/*
 * Copyright 2009, Colin Günther, coling@gmx.de. All rights reserved.
 * Distributed under the terms of the MIT License.
 */


#include <sys/bus.h>
#include <sys/kernel.h>

#include <net/if.h>
#include <net/if_media.h>

#include <net80211/ieee80211_var.h>

#include <dev/ath/if_athvar.h>


HAIKU_FBSD_WLAN_DRIVER_GLUE(atheroswifi, if_ath_pci, pci)
NO_HAIKU_FBSD_MII_DRIVER();
HAIKU_DRIVER_REQUIREMENTS(FBSD_WLAN);


int
HAIKU_CHECK_DISABLE_INTERRUPTS(device_t dev)
{
        struct ath_softc* sc = (struct ath_softc*)device_get_softc(dev);
        struct ath_hal* ah = sc->sc_ah;
        HAL_INT intr_status;

        if (sc->sc_invalid) {
                // The hardware is not ready/present, don't touch anything.
                // Note this can happen early on if the IRQ is shared.
                return 0;
        }

        if (!ath_hal_intrpend(ah)) {
                // shared irq, not for us
                return 0;
        }

         // We have to save the isr status right now.
         // Some devices don't like having the interrupt disabled
         // before accessing the isr status.
         //
         // Those devices return status 0, when status access
         // occurs after disabling the interrupts with ath_hal_intrset.
         //
         // Note: Haiku's pcnet driver uses the same technique of
         //       appending a sc_lastisr field.
        ath_hal_getisr(ah, &intr_status);
        atomic_set((int32*)&sc->sc_intr_status, intr_status);

        ath_hal_intrset(ah, 0);
                // disable further intr's

        return 1;
}


void
HAIKU_REENABLE_INTERRUPTS(device_t dev)
{
        struct ath_softc* sc = (struct ath_softc*)device_get_softc(dev);
        struct ath_hal* ah = sc->sc_ah;

        ath_hal_intrset(ah, sc->sc_imask);
}