sys/arch/atari/stand/tostools/libtos/sysinfo.c

   1 /*      $NetBSD: sysinfo.c,v 1.8 2009/01/06 13:35:30 tsutsui Exp $      */
   2
   3 /*-
   4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Leo Weppelman.
   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 #ifdef TOSTOOLS
  33 #include <stdio.h>
  34 #include <sys/types.h>
  35 #else
  36
  37 #include <lib/libsa/stand.h>
  38 #include <atari_stand.h>
  39 #include <libkern.h>
  40 #include <machine/cpu.h>
  41 #endif /* TOSTOOLS */
  42
  43 #include "libtos.h"
  44 #include "tosdefs.h"
  45 #include "kparamb.h"
  46 /*
  47  * Extract memory and CPU/FPU info from system.
  48  */
  49 void
  50 sys_info(osdsc_t *od)
  51 {
  52         long    *jar;
  53         OSH     *oshdr;
  54
  55         od->cputype = 0;
  56
  57         /*
  58          * Some GEMDOS versions use a different year-base in the RTC.
  59          */
  60         oshdr = *ADDR_OSHEAD;
  61         oshdr = oshdr->os_beg;
  62         if ((oshdr->os_version > 0x0300) && (oshdr->os_version < 0x0306))
  63                 od->cputype |= ATARI_CLKBROKEN;
  64
  65         /*
  66          * Auto configure memory sizes when they are not pre-set.
  67          */
  68         if (od->stmem_size <= 0)
  69                 od->stmem_size  = *ADDR_PHYSTOP;
  70
  71         if (od->ttmem_size)
  72                 od->ttmem_start  = TTRAM_BASE;
  73         else {
  74                 if (*ADDR_CHKRAMTOP == RAMTOP_MAGIC) {
  75                         od->ttmem_size  = *ADDR_RAMTOP;
  76                         if (od->ttmem_size > TTRAM_BASE) {
  77                                 od->ttmem_size  -= TTRAM_BASE;
  78                                 od->ttmem_start  = TTRAM_BASE;
  79                         }
  80                         else od->ttmem_size = 0;
  81                 }
  82         }
  83
  84         /*
  85          * Scan cookiejar for CPU types, accellerator boards, etc.
  86          */
  87         jar = *ADDR_P_COOKIE;
  88         if (jar != NULL) {
  89                 do {
  90                     if (jar[0] == 0x5f435055) { /* _CPU */
  91                         switch (jar[1]) {
  92                                 case 0:
  93                                         od->cputype |= ATARI_68000;
  94                                         break;
  95                                 case 10:
  96                                         od->cputype |= ATARI_68010;
  97                                         break;
  98                                 case 20:
  99                                         od->cputype |= ATARI_68020;
 100                                         break;
 101                                 case 30:
 102                                         od->cputype |= ATARI_68030;
 103                                         break;
 104                                 case 40:
 105                                         od->cputype |= ATARI_68040;
 106                                         break;
 107                                 case 60:
 108                                         od->cputype |= ATARI_68060;
 109                                         break;
 110                                 default:
 111                                         /* This error is caught later on */
 112                                         break;
 113                         }
 114                     }
 115                     if (jar[0] == 0x42504658) { /* BPFX */
 116                         unsigned long   *p;
 117
 118                         p = (unsigned long*)jar[1];
 119
 120                         od->ttmem_start = p[1];
 121                         od->ttmem_size  = p[2];
 122                     }
 123                     if (jar[0] == 0x5f435432) { /* _CT2 */
 124                         /*
 125                          * The CT2 board has a different physical base address!
 126                          */
 127                         od->ttmem_start = CTRAM_BASE;
 128                     }
 129                     jar = &jar[2];
 130                 } while (jar[-2]);
 131         }
 132 }