sys/arch/pmax/tc/tcbus.c

   1 /*      $NetBSD: tcbus.c,v 1.24 2009/03/14 21:04:14 dsl Exp $   */
   2
   3 /*-
   4  * Copyright (c) 1999, 2000 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Tohru Nishimura.
   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 #include <sys/cdefs.h>
  33 __KERNEL_RCSID(0, "$NetBSD: tcbus.c,v 1.24 2009/03/14 21:04:14 dsl Exp $");
  34
  35 /*
  36  * Which system models were configured?
  37  */
  38 #include "opt_dec_3max.h"
  39 #include "opt_dec_3min.h"
  40 #include "opt_dec_maxine.h"
  41 #include "opt_dec_3maxplus.h"
  42
  43 #include <sys/param.h>
  44 #include <sys/systm.h>
  45 #include <sys/device.h>
  46
  47 #include <machine/autoconf.h>
  48 #include <machine/sysconf.h>
  49
  50 #define _PMAX_BUS_DMA_PRIVATE
  51 #include <machine/bus.h>
  52
  53 #include <dev/tc/tcvar.h>
  54 #include <pmax/pmax/pmaxtype.h>
  55
  56 static const struct evcnt *tc_ds_intr_evcnt(struct device *, void *);
  57 static void     tc_ds_intr_establish(struct device *, void *,
  58                                 int, int (*)(void *), void *);
  59 static void     tc_ds_intr_disestablish(struct device *, void *);
  60 static bus_dma_tag_t tc_ds_get_dma_tag(int);
  61
  62 extern struct tcbus_attach_args kn02_tc_desc[]; /* XXX */
  63 extern struct tcbus_attach_args kmin_tc_desc[]; /* XXX */
  64 extern struct tcbus_attach_args xine_tc_desc[]; /* XXX */
  65 extern struct tcbus_attach_args kn03_tc_desc[]; /* XXX */
  66
  67 static int      tcbus_match(struct device *, struct cfdata *, void *);
  68 static void     tcbus_attach(struct device *, struct device *, void *);
  69
  70 CFATTACH_DECL(tcbus, sizeof(struct tc_softc),
  71     tcbus_match, tcbus_attach, NULL, NULL);
  72
  73 static int tcbus_found;
  74
  75 static int
  76 tcbus_match(struct device *parent, struct cfdata *cfdata, void *aux)
  77 {
  78         struct mainbus_attach_args *ma = aux;
  79
  80         if (tcbus_found || strcmp(ma->ma_name, "tcbus"))
  81                 return 0;
  82
  83         return 1;
  84 }
  85
  86 static void
  87 tcbus_attach(struct device *parent, struct device *self, void *aux)
  88 {
  89         struct tcbus_attach_args *tba;
  90
  91         tcbus_found = 1;
  92
  93         switch (systype) {
  94 #ifdef DEC_3MAX
  95         case DS_3MAX:
  96                 tba = &kn02_tc_desc[0]; break;
  97 #endif
  98 #ifdef DEC_3MIN
  99         case DS_3MIN:
 100                 tba = &kmin_tc_desc[0]; break;
 101 #endif
 102 #ifdef DEC_MAXINE
 103         case DS_MAXINE:
 104                 tba = &xine_tc_desc[0]; break;
 105 #endif
 106 #ifdef DEC_3MAXPLUS
 107         case DS_3MAXPLUS:
 108                 tba = &kn03_tc_desc[0]; break;
 109 #endif
 110         default:
 111                 panic("tcbus_attach: no TURBOchannel configured for systype = %d", systype);
 112         }
 113
 114         tba->tba_busname = "tc";
 115         tba->tba_memt = 0;
 116         tba->tba_intr_evcnt = tc_ds_intr_evcnt;
 117         tba->tba_intr_establish = tc_ds_intr_establish;
 118         tba->tba_intr_disestablish = tc_ds_intr_disestablish;
 119         tba->tba_get_dma_tag = tc_ds_get_dma_tag;
 120
 121         tcattach(parent, self, tba);
 122 }
 123
 124 /*
 125  * Dispatch to model specific interrupt line evcnt fetch rontine
 126  */
 127 static const struct evcnt *
 128 tc_ds_intr_evcnt(struct device *dev, void *cookie)
 129 {
 130
 131         /* XXX for now, no evcnt parent reported */
 132         return NULL;
 133 }
 134
 135 /*
 136  * Dispatch to model specific interrupt establishing routine
 137  */
 138 static void
 139 tc_ds_intr_establish(struct device *dev, void *cookie, int level, int (*handler)(void *), void *val)
 140 {
 141
 142         (*platform.intr_establish)(dev, cookie, level, handler, val);
 143 }
 144
 145 static void
 146 tc_ds_intr_disestablish(struct device *dev, void *arg)
 147 {
 148
 149         printf("cannot disestablish TC interrupts\n");
 150 }
 151
 152 /*
 153  * Return the DMA tag for use by the specified TURBOchannel slot.
 154  */
 155 static bus_dma_tag_t
 156 tc_ds_get_dma_tag(int slot)
 157 {
 158         /*
 159          * All DECstations use the default DMA tag.
 160          */
 161         return (&pmax_default_bus_dma_tag);
 162 }
 163
 164 #include "wsdisplay.h"
 165
 166 #if NWSDISPLAY > 0
 167
 168 #include "sfb.h"
 169 /* #include "sfbp.h" */
 170 #include "cfb.h"
 171 #include "mfb.h"
 172 #include "tfb.h"
 173 #include "xcfb.h"
 174 #include "px.h"
 175 #include "pxg.h"
 176
 177 #include <pmax/pmax/cons.h>
 178 #include <machine/dec_prom.h>
 179
 180 int     tc_checkslot(tc_addr_t, char *);
 181
 182 struct cnboards {
 183         const char      *cb_tcname;
 184         void    (*cb_cnattach)(tc_addr_t);
 185 } static const cnboards[] = {
 186 #if NXCFB > 0
 187         { "PMAG-DV ", xcfb_cnattach },
 188 #endif
 189 #if NSFB > 0
 190         { "PMAGB-BA", sfb_cnattach },
 191 #endif
 192 #if NSFBP > 0
 193         { "PMAGD   ", sfbp_cnattach },
 194 #endif
 195 #if NCFB > 0
 196         { "PMAG-BA ", cfb_cnattach },
 197 #endif
 198 #if NMFB > 0
 199         { "PMAG-AA ", mfb_cnattach },
 200 #endif
 201 #if NTFB > 0
 202         { "PMAG-JA ", tfb_cnattach },
 203 #endif
 204 #if NPX > 0
 205         { "PMAG-CA ", px_cnattach },
 206 #endif
 207 #if NPXG > 0
 208         { "PMAG-DA ", pxg_cnattach },
 209         { "PMAG-FA ", pxg_cnattach },
 210         { "PMAG-FB ", pxg_cnattach },
 211         { "PMAGB-FA", pxg_cnattach },
 212         { "PMAGB-FB", pxg_cnattach },
 213 #endif
 214 };
 215
 216 int
 217 tcfb_cnattach(int slotno)
 218 {
 219         paddr_t tcaddr;
 220         char tcname[TC_ROM_LLEN];
 221         int i;
 222
 223         tcaddr = (*callv->_slot_address)(slotno);
 224         if (tc_badaddr(tcaddr) || tc_checkslot(tcaddr, tcname) == 0)
 225                 panic("TC console designated by PROM does not exist!?");
 226
 227         for (i = 0; i < sizeof(cnboards) / sizeof(cnboards[0]); i++)
 228                 if (strncmp(tcname, cnboards[i].cb_tcname, TC_ROM_LLEN) == 0)
 229                         break;
 230
 231         if (i == sizeof(cnboards) / sizeof(cnboards[0]))
 232                 return (0);
 233
 234         (cnboards[i].cb_cnattach)((tc_addr_t)TC_PHYS_TO_UNCACHED(tcaddr));
 235         return (1);
 236 }
 237
 238 #endif  /* NWSDISPLAY */