/*	$NetBSD: if_fxp_cardbus.c,v 1.5 1999/12/12 17:46:37 thorpej 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 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
};

#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;
{
    /* should check CIS */
    struct cardbus_attach_args *ca = aux;
    
    if (CARDBUS_VENDOR(ca->ca_id) != CARDBUS_VENDOR_INTEL)
	return (0);

    switch (CARDBUS_PRODUCT(ca->ca_id)) {
    case CARDBUS_PRODUCT_INTEL_82557:
	return (1);
    }

    return (0);
}

static void
fxp_cardbus_attach(parent, self, aux)
     struct device *parent, *self;
     void *aux;
{
    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", __FUNCTION__);
    
    
    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);
}