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if_le.c revision 1.4 
      1 /*	$NetBSD: if_le.c,v 1.4 2003/07/15 01:29:21 lukem Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997, 1999
      5  *	Matthias Drochner.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  *
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 __KERNEL_RCSID(0, "$NetBSD: if_le.c,v 1.4 2003/07/15 01:29:21 lukem Exp $");
     31 
     32 #include "opt_inet.h"
     33 
     34 #include <sys/param.h>
     35 #include <sys/systm.h>
     36 #include <sys/socket.h>
     37 #include <sys/device.h>
     38 
     39 #include <net/if.h>
     40 #include <net/if_ether.h>
     41 #include <net/if_media.h>
     42 
     43 #ifdef INET
     44 #include <netinet/in.h>
     45 #include <netinet/if_inarp.h>
     46 #endif
     47 
     48 #include <machine/cpu.h>
     49 #include <machine/pte.h>
     50 
     51 #include <machine/autoconf.h>
     52 
     53 #include <dev/ic/lancereg.h>
     54 #include <dev/ic/lancevar.h>
     55 #include <dev/ic/am79900reg.h>
     56 #include <dev/ic/am79900var.h>
     57 
     58 #include <cesfic/cesfic/isr.h>
     59 
     60 int lematch __P((struct device *, struct cfdata *, void *));
     61 void leattach __P((struct device *, struct device *, void *));
     62 
     63 CFATTACH_DECL(le, sizeof(struct am79900_softc),
     64     lematch, leattach, NULL, NULL);
     65 
     66 int	leintr __P((void *));
     67 
     68 void lewrcsr __P((struct lance_softc *, u_int16_t, u_int16_t));
     69 u_int16_t lerdcsr __P((struct lance_softc *, u_int16_t));
     70 
     71 static char *lebase, *lemembase;
     72 
     73 void
     74 lewrcsr(sc, port, val)
     75 	struct lance_softc *sc;
     76 	u_int16_t port, val;
     77 {
     78 	*(volatile int *)(lebase + 4) = port;
     79 	*(volatile int *)(lebase + 0) = val;
     80 }
     81 
     82 u_int16_t
     83 lerdcsr(sc, port)
     84 	struct lance_softc *sc;
     85 	u_int16_t port;
     86 {
     87 	u_int16_t val;
     88 
     89 	*(volatile int *)(lebase + 4) = port;
     90 	val = *(volatile int *)(lebase + 0);
     91 	return (val);
     92 }
     93 
     94 int
     95 lematch(parent, match, aux)
     96 	struct device *parent;
     97 	struct cfdata *match;
     98 	void *aux;
     99 {
    100 	return (1);
    101 }
    102 
    103 /*
    104  * Interface exists: make available by filling in network interface
    105  * record.  System will initialize the interface when it is ready
    106  * to accept packets.
    107  */
    108 extern void sic_enable_int __P((int, int, int, int, int));
    109 static char hwa[6] = {0x00,0x80,0xa2,0x00,0x30,0x23};
    110 void
    111 leattach(parent, self, aux)
    112 	struct device *parent, *self;
    113 	void *aux;
    114 {
    115 	int i;
    116 	struct lance_softc *sc = (struct lance_softc *)self;
    117 
    118 	mainbus_map(0x4c000000, 0x10000, 0, (void **)&lemembase);
    119 	mainbus_map(0x48000000, 0x1000, 0, (void **)&lebase);
    120 
    121 	sc->sc_mem = lemembase;
    122 	sc->sc_conf3 = LE_C3_BSWP;
    123 	sc->sc_addr = 0x4c000000;
    124 	sc->sc_memsize = 64 * 1024;
    125 
    126 	if (cesfic_getetheraddr(sc->sc_enaddr)) {
    127 		/* fallback */
    128 		for (i = 0; i < sizeof(sc->sc_enaddr); i++) {
    129 			sc->sc_enaddr[i] = hwa[i];
    130 		}
    131 	}
    132 
    133 	sc->sc_copytodesc = lance_copytobuf_contig;
    134 	sc->sc_copyfromdesc = lance_copyfrombuf_contig;
    135 	sc->sc_copytobuf = lance_copytobuf_contig;
    136 	sc->sc_copyfrombuf = lance_copyfrombuf_contig;
    137 	sc->sc_zerobuf = lance_zerobuf_contig;
    138 
    139 	sc->sc_rdcsr = lerdcsr;
    140 	sc->sc_wrcsr = lewrcsr;
    141 	sc->sc_hwinit = NULL;
    142 
    143 	lewrcsr(sc, 4, 0x44);
    144 	am79900_config((struct am79900_softc *)sc);
    145 
    146 	/* Establish the interrupt handler. */
    147 	(void) isrlink(leintr, sc, 3, ISRPRI_NET);
    148 	sic_enable_int(17, 0, 1, 3, 0);
    149 }
    150 
    151 int
    152 leintr(arg)
    153 	void *arg;
    154 {
    155 	struct lance_softc *sc = arg;
    156 	u_int16_t isr4;
    157 
    158 	isr4 = lerdcsr(sc, 4);
    159 	if (isr4 & 0x08) {
    160 		lewrcsr(sc, 4, isr4);
    161 		return (1);
    162 	}
    163 
    164 	return (am79900_intr(sc));
    165 }
    166