/*      $NetBSD: if_ne_mainbus.c,v 1.1 2011/02/19 10:46:28 kiyohara Exp $       */
/*
* Copyright (c) 2010 KIYOHARA Takashi
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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_mainbus.c,v 1.1 2011/02/19 10:46:28 kiyohara Exp $");

#include <sys/param.h>
#include <sys/bus.h>
#include <sys/device.h>
#include <sys/errno.h>

#include <machine/autoconf.h>
#include <machine/intr.h>
#include <machine/mmeye.h>

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

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

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

#include "locators.h"

static int ne_mainbus_match(device_t, cfdata_t , void *);
static void ne_mainbus_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(ne_mainbus, sizeof(struct ne2000_softc),
   ne_mainbus_match, ne_mainbus_attach, NULL, NULL);

static int
ne_mainbus_match(device_t parent, cfdata_t match, void *aux)
{
       struct mainbus_attach_args *ma = aux;
       bus_space_tag_t nict, asict;
       bus_space_handle_t nich, asich;
       int rv = 0;

       if (strcmp(ma->ma_name, match->cf_name) != 0)
               return 0;

       /* Disallow wildcarded values. */
       if (ma->ma_addr1 == MAINBUSCF_ADDR1_DEFAULT ||
           ma->ma_irq1 == MAINBUSCF_IRQ1_DEFAULT)
               return 0;

       /* Make sure this is a valid NE[12]000 i/o address. */
       if ((ma->ma_addr1 & 0x1f) != 0)
               return 0;

       /* Map i/o space. */
       nict = SH3_BUS_SPACE_PCMCIA_IO;
       if (bus_space_map(nict, ma->ma_addr1, NE2000_NPORTS, 0, &nich))
               return 0;

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

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

out:
       bus_space_unmap(nict, nich, NE2000_NPORTS);
       return rv;
}

void
ne_mainbus_attach(device_t parent, device_t self, void *aux)
{
       struct ne2000_softc *sc = device_private(self);
       struct dp8390_softc *dsc = &sc->sc_dp8390;
       struct mainbus_attach_args *ma = aux;
       bus_space_tag_t nict, asict;
       bus_space_handle_t nich, asich;
       int netype;
       const char *typestr;
       void *ih;

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

       /* Map i/o space. */
       nict = SH3_BUS_SPACE_PCMCIA_IO;
       if (bus_space_map(nict, ma->ma_addr1, NE2000_NPORTS, 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, &asich)) {
               aprint_error_dev(self, "can't subregion i/o space\n");
               return;
       }
       asict = nict;

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

       sc->sc_asict = asict;
       sc->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_RTL8019:
               typestr = "NE2000 (RTL8019)";
               break;

       case NE2000_TYPE_NE1000:
       case NE2000_TYPE_NE2000:
       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(sc, NULL);

       /* Establish the interrupt handler. */
       ih = mmeye_intr_establish(ma->ma_irq1, IST_LEVEL, IPL_NET,
           dp8390_intr, dsc);
       if (ih == NULL)
               aprint_error_dev(self,
                   "couldn't establish interrupt handler\n");
}