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/* $OpenBSD: obio.c,v 1.1 2005/04/20 01:00:16 miod Exp $ */
/* OpenBSD: obio.c,v 1.16 2004/09/29 07:35:11 miod Exp */
/*
* Copyright (c) 1993, 1994 Theo de Raadt
* Copyright (c) 1995, 1997 Paul Kranenburg
* All rights reserved.
*
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <machine/autoconf.h>
#include <machine/cpu.h>
#include <machine/idt.h>
/* autoconfiguration driver */
static int obiomatch(struct device *, void *, void *);
static void obioattach(struct device *, struct device *, void *);
int obioprint(void *, const char *);
int obio_scan(struct device *, void *, void *);
struct cfattach obio_ca = {
sizeof(struct device), obiomatch, obioattach
};
struct cfdriver obio_cd = {
NULL, "obio", DV_DULL
};
/*
* A list of the on-board devices in the IDT systems. This is better than
* having people playing with locators in their kernel configuration
* files, and necessary because the device tree built by the PROM does not
* list all on-board devices (audio and floppy are missing).
*/
const struct {
char *devname;
paddr_t address;
int intr;
} obio_devices[] = {
{ "tod", TODCLOCK_BASE, -1 },
{ "nvram", NVRAM_BASE, -1 },
{ "zs", ZS0_BASE, 12 },
{ "zs", ZS1_BASE, 12 },
{ "fdc", FDC_BASE, 11 },
{ "audioamd", AUDIO_BASE, 13 },
{ "wdsc", SE_BASE + 0x20, 4 },
{ "le", SE_BASE + 0x30, 6 },
{ NULL, 0 }
};
int
obiomatch(parent, vcf, aux)
struct device *parent;
void *vcf, *aux;
{
register struct cfdata *cf = vcf;
register struct confargs *ca = aux;
register struct romaux *ra = &ca->ca_ra;
return (strcmp(cf->cf_driver->cd_name, ra->ra_name) == 0);
}
int
obioprint(args, obio)
void *args;
const char *obio;
{
register struct confargs *ca = args;
if (ca->ca_ra.ra_name == NULL)
ca->ca_ra.ra_name = "<unknown>";
if (obio)
printf("%s at %s", ca->ca_ra.ra_name, obio);
printf(" addr %p", ca->ca_ra.ra_paddr);
return (UNCONF);
}
void
obioattach(parent, self, args)
struct device *parent, *self;
void *args;
{
struct confargs *ca = args;
struct confargs oca;
int i;
if (self->dv_unit > 0) {
printf(" unsupported\n");
return;
}
printf("\n");
for (i = 0; obio_devices[i].devname != NULL; i++) {
/* fake a rom_reg */
bzero(&oca, sizeof oca);
oca.ca_ra.ra_paddr = (caddr_t)obio_devices[i].address;
oca.ca_ra.ra_vaddr = NULL;
oca.ca_ra.ra_len = 0;
oca.ca_ra.ra_nreg = 1;
oca.ca_ra.ra_iospace = 0;
oca.ca_ra.ra_intr[0].int_pri = obio_devices[i].intr;
oca.ca_ra.ra_intr[0].int_vec = -1;
oca.ca_ra.ra_nintr = oca.ca_ra.ra_intr[0].int_pri < 0 ? 0 : 1;
oca.ca_ra.ra_name = obio_devices[i].devname;
if (ca->ca_ra.ra_bp != NULL)
oca.ca_ra.ra_bp = ca->ca_ra.ra_bp + 1;
else
oca.ca_ra.ra_bp = NULL;
oca.ca_bustype = BUS_OBIO;
config_found(self, &oca, obioprint);
}
}
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