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ioblix_zbus.c revision 1.3 
      1 /* $NetBSD: ioblix_zbus.c,v 1.3 2001/03/10 23:55:29 is Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2000 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 /* IOBlix Zorro driver */
     40 /* XXX to be done: we need to probe the com clock speed! */
     41 
     42 #include <sys/types.h>
     43 
     44 #include <sys/conf.h>
     45 #include <sys/device.h>
     46 #include <sys/systm.h>
     47 #include <sys/param.h>
     48 
     49 #include <machine/bus.h>
     50 #include <machine/conf.h>
     51 
     52 #include <amiga/include/cpu.h>
     53 
     54 #include <amiga/amiga/device.h>
     55 #include <amiga/amiga/drcustom.h>
     56 
     57 #include <amiga/dev/supio.h>
     58 #include <amiga/dev/zbusvar.h>
     59 
     60 
     61 struct iobz_softc {
     62 	struct device sc_dev;
     63 	struct bus_space_tag sc_bst;
     64 };
     65 
     66 int iobzmatch __P((struct device *, struct cfdata *, void *));
     67 void iobzattach __P((struct device *, struct device *, void *));
     68 int iobzprint __P((void *auxp, const char *));
     69 
     70 struct cfattach iobl_zbus_ca = {
     71 	sizeof(struct iobz_softc), iobzmatch, iobzattach
     72 };
     73 
     74 int
     75 iobzmatch(parent, cfp, auxp)
     76 	struct device *parent;
     77 	struct cfdata *cfp;
     78 	void *auxp;
     79 {
     80 
     81 	struct zbus_args *zap;
     82 
     83 	zap = auxp;
     84 
     85 	if (zap->manid != 4711)
     86 		return (0);
     87 
     88 	if (zap->prodid != 1)
     89 		return (0);
     90 
     91 	return (1);
     92 }
     93 
     94 struct iobz_devs {
     95 	char *name;
     96 	unsigned off;
     97 	int arg;
     98 } iobzdevices[] = {
     99 	{ "com", 0x100, 24000000 },	/* XXX see below */
    100 	{ "com", 0x108, 24000000 },
    101 	{ "com", 0x110, 24000000 },
    102 	{ "com", 0x118, 24000000 },
    103 	{ "lpt", 0x200, 0 },
    104 	{ "lpt", 0x300, 0 },
    105 	{ 0, 0, 0}
    106 };
    107 
    108 #ifndef IOBZCLOCK
    109 #define IOBZCLOCK 22118400;
    110 #endif
    111 int iobzclock = IOBZCLOCK;		/* patchable! */
    112 
    113 void
    114 iobzattach(parent, self, auxp)
    115 	struct device *parent, *self;
    116 	void *auxp;
    117 {
    118 	struct iobz_softc *iobzsc;
    119 	struct iobz_devs  *iobzd;
    120 	struct zbus_args *zap;
    121 	struct supio_attach_args supa;
    122 	extern const struct amiga_bus_space_methods amiga_bus_stride_16;
    123 	volatile u_int8_t *p;
    124 
    125 
    126 	iobzsc = (struct iobz_softc *)self;
    127 	zap = auxp;
    128 
    129 	if (parent)
    130 		printf("\n");
    131 
    132 	iobzsc->sc_bst.base = (u_long)zap->va;
    133 	iobzsc->sc_bst.absm = &amiga_bus_stride_16;
    134 
    135 	supa.supio_iot = &iobzsc->sc_bst;
    136 	supa.supio_ipl = 6;
    137 
    138 	iobzd = iobzdevices;
    139 
    140 	while (iobzd->name) {
    141 		supa.supio_name = iobzd->name;
    142 		supa.supio_iobase = iobzd->off;
    143 		supa.supio_arg = iobzclock /* XXX iobzd->arg */;
    144 		config_found(self, &supa, iobzprint); /* XXX */
    145 		++iobzd;
    146 	}
    147 
    148 	p = (volatile u_int8_t *)zap->va + 2;
    149 	*p = ((*p) & 0x1F) | 0x80;
    150 }
    151 
    152 int
    153 iobzprint(auxp, pnp)
    154 	void *auxp;
    155 	const char *pnp;
    156 {
    157 	struct supio_attach_args *supa;
    158 	supa = auxp;
    159 
    160 	if (pnp == NULL)
    161 		return(QUIET);
    162 
    163 	printf("%s at %s port 0x%02x",
    164 	    supa->supio_name, pnp, supa->supio_iobase);
    165 
    166 	return(UNCONF);
    167 }
    168