NetBSD/sys/arch/alpha/sableio/fdc_sableio.c
thorpej f363b73f87 Add support for the AlphaServer 2100 (Sable) and the AlphaServer 2100A
(Lynx), written from scratch by me over a year ago, but never committed
to the tree because there was a bug I could never quite find.  I have
fixed a few problems in the code, but still don't know if that bug is
quite fixed.  Since I don't have access to the hardware directly, I'll
have to call for testers again.
2000-12-21 20:51:53 +00:00

139 lines
4.3 KiB
C

/* $NetBSD: fdc_sableio.c,v 1.1 2000/12/21 20:51:56 thorpej Exp $ */
/*-
* Copyright (c) 1999, 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe.
*
* 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> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: fdc_sableio.c,v 1.1 2000/12/21 20:51:56 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/callout.h>
#include <sys/device.h>
#include <sys/buf.h>
#if NRND > 0
#include <sys/rnd.h>
#endif
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/isa/isavar.h>
#include <dev/isa/isadmavar.h>
#include <dev/isa/fdreg.h>
#include <dev/isa/fdcvar.h>
#include <dev/pci/pcivar.h>
#include <alpha/sableio/sableiovar.h>
int fdc_sableio_match(struct device *, struct cfdata *, void *);
void fdc_sableio_attach(struct device *, struct device *, void *);
struct fdc_sableio_softc {
struct fdc_softc sc_fdc; /* real "fdc" softc */
bus_space_handle_t sc_baseioh; /* base I/O handle */
};
struct cfattach fdc_sableio_ca = {
sizeof(struct fdc_sableio_softc), fdc_sableio_match, fdc_sableio_attach
};
int
fdc_sableio_match(struct device *parent, struct cfdata *match, void *aux)
{
struct sableio_attach_args *sa = aux;
/* Always present. */
if (strcmp(sa->sa_name, match->cf_driver->cd_name) == 0)
return (1);
return (0);
}
void
fdc_sableio_attach(struct device *parent, struct device *self, void *aux)
{
struct fdc_softc *fdc = (void *) self;
struct fdc_sableio_softc *sfdc = (void *) self;
struct sableio_attach_args *sa = aux;
const char *intrstr;
printf("\n");
fdc->sc_iot = sa->sa_iot;
fdc->sc_ic = sa->sa_ic;
fdc->sc_drq = sa->sa_drq;
if (bus_space_map(fdc->sc_iot, sa->sa_ioaddr, 6 /* FDC_NPORT */, 0,
&sfdc->sc_baseioh)) {
printf("%s: unable to map I/O space\n", fdc->sc_dev.dv_xname);
return;
}
if (bus_space_subregion(fdc->sc_iot, sfdc->sc_baseioh, 2, 4,
&fdc->sc_ioh)) {
printf("%s: unable to subregion I/O space\n",
fdc->sc_dev.dv_xname);
return;
}
if (bus_space_map(fdc->sc_iot, sa->sa_ioaddr + fdctl + 2, 1, 0,
&fdc->sc_fdctlioh)) {
printf("%s: unable to map CTL I/O space\n",
fdc->sc_dev.dv_xname);
return;
}
intrstr = pci_intr_string(sa->sa_pc, sa->sa_sableirq[0]);
fdc->sc_ih = pci_intr_establish(sa->sa_pc, sa->sa_sableirq[0],
IPL_BIO, fdcintr, fdc);
if (fdc->sc_ih == NULL) {
printf("%s: unable to establish interrupt",
fdc->sc_dev.dv_xname);
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
return;
}
printf("%s: interrupting at %s\n", fdc->sc_dev.dv_xname, intrstr);
fdcattach(fdc);
}