156 lines
4.5 KiB
C
156 lines
4.5 KiB
C
/* $NetBSD: aha_isa.c,v 1.11 1998/08/15 10:10:51 mycroft 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/types.h>
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/device.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <machine/intr.h>
|
|
|
|
#include <dev/scsipi/scsi_all.h>
|
|
#include <dev/scsipi/scsipi_all.h>
|
|
#include <dev/scsipi/scsiconf.h>
|
|
|
|
#include <dev/isa/isavar.h>
|
|
#include <dev/isa/isadmavar.h>
|
|
|
|
#include <dev/ic/ahareg.h>
|
|
#include <dev/ic/ahavar.h>
|
|
|
|
#define AHA_ISA_IOSIZE 4
|
|
|
|
int aha_isa_probe __P((struct device *, struct cfdata *, void *));
|
|
void aha_isa_attach __P((struct device *, struct device *, void *));
|
|
|
|
struct cfattach aha_isa_ca = {
|
|
sizeof(struct aha_softc), aha_isa_probe, aha_isa_attach
|
|
};
|
|
|
|
/*
|
|
* Check the slots looking for a board we recognise
|
|
* If we find one, note it's address (slot) and call
|
|
* the actual probe routine to check it out.
|
|
*/
|
|
int
|
|
aha_isa_probe(parent, match, aux)
|
|
struct device *parent;
|
|
struct cfdata *match;
|
|
void *aux;
|
|
{
|
|
struct isa_attach_args *ia = aux;
|
|
bus_space_tag_t iot = ia->ia_iot;
|
|
bus_space_handle_t ioh;
|
|
struct aha_probe_data apd;
|
|
int rv;
|
|
|
|
/* Disallow wildcarded i/o address. */
|
|
if (ia->ia_iobase == ISACF_PORT_DEFAULT)
|
|
return (0);
|
|
|
|
if (bus_space_map(iot, ia->ia_iobase, AHA_ISA_IOSIZE, 0, &ioh))
|
|
return (0);
|
|
|
|
rv = aha_find(iot, ioh, &apd);
|
|
|
|
bus_space_unmap(iot, ioh, AHA_ISA_IOSIZE);
|
|
|
|
if (rv) {
|
|
if (ia->ia_irq != -1 && ia->ia_irq != apd.sc_irq)
|
|
return (0);
|
|
if (ia->ia_drq != -1 && ia->ia_drq != apd.sc_drq)
|
|
return (0);
|
|
ia->ia_irq = apd.sc_irq;
|
|
ia->ia_drq = apd.sc_drq;
|
|
ia->ia_msize = 0;
|
|
ia->ia_iosize = AHA_ISA_IOSIZE;
|
|
}
|
|
return (rv);
|
|
}
|
|
|
|
/*
|
|
* Attach all the sub-devices we can find
|
|
*/
|
|
void
|
|
aha_isa_attach(parent, self, aux)
|
|
struct device *parent, *self;
|
|
void *aux;
|
|
{
|
|
struct isa_attach_args *ia = aux;
|
|
struct aha_softc *sc = (void *)self;
|
|
bus_space_tag_t iot = ia->ia_iot;
|
|
bus_space_handle_t ioh;
|
|
struct aha_probe_data apd;
|
|
isa_chipset_tag_t ic = ia->ia_ic;
|
|
int error;
|
|
|
|
printf("\n");
|
|
|
|
if (bus_space_map(iot, ia->ia_iobase, AHA_ISA_IOSIZE, 0, &ioh)) {
|
|
printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname);
|
|
return;
|
|
}
|
|
|
|
sc->sc_iot = iot;
|
|
sc->sc_ioh = ioh;
|
|
sc->sc_dmat = ia->ia_dmat;
|
|
if (!aha_find(iot, ioh, &apd)) {
|
|
printf("%s: aha_find failed\n", sc->sc_dev.dv_xname);
|
|
return;
|
|
}
|
|
|
|
if (apd.sc_drq != -1) {
|
|
if ((error = isa_dmacascade(ic, apd.sc_drq)) != 0) {
|
|
printf("%s: unable to cascade DRQ, error = %d\n",
|
|
sc->sc_dev.dv_xname, error);
|
|
return;
|
|
}
|
|
}
|
|
|
|
sc->sc_ih = isa_intr_establish(ic, apd.sc_irq, IST_EDGE, IPL_BIO,
|
|
aha_intr, sc);
|
|
if (sc->sc_ih == NULL) {
|
|
printf("%s: couldn't establish interrupt\n",
|
|
sc->sc_dev.dv_xname);
|
|
return;
|
|
}
|
|
|
|
aha_attach(sc, &apd);
|
|
}
|