/*      $OpenBSD: if_dc_pci.c,v 1.79 2024/05/24 06:02:53 jsg Exp $      */

/*
 * Copyright (c) 1997, 1998, 1999
 *      Bill Paul <wpaul@ee.columbia.edu>.  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 Bill Paul.
 * 4. Neither the name of the author nor the names of any co-contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD
 * 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.
 *
 * $FreeBSD: src/sys/pci/if_dc.c,v 1.5 2000/01/12 22:24:05 wpaul Exp $
 */

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

#include <net/if.h>

#include <netinet/in.h>
#include <netinet/if_ether.h>

#include <net/if_media.h>

#include <dev/mii/miivar.h>

#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>

#ifdef __sparc64__
#include <dev/ofw/openfirm.h>
#endif

#ifndef __hppa__
#define DC_USEIOSPACE
#endif

#include <dev/ic/dcreg.h>

/*
 * Various supported device vendors/types and their names.
 */
struct dc_type dc_devs[] = {
        { PCI_VENDOR_DEC, PCI_PRODUCT_DEC_21140 },
        { PCI_VENDOR_DEC, PCI_PRODUCT_DEC_21142 },
        { PCI_VENDOR_DAVICOM, PCI_PRODUCT_DAVICOM_DM9009 },
        { PCI_VENDOR_DAVICOM, PCI_PRODUCT_DAVICOM_DM9100 },
        { PCI_VENDOR_DAVICOM, PCI_PRODUCT_DAVICOM_DM9102 },
        { PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_ADM9511 },
        { PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_ADM9513 },
        { PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_AL981 },
        { PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_AN983 },
        { PCI_VENDOR_ASIX, PCI_PRODUCT_ASIX_AX88140A },
        { PCI_VENDOR_MACRONIX, PCI_PRODUCT_MACRONIX_MX98713 },
        { PCI_VENDOR_MACRONIX, PCI_PRODUCT_MACRONIX_MX98715 },
        { PCI_VENDOR_MACRONIX, PCI_PRODUCT_MACRONIX_MX98727 },
        { PCI_VENDOR_COMPEX, PCI_PRODUCT_COMPEX_98713 },
        { PCI_VENDOR_LITEON, PCI_PRODUCT_LITEON_PNIC },
        { PCI_VENDOR_LITEON, PCI_PRODUCT_LITEON_PNICII },
        { PCI_VENDOR_ACCTON, PCI_PRODUCT_ACCTON_EN1217 },
        { PCI_VENDOR_ACCTON, PCI_PRODUCT_ACCTON_EN2242 },
        { PCI_VENDOR_CONEXANT, PCI_PRODUCT_CONEXANT_RS7112 },
        { PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_21145 },
        { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3CSHO100BTX },
        { PCI_VENDOR_MICROSOFT, PCI_PRODUCT_MICROSOFT_MN130 },
        { PCI_VENDOR_XIRCOM, PCI_PRODUCT_XIRCOM_X3201_3_21143 },
        { PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_AN985 },
        { PCI_VENDOR_ABOCOM, PCI_PRODUCT_ABOCOM_FE2500 },
        { PCI_VENDOR_ABOCOM, PCI_PRODUCT_ABOCOM_FE2500MX },
        { PCI_VENDOR_ABOCOM, PCI_PRODUCT_ABOCOM_PCM200 },
        { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DRP32TXD },
        { PCI_VENDOR_LINKSYS, PCI_PRODUCT_LINKSYS_PCMPC200 },
        { PCI_VENDOR_LINKSYS, PCI_PRODUCT_LINKSYS_PCM200 },
        { PCI_VENDOR_HAWKING, PCI_PRODUCT_HAWKING_PN672TX },
        { PCI_VENDOR_MICROSOFT, PCI_PRODUCT_MICROSOFT_MN120 },
        { 0, 0 }
};

int dc_pci_match(struct device *, void *, void *);
void dc_pci_attach(struct device *, struct device *, void *);
int dc_pci_detach(struct device *, int);

struct dc_pci_softc {
        struct dc_softc         psc_softc;
        pci_chipset_tag_t       psc_pc;
        bus_size_t              psc_mapsize;
};

/*
 * Probe for a 21143 or clone chip. Check the PCI vendor and device
 * IDs against our list and return a device name if we find a match.
 */
int
dc_pci_match(struct device *parent, void *match, void *aux)
{
        struct pci_attach_args *pa = (struct pci_attach_args *)aux;
        struct dc_type *t;

        /*
         * Support for the 21140 chip is experimental.  If it works for you,
         * that's great.  By default, this chip will use de.
         */
        if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_DEC &&
            PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21140)
                return (1);

        /*
         * The following chip revision doesn't seem to work so well with dc,
         * so let's have de handle it.  (de will return a match of 2)
         */
        if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_DEC &&
            PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21142 &&
            PCI_REVISION(pa->pa_class) == 0x21)
                return (1);

        for (t = dc_devs; t->dc_vid != 0; t++) {
                if ((PCI_VENDOR(pa->pa_id) == t->dc_vid) &&
                    (PCI_PRODUCT(pa->pa_id) == t->dc_did)) {
                        return (3);
                }
        }

        return (0);
}

/*
 * Attach the interface. Allocate softc structures, do ifmedia
 * setup and ethernet/BPF attach.
 */
void
dc_pci_attach(struct device *parent, struct device *self, void *aux)
{
        const char              *intrstr = NULL;
        pcireg_t                command;
        struct dc_pci_softc     *psc = (struct dc_pci_softc *)self;
        struct dc_softc         *sc = &psc->psc_softc;
        struct pci_attach_args  *pa = aux;
        pci_chipset_tag_t       pc = pa->pa_pc;
        pci_intr_handle_t       ih;
        int                     found = 0;

        psc->psc_pc = pa->pa_pc;
        sc->sc_dmat = pa->pa_dmat;

        pci_set_powerstate(pa->pa_pc, pa->pa_tag, PCI_PMCSR_STATE_D0);

        sc->dc_csid = pci_conf_read(pc, pa->pa_tag, PCI_SUBSYS_ID_REG);

        /*
         * Map control/status registers.
         */
#ifdef DC_USEIOSPACE
        if (pci_mapreg_map(pa, DC_PCI_CFBIO,
            PCI_MAPREG_TYPE_IO, 0,
            &sc->dc_btag, &sc->dc_bhandle, NULL, &psc->psc_mapsize, 0)) {
                printf(": can't map i/o space\n");
                return;
        }
#else
        if (pci_mapreg_map(pa, DC_PCI_CFBMA,
            PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
            &sc->dc_btag, &sc->dc_bhandle, NULL, &psc->psc_mapsize, 0)) {
                printf(": can't map mem space\n");
                return;
        }
#endif

        /* Allocate interrupt */
        if (pci_intr_map(pa, &ih)) {
                printf(": couldn't map interrupt\n");
                goto fail_1;
        }
        intrstr = pci_intr_string(pc, ih);
        sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, dc_intr, sc,
            self->dv_xname);
        if (sc->sc_ih == NULL) {
                printf(": couldn't establish interrupt");
                if (intrstr != NULL)
                        printf(" at %s", intrstr);
                printf("\n");
                goto fail_1;
        }
        printf(": %s", intrstr);

        /* Need this info to decide on a chip type. */
        sc->dc_revision = PCI_REVISION(pa->pa_class);

        /* Get the eeprom width, if possible */
        if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_LITEON &&
              PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LITEON_PNIC))
                ;       /* PNIC has non-standard eeprom */
        else if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_XIRCOM &&
              PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_XIRCOM_X3201_3_21143))
                ;       /* XIRCOM has non-standard eeprom */
        else
                dc_eeprom_width(sc);

        switch (PCI_VENDOR(pa->pa_id)) {
        case PCI_VENDOR_DEC:
                if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21140 ||
                    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21142) {
                        found = 1;
                        sc->dc_type = DC_TYPE_21143;
                        sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
                        sc->dc_flags |= DC_REDUCED_MII_POLL;
                        dc_read_srom(sc, sc->dc_romwidth);
                }
                break;
        case PCI_VENDOR_INTEL:
                if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_21145) {
                        found = 1;
                        sc->dc_type = DC_TYPE_21145;
                        sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
                        sc->dc_flags |= DC_REDUCED_MII_POLL;
                        dc_read_srom(sc, sc->dc_romwidth);
                }
                break;
        case PCI_VENDOR_DAVICOM:
                if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DAVICOM_DM9100 ||
                    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DAVICOM_DM9102 ||
                    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DAVICOM_DM9009) {
                        found = 1;
                        sc->dc_type = DC_TYPE_DM9102;
                        sc->dc_flags |= DC_TX_COALESCE|DC_TX_INTR_ALWAYS;
                        sc->dc_flags |= DC_REDUCED_MII_POLL|DC_TX_STORENFWD;
                        sc->dc_flags |= DC_TX_ALIGN;
                        sc->dc_pmode = DC_PMODE_MII;

                        /* Increase the latency timer value. */
                        command = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFLT);
                        command &= 0xFFFF00FF;
                        command |= 0x00008000;
                        pci_conf_write(pc, pa->pa_tag, DC_PCI_CFLT, command);
                }
                break;
        case PCI_VENDOR_ADMTEK:
        case PCI_VENDOR_3COM:
        case PCI_VENDOR_MICROSOFT:
                if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADMTEK_AL981) {
                        found = 1;
                        sc->dc_type = DC_TYPE_AL981;
                        sc->dc_flags |= DC_TX_USE_TX_INTR;
                        sc->dc_flags |= DC_TX_ADMTEK_WAR;
                        sc->dc_pmode = DC_PMODE_MII;
                        dc_read_srom(sc, sc->dc_romwidth);
                }
                if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADMTEK_ADM9511 ||
                    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADMTEK_ADM9513 ||
                    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADMTEK_AN983 ||
                    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_3COM_3CSHO100BTX ||
                    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MICROSOFT_MN130) {
                        found = 1;
                        sc->dc_type = DC_TYPE_AN983;
                        sc->dc_flags |= DC_TX_USE_TX_INTR;
                        sc->dc_flags |= DC_TX_ADMTEK_WAR;
                        sc->dc_flags |= DC_64BIT_HASH;
                        sc->dc_pmode = DC_PMODE_MII;
                        /* Don't read SROM for - auto-loaded on reset */
                }
                break;
        case PCI_VENDOR_MACRONIX:
        case PCI_VENDOR_ACCTON:
                if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ACCTON_EN2242) {
                        found = 1;
                        sc->dc_type = DC_TYPE_AN983;
                        sc->dc_flags |= DC_TX_USE_TX_INTR;
                        sc->dc_flags |= DC_TX_ADMTEK_WAR;
                        sc->dc_flags |= DC_64BIT_HASH;
                        sc->dc_pmode = DC_PMODE_MII;
                        /* Don't read SROM for - auto-loaded on reset */
                }
                if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MACRONIX_MX98713) {
                        found = 1;
                        if (sc->dc_revision < DC_REVISION_98713A)
                                sc->dc_type = DC_TYPE_98713;
                        if (sc->dc_revision >= DC_REVISION_98713A) {
                                sc->dc_type = DC_TYPE_98713A;
                                sc->dc_flags |= DC_21143_NWAY;
                        }
                        sc->dc_flags |= DC_REDUCED_MII_POLL;
                        sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
                }
                if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MACRONIX_MX98715 ||
                    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ACCTON_EN1217) {
                        found = 1;
                        if (sc->dc_revision >= DC_REVISION_98715AEC_C &&
                            sc->dc_revision < DC_REVISION_98725)
                                sc->dc_flags |= DC_128BIT_HASH;
                        sc->dc_type = DC_TYPE_987x5;
                        sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
                        sc->dc_flags |= DC_REDUCED_MII_POLL|DC_21143_NWAY;
                }
                if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MACRONIX_MX98727) {
                        found = 1;
                        sc->dc_type = DC_TYPE_987x5;
                        sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
                        sc->dc_flags |= DC_REDUCED_MII_POLL|DC_21143_NWAY;
                }
                break;
        case PCI_VENDOR_COMPEX:
                if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_COMPEX_98713) {
                        found = 1;
                        if (sc->dc_revision < DC_REVISION_98713A) {
                                sc->dc_type = DC_TYPE_98713;
                                sc->dc_flags |= DC_REDUCED_MII_POLL;
                        }
                        if (sc->dc_revision >= DC_REVISION_98713A)
                                sc->dc_type = DC_TYPE_98713A;
                        sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
                }
                break;
        case PCI_VENDOR_LITEON:
                if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LITEON_PNICII) {
                        found = 1;
                        sc->dc_type = DC_TYPE_PNICII;
                        sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
                        sc->dc_flags |= DC_REDUCED_MII_POLL|DC_21143_NWAY;
                        sc->dc_flags |= DC_128BIT_HASH;
                }
                if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LITEON_PNIC) {
                        found = 1;
                        sc->dc_type = DC_TYPE_PNIC;
                        sc->dc_flags |= DC_TX_STORENFWD|DC_TX_INTR_ALWAYS;
                        sc->dc_flags |= DC_PNIC_RX_BUG_WAR;
                        sc->dc_pnic_rx_buf = malloc(ETHER_MAX_DIX_LEN * 5,
                            M_DEVBUF, M_NOWAIT);
                        if (sc->dc_pnic_rx_buf == NULL)
                                panic("dc_pci_attach");
                        if (sc->dc_revision < DC_REVISION_82C169)
                                sc->dc_pmode = DC_PMODE_SYM;
                }
                break;
        case PCI_VENDOR_ASIX:
                if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ASIX_AX88140A) {
                        found = 1;
                        sc->dc_type = DC_TYPE_ASIX;
                        sc->dc_flags |= DC_TX_USE_TX_INTR|DC_TX_INTR_FIRSTFRAG;
                        sc->dc_flags |= DC_REDUCED_MII_POLL;
                        sc->dc_pmode = DC_PMODE_MII;
                }
                break;
        case PCI_VENDOR_CONEXANT:
                if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CONEXANT_RS7112) {
                        found = 1;
                        sc->dc_type = DC_TYPE_CONEXANT;
                        sc->dc_flags |= DC_TX_INTR_ALWAYS;
                        sc->dc_flags |= DC_REDUCED_MII_POLL;
                        sc->dc_pmode = DC_PMODE_MII;
                        dc_read_srom(sc, sc->dc_romwidth);
                }
                break;
        case PCI_VENDOR_XIRCOM:
                if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_XIRCOM_X3201_3_21143) {
                        found = 1;
                        sc->dc_type = DC_TYPE_XIRCOM;
                        sc->dc_flags |= DC_TX_INTR_ALWAYS;
                        sc->dc_flags |= DC_TX_COALESCE;
                        sc->dc_flags |= DC_TX_ALIGN;
                        sc->dc_pmode = DC_PMODE_MII;
                }
                break;
        }
        if (found == 0) {
                /* This shouldn't happen if probe has done its job... */
                printf(": unknown device: %x:%x\n",
                    PCI_VENDOR(pa->pa_id), PCI_PRODUCT(pa->pa_id));
                goto fail_2;
        }

        /* Save the cache line size. */
        if (DC_IS_DAVICOM(sc))
                sc->dc_cachesize = 0;
        else
                sc->dc_cachesize = pci_conf_read(pc, pa->pa_tag,
                    DC_PCI_CFLT) & 0xFF;

        /* Reset the adapter. */
        dc_reset(sc);

        /* Take 21143 out of snooze mode */
        if (DC_IS_INTEL(sc) || DC_IS_XIRCOM(sc)) {
                command = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFDD);
                command &= ~(DC_CFDD_SNOOZE_MODE|DC_CFDD_SLEEP_MODE);
                pci_conf_write(pc, pa->pa_tag, DC_PCI_CFDD, command);
        }

        /*
         * If we discover later (in dc_attach) that we have an
         * MII with no PHY, we need to have the 21143 drive the LEDs.
         * Except there are some systems like the NEC VersaPro NoteBook PC
         * which have no LEDs, and twiddling these bits has adverse effects
         * on them. (I.e. you suddenly can't get a link.)
         *
         * If mii_attach() returns an error, we leave the DC_TULIP_LEDS
         * bit set, else we clear it. Since our dc(4) driver is split into
         * bus-dependent and bus-independent parts, we must do set this bit
         * here while we are able to do PCI configuration reads.
         */
        if (DC_IS_INTEL(sc)) {
                if (pci_conf_read(pc, pa->pa_tag, DC_PCI_CSID) != 0x80281033)
                        sc->dc_flags |= DC_TULIP_LEDS;
        }

        /*
         * Try to learn something about the supported media.
         * We know that ASIX and ADMtek and Davicom devices
         * will *always* be using MII media, so that's a no-brainer.
         * The tricky ones are the Macronix/PNIC II and the
         * Intel 21143.
         */
        if (DC_IS_INTEL(sc))
                dc_parse_21143_srom(sc);
        else if (DC_IS_MACRONIX(sc) || DC_IS_PNICII(sc)) {
                if (sc->dc_type == DC_TYPE_98713)
                        sc->dc_pmode = DC_PMODE_MII;
                else
                        sc->dc_pmode = DC_PMODE_SYM;
        } else if (!sc->dc_pmode)
                sc->dc_pmode = DC_PMODE_MII;

#ifdef __sparc64__
        {
                extern void myetheraddr(u_char *);

                if (OF_getprop(PCITAG_NODE(pa->pa_tag), "local-mac-address",
                    sc->sc_arpcom.ac_enaddr, ETHER_ADDR_LEN) <= 0)
                        myetheraddr(sc->sc_arpcom.ac_enaddr);
                if (sc->sc_arpcom.ac_enaddr[0] == 0x00 &&
                    sc->sc_arpcom.ac_enaddr[1] == 0x03 &&
                    sc->sc_arpcom.ac_enaddr[2] == 0xcc)
                        sc->dc_flags |= DC_MOMENCO_BOTCH;
                sc->sc_hasmac = 1;
        }
#endif

#ifdef SRM_MEDIA
        sc->dc_srm_media = 0;

        /* Remember the SRM console media setting */
        if (DC_IS_INTEL(sc)) {
                command = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFDD);
                command &= ~(DC_CFDD_SNOOZE_MODE|DC_CFDD_SLEEP_MODE);
                switch ((command >> 8) & 0xff) {
                case 3: 
                        sc->dc_srm_media = IFM_10_T;
                        break;
                case 4: 
                        sc->dc_srm_media = IFM_10_T | IFM_FDX;
                        break;
                case 5: 
                        sc->dc_srm_media = IFM_100_TX;
                        break;
                case 6: 
                        sc->dc_srm_media = IFM_100_TX | IFM_FDX;
                        break;
                }
                if (sc->dc_srm_media)
                        sc->dc_srm_media |= IFM_ACTIVE | IFM_ETHER;
        }
#endif
        dc_attach(sc);

        return;

fail_2:
        pci_intr_disestablish(pc, sc->sc_ih);

fail_1:
        bus_space_unmap(sc->dc_btag, sc->dc_bhandle, psc->psc_mapsize);
}

int
dc_pci_detach(struct device *self, int flags)
{
        struct dc_pci_softc *psc = (void *)self;
        struct dc_softc *sc = &psc->psc_softc;

        if (sc->sc_ih != NULL)
                pci_intr_disestablish(psc->psc_pc, sc->sc_ih);  
        dc_detach(sc);
        bus_space_unmap(sc->dc_btag, sc->dc_bhandle, psc->psc_mapsize);

        return (0);
}

const struct cfattach dc_pci_ca = {
        sizeof(struct dc_softc), dc_pci_match, dc_pci_attach, dc_pci_detach,
        dc_activate
};