/*      $NetBSD: if_ne_neptune.c,v 1.21 2015/05/20 09:17:18 ozaki-r Exp $       */

/*-
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center.
*
* 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.
*
* 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 <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_ne_neptune.c,v 1.21 2015/05/20 09:17:18 ozaki-r Exp $");

#include "opt_inet.h"
#include "opt_ns.h"

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/errno.h>
#include <sys/syslog.h>
#include <sys/select.h>
#include <sys/device.h>

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

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

#include <machine/bus.h>

#include <dev/ic/dp8390reg.h>
#include <dev/ic/dp8390var.h>

#include <dev/ic/ne2000reg.h>
#include <dev/ic/ne2000var.h>

#include <arch/x68k/dev/neptunevar.h>

static int ne_neptune_match(device_t, cfdata_t, void *);
static void ne_neptune_attach(device_t, device_t, void *);

#define ne_neptune_softc ne2000_softc

CFATTACH_DECL_NEW(ne_neptune, sizeof(struct ne_neptune_softc),
   ne_neptune_match, ne_neptune_attach, NULL, NULL);

int
ne_neptune_match(device_t parent, cfdata_t match, void *aux)
{
       struct neptune_attach_args *na = aux;
       bus_space_tag_t nict = na->na_bst;
       bus_space_handle_t nich;
       bus_space_tag_t asict;
       bus_space_handle_t asich;
       int rv = 0;

       if (na->na_addr == NEPTUNECF_ADDR_DEFAULT)
               na->na_addr = 0x300;

       /* Make sure this is a valid NE[12]000 i/o address. */
       if ((na->na_addr & 0x1f) != 0)
               return (0);

       /* Map i/o space. */
       if (bus_space_map(nict, na->na_addr, NE2000_NPORTS*2, 0, &nich))
               return (0);

       asict = nict;
       if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
           NE2000_ASIC_NPORTS*2, &asich))
               goto out;

       /* Look for an NE2000-compatible card. */
       rv = ne2000_detect(nict, nich, asict, asich);

out:
       bus_space_unmap(nict, nich, NE2000_NPORTS);
       return (rv != 0) ? 1 : 0;
}

void
ne_neptune_attach(device_t parent, device_t self, void *aux)
{
       struct ne_neptune_softc *nsc = device_private(self);
       struct dp8390_softc *dsc = &nsc->sc_dp8390;
       struct neptune_attach_args *na = aux;
       bus_space_tag_t nict = na->na_bst;
       bus_space_handle_t nich;
       bus_space_tag_t asict = nict;
       bus_space_handle_t asich;
       const char *typestr;
       int netype;

       dsc->sc_dev = self;
       aprint_normal("\n");

       /* Map i/o space. */
       if (bus_space_map(nict, na->na_addr, NE2000_NPORTS*2, 0, &nich)) {
               aprint_error_dev(self, "can't map i/o space\n");
               return;
       }

       if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
           NE2000_ASIC_NPORTS*2, &asich)) {
               aprint_error_dev(self, "can't subregion i/o space\n");
               return;
       }

       dsc->sc_regt = nict;
       dsc->sc_regh = nich;

       nsc->sc_asict = asict;
       nsc->sc_asich = asich;

       /*
        * Detect it again, so we can print some information about the
        * interface.
        */
       netype = ne2000_detect(nict, nich, asict, asich);
       switch (netype) {
       case NE2000_TYPE_NE1000:
               typestr = "NE1000";
               break;

       case NE2000_TYPE_NE2000:
               typestr = "NE2000";
               break;

       case NE2000_TYPE_RTL8019:
               typestr = "NE2000 (RTL8019)";
               break;

       default:
               aprint_error_dev(self, "where did the card go?!\n");
               return;
       }

       aprint_normal_dev(self, "%s Ethernet\n", typestr);

       /* This interface is always enabled. */
       dsc->sc_enabled = 1;

       /*
        * Do generic NE2000 attach.  This will read the station address
        * from the EEPROM.
        */
       ne2000_attach(nsc, NULL);

       /* Establish the interrupt handler. */
       if (neptune_intr_establish(na->na_intr, "ne", dp8390_intr, dsc))
               aprint_error_dev(self,
                   "couldn't establish interrupt handler\n");
}

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