dev/cardbus/if_fxp_cardbus.c

/*	$NetBSD: if_fxp_cardbus.c,v 1.6 2000/02/09 22:15:59 joda Exp $	*/

/*
 * Copyright (c) 1999 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to
 * The NetBSD Foundation by Johan Danielsson.
 *
 * 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. 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 "opt_inet.h"
#include "opt_ns.h"
#include "bpfilter.h"
#include "rnd.h"

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/errno.h>
#include <sys/device.h>

#if NRND > 0
#include <sys/rnd.h>
#endif

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

#include <machine/endian.h>

#if NBPFILTER > 0
#include <net/bpf.h>
#endif

#ifdef INET
#include <netinet/in.h>
#include <netinet/if_inarp.h>
#endif

#ifdef NS
#include <netns/ns.h>
#include <netns/ns_if.h>
#endif

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

#include <dev/mii/miivar.h>

#include <dev/ic/i82557reg.h>
#include <dev/ic/i82557var.h>

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

#include <dev/cardbus/cardbusvar.h>
#include <dev/cardbus/cardbusdevs.h>

static int fxp_cardbus_match __P((struct device *, struct cfdata *, void *));
static void fxp_cardbus_attach __P((struct device *, struct device *, void *));
static int fxp_cardbus_detach __P((struct device *self, int flags));
static void fxp_cardbus_setup __P((struct fxp_softc *sc));
static int fxp_cardbus_enable __P((struct fxp_softc *sc));
static void fxp_cardbus_disable __P((struct fxp_softc *sc));

struct fxp_cardbus_softc {
    struct fxp_softc sc;
    cardbus_devfunc_t ct;
    pcireg_t base0_reg;
    pcireg_t base1_reg;
    bus_size_t size;
};

struct cfattach fxp_cardbus_ca = {
    sizeof(struct fxp_cardbus_softc), fxp_cardbus_match, fxp_cardbus_attach,
    fxp_cardbus_detach
};

#ifdef CBB_DEBUG
#define DPRINTF(X) printf X
#else
#define DPRINTF(X)
#endif

static int
fxp_cardbus_match(parent, match, aux)
     struct device *parent;
     struct cfdata *match;
     void *aux;
{
    struct cardbus_attach_args *ca = aux;

    if(CARDBUS_VENDOR(ca->ca_id) != CARDBUS_VENDOR_INTEL &&
       CARDBUS_PRODUCT(ca->ca_id) != CARDBUS_PRODUCT_INTEL_82557)
	return 0;
    return 1;
}

static void
fxp_cardbus_attach(parent, self, aux)
     struct device *parent, *self;
     void *aux;
{
    static const char __func__[] = "fxp_cardbus_attach";

    struct fxp_softc *sc = (struct fxp_softc*)self;
    struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc*)self;
    struct cardbus_attach_args *ca = aux;
    bus_space_tag_t iot, memt;
    bus_space_handle_t ioh, memh;

    bus_addr_t adr;
    bus_size_t size;

    csc->ct = ca->ca_ct;

    /*
     * Map control/status registers.
     */
    if(Cardbus_mapreg_map(csc->ct, CARDBUS_BASE0_REG,
			  PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT,
			  0, &memt, &memh, &adr, &size) == 0) {
	csc->base0_reg = adr;
	sc->sc_st = memt;
	sc->sc_sh = memh;
	csc->size = size;
    } else if(Cardbus_mapreg_map(csc->ct, CARDBUS_BASE1_REG,
				 PCI_MAPREG_TYPE_IO,
				 0, &iot, &ioh, &adr, &size) == 0) {
	csc->base1_reg = adr | 1;
	sc->sc_st = iot;
	sc->sc_sh = ioh;
	csc->size = size;
    } else
	panic("%s: failed to allocate mem and io space", __func__);


    if(ca->ca_cis.cis1_info[0] && ca->ca_cis.cis1_info[1])
	printf(": %s %s\n", ca->ca_cis.cis1_info[0], ca->ca_cis.cis1_info[1]);
    else
	printf("\n");
    sc->sc_dmat = ca->ca_dmat;
    sc->sc_enable = fxp_cardbus_enable;
    sc->sc_disable = fxp_cardbus_disable;
    sc->sc_enabled = 0;

    fxp_enable(sc);
    fxp_attach(sc);
    fxp_disable(sc);
}


static void
fxp_cardbus_setup(struct fxp_softc *sc)
{
    struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc*)sc;
    struct cardbus_softc *psc = (struct cardbus_softc *)sc->sc_dev.dv_parent;
    cardbus_chipset_tag_t cc = psc->sc_cc;
    cardbus_function_tag_t cf = psc->sc_cf;
    pcireg_t command;

    cardbustag_t tag = cardbus_make_tag(cc, cf, csc->ct->ct_bus,
					csc->ct->ct_dev, csc->ct->ct_func);

    command = Cardbus_conf_read(csc->ct, tag, CARDBUS_COMMAND_STATUS_REG);
    if(csc->base0_reg) {
	Cardbus_conf_write(csc->ct, tag,
			   CARDBUS_BASE0_REG, csc->base0_reg);
	(cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE);
	command |= CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_MASTER_ENABLE;

    } else if(csc->base1_reg) {
	Cardbus_conf_write(csc->ct, tag,
			   CARDBUS_BASE1_REG, csc->base1_reg);
	(cf->cardbus_ctrl)(cc, CARDBUS_IO_ENABLE);
	command |= (CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MASTER_ENABLE);
    }
    /* enable the card */
    Cardbus_conf_write(csc->ct, tag, CARDBUS_COMMAND_STATUS_REG, command);
}

static int
fxp_cardbus_enable(struct fxp_softc *sc)
{
    struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc*)sc;
    struct cardbus_softc *psc = (struct cardbus_softc *)sc->sc_dev.dv_parent;
    cardbus_chipset_tag_t cc = psc->sc_cc;
    cardbus_function_tag_t cf = psc->sc_cf;

    Cardbus_function_enable(csc->ct);

    fxp_cardbus_setup(sc);

    /* Map and establish the interrupt. */

    sc->sc_ih = cardbus_intr_establish(cc, cf, psc->sc_intrline, IPL_NET,
				       fxp_intr, sc);
    if (NULL == sc->sc_ih) {
	printf("%s: couldn't establish interrupt\n", sc->sc_dev.dv_xname);
	return 1;
    }

    printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname, psc->sc_intrline);

    return 0;
}

static void
fxp_cardbus_disable(struct fxp_softc *sc)
{
    struct cardbus_softc *psc = (struct cardbus_softc *)sc->sc_dev.dv_parent;
    cardbus_chipset_tag_t cc = psc->sc_cc;
    cardbus_function_tag_t cf = psc->sc_cf;

    cardbus_intr_disestablish(cc, cf, sc->sc_ih); /* remove intr handler */

    Cardbus_function_disable(((struct fxp_cardbus_softc*)sc)->ct);
}

static int
fxp_cardbus_detach(self, flags)
	struct device *self;
	int flags;
{
	struct fxp_softc *sc = (struct fxp_softc*)self;
	struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc*)self;
	struct cardbus_devfunc *ct = csc->ct;
	int rv;
	int reg;

#ifdef DIAGNOSTIC
	if (ct == NULL) {
		panic("%s: data structure lacks\n", sc->sc_dev.dv_xname);
	}
#endif

	rv = fxp_detach(sc);
	if (rv == 0) {
		/*
		 * Unhook the interrupt handler.
		 */
		cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, sc->sc_ih);

		/*
		 * release bus space and close window
		 */
		if(csc->base0_reg) {
			reg = CARDBUS_BASE0_REG;
		} else {
			reg = CARDBUS_BASE1_REG;
		}
		Cardbus_mapreg_unmap(ct, reg, sc->sc_st, sc->sc_sh, csc->size);
	}
	return (rv);
}