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ioblix_zbus.c revision 1.1 
      1 /*-
      2  * Copyright (c) 2000 The NetBSD Foundation, Inc.
      3  * All rights reserved.
      4  *
      5  * This code is derived from software contributed to The NetBSD Foundation
      6  * by Ignatios Souvatzis.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *        This product includes software developed by the NetBSD
     19  *        Foundation, Inc. and its contributors.
     20  * 4. Neither the name of The NetBSD Foundation nor the names of its
     21  *    contributors may be used to endorse or promote products derived
     22  *    from this software without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     25  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     26  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     27  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     28  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     29  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     30  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     31  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     32  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     33  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     34  * POSSIBILITY OF SUCH DAMAGE.
     35  */
     36 
     37 /* IOBlix Zorro driver */
     38 /* XXX to be done: we need to probe the com clock speed! */
     39 
     40 #include <sys/types.h>
     41 
     42 #include <sys/conf.h>
     43 #include <sys/device.h>
     44 #include <sys/systm.h>
     45 #include <sys/param.h>
     46 
     47 #include <machine/bus.h>
     48 #include <machine/conf.h>
     49 
     50 #include <amiga/include/cpu.h>
     51 
     52 #include <amiga/amiga/device.h>
     53 #include <amiga/amiga/drcustom.h>
     54 
     55 #include <amiga/dev/supio.h>
     56 #include <amiga/dev/zbusvar.h>
     57 
     58 
     59 struct iobz_softc {
     60 	struct device sc_dev;
     61 	struct bus_space_tag sc_bst;
     62 };
     63 
     64 int iobzmatch __P((struct device *, struct cfdata *, void *));
     65 void iobzattach __P((struct device *, struct device *, void *));
     66 int iobzprint __P((void *auxp, const char *));
     67 
     68 struct cfattach iobl_zbus_ca = {
     69 	sizeof(struct iobz_softc), iobzmatch, iobzattach
     70 };
     71 
     72 int
     73 iobzmatch(parent, cfp, auxp)
     74 	struct device *parent;
     75 	struct cfdata *cfp;
     76 	void *auxp;
     77 {
     78 
     79 	struct zbus_args *zap;
     80 
     81 	zap = auxp;
     82 
     83 	if (zap->manid != 4711)
     84 		return (0);
     85 
     86 	if (zap->prodid != 1)
     87 		return (0);
     88 
     89 	return (1);
     90 }
     91 
     92 struct iobz_devs {
     93 	char *name;
     94 	unsigned off;
     95 	int arg;
     96 } iobzdevices[] = {
     97 	{ "com", 0x100, 24000000 },
     98 	{ "com", 0x108, 24000000 },
     99 	{ "com", 0x110, 24000000 },
    100 	{ "com", 0x118, 24000000 },
    101 	{ "lpt", 0x200, 0 },
    102 	{ "lpt", 0x300, 0 },
    103 	{ 0, 0, 0}
    104 };
    105 
    106 
    107 
    108 void
    109 iobzattach(parent, self, auxp)
    110 	struct device *parent, *self;
    111 	void *auxp;
    112 {
    113 	struct iobz_softc *iobzsc;
    114 	struct iobz_devs  *iobzd;
    115 	struct zbus_args *zap;
    116 	struct supio_attach_args supa;
    117 	extern const struct amiga_bus_space_methods amiga_bus_stride_16;
    118 	volatile u_int8_t *p;
    119 
    120 
    121 	iobzsc = (struct iobz_softc *)self;
    122 	zap = auxp;
    123 
    124 	if (parent)
    125 		printf("\n");
    126 
    127 	iobzsc->sc_bst.base = (u_long)zap->va;
    128 	iobzsc->sc_bst.absm = &amiga_bus_stride_16;
    129 
    130 	supa.supio_iot = &iobzsc->sc_bst;
    131 	supa.supio_ipl = 6;
    132 
    133 	iobzd = iobzdevices;
    134 
    135 	while (iobzd->name) {
    136 		supa.supio_name = iobzd->name;
    137 		supa.supio_iobase = iobzd->off;
    138 		supa.supio_arg = iobzd->arg;
    139 		config_found(self, &supa, iobzprint); /* XXX */
    140 		++iobzd;
    141 	}
    142 
    143 	p = (volatile u_int8_t *)zap->va + 2;
    144 	*p = ((*p) & 0x1F) | 0x80;
    145 }
    146 
    147 int
    148 iobzprint(auxp, pnp)
    149 	void *auxp;
    150 	const char *pnp;
    151 {
    152 	struct supio_attach_args *supa;
    153 	supa = auxp;
    154 
    155 	if (pnp == NULL)
    156 		return(QUIET);
    157 
    158 	printf("%s at %s port 0x%02x",
    159 	    supa->supio_name, pnp, supa->supio_iobase);
    160 
    161 	return(UNCONF);
    162 }
    163