sys/dev/netif/snc/if_snc.c

   1 /*
   2  * Copyright (c) 1995, David Greenman
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice unmodified, this list of conditions, and the following
  10  *    disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25  * SUCH DAMAGE.
  26  *
  27  * $FreeBSD: src/sys/dev/snc/if_snc.c,v 1.2.2.1 2000/10/21 03:30:03 nyan Exp $
  28  * $DragonFly: src/sys/dev/netif/snc/Attic/if_snc.c,v 1.4 2003/11/20 22:07:31 dillon Exp $
  29  */
  30
  31 /*
  32  *      National Semiconductor  DP8393X SONIC Driver
  33  *
  34  *      This is the bus independent attachment on FreeBSD 4.x
  35  *              written by Motomichi Matsuzaki <mzaki@e-mail.ne.jp>
  36  */
  37
  38 #include <sys/param.h>
  39 #include <sys/systm.h>
  40 #include <sys/sockio.h>
  41 #include <sys/mbuf.h>
  42 #include <sys/socket.h>
  43 #include <sys/syslog.h>
  44
  45 #include <sys/linker_set.h>
  46 #include <sys/module.h>
  47 #include <sys/bus.h>
  48 #include <machine/bus.h>
  49 #include <sys/rman.h>
  50 #include <machine/resource.h>
  51
  52 #include <net/ethernet.h>
  53 #include <net/if.h>
  54 #include <net/if_arp.h>
  55 #include <net/if_media.h>
  56 #include <net/if_dl.h>
  57 #include <net/if_mib.h>
  58
  59 #include <net/bpf.h>
  60 #include "opt_bdg.h"
  61 #ifdef BRIDGE
  62 #include <net/bridge.h>
  63 #endif
  64
  65 #include "dp83932reg.h"
  66 #include "dp83932var.h"
  67 #include "dp83932subr.h"
  68 #include "if_sncreg.h"
  69 #include "if_sncvar.h"
  70
  71 /* devclass for "snc" */
  72 devclass_t snc_devclass;
  73
  74 DECLARE_DUMMY_MODULE(if_snc);
  75
  76 /****************************************************************
  77   Resource management functions
  78  ****************************************************************/
  79
  80 /*
  81  * Allocate a port resource with the given resource id.
  82  */
  83 int
  84 snc_alloc_port(dev, rid)
  85         device_t dev;
  86         int rid;
  87 {
  88         struct snc_softc *sc = device_get_softc(dev);
  89         struct resource *res;
  90
  91         res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
  92                                  0ul, ~0ul, SNEC_NREGS, RF_ACTIVE);
  93         if (res) {
  94                 sc->ioport = res;
  95                 sc->ioport_rid = rid;
  96                 sc->sc_iot = rman_get_bustag(res);
  97                 sc->sc_ioh = rman_get_bushandle(res);
  98                 return (0);
  99         } else {
 100                 device_printf(dev, "can't assign port\n");
 101                 return (ENOENT);
 102         }
 103 }
 104
 105 /*
 106  * Allocate a memory resource with the given resource id.
 107  */
 108 int
 109 snc_alloc_memory(dev, rid)
 110         device_t dev;
 111         int rid;
 112 {
 113         struct snc_softc *sc = device_get_softc(dev);
 114         struct resource *res;
 115
 116         res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
 117                                  0ul, ~0ul, SNEC_NMEMS, RF_ACTIVE);
 118         if (res) {
 119                 sc->iomem = res;
 120                 sc->iomem_rid = rid;
 121                 sc->sc_memt = rman_get_bustag(res);
 122                 sc->sc_memh = rman_get_bushandle(res);
 123                 return (0);
 124         } else {
 125                 device_printf(dev, "can't assign memory\n");
 126                 return (ENOENT);
 127         }
 128 }
 129
 130 /*
 131  * Allocate an irq resource with the given resource id.
 132  */
 133 int
 134 snc_alloc_irq(dev, rid, flags)
 135         device_t dev;
 136         int rid;
 137         int flags;
 138 {
 139         struct snc_softc *sc = device_get_softc(dev);
 140         struct resource *res;
 141
 142         res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid,
 143                                  0ul, ~0ul, 1, (RF_ACTIVE | flags));
 144         if (res) {
 145                 sc->irq = res;
 146                 sc->irq_rid = rid;
 147                 return (0);
 148         } else {
 149                 device_printf(dev, "can't assign irq\n");
 150                 return (ENOENT);
 151         }
 152 }
 153
 154 /*
 155  * Release all resources
 156  */
 157 void
 158 snc_release_resources(dev)
 159         device_t dev;
 160 {
 161         struct snc_softc *sc = device_get_softc(dev);
 162
 163         if (sc->ioport) {
 164                 bus_release_resource(dev, SYS_RES_IOPORT,
 165                                      sc->ioport_rid, sc->ioport);
 166                 sc->ioport = 0;
 167         }
 168         if (sc->iomem) {
 169                 bus_release_resource(dev, SYS_RES_MEMORY,
 170                                      sc->iomem_rid, sc->iomem);
 171                 sc->iomem = 0;
 172         }
 173         if (sc->irq) {
 174                 bus_release_resource(dev, SYS_RES_IRQ,
 175                                      sc->irq_rid, sc->irq);
 176                 sc->irq = 0;
 177         }
 178 }
 179
 180 /****************************************************************
 181   Probe routine
 182  ****************************************************************/
 183
 184 int
 185 snc_probe(dev, type)
 186      device_t dev;
 187      int type;
 188 {
 189         struct snc_softc *sc = device_get_softc(dev);
 190
 191         return snc_nec16_detectsubr(sc->sc_iot, sc->sc_ioh,
 192                                     sc->sc_memt, sc->sc_memh,
 193                                     rman_get_start(sc->irq),
 194                                     rman_get_start(sc->iomem),
 195                                     type);
 196 }
 197
 198 /****************************************************************
 199   Attach routine
 200  ****************************************************************/
 201
 202 int
 203 snc_attach(dev)
 204         device_t dev;
 205 {
 206         struct snc_softc *sc = device_get_softc(dev);
 207         u_int8_t myea[ETHER_ADDR_LEN];
 208
 209         if (snc_nec16_register_irq(sc, rman_get_start(sc->irq)) == 0 ||
 210             snc_nec16_register_mem(sc, rman_get_start(sc->iomem)) == 0) {
 211                 snc_release_resources(dev);
 212                 return(ENOENT);
 213         }
 214
 215         snc_nec16_get_enaddr(sc->sc_iot, sc->sc_ioh, myea);
 216         device_printf(dev, "%s Ethernet\n", snc_nec16_detect_type(myea));
 217
 218         sc->sc_dev = dev;
 219
 220         sc->sncr_dcr = DCR_SYNC | DCR_WAIT0 |
 221             DCR_DMABLOCK | DCR_RFT16 | DCR_TFT28;
 222         sc->sncr_dcr2 = 0;      /* XXX */
 223         sc->bitmode = 0;        /* 16 bit card */
 224
 225         sc->sc_nic_put = snc_nec16_nic_put;
 226         sc->sc_nic_get = snc_nec16_nic_get;
 227         sc->sc_writetodesc = snc_nec16_writetodesc;
 228         sc->sc_readfromdesc = snc_nec16_readfromdesc;
 229         sc->sc_copytobuf = snc_nec16_copytobuf;
 230         sc->sc_copyfrombuf = snc_nec16_copyfrombuf;
 231         sc->sc_zerobuf = snc_nec16_zerobuf;
 232
 233         /* sncsetup returns 1 if something fails */
 234         if (sncsetup(sc, myea)) {
 235                 snc_release_resources(dev);
 236                 return(ENOENT);
 237         }
 238
 239         sncconfig(sc, NULL, 0, 0, myea);
 240
 241         return 0;
 242 }
 243
 244 /****************************************************************
 245   Shutdown routine
 246  ****************************************************************/
 247
 248 void
 249 snc_shutdown(dev)
 250         device_t dev;
 251 {
 252         sncshutdown(device_get_softc(dev));
 253 }