xref: /src/sys/arch/hppa/gsc/fdc_gsc.c

/*	$NetBSD: fdc_gsc.c,v 1.1.4.2 2014/05/18 17:45:11 rmind Exp $	*/

/*	$OpenBSD: fdc_gsc.c,v 1.1 1998/09/30 04:45:46 mickey Exp $	*/

/*
 * Copyright (c) 1998 Michael Shalayeff
 * 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.
 *
 * 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 OR HIS RELATIVES 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 MIND, 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>
__KERNEL_RCSID(0, "$NetBSD: fdc_gsc.c,v 1.1.4.2 2014/05/18 17:45:11 rmind Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>

#include <machine/iomod.h>
#include <sys/bus.h>
#include <machine/intr.h>
#include <machine/autoconf.h>

#include <dev/ic/fdreg.h>
#include <dev/ic/fdlink.h>

#include <hppa/dev/cpudevs.h>

/* controller driver configuration */
int fdc_gsc_probe(device_t, cfdata_t, void *);
void fdc_gsc_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(fdc_gsc, sizeof(struct fdc_softc),
    fdc_gsc_probe, fdc_gsc_attach, NULL, NULL);

int
fdc_gsc_probe(device_t parent, cfdata_t match, void *aux)
{
	struct confargs *ca = aux;
	bus_space_handle_t ioh;
	int rv;

	if (ca->ca_type.iodc_type != HPPA_TYPE_FIO ||
	    ca->ca_type.iodc_sv_model != HPPA_FIO_GPCFD)
		return 0;

	/* Map the i/o space. */
	if (bus_space_map(ca->ca_iot, ca->ca_hpa, IOMOD_HPASIZE, 0, &ioh))
		return 0;

	rv = fdcprobe1(ca->ca_iot, ioh | IOMOD_DEVOFFSET);
	bus_space_unmap(ca->ca_iot, ioh, IOMOD_HPASIZE);
	return rv;
}

void
fdc_gsc_attach(device_t parent, device_t self, void *aux)
{
	struct fdc_softc *sc = device_private(self);
	bus_space_handle_t ioh;
	struct confargs *ca = aux;

	sc->sc_dev = self;

	/* Re-map the I/O space. */
	if (bus_space_map(ca->ca_iot, ca->ca_hpa, IOMOD_HPASIZE, 0, &ioh)) {
		aprint_error(": can't map I/O ports\n");
		return;
	}

	ioh |= IOMOD_DEVOFFSET;
	sc->sc_iot = ca->ca_iot;
	sc->sc_ioh = ioh;
	sc->sc_ioh_ctl = ioh + FDCTL_OFFSET;

	fdc_attach_subr(sc);
}