/*      $OpenBSD: if_bse_acpi.c,v 1.7 2026/02/22 18:44:41 mvs Exp $     */
/*
 * Copyright (c) 2020 Mark Kettenis
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

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

#include <machine/bus.h>
#include <machine/intr.h>

#include <net/if.h>
#include <net/if_media.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>

#include <dev/acpi/acpireg.h>
#include <dev/acpi/acpivar.h>
#include <dev/acpi/acpidev.h>
#include <dev/acpi/amltypes.h>
#include <dev/acpi/dsdt.h>

#include <dev/mii/miivar.h>
#include <dev/ic/bcmgenetvar.h>

struct bse_acpi_softc {
        struct genet_softc sc;
        struct acpi_softc *sc_acpi;
        struct aml_node *sc_node;
};

int     bse_acpi_match(struct device *, void *, void *);
void    bse_acpi_attach(struct device *, struct device *, void *);

const struct cfattach bse_acpi_ca = {
        sizeof(struct bse_acpi_softc), bse_acpi_match, bse_acpi_attach
};

const char *bse_hids[] = {
        "BCM6E4E",
        NULL
};

int
bse_acpi_match(struct device *parent, void *match, void *aux)
{
        struct acpi_attach_args *aaa = aux;
        struct cfdata *cf = match;

        if (aaa->aaa_naddr < 1 || aaa->aaa_nirq < 1)
                return 0;
        return acpi_matchhids(aaa, bse_hids, cf->cf_driver->cd_name);
}

void
bse_acpi_attach(struct device *parent, struct device *self, void *aux)
{
        struct bse_acpi_softc *sc = (struct bse_acpi_softc *)self;
        struct acpi_attach_args *aaa = aux;
        char phy_mode[16] = { 0 };
        int error;

        sc->sc_acpi = (struct acpi_softc *)parent;
        sc->sc_node = aaa->aaa_node;
        printf(" %s", sc->sc_node->name);

        printf(" addr 0x%llx/0x%llx", aaa->aaa_addr[0], aaa->aaa_size[0]);
        printf(" irq %d", aaa->aaa_irq[0]);

        sc->sc.sc_bst = aaa->aaa_bst[0];
        sc->sc.sc_dmat = aaa->aaa_dmat;

        if (bus_space_map(sc->sc.sc_bst, aaa->aaa_addr[0], aaa->aaa_size[0],
            0, &sc->sc.sc_bsh)) {
                printf(": can't map registers\n");
                return;
        }

        sc->sc.sc_ih = acpi_intr_establish(aaa->aaa_irq[0],
            aaa->aaa_irq_flags[0], IPL_NET | IPL_MPSAFE, genet_intr,
            sc, sc->sc.sc_dev.dv_xname);
        if (sc->sc.sc_ih == NULL) {
                printf(": can't establish interrupt\n");
                goto unmap;
        }

        /*
         * UEFI firmware initializes the hardware MAC address
         * registers.  Read them here before we reset the hardware.
         */
        genet_lladdr_read(&sc->sc, sc->sc.sc_lladdr);

        acpi_getprop(sc->sc_node, "phy-mode", phy_mode, sizeof(phy_mode));
        if (strcmp(phy_mode, "rgmii-id") == 0)
                sc->sc.sc_phy_mode = GENET_PHY_MODE_RGMII_ID;
        else if (strcmp(phy_mode, "rgmii-rxid") == 0)
                sc->sc.sc_phy_mode = GENET_PHY_MODE_RGMII_RXID;
        else if (strcmp(phy_mode, "rgmii-txid") == 0)
                sc->sc.sc_phy_mode = GENET_PHY_MODE_RGMII_TXID;
        else
                sc->sc.sc_phy_mode = GENET_PHY_MODE_RGMII;

        sc->sc.sc_phy_id = MII_PHY_ANY;
        error = genet_attach(&sc->sc);
        if (error)
                goto disestablish;

        return;

disestablish:
        acpi_intr_disestablish(sc->sc.sc_ih);
unmap:
        bus_space_unmap(sc->sc.sc_bst, sc->sc.sc_bsh, aaa->aaa_size[0]);
}