184 lines
5.4 KiB
C
184 lines
5.4 KiB
C
/* $NetBSD: aic_isa.c,v 1.14 2004/09/14 20:20:46 drochner Exp $ */
|
||
|
||
/*
|
||
* Copyright (c) 1994, 1995, 1996 Charles M. 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 M. 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.
|
||
*
|
||
* Copyright (c) 1994 Jarle Greipsland
|
||
* 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.
|
||
*/
|
||
|
||
/*
|
||
* Acknowledgements: Many of the algorithms used in this driver are
|
||
* inspired by the work of Julian Elischer (julian@tfs.com) and
|
||
* Charles Hannum (mycroft@duality.gnu.ai.mit.edu). Thanks a million!
|
||
*/
|
||
|
||
#include <sys/cdefs.h>
|
||
__KERNEL_RCSID(0, "$NetBSD: aic_isa.c,v 1.14 2004/09/14 20:20:46 drochner Exp $");
|
||
|
||
#include <sys/param.h>
|
||
#include <sys/systm.h>
|
||
#include <sys/kernel.h>
|
||
#include <sys/errno.h>
|
||
#include <sys/ioctl.h>
|
||
#include <sys/device.h>
|
||
#include <sys/buf.h>
|
||
#include <sys/proc.h>
|
||
#include <sys/user.h>
|
||
#include <sys/queue.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/ic/aic6360reg.h>
|
||
#include <dev/ic/aic6360var.h>
|
||
|
||
int aic_isa_probe __P((struct device *, struct cfdata *, void *));
|
||
|
||
struct aic_isa_softc {
|
||
struct aic_softc sc_aic; /* real "aic" softc */
|
||
|
||
/* ISA-specific goo. */
|
||
void *sc_ih; /* interrupt handler */
|
||
};
|
||
|
||
CFATTACH_DECL(aic_isa, sizeof(struct aic_isa_softc),
|
||
aic_isa_probe, aic_isa_attach, NULL, NULL);
|
||
|
||
|
||
/*
|
||
* INITIALIZATION ROUTINES (probe, attach ++)
|
||
*/
|
||
|
||
/*
|
||
* aic_isa_probe: probe for AIC6360 SCSI-controller
|
||
* returns non-zero value if a controller is found.
|
||
*/
|
||
int
|
||
aic_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;
|
||
int rv;
|
||
|
||
if (ia->ia_nio < 1)
|
||
return (0);
|
||
if (ia->ia_nirq < 1)
|
||
return (0);
|
||
|
||
if (ISA_DIRECT_CONFIG(ia))
|
||
return (0);
|
||
|
||
/* Disallow wildcarded i/o address. */
|
||
if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT)
|
||
return (0);
|
||
|
||
/* Disallow wildcarded IRQ. */
|
||
if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ)
|
||
return (0);
|
||
|
||
if (bus_space_map(iot, ia->ia_io[0].ir_addr, AIC_ISA_IOSIZE, 0, &ioh))
|
||
return (0);
|
||
|
||
AIC_TRACE(("aic_isa_probe: port 0x%x\n", ia->ia_iobase));
|
||
rv = aic_find(iot, ioh);
|
||
|
||
bus_space_unmap(iot, ioh, AIC_ISA_IOSIZE);
|
||
|
||
if (rv) {
|
||
ia->ia_nio = 1;
|
||
ia->ia_io[0].ir_size = AIC_ISA_IOSIZE;
|
||
|
||
ia->ia_nirq = 1;
|
||
|
||
ia->ia_niomem = 0;
|
||
ia->ia_ndrq = 0;
|
||
}
|
||
return rv;
|
||
}
|
||
|
||
void
|
||
aic_isa_attach(parent, self, aux)
|
||
struct device *parent, *self;
|
||
void *aux;
|
||
{
|
||
struct isa_attach_args *ia = aux;
|
||
struct aic_isa_softc *isc = (void *)self;
|
||
struct aic_softc *sc = &isc->sc_aic;
|
||
bus_space_tag_t iot = ia->ia_iot;
|
||
bus_space_handle_t ioh;
|
||
isa_chipset_tag_t ic = ia->ia_ic;
|
||
|
||
printf("\n");
|
||
|
||
if (bus_space_map(iot, ia->ia_io[0].ir_addr, AIC_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;
|
||
AIC_TRACE(("aic_isa_attach: port 0x%x\n", ia->ia_iobase));
|
||
if (!aic_find(iot, ioh)) {
|
||
printf("%s: aic_find failed", sc->sc_dev.dv_xname);
|
||
return;
|
||
}
|
||
|
||
isc->sc_ih = isa_intr_establish(ic, ia->ia_irq[0].ir_irq, IST_EDGE,
|
||
IPL_BIO, aicintr, sc);
|
||
if (isc->sc_ih == NULL) {
|
||
printf("%s: couldn't establish interrupt\n",
|
||
sc->sc_dev.dv_xname);
|
||
return;
|
||
}
|
||
|
||
aicattach(sc);
|
||
}
|