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/* $OpenBSD: isa.c,v 1.24 1997/12/25 12:06:47 downsj Exp $ */
/* $NetBSD: isa.c,v 1.85 1996/05/14 00:31:04 thorpej Exp $ */
/*-
* Copyright (c) 1993, 1994 Charles Hannum. 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Charles Hannum.
* 4. 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/kernel.h>
#include <sys/conf.h>
#include <sys/malloc.h>
#include <sys/device.h>
#include <sys/extent.h>
#include <machine/intr.h>
#include <dev/isa/isareg.h>
#include <dev/isa/isavar.h>
int isamatch __P((struct device *, void *, void *));
void isaattach __P((struct device *, struct device *, void *));
struct cfattach isa_ca = {
sizeof(struct isa_softc), isamatch, isaattach
};
struct cfdriver isa_cd = {
NULL, "isa", DV_DULL, 1
};
int
isamatch(parent, match, aux)
struct device *parent;
void *match, *aux;
{
struct cfdata *cf = match;
struct isabus_attach_args *iba = aux;
if (strcmp(iba->iba_busname, cf->cf_driver->cd_name))
return (0);
/* XXX check other indicators */
return (1);
}
void
isaattach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct isa_softc *sc = (struct isa_softc *)self;
struct isabus_attach_args *iba = aux;
isa_attach_hook(parent, self, iba);
printf("\n");
sc->sc_iot = iba->iba_iot;
sc->sc_memt = iba->iba_memt;
sc->sc_ic = iba->iba_ic;
/*
* Map port 0x84, which causes a 1.25us delay when read.
* We do this now, since several drivers need it.
* XXX this port doesn't exist on all ISA busses...
*/
if (bus_space_map(sc->sc_iot, 0x84, 1, 0, &sc->sc_delaybah))
panic("isaattach: can't map `delay port'"); /* XXX */
TAILQ_INIT(&sc->sc_subdevs);
config_scan(isascan, self);
}
int
isaprint(aux, isa)
void *aux;
const char *isa;
{
struct isa_attach_args *ia = aux;
if (ia->ia_iosize)
printf(" port 0x%x", ia->ia_iobase);
if (ia->ia_iosize > 1)
printf("-0x%x", ia->ia_iobase + ia->ia_iosize - 1);
if (ia->ia_msize)
printf(" iomem 0x%x", ia->ia_maddr);
if (ia->ia_msize > 1)
printf("-0x%x", ia->ia_maddr + ia->ia_msize - 1);
if (ia->ia_irq != IRQUNK)
printf(" irq %d", ia->ia_irq);
if (ia->ia_drq != DRQUNK)
printf(" drq %d", ia->ia_drq);
return (UNCONF);
}
void
isascan(parent, match)
struct device *parent;
void *match;
{
struct isa_softc *sc = (struct isa_softc *)parent;
struct device *dev = match;
struct cfdata *cf = dev->dv_cfdata;
struct isa_attach_args ia;
ia.ia_iot = sc->sc_iot;
ia.ia_memt = sc->sc_memt;
ia.ia_ic = sc->sc_ic;
ia.ia_iobase = cf->cf_loc[0];
ia.ia_iosize = 0x666;
ia.ia_maddr = cf->cf_loc[2];
ia.ia_msize = cf->cf_loc[3];
ia.ia_irq = cf->cf_loc[4] == 2 ? 9 : cf->cf_loc[4];
ia.ia_drq = cf->cf_loc[5];
ia.ia_delaybah = sc->sc_delaybah;
if (cf->cf_fstate == FSTATE_STAR) {
struct isa_attach_args ia2 = ia;
while ((*cf->cf_attach->ca_match)(parent, dev, &ia2) > 0) {
if (ia2.ia_iosize == 0x666) {
printf("%s: iosize not repaired by driver\n",
sc->sc_dev.dv_xname);
ia2.ia_iosize = 0;
}
config_attach(parent, dev, &ia2, isaprint);
dev = config_make_softc(parent, cf);
ia2 = ia;
isa_drq_alloc(sc, ia.ia_drq);
}
free(dev, M_DEVBUF);
return;
}
if ((*cf->cf_attach->ca_match)(parent, dev, &ia) > 0) {
config_attach(parent, dev, &ia, isaprint);
isa_drq_alloc(sc, ia.ia_drq);
} else
free(dev, M_DEVBUF);
}
char *
isa_intr_typename(type)
int type;
{
switch (type) {
case IST_NONE:
return ("none");
case IST_PULSE:
return ("pulsed");
case IST_EDGE:
return ("edge-triggered");
case IST_LEVEL:
return ("level-triggered");
default:
panic("isa_intr_typename: invalid type %d", type);
}
}
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