sys/arch/hp300/dev/intio.c

   1 /*      $NetBSD: intio.c,v 1.27 2008/03/29 06:47:07 tsutsui Exp $       */
   2
   3 /*-
   4  * Copyright (c) 1996, 1998, 2001 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Jason R. Thorpe.
   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 /*
  33  * Autoconfiguration support for hp300 internal i/o space.
  34  */
  35
  36 #include <sys/cdefs.h>
  37 __KERNEL_RCSID(0, "$NetBSD: intio.c,v 1.27 2008/03/29 06:47:07 tsutsui Exp $");
  38
  39 #include <sys/param.h>
  40 #include <sys/systm.h>
  41 #include <sys/device.h>
  42
  43 #include <machine/hp300spu.h>
  44
  45 #include <hp300/dev/intioreg.h>
  46 #include <hp300/dev/intiovar.h>
  47
  48 struct intio_softc {
  49         device_t sc_dev;
  50         struct bus_space_tag sc_tag;
  51 };
  52
  53 static int      intiomatch(device_t, cfdata_t, void *);
  54 static void     intioattach(device_t, device_t, void *);
  55 static int      intioprint(void *, const char *);
  56
  57 CFATTACH_DECL_NEW(intio, sizeof(struct intio_softc),
  58     intiomatch, intioattach, NULL, NULL);
  59
  60 #if defined(HP320) || defined(HP330) || defined(HP340) || defined(HP345) || \
  61     defined(HP350) || defined(HP360) || defined(HP370) || defined(HP375) || \
  62     defined(HP380) || defined(HP385)
  63 static const struct intio_builtins intio_3xx_builtins[] = {
  64         { "rtc",        RTC_BASE,       -1},
  65         { "hil",        HIL_BASE,       1},
  66         { "hpib",       HPIB_BASE,      3},
  67         { "dma",        DMA_BASE,       1},
  68         { "fb",         FB_BASE,        -1},
  69 };
  70 #define nintio_3xx_builtins     __arraycount(intio_3xx_builtins)
  71 #endif
  72
  73 #if defined(HP362) || defined(HP382)
  74 static const struct intio_builtins intio_3x2_builtins[] = {
  75         { "rtc",        RTC_BASE,       -1},
  76         { "frodo",      FRODO_BASE,     5},
  77         { "hil",        HIL_BASE,       1},
  78         { "hpib",       HPIB_BASE,      3},
  79         { "dma",        DMA_BASE,       1},
  80 };
  81 #define nintio_3x2_builtins     __arraycount(intio_3x2_builtins)
  82 #endif
  83
  84 #if defined(HP400) || defined(HP425) || defined(HP433)
  85 static const struct intio_builtins intio_4xx_builtins[] = {
  86         { "rtc",        RTC_BASE,       -1},
  87         { "frodo",      FRODO_BASE,     5},
  88         { "hil",        HIL_BASE,       1},
  89         { "hpib",       HPIB_BASE,      3},
  90         { "dma",        DMA_BASE,       1},
  91 };
  92 #define nintio_4xx_builtins     __arraycount(intio_4xx_builtins)
  93 #endif
  94
  95 static int intio_matched = 0;
  96 extern void *internalhpib;
  97
  98 static int
  99 intiomatch(device_t parent, cfdata_t cf, void *aux)
 100 {
 101
 102         /* Allow only one instance. */
 103         if (intio_matched)
 104                 return 0;
 105
 106         intio_matched = 1;
 107         return 1;
 108 }
 109
 110 static void
 111 intioattach(device_t parent, device_t self, void *aux)
 112 {
 113         struct intio_softc *sc = device_private(self);
 114         struct intio_attach_args ia;
 115         const struct intio_builtins *ib;
 116         bus_space_tag_t bst = &sc->sc_tag;
 117         int ndevs;
 118         int i;
 119
 120         sc->sc_dev = self;
 121         aprint_normal("\n");
 122
 123         memset(bst, 0, sizeof(struct bus_space_tag));
 124         bst->bustype = HP300_BUS_SPACE_INTIO;
 125
 126         switch (machineid) {
 127 #if defined(HP320) || defined(HP330) || defined(HP340) || defined(HP345) || \
 128     defined(HP350) || defined(HP360) || defined(HP370) || defined(HP375) || \
 129     defined(HP380) || defined(HP385)
 130         case HP_320:
 131         case HP_330:
 132         case HP_340:
 133         case HP_345:
 134         case HP_350:
 135         case HP_360:
 136         case HP_370:
 137         case HP_375:
 138         case HP_380:
 139         case HP_385:
 140                 ib = intio_3xx_builtins;
 141                 ndevs = nintio_3xx_builtins;
 142                 break;
 143 #endif
 144 #if defined(HP362) || defined(HP382)
 145         case HP_362:
 146         case HP_382:
 147                 ib = intio_3x2_builtins;
 148                 ndevs = nintio_3x2_builtins;
 149                 break;
 150 #endif
 151 #if defined(HP400) || defined(HP425) || defined(HP433)
 152         case HP_400:
 153         case HP_425:
 154         case HP_433:
 155                 ib = intio_4xx_builtins;
 156                 ndevs = nintio_4xx_builtins;
 157                 break;
 158 #endif
 159         default:
 160                 return;
 161         }
 162
 163         memset(&ia, 0, sizeof(ia));
 164
 165         for (i = 0; i < ndevs; i++) {
 166
 167                 /*
 168                  * Internal HP-IB doesn't always return a device ID,
 169                  * so we rely on the sysflags.
 170                  */
 171                 if (ib[i].ib_offset == HPIB_BASE && !internalhpib)
 172                         continue;
 173
 174                 strlcpy(ia.ia_modname, ib[i].ib_modname,
 175                     sizeof(ia.ia_modname));
 176                 ia.ia_bst = bst;
 177                 ia.ia_iobase = ib[i].ib_offset;
 178                 ia.ia_addr = (bus_addr_t)(intiobase + ib[i].ib_offset);
 179                 ia.ia_ipl = ib[i].ib_ipl;
 180                 config_found(self, &ia, intioprint);
 181         }
 182 }
 183
 184 static int
 185 intioprint(void *aux, const char *pnp)
 186 {
 187         struct intio_attach_args *ia = aux;
 188
 189         if (pnp != NULL)
 190                 aprint_normal("%s at %s", ia->ia_modname, pnp);
 191         if (ia->ia_iobase != 0 && pnp == NULL) {
 192                 aprint_normal(" addr 0x%lx", INTIOBASE + ia->ia_iobase);
 193                 if (ia->ia_ipl != -1)
 194                         aprint_normal(" ipl %d", ia->ia_ipl);
 195         }
 196         return UNCONF;
 197 }