177 lines
4.6 KiB
C
177 lines
4.6 KiB
C
/* $NetBSD: ioblix_zbus.c,v 1.11 2003/01/06 13:04:58 wiz Exp $ */
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/*-
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* Copyright (c) 2000 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Ignatios Souvatzis.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: ioblix_zbus.c,v 1.11 2003/01/06 13:04:58 wiz Exp $");
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/* IOBlix Zorro driver */
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/* XXX to be done: we need to probe the com clock speed! */
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#include <sys/types.h>
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#include <sys/conf.h>
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#include <sys/device.h>
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#include <sys/systm.h>
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#include <sys/param.h>
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#include <machine/bus.h>
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#include <amiga/include/cpu.h>
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#include <amiga/amiga/device.h>
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#include <amiga/amiga/drcustom.h>
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#include <amiga/dev/supio.h>
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#include <amiga/dev/zbusvar.h>
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struct iobz_softc {
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struct device sc_dev;
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struct bus_space_tag sc_bst;
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};
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int iobzmatch(struct device *, struct cfdata *, void *);
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void iobzattach(struct device *, struct device *, void *);
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int iobzprint(void *auxp, const char *);
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void iobz_shutdown(void *);
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CFATTACH_DECL(iobl_zbus, sizeof(struct iobz_softc),
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iobzmatch, iobzattach, NULL, NULL);
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int
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iobzmatch(struct device *parent, struct cfdata *cfp, void *auxp)
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{
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struct zbus_args *zap;
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zap = auxp;
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if (zap->manid != 4711)
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return (0);
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if (zap->prodid != 1)
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return (0);
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return (1);
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}
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struct iobz_devs {
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char *name;
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unsigned off;
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int arg;
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} iobzdevices[] = {
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{ "com", 0x100, 24000000 }, /* XXX see below */
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{ "com", 0x108, 24000000 },
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{ "com", 0x110, 24000000 },
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{ "com", 0x118, 24000000 },
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{ "lpt", 0x200, 0 },
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{ "lpt", 0x300, 0 },
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{ 0, 0, 0}
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};
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#ifndef IOBZCLOCK
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#define IOBZCLOCK 22118400;
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#endif
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int iobzclock = IOBZCLOCK; /* patchable! */
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void
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iobzattach(struct device *parent, struct device *self, void *auxp)
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{
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struct iobz_softc *iobzsc;
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struct iobz_devs *iobzd;
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struct zbus_args *zap;
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struct supio_attach_args supa;
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extern const struct amiga_bus_space_methods amiga_bus_stride_16;
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volatile u_int8_t *p;
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iobzsc = (struct iobz_softc *)self;
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zap = auxp;
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if (parent)
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printf("\n");
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iobzsc->sc_bst.base = (u_long)zap->va;
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iobzsc->sc_bst.absm = &amiga_bus_stride_16;
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supa.supio_iot = &iobzsc->sc_bst;
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supa.supio_ipl = 6;
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iobzd = iobzdevices;
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while (iobzd->name) {
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supa.supio_name = iobzd->name;
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supa.supio_iobase = iobzd->off;
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supa.supio_arg = iobzclock /* XXX iobzd->arg */;
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config_found(self, &supa, iobzprint); /* XXX */
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++iobzd;
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}
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p = (volatile u_int8_t *)zap->va + 2;
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(void)shutdownhook_establish(iobz_shutdown, (void *)p);
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*p = ((*p) & 0x1F) | 0x80;
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}
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int
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iobzprint(void *auxp, const char *pnp)
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{
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struct supio_attach_args *supa;
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supa = auxp;
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if (pnp == NULL)
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return(QUIET);
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aprint_normal("%s at %s port 0x%02x",
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supa->supio_name, pnp, supa->supio_iobase);
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return(UNCONF);
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}
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/*
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* Disable board interrupts at shutdown time.
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*/
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void
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iobz_shutdown(void *p) {
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volatile int8_t *q;
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q = p;
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*q &= 0x1F;
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}
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