sys/arch/vax/if/if_ze.c

   1 /*      $NetBSD: if_ze.c,v 1.14 2008/03/14 20:49:29 jkunz Exp $ */
   2 /*
   3  * Copyright (c) 1999 Ludd, University of Lule}, Sweden. 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, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed at Ludd, University of
  16  *      Lule}, Sweden and its contributors.
  17  * 4. The name of the author may not be used to endorse or promote products
  18  *    derived from this software without specific prior written permission
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 __KERNEL_RCSID(0, "$NetBSD: if_ze.c,v 1.14 2008/03/14 20:49:29 jkunz Exp $");
  34
  35 #include "opt_cputype.h"
  36
  37 #include <sys/param.h>
  38 #include <sys/socket.h>
  39 #include <sys/device.h>
  40 #include <sys/systm.h>
  41 #include <sys/sockio.h>
  42
  43 #include <net/if.h>
  44 #include <net/if_ether.h>
  45 #include <net/if_dl.h>
  46
  47 #include <netinet/in.h>
  48 #include <netinet/if_inarp.h>
  49
  50 #if NBPFILTER > 0
  51 #include <net/bpf.h>
  52 #include <net/bpfdesc.h>
  53 #endif
  54
  55 #include <machine/bus.h>
  56 #include <machine/nexus.h>
  57 #include <machine/cpu.h>
  58 #include <machine/scb.h>
  59 #include <machine/sid.h>
  60 #include <machine/mainbus.h>
  61
  62 #include <dev/ic/sgecreg.h>
  63 #include <dev/ic/sgecvar.h>
  64
  65 #include "ioconf.h"
  66
  67 /*
  68  * Addresses.
  69  */
  70 #define SGECADDR        0x20008000
  71 #define NISA_ROM        0x20084000
  72 #define NISA_ROM_VXT    0x200c4000
  73 #define NISA_ROM_VSBUS  0x27800000
  74 #define SGECVEC         0x108
  75
  76 static int      ze_mainbus_match(device_t, cfdata_t, void *);
  77 static void     ze_mainbus_attach(device_t, device_t, void *);
  78
  79 static const struct sgec_data {
  80         uint32_t sd_boardtype;
  81         bus_addr_t sd_addr;
  82         bus_addr_t sd_rom;
  83         uint16_t sd_intvec;
  84         uint8_t sd_romshift;
  85 } sgec_data[] = {
  86         { VAX_BTYP_660, SGECADDR, NISA_ROM, SGECVEC, 24, },
  87 #if VXT2000 || VAXANY
  88         { VAX_BTYP_VXT, SGECADDR, NISA_ROM_VXT, 0x200, 0, },
  89 #endif
  90         { VAX_BTYP_670, SGECADDR, NISA_ROM, SGECVEC, 8, },
  91         { VAX_BTYP_680, SGECADDR, NISA_ROM, SGECVEC, 8, },
  92         { VAX_BTYP_681, SGECADDR, NISA_ROM, SGECVEC, 8, },
  93         { VAX_BTYP_48, SGECADDR, NISA_ROM_VSBUS, SGECVEC, 0, },
  94         { VAX_BTYP_49, SGECADDR, NISA_ROM_VSBUS, SGECVEC, 0, },
  95         { VAX_BTYP_53, SGECADDR, NISA_ROM, SGECVEC, 8, },
  96 };
  97
  98 static const struct sgec_data *
  99 ze_find(void)
 100 {
 101         size_t i;
 102         const struct sgec_data *sd;
 103         for (i = 0, sd = sgec_data; i < __arraycount(sgec_data); i++, sd++) {
 104                 if (vax_boardtype == sd->sd_boardtype)
 105                         return sd;
 106         }
 107
 108         return NULL;
 109 }
 110
 111 CFATTACH_DECL_NEW(ze_mainbus, sizeof(struct ze_softc),
 112     ze_mainbus_match, ze_mainbus_attach, NULL, NULL);
 113
 114 /*
 115  * Check for present SGEC.
 116  */
 117 int
 118 ze_mainbus_match(device_t parent, cfdata_t cf, void *aux)
 119 {
 120         struct mainbus_attach_args * const ma = aux;
 121
 122         /*
 123          * Should some more intelligent checking be done???
 124          */
 125         if (strcmp(ma->ma_type, "sgec"))
 126                 return 0;
 127
 128         return ze_find() != NULL;
 129 }
 130
 131 /*
 132  * Interface exists: make available by filling in network interface
 133  * record.  System will initialize the interface when it is ready
 134  * to accept packets.
 135  */
 136 void
 137 ze_mainbus_attach(device_t parent, device_t self, void *aux)
 138 {
 139         struct mainbus_attach_args * const ma = aux;
 140         struct ze_softc * const sc = device_private(self);
 141         const struct sgec_data * const sd = ze_find();
 142         const uint32_t *ea;
 143         size_t i;
 144         int error;
 145
 146         sc->sc_dev = self;
 147
 148         /*
 149          * Map in SGEC registers.
 150          */
 151         sc->sc_dmat = ma->ma_dmat;
 152         sc->sc_iot = ma->ma_iot;
 153         sc->sc_intvec = sd->sd_intvec;
 154         error = bus_space_map(sc->sc_iot, sd->sd_addr, PAGE_SIZE, 0,
 155             &sc->sc_ioh);
 156         if (error) {
 157                 aprint_error(": failed to map %#lx: %d\n", sd->sd_addr, error);
 158                 return;
 159         }
 160
 161         /*
 162          * Map in, read and release ethernet rom address.
 163          */
 164         ea = (uint32_t *)vax_map_physmem(sd->sd_rom, 1);
 165         for (i = 0; i < ETHER_ADDR_LEN; i++)
 166                 sc->sc_enaddr[i] = (ea[i] >> sd->sd_romshift) & 0377;
 167         vax_unmap_physmem((vaddr_t)ea, 1);
 168
 169         scb_vecalloc(sc->sc_intvec, (void (*)(void *)) sgec_intr, sc,
 170             SCB_ISTACK, &sc->sc_intrcnt);
 171
 172         sgec_attach(sc);
 173 }