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drsupio.c revision 1.10 
      1 /*	$NetBSD: drsupio.c,v 1.10 2002/01/28 09:56:54 aymeric 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 1.10 2002/01/28 09:56:54 aymeric 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 #include <machine/conf.h>
     55 
     56 #include <amiga/include/cpu.h>
     57 
     58 #include <amiga/amiga/device.h>
     59 #include <amiga/amiga/drcustom.h>
     60 
     61 #include <amiga/dev/supio.h>
     62 
     63 struct drsupio_softc {
     64 	struct device sc_dev;
     65 	struct bus_space_tag sc_bst;
     66 };
     67 
     68 int drsupiomatch(struct device *, struct cfdata *, void *);
     69 void drsupioattach(struct device *, struct device *, void *);
     70 int drsupprint(void *auxp, const char *);
     71 void drlptintack(void *);
     72 
     73 struct cfattach drsupio_ca = {
     74 	sizeof(struct drsupio_softc), drsupiomatch, drsupioattach
     75 };
     76 
     77 int
     78 drsupiomatch(struct device *parent, struct cfdata *cfp, void *auxp)
     79 {
     80 	static int drsupio_matched = 0;
     81 
     82 	/* Exactly one of us lives on the DraCo */
     83 	if (!is_draco() || !matchname(auxp, "drsupio") || drsupio_matched)
     84 		return 0;
     85 
     86 	drsupio_matched = 1;
     87 	return 1;
     88 }
     89 
     90 struct drsupio_devs {
     91 	char *name;
     92 	int off;
     93 	int arg;
     94 } drsupiodevs[] = {
     95 	{ "com", 0x3f8, 115200 * 16 },
     96 	{ "com", 0x2f8, 115200 * 16 },
     97 	{ "lpt", 0x278, (int)drlptintack },
     98 	{ "fdc", 0x3f0, 0 },
     99 	/* WD port? */
    100 	{ 0 }
    101 };
    102 
    103 void
    104 drsupioattach(struct device *parent, struct device *self, void *auxp)
    105 {
    106 	struct drsupio_softc *drsc;
    107 	struct drsupio_devs  *drsd;
    108 	struct drioct *ioct;
    109 	struct supio_attach_args supa;
    110 
    111 	drsc = (struct drsupio_softc *)self;
    112 	drsd = drsupiodevs;
    113 
    114 	if (parent)
    115 		printf("\n");
    116 
    117 	drsc->sc_bst.base = DRCCADDR + NBPG * DRSUPIOPG + 1;
    118 	drsc->sc_bst.absm = &amiga_bus_stride_4;
    119 
    120 	supa.supio_iot = &drsc->sc_bst;
    121 	supa.supio_ipl = 5;
    122 
    123 	while (drsd->name) {
    124 		supa.supio_name = drsd->name;
    125 		supa.supio_iobase = drsd->off;
    126 		supa.supio_arg = drsd->arg;
    127 		config_found(self, &supa, drsupprint); /* XXX */
    128 		++drsd;
    129 	}
    130 
    131 	drlptintack(0);
    132 	ioct = (struct drioct *)(DRCCADDR + NBPG * DRIOCTLPG);
    133 	ioct->io_status2 |= DRSTAT2_PARIRQENA;
    134 }
    135 
    136 void
    137 drlptintack(void *p)
    138 {
    139 	struct drioct *ioct;
    140 
    141 	(void)p;
    142 	ioct = (struct drioct *)(DRCCADDR + NBPG * DRIOCTLPG);
    143 
    144 	ioct->io_parrst = 0;	/* any value works */
    145 }
    146 
    147 int
    148 drsupprint(void *auxp, const char *pnp)
    149 {
    150 	struct supio_attach_args *supa;
    151 	supa = auxp;
    152 
    153 	if (pnp == NULL)
    154 		return(QUIET);
    155 
    156 	printf("%s at %s port 0x%02x",
    157 	    supa->supio_name, pnp, supa->supio_iobase);
    158 
    159 	return(UNCONF);
    160 }
    161