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sysinfo.c revision 1.1 
      1 /*	$NetBSD: sysinfo.c,v 1.1 2001/10/10 14:19:53 leo 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  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <stdio.h>
     40 #include <sys/types.h>
     41 #include "tosdefs.h"
     42 #include "kparamb.h"
     43 #include "libtos.h"
     44 /*
     45  * Extract memory and cpu/fpu info from system.
     46  */
     47 void
     48 sys_info(od)
     49 osdsc_t	*od;
     50 {
     51 	long	*jar;
     52 	OSH	*oshdr;
     53 
     54 	od->cputype = 0;
     55 
     56 	/*
     57 	 * Some GEMDOS versions use a different year-base in the RTC.
     58 	 */
     59 	oshdr = *ADDR_OSHEAD;
     60 	oshdr = oshdr->os_beg;
     61 	if ((oshdr->os_version > 0x0300) && (oshdr->os_version < 0x0306))
     62 		od->cputype |= ATARI_CLKBROKEN;
     63 
     64 	/*
     65 	 * Auto configure memory sizes when they are not pre-set.
     66 	 */
     67 	if (od->stmem_size <= 0)
     68 		od->stmem_size  = *ADDR_PHYSTOP;
     69 
     70 	if (od->ttmem_size)
     71 		od->ttmem_start  = TTRAM_BASE;
     72 	else {
     73 		if (*ADDR_CHKRAMTOP == RAMTOP_MAGIC) {
     74 			od->ttmem_size  = *ADDR_RAMTOP;
     75 			if (od->ttmem_size > TTRAM_BASE) {
     76 				od->ttmem_size  -= TTRAM_BASE;
     77 				od->ttmem_start  = TTRAM_BASE;
     78 			}
     79 			else od->ttmem_size = 0;
     80 		}
     81 	}
     82 
     83 	/*
     84 	 * Scan cookiejar for cpu types, accellerator boards, etc.
     85 	 */
     86 	jar = *ADDR_P_COOKIE;
     87 	if (jar != NULL) {
     88 		do {
     89 		    if (jar[0] == 0x5f435055) { /* _CPU	*/
     90 			switch (jar[1]) {
     91 				case 0:
     92 					od->cputype |= ATARI_68000;
     93 					break;
     94 				case 10:
     95 					od->cputype |= ATARI_68010;
     96 					break;
     97 				case 20:
     98 					od->cputype |= ATARI_68020;
     99 					break;
    100 				case 30:
    101 					od->cputype |= ATARI_68030;
    102 					break;
    103 				case 40:
    104 					od->cputype |= ATARI_68040;
    105 					break;
    106 				case 60:
    107 					od->cputype |= ATARI_68060;
    108 					break;
    109 				default:
    110 					/* This error is caught later on */
    111 					break;
    112 		        }
    113 		    }
    114 		    if (jar[0] == 0x42504658) { /* BPFX	*/
    115 			unsigned long	*p;
    116 
    117 			p = (unsigned long*)jar[1];
    118 
    119 			od->ttmem_start = p[1];
    120 			od->ttmem_size  = p[2];
    121 		    }
    122 		    if (jar[0] == 0x5f435432) { /* _CT2	*/
    123 			/*
    124 			 * The CT2 board has a different physical base address!
    125 			 */
    126 			od->ttmem_start = CTRAM_BASE;
    127 		    }
    128 		    jar = &jar[2];
    129 		} while (jar[-2]);
    130 	}
    131 }
    132