sys/dev/sbus/if_en.c

   1 /*      $NetBSD: if_en.c,v 1.26 2009/09/17 16:28:12 tsutsui Exp $       */
   2
   3 /*
   4  *
   5  * Copyright (c) 1996 Charles D. Cranor and Washington University.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by Charles D. Cranor and
  19  *      Washington University.
  20  * 4. The name of the author may not be used to endorse or promote products
  21  *    derived from this software without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  26  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  27  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  28  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  32  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 /*
  36  *
  37  * i f _ e n _ s b u s . c
  38  *
  39  * author: Chuck Cranor <chuck@ccrc.wustl.edu>
  40  * started: spring, 1996.
  41  *
  42  * SBUS glue for the eni155s card.
  43  */
  44
  45 #include <sys/cdefs.h>
  46 __KERNEL_RCSID(0, "$NetBSD: if_en.c,v 1.26 2009/09/17 16:28:12 tsutsui Exp $");
  47
  48 #include <sys/param.h>
  49 #include <sys/systm.h>
  50 #include <sys/device.h>
  51 #include <sys/mbuf.h>
  52 #include <sys/socket.h>
  53 #include <sys/socketvar.h>
  54
  55 #include <net/if.h>
  56
  57 #include <sys/bus.h>
  58 #include <sys/intr.h>
  59 #include <sys/cpu.h>
  60
  61 #include <dev/sbus/sbusvar.h>
  62
  63 #include <dev/ic/midwayreg.h>
  64 #include <dev/ic/midwayvar.h>
  65
  66
  67 /*
  68  * local structures
  69  */
  70 struct en_sbus_softc {
  71         /* bus independent stuff */
  72         struct en_softc sc_en;          /* includes "device" structure */
  73
  74         /* sbus glue */
  75 };
  76
  77
  78 /*
  79  * prototypes
  80  */
  81 static  int en_sbus_match(device_t, cfdata_t, void *);
  82 static  void en_sbus_attach(device_t, device_t, void *);
  83
  84 /*
  85  * SBus autoconfig attachments
  86  */
  87
  88 CFATTACH_DECL(en_sbus, sizeof(struct en_sbus_softc),
  89     en_sbus_match, en_sbus_attach, NULL, NULL);
  90
  91 /***********************************************************************/
  92
  93 /*
  94  * autoconfig stuff
  95  */
  96
  97 static int
  98 en_sbus_match(device_t parent, cfdata_t cf, void *aux)
  99 {
 100         struct sbus_attach_args *sa = aux;
 101
 102         if (strcmp("ENI-155s", sa->sa_name) == 0)  {
 103                 if (CPU_ISSUN4M) {
 104 #ifdef DEBUG
 105                         printf("%s: sun4m DMA not supported yet\n",
 106                             sa->sa_name);
 107 #endif
 108                         return (0);
 109                 }
 110                 return (1);
 111         } else {
 112                 return (0);
 113         }
 114 }
 115
 116
 117 static void
 118 en_sbus_attach(device_t parent, device_t self, void *aux)
 119 {
 120         struct sbus_attach_args *sa = aux;
 121         struct en_sbus_softc *ssc = device_private(self);
 122         struct en_softc *sc = &ssc->sc_en;
 123
 124         printf("\n");
 125
 126         if (sbus_bus_map(sa->sa_bustag,
 127                          sa->sa_slot,
 128                          sa->sa_offset,
 129                          4*1024*1024,
 130                          0, &sc->en_base) != 0) {
 131                 aprint_error_dev(self, "cannot map registers\n");
 132                 return;
 133         }
 134
 135         /* Establish interrupt handler */
 136         if (sa->sa_nintr != 0)
 137                 (void)bus_intr_establish(sa->sa_bustag, sa->sa_pri,
 138                                          IPL_NET, en_intr, sc);
 139
 140         sc->ipl = sa->sa_pri;   /* appropriate? */
 141
 142         /*
 143          * done SBUS specific stuff
 144          */
 145         en_attach(sc);
 146 }