sys/arch/cesfic/dev/if_le.c

   1 /*      $NetBSD: if_le.c,v 1.6 2005/12/11 12:17:05 christos 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 1.6 2005/12/11 12:17:05 christos 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(device_t, cfdata_t, void *);
  61 void leattach(device_t, device_t, void *);
  62
  63 CFATTACH_DECL_NEW(le, sizeof(struct am79900_softc),
  64     lematch, leattach, NULL, NULL);
  65
  66 int     leintr(void *);
  67
  68 void lewrcsr(struct lance_softc *, uint16_t, uint16_t);
  69 uint16_t lerdcsr(struct lance_softc *, uint16_t);
  70
  71 static char *lebase, *lemembase;
  72
  73 void
  74 lewrcsr(struct lance_softc *sc, uint16_t port, uint16_t val)
  75 {
  76
  77         *(volatile int *)(lebase + 4) = port;
  78         *(volatile int *)(lebase + 0) = val;
  79 }
  80
  81 uint16_t
  82 lerdcsr(struct lance_softc *sc, uint16_t port)
  83 {
  84         uint16_t val;
  85
  86         *(volatile int *)(lebase + 4) = port;
  87         val = *(volatile int *)(lebase + 0);
  88         return (val);
  89 }
  90
  91 int
  92 lematch(device_t parent, cfdata_t cf, void *aux)
  93 {
  94
  95         return (1);
  96 }
  97
  98 /*
  99  * Interface exists: make available by filling in network interface
 100  * record.  System will initialize the interface when it is ready
 101  * to accept packets.
 102  */
 103 extern void sic_enable_int(int, int, int, int, int);
 104 static char hwa[6] = {0x00,0x80,0xa2,0x00,0x30,0x23};
 105 void
 106 leattach(device_t parent, device_t self, void *aux)
 107 {
 108         struct lance_softc *sc = device_private(self);
 109         int i;
 110
 111         mainbus_map(0x4c000000, 0x10000, 0, (void *)&lemembase);
 112         mainbus_map(0x48000000, 0x1000, 0, (void *)&lebase);
 113
 114         sc->sc_dev = self;
 115         sc->sc_mem = lemembase;
 116         sc->sc_conf3 = LE_C3_BSWP;
 117         sc->sc_addr = 0x4c000000;
 118         sc->sc_memsize = 64 * 1024;
 119
 120         if (cesfic_getetheraddr(sc->sc_enaddr)) {
 121                 /* fallback */
 122                 for (i = 0; i < sizeof(sc->sc_enaddr); i++) {
 123                         sc->sc_enaddr[i] = hwa[i];
 124                 }
 125         }
 126
 127         sc->sc_copytodesc = lance_copytobuf_contig;
 128         sc->sc_copyfromdesc = lance_copyfrombuf_contig;
 129         sc->sc_copytobuf = lance_copytobuf_contig;
 130         sc->sc_copyfrombuf = lance_copyfrombuf_contig;
 131         sc->sc_zerobuf = lance_zerobuf_contig;
 132
 133         sc->sc_rdcsr = lerdcsr;
 134         sc->sc_wrcsr = lewrcsr;
 135         sc->sc_hwinit = NULL;
 136
 137         lewrcsr(sc, 4, 0x44);
 138         am79900_config((struct am79900_softc *)sc);
 139
 140         /* Establish the interrupt handler. */
 141         (void) isrlink(leintr, sc, 3, ISRPRI_NET);
 142         sic_enable_int(17, 0, 1, 3, 0);
 143 }
 144
 145 int
 146 leintr(void *arg)
 147 {
 148         struct lance_softc *sc = arg;
 149         uint16_t isr4;
 150
 151         isr4 = lerdcsr(sc, 4);
 152         if (isr4 & 0x08) {
 153                 lewrcsr(sc, 4, isr4);
 154                 return (1);
 155         }
 156
 157         return (am79900_intr(sc));
 158 }