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/* $NetBSD: obio.c,v 1.8 2003/07/15 02:54:50 lukem Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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: obio.c,v 1.8 2003/07/15 02:54:50 lukem Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/extent.h>
#include <machine/bus.h>
#include <machine/pio.h>
#include <machine/intr.h>
#include <machine/platform.h>
#include <prep/dev/obiovar.h>
#include <dev/isa/isareg.h>
#include "wdc_obio.h"
static int obio_found = 0;
static int obio_match(struct device *, struct cfdata *, void *);
static void obio_attach(struct device *, struct device *, void *);
static int obio_print(void *, const char *);
static int obio_search(struct device *, struct cfdata *, void *);
CFATTACH_DECL(obio, sizeof(struct device),
obio_match, obio_attach, NULL, NULL);
extern struct cfdriver obio_cd;
static int
obio_match(struct device *parent, struct cfdata *cf, void *aux)
{
if (obio_found)
return 0;
return 1;
}
static void
obio_attach(struct device *parent, struct device *self, void *aux)
{
obio_found = 1;
printf("\n");
(void)config_search(obio_search, self, aux);
}
static int
obio_search(struct device *parent, struct cfdata *cf, void *aux)
{
struct obio_attach_args oa;
const char **p;
p = platform->obiodevs;
if (p == NULL)
return 0;
for (; *p != NULL; p++) {
if (strcmp(cf->cf_name, *p) == 0) {
oa.oa_iot = &prep_isa_io_space_tag;
oa.oa_memt = &prep_isa_mem_space_tag;
oa.oa_iobase = cf->cf_iobase;
oa.oa_iosize = cf->cf_iosize;
oa.oa_maddr = cf->cf_maddr;
oa.oa_msize = cf->cf_msize;
oa.oa_irq = cf->cf_irq == 2 ? 9 : cf->cf_irq;
if (config_match(parent, cf, &oa) > 0)
config_attach(parent, cf, &oa, obio_print);
}
}
return 0;
}
static int
obio_print(void *args, const char *name)
{
struct obio_attach_args *oa = args;
if (oa->oa_iosize)
aprint_normal(" port 0x%x", oa->oa_iobase);
if (oa->oa_iosize > 1)
aprint_normal("-0x%x", oa->oa_iobase + oa->oa_iosize - 1);
if (oa->oa_msize)
aprint_normal(" mem 0x%x", oa->oa_maddr);
if (oa->oa_msize > 1)
aprint_normal("-0x%x", oa->oa_maddr + oa->oa_msize - 1);
if (oa->oa_irq != IRQUNK)
aprint_normal(" irq %d", oa->oa_irq);
return (UNCONF);
}
/*
* Set up an interrupt handler to start being called.
*/
void *
obio_intr_establish(int irq, int type, int level, int (*ih_fun)(void *),
void *ih_arg)
{
return (void *)intr_establish(irq, type, level, ih_fun, ih_arg);
}
/*
* Deregister an interrupt handler.
*/
void
obio_intr_disestablish(void *arg)
{
intr_disestablish(arg);
}
/*
* obio bus resource mapping
*/
#if NWDC_OBIO > 0
static bus_space_handle_t wdc0_cmd;
static bus_space_handle_t wdc0_ctl;
static bus_space_handle_t wdc1_cmd;
static bus_space_handle_t wdc1_ctl;
#endif
void
obio_reserve_resource_map(void)
{
const char **p;
for (p = platform->obiodevs; *p != NULL; p++) {
#if NWDC_OBIO > 0
if (strcmp(*p, "wdc") == 0) {
bus_space_map(&prep_isa_io_space_tag, IO_WD1, 8,
0, &wdc0_cmd);
bus_space_map(&prep_isa_io_space_tag, IO_WD1 + 0x206, 1,
0, &wdc0_ctl);
bus_space_map(&prep_isa_io_space_tag, IO_WD2, 8,
0, &wdc1_cmd);
bus_space_map(&prep_isa_io_space_tag, IO_WD2 + 0x206, 1,
0, &wdc1_ctl);
}
#endif
}
}
void
obio_reserve_resource_unmap(void)
{
const char **p;
for (p = platform->obiodevs; *p != NULL; p++) {
#if NWDC_OBIO > 0
if (strcmp(*p, "wdc") == 0) {
bus_space_unmap(&prep_isa_io_space_tag, wdc0_cmd, 8);
bus_space_unmap(&prep_isa_io_space_tag, wdc0_ctl, 1);
bus_space_unmap(&prep_isa_io_space_tag, wdc1_cmd, 8);
bus_space_unmap(&prep_isa_io_space_tag, wdc1_ctl, 1);
}
#endif
}
}
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