freebsd-dev/sys/pc98/cbus/fdc_cbus.c

/*
 * Copyright (c) 2004 Yoshihiro TAKAHASHI
 * 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,
 *    without modification, immediately at the beginning of the file.
 * 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 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 AUTHOR 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>
__FBSDID("$FreeBSD$");

#include <sys/param.h>
#include <sys/bio.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/rman.h>
#include <sys/systm.h>

#include <machine/bus.h>

#include <pc98/pc98/fdcvar.h>
#include <pc98/pc98/fdreg.h>

#include <isa/isavar.h>
#include <pc98/pc98/pc98.h>

static int
fdc_cbus_probe(device_t dev)
{
	int	error;
	struct	fdc_data *fdc;

	fdc = device_get_softc(dev);
	fdc->fdc_dev = dev;

	/* Check pnp ids */
	if (isa_get_vendorid(dev))
		return (ENXIO);

	/* Attempt to allocate our resources for the duration of the probe */
	error = fdc_alloc_resources(fdc);
	if (!error)
		error = fdc_initial_reset(fdc);

	fdc_release_resources(fdc);
	return (error);
}

static device_method_t fdc_methods[] = {
	/* Device interface */
	DEVMETHOD(device_probe,		fdc_cbus_probe),
	DEVMETHOD(device_attach,	fdc_attach),
	DEVMETHOD(device_detach,	fdc_detach),
	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
	DEVMETHOD(device_suspend,	bus_generic_suspend),
	DEVMETHOD(device_resume,	bus_generic_resume),

	/* Bus interface */
	DEVMETHOD(bus_print_child,	fdc_print_child),
	DEVMETHOD(bus_read_ivar,	fdc_read_ivar),
	DEVMETHOD(bus_write_ivar,       fdc_write_ivar),
	/* Our children never use any other bus interface methods. */

	{ 0, 0 }
};

static driver_t fdc_driver = {
	"fdc",
	fdc_methods,
	sizeof(struct fdc_data)
};

DRIVER_MODULE(fdc, isa, fdc_driver, fdc_devclass, 0, 0);