sys/arch/newsmips/dev/if_le.c

   1 /*      $NetBSD: if_le.c,v 1.16 2008/04/04 12:25:06 tsutsui Exp $       */
   2
   3 /*-
   4  * Copyright (c) 1996 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Adam Glass and Gordon W. Ross.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 __KERNEL_RCSID(0, "$NetBSD: if_le.c,v 1.16 2008/04/04 12:25:06 tsutsui Exp $");
  34
  35 #include "opt_inet.h"
  36 #include "bpfilter.h"
  37
  38 #include <sys/param.h>
  39 #include <sys/systm.h>
  40 #include <sys/mbuf.h>
  41 #include <sys/syslog.h>
  42 #include <sys/socket.h>
  43 #include <sys/device.h>
  44
  45 #include <net/if.h>
  46 #include <net/if_ether.h>
  47 #include <net/if_media.h>
  48
  49 #ifdef INET
  50 #include <netinet/in.h>
  51 #include <netinet/if_inarp.h>
  52 #endif
  53
  54 #include <machine/cpu.h>
  55 #include <machine/adrsmap.h>
  56
  57 #include <dev/ic/lancereg.h>
  58 #include <dev/ic/lancevar.h>
  59 #include <dev/ic/am7990reg.h>
  60 #include <dev/ic/am7990var.h>
  61
  62 #include <newsmips/dev/hbvar.h>
  63
  64 /*
  65  * LANCE registers.
  66  * The real stuff is in dev/ic/am7990reg.h
  67  */
  68 struct lereg1 {
  69         volatile uint16_t       ler1_rdp;       /* data port */
  70         volatile uint16_t       ler1_rap;       /* register select port */
  71 };
  72
  73 /*
  74  * Ethernet software status per interface.
  75  * The real stuff is in dev/ic/am7990var.h
  76  */
  77 struct  le_softc {
  78         struct  am7990_softc sc_am7990; /* glue to MI code */
  79
  80         struct  lereg1 *sc_r1;          /* LANCE registers */
  81 };
  82
  83 static int      le_match(device_t, cfdata_t, void *);
  84 static void     le_attach(device_t, device_t, void *);
  85
  86 CFATTACH_DECL_NEW(le, sizeof(struct le_softc),
  87     le_match, le_attach, NULL, NULL);
  88
  89 #if defined(_KERNEL_OPT)
  90 #include "opt_ddb.h"
  91 #endif
  92
  93 #ifdef DDB
  94 #define integrate
  95 #define hide
  96 #else
  97 #define integrate       static inline
  98 #define hide            static
  99 #endif
 100
 101 hide void lewrcsr(struct lance_softc *, uint16_t, uint16_t);
 102 hide uint16_t lerdcsr(struct lance_softc *, uint16_t);
 103
 104 hide void
 105 lewrcsr(struct lance_softc *sc, uint16_t port, uint16_t val)
 106 {
 107         struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
 108
 109         ler1->ler1_rap = port;
 110         ler1->ler1_rdp = val;
 111 }
 112
 113 hide uint16_t
 114 lerdcsr(struct lance_softc *sc, uint16_t port)
 115 {
 116         struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
 117         uint16_t val;
 118
 119         ler1->ler1_rap = port;
 120         val = ler1->ler1_rdp;
 121         return val;
 122 }
 123
 124 int
 125 le_match(device_t parent, cfdata_t cf, void *aux)
 126 {
 127         struct hb_attach_args *ha = aux;
 128
 129         if (strcmp(ha->ha_name, "le"))
 130                 return 0;
 131
 132         if (hb_badaddr((void *)ha->ha_addr, 1)) /* XXX */
 133                 return 0;
 134
 135         return 1;
 136 }
 137
 138 void
 139 le_attach(device_t parent, device_t self, void *aux)
 140 {
 141         struct le_softc *lesc = device_private(self);
 142         struct lance_softc *sc = &lesc->sc_am7990.lsc;
 143         struct hb_attach_args *ha = aux;
 144         int intlevel, intmask;
 145         uint8_t *p;
 146
 147         sc->sc_dev = self;
 148         intlevel = ha->ha_level;
 149         if (intlevel == -1) {
 150                 aprint_error(": interrupt level not configured\n");
 151                 return;
 152         }
 153         aprint_normal(" level %d", intlevel);
 154
 155         switch (ha->ha_addr) {
 156
 157         case LANCE_PORT:
 158                 sc->sc_mem = (void *)LANCE_MEMORY;
 159                 p = (uint8_t *)(ETHER_ID + 16);
 160                 intmask = INTST1_LANCE;
 161                 break;
 162         case LANCE_PORT1:
 163                 sc->sc_mem = (void *)LANCE_MEMORY1;
 164                 p = (uint8_t *)(ETHER_ID1 + 16);
 165                 intmask = INTST1_SLOT3; /* XXX not tested */
 166                 break;
 167         case LANCE_PORT2:
 168                 sc->sc_mem = (void *)LANCE_MEMORY2;
 169                 p = (uint8_t *)(ETHER_ID2 + 16);
 170                 intmask = INTST1_SLOT3; /* XXX not tested */
 171                 break;
 172
 173         default:
 174                 aprint_error(": unknown LANCE addr\n");
 175                 return;
 176         }
 177
 178         lesc->sc_r1 = (void *)ha->ha_addr;
 179
 180         sc->sc_memsize = 0x4000;        /* 16K */
 181         sc->sc_addr = (int)sc->sc_mem & 0x00ffffff;
 182         sc->sc_conf3 = LE_C3_BSWP|LE_C3_BCON;
 183
 184         sc->sc_enaddr[0] = (*p++ << 4);
 185         sc->sc_enaddr[0] |= *p++ & 0x0f;
 186         sc->sc_enaddr[1] = (*p++ << 4);
 187         sc->sc_enaddr[1] |= *p++ & 0x0f;
 188         sc->sc_enaddr[2] = (*p++ << 4);
 189         sc->sc_enaddr[2] |= *p++ & 0x0f;
 190         sc->sc_enaddr[3] = (*p++ << 4);
 191         sc->sc_enaddr[3] |= *p++ & 0x0f;
 192         sc->sc_enaddr[4] = (*p++ << 4);
 193         sc->sc_enaddr[4] |= *p++ & 0x0f;
 194         sc->sc_enaddr[5] = (*p++ << 4);
 195         sc->sc_enaddr[5] |= *p++ & 0x0f;
 196
 197         sc->sc_copytodesc = lance_copytobuf_contig;
 198         sc->sc_copyfromdesc = lance_copyfrombuf_contig;
 199         sc->sc_copytobuf = lance_copytobuf_contig;
 200         sc->sc_copyfrombuf = lance_copyfrombuf_contig;
 201         sc->sc_zerobuf = lance_zerobuf_contig;
 202
 203         sc->sc_rdcsr = lerdcsr;
 204         sc->sc_wrcsr = lewrcsr;
 205         sc->sc_hwinit = NULL;
 206
 207         am7990_config(&lesc->sc_am7990);
 208         hb_intr_establish(intlevel, intmask, IPL_NET, am7990_intr, sc);
 209 }