sys/dev/bi/bi.c

   1 /*      $NetBSD: bi.c,v 1.23 2007/10/19 11:59:37 ad Exp $ */
   2 /*
   3  * Copyright (c) 1996 Ludd, University of Lule}, Sweden.
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following 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  * 3. All advertising materials mentioning features or use of this software
  15  *    must display the following acknowledgement:
  16  *      This product includes software developed at Ludd, University of
  17  *      Lule}, Sweden and its contributors.
  18  * 4. The name of the author may not be used to endorse or promote products
  19  *    derived from this software without specific prior written permission
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33
  34
  35 /*
  36  * VAXBI specific routines.
  37  */
  38 /*
  39  * TODO
  40  *   handle BIbus errors more gracefully.
  41  */
  42
  43 #include <sys/cdefs.h>
  44 __KERNEL_RCSID(0, "$NetBSD: bi.c,v 1.23 2007/10/19 11:59:37 ad Exp $");
  45
  46 #include <sys/param.h>
  47 #include <sys/systm.h>
  48
  49 #include <sys/bus.h>
  50 #include <sys/cpu.h>
  51
  52 #include <dev/bi/bireg.h>
  53 #include <dev/bi/bivar.h>
  54
  55 static int bi_print(void *, const char *);
  56
  57 static const struct bi_list bi_list[] = {
  58         {BIDT_MS820, DT_HAVDRV, "ms820"},
  59         {BIDT_DRB32, DT_UNSUPP, "drb32"},
  60         {BIDT_DWBUA, DT_HAVDRV|DT_ADAPT, "dwbua"},
  61         {BIDT_KLESI, DT_HAVDRV|DT_ADAPT, "klesi"},
  62         {BIDT_KA820, DT_HAVDRV, "ka820"},
  63         {BIDT_DB88,  DT_HAVDRV|DT_QUIET, "db88"},
  64         {BIDT_CIBCA, DT_UNSUPP, "cibca"},
  65         {BIDT_DMB32, DT_UNSUPP, "dmb32"},
  66         {BIDT_CIBCI, DT_UNSUPP, "cibci"},
  67         {BIDT_KA800, DT_UNSUPP, "ka800"},
  68         {BIDT_KDB50, DT_HAVDRV|DT_VEC, "kdb50"},
  69         {BIDT_DWMBA, DT_HAVDRV|DT_QUIET, "dwmba"},
  70         {BIDT_KFBTA, DT_UNSUPP, "kfbta"},
  71         {BIDT_DEBNK, DT_HAVDRV|DT_VEC, "debnk"},
  72         {BIDT_DEBNA, DT_HAVDRV|DT_VEC, "debna"},
  73         {0,0,0}
  74 };
  75
  76 int
  77 bi_print(void *aux, const char *name)
  78 {
  79         struct bi_attach_args *ba = aux;
  80         const struct bi_list *bl;
  81         u_int16_t nr;
  82
  83         nr = bus_space_read_2(ba->ba_iot, ba->ba_ioh, 0);
  84         for (bl = &bi_list[0]; bl->bl_nr; bl++)
  85                 if (bl->bl_nr == nr)
  86                         break;
  87
  88         if (name) {
  89                 if (bl->bl_nr == 0)
  90                         aprint_normal("unknown device 0x%x", nr);
  91                 else
  92                         aprint_normal(bl->bl_name);
  93                 aprint_normal(" at %s", name);
  94         }
  95         aprint_normal(" node %d", ba->ba_nodenr);
  96         if (bl->bl_havedriver & DT_VEC)
  97                 aprint_normal(" vec %o", ba->ba_ivec & 511);
  98 #ifdef DEBUG
  99         if (bus_space_read_4(ba->ba_iot, ba->ba_ioh, BIREG_SADR) &&
 100             bus_space_read_4(ba->ba_iot, ba->ba_ioh, BIREG_EADR))
 101                 aprint_debug(" [sadr %x eadr %x]",
 102                     bus_space_read_4(ba->ba_iot, ba->ba_ioh, BIREG_SADR),
 103                     bus_space_read_4(ba->ba_iot, ba->ba_ioh, BIREG_EADR));
 104 #endif
 105         if (bl->bl_havedriver & DT_QUIET)
 106                 aprint_normal("\n");
 107         return bl->bl_havedriver & DT_QUIET ? QUIET :
 108             bl->bl_havedriver & DT_HAVDRV ? UNCONF : UNSUPP;
 109 }
 110
 111 void
 112 bi_attach(struct bi_softc *sc)
 113 {
 114         struct bi_attach_args ba;
 115         int nodenr;
 116
 117         aprint_normal("\n");
 118
 119         ba.ba_iot = sc->sc_iot;
 120         ba.ba_busnr = sc->sc_busnr;
 121         ba.ba_dmat = sc->sc_dmat;
 122         ba.ba_intcpu = sc->sc_intcpu;
 123         ba.ba_icookie = sc;
 124         /*
 125          * Interrupt numbers. Assign them as described in
 126          * VAX 8800 system maintenance manual; this means like nexus
 127          * adapters have them assigned.
 128          * XXX - must address Unibus adapters.
 129          */
 130         for (nodenr = 0; nodenr < NNODEBI; nodenr++) {
 131                 if (bus_space_map(sc->sc_iot, sc->sc_addr + BI_NODE(nodenr),
 132                     BI_NODESIZE, 0, &ba.ba_ioh)) {
 133                         aprint_error_dev(sc->sc_dev,
 134                             "bus_space_map failed, node %d\n", nodenr);
 135                         return;
 136                 }
 137                 if (badaddr((void *)ba.ba_ioh, 4) ||
 138                     (bus_space_read_2(ba.ba_iot, ba.ba_ioh, 0) == 0)) {
 139                         bus_space_unmap(ba.ba_iot, ba.ba_ioh, BI_NODESIZE);
 140                         continue;
 141                 }
 142                 ba.ba_nodenr = nodenr;
 143                 ba.ba_ivec = sc->sc_lastiv + 64 + 4 * nodenr; /* all on spl5 */
 144                 config_found(sc->sc_dev, &ba, bi_print);
 145         }
 146 }