sys/arch/sun3/dev/if_le.c

   1 /*      $NetBSD: if_le.c,v 1.50 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 1.50 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/autoconf.h>
  55 #include <machine/cpu.h>
  56 #include <machine/dvma.h>
  57 #include <machine/idprom.h>
  58
  59 #include <dev/ic/lancereg.h>
  60 #include <dev/ic/lancevar.h>
  61 #include <dev/ic/am7990reg.h>
  62 #include <dev/ic/am7990var.h>
  63
  64 #define LE_MEMSIZE      0x4000  /* 16K */
  65
  66 /*
  67  * LANCE registers.
  68  * The real stuff is in dev/ic/am7990reg.h
  69  */
  70 struct lereg1 {
  71         volatile uint16_t       ler1_rdp;       /* data port */
  72         volatile uint16_t       ler1_rap;       /* register select port */
  73 };
  74
  75 /*
  76  * Ethernet software status per interface.
  77  * The real stuff is in dev/ic/am7990var.h
  78  */
  79 struct  le_softc {
  80         struct  am7990_softc sc_am7990; /* glue to MI code */
  81
  82         struct  lereg1 *sc_r1;          /* LANCE registers */
  83 };
  84
  85 static int      le_match(device_t, cfdata_t, void *);
  86 static void     le_attach(device_t, device_t, void *);
  87
  88 CFATTACH_DECL_NEW(le, sizeof(struct le_softc),
  89     le_match, le_attach, NULL, NULL);
  90
  91 #if defined(_KERNEL_OPT)
  92 #include "opt_ddb.h"
  93 #endif
  94
  95 #ifdef DDB
  96 #define integrate
  97 #define hide
  98 #else
  99 #define integrate       static inline
 100 #define hide            static
 101 #endif
 102
 103 hide void lewrcsr(struct lance_softc *, uint16_t, uint16_t);
 104 hide uint16_t lerdcsr(struct lance_softc *, uint16_t);
 105
 106 hide void
 107 lewrcsr(struct lance_softc *sc, uint16_t port, uint16_t val)
 108 {
 109         struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
 110
 111         ler1->ler1_rap = port;
 112         ler1->ler1_rdp = val;
 113 }
 114
 115 hide uint16_t
 116 lerdcsr(struct lance_softc *sc, uint16_t port)
 117 {
 118         struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
 119         uint16_t val;
 120
 121         ler1->ler1_rap = port;
 122         val = ler1->ler1_rdp;
 123         return (val);
 124 }
 125
 126 int
 127 le_match(device_t parent, cfdata_t cf, void *aux)
 128 {
 129         struct confargs *ca = aux;
 130
 131         /* Make sure there is something there... */
 132         if (bus_peek(ca->ca_bustype, ca->ca_paddr, 2) == -1)
 133                 return (0);
 134
 135         /* Default interrupt priority. */
 136         if (ca->ca_intpri == -1)
 137                 ca->ca_intpri = 3;
 138
 139         return (1);
 140 }
 141
 142 void
 143 le_attach(device_t parent, device_t self, void *aux)
 144 {
 145         struct le_softc *lesc = device_private(self);
 146         struct lance_softc *sc = &lesc->sc_am7990.lsc;
 147         struct confargs *ca = aux;
 148
 149         sc->sc_dev = self;
 150         lesc->sc_r1 = bus_mapin(ca->ca_bustype,
 151             ca->ca_paddr, sizeof(struct lereg1));
 152
 153         sc->sc_memsize = LE_MEMSIZE;
 154         sc->sc_mem = dvma_malloc(sc->sc_memsize);
 155         sc->sc_addr = dvma_kvtopa(sc->sc_mem, ca->ca_bustype);
 156 #ifdef  _SUN3X_
 157         sc->sc_conf3 = LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON;
 158 #else
 159         sc->sc_conf3 = LE_C3_BSWP;
 160 #endif
 161
 162         idprom_etheraddr(sc->sc_enaddr);
 163
 164         sc->sc_copytodesc = lance_copytobuf_contig;
 165         sc->sc_copyfromdesc = lance_copyfrombuf_contig;
 166         sc->sc_copytobuf = lance_copytobuf_contig;
 167         sc->sc_copyfrombuf = lance_copyfrombuf_contig;
 168         sc->sc_zerobuf = lance_zerobuf_contig;
 169
 170         sc->sc_rdcsr = lerdcsr;
 171         sc->sc_wrcsr = lewrcsr;
 172         sc->sc_hwinit = NULL;
 173
 174         am7990_config(&lesc->sc_am7990);
 175
 176         /* Install interrupt handler. */
 177         isr_add_autovect(am7990_intr, (void *)sc, ca->ca_intpri);
 178 }