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if_emac.c revision 1.1.2.1 
      1 /*	$NetBSD: if_emac.c,v 1.1.2.1 2002/06/23 17:39:39 jdolecek Exp $	*/
      2 
      3 /*
      4  * Copyright 2001 Wasabi Systems, Inc.
      5  * All rights reserved.
      6  *
      7  * Written by Simon Burge and Eduardo Horvath for Wasabi Systems, Inc.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *      This product includes software developed for the NetBSD Project by
     20  *      Wasabi Systems, Inc.
     21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
     22  *    or promote products derived from this software without specific prior
     23  *    written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
     29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     35  * POSSIBILITY OF SUCH DAMAGE.
     36  */
     37 
     38 #include "rnd.h"
     39 #include "bpfilter.h"
     40 
     41 #include <sys/param.h>
     42 #include <sys/systm.h>
     43 #include <sys/callout.h>
     44 #include <sys/mbuf.h>
     45 #include <sys/malloc.h>
     46 #include <sys/kernel.h>
     47 #include <sys/socket.h>
     48 #include <sys/ioctl.h>
     49 #include <sys/errno.h>
     50 #include <sys/device.h>
     51 #include <sys/queue.h>
     52 
     53 #if NRND > 0
     54 #include <sys/rnd.h>
     55 #endif
     56 
     57 #include <net/if.h>
     58 #include <net/if_dl.h>
     59 #include <net/if_media.h>
     60 #include <net/if_ether.h>
     61 
     62 #if NBPFILTER > 0
     63 #include <net/bpf.h>
     64 #endif
     65 
     66 #include <machine/autoconf.h>
     67 #include <machine/bus.h>
     68 #include <machine/walnut.h>								/* XXX - this file shouldn't depend on board-data */
     69 
     70 #include <dev/mii/mii.h>
     71 #include <dev/mii/miivar.h>
     72 
     73 struct emac_softc {
     74 	struct device sc_dev;		/* generic device information */
     75 	bus_space_tag_t sc_st;		/* bus space tag */
     76 	bus_space_handle_t sc_sh;	/* bus space handle */
     77 	bus_dma_tag_t sc_dmat;		/* bus DMA tag */
     78 	struct ethercom sc_ethercom;	/* ethernet common data */
     79 	void *sc_sdhook;		/* shutdown hook */
     80 };
     81 
     82 static int	emac_match(struct device *, struct cfdata *, void *);
     83 static void	emac_attach(struct device *, struct device *, void *);
     84 static int	emac_intr(void *);
     85 
     86 struct cfattach emac_ca = {
     87 	sizeof(struct emac_softc), emac_match, emac_attach
     88 };
     89 
     90 static int probe_done = 0;
     91 
     92 static int
     93 emac_match(struct device *parent, struct cfdata *cf, void *aux)
     94 {
     95 
     96 	/*
     97 	 * XXX probe!
     98 	 * This won't work on some of the NP family processors that have
     99 	 * multiple EMACs
    100 	 */
    101 
    102 	if (probe_done)
    103 		return 0;
    104 
    105 	probe_done = 1;
    106 	return 1;
    107 }
    108 
    109 static void
    110 emac_attach(struct device *parent, struct device *self, void *aux)
    111 {
    112 	struct mainbus_attach_args *maa = aux;
    113 	struct emac_softc *sc = (struct emac_softc *)self;
    114 
    115 	sc->sc_st = galaxy_make_bus_space_tag(0, 0);
    116 	sc->sc_sh = maa->mb_addr;
    117 
    118 	printf(": 405GP EMAC\n");
    119 	printf("%s: Ethernet address %s\n", sc->sc_dev.dv_xname,
    120 	    ether_sprintf(board_data.mac_address_local));
    121 
    122 	intr_establish(maa->mb_irq, IST_LEVEL, IPL_NET, emac_intr, sc);
    123 	printf("%s: interrupting at irq %d\n", sc->sc_dev.dv_xname,
    124 		maa->mb_irq);
    125 }
    126 
    127 static int
    128 emac_intr(void *arg)
    129 {
    130 
    131 	printf("emac_intr: arg = %p\n", arg);	/* XXX */
    132 	return 0;
    133 }
    134