/*      $OpenBSD: lpt_ebus.c,v 1.12 2022/10/16 01:22:39 jsg Exp $       */
/*      $NetBSD: lpt_ebus.c,v 1.8 2002/03/01 11:51:00 martin Exp $      */

/*
 * Copyright (c) 1999, 2000 Matthew R. Green
 * 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 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.
 */

/*
 * NS Super I/O PC87332VLJ "lpt" to ebus attachment
 */

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

#include <machine/bus.h>

#include <sparc64/dev/ebusreg.h>
#include <sparc64/dev/ebusvar.h>

#include <dev/ic/lptvar.h>

struct lpt_ebus_softc {
        struct lpt_softc sc_lpt;
        bus_space_handle_t sc_ctrl;
};

int     lpt_ebus_match(struct device *, void *, void *);
void    lpt_ebus_attach(struct device *, struct device *, void *);

const struct cfattach lpt_ebus_ca = {
        sizeof(struct lpt_ebus_softc), lpt_ebus_match, lpt_ebus_attach
};

int
lpt_ebus_match(struct device *parent, void *match, void *aux)
{
        struct ebus_attach_args *ea = aux;

        if (!strcmp(ea->ea_name, "ecpp") ||
            !strcmp(ea->ea_name, "parallel"))
                return (1);
        return (0);
}

void
lpt_ebus_attach(struct device *parent, struct device *self, void *aux)
{
        struct lpt_ebus_softc *sc = (void *)self;
        struct ebus_attach_args *ea = aux;


        if (ebus_bus_map(ea->ea_memtag, 0,
            EBUS_PADDR_FROM_REG(&ea->ea_regs[0]), ea->ea_regs[0].size,
            0, 0, &sc->sc_lpt.sc_ioh) == 0) {
                sc->sc_lpt.sc_iot = ea->ea_memtag;
        } else if (ebus_bus_map(ea->ea_iotag, 0,
                    EBUS_PADDR_FROM_REG(&ea->ea_regs[0]), ea->ea_regs[0].size,
                    0, 0, &sc->sc_lpt.sc_ioh) == 0) {
                sc->sc_lpt.sc_iot = ea->ea_iotag;
        } else {
                printf(": can't map register space\n");
                return;
        }

        if (ebus_bus_map(sc->sc_lpt.sc_iot, 0,
            EBUS_PADDR_FROM_REG(&ea->ea_regs[1]), ea->ea_regs[1].size, 0, 0,
            &sc->sc_ctrl) != 0) {
                printf(": can't map control space\n");
                bus_space_unmap(sc->sc_lpt.sc_iot, sc->sc_lpt.sc_ioh,
                    ea->ea_regs[0].size);
                return;
        }

        sc->sc_lpt.sc_flags |= LPT_POLLED;
        printf(": polled");

        lpt_attach_common(&sc->sc_lpt);
}