/*-
 * Copyright (c) 2003 Jake Burkholder.
 * 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 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/systm.h>
#include <sys/bus.h>
#include <sys/cons.h>
#include <sys/consio.h>
#include <sys/kernel.h>
#include <sys/limits.h>
#include <sys/module.h>

#include <dev/ofw/ofw_bus.h>

#include <machine/bus.h>

#include <dev/syscons/syscons.h>

#define	SC_MD_MAX	8
#define	SC_MD_FLAGS	SC_AUTODETECT_KBD

static sc_softc_t sc_softcs[SC_MD_MAX];

static device_identify_t sc_identify;
static device_probe_t sc_probe;
static device_attach_t sc_attach;

static device_method_t sc_methods[] = {
	/* Device interface */
	DEVMETHOD(device_identify,	sc_identify),
	DEVMETHOD(device_probe,		sc_probe),
	DEVMETHOD(device_attach,	sc_attach),

	DEVMETHOD_END
};

static driver_t sc_driver = {
	SC_DRIVER_NAME,
	sc_methods,
	1,	/* no softc */
};

static devclass_t sc_devclass;

DRIVER_MODULE(sc, nexus, sc_driver, sc_devclass, 0, 0);

static void
sc_identify(driver_t *driver, device_t parent)
{

	/*
	 * Add with a priority guaranteed to make it last on
	 * the device list.
	 */
	BUS_ADD_CHILD(parent, INT_MAX, SC_DRIVER_NAME, 0);
}

static int
sc_probe(device_t dev)
{
	int unit;

	unit = device_get_unit(dev);
	if (strcmp(ofw_bus_get_name(dev), SC_DRIVER_NAME) != 0 ||
	    unit >= SC_MD_MAX)
		return (ENXIO);

	device_set_desc(dev, "System console");
	return (sc_probe_unit(unit, device_get_flags(dev) | SC_MD_FLAGS));
}

static int
sc_attach(device_t dev)
{

	return (sc_attach_unit(device_get_unit(dev),
	    device_get_flags(dev) | SC_MD_FLAGS));
}

int
sc_get_cons_priority(int *unit, int *flags)
{

	*unit = 0;
	*flags = 0;
	return (CN_INTERNAL);
}

int
sc_max_unit(void)
{

	return (devclass_get_maxunit(sc_devclass));
}

sc_softc_t *
sc_get_softc(int unit, int flags)
{
	sc_softc_t *sc;

	if (unit < 0 || unit >= SC_MD_MAX)
		return (NULL);
	sc = &sc_softcs[unit];
	sc->unit = unit;
	if ((sc->flags & SC_INIT_DONE) == 0) {
		sc->keyboard = -1;
		sc->adapter = -1;
		sc->cursor_char = SC_CURSOR_CHAR;
		sc->mouse_char = SC_MOUSE_CHAR;
	}
	return (sc);
}

void
sc_get_bios_values(bios_values_t *values)
{

}

int
sc_tone(int hz)
{

	return (0);
}