/* $NetBSD: if_ath_arbus.c,v 1.23 2022/09/29 07:00:46 skrll Exp $ */

/*-
 * Copyright (c) 2006 Jared D. McNeill <jmcneill@invisible.ca>
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *        This product includes software developed by the NetBSD
 *        Foundation, Inc. and its contributors.
 * 4. Neither the name of The NetBSD Foundation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * 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: if_ath_arbus.c,v 1.23 2022/09/29 07:00:46 skrll Exp $");

#include <sys/param.h>
#include <sys/bus.h>
#include <sys/device.h>
#include <sys/errno.h>
#include <sys/intr.h>
#include <sys/kernel.h>
#include <sys/mbuf.h>
#include <sys/systm.h>

#include <net/if.h>
#include <net/if_media.h>
#include <net/if_ether.h>
#include <net/if_llc.h>
#include <net/if_arp.h>

#include <netinet/in.h>

#include <net80211/ieee80211_netbsd.h>
#include <net80211/ieee80211_var.h>

#include <mips/atheros/include/arbusvar.h>
#include <mips/atheros/include/platform.h>

#include <dev/pci/pcidevs.h>
#include <dev/ic/ath_netbsd.h>
#include <dev/ic/athvar.h>

#include <ah.h>
#include <ah_soc.h>     /* XXX really doesn't belong in hal */

struct ath_arbus_softc {
        struct ath_softc        sc_ath;
        bus_space_tag_t         sc_iot;
        bus_space_handle_t      sc_ioh;
        void                    *sc_ih;
        struct ar531x_config    sc_config;
};

static int      ath_arbus_match(device_t, cfdata_t, void *);
static void     ath_arbus_attach(device_t, device_t, void *);
static int      ath_arbus_detach(device_t, int);

CFATTACH_DECL_NEW(ath_arbus, sizeof(struct ath_arbus_softc),
    ath_arbus_match, ath_arbus_attach, ath_arbus_detach, NULL);

static int
ath_arbus_match(device_t parent, cfdata_t cf, void *opaque)
{
        struct arbus_attach_args *aa;

        aa = (struct arbus_attach_args *)opaque;
        if (strcmp(aa->aa_name, "ath") == 0)
                return 1;

        return 0;
}

static bool
ath_arbus_resume(device_t dv, const pmf_qual_t *qual)
{
        struct ath_arbus_softc *asc = device_private(dv);
        ath_resume(&asc->sc_ath);

        return true;
}


static void
ath_arbus_attach(device_t parent, device_t self, void *opaque)
{
        struct ath_arbus_softc *asc;
        struct ath_softc *sc;
        struct arbus_attach_args *aa;
        const char *name;
        prop_number_t prop;
        int rv;
        uint16_t devid;

        asc = device_private(self);
        sc = &asc->sc_ath;
        sc->sc_dev = self;
        aa = (struct arbus_attach_args *)opaque;

        prop = prop_dictionary_get(device_properties(sc->sc_dev),
            "wmac-rev");
        if (prop == NULL) {
                printf(": unable to get wmac-rev property\n");
                return;
        }
        KDASSERT(prop_object_type(prop) == PROP_TYPE_NUMBER);

        devid = (uint16_t)prop_number_integer_value(prop);
        name = ath_hal_probe(PCI_VENDOR_ATHEROS, devid);

        printf(": %s\n", name ? name : "Unknown AR531X WLAN");

        asc->sc_iot = aa->aa_bst;
        rv = bus_space_map(asc->sc_iot, aa->aa_addr, aa->aa_size, 0,
            &asc->sc_ioh);
        if (rv) {
                aprint_error_dev(self, "unable to map registers\n");
                return;
        }
        /*
         * Setup HAL configuration state for use by the driver.
         */
        rv = atheros_get_board_config(&asc->sc_config);
        if (rv) {
                aprint_error_dev(self, "unable to locate board configuration\n");
                return;
        }
        asc->sc_config.unit = device_unit(sc->sc_dev);
        asc->sc_config.tag = asc->sc_iot;

        /* NB: the HAL expects the config state passed as the tag */
        sc->sc_st = (HAL_BUS_TAG) &asc->sc_config;
        sc->sc_sh = (HAL_BUS_HANDLE) asc->sc_ioh;
        sc->sc_dmat = aa->aa_dmat;

        asc->sc_ih = arbus_intr_establish(aa->aa_cirq, aa->aa_mirq, ath_intr,
            sc);
        if (asc->sc_ih == NULL) {
                aprint_error_dev(self, "couldn't establish interrupt\n");
                return;
        }

        //ATH_LOCK_INIT(sc);

        if (!pmf_device_register(self, NULL, ath_arbus_resume))
                aprint_error_dev(self, "couldn't establish power handler\n");
        else
                pmf_class_network_register(self, &sc->sc_if);

        if (ath_attach(devid, sc) != 0) {
                aprint_error_dev(self, "ath_attach failed\n");
                goto err;
        }

        return;

err:
        arbus_intr_disestablish(asc->sc_ih);
}

static int
ath_arbus_detach(device_t self, int flags)
{
        struct ath_arbus_softc *asc = device_private(self);

        ath_detach(&asc->sc_ath);
        arbus_intr_disestablish(asc->sc_ih);

        return (0);
}