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/* $NetBSD: ioblix_zbus.c,v 1.21 2021/08/07 16:18:41 thorpej Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Ignatios Souvatzis.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ioblix_zbus.c,v 1.21 2021/08/07 16:18:41 thorpej Exp $");
/* IOBlix Zorro driver */
/* XXX to be done: we need to probe the com clock speed! */
#include <sys/types.h>
#include <sys/device.h>
#include <sys/conf.h>
#include <sys/systm.h>
#include <sys/param.h>
#include <sys/bus.h>
#include <amiga/include/cpu.h>
#include <amiga/amiga/device.h>
#include <amiga/amiga/drcustom.h>
#include <amiga/dev/supio.h>
#include <amiga/dev/zbusvar.h>
#include "opt_iobzclock.h"
struct iobz_softc {
struct bus_space_tag sc_bst;
};
int iobzmatch(device_t, cfdata_t, void *);
void iobzattach(device_t, device_t, void *);
int iobzprint(void *, const char *);
void iobz_shutdown(void *);
CFATTACH_DECL_NEW(iobl_zbus, sizeof(struct iobz_softc),
iobzmatch, iobzattach, NULL, NULL);
int
iobzmatch(device_t parent, cfdata_t cf, void *aux)
{
struct zbus_args *zap;
zap = aux;
if (zap->manid != 4711)
return (0);
if (zap->prodid != 1)
return (0);
return (1);
}
struct iobz_devs {
const char *name;
unsigned off;
int arg;
} iobzdevices[] = {
{ "com", 0x108, 24000000 }, /* XXX see below */
{ "com", 0x100, 24000000 },
{ "com", 0x118, 24000000 },
{ "com", 0x110, 24000000 },
{ "lpt", 0x200, 0 },
{ "lpt", 0x300, 0 },
{ 0, 0, 0}
};
#ifndef IOBZCLOCK
#define IOBZCLOCK 22118400;
#endif
int iobzclock = IOBZCLOCK; /* patchable! */
void
iobzattach(device_t parent, device_t self, void *aux)
{
struct iobz_softc *iobzsc;
struct iobz_devs *iobzd;
struct zbus_args *zap;
struct supio_attach_args supa;
extern const struct amiga_bus_space_methods amiga_bus_stride_16;
volatile u_int8_t *p;
iobzsc = device_private(self);
zap = aux;
if (parent)
printf("\n");
iobzsc->sc_bst.base = (u_long)zap->va;
iobzsc->sc_bst.absm = &amiga_bus_stride_16;
supa.supio_iot = &iobzsc->sc_bst;
supa.supio_ipl = 6;
iobzd = iobzdevices;
while (iobzd->name) {
supa.supio_name = iobzd->name;
supa.supio_iobase = iobzd->off;
supa.supio_arg = iobzd->arg ? iobzclock : 0 /* XXX iobzd->arg */;
config_found(self, &supa, iobzprint, CFARGS_NONE); /* XXX */
++iobzd;
}
p = (volatile u_int8_t *)zap->va + 2;
(void)shutdownhook_establish(iobz_shutdown, __UNVOLATILE(p));
*p = ((*p) & 0x1F) | 0x80;
}
int
iobzprint(void *aux, const char *pnp)
{
struct supio_attach_args *supa;
supa = aux;
if (pnp == NULL)
return(QUIET);
aprint_normal("%s at %s port 0x%02x",
supa->supio_name, pnp, supa->supio_iobase);
return(UNCONF);
}
/*
* Disable board interrupts at shutdown time.
*/
void
iobz_shutdown(void *p) {
volatile int8_t *q;
q = p;
*q &= 0x1F;
}
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