/*      $NetBSD: opl_isa.c,v 1.23 2022/09/24 23:21:59 thorpej Exp $     */

/*-
 * Copyright (c) 1999, 2008 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Lennart Augustsson, and by Andrew Doran.
 *
 * 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 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>
__KERNEL_RCSID(0, "$NetBSD: opl_isa.c,v 1.23 2022/09/24 23:21:59 thorpej Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <sys/conf.h>
#include <sys/select.h>
#include <sys/audioio.h>
#include <sys/midiio.h>

#include <sys/bus.h>

#include <dev/audio/audio_if.h>
#include <dev/midi_if.h>

#include <dev/ic/oplreg.h>
#include <dev/ic/oplvar.h>

#include <dev/isa/isavar.h>

#define OPL_SIZE 4

int     opl_isa_match(device_t, cfdata_t, void *);
void    opl_isa_attach(device_t, device_t, void *);

struct opl_isa_softc {
        struct opl_softc        sc_opl;
        kmutex_t                sc_lock;
};

CFATTACH_DECL_NEW(opl_isa, sizeof(struct opl_isa_softc),
    opl_isa_match, opl_isa_attach, NULL, NULL);

int
opl_isa_match(device_t parent, cfdata_t match, void *aux)
{
        struct isa_attach_args *ia = aux;
        bus_space_handle_t ioh;
        int r;

        if (ia->ia_nio < 1)
                return (0);

        if (ISA_DIRECT_CONFIG(ia))
                return (0);

        if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT)
                return (0);

        if (bus_space_map(ia->ia_iot, ia->ia_io[0].ir_addr, OPL_SIZE, 0, &ioh))
                return (0);
        r = opl_match(ia->ia_iot, ioh, 0);
        bus_space_unmap(ia->ia_iot, ioh, OPL_SIZE);
        if (r != 0) {
                ia->ia_nio = 1;
                ia->ia_io[0].ir_size = OPL_SIZE;

                ia->ia_nirq = 0;
                ia->ia_niomem = 0;
                ia->ia_ndrq = 0;
        }
        return (r);
}

void
opl_isa_attach(device_t parent, device_t self, void *aux)
{
        struct opl_softc *sc = device_private(self);
        struct opl_isa_softc *isa = device_private(self);
        struct isa_attach_args *ia = aux;

        sc->dev = self;
        sc->iot = ia->ia_iot;

        if (bus_space_map(sc->iot, ia->ia_io[0].ir_addr, OPL_SIZE,
            0, &sc->ioh)) {
                aprint_error("opl_isa_attach: bus_space_map failed\n");
                return;
        }
        sc->offs = 0;
        sc->lock = &isa->sc_lock;
        mutex_init(&isa->sc_lock, MUTEX_DEFAULT, IPL_NONE);

        opl_attach(sc);
}