/* any value works */
    143 }
    144 
    145 int
    146 drsupprint(void *auxp, const char *pnp)
    147 {
    148 	struct supio_attach_args *supa;
    149 	supa = auxp;
    150 
    151 	if (pnp == NULL)
    152 		return(QUIET);
    153 
    154 	printf("%s at %s port 0x%02x",
    155 	    supa->supio_name, pnp, supa->supio_iobase);
    156 
    157 	return(UNCONF);
    158 }
    159